WO2021209026A1 - 小区接入方法、设备及系统 - Google Patents

小区接入方法、设备及系统 Download PDF

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Publication number
WO2021209026A1
WO2021209026A1 PCT/CN2021/087692 CN2021087692W WO2021209026A1 WO 2021209026 A1 WO2021209026 A1 WO 2021209026A1 CN 2021087692 W CN2021087692 W CN 2021087692W WO 2021209026 A1 WO2021209026 A1 WO 2021209026A1
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WIPO (PCT)
Prior art keywords
cell
network device
indication information
access
indication
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PCT/CN2021/087692
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English (en)
French (fr)
Inventor
李中煌
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to ES21788968T priority Critical patent/ES3059991T3/es
Priority to JP2022563103A priority patent/JP7498296B2/ja
Priority to EP21788968.2A priority patent/EP4120740B1/en
Priority to KR1020227035772A priority patent/KR20220154775A/ko
Publication of WO2021209026A1 publication Critical patent/WO2021209026A1/zh
Priority to US17/965,981 priority patent/US12556980B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00698—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using different RATs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the embodiments of the present invention relate to the field of communication technologies, and in particular, to a cell access method, device, and system.
  • Non-Standalone NSA
  • non-independent networking is the deployment of 5G networks through the use of 4G network infrastructure.
  • a user equipment accesses a 5G network through a non-independent networking
  • the network equipment can send 5G cell measurement instructions to UEs connected to the 4G network, so that the UE can search for 5G cells And measure, and report the measurement result to the network device, and then the network device can send a reconfiguration message (including 5G cell configuration information) to the UE, so that the UE can send a reconfiguration complete message to the network device and try to access the 5G cell .
  • a reconfiguration message including 5G cell configuration information
  • the network device since the UE is trying to access the 5G cell, the network device will reconfigure the uplink and downlink data transmission channel (for example, only the uplink and downlink data transmission is performed in the 5G cell), and the UE is trying to access In a 5G cell, there will be access failures (such as poor cell signal), and the failure report will be reported after multiple failures, so that the network equipment will reconfigure the transmission channel of uplink and downlink data (such as uplink and downlink in a 4G cell). Data transmission), therefore, there will be a problem that the UE's network connection is interrupted, which causes the problem of UE communication interruption.
  • the embodiments of the present invention provide a cell access method, device and system, which can solve the problem of UE communication interruption caused by the interruption of the network connection of the UE.
  • a cell access method is provided, which is applied to a UE.
  • the UE is connected to a first network device, and the first network device is connected to a second network device.
  • the cell access method includes : When the UE accesses the first cell, receiving the configuration information of the second cell sent by the first network device, the first cell is the serving cell of the first network device, and the second cell is connected to the first network The serving cell of the second network device to which the device is connected; according to the configuration information of the second cell, the first indication information is sent to the first network device, and the access process of the second cell is executed.
  • the first indication information is used to indicate that the UE is not The access to the second cell is completed, and the first indication information is used by the first network device to keep in the first cell for data transmission; in the case that the UE successfully accesses the second cell and the second cell meets the preset conditions, Send second indication information to the first network device, where the second indication information is used to indicate that the UE has successfully accessed the second cell, and the second indication information is used by the first network device to switch the data transmission path from the first cell to the second cell. Second cell.
  • a cell access method which is applied to a first network device.
  • the cell access method includes: when the UE accesses the first cell, sending the configuration of the second cell to the UE Information, the configuration information of the second cell is used by the UE to access the second cell, the first cell is the serving cell of the first network device, and the second cell is the serving cell of the second network device connected to the first network device ; Receive the first indication information sent by the UE, and according to the first indication information, keep in the first cell for data transmission; where the first indication information is used to indicate that the UE has not completed access to the second cell; receive the UE sent According to the second indication information, the data transmission path is switched from the first cell to the second cell; wherein the second indication information is used to indicate that the UE has successfully accessed the second cell.
  • a UE in a third aspect of the embodiments of the present invention, is provided.
  • the UE may include: a receiving module, a sending module, and an executing module.
  • the receiving module is configured to receive the configuration information of the second cell sent by the first network device when the UE accesses the first cell.
  • the first cell is the serving cell of the first network device
  • the second cell is the serving cell of the first network device.
  • the cell is a serving cell of the second network device connected to the first network device.
  • the sending module is configured to send first indication information to the first network device according to the configuration information of the second cell received by the receiving module, the first indication information is used to indicate that the UE has not completed access to the second cell, and the first indication The information is used by the first network device to keep in the first cell for data transmission.
  • the execution module is used to execute the access procedure of the second cell.
  • the sending module is further configured to send second indication information to the first network device when the UE successfully accesses the second cell and the second cell meets the preset conditions, where the second indication information is used to indicate that the UE has successfully accessed Enter the second cell, and the second indication information is used by the first network device to switch the data transmission path from the first cell to the second cell.
  • a network device is provided.
  • the network device is a first network device.
  • the network device may include: a sending module, a receiving module, a holding module, and a switching module.
  • the sending module is used to send configuration information of the second cell to the UE when the UE accesses the first cell.
  • the configuration information of the second cell is used for the UE to access the second cell, and the first cell is the first cell.
  • a serving cell of a network device, and the second cell is a serving cell of a second network device connected to the first network device.
  • the receiving module is configured to receive first indication information sent by the UE, where the first indication information is used to indicate that the UE has not completed access to the second cell.
  • the holding module is configured to maintain the data transmission in the first cell according to the first indication information received by the receiving module.
  • the receiving module is further configured to receive second indication information sent by the UE, where the second indication information is used to indicate that the UE has successfully accessed the second cell.
  • the switching module is configured to switch the data transmission path from the first cell to the second cell according to the second indication information received by the receiving module.
  • a UE in a fifth aspect of the embodiments of the present invention, includes a processor, a memory, and a computer program stored in the memory and running on the processor.
  • the computer program implements the above-mentioned first aspect when executed by the processor. The steps in the cell access method.
  • a network device in a sixth aspect of the embodiments of the present invention, includes a processor, a memory, and a computer program that is stored in the memory and can run on the processor. The steps of the cell access method in the second aspect.
  • a communication system in a seventh aspect of the embodiments of the present invention, includes the UE described in the third aspect and the network device described in the fourth aspect; or, the communication system includes the communication system described in the fifth aspect.
  • a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the cell access method described in the first aspect is implemented Steps, or steps of the cell access method as described in the second aspect.
  • the UE when the UE accesses the first cell, it can send first indication information to the first network device according to the received configuration information of the second cell (indicating that the UE has not completed access to the second cell). ), and execute the access process of the second cell, and then when the UE successfully accesses the second cell and the second cell meets the preset conditions, send second indication information to the first network device (indicating that the UE has successfully accessed Into the second cell).
  • the UE successfully accesses the second cell Before the UE successfully accesses the second cell, it can first send an indication message to the first network device to indicate to the first network device that the UE has not completed access to the second cell, so the first network device may not perform data
  • the handover of the transmission path means continuing to maintain data transmission in the first cell, thus avoiding the problem of data interruption before the second cell is successfully accessed; and after the UE successfully accesses the second cell, it can perform data transmission on the second cell. Make a judgment to determine whether the second cell can communicate stably, so that when the second cell can communicate stably, send an indication message to the first network device to indicate to the first network device that the UE has completed the successful connection of the second cell.
  • the first network device can switch the data transmission path, that is, switch to data transmission in the second cell. In this way, data interruption and frequent network disconnection/disconnection problems can be avoided , Which can ensure the stability of UE data transmission and communication fluency.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present invention
  • Figure 2 is one of the flowcharts of a cell access method provided by an embodiment of the present invention.
  • FIG. 3 is the second flowchart of a cell access method provided by an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a UE provided by an embodiment of the present invention.
  • Figure 5 is a schematic structural diagram of a network device provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of hardware of a UE provided by an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of hardware of a network device provided by an embodiment of the present invention.
  • first and second in the description and claims of the embodiments of the present invention are used to distinguish different objects, rather than to describe a specific order of objects.
  • first threshold and the second threshold are used to distinguish different thresholds, rather than to describe the specific order of the thresholds.
  • plural means two or more.
  • a plurality of elements refers to two elements or more than two elements.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • Non-independent networking (NSA) networking mode 5G network deployment can include two parts: radio access network (RAN) and core network (core network).
  • the wireless access network is mainly composed of base stations to provide users with wireless access functions.
  • the core network mainly provides users with Internet access services and corresponding management functions. Due to the huge investment in deploying new networks and the two parts to be deployed separately, the standardization organization 3GPP (3rd generation partnership project) has two methods for deployment: SA (standalone, independent networking) and NSA (non-standalone, non-standalone) net).
  • SA standalone, independent networking
  • NSA non-standalone, non-standalone
  • Independent networking refers to the creation of an existing network, including new base stations, backhaul links, and core networks.
  • Non-independent networking refers to the deployment of 5G networks using existing 4G infrastructure.
  • the 4G base station (eNB) and the 5G base station (gNB) are dual-linked.
  • the control plane and user plane of the 5G base station are both connected to the core network equipment by the 4G base station, that is, the 5G base station's signaling is sent to the UE through the 4G base station.
  • the embodiment of the present invention provides a cell access method, device, and system.
  • the UE Before the UE successfully accesses the second cell, it can first send an indication message to the first network device to indicate to the first network device that the UE has not completed Access to the second cell, so that the first network device may not switch the data transmission path, that is, continue to perform data transmission in the first cell, so that the problem of data interruption before the second cell is successfully accessed can be avoided; and After successfully accessing the second cell, the UE can make a judgment on the second cell to determine whether the second cell can communicate stably, so that when the second cell can communicate stably, it sends an indication message to the first network device.
  • the first network device To indicate to the first network device that the UE has completed successful access to the second cell and the second cell can communicate stably, so that the first network device can switch the data transmission path, that is, switch to data transmission in the second cell, In this way, data interruption and frequent network disconnection/disconnection problems can be avoided, thereby ensuring the stability of UE data transmission and communication fluency.
  • the cell access method, device, and system provided by the embodiments of the present invention can be applied to a communication system. It can be specifically applied to the process of accessing the second cell when the UE accesses the first cell based on the communication system.
  • FIG. 1 shows a schematic structural diagram of a communication system provided by an embodiment of the present invention.
  • the communication system may include UE 01, network equipment 02, and network equipment 03. Among them, a connection and communication can be established between the UE 01 and the network device 02, and a connection and communication can be established between the network device 02 and the network device 03.
  • FIG. 1 illustrates the connection relationship between the network device 02 and the network device 03 with a solid line.
  • a UE is a device that provides users with voice and/or data connectivity, a handheld device with wired/wireless connection functions, or other processing devices connected to a wireless modem.
  • the UE may communicate with one or more core network devices via the RAN.
  • the UE in the embodiment of the present invention may be a mobile UE or a non-mobile UE.
  • the mobile UE may be a mobile phone (or called a "cellular" phone) and a computer with a mobile UE (such as a tablet computer, a notebook computer, a palmtop computer, etc.), or it may be a portable, pocket-sized, handheld, computer Built-in or vehicle-mounted mobile devices that exchange language and/or data with the RAN, such as personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loops (wireless local loops) loop, WLL) station, personal digital assistant (personal digital assistant, PDA) and other equipment.
  • the non-mobile UE may be a 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 invention.
  • the UE in the embodiment of the present invention may be a UE with an operating system.
  • the operating system may be an Android operating system, an ios operating system, or other possible operating systems, which is not specifically limited in the embodiment of the present invention.
  • the architecture of the Android operating system includes 4 layers, namely: an application program layer, an application program framework layer, a system runtime library layer, and a kernel layer (specifically, it may be a Linux kernel layer).
  • the application layer includes various applications (including system applications and third-party applications) in the Android operating system.
  • the application framework layer is the framework of the application. Developers can develop some applications based on the application framework layer while complying with the development principles of the application framework.
  • the system runtime layer includes a library (also called a system library) and an Android operating system runtime environment. The library mainly provides various resources needed by the Android operating system.
  • the Android operating system operating environment is used to provide a software environment for the Android operating system.
  • the kernel layer is the operating system layer of the Android operating system and belongs to the lowest level of the Android operating system software level. The kernel layer is based on the Linux kernel to provide core system services and hardware-related drivers for the Android operating system.
  • developers can develop a software program that implements the cell access method provided by the embodiment of the present invention based on the system architecture of the Android operating system described above, so that the cell can be accessed
  • the method can be run based on the Android operating system described above. That is, the processor or the UE can implement the cell access provided in the embodiment of the present invention by running the software program in the Android operating system.
  • the network device may be a base station (for example, a primary base station or a secondary base station).
  • a base station is a device deployed in the RAN to provide wireless communication functions for the UE.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • network device 02 can be a base station in a long term evolution (LTE) system, which can be called evolution.
  • LTE long term evolution
  • a type base station evolved NodeB, eNB or eNodeB
  • the network device 03 may be a base station in a fifth-generation mobile communication (5G) network, and may be called a gNB.
  • 5G fifth-generation mobile communication
  • the name "base station” may change. It is worth noting that, the embodiment of the present invention only uses the 4G network and the 5G network as an example description, but should not be used as a scenario limitation of the embodiment of the present invention.
  • both the LTE base station and the 5G base station are connected to the LTE core network
  • the LTE base station is the master base station (ie MeNB)
  • the 5G base station is the slave base station (ie SeNB)
  • the LTE base station and 5G base station are connected and interconnected through the Xx interface.
  • the S1-C on the control plane is terminated at the LTE base station, and the control plane information between the LTE base station and the 5G base station is exchanged through the Xx-C interface.
  • the user plane has different user plane protocol architectures in different dual connection modes.
  • the data plane radio bearer can be independently served by the MeNB or SeNB, or simultaneously served by the MeNB and SeNB.
  • the network device when the UE accesses a 4G cell, when the UE tries to access a 5G cell, the network device will reconfigure the data transmission path (for example, the data transmission path corresponding to the 5G cell), that is, the UE has currently disconnected from the 4G cell. Network connection, and the UE sends a failure report to the network device only after it tries to access the 5G cell for many times (for example, the cell signal is poor), and then the network device reconfigures the data transmission path (for example, the data corresponding to the 4G cell) Transmission path), so there will be a problem that the UE’s network connection is interrupted, causing the UE’s communication to be interrupted.
  • the data transmission path for example, the data transmission path corresponding to the 5G cell
  • the UE may first send an indication message to the first network device to inform the first network device that the UE has not switched to the data corresponding to the 5G network.
  • the first network device can continue to send data to the UE on the data transmission path corresponding to the 4G network (that is, to avoid interruption of the 4G network connection), and then the UE can perform the random access process of the 5G cell, and according to the 5G cell’s
  • Some network parameters (such as signal value, whether there has been a wireless link failure, etc.) are evaluated for the cell, in order to indicate to the first network device that the first network device has successfully accessed the 5G cell and can communicate normally, so that the first network The device can switch from the data transmission path corresponding to the 4G network to the data transmission path corresponding to the 5G network for data transmission. In this way, it can be avoided that the connection of the 4G network is interrupted before the UE successfully accesses the 5G cell, thereby ensuring the stability of data transmission between the UE and the first network device.
  • an embodiment of the present invention provides a cell access method.
  • the cell access method may include the following steps 201 to 206.
  • Step 201 When the UE accesses the first cell, the first network device sends configuration information of the second cell to the UE.
  • the above-mentioned configuration information of the second cell is used for the UE to access the second cell.
  • the first cell is a serving cell of a first network device
  • the second cell is a serving cell of a second network device connected to the first network device.
  • the UE may search for the first cell, and if the first cell is found, send an attachment request to the first network device (for example, an LTE base station); after the first network device receives the attachment request , A capability request (used to request the ability of the UE to be inquired) may be sent to the UE, so that the UE reports the capability of the UE to the first network device; the first network device may send an attach response to the UE according to the capability of the UE, so that the UE accesses the first network device.
  • the first network device for example, an LTE base station
  • the first network device when the UE accesses the first cell, the first network device (for example, an LTE base station) may issue a measurement instruction for the second cell to the UE in the first cell; after the UE receives the measurement instruction, Search for the second cell (read physical broadcast channel (PBCH)), and when the second cell is found, measure the second cell, and then the UE can report the measurement to the first network device Result (that is, the result of measuring the second cell); after receiving the measurement result, the first network device can send a second cell addition request (also called a second cell connection) to the second network device (for example, a 5G base station).
  • PBCH physical broadcast channel
  • the second network device can send the cell information and bearer information of the second cell to the first network device, and then the first network device can send the uplink/downlink configuration information of the second cell to the UE, so that the UE An attempt to access the second cell can be performed.
  • step 201 may be specifically implemented by the following step 201a.
  • Step 201a When the UE accesses the first cell, the first network device sends a reconfiguration message to the UE.
  • the above-mentioned reconfiguration message includes the configuration information of the second cell.
  • the above-mentioned reconfiguration message may be a radio resource control (radio resource control, RRC) connection reconfiguration message.
  • RRC radio resource control
  • the above-mentioned first cell may be a 4G cell (or an LTE cell); and the above-mentioned second cell may be a 5G cell (also known as a new radio (NR) cell),
  • the 5G cell may specifically be a 5G secondary cell group (SCG);
  • the configuration information of the second cell may specifically be 5G SCG configuration information.
  • Step 202 When the UE accesses the first cell, the UE receives configuration information of the second cell sent by the first network device.
  • step 202 may be specifically implemented by the following step 202a.
  • Step 202a When the UE accesses the first cell, the UE receives a reconfiguration message sent by the first network device.
  • Step 203 The UE sends the first indication information to the first network device according to the configuration information of the second cell, and executes the access procedure of the second cell.
  • the above-mentioned first indication information is used to indicate that the UE has not completed the access/addition of the second cell, and the above-mentioned first indication information is used for the first network device to keep in the first cell for data transmission.
  • step 203 may be specifically implemented by the following step 203a.
  • Step 203a The UE sends a reconfiguration complete message to the first network device according to the configuration information of the second cell, and executes the access process of the second cell.
  • the above-mentioned reconfiguration complete message includes the first indication information.
  • the UE can check whether the reconfiguration message (that is, the configuration information of the second cell in the reconfiguration message) is normal (that is, check whether the first network device is configured with abnormal parameters), and check whether the reconfiguration message is normal.
  • a reconfiguration complete message is sent to the first network device, and the first indication information is carried in the reconfiguration complete message.
  • the foregoing reconfiguration complete message may be an RRC connection reconfiguration complete (RRC connection reconfiguration complete) message.
  • the above-mentioned first indication information may be a boolean field, and the value of the boolean field is the first value.
  • the value of the above-mentioned first indication information may be agreed with the first network device, and specifically may be true.
  • the first network device It can be learned that the UE has not completed access to the second cell.
  • the value of the above-mentioned first indication information may also be other values (for example, false), which can be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the UE when the UE has completed access to the second cell, the UE may send an indication information to the first network device (for example, the value of the indication information may be false), and send it to the first network device.
  • a network device indicates that the UE has completed access to the second cell, so that the first network device can perform data transmission in the second cell (that is, send data on the newly configured uplink and downlink channels).
  • the UE may perform random access in the second cell to achieve access to the second cell.
  • first indication information may also be referred to as data transmission path unchanged indication information (for example, SCG-configuration on going-r15 indication), which is used to indicate to the first network device that the data transmission path does not change, that is, continue/ Keep data transmission in the first cell.
  • data transmission path unchanged indication information for example, SCG-configuration on going-r15 indication
  • the first indication information can be added to the reconfiguration complete message to inform the first network device that the UE has not added the second cell currently, so that the UE and the first The network device can continue to transmit data on the uplink and downlink data transmission path of the first cell.
  • Step 204 The first network device receives the first indication information sent by the UE, and according to the first indication information, keeps in the first cell for data transmission.
  • step 204 may be specifically implemented by the following step 204a.
  • Step 204a The first network device receives the reconfiguration complete message sent by the UE, and maintains the data transmission in the first cell according to the first indication information.
  • the first network device after receiving the first indication information, the first network device can learn that the UE has not yet completed access to the second cell. Therefore, the first network device may not switch the uplink and downlink data transmission paths, and continue Data is transmitted on the uplink and downlink data transmission path of the first cell.
  • Step 205 When the UE successfully accesses the second cell and the second cell meets a preset condition, the UE sends second indication information to the first network device.
  • the above-mentioned second indication information is used to indicate that the UE has successfully accessed the second cell, and the above-mentioned second indication information is used for the first network device to switch the data transmission path from the first cell to the second cell.
  • the UE may perform data transmission in the second cell (that is, on the uplink and downlink data transmission path of the second cell).
  • the UE after successfully accessing the second cell, the UE can evaluate the network condition of the second cell, that is, determine whether the second cell meets preset conditions, so as to determine whether the second cell can communicate stably.
  • the foregoing preset condition may include at least one of the following: a reference signal receiving power (RSRP) value of the second cell is greater than or equal to a first threshold (for example, -115dbm); The reference signal receiving quality (RSRQ) value of the second cell is greater than or equal to the second threshold; the signal to noise ratio (SNR) of the second cell is greater than or equal to the third threshold (for example, 3db); And, there is no radio link failure (radio link failure, RLF) in the second cell within the preset time period.
  • RSRP reference signal receiving power
  • RSRQ reference signal receiving quality
  • SNR signal to noise ratio
  • RLF radio link failure
  • the above-mentioned RLF may be caused by at least one of the following: wireless interference, cell warning, network equipment failure, UE failure, weak wireless network coverage, cell base station out of synchronization, cell full load, and so on.
  • step 205 may be specifically implemented by the following step 205a.
  • Step 205a When the UE successfully accesses the second cell and the second cell meets the preset condition, the UE sends a cell access completion indication message to the first network device.
  • the above-mentioned cell access completion indication message includes the second indication information.
  • the above-mentioned cell access completion indication message may specifically be an SCG addition complete indication (SCG addition complete indication) message.
  • the foregoing second indication information may be a cell access completion indication cause (SCG addition complete indication cause) field, and the value of the cell access completion indication cause field is the second value.
  • SCG addition complete indication cause cell access completion indication cause
  • the value of the second indication information may be agreed with the first network device, and specifically may be normal.
  • the first network device It can be learned that the UE has successfully accessed the second cell.
  • the value of the above-mentioned second indication information may also be other values (for example, fail), which may be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the UE may send an indication information to the first network device (for example, the value of the indication information may be fail), and send the indication information to the first network device.
  • the network device instructs the UE to fail to access the second cell (that is, the second cell cannot communicate stably), so the first network device releases the second cell and continues to perform data transmission in the first cell.
  • the UE after the UE successfully accesses the second cell, it can add second indication information to the cell access completion indication message to inform the first network device that the UE has successfully accessed the second cell so that the first The network device can switch the uplink and downlink data transmission path to the second cell for data transmission.
  • Step 206 The first network device receives the second indication information sent by the UE, and switches the data transmission path from the first cell to the second cell according to the second indication information.
  • the UE may perform data interaction with the second network device through the second cell.
  • the first network device after receiving the second indication information, can learn that the UE has currently completed successful access to the second cell. Therefore, the first network device can switch the uplink and downlink data transmission paths. The uplink and downlink data transmission path of one cell is switched to the uplink and downlink data transmission path of the second cell, so as to realize the transmission of uplink and downlink data through the second network device.
  • step 206 may be specifically implemented by the following step 206a.
  • Step 206a The first network device receives the cell access completion indication message sent by the UE, and switches the data transmission path from the first cell to the second cell according to the second indication information.
  • the UE in the 5G NSA mode, can send indication information to the first network device before the second cell (for example, 5G SCG) is successfully added, so that the first network device continues to be
  • the uplink and downlink data transmission path of the first cell (for example, 4G network) exchanges data with the UE, avoiding the problem of data interruption caused by multiple failures of the second cell access due to abnormal second cell or poor signal of the second cell, etc. ;
  • a new RRC message is constructed between the UE and the first network device. After the UE successfully accesses the second cell, it can evaluate the status of the second cell and send indication information to the first through the new RRC message.
  • the network device informs that the second cell has been added successfully and can communicate stably, so that the first network device can switch the uplink and downlink data transmission path to the uplink and downlink data transmission path of the second cell; in this way, data interruption and frequent drops are avoided.
  • the problem of network/disconnection ensures the stability of UE data transmission and improves the smoothness of communication in NSA mode.
  • the embodiment of the present invention provides a cell access method.
  • a UE accesses a first cell, it can send first indication information (indicating that the UE has not completed the first network device) to the first network device according to the received configuration information of the second cell. Access to the second cell), and execute the access process of the second cell, and then when the UE successfully accesses the second cell and the second cell meets the preset conditions, send the second indication information to the first network device ( Indicates that the UE has successfully accessed the second cell).
  • the UE successfully accesses the second cell Before the UE successfully accesses the second cell, it can first send an indication message to the first network device to indicate to the first network device that the UE has not completed access to the second cell, so the first network device may not perform data
  • the handover of the transmission path means continuing to maintain data transmission in the first cell, thus avoiding the problem of data interruption before the second cell is successfully accessed; and after the UE successfully accesses the second cell, it can perform data transmission on the second cell. Make a judgment to determine whether the second cell can communicate stably, so that when the second cell can communicate stably, send an indication message to the first network device to indicate to the first network device that the UE has completed the successful connection of the second cell.
  • the first network device can switch the data transmission path, that is, switch to data transmission in the second cell. In this way, data interruption and frequent network disconnection/disconnection problems can be avoided , Which can ensure the stability of UE data transmission and communication fluency.
  • FIG. 4 shows a schematic diagram of a possible structure of a UE involved in an embodiment of the present invention.
  • the UE 40 may include: a receiving module 41, a sending module 42 and an executing module 43.
  • the receiving module 41 is configured to receive configuration information of the second cell sent by the first network device when the UE accesses the first cell.
  • the first cell is the serving cell of the first network device, and the first cell is the serving cell of the first network device.
  • the second cell is a serving cell of the second network device connected to the first network device.
  • the sending module 42 is configured to send first indication information to the first network device according to the configuration information of the second cell received by the receiving module 41.
  • the first indication information is used to indicate that the UE has not completed access to the second cell.
  • An indication information is used for the first network device to keep in the first cell for data transmission.
  • the execution module 43 is configured to execute the access procedure of the second cell.
  • the sending module 42 is further configured to send second indication information to the first network device when the UE successfully accesses the second cell and the second cell meets the preset conditions, the second indication information is used to indicate that the UE has succeeded Access to the second cell, and the second indication information is used by the first network device to switch the data transmission path from the first cell to the second cell.
  • the foregoing receiving module 41 is specifically configured to receive a reconfiguration message sent by the first network device, where the reconfiguration message includes configuration information of the second cell.
  • the foregoing sending module 42 is specifically configured to send a reconfiguration complete message to the first network device, where the reconfiguration complete message includes first indication information; and send a cell access complete indication message to the first network device, and the cell access is complete
  • the instruction message includes the second instruction information.
  • the foregoing reconfiguration message may be an RRC connection reconfiguration message.
  • the foregoing reconfiguration complete message may be an RRC connection reconfiguration complete message.
  • the foregoing first indication information may be a Boolean type field, and the value of the Boolean type field is the first value.
  • the foregoing second indication information may be a cell access completion indication reason field, and the value of the cell access completion indication reason field is the second value.
  • the foregoing preset conditions may include at least one of the following: the RSRP value of the second cell is greater than or equal to the first threshold; the RSRQ value of the second cell is greater than or equal to the second threshold; The SNR is greater than or equal to the third threshold; and, there is no RLF in the second cell within the preset time period.
  • the UE provided in the embodiment of the present invention can implement each process implemented by the UE in the foregoing method embodiment. To avoid repetition, the detailed description will not be repeated here.
  • the embodiment of the present invention provides a UE. Before the UE successfully accesses the second cell, it may first send an indication message to the first network device to indicate to the first network device that the UE has not completed access to the second cell. Therefore, the first network device may not switch the data transmission path, that is, continue to perform data transmission in the first cell. Therefore, the problem of data interruption before the second cell is successfully accessed can be avoided; and the UE successfully accesses the second cell.
  • the second cell can be judged to determine whether the second cell can communicate stably, so that when the second cell can communicate stably, an indication message is sent to the first network device to indicate to the first network device
  • the UE has successfully accessed the second cell and the second cell can communicate stably, so that the first network device can switch the data transmission path, that is, switch to data transmission in the second cell. In this way, data interruption can be avoided And the problem of frequent network disconnection/disconnection, so as to ensure the stability of UE data transmission and the smoothness of communication.
  • FIG. 5 shows a schematic diagram of a possible structure of a network device involved in an embodiment of the present invention, and the network device is the first network device.
  • the network device 50 provided by the embodiment of the present invention may include: a sending module 51, a receiving module 52, a holding module 53, and a switching module 54.
  • the sending module 51 is configured to send configuration information of the second cell to the UE when the UE accesses the first cell.
  • the configuration information of the second cell is used for the UE to access the second cell, and the first cell is A serving cell of the first network device, where the second cell is a serving cell of a second network device connected to the first network device.
  • the receiving module 52 is configured to receive first indication information sent by the UE, where the first indication information is used to indicate that the UE has not completed access to the second cell.
  • the holding module 53 is configured to keep in the first cell for data transmission according to the first indication information received by the receiving module 52.
  • the receiving module 52 is further configured to receive second indication information sent by the UE, where the second indication information is used to indicate that the UE has successfully accessed the second cell.
  • the switching module 54 is configured to switch the data transmission path from the first cell to the second cell according to the second instruction information received by the receiving module 52.
  • the foregoing sending module 51 is specifically configured to send a reconfiguration message to the UE, where the reconfiguration message includes configuration information of the second cell.
  • the above-mentioned receiving module 52 is specifically configured to receive a reconfiguration complete message sent by the UE, the reconfiguration complete message includes first indication information; and receive a cell access complete indication message sent by the UE, the cell access complete indication message includes The second instruction information.
  • the foregoing reconfiguration message may be an RRC connection reconfiguration message.
  • the foregoing reconfiguration complete message may be an RRC connection reconfiguration complete message.
  • the foregoing first indication information may be a Boolean type field, and the value of the Boolean type field is the first value.
  • the foregoing second indication information may be a cell access completion indication reason field, and the value of the cell access completion indication reason field is the second value.
  • the network device provided by the embodiment of the present invention can implement each process implemented by the first network device in the foregoing method embodiment. To avoid repetition, the detailed description will not be repeated here.
  • the embodiment of the present invention provides a network device.
  • the first network device Before the UE successfully accesses the second cell, the first network device may not perform data according to an indication message sent by the UE (indicating that the UE has not completed access to the second cell).
  • the switching of the transmission path means continuing to maintain the data transmission in the first cell, thus avoiding the problem of data interruption before the second cell is successfully accessed; and after the UE successfully accesses the second cell, the first network device can follow An indication message sent by the UE (indicating that the UE has completed successful access to the second cell and that the second cell can communicate stably) to switch the data transmission path, that is, to switch to data transmission in the second cell. In this way, it can be avoided Data interruption and frequent network disconnection/disconnection problems occur, which can ensure the stability of UE data transmission and the smoothness of communication.
  • Fig. 6 is a schematic diagram of hardware of a UE that implements various embodiments of the present invention.
  • UE100 includes but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111 and other components.
  • the UE structure shown in FIG. 6 does not constitute a limitation on the UE, and the UE may include more or less components than those shown in FIG. 6, or combine certain components. Or different component arrangements.
  • the UE includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.
  • the radio frequency unit 101 is configured to receive configuration information of the second cell sent by the first network device when the UE accesses the first cell.
  • the first cell is the serving cell of the first network device
  • the second cell is the serving cell of the first network device.
  • the second cell is the serving cell of the second network device connected to the first network device; and according to the configuration information of the second cell, the first instruction information is sent to the first network device, and the first instruction information is used to indicate that the UE has not completed the second network device.
  • the first indication information is used by the first network device to keep in the first cell for data transmission.
  • the processor 110 is configured to execute an access procedure of the second cell.
  • the radio frequency unit 101 is further configured to send second indication information to the first network device when the UE successfully accesses the second cell and the second cell meets the preset conditions, the second indication information is used to indicate that the UE has succeeded Access to the second cell, and the second indication information is used by the first network device to switch the data transmission path from the first cell to the second cell.
  • the embodiment of the present invention provides a UE. Before the UE successfully accesses the second cell, it may first send an indication message to the first network device to indicate to the first network device that the UE has not completed access to the second cell. Therefore, the first network device may not switch the data transmission path, that is, continue to perform data transmission in the first cell. Therefore, the problem of data interruption before the second cell is successfully accessed can be avoided; and the UE successfully accesses the second cell.
  • the second cell can be judged to determine whether the second cell can communicate stably, so that when the second cell can communicate stably, an indication message is sent to the first network device to indicate to the first network device
  • the UE has successfully accessed the second cell and the second cell can communicate stably, so that the first network device can switch the data transmission path, that is, switch to data transmission in the second cell. In this way, data interruption can be avoided And the problem of frequent network disconnection/disconnection, so as to ensure the stability of UE data transmission and the smoothness of communication.
  • the radio frequency unit 101 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 110; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 101 can also communicate with the network and other devices through a wireless communication system.
  • the UE provides users with wireless broadband Internet access through the network module 102, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 103 can convert the audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output it as sound. Moreover, the audio output unit 103 may also provide audio output related to a specific function performed by the UE 100 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 104 is used to receive audio or video signals.
  • the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042.
  • the graphics processor 1041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame can be displayed on the display unit 106.
  • the image frame processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the network module 102.
  • the microphone 1042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 101 for output in the case of a telephone call mode.
  • the UE 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 1061 and/or when the UE 100 is moved to the ear. Backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify UE posture (such as horizontal and vertical screen switching, related games, Magnetometer posture calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 105 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.
  • the display unit 106 is used to display information input by the user or information provided to the user.
  • the display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 107 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the UE.
  • the user input unit 107 includes a touch panel 1071 and other input devices 1072.
  • the touch panel 1071 also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 1071 or near the touch panel 1071. operate).
  • the touch panel 1071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 110, the command sent by the processor 110 is received and executed.
  • the touch panel 1071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 107 may also include other input devices 1072.
  • other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 1071 can be overlaid on the display panel 1061.
  • the touch panel 1071 detects a touch operation on or near it, it transmits it to the processor 110 to determine the type of the touch event, and then the processor 110 determines the type of touch event according to the touch.
  • the type of event provides corresponding visual output on the display panel 1061.
  • the touch panel 1071 and the display panel 1061 are used as two independent components to implement the input and output functions of the UE, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated. Realize the input and output functions of the UE, which are not specifically limited here.
  • the interface unit 108 is an interface for connecting an external device with the UE 100.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 108 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the UE 100 or may be used to transmit between the UE 100 and the external device data.
  • the memory 109 can be used to store software programs and various data.
  • the memory 109 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
  • the memory 109 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 110 is the control center of the UE. It uses various interfaces and lines to connect various parts of the entire UE. Various functions of the UE and processing data, so as to monitor the UE as a whole.
  • the processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc.
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 110.
  • the UE 100 may also include a power source 111 (such as a battery) for supplying power to various components.
  • a power source 111 such as a battery
  • the power source 111 may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.
  • the UE 100 includes some functional modules that are not shown, which will not be repeated here.
  • an embodiment of the present invention further provides a UE, including a processor 110 as shown in FIG. 6, a memory 109, a computer program stored in the memory 109 and running on the processor 110, the computer program When executed by the processor 110, each process of the foregoing method embodiment is realized, and the same technical effect can be achieved. In order to avoid repetition, details are not described herein again.
  • the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, each process of the foregoing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, I won’t repeat them here.
  • the computer-readable storage medium such as read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.
  • Fig. 7 shows a hardware schematic diagram of a network device provided by an embodiment of the present invention.
  • the network device 130 includes a processor 131, a transceiver 132, a memory 133, a user interface 134, and a bus interface 135.
  • the transceiver 132 is configured to send configuration information of the second cell to the UE when the UE accesses the first cell.
  • the configuration information of the second cell is used for the UE to access the second cell, and the first cell is the first cell.
  • the serving cell of the network device, the second cell being the serving cell of the second network device connected to the first network device; and receiving the first indication information sent by the UE, the first indication information is used to indicate that the UE has not completed the second cell Access.
  • the processor 131 is configured to keep in the first cell for data transmission according to the first indication information.
  • the transceiver 132 is also configured to receive second indication information sent by the UE, where the second indication information is used to indicate that the UE has successfully accessed the second cell.
  • the processor 131 is further configured to switch the data transmission path from the first cell to the second cell according to the second indication information.
  • the embodiment of the present invention provides a network device.
  • the first network device Before the UE successfully accesses the second cell, the first network device may not perform data according to an indication message sent by the UE (indicating that the UE has not completed access to the second cell).
  • the switching of the transmission path means continuing to maintain the data transmission in the first cell, thus avoiding the problem of data interruption before the second cell is successfully accessed; and after the UE successfully accesses the second cell, the first network device can follow An indication message sent by the UE (indicating that the UE has completed successful access to the second cell and that the second cell can communicate stably) to switch the data transmission path, that is, to switch to data transmission in the second cell. In this way, it can be avoided Data interruption and frequent network disconnection/disconnection problems occur, which can ensure the stability of UE data transmission and the smoothness of communication.
  • the processor 131 may be responsible for managing the bus architecture and general processing, and the processor 131 may be used to read and execute programs in the memory 133 to implement processing functions and control the network device 130.
  • the memory 133 may store data used by the processor 131 when performing operations.
  • the processor 131 and the memory 133 may be integrated together, or may be independently arranged.
  • the network device 130 may further include: a computer program stored in the memory 133 and running on the processor 131, and when the computer program is executed by the processor 131, the steps of the method provided in the embodiment of the present invention are implemented.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 131 and various circuits of the memory represented by the memory 133 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are all known in the art. Therefore, the embodiments of the present invention will not further describe them.
  • the bus interface 135 provides an interface.
  • the transceiver 132 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the user interface 134 may also be an interface capable of connecting externally and internally with required equipment.
  • the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the embodiment of the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by the processor 131 as shown in FIG. 7, each process of the foregoing method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the computer-readable storage medium such as ROM, RAM, magnetic disk or optical disk, etc.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a UE (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.
  • a UE which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本发明实施例公开了一种小区接入方法、设备及系统，该方法包括：在UE接入第一小区的情况下，接收所述第一网络设备发送的第二小区的配置信息；根据第二小区的配置信息，向第一网络设备发送第一指示信息，并执行第二小区的接入过程，该第一指示信息用于指示UE未完成第二小区的接入，该第一指示信息用于第一网络设备保持在第一小区中进行数据传输；在UE成功接入第二小区、且第二小区满足预设条件的情况下，向第一网络设备发送第二指示信息，该第二指示信息用于指示UE已成功接入第二小区，该第二指示信息用于第一网络设备将数据传输通路从第一小区切换至第二小区。

Description

小区接入方法、设备及系统
相关申请的交叉引用
本申请主张在2020年04月17日在中国提交的中国专利申请号202010306530.4的优先权，其全部内容通过引用包含于此。
技术领域
本发明实施例涉及通信技术领域，尤其涉及一种小区接入方法、设备及系统。
背景技术
目前，5G网络的部署有两种方式，一种是独立组网(Standalone，SA)，另一种是非独立组网(Non－Standalone，NSA)。其中，非独立组网是通过使用4G网络的基础设施来进行5G网络的部署。通常，用户设备(user equipment，UE)在通过非独立组网进行5G网络的接入过程中，网络设备可以向连接4G网络的UE发送5G小区的测量指示，以使得UE可以进行5G小区的搜索和测量，并将测量的结果上报至网络设备，然后网络设备可以向UE发送重配置消息(包括5G小区的配置信息)，从而UE可以向网络设备发送重配置完成消息，并尝试接入5G小区。
然而，上述方法中，由于UE在尝试接入5G小区的过程中，网络设备会重配置上下行数据的传输通道(例如仅在5G小区中进行上下行数据的传输)，而UE在尝试接入5G小区时会存在接入失败(例如小区信号较差)的情况，并在多次失败后才上报失败报告，从而网络设备才重新配置上下行数据的传输通道(例如在4G小区中进行上下行数据的传输)，因此会存在UE的网络连接中断的问题，如此导致UE通信中断的问题。
发明内容
本发明实施例提供一种小区接入方法、设备及系统，可以解决UE的网络连接中断，导致的UE通信中断的问题。
为了解决上述技术问题，本发明实施例采用如下技术方案：
本发明实施例的第一方面，提供一种小区接入方法，应用于UE，所述UE与第一网络设备连接，所述第一网络设备与第二网络设备连接，该小区接入方法包括：在UE接入第一小区的情况下，接收所述第一网络设备发送的第二小区的配置信息，该第一小区为第一网络设备的服务小区，该第二小区为与第一网络设备连接的第二网络设备 的服务小区；根据第二小区的配置信息，向第一网络设备发送第一指示信息，并执行第二小区的接入过程，该第一指示信息用于指示UE未完成第二小区的接入，该第一指示信息用于第一网络设备保持在第一小区中进行数据传输；在UE成功接入第二小区、且第二小区满足预设条件的情况下，向第一网络设备发送第二指示信息，该第二指示信息用于指示UE已成功接入第二小区，该第二指示信息用于第一网络设备将数据传输通路从第一小区切换至第二小区。
本发明实施例的第二方面，提供一种小区接入方法，应用于第一网络设备，该小区接入方法包括：在UE接入第一小区的情况下，向UE发送第二小区的配置信息，该第二小区的配置信息用于UE接入第二小区，该第一小区为第一网络设备的服务小区，该第二小区为与第一网络设备连接的第二网络设备的服务小区；接收UE发送的第一指示信息，并根据第一指示信息，保持在第一小区中进行数据传输；其中，该第一指示信息用于指示UE未完成第二小区的接入；接收UE发送的第二指示信息，并根据第二指示信息，将数据传输通路从第一小区切换至第二小区；其中，该第二指示信息用于指示UE已成功接入第二小区。
本发明实施例的第三方面，提供一种UE，该UE可以包括：接收模块、发送模块和执行模块。其中，接收模块，用于在UE接入第一小区的情况下，接收所述第一网络设备发送的第二小区的配置信息，该第一小区为第一网络设备的服务小区，该第二小区为与第一网络设备连接的第二网络设备的服务小区。发送模块，用于根据接收模块接收的第二小区的配置信息，向第一网络设备发送第一指示信息，该第一指示信息用于指示UE未完成第二小区的接入，该第一指示信息用于第一网络设备保持在第一小区中进行数据传输。执行模块，用于执行第二小区的接入过程。发送模块，还用于在UE成功接入第二小区、且第二小区满足预设条件的情况下，向第一网络设备发送第二指示信息，该第二指示信息用于指示UE已成功接入第二小区，该第二指示信息用于第一网络设备将数据传输通路从第一小区切换至第二小区。
本发明实施例的第四方面，提供一种网络设备，该网络设备为第一网络设备，该网络设备可以包括：发送模块、接收模块、保持模块和切换模块。其中，发送模块，用于在UE接入第一小区的情况下，向UE发送第二小区的配置信息，该第二小区的配置信息用于UE接入第二小区，该第一小区为第一网络设备的服务小区，该第二小区为与第一网络设备连接的第二网络设备的服务小区。接收模块，用于接收UE发送的第一指示信息，该第一指示信息用于指示UE未完成第二小区的接入。保持模块，用于根据接收模块接收的第一指示信息，保持在第一小区中进行数据传输。接收模块，还用于接收UE发送的第二指示信息，该第二指示信息用于指示UE已成功接入第二 小区。切换模块，用于根据接收模块接收的第二指示信息，将数据传输通路从第一小区切换至第二小区。
本发明实施例的第五方面，提供一种UE，该UE包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述第一方面中的小区接入方法的步骤。
本发明实施例的第六方面，提供一种网络设备，该网络设备包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述第二方面中的小区接入方法的步骤。
本发明实施例的第七方面，提供一种通信系统，该通信系统包括如第三方面所述的UE，以及如第四方面所述的网络设备；或者，该通信系统包括如第五方面所述的UE，以及如第六方面所述的网络设备。
本发明实施例的第八方面，提供一种计算机可读存储介质，该计算机可读存储介质上存储计算机程序，该计算机程序被处理器执行时实现如第一方面所述的小区接入方法的步骤，或者如第二方面所述的小区接入方法的步骤。
在本发明实施例中，UE在接入第一小区的情况下，可以根据接收的第二小区的配置信息，向第一网络设备发送第一指示信息(指示UE未完成第二小区的接入)，并执行第二小区的接入过程，然后在UE成功接入第二小区、且第二小区满足预设条件的情况下，向第一网络设备发送第二指示信息(指示UE已成功接入第二小区)。由于UE在成功接入第二小区之前，可以先向第一网络设备发送一个指示信息，以向第一网络设备指示UE还未完成第二小区的接入，从而第一网络设备可以不进行数据传输通路的切换，即继续保持在第一小区中进行数据传输，因此可以避免第二小区接入成功之前发生数据中断的问题；并且UE在成功接入第二小区之后，可以对第二小区进行判断，以确定第二小区是否能够稳定通信，从而在第二小区能够稳定通信的情况下，向第一网络设备发送一个指示信息，以向第一网络设备指示UE已完成第二小区的成功接入且第二小区可以稳定通信，从而第一网络设备可以进行数据传输通路的切换，即切换至在第二小区中进行数据传输，如此，可以避免发生数据中断和频繁掉网/断网的问题，从而可以保证UE数据传输的稳定性和通信流畅度。
附图说明
图1为本发明实施例提供的一种通信系统的架构示意图；
图2为本发明实施例提供的一种小区接入方法的流程图之一；
图3为本发明实施例提供的一种小区接入方法的流程图之二；
图4为本发明实施例提供的一种UE的结构示意图；
图5为本发明实施例提供的一种网络设备的结构示意图；
图6为本发明实施例提供的一种UE的硬件示意图；
图7为本发明实施例提供的一种网络设备的硬件示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述对象的特定顺序。例如，第一阈值和第二阈值等是用于区别不同的阈值，而不是用于描述阈值的特定顺序。
在本发明实施例的描述中，除非另有说明，“多个”的含义是指两个或两个以上。例如，多个元件是指两个元件或两个以上元件。
本文中术语“和/或”，是一种描述关联对象的关联关系，表示可以存在三种关系，例如，显示面板和/或背光，可以表示：单独存在显示面板，同时存在显示面板和背光，单独存在背光这三种情况。本文中符号“/”表示关联对象是或者的关系，例如输入/输出表示输入或者输出。
在本发明实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
下面对本发明实施例提供的小区接入方法、设备及系统中涉及的一些概念和/或术语做一下解释说明。
非独立组网(NSA)的组网模式：5G网络的部署可以包括两个部分：无线接入网(radio access network，RAN)和核心网(core network)。无线接入网主要由基站组成，为用户提供无线接入功能。核心网则主要为用户提供互联网接入服务和相应的管理功能等。由于部署新的网络投资巨大且要分别部署这两部分，所以标准化组织3GPP(3rd generation partnership project)分为了两种方式进行部署SA(standalone，独立组网)和NSA(non-standalone，非独立组网)。独立组网指的是新建一个现有的网络，包括新基站、回程链路以及核心网，非独立组网指的是使用现有的4G基础设施，进行5G网络的部署。在 5G组网初期，NSA可以最大限度的利用已有4G网络的资源，达到快速部署5G的目的。4G基站(eNB)和5G基站(gNB)双链接，5G基站的控制面和用户面均由4G基站接入核心网设备，即5G基站的信令通过4G基站发送至UE。
本发明实施例提供一种小区接入方法、设备及系统，由于UE在成功接入第二小区之前，可以先向第一网络设备发送一个指示信息，以向第一网络设备指示UE还未完成第二小区的接入，从而第一网络设备可以不进行数据传输通路的切换，即继续保持在第一小区中进行数据传输，因此可以避免第二小区接入成功之前发生数据中断的问题；并且UE在成功接入第二小区之后，可以对第二小区进行判断，以确定第二小区是否能够稳定通信，从而在第二小区能够稳定通信的情况下，向第一网络设备发送一个指示信息，以向第一网络设备指示UE已完成第二小区的成功接入且第二小区可以稳定通信，从而第一网络设备可以进行数据传输通路的切换，即切换至在第二小区中进行数据传输，如此，可以避免发生数据中断和频繁掉网/断网的问题，从而可以保证UE数据传输的稳定性和通信流畅度。
本发明实施例提供的小区接入方法、设备及系统，可以应用于通信系统中。具体可以应用于基于该通信系统，UE在接入第一小区的情况下，接入第二小区的过程中。
示例性的，图1示出了本发明实施例提供的一种通信系统的架构示意图。如图1所示，该通信系统可以包括UE 01、网络设备02和网络设备03。其中，UE 01与网络设备02之间可以建立连接并通信，网络设备02与网络设备03之间可以建立连接并通信。
需要说明的是，上述如图1所示的网络设备02和网络设备03之间可以是无线连接。为了更加清楚的示意网络设备02和网络设备03之间的连接关系，图1是以实线示意网络设备02和网络设备03之间的连接关系的。
UE是一种向用户提供语音和/或数据连通性的设备，具有有线/无线连接功能的手持式设备，或连接到无线调制解调器的其它处理设备。UE可以经过RAN与一个或多个核心网设备进行通信。
本发明实施例中的UE可以是移动UE，也可以为非移动UE。示例性的，移动UE可以为移动电话(或称为“蜂窝”电话)和具有移动UE的计算机(例如平板电脑、笔记本电脑、掌上电脑等)，也可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与RAN交换语言和/或数据，例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)等设备。非移动UE可以为个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本发明实施例不作具体限定。
本发明实施例中的UE可以为具有操作系统的UE。该操作系统可以为安卓(Android) 操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本发明实施例不作具体限定。示例性的，安卓操作系统的架构包括4层，分别为：应用程序层、应用程序框架层、系统运行库层和内核层(具体可以为Linux内核层)。
其中，应用程序层包括安卓操作系统中的各个应用程序(包括系统应用程序和第三方应用程序)。应用程序框架层是应用程序的框架，开发人员可以在遵守应用程序的框架的开发原则的情况下，基于应用程序框架层开发一些应用程序。系统运行库层包括库(也称为系统库)和安卓操作系统运行环境。库主要为安卓操作系统提供其所需的各类资源。安卓操作系统运行环境用于为安卓操作系统提供软件环境。内核层是安卓操作系统的操作系统层，属于安卓操作系统软件层次的最底层。内核层基于Linux内核为安卓操作系统提供核心系统服务和与硬件相关的驱动程序。
以安卓操作系统为例，本发明实施例中，开发人员可以基于上述所述的安卓操作系统的系统架构，开发实现本发明实施例提供的小区接入方法的软件程序，从而使得该小区接入方法可以基于上述所述的安卓操作系统运行。即处理器或者UE可以通过在安卓操作系统中运行该软件程序实现本发明实施例提供的小区接入。
网络设备可以为基站(例如主基站或辅基站)。基站是一种部署在RAN中用于为UE提供无线通信功能的装置。基站可以包括各种形式的宏基站、微基站、中继站、接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如，网络设备02可以为长期演进(long term evolution，LTE)系统中的基站，可以称为演进型基站(evolved NodeB，eNB或eNodeB)，网络设备03可以为第五代移动通信(5G)网络中的基站，可以称为gNB。随着通信技术的演进，“基站”这一名称可能会发生变化。值得指出的是，本发明实施例仅以4G网络和5G网络作为示例性说明，但不应作为本发明实施例的场景限制。
需要说明的是，LTE基站和5G基站都连接在LTE核心网上，LTE基站为主基站(即MeNB)，5G基站为从基站(即SeNB)，LTE基站和5G基站通过Xx接口连接互连。控制面上S1-C终结在LTE基站，LTE基站和5G基站之间的控制面信息通过Xx-C接口进行交互。用户面在不同的双连接模式下，有不同的用户面协议架构。数据面无线承载可以由MeNB或者SeNB独立服务，也可以由MeNB和SeNB同时服务。
下面结合附图，通过具体的实施例及其应用场景对本发明实施例提供的一种小区接入方法、设备及系统进行详细地说明。
现有技术中，在UE接入4G小区的情况下，当UE尝试接入5G小区时，网络设备会重新配置数据传输通路(例如5G小区对应的数据传输通路)，即UE当前已断开4G网络的连接，而UE在尝试接入5G小区多次失败(例如小区信号较差)之后，才向网络设备 发送失败报告，然后网络设备才会再次重新配置数据传输通路(例如4G小区对应的数据传输通路)，因此会存在UE的网络连接中断，导致UE通信中断的问题。
为了解决上述技术问题，本发明实施例中，UE在成功接入5G小区之前，UE可以先向第一网络设备发送一个指示信息，告知第一网络设备当前UE还没有切换到5G网络对应的数据传输通路，以使得第一网络设备可以继续在4G网络对应的数据传输通路上向UE发送数据(即避免4G网络连接中断)，然后UE可以进行5G小区的随机接入过程，并且根据5G小区的一些网络参数(例如信号值、是否出现过无线链路失败等)进行小区评估，以在评估通过的情况下，向第一网络设备指示成功接入5G小区且可以正常通信，以使得第一网络设备可以从4G网络对应的数据传输通路切换至5G网络对应的数据传输通路进行数据的发送。如此，可以避免UE在成功接入5G小区之前，出现4G网络的连接中断的情况，从而可以保证UE和第一网络设备的数据传输的稳定性。
基于如图1所示的通信系统，本发明实施例提供一种小区接入方法，如图2所示，该小区接入方法可以包括下述的步骤201至步骤206。
步骤201、在UE接入第一小区的情况下，第一网络设备向UE发送第二小区的配置信息。
本发明实施例中，上述第二小区的配置信息用于UE接入第二小区。上述第一小区为第一网络设备的服务小区，上述第二小区为与第一网络设备连接的第二网络设备的服务小区。
本发明实施例中，UE可以进行第一小区的搜索，并在搜索到第一小区的情况下，向第一网络设备(例如LTE基站)发送附着请求；第一网络设备在接收到附着请求之后，可以向UE发送能力请求(用于请求查询UE的能力)，以使得UE向第一网络设备上报UE的能力；第一网络设备可以根据UE的能力向UE发送附着响应，从而UE接入第一小区。
本发明实施例中，在UE接入第一小区的情况下，第一网络设备(例如LTE基站)可以在第一小区向UE下发第二小区的测量指示；UE在接收到测量指示之后，可以进行第二小区的搜索(读取物理广播信道(physical broadcast channel，PBCH))，并在搜索到第二小区的情况下，对第二小区进行测量，然后UE可以向第一网络设备上报测量结果(即对第二小区测量后的结果)；第一网络设备在接收到测量结果之后，可以向第二网络设备(例如5G基站)发送第二小区添加请求(也可以称为第二小区接入请求)，从而该第二网络设备可以向第一网络设备发送第二小区的小区信息和承载信息等，然后第一网络设备可以向UE发送第二小区的上/下行配置信息，以使得UE可以进行第二小区的尝试接入。
可选的，本发明实施例中，结合图2，如图3所示，上述步骤201具体可以通过下述的步骤201a实现。
步骤201a、在UE接入第一小区的情况下，第一网络设备向UE发送重配置消息。
本发明实施例中，上述重配置消息中包括第二小区的配置信息。
可选的，本发明实施例中，上述重配置消息可以为无线资源控制(radio resource control，RRC)连接重配置消息。
可选的，本发明实施例中，上述第一小区可以为4G小区(也可以成为LTE小区)；上述第二小区可以为5G小区(也可以称为新技术(new radio，NR)小区)，例如该5G小区具体可以为5G辅小区组(secondary cell group，SCG)；上述第二小区的配置信息具体可以为5G SCG的配置信息。
步骤202、在UE接入第一小区的情况下，UE接收所述第一网络设备发送的第二小区的配置信息。
可选的，本发明实施例中，结合图2，如图3所示，上述步骤202具体可以通过下述的步骤202a实现。
步骤202a、在UE接入第一小区的情况下，UE接收第一网络设备发送的重配置消息。
步骤203、UE根据第二小区的配置信息，向第一网络设备发送第一指示信息，并执行第二小区的接入过程。
本发明实施例中，上述第一指示信息用于指示UE未完成第二小区的接入/添加，上述第一指示信息用于第一网络设备保持在第一小区中进行数据传输。
可选的，本发明实施例中，结合图2，如图3所示，上述步骤203具体可以通过下述的步骤203a实现。
步骤203a、UE根据第二小区的配置信息，向第一网络设备发送重配置完成消息，并执行第二小区的接入过程。
本发明实施例中，上述重配置完成消息中包括第一指示信息。
本发明实施例中，UE可以检查重配置消息(即重配置消息中的第二小区的配置信息)是否正常(即检查第一网络设备是否配置了异常的参数)，并在重配置消息正常的情况下，向第一网络设备发送重配置完成消息，并在该重配置完成消息中携带第一指示信息。
可选的，本发明实施例中，上述重配置完成消息可以为RRC连接重配置完成(RRC connection reconfiguration complete)消息。
可选的，本发明实施例中，上述第一指示信息可以为布尔类型(boolean)字段，且布尔类型字段的取值为第一值。
可选的，本发明实施例中，上述第一指示信息的取值可以为与第一网络设备约定的，具体可以为true，当第一网络设备接收到的字段为true时，第一网络设备可以获知UE未完成第二小区的接入。当然，上述第一指示信息的取值也可以为其他值(例如false)，具 体的可以根据实际使用需求确定，本发明实施例不作限制。
可选的，本发明实施例中，在UE已完成第二小区的接入的情况下，UE可以向第一网络设备发送一个指示信息(例如该指示信息的取值可以为false)，向第一网络设备指示UE已完成第二小区的接入，从而第一网络设备可以在第二小区中进行数据传输(即在新配置的上下行通道上发送数据)。
可选的，本发明实施例中，UE可以在第二小区进行随机接入，以实现第二小区的接入。
需要说明的是，上述第一指示信息也可以称为数据传输通路不变指示信息(例如SCG-configuration on going-r15指示)，用于向第一网络设备指示数据传输通路不变，即继续/保持在第一小区中进行数据传输。
可以理解，UE在成功接入第二小区之前，可以在重配置完成消息中添加第一指示信息，用于向第一网络设备告知UE当前对第二小区还没有添加完成，从而UE和第一网络设备可以继续在第一小区的上下行数据传输通路上传输数据。
步骤204、第一网络设备接收UE发送的第一指示信息，并根据第一指示信息，保持在第一小区中进行数据传输。
可选的，本发明实施例中，结合图2，如图3所示，上述步骤204具体可以通过下述的步骤204a实现。
步骤204a、第一网络设备接收UE发送的重配置完成消息，并根据第一指示信息，保持在第一小区中进行数据传输。
本发明实施例中，第一网络设备在接收到第一指示信息之后，可以获知UE当前还未完成第二小区的接入，因此第一网络设备可以不进行上下行数据传输通路的切换，继续在第一小区的上下行数据传输通路上传输数据。
步骤205、在UE成功接入第二小区、且第二小区满足预设条件的情况下，UE向第一网络设备发送第二指示信息。
本发明实施例中，上述第二指示信息用于指示UE已成功接入第二小区，上述第二指示信息用于第一网络设备将数据传输通路从第一小区切换至第二小区。
可以理解，UE在成功接入第二小区之后，可以在第二小区中(即在第二小区的上下行数据传输通路上)进行数据传输。
本发明实施例中，UE在成功接入第二小区之后，可以评估第二小区的网络情况，即判断第二小区是否满足预设条件，从而确定第二小区是否可以稳定通信。
可选的，本发明实施例中，上述预设条件可以包括以下至少一项：第二小区的参考信号接收功率(reference signal receiving power，RSRP)值大于或等于第一阈值(例如 -115dbm)；第二小区的参考信号接收质量(reference signal receiving quality，RSRQ)值大于或等于第二阈值；第二小区的信噪比(signal to noise ratio，SNR)大于或等于第三阈值(例如3db)；以及，第二小区在预设时长内未存在无线链路失败(radio link failure，RLF)。
可选的，本发明实施例中，上述RLF可以由以下至少一项导致：无线干扰、小区警告、网络设备故障、UE故障、无线网络覆盖弱、小区基站不同步、小区满负荷等。
可选的，本发明实施例中，结合图2，如图3所示，上述步骤205具体可以通过下述的步骤205a实现。
步骤205a、在UE成功接入第二小区、且第二小区满足预设条件的情况下，UE向第一网络设备发送小区接入完成指示消息。
本发明实施例中，上述小区接入完成指示消息中包括第二指示信息。
可选的，本发明实施例中，上述小区接入完成指示消息具体可以为SCG添加完成指示(SCG addition complete indication)消息。
可选的，本发明实施例中，上述第二指示信息可以为小区接入完成指示原因(SCG addition complete indication cause)字段，且小区接入完成指示原因字段的取值为第二值。
可选的，本发明实施例中，上述第二指示信息的取值可以为与第一网络设备约定的，具体可以为normal，当第一网络设备接收到的字段为normal时，第一网络设备可以获知UE已成功接入第二小区。当然，上述第二指示信息的取值也可以为其他值(例如fail)，具体的可以根据实际使用需求确定，本发明实施例不作限制。
可选的，本发明实施例中，在第二小区不满足预设条件的情况下，UE可以向第一网络设备发送一个指示信息(例如该指示信息的取值可以为fail)，向第一网络设备指示UE接入第二小区失败(即第二小区无法稳定通信)，从而第一网络设备释放第二小区，并继续在第一小区中进行数据传输。
可以理解，UE在成功接入第二小区之后，可以在小区接入完成指示消息中添加第二指示信息，用于向第一网络设备告知UE当前已成功接入第二小区，以使得第一网络设备可以将上下行数据传输通路切换到第二小区来进行数据传输。
步骤206、第一网络设备接收UE发送的第二指示信息，并根据第二指示信息，将数据传输通路从第一小区切换至第二小区。
可以理解，第一网络设备将数据传输通路从第一小区切换至第二小区之后，UE可以通过第二小区与第二网络设备进行数据交互。
本发明实施例中，第一网络设备在接收到第二指示信息之后，可以获知UE当前已完成第二小区的成功接入，因此第一网络设备可以进行上下行数据传输通路的切换，从第一 小区的上下行数据传输通路切换至第二小区的上下行数据传输通路，以通过第二网络设备实现上下行数据的传输。
可选的，本发明实施例中，结合图2，如图3所示，上述步骤206具体可以通过下述的步骤206a实现。
步骤206a、第一网络设备接收UE发送的小区接入完成指示消息，并根据第二指示信息，将数据传输通路从第一小区切换至第二小区。
可以理解，本发明实施例中，在5G NSA模式下，UE可以在添加第二小区(例如5G SCG)成功之前，可以通过发送指示信息给第一网络设备，使得第一网络设备继续保持着在第一小区(例如4G网络)的上下行数据传输通路与UE进行数据交互，避免了由于第二小区异常或第二小区信号不好等造成第二小区接入多次失败导致的数据中断的问题；并且，UE和第一网络设备之间构建了一个新的RRC消息，UE在成功接入第二小区之后，可以评估第二小区的状态，并通过该新的RRC消息发送指示信息给第一网络设备，以告知第二小区已添加成功且可以稳定通信，从而第一网络设备可以将上下行数据传输通路切换到第二小区的上下行数据传输通路；如此，避免了发生数据中断和频繁掉网/断网的问题，保证了UE数据传输的稳定性，提升了NSA模式下的通信流畅度。
本发明实施例提供一种小区接入方法，UE在接入第一小区的情况下，可以根据接收的第二小区的配置信息，向第一网络设备发送第一指示信息(指示UE未完成第二小区的接入)，并执行第二小区的接入过程，然后在UE成功接入第二小区、且第二小区满足预设条件的情况下，向第一网络设备发送第二指示信息(指示UE已成功接入第二小区)。由于UE在成功接入第二小区之前，可以先向第一网络设备发送一个指示信息，以向第一网络设备指示UE还未完成第二小区的接入，从而第一网络设备可以不进行数据传输通路的切换，即继续保持在第一小区中进行数据传输，因此可以避免第二小区接入成功之前发生数据中断的问题；并且UE在成功接入第二小区之后，可以对第二小区进行判断，以确定第二小区是否能够稳定通信，从而在第二小区能够稳定通信的情况下，向第一网络设备发送一个指示信息，以向第一网络设备指示UE已完成第二小区的成功接入且第二小区可以稳定通信，从而第一网络设备可以进行数据传输通路的切换，即切换至在第二小区中进行数据传输，如此，可以避免发生数据中断和频繁掉网/断网的问题，从而可以保证UE数据传输的稳定性和通信流畅度。
图4示出了本发明实施例中涉及的UE的一种可能的结构示意图。如图4所示，UE40可以包括：接收模块41、发送模块42和执行模块43。
其中，接收模块41，用于在UE接入第一小区的情况下，接收所述第一网络设备发送的第二小区的配置信息，该第一小区为第一网络设备的服务小区，该第二小区为与第一网 络设备连接的第二网络设备的服务小区。发送模块42，用于根据接收模块41接收的第二小区的配置信息，向第一网络设备发送第一指示信息，该第一指示信息用于指示UE未完成第二小区的接入，该第一指示信息用于第一网络设备保持在第一小区中进行数据传输。执行模块43，用于执行第二小区的接入过程。发送模块42，还用于在UE成功接入第二小区、且第二小区满足预设条件的情况下，向第一网络设备发送第二指示信息，该第二指示信息用于指示UE已成功接入第二小区，该第二指示信息用于第一网络设备将数据传输通路从第一小区切换至第二小区。
在一种可能的实现方式中，上述接收模块41，具体用于接收第一网络设备发送的重配置消息，该重配置消息中包括第二小区的配置信息。上述发送模块42，具体用于向第一网络设备发送重配置完成消息，该重配置完成消息中包括第一指示信息；并向第一网络设备发送小区接入完成指示消息，该小区接入完成指示消息中包括第二指示信息。
在一种可能的实现方式中，上述重配置消息可以为RRC连接重配置消息。
在一种可能的实现方式中，上述重配置完成消息可以为RRC连接重配置完成消息。
在一种可能的实现方式中，上述第一指示信息可以为布尔类型字段，且布尔类型字段的取值为第一值。
在一种可能的实现方式中，上述第二指示信息可以为小区接入完成指示原因字段，且小区接入完成指示原因字段的取值为第二值。
在一种可能的实现方式中，上述预设条件可以包括以下至少一项：第二小区的RSRP值大于或等于第一阈值；第二小区的RSRQ值大于或等于第二阈值；第二小区的SNR大于或等于第三阈值；以及，第二小区在预设时长内未存在RLF。
本发明实施例提供的UE能够实现上述方法实施例中UE实现的各个过程，为避免重复，详细描述这里不再赘述。
本发明实施例提供一种UE，由于UE在成功接入第二小区之前，可以先向第一网络设备发送一个指示信息，以向第一网络设备指示UE还未完成第二小区的接入，从而第一网络设备可以不进行数据传输通路的切换，即继续保持在第一小区中进行数据传输，因此可以避免第二小区接入成功之前发生数据中断的问题；并且UE在成功接入第二小区之后，可以对第二小区进行判断，以确定第二小区是否能够稳定通信，从而在第二小区能够稳定通信的情况下，向第一网络设备发送一个指示信息，以向第一网络设备指示UE已完成第二小区的成功接入且第二小区可以稳定通信，从而第一网络设备可以进行数据传输通路的切换，即切换至在第二小区中进行数据传输，如此，可以避免发生数据中断和频繁掉网/断网的问题，从而可以保证UE数据传输的稳定性和通信流畅度。
图5示出了本发明实施例中涉及的网络设备的一种可能的结构示意图，该网络设备为 第一网络设备。如图5所示，本发明实施例提供的网络设备50可以包括：发送模块51、接收模块52、保持模块53和切换模块54。
其中，发送模块51，用于在UE接入第一小区的情况下，向UE发送第二小区的配置信息，该第二小区的配置信息用于UE接入第二小区，该第一小区为第一网络设备的服务小区，该第二小区为与第一网络设备连接的第二网络设备的服务小区。接收模块52，用于接收UE发送的第一指示信息，该第一指示信息用于指示UE未完成第二小区的接入。保持模块53，用于根据接收模块52接收的第一指示信息，保持在第一小区中进行数据传输。接收模块52，还用于接收UE发送的第二指示信息，该第二指示信息用于指示UE已成功接入第二小区。切换模块54，用于根据接收模块52接收的第二指示信息，将数据传输通路从第一小区切换至第二小区。
在一种可能的实现方式中，上述发送模块51，具体用于向UE发送重配置消息，该重配置消息中包括第二小区的配置信息。上述接收模块52，具体用于接收UE发送的重配置完成消息，该重配置完成消息中包括第一指示信息；并接收UE发送的小区接入完成指示消息，该小区接入完成指示消息中包括第二指示信息。
在一种可能的实现方式中，上述重配置消息可以为RRC连接重配置消息。
在一种可能的实现方式中，上述重配置完成消息可以为RRC连接重配置完成消息。
在一种可能的实现方式中，上述第一指示信息可以为布尔类型字段，且布尔类型字段的取值为第一值。
在一种可能的实现方式中，上述第二指示信息可以为小区接入完成指示原因字段，且小区接入完成指示原因字段的取值为第二值。
本发明实施例提供的网络设备能够实现上述方法实施例中第一网络设备实现的各个过程，为避免重复，详细描述这里不再赘述。
本发明实施例提供一种网络设备，由于在UE成功接入第二小区之前，第一网络设备可以根据UE发送的一个指示信息(指示UE还未完成第二小区的接入)，不进行数据传输通路的切换，即继续保持在第一小区中进行数据传输，因此可以避免第二小区接入成功之前发生数据中断的问题；并且在UE成功接入第二小区之后，第一网络设备可以根据UE发送的一个指示信息(指示UE已完成第二小区的成功接入且第二小区可以稳定通信)，进行数据传输通路的切换，即切换至在第二小区中进行数据传输，如此，可以避免发生数据中断和频繁掉网/断网的问题，从而可以保证UE数据传输的稳定性和通信流畅度。
图6为实现本发明各个实施例的一种UE的硬件示意图。如图6所示，UE100包括但不限于：射频单元101、网络模块102、音频输出单元103、输入单元104、传感器105、显示单元106、用户输入单元107、接口单元108、存储器109、处理器110、以及电源111 等部件。
需要说明的是，本领域技术人员可以理解，图6中示出的UE结构并不构成对UE的限定，UE可以包括比图6所示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本发明实施例中，UE包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中，射频单元101，用于在UE接入第一小区的情况下，接收所述第一网络设备发送的第二小区的配置信息，该第一小区为第一网络设备的服务小区，该第二小区为与第一网络设备连接的第二网络设备的服务小区；并根据第二小区的配置信息，向第一网络设备发送第一指示信息，该第一指示信息用于指示UE未完成第二小区的接入，该第一指示信息用于第一网络设备保持在第一小区中进行数据传输。
处理器110，用于执行第二小区的接入过程。
射频单元101，还用于在UE成功接入第二小区、且第二小区满足预设条件的情况下，向第一网络设备发送第二指示信息，该第二指示信息用于指示UE已成功接入第二小区，该第二指示信息用于第一网络设备将数据传输通路从第一小区切换至第二小区。
本发明实施例提供一种UE，由于UE在成功接入第二小区之前，可以先向第一网络设备发送一个指示信息，以向第一网络设备指示UE还未完成第二小区的接入，从而第一网络设备可以不进行数据传输通路的切换，即继续保持在第一小区中进行数据传输，因此可以避免第二小区接入成功之前发生数据中断的问题；并且UE在成功接入第二小区之后，可以对第二小区进行判断，以确定第二小区是否能够稳定通信，从而在第二小区能够稳定通信的情况下，向第一网络设备发送一个指示信息，以向第一网络设备指示UE已完成第二小区的成功接入且第二小区可以稳定通信，从而第一网络设备可以进行数据传输通路的切换，即切换至在第二小区中进行数据传输，如此，可以避免发生数据中断和频繁掉网/断网的问题，从而可以保证UE数据传输的稳定性和通信流畅度。
应理解的是，本发明实施例中，射频单元101可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器110处理；另外，将上行的数据发送给基站。通常，射频单元101包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元101还可以通过无线通信系统与网络和其他设备通信。
UE通过网络模块102为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元103可以将射频单元101或网络模块102接收的或者在存储器109中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元103还可以提供与 UE100执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元103包括扬声器、蜂鸣器以及受话器等。
输入单元104用于接收音频或视频信号。输入单元104可以包括图形处理器(graphics processing unit，GPU)1041和麦克风1042，图形处理器1041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元106上。经图形处理器1041处理后的图像帧可以存储在存储器109(或其它存储介质)中或者经由射频单元101或网络模块102进行发送。麦克风1042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元101发送到移动通信基站的格式输出。
UE100还包括至少一种传感器105，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板1061的亮度，接近传感器可在UE100移动到耳边时，关闭显示面板1061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别UE姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器105还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元106用于显示由用户输入的信息或提供给用户的信息。显示单元106可包括显示面板1061，可以采用液晶显示器(liquid crystal display，LCD)、有机发光二极管(organic light-emitting diode，OLED)等形式来配置显示面板1061。
用户输入单元107可用于接收输入的数字或字符信息，以及产生与UE的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元107包括触控面板1071以及其他输入设备1072。触控面板1071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1071上或在触控面板1071附近的操作)。触控面板1071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器110，接收处理器110发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1071。除了触控面板1071，用户输入单元107还可以包括其他输入设备1072。具体地，其他输入设备1072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板1071可覆盖在显示面板1061上，当触控面板1071检测到在其 上或附近的触摸操作后，传送给处理器110以确定触摸事件的类型，随后处理器110根据触摸事件的类型在显示面板1061上提供相应的视觉输出。虽然在图6中，触控面板1071与显示面板1061是作为两个独立的部件来实现UE的输入和输出功能，但是在某些实施例中，可以将触控面板1071与显示面板1061集成而实现UE的输入和输出功能，具体此处不做限定。
接口单元108为外部装置与UE100连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元108可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到UE100内的一个或多个元件或者可以用于在UE100和外部装置之间传输数据。
存储器109可用于存储软件程序以及各种数据。存储器109可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器109可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器110是UE的控制中心，利用各种接口和线路连接整个UE的各个部分，通过运行或执行存储在存储器109内的软件程序和/或模块，以及调用存储在存储器109内的数据，执行UE的各种功能和处理数据，从而对UE进行整体监控。处理器110可包括一个或多个处理单元；可选的，处理器110可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器110中。
UE100还可以包括给各个部件供电的电源111(比如电池)，可选的，电源111可以通过电源管理系统与处理器110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，UE100包括一些未示出的功能模块，在此不再赘述。
可选的，本发明实施例还提供一种UE，包括如图6所示的处理器110，存储器109，存储在存储器109上并可在所述处理器110上运行的计算机程序，该计算机程序被处理器110执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本发明实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述方法实施例的各个过程，且能达到相同的技 术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等。
图7示出了本发明实施例提供的一种网络设备的硬件示意图。如图7所示，该网络设备130包括：处理器131、收发机132、存储器133、用户接口134和总线接口135。
收发机132，用于在UE接入第一小区的情况下，向UE发送第二小区的配置信息，该第二小区的配置信息用于UE接入第二小区，该第一小区为第一网络设备的服务小区，该第二小区为与第一网络设备连接的第二网络设备的服务小区；并接收UE发送的第一指示信息，该第一指示信息用于指示UE未完成第二小区的接入。
处理器131，用于根据第一指示信息，保持在第一小区中进行数据传输。
收发机132，还用于接收UE发送的第二指示信息，该第二指示信息用于指示UE已成功接入第二小区。
处理器131，还用于根据第二指示信息，将数据传输通路从第一小区切换至第二小区。
本发明实施例提供一种网络设备，由于在UE成功接入第二小区之前，第一网络设备可以根据UE发送的一个指示信息(指示UE还未完成第二小区的接入)，不进行数据传输通路的切换，即继续保持在第一小区中进行数据传输，因此可以避免第二小区接入成功之前发生数据中断的问题；并且在UE成功接入第二小区之后，第一网络设备可以根据UE发送的一个指示信息(指示UE已完成第二小区的成功接入且第二小区可以稳定通信)，进行数据传输通路的切换，即切换至在第二小区中进行数据传输，如此，可以避免发生数据中断和频繁掉网/断网的问题，从而可以保证UE数据传输的稳定性和通信流畅度。
其中，处理器131可以负责管理总线架构和通常的处理，处理器131可以用于读取和执行存储器133中的程序以实现处理功能以及对网络设备130的控制。存储器133可以存储处理器131在执行操作时所使用的数据。处理器131和存储器133可以是集成在一起的，也可以是独立设置的。
本发明实施例中，网络设备130还可以包括：存储在存储器133上并可在处理器131上运行的计算机程序，该计算机程序被处理器131执行时实现本发明实施例提供的方法的步骤。
在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器131代表的一个或多个处理器和存储器133代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本发明实施例不再对其进行进一步描述。总线接口135提供接口。收发机132可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装 置通信的单元。针对不同的UE，用户接口134还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
本发明实施例还提供一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，该计算机程序被如图7所示的处理器131执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如ROM、RAM、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台UE(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。

Claims (25)

  1. 一种小区接入方法，应用于用户设备UE，所述UE与第一网络设备连接，所述第一网络设备与第二网络设备连接，所述方法包括：
    在所述UE接入第一小区的情况下，接收所述第一网络设备发送的第二小区的配置信息，所述第一小区为所述第一网络设备的服务小区，所述第二小区为所述第二网络设备的服务小区；
    根据所述第二小区的配置信息，向所述第一网络设备发送第一指示信息，并执行所述第二小区的接入过程，所述第一指示信息用于指示所述UE未完成所述第二小区的接入，所述第一指示信息用于所述第一网络设备保持在所述第一小区中进行数据传输；
    在所述UE成功接入所述第二小区、且所述第二小区满足预设条件的情况下，向所述第一网络设备发送第二指示信息，所述第二指示信息用于指示所述UE已成功接入所述第二小区，所述第二指示信息用于所述第一网络设备将数据传输通路从所述第一小区切换至所述第二小区。
  2. 根据权利要求1所述的方法，其中，所述接收所述第一网络设备发送的第二小区的配置信息，包括：
    接收所述第一网络设备发送的重配置消息，所述重配置消息中包括所述第二小区的配置信息；
    所述向所述第一网络设备发送第一指示信息，包括：
    向所述第一网络设备发送重配置完成消息，所述重配置完成消息中包括所述第一指示信息；
    所述向所述第一网络设备发送第二指示信息，包括：
    向所述第一网络设备发送小区接入完成指示消息，所述小区接入完成指示消息中包括所述第二指示信息。
  3. 根据权利要求1或2所述的方法，其中，所述第一指示信息为布尔类型字段，且所述布尔类型字段的取值为第一值。
  4. 根据权利要求1或2所述的方法，其中，所述第二指示信息为小区接入完成指示原因字段，且所述小区接入完成指示原因字段的取值为第二值。
  5. 根据权利要求1所述的方法，其中，所述预设条件包括以下至少一项：
    所述第二小区的参考信号接收功率RSRP值大于或等于第一阈值；
    所述第二小区的参考信号接收质量RSRQ值大于或等于第二阈值；
    所述第二小区的信噪比SNR大于或等于第三阈值；以及，
    所述第二小区在预设时长内未存在无线链路失败RLF。
  6. 一种小区接入方法，应用于第一网络设备，所述方法包括：
    在用户设备UE接入第一小区的情况下，向所述UE发送第二小区的配置信息，所述第二小区的配置信息用于所述UE接入所述第二小区，所述第一小区为所述第一网络设备的服务小区，所述第二小区为与所述第一网络设备连接的第二网络设备的服务小区；
    接收所述UE发送的第一指示信息，并根据所述第一指示信息，保持在所述第一小区中进行数据传输；其中，所述第一指示信息用于指示所述UE未完成所述第二小区的接入；
    接收所述UE发送的第二指示信息，并根据所述第二指示信息，将数据传输通路从所述第一小区切换至所述第二小区；其中，所述第二指示信息用于指示所述UE已成功接入所述第二小区。
  7. 根据权利要求6所述的方法，其中，所述向所述UE发送第二小区的配置信息，包括：
    向所述UE发送重配置消息，所述重配置消息中包括所述第二小区的配置信息；
    所述接收所述UE发送的第一指示信息，包括：
    接收所述UE发送的重配置完成消息，所述重配置完成消息中包括所述第一指示信息；
    所述接收所述UE发送的第二指示信息，包括：
    接收所述UE发送的小区接入完成指示消息，所述小区接入完成指示消息中包括所述第二指示信息。
  8. 根据权利要求6或7所述的方法，其中，所述第一指示信息为布尔类型字段，且所述布尔类型字段的取值为第一值。
  9. 根据权利要求6或7所述的方法，其中，所述第二指示信息为小区接入完成指示原因字段，且所述小区接入完成指示原因字段的取值为第二值。
  10. 一种用户设备UE，所述UE包括：接收模块、发送模块和执行模块；
    所述接收模块，用于在所述UE接入第一小区的情况下，接收第一网络设备发送的第二小区的配置信息，所述第一小区为所述第一网络设备的服务小区，所述第二小区为与所述第一网络设备连接的第二网络设备的服务小区；
    所述发送模块，用于根据所述接收模块接收的所述第二小区的配置信息，向所述第一网络设备发送第一指示信息，所述第一指示信息用于指示所述UE未完成所述第二小区的接入，所述第一指示信息用于所述第一网络设备保持在所述第一小区中进行 数据传输；
    所述执行模块，用于执行所述第二小区的接入过程；
    所述发送模块，还用于在所述UE成功接入所述第二小区、且所述第二小区满足预设条件的情况下，向所述第一网络设备发送第二指示信息，所述第二指示信息用于指示所述UE已成功接入所述第二小区，所述第二指示信息用于所述第一网络设备将数据传输通路从所述第一小区切换至所述第二小区。
  11. 根据权利要求10所述的UE，其中，所述接收模块，具体用于接收所述第一网络设备发送的重配置消息，所述重配置消息中包括所述第二小区的配置信息；
    所述发送模块，具体用于向所述第一网络设备发送重配置完成消息，所述重配置完成消息中包括所述第一指示信息；并向所述第一网络设备发送小区接入完成指示消息，所述小区接入完成指示消息中包括所述第二指示信息。
  12. 根据权利要求10或11所述的UE，其中，所述第一指示信息为布尔类型字段，且所述布尔类型字段的取值为第一值。
  13. 根据权利要求10或11所述的UE，其中，所述第二指示信息为小区接入完成指示原因字段，且所述小区接入完成指示原因字段的取值为第二值。
  14. 根据权利要求10所述的UE，其中，所述预设条件包括以下至少一项：
    所述第二小区的参考信号接收功率RSRP值大于或等于第一阈值；
    所述第二小区的参考信号接收质量RSRQ值大于或等于第二阈值；
    所述第二小区的信噪比SNR大于或等于第三阈值；以及，
    所述第二小区在预设时长内未存在无线链路失败RLF。
  15. 一种网络设备，所述网络设备为第一网络设备，所述第一网络设备包括：发送模块、接收模块、保持模块和切换模块；
    所述发送模块，用于在用户设备UE接入第一小区的情况下，向所述UE发送第二小区的配置信息，所述第二小区的配置信息用于所述UE接入所述第二小区，所述第一小区为所述第一网络设备的服务小区，所述第二小区为与所述第一网络设备连接的第二网络设备的服务小区；
    所述接收模块，用于接收UE发送的第一指示信息，所述第一指示信息用于指示所述UE未完成所述第二小区的接入；
    所述保持模块，用于根据所述接收模块接收的所述第一指示信息，保持在所述第一小区中进行数据传输；
    所述接收模块，还用于接收所述UE发送的第二指示信息，所述第二指示信息用于指示所述UE已成功接入所述第二小区；
    所述切换模块，用于根据所述接收模块接收的所述第二指示信息，将数据传输通路从所述第一小区切换至所述第二小区。
  16. 根据权利要求15所述的网络设备，其中，所述发送模块，具体用于向所述UE发送重配置消息，所述重配置消息中包括所述第二小区的配置信息；
    所述接收模块，具体用于接收所述UE发送的重配置完成消息，所述重配置完成消息中包括所述第一指示信息；并接收所述UE发送的小区接入完成指示消息，所述小区接入完成指示消息中包括所述第二指示信息。
  17. 根据权利要求15或16所述的网络设备，其中，所述第一指示信息为布尔类型字段，且所述布尔类型字段的取值为第一值。
  18. 根据权利要求15或16所述的网络设备，其中，所述第二指示信息为小区接入完成指示原因字段，且所述小区接入完成指示原因字段的取值为第二值。
  19. 一种用户设备UE，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至5中任一项所述的小区接入方法的步骤。
  20. 一种网络设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求6至9中任一项所述的小区接入方法的步骤。
  21. 一种通信系统，所述通信系统包括如权利要求10至14中任一项所述的用户设备UE，以及如权利要求15至18中任一项所述的网络设备；或者，
    所述通信系统包括如权利要求19所述的UE以及如权利要求20所述的网络设备。
  22. 一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如权利要求1至5中任一项所述的小区接入方法的步骤，或者如权利要求6至9中任一项所述的小区接入方法的步骤。
  23. 一种计算机程序产品，所述程序产品被至少一个处理器执行以实现如权利要求1至5中任一项所述的小区接入方法，或者实现如权利要求6至9中任一项所述的小区接入方法。
  24. 一种用户设备UE，包括所述UE被配置成用于执行如权利要求1至5中任一项所述的小区接入方法。
  25. 一种网络设备，包括所述网络设备被配置成用于执行如权利要求6至9中任一项所述的小区接入方法。
PCT/CN2021/087692 2020-04-17 2021-04-16 小区接入方法、设备及系统 Ceased WO2021209026A1 (zh)

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