CN1757178A - Received communication signal processing methods and components for wireless communication equipment - Google Patents
Received communication signal processing methods and components for wireless communication equipment Download PDFInfo
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Abstract
A wireless transmit receive unit (WTRU) and methods are used in a wireless communication system to process sampled received signals to establish and/or maintain wireless communications. A selectively controllable coherent accumulation unit produces power delay profiles. A selectively controllable post processing unit passes threshold qualified magnitude approximation values and PDP positions to a device such as a rake receiver to determine receive signal paths.
Description
Invention field
The present invention is relevant Wireless Telecom Equipment method and composition, and especially about starting and keep method of wireless communication and composition.
Background technology
Wireless communication system is known in technical field.For the continuous property in the whole world that wireless system is provided, be development and implementation criteria.The known standard system whole world action telecommunication system (GSM) that one of is extensive use of at present.This is regarded as second generation mobile radio system standard (2G) and follows its revised edition (2.5G).GPRS and EDGE provide the 2.5G technology of quite high data, services on (2G) whole world action telecommunication system network.Each improves previous standard with attendant features and reinforcement these technology.In January, 1998, European Telecommunication Standard mechanism-special operation group (ETSI SMG) agrees that the radio access scheme of third generation mobile radio system is called whole world action telecommunication system (UMTS).In order further to be embodied as whole world action telecommunication system standard, third generation partner plan (3GPP) is formed in December, 1998.3GPP continues to operate on the shared third generation mobile radio standard.
Typical UMTS system architecture according to present 3GPP specification is to be depicted in Fig. 1.The UMTS network architecture comprises core network (CN), its be via be known as by specific definition in now openly the interface of the Iu in the 3GPP specification file interconnected with UMTS Universal/UMTS Terrestrial Radio Access Network (UTRAN) (UTRAN).UTRAN system is configured via the wave point that is known as Uu, provides wireless telecommunication services to the user by the wireless transmission receiving element (WTRUs) that is known as the user's equipment (UEs) among the 3GPP.UTRAN has the radio network controller (RNCs) and the base station of the Node B among the one or more 3GPP of being known as, and it can compile provides the area to contain the devices communicating with the user.One or more Node B are to be connected to each radio network controller via the Iub that is known as among the 3GPP.UTRAN can have some Node B groups that are connected to the different networks controller; Two systems are shown in the example shown in Figure 1.Surpass a radio network controller and be provided among the UTRAN, the communication system between radio network controller is carried out via the Iur interface.
The communication system that external network is formed connects by the Node B on the standard of user position and via the various CN to external system via the Uu interface to be carried out by the CN on Uu interface and the network level.
Usually, the base station major function as Node B is the wireless connections that provide between base station network and wireless transmission receiving element.Usually, base station sends to impel and is not connected wireless transmission receiving element and the synchronous shared channel signals of base station time point.Among the 3GPP, Node B is carried out and is connected with the actual wireless of user's equipment.Node B lies in the signal that receives on the Iub interface from radio network controller, and it can control the wireless signal that is transmitted by Node B on the Uu interface.
Core network system is responsible for transmission information to its correct object.For example, core network can transmit the sound news that received by UMTS via one of Node B from user's equipment and is engaged in to public translation telephone network (PSTN) or is intended for the packet information of internet.Among the 3GPP, core network has six main compositions: 1) provide general General Packet Radio Service (GPRS) (GPRS) support node; 2) Gateway GPRS Support Node; 3) borde gateway; 4) visitor's location cache; 5) action service switching center; And 6) gateway action service switching center.Provide GPRS Support Node system to provide to change the access in field as the package of internet.Gateway GPRS Support Node is the gateway node that connects other network.All data traffic systems that advance to other operational network or internet pass through GPRS Support Node.Borde gateway can be as the fire compartment wall of avoiding being attacked by the user network outside invasion person in the network field.Visitor's location cache is the existing network that provides that the user data of service need be provided ' duplicate '.This information is at first from administrative actions user's data storehouse.Action service switching center system is responsible for from the UMTS terminal to network ' circuit conversion ' connect.Gateway action service switching center system carries out based on user's present position and transmits required function.Gateway action service also from external network receive and management from user's connection request.
The built-in function of the common may command UTRAN of radio network controller.Radio network controller also provides to form via the connection of Uu interface and Node B and external service and communicate by letter and have the zone composition, reach via the connection between core network and external system and have and serve the intermediary sevices of forming, as the global call of making from the handset of domestic UMTS.
Usually radio network controller can monitor multiple base station, the Radio Resource in the wireless service coverage rate geographic area that management node B is served, and control is used for the actual radio resources of Uu interface.Among the 3GPP, the Iu interface of radio network controller system provides two connections to core network: one to package conversion field and another is to the circuit conversion field.Other critical function system of radio network controller comprises secret and honest protection.The background note data system of this system openly can get and continue to be developed.
Usually, system of commercial wireless system uses the system time frame grid type of good definition to come the transmit wireless communication signal.In the communication system as third generation partner plan (3GPP) time division duplex (TDD) and frequency division duplexing (FDD) system, the multiple shared and dedicated channel system of variable-speed data is combined and transmits.Yet no matter system is based on time division duplex or frequency division duplexing, and received wireless signal must be according to its time frame structure Lai Xie Code that is transmitted.
One of first task that is performed when radio communication begins is to determine the relative time point of received signals so that synchronously.In the modern system, have various synchronizations position standard, as carrier, frequency, coding, symbol, frame and Network Synchronizationization.Everybody is accurate to locate, and synchronization can be divided into for two stages: incorporate (opening the beginning synchronization) into and follow the trail of (fine synchronizationization).
As the typical radio communication that illustrates among the 3GPP, be to transmit to connect down from base station to be communicated to one or a plurality of user's equipment and connect from the transmission of user's equipment and to be communicated to base station.Receiver system in each user's equipment is by interconnection, and convergence is received down and connects signal and the known coded sequence is operated.Coded sequence system by be received the sequence synchronization to obtain maximum output from correlator.
Receiver can receive the time migration duplicate that is transmitted signal of communication that is known as multipath.In the multipath decline channel, signal energy is that the system of Himdu logic shows echo path and distribution and is distributed on the special time amount.In order to improve usefulness, receiver can come estimated channel by the multipath duplicate of composite signal.If receiver has the information of channel profile, collecting one of the signal energy mode is then to assign some correlator branches to different echo path and construction that its output is made up.Traditionally, this is to use the structure that is known as the RAKE receiver to reach.
Traditionally, the RAKE receiver has some " fingers ", and one is used for each echo path.In each finger, relevant to directly or the earliest being received some path delay in path with reference to delay, must between transmission period, be estimated and be followed the trail of.The estimation of path original position can use the multipath search algorithm in time to obtain.Multipath search algorithm system does extensive search via correlator and comes location path with expection chip precision.The RAKE receiver can use multipath propagation to benefit from the multipath that is transmitted signal.Use an available signal poker that increases receiver with upper pathway or ray system.In addition, because some paths can not be subjected to the deep fading simultaneously, so it can provide the protection to decline.Suitably combination has been arranged, and this can improve received signal noise ratio, reduces decline and alleviates power control problem.
Reception period can be divided into the composition that can contribute the separation multipath to form with being received energy never.For example, this can betide if various relative delay of arriving at the path and chip duration compare down very hour.This situation results from indoor and the countryside communication channel usually.This problem is commonly called " fat finger effect ".So, the RAKE receiver can be discerned fat finger by development, as be disclosed in number of patent application US-2003-0157892-A1 and all Application No. the 10/304th of assignee of the present invention on August 21st, 2003,894, be used for the receiver of aerogram platform and the RAKE receiver of method.Fig. 2 handles the explanation that is received radio communication with the preferable RAKE receiver that comprises fat finger configuration.
Describe as Fig. 2, be received wireless communication system and handle in advance in the initial cell search of preceding acceptance of RAKE finger configuration.But the targeting sequencing of initial prior processing identification such as random access channel (RACH) or the reception of signal specific sequence.The method system of various searches and identification known transmission burst is well known in the technical field.For example, this method and device system are disclosed in by the assignee of the present invention and are published in publication number US-2003-0161416 and the Application No. the 10/322nd, 184 that has on August 28th, 2003, the device and method of searching for known sequences.
Have some purposes that why the known symbol sebolic addressing of receiver are transmitted out transmitter, as relevant to postpone the channel estimation of amplitude and phase place as the time point in the path search: send the collision detection of (inputs) ALOHA multiple access and as have an access assurance signal that the random access channel targeting sequencing detects; And send as relation of the time point in the cell search and even coding group configuration signal.
The low level signal sends in the example, has the some different known arrays that can be sent usually, and this signal transmission value system decides on what person is found.Therefore, this search must be performed in the possible or correlated series of institute.The accurate reception time point of known array is the unknown usually.Unfortunately, the unknown if distance between transmitter and receiver and propagation are hidden, then this is as being used for the accurate favourable parameter of random access channel targeting sequencing.In addition, can be unknown fully as the transmission time point in the cell search; Or the reception of known array can be different time points, the duplicate of amplitude and phase place, but these parameters advantageous particularly in as cell search.
Usually, when sequence is expected that when receiving, cording has the special time window that constitutes by some transmission time point relation, or, sequence only has repetition rate when spreading out of if being repeated rule.Therefore, on the receiver side, sequence search system is positioned at time window, and it is to repeat to be correlated with by sequence usually just entering the reception signal, and maximum or the door of then searching the correlator output signal compare.The associative operation of this sequence time can be regarded as using expected sequence to regard the finite impulse response filter of the positive entering signal of finite impulse response (FIR) (FIR) filter coefficient.This meets the notion of using matched filter to detect.
In the 3GPP system, known symbol sequence system uses the pulse-shaping filter of RRC (root-raised-cosine) type to transmit.On the receiver-side, the RRC type filter system that is matched to this transmission pulse is used.In the time domain convolution, the two filter combination is RC (raised-cosine) type.Fig. 3 shows to have 0.22 filter roll-off (roll-off) factor that is used among the 3GPP in the time domain, and by the RC filter of normalization 1.0 peak swings.The amplitude size system that is used for the decibel expression of Fig. 3 filter impulse response is shown in Fig. 4.If the transmission of symbol and receive time point by absolute calibration, then received signals amplitude system is maximum, and at the adjacent symbols of the symbol duration Tc integral multiple of being separated by, this received signals is zero.This is the key property of these type filter, and for why this mode filter is used to the reason of the application's case.
If the unknown of closely coincide time point, and receive by some time point skew and close, then received signals amplitude system is no longer maximum.Because unknown time point searching for known sequences, the closely coincide time point is not satisfied usually.So this type of mistake almost takes place always.
If searching for known sequences system carries out with interval time Tc, then maximum possible time point mistake is Tc/2, and the amplitude degradation that results from this as shown in Figure 4 is about 4 decibels, and it is because of carrying out former thereby being under an embargo.At the sequence search that interval time Tc/2 is performed, maximum time point mistake is Tc/4, and the amplitude degradation is 0.94 decibel.
Because above-mentioned, carrying out total correlation with Tc/2 speed is with the most extensive being seen method in the current methods of unknown time point searching for known sequences challenge.For example, Fig. 5 shows a system model 10, and wherein dirac pulse 12 is applied to sequence finite impulse response filter 14, and it is to be applied to form the partly RRC finite impulse response filter 18 of channel 16.The receiver end place, RRC finite impulse response filter 20 can receive and be transmitted signal, and filter 20 is matched to and is transmitted pulse.Filter 18 and 20 combination can be used as the RC mode filter.Known sequence detector 22 is to be used to signal processing chain.After the interpolation, handle afterwards, be performed in the stage 22 as maximum search or door detection system.
From signal processing chain deletion finite impulse response filter structure, be doubled searching for known sequences by relevant rapid performance degradation or need master chip rate processing complexity.For example, Fig. 6 shows " violence (bruteforce) " method, wherein known sequence detector 22 is to comprise correlator finite impulse response filter 24, it can every chip two sample speed receive positive entering signal, and provides it to export peak value search detector 25 to every chip two sample speed equally.
By by with reference to above and be shown in the comparison of Fig. 7, the enforcement system that is disclosed in publication number US-2003-0161416 provides positive entering signal to sequence correlator finite impulse response filter 24 with every chip one sample speed.Its output also with every chip one sample speed by the estimation filter 26 that directly is applied to multiplexer 28 and is preferably four (4) tap finite impulse response filters.Signal system is applied to finite impulse response filter 24 with every chip one sample speed, and its output is also estimated finite impulse response filter 26 processing with every chip one sample speed equally.Multiplexer 28 can receive two signal flows and alternately the channel of these signal flows to peak value search/detector 25 of can every chip two sample speed carrying out peak value search/detecting operation.Yet, even this modified method is to the also non-the best of processing effect.
Summary of the invention
Wireless transmission receiving element (WTRU) and method system is used to wireless communication system and handles and be sampled received signal to set up and/or to keep radio communication.The power-delay profile can be made in the coherent accumulation of selectivity may command unit.Selectivity may command processing unit afterwards can be approved door that the device that big or small approximation and PDP position are sent to thunderous gram (rake) receiver decides the received signal path.
In the present invention's one viewpoint of the relevant accumulation that links up, antenna system system can select speed to receive wireless signal and make at least one sequence flows of received signals sample.N vector correlation device sequence array VC[1] to VC[N] be to be provided, respectively be arranged to by the coherent accumulation L set of dimensions of sequential reception sample of signal.The vector correlation device is that preferable quilt is used for any given N+L-1 sample sequence with the antenna system coupling, S1 to SN+L-1, wherein sample S1 is by primary vector correlator VC[1] first component groups handled, each vector correlation device VC[i], wherein i=1 to N is to handle each sample Si to Si+L-1.Sequence generator system is configured to the selectivity generation will be detected on the known array that is received wireless signal.Sequence generator is that preferable quilt makes each vector correlation device VC[i with the coupling of vector correlation device], i=1 to N wherein, system handles the L sequence samples group in the sample sequence S1 to SN+L-1, L by the given known array of generation component by generation component Gj, G0 to GL-1, be by with sample VC[i] in Si+j mix to make accumulated on VC[i by linking up] mixed number.Vector correlation device control circuit is the preferable accumulation mixed number output that is configured to each vector correlation device of Selective Control, makes each vector correlation device export accumulated value after multiple group of M of selection of accumulation L accumulation mixed number.This produces the power-delay profile (PDPs) of the manufactured component sequence of N at least E1 to EN, and wherein each power-delay profile assembly Ei is representation vector correlator VC[i], i=1 to N wherein, the accumulation that links up of the M*L mixed number of manufacturing.
Vector correlation device control circuit is the preferable accumulation mixed number output that is configured to each vector correlation device of Selective Control, makes the accumulated value of the exportable selected several P of each vector correlation device.In this example, the power-delay profile of N*P component sequence E1 to EN*P is manufactured, and wherein each power-delay profile assembly Ei+ (j*N) is representation vector correlator VC[i], wherein i=1 to N and j=0 to P-1, the accumulation that links up of the M*L mixed number of manufacturing.Antenna system is preferable multiple antenna is made the received signals sample with selected speed the multiple sequence stream that is configured.The preferable may command antenna switch that comprises of each vector correlation device, it is configured to select sample flow to receive the sample of handling for each vector correlation device from multiple sample flow.Be preferably, antenna switching circuit may command antenna switch makes any given N+L-1 sample sequence, S1 to SN+L-1, wherein sample S1 is the primary vector correlator VC[1 that is received from specific sample stream] handled first component groups, each vector correlation device VC[i] each antenna switch, i=1 to N wherein is that Be Controlled is selected specific sample to flow to give each vector correlation device VC[i] handle from its received each sample Si to Si+L-1.
Each can be configured a plurality of accumulator device AD1 to ADn the vector correlation device.In this example, each accumulator device ADj, j=1 to n is preferablely to be coupled to sequence generator to receive common generation module and to be made each sample can be by the different series processing of n to make the n accumulation of mixed number by the sample of signal coupling that each vector correlation device is handled by selectivity.This generation can be made n power-delay profile simultaneously, one of different sequences of its each corresponding n.Sequence generator can comprise mess code generator and n signature codes generator.。Sequence generator is followed the preferable n of being configured output SGO1 to SGON, makes each sequence generator SGOj exportable by the different stamped signatures/mess code composite sequence of generation component.Vector correlation device system respectively is configured a plurality of accumulator device AD1 to ADn, each accumulator device ADj, j=1 to n is to be coupled to sequence generator by selectivity with the sample of signal mixing of being handled by each vector correlation device each sample can be accumulated to receive common generation module by the different series processing of n with the n that makes mixed number.This makes vector correlation device array be made n power-delay profile simultaneously, one of different sequences of its each corresponding n.
Be preferably, vector correlation device array is to select the fast 48 times speed operation of sample rate.Interpolater can by with vector correlation device coupling, and be configured by interpolation method increase component count from P to expecting that plural P makes the extended power delayed profile.Processing unit preferably can transmit big or small approximation and be handled the extended power delayed profile by related power delayed profile positional value to the RAKE acceptor device type that the door device is approved by calculating the big or small approximation of extended power delayed profile value, reaching afterwards.The wireless transmission receiving element can be configured to be used as Node B or user's equipment is used for whole world action telecommunication system (UMTS).
The method system that processing is received wireless signal is provided, and the sequence flows of at least one received signals sample of selected speed is manufactured.The L of sequential reception sample of signal is tailored group system and is used N vector correlation device VC[1] to VC[N] the accumulation that links up of sequence array, make any given N+L-1 sample sequence, S1 to SN+L-1, wherein sample S1 is by primary vector correlator VC[1] first component groups handled, each vector correlation device VC[i], wherein i=1 to N is to handle each sample Si to Si+L-1.Being detected on the known array that is received wireless signal lies in the accumulation period that links up and is produced by selectivity and mix, make each vector correlation device VC[i], i=1 to N wherein, system handles the L sequence samples group in each sample sequence S1 to SN+L-1, the generation component Gj of given L generation component known array, G0 to GL-1, be by with VC[i] in sample Si+j mix to make accumulated on VC[i by linking up] in mixed number.The accumulation mixed number output system of each vector correlation device is made each vector correlation device export accumulated value after the selected multiple M group of accumulation L accumulation mixed number by selectivity control, at least the power-delay profile of N assembly E1 to EN sequence is manufactured by this, wherein each power-delay profile assembly Ei system representative is by vector correlation device VC[i], i=1 to N wherein, the coherent accumulation of the M*L mixed number of manufacturing.Method variation system reaches according to expection configuration and parameter.
In another viewpoint of the present invention, the various configurations of afterwards handling manufactured power-delay profile are to be provided.Power-delay profile manufacturing cell can make the corresponding power-delay profile G1-GN of group, it respectively has selected several L of module, its have by with known array be received the link up value of accumulation of sample sequence group, system of wherein corresponding power-delay profile group is by the power-delay outline definition from each group, make all power-delay profiles of corresponding power-delay profile group, each power-delay profile assembly can use identical known array to make based on coherent accumulated process.Processing unit system is configured to select the L/2 power-delay profile assembly less than each power-delay profile afterwards, and stores this selected power-delay profile assembly value and each power-delay outline position value.The alternative combination of processing unit is stored power-delay profile value afterwards, and each the power-delay profile assembly value that is stored the corresponding power-delay set of contours that is used for identical each power-delay outline position can be combined.Processing unit can be assessed each power-delay outline position the combined value of selected door is come by door approval combined value and each positional value with further signal processing afterwards, be used to determine the received signals path by to make the known array institute transmission signals of each power-delay profile assembly.
Processing unit can be configured to select the N peak of each power-delay profile afterwards, wherein N＞2 and＜L/2.Power-delay profile assembly value comprises homophase and quadrature composition place, and processing unit can be configured to come the selectivity combination to be stored power-delay profile assembly value by the combination that links up and do the door assessment afterwards.In this example, the big or small approximation of each combined value of being approved by door is calculated by processing unit system afterwards, makes door approve that big or small approximation and each positional value system are used to determine the received signals path.Alternatively be, processing unit can be further configured and calculate the big or small approximation that respectively is stored power-delay profile assembly value afterwards, the big or small approximation of the power-delay profile assembly value of the corresponding combination that linked up of non-coherent combination, and to door separately assessment link up and non-coherent combined value approves that each power-delay outline position value decides the received signals path with further signal processing.
By the power-delay profile assembly value of processing unit processes afterwards is that the coherent cumulative size of sequence of signal samples group is approximate, and processing unit is preferablely to be configured to come the selectivity combination to be stored power-delay profile assembly value by non-coherent combination and to do the door assessment afterwards.
Processing unit can be configured to select from first G1 of the group power-delay profile limit number of power-delay profile assembly afterwards, and store these components values and each positional value, and the corresponding power-delay set of contours storage assembly value of following when each other power-delay profile group is processed from each power-delay profile reaches each positional value that respectively is placed assembly.In this example, it is also selected and store and be used for the door approval from other component limitations number from the power-delay profile of any position of selected assembly of first G1 of the group power-delay profile not match.Processing unit can be selected the highest N value of power-delay profile assembly afterwards, and wherein N is that the basis is configured to select assembly from first G1 of the group power-delay profile less than L/4.Alternatively be that processing unit can be set that to make less than the L/4 assembly be that selected door approval from each first G1 of group power-delay profile is selected assembly from first G1 of the group power-delay profile by door afterwards.
The method system of processing power delayed profile is provided, the G1-GN of group that wherein respectively has the corresponding power-delay profile of the selected several L of module, cording has the value of the coherent accumulation that is received the sample sequence group of representing that quilt is mixed with known array, wherein corresponding power-delay set of contours is to define by the power-delay profile from each group, for all power-delay profiles of corresponding power-delay set of contours, each power-delay profile assembly system can use the coherent accumulated process of identical known array to make as the basis.This method comprises selection less than the L/2 power-delay profile assembly of each power-delay profile and store selected power-delay profile assembly value and each power-delay outline position value.The power-delay profile value that is stored system is made up by selectivity, makes each power-delay profile assembly value system of the corresponding power-delay set of contours that is stored at identical each power-delay outline position be combined.The combined value system of each power-delay outline position assesses at selected door.Door approval combined value and each positional value system are transmitted so that do further signal processing, the received signals path of the known array institute transmission signals that is used to determine each power-delay profile assembly to be rely and makes.The whole bag of tricks system reaches according to expection configuration and parameter.
In another viewpoint of the present invention, the manufacturing of power-delay profile value system is controlled by selectivity.This is particularly useful when path search.The wireless transmission receiving element can receive the wireless signal from other wireless transmission receiving element, it is known making the relative time point of each wireless signal that is received by the wireless transmission receiving element, and this wireless signal can be by the symbol predetermined number J sequence of being transmitted by the time slot with the system time frame, SYM (0) defines to SYM (J-1), and wherein each symbol cording has pre-determined bit length B.System of power-delay profile manufacturing cell is configured to make the power-delay profile of the selected several L that respectively have module, its selected several p with the mixed known array of representative are received the coherent accumulation of sample sequence group, wherein p equals B and is multiplied by selected positive integer I, p=B*I.Power-delay profile manufacturing cell is the preferable relevant continuous power delayed profile that is received wireless transmission receiving element wireless signal that is configured to make, make when the N wireless signal is received simultaneously, the power-delay profile can be at producing making to each wireless signal WS (0) of received signals the latest to WS (N-1) the earliest from known time point, start from the first received the earliest wireless signal WS (0), start from symbol SYM (j) simultaneously to time slot with the first wireless signal WS (0) reception time point, and the continuous continuation received wireless signal WS (n) that respectively continues, n=1 to N-1 begins, after accurate delay of the time of the known time point of wireless signal WS (n), appearance receives the symbol SYM ((j+ (I* (N-1))) modJ) of the time slot of time point to having wireless signal WS (n)), the power-delay profile processing system that is received wireless signal WS (N-1) by this latest starts from D chip accumulated delay and has the symbol SYM ((j+ (I*n)) modJ) that first wireless signal receives the time slot of time point relatively) beginning, make the next power-delay profile manufacturing that is received wireless signal the earliest start from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, wherein K is less than (the maximum integer of (j+ (I* (N-1))+(D/B)) modJ.
Expection manufacturing has the power-delay profile that the value that is received the coherent accumulation of sample sequence group of representing the J symbol makes p=J*B, this power-delay profile manufacturing cell can make the continuous power delayed profile at being received wireless transmission receiving element wireless signal selectivity, make when the N wireless signal is received simultaneously, the power-delay profile can be at producing making to each wireless signal WS (0) of received signals the latest to WS (N-1) the earliest from known time point, start from the first received the earliest wireless signal WS (0), start from symbol SYM (J) simultaneously to time slot with the first wireless signal WS (0) reception time point, and the continuous continuation received wireless signal WS (n) that respectively continues, n=1 to N-1 begins, after accurate delay of the time of the known time point of wireless signal WS (n), appearance receives the symbol SYM (j) of the time slot of time point to having wireless signal WS (n), the power-delay profile processing system that is received wireless signal WS (N-1) by this latest starts from D chip accumulated delay and has symbol SYM (j) beginning that first wireless signal receives the time slot of time point relatively, make the next power-delay profile manufacturing that is received wireless signal the earliest start from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, wherein K is the maximum integer less than (j+ (D/B)) modJ.In one example, wireless transmission receiving element system is arranged to the UMTS of the system time groove with 2560 chips, and wherein system of power-delay profile manufacturing cell is configured to make the power-delay profile that the pilot channel that is used to be received in 256 of every channel time slots formats the wireless signal on 10 symbols.
The method system of power-delay profile manufacturing is provided in the control wireless transmission receiving element, it can receive the wireless signal from other wireless transmission receiving element, it is known making the relative time point of each wireless signal that is received by the wireless transmission receiving element, and this wireless signal can be by the symbol predetermined number J sequence of being transmitted by the time slot with the system time frame, SYM (0) defines to SYM (J-1), wherein each symbol cording has pre-determined bit length B, the power-delay profile respectively has the power-delay profile of selected several L of module, its selected several p with the mixed known array of representative are received the coherent accumulation of sample sequence group, wherein p equals B and is multiplied by selected positive integer I, p=B*I.The relevant continuous power delayed profile that is received wireless transmission receiving element wireless signal is selected manufacturing, make when the N wireless signal is received simultaneously, the power-delay profile can be at producing making to each wireless signal WS (0) of received signals the latest to WS (N-1) the earliest from known time point, start from the first received the earliest wireless signal WS (0), start from symbol SYM (j) simultaneously to time slot with the first wireless signal WS (0) reception time point, and the continuous continuation received wireless signal WS (n) that respectively continues, n=1 to N-1 begins, after accurate delay of the time of the known time point of wireless signal WS (n), appearance receives the symbol SYM ((j+ (I* (N-1))) modJ) of the time slot of time point to having wireless signal WS (n)), the power-delay profile processing system that is received wireless signal WS (N-1) by this latest starts from D chip accumulated delay and has the symbol SYM ((j+ (I*n)) modJ) that first wireless signal receives the time slot of time point relatively) beginning, make the next power-delay profile manufacturing that is received wireless signal the earliest start from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, wherein K is less than (the maximum integer of (j+ (I* (N-1))+(D/B)) modJ.
Skilled general technology personage will understand other purpose and the advantage that is illustrated as the basis below the preferred embodiment of the present invention.
Description of drawings
Fig. 1 shows the general survey of traditional UMTS network system architecture.
Fig. 2 is the begin fat finger and the RAKE finger configuration processor block diagram of opening of RAKE receiver.
Fig. 3 is the impulse response figure that has in the time field of RC filter of 0.22 roll-off factor.
Fig. 4 is expressed the amplitude size for Fig. 3 filter with branch.
Fig. 5 is for reaching the synchronized system of time point block diagram.
Fig. 6 is for using " violence " technology detects the sequential detector block diagram of Fig. 5 system in regular turn.
Fig. 7 is not for using " violence " technology detects the block figure of alternative sequence detector of Fig. 5 system in regular turn.
Fig. 8 is for to reach the sequence detection system block diagram that is used for wireless receiver according to the present invention.
Fig. 9 is that the Sequence Detection that is depicted in Fig. 8 of the coherent accumulation of explanation vector correlation device enforcement is partly launched block diagram.
Figure 10 is that the Sequence Detection that is depicted in Fig. 8 that coherent accumulation vector correlation device that explanation is used to detect the RACH targeting sequencing of 3GPP wireless communication system base station implements is partly further launched block diagram.
Figure 11 is that the Sequence Detection that is depicted in Fig. 8 of the non-coherent accumulation vector correlation device enforcement of explanation is partly launched block diagram.
Figure 12 wherein is repeatability and the fragment that is divided into check and analysis with detected sequence for being selected to sequence detection system processing figure in advance by every section maximum ordering.
Figure 13 is used to implement the sort time point scheduling processing figure of the sequence detection system handled of Figure 12.
Figure 14 wherein is repeatability and the fragment that is divided into check and analysis with detected sequence for to be selected to sequence detection system processing figure in advance by using known maximum position to sort.
Figure 15 is used to implement the sort time point scheduling processing figure of the sequence detection system handled of Figure 14.
Figure 16 wherein is repeatability and the fragment that is divided into check and analysis with detected sequence for relatively coming to be selected in advance sequence detection system processing figure by using known location to do door.
Figure 17 is at being handled figure by four Sequence Detection time point schedulings of the continuous path search of received signals fully synchronously of four different radio transmission receiving elements transmission.
Figure 18 is by the time point skew comparison diagram of the received signals of four different radio transmission receiving elements transmission.
Figure 19 is for time slot disposal ability shape serving as the Sequence Detection time point scheduling processing figure that search at the continuous path of four complete received signals synchronously that transmitted by four different radio transmission receiving elements of Figure 18 on the basis.
Figure 20 is for symbol disposal ability shape serving as the Sequence Detection time point scheduling processing figure that search at the continuous path of four complete received signals synchronously that transmitted by four different radio transmission receiving elements of Figure 18 on the basis.
The first combination of letter word table
| 2G | Second generation mobile radio system standard |
| 3GPP | Third generation partner plan |
| ARIB | Wireless industry commercial guild |
| ASIC | ASIC(Application Specific Integrated Circuit) |
| BLER | Block error rate |
| CN | Core network |
| CPCH | Share the package channel |
| DCH | Dedicated channel |
| DL | Under connect |
| ETSI SMG | ETSI-special operation group |
| FDD | Frequency division duplexing |
| GPRS | General General Packet Radio Service (GPRS) |
| GSM | Whole world action telecommunication system |
| HS | At a high speed |
| HW | Hardware |
| MAG | The size approximation apparatus |
| MUX | Multiplexer |
| PDP | The power-delay profile |
| PSTN | PSTN |
| RACH | Random access channel |
| RNC | Radio network controller |
| RRC | Radio Resource control |
| SIR | The signal-to-interference ratio rate |
| SW | Software |
| TDD | Time division duplex |
| TS | Time slot |
| TTI | Transmission Time Interval |
| Tx | Transmission |
| UE | User's equipment |
| UL | On connect |
| UMTS | Umts |
| UTRA TDD | Umts land radio access time division duplex |
| UTRAN | Umts land radio access network |
| VC | The vector correlation device |
| WTRUs | The wireless transmission receiving element |
Embodiment
The explanation with reference to the accompanying drawings of the present invention system wherein spreads all over similarity number type families in full and represents similar assembly.Base station, wireless transmission receiving element and mobile unit system use with its general connotation.Comprise in this base station that is used one speech system but be not subject to Node B, address control unit, access point or provide base station to produce related network wireless access to connect Jie's device in the wireless environment of wireless transmission receiving element other.
Comprise in this wireless transmission receiving element one speech that is used system but be not subject to user's equipment, mobile station, fixing or mobile subscriber unit, calling set maybe can operate on any kind device in the wireless environment.The wireless transmission receiving element comprises the personal communicator as mobile phone or video signal mobile phone, and has the convenient mobile phone of network that network connects.In addition, the wireless transmission receiving element comprises the Portable personal computing device, as personal digital assistant (PDAs) and have the mobile computer of the radio modem of similar network function.The wireless transmission receiving element system that Portable maybe can change the position is called as mobile unit.When the present invention is particularly useful in reception from the base station of the radio communication of multiple wireless transmission receiving element, but also has the wireless transmission receiving element extensive use that can detect known array usually.For example, the present invention may be implemented on the user's equipment or the Node B of the traditional common action telecommunication system that is illustrated in Fig. 1, and to the Node B base station instruct path search or share connect down actual channel detect particularly useful, for example by the frequency division duplexing random access channel or the shared package channel targeting sequencing that transmit with 25.211 sections 5.2.2. specializations of 3GPP TS form.
With reference to figure 8, show according to the present invention to be used for the framework of the vector correlation device (VC) of Sequence Detection for the basis.When communication was activated, being transmitted burst, to arrive at the precise time system of receiver unknown, and because of the speed of mobile wireless transmission receiving element, the position in oscillator the unknown and the cell element service area and changing.Adopt different paths because arrive at the wireless wave of receiver antenna, so received signals comprises one of an a little different time received signals transmission above duplicate usually.The RAKE receiver is used to make up these received signals duplicates traditionally to strengthen receptivity.Therefore, base station is searched arriving at of expected sequence in the special time window.
Usually, searching window is selected desired size, and as the L chip length, wherein L is that the selected length that is enough to is to catching initially signal duplicate and multichannel duplicate.
Traditionally, the front-end processing of received signals system is by radio frequency (RF), and the baseband filtering of mixed signal and sample of signal is carried out.Among the present invention, wireless communication signals system receives via one or more ant1...antM.Received signals system handles in advance by selected speed sampling.As the preferred embodiment that publication number US-US-2003-0161416 is disclosed, relatively costly during for fear of sampling, sampling is that preferable 1/Tc chip rate with the system transmissions specialization carries out.
After handling in advance, sample then can be correlated to the known array sign indicating number, and accumulation just links up.For example at some 3GPP system transmissions, relevant is the sequence/signature codes function of known length and mess code.The known sequence that is transmitted is to repeat institute by shorter sequence or stamped signature to form usually.For example, 3GPP frequency division duplexing random access channel targeting sequencing system specifically is set fourth as 4096 chip length that comprise 256 repetitions of 16 signature codes at present.Have 16 different signature codes that are used for the transmission of random access channel targeting sequencing by concrete statement at present, so one of these 16 stamped signatures are to be selected to create whole random access channel targeting sequencings encode with spreading codes and do specific transmission.16 spreading codes are included at each cell element of 3GPP system usually, but different cell element can use not spreading codes on the same group.
In the static example, sample is estimated to be integrated on the complete sequence with maximum increment signal noise ratio (SNR).Yet this is usually only if transmission and reception wireless transmission receiving element only relatively move just feasible each other with low speed.If consider to be reached the frequency shift (FS) that 250 kilometers/hour mobile Doppler effects are produced, then the coherent combination of full sequence usually can incorrect running.Full sequence is divided into can be by the less equal package of non-coherent combination for expection for this, one of non-coherent accumulation example.Detect at the random access channel targeting sequencing, 1024 chip slapper segment length are preferable selected, and its each fragment representative is transmitted 64 of 16 signature codes and repeats.
According to the present invention, the accumulation unit 31 that links up is to be provided, its comprise from by and the sequence generator manufacturing know the sample flow selection of the received signals of the selected antenna source that known array is relevant.Sample flow and known array system are relevant to phasor correlator array and make the power-delay profile.As following detailed explanation, the phasor correlator array hardware system of the accumulation unit 31 that links up is highly suitable for various parameter group and gets off to make the power-delay profile.Be preferably, antenna selected cell system is comprised separately to each vector correlation device to use the RX diversity of multiple antenna.Usually can be kept though be received in the chip calibration of the identical traffic sample of signal of different antennae, but still may be had enhancing that is used for the RX processing or the obvious phase difference that weakens received signals sample quality.
The power-delay profile system that the coherent accumulation of quilt unit 31 is made is transferred into interpolater 32 increases the chip rate processing by interpolation.Be preferably, this is to double chip length as explanation among the publication number US-2003-0161416 by using the estimation filter as Fig. 7 explanation, and it doubles the power-delay profile length in regular turn.
Being expanded the power-delay profile is the preferable accumulation sample size that big or small approximation apparatus 33 (MAG) is similar to each power-delay profile assembly that then is transferred into.Usually because as the specifically sampling in the statement system of 3GPP institute, each sample will have homophase (I) and quadrature (Q) composition.The final power-delay profile assembly that links up after accumulating is to keep homophase and quadrature composition.The size of being carried out by big or small approximation apparatus 33 is approximate be mat add use traditional max (I, Q)+0.5min (I, Q) carry out by formula.
But the big or small approximation of non-coherent accumulation unit 34 received power delayed profile assemblies also stores them with its original order or positional information.When obtaining the big or small approximation close set of power-delay profile, it can transmit by door comparing unit 35, and it is preferable to transmit approximate and positional value to the finger decision of RAKE receiver of door approval size in regular turn and form.Power-delay profile assembly system representative with enough sizes is received the known starting position that is transmitted at least one duplicate of sequence in the wireless signal.
The RAKE receiver software of beginning that detected peak value and position thereof system is passed to preferable with what is called in the profile ' fat finger detect '.This mean by very near the peak value of placing be not taken as two separate peak values and unique peak value that is combined with than exempting to produce as assign RAKE finger problem.It is preferable random access channel targeting sequencing and the path search Sequence Detection of being used for that fat finger detects software.
Fig. 9 illustrates advantageous configurations as one of the accumulation unit 40 that links up.Coherent accumulation unit 40 is to comprise associated vector correlator VC[1] ... VC[N] array.In the simple example, each vector correlation device unit can transmit receiving element at specific wireless makes one of power-delay profile value.Can be by the wireless transmission receiving element maximum quantity of parallel processing and power-delay profile length system decision hardware complexity.As explained below, hardware process speed can advantageously be used for making the multiple value with each vector correlation device unit and make the power-delay profile length greater than vector correlation device element number.
Though single antenna can be used, multiple antenna Ant1...AntM system is provided each associated vector correlator VC[1] ... VC[N] preferable each antenna conversion AS[1 that comprises] ... AS[N], it can be handled from selecting sample flow between antenna.Coherent accumulation unit 40 is to comprise the input 41 that is used for the antenna conversion and control, and control signal can be transferred into antenna conversion AS[1 via it] ... AS[N] input to selected antenna sample with conversion process.When control signal is transmitted in the accumulation beginning usually.Preferable being configured in unit 40 make the control signal 1 from input 41 be directed to primary vector correlator VC[1] antenna conversion AS[1], it then is connected in series in regular turn to each the vector correlation device VC[i that is preferably a chip length with specific delays] the antenna conversion AS[i that respectively continues], i=2 to N.So, each vector correlation device VC[i] and to do sequence relevant for preferable relative first sample with the i sample, and its primary vector correlator VC[1 has been arranged] can to carry out sequence relevant.As primary vector correlator VC[1] antenna conversion AS[1] illustrated person, to postpone serial connection and control signal to the antenna conversion AS[i that respectively continues in order to carry out], deferred mount z system changes AS[i-1 with each previous antenna] relevant.
Control input 45 be by with each vector correlation device VC[1] ... VC[N] collecting apparatus 44[1] ... 44[N] relevantly sent the output that signal that the selected sample number p of accumulation finishes touches each power-delay profile assembly by each vector correlation device.A corresponding chip delays device is that serial connection controls signal to the VC[i that respectively continues].
By using in the accumulation unit 40 that links up with the hardware unit greater than the clock pulse speed operation of sampling rate, the vector correlation device can be made to be used for making the power-delay profile that has greater than the N assembly for a long time.For example, hardware unit if link up in the accumulation unit 40 is to double the speed 2/Tc operation of sampling rate 1/Tc, then sequence generator 42 can be configured first duplicate at manufactured every odd number module output known array, then exports second duplicate of known array at every even number module manufactured after the N even number component delays.Therefore, the the 3rd and the 5th assembly that is output from sequence generator then is the first of corresponding known array first duplicate, second and third assembly, and the 2N+2 that is output from sequence generator then, 2N+4 and 2N+6 assembly be the first of corresponding known array second duplicate, second and third assembly.
In this example; because being installed on the 2N generation component, accumulator postpones the mixing of back tracking even number; so 1/Tc speed is received each sample from each selected antenna, be to be fed to each blender 43[1 with 2/Tc operation by twice] ... 43[N] and with the accumulator device 44[1 that is mixed by the assembly track of even number and odd number generation] ... 44[N].The p sample is used for each power-delay profile assembly by accumulation, primary vector correlator VC[1] then can make first and N+1 assembly of power-delay profile from first antenna processing the one p+N sample.The first power-delay profile assembly is a p odd number accumulation mixing sample, that is odd number mixing sample 1,3,5.. to 2p+1, and N+1 power-delay profile assembly is the even number accumulation sample from 2N+2 to 2N+p.
Alternatively be, operate with 2/Tc for hardware and to handle 1/Tc and be received the sample example, sequence generator can produce two identical sequences or two different sequence duplicates, and one duplicate or sequence system produce at the odd number generation component, and other duplicate or different sequence system produce at the even number generation component.
In first example that two duplicates of identical sequence are produced, antenna selector AS[1] ... AS[N] can provide from neither substituting duplicate with each sample of antenna, make the vector correlation device be able to odd number and produce module and handle from the sample of an antenna making the power-delay profile that this antenna is sampled signal, and the vector correlation device is able to even number and produces module and handle sample from other antenna to make the power-delay profile that is sampled signal of another antenna.
In second example that two different sequences are produced, the odd number that definition first known array can sample mixes in two duplicates of each sample system produces module and handles by the vector correlation device for the basis and make the first power-delay profile, and to produce module be that the second power-delay profile is made on the basis to the even number that mixes the definition second different known arrays with sample simultaneously.In the method, can be produced simultaneously from the power-delay profile that is transmitted from the signal of two different wireless transmission receiving elements; One wireless transmission receiving element transmits it by with the first known array encoded signals, and another wireless transmission receiving element transmits it by with the second known array encoded signals.
How complete example can be considered with coherent the functional of unit 40 of accumulating of better understanding.Table 1 identification is used to the parameter of the functional and size in the coherent accumulation unit construction.
| Search window length |
| Processed delayed profile quantity | |
| Vector correlation device element number | |
| Antenna amount | |
| Hardware clock pulse=c* system frequency=c* (representative value=3.84MHz) | |
| Cumulative length links up | |
| Searched different sequence quantity (FDD RACH: mess code quantity; Path search: wireless transmission receiving element quantity |
Table 1: the accumulation parameter links up
For simplicity, two example systems are based on the just for one day line below.In this example, the antenna conversion is selected same antenna forever or can be deleted together.At first example, hardware system is configured N=10, L=10, M=1, c=1, u=1, p=1024.Coherent accumulation unit 40 then can comprise ten vector correlation device unit VC[1 that operate on 1x]-VC[10] come one of factory length 10 delayed profile to give active wireless transmission receiving element.After 1024 chips are processed, primary vector correlator unit VC[1] be to make the first delayed profile value, and after the 1024+9 chip is processed, last vector correlation device unit VC[10] be that last delayed profile value of manufacturing and power-delay profile are done.
In second example, hardware system is configured N=20, L=20, M=1, c=2, u=1, p=1024.Coherent accumulation unit 40 then also can comprise ten vector correlation device unit VC[1 that operate on 2x]-VC[10] come one of factory length 20 delayed profile to give active wireless transmission receiving element.In order to carry out this, the two duplicates system of sequence code is sorted the incoming vector correlator.For example, this can be done as above-mentioned, first duplicate system is with the odd number generation component, and just the first, the three, the 5th generation component such as grade is fed into primary vector correlator unit VC[1], second duplicate system is with the even number generation component, and just 22,24,26 generation components such as grade postpone with 20, and just (2*N) assembly is fed into primary vector correlator unit VC[1].Primary vector correlator unit VC[1] then after handling the 1024th sample, make the first power-delay profile value with the 2047th generation component, and after handling the 1034th sample, make the first power-delay profile value with the 2068th generation component.Similarly, last correlator unit VC[10] then after handling the 1033rd sample, make the tenth power-delay profile value with the 2047th generation component, and after handling the 1043rd sample with the 2068th generation component, make the 20 power-delay profile value and finish one of length 20 power-delay profile.Therefore, ten hardware vector correlation device unary systems with the 2x running are used to define 20 virtual vector correlation device unit that operate on 1x.
Virtual vector correlation device element number is the maximum length of decision possibility delayed profile.In the whole world action telecommunication system frequency division duplexing, this equals to be linked up and accumulates the maximum cell element radius that piece is handled.The virtual vector correlation device element number that hardware provided is the c*N product.The required system quantity in virtual vector correlation device unit is the L*u product.
Be preferably, at path search, the accumulation unit 40 that links up is to be configured 100 vector correlation device VC[1] ... VC[100], and operate the received signals of handling by with the 1/Tc sampling with 48/Tc.Be preferably, sequence generator then is configured to 48 different mess codes and produces sequence for the basis and reached the 48 different radios transmission sequence that receiving element transmitted of respectively using different mess codes so that search simultaneously.In order to finish this, next sequential element that sequence generator then can be configured to make first assembly of variant generation sequence to lie in any known array is produced is precedingly produced after each sequential element of all known arrays.For example, this makes primary vector correlator unit VC[1] the i sample of signal that can handle first sample of signal of first assembly with each 48 known array and handle the i assembly with each 48 known array is to make first value of 48 power-delay profiles, and its each correspondence has 48 mess code difference persons' received signals.In this example, each power-delay profile length is 100.
Same hardware profile system can be controlled to the power-delay profile of factory length 200, and its each vector correlation device system makes two values.This reduction can be by from 48 to 24 power-delay outlines of making simultaneously.
In another configuration example, the accumulation unit 40 that links up is to be configured 64VC[1] ... VC[64], and operate the received signals of handling by with the 1/Tc sampling with 48/Tc.In order to operate, the accumulation unit 40 that links up is to control with the cell element size, and is as follows:
The cell element radius that is used for the expection search window of 1024 chips is 40 kilometers persons, and vector correlation device unit then is configured
Produce based on the sequence of 3 mess codes power-delay profile with while factory length 1024;
The cell element radius that window is searched in the expection that is used for 512 chips is 20 kilometers persons, and vector correlation device unit then is configured to produce based on the sequence of the 6 mess codes power-delay profile with while factory length 512;
The cell element radius that is used for the expection search window of 256 chips is 10 kilometers persons, and vector correlation device unit then is configured
Produce based on the sequence of 12 mess codes power-delay profile with while factory length 256;
The cell element radius that is used for the expection search window of 128 chips is 5 kilometers persons, and vector correlation device unit then is configured
Produce based on the sequence of 24 mess codes power-delay profile with while factory length 128;
The cell element radius that is used for the expection search window of 64 chips is 2.5 kilometers persons, and vector correlation device unit then is configured
Produce based on the sequence of 48 mess codes power-delay profile with while factory length 64.
Figure 10 illustrates accumulation unit 50 preferred embodiments that link up, it is arranged to the 3GPP frequency division duplexing random access channel targeting sequencing that is detected by base station, has 22 vector correlation device VC[1 with the 48/Tc operation] ... VC[22] handle by received signals with the 1/Tc sampling.As above-mentioned, this facilitates the power-delay profile diversity with 22 plural length to be made immediately.The accumulation unit 50 that links up is the preferable power-delay profile with the cell element dimensions length that is provided by base station for the basis according to the parameter of explanation in the table 2 that is configured to make.So power-delay overall size system is chosen as 88, each vector correlation device is made four assemblies of each power-delay profile.
| Profile length | Distance (kilometer) | Anti/Code Comb. |
| 22 | .086 | 48 |
| 44 | 1.72 | 24 |
| 88 | 3.44 | 12 |
| 176 | 6.87 | 6 |
| 352 | 13.75 | 3 |
| 1056 | 41.25 | 1 |
Table 2: preferable 3GPP frequency division duplexing random access channel power-delay profile length
Embodiment as one of Fig. 9 explanation has been arranged, each vector correlation device VC[i] cording has associated antenna conversion AS[i], and except primary vector correlator unit VC[1], to each previous vector correlation device VC[i-1] operate with a chip delays.Coherent accumulation unit 50 similarly comprises the input 51 that is used for the antenna changeover control signal, and it is that each antenna conversion is operated with a chip delays.Link up in the accumulation unit 50, each vector correlation device system is modified and comprises the accumulator quantity that is equal to signature codes quantity.In the existing frequency division duplexing random access channel specification example, 16 signature codes are available, so each vector correlation device VC[i] preferable 16 accumulator device 54[i, 1 of comprising respectively]-54[i, 16].
The sequence generator 52 that is used to produce the random access channel mess code is to be provided.Sequence generator 52 be by with each 16 signature codes generator 52[s1]-52[s16] produce related.Be preferably each signature codes generator 52[sj] can repeat to produce one of 16 specific 16 signature codes that are used to form 16 different random access channel targeting sequencings that are allowed to.Each signature codes generator 52[sj] mixed to provide the known array assembly with the one or more mess code sequences that sequence generator 52 is produced to primary vector correlator VC[1] each accumulator device 54[1, j], and then by with the chip delays serial connection to the vector correlation device VC[i that respectively continues] corresponding accumulator device 54[i, j].
The power-delay profile length is set to 22, and sequence generator 52 can advantageously be configured to produce 48 random access channel mess codes.Can be used to the transmission of frequency division duplexing random access channel targeting sequencing though existing 3GPP specification indicates 16 mess codes, the different mess code groups of different cell elements are to be provided.So the ability system that produces 48 different mess codes makes base station can be different mess code groups and is used in the 3GPP system in the variant cell element three different cell elements and detects all stamped signatures/mess code simultaneously at frequency division duplexing random access channel targeting sequencing and make up.In this example, with each signature codes generator 52[sj] produced " j " the stamped signature mixed stocker counts the primary vector correlator unit VC[1 that duplicate is sent to the first power-delay profile assembly that can produce 48 power-delay profiles with j stamped signature sequence 48 different random] each accumulator device 54[1, j], the different random of its each corresponding j stamped signature sequence is counted version.Each group system of 48 power-delay profiles produces at each 16 different random access channel signature codes targeting sequencing.So, in this configuration, the accumulation unit 50 that links up will be that the random access channel targeting sequencing that is transmitted in the observation window is detected on the basis to allow any 48 mess codes of stamped signature sequence in conjunction with any 16 at any wireless transmission receiving element random access channel targeting sequencing.
Use j and use i to indicate manufactured power-delay profile at signature codes and be PDP[j at mess code, i], weak by PDP[12,17] the power-delay profile of identification comprises non-noise level, PDP[12 then, 17] reception of the random access channel targeting sequencing of the 12 specific stamped signature sequence and the 17 mess code transmission is used in reflection by the wireless transmission receiving element.If only little part wireless transmission receiving element transmission random access channel targeting sequencing, the non-noise level of the manufactured power-delay profile meeting of then only little part, these are that correspondence is transmitted the employed stamped signature of wireless transmission receiving element/mess code combination.
Be preferably, link up accumulation unit 50 can from as the pairing Ant_1a of Figure 10 explanation, Ant_1b to Ant_6a, the individual or polygamy sample to received signal more of one of Ant_6b.Because the random access channel targeting sequencing comprises repeated fragment, the accumulation unit 50 that links up can be configured at random access channel targeting sequencing fragment but not whole targeting sequencing is made the power-delay profile.
It is that 4 1024 chip fragments can be carried out antenna diversity for the basis so that link up to accumulate that the configuration of coherent accumulation unit 50 can be cut apart 4096 chip targeting sequencings.In this example, a preferable example is to come the converting antenna sample of signal at each fragment between two antenna receiving signals of the pairing of the antenna from factory length 22 power-delay profiles.So antenna Ant_1a can provide the one 1024 sample to VC[1] make the first power-delay profile value of the power-delay profile of corresponding each stamped signature/mess code combination at the first random access channel targeting sequencing fragment.Antenna conversion AS[1] then be converted to antenna Ant_1b and provide sample 1025 to 2048 to VC[1] the first power-delay profile value of the power-delay profile of corresponding each stamped signature/mess code combination made at the second random access channel targeting sequencing fragment.Antenna conversion AS[1] then the conversion line Ant_1a that saves the situation provide sample 2049 to 3072 to VC[1] make the first power-delay profile value of the power-delay profile of corresponding each stamped signature/mess code combination at the 3rd random access channel targeting sequencing fragment.Antenna conversion AS[1] the line Ant_1a that saves the situation of conversion at last provides sample 3073 to 4096 to VC[1] make the first power-delay profile value of the power-delay profile of corresponding each stamped signature/mess code combination at the 4th random access channel targeting sequencing fragment.Antenna conversion system is delayed a chip at the vector correlation device unit that respectively continues, and makes VC[22] can handle from the signal chip 22 to 1043 of antenna Ant_1a and 2070 to 3091 and make the last power-delay profile value of the power-delay profile of corresponding each stamped signature/mess code combination at the 4th random access channel targeting sequencing fragment from the signal chip 1044 to 2069 of antenna Ant_1b and 3092 to 4115.Figure 15 reflects the timeline of this vector correlation device cell processing, and L equals 22 of example.
The power-delay profile value preferable interpolater 32 that is transferred into after the accumulation unit manufacturing that linked up, it transmits the value of the being interpolated big or small approximation apparatus 33 extremely with original power delayed profile value in regular turn.Though the coherent accumulation of p sample adopts the p chip time to make each power-delay profile value usually, value system at the delay speed of each power-delay profile when handling by each vector row correlator unit from the accumulation unit output that links up.As above-mentioned, this delay system is preferably a chip, and the power-delay profile value system that makes each power-delay profile is by with the manufacturing of 1/Tc speed.So, when provide definition by big or small approximation apparatus 33 handle be expanded the interpolate value of power-delay profile the time, interpolater 32 is preferablely at each power-delay profile chip rate to be doubled as 2/Tc.
When multiple power-delay profile was simultaneously manufactured, interpolater can be configured to the fair speed operation or multiple interpolater can be provided to handle the power-delay profile difference person who is made simultaneously.For example, coherent accumulation unit 50 is configured the power-delay profile at each 16 signature codes and 48 mess codes combination while factory length 22,16 interpolaters can be provided, and each running is expanded the power-delay profile at 1536/Tc total efficiency output speed with the output of 96/Tc acquisition rate.In order to handle this collection output, big or small approximation apparatus 33 can be split into 32 big or small approximation apparatus subelements, and it respectively operates at being similar to by the interpolation unit 32 manufactured sizes that respectively are expanded power-delay profile execution value with 48/Tc.
In the preferred embodiment as Fig. 8 explanation, after the size of big or small approximation apparatus 33 is approximate, be transferred into non-coherent accumulation unit 34 at respectively being expanded the manufactured value system of power-delay profile.As the best finding of Figure 11, the non-coherent accumulation unit 34 preferable circulating structure 62[1 of K that comprise length 2L]-62[K], make each circulating structure can store whole groups that are expanded of big or small approximation at a power-delay profile.Control input 65 is to be provided to control anti-multitask device 66 make each the value system that respectively is expanded the power-delay set of contours that is received from big or small approximation apparatus 33 be directed to each circulating structure 62[1]-62[K].Each group is expanded the power-delay profile and then is directed to door comparing unit 35 from circulating structure, and it can transmit the size and location value that respectively is expanded the power-delay profile RAKE finger detecting unit 36 to the RAKE receiver.Be preferably, only selected several peaks of its position are transferred into RAKE finger detecting unit 36 via door comparing unit 35.This type of pure non-coherent processing does not damage signal noise ratio usefulness and relatively cheap.
There is the stylish power-delay profile can be manufactured.Control signal then selects each circulating structure to upgrade new power-delay profile.Detect for the random access channel targeting sequencing, circulating number of structures is the preferable 16*u of being fixed to.For path search, whether this quantity system is that the basis is selected with time frame basis or the transmission of time slot basis with the power-delay profile, and time frame basis is preferable.Non-coherent accumulation unit 34 can be configured to make circulating output to be controlled by selectivity and make up the related power delayed profile.For example, the power-delay profile that is used for the different random access channel fragment of identical stamped signature/mess code combination can be directed to the door comparing unit of being handled by the RAKE receiver simultaneously 35.Similarly, Sequence Detection hardware is with the time frame basis person that is configured in the path search, except the power-delay profile combination aerial position that is used for antenna diversity combination, non-coherent accumulation unit 34 is also preferable to be configured to allow power-delay profile fragment position to be used for the combination of groove border and to allow power-delay profile groove position to be used for making up between groove.The identical very simple structure that circulating unit is shared is to impel the combination diversity, obtains because all the related power delayed profiles that are combined systems can collect from circulating unit immediately.
Detect for the random access channel targeting sequencing, internal memory preferred size system is approaching to accept the edge, but said structure is simplified the configuration possibility that system can be reflected in Figure 11 at this application support.Yet the random access channel targeting sequencing detects and is not only sequence search person's application.
For example, the package channel technology is the targeting sequencing transmission of the very similar targeting sequencing at the random access channel set forth in detail of set forth in detail for the existing 3GPP specification of shared package channel (CPCH) on basis.Yet for shared package channel, mess code may quantity system be increased to 64.This increases in regular turn implements the illustrated non-coherent accumulation of Figure 11 unit 34 required memories.The internal memory of this easy configuration is born in the too high example, the calculation of the internal memory that preferable enforcement can reduce manufactured power-delay profile when handling.
The 12nd, 14 and 16 figure system provides three alternative, and it provides and replaces the 11st
The alternate process of the non-coherent accumulation unit 34 of figure explanation.For ease of explaining, three substitute system is that explanation is done on the basis with the random access channel targeting sequencing with 4096 chip length, and it also is used to share package channel example, and its targeting sequencing system is split into 4 fragments that length respectively is 1024 chips.The power-delay profile assembly system that is used for each fragment by as the coherent accumulation unit of the unit 50 of Figure 10 explanation to the coherent combined chip sample of 1024 chips, just p=1024 makes.Represent the specific manufactured power-delay profile that is transmitted sequence four fragments then to be linked up and/or non-coherent combination.
The replacer system that reduces internal memory is based on prior selection calculation.Being reflected in three of the 12nd, 14 and 16 figure handles distinct methods afterwards and can specifically be rendered as respectively:
Select in advance by the maximum ordering;
Select in advance by using known maximum position ordering; And
Relatively come to select in advance by the door that uses known location.
Reprocessing is selected in advance at the ordering future events, but the yardstick ordering is preferable these methods that are provided to implement.
At random access channel targeting sequencing test example, be to reaching 48 mess codes, 16 stamped signatures and from 22 to 1024 length variations are done search.Linking up the accumulation unit can be at the large matrix Aj of each fragment creation power-delay profile value, and j=1 to 4 considers all stamped signatures/mess code combination.Be used for fragment matrix A j owing to provide internal memory to store by generation, the value close set of j=1 to 4, in the circulating structure of non-coherent accumulation unit 34, selection in advance can advantageously be used.To be received the targeting sequencing transmission feasible because of considerably less power-delay profile limit number assembly only can be represented for this.The representative of power-delay profile value test system is by integrated noise.
The power-delay that is combined profile system compares door.If value is positioned at more than the selected door, then when each the power-delay outline position value in the power-delay profile begins, the targeting sequencing detection that can be considered.Door is that falsehood caution and the error-detecting speed of the preferable selected 10-3 of making can be reached.When no leading sequence was transmitted, the falsehood caution then took place in the detection if targeting sequencing is considered.When leading sequence is transmitted, if targeting sequencing is not detected, error-detecting takes place then.The traditional door that is used to door detector 35 is to can be used as the reference of falsehood caution and error-detecting speed as selecting the replacer in advance.
Select in advance by the maximum ordering
With reference to Figure 12, the full figure of processing system is that the power-delay profile manufacturing that is expanded of the tool interpolate value of each 2L is provided to the RAKE finger control that is sent to the RAKE receiver that door is approved power-delay profile value and relevant position from the packet size that increases power-delay profile value.The preferable minute system of disposition between the hardware of various functions and software implementation by the preferable function that is implemented in the hardware reduce slightly indicate.
Size approximation apparatus function series is looked linking up of power-delay profile value and/or non-coherent combination and whether is implemented on hardware or software three by expection by selectivity and describes position MAG
1, MAG
2, MAG
3One of them.As betiding position MAG when big or small approximation apparatus function
1The time, the combination system of power-delay profile value represents the combination that links up by the preceding interpolation that preferentially is converted to big or small approximation its complicated composition.As betiding position MAG when big or small approximation apparatus function
3The time, the combination system of power-delay profile value represents non-coherent combination by adding its big or small approximation.When big or small approximation apparatus function betides position MAG
2The time, link up and non-coherent combination all can be implemented and transmits original complex combination value and big or small approximation does the door assessment for each power-delay outline position.Be preferably, if complex combination value or big or small approximation surpass each door, then big or small approximation and relevant position data system relatively are sent to the control of RAKE finger via door.
The time point of Figure 13 explanation of explaining as following paragraph has been arranged, supposed that big or small approximation apparatus function is positioned at MAG
1, handle system by the prior selection of maximum ordering and explanatorily carry out as Figure 12.
First fragment power-delay profile system is produced and interpolation, is represented as A1, and these values are to be transmitted the N maximum of looking for every power-delay profile via collator, and then stores this N complex value and each positional value in internal memory R1.
Second fragment power-delay profile system is produced and interpolation, is represented as A1, simultaneously with ordering A1 value as beginning.A2 value system is transmitted the N maximum of looking for every power-delay profile via collator, and then stores this N complex value and each positional value in internal memory R2.
The 3rd fragment power-delay profile system is produced and interpolation, is represented as A3, simultaneously with ordering A2 value as beginning.A3 value system is transmitted the N maximum of looking for every power-delay profile via collator, and then stores this N complex value and each positional value in internal memory R3.
The 4th fragment power-delay profile system is produced and interpolation, is represented as A4, simultaneously with ordering A3 value as beginning.A4 value system is transmitted the N maximum of looking for every power-delay profile via collator, and then stores this N complex value and each positional value in internal memory R4.
More than the component count system of processed every power-delay profile comprised the add-on assemble of creating by interpolation and can be called as L ' by expection.Preferably, interpolation system doubles the component count of every power-delay profile, makes the power-delay profile at first by with the manufacturing of L assembly, L '=2*L.Maximum number N forever selected less than L ' half, but preferable essence is less than this quantity.For example, search window system and double as 1024 chip persons of L '=2048 because of interpolation, N is preferably 100 makes the highest 100 power-delay profile values system from A1, A2, and each power-delay profile of A3 and A4 is selected.
Table 3 and 4 is to provide adjustable dimension sorting unit and the representative hsrdware requirements of internal memory to implement above processing.
| Sorting unit: the hardware in the | |
| 1 sorting unit | 2.443 |
| | 10 |
| Summation (16 stamped signatures, 2 ordering circulations, even/odd) | 2*2*16*2.443+10＝166 |
Table 3: sequencer hardware
| Sorting unit: every fragment internal memory of bit representation | |
| L=64, N=20,16/word, i/q/ | 20*3*16*48*16＝737280 |
Table 4: every fragment 5 sorting unit internal memories
After this, processor 75a system is provided to the link up value of being stored of power-delay set of contours of the corresponding power-delay profile that makes up four fragments of access memory R1-R4, just by from each A1, A2, each power-delay set of contours of one of A3 and A4 power-delay outline definition is carried out following steps:
Search all R
jThe position, j=1 to 4, its every power-delay set of contours takes place twice.
Coherent complex amplitudes of finding out of combination quilt and store results and relevant position are in software construction S2.
Search all R
jThe position, j=1 to 4, its every power-delay set of contours takes place three times.
Coherent complex amplitudes of finding out of combination quilt and store results and relevant position are in software construction S3.
Search betides each four groups of R
j, j=1 to 4, all positions of every power-delay set of contours.Combination is connected
Pass through the complex amplitudes found out and store results and relevant position in software construction S4.
Except the combination that links up, non-coherent combination and/or both combinations system are with above-mentioned alternative big or small approximation apparatus MAG
1, MAG
2, MAG
3For carrying out on the basis.
Continuation is at being transferred into S2, and each power-delay profile class value of S3 and S4 is to each door K1, K2, and K3 compares processing.If candidate is on door, its position system is stored and targeting sequencing is detected.Because combined value quantity, so S2, the door system of S3 and S4 is different.Door links up based on its characteristic value and reaches also difference of non-coherent criterion, but is selected to reach caution of expection falsehood and error-detecting speed.
Select in advance by using known maximum position ordering
With reference to Figure 14, the full figure of processing system with the tool interpolate value to be expanded the power-delay profile be the basis is provided to the door approval and be expanded the RAKE finger control that power-delay profile size approximation and relevant position are sent to the RAKE receiver from making big or small approximation by big or small approximation apparatus.The preferable minute system of disposition between the hardware of various functions and software implementation by the preferable function that is implemented in the hardware reduce slightly indicate.
Size approximation apparatus function series look be expanded power-delay profile value link up and/or whether non-coherent combination is implemented on the diverse location of hardware or software by selectivity by expection.The non-coherent combination that Figure 14 explanation is expanded power-delay profile value is by adding the preferred embodiment that its big or small approximation is reached.So, the time point of Figure 15 explanation has been arranged, the prior selection of the ordering by using known maximum position is the preferable expositor as Figure 14 that carries out.
First fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A1 be expanded power-delay profile size approximation matrix.These values be preferable be transmitted to look for via collator be transferred into the buffer R1 ' that is sorted
ValThe N1 maximum of every power-delay profile, each positional value system is transferred into correspondence position buffer R1 '
PosThe highest maximum of N1 then is used according to sequence of positions, and the N maximum of this adopted every power-delay profile system is stored in internal memory R1
Val, each positional value system is transferred into correspondence position buffer R1
PosWhen the correspondence position value that is used for corresponding the second, the three and the 4th fragment power-delay profile has been stored when following, with R1
ValAnd R1
PosN1 largest amount of distributor system each first fragment power-delay profile of transmission that the internal memory generation is related and positional value are to software construction composite set S4.
Second fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A2 be expanded power-delay profile size approximation matrix.These value systems at first are transmitted the size and location value that captures per second fragment power-delay profile via the location matches device, and its correspondence then is stored in the highest maximum value position of N1 of each the corresponding first fragment power-delay profile among the internal memory R21.The residue second fragment power-delay profile value system that is represented as A2 ' is transmitted to look for via collator and is transferred into the buffer R2 ' that is sorted
ValThe N2 maximum of every power-delay profile, each positional value system is transferred into correspondence position buffer R2 '
PosThe highest maximum of N2 then is used according to sequence of positions, and the N2 maximum of this adopted every power-delay profile system is stored in internal memory R2
Val, each positional value system is transferred into correspondence position buffer R2
PosWhen the correspondence position value that is used for corresponding the 3rd and the 4th fragment power-delay profile has been stored when following, with R2
ValAnd R2
PosN2 largest amount of distributor system each second fragment power-delay profile of transmission that the internal memory generation is related and positional value are to software construction composite set S3.
The 3rd fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A3 be expanded power-delay profile size approximation matrix.These value systems at first are transmitted the size and location value that captures per the 3rd fragment power-delay profile via the location matches device, its correspondence then is stored in the highest maximum value position of N1 of each the corresponding first fragment power-delay profile among the internal memory R31, and the corresponding the highest maximum value position of N2 that then is stored in each the corresponding second fragment power-delay profile among the internal memory R32.Residue the 3rd fragment power-delay profile value system that is represented as A3 ' is transmitted to look for via collator and is transferred into the buffer R3 ' that is sorted
ValThe N3 maximum of every power-delay profile, each positional value system is transferred into correspondence position buffer R3 '
PosThe highest maximum of N3 then is used according to sequence of positions, and the N3 maximum of this adopted every power-delay profile system is stored in internal memory R3
Val, each positional value system is transferred into correspondence position buffer R3
PosWhen the correspondence position value that is used for corresponding the 4th fragment power-delay profile has been stored when following, with R2
ValAnd R2
PosN3 largest amount of distributor system each second fragment power-delay profile of transmission that the internal memory generation is related and positional value are to software construction composite set S2.
The 4th fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A4 be expanded power-delay profile size approximation matrix.These value systems are transmitted the size and location value that captures per the 4th fragment power-delay profile via the location matches device, its correspondence:
Then be stored in the highest maximum of N1 of each the corresponding first fragment power-delay profile among the internal memory R41
The position,
Then be stored in the highest maximum of N2 of each the corresponding second fragment power-delay profile among the internal memory R42
The position,
Then be stored in the highest maximum of N3 of each the corresponding second fragment power-delay profile among the internal memory R43
The position.
In case the N1 assembly of the 4th fragment power-delay profile is stored in the R41 internal memory, the distributor relevant with the R41 internal memory reaches respectively and R31, similar distributor that the R21 internal memory is relevant and and R1
Val, R1
PosThe distributor that internal memory is relevant is that the alternative integrity value group that transmits is to software construction composite set S4.This integrity value group is the size and location value formation at the N1 position of the corresponding N1 maximum first fragment power-delay profile value of each the the first, the second, the 3rd and the 4th fragment power-delay profile of correspondence.Software construction S4 then transmits the extremely relevant door comparing unit of the combined size value with each positional value, and its combined size value system is compared with door K1.The combined size value that surpasses the K1 door then is sent to the RAKE finger control of RAKE receiver with its each positional value.
In case the N2 assembly of the 4th fragment power-delay profile is stored in the R42 internal memory, the distributor relevant, and similar distributor relevant and and R2 with the R32 internal memory with the R42 internal memory
Val, R2
PosThe distributor that internal memory is relevant is that the alternative integrity value group that transmits is to software construction composite set S3.This integrity value group is the size and location value formation at the N2 position of the corresponding N2 maximum second fragment power-delay profile value of each the second, the three and the 4th fragment power-delay profile of correspondence.Software construction S3 then transmits the extremely relevant door comparing unit of the combined size value with each positional value, and its combined size value system is compared with door K2.The combined size value that surpasses the K2 door then is sent to the RAKE finger control of RAKE receiver with its each positional value.
In case the N3 assembly of the 4th fragment power-delay profile is stored in the R43 internal memory, the distributor relevant, and and R3 with the R43 internal memory
Val, R3
PosThe distributor that internal memory is relevant is that the alternative integrity value group that transmits is to software construction composite set S2.This integrity value group is the size and location value formation at the N3 position of corresponding N3 maximum the 3rd fragment power-delay profile value of each the 3rd and the 4th fragment power-delay profile of correspondence.Software construction S2 then transmits the extremely relevant door comparing unit of the combined size value with each positional value, and its combined size value system is compared with door K3.The combined size value that surpasses the K3 door then is sent to the RAKE finger control of RAKE receiver with its each positional value.Because combined value quantity and S2, each door K1 of S3 and S4, K2, k3 are different, but can be selected to reach caution of expection falsehood and error-detecting speed.
More than processed every power-delay profile assembly number system comprised the add-on assemble of creating by interpolation and can be called as L ' by expection.Preferably, interpolation system doubles the component count of every power-delay profile, makes the power-delay profile at first by with the manufacturing of L assembly, L '=2*L.Maximum total quantity N1+N2+N3 forever selected less than L ' half, but preferable essence is less than this quantity.For example, search window system and double as 1024 chip persons of L '=2048 because of interpolation, N1 is preferably 90 makes the highest 90 power-delay profile values system selected from each power-delay profile of A1; N2 is preferably 80 makes the highest 80 power-delay profile values system selected from each power-delay profile of A2 '; N3 is preferably 50 makes the highest 50 power-delay profile values system selected from each power-delay profile of A3 '.
Relatively come to select in advance by the door that uses known location
With reference to Figure 16, the full figure of processing system with the tool interpolate value to be expanded the power-delay profile be the basis is provided to the door approval and be expanded the RAKE finger control that power-delay profile size approximation and relevant position are sent to the RAKE receiver from making big or small approximation by big or small approximation apparatus.The preferable minute system of disposition between the hardware of various functions and software implementation by the preferable function that is implemented in the hardware reduce slightly indicate.
Size approximation apparatus function series look be expanded power-delay profile value link up and/or whether non-coherent combination is implemented on the diverse location of hardware or software by selectivity by expection.The non-coherent combination that Figure 16 explanation is expanded power-delay profile value is by adding the preferred embodiment that its big or small approximation is reached.So the prior selection of the ordering by using known maximum position is the preferable expositor as Figure 16 that carries out.
First fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A1 be expanded power-delay profile sizes values matrix.These values are preferablely to be transmitted via the door comparing unit, and its sizes values system compares door K4.The sizes values that surpasses the K4 door then is transferred into internal memory R1
Val, each positional value system is transferred into correspondence position internal memory R1
PosWhen the correspondence position value that is used for corresponding the second, the three and the 4th fragment power-delay profile has been stored when following, with R1
ValAnd R1
PosIt is that selectivity transmits the K4 approval size and location value of each first fragment power-delay profile to software construction composite set S4 that internal memory produces related distributor.
Second fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A2 be expanded power-delay profile sizes values matrix.These value systems at first are transmitted the size and location value that captures per second fragment power-delay profile via the location matches device, and its correspondence then is stored in the K4 approval sizes values position of each the corresponding first fragment power-delay profile among the internal memory R21.The residue second fragment power-delay profile value system that is represented as A2 ' is transmitted via the door comparing unit, and its sizes values system compares door K5.The sizes values that surpasses the K5 door then is transferred into internal memory R2
Val, each positional value system is transferred into correspondence position internal memory R2
PosWhen the correspondence position value that is used for corresponding the 3rd and the 4th fragment power-delay profile has been stored when following, with R2
ValAnd R2
PosIt is that selectivity transmits the K5 approval size and location value of each second fragment power-delay profile to software construction composite set S3 that internal memory produces related distributor.
The 3rd fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A3 be expanded power-delay profile sizes values matrix.These value systems at first are transmitted the size and location value that captures per second fragment power-delay profile via the location matches device, its correspondence then is stored in the K4 approval sizes values position of each the corresponding first fragment power-delay profile among the internal memory R31, and the corresponding K5 approval sizes values position that then is stored in each the corresponding second fragment power-delay profile among the internal memory R32.Residue the 3rd fragment power-delay profile value system that is represented as A3 ' is transmitted via the door comparing unit, and its sizes values system compares door K6.The sizes values that surpasses the K6 door then is transferred into internal memory R3
Val, each positional value system is transferred into correspondence position internal memory R3
PosWhen the correspondence position value that is used for corresponding the 4th fragment power-delay profile has been stored when following, with R3
ValAnd R3
PosIt is that selectivity transmits the K6 approval size and location value of each second fragment power-delay profile to software construction composite set S2 that internal memory produces related distributor.
The 4th fragment power-delay profile system is produced and interpolation, and its size is similar to make be represented as A4 be expanded power-delay profile size approximation matrix.These value systems are transmitted the size and location value that captures per the 4th fragment power-delay profile via the location matches device, its correspondence:
Then be stored in the K4 approval sizes values of each the corresponding first fragment power-delay profile among the internal memory R41
The position,
Then be stored in the K5 approval sizes values of each the corresponding second fragment power-delay profile among the internal memory R42
The position,
Then be stored in the K6 approval sizes values of each the corresponding second fragment power-delay profile among the internal memory R43
The position.
In case all component of the first fragment K4 of corresponding the 4th fragment power-delay profile approval sizes values position all is stored in the R41 internal memory, the distributor relevant with the R41 internal memory reaches respectively and R31, similar distributor that the R21 internal memory is relevant and and R1
Val, R1
PosThe distributor that internal memory is relevant is that the alternative integrity value group that transmits is to software construction composite set S4.This integrity value group is the size and location value formation at the correspondence first fragment K4 approval sizes values position of each the the first, the second, the 3rd and the 4th fragment power-delay profile of correspondence.Software construction S4 then transmits the extremely relevant door comparing unit of the combined size value with each positional value, and its combined size value system is compared with door K1.The combined size value that surpasses the K1 door then is sent to the RAKE finger control of RAKE receiver with its each positional value.
In case all component of the first fragment K5 of corresponding the 4th fragment power-delay profile approval sizes values position all is stored in the R42 internal memory, the distributor relevant with the R42 internal memory, and similar distributor relevant with the R32 internal memory and and R2
Val, R2
PosThe distributor that internal memory is relevant is that the alternative integrity value group that transmits is to software construction composite set S3.This integrity value group is the size and location value formation at the correspondence first fragment K5 approval sizes values position of each the second, the three and the 4th fragment power-delay profile of correspondence.Software construction S3 then transmits the extremely relevant door comparing unit of the combined size value with each positional value, and its combined size value system is compared with door K2.The combined size value that surpasses the K2 door then is sent to the RAKE finger control of RAKE receiver with its each positional value.
In case all component of the first fragment K6 of corresponding the 4th fragment power-delay profile approval sizes values position all is stored in the R43 internal memory distributor relevant with the R43 internal memory, and and R3
Val, R3
PosThe distributor that internal memory is relevant is that the alternative integrity value group that transmits is to software construction composite set S2.This integrity value group is the size and location value formation at the corresponding first fragment K6 approval sizes values position of each the 3rd and the 4th fragment power-delay profile of correspondence.Software construction S2 then transmits the extremely relevant door comparing unit of the combined size value with each positional value, and its combined size value system is compared with door K3.The combined size value that surpasses the K3 door then is sent to the RAKE finger control of RAKE receiver with its each positional value.
More than processed every power-delay profile assembly number system comprised the add-on assemble of creating by interpolation and can be called as L ' by expection.Preferably, interpolation system doubles the component count of every power-delay profile, makes the power-delay profile at first by with the manufacturing of L assembly, L '=2*L.The power-delay profile assembly total quantity that K4, K5 and K6 door be forever selected to make the every power-delay profile that is transferred into internal memory less than L ' half, but preferable essence is less than this quantity.K4, K5 and K6 door can be identical value and the preferable value that is set less than the K1 door.Because combined value quantity and S2, each door K1 of S3 and S4, K2, k3 are different.Door can be reached caution of expection falsehood and error-detecting speed by the selection of collection property.
Above-mentioned afterwards the processing not only can be applicable to the targeting sequencing fragment of selectivity combination as the power-delay profile of 3GPP random access channel and shared package channel targeting sequencing, also can be applied to making up as being produced the power-delay profile that is used for path search upgrading.During 3GPP set, the power-delay profile that specific user's equipment-Node B connects detected and the relevant finger appointment of RAKE receiver seldom takies a radio frame (10ms), and it is to be enough to length to changing the decline situation that the power-delay profile is effectively estimated fully.Therefore, the expectation path search is connected detected with (unless very low velocity) all from user's equipment to Node B and keeps being determined the path to connect and no longer exist for the mode of ending to design up to it.By to special time period average power-delay profile result, if the path by counter be detected on during the special time in, it disappears that it is all kept even the certain power delayed profile upgrades reflection.
Usually, non-coherent accumulation is the increase signal noise ratio and is not limited by the decline situation, therefore by during the expection long duration.Time span is usually by the renewal rate restriction that is configured the path at RAKE receiver place.This renewal rate can every system frame once, and non-ly link up that to accumulate in this situation be preferable no longer than a time frame.
Candidate's profile average during the special time can avoid missing the active path that of short duration detection does not take place.During between this moment is to decide on relative velocity and action edge environment.Reasonable value is 5 frames or 50ms.
The 3GPP Node B is assembled usually and receives the transmission with two antennas.The sequence detection system that is arranged to path search can carry out the RX diversity that double antenna receives immediately.Double antenna receives not relevant with quick decline usually, and the dawn is with decline is relevant at a slow speed.That is to say: the detected position of the signal path of two antennas is identical, and path amplitude difference.This can be received each signal from two antennas by non-coherent combination and produce noise and reduce the level decline and alleviate the power-delay profile of making for the basis and carry out.
The control of selectivity path search
Path search person one purpose system is to its timely mobile identification new signal path and follow the trail of previous detected signal path.In time moving system produces because of the being seen frequency shift (FS) of Node B.This frequency shift (FS) is to be moved Doppler skew that wireless transmission receiving element speed introduces and the totalling of the frequency shift (FS) of being introduced by its oscillator.
As above-mentioned, some or all path from the wireless transmission receiving element to base station connects and may decline fast.As if decide on mobile wireless transmission receiving element speed, the path connects because of interference disappears, the dawn then occurs again.Because of the degradation of decline does not mean that connection does not exist; It can reflect that path system temporarily can not identification because of phase interference.The path is usually after mobile wireless transmission receiving element moves half-wavelength rank and reappear.
Because unique spreading codes is other each transmission wireless transmission receiving elements of communicating by letter and being established relatively, so in order to promote path search, the transmission wireless transmission receiving element that each communication has been established can continue the broadcast preamble sequence in pilot channel.Leading symbol in the time slot of one of targeting sequencing known transmission form system repetition transmission system time frame, its each time slot system is comprised 256 chips by 10 symbol definitions and each symbol system.Unique mess code is the transmission wireless transmission receiving element coding targeting signal that is used at communicating by letter with base station, even, all can link up and make up all chips of whole time slot in the vector basis relevant with each mess code so be not that all symbols that are transmitted are all identical.
Sequence detection system 30 can be used to be produced next the generation at the continuous power delayed profile of sequence at the respectively communication that is received from different radio transmission receiving element in the sequence mode by change and reflect that different spreading codes produce the power-delay profiles.For example, simultaneously communication system is carried out with four wireless transmission receiving elements, at each person's power-delay profile can be produced continuously and then this processing be repeated to provide and be updated power-delay profile value.
Producing one of continuous power delayed profile method at the signal that is received from different radio transmission receiving element, is to begin each continuous power delayed profile of time slot B0T is done the accumulation that links up.Figure 17 explanation is at four wireless transmission receiving elements, wireless transmission receiving element 1, wireless transmission receiving element 2, wireless transmission receiving element 3, wireless transmission receiving element 4, the continuous power delayed profile of reprocessing length L, this received signals are by chance by precise synchronizationization and be transmitted in the time slot of ten 256 chip symbols of every time slot and make time slot have 2560 length.Because received signals is synchronized, each time slot of every signal begins to be finished to do accurate calibration at all wireless transmission receiving elements with preceding time slot.So cording has pair specific wireless transmission receiving element signal to finish accurate four power-delay profile time slots delay of upgrading between the power-delay profile in this example.This is reflected in Figure 17, be used for one of wireless transmission receiving element 1 power-delay profile system and be completed at time slot 1 and add when the L chip finishes, and next the power-delay profile system that is used for wireless transmission receiving element 1 is completed at time slot 5 and adds when the L chip finishes.
Yet the precise synchronization system of received signals is difficult to reach and keep practice, when particularly the wireless transmission receiving element is taken action.For example, the obvious characteristic of 3GPP Frequency Division Duplexing system is that the user's device signal that arrives at Node B is not synchronized.Therefore, each user's equipment-Node B connects cording different time points.
The time point at least one strong relatively path of common variant reception transmission is known, and transmission relative time frame starting position system is by identification.So, learn the time point side-play amount between variant signal, received signals can preferentially receive the basis and go up by command process.How Figure 18 explanation is used for the received signals of four wireless transmission receiving elements by shift time.Wireless transmission receiving element 1 is illustrated as first received signals of four signals, and wireless transmission receiving element 4 is illustrated as the last received signals of four signals.Because wireless transmission receiving element received signals is not synchronized, so be to need the adjustment of power-delay profile time point to postpone in the scheduling.
Figure 19 explanation is at four wireless transmission receiving elements of Figure 18, wireless transmission receiving element 1, wireless transmission receiving element 2, wireless transmission receiving element 3, wireless transmission receiving element 4, the continuous power delayed profile of reprocessing length L, this received signals are not synchronized and are transmitted in the time slot of ten 256 chip symbols of every time slot and make time slot have 2560 length.Because received signals is not synchronized, so the preceding cording that each continuous power delayed profile produces has the time point that equals required time point to postpone.For example, power-delay profile generation at wireless transmission receiving element 2 is when starting from 2 beginnings of the time slot of wireless transmission receiving element 2, it has the time point skew that the time slot 1 with wireless transmission receiving element 1 finishes, so to begin be to be postponed by this time quantum in the processing of wireless transmission receiving element 2 power-delay profiles.Similarly, power-delay profile generation at wireless transmission receiving element 3 is when starting from 3 beginnings of the time slot of wireless transmission receiving element 3, it has the time point skew that the time slot 2 with wireless transmission receiving element 2 finishes, so to begin be to be postponed by this time quantum in the processing of wireless transmission receiving element 3 power-delay profiles.Similarly, power-delay profile generation at wireless transmission receiving element 4 is when starting from 4 beginnings of the time slot of wireless transmission receiving element 4, it has the time point skew that the time slot 3 with wireless transmission receiving element 3 finishes, so to begin be to be postponed by this time quantum in the processing of wireless transmission receiving element 4 power-delay profiles.
When the time slot 4 of wireless transmission receiving element 4 finished, next the power-delay profile system that is used for wireless transmission receiving element 1 was produced by scheduling.Yet D chip accumulated delay system had betided the time point of wireless transmission receiving element 1 signal at that time.So, when handling time slot 5 beginnings that can not start from wireless transmission receiving element 1 at next power-delay profile of wireless transmission receiving element 1 received signals, and be delayed when the time slot 6 of wireless transmission receiving element 1 begins the 2560-D chip delays.Because all the power-delay profiles in this example are handled system when starting from the signal time groove and beginning, can be called as the time slot disposal ability so postpone feature.
The inventor has understood the equal-wattage delayed profile that is not subject to the time slot transmission under the particular case can be manufactured.Particularly, the inventor has understood the typical targeting signal that transmits for by 3GPP specific wireless transmission receiving element, and the sample accumulation of the identical number of continuous symbol of sample of signal can be used for the equal-wattage delayed profile that path search upgrades with generation.So the coherent accumulation unit 31 of sequence generator 30 can advantageously be configured to make the continuous power delayed profile at only having an asynchronization received signals of the different radio transmission receiving element that the symbolic base disposal ability postpones.Accumulated value at the manufactured power-delay profile of each power-delay profile assembly still is accumulated as the basis with 2560 chips, but the processing of each power-delay profile begins only need be transmitted sign-on relatively, but not time slot begins.
Figure 20 explanation is at four wireless transmission receiving elements of Figure 18, wireless transmission receiving element 1, wireless transmission receiving element 2, wireless transmission receiving element 3, wireless transmission receiving element 4, the continuous power delayed profile of reprocessing length L, this received signals are not synchronized and are transmitted in the time slot of ten 256 chip symbols of every time slot and make time slot have 2560 length.Because received signals is not synchronized, so the preceding cording that each continuous power delayed profile produces has the time point that equals required time point to postpone.For example, power-delay profile generation at wireless transmission receiving element 2 is when starting from 2 beginnings of the time slot of wireless transmission receiving element 2, it has the time point skew that the time slot 1 with wireless transmission receiving element 1 finishes, so to begin be to be postponed by this time quantum in the processing of wireless transmission receiving element 2 power-delay profiles.Similarly, power-delay profile generation at wireless transmission receiving element 3 is when starting from 3 beginnings of the time slot of wireless transmission receiving element 3, it has the time point skew that the time slot 2 with wireless transmission receiving element 2 finishes, so to begin be to be postponed by this time quantum in the processing of wireless transmission receiving element 3 power-delay profiles.Similarly, power-delay profile generation at wireless transmission receiving element 4 is when starting from 4 beginnings of the time slot of wireless transmission receiving element 4, it has the time point skew that the time slot 3 with wireless transmission receiving element 3 finishes, so to begin be to be postponed by this time quantum in the processing of wireless transmission receiving element 4 power-delay profiles.
When the time slot 4 of wireless transmission receiving element 4 finished, next the power-delay profile system that is used for wireless transmission receiving element 1 was produced by scheduling.The processing of the time slot disposal ability of Figure 19 explanation for the basis arranged, and D chip accumulated delay system had betided the time point of wireless transmission receiving element 1 signal at that time.Yet, by the symbol disposal ability is the processing on basis, next power-delay profile processing need not starting from wireless transmission receiving element 1 next time of origin groove at wireless transmission receiving element 1 received signals, during time slot 6 beginnings of wireless transmission receiving element 1 just, but be carried out at wireless transmission receiving element 1 next generation symbol by scheduling, in the time slot disposal ability example, the delay system less than 256 is significantly less than the 2560-D chip delays.Arbitrarily indicating symbol is J, and Figure 20 illustrates that the accumulation of power-delay profile value is that the J symbol of time slot 5 of relevant wireless transmission receiving element 1 is to (J-1) symbol of the time slot 5 of wireless transmission receiving element 1.J symbol that similarly can each time slot at next power-delay profile manufacturing of other wireless transmission receiving element carries out.
Usually, the power-delay profile manufacturing of tool sequential detector 30 system can the symbol disposal ability be that use on the basis, has the J symbol sebolic addressing of a size B, and SYM (0) is linked up at each power-delay profile assembly to accumulate to SYM (J-1).The manufacturing of power-delay profile is followed the preferable selectivity that is controlled to and is made the continuous power delayed profile at being received wireless transmission receiving element wireless signal, make when the N targeting signal is received simultaneously, the power-delay profile can at each wireless signal WS (0) to WS (N-1) be derived from known time point the earliest extremely the latest received signals make in proper order.Start from the first received the earliest wireless signal WS (0), the power-delay profile is the manufactured symbol SYM (j) that starts from simultaneously the time slot with the first wireless signal WS (0) reception time point.The continuous continuation of the power-delay profile manufacturing received wireless signal WS (n) that respectively continues, n=1 to N-1 begins, after accurate delay of the time of the known time point of wireless signal WS (n), appearance receives the symbol SYM ((j+ (I* (N-1))) modJ) of the time slot of time point to having wireless signal WS (n)), the power-delay profile that is received wireless signal WS (N-1) is by this latest handled system and is started from D chip accumulated delay and have the symbol SYM ((j+ (I*n)) modJ) that the first wireless signal WS (0) receives the time slot of time point relatively) beginning.The next power-delay profile manufacturing that is received wireless signal starts from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, and wherein K is less than (the maximum integer of (j+ (I* (N-1))+(D/B)) modJ.
The coherent accumulation of Figure 20 example system explanation power-delay profile assembly is the symbolic number that is performed in the time slot, just I=J.In this example, the continuous continuation of the power-delay profile manufacturing received wireless signal WS (n) that respectively continues, n=1 to N-1 begins, after accurate delay of the time of the known time point of wireless signal WS (n), appearance receives the symbol SYM (j) of the time slot of time point to having wireless signal WS (n), and be received next manufactured power-delay profile system of wireless signal WS (0) at first and start from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, wherein K is the maximum integer less than (j+ (D/B)) modJ.
The reduction of processing delay has cumulative bad even more obvious because of it to the time.When each wireless transmission receiving element 1 power-delay profile is produced, use the symbol disposal ability scheduling that is used for the 2560-D chip that the time slot disposal ability handles relatively less than the similar delay system of 256 chips.
Because the 3GPP specification allows greater than a type 256 bit signs, so symbolic base but not the scheduling on groove basis is non-quilt accurately makes identical generation and handle on the pilot channel and be received the 3GPP signal.Yet difference is minimum relatively and can reach by comparing the how non-coherent accumulation of groove basis scheduling manufacturing.
Make the time diversity that the power-delay profile can be facilitated non-coherent accumulation at the coherent accumulation of the identical received signals scheduling of different time unit 40.This is particularly useful in by the various path fading of counter received signals and improves usefulness.This can be called as the non-pseudorandom scheduling of vector correlation device, its can with as on August 14th, 2003 number of patent application US-2003-0152167-A1 and all Application No. the 10/304th of assignee of the present invention, title proposed be to be used for the receiver of aerogram platform on November 26th, 403,2002 and the non-pseudo-random method of method is compared.Yet the non-pseudorandom scheduling of vector correlation device is the usefulness that provides essence to equate with low implementation cost.
Be preferably, Fig. 8-12,14 and 16 assembly system are implemented on single integrated circuit as ASIC(Application Specific Integrated Circuit) (ASIC).Yet this assembly also can be implemented on the multiple stand-alone integrated circuit immediately.Be denoted as and have the preferable assembly that is implemented in the software and can be provided as firmware on this ASIC(Application Specific Integrated Circuit).
More than the reference of explanation system is illustration and not limited 3GPP and 3GPP frequency division duplexing only.The present invention can be applied to other wireless communication system that known array is detected by wireless transmission receiving element receiver.Skilled artisan will be understood other variation according to the invention and modification.
Claims (51)
1. wireless transmission receiving element (WTRU) that is used for wireless communication system comprises:
One antenna system receives at least one sequence flows of wireless signal and manufacturing received signals sample to select speed;
One N continuous vector correlation device array VC[1] to VC[N], respectively be configured to the set of dimensions that the accumulation L that links up is received in order sample of signal;
This vector correlation device system and this antenna system coupling make for any given N+L-1 sample sequence, S
1To S
N+L-1, this sample S wherein
1Be by this primary vector correlator VC[1] first assembly of the group handled, each vector correlation device VC[i], wherein i=1 to N is to handle each sample S
iTo S
I+L-1
One sequence generator is to be configured to the selectivity generation will be detected on the known array that is received wireless signal, and is coupled with this vector correlation device, makes each vector correlation device VC[i], wherein i=1 to N is to handle a series of sample S
1To S
N+L-1Interior L series sample group, the generation component Gj of the given known array of L generation component, G
0To G
L-1, be by with VC[i] in sample Si+j mix, make and accumulated on VC[i by linking up] mixed number; And
One vector correlation device accumulator control circuit is the accumulation mixed number output that is configured to each vector correlation device of Selective Control, makes each vector correlation device export accumulated value, a series of by this assembly of N at least E after multiple group of M of selection of accumulation L accumulation mixed number
1To E
NPower-delay profile (PDPs) be manufactured, wherein each power-delay profile (PDP) assembly Ei system represent this vector correlation device VC[i], i=1 to N wherein, this M*L mixed number of manufacturing links up and accumulates.
2. according to the wireless transmission receiving element (WTRU) of claim 1, it is characterized in that, this vector correlation device control circuit system is configured to the accumulation mixed number output of each vector correlation device of Selective Control, makes each P of vector correlation device output select quantity accumulated value, a series of by this N*P assembly E
1To E
M*PPower-delay profile (PDPs) be manufactured, each power-delay profile (PDP) assembly E wherein
I+ (j*N)System represent this vector correlation device VC[i], wherein i=1 to N and j=0 to P-1, this M*L mixed number of manufacturing links up and accumulates.
3. according to the wireless transmission receiving element (WTRU) of claim 1, it is characterized in that:
This antenna system system is configured multiple antenna and makes the multiple sequence stream of received signals sample with selected speed, and
This vector correlation device system respectively comprises a may command antenna switch, and it is configured to select a sample flow from this multiple sample flow, to receive the sample of being handled by vector correlation device out of the ordinary.
4. according to the wireless transmission receiving element (WTRU) of claim 3, it is characterized in that vector correlation device array system comprises antenna switching circuit, it is configured to control this antenna switch and makes for any given N+L-1 sample sequence, S
1To S
N+L-1, it is characterized in that this sample S
1Be this primary vector correlator VC[1 that is received from specific sample stream] handled group first assembly, each vector correlation device VC[i] antenna switch out of the ordinary, wherein i=1 to N is to be controlled to select vector correlation device VC[i out of the ordinary] specific sample stream handle from its received sample S out of the ordinary
iTo S
I+L-1
5. according to the wireless transmission receiving element (WTRU) of claim 1, it is characterized in that:
This vector correlation device respectively is configured plural n accumulator device AD
1To AD
n
Each accumulator device AD out of the ordinary
jJ=1 to n, system is coupled to this sequence generator to receive common generation module and to be coupled by the handled sample of signal of this vector correlation device out of the ordinary by selectivity, make that each sample can be by the different series processing of n to make the n accumulation of mixed number, this vector correlation device can be made n power-delay profile simultaneously by this, its each corresponding n not homotactic one of them.
6. according to the wireless transmission receiving element (WTRU) of claim 1, it is characterized in that:
This sequence generator comprises a mess code generator and n signature codes generator, and is configured n output SGO
1To SGO
n, make each sequence generator export SGO
jDifferent stamped signatures/mess code the composite sequence of an exportable generation component;
This vector correlation device system respectively is configured plural n accumulator device AD
1To AD
n
Each accumulator device AD out of the ordinary
jJ=1 to n, system optionally is coupled to this sequence generator, to receive common generation module and to mix by the handled sample of signal of this vector correlation device out of the ordinary, make that each sample can be by the different series processing of n, to make the n accumulation of mixed number, this vector correlation device array can be made n power-delay profile simultaneously by this, its each to should n not homotactic one of them.
7. according to the wireless transmission receiving element (WTRU) of claim 1, it is characterized in that this vector correlation device array system is with the fast 48 times speed operation of more selected sample rate.
8. according to the wireless transmission receiving element (WTRU) of claim 1, further comprise:
One interpolater is and the coupling of this vector correlation device, and is configured to increase this component count by interpolation method and makes from the plural P of P to an expection and be expanded the power-delay profile; And
Processing unit after one thing is expanded the power-delay profile in order to handle this, comprises:
One big or small approximation apparatus is configured to provide the big or small approximation that is expanded power-delay profile value; And
One door apparatus for evaluating;
This afterwards processing unit system be configured related power delayed profile positional value to the RAKE receiver types device that transmits big or small approximation and approved by this door device.
9. wireless transmission receiving element (WTRU) according to Claim 8 is characterized in that, this wireless transmission receiving element (WTRU) is to be configured to one of to be used as in the whole world action telecommunication system (UMTS) Node B (NodeB).
10. wireless transmission receiving element (WTRU) according to Claim 8 is characterized in that, this wireless transmission receiving element (WTRU) is to be configured to one of to be used as in the whole world action telecommunication system (UMTS) user's equipment (UE).
11. a processing is received the method for wireless signal, comprises:
Select speed to make at least one sequence flows of received signals sample with one;
Use the vector correlation device VC[1 of a sequence array N] to VC[N] come the L of the continuous received signal sample of coherent accumulation to tailor group, make for any given N+L-1 series of samples, S
1To S
N+L-1, sample S wherein
1Be by this primary vector correlator VC[1] first component groups of one of handling, each vector correlation device VC[i], wherein i=1 to N is to handle each other sample S
iTo S
I+L-1
Selectivity produces and is detected on the known array that is received in the wireless signal;
Mix this in coherent accumulation period and produced known array, make each vector correlation device VC[i], wherein i=1 to N handles at a series of sample S
1To S
N+L-1In L continuous sample group the time, one of given known array of L generation component generation component Gj, G
0To G
L-1, be by with VC[i] in sample Si+j mix to make by linking up accumulate on VC[i] in mixed number; And
The output of one of each vector correlation device of Selective Control accumulation mixed number makes each vector correlation device select to export accumulated value, a series of by this assembly of N at least E after the multiple M group in one of accumulation L accumulation mixed number
1To E
NThe power-delay profile (PDPs) of sequence is manufactured, and wherein the representative of each power-delay profile (PDP) assembly Ei system is by vector correlation device VC[i], i=1 to N wherein, the coherent accumulation of the M*L mixed number of manufacturing.
12. the method according to claim 11 is characterized in that, this vector correlation device system is controlled by selectivity, makes each vector correlation device output one select the accumulated value of quantity P, a series of by this N*P assembly E
1To E
N*PPower-delay profile (PDPs) be manufactured, each power-delay profile (PDP) assembly E wherein
I+ (j*N)System representative is by this vector correlation device VC[i], wherein i=1 to N and j=0 to P-1, the coherent accumulation of this M*L mixed number of manufacturing.
13. the method according to claim 11 is characterized in that, is manufactured in the multiple sequence stream of the received signal sample of selecting speed, and
From sample flow system one of between this multiple sample flow by the sample of selecting from it to handle by each vector correlation device out of the ordinary to receive.
14. the method according to claim 13 is characterized in that, it is that Be Controlled makes any given serial N+L-1 sample, S that this sample flow is selected
1To S
N+L-1, this sample S wherein
1Be by this primary vector correlator VC[1 that is received from specific sample stream] handled group first assembly, each vector correlation device VC[i], wherein i=1 to N is to be controlled to select this each vector correlation device VC[i] specific sample stream to handle from the sample S out of the ordinary that it was received
iTo S
I+L-1
15. the method according to claim 11 is characterized in that, this vector correlation device system respectively is configured plural n accumulator device AD
1To AD
n, the accumulation period that wherein should link up, each accumulator device AD out of the ordinary
jJ=1 to n, be selectivity receive common produce module in order to mix by the handled sample of signal of this vector correlation device out of the ordinary, make that each sample can be by the different series processing of n, to make the n accumulation of mixed number, the accumulation that should link up by this can be made n power-delay profile simultaneously, its each corresponding n not homotactic one of them.
16. the method according to claim 15 is characterized in that:
This sequence produces system's use and is configured parallel output n sequence SGO
1To SGO
nOne of mess code generator and n signature codes generator, make each sequence SGO
jBe by the different stamped signatures of one of generation component/mess code combination;
At this coherent accumulation period, each accumulator device AD out of the ordinary
jJ=1 to n, be that selectivity receives the common module that produces, with with mix by the handled sample of signal of this vector correlation device out of the ordinary, make that each sample can be by the different series processing of n, to make the n accumulation of mixed number, can make n power-delay profile simultaneously by this, its each to should n not homotactic one of them.
17. the method according to claim 11 is characterized in that, this accumulation system of linking up is with the fast 48 times speed operation of this selected sample rate.
18. the method according to claim 11 is characterized in that, further comprises:
Increase this component count by interpolation method and expect that from P to plural P is to make extended power delayed profile (PDPs); And
Handle this extended power delayed profile (PDPs), it comprises the big or small approximation of making extended power delayed profile (PDP) value, makes big or small approximation and this related power delayed profile positional value of being approved by the door device can be transferred into RAKE acceptor device type.
19. the accumulation unit that links up, its processing are used for the sequence flows of received signals sample of the wireless transmission receiving element (WTRU) of wireless communication system, comprise:
One N continuous vector correlation device sequence array VC[1] to VC[N], respectively being configured to the coherent L that is received in order sample of signal that accumulates and tailoring group;
This vector correlation device is that the received signals sample flow is handled in configuration, makes for any given serial N+L-1 sample, S
1To S
N+L-1, this sample S wherein
1Be by this primary vector correlator VC[1] handled group first assembly, each vector correlation device VC[i], wherein i=1 to N is to handle sample S out of the ordinary
iTo S
I+L-1
One sequence generator is to be configured to selectivity produce and will be detected on the known array that receives wireless signal, and with this vector correlation device coupling, make each vector correlation device VC[i], wherein i=1 to N is that processing is at a series of sample S
1To S
N+L-1In L continuous sample group, the given known array of L generation component by generation component Gj, G
0To G
L-1, be and VC[i] in sample Si+j mix, accumulate on VC[i to make by linking up] mixed number; And
One vector correlation device control circuit is to be configured to the output of one of each vector correlation device of Selective Control accumulation mixed number, makes each vector correlation device to export accumulated value, a series of by this assembly of N at least E after multiple group of M of selection of accumulation one L accumulation mixed number
1To E
NPower-delay profile (PDPs) be manufactured, wherein the representative of each power-delay profile assembly Ei system is by this vector correlation device VC[i], i=1 to N wherein, this M*L mixed number of manufacturing accumulation that links up.
20. coherent accumulation unit according to claim 19, it is characterized in that, this vector correlation device control circuit system is configured to the accumulation mixed number output of each vector correlation device of Selective Control, makes P accumulated value of selecting quantity of each vector correlation device output, a series of by this N*P component sequence E
1To E
N*PPower-delay profile (PDPs) be manufactured, each power-delay profile assembly E wherein
I+ (j*N)System represent this vector correlation device VC[i], wherein i=1 to N and j=0 to P-1, this M*L mixed number of manufacturing links up and accumulates.
21. coherent accumulation unit according to claim 19, it is characterized in that, this vector correlation device system respectively comprises a may command conversion equipment, it is configured to from selecting a sample flow between multiple sample flow, receive the sample of being handled by this vector correlation device out of the ordinary thus, and further comprise a conversion control circuit, it is configured to control this conversion equipment, make for any given N+L-1 sample sequence, S
1To S
N+L-1, this sample S wherein
1System is by this primary vector correlator VC[1 that is received from specific sample stream] handled group first assembly, each vector correlation device VC[i] antenna switch out of the ordinary, wherein i=1 to N is to be controlled to select vector correlation device VC[i] specific sample flow this to handle from the sample S out of the ordinary that it was received
iTo S
I+L-1
22. this invention according to claim 19 is characterized in that:
This vector correlation device respectively is configured plural n accumulator device AD
1To AD
n
Each accumulator device AD out of the ordinary
jJ=1 to n, system is coupled to this sequence generator to receive common generation module and to be coupled by the handled sample of signal of this vector correlation device out of the ordinary by selectivity, make that each sample can be by the different series processing of n to make the n accumulation of mixed number, this vector correlation device array can be made n power-delay profile simultaneously by this, its each corresponding n not homotactic one of them.
23. this invention according to claim 19 is characterized in that:
This sequence generator comprises a mess code generator and n signature codes generator, and is configured n output SGO
1To SGO
n, make each sequence generator export SGO
jDifferent stamped signatures/mess code the composite sequence of an exportable generation component;
This vector correlation device system respectively is configured plural n accumulator device AD
1To AD
n
Each accumulator device AD out of the ordinary
jJ=1 to n, system is coupled to this sequence generator by selectivity, to receive common generation module and to mix by the handled sample of signal of this vector correlation device out of the ordinary, make that each sample can be by the different series processing of n, to make the n accumulation of mixed number, this vector correlation device array can be made n power-delay profile simultaneously by this, its each to should n not homotactic one of them.
24. a wireless transmission receiving element (WTRU) that is used for wireless communication system comprises:
One power-delay profile manufacturing cell, it makes the G1-GN of group of corresponding power-delay profile (PDPs), it respectively has one of continuous assembly and selects number L, it has the value that the sample sequence group links up and accumulates that is received of mixing with known array, system of wherein corresponding power-delay profile group is by the power-delay outline definition from each group, make that each power-delay profile assembly can use identical known array to make based on coherent accumulated process for all power-delay profiles of corresponding power-delay set of contours;
One post-processing unit is configured to select the L/2 power-delay profile assembly less than each power-delay profile, and stores this selected power-delay profile assembly value and power-delay outline position value out of the ordinary;
A series of these post-processing units further are configured to make up the PDP value of storage, and each PDP components values of the feasible corresponding PDPs group that is stored for identical PDP out of the ordinary position is combined; And
This post-processing unit further is configured to selectivity and assesses the combined value of power-delay outline position out of the ordinary to selected door, come by door approval combined value and positional value out of the ordinary, with further signal processing, it is the known array institute transmission signals that is used to make each power-delay profile assembly that is used to determine the received signals path.
25. this invention according to claim 24 is characterized in that, this afterwards processing unit system be configured to select the N peak of each power-delay profile, wherein N＞2 and＜L/2.
26. wireless transmission receiving element (WTRU) according to claim 25, it is characterized in that, this power-delay profile assembly value system comprises homophase and quadrature is formed, wherein this post-processing unit can be configured to by the combination that links up and come the selectivity combination to be stored power-delay profile assembly value to carry out the door assessment, and this post-processing unit system further is configured to calculate one of each combined value of being approved by door big or small approximation, uses door and approves that a big or small approximation and a positional value out of the ordinary can be used to further signal processing to determine the received signals path.
27. wireless transmission receiving element (WTRU) according to claim 25, it is characterized in that, this power-delay profile assembly value system comprises homophase and quadrature is formed, wherein this post-processing unit can be configured to come the selectivity combination to be stored power-delay profile assembly value by the combination that links up and do the door assessment, and this post-processing unit system further is configured to:
Calculate the big or small approximation that respectively is stored power-delay profile assembly value;
One of the power-delay profile assembly value of the corresponding combination that linked up of non-coherent combination big or small approximation; And
Assess respectively the coherent and non-coherent combined value of door is approved that power-delay outline position value out of the ordinary decides the received signals path with further signal processing.
28. wireless transmission receiving element (WTRU) according to claim 24, it is characterized in that, by handled this power-delay profile assembly value of this post-processing unit, the coherent cumulative size that is the sequence of signal samples group is approximate, and wherein this post-processing unit system is configured to and comes the selectivity combination to be stored power-delay profile assembly value by non-coherent combination to do the door assessment.
29. the wireless transmission receiving element (WTRU) according to claim 24 is characterized in that, this post-processing unit system is configured to
Select the limit number of power-delay profile assembly and store these components values and positional value out of the ordinary from first G1 of group of power-delay profile;
Organize each other when processed in power-delay profile group, from the corresponding power-delay profile storage assembly value of a power-delay set of contours and distinctly be set up the positional value out of the ordinary of assembly;
Then, do not select one of other assembly limit number from matching from the power-delay profile of any position of the selected assembly of this power-delay profile of the G1 of this first group.
30. wireless transmission receiving element (WTRU) according to claim 29, it is characterized in that, this post-processing unit system is configured to based on the highest N value of selecting the power-delay profile assembly, selects assembly from this G1 of first group power-delay profile, and wherein N is less than L/4.
31. wireless transmission receiving element (WTRU) according to claim 29, it is characterized in that, this afterwards processing unit system be configured to by the door approval and select assembly from first G1 of the group power-delay profile, this door system is set, and makes less than the L/4 assembly to be selected from this G1 of first group power-delay profile respectively.
32. one kind is used for wireless transmission receiving element (WTRU) processing unit afterwards, wherein the G1-GN of group of power-delay profile is manufactured, respectively have one of continuous assembly and select number L, value with coherent accumulation that is received the sample sequence group of representing that quilt is mixed with known array, wherein corresponding power-delay set of contours is to define by the power-delay profile from each group, for all power-delay profiles of corresponding power-delay profile (PDPs) group, each power-delay profile assembly system uses the coherent accumulated process of identical known array to make as the basis; This post-processing unit comprises:
One hardware cell is configured to select the L/2 power-delay profile assembly less than each power-delay profile also to store this selected power-delay profile assembly value and power-delay outline position value out of the ordinary; And
One software unit is configured to the selectivity combination and is stored power-delay profile value, makes each the power-delay profile assembly value system that is stored the corresponding power-delay set of contours that is used for identical each power-delay outline position be combined; And
This software unit further is configured at power-delay outline position out of the ordinary selected door to be assessed this combined value, do further signal processing to transmit door approval combined value and positional value out of the ordinary, with the received signals path of this known array institute transmission signals of being used to determine this power-delay profile assembly out of the ordinary to be rely and making.
33., it is characterized in that this post-processing unit system is configured to according to processing unit after the claim 32
Select the limit number of power-delay profile assembly and store these components values to reach positional value separately from first G1 of group of power-delay profile;
When power-delay profile group is processed each other, from each corresponding power-delay profile storage assembly value of a power-delay set of contours and distinctly be placed assembly distinctly from positional value;
Then do not select one of other assembly limit number from the power-delay profile of any position of the selected assembly of this G1 of first group from matching.
34. method that is used for wireless transmission receiving element (WTRU) processing power delayed profile, it is characterized in that, the G1-GN of group of corresponding power-delay profile respectively has one of module and selects number L, it has the value of the coherent accumulation that is received the sample sequence group of representing that quilt is mixed with known array, wherein corresponding power-delay set of contours is to define by the power-delay profile from each group, for all power-delay profiles of corresponding power-delay set of contours, each power-delay profile assembly system can use the coherent accumulated process of identical known array to make as the basis; This post-processing unit comprises:
Selection is less than L/2 power-delay profile assembly and this selected power-delay profile assembly value of storage and the power-delay outline position value out of the ordinary of each power-delay profile;
The selectivity combination is stored power-delay profile value, and each power-delay profile assembly value system of this of the feasible corresponding power-delay set of contours that is stored at identical power-delay outline position out of the ordinary is combined; And
At each power-delay outline position selected door is assessed this combined value, do further signal processing to transmit door approval combined value and positional value out of the ordinary, it is used to determine to have that this power-delay profile assembly out of the ordinary is rely the known array made and the received signals path that is transmitted signal.
35. the method according to claim 34 is characterized in that, this post-processing unit system is configured to select the peak of each power-delay profile, and wherein N＞2 reach＜L/2.
36. method according to claim 35, it is characterized in that, this power-delay profile value system comprises homophase and quadrature is formed, wherein this power-delay profile assembly system that is stored that is used for the door assessment comes the selectivity combination by the combination that links up, and further comprise the big or small approximation of calculating each door approval combined value, by this should the size approximation and each positional value system be used to further signal processing with decision received signals path.
37. this invention according to claim 35 is characterized in that, this power-delay profile value system comprises homophase and quadrature is formed, and wherein this power-delay profile assembly system that is stored that is used for the door assessment comes the selectivity combination by the combination that links up, and further comprises:
Calculate and respectively be stored one of power-delay profile assembly value big or small approximation;
The sizes values of the power-delay profile assembly value of the corresponding combination that linked up of non-coherent combination; And
The contrast door approves that to assess the combined value that links up and link up respectively power-delay outline position value out of the ordinary determines the received signals path with further signal processing.
38. method according to claim 34, it is characterized in that, this power-delay profile assembly value of being handled by this post-processing unit, the coherent cumulative size that is the sequence of signal samples group is approximate, and the door assessment is done by non-coherent combination by the selectivity combination system that wherein is stored power-delay profile assembly value.
39. the method according to claim 34 is characterized in that:
Selected and these components values and each positional value system are stored from one of power-delay profile assembly of power-delay profile first G1 of group restriction number system;
Organize each other when processed in power-delay profile group, be stored from the components values of each corresponding power-delay profile of each power-delay set of contours and the positional value out of the ordinary system that distinctly is placed assembly; And
Then, select one of other assembly restriction number system to be stored from the power-delay profile that does not match from any position of the selected assembly of this power-delay profile of the G1 of this first group.
40. the method according to claim 39 is characterized in that, assembly system is selected from this G1 of first group power-delay profile based on the highest N value of selecting the power-delay profile assembly, and wherein N is less than L/4.
41. the method according to claim 39 is characterized in that, assembly system is selected from power-delay profile first G1 of group by the door approval, and this door system is set, and makes less than the L/4 assembly to be the selected G1 of respectively this first group from the power-delay profile.
42. wireless transmission receiving element (WTRU) that is used for wireless communication system, it can receive wireless signal from other wireless transmission receiving element (WTRU), make that the relative time point of respectively this wireless signal that is received by this wireless transmission receiving element (WTRU) is known, and this wireless signal can pass through in a series of predetermined number J symbols of the time slot transmission of system time frame, SYM (0) defines to SYM (J-1), wherein each symbol cording has pre-determined bit length B, and this wireless transmission receiving element comprises:
One power-delay profile manufacturing cell, system is configured to make the power-delay profile that respectively has L module of a selection number, it has representative and one of mixes with known array and to select the individual coherent accumulation that is received the sample sequence group of number p, and wherein p equals B and is multiplied by clothing selection positive integer I, p=B*I; And
This system of power-delay profile manufacturing cell is configured to the relevant continuous power delayed profile that is received wireless transmission receiving element (WTRU) wireless signal of selectivity manufacturing, make when the N wireless signal is received simultaneously, the power-delay profile can be at making to the wireless signal WS out of the ordinary (0) of received signals the latest to WS (N-1) derived from known time point the earliest, it starts from the first received the earliest wireless signal WS (0), start from symbol SYM (j) simultaneously to time slot with the first wireless signal WS (0) reception time point, and continue respectively to continue received wireless signal WS (n) continuously, n=1 to N-1, after based on accurate delay of the time of the known time point of wireless signal WS (n), begin to have symbol SYM ((j+ (I* (n))) modJ)) about time slot with wireless signal WS (n) reception time point, the power-delay profile of received the latest by this wireless signal WS (N-1) is handled system and is started from one of D chip accumulated delay, it is with respect to the symbol SYM ((j+ (I*N-1)) modJ) of the time slot with first wireless signal reception time point) beginning, make to be first to be received the next power-delay profile of wireless signal manufacturing, it starts from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, and wherein K is less than (the maximum integer of (j+ (I* (N-1))+(D/B)) modJ.
43. wireless transmission receiving element (WTRU) according to claim 42, it is characterized in that, this system of power-delay profile manufacturing cell is configured to make has the value that the sample sequence group links up and accumulates that is received of representing the J symbol, make p=J*B, this power-delay profile manufacturing cell can selectivity make the continuous power delayed profile at being received wireless transmission receiving element wireless signal by this, make when the N wireless signal is received simultaneously, the power-delay profile can be at making to the wireless signal WS out of the ordinary (0) of received signals the latest to WS (N-1) derived from known time point the earliest, it starts from the first received the earliest wireless signal WS (0), start from symbol SYM (J) simultaneously to time slot with the first wireless signal WS (0) reception time point, and continue respectively to continue received wireless signal WS (n) continuously, n=1 to N-1, after accurate delay of the time of the known time point of wireless signal WS (n), begin to have symbol SYM (j) about time slot with wireless signal WS (n) reception time point, the power-delay profile of received the latest by this wireless signal WS (N-1) is handled system and is started from one of D chip accumulated delay, it is with respect to symbol SYM (j) beginning of the time slot with first wireless signal reception time point, make to be first to be received the next power-delay profile of wireless signal manufacturing, it starts from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, and wherein K is the maximum integer less than (j+ (D/B)) modJ.
44. wireless transmission receiving element (WTRU) according to claim 43, it is characterized in that, this wireless transmission receiving element (WTRU) is the whole world action telecommunication system (UMTS) that is configured to the system time groove that is used to have 2560 chips, wherein power-delay profile manufacturing cell system is configured to make the power-delay profile of the wireless signal that is used to be received in a pilot channel, and this pilot channel system formats with 256 of every pilot channel time slots of 10 symbols.
45. the wireless transmission receiving element (WTRU) according to claim 43 is characterized in that, further comprises:
One interpolater is and the coupling of this power-delay profile manufacturing cell, and is configured to increase this component count by interpolation method and makes from the plural P of P to an expection and be expanded the power-delay profile; And
One post-processing unit is expanded the power-delay profile in order to handle this, comprises:
The size approximation apparatus is configured to provide the big or small approximation that is expanded power-delay profile value; And
The door apparatus for evaluating;
This post-processing unit system is configured to transmit big or small approximation and reaches related power delayed profile positional value to the RAKE receiver types device of being approved by this door device.
46. the wireless transmission receiving element (WTRU) according to claim 45 is characterized in that, this wireless transmission receiving element (WTRU) is to be configured to one of to be used as in the whole world action telecommunication system (UMTS) Node B (Node B).
47. the wireless transmission receiving element (WTRU) according to claim 45 is characterized in that, this wireless transmission receiving element (WTRU) is to be configured to one of to be used as in the whole world action telecommunication system (UMTS) user's equipment (UE).
48. the method that the power-delay profile in the may command wireless transmission receiving element is made, it can receive wireless signal from other wireless transmission receiving element (WTRU), make that the relative time point of respectively this wireless signal that is received by this wireless transmission receiving element (WTRU) is known, and this wireless signal can pass through in a series of predetermined number J symbols of the time slot transmission of system time frame, SYM (0) defines to SYM (J-1), wherein each symbol cording has pre-determined bit length B, power-delay profile manufacturing cell respectively has one and selects L module of number, it has representative and one of mixes the individual coherent accumulation that is received the sample sequence group of selection number p with known array, wherein p equals B and is multiplied by clothing and selects positive integer I, p=B*I; And
The relevant continuous power delayed profile that is received wireless transmission receiving element (WTRU) wireless signal of selectivity manufacturing, make when the N wireless signal is received simultaneously, the power-delay profile can be at making to the wireless signal WS out of the ordinary (0) of received signals the latest to WS (N-1) derived from known time point the earliest, it starts from the first received the earliest wireless signal WS (0), start from symbol SYM (j) simultaneously to time slot with the first wireless signal WS (0) reception time point, and continue respectively to continue received wireless signal WS (n) continuously, n=1 to N-1, after based on accurate delay of the time of the known time point of wireless signal WS (n), begin to have symbol SYM ((j+ (I* (n))) modJ)) about time slot with wireless signal WS (n) reception time point, the power-delay profile processing system that is received wireless signal WS (N-1) by this latest starts from one of D chip accumulated delay, it is with respect to the symbol SYM ((j+ (I*N-1)) modJ) of the time slot with first wireless signal reception time point) beginning, make to be first to be received the next power-delay profile of wireless signal manufacturing, it starts from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, and wherein K is less than (the maximum integer of (j+ (I* (N-1))+(D/B)) modJ.
49. this method according to claim 48, it is characterized in that, this power-delay profile cording has the value that the sample sequence group links up and accumulates that is received of representing the J symbol, make p=J*B, wherein make the continuous power delayed profile at being received wireless transmission receiving element wireless signal selectivity, make when the N wireless signal is received simultaneously, the power-delay profile can be at making to the wireless signal WS out of the ordinary (0) of received signals the latest to WS (N-1) derived from known time point the earliest, start from the first received the earliest wireless signal WS (0), start from symbol SYM (J) simultaneously to time slot with the first wireless signal WS (0) reception time point, and continue respectively to continue received wireless signal WS (n) continuously, n=1 to N-1, after accurate delay of the time of the known time point of wireless signal WS (n), begin to have symbol SYM (j) about time slot with wireless signal WS (n) reception time point, the power-delay profile processing system that is received wireless signal WS (N-1) by this latest starts from one of D chip accumulated delay, it is with respect to symbol SYM (j) beginning of the time slot with first wireless signal reception time point, make to be first to be received the next power-delay profile of wireless signal manufacturing, it starts from having the symbol SYM (K) that the first wireless signal WS (0) receives the time slot of time point, and wherein K is the maximum integer less than (j+ (D/B)) modJ.
50. this method according to claim 49, it is characterized in that, this method system is implemented in the whole world action telecommunication system (UMTS) of the system time groove with 2560 chips, it is characterized in that, power-delay profile system is used to be received in the power-delay profile of the wireless signal of a pilot channel by the selectivity manufacturing, this pilot channel system is with 256 of every channel time slots of 10 symbols, and formats.
51. this method according to claim 48 is characterized in that, further comprises:
Increase this component count by interpolation method and be expanded the power-delay profile to expecting that plural P makes from P; And
Handle this and be expanded the power-delay profile, comprise and make the big or small approximation that is expanded power-delay profile value, make big or small approximation and the related power delayed profile positional value system approved by the door device be transferred into a RAKE receiver types device.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45234303P | 2003-03-05 | 2003-03-05 | |
| US60/452,484 | 2003-03-05 | ||
| US60/452,342 | 2003-03-05 | ||
| US60/452,343 | 2003-03-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122660A (en) * | 2013-04-05 | 2015-12-02 | 瑞典爱立信有限公司 | Apparatus and method for jointly selecting the tap values and delays of the fingers for a rake receiver of two carriers |
| CN110611508A (en) * | 2019-09-02 | 2019-12-24 | 中国石油天然气集团有限公司 | Combined code-based coding and decoding method for petroleum drilling |
| JP2021501502A (en) * | 2017-10-25 | 2021-01-14 | ノースロップ グラマン システムズ コーポレイション | Symbolic quality estimation for adaptive beamforming |
-
2004
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122660A (en) * | 2013-04-05 | 2015-12-02 | 瑞典爱立信有限公司 | Apparatus and method for jointly selecting the tap values and delays of the fingers for a rake receiver of two carriers |
| CN105122660B (en) * | 2013-04-05 | 2017-08-18 | 瑞典爱立信有限公司 | For Combination selection for the values of tap of many fingers of dual carrier RAKE receiver and the apparatus and method of delay |
| JP2021501502A (en) * | 2017-10-25 | 2021-01-14 | ノースロップ グラマン システムズ コーポレイション | Symbolic quality estimation for adaptive beamforming |
| JP7194319B2 (en) | 2017-10-25 | 2022-12-22 | ノースロップ グラマン システムズ コーポレーション | Symbol Quality Estimation for Adaptive Beamforming |
| CN110611508A (en) * | 2019-09-02 | 2019-12-24 | 中国石油天然气集团有限公司 | Combined code-based coding and decoding method for petroleum drilling |
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