CN101854638A - Resource block grouping and beam forming method and device - Google Patents
Resource block grouping and beam forming method and device Download PDFInfo
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- CN101854638A CN101854638A CN200910132361A CN200910132361A CN101854638A CN 101854638 A CN101854638 A CN 101854638A CN 200910132361 A CN200910132361 A CN 200910132361A CN 200910132361 A CN200910132361 A CN 200910132361A CN 101854638 A CN101854638 A CN 101854638A
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- resource block
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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Abstract
The invention discloses a resource block grouping and beam forming method and a resource block grouping and beam forming device. Resource blocks are grouped and grouped resource blocks correspond to wave beams; two adjacent wave beams in different cells map different resource blocks; and two adjacent wave beams in the same cell map different resource blocks. Therefore, co-channel interference among cells is effectively reduced.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of method and apparatus of Resource Block grouping wave beam forming.
Background technology
(Long-Term Evolution LTE) in the system, when carrying out transfer of data, will go up/down time-frequency territory physical resource is formed Resource Block, and (Resource Block RB), dispatches and distributes as physical resource unit at the 3Gpp Long Term Evolution.Under regular circulation prefix (Normal CP) situation, a Physical Resource Block (Physical Resource Block, PRB) on frequency domain, comprise 12 continuous sub-carriers, on time domain, comprise 7 continuous OFDMs (Orthogonal Frequency Division Multiplexing, OFDM) symbol, be that the frequency domain width is 180kHz, time span is 0.5ms.
Cellular radio Communication system is realized frequency reuse by a big service area is divided into many less overlay areas, to improve power system capacity.Each little area of coverage is called as a sub-district.If when to adopt the simple multiplexing factor be one frequency resource allocation, different districts adopted identical frequency, thereby work in can the phase mutual interference between the signal of sub-district of same frequency.
LTE system and senior Long Term Evolution (LTE-Advanced) system support the wave beam forming mode, adopt at present in different sub-districts the mode of distributes resource blocks at random, when two users are in the different districts edge, and it is adjacent when nearer, the wave beam that these two users will be in two base stations (eNB) covers down, to cause bigger co-channel interference if give this Resource Block that two users distribute identical this moment.
Summary of the invention
The technical problem to be solved in the present invention proposes a kind of Resource Block grouping beam form-endowing method and device exactly, during with solution LTE or LTE-Advanced system group network, be adopted as the method for different user Random assignment Resource Block, the different user that is positioned at neighbor cell is assigned to identical Resource Block, thereby brings the problem of co-channel interference.
In order to solve the problems of the technologies described above, the invention provides a kind of method of Resource Block grouping wave beam forming, comprising:
The base station is with the whole Resource Block groupings under the current transmission bandwidth, and packet count is corresponding with the numbers of beams of design in advance;
The mapping relations of Resource Block group and wave beam are set up in described base station, and make two adjacent beams mapping different resource piece groups that are positioned at different districts and two adjacent beams that are positioned at same sub-district shine upon different resource piece groups;
Described base station is when giving user resource allocation, select the wave beam of this user's correspondence, have one or more Resource Block in the Resource Block group of mapping relations for this user priority distributes with this wave beam, described beams carry corresponding user data Resource Block is launched by antenna port.
Further, said method also can have following characteristics:
Described packet count and corresponding being meant of designing in advance of numbers of beams: described packet count equates with the numbers of beams of design in advance.
Further, said method also can have following characteristics:
In the described step, adjacent Resource Block is divided in the different Resource Block groups the whole Resource Block groupings under the current transmission bandwidth.
Further, said method also can have following characteristics:
In the described step, Resource Block is divided in the Resource Block group by the Resource Block order the whole Resource Block groupings under the current transmission bandwidth.
Further, said method also can have following characteristics:
The wave beam of this user's correspondence of described selection comprises:
Reaching angle direction and ripple according to this user's ripple reaches angle value and determines corresponding wave beam.
In order to solve the problems of the technologies described above, the present invention also provides a kind of device of Resource Block grouping wave beam forming, comprising: the Resource Block grouping module of Xiang Lianing, Resource Block group and wave beam mapping block, wave beam forming module successively,
Described Resource Block grouping module is used for the whole Resource Block groupings under the current transmission bandwidth, and packet count is corresponding with the numbers of beams of design in advance;
Described Resource Block group and wave beam mapping block are used to set up the mapping relations of Resource Block group and wave beam, and make two adjacent beams mapping different resource piece groups that are positioned at different districts and two adjacent beams that are positioned at same sub-district shine upon different resource piece groups;
Described wave beam forming module is used for when giving user resource allocation, select the wave beam of this user's correspondence, have one or more Resource Block in the Resource Block group of mapping relations for this user priority distributes with this wave beam, described beams carry corresponding user data Resource Block is launched by antenna port.
Further, said apparatus also can have following characteristics:
Described Resource Block grouping module is used for Resource Block is grouped into: packet count equates with the numbers of beams of design in advance.
Further, said apparatus also can have following characteristics:
Described Resource Block grouping module also is used for adjacent Resource Block is divided into different Resource Block groups.
Further, said apparatus also can have following characteristics:
Described Resource Block grouping module also is used for Resource Block is divided into the Resource Block group by the Resource Block order.
Further, said apparatus also can have following characteristics: described wave beam forming module also is used for ripple according to this user and reaches angle direction and ripple and reach angle value and determine corresponding wave beam.
By the present invention, when the multi-antenna beam figuration, Resource Block grouping and grouping resources piece and wave beam is number corresponding, and make two adjacent beams mapping different resource pieces that are positioned at different districts and two adjacent beams that are positioned at same sub-district shine upon the different resource pieces, thereby effectively reduce the minizone co-channel interference.On the other hand adjacent Resource Block is divided into different Resource Block groups, also brings certain frequency diversity gain.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention;
Fig. 2 is the structured flowchart of the device of the embodiment of the invention;
Fig. 3 is the schematic diagram that the present invention uses the Resource Block group technology of example;
Fig. 4 a and Fig. 4 b are that the present invention uses the mapping schematic diagram of the Resource Block of example to wave beam.
Embodiment
The present invention will be in conjunction with Resource Block grouping and beam selection, the beam form-endowing method of LTE and LTE-Advanced system when designing many antennas, be about to Resource Block and form corresponding mapping relations by certain rule grouping and with the wave beam of optimal design in advance, the corresponding different wave beam of different Resource Block number, and then carry out wave beam forming, such beam form-endowing method is than traditional beam form-endowing method of Resource Block at random, the different user priority allocation of two neighbor cells that can guarantee to be in cell edge is to different Resource Block, thereby effectively reduces the minizone co-channel interference.
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 1, the method for the embodiment of the invention comprises the steps:
Preferably, described packet count equates with the numbers of beams of design in advance;
Preferably, adjacent Resource Block is divided in the different Resource Block groups, divides into groups such as the staggered mode such as divide into groups of Resource Block time-frequency sequence number;
Also can adopt Resource Block is divided into the mode of Resource Block group by the Resource Block order, the Resource Block that is about to adjacent continuous is divided into one group;
Wherein, antenna and wave beam have corresponding relation, an antenna or many corresponding wave beams of antenna;
In step 103, the ripple that obtains described user earlier reaches angle direction, again according to the present beam coverage area of user Bo Da angle value estimating user, position according to the active user, from wave beam pre-designed and that shine upon with Resource Block, select suitable wave beam, have one or more Resource Block in the Resource Block group of mapping relations for this user distributes with this wave beam afterwards; During mapping, make two adjacent beams that are positioned at different districts shine upon the different resource pieces, and two adjacent beams mapping different resource pieces that are positioned at same sub-district.
As shown in Figure 2, the Resource Block of embodiment of the invention grouping beam size enlargement apparatus is applied to comprise in the base station: the Resource Block grouping module of Xiang Lianing, Resource Block group and wave beam mapping block, wave beam forming module successively,
Wherein, described Resource Block grouping module is used for the whole Resource Block groupings under the current transmission bandwidth, and packet count is corresponding with the numbers of beams of design in advance;
Described Resource Block group and wave beam mapping block are used to set up the mapping relations of Resource Block group and wave beam, and make two adjacent beams mapping different resource piece groups that are positioned at different districts and two adjacent beams that are positioned at same sub-district shine upon different resource piece groups;
Described wave beam forming module is used for when giving user resource allocation, select the wave beam of this user's correspondence, have one or more Resource Block in the Resource Block group of mapping relations for this user priority distributes with this wave beam, described beams carry corresponding user data Resource Block is launched by antenna port.Preferably, described Resource Block grouping module is used for Resource Block is grouped into: packet count equates with the numbers of beams of design in advance.
Preferably, described Resource Block grouping module also is used for adjacent Resource Block is divided into different Resource Block groups.
Preferably, described Resource Block grouping module also is used for Resource Block is divided into the Resource Block group by the Resource Block order.
Preferably, described wave beam forming module also is used for ripple according to this user and reaches angle direction and ripple and reach angle value and determine corresponding wave beam.
Further describe with concrete application example below:
The number of beams of supposing a sub-district of predefined complete covering is N
Beam〉=4, four chromogens are managed according to the map, can draw: wave beam will make do not have the zone of two adjacent (the public boundary line segment is arranged) that identical wave beam is arranged when covering, and the minimal amount that collimated beam of sound covers the different beams of required usefulness is 4.
Suppose that the Resource Block packet count is N
RB, Resource Block group number can be set equate, be i.e. N with number of beams
RB=N
BeamIn Resource Block when grouping, adopt as shown in Figure 3, and wherein abscissa is the time, and l represents OFDM symbol sequence number, and ordinate is a frequency, and k represents the sequence number of the subcarrier that comprises in the OFDM symbol.During transmission bandwidth 20M, corresponding 100 Resource Block of descending every time slot, each time is made up of the frequency patterns of 7 continuous OFDM symbol durations and 12 continuous subcarriers.Corresponding 1200 subcarriers of OFDM symbol.
Work as N
RB=4 o'clock, promptly Resource Block was divided into 4 groups, and Resource Block can divide into groups in order, did not comprise identical Resource Block in each Resource Block group.The 1st Resource Block group comprises: RB0, RB1, RB2 ..., RB24; The 2nd Resource Block group comprises: RB25, RB26 ..., RB49; The 3rd Resource Block group comprises: RB50, RB51 ..., RB74; The 4th Resource Block group comprises: RB75, RB76 ..., RB99.
Can certainly adopt other rule groupings, divide into groups etc. as Resource Block time-frequency sequence number is staggered.At this moment, adjacent Resource Block is divided into different Resource Block groups, also brings certain frequency diversity gain.
Resource Block to the mapping of wave beam as shown in Figure 4.
The resource block mapping in the sub-district as Fig. 4 a) shown in, the Resource Block group is corresponding with wave beam respectively, and two adjacent beams of same sub-district mapping different resource pieces.To be Resource Block group 11 corresponding with wave beam, Resource Block group 2 and wave beam are 2 corresponding, Resource Block group 3 and wave beam are 3 corresponding, Resource Block group 4 is corresponding with wave beam 4.
In the resource block mapping in the neighbor cell as Fig. 4 b) shown in, be positioned at two adjacent beams mapping different resource pieces of different districts during the mapping of neighbor cell Resource Block and wave beam.Promptly in the eNB1 sub-district, Resource Block group 1 and wave beam are 1 corresponding, Resource Block group 2 and wave beam are 2 corresponding, Resource Block group 3 and wave beam are 3 corresponding, Resource Block group 4 is corresponding with wave beam 4.In the eNB2 sub-district, Resource Block group 2 and wave beam are 1 corresponding, Resource Block group 3 and wave beam are 2 corresponding, Resource Block group 4 and wave beam are 3 corresponding, Resource Block group 1 is corresponding with wave beam 4.
From Fig. 4 b) as can be seen, should to coordinate mutually between eNB1 and the eNB2 with in the example, the different user priority allocation that assurance is in two neighbor cells of cell edge arrives different Resource Block.Can pass through protocol in prior art, pass-along message is finished the process of coordination between eNB, repeats no more herein.
In sum, one aspect of the present invention can guarantee to be in the different user priority allocation of two neighbor cells of cell edge to different Resource Block, thereby effectively reduces the minizone co-channel interference.On the other hand adjacent Resource Block is divided into different Resource Block groups, thereby brings certain frequency diversity gain.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the method for Resource Block grouping wave beam forming comprises:
The base station is with the whole Resource Block groupings under the current transmission bandwidth, and packet count is corresponding with the numbers of beams of design in advance;
The mapping relations of Resource Block group and wave beam are set up in described base station, and make two adjacent beams mapping different resource piece groups that are positioned at different districts and two adjacent beams that are positioned at same sub-district shine upon different resource piece groups;
Described base station is when giving user resource allocation, select the wave beam of this user's correspondence, have one or more Resource Block in the Resource Block group of mapping relations for this user priority distributes with this wave beam, described beams carry corresponding user data Resource Block is launched by antenna port.
2. the method for claim 1 is characterized in that, described packet count and corresponding being meant of designing in advance of numbers of beams: described packet count equates with the numbers of beams of design in advance.
3. the method for claim 1 is characterized in that, in the described step with the whole Resource Block groupings under the current transmission bandwidth, adjacent Resource Block is divided in the different Resource Block groups.
4. the method for claim 1 is characterized in that, in the described step with the whole Resource Block groupings under the current transmission bandwidth, Resource Block is divided in the Resource Block group by the Resource Block order.
5. the method for claim 1 is characterized in that, the wave beam of this user's correspondence of described selection comprises:
Reaching angle direction and ripple according to this user's ripple reaches angle value and determines corresponding wave beam.
6. the device of Resource Block grouping wave beam forming comprises: the Resource Block grouping module of Xiang Lianing, Resource Block group and wave beam mapping block, wave beam forming module successively,
Described Resource Block grouping module is used for the whole Resource Block groupings under the current transmission bandwidth, and packet count is corresponding with the numbers of beams of design in advance;
Described Resource Block group and wave beam mapping block are used to set up the mapping relations of Resource Block group and wave beam, and make two adjacent beams mapping different resource piece groups that are positioned at different districts and two adjacent beams that are positioned at same sub-district shine upon different resource piece groups;
Described wave beam forming module is used for when giving user resource allocation, select the wave beam of this user's correspondence, have one or more Resource Block in the Resource Block group of mapping relations for this user priority distributes with this wave beam, described beams carry corresponding user data Resource Block is launched by antenna port.
7. device as claimed in claim 6 is characterized in that, described Resource Block grouping module is used for Resource Block is grouped into: packet count equates with the numbers of beams of design in advance.
8. device as claimed in claim 6 is characterized in that, described Resource Block grouping module also is used for adjacent Resource Block is divided into different Resource Block groups.
9. device as claimed in claim 6 is characterized in that, described Resource Block grouping module also is used for Resource Block is divided into the Resource Block group by the Resource Block order.
10. device as claimed in claim 6 is characterized in that, described wave beam forming module also is used for ripple according to this user and reaches angle direction and ripple and reach angle value and determine corresponding wave beam.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910132361A CN101854638A (en) | 2009-03-30 | 2009-03-30 | Resource block grouping and beam forming method and device |
| PCT/CN2009/075864 WO2010111872A1 (en) | 2009-03-30 | 2009-12-23 | Method and device for resource blocks grouping to beam form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910132361A CN101854638A (en) | 2009-03-30 | 2009-03-30 | Resource block grouping and beam forming method and device |
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| CN101854638A true CN101854638A (en) | 2010-10-06 |
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| CN200910132361A Pending CN101854638A (en) | 2009-03-30 | 2009-03-30 | Resource block grouping and beam forming method and device |
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| CN (1) | CN101854638A (en) |
| WO (1) | WO2010111872A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355689A (en) * | 2011-09-27 | 2012-02-15 | 大唐移动通信设备有限公司 | Terminal interference test realizing method and device |
| CN103095355A (en) * | 2011-11-01 | 2013-05-08 | 中兴通讯股份有限公司 | Method and device for resource block grouping beam forming |
| WO2014139174A1 (en) * | 2013-03-15 | 2014-09-18 | Qualcomm Incorporated | Improved random access procedure with beamforming in lte |
| CN104301898A (en) * | 2013-07-19 | 2015-01-21 | 华为技术有限公司 | Resource allocation method and system |
| CN108011657A (en) * | 2016-10-27 | 2018-05-08 | 中国移动通信有限公司研究院 | Wave beam sending method, device and base station in a kind of extensive antenna system |
| WO2018103051A1 (en) * | 2016-12-08 | 2018-06-14 | 广东欧珀移动通信有限公司 | Method and apparatus for wireless communication |
| CN110089171A (en) * | 2016-12-19 | 2019-08-02 | Oppo广东移动通信有限公司 | Transmit method, the network equipment and the terminal device of information |
| CN110999113A (en) * | 2017-06-16 | 2020-04-10 | 中兴通讯股份有限公司 | Apparatus and method for allocating resources |
| WO2022242662A1 (en) * | 2021-05-19 | 2022-11-24 | 中兴通讯股份有限公司 | Resource allocation method, communication node, and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003235072A (en) * | 2002-02-06 | 2003-08-22 | Ntt Docomo Inc | Wireless resource assignment method, wireless resource assignment apparatus, and mobile communication system |
| JPWO2008013173A1 (en) * | 2006-07-24 | 2009-12-17 | パナソニック株式会社 | Reception device, transmission device, and communication method |
| CN104378191B (en) * | 2006-12-28 | 2018-01-12 | 诺基亚技术有限公司 | Method and apparatus for the resource-constrained distribution in Long Term Evolution |
-
2009
- 2009-03-30 CN CN200910132361A patent/CN101854638A/en active Pending
- 2009-12-23 WO PCT/CN2009/075864 patent/WO2010111872A1/en active Application Filing
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355689B (en) * | 2011-09-27 | 2013-11-20 | 大唐移动通信设备有限公司 | Terminal interference test realizing method and device |
| CN102355689A (en) * | 2011-09-27 | 2012-02-15 | 大唐移动通信设备有限公司 | Terminal interference test realizing method and device |
| CN103095355B (en) * | 2011-11-01 | 2018-08-17 | 南京中兴新软件有限责任公司 | A kind of method and apparatus of resource block grouping wave beam forming |
| CN103095355A (en) * | 2011-11-01 | 2013-05-08 | 中兴通讯股份有限公司 | Method and device for resource block grouping beam forming |
| WO2014139174A1 (en) * | 2013-03-15 | 2014-09-18 | Qualcomm Incorporated | Improved random access procedure with beamforming in lte |
| US10299275B2 (en) | 2013-03-15 | 2019-05-21 | Qualcomm Incorporated | Random access procedure with beamforming in LTE |
| CN104301898B (en) * | 2013-07-19 | 2018-12-14 | 华为技术有限公司 | A kind of resource allocation methods and system |
| CN104301898A (en) * | 2013-07-19 | 2015-01-21 | 华为技术有限公司 | Resource allocation method and system |
| CN108011657A (en) * | 2016-10-27 | 2018-05-08 | 中国移动通信有限公司研究院 | Wave beam sending method, device and base station in a kind of extensive antenna system |
| WO2018103051A1 (en) * | 2016-12-08 | 2018-06-14 | 广东欧珀移动通信有限公司 | Method and apparatus for wireless communication |
| US10959215B2 (en) | 2016-12-08 | 2021-03-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and apparatus for wireless communication |
| US11659554B2 (en) | 2016-12-08 | 2023-05-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and apparatus for wireless communication |
| CN110089171A (en) * | 2016-12-19 | 2019-08-02 | Oppo广东移动通信有限公司 | Transmit method, the network equipment and the terminal device of information |
| CN110089171B (en) * | 2016-12-19 | 2021-01-05 | Oppo广东移动通信有限公司 | Information transmission method, network equipment and terminal equipment |
| US11234228B2 (en) | 2016-12-19 | 2022-01-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for transmitting information, network device and terminal device |
| US11659568B2 (en) | 2016-12-19 | 2023-05-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for transmitting information, network device and terminal device |
| CN110999113A (en) * | 2017-06-16 | 2020-04-10 | 中兴通讯股份有限公司 | Apparatus and method for allocating resources |
| WO2022242662A1 (en) * | 2021-05-19 | 2022-11-24 | 中兴通讯股份有限公司 | Resource allocation method, communication node, and storage medium |
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| Publication number | Publication date |
|---|---|
| WO2010111872A1 (en) | 2010-10-07 |
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Application publication date: 20101006 |