CN101998637B - Method and device for configuring precursor - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002243 precursor Substances 0.000 title abstract 19
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000008685 targeting Effects 0.000 claims description 17
- 230000036963 noncompetitive effect Effects 0.000 abstract 8
- 230000002860 competitive effect Effects 0.000 abstract 5
- 230000000875 corresponding effect Effects 0.000 description 45
- 125000004122 cyclic group Chemical group 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 230000002596 correlated effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The embodiment of the invention relates to a method and a device for configuring a precursor. The method comprises the following steps of: acquiring identification information of a precursor which corresponds to a cell, wherein the precursor which corresponds to the cell comprises a competitive precursor and a noncompetitive precursor, and the noncompetitive precursor comprises a useful noncompetitive precursor and a useless noncompetitive precursor; determining corresponding competitive precursor and useful noncompetitive precursor according to the identification information; acquiring reference root sequence information for generating the competitive precursor and the useful noncompetitive precursor; and generating a reference root sequence according to the reference root sequence information. In the embodiment of the invention, only the reference root sequence information for generating the competitive precursor and the useful noncompetitive precursor can be acquired so as to generate the reference root sequence which is only relevant to the competitive precursor and the useful noncompetitive precursor, so that when a precursor signal is received, the detection of the root sequences of all precursors which support the cell is avoided, the resource is saved and the detection time delay is reduced; therefore, the access time delay and switching time delay of a terminal are reduced.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of leading collocation method and device.
Background technology
In evolved packet system (Evolved Packet System is called for short EPS) network, be the part that terminal equipment (User Equipment is called for short UE) accesses community or carries out community switching carrying out initial non-synchronized random access procedure.Non-synchronized random access signal is normally carried in a random burst, and the content of this random burst is a Physical Random Access Channel (Physical Random Access CHannel) leading (Preamble).The leading time-domain signal that takies certain bandwidth for using specific root sequence to generate by the sequence of cyclic shift of PRACH, the root sequence number that different districts is used can be not identical, and each community need to support that 64 PRACH are leading.By carrying out correlation detection to generating leading root sequence, can adjust the upper row clock of UE, obtain the uplink synchronous with system.
Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems: in existing non-synchronized random access procedure, when base station, to receive a PRACH leading, the whole leading root sequence of Xia community, this base station being supported is carried out coherent detection, cause the waste of resource, increase detection time delay, thereby increased access delay and the handover delay of UE.
Summary of the invention
The embodiment of the present invention provides a kind of leading collocation method and device.
The embodiment of the present invention provides a kind of leading collocation method, comprising:
Obtain leading identification information corresponding to community, corresponding leading in described community comprises that competition is leading and non-competing leading, described non-competing leading comprise useful non-competing leading and useless non-competing leading;
Determine that according to described identification information corresponding competition is leading and useful non-competing leading;
Obtain and generate the leading and described useful non-competing leading reference root sequence information of described competition;
According to described with reference to root sequence information generating reference root sequence;
Described method also comprises: according to the switching frequency of the number of the terminal in community and described terminal by corresponding described community leading be set to compete leading, useful non-competing leading and useless non-competing leading;
Describedly be leadingly set to compete leading, useful non-competing leading and useless non-competing leading comprising by corresponding described community according to the switching frequency of the number of the terminal in community and described terminal:
Described community corresponding leading according to the switching frequency of the number of the terminal in community and described terminal arrange continuously competition leading and non-competing leading, and be provided with continuously with non-competing leading and useless non-competing leading, described identification information comprises described useful non-competing leading number, described useful non-competing leading initial logic index, or
According to the switching frequency of the number of the terminal in community and described terminal, described competition is set continuously leading and described non-competing leading, and discontinuous arrange described useful non-competing leading and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark, or
According to the switching frequency of the number of the terminal in community and described terminal, discontinuous that described competition is set is leading and described non-competing leading, and discontinuously arrange described useful non-competing leadingly and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark.
The embodiment of the present invention also provides a kind of leading inking device, comprising:
Identification module, for obtaining leading identification information corresponding to community, corresponding leading in described community comprises that competition is leading and non-competing leading, described non-competing leading comprise useful non-competing leading and useless non-competing leading;
Determination module, determines that for the identification information obtaining according to described identification module corresponding competition is leading and useful non-competing leading;
Acquisition module, generates the leading and useful non-competing leading reference root sequence information of the definite competition of described determination module for obtaining;
Processing module, for the reference root sequence information generating reference root sequence of obtaining according to described acquisition module;
Described device also comprises: module is set, for according to the switching frequency of the number of the terminal in community and described terminal by corresponding described community leading be set to compete leading, useful non-competing leading and useless non-competing leading;
The described module that arranges, it is leading and non-competing leading specifically for competition is set continuously according to the switching frequency of the number of the terminal in community and described terminal, and be provided with continuously with non-competing leading and useless non-competing leading, described identification information comprises described useful non-competing leading number, described useful non-competing leading initial logic index, or
According to the switching frequency of the number of the terminal in community and described terminal, described competition is set continuously leading and described non-competing leading, and discontinuous arrange described useful non-competing leading and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark, or
According to the switching frequency of the number of the terminal in community and described terminal, discontinuous that described competition is set is leading and described non-competing leading, and discontinuously arrange described useful non-competing leadingly and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark.
The embodiment of the present invention provides again a kind of base station, comprises above-mentioned leading inking device.
As shown from the above technical solution, the embodiment of the present invention by by corresponding community leading be set to compete leading, useful non-competing leading and useless non-competing leading, the physical layer of base station can determine that competition is leading and useful non-competing leading according to leading identification information corresponding to the community obtaining, only obtain and generate the leading and useful non-competing leading reference root sequence information of competition, generate useless non-competing leading reference root sequence information and no longer obtain, thereby generate be and the leading and useful non-competing leading relevant reference root sequence of competition, avoid in the time receiving a targeting signal, the whole leading root sequence that Dui Gai community is supported detects, save resource, reduce detection time delay, thereby access delay and the handover delay of terminal are reduced.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the leading collocation method that Fig. 1 provides for the embodiment of the present invention one;
The schematic flow sheet of the leading collocation method that Fig. 2 provides for the embodiment of the present invention two;
The structural representation of the leading inking device that Fig. 3 provides for the embodiment of the present invention three.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making whole other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The schematic flow sheet of the leading collocation method that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, the leading collocation method of the present embodiment can comprise the following steps:
In the present embodiment, switch because non-competing access lead is mainly used in UE community, and which leading can appointment by base station UE uses.Therefore, can be by leading whole PRACH corresponding community three classes that are set to: compete leading, useful non-competing leading, useless non-competing leading.To be switched terminal distribution is non-competing only non-competingly to be chosen leading from useful when leading giving in base station.
In the present embodiment, agreement high level (layer 2 or layer 3) by base station by corresponding community leading be set to compete leading, useful non-competing leading and useless non-competing leading, and above-mentioned various leading identification information is set, the physical layer of base station can determine that competition is leading and useful non-competing leading according to leading identification information corresponding to the community obtaining, selection is obtained and is generated the leading and useful non-competing leading reference root sequence information of competition, generate useless non-competing leading reference root sequence information and can obtain, thereby generate be and the leading and useful non-competing leading relevant reference root sequence of competition, while having realized the targeting signal that the physical layer of base station sends at the UE receiving in Yi Gegai community, the leading root sequence of part that Zhi Duigai community is supported detects, rather than the whole leading root sequence that Dui Gai community is supported detects, save Check processing resource, reduce detection time delay, thereby access delay and the handover delay of terminal are reduced.
The sequence of the leading use of PRACH in the embodiment of the present invention is ZC(Zadoff-Chu) sequence, the sequence obtaining after cyclic shift due to ZC sequence remains a ZC sequence.Therefore, 64 leading can acquisitions by cyclic shift by several ZC root sequences corresponding to each community.Different districts radius, friction speed scene, the number difference of the ZC root sequence needing.In general, radius of society is larger, and under High-speed Circumstance (High Speed Scene), the number of the ZC root sequence needing can be more, and in situation, it is leading that each community needs 64 ZC root sequences to carry out 64 of corresponding generations at most.
The schematic flow sheet of the leading collocation method that Fig. 2 provides for the embodiment of the present invention two, as shown in Figure 2, the leading collocation method of the present embodiment can comprise the following steps:
The physical layer of step 201, base station is obtained leading identification information corresponding to channel parameter information and community of PRACH, corresponding leading in above-mentioned community comprises that competition is leading and non-competing leading, non-competing leading comprise useful non-competing leading and useless non-competing leading.
Channel parameter information wherein can comprise the parameters such as number Ncs, channel configuration (PRACH Configuration), the initial logic index of root sequence, the speed scene (high speed community or low speed community) of cyclic shift identify, the frequency domain position information of channel.
Before this step, the high level of base station, except the channel parameter information of PRACH need to be set, also needs to be set to compete leading, useful non-competing leading and useless non-competing leading according to corresponding whole leading (64 leading) in parameter Jiang Gai community such as the switching frequencies of the number of the UE in community and UE.Concrete leading method to set up can be following three kinds of modes:
Mode one:
Competition is set continuously leading and non-competing leading, and is provided with continuously with non-competing leading and useless non-competing leading, leading identification information can include with non-competing leading number, useful non-competing leading initial logic index;
Mode two:
Competition is set continuously leading and non-competing leading, and discontinuous being provided with non-competing leading and useless non-competing leading, leading identification information can comprise mark, useful non-competing leading mark and the useless non-competing leading mark that competition is leading.
Mode three:
It is discontinuous that competition is set is leading and non-competing leading, and discontinuous being provided with non-competing leading and useless non-competing leading, and leading identification information can comprise and competes leading mark, useful non-competing leading mark and useless non-competing leading mark.
In aforesaid way one, due to competition leading and non-competing leading be all continuous dispensing, competing leading and non-competing leading logic index is continuous, for example: can logic of propositions call number to be 0-n leading leading for competition, what logic call number was n+1-63 is leading for non-competing leading.By non-competing leading be divided into useful non-competing leading and useless non-competing when leading, adopt too the mode of continuous dispensing, and fixing will useful non-competing leading being placed on before, 64 leading continuous dispensing are leading, useful non-competing leading and useless non-competing leading for competing.Like this, the high level of base station can only be handed down to physical layer by useful non-competing leading number, useful non-competing leading initial logic index with the channel parameter information of PRACH.
In aforesaid way two and mode three, due to useful non-competing leading and useless non-competing leading can discontinuously distribution, be that useful non-competing leading and useless non-competing leading logic index is discontinuous, for example: can be by the mode of bit diagram (bitmap) to above-mentioned leading mark, compete leading mark and useful non-competing leading mark and can detect mark for the needs that represent to detect, be set to 1(0), useless non-competing leading mark can not need the detection that do not need detecting to identify for representing, is set to 0(1).Can be by the data of 64 bit lengths with 64 leading middle leading marks that need the leading of detection and do not need detection in the mode Dui Zhe community of bit diagram, as follows can being expressed as:
Or can also be expressed as:
Bit can be set to 0 expression needs to detect, and being set to 1 expression does not need to detect; Or bit 1 is set to and needs to detect, being set to 0 expression does not need to detect.
In the present embodiment, base station is set to compete leading according to corresponding whole leading (64 leading) in parameter Jiang Gai community such as the switching frequencies of the number of the UE in community and UE, useful non-competing leading and uselessly non-competingly leadingly can adopt following principle: for example, in the situation that community specification (radius of society and bandwidth) is constant, meeting under certain user's collision probability condition, access number of times (switching frequency of the UE) impact that competition is leading and non-competing leading number is subject to community user number (being the number of UE) and need to supports each second that community needs, and in the time that number of users increases, the access number of times that need to support each second also can increase, the leading number of corresponding needs also can increase.Suppose that community user number is at 3000 o'clock, use contention access number of times and the non-competing access number of times supported of needing per second is respectively 36 times/second and 29 times/second, and useful non-competing leading number leading in requisition for competition are respectively to 13 and 4, and correspondence can have 64-13-4=47 leading free time to become useless non-competing leading; In the time that community user number drops to 1000, corresponding can the reduction of access number of times that needs support per second, here for simplicity, can only consider that contention access number of times reduces, and useful non-competing access number of times still remains unchanged, the leading number of competition now needing also 1/3 is 5 when being 3000 users, and now useless non-competing leading number has reached 64-5-4=55.According to leading, the useful non-competing leading and useless non-competing leading number of the competition of determining, utilize above-mentioned any one mode Jiang Gai community corresponding whole leading (64 leading) to be set to compete leading, useful non-competing leading and useless non-competing leading; To it is pointed out that example above just provides in order helping to understand, not to be used for protection scope of the present invention to limit, those skilled in the art also carry out the setting of alternate manner according to the switching frequency of the number of the UE in community and UE.
The physical layer of step 202, base station determines that according to above-mentioned identification information corresponding competition is leading and useful non-competing leading.
In this step, physical layer can determine according to leading identification information number and initial logic index, useful non-competing leading number and the initial logic index thereof that competition is leading, or can determine according to leading identification information which is which competes leading is useful non-competing leading with;
The physical layer of step 203, base station is obtained and is generated the leading and useful non-competing leading reference root sequence information of competition according to the channel parameter information of obtained PRACH, and this comprises the number with reference to root sequence with reference to root sequence information.
In this step, physical layer calculates according to certain algorithm according to obtained channel parameter and competes leading and useful non-competing leading corresponding reference ZC root sequence information, and this can comprise the parameter information such as number, each position, length and number with reference to search window corresponding to number, each cyclically shifted sequences of ZC root sequence cocycle shift sequence with reference to ZC root sequence with reference to ZC root sequence information.
Wherein be less than or equal to reference to the number N ' of ZC root sequence the number N that generates whole leading ZC root sequence corresponding to this community;
The physical layer of step 204, base station generates with reference to the initial logic index of the root sequence in the number of root sequence and the channel parameter information of PRACH the reference root sequence that physical layer need to detect according to above-mentioned.
In this step, the N ' that the initial logic index generation of the root sequence physical layer in the channel parameter information of the number of the reference ZC root sequence that physical layer is obtained according to step 202 and high-rise configuration need to detect is individual with reference to ZC root sequence, and preserves;
The physical layer of step 205, base station receives the targeting signal that the UE in this community sends;
The physical layer of step 206, base station is carried out coherent detection by above-mentioned with reference to root sequence and received targeting signal, determines and generates the leading sequence comprising in this targeting signal.
In this step, the physical layer of base station is carried out time domain coherent detection with the local N ' storing is individual with reference to ZC root sequence by the PRACH targeting signal receiving successively, utilize and detect the correlated series obtaining, in search window corresponding to the each cyclically shifted sequences with reference in ZC root sequence information, carry out peak value searching, detect to complete PRACH.In the time that correlation energy maximum exceedes threshold value, determine that the cyclically shifted sequences in the reference ZC root sequence that this search window is corresponding is the leading sequence comprising in this targeting signal of generation; In the time that correlation energy maximum does not exceed threshold value, determine cyclically shifted sequences in reference ZC root sequence corresponding to this search window be not generate the leading sequence comprising in this targeting signal or determine in this targeting signal, do not include leading.
The number N ' of the reference ZC root sequence in the present embodiment is less than the number N that generates whole leading ZC root sequence corresponding to this community, while having realized the targeting signal that the physical layer of base station sends at the UE receiving in Yi Gegai community, the leading root sequence (N ' individual with reference to ZC root sequence) of part that Zhi Duigai community is supported detects, rather than the whole leading root sequence that Dui Gai community is supported detects, save Check processing resource, reduce detection time delay, thereby reduced access delay and the handover delay of terminal.
The embodiment of the present invention has reduced base station physical layer and has detected the consumption of resource, thereby reduces the detection time delay of physical layer.In the situation that cell terminal number of users is less, 64 leading corresponding 64 the root sequences in Yi Ge community (High-speed Circumstance/low speed scene), if can by wherein 10 leading be assigned as useless non-competing leading, correspondingly, can detect less 10 root sequences, the detection time delay of corresponding physical layer can reduce by 15% left and right.Under Frequency Division Duplexing (FDD) (Frequency Division Duplex is called for short FDD) pattern, in each subframe, can only there is at most a PRACH, therefore, under aforementioned supposed situation, the detection time delay of physical layer can reduce by 15% left and right; At time division duplex (Time Division Duplex, being called for short TDD) under pattern, can there are at most 6 PRACH in each subframe, and each PRACH supports that identical PRACH is leading, therefore under aforementioned supposed situation, each PRACH can reduce by 15% detection time delay.The PRACH that the present embodiment has been realized physical layer detects the minimizing of time delay, replys (Response) message, thereby can reduce access delay and the handover delay of terminal thereby make high level to send RACH to UE in advance.
The structural representation of the leading inking device that Fig. 3 provides for the embodiment of the present invention three, as shown in Figure 3, the leading inking device of the present embodiment can comprise identification module 31, determination module 32, acquisition module 33 and processing module 34.Wherein, identification module 31 is for obtaining leading identification information corresponding to community, and corresponding leading in this community can comprise that competition is leading and non-competing leading, this non-competing leading can including with non-competing leading and useless non-competing leading; Determination module 32 determines that for the above-mentioned identification information obtaining according to identification module 31 corresponding competition is leading and useful non-competing leading; Acquisition module 33 generates the leading and useful non-competing leading reference root sequence information of determination module 32 determined competition for obtaining; The reference root sequence information generating reference root sequence of processing module 34 for obtaining according to acquisition module 33.
Within the leading inking device of the present embodiment can be positioned at base station, switch because non-competing access lead is mainly used in UE community, and which leading can appointment by the high level of base station UE uses.Therefore, the high level of base station can be by leading whole PRACH corresponding community three classes that are set to: compete leading, useful non-competing leading, useless non-competing leading.To be switched terminal distribution is non-competing only need to non-competingly be chosen leading from useful when leading giving in base station.The high level of base station, except the channel parameter information of PRACH need to be set, also needs to be set to compete leading, useful non-competing leading and useless non-competing leading according to corresponding whole leading (64 leading) in parameter Jiang Gai community such as the switching frequencies of the number of the UE in community and UE.Identification module can obtain from the upper strata of base station leading identification information corresponding to channel parameter information and community of PRACH.
Further, the leading inking device of the present embodiment further can also comprise module (not shown) is set, for according to the switching frequency of the number of the UE in community and this UE by corresponding above-mentioned community leading be set to compete leading, useful non-competing leading and useless non-competing leading, and above-mentioned various leading identification information is set, the above-mentioned identification information that determination module 32 can obtain according to identification module 31 determines that corresponding competition is leading and useful non-competing leading, 33 of acquisition modules obtain and generate the leading and useful non-competing leading reference root sequence information of competition, generate useless non-competing leading reference root sequence information and no longer obtain, thereby processing module 34 can be generated just and the leading and useful non-competing leading relevant reference root sequence of competition.
Further, the leading inking device of the present embodiment further can also comprise receiver module 35 and detection module 36.Wherein, receiver module 35 receives the targeting signal that the terminal in this community sends, the leading sequence comprising in this targeting signal that the reference root retrieval generation receiver module 35 that detection module 36 generates according to processing module 34 receives, while having realized the targeting signal that the receiver module 35 of base station sends at the UE receiving in Yi Gegai community, the leading root sequence of part that detection module 36Zhi Duigai community is supported detects, rather than the whole leading root sequence that Dui Gai community is supported detects, save Check processing resource, reduce detection time delay, thereby access delay and the handover delay of terminal are reduced.
The embodiment of the present invention can also provide a kind of base station, comprises the leading inking device in the invention described above embodiment tri-.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a leading collocation method, is characterized in that, comprising:
Obtain leading identification information corresponding to community, corresponding leading in described community comprises that competition is leading and non-competing leading, described non-competing leading comprise useful non-competing leading and useless non-competing leading;
Determine that according to described identification information corresponding competition is leading and useful non-competing leading;
Obtain and generate the leading and described useful non-competing leading reference root sequence information of described competition;
According to described with reference to root sequence information generating reference root sequence;
Described method also comprises: according to the switching frequency of the number of the terminal in community and described terminal by corresponding described community leading be set to compete leading, useful non-competing leading and useless non-competing leading;
Describedly be leadingly set to compete leading, useful non-competing leading and useless non-competing leading comprising by corresponding described community according to the switching frequency of the number of the terminal in community and described terminal:
Described community corresponding leading according to the switching frequency of the number of the terminal in community and described terminal arrange continuously competition leading and non-competing leading, and be provided with continuously with non-competing leading and useless non-competing leading, described identification information comprises described useful non-competing leading number, described useful non-competing leading initial logic index, or
According to the switching frequency of the number of the terminal in community and described terminal, described competition is set continuously leading and described non-competing leading, and discontinuous arrange described useful non-competing leading and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark, or
According to the switching frequency of the number of the terminal in community and described terminal, discontinuous that described competition is set is leading and described non-competing leading, and discontinuously arrange described useful non-competing leadingly and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark.
2. method according to claim 1, is characterized in that, also comprises:
Receive the targeting signal that the terminal in described community sends;
Comprise leading sequence with reference to root retrieval for generating described targeting signal according to described.
3. method according to claim 1 and 2, is characterized in that, the mark that described competition is leading and described useful non-competing leading mark comprise that needs detect mark, and described useless non-competing leading mark comprises does not need to detect mark.
4. a leading inking device, is characterized in that, comprising:
Identification module, for obtaining leading identification information corresponding to community, corresponding leading in described community comprises that competition is leading and non-competing leading, described non-competing leading comprise useful non-competing leading and useless non-competing leading;
Determination module, determines that for the identification information obtaining according to described identification module corresponding competition is leading and useful non-competing leading;
Acquisition module, generates the leading and useful non-competing leading reference root sequence information of the definite competition of described determination module for obtaining;
Processing module, for the reference root sequence information generating reference root sequence of obtaining according to described acquisition module;
Described device also comprises: module is set, for according to the switching frequency of the number of the terminal in community and described terminal by corresponding described community leading be set to compete leading, useful non-competing leading and useless non-competing leading;
The described module that arranges, it is leading and non-competing leading specifically for competition is set continuously according to the switching frequency of the number of the terminal in community and described terminal, and be provided with continuously with non-competing leading and useless non-competing leading, described identification information comprises described useful non-competing leading number, described useful non-competing leading initial logic index, or
According to the switching frequency of the number of the terminal in community and described terminal, described competition is set continuously leading and described non-competing leading, and discontinuous arrange described useful non-competing leading and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark, or
According to the switching frequency of the number of the terminal in community and described terminal, discontinuous that described competition is set is leading and described non-competing leading, and discontinuously arrange described useful non-competing leadingly and described useless non-competing leading, described identification information comprises the leading mark of described competition, described useful non-competing leading mark and described useless non-competing leading mark.
5. device according to claim 4, is characterized in that, also comprises:
Receiver module, the targeting signal sending for the terminal receiving in described community;
Detection module, comprises leading sequence for the reference root retrieval generating according to described processing module for the targeting signal that generates described receiver module reception.
6. a base station, is characterized in that comprising the leading inking device described in claim 4 or 5.
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| CN200910091348.5A CN101998637B (en) | 2009-08-18 | 2009-08-18 | Method and device for configuring precursor |
| PCT/CN2010/076041 WO2011020421A1 (en) | 2009-08-18 | 2010-08-17 | Method and device of preamble configuration |
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| CN102281542B (en) * | 2011-07-29 | 2014-04-16 | 上海华为技术有限公司 | Method and device for allocating Zadoff-Chu (ZC) root sequence indexes |
| CN110072286A (en) * | 2018-01-23 | 2019-07-30 | 株式会社Ntt都科摩 | For generating the method and corresponding user terminal, base station of reference signal sequence |
| CN112702774B (en) * | 2020-12-11 | 2022-09-02 | 杭州红岭通信息科技有限公司 | Method for processing base station side of access channel |
| CN117118579A (en) * | 2022-05-16 | 2023-11-24 | 大唐移动通信设备有限公司 | Metadata transmission method, device and storage medium |
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| US8570992B2 (en) * | 2007-08-15 | 2013-10-29 | Lg Electronics Inc. | Dedicated signature allocation and choice |
| PL3799333T3 (en) * | 2007-10-02 | 2023-12-18 | Nokia Solutions And Networks Oy | Allocation of preamble sequences |
| ES2611594T3 (en) * | 2007-10-31 | 2017-05-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission mode selection during a random access procedure |
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