CN110072290A - A kind of communication means and device of LAA system - Google Patents
A kind of communication means and device of LAA system Download PDFInfo
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- CN110072290A CN110072290A CN201910295953.8A CN201910295953A CN110072290A CN 110072290 A CN110072290 A CN 110072290A CN 201910295953 A CN201910295953 A CN 201910295953A CN 110072290 A CN110072290 A CN 110072290A
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Abstract
The invention proposes the communication means and device of a kind of LAA system.In step 1, UE receives high-level signaling and determines following information: the frequency band of .K carrier wave of the first information；The physical resource that each RS resource group in the second RS resource group of information .K occupies in subframe；The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain, at least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave of the Target Wireless signal is deployed in unlicensed spectrum.Method of the invention effectively improves the performance of channel estimation under the premise of not increasing downlink RS redundancy overhead, so that the LAALTE after LBT technology introduces keeps maximum forward compatibility.
Description
The application is the divisional application of following original application:
-- the applying date of original application: on November 12nd, 2014
-- the application number of original application: 201410635223.5
-- the invention and created name of original application: a kind of communication means and device of LAA system
Technical field
The present invention relates to the schemes that unlicensed spectrum communication is utilized in wireless communication system, more particularly to based on LTE
The communication means for unlicensed spectrum (Unlicensed Spectrum) of (Long Term Evolution, long term evolution)
And device.
Background technique
Traditional 3GPP (3rd Generation Partner Project, third generation cooperative partner program) LTE system
In, data transmission can only occur on authorization frequency spectrum, however as increased dramatically for portfolio, especially in some urban areas,
Authorization frequency spectrum is likely difficult to meet the needs of portfolio.62 plenary sessions of 3GPP RAN discuss a new research topic, i.e.,
The comprehensive research (RP-132085) of unlicensed spectrum, main purpose is the Non- of LTE of the research and utilization in unlicensed spectrum
Standalone (dependent) deployment, so-called Non-standalone refer to that frequency spectrum is wanted and authorized in the communication in unlicensed spectrum
On serving cell it is associated.One intuitive method is the CA (Carrier reused in existing system as far as possible
Aggregation, carrier wave polymerization) concept, that is, be deployed in authorization frequency spectrum on serving cell as PCC (Primary
Component Carrier, main carrier), the serving cell in unlicensed spectrum is deployed in as SCC (Secondary
Component Carrier, secondary carrier).For unlicensed spectrum, it is contemplated that uncontrollable/prediction of its interference level, LBT
(Listen Before Talk, first listen to and send afterwards) technology can effectively avoid the interference between LTE system and other systems
And the interference inside LTE system between different operators equipment.In RAN#64 plenary session (seminar), in unlicensed spectrum
Communication by Uniform Name be LAA (License Assisted Access, authorization frequency spectrum auxiliary access).
For LTE LAA, a problem in need of consideration is (due to the introducing of LBT technology) traditional semi-static mode
The downlink RS (Reference Signal, reference signal) for channel measurement of scheduling may be in certain (uncertain) tune
It can not be sent in degree subframe.In traditional LTE, the downlink RS for channel measurement can also assist UE, and (User Equipment is used
Family equipment) carry out the channel estimation based on DMRS (Demodulation Reference Signal, demodulated reference signal), institute
Stating for the downlink RS of channel measurement includes CRS (Cell RS, cell reference signals) and CSI-RS (Channel Status
Indicator RS, channel status indicate reference signal).In LTE LAA, the downlink RS for channel measurement is in part
Missing on frame may seriously affect PDSCH (Physical Downlink Shared Channel, the shared letter of physical down
Road) receptivity.In addition, if the long period can not receive downlink RS on given carrier wave, UE (User Equipment,
User equipment) down-going synchronous may be lost and then cause frequently to carry out downlink presynchronization operation on given carrier wave.
In view of the above-mentioned problems, the invention discloses the communication means and device of a kind of LAA system.
Summary of the invention
The invention discloses a kind of methods in UE, wherein includes the following steps:
Step A. receives high-level signaling and determines following information:
The frequency band of .K carrier wave of the first information
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located (Co-
located)。
Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain,
At least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave of the Target Wireless signal is deployed in
Unlicensed spectrum.
As one embodiment, the high-level signaling is RRC (Radio Resource Control, wireless heterogeneous networks)
Signaling.As one embodiment, the physical resource includes { airspace, time domain, frequency domain } resource.It is described as one embodiment
Physical resource includes { airspace, time domain, frequency domain, code domain (Orthogonal Covering Code, orthogonal covering codes) } resource.
Above-mentioned airspace refers to RS antenna port.As one embodiment, the RS resource group includes by positive integer RS days
Line end mouth, each RS antenna port occupy certain { time domain, frequency domain, code domain } resource.Two antenna ports are described half co-located
Refer to that the large scale characteristic of wireless signal channel experienced that one of antenna port is sent can be from another antenna end
Infer in the wireless signal channel experienced that mouth is sent and obtain, the large scale characteristic includes that { time delay expansion, Doppler expand
One or more of exhibition, Doppler frequency shift, average gain, average delay }.Specifically retouching about " half is co-located "
It states with reference to TS36.211.
As one embodiment, the Target Wireless signal is in EPDCCH (Enhanced Physical Downlink
Control Channel, the downlink physical control channel of enhancing) on transmit, third information is by EPDCCH-Config IE
(Information Element, information unit) instruction.As one embodiment, the Target Wireless signal is uploaded in PDSCH
Defeated, third information is indicated by PDSCH-Config IE.As one embodiment, the K carrier wave is all deployed in unauthorized frequency
Spectrum.As one embodiment, the K carrier wave is continuous on frequency domain.
Continuous carrier wave can ensure that stronger channel relevancy, be conducive to cross-carrier estimation large scale characteristic.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Reception downlink RS of the step B. in the K RS resource group, determination are used for transmission the Target Wireless signal
The large scale characteristic of wireless channel
Step C. receives the Target Wireless signal according to the large scale characteristic of the wireless channel.
As one embodiment, the UE in (and the wireless channel has temporal correlation) given time window
Downlink RS is received in the K RS resource group, with the large scale characteristic of the determination wireless channel, the given time window is institute
State what UE was voluntarily determined.As one embodiment, the UE is in (and the wireless channel has frequency dependence) S RS money
Downlink RS is received in the group of source, with the large scale characteristic of the determination wireless channel, the S RS resource group is that the UE is voluntarily true
Fixed, the S RS resource group is the subset of the K RS resource group.
Specifically, according to an aspect of the present invention, which is characterized in that the second information includes K group sub-information, the K group
Sub-information indicates respectively the physical resource that the K RS resource group occupies in subframe, and every group of sub-information includes following one:
- .CRS port number and CRS frequency shift (FS)
- .CSI-RS port number and CSI-RS configuration.
If the second information includes CRS port number and CRS frequency information, corresponding RS resource group reuses in subframe
The running time-frequency resource of CRS；If the second information includes CSI-RS port number and CSI-RS configuration, corresponding RS resource group is in subframe
The interior running time-frequency resource for reusing CSI-RS.The CRS port number is one in { 1,2,4 }, the CRS frequency shift (FS) be 0,1,
2,3,4,5 } one in.The CSI-RS port number is one in { 1,2,4,8 }, the CSI-RS configuration
(Configuration) it is indicated by resourceConfig IE, with specific reference to the table 6.10.5.2-1 in TS36.211.
As one embodiment, the second information further includes generator index, generator index be less than 504 it is non-negative
Integer.As a sub- embodiment of above-described embodiment, the generator indexes the initial of the RS sequence generator of the CRS
The mapping relations of value reuseMapping relations to the initial value of the RS sequence generator of the CRS (specifically describe reference
The 6.10.1.1 of TS36.211 is saved).As the another sub- embodiment of above-described embodiment, the generator indexes the CSI-
The mapping relations of the initial value of the RS sequence generator of RS reuseTo the initial value of the RS sequence generator of the CSI-RS
Mapping relations (specifically describe with reference to TS36.211 6.10.5.1 save).
Specifically, according to an aspect of the present invention, which is characterized in that the K RS resource group shares identical second
Information, the second information includes following one:
- .CRS port number and CRS frequency shift (FS)
- .CSI-RS port number and CSI-RS configuration.
The advantages of above-mentioned aspect is the expense for saving high-level signaling, i.e., the described K RS resource group shares identical subframe
Interior configuration (in addition to carrier bandwidths may be different).In addition, if HARQ (Hybrid belonging to the Target Wireless signal
Automatic Repeat Request, hybrid automatic repeat-request) process (Process) includes the PRBP on different carrier waves
When (Physical Resource Block Pair, Physical Resource Block to), above-mentioned aspect is conducive to the HARQ process not
With sharing identical TM (Transmission Mode, transmission mode) on carrier wave.
Specifically, according to an aspect of the present invention, which is characterized in that each RS resource group actually accounts in the time domain
Subframe is configured jointly by the high-level signaling and physical layer signaling, or is only configured by physical layer signaling.
As one embodiment, for each RS resource group, the subframe actually occupied includes that the high-level signaling refers to
The all or part of subframe in corresponding sub-frame set shown, all or part of subframe by physical layer signaling configure or
It is voluntarily determined by UE.As one embodiment, for each RS resource group, the subframe actually occupied includes being located at the height
Subframe that is except the corresponding sub-frame set of layer signaling instruction and being indicated by physical layer signaling.As one voluntarily determined
Embodiment, UE are determined according to the parameters such as power or channel statistical feature are received.
Specifically, according to an aspect of the present invention, which is characterized in that the Target Wireless signal transmits on PDSCH,
Third information is indicated by PDSCH-Config IE.
As one embodiment, for giving stator frame, a carrier wave of the Target Wireless signal in the K carrier wave
Upper transmission, for multiple subframes, the Target Wireless signal can transmit on multiple carrier waves in the K carrier wave.
The invention discloses a kind of methods in base station, wherein includes the following steps:
Step A. sends high-level signaling and indicates following information:
The frequency band of .K carrier wave of the first information
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.
Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain,
At least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave of the Target Wireless signal is deployed in
Unlicensed spectrum.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Transmission downlink RS of the step B. in the K RS resource group
Step C. sends the Target Wireless signal.
Specifically, according to an aspect of the present invention, which is characterized in that the second information includes K group sub-information, the K group
Sub-information indicates respectively the physical resource that the K RS resource group occupies in subframe, and every group of sub-information includes following one:
- .CRS port number and CRS frequency shift (FS)
- .CSI-RS port number and CSI-RS configuration.
Specifically, according to an aspect of the present invention, which is characterized in that the K RS resource group shares identical second
Information, the second information includes following one:
- .CRS port number and CRS frequency shift (FS)
- .CSI-RS port number and CSI-RS configuration.
Specifically, according to an aspect of the present invention, which is characterized in that each RS resource group actually accounts in the time domain
Subframe is configured jointly by the high-level signaling and physical layer signaling, or is only configured by physical layer signaling.
Specifically, according to an aspect of the present invention, which is characterized in that the Target Wireless signal transmits on PDSCH,
Third information is indicated by PDSCH-Config IE.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: following information is determined for receiving high-level signaling:
The frequency band of .K carrier wave of the first information
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.
Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain,
At least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave of the Target Wireless signal is deployed in
Unlicensed spectrum.
As one embodiment, the first module is also used to reception downlink RS and determination in the K RS resource group
It is used for transmission the large scale characteristic of the wireless channel of the Target Wireless signal.First module is also used to according to the wireless channel
Large scale characteristic receive the Target Wireless signal.
The invention discloses a kind of base station equipments, which is characterized in that the equipment includes:
First module: following information is indicated for sending high-level signaling:
The frequency band of .K carrier wave of the first information
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.
Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain,
At least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave of the Target Wireless signal is deployed in
Unlicensed spectrum.
As one embodiment, the first module is also used to the transmission downlink RS in the K RS resource group.First module
It is also used to send the Target Wireless signal.
The use of LBT technology may result in the downlink RS for channel measurement being semi-statically configured on LAA carrier wave at certain
A little frame can not be sent, for this problem, method of the invention make UE using the downlink RS on multiple carrier waves " half is co-located
" this characteristic obtain for Target Wireless signal transmission channel large scale characteristic, using large scale characteristic, in conjunction with institute
The DMRS stated on Target Wireless signal estimates small dimensional properties, effectively improves letter under the premise of not increasing downlink RS redundancy overhead
The performance of road estimation.LAA LTE after introducing the invention enables LBT technology keeps maximum forward compatibility.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart according to an embodiment of the invention that downlink transfer is carried out on LAA carrier wave；
Fig. 2 shows the subframe distribution figures of K RS resource group according to an embodiment of the invention；
Fig. 3 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 4 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart that downlink transfer is carried out on LAA carrier wave, as shown in Fig. 1.In attached drawing 1, base station
The serving cell of N1 maintenance UE U2.
For base station N1, high-level signaling is sent in step s 11 and indicates following information:
The frequency band of .K carrier wave of the first information
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.
Transmission downlink RS in the K RS resource group in step s 12.Send in step s 13 the target without
Line signal.
For UE U2, high-level signaling is received in the step s 21 and determines the first information, the second information and third information.In step
Reception downlink RS in rapid S22 in the K RS resource group, determines the wireless channel for being used for transmission the Target Wireless signal
Large scale characteristic.The Target Wireless signal is received according to the large scale characteristic of the wireless channel in step S23.
In embodiment 1, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K on frequency domain
Carrier wave, at least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave portion of the Target Wireless signal
It is deployed on unlicensed spectrum.
As the sub- embodiment 1 of embodiment 1, the second information includes K group sub-information, and the K group sub-information indicates respectively institute
The physical resource that K RS resource group occupies in subframe is stated, every group of sub-information includes configuring with CSI-RS port number and CSI-RS.
As the sub- embodiment 2 of embodiment 1, in step S22, UE U2 is first to each in the K RS resource group
The port positive integer RS in RS resource group carries out channel estimation, the large scale characteristic of corresponding carriers is determined, then to K carrier wave
On large scale characteristic execute it is linear average, obtain the large scale characteristic of the wireless channel.
As the sub- embodiment 3 of embodiment 1, the K RS resource group shares identical second information, and the second information includes
Following one:
- .CRS port number and CRS frequency shift (FS)
- .CSI-RS port number and CSI-RS configuration.
Embodiment 2
Embodiment 2 illustrates the subframe distribution figure of K RS resource group, as shown in Fig. 2.In attached drawing 2, a lattice table
Show a subframe, wherein the lattice of reference numbers i indicates the subframe of i-th of RS resource group (i is from 1 to K), and oblique line identifies small
Grid is that base station keeps zero subframe for sending power.
Base station sends high-level signaling first and indicates following information:
The frequency band (the 1st carrier wave~K carrier wave in attached drawing 2) of .K carrier wave of the first information
Each RS resource group in-the second RS resource of information .K group (the 1st RS resource group~k-th RS resource group) exists
The physical resource occupied in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.
Then the transmission downlink RS in the K RS resource group (as shown in the lattice of reference numbers i in attached drawing 2),
Then the Target Wireless signal is sent.
In embodiment 2, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K on frequency domain
Carrier wave, at least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave portion of the Target Wireless signal
It is deployed on unlicensed spectrum.
In embodiment 2, the high-level signaling also indicates the subframe of K RS resource group periodicity sending in the time domain
(the periodicity sending subframe of each RS resource group as shown in the lattice in attached drawing 2 in corresponding carriers-include reference numbers it is small
The lattice of grid and oblique line mark).The base station executes the part subframe in the determining periodicity sending subframe of LBT operation
For practical transmission, and zero is kept to send power (not sending downlink RS) in other subframes.The base station sends physical layer
Signaling indicates the part subframe.
As the sub- embodiment 1 of embodiment 2, the Target Wireless signal transmits on PDSCH, and third information is by PDSCH-
The instruction of Config information unit.
As the sub- embodiment 2 of embodiment 2, the K carrier wave is continuous on frequency domain.
As the sub- embodiment 3 of embodiment 2, the base station (belongs to RS periodicity sending to stator frame given carrier wave
Subframe) on keep zero when sending power, UE can be using to stator frame or described giving stator frame described on other carrier waves
The downlink RS nearby sent compensates the large scale characteristic of the Target Wireless signal wireless channel experienced, avoids channel estimation
Performance is remarkably decreased.
Embodiment 3
Embodiment 3 illustrates the structural block diagram of the processing unit in UE, as shown in Fig. 3.In attached drawing 3, UE processing unit
200 are made of receiving module 201.
Receiving module 201 determines following information for receiving high-level signaling:
The frequency band of .K carrier wave of the first information
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.
In embodiment 3, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K on frequency domain
Carrier wave, at least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave portion of the Target Wireless signal
It is deployed on unlicensed spectrum.
As the sub- embodiment 1 of embodiment 3, receiving module 201 is also used to the reception downlink in the K RS resource group
RS determines the large scale characteristic for being used for transmission the wireless channel of the Target Wireless signal；And for according to the wireless communication
The large scale characteristic in road receives the Target Wireless signal.
As the sub- embodiment 2 of embodiment 3, the Target Wireless signal is transmitted on PDSCH or is uploaded in EPDCCH
It is defeated.
As the sub- embodiment 3 of embodiment 3, any one carrier wave of the Target Wireless signal in the K carrier wave
Upper transmission.
Embodiment 4
Embodiment 4 illustrates the structural block diagram of the processing unit in base station, as shown in Fig. 4.In attached drawing 4, base station processing
Device 400 is made of sending module 401.
Sending module 401 indicates following information for sending high-level signaling:
The frequency band of .K carrier wave of the first information
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located.
In embodiment 4, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K on frequency domain
Carrier wave, at least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The transmission carrier wave portion of the Target Wireless signal
It is deployed on unlicensed spectrum.
As the sub- embodiment 1 of embodiment 4, sending module 401 is also used to the transmission downlink in the K RS resource group
RS, and for sending the Target Wireless signal.
As the sub- embodiment 2 of embodiment 4, the K carrier wave is all deployed in unlicensed spectrum, the Target Wireless signal
It is transmitted on any one carrier wave in the K carrier wave.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (12)
1. a kind of method in UE, wherein include the following steps:
Step A. receives radio resource control signaling signaling and determines following information:
The frequency band of .K carrier wave of the first information；
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe；
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located；
Reception downlink RS of the step B. in the K RS resource group, determination are used for transmission the wireless of the Target Wireless signal
The large scale characteristic of channel；
Step C. receives the Target Wireless signal according to the large scale characteristic of the wireless channel；
Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain, described
At least one carrier wave is deployed in unlicensed spectrum in K carrier wave；The transmission carrier wave of the Target Wireless signal is deployed in non-award
Weigh frequency spectrum；The Target Wireless signal transmits on PDSCH.
2. a kind of method in base station, wherein include the following steps:
Step A. sends radio resource control signaling and indicates following information:
The frequency band of .K carrier wave of the first information；
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe；
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located；
Transmission downlink RS of the step B. in the K RS resource group；
Step C. sends the Target Wireless signal；
Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain, described
At least one carrier wave is deployed in unlicensed spectrum in K carrier wave.The transmission carrier wave of the Target Wireless signal is deployed in non-award
Weigh frequency spectrum.
3. a kind of user equipment, which is characterized in that the equipment includes:
First module: following information is determined for receiving radio resource control signaling:
The frequency band of .K carrier wave of the first information；
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe；
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located；
And
Reception downlink RS in the K RS resource group determines the wireless channel for being used for transmission the Target Wireless signal
Large scale characteristic；
The Target Wireless signal is received according to the large scale characteristic of the wireless channel；
Wherein, the K is greater than 1 positive integer, and the K RS resource group is belonging respectively to the K carrier wave on frequency domain, described
At least one carrier wave is deployed in unlicensed spectrum in K carrier wave.The transmission carrier wave of the Target Wireless signal is deployed in non-award
Weigh frequency spectrum.
4. user equipment according to claim 3, which is characterized in that the second information includes K group sub-information, K group
Information indicates respectively the physical resource that the K RS resource group occupies in subframe, and every group of sub-information includes following one:
- .CRS port number and CRS frequency shift (FS)；
- .CSI-RS port number and CSI-RS configuration.
5. user equipment according to claim 3, which is characterized in that the K RS resource group shares identical second letter
Breath, the second information includes following one:
- .CRS port number and CRS frequency shift (FS)；
- .CSI-RS port number and CSI-RS configuration.
6. the user equipment according to any claim in claim 3 to 5, which is characterized in that each RS resource
The subframe that group actually occupies in the time domain is configured jointly by the high-level signaling and physical layer signaling, or only by physical layer signaling
Configuration.
7. the user equipment according to any claim in claim 3 to 5, which is characterized in that the Target Wireless letter
It number is transmitted on PDSCH, third information is indicated by PDSCH-Config information unit.
8. a kind of base station equipment, which is characterized in that the equipment includes:
First module: following information is indicated for sending radio resource control signaling:
The frequency band of .K carrier wave of the first information；
The physical resource that each RS resource group in-the second RS resource group of information .K occupies in subframe；
The antenna port of third information Target Wireless signal and the K RS resource group are half co-located；
And
Transmission downlink RS in the K RS resource group；
Send the Target Wireless signal；Wherein, the K is greater than 1 positive integer, and the K RS resource group is divided on frequency domain
Do not belong to the K carrier wave, at least one carrier wave is deployed in unlicensed spectrum in the K carrier wave.The Target Wireless letter
Number transmission carrier wave be deployed in unlicensed spectrum.
9. base station equipment according to claim 8, which is characterized in that the second information includes K group sub-information, K group
Information indicates respectively the physical resource that the K RS resource group occupies in subframe, and every group of sub-information includes following one:
- .CRS port number and CRS frequency shift (FS)；
- .CSI-RS port number and CSI-RS configuration.
10. base station equipment according to claim 8, which is characterized in that the K RS resource group shares identical second letter
Breath, the second information includes following one:
- .CRS port number and CRS frequency shift (FS)；
- .CSI-RS port number and CSI-RS configuration.
11. the base station equipment according to any claim in claim 8 to 10, which is characterized in that each RS money
The subframe that source group actually occupies in the time domain is configured jointly by the high-level signaling and physical layer signaling, or is only believed by physical layer
Enable configuration.
12. the base station equipment according to any claim in claim 8 to 10, which is characterized in that the Target Wireless
Signal transmits on PDSCH, and third information is indicated by PDSCH-Config information unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910295953.8A CN110072290B (en) | 2014-11-12 | 2014-11-12 | Communication method and device of LAA system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910295953.8A CN110072290B (en) | 2014-11-12 | 2014-11-12 | Communication method and device of LAA system |
| CN201410635223.5A CN105656607B (en) | 2014-11-12 | 2014-11-12 | A kind of communication means and device of LAA system |
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| CN201410635223.5A Division CN105656607B (en) | 2014-11-12 | 2014-11-12 | A kind of communication means and device of LAA system |
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| CN110072290A true CN110072290A (en) | 2019-07-30 |
| CN110072290B CN110072290B (en) | 2023-04-07 |
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| CN201910295953.8A Active CN110072290B (en) | 2014-11-12 | 2014-11-12 | Communication method and device of LAA system |
| CN201410635223.5A Active CN105656607B (en) | 2014-11-12 | 2014-11-12 | A kind of communication means and device of LAA system |
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| WO2023241550A1 (en) * | 2022-06-16 | 2023-12-21 | 上海朗帛通信技术有限公司 | Method and apparatus used for wireless communication |
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| CN112615657A (en) * | 2016-07-25 | 2021-04-06 | 上海朗帛通信技术有限公司 | Method and device in wireless transmission |
| KR102431635B1 (en) * | 2016-11-04 | 2022-08-12 | 삼성전자 주식회사 | Adaptive retransmission method and apparatus for latency reduction in wirelss cellular communication system |
| CN111585699B (en) * | 2016-12-03 | 2022-05-10 | 极光技术咨询有限责任公司 | Method and device used in UE (user equipment) and base station for multi-antenna transmission |
| CN108271264B (en) * | 2017-01-03 | 2020-06-30 | 上海朗帛通信技术有限公司 | Method and device used in UE (user equipment) and base station for multi-antenna transmission |
| EP3550913A4 (en) | 2017-01-25 | 2019-12-11 | Huawei Technologies Co., Ltd. | Communication method, network side device and terminal device |
| CN114125874A (en) * | 2017-03-26 | 2022-03-01 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN108809366B (en) * | 2017-04-29 | 2020-08-11 | 上海朗帛通信技术有限公司 | Method and device used in user and base station of wireless communication |
| CN109257075B (en) * | 2017-07-12 | 2021-01-26 | 上海朗帛通信技术有限公司 | Method and device in user equipment and base station for wireless communication |
| CN110062416B (en) * | 2018-01-19 | 2023-04-28 | 维沃移动通信有限公司 | Resource relation notification and determination methods, base station and terminal |
| CN110120859B (en) * | 2018-02-05 | 2021-09-24 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN111315013B (en) * | 2018-12-11 | 2023-07-25 | 上海朗帛通信技术有限公司 | User equipment, method and device in base station for wireless communication |
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| CN110072290B (en) | 2023-04-07 |
| CN105656607A (en) | 2016-06-08 |
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