CN105610557B - SRS sending method and device under a kind of LTE carrier aggregation - Google Patents
SRS sending method and device under a kind of LTE carrier aggregation Download PDFInfo
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- CN105610557B CN105610557B CN201510621869.2A CN201510621869A CN105610557B CN 105610557 B CN105610557 B CN 105610557B CN 201510621869 A CN201510621869 A CN 201510621869A CN 105610557 B CN105610557 B CN 105610557B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Abstract
The present invention proposes SRS sending method and device under a kind of LTE carrier aggregation, belongs to wireless communication technology field.Under TDD-FDD CA scene, base station is the method for UE distribution SRS resource under FDD on TDD carrier wave in the case where the SRS distribution method of UE under not changing original TDD.This method individually sends the SRS of FDD UE using the penultimate symbol of TDD special subframe, and using frequency domain subregion is pressed on this symbol, every area keeps for a FDD carrier wave, and UE distributes resource on this symbol by period and frequency domain under FDD carrier wave.This invention simplifies the schemes on TDD carrier wave being FDD UE distribution SRS, FDD UE independent distribution SRS in the symbol of special subframe, it will not influence the original SRS method of salary distribution of TDD, the SRS resource of TDD can also be sufficiently ensured simultaneously, original resource oneself uses, and will not mark off resource to use for other carrier waves.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly it relates to the SRS under a kind of LTE carrier aggregation
Sending method and device.
Background technique
In order to cater to the demand of handling capacity and capacity in following LTE scene, it would be desirable to go to combine by various technologies
The frequency spectrum of two kinds of standards TDD and FDD of existing E-UTRAN, to improve the availability of frequency spectrum.The carrier wave of LTE TDD-FDD polymerize
(CA) a solution of above-mentioned target can be become.
TDD-FDD CA refers to that the carrier wave of FDD frequency range and the carrier wave of TDD frequency range carry out carrier wave polymerization, schematic diagram such as Fig. 1 institute
Show.
One TDD carrier wave and FDD carrier wave have carried out carrier wave polymerization, and UE is not limited to transmit on a carrier wave, it can be
It is separately or concurrently transmitted on TDD carrier wave and FDD carrier wave.
Two kinds of duplex modes, i.e. frequency division duplex (FDD-Frequency Division Duplex) system are defined in LTE
System and time division duplex (TDD-Time Division Duplex) system.The frame structure of the two is different, FDD frame structure
Each subframe is 1 millisecond, and TDD system defines 1~2 special subframe in each frame (10 subframes), special
Different subframe is made of descending time slot (DwPTS), protection interval (GP), ascending time slot (UpPTS) three parts.Schematic diagram such as Fig. 2 institute
Show, wherein D indicates that downlink subframe, U indicate sub-frame of uplink, and S is special subframe.
UpPTS generally comprises one or two uplink symbol, can be used to carry out transmitting uplink data, can also carry out
SRS transmission.Unlike other subframes on UpPTS, most latter two symbol can transmit SRS signal, and ordinary circumstance
Under, only last symbol can just be used as transmitting SRS.
At TDD-FDD CA, the UE under FDD carrier wave can carry out SRS transmission on TDD carrier wave, be conducive to count in this way
Signal quality situation of the UE on TDD carrier wave under FDD, it is convenient to dispatch resource on TDD carrier wave for UE under FDD.
But the SRS resource of TDD is limited, SRS can only be transmitted in the last symbol of each subframe, and base station is used
The mode of time-division frequency division is that the UE under TDD carries out SRS resource distribution, if carrying out SRS points on TDD carrier wave again for UE under FDD
Match, then the complexity of entire SRS allocation plan can be very high, SRS resource also can be very nervous.
Therefore it needs to propose that a kind of new method is distributed to carry out the SRS under TDD-FDD CA, is not changing original TDD
In the case where the SRS distribution method of lower UE, SRS resource is distributed for UE under FDD on TDD carrier wave.
Summary of the invention
Present invention solves the technical problem that:
In the case where the SRS distribution method of UE under not changing original TDD, distributed on TDD carrier wave for UE under FDD
SRS resource.
Solving technical solution used by the technical problem is:
A kind of SRS sending method under LTE carrier aggregation, comprising:
Step 1: SRS resource is distributed for the UE under TDD carrier wave in the special subframe of TDD carrier wave, and is provided TDD's
Without transmitting uplink data in special subframe；
Step 2: resource is divided for FDD carrier wave in the special subframe of TDD carrier wave；
Step 3: SRS resource distribution is carried out in the resource divided for the UE under FDD carrier wave；
Step 4: UE is according to the resource of distribution in TDD carrier-wave transmission SRS under FDD.
Wherein, it for Step 1: distribute SRS resource in the special subframe of TDD carrier wave for the UE under TDD carrier wave, and advises
It is scheduled in the special subframe of TDD without transmitting uplink data；Specifically:
TDD carrier wave voluntarily in the special subframe of TDD carrier wave for it under UE distribute SRS resource, do not change TDD carrier wave
Original SRS method of salary distribution, the SRS resource of TDD UE the last one OFDM symbol in special subframe are distributed, and penultimate is empty
Playing OFDM symbol keeps for FDD UE to use, and provides under special subframe without transmitting uplink data.
Wherein, for step 2: dividing resource in the special subframe of TDD carrier wave for FDD carrier wave；Specifically:
According to the carrier case of polymerization, frequency domain subregion is pressed on reserved symbol, each area keeps for a FDD carrier wave；
Even there is N number of FDD carrier wave, just point N number of section；If TDD carrier wave is only with a FDD carrier aggregation, not subregion, this reserved symbol
It is used number entirely to UE under this FDD carrier wave.
Wherein, for step 3: carrying out SRS resource distribution in the resource divided for the UE under FDD carrier wave；Specifically
Are as follows:
One SRS period is set, distributes resource on reserved symbol by period and frequency domain, it is each special in a cycle
There is reserved symbol to transmit SRS for FDD UE in subframe, each divide multiple frequency-domain segments in reserved symbol to distribute to each UE,
After each FDD UE distributes TDD carrier wave SRS resource, then it is fixed in specific time-domain and frequency-domain position and transmits in each period
SRS；If this moment, UE had data transmission on TDD carrier wave, then current TDD carrier wave is abandoned to the SRS transmission of FDD carrier wave
Chance.
Wherein, SRS resource distribution is carried out in the resource divided for the UE under FDD carrier wave is in TDD special subframe
Uplink symbol transmits the SRS information of FDD, can occupy a symbol in TDD special subframe in uplink symbol or two
Symbol occupies entirely；A symbol is such as occupied, then FDD UE penultimate symbol transmission SRS in special subframe uplink symbol,
TDD carrier wave is just in a symbol transmission SRS last；If FDD occupies two symbols, then UE is not sent out in special subframe under TDD
SRS information, the uplink symbol of two special subframes are all left UE under FDD for and are used.
A kind of SRS sending device under LTE carrier aggregation, comprising:
TDD carrier wave UE resource allocation unit, for being that the UE under TDD carrier wave distributes SRS in the special subframe of TDD carrier wave
Resource, and provide in the special subframe of TDD without transmitting uplink data；
TDD carrier wave FDD resource division unit, for being that FDD carrier wave divides resource in the special subframe of TDD carrier wave；
FDD carrier wave UE resource allocation unit, for carrying out SRS resource in the resource divided for the UE under FDD carrier wave
Distribution；
TDD carrier wave FDD SRS transmission unit, for UE under FDD according to the resource of distribution in TDD carrier-wave transmission SRS.
Wherein, for the TDD carrier wave UE resource allocation unit, it is specifically used for
TDD carrier wave voluntarily in the special subframe of TDD carrier wave for it under UE distribute SRS resource, do not change TDD carrier wave
Original SRS method of salary distribution, the SRS resource of TDD UE the last one OFDM symbol in special subframe are distributed, and penultimate is empty
Playing OFDM symbol keeps for FDD UE to use, and provides under special subframe without transmitting uplink data.
Wherein, for the TDD carrier wave FDD resource division unit, it is specifically used for
According to the carrier case of polymerization, frequency domain subregion is pressed on reserved symbol, each area keeps for a FDD carrier wave；
Even there is N number of FDD carrier wave, just point N number of section；If TDD carrier wave is only with a FDD carrier aggregation, not subregion, this reserved symbol
It is used number entirely to UE under this FDD carrier wave.
Wherein, for FDD carrier wave UE resource allocation unit, it is specifically used for
One SRS period is set, distributes resource on reserved symbol by period and frequency domain, it is each special in a cycle
There is reserved symbol to transmit SRS for FDD UE in subframe, each divide multiple frequency-domain segments in reserved symbol to distribute to each UE,
After each FDD UE distributes TDD carrier wave SRS resource, then it is fixed in specific time-domain and frequency-domain position and transmits in each period
SRS；If this moment, UE had data transmission on TDD carrier wave, then current TDD carrier wave is abandoned to the SRS transmission of FDD carrier wave
Chance.
Wherein, SRS resource distribution is carried out in the resource divided for the UE under FDD carrier wave is to be fixed on the special son of TDD
The uplink symbol of frame transmits the SRS information of FDD, can occupy a symbol in TDD special subframe in uplink symbol or
Two symbols occupy entirely；A symbol is such as occupied, then FDD UE penultimate symbol transmission in special subframe uplink symbol
SRS, TDD carrier wave are just in a symbol transmission SRS last；If FDD occupies two symbols, then UE is not in special son under TDD
Frame sends out SRS information, and the uplink symbol of two special subframes is all left UE under FDD for and used.
The utility model has the advantages that
SRS sending method under a kind of LTE carrier aggregation of the present invention, comprising: step 1: in the spy of TDD carrier wave
SRS resource is distributed for the UE under TDD carrier wave in different subframe, and is provided in the special subframe of TDD without transmitting uplink data；
Step 2: resource is divided for FDD carrier wave in the special subframe of TDD carrier wave；Step 3: it is being divided for the UE under FDD carrier wave
Resource in carry out SRS resource distribution；Step 4: UE is according to the resource of distribution in TDD carrier-wave transmission SRS under FDD.In TDD-
Under FDD CA scene, base station is in the case where the SRS distribution method of UE under not changing original TDD, under FDD on TDD carrier wave
UE distributes SRS resource, and allocation plan is simple, is easily achieved.This method is using the penultimate symbol of TDD special subframe come single
The SRS of FDD UE is solely sent, and using frequency domain subregion is pressed on this symbol, every area keeps for a FDD carrier wave, under FDD carrier wave
UE distributes resource on this symbol by period and frequency domain.This invention simplifies on TDD carrier wave be FDD UE distribute SRS scheme,
FDD UE independent distribution SRS in the symbol of special subframe will not influence the original SRS method of salary distribution of TDD, while may be used also
Sufficiently to ensure that the SRS resource of TDD, original resource oneself use, resource will not be marked off to use for other carrier waves.
Detailed description of the invention
Fig. 1: TDD-FDD CA schematic diagram.
Fig. 2: special subframe structure.
Fig. 3: the flow chart of the SRS sending method under a kind of LTE carrier aggregation provided by the invention.
Fig. 4: cross-carrier SRS allocation plan schematic diagram.
UE carries out SRS resource distribution diagram in reserved symbol under Fig. 5: FDD carrier wave.
Fig. 6: the structural block diagram of the SRS sending device under a kind of LTE carrier aggregation provided by the invention.
Keyword
LTE Long Term Evolution long term evolution
SRS Sounding Reference Signal detection reference signal
The polymerization of CA Carrier Aggregation carrier wave
TDD Time Division Duplexing time division duplex
FDD Frequency Division Duplexing frequency division duplex
UE User Equipment user equipment.
Specific embodiment
Inventive technique scheme is described in detail in the following with reference to the drawings and specific embodiments.
Fig. 3: the flow chart of the SRS sending method under a kind of LTE carrier aggregation provided by the invention.As shown in figure 3, this hair
SRS sending method under a kind of bright LTE carrier aggregation, comprising:
Step 1: SRS resource is distributed for the UE under TDD carrier wave in the special subframe of TDD carrier wave, and is provided TDD's
Without transmitting uplink data in special subframe；
Step 2: resource is divided for FDD carrier wave in the special subframe of TDD carrier wave；
Step 3: SRS resource distribution is carried out in the resource divided for the UE under FDD carrier wave；
Step 4: UE is according to the resource of distribution in TDD carrier-wave transmission SRS under FDD.
Under TDD-FDD CA scene, base station is in the case where the SRS distribution method of UE under not changing original TDD, in TDD
SRS resource is distributed for UE under FDD on carrier wave, allocation plan is simple, is easily achieved.
For Step 1: distribute SRS resource in the special subframe of TDD carrier wave for the UE under TDD carrier wave, and provide to exist
Without transmitting uplink data in the special subframe of TDD；Specifically:
As shown in figure 4, TDD carrier wave voluntarily in the special subframe of TDD carrier wave for it under UE distribute SRS resource, do not change
Become the original SRS method of salary distribution of TDD carrier wave, the SRS resource of TDD UE the last one OFDM symbol in special subframe is distributed,
Second sky of number plays OFDM symbol and FDD UE is kept for use, and provides under special subframe without transmitting uplink data.
For step 2: dividing resource in the special subframe of TDD carrier wave for FDD carrier wave；Specifically:
According to the carrier case of polymerization, frequency domain subregion is pressed on reserved symbol, each area keeps for a FDD carrier wave；
Even there is N number of FDD carrier wave, just point N number of section；If TDD carrier wave is only with a FDD carrier aggregation, not subregion, this reserved symbol
It is used number entirely to UE under this FDD carrier wave.
For step 3: carrying out SRS resource distribution in the resource divided for the UE under FDD carrier wave；Specifically:
As shown in figure 5, in one SRS period of setting, distribute resource, a cycle on reserved symbol by period and frequency domain
In there is in each special subframe reserved symbol to transmit SRS for FDD UE, each divide multiple frequency-domain segments in reserved symbol to divide
The each UE of dispensing after each FDD UE distributes TDD carrier wave SRS resource, is then fixed on specific time-domain and frequency-domain in each period
SRS is transmitted in position；If this moment, UE had data transmission on TDD carrier wave, then abandons current TDD carrier wave and FDD is carried
The SRS transmission chance of wave.
In the present solution, setting the SRS period, this period can be set to 10ms, 20ms, 40ms, 80ms.
As shown in figure 4, carrying out SRS resource distribution in the resource divided for the UE under FDD carrier wave is in the special son of TDD
The uplink symbol of frame transmits the SRS information of FDD, can occupy a symbol in TDD special subframe in uplink symbol or
Two symbols occupy entirely；A symbol is such as occupied, then FDD UE penultimate symbol transmission in special subframe uplink symbol
SRS, TDD carrier wave are just in a symbol transmission SRS last；If FDD occupies two symbols, then UE is not in special son under TDD
Frame sends out SRS information, and the uplink symbol of two special subframes is all left UE under FDD for and used.Accounting for two symbols biography FDD UE can be right
TDD SRS resource distribution method slightly influences, and this programme recommends FDD only to account for penultimate symbol, and last symbol is left for
TDD is used, and is not influenced on TDD SRS distribution in this way.
In conclusion the present invention proposes SRS sending method and device under a kind of LTE carrier aggregation, in TDD-FDD CA
Under scene, base station is in the case where the SRS distribution method of UE under not changing original TDD, for UE points under FDD on TDD carrier wave
Method with SRS resource.This method individually sends the SRS of FDD UE using the penultimate symbol of TDD special subframe, and
Using frequency domain subregion is pressed on this symbol, every area keeps for a FDD carrier wave, and UE is accorded with herein by period and frequency domain under FDD carrier wave
Resource is distributed on number.This invention simplifies the scheme on TDD carrier wave being FDD UE distribution SRS, symbol of the FDD UE in special subframe
Independent distribution SRS in number will not influence the original SRS method of salary distribution of TDD, while can also sufficiently ensure the SRS money of TDD
Source, original resource oneself use, and will not mark off resource to use for other carrier waves.
Fig. 6: the structural block diagram of the SRS sending device under a kind of LTE carrier aggregation provided by the invention.As shown in fig. 6, this
SRS sending device under a kind of invention LTE carrier aggregation, comprising:
TDD carrier wave UE resource allocation unit, for being that the UE under TDD carrier wave distributes SRS in the special subframe of TDD carrier wave
Resource, and provide in the special subframe of TDD without transmitting uplink data；
TDD carrier wave FDD resource division unit, for being that FDD carrier wave divides resource in the special subframe of TDD carrier wave；
FDD carrier wave UE resource allocation unit, for carrying out SRS resource in the resource divided for the UE under FDD carrier wave
Distribution；
TDD carrier wave FDD SRS transmission unit, for UE under FDD according to the resource of distribution in TDD carrier-wave transmission SRS.
It is distributed through the invention to carry out the SRS under TDD-FDD CA, the distribution side SRS of UE in the case where not changing original TDD
In the case where method, SRS resource is distributed for UE under FDD on TDD carrier wave, allocation plan is simple, is easily achieved.
For the TDD carrier wave UE resource allocation unit, it is specifically used for
TDD carrier wave voluntarily in the special subframe of TDD carrier wave for it under UE distribute SRS resource, do not change TDD carrier wave
Original SRS method of salary distribution, the SRS resource of TDD UE the last one OFDM symbol in special subframe are distributed, and penultimate is empty
Playing OFDM symbol keeps for FDD UE to use, and provides under special subframe without transmitting uplink data.
For the TDD carrier wave FDD resource division unit, it is specifically used for
According to the carrier case of polymerization, frequency domain subregion is pressed on reserved symbol, each area keeps for a FDD carrier wave；
Even there is N number of FDD carrier wave, just point N number of section；If TDD carrier wave is only with a FDD carrier aggregation, not subregion, this reserved symbol
It is used number entirely to UE under this FDD carrier wave.
For FDD carrier wave UE resource allocation unit, it is specifically used for
One SRS period is set, distributes resource on reserved symbol by period and frequency domain, it is each special in a cycle
There is reserved symbol to transmit SRS for FDD UE in subframe, each divide multiple frequency-domain segments in reserved symbol to distribute to each UE,
After each FDD UE distributes TDD carrier wave SRS resource, then it is fixed in specific time-domain and frequency-domain position and transmits in each period
SRS；If this moment, UE had data transmission on TDD carrier wave, then current TDD carrier wave is abandoned to the SRS transmission of FDD carrier wave
Chance.
Carrying out SRS resource distribution in the resource divided for the UE under FDD carrier wave is be fixed on TDD special subframe upper
Row symbol transmits the SRS information of FDD, can occupy a symbol or two symbols in TDD special subframe in uplink symbol
It is number complete to occupy；A symbol is such as occupied, then FDD UE penultimate symbol transmission SRS, TDD in special subframe uplink symbol
Carrier wave is just in a symbol transmission SRS last；If FDD occupies two symbols, then UE does not send out SRS in special subframe under TDD
Information, the uplink symbol of two special subframes are all left UE under FDD for and are used.
In conclusion the present invention proposes SRS sending method and device under a kind of LTE carrier aggregation, in TDD-FDD CA
Under scene, base station is in the case where the SRS distribution method of UE under not changing original TDD, for UE points under FDD on TDD carrier wave
Method with SRS resource.This method individually sends the SRS of FDD UE using the penultimate symbol of TDD special subframe, and
Using frequency domain subregion is pressed on this symbol, every area keeps for a FDD carrier wave, and UE is accorded with herein by period and frequency domain under FDD carrier wave
Resource is distributed on number.This invention simplifies the scheme on TDD carrier wave being FDD UE distribution SRS, symbol of the FDD UE in special subframe
Independent distribution SRS in number will not influence the original SRS method of salary distribution of TDD, while can also sufficiently ensure the SRS money of TDD
Source, original resource oneself use, and will not mark off resource to use for other carrier waves.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. the SRS sending method under a kind of LTE carrier aggregation characterized by comprising
Step 1: SRS resource is distributed for the UE under TDD carrier wave in the special subframe of TDD carrier wave, and is provided in the special of TDD
Without transmitting uplink data in subframe；
Step 2: resource is divided for FDD carrier wave in the special subframe of TDD carrier wave；
Step 3: SRS resource distribution is carried out in the resource divided for the UE under FDD carrier wave；
Step 4: UE is according to the resource of distribution in TDD carrier-wave transmission SRS under FDD.
2. the SRS sending method under a kind of LTE carrier aggregation according to claim 1, which is characterized in that for step
One, SRS resource is distributed for the UE under TDD carrier wave in the special subframe of TDD carrier wave, and provided in the special subframe of TDD not
Carry out transmitting uplink data；Specifically:
TDD carrier wave voluntarily in the special subframe of TDD carrier wave for it under UE distribute SRS resource, it is original not change TDD carrier wave
The SRS method of salary distribution, the SRS resource of TDD UE the last one OFDM symbol in special subframe are distributed, and penultimate sky rises
OFDM symbol keeps for FDD UE to use, and provides under special subframe without transmitting uplink data.
3. the SRS sending method under a kind of LTE carrier aggregation according to claim 2, which is characterized in that for step
Two: dividing resource in the special subframe of TDD carrier wave for FDD carrier wave；Specifically:
According to the carrier case of polymerization, frequency domain subregion is pressed on reserved symbol, each area keeps for a FDD carrier wave；Even
There is N number of FDD carrier wave, just point N number of section；If TDD carrier wave is only with a FDD carrier aggregation, subregion, this reserved symbol be not complete
It is used to UE under this FDD carrier wave.
4. the SRS sending method under a kind of LTE carrier aggregation according to claim 3, which is characterized in that for step
Three: SRS resource distribution is carried out in the resource divided for the UE under FDD carrier wave；Specifically:
One SRS period is set, distributes resource, each special subframe in a cycle on reserved symbol by period and frequency domain
In there is reserved symbol to transmit SRS for FDD UE, each divide multiple frequency-domain segments to distribute to each UE, each in reserved symbol
After FDD UE distributes TDD carrier wave SRS resource, then it is fixed in each period in specific time-domain and frequency-domain position and transmits SRS；Such as
This moment of fruit, UE had data transmission on TDD carrier wave, then then abandoning current TDD carrier wave to the SRS transmission chance of FDD carrier wave.
5. the SRS sending method under a kind of LTE carrier aggregation according to claim 1, which is characterized in that be FDD carrier wave
Under UE carried out in the resource divided SRS resource distribution be the SRS for transmitting FDD in the uplink symbol of TDD special subframe
Information can occupy a symbol or two symbols in TDD special subframe in uplink symbol and occupy entirely；Such as occupy a symbol
Number, then FDD UE penultimate symbol transmission SRS, TDD carrier wave in special subframe uplink symbol is just accorded at last
Number transmission SRS；If FDD occupies two symbols, then UE does not send out SRS information in special subframe under TDD, two special subframes it is upper
Row symbol is all left UE under FDD for and is used.
6. the SRS sending device under a kind of LTE carrier aggregation characterized by comprising
TDD carrier wave UE resource allocation unit, for being that the UE under TDD carrier wave distributes SRS money in the special subframe of TDD carrier wave
Source, and provide in the special subframe of TDD without transmitting uplink data；
TDD carrier wave FDD resource division unit, for being that FDD carrier wave divides resource in the special subframe of TDD carrier wave；
FDD carrier wave UE resource allocation unit, for carrying out SRS resource distribution in the resource divided for the UE under FDD carrier wave；
TDD carrier wave FDD SRS transmission unit, for UE under FDD according to the resource of distribution in TDD carrier-wave transmission SRS.
7. the SRS sending device under a kind of LTE carrier aggregation according to claim 6, which is characterized in that for described
TDD carrier wave UE resource allocation unit, is specifically used for
TDD carrier wave voluntarily in the special subframe of TDD carrier wave for it under UE distribute SRS resource, it is original not change TDD carrier wave
The SRS method of salary distribution, the SRS resource of TDD UE the last one OFDM symbol in special subframe are distributed, and penultimate sky rises
OFDM symbol keeps for FDD UE to use, and provides under special subframe without transmitting uplink data.
8. the SRS sending device under a kind of LTE carrier aggregation according to claim 7, which is characterized in that for described
TDD carrier wave FDD resource division unit, is specifically used for
According to the carrier case of polymerization, frequency domain subregion is pressed on reserved symbol, each area keeps for a FDD carrier wave；Even
There is N number of FDD carrier wave, just point N number of section；If TDD carrier wave is only with a FDD carrier aggregation, subregion, this reserved symbol be not complete
It is used to UE under this FDD carrier wave.
9. the SRS sending device under a kind of LTE carrier aggregation according to claim 8, which is characterized in that FDD is carried
Wave UE resource allocation unit, is specifically used for
One SRS period is set, distributes resource, each special subframe in a cycle on reserved symbol by period and frequency domain
In there is reserved symbol to transmit SRS for FDD UE, each divide multiple frequency-domain segments to distribute to each UE, each in reserved symbol
After FDD UE distributes TDD carrier wave SRS resource, then it is fixed in each period in specific time-domain and frequency-domain position and transmits SRS；Such as
This moment of fruit, UE had data transmission on TDD carrier wave, then then abandoning current TDD carrier wave to the SRS transmission chance of FDD carrier wave.
10. the SRS sending device under a kind of LTE carrier aggregation according to claim 6, which is characterized in that be FDD carrier wave
Under UE SRS resource distribution is carried out in the resource divided is to be fixed on the uplink symbol of TDD special subframe to transmit FDD's
SRS information can occupy a symbol or two symbols in TDD special subframe in uplink symbol and occupy entirely；Such as occupy one
A symbol, then FDD UE in special subframe uplink symbol penultimate symbol transmission SRS, TDD carrier wave just last
A symbol transmission SRS；If FDD occupies two symbols, then UE does not send out SRS information, two special subframes in special subframe under TDD
Uplink symbol all leave under FDD UE for and use.
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| CN201510621869.2A CN105610557B (en) | 2015-09-25 | 2015-09-25 | SRS sending method and device under a kind of LTE carrier aggregation |
| PCT/CN2016/092830 WO2017050018A1 (en) | 2015-09-25 | 2016-08-02 | Srs sending method and device in lte carrier aggregation |
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| CN201510621869.2A CN105610557B (en) | 2015-09-25 | 2015-09-25 | SRS sending method and device under a kind of LTE carrier aggregation |
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| CN105610557B (en) * | 2015-09-25 | 2019-01-04 | 武汉虹信通信技术有限责任公司 | SRS sending method and device under a kind of LTE carrier aggregation |
| US10873403B2 (en) * | 2016-09-02 | 2020-12-22 | Qualcomm Incorporated | Signaling mechanism to enable local operation for multi-antenna wireless communication systems |
| CN111479324B (en) * | 2019-01-24 | 2023-04-07 | 中国移动通信有限公司研究院 | Resource allocation method, network side equipment and terminal |
| WO2023197158A1 (en) * | 2022-04-12 | 2023-10-19 | Oppo广东移动通信有限公司 | Wireless communication method, terminal device, and network device |
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| CN101541029A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Sending method and device of measure-reference signal under state of carrier aggregation |
| WO2015053590A1 (en) * | 2013-10-11 | 2015-04-16 | 삼성전자 주식회사 | Method and apparatus for transmitting srs in celluar mobile communication system |
| US20150215095A1 (en) * | 2014-01-24 | 2015-07-30 | Lg Electronics Inc. | Method and apparatus for transmitting sounding reference signal |
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| CN105610557B (en) * | 2015-09-25 | 2019-01-04 | 武汉虹信通信技术有限责任公司 | SRS sending method and device under a kind of LTE carrier aggregation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101541029A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Sending method and device of measure-reference signal under state of carrier aggregation |
| WO2015053590A1 (en) * | 2013-10-11 | 2015-04-16 | 삼성전자 주식회사 | Method and apparatus for transmitting srs in celluar mobile communication system |
| US20150215095A1 (en) * | 2014-01-24 | 2015-07-30 | Lg Electronics Inc. | Method and apparatus for transmitting sounding reference signal |
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