CN107113631A - Method for transmitting signals, device and equipment based on CA - Google Patents

Method for transmitting signals, device and equipment based on CA Download PDF

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Publication number
CN107113631A
CN107113631A CN201480084241.7A CN201480084241A CN107113631A CN 107113631 A CN107113631 A CN 107113631A CN 201480084241 A CN201480084241 A CN 201480084241A CN 107113631 A CN107113631 A CN 107113631A
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China
Prior art keywords
side apparatus
time
secondary carrier
carrier
sending
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CN201480084241.7A
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Chinese (zh)
Inventor
武雨春
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN107113631A publication Critical patent/CN107113631A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices

Abstract

The present embodiments relate to a kind of method for transmitting signals based on CA, device and equipment.This method includes：Judge whether secondary carrier needs detection state in reception side apparatus；If secondary carrier is in reception, side apparatus needs detection state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Method for transmitting signals provided in an embodiment of the present invention based on CA, device and equipment reduce the complexity and power consumption of communication system.

Description

Method for transmitting signals, device and equipment based on CA Technical field
The present embodiments relate to wireless communication technique more particularly to a kind of method for transmitting signals based on CA, device and equipment.
Background technique
Carrier convergence (Carrier Aggregation；Referred to as: CA) refer to that the carrier wave used in communication process is not limited only to one, but is communicated simultaneously on a main carrier and several secondary carriers.Access (Licensed Assisted Access is assisted in authorized frequency bands；In referred to as: LAA), carrier wave (Licensed carrier will be authorized；It referred to as: L-Carrier) is used as main carrier, by unauthorized carrier wave (Unlicensed Carrier；It referred to as: U-Carrier) is used as secondary carrier, U-Carrier is communicated under the assistance of L-Carrier.It is communicated using CA, due to increasing the quantity of carrier wave, can greatly improve the rate of communication.
In the prior art, when the transmission of signal is carried out by the way of CA in LAA, firstly the need of listening to U-Carrier whether occupied by other equipment, if no, i.e., U-Carrier is in idle condition, then the data of preset duration are sent by U-Carrier, after the data of the preset duration are sent, if there is signal to need to continue through U-Carrier transmission, U-Carrier is listened to again, to judge whether the U-Carrier is occupied by other equipment.When transmitting signal by the way of CA, usually there are two types of modes: one is the modes of L-Carrier and U-Carrier synchronized transmissions, one is the modes of L-Carrier and U-Carrier asynchronous transmission, wherein, in the mode of L-Carrier and U-Carrier synchronized transmissions, if base station detects that U-Carrier is not occupied by other equipment, to user equipment (User Equipment；Targeting signal referred to as: UE) is sent, until the sub-frame boundary of next L-Carrier, then starts to send data to UE.In the mode of L-Carrier and U-Carrier asynchronous transmission, the sub-frame boundary of U-Carrier and L-Carrier are not necessarily aligned.
However, in existing two kinds of emission modes, since UE is not aware that when base station starts to send signal on U-Carrier, therefore, UE needs to constantly detect the signal on U-Carrier, to receive the data of base station transmission, causes the complexity of communication system and power consumption higher.
Summary of the invention
The embodiment of the present invention provides a kind of method for transmitting signals based on CA, device and equipment, to reduce the complexity and power consumption of communication system.
In a first aspect, the embodiment of the present invention provides a kind of method for transmitting signals based on CA, comprising:
Judge whether secondary carrier is in reception side apparatus and needs detecting state；
If the secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to the reception side apparatus in the subframe of main carrier, whether so that the reception side apparatus is according to the indication signal, detecting has the signal for sending side apparatus transmission in the secondary carrier.
With reference to first aspect, in the first possible implementation of the first aspect, further includes:
The value of available channel assessment CCA counter is set to random number N；
CCA detection is carried out to the secondary carrier, if testing result is that the secondary carrier does not have occupied, the value of the CCA counter is subtracted 1, and repeat this step, until sending signal in the secondary carrier when value of the CCA counter is 0；
Wherein, N is integer, and is greater than 0.
The possible implementation of with reference to first aspect the first, it is in the second possible implementation of the first aspect, described to judge whether secondary carrier is in reception side apparatus and needs detecting state, comprising:
When sending the current subframe by the main carrier, the value M of the CCA counter is obtained；
If the value of the CCA counter is greater than 0, acquisition is calculated from the value M of the CCA counter and reduced to for 0 corresponding first time；
Compare the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；
If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
Wherein, M is the integer more than or equal to 0, and less than or equal to N.
It is with reference to first aspect, in a third possible implementation of the first aspect, described to judge whether secondary carrier is in reception side apparatus and needs detecting state, comprising:
During sending the current subframe to the reception side apparatus by the main carrier, starts and the CCA of the secondary carrier is detected, and the value of CCA counter is set to random number N；
It calculates to obtain from the value N of the CCA counter and reduced to for 0 corresponding third time；
Compare the third time and the second time, wherein second time is working as the main carrier Detect that current subframe terminates the remaining time from starting CCA in preceding subframe；
If the third time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
Wherein, N is integer, and is greater than 0.
Second aspect, the embodiment of the present invention provide a kind of method for transmitting signals based on CA, comprising:
It receives and sends the subframe that side apparatus is sent by main carrier；
If carrying indication signal in the subframe, according to the indication signal, the signal for whether having the sending side equipment to send in secondary carrier detected.
In conjunction with second aspect, in the first possible implementation of the second aspect, further includes:
If not carrying indication signal in the subframe, the signal for whether having the sending side equipment to send in the secondary carrier is not detected.
The third aspect, the embodiment of the present invention provide a kind of signal transmitting apparatus based on CA, comprising:
Judgment module needs detecting state for judging whether secondary carrier is in reception side apparatus；
Processing module, if judging that the secondary carrier is in reception side apparatus and needs detecting state for the judgment module, then generate indication signal, and indication signal carrying is sent to the reception side apparatus in the subframe of main carrier, whether so that the reception side apparatus is according to the indication signal, detecting has the signal for sending side apparatus transmission in the secondary carrier.
In conjunction with the third aspect, in the first possible implementation of the third aspect, the processing module, the value for being also used to assess available channel CCA counter is set to random number N；
Then described device further include: detection module and sending module；Wherein,
The detection module, for carrying out CCA detection to the secondary carrier, if testing result is that the secondary carrier is not occupied, then the value of the CCA counter is subtracted 1, and repeat this step, until triggering the sending module when value of the CCA counter is 0 and sending signal in the secondary carrier；Wherein, N is integer, and is greater than 0.
In conjunction with the first possible implementation of the third aspect, in the second possible implementation of the third aspect, the judgment module includes:
Acquiring unit obtains the value M of presently described CCA counter when the sending module sends the current subframe by the main carrier from the detection module；
The acquiring unit calculates acquisition from the value M of the CCA counter and reduced to for 0 corresponding first time if the value for being also used to the CCA counter is greater than 0；
Judging unit is used for the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
Wherein, M is the integer more than or equal to 0, and less than or equal to N.
In conjunction with the third aspect, in the third possible implementation of the third aspect, further includes: detection module and sending module；Wherein,
The detection module, for the CCA detection to the secondary carrier；
The sending module, for sending current subframe to the reception side apparatus by the main carrier；
Then the judgment module includes:
Acquiring unit, for starting the detection module and being detected to the CCA of the secondary carrier, and the value of CCA counter is set to random number N during the sending module sends the current subframe to the reception side apparatus by the main carrier；
The acquiring unit is also used to calculate acquisition from the value N of the CCA counter and reduced to for 0 corresponding third time；
Judging unit is used for the third time and the second time, wherein second time is to detect that current subframe terminates the remaining time from starting CCA in the current subframe of the main carrier；If the third time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
Wherein, N is integer, and is greater than 0.
Fourth aspect, the embodiment of the present invention provide a kind of signal transmitting apparatus based on CA, comprising:
Receiving module, for receiving the subframe for sending side apparatus and sending by main carrier；
Detection module, if, according to the indication signal, the signal for whether having the sending side equipment to send in secondary carrier detected for carrying indication signal in the received subframe of the receiving module.
In conjunction with fourth aspect, in the first possible implementation of the fourth aspect, the signal for whether having the sending side equipment to send in the secondary carrier do not detected if being also used to not carry indication signal in the received subframe of the receiving module for the detection module.
5th aspect, the embodiment of the present invention provide a kind of transmission side apparatus, comprising:
Processor needs detecting state for judging whether secondary carrier is in reception side apparatus；
The processor needs detecting state if being also used to the secondary carrier and being in reception side apparatus, generates indication signal, and the indication signal is carried in the subframe of main carrier；
Transmitter, for sending the subframe to side apparatus is received by the main carrier, whether so that the reception side apparatus is according to the indication signal, detecting has the signal for sending side apparatus transmission in the secondary carrier.
In conjunction with the 5th aspect, in the first possible implementation of the 5th aspect, further includes:
The processor, the value for being also used to assess available channel CCA counter are set to random number N；
The processor is also used to carry out CCA detection to the secondary carrier, if testing result is that the secondary carrier is not occupied, then the value of the CCA counter is subtracted 1, and this step is repeated, until sending signal in the secondary carrier when value of the CCA counter is 0；Wherein, N is integer, and is greater than 0.
In conjunction with the first possible implementation of the 5th aspect, in second of possible implementation of the 5th aspect, the processor is also used to obtain the value M of the CCA counter when sending the current subframe by the main carrier；If the value of the CCA counter is greater than 0, acquisition is calculated from the value M of the CCA counter and reduced to for 0 corresponding first time；Compare the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；Wherein, M is the integer more than or equal to 0, and less than or equal to N.
In conjunction with the 5th aspect, in the third possible implementation of the 5th aspect, the processor is also used to during sending the current subframe to the reception side apparatus by the main carrier, start and the CCA of the secondary carrier is detected, and the value of CCA counter is set to random number N；It calculates to obtain from the value N of the CCA counter and reduced to for 0 corresponding third time；Compare the third time and the second time, wherein second time is to detect that current subframe terminates the remaining time from starting CCA in the current subframe of the main carrier；If the third time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；Wherein, N is integer, and is greater than 0.
6th aspect, the embodiment of the present invention provide a kind of reception side apparatus, comprising:
Receiver, for receiving the subframe for sending side apparatus and sending by main carrier；
Processor, if, according to the indication signal, the signal for whether having the sending side equipment to send in the secondary carrier detected for carrying indication signal in the received subframe of the receiver.
In conjunction with the 6th aspect, in the first possible implementation of the 6th aspect, the processor does not detect described auxiliary if being also used to not carry indication signal in the received subframe of the receiver The signal for whether thering is the sending side equipment to send on carrier wave.
Method for transmitting signals based on CA, device and equipment provided in an embodiment of the present invention need detecting state by judging whether secondary carrier is in reception side apparatus；If secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Indication signal is sent to reception side apparatus in the state that secondary carrier needs to detect in reception side apparatus due to sending side apparatus, just start to detect whether to have in secondary carrier after receiving indication signal to send the signal that side apparatus is sent so as to receive side apparatus, to reduce the complexity and power consumption of communication system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the drawings to be used in the description of the embodiments or prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment one of CA；
Fig. 2 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment two of CA；
Fig. 3 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment three of CA；
Fig. 4 is that the present invention is based on the flow diagrams of the method for transmitting signals example IV of CA；
Fig. 5 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment five of CA；
Fig. 6 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus embodiment one of CA；
Fig. 7 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus embodiment two of CA；
Fig. 8 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus embodiment three of CA；
Fig. 9 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus example IV of CA；
Figure 10 is the structural schematic diagram of sending side apparatus embodiments one provided by the invention；
Figure 11 is the structural schematic diagram of receiving side apparatus embodiments one provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than complete The embodiment in portion.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment one of CA.The embodiment of the invention provides a kind of method for transmitting signals based on CA, the executing subject of the present embodiment is transmission side apparatus, such as can be base station or UE, when sending side apparatus is base station, corresponding reception side apparatus is UE, and when sending side apparatus is UE, corresponding reception side apparatus is base station.With base station to send side apparatus in the present embodiment, UE is to be described in detail for receiving side apparatus, if being transmission side apparatus with UE, base station is that treatment process when receiving side apparatus is similar with its, and details are not described herein again.As shown in Figure 1, the method for the present embodiment may include:
Step 101 judges whether secondary carrier is in reception side apparatus and needs detecting state.
It in the present embodiment, is L-Carrier with main carrier, secondary carrier is described in detail for being U-Carrier.Unlike L-Carrier, when transmitting signal by U-Carrier, U-Carrier will follow the principle that Fairshare resource is carried out with other systems (such as WiFi etc.).In practical applications, base station first has to carry out available channel assessment (Clear Channel Assessment to U-Carrier；It referred to as: CCA) detects, if U-Carrier carrier wave is not occupied by other equipment, that is, when being in idle condition, then carries out the transmission of signal on U-Carrier.Therefore, base station is by judging a possibility that secondary carrier is in idle condition within a preset period of time, so that it is determined that whether secondary carrier, which is in UE, needs detecting state, if a possibility that secondary carrier is in idle condition within a preset period of time is larger, then it is in UE and needs detecting state, otherwise, UE does not detect secondary carrier.
If step 102, secondary carrier are in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.
In the present embodiment, before or after whether base station can be in UE and need detecting state judging secondary carrier, subframe is sent to UE by main carrier.In addition, if base station knows that U-Carrier is in UE and needs detecting state by judgement, then generate an indication signal, and the indication signal is carried and is sent to UE in the subframe of main carrier, after UE receives the indication signal, U-Carrier is detected since this subframe according to indication signal, with know base station whether by U-Carrier carry out signal transmission, if UE detects the signal for having base station to send on U-Carrier in this subframe, base station and UE start to be communicated on U-Carrier.It can be seen that UE only just starts to detect U-Carrier after receiving indication signal, to carry out the reception of data, rather than the moment detects U-Carrier, To reduce the complexity and power consumption of communication system.
In addition, indication signal can be the signal that carries in a new channel on L-Carrier, such as pass through the design unauthorized instruction channel of one new physics (Physical Unlicensed Indicator Channel；Referred to as: PUICH), indication signal is carried in the channel；It is also possible to existing Physical Downlink Control Channel (Physical Downlink Control Channel；Referred to as: PDCCH)/enhanced Physical Downlink Control Channel (enhanced physical downlink control channel；Referred to as: ePDCCH)/Physical Control Format Indicator Channel (Physical Control Format Indicator Channel；Signal in referred to as: PCFICH) after reinterpreting.For the specific implementation of indication signal, the present invention is not particularly limited herein.
Method for transmitting signals provided in an embodiment of the present invention based on CA needs detecting state by judging whether secondary carrier is in reception side apparatus；If secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Due to sending side apparatus when secondary carrier is in the state that reception side apparatus needs to detect, indication signal is sent to the reception side apparatus, it receives side apparatus just to start to detect whether to have in secondary carrier after receiving indication signal to send the signal that side apparatus is sent, to reduce the complexity and power consumption of communication system.
Fig. 2 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment two of CA.On the basis of the present embodiment embodiment shown in Fig. 1, to the embodiment for sending signal in secondary carrier, elaborate.As shown in Fig. 2, the method for the present embodiment may include:
The value of CCA counter is set to random number N by step 201；Wherein, N is integer, and is greater than 0.
In the present embodiment, due to before U-Carrier transmitting data, needing first to listen to U-Carrier, to detect the U-Carrier either with or without occupied by other equipment, i.e., whether it is in idle condition.During concrete implementation, it can be listened to by the state of the methods of energy measuring or signal detection to the U-Carrier.It is illustrated by taking energy measuring as an example in the present embodiment, specifically, base station by detecting the signal power value on U-Carrier channel within a preset period of time, judge whether the signal power value is more than preset threshold, if being more than, then illustrate U-Carrier occupied by other equipment, if being not above the preset threshold, then illustrate that U-Carrier is in idle condition, wherein, the value of preset time period and preset threshold can rule of thumb or actual conditions are selected, selection for the occurrence of preset time period and preset threshold, the present embodiment is not particularly limited herein.Such as: base station is by the way of energy measuring When being listened to U-Carrier, after lasting detection 20us, if the signal power detected is more than -62dBm, then it is assumed that the U-Carrier is occupied by other equipment.In actual application, generally by way of combining CCA counter, n times detection is carried out to U-Carrier, to improve the accuracy of detection.Specifically, when starting detection, the value of CCA counter is set to N, wherein N is one randomly selected within the scope of default value and is greater than 0 integer, and default value range can be for example 4-32, and for default value range, the present embodiment is not particularly limited herein.
Step 202 carries out CCA detection to secondary carrier, if testing result is that secondary carrier does not have occupied, subtracts 1 for the value of CCA counter, and repeat this step, until sending signal in secondary carrier when the value of CCA counter is 0.
In the present embodiment, after the value of CCA counter being set to N, base station starts the state for constantly listening to secondary carrier, if often listening to once, it is found that the value of CCA counter not occupied by other equipment, is then subtracted 1 by the secondary carrier.If before the value of CCA counter reduces to 0, certain CCA detection the result is that secondary carrier occupied by other equipment, then the current value of CCA counter is reset, and a N ' value is randomly selected in preset numberical range again, the value of CCA counter is set to N ', restarts to detect, and is repeated continuously this process, when the value of CCA counter reduces to 0, base station can just send signal in secondary carrier.
Need to be illustrated is, after the signal for sending certain time length by secondary carrier, if desired continue to send signal, secondary carrier must then be listened to again, after confirming that no other equipment occupy secondary carrier, could continue to send, if finding that the secondary carrier is occupied by other equipment after listening to, after then base station just needs to wait until that secondary carrier is in idle condition, it can just continue to send.If secondary carrier is constantly in occupied state within a preset period of time, base station sends signal by main carrier, or data to be sent are abandoned., can rule of thumb or type of service selects suitable preset time period during concrete implementation, for example, preset time period is chosen for 80ms, when browsing webpage, preset time period is chosen for 2s etc. when type of service is voice communication.Selection for the occurrence of preset time period, the present embodiment are not particularly limited herein.
Method for transmitting signals provided in an embodiment of the present invention based on CA needs detecting state by judging whether secondary carrier is in reception side apparatus；If secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Due to sending side apparatus when secondary carrier is in the state that reception side apparatus needs to detect, to the reception side apparatus Indication signal is sent, side apparatus is received and just starts to detect whether to have in secondary carrier after receiving indication signal to send the signal that side apparatus is sent, to reduce the complexity and power consumption of communication system.In addition, signal can be sent by secondary carrier by sending side apparatus when detecting that secondary carrier is not occupied by other equipment, due to being communicated simultaneously by main carrier and secondary carrier, the quantity of carrier wave is increased, to greatly improve the rate of communication.
Fig. 3 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment three of CA.The present embodiment, to judging whether secondary carrier is in the embodiment for receiving side apparatus and needing detecting state, elaborates on the basis of Fig. 1 and embodiment illustrated in fig. 2.As shown in figure 3, the method for the present embodiment may include:
Step 301, by main carrier send current subframe when, obtain CCA counter value M, wherein M be more than or equal to 0, and be less than or equal to N integer.
In the present embodiment, if before sending current subframe by main carrier, base station just has begun the state of detection secondary carrier, and when base station sends current subframe by main carrier, the detection process is also continuing, at this point it is possible to get the numerical value M of CCA counter.Specifically, if base station finds the secondary carrier not occupied by other equipment during detecting the state of secondary carrier, it is obtaining as a result, at this time after then numerical value M constantly subtracts 1 with detection number for the initial value N of CCA counter, M is the integer more than or equal to 0, and less than N；If when base station sends current subframe by main carrier, since secondary carrier is occupied by other equipment, at this time, the value to CCA counter is needed to choose again within the scope of default value, and using the numerical value chosen again as the value M of CCA counter, then M is possible to be equal to N, it is also possible to be less than N.
If step 302, the value of CCA counter are greater than 0, acquisition is calculated from the value M of CCA counter and reduced to for 0 corresponding first time.
In the present embodiment, it after getting the value M of CCA counter, calculates from the value M of CCA counter and reduced to for 0 corresponding first time, i.e., base station is to the time required for state-detection M times of secondary carrier.For example, the value M of the CCA counter got is 21, it is assumed that the time required for primary to secondary carrier detection is 20us, then calculating the first time got is 420us.
Step 303 compares first time and the second time, wherein the second time was the current subframe of the main carrier remaining time.
In the present embodiment, it will be understood by those skilled in the art that when base station carries out the transmission of data by radio frames, wherein the period of a radio frames is 10ms comprising 10 subframes.Therefore, the time required for one subframe of every transmission is 1ms.Due to being before base station sends current subframe at the first time It has just obtained, therefore, the current subframe of the main carrier remaining time is the time required for sending entire current subframe, i.e. the second time is 1ms.
If step 304, first time were less than or equal to for the second time, judge that secondary carrier is in reception side apparatus and needs detecting state.
In the present embodiment, after being compared to first time and the second time, if being less than or equal to for the second time at the first time, then during sending current subframe by main carrier, the CCA counter having been started up is possible to that 0 can be reduced to explanation, at this time, it will know that secondary carrier is in UE and needs detecting state, and base station can generate an indication signal, and the indication signal is carried in current subframe, be sent to UE.
Need to be illustrated is, assume that secondary carrier never occupied by other equipment at the first time, time required for continuous detection M times can not illustrate that secondary carrier is in idle condition within the second time if being less than or equal to for the second time at the first time.Such as: it, to when receiving side apparatus transmission current subframe, calculates by main carrier and knows that first time was less than or equal to for the second time, be sent to UE in current subframe at this point, indication signal can be carried.But the detection process of secondary carrier state will continue to carry out, if in the detection process, discovery secondary carrier is occupied by other equipment, at this point, the transmission of signal just cannot be carried out by secondary carrier.In this case, after UE receives indication signal, although can detect according to indication signal to secondary carrier, the signal that base station is sent can be not necessarily detected in secondary carrier.
Method for transmitting signals provided in an embodiment of the present invention based on CA needs detecting state by judging whether secondary carrier is in reception side apparatus；If secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Due to sending side apparatus when secondary carrier is in the state that reception side apparatus needs to detect, indication signal is sent to the reception side apparatus, it receives side apparatus just to start to detect whether to have in secondary carrier after receiving indication signal to send the signal that side apparatus is sent, to reduce the complexity and power consumption of communication system.In addition, reduced to for 0 corresponding first time by comparing from the value M of CCA counter, and the size between the second remaining time of current subframe is sent by main carrier, show whether secondary carrier is in reception side apparatus and needs detecting state, to decide whether to side apparatus transmission indication signal is received, it is possible thereby to the transmission for carrying out signal using secondary carrier of maximal efficiency.
Fig. 4 is that the present invention is based on the flow diagrams of the method for transmitting signals example IV of CA.On the basis of the present embodiment embodiment shown in Fig. 1, to judge secondary carrier whether be in receive side apparatus need to detect The embodiment of state, elaborates.The present embodiment and embodiment three the difference is that: if to during receiving side apparatus and send current subframe, when starting to carry out CCA detection to secondary carrier, how to judge whether secondary carrier is in by main carrier and receive side apparatus and need detecting state.As shown in figure 4, the method for the present embodiment may include:
Step 401, to during receiving side apparatus transmission current subframe, starts and detects to the CCA of secondary carrier, and the value of CCA counter is set to random number N, wherein N is integer, and is greater than 0 by main carrier.
In the present embodiment, during base station sends current subframe to UE by main carrier, if judge secondary carrier whether be in receive side apparatus need detecting state when, base station, which starts, detects the CCA of secondary carrier state, at this time, a numerical value of N, the value as CCA counter are randomly selected out of preset numberical range.
Step 402, calculating, which are obtained from the value N of CCA counter, reduced to for 0 corresponding third time.
In the present embodiment, it after getting the value N of CCA counter, calculates from the value N of CCA counter and reduces to 0 corresponding third time, i.e. time required for state-detection n times of the base station to secondary carrier.
Step 403 compares third time and the second time, wherein the second time was to detect that current subframe terminates the remaining time from starting CCA in the current subframe of main carrier.
In the present embodiment, time required for every subframe sent in a radio frames is 1ms, and due to just starting the CCA detection to secondary carrier during base station sends current subframe, just obtain the third time, therefore, second time was to detect that current subframe terminates the remaining time from starting CCA in the current subframe of main carrier, such as: when starting the 200us after transmission current subframe, base station, which just calculates, obtains the third time, at this time, the third time that base station will obtain, detect that current subframe terminates remaining time 800us and is compared from starting CCA in the current subframe of main carrier.
If step 404, third time were less than or equal to for the second time, judge that secondary carrier is in reception side apparatus and needs detecting state.
In the present embodiment, after being compared to third time and the second time, if the third time was less than or equal to for the second time, then illustrate base station in the current subframe sent by main carrier before end, start starting CCA counter be possible to that 0 can be reduced to, at this time, judgement is known that secondary carrier is in UE and needs detecting state, therefore base station can generate indication signal, and the indication signal is carried in the current subframe of main carrier, be sent to UE.
It needing to be illustrated, the third time assumes that secondary carrier never has occupied by other equipment, Time required for continuous detection n times can not illustrate that secondary carrier is in idle condition within the second time if the third time was less than or equal to for the second time.Such as: when sending current subframe to UE by main carrier, calculating knows that the third time was less than or equal to for the second time, at this point, base station, which can carry indication signal, is sent to UE in the current subframe of main carrier.But the detection process of secondary carrier state is continued, if in the detection process, discovery secondary carrier is occupied by other equipment, at this point, the transmission of signal just cannot be carried out by secondary carrier.In this case, after UE receives indication signal, although can be detected according to indication signal to secondary carrier, different surely detect sends the signal that side apparatus is sent in secondary carrier.
Method for transmitting signals provided in an embodiment of the present invention based on CA needs detecting state by judging whether secondary carrier is in reception side apparatus；If secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Due to sending side apparatus when secondary carrier is in the state that reception side apparatus needs to detect, indication signal is sent to the reception side apparatus, it receives side apparatus just to start to detect whether to have in secondary carrier after receiving indication signal to send the signal that side apparatus is sent, to reduce the complexity and power consumption of communication system.In addition, reduced to for 0 corresponding third time by comparing from the value N of CCA counter, and the current subframe of main carrier from starting CCA detect current subframe terminate the second remaining time between size, show whether secondary carrier is in reception side apparatus and needs detecting state, to decide whether to side apparatus transmission indication signal is received, it is possible thereby to the transmission for carrying out signal using secondary carrier of maximal efficiency.
Fig. 5 is that the present invention is based on the flow diagrams of the method for transmitting signals embodiment five of CA.The embodiment of the invention provides a kind of method for transmitting signals based on CA, the executing subject of the present embodiment is reception side apparatus, such as can be base station or UE, when sending side apparatus is base station, corresponding reception side apparatus is UE, and when sending side apparatus is UE, corresponding reception side apparatus is base station.With base station to send side apparatus in the present embodiment, UE is to be illustrated for receiving side apparatus.As shown in figure 5, the method for the present embodiment may include:
Step 501 receives the subframe that transmission side apparatus is sent by main carrier.
If carrying indication signal in step 502, subframe, whether according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.
In the present embodiment, when base station judges that secondary carrier is in UE and needs detecting state, the indication signal of generation is carried and is sent to UE in the subframe being currently transmitted, and by the subframe.UE is connecing After the subframe for receiving base station transmission, which can be parsed, if carrying indication signal in subframe, according to the indication signal, secondary carrier is listened to since this subframe, whether have the signal for sending side apparatus and sending in the secondary carrier to detect.The signal that side apparatus is sent is sent if detecting in this subframe and having in secondary carrier, base station and UE start to be communicated in secondary carrier.
Method for transmitting signals provided in an embodiment of the present invention based on CA, by receiving the subframe for sending side apparatus and sending by main carrier, if carrying indication signal in subframe, whether according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Only just start to detect whether have the signal for sending side apparatus and sending in secondary carrier after receiving indication signal due to receiving side apparatus, without constantly being detected, to reduce the complexity and power consumption of communication system.
Optionally, embodiment of the method as described above, whether if not carrying indication signal in subframe, not detecting has the signal for sending side apparatus transmission in secondary carrier.
Specifically, after UE receives the subframe of base station transmission and parses to the subframe, indication signal is not carried in discovery subframe, then whether do not detect has the signal for sending side apparatus transmission in secondary carrier.
Fig. 6 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus embodiment one of CA.As shown in fig. 6, the signal transmitting apparatus provided in an embodiment of the present invention based on CA includes judgment module 11 and processing module 12.
Wherein, judgment module 11 needs detecting state for judging whether secondary carrier is in reception side apparatus；If processing module 12 judges that the secondary carrier is in reception side apparatus and needs detecting state for the judgment module 11, then generate indication signal, and indication signal carrying is sent to the reception side apparatus in the subframe of main carrier, whether so that the reception side apparatus is according to the indication signal, detecting has the signal for sending side apparatus transmission in the secondary carrier.
Signal transmitting apparatus provided in an embodiment of the present invention based on CA needs detecting state by judging whether secondary carrier is in reception side apparatus；If secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to reception side apparatus in the subframe of main carrier, whether for receiving side apparatus according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Due to sending side apparatus when secondary carrier is in the state that reception side apparatus needs to detect, indication signal is sent to the reception side apparatus, it receives side apparatus just to start to detect whether to have in secondary carrier after receiving indication signal to send the signal that side apparatus is sent, to reduce the complexity and power consumption of communication system.
Fig. 7 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus embodiment two of CA, as shown in fig. 7, described device further includes 13 He of detection module on the basis of the present embodiment embodiment shown in Fig. 6 Sending module 14.
Wherein, the value that the processing module 12 is also used to assess available channel CCA counter is set to random number N；The detection module 13 is used to carry out CCA detection to the secondary carrier, if testing result is that the secondary carrier is not occupied, then the value of the CCA counter is subtracted 1, and repeat this step, until triggering the sending module 14 when the value of the CCA counter is 0 and sending signal in the secondary carrier；Wherein, N is integer, and is greater than 0.
Optionally, the judgment module 11 includes:
Acquiring unit 111 obtains the value M of presently described CCA counter when the sending module 14 sends the current subframe by the main carrier from the detection module；
If the value that the acquiring unit 111 is also used to the CCA counter is greater than 0, acquisition is calculated from the value M of the CCA counter and reduced to for 0 corresponding first time；
Judging unit 112 is used for the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
Wherein, M is the integer more than or equal to 0, and less than or equal to N.
The signal transmitting apparatus based on CA of the present embodiment can be used for executing the technical solution of the method for transmitting signals provided by any embodiment of the invention based on CA, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Fig. 8 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus embodiment three of CA, as shown in figure 8, described device further includes detection module 15 and sending module 16 on the basis of the present embodiment embodiment shown in Fig. 6.
Wherein, the detection module 15 is used to detect the CCA of the secondary carrier；
The sending module 16 is used to send current subframe to the reception side apparatus by the main carrier；
Then the judgment module 11 includes:
Acquiring unit 113, for starting the detection module 15 and being detected to the CCA of the secondary carrier, and the value of CCA counter is set to random number N during the sending module 16 sends the current subframe to the reception side apparatus by the main carrier；
The acquiring unit 113 is also used to calculate acquisition and reduced to for 0 corresponding third time from the value N of the CCA counter；
Judging unit 114 is used for the third time and the second time, wherein second time To detect that current subframe terminates the remaining time from starting CCA in the current subframe of the main carrier；If the third time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
Wherein, N is integer, and is greater than 0.
The signal transmitting apparatus based on CA of the present embodiment can be used for executing the technical solution of the method for transmitting signals provided by any embodiment of the invention based on CA, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Fig. 9 is that the present invention is based on the structural schematic diagrams of the signal transmitting apparatus example IV of CA.As shown in figure 9, the signal transmitting apparatus provided in an embodiment of the present invention based on CA includes receiving module 21 and detection module 22.
Wherein, receiving module 21, which is used to receive, sends the subframe that side apparatus is sent by main carrier；If for carrying indication signal in the received subframe of the receiving module 21, according to the indication signal, the signal for whether having the sending side equipment to send in secondary carrier detected for detection module 22.
Signal transmitting apparatus provided in an embodiment of the present invention based on CA, by receiving the subframe for sending side apparatus and sending by main carrier, if carrying indication signal in subframe, whether according to indication signal, detecting has the signal for sending side apparatus transmission in secondary carrier.Only just start to detect whether have the signal for sending side apparatus and sending in secondary carrier after receiving indication signal due to receiving side apparatus, without constantly being detected, to reduce the complexity and power consumption of communication system.
Optionally, if the detection module 22 is also used to not carry indication signal in the received subframe of the receiving module 21, the signal for whether having the sending side equipment to send in the secondary carrier is not detected.
The signal transmitting apparatus based on CA of the present embodiment can be used for executing the technical solution of the method for transmitting signals provided by any embodiment of the invention based on CA, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 10 is the structural schematic diagram of sending side apparatus embodiments one provided by the invention.As shown in Figure 10, transmission side apparatus provided in an embodiment of the present invention includes processor 31 and transmitter 32.
Wherein, processor 31 needs detecting state for judging whether secondary carrier is in reception side apparatus；If the processor 31, which is also used to the secondary carrier, needs detecting state in side apparatus is received, indication signal is generated, and the indication signal is carried in the subframe of main carrier；Transmitter 32 is used for through the main carrier to receiving the side apparatus transmission subframe, so that the reception side apparatus is according to the indication signal, It detects whether to have in the secondary carrier and sends the signal that side apparatus is sent.
Transmission side apparatus provided in this embodiment can be used for executing the technical solution of the method for transmitting signals provided by any embodiment of the invention based on CA, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, the value that the processor 31 is also used to assess available channel CCA counter is set to random number N；The processor 31 is also used to carry out CCA detection to the secondary carrier, if testing result is that the secondary carrier does not have occupied, the value of the CCA counter is subtracted 1, and repeat this step, until sending signal in the secondary carrier when value of the CCA counter is 0；Wherein, N is integer, and is greater than 0.
Optionally, the processor 31 is also used to obtain the value M of the CCA counter when sending the current subframe by the main carrier；If the value of the CCA counter is greater than 0, acquisition is calculated from the value M of the CCA counter and reduced to for 0 corresponding first time；Compare the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；Wherein, M is the integer more than or equal to 0, and less than or equal to N.
Optionally, the processor 31 is also used to start during sending the current subframe to the reception side apparatus by the main carrier and detect to the CCA of the secondary carrier, and the value of CCA counter is set to random number N；It calculates to obtain from the value N of the CCA counter and reduced to for 0 corresponding third time；Compare the third time and the second time, wherein second time is to detect that current subframe terminates the remaining time from starting CCA in the current subframe of the main carrier；If the third time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；Wherein, N is integer, and is greater than 0.
Transmission side apparatus provided in this embodiment can be used for executing the technical solution of the method for transmitting signals provided by any embodiment of the invention based on CA, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 11 is the structural schematic diagram of receiving side apparatus embodiments one provided by the invention.As shown in figure 11, reception side apparatus provided in an embodiment of the present invention includes receiver 41 and processor 42.
Wherein, receiver 41, which is used to receive, sends the subframe that side apparatus is sent by main carrier；If processor 42 is for carrying indication signal in the received subframe of the receiver 41, according to the indication signal, the signal for whether having the sending side equipment to send in the secondary carrier detected.
Reception side apparatus provided in this embodiment can be used for executing the technical solution of the method for transmitting signals provided by any embodiment of the invention based on CA, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, if the processor 42 is also used to not carry indication signal in the received subframe of the receiver 41, the signal for whether having the sending side equipment to send in the secondary carrier is not detected.
Reception side apparatus provided in this embodiment can be used for executing the technical solution of the method for transmitting signals provided by any embodiment of the invention based on CA, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
It is apparent to those skilled in the art that, for convenience and simplicity of description, only the example of the division of the above functional modules, in practical application, it can according to need and be completed by different functional modules above-mentioned function distribution, the internal structure of device is divided into different functional modules, to complete all or part of the functions described above.The specific work process of the system, apparatus, and unit of foregoing description, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the module or unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, each functional unit in each embodiment of the application can integrate in one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, originally Substantially all or part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products the technical solution of application in other words, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute each embodiment the method for the application all or part of the steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), the various media that can store program code such as magnetic or disk.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although the application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And these are modified or replaceed, the range of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.

Claims (18)

  1. A kind of method for transmitting signals based on CA characterized by comprising
    Judge whether secondary carrier is in reception side apparatus and needs detecting state；
    If the secondary carrier is in reception, side apparatus needs detecting state, then generate indication signal, and indication signal carrying is sent to the reception side apparatus in the subframe of main carrier, whether so that the reception side apparatus is according to the indication signal, detecting has the signal for sending side apparatus transmission in the secondary carrier.
  2. The method according to claim 1, wherein further include:
    The value of available channel assessment CCA counter is set to random number N；
    CCA detection is carried out to the secondary carrier, if testing result is that the secondary carrier does not have occupied, the value of the CCA counter is subtracted 1, and repeat this step, until sending signal in the secondary carrier when value of the CCA counter is 0；
    Wherein, N is integer, and is greater than 0.
  3. According to the method described in claim 2, it is characterized in that, described judge whether secondary carrier is in reception side apparatus and needs detecting state, comprising:
    When sending the current subframe by the main carrier, the value M of the CCA counter is obtained；
    If the value of the CCA counter is greater than 0, acquisition is calculated from the value M of the CCA counter and reduced to for 0 corresponding first time；
    Compare the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；
    If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
    Wherein, M is the integer more than or equal to 0, and less than or equal to N.
  4. Judge whether secondary carrier is in reception side apparatus and needs detecting state the method according to claim 1, wherein described, comprising:
    During sending the current subframe to the reception side apparatus by the main carrier, starts and the CCA of the secondary carrier is detected, and the value of CCA counter is set to random number N；
    It calculates to obtain from the value N of the CCA counter and reduced to for 0 corresponding third time；
    Compare the third time and the second time, wherein second time is that the current subframe of the main carrier detects that the current subframe terminates the remaining time from starting CCA；
    If the third time is less than or equal to second time, judge that the secondary carrier is in described It receives side apparatus and needs detecting state；
    Wherein, N is integer, and is greater than 0.
  5. A kind of method for transmitting signals based on CA characterized by comprising
    It receives and sends the subframe that side apparatus is sent by main carrier；
    If carrying indication signal in the subframe, according to the indication signal, the signal for whether having the sending side equipment to send in secondary carrier detected.
  6. According to the method described in claim 5, it is characterized by further comprising:
    If not carrying indication signal in the subframe, the signal for whether having the sending side equipment to send in the secondary carrier is not detected.
  7. A kind of signal transmitting apparatus based on CA characterized by comprising
    Judgment module needs detecting state for judging whether secondary carrier is in reception side apparatus；
    Processing module, if judging that the secondary carrier is in reception side apparatus and needs detecting state for the judgment module, then generate indication signal, and indication signal carrying is sent to the reception side apparatus in the subframe of main carrier, whether so that the reception side apparatus is according to the indication signal, detecting has the signal for sending side apparatus transmission in the secondary carrier.
  8. Device according to claim 7, which is characterized in that the processing module, the value for being also used to assess available channel CCA counter are set to random number N；
    Then described device further include: detection module and sending module；Wherein,
    The detection module, for carrying out CCA detection to the secondary carrier, if testing result is that the secondary carrier is not occupied, then the value of the CCA counter is subtracted 1, and repeat this step, until triggering the sending module when value of the CCA counter is 0 and sending signal in the secondary carrier；Wherein, N is integer, and is greater than 0.
  9. Device according to claim 8, which is characterized in that the judgment module includes:
    Acquiring unit obtains the value M of presently described CCA counter when the sending module sends the current subframe by the main carrier from the detection module；
    The acquiring unit calculates acquisition from the value M of the CCA counter and reduced to for 0 corresponding first time if the value for being also used to the CCA counter is greater than 0；
    Judging unit is used for the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
    Wherein, M is the integer more than or equal to 0, and less than or equal to N.
  10. Device according to claim 7, which is characterized in that further include: detection module and sending module；Wherein,
    The detection module, for the CCA detection to the secondary carrier；
    The sending module, for sending current subframe to the reception side apparatus by the main carrier；
    Then the judgment module includes:
    Acquiring unit, for starting the detection module and being detected to the CCA of the secondary carrier, and the value of CCA counter is set to random number N during the sending module sends the current subframe to the reception side apparatus by the main carrier；
    The acquiring unit is also used to calculate acquisition from the value N of the CCA counter and reduced to for 0 corresponding third time；
    Judging unit is used for the third time and the second time, wherein second time is to detect that current subframe terminates the remaining time from starting CCA in the current subframe of the main carrier；If the third time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；
    Wherein, N is integer, and is greater than 0.
  11. A kind of signal transmitting apparatus based on CA characterized by comprising
    Receiving module, for receiving the subframe for sending side apparatus and sending by main carrier；
    Detection module, if, according to the indication signal, the signal for whether having the sending side equipment to send in secondary carrier detected for carrying indication signal in the received subframe of the receiving module.
  12. Device according to claim 11, which is characterized in that the signal for whether having the sending side equipment to send in the secondary carrier do not detected if being also used to not carry indication signal in the received subframe of the receiving module for the detection module.
  13. A kind of transmission side apparatus characterized by comprising
    Processor needs detecting state for judging whether secondary carrier is in reception side apparatus；
    The processor needs detecting state if being also used to the secondary carrier and being in reception side apparatus, generates indication signal, and the indication signal is carried in the subframe of main carrier；
    Transmitter, for sending the subframe to side apparatus is received by the main carrier, whether so that the reception side apparatus is according to the indication signal, detecting has the signal for sending side apparatus transmission in the secondary carrier.
  14. Transmission side apparatus according to claim 13, which is characterized in that the processor, the value for being also used to assess available channel CCA counter are set to random number N；
    The processor is also used to carry out CCA detection to the secondary carrier, if testing result is that the secondary carrier is not occupied, then the value of the CCA counter is subtracted 1, and this step is repeated, until sending signal in the secondary carrier when value of the CCA counter is 0；Wherein, N is integer, and is greater than 0.
  15. Transmission side apparatus according to claim 14, which is characterized in that the processor is also used to obtain the value M of the CCA counter when sending the current subframe by the main carrier；If the value of the CCA counter is greater than 0, acquisition is calculated from the value M of the CCA counter and reduced to for 0 corresponding first time；Compare the first time and the second time, wherein second time is the current subframe of the main carrier remaining time；If the first time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；Wherein, M is the integer more than or equal to 0, and less than or equal to N.
  16. Transmission side apparatus according to claim 13, it is characterized in that, the processor, is also used to during sending the current subframe to the reception side apparatus by the main carrier, start and the CCA of the secondary carrier is detected, and the value of CCA counter is set to random number N；It calculates to obtain from the value N of the CCA counter and reduced to for 0 corresponding third time；Compare the third time and the second time, wherein second time is to detect that current subframe terminates the remaining time from starting CCA in the current subframe of the main carrier；If the third time is less than or equal to second time, judge that the secondary carrier is in the reception side apparatus and needs detecting state；Wherein, N is integer, and is greater than 0.
  17. A kind of reception side apparatus characterized by comprising
    Receiver, for receiving the subframe for sending side apparatus and sending by main carrier；
    Processor, if, according to the indication signal, the signal for whether having the sending side equipment to send in the secondary carrier detected for carrying indication signal in the received subframe of the receiver.
  18. Reception side apparatus according to claim 17, which is characterized in that the signal for whether having the sending side equipment to send in the secondary carrier do not detected if being also used to not carry indication signal in the received subframe of the receiver for the processor.
CN201480084241.7A 2014-12-30 2014-12-30 Method for transmitting signals, device and equipment based on CA Pending CN107113631A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140341018A1 (en) * 2013-05-20 2014-11-20 Qualcomm Incorporated Techniques for selecting subframe type or for interleaving signals for wireless communications over unlicensed spectrum

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Publication number Priority date Publication date Assignee Title
US20140341018A1 (en) * 2013-05-20 2014-11-20 Qualcomm Incorporated Techniques for selecting subframe type or for interleaving signals for wireless communications over unlicensed spectrum

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3RD GENERATION PARTNERSHIP PROJECT;TECHNICAL SPECIFICATION GROUP: "<Study on Licensed-Assisted Access to Unlicensed Spectrum;(Release 13)>", <3GPP TR 36.889 V0.0.2> *
ALCATEL-LUCENT SHANGHAI BELL, ALCATEL-LUCENT: "<LBT Enhancements for Licensed-Assisted Access>", <3GPP TSG RAN WG1 MEETING #79,R1-144701> *

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Application publication date: 20170829