CN104105202B - Communication means based on new carrier type and equipment - Google Patents
Communication means based on new carrier type and equipment Download PDFInfo
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- CN104105202B CN104105202B CN201310113449.4A CN201310113449A CN104105202B CN 104105202 B CN104105202 B CN 104105202B CN 201310113449 A CN201310113449 A CN 201310113449A CN 104105202 B CN104105202 B CN 104105202B
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Abstract
The present invention relates to a kind of methods communicated based on new carrier type, including send demodulated reference signal of the demodulated reference signal (DM RS) as system signal and data-signal；Wherein, it is sent as the DM RS signals of the demodulated signal of the system signal using the configuration of preset physical resource；One kind is selected from the configuration of a variety of DM RS physical resources according to systematic parameter, and is sent as the DM RS signals of the demodulated signal of the data-signal using the configuration.The invention further relates to corresponding products for executing the above method.
Description
Technical field
The invention mainly relates to the communication technologys, particularly, are related to based on new carrier type (New Carrier Type, letter
Claim NCT) communication means and equipment.
Background technology
In third generation partner program (3GPP) in long term evolution (Long Term Evolution, abbreviation LTE) technology
Version 8 and 9 (abbreviation Rel.8 and 9) system in, public reference signal (cell-specific reference signal,
Abbreviation CRS) it is responsible for the demodulation of system signal and data-signal, wherein the system signal includes Physical Downlink Control Channel
Public search space (the common search of (physical downlink control channel, abbreviation PDCCH)
Space, abbreviation CSS) signal and the specific search space of user (user specific search space, abbreviation USS) signal,
The system signal further includes Physical Broadcast Channel (physical broadcast channel, abbreviation PBCH) signal.It is described
Data-signal includes physical down link sharing channel (physical downlink shared channel, abbreviation PDSCH)
Signal.In addition, CRS is also responsible for measuring wireless resource management (the radio resource for being selected and being switched based on cell
Management, abbreviation RRM)/Radio Link Management (radio link management, abbreviation RLM), and measure and be based on
The channel quality of data dispatch.
Arrived in the system of Rel.10, introduce demodulated reference signal (demodulation reference signal,
Abbreviation DM-RS) carry out demodulated data signal, also introduce channel state information reference signals (channel state
Information reference signal, abbreviation CSI-RS) come be responsible for measure the channel quality based on data dispatch, to
Instead of the part of functions of CRS.
In the system of Rel.11, DM-RS is also responsible for the USS signals in demodulation PDCCH.However, in existing system, still
The CSS signals and PBCH signals in PDCCH are so demodulated using CRS.
Currently, in order to avoid DM-RS and primary synchronization signal (primary synchronization signal, abbreviation
PSS) the conflict between secondary synchronization signal (secondary synchronization signal, abbreviation SSS), uses tune
Whole PSS/SSS and relative positions of the DM-RS in Physical Resource Block (physical resource block, abbreviation PRB) are right
The occupied part physical resource punchings of DM-RS, or forbid transmitting the side of PSS/SSS signals in the PRB of transmission PDSCH
Method.
But the above method is all no to be solved the problems, such as to demodulate CSS and PBSH in independent NCT systems, because
There is no CRS signals for demodulating system signal as CSS and PBSH in independent NCT systems.
Invention content
Due to the above problems, and in view of the diversity of future cellular system, single DM-RS designs may nothing
Method meets different types of system requirements, and the present invention is using the DM-RS signals configured with adjustable physical resource come corresponding
System and data-signal are demodulated
One aspect of the present invention discloses a kind of method communicated based on new carrier type, including sends demodulation reference letter
Number demodulated signal of (DM-RS) as system signal and data-signal；Wherein, using preset physical resource configuration send as
The DM-RS signals of the demodulated signal of the system signal；It is selected from the configuration of a variety of DM-RS physical resources according to systematic parameter
One kind is selected, and is sent as the DM-RS signals of the demodulated signal of the data-signal using the configuration.
Particularly, the above method further includes sending indication signaling to inform that user equipment is sent as the demodulated data signal
Physical resource configuration categories used by the DM-RS signals of signal.
Particularly, the system signal includes at least Physical Broadcast Channel, and the common search of Physical Downlink Control Channel is empty
Between signal.
Particularly, number and/or channel quality and/or cell coverage area of the systematic parameter including at least antenna.
Particularly, the indication signaling includes at least descending control signaling or radio resource control signaling.
Particularly, the above method further includes carrying out precoding to the DM-RS signals.
Particularly, the above method further includes receiving the feedback signal for coming from user equipment, and sentence according to the feedback signal
Break the channel quality.
Particularly, the above method further includes periodically or updating the systematic parameter based on base station triggers and adjusting accordingly
Physical resource configuration categories used by the whole DM-RS signals.
Another aspect of the present invention, which also discloses, a kind of executing the base that any of the above-described method is communicated based on new carrier type
It stands.
Another aspect of the present invention discloses a kind of method communicated based on new carrier type, including：It is received from base station
System and/or data-signal and DM-RS signals for demodulating the system and/or data-signal；Judge whether to receive
Indication signaling in relation to the physical resource configuration for sending the DM-RS signals；In the case where not receiving the indication signaling,
Default base station sends the DM-RS signals using preset default physical resource configuration, is read according to the default resource distribution
The DM-RS signals are taken, and the system signal is demodulated using the DM-RS signals；And receiving the finger
In the case of showing signaling, the DM-RS signals are determined according to the indication signaling and preset physical resource configuration index
Physical resource configuration categories are read the DM-RS signals according to identified resource distribution type, and are believed using the DM-RS
Number the data-signal is demodulated.
Particularly, the signaling includes at least descending control signaling or radio resource control signaling.
Particularly, the system signal includes at least Physical Broadcast Channel, and the common search of Physical Downlink Control Channel is empty
Between signal.
Particularly, the above method further includes sending about channel quality to base station periodically or based on base station triggers
Feedback.
Particularly, the above method further includes being decoded to the DM-RS signals Jing Guo precoding.
Another aspect of the present invention additionally provides a kind of executing what any of the above-described method was communicated based on new carrier type
User equipment.
Using method of the present invention and product, either system signal or data-signal all may be used in NCT systems
To be demodulated using DM-RS signals, and the physical resource configuration mode by adjusting DM-RS according to system situation improves
The utilization rate of system resource.
Description of the drawings
Fig. 1 is a kind of flow chart of the method communicated based on NCT described according to one embodiment of present invention；
Fig. 2 is a kind of flow chart of the method communicated based on NCT described according to another embodiment of the present invention；
Fig. 3 is that the default physics for demodulating the DM-RS signals for being signal described according to an embodiment of the present invention provides
Source configuration schematic diagram；
Fig. 4 (a) is described according to one embodiment of present invention a variety of objects of DM-RS signals for demodulated data signal
Manage a kind of schematic diagram in resource distribution；
Fig. 4 (b) is described according to one embodiment of present invention a variety of objects of DM-RS signals for demodulated data signal
Manage another schematic diagram in resource distribution；
Fig. 5 is described according to one embodiment of present invention RRC indication signalings；And
Fig. 6 is the described according to one embodiment of present invention communication system based on NCT.
Specific implementation mode
The manufacture and use of embodiments herein is discussed further below.However, it should be understood that the present invention provides
Many feasible inventive concepts that can implement under various specific backgrounds.The specific embodiment discussed is only to illustrate to manufacture
Concrete mode with the present invention is used, does not limit the scope of the invention.
Fig. 1 show the flow chart of the method communicated based on NCT described according to an embodiment of the present invention.The party
Method can be as shown in Figure 6 NCT communication systems in base station 602 execute.In step 104, base station 602 first determines whether to be sent out
The DM-RS signals sent are to be used for demodulating system signal or data-signal.Wherein, the system signal may include PBCH,
PDSCH and/or CSS signals.The data-signal may include PDSCH signals.
If the DM-RS to be sent is the demodulated signal of system signal, base station 602 is determined in step 106 using pre-
The default physical resource configuration being first arranged sends the DM-RS signals.It, can there are many different according to different situation and needs
Default DM-RS physical resources configuration mode.It is exactly these default physics moneys no matter to use which kind of configuration mode, common requirement
The density of the occupied physical resource units of DM-RS and position are fixed in the configuration mode of source, and in base station and user equipment
Before being communicated, this default resources employment methods have been stored in advance among base station and user equipment.
Fig. 3 (a) show existing DM-RS physical resources configuration mode, and DM-RS signals generally occupy in each pair of PRB
24 resource units, are divided into 6 groups, every group of 4 units, and the spacing between every group is 3 units.In conventional cyclic prefix
In the case of (normal CP normal SF), DM-RS is distributed in a slot 5 and 6 position；In the feelings of extended cyclic prefix
Under condition (extended CP normal SF), DM-RS is distributed in a slot 4 and 5 position.
Fig. 3 (b) show the default DM-RS physical resources configuration described according to an embodiment of the present invention.In each pair of PRB
Middle DM-RS signals occupy 16 physical resource units, are divided into 8 groups, every group of 2 units, and the spacing between every group is 2 lists
Member.The diminution of spacing improves the robustness received to system signal.DM-RS in Fig. 3 (b) is distributed in even timeslots
2 and 3 position in 0 and 1 position and odd numbered slots.In view of the traditional location of PBCH, such configuration mode is more advantageous
In the accuracy for improving conveyer system signal.In addition, the DM-RS density in Fig. 3 (b) decreases compared to traditional configuration,
Save more physical resources.
By using shown in such as Fig. 3 (b) or the configuration of other kinds of default DM-RS physical resources, the use in NCT cells
Family equipment can after powering smoothly demodulate system signal, and start the initial communication with base station.
If the DM-RS signals to be sent are the demodulated signals of data-signal, base station 602 is in step 108 according to being
System parameter selects a kind of physical resource configuration mode as DM-RS signals from a variety of physical resource configuration modes.The system
System parameter may include the coverage area etc. of the antenna number in system, channel quality and/or cell.
According to one embodiment of present invention, antenna number is more in system, and the occupied physical resource of DM-RS signals is got over
It is more.Channel quality is better, and the occupied physical resource of DM-RS signals can be fewer.The range of MPS process is smaller, DM-RS letters
Number occupied physical resource can also be fewer.
Table 1 lists several in a variety of possible DM-RS physical resources configuration modes.Those of ordinary skill in the art exist
It can be designed that various resources employment methods under the premise of without departing from the present invention.Matching in table 1 sets to 0 as default DM-RS signals
Physical resource configures, the DM-RS for sending demodulating system signal.
Configuration 1 and 2 (not shown)s in table 1 are in the system that is directed in the case of number of antennas difference, using tradition
DM-RS physical resource configuration modes transmission for demodulated data signal DM-RS.According to one embodiment of present invention, match
It can configure 2 half, but do not have occupied DM-RS resources list in configuring 1 to set 1 occupied physical resource unit number
Member can be retained, without be used to transmit data-signal.
Configuration 3 and 4 in table 1 corresponds respectively to configure shown in Fig. 4 (a) and (b).According to the analysis to systematic parameter,
The occupied physical resource density of DM-RS reduces accordingly in configuration 3 and 4, and the saved resource unit of institute can be used for passing
Send data-signal.
Table 1
In step 110, base station 602 sends the physical resource configuration side of signaled DM-RS signals to user equipment 604
Formula.According to one embodiment of present invention, the signaling can be radio resource control signaling (radio resource
Control, abbreviation RRC).Fig. 5 is shown to be used using the DM-RS signals transmitted by RRC signaling instruction user equipment base station
Physical resource configuration mode an example.Wherein 502 be the part for indicating the configuration of DM-RS physical resources.This field is common
Technical staff can otherwise make identical instruction in RRC signaling wthout departing from the scope of the present invention.
According to another embodiment of the present invention, downlink channel control signaling (downlink control may be used
Information, abbreviation DCI) indicate that the physical resource of user equipment DM-RS signals configures.Those skilled in the art can be
The structure of traditional DCI signalings is updated in different ways under the premise of without departing from the scope of the invention, on being added
State instruction content.Since DCI is top signaling, and RRC is bottom signaling, therefore the renewal speed of DCI signalings can be higher than RRC
Signaling, to dynamically update DM-RS physical resource configuration instructions.
According to one embodiment of present invention, base station 602 can also be before sending DM-RS signals, in step 102 to this
DM-RS signals carry out precoding.In order to retain the original sequence of DM-RS signals and structure, according to one embodiment of present invention,
Precoding (the rank-1pre- that the corresponding code books of index0 are 1 into row rank to DM-RS signals may be used in base station 602
coding)。
Fig. 2 show the communication means flow chart based on NCT described according to an embodiment of the present invention.This method can be with
The user equipment 604 in NCT communication systems as shown in Figure 6 executes.In step 202, user equipment 604 is first from base station
602 receive system signal and/or data-signal and the DM-RS signals for demodulating the system signal and/or data-signal.
In step 206, user equipment 604 judges whether to receive the indication signaling configured about DM-RS physical resources.
If being not received by indication signaling, in step 208, it is system signal that user equipment 604, which gives tacit consent to the DM-RS,
Demodulated signal, and use default physical resource configuration and send.According to one embodiment of present invention, user equipment
604 obtain the specifying information of default physical resource configuration according to configuration index therein is stored in advance in shown in such as table 1, and
DM-RS signals are read according to the configuration, to be demodulated to system signal using DM-RS signals.
If user equipment 604 has received the physical resource configuration signal for the related DM-RS that base station 602 is sent,
Step 210, user equipment 604 compares the resource as shown in Table 1 for being stored in advance in the user equipment according to the instruction in signaling
Configuration index selects that specified configuration from the configuration of several DM-RS physical resources, and reads DM-RS letters according to the configuration
Number, to be demodulated using the DM-RS data signal signals.
According to one embodiment of present invention, in step 204, user equipment 604 can to the DM-RS Jing Guo precoding into
Row decoding.
According to one embodiment of present invention, user equipment 604 can also be periodically or as requested to base station 602
Send the feedback in relation to channel quality.
Fig. 6 show the communication network based on NCT.According to one embodiment of present invention, wherein base station 602 and user set
It may be respectively used for executing for 604 one or more in above-mentioned a variety of methods.
Those skilled in the art are easy for learning, can change material and method within the scope of the invention.Should also
Understand, other than the specific context for illustrating embodiment, the present invention provides many applicable inventive concepts.
Correspondingly, appended claims be intended to include by such process, machine, manufacture, substance synthesis, device, method or step
In the range of them.
Claims (13)
1. a kind of method communicated based on new carrier type, including：
Judge that the demodulated reference signal to be sent (DM-RS) is to be used for demodulating system signal or data-signal；Wherein,
In the case where the demodulated reference signal to be sent is the demodulated signal of the system signal, preset object is utilized
Manage the DM-RS signals for the demodulated signal that resource distribution is sent as the system signal；
In the case where the demodulated reference signal to be sent is the demodulated signal of the data-signal, according to systematic parameter
One kind is selected from the configuration of a variety of DM-RS physical resources, and is sent as the demodulated signal of the data-signal using the configuration
The DM-RS signals.
2. the method as described in claim 1 further includes, sends indication signaling and inform that user equipment is sent as data letter
Physical resource configuration categories used by the DM-RS signals of number demodulated signal.
3. the method as described in claim 1, wherein the system signal includes at least Physical Broadcast Channel and/or physical down
The public search space signal of control channel.
4. the method as described in claim 1, wherein the systematic parameter includes at least the number and/or channel quality of antenna
And/or cell coverage area.
5. method as claimed in claim 2, wherein the indication signaling includes at least descending control signaling or radio resource control
Signaling processed.
6. the method as described in claim 1 further includes, precoding is carried out to the DM-RS signals.
7. method as claimed in claim 4 further includes, the feedback signal for coming from user equipment is received, and according to the feedback letter
Number judge the channel quality.
8. the method as described in claim 1 further includes, periodically or based on base station triggers the systematic parameter and phase are updated
Physical resource configuration categories used by the adjustment DM-RS signals answered.
9. a kind of method communicated based on new carrier type, including：
DM-RS signals from base station receiving system and/or data-signal and for demodulating the system and/or data-signal；
Judge whether to receive the indication signaling in relation to the physical resource configuration for sending the DM-RS signals；
In the case where not receiving the indication signaling, default base station is using described in preset default physical resource configuration transmission
DM-RS signals read the DM-RS signals according to the default resource distribution, and using the DM-RS signals to the system
System signal is demodulated；And
It is true according to the indication signaling and preset physical resource configuration index in the case where receiving the indication signaling
The physical resource configuration categories of the fixed DM-RS signals read the DM-RS signals according to identified resource distribution type,
And the data-signal is demodulated using the DM-RS signals.
10. method as claimed in claim 9, wherein the signaling includes at least descending control signaling or wireless heterogeneous networks are believed
It enables.
11. method as claimed in claim 9, wherein the system signal includes at least under Physical Broadcast Channel and/or physics
The public search space signal of row control channel.
12. method as claimed in claim 9 further includes, periodically or based on base station triggers to base station send about channel
The feedback of quality.
13. method as claimed in claim 9 further includes, the DM-RS signals Jing Guo precoding are decoded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113449.4A CN104105202B (en) | 2013-04-02 | 2013-04-02 | Communication means based on new carrier type and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113449.4A CN104105202B (en) | 2013-04-02 | 2013-04-02 | Communication means based on new carrier type and equipment |
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| CN104105202A CN104105202A (en) | 2014-10-15 |
| CN104105202B true CN104105202B (en) | 2018-10-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011085702A1 (en) * | 2010-06-28 | 2011-07-21 | 华为技术有限公司 | Resource configuration methods for dedicated demodulation reference signal and relevant apparatuses |
| CN102170646A (en) * | 2010-02-26 | 2011-08-31 | 电信科学技术研究院 | Method, system and device for configuring backhaul link resources of relay system |
| CN102340382A (en) * | 2011-10-28 | 2012-02-01 | 电信科学技术研究院 | Method and device for configuring DMRS (demodulation reference signal) scrambling code sequence |
| 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
- 2013-04-02 CN CN201310113449.4A patent/CN104105202B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170646A (en) * | 2010-02-26 | 2011-08-31 | 电信科学技术研究院 | Method, system and device for configuring backhaul link resources of relay system |
| WO2011085702A1 (en) * | 2010-06-28 | 2011-07-21 | 华为技术有限公司 | Resource configuration methods for dedicated demodulation reference signal and relevant apparatuses |
| CN102340382A (en) * | 2011-10-28 | 2012-02-01 | 电信科学技术研究院 | Method and device for configuring DMRS (demodulation reference signal) scrambling code sequence |
| 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) |
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