CN111356134A

CN111356134A - Communication method and device

Info

Publication number: CN111356134A
Application number: CN201811590745.2A
Authority: CN
Inventors: 张宏平; 胡星星; 曾清海
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-06-30
Anticipated expiration: 2038-12-20
Also published as: CN111356134B; WO2020125579A1

Abstract

The application provides a method and a device for anonymous communication: the network equipment sends indication information to the terminal equipment to indicate the terminal equipment to report data needing to be transmitted in an anonymous mode; the terminal equipment determines to establish anonymous Radio Resource Control (RRC) connection with the network equipment by analyzing the indication information, the network equipment does not interact with a core network, does not identify the identity of a user or does not authenticate or authenticate the terminal equipment; after establishing anonymous RRC connection with the network device, the terminal device sends data to be transmitted in an anonymous mode to the network device, so that the safety and privacy of a user can be protected.

Description

Communication method and device

Technical Field

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

Background

The operator needs to perform mobile network quality evaluation work, including identifying coverage intensity, coverage holes and the like, and the previous method mainly adopts a manual driving drive test mode and a main working method: firstly, determining a test area and designing a test route; then collecting measurement data including position information, physical layer, media access control layer, signaling information, system information and the like; and finally, carrying out acquisition post-processing, which mainly comprises data analysis and problem positioning analysis. The data analysis is mainly defined according to network performance indicators, for example, Key Performance Indicators (KPIs) and the like, and analyzes performances such as call drop rate, call completing rate, traffic and the like. Problem location mainly refers to determining whether a fault is located in a terminal device or a network device, and possibly causes, etc. by combining measurement parameters (such as signal strength, etc.) and signaling messages.

The manual drive road test method is time-consuming and labor-consuming, the third generation partnership project (3 GPP) standardization organization researches and standardizes the Minimization of Drive Tests (MDT) technology in a Long Term Evolution (LTE) system, and the MDT technology is a technology for realizing automatic acquisition and analysis of measurement reports containing position information by a communication system, is used for reducing the workload of manual road test, reducing the cost of network equipment maintenance, and simultaneously solves the problems of instantaneity and universality in the mobile network quality evaluation work.

In the MDT technology, terminal equipment is required to report MDT data, and because the MDT data carries location information, which relates to the safety and privacy problems of users, there may be a huge admission risk, so how to protect the safety and privacy of users while reporting the MDT data becomes an urgent problem to be solved.

Disclosure of Invention

The application provides a communication scheme which is beneficial to protecting the safety and the privacy of users.

In a first aspect, a communication method is provided, and the method includes: the terminal equipment receives first indication information from the network equipment, wherein the first indication information is used for indicating the reporting of first data; the terminal equipment determines to establish anonymous Radio Resource Control (RRC) connection with the network equipment according to the first indication information; and after establishing the anonymous RRC connection with the network equipment, the terminal equipment sends the first data to the network equipment.

According to the communication method, the network equipment issues the first indication information to indicate the terminal equipment to report the data which needs to be transmitted in an anonymous mode, and the terminal equipment can report the data which needs to be transmitted in the anonymous mode after confirming that the terminal equipment establishes the anonymous RRC connection with the network equipment, so that the safety and the privacy of a user can be protected.

In some possible implementations, the first data includes data that needs to be transmitted anonymously.

It is to be understood that the terminal device sends the first data to the network device after establishing the anonymous RRC connection with the network device, and it is also to be understood that the terminal device sends the first data to the network device on the radio bearer of the anonymous RRC connection.

In some possible implementations, the radio bearer includes a data radio bearer DRB and/or a signaling radio bearer SRB.

In this embodiment of the application, after learning that the terminal device determines to establish an anonymous RRC connection, or after establishing the RRC connection for anonymous data transmission, the network device may not establish a connection with the terminal device of the core network, for example, without interacting with the core network, without identifying the identity of the user, or without authenticating or authenticating the terminal device, but directly perform anonymous data transmission over the air interface without identifying the identity of the user.

With reference to the first aspect, in some possible implementation manners of the first aspect, the receiving, by the terminal device, first indication information from a network device includes: the terminal device receives a paging message from the network device, wherein the paging message comprises the first indication information.

The communication method of the embodiment of the application is beneficial to the terminal equipment to determine whether anonymous RRC connection needs to be initiated or not by carrying the first indication information in the paging message.

With reference to the first aspect, in some possible implementation manners of the first aspect, the receiving, by the terminal device, first indication information from a network device includes: the terminal device receives second indication information from the network device, wherein the second indication information is used for indicating content change of a system message, or the second indication information is used for indicating that the system message carries the first indication information; the terminal device receives a system message from the network device, wherein the system message comprises the first indication information.

The communication method of the embodiment of the application is beneficial to the terminal equipment to determine whether anonymous RRC connection needs to be initiated or not by carrying the first indication information in the system message.

With reference to the first aspect, in some possible implementation manners of the first aspect, the second indication information is a short message field in the downlink control information DCI.

With reference to the first aspect, in some possible implementation manners of the first aspect, the first indication information is used to indicate that the terminal device reports the stored first data; before the terminal device receives the first indication information from the network device, the method further includes: the terminal device stores the first data.

In some possible implementations, the first indication information may further include information indicating a type of the anonymously transmitted data that needs to be reported.

In the communication method of the embodiment of the application, when the network device needs to collect data that needs to be transmitted in an anonymous manner and is already stored by the terminal device, the network device may send the first indication information to the terminal device, so that the terminal device reports the data through an anonymous RRC connection.

With reference to the first aspect, in some possible implementation manners of the first aspect, before the terminal device sends the first data to the network device, the method further includes: the terminal equipment receives first configuration information from the network equipment; and after establishing the anonymous RRC connection with the network equipment, the terminal equipment performs measurement according to the first configuration information to obtain the first data.

In some possible implementations, the first configuration information is immediate MDT measurement configuration information.

In the communication method of the embodiment of the application, when the network device needs to collect data measured by the terminal device according to the first configuration information, the first indication information may be sent to the terminal device, so that the terminal device reports the data through an anonymous RRC connection.

With reference to the first aspect, in some possible implementation manners of the first aspect, before the terminal device sends the first data to the network device, the method further includes: the terminal equipment receives second configuration information from the network equipment; the terminal equipment releases the anonymous RRC connection to enter an idle state; the terminal device measures in the idle state according to the second configuration information to obtain the first data; the terminal device establishes the anonymous RRC connection with the network device.

In some possible implementations, before the terminal device determines to establish the anonymous RRC connection with the network device, the method further includes: the terminal device receives the second configuration information sent by the network device; and the terminal equipment is in an idle state, and measures according to the second configuration information to obtain the first data.

In the communication method of the embodiment of the application, before the terminal device establishes the anonymous RRC connection with the network device, the network device sends the first indication information and the second configuration information to the terminal device, which is helpful for avoiding switching between a connection state and an idle state of the terminal device, and is also helpful for saving signaling overhead.

With reference to the first aspect, in some possible implementation manners of the first aspect, before the terminal device sends the first data to the network device, the method further includes: the terminal device receives third indication information from the network device, wherein the third indication information is used for indicating the first public key; the terminal equipment encrypts the first data according to the first public key.

With reference to the first aspect, in some possible implementation manners of the first aspect, the third indication information is carried in a security mode command message or a system message.

The communication method of the embodiment of the application provides an air interface protection mechanism during anonymous communication, and the network device can send the public key of the network device to the terminal device, so that the terminal device is facilitated to encrypt and protect data which needs to be transmitted in an anonymous mode.

With reference to the first aspect, in some possible implementation manners of the first aspect, the determining, by the terminal device, to establish an anonymous RRC connection with the network device according to the first indication information includes: the terminal equipment determines that the terminal equipment is selected according to the configuration information selected by the user; determining to establish the anonymous RRC connection with the network device in the event that the terminal device is selected.

In some possible implementations, the first indication information includes two fields, one field is used for indicating reporting of the first data, and the other field is used for selecting the configuration information.

In some possible implementations, the first indication information includes a field, where the field is user selection configuration information, and the user selection configuration information may implicitly instruct the terminal device to report the first data,

in some possible implementations, the user-selected configuration information does not include information of a specific terminal device, for example, the information of the terminal device is identification information of the terminal device.

With reference to the first aspect, in some possible implementations of the first aspect, the user selection configuration information includes probability information of being selected and/or a selection condition.

With reference to the first aspect, in some possible implementation manners of the first aspect, the determining, by the terminal device according to the user selection configuration information, that the terminal device is selected includes: the terminal equipment acquires a random value; and under the condition that the random value and the probability information meet preset conditions, determining that the terminal equipment is selected.

In some possible implementations, the probability information is a probability value that is selected or a probability value that is not selected.

According to the communication method, the probability information is carried in the user selection configuration information, so that the terminal equipment is helped to determine whether the terminal equipment is selected to establish anonymous RRC connection with the network equipment.

With reference to the first aspect, in some possible implementation manners of the first aspect, the determining, by the terminal device according to the user selection configuration information, that the terminal device is selected includes: in a case where the terminal device is located in the first area, it is determined that the terminal device is selected.

According to the communication method provided by the embodiment of the application, the user selection configuration information carries the position information of the first area, so that the terminal equipment is facilitated to determine whether the terminal equipment is selected to establish anonymous RRC connection with the network equipment or not according to the current position of the terminal equipment and the position of the first area.

With reference to the first aspect, in some possible implementation manners of the first aspect, the determining, by the terminal device according to the user selection configuration information, that the terminal device is selected includes: determining that the terminal equipment is selected under the condition that the terminal equipment is determined to be the first type of terminal equipment according to the user selection configuration information; the first type of terminal equipment comprises one or more of terminal equipment signed by MDT, terminal equipment insensitive to energy, terminal equipment of the Internet of things or terminal equipment storing certain type of MDT data.

In some possible implementations, the energy insensitive end device may be a fixed location end device, e.g., an end device that is always connected to power or is being charged.

In some possible implementations, the terminal device storing some kind of MDT data may be a terminal device storing a failure MDT log, or a terminal device storing a periodic MDT log, or the like.

According to the communication method, the information of the first type of terminal equipment is carried in the user selection configuration information, so that the terminal equipment can determine whether the terminal equipment is selected to establish anonymous RRC connection with the network equipment or not according to the current state of the terminal equipment and the information of the first type of terminal equipment.

According to the communication method, the first indication information carries the user selection configuration information, so that the terminal device can be helped to determine whether to establish anonymous RRC connection with the network device, and the network device can select proper terminal devices to report the first data by setting the user selection configuration information.

With reference to the first aspect, in some possible implementation manners of the first aspect, the determining, by the terminal device, to establish an anonymous RRC connection with the network device according to the first indication information includes: and under the condition that the terminal equipment meets the reporting condition of the first data, determining to establish the anonymous RRC connection with the network equipment.

In some possible implementations, the first indication information may further include information of a type of the first data.

With reference to the first aspect, in some possible implementation manners of the first aspect, before the terminal device determines to establish an anonymous radio resource control RRC connection with the network device according to the first indication information, the method further includes: determining that a first timer expires, wherein a state of the first timer is used for the terminal device to determine whether to establish the anonymous RRC connection with the network device.

In this embodiment of the present application, the state of the first timer may be used for a terminal device to determine whether to establish the anonymous RRC connection with a network device, and the terminal device may establish the anonymous RRC connection with the network device when the first timer is not running; with the first timer running, the terminal device may not establish the anonymous RRC connection with the network device.

With reference to the first aspect, in some possible implementation manners of the first aspect, after the terminal device determines to establish an anonymous radio resource control RRC connection with the network device according to the first indication information, the method further includes: the terminal device starts the first timer.

In some possible implementations, the first indication information may further include information for a duration of the first timer.

In some possible implementations, the timing when the terminal device starts the first timer includes but is not limited to: when the terminal equipment determines to establish anonymous RRC connection with the network equipment; or, when the terminal device and the network device establish the anonymous RRC connection; or, the terminal device starts or finishes sending the first data to the network device; or when the terminal equipment releases the anonymous RRC connection.

According to the communication method, the terminal equipment can be prevented from frequently transmitting data through the timer mechanism, and therefore power consumption of the terminal equipment is saved.

In some possible implementations, the first indication information may further include delayed establishment configuration information, where the delayed establishment configuration information is used for the terminal device to determine a time point of the anonymous RRC connection establishment.

In the communication method according to the embodiment of the present application, by carrying the delay establishment configuration information in the first indication information, when a plurality of terminal devices are all to establish anonymous RRC connection with the network device, the plurality of terminal devices are facilitated to establish connection with the network device at different time points, which is conducive to reducing signaling impact on the network.

In some possible implementations, before the terminal device determines to establish the anonymous RRC connection with the network device, the method further includes: the terminal device determines to be in an idle state or a deactivated dynamic state.

With reference to the first aspect, in some possible implementations of the first aspect, the first data includes minimization of drive tests, MDT, data.

In a second aspect, a communication method is provided, the method comprising: the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating to report first data; the network equipment receives request information sent by the terminal equipment, wherein the request information is used for requesting to establish anonymous RRC connection with the network equipment; the network equipment establishes anonymous RRC connection with the terminal equipment according to the request information; and after establishing the anonymous RRC connection with the terminal equipment, the network equipment receives the first data sent by the terminal equipment.

With reference to the second aspect, in some possible implementation manners of the second aspect, the sending, by the network device, the first indication information to the terminal device includes: the network equipment sends a paging message to the terminal equipment, wherein the paging message comprises the first indication information.

With reference to the second aspect, in some possible implementation manners of the second aspect, the sending, by the network device, the first indication information to the terminal device includes: the network device sends second indication information to the terminal device, wherein the second indication information is used for indicating the content change of the system message, or the second indication information is used for indicating the system message to carry the first indication information; the network equipment sends a system message to the terminal equipment, wherein the system message comprises the first indication information.

With reference to the second aspect, in some possible implementation manners of the second aspect, the second indication information is a short message field in the downlink control information DCI.

With reference to the second aspect, in some possible implementation manners of the second aspect, the first indication information is used to indicate that the terminal device reports the saved first data.

With reference to the second aspect, in some possible implementation manners of the second aspect, before the network device receives the first data sent by the terminal device, the method further includes: the network equipment sends first configuration information to the terminal equipment; the first data includes data measured according to the first configuration information after the terminal device establishes the anonymous RRC connection with the network device.

With reference to the second aspect, in some possible implementation manners of the second aspect, before the network device receives the first data sent by the terminal device, the method further includes: the network equipment sends second configuration information to the terminal equipment; and the first data comprises data measured by the terminal equipment in an idle state according to the second configuration information.

With reference to the second aspect, in some possible implementation manners of the second aspect, before the network device receives the first data sent by the terminal device, the method further includes: the network device sends third indication information to the terminal device, wherein the third indication information is used for indicating a first public key, and the first public key is used for the terminal device to encrypt the first data.

With reference to the second aspect, in some possible implementations of the second aspect, the third indication information is a security mode command message or a system message.

With reference to the second aspect, in some possible implementation manners of the second aspect, the first indication information includes a reporting condition of the first data.

With reference to the second aspect, in some possible implementations of the second aspect, the first data includes minimization of drive tests, MDT, data.

In a third aspect, a communication device is provided for performing the method of the first aspect or any one of its possible implementations. The communication device may exemplarily comprise means for performing the method of the first aspect or any one of its possible implementations.

In a fourth aspect, a communication device is provided for performing the method of the second aspect or any one of its possible implementations. Illustratively, the communication device may comprise means for performing the method of the second aspect or any one of its possible implementations.

In a fifth aspect, a communication apparatus is provided, which may be a terminal device designed for the method described above, or a chip configured in the terminal device. The device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the terminal device in the first aspect or any one of the possible implementations of the first aspect. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

When the apparatus is a terminal device, the communication interface may be a transceiver, or an input/output interface.

When the apparatus is a chip configured in a terminal device, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a sixth aspect, a communication apparatus is provided, which may be a network device designed for the method described above, or a chip disposed in the network device. The device includes: a processor, coupled to the memory, may be configured to execute the instructions in the memory to implement the method performed by the network device in the second aspect or any one of its possible implementations. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

When the apparatus is a network device, the communication interface may be a transceiver, or an input/output interface.

When the apparatus is a chip configured in a network device, the communication interface may be an input/output interface.

In a seventh aspect, a program is provided, which, when executed by a processor, is configured to perform the method provided in the first or second aspect.

In an eighth aspect, a program product is provided, the program product comprising: program code which, when executed by a communication unit, a processing unit or a transceiver, a processor of an apparatus (e.g. a terminal device or a network device), causes the apparatus to perform any of the methods of the first to second aspects and possible embodiments thereof described above.

In a ninth aspect, there is provided a computer readable medium storing a program for causing an apparatus (e.g., a terminal device or a network device) to perform the method of any one of the first to second aspects and possible embodiments thereof.

Drawings

Fig. 1 is a schematic diagram of an application scenario of the technical solution provided in the embodiment of the present application.

Fig. 2 is a schematic diagram of a network architecture according to an embodiment of the present application.

Fig. 3 is a schematic diagram of another network architecture provided in the embodiment of the present application.

Fig. 4 is a schematic flow chart of a communication method provided in an embodiment of the present application.

Fig. 5 is a schematic flow chart of another communication method provided in the embodiments of the present application.

Fig. 6 is a schematic flow chart of another communication method provided in the embodiments of the present application.

Fig. 7 is a schematic flow chart of another communication method provided in the embodiments of the present application.

Fig. 8 is a schematic flow chart of another communication method provided in the embodiments of the present application.

Fig. 9 is a schematic flow chart of another communication method provided in the embodiments of the present application.

Fig. 10 is a schematic flow chart of another communication method provided in the embodiments of the present application.

Fig. 11 is a schematic flow chart of another communication method provided in the embodiments of the present application.

Fig. 12 is a schematic flow chart of another communication method provided in the embodiment of the present application.

Fig. 13 is a schematic flow chart of another communication method provided in the embodiment of the present application.

Fig. 14 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 15 is another schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 16 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Fig. 17 is a schematic structural diagram of a network device according to an embodiment of the present application.

Fig. 18 is another schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

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

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a fifth generation (5th generation, 5G) system or New Radio (NR), a subsequent evolution system, a fusion system of various communication systems, an internet of things system, an internet of vehicles system, and the like.

Terminal equipment in the embodiments of the present application may refer to user equipment, access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user devices. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment.

The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be an evolved NodeB (eNB or eNodeB) in an LTE system, and may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device (e.g., a gNB) in a future 5G network, or a network device in a future evolved PLMN network, and the like, and the embodiment of the present application is not limited.

The embodiment of the present application does not particularly limit a specific structure of an execution subject of the method provided by the embodiment of the present application, as long as the execution subject can communicate according to the method provided by the embodiment of the present application by running a program recorded with codes of the method provided by the embodiment of the present application, for example, the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is a schematic diagram of an application scenario of the technical solution provided in the embodiment of the present application, as shown in fig. 1, a terminal 130 accesses to a wireless network to obtain a service of an external network (e.g., the internet) through the wireless network, or communicates with other terminals through the wireless network. The wireless network includes a RAN110 and a Core Network (CN)120, where the RAN110 is used to access terminals 130 to the wireless network and the CN120 is used to manage the terminals and provide a gateway for communication with external networks.

It should be understood that the communication methods provided herein may be applicable to a wireless communication system, such as the wireless communication system 100 shown in fig. 1. Two communication devices in a wireless communication system have a wireless communication connection therebetween, and one of the two communication devices may correspond to the terminal 130 shown in fig. 1, and may be, for example, the terminal 130 in fig. 1, or may be a chip configured in the terminal 130; the other of the two communication devices may correspond to RAN110 shown in fig. 1, and may be RAN110 in fig. 1, or a chip configured in RAN110, for example.

Fig. 2 is a schematic diagram of a network architecture provided in an embodiment of the present application, and as shown in fig. 2, the network architecture includes a CN device and a RAN device. The RAN device includes a baseband device and a radio frequency device, where the baseband device may be implemented by one node or by multiple nodes, and the radio frequency device may be implemented independently by being pulled away from the baseband device, may also be integrated in the baseband device, or may be partially pulled away and partially integrated in the baseband device. For example, in an LTE communication system, a RAN equipment (eNB) includes a baseband device and a radio frequency device, where the radio frequency device may be remotely located with respect to the baseband device, e.g., a Remote Radio Unit (RRU) is remotely located with respect to a BBU.

The communication between the RAN equipment and the terminal follows a certain protocol layer structure. For example, the control plane protocol layer structure may include functions of protocol layers such as a Radio Resource Control (RRC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a physical layer. The user plane protocol layer structure can comprise functions of protocol layers such as a PDCP layer, an RLC layer, an MAC layer, a physical layer and the like; in one implementation, a Service Data Adaptation Protocol (SDAP) layer may be further included above the PDCP layer.

The RAN device may implement functions of protocol layers such as Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), and Media Access Control (MAC) by using one node; or the functions of these protocol layers may be implemented by multiple nodes; for example, in an evolved structure, a RAN device may include a Centralized Unit (CU) and a Distributed Unit (DU), and a plurality of DUs may be centrally controlled by one CU. As shown in fig. 2, the CU and the DU may be divided according to protocol layers of the radio network, for example, functions of a PDCP layer and above protocol layers are provided in the CU, and functions of protocol layers below the PDCP layer, for example, functions of an RLC layer and a MAC layer, are provided in the DU.

This division of the protocol layers is only an example, and it is also possible to divide the protocol layers at other protocol layers, for example, at the RLC layer, and the functions of the RLC layer and the protocol layers above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; alternatively, the functions are divided into some protocol layers, for example, a part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are provided in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are provided in the DU. In addition, the processing time may be divided in other manners, for example, by time delay, a function that needs to satisfy the time delay requirement for processing is provided in the DU, and a function that does not need to satisfy the time delay requirement is provided in the CU.

In addition, the radio frequency device may be pulled away, not placed in the DU, or integrated in the DU, or partially pulled away and partially integrated in the DU, which is not limited herein.

Referring to fig. 3, fig. 3 is a schematic diagram illustrating another network architecture provided in the embodiment of the present application, and with respect to the architecture shown in fig. 2, the Control Plane (CP) and the User Plane (UP) of a CU may be separated and implemented by being divided into different entities, namely, a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity), respectively.

In the above network architecture, the signaling generated by the CU may be transmitted to the terminal through the DU, or the signaling generated by the terminal may be transmitted to the CU through the DU. The DU may pass through the protocol layer encapsulation directly to the terminal or CU without parsing the signaling. In the following embodiments, if transmission of such signaling between the DU and the terminal is involved, in this case, the transmission or reception of the signaling by the DU includes such a scenario. For example, the signaling of the RRC or PDCP layer is finally processed as the signaling of the PHY layer to be transmitted to the terminal, or converted from the received signaling of the PHY layer. Under this architecture, the signaling of the RRC or PDCP layer can be considered to be sent by the DU, or sent by the DU and the radio frequency.

In the above embodiment, the CU is divided into the network devices on the RAN side, and in addition, the CU may also be divided into the network devices on the CN side, which is not limited herein.

The apparatus in the following embodiments of the present application may be located in a terminal according to the functions implemented by the apparatus. When the above structure of CU-DU is adopted, the network device may be a CU node, or a DU node, or a RAN device including the CU node and the DU node.

Before describing the technical solutions of the embodiments of the present application, several concepts related to the embodiments of the present application are first described.

Anonymous transmission: the terminal device transmits data to be transmitted in an anonymous mode to the network device in an anonymous mode, for example, anonymous connection is established, and network authentication and authentication of the terminal device are not needed. It is to be understood that the anonymous transmission may also be referred to as establishing an anonymous RRC connection, and may also be described as transmitting data in an anonymous manner, or may be described as transmitting anonymous data, or may also be described as transmitting MDT data when the anonymous data includes MDT data, and the like, which is not limited in this embodiment of the present application.

MDT data: when a driver has a drive test requirement, terminal equipment is selected to participate in MDT data reporting according to certain specific conditions, and the reported content is mainly data related to RAN and quality of service (QoS).

The MDT data can provide real-time network quality evaluation data for operators, and is helpful for timely finding network problems, optimizing networks and the like. Particularly, the function can greatly reduce the requirement of drive test and has great significance for reducing the operation cost.

Fig. 4 shows a schematic flow chart of a communication method 200 provided in an embodiment of the present application, and as shown in fig. 4, the method 200 includes:

s210, in the process of establishing an RRC connection with the network device, the terminal device sends request information to the network device, where the request information may be used to indicate that the RRC connection establishment is for anonymously transmitting data, or the indication information may be used to request establishment of an anonymous RRC connection.

Optionally, the request information does not carry identification information of the terminal device, or the request information does not carry identification information for identifying the user identity.

Optionally, the terminal device may send a first preamble sequence to the network device during a random access procedure, and after receiving the first preamble sequence, the network device determines that the terminal device establishes the RRC connection for anonymously transmitting data, or determines that the terminal device wishes to establish an anonymous RRC connection.

Optionally, the terminal device may carry request information in an RRC connection establishment request message or an RRC connection establishment completion message, where the request information is used to indicate that the terminal device establishes the RRC connection for anonymously transmitting data, or, in order to request to establish an anonymous RRC connection, the network device determines, after receiving the request information, that the terminal device establishes the RRC connection for anonymously transmitting data, or determines that the terminal device wishes to establish the anonymous RRC connection.

S220, the network device determines that the RRC connection established by the terminal device is for anonymous data transmission, and does not interact with the core network.

Specifically, after the network device knows that the transmission is anonymous, the network device may not establish a connection with a terminal device of a core network, for example, not interact with the core network, and not identify the identity of the user, or may not authenticate or authenticate the terminal device, and may directly perform the anonymous data transmission over the air interface without identifying the identity of the user, unlike the conventional RRC connection.

It should be understood that, the data or signaling reported by the terminal device to the network device does not carry the identification information of the terminal device, or the data or signaling reported by the terminal device to the network device does not carry the identification information for identifying the user identity, even if the connection is established between the network device and the core network device, the network device and the core network will not know the identity of the terminal device, so that the anonymous effect can be achieved.

S230, after establishing the RRC connection with the network device, the terminal device sends data to be transmitted anonymously to the network device.

Optionally, before sending the data that needs to be anonymously transmitted to the network device, the method 200 further includes:

s221, the network device sends an RRC reconfiguration message to the terminal device, and establishes a Data Radio Bearer (DRB) with the terminal device.

It should be understood that the RRC reconfiguration message includes an information element for setting up DRB, which is used to instruct the terminal device to set up DRB.

S222, the terminal device sends an RRC reconfiguration complete (RRC reconfiguration complete) message to the network device.

Optionally, after sending the data to be anonymously transferred to the network device, the method 200 further includes:

s231, the network device submits the data which needs to be transmitted in an anonymous mode to a specific protocol layer for processing;

s232, the terminal device sends a data transmission completion message to the network device, or the terminal device sends an RRC connection release request (RRC release request) message to the network device;

s233, the network device releases the anonymous RRC connection, and the terminal device enters an idle state.

Specifically, the network device may send an RRC connection release message to the terminal device, and after receiving the RRC connection release message, the terminal device disconnects the anonymous RRC connection, thereby entering an idle state.

Optionally, the data to be anonymously transferred includes MDT data.

It should be understood that, in this embodiment of the present application, the data that needs to be transmitted anonymously may be MDT data, or may also be other data, or may also be a combination of MDT data and other data, which is not limited in this embodiment of the present application.

It should also be understood that the method 200 only provides one possible implementation of the process of establishing the anonymous RRC connection between the terminal device and the network device, and the process of establishing the anonymous RRC connection between the terminal device and the network device is not limited to the above implementation and may be other possible implementations, which are not limited in this embodiment of the present application.

The communication method 200 provided by the embodiment of the present application is described above with reference to fig. 4, where the method 200 solves the problem of establishing an anonymous RRC connection between a terminal device and a network device, and the communication method 300 according to the embodiment of the present application is described below with reference to fig. 5, where the method 300 mainly solves the problem of how to select a terminal device for anonymous transmission because data transmission is performed in an anonymous manner.

Fig. 5 shows a schematic flow chart of a communication method 300 provided by an embodiment of the present application, and as shown in fig. 5, the method 300 includes:

s310, the network equipment sends first indication information to the terminal equipment.

The terminal device receives the first indication information sent by the network device, where the first indication information is used to indicate the terminal device to report first data.

The first data comprises data that needs to be transmitted anonymously.

Optionally, the first indication information may be carried in a paging message, a system message, or other messages.

Optionally, the first data comprises MDT data.

Optionally, before the network device sends the first indication information to the terminal device, the method 300 further includes:

the network device determines to collect the first data.

For example, the network device may determine that the first data needs to be collected within a time period or when a certain event triggers, and then send the first indication information to the terminal device.

For another example, the time period may be when the network device is lightly loaded at night, and the event trigger may be a sudden deterioration of the network quality in a certain area.

For another example, the network device may periodically collect the first data, and when a period for collecting the first data is entered, the network device transmits the first indication information to the terminal device.

S320, the terminal device determines to establish anonymous RRC connection with the network device according to the first indication information.

It can be understood that, after determining to establish an RRC connection with the network device, the terminal may perform a procedure of establishing an anonymous RRC connection, and the embodiment of the present application does not limit how to establish the anonymous RRC connection, for example, refer to the related description of the method 200.

Optionally, the first indication information includes user selection configuration information, where the user selection configuration information is used by the terminal device to determine whether the terminal device is selected, where determining, by the terminal device, to establish an anonymous RRC connection with the network device according to the first indication information includes:

the terminal equipment determines that the terminal equipment is selected according to the configuration information selected by the user;

and under the condition that the terminal device determines that the terminal device is selected, determining to establish the anonymous RRC connection with the network device.

In the embodiment of the present application, the reporting of the first data by the first indication information indication may be performed in two ways, that is, an implicit indication and an explicit indication:

explicit indication: the first indication information comprises two fields, one field is used for indicating to report the first data, and the other field is used for selecting configuration information for a user and is used for selecting whether to establish anonymous RRC connection with the network equipment or not by the terminal equipment.

Implicit indication: the first indication information includes a field, the field is configuration information selected by a user, and after receiving the first indication information, the terminal device can implicitly know that the network device wants to report the first data.

Optionally, the first indication information may include a field for indicating reporting of the first data, but does not include user-selected configuration information, and then the terminal device determines, according to the received first indication information, that the anonymous RRC connection needs to be established with the network device.

It should be understood that, in the embodiment of the present application, since the first data includes data that needs to be transmitted in an anonymous manner, the user-selected configuration information does not include information for determining a specific terminal device, for example, identification information of the terminal device, thereby achieving the benefit of anonymity.

Optionally, the user selection configuration information comprises probability information and/or selection conditions.

It is understood that the user selecting the configuration information may also be called the terminal selecting the configuration information, or selecting the configuration information.

It should be understood that, in this embodiment of the present application, "selected" may be understood as "the terminal device is selected to establish the anonymous RRC connection with the network device," or may also be understood as "the terminal device is selected to report the first data. Then "not selected" may be understood as "the terminal device is not able to establish the anonymous RRC connection with the network device", or may be understood as "the terminal device is not able to report the first data".

For example, if the user selection configuration information includes probability information, the terminal device determines to establish the anonymous RRC connection with the network device according to the user selection configuration information, including:

acquiring a random value;

and determining to establish the anonymous RRC connection with the network equipment under the condition that the random value and the probability information meet preset conditions. The preset conditions include, but are not limited to:

(1) the proportion of the random value to the maximum random value which can be generated is less than or equal to the probability of being selected;

(2) the ratio of the random value to the maximum random value that can be generated is greater than or equal to the probability of being non-selected.

Optionally, the probability information is a ratio, such as a percentage, indicating a probability of being selected or a probability of not being selected to establish an anonymous RRC connection, and the terminal device determines whether to be selected to establish the anonymous RRC connection by means of a random value.

For example, the probability information indicates that the probability that the terminal device is selected is 40%, the terminal device may randomly generate an integer within 100, and if the generated integer is within 40, the terminal device is selected; if the generated integer is between 40 and 100, it is not selected.

For another example, the probability information indicates that the probability that the terminal device is not selected is 50%, the terminal device may randomly generate an integer within 100, and if the generated integer is within 50, the terminal device is not selected; if the generated integer is between 50 and 100, it is selected.

It should be understood that the probability of being selected and the probability of being unselected in the above example may be represented in other forms, for example, the probability of being selected is 0.4 or 2/5, and the probability of being unselected is 0.5 or 1/2.

Optionally, in a possible implementation, the terminal device and the network device may agree in advance that the probability information is the probability of being selected or the probability of being not selected.

It should be understood that, in this embodiment of the present application, the random value may also be generated by the terminal device itself, or may also be obtained by the terminal device from another device, and this is not limited in this embodiment of the present application.

It should also be understood that, in the embodiment of the present application, the probability information may be understood as a value, and may also be understood as a threshold, for example, when the random value obtained by the terminal device is greater than or equal to the threshold, the terminal device is determined to be selected.

For example, if the user configuration information includes a selection condition, the selection condition including location information of the first area, the terminal device determining to establish the anonymous RRC connection with the network device according to the user selection configuration information, including:

determining to establish the anonymous RRC connection with the network device in a case where the terminal device is located in the first region.

Alternatively, the first area may be a geographical area, for example, the location information of the first area may be longitude and latitude information of the first area.

Optionally, the first area may also be a circular area, for example, the position information of the first area may include a position of a center point of the circular area and radius information of the circle.

Optionally, the selecting condition may also include a first type of information, where the first type is a certain type or certain types of information of a terminal device, and the terminal device determines to establish the anonymous RRC connection with the network device according to the user selection configuration information, including:

in a case where the terminal device is the first type of terminal device, determining to establish the anonymous RRC connection with the network device.

Optionally, the first type of terminal device includes, but is not limited to, one or more of the following types:

(1) MDT signed terminal equipment;

(2) an energy insensitive terminal device;

(3) a terminal device of the internet of things (IoT);

(4) and the terminal equipment stores certain MDT data.

For example, the energy insensitive terminal device may be a fixed location terminal device, e.g., a terminal device that is always connected to power or is being charged.

For another example, the terminal device storing some kind of MDT data may be a terminal device storing a failure MDT log, or a terminal device storing a periodic MDT log, or the like.

It should be understood that the above is merely illustrative of a terminal device that is not energy sensitive and a terminal device that holds some type of MDT data, and the present application is not limited thereto.

It should also be understood that, in the embodiment of the present application, the terminal device of the first type may be any one of the above types or any combination of the above types.

It is further understood that any combination of the probability information, the location information of the first area and the information of the first type of terminal device may be used to determine whether the terminal device is selected, for example, the probability information and the location information of the first area may be combined, the first indication information may indicate that the energy-insensitive terminal device is selected with a probability of 40%, the terminal device is selected to satisfy two conditions, ① that the terminal device is an energy-insensitive terminal device, and ② that the random number generated by the terminal device within 100 is within 40.

It should also be understood that the user selection configuration information of the embodiment of the present application may also be other information, or a combination of other information, probability information, and/or a selection condition, for example, the other information may be power consumption information of the terminal device, for example, may be a power consumption threshold, when the terminal device receives the first indication information, the current power consumption of the terminal device may be determined, when the power consumption is less than or equal to the power consumption threshold, the terminal device may be selected, otherwise, the terminal device may not be selected.

In the embodiment of the application, a timer mechanism can be further adopted to avoid the terminal device from frequently transmitting data, so that the power consumption of the terminal device is saved.

Optionally, before the terminal device determines to establish the anonymous RRC connection with the network device according to the first indication information, the method 300 further includes:

the terminal device determines that a first timer is not running, the state of which may be used for the terminal device to determine whether to establish the anonymous RRC connection with the network device.

For example, if a terminal device has reported MDT data, that is, if a terminal device has established an anonymous RRC connection, the first indication information may be omitted for a certain time. For example, a first timer may be started each time it is determined that an anonymous RRC connection setup needs to be initiated, or each time an anonymous RRC connection is released, during which first timer the terminal device ignores the first indication information if it receives it again. For example, each time when determining whether to initiate anonymous RRC connection setup or receive the first indication information, if the first timer is still running, the terminal device ignores the first indication information, otherwise determines whether to select according to the method in S320. Optionally, the first indication information may further include a duration of the first timer. Since the first indication information is ignored within a certain time, it can also be understood that if the terminal device receives the first indication information again within a certain time, the terminal device does not execute corresponding operation according to the first indication information received again.

Optionally, after the terminal device determines to establish the anonymous RRC connection with the network device, the method further includes:

and the terminal equipment starts the first timer, and the state of the first timer is used for determining whether to establish anonymous RRC connection with the network equipment after the terminal equipment receives the first indication information next time.

Specifically, the terminal device may start the first timer after establishing the anonymous RRC connection with the network device, and if receiving indication information that reporting data needs to be transmitted in an anonymous manner again after sending the first data, may first determine whether the first timer is overtime, if the first timer is overtime, the terminal device may establish the anonymous RRC connection with the network device, otherwise, the terminal device does not establish the anonymous RRC connection with the network device.

It should be understood that, in the embodiment of the present application, the first timer is not run, and may also be understood as the first timer is overtime, and the first timer is run, and may also be understood as the first timer is not overtime.

It should also be understood that the state of the timer may be "running" or "not running", and one scenario resulting in a state where the timer is "not running" may be "timeout".

It should also be understood that, in this embodiment of the present application, the starting time of the first timer may be when the terminal device determines to establish an anonymous RRC connection with the network device, or when the terminal device establishes the anonymous RRC connection with the network device, or when the terminal device starts or finishes sending the first data to the network device, or when the terminal device releases the anonymous RRC connection, and this application does not limit the starting time of the timer.

It should also be understood that the duration of the first timer may be configured by the network device, or may be preset, and this is not limited in this embodiment of the present application.

Optionally, the first indication information may further include delayed establishment configuration information, where the delayed establishment configuration information is used for the terminal device to determine a time point of establishing the anonymous RRC connection.

It should be understood that, in the embodiment of the present application, the information such as the user selection configuration information and the delay establishment configuration information is included in the first indication information for an example, the information such as the user selection configuration information and the delay establishment configuration information may not be included in the first indication information, but may be respectively issued to the terminal device in other information or messages, which is not limited in this embodiment of the present application.

In a possible manner, the first indication information sent by the network device may trigger multiple terminal devices to be selected for anonymous RRC connection establishment, and if all of the terminal devices initiate connection establishment immediately, the probability of collision in the random access procedure may be increased, resulting in signaling impact on the network. A delay establishment mechanism may therefore be considered. The first indication information may carry delayed establishment configuration information, or a protocol specifies delayed establishment configuration information, for example, delayed establishment configuration information based on a random value or identification information of the terminal device, so that the terminal device may obtain different time points for establishing anonymous RRC connections or a time duration for establishing delayed RRC connections, and the terminal device may establish the anonymous RRC connections as dispersedly as possible.

For example, the delay establishment mechanism may establish configuration information for a delay based on a random value, the delay establishment configuration information including a maximum time or time range for the delay establishment, or a maximum time or time range for the protocol to specify the delay establishment. The terminal equipment generates a random value, and determines the time point of establishing the anonymous RRC connection through the random value.

For example, the maximum time is 1 minute, the terminal device may generate random numbers within 100, each random number corresponding to a time point at which anonymous RRC connection establishment is delayed.

One possible implementation is that the terminal device may obtain a percentage corresponding to the random value from the obtained random value, and obtain the delay duration by 60 seconds. For example, if the random value is 0, the initiation is performed immediately, if the random value is 40, the percentage is 40%, and if 60 seconds × 40% — 24 seconds, the anonymous RRC connection is established after a delay of 24 seconds.

For another example, the maximum time is 2 seconds, the terminal device may generate a random number within 100, the terminal device generating the random value between 0 and 30 may immediately establish the anonymous RRC connection, the terminal device generating the random value between 31 and 60 may delay 1 second after receiving the first indication information to establish the anonymous RRC connection, and the terminal device generating the random value between 61 and 100 may delay 2 seconds after receiving the first indication information to establish the anonymous RRC connection.

For another example, the maximum time is 1 minute, the identification information of the terminal device is the ID of the terminal device, and the terminal device may determine the time point of establishing the corresponding anonymous RRC connection according to a numerical value obtained by a remainder function mod (ID, divsor), where the divsor may be a preset divisor.

Optionally, before the terminal device determines to establish the anonymous RRC connection with the network device, the method 200 further includes:

the terminal device determines to be in an idle state or a deactivated dynamic state.

In the NR system, there are 3 RRC states, which are idle (idle), connected (connected) and inactive (inactive) states, respectively. In an idle state, the terminal device and the network device do not establish RRC connection, and the terminal device does not store the state of the RRC connection configuration of the idle state; in a connected state, the terminal equipment and the network equipment establish an RRC connected state; under the deactivation dynamic state, the terminal device and the network device do not establish RRC connection, but the terminal device saves the state of the RRC connection configuration of the air interface. For example, for a connected terminal device, an RRC connection with a network device has been established; for a dynamically deactivated terminal device, context information of the terminal device is saved.

Optionally, in a possible manner, the above scheme is applicable to the terminal device in an idle state, that is, the terminal device in an idle state may determine whether it is selected by the above scheme.

Optionally, in another possible manner, the above scheme is applicable to an idle state or a deactivated dynamic terminal device, that is, the idle state or the deactivated dynamic terminal device may determine whether itself is selected through the above scheme.

Optionally, for the terminal device completing the anonymous connection establishment, a new RRC state may be introduced to identify, for example, an RRC anonymous state, which is a state indicating that the terminal device establishes an anonymous RRC connection with the network device. It will be appreciated that the RRC anonymous state may also be considered as an idle state or a seed state of a deactivation dynamic.

For a terminal device initiating an anonymous RRC connection or a terminal device in an RRC anonymous state, since the network device does not know the identity of the terminal device and considers that the terminal device is still in an idle state or in a deactivated state, when downlink data needs to be sent to the terminal device, the network device may send a paging message to page the terminal device, and optionally, the paging message carries identification information of the terminal device.

In one embodiment, the terminal device initiating the anonymous RRC connection establishment and entering the RRC anonymous state still listens for paging messages and determines whether the paging messages contain its own identification information to determine whether to be paged. If the terminal device is paged or has uplink data to send, for example, the uplink data is not the first data, the terminal device may disconnect the anonymous RRC connection, for example, enter an idle state, and then initiate a normal RRC connection establishment procedure to enter a connected state. For example, in the normal RRC connection establishment process, the core network obtains the identification information of the terminal device by authenticating or authenticating the terminal device. The priority of the terminal equipment for establishing the common RRC connection is higher than the priority of the terminal equipment for establishing the anonymous RRC connection or carrying out the first data transmission. Optionally, the disconnecting of the anonymous RRC connection may include, for example: the terminal device requests the network to release the anonymous RRC connection, or the terminal device notifies the network device that the terminal device will release the RRC connection.

S330, after the terminal device establishes the anonymous RRC connection with the network device, the terminal device sends the first data to the network device.

Correspondingly, the network device receives the first data sent by the terminal device.

Here, the terminal device determines that the terminal device is selected, establishes an anonymous RRC connection with the network device, and transmits the first data to the network device.

It should be noted that, in the embodiment of the present application, a manner of establishing an anonymous RRC connection between the terminal device and the network device is not limited, that is, any manner that can achieve anonymity between the terminal device and the network device may be implemented in the embodiment of the present application.

It should be understood that, in this embodiment of the application, the first indication information may include one or a combination of user selection configuration information, delay establishment configuration information, and information such as a duration of the first timer (or information related below), in another possible implementation, the user selection configuration information, the delay establishment configuration information, and the information such as the duration of the first timer may be carried in different information and issued to the terminal device at the same time, or issued to the terminal device respectively in a certain sequence, which is not limited in this embodiment of the application.

According to the communication method, the first indication information carries the user selection configuration information, and the terminal equipment is helped to determine whether anonymous RRC connection needs to be initiated.

The problem of how to determine whether the terminal device establishes the anonymous RRC connection with reference to fig. 5 is described above, and how to issue the first indication information to the terminal device by the network device is described below with reference to fig. 6 and fig. 7.

Fig. 6 shows a schematic flow chart of a communication method 400 provided by an embodiment of the present application, and as shown in fig. 6, the method 400 includes:

s410, the network equipment sends a paging message to the terminal equipment.

Correspondingly, the terminal device receives the paging message sent by the network device.

In a possible manner, the paging message includes first indication information, where the first indication information is used to indicate that the first data is reported.

Optionally, the first data comprises data that needs to be transmitted anonymously.

Optionally, a paging message triggered by the network device includes the first indication information, where the paging message is not directed to a specific certain terminal device, for example, is not paged through an identifier of the terminal device, the first indication information is used to indicate the terminal device to report the first data, and the first data includes data that needs to be transmitted in an anonymous manner.

In the prior art, if it is necessary to page a terminal device to establish an RRC connection, paging is performed by carrying identification information of the terminal device in a paging message. In the embodiment of the application, the network device may not perform paging through the identification information of the terminal device, but perform paging in the paging message, and after receiving the first indication information, the terminal device may determine whether to initiate anonymous RRC connection establishment based on the first indication information.

And S420, the terminal device determines to establish anonymous RRC connection with the network device according to the first indication information.

It should be understood that the specific determination method may refer to the related description of S320 in the method 300, and for brevity, will not be described herein again.

It should be further understood that, after determining that the RRC connection is established with the network device, the terminal may perform a procedure of establishing an anonymous RRC connection, and the embodiment of the present application does not limit how the procedure of establishing an anonymous RRC connection is performed, for example, refer to the related description of the method 200.

S430, after establishing the anonymous RRC connection with the network device, the terminal device sends the first data to the network device.

Fig. 7 illustrates a communication method 500 according to an embodiment of the present application, and as shown in fig. 7, the method 500 includes:

and S510, the network equipment sends second indication information to the terminal equipment.

Correspondingly, the terminal device receives the second indication information sent by the network device, where the second indication information is used to indicate that the content of the system message is changed, or the second indication information is used to indicate that the system message carries the first indication information.

Alternatively, the second indication information may be a short message field (short message field) in Downlink Control Information (DCI).

Optionally, the short message field may be scrambled using a paging radio network temporary identity (P-RNTI), so as to indicate a content change of the system message by the second indication information, or indicate that the system message carries the first indication information. The second indication information can trigger the terminal equipment to acquire the first indication information by reading the system information.

Table 1 shows bits of the short message field, wherein the bits in the short message field may be used to carry a corresponding short message.

TABLE 1

The setting of bit 1 to 1 indicates that the system message is changed, it can be understood that the setting of bit 1 to 0 may also indicate that the system message is changed, and the meaning of the specific value of bit is not limited in the embodiment of the present application.

In this embodiment of the application, when the network device needs to send the first indication information through the system message, a short message with bit 1 set to 1 may be sent, so as to trigger the terminal device to read the system information to obtain the first indication information, or one or more bits of another bit, such as bit 3, may also be used, for example, setting a certain position in bit 3 to 1 indicates that the network device sends the first indication information, so as to trigger the terminal device to read the system information to obtain the first indication information.

S520, the network device sends a system message to the terminal device, where the system message includes first indication information, and the first indication information is used to indicate that first data is reported.

In one possible approach, the first indication information may be included in a system message. For example, a System Information Block (SIB) includes the first indication information.

It should be understood that, for the description of the first indication information, reference may be made to the description related to fig. 5, and for brevity, the description is not repeated herein.

It should also be understood that S510 and S520 may be performed first and then S510 and S520, or may be performed simultaneously with S510 and S520, and the network device sends the second indication information and the system message to the terminal device simultaneously.

S530, the terminal device determines to establish anonymous RRC connection with the network device according to the first indication information.

It should be understood that, the specific determination method may refer to the related description in S320, and is not described herein again for brevity.

It should be further understood that, after determining that the RRC connection is established with the network device, the terminal may perform a procedure of establishing an anonymous RRC connection, and the embodiment of the present application does not limit how the procedure of establishing an anonymous RRC connection is established, for example, refer to the related description related to fig. 4.

S540, after the terminal device establishes the anonymous RRC connection with the network device, the terminal device sends the first data to the network device.

How the network device issues the first indication information to the terminal device is described above with reference to fig. 6 and fig. 7, and several scenarios in which the terminal device needs to initiate an anonymous RRC connection are described below with reference to fig. 8 to fig. 12.

Fig. 8 shows a schematic flow chart of a communication method of an embodiment of the present application.

S610, the terminal device stores the data which needs to be transmitted in an anonymous mode.

S620, the network equipment sends the first indication information to the terminal equipment.

The terminal device receives the first indication information sent by the network device, where the first indication information is used to indicate the terminal device to report the stored first data.

Optionally, the first data includes data that the terminal device has saved and needs to be transmitted anonymously.

Optionally, the first indication information may further include information indicating a type of data that needs to be transmitted anonymously.

Optionally, the type of data to be transmitted anonymously includes a failure MDT log and/or a period MDT log, and the like.

In this embodiment of the application, the first indication information may indicate that the data that needs to be transmitted anonymously is reported in an implicit indication mode or an explicit indication mode:

explicit indication: the first indication information comprises two fields, wherein one field is used for indicating that the data needing to be transmitted in an anonymous way is reported and the other field is information of the type of the data needing to be transmitted in the anonymous way.

Implicit indication: the first indication information includes a field, the field is information of the type of data needing to be transmitted in an anonymous mode, and after receiving the first indication information, the terminal device can implicitly learn that the network device wants to report the stored data needing to be transmitted in the anonymous mode.

Optionally, the first indication information may also include a field for indicating that data that needs to be transmitted anonymously is reported, but does not include information of the type of the data that needs to be transmitted anonymously, and then the terminal device determines to establish the anonymous RRC connection with the network device according to the received first indication information.

For example, for the implicit indication mode, the network device may use a bitmap indication, each bit in the bitmap corresponds to a log type, and one possible implementation manner is that each bit in the bitmap represents that the corresponding log type is reported when the value of the bit is 1, and represents that the corresponding log type is not reported when the value of the bit is 0. If the types of the data needing to be transmitted in an anonymous mode comprise failure MDT logs and periodic MDT logs, under the condition that the value of bitmap is 11, the bitmap indicates that the log types reported by the terminal equipment are the failure MDT logs and the periodic MDT logs; under the condition that the bitmap value is 10, the bitmap indicates that the log type reported by the terminal equipment is a failure MDT log; and under the condition that the bitmap value is 01, the bitmap indicates that the log type reported by the terminal equipment is a periodic MDT log.

It is understood that, for how the network device sends the first indication information to the terminal device, reference may be further made to the related description of the foregoing method embodiment.

S630, the terminal device determines to establish an anonymous RRC connection with the network device according to the first indication information.

Optionally, the terminal device stores data, which is indicated by the first indication information and needs to be transmitted in an anonymous manner, and determines to establish an anonymous RRC connection with the network, where, for example, the first indication information indicates the terminal device to report a failure MDT log, and after the terminal device receives the first indication information, if the terminal device stores the failure MDT log, for example, the terminal device stores the failure MDT log and needs to be reported to the network, the terminal device confirms that it is selected and determines to establish an anonymous RRC connection with the network device; and if the terminal equipment does not store the failure MDT log, confirming that the terminal equipment is not selected, and determining not to establish anonymous RRC connection.

S640, after the terminal device establishes the anonymous RRC connection with the network device, the terminal device sends the data that the terminal device has saved and needs to be transmitted in an anonymous manner to the network device.

It should be understood that, in this embodiment of the present application, the data that is sent by the terminal device to the network device to be stored and needs to be transmitted anonymously may be generated and stored before the terminal device receives the first indication information, or may be generated during the process that the terminal device establishes the anonymous RRC connection with the network device, which is not limited in this embodiment of the present application.

It should also be understood that, the procedure of the terminal device determining whether to initiate the anonymous RRC connection may refer to the above-mentioned related description of S320, and for brevity, will not be described herein again.

According to the communication method, when the network device needs to collect the data which are stored by the terminal device and need to be transmitted in the anonymous mode, the first indication information can be sent to the terminal device, so that the terminal device reports the data through the anonymous RRC connection, and the network device can timely obtain the data which are generated by the terminal device and need to be transmitted in the anonymous mode.

Fig. 9 shows a schematic flow chart of a communication method of an embodiment of the present application. S710, the network equipment sends first indication information to the terminal equipment.

The terminal device receives the first indication information sent by the network device, and the first indication information is used for indicating the terminal device to report first data.

Optionally, the first data includes data measured by the terminal device through the first configuration information.

It should be understood that, in the method 700, the first indication information is used to indicate the terminal device to report the first data, and may also be understood as the first indication information is used to indicate the terminal device to establish an anonymous RRC connection with the network device, so that the terminal device enters a connected state, and thus receives the first configuration information sent by the network device.

Optionally, the first configuration information is immediate mdt (immediate mdt) measurement configuration information.

It should be understood that the immediate MDT measurement configuration information may be a measurement task in a connected state, and the terminal device may obtain a measurement report according to the measurement task in the connected state and carry the location information in the measurement report.

Optionally, the terminal device may perform measurement according to the first configuration information after establishing the anonymous RRC connection with the network device, so as to obtain the first data.

S720, the terminal device determines to establish anonymous RRC connection with the network device according to the first indication information.

It should be understood that reference to S720 may be made to the above description of S320, and for brevity, the description is omitted here.

S730, after the terminal device and the network device establish the anonymous RRC connection, the network device sends the first configuration information to the terminal device, and the terminal device receives the first configuration information sent by the network device.

Optionally, the sending, by the network device, the first configuration information to the terminal device includes:

the network device sends an RRC connection reconfiguration message to the terminal device, where the RRC connection reconfiguration message includes the first configuration information.

It should be understood that, after receiving the first configuration information, the terminal device may determine that the network device desires to perform measurement according to the first configuration information and report the measured first data.

S740, performing measurement according to the first configuration information to obtain the first data.

S750, the terminal device sends the first data to the network device.

Fig. 10 shows a schematic flow chart of a communication method 800 of an embodiment of the present application, and as shown in fig. 10, the method 800 includes:

s810, the network equipment sends first indication information to the terminal equipment.

Optionally, the first data includes data measured by the terminal device through the second configuration information.

Optionally, the second configuration information is periodic mdt (regular mdt) measurement configuration information.

Optionally, the terminal device may perform measurement according to the second configuration information in an idle state, so as to obtain the first data.

And S820, the terminal device determines to establish anonymous RRC connection with the network device according to the first indication information.

It should be understood that reference to S820 may be made to the above description of S320, which is not repeated herein for brevity.

S830, the network device sends the second configuration information to the terminal device, and the terminal device receives the second configuration information sent by the network device.

S840, the terminal device releases the anonymous RRC connection with the network device to enter an idle state.

And S850, the terminal equipment measures according to the second configuration information in an idle state to obtain the first data.

Specifically, since the terminal device needs to perform measurement in an idle state according to the second configuration information, the terminal device may release the anonymous RRC connection with the network device when receiving the second configuration information, thereby entering the idle state, and perform measurement in the idle state to obtain the first data.

S860, the terminal device establishes the anonymous RRC connection with the network device.

S870, after the terminal device establishes the anonymous RRC connection with the network device, the terminal device sends the first data to the network device.

Optionally, after obtaining the first data by idle state measurement, the terminal device reestablishes anonymous RRC connection with the network device, so as to report the first data obtained by measurement to the network device.

In the communication method of the embodiment of the application, when the network device needs to collect data measured by the terminal device according to the second configuration information, the first indication information may be sent to the terminal device, so that the terminal device reports the data through the anonymous RRC connection.

In one embodiment, fig. 11 shows another schematic flow chart of a communication method 800 of an embodiment of the present application, where the method 800 includes:

s811, a network device sends a first message to a terminal device, where the first message includes first indication information and second configuration information, and the first indication information is used to indicate the terminal device to report first data.

Optionally, the first message is a paging message or a system message.

In one embodiment, the sending, by the network device, the first indication information to the terminal device includes: the network device sends a paging message or a system message to the terminal device, wherein the paging message or the system message comprises the first indication information.

Optionally, the paging message or the system message includes the second configuration information.

It should be understood that the first indication information and the second configuration information may be both carried in the paging message, or both carried in the system message, or one carried in the paging message and the other carried in the system message, which is not limited in this application.

And S821, the terminal device measures according to the second configuration information to obtain the first data.

And S831, the terminal device determines to establish the anonymous RRC connection with the network device according to the first indication information.

It should be understood that S831 can refer to the above description of S320, and for brevity, will not be described herein again.

It should be further understood that, after determining that the RRC connection is established with the network device, the terminal device performs a procedure of establishing an anonymous RRC connection, and the embodiment of the present application does not limit how the procedure of establishing an anonymous RRC connection is established, for example, refer to the related description of the method 200.

S841, the terminal device sends the first data to the network device after establishing the anonymous RRC connection with the network device.

Specifically, the network device may simultaneously carry the second configuration information in a first message carrying the first indication information, the terminal device in an idle state may perform measurement according to the second configuration information to obtain the first data, and then the terminal device establishes an anonymous RRC connection with the network device, and reports the first data after establishing the anonymous RRC connection with the network device. Compared with the method shown in fig. 10, the method shown in fig. 11 does not require the terminal device to enter the idle state from the anonymous RRC connected state and enter the anonymous RRC connected state again.

According to the communication method in the embodiment of the application, the second configuration information is carried in the first message, so that the switching of the terminal equipment between the connection state and the idle state is avoided, and meanwhile, the signaling overhead is saved.

Fig. 12 shows a schematic flow chart of a communication method 900 according to an embodiment of the present application, and as shown in fig. 12, the method 900 includes:

s910, the network device sends first indication information to the terminal device.

The terminal device receives the first indication information sent by the network device, where the first indication information is used to indicate that the terminal device is allowed to actively report first data.

In this embodiment of the application, when the first indication information is used to indicate that the terminal device is allowed to actively report the first data, the terminal device may decide to report the first data by itself, for example, the terminal device may select a suitable time to report the first data by itself.

Optionally, the first indication information includes a reporting condition of the first data.

For example, when the number of the failure logs of the terminal device reaches a first value, the terminal device may actively report the first data.

For another example, when the terminal device stores a failure log, the first data may be actively reported.

In the embodiment of the present application, the first indication information indicates that the terminal device is allowed to actively report the first data, and the first data may be reported in an implicit indication mode and an explicit indication mode:

explicit indication: the first indication information includes two fields, one field is used for indicating that the terminal device is allowed to actively report the first data, and the other field is a reporting condition of the first data.

Implicit indication: the first indication information includes a field, which is a reporting condition of the first data, and after receiving the first indication information, the terminal device can implicitly know that the network device wants to actively report the first data.

Optionally, the first indication information may also include a field for indicating that the terminal device is allowed to actively report the first data, but does not include a reporting condition of the first data, and then the terminal device determines to establish the anonymous RRC connection with the network device according to the received first indication information.

S920, when the condition of active reporting is satisfied, the terminal device determines to establish an anonymous RRC connection with the network device.

For example, the reporting condition included in the first indication information is that the number of failed logs reaches 10, if the terminal device receives the first indication information and has only 5 failed logs, the terminal device does not meet the reporting condition, when the number of the failed logs stored in the terminal device reaches 10, the terminal device may actively report the 10 failed logs, and the number of the counted failed logs is set to 0, and then when the number of the failed logs stored in the terminal device reaches 10, active reporting may be selected.

S930, after establishing the anonymous RRC connection with the network device, the terminal device sends the first data to the network device.

In this embodiment, the method 900 is different from the method 300 in that the network device selects the terminal device to report the first data through the user-selected configuration information in the method 300, and the network device in the method 900 may allow the terminal device to actively report the first data, and the terminal device may determine whether to report the first data.

It should be understood that, after determining that the RRC connection is established with the network device, the terminal device performs a procedure of establishing an anonymous RRC connection, and the embodiment of the present application does not limit how the procedure of establishing an anonymous RRC connection is established, for example, refer to the related description of the method 200.

It should also be understood that the first indication information may include both the user-selected configuration information in the method 300 and the reporting condition in the method 900.

According to the communication method, when the network device needs the terminal device to actively report the data which needs to be transmitted in an anonymous mode, the first indication information can be sent to the terminal device, so that the terminal device actively reports the data through the anonymous RRC connection.

In one embodiment, for several scenarios shown in fig. 8 to 12, the terminal device may send information to the network device to indicate a triggering scenario of establishment of an anonymous RRC connection when initiating the anonymous RRC connection, including: the terminal device actively performs anonymous transmission, or the terminal device initiates anonymous transmission according to a request of the network device, for example, anonymous transmission based on the first configuration information and the second configuration information.

Optionally, the terminal device may carry, in an RRC connection request message or an RRC connection setup complete message, information that the terminal device initiates anonymous transmission actively or according to a request of the network device.

Several scenarios in which the terminal device needs to initiate an anonymous RRC connection are described above with reference to fig. 8 to 12, and a security protection mechanism when the terminal device reports the first data is described below with reference to fig. 13.

Fig. 13 shows a schematic flow chart of a communication method 1000 according to an embodiment of the present application, and as shown in fig. 13, the method 1000 includes:

s1010, a network device sends a second message to a terminal device, and the terminal device receives the second message sent by the network device, where the second message includes first indication information, and the first indication information is used to indicate the terminal device to report first data.

Optionally, the second message may further include third indication information, where the third indication information includes the first public key. The terminal device encrypts first data sent to the network device using the first public key. Optionally, the first public key is a public key of the network device.

Optionally, the second message is a system message.

Optionally, the system message may be the same as the system message in the method 500, or may be a different system message, which is not limited in this embodiment.

The method 1000 in this embodiment of the present application mainly relates to an air interface security protection mechanism for anonymous transmission, and considering that anonymous transmission is performed, a network device does not know the identity of a terminal device, and an asymmetric key mechanism may be used to perform security protection.

The asymmetric key mechanism requires two keys: a public key (public key) and a private key (private key). The public key and the private key are a pair, and if the public key is used for encrypting data, the data can be decrypted only by using the corresponding private key; the two parties of communication exchange public keys, one party is encrypted by the public key of the other party when in use, and the other party can be decrypted by the private key of the other party.

For anonymous transmission, the public key of the network device may be sent to the terminal device through a cell broadcast (e.g., a system message), a security mode command (security mode command) message, or the like, and the terminal device encrypts the first data sent to the network device using the public key of the network device. And after receiving the first data sent by the terminal equipment, the network equipment uses the private key corresponding to the public key to decrypt.

S1020, the terminal device determines to establish an anonymous RRC connection with the network device according to the first indication information.

It should be understood that S1020 may refer to the description related to S320 above, and therefore, for brevity, will not be described herein again.

S1030, after the network device establishes the anonymous RRC connection, the network device sends a security mode command message to the terminal device.

The terminal device receives the security mode command message sent by the network device.

It should be understood that the security mode command message is an RRC message for activating security of an air interface, and the security mode command message may have other message names.

It should also be understood that the first public key may also be transmitted to the terminal device through the security mode command message in S1030. Or, the first public key may also be sent to the terminal device through other messages, and the sending method of the first public key is not limited in this application embodiment.

S1040, the terminal device sends a security mode complete (security mode complete) message to the network device.

Optionally, the security mode completion message carries a second public key of the terminal device, and is used to encrypt the data or the signaling sent by the network device to the terminal device.

In the embodiment of the application, for uplink, the terminal device can encrypt data or signaling by using the first public key and send the encrypted data to the network device, and the network device can decrypt the encrypted data by using the private key of the network device; for downlink, the network device may encrypt data or signaling using the second public key, and the terminal device may decrypt using its own private key.

S1050, the terminal device encrypts the first data using the first public key.

S1060, the terminal device sends the encrypted first data to the network device.

It should be understood that the first data here includes data that needs to be transmitted anonymously, or signaling between the terminal device and the network device.

Optionally, the signaling between the terminal device and the network device includes, but is not limited to, RRC messages carrying anonymous data.

It should be appreciated that considering that the downstream information security requirements are low, no encryption may be considered. If the downstream also requires encryption, the second public key of the terminal device may be sent to the network device in a security mode complete message.

It should be further understood that, considering that the first data transmitted anonymously is for the maintenance of the operator network, and the necessity of confidentiality is not strong, one method is that, for the data to be transmitted anonymously, especially for MDT data, a security mechanism of an air interface may not be enabled, for example, the network device may not send the first public key to the terminal device, and after the anonymous RRC connection is established, the first data is not encrypted, and the transmission of the first data is directly performed, or the network device indicates whether the terminal device enables the security mechanism of the air interface.

It should also be understood that in the normal RRC connection establishment procedure, the network device may acquire the access capability of the terminal device. In order to better protect the privacy of the terminal device, it is considered that the data volume of anonymous transmission is generally relatively small, mobility does not need to be supported, and the terminal device does not need to measure, so that the complete access capability of the terminal device does not need to be acquired. The access stratum capability for anonymous transmission may be a simplified capability, and a separate "anonymous-transmitting terminal device capability" may be designed, such as not including measurement capability, not including carrier aggregation capability, including whether an asymmetric key mechanism is supported, and supported security algorithms, etc. The simplified terminal equipment access layer can hide the identity of the user to a certain extent. The network device may perform air interface wireless configuration on the terminal device based on the "anonymously transmitted terminal device capability".

In a possible implementation manner, the "terminal device capability of anonymous transmission" may be sent to the network device by the terminal device after the terminal device establishes an anonymous RRC connection with the network device, for example, the terminal device may send capability request information to the terminal device, and the terminal device reports the "terminal device capability of anonymous transmission" to the network device; or, the terminal device may actively report "the capability of the terminal device in anonymous transmission".

In another possible implementation manner, the "anonymously transferred terminal device capability" may be sent to the network device by the terminal device in the process of establishing an anonymous RRC connection between the terminal device and the network device, for example, the terminal device may carry the "anonymously transferred terminal device capability" in an RRC connection establishment completion message.

It should be understood that the air interface security mechanism between the terminal device and the network device, and the "terminal device capability for anonymous transmission" reported by the terminal device are also applicable to the above embodiments of the methods.

It should be noted that, in the above-mentioned embodiments of the method of the present application, the method and the step implemented by the terminal device may also be implemented by a component (e.g., a chip or a circuit) that can be used for the terminal device, and the method and the step implemented by the network device may also be implemented by a component (e.g., a chip or a circuit) that can be used for the network device.

The communication method according to the embodiment of the present application is described above with reference to fig. 4 to 13, and the communication apparatus, the terminal device, and the network device according to the embodiment of the present application are described below with reference to the drawings.

The embodiment of the application also provides a device for realizing any one of the methods. For example, there is provided an apparatus comprising means for performing each step performed by a terminal device in any of the above methods. For another example, another apparatus is also provided, which includes means for performing each step performed by a network device in any one of the above methods.

Fig. 14 shows a schematic block diagram of a communication apparatus 1100 provided in an embodiment of the present application, and as shown in fig. 14, the communication apparatus 1100 may include a transceiver unit 1110 and a processing unit 1120.

In a possible design, the communication device may be the terminal device in the methods 200 to 1000, or a chip configured in the terminal device.

In a possible manner, the transceiver 1110 is configured to receive first indication information from a network device, where the first indication information is used to indicate that first data is reported;

a processing unit 1120, configured to determine to establish an anonymous radio resource control RRC connection with the network device according to the first indication information;

the transceiving unit 1110 is further configured to send the first data to the network device after establishing the anonymous RRC connection with the network device.

Optionally, the transceiver 1110 may be configured to:

receiving a paging message from the network device, the paging message including the first indication information.

Optionally, the transceiver 1110 may be configured to:

receiving second indication information from the network device, where the second indication information is used to indicate a content change of a system message, or the second indication information is used to indicate that the system message carries the first indication information;

receiving a system message from the network device, wherein the system message comprises the first indication information.

Optionally, the second indication information is a short message field in the downlink control information DCI.

Optionally, the first indication information is used to indicate that the first data is reported and stored;

wherein, the apparatus 1100 further comprises:

the storage unit 1130 is used for storing the first data.

Optionally, the transceiving unit 1110 is further configured to receive first configuration information from the network device before sending the first data to the network device;

the processing unit 1120 is further configured to perform measurement according to the first configuration information after establishing the anonymous RRC connection with the network device, so as to obtain the first data.

Optionally, the transceiving unit 1110 is further configured to receive second configuration information from the network device before sending the first data to the network device;

wherein the processing unit 1120 is further configured to release the anonymous RRC connection, so that the apparatus enters an idle state;

in the idle state, measuring according to the second configuration information to obtain the first data;

the anonymous RRC connection is established with the network device.

Optionally, the transceiving unit 1110 is further configured to receive third indication information from the network device before sending the first data to the network device, where the third indication information is used to indicate the first public key;

the processing unit 1120 is further configured to encrypt the first data according to the first public key.

Optionally, the third indication information is carried in a security mode command message or a system message.

Optionally, the first indication information includes user selection configuration information, and the processing unit 1120 is configured to:

determining that the terminal equipment is selected according to the configuration information selected by the user;

determining to establish the anonymous RRC connection with the network device in the event that the terminal device is selected.

Optionally, the user selection configuration information includes probability information and/or selection conditions of the selection.

Optionally, the user selection configuration information includes probability information, and the processing unit 1120 may be configured to:

acquiring a random value;

and under the condition that the random value and the probability information meet preset conditions, determining that the terminal equipment is selected.

Optionally, the user selection configuration information includes the selection condition, the selection condition includes location information of the first area, and the processing unit 1120 may be configured to:

in a case where the apparatus is located in the first area, it is determined that the terminal device is selected.

Optionally, the user selection configuration information includes the selection condition, the selection condition includes information of a first type of terminal device, and the processing unit 1120 may be configured to:

determining that the terminal equipment is selected under the condition that the terminal equipment is determined to be the first type of terminal equipment according to the user selection configuration information;

the first type of terminal equipment comprises one or more of terminal equipment signed by MDT, terminal equipment insensitive to energy, terminal equipment of the Internet of things or terminal equipment storing MDT data.

Optionally, the processing unit 1120 is further configured to:

determining that a first timer is not running, the first timer to determine whether to establish the anonymous RRC connection with the network device.

Optionally, the processing unit 1120 is further configured to start the first timer after determining to establish an anonymous radio resource control, RRC, connection with the network device.

Optionally, the first data comprises minimization of drive tests, MDT, data.

Fig. 15 shows a schematic block diagram of a communication apparatus 1200 provided in an embodiment of the present application, and as shown in fig. 15, the communication apparatus 1200 may include a transceiver unit 1210 and a processing unit 1220.

In one possible design, the communication apparatus 1200 may be the network device in the methods 200 to 1000, or a chip configured in the network device.

In a possible manner, the transceiver unit 1210 is configured to send first indication information to the terminal device, where the first indication information is used to indicate that first data is reported;

a processing unit 1220, configured to establish an anonymous RRC connection with the terminal device;

the transceiving unit 1210 is further configured to receive the first data sent by the terminal device after establishing the anonymous RRC connection with the terminal device.

Optionally, the transceiver unit 1210 may be configured to:

and sending a paging message to the terminal equipment, wherein the paging message comprises the first indication information.

Optionally, the transceiver unit 1210 may be configured to:

sending second indication information to the terminal device, wherein the second indication information is used for indicating content change of a system message, or the second indication information is used for indicating that the system message carries the first indication information;

and sending a system message to the terminal equipment, wherein the system message comprises the first indication information.

Optionally, the first indication information is used to indicate that the terminal device reports the stored data that needs to be transmitted in an anonymous manner.

Optionally, the transceiving unit 1210 is further configured to send first configuration information to the terminal device before receiving the first data sent by the terminal device;

the first data includes data measured according to the first configuration information after the terminal device establishes the anonymous RRC connection with the network device.

Optionally, the transceiver unit 1210 is further configured to send second configuration information to the terminal device before receiving the first data sent by the terminal device;

and the first data comprises data measured by the terminal equipment in an idle state according to the second configuration information.

Optionally, the transceiver 1210 is further configured to send third indication information to the terminal device before receiving the first data sent by the terminal device, where the third indication information is used to indicate a first public key, and the first public key is used for the terminal device to encrypt the first data.

Optionally, the first data comprises minimization of drive tests, MDT, data.

It is to be understood that the units and other operations and/or functions described above in the communication apparatus 1100 and the apparatus 1200, respectively, are for implementing the corresponding flows of the methods 300 to 1000. For the specific process of each unit executing the corresponding steps, reference is made to the description of the method embodiment in conjunction with fig. 5 to 13, and for brevity, the description is omitted here.

It is to be understood that the units in the above-described communication apparatus may also be referred to as modules or components. The communication device may further comprise a storage unit for storing the program or the code or the data, which may be separate from or integrated with the processing unit. The transceiver unit may be a transceiver, a transceiver circuit or an interface, etc., the processing unit may be one or more processors, and the storage unit may be a memory.

Fig. 16 shows a schematic structural diagram of a terminal device provided in an embodiment of the present application, which may be the terminal device in the above embodiment, for implementing the operation of the terminal device in the above embodiment. As shown in fig. 16, the terminal device includes: an antenna 1310, a radio frequency part 1320, a signal processing part 1330. An antenna 1310 is connected to the radio frequency part 1320.

In a downlink direction, the rf section 1320 receives information sent by the network device through the antenna 1310, and sends the information sent by the network device to the signal processing section 1330 for processing.

In the uplink direction, the signal processing section 1330 processes the information of the terminal device and sends the information to the radio frequency section 1320, and the radio frequency section 1320 processes the information of the terminal device and sends the information to the network device through the antenna 1310.

The signal processing section 1330 may include a modem subsystem for implementing processing of each communication protocol layer of data; the system also comprises a central processing subsystem which is used for realizing the processing of an operating system and an application layer of the terminal equipment; in addition, other subsystems, such as a multimedia subsystem for controlling a camera, a screen display, etc. of the terminal device, a peripheral subsystem for connecting with other devices, etc. may be included. The modem subsystem may be a separately provided chip. Alternatively, the above means for the terminal device may be located at the modem subsystem.

Modem subsystem may include one or more processing elements 1331, including, for example, a master CPU and other integrated circuits. The modem subsystem may also include a memory element 1332 and an interface circuit 1333. The memory element 1332 is used to store data and programs, but programs for executing the methods performed by the terminal device in the above methods may not be stored in the memory element 1332, but stored in a memory outside the modem subsystem, and loaded for use by the modem subsystem when in use. Interface circuit 1333 is used to communicate with other subsystems. The above apparatus for a terminal device may be located in a modem subsystem, which may be implemented by a chip, which includes at least one processing element for supporting the terminal device to perform the above method and interface circuits for implementing input and/or output functions of the chip. In one implementation, the unit for the terminal device to implement each step in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the terminal device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the terminal device in the above method embodiment. The memory elements may be memory elements with the processing elements on the same chip, i.e. on-chip memory elements.

In another implementation, the program for performing the method performed by the terminal device in the above method may be a storage element on a different chip than the processing element, e.g. an off-chip storage element. At this time, the processing element calls or loads a program from the off-chip storage element onto the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.

In yet another implementation, the unit of the terminal device for implementing the steps of the above method may be configured as one or more processing elements disposed on the modem subsystem, where the processing elements may be integrated circuits, for example: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the terminal device for realizing the steps of the method can be integrated together and realized in the form of SOC, and the SOC chip is used for realizing the method. At least one processing element and a storage element can be integrated in the chip, and the processing element calls the stored program of the storage element to realize the method executed by the terminal equipment; or, at least one integrated circuit may be integrated in the chip, for implementing the method executed by the above terminal device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.

It is seen that the above apparatus for a terminal device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform the method performed by any one of the terminal devices provided by the above method embodiments. The processing element may: calling the program stored in the storage element to execute part or all of the steps executed by the terminal equipment; it is also possible to: executing part or all of the steps executed by the terminal equipment by means of integrated logic circuits of hardware in the processor element and combining instructions; of course, some or all of the steps performed by the terminal device may be performed in combination with the first manner and the second manner.

It should be understood that the processing unit 1120 in the apparatus 1100 may be at least one processing element in a terminal device, and the transceiver unit 1110 in the apparatus 1100 may be an interface circuit in the terminal device.

Fig. 17 shows a schematic structural diagram of a network device provided in an embodiment of the present application, which may be the network device in the foregoing embodiment, and is used to implement the operation of the network device in the foregoing embodiment. As shown in fig. 17, the network device includes: antenna 1401, radio frequency means 1402, baseband means 1403. The antenna 1401 is connected to a radio frequency device 1402 and the radio frequency device 1402 is connected to a baseband device 1403.

In one possible implementation manner, in the uplink direction, the rf device 1402 receives information transmitted by the terminal device through the antenna 1401, and transmits the information transmitted by the terminal device to the baseband device 1403 for processing.

In the downlink direction, the baseband device 1403 processes the information of the terminal device and sends the information to the rf device 1402, and the rf device 1402 processes the information of the terminal device and sends the information to the terminal device via the antenna 1401.

Baseband device 1403 may include one or more processing elements 14031, e.g., including a master CPU and other integrated circuits. Further, the baseband device 1403 may further include a storage element 14032 and an interface 14033, the storage element 14032 being used for storing programs and data; the interface 14033 is used for exchanging information with the radio frequency device 1402, and is, for example, a Common Public Radio Interface (CPRI). The above means for a network device may be located on the baseband means 1403, for example, the above means for a network device may be a chip on the baseband means 1403, the chip comprising at least one processing element and interface circuits, wherein the processing element is configured to support the network device to perform the above method, and the interface circuits are configured to implement input and/or output functions of the chip. In one implementation, the unit of the network device for implementing the steps in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the network device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the network device in the above method embodiment. The memory elements may be memory elements on the same chip as the processing elements, such as on-chip memory elements, or may be memory elements on a different chip than the processing elements, such as off-chip memory elements.

In another implementation, the unit of the network device for implementing the steps of the above method may be configured as one or more processing elements, which are disposed on the baseband apparatus, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the network device for implementing the steps of the above method may be integrated together and implemented in the form of an SOC, for example, the baseband device includes the SOC chip for implementing the above method. At least one processing element and a storage element can be integrated in the chip, and the method executed by the network equipment is realized in the form that the processing element calls the stored program of the storage element; or, at least one integrated circuit may be integrated in the chip, for implementing the method executed by the above network device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.

It is seen that the above apparatus for a network device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform the method performed by any one of the network devices provided by the above method embodiments. The processing element may: calling the program stored in the storage element to execute part or all of the steps executed by the network equipment; it is also possible to: executing some or all of the steps performed by the network device by way of the integrated logic circuitry of the hardware in the processor element in combination with the instructions; of course, some or all of the steps performed by the above network device may also be performed in combination with the first manner and the second manner.

The processing elements herein, like those described above, may be a general purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more DSPs, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

The storage element may be a memory or a combination of a plurality of storage elements.

It should be understood that the processing unit 1220 in the apparatus 1200 may be at least one processing element in a network device, and the transceiving unit 1210 in the apparatus 1200 may be an interface circuit in the network device.

Fig. 18 shows another schematic structural diagram of a network device provided in an embodiment of the present application, which may be the network device in the foregoing embodiment, for implementing the operation of the network device in the foregoing embodiment.

As shown in fig. 18, the network device includes: processor 1510, memory 1520, and interface 1530 are in signal communication, with processor 1510, memory 1520, and interface 1530.

The above communication apparatus 1200 may be located in the network device, and the functions of the respective units may be implemented by the processor 1510 calling a program stored in the memory 1520. For example, the above communication apparatus 1200 includes a memory for storing a program, which is called by the processor to execute the method in the above method embodiment, and a processor. The processor here may be an integrated circuit with signal processing capabilities, such as a CPU. Or the functions of the above respective units may be implemented by one or more integrated circuits configured to implement the above methods. For example: one or more ASICs, or one or more DSPs, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementations may be combined.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to perform the method in the above-described embodiments.

According to the method provided by the embodiment of the present application, the present application also provides a computer readable medium storing program code, which when run on a computer, causes the computer to execute the method in the above embodiment.

The terminal device and the network device in the above-mentioned various apparatus embodiments may completely correspond to the terminal device or the network device in the method embodiment, and the corresponding module or unit performs the corresponding steps, for example, when the apparatus is implemented in the form of a chip, the receiving unit may be an interface circuit of the chip for receiving signals from other chips or apparatuses. The above unit for transmitting is an interface circuit of the apparatus for transmitting a signal to other apparatuses, for example, when the apparatus is implemented in the form of a chip, the transmitting unit is an interface circuit of the chip for transmitting a signal to other chips or apparatuses.

An embodiment of the present application further provides a communication system, including: the terminal device and/or the network device.

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

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

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

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

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

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The above description is only a specific embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application.

Claims

1. A method of communication, comprising:

receiving first indication information from network equipment, wherein the first indication information is used for indicating to report first data;

determining to establish anonymous Radio Resource Control (RRC) connection with the network equipment according to the first indication information;

after establishing the anonymous RRC connection with the network device, sending the first data to the network device.

2. The method of claim 1, wherein receiving the first indication information from the network device comprises:

3. The method of claim 1, wherein receiving the first indication information from the network device comprises:

4. The method of claim 3, wherein the second indication information is a short message field in Downlink Control Information (DCI).

5. The method according to any one of claims 1 to 4, wherein the first indication information is used for indicating that the first data is saved in a report;

wherein before receiving the first indication information from the network device, the method further comprises:

and saving the first data.

6. The method of any of claims 1-4, wherein prior to said sending the first data to the network device, the method further comprises:

receiving first configuration information from the network device;

and after establishing the anonymous RRC connection with the network equipment, measuring according to the first configuration information to obtain the first data.

7. The method of any of claims 1-6, wherein prior to said sending the first data to the network device, the method further comprises:

receiving third indication information from the network device, wherein the third indication information is used for indicating a first public key;

and encrypting the first data according to the first public key.

8. The method of claim 7, wherein the third indication information is carried in a secure mode command message or a system message.

9. The method according to any one of claims 1 to 8, wherein the first indication information comprises user selection configuration information, and wherein the determining to establish an anonymous RRC connection with the network device according to the first indication information comprises:

determining that the terminal equipment is selected according to the user selection configuration information;

and determining to establish the anonymous RRC connection with the network device under the condition that the terminal device is selected.

10. The method of claim 9, wherein the user selection configuration information comprises probability information and/or selection conditions of being selected.

11. The method of claim 10, wherein the user selection configuration information includes the probability information, and wherein determining that a terminal device is selected based on the user selection configuration information comprises:

acquiring a random value;

12. The method of claim 10, wherein the user selection configuration information comprises the selection condition, wherein the selection condition comprises location information of a first area, and wherein determining that the terminal device is selected according to the user selection configuration information comprises:

and determining that the terminal equipment is selected under the condition of being located in the first area.

13. The method of claim 10, wherein the user selection configuration information comprises the selection condition, wherein the selection condition comprises a first type of information of the terminal device, and wherein the determining that the terminal device is selected according to the user selection configuration information comprises:

the first type information comprises one or a combination of terminal equipment signed by MDT, terminal equipment insensitive to energy, terminal equipment of the Internet of things or terminal equipment storing MDT data.

14. The method according to any one of claims 1 to 8, wherein the first indication information includes a reporting condition of the first data, and the determining to establish an anonymous RRC connection with the network device according to the first indication information includes:

and determining to establish the anonymous RRC connection with the network equipment under the condition that the reporting condition of the first data is met.

15. The method according to any of claims 1 to 14, wherein before determining to establish an anonymous radio resource control, RRC, connection with the network device according to the first indication information, the method further comprises:

determining that a first timer is not running, wherein a state of the first timer is used to determine whether to establish the anonymous RRC connection with the network device.

16. The method of any of claims 1-15, wherein the first data comprises MDT data.

17. A method of communication, comprising:

sending first indication information to terminal equipment, wherein the first indication information is used for indicating to report first data;

establishing anonymous RRC connection with the terminal equipment according to the request information of the terminal equipment;

and after establishing the anonymous RRC connection with the terminal equipment, receiving the first data sent by the terminal equipment.

18. The method of claim 17, wherein the sending the first indication information to the terminal device comprises:

19. The method of claim 17, wherein the sending the first indication information to the terminal device comprises:

20. The method of claim 19, wherein the second indication information is a short message field in Downlink Control Information (DCI).

21. The method according to any one of claims 17 to 20, wherein the first indication information is used to indicate that the terminal device reports the saved first data.

22. The method according to any of claims 17 to 20, wherein before the receiving the first data sent by the terminal device, the method further comprises:

sending first configuration information to the terminal equipment;

and the first data comprises data measured by the terminal equipment according to the first configuration information after the anonymous RRC connection is established.

23. The method according to any of claims 17 to 20, wherein before the receiving the first data sent by the terminal device, the method further comprises:

sending second configuration information to the terminal equipment;

24. The method according to any of claims 17 to 23, wherein before the receiving the first data sent by the terminal device, the method further comprises:

and sending third indication information to the terminal equipment, wherein the third indication information is used for indicating a first public key, and the first public key is used for encrypting the first data by the terminal equipment.

25. The method of claim 24, wherein the third indication information is a security mode command message or a system message.

26. The method according to any of claims 17 to 25, wherein the first indication information comprises a reporting condition of the first data.

27. The method of any of claims 17 to 26, wherein the first data comprises MDT data.

28. A communication device for implementing the method of any one of claims 1-16.

29. A communication device for implementing the method of any one of claims 17-27.

30. A computer-readable medium, comprising a computer program which, when run on a computer, causes the computer to perform the method of any of claims 1-16 or the method of any of claims 17-27.