CN101827395A - Information updating method of LTE (Long Term Evolution) system, base station, user terminal and system - Google Patents
Information updating method of LTE (Long Term Evolution) system, base station, user terminal and system Download PDFInfo
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Abstract
The invention discloses a n information updating method of an LTE (Long Term Evolution) system, a base station, a user terminal and a system, wherein the method comprises the following steps of: setting indication information used for directing to a next SIB (System Information Block) required to be updated in each SIB required to be updated; and according to the indication information required to be updated in the SIB, sequentially carrying out system information updating. The invention can overcome the defects of high signaling expense, complexity, and the like of the system updating mode in the prior art and achieves the purpose of normally updating the system information by using less signaling expense and a simple mode.
Description
Technical field
The present invention relates to wireless technology in the communications field, particularly, relate to 3GPP Long Term Evolution (LTE) system information update method, base station, user terminal and system.
Background technology
In the existing 3GPP LTE system, system information is made of different system information block (SystemInformation Block is called for short SIB), as SIB1, SIB2...SIB11, and the different system information of each SIB representative.In the existing LTE standard, when the needs updating system information, user terminal thinks that all system informations of self storing all are invalid, need read all system informations again to guarantee normal renewal.But owing in the system information renewal process, be not that all system informations all can change, the method that therefore reads all system informations can increase the burden of user terminal, wastes unnecessary transmitting power, and increases system information renewal time delay.
At the system information replacement problem, mainly contain following four kinds of solutions at present.
First kind of scheme is at the different SIB in idle " IDLE " and connection " CONNECTTED " state, adopt different system message Radio Network Temporary Identifier (SystemInformation-Radio Network Temporary Identifier is called for short SI-RNTI).This kind scheme is owing to exist the influence stride layer, and compares with following 3 kinds of schemes and not have advantage, therefore is not used.
Second kind of scheme is to add one " value tag " at each SIB in SIB1, adopts the renewal of indicating each SIB based on label (value tag).This scheme is owing to introduce a lot of value tag values in SIB1, the load and the signaling consumption that therefore can increase SIB1 are bigger.
The third scheme is to adopt the mode of " Bit-Map " in SIB1, uses one " bit " at each SIB, carries out the system update indication.This scheme is controlled signaling owing to need to introduce the Map that surpasses 10bit at least in SIB1, and because SIB1 sends frequently, and it is more that therefore reality is introduced control signaling bit, signaling consumption is bigger.
The 4th kind of scheme is to add one " value tag " in each SIB, reads " value tag " when UE receives each SIB, if value tag does not change, then can not upgrade the information of this SIB, and this scheme still requires UE that each SIB is received.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: though occurred some solutions at present, all there is shortcoming separately in various schemes,, load increase big as update mode complexity, signaling consumption etc.
Summary of the invention
First purpose of the present invention is defectives such as, complexity big at system update mode signaling consumption in the prior art, proposes a kind of LTE system information update method, to realize adopting the less normal updating system information of signaling consumption.
Second purpose of the present invention is defectives such as, complexity big at system update mode signaling consumption in the prior art, proposes a kind of base station, to realize adopting less signaling consumption to carry out the setting and the renewal of system information.
The 3rd purpose of the present invention be upgrade when reading SIB message at user terminal in the prior art complicated, need defective such as all reception, a kind of user terminal is proposed, can adopt simple mode to carry out the renewal of system information and improve the speed of renewal realizing.
The 4th purpose of the present invention is defectives such as, complexity big at system update mode signaling consumption in the prior art, proposes a kind of LTE information update system, to realize adopting the less normal updating system information of signaling consumption.
For realizing above-mentioned first purpose, according to an aspect of the present invention, provide a kind of LTE system information update method.
LTE system information update method according to the embodiment of the invention comprises: the indication information that is provided for pointing to the SIB of next needs renewal in each SIB that need upgrade; Indication information among the SIB of Geng Xining carries out system information successively and upgrades as required.
Wherein, this indication information can be for forcing or optional some bits.
Preferably, the number of bits of indication information is determined by total SIB number, and is pointed to the next identification information that needs the SIB of renewal.
Preferably, indication information can also refer to the identification information of the SIB that need upgrade to the next one and the increment of self identification.
Wherein, indication information among the SIB of Geng Xining as required, the operation of carrying out the system information renewal successively can comprise: system information is upgraded from SIB1 each time, indication information among the SIB1 points to the next SIB that needs renewal, information links to the next SIB that needs renewal successively as indicated, finishes up to renewal.
For realizing above-mentioned second purpose, according to another aspect of the present invention, provide a kind of base station.
Base station according to the embodiment of the invention comprises: module is set, is used for being provided for pointing at each SIB that need upgrade the indication information of the SIB of next needs renewal; Sending module is used to send the SIB that the needs that comprise indication information upgrade.
Wherein, module is set can be comprised: first is provided with submodule, is used for being determined by total SIB number the number of bits of indication information, and the indication information that is provided with in the SIB that needs upgrade points to the next identification information that needs the SIB of renewal; Perhaps second submodule is set, is used for indication information being set, and this indication information is the identification information of the next SIB that need upgrade and the increment information of self identification at the SIB that needs upgrade.
For realizing above-mentioned the 3rd purpose, according to another aspect of the present invention, provide a kind of user terminal, having comprised: receiver module, be used to receive the SIB message that the base station sends, wherein comprise the indication information of the SIB that points to next needs renewal among each SIB that need upgrade; Processing module is used for beginning to read from SIB1, reads the SIB that next needs upgrade according to the indication information among the SIB1, and information reads the next SIB that needs renewal as indicated successively, finishes up to renewal.
For realizing above-mentioned the 4th purpose, according to another aspect of the present invention, provide a kind of LTE information update system.
LTE information update system according to the embodiment of the invention comprises: the base station is used for being provided for pointing to the indication information of the SIB of next needs renewal at each SIB that need upgrade, and sends each SIB; User terminal is used to receive the SIB that the base station sends, and the indication information among the SIB of Geng Xining reads the SIB of renewal successively as required, carries out system information and upgrades.
LTE system information update method, base station, user terminal and the system of various embodiments of the present invention, because being provided with, employing points to the next indication information that needs the SIB of renewal in the SIB that needs upgrade, therefore, adopting chain type to carry out system information upgrades, update mode is simple, signaling consumption is few, simultaneously can make user terminal avoid reading unnecessary system information, normally upgrade needed system information.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is embodiment one flow chart of the LTE system information update method according to the present invention;
Fig. 2 is the embodiment two process of analysis figure of the LTE system information update method according to the present invention;
Fig. 3 is the embodiment three signaling process figure of the LTE system information update method according to the present invention;
Fig. 4 is embodiment one schematic diagram of the base station according to the present invention;
Fig. 5 is embodiment two schematic diagrames of the base station according to the present invention;
Fig. 6 is the example structure schematic diagram of LTE information update system and user terminal according to the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
LTE system information update method of the present invention, base station and system, adopt based on the update mode of label (value tag) and " bit " indication SIB different with available technology adopting, the present invention adopts chained form system information updating mode, below by Fig. 1-Fig. 6 to each embodiment of method of the present invention, base station and system explanation that makes an explanation.
Method embodiment
Fig. 1 is embodiment one flow chart of the LTE system information update method according to the present invention, and as shown in Figure 1, present embodiment comprises:
Step S102: in each SIB that need upgrade, be provided for pointing to the next indication information that needs the SIB of renewal;
Step S104: the indication information among the SIB of Geng Xining as required, carry out system information successively and upgrade;
Step S106: whether the renewal process of judging system information finishes, if for not, then forward step S104 to and continue to carry out the renewal of system information according to the indication information among the SIB, if for being the renewal process end.
The method for updating system of present embodiment adopts chain type that update mode is set, as: the base station can be provided with the indication information of some bits in each SIB that need upgrade, be used to the SIB that indicates next needs to upgrade.System information is upgraded initially from SIB1 each time, and the indication information among the SIB1 points to the next SIB that upgrades of needing, and next the indication information among the SIB of this renewal then points to needs the SIB that upgrades, and the like.Next also point in the indication information among the SIB that needs upgrade needs the SIB that upgrades, and then expression is upgraded and finished, and the information that continues is as indicated upgraded, and the indication information in the SIB that next needs to upgrade does not point to, and expression is upgraded and finished.
The update method that present embodiment adopts simply, only needs less signaling consumption can finish system update, compared with prior art, can reduce signaling consumption, update mode simple, can make terminal avoid receiving unnecessary system information simultaneously, normally upgrade needed system information.
Fig. 2 is the embodiment two process of analysis figure of the LTE system information update method according to the present invention, as shown in Figure 2, and the SIB for needing to upgrade of light color in the present embodiment, dark SIB for not upgrading.Some " bit " indication information is set in each SIB that need upgrade.Information updating each time is initial from SIB1, and indication information among the SIB1 points to the next SIB that upgrades of needing, and next the indication information among the SIB of this renewal then points to needs the SIB that upgrades, and as shown in Figure 2, renewal can be adopted following dual mode:
Mode 1: the indication information that this kind mode is provided with in the SIB of each renewal, promptly number of bits can be calculated by total SIB number, and points to the next identification information that needs the SIB that upgrades, is 5 as the identification information of SIB5.As shown in Figure 2, indication information is 2 → SIB2 among the SIB1; Indication information is 5 → SIB5 among the SIB2; Indication information is 8 → SIB8 among the SIB5, and the like;
Mode 2: the indication information that this kind mode is provided with in the SIB of each renewal (bit) is the increment information of sign and this SIB sign of the next SIB that need upgrade.As shown in Figure 2, the bit of indication information is 1 among the SIB1, i.e. SIB1 → SIB2; The SIB2 indication information is 3, i.e. SIB2 → SIB5; The SIB5 indication information is 3, i.e. SIB5 → SIB8.
Terminal can be according to the indication information that reads among each SIB, and promptly the SIB of next bar renewal reads normal updating system information.
Adopt indication information to carry out in the dual mode of information system renewal, indication information can be pressure or optional, promptly in existing protocol, can require all need reserve among each SIB the corresponding bits position as indication information, perhaps require to reserve the corresponding bits position again as indication information among the SIB of each variation, its reserved bit figure place should be able to cover all SIB information.With existing " 3GPP Release 8 " system is example, has 11 SIB in this system, and when wherein other SIB changed, SIB1 necessarily changed.Identify other 10 SIB and need in SIB information, introduce 4 bits (4 bits can identify 16 different SIB information altogether) at most.Under existing situation, need 4 bits at least as indication information.
Fig. 3 is the embodiment three signaling process figure of the LTE system information update method according to the present invention, and idiographic flow describes in conjunction with Fig. 2.Fig. 3 is applied in renewal signaling process figure in 3G or the 4G system for the present invention, as shown in Figure 3, comprises portable terminal (User Equipment is called for short UE) and base station (eNB), and present embodiment comprises:
Step S302:eNB is provided with the indication information that points to next bar SIB in the SIB of each renewal, eNB broadcast transmission MIB and SIB message, and as shown in Figure 2, the SIB of renewal is SIB1, SIB2, SIB5, SIB8...;
Step S304:UE receives the MIB signaling of broadcasting, receives SIB1, reads the indication information among the SIB1, knows the SIB2 that is of next bar renewal;
Step S306: read SIB2 according to the information among the SIB1, obtain system update information, and read the indication information among the SIB2 simultaneously, know the SIB5 that is of next bar renewal;
Step S308:UE is according to the information among the SIB2, skips SIB3 and SIB4 and directly reads SIB5 and carry out system information and upgrade, and obtain the SIB8 that is that next bar upgrades;
Step S310:UE is according to the indication information among the SIB5, skips SIB6 and SIB7 and directly reads SIB8 and carry out system information and upgrade, if the indication information of SIB8 is also meaningful, then is linked to SIB that next bar upgrades and carries out system information and upgrade, and the like; If the indication information of SIB8 does not have content or SIB8 by the mode of indication, represent the follow-up system information block that does not have renewal, the system update process finishes.
Need to prove, the indication information of each step in the present embodiment can adopt among the embodiment two mode 1 and mode 2 dual modes to carry out system information to upgrade and be provided with, particular content please see embodiment two for details, no longer same or similar content is repeated in this description at this.
It is as follows to calculate signaling consumption at the technical scheme of said system update method below:
With existing Release 8 systems is example, has 11 SIB in the existing system, and when wherein other SIB changed, SIB1 necessarily changed.Identify other 10 SIB, need in SIB information, introduce 4 bits (4 bits can identify 16 different SIB information altogether).
The poorest situation is that each SIB all changes in the scheme, and SIB subsequently 1/2 changes, and the overhead bit in the 80ms of this moment is:
4(bit，SIB1)+4(bit，SIB2)*1/2+4(bit，SIB2)*1/4+......+4(bit，SIB2)*1/1024＝8bit。
Base station embodiment
According to the embodiment of the invention, provide a kind of base station.Fig. 4 is embodiment one schematic diagram of the base station according to the present invention, and present embodiment comprises:
Module 2 is set, is used for being provided for pointing to the indication information of the SIB of next needs renewal at each SIB that need upgrade;
Sending module 4 is used to send the SIB that the needs that comprise indication information upgrade.
In the present embodiment, module 2 can be provided with some bits in each SIB that need upgrade indication information is set, is used to indicate the SIB of next needs renewal, the SIB that sending module 4 will comprise indication information sends to user terminal.The base station of present embodiment is by sending the SIB that comprises indication information to user terminal, need less signaling consumption can finish system update, compared with prior art, can reduce signaling consumption, update mode simple, can make user terminal avoid receiving unnecessary system information simultaneously, normally upgrade needed system information.
Fig. 5 is embodiment two schematic diagrames of the base station according to the present invention, and as shown in Figure 5, present embodiment comprises module 2 and sending module 4 are set that wherein, the effect of two modules has obtained description in the embodiment one of the base station according to the present invention, do not repeat them here.Present embodiment comprises module 2 further refinements are set:
First is provided with submodule 22, is used for being determined by total SIB number the number of bits of indication information, and the described indication information that is provided with in the SIB that needs upgrade points to the next identification information that needs the SIB of renewal; Or
Second is provided with submodule 24, is used at the SIB that needs upgrade indication information being set, and this indication information is the identification information of the next SIB that need upgrade and the increment of self identification.
Module 2 is set can adopt first submodule 22 or second to be set the two kind update modes of submodule 24 corresponding to Fig. 2 embodiment are set, wherein, first is provided with submodule 22 adopts mode 1 shown in Figure 2 to carry out the indication information setting, second is provided with submodule 24 adopts mode 2 shown in Figure 2 to carry out the indication information setting, concrete two kinds of set-up modes see also the associated description of Fig. 2 embodiment, identical or similar techniques content are not carried out repeat specification at this.
System and user terminal embodiment
According to the embodiment of the invention, a kind of LTE information update system and user terminal are also provided.Fig. 6 is the example structure schematic diagram of LTE information update system and user terminal according to the present invention.As shown in Figure 6, present embodiment comprises base station 1, is used for being provided for pointing to the indication information of the SIB of next needs renewal at each SIB that need upgrade, and sends each SIB; User terminal 3 is used to receive the SIB that described base station sends, and the indication information among the SIB of Geng Xining reads the SIB of renewal successively as required, carries out system information and upgrades.
The internal structure of base station 1 can not repeat them here referring to the related description of Fig. 4 or Fig. 5 embodiment in the present embodiment.As shown in Figure 6, user terminal 3 can comprise in the present embodiment: receiver module 32, be used to receive the SIB message that base station 1 sends, and wherein comprise the indication information of the SIB that points to next needs renewal among each SIB that need upgrade; Processing module 34 is used for beginning to read from SIB1, reads the SIB that next needs upgrade according to the indication information among the SIB1, reads the next SIB that needs renewal according to described indication information successively, finishes up to renewal.Wherein base station 1 can be eNB in the system of present embodiment, and user terminal can be UE, and concrete renewal process can be referring to Fig. 3 embodiment and related description.
The information update system of present embodiment adopts chain type that update mode is set, and can the indication information of some bits be set by any of dual mode in each SIB that need upgrade as: base station, and indication is next to need the SIB that upgrades.After user terminal received the SIB message of base station in the present embodiment, the indication information among the SIB that upgrades according to need carried out chain type and upgrades, and avoiding receiving does not need SIB and the respective handling upgraded, can save the renewal speed and the treatment effeciency of user terminal greatly.The update method that present embodiment adopts simply, only needs less signaling consumption can finish system update, compared with prior art, can reduce signaling consumption, update mode simple, can make terminal avoid receiving unnecessary system information simultaneously, normally upgrade needed system information.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a LTE system information update method is characterized in that, comprising:
In each SIB that need upgrade, be provided for pointing to the next indication information that needs the SIB of renewal;
Described indication information according among the described SIB that needs to upgrade carries out system information successively and upgrades.
2. method according to claim 1 is characterized in that, described indication information is for forcing or optional some bits.
3. method according to claim 2 is characterized in that, the number of bits of described indication information is determined by total SIB number, and pointed to the next identification information that needs the SIB of renewal.
4. method according to claim 2 is characterized in that, described indication information is the identification information of the next SIB that need upgrade and the increment information of self identification.
5. according to each described method among the claim 1-4, it is characterized in that described according to the described indication information among the described SIB that needs to upgrade, the operation of carrying out the system information renewal successively comprises:
System information is upgraded from SIB1 each time, and the indication information among the SIB1 points to the SIB that the next one needs renewal, links to the next SIB that needs renewal successively according to described indication information, finishes up to renewal.
6. a base station is characterized in that, comprising:
Module is set, is used for being provided for pointing to the indication information of the SIB of next needs renewal at each SIB that need upgrade;
Sending module is used to send the SIB that the needs that comprise described indication information upgrade.
7. base station according to claim 6 is characterized in that, the described module that is provided with comprises:
First is provided with submodule, is used for being determined by total SIB number the number of bits of indication information, and the described indication information that is provided with in the SIB that needs upgrade points to the next identification information that needs the SIB of renewal; Perhaps
Second is provided with submodule, is used at the SIB that needs upgrade described indication information being set, and described indication information is the identification information of the next SIB that need upgrade and the increment information of self identification.
8. an information update system relates to the LTE system, it is characterized in that, comprising:
The base station is used for being provided for pointing to the indication information of the SIB of next needs renewal at each SIB that need upgrade, and sends each SIB;
User terminal is used to receive the SIB that described base station sends, and the described indication information according among the described SIB that needs to upgrade reads the SIB of renewal successively, carries out system information and upgrades.
9. system according to claim 8 is characterized in that, described base station comprises:
First is provided with submodule, is used for being determined by total SIB number the number of bits of indication information, and the described indication information that is provided with in the SIB that needs upgrade points to the next identification information that needs the SIB of renewal; Perhaps
Second is provided with submodule, is used at the SIB that needs upgrade described indication information being set, and described indication information is the identification information of the next SIB that need upgrade and the increment information of self identification.
10. a user terminal is characterized in that, comprising:
Receiver module is used to receive the SIB message that the base station sends, and wherein comprises the indication information of the SIB that points to next needs renewal among each SIB that need upgrade;
Processing module is used for beginning to read from SIB1, reads the SIB that next needs upgrade according to the indication information among the SIB1, reads the next SIB that needs renewal according to described indication information successively, finishes up to renewal.
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Application publication date: 20100908 |