CN105634847A - Idle carrier detection method and apparatus - Google Patents
Idle carrier detection method and apparatus Download PDFInfo
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- CN105634847A CN105634847A CN201410613036.7A CN201410613036A CN105634847A CN 105634847 A CN105634847 A CN 105634847A CN 201410613036 A CN201410613036 A CN 201410613036A CN 105634847 A CN105634847 A CN 105634847A
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Abstract
The invention relates to the field of communication technology, in particular to an idle carrier detection method and apparatus to achieve accurate detection of usable idle carriers. The idle carrier detection method provided by an embodiment of the invention comprises that a network side device carries out signal energy detection of a target carrier; the network side device detects a reference signal on the target carrier after detecting that the signal energy of the target carrier is lower than a set energy threshold; and the target carrier is determined as an idle carrier if the network side device does not detect the reference signal on the target carrier. The embodiment of the invention can accurately detect the idle carrier by means of combining signal energy measurement with reference signal measurement.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of idle carrier detecting method and device.
Background technology
At present, data traffic demand is increasing, and authorizes frequency range limited, and how realizing low-cost data shunting is current urgent problem. At present, operator to adopt WLAN (WirelessLocalAreaNetworks, WLAN) for mobile data traffic shunting. But owing to WLAN is based on the access mechanism of competition, it is difficult to ensure that its service quality (QualityofService, QoS), cause that Consumer's Experience is poor.
Unauthorized frequency range is open for all of operation commercial city, and different operators has identical right and affixes one's name to Long Term Evolution (LongTermEvolution, LTE) system on unauthorized frequency range top. Unauthorized frequency range is adopted to assist to authorize frequency range to carry out LTE shunting, it is ensured that QoS, thus promoting Consumer's Experience. But, owing to each operation commercial city has identical right to use each carrier wave in unauthorized frequency range, namely, the network equipment of different operators is specially subscriber equipment (UserEquipment, UE) it is all random for distributing which carrier wave in unauthorized frequency range, without suitable interference Hedging mechanism, different operators uses the identical carrier wave in unauthorized frequency range will produce serious signal disturbing at the same area.
In order to avoid signal disturbing, network equipment can select the carrier wave being currently in idle condition to distribute to subscriber equipment (UserEquipment, UE) to carry out data transmission. But, specifically how to select to be in the carrier wave of idle condition, but without effective solution.
Summary of the invention
The embodiment of the present invention provides a kind of idle carrier detecting method and device, accurately detects utilizable idle carrier wave in order to realizing.
A kind of idle carrier detecting method that the embodiment of the present invention provides, including:
Target carrier is carried out signal energy detection by network equipment;
Described network equipment is detecting the signal energy of described target carrier lower than, after setting energy threshold, detecting reference signal in described target carrier;
If described network equipment does not detect reference signal in described target carrier, it is determined that described target carrier is idle carrier wave.
Alternatively, described network equipment determines that described target carrier is for, after idle carrier wave, also including:
Described target carrier is added first carrier set by described network equipment;
Described network equipment selects target carrier to distribute to user equipment (UE) to carry out data transmission from described first carrier set.
Alternatively, described network equipment selects target carrier to distribute to UE to carry out data transmission from first carrier set, including:
Described network equipment, according to the described UE carrier measurements reported, selects target carrier to distribute to described UE from described first carrier set and carries out data transmission.
Alternatively, after the reference signal that the detection of described network equipment sends in described target carrier, also include:
If described network equipment detects reference signal in described target carrier, then described target carrier is added the second carrier set;
When described network equipment is determined and be there is currently no idle carrier wave, select target carrier to distribute to user equipment (UE) from described second carrier set and carry out data transmission.
Alternatively, when described network equipment is determined and be there is currently no idle carrier wave, select target carrier to distribute to described UE from described second carrier set and carry out data transmission, including:
Described network equipment, according to the described UE carrier measurements reported, selects target carrier to distribute to described UE from described second carrier set and carries out data transmission.
Alternatively, described method also includes:
Described network equipment, according to target carrier carrying out signal energy detection, carrying out the result of reference signal detection and the carrier measurements of reported by user equipment UE, selects the target carrier carried out data transmission for described UE.
Alternatively, described reference signal is for finding reference signal;
Described network equipment detects reference signal in described target carrier, including:
Described network equipment detects the master sync signal PSS and/or auxiliary synchronous signals SSS that find in reference signal in described target carrier.
A kind of idle carrier selecting method that another embodiment of the present invention provides, including:
User equipment (UE) carries out carrier wave measurement for each target carrier; Described each target carrier is positioned at the unauthorized frequency range of Long Term Evolution LTE;
Described UE reports the carrier measurements for each target carrier to network equipment; Described carrier measurements is the described UE target carrier selecting for carrying out data transmission for described network equipment.
A kind of idle carrier sense provision that the embodiment of the present invention provides includes:
First detection module, for carrying out signal energy detection to target carrier;
Second detection module, is used for detecting that the signal energy of described target carrier is lower than after setting energy threshold at described first detection module, detection is the reference signal of transmission in described target carrier;
Processing module, if not detecting reference signal for described second detection module in described target carrier, it is determined that described target carrier is idle carrier wave.
A kind of idle carrier sense provision that another embodiment of the present invention provides includes:
Measurement module, for carrying out carrier wave measurement for each target carrier; Described each target carrier is positioned at the unauthorized frequency range of Long Term Evolution LTE;
Reporting module, for reporting described measurement module for the carrier measurements of each target carrier to network equipment; Described carrier measurements is the described UE target carrier selecting for carrying out data transmission for described network equipment.
In the embodiment of the present invention, network equipment is detecting the energy of target carrier lower than, after setting energy threshold, detecting reference signal, if reference signal not detected in this target carrier in this target carrier, it is determined that this target carrier be free time carrier wave. Obviously, the embodiment of the present invention adopts signal energy measurement to detect idle carrier wave in conjunction with the mode that reference signal is measured, it is possible to detect idle carrier wave exactly.
Accompanying drawing explanation
The idle carrier detecting method flow chart that Fig. 1 provides for the embodiment of the present invention one;
The UE side free time carrier detecting method flow chart corresponding with embodiment one that Fig. 2 provides for the embodiment of the present invention two;
The idle carrier detecting method flow chart that Fig. 3 provides for the embodiment of the present invention three;
The idle carrier detecting method flow chart that Fig. 4 provides for the embodiment of the present invention four;
The idle carrier sense provision structural representation that Fig. 5 provides for the embodiment of the present invention five;
The idle carrier sense provision structural representation that Fig. 6 provides for the embodiment of the present invention six.
Detailed description of the invention
Network equipment can based on signal energy detected carrier state, at this moment, if the signal energy of the target carrier detected lower than set energy threshold, then it is assumed that this target carrier is in idle condition. But, it being based purely on the mode of the idle carrier wave of signal energy detection, sensitivity is poor. In reality network design, although not having data to transmit in some target carrier, but being actually likely to taken by community, community is transmission of reference signals in this target carrier only, to ensure that this target carrier can be used for data transmission at any time. When only having reference signal transmission in target carrier, the signal energy of this target carrier detected is relatively low, at this moment will be defined as idle carrier wave, it is clear that the result so determined is irrational by mistake.
Based on this, a kind of method embodiments providing idle carrier wave of detection more accurately, its basic thought is: network equipment is detecting that the energy of target carrier is lower than after setting energy threshold, the reference signal that detection sends in this target carrier, if reference signal not detected in this target carrier, it is determined that this target carrier is idle carrier wave. Obviously, the embodiment of the present invention adopts signal energy measurement to detect idle carrier wave in conjunction with the mode that reference signal is measured, it is possible to detect idle carrier wave exactly.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
In the embodiment of the present invention, alleged target carrier refers mainly to be positioned at the carrier wave of the unauthorized frequency range of Long Term Evolution LTE, and certainly, the embodiment of the present invention is also applied for other carrier wave authorizing frequency range is carried out idle condition detection.
As it is shown in figure 1, the idle carrier detecting method flow chart provided for the embodiment of the present invention one, comprise the following steps:
S101: target carrier is carried out signal energy detection by network equipment.
Network equipment in the embodiment of the present invention can be specifically eNB.
In this step, target carrier after determining and carrying out data transmission (such as receiving the access request of UE) between needs and UE, can be carried out signal energy detection, in order to selecting can the target carrier of bearer data transmission by network equipment. Specifically, the target carrier selected can be carried out energy measuring by network equipment in the first detection window T0 (performing the duration of primary energy detection).
In being embodied as, it is possible to the target carrier randomly choosing unauthorized frequency range carries out signal energy detection, it is also possible to select in carrier list (content about carrier list can be discussed in detail in subsequent embodiment). When selecting target carrier from carrier list, when carrying out idle carrier wave detection before prioritizing selection, it is defined as the target carrier of idle carrier wave.
Consider the limited amount of target carrier, network equipment can be secondary to the maximum N1 of target carrier continuous detecting (N1 is be more than or equal to 1), if the result of this N1 time detection all shows that the signal energy of this target carrier is optionally greater than setting energy threshold, then it is assumed that this target carrier is busy carrier wave; If n-th (1��n��N1) detected, detect that the signal energy of this target carrier is lower than setting energy threshold, or the testing result of n-th��N1 time all shows that the signal energy of this target carrier is lower than setting energy threshold, then perform S102 (including in detection process, the signal energy value of target carrier is changed to lower than the situation setting energy threshold) from optionally greater than setting energy threshold.
S102: described network equipment is detecting the signal energy of described target carrier lower than, after setting energy threshold, detecting reference signal in described target carrier.
After S101, network equipment detects that signal energy is lower than the target carrier setting energy threshold, then in signal energy lower than setting detection reference signal in the target carrier of energy threshold. This reference signal can be specifically find reference signal, specifically, the master sync signal (PrimarySynchronizationSignal, PSS) and/or auxiliary synchronous signals (SecondarySynchronizationSignal, SSS) that find in reference signal can be detected.
S103: if described network equipment does not detect reference signal in described target carrier, it is determined that described target carrier is idle carrier wave.
In being embodied as, network equipment is at the second detection window T1(perform the duration of a reference signal detection, this T1The maximum transmission cycle be more than or equal to reference signal) in, the signal energy that S101 is detected carries out reference signal detection lower than the target carrier setting energy threshold. Network equipment can be secondary to the maximum N2 of this target carrier continuous detecting (N2 is be more than or equal to 1), if this testing result of N2 time all shows the transmission that there is reference signal in this target carrier, then it is assumed that this target carrier is busy carrier wave; If be detected that time the m time (1��m��N2), the transmission being absent from reference signal in this target carrier detected, or the testing result of m��N2 time all shows to be absent from this target carrier the transmission of reference signal, then think that this target carrier is for idle carrier wave (including in detection process, target carrier is changed to the situation of idle carrier wave from busy carrier wave). Reference signal in the embodiment of the present invention can be that (but not limited to) finds reference signal, and discovery reference signal here refers to the signal finding oneself for miscellaneous equipment (such as UE) that network equipment sends.
Alternatively, after S103, also include:
Described target carrier is added first carrier set by described network equipment;
Described network equipment selects target carrier to distribute to described UE to carry out data transmission from described first carrier set.
In specific implementation process, network equipment can detect that the signal energy of a target carrier is lower than after setting energy threshold, namely the transmission that whether there is reference signal in this target carrier is detected, once it is determined that without reference to the transmission of signal in this target carrier, namely determine that this target carrier is for idle carrier wave, and distribute the transfer resource on this free time carrier wave for UE. Namely, network equipment can detect successively each target carrier signal energy and in this target carrier send reference signal, once confirm an idle carrier wave, being UE and distributing the transfer resource on this free time carrier wave, and not continuing to detect next target carrier. First network equipment can also detect multiple idle carrier wave, then selects to be adapted for the best idle carrier wave of data transmission in these multiple idle carrier waves, such as selects the idle carrier wave that the signal energy that detects is minimum. Specifically, network equipment safeguards a carrier list, for storing different types of carrier set, such as, carrier set can include three classes, it is first carrier set, the second carrier set and the 3rd carrier set respectively, wherein, first carrier set is for storing each the idle carrier wave detected, second carrier set is used for storing each signal energy lower than setting energy threshold, but there is the target carrier of reference signal transmission, the 3rd carrier set is for storing each signal energy optionally greater than the target carrier setting energy threshold. After network equipment completes target carrier detection, from first carrier set, select to distribute to the target carrier of UE, and when selecting the target carrier for carrying out signal energy detection, can also preferentially select from the first carrier set safeguarded, if after the target carrier in having detected first carrier set, still without idle carrier wave being detected, detect the target carrier in the second carrier set again, if after the target carrier in having detected the second carrier set, still without idle carrier wave being detected, then detect the target carrier in the 3rd carrier set.
It should be noted that
Alternatively, after S103, also include:
If described network equipment detects reference signal in described target carrier, then described target carrier is added the second carrier set;
When described network equipment is determined and be there is currently no idle carrier wave, select target carrier to distribute to described UE from described second carrier set and carry out data transmission.
In specific implementation process, when heavier loads, it is possible to idle carrier wave cannot be detected, then now network equipment can distribute the transfer resource in the target carrier in second carrier set for UE.
Alternatively, described method also includes:
Described network equipment, according to target carrier carrying out signal energy detection, carrying out the result of reference signal detection and the carrier measurements of reported by user equipment UE, selects the target carrier carried out data transmission for described UE.
In specific implementation process, in order to improve the accuracy of carrier wave detection further, UE auxiliary can be adopted to carry out idle carrier wave detection, at this moment, in conjunction with network equipment, target carrier can be carried out the result of signal energy detection, reference signal detection, and the carrier measurements that UE reports, to select target carrier for UE, the carrier measurements that UE reports can be specifically channel quality instruction (ChannelQualityIndicator, CQI) information of target carrier. specifically, it is possible to according to the described UE carrier measurements reported, select target carrier to distribute to UE from first carrier set to carry out data transmission. such as, if certain target carrier being absent from first carrier set in the carrier measurements that reports of UE, then illustrate that this target carrier is currently without occupied, it is possible to select this target carrier as idle carrier wave. when first carrier set is absent from idle carrier wave, it is possible to according to the UE carrier measurements reported, the target carrier that one channel quality of selection is best from the second carrier set is distributed to described UE and carried out data transmission. in reality is implemented, according to the UE carrier measurements reported, the situation of the channel quality of the target carrier that the channel quality of the target carrier in the second carrier set is better than in first carrier set likely occurs, existence in view of the situation, can further confirm that whether the channel quality of the target carrier in first carrier set is lower than default channel quality thresholds (being adapted for the lowest channel quality of data transmission), if not, the target carrier in this first carrier set can be still selected to distribute to UE, otherwise, the target carrier in good second carrier set of channel quality is selected to distribute to UE.
As in figure 2 it is shown, the UE side free time carrier detecting method flow chart corresponding with embodiment one provided for the embodiment of the present invention two, being embodied as and implement a repetition part, repeating no more, this embodiment two comprises the following steps:
S201:UE carries out carrier wave measurement for each target carrier; Described each target carrier is positioned at the unauthorized frequency range of Long Term Evolution LTE.
In this step, UE can measure list according to the target carrier that network equipment issues, and each target carrier is carried out carrier wave measurement, or, it is predetermined that this target carrier measures list, now, UE measures list according to predetermined target carrier, and each target carrier is carried out carrier wave measurement.
S202: described UE reports the carrier measurements for each target carrier to network equipment; Described carrier measurements is the described UE target carrier selecting for carrying out data transmission for described network equipment.
In this step, the carrier measurements of each target carrier is sent to network equipment by UE, and network equipment is in conjunction with this carrier measurements, and self carries out the result that idle carrier wave detects, and selects the target carrier for carrying out data transmission for UE.
The method that the embodiment of the present invention carries out idle carrier wave detection below by two specific embodiments is described further.
As it is shown on figure 3, the idle carrier detecting method flow chart provided for the embodiment of the present invention three, including:
S301: target carrier is carried out signal energy detection by network equipment.
S302: described network equipment is detecting the signal energy of described target carrier lower than, after setting energy threshold, detecting reference signal in described target carrier.
S303: if described network equipment does not detect reference signal in described target carrier, it is determined that described target carrier is idle carrier wave, and described target carrier is added first carrier set.
S304: if described network equipment detects reference signal in described target carrier, then described target carrier is added the second carrier set.
S305: described network equipment receives the UE carrier measurements reported, according to this UE carrier measurements reported, selects target carrier to distribute to this UE from described first carrier set and carries out data transmission; When described network equipment determine first carrier set is absent from idle carrier wave time, according to this UE carrier measurements reported, select target carrier to distribute to this UE from described second carrier set and carry out data transmission.
As shown in Figure 4, for the embodiment of the present invention four provide idle carrier detecting method flow chart, including:
S401: network equipment needs after for UE allocation of transmission resources determining, selects target carrier to carry out signal energy detection from carrier list.
S402: if described network equipment detects that the signal energy of described target carrier is optionally greater than setting energy threshold, then add the 3rd carrier set of carrier list by described target carrier.
S403: if network equipment detects that the signal energy of described target carrier is lower than setting energy threshold, then detection finds reference signal in described target carrier.
S404: if described network equipment does not detect discovery reference signal in described target carrier, it is determined that described target carrier is idle carrier wave, and described target carrier adds the first carrier set of carrier list.
S405: if described network equipment detects discovery reference signal in described target carrier, then add the second carrier set of carrier list by described target carrier.
S406: described network equipment is according to the UE CQI information reported, according to the priority orders of each carrier set, selects a target carrier meeting channel quality requirement from each carrier set, for the transfer resource in the target carrier that this UE distribution selects; Wherein, the priority of first carrier set is the highest, and the priority of the 3rd carrier set is minimum.
In this step, according to the UE CQI information reported, from first carrier set, first select to meet the idle carrier wave of the channel quality requirement of the business datum of UE needs transmission, distribute the transfer resource on this free time carrier wave for this UE. If first carrier set is absent from meeting the idle carrier wave of the channel quality requirement of the business datum of UE needs transmission, then select from the second carrier set, the 3rd carrier set again.
Based on same inventive concept, the embodiment of the present invention additionally provides the idle carrier sense provision that a kind of and idle carrier detecting method is corresponding, owing to the principle of this device solution problem is similar to embodiment of the present invention free time carrier detecting method, therefore the enforcement of this device may refer to the enforcement of method, repeats part and repeats no more.
As it is shown in figure 5, the idle carrier sense provision structural representation provided for the embodiment of the present invention five, including:
First detection module 51, for carrying out signal energy detection to target carrier;
Second detection module 52, is used for detecting that the signal energy of described target carrier is lower than, after setting energy threshold, detecting reference signal in described target carrier at first detection module 51;
Processing module 53, if not detecting reference signal for described second detection module 52 in described target carrier, it is determined that described target carrier is idle carrier wave.
Alternatively, described processing module 53 is additionally operable to:
Described target carrier is added first carrier set; Select target carrier to distribute to user equipment (UE) from described first carrier set to carry out data transmission.
Alternatively, described processing module 53 specifically for:
According to the described UE carrier measurements reported, select target carrier to distribute to described UE from described first carrier set and carry out data transmission.
Alternatively, described processing module 53 is additionally operable to:
If reference signal being detected in described target carrier, then described target carrier is added the second carrier set; When determine there is currently no idle carrier wave time, select target carrier to distribute to user equipment (UE) from described second carrier set and carry out data transmission.
Alternatively, described processing module 53 specifically for:
According to the described UE carrier measurements reported, select target carrier to distribute to described UE from described second carrier set and carry out data transmission.
Alternatively, described processing module 53 is additionally operable to:
According to described first detection module 51, target carrier is carried out signal energy detection, shown second detection module carries out the result of reference signal detection, and the carrier measurements of reported by user equipment UE, selects the target carrier carried out data transmission for described UE.
Alternatively, described reference signal is for finding reference signal;
Described second detection module 52 specifically for: in described target carrier, detection finds the master sync signal PSS in reference signal and/or auxiliary synchronous signals SSS.
As shown in Figure 6, for the idle carrier sense provision structural representation that the embodiment of the present invention six provides, this device includes:
Measurement module 61, for carrying out carrier wave measurement for each target carrier; Described each target carrier is positioned at the unauthorized frequency range of Long Term Evolution LTE;
Reporting module 62, for reporting described measurement module for the carrier measurements of each target carrier to network equipment; Described carrier measurements is the described UE target carrier selecting for carrying out data transmission for described network equipment.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program. Therefore, the present invention can adopt the form of complete hardware embodiment, complete software implementation or the embodiment in conjunction with software and hardware aspect. And, the present invention can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, device (system) and computer program describe. It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame. These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment. So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art. So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. an idle carrier detecting method, it is characterised in that the method includes:
Target carrier is carried out signal energy detection by network equipment;
Described network equipment, after the signal energy detected in described target carrier is lower than setting energy threshold, detects reference signal in described target carrier;
If described network equipment does not detect reference signal in described target carrier, it is determined that described target carrier is idle carrier wave.
2. the method for claim 1, it is characterised in that described network equipment determines that described target carrier is for, after idle carrier wave, also including:
Described target carrier is added first carrier set by described network equipment;
Described network equipment selects target carrier to distribute to user equipment (UE) to carry out data transmission from described first carrier set.
3. method as claimed in claim 2, it is characterised in that described network equipment selects target carrier to distribute to UE to carry out data transmission from first carrier set, including:
Described network equipment, according to the described UE carrier measurements reported, selects target carrier to distribute to described UE from described first carrier set and carries out data transmission.
4. the method for claim 1, it is characterised in that after the reference signal that the detection of described network equipment sends in described target carrier, also include:
If described network equipment detects reference signal in described target carrier, then described target carrier is added the second carrier set;
When described network equipment is determined and be there is currently no idle carrier wave, select target carrier to distribute to user equipment (UE) from described second carrier set and carry out data transmission.
5. method as claimed in claim 4, it is characterised in that when described network equipment is determined and be there is currently no idle carrier wave, selects target carrier to distribute to described UE from described second carrier set and carries out data transmission, including:
Described network equipment, according to the described UE carrier measurements reported, selects target carrier to distribute to described UE from described second carrier set and carries out data transmission.
6. the method for claim 1, it is characterised in that described method also includes:
Described network equipment, according to target carrier carrying out signal energy detection, carrying out the result of reference signal detection and the carrier measurements of reported by user equipment UE, selects the target carrier carried out data transmission for described UE.
7. the method as described in as arbitrary in claim 1��6, it is characterised in that described reference signal is for finding reference signal;
Described network equipment detects reference signal in described target carrier, including:
Described network equipment detects the master sync signal PSS and/or auxiliary synchronous signals SSS that find in reference signal in described target carrier.
8. an idle carrier selecting method, it is characterised in that the method includes:
User equipment (UE) carries out carrier wave measurement for each target carrier; Described each target carrier is positioned at the unauthorized frequency range of Long Term Evolution LTE;
Described UE reports the carrier measurements for each target carrier to network equipment; Described carrier measurements is the described UE target carrier selecting for carrying out data transmission for described network equipment.
9. an idle carrier sense provision, it is characterised in that this device includes:
First detection module, for carrying out signal energy detection to target carrier;
Second detection module, is used for detecting that the signal energy of described target carrier is lower than, after setting energy threshold, detecting reference signal in described target carrier at described first detection module;
Processing module, if not detecting reference signal for described second detection module in described target carrier, it is determined that described target carrier is idle carrier wave.
10. device as claimed in claim 9, it is characterised in that described processing module is additionally operable to:
Described target carrier is added first carrier set; Select target carrier to distribute to user equipment (UE) from described first carrier set to carry out data transmission.
11. device as claimed in claim 10, it is characterised in that described processing module specifically for:
According to the described UE carrier measurements reported, select target carrier to distribute to described UE from described first carrier set and carry out data transmission.
12. device as claimed in claim 9, it is characterised in that described processing module is additionally operable to:
If reference signal being detected in described target carrier, then described target carrier is added the second carrier set; When determine there is currently no idle carrier wave time, select target carrier to distribute to user equipment (UE) from described second carrier set and carry out data transmission.
13. device as claimed in claim 12, it is characterised in that described processing module specifically for:
According to the described UE carrier measurements reported, select target carrier to distribute to described UE from described second carrier set and carry out data transmission.
14. device as claimed in claim 9, it is characterised in that described processing module is additionally operable to:
According to described first detection module, target carrier is carried out signal energy detection, shown second detection module carries out the result of reference signal detection, and the carrier measurements of reported by user equipment UE, selects the target carrier carried out data transmission for described UE.
15. the device as described in as arbitrary in claim 9��14, it is characterised in that described reference signal is for finding reference signal;
Described second detection module specifically for: in described target carrier, detection finds the master sync signal PSS in reference signal and/or auxiliary synchronous signals SSS.
16. an idle carrier wave selects device, it is characterised in that this device includes:
Measurement module, for carrying out carrier wave measurement for each target carrier; Described each target carrier is positioned at the unauthorized frequency range of Long Term Evolution LTE;
Reporting module, for reporting described measurement module for the carrier measurements of each target carrier to network equipment; Described carrier measurements is the described UE target carrier selecting for carrying out data transmission for described network equipment.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018053857A1 (en) * | 2016-09-26 | 2018-03-29 | 华为技术有限公司 | Device-to-device data transmission method, apparatus and system |
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