CN109951264A - Method, equipment and computer-readable media for communication - Google Patents
Method, equipment and computer-readable media for communication Download PDFInfo
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- CN109951264A CN109951264A CN201711382524.1A CN201711382524A CN109951264A CN 109951264 A CN109951264 A CN 109951264A CN 201711382524 A CN201711382524 A CN 201711382524A CN 109951264 A CN109951264 A CN 109951264A
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Abstract
The disclosure provides a kind of communication means, equipment and computer-readable medium.This method comprises: sending uplink reference signals configuration information to first terminal equipment at the network equipment comprising for the configuration information of uplink narrowband reference signal and upstream broadband reference signal in identical frequency；The uplink narrowband reference signal and upstream broadband reference signal sent in response to receiving the first terminal equipment based on the configuration information determines the first channel quality estimation for the channel between the network equipment and the first terminal equipment from the uplink narrowband reference signal；Determine that the second channel quality for the channel is estimated from the upstream broadband reference signal；And estimated based on first channel quality estimation and the second channel quality, detect interference of the second terminal equipment in neighboring community to the channel.
Description
Technical field
Embodiment of the disclosure is related to wireless communication field, more particularly relates to method, equipment and the meter of communication
Calculation machine readable medium.
Background technique
LTE can provide service for unmanned vehicle (UAV).Introducing unmanned vehicle terminal device leads to LTE system face
Face the strong uplink channel interference of minizone.In LTE, uplink channel interference can pass through uplink reference signals (UL
RS measurement) detects.Different terminal equipment in different community may reuse identical UL RS in an uplink transmission.
This leads to serious UL RS pollution problem, prevent the network equipment is from accurately obtaining the channel of the uplink of terminal device
Information.
Summary of the invention
Generally, embodiment of the disclosure provide at terminal device and the network equipment implement for communication method,
The network equipment and terminal device.
In one aspect of the present disclosure, a kind of communication means is provided.The described method includes: at the network equipment, to first
Terminal device sends uplink reference signals configuration information comprising in the uplink narrowband reference signal of identical frequency and upper
The configuration information of row broadband reference signal；It is sent in response to receiving the first terminal equipment based on the configuration information
The uplink narrowband reference signal and upstream broadband reference signal determine from the uplink narrowband reference signal and are directed to the network
First channel quality estimation of the channel between equipment and the first terminal equipment；It is determined from the upstream broadband reference signal
For the second channel quality estimation of the channel；And it is based on first channel quality estimation and the second channel quality
Estimation detects interference of the second terminal equipment in neighboring community to the channel.
In another aspect of the present disclosure, a kind of communication means is provided.The described method includes: receiving and at terminal device
The uplink reference signals configuration information of automatic network equipment comprising in the uplink narrowband reference signal of identical frequency and upper
The configuration information of row broadband reference signal；And to the network equipment send sent based on the configuration information it is described on
Row narrowband reference signal and upstream broadband reference signal.
At the another aspect of the disclosure, a kind of network equipment is provided.The network equipment includes: at least one processor；
And the memory coupled at least one described processor, the memory include to be stored in instruction therein, the finger
It enables when being executed by least one described processing unit, so that the network equipment executes movement.The movement is included in network
At equipment, uplink reference signals configuration information is sent to first terminal equipment comprising narrow for the uplink in identical frequency
Configuration information with reference signal and upstream broadband reference signal；Described match is based in response to receiving the first terminal equipment
Confidence ceases and the uplink narrowband reference signal and upstream broadband reference signal of transmission, true from the uplink narrowband reference signal
Surely for the first channel quality estimation of the channel between the network equipment and the first terminal equipment；From the upper line width
Determine that the second channel quality for the channel is estimated with reference signal；And it is based on first channel quality estimation and institute
The estimation of second channel quality is stated, interference of the second terminal equipment in neighboring community to the channel is detected.
At the another aspect of the disclosure, a kind of terminal device is provided.The terminal device includes: at least one processor；
And the memory coupled at least one described processor, the memory include to be stored in instruction therein, the finger
It enables when being executed by least one described processing unit, so that the network equipment executes movement.The movement is included in terminal
At equipment, the uplink reference signals configuration information from the network equipment is received comprising narrow for the uplink in identical frequency
Configuration information with reference signal and upstream broadband reference signal；And it is sent to the network equipment and is based on the configuration information
And the uplink narrowband reference signal and upstream broadband reference signal sent.
At the another aspect of the disclosure, a kind of embodiment of the disclosure is provided, a kind of computer-readable medium is provided.The meter
It is stored with instruction on calculation machine readable medium, when instruction by least one processing unit when being executed, so that at least one processing is single
Member is configured as executing movement.The movement includes: to send uplink reference signals configuration to first terminal equipment at the network equipment
Information comprising for the configuration information of uplink narrowband reference signal and upstream broadband reference signal in identical frequency；It rings
Ying Yu receives the uplink narrowband reference signal and uplink that the first terminal equipment is sent based on the configuration information
Broadband reference signal is determined from the uplink narrowband reference signal between the network equipment and the first terminal equipment
Channel the first channel quality estimation；The second channel quality for being directed to the channel is determined from the upstream broadband reference signal
Estimation；And estimated based on first channel quality estimation and the second channel quality, detect second in neighboring community
Interference of the terminal device to the channel.
At the another aspect of the disclosure, a kind of computer-readable medium is provided.Finger is stored on the computer-readable medium
It enables, when instruction by least one processing unit when being executed, so that at least one processing unit is configured as executing movement.This is dynamic
Work includes: to receive the uplink reference signals configuration information from the network equipment at terminal device comprising in identical
The uplink narrowband reference signal of frequency and the configuration information of upstream broadband reference signal；And it is based on to network equipment transmission
The configuration information and the uplink narrowband reference signal and upstream broadband reference signal sent.
It should be appreciated that content described in Summary is not intended to limit the key or again of the embodiment of the present disclosure
Feature is wanted, it is also non-for limiting the scope of the present disclosure.The other feature of the disclosure will be easy to understand by description below.
Detailed description of the invention
It refers to the following detailed description in conjunction with the accompanying drawings, the above and other feature, advantage and aspect of each embodiment of the disclosure
It will be apparent.In the accompanying drawings, the same or similar appended drawing reference indicates the same or similar element, in which:
Fig. 1 shows the schematic diagram for the exemplary communication scene that the embodiment of the present disclosure can be implemented within.
Fig. 2 shows implement the schematic diagram of communication according to configuring based on double SRS for some embodiments of the disclosure.
Fig. 3 is the method 300 for communication for implementing at the network equipment shown according to the embodiment of the present disclosure
Flow chart.
Fig. 4 shows the schematic diagram that implementation communication is configured based on double SRS of some embodiments according to the disclosure.
Fig. 5 shows the schematic diagram that implementation communication is configured based on double SRS of some embodiments according to the disclosure.
Fig. 6 is the method 600 for communication for implementing at the network equipment shown according to the embodiment of the present disclosure
Flow chart.
Fig. 7 is the method 700 for communication for implementing at terminal device shown according to the embodiment of the present disclosure
Flow chart.
Fig. 8 shows the simplified block diagram for being suitable for realizing the electronic equipment of the embodiment of the present disclosure.
In all the appended drawings, same or similar reference number indicates same or similar element.
Specific embodiment
Embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although shown in the drawings of some of the disclosure
Embodiment, it should be understood that, the disclosure can be realized by various forms, and should not be construed as being limited to this
In the embodiment that illustrates, providing these embodiments on the contrary is in order to more thorough and be fully understood by the disclosure.It should be understood that
It is that being given for example only property of the accompanying drawings and embodiments effect of the disclosure is not intended to limit the protection scope of the disclosure.
Term " network equipment " as used herein refers to other realities in base station or communication network with specific function
Body or node." base station " can indicate node B (NodeB or NB), evolution node B (eNodeB or eNB), remote radio
Unit (RRU), radio-frequency maser (RH), remote radio heads (RRH), repeater or femto base station, femto base station etc.
Low power nodes etc..In the context of the disclosure, to discuss convenient purpose, term " network equipment " and " base station " can
To be used interchangeably, and mainly using eNB as the example of the network equipment.
Terminology used in this article " terminal device " is to refer to carry out channel radio between base station or each other
Any terminal device or terminal device equipment (UE) of letter.Particularly, the terminal device of this paper can be guided it is stronger small
The terminal device of section interference, such as the terminal device of high dry running, such as UAV.However, as an example, terminal device can be with
Including the sensor with communication function, detector, mobile terminal (MT), subscriber stations (SS), portable subscriber platform (PSS), shifting
Dynamic platform (MS) or access terminal (AT) and vehicle-mounted above equipment etc..In the context of the disclosure, for discuss it is convenient it
Purpose, term " terminal device " and " terminal device equipment " may be used interchangeably, and mainly showing using UAV as terminal device
Example.
Term " includes " as used herein and its deformation are that opening includes, i.e., " including but not limited to ".Term "based"
It is " being based at least partially on ".Term " one embodiment " expression " at least one embodiment "；Term " another embodiment " indicates
" at least one other embodiment ".The related definition of other terms provides in will be described below.
LTE can provide service for unmanned vehicle (UAV).Introducing UAV terminal device causes LTE system to face minizone
Strong uplink channel interference.For example, in an uplink transmission, if UAV is relative to the network equipment (such as: base station) day
Line height in low-latitude flying, behave like ground terminal (such as: the UE resting on the ground).Once however UVA is in base
It more than station antenna height flies, due to line-of-sight propagation condition, the uplink signal from aircraft is visible for multiple cells.
UL RS signal from UVA increases the interference of neighboring community.Increased interference causes negative shadow to LTE ground terminal
It rings.This means that LTE network there should be the ability of quick and powerful detection UVA uplink channel interference, and take corresponding
Solution alleviates uplink channel interference.
In order to mitigate uplink interference, LTE network should have with the ability of low overhead detection interference.In LTE, on
Line link interference can be detected by uplink reference signals measurement.Due to the number of uplink reference signals (UL RS)
Mesh is limited (for example, uplink sounding reference signal UL SRS), and the different terminal equipment in different community may be in uplink
Identical UL RS is reused in the transmission of road, this leads to serious UL RS pollution problem, especially for being equipped with a large amount of transmission
For the system of device and receiver antenna.Currently, be solve LTE ground terminal UL RS pollution problem take
Some measures.
However, when LTE network supports UVA communication, candidate terminal equipment scale further expansion.In addition, UVA channel has
There are more new functions, such as the height reliability of LOS (Line Of Sight) channel, this will further deteriorate UL SRS pollution.
In this case, the network equipment is only capable of measuring the channel of synthesis.In this case, actual interference UVA can neither be identified,
It can not obtain the ground terminal of its service or the accurate uplink CSI of UVA terminal device.This is caused under network performance
Drop.
Currently, the uplink channel interference detection for UVA proposes some solutions.A solution is to be based on
RSRP measurement and corresponding unmanned vehicle feedback.The solution is related to more terminal devices and feeds back and utilize downlink
Channel reciprocity property between channel and uplink channel, this scheme may face LTE FDD system or LTE is non-ideal
The potential challenge of TDD system.Another solution is the UL SRS measurement based on the uplink channel interference detection to UVA.But
It is that such solution does not account for serious UL RS pollution in the uplink communication of the UVA based on LTE.
In consideration of it, embodiment of the disclosure provides a kind of double SRS (Bi-SRS) allocation plan for LTE UAV.Specifically
For, broadband SRS (WB-SRS) and narrowband SRS (NR-SRS) can be respectively configured for UAV and based on NB-SRS and WB-SRS
Channel state information (CSI) difference of measurement come determine UL RS pollute.By this method, the network equipment can prepare to measure channel
State simultaneously takes row to take independent operation or takes cooperative operation to reduce RS pollution.In addition, this Bi-SRS allocation plan tool
There is good compatibility, will not influence the operation and performance of ground installation.
In general, UAV UL interference includes that following two is interfered.The first UAV UL interference comes from the same cell, clothes
Business cell can be configured by it for the dedicated SRS of each unmanned vehicle configuration to identify the unmanned vehicle.This
In the case of, if eNB takes power control (PC) solution of optimization, UAV UL interference in this part can be compressed.UL
Unique remaining target of SRS design is to expand UL SRS capacity, to support more candidate users, to obtain bigger multi-user
Scheduling gains and spatial multiplex gains.
Second of UAV UL interference comes from other cells.This interference for example can be by multi-cell cooperating to obtain other
The UAV SRS configuration of cell is addressed.For example, serving cell can identify unmanned vehicle and relative interference.Clothes
Business cell will send interference instruction to Target cell, and request cooperation is to reduce UAV UL interference.As unmanned vehicle communicates
Multi-cell cooperating, UAV UL RS pollution can be to avoid.If there is no the UAV SRS configuration of other cells, service before
Cell is difficult to unmanned plane and its interference.In addition, UL RS pollution will exist, and it will affect the uplink of serving cell users
Channel measurement, and reduce upstream performance.
It will hereinafter make for the solution of above-mentioned second of UAV UL interference and further discussing.
Fig. 1 shows the schematic diagram for the exemplary communication scene 100 that the embodiment of the present disclosure can be implemented within.For convenience
It discusses, it hereafter may be using eNB as the network equipment or the example of base station, and using UAV as the example of terminal device.However it answers
Work as understanding, this is intended merely to facilitate the thought for illustrating the embodiment of the present disclosure, it is not intended to limit the application of the disclosure in any way
Scene and range.
As shown in Figure 1, the first network equipment 120 of the first terminal equipment 110 of such as UAV for instance in such as eNB
In serving cell.Serving cell of the second terminal equipment 130 of such as UAV for instance in second network equipment 140 of such as eNB
It is interior.Theoretically, first terminal equipment 110 is communicated with first network equipment 120, and second terminal equipment 130 and second
The network equipment 140 is communicated.However unlike the terminal device on ground, due to 110 He of first terminal equipment
Second terminal equipment 130 is unmanned vehicle (UVA), and with certain flying height, such as the flying height can exceed
The height of first network equipment 120 and second network equipment 140, and in this case first network equipment 120 is in the
In the horizon range of two terminal devices 130.This will lead to from second terminal equipment 110 to the uplink of first network equipment 120
Link transmission may be subjected to the interference from second terminal equipment 130.In particular, from first terminal equipment 110 to the first
There may be the uplink reference signals from second terminal equipment 130 in the uplink reference signals of the network equipment 120
Pollution.
It is present in from first terminal equipment 110 to the uplink reference signals of first network equipment 120 when polluting, the
One network equipment 120 then cannot accurately know first terminal equipment 110 and first network from the uplink reference signals
Channel quality between equipment 120.Therefore, if it is desired to know accurate channel status, then need to determine first first eventually
Channel between end equipment 110 and first network equipment 120 is with the presence or absence of the UL RS pollution from second terminal equipment 130.
Channel between first terminal equipment 110 and first network equipment 120, which whether there is, comes from second terminal equipment
130 UL RS pollution can be by being based upon upstream broadband reference signal (such as the UL WB- of the configuration of first terminal equipment 110
SRS) judge with channel estimation determined by uplink narrowband reference signal (such as UL NB-SRS), so as to obtain it is accurate
After channel status, it can be taken appropriate measures according to channel status to avoid interfering.Embodiment in this respect will later
It is described in detail.
Communication in network 100 can be implemented according to any communication protocol appropriate.The example of communication protocol include but
It is not limited to, the cellular communication protocols such as the first generation (1G), the second generation (2G), the third generation (3G), forth generation (4G) and the 5th generation (5G),
The wireless LAN communication agreement of Institute of Electrical and Electronics Engineers (IEEE) 802.11 etc., and/or be currently known or
Any other agreement of exploitation in the future.Moreover, the communication uses any appropriate wireless communication technique, including but not limited to, code point
Multiple access (CDMA), frequency division multiple access (FDMA), time division multiple acess (TDMA), frequency division duplex (FDD), time division duplex (TDD), multi input are more
Output (MIMO), orthogonal frequency division multiple access (OFDM), and/or any other technology for being currently known or developing in the future.
It is described in detail below in conjunction with principle and specific embodiment of the Fig. 2 to Fig. 7 to the disclosure.First refering to fig. 2,
It illustrates implement the schematic diagram of communication according to configuring based on double SRS for some embodiments of the disclosure.It is appreciated that in Fig. 2
The interactive process of description can for example be implemented between first network equipment 120 and first terminal equipment 110 as shown in Figure 1.
As shown in Fig. 2, the network equipment (the first network equipment 120 of example as shown in figure 1) is the in its serving cell
The parameter of one terminal device, 110 collocating uplink reference signal.In certain embodiments, which is related to uplink detection
Reference signal (UL SRS).In general, SRS is used to provide the estimation of up channel frequency domain information for the network equipment, is positive
Hand over sequence.The parameter that UL SRS is related to for example may include sequence number, and sequence length is used for transmission the frequency domain and terminal of SRS
The period etc. of equipment transmission SRS.For the general terminal device of LTE, SRS uplink subframe (USF) last
It is transmitted in a OFDM symbol.However for UAV, as already mentioned above, according to an embodiment of the invention, the network equipment
Double SRS configurations are taken for the UAV in serving cell, as it configures broadband SRS and narrowband SRS.
In conjunction with Fig. 2, first network equipment 120 sends 215 to first terminal equipment 110 and configures for first terminal equipment 110
UL SRS.The UL SRS includes WB-SRS and NB-SRS in identical frequency.Based on receiving UL SRS configuration information,
First terminal equipment 110 sends uplink WB-SRS and uplink NB-SRS to first network equipment 120.First network equipment 120
According to received uplink WB-SRS determine the first channel of the channel between first network equipment 120 and first terminal equipment 110
Quality estimation, and according to received uplink NB-SRS determine between first network equipment 120 and first terminal equipment 110
The second channel quality of channel is estimated, to detect 225 second terminal equipment 130 according to two acquired channel quality estimations
Interference to the channel.
There is interference in the channel if detected, first network equipment 120 for example can be by changing into first terminal
The UL SRS configuration parameter that equipment 110 configures avoids interfering.For example, the UL that first network equipment 120 can will change
SRS configuration information sends 230 to first terminal equipment 110.As interchangeable settling mode, first network equipment 120 is for example
The UL SRS configuration information configured for first terminal equipment 110 can be sent to 235 to second network equipment 140, so that
Second network equipment 140 can change the UL SRS configuration information of the second terminal equipment 130 in its serving cell and will
The configuration information sends 240 to second terminal equipment 130.As another interchangeable settling mode, first network equipment 120
It can be such as that first terminal equipment 110 is matched to the cell broadcast service of cluster (cluster) associated with first network equipment 120
The UL SRS configuration information set.
Fig. 2 is had been combined from the high-level interactive process described between the network equipment and terminal device.It below will be respectively
Its respective movement is described from the network equipment and terminal equipment side.
Fig. 3 is the method 300 for communication for implementing at the network equipment shown according to the embodiment of the present disclosure
Flow chart.The communication means implemented at the network equipment is further described with reference next to Fig. 3.It is appreciated that being described in Fig. 3
Embodiment can implement for example at first network equipment 120 as shown in Figure 1.
In frame 305, first network equipment 120 sends the UL configured for first terminal equipment 110 to first terminal equipment 110
SRS.It is the UL SRS that first terminal equipment 110 configures is double SRS configuration (Bi-SRS) as having been described above.The UL
SRS includes WB-SRS and NB-SRS in identical frequency.
In certain embodiments, first network equipment 120 can pass through the UL SRS configured for first terminal equipment 110
Physical Downlink Control Channel (PDCCH) is transferred to first terminal equipment 110.Optionally, first network equipment 120 can also will be
The UL SRS that first terminal equipment 110 configures is transferred to first terminal equipment 110 by Physical Downlink Shared Channel (PDSCH).
It is as already described above, for the general terminal device of LTE, SRS uplink subframe (USF) most
It is transmitted in the latter OFDM symbol.And in an embodiment of the present invention, since SRS includes NB-SRS and WB-SRS, proposition will be special
The uplink transmission region of different subframe (SSF) is used for the transmission of NB-SRS.According to some embodiments, first network equipment is come from
120 configuration information can also include that the instruction of the resource of SRS is used for transmission in a tdd frame.According to some embodiments,
NB-SRS can be transmitted on the uplink transmission region of special subframe (SSF), especially the uplink in special subframe (SSF)
It is transmitted in the last one OFDM symbol in link transmission region, and WB-SRS can be still in the last of uplink subframe (USF)
It is transmitted in one OFDM symbol.Optionally, NB-SRS and WB-SRS can be transmitted in the uplink transmission region of SSF,
Middle NB-SRS is for example still transmitted in the last one OFDM symbol, and WB-SRS for example can be in penultimate OFDM symbol
Transmission.This configuration, which is advantageous in that, can be improved UL SRS capacity to support more UAV users and terrestrial user, because
It is only applied to terrestrial user in the last one OFDM symbol in USF, and the WB-SRS of UAV user and NB-SRS are SSF's
It is transmitted in uplink transmission region.The detailed description for being related to this part is described in detail hereinafter in conjunction with Fig. 4 and Fig. 5.
In addition, in order to avoid the appearance of interference, according to some embodiments, the configuration information from first network equipment 120
It can also include indicating the configuration information of NB-SRS frequency-hopping transmissions on SSF.Optionally, matching from first network equipment 120
Confidence breath can also include the configuration information for indicating to reserve resource for NB-SRS on SSF.
Fig. 3 is returned to, in frame 310, it is determined whether receive it is from first terminal equipment 110, matched based on described above
Confidence ceases and the uplink WB-SRS and uplink NB-SRS of transmission.If it is determined that receiving uplink WB-SRS and uplink NB-
SRS determines the uplink between first terminal equipment 110 and first network equipment 120 according to uplink NB-SRS then in frame 315
The first channel quality estimation of path channels, and first terminal equipment 110 and first network equipment are then determined according to WB-SRS uplink
The second channel quality estimation of uplink channel between 120.
The communication means based on different double SRS configurations is described in further detail hereinafter in connection with Fig. 4 and Fig. 5.Fig. 4
Show the schematic diagram that implementation communication is configured based on double SRS of some embodiments according to the disclosure.Fig. 5 is shown according to this public affairs
The some embodiments opened configure the schematic diagram for implementing communication based on double SRS.
Referring initially to Fig. 4, tdd frame 400 is schematically illustrated in Fig. 4.As can be seen that frame 400 may include special
Subframe (SSF) 405 and uplink subframe (USF) 410.Its corresponding uplink is mapped out with USF 410 by SSF 405
Time-frequency figure, wherein abscissa indicates that time and ordinate indicate frequency.There is uplink transmission region 415 in SSF.Such as
It has been described above, configuration information can indicate that NB-SRS is transmitted on the uplink transmission region of SSF, and WB-SRS exists
It is transmitted in the last one OFDM symbol of USF.
As shown in figure 4, in certain embodiments, the NB-SRS of first terminal equipment 110 can be passed with the uplink in SSF
(filling in figure with grid lines) is transmitted in the resource particle (Resource Element, RE) 420 in defeated region 415.It is right with it
The WB-SRS for the first terminal equipment 110 answered can be to transmit on the RE 425 in the OFDM symbol of the last one in USF.It can see
Out, RE 420 and RE 425 are identical on frequency domain, only difference in the time domain.
In addition, as shown in figure 4, can also include being and first terminal equipment on uplink transmission region 415 in SSF
In identical serving cell UAV (such as third terminal equipment) configuration RE 430 and corresponding thereto in USF
The last one OFDM symbol on RE 435.Can also include in the last one OFDM symbol in USF be ground based terminal
The RE 440,445,450 (being filled in figure with oblique line) of device configuration.
It has been described above, first network equipment 120 is if it is determined that receive uplink WB-SRS and uplink NB-SRS, then
It can be by determining the uplink channel between first terminal equipment 110 and first network equipment 120 according to uplink NB-SRS
First channel quality estimation, and then determined between first terminal equipment 110 and first network equipment 120 according to WB-SRS uplink
The second channel quality of uplink channel is estimated.
After the first and second channel quality estimations have been determined respectively, Fig. 3 is returned to, in frame 320, is based on first and second
Channel quality estimation detects interference of the second terminal equipment 130 of neighboring community to channel.
In certain embodiments, the second terminal equipment 130 for detecting neighboring community can pass through determination to the interference of channel
Difference between first and second channel quality estimations is realized.Because if being set in first terminal equipment 110 and first network
There is no interference in uplink channel between standby 120, second channel quality evaluation value and the first channel quality estimates should
It is substantially the same, that is to say, that the difference between them is intended to zero.If it is determined that the difference exceeds threshold value, then it can be true
It is scheduled between first terminal equipment 110 and first network equipment 120 in uplink channel and there is interference.
The detection of channel disturbance is further described below with reference to the timing diagram shown in Fig. 4.For example, in certain embodiments,
It can be whether there is by following formula (1) to detect interference:
Wherein i indicates the ordinal number of the UAV user in same serving cell, hiIndicate letter associated with terminal device i
The value of road quality estimation, t1And t2Indicate different time, f1And f2Indicate different frequencies.hi(t1,f1) indicate small in service
First channel quality estimates of i-th of UAV terminal device on the first time domain, the first frequency domain in area, and hi(t2,f1) table
Show second channel quality evaluation value of i-th of UAV terminal device on the second time domain, the first frequency domain in the serving cells.?
That is the first and second channel estimation values are determined according to the RE for the different time domain for being in same frequency domain.
Therefore, | hi(t2,f1)-hi(t1,f1) | indicate second channel quality evaluation value and the first channel quality estimates it
Between difference absolute value.μ is the ratio of the absolute value of second channel quality evaluation value and the absolute value of above-mentioned difference.Once poor
Value is intended to zero, then the value of μ is intended to infinity.Illustrate the uplink between first terminal equipment 110 and first network equipment 120
There is no interference in link channel.If the difference between second channel quality evaluation value and the first channel quality estimates is not
Zero, then there is between first terminal equipment 110 and first network equipment 120 interference in explanation in uplink channel, this
In the case of, μ should substantially limited real number.
In certain embodiments, the difference between second channel quality evaluation value and the first channel quality estimates is not zero
When, first network equipment 120 can be determined by a predetermined threshold value in first terminal equipment 110 and first network equipment 120
Between in uplink channel with the presence or absence of interference.If μ is less than the threshold value, in first terminal equipment 110 and first network
There are UL SRS pollutions in uplink channel between equipment 120, if μ is greater than the threshold value, in 110 He of first terminal equipment
There is no UL SRS to pollute in uplink channel between first network equipment 120.
Fig. 5 shows the situation of the double SRS configurations of the another kind different from Fig. 4 of embodiment according to the present invention.In Fig. 5
Schematically illustrate tdd frame 500.As can be seen that frame 500 may include special subframe (SSF) 505 and uplink subframe
(USF)510.The time-frequency figure of its corresponding uplink is mapped out with USF 510 by SSF 505, wherein abscissa indicates the time
And ordinate indicates frequency.There is uplink transmission region 515 in SSF.As already described above, in some embodiments
In, configuration information can indicate that NB-SRS and WB-SRS are transmitted on the uplink transmission region of SSF.
As shown in figure 5, in certain embodiments, the NB-SRS of first terminal equipment 110 can be passed with the uplink in SSF
(filling in figure with grid lines) is transmitted on the RE 520 in defeated region 515, the WB-SRS of corresponding first terminal equipment 110
It can be transmitted on the RE 525 of the uplink transmission region 515 in SSF.As can be seen that RE 520 and RE 525 is in frequency domain
It is upper identical, only difference in the time domain.
In addition, as shown in figure 5, can also include being and first terminal equipment on uplink transmission region 515 in SSF
In identical serving cell UAV (such as third terminal equipment) configuration RE 530 and corresponding thereto on SSF
RE 535.In the case where Fig. 5 is shown, whole RE in the last one OFDM symbol in USF (such as RE 540,
Filled in figure with oblique line) it can be used for ground terminal.In this way, it is possible to provide difference for UAV user and terrestrial user
SRS transmission scheme.Such as.In order to reduce UAV UL SRS pollution and UL interference, Wave beam forming is can be used in UAV user
SRS transmission.
The situation of the method for channel quality estimation under the situation of the configuration shown in Fig. 5 and the configuration being shown in FIG. 4
Under channel quality estimation method it is consistent, therefore details are not described herein.
Fig. 6 is the method 600 for communication for implementing at the network equipment shown according to the embodiment of the present disclosure
Flow chart.Method 600 shown in Fig. 6 can for example be implemented after the method 300 shown in Fig. 3.It is appreciated that in Fig. 6
The embodiment of description can be implemented for example at first network equipment 120 as shown in Figure 1.
As shown in fig. 6, in frame 625, it is determined whether detect that UL SRS pollutes, if detecting that UL SRS pollutes,
Frame 330, first network equipment 120 for example can by change into first terminal equipment 110 configuration UL SRS configuration parameter come
It avoids interfering.As interchangeable settling mode, first network equipment 120 can will for example configure for first terminal equipment 110
UL SRS configuration information be sent to second network equipment 140 so that second network equipment 140 can change in its clothes
The UL SRS configuration information of second terminal equipment 130 in cell of being engaged in.As another interchangeable settling mode, first network is set
Standby 120 can for example set to the cell broadcast service of cluster (cluster) associated with first network equipment 120 for first terminal
The UL SRS configuration information of standby 110 configuration.
If be not detected UL SRS pollution, in such a case, it is possible to consider to take some measures avoid after resume
The UL interference being likely to occur in defeated.For example, according to some embodiments, since UAV user has LOS channel, first network equipment
120 can determine the power level of the second terminal equipment 130 of neighboring community.In certain embodiments, it is not assigned on SSF
The narrowband reference information of other terminal devices of first terminal equipment 110 or the serving cell in first network equipment 120
RE detects the power level.Such as the RE 545 being shown in FIG. 5.
In certain embodiments, in frame 635, first network equipment 120 detects the power level of second terminal equipment 130,
If in frame 640, it is determined that the power level exceeds threshold value, then in frame 645, the mode for taking minizone to cooperate is avoided in transmission
The UL interference being likely to occur.For example, in certain embodiments, first network equipment 110 can be issued to neighboring community reduces function
The request of rate.Alternatively, first network equipment 120 can for example configure the UL SRS configured for first terminal equipment 110
Information is sent to second network equipment 140.
Fig. 7 shows the flow chart of the exemplary communication method 700 according to some embodiments of the disclosure.It is appreciated that side
Method 700 can be implemented for example at first terminal equipment 110 as shown in Figure 1.For convenience of description, below with reference to Fig. 1 to method
700 are described.
In frame 710, first terminal equipment 110 receives the UL SRS configuration information from first network equipment 110, the information
Including the configuration information for uplink NB-SRS and uplink WB-SRS in identical frequency.In frame 720, first terminal equipment
110, based on the received configuration information of institute, send uplink NB-SRS and uplink WB-SRS to first network equipment.
According to some embodiments, configuration information can also transmit on SSF including instruction uplink NB-SRS, and uplink WB-
The first configuration information that SRS is transmitted on USF.Optionally, configuration information can also include instruction uplink NB-SRS and uplink WB-
The second configuration information that SRS is transmitted on special sub- SSF.
According to some embodiments, configuration information can also include the third of instruction uplink NB-SRS FM transmission on SSF
Configuration information.Optionally, configuration information can also include that instruction matches confidence on SSF for the uplink NB-SRS reserves resource the 4th
Breath.
It should be appreciated that the part of configuration information involved in method 700 above in conjunction with method 300 and Fig. 4 and
The time-frequency figure of Fig. 5 is described in detail.Part about the configuration information repeats no more in method 700.
Fig. 8 shows the block diagram for being suitable for realizing the equipment 800 of embodiment of the disclosure.Equipment 800 can be used to realize
First terminal equipment 110 or first network equipment 120 as shown in Figure 1.
As shown, equipment 800 includes controller 810.The operations and functions of the control equipment 800 of controller 810.For example,
In certain embodiments, controller 810 can be executed by means of the instruction 830 stored in coupled memory 820
Various operations.Memory 820 can be any suitable type suitable for local technical environment, and can use any conjunction
Suitable data storage technology realizes that the memory device, magnetic memory device and system, light including but not limited to based on semiconductor deposit
Memory device and system.Although illustrate only a memory cell in Fig. 8, there can be multiple physics in equipment 800
Different memory cells.
Controller 810 can be any suitable type suitable for local technical environment, and may include but unlimited
In general purpose computer, special purpose computer, microcontroller, digital signal controller (DSP) and based on controller multicore control
One or more of device framework is multiple.Equipment 800 also may include multiple controllers 810.Controller 810 and transceiver 840
Coupling, transceiver 840 can realize sending and receiving for information by means of one or more antennas 850 and/or other component.
When equipment 800 serves as first network equipment 120, controller 810 and transceiver 840 can be with compounding practices, with reality
The method 300 and 600 now described above with reference to Fig. 3 and Fig. 6.When equipment 800 serves as first terminal equipment 110, controller 810
It can be with compounding practice, to realize the method 700 described above with reference to Fig. 7 with transceiver 840.Above with reference to described by Fig. 1 to Fig. 5
All features be suitable for equipment 800, details are not described herein.
In general, the various example embodiments of the disclosure can hardware or special circuit, software, logic or its
What implement in combination.Some aspects can be implemented within hardware, and other aspects can by controller, microprocessor or
Other are calculated implements in the firmware or software that equipment executes.When the various aspects of embodiment of the disclosure are illustrated or described as frame
When figure, flow chart or other certain graphical representations of use, it will be understood that box described herein, device, system, techniques or methods can
Using as unrestricted example in hardware, software, firmware, special circuit or logic, common hardware or controller or other in terms of
It calculates and implements in equipment or its certain combination.
As an example, embodiment of the disclosure can be described in the context of machine-executable instruction, machine can be held
Row instruction such as includes in the program module executed in the device on the true or virtual processor of target.In general,
Program module includes routine, program, library, object, class, component, data structure etc., executes specific task or realizes specific
Abstract data structure.In embodiments, the function of program module can merge between described program module or
Segmentation.Machine-executable instruction for program module can execute in local or distributed apparatus.In distributed apparatus
In, program module can be located locally in remote medium storage the two.
The computer program code of method used to implement the present disclosure can be write with one or more programming languages.These
Computer program code can be supplied to the processing of general purpose computer, special purpose computer or other programmable data processing units
Device so that program code when being executed by computer or other programmable data processing units, cause flow chart and/
Or function/operation specified in block diagram is carried out.Program code can completely on computers, part on computers, conduct
Independent software package, part are on computers and part is held on a remote computer or server on the remote computer or completely
Row.
In the context of the disclosure, machine readable media can be include or storage be used for or about instruction execution system
Any tangible medium of the program of system, device or equipment.Machine readable media can be machine-readable signal medium or machine can
Read storage medium.Machine readable media can include but is not limited to electronics, magnetic, it is optical, electromagnetism, infrared or partly lead
Body system, device or equipment equipment or its any appropriate combination.The more detailed example of machine readable storage medium includes having one
Or the electrical connection of multiple conducting wires, portable computer diskette, hard disk, random access memories (RAM), read-only memory
(ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), light storage device, magnetic storage apparatus or its is any appropriate
Combination.
In addition, although operation is depicted with particular order, this simultaneously should not be construed and require this generic operation to show
Particular order is completed with sequential order, or executes the operation of all diagrams to obtain expected result.In some cases, more
Task or parallel processing can be beneficial.Similarly, although discussed above contain certain specific implementation details, this is not
It should be interpreted that any invention of limitation or the scope of the claims, and should be interpreted that the specific embodiment that can be directed to specific invention
Description.Certain features described in the context of separated embodiment can also be with combined implementation single real in this specification
It applies in example.Conversely, the various features described in the context of single embodiment can also discretely multiple embodiments or
Implement in any appropriate sub-portfolio.
Although with specific to the language description of structural features and or methods of action theme, but it is to be understood that institute
The theme limited in attached claim is not limited to above-described special characteristic or movement.On the contrary, above-described specific spy
Movement of seeking peace is as realization right.
Claims (21)
1. a kind of communication means, comprising:
At the network equipment, uplink reference signals configuration information is sent to first terminal equipment comprising in same frequency
The uplink narrowband reference signal of rate and the configuration information of upstream broadband reference signal；
The uplink narrowband reference signal sent in response to receiving the first terminal equipment based on the configuration information
With upstream broadband reference signal,
It determines from the uplink narrowband reference signal for the channel between the network equipment and the first terminal equipment
First channel quality estimation；
Determine that the second channel quality for the channel is estimated from the upstream broadband reference signal；And
Estimated based on first channel quality estimation and the second channel quality, the second terminal detected in neighboring community is set
The standby interference to the channel.
2. according to the method described in claim 1, wherein detect it is described interference include:
Determine the difference between first channel quality estimation and second channel quality estimation, and
Exceed threshold value in response to the difference, determines there is the interference of the uplink reference signals from the second terminal equipment.
3. according to the method described in claim 1, wherein sending the configuration information includes by sending institute with one of lower channel
State configuration information:
Physical Downlink Control Channel；And
Physical Downlink Shared Channel.
4. according to the method described in claim 1, the wherein configuration information further include:
First configuration information indicates that the uplink narrowband reference signal transmits on special subframe (SSF), and the broadband reference
Signal transmits on uplink subframe (USF)；Or
Second configuration information indicates the uplink narrowband reference signal and the broadband reference signal at special subframe (SSF)
Upper transmission.
5. according to the method described in claim 4, the wherein configuration information further include:
Third configuration information indicates uplink narrowband reference signal frequency-hopping transmissions on the SSF.
6. according to the method described in claim 4, the wherein configuration information further include:
4th configuration information, instruction is the uplink narrowband reference signal reservations resource on the SSF.
7. according to the method described in claim 1, further include:
In response to detecting the interference, change the configuration information.
8. according to the method described in claim 1, further include:
In response to detecting the interference, the neighboring community is sent by the configuration information.
9. according to the method described in claim 1, further include:
In response to detecting the interference, confidence is matched described in the cell broadcast service into cluster associated with the network equipment
Breath.
10. according to the method described in claim 1, further include:
In response to the interference from the second terminal equipment is not detected, the uplink of the second terminal equipment is detected with reference to letter
Number power level；And
Exceed threshold value in response to the power level,
The request for reducing the power is sent to the neighboring community；Or
The configuration information is sent to the neighboring community.
11. method according to claim 10, wherein detecting the power level and including:
It is examined based on the resource of the narrowband reference information for being not assigned to the first terminal equipment on special subframe (SSF)
Survey the power level.
12. according to the method described in claim 1, wherein the first terminal equipment and the second terminal equipment fly for nobody
Row device (UAV).
13. a kind of communication means, comprising:
At terminal device, the uplink reference signals configuration information from the network equipment is received comprising in same frequency
The uplink narrowband reference signal of rate and the configuration information of upstream broadband reference signal；And
The uplink narrowband reference signal and upstream broadband sent based on the configuration information is sent to the network equipment
Reference signal.
14. according to the method for claim 13, wherein the configuration information further include:
First configuration information indicates that the uplink narrowband reference signal transmits on special subframe (SSF), and the broadband reference
Signal transmits on uplink subframe (USF)；Or
Second configuration information indicates the uplink narrowband reference signal and the broadband reference signal at special subframe (SSF)
Upper transmission.
15. according to the method for claim 14, wherein the configuration information further include:
Third configuration information indicates uplink narrowband reference signal frequency-hopping transmissions on the SSF.
16. according to the method for claim 14, wherein the configuration information further include:
4th configuration information, instruction is the uplink narrowband reference signal reservations resource on the SSF.
17. according to the method for claim 13, wherein the terminal device is unmanned vehicle (UAV).
18. a kind of network equipment, comprising:
At least one processor；And
The memory coupled at least one described processor, the memory include to be stored in instruction therein, the finger
It enables when being executed by least one described processing unit, so that the network equipment executes according to claim 1 any one of -12
The movement.
19. a kind of terminal device, comprising:
At least one processor；And
The memory coupled at least one described processor, the memory include to be stored in instruction therein, the finger
Enable when being executed by least one described processing unit so that the network equipment execute it is any in 3-17 according to claim 1
The movement of item.
20. a kind of computer-readable medium, it is stored with instruction on the computer-readable medium, when described instruction is by least one
When a processing unit executes, so that at least one processing unit is configured as executing according to claim 1 any one of -12 institute
The method stated.
21. a kind of computer-readable medium, it is stored with instruction on the computer-readable medium, when described instruction is by least one
When a processing unit executes, so that at least one processing unit is configured as executing any one of 3-17 according to claim 1
The method.
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