CN101217817B - Channel searching device, method and system - Google Patents
Channel searching device, method and system Download PDFInfo
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- CN101217817B CN101217817B CN2008100558262A CN200810055826A CN101217817B CN 101217817 B CN101217817 B CN 101217817B CN 2008100558262 A CN2008100558262 A CN 2008100558262A CN 200810055826 A CN200810055826 A CN 200810055826A CN 101217817 B CN101217817 B CN 101217817B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008878 coupling Effects 0.000 claims description 30
- 238000010168 coupling process Methods 0.000 claims description 30
- 238000005859 coupling reaction Methods 0.000 claims description 30
- 230000002596 correlated effect Effects 0.000 claims description 14
- 230000013011 mating Effects 0.000 claims description 6
- 230000006854 communication Effects 0.000 description 7
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a channel searching device, comprising a configuration unit used for configuring the serial number of an input condition code into a condition code sequence, a code generation unit used for obtaining the code sequence by multiplying the condition code sequence or channel code with a scramble, and a disposal unit used for obtaining a path information according to the code sequence and the input signal. The invention also relates to a channel searching method, comprising that the serial number of the input condition code is configured into the condition code sequence; the code sequence is obtained by multiplying the condition sequence or the channel code with the scramble; the path information is obtained according to the code sequence and the input signal. The invention also relates to a channel searching system. The device, the method and the system of the invention effectively reduce system resource consumption and system power dissipation, improve the smartness, reliability and maintainability of the system, and greatly reduce cost.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of channel searching device, method and system.
Background technology
Wideband Code Division Multiple Access (WCDMA) inserts (Wideband Code Division Multiple Access, WCDMA) in the system, user's a communication process can separated into two parts, first is an access procedure: when a user need insert, user terminal is Physical Random Access Channel (Physical Random Access Channel by up public access channel at first, PRACH) leading part (preamble) sends to the base station, the base station confirms by the search to preamble whether this user can insert; After confirming that the user inserts, the second portion that enters communication process is the service communication process: the user is by ascending physical signal dedicated channel (Dedicated Physical Channel, DPCH), voice or data service are sent to the base station, the base station is by the search for dedicated channel DPCH, obtain this user's footpath information, and be used for the follow-up demodulation of this user, finally obtain the real information that the user sends.
This shows that the search performance of access channel preamble part directly has influence on user's access probability, promptly the user whether can access network in, the search performance of dedicated channel then directly has influence on the demodulation performance of dedicated channel, i.e. customer service quality.Therefore, public access channel preamble partly search for the dedicated channel search performance be very important index in the WCDMA system, thereby searcher is the vitals of base station system.
At present, it is different fully with the dedicated channel formation that the channel of access channel preamble part constitutes, access channel prefix code sequence is made of prefix scrambler and prefix condition code (signature), wherein, the prefix feature code sequence is that length is 256 compositions of HADAMARD sequence repetition of 16, so in the feature code sequence, it is identical that sequence number differs 16 code word.
The inventor finds that the searcher that above-mentioned access channel and dedicated channel are used separately is independently in realizing process of the present invention, can't be multiplexing, and cause resource consumption very big, the cost height, power consumption is big; Simultaneously, the reliability of system, flexibility and maintainable relatively poor.
Summary of the invention
The embodiment of the invention provides a kind of channel searching device, method and system, can a multiplexing searcher with the search that realizes access channel and dedicated channel, to reduce system resources consumption and power consumption, save cost, improve reliability, flexibility and the maintainability of system.
The embodiment of the invention provides a kind of channel searching device, and this device comprises:
Dispensing unit is used for the condition code sequence number of input is configured to feature code sequence;
The sign indicating number generating unit is used for described feature code sequence or channel code and scrambler are multiplied each other, and obtains a yard sequence;
Processing unit is used for obtaining footpath information according to described sign indicating number sequence and input signal;
Described processing unit comprises:
The coupling correlation unit is used for mating relevant with input signal described sign indicating number sequence;
Energy calculation unit is used for carrying out energy according to described coupling correlated results and calculates;
The multi-path judging unit is used for carrying out multi-path judging according to described energy result of calculation, obtains footpath information.
The embodiment of the invention provides a kind of channel search method, and this method comprises:
The condition code sequence number of input is configured to feature code sequence;
Multiply each other according to described feature code sequence or channel code and scrambler and to obtain a yard sequence;
Obtain footpath information according to described sign indicating number sequence and input signal;
Describedly obtain directly according to described sign indicating number sequence and input signal that information specifically comprises:
Mate relevant according to sign indicating number sequence and input signal;
Carrying out energy according to the coupling correlated results calculates;
Carry out multi-path judging according to energy result of calculation, obtain footpath information.
The embodiment of the invention provides a kind of channel search system, comprises terminal, base station and is arranged on channel searching device on the base station, and wherein, channel searching device comprises:
Dispensing unit is used for the condition code sequence number that comprises end message of input is configured to feature code sequence;
The sign indicating number generating unit is used for described feature code sequence or channel code and the scrambler that comprises end message are multiplied each other, and obtains a yard sequence;
Processing unit is used for obtaining footpath information according to described sign indicating number sequence and input signal;
Described processing unit specifically comprises:
The coupling correlation unit is used for mating relevant with input signal described sign indicating number sequence;
Energy calculation unit is used for carrying out energy according to described coupling correlated results and calculates;
The multi-path judging unit is used for carrying out multi-path judging according to described energy result of calculation, obtains footpath information.
The embodiment of the invention has reduced resource consumption by realizing the multiplexing searcher of search of access channel and dedicated channel, has reduced system power dissipation, provides cost savings, and has improved reliability, flexibility and the maintainability of system.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the structural representation of channel searching device embodiment of the present invention;
Fig. 2 is the flow chart of channel search method embodiment of the present invention;
Fig. 3 is the structural representation of channel search system embodiment of the present invention.
Embodiment
As shown in Figure 1, be the structural representation of channel searching device embodiment of the present invention, this device specifically comprises: dispensing unit 21 is used for the condition code sequence number of input is configured to feature code sequence; Sign indicating number generating unit 22 is used for above-mentioned feature code sequence or channel code and scrambler are multiplied each other, and obtains a yard sequence; Processing unit 23 is used for obtaining footpath information according to above-mentioned sign indicating number sequence and input signal.
Wherein, processing unit 23 comprises again: coupling correlation unit 231 is used for mating relevant with input signal above-mentioned sign indicating number sequence; Energy calculation unit 232 is used for carrying out energy according to above-mentioned coupling correlated results and calculates; Multi-path judging unit 233 is used for carrying out multi-path judging according to above-mentioned energy result of calculation, obtains footpath information.
Wherein, above-mentioned condition code sequence number has 16, and is as shown in table 1, and an above-mentioned condition code sequence number can be fixed value, for example a signature3; Also can choose different values as required.
[0029]Table 1
In access procedure, when a condition code sequence number of input is a fixed value, signature0 for example, because the feature code sequence of signature0 is complete 1 sequence, dispensing unit is helped 1 sequence with the signature0 configuration, and complete 1 sequence after will disposing is sent to a yard generating unit, the sign indicating number generating unit multiplies each other complete 1 sequence and scrambler, still obtain scrambler, and above-mentioned scrambler sent to the coupling correlation unit, the coupling correlation unit mates relevant with this scrambler input signal, the result is sent to energy calculation unit, energy calculation unit is carried out energy calculating according to the coupling correlated results, and result of calculation is sent to the multi-path judging unit, and the multi-path judging unit carries out multi-path judging according to result of calculation.
In access procedure, when a condition code sequence number of input is a changing value, then can send to dispensing unit by the condition code sequence number that will need to use, the feature code sequence that will obtain after concrete feature code sequence also will dispose according to above-mentioned condition code sequence number is sent to a yard generating unit, the sign indicating number generating unit multiplies each other concrete feature code sequence and scrambler, obtain concrete sign indicating number sequence and send to the coupling correlation unit, the coupling correlation unit mates relevant with concrete sign indicating number sequence input signal and the result is sent to energy calculation unit, energy calculation unit is carried out energy calculating and result of calculation is sent to the multi-path judging unit according to the coupling correlated results, and the multi-path judging unit carries out multi-path judging according to result of calculation again.
In the service communication process, the sign indicating number generating unit multiplies each other channel code and scrambler, obtain yard sequence and give the coupling correlation unit, the coupling correlation unit mates relevant with this yard sequence input signal and the result is sent to energy calculation unit, energy calculation unit is carried out energy according to the coupling correlated results and is calculated, and result of calculation sent to the multi-path judging unit, the multi-path judging unit carries out multi-path judging according to result of calculation, obtains footpath information.
This shows that the searcher of above-mentioned access channel and dedicated channel can be multiplexing, thereby reduced resource consumption and system power dissipation preferably; And, because the saving greatly of resource makes the power consumption of whole device significantly reduce, be the extra device that increases of heat radiation thereby improved the reliability of installing on the one hand greatly, reduced system, make this device maintainability by force.
Said process is the process that channel searching device is searched for a user, when channel searching device is searched for a plurality of users, dispensing unit can configure a plurality of fixing signature values, thereby obtains a yard sequence, and subsequent operation is identical with above-mentioned operation.
Said apparatus has reduced consumption and system power dissipation to resource preferably, has improved flexibility, the reliability and maintainability of system, greatly reduces cost.
As shown in Figure 2, be the flow chart of channel search method embodiment of the present invention, this method specifically comprises:
Be configured to characteristic of correspondence sign indicating number sequence according to the one or more condition code sequence numbers in 16 condition code sequence numbers of input, and the condition code sequence number of input can be fixing one or more values, also can be the one or more values that change;
In access procedure, multiplying each other according to feature code sequence and scrambler obtains yard sequence and sends, and in the service communication process, multiplying each other according to channel code and scrambler obtains yard sequence and send;
This operation specifically comprises: mate relevant according to sign indicating number sequence and input signal; Carrying out energy according to the coupling correlated results calculates; Carry out multi-path judging according to energy result of calculation, obtain footpath information.
Said method has reduced consumption and system power dissipation to resource preferably, has improved flexibility, the reliability and maintainability of system, greatly reduces cost.
As shown in Figure 3, structural representation for channel search system embodiment of the present invention, this system specifically comprises terminal 1, base station 3 and is arranged on channel searching device 2 on the base station 3, wherein channel searching device 2 comprises: dispensing unit 21 is used for the condition code sequence number that comprises end message of input is configured to feature code sequence; Sign indicating number generating unit 22 is used for described feature code sequence or channel code and the scrambler that comprises end message are multiplied each other, and obtains a yard sequence; Processing unit 23 is used for obtaining footpath information according to described sign indicating number sequence and input signal.
Wherein, above-mentioned processing unit comprises again: the coupling correlation unit is used for mating relevant with input signal described sign indicating number sequence; Energy calculation unit is used for carrying out energy according to described coupling correlated results and calculates; The multi-path judging unit is used for carrying out multi-path judging according to described energy result of calculation, obtains footpath information.
Above-mentioned condition code sequence number has 16, and a condition code sequence number that wherein inputs to dispensing unit can be fixed value, for example a signature0; Also can choose different values as required.
In access procedure, when the condition code sequence number that comprises each end message of input is a fixed value, for example can be signature0, signature1 etc., dispensing unit is configured to corresponding feature code sequence with the condition code sequence number of input, and the feature code sequence after will disposing is sent to a yard generating unit, the sign indicating number generating unit multiplies each other corresponding feature code sequence and the scrambler that comprises end message, and the result after will multiplying each other sends to the coupling correlation unit, the coupling correlation unit mates relevant with this scrambler input signal, the result is sent to energy calculation unit, energy calculation unit is carried out energy according to the coupling correlated results and is calculated, result of calculation is sent to the multi-path judging unit, the multi-path judging unit carries out multi-path judging according to result of calculation, obtain the footpath information of each terminal, to determine whether above-mentioned terminal can insert this base station.
In addition, in access procedure, when the condition code sequence number of importing that comprises end message can be a changing value, then can dispose to dispensing unit by the condition code sequence number that in use directly will need to use, for example signature3 can be replaced signature1 be input in the dispensing unit, the feature code sequence that will obtain after feature code sequence also will dispose is sent to a yard generating unit, and subsequent operation is identical with said process.
In the service communication process, the sign indicating number generating unit multiplies each other channel code and the scrambler that comprises end message, obtain yard sequence and give the coupling correlation unit, the coupling correlation unit mates relevant with this yard sequence input signal and the result is sent to energy calculation unit, energy calculation unit is carried out energy according to the coupling correlated results and is calculated, and result of calculation sent to the multi-path judging unit, the multi-path judging unit carries out multi-path judging according to result of calculation, obtain the footpath information of terminal, to obtain the real information that terminal sends.
Said system has reduced system resources consumption and system power dissipation preferably, has improved flexibility, the reliability and maintainability of system, greatly reduces cost.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. channel searching device is characterized in that comprising:
Dispensing unit is used for the condition code sequence number of input is configured to feature code sequence;
The sign indicating number generating unit is used for described feature code sequence or channel code and scrambler are multiplied each other, and obtains a yard sequence;
Processing unit is used for obtaining footpath information according to described sign indicating number sequence and input signal;
Described processing unit comprises:
The coupling correlation unit is used for mating relevant with input signal described sign indicating number sequence;
Energy calculation unit is used for carrying out energy according to described coupling correlated results and calculates;
The multi-path judging unit is used for carrying out multi-path judging according to described energy result of calculation, obtains footpath information.
2. channel searching device according to claim 1 is characterized in that the condition code sequence number that inputs to dispensing unit has 16.
3. channel searching device according to claim 1, the condition code sequence number that it is characterized in that described input is fixed value or changing value.
4. channel search method is characterized in that comprising:
The condition code sequence number of input is configured to feature code sequence;
Multiply each other according to described feature code sequence or channel code and scrambler and to obtain a yard sequence;
Obtain footpath information according to described sign indicating number sequence and input signal;
Describedly obtain directly according to described sign indicating number sequence and input signal that information specifically comprises:
Mate relevant according to sign indicating number sequence and input signal;
Carrying out energy according to the coupling correlated results calculates;
Carry out multi-path judging according to energy result of calculation, obtain footpath information.
5. channel search method according to claim 4 is characterized in that described condition code sequence number with input is configured to feature code sequence and is specially: be configured to feature code sequence according to the one or more condition code sequence numbers in 16 condition code sequence numbers of input.
6. channel search method according to claim 5 is characterized in that describedly being configured to feature code sequence and being specially according to the one or more condition code sequence numbers in 16 condition code sequence numbers of input: be configured to feature code sequence according to the condition code sequence numbers one or more fixing or that change in 16 condition code sequence numbers of input.
7. channel search system comprises terminal, base station and is arranged on channel searching device on the described base station, it is characterized in that described channel searching device comprises:
Dispensing unit is used for the condition code sequence number that comprises end message of input is configured to feature code sequence;
The sign indicating number generating unit is used for described feature code sequence or channel code and the scrambler that comprises end message are multiplied each other, and obtains a yard sequence;
Processing unit is used for obtaining footpath information according to described sign indicating number sequence and input signal;
Described processing unit specifically comprises:
The coupling correlation unit is used for mating relevant with input signal described sign indicating number sequence;
Energy calculation unit is used for carrying out energy according to described coupling correlated results and calculates;
The multi-path judging unit is used for carrying out multi-path judging according to described energy result of calculation, obtains footpath information.
8. channel search according to claim 7 system is characterized in that the condition code sequence number that inputs to dispensing unit has 16.
9. channel search according to claim 7 system is characterized in that the condition code sequence number that comprises end message of described input is fixed value or changing value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100558262A CN101217817B (en) | 2008-01-09 | 2008-01-09 | Channel searching device, method and system |
| PCT/CN2009/070023 WO2009092298A1 (en) | 2008-01-09 | 2009-01-05 | Channel searching device, method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100558262A CN101217817B (en) | 2008-01-09 | 2008-01-09 | Channel searching device, method and system |
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| CN101217817A CN101217817A (en) | 2008-07-09 |
| CN101217817B true CN101217817B (en) | 2010-09-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101217817B (en) * | 2008-01-09 | 2010-09-15 | 华为技术有限公司 | Channel searching device, method and system |
| CN111273962B (en) * | 2020-02-14 | 2022-02-18 | 腾讯科技（深圳）有限公司 | Configuration management method, device, computer readable storage medium and computer equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301436A (en) * | 1998-05-15 | 2001-06-27 | 艾利森电话股份有限公司 | Random access in a mobile telecommunications system |
| WO2002029999A1 (en) * | 2000-10-05 | 2002-04-11 | Nec Corporation | Despreading circuit |
| CN1373576A (en) * | 2002-03-27 | 2002-10-09 | 信息产业部电信传输研究所 | Fast capture method and device for reverse random access channel |
| CN1444807A (en) * | 2000-10-06 | 2003-09-24 | 韩唯逻辑公司 | Preamble searching apparatus and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217817B (en) * | 2008-01-09 | 2010-09-15 | 华为技术有限公司 | Channel searching device, method and system |
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- 2008-01-09 CN CN2008100558262A patent/CN101217817B/en active Active
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- 2009-01-05 WO PCT/CN2009/070023 patent/WO2009092298A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301436A (en) * | 1998-05-15 | 2001-06-27 | 艾利森电话股份有限公司 | Random access in a mobile telecommunications system |
| WO2002029999A1 (en) * | 2000-10-05 | 2002-04-11 | Nec Corporation | Despreading circuit |
| CN1444807A (en) * | 2000-10-06 | 2003-09-24 | 韩唯逻辑公司 | Preamble searching apparatus and method |
| CN1373576A (en) * | 2002-03-27 | 2002-10-09 | 信息产业部电信传输研究所 | Fast capture method and device for reverse random access channel |
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| WO2009092298A1 (en) | 2009-07-30 |
| CN101217817A (en) | 2008-07-09 |
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Effective date of registration: 20210425 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |