CN107046698A - Channel reservation for authorizing auxiliary access - Google Patents
Channel reservation for authorizing auxiliary access Download PDFInfo
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- CN107046698A CN107046698A CN201610084102.5A CN201610084102A CN107046698A CN 107046698 A CN107046698 A CN 107046698A CN 201610084102 A CN201610084102 A CN 201610084102A CN 107046698 A CN107046698 A CN 107046698A
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- 238000000034 method Methods 0.000 claims abstract description 31
- 230000008054 signal transmission Effects 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 75
- 238000001514 detection method Methods 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 abstract description 6
- 230000002045 lasting effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 14
- 238000004590 computer program Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
-
- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Embodiment of the disclosure provides a kind of method and apparatus for being used for the channel reservation for authorizing auxiliary access.This method includes being directed to the first user device configuration channel resource without sounding reference signal transmission enhancement.This method also transmits particular reserved signal using the channel resource including the first user equipment, with lasting busy channel, and does not influence the sounding reference signal transmission enhancement that is carried out by other users equipment.Embodiment of the disclosure realizes the channel reservation mechanism for LAA, the user equipment without sounding reference signal transmission enhancement can not influenceed to keep in the case of the sounding reference signal transmission enhancement of other users equipment in cell for the occupancy of channel, so as to improve the utilization rate of unauthorized channels and reduce the expense of transmitting procedure.
Description
Technical field
Embodiment of the disclosure relates in general to wireless communication field, and in particular to one kind is used to be directed to
The method and apparatus for authorizing the channel reservation of auxiliary access (LAA).
Background technology
In the version 14 (R14) of Long Term Evolution (LTE), have been approved by being used to provide
The job that up-link (UL) for the LAA operations in unauthorized frequency range is supported,
LAA is a kind of skill that LTE communication is carried out using the unauthorized frequency range used such as Wi-Fi
Art.In the LAA research project stages, LAA been proposed in before uplink user survey need into
The operation of row listem-before-talk (LBT).
In LTE, the detection reference signal (SRS) on UL is supported to transmit to safeguard
UL timings and UL and downlink (DL) scheduling for being easy to base station.Therefore, for identical
Reason, in the unauthorized frequency range transmitted for UL support SRS transmission be it is desirable that.
LTE version 12 (R12) allows from the SRS transmission from the point of view of user equipment (UE) angle
Two kinds of situations, i.e., with Physical Uplink Shared Channel (PUSCH) transmission identical subframe in
SRS is transmitted, or SRS is individually transmitted in the subframe without PUSCH transmission.
In current LTE system, when a UE carries out SRS transmission, the SRS transmission
May be overlapping with the PUSCH transmitted by another UE in frequency.Therefore, in cell
All UE not in last OFDM of the specific SRS of cell
(OFDM) PUSCH transmission is carried out in symbol.However, in LAA, if in UE
The transmission broken in last OFDM symbol, it may lose channel occupancy, for example,
Channel resource may be taken by such as Wi-Fi other networks.In addition, when UE is following
Subframe in restart PUSCH transmission before, whether the UE needs detection channel idle,
This causes the utilization rate of unlicensed frequency band to reduce by extra expense is produced.
Therefore, this area need it is a kind of for LAA channel reservation mechanism to solve above-mentioned ask
Topic.
The content of the invention
Embodiment of the disclosure aims to provide a kind of method for being used to be directed to LAA channel reservation
And equipment.
Letter for authorizing auxiliary access is used for there is provided a kind of according to an aspect of this disclosure
The reserved method in road.Methods described includes being directed to be used without the first of sounding reference signal transmission enhancement
Family device configuration channel resource.This method also includes first user equipment and utilizes the channel
Resource transmits particular reserved signal, with lasting busy channel, and does not influence by other users
The sounding reference signal transmission enhancement that equipment is carried out.
In certain embodiments, for the first user equipment without sounding reference signal transmission enhancement
Configurating channel resource is included one or more of detection reference signal symbol Physical Resource Block
Configuration is as the channel resource, wherein one or more of Physical Resource Block are not used by other
Family equipment is used for sounding reference signal transmission enhancement.
In certain embodiments, one or more of Physical Resource Block include detection reference signal
Two edge Physical Resource Block in symbol.
In certain embodiments, for the first user equipment without sounding reference signal transmission enhancement
Configurating channel resource is included multiple resource elements in the bandwidth for sounding reference signal transmission enhancement
Element configuration is used as the channel resource.
In certain embodiments, the multiple resource element is interleaved on frequency domain.
In certain embodiments, for the first user equipment without sounding reference signal transmission enhancement
Configurating channel resource is included one or more sequences in the sequence for detection reference signal
Configuration is used as the channel resource.
In certain embodiments, first user equipment using the channel resource to transmit
Stating particular reserved signal includes sharing when in the presence of the physical uplink immediately following detection reference signal symbol
During transmission, the particular reserved signal is transmitted.
In certain embodiments, the power of the particular reserved signal and identical subframe or adjacent
The power of Uplink Shared Channel transmission in subframe is roughly the same.
Letter for authorizing auxiliary access is used for there is provided a kind of according to another aspect of the present disclosure
The reserved user equipment in road.The user equipment includes device for allocating resources, for for not entering
The user device configuration channel resource of row sounding reference signal transmission enhancement.The user equipment is also
Including signal transmitting apparatus, for transmitting particular reserved signal using the channel resource, with
Continue busy channel, and do not influence the sounding reference signal transmission enhancement that is carried out by other users equipment.
In certain embodiments, the device for allocating resources is used in detection reference signal symbol
One or more Physical Resource Block configure as the channel resource, wherein one or many
Individual Physical Resource Block is not used for sounding reference signal transmission enhancement by other users equipment.
In certain embodiments, one or more of Physical Resource Block include detection reference signal
Two edge Physical Resource Block in symbol.
In certain embodiments, the device for allocating resources is used to that detection reference signal biography will to be used for
Multiple resource elements configuration in defeated bandwidth is used as the channel resource.
In certain embodiments, the multiple resource element is interleaved on frequency domain.
In certain embodiments, the device for allocating resources is used for for detection reference signal
One or more sequences configuration in sequence is used as the channel resource.
In certain embodiments, the signal transmitting apparatus is for when in the presence of immediately following detection reference letter
During the Physical Uplink Shared Channel transmission of number symbol, the particular reserved signal is transmitted.
In certain embodiments, the power of the particular reserved signal and identical subframe or adjacent
The power of Uplink Shared Channel transmission in subframe is roughly the same.
The channel reservation mechanism for LAA in accordance with an embodiment of the present disclosure, can be in not shadow
Ring UE pairs kept in cell in the case of other UE SRS transmission without SRS transmission
In the occupancy of channel, so as to improve the utilization rate of unauthorized channels and reduce opening for transmitting procedure
Pin.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the disclosure, constitutes the disclosure
A part, the schematic description and description of the disclosure is used to explain the disclosure, does not constitute
Improper restriction of this disclosure.In the accompanying drawings:
Fig. 1 illustrates the schematic diagram of the SRS transmission in LAA；
Fig. 2 illustrates the schematic diagram of the subframe structure of the up-link with LBT；
Fig. 3 illustrates the channel reservation for being used to be directed to LAA in accordance with an embodiment of the present disclosure
The flow chart of method 300；
Fig. 4 illustrates the schematic diagram of the channel reservation of one embodiment according to the disclosure；
Fig. 5 illustrates the schematic diagram of the channel reservation according to another embodiment of the present disclosure；
Fig. 6 illustrates the schematic diagram of the channel reservation of the another embodiment according to the disclosure；And
Fig. 7 illustrates the channel reservation for being used to be directed to LAA in accordance with an embodiment of the present disclosure
The block diagram of user equipment 700.
In various figures, identical or corresponding label represents identical or corresponding part.
Embodiment
Hereinafter, each exemplary embodiment of the disclosure will be described in detail with reference to the attached drawings.Should
Work as attention, these accompanying drawings and description be related to be merely possible to exemplary embodiment.It should refer to
Go out, according to subsequent description, it is easy to dream up the replacement of structures and methods disclosed herein
Embodiment, and these can be used in the case where not departing from the claimed principle of the disclosure
Alternate embodiment.
It should be appreciated that providing these exemplary embodiments to make those skilled in the art
It better understood when and then realize the disclosure, and not limit the model of the disclosure in any way
Enclose.
Term " comprising " as used herein, "comprising" and similar terms are understood to open
The term of property, i.e., " including/including but not limited to ".Term "based" is " being based at least partially on ".
Term " one embodiment " expression " at least one embodiment "；Expression is " extremely for term " another embodiment "
A few further embodiment ".The related definition of other terms is provided in will be described below.
Hereinafter, being directed in accordance with an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings
LAA channel reservation mechanism.
Fig. 1 illustrates the schematic diagram of the SRS transmission in LAA, and it illustrates positioned at identical small
Two UE, i.e. UE1 and UE2 in area.Wherein, UE1 be configured for SRS transmission and
UE2 is without SRS transmission.As shown in figure 1, last OFDM of UE1 in the first subframe
SRS transmission is carried out in symbol, and UE2 scheduled PUSCH biographies in two subframes
It is defeated.However, in order to protect the SRS transmission carried out by UE1, UE2 has in the first son
Stop PUSCH transmission in last OFDM symbol of frame.This be cell intermediate node or
Node from other networks (for example, Wi-Fi) provides access chance.In the first subframe
Last OFDM symbol in, when UE2 does not transmit any signal, share identical letter
The adjacent node in road may detect that channel idle and therefore take the channel to start transmission.
If UE2 proceeds PUSCH in the case of without Channel Detection in the second subframe
Transmission, the transmission may interfere with the transmission from other nodes.Therefore, opened in the second subframe
Before beginning PUSCH transmission, UE2 needs to detect channel access availability.This additional letter
Road detection will reduce the utilization rate of LAA unauthorized channel, because the additional Channel Detection
It may need to be done before maximum channel holding time is reached.In addition, because UE1 exists
SRS is transmitted in last OFDM symbol of first subframe, UE2 may detect that channel
It is busy, even if there be no the transmission of any other adjacent node.If UE2 is for any original
Because detecting channel busy, then the UL for shifting to an earlier date 4 milliseconds (ms) transmission by base station is authorized will be by
Waste.
In addition, also there is another scene, i.e. LBT for transmission SRS purpose small
The eve of the specific SRS symbols in area is done and (may be followed by PUSCH transmission), or
Person is transmitted only in the case where SRS is not transmitted in the specific SRS symbols of cell
PUSCH。
For example, Fig. 2 illustrates such example, it illustrates the up-link with LBT
Subframe structure.In the illustrated example shown in fig. 2, for carrying out PUSCH biographies in SRS
Defeated all UE, no matter whether the UE is configured as entering in the specific SRS symbols of cell
Row SRS transmission, its need alignment LBT operate cause LBT operation occur SRS symbols with
Before.Otherwise, for the UE without SRS transmission, if the LBT for PUSCH is grasped
Work is performed in SRS symbols, then due to the SRS transmission from other UE, the LBT
Operation will likely fail.In this case, for these without the UE of SRS transmission
Speech, it is essential that can persistently accounted for during SRS symbols after LBT is operated successfully
With channel, to enable PUSCH to be transmitted after.
Embodiment of the disclosure can provide a kind of channel reservation mechanism for LAA, to solve
Certainly as shown in Fig. 1 and/or Fig. 2 the problem of.
Fig. 3 illustrates the channel reservation for being used to be directed to LAA in accordance with an embodiment of the present disclosure
The flow chart of method 300.For example, method 300 can be by the UE (examples without SRS transmission
Such as, the UE2 that is shown in Fig. 1) perform.As shown in figure 3, method 300 can include step
Rapid S301 to S302.
In step S301, for the first user device configuration without sounding reference signal transmission enhancement
Channel resource.For example, the first user equipment can be the UE2 shown in Fig. 1, it is configured
For without SRS transmission.In step S301, to the first user without SRS transmission
Device configuration channel resource so that its can in the specific SRS of cell, for
Particular reserved signal is transmitted in the OFDM symbol of SRS transmission with constantly busy channel.Institute
The channel resource of configuration can be predefined in specification or via high-level signaling to UE signals
Transmission.
In accordance with an embodiment of the present disclosure, for example, can be by one in detection reference signal symbol
Or multiple Physical Resource Block (PRB) configurations are provided as the channel for transmitting particular reserved signal
Source, wherein one or more Physical Resource Block are not arranged to the other users in cell
Equipment (for example, the UE1 shown in Fig. 1) carries out SRS transmission.For example, Fig. 4 is illustrated
Such example, it shows the schematic diagram of the channel reservation of one embodiment according to the disclosure.
In current LTE, under any system bandwidth and for any SRS configurations,
SRS transmission is not occurred in two edge PRB.For example, as shown in figure 4, working as system
During with a width of 10MHz (50 PRB, i.e., the 0-49 PRB), maximum SRS bandwidth
For 48 PRB (i.e. the 1-48 PRB).It therefore, it can two in SRS symbols
Edge PRB (that is, the 0th and 49 PRB) is configured to by without SRS transmission
UE (for example, the UE2 shown in Fig. 1) transmits particular reserved signal.This will not affect that
SRS transmission from other users.As will be described further, when support in LAA
When Physical Uplink Control Channel (PUCCH) is transmitted, the particular reserved with higher transmission power
Signal can produce minor impact to the PUCCH of other UE in cell.
In accordance with an embodiment of the present disclosure, for example, it is also possible to by the bandwidth for SRS transmission
Multiple resource element (RE) configurations are used as the channel resource for transmitting particular reserved signal.Example
Such as, Fig. 5 illustrates such example, and it shows the channel according to another embodiment of the present disclosure
Reserved schematic diagram.
As shown in figure 5, system bandwidth is 10MHz (50 PRB, i.e., the 0-49 PRB),
SRS is with a width of 48 PRB (i.e. the 1-48 PRB).Can be by used SRS bands
Some RE in width are configured to by the UE without SRS transmission (for example, showing in Fig. 1
The UE2 gone out) transmission particular reserved signal.These RE are interleaved on frequency domain, to meet UL
In " 80% nominal bandwidth occupancy " European regulatory requirement.It should be noted that due to these
Reserved RE can not be used for SRS so that SRS sequences shorten.In the SRS configured
In bandwidth, SRS will be mapped to every a subcarrier (that is, comb like fashion).In addition,
Because SRS bandwidth is usually the integral multiple of 4 resource blocks, therefore SRS sequences are usually 24
Individual RE integral multiple.In order to reduce the influence to specification as far as possible, the SRS sequences shortened can
To still meet such requirement (that is, 24 RE integral multiple).For example, remaining in advance
The quantity for transmitting the RE of particular reserved signal can be at least 24, or the integer of 24
Times.For example, in the example depicted in fig. 5, the number of the RE for transmitting particular reserved signal
Amount can be set to 2 RE in each PRB.It should be appreciated that specific pre- for transmitting
The RE of the varying number in each PRB can also be set to by staying the RE of signal quantity.
In accordance with an embodiment of the present disclosure, one or more SRS resources can be configured to by not
Carry out the UE transmission particular reserved signals of SRS transmission.Reserved SRS resource can be rule
It is predefined or transmitted to UE signals via high-level signaling in model.Reserved SRS resource
The combination of SRS sequences and frequency resource is may refer to, and the reserved resource can be with maintenance
It is chosen with the mode of the orthogonality of the SRS transmission from other UE.For example, reserved
SRS resource can be (for example, the even number in the SRS bandwidth configured in specific frequency resources
Subcarrier, because SRS is only mapped to every a subcarrier) on the SRS sequences transmitted.
Fig. 6 illustrates such example, and it shows the channel reservation of the another embodiment according to the disclosure
Schematic diagram.
As shown in fig. 6, system bandwidth is 10MHz (50 PRB, i.e., the 0-49 PRB),
SRS is with a width of 48 PRB (i.e. the 1-48 PRB).As reference, below to be current
The definition of the specific SRS configurations of UE in LTE.
Reserved SRS resource can be the SRS sequences generated by predefined cyclic shifter.Example
Such as, cycleShift=cs7 sequence can be configured to by the UE without SRS transmission
To transmit particular reserved signal.In addition, reserved SRS resource can be odd/even RE,
Because SRS is only mapped to every a subcarrier in the SRS bandwidth configured.For example,
Can by transmissionComb=1 be configured to by the UE without SRS transmission Lai
Transmit particular reserved signal.
Fig. 3 is returned to, method 300 is carried out to step S302.In step S302, the first user
Equipment utilization channel resource transmits particular reserved signal, with lasting busy channel, and not shadow
Ring the sounding reference signal transmission enhancement carried out by other users equipment.For example, the other users equipment
Can be the UE1 shown in Fig. 1, it is configured for SRS transmission.
In accordance with an embodiment of the present disclosure, it is not configured as carrying out in the specific SRS of cell
The UE (for example, the UE2 shown in the first user equipment, i.e. Fig. 1) of SRS transmission is not required to
The particular reserved signal is transmitted always.Only when in the presence of the PUSCH transmission immediately following SRS symbols
When, the UE just transmits the particular reserved signal with lasting busy channel.
In accordance with an embodiment of the present disclosure, the power of the particular reserved signal transmitted can be by UE
Embodiment determine.For example, the power of the particular reserved signal can with it is identical or adjacent
The power of PUSCH transmission in subframe is roughly the same.Alternatively, it is assumed that the UE transmits SRS,
Then the power of the particular reserved signal can be roughly the same with the power of SRS transmission.Work as LAA
During middle support PUCCH transmission, it can cause particular reserved signal that there is higher transmission power,
To produce minor impact to the PUCCH of other UE in cell.
It should be appreciated that in above-mentioned all embodiments, base station can perform list frame scheduling or
For PUSCH many subframe schedulings.In the case of many subframe schedulings, each UL is authorized
UE will be allowed to transmit PUSCH in multiple subframes.In addition, it will also be understood that current in LTE
In, the OFDM symbol for SRS transmission is usually last OFDM symbols in subframe
Number.If due to other consideration SRS be designed in the subframe for LAA it is any its
It is transmitted in his OFDM symbol, embodiment of the disclosure will be applicable.
Fig. 7 illustrates the channel reservation for being used to be directed to LAA in accordance with an embodiment of the present disclosure
The block diagram of user equipment 700.For example, user equipment 700 may be implemented as without SRS
The UE (for example, the UE2 shown in Fig. 1) of transmission is used as a part of the UE.
As shown in fig. 7, user equipment 700 include device for allocating resources 701, for for without
The configurating channel resource of user equipment 700 of sounding reference signal transmission enhancement.User equipment 700 is also wrapped
Signal transmitting apparatus 702 is included, for transmitting particular reserved signal using the channel resource, with
Continue busy channel, and do not influence the sounding reference signal transmission enhancement that is carried out by other users equipment.
For example, the other users equipment can be in same cells with SRS transmission UE (for example,
The UE1 shown in Fig. 1) or the UE a part.
In accordance with an embodiment of the present disclosure, device for allocating resources 701 is used to accord with detection reference signal
Number one or more of Physical Resource Block configuration as be used for transmit the particular reserved signal
Channel resource, wherein one or more Physical Resource Block are not used for SRS by other users equipment
Transmission.For example, one or more Physical Resource Block can include two sides in SRS symbols
Edge PRB.
In accordance with an embodiment of the present disclosure, device for allocating resources 701 is used for for SRS transmission
Multiple RE configurations in bandwidth are used as the channel resource for transmitting the particular reserved signal.Example
Such as, the plurality of RE can be at least 24 RE, and the plurality of RE is handed on frequency domain
Knit.
In accordance with an embodiment of the present disclosure, device for allocating resources 701 is used for one in SRS sequences
Plant or the configuration of a variety of sequences is used as the channel resource for being used for transmitting the particular reserved signal.
In accordance with an embodiment of the present disclosure, signal transmitting apparatus 702 is used for when in the presence of immediately following SRS symbols
Number PUSCH transmission when, transmit the particular reserved signal.
In accordance with an embodiment of the present disclosure, the power of the particular reserved signal and identical subframe or phase
The power of PUSCH transmission in adjacent subframe is roughly the same.
In accordance with an embodiment of the present disclosure, it is assumed that user equipment 700 carries out SRS transmission, then the spy
The power for determining preserved signal is roughly the same with the power of SRS transmission.
For purposes of clarity, some of equipment 700 are not shown in the figure 7 can screening device.
It will be appreciated, however, that being equally applicable to equipment above with reference to each feature described by Fig. 3-6
700.Moreover, each device in equipment 700 can be hardware module or software
Module.For example, in certain embodiments, equipment 700 can be with some or all of utilization software
And/or firmware is realized, for example, it is implemented as comprising computer journey on a computer-readable medium
Sequence product.Alternatively or additionally, equipment 700 can be with some or all of hardware that is based on come real
It is existing, for example it is implemented as integrated circuit (IC), application specific integrated circuit (ASIC), on-chip system
(SOC), field programmable gate array (FPGA) etc..The scope of the present disclosure is in this regard not
It is restricted.
In summary, it is used in accordance with an embodiment of the present disclosure there is provided a kind of for LAA's
The method and apparatus of channel reservation.The channel that embodiment of the disclosure is realized for LAA is pre-
Mechanism is stayed, can not influence keeping to enter in the case of other UE SRS transmission in cell
The UE of row SRS transmission for channel occupancy, so as to improve the utilization rate of unauthorized channels simultaneously
And the expense of reduction transmitting procedure.
In general, the various example embodiments of the present invention can be in hardware or special circuit, soft
Implement in part, logic, or its any combinations.Some aspects can be implemented within hardware, and its
He aspect can by controller, microprocessor or other computing devices firmware or
Implement in software.When each side of embodiments of the invention is illustrated or described as block diagram, flow
Figure or when being represented using other some figures, it will be understood that square frame described herein, device, system,
Techniques or methods can be as nonrestrictive example in hardware, software, firmware, special circuit
Or implement in logic, common hardware or controller or other computing devices, or its some combination.
Moreover, each frame in flow chart can be counted as method and step, and/or computer program
The operation of the operation generation of code, and/or it is interpreted as performing the logic of multiple couplings of correlation function
Circuit element.For example, embodiments of the invention include computer program product, the computer journey
Sequence product includes visibly realizing computer program on a machine-readable medium, the computer journey
Sequence includes the program code for being configured as realizing method described above.
In disclosed context, machine readable media can include or store to be used for or relevant
In any tangible medium of the program of instruction execution system, device or equipment.Machine readable media
Can be machine-readable signal medium or machinable medium.Machine readable media can be wrapped
Include but be not limited to electronics, magnetic, optical, electromagnetism, infrared or semiconductor system,
Device or equipment, or its any appropriate combination.The more detailed example of machinable medium
Including the electrical connection with one or more wire, portable computer diskette, hard disk, with
Machine memory access device (RAM), read-only storage (ROM), erasable programmable is read-only deposits
Reservoir (EPROM or flash memory), light storage device, magnetic storage apparatus, or its is any appropriate
Combination.
The computer program code of method for realizing the present invention can use one or more volumes
Cheng Yuyan writes.These computer program codes can be supplied to all-purpose computer, dedicated computing
The processor of machine or other programmable data processing units so that program code is by computer
Or when the execution of other programmable data processing units, cause in flow chart and/or block diagram
Defined function/operation is carried out.Program code completely on computers, can calculated partly
On machine, as independent software kit, part on computers and part on the remote computer or
Performed completely on remote computer or server.
Although in addition, operation is depicted with particular order, this simultaneously should not be construed and require this
Generic operation is completed with the particular order that shows or with sequential order, or performs the behaviour of all diagrams
Make to obtain expected result.In some cases, multitask or parallel processing can be beneficial.
Similarly, although discussed above contain some specific implementation details, this should not be explained
To limit the scope of any invention or claim, and it should be interpreted that to specific invention can be directed to
Specific embodiment description.In this specification described in the context of separated embodiment
Some features can also combined implementation in single embodiment.On the contrary, in single embodiment
Various features described in context can also be discretely in multiple embodiments or any appropriate
Sub-portfolio in implement.
Various modifications, change for foregoing example embodiment of the invention will be looked into together with accompanying drawing
Obvious are become to those skilled in the technology concerned when seeing described above.Any and all modification
The example embodiment scope of unrestricted and the present invention will be still fallen within.In addition, aforementioned specification and
There is the benefit inspired in accompanying drawing, be related to the technology people of the technical field of embodiments of the invention
Member is it will be appreciated that the other embodiment of the invention illustrated herein.
It will be understood that, the bright embodiment of this law is not limited to disclosed specific embodiment, and changes
It should be all contained in other embodiment in scope of the appended claims.Although being used here spy
Fixed term, but they are only used in the sense that general and description, and be not limited to
Purpose.
Claims (16)
1. a kind of method for being used for the channel reservation for authorizing auxiliary access, including：
For the first user device configuration channel resource without sounding reference signal transmission enhancement；With
And
First user equipment transmits particular reserved signal using the channel resource, to hold
Continuous busy channel, and the sounding reference signal transmission enhancement that is carried out by other users equipment is not influenceed.
2. according to the method described in claim 1, wherein for being passed without detection reference signal
The first defeated user device configuration channel resource includes：
Using the configuration of one or more of detection reference signal symbol Physical Resource Block described in
Channel resource, wherein one or more of Physical Resource Block are not used to visit by other users equipment
Survey reference signal transmission.
3. method according to claim 2, wherein one or more of Physical Resource Block
Including two edge Physical Resource Block in detection reference signal symbol.
4. according to the method described in claim 1, wherein for being passed without detection reference signal
The first defeated user device configuration channel resource includes：
It regard multiple resource elements configuration in the bandwidth for sounding reference signal transmission enhancement as institute
State channel resource.
5. method according to claim 4, wherein the multiple resource element is on frequency domain
It is interleaved.
6. according to the method described in claim 1, wherein for being passed without detection reference signal
The first defeated user device configuration channel resource includes：
Using one or more sequences configuration in the sequence for detection reference signal described in
Channel resource.
7. according to the method described in claim 1, wherein first user equipment is described in
Channel resource includes to transmit particular reserved signal：
When there is the Physical Uplink Shared Channel transmission immediately following detection reference signal symbol, visiting
Survey in reference signal symbol and transmit the particular reserved signal.
8. according to the method described in claim 1, wherein the power of the particular reserved signal with
The power of Uplink Shared Channel transmission in identical subframe or adjacent sub-frame is roughly the same.
9. a kind of user equipment for being used for the channel reservation for authorizing auxiliary access, including：
Device for allocating resources, for for being set without the user of sounding reference signal transmission enhancement
Standby configurating channel resource；And
Signal transmitting apparatus, for transmitting particular reserved signal using the channel resource, with
Continue busy channel, and do not influence the sounding reference signal transmission enhancement that is carried out by other users equipment.
10. user equipment according to claim 9, wherein the device for allocating resources is also
For：
Using the configuration of one or more of detection reference signal symbol Physical Resource Block described in
Channel resource, wherein one or more of Physical Resource Block are not used to visit by other users equipment
Survey reference signal transmission.
11. user equipment according to claim 10, wherein one or more of physics
Resource block includes two edge Physical Resource Block in detection reference signal symbol.
12. user equipment according to claim 9, wherein the device for allocating resources is also
For：
It regard multiple resource elements configuration in the bandwidth for sounding reference signal transmission enhancement as institute
State channel resource.
13. user equipment according to claim 12, wherein the multiple resource element exists
It is interleaved on frequency domain.
14. user equipment according to claim 9, wherein the device for allocating resources is also
For：
Using one or more sequences configuration in the sequence for detection reference signal described in
Channel resource.
15. user equipment according to claim 9, wherein the signal transmitting apparatus is also
For：
When there is the Physical Uplink Shared Channel transmission immediately following detection reference signal symbol, transmission
The particular reserved signal.
16. user equipment according to claim 10, wherein the particular reserved signal
The power substantially phase that power is transmitted with the Uplink Shared Channel in identical subframe or adjacent sub-frame
Together.
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|---|---|---|---|
| CN201610084102.5A CN107046698A (en) | 2016-02-05 | 2016-02-05 | Channel reservation for authorizing auxiliary access |
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| CN201610084102.5A CN107046698A (en) | 2016-02-05 | 2016-02-05 | Channel reservation for authorizing auxiliary access |
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