CN101515824A - Method and system for processing signal - Google Patents
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- CN101515824A CN101515824A CNA2008101820290A CN200810182029A CN101515824A CN 101515824 A CN101515824 A CN 101515824A CN A2008101820290 A CNA2008101820290 A CN A2008101820290A CN 200810182029 A CN200810182029 A CN 200810182029A CN 101515824 A CN101515824 A CN 101515824A
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Abstract
Certain embodiments of the invention may be found in a method and system for ordering sequences for synchronization signaling in a wireless system. Various aspects of the invention may enable a user equipment (UE) receiving signals from eUTRAN base stations (NodeBs). The received signals may comprise synchronization sequences transmitted using synchronization signals such as a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The UE may be enabled to determine the received PSS sequence and SSS sequence for downlink synchronization by correlating the received signal with a set of PSS sequences and a set of SSS sequences, respectively. An SSS sequence may be constructed from two length m-sequences from an ordered set of m-sequences. The ordered set of m-sequences may form a Walsh-Hadamard matrix, which enables the UE to use a fast Walsh-Hadamard matrix transform in SSS sequence processing.
Description
Technical field
The present invention relates to wireless communication system, more particularly, relate to a kind of method and system that the synchronous signal sequence in the wireless system is sorted of being used for.
Background technology
Mobile communication has changed the mode of people's communications, and mobile device user has begun to carry on business and keep in touch by the high-quality cellular service.With serving base station is provided just service held consultation before, mobile device need obtain special (cell-specific) information of some honeycombs from the base station, for example the time and/Frequency Synchronization.
In 3GPP EUTRA or Long Term Evolution (long-term evolution), the honeycomb specialized information by reference and/synchronizing signal carrying.The latter constitutes the down-going synchronous in the mobile device and the basis of cell ID message identification.Define two kinds of descending (DL) synchronizing signal-master sync signals (PSS) and secondary synchronizing signal (SSS) respectively, come to transmit time sequence information, so that mobile device can obtain the correct sequential of DL frame to mobile device.These signals also are used to transmit base station identification information.
Compare the follow-up system that will introduce in conjunction with the accompanying drawings of the present invention, other limitation of prior art and drawback are conspicuous for the person of ordinary skill of the art.
Summary of the invention
The invention provides a kind of method and system that the synchronous signal sequence in the wireless system is sorted of being used for, illustrate in conjunction with at least one accompanying drawing, and done complete definition in the claims.
According to one aspect of the present invention, a kind of method of processing signals is provided, comprising:
Go up reception from signal of base station at subscriber equipment (UE), this signal comprises synchronizing sequence; And,
Determine described synchronizing sequence based on one group among the described UE maximum length sequence (m sequence) through ordering.
Preferably, described synchronizing sequence is made up by one or more maximum length sequences (m sequence).
Preferably, described base station is the eUTRAN base station.
Preferably, described method also comprises the correlation between the one group of maximum length sequence that calculates described signal of receiving and described process ordering.
Preferably, described method also comprises based on the described correlation that calculates and determines described synchronizing sequence.
Preferably, described one group of maximum length sequence through ordering is to obtain according to the order conversion of determining from a maximum length sequence (m sequence).
Preferably, described method also comprises from the initial setting [SR of n level m sequence generator
1, SR
2..., SR
n]=[1,0 ..., 0] the described m sequence of passing through in the one group of maximum length sequence that sorts of middle generation, the length of the wherein said synchronizing sequence of receiving equals 2
n-1, n is a nonzero integer.
Preferably, described method also comprises by generating the continuous cyclic shift left of a m sequence of described generation described through the follow-up m sequence in one group of maximum length sequence of ordering.
Preferably, described method also comprises based on described one group of maximum length sequence generation Walsh-Hadamard matrix through ordering.
Preferably, described method also comprises based on described Walsh-Hadamard matrix and determines described synchronizing sequence.
Preferably, described one group of maximum length sequence through ordering is formed the Walsh-Hadamard matrix.
According to one aspect of the present invention, a kind of signal processing system is provided, comprising:
One or more circuit are used for going up reception from signal of base station at subscriber equipment (UE), and this signal comprises synchronizing sequence; And,
Described one or more circuit is determined described synchronizing sequence based on one group among the described UE maximum length sequence (m sequence) through ordering.
Preferably, described synchronizing sequence is made up by one or more maximum length sequences (m sequence).
Preferably, described base station is the eUTRAN base station.
Preferably, described one or more circuit is used to calculate the described signal of receiving and described through the correlation between one group of maximum length sequence of ordering.
Preferably, described one or more circuit is used for determining described synchronizing sequence based on the described correlation that calculates.
Preferably, described one group of maximum length sequence through ordering is to obtain according to the order conversion of determining from a maximum length sequence (m sequence).
Preferably, described one or more circuit is used for from the initial setting [SR of n level m sequence generator
1, SR
2..., SR
n]=[1,0 ..., 0] the described m sequence of passing through in the one group of maximum length sequence that sorts of middle generation, the length of the wherein said synchronizing sequence of receiving equals 2
n-1, n is a nonzero integer.
Preferably, described one or more circuit is used for by the continuous cyclic shift left of a m sequence of described generation being generated the follow-up m sequence of one group of maximum length sequence of described process ordering.
Preferably, described one or more circuit is used for generating the Walsh-Hadamard matrix based on described one group of maximum length sequence through ordering.
Preferably, described one or more circuit is used for determining described synchronizing sequence based on described Walsh-Hadamard matrix.
Preferably, described one group of maximum length sequence through ordering is formed the Walsh-Hadamard matrix.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is a structural representation of setting up exemplary EUTRA (LET) communication system of signal Synchronization according to the sequence of the process the used ordering of a preferred embodiment of the present invention;
Fig. 2 is the structural representation according to exemplary EUTRA (LTE) the downlink synchronous signal structure of a preferred embodiment of the present invention;
Fig. 3 is the structural representation that can be used for generating the exemplary m sequence generator that passes through the m sequence that sorts according to a preferred embodiment of the present invention, and wherein the m sequence through ordering can be used to carry out signal Synchronization;
Fig. 4 is the flow chart according to the exemplary steps of the generation m sequence of a preferred embodiment of the present invention.
Embodiment
Some embodiments of the present invention relate to a kind of method and system that the synchronous signal sequence in the wireless system is sorted of being used for.According to various aspects of the present invention, subscriber equipment (UE) can be used for from one or more eUTRAN base station (NodeB) received signal.The signal of receiving can comprise the binary system synchronizing sequence that uses for example secondary synchronizing signal of synchronizing signal (SSS) to send.UE can be related with possibility candidate's PSS sequence and the foundation of SSS sequence respectively by the signal that will receive, determines the synchronous and secondary synchronizing signal of the master who receives, to set up down-going synchronous.The SSS sequence can be by carrying out cascade and interweave making up through two m sequences in one group of m sequence of ordering.UE can adopt m sequence transformation method determine the sequence of receiving be through the ordering one group of m sequence in which.The initial content of shift register of m sequence generator that can be by correspondence through the m sequence in one group of m sequence of ordering is set to following content and generates:
[SR
1，SR
2，...，SR
n]＝[1，0，...，0]
Wherein n is the inferior of m sequence generator.Through in one group of m sequence of ordering subsequently the m sequence can by to the m sequence that generates continuously left cyclic shift generate.One group of m sequence through ordering can constitute 2
n* 2
nThe Walsh-Hadamard matrix.UE can use Fast W alsh-Hadamard matrixing in auxiliary synchronous signals (SSS) testing process.
Fig. 1 is a structural representation of setting up exemplary EUTRA (LET) communication system of signal Synchronization according to the sequence of the process the used ordering of a preferred embodiment of the present invention.As shown in Figure 1, wherein showed eUTRAN base station (e-NodeB1) 110a, eUTRAN base station (e-NodeB2) 110b, by the honeycomb 120a of e-NodeB1 service, by the honeycomb 120b and the subscriber equipment (UE) 130 of e-NodeB2 service.
EUTRAN base station such as e-NodeB1 110a and/or e-NodeB2 110b can comprise suitable logic, circuit and/or code, are used for setting up, keeping being connected with termination by EUTRA (LTE) air interface.E-NodeB1 110a and/or e-NodeB2 110b can be used for managing radio resources, and for example radio bearer control, wireless access control, connection are moved control and be UE 130 dynamic assignment resource (scheduling) on the uplink and downlink direction.In this, eUTRAN base station such as e-NodeB1 110a can use downlink synchronous signal for example master sync signal (PSS) and secondary synchronizing signal (SSS) send synchronizing sequences to UE 130 in one or more radio frames.UE 130 can obtain the time, and sets up Frequency Synchronization with the honeycomb 120a of e-NodeB1 service, and the cell ID of determining the honeycomb 120a of e-NodeB1 service based on the PSS that receives and SSS.E-NodeB1 110a can distribute and control a plurality of messaging parameters for example physical layer cell ID group and physical layer cell ID, and UE uses this parameter to obtain the time slot and the frame sequential of downlink transfer.
UE 130 can comprise suitable logic, circuit and/or code, is used for communicating with eUTRAN base station such as e-NodeB1 110a.UE 130 can come to communicate by letter with e-NodeB1 110a foundation, maintenance and/or termination by carrying out various processes (procedure) as link establishment and cell search.For example, if UE130 starts and/or is in active or idle pulley, UE 130 can carry out cell search, obtains time slot and frame sequential, and sets up Frequency Synchronization with the base station.UE 130 is the cell ID of detectable honeycomb also, obtains system parameters such as Cyclic Prefix (CP) length and system bandwidth.UE 130 can set up synchronously with reflector based on related between the signal of receiving and one group of PSS time domain sequences and the SSS sequence.
The SSS sequence can make up by two m sequences being carried out cascade (concatenating) and interweave.In this, two m sequences can be from one group of m sequence through ordering, and this group m sequence can use specific initialization sequence that the m sequence generator is carried out obtaining in the initialized process.The purposes of one group of m sequence of process ordering is that UE 130 can be by reducing the computation complexity in the SSS testing process based on the fastest Walsh-Hadamard conversion use m sequence transformation technology.
In the course of the work, UE 130 can for example e-NodeB1 110a and/or e-NodeB2 110b distinguish received signal from the eUTRAN base station.UE 130 can carry out cell search, comes and base station for example the honeycomb 120a of e-NodeB1 service or the honeycomb 120b settling time and the Frequency Synchronization of e-NodeB2 service.In the cell search process, UE 130 can obtain the slot synchronization with honeycomb by a plurality of filters that use and one group of PSS sequence are complementary, and this group PSS sequence can be included in the signal of receiving.UE 130 can carry out the related SSS sequence of discerning from e-NodeB1 110a and/or e-NodeB2 110b with the possible SSS sequence of the m sequence construct that is sorted by one group of process by the signal that will receive.UE 130 can come achieve frame synchronous based on PSS that has discerned and SSS sequence, and definite cell ID information.UE 130 can rest in definite honeycomb, so that communicate with corresponding serving BS (e-NodeB1 110a or e-NodeB2110b).
Fig. 2 is the structural representation according to exemplary EUTRA (LTE) the downlink frame structure of a preferred embodiment of the present invention.As shown in Figure 2, wherein showed downlink radio frame 200.In EUTRA (LTE), downlink radio frame 200 may be partitioned into the time slot of 20 equal sizes, and constitutes for example subframe 210 of a subframe by two continuous time slot.Each subframe for example subframe 210 can comprise the time slot of two equal sizes.Downlink synchronous signal for example PSS 210a and SSS 210b can (for example e-NodeB1110a and/or e-NodeB2 110b) send from the eUTRAN base station, mail to UE 130, so, UE 130 just can obtain the correct sequential of downlink radio frame 200, and obtains correct cell ID.PSS 210a and SSS 210b can transmit in the subframe in the downlink radio frame 200 0 and 5, and occupy two continuous OFDM symbols in the corresponding subframe.PSS can be used to the physics cell ID in distinguished symbol sequential and the cell ID group, and SSS can be used to discern frame boundaries, surveys for example CP length of cell ID group, system parameters.UE 130 can be related with possible SSS sequence foundation with the signal of receiving, to survey the SSS sequence that (for example e-NodeB1110a and/or e-NodeB2 110b) sends from the eUTRAN base station.In this, possible SSS sequence can make up through the m sequence in the m sequence of ordering by one group, to realize more low complex degree among the SSS processing procedure.
Fig. 3 is the structural representation that can be used for generating the exemplary m sequence generator that passes through the m sequence that sorts according to a preferred embodiment of the present invention, and wherein the m sequence through ordering can be used to carry out signal Synchronization.As shown in Figure 3, wherein showed m sequence generator 300, it specifically comprises Ex-OR 310 and a plurality of shift register stage or unit (SR), and the latter comprises SR1 301a, SR2 301b, SR3301c, SR4 301d and SR5 301e as shown in the figure.
According to one embodiment of the present of invention, first required length is 2 in the group
n-1 m sequence can be by using [SR to the content in the pairing n of a m sequence generator shift register stage or the unit
1, SR
2..., SR
n]=[1,0 ..., 0] carry out initialization and generate.Second required length is 2 in the group
n-1 m sequence can be by being 2 to above-mentioned first required length
n-1 m sequence circulates left mobile one and generates.The 3rd required length is 2 in the group
n-1 m sequence can be by being 2 to above-mentioned second required length
n-1 m sequence circulates left mobile one and generates, and so repeats.This process continues to carry out always, and follow-up Len req is 2 in the feasible group
n-1 m sequence is by being 2 to first required length
nThe operation that-1 m sequence is carried out one of cyclic shift left continuously generates.For example, the k in the group (1＜k≤2
n-1) required length is 2
n-1 m sequence can be by being 2 to first required length
n-1 m sequence is carried out k the operation of one of cyclic shift left continuously and is generated.
According to one embodiment of the present of invention, first required length is 2
5-1 m sequence can be set to [SR by 5 shift registers in the m sequence generator 300
1, SR
2..., SR
5]=[1,0 ..., 0] generate.First the required length that is generated is 2
5-1 m sequence is:
[0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1]
By the length that first is required is 2
5-1 m sequence is one of cyclic shift left, and can generate second required length is 2
5-1 m sequence is expressed as follows:
[0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0]
By being 2 with second required length
5-1 m sequence is one of cyclic shift left, and can generate the 3rd required length is 2
5-1 m sequence is expressed as follows:
[0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0]
This process is carried out always, is 2 up to having generated the one group of complete required length shown in the table 1
5Till-1 the m sequence.By for example in each sequence, adding (pre-pending) one 0 earlier and sequential element being resequenced, it is 32 * 32 Walsh-Hadamard matrix that table 1 can provide a size, in the process of carrying out the SSS Sequence Detection, it can support various algorithms, for example Fast W alsh-Hadamard matrixing.
| Sequence number | Sequence |
| 0 | 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 |
| 1 | 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 |
| 2 | 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 |
| 3 | 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 |
| 4 | 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 |
| 5 | 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 |
| 6 | 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 |
| 7 | 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 |
| 8 | 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 |
| 9 | 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 |
| 10 | 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 |
| 11 | 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 |
| 12 | 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 |
| 13 | 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 |
| 14 | 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 |
| 15 | 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 |
| 16 | 1 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 |
| 17 | 1 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 |
| 18 | 0 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 |
| 19 | 0 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 |
| 20 | 0 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 |
| 21 | 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 |
| 22 | 1 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 |
| 23 | 0 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 |
| 24 | 1 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 |
| 25 | 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 |
| 26 | 1 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 |
| 27 | 0 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 |
| 28 | 1 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 |
| 29 | 0 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 |
| 30 | 1 0 0 0 0 1 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 0 1 0 |
Table 1g (X)=X
5+ X
2+ 1 one group of required m sequence that generates
As shown in table 1, length is 2
5-12
5In-1 m sequence each all is that first length is 2
5-1 m sequence is the result of cyclic shift left.According to various embodiment of the present invention, one group of required length as shown in table 1 is 2
5-1 m sequence can be according to the order of determining by being 2 to first length
5-1 m sequence is set to [SR by initialization
1, SR
2..., SR
5]=[1,0 ..., 0] m sequence generator 300 continuously left cyclic shift generate.Add (pre-pending) one 0 and rearrangement earlier to each sequence after, a group length of generation is 2
5-12
5It is 32 * 32 Walsh-Hadamard matrix that-1 m sequence will be formed size, makes and can use Fast W alsh-Hadamard conversion in UE 130, with the lower computation complexity of realization in the associative operation that detects at SSS.
Fig. 4 is the flow chart according to the exemplary steps of the generation m sequence of a preferred embodiment of the present invention.As shown in Figure 4, exemplary steps starts from step 402, the n of m sequence generator such as m sequence generator 300 (n＞0) individual shift register stage or unit (SR) will be set to [SR by the content in n shift register stage or the unit as SR1 301a-SR5 301e
1, SR
2..., SR
N]=[1,0 ..., 0] carry out initialization.K is a parameter, and being used for mark one group length is 2
n-12
n-1 m sequence, its initial value can be k=0.
In step 404, first length is 2 in the group
n-1 m sequence can be from initial setting up [SR
1, SR
2..., SR
N]=[1,0 ..., 0] the middle generation.In step 406, with m sequence mark k and 2
n-1 compares, to determine that a complete group length is 2
n-12
nWhether-1 m sequence has generated and has finished.If k is less than 2
n-1, then in step 408, m sequence mark k will increase 1.In step 410, k m sequence can by with first m sequence continuously left cyclic shift k position generate.In addition, k m sequence can by with k-1 m sequence left one of cyclic shift generate.Return step 406 with last handling process.In step 406, if k is equal to or greater than 2
n-1, illustrate that then a complete group length is 2
n-12
n-1 m sequence has generated and has finished.Processing procedure ends at step 412.
The invention provides a kind of method and system that the synchronous signal sequence in the wireless system is sorted of being used for.According to various embodiment of the present invention, UE 130 can be from the base station eNodeB1 110a received signal for example.The signal of receiving is to comprise synchronizing signal PSS 210a and the such form of SSS 210b sends respectively.Being used for setting up the synchronous synchronizing sequence of downstream signal at UE 130 can carry by PSS 210a and SSS210b.For example, the PSS sequence can be used for setting up slot synchronization, and carries out the identification of physical layer cell ID in the cell ID group, and the SSS sequence can be used for carrying out frame synchronization, and is used from the detection of cell ID group in conjunction with PSS one.UE 130 can set up related determine PSS sequence and SSS sequence with possible candidate PSS sequence and SSS sequence by the signal that will receive.
Two m sequences in the m sequence that the SSS sequence can sort by one group of process that m sequence generator 300 is provided carry out cascade and interweave generating.UE 130 can adopt m sequence transformation method determine the sequence of receiving be above-mentioned one group through the ordering the m sequence in which.First m sequence in the m sequence of above-mentioned one group of process ordering can be set to [SR by the initial content in the shift register in the m sequence generator 300
1, SR
2..., SR
N]=[1,0 ..., 0] obtain.In the particular group m sequence subsequently the m sequence can by to first m sequence of generating continuously left cyclic shift generate.Generate through one group of m sequence (as shown in table 1) of ordering can each sequence in group add (pre-pending) one 0 earlier and to the sequence rearrangement that obtains after, form the Walsh-Hadamard matrix, Fast W alsh-Hadamard matrixing can be used to carry out the SSS Sequence Detection.
Another embodiment of the present invention provides a kind of machine and/or computer-readable memory and/or medium, machine code of storing on it and/or computer program have at least one can make machine and/or computer can carry out the step of the method and system that in wireless system synchronous signal sequence is sorted described herein by the code segment of machine and/or computer execution.
The present invention can pass through hardware, software, and perhaps soft, combination of hardware realizes.The present invention can realize with centralized system at least one computer system, perhaps be realized with dispersing mode by the different piece in the computer system that is distributed in several interconnection.Anyly can realize that the computer system of described method or miscellaneous equipment all are applicatory.The combination of software and hardware commonly used can be the general-purpose computing system that computer program is installed, and by installing and carry out described program-con-trolled computer system, it is moved by described method.In computer system, utilize processor and memory cell to realize described method.
The present invention can also implement by computer program, and described program comprises whole features that can realize the inventive method, when it is installed in the computer system, by operation, can realize method of the present invention.Computer program in the present specification refers to: one group of any expression formula of instructing that can adopt any program language, code or symbol to write, this instruction group makes system have information processing capability, with direct realization specific function, or after carrying out following one or two step, a) convert other Languages, code or symbol to; B) reproduce with different forms, realize specific function.
The present invention describes by several specific embodiments, it will be appreciated by those skilled in the art that without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, at particular condition or concrete condition, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the claim scope of the present invention.
Claims (10)
1, a kind of method of processing signals is characterized in that, comprising:
Go up reception from signal of base station at subscriber equipment (UE), this signal comprises synchronizing sequence; And,
Determine described synchronizing sequence based on one group among the described UE maximum length sequence (m sequence) through ordering.
2, method according to claim 1 is characterized in that, described synchronizing sequence is made up by one or more maximum length sequences (m sequence).
3, method according to claim 1 is characterized in that, described base station is the eUTRAN base station.
4, method according to claim 1 is characterized in that, described method also comprises calculates the described signal of receiving and described through the correlation between one group of maximum length sequence of ordering.
5, method according to claim 4 is characterized in that, described method also comprises based on the described correlation that calculates determines described synchronizing sequence.
6, method according to claim 1 is characterized in that, described one group of maximum length sequence through ordering is to obtain according to the order conversion of determining from a maximum length sequence (m sequence).
7, method according to claim 6 is characterized in that, described method also comprises from the initial setting [SR of n level m sequence generator
1, SR
2..., SR
n]=[1,0 ..., 0] and the described m sequence of passing through in the one group of maximum length sequence that sorts of middle generation, the length of the wherein said synchronizing sequence of receiving equals 2
n-1, n is a nonzero integer.
8, a kind of signal processing system is characterized in that, comprising:
One or more circuit are used for going up reception from signal of base station at subscriber equipment (UE), and this signal comprises synchronizing sequence; And,
Described one or more circuit is determined described synchronizing sequence based on one group among the described UE maximum length sequence (m sequence) through ordering.
9, system according to claim 8 is characterized in that, described synchronizing sequence is made up by one or more maximum length sequences (m sequence).
10, system according to claim 8 is characterized in that, described base station is the eUTRAN base station.
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|---|---|---|---|
| US99021807P | 2007-11-26 | 2007-11-26 | |
| US60/990,218 | 2007-11-26 | ||
| US61/095,454 | 2008-09-09 | ||
| US12/246,151 | 2008-10-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103458497A (en) * | 2012-05-31 | 2013-12-18 | 英特尔移动通信有限责任公司 | Generation of synchronization signal and secondary synchronization signal between communication end device and base station |
| CN109644063A (en) * | 2016-09-30 | 2019-04-16 | Lg 电子株式会社 | The method and device thereof of synchronization signal are sent and received in a wireless communication system |
| WO2021004335A1 (en) * | 2019-07-05 | 2021-01-14 | 大唐移动通信设备有限公司 | Synchronization signal transmitting method, terminal and apparatus, and storage medium |
| CN114024644A (en) * | 2021-11-02 | 2022-02-08 | 北京中科晶上科技股份有限公司 | Method and device for detecting auxiliary synchronization sequence |
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2008
- 2008-11-24 CN CNA2008101820290A patent/CN101515824A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458497A (en) * | 2012-05-31 | 2013-12-18 | 英特尔移动通信有限责任公司 | Generation of synchronization signal and secondary synchronization signal between communication end device and base station |
| CN103458497B (en) * | 2012-05-31 | 2017-08-25 | 英特尔德国有限责任公司 | Communication terminal device generation synchronous and auxiliary synchronous signals with base station |
| CN109644063A (en) * | 2016-09-30 | 2019-04-16 | Lg 电子株式会社 | The method and device thereof of synchronization signal are sent and received in a wireless communication system |
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| CN109644063B (en) * | 2016-09-30 | 2021-07-13 | Lg 电子株式会社 | Method for transmitting and receiving synchronization signal in wireless communication system and apparatus therefor |
| US11388688B2 (en) | 2016-09-30 | 2022-07-12 | Lg Electronics Inc. | Method for transmitting and receiving synchronization signal in wireless communication system and apparatus for method |
| WO2021004335A1 (en) * | 2019-07-05 | 2021-01-14 | 大唐移动通信设备有限公司 | Synchronization signal transmitting method, terminal and apparatus, and storage medium |
| CN114024644A (en) * | 2021-11-02 | 2022-02-08 | 北京中科晶上科技股份有限公司 | Method and device for detecting auxiliary synchronization sequence |
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