CN111132217A

CN111132217A - Communication method and device

Info

Publication number: CN111132217A
Application number: CN201811297379.1A
Authority: CN
Inventors: 王生; 常俊仁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2020-05-08

Abstract

The application provides a communication method and a device, wherein the communication method comprises the following steps: suspending a third signaling radio bearer established with the second access network device; the measurement information of the second access network equipment is sent to the first access network equipment through the first signaling radio bearer of the first access network equipment, so that the reporting of the measurement information of the second access network equipment can be ensured under the condition that the signaling radio bearers of the terminal equipment and the second access network equipment are suspended.

Description

Communication method and device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and apparatus.

Background

The Dual Connection (DC) technique means that a terminal device can simultaneously transmit and receive data at two base stations. One base station is responsible for sending Radio Resource Control (RRC) messages to a terminal device and interacting with a core network control plane entity, and is called a primary base station, and the other base station is called an auxiliary base station.

A Signaling Radio Bearer (SRB) may be established between the terminal device and the primary base station, and a signaling radio bearer may also be established between the terminal device and the secondary base station. In the prior art, a signaling radio bearer between a terminal device and a primary base station is denoted as SRB1, and a signaling radio bearer between a terminal device and a secondary base station is denoted as SRB 3.

In the prior art, the measurement information of the secondary base station reported by the terminal device is specified as follows: when the SRB3 is not configured, the terminal device reports the measurement information of the secondary base station using the SRB1, and when the SRB3 is configured, the terminal device reports the measurement information of the secondary base station using the SRB 1.

In some scenarios, the configured SRB3 may be suspended, and in this case, according to the prior art, the terminal device cannot report the measurement information of the secondary base station according to the specification of reporting the measurement information of the secondary base station by the terminal device.

Disclosure of Invention

The application provides a communication method and a communication device, which can ensure the report of the measurement information of an auxiliary base station under the condition that the signaling radio bearer between a terminal device and the auxiliary base station is suspended.

In a first aspect, a communication method is provided, and the communication method includes: suspending a third signaling radio bearer (SRB3) established with the second access network device; the measurement information of the second access network device is sent to the first access network device over a first signaling radio bearer (SRB1) of the first access network device.

Therefore, in the solution provided by the present application, under the condition that the third signaling radio bearer established with the second access network device is suspended, the measurement information of the second access network device is reported to the network side through the first signaling radio bearer of the first access network device, so that the reporting of the measurement information of the second access network device can be ensured under the condition that the third signaling radio bearer is suspended.

For example, when the first access network device is a primary base station and the second access network device is a secondary base station, reporting of measurement information of the secondary base station can be ensured under the condition that a signaling radio bearer between the terminal device and the secondary base station is suspended.

As an implementation, the measurement information of the second access network device may be cell measurement information of the second access network device.

As another implementation, the measurement information of the second access network device may also be other measurement information about the second access network device.

The measurement information of the second access network device may also be a measurement report, e.g. a cell measurement report.

With reference to the first aspect, in a possible implementation manner of the first aspect, sending measurement information of a second access network device to a first access network device through a first signaling radio bearer of the first access network device includes: and when the Secondary Cell Group (SCG) fails, sending the measurement information of the second access network equipment to the first access network equipment by using a first signaling radio bearer.

Typically, when an SCG fails, SRB3 may be suspended.

It should be appreciated that in case of SCG failure, the first access network device needs to decide to maintain, change or release SCG based on the cell measurement information of the second access network device. Therefore, when the SCG fails, the cell measurement information of the second access network device needs to be reported to the first access network device.

The existing protocol provides that when SBR3 is not configured, the terminal device uses SRB1 to report the cell measurement information of the second access network device, and when SRB3 is configured, the terminal device uses SRB3 to report the cell measurement information of the second access network device. When the SCG fails, although the SRB3 is configured, the SRB3 is suspended, and according to the existing protocol, the report of the cell measurement information of the second access network device cannot be realized.

According to the scheme provided by the application, when the SCG fails, the SRB1 is used for sending the measurement information of the second access network equipment to the first access network equipment, so that the report of the cell measurement information of the second access network equipment can be effectively ensured when the SCG fails, and the first access network equipment can conveniently decide to maintain, change or release the SCG according to the cell measurement information of the second access network equipment.

With reference to the first aspect, in a possible implementation manner of the first aspect, the communication method further includes: and sending an auxiliary cell group failure message to the first access network equipment, wherein the auxiliary cell group failure message does not include the measurement information of the second access network equipment.

According to the existing protocol, if the SCG failure message does not carry the cell measurement information of the second access network device, the first access network device may temporarily hold the SCG, and start a waiting timer (WaitTimer), and if the first access network device receives the cell measurement information of the second access network device reported by the terminal device before the waiting timer expires, the first access network device may recover the SCG; if the first access network device does not receive the cell measurement information of the second access network device reported by the terminal device before the waiting timer is overtime, the first access network device releases the SCG after the waiting timer is overtime.

Therefore, according to the scheme provided by the application, when the SCG fails and the SRB3 is suspended, the cell measurement information of the second access network device is sent to the first access network device by using the SRB1, so that the report of the cell measurement information of the second access network device can be ensured, and the first access network device can decide to maintain, change or release the SCG according to the cell measurement information of the second access network device.

With reference to the first aspect, in a possible implementation manner of the first aspect, sending measurement information of a second access network device to a first access network device through a first signaling radio bearer of the first access network device includes: and when the cell meeting the measurement event reporting condition of the second access network equipment is detected, sending a measurement report of the cell to the first access network equipment by using a first signaling radio bearer.

The detected cell is the cell meeting the measurement event reporting condition of the second access network equipment.

Optionally, the cell meeting the measurement event reporting condition of the second access network device is a co-frequency neighboring cell of the original primary and secondary cells of the second access network device.

Or, the cell meeting the reporting condition of the measurement event of the second access network device may also have different frequencies from the original primary and secondary cells of the second access network device.

Therefore, according to the scheme provided by the application, when the SRB3 is suspended, the SRB1 is used to send the measurement report of the cell satisfying the measurement event reporting condition of the second access network device to the first access network device, so that the reporting of the cell measurement information of the second access network device can be guaranteed when the SRB3 is suspended.

With reference to the first aspect, in a possible implementation manner of the first aspect, the communication method further includes: and when the third signaling radio bearer is recovered, sending the measurement information of the second access network equipment to the second access network equipment by using the third signaling radio bearer.

Therefore, according to the scheme provided by the application, under the condition that the SRB3 is suspended, the SRB1 is used for sending the measurement information of the second access network device to the first access network device so as to make up for the vulnerability of the existing protocol; in the event that SRB3 is un-suspended, measurement information for the second access network device continues to be sent to the second access network device using SRB3, compatible with existing protocols.

In a second aspect, there is provided a communication device comprising: the processing unit is used for suspending a third signaling radio bearer established with the second access network equipment; a sending unit, configured to send measurement information of a second access network device to a first access network device through a first signaling radio bearer of the first access network device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the sending unit is configured to send, to the first access network device, measurement information of the second access network device by using a first signaling radio bearer when the secondary cell group fails.

With reference to the second aspect, in a possible implementation manner of the second aspect, the sending unit is further configured to send a secondary cell group failure message to the first access network device, where the secondary cell group failure message does not include measurement information of the second access network device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the measurement information of the second access network device is cell measurement information of the second access network device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the sending unit is configured to send, when a cell that meets a measurement event reporting condition of the second access network device is detected, a measurement report of the cell to the first access network device by using a first signaling radio bearer.

With reference to the second aspect, in a possible implementation manner of the second aspect, the sending unit is configured to send the measurement information of the second access network device to the second access network device by using the third signaling radio bearer when the third signaling radio bearer is recovered.

With reference to the second aspect, in a possible implementation manner of the second aspect, the sending unit is configured to send, when a cell that meets a measurement event reporting condition of the second access network device is detected, a measurement report of the cell to the first access network device by using a first signaling radio bearer, where the cell is a co-frequency neighbor cell of an original primary and secondary cell of the second access network device.

In a third aspect, a communication device is provided, which includes a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the processor executes the program to implement any one of the possible communication methods provided in the first aspect.

In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, wherein the computer program, when executed by a processor, implements any one of the possible communication methods provided by the first aspect.

In a fifth aspect, a computer program product is provided containing instructions which, when executed by a computer, cause the computer to implement any one of the possible communication methods provided by the first aspect.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application.

Fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.

Fig. 3 is another schematic flow chart of a communication method according to an embodiment of the present application.

Fig. 4 is a further schematic flowchart of a communication method according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 6 is another schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 7 is a further schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 8 is a further schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 9 is a further schematic block diagram of a communication device according to an embodiment of the present application.

Detailed Description

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

An application scenario of the embodiment of the present application may be Dual Connectivity (DC), as shown in fig. 1.

The terminal device can communicate with two base stations simultaneously. One base station is called a Master Node (MN), and the other base station is called a Secondary Node (SN). The serving cell configured by the master base station for the terminal device is referred to as a Master Cell Group (MCG), and the serving cell configured by the secondary base station for the terminal device is referred to as a Secondary Cell Group (SCG).

The two base stations may be a combination of 4G base stations and 5G base stations. For example, the primary base station is a 4G base station and the secondary base station is a 5G base station.

The 4G base station includes, but is not limited to, an evolved Node B (eNB) in a Long Term Evolution (LTE) system. For example, a 4G base station may also be an Access Point (AP), a transport node (TRP), a Central Unit (CU), or other network entity, and may include some or all of the functions of the above network entities.

The 5G base station in the embodiment of the present application may be a base station in the fifth Generation mobile communication (5G) system, a New Radio (NR) system, or a machine to machine (M2M) system. For example, the 5G base station is a gbb. The 5G base station may also be an Access Point (AP), a transmission node (TRP), a Central Unit (CU), or other network entity, and may include some or all of the functions of the above network entities, which is not limited in this embodiment.

A terminal device in this embodiment may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a Public Land Mobile Network (PLMN) for future evolution, or the like, which is not limited in the embodiments of the present application.

Signaling Radio Bearer (SRB) may be established between the terminal device and the primary base station, and signaling radio bearer may also be established between the terminal device and the secondary base station. Herein, a signaling radio bearer between the terminal device and the primary base station is referred to as a first signaling radio bearer (SRB1), and a signaling radio bearer between the terminal device and the secondary base station is referred to as a third signaling radio bearer (SRB 3).

However, in some scenarios, the SRB3 may be suspended, and in this case, based on the prior art, the terminal device cannot report the measurement information of the secondary base station, for example, cannot report the cell measurement report of the secondary base station.

In view of the above problems, the present application provides a communication method and apparatus, which can ensure reporting of measurement information of an auxiliary base station when signaling radio bearers between a terminal device and the auxiliary base station are suspended.

Fig. 2 is a schematic flow chart of a communication method 200 according to an embodiment of the present application. The communication method 200 is performed by the terminal device shown in fig. 1, for example. As shown in fig. 2, the communication method 200 includes the following steps.

S210, suspending the third signaling radio bearer established with the second access network equipment.

Taking the main body of the communication method 200 as the terminal device as an example, the third signaling radio bearer represents a signaling radio bearer between the terminal device and the second access network device. In other words, the terminal device may transmit signaling directly with the second access network device over the third signaling radio bearer.

S220, sending the measurement information of the second access network equipment to the first access network equipment through the first signaling radio bearer of the first access network equipment.

Taking the execution subject of the communication method 200 as the terminal device as an example, the first signaling radio bearer represents a signaling radio bearer between the terminal device and the first access network device. In other words, the terminal device may transmit signaling directly with the first access network device over the first signaling radio bearer.

The measurement information of the second access network device may be cell measurement information of the second access network device. Alternatively, the measurement information of the second access network device may be other measurement information about the second access network device.

Therefore, in the embodiment of the present application, under the condition that the third signaling radio bearer established with the second access network device is suspended, the measurement information of the second access network device is reported to the network side through the first signaling radio bearer of the first access network device, so that the reporting of the measurement information of the second access network device can be ensured under the condition that the third signaling radio bearer is suspended.

The scheme provided by the embodiment of the present application may be applied to a Dual Connectivity (DC) communication system shown in fig. 1. For example, the first access network device may be a primary base station in the dual-connectivity communication system shown in fig. 1, the second access network device may be a secondary base station shown in fig. 1, and the main body of the communication method 200 may be the terminal device shown in fig. 1.

Therefore, according to the scheme provided by the embodiment of the application, in the dual connectivity communication system, when the signaling radio bearer with the secondary base station is suspended, the measurement information of the secondary base station can be reported through the signaling radio bearer with the primary base station.

The scheme provided by the embodiment of the application can also be applied to a communication system for communicating the terminal equipment which evolves in the future with two or more network equipment. For example, the first access network device and the second access network device may be given other names, which are not limited in this application.

Hereinafter, a description will be given taking as an example a case where the communication system of the embodiment of the present application is a Dual Connectivity (DC) communication system as shown in fig. 1. That is, the execution subject of the communication method 200 is described as a terminal device, a first access network device is a primary base station, and a second access network device is a secondary base station.

The third signaling radio bearer represents a signaling radio bearer between the terminal device and the secondary base station. For example, the third signaling radio bearer may be referred to as SRB 3. The protocol description of the third signaling radio bearer may be:

“SRB3:in EN-DC and NGEN-DC,a direct SRB between the SN and the UE”，

wherein EN-DC represents E-UTRA-NR double connection; NGEN-DC indicates NG-RAN E-UTRA-NR double-connectivity. The main base station of E-UTRA-NR double connection is a 4G base station, the auxiliary base station is a 5G base station, and the core network is a 4G network. The main base station of the NG-RAN E-UTRA-NR double connection is a 4G base station, the secondary base station is a 5G base station, and the core network is a 5G network.

The first signaling radio bearer represents a signaling radio bearer between the terminal device and the master base station. For example, the first signaling radio bearer may be referred to as SRB 1.

For convenience of description, the first signaling radio bearer is hereinafter referred to as SRB1, and the third signaling radio bearer is hereinafter referred to as SRB 3.

Optionally, as an implementation manner of step S220, when a Secondary Cell Group (SCG) fails, the measurement information of the secondary base station is sent to the primary base station using the SRB 1.

SCG denotes a cell configured by the secondary base station. For example, the SCG includes a primary secondary cell (PSCell), or the SCG may further include one or more secondary cells (scells).

The SCG Failure (SCG Failure) represents a communication link Failure of a cell configured by the secondary base station. Typically, when an SCG fails, SRB3 may be suspended.

It should be appreciated that in the event of SCG failure, the primary base station needs to decide to maintain, change or release SCG based on the cell measurement information of the secondary base station. Therefore, when the SCG fails, the secondary base station needs to report the cell measurement information of the secondary base station to the primary base station.

The existing protocol specifies that when SBR3 is not configured, the terminal device reports the cell measurement information of the secondary base station using SRB1, and when SRB3 is configured, the terminal device reports the cell measurement information of the secondary base station using SRB 3. When the SCG fails, although the SRB3 is configured, the SRB3 is suspended, and according to the existing protocol, the reporting of the cell measurement information of the secondary base station cannot be realized.

In the embodiment of the present application, when the SCG fails, the SRB1 is used to send the measurement information of the secondary base station to the primary base station, so that the reporting of the cell measurement information of the secondary base station can be effectively ensured when the SCG fails, and the primary base station can conveniently decide to maintain, change or release the SCG according to the cell measurement information of the secondary base station.

In the case of SCG failure, as shown in fig. 3, the communication method 200 provided in the embodiment of the present application may further include, in addition to steps S210 and S220: s230, sending an SCG Failure message (SCG Failure Information NR message) to the master base station (shown as the first access network device in fig. 3), where the SCG Failure message is used to inform the master base station that the SCG has failed.

As an example, when the SCG fails, if there is no cell of the secondary base station available currently, the terminal device sends the SCG failure message to the primary base station without including the cell measurement information of the secondary base station (shown as the second access network device in fig. 3), as shown in fig. 3.

According to the existing protocol, if the SCG failure message does not carry the cell measurement information of the secondary base station, the primary base station may temporarily hold the SCG and start a waiting timer (WaitTimer), and if the primary base station receives the cell measurement information of the secondary base station reported by the terminal device before the waiting timer expires, the primary base station may recover the SCG; and if the main base station does not receive the cell measurement information of the auxiliary base station reported by the terminal equipment before the waiting timer is overtime, the main base station releases the SCG after the waiting timer is overtime.

Therefore, when the SCG fails, the terminal apparatus transmits the cell measurement information of the secondary base station to the main base station using SRB1, and it is possible to ensure that the cell measurement information of the secondary base station is transmitted to the main base station before the wait timer of the main base station expires to some extent.

As another example, when the SCG fails, if there is a cell of the secondary base station available currently, the SCG failure message sent by the terminal device to the primary base station may carry measurement information of the cell (i.e., cell measurement information of the secondary base station).

In some cases, even if the SCG failure message carries the cell measurement information of the secondary base station, the primary base station may temporarily maintain the SCG, or determine to maintain, change or release the SCG according to the cell measurement information of the secondary base station subsequently reported by the terminal device. In this case, the scheme provided by the embodiment of the present application may also be used to ensure the reporting of the cell measurement information of the secondary base station.

Therefore, in the embodiment of the present application, when the SCG fails and the SRB3 is suspended, the report of the cell measurement information of the secondary base station can be ensured by sending the cell measurement information of the secondary base station to the primary base station using the SRB1, so that the primary base station can decide to maintain, change or release the SCG according to the cell measurement information of the secondary base station.

Alternatively, as another implementation of step S220, when another event occurs that can cause the SRB3 to suspend, the measurement information of the secondary base station is transmitted to the primary base station using the SRB 1.

Optionally, in some embodiments, step S220 includes: when a cell satisfying the measurement event reporting condition of the secondary base station is detected, the SRB1 is used to send a measurement report of the cell to the primary base station.

As an example, the measurement event reporting condition of the secondary base station is a3 measurement event reporting condition.

It should be understood that the measurement event reporting condition of the secondary base station may also be other conditions that trigger the occurrence of the measurement event, and the application is not limited thereto.

Taking the measurement event reporting condition of the secondary base station as an example of the A3 measurement event reporting condition, when the terminal device detects that a cell meets the A3 measurement event reporting condition of the secondary base station, the terminal device measures the cell, and sends the measurement information of the cell to the primary base station by using the SRB 1.

Optionally, in some embodiments, the detected cell is a cell that satisfies a measurement event reporting condition of the secondary base station.

For example, the cell satisfying the reporting condition of the measurement event of the secondary base station is the same-frequency neighbor cell of the original primary and secondary cells of the secondary base station.

For example, assuming that an original PSCELL of the secondary base station is Cell1, when it is detected that a Cell2 having the same frequency as Cell1 satisfies a reporting condition of an A3 measurement event of the secondary base station, Cell measurement information of Cell2 is sent to the primary base station using SRB 1.

Or, the cell meeting the reporting condition of the measurement event of the auxiliary base station may also have different frequency from the original main and auxiliary cells of the auxiliary base station.

In some embodiments, the measurement event reporting condition of the secondary base station may be configured by the secondary base station, or may be configured by the primary base station.

Therefore, in the embodiment of the present application, when the SRB3 is suspended, the SRB1 is used to send the measurement report of the cell satisfying the measurement event reporting condition of the secondary base station to the primary base station, so that the reporting of the cell measurement information of the secondary base station can be ensured when the SRB3 is suspended.

Optionally, the communication method 200 provided in the embodiment of the present application further includes: when the SRB3 is recovered, measurement information of the secondary base station is transmitted to the secondary base station using the SRB 3.

For example, when SCG is restored to be valid, the suspension of SRB3 is released, and at this time, measurement information of the secondary base station is transmitted to the secondary base station using SRB 3.

Therefore, according to the scheme provided by the embodiment of the application, under the condition that the SRB3 is suspended, the SRB1 is used for sending the measurement information of the secondary base station to the primary base station so as to make up for the loophole of the existing protocol; in the case where SRB3 is unsuspended, the SRB3 is continuously used to send measurement information of the secondary base station to the secondary base station, compatible with existing protocols.

Optionally, in some or all of the above embodiments, the measurement information of the secondary base station may be replaced by the cell measurement information of the secondary base station, or the measurement information of the secondary base station may be replaced by the cell measurement report of the secondary base station.

To facilitate a better understanding of the solution provided by the present application, an embodiment of the present application is described below in conjunction with fig. 4.

In fig. 4, the terminal device is denoted as UE, the primary base station is denoted as MN, the secondary base station is denoted as SN, the signaling radio bearer between the terminal device and the primary base station is denoted as SRB1, and the signaling radio bearer between the terminal device and the secondary base station is denoted as SRB 3. As shown in fig. 4, the MN may be an eNB and the SN is a gNB. The present embodiment includes the following steps.

S401, the UE in a connection state resides on an LTE CELL, a signal of a first CELL (NR CELL1) in the environment is turned on, so that the energy of the NR CELL1 meets the reporting condition of the LTE inter-system B1 Measurement event, and the UE reports the Measurement Report (Measurement Report) of the LTE B1 event to the MN.

The signal of the NR cell1 in the environment may be turned on by the system configuration, and the signal of the NRcell1 in the environment may be turned on manually.

S402, the MN initiates an SN Addition Request (SN Addition Request) to the SN where the NR CELL1 is located.

S403, the SN replies to the MN with an acknowledgement message (SN Addition Request acknowledgement) of the SN Addition Request.

S404, the MN sends RRC Connection Reconfiguration message (RRC Connection Reconfiguration), wherein the RRC Connection Reconfiguration message carries the IE (NR SCG add) added by the SCG, configures the PSCELL to be NR CELL1, and configures SRB3(configure SRB 3).

S405, the UE transmits an RRC Connection reconfiguration complete message (RRC Connection reconfiguration complete) to the MN.

S406, the MN sends a SN Reconfiguration Complete message (SN Reconfiguration Complete) to the SN.

S407, the UE initiates a Random Access procedure (Random Access procedure) to the NR CELL1 CELL, and succeeds.

S408, turning off the NR CELL1 CELL signal (fade NR CELL1signal) in the environment, and no other NR CELL (no other NR CELL signal) in the current environment.

The signal of the NR cell1 in the environment may be turned off by the system configuration, and the signal of the NRcell1 in the environment may be turned off manually.

S409, SCG Failure (SCG Failure), UE sends SCG Failure message (SCG Failure information NR message) to MN, and the measurement information of NR cell without SN in the SCG Failure message is reported because there is no other available NR cell in the environment.

S410, opening a signal of an original PSCELL CELL in the environment, namely a co-frequency adjacent CELL (marked as NR CELL2) of the NR CELL1, and adjusting the energy of the NR CELL2 to ensure that the energy of the NR CELL2 meets the report of an NR A3 measurement event configured by SN.

The signal of the NR cell2 in the environment may be turned on by the system configuration, and the signal of the NRcell2 in the environment may be turned on manually.

S411, at this time, SRB3 is suspended, UE sends NR measurement report configured by SN to MN through SRB1, and reports NR A3 event configured by SN, and the target CELL is NR CELL 2.

S412, the MN sends an RRC connection reconfiguration message to the UE, wherein the RRC connection reconfiguration message carries the IE for changing the PSCELL, the PSCELL is configured to be NR CELL2, and the IE for releasing SRB3 is not carried.

S413, the UE sends an RRC connection reconfiguration complete message to the MN.

S414, the UE initiates a random access to the NR CELL2 CELL, and successfully, the Signaling Radio Bearer (SRB) and the Data Radio Bearer (DRB) of the SCG are transferred and recovered.

S415, opening a signal of NR CELL1 (NR CELL1 is a same-frequency adjacent region of NR CELL2), and adjusting the energy of the NR CELL1 to enable the energy to meet the measurement event report of NR A3 configured by SN.

S416, at this time, SRB3 is not suspended, UE sends NR measurement report configured by SN to MN through SRB3, and reports NR A3 event configured by SN, and the target CELL is NR CELL 1.

It should be noted that, in step S401, "opening a signal of a first CELL (NR CELL1) in the environment so that the energy of the NRCELL1 satisfies the reporting condition of the inter-system B1 measurement event of LTE", the actions of step S408, step S410, and step S415 belong to a simulation environment configuration, and are not understood as a communication flow between the UE and the MN and the SN.

As can be seen from the above, in step S411, after it is determined that SRB3 is suspended, the NR measurement report configured by SN is sent to MN through SRB1, so as to trigger subsequent SCG data transmission recovery, thereby making up for the vulnerability of the existing protocol.

After the suspension of SCG is resumed, in step S416, the sending of SN configured NR measurement reports on SRB3 continues.

Method embodiments of the present application are described above, and apparatus embodiments corresponding to the above method embodiments will be described below. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, for the sake of brevity, detailed descriptions may be omitted with reference to the foregoing method embodiments.

As shown in fig. 5, an embodiment of the present application provides a communication device 500, where the communication device 500 includes the following units.

A processing unit 510, configured to suspend the third signaling radio bearer established with the second access network device.

A sending unit 520, configured to send measurement information of a second access network device to a first access network device through a first signaling radio bearer of the first access network device.

Optionally, in some embodiments, the sending unit 520 is configured to send, to the first access network device, measurement information of the second access network device using the first signaling radio bearer when the secondary cell group fails.

Optionally, in some embodiments, the sending unit 520 is further configured to send a secondary cell group failure message to the first access network device, where the measurement information of the second access network device is not included in the secondary cell group failure message.

Optionally, in some embodiments, the measurement information of the second access network device is cell measurement information of the second access network device.

Optionally, in some embodiments, the sending unit 520 is configured to, when a cell that meets a measurement event reporting condition of the second access network device is detected, send a measurement report of the cell to the first access network device by using a first signaling radio bearer.

Optionally, in some embodiments, the sending unit 520 is configured to send the measurement information of the second access network device to the second access network device by using the third signaling radio bearer when the third signaling radio bearer is recovered.

Optionally, in some embodiments, the sending unit 520 is configured to, when a cell meeting a measurement event reporting condition of the second access network device is detected, send a measurement report of the cell to the first access network device by using a first signaling radio bearer, where the cell is a co-frequency neighbor cell of an original primary and secondary cell of the second access network device.

Optionally, in some embodiments, the first access network device is a primary base station, and the second access network device is a secondary base station.

It should be understood that the processing unit 510 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transmitting module 520 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 6, an embodiment of the present application further provides a communication device 600, where the communication device 600 includes a processor 610, a memory 620 and a transceiver 630, where the memory 620 stores instructions or programs, and the processor 610 is configured to execute the instructions or programs stored in the memory 620. When the instructions or programs stored in the memory 620 are executed, the processor 610 is configured to perform the operations performed by the processing unit 510 in the above embodiments, and the transceiver 630 is configured to perform the operations performed by the transmitting unit 520 in the above embodiments.

It should be understood that the communication device 500 or the communication device 600 provided in the embodiment of the present application may correspond to the terminal device in the foregoing method embodiment, and operations and/or functions of each module in the communication device 500 or the communication device 600 are respectively for implementing corresponding flows of each method in fig. 2 to fig. 4, and are not described herein again for brevity.

The embodiment of the application also provides a communication device, which can be a terminal device or a circuit. The communication device may be configured to perform the actions performed by the terminal device in the above-described method embodiments.

When the communication device is a terminal device, fig. 7 shows a simplified structural diagram of the terminal device. For easy understanding and illustration, in fig. 7, the terminal device is exemplified by a mobile phone. As shown in fig. 7, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 7. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 7, the terminal device includes a transceiving unit 710 and a processing unit 720. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device for implementing the receiving function in the transceiver 710 may be regarded as a receiving unit, and a device for implementing the transmitting function in the transceiver 710 may be regarded as a transmitting unit, that is, the transceiver 710 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiver unit 710 is configured to perform the transmitting operation and the receiving operation on the terminal device side in the above method embodiments, and the processing unit 720 is configured to perform other operations besides the transceiving operation on the terminal device in the above method embodiments.

For example, in one implementation manner, the transceiver 710 is configured to perform the transmitting operation on the terminal device side in step S220 in fig. 2, and/or the transceiver 710 is further configured to perform other transceiving steps on the terminal device side in the embodiment of the present application. Processing unit 720 is configured to execute step 210 in fig. 2, and/or processing unit 720 is further configured to execute other processing steps on the terminal device side in the embodiment of the present application.

For another example, in another implementation manner, the transceiver 710 is configured to perform the sending operation on the terminal device side in step S230 in fig. 3, and/or the transceiver 720 is further configured to perform other transceiving steps on the terminal device side in this embodiment of the present application.

For another example, in another implementation manner, the transceiver 710 is configured to perform a receiving operation or a transmitting operation on the UE side in fig. 4, and/or the transceiver 710 is further configured to perform other transceiving steps on the terminal device side in the embodiment of the present application. Processing unit 720 is configured to perform the processing steps at the UE side in fig. 4, and/or processing unit 720 is further configured to perform other processing steps at the terminal device side in this embodiment.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

When the communication device in this embodiment is a terminal device, reference may be made to the device shown in fig. 8. As an example, the device may perform functions similar to processor 810 in FIG. 8. In fig. 8, the apparatus includes a processor 810, a transmit data processor 820, and a receive data processor 830. The processing module 710 in the above embodiments may be the processor 810 in fig. 8, and performs corresponding functions. The transceiver module 720 in the above embodiments may be the transmit data processor 820 and/or the receive data processor 830 in fig. 8. Although fig. 8 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.

Fig. 9 shows another form of the present embodiment. The processing device 900 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may act as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 903, an interface 904. The processor 903 performs the functions of the processing module 710, and the interface 904 performs the functions of the transceiver module 720. As another variation, the modulation subsystem includes a memory 906, a processor 903, and a program stored on the memory 906 and executable on the processor, and the processor 903 executes the program to implement the method on the terminal device side in the above method embodiments. It should be noted that the memory 906 may be non-volatile or volatile, and may be located within the modulation subsystem or within the processing device 900, as long as the memory 906 is connected to the processor 903.

As another form of the present embodiment, there is provided a computer-readable storage medium having stored thereon instructions that, when executed, perform the method on the terminal device side in the above-described method embodiments.

As another form of the present embodiment, there is provided a computer program product containing instructions that, when executed, perform the method on the terminal device side in the above-described method embodiments.

It should be understood that the various numerical designations of first, second, etc. referred to herein are merely used to distinguish one from another for convenience of description and are not intended to limit the scope of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

suspending a third signaling radio bearer established with the second access network device;

and sending the measurement information of the second access network equipment to the first access network equipment through a first signaling radio bearer of the first access network equipment.

2. The communication method of claim 1, wherein the sending the measurement information of the second access network device to the first access network device through the first signaling radio bearer of the first access network device comprises:

and when the secondary cell group fails, sending the measurement information of the second access network equipment to the first access network equipment by using the first signaling radio bearer.

3. The communication method according to claim 2, further comprising:

and sending an auxiliary cell group invalidation message to the first access network equipment, wherein the auxiliary cell group invalidation message does not comprise the measurement information of the second access network equipment.

4. The communication method according to any one of claims 1 to 3, wherein the measurement information of the second access network device is cell measurement information of the second access network device.

5. The communication method according to any one of claims 1 to 4, wherein the sending the measurement information of the second access network device to the first access network device through the first signaling radio bearer of the first access network device comprises:

and when a cell meeting the measurement event reporting condition of the second access network equipment is detected, sending a measurement report of the cell to the first access network equipment by using the first signaling radio bearer.

6. The communication method according to any one of claims 1 to 5, characterized in that the communication method further comprises:

and when the third signaling radio bearer is recovered, sending the measurement information of the second access network equipment to the second access network equipment by using the third signaling radio bearer.

7. The communication method according to claim 5, wherein the cell is a co-frequency neighbor cell of an original primary and secondary cell of the second access network device.

8. A communication device, comprising:

the processing unit is used for suspending a third signaling radio bearer established with the second access network equipment;

a sending unit, configured to send the measurement information of the second access network device to a first access network device through a first signaling radio bearer of the first access network device.

9. The communications device of claim 8, wherein the sending unit is configured to send the measurement information of the second access network device to the first access network device using the first signaling radio bearer when the secondary cell group fails.

10. The communications device of claim 9, wherein the sending unit is further configured to send a secondary cell group failure message to the first access network device, and the measurement information of the second access network device is not included in the secondary cell group failure message.

11. The communications device of any of claims 8-10, wherein the measurement information of the second access network device is cell measurement information of the second access network device.

12. The communications device according to any one of claims 8 to 11, wherein the sending unit is configured to, when a cell satisfying a measurement event reporting condition of the second access network device is detected, send a measurement report of the cell to the first access network device using the first signaling radio bearer.

13. The communications device according to any one of claims 8 to 12, wherein the sending unit is configured to send the measurement information of the second access network device to the second access network device using the third signaling radio bearer when the third signaling radio bearer is recovered.

14. The communications device of claim 12, wherein the cell is a co-frequency neighbor cell of an original primary and secondary cell of the second access network device.

15. A communication device comprising a memory, a processor and a program stored on the memory and executable on the processor, characterized in that the processor implements the communication method of any one of claims 1 to 7 when executing the program.

16. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the communication method according to any one of claims 1 to 7.