CN105991216A - Method for configuration uplink frame structure based on LTE frame structure type 2 - Google Patents
Method for configuration uplink frame structure based on LTE frame structure type 2 Download PDFInfo
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- CN105991216A CN105991216A CN201510052167.7A CN201510052167A CN105991216A CN 105991216 A CN105991216 A CN 105991216A CN 201510052167 A CN201510052167 A CN 201510052167A CN 105991216 A CN105991216 A CN 105991216A
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Abstract
The present invention relates to a method for configuration uplink frame structure configured to realize session interception based on LTE frame structure type 2 in the base station of a wireless communication system. The first subframe of the uplink frame structure is configured to enforce the transmission of detection reference signals through a user device. The method comprises: determining the type of the first subframe and determining whether the last one symbol of the first subframe is configured to transmit the detection reference signals or not; and configuring the uplink frame structure according to the determined result. The inventor creates and provides the scheme of transmission association of the type of the frame structure and the detection reference signals to reserve part of sources for the transmission of the detection reference signals or realize the channel detection through other modes so as to provide powerful guarantee for following transmission of detection reference signals. According to the invention, the reliability of transmission of the detection reference signals can be improved, and the interception rule requirement prior to the session can be satisfied.
Description
Technical field
The present invention relates to wireless communication technology, in particular it relates at the base of wireless communication system
Stand and subscriber equipment is used for be configured to realize session based on LTE frame structure type 2 and detect
The method of the uplink frame structures listened.
Background technology
As required for the supervision demand in such as Europe, some region, in emitting side not
Carrier sense all should be performed, in order to many before carrying out any transmission on the frequency spectrum permitted
The best effect that coexists, this point A Erka is reached between operator/multi radio access technology
Special Lucent, Alcatel Lucent Shanghai Bell, Ericsson, Huawei, Hisilicon, LG, promise
Ji Ya company, nokia networks, high pass and NTT Docomo are R1-144348's
" the supervision demand of the frequency spectrum for not permitted " (Regulatory Requirements for
Unlicensed Spectrum) discussed among a literary composition.Do not permitted when considering
When ul transmissions among carrier wave, then user equipment (UE) is bolter.Now with
Family equipment side then must support carrier sense.
Need among LTE system detection reference signal (Sounding Reference Signal:
SRS) uplink time slot and whole transmit is maintained for up-link LTE TDD
Uplink channel quality is monitored on individual bandwidth.Therefore, if allowing ul transmissions
Words, detection reference signal SRS transmission also should must be on the carrier wave do not permitted
LTE TDD.In this case, SRS uploading at the carrier wave do not permitted how is supported
If defeated also should be paid attention in case be configured with among LAA detection reference signal SRS it
Time also be able to first intercept before following session the requirement of (LBT:Listen Before Talk).
Among LTE TDD system, subscriber equipment can be arranged to periodically and/
Or in place of last symbol of subframe, aperiodically transmit SRS.If SRS is certain
User device configuration, then so that LBT rule followed by this subscriber equipment, then need
To implement before SRS transmission clear channel assessment (CCA) (Channel Clearance Assessment:
CCA) detection.If there is no the uplink resource for data transmission of this subscriber equipment,
So this subscriber equipment should be in the subframe for detection reference signal SRS transmission configured
Penultimate symbol at implement clear channel assessment (CCA) CCA detection.Owing to examining for CCA
The energy measuring surveyed is to implement based on the whole broadband for SRS transmission, so in this use
Channel sense result before the detection reference signal SRS of family equipment would is that insecure, this
It is equally at the transmitting data of identical uplink sub-frames due to the subscriber equipment in community.
So, it should strengthen for the detection reference signal SRS transmission on the carrier wave do not permitted
Uplink frame structures, in order to avoid conflicting in the community of channel sense.
Summary of the invention
Devise a kind of novel based on existing LTE frame structure type 2 among the present invention
Frame structure so as to support the most flexible of the SRS transmission on the carrier wave do not permitted and
Channel sense reliably, and the advantage that simultaneously can keep existing LTE tdd frame structure.
Therefore, according to above-mentioned to background technology and the understanding of the technical problem of existence, the of the present invention
On the one hand propose a kind of in the base station of wireless communication system for based on LTE frame structure class
Type 2 is configured to the method realizing the uplink frame structures that session is intercepted, wherein, described
First subframe of uplink frame structures is for being implemented detection reference signal by subscriber equipment
Transmission, the method includes:
C () determines type and last symbol of described first subframe of described first subframe
Whether it is arranged to the transmission of described detection reference signal；And
D () configures described uplink frame structures according to the described result determined.
The present inventor innovatively proposes so that frame structure type and detection reference signal
Transmission associates such that it is able to or provided by the transmission reserved part for detection reference signal
Source or realize Channel Detection by other means, thus be follow-up detection reference signal
Transmission provides sound assurance.Just the biography of detection reference signal can be improved according to the method for the present invention
Defeated reliability and meet session progress row and intercept rule (Listen-Before-Talk) requirement..
Among according to one embodiment of the present of invention, described step (d) farther includes:
(d1) when described first subframe be common uplink sub-frames and described first son
Last symbol of frame is when the transmission of described detection reference signal；And
(d2) the penultimate symbol of described first subframe is configured to idle characters or
Busy symbol.
The most just can by the configuration of the penultimate symbol of this first subframe with
The purposes of later symbol makes association such that it is able to be subsequently the biography of this detection reference signal
The defeated reliability providing necessary resource to improve sounding reference signal transmission enhancement further.
Among according to one embodiment of the present of invention, described step (d2) farther includes:
(d21) when the penultimate symbol of described first subframe is idle characters by described
Penultimate symbol remains for by described subscriber equipment in advance to implement clear channel assessment (CCA) detection.
As long as making by this way when a community there be subscriber equipment will be at last
The transmission of detection reference signal is carried out, then the subscriber equipment among these communities all on symbol
All penultimate symbol is remained in advance clear channel assessment (CCA) detection, and then is follow-up detection
The transmission of reference signal provides whether the information that channel quality is relevant, aid decision carry out detection ginseng
Examine the transmission of signal.
Among according to one embodiment of the present of invention, described step (d2) farther includes:
(d21 ') when the penultimate symbol of described first subframe is busy symbol,
Then limit community specific up-link detection reference signal (UDRS) to be used for assisting described spy
Survey the clear channel assessment (CCA) detection of reference signal.
Those skilled in the art is it is to be appreciated that work as among this first subframe reserved complete
During for empty penultimate symbol, it is also possible to by above-mentioned replacement form of implementation i.e. by little
The transmission of district's specific up-link detection reference signal UDRS assists for described detection
The clear channel assessment (CCA) of reference signal detects, and then the transmission for follow-up detection reference signal carries
For the information that channel quality is relevant, whether aid decision carries out the transmission of detection reference signal.
Among according to one embodiment of the present of invention, described step (d) farther includes:
(d1 ') will determine that described first subframe when described first subframe is special subframe
The symbolic number that UpPTS territory is comprised；And
(d2 ') configures described uplink frame structures according to described symbolic number.
The most innovatively special subframe is considered and by this special subframe according to the method for the present invention
The symbolic number that comprised with the UpPTS territory of this special subframe of frame structure associate, and then
Whether the transmission for subsequent probe reference signal provides information the most accurately, enter with aid decision
The transmission of row detection reference signal.
Among according to one embodiment of the present of invention, described step (d2 ') farther includes:
When described symbolic number is one, the most described first subframe is not adapted to by described use
Family equipment implements sounding reference signal transmission enhancement.
If owing to only having a symbol among this first subframe, then just can not carry out sky
Channel assessment detects, and the transmission of detection reference signal now is not the most reliably, therefore exists
Among the method for the foundation present invention, this first subframe is not adapted to by institute in this case
State subscriber equipment to implement sounding reference signal transmission enhancement.
Among according to one embodiment of the present of invention, described step (d2 ') farther includes:
When described symbolic number is two, by first symbol configuration in described UpPTS territory
For being implemented clear channel assessment (CCA) detection and by the in described UpPTS territory by subscriber equipment
Two symbols are configured to by described subscriber equipment to implement sounding reference signal transmission enhancement.
When the symbolic number in UpPTS territory is two, say, that UpPTS territory is entirely capable of
Enough transmission implementing clear channel assessment (CCA) detection and detection reference signal independently, so depending at this
According to the method for the present invention, first symbol in described UpPTS territory is configured to by subscriber equipment
Implement clear channel assessment (CCA) detection and by second symbol configuration in described UpPTS territory
For being implemented sounding reference signal transmission enhancement by described subscriber equipment, and then it is that subsequent probe is with reference to letter
Number transmission information the most accurately is provided, whether carry out detection reference signal with aid decision
Transmission.
Among according to one embodiment of the present of invention, described wireless communication system is for drill for a long time
Enter auxiliary and authorize access to wireless communication system.LTE-LAA system defined herein is only
A specific enforcement shape according to the system that method of the present invention may be implemented within
Formula, those skilled in the art is it is to be appreciated that include according to the enforcement scene of the method for the present invention
But it is not limited to Long Term Evolution auxiliary and authorizes access to wireless communication system LTE-LAA system.
A second aspect of the present invention proposes a kind of use in the subscriber equipment of wireless communication system
In being configured to realize the uplink frame knot that session is intercepted based on LTE frame structure type 2
The method of structure, wherein, the first subframe of described uplink frame structures is for being set by described user
The standby transmission implementing detection reference signal, the method includes:
P () described subscriber equipment is assessed channel quality and implements according to described assessment result
The transmission of described detection reference signal.
Make on the frequency range do not permitted according to the method described in a second aspect of the present invention
The transmission of detection reference signal necessarily will meet and first intercept rear session (LBT) rule, from
And different operators and the compossibility of communication equipment can be provided, reduce interference each other
And improve reliability and the success rate of communication simultaneously.
Among according to one embodiment of the present of invention, described step (p) farther includes:
If the penultimate symbol of-described first subframe is reserved for implementing idle channel
Assessment detection, the result that the most described subscriber equipment only detects at described clear channel assessment (CCA) is the free time
Time implement the transmission of described detection reference signal.
Those skilled in the art it is to be appreciated that under LBT rule, any transmission it
Before all must intercept, say, that the idle channel such as implemented among this method
Assessment detection, follow-up signal such as detection reference signal send inevitable the most also must be with above
The result of clear channel assessment (CCA) detection is foundation, and the most described subscriber equipment is only at described idle channel
The result of assessment detection is to implement the transmission of described detection reference signal during the free time.
Among according to one embodiment of the present of invention, described step (p) farther includes:
-when the penultimate symbol of described first subframe be not reserved for implement idle channel
When assessment detection and subscriber equipment have data transmission among described first subframe, then described
Subscriber equipment implements described detection reference signal at last symbol of described first subframe
Transmission.
The most just the transmission of detection reference signal can be realized, if this is because should
Have before subscriber equipment data transmission then mean the quality of this channel be reliable and also should
Subscriber equipment can utilize this channel, this be so-called clear channel assessment (CCA) detection be unnecessary
, in other words, it also is able to meet first to intercept pass afterwards even if not carrying out clear channel assessment (CCA) detection
Defeated LBT rule, it is also possible to the transmission ensureing follow-up detection reference signal is reliable.
Among according to one embodiment of the present of invention, described step (p) farther includes:
-when the penultimate symbol of described first subframe be not reserved for implement idle channel
When assessment detection and subscriber equipment do not have data transmission among described first subframe, then institute
State subscriber equipment blind check among described first subframe, with other of community, there is data transmission
The described community specific up-link detection reference signal (UDRS) that subscriber equipment is transmitted
To determine whether described subscriber equipment is implemented described at last symbol of described first subframe
The transmission of detection reference signal.
Here, owing to penultimate symbol is not reserved for implementing clear channel assessment (CCA) detection
And subscriber equipment does not have data transmission among described first subframe, and this is by independent
Clear channel assessment (CCA) detects or replaces according to the transmission of this subscriber equipment previously performed data
For clear channel assessment (CCA) detection be all infeasible, at this moment this subscriber equipment will blind check other with
Community specific up-link detection reference signal UDRS that the subscriber equipment of community is sent
To determine that other are for the interference of this subscriber equipment itself and then follow-up with the subscriber equipment of community
Whether described subscriber equipment implements described detection ginseng at last symbol of described first subframe
Examine the transmission of signal.
Among according to one embodiment of the present of invention, the specific up-link in described community is examined
The transmission surveying reference signal (UDRS) only takes up the third last symbol of described first subframe
Among part resource.
Must improve the utilization ratio of sign resources by this way, this is due to the most pre-
Single penultimate symbol is stayed to be entirely used for clear channel assessment (CCA) detection but by example
As the part resource among third last symbol transmits community specific up-link detection
The mode of reference signal UDRS realizes the evaluation and test of channel quality indirectly, after aid decision
Whether continuous described subscriber equipment implements described detection at last symbol of described first subframe
The transmission of reference signal.
Among according to one embodiment of the present of invention, described subscriber equipment will be described first
The energy detected in the penultimate symbol of subframe deducts by described community the most up
Other subscriber equipmenies that link detecting reference signal (UDRS) calculates are to described subscriber equipment
Interference and result that the result that draws detects as described clear channel assessment (CCA), described to determine
Whether subscriber equipment implements described detection with reference to letter at last symbol of described first subframe
Number transmission.
Those skilled in the art is it is to be appreciated that algorithm presented herein is merely exemplary
, the present invention includes but not limited to method described herein, in contrast, bag of the present invention
Include and all utilize community specific up-link detection reference signal UDRS to carry out computation-free letter
The form of implementation of the result of road assessment detection.
Among according to one embodiment of the present of invention, described wireless communication system is for drill for a long time
Enter auxiliary and authorize access to wireless communication system.
LTE-LAA system defined herein is only can according to method of the present invention
One specific form of implementation of the system that can be implemented within, those skilled in the art should
Understand, include but not limited to that Long Term Evolution auxiliary authorizes according to the enforcement scene of the method for the present invention
Access to wireless communication system LTE-LAA system.
In sum, the present inventor innovatively proposes so that frame structure type and detection
The transmission of reference signal associates such that it is able to or by the transmission for detection reference signal
Reserved part resource or realize Channel Detection by other means, thus be follow-up detection
The transmission of reference signal provides sound assurance.Just detection ginseng can be improved according to the method for the present invention
Examine the reliability of transmission of signal and meet session progress row and intercept rule
(Listen-Before-Talk) requirement.
Accompanying drawing explanation
The following detailed description to non-limiting example is read by referring to accompanying drawing,
The other features, objects and advantages of the present invention will become more apparent upon.
Fig. 1 show according to the present invention in the base station of wireless communication system for based on
LTE frame structure type 2 carrys out flow process Figure 100 of the method for collocating uplink Link Frame Structure；
Fig. 2 show according to the present invention in the subscriber equipment of wireless communication system for base
Flow process Figure 200 of the method for collocating uplink Link Frame Structure is carried out in LTE frame structure type 2；
Fig. 3 shows a kind of possible form of implementation of uplink frame structures according to the present invention
300；
Fig. 4 shows a kind of possible form of implementation of uplink frame structures according to the present invention
400；
Fig. 5 shows a kind of possible form of implementation of uplink frame structures according to the present invention
500；And
Fig. 6 shows a kind of possible form of implementation of uplink frame structures according to the present invention
600。
In the drawings, run through different diagrams, same or similar reference represent identical or
Similar device (module) or step.
Detailed description of the invention
In the specific descriptions of following preferred embodiment, will be with reference to constituting a present invention part
Appended accompanying drawing.Appended accompanying drawing has been illustrated by way of example and has been capable of the present invention's
Specific embodiment.The embodiment of example is not intended as the limit all enforcements according to the present invention
Example.It is appreciated that without departing from the scope of the present invention, it is possible to use other are implemented
Example, it is also possible to carry out the structural or amendment of logicality.Therefore, following specific descriptions are also
Nonrestrictive, and the scope of the present invention is defined by the claims appended hereto.
A first aspect of the present invention propose a kind of in the base station of wireless communication system for base
It is configured to realize, in LTE frame structure type 2, uplink frame structures that session intercepts
Method, Fig. 1 shows flow process Figure 100 of the method according to the present invention.Wherein, up-link
First subframe of frame structure for being implemented the transmission of detection reference signal, the party by subscriber equipment
Method 100 includes:
First, among method step 110, it will determine the type and first of the first subframe
Whether last symbol of subframe is arranged to the transmission of detection reference signal；And
It follows that among method step 120, it will configure according to the result determined
Uplink frame structure.
The present inventor innovatively proposes so that frame structure type and detection reference signal
Transmission associates such that it is able to or provided by the transmission reserved part for detection reference signal
Source or realize Channel Detection by other means, thus be follow-up detection reference signal
Transmission provides sound assurance.Just the biography of detection reference signal can be improved according to the method for the present invention
Defeated reliability and meet session progress row and intercept rule (Listen-Before-Talk) requirement.
Among according to one embodiment of the present of invention, step 120 farther includes:
Step 121 (not shown): when the first subframe is common uplink sub-frames
And last symbol of the first subframe is when the transmission of detection reference signal；And
Step 122 (not shown): the penultimate symbol of the first subframe is configured
For idle characters or busy symbol.
The most just can by the configuration of the penultimate symbol of this first subframe with
The purposes of later symbol makes association such that it is able to be subsequently the biography of this detection reference signal
The defeated reliability providing necessary resource to improve sounding reference signal transmission enhancement further.
Among according to one embodiment of the present of invention, step 122 farther includes:
Step 1221 (not shown): when the penultimate symbol of the first subframe is empty
Time penultimate symbol remained in advance by subscriber equipment to implement clear channel assessment (CCA) detection.
As long as making by this way when a community there be subscriber equipment will be at last
The transmission of detection reference signal is carried out, then the subscriber equipment among these communities all on symbol
All penultimate symbol is remained in advance clear channel assessment (CCA) detection, and then is follow-up detection
The transmission of reference signal provides whether the information that channel quality is relevant, aid decision carry out detection ginseng
Examine the transmission of signal.
Among according to one embodiment of the present of invention, step 122 farther includes:
Step 1221 ' (not shown): when the penultimate symbol of the first subframe is non-
Time empty, then limit community specific up-link detection reference signal (UDRS) to assist use
Clear channel assessment (CCA) in detection reference signal detects.
Those skilled in the art is it is to be appreciated that work as among this first subframe reserved complete
During for empty penultimate symbol, it is also possible to by above-mentioned replacement form of implementation i.e. by little
The transmission of district's specific up-link detection reference signal UDRS assists for detecting reference
The clear channel assessment (CCA) of signal detects, and then the transmission for follow-up detection reference signal provides letter
The information that road quality is relevant, whether aid decision carries out the transmission of detection reference signal.
Among according to one embodiment of the present of invention, step 120 farther includes:
Step 121 ' (not shown): will determine that when the first subframe is special subframe
The symbolic number that the UpPTS territory of one subframe is comprised；And
Step 122 ' (not shown): carry out collocating uplink isl frame knot according to symbolic number
Structure.
The most innovatively special subframe is considered and by this special subframe according to the method for the present invention
The symbolic number that comprised with the UpPTS territory of this special subframe of frame structure associate, and then
Whether the transmission for subsequent probe reference signal provides information the most accurately, enter with aid decision
The transmission of row detection reference signal.
Among according to one embodiment of the present of invention, step 122 ' farther include:
When symbolic number is one, then the first subframe is not adapted to be implemented by subscriber equipment
Sounding reference signal transmission enhancement.
If owing to only having a symbol among this first subframe, then just can not carry out sky
Channel assessment detects, and the transmission of detection reference signal now is not the most reliably, therefore exists
According to the present invention method among in this case this first subframe be not adapted to by with
Family equipment implements sounding reference signal transmission enhancement.
Among according to one embodiment of the present of invention, step 122 ' farther include:
When symbolic number is two, first symbol in UpPTS territory is configured to by user
Equipment implements clear channel assessment (CCA) detection and by second symbol configuration in UpPTS territory
For being implemented sounding reference signal transmission enhancement by subscriber equipment.
When the symbolic number in UpPTS territory is two, say, that UpPTS territory is entirely capable of
Enough transmission implementing clear channel assessment (CCA) detection and detection reference signal independently, so depending at this
It is configured to be come in fact by subscriber equipment by first symbol in UpPTS territory according to the method for the present invention
Execute clear channel assessment (CCA) detection and second symbol in UpPTS territory is configured to by user
Equipment implements sounding reference signal transmission enhancement, and then the transmission for subsequent probe reference signal provides
Whether information the most accurately, carry out the transmission of detection reference signal with aid decision.
Among according to one embodiment of the present of invention, wireless communication system is that Long Term Evolution is auxiliary
Help mandate access to wireless communication system.LTE-LAA system defined herein is only foundation
One specific form of implementation of the system that the method for the present invention may be implemented within, this area
Technical staff it is to be appreciated that include but not limited to long according to the enforcement scene of method of the present invention
Phase evolution auxiliary authorizes access to wireless communication system LTE-LAA system.
A second aspect of the present invention proposes a kind of use in the subscriber equipment of wireless communication system
In being configured to realize the uplink frame knot that session is intercepted based on LTE frame structure type 2
The method of structure, Fig. 2 shows flow process Figure 200 of the method according to the present invention.Wherein, up
First subframe of Link Frame Structure is used for being implemented the transmission of detection reference signal by subscriber equipment,
The method 200 includes:
Method step 210: subscriber equipment is assessed channel quality and comes according to assessment result real
Execute the transmission of detection reference signal.
The spy on the frequency range do not permitted is made according to the method for a second aspect of the present invention
The transmission of survey reference signal necessarily will meet first intercepts rear session (LBT) rule, it is thus possible to
Enough provide different operators and the compossibility of communication equipment, reduce interference each other and
Improve reliability and the success rate of communication simultaneously.
Among according to one embodiment of the present of invention, step 210 farther includes:
If the penultimate symbol of the-the first subframe is reserved for implementing clear channel assessment (CCA)
Detection, then detection ginseng only implemented by subscriber equipment when the result of clear channel assessment (CCA) detection is idle
Examine the transmission of signal.
Those skilled in the art it is to be appreciated that under LBT rule, any transmission it
Before all must intercept, say, that the idle channel such as implemented among this method
Assessment detection, follow-up signal such as detection reference signal send inevitable the most also must be with above
The result of clear channel assessment (CCA) detection is that foundation, i.e. subscriber equipment only detect at clear channel assessment (CCA)
Result implement the transmission of detection reference signal when being the free time.
Among according to one embodiment of the present of invention, step 210 farther includes:
-when the penultimate symbol of the first subframe be not reserved for implement clear channel assessment (CCA)
When detection and subscriber equipment have data transmission among the first subframe, then subscriber equipment is the
Last symbol of one subframe implements the transmission of detection reference signal.
The most just the transmission of detection reference signal can be realized, if this is because should
Have before subscriber equipment data transmission then mean the quality of this channel be reliable and also should
Subscriber equipment can utilize this channel, this be so-called clear channel assessment (CCA) detection be unnecessary
, in other words, it also is able to meet first to intercept pass afterwards even if not carrying out clear channel assessment (CCA) detection
Defeated LBT rule, it is also possible to the transmission ensureing follow-up detection reference signal is reliable.
Among according to one embodiment of the present of invention, step 210 farther includes:
-when the penultimate symbol of the first subframe be not reserved for implement clear channel assessment (CCA)
When detection and subscriber equipment do not have data transmission among the first subframe, then subscriber equipment exists
Among first subframe, blind check is transmitted with other subscriber equipmenies with data transmission of community
Community specific up-link detection reference signal (UDRS) is to determine that subscriber equipment is first
Whether last symbol of subframe implements the transmission of detection reference signal.
Here, owing to penultimate symbol is not reserved for implementing clear channel assessment (CCA) detection
And subscriber equipment does not have data transmission among the first subframe, and this is by the independent free time
Channel estimating detects or substitutes sky according to the transmission of this subscriber equipment previously performed data
Channel assessment detection is all infeasible, and at this moment this subscriber equipment will collect other same communities
Community specific up-link detection reference signal UDRS that sent of subscriber equipment and
It is carried out blind check to determine that other subscriber equipmenies with community are for this subscriber equipment itself
Disturb, and then whether subsequent user equipment implements detection ginseng at last symbol of the first subframe
Examine the transmission of signal.
Among according to one embodiment of the present of invention, the specific up-link in community detection ginseng
The transmission examining signal (UDRS) only takes up the portion among the third last symbol of the first subframe
Divide resource.
Must improve the utilization ratio of sign resources by this way, this is due to the most pre-
Single penultimate symbol is stayed to be entirely used for clear channel assessment (CCA) detection but by example
As the part resource among third last symbol transmits community specific up-link detection
The mode of reference signal UDRS realizes the evaluation and test of channel quality indirectly, after aid decision
Whether continuous subscriber equipment implements the biography of detection reference signal at last symbol of the first subframe
Defeated.
Among according to one embodiment of the present of invention, subscriber equipment is by falling in the first subframe
The energy detected in several second symbol deducts and is detected reference by the specific up-link in community
The knot that the interference of subscriber equipment is drawn by other subscriber equipmenies that signal (UDRS) calculates
Fruit is as the result of clear channel assessment (CCA) detection, to determine last in the first subframe of subscriber equipment
Whether one symbol implements the transmission of detection reference signal.
Those skilled in the art is it is to be appreciated that algorithm presented herein is merely exemplary
, the present invention includes but not limited to method described herein, in contrast, bag of the present invention
Include and all utilize community specific up-link detection reference signal UDRS to carry out computation-free letter
The form of implementation of the result of road assessment detection.
Among according to one embodiment of the present of invention, wireless communication system is that Long Term Evolution is auxiliary
Help mandate access to wireless communication system.
LTE-LAA system defined herein is only that the method according to the present invention may be
One specific form of implementation of the system wherein implemented, those skilled in the art should
Solve, include but not limited to that Long Term Evolution auxiliary mandate connects according to the enforcement scene of the method for the present invention
Enter wireless communication system LTE-LAA system.
Below with reference to concrete frame structure schematic diagram, the method institute according to the present invention is described real
Existing frame structure schematic diagram.Fig. 3 shows that the uplink frame structures one according to the present invention can
The form of implementation 300 of energy.From figure 3, it can be seen that among uplink sub-frames 300,
Later symbol is used for sounding reference signal transmission enhancement, and penultimate symbol is commented for idle channel
Estimating detection, and remaining N-2 symbol is physical uplink link shared channels, wherein, N is
Symbolic number included in one uplink sub-frames.
Fig. 4 shows a kind of possible form of implementation of uplink frame structures according to the present invention
400.From fig. 4, it can be seen that among uplink sub-frames 400, last symbol is used
In sounding reference signal transmission enhancement, penultimate symbol remains for clear channel assessment (CCA) inspection the most in advance
Survey, but this subscriber equipment has data transmission on symbol before, so this user sets
The standby transmission that can directly carry out detection reference signal on last symbol, and remaining
N-1 symbol is physical uplink link shared channels, and wherein, N is a uplink sub-frames
The symbolic number included in.It can be seen that have among third last symbol
Up-link detects reference signal and only takes up the resource of its part, those skilled in the art
It is to be appreciated that being arranged in by UDRS signal is not restricted among third last symbol
, and be merely exemplary, say, that the up-link detection among the present invention is with reference to letter
Number it also is able among other symbols be transmitted.
Fig. 5 shows a kind of possible form of implementation of uplink frame structures according to the present invention
500.From fig. 5, it can be seen that among uplink sub-frames 500, last symbol is used
In sounding reference signal transmission enhancement, penultimate symbol remains for clear channel assessment (CCA) inspection the most in advance
Survey, but this subscriber equipment does not have data transmission on symbol before, so this user
Equipment needs to detect other and with the UDRS signal of the subscriber equipment of community and carries out blind to it
Inspection is to obtain the interference for this subscriber equipment itself of other subscriber equipmenies, then second from the bottom
Clear channel assessment (CCA) detection is carried out, finally by other subscriber equipmenies for this user among individual symbol
The clear channel assessment (CCA) detection that the interference of equipment itself is carried out on penultimate symbol
Deduct using the new result detected as clear channel assessment (CCA) to judge channel quality among result,
To determine whether to carry out the transmission of detection reference signal on last symbol, and remaining
N-1 symbol is physical uplink link shared channels, and wherein, N is a uplink sub-frames
The symbolic number included in.It can be seen that have among third last symbol
Up-link detects reference signal and only takes up the resource of its part, those skilled in the art
It is to be appreciated that being arranged in by UDRS signal is not restricted among third last symbol
, and be merely exemplary, say, that the up-link detection among the present invention is with reference to letter
Number it also is able among other symbols be transmitted.
Fig. 6 shows a kind of possible form of implementation of uplink frame structures according to the present invention
600.From fig. 6, it can be seen that this uplink sub-frames is special subframe, at special subframe 600
Among, last symbol is used for sounding reference signal transmission enhancement, and penultimate symbol is for sky
Channel assessment detects, and the two symbol has collectively constituted the UpPTS territory of this special subframe,
In other situations, i.e. the feelings of a symbol are only comprised when the UpPTS territory of special subframe
Under condition, such special subframe will not be used for transmitting detection reference signal.
In sum, the present inventor innovatively proposes so that frame structure type and detection
The transmission of reference signal associates such that it is able to or by the transmission for detection reference signal
Reserved part resource or realize Channel Detection by other means, thus be follow-up detection
The transmission of reference signal provides sound assurance, so just can improve spy according to the method for the present invention
Survey the reliability of the transmission of reference signal, and then improve the performance of whole wireless communication system.
It is obvious to a person skilled in the art that the invention is not restricted to above-mentioned exemplary enforcement
The details of example, and without departing from the spirit or essential characteristics of the present invention, it is possible to
Other concrete form realizes the present invention.Therefore, in any case from the point of view of, embodiment all should be seen
Work is exemplary, and is nonrestrictive.Additionally, it will be evident that " an including " word is not arranged
Except other elements and step, and wording " one " is not excluded for plural number.In device claim old
The multiple elements stated can also be realized by an element.The first, the second word such as grade is used for representing
Title, and it is not offered as any specific order.
Claims (15)
1. one kind is used for based on LTE frame structure type 2 in the base station of wireless communication system
The method being configured to realize the uplink frame structures that session is intercepted, wherein, described uplink
First subframe of road frame structure, should for being implemented the transmission of detection reference signal by subscriber equipment
Method includes:
C () determines type and last symbol of described first subframe of described first subframe
Whether it is arranged to the transmission of described detection reference signal；And
D () configures described uplink frame structures according to the described result determined.
Method the most according to claim 1, wherein, described step (d) is wrapped further
Include:
(d1) it is common uplink sub-frames and described first subframe when described first subframe
Last symbol be when the transmission of described detection reference signal；And
(d2) the penultimate symbol of described first subframe is configured to idle characters or non-
Idle characters.
Method the most according to claim 2, wherein, described step (d2) is further
Including:
(d21) when the penultimate symbol of described first subframe is idle characters by described
Penultimate symbol remains for by described subscriber equipment in advance to implement clear channel assessment (CCA) detection.
Method the most according to claim 2, wherein, described step (d2) is further
Including:
(d21 ') when the penultimate symbol of described first subframe is busy symbol, then
Limit community specific up-link detection reference signal (UDRS) to be used for assisting described detection
The clear channel assessment (CCA) detection of reference signal.
Method the most according to claim 1, wherein, described step (d) is wrapped further
Include:
(d1 ') will determine that described first subframe when described first subframe is special subframe
The symbolic number that UpPTS territory is comprised；And
(d2 ') configures described uplink frame structures according to described symbolic number.
Method the most according to claim 5, wherein, described step (d2 ') is further
Including:
When described symbolic number is one, the most described first subframe is not adapted to by described user
Equipment implements sounding reference signal transmission enhancement.
Method the most according to claim 5, wherein, described step (d2 ') is further
Including:
When described symbolic number is two, by first symbol configuration in described UpPTS territory
For being implemented clear channel assessment (CCA) detection and by the in described UpPTS territory by subscriber equipment
Two symbols are configured to by described subscriber equipment to implement sounding reference signal transmission enhancement.
Method the most according to claim 1, wherein, described wireless communication system is for long
Phase evolution auxiliary authorizes access to wireless communication system.
9. one kind is used for based on LTE frame structure type in the subscriber equipment of wireless communication system
2 are configured to the method realizing the uplink frame structures that session is intercepted, wherein, described on
First subframe of uplink frame structure is for being implemented detection reference signal by described subscriber equipment
Transmission, the method includes:
P () described subscriber equipment is assessed channel quality and implements according to described assessment result
The transmission of described detection reference signal.
Method the most according to claim 9, wherein, described step (p) is further
Including:
If the penultimate symbol of-described first subframe is reserved for implementing idle channel
Assessment detection, the result that the most described subscriber equipment only detects at described clear channel assessment (CCA) is the free time
Time implement the transmission of described detection reference signal.
11. methods according to claim 9, wherein, described step (p) is further
Including:
-when the penultimate symbol of described first subframe be not reserved for implement idle channel
When assessment detection and subscriber equipment have data transmission among described first subframe, then described
Subscriber equipment implements described detection reference signal at last symbol of described first subframe
Transmission.
12. methods according to claim 9, wherein, described step (p) is further
Including:
-when the penultimate symbol of described first subframe be not reserved for implement idle channel
When assessment detection and subscriber equipment do not have data transmission among described first subframe, then institute
State subscriber equipment blind check among described first subframe, with other of community, there is data transmission
The described community specific up-link detection reference signal (UDRS) that subscriber equipment is transmitted
To determine whether described subscriber equipment is implemented described at last symbol of described first subframe
The transmission of detection reference signal.
13. methods according to claim 12, wherein, described community is the most up
The transmission of link detecting reference signal (UDRS) only takes up the third from the bottom of described first subframe
Part resource among individual symbol.
14. methods according to claim 11, wherein, described subscriber equipment will be in institute
State the energy detected in the penultimate symbol of the first subframe and deduct by described community specific
Up-link detection reference signal (UDRS) other subscriber equipmenies of calculating to described use
The interference of family equipment and result that the result that draws detects as described clear channel assessment (CCA), with certainly
Whether fixed described subscriber equipment implements described detection at last symbol of described first subframe
The transmission of reference signal.
15. methods according to claim 9, wherein, described wireless communication system is for long
Phase evolution auxiliary authorizes access to wireless communication system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851839A (en) * | 2017-03-14 | 2017-06-13 | 北京佰才邦技术有限公司 | Frame structure determines method and base station |
| CN107046732A (en) * | 2016-02-05 | 2017-08-15 | 上海贝尔股份有限公司 | Up frame transmission method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098086A (en) * | 2010-12-30 | 2011-06-15 | 中兴通讯股份有限公司 | Data transmission method and device |
| CN103460740A (en) * | 2011-02-07 | 2013-12-18 | 交互数字专利控股公司 | Method and apparatus for operating supplementary cells in licensed exempt spectrum |
-
2015
- 2015-01-30 CN CN201510052167.7A patent/CN105991216B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098086A (en) * | 2010-12-30 | 2011-06-15 | 中兴通讯股份有限公司 | Data transmission method and device |
| CN103460740A (en) * | 2011-02-07 | 2013-12-18 | 交互数字专利控股公司 | Method and apparatus for operating supplementary cells in licensed exempt spectrum |
| US20140161002A1 (en) * | 2011-02-07 | 2014-06-12 | Jean-Louis Gauvreau | Method and apparatus for operating supplementary cells in licensed exempt spectrum |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046732A (en) * | 2016-02-05 | 2017-08-15 | 上海贝尔股份有限公司 | Up frame transmission method and device |
| CN107046732B (en) * | 2016-02-05 | 2020-04-17 | 上海诺基亚贝尔股份有限公司 | Uplink frame transmission method and device |
| CN106851839A (en) * | 2017-03-14 | 2017-06-13 | 北京佰才邦技术有限公司 | Frame structure determines method and base station |
| CN106851839B (en) * | 2017-03-14 | 2020-06-12 | 北京佰才邦技术有限公司 | Frame structure determining method and base station |
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