CN101771641B - Configuration method and device of P-SCH (Primary Synchronization Channel) as well as synchronization signal generation method and device of P-SCH - Google Patents
Configuration method and device of P-SCH (Primary Synchronization Channel) as well as synchronization signal generation method and device of P-SCH Download PDFInfo
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Abstract
The invention discloses configuration method and device of a P-SCH (Primary Synchronization Channel) as well as synchronization signal generation method and device of the P-SCH, wherein the P-SCH configuration method comprises the following steps of: classifying system signaling carried in synchronization signals of a main synchronization channel and partial cell ID (identification) information; and respectively configuring a sequence set for expressing a classification for each classification. Via the invention, information in the synchronization signals on the main synchronization channel in an orthogonal frequency division multiplexing system is mapped through sequences in the sequence sets, and then a scheme of the synchronization signals is configured and generated and can provide convenience for a terminal to demodulate and expand the signals so as to achieve the purpose of optimizing the performance of the system.
Description
Technical field
The present invention relates to the communications field, and especially, relate to synchronizing signal launching technique and the device of the synchronizing signal production method of the collocation method of one (PrimarySynchronization Channel, referred to as P-SCH) and device, P-SCH and device, P-SCH.
Background technology
OFDM (Orthogonal Frequency Division Multiplex, referred to as OFDM) is a kind of multi-carrier transmission pattern.This technology, by the data flow of a high-speed transfer being converted to the data flow of one group of low-speed parallel transmission, can effectively reduce the susceptibility of system to multidiameter fading channel frequency selectivity; By introducing Cyclic Prefix, can also strengthen the ability of the anti-intersymbol interference of system (Inter-symbol Interference, referred to as ISI); In addition, this technology also have bandwidth availability ratio high, realize the features such as simple.Rely on above-mentioned advantage, OFDM technology is more and more in the application in radio communication basin, for example, WLAN (wireless local area network) (Wireless Local Area Network, referred to as WLAN) system, the 802.16e system based on orthogonal frequency division multiplexing multiple access and the follow-on evolution 802.16m of 802.16e system (the 4th generation communication system) etc. are all the systems based on OFDM technology.
For mobile communication system, terminal conventionally need to be by synchronizing channel access network, and in general, access step can comprise:
(1) time, Frequency Synchronization;
(2) cell ID (Cell ID) detects,
(3) broadcast reads.
By adopting above-mentioned steps, terminal can start follow-up access procedure according to the information in broadcast.
For mobile communication system, access procedure is a very important process.An important indicator of access procedure is turn-on time, and turn-on time is shorter, represents that systematic function is higher.But because access need to realize by synchronizing channel, and for the Traffic Channel of transmitting subscriber information, resource occupation will form expense.So, if wish the mobile communication system that structural behavior is good, need between access performance and synchronizing channel resource occupation, carry out balance.
In order to meet the application requirements of low deferred traffic in NGBW communication system, in the design of current 16m frame structure, three layers of mentality of designing of superframe, unit frame and subframe have mainly been considered.Fig. 1 is according to the schematic diagram of the frame structure of correlation technique.As shown in Figure 1, superframe 101 is comprised of 4 unit frame 102, and superframe control information 103 is positioned on several symbols of superframe beginning.Unit frame 102 is comprised of 8 subframe unit 104, and subframe unit 104 is divided into descending sub frame unit and sub-frame of uplink unit, can be configured according to system.Subframe unit 104 consists of 6 OFDM symbols 105.
Conventionally, superframe, unit frame and three layers of frame structure of subframe adopt the synchronization channel design of layering, that is, synchronizing channel is divided into primary synchronization channel and auxiliary synchronization channel (SecondarySynchronization Channel, referred to as S-SCH).In the 4th generation communication system, the type of base station system is more diversified, be divided into macro base station (community), micro-base station (community), Home eNodeB (Femto BS, also can be called subbase station etc.), relaying (Relay) base station etc., also there is different system configuration in different base station systems, for example, and different system bandwidths, different multi-carrier modes etc.
The base station type that these are different and system configuration will affect the sequences Design of primary synchronization channel and auxiliary synchronization channel.Main synchronizing sequence Main Function in classification synchronizing sequence is that to carry out time-frequency domain synchronous, and for terminal, obtains the information such as base station type and system configuration.But, for how the demand of the information such as base station type and system configuration to be configured the synchronous signaling of primary synchronization channel for terminal, effective solution is not yet proposed at present.
Summary of the invention
Consider the problem that cannot be configured the synchronous signaling of primary synchronization channel the demand of the information such as base station type and system configuration for terminal in correlation technique and make the present invention, for this reason, main purpose of the present invention is to provide synchronizing signal launching technique and the device of the synchronizing signal production method of a kind of collocation method of primary synchronization channel and device, primary synchronization channel and device, primary synchronization channel.
According to an aspect of the present invention, provide a kind of collocation method of primary synchronization channel, for the synchronizing signal on ofdm system primary synchronization channel is configured.
According to the collocation method of primary synchronization channel of the present invention, comprise: the system signaling carrying in the synchronizing signal of primary synchronization channel and part community id information are classified; For each classification, be configured for respectively the sequence sets that represents this classification.
Wherein, part community id information comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
And the processing that system signaling and part community id information are classified comprises: system signaling is divided into the first classification, part community id information is divided into the second classification.
Particularly, the processing that system signaling and part community id information are classified comprises: using id information Zhong community, part community ID grouping information as the first subset, the base station type information in the id information of part community and/or sector auxiliary information are divided into the second subset; The first subset and system signaling are divided into the first classification, are the second classification by the second subset division; Or the second subset and system signaling are divided into the first classification, are the second classification by the first subset division.
In addition, said system signaling comprise following one of at least: system bandwidth information, multi-carrier configuration information.
In addition, for all classification, its sequence sets is same sequence sets, and by the combination between the sequence presentation class in this sequence sets.On the other hand, each classification corresponds respectively to different sequence sets, and by the combination between the combination presentation class of the sequence in each sequence sets.
According to a further aspect in the invention, provide a kind of synchronizing signal production method of primary synchronization channel, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system.
According to the synchronizing signal production method of primary synchronization channel of the present invention, comprise: determine that each system signaling and First ray in synchronizing signal concentrate the first mapping relations table of sequence, and the second mapping relations table of sequence in various piece community id information and the second sequence sets in definite synchronizing signal; According to real system signaling, from First ray, concentrate and select corresponding First ray, and according to substantial portion community id information, from the second sequence sets, selects the second sequence of correspondence, First ray and the second combined sequence are obtained to the sequence of synchronizing signal.
Wherein, it is one of following that mode First ray and the second sequence being combined comprises: dot product, frequency division combination, combination interweaves.
And, the concentrated sequence of First ray is identical with the sequence length in the second sequence sets, and comprise following one of at least: the differential coding sequence of the differential coding sequence of the differential coding sequence of pseudo random sequence, pseudo random sequence, zero correlation sequence, zero correlation sequence, orthogonal sequence, orthogonal sequence.
In addition, part community id information comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
In addition, system signaling comprise following one of at least: system bandwidth information, multi-carrier configuration information.
According to a further aspect in the invention, provide a kind of synchronizing signal production method of primary synchronization channel, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, synchronizing signal comprises system signaling and part community id information.
According to the synchronizing signal production method of primary synchronization channel of the present invention, comprise: the mapping relations table of sequence in each combination of determining system signaling and part community id information in synchronizing signal and sequence sets; According to real system signaling, from sequence sets, select corresponding sequence as synchronous signal sequence with substantial portion community id information.
Wherein, part community id information comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
In addition, system signaling comprise following one of at least: system bandwidth information, multi-carrier configuration information.
According to a further aspect in the invention, provide a kind of inking device of primary synchronization channel, for the synchronizing signal on ofdm system primary synchronization channel is configured.
The inking device of primary synchronization channel comprises: sort module, for system signaling and part community id information that the synchronizing signal of primary synchronization channel is carried, classify; Configuration module, for being configured for respectively the sequence sets that represents this classification for each classification.
According to a further aspect in the invention, provide a kind of synchronization signal generation apparatus of primary synchronization channel, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, synchronizing signal comprises system signaling and part community id information.
According to the synchronization signal generation apparatus of primary synchronization channel of the present invention, comprise: the first determination module, for determining the first mapping relations table of the concentrated sequence of each system signaling of synchronizing signal and First ray; The second determination module, for determining the second mapping relations table of sequence in synchronizing signal various piece community id information and the second sequence sets; Composite module, for concentrating and select corresponding First ray from First ray according to real system signaling, and according to substantial portion community id information, from the second sequence sets, select the second corresponding sequence, First ray and the second combined sequence are obtained to the sequence of synchronizing signal.
According to a further aspect in the invention, provide a kind of synchronization signal generation apparatus of primary synchronization channel, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, synchronizing signal comprises system signaling and part community id information.
According to the synchronization signal generation apparatus of primary synchronization channel of the present invention, comprise: determination module, for determining the mapping relations table of sequence in each combination of synchronizing signal system signaling and part community id information and sequence sets; Select module, for selecting corresponding sequence as synchronous signal sequence with substantial portion community id information from sequence sets according to real system signaling.
According to aspects of the present invention, provide a kind of synchronizing signal launching technique of primary synchronization channel, for launching the main synchronizing sequence of synchronizing signal of ofdm system.
According to the synchronizing signal launching technique of primary synchronization channel of the present invention, comprise: main synchronizing sequence is divided into multiple segmentations, and each segmentation is mapped on the corresponding subcarrier of main synchronizing symbol; By multiple segmentations of the main synchronizing sequence after the antenna transmission mapping of transmitting terminal.
Wherein, before carrying out the transmission of main synchronizing sequence by transmitting antenna, the method can further comprise: the multiple segmentations to main synchronizing sequence configure respectively different wave beam weights.
According to a further aspect in the invention, provide a kind of synchronizing signal emitter of primary synchronization channel, for launching the main synchronizing sequence of synchronizing signal of ofdm system.
According to the synchronizing signal emitter of primary synchronization channel of the present invention, comprise: segmentation mapping block, for main synchronizing sequence is divided into multiple segmentations, and is mapped to each segmentation on the corresponding subcarrier of main synchronizing symbol; Transmitter module, for multiple segmentations of the main synchronizing sequence after shining upon by antenna transmission.
By technique scheme of the present invention, by the sequence in sequence sets, the information in the synchronizing signal on primary synchronization channel in ofdm system is shone upon, configure afterwards and generate the scheme of synchronizing signal, can terminal restituted signal and signal is expanded and facilitated, and then reach the object of the performance of optimization system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the frame structure of correlation technique;
Fig. 2 is according to the structural representation of the P-SCH of correlation technique and S-SCH;
Fig. 3 is according to the flow chart of the collocation method of the primary synchronization channel of the inventive method embodiment mono-;
Fig. 4 is according to the block diagram of the inking device of the primary synchronization channel of apparatus of the present invention embodiment mono-;
Fig. 5 is according to the flow chart of the synchronizing signal production method of the primary synchronization channel of the inventive method embodiment bis-;
Fig. 6 is according to the processing schematic diagram of the synchronizing signal production method of the primary synchronization channel of the inventive method embodiment bis-;
Fig. 7 is according to the flow chart of the processing example of the synchronizing signal production method of the primary synchronization channel of the inventive method embodiment bis-;
Fig. 8 is according to the block diagram of the synchronization signal generation apparatus of the primary synchronization channel of apparatus of the present invention embodiment bis-;
Fig. 9 is according to the flow chart of the synchronizing signal production method of the primary synchronization channel of the inventive method embodiment tri-;
Figure 10 is according to the processing schematic diagram of the synchronizing signal production method of the primary synchronization channel of the inventive method embodiment tri-;
Figure 11 is according to the flow chart of the processing example of the synchronizing signal production method of the primary synchronization channel of the inventive method embodiment tri-;
Figure 12 is according to the block diagram of the synchronization signal generation apparatus of the primary synchronization channel of apparatus of the present invention embodiment tri-;
Figure 13 is according to the flow chart of the synchronizing signal launching technique of the primary synchronization channel of the inventive method embodiment tetra-;
Figure 14 is according to the block diagram of the synchronizing signal emitter of the primary synchronization channel of apparatus of the present invention embodiment tetra-.
Embodiment
Functional overview
For the problem that cannot be configured the synchronous signaling of primary synchronization channel the demand of the information such as base station type and system configuration for terminal in correlation technique, the present invention is shone upon the information in the synchronizing signal on primary synchronization channel in ofdm system by the sequence in sequence sets, configure afterwards and generate the scheme of synchronizing signal, for terminal restituted signal and signal is expanded and provided convenience, optimized the performance of system.
Fig. 2 is P-SCH and the S-SCH structure chart that the present invention is relevant.Based on the frame structure shown in Fig. 1, as shown in the A part in Fig. 2, P-SCH 201 and S-SCH 202 send once respectively in superframe, and P-SCH 201 is in the initial transmission of 16m superframe, and first symbol of 2nd the 16m unit frame of S-SCH 202 in superframe sends.As shown in the B part of Fig. 2, P-SCH 201 sends once in superframe, S-SCH 202 sends the initial transmission of twice, P-SCH 201 at 16m superframe in superframe, 2nd the 16m unit frame of S-SCH 202 in superframe and first symbol transmission of the 4th 16m unit frame.As shown in the C part in Fig. 2, P-SCH 201 sends once in superframe, S-SCH 202 sends three times in superframe, P-SCH 201 is in the initial transmission of 16m superframe, and first symbol of 2nd 16m unit frame, 3rd 16m unit frame and 4th the 16m unit frame of S-SCH 202 in superframe sends.
Channel architecture shown in frame structure and Fig. 2 based on shown in Fig. 1, will describe embodiments of the invention below in detail.
Embodiment of the method one
In the present embodiment, provide a kind of collocation method of primary synchronization channel, the method can be used for the synchronizing signal on primary synchronization channel in ofdm system to be configured, and wherein, the synchronizing signal on P-SCH sends in the bandwidth of fixed size.
As shown in Figure 3, according to the collocation method of the P-SCH of the present embodiment, comprise step S302 and step S304.
Processing shown in Fig. 3 will be described in detail below.
Step S302, classifies to the system signaling carrying in the synchronizing signal of P-SCH and part community id information;
Step S304, for each classification, is configured for respectively the sequence sets that represents this classification.
Wherein, part community id information can comprise following one of at least: community ID (CellID) grouping information, base station type information, sector auxiliary information.Said system signaling can comprise following one of at least: system bandwidth information, multi-carrier configuration information.
And, in step S302, system signaling and part community id information are classified and can be adopted following two kinds of modes:
Mode one: system signaling is divided into the first classification, part community id information is divided into the second classification.
Mode two: using id information Zhong community, part community ID grouping information as the first subset, the base station type information in the id information of part community and/or sector auxiliary information are divided into the second subset; The first subset and system signaling are divided into the first classification, are the second classification by the second subset division; Or the second subset and system signaling are divided into the first classification, are the second classification by the first subset division.
Alternatively, for all classification, its sequence sets is same sequence sets, and by the combination between the sequence presentation class in this sequence sets.
Alternatively, each classification corresponds respectively to different sequence sets, and by the combination between the combination presentation class of the sequence in each sequence sets.
By above-mentioned processing, by means of sequence, synchronizing signal is shone upon, can facilitate for terminal receives synchronizing signal, and then reach the object of optimization system performance.
Device embodiment mono-
In the present embodiment, provide a kind of inking device of primary synchronization channel, for the synchronizing signal on ofdm system primary synchronization channel is configured.
As shown in Figure 4, according to the inking device of the primary synchronization channel of the present embodiment, comprise: sort module 42, configuration module 44.
Wherein, part community id information can comprise following one of at least: community ID (CellID) grouping information, base station type information, sector auxiliary information.Said system signaling can comprise following one of at least: system bandwidth information, multi-carrier configuration information.
Wherein, configuration module 44 can be same sequence sets for the sequence sets of all classification configurations, and by the combination between the sequence presentation class in this sequence sets.
On the other hand, configuration module 44 can correspond respectively to different sequence sets for each classification, and by the combination between the combination presentation class of the sequence in each sequence sets.
By said apparatus, by means of sequence, synchronizing signal is shone upon, can facilitate for terminal receives synchronizing signal, and then reach the object of optimization system performance.
Embodiment of the method two
In the present embodiment, provide a kind of synchronizing signal production method of primary synchronization channel, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, synchronizing signal comprises system signaling and part community id information.
As shown in Figure 5, according to the synchronizing signal production method of the primary synchronization channel of the present embodiment, comprise step S502 and step S504.
To describe the processing procedure shown in Fig. 5 in detail below:
Step S502, determines that each system signaling and First ray in synchronizing signal concentrate the first mapping relations table of sequence, and the second mapping relations table of sequence in various piece community id information and the second sequence sets in definite synchronizing signal;
Step S504, concentrates and selects corresponding First ray from First ray according to real system signaling, and according to substantial portion community id information, from the second sequence sets, selects the second sequence of correspondence, First ray and the second combined sequence is obtained to the sequence of synchronizing signal.
Wherein, part community id information can comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
Alternatively, mode First ray and the second sequence being combined can comprise: dot product, frequency division combination, combination interweaves.
Preferably, the concentrated sequence of First ray is identical with the sequence length in the second sequence sets, and comprise following one of at least: pseudo random sequence, zero correlation sequence, orthogonal sequence, the differential coding sequence of above-mentioned three sequences.
Fig. 6 is according to the processing schematic diagram of the synchronizing signal production method of the P-SCH of the present embodiment.As shown in Figure 6, in actual applications, can pre-determine the mapping relations table 1 (corresponding to above-mentioned the first mapping relations table) of different system signalings and sequence sets 1 (corresponding to above-mentioned First ray collection), the mapping relations table 2 (corresponding to above-mentioned the second mapping relations table) of part Cell id information and sequence sets 2 (corresponding to the second above-mentioned sequence sets).
Base station obtains the sequence number of sequence 1 (corresponding to above-mentioned First ray) from mapping relations table 1 according to system signalings such as system bandwidth and/or system multi-carrier configurations, obtain sequence
according to part Cell id information, from mapping relations table 2, obtain the sequence number of sequence 2 (corresponding to above-mentioned the second sequence), obtain sequence
wherein, sequence
and sequence
sequence length identical.
Synchronizing signal in synchronizing channel can be passed through the combination producing of sequence 1 signal to sequence 2 signals.Further, the sequence that the synchronizing signal in synchronizing channel (being P-SCH sequence x (n)) is L
with
dot product forms.
By above-mentioned processing, combined sequence in two different sequence sets can be obtained to synchronizing channel, be convenient to P-SCH and carry the expansion of control information.
To, take broadband cellular wireless communication system 16m as example, describe in detail according to the processing procedure of the synchronizing signal production method of the P-SCH of the present embodiment below.
The Cell id information of the system signaling that the synchronizing signal of P-SCH is carried and part is divided into two classification, by different sequence sets, represent respectively, can be using system signaling as a classification, the Cell id information of part is as a classification, by different sequence sets, represent respectively, be that system signaling passes through sequence sets 1 and represents, the Cell id information of part represents by sequence sets 2, system bandwidth and system multi-carrier configuration signal represent by sequence sets 1, and community ID grouping information and/or base station type and/or sector auxiliary information represent by sequence sets 2.By the different sequences in sequence sets 1, represent different system bandwidths and system multi-carrier configuration information, by the different sequences in sequence sets 2, represent the Cell id information of different parts.Table 1 is different system bandwidths and the mapping relations of system multi-carrier configuration information and sequence sets 1, table 2 is the mapping relations of community ID grouping information, base station type and sector auxiliary information and sequence sets 2, the mapping relations of base station type and sector auxiliary information and sequence sets 2 when table 3 does not carry community ID grouping information for P-SCH.
Table 1
Table 2
Table 3
In addition, also can be using the subset 1 in the Cell id information of system signaling and part as a classification (classification 1), subset 2 in the Cell id information of part is as another classification (classification 2), by different sequence sets, represent respectively, classifying 1 represents by sequence sets 1, and classification 2 represents by sequence sets 2.The classification 1 of the subset 1 in the Cell id information that comprises system signaling and part is as shown in table 4 with the mapping relations of P-SCH sequence sets 1.The classification 2 that comprises subset 2 information in Cell id information is partly Cell ID grouping information, by P-SCH packet sequence (being sequence sets 2), represents, the length of P-SCH packet sequence is L, and the number of packet sequence is Γ, wherein, and Γ >=1.(in Γ=1 expression system, not to Cell ID divide into groups (grouping), corresponding sequence sets 2 be empty), the mapping relations of classification 2 and P-SCH packet sequence are as shown in table 5.
Table 4
Table 5
| The Cell ID grouping information that P-SCH carries | The sequence number j of P-SCH packet sequence G |
| The 1st group of Cell ID | 1 |
| The 2nd group of Cell ID | 2 |
| ... | ... |
| Γ group Cell ID | Γ |
Continuation is with reference to the processing procedure shown in Fig. 6.As shown in Figure 6, the Cell id information of the system signaling that the synchronizing signal of synchronizing channel is carried and part is divided into two classification (classification 1 601 and classification 2 602), respectively by the information in different sequence sets presentation class 1 and classification 2, for the difference of concrete sorting technique, according to the specifying information of classification 1 601, from mapping relations table 1 (or mapping relations table 4), search the sequence number i that obtains sequence 1 603, obtain sequence
according to the specifying information of classification 2, from mapping relations table 2 (or mapping relations table 3 or mapping relations table 5), obtain the sequence number j of sequence 2604, obtain sequence
wherein, sequence
and sequence
sequence length identical, length L=432/2.With sequence 1 signal, sequence 2 signals are modulated the synchronizing signal x (n) of (dot product) 605 generation P-SCH.
The occupied bandwidth of P-SCH synchronizing signal is 5MHz, and synchronizing signal x (n) is at available subcarrier N
usedeven number position mapping on=432 subcarriers, the zero setting of available subcarrier odd positions, that is:
x(n)＝x(2k)，n＝2k，k＝1，2，3，...
x(n)＝x(2k+1)＝＝0，n＝2k+1，k＝1，2，3，...
The P-SCH synchronizing signal that adopts aforesaid way to produce is converted by IFFT, can obtain the P-SCH symbol of transmitting.
Fig. 7 is according to the flow chart of the processing example of the synchronizing signal production method of the P-SCH of the present embodiment.As shown in Figure 7, specifically comprise following processing:
701, community ID (Cell ID) information of the system signaling that the synchronizing signal of primary synchronization channel is carried and part is divided into two classification, represents respectively by different sequence sets.Wherein, system signaling can be system bandwidth and/or system multi-carrier configuration etc.; Community ID (Cell ID) information of part can be community ID grouping information and/or base station type and/or sector auxiliary information.Can be using system signaling as a classification, the Cell id information of part, as a classification, represents by different sequence sets respectively, and signaling represents by sequence sets 1, and the Cell id information of part represents by sequence sets 2.Also can be using the subset 1 in the CellID information of system signaling and part as a classification (classification 1), the subset 2 of the Cell id information of part is as another classification (classification 2), by different sequence sets, represent respectively, classifying 1 represents by sequence sets 1, and classification 2 represents by sequence sets 2.By the different sequences in sequence sets 1, represent the signalings such as different system bandwidths and/or system multi-carrier information.By the different sequences in sequence sets 2, represent different part Cell id informations.
702, pre-determine the mapping relations table 1 of different system signalings and sequence sets 1, the mapping relations table 2 of part Cell id information and sequence sets 2.
703, base station obtains the sequence number i of sequence 1 from mapping relations table 1 according to system signalings such as system bandwidth and/or system multi-carrier configurations, obtains sequence
according to part Cell id information, from mapping relations table 2, obtain the sequence number j of sequence 2, obtain sequence
wherein, sequence
and sequence
sequence length identical.
704, the synchronizing signal in synchronizing channel is by the combination producing of sequence 1 signal to sequence 2 signals, and synchronizing signal (being P-SCH sequence x (n)) is the sequence of L
with
dot product forms.
By above-mentioned processing, combined sequence in two different sequence sets can be obtained to synchronizing channel, be convenient to P-SCH and carry the expansion of control information.
Device embodiment bis-
In the present embodiment, provide a kind of synchronization signal generation apparatus of primary synchronization channel, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, synchronizing signal comprises system signaling and part community id information.
As shown in Figure 8, according to the synchronization signal generation apparatus of the primary synchronization channel of the present embodiment, comprise: the first determination module 82, the second determination module 84 and composite module 86.
In device shown in Fig. 8, the function of modules is as follows:
The first determination module 82, for determining the first mapping relations table of the concentrated sequence of each system signaling of synchronizing signal and First ray;
The second determination module 82, for determining the second mapping relations table of sequence in synchronizing signal various piece community id information and the second sequence sets;
Wherein, part community id information can comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
Alternatively, mode First ray and the second sequence being combined can comprise: dot product, frequency division combination, combination interweaves.
Preferably, the concentrated sequence of First ray is identical with the sequence length in the second sequence sets, and comprise following one of at least: pseudo random sequence, zero correlation sequence, orthogonal sequence, the differential coding sequence of these three sequences.
The processing of this device shown in can carry out Fig. 5 to 7 equally, its processing procedure no longer repeats here.
By above-mentioned processing, combined sequence in two different sequence sets can be obtained to synchronizing channel, thereby be convenient to P-SCH and carry the expansion of control information.
Embodiment of the method three
In the present embodiment, a kind of synchronizing signal production method of primary synchronization channel is provided, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, synchronizing signal comprises system signaling and part community id information, system signaling can comprise following one of at least: system bandwidth information, multi-carrier configuration information etc., part community id information can comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
As shown in Figure 9, according to the synchronizing signal production method of the primary synchronization channel of the present embodiment, comprise:
Step S902, the mapping relations table of sequence in each combination of determining system signaling and part community id information in synchronizing signal and sequence sets; That is to say, in this step, the synchronizing signal on primary synchronization channel need to be chosen from same sequence sets, and the different sequences in this sequence sets represent the combination of the Cell id information of different system signalings and part.
Step S904 selects corresponding sequence as synchronous signal sequence according to real system signaling with substantial portion community id information from sequence sets.
By above-mentioned processing, can effectively reduce the demodulation step of terminal, thereby facilitate terminal to receive and resolve synchronizing signal.
Figure 10 is according to the processing schematic diagram of the synchronizing signal production method of the primary synchronization channel of the present embodiment.As shown in figure 10, the synchronizing signal on primary synchronization channel is chosen from same sequence sets, and the different sequences in this sequence sets represent the combination of the CellID information of different system signalings and part.System signaling can be system bandwidth and system multi-carrier configuration information, and the Cell id information of part can be community ID grouping information, base station type and sector type information.The mapping relations of system signaling and part Cell id information and sequence sets are as shown in table 6, and wherein, system Cell ID packet count is K, K >=1.
Table 6
The Cell id information of part also can be community ID grouping information, base station type information.Now, the mapping relations of system signaling and part Cell id information and sequence sets are as shown in table 7, and wherein, system Cell ID packet count is K, K >=1.
Table 7
As shown in figure 10, the synchronizing signal on primary synchronization channel is chosen from sequence sets 1002, and the different sequences in sequence sets represent the combination 1001 of the Cell id information of different system signalings and part.According to the specifying information type of the Cell id information of system signaling and part, mapping relations according to the combination of concrete system signaling and part Cell id information from mapping relations table 6 or mapping relations table 7 are chosen the sequence p (k) of corresponding sequence number as the synchronizing signal on primary synchronization channel from sequence sets.
Figure 11 is according to the flow process of the processing example of the synchronizing signal production method of the primary synchronization channel of the present embodiment.As shown in figure 11, specifically comprise following processing:
1101, the synchronizing signal on primary synchronization channel is chosen from same sequence sets (synchronizing sequence collection), and the different sequences in sequence sets represent the combination of the Cell id information of different system signalings and part;
1102, preset different system signalings and the combination of Cell id information and the mapping relations of synchronizing sequence collection partly;
1103, according to the Cell id information of different system signalings and part, from synchronizing sequence, concentrate the sequence p (k) that chooses corresponding sequence number to send as the synchronizing signal primary synchronization channel.
By above-mentioned processing, can effectively reduce the demodulation step of terminal, thereby facilitate terminal to receive and resolve synchronizing signal.
Device embodiment tri-
In the present embodiment, a kind of synchronization signal generation apparatus of primary synchronization channel is provided, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, synchronizing signal comprises system signaling and part community id information, part community id information can comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
As shown in figure 12, according to the synchronization signal generation apparatus of the primary synchronization channel of the present embodiment, comprise: determination module 122 and selection module 124.In device shown in Figure 12, the function of each module is as follows:
The processing of this device shown in can carry out Fig. 9 to 11 equally, its processing procedure no longer repeats here.
By utilizing this device to carry out the generation of signal, can effectively reduce the demodulation step of terminal, thereby facilitate terminal to receive and resolve synchronizing signal.
Embodiment of the method four
In the present embodiment, provide a kind of synchronizing signal launching technique of primary synchronization channel, for launching the main synchronizing sequence of synchronizing signal of ofdm system.
As shown in figure 13, according to the synchronizing signal launching technique of the primary synchronization channel of the present embodiment, comprise step 1302 and step S1304.
The concrete processing procedure of method shown in Figure 13 is as follows:
Step 1302, (main synchronizing sequence is divided into multiple segmentations, on frequency domain, main synchronizing sequence is carried out to segmentation, for example, can be divided into 2 sections, 3 sections or multistage more), and each segmentation is mapped on the corresponding subcarrier of main synchronizing symbol to (segmentation and subcarrier can be one to one relation);
Step 1304, by multiple segmentations of the main synchronizing sequence after the antenna transmission mapping of transmitting terminal.
Preferably, before sending by transmitting antenna, can also configure respectively different wave beam weights to multiple segmentations of main synchronizing sequence, for example, can configure random weights, or fixing weights, suppose, the in the situation that of 2 segmentations and 2 antennas, the fixing weights of two segmentations can be respectively [10] and [01].
By according to the method for the present embodiment, can realize the transmission of the master sync signal that previous embodiment is configured and generated.
Device embodiment tetra-
In the present embodiment, provide a kind of synchronizing signal emitter of primary synchronization channel, for launching the main synchronizing sequence of synchronizing signal of ofdm system.
As shown in figure 14, according to the synchronizing signal emitter of the primary synchronization channel of the present embodiment, comprise segmentation mapping block 142 and transmitter module 144.
In device shown in Figure 14, the function of modules is as follows:
By according to the device of the present embodiment, can realize the transmission of the master sync signal that previous embodiment is configured and generated.
In sum, by means of technical scheme of the present invention, by the sequence in sequence sets, the information in the synchronizing signal on primary synchronization channel in ofdm system is shone upon, configure afterwards and generate the scheme of synchronizing signal, can terminal restituted signal and signal is expanded and facilitated, and then reach the object of the performance of optimization system.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a collocation method for primary synchronization channel, for the synchronizing signal on ofdm system primary synchronization channel is configured, is characterized in that, described method comprises:
The system signaling carrying in the described synchronizing signal of described primary synchronization channel and part community id information are classified, described part community id information comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information;
For each classification, be configured for respectively the sequence sets that represents this classification;
The processing of wherein, described system signaling and described part community id information being classified comprises:
Using id information Zhong community, described part community ID grouping information as the first subset, base station type information and/or sector auxiliary information in the id information of described part community are divided into the second subset;
Described the first subset and described system signaling are divided into the first classification, are the second classification by described the second subset division; Or described the second subset and described system signaling are divided into the first classification, are the second classification by described the first subset division.
2. method according to claim 1, is characterized in that, the processing that described system signaling and described part community id information are classified comprises:
Described system signaling is divided into the first classification, described part community id information is divided into the second classification.
3. according to the method described in claim 1 or 2 any one, it is characterized in that, described system signaling comprise following one of at least: system bandwidth information, multi-carrier configuration information.
4. according to the method described in claim 1 or 2 any one, it is characterized in that, for all classification, its sequence sets is same sequence sets, and by the combination between the sequence presentation class in this sequence sets.
5. according to the method described in claim 1 or 2 any one, it is characterized in that, each classification corresponds respectively to different sequence sets, and by the combination between the combination presentation class of the sequence in each sequence sets.
6. a synchronizing signal production method for primary synchronization channel, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, described synchronizing signal comprises system signaling and part community id information, it is characterized in that, described method comprises:
Determine that in described synchronizing signal, each system signaling and First ray are concentrated the first mapping relations table of sequence, and determine in described synchronizing signal the second mapping relations table of sequence in various piece community id information and the second sequence sets;
According to real system signaling, from described First ray, concentrate and select corresponding First ray, and according to substantial portion community id information, from described the second sequence sets, select the second corresponding sequence, described First ray and described the second combined sequence are obtained to the sequence of described synchronizing signal.
7. method according to claim 6, is characterized in that, it is one of following that the mode that described First ray and described the second sequence are combined comprises: dot product, frequency division combination, combination interweaves.
8. according to the method described in claim 6 or 7, it is characterized in that, the concentrated sequence of described First ray is identical with the sequence length in described the second sequence sets, and comprise following one of at least: the differential coding sequence of the differential coding sequence of the differential coding sequence of pseudo random sequence, pseudo random sequence, zero correlation sequence, zero correlation sequence, orthogonal sequence, orthogonal sequence.
9. according to the method described in claim 6 or 7, it is characterized in that, described part community id information comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information.
10. according to the method described in claim 6 or 7, it is characterized in that, described system signaling comprise following one of at least: system bandwidth information, multi-carrier configuration information.
The inking device of 11. 1 kinds of primary synchronization channels, for the synchronizing signal on ofdm system primary synchronization channel is configured, is characterized in that, described device comprises:
Sort module, for system signaling and part community id information that the described synchronizing signal of described primary synchronization channel is carried, classify, described part community id information comprise following one of at least: community ID grouping information, base station type information, sector auxiliary information;
Configuration module, for being configured for respectively the sequence sets that represents this classification for each classification;
Wherein, the processing that sort module is classified to described system signaling and described part community id information comprises:
Using id information Zhong community, described part community ID grouping information as the first subset, base station type information and/or sector auxiliary information in the id information of described part community are divided into the second subset;
Described the first subset and described system signaling are divided into the first classification, are the second classification by described the second subset division; Or described the second subset and described system signaling are divided into the first classification, are the second classification by described the first subset division.
The synchronization signal generation apparatus of 12. 1 kinds of primary synchronization channels, for the synchronizing signal of generating orthogonal Frequency Division Multiplexing system, wherein, described synchronizing signal comprises system signaling and part community id information, it is characterized in that, described device comprises:
The first determination module, for determining the first mapping relations table of the concentrated sequence of each system signaling of described synchronizing signal and First ray;
The second determination module, for determining the second mapping relations table of sequence in described synchronizing signal various piece community id information and the second sequence sets;
Composite module, for concentrating and select corresponding First ray from described First ray according to real system signaling, and according to substantial portion community id information, from described the second sequence sets, select the second corresponding sequence, described First ray and described the second combined sequence are obtained to the sequence of described synchronizing signal.
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| CN1890938A (en) * | 2003-12-10 | 2007-01-03 | 艾利森电话股份有限公司 | Wireless multicarrier system with subcarriers reserved for communication between unsynchronized nodes |
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| CN1685647A (en) * | 2002-08-26 | 2005-10-19 | 弗拉里奥恩技术公司 | Beacon signaling in a wireless system |
| CN1890938A (en) * | 2003-12-10 | 2007-01-03 | 艾利森电话股份有限公司 | Wireless multicarrier system with subcarriers reserved for communication between unsynchronized nodes |
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