CN101882944B - Method and device for combining multi-path searching results - Google Patents
Method and device for combining multi-path searching results Download PDFInfo
- Publication number
- CN101882944B CN101882944B CN201010218221.8A CN201010218221A CN101882944B CN 101882944 B CN101882944 B CN 101882944B CN 201010218221 A CN201010218221 A CN 201010218221A CN 101882944 B CN101882944 B CN 101882944B
- Authority
- CN
- China
- Prior art keywords
- dpcch
- search
- routine
- little
- result
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a method and a device for combining multi-path searching results. The method comprises the following steps of: carrying out a big conventional search on a DPCCH (Dedicated Physical Control Channel) and carrying out a small conventional search on an E-DPCCH (Enhanced Dedicated Physical Control Channel) and the DPCCH; determining a compensation coefficient according to the result of the small conventional search on the E-DPCCH and the DPCCH; compensating the result of the big conventional search by using the compensation coefficient; and combining the compensating result of the big conventional search with the result of the small conventional search which is carried out on the E-DPCCH. The invention improves system performance.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of merging method and device of multi-path searching results.
Background technology
UE is by wireless channel to base station transmit signals, and wireless channel has the characteristics such as decline and multipath transmisstion.The signal that base station receives as receiver is the signal after the mulitpath stack of reflection, diffraction, scattering etc., and this will certainly affect the performance of system.
In order to improve the performance of system, generally at receiving terminal, adopt Rake (RAKE) receiver, to merge multipath signal.In Rake receiver, searcher module plays an important role, and it is for providing the information such as position, energy, number in footpath in interior multipath information.Especially for novel generalized rake (GRAKE) receiver, the order of accuarcy of multipath energy can affect systematic function greatly.Therefore, in real system, when starting GRAKE receiver, in order to guarantee to search for precision, searcher module will strengthen Dedicated Physical Control Channel (Enhanced Dedicated Physical Control Channel according to the signal to noise ratio of control channel, referred to as E-DPCCH) and Dedicated Physical Control Channel (Dedicated Physical Control Channel, referred to as DPCCH) interchannel is selected or these two control channels of dual-purpose complete Multipath searching.
In correlation technique, the searching method that provides a kind of conventional large search and conventional little search to combine.Wherein, conventional large search refers to the larger module of width of search window, and conventional little search is the less module of width of search window.The search cycle of conventional large search is long, searches for the wide of the more conventional little search of window, and object is to cover a multipath in wider scope; The search cycle of conventional little search is short, to guarantee the search precision of the multipath that energy is larger.After each conventional little search finishes, the result of conventional large search and conventional little search is merged, the result after merging is as final searcher output.The advantage of doing is like this to guarantee higher search precision.
But when the method is applied to GRAKE receiver, for guaranteed performance, the more multipath information of pinpoint accuracy need to be provided, if now use E-DPCCH channel, do search more high-precision multipath information can be provided, but need more searching resource like this.When starting GRAKE receiver, due to relatively high to the requirement of channel circumstance, now conventional large search is significant when searching strong footpath outside window of conventional little search, if search weak footpath, receiver is had little significance.For this situation, when starting GRAKE receiver, can make conventional large search only on DPCCH channel, search for, thereby save searcher resource.
But, inventor finds, if adopt above-mentioned method, be that conventional large search is only searched on DPCCH channel, conventional little search is searched on DPCCH and/or E-DPCCH, when conventional large search and conventional little search are used in conjunction with, there will be following problem: generally, E-DPCCH channel energy is more many by force than DPCCH channel energy, therefore, the conventional multipath energy of large search and the multipath energy of conventional little search be not on the same order of magnitude, and this can cause the amalgamation result of conventional large search and conventional little search inaccurate, has affected the performance of system.
Summary of the invention
Main purpose of the present invention is to provide a kind of merging method and device of multi-path searching results, at least to address the above problem.
One aspect of the present invention provides a kind of merging method of multi-path searching results, comprising: on special used for physical control channel DPCCH, carry out conventional large search, and carry out conventional little search on enhancing Dedicated Physical Control Channel E-DPCCH and DPCCH; According to the result of the little search of routine on E-DPCCH and DPCCH, determine penalty coefficient; Adopt penalty coefficient to compensate the result of conventional large search; The result of the conventional large search after compensation and the result of the little search of routine of carrying out on E-DPCCH are merged.
Further, according to the result of the little search of routine on E-DPCCH and DPCCH, determine that penalty coefficient comprises: according to the result of the predetermined process step in the little search of the routine on E-DPCCH and DPCCH, determine penalty coefficient, wherein, predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
Further, according to the result of the little search of routine on E-DPCCH and DPCCH, determine that penalty coefficient comprises: determine penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch), wherein, Max_edpcch is the maximal correlation accumulated value that carries out the E-DPCCH channel of conventional little search acquisition on E-DPCCH, T_edpcch carries out multi-path threshold value corresponding to E-DPCCH channel that conventional little search obtains on E-DPCCH, Max_dpccn is the maximal correlation accumulated value that carries out the DPCCH channel of conventional little search acquisition on DPCCH, T_dpcch carries out multi-path threshold value corresponding to DPCCH channel that conventional little search obtains on DPCCH.
Further, at definite penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch) before, also comprise: whether search multipath in the little search of routine of judgement on E-DPCCH; If the determination result is NO, determine R=1; If the determination result is YES, judge in the little search of routine on DPCCH whether search multipath, if not, determine R=1, if so, continue subsequent treatment.
Further, in the little search of the routine of judgement on E-DPCCH, whether searching multipath comprises: judge whether to meet Max_edpcch > T_edpcch, if, in the little search of the routine on E-DPCCH, search multipath, otherwise the little search of routine on E-DPCCH does not search multipath; In the little search of the routine of judgement on DPCCH, whether searching multipath comprises: judge whether to meet Max_dpcch > T_dpcch, if, in the little search of the routine on DPCCH, search multipath, otherwise the little search of routine on DPCCH does not search multipath.
Further, adopt penalty coefficient that the result of conventional large search is compensated and comprised: multipath energy and penalty coefficient that conventional large search is obtained multiply each other, obtain the multipath energy after conventional large search compensation.
Further, the result of the little search of routine in basis on E-DPCCH and DPCCH, before determining penalty coefficient, also comprise: according to the result of the predetermined process step in the little search of the routine on E-DPCCH and DPCCH, determine and on E-DPCCH, complete conventional little search, wherein, predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
Further, the result of the conventional large search after compensation and the result merging of the little search of routine of carrying out on E-DPCCH are comprised: the result of the conventional large search after compensation and the final result of the little search of routine completing on E-DPCCH are merged.
Another aspect of the present invention provides a kind of merging device of multi-path searching results, and this device comprises: conventional large search module, for carry out conventional large search on DPCCH; Conventional little search module, for carrying out conventional little search on E-DPCCH and DPCCH; Coefficient determination module, for according to the result of the little search of routine on E-DPCCH and DPCCH, determines penalty coefficient; Compensating module, for adopting penalty coefficient to compensate the result of conventional large search; Merge module, for the result of the conventional large search after compensation and the result of the little search of routine of carrying out are merged on E-DPCCH.
Further, coefficient determination module comprises: the first determination module, for determining penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch), wherein, Max_edpcch is the maximal correlation accumulated value that carries out the E-DPCCH channel of conventional little search acquisition on E-DPCCH, T_edpcch carries out multi-path threshold value corresponding to E-DPCCH channel that conventional little search obtains on E-DPCCH, Max_dpcch is the maximal correlation accumulated value that carries out the DPCCH channel of conventional little search acquisition on DPCCH, T_dpcch carries out multi-path threshold value corresponding to DPCCH channel that conventional little search obtains on DPCCH.
Further, coefficient determination module also comprises: the first judge module, for judging whether the little search of routine on E-DPCCH searches multipath; The first scheduler module, in the situation that the first judge module the determination result is NO, scheduling the second determination module, judgment result is that be in the situation that, scheduling the second judge module; The second determination module, for determining R=1; The second judge module, for judging whether the little search of routine on DPCCH searches multipath; The second scheduler module, in the situation that the second judge module the determination result is NO, scheduling the 3rd determination module, in the situation that judgment result is that of the second judge module be, scheduling the first determination module; The 3rd determination module, for determining R=1.
Further, conventional little search module is the result of the predetermined process step of the little search of routine on E-DPCCH and DPCCH for basis also, determine and on E-DPCCH, complete conventional little search, wherein, predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
By the present invention, employing is determined penalty coefficient according to the Search Results of the little search of routine, according to this penalty coefficient, the result of conventional large search is compensated, again the result of the conventional large search after compensation and the result of the little search of routine of carrying out on E-DPCCH are merged, solved the inaccurate problem that causes systematic function to decline of amalgamation result in correlation technique, improve the accuracy of amalgamation result, improved systematic function.
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 flow chart of the merging method of the multi-path searching results of the embodiment of the present invention;
Fig. 2 is according to the structured flowchart of the merging device of the multi-path searching results of the embodiment of the present invention;
Fig. 3 is according to the preferred structure block diagram one of the merging device of the multi-path searching results of the embodiment of the present invention;
Fig. 4 is according to the preferred structure block diagram two of the merging device of the multi-path searching results of the embodiment of the present invention;
Fig. 5 is according to the schematic diagram of the multipath energy compensation process of the embodiment of the present invention 2;
Fig. 6 is according to the detail flowchart of the multipath energy compensation process of the embodiment of the present invention 2.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Fig. 1 is that the method comprises according to the flow chart of the merging method of the multi-path searching results of the embodiment of the present invention:
Step S102 carries out conventional large search on DPCCH, and on E-DPCCH and DPCCH, carries out conventional little search;
Step S104, according to the result of the little search of routine on E-DPCCH and DPCCH, determines penalty coefficient;
Step S106, adopts penalty coefficient to compensate the result of conventional large search;
Step S108, merges the result of the conventional large search after compensation and the result of the little search of routine of carrying out on E-DPCCH.
In correlation technique, conventional large search carries out on DPCCH, and conventional little search when carry out on E-DPCCH, because E-DPCCH channel energy is conventionally many by force than DPCCH channel energy, therefore, the conventional multipath energy of large search and the multipath energy of conventional little search be not on the same order of magnitude, and this can cause the amalgamation result of conventional large search and conventional little search inaccurate, has affected the performance of system.In the method that the embodiment of the present invention provides, after utilizing penalty coefficient to compensate the result of conventional large search, then the method merging, improve the accuracy of amalgamation result, thereby improved the performance of system.
Preferably, step S104 comprises: according to the result of the predetermined process step in the little search of the routine on E-DPCCH and DPCCH, determine penalty coefficient, wherein, predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
It should be noted that, the above resulting result of predetermined process step is the intermediate object program of conventional little search procedure, according to this intermediate object program, can judge on which channel, to complete conventional little search, although all completing conventional little search on two kinds of channels also can realize, but, according to intermediate object program select the to have come method of search, can save the searching resource of system above, improve the operational efficiency of system.
Preferably, step S104 specifically comprises: determine penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch), wherein, Max_edpcch is the maximal correlation accumulated value that carries out the E-DPCCH channel of conventional little search acquisition on E-DPCCH, T_edpcch carries out multi-path threshold value corresponding to E-DPCCH channel that conventional little search obtains on E-DPCCH, Max_dpcch is the maximal correlation accumulated value that carries out the DPCCH channel of conventional little search acquisition on DPCCH, T_dpcch carries out multi-path threshold value corresponding to DPCCH channel that conventional little search obtains on DPCCH.In the method, the coefficient adopting is to have utilized the Search Results that carries out conventional little search before, does not need to carry out obtaining or detecting step of other, and it is convenient to realize, and result is more accurate.
Preferably, Max_edpcch is identical with the corresponding footpath of T_dpcch with Max_dpcch with the corresponding footpath of T_edpcch, and now, definite coefficient is more accurate.Or, also can calculate a plurality of coefficients according to a plurality of footpaths each self-corresponding Max_edpcch, T_edpcch, Max_dpcch and T_dpcch, then these a plurality of coefficients are weighted on average, thereby obtain final penalty coefficient.Can improve further the accuracy of calculating.
Preferably, at definite penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch) before, also comprise: whether search multipath in the little search of routine of judgement on E-DPCCH; If the determination result is NO, determine R=1; If the determination result is YES, judge in the little search of routine on DPCCH whether search multipath, if not, determine R=1, if so, continue subsequent treatment.
By this method, in the situation that all search multipath in the little search of routine on DPCCH and E-DPCCH, R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch) formula calculates penalty coefficient in employing, in the situation that do not search multipath in the little search of routine on DPCCH and/or E-DPCCH, make R=1, the result of conventional large search is not compensated, considered the various possible situation in conventional little search, system robustness is higher.
Preferably, in the little search of the routine of judgement on E-DPCCH, whether searching multipath comprises: judge whether to meet Max_edpcch > T_edpcch, if, in the little search of the routine on E-DPCCH, search multipath, otherwise the little search of routine on E-DPCCH does not search multipath; In the little search of the routine of judgement on DPCCH, whether searching multipath comprises: judge whether to meet Max_dpcch > T_dpcch, if, in the little search of the routine on DPCCH, search multipath, otherwise the little search of routine on DPCCH does not search multipath.In the method, adopt multipath discrimination standard whether to have the judgement of multipath, the coefficient adopting is to have utilized the Search Results that carries out conventional little search before, does not need to carry out obtaining or detecting step of other, and it is convenient to realize.
Preferably, step S108 comprises: multipath energy and penalty coefficient that conventional large search is obtained multiply each other, and obtains the multipath energy after conventional large search compensation.It should be noted that, also can adopt other method to compensate the multipath energy of conventional large search, for example, mode that employing weighting is multiplied each other etc., only adopts the method directly multiplying each other to implement than being easier to.
Preferably, before step S104, also comprise: according to the result of the predetermined process step in the little search of the routine on E-DPCCH and DPCCH, determine and on E-DPCCH, complete conventional little search, wherein, predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.By the method, prevent from, in the situation that having selected to complete conventional little search on DPCCH, conventional large search result being compensated, avoided unnecessary compensation, improved the robustness of system.
Preferably, step S108 comprises: the result of the conventional large search after compensation and the final result of the little search of routine completing on E-DPCCH are merged.
Fig. 2 is according to the structured flowchart of the merging device of the multi-path searching results of the embodiment of the present invention, comprising: conventional large search module 20, for carry out conventional large search on DPCCH; Conventional little search module 22, for carrying out conventional little search on E-DPCCH and DPCCH; Coefficient determination module 24, for according to the result of the little search of routine on E-DPCCH and DPCCH, determines penalty coefficient; Compensating module 26, for adopting penalty coefficient to compensate the result of conventional large search; Merge module 28, for the result of the conventional large search after compensation and the result of the little search of routine of carrying out are merged on E-DPCCH.
Fig. 3 is according to the preferred structure block diagram one of the merging device of the multi-path searching results of the embodiment of the present invention, coefficient determination module 24 comprises: the first determination module 32, for determining penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch), wherein, Max_edpcch is the maximal correlation accumulated value that carries out the E-DPCCH channel of conventional little search acquisition on E-DPCCH, T_edpcch carries out multi-path threshold value corresponding to E-DPCCH channel that conventional little search obtains on E-DPCCH, Max_dpcch is the maximal correlation accumulated value that carries out the DPCCH channel of conventional little search acquisition on DPCCH, T_dpcch carries out multi-path threshold value corresponding to DPCCH channel that conventional little search obtains on DPCCH.
Fig. 4 is according to the preferred structure block diagram two of the merging device of the multi-path searching results of the embodiment of the present invention, and preferably, coefficient determination module 24 can also comprise: the first judge module 40, for judging whether the little search of routine on E-DPCCH searches multipath; The first scheduler module 41, in the situation that the first judge module 40 the determination result is NO, scheduling the second determination module 42, judgment result is that be in the situation that, scheduling the second judge module 43; The second determination module 42, for determining R=1; The second judge module 43, for judging whether the little search of routine on DPCCH searches multipath; The second scheduler module 44, in the situation that the second judge module 43 the determination result is NO, scheduling the 3rd determination module 45, in the situation that the second judgment result is that of judge module 43 be, scheduling the first determination module 32; The 3rd determination module 45, for determining R=1.
Preferably, conventional little search module 22 is the result of the predetermined process step of the little search of routine on E-DPCCH and DPCCH for basis also, determine and on E-DPCCH, complete conventional little search, wherein, predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
Embodiment 1 to 2 described below, combines the technical scheme of above-mentioned a plurality of preferred embodiments.
Embodiment 1
In this embodiment, the way of search that adopts conventional large search to be combined with conventional little search, wherein conventional large search is only searched on DPCCH channel, conventional little search is depending on the situation of receiver, in the situation of GRAKE receiver, conventional little search is selected at DPCCH and E-DPCCH interchannel, and DPCCH signal to noise ratio height selects DPCCH to complete search, otherwise just selects E-DPCCH to search for.
When GRAKE receiver starts, conventional large search is only used DPCCH channel search, and in the conventional large search situation different with conventional little search channel used, by energy compensating, can avoid because of multipath energy problems affect systematic function.The process that energy compensating and energy merge specifically comprises the following steps:
Step 1, the Multipath searching task of carrying out conventional large search obtains the multipath information of conventional large search.
Step 2, carry out the Multipath searching task of conventional little search, intermediate object program according to the little search of routine on DPCCH and E-DPCCH (for example, in relevant accumulation, filtering, thresholding result of calculation one of at least), judge conventional little search completes search on which channel, if complete search on DPCCH, what show that conventional little search and conventional large search use is the data of same channel, there is not the imbalance of energy, need not compensate; If the data of use are the search datas completing on E-DPCCH channel, proceed to step 3.
Step 3, in the little search module of routine, find the E-DPCCH channel maximal correlation accumulated value obtaining in carrying out Multipath searching task, according to multipath discrimination standard, judge the whether corresponding multipath of this value, if not, show that in conventional little search, E-DPCCH search not can not find multipath, not to conventional large search result compensation; If so, proceed to step 4.
Step 4, in the little search module of routine, find the DPCCH channel maximal correlation accumulated value obtaining in carrying out Multipath searching task, according to multipath discrimination standard, judge the whether corresponding multipath of this value, if not, show that in conventional little search, DPCCH search not can not find multipath, not to conventional large search result compensation; If so, proceed to step 5.
Step 5, the DPCCH channel maximal correlation accumulated value being obtained by step 3 and step 4 and E-DPCCH channel maximal correlation accumulated value, and according to corresponding multipath discrimination standard, by division arithmetic, obtain the energy ratio of E-DPCCH search and DPCCH search, by way of compensation coefficient.
Step 6, the multipath energy in the multipath information that conventional large search is obtained is multiplied by the penalty coefficient that step 5 obtains, and product is as the multipath energy in conventional large search multipath information.
Step 7, merges the multipath energy of conventional large search and the multipath energy of the little search of routine in E-DPCCH after compensation.
Embodiment 2
Fig. 5 is according to the schematic diagram of the multipath energy compensation process of the embodiment of the present invention 2, as shown in Figure 5, conventional little search is carried out Multipath searching to DPCCH and E-DPCCH channel first respectively, the detailed process of search includes but not limited to that relevant accumulation, filtering, thresholding calculate, wherein relevant accumulation, filtering etc. are all conventional ways, no longer describe in detail.Obtained after the intermediate search results of conventional little search, according to this result, selected a path channels to complete search, and try to achieve large search penalty coefficient according to this result, utilized this coefficient to carry out energy compensating to the Search Results of conventional large search.
It should be noted that, when GRAKE receiver starts, have E-DPCCH and process Yi road, in RAKE receiver, there is no this road, directly select DPCCH search.
Below in conjunction with Fig. 6, concrete multipath energy compensation process is described in detail, comprises the following steps:
Step 601, judges conventional little search is to complete search on which channel.RAKE receiver only has DPCCH search, and GRAKE receiver is selected between DPCCH search and E-DPCCH search, comprehensive two kinds of receivers, if searched for DPCCH, putting penalty coefficient is 1;
Step 602, if select E-DPCCH search, records the maximal correlation accumulated value Max_edpcch of E-DPCCH channel, and records the multi-path threshold value T_edpcch that this channel is corresponding;
Step 603, whether the Max_edpcch in determining step 602 is greater than T_edpcch, be to enter step 604, otherwise put penalty coefficient, be 1;
Step 604, although select E-DPCCH search, now DPCCH channel is abandoned because its signal to noise ratio is low, key data is all with computing.Similar with step 602, record the maximum Max_dpcch of DPCCH channel and threshold T _ dpcch corresponding to this channel;
Step 605, similar with step 603, whether the Max_dpcch in determining step 604 is greater than T_dpcch, is to enter step 606, otherwise put penalty coefficient, is 1;
Step 606, the ratio of the difference of calculation procedure 604 and step 602 income value, i.e. (Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch) be coefficient by way of compensation;
Step 607, comprehensive step 603,605,606 result is compensated coefficient;
Step 608, the multipath energy in the multipath set that conventional large search is obtained is multiplied by the penalty coefficient that step 607 obtains, and result of product is the multipath energy in final large search multipath set.
The method is only used DPCCH channel in conventional large search module, when starting GRAKE receiver, saving searching resource that can be larger, in saving resource, avoid the problem of bringing thus as far as possible, guaranteed to a certain extent the systematic function of GRAKE receiver.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
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 (11)
1. a merging method for multi-path searching results, is characterized in that, comprising:
On special used for physical control channel DPCCH, carry out conventional large search, and carry out conventional little search on enhancing Dedicated Physical Control Channel E-DPCCH and described DPCCH, wherein, the search window width of the little search of the more described routine of search window of described conventional large search, the search cycle of the little search of more described routine of search cycle of described conventional large search is long;
According to the result of the little search of routine on described E-DPCCH and described DPCCH, determine penalty coefficient, wherein, according to the result of the little search of routine on described E-DPCCH and described DPCCH, determine that penalty coefficient comprises: in the situation that all search multipath in the little search of routine on described E-DPCCH and described DPCCH, determine described penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch), in the little search of routine on described E-DPCCH, search multipath, but in the situation that do not search multipath in the little search of routine on described DPCCH, determine R=1, wherein, Max_edpcch is the maximal correlation accumulated value that carries out the described E-DPCCH channel of conventional little search acquisition on described E-DPCCH, T_edpcch carries out multi-path threshold value corresponding to described E-DPCCH channel that conventional little search obtains on described E-DPCCH, Max_dpcch is the maximal correlation accumulated value that carries out the described DPCCH channel of conventional little search acquisition on described DPCCH, T_dpcch carries out multi-path threshold value corresponding to described DPCCH channel that conventional little search obtains on described DPCCH,
Adopt described penalty coefficient to compensate the result of described conventional large search;
The result of the described conventional large search after compensation and the result of the little search of described routine of carrying out on described E-DPCCH are merged.
2. method according to claim 1, is characterized in that, according to the result of the little search of routine on described E-DPCCH and described DPCCH, determines that penalty coefficient comprises:
According to the result of the predetermined process step in the little search of routine on described E-DPCCH and described DPCCH, determine described penalty coefficient, wherein, described predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
3. method according to claim 1, is characterized in that, according to the result of the little search of routine on described E-DPCCH and described DPCCH, determines that penalty coefficient comprises:
In the situation that do not search multipath in the little search of routine on described E-DPCCH, determine R=1.
4. according to the method described in claim 1 or 3, it is characterized in that,
In the little search of the routine of judgement on described E-DPCCH, whether searching multipath comprises: judge whether to meet Max_edpcch>T_edpcch, if, in the little search of the routine on described E-DPCCH, search multipath, otherwise the little search of routine on described E-DPCCH does not search multipath;
In the little search of the routine of judgement on described DPCCH, whether searching multipath comprises: judge whether to meet Max_dpcch>T_dpcch, if, in the little search of the routine on described DPCCH, search multipath, otherwise the little search of routine on described DPCCH does not search multipath.
5. according to the method in any one of claims 1 to 3, it is characterized in that, adopt described penalty coefficient that the result of described conventional large search is compensated and comprised:
Multipath energy and described penalty coefficient that described conventional large search is obtained multiply each other, and obtain the multipath energy after described conventional large search compensation.
6. method according to claim 4, is characterized in that, adopts described penalty coefficient that the result of described conventional large search is compensated and comprised:
Multipath energy and described penalty coefficient that described conventional large search is obtained multiply each other, and obtain the multipath energy after described conventional large search compensation.
7. method according to claim 1, is characterized in that, the result of the little search of routine in basis on described E-DPCCH and described DPCCH, before determining penalty coefficient, also comprises:
According to the result of the predetermined process step in the little search of routine on described E-DPCCH and described DPCCH, determine and on described E-DPCCH, complete the little search of described routine, wherein, described predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
8. method according to claim 7, is characterized in that, the result of the described conventional large search after compensation and the result merging of the little search of described routine of carrying out on described E-DPCCH are comprised:
The result of the described conventional large search after compensation and the final result of the little search of described routine completing on described E-DPCCH are merged.
9. a merging device for multi-path searching results, is characterized in that, comprising:
Conventional large search module, for carrying out conventional large search on DPCCH;
Conventional little search module, for carry out conventional little search on E-DPCCH and described DPCCH, wherein, the search window width of the little search of the more described routine of search window of described conventional large search, the search cycle of the little search of more described routine of search cycle of described conventional large search is long;
Coefficient determination module, the result of the little search of routine for basis on described E-DPCCH and described DPCCH, determine penalty coefficient, wherein, described coefficient determination module is in the situation that the little search of routine on described E-DPCCH and described DPCCH all searches multipath, determines described penalty coefficient R=(Max_edpcch-T_edpcch)/(Max_dpcch-T_dpcch), in the little search of routine on described E-DPCCH, search multipath, but in the situation that do not search multipath in the little search of routine on described DPCCH, determine R=1, wherein, Max_edpcch is the maximal correlation accumulated value that carries out the described E-DPCCH channel of conventional little search acquisition on described E-DPCCH, T_edpcch carries out multi-path threshold value corresponding to described E-DPCCH channel that conventional little search obtains on described E-DPCCH, Max_dpcch is the maximal correlation accumulated value that carries out the described DPCCH channel of conventional little search acquisition on described DPCCH, T_dpcch carries out multi-path threshold value corresponding to described DPCCH channel that conventional little search obtains on described DPCCH,
Compensating module, for adopting described penalty coefficient to compensate the result of described conventional large search;
Merge module, for the result of the described conventional large search after compensation and the result of the little search of described routine of carrying out are merged on described E-DPCCH.
10. device according to claim 9, is characterized in that, described coefficient determination module, in the situation that the little search of routine on described E-DPCCH does not search multipath, is determined R=1.
11. devices according to claim 9, it is characterized in that, the little search module of described routine is the result of the predetermined process step of the little search of routine on described E-DPCCH and described DPCCH for basis also, determine and on described E-DPCCH, complete the little search of described routine, wherein, described predetermined process step comprise following one of at least: relevant accumulation, filtering, thresholding calculate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010218221.8A CN101882944B (en) | 2010-06-29 | 2010-06-29 | Method and device for combining multi-path searching results |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010218221.8A CN101882944B (en) | 2010-06-29 | 2010-06-29 | Method and device for combining multi-path searching results |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101882944A CN101882944A (en) | 2010-11-10 |
| CN101882944B true CN101882944B (en) | 2014-04-30 |
Family
ID=43054857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010218221.8A Expired - Fee Related CN101882944B (en) | 2010-06-29 | 2010-06-29 | Method and device for combining multi-path searching results |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101882944B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378874B (en) * | 2012-04-12 | 2015-06-10 | 中兴通讯股份有限公司 | Multipath searching method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459928A (en) * | 2002-05-20 | 2003-12-03 | 上海贝尔有限公司 | Ruike receiver multipath searching device using energy readjust and multipath searching method |
| KR20060091668A (en) * | 2005-02-16 | 2006-08-21 | 엘지전자 주식회사 | Receiver with tap location variable adaptive equalizer and method for adaptive equalizing of multi path signal using the same |
| CN101162914A (en) * | 2006-10-10 | 2008-04-16 | 中科院嘉兴中心微系统所分中心 | Search precision-adjustable Rake receiver and implementing method thereof |
| CN101610099A (en) * | 2009-07-21 | 2009-12-23 | 深圳华为通信技术有限公司 | The implementation method of Multipath searching and device, receiving system |
| CN101662307A (en) * | 2009-09-30 | 2010-03-03 | 中兴通讯股份有限公司 | Multi-path searching method of code division multiple access (CDMA) system and corresponding multi-path searcher |
| CN101667848A (en) * | 2009-09-30 | 2010-03-10 | 中兴通讯股份有限公司 | Method and device for multi-path searching in CDMA (code-division multiple access) system |
-
2010
- 2010-06-29 CN CN201010218221.8A patent/CN101882944B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459928A (en) * | 2002-05-20 | 2003-12-03 | 上海贝尔有限公司 | Ruike receiver multipath searching device using energy readjust and multipath searching method |
| KR20060091668A (en) * | 2005-02-16 | 2006-08-21 | 엘지전자 주식회사 | Receiver with tap location variable adaptive equalizer and method for adaptive equalizing of multi path signal using the same |
| CN101162914A (en) * | 2006-10-10 | 2008-04-16 | 中科院嘉兴中心微系统所分中心 | Search precision-adjustable Rake receiver and implementing method thereof |
| CN101610099A (en) * | 2009-07-21 | 2009-12-23 | 深圳华为通信技术有限公司 | The implementation method of Multipath searching and device, receiving system |
| CN101662307A (en) * | 2009-09-30 | 2010-03-03 | 中兴通讯股份有限公司 | Multi-path searching method of code division multiple access (CDMA) system and corresponding multi-path searcher |
| CN101667848A (en) * | 2009-09-30 | 2010-03-10 | 中兴通讯股份有限公司 | Method and device for multi-path searching in CDMA (code-division multiple access) system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101882944A (en) | 2010-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6229842B1 (en) | Adaptive path selection threshold setting for DS-CDMA receivers | |
| CN1139277C (en) | Method for setting search window size for mobile station in cellular | |
| US6763056B1 (en) | Path timing detection circuit and detection method thereof | |
| US8098780B2 (en) | Rake receiver finger assignment based on signal path concentration | |
| CN1695316A (en) | Robust delay estimation architecture | |
| JP2005072927A (en) | Cdma receiving device, cdma receiving method, cdma receiving program, and program recording medium | |
| CN1277420C (en) | Code division multiple access receiving method and receiver | |
| CN101336518A (en) | Method and apparatus for multi-resolution/multipath | |
| CN101594170B (en) | Wireless communication method and system for assigning multi-paths to rake receiver fingers | |
| KR100458665B1 (en) | Cdma receiver, path search method and computer-readable storage medium having program for executing path search method recorded thereon | |
| CN101072046B (en) | Multi-path selecting method and receiver | |
| CN101882944B (en) | Method and device for combining multi-path searching results | |
| CN102904605B (en) | Method and device for determining multipath information and rake receiver | |
| CN1893295A (en) | Sub-system based window placement and size decision mechanism and method thereof | |
| US7113538B1 (en) | Time diversity searcher and scheduling method | |
| CN100518001C (en) | Method of and apparatus for path-searcher window positioning | |
| CN100459764C (en) | Method and system for estimating and regulating mobile terminal frequency deviation | |
| US20030165132A1 (en) | System and method to adjust searcher threshold parameter of rake receiver | |
| JP2003158474A (en) | Cdma receiver, its base station and method for detecting reception timing for inversely spreading received signal thereof | |
| US7903723B2 (en) | Selecting delay values for a rake receiver | |
| CN1980086B (en) | Method for random accessing message demodulation | |
| EP1628409A1 (en) | A power level measuring device and a mobile station | |
| CN101164246B (en) | Method for selecting delay values for a rake receiver and the rake receiver | |
| KR100540573B1 (en) | Handover method of mobile communication system | |
| EP1672808B1 (en) | Selecting peak delay values for a RAKE receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20190629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |