CN107181580A - Extend the method for the supported maximum UE port numbers of up DMRS - Google Patents
Extend the method for the supported maximum UE port numbers of up DMRS Download PDFInfo
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- CN107181580A CN107181580A CN201610140235.XA CN201610140235A CN107181580A CN 107181580 A CN107181580 A CN 107181580A CN 201610140235 A CN201610140235 A CN 201610140235A CN 107181580 A CN107181580 A CN 107181580A
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- dmrs
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
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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 method for extending the up supported maximum UE port numbers of DMRS, including：It is distributed to distinguish between different UE or by using different DMRS pectinations between all UE different port.In the case of the invention enables part bandwidth overlay in being transmitted in uplink multi-users, the up supported UE port numbers of DMRS are extended, and can preferably support the MU MIMO transmissions of multi-user.
Description
Technical field
The present invention relates to LTE communication field, more particularly to a kind of method for extending the up supported maximum UE port numbers of DMRS.
Background technology
In existing LTE system, DMRS (demodulated reference signal, Demodulation Reference Signals) is the reference symbol demodulated for data, and same UE different port is distinguished by carrying out cyclic shift to DMRS sequences.But in the case that difference UE fractional bandwidths are overlapping in up MUMIMO transmission, cannot be by cyclic shift or different root sequences come the orthogonal different UE of differentiation DMRS, therefore the orthogonal code that OCC is 2 is also introduced in LTE R10 versions, it is allowed to which still subcarrier there are the overlapping UE misplaced orthogonal transmissions simultaneously for most 2 different bandwidths or same band.
In FDMIMO, because base station end has more dual-mode antennas, more users will be supported to carry out MU-MIMO transmission simultaneously, and at most allow 2 UE in R10 in the overlapping lower orthogonal transmission DMRS of fractional bandwidth, or allow multiple UE to carry out MUMIMO scheduling in the case where bandwidth and frequency domain position are identical (now difference UE can be distinguished by different cyclic shifts), MUMIMO scheduling is so significantly limit, systemic loss of energy can be caused.
Based on this, it is necessary to propose a kind of method for extending orthogonal DMRS port quantity when UE fractional bandwidths are overlapping in up MUMIMO.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of method for extending the up supported maximum UE port numbers of DMRS, and this method includes：
It is distributed to distinguish between different UE or by using different DMRS pectinations between all UE different port.
It is preferred that, the above method is specially：High level configures different DMRS parameter groups for each UE, the broach spacing parameter and broach location parameter being distributed including DMRS pectinations, UE determines the frequency domain position shared by oneself DMRS according to DMRS parameter groups, if UE port number is more than 1, the DMRS sequences of its each port use different cyclic shifts.
It is preferred that, the above method is specially：High level configures different DMRS parameter groups for each UE, the broach spacing parameter and broach location parameter and used OCC sequences being distributed including DMRS pectinations, UE determines the frequency domain position shared by oneself DMRS according to the broach spacing parameter and broach location parameter, and produce DMRS signals according to the OCC sequences, if UE port number is more than 1, the DMRS sequences of its each port use different cyclic shifts.
It is preferred that, the above method is specially：High level configures different DMRS parameter groups for each UE each port, includes the broach spacing parameter and broach location parameter of DMRS pectinations distribution, and UE determines the frequency domain position shared by the DMRS of the port according to the DMRS parameter groups of each port.
It is preferred that, in the above method, the broach spacing parameter and broach location parameter of DMRS pectinations distribution are by high-rise dynamic configuration according to actual needs.
After the present invention, in uplink multi-users transmission in the case of the bandwidth overlay of part, the up supported UE port numbers of DMRS are extended, and can preferably support the MU-MIMO transmission of multi-user.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, the technical scheme in the embodiment of the present invention will be clearly and completely described below, 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.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Embodiment one
The DMRS sequences of all UE ports of the present embodiment are all distributed using pectination, i.e., be uniformly distributed in shared bandwidth.It is distributed to distinguish by using different DMRS pectinations between different UE, is distinguished again by different DMRS cyclic shifts between same UE different port.
The present embodiment specifically uses following methods step：
1.1, the broach spacing parameter N and broach location parameter parameter k, i.e. N that high level is distributed for each UE configuration DMRS pectinations are for indicating broach interval, and k is used to indicate broach position, and the N and k of the present embodiment can according to actual needs be configured by high level, can be with dynamic change.
(N, k) determines the frequency domain position shared by oneself DMRS to 1.2, UE foundation parameters, if UE port number is more than 1, the DMRS sequences of its each port use the cyclic shift differentiation between different cyclic shifts, i.e., each port using DMRS sequences.
Embodiment two
The present embodiment is similar with embodiment one, is not both to combine pectination distribution and OCC codes, distinguishes, is distinguished again by different DMRS cyclic shifts between same UE different port by using different DMRS pectinations distributions and OCC codes between different UE.
The present embodiment specifically uses following methods step：
1.1, high level configures the broach spacing parameter N and broach location parameter parameter k of DMRS pectinations distribution, and OCC sequences used in the DMRS sequences of the UE for each UE.
1.2, UE is according to parameter (N, k) frequency domain position shared by oneself DMRS is determined, and produce DMRS pilot signals according to OCC sequences, if UE port number is more than 1, then the DMRS sequences of its each port use the cyclic shift differentiation using DMRS sequences between different cyclic shifts, i.e., each port.
Embodiment three
The present embodiment is with the difference of embodiment one：Embodiment one is between different UE, and the present embodiment is to be distributed to distinguish by using different DMRS pectinations between all UE all different ports.
The present embodiment specifically uses following methods step：
1.1, high level for each UE each port configuration DMRS pectinations distribution broach spacing parameter N, and its shared broach location parameter k1,k2,…,kL, wherein L is UE port number, it is clear that L<=N.
1.2, UE according to parameter (N, k1,k2,…,kL) determine frequency domain position shared by the DMRS of oneself different port.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, and foregoing program can be stored in a computer read/write memory medium, and 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 its limitations；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. the method for the up supported maximum UE port numbers of DMRS of extension, it is characterised in that institute
The method of stating includes：
Divide between different UE or by using different DMRS pectinations between all UE different port
Cloth is distinguished.
2. according to the method described in claim 1, it is characterised in that methods described is specially：
High level configures different DMRS parameter groups for each UE, includes the broach of DMRS pectinations distribution
Spacing parameter and broach location parameter, UE determine the frequency domain shared by oneself DMRS according to DMRS parameter groups
Position, if UE port number is more than 1, the DMRS sequences of its each port are moved using different circulations
Position.
3. according to the method described in claim 1, it is characterised in that methods described is specially：
High level configures different DMRS parameter groups for each UE, includes the broach of DMRS pectinations distribution
Spacing parameter and broach location parameter and used OCC sequences, UE is according to the broach spacing parameter
The frequency domain position shared by oneself DMRS is determined with broach location parameter, and is produced according to the OCC sequences
DMRS signals, if UE port number is more than 1, the DMRS sequences of its each port are using different
Cyclic shift.
4. according to the method described in claim 1, it is characterised in that methods described is specially：
High level configures different DMRS parameter groups, including DMRS pectinations for each UE each port
The broach spacing parameter and broach location parameter of distribution, UE is determined according to the DMRS parameter groups of each port should
Frequency domain position shared by the DMRS of port.
5. the method according to claim 2~4 any one, it is characterised in that：
The broach spacing parameter and broach location parameter of DMRS pectinations distribution are moved according to actual needs by high level
State is configured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610140235.XA CN107181580A (en) | 2016-03-11 | 2016-03-11 | Extend the method for the supported maximum UE port numbers of up DMRS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610140235.XA CN107181580A (en) | 2016-03-11 | 2016-03-11 | Extend the method for the supported maximum UE port numbers of up DMRS |
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| CN107181580A true CN107181580A (en) | 2017-09-19 |
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| CN201610140235.XA Withdrawn CN107181580A (en) | 2016-03-11 | 2016-03-11 | Extend the method for the supported maximum UE port numbers of up DMRS |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI670959B (en) * | 2018-03-01 | 2019-09-01 | 大陸商電信科學技術研究院有限公司 | Uplink transmission method, terminal and base station |
| US11356220B2 (en) | 2017-01-06 | 2022-06-07 | Datang Mobile Communications Equipment Co., Ltd. | Uplink transmission method, terminal, and base station |
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| CN102427396A (en) * | 2011-08-15 | 2012-04-25 | 中兴通讯股份有限公司 | Information interaction method and base station for inter-cell uplink demodulation reference signals |
| CN103096389A (en) * | 2011-11-07 | 2013-05-08 | 华为技术有限公司 | Transmission method of uplink reference signals and user equipment and base station |
| CN103944665A (en) * | 2013-01-18 | 2014-07-23 | 中兴通讯股份有限公司 | Uplink DMRS transmitting method, device and system/ Transmitting method, device and system used for uplink DMRS |
| CN103974418A (en) * | 2013-01-24 | 2014-08-06 | 中兴通讯股份有限公司 | DMRS processing method and device |
| CN105075144A (en) * | 2013-04-01 | 2015-11-18 | 松下电器（美国）知识产权公司 | Transmission apparatus and control signal mapping method |
-
2016
- 2016-03-11 CN CN201610140235.XA patent/CN107181580A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427396A (en) * | 2011-08-15 | 2012-04-25 | 中兴通讯股份有限公司 | Information interaction method and base station for inter-cell uplink demodulation reference signals |
| CN103096389A (en) * | 2011-11-07 | 2013-05-08 | 华为技术有限公司 | Transmission method of uplink reference signals and user equipment and base station |
| CN103944665A (en) * | 2013-01-18 | 2014-07-23 | 中兴通讯股份有限公司 | Uplink DMRS transmitting method, device and system/ Transmitting method, device and system used for uplink DMRS |
| CN103974418A (en) * | 2013-01-24 | 2014-08-06 | 中兴通讯股份有限公司 | DMRS processing method and device |
| CN105075144A (en) * | 2013-04-01 | 2015-11-18 | 松下电器（美国）知识产权公司 | Transmission apparatus and control signal mapping method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11356220B2 (en) | 2017-01-06 | 2022-06-07 | Datang Mobile Communications Equipment Co., Ltd. | Uplink transmission method, terminal, and base station |
| TWI670959B (en) * | 2018-03-01 | 2019-09-01 | 大陸商電信科學技術研究院有限公司 | Uplink transmission method, terminal and base station |
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Application publication date: 20170919 |
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