A state conversion method and device, and communication equipment

Abstract

An embodiment of the present application provides a state transition method and apparatus, and a communication device, the method comprising: a primary node receives first indication information sent by a secondary node, the first indication information being used to indicate that the service on the secondary node side is inactive; if the primary node determines that no downlink data is forwarded to the secondary node and / or no uplink data is sent from the secondary node, the primary node sends a first confirmation information to the secondary node, and the first confirmation information is used to trigger the SCG to enter a sleep state.

Description

[0001] This application is a divisional application of an application with an application date of November 7, 2019, application number 2019801018249, and invention name “A state transition method and device, and communication equipment”. Technical Field

[0002] The embodiments of the present application relate to the field of mobile communication technology, and specifically to a state conversion method and apparatus, and a communication device. Background Art

[0003] In order to support energy saving of terminal devices and quickly establish a secondary cell group (SCG), the concept of dormancy SCG is proposed. Dormancy SCG means that all cells in the SCG are in a dormancy state. Cells in a dormancy state can be called dormancy cells. In a dormancy cell, the terminal device does not monitor the physical downlink control channel (PDCCH), does not send and receive data, but performs radio resource management (RRM) / channel status indication (CSI) measurement and beam management. Therefore, how to support dormancy SCG is an issue that needs to be clarified. Summary of the invention

[0004] The embodiments of the present application provide a state conversion method and apparatus, and a communication device.

[0005] The state conversion method provided in the embodiment of the present application includes:

[0006] The primary node receives first indication information sent by the secondary node, where the first indication information is used to indicate that a service on the secondary node side is inactive;

[0007] If the master node determines that no downlink data is forwarded to the slave node and / or no uplink data is sent from the slave node, the master node sends a first confirmation message to the slave node, where the first confirmation message is used to trigger the SCG to enter a sleep state.

[0008] The state conversion method provided in the embodiment of the present application includes:

[0009] The secondary node sends first indication information to the primary node, where the first indication information is used to indicate that the service on the secondary node side is inactive;

[0010] If the secondary node receives the first confirmation information sent by the primary node, it triggers the SCG to enter a sleep state.

[0011] The state conversion method provided in the embodiment of the present application includes:

[0012] When the SCG is in a sleep state or an inactive state, if the master node determines that there is downlink data to be forwarded to the slave node or the master node receives a third notification message sent by the terminal device, and the third notification message is used to notify the master node to trigger the SCG to enter a non-sleep state, the master node sends a first request message to the slave node, and the first request message is used to request the SCG to enter a non-sleep state or an active state.

[0013] The state conversion method provided in the embodiment of the present application includes:

[0014] When the SCG is in a dormant state or an inactive state, if the auxiliary node determines that downlink data has reached the auxiliary node, the auxiliary node triggers the SCG to enter a non-dormant state or an active state.

[0015] The state conversion method provided in the embodiment of the present application includes:

[0016] If the terminal device determines that there is uplink data to be sent to the secondary node, the terminal device sends a third notification message to the primary node, and the third notification message is used to notify the primary node to trigger the SCG to enter a non-sleep state or an activated state.

[0017] The state conversion device provided in the embodiment of the present application includes:

[0018] A receiving unit, configured to receive first indication information sent by a secondary node, where the first indication information is used to indicate that a service on the secondary node side is inactive;

[0019] a determining unit, configured to determine that no downlink data is forwarded to the secondary node and / or no uplink data is sent from the secondary node;

[0020] A sending unit is used to send first confirmation information to the auxiliary node, where the first confirmation information is used to trigger the SCG to enter a sleep state.

[0021] The state conversion device provided in the embodiment of the present application includes:

[0022] A sending unit, configured to send first indication information to the primary node, wherein the first indication information is used to indicate that the service on the secondary node side is inactive;

[0023] The receiving unit is used to trigger the SCG to enter a sleep state if the first confirmation information sent by the master node is received.

[0024] The state conversion device provided in the embodiment of the present application includes:

[0025] A sending unit is used to send a first request message to the secondary node when the SCG is in a sleep state or an inactive state. The first request message is used to request the SCG to enter a non-sleep state or an active state. If the primary node determines that there is downlink data to be forwarded to the secondary node or the primary node receives a third notification message sent by a terminal device, and the third notification message is used to notify the primary node to trigger the SCG to enter a non-sleep state.

[0026] The state conversion device provided in the embodiment of the present application includes:

[0027] The trigger unit is used to trigger the SCG to enter a non-sleeping state or an activated state when it is determined that downlink data has reached the auxiliary node when the SCG is in a dormant state or an inactivated state.

[0028] The state conversion device provided in the embodiment of the present application includes:

[0029] A determination unit, used to determine that there is uplink data to be sent to the auxiliary node;

[0030] A sending unit is used to send a third notification message to the master node, where the third notification message is used to notify the master node to trigger the SCG to enter a non-sleep state or an activated state.

[0031] The communication device provided in the embodiment of the present application includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the above-mentioned state conversion method.

[0032] The chip provided in the embodiment of the present application is used to implement the above-mentioned state conversion method.

[0033] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned state conversion method.

[0034] The computer-readable storage medium provided in the embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned state conversion method.

[0035] The computer program product provided in the embodiment of the present application includes computer program instructions, which enable a computer to execute the above-mentioned state conversion method.

[0036] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned state conversion method.

[0037] Through the above technical solution, the network side process and behavior during the transition of the SCG between the dormancy state and the non-dormancy state are clarified, so that the network side effectively supports the dormancy SCG function. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0039] Figure 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

[0040] Figure 2 A diagram of the network deployment and networking architecture of EN-DC provided in an embodiment of the present application;

[0041] Figure 3-1 Schematic diagram of BWP provided in the embodiment of the present application Figure 1 ;

[0042] Figure 3-2 Schematic diagram of BWP provided in the embodiment of the present application Figure 2 ;

[0043] Figure 3-3 Schematic diagram 3 of the BWP provided in the embodiment of the present application;

[0044] Figure 4 Schematic diagram of the state conversion method provided in the embodiment of the present application Figure 1 ;

[0045] Figure 5 An interactive flow chart of Example 1 provided in an embodiment of the present application;

[0046] Figure 6 Schematic diagram of the state conversion method provided in the embodiment of the present application Figure 2 ;

[0047] Figure 7 Flow chart 3 of the state conversion method provided in the embodiment of the present application;

[0048] Figure 8 An interactive flow chart of Example 2 provided in an embodiment of the present application;

[0049] Fig. 9 An interactive flow chart of Example 3 provided in an embodiment of the present application;

[0050] Fig.10 An interactive flow chart of Example 4 provided in an embodiment of the present application;

[0051] Fig.11 Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 1 ;

[0052] Fig.12 Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 2 ;

[0053] Fig.13 Schematic diagram 3 of the structure composition of the state conversion device provided in the embodiment of the present application;

[0054] Fig.14 Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 4 ;

[0055] Fig.15 Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 5 ;

[0056] Fig.16 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0057] Fig.17 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0058] Fig.18 It is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0060] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, 5G communication system or future communication system, etc.

[0061] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). The network device 110 may provide communication coverage for a specific geographical area, and may communicate with terminals located within the coverage area. Optionally, the network device 110 may be an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system, etc.

[0062] The communication system 100 also includes at least one terminal 120 located within the coverage of the network device 110. As used herein, "terminal" includes but is not limited to connecting via a wired line, such as via a Public Switched Telephone Networks (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or another terminal configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communications capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, Web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A terminal may refer to an access terminal, User Equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can 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 capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5G network, or a terminal in a future evolved PLMN, etc.

[0063] Optionally, the terminals 120 may perform device-to-device (D2D) communication.

[0064] Optionally, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

[0065] Figure 1 One network device and two terminals are shown exemplarily. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminals within its coverage area, which is not limited in the embodiments of the present application.

[0066] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0067] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal 120 with communication functions. The network device 110 and the terminal 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0068] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0069] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions related to the embodiments of the present application are described below.

[0070] With the pursuit of speed, latency, high-speed mobility, energy efficiency and the diversity and complexity of services in future life, the Third Generation Partnership Project (3GPP) rd The 3rd Generation Partnership Project (3GPP) international standard organization has begun to develop 5G. The main application scenarios of 5G are: enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC).

[0071] On the one hand, eMBB still aims at users to obtain multimedia content, services and data, and its demand is growing rapidly. On the other hand, since eMBB may be deployed in different scenarios, such as indoors, in urban areas, and in rural areas, its capabilities and requirements vary greatly, so it cannot be generalized and must be analyzed in detail in combination with specific deployment scenarios. Typical applications of URLLC include: industrial automation, power automation, remote medical operations (surgery), traffic safety, etc. Typical features of mMTC include: high connection density, small data volume, latency-insensitive services, low cost and long service life of modules, etc.

[0072] In the early days of NR deployment, complete NR coverage was difficult to obtain, so the typical network coverage was wide-area LTE coverage and NR island coverage. In addition, a large number of LTEs are deployed below 6GHz, and there is little spectrum below 6GHz available for 5G. Therefore, NR must study spectrum applications above 6GHz, but high-frequency bands have limited coverage and fast signal fading. At the same time, in order to protect mobile operators' early investments in LTE, a tight interworking working mode between LTE and NR was proposed.

[0073] In order to realize 5G network deployment and commercial applications as soon as possible, 3GPP completed the first 5G version, namely EN-DC (LTE-NR Dual Connectivity). In EN-DC, the LTE base station (eNB) serves as the master node (MN), and the NR base station (gNB or en-gNB) serves as the secondary node (SN). The network deployment and networking architecture of EN-DC are as follows: Figure 2 As shown in FIG. 1 , the Evolved Universal Terrestrial Radio Access Network (E-UTRAN) represents the access network part, the Evolved Packet Core network (EPC) represents the core network part, and the access network part is composed of at least one eNB ( Figure 2 Two eNBs) and at least one en-gNB ( Figure 2 In the figure, two en-gNBs are shown, where the eNB acts as the MN and the en-gNB acts as the SN. Both the MN and the SN are connected to the EPC. In the later stage of R15, other DC modes will be supported, namely NE-DC, 5GC-EN-DC, and NR DC. For EN-DC, the core network connected to the access network is the EPC, while the core network connected to other DC modes is the 5GC.

[0074] Among them, MN is mainly responsible for RRC control functions and the control plane leading to CN, and SN can configure auxiliary signaling, such as SRB3, which mainly provides data transmission functions.

[0075] In 5G, the maximum channel bandwidth can be 400MHZ (called a wideband carrier). Compared with the maximum 20M bandwidth of LTE, the bandwidth of a wideband carrier is very large. If the terminal device continues to work on a wideband carrier, the power consumption of the terminal device will be very large. Therefore, it is recommended that the radio frequency (RF) bandwidth of the terminal device can be adjusted according to the actual throughput of the terminal device. For this reason, the concept of BWP is introduced. The motivation of BWP is to optimize the power consumption of the terminal device. For example, if the rate of the terminal device is very low, a smaller BWP can be configured for the terminal device (such as Figure 3-1 If the terminal device has a high rate requirement, a larger BWP can be configured for the terminal device (such as Figure 3-2 If the terminal device supports high speed or works in carrier aggregation (CA) mode, multiple BWPs can be configured for the terminal device (such as Figure 3-3 Another purpose of BWP is to trigger the coexistence of multiple numerologies in a cell, such as Figure 3-3 As shown, BWP1 corresponds to basic parameter set (numerology) 1, and BWP2 corresponds to numerology2.

[0076] A terminal can be configured with up to 4 uplink BWPs and up to 4 downlink BWPs through dedicated signaling of Radio Resource Control (RRC), but only one uplink BWP and downlink BWP can be activated at the same time. In the RRC dedicated signaling, the first activated BWP among the configured BWPs can be indicated. At the same time, when the terminal is in the connected state, it can also switch between different BWPs through downlink control information (DCI). When a carrier in an inactive state enters an activated state, the first activated BWP is the first activated BWP configured in the RRC dedicated signaling. The configuration parameters of each BWP include:

[0077] - Subcarrier Spacing;

[0078] -cyclicPrefix;

[0079] -The first physical resource block (PRB) of the BWP and the number of consecutive PRBs (locationAndBandwidth);

[0080] -BWP identification (bwp-Id);

[0081] -BWP common configuration parameters and dedicated configuration parameters (bwp-Common, bwp-Dedicated).

[0082] When performing Radio Link Monitor (RLM), the terminal only performs it on the activated BWP. No operation is required on the inactive BWP. When switching between different BWPs, there is no need to reset the RLM-related timers and counters. For RRM measurement, no matter which activated BWP the terminal sends or receives data on, it does not affect the RRM measurement. For CQI measurement, the terminal only needs to perform it on the activated BWP.

[0083] When a carrier is deactivated and then activated through a Media Access Control Control Element (MAC CE), the initial first activated BWP is the first activated BWP configured in the RRC dedicated signaling.

[0084] The value of the BWP identifier (BWP id) in the RRC dedicated signaling is 0 to 4, and the BWP with a BWP identifier of 0 is the initial BWP by default.

[0085] In DCI, the BWP indicator is 2 bits, as shown in Table 1 below. If the number of configured BWPs is less than or equal to 3, BWP indicator = 1, 2, 3 correspond to BWP id = 1, 2, 3 respectively. If the number of BWPs is 4, BWP indicator = 0, 1, 2, 3 correspond to the BWPs configured according to the sequential index. In addition, the network side uses consecutive BWP ids when configuring BWPs.

[0086]

[0087] Table 1

[0088] In order to meet the demand for high rates, 5G also supports CA technology. CA enables the NR system to support a larger bandwidth by jointly scheduling and using resources on multiple component carriers (CCs), thereby achieving a higher system peak rate. According to the continuity of the aggregated carriers in the spectrum, it can be divided into continuous carrier aggregation and non-continuous carrier aggregation; according to whether the bandwidth (band) of the aggregated carriers is the same, it can be divided into intra-band carrier aggregation and inter-band carrier aggregation.

[0089] In CA, there is only one primary carrier (Primary Cell Component, PCC), which provides RRC signaling connection, non-access stratum (NAS) function, security function, etc. The physical uplink control channel (Physical Uplink Control Channel, PUCCH) is on the PCC and only exists on the PCC. The secondary carrier (Secondary Cell Component, SCC) only provides additional wireless resources. PCC and SCC are collectively referred to as service cells, where the cell on the PCC is the primary cell (Primary cell, Pcell) and the cell on the SCC is the Scell. The standard also stipulates that a maximum of 5 aggregated carriers are supported, that is, the maximum bandwidth after aggregation is 100MHZ, and the aggregated carriers belong to the same base station. All aggregated carriers use the same cell radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI), and the base station implements to ensure that the C-RNTI does not conflict in the cell where each carrier is located. Since both asymmetric carrier aggregation and symmetric carrier aggregation are supported, it is required that the aggregated carrier must have downlink and may not have uplink. Moreover, for a PCC cell, there must be its own PDCCH and PUCCH, and other secondary carrier cells may have PUCCH.

[0090] In order to support energy saving of terminal devices and quickly establish SCG, the concept of dormancy SCG is proposed. Dormancy SCG means that all cells in SCG are in a dormant state. Cells in a dormant state can be called dormancy cells. Terminal devices do not monitor PDCCH in dormancy cells, do not send and receive data, but perform RRM / CSI measurements and beam management. Therefore, how to support dormancy SCG is a problem that needs to be clarified. To this end, the following technical solutions of the embodiments of the present application are proposed.

[0091] Figure 4 Schematic diagram of the state conversion method provided in the embodiment of the present application Figure 1,like Figure 4 As shown, the state conversion method includes the following steps:

[0092] Step 401: The primary node receives first indication information sent by the secondary node, where the first indication information is used to indicate that the service on the secondary node side is inactive.

[0093] The technical solution of the embodiment of the present application can be applied but not limited to a dual-connection architecture, such as a multi-connection architecture. In a dual-connection architecture or a multi-connection architecture, the set of cells covered by a master node (MN) is called a master cell group (MCG), and the set of cells covered by a secondary node (SN) is called an SCG. The MCG includes a primary cell (PCell) and at least one secondary cell (SCell). The SCG includes a primary secondary cell (PScell) and at least one secondary cell (SCell).

[0094] For the SCG on the secondary node side, the dormancy state is supported. In the embodiment of the present application, the SCG in the dormancy state is referred to as a dormancy SCG, the SCG in the non-dormancy state is referred to as a non-dormancy SCG, and the SCG in the activation state is referred to as an activation SCG. Optionally, the non-dormancy SCG and the activation SCG may refer to the same state.

[0095] In the embodiment of the present application, 1) if the secondary node does not receive downlink data from the core network on the SCG bearer, and does not receive uplink data from the terminal device, the secondary node sends the first indication information to the primary node; or, 2) if the secondary node does not receive downlink data from the core network on the SCG bearer, and receives one or more BSR reports of 0 from the terminal device for the SCG bearer, the secondary node sends the first indication information to the primary node. The first indication information is used to indicate that the service on the secondary node side is inactive.

[0096] Step 402: If the master node determines that no downlink data is forwarded to the slave node and / or no uplink data is sent from the slave node, the master node sends a first confirmation message to the slave node, and the first confirmation message is used to trigger the SCG to enter a sleep state.

[0097] In an optional implementation, after the primary node receives the first indication information sent by the secondary node, it starts a first timer; if before the first timer times out, the primary node has not received downlink data from the core network that needs to be forwarded to the secondary node and / or there is no uplink data sent from the secondary node, the primary node sends the first confirmation information to the secondary node.

[0098] In the embodiment of the present application, the primary node determines that no downlink data is forwarded to the secondary node and / or no uplink data is sent from the secondary node, including:

[0099] The master node determines that no downlink data is forwarded to the slave node on the offload bearer terminated by the master node; and / or,

[0100] The master node determines that the BSR report corresponding to the offload bearer terminated by the master node is 0.

[0101] For the secondary node, if the secondary node receives the first confirmation information sent by the primary node, it triggers the SCG to enter a sleep state.

[0102] In an optional implementation, the master node sends second indication information to the terminal device, and the second indication information is used to notify the terminal device SCG to enter a dormant state. Further, optionally, the second indication information is carried by RRC signaling or MAC CE or PDCCH on the master node side.

[0103] The technical solution of the embodiment of the present application is illustrated below with reference to specific examples.

[0104] Example 1

[0105] Reference Figure 5 , the state transition method of this example includes the following process:

[0106] 1. SN detects that the service is inactive.

[0107] Here, if the SN cannot receive downlink data from the CN on the SCG RLC bearer, and also cannot receive uplink data from the UE, or the BSR corresponding to the uplink SCG RLC bearer is reported as 0 (or the BSR is reported as 0 for several consecutive times), the SN notifies the MN that the service on the SN side is inactive (see step 2 below).

[0108] 2. SN notifies MN that the service on the SN side is inactive.

[0109] Here, the SN notifying the MN that the service on the SN side is inactive may also be replaced by the SN notifying the MN that the dormancy condition on the SN side is met (SN inform MN the dormancy condition is met).

[0110] Specifically, after MN receives the indication of inactive services on the SN side sent by SN, if MN determines that there is no downlink data on the split bearer terminated by MN that needs to be forwarded to SN, MN can decide to put SCG into a dormant state. Optionally, in this process, after MN receives the indication of inactive services on the SN side, it starts a first timer. If no downlink data on the split bear terminated by MN from CN needs to be forwarded to SN before the first timer times out, MN can decide to put SCG into a dormant state.

[0111] 3. MN notifies SN that SCG enters sleep state.

[0112] Here, MN notifying SN that SCG enters dormancy state can also be understood as MN sending first confirmation information to SN, where the first confirmation information is used to trigger SCG to enter dormancy state. It should be understood that the first confirmation information is used to confirm the dormancy decision.

[0113] Specifically, the MN notifies the SN SCG to enter the dormant state through Xn / X2 interface signaling.

[0114] 4. MN notifies UE that SCG enters sleep state.

[0115] Specifically, the MN notifies the UE SCG to enter the sleep state through RRC signaling on the MN side or MN MAC CE or MN PDCCH.

[0116] Figure 6 Schematic diagram of the state conversion method provided in the embodiment of the present application Figure 2 ,like Figure 6 As shown, the state conversion method includes the following steps:

[0117] Step 601: When the SCG is in a sleep state or an inactive state, if the master node determines that there is downlink data to be forwarded to the slave node or the master node receives a third notification message sent by the terminal device, and the third notification message is used to notify the master node to trigger the SCG to enter a non-sleep state, then the master node sends a first request message to the slave node, and the first request message is used to request the SCG to enter a non-sleep state or an active state.

[0118] In the embodiment of the present application, there are two application scenarios for triggering the SCG to enter a non-sleeping state or an activated state, which are described in detail below.

[0119] Scenario 1: The network triggers the SCG to enter a non-dormant state or an activated state

[0120] Here, the master node triggers the SCG to enter a non-sleeping state or an activated state.

[0121] When the SCG is in a sleep state or an inactive state, if the master node determines that there is downlink data to be forwarded to the slave node, the master node sends a first request message to the slave node, where the first request message is used to request the SCG to enter a non-sleep state or an active state.

[0122] Here, the master node determines that there is downlink data to be forwarded to the slave node, including: the master node determines that the downlink data reaches the offload bearer terminated by the master node, and / or determines that the SCG bearer needs to be used to transmit the downlink data.

[0123] In an optional implementation, the first request message carries the measurement result of the terminal device, and the measurement result of the terminal device includes at least one of the following: the measurement result of the SCG service cell, the measurement result of the SCG service frequency, and all measurement results of the terminal device. Further, optionally, the measurement result includes at least one of the following: RSRP measurement result, RSRQ measurement result, and SINR measurement result.

[0124] In an embodiment of the present application, the measurement result is used by the secondary node to determine whether to change the PSCell; the method also includes: the primary node receives a first notification message sent by the secondary node, and the first notification message is used to notify the primary node whether to change the PSCell. Further, optionally, when the first notification message notifies the primary node of the change of the PSCell, the first notification message carries the identification information of the changed PSCell. Here, the identification information of the PSCell includes at least one of the following: physical cell identifier (PCI), frequency point, and serving cell identifier. For example, the identification information of the PSCell is PCI plus frequency point information, or is a serving cell identifier (serving cell index)

[0125] In an optional implementation, the master node sends a second notification message to the terminal device, and the second notification message is used to notify the terminal device that the SCG enters a non-sleep state or an activated state. Furthermore, the second notification message is also used to notify the terminal device whether to change the PSCell. Here, optionally, in the case where the second notification message notifies the terminal device to change the PSCell, the second notification message carries identification information of the changed PSCell. Here, the identification information of the PSCell includes at least one of the following: PCI, frequency, and serving cell identifier. For example, the identification information of the PSCell is PCI plus frequency information, or is a serving cell identifier (serving cell index).

[0126] Scenario 2: The terminal device triggers the SCG to enter a non-dormant state or an activated state

[0127] When the SCG is in a sleep state or an inactive state, if the master node receives a third notification message sent by the terminal device, and the third notification message is used to notify the master node to trigger the SCG to enter a non-sleep state, the master node sends a first request message to the slave node, and the first request message is used to request the SCG to enter a non-sleep state or an active state.

[0128] In an embodiment of the present application, if the terminal device determines that there is uplink data to be sent to the secondary node, the terminal device sends a third notification message to the primary node, and the third notification message is used to notify the primary node to trigger the SCG to enter a non-sleep state or an activated state.

[0129] Here, the terminal device determines that there is uplink data to be sent to the secondary node, including: the terminal device determines that there is uplink data that needs to be transmitted on the SCG bearer.

[0130] In an optional implementation, the third notification message is carried by RRC signaling or MACCE on the master node side.

[0131] In an optional implementation, the third notification message includes N bearer identifiers, where N is an integer greater than or equal to 0, and the bearer identifier is used to indicate a DRB identifier of a bearer on which uplink data is sent.

[0132] In an optional implementation, the first request message carries the measurement result of the terminal device, and the measurement result of the terminal device includes at least one of the following: the measurement result of the SCG service cell, the measurement result of the SCG service frequency, and all measurement results of the terminal device. Further, optionally, the measurement result includes at least one of the following: RSRP measurement result, RSRQ measurement result, and SINR measurement result.

[0133] In an embodiment of the present application, the measurement result is used by the secondary node to determine whether to change the PSCell; the method also includes: the primary node receives a first notification message sent by the secondary node, and the first notification message is used to notify the primary node whether to change the PSCell. Further, optionally, when the first notification message notifies the primary node of the change of the PSCell, the first notification message carries the identification information of the changed PSCell. Here, the identification information of the PSCell includes at least one of the following: PCI, frequency, and serving cell identifier. For example, the identification information of the PSCell is PCI plus frequency information, or is a serving cell identifier (serving cell index).

[0134] In an optional implementation, the master node sends a second notification message to the terminal device, and the second notification message is used to notify the terminal device that the SCG enters a non-sleep state or an activated state. Furthermore, the second notification message is also used to notify the terminal device whether to change the PSCell. Here, optionally, in the case where the second notification message notifies the terminal device to change the PSCell, the second notification message carries identification information of the changed PSCell. Here, the identification information of the PSCell includes at least one of the following: PCI, frequency, and serving cell identifier. For example, the identification information of the PSCell is PCI plus frequency information, or is a serving cell identifier (serving cell index).

[0135] Figure 7 Flow chart 3 of the state conversion method provided in the embodiment of the present application, as shown in Figure 7 As shown, the state conversion method includes the following steps:

[0136] Step 701: When the SCG is in a dormant state or an inactive state, if the auxiliary node determines that downlink data has reached the auxiliary node, the auxiliary node triggers the SCG to enter a non-dormant state or an active state.

[0137] Here, the auxiliary node determines that downlink data has arrived at the auxiliary node, including: the auxiliary node determines that downlink data has arrived at the SCG bearer or the offload bearer terminated by the auxiliary node.

[0138] In an embodiment of the present application, the auxiliary node may obtain the measurement result of the terminal device in any of the following ways to determine whether to change the PSCell.

[0139] Method 1: Before the auxiliary node triggers the SCG to enter a non-sleep state or an activated state, the auxiliary node receives the measurement results of the terminal device sent by the master node, and the measurement results of the terminal device include at least one of the following: the measurement results of the SCG service cell, the measurement results of the SCG service frequency, and all measurement results of the terminal device.

[0140] Further, optionally, the measurement result includes at least one of the following: an RSRP measurement result, an RSRQ measurement result, and an SINR measurement result.

[0141] Method 2: The auxiliary node sends a second request message to the master node, and the second request message is used to request the SCG to enter an inactive state. Further, optionally, the second request message carries third indication information, and the third indication information is used to indicate the measurement result requested by the auxiliary node. The auxiliary node receives the measurement result of the terminal device sent by the master node, and the measurement result of the terminal device includes at least one of the following: the measurement result of the SCG service cell, the measurement result of the SCG service frequency, and all measurement results of the terminal device.

[0142] Further, optionally, the measurement result includes at least one of the following: an RSRP measurement result, an RSRQ measurement result, and an SINR measurement result.

[0143] In an embodiment of the present application, the measurement result is used by the secondary node to determine whether to change the PSCell; the method also includes: the primary node receives a first notification message sent by the secondary node, and the first notification message is used to notify the primary node whether to change the PSCell. Further, optionally, when the first notification message notifies the primary node of the change of the PSCell, the first notification message carries the identification information of the changed PSCell. Here, the identification information of the PSCell includes at least one of the following: PCI, frequency, and serving cell identifier. For example, the identification information of the PSCell is PCI plus frequency information, or is a serving cell identifier (serving cell index).

[0144] In an optional implementation, the master node sends a second notification message to the terminal device, and the second notification message is used to notify the terminal device that the SCG enters a non-sleep state or an activated state. Furthermore, the second notification message is also used to notify the terminal device whether to change the PSCell. Here, optionally, in the case where the second notification message notifies the terminal device to change the PSCell, the second notification message carries identification information of the changed PSCell. Here, the identification information of the PSCell includes at least one of the following: PCI, frequency, and serving cell identifier. For example, the identification information of the PSCell is PCI plus frequency information, or is a serving cell identifier (serving cell index).

[0145] The technical solution of the embodiment of the present application is illustrated below with reference to specific examples.

[0146] Example 2

[0147] Reference Figure 8 , the state transition method of this example includes the following process:

[0148] 1. DL data arrives via MN terminated splitbearer, and MN triggers SCG to enter non-dormant state.

[0149] It should be noted that the non-sleeping state in this example can be replaced by the activation state.

[0150] Specifically, if downlink data reaches the offload bearer terminated by the MN and / or needs to use the SCG RLC bearer, the MN triggers the SCG to enter a non-dormant state.

[0151] 2. MN sends a request message to SN for SCG to enter a non-dormant state.

[0152] Here, it can be understood that the request message is used to notify the SN to resume the state of the SCG (ie, MN informs SN to resume SCG from dormancy).

[0153] Optionally, the request message carries a UE measurement result, which includes at least one of the following: a measurement result of an SCG service cell, a measurement result of an SCG service frequency, and a measurement result of all UEs. The measurement result includes at least one of the following: an RSRP measurement result, an RSRQ measurement result, and an SINR measurement result.

[0154] 3. SN determines whether the PSCell needs to be changed based on the measurement results, and notifies MN whether the PSCell needs to be changed.

[0155] Here, if the PSCell is changed, the SN indicates the identification information of the new PScell ​​to the MN, and the identification information may be the PCI and frequency, or the serving cell index.

[0156] Then, the MN sends a confirmation message to the SN that the SCG has entered a non-dormant state.

[0157] 4. The MN sends an indication message to the UE that the SCG enters a non-dormant state.

[0158] Here, if the PSCell is changed, the MN indicates the identification information of the new PScell ​​to the UE, and the identification information may be the PCI and frequency, or the serving cell index.

[0159] Example 3

[0160] Reference Fig. 9 , the state transition method of this example includes the following process:

[0161] 1. When downlink data reaches the SCG bearer or the offload bearer terminated by the SN, the SN triggers the SCG to enter a non-dormant state.

[0162] It should be noted that the non-sleeping state in this example can be replaced by the activation state.

[0163] 2. Execute the following two steps:

[0164] Branch (a): Before step 1, if MN has forwarded the UE measurement results to SN, SN determines whether PSCell needs to be changed based on the measurement results, and SN notifies MN whether PSCell needs to be changed. Here, if PSCell is changed, SN indicates the identification information of the new PScell ​​to MN, and the identification information can be PCI and frequency, or serving cell identifier (servingcellindex). Among them, the measurement results include at least one of the following: measurement results of SCG serving cells, measurement results of SCG serving frequencies, and measurement results of all UEs. Among them, the measurement results include at least one of the following: RSRP measurement results, RSRQ measurement results, SINR measurement results. Then, proceed to step 5 below.

[0165] Branch (b): MN sends a request message to SN for SCG to enter a non-dormant state.

[0166] Optionally, the request message carries an indication of requesting a measurement result. Then proceed to step 3 below.

[0167] 3. The MN confirms the sleep decision and forwards the measurement results to the SN.

[0168] Here, the measurement results are used to assist the SN in confirming whether the original PSCell is valid or selecting a new PSCell (the SN determines whether the PSCell needs to be changed based on the measurement results). The measurement results include at least one of the following: the measurement results of the SCG service cell, the measurement results of the SCG service frequency, and the measurement results of all UEs. The measurement results include at least one of the following: RSRP measurement results, RSRQ measurement results, and SINR measurement results.

[0169] 4. The SN determines whether the PSCell needs to be changed based on the measurement results, and the SN notifies the MN whether the PSCell needs to be changed.

[0170] Here, if the PSCell is changed, the SN indicates the identification information of the new PScell ​​to the MN, and the identification information may be the PCI and frequency, or the serving cell index.

[0171] Then, the MN sends a confirmation message to the SN that the SCG has entered a non-dormant state.

[0172] 5. The MN sends an indication message to the UE that the SCG enters a non-dormant state.

[0173] Here, if the PSCell is changed, the MN indicates the identification information of the new PScell ​​to the UE, and the identification information may be the PCI and frequency, or the serving cell index.

[0174] Example 4

[0175] Reference Fig.10 , the state transition method of this example includes the following process:

[0176] 1. If the uplink data reaches the point where the SCG RLC bearer is required, the UE notifies the MN to trigger the SCG to enter a non-dormant state.

[0177] It should be noted that the non-sleeping state in this example can be replaced by the activation state.

[0178] Here, the UE may notify the MN through the MN RRC or the MN MAC CE to trigger the SCG to enter a non-dormant state.

[0179] 2. MN sends a request message to SN for SCG to enter a non-dormant state.

[0180] Here, it can be understood that the request message is used to notify the SN to resume the state of the SCG (ie, MN informs SN to resume SCG from dormancy).

[0181] Optionally, the request message carries a UE measurement result, which includes at least one of the following: a measurement result of an SCG service cell, a measurement result of an SCG service frequency, and a measurement result of all UEs. The measurement result includes at least one of the following: an RSRP measurement result, an RSRQ measurement result, and an SINR measurement result.

[0182] 3. SN determines whether the PSCell needs to be changed based on the measurement results, and notifies MN whether the PSCell needs to be changed.

[0183] Here, if the PSCell is changed, the SN indicates the identification information of the new PScell ​​to the MN, and the identification information may be the PCI and frequency, or the serving cell index.

[0184] Then, the MN sends a confirmation message to the SN that the SCG has entered a non-dormant state.

[0185] 4. The MN sends an indication message to the UE that the SCG enters a non-dormant state.

[0186] Here, if the PSCell is changed, the MN indicates the identification information of the new PScell ​​to the UE, and the identification information may be the PCI and frequency, or the serving cell index.

[0187] Fig.11 Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 1 , applied to the master node, such as Fig.11 As shown, the state conversion device includes:

[0188] A receiving unit 1101 is configured to receive first indication information sent by a secondary node, where the first indication information is used to indicate that a service on the secondary node side is inactive;

[0189] A determining unit 1102, configured to determine that no downlink data is forwarded to the secondary node and / or no uplink data is sent from the secondary node;

[0190] The sending unit 1103 is used to send first confirmation information to the secondary node, where the first confirmation information is used to trigger the SCG to enter a sleep state.

[0191] In an optional implementation, after the receiving unit 1101 receives the first indication information sent by the secondary node, it starts a first timer; if before the first timer expires, no downlink data that needs to be forwarded to the secondary node is received from the core network and / or there is no uplink data sent from the secondary node, the sending unit 1103 sends the first confirmation information to the secondary node.

[0192] In an optional implementation, the sending unit 1103 is further used to send second indication information to the terminal device, where the second indication information is used to notify the terminal device SCG to enter a sleep state.

[0193] In an optional implementation manner, the second indication information is carried via RRC signaling, MACCE, or PDCCH on the master node side.

[0194] In an optional implementation, the determining unit 1102 is configured to determine that no downlink data is forwarded to the secondary node on the offload bearer terminated by the primary node; and / or determine that a BSR report corresponding to the offload bearer terminated by the primary node is 0.

[0195] Those skilled in the art should understand that the relevant description of the above-mentioned state conversion device in the embodiment of the present application can be understood by referring to the relevant description of the state conversion method in the embodiment of the present application.

[0196] Fig.12Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 2 , applied to auxiliary nodes, such as Fig.12 As shown, the state conversion device includes:

[0197] A sending unit 1201 is configured to send first indication information to the primary node, where the first indication information is used to indicate that the service on the secondary node side is inactive;

[0198] The receiving unit 1202 is used to trigger the SCG to enter a sleep state if the first confirmation information sent by the master node is received.

[0199] In an optional embodiment, the sending unit 1201 is used to send the first indication information to the master node if the secondary node does not receive downlink data from the core network on the SCG bearer and does not receive uplink data from the terminal device; or, if the secondary node does not receive downlink data from the core network on the SCG bearer and receives one or more BSR reports of 0 from the terminal device for the SCG bearer, then the first indication information is sent to the master node.

[0200] Those skilled in the art should understand that the relevant description of the above-mentioned state conversion device in the embodiment of the present application can be understood by referring to the relevant description of the state conversion method in the embodiment of the present application.

[0201] Fig.13 The structural composition diagram of the state conversion device provided in the embodiment of the present application is shown in Figure 3, which is applied to the master node, such as Fig.13 As shown, the state conversion device includes:

[0202] Sending unit 1301 is used to send a first request message to the secondary node when the SCG is in a sleep state or a non-activated state. The first request message is used to request the SCG to enter a non-sleep state or an activated state. If the primary node determines that there is downlink data to be forwarded to the secondary node or the primary node receives a third notification message sent by a terminal device, and the third notification message is used to notify the primary node to trigger the SCG to enter a non-sleep state.

[0203] In an optional implementation manner, the first request message carries a measurement result of the terminal device, and the measurement result of the terminal device includes at least one of the following:

[0204] The measurement results of the SCG service cell, the measurement results of the SCG service frequency, and all the measurement results of the terminal equipment.

[0205] In an optional implementation, the measurement result includes at least one of the following: an RSRP measurement result, an RSRQ measurement result, and an SINR measurement result.

[0206] In an optional implementation manner, the measurement result is used by the secondary node to determine whether to change the PSCell; the device further includes:

[0207] The receiving unit 1302 is used to receive a first notification message sent by the secondary node, where the first notification message is used to notify the primary node whether to change the PSCell.

[0208] In an optional implementation, when the first notification message notifies the master node of a change in the PSCell, the first notification message carries identification information of the changed PSCell.

[0209] In an optional implementation, the sending unit 1301 is further used to send a second notification message to the terminal device, where the second notification message is used to notify the terminal device that the SCG enters a non-sleep state or an activated state.

[0210] In an optional implementation, the second notification message is also used to notify the terminal device whether to change the PSCell.

[0211] In an optional implementation, when the second notification message notifies the terminal device of a change in PSCell, the second notification message carries identification information of the changed PSCell.

[0212] In an optional implementation manner, the primary node determines that there is downlink data to be forwarded to the secondary node, including:

[0213] The master node determines that the downlink data reaches the offload bearer terminated by the master node, and / or determines that the SCG bearer needs to be used to transmit the downlink data.

[0214] In an optional implementation manner, the identification information of the PSCell includes at least one of the following: PCI, frequency, and serving cell identifier.

[0215] Those skilled in the art should understand that the relevant description of the above-mentioned state conversion device in the embodiment of the present application can be understood by referring to the relevant description of the state conversion method in the embodiment of the present application.

[0216] Fig.14 Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 4 , applied to auxiliary nodes, such as Fig.14 As shown, the state conversion device includes:

[0217] The trigger unit 1401 is used to trigger the SCG to enter a non-sleeping state or an activated state when it is determined that downlink data has reached the auxiliary node when the SCG is in a dormant state or a non-activated state.

[0218] In an optional embodiment, the device further comprises:

[0219] The receiving unit 1402 is configured to receive a measurement result of a terminal device sent by the master node before the triggering unit triggers the SCG to enter a non-sleeping state or an activated state, where the measurement result of the terminal device includes at least one of the following:

[0220] The measurement results of the SCG service cell, the measurement results of the SCG service frequency, and all the measurement results of the terminal equipment.

[0221] In an optional embodiment, the device further comprises:

[0222] The sending unit 1403 is used to send a second request message to the master node, where the second request message is used to request the SCG to enter an inactive state.

[0223] In an optional implementation manner, the second request message carries third indication information, and the third indication information is used to indicate the measurement result requested by the secondary node.

[0224] In an optional embodiment, the device further comprises:

[0225] The receiving unit 1402 is configured to receive a measurement result of a terminal device sent by the master node, where the measurement result of the terminal device includes at least one of the following:

[0226] The measurement results of the SCG service cell, the measurement results of the SCG service frequency, and all the measurement results of the terminal equipment.

[0227] In an optional implementation, the measurement result includes at least one of the following: an RSRP measurement result, an RSRQ measurement result, and an SINR measurement result.

[0228] In an optional implementation manner, the measurement result is used by the secondary node to determine whether to change the PSCell; the device further includes:

[0229] The sending unit 1403 is used to send a first notification message to the master node, where the first notification message is used to notify the master node whether to change the PSCell.

[0230] In an optional implementation, when the first notification message notifies the master node of a change in the PSCell, the first notification message carries identification information of the changed PSCell.

[0231] In an optional embodiment, the device further comprises:

[0232] The sending unit 1403 is used to send a second notification message to the terminal device, where the second notification message is used to notify the terminal device that the SCG enters a non-sleep state or an activated state.

[0233] In an optional implementation, the second notification message is also used to notify the terminal device whether to change the PSCell.

[0234] In an optional implementation, when the second notification message notifies the terminal device of a change in PSCell, the second notification message carries identification information of the changed PSCell.

[0235] In an optional embodiment, the device further comprises:

[0236] The determination unit (not shown in the figure) is used to determine whether downlink data arrives at the SCG bearer or the offload bearer terminated by the auxiliary node.

[0237] In an optional implementation manner, the identification information of the PSCell includes at least one of the following: PCI, frequency, and serving cell identifier.

[0238] Those skilled in the art should understand that the relevant description of the above-mentioned state conversion device in the embodiment of the present application can be understood by referring to the relevant description of the state conversion method in the embodiment of the present application.

[0239] Fig.15 Schematic diagram of the structure of the state conversion device provided in the embodiment of the present application Figure 5 , applied to terminal devices such as Fig.15 As shown, the state conversion device includes:

[0240] A determining unit 1501, configured to determine that there is uplink data to be sent to the secondary node;

[0241] The sending unit 1502 is used to send a third notification message to the master node, where the third notification message is used to notify the master node to trigger the SCG to enter a non-sleep state or an activated state.

[0242] In an optional implementation, the third notification message is carried by RRC signaling or MACCE on the master node side.

[0243] In an optional implementation, the third notification message includes N bearer identifiers, where N is an integer greater than or equal to 0, and the bearer identifier is used to indicate a DRB identifier of a bearer on which uplink data is sent.

[0244] In an optional implementation, the determining unit 1501 is used to determine whether there is uplink data that needs to be transmitted on the SCG bearer.

[0245] Those skilled in the art should understand that the relevant description of the above-mentioned state conversion device in the embodiment of the present application can be understood by referring to the relevant description of the state conversion method in the embodiment of the present application.

[0246] Fig.16 1600 is a schematic structural diagram of a communication device 1600 provided in an embodiment of the present application. The communication device may be a terminal device or a network device. Fig.16 The communication device 1600 shown includes a processor 1610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0247] Alternatively, if Fig.16 As shown, the communication device 1600 may further include a memory 1620. The processor 1610 may call and run a computer program from the memory 1620 to implement the method in the embodiment of the present application.

[0248] The memory 1620 may be a separate device independent of the processor 1610 , or may be integrated into the processor 1610 .

[0249] Alternatively, if Fig.16 As shown, the communication device 1600 may further include a transceiver 1630, and the processor 1610 may control the transceiver 1630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0250] The transceiver 1630 may include a transmitter and a receiver. The transceiver 1630 may further include an antenna, and the number of antennas may be one or more.

[0251] Optionally, the communication device 1600 may specifically be a network device of an embodiment of the present application, and the communication device 1600 may implement corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0252] Optionally, the communication device 1600 may specifically be a mobile terminal / terminal device of an embodiment of the present application, and the communication device 1600 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0253] Fig.17 It is a schematic structural diagram of the chip of an embodiment of the present application. Fig.17 The chip 1700 shown includes a processor 1710, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0254] Alternatively, if Fig.17 As shown, the chip 1700 may further include a memory 1720. The processor 1710 may call and run a computer program from the memory 1720 to implement the method in the embodiment of the present application.

[0255] The memory 1720 may be a separate device independent of the processor 1710 , or may be integrated into the processor 1710 .

[0256] Optionally, the chip 1700 may further include an input interface 1730. The processor 1710 may control the input interface 1730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0257] Optionally, the chip 1700 may further include an output interface 1740. The processor 1710 may control the output interface 1740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0258] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0259] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0260] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0261] Fig.18 1 is a schematic block diagram of a communication system 1800 provided in an embodiment of the present application. Fig.18 As shown, the communication system 1800 includes a terminal device 1810 and a network device 1820 .

[0262] Among them, the terminal device 1810 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1820 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0263] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0264] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0265] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0266] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0267] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0268] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0269] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0270] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0271] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0272] The embodiment of the present application also provides a computer program.

[0273] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0274] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0275] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0276] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0277] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0278] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0279] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0280] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0281] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A state conversion method, the method comprising: When the SCG is in a dormant state or an inactive state, if the master node determines that there is downlink data to be forwarded to the slave node, the master node sends a first request message to the slave node, where the first request message is used to request the SCG to enter a non-dormant state or an active state; When the SCG is in a sleep state or an inactive state, if the master node receives a third notification message sent by the terminal device, and the third notification message is sent to the master node when the terminal device determines that there is uplink data to be sent to the slave node, and is used to notify the master node to trigger the SCG to enter a non-sleep state or an active state, the master node sends the first request message to the slave node.

2. The method according to claim 1, wherein: The method further comprises: The master node sends a second notification message to the terminal device, where the second notification message is used to notify the terminal device that the SCG enters a non-sleep state or an activated state.

3. The method according to claim 1 or 2, wherein: The master node determines that there is downlink data to be forwarded to the slave node, including: The master node determines that the downlink data reaches the offload bearer terminated by the master node, and / or determines that the SCG bearer needs to be used to transmit the downlink data.

4. A state conversion method, the method comprising: If the terminal device determines that there is uplink data to be sent to the secondary node, the terminal device sends a third notification message to the primary node, and the third notification message is used to notify the primary node to trigger the SCG to enter a non-sleep state or an activated state.

5. The method according to claim 4, wherein: The third notification message is carried by RRC signaling or MAC CE on the master node side.

6. A state conversion device, comprising: A sending unit, configured to send a first request message to the secondary node when the SCG is in a dormant state or an inactive state, if the primary node determines that there is downlink data to be forwarded to the secondary node, wherein the first request message is used to request the SCG to enter a non-dormant state or an active state; Among them, the sending unit is also used for, when the SCG is in a sleep state or an inactive state, if the master node receives a third notification message sent by the terminal device, and the third notification message is sent to the master node when the terminal device determines that there is uplink data to be sent to the slave node, and is used to notify the master node to trigger the SCG to enter a non-sleep state or an active state, then the master node sends the first request message to the slave node.

7. A state conversion device, comprising: A determination unit, used to determine that there is uplink data to be sent to the auxiliary node; A sending unit is used to send a third notification message to the master node, where the third notification message is used to notify the master node to trigger the SCG to enter a non-sleep state or an activated state.

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