CN102484810B - Method for allocating relay transmission resources and devices thereof - Google Patents
Method for allocating relay transmission resources and devices thereof Download PDFInfo
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- CN102484810B CN102484810B CN200980161321.7A CN200980161321A CN102484810B CN 102484810 B CN102484810 B CN 102484810B CN 200980161321 A CN200980161321 A CN 200980161321A CN 102484810 B CN102484810 B CN 102484810B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
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Abstract
A method for allocating relay transmission resources and devices thereof are disclosed. The method includes that an indication channel is generated according to the resources respectively allocated to each relay node RN in a cell, and the indication channel includes an indication information about the length of the total resources allocated to all the RNs in the cell; the start point of the total resources allocated to all the RNs is broadcasted to the cell with high layer signaling; and the indication information is broadcasted to the cell, thereby enabling each RN to determine the prospective information according to the length of the total resources and the start point of the total resources. The signaling overhead when configuration is performed for the resources transmitted for relay can be reduced with the technique scheme.
Description
Technical field
The present invention is broadly directed to relay transmission system, more specifically, relates to the method and the equipment thereof that for relay transmission resource, distribute.
Background technology
In #57, the #57bis and #58 meeting of RAN1, the back haul link design about Class1 relaying has been discussed.A kind of new physical control channel R-PDCCH (relaying Physical Downlink Control Channel) be used in the subframe of semi-static distribution for down link backhaul data (" R-PDSCH (relaying Physical Downlink Shared Channel) ") and up link backhaul data (" R-PUSCH (relaying Physical Uplink Shared Channel) ") dynamically or " semifixed ground " distribute up link and down-chain resource.On the OFDM character subset of the subframe of distributing at the back haul link for down link, send R-PDCCH.OFDM character subset can comprise the complete set that can be used for this back haul link.
When the number of the via node (RN) in using Dynamic Resource Allocation for Multimedia and Dang Yige community becomes huge, suppose that it is incorrect that each relaying has identical and fixing R-PDCCH map section.Fig. 8 shows the resource allocation example of prior art.As shown in Figure 8, version 8 designs according to PCFICH, are exclusively used in respectively each relaying in order to place R-PCFICH by some fixing Resource Units (RE, resource element).Yet when in each community, the number of RN becomes large, the method may cause the expense in control signal design to increase.
Therefore need a kind of new resource distribution mode, to overcome above-mentioned problem.
Summary of the invention
Embodiments of the present invention have proposed a kind of relay transmission resource allocation methods and equipment thereof.
According to the one side of embodiment of the present invention, a kind of relay transmission resource allocation methods is provided, comprise: the resource of distributing respectively according to each via node (RN) in community generates indicating channel, in described indicating channel, be included as the indication information of the length of the total resources that in described community, all RN distribute; It in high-level signaling, to described Cell Broadcast CB, is the starting point of the total resources of all RN distribution; And to indicating channel described in described Cell Broadcast CB, so that described each RN determines desired information according to the starting point of the length of described total resources and described total resources.
According to embodiment of the present invention on the other hand, proposed a kind of base station, having comprised: resource allocation unit, has been used to each RN Resources allocation in community; Channel generation unit, for generating the indicating channel of the length of the total resources that are designated as all RN distribution in described community; High-level signaling processing unit, for inserting high-level signaling by the information of the starting point about described resource; Transmitting element, for sending the information of described indicating channel and the described starting point about resource to described each RN.
According to the one side again of embodiment of the present invention, a kind of via node has been proposed, comprise: receiving element, for receiving the signal sending from base station, described signal has comprised the indicating channel of length and the starting point of described total resources that is designated as the total resources that in community, all RN distribute; Information acquisition unit, obtains desired information for the mode with blind search from the signal receiving.
One side again according to embodiment of the present invention, has proposed a kind of communication system, comprises above-described base station, a plurality of via node and a plurality of mobile terminal.
Technical scheme based on above, owing to only using an indicating channel in embodiments of the present invention (, the shared whole Resource Units (RE) of R-PDCCH of group R-PCFICH) indicating RN all in Yi Ge community, compared to the prior art, reduced the expense that is used to indicate the resource of distributing into each RN.When the number of RN is larger in community, can effectively reduce the load of system.
Accompanying drawing explanation
According to following description by reference to the accompanying drawings, the advantage of the present invention easy to understand that will become, wherein:
Fig. 1 shows the schematic diagram of communication system according to the embodiment of the present invention;
Fig. 2 shows the block diagram of base station according to the embodiment of the present invention;
Fig. 3 shows the block diagram of RN according to the embodiment of the present invention;
Fig. 4 shows the flow chart of resource allocation methods according to the embodiment of the present invention;
Fig. 5 shows according to the resource of an embodiment of the invention and distributes schematic diagram;
The resource that Fig. 6 shows is according to another implementation of the invention distributed schematic diagram;
The resource that Fig. 7 shows is according to another implementation of the invention distributed schematic diagram;
Fig. 8 shows according to the resource of prior art and distributes schematic diagram.
Embodiment
To a preferred embodiment of the present invention will be described in detail, in description process, having omitted is unnecessary details and function for the present invention with reference to the accompanying drawings, to prevent that the understanding of the present invention from causing, obscures.
In embodiments of the present invention, proposed a kind of communication system of distributing for resource, as shown in Figure 1, this communication system comprises base station, relaying and a plurality of mobile terminal (UE) of the following stated.Although only show two via nodes (via node 1 and via node 2) and two mobile terminals (UE1 and UE2) in Fig. 1, yet, should be appreciated that, the communication system that embodiment of the present invention proposes can comprise via node and the mobile terminal of the normally used any amount of those skilled in the art.
Also proposed a kind of base station, as shown in Figure 2, this base station comprises resource allocation unit 210, is used to each via node (RN) Resources allocation in the community of this base station, and at this, resource can occur with the form of resource-area or Resource Unit (RE).Channel generation unit 220, for generating the indicating channel of the length of the total resources that are designated as all RN distribution in community; And high-level signaling processing unit 230, for the information of the starting point about total resources is inserted to high-level signaling, for example, in rrc layer, define new message and send this information.Transmitting element 240, for sending indicating channel and about the information of the starting point of resource to each RN.
This base station also comprises the first memory cell 250, for storing base station required information while processing, the relevant information of RN in Ru Yu community (as, the quantity of RN, sign etc.), the information relevant with the resource that can be used for distributing etc., for other unit, use.
In addition, transmitting element 240 sends the information about the starting point of resource with the form of broadcast to each RN in community.
A kind of via node (RN) has also been proposed, as shown in Figure 3, this RN comprises receiving element 310, and for receiving the signal sending from base station, this signal has comprised the indicating channel of length and the starting point of these total resources of the total resources that in the community that is designated as base station, all RN distribute; Information acquisition unit 320, obtains desired information for the mode with blind search from the signal receiving, as R-PDCCH.
This RN also comprises the second memory cell 330, for storing information acquisition unit 320 required information while processing.
Although above with the formal description of separated functional module base station and the RN of the embodiment of the present invention, but each assembly shown in Fig. 2 and Fig. 3 can be realized with a plurality of devices in actual applications, and a plurality of assemblies that illustrate also can be integrated in chip piece or an equipment in actual applications.This base station and RN also can comprise any unit and the device for other object.
Below in conjunction with Fig. 4, the base station that embodiments of the present invention are provided and the function of RN are further elaborated.
In step 410, each RN Resources allocation in the community that the resource allocation unit 210 of base station is this base station.Resource distribute the relevant information of the RN in required various information ，Ru Yu community (as, the quantity of RN, sign etc.), the information relevant with the resource that can be used for distributing etc. can be stored in the first memory cell 250.Resource allocation unit can be used normally used resource allocation algorithm for each RN Resources allocation.
The resource-area that the resource of preferably, distributing for each RN in step 410 is comprised of continuous Resource Unit.
In step 420, channel generation unit 220, according to the resource of distributing for each RN in step 410, generates the indicating channel group R-PCFICH (group R-PCFICH) of the length of the total resources that are designated as each RN distribution.
Group R-PCFICH is only used resource-area (one group of continuous Resource Unit (RE)) to indicate the shared whole Resource Units of R-PDCCH of all RN in Yi Ge community, rather than the Resource Unit that each RN is taken is separately indicated respectively.
In step 430, transmitting element 240 is sent as the starting point of the total resources of each RN distribution by high-level signaling.Preferably, the mode by broadcast sends.Here said high-level signaling refers to the signaling of each layer on physical layer, as rrc layer signaling.
Alternatively, end point and/or the starting point of the total resources that distribute for each RN can be sent together.
In step 440, transmitting element 240 sends group R-PCFICH, preferably, adopts the mode of broadcast to send.
Each RN in step 450Zhong， community is the R-PDCCH to find that it is special-purpose by the whole resource-area of blind search.Concrete method is, receiving element 310 in RN is from base station receives signal, from the starting point of resource-area, the signal that obtains corresponding transmitted over resources with certain granularity (for example, in the situation that having 8 CCE (control channel unit), can carry out signal acquisition with the granularity of 1,2,4 control channel unit).Because RN has certain understanding to the desired signal receiving, therefore information acquisition unit 320 can use the information that RN itself expects (as, pseudo random sequence with the prior agreement in base station) decode to the received signal, if success, obtain desired information, as R-PDCCH.Preferably, at this, use CRC check to decode, if CRC check result coupling obtains desired information.
Preferably, RN can be processed to required information (as, the prior pseudo random sequence of agreement) is stored in the second memory cell 330.
In the above embodiment, preferably, long for fear of decoding delay, can be according to the indicated value of total frequency spectrum resource changing group R-PCFICH for all R-PDCCH transmission.Starting point and/or end point also can be according to used total frequency spectrum resource changings.For example, a resource shrinkage that can use in community, the indicated value of group R-PCFICH also can correspondingly diminish, and starting point and/or end point also correspondingly change.
Fig. 5-7 show respectively for the resource in these three kinds of situations of FDM multiplexing scheme, TDM multiplexing scheme and FDM+TDM hybrid multiplex scheme to be distributed.The transverse axis is-symbol number of Fig. 5-7, the longitudinal axis is sub-carrier number, the concrete number of symbol and subcarrier determines according to concrete LTE agreement.As can be seen from the figure the technical scheme, proposing in embodiments of the present invention and the mode of resource multiplex are irrelevant.
Compared with Fig. 8 of prior art in Fig. 5-7, can find out, embodiments of the present invention have been saved the R-PCFICH corresponding with each RN.And along with the increase of RN in community, this effect is more obvious.
Those skilled in the art should be easy to recognize, can realize by programmed computer the different step of said method.At this, some execution modes comprise equally machine readable or computer-readable program storage device (as, digital data storage medium) and coding machine can carry out or the executable program command of computer, wherein, some or all steps of said method are carried out in this instruction.For example, program storage device can be digital storage, magnetic storage medium (as Disk and tape), hardware or the readable digital data storage medium of light.Execution mode comprises the programmed computer of the described step of carrying out said method equally.
Description and accompanying drawing only illustrate principle of the present invention.Therefore should be appreciated that those skilled in the art can advise different structures, although these different structures clearly do not describe herein or illustrate, within having embodied principle of the present invention and being included in its spirit and scope.In addition, all examples of herein mentioning are the main only design with help reader understanding's principle of the present invention and promotion this area that inventor was contributed for teaching purpose clearly, and should be interpreted as not being the restriction to these specific examples of mentioning and condition.In addition, all statement and specific examples thereof of mentioning principle of the present invention, aspect and execution mode comprise its equivalent interior herein.
Description is above only for realizing embodiments of the present invention; it should be appreciated by those skilled in the art; the any modification or partial replacement not departing from the scope of the present invention; all should belong to the scope that claim of the present invention limits; therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1. a relay transmission resource allocation methods, comprising:
The resource of distributing respectively according to each via node RN in community generates indicating channel, is included as the indication information of the length of the total resources that in described community, all RN distribute in described indicating channel;
It in high-level signaling, to described Cell Broadcast CB, is the starting point of the total resources of all RN distribution; And
To indicating channel described in described Cell Broadcast CB, so that described each RN determines desired information according to the starting point of the length of described total resources and described total resources.
2. method according to claim 1, wherein, described each RN determines that according to the starting point of the total length of described resource and total resource desired information comprises:
Described each RN carries out blind search to be defined as the resource of its distribution according to the starting point of the total length of described resource and total resource.
3. method according to claim 2, wherein, described blind search comprises:
With specific granularity, obtain the signal of corresponding transmitted over resources;
The information of using described each RN itself to expect is decoded to the signal of the transmitted over resources of described correspondence respectively, if successfully decoded obtains the information of described expection.
4. method according to claim 1, also comprises:
According to the total frequency spectrum resource for all R-PDCCH transmission, change the starting point of total length and the described total resources of described resource.
5. method according to claim 1, also comprises,
In high-level signaling, to described Cell Broadcast CB, be the end point of the total resources of all RN distribution, so that described each RN determines desired information according to the starting point of the length of described total resources and described total resources and/or end point.
6. a base station, comprising:
Resource allocation unit, is used to each RN Resources allocation in the community of described base station;
Channel generation unit, for generating the indicating channel of the length of the total resources that are designated as all RN distribution in described community;
High-level signaling processing unit, for inserting high-level signaling by the information of the starting point about described resource;
Transmitting element, for sending the information of described indicating channel and the described starting point about resource to described each RN.
7. base station according to claim 6, wherein, described transmitting element sends the information of the described starting point about resource with the form of broadcast to described each RN.
8. a via node, comprising:
Receiving element, for receiving the signal sending from base station, described signal has comprised the indicating channel of length and the starting point of described total resources of the total resources that in the community that is designated as described base station, all RN distribute;
Information acquisition unit, obtains desired information for the mode with blind search from the signal receiving.
9. via node according to claim 8, also comprises
The second memory cell, for storing information acquisition unit in order to carry out the information of blind search.
10. a wireless communication system, comprises according to the base station described in claim 6 or 7, a plurality of via node and a plurality of mobile terminal according to claim 8 or claim 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/001219 WO2011054127A1 (en) | 2009-11-03 | 2009-11-03 | Method for allocating relay transmission resources and devices thereof |
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| CN102484810A CN102484810A (en) | 2012-05-30 |
| CN102484810B true CN102484810B (en) | 2014-02-19 |
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| KR102602530B1 (en) * | 2019-08-15 | 2023-11-14 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Resource directing method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106794A (en) * | 2006-07-10 | 2008-01-16 | 华为技术有限公司 | Relay forward method for broadband wireless access |
| CN101291473A (en) * | 2007-04-20 | 2008-10-22 | 中兴通讯股份有限公司 | Resource scheduling method of multi-hop relaying network |
| WO2009072191A1 (en) * | 2007-12-05 | 2009-06-11 | Fujitsu Limited | Parameter collecting method, radio base station and relay station |
| CN101527934A (en) * | 2008-03-05 | 2009-09-09 | 上海华为技术有限公司 | Method, system and correlative device for allocating resources |
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- 2009-11-03 CN CN200980161321.7A patent/CN102484810B/en active Active
- 2009-11-03 WO PCT/CN2009/001219 patent/WO2011054127A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106794A (en) * | 2006-07-10 | 2008-01-16 | 华为技术有限公司 | Relay forward method for broadband wireless access |
| CN101291473A (en) * | 2007-04-20 | 2008-10-22 | 中兴通讯股份有限公司 | Resource scheduling method of multi-hop relaying network |
| WO2009072191A1 (en) * | 2007-12-05 | 2009-06-11 | Fujitsu Limited | Parameter collecting method, radio base station and relay station |
| CN101527934A (en) * | 2008-03-05 | 2009-09-09 | 上海华为技术有限公司 | Method, system and correlative device for allocating resources |
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| CN102484810A (en) | 2012-05-30 |
| WO2011054127A1 (en) | 2011-05-12 |
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Address after: 201206 Pudong New Area, Nanjing Road, No. 388, Shanghai Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Pudong New Area, Nanjing Road, No. 388, Shanghai Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |
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