CN105634847B - A kind of free time carrier detecting method and device - Google Patents
A kind of free time carrier detecting method and device Download PDFInfo
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- CN105634847B CN105634847B CN201410613036.7A CN201410613036A CN105634847B CN 105634847 B CN105634847 B CN 105634847B CN 201410613036 A CN201410613036 A CN 201410613036A CN 105634847 B CN105634847 B CN 105634847B
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Abstract
The present invention relates to field of communication technology more particularly to a kind of idle carrier detecting methods and device, accurately detect utilizable idle carrier wave to realize.A kind of idle carrier detecting method provided in an embodiment of the present invention, comprising: network side equipment carries out signal energy detection to target carrier；The network side equipment detects reference signal in the target carrier after the signal energy for detecting the target carrier is lower than setting energy threshold；If the network side equipment does not detect reference signal in the target carrier, it is determined that the target carrier is idle carrier wave.The embodiment of the present invention detects idle carrier wave in such a way that signal energy measurement combines reference signal measurement, can accurately detect idle carrier wave.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of idle carrier detecting methods and device.
Background technique
Currently, data traffic demand is increasing, and authorized spectrum band is limited, how to realize that low-cost data shunting is mesh
Preceding urgent problem.Currently, operator will using Wireless LAN (Wireless Local Area Networks,
It WLAN) is mobile data flow shunt.But since WLAN is access mechanism competition-based, it is difficult to ensure that its service quality
(Quality of Service, QoS), causes user experience poor.
Unauthorized frequency range be for all operation commercial cities it is open, different operators right having the same is unauthorized
Affix one's name to long term evolution (Long Term Evolution, LTE) system in frequency range top.Using unauthorized frequency range assist authorized spectrum band into
Row LTE is shunted, it is ensured that QoS, to promote user experience.But since each operation commercial city has identical right to use
Each carrier wave in unauthorized frequency range, that is, the network side equipment of different operators is specially user equipment (User
Equipment, UE) which carrier wave in the unauthorized frequency range of distribution is all random, if without interference Hedging mechanism appropriate,
Different operators will generate serious signal interference using the identical carrier wave in unauthorized frequency range in the same area.
In order to avoid signal interference, network side equipment, which can choose, to be currently in the carrier wave of idle state and distributes to user and set
Standby (User Equipment, UE) carries out data transmission.But the carrier wave being in idle condition specifically how is selected, not yet
Effective solution scheme.
Summary of the invention
The embodiment of the present invention provides a kind of idle carrier detecting method and device, to realize that accurately detect can be with
The idle carrier wave utilized.
A kind of idle carrier detecting method provided in an embodiment of the present invention, comprising:
Network side equipment carries out signal energy detection to target carrier；
The network side equipment is after the signal energy for detecting the target carrier is lower than setting energy threshold, described
Reference signal is detected in target carrier；
If the network side equipment does not detect reference signal in the target carrier, it is determined that the target carrier is
Idle carrier wave.
Optionally, after the network side equipment determines the target carrier for idle carrier wave, further includes:
First carrier set is added in the target carrier by the network side equipment；
Network side equipment selection target carrier wave from the first carrier set is distributed to user equipment (UE) and is counted
According to transmission.
Optionally, network side equipment selection target carrier wave from first carrier set distributes to UE and carries out data biography
It is defeated, comprising:
The carrier measurements that the network side equipment is reported according to the UE select mesh from the first carrier set
Mark carrier wave is distributed to the UE and is carried out data transmission.
Optionally, after the reference signal that the network side equipment detection is sent in the target carrier, further includes:
If the network side equipment detects reference signal in the target carrier, the target carrier is added the
Nd carrier set；
When the network side equipment is determined there is currently no when idle carrier wave, the selection target from second carrier set
Carrier wave is distributed to user equipment (UE) and is carried out data transmission.
Optionally, when the network side equipment is determined there is currently no when idle carrier wave, from second carrier set
Selection target carrier wave is distributed to the UE and is carried out data transmission, comprising:
The carrier measurements that the network side equipment is reported according to the UE select mesh from second carrier set
Mark carrier wave is distributed to the UE and is carried out data transmission.
Optionally, the method also includes:
The network side equipment according to target carrier carry out signal energy detection, carry out reference signal detection as a result,
And the carrier measurements of reported by user equipment UE, the target carrier carried out data transmission is selected for the UE.
Optionally, the reference signal is discovery reference signal；
The network side equipment detects reference signal in the target carrier, comprising:
The network side equipment detected in the target carrier discovery reference signal in primary synchronization signal PSS and/or
Secondary synchronization signal SSS.
Another embodiment of the present invention provides a kind of idle carrier selecting method, comprising:
User equipment (UE) carries out carrier wave measurement for each target carrier；Each target carrier is located at long term evolution LTE's
Unauthorized frequency range；
The UE reports the carrier measurements for each target carrier to network side equipment；The carrier measurements are used
Target carrier in the network side equipment for UE selection for carrying out data transmission.
A kind of idle carrier sense provision provided in an embodiment of the present invention includes:
First detection module, for carrying out signal energy detection to target carrier；
Second detection module is set for detecting that the signal energy of the target carrier is lower than in the first detection module
After determining energy threshold, the reference signal sent in the target carrier is detected；
Processing module, if not detecting reference signal in the target carrier for second detection module, really
The fixed target carrier is idle carrier wave.
Another embodiment of the present invention provides a kind of idle carrier sense provision include:
Measurement module, for carrying out carrier wave measurement for each target carrier；Each target carrier is located at long term evolution LTE
Unauthorized frequency range；
Reporting module, for reporting the measurement module for the carrier wave measurement knot of each target carrier to network side equipment
Fruit；The carrier measurements are target carrier of the UE selection for carrying out data transmission for the network side equipment.
In the embodiment of the present invention, network side equipment the energy for detecting target carrier lower than setting energy threshold after,
Reference signal is detected in the target carrier, if not detecting reference signal in the target carrier, it is determined that the target carrier is
Idle carrier wave.Obviously, the embodiment of the present invention detects idle carrier wave in such a way that signal energy measurement combines reference signal measurement,
It can accurately detect idle carrier wave.
Detailed description of the invention
Fig. 1 is the idle carrier detecting method flow chart that the embodiment of the present invention one provides；
Fig. 2 is UE corresponding with embodiment one side free time carrier detecting method flow chart provided by Embodiment 2 of the present invention；
Fig. 3 is the idle carrier detecting method flow chart that the embodiment of the present invention three provides；
Fig. 4 is the idle carrier detecting method flow chart that the embodiment of the present invention four provides；
Fig. 5 is the idle carrier sense provision structural schematic diagram that the embodiment of the present invention five provides；
Fig. 6 is the idle carrier sense provision structural schematic diagram that the embodiment of the present invention six provides.
Specific embodiment
Network side equipment can be based on signal energy detected carrier state, at this moment, if the signal of the target carrier detected
Energy is lower than setting energy threshold, then it is assumed that the target carrier is in idle condition.But it is empty to be based purely on signal energy detection
The mode of not busy carrier wave, sensitivity are poor.It is real although being transmitted in some target carriers without data in the deployment of real network
It may be occupied by cell on border, cell transmission of reference signals in the target carrier, to guarantee the target carrier at any time
It can be used for data transmission.In the case where there was only reference signal transmission in target carrier, the target detected is carried
The signal energy of wave is lower, at this moment will accidentally determine it as idle carrier wave, it is clear that determining in this way the result is that unreasonable
's.
Based on this, the embodiment of the invention provides a kind of method of idle carrier wave of more accurate detection, basic thoughts
Be: after the energy for detecting target carrier is lower than setting energy threshold, detection is sent network side equipment in the target carrier
Reference signal, if not detecting reference signal in the target carrier, it is determined that the target carrier is idle carrier wave.Obviously,
The embodiment of the present invention detects idle carrier wave in such a way that signal energy measurement combines reference signal measurement, can accurately detect
Idle carrier wave out.
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
Alleged target carrier refers mainly to the carrier wave of the unauthorized frequency range positioned at long term evolution LTE in the embodiment of the present invention, when
So, the embodiment of the present invention is also applied for carrying out idle state detection to the carrier wave of other authorized spectrum bands.
As shown in Figure 1, the idle carrier detecting method flow chart provided for the embodiment of the present invention one, comprising the following steps:
S101: network side equipment carries out signal energy detection to target carrier.
Network side equipment in the embodiment of the present invention specifically can be eNB.
In the step, network side equipment can need carry out data transmission between UE (for example to receive UE's determining
Access request) after, signal energy detection is carried out to target carrier, to select the target carrier for capableing of bearer data transmission.
Specifically, network side equipment can be in the first detection window T0 (duration for executing primary energy detection) to a mesh of selection
It marks carrier wave and carries out energy measuring.
In specific implementation, the target carrier that unauthorized frequency range can be randomly selected carries out signal energy detection, can also be with
The selection in carrier list (content in relation to carrier list can be discussed in detail in subsequent embodiment).When being selected from carrier list
When target carrier, the target carrier for being determined as idle carrier wave when idle carrier wave detection is carried out before preferential selection.
In view of the limited amount of target carrier, network side equipment can continuously detect most N1 to target carrier, and (N1 is big
It is 1) secondary in being equal to, if the result of this N1 times detection all shows that the signal energy of the target carrier is optionally greater than setting energy threshold,
Then think that the target carrier is busy carrier wave；If detect n-th (1≤n≤N1), the signal of the target carrier is detected
Energy all shows the signal energy of the target carrier lower than setting lower than setting energy threshold or n-th~N1 times testing result
Energy threshold, then executing S102, (including in the detection process, the signal energy value of target carrier is from optionally greater than setting energy cut-off
Value is changed to the case where lower than setting energy threshold).
S102: the network side equipment the signal energy for detecting the target carrier lower than setting energy threshold after,
Reference signal is detected in the target carrier.
After S101, network side equipment detects target carrier of the signal energy lower than setting energy threshold, then is believing
Number energy detects reference signal in the target carrier lower than setting energy threshold.The reference signal specifically can be discovery with reference to letter
Number, specifically, can detecte discovery reference signal in primary synchronization signal (Primary Synchronization Signal,
) and/or secondary synchronization signal (Secondary Synchronization Signal, SSS) PSS.
S103: if the network side equipment does not detect reference signal in the target carrier, it is determined that the target
Carrier wave is idle carrier wave.
In specific implementation, network side equipment is in the second detection window T1(duration of reference signal detection is executed, it should
T1More than or equal to the maximum sending cycle of reference signal) in, setting energy threshold is lower than to the signal energy that S101 is detected
Target carrier carries out reference signal detection.Network side equipment can continuously detect most N2 to the target carrier, and (N2 is more than or equal to
1) secondary, if this N2 times testing result all shows the transmission in the target carrier there are reference signal, then it is assumed that the target carries
Wave is busy carrier wave；If detect the m times (1≤m≤N2), detect that there is no reference signals in the target carrier
The testing result of transmission or m~N2 time all show that there is no the transmission of reference signal in the target carrier, then it is assumed that the target
Carrier wave is idle carrier wave (the case where including in the detection process, target carrier is changed to idle carrier wave from busy carrier wave).This
Reference signal in inventive embodiments can be (but are not limited to) discovery reference signal, and discovery reference signal here refers to network
The signal that oneself is found for other equipment (such as UE) that side apparatus is sent.
Optionally, after S103, further includes:
First carrier set is added in the target carrier by the network side equipment；
Network side equipment selection target carrier wave from the first carrier set distributes to the UE and carries out data biography
It is defeated.
In the specific implementation process, network side equipment can be in the signal energy for detecting a target carrier lower than setting
After energy threshold, that is, the transmission that whether there is reference signal in the target carrier is detected, once it is determined that not having in the target carrier
The transmission of reference signal determines that the target carrier is idle carrier wave, and distributes the transfer resource on the free time carrier wave for UE.?
That is, the reference letter that network side equipment can successively detect the signal energy of each target carrier and send in the target carrier
Number, once confirming an idle carrier wave, as UE distributes the transfer resource on the free time carrier wave, and does not continue to detect next
A target carrier.Network side equipment can also detect multiple idle carrier waves first, then selection is suitable in this multiple idle carrier wave
In the optimal idle carrier wave carried out data transmission, such as the idle carrier wave for selecting the signal energy detected minimum.Specifically,
Network side equipment safeguards a carrier list, for storing different types of carrier set, for example, carrier set may include three
Class is first carrier set, the second carrier set and third carrier set respectively, wherein first carrier set is for storing inspection
The each idle carrier wave measured, the second carrier set exist for storing each signal energy lower than setting energy threshold
The target carrier of reference signal transmission, third carrier set are used to store each signal energy optionally greater than setting energy threshold
Target carrier.After network side equipment completes target carrier detection, the target carrier of UE is distributed in selection from first carrier set,
And when selecting the target carrier for carrying out signal energy detection, can also preferentially it be selected from the first carrier set of maintenance
It selects, if still without detecting idle carrier wave, then detecting the second carrier wave after having detected the target carrier in first carrier set
Target carrier in set, if after having detected the target carrier in the second carrier set, still without detecting idle carrier wave,
The target carrier in third carrier set is detected again.
It should be noted that
Optionally, after S103, further includes:
If the network side equipment detects reference signal in the target carrier, the target carrier is added the
Nd carrier set；
When the network side equipment is determined there is currently no when idle carrier wave, the selection target from second carrier set
Carrier wave is distributed to the UE and is carried out data transmission.
In the specific implementation process, in the case where heavier loads, it is possible to can not detect idle carrier wave, then net at this time
Network side apparatus can distribute the transfer resource in the target carrier in second carrier set for UE.
Optionally, the method also includes:
The network side equipment according to target carrier carry out signal energy detection, carry out reference signal detection as a result,
And the carrier measurements of reported by user equipment UE, the target carrier carried out data transmission is selected for the UE.
In the specific implementation process, it in order to further increase the accuracy that carrier wave detects, can be carried out using UE auxiliary empty
At this moment not busy carrier wave detection can carry out the knot of signal energy detection, reference signal detection in conjunction with network side equipment to target carrier
The carrier measurements that fruit and UE are reported, for UE selection target carrier wave；The carrier measurements that UE is reported specifically can be
The channel quality of target carrier indicates (Channel Quality Indicator, CQI) information.It specifically, can be according to described
The carrier measurements that UE is reported, selection target carrier wave is distributed to UE and is carried out data transmission from first carrier set.For example, if
There is no some target carrier in first carrier set in the carrier measurements that UE is reported, then illustrate that the target carrier is current
Do not have occupied, can choose the target carrier as idle carrier wave.It, can when idle carrier wave is not present in first carrier set
With the carrier measurements reported according to UE, the target carrier distribution that a channel quality is best is selected from the second carrier set
Carry out data transmission to the UE.In actual implementation, the carrier measurements that are reported according to UE, it is possible to the second carrier wave occur
The channel quality of target carrier in set is better than the case where channel quality of the target carrier in first carrier set, is based on this
The presence of kind situation, can further confirm that whether the channel quality of the target carrier in first carrier set is lower than preset letter
Road quality threshold (lowest channel quality for being adapted for data transmission), if it is not, the first carrier collection can be selected still
Target carrier in conjunction distributes to UE, otherwise, the target carrier in preferable second carrier set of channel quality is selected to distribute to
UE。
As shown in Fig. 2, being UE corresponding with embodiment one side free time carrier detecting method provided by Embodiment 2 of the present invention
Flow chart, specific implementation with implement one repeat place, repeat no more, the embodiment two the following steps are included:
S201:UE carries out carrier wave measurement for each target carrier；Each target carrier is located at the non-of long term evolution LTE and awards
Weigh frequency range.
In the step, UE can measure list according to the target carrier that network side equipment issues, and carry out to each target carrier
Carrier wave measurement, alternatively, target carrier measurement list is scheduled, at this point, UE measures list according to scheduled target carrier, it is right
Each target carrier carries out carrier wave measurement.
S202: the UE reports the carrier measurements for each target carrier to network side equipment；The carrier wave measurement
It as a result is target carrier of the UE selection for carrying out data transmission for the network side equipment.
In the step, the carrier measurements of each target carrier are sent to network side equipment by UE, and network side equipment combines
The carrier measurements and itself carry out idle carrier wave detection as a result, selecting the target for carrying out data transmission for UE
Carrier wave.
Make below by the method that two specific embodiments carry out idle carrier wave detection to the embodiment of the present invention further
Explanation.
As shown in figure 3, the idle carrier detecting method flow chart provided for the embodiment of the present invention three, comprising:
S301: network side equipment carries out signal energy detection to target carrier.
S302: the network side equipment the signal energy for detecting the target carrier lower than setting energy threshold after,
Reference signal is detected in the target carrier.
S303: if the network side equipment does not detect reference signal in the target carrier, it is determined that the target
Carrier wave is idle carrier wave, and first carrier set is added in the target carrier.
S304: if the network side equipment detects reference signal in the target carrier, by the target carrier
The second carrier set is added.
S305: the network side equipment receives the carrier measurements that UE is reported, the carrier wave measurement knot reported according to the UE
Fruit, selection target carrier wave is distributed to the UE and is carried out data transmission from the first carrier set；When the network side equipment is true
When determining that idle carrier wave is not present in first carrier set, according to the carrier measurements that the UE is reported, from second carrier set
Selection target carrier wave is distributed to the UE and is carried out data transmission in conjunction.
As shown in figure 4, the idle carrier detecting method flow chart provided for the embodiment of the present invention four, comprising:
S401: network side equipment is after determination needs for UE allocation of transmission resources, the selection target carrier wave from carrier list
Carry out signal energy detection.
S402: if the network side equipment detects the signal energy of the target carrier optionally greater than setting energy cut-off
The third carrier set of carrier list is then added in the target carrier by value.
S403: if network side equipment detects the signal energy of the target carrier lower than setting energy threshold, in institute
State detection discovery reference signal in target carrier.
S404: if the network side equipment does not detect discovery reference signal in the target carrier, it is determined that described
Target carrier is idle carrier wave, and the target carrier is added to the first carrier set of carrier list.
S405: if the network side equipment detects discovery reference signal in the target carrier, by the target
Second carrier set of carrier wave addition carrier list.
S406: the CQI information that the network side equipment is reported according to UE, according to the priority orders of each carrier set, from
The target carrier for meeting channel quality requirement is selected in each carrier set, and the biography in the target carrier of selection is distributed for the UE
Defeated resource；Wherein, the priority of the highest priority of first carrier set, third carrier set is minimum.
In the step, the CQI information reported according to UE, selection meets what UE needed to transmit first from first carrier set
The idle carrier wave of the channel quality requirement of business datum distributes the transfer resource on the free time carrier wave for the UE.If first carrier
There is no the idle carrier waves for the channel quality requirement for meeting the business datum that UE needs to transmit in set, then again from the second carrier set
It closes, selected in third carrier set.
Based on the same inventive concept, a kind of sky corresponding with idle carrier detecting method is additionally provided in the embodiment of the present invention
Not busy carrier sense provision, since the principle that the device solves the problems, such as is similar to free time of embodiment of the present invention carrier detecting method, because
The implementation of this device may refer to the implementation of method, and overlaps will not be repeated.
As shown in figure 5, the idle carrier sense provision structural schematic diagram provided for the embodiment of the present invention five, comprising:
First detection module 51, for carrying out signal energy detection to target carrier；
Second detection module 52 is set for detecting that the signal energy of the target carrier is lower than in first detection module 51
After determining energy threshold, reference signal is detected in the target carrier；
Processing module 53, if not detecting reference signal in the target carrier for second detection module 52,
Then determine the target carrier for idle carrier wave.
Optionally, the processing module 53 is also used to:
First carrier set is added in the target carrier；Selection target carrier wave is distributed to from the first carrier set
User equipment (UE) carries out data transmission.
Optionally, the processing module 53 is specifically used for:
According to the carrier measurements that the UE is reported, selection target carrier wave distributes to institute from the first carrier set
UE is stated to carry out data transmission.
Optionally, the processing module 53 is also used to:
If detecting reference signal in the target carrier, the second carrier set is added in the target carrier；When
Determine that selection target carrier wave distributes to user equipment (UE) progress from second carrier set there is currently no when idle carrier wave
Data transmission.
Optionally, the processing module 53 is specifically used for:
According to the carrier measurements that the UE is reported, selection target carrier wave distributes to institute from second carrier set
UE is stated to carry out data transmission.
Optionally, the processing module 53 is also used to:
Signal energy detection is carried out to target carrier according to the first detection module 51, shown second detection module carries out
Reference signal detection as a result, and reported by user equipment UE carrier measurements, for the UE selection carry out data transmission
Target carrier.
Optionally, the reference signal is discovery reference signal；
Second detection module 52 is specifically used for: the main synchronization in the target carrier in detection discovery reference signal
Signal PSS and/or secondary synchronization signal SSS.
As shown in fig. 6, for the idle carrier sense provision structural schematic diagram that the embodiment of the present invention six provides, the device packet
It includes:
Measurement module 61, for carrying out carrier wave measurement for each target carrier；Each target carrier is located at long term evolution
The unauthorized frequency range of LTE；
Reporting module 62, for reporting the measurement module for the carrier wave measurement knot of each target carrier to network side equipment
Fruit；The carrier measurements are target carrier of the UE selection for carrying out data transmission for the network side equipment.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of device (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (14)
1. a kind of free time carrier detecting method, which is characterized in that this method comprises:
Network side equipment carries out signal energy detection to target carrier；
The network side equipment is after detecting the signal energy in the target carrier lower than setting energy threshold, in the mesh
Reference signal is detected on mark carrier wave；
If the network side equipment does not detect reference signal in the target carrier, it is determined that the target carrier is the free time
Carrier wave.
2. the method as described in claim 1, which is characterized in that the network side equipment determines that the target carrier carries to be idle
After wave, further includes:
First carrier set is added in the target carrier by the network side equipment；
Network side equipment selection target carrier wave from the first carrier set distributes to user equipment (UE) and carries out data biography
It is defeated.
3. method according to claim 2, which is characterized in that network side equipment selection target from first carrier set
Carrier wave is distributed to UE and is carried out data transmission, comprising:
The carrier measurements that the network side equipment is reported according to the UE, selection target carries from the first carrier set
UE described in wavelength-division dispensing carries out data transmission.
4. the method as described in claim 1, which is characterized in that the network side equipment detection is sent in the target carrier
Reference signal after, further includes:
If the network side equipment detects reference signal in the target carrier, the target carrier is added second and is carried
Wave set；
When the network side equipment is determined there is currently no when idle carrier wave, the selection target carrier wave from second carrier set
User equipment (UE) is distributed to carry out data transmission.
5. method as claimed in claim 4, which is characterized in that when the network side equipment determines that there is currently no idle carrier waves
When, selection target carrier wave is distributed to the UE and is carried out data transmission from second carrier set, comprising:
The carrier measurements that the network side equipment is reported according to the UE, selection target carries from second carrier set
UE described in wavelength-division dispensing carries out data transmission.
6. the method as described in claim 1, which is characterized in that the method also includes:
The network side equipment according to target carrier carry out signal energy detection, carry out reference signal detection as a result, and
The carrier measurements of reported by user equipment UE select the target carrier carried out data transmission for the UE.
7. the method as described in claim 1~6 is any, which is characterized in that the reference signal is discovery reference signal；
The network side equipment detects reference signal in the target carrier, comprising:
The network side equipment detects primary synchronization signal PSS in discovery reference signal and/or auxiliary same in the target carrier
Walk signal SSS.
8. a kind of free time carrier sense provision, which is characterized in that the device includes:
First detection module, for carrying out signal energy detection to target carrier；
Second detection module, for detecting the signal energy of the target carrier lower than setting energy in the first detection module
After measuring threshold value, reference signal is detected in the target carrier；
Processing module, if not detecting reference signal in the target carrier for second detection module, it is determined that institute
Target carrier is stated as idle carrier wave.
9. device as claimed in claim 8, which is characterized in that the processing module is also used to:
First carrier set is added in the target carrier；Selection target carrier wave distributes to user from the first carrier set
Equipment UE carries out data transmission.
10. device as claimed in claim 9, which is characterized in that the processing module is specifically used for:
According to the carrier measurements that the UE is reported, selection target carrier wave distributes to the UE from the first carrier set
Carry out data transmission.
11. device as claimed in claim 8, which is characterized in that the processing module is also used to:
If detecting reference signal in the target carrier, the second carrier set is added in the target carrier；Work as determination
There is currently no when idle carrier wave, selection target carrier wave distributes to user equipment (UE) and carries out data from second carrier set
Transmission.
12. device as claimed in claim 11, which is characterized in that the processing module is specifically used for:
According to the carrier measurements that the UE is reported, selection target carrier wave distributes to the UE from second carrier set
Carry out data transmission.
13. device as claimed in claim 8, which is characterized in that the processing module is also used to:
Signal energy detection is carried out to target carrier according to the first detection module, shown second detection module is carried out with reference to letter
Number detection as a result, and reported by user equipment UE carrier measurements, select the target that carries out data transmission for the UE
Carrier wave.
14. the device as described in claim 8~13 is any, which is characterized in that the reference signal is discovery reference signal；
Second detection module is specifically used for: the primary synchronization signal in the target carrier in detection discovery reference signal
PSS and/or secondary synchronization signal SSS.
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| CN201410613036.7A CN105634847B (en) | 2014-11-04 | 2014-11-04 | A kind of free time carrier detecting method and device |
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| CN201410613036.7A CN105634847B (en) | 2014-11-04 | 2014-11-04 | A kind of free time carrier detecting method and device |
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