CN106488572A - The control information method of sending and receiving of the multiuser MIMO of supercomposed coding - Google Patents
The control information method of sending and receiving of the multiuser MIMO of supercomposed coding Download PDFInfo
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- CN106488572A CN106488572A CN201510547664.4A CN201510547664A CN106488572A CN 106488572 A CN106488572 A CN 106488572A CN 201510547664 A CN201510547664 A CN 201510547664A CN 106488572 A CN106488572 A CN 106488572A
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- information
- dci
- specific identifier
- user
- signaling
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention proposes a kind of control information sending method of the multiuser MIMO of supercomposed coding, including：Notice signaling is sent to the UE at least two user equipment (UE)s for being overlapped encoding, in the notice signaling, carry the specific identification information of other UE at least two UE；Downlink Control Information DCI is sent at least two UE, comprising at least Data scheduling information of this UE in the DCI of each UE, cyclic redundancy check information CRC of the DCI of each UE is respectively adopted the specific identifier of each UE and is scrambled.Present invention achieves application of the supercomposed coding in LTE system, can lift the systematic function of existing MU-MIMO, and less to prior art and protocol impact.
Description
Technical field
The present invention relates to the control letter of the multiuser MIMO of wireless communication field, more particularly to supercomposed coding
Breath method of sending and receiving.
Background technology
With the further evolution of LTE, the performance of MU-MIMO is still had large improvement space.Even if
Originator precoding is non-fully orthogonal, while carrying out combined optimization from originator and receiving end, such as adopts adaptive point
Join transmit power and CW-IC receiver, NOMA is accessed comprising non-orthogonal multiple, can also improve
MUMIMO systematic function.A kind of method be based on supercomposed coding (Superposition Coding, SC)
Technology is a kind of hierarchical coding modulation technique, its basic thought be system according to different target transmission speed,
Channel status is quantified as the grade of different channels quality, each channel quantitative grade is determined corresponding to one
Target transmission speed.The corresponding transfer rate of the measured channel quantitative grade of matter is higher to be referred to as nearly user, matter
The corresponding transfer rate of the poor channel quantitative grade of amount is relatively low to be referred to as remote user.By two groups of signals respectively by difference
Targeted rate independently encoded, and be mapped on corresponding planisphere, then again which folded
Plus.When remote user receives, nearly user data is considered as noise, is directly processed.Nearly user is first by oneself
Signal is considered as the remote user data of noise solution, then by remote subscriber signal from removal in signal is received, to solve oneself number
According to using the other interference elimination of symbol level or the interference of codeword level elimination.
PDCCH carries up-downgoing control information (DCI), and the PDCCH information of different user is by corresponding to
The CRC of RNTI data separation, i.e. its DCI scrambled by RNTI.
The SI (RP-150496) of 3GPP newly project verification at present, studying is used for improving LTE system by supercomposed coding
Descending multi-user MIMO performance in system.As nearly user needs to solve remote user data, so nearly user
Need C-RNTI and the Downlink Control Information of known remote user, such as block length, modulation system, HARQ process
Etc. information, but how to obtain above- mentioned information, so as to nearly user carry out SIC operation also do not discuss.
Content of the invention
For the problems referred to above, the present invention proposes a kind of control information sending method of multiuser MIMO, bag
Include：
Notice signaling, institute are sent to the UE at least two user equipment (UE)s for being overlapped encoding
State the specific identification information that other UE at least two UE are carried in notice signaling；
Downlink Control Information DCI is sent at least two UE, comprising extremely in the DCI of each UE
The Data scheduling information of this UE few, the cyclic redundancy check information CRC difference of the DCI of each UE
Scrambled using the specific identifier of each UE.
Further, the UE at least two UE sends notice signaling, described logical
Know the specific identification information that other UE at least two UE are carried in signaling, including：
Radio resource control RRC signaling is sent to a UE, carry in the RRC signaling described
The specific identifier of other UE；Or,
RRC signaling is sent to a UE, carrying package contains other UE described in the RRC signaling
Specific identification information one group of specific identifier list, and to a UE send DCI, the DCI
In the specific identifier comprising other UE index information.
Further, also include the power of at least two UE in the DCI for being sent to a UE
Proportioning information.
Further, the power ratio information indicates that the power ratio of nearly user and remote user, nearly user are accounted for
The ratio of general power or remote user account for the ratio of general power；And/or the power ratio information takes 1 bit or 2
Bit.
Further, the specific identifier includes：C-RNTI or SPS-RNTI.
Further, also include that at least two users being overlapped encoding according to dispatching algorithm determination set
Standby UE, specially：
According to the channel condition information of UE, beam forming UE identical with precoding direction is selected as described
At least two UE of the supercomposed coding for carrying out；Or,
According to the channel condition information of UE, select beam forming identical with precoding direction and make debugging algorithm
The maximum UE of metric as the supercomposed coding for carrying out at least two UE.
Conceived based on identical, the present invention also proposes a kind of control information method of reseptance of multiuser MIMO,
Including：
The notice signaling that base station sends is received, carrying in the notice signaling carries out at least two of supercomposed coding
The specific identification information of other UE in user equipment (UE)；
Using the specific identifier of other UE and the specific identifier blind check Physical Downlink Control Channel of this UE
PDCCH, receives each UE Downlink Control Information DCI that base station sends, and obtains and includes in each DCI
At least each UE oneself Data scheduling information.
Further, the notice signaling that the reception base station sends, carries in the notice signaling and is overlapped
The specific identification information of other UE at least two user equipment (UE)s of coding, including：
The radio resource control RRC signaling of base station transmission is received, is obtained in the RRC signaling and carries
Other UE specific identifier；Or,
The RRC signaling of base station transmission is received, carrying package contains other UE described in the RRC signaling
Specific identification information one group of specific identifier list, and
Receive, using the specific identifier of this UE, the DCI that the base station sends, include in the acquisition DCI
The index information of the specific identifier of other UE, so as to finally obtain the specific identifier of other UE.
Further, also include at least two UE's in the DCI for receiving using this UE specific identifier
Power ratio information.
Further, the power ratio information indicates that the power ratio of nearly user and remote user, nearly user are accounted for
The ratio of general power or remote user account for the ratio of general power；And/or the power ratio information takes 1 bit or 2
Bit.
Further, also include：
Using the specific identifier data schedule information of other UE, the descending shared letter of downlink physical is received
The user data of other UE on road PDSCH；
From total user data for receiving and other UE being removed in signal, obtain the user data of this UE.
Further, the specific identifier includes：C-RNTI or SPS-RNTI.
The method of the present invention allows nearly user to obtain the Downlink Control Information of remote user, carries out interference and eliminates most
Solve the data message of oneself eventually, it is achieved that application of the supercomposed coding in LTE system, can be lifted existing
The systematic function of MU-MIMO, and less to prior art and protocol impact.
Description of the drawings
Fig. 1 is the basic handling block diagram of the embodiment of the present invention 1.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention is clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention.
One embodiment of the present of invention proposes a kind of control information of the multiuser MIMO of employing supercomposed coding
Sending method, including：Send to the UE at least two user equipment (UE)s for being overlapped encoding
Notice signaling, carries the specific identifier letter of other UE at least two UE in the notice signaling
Breath；Downlink Control Information DCI is sent at least two UE, comprising extremely in the DCI of each UE
The Data scheduling information of this UE few, the cyclic redundancy check information CRC difference of the DCI of each UE
Scrambled using the specific identifier of each UE.
In one alternate embodiment, the UE at least two UE sends and notifies letter
Order, carries the specific identification information of other UE at least two UE in the notice signaling, bag
Include：
Radio resource control RRC signaling is sent to a UE, carry in the RRC signaling described
The specific identifier of other UE；Or,
RRC signaling is sent to a UE, carrying package contains other UE described in the RRC signaling
Specific identification information one group of specific identifier list, and to a UE send DCI, the DCI
In the specific identifier comprising other UE index information.
In one alternate embodiment, described at least two are also included in the DCI for being sent to a UE
The power ratio information of UE.
In one alternate embodiment, the power ratio information indicate nearly user and remote user power it
Account for, than, nearly user, the ratio that the ratio of general power or remote user account for general power；And/or the power ratio information
Take 1 bit or 2 bits.
In one alternate embodiment, the specific identifier includes：C-RNTI or SPS-RNTI.
In one alternate embodiment, also include described according to dispatching algorithm determine be overlapped coding at least
Two user equipment (UE)s, specially：
According to the channel condition information of UE, beam forming UE identical with precoding direction is selected as described
At least two UE of the supercomposed coding for carrying out；Or,
According to the channel condition information of UE, select beam forming identical with precoding direction and make debugging algorithm
The maximum UE of metric as the supercomposed coding for carrying out at least two UE.
Conceived based on identical, one embodiment of the present of invention also proposes a kind of control of multiuser MIMO
Message receiving method, including：The notice signaling that base station sends is received, is carried in the notice signaling and is folded
Plus the specific identification information of other UE at least two user equipment (UE)s of coding；Using described other
The specific identifier of UE and the specific identifier blind check physical downlink control channel PDCCH of this UE, receive base station
The each UE Downlink Control Information DCI for sending, at least each UE's oneself included in acquisition each DCI
Data scheduling information.
In one alternate embodiment, the notice signaling that the reception base station sends, takes in the notice signaling
Band carries out the specific identification information of other UE at least two user equipment (UE)s of supercomposed coding, including：
The radio resource control RRC signaling of base station transmission is received, is obtained in the RRC signaling and carries
Other UE specific identifier；Or,
The RRC signaling of base station transmission is received, carrying package contains other UE described in the RRC signaling
Specific identification information one group of specific identifier list, and
Receive, using the specific identifier of this UE, the DCI that the base station sends, include in the acquisition DCI
The index information of the specific identifier of other UE, so as to finally obtain the specific identifier of other UE.
In one alternate embodiment, described in also including in the DCI for being received using this UE specific identifier at least
The power ratio information of two UE.
In one alternate embodiment, the power ratio information indicate nearly user and remote user power it
Account for, than, nearly user, the ratio that the ratio of general power or remote user account for general power；And/or the power ratio information
Take 1 bit or 2 bits.
In one alternate embodiment, also include：
Using the specific identifier data schedule information of other UE, the descending shared letter of downlink physical is received
The user data of other UE on road PDSCH；Other UE described are removed from total reception in signal
User data, obtain the user data of this UE.
The method of the present invention allows nearly user to obtain the Downlink Control Information of remote user, carries out interference and eliminates most
Solve the data message of oneself eventually, it is achieved that application of the supercomposed coding in LTE system, can be lifted existing
The systematic function of MU-MIMO, and less to prior art and protocol impact.
Embodiment 1
In the present embodiment, remote user C-RNTI and Downlink Control Information are handed down to nearly user by base station, closely
User first solves remote subscriber control information, then using interference cancellation techniques, obtains the nearly user PDSCH of oneself
Information.Fig. 1 is refer to, processing procedure comprises the steps.
Base station side：
The nearly user and remote user for being overlapped encoding is determined according to dispatching algorithm, determines that criterion includes：Wave beam
Shaping is identical with precoding direction, can also increase condition：Make the metric of debugging algorithm maximum.
The notice signaling for carrying remote user C-RNTI is sent to nearly user, and notice signaling can be RRC letter
(referring to embodiment 2) is made, can also be RRC signaling+DCI (referring to embodiment 3)；
Downlink Control Information DCI is sent, the data dispatch in the DCI of each user including at least this user is believed
Breath, the power ratio information (referring to embodiment 4) in the DCI of this user also comprising remote user and nearly user.
UE side：
Receive the notice signaling for carrying remote user C-RNTI；
Using the remote user C-RTNI and C-RNTI blind check PDCCH of this UE, include in acquisition DCI
Data scheduling information；
Using remote user C-RNTI data schedule information, remote user data is received, receive in signal from total
Remote user data is removed, obtains this user data.
Example 2：Remote user C-RNTI is issued and is received by RRC signaling
UE, eNB in connected state is determined by its channel condition information can be using supercomposed coding pairing
Remote user, the criterion of judgement is：Beam forming/precoding direction is identical, and makes the metric of debugging algorithm
(as total downstream rate) maximum user is as the remote user of this UE；
UE connects reallocation message by RRC and obtains the remote user C-RNTI that base station issues, i.e., connect in RRC
Connecing in reallocation message increases remote user C-RNTI field, and length is 16bit；
After UE obtains remote user C-RNTI, can be used to solve remote user data, so as to receive signal from total
Middle remove the interference of remote user data, obtain the descending PDSCH of this UE.
Embodiment 3：Base station connects reallocation message by RRC and notifies one group remote user C-RNTI information list
To nearly user, the DCI dynamic for then being carried by PDCCH issues the remote user C-RNTI of current superposition
Index.Specifically include：
UE, eNB in connected state is determined some to join using supercomposed coding by its channel condition information
To remote user's group；The criterion of judgement is：Beam forming/precoding direction identical user is selected as this
Remote user's candidate set of UE.
UE connects the C-RNTI list that reallocation message obtains remote user's candidate set by RRC, i.e., in RRC
Increase by one group remote user C-RNTI list in connection reallocation message, the length of each C-RNTI is 16bit.
After UE obtains remote user C-RNTI list, each downlink data dispatching eNB can all pass through
PDCCH therefrom indicates one or more remote user C-RNTI indexes for being overlapped coding with the UE,
UE obtains the C-RNTI of remote user from list according to index；UE can be with the remote user of the C-RNTI blind check
Downlink Control Information so that demodulate remote user data, after interference elimination treatment, finally give this
The descending PDSCH of UE.
Example 4：The form of power ratio field can be any one following.
The ratio of nearly user and remote user power
When being represented with 1bit
| Index | The ratio of nearly user and remote user power |
| 0 | 1/9 |
| 1 | 3/17 |
When being represented with 2bit
| Index | The ratio of nearly user and remote user power |
| 0 | 1/19 |
| 1 | 1/9 |
| 2 | 3/17 |
| 3 | 1/4 |
Nearly user accounts for the ratio of general power
When being represented with 1bit
| Index | Nearly user accounts for the ratio of general power |
| 0 | 1/10 |
| 1 | 3/20 |
When being represented with 2bit
| Index | Nearly user accounts for the ratio of general power |
| 0 | 1/20 |
| 1 | 1/10 |
| 2 | 3/20 |
| 3 | 1/5 |
Can also be：Remote user accounts for the ratio of general power.
One of ordinary skill in the art will appreciate that：The all or part of step for realizing said method embodiment can
To be completed by the related hardware of programmed instruction, aforesaid program can be stored in an embodied on computer readable and deposit
In storage media, the program upon execution, executes the step of including said method embodiment；And aforesaid 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：Above example is only in order to illustrating technical scheme, rather than which is limited
System；Although being described in detail to the present invention with reference to the foregoing embodiments, one of ordinary skill in the art
It should be understood that：Which still can be modified to the technical scheme described in foregoing embodiments, or to which
Middle some technical characteristics carry out equivalent；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 (12)
1. a kind of control information sending method of the multiuser MIMO of supercomposed coding, it is characterised in that bag
Include：
Notice signaling, institute are sent to the UE at least two user equipment (UE)s for being overlapped encoding
State the specific identification information that other UE at least two UE are carried in notice signaling；
Downlink Control Information DCI is sent at least two UE, comprising extremely in the DCI of each UE
The Data scheduling information of this UE few, the cyclic redundancy check information CRC difference of the DCI of each UE
Scrambled using the specific identifier of each UE.
2. method according to claim 1, it is characterised in that at least two UE
First UE sends notice signaling, carries other UE at least two UE in the notice signaling
Specific identification information, including：
Radio resource control RRC signaling is sent to a UE, carry in the RRC signaling described
The specific identifier of other UE；Or,
RRC signaling is sent to a UE, carrying package contains other UE described in the RRC signaling
Specific identification information one group of specific identifier list, and to a UE send DCI, the DCI
In the specific identifier comprising other UE index information.
3. method according to claim 1, it is characterised in that be sent to the DCI of a UE
In also include the power ratio information of at least two UE.
4. method according to claim 3, it is characterised in that the power ratio information indicates near
The power ratio of user and remote user, nearly user account for the ratio that the ratio of general power or remote user account for general power；With
/ or the power ratio information 1 bit of occupancy or 2 bits.
5. method according to claim 1, it is characterised in that the specific identifier includes：C-RNTI
Or SPS-RNTI.
6. method according to claim 1, it is characterised in that also include to be determined according to dispatching algorithm
At least two user equipment (UE)s for encoding are overlapped, specially：
According to the channel condition information of UE, beam forming UE identical with precoding direction is selected as described
At least two UE of the supercomposed coding for carrying out；Or,
According to the channel condition information of UE, select beam forming identical with precoding direction and make debugging algorithm
The maximum UE of metric as the supercomposed coding for carrying out at least two UE.
7. a kind of control information method of reseptance of the multiuser MIMO of supercomposed coding, it is characterised in that bag
Include：
The notice signaling that base station sends is received, carrying in the notice signaling carries out at least two of supercomposed coding
The specific identification information of other UE in user equipment (UE)；
Using the specific identifier of other UE and the specific identifier blind check Physical Downlink Control Channel of this UE
PDCCH, receives each UE Downlink Control Information DCI that base station sends, and obtains and includes in each DCI
At least each UE oneself Data scheduling information.
8. method according to claim 7, it is characterised in that receive the notice signaling that base station sends,
The spy of other UE at least two user equipment (UE)s for carrying out supercomposed coding is carried in the notice signaling
Determine identification information, including：
The radio resource control RRC signaling of base station transmission is received, is obtained in the RRC signaling and carries
Other UE specific identifier；Or,
The RRC signaling of base station transmission is received, carrying package contains other UE described in the RRC signaling
Specific identification information one group of specific identifier list, and
Receive, using the specific identifier of this UE, the DCI that the base station sends, include in the acquisition DCI
The index information of the specific identifier of other UE, so as to finally obtain the specific identifier of other UE.
9. method according to claim 7, it is characterised in that received using this UE specific identifier
DCI in also include the power ratio information of at least two UE.
10. method according to claim 9, it is characterised in that the power ratio information indicates near
The power ratio of user and remote user, nearly user account for the ratio that the ratio of general power or remote user account for general power；With
/ or the power ratio information 1 bit of occupancy or 2 bits.
11. methods according to claim 7, it is characterised in that also include：
Using the specific identifier data schedule information of other UE, the descending shared letter of downlink physical is received
The user data of other UE on road PDSCH；
From total user data for receiving and other UE being removed in signal, obtain the user data of this UE.
12. methods according to claim 7, it is characterised in that the specific identifier includes：C-RNTI
Or SPS-RNTI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547664.4A CN106488572A (en) | 2015-08-31 | 2015-08-31 | The control information method of sending and receiving of the multiuser MIMO of supercomposed coding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510547664.4A CN106488572A (en) | 2015-08-31 | 2015-08-31 | The control information method of sending and receiving of the multiuser MIMO of supercomposed coding |
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| CN201510547664.4A Withdrawn CN106488572A (en) | 2015-08-31 | 2015-08-31 | The control information method of sending and receiving of the multiuser MIMO of supercomposed coding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019154386A1 (en) * | 2018-02-11 | 2019-08-15 | 索尼公司 | Device and method in radio communication system, and computer-readable storage medium |
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| CN103095444A (en) * | 2011-11-07 | 2013-05-08 | 上海贝尔股份有限公司 | Method and equipment sending and receiving downlink control information based on multi-user multi-input multi-output (MIMO) transmission |
| WO2014179953A1 (en) * | 2013-05-08 | 2014-11-13 | 华为技术有限公司 | Superposition coding method, apparatus and system |
| WO2015024227A1 (en) * | 2013-08-22 | 2015-02-26 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for performing downlink mu-mimo transmission |
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| CN102301819A (en) * | 2008-11-21 | 2011-12-28 | 皮恩-汉·霍 | System, Method, And Computer Program For Superposition Coded Multicast With A Single Modulation Scheme |
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| WO2014179953A1 (en) * | 2013-05-08 | 2014-11-13 | 华为技术有限公司 | Superposition coding method, apparatus and system |
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| WO2019154386A1 (en) * | 2018-02-11 | 2019-08-15 | 索尼公司 | Device and method in radio communication system, and computer-readable storage medium |
| CN111213425A (en) * | 2018-02-11 | 2020-05-29 | 索尼公司 | Apparatus and method in wireless communication system, computer readable storage medium |
| US11356153B2 (en) | 2018-02-11 | 2022-06-07 | Sony Corporation | Device and method in radio communication system, and computer-readable storage medium |
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