CN101114869B - System message block scheduling method and device in UMTS system - Google Patents

Abstract

The invention discloses a method and a device of dispatching a system information module in a UMTS system to solve the problem that the current UMTS system can not guarantee the successful dispatching of the system information module. The method of the invention comprises that the validity of the current disposition data of all the information modules is determined, the information modules include a dispatching module and a system information module, the corresponding system information dispatching schedule is chosen according to the determination result and the needed dispatching module and the related dispatching information between every dispatching module and every information module are decided and the related dispatching information is provided to a user terminal. The invention can correctly determine the needed dispatching module needed when calling the system information and the dispatching information of every system information module to guarantee the effectiveness and the credibility of the dispatching of the system information module.

Description

The method and the device of system information block scheduling in a kind of UMTS system

Technical field

The present invention relates to moving communicating field, particularly the method and the device of system information block scheduling in the UMTS system.

Background technology

At universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) in, subscriber terminal equipment (User Equipment, UE) after the start, at first carry out Cell searching, after it searches a proper cell, just begin to read the broadcast channel (BroadcastChannel of this sub-district, BCH) to obtain corresponding system information (comprising information such as current area public resource, cell selecting gravity treatment), UE just can connect with WCDMA system base-station NodeB according to these system informations.This shows that system information is UE and the network bridge that is mutually related, can system information correctly be transmitted the wireless access that will determine UE and finish smoothly.

System information (System Information) is divided into different system information blocks (System Information Block according to the difference of its content, SIB), for it can be sent from wave point accurately and efficiently, UMTS grounding wireless access network network (UMTS terrestrial Radio Access Network, UTRAN) except the value that each system information block will be set, also to reasonably dispatch it, as: the form and the length that system information block segmentation/be concatenated into are fit to broadcast channel BCH transmission block.

Host system message block (Master Information Block, MIB) or Scheduling Block (Schedule Block1/Schedule Block 2, SB1/SB2) be mainly used to comprise the schedule information of each system information block, therefore, to dispatch system information block earlier, after obtaining their schedule information, again the schedule information of each system information block is inserted in host system message block or the Scheduling Block.Described schedule information mainly comprises information such as repetition period SIB_REP, segments SEG_COUNT, initial position SIB_POS and offset SIB_OFF; Wherein,

SIB_REP, the repetition period of expression system information block SIB, for example: the repetition period is 4, represents that then per 4 frames send once this SIB, described frame is the 10ms radio frames; Each system information block, host system message block or Scheduling Block all should provide its corresponding SIB_REP, it is high more to be normally defined more little its priority of SIB_REP, wherein, MAX_REP is the repetition period maximum in all system information blocks, and the repetition period that is about to all block of informations sorts from small to large.

SEG_COUNT, the number of expression SIB segmentation, computing formula is as follows:

$\mathrm{SEG}\_{\mathrm{COUNT}}_i=\mathrm{floor}\left(\frac{{\mathrm{Len}}_{\mathrm{Si}{d}_i}}{{\mathrm{Len}}_{\mathrm{BCH}}-R}\right),$ Be that SEG_COUNTi equals

Last integer; Wherein:

Len _Sibi: the length behind the Sibi coding;

Len _BCH: a length of removing the BCH transmission block that consumes;

R: pre-allowance.

For example: $\frac{{\mathrm{Len}}_{\mathrm{Sibi}}}{{\mathrm{Len}}_{\mathrm{BCH}}-R}=2.5$ Situation under, SEG_COUNTi equals 3.

SIB_POS, the position of first segmentation in a repetition period of expression SIB or SIB, SIB_POS=0...SIB_REP-2 is a step-length with 2; Suppose SIB_REP=4, then the span of first segmentation position of system information block is 0 or 2; If SIB_REP=8, then the span of first segmentation position of system information block is 0,2,4 or 6.

SIB_OFF, after expression SIB, SB1 or the SB2 segmentation, segmentation subsequently and the intersegmental offset of last branch are designated as SIB_OFF (i), i=1,2 ..., SEG_COUNT-1; SIB_OFF arranges according to ascending order.

There are two uncertain factors in the existing UMTS system:

1, Scheduling Block number, the Scheduling Block that promptly needs;

2, the corresponding relation of each system information block scheduling information and Scheduling Block, promptly which Scheduling Block is the schedule information of which system information block should be included in.

Above-mentioned uncertain factor causes the length after the schedule information of system information block depends on each Scheduling Block coding, and the length behind the Scheduling Block coding depends on the schedule information of each system information block, has so just constituted one " circulation relies on ".

At the problems referred to above, existing systems message scheduling method has all adopted the principle of pre-estimation, promptly pre-estimate out the Scheduling Block number of needs earlier according to the length behind each system information block encoding, then, draw the schedule information of each system information block on this basis again.But when the size variation of some system information block, schedule information originally is no longer suitable probably, and so just constantly the parameters such as repetition period of Adjustment System block of information regain one and overlap suitable configuration data, and it handles complexity; And in some cases, may cause the scheduling system information failure owing to can not find suitable configuration data.

Summary of the invention

In view of this, the invention provides system information block is transferred in a kind of UMTS system method and device, exist when unavailable in order to the configuration data that solves system information block in the prior art handle complicated, even exist can not successful dispatching patcher block of information problem

The present invention includes following scheme:

The method of system information block scheduling in a kind of UMTS system comprises that the step is poly-

Judge the availability of all block of information current configuration data, described block of information comprises Scheduling Block and system information block;

When described configuration data can with and system information block scheduling when failure, again according to the definite Scheduling Block that needs of the disabled system information block scheduling scheme of configuration data, and determine the relevant schedule information of each Scheduling Block and each system information block, and described relevant schedule information is offered user terminal;

When described configuration data is unavailable, determine the Scheduling Block of needs according to the disabled system information block scheduling scheme of configuration data, and determine the relevant schedule information of each Scheduling Block and each system information block, and described relevant schedule information is offered user terminal;

Wherein, the disabled system information block scheduling scheme of described configuration data comprises:

The repetition period of the system information block of the Scheduling Block correspondence that obtains setting according to the repetition period and the Scheduling Block parameter value calculation of each Scheduling Block, and calculate the length of the Scheduling Block of setting according to this repetition period, when the length of the Scheduling Block of described setting all is less than or equal to the length of broadcast channel BCH transmission block, the Scheduling Block of setting is defined as the Scheduling Block of needs, otherwise, increase the number of the Scheduling Block of setting, recomputate the length of the Scheduling Block of setting, until finding suitable Scheduling Block, wherein, the Scheduling Block of setting comprises: host system message block (MIB), first Scheduling Block (SB1), and second one or more in the Scheduling Block (SB2).

Wherein, described Scheduling Block comprises host system message block MIB, the first Scheduling Block SB1 and the second Scheduling Block SB2.

Wherein, described configuration data comprises repetition period and segments.

In the said method, whether be not less than the availability that each system information block and each Scheduling Block take system frame number SFN in the described maximum repetition period total number is judged described configuration data according to 1/2nd of the maximum repetition period in all block of informations, if be not less than, judge that then described configuration data can use; Otherwise, judge that described configuration data is unavailable.

But the described configuration data time spent according to the repetition period of each system information block, is calculated the schedule information total length of the system information block of the Scheduling Block correspondence of setting, and determines the Scheduling Block of needs according to described schedule information total length;

According to the repetition period of each system information block, determine the schedule information of each block of information, wherein, the schedule information of determining each block of information is meant Scheduling Block and the room of each system information block in its corresponding repetition period that search is determined in the system frame number SFN sequence, and when determining that described room is the initial position of block of information, it is labeled as " taking ", and in the repetition period of each block of information correspondence, search the room of subsequent segment, and the room that searches is labeled as " taking " according to described room.

Wherein, when the Scheduling Block of setting is MIB, when the schedule information total length of all system information blocks is less than or equal to the difference of the length of broadcast channel BCH transmission block and set point, determine that Scheduling Block only needs MIB; Otherwise, the Scheduling Block of setting is updated to MIB and SB1, determine the Scheduling Block that needs by the schedule information total length of the residue SIB the schedule information of calculating in being contained in MIB.

Wherein, when the Scheduling Block of setting is MIB and SB1, when the schedule information total length of the residue SIB described schedule information in being contained in MIB is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB and SB1; Otherwise, the Scheduling Block of setting is updated to MIB, SB1 and SB2, determine the Scheduling Block that needs by the schedule information total length of the residue SIB the schedule information of calculating in being contained in MIB and SB1.

Wherein, when the Scheduling Block of setting is MIB, SB1 and SB2, when the schedule information total length of the residue SIB the schedule information in being contained in MIB and SB1 is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB, SB1 and SB2, otherwise, determine that Scheduling Block is MIB, SB1 and SB2, and SB1 and/or SB2 will carry out segmentation.

In the said method, the schedule information of determining each block of information is meant search Scheduling Block and the room of each system information block in its corresponding repetition period in the system frame number SFN sequence, and when determining that described room is the initial position of block of information, it is labeled as " taking ", and in the repetition period of each block of information correspondence, search the room of subsequent segment, and the room that searches is labeled as " taking " according to described room.

1/2nd of the described system information block repetition period was not less than Scheduling Block and takies the number of system frame number SFN and the total number sum that all system information blocks take system frame number SFN in the repetition period of system information block.

The device of system information block scheduling in a kind of UMTS system comprises:

Rm-cell is used to manage the configuration data of each block of information, and described block of information comprises Scheduling Block and system information block;

Judging unit is used to judge the availability of each block of information current configuration data, and judged result is exported to scheduling unit;

Scheduling unit, be used for when described configuration data can with and system information block scheduling when failure, again according to the definite Scheduling Block that needs of the disabled system information block scheduling scheme of configuration data, and the relevant schedule information of definite each Scheduling Block and each system information block, when described configuration data is unavailable, determine the Scheduling Block of needs according to the disabled system information block scheduling scheme of configuration data, and determine the relevant schedule information of each Scheduling Block and each system information block;

Transmitting element is used for described relevant schedule information is offered user terminal;

Wherein, scheduling unit is when described configuration data is unavailable, the repetition period that also is used for the system information block of the Scheduling Block correspondence that repetition period and Scheduling Block parameter value calculation according to each Scheduling Block obtain setting, and calculate the length of the Scheduling Block of setting according to this repetition period, when the length of the Scheduling Block of described setting all is less than or equal to the length of broadcast channel BCH transmission block, the Scheduling Block of setting is defined as the Scheduling Block of needs, otherwise, increase the number of the Scheduling Block of setting, recomputate the length of the Scheduling Block of setting, until finding suitable Scheduling Block, wherein, the Scheduling Block of setting comprises: host system message block (MIB), first Scheduling Block (SB1), and second one or more in the Scheduling Block (SB2).

Whether described judging unit is not less than the availability that each system information block and Scheduling Block take system frame number SFN in the described maximum repetition period total number is judged described configuration data according to 1/2nd of the maximum repetition period in all block of informations, if be not less than, judge that then described configuration data can use; Otherwise, judge that described configuration data is unavailable.

But described scheduling unit according to the repetition period of each system information block, calculates the schedule information total length of the system information block of the Scheduling Block correspondence of setting in the described configuration data time spent, and determines the Scheduling Block of needs according to described schedule information total length; And, according to the repetition period of each system information block, determine the schedule information of each block of information, wherein, the schedule information of determining each block of information is meant Scheduling Block and the room of each system information block in its corresponding repetition period that search is determined in the system frame number SFN sequence, and when determining that described room is the initial position of block of information, it is labeled as " taking ", and in the repetition period of each block of information correspondence, search the room of subsequent segment, and the room that searches is labeled as " taking " according to described room.

When the Scheduling Block of setting is MIB, when described scheduling unit is less than or equal to the difference of the length of broadcast channel BCH transmission block and set point at the schedule information total length of all system information blocks, determine that scheduling only needs MIB; Otherwise, the Scheduling Block of setting is updated to MIB and SB1, determine that by the schedule information total length of the residue SIB the schedule information of calculating in being contained in MIB the scheduling of needs is determined.

When the Scheduling Block of setting is MIB and SB1, when the schedule information total length of the residue SIB of described scheduling unit the described schedule information that is contained in MIB is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB and SB1; The Scheduling Block of setting is updated to MIB, SB1 and SB2, determines the Scheduling Block that needs by the schedule information total length of the residue SIB the schedule information of calculating in being contained in MIB and SB1.

When described scheduling unit is MIB, SB1 and SB2 when the Scheduling Block of setting, when the surplus key information total length that removes SIB the schedule information in being contained in MIB and SB1 is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB, SB1 and SB2, otherwise, determine that Scheduling Block is MIB, SB1 and SB2, and SB1 and/or SB2 will the sections of carrying out.

Described scheduling unit is when the repetition period of computing system block of information, and 1/2nd of the described system information block repetition period was not less than Scheduling Block and takies the number of system frame number SFN and the total number sum that all system informations breath certainly takies system frame number SFN in the repetition period of system information block.

Beneficial effect of the present invention is as follows:

The present invention adopts the method assess the configuration data availability in advance accurately to determine the Scheduling Block number that needs and the schedule information of each system information block, and employing this method has been avoided the scheduling computing of blindness, has reduced the possibility that system information block scheduling is failed; And, under the inappropriate situation of configuration data, adopt the inventive method still can complete successfully the scheduling of system information block, thereby guaranteed the validity and the reliability of system information block scheduling.

Description of drawings

Fig. 1 is the apparatus structure schematic diagram of system information block scheduling in the embodiment of the invention;

Fig. 2 is the main realization flow figure of system information block scheduling in the embodiment of the invention;

Fig. 3 is the realization flow figure of system information block scheduling scheme one in the embodiment of the invention;

Fig. 4 is the realization flow figure of system information block scheduling scheme two in the embodiment of the invention.

Embodiment

Can not guarantee the problem that system information block is successfully dispatched in order to solve in the prior art, the present invention assessed the availability of configuration data in advance before scheduling system information, further came to determine the system information block scheduling scheme according to assessment result.

In the embodiment of the invention, system information block is divided into two classes, i.e. Scheduling Block and system information block; Wherein, Scheduling Block comprises MIB, SB1 and SB2, and other system information block all is called system information block SIB.

Can adopt following two schemes to realize the scheduling of system information block in the present embodiment:

Scheme one: at first obtain the repetition period of each system information block, determine the Scheduling Block that needs, determine the relevant schedule information of each Scheduling Block and each system information block then by the schedule information total length that calculates each system information block.

Scheme two: at first obtain the repetition period of each Scheduling Block and the repetition period that selection scheduling piece parameter value calculation draws each system information block, and calculate each Scheduling Block length according to this repetition period and determine the Scheduling Block that needs, determine each Scheduling Block schedule information relevant then with each system information block.

See also Fig. 1, this figure is the apparatus structure schematic diagram of system information block scheduling in the present embodiment UMTS system, and this device comprises rm-cell 10, judging unit 11, scheduling unit 12 and transmitting element 13; Described rm-cell 10 is used to manage the configuration data of each Scheduling Block and each system information block; Described judging unit 11 is used to judge the availability of each Scheduling Block and each system information block current configuration data, and judged result is exported to scheduling unit 12; Described scheduling unit 12 is used for selecting corresponding system information block dispatching scheme according to described judged result, and the relevant schedule information of determining each Scheduling Block and each system information block; But, adopt such scheme one to dispatch in the described configuration data time spent; When described configuration data is unavailable, adopt such scheme two to dispatch; Described transmitting element 13 is used for described relevant schedule information is offered user terminal.

As shown in Figure 2, the main realization flow of system information block scheduling is as follows in the UMTS system:

Step 200, rm-cell 10 obtain the repetition period SIB_REP of each Scheduling Block and each system information block.

Step 201, each Scheduling Block and each system information block are carried out the ASN.1 coding.

Step 202, calculate each system information block segments SEG_COUNT, at this moment, the segments of each Scheduling Block correspondence is defaulted as 1.

Step 203, from all repetition periods, select maximum repetition period MAX_REP.

Step 204, rm-cell 10 are brought SIB_REP, MAX_REP and SEG_COUNT in the following formula into;

$\underset{i=0}{\overset{\mathrm{MaxIb}}{\mathrm{\Σ}}}(\frac{\mathrm{MAX}\_\mathrm{REP}}{\mathrm{SIB}\_{\mathrm{REP}}_i}\×\mathrm{SEG}\_\mathrm{COUN}{T}_i)\≤\mathrm{MAX}\_\mathrm{REP}/2---\left(1\right)$

That is: each system information block is less than or equal to 1/2nd of the described maximum repetition period with each Scheduling Block takies system frame number SFN in the maximum repetition period in all block of informations total number; Wherein: MaxIb is the total number (comprising MIB, SB1 and SB2) of all block of informations that will send.

Whether step 205, judging unit 11 judgment formulas (1) are set up; If set up, then execution in step 206; Otherwise, execution in step 208.

Step 206, scheduling unit 12 selection schemes one are carried out system information block scheduling.

Step 207, scheduling unit 12 judge whether scheme one scheduling is successful; If success, then execution in step 209, otherwise, execution in step 208.

Step 208, scheduling unit 12 selection schemes two are carried out system information block scheduling.

Step 209, transmitting element 13 offer user terminal with the schedule information of all Scheduling Blocks and system information block.

Be elaborated at scheme one, two respectively below.

For scheme one, at first obtain the repetition period of each system information block, determine the Scheduling Block that needs by the schedule information total length that calculates each system information block, determine the relevant schedule information of each Scheduling Block and each system information block then.As shown in Figure 3, employing scheme one realizes that the flow process of system information block scheduling is as follows:

Step 300, rm-cell 10 obtain the SIB_REP and the SEG_COUNT of each system information block.

Step 301, suppose to use Scheduling Block MIB just can hold the schedule information of all SIB, the schedule information total length L en of scheduling unit 12 all SIB of calculating _{Total_Sib}

1. calculate length behind each system information block encoding according to following formula:

${\mathrm{Len}}_{\mathrm{Sibi}}=15+B_i+{\log }_2\left(\frac{\mathrm{SIB}\_{\mathrm{REP}}_i}{2}\right)+4\×C_i---\left(2\right)$

Wherein,

2. according to the length behind the following formula calculating MIB block encoding:

${\mathrm{Len}}_{\mathrm{MIB}/\mathrm{SB}1/\mathrm{SB}2}=A+\underset{i=0}{\overset{n}{\mathrm{\Σ}}}{\mathrm{Len}}_{\mathrm{Sibi}}---\left(3\right)$

Wherein,

N is the number of block of information

Wherein,

RNC: be radio network controller (Radio Network controller)

MNC: be mobile network code, MNC (Mobile Network Code)

3. calculate the schedule information total length L en of all SIB according to following formula _{Total_Sib}:

${\mathrm{Len}}_{\mathrm{Total}\_\mathrm{Sib}}=\underset{i=0}{\overset{\mathrm{MaxSib}}{\mathrm{\Σ}}}{\mathrm{Len}}_{\mathrm{Sibi}}---\left(4\right)$

In this step, block of information comprises all system information block SIB, Scheduling Block SB1 and Scheduling Block SB2; The block of information MaxSib that sends comprises all system information block SIB.

Step 302, scheduling unit 12 are judged Len _{Total_Sib}≤ Len _BCHWhether-A sets up; If set up, then execution in step 303; Otherwise, execution in step 304.

Step 303, scheduling unit 12 only need to determine the MIB Scheduling Block just can hold the schedule information of all SIB, execution in step 316.

Step 304, suppose to use MIB and SB1 can hold the schedule information of all SIB, scheduling unit 12 calculates the length L en behind the MIB coding _MIB(schedule information of SB1 is included in the MIB); At first, calculate the length L en after SIB (comprising Scheduling Block SB1) encodes according to above-mentioned formula (2) _SibAccording to above-mentioned formula (3), calculate the length L en after MIB encodes then _MIBIn this step, block of information comprises all system information block SIB and Scheduling Block SB1.

Step 305, scheduling unit 12 calculate the schedule information total length L en of all SIB according to above-mentioned formula (4) _{Total_Sib}In this step, the block of information MaxSib that send comprises all system information block SIB, Scheduling Block MIB and Scheduling Block SB1.

Step 306, scheduling unit 12 calculate the schedule information total length L en of residue SIB _{Leaving1_Sib}Obtain the schedule information total length of the residue SIB except can being contained in the schedule information among the MIB according to following formula.

Len _{Leaving1_Sib}＝Len _{Total_Sib}-Len _MIB (5)

Step 307, scheduling unit 12 are judged Len _{Leaving1_Sib}≤ Len _BCHWhether set up; If set up, then execution in step 308; Otherwise, execution in step 309.

Step 308, scheduling unit 12 need to determine MIB and SB1 Scheduling Block to hold the schedule information of all SIB, execution in step 316.

Step 309, suppose to use MIB, SB1 and SB2 to hold the schedule information of all SIB, scheduling unit 12 is according to the length L en of above-mentioned formula (2) and (3) calculating MIB _MIB(schedule information of Scheduling Block SB1 and SB2 is included in the MIB); In this step, block of information comprises all system information block SIB, Scheduling Block SB1 and Scheduling Block SB2.

Step 310, scheduling unit 12 calculate the length L en of SB1 according to above-mentioned formula (2) and (3) _SB1In this step, block of information comprises all system information block SIB.

Step 311, scheduling unit 12 calculate the schedule information total length L en of all SIB according to above-mentioned formula (4) _{Total_Sib}In this step, the block of information MaxSib that send comprises all system information block SIB, Scheduling Block MIB, Scheduling Block SB1 and Scheduling Block SB2.

Step 312, scheduling unit 12 calculate the schedule information total length L en of residue SIB _{Leaving2_Sib}Obtain the schedule information total length of the residue SIB the schedule information in can being contained in MIB and SB1 according to following formula.

Len _{Leaving2_Sib}＝Len _{Total_Sib}-Len _MIB-Len _SB1 (6)

Step 313, scheduling unit 12 are judged Len _{Leaving2_Sib}≤ Len _BCHWhether set up; If set up, then execution in step 314; Otherwise, execution in step 315.

Step 314, scheduling unit 12 need to determine MIB, SB1 and SB2 Scheduling Block to hold the schedule information of all SIB, execution in step 316.

Step 315, scheduling unit 12 be SB1 and/or SB2 segmentation, need to determine MIB, SB1 and SB2 and SB1 and/or SB2 segmentation to hold the schedule information of all SIB.

Step 316, scheduling unit 12 are determined SIB_POS and the SIB_OFF of host system message block MIB; MIB System Frame Number (System Frame Number, SFN) original position in the sequence period is fixed, promptly the SIB_POS perseverance is 0; In a broadcast cycle,, the be useful on SFN position indication marker of transmitting MIB is " taking " according to the repetition period SIB_REP of MIB.

Step 317, scheduling unit 12 are determined SIB_POS and the SIB_OFF of Scheduling Block SB1, SB2 and each system information block SIBs;

Step 318, transmitting element 13 offer user terminal with the schedule information of all Scheduling Blocks and system information block.

The main implementation procedure of above-mentioned steps 317 is as follows:

1. determine the SIB_POS of each block of information

In the SFN sequence, each system information block and invoking block SB1, SB2 search the room from SFN=2 to its corresponding SIB_REP respectively; If find the room, this position of mark is " taking "; Perhaps, though SFN is occupied, but its remaining space still is large enough to hold this block of information (is a short segmentation if this type of information block is first Segment type of a short complete segment or this block of information), then confirms the SIB_POS of this position for this block of information.

2. determine the offset SIB_OFF of each all segmentation of block of information

According to the resulting SIB_POS of above-mentioned steps, each system information block and invoking block SB1, SB2 respectively from the SIB_POS+2 of correspondence to SIB_REP, in the SFN sequence, search the room of second segmentation, if find the room, then the difference of this room and SIB_POS is designated as the SIB_OFF[1 of second segmentation], then from the position of second segmentation to SIB_REP, begin to look for the 3rd segmentation position, recursion successively is up to the position of having looked for all segmentations.

3. be " taking " with each block of information all station location markers in broadcast cycle

Position SIB_POS+n * the SIB_REP of block of information is labeled as " taking ";

Each segmentation position SIB_POS+n*SIB_REP+SIB_OFF[count with block of information] be labeled as " taking "; Wherein: n=0,1,2 ...,

Count is a segments, from 1 to SEG_COUNT-1.

For scheme two, at first obtain the repetition period of each Scheduling Block and the repetition period that selection scheduling piece parameter value calculation draws each system information block, and calculate each Scheduling Block length according to this repetition period and determine the Scheduling Block that needs, determine each Scheduling Block schedule information relevant then with each system information block.As shown in Figure 4, employing scheme two realizes that the flow process of system information block scheduling is as follows:

The repetition period that step 400, rm-cell 10 obtain MIB, SB1 and SB2, be designated as respectively: MIB_REP, SB1_REP and SB2_REP; The repetition period of supposing other all system information blocks is all identical, is designated as COMMON_REP.

Step 401, scheduling unit 12 are selected the S value;

Original hypothesis only needs Scheduling Block of MIB, calculates COMMON_REP according to following formula:

$S+\underset{i=0}{\overset{\mathrm{MaxSib}}{\mathrm{\Σ}}}(\mathrm{SEG}\_{\mathrm{COUNT}}_i)\≤\mathrm{COMMON}\_\mathrm{REP}/2---\left(7\right)$

That is: Scheduling Block takies the number of SFN and total number sum that all system information blocks take SFN is less than or equal to 1/2nd of the system information block repetition period in the repetition period of system information block.

Wherein, described S represents that the Scheduling Block of needs takies the number of SFN in the repetition period of system information block, the number difference of Scheduling Block, and pairing S is also different, and its computing formula is as follows:

$S=\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{MIB}\_\mathrm{REP}}$ (only needing MIB);

$S=\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{MIB}\_\mathrm{REP}}+\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{SB}1\_\mathrm{REP}}$ (needing MIB and SB1);

$S=\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{MIB}\_\mathrm{REP}}+\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{SB}1\_\mathrm{REP}}+\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{SB}2\_\mathrm{REP}}$ (needing MIB, SB1 and SB2);

$S=\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{MIB}\_\mathrm{REP}}+\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{SB}1\_\mathrm{REP}}\×\mathrm{SB}1\_\mathrm{SEG}\_\mathrm{COUNT}$

$+\frac{\mathrm{COMMON}\_\mathrm{REP}}{\mathrm{SB}2\_\mathrm{REP}}\×\mathrm{SB}2\_\mathrm{SEG}\_\mathrm{COUNT}$

(need MIB, SB1 and SB2, and SB1 and/or SB2 segmentation);

Step 402, scheduling unit 12 calculate COMMON_REP according to above-mentioned formula (7).

Step 403, scheduling unit 12 are calculated length L en behind the Scheduling Block coding according to above-mentioned formula (2) and (3) _MIB

Step 404, scheduling unit 12 are judged Len _MIB/SB1/SB2＞Len _BCHWhether set up; If then return step 401; Otherwise, continue step 405; If Len _MIB＞Len _BCHThen illustrate and in MIB, can't hold all SIB schedule informations, therefore hypothesis needs Scheduling Block MIB and SB1, at this moment, return step 401, reselect the S value and carry it into the new COMMON_REP of calculating in the above-mentioned formula (7), afterwards COMMON_REP is brought into above-mentioned formula (2) and (3) and calculate Len _MIBAnd Len _SB1, and then judge Len _MIBAnd Len _SB1Whether all be less than or equal to Len _BCHIf, Len _MIBAnd Len _SB1All be less than or equal to Len _BCH, need then to determine Scheduling Block MIB and SB1; Otherwise, need to suppose Scheduling Block MIB, SB1 and SB2, repeat above-mentioned steps 401 to step 404, until finding suitable Scheduling Block.

Step 405, scheduling unit 12 are determined SIB_POS and the SIB_OFF of host system message block MIB; The implementation procedure of this step repeats no more with above-mentioned step 316.

Step 406, scheduling unit 12 are determined SIB_POS and the SIB_OFF of Scheduling Block SB1, SB2 and each system information block SIBs; The implementation procedure of this step repeats no more with above-mentioned step 317.

Step 407, transmitting element 13 offer user terminal with the schedule information of all Scheduling Blocks and system information block.

By said system block of information scheduling process as can be seen, employing the present invention is the repetition period of configuration-system block of information as required, thereby can satisfy the particular demands to cell system information; Cause in the pre-configured repetition period under the situation of system information block scheduling failure, adopt the present invention still can guarantee the success of system information block scheduling, like this, both pay the utmost attention to the validity of system information block scheduling, also guaranteed the reliability of system information block scheduling simultaneously.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (17)

1. the method for system information block scheduling in the UMTS system is characterized in that, comprises step:

Judge the availability of all block of information current configuration data, described block of information comprises Scheduling Block and system information block;

When described configuration data can with and system information block scheduling when failure, again according to the definite Scheduling Block that needs of the disabled system information block scheduling scheme of configuration data, and determine the relevant schedule information of each Scheduling Block and each system information block, and described relevant schedule information is offered user terminal;

When described configuration data is unavailable, determines the Scheduling Block of needs according to the disabled system information block scheduling scheme of configuration data, and determine the relevant schedule information of each Scheduling Block and each system information block, and described relevant schedule information is offered user terminal;

Wherein, the disabled system information block scheduling scheme of described configuration data comprises:

The repetition period of the system information block of the Scheduling Block correspondence that obtains setting according to the repetition period and the Scheduling Block parameter value calculation of each Scheduling Block, and calculate the length of the Scheduling Block of setting according to this repetition period, when the length of the Scheduling Block of described setting all is less than or equal to the length of broadcast channel BCH transmission block, the Scheduling Block of setting is defined as the Scheduling Block of needs, otherwise, increase the number of the Scheduling Block of setting, recomputate the length of the Scheduling Block of setting, until finding suitable Scheduling Block, wherein, the Scheduling Block of setting comprises: host system message block (MIB), first Scheduling Block (SB1), and second one or more in the Scheduling Block (SB2).

2. the method for claim 1 is characterized in that, described Scheduling Block comprises host system message block (MIB), first Scheduling Block (SB1) and second Scheduling Block (SB2).

3. method as claimed in claim 2 is characterized in that described configuration data comprises repetition period and segments.

4. method as claimed in claim 3, it is characterized in that, whether be not less than the availability that each system information block and each Scheduling Block take system frame number SFN in the described maximum repetition period total number is judged described configuration data according to 1/2nd of the maximum repetition period in all block of informations, if be not less than, judge that then described configuration data can use; Otherwise, judge that described configuration data is unavailable.

5. method as claimed in claim 4, it is characterized in that, but the described configuration data time spent, according to the repetition period of each system information block, calculate the schedule information total length of the system information block of the Scheduling Block correspondence of setting, and determine the Scheduling Block of needs according to described schedule information total length;

According to the repetition period of each system information block, determine the schedule information of each block of information, wherein, the schedule information of determining each block of information is meant Scheduling Block and the room of each system information block in its corresponding repetition period that search is determined in the system frame number SFN sequence, and when determining that described room is the initial position of block of information, it is labeled as " taking ", and in the repetition period of each block of information correspondence, search the room of subsequent segment, and the room that searches is labeled as " taking " according to described room.

6. method as claimed in claim 5, it is characterized in that, when the Scheduling Block of setting is MIB, when the schedule information total length of all system information blocks is less than or equal to the difference of the length of broadcast channel BCH transmission block and set point, determine that Scheduling Block only needs MIB; Otherwise, the Scheduling Block of setting is updated to MIB and SB1, determine the Scheduling Block that needs by the schedule information total length of the remaining system block of information (SIB) the schedule information of calculating in being contained in MIB.

7. method as claimed in claim 6, it is characterized in that, when the Scheduling Block of setting is MIB and SB1, when the schedule information total length of the residue SIB the schedule information in being contained in MIB is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB and SB1; Otherwise, the Scheduling Block of setting is updated to MIB, SB1 and SB2, determine the Scheduling Block that needs by the schedule information total length of the residue SIB the schedule information of calculating in being contained in MIB and SB1.

8. method as claimed in claim 7, it is characterized in that, when the Scheduling Block of setting is MIB, SB1 and SB2, when the schedule information total length of the residue SIB the schedule information in being contained in MIB and SB1 is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB, SB1 and SB2, otherwise, determine that Scheduling Block is MIB, SB1 and SB2, and SB1 and/or SB2 will carry out segmentation.

9. the method for claim 1, it is characterized in that, the schedule information of determining each block of information is meant search Scheduling Block and the room of each system information block in its corresponding repetition period in the system frame number SFN sequence, and when determining that described room is the initial position of block of information, it is labeled as " taking ", and in the repetition period of each block of information correspondence, search the room of subsequent segment, and the room that searches is labeled as " taking " according to described room.

10. the method for claim 1, it is characterized in that 1/2nd of the described system information block repetition period was not less than Scheduling Block and takies the number of system frame number SFN and the total number sum that all system information blocks take system frame number SFN in the repetition period of system information block.

11. the device of system information block scheduling is characterized in that in the UMTS system, comprising:

Rm-cell is used to manage the configuration data of each block of information, and described block of information comprises Scheduling Block and system information block;

Judging unit is used to judge the availability of each block of information current configuration data, and judged result is exported to scheduling unit;

Scheduling unit, be used for when described configuration data can with and system information block scheduling when failure, again according to the definite Scheduling Block that needs of the disabled system information block scheduling scheme of configuration data, and the relevant schedule information of definite each Scheduling Block and each system information block, when described configuration data is unavailable, determine the Scheduling Block of needs according to the disabled system information block scheduling scheme of configuration data, and determine the relevant schedule information of each Scheduling Block and each system information block;

Transmitting element is used for described relevant schedule information is offered user terminal;

Wherein, scheduling unit is when described configuration data is unavailable, the repetition period that also is used for the system information block of the Scheduling Block correspondence that repetition period and Scheduling Block parameter value calculation according to each Scheduling Block obtain setting, and calculate the length of the Scheduling Block of setting according to this repetition period, when the length of the Scheduling Block of described setting all is less than or equal to the length of broadcast channel BCH transmission block, the Scheduling Block of setting is defined as the Scheduling Block of needs, otherwise, increase the number of the Scheduling Block of setting, recomputate the length of the Scheduling Block of setting, until finding suitable Scheduling Block, wherein, the Scheduling Block of setting comprises: host system message block (MIB), first Scheduling Block (SB1), and second one or more in the Scheduling Block (SB2).

12. device as claimed in claim 11, it is characterized in that, whether described judging unit is not less than the availability that each system information block and Scheduling Block take system frame number SFN in the described maximum repetition period total number is judged described configuration data according to 1/2nd of the maximum repetition period in all block of informations, if be not less than, judge that then described configuration data can use; Otherwise, judge that described configuration data is unavailable.

13. device as claimed in claim 12, it is characterized in that, but described scheduling unit is in the described configuration data time spent, according to the repetition period of each system information block, calculate the schedule information total length of the system information block of the Scheduling Block correspondence of setting, and determine the Scheduling Block of needs according to described schedule information total length; And, according to the repetition period of each system information block, determine the schedule information of each block of information, wherein, the schedule information of determining each block of information is meant Scheduling Block and the room of each system information block in its corresponding repetition period that search is determined in the system frame number SFN sequence, and when determining that described room is the initial position of block of information, it is labeled as " taking ", and in the repetition period of each block of information correspondence, search the room of subsequent segment, and the room that searches is labeled as " taking " according to described room.

14. device as claimed in claim 13, it is characterized in that, when the Scheduling Block of setting is MIB, when described scheduling unit is less than or equal to the difference of the length of broadcast channel BCH transmission block and set point at the schedule information total length of all system information blocks, determine that Scheduling Block only needs MIB; Otherwise, the Scheduling Block of setting is updated to MIB and SB1, determine the Scheduling Block that needs by the schedule information total length of the residue SIB the schedule information of calculating in being contained in MIB.

15. device as claimed in claim 14, it is characterized in that, when the Scheduling Block of setting is MIB and SB1, when the schedule information total length of the residue SIB of described scheduling unit described schedule information in being contained in MIB is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB and SB1; Otherwise, the Scheduling Block of setting is updated to MIB, SB1 and SB2, determine the Scheduling Block that needs by the schedule information total length of the residue SIB the schedule information of calculating in being contained in MIB and SB1.

16. device as claimed in claim 15, it is characterized in that, when the Scheduling Block of setting is MIB, SB1 and SB2, when the schedule information total length of the residue SIB the schedule information in being contained in MIB and SB1 is less than or equal to the length of broadcast channel BCH transmission block, determine that Scheduling Block needs MIB, SB1 and SB2, otherwise, determine that Scheduling Block is MIB, SB1 and SB2, and SB1 and/or SB2 will carry out segmentation.

17. device as claimed in claim 11, it is characterized in that, described scheduling unit is when the repetition period of computing system block of information, and 1/2nd of the described system information block repetition period was not less than Scheduling Block and takies the number of system frame number SFN and the total number sum that all system information blocks take system frame number SFN in the repetition period of system information block.

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