CN103152830A - System information transmission method and system information transmission device - Google Patents
System information transmission method and system information transmission device Download PDFInfo
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- CN103152830A CN103152830A CN2013100370038A CN201310037003A CN103152830A CN 103152830 A CN103152830 A CN 103152830A CN 2013100370038 A CN2013100370038 A CN 2013100370038A CN 201310037003 A CN201310037003 A CN 201310037003A CN 103152830 A CN103152830 A CN 103152830A
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- 230000007774 longterm Effects 0.000 abstract description 3
- 238000010295 mobile communication Methods 0.000 abstract description 3
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- 238000004590 computer program Methods 0.000 description 7
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Abstract
The invention relates to the technical field of mobile communication, and particularly relates to a system information (SI) transmission method and an SI transmission device. The SI transmission method and the SI transmission device are used for solving the problems that specific system information blocks (SIBs) contained in each piece of SI can not be determined when SI transmission is performed between a long term evolution (LTE) base station and user equipment (UE), and SI transmission efficiency is caused to be low in the prior art. The SI transmission method includes that the SIBs contained in each piece of the SI sent on downlink wireless resources are determined according to the size of downlink wireless resource occupied by each determined SIB needing to be sent, and the size of downlink wireless resource used for sending the SI; and each piece of the SI containing the determined SIBs is sent, and therefore the specific SIBs contained in each piece of the SI can be timely determined when the SI transmission is needed to be performed between the STE base station and the UE, and the SI transmission efficiency is improved.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of method and device of system information.
Background technology
Third generation affiliate (3rd Generation Partnership Project according to mobile communication, 3GPP) the regulation of the protocol specification 3GPP TS36.331 of standardization body's proposition: Long Term Evolution (Long Term Evolution, LTE) base station and user terminal (User Equipment, UE) between aloft the system message of wave point be divided into three classes, be respectively:
The first kind: Master Information Block (MasterInformationBlock, MIB), MIB comprises limited most important, system parameters the most frequently, these parameters are most important to the other system parameter that obtains the residential quarter, therefore MIB is carried on proprietary Physical Broadcast Channel PBCH, its scheduling mode is all fixed on time domain and frequency domain, take 40ms as the cycle, and repeats to send within this cycle; The transmission for the first time of MIB is arranged in the upper transmission of 0 work song frame (#0) of the radio frames that satisfies system frame number SFN mod4=0, and MIB repeats to send on the subframe # 0 of other radio frames of 40ms in the cycle;
Equations of The Second Kind: system information block type 1 (SystemInformationBlockType1, SIB1), the scheduling mode of SIB1 is fixed on time domain, take 80ms as the cycle, and in 80ms repeated broadcast; SIB1 transmits on the subframe #5 of the radio frames that satisfies system frame number SFN mod8=0 for the first time, and repeats to send on the subframe #5 of the radio frames that satisfies system frame number SFN mod2=0;
The 3rd class: remaining system information block (SystemInformationBlock, SIB), mainly contain SIB2～SIB13, the information that these block of informations comprise is as follows:
SIB2: the information that comprises public shared channel;
SIB3: comprising cell reselection information, is mainly the information relevant with Serving cell;
SIB4: the service frequency information relevant with homogeneous frequency adjacent area when comprising cell reselection comprises the specific reselecting parameters of reselecting parameters public on a frequency and residential quarter;
SIB5: (the Evolved Universal Terrestrial Radio Access of other evolved universal terrestrial wireless access when comprising cell reselection, E-UTRA) information of neighbor cell between frequency and frequency, comprise the specific reselecting parameters of reselecting parameters public on a frequency and residential quarter;
SIB6: the information of UTRA frequency and the adjacent lower decorrelation of UTRA when comprising cell reselection comprises the specific reselecting parameters of reselecting parameters public on a frequency and residential quarter;
SIB7: the information of GERAN frequency dependence when comprising cell reselection comprises the specific reselecting parameters of reselecting parameters public on a frequency and residential quarter;
SIB8: the relevant information in residential quarter that when comprising cell reselection, the CDMA2000 frequency is adjacent with CDMA2000 comprises the specific reselecting parameters of reselecting parameters public on a frequency and residential quarter;
SIB9: the title that the eNodeB of family is provided;
SIB10: the main announcement information that earthquake, tsunami warning system are provided;
SIB11: the less important announcement information of earthquake, tsunami warning system is provided, supports segment transmissions;
SIB12: provider's UE warning information;
SIB13: provide to obtain and one or more MBSFN relevant MBMS control informations in zone.
Above three type systematic message will on time domain or frequency domain, be carried out periodic scheduling in dynamic or static mode by the base station end and send.
Regulation according to 3GPP TS36.331Release9: SIB2～SIB13 need to be mapped to SystemInformation (SI) and carry out dynamic dispatching, be that these SIB are carried by SI, SIB can carry out flexible configuration by the dispatch list (SchedulingInfoList) that comprises in SIB1 to the mapping of SI, SIB1 and all SI are in the upper transmission of DSCH Downlink Shared Channel (DL-SCH), wherein, the dynamic dispatching of SI need abide by the principle:
1) each SIB can only be included in a SI, and the SIB that only has identical dispatching cycle just can be mapped in same SI;
2) SIB2 always is mapped to first entry of corresponding SI list in the SI-1 schedule information, and whenever all must exist;
3) may there be a plurality of SI to send with the identical cycle;
4) comprise the transmission cycle of SI length of window (si-windowLen) and each SI in SIB1, the si-windowLen of all SI is identical;
5) each SI is related with a si-windowLen, and the window non-overlapping copies of different SI that is to say, in a si-windowLen, only sends corresponding SI, and initial transmission and re-transmission are all carried out in a window;
6) except the subframe #5 of the radio frames of MBSFN subframe, TDD sub-frame of uplink and SFN mod2=0, the initial transmission of SI and retransmitting is all carried out in the SI window;
7) only have and all dispatched before the subframe #5 in the radio frames of SFN mod2=0 as all SI, si-windowLen could be configured to 1ms.For the TDD standard, just satisfy this condition when only having a SI to dispatch.
But existing technology does not define a SI and specifically which SIB is made of, if do not determine the formation of SI, just may cause the efficient of system transmissions SI lower.
To sum up, prior art also can't determine to carry out between LTE base station and UE SI when transmission, and a SI specifically which SIB is made of, and the efficient that causes transmitting SI is lower.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of system information, and in the time of also can't determining to carry out between LTE base station and UE the SI transmission in order to solve prior art, a SI specifically which SIB is made of, and causes transmitting the lower problem of efficient of SI.
The method of a kind of system information SI that the embodiment of the present invention provides comprises:
The downlink radio resource size that each the system information block SIB that sends as required takies and be used for sending the downlink radio resource size of SI, the SIB that each SI that determines to send on downlink radio resource comprises;
Transmission comprises each SI of definite SIB.
Preferably, the resource size that takies according to each SIB that determines and being used for sends the size of the downlink radio resource of SI, and the SIB that each SI that determines to send on downlink radio resource comprises comprises:
Different SIB is formed a SI, make the resource summation that all SIB of comprising in a SI take be less than or equal to described downlink radio resource size for sending SI, and after each SI that makes composition added other any SIB that is not included in this SI again, its size all can surpass the size of described downlink radio resource for sending SI; Wherein, same SIB only is included in a SI.
Preferably, different SIB is formed a SI, makes the resource summation that all SIB of comprising in a SI take be less than or equal to described downlink radio resource size for sending SI, comprising:
According to SIB sequence number order from small to large, the resource that different SIB take is added up, all SIB that the resource summation size after cumulative are less than or equal to described downlink radio resource size for sending SI form a SI.
The device of a kind of system information SI that the embodiment of the present invention provides comprises:
Determination module is used for the resource size that takies according to each system information block SIB that the needs of determining send and is used for sending the downlink radio resource size of SI, the SIB that each SI that determines to send on downlink radio resource comprises;
Sending module is used for sending each SI that comprises definite SIB.
Preferably, described determination module specifically is used for:
Different SIB is formed a SI, make the resource summation that all SIB of comprising in a SI take be less than or equal to described downlink radio resource size for sending SI, and after each SI that makes composition added other any SIB that is not included in this SI again, its size all can surpass the size of described downlink radio resource for sending SI; Wherein, same SIB only is included in a SI.
Preferably, described determination module specifically is used for:
According to SIB sequence number order from small to large, the resource that different SIB take is added up, all SIB that the resource summation size after cumulative are less than or equal to described downlink radio resource size for sending SI form a SI.
The resource size that each system information block SIB that the needs that embodiment of the present invention basis is determined send takies and big or small for the downlink radio resource that sends SI, the SIB that each SI that determines to send on downlink radio resource comprises, and transmission comprises each SI of definite SIB, thereby in the time of can needing to carry out the SI transmission between LTE base station and UE, determine in time a SI specifically which SIB is made of, improved the efficient of transmission SI.
Description of drawings
The method flow diagram of the transmission SI that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is system information transmissions schematic diagram when distributing identical dispatching cycle to SI-1 with SI-2;
Fig. 3 is system information transmissions schematic diagram when distributing different dispatching cycles to SI-1 with SI-2;
Fig. 4 is the method flow diagram of preferred embodiment transmission SI of the present invention;
The structure drawing of device of the transmission SI that Fig. 5 provides for the embodiment of the present invention.
Embodiment
The resource size that each system information block SIB that the needs that embodiment of the present invention basis is determined send takies and big or small for the downlink radio resource that sends SI, determine the SIB that each SI comprises, and send each SI, thereby in the time of can determining to carry out between LTE base station and UE the SI transmission, the concrete corresponding relation of SI and SIB.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 1, the method flow diagram of the transmission SI that provides for the embodiment of the present invention comprises the following steps:
S101: the downlink radio resource size that each SIB that sends as required takies and be used for sending the downlink radio resource size of SI, the SIB that each SI that determines to send on downlink radio resource comprises;
S102: send each SI that comprises definite SIB.
In specific implementation process, the size of the downlink radio resource that each SIB that the embodiment of the present invention can send as required takies and can be used for sends the size of the downlink radio resource of SI, determine which SIB to form a SI by, afterwards, send the SI that is formed by SIB.The downlink radio resource size that each SIB takies can be known, also can determine by the embodiment of the present invention; Downlink radio resource in the embodiment of the present invention can be specially descending wireless sharing channel resource.Here, the executive agent of the embodiment of the present invention can be base station or the network equipment independently.
Preferably, in step S101, determine according to following steps the resource size that each SIB takies:
Respectively each SIB is encoded, determine the code stream length of each SIB after coding, and the resource size that described code stream length is taken as corresponding SIB.
In specific implementation process, can be according to defining to the ASN.1 coding structure of SIB13 about SIB2 in 3GPP TS36.331Release9 agreement, the SIB type of supporting for concrete LTE system, respectively each SIB is encoded, and obtain code stream length after coding, this code stream length namely can be used to the Radio Resource size that represents that SIB takies.
Preferably, in step S101, be identified for sending the size of the downlink radio resource of SI according to following steps:
Determine affect the parameter value that SI takies resource, be identified for sending the size of the downlink radio resource of SI according to definite parameter value.
In specific implementation process, can at first find out affects the parameter that SI takies resource, and the size that can be used for the downlink radio resource of transmission SI definite according to these parameters; Here, affecting parameter that SI takies resource can comprise and affect the parameter that SI takies time-domain resource, as a wireless resource block (Resource Block, the number of time slots of RB) dividing on time domain at the size of OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbol numbers corresponding on time domain, modulation symbol efficiency value, wireless sub-frame etc.; Also can comprise and affect the parameter that SI takies frequency domain resource, the number of sub carrier wave of RB number as corresponding in different downlink bandwidths, RB correspondence on frequency domain can also comprise the uplink-downlink configuration ratio, be used for sending the downlink radio resource of SI in the percentage equal proportion parameter of whole available downlink radio resource.
Preferably, the parameter value of size that is identified for sending the downlink radio resource of SI comprises: the downlink radio resource that is used for sending SI accounts for the percentage N of all downlink radio resource
Ratio, the orthogonal frequency division multiplex OFDM symbol numbers N of wireless resource block RB correspondence on time domain
cp, modulation symbol efficiency value N
eff, the RB number that downlink bandwidth is corresponding
Preferably, be identified for sending the size of the downlink radio resource of SI according to the parameter value of determining, comprise: the size of determining to be used in a wireless sub-frame to send the downlink radio resource of SI according to following formula
Wherein, M refers to the number of sub carrier wave of RB correspondence on frequency domain, and K refers to the number of time slots that a wireless sub-frame is divided on time domain, and L refers to that front L the OFDM symbol of a wireless sub-frame on time domain can not be used for transmission SI;
In above-mentioned formula, what determine is the size that is used for the downlink radio resource of transmission SI in a wireless sub-frame, in the specific implementation process of the embodiment of the present invention, total wireless sub-frame number that available actual downstream wireless sharing channel resource comprises multiply by and adopts above-mentioned formula to obtain
Obtain the size that actual total can be used for sends the downlink radio resource of SI.
Here, RB corresponding OFDM symbol numbers on time domain is that the cyclic prefix type during that configures with concrete LTE system is corresponding, for the regular circulation prefix, and a RB corresponding 7 OFDM symbols on time domain, for extended cyclic prefix, a RB corresponding 6 OFDM symbols on time domain; The modulation symbol efficiency value here represents carry-on information bit of modulation symbol on average meaning, also namely after the expense of having considered reference signal and control character, and a modulation symbol, i.e. Resource Unit, carry-on information bit.In the situation that the downlink bandwidth that different LTE system supports is different, the RB number that wireless sub-frame configures on frequency domain is not identical, as shown in table 1 yet, is the RB number corresponding from different downlink bandwidths
| Channel width unit [MHz] 1.4 | 3 | 5 | 10 | 15 | 20 |
| RB number: 6 | 15 | 25 | 50 | 75 | 100 |
Table one
In specific implementation process, the number of sub carrier wave M=12 of RB correspondence on frequency domain, the number of time slots K=2 that wireless sub-frame is divided on time domain, front L=3 the OFDM symbol of a wireless sub-frame on time domain can not be used for transmission SI; Because the concrete operable downlink radio resource of LTE system is limited, need to be identified for transmitting according to actual conditions the percentage N of downlink radio resource in whole descending usable radio resources of SI
Ratio
Preferably, in step S101, the resource size that takies according to each SIB that determines and being used for sends the size of the downlink radio resource of SI, and the SIB that each SI that determines to send on downlink radio resource comprises comprises:
Different SIB is formed a SI, the resource summation that all SIB of comprising in a SI take is less than or equal to for the downlink radio resource size that sends SI, and after each SI that makes composition added other any SIB that is not included in this SI again, its size all can surpass the size of the downlink radio resource that is used for transmission SI; Wherein, same SIB only is included in a SI.
In specific implementation process, when determining a SI which SIB is made of, make the number of SI minimum as far as possible, namely make a SI comprise more SIB under the prerequisite that is less than or equal to the Radio Resource that can be used for sending SI as far as possible, when guaranteeing successfully to send SI, avoid the waste of Radio Resource;
For base station side, if the SIB number that comprises in SI very little, need the number of the SI that sends to increase, so both caused the waste of Radio Resource, increased again the scheduling complexity of bottom, very easily affect the transmission of other business datum in shared channel, increased the burden of whole LTE system, but, if the SIB number that comprises in SI is too many, sending a shared Radio Resource of SI can be very large, might cause surpassing the size that this can be used for sending the Radio Resource of SI constantly, thereby cause the base station to send the SI failure; For user terminal (User Equipment, UE) side, if the number of SI is too much, that is, the SIB number that comprises in SI is very few, UE receive time of all SIB can be very long, thereby have a strong impact on the efficient that UE receives SI; Use the embodiment of the present invention guaranteeing that resource that a SI takies be less than or equal under the prerequisite of the Radio Resource that can be used for sending SI, namely guaranteeing under the condition that SI successfully sends, make a SI comprise more SIB as far as possible, thereby saved Radio Resource, improved the efficient of UE reception SIB.
Preferably, different SIB is formed a SI, the resource summation that all SIB of comprising in a SI take is less than or equal to for the downlink radio resource size that sends SI, comprising:
According to SIB sequence number order from small to large, the resource that different SIB take is added up, all SIB that the resource summation size after cumulative is less than or equal to for the downlink radio resource size that sends SI form a SI.
In specific implementation process, due to sequence number the preceding SIB with respect to sequence number after the entrained information of SIB more important, therefore, in the embodiment of the present invention, make as far as possible sequence number the preceding SIB than sequence number after SIB send in advance, the below is elaborated to the process that is made of SI different SIB, here adopt the SibSumLen function representation ask cumulative to a plurality of SIB and, the code stream length that represents different SIB with sibn-len, wherein, n is the sequence number of SIB, and span is 2-13, is assigned to a SIB in SI and need to meets following formula:
at definite first SI, when being SI-1, sequence number from small to large the order of code stream length corresponding to each SIB according to SIB added up, the SIB that satisfies above-mentioned formula is combined into SI-1, and after the SI-1 that makes composition added other any SIB that is not included in this SI-1 again, its size all can surpass the size of the downlink radio resource that is used for transmission SI, be also, according to SIB sequence number order from small to large ask for the cumulative of code stream length corresponding to different SIB and, if when being added to code stream length corresponding to certain SIB, the code stream length that this SIB is corresponding join cumulative and in satisfy above-mentioned formula, this code stream length is retained in cumulative and in, and this SIB is joined in SI-1, if when being added to code stream length corresponding to certain SIB, the code stream length that this SIB is corresponding join cumulative and in can't satisfy above-mentioned formula, this is not satisfied code stream length corresponding to the SIB of above-mentioned formula from cumulative and rejecting, and continue to select the code stream length corresponding to SIB of Next Sequence to add up, until travel through all SIB.Such as, satisfy above-mentioned formula after code stream length addition corresponding to SIB2 and SIB3, but no longer satisfy above-mentioned formula after code stream length addition corresponding to SIB2, SIB3 and SIB4, also namely add up and surpassed the Radio Resource size that can be used for sending SI, from cumulative and reject code stream length corresponding to SIB4, and continue to calculate the cumulative of SIB2, SIB3 and code stream length corresponding to SIB5 and, determine whether SIB5 can join in SI-1, so, until travel through all SIB, determine to comprise in SI-1 the composition of SIB number SI-1 when maximum.
At definite second SI, when being SI-2, the SIB that is not included in SI-1 is added up by sequence number order from small to large, process with above-mentioned definite SI-1 is similar, the SIB that satisfies above-mentioned formula is combined into SI-2, and after making the SIB that adds again in the SI-2 of composition in other any SI-1 of not being included in and this SI-2, its size all can surpass the size of the downlink radio resource that is used for sending SI; Such as, the SI-1 that determines is comprised of SIB2, SIB3 and SIB5, determine whether satisfy above-mentioned formula after code stream length addition corresponding to SIB4 and SIB6, if determine to satisfy above-mentioned formula, continue SIB4, SIB6 and code stream length addition corresponding to SIB7, so, all SIB the SIB that comprises in SI-1 of traversal determine to comprise in SI-2 the composition of SIB number SI-2 when maximum.
According to similar step, determine the SIB that each SI comprises, until all SIB are when being mapped to separately a unique SI, finish the anabolic process to SIB, at this moment, also just can determine the number of the SI that need to send, the number of definite SI can be used for calculating the summation of the length of window of all SI.
Preferably, step S102 also comprises before sending and comprising each SI of definite SIB:
Determine the length of window of each SI;
According to the length of window of determining, give each SI allocation schedule cycle;
Transmission comprises each SI of definite SIB, can comprise:
Send each SI that comprises definite SIB according to described length of window and dispatching cycle.
Here, the length of window indication of SI sends the concrete time span of SI, refer to send the time interval of SI dispatching cycle, wherein, the length of window of SI can be got 1ms, 2ms, to 40ms, can get 8 radio frames to 512 radio frames the dispatching cycle of SI, in specific implementation process, can be different identical or different dispatching cycles of SI distribution, and identical length of window.
Ascending-descending subframes number and uplink-downlink configuration sequence number N in a radio frames
dlCorresponding, table two is under the TDD standard, the corresponding relation of uplink-downlink configuration sequence number and ascending-descending subframes configuration, downstream-to-upstream switching cycle; In table, D represents a descending sub frame in radio frames, and U represents a sub-frame of uplink in radio frames, and S represents a special subframe in radio frames.
Table two
in specific implementation process, the type that can be used for the wireless sub-frame of transmission SI is conditional, single-frequency network transmission mode (Multicast Broadcast Single Frequency Network wherein, MBSFN) subframe, time division duplex (Time Division Duplexing, TDD) sub-frame of uplink, and the 5th work song frame of the radio frames of SFN mod2=0 can not be used for scheduling SI, therefore, the length of window of the SI that the embodiment of the present invention is distributed is more than or equal to the minimum window length value of the different uplink-downlink configuration sequence numbers of correspondence, as shown in Table 3, be minimum window length value corresponding to different uplink-downlink configuration sequence numbers.
| |
0 | 1 | 2 | 3 | 4 | 5 | 6 |
| The minimum window length value | 10ms | 5ms | 5ms | 5ms | 5ms | 5ms | 5ms |
Table three
Preferably, according to the length of window of determining, give each SI allocation schedule cycle, comprising:
Give dispatching cycle that each SI distributes the summation more than or equal to the length of window of all SI that need to send.
In specific implementation process, for guaranteeing the scheduling window non-overlapping copies of different SI, can make the dispatching cycle of distributing to each SI more than or equal to the summation of the length of window of all SI that need to send, also namely, make dispatching cycle si-Periodicity and the numerical value of length of window si-windowLen satisfy following formula:
Min[(si-Periodicity)
i]≥Sum[(si-windowLen)
j]/10
Wherein, Min[(si-Periodicity)
i] refer within the cycle that meets 3GPP TS36.331 agreement regulation, by dispatching cycle minimum in all SI of embodiment of the present invention distribution, and Sum[(si-windowLen)
j]/10 refer to the summation of the length of window of all SI; I and j are the scheduling sequence number of SI, and because the length of window of each SI is identical, the length of window of single SI multiply by the number of the SI that needs transmission, is the summation of the length of window of all SI.The dispatching cycle here, length of window was take ms as unit take radio frames as unit, and 1 radio frames is 10ms, therefore used Sum[(si-windowLen in above-mentioned formula)
j] divided by 10 with the comparison of carrying out the dispatching cycle of minimum on numerical value.Such as, can be 8 radio frames for SI-1 and SI-2 allocation schedule cycle, because a radio frames is 10ms, the length of window of different SI is identical, for the window that guarantees SI-1 and SI-2 not overlapping, the length of window of distributing need to be less than or equal to 40ms, when the length of window for SI-1 and SI-2 distribution is 40ms, SI-1 is sent on 0-3 radio frames of every 8 radio frames, SI-2 is sent on 4-7 radio frames of every 8 radio frames, make the window of SI-1 and SI-2 not overlapping; Can also be 8 radio frames for the SI-1 allocation schedule cycle, for the SI-2 allocation schedule cycle is 16 radio frames, for the window that guarantees SI-1 and SI-2 not overlapping, the summation of the SI-1 that distributes and the length of window of SI-2 can not be greater than 80ms, and the length of window that also is SI-1 and SI-2 distribution still needs to be less than or equal to 40ms.As shown in Figure 2, system information transmissions schematic diagram when distributing identical dispatching cycle with SI-2 for SI-1, be 8 radio frames the dispatching cycle for SI-1 and SI-2 distribution in figure, radio frame number is 0-7, length of window is 40ms, dispatching cycle, 8 radio frames equaled the summation 80ms of SI-1 and SI-2 length of window, can make the window of SI-1 and SI-2 not overlapping; Fig. 3 is system information transmissions schematic diagram when distributing different dispatching cycles to SI-1 with SI-2, in Fig. 3, be 8 radio frames the dispatching cycle of distributing to SI-1, be 16 radio frames the dispatching cycle of distributing to SI-2, radio frame number is 0-15, the length of window of distributing for SI-1 and SI-2 is all 40ms, and in SI-1 and SI-2, minimum 8 radio frames dispatching cycle equal the summation 80ms of SI-1 and SI-2 length of window, also can make the window of SI-1 and SI-2 not overlapping.
Preferably, according to length of window and the dispatching cycle of each SI that determines sending each SI that comprises definite SIB, comprising:
According to length of window and the dispatching cycle of each SI that determines, the sequence number size according to the SIB that comprises in each SI sends each SI that comprises definite SIB.
in specific implementation process, for make as far as possible sequence number the preceding SIB than sequence number after SIB send in advance, can make the scheduling sequence number of the sequence number SI that SIB is corresponding the preceding also front, such as, the SIB that comprises in the SI-1 that distributes is SIB2, SIB3, SIB5, the SIB that comprises in the SI-2 that distributes is SIB4, SIB6, SIB8, the SIB that comprises in the SI-3 that distributes is SIB7, SIB9, SIB10, because the SIB of the sequence number minimum that comprises in SI-1 is SIB2, the SIB of the sequence number minimum that comprises in SI-2 is SIB4, the SIB of the sequence number minimum that comprises in SI-3 is SIB7, according to SI-1, the sequence number order from small to large of the SIB of the sequence number minimum that SI-2 and SI-3 comprise, send SI, also namely at first send SI-1, then send SI-2, send at last SI-3.
In specific implementation process, can distribute identical periodic quantity for all SI, also can meet for one of each SI Random assignment the periodic quantity of 3GPP TS36.331 agreement regulation, due to the sequence numbers such as SIB2 the preceding SIB than other sequence number after the entrained information of SIB more important, for make as far as possible sequence number the preceding SIB send in advance at rear SIB than sequence number, can for the scheduling sequence number after the SI distribution ratio scheduling sequence number larger periodic quantity of SI the preceding.Also namely, the dispatching cycle of distributing to each SI, the scheduling sequence number according to SI increased progressively successively, wherein, sequence number the preceding the SIB of the sequence number minimum that comprises of SI sequence number than sequence number after the sequence number of SIB of the sequence number minimum that comprises of SI little.As, the periodic quantity of distributing for SI-1 can be meet 3GPPTS36.331 agreement regulation, greater than the periodic quantity Ceil (Sum[(si-windowLen) of the minimum of the length of window summation of all SI
j]/10), can get minimum periodic quantity as the cycle of SI-2 in the periodic quantity greater than SI-1, so, scheduling sequence number according to SI, be each SI assignment period value, if the number of SI has surpassed available periodic quantity number, for the sequence number that exceeds after SI distribute the periodic quantity of available maximum.
As shown in Figure 4, the method flow diagram for preferred embodiment transmission SI of the present invention comprises:
S401: respectively each SIB is encoded, determine the code stream length of each SIB after coding, and be identified for sending the size of the downlink radio resource of SI;
Here, can determine in a wireless sub-frame to be used for to send according to following formula the size of the downlink radio resource of SI
Wherein, N
cpThe orthogonal frequency division multiplex OFDM symbol numbers that represents wireless resource block RB correspondence on time domain, N
effExpression OFDM symbol efficiency value,
RB number corresponding to expression downlink bandwidth, M refers to the number of sub carrier wave of RB correspondence on frequency domain, and K refers to the number of time slots that a wireless sub-frame is divided on time domain, and L refers to that front L the OFDM symbol of a wireless sub-frame on time domain can not be used for transmission SI.
S402: the code stream length corresponding according to each SIB that determines and being used for sends the size of the downlink radio resource of SI, the SIB that each SI that determines to send on downlink radio resource comprises;
In concrete enforcement, different SIB is formed a SI, the resource summation that all SIB of comprising in a SI are taken, the summation of the code stream length that also namely all SIB are corresponding, be less than or equal to for the downlink radio resource size that sends SI, and after each SI that makes composition added other any SIB that is not included in this SI again, its size all can surpass the size of the downlink radio resource that is used for transmission SI; Wherein, each SIB only is included in a SI;
particularly, for a SI, can be not included in other SI SIB according to SIB sequence number order from small to large ask for the cumulative of code stream length corresponding to different SIB and, if when being added to code stream length corresponding to certain SIB, the code stream length that this SIB is corresponding join cumulative and in satisfy above-mentioned formula, this code stream length is retained in cumulative and in, and this SIB is joined in this SI, if when being added to code stream length corresponding to certain SIB, the code stream length that this SIB is corresponding join cumulative and in can't satisfy above-mentioned formula, this is not satisfied code stream length corresponding to the SIB of above-mentioned formula from cumulative and rejecting, and continue to select the code stream length corresponding to SIB of Next Sequence to add up, until traversal is not included in all SIB in other SI.
S403: after determining the SIB that each SI comprises, determine to distribute to length of window and the dispatching cycle of each SI;
In specific implementation process, distribute to the length of window of each SI more than or equal to the minimum window length value of the different uplink-downlink configuration sequence numbers of correspondence, for guaranteeing the sequence number priority scheduling of SIB the preceding, can for the scheduling sequence number after the SI distribution ratio scheduling sequence number larger periodic quantity of SI the preceding.
S404: according to the length of window of determining with send each SI that comprises definite SIB dispatching cycle.
Based on same inventive concept, a kind of device of the system information corresponding with the method for system information also is provided in the embodiment of the present invention, because the principle of this device solves problem is similar to the method for embodiment of the present invention system information, therefore the enforcement of this device can referring to the enforcement of method, repeat part and repeat no more.
As shown in Figure 5, the structure drawing of device of the transmission SI that provides for the embodiment of the present invention comprises:
Sending module 52 is used for sending each SI that comprises definite SIB.
Preferably, determination module 51 specifically is used for,
Respectively each SIB is encoded, determine the code stream length of each SIB after coding, and the resource size that described code stream length is taken as corresponding SIB.
Preferably, determination module 51 specifically is used for,
Determine affect the parameter value that SI takies resource, be identified for sending the size of the downlink radio resource of SI according to definite parameter value.
Preferably, determination module 51 specifically is used for, and is identified for sending the size of the downlink radio resource of SI according to following parameter:
The downlink radio resource that is used for transmission SI accounts for the percentage N of all downlink radio resource
Ratio, the orthogonal frequency division multiplex OFDM symbol numbers N of wireless resource block RB correspondence on time domain
cp, modulation symbol efficiency value N
eff, the RB number that downlink bandwidth is corresponding
Preferably, determination module 51 specifically is used for: determine that according to following formula a wireless sub-frame is used for the size of the downlink radio resource of transmission SI
Wherein, M refers to the number of sub carrier wave of RB correspondence on frequency domain, and K refers to the number of time slots that a wireless sub-frame is divided on time domain, and L refers to that front L the OFDM symbol of a wireless sub-frame on time domain can not be used for transmission SI.
Preferably, determination module 51 specifically is used for:
Different SIB is formed a SI, make the resource summation that all SIB of comprising in a SI take be less than or equal to described downlink radio resource size for sending SI, and after each SI that makes composition added other any SIB that is not included in this SI again, its size all can surpass the size of described downlink radio resource for sending SI; Wherein, same SIB only is included in a SI.
Preferably, determination module 51 specifically is used for:
According to SIB sequence number order from small to large, the resource that different SIB take is added up, all SIB that the resource summation size after cumulative are less than or equal to described downlink radio resource size for sending SI form a SI.
Preferably, determination module 51 also is used for:
Before sending module 52 sends SI, determine the length of window of each SI; According to the length of window of determining, give each SI allocation schedule cycle;
Sending module 52 specifically is used for:
The length of window definite according to determination module and transmission dispatching cycle comprise each SI of the definite SIB of determination module 51.
Preferably, determination module 51 specifically is used for: give dispatching cycle that each SI distributes the summation more than or equal to the length of window of all SI that need to send.
Preferably, sending module 52 specifically is used for:
According to length of window and the dispatching cycle of each SI that determines, the sequence number size according to the SIB that comprises in each SI sends each SI that comprises the definite SIB of determination module 51.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is that reference is described according to flow chart and/or the block diagram of method, device (system) and the computer program of the embodiment of the present invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of realizing in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction of carrying out on computer or other programmable devices.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of claim of the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (20)
1. the method for a system information SI, is characterized in that, the method comprises:
The downlink radio resource size that each the system information block SIB that sends as required takies and be used for sending the downlink radio resource size of SI, the SIB that each SI that determines to send on downlink radio resource comprises;
Transmission comprises each SI of definite SIB.
2. the method for claim 1, is characterized in that, determines according to following steps the resource size that each SIB takies:
Respectively each SIB is encoded, determine the code stream length of each SIB after coding, and the resource size that described code stream length is taken as corresponding SIB.
3. the method for claim 1, is characterized in that, is identified for sending the size of the downlink radio resource of SI according to following steps:
Determine affect the parameter value that SI takies resource, be identified for sending the size of the downlink radio resource of SI according to definite parameter value.
4. method as claimed in claim 3, is characterized in that, described parameter value comprises the percentage N that accounts for all downlink radio resource for the downlink radio resource that sends SI
Ratio, the orthogonal frequency division multiplex OFDM symbol numbers N of wireless resource block RB correspondence on time domain
cp, modulation symbol efficiency value N
eff, the RB number that downlink bandwidth is corresponding
5. method as claimed in claim 4, is characterized in that, is identified for sending the size of the downlink radio resource of SI according to the parameter value of determining, comprising: the size of determining to be used in a wireless sub-frame to send the downlink radio resource of SI according to following formula
Wherein, M refers to the number of sub carrier wave of RB correspondence on frequency domain, and K refers to the number of time slots that a wireless sub-frame is divided on time domain, and L refers to that front L the OFDM symbol of a wireless sub-frame on time domain can not be used for transmission SI.
6. described method as arbitrary in claim 1-5, is characterized in that, the resource size that takies according to each SIB that determines and being used for sends the size of the downlink radio resource of SI, and the SIB that each SI that determines to send on downlink radio resource comprises comprises:
Different SIB is formed a SI, make the resource summation that all SIB of comprising in a SI take be less than or equal to described downlink radio resource size for sending SI, and after each SI that makes composition added other any SIB that is not included in this SI again, its size all can surpass the size of described downlink radio resource for sending SI; Wherein, same SIB only is included in a SI.
7. method as claimed in claim 6, is characterized in that, different SIB is formed a SI, makes the resource summation that all SIB of comprising in a SI take be less than or equal to described downlink radio resource size for sending SI, comprising:
According to SIB sequence number order from small to large, the resource that different SIB take is added up, all SIB that the resource summation after cumulative are less than or equal to described downlink radio resource size for sending SI form a SI.
8. the method for claim 1, is characterized in that, transmission also comprises before comprising each SI of definite SIB:
Determine the length of window of each SI;
According to the described length of window of determining, give each SI allocation schedule cycle;
Transmission comprises each SI of definite SIB, comprising:
Send each SI that comprises definite SIB according to described length of window and dispatching cycle.
9. method as claimed in claim 8, is characterized in that, according to the described length of window of determining, gives each SI allocation schedule cycle, comprising:
Give dispatching cycle that each SI distributes the summation more than or equal to the length of window of all SI that need to send.
10. method as claimed in claim 8, is characterized in that, according to length of window and the dispatching cycle of each SI that determines sending each SI that comprises definite SIB, comprising:
According to length of window and the dispatching cycle of each SI that determines, the sequence number size according to the SIB that comprises in each SI sends each SI that comprises definite SIB.
11. the device of a system information SI is characterized in that, this device comprises:
Determination module, the downlink radio resource size that each the system information block SIB that is used for sending as required takies and be used for sending the downlink radio resource size of SI, the SIB that each SI that determines to send on downlink radio resource comprises;
Sending module is used for sending each SI that comprises the definite SIB of described determination module.
12. device as claimed in claim 11 is characterized in that, described determination module specifically is used for,
Respectively each SIB is encoded, determine the code stream length of each SIB after coding, and the resource size that described code stream length is taken as corresponding SIB.
13. device as claimed in claim 11 is characterized in that, described determination module specifically is used for,
Determine affect the parameter value that SI takies resource, be identified for sending the size of the downlink radio resource of SI according to definite parameter value.
14. device as claimed in claim 13 is characterized in that, described determination module specifically is used for, and is identified for sending the size of the downlink radio resource of SI according to following parameter:
The downlink radio resource that is used for transmission SI accounts for the percentage N of all downlink radio resource
Ratio, the orthogonal frequency division multiplex OFDM symbol numbers N of wireless resource block RB correspondence on time domain
cp, modulation symbol efficiency value N
eff, the RB number that downlink bandwidth is corresponding
15. device as claimed in claim 14 is characterized in that, described determination module specifically is used for: determine that according to following formula a wireless sub-frame is used for the size of the downlink radio resource of transmission SI
Wherein, M refers to the number of sub carrier wave of RB correspondence on frequency domain, and K refers to the number of time slots that a wireless sub-frame is divided on time domain, and L refers to that front L the OFDM symbol of a wireless sub-frame on time domain can not be used for transmission SI.
16. described device as arbitrary in claim 11-15 is characterized in that, described determination module specifically is used for:
Different SIB is formed a SI, make the resource summation that all SIB of comprising in a SI take be less than or equal to described downlink radio resource size for sending SI, and after each SI that makes composition added other any SIB that is not included in this SI again, its size all can surpass the size of described downlink radio resource for sending SI; Wherein, same SIB only is included in a SI.
17. device as claimed in claim 16 is characterized in that, described determination module specifically is used for:
According to SIB sequence number order from small to large, the resource that different SIB take is added up, all SIB that the resource summation after cumulative are less than or equal to described downlink radio resource size for sending SI form a SI.
18. device as claimed in claim 11 is characterized in that, described determination module also is used for:
Before described sending module sends SI, determine the length of window of each SI; According to the described length of window of determining, give each SI allocation schedule cycle;
Described sending module specifically is used for: according to sending described length of window and dispatching cycle each SI that comprises the SIB that described determination module determines.
19. device as claimed in claim 18 is characterized in that, described determination module specifically is used for: give dispatching cycle that each SI distributes the summation more than or equal to the length of window of all SI that need to send.
20. device as claimed in claim 18 is characterized in that, described sending module specifically is used for:
According to length of window and the dispatching cycle of each SI that determines, the sequence number size according to the SIB that comprises in each SI sends each SI that comprises the definite SIB of described determination module.
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Address after: 510663 No. 10 Shenzhou Road, Guangzhou Science City, Guangdong Province Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 No. 10 Shenzhou Road, Guangzhou Science City, Guangdong Province Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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