CN103997722B - A kind of method and system of demodulated reference signal - Google Patents
A kind of method and system of demodulated reference signal Download PDFInfo
- Publication number
- CN103997722B CN103997722B CN201310052285.9A CN201310052285A CN103997722B CN 103997722 B CN103997722 B CN 103997722B CN 201310052285 A CN201310052285 A CN 201310052285A CN 103997722 B CN103997722 B CN 103997722B
- Authority
- CN
- China
- Prior art keywords
- pattern
- pdsch
- demodulating
- prb
- dmrs
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of method and system of demodulated reference signal, this method include by high-level signaling, physical layer signaling or implicit configuration notification user equipment (UE), for demodulate Physical Downlink Shared Channel (PDSCH) uplink reference signals (RS) port in a Physical Resource Block (PRB) to internal mode (pattern)；For the port of different RS, the RS for demodulating PDSCH can use different pattern.In the system, notification unit is used for through high-level signaling, physical layer signaling or implicit configuration notification UE, mode pattern of the port inside a PRB pair of the RS for demodulating PDSCH；For the port of different RS, the RS for demodulating PDSCH can use different pattern.Using the present invention, DMRS density can be reduced under conditions of increase UE channel estimation resources as few as possible, is not only avoided that resource occupation, moreover it is possible to reduce DMRS expense to improve efficiency of transmission.
Description
Technical field
The present invention relates to DATA demodulation technique more particularly to a kind of method and system of demodulated reference signal.
Background technique
Different types of reference signal is defined according to different purpose/purposes in 3GPP LTE/LTE-A system, such as
Cell specific reference signal (CRS, Cell Specific Reference Signal) and various uplink reference signals (RS,
ReferenceSignal).RS includes: the demodulated reference signal (DMRS, Demodulation RS) or UE for signal detection
Specific reference signals (URS, UE Specific RS) or the channel state information for sending different community channel status
It indicates reference signal (CSI-RS, Channel Status Indicator RS).Wherein, CRS, DMRS and URS have relatively
High density can be used for data demodulation, and CSI-RS has lower density, is suitable for channel quality measurement.
A concern direction of the Small Cell as 3GPP technology includes that need to be passed by reducing DMRS expense to improve
The problem to be solved of defeated efficiency.One possible solution and be in the prior art: according to user equipment (UE) transmission channel
Statistical property reduces the time domain of DMRS/URS or the density of frequency domain.However the solution has problems in that: needing UE branch
Hold a variety of DMRS/URS modes (pattern).
In view of channel estimation module occupies the larger proportion of UE baseband processing resource, using the solution party of the prior art
Case will lead to a large amount of occupancy of resource, if it is close to reduce DMRS under conditions of increase UE channel estimation resources as few as possible
Degree, is not only avoided that resource occupation, moreover it is possible to reduce DMRS expense to improve efficiency of transmission, however not have such solution at present
Scheme.
Summary of the invention
In view of this, to the greatest extent may be used the main purpose of the present invention is to provide a kind of method and system of demodulated reference signal
DMRS density can be reduced under conditions of increase UE channel estimation resources that can be few, is not only avoided that resource occupation, moreover it is possible to reduce
DMRS expense improves efficiency of transmission.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of method of demodulated reference signal is set by high-level signaling, physical layer signaling or implicit configuration notification user
Standby UE, for demodulate Physical Downlink Shared Channel PDSCH uplink reference signals RS port in a Physical Resource Block PRB pair
Internal mode pattern；For the port of different RS, the RS for demodulating PDSCH can use different pattern.
Wherein, for the port of each RS, the pattern inside the PRB pair includes following any mode:
Reuse the pattern of existing demodulated reference signal DMRS；
The pattern of existing channel state instruction reference signal CSI-RS is reused, and corresponds to the resource RE of existing DMRS
For sending PDSCH；
The pattern of new RS is set.
Wherein, the pattern of the new RS of the setting specifically: punching is on the pattern of existing DMRS to realize；
Wherein, punching with an occupied RE of R/S symbol after orthogonal covering codes OCC operation is minimum punching unit, is beaten
Pattern behind hole is period or using precoding resource block group PRG as the period using the PRB pair.
Wherein, the pattern for reusing existing DMRS, the pattern for reusing existing CSI-RS and the setting
New PRG size can be all arranged in the pattern of new RS；Wherein,
New PRG size is set specifically: increasing PRG isWherein, the Q is under current system bandwidth
Existing PRG size；It is describedI1ForR/S symbol number in a PRB, for demodulating PDSCH；It is describedI2 Exist for existing DMRS
R/S symbol number in one PRB；It is describedIndicate downward rounding operation.
Wherein, the pattern of the new RS of the setting is further are as follows: the R/S symbol energy on the pattern of new RS is arranged
Using the strategy of power ascension, remain unchanged the general power of RS and the DMRS general power before punching that obtain after punching.
Wherein, the RS for demodulating PDSCH can be in all or part of PRB in K PRB of the continuous dispensing to UE
There is blank Blanking subframe, corresponding RE is for sending PDSCH；
Wherein, the K PRB belongs to the same PRG.
Wherein, the RS for demodulating PDSCH can be in all or part of son in T subframe of the continuous dispensing to UE
There is Blanking subframe in frame, and corresponding RE is for sending PDSCH.
Wherein, described to be used for if the pattern for demodulating the RS of PDSCH is CSI-RS pattern
The pattern for demodulating the RS of PDSCH only takes up the frequency band or PRB of PDSCH occupancy；Alternatively, only taking up the phase of PDSCH occupancy
Answer subframe；
Wherein, it for demodulating the transmission power of the RS of PDSCH, is reused using with the consistent power emission of PDSCH, or use
Radio resource control RRC signaling indicates that it realizes the transmitting of RS with the power ratio of PDSCH.
A kind of system of demodulated reference signal, the system include: notification unit, demodulating unit；Wherein,
The notification unit, for passing through high-level signaling, physical layer signaling or implicit configuration notification UE, for demodulating
Mode pattern of the port of the RS of PDSCH inside a PRB pair；
The demodulating unit, for demodulating PDSCH according to RS, for the port of different RS, for demodulating the RS energy of PDSCH
Using different pattern.
Wherein, which further includes setting unit, when being arranged for the port for each RS, inside the PRB pair
Pattern include following any mode:
Reuse the pattern of existing DMRS；
The pattern of existing CSI-RS is reused, and corresponding to the RE of existing DMRS for sending PDSCH；
The pattern of new RS is set.
Wherein, the setting unit, when being further used for that the pattern of new RS is arranged, by existing DMRS's
Punching is on pattern to realize；Wherein, an occupied RE of R/S symbol after punching is operated with OCC is minimum punching unit,
Pattern after punching is period or using precoding resource block group PRG as the period using the PRB pair.
Wherein, the setting unit is further used in the pattern for reusing existing DMRS, and the reuse is existing
The pattern of the CSI-RS and pattern that new RS is arranged, can all be arranged new PRG size；Wherein,
New PRG size is set specifically: increasing PRG isWherein, the Q is under current system bandwidth
Existing PRG size；It is describedI1 For the R/S symbol number in a PRB, for demodulating PDSCH；It is describedI2 Exist for existing DMRS
R/S symbol number in one PRB；It is describedIndicate downward rounding operation.
Wherein, the setting unit, being further used for being arranged the R/S symbol on the pattern of new RS can be mentioned using power
The strategy risen remains unchanged the general power of RS and the DMRS general power before punching that obtain after punching.
Wherein, the setting unit, being further used for the setting RS for demodulating PDSCH can be in continuous dispensing to UE
K PRB in all or part of PRB there is Blanking subframe, corresponding RE is for sending PDSCH；Wherein, the K
A PRB belongs to the same PRG.
Wherein, the setting unit, being further used for the setting RS for demodulating PDSCH can be in continuous dispensing to UE
T subframe in all or part of subframe there is Blanking subframe, corresponding RE is for sending PDSCH.
Wherein, the setting unit, being further used for the pattern for demodulating the RS of PDSCH is CSI-RS
When pattern, the pattern of the setting RS for demodulating PDSCH only takes up the frequency band or PRB of PDSCH occupancy；Or
Person only takes up the corresponding subframe of PDSCH occupancy；Wherein, for demodulating the transmission power of the RS of PDSCH, using consistent with PDSCH
Power emission, or indicate that the power ratio of itself and PDSCH realize the transmitting of RS using RRC signaling is reused.
Method of the invention is used for by high-level signaling, physical layer signaling or implicit configuration notification user equipment (UE)
The port of the RS of Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel) is demodulated at one
Physical Resource Block (PRB) is to internal pattern；For the port of different RS, the RS for demodulating PDSCH can use different
pattern.Using the present invention, since the port RS for demodulating PDSCH can be prenoticed inside a PRB pair
Pattern, and for the port of different RS, therefore the RS for demodulating PDSCH be able to the greatest extent can may be used using different pattern
DMRS density is reduced under conditions of increase UE channel estimation resources that can be few, is not only avoided that resource occupation, moreover it is possible to reduce DMRS
Expense improves efficiency of transmission.
Detailed description of the invention
Fig. 1 is the implementation process schematic diagram of the method for the present invention.
Specific embodiment
The basic idea of the invention is that: by high-level signaling, physical layer signaling or implicit configuration notification user equipment (UE),
For demodulating pattern of the port inside a PRB pair of the RS of PDSCH；For the port of different RS, for demodulating
The RS of PDSCH can use different pattern.
The implementation of technical solution is described in further detail with reference to the accompanying drawing.
The method of demodulated reference signal of the present invention is the scheme of demodulated reference signal for data demodulation, applicable scene
The reference signal for data demodulation being related in 3GPP technology in LTE-advance communication system, it is contemplated that the prior art
Solution will lead to largely accounting for for resource since channel estimation module occupies the larger proportion of UE baseband processing resource
With this mode for increasing RS pattern of the prior art should be endowed lower priority, and the present invention is as few as possible
Increase UE channel estimation resources under conditions of, reduce DMRS density scheme.
The method of demodulated reference signal of the invention mainly includes the following contents:
As shown in Figure 1, method includes the following steps:
Step 101, system by high-level signaling, physical layer signaling or hidden show configuration notification UE for demodulating PDSCH's
Pattern of the port of RS inside a PRB pair.
Step 102 demodulates PDSCH according to RS, and for the port of different RS, the RS for demodulating PDSCH can be using difference
Pattern.
Further, in step 101, for each port RS, pattern inside the PRB pair there are several types of
May:
Reuse the pattern of the DMRS in existing system；
The pattern of the CSI-RS in existing system is reused, the resource (RE) of corresponding tradition DMRS is for sending PDSCH；
Define the pattern of new RS.
Then in step 102, the port for different RS, the RS for demodulating PDSCH can use different pattern
For example, such as the section ports in multiple ports RS for demodulating PDSCH use DMRS in existing system
Pattern, section ports use the pattern of CSI-RS in existing system, and section ports use the RS pattern newly defined.
Further, described to define new RS pattern by punching realization, punching on traditional DMRS pattern
Operating a later occupied RE of R/S symbol with orthogonal covering codes (OCC, Orthogonal Covering Code) is most
Small punching unit punches later pattern using PRB pair as the period or with precoding resource block group (PRB, Precoding
Resource-block Group) it is the period.
Further, the pattern for reusing the DMRS in existing system, it is described to reuse existing system CSI-RS's
The pattern and pattern for defining new RS, can define new PRG size, wherein it is specific that new PRG size is arranged
Are as follows: increasing PRG isWherein Q is PRG size traditional under current system bandwidth,I1 It is (average) in a PRB
The interior R/S symbol number for being used to demodulate PDSCH,I2 It is R/S symbol number of traditional DMRS in a PRB,Expression takes downwards
It is whole.A basic assumption due to reducing DMRS expense is that channel has preferable time-frequency domain correlation, using the present invention
The quantity that PRB in PRG can be improved on frequency domain increases the precision of channel estimation and does not have to the loss for worrying pre-coding gain.
Further, the new RS pattern, R/S symbol thereon can use power ascension (Power
Boosting strategy), the DMRS general power before RS general power and punching after as keeping punching are constant.Had using the strategy
Two benefits: first is that system does not need the amplitude of additional notifications UE current power promotion；Second is that in high s/n ratio environment, from
A small amount of power is borrowed on PDSCH, and performance loss hardly is brought to PDSCH.
Further, the described RS for demodulating PDSCH can in K PRB of the continuous dispensing to UE whole or
There is blank (Blanking) subframe in person part PRB, i.e., are as follows: RS is not sent, and corresponding RE is for sending PDSCH.Wherein, the K
A PRB belongs to the same PRG.
Further, the above-mentioned RS for demodulating PDSCH can in T subframe of the continuous dispensing to UE whole or
There is Blanking in person part subframe, i.e., are as follows: RS is not sent, and corresponding RE is for sending PDSCH.
Further, above-mentioned to demodulate RS for PDSCH, if its pattern is CSI-RS pattern: it only takes up
Frequency band/PRB that PDSCH is occupied, rather than occupy full bandwidth；Or the corresponding subframe of PDSCH occupancy is only taken up, rather than
Occur according to CSI-RS period/sub-frame offset of RRC signaling configuration.
Wherein, consistent with PDSCH for demodulating the transmission power of the RS of PDSCH；Alternatively, radio resource control can also be reused
System (RRC, Radio Resource Control) signaling indicates the power ratio of RS and PDSCH to realize the transmitting of RS.
Further, above-mentioned to demodulate RS for PDSCH, if its pattern is CSI-RS pattern, RS sequence is generated
There is following two method:
1) it reuses CSI-RS sequence and generates CSI-RS symbol of the formula generation in respective bandwidth, but newly increase one and disturb
Code parameternSCID For supporting the multi-user of double antenna port to demodulate, it is specific (0,1,2) that the scrambling code parameter can be cell
Or UE is specific, as described below:
m=M1,M2..., MP
Wherein l, ns, c () is OFDM symbol index, time slot index, pseudo-random sequence respectively according to existing definition.MpIt is UE
For the PRB of the PDSCH of distribution in the index of system bandwidth, P is the occupied total PRB quantity of PDSCH.
2) sequence for reusing DMRS generates formula.
Further, a port for PDSCH demodulation RS, when pattern is the pattern of CSI-RS,
The port for PDSCH demodulation RS reuse in existing DCI signaling about antenna port configuration bit, but need by
RS pattern updates, and updates principle are as follows: in the port of the identical RE of multiplexing in tradition DCI bit indication, update with
After be also required to be multiplexed identical RE.
Such as the port that [781113] accordingly update is also required to be multiplexed identical 4 RE.Here is two examples:
[7891011121314]——〉[1516171819212022]
[7891011121314]——〉[1516171821192220]
The difference of above two example is that length is the antenna port used more than or equal to 4CSI-RS pattern
When, OCC operation is that (such as port 15/19) carries out or at the end for being separated by 6 subcarriers on the port of adjacent sub-carrier
(such as port 15/21) carries out on mouth.
For RS pattern to be currently used in PDSCH demodulation is all made of CSI-RS pattern, DCI bit indication
One example is as shown in bold Italic part in following table 1.Table 1 is the antenna port based on CSI-RS data demodulation, scrambling code and layer
Dial gauge.
Table 1
Further by taking the part RS pattern for being currently used in PDSCH demodulation uses CSI-RS pattern as an example, it is assumed that
Traditional port [781113] uses DMRS pattern, and traditional port [9101214] uses CSI-RS pattern, mapping relations
An example are as follows:
[7891011121314]——〉[78171811211322]
One example of DCI bit indication is as shown in bold Italic part in following table 2.Table 2 is based on CSI-RS data solution
The dial gauge of the antenna port of tune, scrambling code and layer.
Table 2
Further, the reuse DMRS sequence generates formula, and the OCC between multiple ports is operated according to use described above
It is retouched in a port of PDSCH demodulation RS, RS pattern renewal process when pattern is the pattern of CSI-RS
After the mapping relations stated will update port mapping to traditional DMRS port, it then follows the OCC of existing traditional port, which is operated, to carry out.
For example, the operation of the OCC length 4 between traditional port [781113] is according to table 1, it should in port
[15161920] it is carried out between.
The system of demodulated reference signal of the invention mainly includes the following contents:
The system includes: notification unit, demodulating unit；Wherein, notification unit is used to pass through high-level signaling, physical layer signaling
Or implicit configuration notification UE, mode pattern of the port inside a PRB pair of the RS for demodulating PDSCH.Demodulation is single
Member is for demodulating PDSCH according to RS, and for the port of different RS, the RS for demodulating PDSCH can use different pattern.
Here, which further includes setting unit, when being arranged for the port for each RS, inside the PRB pair
Pattern include following any mode:
1) pattern of existing DMRS is reused；
2) pattern of existing CSI-RS is reused, and corresponding to the RE of existing DMRS for sending PDSCH；
3) pattern of new RS is set.
Here, when setting unit is further used for that the pattern of new RS is arranged, pass through the pattern in existing DMRS
Upper punching is to realize；Wherein, an occupied RE of R/S symbol after punching is operated with OCC is minimum punching unit, after punching
Pattern using the PRB pair be period or using precoding resource block group PRG as the period.
Here, setting unit is further used in the pattern for reusing existing DMRS, the existing CSI-RS of reuse
Pattern and the new RS of the setting pattern, new PRG size can be all set；Wherein,
New PRG size is set specifically: increasing PRG isWherein, the Q is under current system bandwidth
Existing PRG size；It is describedI1 For the R/S symbol number in a PRB, for demodulating PDSCH；It is describedI2 Exist for existing DMRS
R/S symbol number in one PRB；It is describedIndicate downward rounding operation.
Here, setting unit, which is further used for being arranged the R/S symbol on the pattern of new RS, can use power ascension
Strategy remains unchanged the general power of RS and the DMRS general power before punching that obtain after punching.
Here, setting unit is further used for K that the setting RS for demodulating PDSCH can be in continuous dispensing to UE
There is Blanking subframe in all or part of PRB in PRB, and corresponding RE is for sending PDSCH；Wherein, the K PRB
Belong to the same PRG.
Here, setting unit is further used for T that the setting RS for demodulating PDSCH can be in continuous dispensing to UE
There is Blanking subframe in all or part of subframe in subframe, and corresponding RE is for sending PDSCH.
Here, it is CSI-RS pattern that setting unit, which is further used for the pattern for demodulating the RS of PDSCH,
When, the pattern of the setting RS for demodulating PDSCH only takes up the frequency band or PRB of PDSCH occupancy；Alternatively, only accounting for
The corresponding subframe occupied with PDSCH；Wherein, for demodulating the transmission power of the RS of PDSCH, using with the consistent power of PDSCH
Transmitting, or indicate that the power ratio of itself and PDSCH realize the transmitting of RS using RRC signaling is reused.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (14)
1. a kind of method of demodulated reference signal, which is characterized in that logical by high-level signaling, physical layer signaling or implicit configuration
Know user equipment (UE), is provided for demodulating the port of uplink reference signals RS of Physical Downlink Shared Channel PDSCH in a physics
Mode pattern inside source block PRB pair；For the port of different RS, the RS for demodulating PDSCH can use different
pattern；
For the port of each RS, the pattern inside the PRB pair includes following any mode:
Reuse the pattern of existing demodulated reference signal DMRS；
The pattern of existing channel state instruction reference signal CSI-RS is reused, and is used for corresponding to the resource RE of existing DMRS
Send PDSCH；
The pattern of new RS is set.
2. the method according to claim 1, wherein the pattern that new RS is arranged specifically: existing
Punching is on the pattern of DMRS to realize；
Wherein, punching with an occupied RE of R/S symbol after orthogonal covering codes OCC operation is minimum punching unit, after punching
Pattern using the PRB pair be period or using precoding resource block group PRG as the period.
3. the method according to claim 1, wherein the pattern for reusing existing DMRS, described to reuse now
There are the pattern and the pattern that new RS is set of CSI-RS, new PRG size can be all set；Wherein,
New PRG size is set specifically: increasing PRG isWherein, the Q is existing under current system bandwidth
PRG size；The I1For the R/S symbol number in a PRB, for demodulating PDSCH；The I2It is existing DMRS at one
R/S symbol number in PRB；It is describedIndicate downward rounding operation.
4. according to the method described in claim 2, it is characterized in that, the pattern that new RS is arranged is further are as follows: setting
R/S symbol on the pattern of new RS can use the strategy of power ascension, make the general power and punching of the RS obtained after punching
Preceding DMRS general power remains unchanged.
5. method according to claim 1 to 4, which is characterized in that the RS for demodulating PDSCH can be
There is blank Blanking subframe to all or part of PRB in the K PRB of UE in continuous dispensing, and corresponding RE is for sending
PDSCH；
Wherein, the K PRB belongs to the same PRG.
6. method according to claim 1 to 4, which is characterized in that the RS for demodulating PDSCH can be
There is Blanking subframe to all or part of subframe in the T subframe of UE in continuous dispensing, and corresponding RE is for sending
PDSCH。
7. the method according to claim 1, wherein if the pattern of the RS for demodulating PDSCH is
When CSI-RS pattern, then the pattern of the RS for demodulating PDSCH only take up PDSCH occupancy frequency band or
PRB；Alternatively, only taking up the corresponding subframe of PDSCH occupancy；
Wherein, it for demodulating the transmission power of the RS of PDSCH, is reused wirelessly using with the consistent power emission of PDSCH, or use
Resources control RRC signaling indicates that it realizes the transmitting of RS with the power ratio of PDSCH.
8. a kind of system of demodulated reference signal, which is characterized in that the system includes: notification unit, demodulating unit, and setting list
Member；Wherein,
The notification unit, for passing through high-level signaling, physical layer signaling or implicit configuration notification UE, for demodulating PDSCH
RS mode pattern of the port inside a PRB pair；
The demodulating unit, for demodulating PDSCH according to RS, for the port of different RS, the RS for demodulating PDSCH can be used
Different pattern；
The setting unit, when being arranged for the port for each RS, the pattern inside the PRB pair includes following
Any mode:
Reuse the pattern of existing DMRS；
The pattern of existing CSI-RS is reused, and corresponding to the RE of existing DMRS for sending PDSCH；
The pattern of new RS is set.
9. system according to claim 8, which is characterized in that the setting unit is further used for being arranged new RS's
When pattern, realized by being punched on the pattern of existing DMRS；Wherein, the RS symbol after punching is operated with OCC
Number occupied RE is minimum punching unit, and the pattern after punching is using the PRB pair as the period or with precoding resource block
Group PRG is the period.
10. system according to claim 8, which is characterized in that the setting unit is further used for reusing now described
There are the pattern of DMRS, the pattern for reusing existing CSI-RS and the pattern that new RS is set, can all be arranged
New PRG size；Wherein,
New PRG size is set specifically: increasing PRG isWherein, the Q is existing under current system bandwidth
PRG size；The I1For the R/S symbol number in a PRB, for demodulating PDSCH；The I2It is existing DMRS at one
R/S symbol number in PRB；It is describedIndicate downward rounding operation.
11. system according to claim 9, which is characterized in that the setting unit is further used for being arranged new RS's
R/S symbol on pattern can use the strategy of power ascension, the general power for making the RS obtained after punching and the DMRS before punching
General power remains unchanged.
12. the system according to any one of claim 8 to 11, which is characterized in that the setting unit is further used for
The RS for demodulating PDSCH, which is arranged, to be occurred in all or part of PRB in K PRB of the continuous dispensing to UE
Blanking subframe, corresponding RE is for sending PDSCH；Wherein, the K PRB belongs to the same PRG.
13. the system according to any one of claim 8 to 11, which is characterized in that the setting unit is further used for
The RS for demodulating PDSCH, which is arranged, to be occurred in all or part of subframe in T subframe of the continuous dispensing to UE
Blanking subframe, corresponding RE is for sending PDSCH.
14. system according to claim 8, which is characterized in that the setting unit is further used for described for demodulating
When the pattern of the RS of PDSCH is CSI-RS pattern, the pattern of the setting RS for demodulating PDSCH is only taken up
The frequency band or PRB that PDSCH is occupied；Alternatively, only taking up the corresponding subframe of PDSCH occupancy；Wherein, for demodulating PDSCH's
The transmission power of RS reuses RRC signaling and indicates its power ratio with PDSCH using with the consistent power emission of PDSCH, or use
Value realizes the transmitting of RS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310052285.9A CN103997722B (en) | 2013-02-18 | 2013-02-18 | A kind of method and system of demodulated reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310052285.9A CN103997722B (en) | 2013-02-18 | 2013-02-18 | A kind of method and system of demodulated reference signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103997722A CN103997722A (en) | 2014-08-20 |
| CN103997722B true CN103997722B (en) | 2019-06-18 |
Family
ID=51311702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310052285.9A Active CN103997722B (en) | 2013-02-18 | 2013-02-18 | A kind of method and system of demodulated reference signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103997722B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455066B (en) | 2015-08-10 | 2020-05-08 | 上海诺基亚贝尔股份有限公司 | Method and device for configuring downlink control information |
| CN107888253A (en) * | 2016-09-30 | 2018-04-06 | 北京信威通信技术股份有限公司 | A kind of method of reduction CSI RS reference signal density |
| RU2734104C1 (en) | 2016-12-06 | 2020-10-13 | Гуандун Оппо Мобайл Телекоммьюникейшнс Корп., Лтд. | Method for demodulation of a shared reference signal, a terminal device and a network device |
| CN108270538B (en) * | 2017-01-04 | 2020-02-14 | 中兴通讯股份有限公司 | Parameter determination and sending methods and devices of reference signal, terminal and base station |
| EP3569015A1 (en) * | 2017-01-12 | 2019-11-20 | Telefonaktiebolaget LM Ericsson (publ) | A wireless communication device and a method therein for reporting signal quality measurements |
| CN115483951A (en) | 2017-01-13 | 2022-12-16 | Idac控股公司 | Method, device and system for phase-continuous frequency selective precoding processing |
| CN108631986B (en) * | 2017-03-24 | 2020-09-11 | 电信科学技术研究院 | Method and device for determining DMRS (demodulation reference signal) resources of downlink control channel |
| US20180367244A1 (en) * | 2017-06-16 | 2018-12-20 | Mediatek Inc. | Method And Apparatus For Uplink Partial Sub-Frame Transmission In Mobile Communications |
| EP3662584A4 (en) * | 2017-08-03 | 2020-08-05 | Nec Corporation | Method and apparatus for reference signal configuration |
| CN109392121B (en) * | 2017-08-10 | 2021-05-14 | 维沃移动通信有限公司 | Resource multiplexing method and equipment |
| CN113228768B (en) * | 2018-11-21 | 2024-01-19 | 高通股份有限公司 | Configuring subband precoding resource block group of channel state information reference signal |
| CN112262607B (en) * | 2018-12-26 | 2024-03-05 | Oppo广东移动通信有限公司 | DMRS configuration method, terminal equipment and network equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340801A (en) * | 2010-07-14 | 2012-02-01 | 中国移动通信集团公司 | Method for determining reference signal (RS) position and equipment thereof |
| CN102378270A (en) * | 2010-08-16 | 2012-03-14 | 上海贝尔股份有限公司 | Method for determining reference signal (RS) pattern |
| CN102404854A (en) * | 2011-11-04 | 2012-04-04 | 中兴通讯股份有限公司 | Resource allocation method and resource allocation system for uplink demodulation reference signals (DMRSs) |
-
2013
- 2013-02-18 CN CN201310052285.9A patent/CN103997722B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340801A (en) * | 2010-07-14 | 2012-02-01 | 中国移动通信集团公司 | Method for determining reference signal (RS) position and equipment thereof |
| CN102378270A (en) * | 2010-08-16 | 2012-03-14 | 上海贝尔股份有限公司 | Method for determining reference signal (RS) pattern |
| CN102404854A (en) * | 2011-11-04 | 2012-04-04 | 中兴通讯股份有限公司 | Resource allocation method and resource allocation system for uplink demodulation reference signals (DMRSs) |
Non-Patent Citations (2)
| Title |
|---|
| "Considerations on UE-specific RS for small cell enhancement";Fujitsu;《3GPP TSG RAN WG1 Meeting #72，R1-130174》;20130201;全文 |
| "Evaluation on the Uplink DMRS Overhead Reduction of Small Cells";ZTE;《3GPP TSG-RAN WG1 #72；R1-130139》;20130201;全文 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103997722A (en) | 2014-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103997722B (en) | A kind of method and system of demodulated reference signal | |
| US10958397B2 (en) | Method and apparatus for transmitting and receiving data | |
| CN102845009B (en) | Based on the channel feedback of reference signal | |
| CN106856426B (en) | A kind of DMRS indicating means, terminal and base station | |
| CN102665230B (en) | Method and device for carrying out E-PDCCH transmission and blind test | |
| CN104782206B (en) | Terminal installation, communication means and integrated circuit | |
| KR101364951B1 (en) | Method and system for transmitting position reference signal | |
| CN104737488B (en) | To MTC type terminal distribution transfer resources | |
| WO2017130970A2 (en) | Base station, terminal, and communication method | |
| CN104982001B (en) | The received method and apparatus of reference symbol | |
| CN104012015B (en) | The control channel sending method and equipment of DRS (Dedicated Reference Signal) are sent in wireless communication system | |
| CN101541085B (en) | Sending and using method of measure-reference signals | |
| CN109691003A (en) | The method and apparatus that terminal sends D2D data in a wireless communication system | |
| WO2017130967A2 (en) | Base station device, terminal device, and communication method | |
| CN106063314A (en) | Terminal device and base station device | |
| CN104769868A (en) | Terminal device, integrated circuit, radio communication method, and base station device | |
| WO2017073083A1 (en) | Systems and methods for multi-physical structure system | |
| CN104885543A (en) | Method and apparatus for determining transport block size in wireless communication system | |
| WO2013119091A1 (en) | Method for receiving downlink data channels in multicell-based wireless communication systems and apparatus for same | |
| CN102356680A (en) | Method for transmitting location based service -reference signal in wireless communication system and apparatus therefor | |
| Rui et al. | Carrier aggregation for LTE-advanced: uplink multiple access and transmission enhancement features | |
| CN101771444A (en) | Method for setting reference signals in multi-antenna system and base station | |
| CN108155980A (en) | The reception and configuration of downlink control channel | |
| CN109964466B (en) | Parameter set dependent downlink control channel mapping | |
| US20130286966A1 (en) | Method of allocating radio resources for control channel and method for receiving the control channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20140820 Assignee: SANECHIPS TECHNOLOGY Co.,Ltd. Assignor: ZTE Corp. Contract record no.: 2015440020319 Denomination of invention: Method and system for demodulation reference signal License type: Common License Record date: 20151123 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221114 Address after: 518055 Zhongxing Industrial Park, Liuxian Avenue, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: SANECHIPS TECHNOLOGY Co.,Ltd. Address before: 518057 Ministry of justice, Zhongxing building, South Science and technology road, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee before: ZTE Corp. |