CN114365547B

CN114365547B - System information transmission method and communication device

Info

Publication number: CN114365547B
Application number: CN201980100313.5A
Authority: CN
Inventors: 郑娟; 李超君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2024-01-30
Anticipated expiration: 2039-09-30
Also published as: CN114365547A; WO2021062802A1

Abstract

The embodiment of the application provides a transmission method of system information. The terminal device detects a physical downlink control channel PDCCH. Here, the PDCCH carries indication information for indicating whether or not the first system information from the network device is updated. And if the terminal equipment determines that the indication information indicates that the first system information is updated, receiving the updated first system information. By adopting the method provided by the application, the power consumption generated by the terminal equipment for acquiring the system information can be reduced, and the acquisition efficiency and the user experience of the system information of the terminal equipment can be improved.

Description

System information transmission method and communication device

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, to a method and a communication device for transmitting system information.

Background

With the continuous development of mobile communication technology, the Fifth Generation (5G) mobile communication technology (also called New Radio (NR)) has been proposed. In practical applications, services of the 5G technology are very diverse, such as enhanced mobile broadband (enhanced mobile broadband, eMBB) oriented services, ultra-reliable low-latency communication (URLLC) services, and large-scale machine-type communication (mctc) services. The large-scale machine communication technology is particularly suitable for the fields of video monitoring, supply chain tracking, electronic payment and the like, and has high practical value. For the large-scale machine communication technology, the terminal equipment is usually required to support lower power consumption due to the application field and scene specificity, so that the use cost of a user can be reduced, and the user experience of the terminal equipment is improved. Therefore, in the course of research on the large-scale machine communication technology, how to reduce the power consumption of the terminal device has become a big research hotspot.

In the prior art, on one hand, network devices periodically send (mainly by broadcasting) system information. In addition, in order to more match the running state of the current network system, the network device also periodically updates the system information sent by the network device. On the other hand, for a terminal device that has completed initial access to a network device, in some cases, it needs to reacquire system information sent by the network device, and further implement data transmission with the network device according to the reacquired system information. For example, when the terminal device detects poor downlink quality, it may perform a resynchronization operation. In the process of resynchronization, the terminal device needs to reacquire the system information sent by the network device. However, when the system information sent by the network device is not updated, the system information acquired by the terminal device during the resynchronization process and the system information acquired before the resynchronization are the same, that is, the terminal device repeatedly acquires the same system information, which inevitably generates some unnecessary power consumption, and reduces the data transmission efficiency between the terminal device and the network device, and reduces the user experience of the terminal device. Therefore, how to reduce the power consumption of the terminal device in the process of system information acquisition becomes one of the problems to be solved.

Disclosure of Invention

The application provides a transmission method and a communication device of system information. By adopting the method provided by the application, the power consumption generated by the terminal equipment for acquiring the system information can be reduced, and the acquisition efficiency and the user experience of the system information of the terminal equipment can be improved.

In a first aspect, an embodiment of the present application provides a method for transmitting system information. The terminal device detects a physical downlink control channel PDCCH. Here, the PDCCH carries indication information for indicating whether or not the first system information from the network device is updated. And if the terminal equipment determines that the indication information indicates that the first system information is updated, receiving the updated first system information.

In the embodiment of the application, the terminal device can determine whether the system information is updated based on the indication information issued by the network device, so that only the updated system information is received. Therefore, repeated acquisition of the same system information can be avoided, power consumption generated by acquiring the system information by the terminal equipment is reduced, and the acquisition efficiency and the user experience of the system information of the terminal equipment are improved.

With reference to the first aspect, in a possible implementation manner, the first system information includes a SIB1 as a system information block type and a first system information block set other than SIB1, where the first system information block set includes at least one first system information block.

With reference to the first aspect, in a possible implementation manner, the indication identifier included in the indication information is a reserved bit in DCI for scheduling downlink control information of SIB1 or a reserved bit in DCI for scheduling paging information, where the DCI is carried in the PDCCH.

With reference to the first aspect, in a possible implementation manner, if the terminal device determines that the indication information indicates that the SIB1 is updated, the updated SIB1 is received at a first time. And/or if the terminal equipment determines that the indication information indicates that the first system information block set is updated, receiving the updated first system information block set at the second moment. Whether the SIB1 and the first system information block set contained in the first system information are updated or not is determined through a first indication identifier and a second indication identifier, so that the condition that the terminal equipment repeatedly acquires the SIB1 or the first system information block set under the condition that the SIB1 or the first system information block set is not updated can be avoided, and the power consumption of the terminal equipment can be reduced.

With reference to the first aspect, in a possible implementation manner, if the terminal device determines that the indication information indicates that the SIB1 is updated, the updated SIB1 is received at a first time. And/or if the terminal equipment determines that the indication information indicates that at least one first system information block in the first system information block set is updated, receiving the updated at least one first system information block at the second moment. The terminal equipment can determine whether the updated system information block occurs or not more accurately by determining whether the SIB1 and each first system information block contained in the first system information block are updated or not more finely through a plurality of indication marks contained in the indication information, so that repeated reading of the system information block can be avoided more effectively, and the power consumption of the terminal equipment can be further reduced.

With reference to the first aspect, in a possible implementation manner, the terminal device determines the at least one first system information block indicated by the indication information according to the obtained indication rule, where the indication rule corresponds to the terminal device. Different interpretation is carried out on the same indication information based on different indication rules, so that the terminal equipment can acquire more indication results through limited indication information, and the expenditure of the indication information can be reduced.

With reference to the first aspect, in a possible implementation manner, the terminal device may further obtain access indication information, and determine whether the network device allows access according to the access indication information. Whether the network equipment is allowed to be accessed is determined according to the access indication information, so that invalid search operation caused by the fact that the network equipment is not allowed to be accessed can be avoided, and the power consumption of the terminal equipment can be saved.

With reference to the first aspect, in a possible implementation manner, the terminal device may further obtain the access indication information through a demodulation reference signal DMRS, a reserved bit in time information carried by the synchronization signal block SSB, or a reserved bit of the master system information block MIB.

In a second aspect, an embodiment of the present application provides a method for transmitting system information. The network device determines the indication information. Here, the above-described indication information is used to indicate whether or not the first system information is updated. The network equipment sends the indication information through the PDCCH.

In the embodiment of the application, the network equipment determines the indication information according to whether the system information is updated or not and sends the indication information to the terminal equipment, so that the terminal equipment can only receive the updated system information according to the indication information, repeated acquisition of the same system information can be avoided, power consumption generated when the terminal equipment acquires the system information is reduced, and the acquisition efficiency and user experience of the system information of the terminal equipment are improved.

With reference to the second aspect, in a possible implementation manner, the network device may further send updated first system information.

With reference to the second aspect, in a possible implementation manner, the first system information includes a system information block type 1SIB1 and a first system information block set other than SIB1, where the first system information block set includes at least one first system information block.

With reference to the second aspect, in a possible implementation manner, the indication information is a bit state of a reserved bit in DCI for scheduling the SIB1 or a reserved bit in DCI for scheduling paging information, and the DCI is carried in the PDCCH.

With reference to the second aspect, in a possible implementation manner, the network device may send an indication rule corresponding to the terminal device, where the indication rule is used to determine the at least one first system information block indicated by the indication information corresponding to the indication rule. The network device uses the same indication identifier to indicate whether the different first system information blocks are updated, so that communication resources can be saved.

With reference to the second aspect, in a possible implementation manner, the network device may determine access indication information, where the access indication information is used to indicate whether the terminal device is allowed to access the network device. The network device may also send the above access indication information.

With reference to the second aspect, in a possible implementation manner, the network device may send the access indication information through a demodulation reference signal DMRS, a reserved bit in time information carried by the synchronization signal block SSB, or a reserved bit of the MIB.

In a third aspect, embodiments of the present application provide a communication device. The communication device may be the terminal device itself, or may be an element or module such as a chip inside the terminal device. The communication device comprises means for performing the system information transmission method provided by any one of the possible implementation manners of the first aspect, and thus can also be a beneficial effect (or advantage) provided by implementing the system information transmission method provided by the first aspect.

In a fourth aspect, embodiments of the present application provide a communication device. The communication device may be the network device itself, or may be an element or module such as a chip inside the network device. The communication device comprises means for performing the method of transmitting system information provided by any one of the possible implementations of the second aspect described above, and can therefore also be advantageous (or advantageous) for implementing the method of transmitting system information provided by the second aspect.

In a fifth aspect, embodiments of the present application provide a communication apparatus, which may be a terminal device. The communication device includes at least one memory and a processor. Wherein the processor is configured to invoke the code stored in the memory to execute the method for transmitting system information provided by any one of the possible implementations of the first aspect.

In a sixth aspect, embodiments of the present application provide a communication apparatus, which may be a network device. The communication device includes at least one memory and a processor. Wherein the processor is configured to invoke the code stored in the memory to perform a method for transmitting system information provided by any one of the possible implementations of the second aspect.

In a seventh aspect, embodiments of the present application provide a communication apparatus, which may be a terminal device. The communication device includes: at least one processor and interface circuitry. The interface circuit is used for receiving code instructions and transmitting the code instructions to the processor. The processor is configured to execute the code instruction to implement a method for transmitting system information provided by any one of the possible implementation manners of the first aspect, and may also implement the beneficial effects (or advantages) provided by the method for transmitting system information provided by the first aspect.

In an eighth aspect, embodiments of the present application provide a communication apparatus, which may be a network device. The communication device includes: at least one processor and interface circuitry. The interface circuit is used for receiving code instructions and transmitting the code instructions to the processor. The processor is configured to execute the code instruction to implement a method for transmitting system information provided by any one of the possible implementation manners of the second aspect, and may also implement the beneficial effects (or advantages) provided by the method for transmitting system information provided by the second aspect.

In a ninth aspect, an embodiment of the present application provides a computer readable storage medium, where an instruction is stored, where the instruction, when executed on a computer, implements a method for transmitting system information provided by any one of the feasible implementation manners of the first aspect, and may also implement the beneficial effects (or advantages) provided by the method for transmitting system information provided by the first aspect.

In a tenth aspect, an embodiment of the present application provides a computer readable storage medium, where instructions are stored, where when the instructions are executed on a computer, to implement a method for transmitting system information provided by any one of the feasible implementation manners of the second aspect, and also implement the beneficial effects (or advantages) provided by the method for transmitting system information provided by the second aspect.

In an eleventh aspect, an embodiment of the present application provides a computer program product including instructions, where the computer program product when executed on a computer causes the computer to execute the system information transmission method provided in the first aspect, and also achieves the beneficial effects of the system information transmission method provided in the first aspect.

In a twelfth aspect, embodiments of the present application provide a computer program product containing instructions, which when executed on a computer, cause the computer to perform the system information transmission method provided in the second aspect, and also achieve the beneficial effects of the system information transmission method provided in the second aspect.

In a thirteenth aspect, embodiments of the present application provide a communication system, which includes the communication apparatus described in the third aspect and the fourth aspect, or the communication apparatus described in the fifth aspect and the sixth aspect, or the communication apparatus described in the seventh aspect and the eighth aspect.

By adopting the method provided by the embodiment of the application, the power consumption generated by the terminal equipment for acquiring the system information can be reduced, and the acquisition efficiency and the user experience of the system information of the terminal equipment can be improved.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flow chart of a method for transmitting system information according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

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

Detailed Description

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

The technical solution of the embodiment of the application can be applied to various communication systems, for example: such as MTC systems, code division multiple access (code division multiple access, CDMA) systems, wideband code division multiple access (wideband code division multiple access, WCDMA) systems, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication systems (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems or New Radio (NR), etc.

The terminal device in the embodiments of the present application may refer to a user device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved public land mobile network (public land mobile Network, PLMN), etc., as the embodiments of the application are not limited in this regard.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system of mobile communication, GSM) or code division multiple access (code division multiple access, CDMA), may also be a base station (NodeB, NB) in a wideband code division multiple access (wideband code division multiple Access, WCDMA) system, may also be an evolved base station (evolutional nodeB, eNB or eNodeB) in an LTE system, may also be a wireless controller in a cloud wireless access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle device, a wearable device, a network device in a 5G network, or a network device in a future evolved PLMN network, etc., which is not limited in this application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application. As can be seen from fig. 1, the communication system comprises a network device and a terminal device. The network device may establish a connection with the terminal device via a wired connection, a wireless connection, or other connection. It will be understood, of course, that the communication system may include one or more network devices and one or more terminal devices (e.g., terminal device 1 through terminal device 6 in fig. 1). In a communication system as shown in fig. 1, a network device periodically broadcasts system information to various terminal devices. In the embodiment of the present application, the system information broadcast by the network device may be understood as higher-layer information sent by the network device through broadcasting. For example, the system information may include the following information: a master information block (master information block, MIB) and a system information block (system information block, SIB). Further, the system information blocks may be further classified into a system information block type one (system information block type, SIB 1), a system information block type two (system information block type, SIB 2), a system information block type three (system information block type, SIB 3), etc., according to the specific information contained. In order to more match the running state of the current network system, the network device also periodically updates the system information sent by the network device. For a certain terminal device, in some cases, it needs to re-acquire the system information sent by the network device, and further implement data transmission with the network device according to the re-acquired system information. However, when the system information sent by the network device is not updated, the terminal device still repeatedly acquires the same system information, which inevitably generates unnecessary power consumption, reduces the data transmission efficiency between the terminal device and the network device, and reduces the user experience of the terminal device.

Therefore, the technical problems mainly solved by the embodiment of the application are as follows: in the transmission process of the system information, how to reduce the power consumption of the terminal equipment so as to improve the applicability and the user experience of the terminal equipment.

Example 1

Referring to fig. 2, fig. 2 is a flowchart of a method for transmitting system information according to an embodiment of the present application. The transmission method is applicable to the communication system shown in fig. 1. The transmission method is suitable for the scene that the terminal equipment and the network equipment have completed the initialization access. As can be seen from fig. 2, the method comprises the steps of:

s10, the network equipment determines indication information.

In some possible embodiments, the network device may determine the indication information corresponding to the first system information according to the update condition of the first system information sent by the network device. Here, the indication information indicates whether or not the first system information is updated. The first system information may include SIB1 and a first set of system information blocks other than SIB 1. The first set of system information blocks includes at least one first system information block. For example, the first system information block set may include a plurality of first system information blocks such as SIB2 and SIB 3. It should be explained here that the above-mentioned first system information may be understood as a subset of the system information described above, and the first system information may not include the MIB mentioned above, so that the overhead of the indication information may be reduced, and the reliability of transmission of the indication information may be ensured. Particularly for machine type terminal devices, the crystal oscillator cost is generally low based on the consideration of cost, so that the machine type terminal device needs to track the time information of the network device in real time, and the time information is generally contained in the MIB, so that the machine type terminal device needs to read the MIB information in real time. Based on this, the indication information in the embodiment of the present application may not indicate whether the MIB is updated, so that the indication information overhead may be saved, and the transmission performance of the indication information is ensured.

In the present application SIB1 may be understood as the necessary system information needed for data transmission between a terminal device and a network device. For example, SIB1 may include configuration information of a random access channel (random access channel, RACH) or scheduling information corresponding to other system information SI (i.e., the first set of system information blocks described above), which may be understood as other system information blocks besides SIB1. The names of SIB1 may be different in different systems. In the embodiment of the application, after detecting the physical broadcast channel (physical broadcast channel, PBCH) sent by the network device, the first system information to be detected and sent by the network device is called SIB1 in order to continue data transmission with the network device. Other system information blocks than SIB1 may be understood as other system information broadcast by the network device.

It should also be noted that, in the embodiment of the present application, predefined may be understood as being defined by a protocol. Signaling configured or preconfigured may be understood as being configured by higher layer or physical layer signaling. Higher layer signaling may include, for example, radio resource control (radio resource control, RRC) signaling, medium access control (medium access control, MAC) Control Element (CE), radio link control (radio link control, RLC) signaling, and the like. The physical layer signaling may include, for example, downlink control information (downlink control information, DCI), signaling transmitted through a downlink physical layer channel, etc., and the physical downlink channel may be, for example, a physical downlink control channel (physical downlink control channel, PDCCH) or a physical downlink shared channel (physical downlink shared channel, PDSCH), etc. The embodiments of the present application do not limit the types and names of the physical downlink control channels, which are all commonly referred to as PDCCHs, and the physical downlink control channels are channels for carrying downlink control information, for example, may be NR-PDCCHs and other channels with new definition in future communication protocols and functions similar to those of the physical downlink control channels.

In a specific implementation, according to the difference of the objects indicated by the indication information, the embodiments of the present application provide a plurality of implementation manners for determining the indication information by using the network device, and the plurality of implementation manners will be specifically described below respectively.

The implementation mode is as follows:

in this implementation, the indication information is mainly used to indicate whether the first system information is updated or not. That is, the network device may determine that the first system information is updated as long as SIB1 or any one of the first system information blocks is updated. Here, the indication information includes a first indication identifier.

In an alternative implementation, the network device may determine, according to its system configuration information or system log information, etc., whether the SIB1 and at least one first system information block included in the above-mentioned first system information are updated. The first indication flag may be set to a first state if the network device determines that SIB1 or any one of the at least one first system information block has been updated. Here, it can be appreciated that the first state of the first indication identifier is used to indicate that an update has occurred to the first system information block, and the second state of the first indication identifier is used to indicate that no update has occurred to the first system information block. The first state and the second state are only used for indicating the first indication marks with different values or different implementation forms, and have no other limiting effect, and the description is omitted. For example, assume that the first indication is identified as one indication bit. If the network device determines that the SIB1 or any one of the at least one first system information block is updated, the indication bit may be set to 1. If the network device determines that none of the SIB1 and the at least one first system information block is updated, the indication bit may be set to 0.

In another alternative implementation, the network device may also determine, according to its system configuration information or system log information, whether the SIB1 and at least one first system information block included in the above first system information are updated. If the network device determines that the SIB1 or any one of the at least one first system information block is updated, the first indication identifier may be modified from the original first state to the second state. Here, it may be understood that the first state is a state of the first indication identifier determined after the network device determines whether the first system information is updated according to the system configuration information or the system log information of the network device. In short, the present implementation indicates whether the first system information is updated by whether the state of the first indication flag is changed. For example, assume that the first indication is identified as one indication bit. If the network device determines that SIB1 or any one of the at least one first system information block has been updated, the value of the indication bit may be modified from 0 to 1. When the SIB1 or any one of the at least one first system information block is updated again, then the network device may modify the value of the indication bit from 1 to 0 again. If the network device determines that either SIB1 or any of the first system information blocks in the first set of system information blocks has not been updated, the network device may not modify the value of the indication bit.

The first indication identifier is used for uniformly indicating whether the first system information is updated or not, so that the situation that the terminal equipment repeatedly acquires the first system information under the condition that the first system information is not updated can be avoided, and the power consumption of the terminal equipment can be reduced.

The implementation mode II is as follows:

in this implementation, the indication information is mainly used to indicate whether the SIB1 and/or the first system information block set included in the first system information is updated. That is, the network device may determine that SIB1 and/or the first set of system information blocks are updated as long as SIB1 and/or any one of the first system information blocks are updated. Here, the indication information includes a first indication identifier and a second indication identifier, where the first indication identifier and the second indication identifier are respectively used to indicate whether SIB1 and the first system information block set are updated, for example, the first indication identifier is used to indicate whether SIB1 is updated, and the second indication identifier is used to indicate whether the first system information block set is updated; alternatively, the first indication identifier is used for indicating whether the first set of system information blocks is updated, and the second indication identifier is used for indicating whether the SIB1 is updated. In the following, a simple description will be given of a procedure for determining the indication information by the network device, taking as an example a scenario in which the indication information is used to indicate whether or not an update of SIB1 and the first system information block set occurs.

In an alternative implementation, the network device may determine whether the SIB1 and at least one first system information block included in the first system information are updated according to its system configuration information or system log information, etc. Taking the example that the first indication identifier and the second indication identifier respectively indicate whether the SIB1 and the first system information block set are updated, if the network equipment determines that the SIB1 is updated, the first indication identifier can be set to be in a first state. Alternatively, the second indication identifier may be set to the first state if the network device determines that any one of the at least one first system information block is updated. If the terminal device determines that neither the SIB1 nor any one of the at least one first system information block is updated, the first indication identifier and the second indication identifier may be set to the second state. For example, assume that the first indication is identified as indication bit a and the first indication is identified as indication bit B. If the network device determines that SIB1 is updated and none of the first system information blocks is updated, the first indication bit a may be set to 1 and the second indication bit B may be set to 0.

In another alternative implementation, the network device may also determine, according to its system configuration information or system log information, whether the SIB1 and at least one first system information block included in the above first system information are updated. If the network device determines that the SIB1 is updated, the first indication identifier may be modified from the original first state to the second state. If the network device determines that any one of the at least one first system information block is updated, the second indication identifier may be modified from the original first state to the second state. Here, it may be understood that, in this implementation, the first state is a state of the first indication identifier and the second indication identifier determined after the network device determines whether the SIB1 and the first system information block set are updated according to the system configuration information or the system log information of the network device last time. In short, whether the SIB1 or the first system information block is updated is indicated by whether the states of the first indication identifier and the second indication identifier are changed. For example, assume that a first indication is identified as a first indication bit a and a second indication is identified as a second indication bit B. If the network device determines that SIB1 is updated, the value of the first indication bit a may be modified from 0 to 1. If the network device determines that any one of the first system information blocks has been updated, the value of the second indicator bit B may be modified from 0 to 1. If the network device determines that SIB1 is not updated, the network device does not modify the value of the first indication bit A. If the network device determines that none of the at least one first system information block is updated, the network device does not modify the value of the second indication bit B.

Whether the SIB1 and the first system information block set contained in the first system information are updated or not is indicated by more refined first indication identification and second indication identification, so that the condition that the terminal equipment repeatedly acquires the SIB1 or the first system information block set under the condition that the SIB1 or the first system information block set is not updated can be avoided, and the power consumption of the terminal equipment can be reduced.

And the implementation mode is three:

in this implementation, the indication information is mainly used to indicate whether SIB1 is updated, and whether at least one first system information block in the first system information block set is updated. In other words, the indication information can indicate whether SIB1 is updated, and specifically indicates which one or more first system information blocks in the first information block set are updated.

Next, it is assumed that the first system information block set includes three first system information blocks, SIB2, SIB3, and system information block 4 (system information block type, SIB 4). The indication information is assumed to include a first indication identifier and a second indication identifier.

In an alternative implementation, the first indication identifier may be used to indicate whether SIB1 is updated, and the second indication identifier may be used to indicate whether any one or more of three first system information blocks, SIB2, SIB3, and SIB4, are updated. In a specific implementation, the network device may determine whether the update occurs in the SIB1, SIB2, SIB3 and SIB4 according to its system configuration information or system log information, respectively. If the network device determines that the SIB1 is updated, the first indication identifier may be set to a first state. If the network device determines that any one or more of SIB2, SIB3, or SIB4 is updated, the second indication flag may be set to the first state. If the terminal device determines that no update occurs in SIB1, SIB2, SIB3 and SIB4, both the first indicator and the second indicator may be set to the second state.

In another alternative implementation, the indication information includes a first indication identifier, a second indication identifier, a third indication identifier, and a fourth indication identifier. The first indication flag may be used to indicate whether SIB1 is updated, and the second indication flag, the third indication flag, and the fourth indication flag may be used to indicate whether SIB2, SIB3, and SIB4 are updated, respectively. In a specific implementation, if the network device determines that the SIB1 is updated according to system configuration information or system log information, the first indication identifier may be set to a first state. If the network device determines that any one or more of SIB2, SIB3 or SIB4 is updated according to the system configuration information or the system log information, etc., the second indication identifier, the third indication identifier or the fourth indication identifier corresponding to the SIB2, SIB3 or SIB4 where the update is performed may be set to the first state. If the terminal device determines that SIB1, SIB2, SIB3 and SIB4 are updated, the first indication identifier, the second indication identifier, the third indication identifier and the fourth indication identifier may be set to the second state.

In yet another implementation, the network device may indicate that a certain system information block is updated by a change in the state of the indication identifier included in the indication information. In combination with the content of the first two implementations in the present implementation manner, if the network device determines that the SIB1 is updated if the indication information includes the first indication identifier and the second indication identifier, the first indication identifier may be modified from the original first state to the second state. If the network device determines that any one or more of SIB2, SIB3, or SIB4 is updated, the second indication identifier may be modified from the original first state to a second state. If the terminal equipment determines that the SIB1, the SIB2, the SIB3 and the SIB4 are not updated, the states of the first indication identifier and the second indication identifier are kept unchanged. When the indication information includes the first indication identifier, the second indication identifier, the third indication identifier and the fourth indication identifier, if the network device determines that the SIB1 is updated according to the system configuration information or the system log information, the network device may modify the first indication identifier from the original first state to the second state. If the network device determines that any one or more of SIB2, SIB3 or SIB4 is updated according to the system configuration information or the system log information, the second indication identifier, the third indication identifier or the fourth indication identifier corresponding to the SIB2, SIB3 or SIB4 that is updated may be modified from the original first state to the second state. If the terminal equipment determines that the SIB1, the SIB2, the SIB3 and the SIB4 are not updated, the states of the first indication mark, the second indication mark, the third indication mark and the fourth indication mark are maintained.

In this embodiment of the present application, the first states corresponding to the different first system information blocks may be different or the same, and the second states corresponding to the different first system information blocks may be different or the same. This is because the frequency of the different first system information block updates may be different. Thus, at the same time, the first state and/or the second state corresponding to different first system information blocks may be different. In addition, in the embodiment of the present application, the first states corresponding to different indication marks may be the same or different, and are not particularly limited.

In the method, whether the indication SIB1 with more refined indication marks contained in the indication information and each first system information block contained in the first system information block are changed or not can enable the terminal equipment to more accurately determine the updated system information block, so that the terminal equipment can more effectively avoid repeated reading of the system information block, and the power consumption of the terminal equipment can be further reduced.

The implementation mode is four:

in an alternative implementation manner, since the SIB1 includes scheduling information corresponding to the first set of system information blocks, the scheduling information is used for the terminal device and the network device to transmit the first system information blocks included in the first set of system information blocks. The scheduling information may include at least one of: time information for transmitting the first system information block, frequency resources for transmitting the first system information block, coding information, modulation information, and the like. Wherein the time information for transmitting the first system information block may be expressed as when the network device transmits the first system information block. The frequency resources over which the first system information block is transmitted may be denoted as frequency bands on which the network device transmits the first system information block. Therefore, the indication information may further include an identifier for indicating whether the scheduling information of the first system information set included in SIB1 is updated (for convenience of distinction, the fifth indication identifier will be replaced with the description below). The process of determining the indication information by the network device described in connection with the first implementation manner, the second implementation manner and the third implementation manner may be known, and the network device may further determine whether the scheduling information is updated according to the system configuration information or the system log information, and indicate whether the scheduling information is updated according to the state of the fifth identifier. The specific process may be referred to in the foregoing, and will not be described herein.

For example, the network device may indicate that SIB1 is not updated, the first set of system information blocks is updated, and at the same time indicate that the scheduling information of the first set of system information blocks is updated by using the fifth indication identifier, through the first indication identifier and the second indication identifier, respectively. In this case, the terminal device may not re-acquire SIB1, but rather acquire the first system information blocks included in the first set of system information blocks according to the new scheduling information, which may be predefined (e.g., standard protocol specification) or preconfigured (e.g., indicated by higher layer signaling, physical layer signaling). Or, the network device updates the scheduling information according to reasons such as system configuration, for example, the network device may avoid collision between the system message and other data transmission messages, and update the scheduling information of the first system information block, but at this time, SIB1 and the first system information block included in the first system information block set are unchanged, and in this case, by using this implementation manner, it may be avoided that the terminal device repeatedly interprets SIB1 and the first system information block included in the first system information block set, so as to reduce power consumption of the terminal device.

On the basis of indicating whether the SIB1 and the first system information block set are updated or not, the scheduling information of the first system information block set is indicated to be updated or not by combining the fifth indication mark, so that the terminal equipment is prevented from repeatedly acquiring the SIB1 or the first system information block set and simultaneously from repeatedly extracting the scheduling information from the SIB1, the power consumption of the terminal equipment can be further reduced, and the efficiency of acquiring the first system information by the terminal equipment is improved.

The implementation mode is five:

in practical applications, the first set of system information blocks may include a plurality of first system information blocks, and the first system information blocks that need to be interpreted may be different for different types of terminal devices. For example, for a first type of terminal device it may only be required to interpret SIB2 and SIB3, the other first system information blocks may not be interpreted, while for a second type of terminal device it may only be required to interpret SIB4 and (system information block type, SIB 5), the other first system information blocks may not be interpreted. It should be noted here that, in the embodiment of the present application, the types of the terminal devices may be divided in various manners. For example, it may be divided according to terminal device functions. Or, according to the device capabilities of the terminal device. Or dividing according to the service types supported by the terminal equipment. Or, according to the bandwidth capabilities of the terminal device. Of course, it is understood that the type of terminal device may be divided in other ways, and the present application is not specifically limited. For example, in the case of division according to the service types supported by the terminal device, the terminal device supporting the eMBB service, the terminal device supporting the URLLC service, and the terminal device supporting the mMTC service may be regarded as different types of terminal devices. For another example, in the case of dividing according to the bandwidth capabilities of the terminal devices, different types of terminal devices may be distinguished according to the maximum channel bandwidths supported by the terminal devices. Here, the maximum channel bandwidth supported by the terminal device is the bandwidth capability of the terminal device, that is, the maximum frequency resource that can be used when the terminal device performs data transmission. Here, the maximum frequency resource that the terminal device can use is continuous in the frequency domain. Or, the maximum channel bandwidth supported by the terminal device is the maximum frequency resource that the terminal device can use on one carrier at the same time. For example, a terminal device with a bandwidth capability of 5MHz indicates that when data transmission (including reception of downlink data and/or transmission of uplink data) is performed between the terminal device and the network device, the terminal device can be scheduled within a frequency band of 5MHz at maximum. Here, the transmission bandwidth corresponding to this 5MHz band needs to be removed from the guard bandwidth. In particular, in the case of different types of terminal devices being divided according to their bandwidth capabilities, terminal devices having a bandwidth capability smaller than a certain threshold may be regarded as one type of terminal device, while terminal devices having a bandwidth capability larger than the certain threshold may be regarded as another type of terminal device, where the certain threshold may be predefined or preconfigured.

In order to save resources occupied by the indication information, in some cases, the network device may use the same indication identity to indicate whether or not an update of a different first system information block occurs according to a different indication rule. Here, the indication rule characterizes a correspondence between the indication information and one or more first system information blocks of the first set of system information blocks. For the terminal device, it may determine, according to the indication rule, which one or ones of the first set of system information blocks the received indication information corresponds to. Here, the different first system information blocks indicated by the same indication identifier may be updated synchronously, but it should be noted that the time positions of transmission of the different first system information blocks after updating may be the same or different.

For example, assuming that the above indication information includes a first indication identifier and a second indication identifier, where the first indication identifier is used to indicate whether SIB1 is updated, the second indication identifier may be used to indicate whether SIB2 and/or SIB3 is updated for the first type of terminal device, and may be used to indicate whether SIB4 and/or SIB5 is updated for the second type of terminal device, and the correspondence between the second indication identifier and a different first system information block (or may be understood as an indication rule corresponding to the second indication identifier) may be preconfigured.

For another example, it is assumed that the indication information includes a first indication identifier, a second indication identifier, and a third indication identifier. The network device determines that SIB1 is updated, SIB2 and SIB4 are updated, and SIB3 and SIB5 are not updated according to system configuration information or system log information, etc., then the network device may set the first indicator to a first state for indicating that SIB1 is updated, set the second indicator to a first state for indicating that SIB2 and/or SIB4 are updated, and set the third indicator to a second state for indicating that SIB3 and SIB5 are not updated. In this way, the first indication identifier, the second indication identifier and the third indication identifier indicate whether the five system information blocks SIB1, SIB2, SIB3, SIB4 and SIB5 are updated. It should be noted that, when determining the states corresponding to the first indication identifier, the second indication identifier and the third indication identifier, the network device needs to follow predefined indication rules corresponding to the first indication identifier, the second indication identifier and the third indication identifier, where the predefined indication rules are used to characterize whether the first indication identifier in the first indication identifier, the second indication identifier and the third indication identifier is used to indicate whether SIB1 is updated. While the second indication identity and the third indication identity may be used for indicating whether SIB2 and SIB3 are updated, respectively, for the first type of terminal device. The second type of terminal device can be used for indicating whether the SIB4 and the SIB5 are updated or not, so that the subsequent different types of terminal devices can perform different interpretation on the first indication identifier, the second indication identifier and the third indication identifier according to the indication rule. Here, the network device uses the same indication identifier to indicate whether the different first system information blocks are updated, so that communication resources can be saved.

It should be noted that, in the embodiment of the present application, the different first set of system information blocks satisfies the following characteristics: the first system information block set X and the first system information block Y may be considered to be different if at least one of the first system information blocks included in the first system information block set X and the first system information block set Y is different, wherein the first system information block set X includes at least one first system information block and the first system information block set Y includes at least one first system information block.

Optionally, in a scenario where the same indication identifier is used to indicate whether the different first system information block is updated, the network device may further use the different indication identifier of the communication resource to indicate whether the different first system information block is updated. The communication resources here include resources occupied by channels carrying indication information, and specifically may include at least one of the following: time resources, frequency resources, code division resources, radio network temporary identity (radio network tempory identity, RNTI), and size of data transmitted by a channel carrying indication information. For example, assuming that the above indication information includes a first indication identifier and a second indication identifier, the network device indicates whether SIB1 and the first system information block set X are updated at time T1 by using the first indication identifier and the second indication identifier, and indicates whether SIB1 and the first system information block set Y are updated at time T2 by using the first indication identifier and the second indication identifier, respectively. The status of the second indicator sent by the network device at different times may be determined by whether or not the different first sets of system information blocks are updated, but all share the second indicator for indication. Accordingly, different types of terminal devices may determine the moment of receiving the indication information according to predefined criteria or pre-configuration information. Similarly, the network device may also use the same indication identifier on other different communication resources to indicate whether the different first system information blocks are updated, and the specific process may refer to the above-described process that the network device uses the same indication identifier on different time resources to indicate whether the different first system information blocks are updated, which is not repeated herein.

In some possible implementations, the network device may also determine the access indication information before determining the indication information. The access indication information is used to indicate whether it allows the terminal device to access. Here, the access indication information may include a sixth indication identifier. In a specific implementation, the network device may determine whether to allow the terminal device to access according to the current network state and the information such as the location of the terminal device. It can be understood that, in practical application, the network device may also determine whether to allow the terminal device to access according to other information, which is not limited in this application. And if the network equipment determines that the terminal equipment is allowed to be accessed, setting the sixth indication identifier to a first state. And if the network equipment determines that the terminal equipment is not allowed to be accessed, setting the sixth indication identifier to a second state.

In a specific implementation, after the network device determines the access indication information, the network device may send the access indication information. In a specific implementation, the network device may send the access indication information through a demodulation reference signal (demodulation reference signal, DMRS), that is, different access indication information corresponds to different DMRS. Further alternatively, the DMRS may be used for demodulation of a physical broadcast channel, PBCH, channel, or may be used for demodulation of a data channel or a control channel that satisfies a quasi co-location (QCL) relationship with the PBCH. Wherein the channel characteristic on a symbol of one antenna port can be deduced from the other antenna port, and the two ports are considered to meet QCL. Alternatively, the channel estimation result obtained from one port may be used for another port. Here, the difference in access indication information means that the identification states of the sixth indication identifications included are different. Alternatively, the network device may also send the above access indication information through reserved bits in the time information carried by the synchronization signal block (synchronization signal block, SSB). Here, the time information carried by the SSB is time information related to timing, which is additionally added when the physical broadcast channel (physical broadcast channel, PBCH) is processed by the physical layer. This time information typically takes 8 bits, the lower two of which belong to reserved bits. Alternatively, the network device may also send the above access indication information through a spare bit (spare bit) of the master system information block MIB. In the embodiment of the present application, the spare bit and the reserved bit are equivalent and may be used interchangeably, and the embodiment of the present application is not particularly limited.

Further, optionally, the network device may determine the bearer mode of the access indication information according to the frequency range in which the network device operates. As shown in table 1-1, table 1-1 is a bearer type indicator table provided in the embodiments of the present application. The table lists the manner in which bearers may be used for access indication information in different frequency ranges. As shown in table 1-1, if the frequency range in which the network device operates is the first frequency range1 (FR 1), three loading methods, i.e., reserved bits in time information loaded by DMRS and SSB and spare bits in MIB, can be used. Here, the network device operating in the first frequency range1 operates at a frequency less than 3 ghz hz. If the working frequency range of the network device is the second frequency range1, two bearing modes, namely a reserved bit in the time information of the SSB bearing and a spare bit of the MIB, can be used, but the bearing mode of the DMRS is unavailable. Here, the network device operating in the second frequency range1 has an operating frequency greater than or equal to 3 GHz hz and less than or equal to 6GHz. If the frequency range in which the network device operates is frequency range2 (FR 2), only the spare bits of the MIB can be used, and both of the reserved bits in the time information carried by the DMRS and the SSB cannot be used. Here, the network device at the operating frequency range2 has an operating frequency greater than 6GHz.

TABLE 1-1

The access indication information indicates whether the terminal equipment can be accessed to the network equipment, so that invalid search operation which cannot be performed by the network equipment can be avoided, and the power consumption of the terminal equipment can be saved.

It should be further noted that, in practical application, the network device may not only indicate whether the SIB, the first system information block set or any first system information block in the first system information block set is updated through different states of a certain indication identifier included in the indication information, but also use a specific value of the indication information to indicate whether at least two of three kinds of information, that is, the SIB, the first system information block set or any first system information block in the first system information block set is updated at the same time. For example, referring to table 1-2, a simple description will be given below of a procedure in which the network device indicates whether SIB1 and the first system information block set are updated by the value of the indication information. Tables 1-2 are a joint indication table provided in an embodiment of the present application. As shown in tables 1-2, when the network device determines that SIB1 has been updated and the first set of system information blocks has not been updated, the above indication information may be valued as 0. When the network device determines that SIB1 has been updated and the first set of system information blocks has been updated, the above indication information may be valued at 1. When the network device determines that SIB1 is not updated and the first set of system information blocks is updated, the above indication information may be valued at 2. When the network device determines that SIB1 is not updated and the first set of system information blocks is not updated, the above indication information may be valued at 3. Here, it should be understood that the value of the indication information may be determined by the value of one or more bits included in the indication information, or may be determined by other data included in the indication information, which is not particularly limited in this application.

TABLE 1-2

In addition, it should be noted that, in the embodiment of the present application, when whether the SIB1 included in the first system information is updated is indicated by whether the state of the indication identifier is modified, if the SIB1 included in the first system information is updated, the network device may modify the indication identifier (for example, the first indication identifier mentioned above) for indicating whether the SIB1 is updated from the original first state to the second state, or from the original second state to the first state, depending on the state in which the indication identifier corresponding to whether the SIB1 is updated is in when the SIB1 is not updated. The same is true for the first set of system information blocks or the first system information blocks included in the first set of system information blocks, and a detailed description thereof will be omitted. In addition, it should be understood that the first state or the second state of the indication flag is merely used to represent system information before and after the update (in the embodiment of the present application, the system information after the update is taken as different from the system information before the update is taken). In practical application, at different moments, the values corresponding to the first states of the indication marks may be different or the same. In popular terms, the indication marks can be characterized by different values at different moments, and the indication mark in the first state can be 1 at the moment T1, and the indication mark in the first state can be 3 at the moment T2. The second state is also the same, and will not be described here again. For example, assume that the indication corresponding to SIB1 or at least one other first system information block is identified as 2 bits, which 2 bits may represent 4 states, represented by state 0, state 1, state 2, and state 3, respectively. Assuming that at time T1, the system information corresponding to a certain indication mark is updated, and the state corresponding to the indication mark is state 0 (at this time, state 0 may be regarded as a first state) before time T1, then after time T1, the state corresponding to the indication mark may be state 1 (at this time, state 1 may be regarded as a second state). At time T2 (time T2 is after time T1), the system information corresponding to the indication mark is updated again, and then after time T2, the state corresponding to the indication mark may be state 3 (here, state 3 may also be regarded as a second state), and at this time, state 1 corresponding to the indication mark may be regarded as a first state before time T2. For another example, assume that the indication identity of SIB1 or at least one other first system information block corresponds to 1 bit of information, which 1 bit may represent 2 states, represented by state 0, state 1, respectively. Assuming that at time T1, the system information corresponding to the indication mark is updated and before time T1, the state corresponding to the indication mark is state 0 (where state 0 is regarded as the first state), after time T1, the state corresponding to the indication mark may be state 1 (where state 1 may be regarded as the second state). At time T2 (time T2 is after time T1), the state corresponding to the indication flag may be state 0 (at this time, state 0 may be regarded as the second state) after time T2, so that the state corresponding to the indication flag (i.e., state 1) may be regarded as the first state before time T2.

And S20, the network equipment sends the indication information through the PDCCH.

In some possible implementations, after determining the indication information, the network device may send the indication information through PDCCH as a bearer. In a specific implementation, after determining the indication information, the network device may determine one or more reserved bits from downlink control information DCI carried by the PDCCH, and then carry the indication information in the one or more reserved bits, that is, one or more reserved bits in the DCI of the scheduling SIB1 are used to carry the indication information. Here, the DCI described above is used to schedule SIB1. Or after determining the indication information, the network device may further determine one or more reserved bits from the DCI for scheduling paging information, where the DCI for scheduling paging information is carried by the PDCCH, and then carry the indication information in the one or more reserved bits, that is, one or more reserved bits in the DCI for scheduling paging information are used to carry the indication information. In other words, the indication identifier included in the indication information may be a reserved bit in DCI for scheduling SIB1 or a reserved bit in DCI for scheduling paging information. It may be understood that, in practical applications, the network device may also send the indication information through other bearers, which is not particularly limited in the embodiments of the present application.

In some possible implementations, after determining that the first system information is updated, the network device may further send the updated first system information.

S30, the terminal equipment detects the PDCCH and acquires the indication information.

In some possible embodiments, the terminal device may detect the PDCCH in real time or periodically, and determine the indication information from the PDCCH, and the terminal device may determine a time of detecting the PDCCH according to an indication of the network device, and detect the PDCCH. In a specific implementation, the terminal device may obtain DCI by receiving SIB1 PDCCH, and then determine the indication information from one or more reserved bits of the DCI. Alternatively, the terminal device may also read the PDCCH to schedule one or more reserved bits in the DCI of the paging information, and determine the indication information based on the one or more reserved bits.

And S40, if the indication information indicates that the first system information is updated, the terminal equipment receives the updated first system information.

In some possible implementations, after receiving the indication information, the terminal device may determine whether the first system information is updated according to the indication information, and receive the updated first system information if it is determined that the first system information is updated.

In a specific implementation, according to the difference of the objects indicated by the indication information, the process of determining the first system information by the terminal device according to the indication information is also different. The following processes of determining whether the first system information is updated according to the indication information by the terminal device will be specifically described in conjunction with the various processes of determining the indication information described in step S10.

The first determination process is as follows:

for implementation one in step S10, if the indication information includes the first indication identifier, if the terminal device determines that the first indication identifier is in the first state, it may be determined that any one of the SIB1 and/or the at least one first system information block is updated. Alternatively, if the terminal device determines that the first indication identifier is modified from the first state to the second state, it may be determined that the SIB1 and/or any one of the at least one first system information block is updated.

Whether the first system information is updated or not is determined according to the first indication identifier, so that the situation that the first system information is repeatedly acquired under the condition that the first system information is not updated can be avoided, and the power consumption of the terminal equipment can be reduced. And a determination process II:

For implementation two in step S10, if the terminal device determines that the first indication identifier is the first state or is modified from the first state to the second state on the premise that the indication identifier includes the first indication identifier and the second indication identifier, it may be determined that SIB1 is updated. If the terminal device determines that the first indication identifier is in the second state or the state of the first indication identifier is not modified, it may be determined that SIB1 is not updated. If the network device determines that the second indication is identified as the first state or modified from the first state to the second state, it may be determined that an update occurred to the first set of system information blocks.

Whether the SIB1 and the first system information block set are updated is determined according to the first indication identifier and the second indication identifier, so that the phenomenon that the SIB1 or the first system information block set is repeatedly acquired under the condition that the SIB1 or the first system information block set is not updated can be avoided, and the power consumption of terminal equipment can be reduced.

And a determining process III:

for the third implementation manner in step S10, the terminal device may determine whether the SIB1 is updated according to the indication information. It may be further determined specifically which one or more of the first system information blocks in the first set of system information blocks have been updated based on the indication information.

In one implementation, the indication information includes a first indication identifier and a second indication identifier. The first indication identifier may be used to indicate whether SIB1 is updated, and the second indication identifier may be used to indicate whether any one or more of three first system information blocks, SIB2, SIB3, and SIB4, are updated. If the terminal device determines that the first indication identifier and the second indication identifier are both in the first state, or the terminal device determines that both the first indication identifier and the second indication identifier are changed from the first state to the second state, the terminal device may determine that SIB1 is updated, or may determine that any one or more of SIB2, SIB3 or SIB4 is updated. If the terminal device determines that the first indication identifier and the second indication identifier are both in the second state, or the terminal device determines that the states of the first indication identifier and the second indication identifier are not changed, the terminal device may determine that SIB1, SIB2, SIB3 or SIB4 are all updated.

In another implementation, the indication information includes a first indication identifier, a second indication identifier, a third indication identifier and a fourth indication identifier. The first indication identifier may be used to indicate whether SIB1 is updated, and the second indication identifier, the third indication identifier, and the fourth indication identifier are used to indicate whether SIB2, SIB3, and SIB4 are updated, respectively. In a specific implementation, similarly, the terminal device may determine whether SIB1, SIB2, SIB3 or SIB4 is updated according to the first indication identifier, the second indication identifier, the third indication identifier, and the fourth indication identifier, or whether the current state or the state changes.

According to the method, whether the SIB1 and each first system information block included in the first system information block are changed or not is determined in a finer mode according to a plurality of indication identifiers included in the indication information, the updated system information block can be determined more accurately by the terminal device, the terminal device can avoid repeated reading of the system information block more effectively, and power consumption of the terminal device can be further reduced.

And determining a fourth mode:

for the fourth implementation manner in step S10, the terminal device may determine whether the scheduling information of the first system information block set is updated according to the fifth indication identifier, while determining whether SIB1 in the first system information or one or more first system information blocks of the first system information block set terminal are updated according to the indication information. It should be noted that, generally, the scheduling information corresponding to the first system information set (e.g., the time window information corresponding to the first system information block in the network device transmitting the first system information set) is included in the SIB1 PDSCH. Therefore, when the above indication information indicates that SIB1 is updated, two cases may be included. The first case is when the scheduling information of the first set of system information blocks contained in SIB1 is updated. The second case is that other information than the above-mentioned scheduling information in the SIB is updated, but the above-mentioned scheduling information is not updated. Therefore, in order to reduce power consumption of the terminal device for detecting the system information while ensuring flexibility of the network device for transmitting the first system information block included in the first system information block set, the network device may include a fifth indication identifier in the indication information to indicate whether the scheduling information is updated. Therefore, under the condition that the scheduling information is updated but the first system information block and the SIB1 are not updated, the terminal equipment does not need to acquire the information carried in the SIB1 PDSCH, and the updated first system information block is determined according to the acquired calling information corresponding to the first system information block set, so that the power consumption of the terminal equipment for detecting the system information can be reduced while the flexibility of the network equipment for transmitting the first system information block is ensured.

Here, whether the scheduling information of the first system information block set is updated is determined while whether the first system information is updated is determined, so that the terminal equipment is prevented from repeatedly acquiring SIB1 or the first system information block set and simultaneously from repeatedly extracting the scheduling information from SIB1, the power consumption of the terminal equipment is further reduced, and the efficiency of acquiring the first system information by the terminal equipment is improved.

Determining a fifth mode:

with regard to the fifth implementation of step S10, since the above indication information indicates different update conditions of the first system information block for different types of terminal devices. Therefore, before determining whether the first system information is updated according to the indication information, the terminal device needs to determine the corresponding indication rule. In a specific implementation, the indication rule may be predefined, for example, standard protocol specification, or may be obtained by the terminal device from the network device through carriers such as RRC information, MAC information, physical layer information, etc., which is not specifically limited in this application. It should be noted that, for different types of terminal devices, the indication information may be interpreted according to different indication rules. That is, the indication rule is used to characterize the correspondence between the type of the system information block and the indication information.

For example, it is assumed that the above-described indication information includes a second indication identifier and a third indication identifier. If the terminal equipment is the first type terminal equipment, the indication rule corresponding to the terminal equipment is a first indication rule, or the indication rule corresponding to the terminal equipment is determined to be the first indication rule according to the configuration information sent by the network equipment, and the first indication rule can define a second indication identifier and a third indication identifier for indicating whether the SIB2 and the SIB3 are updated or not. If the terminal equipment is second-type terminal equipment, the indication rule corresponding to the terminal equipment is a second indication rule, or the indication rule corresponding to the terminal equipment is determined to be the second indication rule according to the configuration information sent by the network equipment, and the second indication rule can define a second indication identifier and a third indication identifier for indicating whether the SIB4 and the SIB5 are updated or not. The above is merely an exemplary illustration, and the indication rule may be different for different types of terminal devices, but is not limited to the above example.

After determining the corresponding indication rule according to the corresponding terminal type, or determining the corresponding indication rule according to the configuration information sent by the network device, the terminal device can determine one or more first system information blocks indicated by the indication information according to the indication rule. The terminal device may then determine whether the SIB1 and the one or more first system information blocks are updated according to the status of the indication identifier included in the indication information. For example, it is assumed that the above indication information may include a first indication identifier, a second indication identifier, and a third indication identifier. And the terminal equipment determines whether the second indication identifier and the third indication identifier are used for indicating SIB2 and SIB3 to be updated or not according to the corresponding indication rule. After the terminal device obtains the first indication identifier, the second indication identifier and the third indication identifier, if the terminal device determines that the first indication identifier, the second indication identifier and the third indication identifier are all in a first state, or the terminal device determines that the first indication identifier, the second indication identifier and the third indication identifier are all changed from the first state to the second state, the terminal device can determine that the SIB1, the SB2 and the SIB3 are all updated. If the terminal device determines that the first indication identifier, the second indication identifier and the third indication identifier are all in the second state, or the terminal device determines that the first indication identifier, the second indication identifier and the third indication identifier are all unchanged, the terminal device can determine that the SIB1, the SIB2 and the SIB3 are all updated.

The indication information is interpreted according to different indication rules, so that the terminal equipment can accurately determine whether the system information block which tends or focuses on the terminal equipment is updated or not, the terminal equipment can more effectively avoid repeated reading of the system information block, and the power consumption of the terminal equipment can be further reduced.

In some possible implementations, if the terminal device determines that SIB1 in the first system information is updated, the updated SIB1 may be received at the first time. If the terminal equipment determines that at least one first system information block in the first system information is updated, the updated at least one first system information block can be received at the second moment. The first time and the second time may be the same time or may be different times, which is not particularly limited in this application. Here, the first time or the second time may be directly indicated by the network device, or may be predetermined by the network device and the terminal device, for example, specified by a standard protocol, which is not specifically limited in the embodiment of the present application.

In addition, for the network device described above, the indication information is used to indicate whether at least two of the SIB, the first system information block set or any first system information block in the first system information block set are updated at the same time, and after the terminal device obtains the indication information, the terminal device may also determine whether the SIB, the first system information block set or any first system information block in the first system information block set is updated according to the specific indication information. For example, in combination with the content indicated by the indication information value and the content of table 1-2, please refer to table 1-3, table 1-3 is a relation mapping table between the indication information value and the terminal device behavior provided in the embodiment of the present application. The results of whether the SIB1 and the first system information block set indicated by the different values of the indication information are updated and the corresponding system information processing behavior of the terminal device are shown in tables 1-3. Specifically, when the terminal device determines that the indication information has a value of 0, it may determine that SIB1 is updated and the first set of system information blocks is not updated, then SIB1 PDSCH may be interpreted again but the first set of system information blocks is not interpreted. When the terminal device determines that the indication information has a value of 1, it may be determined that SIB1 has been updated and the first set of system information blocks has also been updated, and the SIB1 PDSCH and the first set of system information blocks may be re-interpreted. When the terminal device determines that the indication information has a value of 2, it may be determined that SIB1 is not updated and the first system information block set is updated, and SIB1 may not be interpreted but the first system information block may be re-interpreted. When the terminal device determines that the indication information has a value of 3, it may be determined that SIB1 is not updated and the first system information block set is not updated, both SIB1 and the first system information block may not be interpreted. Here, the indication information is carried in the PDCCH. SIB1 PDSCH denotes a physical downlink shared channel PDSCH carrying SIB1. Not re-interpreting SIB1 and the first set of system information blocks may mean not re-receiving content contained in a channel associated with SIB1 and a channel associated with the first set of system information blocks, where the channel associated with SIB1 includes a PDCCH carrying scheduling information of SIB1 and a PDSCH carrying SIB1, and the channel associated with the first set of system information blocks includes a PDCCH carrying scheduling information of the first set of system information blocks and a PDSCH containing the first set of system information blocks indicating one first information block.

Tables 1 to 3

Referring to fig. 3, fig. 3 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be used to perform the functions of the terminal device in the first embodiment described above. The communication device may be the terminal device itself or may be an element or module within the terminal device. For ease of illustration, only the main components of the communication device are shown in fig. 3. As can be seen from fig. 3, the communication device includes a processor, a memory, a radio frequency circuit, an antenna, and an input/output device. The processor is mainly used for processing communication protocols and communication data, controlling the device, executing software programs, processing data of the software programs and the like. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input-output devices, such as touch screens, display screens, keyboards, etc., are primarily used to receive data entered by a user using the device and to output data to the user. It should be noted that, in some scenarios, the communication device may not include an input/output device.

When data need to be sent, the processor carries out baseband processing on the data to be sent and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit carries out radio frequency processing on the baseband signal and then sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the device, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor is shown in fig. 3. In an actual device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, which is not limited by the embodiments of the present application.

As an alternative implementation, the processor may include a baseband processor, which is mainly used to process the communication protocol and the communication data, and/or a central processor, which is mainly used to control the whole device, execute the software program, and process the data of the software program. The processors in fig. 3 may integrate the functions of the baseband processor and the central processor, and those skilled in the art will appreciate that the baseband processor and the central processor may also be separate processors, interconnected by bus technology, etc. Those skilled in the art will appreciate that the apparatus may include multiple baseband processors to accommodate different network formats, and that the apparatus may include multiple central processors to enhance its processing capabilities, with the various components of the apparatus being connectable via various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The above-mentioned central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, which is executed by the processor to realize the baseband processing function.

In the embodiment of the present application, the antenna and the radio frequency circuit with the transceiver function may be regarded as a transceiver unit of the apparatus, and the processor with the processing function may be regarded as a processing unit of the apparatus. As shown in fig. 3, the communication device includes a transceiving unit 310 and a processing unit 320. Alternatively, the device for implementing the receiving function in the transceiver unit 310 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 310 may be regarded as a transmitting unit, that is, the transceiver unit 310 includes a receiving unit and a transmitting unit. Here, the receiving unit may also be referred to as a receiver, a receiving circuit, or the like. The transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiving unit 310 is configured to perform the process of detecting the PDCCH and acquiring the indication information described in step S30 and the step of reading the updated first system information described in step S40 in the above-described embodiment one. The processing unit 320 is configured to perform the step of determining whether the first system information is updated according to the indication information in step S40.

In one implementation, the first system information includes a SIB1 of a system information block type and a first set of system information blocks other than SIB1, where the first set of system information blocks includes at least one first system information block.

In one implementation, the indication flag included in the indication information is a reserved bit in DCI for scheduling the downlink control information of SIB1 or a reserved bit in DCI for scheduling paging information, and the DCI is carried in the PDCCH.

In one implementation, if the processing unit 320 determines that the indication information indicates that the SIB1 is updated, the transceiver unit 310 receives the updated SIB1 at the first time. And/or, if the processing unit 320 determines that the indication information indicates that the first set of system information blocks is updated, the transceiver unit 310 receives the updated first set of system information blocks at the second time.

In one implementation, if the processing unit 320 determines that the indication information indicates that the SIB1 is updated, the transceiver unit 310 receives the updated SIB1 at the first time. And/or, if the processing unit 320 determines that the indication information indicates that at least one first system information block in the first system information block set is updated, the transceiver unit 310 receives the updated at least one first system information block at the second time.

In one implementation manner, the processing unit 320 determines the at least one first system information block indicated by the indication information according to the obtained indication rule, where the indication rule corresponds to a terminal device.

In one implementation, the transceiver unit 310 is further configured to receive access indication information. The processing unit 320 is further configured to determine whether the network device is allowed to access according to the indication information.

In one implementation, the transceiver unit 310 may further obtain the access indication information through a demodulation reference signal DMRS, a reserved bit in the time information carried by the synchronization signal block SSB, or a reserved bit in the master system information block MIB.

In a specific implementation, the transceiver unit 310 may be configured to detect the PDCCH and obtain the indication information. The specific process may refer to a process of receiving the indication information described in step S30 in the embodiment, and will not be described herein. The processing unit 320 may be configured to trigger the transceiver unit 310 to read the updated first system information if it is determined that the indication information indicates that the first system information is updated. The specific process may take part in the step S40 of the embodiment, and the process of reading the updated first system information if the indication information indicates that the first system information is updated is described in the step S40, which will not be described herein.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 4, the communication apparatus may be applied to the communication system shown in fig. 1, and perform the functions of the network device in the first embodiment. The apparatus may be the network device itself or may be an element or module within the network device. The apparatus may include one or more transceiver units 410 and one or more processing units 420. The transceiver unit 410 may be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna and a radio frequency unit. The transceiver unit 410 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals, for example, for transmitting the indication information in the above embodiments to a terminal device. The processing unit 420 is mainly used for baseband processing, device control, and the like. The transceiver unit 410 and the processing unit 420 may be physically disposed together or may be physically separated, i.e., a distributed device. For example, the processing unit 420 may be configured to control the device to perform the determination process regarding the indication information in the first embodiment. In a specific implementation, the processing unit 420 may be configured by one or more single boards, where the multiple single boards may support a single access indicated radio access network (such as an NR network) together, or may support radio access networks of different access schemes respectively. The processing unit 420 also includes a memory for storing necessary instructions and data, and a processor. The processor is configured to control the apparatus to perform the necessary actions, for example, to control the apparatus to perform the operation procedure related to the apparatus in the method embodiment. The memory and processor may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

As an alternative implementation, the processor may include a baseband processor, which is mainly used to process the communication protocol and the communication data, and/or a central processor, which is mainly used to control the whole device, execute the software program, and process the data of the software program. The processors in fig. 4 may integrate the functions of the baseband processor and the central processor, and those skilled in the art will appreciate that the baseband processor and the central processor may also be separate processors, interconnected by bus technology, etc. Those skilled in the art will appreciate that the apparatus may include multiple baseband processors to accommodate different network formats, and that the apparatus may include multiple central processors to enhance its processing capabilities, with the various components of the apparatus being connectable via various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The above-mentioned central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, which is executed by the processor to realize the baseband processing function.

In one implementation, the processing unit 420 is configured to determine the indication information. The transceiver 410 is configured to transmit the indication message.

In one implementation, the processing unit 420 is configured to perform the determining process of the instruction information in step S10 in the first embodiment. The indication information comprises N indication marks, the states of the N indication marks are used for indicating whether system events included in a first association event group occur or not, the first association event group is composed of N system events which are associated with each other in M system events, and M is larger than N.

In one implementation, the transceiver unit 410 is further configured to perform the transmission of the updated first system information described in step S20 in the first embodiment.

In one implementation, the indication flag included in the indication information is a reserved bit in DCI for scheduling SIB1 or a reserved bit in DCI for scheduling paging information, and the DCI is carried in the PDCCH.

In one implementation, the transceiver unit 410 may be configured to send an indication rule corresponding to a terminal device, where the indication rule is used to determine the at least one first system information block indicated by the indication information.

In one implementation, the processing unit 420 may be configured to determine access indication information that indicates whether it allows access by the terminal device. The transceiver unit 410 may be configured to transmit the above access indication information.

In one implementation, the transceiver unit 410 may send the access indication information through DMRS, reserved bits in time information carried by the synchronization signal block SSB, or reserved bits of MIB.

In particular implementations, processing unit 420 may determine the indication information. The specific process may refer to the determination process of the indication information described in step S10 in the first embodiment, and will not be described herein. The transceiver unit 410 may be configured to transmit the above indication information. The specific process may refer to the process of transmitting the indication information described in step S20 in the first embodiment, and will not be described herein.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be a terminal device in the first embodiment, and may be used to implement a method for transmitting system information implemented by the terminal device in the first embodiment. The device comprises: a processor 51, a memory 52, a transceiver 53, and a bus system 54.

Memory 52 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, which memory 52 is used to store related instructions and data. The memory 52 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:

operation instructions: including various operational instructions for carrying out various operations.

Operating system: including various system programs for implementing various basic services and handling hardware-based tasks.

Only one memory is shown in fig. 5, but a plurality of memories may be provided as needed.

The transceiver 53 may be a communication module, a transceiver circuit. In the embodiment of the present application, the transceiver 53 is used to perform the receiving process of the indication information referred to in the first embodiment.

The processor 51 may be a controller, CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with the disclosure of embodiments of the present application. The procedure of access restriction detection as referred to in embodiment one. The processor 51 may also be a combination that implements computing functionality, e.g., comprising one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

In a particular application, the various components of the apparatus are coupled together by a bus system 54, where the bus system 54 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 54 in fig. 5. For ease of illustration, fig. 5 is only schematically drawn.

It should be noted that, in practical applications, the processor in the embodiments of the present application may be an integrated circuit chip, which has a signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (digital signal Processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or 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) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the present application further provides a computer readable medium, on which a computer program is stored, where the computer program is executed by a computer to implement a method or steps performed by the terminal device in the first embodiment.

The embodiment of the application also provides a computer program product, which when executed by a computer, realizes the method or the step executed by the terminal device in the first embodiment.

The embodiment of the application also provides a communication device, which can be the terminal equipment in the first embodiment. The communication device includes at least one processor and an interface. The processor is configured to perform the method or step performed by the terminal device in the first embodiment. It should be understood that the terminal device may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside of the processor, and independently.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be a network device in the first embodiment, and may be used to implement the method for transmitting system information implemented by the network device in the first embodiment. The device comprises: a processor 61, a memory 62, a transceiver 63 and a bus system 64.

Memory 62 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, which memory 62 is used to store related instructions and data. The memory 62 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:

Only one memory is shown in fig. 6, but a plurality of memories may be provided as needed.

The transceiver 63 may be a communication module, a transceiver circuit. In the embodiment of the present application, the transceiver 63 is used to perform the transmission process of the indication information referred to in the first embodiment.

The processor 61 may be a controller, CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with the disclosure of embodiments of the present application. Processor 61 may also be a combination that performs computing functions, such as including one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

In a particular application, the various components of the device are coupled together by a bus system 64, where the bus system 64 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 64 in fig. 6. For ease of illustration, fig. 6 is drawn only schematically.

The present application further provides a computer readable medium, on which a computer program is stored, where the computer program is executed by a computer to implement the method or the steps performed by the network device in the first embodiment.

The present application further provides a computer program product, which when executed by a computer, implements the method or the steps performed by the network device in the first embodiment.

The embodiment of the application also provides a device, which may be the network equipment in the first embodiment. The apparatus includes at least one processor and an interface. The processor is configured to perform the method or steps performed by the network device in the first embodiment. It should be understood that the network device may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside of the processor, and independently.

In the above method embodiments, the implementation may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product described above includes one or more computer instructions. When the above-described computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber Line, DSL), or wireless (e.g., infrared, wireless, microwave, etc.) means, the computer-readable storage medium may be any available medium that can be accessed by the computer or a data storage device such as a server, data center, etc., that contains an integration of one or more available media, the available media may be magnetic media (e.g., floppy disk, hard disk, tape), optical media (e.g., high-density digital video disc (digital video disc, DVD), or semiconductor media (e.g., solid state disk, SSD), etc., the computer instructions may be stored in a computer-readable medium.

It should be understood that the terms "system" and "network" in the embodiments of the present application are often used interchangeably. The term "and/or" in this embodiment is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus described above is merely illustrative, e.g., the division of elements is merely a logical function division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices, or elements, or may be an electrical, mechanical, or other form of connection.

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

In summary, the foregoing description is only a preferred embodiment of the technical solution of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for transmitting system information, the method comprising:

detecting a Physical Downlink Control Channel (PDCCH), wherein the PDCCH carries indication information, the indication information is used for indicating whether first system information from network equipment is updated, the first system information comprises a system information block type (SIB 1) and a first system information block set except for the SIB1, the first system information block set comprises at least one first system information block, the first system information does not comprise a Master Information Block (MIB), the at least one first system information block corresponding to the indication information is determined by an indication rule, and at least one first system information block determined by different indication rules is partially or completely different, the indication rule corresponds to the equipment type of the terminal equipment, or the indication rule is determined by configuration information sent by the network equipment;

and if the indication information indicates that the first system information is updated, receiving the updated first system information.

2. The method of claim 1, wherein the indication information includes an indication identifier that is a reserved bit in DCI for scheduling the SIB1 downlink control information or a reserved bit in DCI for scheduling paging information, and the DCI is carried in the PDCCH.

3. The method according to claim 1 or 2, wherein if the indication information indicates that the first system information is updated, receiving the updated first system information includes:

if the indication information indicates that the SIB1 is updated, receiving the updated SIB1 at a first moment; and/or the number of the groups of groups,

and if the indication information indicates that the first system information block set is updated, receiving the updated first system information block set at the second moment.

4. The method according to claim 1 or 2, wherein if the indication information indicates that the first system information is updated, receiving the updated first system information includes:

and if the indication information indicates that at least one first system information block in the first system information block set is updated, receiving the updated at least one first system information block at the second moment.

5. The method according to any one of claims 1-4, further comprising:

acquiring access indication information;

And determining whether the network equipment allows the terminal equipment to be accessed according to the access indication information.

6. The method of claim 5, wherein the obtaining access indication information comprises:

and acquiring the access indication information through a demodulation reference signal DMRS, a reserved bit in time information borne by a synchronous signal block SSB or a reserved bit of a main system information block MIB.

7. A method for transmitting system information, the method comprising:

determining indication information, wherein the indication information is used for indicating whether first system information is updated, the first system information comprises a system information block type-SIB 1 and a first system information block set except the SIB1, the first system information block set comprises at least one first system information block, and the first system information does not comprise a master information block MIB;

transmitting the indication information through a Physical Downlink Control Channel (PDCCH);

and sending an indication rule corresponding to the terminal equipment, wherein the indication rule is used for determining the at least one first system information block indicated by the indication information, and the at least one first system information block determined by different indication rules is partially or completely different.

8. The method of claim 7, wherein the method further comprises:

and sending the updated first system information.

9. The method of claim 7 or 8, wherein the indication information comprises an indication identification of a reserved bit in a DCI scheduling the SIB1 or a reserved bit in a DCI scheduling paging information, the DCI being carried in the PDCCH.

10. The method according to any one of claims 7-9, further comprising:

and sending access indication information, wherein the access indication information is used for indicating whether the terminal equipment is allowed to access the network equipment.

11. The method of claim 10, wherein the transmitting the access indication information comprises:

and transmitting the access indication information through the DMRS, reserved bits in time information borne by the synchronous signal block SSB or reserved bits of the MIB.

12. A communication device, the communication device comprising:

a transceiver unit, configured to detect a physical downlink control channel PDCCH, where the PDCCH carries indication information, where the indication information is used to indicate whether first system information from a network device is updated, where the first system information includes a system information block type SIB1 and a first system information block set other than SIB1, where the first system information block set includes at least one first system information block, where the first system information does not include a master information block MIB, where the at least one first system information block indicated by the indication information corresponds to an indication rule, and where at least one first system information block determined by a different indication rule is partially or completely different, where the indication rule corresponds to a device type of a terminal device, or where the indication rule is determined by configuration information sent by the network device;

And the processing unit is used for triggering the receiving and transmitting unit to receive the updated first system information if the indication information indicates that the first system information is updated.

13. The communication apparatus of claim 12, wherein the indication information comprises an indication identification of a reserved bit in a downlink control information, DCI, scheduling the SIB1 or a reserved bit in a DCI scheduling paging information, the DCI being carried in the PDCCH.

14. A communication device according to claim 12 or 13, characterized in that,

if the processing unit determines that the indication information indicates that the SIB1 is updated, triggering the receiving and transmitting unit to receive the updated SIB1 at the first moment; and/or the number of the groups of groups,

and if the processing unit determines that the indication information indicates that the first system information block set is updated, triggering the receiving and transmitting unit to receive the updated first system information block set at the second moment.

15. A communication device according to claim 12 or 13, characterized in that,

And if the processing unit determines that the indication information indicates that at least one first system information block in the first system information block set is updated, triggering the receiving and transmitting unit to receive the updated at least one first system information block at the second moment.

16. A communication device according to any one of claims 12-15, characterized in that,

the transceiver unit is further configured to: acquiring access indication information;

the processing unit is further configured to: and determining whether the network equipment allows the access terminal equipment to access according to the access indication information.

17. The communication device of claim 16, wherein the transceiver unit is further configured to:

18. A communication device, the communication device comprising:

a determining unit, configured to determine indication information, where the indication information is used to indicate whether first system information is updated, where the first system information includes a system information block type SIB1 and a first system information block set other than SIB1, where the first system information block set includes at least one first system information block, and where the first system information does not include a master information block MIB;

A receiving and transmitting unit, configured to send the indication information through a physical downlink control channel PDCCH;

the receiving and transmitting unit is further configured to send an indication rule corresponding to the terminal device, where the indication rule is used to determine the at least one first system information block indicated by the indication information corresponding to the indication rule, and at least one first system information block determined by different indication rules is partially or completely different.

19. The communication device of claim 18, wherein the transceiver unit is further configured to:

and sending the updated first system information.

20. The communication apparatus according to claim 18 or 19, wherein the indication information comprises an indication identification of reserved bits in DCI scheduling the SIB1 or reserved bits in DCI scheduling paging information, the DCI being carried in the PDCCH.

21. The communication device according to any of claims 18-20, wherein the transceiver unit is further configured to:

22. The communication device of claim 21, wherein the transceiver unit is further configured to:

23. A readable storage medium storing instructions which, when executed, cause a method according to any one of claims 1-6 to be implemented.

24. A readable storage medium storing instructions which, when executed, cause a method as claimed in any one of claims 7 to 11 to be implemented.

25. A communication device, comprising: at least one processor and memory;

the memory is used for storing a computer program;

the processor configured to execute a computer program stored in the memory to cause the communication device to perform the method of any one of claims 1-6.

26. A communication device, comprising: at least one processor and memory;

the memory is used for storing a computer program;

the processor configured to execute a computer program stored in the memory to cause the communication device to perform the method of any one of claims 7-11.

27. A communication device, comprising: at least one processor and interface circuitry;

The interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor is configured to execute the code instructions to perform the method of any of claims 1-6.

28. An apparatus, comprising: at least one processor and interface circuitry;

the processor is configured to execute the code instructions to perform the method of any of claims 7-11.