Summary of the invention
Be to realize the reception rapidly and efficiently of system information, in time carry out system information and handle, and feed back according to result and to receive and to handle follow-up system information that the present invention proposes SIM system information management method and apparatus in a kind of LTE system.
According to an aspect of the present invention, provide the SIM system information management device in a kind of LTE system, comprising: the SIM system information management controller, system information receives controller, system information processor, data management system, timer manager, message constructing and resolver, information receiving and transmitting device;
Wherein, described information receiving and transmitting device is used to receive the system message as the radio resource protocol Data Unit; Described message constructing and resolver are used for stipulating to resolve the system information that described information receiving and transmitting device receives according to agreement, offer the SIM system information management controller; Described SIM system information management controller is used for triggering described system information and receives controller when described LTE starting terminal, described data management system and timer manager are carried out initialization, the system information after resolving is offered described system information processor; Described timer manager is used for coming management system message pick-up controller and data management system according to subframe situation and system message are overtime; Described data management system is used for preservation, modification and the deletion of management system information and the content and the state of common control information; Described system information receives frame number and the subframe numbers that controller is used to obtain current system, receives judgement, the control physical layer according to the schedule information of system information.Realization is to the monitoring of the transmission channel of system information with to the reception of system information; Described system information processor is used for carrying out respective handling according to the system message type to receiving different system informations, by data management system result is fed back to system information and receives controller.
Wherein, described timer manager comprises system-frame time controller and timeout clock manager; The system-frame time controller is used for the operation of control system message pick-up controller, sends semaphore reporting system message pick-up controller when each subframe arrives; The timeout clock manager is used to manage the timeout clock of each system information, after the timeout clock of system message is overtime, revises the data of preserving in the data management system.
Wherein, described data management system comprises system information manager, scheduling system information information manager and system information common control information manager; Wherein, the system information manager is used to realize preservation, change and the deletion to system information; The scheduling system information information manager is used to realize to system information receiving scheduling information and whether receives the management of successful information; System information common control information manager is used for realizing preservation and the change to the various common control informations of system information processing procedure.
According to another aspect of the present invention, provide the method for the SIM system information management in a kind of wide-band mobile communication, comprising:
Step 10), system information receive the semaphore of controller according to each descending sub frame, carry out to receive control;
Step 20), receive and resolution system information, from the system message of resolving, obtain the content and the type of system information;
Step 30), according to the type of system information, system information is started corresponding the processing.
Wherein, step 10) comprises:
Step 110), obtain the semaphore that sends when each subframe arrives after, obtain the frame number and the subframe numbers of system from lower floor;
Step 120), determine that according to the frame number of current system information and subframe numbers and schedule information present frame has the system information needs to receive;
Step 130), the receiving control information of tectonic system information, and send it to lower floor and receive.
Wherein, step 30) comprising:
During the system information block 1 that step 310), is defined as receiving first, preserve new system information block 1 message that receives, 1 holding time of open system block of information timer, corresponding information is submitted to high level, generate other system message pick-up task chained list, it is true that system information type piece 1 is received successful mark position.
By SIM system information management apparatus and method of the present invention, for the radio resource control layer SIM system information management in the LTE agreement provides a kind of concrete implementation.By the co-operation between each device in the system, realized the SIM system information management function, for the correct operation efficiently of LTE system terminal equipment provides necessary assurance.
Embodiment
In order to make technical scheme of the present invention and advantage clearer,, the SIM system information management apparatus and method in a kind of LTE of the present invention system are elaborated below in conjunction with drawings and Examples.
In the LTE system, system information sends to user terminal by the base station end by broadcast mode, is the essential information of terminal connecting system.The system information of being broadcasted comprises the parameter information of some system levels relevant with network portion and whole communication system: as Non-Access Stratum (NAS, NonAccess Stratum) general information, be applied to information (selecting parameter), the neighboring BS information of subscriber equipment notconnect state and be used for the information (as the common channel configuration information) that wireless user terminal equipment is in Radio Resource control connection state, seismic sea wave warning message etc. as sub-district (weight).
Fig. 1 illustrates the structured flowchart according to the SIM system information management device of the embodiment of the invention, and for SIM system information management itself, the SIM system information management device only need be realized the reception to message, resolves reprocessing, does not need to relate to the structure and the transmission of message.As shown in Figure 1, this SIM system information management device comprises the SIM system information management controller, and system information receives controller, system information processor, data management system, timer manager, message constructing and resolver, information receiving and transmitting device.
The information receiving and transmitting device is used for system message is received as the radio resource protocol Data Unit, system information comprises following 1-11 type, wherein, the information receiving and transmitting device comprises radio resource protocol Data Unit sending module and radio resource protocol Data Unit receiver module.
Be used to the achieve a butt joint parsing of the system information received of message constructing and resolver, regulation according to agreement, read the system information block that the information receiving and transmitting device sends, the information difference that different system information blocks comprises offers described system information processor and handles.
The SIM system information management controller is the control centre of whole system apparatus for management of information, realization receives the triggering of controller when the whole LTE starting terminal to system information, described data management system is carried out initialization, described timer manager is carried out initialization.For data management system, this initialization is used to realize foundation and the initial assignment to chained list, global variable; For timer manager, this initialization is used to set up timer.
Timer manager is a SIM system information management time control centre, comprise system-frame time controller and timeout clock manager, wherein, the system-frame time controller is used for the operation of control system message pick-up controller, when each subframe arrives, send semaphore reporting system message pick-up controller, start follow-up system information and receive judgement; The timeout clock manager is used to manage the timeout clock of each system information, after the timeout clock of system message is overtime, by the data of preserving in the data manager are made amendment, receive the reception of controller to follow-up system message thereby influence system information, the state of the global variable of preserving in according to data management system in the process that receives message decides follow-up reception how to carry out.
Data management system comprises system information manager, scheduling system information information manager and system information common control information manager.The system information manager is used to realize preservation, change and the deletion to system information; The scheduling system information information manager is used to realize to system information receiving scheduling information and the management that whether receives successful information; System information common control information manager is used for realizing preservation and the change to the various common control informations of system information processing procedure.
System information receives controller and indicates frame number and the subframe numbers that obtains current system at the semaphore of each subframe according to the system-frame time controller, schedule information according to the system information in the data management system receives judgement, and controls physical layer to realize to the monitoring of the transmission channel (being PDSCH in the LTE system) of system information with to the reception of system information according to judged result.
The system information processor achieves a butt joint and receives the processing of different system informations, in the LTE system, comprises the system message processor of system information block type 1 to system information block type 11; The system information processor feeds back to system information by data management system with result and receives controller, influences its reception control to follow-up system information.Can change the data in the data management system in the process that the system message processor is handled system message; System information receives in the controller implementation and reads these information voluntarily, decides subsequent action, so implementation only needs unidirectional visit.
In the LTE system, system message type blocks 1 (SIB1, System Information BlockType1) refers to comprise the system information of " whether assessment UE allows to insert the relevant information of certain sub-district and the schedule information of other system informations " content; In the LTE system, system information block type 2 (SIB2, System Information Block Type2) refers to comprise the system information of the general wireless resource configuration of all UE in the sub-district; The system information that comprises the cell reselection relevant information, in the LTE system, be divided into again comprise carry out with frequency, alien frequencies, different radio access technologies cell reselection general information be system information block type 3 (SIB3, System Information Block Type3); The relevant information of the neighbor cell when comprising the co-frequency cell reselection procedure be system information block type 4 (SIB4, SystemInformation Block Type4); That only comprise the required relevant information of alien-frequency district reselection procedure is system information block type 5 (SIB5, System Information Block Type5); That only comprise the required relevant information of different radio access technologies minizone reselection procedure is system information block type 6 (SIB6, System Information Block Type6) and system information block type 7 (SIB7, SystemInformation Block Type7) and system information block type 8 (SIB8, System InformationBlock Type8); The system information that comprises the Home eNodeB name information in the LTE system, refers to system information block type 9 (SIB9, System Information Block Type9); The system information system information block type 10 (SIB10, SystemInformation Block Type10) and the system information block type 11 (SIB11, System InformationBlock Type11) in the LTE system that comprise the seismic sea wave early warning information.
Fig. 2 illustrates the method according to SIM system information management in the wide-band mobile communication of the embodiment of the invention, and with reference to figure 2, this method comprises:
Step S1, start-up system information management controller, information receiving and transmitting device, message constructing and resolver;
After step S2, SIM system information management controller start, receive controller, system information processor, data management system, timer manager, realize initialization data manager and timer manager by the system information in its starting drive.In the LTE system, frame time controller in the timer manager moves according to setting after startup, restart once every 1ms (this time can be regulated according to applied environment), and when each clock is restarted, send semaphore and receive controller, trigger its executable operations to system information;
The frame time controller carries out receiving control at the semaphore of each descending sub frame in step S3, the system information reception controller waiting timer manager;
The system information that receives is submitted to message parse for step S4, information receiving and transmitting device and constructor carries out the parsing of system information, and the SIM system information management controller obtains the type of system information from the message of resolving; This system message is to be received by physical layer by the information receiving and transmitting device, is delivered to the upper strata from bottom, puts into the message sink formation;
The system information type that step S5, system information processor are submitted to according to the SIM system information management controller starts different processing to system information.
The system information that Fig. 3 has provided among Fig. 2 step S3 receives a kind of specific implementation that controller is carried out reception control, comprising:
Step S3.1 system information is waited for the semaphore that the frame time controller sends after receiving the controller startup when each subframe arrives, start the subsequent control process;
After step S3.2 semaphore arrived, system information received controller and obtains current frame number of system and subframe numbers from lower floor;
Step S3.3 system information receive controller according to current system information (in the LTE system, mainly refer to System Frame Number and subframe numbers) and data management system in the judgement that whether receives of schedule information in the scheduling system information information manager, if present frame has system information to need to receive, then enter step S3.4, otherwise, enter S3.1;
The receiving control information of step S3.4 tectonic system information, and send it to lower floor and receive, S3.1 returned.
The system information that Fig. 4 is illustrated in step S3.3 among Fig. 3 receives the particular flow sheet of judging, its step comprises:
Whether step S3.3.1 has earthquake and tsunami early warning information notice, if having, then enters step S3.3.5; If no, then enter step S3.3.2;
Step S3.3.2 judges whether system information will change, if change, then enters step S3.3.3; If do not change, then enter step S3.3.5;
Step S3.3.3 judges that whether system enters the new change cycle, if enter the new change cycle, then enters step S3.3.4; Judge done state step S3.3.12 if no, then enter reception;
Step S3.3.4 puts the changing system information sign in the administration module of common control information non-; Enter to receive and judge done state step S3.3.12;
Whether the system information block 1 in step S3.3.5 fixed schedule cycle receives success, if success then enters step S3.3.9; If success does not then enter step S3.3.6;
Step S3.3.6 judges whether system information (at LTE system middle finger System Frame Number and subframe numbers) satisfies the reception of new system information block 1, if satisfy, enters step S3.3.8; If do not satisfy, enter step S3.3.7;
Step S3.3.7 judges that whether system information (at LTE system middle finger System Frame Number and subframe numbers) satisfies the reception that repeats system for transmitting block of information 1, if satisfy, enters step S3.3.8; If do not satisfy, enter to receive and judge done state step S3.3.12;
Step S3.3.8 tectonic system block of information 1 receiving control information sends lower floor, enters to receive to judge done state step S3.3.12;
Step S3.3.9 judges whether not receive successful system information according to the scheduling system information information in the scheduling system information information management module in the system information data management system, if having, then enters step S3.3.10; Judge done state step S3.3.12 if no, enter reception;
Step S3.3.10 judges whether system information (at LTE system middle finger System Frame Number and subframe numbers) satisfies the reception of one of them system information, if satisfy, enters step S3.3.11; Otherwise enter step S3.3.12;
Step S3.3.11 structure corresponding system information receiving control information sends lower floor, enters to receive to judge done state step S3.3.12;
Step S3.3.12 system information receives judges end.
Fig. 5 has provided the system information processor workflow in one embodiment of Fig. 2 step S5, and its step comprises:
The system information type that step S5.1 resolves is judged, is called different information processing functions according to different information types.If system information block 1 message then enters step S5.2; If system information block 2 message then enter step S5.3; If system information block 3 to 8 message then enter step S5.4; If system information block 9 message then enter step S5.5; If system information block 10 message then enter step S5.6; If system information block 11 message then enter step S5.7; Be enough to top set if be discontented with, then enter step S5.8.
Step S5.2 start-up system block of information 1 message handling device enters step S5.8 after the end;
Step S5.3 start-up system block of information 2 message handling devices enter step S5.8 after the end;
Step S5.4 starts the system information block message handling device that comprises cell reselection information, enters step S5.8 after the end;
Step S5.5 starts the system information processor that comprises the Home eNodeB name, enters step S5.8 after the end;
Step S5.6 start-up system block of information 10 message handling devices contain the system information processor of seismic sea wave master announcement information; Enter step S5.8 after the end;
Step S5.7 start-up system block of information 11 message handling devices contain the system information processor that seismic sea wave is assisted announcement information; Enter step S5.8 after the end;
Step S5.8, system information processing finish.
Fig. 6 has provided among Fig. 5 system information block 1 Message Processing flow process in one embodiment under the S5.2 state, and its step comprises:
Step S5.2.1 judges whether to be the system information block 1 that receives first, if, enter step S5.2.2, if not, step S5.2.3 entered;
Step S5.2.2 preserves new system information block 1 message that receives, and 1 holding time of open system block of information timer is submitted to high level with corresponding information, generates other system message pick-up task chained list, enters step S5.2.13;
Whether step S5.2.3 has seismic sea wave early warning information notice, if having, enters step S5.2.4; If no, then enter step S5.2.5;
Step S5.2.4 adds seismic sea wave early warning master reporting system block of information 10 and the auxilliary reporting system block of information 11 of seismic sea wave early warning to the scheduling system information information manager, enters step S5.2.13;
The paging information reporting system information whether step S5.2.5 receives will change, if enter step S5.2.6; If non-, enter step S5.2.7;
Step S5.2.6 changes sign with paging information reporting system information and puts non-, preserve new system information block 1, restart 1 holding time of system information block timer, submission information is given high-rise, scheduling system information information is preserved into the scheduling system information information manager, enter step S5.2.13;
Whether 1 holding time of step S5.2.7 system information block is overtime, if enter step S5.2.8; If not, enter step S5.2.9;
Step S5.2.8 preserves new system information block 1 information, restarts 1 holding time of system information block timer, and submission information is given high-rise, enters step S5.2.9;
Step S5.2.9 system information block 1 intermediate value changes whether the reporting system information flag bit that will change is true, if enter step S5.2.10; Otherwise enter step S5.2.11;
Step S5.2.10 deposits scheduling system information information in the scheduling system information information manager, system information will be changed sign put 0, enters step S5.2.13;
Whether " system information ident value " be different with the value of preserving before in step S5.2.11 system information type piece 1 information, if different, enter step S5.2.12, otherwise enter step S5.2.13;
Step S5.2.12 preserves in present system information type piece 1 information " system information ident value ", by the scheduling system information information before the deletion of scheduling system information information manager, with system information with the mark position 1 that changes;
It is true that step S5.2.13 receives successful mark position with system information type piece 1, enters step S5.2.14;
The message handling device of step S5.2.14 system information block type 1 finishes operation.
Fig. 7 has provided Fig. 5 step 5.3 system information block type 2 Message Processing flow process in one embodiment, and its step comprises:
Step S5.3.1 judges whether high level has disposed paging cycle, if having, enters step S5.3.2; If no, enter step S5.3.3;
Smaller value in the acquiescence paging cycle that step S5.3.2 system paging cycle is set to carry in high-rise paging cycle that disposes and system information block type 2 message enters step S5.3.4;
Step S5.3.3 system paging cycle is set to the acquiescence paging cycle that carries in system information block type 2 message, enters step S5.3.4;
Step S5.3.4 enters step S5.3.5 according to the change cycle that computing system information changes;
Whether comprise multimedia broadcast multicast Single Frequency Network sub-frame configuration chained list message in the step S5.3.5 system information block type 2,, enter step S5.3.6 if comprise; If do not comprise, enter step S5.3.7;
Step S5.3.6 calculates the multimedia broadcast multicast Single Frequency Network subframe of indicating in the multimedia broadcast multicast Single Frequency Network sub-frame configuration chained list and preserves (these subframes do not have other descending distribution), enters step S5.3.7;
The system clock and the constant thereof that dispose in terminal timer and the constant thereof in step S5.3.7 application system type of information block 2 message enter step S5.3.8;
Wireless resource configuration in step S5.3.8 application system type of information block 2 message in the Radio Resource generic configuration; Enter step S5.3.9;
The exclusive Paging Control Channel configuration information of appointment in the step S5.3.9 application protocol; Enter step S5.3.10;
Step S5.3.10 saved system type of information block 2 information enter step S5.3.11;
It is true that step S5.3.11 receives successful mark position with system information block type 2, enters step S5.3.12;
Step S5.3.12 system information type piece 2 message handling devices finish operation.
In the technique scheme, relate to other system information processing device, carry out, do not do detailed description herein according to the agreement regulation.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.