CN102098140A - Data transmission method, equipment and system in uplink MIMO mode - Google Patents
Data transmission method, equipment and system in uplink MIMO mode Download PDFInfo
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- CN102098140A CN102098140A CN2009102254355A CN200910225435A CN102098140A CN 102098140 A CN102098140 A CN 102098140A CN 2009102254355 A CN2009102254355 A CN 2009102254355A CN 200910225435 A CN200910225435 A CN 200910225435A CN 102098140 A CN102098140 A CN 102098140A
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- data stream
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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
- H04B7/0413—MIMO systems
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- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The invention discloses a data transmission method in an uplink multiple-input multiple-output (MIMO) mode. The method comprises the following steps of: receiving a positive acknowledgement (ACK) or a negative acknowledgement (NACK) fed back to an uplink dual-data stream by a Node B; and transmitting a transmission block (TB) corresponding to the ACK or the NACK by adopting a dual-data stream. The invention also discloses an information feedback method in the uplink MIMO mode. The method comprises the following steps of: after receiving the uplink dual-data stream, feeding the ACK or the NACK back for indicating to transmit the TB corresponding to the ACK or the NACK by adopting the dual-data stream. The invention also discloses user equipment, the Node B and a communication system. Downlink channel overhead can be reduced by the data transmission method, the information feedback method, the user equipment, the Node B and the communication system.
Description
Technical field
The present invention relates to communication technical field, relate in particular to data transmission method, equipment and system under the up multiple-input, multiple-output MIMO pattern.
Background technology
Along with the develop rapidly of the communication technology, WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) has obtained extensive studies and application in the world as one of mainstream technology of 3-G (Generation Three mobile communication system).The WCDMA system uplink all is that single antenna sends data basically at present, and in order further to improve the higher uplink bit rate of WCDMA system, reduces propagation delay time, and the up multi-antenna technology that can adopt carries data.
Up employing MIMO (Multiple Input Multiple Output, mimo systems) under the situation of dual data stream scheme, NodeB (Node B, be the base station) to UE (User Equipment, subscriber equipment) two ACK (Positive Acknowledgment of feedback, confirm) or NACK (Negative Acknowledgment, Negative Acknowledgement).Two ACK of base station feedback or NA-CK under the situation that adopts MIMO, be because two E-DPDCH (Enhanced Dedicated PhsicalData Channel is arranged this moment, strengthen Dedicated Physical Data Channel) emission code block (or data flow), and carry out CRC (Cyclic Redundancy Check, cyclic redundancy check (CRC)) respectively.High level can not dispatched up 2 data flow points, such as, according to load calculation access permission and access priority; At this moment, the block length of dual data stream transmission may not wait.
The process of Uplink MIMO transmission is roughly: the bit after E-DPDCH is encoded carries out after scrambling/spread spectrum, obtain dual data stream and multiply by pre-coding matrix, wherein pre-coding matrix is obtained by the channel quality information of downstream feedback, add two DPCCH that follow (Dedicated Physical Control Channel, Dedicated Physical Control Channel) behind the code channel, carry out the power adjustment respectively, launching on the antenna separately.Two ACK of downstream feedback or NACK, the E-DPDCH that can control 2 data flow respectively encodes.
In the prior art, when NodeB passed through down channel feeding back ACK or NACK, signaling consumption was bigger.
Summary of the invention
The embodiment of the invention provides the method for transfer of data under a kind of MIMO pattern, and in order to reduce the down channel expense, this method comprises:
Receive NodeB a ACK or NACK to up dual data stream feedback; And, adopt the dual data stream emission with a transmission block TB of a described ACK or a NACK correspondence.
The embodiment of the invention also provides the method for feedback information under a kind of Uplink MIMO pattern, and in order to reduce the down channel expense, this method comprises:
Receive the up dual data stream that UE sends; And the result according to receiving described up dual data stream feeds back an ACK or a NACK, with the TB of indication UE with a described ACK or NACK correspondence, adopts the dual data stream emission.
The embodiment of the invention also provides a kind of UE, and in order to reduce the down channel expense, this UE comprises:
Receiver module is used to receive a NodeB affirmation ACK or Negative Acknowledgement NACK to up dual data stream feedback;
Sending module is used for a transmission block TB with a described ACK or a NACK correspondence, adopts the dual data stream emission.
The embodiment of the invention also provides a kind of NodeB, and in order to reduce the down channel expense, this NodeB comprises:
Receiver module is used to receive the up dual data stream that UE sends;
Sending module is used for receiving according to described receiver module the result of described up dual data stream, feeds back an ACK or a NACK, with indication UE will a described ACK or NACK correspondence a TB, adopt dual data stream to launch.
The embodiment of the invention also provides a kind of communication system, and in order to reduce the down channel expense, this communication system comprises: above-mentioned UE and NodeB.
In the embodiment of the invention, NodeB only feeds back an ACK or a NACK for up dual data stream, with the TB of indication UE with a described ACK or NACK correspondence, the emission of employing dual data stream, be different from the prior art NodeB to 2 ACK of UE feedback or NACK, can reduce the down channel expense.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the data transmission method schematic flow sheet under the up multiple-input, multiple-output MIMO pattern in the one embodiment of the invention;
Fig. 2 is the data transmission method schematic flow sheet under the Uplink MIMO pattern in the another embodiment of the present invention;
Fig. 3 is the method flow schematic diagram of the feedback information under the Uplink MIMO pattern in the one embodiment of the invention;
Fig. 4 is the structural representation of UE in the embodiment of the invention;
Fig. 5 is the structural representation of another UE in the embodiment of the invention;
Fig. 6 is the structural representation of NodeB in the embodiment of the invention;
Fig. 7 is the structural representation of communication system in the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, the embodiment of the invention is described in further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
As shown in Figure 1, in the one embodiment of the invention, the data transmission method under the up multiple-input, multiple-output MIMO pattern can comprise:
An ACK or a NACK that step 101, reception NodeB feed back up dual data stream;
In the present embodiment, NodeB is to a up dual data stream ACK of feedback or a NACK, is different from that NodeB can reduce the down channel expense to 2 ACK of UE feedback or NACK in the prior art.In addition, be different from when feeding back two ACK or NACK in the prior art, the code block of two E-DPDCH emissions need carry out one time CRC respectively, in the invention process since dual data stream from 1 TB piece, therefore only need carry out CRC 1 time, NodeB side feedback processing is simpler, and feedback speed is faster.
During concrete enforcement, can determine data to be sent according to an ACK or a NACK of receiving; Data to be sent are encoded, with a TB obtaining behind the coding as a TB of a described ACK or a NACK correspondence.Wherein, coding method can have multiple, such as interweaving etc.
During concrete enforcement, each circuit-switched data in the step 102 in the dual data stream flows the size of data that sends and can equate, also can be unequal, and for example, a stream sends
(BlockSize: block length), another flows transmission to bit
Perhaps, a stream sends
Bit, another flows transmission
Bit.
In the present embodiment, the size of data that each circuit-switched data stream in the dual data stream sends can be half of described TB block size, that is: 2 stream each send
Bit, follow-up when carrying out the power adjustment, dual data stream can be carried out the constant power emission; Like this, only be used as a power control (power control), can adjust 2 data flow.Thereby the complexity that can further reduce the base band demodulating algorithm and go up layer scheduling algorithm.
The size of data that sends when each circuit-switched data stream of dual data stream is a half of described TB size, and step 102 is specifically as follows: dual data stream is carried out launching on antenna separately respectively after constant power adjusts.Certainly, before dual data stream is carried out the power adjustment, also may strengthen Dedicated Physical Data Channel E-DPDCH coding, scrambling/spread spectrum, multiply by pre-coding matrix, add two processing of following such as special used for physical control channel DPCCH code channel.
As shown in Figure 2, describe in the another embodiment of the present invention method flow schematic diagram of transfer of data under the Uplink MIMO pattern in detail.Among Fig. 2, determine data to be sent according to the ACK or the NACK of NodeB feedback, carry out encoding process to sent data, obtain a transmission block TB, the following adopted dual data stream sends this transmission block, and each flows transmission
Bit.
Among Fig. 2, dual data stream promptly first transmission block (Primary transport block) and second transmission block (Secondary transport block) through E-DPDCH coding, scrambling/spread spectrum (Spread/scramble), multiply by pre-coding matrix (Weight Generation), after adding two special used for physical control channel DPCCH code channels of following, carry out constant power adjustment (Power Control/Amplitude), and go up emission at antenna (Ant) separately respectively.Wherein, first transmission block: under the MIMO pattern, transmit (Primary:Always transmitted by UE in MIMO mode) by UE; Second transmission block: if under the MIMO pattern, exist equally by UE transmission (Secondary:Optionally transmitted by UE in MIMO mode).Pre-coding matrix can be determined (Determine weight info message from the downlink) by downlink feedback information.
Can learn by Fig. 2, in the present embodiment, the size of data that each circuit-switched data stream in the dual data stream sends is half of described TB block size, follow-up dual data stream is carried out the constant power adjustment, do not wait with prior art dual data stream power and to compare, can reduce the complexity of base band demodulating algorithm and last layer scheduling algorithm, and reduce the expense of down channel feeding back ACK.
One embodiment of the invention also provides the method for the feedback information under a kind of Uplink MIMO pattern.As shown in Figure 3, this method can comprise:
The up dual data stream that step 301, reception UE send;
Step 302, according to the result who receives up dual data stream, feed back an ACK or a NACK, with indication will a described ACK or NACK correspondence a TB, the employing dual data stream is launched.
In the present embodiment, the result according to receiving up dual data stream feed back an ACK or NACK, is different from that NodeB feeds back 2 ACK or NACK to UE in the prior art, can reduce the down channel expense.In addition, when feeding back two ACK or NACK in the prior art, two E-DPDCH emission code blocks need carry out one time CRC respectively, in this enforcement since the data of dual data stream from 1 TB piece, therefore only need carry out CRC 1 time, make NodeB side feedback processing simpler, feedback speed is faster.
Wherein, a described ACK or NACK size of data that can further indicate each circuit-switched data stream of described dual data stream to send is half of described TB block size.
Wherein, after a described ACK or a NACK can further indicate described UE that dual data stream is carried out the constant power adjustment, on antenna separately, launch respectively.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, can comprise all or part of step in the foregoing description method, described storage medium can comprise: ROM, RAM, disk, CD etc.
As shown in Figure 4, one embodiment of the invention provides a kind of UE, and it can comprise:
As shown in Figure 5, UE shown in Figure 4 can also comprise except receiver module 401 and sending module 402:
When described sending module 402 adopted dual data stream to launch TB of a described ACK or NACK correspondence, the size of data that each circuit-switched data stream sends can be half of described TB block size.
Wherein, described sending module 402 can specifically be used for: after dual data stream is carried out the constant power adjustment, launch on antenna separately respectively.
As shown in Figure 6, a kind of NodeB that provides for one embodiment of the invention.This NodeB can comprise:
A described ACK or a NACK can further indicate, and the size of data that each the circuit-switched data stream in the dual data stream of emission sends is half of described TB block size.
A described ACK or a NACK can further indicate, and dual data stream is carried out launching on antenna separately respectively after constant power adjusts.
As shown in Figure 7, a communication system providing of one embodiment of the invention can comprise:
A UE701 and a NodeB702.Wherein, this UE701 can be Fig. 4 or UE shown in Figure 5; This NodeB702 can be NodeB shown in Figure 6.
In the present embodiment, NodeB702 feeds back an ACK or a NACK after the up dual data stream that receives the UE701 transmission, with the TB of indication with a described ACK or NACK correspondence, adopts the dual data stream emission.Like this, can reduce the down channel expense.
In the present embodiment, when UE701 adopted dual data stream to send TB of a described ACK or NACK correspondence, the size of data that each circuit-switched data stream sends was half of described TB block size; And dual data stream is carried out the constant power adjustment, do not wait with prior art dual data stream power and compare, the complexity that can reduce the base band demodulating algorithm and go up layer scheduling algorithm.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. the method for transfer of data under the up multiple-input, multiple-output MIMO pattern is characterized in that this method comprises:
Receive base station an affirmation ACK or Negative Acknowledgement NACK to up dual data stream feedback;
With a transmission block TB of a described ACK or a NACK correspondence, adopt the dual data stream emission.
2. the method for claim 1 is characterized in that, also comprises:
According to a described ACK or a NACK, determine data to be sent;
Described data to be sent are encoded, with a TB obtaining behind the coding as the described TB of a described ACK or a NACK correspondence.
3. the method for claim 1 is characterized in that, with a TB of a described ACK or a NACK correspondence, adopts the dual data stream emission, comprising:
The size of data that each circuit-switched data stream in the described dual data stream sends is half of described TB size.
4. method as claimed in claim 3 is characterized in that, with a TB of a described ACK or a NACK correspondence, adopts the dual data stream emission, comprising:
Described dual data stream is carried out launching on antenna separately respectively after constant power adjusts.
5. the method for feedback information under the Uplink MIMO pattern is characterized in that this method comprises:
Receive the up dual data stream that user equipment (UE) sends;
Result according to receiving described up dual data stream feeds back an ACK or a NACK, to indicate the TB of described UE with a described ACK or NACK correspondence, adopts the dual data stream emission.
6. method as claimed in claim 5 is characterized in that, a described ACK or NACK further size of data that sends of each circuit-switched data stream in the described dual data stream of indication are half of described TB block size.
7. method as claimed in claim 6 is characterized in that, after a described ACK or a NACK further indicate described UE that described dual data stream is carried out the constant power adjustment, launches on antenna separately respectively.
8. a subscriber equipment is characterized in that, comprising:
Receiver module is used to receive a base station affirmation ACK or Negative Acknowledgement NACK to up dual data stream feedback;
Sending module is used for a transmission block TB with a described ACK or a NACK correspondence, adopts the dual data stream emission.
9. subscriber equipment as claimed in claim 8 is characterized in that, also comprises:
Determination module is used for determining data to be sent according to a described ACK or a NACK;
Coding module is used for described data to be sent are encoded, with a TB obtaining behind the coding as the described TB of a described ACK or a NACK correspondence.
10. subscriber equipment as claimed in claim 8 is characterized in that, with a TB of a described ACK or a NACK correspondence, adopts the dual data stream emission, comprising:
The size of data that each circuit-switched data stream in the described dual data stream sends is half of described TB block size.
11. subscriber equipment as claimed in claim 10 is characterized in that, described sending module is further used for:
Described dual data stream is carried out launching on antenna separately respectively after constant power adjusts.
12. a base station is characterized in that, this base station comprises:
Receiver module is used to receive the up dual data stream that user equipment (UE) sends;
Sending module is used for receiving according to described receiver module the result of described up dual data stream, feeds back an ACK or a NACK, to indicate the TB of described UE with a described ACK or NACK correspondence, adopts the dual data stream emission.
13. base station as claimed in claim 12 is characterized in that, a described ACK or NACK further size of data that sends of each circuit-switched data stream in the described dual data stream of indication are half of described TB block size.
14. base station as claimed in claim 13 is characterized in that, after a described ACK or a NACK further indicate described UE that described dual data stream is carried out the constant power adjustment, launches on antenna separately respectively.
15. a communication system is characterized in that, this communication system comprises claim 8 to any described subscriber equipment of claim 11, and claim 12 is to any described base station of claim 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102254355A CN102098140A (en) | 2009-12-10 | 2009-12-10 | Data transmission method, equipment and system in uplink MIMO mode |
| PCT/CN2010/079451 WO2011069428A1 (en) | 2009-12-10 | 2010-12-06 | Method, device and system for data transmission in uplink multiple input multiple output mode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102254355A CN102098140A (en) | 2009-12-10 | 2009-12-10 | Data transmission method, equipment and system in uplink MIMO mode |
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| CN102098140A true CN102098140A (en) | 2011-06-15 |
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| WO (1) | WO2011069428A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088354A1 (en) * | 2018-11-02 | 2020-05-07 | 索尼公司 | User devices, wireless communication methods, and computer readable storage medium |
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| CN101453309A (en) * | 2007-12-03 | 2009-06-10 | 大唐移动通信设备有限公司 | Method for supporting double flow transmission and apparatus therefor |
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| CN100542131C (en) * | 2003-06-18 | 2009-09-16 | 日本电信电话株式会社 | Radio packet communication method and wireless packet communication apparatus |
| KR100586886B1 (en) * | 2004-08-13 | 2006-06-08 | 삼성전자주식회사 | WLAN communication method and apparatus |
| DK2087630T3 (en) * | 2006-10-02 | 2017-01-30 | Nokia Technologies Oy | DEVICE, PROCEDURE AND COMPUTER PROGRAM PRODUCT WITH HYBRID ARQ FEEDBACK FOR HSDPA MIMO |
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| CN101282190A (en) * | 2007-04-02 | 2008-10-08 | 中兴通讯股份有限公司 | Method for multiplexing scheduling and non-scheduling service transmission in high speed upstream packet access |
| CN101453309A (en) * | 2007-12-03 | 2009-06-10 | 大唐移动通信设备有限公司 | Method for supporting double flow transmission and apparatus therefor |
| CN101309522A (en) * | 2008-06-23 | 2008-11-19 | 中兴通讯股份有限公司 | Uplink reply message feedback method and mobile terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088354A1 (en) * | 2018-11-02 | 2020-05-07 | 索尼公司 | User devices, wireless communication methods, and computer readable storage medium |
| US12149368B2 (en) | 2018-11-02 | 2024-11-19 | Sony Group Corporation | User devices, wireless communication methods, and computer readable storage medium |
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