CN107666699B

CN107666699B - A kind of system information transmission method, user terminal, network side equipment and system

Info

Publication number: CN107666699B
Application number: CN201610619959.2A
Authority: CN
Inventors: 贺媛; 鲍炜; 许芳丽
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-07-29
Filing date: 2016-07-29
Publication date: 2019-11-22
Anticipated expiration: 2036-07-29
Also published as: CN107666699A

Abstract

The present invention provides a kind of system information transmission method, UE, network side equipment and system, this method can include: user terminal sends request message to network side equipment, the system information that the request message is used to that the user terminal to be requested to need, the request message carries system information instruction, and it is system information current or after change that the system information instruction, which is used to indicate the system information that the user terminal needs,；The user terminal receives what the network side equipment was sent according to system information instruction, the system information that user terminal described in on-demand system information needs, wherein the on-demand system information is the part system information of the network side equipment.The embodiment of the present invention can reduce the expense of system information.

Description

A kind of system information transmission method, user terminal, network side equipment and system

Technical field

The present invention relates to field of communication technology, in particular to a kind of system information transmission method, user terminal (UE, User Equipment), network side equipment and system.

Background technique

The system information (SI, System Information) of wireless communication system be broadly divided into Master Information Block (MIB, Master Information Block) and multiple system information blocks (SIBs, System Information Blocks), In, system information block may include these system informations of SIB1~SIB20.In practical applications, many scenes are to need to broadcast System information, such as: in user terminal (UE, User Equipment), newly one cell of access or broadcast message change When, it all can broadcast system information.Broadcast is all system informations of broadcast every time at present, i.e., including MIB, SIB1 and SI, these are System information, wherein SI includes SIB2~SIB20, of course, it is also possible to continue to extend.Since system is believed in current wireless communication system Breath is all periodic broadcasting, and with the diversification of wireless communication system business and terminal type continuous evolution, system information it is interior Holding can be more and more, then the expense occupancy of system information can be increasing.As it can be seen that there are systems in wireless communication system at present The excessive problem of information overhead.

Summary of the invention

The purpose of the present invention is to provide a kind of system information transmission method, UE, network side equipment and system, solves and be Unite information overhead it is excessive the problem of.

In order to achieve the above object, the embodiment of the present invention provides a kind of system information transmission method, comprising:

User terminal sends request message to network side equipment, and the request message is for requesting the user terminal needs System information, the request message carries system information instruction, and it is whole that system information instruction is used to indicate the user The system information that end needs is system information current or after change；

The user terminal receives what the network side equipment was sent according to system information instruction, on-demand system letter Cease the system information that user terminal described in (on-demand SI) needs, wherein the on-demand system information is the net The part system information of network side apparatus.

Optionally, the method also includes:

The user terminal receives the system information change instruction that the network side equipment is sent, the system information change Instruction is for notifying the user terminal to change generating system information.

Optionally, described to include: by the change of generating system information

System information is changed when reaching in next modification period；Or

Preset time of the system information after receiving the system information change instruction changes.

Optionally, if the system information is designated as the first preset value, the system letter that the user terminal needs is indicated Breath is the system information after change；

The user terminal receives what the network side equipment was sent according to system information instruction, on-demand system letter The system information that user terminal described in breath needs, comprising:

Before next modification period reaches, the user terminal receives the network side equipment to be believed according to the system Breath instruction is sent, the system information that user terminal described in the on-demand system information needs after change.

Optionally, if the system information is designated as the second preset value, the system letter that the user terminal needs is indicated Breath is current system information,

The user terminal receives what the network side equipment was sent according to system information instruction, and currently described is pressed The system information that user terminal described in the system information needed needs.

Optionally, the user terminal receives what the network side equipment was sent according to system information instruction, on demand System information described in user terminal need system information, comprising:

The user terminal receives the response message that the network side equipment is sent according to system information instruction, described Response message includes the system information that user terminal described in the on-demand system information needs, and further includes activationary time Information, the activationary time information are used to indicate the system information needed after preset time using the user terminal.

Optionally, it is system information that the user terminal after change needs that the user terminal, which receives, then described The system information that user terminal is needed after next modification period reaches using the user terminal is received.

Optionally, if the user terminal is not received by what the network side equipment was sent in system information response window System information, the then on-demand system information that the user terminal needs to carry out next time obtain process；Or

If the user terminal receives the system information that the network side equipment is sent in system information response window and obtains Failed message is taken, then the on-demand system information that the user terminal needs to carry out next time obtains process.

The embodiment of the present invention also provides a kind of system information transmission method, comprising:

Network side equipment receives the request message that user terminal is sent, and the request message is for requesting the user terminal The system information needed, the request message carry system information instruction, and the system information instruction is used to indicate the use The system information that family terminal needs is system information current or after change；

The network side equipment indicates to send in on-demand system information to the user terminal according to the system information The system information that the user terminal needs, wherein the on-demand system information is the part system of the network side equipment Information.

Optionally, the method also includes:

The network side equipment sends system information change instruction, the system information change instruction to the user terminal For notifying the user terminal to change generating system information.

System information is changed when reaching in next modification period；Or

The network side equipment indicates to send in on-demand system information to the user terminal according to the system information The system information that the user terminal needs, comprising:

Before next modification period reaches, the network side equipment is indicated according to the system information, to the use The system information that user terminal described in the on-demand system information needs after the transmission change of family terminal.

The network side equipment indicates according to the system information, Xiang Suoshu user terminal send it is current it is described on demand System information described in user terminal need system information.

Optionally, the network side equipment indicates to send on-demand system to the user terminal according to the system information The system information that user terminal described in information needs, comprising:

The network side equipment indicates to send response message, the response to the user terminal according to the system information Message includes the system information that user terminal described in the on-demand system information needs, and further includes activationary time letter Breath, the activationary time information are used to indicate the system information needed after preset time using the user terminal.

The embodiment of the present invention also provides a kind of user terminal, comprising:

Sending module, for sending request message to network side equipment, the request message is for requesting the user whole The system information needed is held, the request message carries system information instruction, and the system information instruction is used to indicate described The system information that user terminal needs is system information current or after change；

First receiving module indicates transmission according to the system information for receiving the network side equipment, on demand The system information that user terminal described in system information needs, wherein the on-demand system information is the network side equipment Part system information.

Optionally, the user terminal further include:

Second receiving module, the system information change instruction sent for receiving the network side equipment, the system letter Breath change instruction is for notifying the user terminal to change generating system information.

System information is changed when reaching in next modification period；Or

First receiving module is used for before next modification period reaches, and receives the network side equipment according to institute State what system information instruction was sent, the system information that user terminal described in the on-demand system information needs after change.

First receiving module is used to receive what the network side equipment was sent according to system information instruction, currently The on-demand system information described in user terminal need system information.

Optionally, first receiving module indicates to send for receiving the network side equipment according to the system information Response message, the response message include user terminal described in the on-demand system information need system information, with And further include activationary time information, the activationary time information is used to indicate after preset time to be needed using the user terminal System information.

The embodiment of the present invention also provides a kind of network side equipment, comprising:

Receiving module, for receiving the request message of user terminal transmission, the request message is for requesting the user The system information that terminal needs, the request message carry system information instruction, and the system information instruction is used to indicate institute The system information for stating user terminal needs is system information current or after change；

First sending module sends on-demand system information to the user terminal for indicating according to the system information Described in user terminal need system information, wherein the on-demand system information be the network side equipment part system System information.

Optionally, the network side equipment further include:

Second sending module, for sending system information change instruction, the system information change to the user terminal Instruction is for notifying the user terminal to change generating system information.

System information is changed when reaching in next modification period；Or

First sending module is used for before next modification period reaches, and is indicated according to the system information, to The system information that user terminal described in the on-demand system information needs after the user terminal transmission change.

First sending module is used for according to system information instruction, the current institute that Xiang Suoshu user terminal is sent State the system information of the needs of user terminal described in on-demand system information.

Optionally, first sending module is used to be indicated to send to the user terminal according to the system information and respond Message, the response message includes the system information that user terminal described in the on-demand system information needs, and is also wrapped Activationary time information is included, the activationary time information is used to indicate the system needed after preset time using the user terminal Information.

The embodiment of the present invention also provides a kind of system information transmissions system, comprising:

User terminal, for sending request message to network side equipment, the request message is for requesting the user whole The system information needed is held, the request message carries system information instruction, and the system information instruction is used to indicate described The system information that user terminal needs is system information current or after change；

The network side equipment, for receiving the request message of user terminal transmission；

The network side equipment is also used to be indicated according to the system information to send on-demand system to the user terminal The system information that user terminal described in information needs, wherein the on-demand system information is the portion of the network side equipment Subsystem information；

The user terminal is also used to receive what the network side equipment was sent according to system information instruction, described to press The system information that user terminal described in the system information needed needs.

Above-mentioned technical proposal of the invention at least has the following beneficial effects:

The embodiment of the present invention, user terminal send request message to network side equipment, and the request message is for requesting institute The system information of user terminal needs is stated, the request message carries system information instruction, and the system information instruction is used for Indicate that the system information that the user terminal needs is system information current or after change；The user terminal receives institute State what network side equipment was sent according to system information instruction, the system that user terminal described in on-demand system information needs Information, wherein the on-demand system information is the part system information of the network side equipment.System letter may be implemented in this way Breath is sent on demand, and all system informations are all periodic broadcastings compared with prior art, and the embodiment of the present invention can reduce system information Expense.

Detailed description of the invention

Fig. 1 is schematic network structure provided in an embodiment of the present invention；

Fig. 2 is a kind of flow diagram of system information transmission method provided in an embodiment of the present invention；

Fig. 3 is the flow diagram of another system information transmission method provided in an embodiment of the present invention；

Fig. 4 is a kind of structural schematic diagram of UE provided in an embodiment of the present invention；

Fig. 5 is the structural schematic diagram of another kind UE provided in an embodiment of the present invention；

Fig. 6 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention；

Fig. 7 is the structural schematic diagram of another base station provided in an embodiment of the present invention；

Fig. 8 is the structural schematic diagram of another kind UE provided in an embodiment of the present invention；

Fig. 9 is the structural schematic diagram of another base station provided in an embodiment of the present invention；

Figure 10 is a kind of structural schematic diagram of system information transmissions system provided in an embodiment of the present invention.

Specific embodiment

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.

Referring to Fig. 1, Fig. 1 be schematic network structure provided in an embodiment of the present invention, as shown in Figure 1, include one or Multiple UE11 and network side equipment 12, wherein citing signal is carried out with a UE11 in attached drawing.Wherein, UE11 can be mobile phone, Tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) Or the terminal side equipments such as wearable device (Wearable Device), it should be noted that in embodiments of the present invention not Limit the concrete type of UE11.UE11 can be established with network side equipment 12 and be communicated, wherein the network in attached drawing can indicate UE11 is wirelessly established with network side equipment 12 and is communicated, and network side equipment 12 can be base station, and base station can be macro station, such as LTE ENB, 5G NR NB etc.；It is also possible to small station, such as the small station pico, femto low power nodes (LPN:low power node), Or it can be access point (AP, access point)；Network side equipment 12 is also possible to central location (CU, central Unit the multiple transmission receiving points (TRP, Transmission Reception Point)) managed and controlled with it collectively constitute Network node.In addition, have under a base station one or more cells (such as: different frequency points or sector division).It needs It is bright, the concrete type of network side equipment 12 is not limited in embodiments of the present invention.

Based on network structure shown in FIG. 1, the embodiment of the present invention provides a kind of system information transmission method, as shown in Fig. 2, The following steps are included:

201, user terminal sends request message to network side equipment, and the request message is for requesting the user terminal The system information needed, the request message carry system information instruction, and the system information instruction is used to indicate the use The system information that family terminal needs is system information current or after change；

202, user terminal receives what the network side equipment was sent according to system information instruction, on-demand system letter Cease the system information that user terminal described in (on-demand SI) needs, wherein the on-demand system information is the net The part system information of network side apparatus.

In the embodiment of the present invention, user terminal send above-mentioned request message can be system information before changing or change It sends afterwards.In addition, the system information that the above-mentioned requested user terminal of solicited message needs can be user terminal according to certainly Oneself demand, on-demand system information request message (the on-demand SI request sent to network side equipment Message), wherein including system information update instruction.The system information that i.e. above-mentioned user terminal needs be user terminal according to The demand on-demand request of oneself.

In addition, system information when above-mentioned current system information can be understood as sending request message or above-mentioned working as Preceding system information can be understood as system information when network side equipment responds above-mentioned request message to user terminal, it is possible to Be before changing or change after system information.In addition, the system information of above-mentioned change is it can be appreciated that updated system Information, i.e. network side equipment carry out the updated system information of system information, wherein updated system information here can be with Be in the system information (periodic broadcast SI) and on-demand system information of periodic broadcasting it is all or part of into The updated system information of row.Wherein, the system information of above-mentioned periodic broadcasting can be in network side equipment except above-mentioned on-demand System information except system information, such as: the system information of above-mentioned periodic broadcasting, which can be, to be resident cell for UE and connects The system information for entering persistent district, such as all or part of the content in MIB, SIB1 and SIB2.And above-mentioned on-demand system information It can be such as SIB3~SIB20.It should be noted that not limiting system information is MIB and SIB1 in the embodiment of the present invention ~SIB20, such as: system information can also be SIBn, wherein n is that can also be suitable greater than 20 integer or system information Answer the system information of the development extension of future broadband wireless communication systems.Wherein:

SIB1 may include the relevant parameter of broadcast cell access and cell selection and the scheduling information of SI message, can be with Contain one or more SIB2~13；

SIB2 may include the wireless parameter configuration that all UE are shared in cell, other wireless parameter basic configuration；

SIB3 may include cell reselection information, relate generally to serving cell reselecting parameters and co-frequency cell gravity treatment ginseng Number；

SIB4 may include the reselecting parameters of homogeneous-frequency adjacent-domain list and each adjacent area, with frequency list cell list white/black；

SIB5 may include the reselecting parameters of the list of alien frequencies adjacent frequency and each frequency point, alien frequencies neighbor cell list with And reselecting parameters, the alien frequencies blacklist cell list of each adjacent area.

SIB6 may include general land wireless access time division duplex (UMTS Terrestrial Radio Access- Frequency Division Duplexing, UTRAFDD) list of adjacent frequency frequency point and each frequency point reselecting parameters, UTRA The reselecting parameters of TDD adjacent frequency frequency point list and each frequency point；

SIB7 may include GSM and EDGE wireless access network GERAN (GSM EDGE Radio Access Network, GERAN) the reselecting parameters of the list of adjacent frequency frequency point and each frequency point；

SIB8 may include the gravity treatment of the pre-registration of CDMA2000, CDMA2000 adjacent frequency frequency band list and each frequency range The neighboring cell list of parameter, CDMA2000 adjacent frequency frequency range；

SIB9 may include the title of Home eNodeB (Home eNodeB)；

SIB10 may include tsunami warning system (Earthquake and Tsunami Warning System, ETWS) main notice (primary notification)；

SIB11 may include the auxiliary notice (secondary notification) of ETWS；

SIB12 may include that business mobile alert service (Commercial Mobile Alert Service, CMAS) is logical Know (CMAS notification)；

SIB13 may include obtaining with one or more Multicast Broadcast Single Frequency Networks (Multicast Broadcast Single Frequency Network, MBSFN) the relevant multimedia broadcasting and multicast function (Multimedia in region Broadcast Multicast Service, MBMS) control information information.

The characteristic that SIB14~SIB20 respectively has it to be directed to, no longer describes one by one.

In the embodiment of the present invention, network side equipment receive be assured that above-mentioned UE needs after above-mentioned request message be System information, such as: the system information of above-mentioned request message requests is SIB3 and SIB4.Network side equipment determines the system that UE needs After information, so that it may UE in the on-demand system information that (specifically will indicate to determine by above system information) currently or after change The system information needed is sent to UE.Such as: above-mentioned on-demand system information includes SIB3 to SIB20, and above system information Instruction is used to indicate current system information, then, network side equipment can by SIB3 of the current SIB3 into SIB20 and SIB4 is sent to UE, similarly, the system information after change can be sent.In addition, in the embodiment of the present invention, on-demand system information It can be understood as on-demand SI.

In addition, it is necessary to which it can be exactly above-mentioned that is illustrated, which is the system information that UE described in above-mentioned on-demand system information needs, The system information that the requested UE of request message needs.Such as: UE of the above-mentioned request message requests currently or after change needs System information be SIB3 and SIB4, and the on-demand system information after network side equipment current or change include SIB3 and SIB4；Or the system information that UE described in above-mentioned on-demand system information needs can be that above-mentioned request message is requested to work as It is preceding perhaps change after the system information that needs of UE in part for example: after above-mentioned request message requests are current or change The system information that UE needs is SIB3, SIB4 and SIB21, and the on-demand system after the current or change of network side equipment is believed Breath is SIB3 to SIB20, then, the system information that UE described in above-mentioned on-demand system information needs is exactly SIB3 and SIB4, I.e. network side equipment only returns the system information that part UE needs to UE.

System information may be implemented through the above steps to be sent according to the demand of UE, in this way can be to avoid to UE The unwanted system information of UE is sent, to avoid expense waste, achievees the purpose that save transfer resource.Certainly, the present invention is implemented In example, user terminal can also receive the system information in addition to above-mentioned on-demand system information of network side equipment transmission, example Such as: the system information (periodic broadcast SI) of above-mentioned periodic broadcasting, which can be periodic broadcasting, or Person is aperiodic or with the forms of broadcasting send also possible.

Optionally, method described above further include:

In the embodiment, it may be implemented to notify user terminal to believe generating system by above system information change instruction Breath change.Such as: network side equipment can be by Idle state/inactive UE (idle/inactive UE) and connected state UE (connected UE) sends RRC information, such as paging (Paging) message, wherein include 1bit system information change instruction, It is set to true (true), so that UE be notified to change generating system information.If what UE can be properly received network side equipment transmission is System information change instruction, then the UE can know that system information will change.For example, being resident the free time in a network State/inactive UE, and establish with network the connected state UE of connection.

It should be noted that it is same that user terminal does not receive above system information change instruction in the embodiment of the present invention It can be achieved on, such as: UE, which fails, receives the system information change instruction of network side equipment transmission, to not know and be System information will change.Such as the UE that has just been switched on outside Paging message sending time or in discontinuous reception (DRX, Discontinuous reception) close (i.e. DRX OFF) state UE.

(such as: Paging message) can be in addition, above system information change instruction only sends whithin a period of time, example It is as follows such as several radio frames:

PCCH-Config::=SEQUENCE

defaultPagingCycle ENUMERATED{

rf32,rf64,rf128,rf256},

Therefore, UE is likely to occur the case where receiving success or failure.

Optionally, above-mentioned to include: by the change of generating system information in the embodiment

System information is changed when reaching in next modification period；Or

In the embodiment, client terminal system information can be notified next by above system information change instruction Modify the preset time hair that change or system information occur when period arrival after receiving the system information change instruction It changes more, wherein here presetting at the time can be and carry in the message for sending above system information change instruction, or can be with It is network side equipment and user terminal consults in advance etc..

In the embodiment, when may be implemented to be designated as the first preset value by above system information, user terminal is to net System information after the request change of network side apparatus, i.e., after carrying out system information change to network side equipment request network side equipment System information.It should be noted that network side equipment in altering system information, can be all or part of system letter of change The system information that breath, i.e. user equipment need may change, it is also possible to and there is no changes, such as: user terminal needs System information be SIB3 and SIB4, wherein network side equipment carry out system information change when, SIB3 has altered, and SIB4 is not changed, then, it is exactly the SIB3 after change, and the SIB4 not changed that user terminal, which receives system information,. In addition, above-mentioned request message can be and send before changing in system information, and such as: UE is properly received system information change instruction Afterwards, the on-demand system information after needing to obtain change, then UE can be in the forward direction network side of next modification period arrival Equipment sends on-demand system information request message (request message i.e. in step 201), wherein more comprising 1bit system information New instruction, and it is set to 1 (or true), indicate the system letter that UE is needed to the user terminal after network side equipment request change Breath.

It in the embodiment, may be implemented to be designated as the second preset value by above system information, user terminal is to network The system information that user terminal needs in the current on-demand system information of side apparatus request.Wherein, here current on-demand System information can be before changing or change after system information, specifically by request message send time determine.In addition, should In embodiment, no matter whether user terminal receives above system information change instruction, can pass through above system information It is designated as the second preset value, the system information that user terminal needs in the on-demand system information current to network side equipment request. Such as: no matter UE success or fail and receives system information change instruction, if the UE needs to obtain and on-demand is before changing The system information that user terminal needs in information of uniting, then UE is sent in the forward direction network side equipment of next modification period arrival On-demand system information request message, wherein include 1bit system information update instruction, and (the perhaps false or not that is set to 0 Occur), indicate the system information that UE is needed to current (before changing) user terminal of network side request.

Another example is: no matter UE, which succeeds or fails, receives system information change instruction, if it needs to obtain after updating On-demand system information in user terminal need system information, then UE is in the rear to network of next modification period arrival Side apparatus sends on-demand system information request message, wherein include 1bit system information update instruction, and be set to 0 (or False, or do not occur), indicate UE (change after) the on-demand system information current to network side equipment request.

Further, UE, which fails, receives system information change instruction, needs to obtain current on-demand system information The system that middle user terminal needs, for example, low time delay high reliable communication (Ultra-Reliable and Low Latency Communications, URLLC) UE is just switched on, fails and receive system information change instruction, however if it is needed in time The system information needed is obtained, access delay requires height, then the UE can send on-demand system information to network side immediately Request message wherein including 1bit system information update instruction, and is set to 0, indicates that UE is pressed to network side equipment request is current The system that user terminal needs in the system information needed.It is requested before being reached if it is next modification period, then UE is requested Be in system information on-demand before changing user terminal need system information, if it is next modification period arrival after Request, then UE request is user terminal needs in on-demand system information after change system.

Optionally, in the numerous embodiments of above-mentioned introduction, above-mentioned user terminal receive the network side equipment according to What the system information instruction was sent, the system information that user terminal described in on-demand system information needs, comprising:

In the embodiment, it may be implemented to carry activationary time (activation time) letter in above-mentioned response message Breath, to indicate system information that UE uses (or enabling) to receive after this preset time.Wherein, above-mentioned response message can To be when receiving above-mentioned request message, network side equipment responds the request message, to send above-mentioned response to user terminal Message, such as: in the above-mentioned response message that system information is sent before changing.

In addition, above-mentioned response message can be understood as on-demand system information response message (on-demand SI Response message), i.e. the on-demand system information request message that is sent according to UE of network side equipment can be mentioned in conjunction with oneself The on-demand system information supplied, sends on-demand system information response message (on-demand SI response to UE message).Certainly, in some scenes, that UE is received may be on-demand system information failed message (on-demand SI failure message), such as: the system information that user terminal needs is not present in network side equipment, as user terminal needs The system information wanted is SIB21, and SIB21 is not present in network side equipment.If the on-demand system letter that network side equipment provides Comprising system information on-demand needed for all or part UE in breath, then network side equipment sends on-demand system information to UE Response message, wherein including available all or part of system information；If the on-demand system information that network side provides In do not include UE needed for on-demand system information, then the lateral UE of network sends on-demand system information failed message.Below By taking on-demand system information response message as an example, illustrate the behavior of network side equipment.

If user terminal requests is system information after change, network side equipment can arrive in next modification period On-demand system information response message is sent to UE it after, wherein needing comprising user terminal in system information on-demand after change The system information wanted.

If user terminal is requesting current system information before changing, network side equipment can be in next modification period The forward direction UE of arrival sends on-demand system information response message, wherein including user terminal in system information on-demand before changing The system information needed.

If user terminal requests current system information after change, network side equipment can be in next modification period The rear of arrival sends on-demand system information response message to UE, wherein including user terminal in system information on-demand after change The system information needed.

It should be noted that above-mentioned response message does not include that above-mentioned activationary time information also can be achieved on, and such as: institute Stating user terminal and receiving is system information that the user terminal after change needs, then the user terminal is repaired next Change the system information needed after period arrival using the UE is received.

In the embodiment, if user terminal may be implemented to receive to be that user terminal needs in on-demand system information after changing The system information wanted, the then system that user terminal is needed after next modification period reaches using the user terminal is received Information.In addition, it is above-mentioned next modification period reach after using can be understood as next modification period arrival when use, Or begin to use when reaching in next modification period.In addition, it is necessary to illustrate, in the embodiment of the present invention, as long as user What terminal received is the system information that user terminal needs in system information on-demand after changing, then, user terminal can To be after next modification period reaches using the system information for receiving user terminal needs.

In the embodiment, if the user terminal needs that user terminal is not received by network side equipment transmission may be implemented System information, user terminal can carry out on-demand system information next time and obtain process.Wherein, here on-demand is System acquisition of information process can be the process for executing above-mentioned steps 201 and step 202, obtain user terminal to realize to re-request The system information needed.Such as: UE receives on-demand system information response message or is pressed in on-demand system information response window The system information failed message needed.If UE does not receive the feedback of network side equipment, it is believed that on-demand system information is requested to be lost It loses, then the on-demand system information that UE needs to carry out next time transmits and receives process.Such as: UE is rung in on-demand system information It answers and receives on-demand system information response message in window, wherein needed comprising user terminal in system information on-demand after change System information；Or UE receives on-demand system information response message in on-demand system information response window, wherein comprising becoming The system that user terminal needs in more preceding on-demand system information.

It should be noted that can mutually be tied between the embodiment of the plurality of optional of above-mentioned introduction in the embodiment of the present invention It closes and realizes, can also be implemented separately, this embodiment of the present invention is not construed as limiting.

Based on network structure shown in FIG. 1, the embodiment of the present invention provides another system information transmission method, such as Fig. 3 institute Show, comprising the following steps:

301, network side equipment receives the request message that user terminal is sent, and the request message is for requesting the user The system information that terminal needs, the request message carry system information instruction, and the system information instruction is used to indicate institute The system information for stating user terminal needs is system information current or after change；

302, network side equipment indicates to send in on-demand system information to the user terminal according to the system information The system information that the user terminal needs, wherein the on-demand system information is the part system of the network side equipment Information.

Optionally, the method also includes:

System information is changed when reaching in next modification period；Or

It should be noted that the present embodiment as with the embodiment party of corresponding network side equipment in embodiment shown in Fig. 2 Formula, specific embodiment may refer to the related description of embodiment shown in Fig. 2, with to avoid repeated explanation, this implementation Example repeats no more.In the present embodiment, the expense for reducing system information equally may be implemented.

The embodiment introduced in above example is illustrated with multiple citings below:

Example 1:

The citing is properly received on-demand after changing after system information change instruction with Idle state/inactive UE System information acquisition process is illustrated: specific workflow can be such that

Step 1, network side equipment are by RRC information, such as paging (Paging) message, wherein including 1bit system information Change instruction is set to true, so that Idle state/inactive UE1 be notified to change generating system information.

Step 2, UE1 are properly received the system information change instruction that network side equipment is sent, to know that system information will It changes.

The system information that UE1 needs in system information step 3, UE1 on-demand after needing acquisition to change, then UE1 is under The forward direction network side equipment of one modification period arrival sends on-demand system information request message, wherein believing comprising 1bit system Update instruction is ceased, and is set to 1, indicates that UE1 requests the system letter that UE1 needs in system information on-demand after changing to network side Breath.

Step 4, network side equipment send on-demand system information response in the forward direction UE1 of next modification period arrival and disappear Breath, wherein the system information needed comprising UE1 in system information on-demand after change.

Step 5, UE1 receive on-demand system information response message in on-demand system information response window, wherein including The system information that UE1 needs in on-demand system information after change.Wherein, UE can be used after next modification period reaches The system information that (or enabling) receives.Wherein, (or enabling) is used to can be understood as under after next modification period reaches One modification period uses (or enabling) when reaching, or begins to use (or enabling) when reaching in next modification period.

In addition, can also be following steps in example 1:

Step 4, network side equipment send on-demand system information response in the forward direction UE1 of next modification period arrival and disappear Breath, wherein indicating UE1 at this comprising the system information needed of UE1 in system information on-demand after change and activationary time The system information received is enabled after the preset time.

Step 5, UE1 receive on-demand system information response message in on-demand system information response window, wherein including The system information that UE1 needs in on-demand system information after change, and the system for using (or enabling) to receive after activationary time Information.

Example 2:

The citing is properly received the on-demand system information carried out after system information change instruction before changing with connected state UE Acquisition process is illustrated, and specific workflow can be such that

Step 1, network side equipment are by RRC information, such as Paging (paging) message, wherein including 1bit system information Change instruction is set to true, so that connected state UE2 be notified to change generating system information.

Step 2, UE2 are properly received the system information change instruction that network side equipment is sent, to know that system information will It changes.

Step 3, UE2 need to obtain the system information that UE2 needs in system information on-demand before changing, then UE2 is under The forward direction network side of one modification period arrival sends on-demand system information request message, wherein more comprising 1bit system information New instruction, and it is set to 0, what expression UE2 UE2 into the current system information on-demand (before update) of network side request needed is System information.

Step 4, network side equipment send on-demand system information response in the forward direction UE2 of next modification period arrival and disappear Breath, wherein the system information needed comprising UE2 in on-demand system information before changing.

Step 5, UE2 receive on-demand system information response message in on-demand system information response window, wherein including The system information that UE2 needs in on-demand system information before changing.

Example 3:

The citing is failed with URLLC UE receive system information change instruction after carry out on-demand system before changing Information access process is illustrated, wherein specific workflow can be such that

Step 1, network side equipment, wherein including 1bit system information change instruction, are set to true by RRC information, from And UE is notified to change generating system information.

Step 2, URLLC UE3 are just switched on, and fail and receive system information change instruction.

Step 3, UE3 need to obtain on-demand system information in time, and access delay requires height, then UE3 is immediately to network Side sends on-demand system information request message, wherein including 1bit system information update instruction, and is set to 0, indicates UE to net The system information that user terminal needs in the current on-demand system information of network side request.At this point, UE3 is in next modification week Phase requests before reaching, then UE3 request is UE3 needs in on-demand system information before changing system information.

Step 4, network side equipment send on-demand system information response in the forward direction UE3 of next modification period arrival and disappear Breath, wherein the system information needed comprising UE3 in on-demand system information before changing.

Step 5, UE3 receive on-demand system information response message in on-demand system information response window, wherein including The system information that UE3 needs in on-demand system information before changing.

Example 4:

The citing is failed with UE receive system information change instruction after carry out updated on-demand system information and obtain Being illustrated for process is taken, specific workflow can be such that

Step 2, UE4 are in the OFF state of DRX within the time that network side equipment sends RRC information, and fail reception System information change instruction.

The system information that UE4 needs in system information step 3, UE4 on-demand after needing acquisition to change, then UE4 is under One modification the rear of period arrival sends on-demand system information request message to network side, wherein more comprising 1bit system information New instruction, and it is set to 0, what expression UE4 UE4 into the on-demand system information of network side request current (updated) needed is System information.

Step 4, network side equipment next modification period arrivals it is rear send on-demand system information to UE4 and respond disappear Breath, wherein indicating UE4 at this comprising the system information needed of UE4 in system information on-demand after change and activationary time The system information received is enabled after the preset time.

Step 5, UE4 receive on-demand system information response message in on-demand system information response window, wherein including The system information that UE4 needs in on-demand system information after change, and the system information received is enabled after activationary time.

Referring to fig. 4, the structure of UE a kind of is shown, UE40 includes following module in figure:

Sending module 401, for sending request message to network side equipment, the request message is for requesting the user The system information that terminal needs, the request message carry system information instruction, and the system information instruction is used to indicate institute The system information for stating user terminal needs is system information current or after change；

First receiving module 402, for receiving the network side equipment according to system information instruction transmission, on demand System information described in user terminal need system information, wherein the on-demand system information be the network side set Standby part system information.

Optionally, as shown in figure 5, user terminal 40 further include:

Second receiving module 403, the system information change instruction sent for receiving the network side equipment, the system Information change instruction is for notifying the user terminal to change generating system information.

System information is changed when reaching in next modification period；Or

First receiving module 402 is used for before next modification period reaches, and receives the network side equipment according to institute State what system information instruction was sent, the system information that user terminal described in the on-demand system information needs after change.

First receiving module 402 is used to receive what the network side equipment was sent according to system information instruction, currently The on-demand system information described in user terminal need system information.

Optionally, the first receiving module 402 indicates to send for receiving the network side equipment according to the system information Response message, the response message include user terminal described in the on-demand system information need system information, with And further include activationary time information, the activationary time information is used to indicate after preset time to be needed using the user terminal System information.

It should be noted that in the present embodiment above-mentioned UE40 can be in the embodiment of the present invention it is any real in embodiment of the method The UE of mode is applied, any embodiment of UE can be by above-mentioned in the present embodiment in embodiment of the method in the embodiment of the present invention UE40 is realized, and reaches identical beneficial effect, and details are not described herein again.

Referring to Fig. 6, a kind of structure of network side equipment is shown in figure, network side equipment 600 includes following module:

Receiving module 601, for receiving the request message of user terminal transmission, the request message is for requesting the use The system information that family terminal needs, the request message carry system information instruction, and the system information instruction is used to indicate The system information that the user terminal needs is system information current or after change；

First sending module 602 sends on-demand system to the user terminal for indicating according to the system information The system information that user terminal described in information needs, wherein the on-demand system information is the portion of the network side equipment Subsystem information.

Optionally, as shown in fig. 7, network side equipment 600 further include:

Second sending module 603, for sending system information change instruction to the user terminal, the system information becomes More instruction is for notifying the user terminal to change generating system information.

System information is changed when reaching in next modification period；Or

First sending module 602 is used for before next modification period reaches, and is indicated according to the system information, to institute State the system information that user terminal described in the on-demand system information needs after user terminal transmission is changed.

First sending module 602 is used for according to system information instruction, the current institute that Xiang Suoshu user terminal is sent State the system information of the needs of user terminal described in on-demand system information.

Optionally, the first sending module 602 is used to be indicated to send to the user terminal according to the system information and respond Message, the response message includes the system information that user terminal described in the on-demand system information needs, and is also wrapped Activationary time information is included, the activationary time information is used to indicate the system needed after preset time using the user terminal Information.

It should be noted that above-mentioned network side equipment 600 can be method implementation in the embodiment of the present invention in the present embodiment The network side equipment of any embodiment in example, in the embodiment of the present invention in embodiment of the method network side equipment any embodiment party Formula can be realized by the above-mentioned network side equipment 600 in the present embodiment, and reach identical beneficial effect, herein no longer It repeats.

Referring to Fig. 8, the structure of UE a kind of is shown in figure, the UE include: processor 800, transceiver 810, memory 820, User interface 830 and bus interface, in which:

Processor 800 executes following process for reading the program in memory 820:

Request message is sent to network side equipment by transceiver 810, the request message is for requesting the user whole The system information needed is held, the request message carries system information instruction, and the system information instruction is used to indicate described The system information that user terminal needs is system information current or after change；

Receive what the network side equipment was sent according to system information instruction by transceiver 810, on-demand system The system information that user terminal described in information (on-demand SI) needs, wherein the on-demand system information is described The part system information of network side equipment.

Wherein, transceiver 810, for sending and receiving data under the control of processor 800.

In fig. 8, bus architecture may include the bus and bridge of any number of interconnection, specifically be represented by processor 800 One or more processors and the various circuits of memory that represent of memory 820 link together.Bus architecture can be with Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like are linked together, these are all these Well known to field, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 810 can be Multiple element includes transmitter and receiver, provides the unit for communicating over a transmission medium with various other devices.Needle To different user equipmenies, user interface 830, which can also be, external the interface for needing equipment is inscribed, and the equipment of connection includes But be not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 800, which is responsible for management bus architecture and common processing, memory 820, can store processor 800 and is holding Used data when row operation.

Optionally, processor 800 is also used to:

The system information change instruction that the network side equipment is sent is received by transceiver 810, the system information becomes More instruction is for notifying the user terminal to change generating system information.

System information is changed when reaching in next modification period；Or

It is described to receive what the network side equipment was sent according to system information instruction, described in on-demand system information The system information that user terminal needs, comprising:

Before next modification period reaches, receives the network side equipment and indicate to send according to the system information , the system information that user terminal described in the on-demand system information needs after change.

Receive what the network side equipment was sent according to system information instruction, the current on-demand system information Described in user terminal need system information.

Optionally, described to receive what the network side equipment was sent according to system information instruction, on-demand system letter The system information that user terminal described in breath needs, comprising:

The response message that the network side equipment is sent according to system information instruction is received, the response message includes The system information that user terminal described in the on-demand system information needs, and further include activationary time information, it is described to swash Live time information is used to indicate the system information needed after preset time using the user terminal.

It should be noted that above-mentioned UE can be in the embodiment of the present invention and arbitrarily implement in embodiment of the method in the present embodiment The UE of mode, any embodiment of UE can be by the above-mentioned UE in the present embodiment in embodiment of the method in the embodiment of the present invention It is realized, and reaches identical beneficial effect, details are not described herein again.

Referring to Fig. 9, a kind of structure of network side equipment is shown in figure, which includes: processor 900, transmitting-receiving Machine 910, memory 920, user interface 930 and bus interface, in which:

Processor 900 executes following process for reading the program in memory 920:

The request message that user terminal is sent is received by transceiver 910, the request message is for requesting the user The system information that terminal needs, the request message carry system information instruction, and the system information instruction is used to indicate institute The system information for stating user terminal needs is system information current or after change；

It is indicated to send institute in on-demand system information to the user terminal according to the system information by transceiver 910 State the system information of user terminal needs, wherein the on-demand system information is that the part system of the network side equipment is believed Breath.

Wherein, transceiver 910, for sending and receiving data under the control of processor 900.

In Fig. 9, bus architecture may include the bus and bridge of any number of interconnection, specifically be represented by processor 900 One or more processors and the various circuits of memory that represent of memory 920 link together.Bus architecture can be with Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like are linked together, these are all these Well known to field, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 910 can be Multiple element includes transmitter and receiver, provides the unit for communicating over a transmission medium with various other devices.Needle To different user equipmenies, user interface 930, which can also be, external the interface for needing equipment is inscribed, and the equipment of connection includes But be not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 900, which is responsible for management bus architecture and common processing, memory 920, can store processor 900 and is holding Used data when row operation.

Optionally, processor 900 is also used to:

System information is changed when reaching in next modification period；Or

It is described to be indicated to send the end of user described in on-demand system information to the user terminal according to the system information Hold the system information needed, comprising:

It before next modification period reaches, is indicated according to the system information, Xiang Suoshu user terminal sends change The system information that user terminal described in the on-demand system information needs afterwards.

It is indicated according to the system information, institute in the current on-demand system information that Xiang Suoshu user terminal is sent State the system information of user terminal needs.

Optionally, described to indicate to send described in on-demand system information to the user terminal according to the system information The system information that user terminal needs, comprising:

It is indicated to send response message to the user terminal according to the system information, the response message includes described presses The system information that user terminal described in the system information needed needs, and further include activationary time information, the activationary time Information is used to indicate the system information needed after preset time using the user terminal.

It should be noted that above-mentioned network side equipment can be in the embodiment of the present invention in embodiment of the method in the present embodiment The network side equipment of any embodiment, any embodiment of network side equipment is all in embodiment of the method in the embodiment of the present invention It can be realized by the above-mentioned network side equipment in the present embodiment, and reach identical beneficial effect, details are not described herein again.

Referring to Figure 10, a kind of structure of system information transmissions system is shown in figure, comprising:

User terminal 1001, for sending request message to network side equipment 1002, the request message is for requesting institute The system information of user terminal needs is stated, the request message carries system information instruction, and the system information instruction is used for Indicate that the system information that the user terminal needs is system information current or after change；

The network side equipment 1002, for receiving the request message of the transmission of user terminal 1001；

The network side equipment 1002 is also used to be indicated according to the system information to send to the user terminal on-demand The system information that user terminal described in system information needs, wherein the on-demand system information is the network side equipment Part system information；

The user terminal 1001 is also used to receive the network side equipment 1002 and indicates to send according to the system information , the system information that user terminal described in the on-demand system information needs.

In the present embodiment, network side equipment 1002 and UE1001 can be the network introduced in Fig. 1-embodiment illustrated in fig. 9 Side apparatus and UE, embodiments thereof can also reach identical technical effect referring to Fig. 1-embodiment shown in Fig. 9, Details are not described herein.

In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit Connection can be electrical property, mechanical or other forms.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.

The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention Part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store The medium of program code.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of system information transmission method characterized by comprising

User terminal sends request message to network side equipment, and what the request message was used to that the user terminal to be requested to need is System information, the request message carry system information instruction, and the system information instruction, which is used to indicate the user terminal, to be needed The system information wanted is system information current or after change；

The user terminal receives what the network side equipment was sent according to system information instruction, in on-demand system information The system information that the user terminal needs, wherein the on-demand system information is the part system of the network side equipment Information.

2. the method as described in claim 1, which is characterized in that the method also includes:

The user terminal receives the system information change instruction that the network side equipment is sent, the system information change instruction For notifying the user terminal to change generating system information.

3. method according to claim 2, which is characterized in that described to include: by the change of generating system information

System information is changed when reaching in next modification period；Or

4. the method as described in claim 1, which is characterized in that if the system information is designated as the first preset value, indicate The system information that the user terminal needs is the system information after change；

The user terminal receives what the network side equipment was sent according to system information instruction, in on-demand system information The system information that the user terminal needs, comprising:

Before next modification period reaches, the user terminal receives the network side equipment and is referred to according to the system information Show transmission, the system information that user terminal described in the on-demand system information needs after change.

5. the method as described in claim 1, which is characterized in that if the system information is designated as the second preset value, indicate The system information that the user terminal needs is current system information,

The user terminal receives what the network side equipment was sent according to system information instruction, current described on-demand The system information that user terminal described in system information needs.

6. method according to any one of claims 1 to 5, which is characterized in that the user terminal receives the network side and sets It is standby according to system information instruction transmission, the system information that user terminal described in on-demand system information needs, comprising:

The user terminal receives the response message that the network side equipment is sent according to system information instruction, the response Message includes the system information that user terminal described in the on-demand system information needs, and further includes activationary time letter Breath, the activationary time information are used to indicate the system information needed after preset time using the user terminal.

7. method according to any one of claims 1 to 5, which is characterized in that it is after changing that the user terminal, which receives, The system information that the user terminal needs, then the user terminal is described using receiving after next modification period reaches The system information that user terminal needs.

8. method according to any one of claims 1 to 5, which is characterized in that if the user terminal is responded in system information The system information that the network side equipment is sent is not received by window, then the user terminal needs to carry out next time on-demand System information obtain process；Or

If the user terminal receives the system information that the network side equipment is sent in system information response window and obtains mistake Message is lost, then the on-demand system information that the user terminal needs to carry out next time obtains process.

9. a kind of system information transmission method characterized by comprising

Network side equipment receives the request message that user terminal is sent, and the request message is for requesting the user terminal needs System information, the request message carries system information instruction, and it is whole that system information instruction is used to indicate the user The system information that end needs is system information current or after change；

The network side equipment indicates to send described in on-demand system information to the user terminal according to the system information The system information that user terminal needs, wherein the on-demand system information is the part system information of the network side equipment.

10. method as claimed in claim 9, which is characterized in that the method also includes:

The network side equipment sends system information change instruction to the user terminal, and the system information change instruction is used for The user terminal is notified to change generating system information.

11. method as claimed in claim 10, which is characterized in that described to include: by the change of generating system information

System information is changed when reaching in next modification period；Or

12. method as claimed in claim 9, which is characterized in that if the system information is designated as the first preset value, indicate The system information that the user terminal needs is the system information after change；

The network side equipment indicates to send described in on-demand system information to the user terminal according to the system information The system information that user terminal needs, comprising:

Before next modification period reaches, the network side equipment is indicated according to the system information, and Xiang Suoshu user is whole The system information that user terminal described in the on-demand system information needs after the transmission change of end.

13. method as claimed in claim 9, which is characterized in that if the system information is designated as the second preset value, indicate The system information that the user terminal needs is current system information,

The network side equipment indicates according to the system information, and what Xiang Suoshu user terminal was sent current described on-demand is The system information that user terminal described in information of uniting needs.

14. the method as described in any one of claim 9-13, which is characterized in that the network side equipment is according to the system Information indicates the system information that the needs of user terminal described in on-demand system information are sent to the user terminal, comprising:

The network side equipment indicates to send response message, the response message to the user terminal according to the system information It including the system information that user terminal described in the on-demand system information needs, and further include activationary time information, institute It states activationary time information and is used to indicate the system information needed after preset time using the user terminal.

15. the method as described in any one of claim 9-13, which is characterized in that the user terminal receives after being change The user terminal need system information, then the user terminal next modification period arrival after using receiving State the system information of user terminal needs.

16. the method as described in any one of claim 9-13, which is characterized in that if the user terminal is rung in system information It answers and is not received by the system information that the network side equipment is sent in window, then the user terminal needs to carry out pressing next time The system information needed obtains process；Or

17. a kind of user terminal characterized by comprising

Sending module, for sending request message to network side equipment, the request message is for requesting the user terminal to need The system information wanted, the request message carry system information instruction, and the system information instruction is used to indicate the user The system information that terminal needs is system information current or after change；

First receiving module, for receiving the network side equipment according to system information instruction transmission, on-demand system The system information that user terminal described in information needs, wherein the on-demand system information is the portion of the network side equipment Subsystem information.

18. user terminal as claimed in claim 17, which is characterized in that the user terminal further include:

Second receiving module, the system information change instruction sent for receiving the network side equipment, the system information become More instruction is for notifying the user terminal to change generating system information.

19. user terminal as claimed in claim 18, which is characterized in that described to include: by the change of generating system information

System information is changed when reaching in next modification period；Or

20. user terminal as claimed in claim 17, which is characterized in that if the system information is designated as the first preset value, The system information for then indicating the user terminal needs is the system information after change；

First receiving module is used for before next modification period reaches, and receives the network side equipment according to the system Information of uniting instruction is sent, the system information that user terminal described in the on-demand system information needs after change.

21. user terminal as claimed in claim 17, which is characterized in that if the system information is designated as the second preset value, Then indicate that the system information that the user terminal needs is current system information,

First receiving module is used to receive what the network side equipment was sent according to system information instruction, current institute State the system information of the needs of user terminal described in on-demand system information.

22. the user terminal as described in any one of claim 17-21, which is characterized in that first receiving module is used for The response message that the network side equipment is sent according to system information instruction is received, the response message includes described on-demand System information described in the system information that needs of user terminal, and further include activationary time information, the activationary time letter Breath is used to indicate the system information needed after preset time using the user terminal.

23. the user terminal as described in any one of claim 17-21, which is characterized in that the user terminal, which receives, is The system information that the user terminal after change needs, then the user terminal is after the arrival of next modification period using connecing Receive the system information that the user terminal needs.

24. the user terminal as described in any one of claim 17-21, which is characterized in that if the user terminal is in system The system information that the network side equipment is sent is not received by information response's window, then the user terminal needs to carry out next Secondary on-demand system information obtains process；Or

25. a kind of network side equipment characterized by comprising

Receiving module, for receiving the request message of user terminal transmission, the request message is for requesting the user terminal The system information needed, the request message carry system information instruction, and the system information instruction is used to indicate the use The system information that family terminal needs is system information current or after change；

First sending module sends institute in on-demand system information to the user terminal for indicating according to the system information State the system information of user terminal needs, wherein the on-demand system information is that the part system of the network side equipment is believed Breath.

26. network side equipment as claimed in claim 25, which is characterized in that the network side equipment further include:

Second sending module, for sending system information change instruction, the system information change instruction to the user terminal For notifying the user terminal to change generating system information.

27. network side equipment as claimed in claim 26, which is characterized in that described to include: by the change of generating system information

System information is changed when reaching in next modification period；Or

28. network side equipment as claimed in claim 25, which is characterized in that preset if the system information is designated as first Value then indicates that the system information of the user terminal needs is the system information after change；

First sending module is used for before next modification period reaches, and is indicated according to the system information, Xiang Suoshu The system information that user terminal described in the on-demand system information needs after user terminal transmission change.

29. network side equipment as claimed in claim 25, which is characterized in that preset if the system information is designated as second Value then indicates that the system information that the user terminal needs is current system information,

First sending module is used to be indicated according to the system information, and what Xiang Suoshu user terminal was sent current described presses The system information that user terminal described in the system information needed needs.

30. the network side equipment as described in any one of claim 25-29, which is characterized in that first sending module is used In being indicated to send response message to the user terminal according to the system information, the response message, which includes described, on-demand is The system information that user terminal described in information of uniting needs, and further include activationary time information, the activationary time information is used In the system information that instruction is needed after preset time using the user terminal.

31. the network side equipment as described in any one of claim 25-29, which is characterized in that the user terminal receives It is the system information of the user terminal needs after change, then the user terminal uses after next modification period reaches Receive the system information that the user terminal needs.

32. the network side equipment as described in any one of claim 25-29, which is characterized in that if the user terminal is being The system information that the network side equipment is sent is not received by system information response's window, then the user terminal needs carry out down Primary on-demand system information obtains process；Or

33. a kind of system information transmissions system characterized by comprising

User terminal, for sending request message to network side equipment, the request message is for requesting the user terminal to need The system information wanted, the request message carry system information instruction, and the system information instruction is used to indicate the user The system information that terminal needs is system information current or after change；

The network side equipment is also used to be indicated according to the system information to send on-demand system information to the user terminal Described in user terminal need system information, wherein the on-demand system information be the network side equipment part system System information；

The user terminal is also used to receive what the network side equipment was sent according to system information instruction, described on-demand The system information that user terminal described in system information needs.