CN107181579A - A kind of descending DMRS resource multiplexing methods - Google Patents
A kind of descending DMRS resource multiplexing methods Download PDFInfo
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- CN107181579A CN107181579A CN201610137866.6A CN201610137866A CN107181579A CN 107181579 A CN107181579 A CN 107181579A CN 201610137866 A CN201610137866 A CN 201610137866A CN 107181579 A CN107181579 A CN 107181579A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000033001 locomotion Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention proposes a kind of descending DMRS resource multiplexing methods, and methods described includes：Shared M sets RE resources, are multiplexed using length per N number of DMRS port for N OCC codes to same set of RE resources, and the resource block in the same set of RE resources is continuous in time domain, and M, N are positive integer.The present invention can support higher UE translational speeds.
Description
Technical field
The present invention relates to LTE communication field, more particularly to a kind of descending DMRS resource multiplexing methods.
Background technology
Being used for the reference symbol of data demodulation in LTE versions has CRS and DMRS, and wherein CRS is
Introduced in R8 versions, could support up 4 antenna ports, belong to the specific RS of cell, carried out in full cell
Covering；In order to support more antenna ports in R10 versions, introduce DMRS (demodulated reference signal,
Demodulation Reference Signals), 8 antenna ports can be at most supported, belong to the specific RS of user,
Using with user data identical precoding, therefore have narrower wave beam, higher covering performance；In R13
In order to support to make full use of large-scale antenna array in version, DMRS is further enhanced, can be supported
The number of plies of higher progress MUMIMO transmission.Therefore demodulated in new LTE versions as user data
Reference symbol, DMRS is first choice.
In current technology, DMRS maximums can support 8 antenna ports, utilize the OCC that length is 4
(orthogonality cover code, orthogonal covering codes) code realizes multiplexing of the port to RE resources.Due to
OCC=4 (i.e. OCC code lengths are 4), only 4 kinds mutually orthogonal OCC code types：[+1+1+1+1],
[+1-1+1-1], [+1+1-1-1], [+1-1-1+1], then can only at most have 41 set of multiplexed ports
Different OCC code types are respectively adopted in identical RE resources, 4 ports.Current 8 DMRS
The resource multiplex figure of port is as shown in figure 1, be wherein designated A 4 multiplexed ports, 1 set of identical RE
Resource, is designated the B other 1 set of identical RE resources of other 4 multiplexed ports, every suit RE moneys
Source includes 4 resource blocks that frequency domain is identical, time domain is different.
Using above-mentioned Fig. 1 DMRS resource multiplex modes when, every suit RE resources need in time domain across
6 symbols, time domain robustness is poor, is only applicable to the scene of UE low-speed motions.When UE translational speeds
It is higher, if still use Fig. 1 resource multiplex mode, it will cause relatively low channel estimating performance.Therefore
It is necessary to propose a kind of more preferable DMRS resource multiplexes mode, to support higher UE translational speeds.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of descending DMRS resource multiplexing methods, institute
The method of stating includes：Shared M sets RE resources, the OCC that length is N is utilized per N number of DMRS port
Code is multiplexed to same set of RE resources, and the resource block in the same set of RE resources is to connect in time domain
Continuous, M, N are positive integer.
It is preferred that, N=4, the same set of RE resources are by 4 equal adjacent resources over the frequency domain
Block is constituted.It is further preferred that M=2.
It is preferred that, N=2, the same set of RE resources are by 2 resource blocks that frequency domain is identical, time domain is adjacent
Composition.It is further preferred that M=4.
It is preferred that, N=2, the same set of RE resources are by 2 frequency domains are adjacent, time domain identical resource block
Composition.It is further preferred that M=4.
The time domain robustness of the descending DMRS resource multiplexing methods of the present invention is stronger, can support higher
UE translational speeds.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
The accompanying drawing used required in example or description of the prior art is briefly described, it should be apparent that, retouch below
Accompanying drawing in stating is some embodiments of the present invention, for those of ordinary skill in the art, is not being paid
On the premise of creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the resource multiplex figure of the DMRS port of background of invention；
Fig. 2 is the resource multiplex figure of the DMRS port of the embodiment of the present invention 1；
Fig. 3 is the resource multiplex figure of the DMRS port of the embodiment of the present invention 2；
Fig. 4 is the resource multiplex figure of the DMRS port of the embodiment of the present invention 3.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that
Described embodiment is a part of embodiment of the invention, rather than whole embodiments；It should be noted that
In the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made
Every other embodiment, belong to the scope of protection of the invention.
Embodiment 1
The present embodiment utilizes the OCC codes that length is 4 using 2 sets of RE resources, every 4 DMRS ports
Same set of RE resources are multiplexed, i.e., 4 DMRS ports are respectively from following mutually orthogonal OCC
One kind in code type：[+1+1+1+1], [+1-1+1-1], [+1+1-1-1], [+1-1-1+1],
Then DMRS maximums can support 8 antenna ports after RE resource multiplexes.
The resource multiplex of 8 DMRS ports is as shown in Fig. 2 be wherein designated A 4 multiplexed ports 1
Identical RE resources are covered, the B other 1 set of identical RE resources of other 4 multiplexed ports are designated,
4 resource blocks of every suit RE resources are adjacent on frequency domain and in time domain.Due in same RE resources
Resource block be continuous in time domain, time domain robustness is increased, so the present embodiment can be applicable
In the scene of UE high-speed motions.
Embodiment two
The present embodiment utilizes the OCC codes that length is 2 using 4 sets of RE resources, every 2 DMRS ports
Same set of RE resources are multiplexed, i.e., 2 DMRS ports are respectively from following mutually orthogonal OCC
One kind in code type：[1 1], [1-1], then DMRS maximums can support 8 days after RE resource multiplexes
Line end mouthful.
The resource multiplex of 8 DMRS ports is as shown in figure 3, be wherein designated A 2 multiplexed ports 1
Identical RE resources are covered, B 2 multiplexed ports, 1 set of identical RE resource is designated, is designated C
2 multiplexed ports, 1 set of identical RE resource, be designated D 2 multiplexed ports, 1 set of identical
RE resources, 2 resource block frequency domains of every suit RE resources are identical, time domain is adjacent.Due to same RE moneys
Resource block in source is continuous in time domain, and time domain robustness is increased, so the present embodiment can
Suitable for the scene of UE high-speed motions.
Embodiment three
The present embodiment utilizes the OCC codes that length is 2 using 4 sets of RE resources, every 2 DMRS ports
Same set of RE resources are multiplexed, i.e., 2 DMRS ports are respectively from following mutually orthogonal OCC
One kind in code type：[1 1], [1-1], then DMRS maximums can support 8 days after RE resource multiplexes
Line end mouthful.
The resource multiplex of 8 DMRS ports is as shown in figure 4, be wherein designated A 2 multiplexed ports 1
Identical RE resources are covered, B 2 multiplexed ports, 1 set of identical RE resource is designated, is designated C
2 multiplexed ports, 1 set of identical RE resource, be designated D 2 multiplexed ports, 1 set of identical
RE resources, 2 resource block frequency domains of every suit RE resources are adjacent, time domain is identical.Due to same RE moneys
Resource block in source is identical in time domain, and time domain robustness is increased, so the present embodiment can be applicable
In the scene of UE high-speed motions.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can
To be completed by the related hardware of programmed instruction, foregoing program can be stored in an embodied on computer readable and deposit
In storage media, the program upon execution, performs the step of including above method embodiment；And foregoing storage
Medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than it is limited
System；Although the present invention is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art
It should be understood that：It can still modify to the technical scheme described in foregoing embodiments, or to it
Middle some technical characteristics carry out equivalent substitution；And these modifications or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a kind of descending DMRS resource multiplexing methods, it is characterised in that methods described includes：
Shared M sets RE resources, per N number of DMRS port using the OCC codes that length is N to same
Set RE resources be multiplexed, the resource block in the same set of RE resources be in time domain it is continuous, M,
N is positive integer.
2. according to the method described in claim 1, it is characterised in that：
N=4, the same set of RE resources by 4 over the frequency domain adjacent resource block constitute.
3. method according to claim 2, it is characterised in that：M=2.
4. according to the method described in claim 1, it is characterised in that：
N=2, the same set of RE resources are made up of 2 resource blocks that frequency domain is identical, time domain is adjacent.
5. method according to claim 4, it is characterised in that：M=4.
6. according to the method described in claim 1, it is characterised in that：
N=2, the same set of RE resources are by 2 frequency domains are adjacent, time domain identical resource block is constituted.
7. method according to claim 6, it is characterised in that：M=4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610137866.6A CN107181579A (en) | 2016-03-11 | 2016-03-11 | A kind of descending DMRS resource multiplexing methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610137866.6A CN107181579A (en) | 2016-03-11 | 2016-03-11 | A kind of descending DMRS resource multiplexing methods |
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| CN107181579A true CN107181579A (en) | 2017-09-19 |
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| CN201610137866.6A Withdrawn CN107181579A (en) | 2016-03-11 | 2016-03-11 | A kind of descending DMRS resource multiplexing methods |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123022A (en) * | 2010-01-08 | 2011-07-13 | 中兴通讯股份有限公司 | Method and device for mapping demodulation reference signals (DMRS) |
| CN102122985A (en) * | 2010-01-11 | 2011-07-13 | 株式会社Ntt都科摩 | MU-MIMO (Multi-User Multi-Input Multi-Output) transmission method |
| CN102148659A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Transmission power configuration method and device for demodulation reference signals |
| CN102158319A (en) * | 2010-02-12 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for pre-encoding based on hybrid multiplex demodulation reference symbols |
| CN102195923A (en) * | 2010-03-16 | 2011-09-21 | Lg电子株式会社 | Method and base station for transmitting reference signals, and method and user equipment for receiving reference signals |
| CN102202027A (en) * | 2010-03-26 | 2011-09-28 | 中兴通讯股份有限公司 | Method and device for generating pilot frequency sequence |
-
2016
- 2016-03-11 CN CN201610137866.6A patent/CN107181579A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123022A (en) * | 2010-01-08 | 2011-07-13 | 中兴通讯股份有限公司 | Method and device for mapping demodulation reference signals (DMRS) |
| CN102122985A (en) * | 2010-01-11 | 2011-07-13 | 株式会社Ntt都科摩 | MU-MIMO (Multi-User Multi-Input Multi-Output) transmission method |
| CN102148659A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Transmission power configuration method and device for demodulation reference signals |
| CN102158319A (en) * | 2010-02-12 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for pre-encoding based on hybrid multiplex demodulation reference symbols |
| CN102195923A (en) * | 2010-03-16 | 2011-09-21 | Lg电子株式会社 | Method and base station for transmitting reference signals, and method and user equipment for receiving reference signals |
| CN102202027A (en) * | 2010-03-26 | 2011-09-28 | 中兴通讯股份有限公司 | Method and device for generating pilot frequency sequence |
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Application publication date: 20170919 |