CN117501745A

CN117501745A - Configuration method, device, equipment and storage medium of cell parameters

Info

Publication number: CN117501745A
Application number: CN202280001997.5A
Authority: CN
Inventors: 李小龙
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2024-02-02
Also published as: WO2023230844A1

Abstract

The application discloses a configuration method, device and equipment of cell parameters and a storage medium, and relates to the field of mobile communication. The method comprises the following steps: configuring cell parameters of a target cell for a terminal through a system message SI and a radio resource control RRC message; wherein the SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell. Since the cell parameters of the target cell are configured by using the SI, the number of the cell parameters of the target cell carried by the RRC message can be reduced. And the SI is sent in a broadcast mode, and all terminals in the cell can receive the SI broadcast by the network equipment, so that signaling overhead can be reduced. Reducing the number of parameters carried by the RRC message can reduce signaling overhead for configuring cell parameters of the target cell using the RRC message.

Description

Configuration method, device, equipment and storage medium of cell parameters

Technical Field

The present invention relates to the field of mobile communications, and in particular, to a method, an apparatus, a device, and a storage medium for configuring cell parameters.

Background

In the process of cell switching, the terminal needs to use the cell parameters of the target cell, and the target cell is a cell which the terminal may select or access.

In the related art, a network device configures cell parameters of a target cell to a terminal using a radio resource control (Radio Resource Control, RRC) Reconfiguration message. For example, in the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) New Radio, NR, system, a terminal frequently switches connected satellites due to high-speed movement of the satellites with respect to a fixed position on the earth. Accordingly, the terminal needs to use cell parameters of different target cells. During the satellite switching process of the terminal, the network device sends the parameters of the target cell to the terminal through the RRC reconfiguration message.

By configuring the cell parameters of the target cell for the terminal in the above manner, the used RRC reconfiguration message causes a large amount of signaling overhead.

Disclosure of Invention

The embodiment of the application provides a method, a device, equipment and a storage medium for configuring cell parameters. The technical scheme is as follows:

according to an aspect of the present application, there is provided a method of configuring cell parameters, the method being performed by a network device, the method comprising:

configuring cell parameters of a target cell for a terminal through a system message SI and a radio resource control RRC message;

Wherein the SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell.

According to another aspect of the present application, there is provided a method for configuring cell parameters, the method being performed by a terminal, the method comprising:

receiving SI and RRC messages sent by network equipment and used for configuring cell parameters of a target cell for the terminal;

According to another aspect of the present application, there is provided an apparatus for configuring cell parameters, the apparatus comprising:

a sending module, configured to configure cell parameters of a target cell for a terminal through SI and RRC messages;

the receiving module is used for receiving SI and RRC messages sent by the network equipment and used for configuring cell parameters of a target cell for the terminal;

According to another aspect of the present application, there is provided a network device comprising: a processor; a transceiver coupled to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the method of configuring cell parameters as described in the above aspects.

According to another aspect of the present application, there is provided a terminal including: a processor; a transceiver coupled to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the method of configuring cell parameters as described in the above aspects.

According to another aspect of the present application, there is provided a computer readable storage medium having stored therein executable instructions loaded and executed by a processor to implement a method of configuring cell parameters as described in the above aspects.

According to another aspect of the present application, there is provided a chip comprising programmable logic circuits and/or program instructions for implementing the method of configuring cell parameters of the above aspects when the chip is run on a computer device.

According to another aspect of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium, from which a processor reads and executes the computer instructions, causing a computer device to perform the method of configuring cell parameters as described in the above aspects.

The technical scheme provided by the application at least comprises the following beneficial effects:

the cell parameters of the target cell are configured for the terminal by using a combination of SI and RRC messages. Since the cell parameters of the target cell are configured by using the SI, the number of the cell parameters of the target cell carried by the RRC message can be reduced. And the SI is sent in a broadcast mode, and all terminals in the cell can receive the SI broadcast by the network equipment, so that signaling overhead can be reduced. Reducing the number of parameters carried by the RRC message can reduce signaling overhead for configuring cell parameters of the target cell using the RRC message.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an NTN scenario based on transparent forwarding provided in an exemplary embodiment of the present application;

fig. 2 is a schematic diagram of an NTN scenario based on regenerative forwarding provided in an exemplary embodiment of the present application;

FIG. 3 is a schematic diagram of a satellite for terminal handoff connection provided in one exemplary embodiment of the present application;

FIG. 4 is a schematic diagram of a system architecture of a communication system provided in one exemplary embodiment of the present application;

fig. 5 is a flowchart of a method for configuring cell parameters according to an exemplary embodiment of the present application;

fig. 6 is a flowchart of a method for configuring cell parameters according to an exemplary embodiment of the present application;

fig. 7 is a flowchart of a method for configuring cell parameters according to an exemplary embodiment of the present application;

fig. 8 is a flowchart of a method for configuring cell parameters according to an exemplary embodiment of the present application;

fig. 9 is a block diagram of a configuration apparatus of cell parameters according to an exemplary embodiment of the present application;

fig. 10 is a block diagram of a configuration apparatus of cell parameters according to an exemplary embodiment of the present application;

fig. 11 is a schematic structural diagram of a communication device according to an exemplary embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

In the process of cell switching, the terminal needs to use the cell parameters of the target cell, and the target cell is a cell which the terminal may select or access. In a Non-terrestrial communication network (Non-Terrestrial Networks, NTN) of the 5G NR system, a network device configures cell parameters of a target cell to a terminal using an RRC reconfiguration message.

NTN technology generally provides communication services to terrestrial users by means of satellite communications. Satellite communications have many unique advantages over terrestrial cellular communications. Firstly, satellite communication is not limited by the user region, for example, general land communication cannot cover areas where communication equipment cannot be built or communication coverage is not performed due to sparse population, such as ocean, mountain, desert and the like, while for satellite communication, one satellite can cover a larger ground, and the satellite can perform orbital motion around the earth, so that theoretically, each corner on the earth can be covered by satellite communication. And secondly, satellite communication has great social value. Satellite communication can be covered in remote mountain areas, poor and backward countries or regions with lower cost, so that people in the regions enjoy advanced voice communication and mobile internet technology, and the method is favorable for reducing the digital gap of developed regions and promoting the development of the regions. Again, the satellite communication distance is far, and the cost of communication is not obviously increased when the communication distance is increased; and finally, the satellite communication has high stability and is not limited by natural disasters.

Communication satellites are classified into Low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, geosynchronous Orbit (Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (High Elliptical Orbit, HEO) satellites, and the like according to the Orbit heights. LEO and GEO are the main studies at the present stage.

Leo: the low orbit satellite has a height ranging from 500km to 1500km and a corresponding orbit period of about 1.5 hours to 2 hours. The signal propagation delay for single hop communications between users is typically less than 20ms. The maximum satellite visibility time is 20 minutes. The signal propagation distance is short, the link loss is less, and the requirement on the transmitting power of the user terminal is not high.

Geo: geosynchronous orbit satellites have an orbit height of 35786km and a period of 24 hours around the earth. The signal propagation delay for single hop communications between users is typically 250ms.

In order to ensure the coverage of the satellite and improve the system capacity of the whole satellite communication system, the satellite adopts multiple beams to cover the ground, and one satellite can form tens or hundreds of beams to cover the ground; a satellite beam may cover a ground area of several tens to hundreds of kilometers in diameter.

There are two types of satellites currently considered by 3GPP, respectively: transparent forwarding (transparent payload) satellites, and regenerative forwarding (regenerative payload) satellites. Illustratively, fig. 1 is a schematic diagram of an NTN scenario based on transparent forwarding provided in an exemplary embodiment of the present application, and fig. 2 is a schematic diagram of an NTN scenario based on regenerative forwarding provided in an exemplary embodiment of the present application.

Where feeder link refers to a wireless link between satellite 14 and NTN gateway 16 (NTN gateway), which is typically located on the ground.

Illustratively, an NTN network consists of the following network elements:

1 or more gateways: for connecting satellites to a terrestrial public network.

Feeder link: a link for communication between the gateway and the satellite.

Service link: a link for communication between a terminal and a satellite.

Satellite: the functions provided by the device can be divided into transmission load and regeneration load.

Transparent load: only the functions of radio frequency filtering, frequency conversion and amplification are provided. Only transparent forwarding of signals is provided without changing the waveform signals it forwards.

Regeneration load: in addition to providing radio frequency filtering, frequency conversion and amplification, demodulation/decoding, routing/conversion, encoding/modulation functions may be provided. Which has some or all of the functionality of the base station.

Inter-Satellite Links (ISL): exists in a regenerative load scenario.

As can be seen from the architecture of the NTN scenario described above, the terminal needs to switch its connected satellites due to the movement of the satellites even though the terminal is not moving on land. The satellite is used for providing communication coverage for the terminal, and the terminal is switched to the connected satellite, namely the cell to which the terminal is switched. For satellites in non-geosynchronous orbit, it moves at high speed relative to a fixed location on earth, resulting in frequent and unavoidable handovers of stationary and moving terminals, which can result in network devices frequently configuring cell parameters of a target cell for a terminal via RRC reconfiguration messages, thus causing significant signaling overhead.

According to the architecture of the NTN scenario, the network equipment (base station) providing coverage to the terminal is unchanged when the satellite providing communication coverage to the terminal is transformed. Fig. 3 is a schematic diagram illustrating a satellite for switching connection by a terminal according to an exemplary embodiment of the present application. As shown in fig. 3, at time T1, satellite 302 provides communication coverage to terminal 301. At time T2, satellite 303 is providing communication coverage to terminal 301. Although the satellite providing communication coverage to the terminal 301 has changed, the satellite 302 and the satellite 303 are connected to the same satellite gateway 304, and the satellite gateway 304 is connected to a functional module of a base station (gNB). It can be considered that the base station providing the service to the terminal is unchanged. Thus, when terminal 301 is handed over from satellite 302 to satellite 303, the configuration parameters (cell parameters of the target cell) that the base station transmits to terminal 301 may be largely the same. I.e. terminal 301 is under the coverage of satellites 302 and 303, most of the configuration parameters it uses may be the same.

In the process of switching the terminal to the satellite, the network device sends the cell parameters of the target cell to the terminal through an RRC reconfiguration message. For example, the network device carries the cell parameters of the target cell through a synchronization reconfiguration (reconfiguration wisync) cell (Information Element, IE) and sends the cell parameters to the terminal, so as to configure the cell parameters of the target cell for the terminal.

For satellites in non-geosynchronous orbit, it moves at high speed relative to a fixed location on the earth, resulting in frequent and unavoidable satellite handoffs by stationary and moving terminals. In the process of switching satellites, the network device configures cell parameters of the target cell to the terminal through an RRC reconfiguration message, and the RRC reconfiguration message sent by the network device causes a large amount of signaling overhead.

The method provided by the embodiment of the application configures the cell parameters of the target cell for the terminal by using a mode of combining the system message (System Information, SI) and the RRC message. Since the cell parameters of the target cell are configured by using the SI, the number of the cell parameters of the target cell carried by the RRC message can be reduced. And the SI is sent in a broadcast mode, and all terminals in the cell can receive the SI broadcast by the network equipment, so that signaling overhead can be reduced. Reducing the number of parameters carried by the RRC message can reduce signaling overhead for configuring cell parameters of the target cell using the RRC message.

It should be noted that, the method provided in the embodiment of the present application may be applied to NTN scenarios (such as the systems shown in fig. 1 and fig. 2), and may also be applied to terrestrial communication network (Terrestrial Networks, TN) scenarios. For example, in a system as shown in fig. 4. Fig. 4 is a schematic diagram of a system architecture of a communication system according to an embodiment of the present application. The system architecture may include: a terminal 10, an access network device 20 and a core network device 30.

The terminal 10 may refer to a UE (User Equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a wireless communication device, a User agent, or a User Equipment. Alternatively, the terminal may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol ) phone, a WLL (Wireless Local Loop, wireless local loop) station, a PDA (Personal digital Assistant), a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in 5GS (5 th Generation System, fifth generation mobile communication system) or a terminal in a future evolved PLMN (Pub 1ic Land Mobi1e Network), or the like, which the embodiment of the present application is not limited to. For convenience of description, the above-mentioned devices are collectively referred to as terminals. The number of terminals 10 is typically plural and one or more terminals 10 may be distributed within the cell managed by each access network device 20.

The access network device 20 is a device deployed in an access network to provide wireless communication functionality for the terminal 10. The access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. The names of access network device-capable devices may vary in systems employing different radio access technologies, for example in 5G NR systems, called gndeb or gNB. As communication technology evolves, the name "access network device" may change. For convenience of description, in the embodiments of the present application, the above-mentioned devices for providing the terminal 10 with a wireless communication function are collectively referred to as an access network device. Alternatively, a communication relationship may be established between the terminal 10 and the core network device 30 via the access network device 20. Illustratively, in an LTE system, the access network device 20 may be EUTRAN (Evolved Universal Terrestrial Radio Access Network, evolved universal terrestrial radio network) or one or more enodebs in EUTRAN; in a 5G NR system, access network device 20 may be a RAN or one or more gnbs in a RAN.

The core network device 30 mainly functions to provide user connection, management of users, and bearer completion of services, and to provide an interface to an external network as a bearer network. For example, core network devices in the 5G NR system may include AMF (Access and Mobility Management Function ) entities, UPF (User Plane Function, user plane function) entities, SMF (Session Management Function ) entities, and location management function (Location Management Function, LMF) entities, among others. The access network device 20 and the core network device 30 may be collectively referred to as network devices. In the embodiment of the present application, the core network device 30 is taken as an LMF network element for illustration.

In one example, access network device 20 and core network device 30 communicate with each other over some air technology, such as the NG interface in a 5G NR system. The access network device 20 and the terminal 10 communicate with each other via some over-the-air technology, e.g. Uu interface.

Fig. 5 shows a flowchart of a method for configuring cell parameters according to an embodiment of the present application. The method can be applied to network equipment. The method comprises the following steps:

step 502: and configuring cell parameters of the target cell for the terminal through the SI and RRC messages.

The target cell is a cell that the terminal may select or access during a cell handover procedure, for example, a neighbor cell of a serving cell of the terminal. The target cell may also be referred to as a candidate cell, an alternative cell, etc. for the terminal.

The SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell. Optionally, the first parameter comprises one or more parameters of the target cell and the second parameter comprises one or more parameters of the target cell. The first parameter of the target cell in the SI is different from or partially the same as the second parameter of the target cell in the RRC message. The network device sends the SI and RRC message to the terminal, thereby realizing the configuration of the cell parameters of the target cell for the terminal. Optionally, the network device is a base station, for example a gNB.

The first parameter of the target cell in SI is typically a parameter applicable to different terminals. The second parameter of the target cell in the RRC message is typically a parameter configured specifically for the terminal receiving the RRC message.

Optionally, the RRC message is an RRC reconfiguration message. Illustratively, the first parameter configuration of the target cell is in reconfigurationwithsync IE of the RRC reconfiguration message. Optionally, the first parameter includes at least one of the following parameters:

Terminal identification;

random access channel (Random Access Channel, RACH) resource allocation;

timer configuration.

Illustratively, the terminal Identity is a new UE Identity (newUE-Identity), the RACH resource configuration is a dedicated RACH configuration (RACH-configdedided), and the timer configuration specifies the configuration of the timer t 304.

The network device will broadcast the SI to the terminal. The SI includes a master message block (Master Information Block, MIB) and a series of system message blocks (System Information Block, SIBs). SIB includes SIB1 and SIBx, x is a positive integer greater than 1. Alternatively, the SI can also be acquired by the terminal through an on-demand request (on demand request) mechanism, i.e., the terminal sends a system message acquisition request to the network device, which sends a system message to the terminal in response to the request.

Optionally, the network device carries the first parameter of the target cell through MIB, carries the first parameter of the target cell through SIB1, carries the first parameter of the target cell through SIBx, or carries the first parameter of the target cell through a plurality of MIB, SIB1 and SIBx together. And, one or more SIBs can be included in the SIBx.

The broadcasted SI has a corresponding system message broadcast period. Optionally, the network device sends SI and RRC messages to the terminal simultaneously, or sends SI to the terminal before sending the RRC message, or sends SI to the terminal after sending the RRC message. The embodiment of the application does not limit the time when the network equipment sends the SI and RRC messages.

Optionally, the SI comprises a first parameter of the at least one target cell. I.e. one or more target cells, in which case the SI comprises the first parameter of one target cell, and in which case the SI comprises the first parameter of each of the plurality of target cells. The first parameters of different target cells are the same or different.

Optionally, the first parameter of each target cell in the SI comprises a plurality of sets of parameters, and each set of parameters is associated with a set identification. For example, SI comprises a first parameter of target cell 1 and a first parameter of target cell 2, the first parameter of target cell 1 comprising 2 sets of parameters, wherein the 1 st set is associated with group identity 1 and the 2 nd set is associated with group identity 2. The first parameters of the target cell 2 comprise 3 groups of parameters, wherein group 1 is associated with group identity 3, group 2 is associated with group identity 4, and group 3 is associated with group identity 5.

Optionally, the first parameter of each target cell in the SI is associated with a cell identity of the target cell. For example, SI includes first parameters of target cell 1, target cell 2, and target cell 3, the first parameter of target cell 1 being associated with cell identity 1, the first parameter of target cell 2 being associated with cell identity 2, the first parameter of target cell 3 being associated with cell identity 3.

Optionally, the first parameter includes at least one of the following parameters:

downlink common configuration (downlink configcommon);

uplink common configuration (uplink configcommon);

NTN parameter configuration (NTN-Config).

Wherein the NTN parameter configuration and other parameter configurations in the first cell parameter belong to different SIBs of the SI. For example, the downlink common configuration and the uplink common configuration are carried in the SIBa, the NTN parameter configuration is carried in the SIBb, a and b are positive integers, and a and b are different.

The RRC message is used to instruct the terminal to use the second parameter of the target cell, that is, the terminal uses the second parameter of the target cell when the terminal needs to use the cell parameter of the target cell after receiving the RRC message. The RRC message can also indicate a first parameter of a target cell used by the terminal in the SI.

For the case where the RRC message explicitly instructs the terminal to use the first parameter of the target cell in SI:

optionally, the RRC message also carries a cell identity and/or a group identity. Wherein the cell identity and/or the group identity are used for indicating the terminal to use the first parameter of the target cell in the SI. For example, the RRC message carries a cell identifier, and after receiving the RRC message, the terminal can use a first parameter of the target cell corresponding to the cell identifier. The RRC message carries a group identifier, and after the terminal receives the RRC message, the terminal can use a parameter corresponding to the group identifier in the first parameter of the target cell. The RRC message carries a cell identifier and a group identifier, and after the terminal receives the RRC message, the terminal can use a parameter corresponding to the group identifier in first parameters of the target cell corresponding to the cell identifier.

For the case where the RRC message implicitly indicates that the terminal uses the first parameter of the target cell in SI:

optionally, the RRC message may also implicitly instruct the terminal to use the first parameter of the target cell in SI. For example, the RRC message is used to implicitly instruct the terminal to use the first parameter of the target cell in the SI based on the protocol.

Optionally, the protocol includes at least one of:

when the RRC message does not include the first parameter of the target cell required by the terminal, the terminal uses the first parameter of the target cell required by the terminal in the SI;

the terminal uses a default cell parameter value when the RRC message does not include the first parameter of the target cell required by the terminal and the SI does not include the first parameter of the target cell required by the terminal.

Wherein the default cell parameter values are configured at the network side. The first parameters of the target cell needed by the terminal comprise the cell parameters of the target cell currently needed by the terminal.

An example will be described in which SSB-periodic serving cell parameters are configured. For SSB period (in ms) parameters for rate matching, the UE uses the value ms5 (default parameter value) if the parameter value does not exist in the RRC message and the system information does not provide the parameter value. The UE uses the parameter value provided by the system message if the parameter value does not exist in the RRC message but the parameter value is provided by the system message. (The SSB periodicity in ms for the rate matching purpose. If the field is absent and if the field is not provided by the system information, the UE applies the value ms5.If the file is absent but the field is provided by the system information, the UE applies the value provided by the system information.)

Alternatively, the RRC message can simultaneously display the first parameter indicating that the terminal uses the target cell in the SI, and the first parameter implicitly indicating that the terminal uses the target cell in the SI. For example, among the parameters other than the first parameter of the target cell used by the terminal indicated by the RRC message display, if the RRC message does not include the first parameter of the target cell required by the terminal, the terminal determines the used cell parameter through the above protocol.

Optionally, at least one of the SI and RRC messages carries cell parameters necessary for the terminal to access the target cell. Therefore, the cell parameters of the target cell configured for the terminal through the SI and RRC messages can be ensured, and the terminal can be accessed to the target cell. The necessary cell parameter is illustratively a downlink con figcommon parameter of the target cell.

Alternatively, the first parameter of the target cell in SI may be partially identical to the second parameter of the target cell in RRC message. And when the first parameter of the target cell in the SI and the second parameter of the target cell in the RRC message have the repetition parameters, the terminal determines to use the repetition parameters in the RRC message or use the repetition parameters in the SI according to the indication of the RRC message. Alternatively, the RRC message is implemented as a cell parameter for which the terminal indicates use by carrying indication information.

Alternatively, the network device can configure the cell parameters of the target cell for the terminal in other ways in addition to SI and RRC messages. For example, the cell parameters of the target cell are configured for the terminal through a plurality of signaling. Optionally, each of the plurality of signaling carries a cell parameter of the target cell, and the cell parameters of the target cells carried by any two of the plurality of signaling are different or partially the same. The network device configures cell parameters of the target cell for the terminal by the first signaling and the second signaling. The first signaling carries a first parameter of the target cell, and the second signaling carries a second parameter of the target cell. The network device configures cell parameters of the target cell for the terminal by sending the first signaling and the second signaling to the terminal.

In summary, the method provided in this embodiment configures the cell parameters of the target cell for the terminal by using the combination of SI and RRC messages. Since the cell parameters of the target cell are configured by using the SI, the number of the cell parameters of the target cell carried by the RRC message can be reduced. And the SI is sent in a broadcast mode, and all terminals in the cell can receive the SI broadcast by the network equipment, so that signaling overhead can be reduced. Reducing the number of parameters carried by the RRC message can reduce signaling overhead for configuring cell parameters of the target cell using the RRC message.

Fig. 6 is a flowchart of a method for configuring cell parameters according to an embodiment of the present application. The method can be applied to the terminal. The method comprises the following steps:

step 602: and receiving SI and RRC messages sent by the network equipment and used for configuring cell parameters of the target cell for the terminal.

The target cell is a cell that the terminal may select or access during a cell handover procedure, for example, a neighbor cell of a serving cell of the terminal. The SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell. Optionally, the first parameter comprises one or more parameters of the target cell and the second parameter comprises one or more parameters of the target cell. The first parameter of the target cell in the SI is different from or partially the same as the second parameter of the target cell in the RRC message. The network device sends the SI and RRC message to the terminal, thereby realizing the configuration of the cell parameters of the target cell for the terminal.

terminal identification;

RACH resource configuration;

timer configuration.

Illustratively, the terminal is identified as newUE-Identity, the RACH resource is configured as a RACH-ConfigDedimidiate, and the timer configuration specifies the configuration of the timer t 304.

The network device will broadcast the SI to the terminal. The SI includes a MIB and a series of system message blocks SIBs. SIB includes SIB1 and SIBx, x is a positive integer greater than 1. Alternatively, the SI can also be acquired by the terminal through an on-demand request mechanism. Optionally, the network device carries the first parameter of the target cell through MIB, carries the first parameter of the target cell through SIB1, carries the first parameter of the target cell through SIBx, or carries the first parameter of the target cell through a plurality of MIB, SIB1 and SIBx together. And, one or more SIBs can be included in the SIBx.

Optionally, the SI comprises a first parameter of the at least one target cell. I.e. one or more target cells, in which case the SI comprises the first parameter of one target cell, and in which case the SI comprises the first parameter of each of the plurality of target cells. The first parameters of different target cells are the same or different. Optionally, the first parameter of each target cell in the SI comprises a plurality of sets of parameters, and each set of parameters is associated with a set identification. Optionally, the first parameter of each target cell in the SI is associated with a cell identity of the target cell.

downlink common configuration;

uplink common configuration;

NTN parameter configuration.

Wherein the NTN parameter configuration and other parameter configurations in the first cell parameter belong to different SIBs of the SI.

Optionally, the protocol includes at least one of:

Optionally, at least one of the SI and RRC messages carries cell parameters necessary for the terminal to access the target cell. Therefore, the cell parameters of the target cell configured for the terminal through the SI and RRC messages can be ensured, and the terminal can be accessed into the target cell.

Alternatively, the first parameter of the target cell in SI may be partially identical to the second parameter of the target cell in RRC message. When there is a repetition parameter in the first parameter of the target cell in the SI and the second parameter of the target cell in the RRC message, the terminal determines to use the repetition parameter in the RRC message or use the repetition parameter in the SI according to the indication of the RRC message. Alternatively, the RRC message is implemented as a cell parameter for which the terminal indicates use by carrying indication information.

Fig. 7 is a flowchart of a method for configuring cell parameters according to an embodiment of the present application. The method can be applied to the terminal. The method comprises the following steps:

step 702: and receiving SI and RRC messages sent by the network equipment and used for configuring cell parameters of the target cell for the terminal.

The terminal receives the first parameter and the second parameter of the target cell, so as to determine the parameter configuration of the target cell.

terminal identification;

RACH resource configuration;

timer configuration.

downlink common configuration;

uplink common configuration;

NTN parameter configuration.

Optionally, the protocol includes at least one of:

Step 704: and when the first parameter of the target cell in the SI and the second parameter of the target cell in the RRC message have the repetition parameters, determining to use the repetition parameters in the RRC message or use the repetition parameters in the SI according to the indication of the RRC message.

Alternatively, the first parameter of the target cell in SI may be partially identical to the second parameter of the target cell in RRC message. In this case, the terminal determines to use the repetition parameter in the RRC message or to use the repetition parameter in the SI according to the indication of the RRC message. Alternatively, the RRC message is implemented as a cell parameter for which the terminal indicates use by carrying indication information.

Fig. 8 is a flowchart of a method for configuring cell parameters according to an embodiment of the present application. The method may be applied in a system as shown in fig. 1, 2 or 4. The method comprises the following steps:

Step 802: the network equipment configures the cell parameters of the target cell for the terminal through the SI and RRC messages.

Optionally, the RRC message is an RRC reconfiguration message. Illustratively, the first parameter configuration of the target cell is in reconfigurationwithsync IE of the RRC reconfiguration message. Optionally, the first parameter comprises at least one of the following parameters:

Terminal identification;

RACH resource configuration;

timer configuration.

downlink common configuration;

uplink common configuration;

NTN parameter configuration.

Optionally, the protocol includes at least one of:

Step 804: and when the first parameter of the target cell in the SI and the second parameter of the target cell in the RRC message have the repetition parameters, the terminal determines to use the repetition parameters in the RRC message or use the repetition parameters in the SI according to the indication of the RRC message.

It should be noted that, the sequence of the steps of the method provided in the embodiment of the present application may be appropriately adjusted, the steps may also be increased or decreased according to the situation, and any method that is easily conceivable to be changed by those skilled in the art within the technical scope of the present application should be covered within the protection scope of the present application, so that no further description is given.

Fig. 9 is a block diagram illustrating a configuration apparatus of cell parameters according to an exemplary embodiment of the present application. As shown in fig. 9, the apparatus includes:

a sending module 901, configured to configure cell parameters of a target cell for a terminal through SI and RRC messages;

In an alternative design, the SI may include at least one first parameter of the target cell.

In an alternative design, the first parameter of each of the target cells in the SI includes multiple sets of parameters, and each set of parameters is associated with a set identification.

In an alternative design, the first parameter of each of the target cells in the SI is associated with a cell identity of the target cell.

In an alternative design, the first parameter includes at least one of the following:

downlink public configuration;

uplink public configuration;

NTN parameter configuration.

In an alternative design, the RRC message is used to instruct the terminal to use the second parameter of the target cell.

In an alternative design, the RRC message also carries a cell identity and/or a group identity; the cell identity and/or the group identity is used to instruct the terminal to use a first parameter of the target cell in the SI.

In an alternative design, the RRC message is used to implicitly instruct the terminal to use the first parameter of the target cell in the SI based on a protocol.

In an alternative design, the protocol includes at least one of:

when the RRC message does not include the first parameter of the target cell required by the terminal and the SI does not include the first parameter of the target cell required by the terminal, the terminal uses a default cell parameter value.

In an alternative design, at least one of the SI and RRC messages carries cell parameters necessary for the terminal to access the target cell.

In an alternative design, when there is a repetition parameter in the first parameter of the target cell in the SI and the second parameter of the target cell in the RRC message, the terminal determines to use the repetition parameter in the RRC message or to use the repetition parameter in the SI according to the indication of the RRC message.

Fig. 10 is a block diagram illustrating a configuration apparatus of cell parameters according to an exemplary embodiment of the present application. As shown in fig. 10, the apparatus includes:

a receiving module 1001, configured to receive SI and RRC messages sent by a network device and used to configure a cell parameter of a target cell for a terminal;

downlink public configuration;

uplink public configuration;

NTN parameter configuration.

In an alternative design, the protocol includes at least one of:

In an alternative design, the apparatus further comprises:

a determining module 1002, configured to determine, when there is a repetition parameter in the first parameter of the target cell in the SI and the second parameter of the target cell in the RRC message, to use the repetition parameter in the RRC message or use the repetition parameter in the SI according to the indication of the RRC message.

It should be noted that, when the apparatus provided in the foregoing embodiment performs the functions thereof, only the division of the respective functional modules is used as an example, in practical application, the foregoing functional allocation may be performed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to perform all or part of the functions described above.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 11 shows a schematic structural diagram of a communication device (terminal or network device) according to an exemplary embodiment of the present application, where the communication device 110 includes: a processor 1101, a receiver 1102, a transmitter 1103, a memory 1104 and a bus 1105.

The processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications and information processing by running software programs and modules.

The receiver 1102 and the transmitter 1103 may be implemented as one communication component, which may be a communication chip.

The memory 1104 is connected to the processor 1101 through a bus 1105.

The memory 1104 may be used to store at least one instruction that the processor 1101 uses to execute to implement the various steps of the method embodiments described above.

Further, the memory 1104 may be implemented by any type or combination of volatile or nonvolatile memory devices including, but not limited to: magnetic or optical disks, electrically erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EEPROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), static random access Memory (Static Random Access Memory, SRAM), read-Only Memory (ROM), magnetic Memory, flash Memory, programmable Read-Only Memory (Programmable Read-Only Memory, PROM).

When the communication device is implemented as a terminal, the processor and the transceiver in the communication device according to the embodiments of the present application may be implemented together as one communication chip, or the transceiver may form the communication chip separately. Wherein, the transmitter in the transceiver performs the transmitting step performed by the terminal in any of the above-mentioned methods, the receiver in the transceiver performs the receiving step performed by the terminal in any of the above-mentioned methods, and the processor performs steps other than the transmitting and receiving steps, which are not described herein.

When the communication device is implemented as a network device (access network device or core network device), the processor and the transceiver in the communication device according to the embodiments of the present application may be implemented together as one communication chip, or the transceiver may form the communication chip separately. Wherein, the transmitter in the transceiver performs the transmitting step performed by the network device in any of the above-mentioned methods, the receiver in the transceiver performs the receiving step performed by the network device in any of the above-mentioned methods, and the processor performs steps other than the transmitting and receiving steps, which are not described herein.

In an exemplary embodiment, there is also provided a computer readable storage medium having stored therein at least one instruction, at least one program, a code set, or a set of instructions, which are loaded and executed by the processor to implement the method for configuring cell parameters provided by the above-described respective method embodiments.

In an exemplary embodiment, a chip is also provided, which includes programmable logic circuits and/or program instructions, for implementing the method for configuring cell parameters provided by the above-described respective method embodiments when the chip is run on a communication device.

In an exemplary embodiment, a computer program product is also provided, which, when run on a processor of a computer device, causes the computer device to perform the above-described method of configuring cell parameters.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The foregoing description of the exemplary embodiments of the present application is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the invention.

Claims

A method of configuring cell parameters, the method being performed by a network device, the method comprising:

configuring cell parameters of a target cell for a terminal through a system message SI and a radio resource control RRC message;

wherein the SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell.
The method of claim 1, wherein the SI comprises a first parameter of at least one of the target cells.
The method of claim 2, wherein the first parameter of each of the target cells in the SI comprises a plurality of sets of parameters, and wherein each set of parameters is associated with a set identification.
The method of claim 2, wherein the first parameter of each of the target cells in the SI is associated with a cell identity of the target cell.
The method of claim 1, wherein the first parameter comprises at least one of:

Downlink public configuration;

uplink public configuration;

non-terrestrial communication network NTN parameter configuration.
The method according to claim 1, characterized in that the RRC message is used for instructing the terminal to use the second parameter of the target cell.
The method according to claim 1, wherein the RRC message also carries a cell identity and/or a group identity;

the cell identity and/or the group identity is used to instruct the terminal to use a first parameter of the target cell in the SI.
The method of claim 1, wherein the RRC message is used to implicitly instruct the terminal to use the first parameter of the target cell in the SI based on a protocol.
The method of claim 8, wherein the protocol comprises at least one of:

when the RRC message does not include the first parameter of the target cell required by the terminal, the terminal uses the first parameter of the target cell required by the terminal in the SI;

when the RRC message does not include the first parameter of the target cell required by the terminal and the SI does not include the first parameter of the target cell required by the terminal, the terminal uses a default cell parameter value.
The method according to any of the claims 1 to 9, characterized in that at least one of the SI and the RRC message carries the cell parameters necessary for the terminal to access the target cell.
The method according to any of the claims 1 to 9, characterized in that the terminal determines to use the repetition parameter in the RRC message or to use the repetition parameter in the SI according to the indication of the RRC message when there is a repetition parameter in the first parameter of the target cell in the SI and in the second parameter of the target cell in the RRC message.
A method for configuring cell parameters, the method being performed by a terminal, the method comprising:

receiving SI and RRC messages sent by network equipment and used for configuring cell parameters of a target cell for the terminal;

wherein the SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell.
The method of claim 12, wherein the SI comprises a first parameter of at least one of the target cells.
The method of claim 13, wherein the first parameter of each of the target cells in the SI comprises a plurality of sets of parameters, and wherein each set of parameters is associated with a set identification.
The method of claim 13, wherein the first parameter of each of the target cells in the SI is associated with a cell identity of the target cell.
The method of claim 12, wherein the first parameter comprises at least one of:

downlink public configuration;

uplink public configuration;

NTN parameter configuration.
The method of claim 12, wherein the RRC message is used to instruct the terminal to use a second parameter of the target cell.
The method according to claim 12, wherein the RRC message also carries a cell identity and/or a group identity;

the cell identity and/or the group identity is used to instruct the terminal to use a first parameter of the target cell in the SI.
The method of claim 12, wherein the RRC message is used to implicitly instruct the terminal to use the first parameter of the target cell in the SI based on a protocol.
The method of claim 19, wherein the protocol comprises at least one of:

when the RRC message does not include the first parameter of the target cell required by the terminal, the terminal uses the first parameter of the target cell required by the terminal in the SI;

When the RRC message does not include the first parameter of the target cell required by the terminal and the SI does not include the first parameter of the target cell required by the terminal, the terminal uses a default cell parameter value.
The method according to any of the claims 12 to 20, characterized in that at least one of the SI and the RRC message carries the cell parameters necessary for the terminal to access the target cell.
The method according to any one of claims 12 to 20, further comprising:

and when the first parameter of the target cell in the SI and the second parameter of the target cell in the RRC message have repeated parameters, determining to use the repeated parameters in the RRC message or the repeated parameters in the SI according to the indication of the RRC message.
A device for configuring cell parameters, the device comprising:

a sending module, configured to configure cell parameters of a target cell for a terminal through SI and RRC messages;

wherein the SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell.
A device for configuring cell parameters, the device comprising:

The receiving module is used for receiving SI and RRC messages sent by the network equipment and used for configuring cell parameters of a target cell for the terminal;

wherein the SI includes a first parameter of the target cell and the RRC message includes a second parameter of the target cell.
A network device, the network device comprising:

a processor;

a transceiver coupled to the processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to load and execute the executable instructions to implement the method of configuring cell parameters according to any of claims 1 to 11.
A terminal, the terminal comprising:

a processor;

a transceiver coupled to the processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to load and execute the executable instructions to implement the method of configuring cell parameters according to any of claims 12 to 22.
A computer readable storage medium having stored therein executable instructions that are loaded and executed by a processor to implement the method of configuring cell parameters of any of claims 1 to 22.
A chip comprising programmable logic circuits or programs for implementing a method of configuring cell parameters according to any one of claims 1 to 22.