Communication method, terminal equipment and network equipment

Abstract

The invention discloses a communication method, terminal equipment and network equipment, and belongs to the field of communication. According to the communication method provided by the embodiment of the invention, user equipment (UE) communicating with a core network supports dual connectivity of a control plane and a user plane, and the method comprises the following steps: communicating with the control plane of the core network through a control plane base station; and communicating with the user plane of the core network through the user plane base station.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of communications, and in particular to a communication method, terminal equipment and network equipment. Background Art

[0002] With the development of Beyond 5G (B5G) and 6G (6G), the scenarios of wireless mobile communication systems are increasing, the networking requirements are becoming more and more diverse, and the network is evolving faster and faster, which puts forward more stringent requirements on communication rate, latency, reliability, etc. For example, Enhanced Mobile Broadband (eMBB) has extremely high bandwidth requirements, Ultra-Reliable Low-Latency Communications (URLLC) requires extreme data processing on the user plane, and Massive Machine Type Communication (mMTC) requires a large amount of signaling interaction.

[0003] However, currently on the wireless side, the control plane and the user plane, the uplink and downlink of the air interface are not separated, and the corresponding network indicators cannot be achieved. Summary of the invention

[0004] The embodiment of the present application provides a communication method, which can solve the problem that the control plane and the user plane are not separated and the corresponding network indicators cannot be achieved.

[0005] In a first aspect, a communication method is provided, in which a user equipment UE communicating with a core network supports dual connection of a control plane and a user plane, the method comprising: communicating with the control plane of the core network via a control plane base station; and communicating with the user plane of the core network via a user plane base station.

[0006] In a second aspect, a communication device is provided, which includes: a first communication module, used to communicate with a control plane of a core network through a control plane base station; and a second communication module, used to communicate with a user plane of the core network through a user plane base station.

[0007] In a third aspect, a terminal device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the communication method described in the first aspect.

[0008] In a fourth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the communication method as described in the first aspect, and the communication interface is used to communicate with an external device.

[0009] In a fifth aspect, a network device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the communication method described in the first aspect.

[0010] In a sixth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the communication method as described in the first aspect, and the communication interface is used to communicate with an external device.

[0011] In a seventh aspect, a readable storage medium is provided, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the communication method described in the first aspect are implemented.

[0012] In an eighth aspect, a computer program product is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the communication method described in the first aspect.

[0013] In a ninth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the communication method as described in the first aspect.

[0014] The communication method provided in the embodiment of the present invention supports dual connection of the control plane and the user plane through the user equipment UE communicating with the core network, communicates with the control plane of the core network through the control plane base station; and communicates with the user plane of the core network through the user plane base station, thereby separating the control plane and the user plane and achieving corresponding network indicators. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a wireless communication system to which an embodiment of the present application can be applied is shown.

[0016] Figure 2 is a schematic flow chart of a communication method according to an embodiment of the present invention;

[0017] Figure 3 is a schematic flow chart of a communication method according to another embodiment of the present invention;

[0018] Figure 4a-4c is a schematic diagram of a multi-connection architecture according to another embodiment of the present invention;

[0019] Figure 5 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

[0020] Figure 6 is a schematic diagram of the structure of a communication device according to an embodiment of the present invention;

[0021] Figure 7 is a schematic diagram of the structure of a network device according to another embodiment of the present invention;

[0022] Figure 8 is a schematic structural diagram of a terminal device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0024] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0025] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0026] Figure 1A schematic diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11, a network side device 12 and a core network device 13. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a smart watch, a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (Vehicle User Equipment, VUE), a pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal side devices, and the wearable device includes: a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved Node B (evolved Node B, eNB), a home Node B, a home evolved Node B, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0027] The communication method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0028] like Figure 2 As shown, an embodiment of the present invention provides a communication method, which can be executed by a terminal device and / or a network device. In other words, the method can be executed by software or hardware installed in the terminal device and / or the network device. The method includes the following steps:

[0029] S210: Communicate with the control plane of the core network through the control plane base station.

[0030] According to the functions carried by the base station, it can be divided into base stations (base stations that carry both control plane functions and user plane functions), control plane base stations and user plane base stations. The control plane base station is used to represent a base station that only carries the control plane function, and may contain only a control plane cell or only a control plane carrier. Control plane functions may include carrying signaling messages or control messages. The control plane of the core network is used for user connection management, Quality of Service (QoS) policy definition, user authentication, etc., for example, including Access and Mobility Management Function (AMF) and control plane core (core-Control Plane, core-CP). The control plane base station is connected to the AMF or core-CP for communication.

[0031] S220: Communicate with the user plane of the core network through the user plane base station.

[0032] The user plane base station is used to represent a base station that only carries user plane functions, and may contain only user plane cells or only user plane carriers. User plane functions may include forwarding user data traffic. The user plane of the core network is used for routing and forwarding data packets, data and service identification, action and policy execution, etc., for example, including user plane functions (User Plane Function, UPF) and user plane core (core-User Plane, core-UP). The user plane base station is connected to the UPF or core-UP for communication.

[0033] User Equipment (UE) communicating with the core network supports dual connectivity of the control plane and the user plane. In other words, the UE can maintain a connection with the user plane while being connected to the control plane; and / or the UE can maintain a connection with the control plane while being connected to the user plane. The UE supports separation of the control plane and the user plane, for example, the UE can separate the control plane logic from the user plane logic. In addition, the UE can report capabilities, for example, the UE's modem can report uplink decoupling capabilities and downlink decoupling capabilities to the network, and the network enables the Control and User Plane Separated (CUPS) function based on the capabilities.

[0034] The communication method provided by the embodiment of the present invention supports dual connection of the control plane and the user plane through the user equipment UE that communicates with the core network, communicates with the control plane of the core network through the control plane base station; communicates with the user plane of the core network through the user plane base station. The control plane and the user plane communicate separately to achieve separation, which can avoid mutual constraints between the control plane and the user plane at the resource level and the networking level, provide convenience for the separate evolution of the control plane and the user plane, and enable the control plane and the user plane to achieve corresponding network indicators.

[0035] In one possible implementation, the carrier or cell of the control plane base station is configured with at least one of the following channels: Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH), Physical Uplink Control Channel (PUCCH), and Sounding Reference Signal (SRS).

[0036] The control plane base station needs to support both uplink and downlink. Therefore, taking the carrier as an example, the carrier of the control plane base station includes both uplink carrier and downlink carrier. A carrier that supports both uplink and downlink can be used as the carrier of the control plane base station, or a carrier that only supports downlink and a carrier that only supports uplink can be combined as the carrier of the control plane base station.

[0037] The carrier or cell supporting the control plane needs a random access process, so it needs to be configured with channels. The downlink channel configuration includes PSS, SSS, PBCH, PDCCH, PDSCH, and the uplink channel configuration includes PRACH, PUSCH, PUCCH, SRS. PRACH is used as a synchronization channel.

[0038] Through the above control plane base station channel configuration, the separation of the control plane uplink and downlink can be achieved.

[0039] In a possible implementation manner, the user plane base station includes: an uplink user plane base station, which only supports an uplink carrier; or a downlink user plane base station, which only supports a downlink carrier.

[0040] User plane base stations do not need to support both uplink and downlink at the same time. Therefore, user plane base stations can be divided into uplink user plane base stations and downlink user plane base stations according to the uplink and downlink of the carrier. Uplink user plane base stations only support uplink, and the carriers they contain are uplink carriers; downlink user plane base stations only support downlink, and the carriers they contain are downlink carriers.

[0041] By differentiating the user plane base station into an uplink user plane base station and a downlink user plane base station according to the supported carrier type, a basis can be provided for performing different configurations on different user plane base stations.

[0042] In a possible implementation, downlink user plane base stations are classified according to functional requirements of the downlink user plane base stations, which include at least two of a downlink synchronization function, an independent scheduling function, an independent deployment function, and a downlink hybrid automatic repeat request (HARQ) function.

[0043] Specifically, the downlink user plane base station includes at least one of the following:

[0044] A first downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization, independent scheduling, independent deployment and downlink HARQ;

[0045] A second downlink user plane base station, wherein the second downlink user plane base station supports downlink synchronization, independent scheduling and independent deployment;

[0046] A third downlink user plane base station, wherein the third downlink user plane base station supports independent scheduling, independent deployment and downlink HARQ;

[0047] a fourth downlink user plane base station, wherein the fourth downlink user plane base station supports independent scheduling and independent deployment;

[0048] A fifth downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization, independent deployment and downlink HARQ;

[0049] A sixth downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization and independent deployment;

[0050] A seventh downlink user plane base station, wherein the first downlink user plane base station supports independent deployment and downlink HARQ;

[0051] An eighth downlink user plane base station, wherein the eighth downlink user plane base station supports independent deployment.

[0052] In a possible implementation, corresponding to each type of downlink user plane base station, the channels that need to be configured are listed respectively, including:

[0053] The first downlink user plane base station configures PSS, SSS, DMRS, PDCCH, PDSCH, and PUCCH;

[0054] The second downlink user plane base station configures PSS, SSS, DMRS, PDCCH, and PDSCH;

[0055] The third downlink user plane base station configures DMRS, PDCCH, PDSCH, and PUCCH;

[0056] The fourth downlink user plane base station configures DMRS, PDCCH, and PDSCH;

[0057] The fifth downlink user plane base station configures PSS, SSS, DMRS, PDCCH, PDSCH, and PUCCH;

[0058] The sixth downlink user plane base station configures PSS, SSS, DMRS, PDCCH, and PDSCH;

[0059] The seventh downlink user plane base station configures DMRS, PDCCH, PDSCH, and PUCCH;

[0060] The eighth downlink user plane base station configures DMRS, PDCCH, and PDSCH.

[0061] By classifying downlink user plane base stations and providing channel configuration solutions for each type of downlink user plane base stations, each type of downlink user plane base station can perform effective downlink data transmission.

[0062] In a possible implementation manner, the uplink user plane base station includes at least one of the following: a first uplink user plane base station, a first downlink carrier is synchronized with a first uplink carrier of the first uplink user plane base station, and the first uplink user plane base station is not configured with PRACH; a second uplink user plane base station, and the second uplink user plane base station is configured with PRACH.

[0063] The first uplink carrier of the first uplink user plane base station maintains a synchronization relationship with the first downlink carrier. The first uplink user plane base station is suitable for co-location deployment with a base station, a control plane base station, etc. Optionally, the first uplink user plane base station is also called an uplink user plane base station U1.

[0064] No synchronization relationship is established between the uplink carrier and the downlink carrier of the second uplink user plane base station. Optionally, the second uplink user plane base station is also referred to as an uplink user plane base station U2.

[0065] According to whether the uplink carrier of the uplink user plane base station has established a synchronization relationship with the downlink carrier, the uplink user plane base station is distinguished, so as to configure a channel for uplink synchronization for the uplink user plane base station in need.

[0066] In a possible implementation manner, when the user plane base station only supports an uplink carrier, the user plane base station configures an SRS, a DMRS, and a PUSCH.

[0067] Optionally, since the first uplink carrier of the first uplink user plane base station U1 has a synchronization relationship, it is not necessary to configure a channel for uplink synchronization, such as a PRACH channel, for the first uplink user plane base station. The channels configured for the first uplink user plane base station U1 include SRS, DMRS, and PUSCH. Since the uplink carrier part of the second uplink user plane base station U2 has a synchronization relationship, it is necessary to configure a channel for uplink synchronization, such as a PRACH channel, for the second uplink user plane base station U2. The channels configured for the second uplink user plane base station U include PRACH, SRS, DMRS, and PUSCH.

[0068] Optionally, for the synchronization situation, for the carrier or cell of the uplink user plane base station, PDCCH, PDSCH, PUSCH, PUCCH and SRS need to be configured.

[0069] Through the above scheme, an effective channel configuration scheme can be provided for the uplink user plane base station.

[0070] Optionally, the real-time Scheduling Request (SR) and Buffer Status Report (BSR) can be reported by the control carrier, and the service carrier can be scheduled through another carrier. The two can cooperate seamlessly in the scheduling sequence. For example, 0MS interruption switching can be achieved to achieve low latency for uplink data transmission. Optionally, the control carrier is only used to report QoS measurements about the air interface, such as downlink latency, reliability, and rate, to avoid affecting the allocation of resources of the already very tight service carrier. In addition, through parallel multi-connection of multiple service carriers, zero latency in switching can be achieved.

[0071] The communication method provided by the embodiment of the present invention can realize the separation of uplink and downlink of the base station and the separation of uplink and downlink of the air interface at the carrier level. Combined with the network coverage and the large-scale and small-scale wireless transmission characteristics of radio waves in different frequency bands, it can focus more on resources and functions, and realize higher requirements for network downlink QoS and network uplink QoS.

[0072] Figure 3 A schematic flow chart of a communication method according to another embodiment of the present invention is shown. The method comprises the following steps:

[0073] S311: Establish a connection between the UE and a control cell (Control Plane cell, CP cell) of the control plane base station.

[0074] The UE initiates an access request on the CP cell, and the access request is used to request access to the CP cell. According to the access request, a connection between the UE and the CP cell is established and maintained.

[0075] Optionally, the CP cell is connected to the AMF or core-CP of the core network control plane.

[0076] S312: Perform radio resource control (RRC) configuration through the CP cell.

[0077] S313: Establish a communication connection between the UE and a control cell (CP cell) of the control plane base station.

[0078] The RRC configuration may be an RRC reset, which is used to indicate the communication between the UE and the CP cell. According to the RRC configuration, a communication connection is established between the UE and the control cell CP cell of the control plane base station.

[0079] S320: Establish a communication connection between the UE and a user plane cell (User Plane cell, UP cell) of the user plane base station.

[0080] The RRC configuration is also used to instruct the UE to make a user plane connection. The UP cell is a target cell that needs to be connected for user plane data transmission, and is connected to the UPF or core-UP of the core network. According to the RRC configuration, a communication connection is established between the UE and the UP cell of the user plane base station.

[0081] In a possible implementation, step S313 includes scheduling the UE to perform uplink data transmission on a carrier of a third base station through the PDCCH of the CP cell, wherein the uplink carrier of the CP cell corresponds to the third base station, and the third base station is one of the uplink user plane base stations; scheduling the UE to perform PRACH with a fourth base station through the PDCCH of the UP cell, and performing uplink data transmission on the carrier of the fourth base station, wherein the fourth base station is a base station among the uplink user plane base stations except the third base station.

[0082] The CP cell can schedule the UE to perform uplink data transmission on the designated carrier (i.e., the carrier of the third base station) through its configured PDCCH. The CP cell can also perform cross-carrier scheduling through its configured PDCCH, so that the UE can perform uplink data transmission on a carrier other than the designated carrier (i.e., the carrier of the fourth base station). When performing cross-carrier scheduling, the UE needs to perform PRACH synchronization first, and then connect the uplink data to perform uplink data transmission.

[0083] In a possible implementation, step S320 includes scheduling the UE to perform downlink data transmission on the PDSCH of the first base station through the PDCCH of the UP cell, wherein the downlink carrier of the UP cell corresponds to the first base station, and the first base station is one of the downlink user plane base stations; scheduling the UE to perform downlink data transmission on the PDSCH of the second base station through the PDCCH of the UP cell, wherein the second base station is a base station among the downlink user plane base stations except the first base station.

[0084] Assume that the uplink carrier and downlink carrier of the UP cell are separated, the downlink carrier C1 category is D1, the downlink carrier C2 category is D5, the uplink carrier C3 category is U1, and the uplink carrier C4 category is U3. The UP cell can schedule the UE's PDSCH on D1 for downlink data transmission through its own PDCCH; the UP cell can also schedule the PDSCH of D4 for downlink data transmission through the carrier of the CP cell through cross-carrier scheduling.

[0085] Since the UE can maintain multiple connections of the control plane and the user plane at the same time, the user plane can be freely scheduled and changed through the control plane in a concurrent multi-connection architecture in which the control plane and the user plane are separated.

[0086] According to the method of the embodiment of the present application, the separation of the user plane and the control plane can be achieved at the cell level.

[0087] Figure 4a-4c A diagram of a radio access network (RAN) networking architecture with separation of the control plane and the user plane is shown. The RAN networking architecture involves separation of the control plane and the user plane at the carrier or cell level, including an end-to-end control plane and user plane multi-connection architecture 410, a CUPS multi-connection architecture combined with wireless coverage 420, and a 6G-oriented control plane and user plane separation networking architecture 430.

[0088] Through the networking architecture with the control plane and the user plane separated as shown in the figure, the flexibility of the networking can be improved, and the independent evolution of the control plane and the user plane can be promoted. Furthermore, after the control plane and the user plane are separated, the uplink and downlink at the carrier level will also be easier.

[0089] It should be noted that the communication method provided in the embodiment of the present application can be executed by a communication device or a control module in the device for executing the loading method. In the embodiment of the present application, the communication method provided in the embodiment of the present application is described by taking the communication device executing the loading communication method as an example.

[0090] Figure 5 is a schematic diagram of the structure of a communication device according to an embodiment of the present invention. Figure 5 As shown, the communication device 500 includes: a first communication module 501 and a second communication module 502 .

[0091] The first communication module 501 is used to communicate with the control plane of the core network through the control plane base station; the second communication module 502 is used to communicate with the user plane of the core network through the user plane base station.

[0092] In one possible implementation, the carrier or cell of the control plane base station is configured with at least one of the following channels: primary synchronization signal PSS, secondary synchronization signal SSS, physical broadcast channel PBCH, physical downlink control channel PDCCH, physical downlink shared channel PDSCH, physical random access channel PRACH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, and sounding reference signal SRS.

[0093] In a possible implementation manner, the user plane base station includes: an uplink user plane base station, which only supports an uplink carrier; or a downlink user plane base station, which only supports a downlink carrier.

[0094] In a possible implementation manner, the downlink user plane base station includes at least one of the following:

[0095] A first downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization, independent scheduling, independent deployment and downlink hybrid automatic repeat request HARQ;

[0096] A second downlink user plane base station, wherein the second downlink user plane base station supports downlink synchronization, independent scheduling and independent deployment;

[0097] A third downlink user plane base station, wherein the third downlink user plane base station supports independent scheduling, independent deployment and downlink hybrid automatic repeat request HARQ;

[0098] a fourth downlink user plane base station, wherein the fourth downlink user plane base station supports independent scheduling and independent deployment;

[0099] A fifth downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization, independent deployment and downlink hybrid automatic repeat request HARQ;

[0100] A sixth downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization and independent deployment;

[0101] A seventh downlink user plane base station, wherein the first downlink user plane base station supports independent deployment and downlink hybrid automatic repeat request HARQ;

[0102] An eighth downlink user plane base station, wherein the eighth downlink user plane base station supports independent deployment.

[0103] In a possible implementation manner, the first downlink user plane base station configures PSS, SSS, DMRS, PDCCH, PDSCH, and PUCCH;

[0104] The second downlink user plane base station configures PSS, SSS, DMRS, PDCCH, and PDSCH;

[0105] The third downlink user plane base station configures DMRS, PDCCH, PDSCH, and PUCCH;

[0106] The fourth downlink user plane base station configures DMRS, PDCCH, and PDSCH;

[0107] The fifth downlink user plane base station configures PSS, SSS, DMRS, PDCCH, PDSCH, and PUCCH;

[0108] The sixth downlink user plane base station configures PSS, SSS, DMRS, PDCCH, and PDSCH;

[0109] The seventh downlink user plane base station configures DMRS, PDCCH, PDSCH, and PUCCH;

[0110] The eighth downlink user plane base station configures DMRS, PDCCH, and PDSCH.

[0111] In a possible implementation manner, the uplink user plane base station includes at least one of the following: a first uplink user plane base station, a first downlink carrier is synchronized with a first uplink carrier of the first uplink user plane base station, and the first uplink user plane base station is not configured with PRACH; a second uplink user plane base station, and the second uplink user plane base station is configured with PRACH.

[0112] In a possible implementation manner, when the user plane base station only supports an uplink carrier, the user plane base station configures an SRS, a DMRS, and a PUSCH.

[0113] In a possible implementation, the first communication module 501 is used to establish a connection between the UE and the CP cell according to an access request initiated by the user equipment UE on the control cell CP cell of the control plane base station; perform radio resource control RRC configuration through the CP cell; and establish a communication connection between the UE and the control cell CP cell of the control plane base station according to the RRC configuration.

[0114] In a possible implementation manner, the second communication module 502 is used to establish a communication connection between the UE and a user plane cell UP cell of the user plane base station according to the RRC configuration.

[0115] In a possible implementation manner, the first communication module 501 is used to schedule the UE to perform uplink data transmission on a carrier of a third base station through a PDCCH of the CP cell, wherein the uplink carrier of the CP cell corresponds to the third base station, and the third base station is one of the uplink user plane base stations;

[0116] The UE is scheduled to perform PRACH with a fourth base station through the PDCCH of the UP cell, and uplink data transmission is performed on a carrier of the fourth base station, wherein the fourth base station is a base station among the uplink user plane base stations except the third base station.

[0117] In a possible implementation, the second communication module 502 is used to schedule the UE to perform downlink data transmission on the PDSCH of the first base station through the PDCCH of the UP cell, wherein the downlink carrier of the UP cell corresponds to the first base station, and the first base station is one of the downlink user plane base stations; and schedule the UE to perform downlink data transmission on the PDSCH of the second base station through the PDCCH of the UP cell, wherein the second base station is a base station among the downlink user plane base stations except the first base station.

[0118] The communication device in the embodiment of the present application can be a device, a device or electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or electronic device can be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device can be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0119] The communication device 500 according to the embodiment of the present invention can refer to the corresponding Figure 2-4c The method flow of the embodiment, and the various units / modules in the device 500 and the above-mentioned other operations and / or functions are respectively for implementing Figure 2-4c The corresponding processes in the method of the embodiment can achieve the same or equivalent technical effects, and for the sake of brevity, they are not repeated here.

[0120] Optional, such as Figure 6 As shown, the embodiment of the present application also provides a communication device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction is executed by the processor 601 to implement each process of the above communication method embodiment, and can achieve the same technical effect. When the communication device 600 is a network side device, the program or instruction is executed by the processor 601 to implement each process of the above communication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0121] The embodiment of the present application also provides a network side device, including a processor and a communication interface, the processor is used to communicate with the control plane of the core network through the control plane base station; and communicate with the user plane of the core network through the user plane base station, and the communication interface is used to communicate with external devices. Each implementation process and implementation method of the above method embodiment can be applied to the network side device embodiment, and can achieve the same technical effect.

[0122] Specifically, the embodiment of the present application also provides a network side device. Figure 7As shown, the network device 700 includes: an antenna 701, a radio frequency device 702, and a baseband device 703. The antenna 701 is connected to the radio frequency device 702. In the uplink direction, the radio frequency device 702 receives information through the antenna 701 and sends the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information to be sent and sends it to the radio frequency device 702. The radio frequency device 702 processes the received information and sends it out through the antenna 701.

[0123] The frequency band processing device may be located in the baseband device 703 . The method performed by the network-side device in the above embodiment may be implemented in the baseband device 703 . The baseband device 703 includes a processor 704 and a memory 705 .

[0124] The baseband device 703 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in the figure, one of which is, for example, a processor 704, which is connected to the memory 705 to call the program in the memory 705 and execute the network device operations shown in the above method embodiment.

[0125] The baseband device 703 may further include a network interface 706 for exchanging information with the radio frequency device 702 . The interface may be, for example, a common public radio interface (CPRI for short).

[0126] Specifically, the network side device of an embodiment of the present invention also includes: instructions or programs stored in the memory 705 and executable on the processor 704, and the processor 704 calls the instructions or programs in the memory 705 to execute: communicating with the control plane of the core network through the control plane base station; communicating with the user plane of the core network through the user plane base station.

[0127] Processor 704 calls instructions or programs in memory 705 to execute Figure 5 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0128] The embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to communicate with the control plane of the core network through the control plane base station; and communicate with the user plane of the core network through the user plane base station; the communication interface is used to communicate with external devices. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal device for implementing an embodiment of the present application.

[0129] The terminal device 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and at least some of the components of a processor 810.

[0130] Those skilled in the art can understand that the terminal device 800 can also include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. The terminal device structure shown in the figure does not constitute a limitation on the terminal device, and the terminal device may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be repeated here.

[0131] It should be understood that in the embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the GPU 8041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0132] In the embodiment of the present application, the radio frequency unit 801 receives downlink data from the network side device and sends it to the processor 810 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 801 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0133] The memory 809 can be used to store software programs or instructions and various data. The memory 809 can mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 809 can include a high-speed random access memory, and can also include a non-volatile memory, wherein the non-volatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0134] The processor 810 may include one or more processing units; optionally, the processor 810 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 810.

[0135] The terminal device 800 according to the embodiment of the present invention can refer to the corresponding Figure 2-4c The process of the method of the embodiment of the embodiment, and the various units / modules in the terminal device 800 and the above-mentioned other operations and / or functions are respectively for realizing the corresponding processes in the communication method, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0136] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned communication method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0137] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0138] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned communication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0139] 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.

[0140] An embodiment of the present application further provides a computer program product, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction implements the steps of the communication method when executed by the processor.

[0141] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0142] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0143] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A communication method, characterized in that: A user equipment UE communicating with a core network supports dual connectivity of a control plane and a user plane, and the method includes: Communicate with the control plane of the core network through the control plane base station; The user plane communicates with the core network through the user plane base station.

2. The method according to claim 1, characterized in that The carrier or cell of the control plane base station is configured with at least one of the following channels: Primary synchronization signal PSS, secondary synchronization signal SSS, physical broadcast channel PBCH, physical downlink control channel PDCCH, physical downlink shared channel PDSCH, physical random access channel PRACH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, and sounding reference signal SRS.

3. The method according to claim 1, characterized in that The user plane base station comprises: An uplink user plane base station, the uplink user plane base station only supports an uplink carrier; or A downlink user plane base station, wherein the downlink user plane base station only supports a downlink carrier.

4. The method according to claim 3, characterized in that The downlink user plane base station includes at least one of the following: A first downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization, independent scheduling, independent deployment and downlink hybrid automatic repeat request HARQ; A second downlink user plane base station, wherein the second downlink user plane base station supports downlink synchronization, independent scheduling and independent deployment; A third downlink user plane base station, wherein the third downlink user plane base station supports independent scheduling, independent deployment and downlink hybrid automatic repeat request HARQ; a fourth downlink user plane base station, wherein the fourth downlink user plane base station supports independent scheduling and independent deployment; A fifth downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization, independent deployment and downlink hybrid automatic repeat request HARQ; A sixth downlink user plane base station, wherein the first downlink user plane base station supports downlink synchronization and independent deployment; A seventh downlink user plane base station, wherein the first downlink user plane base station supports independent deployment and downlink hybrid automatic repeat request HARQ; An eighth downlink user plane base station, wherein the eighth downlink user plane base station supports independent deployment.

5. The method according to claim 4, characterized in that The first downlink user plane base station configures PSS, SSS, DMRS, PDCCH, PDSCH, and PUCCH; The second downlink user plane base station configures PSS, SSS, DMRS, PDCCH, and PDSCH; The third downlink user plane base station configures DMRS, PDCCH, PDSCH, and PUCCH; The fourth downlink user plane base station configures DMRS, PDCCH, and PDSCH; The fifth downlink user plane base station configures PSS, SSS, DMRS, PDCCH, PDSCH, and PUCCH; The sixth downlink user plane base station configures PSS, SSS, DMRS, PDCCH, and PDSCH; The seventh downlink user plane base station configures DMRS, PDCCH, PDSCH, and PUCCH; The eighth downlink user plane base station configures DMRS, PDCCH, and PDSCH.

6. The method according to claim 2, characterized in that The uplink user plane base station includes at least one of the following: A first uplink user plane base station, a first downlink carrier is synchronized with a first uplink carrier of the first uplink user plane base station, and the first uplink user plane base station is not configured with a PRACH; A second uplink user plane base station, wherein the second uplink user plane base station is configured with a PRACH.

7. The method according to claim 6, characterized in that In the case that the user plane base station only supports uplink carrier, the user plane base station configures SRS, DMRS and PUSCH.

8. The method according to claim 4, characterized in that The communicating with the control plane of the core network through the control plane base station includes: Establishing a connection between the user equipment UE and the control cell CP cell according to an access request initiated by the UE on the control cell CP cell of the control plane base station; Performing radio resource control RRC configuration through the CP cell; According to the RRC configuration, a communication connection is established between the UE and a control cell (CP cell) of the control plane base station.

9. The method according to claim 8, characterized in that The user plane communication with the core network through the user plane base station includes: A communication connection between the UE and a user plane cell UP cell of the user plane base station is established according to the RRC configuration.

10. The method according to claim 8, characterized in that Establishing a communication connection between the UE and a control cell CP cell of the control plane base station includes: Scheduling the UE to perform uplink data transmission on a carrier of a third base station through the PDCCH of the CP cell, wherein the uplink carrier of the CP cell corresponds to the third base station, and the third base station is one of the uplink user plane base stations; The UE is scheduled to perform PRACH with a fourth base station through the PDCCH of the UP cell, and uplink data transmission is performed on a carrier of the fourth base station, wherein the fourth base station is a base station among the uplink user plane base stations except the third base station.

11. The method according to claim 9, characterized in that Establishing a communication connection between the UE and a user plane cell UP cell of the user plane base station includes: Scheduling the UE to perform downlink data transmission on the PDSCH of the first base station through the PDCCH of the UP cell, wherein the downlink carrier of the UP cell corresponds to the first base station, and the first base station is one of the downlink user plane base stations; The UE is scheduled to perform downlink data transmission on the PDSCH of the second base station through the PDCCH of the UP cell, wherein the second base station is a base station among the downlink user plane base stations except the first base station.

12. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the communication method according to any one of claims 1 to 11.

13. A network device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the communication method according to any one of claims 1 to 11.

14. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the communication method according to any one of claims 1 to 11 are implemented.

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