CN103856923B

CN103856923B - System information transmission, acquisition methods and equipment

Info

Publication number: CN103856923B
Application number: CN201210519716.3A
Authority: CN
Inventors: 吴昱民; 彦楠
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2012-12-06
Filing date: 2012-12-06
Publication date: 2017-08-18
Anticipated expiration: 2032-12-06
Also published as: CN106550417A; CN103856923A

Abstract

The embodiment of the invention discloses a kind of transmission of system information, acquisition methods and equipment, it is related to wireless communication field, the problem of how terminal for solving to be operated in dependent work non standalone cells gets the system information of the non standalone cells.In the present invention, the system information of the non standalone cells required for terminal is sent to terminal by network side by dedicated signaling, or required system information is read by terminal from the system broadcast message of adjacent cell.This programme, which is solved, is operated in the problem of how terminals of non standalone cells gets the system information of the non standalone cells.

Description

System information transmission, acquisition methods and equipment

Technical field

The present invention relates to wireless communication field, more particularly to a kind of transmission of system information, acquisition methods and equipment.Background skill Art

With user terminal（User Equipment, UE）Fast development and user to data service rate and capacity Demand constantly increase, traditional macro base station（Macro evolved NodeB, Macro eNB）Individual layer overlay network is not This situation can be met.Therefore, 3GPP introduces the mode of layering networking to solve the problem：By in hot spot region, family The small overlay environment such as indoor environment, working environment lays the base station of some low-power（Including forms such as Femto/Pico/ relayings）, Obtain the effect of cell splitting so that operator can provide the user more high data rate, more inexpensive business.Layering group Macrocell in the case of net（Macro Cell）Basis is provided to cover, and cell（Small Cell）Extra system capacity is provided.

Long Term Evolution（Long Term Evolution, LTE）System information in system is divided into Master Information Block （MasterInformationBlock, MIB）With multiple system information blocks（SystemInformationBlocks, SIB）, bag Include SIB1 to SIB15）.Table 1 below describes the major function of each system information：

Table 1

In order to ensure uniformity that UE and network are understood system information, the concept in system information modification cycle is introduced, System information contents within the modification cycle can not change, and system information modification can only be from next system information modification week Carve and start at the beginning of phase.I.e. after UE learns system information change, monitored in next start time in modification cycle and new be System information.LTE system supports the advice method of two kinds of system information changes：

First, network side notifies the UE changing system informations of Idle state and connected state using beep-page message, and UE is next The modification cycle begins listening for new system information；

Second, network side carrying system information in the SIB1 of transmission changes label（systemInfoValueTag）Letter Breath, if the system information that UE is read changes label and the difference stored before, then it represents that system information occurs change, it is necessary to weight It is new to read；The term of validity of UE storing system informations is 3 hours, if more than the time, UE needs to re-read system information.

For ETWS information in system information（Included in SIB10-SIB11）And CMAS information（Included in SIB12） Change, it is allowed to UE does not use read access time point specified in system information changing process.There are reception ETWS or CMAS information energy The UE of power has detected whether ETWS or CMAS Notification of Changes information by beep-page message, when monitoring Notification of Changes information immediately Particular content in system information block where reading ETWS and CMAS.

The UE of connected state and Idle state is only read out and updated to the system information that it needs, and unwanted for its System information can be without reading and updating.

Because network side works in dependent（non-standalone）Public information is not sent in cell（Such as system letter Breath）, UE data transfer is used for so as to the resource that takes the public information saved.But for not sending system The cell of information, the UE of Idle state can not be resident, so non-standalone cells and need not support Idle state UE works thereon, and only needs to support the UE of connected state to work thereon.Therefore, non-standalone cells and need not The UE for the being provided only to Idle state system informations used are supplied to the UE of connected state, these are supplied to what the UE of Idle state was used System information includes：SIB3 to SIB8, SIB14.But the other systems information for the UE of connected state can be supplied to use, still Connected state UE is so provided to use.

The UE of connected state works in non-standalone cells mainly following three kinds of modes：

Mode 1：Carrier aggregation mode.In existing carrier aggregation mode, non-standalone cells can conduct Secondary cell（Scell）The UE of connected state is allocated to, so that UE can be operated using the resource of non-standalone cells. And because existing carrier aggregation mode only supports main plot（PCell）With SCell in identical eNB scene, therefore which It is only used for the autonomous working for also there are same eNB controls under non-standalone MPS process（standalone）The field of cell Scape.

Mode 2：Connected state switching mode.The UE of the connected state worked in standalone cells can be by being switched into The mode for entering non-standalone cells is realized and worked in non-standalone cells.

Mode 3：Carry separate mode.In this mode, the UE of connected state part carrying（Radio Bearer, RB） It is split into from Macro Cell on Small Cell, so as to realize that the UE of connected state can be non-standalone's Worked on Small Cell.The operative scenario of which such as Fig. 1 is described.In this scenario, different from existing carrier aggregation side Formula, Macro Cell and Small Cell may belong to different eNB.The UE wireless heterogeneous networks for being used to safeguard UE（RRC） The chain of command signaling bear of the transmitting-receiving of the control signaling of connection（Signalling Radio Bearer, SRB）Mainly in Macro On the Macro Cell of eNB controls, pass through Macro eNB and mobility management entity（Mobility Management Entity, MME）Connection, the user face data of the UE data transmit-receive for UE can be carried（Data Radio Bearer, DRB）It is all or part of to be separated to home base stations（Local eNB）Small Cell on.While Macro eNB Can also have with Local eNB and gateway（Serving Gateway, S-GW）Connection, to realize respective DRB number According to transmission.UE may have SRB on Local eNB（Part RRC control signaling can be sent by Small Cell）, it is also possible to There is no SRB（RRC control signaling by Macro Cell by all being sent）.

UE is defined in current 36.304 agreement and calculates pager meeting（Paging Occasion, PO）Formula, UE PO According to system（Time division duplex（TDD）Or FDD（FDD））, network settings paging density nB values, acquiescence paging cycle DefaultPagingCycle length, UE marks（ID）It is different and different.

In simple terms, it is directed to FDD system, the position such as table 2 below that UE PO is likely to occur in a radio frames, for In TDD system, the position such as table 3 below that UE PO is likely to occur in a radio frames：

FDD:

Ns	PO when i_s=0	PO when i_s=1	PO when i_s=2	PO when i_s=3
					1	9	N/A	N/A	N/A
2	4	9	N/A	N/A
					4	0	4	5	9

Table 2

Ns	PO when i_s=0	PO when i_s=1	PO when i_s=2	PO when i_s=3
					1	0	N/A	N/A	N/A
2	0	5	N/A	N/A
					4	0	1	5	6

Table 3

To sum up, for the UE of the connected state worked in the non-standalone cells of not broadcast system information, the company The system information of its needs can not be obtained, it is necessary to consider how to allow these UE to obtain from non-standalone cells by meeting the UE of state Take and update the system information in non-standalone cells.

The content of the invention

The embodiment of the present invention provides a kind of system information transmission, acquisition methods and equipment, for solving to be operated in non- The problem of how terminal in standalone cells gets the system information of the non-standalone cells.

A kind of system information sending method, this method includes：

Network side determines that the non-standalone required for being operated in the terminal in non-standalone cells is small The system information in area；

The system information is sent to the terminal by network side by dedicated signaling.

A kind of system information acquisition method, this method includes：

The terminal being operated in non-standalone cells receives the terminal institute that network side is sent by dedicated signaling The system information of the non-standalone cells needed；

The terminal preserves the system information.

A kind of system information acquisition method, this method includes：

The terminal being operated in non-standalone cells selects an adjacent cell, and the adjacent cell is that standalone is small Area；

The terminal is set up after down-going synchronous with the adjacent cell, and system is read from the system broadcast message of the adjacent cell System information.

A kind of base station, the base station includes：

Determining unit, the non-required for the terminal being operated in for determination in non-standalone cells The system information of standalone cells；

Transmitting element, for the system information to be sent into the terminal by dedicated signaling.

A kind of terminal, the terminal includes：

Receiving unit, for when this terminal works is in non-standalone cells, reception network side to pass through special The system information of the non-standalone cells required for the terminal that signaling is sent；

Storage unit, for preserving the system information.

A kind of base station, the base station includes：

Receiving unit, terminal ability information or system information for receiving source base station forwarding obtain solicited message, the end It is described in the terminal being operated in non-standalone cells is reported that end ability information or system information, which obtain solicited message, Source base station；The terminal ability information or system information obtain the non-that solicited message indicates to obtain required for the terminal The system information of standalone cells；

Transmitting element, required for determining terminal according to the terminal ability information or system information acquisition solicited message Non-standalone cells system information, and the system information is sent to the source base station.

A kind of terminal, the terminal includes：

Selecting unit, for when this terminal works is in non-standalone cells, selecting an adjacent cell, the neighbour Cell is standalone cells；

Reading unit, for after down-going synchronous is set up with the adjacent cell, from the system broadcast message of the adjacent cell Middle reading system information.

In a kind of scheme provided in an embodiment of the present invention, network side determines the end being operated in non-standalone cells The system information of the non-standalone cells required for end, and required system information is sent by dedicated signaling To terminal so that terminal obtains the system information of non-standalone cells, and non-is operated in so as to solve The problem of how terminal of standalone cells gets the system information of the non-standalone cells.

In another scheme provided in an embodiment of the present invention, the terminal selection one in non-standalone cells is operated in Individual standalone cells are set up after down-going synchronous as adjacent cell with the adjacent cell of selection, from the system broadcasts of the adjacent cell System information is read in message.Because some system informations have these system informations between regional broadcast, adjacent cell basic It is consistent, when the terminal for the connected state for being operated in non-standalone cells needs to obtain in non-standalone cells System information when, the system information of needs can be obtained from the system broadcast message of adjacent cell, is operated in so as to solve The problem of how terminal of non-standalone cells gets the system information of the non-standalone cells.

Brief description of the drawings

Fig. 1 is Macro Cell of the prior art and Small Cell carrying mask work schematic diagram；

Fig. 2 is method flow schematic diagram provided in an embodiment of the present invention；

Fig. 3 is another method schematic flow sheet provided in an embodiment of the present invention；

Fig. 4 is another method flow schematic diagram provided in an embodiment of the present invention；

Fig. 5 a are system information acquisition schematic flow sheet in the embodiment of the present invention one；

Fig. 5 b are system information renewal schematic flow sheet in the embodiment of the present invention one；

Fig. 5 c are system information termination process schematic diagram in the embodiment of the present invention one；

Fig. 6 a are system information acquisition schematic flow sheet in the embodiment of the present invention two；

Fig. 6 b are system information renewal schematic flow sheet in the embodiment of the present invention two；

Fig. 6 c are system information termination process schematic diagram in the embodiment of the present invention two；

Fig. 7 a are system information acquisition schematic flow sheet in the embodiment of the present invention three；

Fig. 7 b are system information renewal schematic flow sheet in the embodiment of the present invention three；

Fig. 7 c are system information termination process schematic diagram in the embodiment of the present invention three；

Fig. 8 a are system information acquisition schematic flow sheet in the embodiment of the present invention five；

Fig. 8 b are system information renewal schematic flow sheet in the embodiment of the present invention five；

Fig. 8 c are system information termination process schematic diagram in the embodiment of the present invention five；

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

Figure 10 is terminal structure schematic diagram provided in an embodiment of the present invention；

Figure 11 is another terminal structure schematic diagram provided in an embodiment of the present invention；

Figure 12 is another architecture of base station schematic diagram provided in an embodiment of the present invention.

Embodiment

In order to solve the terminal being operated in non-standalone cells, how to get the non-standalone small The problem of system information in area, the embodiment of the present invention provides a kind of system information sending method and a kind of system information acquisition side Method.

Referring to Fig. 2, the embodiment of the present invention is directed to the system information sending method that network side is provided, comprised the following steps：

Step 20：Network side determines to be operated in the non-required for the terminal in non-standalone cells The system information of standalone cells；

Step 21：System information required for terminal is sent to terminal by network side by dedicated signaling.

In step 20, network side determines to be operated in the non-required for the terminal in non-standalone cells The system information of standalone cells, a kind of its implementation method can be as follows：

Network side receives the terminal ability information or system letter that the terminal being operated in non-standalone cells is reported Breath obtains solicited message, and acquisition should required for the terminal ability information or system information acquisition solicited message indicate the terminal The system information of non-standalone cells；It is true that network side obtains solicited message according to the terminal ability information or system information Determine the system information of the non-standalone cells required for terminal.

The terminal ability information or system information that terminal is reported are obtained can include in solicited message：Obtained required for the terminal The configured information of the system information of the non-standalone cells taken；Further, it can also include obtaining required for terminal Non-standalone cells the corresponding cell ID of system information.

Terminal can pass through new independent wireless heterogeneous networks（RRC）Signaling reporting terminal capacity information or system information Obtain solicited message；Or, terminal ability information or system information are obtained solicited message and are used as new information unit by terminal （Information Element, IE）Carrying is sent to network side in existing RRC signaling.

The terminal ability information or system information reported by source base station receiving terminal obtains solicited message, and according to the terminal Ability information or system information obtain the system information that solicited message determines the non-standalone cells required for terminal； Accordingly, in step 21, system information is sent to terminal by network side by dedicated signaling, and implementing can be as follows：

If the non-standalone cells belong to source base station, source base station is by the non-required for terminal The system information of standalone cells is sent to terminal by dedicated signaling；

If the non-standalone cells do not belong to source base station, source base station is by terminal ability information or system information Obtain solicited message and be transmitted to the target BS that the non-standalone cells are belonged to, the information is passed by inter-base station interface Pass, and carry the auxiliary informations such as the mark of source base station；Target BS is by the non-standalone cells required for terminal System information is sent to source base station, and source base station passes through the system information of the non-standalone cells required for terminal special Terminal is sent to signaling.

The system information of non-standalone cell of the source base station required for by terminal is sent to by dedicated signaling The system information corresponding cell ID can also be carried during terminal, in dedicated signaling.Source base station can be by new independent The system information of non-standalone cells required for terminal is sent to terminal by RRC signaling, can also be by needed for terminal The system information for the non-standalone cells wanted carries as new IE and is sent to terminal in existing RRC signaling.

Terminal can pass through the corresponding Signaling Radio Bearer of non-standalone cells（SRB）Reporting terminal capacity information Or system information obtains solicited message, wherein the corresponding cell ID of system information required for non-carried terminal, source base station leads to Cross the corresponding SRB of the non-standalone cells and receive terminal ability information or the system information acquisition request that terminal is reported After information, terminal is known it is desirable that the system information of the non-standalone cells, by the non-required for terminal The system information of standalone cells is sent to terminal by the corresponding SRB of the non-standalone cells；

When terminal works are in multiple cells, terminal can also be by other in addition to non-standalone cells The corresponding SRB reporting terminal capacity informations of cell or system information obtain solicited message, the wherein system required for carried terminal The corresponding cell ID of information（That is the mark of the non-standalone cells）, source base station receive carry cell ID end Ability information or system information is held to obtain after solicited message, if the corresponding cell of the cell ID belongs to source base station, source base Stand the system information required for terminal and terminal is sent to by the SRB；If the corresponding cell of the cell ID does not belong to source Base station, then source base station terminal ability information or system information are obtained into solicited message and are transmitted to the target base that the cell is belonged to Stand, the system information required for terminal is sent to source base station by target BS, source base station leads to the system information required for terminal Cross the SRB and be sent to terminal.

If preferably, the non-standalone cells belong to source base station, source base station is in being somebody's turn to do required for terminal After the system information of non-standalone cells is changed, the system information after change is sent to end by dedicated signaling End；

If the non-standalone cells do not belong to source base station, target BS is in the non-required for terminal After the system information of standalone cells is changed, the system information after change is sent to source base station, the information passes through Inter-base station interface is transmitted；System information after change is sent to terminal by source base station by dedicated signaling.

If preferably, the non-standalone cells belong to source base station, source base station is receiving terminal transmission System information, which is obtained, to be terminated after instruction, stops the system of the non-standalone cells required for sending the terminal to terminal Information；

If the non-standalone cells do not belong to source base station, source base station is receiving the system letter of terminal transmission Breath, which is obtained, to be terminated after instruction, and system information acquisition is terminated into instruction is transmitted to target BS, and the information is passed by inter-base station interface Pass, and carry the auxiliary informations such as the mark of source base station；Target BS stops the non-required for sending the terminal to source base station The system information of standalone cells, non-standalone that source base station stops required for sending the terminal to terminal is small The system information in area.

Terminal reporting system acquisition of information, which terminates the mode indicated, can use the following two kinds：

First, display mode；Terminal sends RRC signaling to network side, wherein carrying display information to indicate no longer to need Issue the system information of correlation；

Second, it is hidden to show mode；Terminal to network side transmission content for empty terminal ability information or system information by obtaining Solicited message is taken, to indicate the system information for no longer needing to issue correlation.

The system information that terminal is reported, which obtains to terminate to carry in instruction, needs network side to terminate the system letter issued Cease corresponding cell ID.

The system information that terminal is reported obtains to terminate and indicates to carry in new independent RRC signaling, or will be System acquisition of information terminates to indicate to carry as new IE is sent to network side in existing RRC signaling.

In step 20, network side determines to be operated in the non-required for the terminal in non-standalone cells The system information of standalone cells, its another implementation method is：

Network side is according to the relevant information of the terminal being operated in non-standalone cells（Version such as terminal is believed Breath）, determine the system information of the non-standalone cells required for the terminal.Such as, terminal can be preset The corresponding relation of version and system information, network side determines the version of the terminal corresponding system information required for the terminal The system information of the non-standalone cells.Specific executive agent can be the base belonging to non-standalone cells Stand.

Preferably, network side is after the system information of the non-standalone cells required for terminal is changed, System information after change is sent to terminal by dedicated signaling.Specific executive agent can be non-standalone cells Affiliated base station.

Preferably, network side is after the system information that receiving terminal is sent obtains and terminates instruction, stop sending to the terminal The system information of the non-standalone cells required for the terminal.Specific executive agent can be non-standalone Base station belonging to cell.

Referring to Fig. 3, the embodiment of the present invention is directed to a kind of system information acquisition method that end side is provided, including following step Suddenly：

Step 30：The terminal being operated in non-standalone cells receives network side and passes through being somebody's turn to do that dedicated signaling is sent The system information of the non-standalone cells required for terminal；

Step 31：The terminal preserves the system information received.

Preferably, the non-required for terminal receives the terminal that network side is sent by dedicated signaling Before the system information of standalone cells, terminal can be obtained to network side reporting terminal capacity information or system information please Information is sought, the terminal ability information or system information obtain the non-that solicited message indicates to obtain required for the terminal The system information of standalone cells.

Terminal can obtain solicited message by new independent RRC signaling reporting terminal capacity information or system information； Or, terminal ability information or system information are obtained solicited message and carried as new IE in existing RRC signaling by terminal It is sent to network side.

Terminal can be obtained by the corresponding SRB reporting terminal capacity informations of non-standalone cells or system information Solicited message, wherein the corresponding cell ID of system information required for non-carried terminal, or, in terminal works multiple small When in area, terminal can also pass through the corresponding SRB reporting terminal capacities of other cells in addition to non-standalone cells Information or system information obtain solicited message, the wherein corresponding cell ID of the system information required for carried terminal（I.e. should The mark of non-standalone cells）.

Preferably, the non-required for terminal receives the terminal that network side is sent by dedicated signaling After the system information of standalone cells, terminal receives this required for the terminal after the change of network side transmission The system information of non-standalone cells, and preserve the system information after change.

Preferably, terminal can after solicited message is obtained to network side reporting terminal capacity information or system information, or Person terminates to network side reporting system acquisition of information and indicated, to notify network after the system information that network side is issued is received Side stops sending system information to the terminal.

For the purposes of solving how the terminal being operated in non-standalone cells gets the non- The problem of system information of standalone cells, the embodiment of the present invention provides another system information acquisition method.

Referring to Fig. 4, another system information acquisition method provided in an embodiment of the present invention comprises the following steps：

Step 40：The terminal being operated in non-standalone cells selects an adjacent cell, and the adjacent cell is Standalone cells；

Step 41：Terminal and the adjacent cell of selection are set up after down-going synchronous, are read from the system broadcast message of the adjacent cell Take system information.

Further, in step 41, if the adjacent cell of terminal selection is alien-frequency district with non-standalone cells, Before terminal and the adjacent cell set up down-going synchronous, terminal needs to interrupt the data biography in the non-standalone cells It is defeated, the working frequency points of itself are switched to the frequency where the adjacent cell；Then, terminal and the adjacent cell of selection set up descending same Step, and in measurement interval network side configuration or set in advance, system is read from the system broadcast message of the adjacent cell Information.

Specifically, terminal reads system information from the system broadcast message of the adjacent cell of selection, implementing can be as Under：

Terminal reads the MIB and SIB1 of the adjacent cell information from the system broadcast message of the adjacent cell；

Terminal obtains the schedule information of the system information of itself needs from SIB1, and obtains the neighbour according to the schedule information The corresponding system information of Cell Broadcast CB.

Read first in terminal after required system information, the scheduling of system information that subsequently can be according to their needs The corresponding system information of reading of property information cycle or call signaling indicate system information change when go again reading System information is taken, is implemented as follows：

First, terminal sets up down-going synchronous with the adjacent cell；

Then, terminal determines the pager meeting of the adjacent cell（PO）Position, the PO position instructions network side is sent out in adjacent cell Send the time of call signaling；

Then, terminal detects the pager wireless net network temporary mark of itself in the PO positions（P-RNTI）；

Finally, terminal reads the call signaling transmitted on the PO positions when detecting the P-RNTI, and determines the paging Whether the change instruction of carrying system information is notified in signaling, if so, then notifying that the acquisition adjacent cell is wide according to the change instruction System information after the change broadcast.

With reference to specific embodiment, the present invention will be described：

Embodiment one：

In the present embodiment, UE has corresponding SRB in non-standalone cells.

As shown in Figure 5 a, the flow that system information is obtained is as follows：

Step 1：The UE of the connected state worked in non-standalone cells, for by carrier aggregation mode, cut Change the part SRB separate modes of mode and carrying separation（A part of SRB is in Macro Cell, and a part of SRB is in Small Cell）, the UE of connected state has corresponding SRB in non-standalone cells.For UE, if UE needs to obtain certain System information in individual non-standalone cells, such as UE needs to obtain SIB15 content, then UE is in non- On the corresponding SRB of standalone cells RRC signaling is sent to network side（As carried in terminal ability information （UECapabilityInformation）In）, to indicate its ability information or system information acquisition request to SIB15, to obtain Get SIB15 content.

Step 2：The corresponding eNB of non-standalone cells receive from UE to SIB15 ability information or be After information acquisition request of uniting, determine that UE needs to obtain the SIB15 information in non-standalone cells.If the non- Standalone cells also support SIB15 correlation functions, then eNB leads to the corresponding SIB15 information of non-standalone cells Cross dedicated signaling（Reconfigured as carried in RRC connections（RRCConnectionReconfiguration）In）It is sent to the UE.

As shown in Figure 5 b, the flow that system information updates is as follows：

Step 3：When the SIB15 information change in non-standalone cells, eNB is sent according to terminal in step 1 Instruction the SIB15 information after the change in non-standalone cells is passed through into dedicated signaling（As carried In RRCConnectionReconfiguration）It is sent to the UE.

As shown in Figure 5 c, the flow that system information acquisition is terminated is as follows：

Step 4：Any times of the UE after step 1, or receive after SIB15 information, if no longer needing to receive or more The information content of SIB15 in new non-standalone cells, UE can be on the corresponding SRB of non-standalone cells Send RRC signaling（As carried in UECapabilityInformation）, to notify network side to terminate non-standalone The SIB15's of cell issues and updates, the termination indicate can be：The configured information of display（Indicated as 1bit is shown）, or it is hidden The configured information shown（Ability information if do not sent or sending sky）.ENB from UE receive the SIB15 obtain terminate indicate after, Terminate the SIB15 information sent to the UE in non-standalone cells.

Explanation：Retouched in acquisition, renewal and acquisition termination mode and the embodiment for other UE system informations needed The process stated is similar.Likewise, the ability that UE is reported（Or system information request）Information or system information are obtained to terminate and indicated It is that can send or carry in new independent RRC signaling in other existing rrc messages to be sent to UE as new IE. Because process is similar, no longer describe one by one herein.

Embodiment two：

In the present embodiment, UE does not have corresponding SRB in non-standalone cells.

As shown in Figure 6 a, the flow that system information is obtained is as follows：

Step 1：The UE of the connected state worked in non-standalone cells, under carrying separate mode, connected state UE there is no corresponding SRB in non-standalone cells, or by way of carrier aggregation or carrying separation side Formula, there is corresponding SRB in non-standalone cells, but UE is not in the required corresponding cell of system information System information is sent on SRB and obtains request.Such as, UE needs to receive the Home eNodeB title letter in non-standalone cells Breath（SIB9）, UE can send RRC signaling on the SRB of macrocell（As carried in UECapabilityInformation）, To indicate its ability information or system information acquisition request to SIB9, to get SIB9 content.Carried in RRC signaling The corresponding cell IDs of SIB9, are to obtain the SIB9 information of which cell for specifying.

Step 2：The ability information or system information to SIB9 that eNB receives UE transmissions are obtained after request, according to carrying Cell ID determine there is respective cell on the eNB（That is non-standalone cells）SIB9 information after, by the cell SIB9 information and the cell ID pass through dedicated signaling（As carried in RRCConnectionReconfiguration）Send Give the UE.

As shown in Figure 6 b, the flow that system information updates is as follows：

Step 3：When the SIB9 information change in non-standalone cells, eNB is sent according to terminal in step 1 Indicate and cell ID passes through the SIB9 information after the change in specified non-standalone cells and the cell ID Dedicated signaling（As carried in RRCConnectionReconfiguration）It is sent to the UE.

As fig. 6 c, the flow that system information acquisition is terminated is as follows：

Step 4：Any times of the UE after step 1, or receive after SIB9 information, if no longer needing to receive or update SIB9 information in non-standalone cells, UE can send RRC signaling on the SRB of macrocell（As carried In UECapabilityInformation）, to notify network side to terminate issuing and more for the SIB9 of non-standalone cells Newly.ENB, according to the corresponding cell IDs of the SIB9, is terminated and sent to the UE after SIB9 acquisition termination instructions are received from UE SIB9 information in non-standalone cells.

The mode that UE SI reportings B9 obtains termination instruction includes：

Display mode.UE passes through display information in RRC signaling（Such as 1bit）Instruction no longer needs SIB9 information；

It is hidden to show mode.UE can be in ability information（Or system information obtains request）The middle information for sending sky does not send phase Close ability information（Or system information obtains request）, to indicate that it no longer needs SIB9 information.

The SIB9 that UE is reported, which obtains to terminate in instruction, also carries the corresponding cell IDs of SIB9.

Explanation：Retouched in acquisition, renewal and acquisition termination mode and the embodiment for other UE system informations needed The process stated is similar.Likewise, the ability that UE is reported（Or system information obtains request）Information or system information obtain termination and referred to Show to be also that can send or carry in new independent RRC signaling in other existing rrc messages as new IE transmissions To UE.Because process is similar, no longer describe one by one herein.

Embodiment three：

In the present embodiment, eNB active sending system information；

As shown in Figure 7a, the flow that system information is obtained is as follows：

Step 1：ENB, can by the corresponding UE of non-standalone according to the non-standalone cells for being allocated to UE The system information that can be needed（Such as SIB15）, UE is directly handed down to by dedicated signaling.For in non-standalone cells There is SRB UE, the system information in the cell directly can be sent by the SRB in non-standalone cells, so as to No longer to need specially to indicate which cell corresponding to the system information issued be.For in non-standalone cells The upper UE without SRB, eNB send the system information in the non-standalone cells, it is necessary to by carrying in existing SRB Cell ID indicates which cell corresponding to the system information issued be.

As shown in Figure 7b, the flow that system information updates is as follows：

Step 2：When the SIB15 information change in non-standalone cells, eNB remembers according to the transmission in step 1 Record is by the SIB15 information after the change in non-standalone cells by dedicated signaling (as carried In RRCConnectionReconfiguration）It is sent to the UE.

As shown in Figure 7 c, the flow that system information acquisition is terminated is as follows：

Step 3：UE is after system information is received, if no longer needing to receive or update the SIB15 information content, for UE has SRB situation in non-standalone cells, and UE can be sent on the corresponding SRB of non-standalone cells RRC signaling（As carried in UECapabilityInformation）, to notify network side to terminate non-standalone cells SIB15 issue and update, the termination indicate can be：The configured information of display（Indicated as 1bit is shown）, or hidden show Configured information（Ability information if do not sent or sending sky）.ENB is terminated after SIB15 acquisition termination instructions are received from UE The SIB15 information in non-standalone cells is sent to the UE.There is no SRB in non-standalone cells for UE Situation, UE can send on the SRB that uses of SIB15 information in base station and send RRC signaling（As carried In UECapabilityInformation）, with notify network side terminate non-standalone cells SIB15 issue and Update.ENB, according to the corresponding cell IDs of the SIB15, is terminated to the UE after SIB15 acquisition termination instructions are received from UE Send the SIB15 information in non-standalone cells.

The mode that UE SI reportings B15 obtains termination instruction includes：

Display mode.UE is reported in rrc message by display information（Such as 1bit）Instruction no longer needs SIB15 information；

The SIB15 that UE is reported, which obtains to terminate in instruction, also carries the corresponding cell IDs of the SIB15.

Example IV：

In the present embodiment, after the ETWS/CMAS that UE is read in the call signaling that adjacent cell is sent is indicated, corresponding system is obtained System information；

The UE of the connected state worked in non-standalone cells, because network side is in non-standalone cells On do not send system broadcast information and call signaling, it is impossible to pass through BCCH in non-standalone cells（BCCH） Or Paging Control Channel（PCCH）The system information updated is obtained to indicate.

, can be by reading adjacent cell for these public system informations of the ETWS or CMAS of big regional broadcast BCCH and/or PCCH mode is obtained, specific as follows：

Step 1：UE sets up down-going synchronous with adjacent cell；

UE can complete mobility measurements with frequency/alien-frequency district signal strength/quality by measurement and assess, and report net Network side carries out handover between cells.For co-frequency neighbor cell, as long as UE is directed to measuring frequently, UE with the adjacent cell on frequency just In synchronous regime；UE for meeting different-frequency measure condition, the time rule of measurement alien frequencies is set as having in every 40/80ms 6ms is used as different-frequency measure gap（gap）.For the measurement of alien-frequency district, first have to read the synchronizing signal of cell, and it is small with this Area sets up down-going synchronous；

Step 2：UE knows the pager meeting of adjacent cell（PO）Position；

UE and cell are set up after down-going synchronous, can be with：

Call signaling directly is monitored in most possible PO positions, for FDD（FDD）The PO positions are each nothing The subframe 0,4,5,9 of line frame, for time division duplex（TDD）The PO positions are the subframe 0,1,5,6 of each radio frames；

Refinement, UE can read the system information SIB2 of the adjacent cell, obtain acquiescence paging cycle DefaultPagingCycle, paging density value nB（Value is 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, wherein T= defaultPagingCycle）, and the most possible radio frames and subframe for sending call signaling are judged according to Cell System Frame Number, And carry out P-RNTI detection.Such as：

NB is less than T situation, pager meeting can occurs in not each radio frames, then UE according to paging density according to seeking Formula is exhaled to determine the wireless frame position that PO occurs, and in the subframe 0 of these radio frames（Only for TDD）/ subframe 9（Only for FDD）Upper progress P-RNTI detection；

NB, which is equal in T situation, each radio frames, pager meeting can occurs, and only in subframe 0（Only for TDD）/ Subframe 9（Only for FDD）Position, UE can each radio frames subframe 0（Only for TDD）/ subframe 9（Only for FDD） Detect P-RNTI；

NB is more than T situation, and each radio frames occur（nB/T）Individual PO positions, UE can be pressed in each radio frames P-RNTI is detected according to paging subframe position as defined in agreement.

In existing protocol, for ETWS and CMAS information, it is desirable at least received in each defaultPagingCycle Once, defaultPagingCycle minimum value is 320ms.The above method, which is fully able to meet ETWS and CMAS minimums, to be connect Receive and require.

Step 3：UE detects P-RNTI in corresponding PO positions；

Step 4：Corresponding call signaling is read when UE detects P-RNTI, and parses wherein whether carry system letter The change instruction of breath is notified.Indicate to notify possible as follows：

etws-Indication ENUMERATED{true}

OPTIONAL,--Need ON

cmas-Indication-r9 ENUMERATED{true}

OPTIONAL,--Need ON

Wherein ETWS change instruction corresponds to SIB10 and SIB11, CMAS change instruction correspond to SIB12.

Only when UE, which detects change instruction, to be notified, just go in adjacent cell be corresponding to further decoding change instruction System information.Decoding system information needs to read the time domain deployment position of each system information in SIB1 first, then in corresponding window Middle reception broadcast channel content, and solve actual system information contents.

Embodiment five：

In the present embodiment, the system information of the non-standalone cells under UE acquisition non-serving eNB；

As shown in Figure 8 a, the flow that system information is obtained is as follows：

Step 1：The UE of the connected state worked in non-standalone cells, under carrying separate mode, connected state UE there is no corresponding SRB in non-standalone cells, or by way of carrier aggregation or carrying separation side Formula, there is corresponding SRB in non-standalone cells, but UE is sent out not on the SRB of the corresponding cell of system information System information is sent to obtain request.Such as, UE needs to receive the system information in non-standalone cells（Such as SIB15）, UE RRC signaling can be sent on the SRB of macrocell（As carried in UECapabilityInformation）, to indicate that its is right SIB15 ability information or system information obtains request, to get SIB15 content.SIB15 correspondences are carried in RRC signaling Cell ID, for specify be to obtain the SIB15 information of which cell.

Step 2：Receive and SIB15 is corresponding small to be found to the source eNB that SIB15 ability information or system information obtain request Area is that under a target eNB, then the ability information or system information are obtained request and be transmitted to by inter-base station interface by source eNB Target eNB.

Step 3：Target eNB receives the ability information or system information to SIB15 forwarded from source eNB and obtains request Afterwards, the SIB15 information in non-standalone cells is sent to by source eNB by inter-base station interface according to cell ID, and Carry the auxiliary informations such as the cell ID.

Step 4：Source eNB is received after the SIB15 information from target eNB, the SIB15 information and cell ID is passed through special Use signaling（As carried in RRCConnectionReconfiguration）It is sent to the UE.

As shown in Figure 8 b, the flow that system information updates is as follows：

Step 5：After the target eNB that SIB15 information is sent to source eNB has found SIB15 information change, target eNB will System information after change is sent to source eNB by inter-base station interface, wherein cell ID and SIB15 more new logo etc. can be carried Information.

Step 6：SIB15 information after the change from target eNB that source eNB is received, according to being received in step 1 from UE Instruction and cell ID the SIB15 information and cell ID after change are passed through into dedicated signaling（As carried In RRCConnectionReconfiguration）It is sent to the UE.

As shown in Figure 8 c, the flow that system information acquisition is terminated is as follows：

Step 7：Any times of the UE after step 1, or receive after SIB15, if no longer needing to receive or update SIB15 information in non-standalone cells, UE can send RRC signaling on the SRB of macrocell（As carried In UECapabilityInformation）, with notify network side terminate non-standalone cells SIB159 issue and Update.

The mode that UE SI reportings B15 obtains termination instruction includes：

Display mode.UE passes through display information in RRC signaling（Such as 1bit）Instruction no longer needs SIB15 information；

It is hidden to show mode.UE can be in ability information（Or system information obtains request）The middle information for sending sky does not send phase Close ability information（Or system information obtains request）, to indicate that it no longer needs SIB15 information.

The SIB15 that UE is reported, which obtains to terminate in instruction, also carries the corresponding cell IDs of SIB15.

Step 8：Source eNB from UE after SIB15 acquisition termination instructions are received, if finding, the termination indicates to correspond to mesh The SIB15 of the cell on eNB is marked, then source eNB to target eNB without other UE under it after it is determined that ask SIB15 information, by this SIB15 obtains termination instruction and is transmitted to target eNB.Target eNB is indicated according to the termination received, is terminated to source eNB and is sent non- SIB15 information in standalone cells.

Explanation：Retouched in acquisition, renewal and acquisition termination mode and the embodiment for other UE system informations needed The process stated is similar.Likewise, the ability that UE is reported（Or system information obtains request）Information or system information obtain termination and referred to Show to be also that can send or carry in new independent RRC signaling in other existing rrc messages as new IE transmissions To UE.Because process is similar, no longer describe one by one herein.The same home base stations for being controlled by macro base station, home base stations The system information and system information that can be actively managed, which update, is sent to macro base station, and process is with step 3 and step 5.

Referring to Fig. 9, the embodiment of the present invention provides a kind of base station, and the base station includes：

Determining unit 90, the non-required for the terminal being operated in for determination in non-standalone cells The system information of standalone cells；

Transmitting element 91, the terminal is sent to by the system information by dedicated signaling.

Further, the base station also includes：

Receiving unit 92, for receiving the terminal ability information that the terminal being operated in non-standalone cells is reported Or system information obtains solicited message, the terminal ability information or system information obtain solicited message and indicate to obtain required for the terminal The system information of the non-standalone cells taken；

The determining unit 90 is used for：

The non-required for solicited message determines terminal is obtained according to the terminal ability information or system information The system information of standalone cells.

Further, the transmitting element 91 is used for：

If the non-standalone cells belong to this base station, by the non-required for the terminal The system information of standalone cells is sent to the terminal by dedicated signaling；

If the non-standalone cells do not belong to this base station, by the terminal ability information or system information Obtain solicited message and be transmitted to the target BS that the non-standalone cells are belonged to；The target BS is received to send The terminal required for the non-standalone cells system information, and the system information is sent out by dedicated signaling Give the terminal.

Further, the transmitting element 91 is additionally operable to：

If the non-standalone cells belong to this base station, in the non-required for the terminal After the system information of standalone cells is changed, the system information after change is sent to terminal by dedicated signaling；

If the non-standalone cells do not belong to this base station, the change that the target BS is sent is being received After the system information of the non-standalone cells required for the terminal after more, the system information after this is changed is led to Cross dedicated signaling and be sent to the terminal.

Further, the transmitting element 91 is additionally operable to：

If the non-standalone cells belong to this base station, the system information sent to terminal is being received Obtain and terminate after instruction, stop the system letter of the non-standalone cells required for sending the terminal to the terminal Breath；

If the non-standalone cells do not belong to this base station, the system letter that the terminal is sent is being received Breath, which is obtained, to be terminated after instruction, and system information acquisition is terminated into instruction is transmitted to the target BS；And stop to the end The system information of the non-standalone cells required for the end transmission terminal.

Further, the determining unit 90 is used for：

According to the relevant information for the terminal being operated in non-standalone cells, determine required for the terminal should The system information of non-standalone cells.

Further, the transmitting element 91 is additionally operable to：

After the system information of the non-standalone cells required for the terminal is changed, after change System information is sent to terminal by dedicated signaling.

Further, the transmitting element 91 is additionally operable to：

Receive the system information acquisition termination instruction that the terminal is sent；

Stop the system information of the non-standalone cells required for sending the terminal to the terminal.

Referring to Figure 10, the embodiment of the present invention provides a kind of terminal, and the terminal includes：

Receiving unit 100, for when this terminal works is in non-standalone cells, reception network side to pass through special The system information of the non-standalone cells required for the terminal sent with signaling；

Storage unit 101, for preserving the system information.

Further, the terminal also includes：

Reporting unit 102, for the non-required for the terminal that network side is sent by dedicated signaling is received Before the system information of standalone cells, solicited message is obtained to network side reporting terminal capacity information or system information, The terminal ability information or system information obtain solicited message and indicate that the non-standalone obtained required for the terminal is small The system information in area.

Further, the receiving unit 100 is additionally operable to：

The non-standalone cells required for the terminal that is sent by dedicated signaling of network side is received are After information of uniting, the system letter of the non-standalone cells required for the terminal after the change that reception network side is sent Breath；

The storage unit 101 is additionally operable to：Preserve the system information after change.

Further, the terminal also includes：

Indicating member 103, obtains termination instruction, to notify network side to stop to this for sending system information to network side Terminal sends system information.

Referring to Figure 11, the embodiment of the present invention provides a kind of terminal, and the terminal includes：

Selecting unit 110, for when this terminal works is in non-standalone cells, selecting an adjacent cell, The adjacent cell is standalone cells；

Reading unit 111, for after down-going synchronous is set up with the adjacent cell, disappearing from the system broadcasts of the adjacent cell System information is read in breath.

Further, the terminal also includes：

Switch unit 112, for when the adjacent cell and the non-standalone cells are alien-frequency district, with The adjacent cell is set up before down-going synchronous, the data transfer in the non-standalone cells is interrupted, by the work of terminal Make the frequency where frequency handover to the adjacent cell；

The reading unit 111 is used for：

In measurement interval network side configuration or set in advance, read from the system broadcast message of the adjacent cell The system information of the adjacent cell.

Further, the reading unit 111 is used for：

The Master Information Block MIB and system information block SIB1 of the adjacent cell are read from the system broadcast message of the adjacent cell Information；

The schedule information of the system information of itself needs is obtained from SIB1, and the adjacent cell is obtained according to the schedule information The corresponding system information of broadcast.

Further, the terminal also includes：

Updating block 113, for believing in the system that the adjacent cell is read from the system broadcast message of the adjacent cell After breath, down-going synchronous is set up with the adjacent cell；

Determine the pager meeting of the adjacent cell（PO）Position, the PO position instructions network side sends in the adjacent cell and sought Exhale the time of signaling；

The pager wireless net network temporary mark P-RNTI of itself is detected in the PO positions；

The call signaling transmitted on the PO positions is read when detecting the P-RNTI, and is determined in the call signaling Whether the change instruction of carrying system information is notified, if so, then being notified to obtain the change that the adjacent cell is broadcasted according to the change instruction System information after more.

Referring to Figure 12, the embodiment of the present invention also provides a kind of base station, and the base station includes：

Receiving unit 120, terminal ability information or system information for receiving source base station forwarding obtain solicited message, should It is that the terminal being operated in non-standalone cells reports institute that terminal ability information or system information, which obtain solicited message, State source base station；The terminal ability information or system information obtain the non-that solicited message indicates to obtain required for the terminal The system information of standalone cells；

Transmitting element 121, terminal institute is determined for obtaining solicited message according to the terminal ability information or system information The system information of the non-standalone cells needed, and the system information is sent to the source base station.

Further, the transmitting element 121 is additionally operable to：

After the system information of the non-standalone cells required for the terminal is changed, will be after change System information is sent to other described base stations.

Further, the receiving unit 120 is additionally operable to：

The system information acquisition termination instruction that the source base station is sent is received, it is described that the system information, which obtains and terminates instruction, Terminal reports source base station；

The transmitting element 121 is additionally operable to：

Stop the system information of the non-standalone cells required for sending the terminal to the source base station.

To sum up, beneficial effects of the present invention include：

In another scheme provided in an embodiment of the present invention, the terminal selection one in non-standalone cells is operated in Individual standalone cells are set up after down-going synchronous as adjacent cell with the adjacent cell of selection, from the system broadcasts of the adjacent cell System information is read in message.Because some system informations have regional broadcast（Such as from SIB10 to SIB12 and SIB15）, These system informations are substantially coincident between adjacent cell, when the terminal for the connected state for being operated in non-standalone cells is needed When obtaining the system information in non-standalone cells, it can obtain what is needed from the system broadcast message of adjacent cell System information, is operated in the terminals of non-standalone cells how to get the non-standalone small so as to solve The problem of system information in area.

The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.

, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent Select embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims

1. a kind of system information sending method, it is characterised in that this method includes：

Network side determination is operated in the non-required for the terminal in the non-standalone cells of dependent work The system information of standalone cells, including：

The terminal ability information or system information that the terminal that network side reception is operated in non-standalone cells is reported are obtained Solicited message is taken, the terminal ability information or system information obtain the non-that solicited message indicates to obtain required for the terminal The system information of standalone cells；Network side obtains solicited message according to the terminal ability information or system information and determined The system information of the non-standalone cells required for terminal；Or

Network side according to the relevant information of the terminal being operated in non-standalone cells, determine required for the terminal should The system information of non-standalone cells；

2. the method as described in claim 1, it is characterised in that the terminal ability information or system information are received by source base station Solicited message is obtained, and being somebody's turn to do required for solicited message determines terminal is obtained according to the terminal ability information or system information The system information of non-standalone cells；

The system information is sent to the terminal by the network side by dedicated signaling, is specifically included：

If the non-standalone cells belong to the source base station, the source base station by required for the terminal should The system information of non-standalone cells is sent to the terminal by dedicated signaling；

If the non-standalone cells do not belong to the source base station, the source base station is by the terminal ability information Or system information obtains solicited message and is transmitted to the target BS that the non-standalone cells are belonged to；The target base Stand and the system information of the non-standalone cells required for the terminal is sent to the source base station, the source base station The system information of the non-standalone cells required for the terminal is sent to the terminal by dedicated signaling.

3. method as claimed in claim 2, it is characterised in that further comprise：

If the non-standalone cells belong to the source base station, the source base station is in being somebody's turn to do required for the terminal After the system information of non-standalone cells is changed, the system information after change is sent to end by dedicated signaling End；

If the non-standalone cells do not belong to the source base station, the target BS is required for the terminal The non-standalone cells system information change after, the system information after change is sent to the source base Stand, the system information after change is sent to the terminal by the source base station by dedicated signaling.

4. method as claimed in claim 2, it is characterised in that further comprise：

If the non-standalone cells belong to the source base station, the source base station is receiving the terminal transmission System information obtain and terminate and indicate after, the non-standalone stopped required for sending the terminal to the terminal is small The system information in area；

If the non-standalone cells do not belong to the source base station, the source base station is receiving the terminal hair The system information sent, which is obtained, to be terminated after instruction, and the system information is obtained into termination instruction is transmitted to the target BS；It is described Target BS stops the system information of the non-standalone cells required for sending the terminal to the source base station, institute State the system information that source base station stops the non-standalone cells required for sending the terminal to the terminal.

5. the method as described in claim 1, it is characterised in that further comprise：

Network side is after the system information of the non-standalone cells required for the terminal is changed, after change System information terminal is sent to by dedicated signaling.

6. the method as described in claim 1, it is characterised in that further comprise：

Network side receives the system information acquisition termination instruction that the terminal is sent；

Network side stops the system information of the non-standalone cells required for sending the terminal to the terminal.

7. a kind of system information acquisition method, it is characterised in that this method includes：

Terminal obtains solicited message, the terminal ability information or system letter to network side reporting terminal capacity information or system information Breath obtains the system information that solicited message indicates the non-standalone cells of the dependent work obtained required for the terminal；

The terminal that is operated in non-standalone cells is received required for the terminal that network side is sent by dedicated signaling The non-standalone cells system information；

The terminal preserves the system information.

8. method as claimed in claim 7, it is characterised in that receive what network side was sent by dedicated signaling in the terminal After the system information of the non-standalone cells required for the terminal, further comprise：

The system of the non-standalone cells required for the terminal after the change that the terminal reception network side is sent Information, and preserve the system information after change.

9. method as claimed in claim 7, it is characterised in that further comprise：

The terminal sends system information to network side and obtains termination instruction, to notify network side to stop sending system to the terminal Information.

10. a kind of base station, it is characterised in that the base station includes：

Receiving unit, for receiving the terminal energy that the terminal being operated in the non-standalone cells of dependent work is reported Force information or system information obtain solicited message, and the terminal ability information or system information obtain solicited message and indicate the terminal institute Need the system information of the non-standalone cells obtained；

Determining unit, determines to be operated in non-for obtaining solicited message according to the terminal ability information or system information The system information of the non-standalone cells required for terminal in standalone cells；

11. base station as claimed in claim 10, it is characterised in that the transmitting element is used for：

If the non-standalone cells belong to this base station, by the non-standalone required for the terminal The system information of cell is sent to the terminal by dedicated signaling；

If the non-standalone cells do not belong to this base station, the terminal ability information or system information are obtained Solicited message is transmitted to the target BS that the non-standalone cells are belonged to；Receive the institute that the target BS is sent The system information of the non-standalone cells required for terminal is stated, and the system information is sent to by dedicated signaling The terminal.

12. base station as claimed in claim 11, it is characterised in that the transmitting element is additionally operable to：

If the non-standalone cells belong to this base station, in the non-standalone required for the terminal After the system information of cell is changed, the system information after change is sent to terminal by dedicated signaling；

If the non-standalone cells do not belong to this base station, after the change that the target BS is sent is received The terminal required for the non-standalone cells system information after, the system information after this is changed passes through special The terminal is sent to signaling.

13. base station as claimed in claim 11, it is characterised in that the transmitting element is additionally operable to：

If the non-standalone cells belong to this base station, the system information acquisition that the terminal is sent is being received Terminate after indicating, stop the system information of the non-standalone cells required for sending the terminal to the terminal；

If the non-standalone cells do not belong to this base station, obtained in the system information for receiving the terminal transmission Take after termination instruction, the system information is obtained into termination instruction is transmitted to the target BS；And stop sending out to the terminal Send the system information of the non-standalone cells required for the terminal.

14. base station as claimed in claim 10, it is characterised in that the determining unit is used for：

According to the relevant information for the terminal being operated in non-standalone cells, the non-required for the terminal is determined The system information of standalone cells.

15. base station as claimed in claim 14, it is characterised in that the transmitting element is additionally operable to：

After the system information of the non-standalone cells required for the terminal is changed, by the system after change Information is sent to terminal by dedicated signaling.

16. base station as claimed in claim 14, it is characterised in that the transmitting element is additionally operable to：

17. a kind of base station, it is characterised in that the base station includes：

Receiving unit, terminal ability information or system information for receiving source base station forwarding obtain solicited message, the terminal energy It is in the terminal being operated in the non-standalone cells of dependent work that force information or system information, which obtain solicited message, Offer the source base station；The terminal ability information or system information obtain being somebody's turn to do for acquisition required for solicited message indicates the terminal The system information of non-standalone cells；

Transmitting element, required for determining terminal according to the terminal ability information or system information acquisition solicited message The system information of non-standalone cells, and the system information is sent to the source base station.

18. base station as claimed in claim 17, it is characterised in that the transmitting element is additionally operable to：

After the system information of the non-standalone cells required for the terminal is changed, the system after change is believed Breath is sent to other base stations.

19. base station as claimed in claim 17, it is characterised in that the receiving unit is additionally operable to：

The system information acquisition termination instruction that the source base station is sent is received, it is the terminal that the system information, which obtains and terminates instruction, Report source base station；

The transmitting element is additionally operable to：

20. a kind of terminal, it is characterised in that the terminal includes：

Reporting unit, the non-for the dependent work required for the terminal that network side is sent by dedicated signaling is received Before the system information of standalone cells, solicited message is obtained to network side reporting terminal capacity information or system information, The terminal ability information or system information obtain solicited message and indicate that the non-standalone obtained required for the terminal is small The system information in area；

Receiving unit, dedicated signaling is passed through for when this terminal works is in non-standalone cells, receiving network side The system information of the non-standalone cells required for the terminal sent；

Storage unit, for preserving the system information.

21. terminal as claimed in claim 20, it is characterised in that the receiving unit is additionally operable to：

The system letter of the non-standalone cells required for the terminal that network side is sent by dedicated signaling is received After breath, the system information of the non-standalone cells required for the terminal after the change that reception network side is sent；

The storage unit is additionally operable to：Preserve the system information after change.

22. terminal as claimed in claim 20, it is characterised in that the terminal also includes：

Indicating member, termination instruction is obtained for sending system information to network side, to notify network side to stop sending out to the terminal Send system information.