CN102685038B - A kind of method and system for demodulating the binding demodulation of pilot physical resource block - Google Patents
A kind of method and system for demodulating the binding demodulation of pilot physical resource block Download PDFInfo
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- CN102685038B CN102685038B CN201110065556.5A CN201110065556A CN102685038B CN 102685038 B CN102685038 B CN 102685038B CN 201110065556 A CN201110065556 A CN 201110065556A CN 102685038 B CN102685038 B CN 102685038B
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- 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
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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Abstract
The invention discloses a kind of method and system for demodulating the binding demodulation of pilot physical resource block, for solving the great limit frequency diversity gain of PRB binding meetings, and under Fallback patterns, the gain that PRB is bundled in high order transmission does not substantially embody, frequency diversity gain can be also influenceed, so that the problem of the reliability decrease of Fallback patterns.Inventive network side indicates whether receiving side carries out joint channel estimation and demodulation according to PRG by configuring transmission mode, descending control information format and feedback model.The present invention is under Normal and Fallback patterns, according to different descending control information formats, the adjustment channel estimation mode of dynamic flexible, so as to make full use of the frequency diversity gain of the channel estimation gains of PRB bindings and No PRB bindings, improve the reliability and average throughput of system.
Description
Technical field
The present invention relates to Long Term Evolution advanced system (Long term evolution advanced system, LTE-
Advanced), specifically, be related in LTE-Advanced based on demodulation pilot physical resource block binding demodulation method and
System.
Background technology
In order to be measured to the quality of channel and the data symbol of reception is demodulated in LTE Release8/9
CRS (Common Reference Signal, public reference signal) is devised, UE (UserEquipment, user equipment) can
To carry out the measurement of channel by CRS, so as to determine UE progress cell reselections and be switched to Target cell, and in UE connection shapes
State carries out the measurement of channel quality, and when disturbing rank higher, physical layer can be connected by high-rise related Radio Link and lost
Signaling is lost to disconnect.In order to further improve the average availability of frequency spectrum of cell and cell edge spectrum utilization in LTER10
The throughput of rate and each UE, respectively define two kinds of reference signals：CSI-RS (channel state information reference signals) and
DMRS (demodulated reference signal), wherein, CSI-RS is used for the measurement of channel, and can calculate UE by the measurement to CSI-RS needs
PMI (Precoding Matrix Indicator, pre-coding matrix index), the CQI (Channel to be fed back to eNB
Quality Indicator, channel quality information instruction) and RI (RankIndicator, order instruction).CSI-RS is in time domain
Distribution with frequency domain is all sparse, and to be ensured only small comprising servicing in a RB (Resource Block, subframe)
Each one CSI-RS of antenna port in area pilot density, and it is used as in time domain CSI-RS cycle with 5ms multiple.It is dilute
Thin CSI-RS can support the configuration of the antennas of eNodeB 8, and advantageously support and face cell measurement configuration.In 3GPP
CSI-RS pilot tone mapping pattern is passed through in 61bis standards meetings, it is specified that different districts and same cell different antennae
Between pilot tone mapping pattern.
In previous discussion, it is contemplated that the accuracy of DMRS channel estimations, it is desirable to consider when being demodulated using DMRS
The binding (Bundling) of multiple PRB (Precoding Resource Block, precoding resource block) is carried out, so as to more
Individual PRB joints carry out channel estimation, so as to improve the accuracy of channel estimation, are used by general debate with PRG
(Precoding Resource Group, precoding resource group) carries out PRB binding, the PRG size such as institute of table 1 for unit
Show.
Table 1
By the emulation of each company of meeting, larger channel estimation accuracy gain can be brought really using PRB, from
And improve the average throughput of system, and the gain of this handling capacity eNodeB to UE by the way of SU-MIMO it is high
Order is more obvious when transmitting.In view of in TDD and open loop MIMO (Multiple-Input Multiple-Out-put, multi input
Multi output) mode under to utilize frequency diversity gain, precoding is carried out based on subcarrier or independent PRB.Finally examine
Determined on the basis of the expense and performance gain of the signaling of worry when using sending mode 9 (TM9), if to be configured with PMI/RI anti-by UE
Present, then UE will carry out PRB Bundling to carry out joint channel estimation and demodulation to the DMRS on multiple PRBs.
Two kinds of descending control information formats (DCI), wherein DCI are configured with discussion TM9 modes by newest meeting
Format 1A are a kind of Fallback patterns of TM9, and the transmission point of the demodulation based on CRS is supported under this DCI Format 1A
(TxD) mode of collection, and work as and be operated in Multicast Broadcast Single Frequency Network (Multicast Broadcast Single Frequency
Network, MBSFN) subframe when can send data using port 7.
The problem of both integrate, certainly will brought is exactly that Fallback patterns are dynamic configurations, that is, works as base station
(eNodeB) find that some time point channel is drastically deteriorated, or CQI and PMI feedback it is inaccurate when, will consider to utilize
Fallback patterns transmit number, on the one hand Fallback patterns can be used for sending some data messages, on the one hand can be with
Wireless heterogeneous networks (Radio Resource Control, RRC) signaling is sent, transmission mould is reconfigured so as to notify UE to need
Formula, at this moment the accuracy gesture of RRC signaling it has to be warranted that.If be at this moment operated under TM9, and UE previously it has been semi-statically configured
Need to feed back PMI/CQI, at this moment UE is needed to carry out joint channel estimation, if be at this moment operated under DCI Format 1A, UE is used
CRS is to be not necessarily to be limited with the PRB Bundling of the above to demodulate, and can so reduce UE implementation flexibility, and
UE implementation complexity is added, because UE needs extra to judge whether to need Bundling.If at this moment it is operated in MBSFN
Subframe, due to data or signaling can only be sent with port 7, so being to be impermissible for VRB (Virtual in this case
Resource Block, virtual resource blocks) distributed (distributed) Physical Resource Block of use to virtual resource blocks this
Kind mapping mode, so (Localized) mode based on centralization can only be used to carry out Physical Resource Block and virtually provide
Mapping between source block, and this modes of 1A are to distribute resource using resource distribution mode type 2, will certainly so be made
Multiple resources that a UE must be given are continuous.Certainly will will be according to the big of PRB Bundling so as to cause to be operated under 1A UE
It is small to carry out multiple PRB joint channel estimations.This mode will certainly influence UE demodulation performance, because in Fallback patterns
Under to make full use of frequency diversity gain, and due to PMI/CQI inaccuracy, to travel through as far as possible at possible PMI
Reason, so as to obtain the diversity gain of codebook stage.Due to PRB Bundling can great limit frequency diversity gain, and
Fallback patterns only send number using port 7, and such PRB Bundling are not obvious in the gain that high order is transmitted
Embodiment, frequency diversity gain is also affected, so that the reliability decrease of Fallback patterns.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of method for demodulating the binding demodulation of pilot physical resource block
And system, for solving the great limit frequency diversity gain of PRB binding meetings, and under Fallback patterns, PRB is bundled in
The gain of high order transmission does not substantially embody, and frequency diversity gain can be also influenceed, so that the reliability of Fallback patterns
The problem of decline.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of method for demodulating the binding demodulation of pilot physical resource block, this method include：
Network side by configure transmission mode, descending control information format and feedback model indicate receiving side whether according to
Precoding resource group PRG carries out joint channel estimation and demodulation.
Further, the transmission mode that network side configuration receiving side uses is transmission mode 9；The network side configuration receives
Side needs feeding back precoding matrix index PMI/ channel quality information instructions CQI in feedback；The network side is using being configured
Descending control information format come whether recessive instruction receiving side according to precoding resource group PRG carries out joint channel estimation
And demodulation.
Further, whether the instruction receiving side according to precoding resource group PRG carries out joint channel estimation reconciliation
Tune is specially：
Indicate that receiving side carries out channel estimation and demodulation using demodulation pilot tone or using public guide frequency, and indicate that receiving side is pressed
According to or according to precoding resource group PRG be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block.
Further, the network side utilize configured descending control information format come recessive instruction receiving side whether
It is to carry out joint channel estimation reconciliation accord method according to precoding resource group PRG：
The network side uses solution when being demodulated using descending control information format 2C come recessive instruction receiving side
Adjust pilot tone to carry out channel estimation and demodulation, and indicate that receiving side will be that unit carries out multiple things according to precoding resource group PRG
Manage joint channel estimation and the demodulation of resource block.
Further, the network side utilize configured descending control information format come recessive instruction receiving side whether
It is to carry out joint channel estimation reconciliation accord method according to precoding resource group PRG：
The network side configuration is connect in conventional Normal subframes using descending control information format 1A come recessive instruction
Receive side and channel estimation and demodulation are carried out using public guide frequency when being demodulated, and indicate that receiving side need not be according to precoding
Resource group PRG is joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block.
Further, the network side utilize configured descending control information format come recessive instruction receiving side whether
It is to carry out joint channel estimation reconciliation accord method according to precoding resource group PRG：
Network side configuration in Multicast Broadcast Single Frequency Network MBSFN sub-frame, using descending control information format 1A come
Recessive instruction receiving side carries out channel estimation and demodulation when being demodulated using demodulation pilot tone, and indicates that receiving side is not required to
To be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to precoding resource group PRG.
Based on the embodiment of the present invention, the present invention also proposes a kind of system for demodulating the binding demodulation of pilot physical resource block, bag
Network side and receiving side are included,
Network side, for being to indicate receiving side by configuring transmission mode, descending control information format and feedback model
It is no to carry out joint channel estimation and demodulation according to precoding resource group PRG；
Receiving side, determine whether to provide according to precoding for receiving the configuration of network side, and according to the configuration of network side
Source group PRG carries out joint channel estimation and demodulation.
The present invention is under Normal and Fallback patterns, according to different descending control information formats, dynamic flexible
Channel estimation mode is adjusted, so as to make full use of the frequency diversity gain of the channel estimation gains of PRB bindings and No-PRB bindings,
Improve the reliability and average throughput of system.
Brief description of the drawings
Fig. 1 is the demodulation method flow chart of demodulation pilot physical resource block binding provided by the invention；
Fig. 2 is the demodulation method flow chart for the demodulation pilot physical resource block binding that the specific embodiment of the invention provides.
Embodiment
It is by the following examples and referring to the drawings, right for the object, technical solutions and advantages of the present invention are more clearly understood
The present invention is further described.
Fig. 1 is the demodulation method flow chart of demodulation pilot physical resource block binding provided by the invention, and this method includes：
The transmission mode 9 that step 101, network side configuration receiving side use, configuration receiving side feed back PMI/ in feedback
CQI, and whether the descending control information format by configuring is estimated come recessive instruction receiving side according to PRG to carry out combined channel
Meter and demodulation；
Step 102, receiving side receive and the configuration on transmission mode and feedback model of application network side, and according to net
Network side configuration descending control information format come determine using demodulation pilot tone or using public guide frequency carry out channel estimation and
Demodulation, and determine according to or do not carried out according to PRG for unit joint channel estimation and the demodulation of multiple Physical Resource Block.
Fig. 2 is the refinement stream of the demodulation method for the demodulation pilot physical resource block binding that a specific embodiment of the invention provides
Cheng Tu, detailed step are as follows：
The transmission mode 9 that step 201, network side configuration receiving side use, configuration receiving side feed back PMI/ in feedback
CQI, and descending control information format is configured, configuration is then sent to receiving side；
The descending control information format includes descending control information format 2C or descending control information format 1A；
The network side refers to macro base station (Macro eNodeB), micro-base station (Pico), relay station (Relay), Home eNodeB
(Home eNodeB) etc., described receiving side refer to UE, micro-base station (Pico), relay station (Relay), Home eNodeB (Home
ENodeB) etc.；
Step 202, receiving side receive and the configuration of application network side；
Step 203, receiving side carry out Physical Downlink Control Channel blind check to subframe, when the Downlink Control Information that blind check obtains
When form is descending control information format 2C (DCI Format 2C), step 204 is performed, when the descending control letter that blind check obtains
When breath form is descending control information format 1A, step 205 is performed；
Step 204, receiving side use when being demodulated demodulates pilot tone DMRS progress channel estimations and demodulation, and according to
PRG is joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block.
Step 205, receiving side are judged the subframe type for carrying out Physical Downlink Control Channel blind check, if routine
(Normal) subframe, then step 206 is performed；If Multicast Broadcast Single Frequency Network (MBSFN) subframe, then step 207 is performed；
Step 206, receiving side use public guide frequency CRS when being demodulated and need not carry out letter according to PRG for unit
Road estimates and demodulation；
Step 207, receiving side use demodulation pilot tone DMRS when being demodulated and need not carry out letter according to PRG for unit
Road estimates and demodulation.
Embodiment one：
Network side sends the transmission mode that uses of data as transmission mode 9 by RRC signaling Configuration network side to receiving side,
And when configuring the feedback model of receiving side to need to feed back PMI/CQI, when network side is in descending sub frame scheduled reception side, profit
With descending control information format 2C come recessive instruction receiving side when being demodulated using demodulation pilot tone carries out channel estimation with
Demodulate and indicate that receiving side will be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to PRG.
The RRC signaling that receiving side is sent by receiving network side, the transmission mode for obtaining network side transmission data are transmission
Pattern 9, and the RRC signaling acquisition network side sent by receiving network side is configured when needing to feed back PMI/CQI, to subframe
When carrying out Physical Downlink Control Channel blind check, if blind check obtains Downlink Control Information using DCI Format 2C,
Channel estimation and demodulation are carried out using demodulation pilot tone when being demodulated, and are that unit carries out multiple Physical Resource Block according to PRG
Joint channel estimation and demodulation.
In the embodiment, under Normal patterns, according to different descending control information formats, the adjustment of dynamic flexible is believed
Mode is estimated in road, so as to make full use of the channel estimation gains that PRB is bound, improves the reliability and average throughput of system.
Embodiment two：
Network side sends data to receiving side by RRC signaling Configuration network side and uses transmission mode 9, and passes through high level
Signal deployment receiving side needs to feed back PMI/CQI, and when network side scheduled reception side in Normal descending sub frames, utilization is descending
Control information form 1A carrys out recessive instruction receiving side and carries out channel estimation and demodulation using public guide frequency when being demodulated, and
And instruction receiving side need not be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to PRG.
The RRC signaling that receiving side is sent by receiving network side, the transmission mode for obtaining network side transmission data are transmission
Pattern 9, and the RRC signaling acquisition network side sent by receiving network side is configured when needing to feed back PMI/CQI, right
When Normal subframes carry out the blind check of Physical Downlink Control Channel, if blind check obtains Downlink Control Information using DCI
During Format 1A, used when being demodulated public guide frequency carry out channel estimation and demodulation and need not be according to PRG for unit
Carry out joint channel estimation and the demodulation of multiple Physical Resource Block.
In the embodiment, under Fallback patterns, according to different descending control information formats, the adjustment of dynamic flexible
Channel estimation mode, so as to make full use of the frequency diversity gain that No-PRB is bound, improve the reliability of system and averagely gulp down
The amount of telling.
Embodiment three：
Network side sends data to receiving side by RRC signaling Configuration network side and uses transmission mode 9, and passes through high level
Signal deployment receiving side needs to feed back PMI/CQI, and when network side scheduled reception side in MBSFN descending sub frames, utilization is descending
Control information form 1A carrys out recessive instruction receiving side and carries out channel estimation and demodulation simultaneously using demodulation pilot tone when being demodulated
And instruction receiving side need not be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to PRG.
The RRC signaling that receiving side is sent by receiving network side, the transmission mode for obtaining network side transmission data are transmission
Pattern 9, and the RRC signaling acquisition network side sent by receiving network side is configured when needing to feed back PMI/CQI, right
When MBSFN sub-frame carries out the blind check of Physical Downlink Control Channel, if blind check obtains Downlink Control Information using DCI
During Format 1A, use and demodulate when being demodulated pilot tone carry out channel estimation and demodulation and need not according to PRG for singly
Position carries out joint channel estimation and the demodulation of multiple Physical Resource Block.
The example is under Fallback patterns, according to different descending control information formats, the adjustment channel of dynamic flexible
Estimation mode, so as to make full use of the frequency diversity gain that No-PRB is bound, improve the reliability and average throughput of system.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc..The configuration information notification scheme of use herein and Ei set pilot tones, should be included in the present invention's
Within protection domain.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (8)
- A kind of 1. method for demodulating the binding demodulation of pilot physical resource block, it is characterised in that suitable for network side；Whether network side indicates receiving side according to prelisting by configuring transmission mode, descending control information format and feedback model Code resource group PRG carries out joint channel estimation and demodulation；The network side by configure transmission mode, descending control information format and feedback model indicate receiving side whether according to Precoding resource group PRG carries out joint channel estimation and demodulation, including：Network side is by radio resource control RRC signal deployment network side to the transmission mode that receiving side transmission data use for biography Defeated pattern 9, and the feedback model for configuring receiving side indicates to need feeding back precoding matrix to index PMI/ channel quality informations During CQI, when network side is in descending sub frame scheduled reception side, using descending control information format 2C come recessive instruction receiving side Demodulation pilot tone is used to carry out channel estimation and demodulate and indicate that receiving side is more for unit progress according to PRG when being demodulated The joint channel estimation of individual Physical Resource Block and demodulation；OrNetwork side sends data to receiving side by RRC signaling Configuration network side and uses transmission mode 9, and passes through high-level signaling When configuration receiving side needs to feed back PMI/CQI, when network side scheduled reception side in Normal descending sub frames, descending control is utilized Information format 1A processed carrys out recessive instruction receiving side and carries out channel estimation and demodulation using public guide frequency when being demodulated, and It need not be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to PRG to indicate receiving side；OrNetwork side sends data to receiving side by RRC signaling Configuration network side and uses transmission mode 9, and passes through high-level signaling Configuration receiving side need feed back PMI/CQI, when network side in Multicast Broadcast Single Frequency Network MBSFN descending sub frames scheduled reception side When, channel is carried out using demodulation pilot tone when being demodulated come recessive instruction receiving side using descending control information format 1A and estimated Meter and demodulation, and indicate receiving side need not be according to PRG unit carry out multiple Physical Resource Block joint channel estimation and Demodulation.
- A kind of 2. method for demodulating the binding demodulation of pilot physical resource block, it is characterised in that suitable for receiving side；The radio resource control RRC signaling that receiving side is sent by receiving network side, obtain the transmission mould that network side sends data Formula is transmission mode 9, and the RRC signaling acquisition network side configuration sent by receiving network side needs feeding back precoding matrix When indexing PMI/ channel quality informations instruction CQI, when carrying out Physical Downlink Control Channel blind check to subframe, if blind check obtains When Downlink Control Information is using descending control information format 2C, channel estimation is carried out using demodulation pilot tone when being demodulated And demodulation, and be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to precoding resource group PRG；Or Person,The RRC signaling that receiving side is sent by receiving network side, the transmission mode for obtaining network side transmission data is transmission mode 9, and the RRC signaling acquisition network side sent by receiving network side is configured when needing to feed back PMI/CQI, to Normal When frame carries out the blind check of Physical Downlink Control Channel, if blind check obtains Downlink Control Information using Downlink Control Information lattice During formula 1A, use public guide frequency to carry out channel estimation and demodulation when being demodulated and need not be carried out according to PRG for unit The joint channel estimation of multiple Physical Resource Block and demodulation；OrThe RRC signaling that receiving side is sent by receiving network side, the transmission mode for obtaining network side transmission data is transmission mode 9, and the RRC signaling acquisition network side sent by receiving network side is configured when needing to feed back PMI/CQI, to multicast and broadcast When Single Frequency Network MBSFN sub-frame carries out the blind check of Physical Downlink Control Channel, if blind check obtains Downlink Control Information use When being descending control information format 1A, channel estimation and demodulation are carried out using demodulation pilot tone when being demodulated and need not be by It is joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to PRG.
- 3. a kind of system for demodulating the binding demodulation of pilot physical resource block, it is characterised in that the system includes network side；The network side, for being to indicate receiving side by configuring transmission mode, descending control information format and feedback model It is no to carry out joint channel estimation and demodulation according to precoding resource group PRG；The network side, used specifically for sending data to receiving side by radio resource control RRC signal deployment network side Transmission mode be transmission mode 9, and configure the feedback model of receiving side to need feeding back precoding matrix to index PMI/ letters During road quality information instruction CQI, and at descending sub frame scheduled reception side, using descending control information format 2C come recessive finger Show that receiving side uses demodulation pilot tone to carry out channel estimation and demodulate and indicate that receiving side will be according to PRG to be single when being demodulated Position carries out joint channel estimation and the demodulation of multiple Physical Resource Block；OrTransmission mode 9 is used specifically for sending data to receiving side by RRC signaling Configuration network side, and is believed by high level When order configuration receiving side needs to feed back PMI/CQI, and in Normal descending sub frames during scheduled reception side, believed using descending control Cease form 1A and carry out recessive instruction receiving side when being demodulated using public guide frequency progress channel estimation and demodulation, and indicate Receiving side need not be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to PRG；OrTransmission mode 9 is used specifically for sending data to receiving side by RRC signaling Configuration network side, and is believed by high level Order configuration receiving side needs to feed back PMI/CQI, and in Multicast Broadcast Single Frequency Network MBSFN descending sub frames during scheduled reception side, Channel estimation is carried out using demodulation pilot tone when being demodulated come recessive instruction receiving side using descending control information format 1A And demodulation, and indicate that receiving side need not be the joint channel estimation reconciliation that unit carries out multiple Physical Resource Block according to PRG Adjust.
- 4. a kind of system for demodulating the binding demodulation of pilot physical resource block, it is characterised in that the system includes receiving side；Receiving side, for the radio resource control RRC signaling sent by receiving network side, obtain the biography that network side sends data Defeated pattern is transmission mode 9, and the RRC signaling sent by receiving network side obtains network side configuration and needs to feed back precoding When matrix index PMI/ channel quality informations indicate CQI, when carrying out Physical Downlink Control Channel blind check to subframe, if blind check When obtaining Downlink Control Information using descending control information format 2C, channel is carried out using demodulation pilot tone when being demodulated Estimation and demodulation, and be the joint channel estimation reconciliation that unit carries out multiple Physical Resource Block according to precoding resource group PRG Adjust；OrFor the RRC signaling sent by receiving network side, the transmission mode for obtaining network side transmission data is transmission mode 9, And the RRC signaling acquisition network side sent by receiving network side is configured when needing to feed back PMI/CQI, to Normal subframes When carrying out the blind check of Physical Downlink Control Channel, if blind check obtains Downlink Control Information using descending control information format During 1A, used when being demodulated public guide frequency carry out channel estimation and demodulation and need not according to PRG be unit progress it is more The joint channel estimation of individual Physical Resource Block and demodulation；OrFor the RRC signaling sent by receiving network side, the transmission mode for obtaining network side transmission data is transmission mode 9, And the RRC signaling acquisition network side sent by receiving network side is configured when needing to feed back PMI/CQI, to multicast and broadcast list Frequency network MBSFN sub-frame carry out Physical Downlink Control Channel blind check when, if blind check obtain Downlink Control Information using During descending control information format 1A, channel estimation and demodulation are carried out using demodulation pilot tone when being demodulated and need not be according to PRG is joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block.
- 5. a kind of system for demodulating the binding demodulation of pilot physical resource block, including network side and receiving side, it is characterised in that：Network side, for by configure transmission mode, descending control information format and feedback model indicate receiving side whether by Joint channel estimation and demodulation are carried out according to precoding resource group PRG；Receiving side, determine whether for receiving the configuration of network side, and according to the configuration of network side according to precoding resource group PRG carries out joint channel estimation and demodulation；The network side, used specifically for sending data to receiving side by radio resource control RRC signal deployment network side Transmission mode be transmission mode 9, and configure the feedback model of receiving side to need feeding back precoding matrix to index PMI/ letters During road quality information instruction CQI, and at descending sub frame scheduled reception side, using descending control information format 2C come recessive finger Show that receiving side uses demodulation pilot tone to carry out channel estimation and demodulate and indicate that receiving side will be according to PRG to be single when being demodulated Position carries out joint channel estimation and the demodulation of multiple Physical Resource Block；OrTransmission mode 9 is used specifically for sending data to receiving side by RRC signaling Configuration network side, and is believed by high level When order configuration receiving side needs to feed back PMI/CQI, and in Normal descending sub frames during scheduled reception side, believed using descending control Cease form 1A and carry out recessive instruction receiving side when being demodulated using public guide frequency progress channel estimation and demodulation, and indicate Receiving side need not be joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block according to PRG；OrTransmission mode 9 is used specifically for sending data to receiving side by RRC signaling Configuration network side, and is believed by high level Order configuration receiving side needs to feed back PMI/CQI, and in Multicast Broadcast Single Frequency Network MBSFN descending sub frames during scheduled reception side, Channel estimation is carried out using demodulation pilot tone when being demodulated come recessive instruction receiving side using descending control information format 1A And demodulation, and indicate that receiving side need not be the joint channel estimation reconciliation that unit carries out multiple Physical Resource Block according to PRG Adjust.
- 6. system according to claim 5, it is characterised in thatThe transmission mode that the receiving side obtains network side configuration is transmission mode 9, and feedback model is to need to feed back PMI/CQI When, when carrying out the blind check to Physical Downlink Control Channel, if blind check obtains Downlink Control Information using descending control During information format 2C, channel estimation and demodulation are carried out using demodulation pilot tone when being demodulated, and according to precoding resource group PRG is joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block.
- 7. system according to claim 5, it is characterised in thatThe transmission mode that the receiving side obtains network side configuration is transmission mode 9, and feedback model is to need to feed back PMI/CQI, And Normal subframes to Physical Downlink Control Channel carry out blind check when, if blind check obtain Downlink Control Information using DCI Format 1A, then channel estimation and demodulation are carried out using public guide frequency in demodulation, and need not be provided according to precoding Source group PRG is joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block.
- 8. system according to claim 5, it is characterised in thatThe transmission mode that the receiving side obtains network side configuration is transmission mode 9, and feedback model is to need to feed back PMI/CQI, And MBSFN sub-frame to Physical Downlink Control Channel carry out blind check when, if blind check obtain Downlink Control Information using DCI Format 1A, then channel estimation and demodulation are carried out using demodulation pilot tone in demodulation, and need not be provided according to precoding Source group PRG is joint channel estimation and the demodulation that unit carries out multiple Physical Resource Block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110065556.5A CN102685038B (en) | 2011-03-17 | 2011-03-17 | A kind of method and system for demodulating the binding demodulation of pilot physical resource block |
| PCT/CN2012/072036 WO2012122912A1 (en) | 2011-03-17 | 2012-03-07 | Pilot and physical resource block bundling demodulation method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110065556.5A CN102685038B (en) | 2011-03-17 | 2011-03-17 | A kind of method and system for demodulating the binding demodulation of pilot physical resource block |
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| CN102685038B true CN102685038B (en) | 2017-11-21 |
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| EP2684328B1 (en) | 2011-03-30 | 2016-06-22 | Huawei Technologies Co., Ltd. | Method and apparatus for open loop transmission in a multiple antenna wireless communication system |
| CN103475606B (en) * | 2013-09-24 | 2016-08-17 | 重庆邮电大学 | Channel estimation methods based on reference signal under TM9 pattern in lte-a system |
| CN106714310B (en) * | 2015-11-16 | 2020-04-14 | 展讯通信（上海）有限公司 | Physical resource block binding detection method and device and user equipment |
| CN108667492B (en) * | 2017-03-31 | 2020-07-17 | 维沃移动通信有限公司 | Method and device for determining precoding granularity |
| KR102384877B1 (en) * | 2017-09-29 | 2022-04-08 | 삼성전자주식회사 | Method and apparatus for transmission and reception of data information in wirelss communication system |
| CN109802902B (en) * | 2017-11-16 | 2021-09-28 | 维沃移动通信有限公司 | Physical resource block binding size determining method, terminal equipment and network equipment |
| CN109802802B (en) * | 2017-11-17 | 2021-12-21 | 华为技术有限公司 | User equipment and access equipment |
| CN109802786B (en) * | 2017-11-17 | 2021-09-07 | 华为技术有限公司 | User equipment and channel measuring method |
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| CN101931896A (en) * | 2009-06-22 | 2010-12-29 | 大唐移动通信设备有限公司 | Method, system and equipment for sending data |
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| Discussion on precoding granularity for downlink MIMO;CATT;《3GPP TSG RAN WG1 Meeting#58，R1-093541》;20090828;第1-4页 * |
| Discussion on RB Bundling for DM-RS;Samsung;《3GPP TSG RAN WG1 Meeting #60bis，R1-102187》;20100416;第1-5页 * |
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