WO2007099675A1 - 多入力多出力通信システム、送信機及びそれらにおけるリソース割り当て方法 - Google Patents
多入力多出力通信システム、送信機及びそれらにおけるリソース割り当て方法 Download PDFInfo
- Publication number
- WO2007099675A1 WO2007099675A1 PCT/JP2006/322480 JP2006322480W WO2007099675A1 WO 2007099675 A1 WO2007099675 A1 WO 2007099675A1 JP 2006322480 W JP2006322480 W JP 2006322480W WO 2007099675 A1 WO2007099675 A1 WO 2007099675A1
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- WIPO (PCT)
- Prior art keywords
- receiver
- transmitter
- resource
- coefficient
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H04B7/0413—MIMO systems
-
- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- 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
- H04L5/0037—Inter-user or inter-terminal allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- Multi-input multi-output communication system transmitter, and resource allocation method in them
- the present invention relates to a multi-input multi-output communication system, a transmitter, and a resource allocation method in them for performing multi-input multi-output (MIMO) communication in wireless communication in which communication is performed using wireless technology.
- MIMO multi-input multi-output
- the HSDPA High Speed Downlink Packet Access
- W—CDMA Wideband Code Division Multiple Access
- MIMO multi-input multi-output
- an object of the present invention is to provide a multiple-input multiple-output communication system, a transmitter, and a resource allocation method therefor that can improve throughput.
- the present invention provides:
- a multi-input multi-output communication system comprising a transmitter and a plurality of receivers each having a plurality of antennas for communication with the transmitter.
- the transmitter extracts a CQI value, which is a value indicating the reception quality measured and transmitted by the receiver, from data transmitted and received from the receiver, and is set with a weighting set in advance. And combining the extracted CQI values according to the calculation result, calculating a resource coefficient for allocating resources for transmitting data to the receiver from the combined result, and based on the resource coefficient, It is characterized by allocating resources for transmitting data to the receiver.
- CQI extraction means for extracting a CQI value, which is a value indicating reception quality measured and transmitted by the receiver, from data transmitted from the receiver and received;
- a coefficient calculator for synthesizing the extracted CQI values according to a preset weight Step and
- the transmitter includes storage means in which the resource coefficient and the content of a resource to be allocated to transmit data to the receiver are stored in association with each other in advance. To do.
- a transmitter for transmitting data to a plurality of receivers having a plurality of antennas the reception quality measured and transmitted from the data transmitted from the receiver and received by the receiver
- a CQI value that is a value indicating the value is extracted, the extracted CQI value is combined according to a preset weight, and a resource for transmitting data to the receiver is allocated from the combined result
- a resource coefficient is calculated, and a resource for transmitting data to the receiver is assigned based on the resource coefficient.
- CQI extraction means for extracting a CQI value, which is a value indicating reception quality measured and transmitted by the receiver, from data received by transmitting the receiver power;
- the present invention is characterized by comprising storage means for storing the resource coefficient and the content of the resource to be allocated to transmit data to the receiver in advance in association with each other.
- a resource allocation method in a multiple-input multiple-output communication system including a transmitter and a plurality of receivers including a plurality of antennas that perform communication with the transmitter.
- the transmitter synthesizes the extracted CQI values according to preset weights. And processing
- the transmitter has a process of allocating resources for transmitting data to the receiver based on the resource coefficient.
- the CQI is a value indicating the reception quality measured and transmitted by the receiver from the data transmitted from the receiver and received by the transmitter.
- the values are extracted, the extracted CQI values are combined according to a preset weight, and the resultant power is also calculated as a resource coefficient to allocate resources for transmitting data to the receiver, Based on the calculated resource factor, resources for transmitting data to the receiver are allocated.
- a CQI value which is a value indicating the reception quality measured and transmitted by the receiver from the data transmitted from the receiver and received by the transmitter. Extract and combine the extracted CQI values according to preset weights, calculate the resulting resource coefficient to allocate resources for transmitting data to the receiver, and calculate the calculated resource coefficient Based on the above, it is configured to allocate resources for transmitting data to the receiver, so that the throughput can be improved.
- FIG. 1 is a diagram showing an embodiment of a multiple-input multiple-output communication system according to the present invention.
- FIG. 2 is a diagram illustrating a configuration example of a transmitter illustrated in FIG. 1.
- FIG. 3 is a flowchart for explaining a coefficient calculation method in a coefficient calculation unit.
- FIG. 4 is a flowchart for explaining a subroutine of step 2 in the flowchart shown in FIG.
- FIG. 5 A flow chart for explaining a method of determining the matrix Ml in (Equation 2) according to the communication method. Yat.
- FIG. 6 is a flowchart for explaining a resource allocation method in the resource allocation unit.
- FIG. 7 is a diagram showing an example of the contents of a table for associating resource coefficients with allocated resources.
- FIG. 1 is a diagram showing an embodiment of a multiple-input multiple-output communication system according to the present invention.
- this embodiment is composed of a transmitter 101 and a plurality of receivers 102-1 to 102- ⁇ .
- the transmitter 101 is provided with antennas 111 1 to: L 11 ⁇ , and the receivers 102-1 to 102- ⁇ are provided with antennas 121-1 to 121- ⁇ , respectively. .
- data is transmitted and received between the transmitter 101 and the receivers 102-1 to 102- ⁇ .
- FIG. 2 is a diagram illustrating a configuration example of the transmitter 101 illustrated in FIG.
- Transmitter 101 shown in FIG. 1 includes antenna 111 1 to L 11 ⁇ , transmission / reception unit 201, modulation / demodulation unit 202, demultiplexing unit 203, and CQI extraction as shown in FIG. Unit 204, coefficient calculation unit 205, resource allocation unit 206, and storage unit 207 are provided.
- FIG. 2 shows only the components related to the present invention among the components of the transmitter 101.
- Antenna 111 1 ⁇ : L 11 ⁇ transmits and receives radio waves to and from receivers 102-1 to 102-j8 shown in FIG.
- the transmission / reception unit 201 transmits / receives data to / from the receivers 102-1 to 102- ⁇ shown in FIG. 1 via the antennas 111-1 to 111- ⁇ .
- the modulation / demodulation unit 202 demodulates the data received by the transmission / reception unit 201 via the antennas 111-1 to: L11- ⁇ , and also receives the antennas 111-1 to 111. — Modulates data transmitted from the transceiver 201 to the receivers 102-1 to 102 ⁇ via ⁇ .
- the data demodulated by the modulation / demodulation unit 202 is data received by the transmission / reception unit 201 via the plurality of antennas 111-1 to: L 11- ⁇ . Since the data modulated by the modulation / demodulation unit 202 is data transmitted from the transmission / reception unit 201 via the plurality of antennas 111-1 to L 11- ⁇ , the plurality of data Data.
- CQI extraction section 204 extracts a CQI (Channel Quality Indicator) value indicating the reception quality of the data multiplexed by demultiplexing section 203.
- This CQI value is a value obtained by measuring the reception quality of the data transmitted from the transmitter 101 and received by the receivers 102-1-102 ⁇ at the receivers 102-1-102- ⁇ .
- 8 forces are fed back to the transmitter 101.
- coefficient calculating section 205 calculates a coefficient for allocating resources for transmitting data to receivers 102-1 to 102- ⁇ .
- the resource allocation unit 206 allocates resources for transmitting data to the receivers 102-1 to 102-
- the storage unit 207 corresponds to the CQI value extracted by the CQI extraction unit 204, the weighting coefficient used when calculating the coefficient by the coefficient calculation unit 205, and the coefficient calculated by the coefficient calculation unit 205. The contents of the assigned resource are stored.
- receivers 10 2-1 to 102 ⁇ reception qualities of data transmitted and received from antennas 111-1 to L 11 - ⁇ of transmitter 101 are measured. In other words, for example, when attention is paid to the receiver 102-1, the data transmitted from the antenna 111-1 of the transmitter 101 and received by the antenna 121-1 of the receiver 102-1, the antenna of the transmitter 101 is transmitted.
- FIG. 3 is a flowchart for explaining a coefficient calculation method in the coefficient calculation unit 205. It is.
- a unique receiver number assigned in advance to each of the receivers 102-1 to 102- ⁇ to be processed is initialized in step 1.
- the initialization here is to set the receiver number to be processed to “1”.
- step 2 a coefficient is calculated for each transmitting antenna.
- FIG. 4 is a flowchart for explaining the subroutine of step 2 in the flowchart shown in FIG.
- step 2 shown in FIG. 3 is performed in FIG. 4 by first assigning each of the antennas 111 1 to 111 L 11 ⁇ of the transmitter 101 to be processed in advance sequentially!
- the antenna number is initialized in step 11.
- the initialization here is to set the antenna number to be processed to “1”.
- the CQI value stored in the storage unit 207 is read in step 12.
- the CQI value corresponding to the transmit antenna number to be processed is read.
- the number of CQI values to be read is “ ⁇ ” which is the number of antennas 121-1 to 121 - ⁇ of the receiver 102 as described above.
- Equation 2 is a matrix of ⁇ rows and ⁇ columns.
- the receiver number is “a” and the transmitter 1
- the coefficient is held in a row and b column.
- step 15 the antenna number is incremented by “1”. Then, it is determined in step 16 whether or not the incremented antenna number power is larger than the number of all antennas 111-1 ⁇ : L 11 ⁇ of the transmitter 101.
- the receiver number power “l” is incremented in step 3. Then, it is judged in step 4 whether or not the incremented receiver number is larger than the number of receivers 102-1-102- ⁇ .
- Incremented receiver numbering power When it is determined that the total number of receivers 102-1 to 102- ⁇ is greater than or equal to ⁇ , the matrix Ml in (Equation 2) is completed, and the process ends.
- FIG. 5 is a flowchart for explaining a method of determining the matrix Ml in (Equation 2) according to the communication method.
- the matrix Ml obtained in (Equation 2) is determined as the matrix M as it is in step 22.
- k l
- “k” indicates the antenna number of the transmitter 101. If it is determined that the current communication method is the diversity method, the number of antennas of the transmitter 101 is one, and therefore, the matrix Ml of j8 rows and ⁇ columns in (Expression 2) is Converted to a 1-by-1 matrix ⁇ .
- the receiver 102 is based on the coefficient of the determined matrix ⁇ .
- Resources to be allocated to ⁇ are determined by the resource allocation unit 206.
- FIG. 6 is a flowchart for explaining a resource allocation method in the resource allocation unit 206.
- step 31 it is determined in step 31 whether there is data to be transmitted.
- a receiver number having data to be transmitted is registered in a list stored in the storage unit 207.
- the receivers 102-1 to 102- ⁇ force S that are the transmission destinations are listed.
- step 32 it is determined in step 32 whether or not the transmitter 101 has sufficient resources (for example, the number of HS-PDSCH, HS-SCCH codes, device power, etc.). If it is determined that there are not enough resources, the processing related to allocation of resources to be transmitted with this TTI ends. [0053] On the other hand, when it is determined that the transmitter 101 has sufficient resources, the processing of the flowchart shown in FIG. 3 is performed among the receivers 102-1 to 102-j8 registered in the list. The receiver 102-1 to 102- ⁇ with the highest coefficient calculated in the above is selected in step 33, and the resource corresponding to the resource coefficient “ ⁇ ” of the selected receiver 102-1 to 102- ⁇ is selected. Assigned at step 34. The resource coefficient “Bi” is calculated using (Equation 4) from the coefficients calculated by (Equation 1) to (Equation 3).
- Equation 4 “ a ” is a coefficient that is each element of the matrix M calculated in (Equation 3).
- the resource coefficient “ ⁇ ” for transmitting data from the antenna 111-1 of the transmitter 101 to the receiver 102-1 is
- FIG. 7 is a diagram illustrating an example of the contents of a table for associating resource coefficients with allocated resources.
- the coefficient ⁇ is an integer value and the resource association is stored, the decimal point of the coefficient “ ⁇ ” calculated as described above is rounded up or rounded down.
- coefficient “ ⁇ ”, Transport Block Size, HS — PDSCH code number, modulation scheme, and Power Off det are stored in association with each other. For example, when the coefficient “ ⁇ ” is “0”, the antenna 111-1 of the transmitter 101
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020117012546A KR101376867B1 (ko) | 2006-03-03 | 2006-11-10 | 다입력 다출력 통신 시스템, 송신기 및 그들에 리소스를 할당하기 위한 방법 |
| CN200680053694.9A CN101395833B (zh) | 2006-03-03 | 2006-11-10 | 多输入多输出通信系统、发射机及其中的分配资源的方法 |
| JP2008502650A JPWO2007099675A1 (ja) | 2006-03-03 | 2006-11-10 | 多入力多出力通信システム、送信機及びそれらにおけるリソース割り当て方法 |
| KR1020127025919A KR101392669B1 (ko) | 2006-03-03 | 2006-11-10 | 다입력 다출력 통신 시스템, 송신기 및 그들에 리소스를 할당하기 위한 방법 |
| EP06823302.2A EP1993224B1 (en) | 2006-03-03 | 2006-11-10 | Multi-input multi-output communication system, transmitter, and resource allocation method in them |
| US12/281,501 US10020858B2 (en) | 2006-03-03 | 2006-11-10 | Multi-input multi-output communication system, transmitter, and method of assigning resources therein |
| US15/897,305 US20180175927A1 (en) | 2006-03-03 | 2018-02-15 | Multi-input multi-output communication system, transmitter, and method of assigning resources therein |
| US18/830,910 US20240429990A1 (en) | 2006-03-03 | 2024-09-11 | Multi-input multi-output communication system, transmitter, and method of assigning resources therein |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006057618 | 2006-03-03 | ||
| JP2006-057618 | 2006-03-03 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/281,501 A-371-Of-International US10020858B2 (en) | 2006-03-03 | 2006-11-10 | Multi-input multi-output communication system, transmitter, and method of assigning resources therein |
| US15/897,305 Continuation US20180175927A1 (en) | 2006-03-03 | 2018-02-15 | Multi-input multi-output communication system, transmitter, and method of assigning resources therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007099675A1 true WO2007099675A1 (ja) | 2007-09-07 |
Family
ID=38458798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/322480 Ceased WO2007099675A1 (ja) | 2006-03-03 | 2006-11-10 | 多入力多出力通信システム、送信機及びそれらにおけるリソース割り当て方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US10020858B2 (ja) |
| EP (1) | EP1993224B1 (ja) |
| JP (3) | JPWO2007099675A1 (ja) |
| KR (3) | KR20080108272A (ja) |
| CN (1) | CN101395833B (ja) |
| WO (1) | WO2007099675A1 (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056306B (zh) * | 2011-01-14 | 2013-10-16 | 大唐移动通信设备有限公司 | 上行共享信道资源分配的方法、装置及一种通信系统 |
| EP2678960A4 (en) * | 2011-02-23 | 2016-08-10 | Zte Corp | MULTIPLE APERIODIC TRANSMISSION OF CHANNEL STATUS INFORMATION IN PUSCH |
| GB201115566D0 (en) * | 2011-09-08 | 2011-10-26 | Imp Innovations Ltd | Signature sequence selection system value, bit loading and energy allocation method and apparatus for muticode single-input single-output and mutiple-output |
| WO2022067523A1 (zh) * | 2020-09-29 | 2022-04-07 | 华为技术有限公司 | 干扰上报的方法与装置 |
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-
2006
- 2006-11-10 WO PCT/JP2006/322480 patent/WO2007099675A1/ja not_active Ceased
- 2006-11-10 JP JP2008502650A patent/JPWO2007099675A1/ja active Pending
- 2006-11-10 US US12/281,501 patent/US10020858B2/en active Active
- 2006-11-10 KR KR1020087024320A patent/KR20080108272A/ko not_active Ceased
- 2006-11-10 CN CN200680053694.9A patent/CN101395833B/zh active Active
- 2006-11-10 EP EP06823302.2A patent/EP1993224B1/en active Active
- 2006-11-10 KR KR1020117012546A patent/KR101376867B1/ko not_active Expired - Fee Related
- 2006-11-10 KR KR1020127025919A patent/KR101392669B1/ko not_active Expired - Fee Related
-
2011
- 2011-11-21 JP JP2011253740A patent/JP5739314B2/ja active Active
-
2014
- 2014-12-15 JP JP2014252849A patent/JP2015092701A/ja active Pending
-
2018
- 2018-02-15 US US15/897,305 patent/US20180175927A1/en not_active Abandoned
-
2024
- 2024-09-11 US US18/830,910 patent/US20240429990A1/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101395833B (zh) | 2015-10-14 |
| US20090054015A1 (en) | 2009-02-26 |
| KR101392669B1 (ko) | 2014-05-07 |
| KR20120125660A (ko) | 2012-11-16 |
| JPWO2007099675A1 (ja) | 2009-07-16 |
| EP1993224A1 (en) | 2008-11-19 |
| KR20110065572A (ko) | 2011-06-15 |
| US20240429990A1 (en) | 2024-12-26 |
| US20180175927A1 (en) | 2018-06-21 |
| KR101376867B1 (ko) | 2014-03-20 |
| KR20080108272A (ko) | 2008-12-12 |
| JP2012090292A (ja) | 2012-05-10 |
| US10020858B2 (en) | 2018-07-10 |
| EP1993224B1 (en) | 2019-07-24 |
| EP1993224A4 (en) | 2015-04-08 |
| JP5739314B2 (ja) | 2015-06-24 |
| JP2015092701A (ja) | 2015-05-14 |
| CN101395833A (zh) | 2009-03-25 |
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