CN117692146A

CN117692146A - System information message receiving method, system information message sending method, terminal and network side equipment

Info

Publication number: CN117692146A
Application number: CN202211033413.0A
Authority: CN
Inventors: 鲍炜; 杨晓东; 何燃燃
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2024-03-12
Also published as: WO2024041470A1

Abstract

The application discloses a system information message receiving method, a sending method, a terminal and network side equipment, which belong to the technical field of communication, and the system information message receiving method of the embodiment of the application comprises the following steps: the terminal receives a first system information message under a first condition, wherein the first system information message carries signature information of a second system information message; wherein the first condition includes at least one of: the state of the second system information message is sending; the terminal indicates to the network equipment that signature information is needed; the terminal has indicated to the network side device that the second system information message is required.

Description

System information message receiving method, system information message sending method, terminal and network side equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a system information message receiving method, a system information message sending method, a terminal and network side equipment.

Background

In order to avoid security problems such as access of a terminal to illegal network side equipment or tampering of system information messages in a communication system, a common technical means is to perform signature verification on system information sent by the network side equipment. Specifically, the network side device broadcasts the signature information of the system information, and the state of the network side device for the system information carrying the signature information is always kept to be transmitted at present, that is, the network side device transmits the system information on each period of the system information, which results in larger air interface resource overhead.

Disclosure of Invention

The embodiment of the application provides a system information message receiving method, a system information message sending method, a terminal and network side equipment, which can solve the problem of high air interface resource overhead.

In a first aspect, a system information message receiving method is provided, including:

the terminal receives a first system information message under a first condition, wherein the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

the terminal indicates to the network equipment that signature information is needed;

the terminal has indicated to the network side device that the second system information message is required.

In a second aspect, a system information message sending method is provided, including:

the method comprises the steps that network side equipment sends a first system information message under a first condition, wherein the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

the network side equipment receives an indication for indicating that signature information is needed;

The network side equipment receives an indication for indicating that the second system information message is needed.

In a third aspect, there is provided a system information message receiving apparatus including:

the first receiving module is used for receiving a first system information message under a first condition, wherein the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

the terminal corresponding to the device indicates the information needing to be signed to the network equipment;

In a fourth aspect, there is provided a system information message transmitting apparatus including:

the first sending module is used for sending a first system information message under a first condition, wherein the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

the network side equipment corresponding to the device receives an indication for indicating that signature information is needed;

In a fifth aspect, a terminal is provided, the terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of a system information message receiving method as provided by embodiments of the present application.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface is configured to receive a first system information message under a first condition, where the first system information message carries signature information of a second system information message; wherein the first condition includes at least one of: the state of the second system information message is sending; the terminal corresponding to the device indicates the information needing to be signed to the network equipment; the terminal has indicated to the network side device that the second system information message is required.

In a seventh aspect, a network side device is provided, where the network side device includes a processor and a memory, where the memory stores a program or an instruction that can be executed by the processor, where the program or the instruction implements the steps of the system information cancellation transmission method provided in the embodiment of the present application.

An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to send a first system information message under a first condition, where the first system information message carries signature information of a second system information message; wherein the first condition includes at least one of: the state of the second system information message is sending; the network side equipment corresponding to the device receives an indication for indicating that signature information is needed; the network side equipment receives an indication for indicating that the second system information message is needed.

A ninth aspect provides a system information cancellation transmission system, including: the terminal can be used for executing the steps of the system information message receiving method provided by the embodiment of the application, and the network side device can be used for executing the steps of the system information cancellation transmitting method provided by the embodiment of the application.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of a system information message receiving method as provided by the embodiments of the present application, or implement the steps of a system information cancellation transmission method as provided by the embodiments of the present application.

In an eleventh aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions, implement a system information message receiving method provided by an embodiment of the present application, or implement a system information cancellation sending method provided by an embodiment of the present application.

In a twelfth aspect, a computer program/program product is provided, which is stored in a storage medium, and which is executed by at least one processor to implement the steps of the system information message receiving method as provided by the embodiments of the present application, or which is executed by at least one processor to implement the steps of the system information cancellation transmission method as provided by the embodiments of the present application.

In the embodiment of the application, under a first condition, a terminal receives a first system information message, wherein the first system information message carries signature information of a second system information message; wherein the first condition includes at least one of: the state of the second system information message is sending; the terminal indicates to the network equipment that signature information is needed; the terminal has indicated to the network side device that the second system information message is required. In this way, the first system information message can be transferred between the network side equipment and the terminal under the first condition, so that the air interface resource can be saved.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a flowchart of a system information message receiving method provided in an embodiment of the present application;

fig. 3 is a flowchart of a system information cancellation transmission method provided in an embodiment of the present application;

fig. 4 is a block diagram of a system information message receiving apparatus according to an embodiment of the present application;

fig. 5 is a block diagram of a system information cancellation transmitting device provided in an embodiment of the present application;

fig. 6 is a block diagram of a communication device according to an embodiment of the present application;

fig. 7 is a block diagram of a terminal according to an embodiment of the present application;

fig. 8 is a block diagram of a network side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

The following describes in detail a system information message receiving method, a system information message sending method, a terminal and a network side device provided in the embodiments of the present application through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a system information message receiving method according to an embodiment of the present application, as shown in fig. 2, including the following steps:

step 201, the terminal receives a first system information message (System Information message, SI message) under a first condition, where the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

The terminal receiving the first system information message under the first condition may be understood that the terminal receives the first system information message under the condition that the first condition is satisfied.

In one implementation, the terminal does not receive the first system information message if the first condition is not satisfied.

The second system information message may be an SI message including one or more system information blocks (System Information Block, SIBs), which may be other SIBs, i.e., SIBs other than the master information block (Master Information Block, MIB) and SIB1. In addition, in case that the second system information message includes a plurality of SIBs, the plurality of SIBs have the same transmission period. In some embodiments, the second system information message may also be MIB or SIB1.

In some embodiments, the second system information message may also be a positioning system broadcast message (Positioning System Information Block, pos SIB).

In this embodiment of the present application, the status of the first system information message and the second system information message includes sending or not sending, for example: in addition to MIB and SIB1, the status of other SI messages may be carried in MIB or SIB1. For example, the system information broadcast status (si-BroadcastStatus) in SIB1, and the value of the system information broadcast status includes broadcasting and non-broadcasting (notbroadcaststatus). And the status of the first system information message and the second system information message as sent may be expressed as being sent or being broadcast. The state of the first system information message and the second system information message being sent specifically may be understood that the state of the first system information message and the second system information message in the corresponding periods is sending, for example, the state in the corresponding sending window is sending, and the network side device sends the first system information message and the second system information message in the sending window corresponding to the first system information message and the second system information message. The states of MIB and SIB1 can only be transmitted, i.e. not transmitted; thus, the terminal need not be indicated by signaling.

In addition, in the embodiment of the present application, the transmission window refers to a time domain transmission window.

Wherein, the state of the system information message is not transmitted may be that the system information message is not broadcast, is not being broadcast or is in a non-transmitting state. Specifically, the window may be sent in the corresponding time domain, and the network side device does not send/broadcast the corresponding system information message.

In some embodiments, the state of the first system information message and the state of the second system information are synchronized, for example: when the state of the second system information is transmission, the state of the first system information is transmission, and when the state of the second system information is not transmission, the state of the first system information is not transmission, and the state of the first system information message and the state of the second system information are consistent.

It should be noted that, since the second system information message may be sent periodically, the time for the network side device to send the second system information message may be before or after the step 201, or overlap with the step 201 in time, or be sent before and after the step 201.

The terminal indicating that the signature information is needed to the network side device may be that, before step 201, the terminal has indicated that the signature information is needed to the network side device in an explicit or implicit manner, for example, the signature information of the second system information message is needed, or the signature information of a plurality of system information messages including the second system information message is needed, or the terminal supports signature verification capability. Therefore, the terminal can determine whether the signature information needs to be sent or not according to the indication of the terminal by indicating whether the signature information needs to be received or not.

The indication that the terminal needs the second system information message to the network side device may be that, in a case where the second system information message is sent based on a request (on demand), before step 201, the terminal indicates that the second system information message needs the network side device in an explicit or implicit manner. If the second system information message is not sent based on the request mode, the terminal may not indicate to the network side device that the second system information message is needed, for example, the network side device defaults that the terminal exists in the cell and needs the second system information message, or the network side device defaults to send the second system information message in a sending window corresponding to the second system information message.

In this embodiment of the present application, because the first condition includes that the terminal has indicated to the network side device that the second system information message is needed, it may be achieved that the terminal only needs to indicate to the network side device that the second system information message is needed, and the network side device may send the second system information message and the first system information message carrying the signature information of the second system information message. That is, the terminal only needs to apply for the second system information message to the network side device, and does not need to apply for the first system information message, and the network side device will send the second system information message and the first system information message carrying the signature information of the second system information message, so that the power consumption of the terminal and the network side device can be saved, and the air interface resource can be saved.

It should be noted that, in some embodiments, the first condition may include that only the state of the second system information message is transmission, that is, the network side device ensures that the state of the second system information message is consistent with the state of the first system information message. This can avoid attempting to receive the first system information message if the first system information message is not transmitted; in some embodiments, the first condition may only include that the terminal has indicated to the network side device that signature information is needed, so that the terminal may only receive the first system information message if the network broadcasts the system information message carrying the signature information; in some embodiments, the first condition may only include that the terminal has indicated to the network side device that the second system information message is needed, for example, the network side device ensures that the states of the second system information message and the first system information message are consistent, which may enable the terminal to attempt to receive the first system information message only if the network broadcasts the first system information message.

As an optional implementation manner, the terminal indicating to the network side device that signature information is needed and the terminal indicating to the network side device that the second system information message is needed include, after sending the related indication, receiving, by the terminal, the first system information message after receiving the corresponding feedback information sent by the network side device.

In the embodiment of the application, the first system information message can be transferred between the network side equipment and the terminal under the first condition through the steps, so that the air interface resource can be saved. In addition, the network side equipment also sends the first system information message under the first condition, so that the power consumption of the network side equipment can be saved, the air interface resources can be saved, and the network interference can be reduced.

In some embodiments, the generating, by the network side device, the signature information of the second system information message may be that all or part of the second system information message is taken as input, and the signature information of the second system information message is generated through a generating operation; the second system information message is also referred to as a signed system information message.

In some embodiments, the signature information of the second system information message may be signature information of the second system information message by the network side device or the cell.

In some embodiments, the terminal may verify at least one of the following based on the signature information of the second system information message:

whether the second system information message is sent by a network-side device that is legal or meets an expected condition (e.g., deployed by an operator corresponding to a public land mobile network (Public Land Mobile Network, PLMN) registered by the terminal);

Whether the second system information message is tampered with.

That is, the signature information in the embodiment of the present application is information for verifying at least one of the above items.

As an optional implementation manner, the sending the second system information message includes:

the third system information message received by the terminal indicates the state of the second system information message to be sending;

the third system information message is MIB or SIB1.

The status of the second system information message is broadcasting status (broadcasting), which may be specifically indicated by si-BroadcastStatus field (field) in SIB1, for example, there is a field in SIB 1:

si-BroadcastStatus ENUMERATED{broadcasting,notBroadcasting},

the field si-BroadcastStatus has two values: broadacasting and notbroadacasting.

si-BroadcastStatus: the corresponding states are as follows:

broadcasting: transmitting

notbroad casting: and not transmit.

As an optional implementation manner, the status of the second system information message is not sent, including:

the third system information message received by the terminal indicates that the state of the second system information message is not sent or broadcast or not being broadcast (notbaradicasting);

the third system information message is MIB or SIB1 as indicated by si-BroadcastStatus field (field) in SIB1.

The state of the first system information message refers to the state of the second system information, which is not described herein.

In this embodiment, it may be realized that whether the status of the second system information message is transmission is determined through MIB or SIB1 received by the terminal, so that the first system information message is received in case that the status of the second system information message is transmission. Thus, since whether the state of the second system information message is transmitted is indicated by the MIB or SIB1, it is possible to avoid the introduction of an additional system information indication field, such as an indication field for indicating the state of the first system information message, to save transmission overhead.

the network side equipment indicates the network side equipment to broadcast the second system information message in a first time window, wherein the first time window is a time window corresponding to the second system information message.

The first time window may be a time window corresponding to each period when the second system information message is sent periodically. For example: the first time window is a potential time domain position range for indicating the network side device to broadcast the second system information message, or the first time window is a potential time domain position range for indicating the terminal to receive the second system information message. Obviously, the range of the potential time domain position of the terminal receiving the second system information message is consistent with the range of the potential time domain position of the network side device broadcasting the second system information message.

The embodiment can realize that the terminal receives the first system information message under the condition that the network side equipment broadcasts the second system information message in the first time window.

As an optional implementation manner, the sending the state of the first system information message includes:

the network side equipment indicates the network side equipment to broadcast the first system information message in a second time window, wherein the second time window is a time window corresponding to the first system information message.

Optionally, in the case that the state of the second system information message in the first time window is not sent, the terminal does not receive the first system information message in a second time window, where the second time window is a time window corresponding to the first system information message.

The second time window may be a potential time domain location range for instructing the network side device to broadcast the first system information message, or the second time window may be a potential time domain location range for instructing the terminal to receive the first system information message. Obviously, the range of the potential time domain position of the terminal receiving the first system information message is consistent with the range of the potential time domain position of the network side device broadcasting the first system information message.

In this embodiment, it is possible to realize that the states of the first system information message and the second system information message are kept identical, that is, the states of the signature information and the signed system information are kept identical. For example: if the SI message X is in a broadcasting state, the SI message Y in which the corresponding signature information is located is also set to be in a broadcasting state; if the SI message X is in an un-broadcast state, the SI message Y in which the corresponding signature information is located is also set to be in an un-broadcast state.

In addition, in some embodiments, MIB and SIB1 may be always in a broadcast state, and SI message in which signature information of MIB and SIB1 is located is also always in a broadcast state.

As an alternative embodiment, in the case that the second system information message is MIB or SIB1, the first system information message satisfies at least one of the following:

a system information message dedicated to carrying signature information of the MIB or SIB 1;

unlike the fourth system information message, the fourth system information message is a system information message for carrying signature information of other system information (other SI) which is system information other than the MIB and SIB 1.

The system information message dedicated for carrying the signature information may be understood that, when the second system information message is MIB or SIB1, the first system information message is only used for carrying the SIB where the signature information is located, but not carrying other SIBs, so that the system information message dedicated for carrying the signature information is used for sending the signature information of MIB or SIB1, thereby reducing complexity.

The above-mentioned difference from the fourth system information message is understood to mean that the system information message carrying the signature information of MIB or SIB1 is different from the system information message carrying the signature information of other system information, so that the first system information message and the fourth system information message can be transmitted in a different manner due to the difference.

For example: signature information carrying MIB or SIB1 is always broadcast (without terminal request); the system information message carrying signature information of other system information may be broadcast based on a terminal request (on demand mode).

In one embodiment, the following may be used:

the terminal receives SIB1 and/or MIB and SI message Y;

the terminal verifies SIB1 and/or MIB based on the signature information in the received SI message Y.

The SI message Y and the SI message Z carrying the other SI are different SI messages; or (b)

SI message Y carrying the MIB/SIB1 signature is different from SI messages carrying the signatures of other SI messages.

As an alternative embodiment, the method further comprises:

the terminal receives a third system information message, wherein the third system information message is MIB or SIB1, and in the case that the third system information message implicitly indicates the state of the first system information message:

the terminal determines that the state of the first system information message is sending under the condition that the state of the second system information message is sending; or (b)

The terminal determines that the state of the first system information message is not transmitted under the condition that the state of the second system information message is not transmitted;

and the terminal receives the first system information message under the condition that the state of the first system information message is sending.

In this embodiment, the second system information message contains other system information than MIB or SIB 1.

In this embodiment, it may be implemented that the state of the second system information message is only indicated in MIB or SIB1, and the state of the first system information message is implicitly indicated by indicating the transmission of the second system information message, so that signaling overhead of MIB or SIB1 is saved, that is, the state of the first system information message is determined according to the state of the second system information message.

It should be noted that in some embodiments, MIB or SIB1 may explicitly indicate the state of the first system information message.

In one embodiment, the following is provided:

the terminal receives MIB or SIB1 indicating whether other system information messages (other than SIB1 and MIB's other SI message) are being broadcast;

mode one, MIB or SIB1 explicitly indicates whether SI message Y carrying signature information is being broadcast, i.e. an information bit in MIB or SIB1 indicates whether SI message Y is being broadcast;

mode two, MIB or SIB1 implicitly indicates whether SI message Y carrying signature information is being broadcast, i.e. no information bit in MIB or SIB1 indicates whether SI message Y is being broadcast. If the signed SI message X is being broadcast, then SI message Y carrying the signature information of SI message X is being broadcast; if the SI message Y carries signature information of one or more SI messages, when none of the one or more SI messages is being broadcast, the SI message Y is not being broadcast.

If MIB or SIB1 indicates that SI message X required by the terminal is being broadcast, the terminal receives the required SI message X in a receiving window of one SI message X, and SI message Y corresponding to the SI message X in a receiving window of the SI message Y.

And the terminal verifies the SI message X based on the received signature information in the SI message Y.

It should be noted that, when the network side device performs SI message transmission, a similar binding relationship is followed. That is, the signed SI message X and the SI message Y carrying the signature information are in agreement, and are being transmitted or not transmitted.

As an optional implementation manner, the indicating that the second system information message is needed to the network side device includes:

the terminal sends a system information request (SI req) to the network side device, the system information request being used for requesting the second system information message;

the method further comprises the steps of:

and the terminal receives the second system information message sent by the network side equipment.

The system information request may be message 1 (msg 1) or message 3 (msg 3) in the random access procedure, or other uplink messages, which is not limited.

In this embodiment, it may be achieved that the terminal only needs to send a system information request for the second system information message, and does not need to send a system information request for the first system information message, so that power consumption of the terminal and the network side device may be saved, and air interface resources may be saved.

One example is as follows:

if MIB or SIB1 indicates: the required SI message X is not broadcast, and the terminal needs to transmit a system information request.

In the message 1-based system information request, the terminal identifies a requested SI message, such as SI message X, by using different random access channel (Random Access Channel, RACH) time-frequency resources or preambles corresponding to different indexes when transmitting a preamble (preamble). The corresponding relation between the SI message and the RACH time-frequency resource configuration/preamble is indicated in the MIB or the SIB1, or the protocol is agreed. For example: in the same RACH time-frequency position, the terminal sends a preamble1 identification request broadcast SI message X1; transmitting a preamble2 identification request broadcast SI message X2; or, in RACH time-frequency position 1, the terminal sends preamble1 identification request broadcast SI message X1; in RACH time-frequency position 2, the terminal sends a preamble1 identification request broadcast SI message X2.

After receiving a system information request (only indicating that the SI message X is needed) of the terminal UE, the network side device sends the SI message X requested by the terminal and the SI message Y corresponding to the SI message X. The terminal does not indicate that the request for the SI message Y is needed, and the SI message Y is inferred by the network side device according to the mapping relationship with the SI message X.

The terminal receives the required SI message X in a receiving window of one SI message X (a transmitting window corresponding to the network side device), and receives SI message Y corresponding to the SI message X in a receiving window of the SI message Y.

It can be seen that, in this embodiment, the terminal does not need to send the system information request alone to indicate that SI message Y is needed.

In the above embodiment, when the terminal indicates to the network device that the second system information message is required, it may not indicate whether or not the signature is required. For example: the terminals needing signature and not needing signature send msg1 at the same time-frequency resource position, the network side equipment does not know whether the terminals need signature or not, and the terminals need to be defaulted. After the network side equipment receives the msg1, the second system information message and the first system information message begin to be broadcast. Thus, after the second system information message and the first system information message are broadcast, all terminals in the cell may receive the second system information message. Even if the terminal requesting the system information does not support signature verification, other terminals receiving the system information may support signature verification, so that in this case, the terminal may not indicate that the signature is required, and the network side device may actively transmit the signature.

Optionally, the system information request is further used for explicitly or implicitly indicating to the network side device that signature information is needed.

The system information request may indicate that signature information is required, or may indicate that signature information is required by indicating that the terminal supports signature verification.

Since the system information request is also used for explicitly or implicitly indicating the need of signature information to the network side equipment, no additional signaling is needed for the need of signature information, thereby reducing transmission overhead.

Optionally, the system information request includes indication information, where the indication information is used to indicate that signature information is needed; or alternatively

The terminal sends the system information request based on a first resource configuration, wherein the first resource configuration is a resource configuration for sending the system information request by a terminal needing signature information in a resource configuration set, and the resource configuration set is a resource configuration set for requesting the second system information message.

The indication information may be indicated by an indication field, e.g. the system information request indicates that signature information is required or signature verification is supported by a 1-bit indication field.

The first resource configuration may be a time-frequency resource configuration or a preamble configuration, such as a RACH time-frequency resource configuration or a preamble index.

The resource allocation set may be configured by a network side device or agreed by a protocol.

Because the first resource configuration is the resource configuration for the terminal needing signature information to send the system information request in the resource configuration set, when the network side equipment determines that the terminal sends the system information request based on the first resource configuration, the terminal can be determined to need the signature information.

In this embodiment, the first resource configuration instruction for transmitting the system information request indicates that signature information is required, so that transmission overhead can be reduced.

Optionally, the above resource configuration set further includes:

and the second resource configuration is used for sending the system information request by the terminal which does not need signature information.

When the terminal sends the system information request, the terminal can select the corresponding resource configuration to send according to the need or the need of the signature information, so that the first resource configuration indication of the system information request is sent to indicate the need or the need of the signature information, and the transmission cost is saved.

One example is as follows:

the network side equipment indicates two different sets of system information request configurations (such as two sets of RACH time-frequency resource configurations/preamble indexes and the like) for one SI message X, and the two different sets of system information request configurations are respectively used by a terminal needing signature verification and a terminal not needing signature verification.

If the network side equipment receives a terminal sending request which does not need signature verification and requests to broadcast the SI message X, the network side equipment broadcasts the SI message X;

if the network side equipment receives a terminal sending request requiring signature verification and requests to broadcast the SI message X, the network side equipment broadcasts the SI message X and the SI message Y.

Optionally, the system information request is used for requesting a plurality of system information messages including the second system information message, and the indication information is used for indicating signature information of the plurality of system information messages.

In this embodiment, a plurality of system information messages may be requested to the network side device by one system information request, and the same indication information indicates signature information of the plurality of system information messages is needed, so transmission overhead may be saved.

If the SI message X required for the MIB or SIB1 terminal is not broadcast, the terminal transmits a system information request.

In the system information request based on msg3, the terminal needing signature indicates that the signature needs to be sent by carrying indication information in the system information request. For example: in the system information request, the terminal indicates that SI messages X1 and X2 are required, and at the same time, indicates that the system information request requires signature information or supports signature verification with 1 bit.

After receiving the system information request, the network side device broadcasts SI messages X1 and X2 and SI messages Y1 and Y2 carrying information of the SI messages X1 and X2.

And the terminal which does not need signature or does not support signature verification is not provided with the indication information.

It should be noted that, in the embodiment of the present application, the indication that the second system information message is needed by the system information request is not limited, and the indication that the signature information is needed, for example: in some embodiments, the second system information message and the signature information may also be indicated to the network side device by referring to other signaling, which is not limited in particular.

As an alternative embodiment, the first system information message is a system information message that does not require signature information verification.

In this embodiment, it may be achieved that the system information message carrying the signature information is a system information message that does not require signature information verification, which may transfer overhead, since there is no need to transfer the signature information of the first system information message.

In the embodiment of the application, under a first condition, a terminal receives a first system information message, wherein the first system information message carries signature information of a second system information message; wherein the first condition includes at least one of: the state of the second system information message is sending; the terminal indicates to the network equipment that signature information is needed; the terminal has indicated to the network side device that the second system information message is required. In this way, the first system information message can be transmitted between the network side equipment and the terminal under the first condition, so that the air interface resource can be saved.

In the embodiment of the application, the following may be specifically implemented:

after the terminal requests the required second system information message, receiving the second system information message and the first system information message (carrying signature information of network side equipment or a cell to the second system information message);

the network side equipment receives a system information request and requests to broadcast a second system information message; the network side equipment broadcasts a second system information message and a first system information message;

for a system information request based on msg1, the network side equipment provides two sets of system information request configuration for a second system information message application, which respectively correspond to the need/non-need signature information;

the terminal selects a proper system information request resource based on msg1 and sends a system information request;

for a system information request based on msg3, the terminal indicates that signature is needed in the system information request;

the network side equipment broadcasts or does not broadcast the first system information message according to the indication of the system information request.

In the embodiment of the application, the terminal can be prevented from independently sending a system information request application for applying for the first system information message of the cell for carrying the signature information of the second system information message; and the network side equipment can determine whether signature information of the second system information message needs to be sent or not based on the request of the terminal, so that unnecessary sending is reduced.

Referring to fig. 3, fig. 3 is a flowchart of a system information message sending method provided in an embodiment of the present application, as shown in fig. 3, including the following steps:

step 301, a network side device sends a first system information message under a first condition, wherein the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

It should be noted that the received indication may be an explicit indication or an implicit indication.

Optionally, the sending the second system information message includes:

the third system information message sent by the network side equipment indicates that the state of the second system information message is sending;

the third system information message is a master information block MIB or a system information block SIB1.

Optionally, the sending the second system information message includes:

the network side equipment broadcasts the second system information message in a first time window, wherein the first time window is a time window corresponding to the second system information message.

Optionally, in the case that the state of the second system information message in the first time window is not sent, the network side device determines that the state of the first system information message in the second time window is not sent, where the second time window is a time window corresponding to the first system information message.

That is, the network-side device ensures state synchronization of the first system information message and the second system information message.

Optionally, in the case that the second system information message is MIB or SIB1, the first system information message satisfies at least one of the following:

a system information message dedicated to carrying signature information of the MIB or SIB1;

unlike the fourth system information message, the fourth system information message is a system information message for carrying signature information of other system information, which is system information other than the MIB and SIB 1.

Optionally, the method further comprises:

the network side equipment sends a third system information message which is MIB or SIB1;

wherein, in the case that the third system information message indicates that the state of the second system information message is transmission, the third system information message implicitly indicates that the state of the first system information message is transmission; or (b)

In the case that the third system information message indicates that the state of the second system information message is not transmitted, the third system information message implicitly indicates that the state of the first system information message is not transmitted.

Optionally, the network side device receives an indication for indicating that the second system information message is needed, including:

the network side equipment receives a system information request sent by the terminal, wherein the system information request is used for requesting the second system information message, and the first system information message is sent based on the system information request;

the method further comprises the steps of:

and the network side equipment sends the second system information message to the terminal.

The system information request is sent based on a first resource configuration, wherein the first resource configuration is a resource configuration for sending the system information request by a terminal needing signature information in a resource configuration set, and the resource configuration set is a resource configuration set for requesting the second system information message.

Optionally, the resource configuration set further includes:

Optionally, the first system information message is a system information message that does not require signature information verification.

It should be noted that, as an implementation manner of the network side device corresponding to the embodiment shown in fig. 2, a specific implementation manner of the embodiment may refer to a related description of the embodiment shown in fig. 2, so that in order to avoid repeated description, the embodiment is not repeated.

Referring to fig. 4, fig. 4 is a block diagram of a system information message receiving apparatus according to an embodiment of the present application, and as shown in fig. 4, a system information message receiving apparatus 400 includes:

a first receiving module 401, configured to receive a first system information message under a first condition, where the first system information message carries signature information of a second system information message;

Wherein the first condition includes at least one of:

the state of the second system information message is sending;

The terminal corresponding to the device may include the device, or the device may be the terminal.

In some embodiments, the apparatus further comprises a verification module configured to verify the second system information message using signature information of the second system information message.

Optionally, the sending the second system information message includes:

Optionally, the apparatus further includes:

the second receiving module is configured to receive a third system information message, where the third system information message is MIB or SIB1, and in a case where the third system information message implicitly indicates a state of the first system information message:

Optionally, the indicating that the second system information message is needed to the network side device includes:

the terminal sends a system information request to the network side equipment, wherein the system information request is used for requesting the second system information message;

the apparatus further comprises:

and a third receiving module, configured to receive the second system information message sent by the network side device.

Optionally, the resource configuration set further includes:

The system information message receiving device can save air interface resources.

The system information message receiving device in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the terminals may include, but are not limited to, the types of terminals listed in embodiments of the present application, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the present application are not specifically limited.

The system information message receiving device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Referring to fig. 5, fig. 5 is a block diagram of a system information message sending apparatus according to an embodiment of the present application, and as shown in fig. 5, a system information message sending apparatus 500 includes:

a first sending module 501, configured to send, under a first condition, a first system information message, where the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

The network-side device corresponding to the apparatus may include the apparatus, or the apparatus may be the network-side device.

Optionally, the sending the second system information message includes:

Optionally, the apparatus further includes:

the second sending module is used for sending a third system information message, wherein the third system information message is MIB or SIB1;

the apparatus further comprises:

and the third sending module is used for sending the second system information message to the terminal.

Optionally, the resource configuration set further includes:

Optionally, the system information request is used for requesting a plurality of system information messages including the second system information message, and the indication information is used for indicating that the terminal needs signature information of the plurality of system information messages.

The system information message receiving device in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a network device.

The system information message receiving device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, where the memory 602 stores a program or instructions that can be executed on the processor 601, for example, when the communication device 600 is a terminal, the program or instructions implement the steps of the system information message receiving method embodiment when executed by the processor 601, and achieve the same technical effects. When the communication device 600 is a network side device, the program or the instruction, when executed by the processor 601, implements the steps of the system information message sending method embodiment described above, and the same technical effects can be achieved.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving a first system information message under a first condition, and the first system information message carries signature information of a second system information message; wherein the first condition includes at least one of: the state of the second system information message is sending; the terminal indicates to the network equipment that signature information is needed; the terminal has indicated to the network side device that the second system information message is required. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides a terminal. The terminal 700 includes, but is not limited to: at least some of the components of the radio frequency unit 701, the network module 702, the audio output unit 703, the input unit 704, the sensor 705, the display unit 706, the user input unit 707, the interface unit 708, the memory 709, and the processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processing unit 7041 processes image data of still pictures or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network device, the radio frequency unit 701 may transmit the downlink data to the processor 710 for processing; in addition, the radio frequency unit 701 may send uplink data to the network device. Typically, the radio unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 709 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

Specifically, the terminal 700 of the embodiment of the present application further includes: instructions or programs stored in the memory 709 and executable on the processor 710, the processor 710 invokes the instructions or programs in the memory 709 to perform the methods performed by the modules shown in fig. 4 and achieve the same technical effects, and are not repeated here.

The radio frequency unit 701 is configured to receive a first system information message under a first condition, where the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

Optionally, the sending the second system information message includes:

unlike the fourth system information message, the fourth system information message is a system information message for carrying signature information of other system information, which is system information other than the MIB and SIB1.

Optionally, the radio frequency unit 701 is further configured to:

receiving a third system information message, wherein the third system information message is MIB or SIB1, and in the case that the third system information message implicitly indicates the state of the first system information message:

the radio frequency unit 701 is further configured to:

and receiving the second system information message sent by the network side equipment.

Optionally, the resource configuration set further includes:

The terminal can save air interface resources.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending a first system information message under a first condition, and the first system information message carries signature information of a second system information message; wherein the first condition includes at least one of: the state of the second system information message is sending; the network side equipment corresponding to the device receives an indication for indicating that signature information is needed; the network side equipment receives an indication for indicating that the second system information message is needed. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 800 includes: an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804, and a memory 805. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information via the antenna 801, and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted, and transmits the processed information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 801.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 803, where the baseband apparatus 803 includes a baseband processor.

The baseband device 803 may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 805 through a bus interface, so as to invoke a program in the memory 805 to perform the network device operation shown in the above method embodiment.

The network side device may also include a network interface 806, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 800 of the embodiment of the present application further includes: instructions or programs stored in the memory 805 and executable on the processor 804, the processor 804 invokes the instructions or programs in the memory 805 to perform the methods performed by the modules shown in fig. 5 and achieve the same technical effects, and are not described herein in detail to avoid repetition.

The radio frequency device 802 is configured to send a first system information message under a first condition, where the first system information message carries signature information of a second system information message;

wherein the first condition includes at least one of:

the state of the second system information message is sending;

Optionally, the sending the second system information message includes:

Optionally, the radio frequency device 802 is further configured to:

transmitting a third system information message, wherein the third system information message is MIB or SIB1;

the radio frequency device 802 is also configured to:

and sending the second system information message to the terminal.

Optionally, the resource configuration set further includes:

The network side equipment can save air interface resources.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, where the program or the instruction implements the steps of the system information message receiving method provided in the embodiment of the application when being executed by a processor, or the program or the instruction implements the steps of the system information cancellation transmission method provided in the embodiment of the application when being executed by a processor.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, implement each process of the embodiment of the system information message receiving method or the system information cancellation sending method, and achieve the same technical effect, so that repetition is avoided, and no redundant description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above embodiment of the system information message receiving method or the system information cancellation sending method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application provides a system information cancellation transmission system, which comprises: the terminal can be used for executing the steps of the system information message receiving method provided by the embodiment of the application, and the network side device can be used for executing the steps of the system information cancellation transmitting method provided by the embodiment of the application.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A system information message receiving method, comprising:

wherein the first condition includes at least one of:

the state of the second system information message is sending;

2. The method of claim 1, wherein the status of the second system information message is sent, comprising:

3. The method of claim 1, wherein the status of the second system information message is sent, comprising:

4. The method of claim 3, wherein the terminal does not receive the first system information message in a second time window, where the state of the second system information message in the first time window is not transmitted, and the second time window is a time window corresponding to the first system information message.

5. The method of claim 1, wherein the first system information message satisfies at least one of the following in the case that the second system information message is MIB or SIB 1:

6. The method of claim 1, wherein the method further comprises:

7. The method according to any one of claims 1 to 6, wherein the indicating to the network side device that the second system information message is required comprises:

the method further comprises the steps of:

8. The method of claim 7, wherein the system information request is further for explicitly or implicitly indicating to the network side device that signature information is required.

9. The method of claim 8, wherein the system information request includes indication information indicating that signature information is required; or alternatively

10. The method of claim 9, wherein the set of resource configurations further comprises:

11. The method of claim 9, wherein the system information request is for requesting a plurality of system information messages including the second system information message, and the indication information is for indicating signature information requiring the plurality of system information messages.

12. The method according to any of claims 1 to 6, wherein the first system information message is a system information message requiring no signature information verification.

13. A system information message transmission method, comprising:

wherein the first condition includes at least one of:

the state of the second system information message is sending;

14. The method of claim 13, wherein the status of the second system information message is a transmission, comprising:

15. The method of claim 13, wherein the status of the second system information message is a transmission, comprising:

16. The method of claim 15, wherein the network side device determines that the state of the first system information message is not transmitted in a second time window, the second time window being a time window corresponding to the first system information message, in the case that the state of the second system information message is not transmitted in the first time window.

17. The method of claim 13, wherein the first system information message satisfies at least one of the following in the case that the second system information message is MIB or SIB 1:

18. The method of claim 13, wherein the method further comprises:

19. The method according to any one of claims 13 to 18, wherein the network side device receives an indication for indicating that the second system information message is required, comprising:

the network side equipment receives a system information request sent by a terminal, wherein the system information request is used for requesting the second system information message, and the first system information message is sent based on the system information request;

the method further comprises the steps of:

20. The method of claim 19, wherein the system information request is further for explicitly or implicitly indicating to the network side device that signature information is required.

21. The method of claim 20, wherein the system information request includes indication information indicating that signature information is required; or alternatively

22. The method of claim 21, wherein the set of resource configurations further comprises:

23. The method of claim 21, wherein the system information request is for requesting a plurality of system information messages including the second system information message, and the indication information is for indicating signature information requiring the plurality of system information messages.

24. The method according to any of claims 13 to 18, wherein the first system information message is a system information message requiring no signature information verification.

25. A system information message receiving apparatus, comprising:

wherein the first condition includes at least one of:

the state of the second system information message is sending;

26. A system information message transmission apparatus, comprising:

wherein the first condition includes at least one of:

the state of the second system information message is sending;

27. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the system information message receiving method of any one of claims 1 to 12.

28. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the system information messaging method of any of claims 13 to 24.

29. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the system information message receiving method according to any one of claims 1 to 12, or which when executed by a processor, implements the steps of the system information message transmitting method according to any one of claims 13 to 24.