WO2010124445A1 - 码本、码本生成方法、基于码本的上行发射方法及设备 - Google Patents
码本、码本生成方法、基于码本的上行发射方法及设备 Download PDFInfo
- Publication number
- WO2010124445A1 WO2010124445A1 PCT/CN2009/071502 CN2009071502W WO2010124445A1 WO 2010124445 A1 WO2010124445 A1 WO 2010124445A1 CN 2009071502 W CN2009071502 W CN 2009071502W WO 2010124445 A1 WO2010124445 A1 WO 2010124445A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- codebook
- rank
- elements
- network device
- data transmission
- Prior art date
Links
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
- H04B7/06—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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03891—Spatial equalizers
- H04L25/03898—Spatial equalizers codebook-based design
- H04L25/0391—Spatial equalizers codebook-based design construction details of matrices
-
- 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
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/262—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Definitions
- Codebook Codebook, codebook generation method, codebook-based uplink transmission method and device
- the present invention relates to the field of communications, and in particular, to a codebook, a codebook generation method, a codebook-based uplink transmission method, and a device.
- the codebook-based uplink and downlink precoding method is a very critical technology.
- the design of the uplink and downlink codebook can greatly improve the performance of the uplink and downlink.
- Embodiments of the present invention provide a codebook, a codebook generation method, a codebook-based uplink transmission method, and a device, which are capable of reducing power loss of a power amplifier.
- a codebook comprising one or any combination of the following:
- a codebook creation method including:
- One or any combination of the primes, the codebook size N and the symbol set ⁇ are determined, wherein the ⁇ , ⁇ ,
- 1,
- a codebook based uplink transmission method includes:
- the elements of include one or any combination of the following:
- the uplink transmit amplifier power backoff amount is determined according to the modulation mode, the rank of the data transmission and the precoded codeword, and the locally stored codebook, and is transmitted.
- a codebook based uplink transmission method includes:
- the precoding codeword is a matrix arbitrarily selected from a locally stored codebook, wherein an element of the codebook includes one of the following or random combination:
- the modulation scheme, the rank of the data transmission, and the precoding codeword are transmitted to the user equipment.
- a user equipment including:
- a receiving unit configured to receive a modulation mode, a rank of data transmission, and a precoding codeword sent by the network device, where the precoding codeword is a matrix arbitrarily selected from a codebook stored by the network device,
- the elements of the codebook include: any one of
- a determining unit configured to determine an uplink transmit amplifier power backoff amount according to a modulation mode, a rank of the data transmission, and a precoding codeword, and the codebook stored by the storage unit;
- a transmitting unit configured to transmit according to the uplink transmit amplifier power backoff amount.
- a network device including;
- a selecting unit configured to select a modulation mode, a rank of the data transmission, and a precoding codeword, wherein the precoding codeword is a codebook c stored from the storage unit.
- a sending unit configured to send the modulation mode, the rank of the data transmission, and the precoding codeword to the user equipment.
- a codebook creation device comprising: Oh,
- the codebook, the codebook generating method, the codebook-based uplink transmitting method and the device provided by the embodiment of the present invention propose a new codebook, which can reduce the uplink power amplifier by using the codebook for precoding. Power loss.
- FIG. 1 is a flowchart of a codebook-based uplink transmission method according to an embodiment of the present invention
- FIG. 2 is a flowchart of a codebook-based uplink transmission method according to another embodiment of the present invention
- FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
- FIG. 6 is a schematic structural diagram of a codebook creation apparatus according to an embodiment of the present invention. detailed description
- the codebook-based uplink transmission method provided by the embodiment of the present invention, as shown in FIG. 1, the method includes:
- S1 0 receives a modulation mode, a rank of data transmission, and a precoding codeword transmitted from the network device, where the precoding codeword is a matrix arbitrarily selected from a codebook stored by the network device, wherein the codebook c. .
- the elements of include one or any combination of the following:
- S1 02 Determine, according to a modulation mode, a rank of the data transmission, a precoding codeword, and a locally stored codebook, an uplink transmit amplifier power backoff amount, and transmit.
- the locally saved codebook may be locally calculated, or may be sent by a network device, or may be directly set into the user equipment.
- a new codebook is used, and the design of the codebook is utilized, which can reduce the power backoff of the uplink transmit amplifier and reduce the amount of power of the uplink transmit amplifier. Power loss of the power amplifier.
- a codebook-based uplink transmission method includes the following steps:
- the S20K selects a modulation mode, a rank of the data transmission, and a precoding codeword, where the precoding codeword is a matrix arbitrarily selected from the locally stored codebook, where the elements of the codebook include one of the following or random combination:
- S202 Send the modulation mode, the rank of the data transmission, and the precoding codeword to the user equipment.
- the locally saved codebook can be calculated locally or directly into the network device.
- a new codebook C ⁇ is used, and the design of the codebook is utilized, which can reduce the power backoff of the uplink transmit amplifier and reduce the amount of power of the uplink transmit amplifier. Power loss of the power amplifier.
- a codebook-based uplink transmission method includes the following steps:
- S30 The user equipment sends a measurement reference signal to the network device.
- the network device receives the measurement reference signal sent by the user equipment, performs channel measurement according to the measurement reference signal, and obtains a channel measurement result.
- the network device selects a modulation mode, a rank of the data transmission, and a pre-coded codeword according to the channel measurement result, where the pre-encoded codeword is a matrix arbitrarily selected from the codebook stored by the network device;
- the network device sends the modulation mode, the rank of the data transmission, and the precoding codeword to the user equipment.
- the user equipment receives the modulation mode from the network device, the rank of the data transmission, and the precoding codeword, and the locally saved codebook determines the uplink transmit amplifier power backoff amount and transmits.
- a new codebook C ⁇ is used, and the design of the codebook is utilized, which can reduce the power backoff of the uplink transmit amplifier and reduce the amount of power of the uplink transmit amplifier. Power loss of the power amplifier.
- Embodiment 1 The uplink precoding method provided by the first embodiment of the present invention is described by taking a QPSK (Quadature Phase Shift Keying) modulation mode as an example, but the embodiment of the present invention is not limited to the QPSK modulation mode. Other modulation methods, such as 8PSK, may also be employed in the embodiments of the invention. Including: Any one of QPSK (Quadature Phase Shift Keying) modulation mode as an example, but the embodiment of the present invention is not limited to the QPSK modulation mode. Other modulation methods, such as 8PSK, may also be employed in the embodiments of the invention. Including: Any one of
- the codebook includes the following matrix:
- the codebook can be obtained by offline calculation using a computer according to the above method, or the codebook C can be correspondingly calculated according to the above method in a network device or user equipment with strong capabilities.
- the power gain of the codebook provided by the embodiment of the present invention is 0.6.
- this embodiment further defines any one of the matrixes in the codebook as the Rank 1 codebook, it is optimized to obtain
- the network device may be, for example, a base station.
- the user equipment provided by the embodiment of the present invention includes: a receiving unit 401, a storage unit 402, a determining unit 403, and a transmitting unit 404.
- the receiving unit 401 receives a modulation mode, a rank of data transmission, and a precoding codeword sent by the network device, where the precoding codeword is a matrix arbitrarily selected from a codebook stored by the network device, where the codebook C ⁇
- the elements include one or any combination of the following:
- the storage unit 402 is configured to store the codebook C. RT ; a determining unit 403, configured to determine, according to a modulation mode, a rank of the data transmission, a precoding codeword, and the codebook stored by the storage unit 402, an uplink transmit amplifier power backoff amount;
- the transmitting unit 404 is configured to transmit according to the uplink transmit amplifier power backoff amount.
- the user equipment provided by the embodiment of the present invention can determine a new uplink transmit amplifier power backoff amount according to the newly proposed codebook C ⁇ , and the uplink transmit amplifier power backoff amount is smaller than the backoff amount of the existing codebook. Power loss can be reduced.
- the user equipment may further include:
- a calculating unit 405 configured to calculate a codebook ⁇ , and store the codebook in the storage unit
- the receiving unit 401 is further configured to receive the codebook C ⁇ and store the codebook in the storage unit 402.
- the network device provided by the embodiment of the present invention includes: a selecting unit 501, a storage unit 502, and a sending unit 503.
- the selecting unit 501 is configured to select a modulation mode, a rank of the data transmission, and a precoding codeword, where the precoding codeword is a matrix arbitrarily selected from the codebook stored by the storage unit 502, the codebook C. .
- the elements of include one or any combination of the following:
- the storage unit 502 is configured to store the codebook C ⁇ ;
- the sending unit 503 is configured to send the modulation mode, the rank of the data transmission, and the precoding codeword to the user equipment.
- the network device provided by the embodiment of the present invention stores a new codebook C ⁇ .
- the user equipment can determine a new uplink transmit amplifier power backoff amount, and the uplink transmit amplifier power backoff amount is larger than the existing code. The amount of back-off is small, so power loss can be reduced.
- the foregoing network device may further include:
- a calculating unit 504 configured to calculate a codebook C..., and store the codebook C... in the storage unit
- the receiving unit 505 is configured to receive the codebook C. Pt , and codebook C.
- the pt is stored in the storage unit 502.
- the codebook creation device provided by the embodiment of the present invention, as shown in FIG. 6, includes: an acquisition module 601,
- the codebook creation device provided by the embodiment of the present invention can generate a new codebook.
- the user equipment can determine a new uplink transmit amplifier power backoff amount, and the uplink transmit amplifier power backoff ratio is The amount of back-off of the codebook is small, so power loss can be reduced.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2009/071502 WO2010124445A1 (zh) | 2009-04-27 | 2009-04-27 | 码本、码本生成方法、基于码本的上行发射方法及设备 |
CN200980147389.XA CN102239648B (zh) | 2009-04-27 | 2009-04-27 | 基于码本的上行发射方法及设备 |
JP2012507569A JP5472884B2 (ja) | 2009-04-27 | 2009-04-27 | コードブック、コードブック生成方法、アップリンク送信方法、およびコードブックに基づく機器 |
US13/271,939 US8351540B2 (en) | 2009-04-27 | 2011-10-12 | Codebook, codebook creating method, uplink transmission method and equipment based on the codebook |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2009/071502 WO2010124445A1 (zh) | 2009-04-27 | 2009-04-27 | 码本、码本生成方法、基于码本的上行发射方法及设备 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/271,939 Continuation US8351540B2 (en) | 2009-04-27 | 2011-10-12 | Codebook, codebook creating method, uplink transmission method and equipment based on the codebook |
Publications (1)
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WO2010124445A1 true WO2010124445A1 (zh) | 2010-11-04 |
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Family Applications (1)
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PCT/CN2009/071502 WO2010124445A1 (zh) | 2009-04-27 | 2009-04-27 | 码本、码本生成方法、基于码本的上行发射方法及设备 |
Country Status (4)
Country | Link |
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US (1) | US8351540B2 (zh) |
JP (1) | JP5472884B2 (zh) |
CN (1) | CN102239648B (zh) |
WO (1) | WO2010124445A1 (zh) |
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CN102624497B (zh) * | 2011-01-30 | 2016-05-25 | 华为技术有限公司 | 码本生成方式的确定方法和装置 |
CN103782523B (zh) * | 2011-07-01 | 2017-08-01 | 英特尔公司 | 用于均匀圆形阵列(uca)的结构化码本 |
JPWO2016047409A1 (ja) * | 2014-09-25 | 2017-07-20 | 株式会社Nttドコモ | 基地局及びユーザ装置 |
JP6426844B2 (ja) * | 2014-11-21 | 2018-11-21 | 華為技術有限公司Huawei Technologies Co.,Ltd. | 情報伝送方法、装置、及びデバイス |
CN105827289A (zh) * | 2016-03-15 | 2016-08-03 | 上海交通大学 | 一种广义空间调制***的有限反馈预编码方法 |
WO2017183845A1 (ko) * | 2016-04-19 | 2017-10-26 | 엘지전자 주식회사 | Ncma에 기반한 상향링크 통신 방법 및 이를 위한 장치 |
WO2018196230A1 (zh) * | 2017-04-25 | 2018-11-01 | 华为技术有限公司 | 上行多天线信号传输方法、相关设备及*** |
US20190394733A1 (en) * | 2018-06-20 | 2019-12-26 | Mediatek Inc. | Ul transmission utilizing full tx power at ue |
JP7175793B2 (ja) | 2019-02-19 | 2022-11-21 | 大陽日酸株式会社 | 充填塔及び充填物 |
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- 2009-04-27 WO PCT/CN2009/071502 patent/WO2010124445A1/zh active Application Filing
- 2009-04-27 CN CN200980147389.XA patent/CN102239648B/zh active Active
- 2009-04-27 JP JP2012507569A patent/JP5472884B2/ja active Active
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2011
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Also Published As
Publication number | Publication date |
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CN102239648B (zh) | 2015-12-02 |
JP5472884B2 (ja) | 2014-04-16 |
CN102239648A (zh) | 2011-11-09 |
US20120027125A1 (en) | 2012-02-02 |
JP2012525096A (ja) | 2012-10-18 |
US8351540B2 (en) | 2013-01-08 |
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