CN108605230A

CN108605230A - A kind of clear channel assessment and terminal

Info

Publication number: CN108605230A
Application number: CN201680081120.6A
Authority: CN
Inventors: 郑娟; 官磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Shenzhen Shangge Intellectual Property Service Co ltd; Zhuji Yuanchang Information Technology Consulting Service Department
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2018-09-28
Anticipated expiration: 2036-02-05
Also published as: CN108605230B; WO2017133008A1

Abstract

The embodiment of the present invention discloses a method for estimating an idle channel. The method includes: evaluating whether the license-exempt spectrum resource is idle based on the first channel evaluation standard within a first preset time period; if it is idle, determining the second channel evaluation standard A channel evaluation standard for evaluating whether the license-exempt spectrum resource is idle; or, if not idle, determining the third channel evaluation standard as the channel evaluation standard for evaluating whether the license-exempt spectrum resource is idle, the second channel evaluation standard is higher than the first channel evaluation standard The channel evaluation standard is easier to evaluate the free license-exempt spectrum resource, and the third channel evaluation standard is more difficult to evaluate the free license-exempt spectrum resource than the first channel evaluation standard; it is evaluated whether the license-free spectrum resource is free through the determined channel evaluation standard, And when it is estimated that the license-free spectrum resource is idle, the uplink data is sent to the network device through the license-free spectrum resource. By adopting the method, the license-free spectrum resources can be used more reasonably.

Description

A kind of clear channel assessment and terminal

Technical field

The present invention relates to field of communication technology more particularly to a kind of clear channel assessment and terminals.

Background technique

Long term evolution (Long-term Evolution, LTE the equipment in) can polymerize (Carrier Aggregation by carrier wave, CA mode) is using the carrier wave in licensed band as main member carrier (Primary Component Carrier,) or main plot (Primary Cell PCC, PCell), using the carrier wave exempted from licensed band as secondary member carrier (Secondary Component Carrier, SCC the communication efficiency of equipment) or in secondary cell (Secondary Cell, SCell) Lai Tigao LTE.Base station in either LTE sends downlink data or terminal (such as user equipment (User Equipment using licensed spectrum resource (exempting from the carrier wave in licensed band) is exempted from, UE)) licensed spectrum resource transmission upstream data is exempted from use, it requires to first pass through listem-before-talk (listen-before-talk, LBT) mechanism exempts from whether licensed spectrum resource is idle to assess this, can get this if evaluating this and exempting from the licensed spectrum resource free time and exempts from access right of the licensed spectrum resource in specific time.

Base station evaluate exempt from licensed spectrum resource space idle can based on this exempt from licensed spectrum resource send downlink data, and terminal will also send upstream data evaluating this and exempt from licensed spectrum resource space idle sometimes according to the uplink scheduling of source base station, terminal will send upstream data when reaching the time of uplink scheduling instruction, it is necessary to rob in time in the time of the uplink scheduling and account for exempting from licensed spectrum resource；The prior art accounts for exempting from licensed spectrum resource by being easier to evaluate the channel estimating standard for exempting from the licensed spectrum resource free time for terminal configuration to guarantee that terminal can rob in time.This also results in terminal and base station, wireless access points (Wireless Access Point, AP), between the equipment such as website (Station, STA) can not fair use exempt from licensed spectrum resource.

Drawback of the prior art is that terminal do not have reasonable employment channel estimating standard cause to exempt from licensed spectrum resource using unreasonable.

Summary of the invention

It, can be reasonably using exempting from licensed spectrum resource the embodiment of the invention discloses a kind of clear channel assessment and terminal.

In a first aspect, the embodiment of the present invention provides a kind of clear channel assessment, this method comprises:

Whether terminal exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle；Specifically, the network equipment of dispatch service is provided (such as the terminal, base station) indicating that the terminal exempts from the sending instant that licensed spectrum resource sends upstream data by this by uplink scheduling signaling, it is that equipment is not present to exempt from licensed spectrum resource using this in listening in range for the base station.

If idle, the terminal by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard；Or, if not idle, then the terminal by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard, wherein, the probability for exempting from the licensed spectrum resource free time is evaluated based on the second channel evaluation criteria and goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, and the probability for exempting from the licensed spectrum resource free time is gone out based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation；Specifically, it is very likely that there is do not exempt from licensed spectrum resource using this by the other equipment of the network device services (such as wireless access point equipment) if not idle, in this case the terminal and the other equipment to this exempt from licensed spectrum resource using unfair, at this moment adjustable channel estimating standard keeps the terminal and the other equipment fair as far as possible to the use for exempting from licensed spectrum resource；If idle, show that this is exempted from licensed spectrum resource and listens in range that all there is no other equipment exempts from licensed spectrum resource using this in the base station and the terminal, at this moment adjustable channel estimating standard exempts from the efficiency of licensed spectrum resource to provide the terminal to this.

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal by the determination, and exempts from licensed spectrum resource described in network equipment transmission upstream data evaluating the licensed spectrum resource space idle of exempting from.

By executing above-mentioned steps, subsequent channel estimating standard is determined according to the result that the first channel estimating criterion evaluation goes out, exempt from whether licensed spectrum resource is idle by newly determining channel estimating standard to assess this, so that more reasonable to the use for exempting from licensed spectrum resource.

With reference to first aspect, in the first possible implementation of the first aspect, the terminal is first In preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource it is whether idle before, the method also includes:

The terminal receives the instruction message that the network equipment is sent, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.

Specifically, the first preset time period is limited in the MCOT used when the network equipment carries out downlink transfer, so that having more reference value to the subsequent channel estimating standard of determination based on the result that the first channel estimating criterion evaluation goes out.

With reference to first aspect or the first possible implementation of first aspect, exempting from licensed spectrum resource in the second possible implementation of the first aspect, described in channel estimating criterion evaluation of the terminal by the determination, whether the free time includes:

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal in first preset time period through the determination.

Specifically, whether assessing this by newly determining channel estimating standard in time, to exempt from licensed spectrum resource idle, so that assessment result is more accurate.

With reference to first aspect, or the first possible implementation of first aspect, or second of possible implementation of first aspect, in a third possible implementation of the first aspect, the terminal exempts from licensed spectrum resource whether the free time includes: in the first preset time period based on the first channel estimating criterion evaluation

Whether the terminal exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle in the first scheduled transmission time unit；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal by the determination, and evaluate it is described exempt from licensed spectrum resource space idle by it is described exempt from licensed spectrum resource and send upstream data to the network equipment include:

It is whether idle in the second scheduled transmission time unit to exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal in first preset time period based on the determination, and described exempt from licensed spectrum resource space idle evaluating in the second transmission time unit and exempts from licensed spectrum resource by described Upstream data is sent, the second transmission time unit is after the first transmission time unit.

With reference to first aspect, or the first possible implementation of first aspect, or second of possible implementation of first aspect, or the third possible implementation of first aspect, in a fourth possible implementation of the first aspect, the terminal exempts from licensed spectrum resource whether the free time includes: in the first preset time period based on the first channel estimating criterion evaluation

The terminal executed in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.

Specifically, final assessment result is determined based on the result that the first channel estimating standard is assessed is used for multiple times, reduce the error of assessment result.

With reference to first aspect, or the first possible implementation of first aspect, or second of possible implementation of first aspect, or the third possible implementation of first aspect, or the 4th kind of possible implementation of first aspect, in the fifth possible implementation of the first aspect:

Second channel evaluation criteria is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the terminal

The terminal by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

Third channel estimating standard is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the terminal

The terminal by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.

Specifically, for newly determining channel estimating standard setting term of validity, avoid terminal some time in too easy rob account for exempting from licensed spectrum resource, or some time in too it is difficult get exempt from licensed spectrum resource and cause this exempt from licensed spectrum resource using unreasonable.

Second aspect, the embodiment of the present invention provide a kind of terminal, which includes:

First assessment unit, it is whether idle for exempting from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period；

Determination unit, when result for assessing in first assessment unit is idle, by second channel evaluation criteria be determined as exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；Or, result for being assessed in first assessment unit when being idle the terminal by third channel estimating standard be determined as exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard, wherein, the probability for exempting from the licensed spectrum resource free time, which is evaluated, based on the second channel evaluation criteria goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, go out the probability for exempting from the licensed spectrum resource free time based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation；

Second assessment unit, whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation for determining by the determination unit, and exempts from licensed spectrum resource described in network equipment transmission upstream data evaluating the licensed spectrum resource space idle of exempting from.

By running said units, subsequent channel estimating standard is determined according to the result that the first channel estimating criterion evaluation goes out, exempt from whether licensed spectrum resource is idle by newly determining channel estimating standard to assess this, so that more reasonable to the use for exempting from licensed spectrum resource.

In conjunction with second aspect, in the first possible implementation of the second aspect, the terminal further include:

Receiving unit, for first assessment unit exempted from the first preset time period based on the first channel estimating criterion evaluation licensed spectrum resource it is whether idle before, receive the instruction message that the network equipment is sent, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.

In conjunction with second aspect, or the first possible implementation of second aspect, in a second possible implementation of the second aspect, whether idle exempt from licensed spectrum resource described in the channel estimating criterion evaluation that second assessment unit is determined by the determination unit specifically:

Second assessment unit passes through the channel estimating mark of the determination in first preset time period Whether idle exempt from licensed spectrum resource described in quasi- assessment.

In conjunction with second aspect perhaps the first possible implementation of second aspect or second of possible implementation of second aspect, in the third possible implementation of the second aspect:

First assessment unit is specifically used for, and whether based on the first channel estimating criterion evaluation exempt from licensed spectrum resource in the first preset time period idle in the first scheduled transmission time unit；

Second assessment unit is specifically used for, it is whether idle in the second scheduled transmission time unit to exempt from licensed spectrum resource described in channel estimating criterion evaluation in first preset time period based on the determination, and exempt from licensed spectrum resource transmission upstream data described in the second transmission time unit evaluating the licensed spectrum resource space idle of exempting from, the second transmission time unit is after the first transmission time unit.

In conjunction with second aspect, or the first possible implementation of second aspect, or second of possible implementation of second aspect, or the third possible implementation of second aspect, in the fourth possible implementation of the second aspect, first assessment unit be specifically used in the first preset time period execute based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.

In conjunction with second aspect, or the first possible implementation of second aspect, or second of possible implementation of second aspect, or the third possible implementation of second aspect, or the 4th kind of possible implementation of second aspect, in a fifth possible implementation of the second aspect:

Second channel evaluation criteria is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the determination unit

The determination unit by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

Third channel estimating standard is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the determination unit

The determination unit by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.

The third aspect, the embodiment of the present invention provide a kind of terminal, which includes output device, memory and processor, and the processor calls the clear channel assessment (CCA) program in the memory, for performing the following operations:

Whether based on the first channel estimating criterion evaluation, to exempt from licensed spectrum resource idle in the first preset time period；

If idle, by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard；Or, if not idle, then by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard, wherein, the probability for exempting from the licensed spectrum resource free time is evaluated based on the second channel evaluation criteria and goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, and the probability for exempting from the licensed spectrum resource free time is gone out based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation by the determination, and evaluate it is described exempt from licensed spectrum resource space idle by the output device by the licensed spectrum resource of exempting to network equipment transmission upstream data.

By running above procedure, terminal determines subsequent channel estimating standard according to the result that the first channel estimating criterion evaluation goes out, exempt from whether licensed spectrum resource is idle by newly determining channel estimating standard to assess this, so that more reasonable to the use for exempting from licensed spectrum resource.

In conjunction with the third aspect, in the first possible implementation of the third aspect, the terminal further includes input unit；The processor is also used to, in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource it is whether idle before, receive what the network equipment was sent by above-mentioned input unit Instruction message, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, whether idle exempt from licensed spectrum resource in the second possible implementation of the third aspect, described in channel estimating criterion evaluation of the processor by the determination specifically:

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor in first preset time period through the determination.

In conjunction with the third aspect, or the first possible implementation of the third aspect, or second of possible implementation of the third aspect, in the third possible implementation of the third aspect, whether idle the processor exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period specifically:

Whether the processor exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle in the first scheduled transmission time unit；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor by the determination, and evaluate it is described exempt from licensed spectrum resource space idle by the output device by the licensed spectrum resource of exempting to network equipment transmission upstream data specifically:

It is whether idle in the second scheduled transmission time unit to exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor in first preset time period based on the determination, and exempt from licensed spectrum resource transmission upstream data described in by the output device in the second transmission time unit evaluating the licensed spectrum resource space idle of exempting from, the second transmission time unit is after the first transmission time unit.

In conjunction with the third aspect, or the first possible implementation of the third aspect, or second of possible implementation of the third aspect, or the third possible implementation of the third aspect, in the fourth possible implementation of the third aspect, whether idle the processor exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period specifically:

The processor executed in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.

In conjunction with the third aspect, or the first possible implementation of the third aspect, or second of possible implementation of the third aspect, or the third possible implementation of the third aspect, or the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation of the third aspect:

The processor by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard specifically:

The processor by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

The processor by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard specifically:

The processor by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.

In some implementations of first aspect, second aspect and the third aspect, the duration of first preset time period is less than or equal to maximum channel and occupies duration MCOT.

Specifically, the duration of the first preset time period is limited in MCOT, so that having more reference value to the subsequent channel estimating standard of determination based on the result that the first channel estimating criterion evaluation goes out.

In some implementations of first aspect, second aspect and the third aspect, the first transmission time unit is first transmission time unit that the terminal is scheduled.

Specifically, will be before assessment exempts from licensed spectrum resource whether Kong Xian time is limited to first transmission time unit, so that the result gone out based on the first channel estimating criterion evaluation is to the subsequent channel estimating standard of determination with more reference value.

In some implementations of first aspect, second aspect and the third aspect, the first channel estimating standard, the second channel evaluation criteria and the third channel estimating standard include channel competition window length and energy threshold；Based on comprising the long shorter channel estimating criterion evaluation of the channel competition window go out it is described exempt from that the probability of licensed spectrum resource free time is bigger, or based on comprising the bigger channel estimating criterion evaluation of the energy threshold go out described in exempt from the probability of licensed spectrum resource free time bigger.

By implementing the embodiment of the present invention, terminal determines subsequent channel estimating standard according to the result that the first channel estimating criterion evaluation goes out, exempt from whether licensed spectrum resource is idle by newly determining channel estimating standard to assess this, so that more reasonable to the use for exempting from licensed spectrum resource.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, the drawings to be used in the embodiments are briefly described below.

Fig. 1 is a kind of flow diagram of clear channel assessment disclosed by the embodiments of the present invention；

Figure 1A is a kind of schematic diagram of a scenario of first preset time period disclosed by the embodiments of the present invention；

Figure 1B is the schematic diagram of a scenario of another the first preset time period disclosed by the embodiments of the present invention；

Fig. 1 C is the schematic diagram of a scenario of another the first preset time period disclosed by the embodiments of the present invention；

Fig. 1 D is a kind of schematic diagram of a scenario for sending upstream data disclosed by the embodiments of the present invention；

Fig. 1 E is that disclosed by the embodiments of the present invention a kind of there are the schematic diagram of a scenario of other equipment；

Fig. 2 is a kind of structural schematic diagram of terminal disclosed by the embodiments of the present invention；

Fig. 3 is the structural schematic diagram of another terminal disclosed by the embodiments of the present invention.

Specific embodiment

The embodiment of the present invention is applied to using the system for exempting from licensed spectrum resource, such as, license auxiliary access (Licensed-Assisted Access, LAA)-LTE system (i.e. by licensed band with exempt from licensed band by CA mode together with the LTE system that uses), be deployed in by licensed band and the system for exempting to use together with licensed band, independently by non-CA mode and to exempt from system in licensed band (for example, exempting from licensed spectrum Independent LTE system (Standalone LTE system over unlicensed spectrum)), WLAN (Wireless Local Area Networks, WLAN), global system for mobile communications (Global System for Mobile Communication, GSM), employing code division multiple access (Code Division Multiple Access, CDMA) system of technology, use wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) technology System etc..Terminal described in the embodiment of the present invention is the handheld device in above system with wireless communication function, mobile unit, wearable device, calculates equipment or be connected to other processing equipments of radio modem, and various forms of user equipment (User Equipment, UE), mobile station (Mobile station, MS), terminal (Terminal Equipment), relaying (Relay) etc..The network equipment described in the embodiment of the present invention can receive the upstream data that above-mentioned terminal is sent, and can also send downlink data to the terminal.

It is described in detail below in conjunction with attached drawing technical solution in the embodiment of the present invention of the invention.

Referring to Figure 1, Fig. 1 is a kind of flow diagram of channel evaluation method provided in an embodiment of the present invention.This method includes but is not limited to following steps:

Step S101: the network equipment sends instruction information to terminal, indicates that the terminal sends upstream data by exempting from licensed spectrum resource.

Specifically, the instruction information includes but is not limited to uplink scheduling signaling, it is described so that the instruction information is uplink scheduling signaling as an example below, the uplink scheduling signaling can send upstream data in which transmission time unit with instruction terminal, the transmission time unit can be integer subframe, perhaps integer half of subframe (half of subframe can be seen as a time slot) or integer symbol etc.；Terminal use is further indicated in the uplink scheduling signaling exempts from licensed spectrum resource transmission upstream data.By taking CA as an example, the network equipment can configure multiple serving cells to terminal, including a main plot (Primary Cell,) and at least one secondary cell (Secondary Cell PCell, SCell), licensed spectrum resource transmission data are exempted from wherein at least one cell use, including terminal exempts from licensed spectrum resource by this and sends upstream data.The uplink scheduling signaling instruction terminal use exempts from licensed spectrum resource and sends upstream data, it is possible to understand that are as follows: uplink scheduling signaling instruction terminal transmits upstream data in some cell, and the working frequency range of some cell is to exempt from licensed spectrum resource.It should be noted that indicating that the terminal sends upstream data by exempting from licensed spectrum resource, the terminal is not represented and is bound to exempt to send upstream data in licensed spectrum resource at this, if sending upstream data will also see based on above-mentioned first letter The result that road evaluation criteria is assessed.

Under normal conditions, the sending time point that licensed spectrum resource sends upstream data is exempted from using this by instruction information instruction terminal in the network equipment, is listened in range in the signal of the network equipment and using this exempts from licensed spectrum resource there is no other equipment.

Step S102: terminal receives the instruction information that the network equipment is sent, and in the first preset time period based on the instruction of the first channel estimating criterion evaluation uplink scheduling signaling whether exempt from licensed spectrum resource idle.

Terminal assessment exempt from licensed spectrum resource whether Kong Xian detailed process can be with are as follows: using instruction information instruction exempt from licensed spectrum resource transmission upstream data before, according to a length of q of contention window defined in current channel estimating standard (q is the natural number greater than 1), a random integers N is generated within the scope of from 1 to q, then to listen to whether the energy that time slot exempts from licensed spectrum resource as granularity Detection reaches preset energy threshold, when often having the energy of a time slot lower than the energy threshold, N is subtracted 1, it is on the contrary, N is remained unchanged, after N is kept to 0, it is idle to show that this exempts from licensed spectrum resource.It is related to a variety of channel estimating standards in embodiments of the present invention, is used to assess this before data whether exempt from licensed spectrum resource idle sending by exempting from licensed spectrum resource, sends the data if idle；There are different contention windows length and/or energy thresholds between multiple channel estimating standard, based on exempting from the whether idle description of license assessment resource to assessment above it can be concluded that, the contention window of definition grows shorter channel estimating criterion evaluation, and this exempts from the probability of licensed spectrum resource free time more greatly (if other conditions are identical), or the bigger channel estimating criterion evaluation of energy threshold of definition goes out that the probability for exempting from license assessment resource free time is bigger (if other conditions are identical), and above-mentioned first channel estimating standard is one of a variety of channel estimating standards.In embodiments of the present invention, including the long channel estimating standard of contention window it also will be understood that at the channel estimating standard including random back contention window.Furthermore, whether licensed spectrum resource is exempted from terminal assessment idle, it can also be using the channel estimating standard for not including random back contention window, such as the terminal can determine whether this exempts from licensed spectrum resource idle based on the intercepted result in the predefined period, the predefined period for example may include that integer is delicate, such as one-shot LBT mechanism.

Further, contention window it is long to can be random competition window described above long, such as N；It is long to be also possible to maximum contention window described above, such as q；For example, the value of the long q of the maximum contention window of several different service types can be respectively 7,15,63,1023, then the contention window in the embodiment of the present invention is long Q can be taken, the value between 0~q or 1~q can also be taken at random.

Above-mentioned first preset time period can be arranged according to actual needs, in a kind of optional scheme, this is seized in the terminal to exempt from before licensed spectrum resource (assess this whether idle exempt from licensed spectrum resource) carries out data transmission, the network equipment seizes this and exempts from licensed spectrum resource and exempt from licensed spectrum resource transmission downlink data by this, first preset time period exempts from maximum channel holding time (the Maximum Channel Occupied Time of licensed spectrum resource in the network equipment using this, MCOT in) or in the corresponding time range of MCOT, the network equipment can exempt from licensed spectrum resource without determining that it is whether idle that this exempts from licensed spectrum resource again using this in the MCOT or in the corresponding time range of MCOT, such as the network equipment is commented by channel Estimate standard and determines whether this exempts from licensed spectrum resource idle, if it is determined that idle, so the network equipment can be used this and exempt from licensed spectrum resource transmission data and be no more than the corresponding time span of MCOT, such as 2ms or 3ms or 8ms or 10ms using the maximum time for exempting from licensed spectrum resource.It can be understood that, the corresponding time range of MCOT can be indicated with the length of the starting point of the corresponding time range of MCOT and the corresponding time range of MCOT, the starting point of the corresponding time range of MCOT can be the network equipment rob account for this exempt from licensed spectrum resource start transmit data time point, the length of the corresponding time range of MCOT can be MCOT corresponding length, such as integer millisecond etc..The network equipment may by the MCOT or in the corresponding time range of the MCOT in part-time send downlink data, so terminal can remaining time range in the MCOT or in the corresponding time range of the MCOT based on the first channel estimating criterion evaluation uplink scheduling signaling indicate whether exempt from licensed spectrum resource idle, concrete scene is as shown in Figure 1A, the network equipment is robbed this accounted for and is exempted from the maximum channel holding time 111 of licensed spectrum resource comprising remaining time 112, so terminal within remaining time 112 based on the first channel estimating criterion evaluation this whether exempt from licensed spectrum resource idle.In embodiments of the present invention, the first preset time period can be Figure 1A exemplary remaining time 112, be also possible to the time in Figure 1A exemplary remaining time 112 included.

First preset time period can be by any two parameter definition in the duration of the initial time of the first preset time period, the end time of the first preset time period and the first preset time period.The end time of first preset time period can be the end time of MCOT, and the initial time of the first preset time period can be the network equipment in the end time for exempting to send downlink data in licensed spectrum resource.Terminal can also pass through blind examination It surveys, and/or the network equipment indicates, and/or the mode of standard protocol specification obtains the corresponding time range of the first preset time period.Correspondingly, the corresponding time range of the first preset time period can be by any two parameter definition in the duration of the initial time of the first preset time period, the end time of the first preset time period and the first preset time period.Optionally, the network equipment can be by the corresponding time range of the first preset time period by indicating that information is sent to terminal, including any two parameter in the duration of the initial time of the first preset time period, the end time of the first preset time period and the first preset time period is sent to terminal, can also by other means, the embodiment of the present invention is not specifically limited.Such as the network equipment sends the end position of instruction information instruction MCOT to the terminal, terminal combines the network equipment to can determine first preset time period in the end time (end time can also be sent instruction acquisition of information by the network equipment) for exempting from licensed spectrum resource downlink data transmission.Or the terminal can also determine the time range where the first preset time period by determining the corresponding time range of MCOT.Terminal can obtain the corresponding time range of MCOT by way of blind Detecting, and/or network equipment instruction, and/or standard protocol specification.The corresponding time range of MCOT can be by indicating any two parameter in the duration of the end time of the initial time of the corresponding time range of the MCOT, the corresponding time range of MCOT time range corresponding with the MCOT.Terminal can obtain the initial time of the corresponding time range of MCOT, any two parameter in the duration of the end time time range corresponding with the MCOT of the corresponding time range of the MCOT by way of blind Detecting, and/or network equipment instruction, and/or standard protocol specification, and then determine the corresponding time range of MCOT.Such as terminal can determine that the network equipment exempts from the initial time of licensed spectrum resource data transmission at this by blind Detecting, according to this initial time, it can determine the initial time of the corresponding time range of MCOT, the corresponding time span of MCOT (duration of the corresponding time range of MCOT) is determined further according to the mode of network equipment instruction and/or standard protocol specification, and then it is assured that the network equipment exempts from the corresponding time range of the corresponding MCOT of data transmission in licensed spectrum resource at this, and then can determine the time range where first preset time period.If terminal is according to uplink scheduling signaling, determine that scheduled transmission time unit is exempted from data in licensed spectrum resource and transmitted in the corresponding time range of corresponding MCOT in the time range where the first preset time period or in the network equipment at this, then whether the terminal can idle based on licensed spectrum resource is exempted from described in the first channel estimating criterion evaluation, further, based on exempt from described in the first channel estimating criterion evaluation licensed spectrum resource it is whether idle after, can also be in the network equipment at this Exempt from data in licensed spectrum resource to transmit in the time range of corresponding MCOT, it is whether idle based on licensed spectrum resource is exempted from described in second channel evaluation criteria and/or third channel estimating criterion evaluation.

In another optional scheme, which is exempted from time range corresponding to a transmission opportunity (TXOP, Transmission Opportunity) for licensed spectrum resource in the network equipment using this.In TXOP, the network equipment can exempt to send downlink data in licensed spectrum resource and/or receive upstream data at this, and before TXOP, whether the network equipment needs to exempt from licensed spectrum resource by the determination of channel estimating standard idle, if idle, this can be used and exempts from licensed spectrum resource.In TXOP, when the network equipment exempts from licensed spectrum resource transmission data by this, do not need to determine that this exempts from the state of licensed spectrum resource (busy or idle) based on channel estimating standard again.Optionally, the length of the corresponding time range of TXOP is not more than the length of MCOT.Terminal can determine the corresponding range of the first preset time period by determining the corresponding time range of TXOP.Terminal determines that the specific embodiment of the corresponding time range of TXOP can determine the corresponding time range of MCOT with reference terminal.Such as terminal can obtain the corresponding time range of TXOP by way of blind Detecting, and/or network equipment instruction, and/or standard protocol specification.The corresponding time range of TXOP can be by indicating any two parameter in the duration of the end time of the initial time of the corresponding time range of the TXOP, the corresponding time range of TXOP time range corresponding with the TXOP.Terminal can obtain the initial time of the corresponding time range of TXOP, any two parameter in the duration of the end time time range corresponding with the TXOP of the corresponding time range of the TXOP by way of blind Detecting, and/or network equipment instruction, and/or standard protocol specification, and then determine the corresponding time range of TXOP.Such as terminal can determine that the network equipment exempts from the initial time of licensed spectrum resource data transmission at this by blind Detecting, according to this initial time, it can determine the initial time of the corresponding time range of TXOP, the corresponding time span of TXOP is determined further according to the mode of network equipment instruction and/or standard protocol specification, and then it is assured that the network equipment exempts from data in licensed spectrum resource and transmit the time range of corresponding TXOP at this, and then can determine the time range where first preset time period.If terminal is according to uplink scheduling signaling, determine that scheduled transmission time unit exempts from the time range that data in licensed spectrum resource transmit corresponding TXOP at this in the network equipment, then whether the terminal can idle based on licensed spectrum resource is exempted from described in the first channel estimating criterion evaluation, further, based on exempt from described in the first channel estimating criterion evaluation licensed spectrum resource it is whether idle after, licensed spectrum can also be exempted from this in the network equipment Whether data are transmitted in the time range of corresponding TXOP in resource, idle based on licensed spectrum resource is exempted from described in second channel evaluation criteria and/or third channel estimating criterion evaluation.

In another optional scheme, the duration of first preset time period is equal to the corresponding maximum channel of the terminal and occupies duration MCOT (MCOT size defined in distinct device may be different)；The starting point of first preset time period can for the network equipment it is described exempt from licensed spectrum resource terminate downlink data transmission at the time of, concrete scene is as shown in Figure 1B, and the duration of the first preset time period 113 is equal with the MCOT in the terminal.In the case, for the terminal it needs to be determined that the network equipment is in the finish time (can be in such a way that the network equipment indicates) for exempting to send downlink data in licensed spectrum resource, terminal can determine that the length of MCOT determines first preset time period according to the instruction or standard agreement of the network equipment.Alternatively, the starting point of first preset time period is that the network equipment is exempted from licensed spectrum resource after end downlink data transmission described, the starting point of scheduled n-th transmission time unit, wherein N is natural number, and as N=1, concrete scene is as shown in Figure 1 C.In the case, the terminal can determine the network equipment in the finish time for exempting to send downlink data in licensed spectrum resource according to the instruction message that the network equipment is sent, terminal determines the position of the transmission time unit of uplink scheduling according to the instruction of the network equipment, then the terminal can be according to the position of the transmission time unit of the uplink scheduling of the finish time and determination of the downlink data transmission, determine the starting point of the first preset time period, then the length of MCOT is determined further according to the instruction of the network equipment or standard agreement, and then determine the corresponding transmission duration of the first preset time period.It should be noted that in the case, whether which can exempt from licensed spectrum resource based on the first channel estimating criterion evaluation before first transmission time unit that the first preset time period includes idle.It is further to note that in the case, being not necessarily present transmitting uplink data in scheduled transmission time unit, this will depend on the assessment result of channel estimating standard.Alternatively, the starting point of first preset time period is that the network equipment is exempted from licensed spectrum resource after end downlink data transmission described, terminal m-th data transmit the starting point of corresponding unit of transfer, and wherein M is natural number.Here, the transmission of m-th data includes that terminal exempts from the m-th data transmitted in the transmission time unit in licensed spectrum resource at this；When with M=1, if terminal, which determines that first transmission time unit is corresponding in first transmission time unit, exempts from the licensed spectrum resource free time, so terminal can send upstream data using licensed spectrum resource is exempted from first transmission time unit, and it is corresponding just to correspond to m-th data transmission in this example for the starting point of first transmission time unit at this time The starting point of unit of transfer, by taking Fig. 1 C as an example, it is assumed that M=1, if the terminal is determined according to channel estimating standard can transmit data in subframe 1, the starting point of subframe 1 is the starting point that corresponding 1st data transmit corresponding unit of transfer；If the terminal is determined according to channel estimating standard cannot transmit data in subframe 1 but can transmit data in subframe 2, corresponding 1st data of the starting point of subframe 2 transmit the starting point of corresponding unit of transfer.As described above, this will not be repeated here for method of determination.

In another optional scheme, the duration of first preset time period is equal to the corresponding duration of transmission time unit that the terminal is continuously dispatched.Such as the network equipment continuously transmits 1 or 2 instruction information and indicates the terminal in two continuous transmission time unit transmitting datas for exempting from licensed spectrum resource, then the terminal can be using the total duration of the continuous transmission time unit as the duration of first preset time period.The starting point of first preset time period can be the network equipment in the starting point for exempting from the k-th transmission time unit that the finish time of end downlink data transmission or the terminal are scheduled in licensed spectrum resource, and wherein K is natural number.

Further, whether Kong Xian process may include following two situation to licensed spectrum resource of exempting from of the terminal based on the first channel estimating criterion evaluation instruction information instruction in first preset time period:

The first situation: whether terminal exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in first preset time period idle in the first scheduled transmission time unit, in other words, when the terminal sends upstream data by the first transmission time unit according to uplink scheduling in first preset time period, whether assessing this, to exempt from licensed spectrum resource idle, the first transmission time unit be which transmission time unit in the first preset time period of uplink scheduling herein with no restriction, preferably, the first transmission time unit is first scheduled transmission time unit in above-mentioned first preset time period.

Second situation: terminal executed in first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource in scheduled different transmission time units whether Kong Xian step at least twice.Specifically, there are the transmission time units of multiple uplink schedulings in first preset time period, before terminal often sends upstream data in a transmission time unit, the assessment that licensed spectrum resource carries out idle state all is exempted to this, terminal determines whether this exempts from licensed spectrum resource idle according to assessment result at least twice.For example, there are 3 scheduled subframes (transmission time unit) in first preset time period, if terminal before the 1st subframe transmission upstream data, before the 2nd subframe transmission upstream data with the 3rd subframe by sending Before row data, will to exempt from licensed spectrum resource carry out idle state assessment, assessment result before upstream data can so be sent by the result assessed before sending upstream data by subframe 1 and by subframe 2, which combines, judges that this exempts from whether licensed spectrum resource is idle, and it is idle to think that this exempts from licensed spectrum resource if evaluating the result for exempting from the licensed spectrum resource free time and being more than preset ratio.It should be noted that, it is whether idle that licensed spectrum resource is exempted from into the corresponding assessment result combination determination of multiple transmission time units, it is intended only as a kind of means whether subsequent channel evaluation criteria adjusts, the corresponding assessment result of multiple transmission time units will be utilized by not representing, and whether determine can send upstream data in each transmission time unit.By taking above content as an example, if the first preset time period is interior, there are 3 scheduled subframes, if the assessment result before sending upstream data by subframe 1 is to determine that is be evaluated exempts from the licensed spectrum resource free time, can pass through subframe 1 and send upstream data；If the assessment result before sending upstream data by subframe 2 is to determine that is be evaluated exempts from the licensed spectrum resource free time, upstream data can be sent by subframe 2.Assessment result before being also based on before sending upstream data by subframe 1 simultaneously and sending upstream data by subframe 2 takes whether exempt from licensed spectrum resource idle into consideration.

Optionally, when using multiple transmission time units corresponding assessment result, weight of the corresponding assessment result of each transmission time unit in the result comprehensively considered can be identical, can not also be identical.Terminal can exempt from the distance that licensed spectrum resource sends the finish time of downlink data by this according to range network device, determine the weight of the corresponding assessment result of each transmission time unit.For example, distance is by this, to exempt from weight of the closer corresponding assessment result of transmission time unit of licensed spectrum resource downlink data transmission end position in synthesis result bigger, otherwise smaller.As shown in figure iD, the weight of assessment result in period 122 is higher than the assessment result in the period 123, the weight of assessment result in period 123 is higher than the assessment result in the period 124, assessment result in period 122, the assessment result in the period 123 and the assessment result in the period 124 according to respective weight it is comprehensive after, obtained result be assess this exempt from licensed spectrum resource whether Kong Xian final result.

If exempting from the licensed spectrum resource free time based on the instruction of the first channel estimating criterion evaluation instruction information in the first preset time period, step S103 is executed；Alternatively,

If in the first preset time period based on the instruction of the first channel estimating criterion evaluation instruction information to exempt from licensed spectrum resource not idle, execute step S104.

Step S103: by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard.

Specifically, terminal will be used to assess to exempt from licensed spectrum resource whether Kong Xian channel estimating standard is determined as second channel evaluation criteria, so, SS later reevaluate this exempt from licensed spectrum resource it is whether idle when, so that it may assessed by the second channel evaluation criteria；Terminal evaluates the probability for exempting from the licensed spectrum resource free time by the second channel evaluation criteria, go out the probability for exempting from the licensed spectrum resource free time not less than by the first channel estimating criterion evaluation, specifically, such as, when the contention window defined in the second channel evaluation criteria is long long more shorter than contention window defined in the first channel estimating standard, or the energy threshold defined in the second channel evaluation criteria it is bigger than energy threshold defined in the first channel estimating standard when, it is bigger than going out the probability for exempting from the licensed spectrum resource free time by the first channel estimating criterion evaluation by the second channel evaluation criteria.When the first channel estimating standard is long identical with energy threshold with contention window in second channel evaluation criteria, it is identical which with the first channel estimating criterion evaluation is gone out by the second channel evaluation criteria.

It should be noted that, in embodiments of the present invention, the probability for exempting from the licensed spectrum resource free time, which is evaluated, based on the second channel evaluation criteria goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, want that the technical characteristic expressed includes, the assessment parameter setting that the second channel evaluation criteria includes is looser, such as duration and/or bigger energy threshold can be listened to using shorter, the assessment parameter setting or identical as the assessment parameter setting that the second channel evaluation criteria includes that the first channel estimating standard includes, or, the assessment parameter setting that the first channel estimating standard includes is compared with the assessment parameter setting that the second channel evaluation criteria includes, it is more stringent, such as compared with the second channel evaluation criteria, the first channel estimating standard Including assessment parameter need to listen to duration and/or smaller energy threshold using longer.It can be understood that, " evaluate the probability for exempting from the licensed spectrum resource free time based on the second channel evaluation criteria and go out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation " can be understood as, " duration of listening to that the second channel evaluation criteria includes listens to duration and/or described state energy threshold that second channel evaluation criteria includes and be not less than the energy threshold that (being less than or greater than) described first channel estimating standard includes no more than what (being less than or equal to) described first channel estimating standard included ".Such as the first channel estimating standard can be not LBT mechanism including random back contention window, the second channel evaluation criteria can be identical as the first channel estimating standard.Optionally, the first channel estimating standard and the second channel evaluation criteria all use one-shot LBT (not including the LBT mechanism of random back contention window).In another example it includes the LBT mechanism of random back contention window that the first channel estimating standard and the second channel evaluation criteria, which are all, but the long contention window for being equal to or more than the second channel evaluation criteria of the contention window of the first channel estimating standard is long.

In a kind of optional scheme, it is described by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard include: by second channel evaluation criteria be determined as in the second preset time period assess described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard；In other words, determine the second channel evaluation criteria for after new channel estimating standard, it is whether idle that above-mentioned licensed spectrum resource of exempting from can be assessed based on the second channel evaluation criteria in second preset time period, the second channel evaluation criteria can be not based on except second preset time period, and whether above-mentioned to exempt from licensed spectrum resource idle to assess.Further, which can determine according to actual needs, wouldn't be restricted herein.It optionally, include that the network equipment exempts from the downlink data transmission in licensed spectrum resource at this between second preset time period and the first preset time period.

It should be noted that, the network equipment by it is above-mentioned exempt from licensed spectrum resource send downlink data before, the idle state for exempting from licensed spectrum resource is assessed, it evaluates this and exempts from just to pass through this when licensed spectrum resource idle (listen in range in the signal of the network equipment and exempt from licensed spectrum resource using this without other equipment) and exempt from licensed spectrum resource and send the downlink data, the network equipment is during exempting from licensed spectrum resource transmission downlink data by this, the equipment that can be communicated with the network equipment will not use this to exempt from licensed spectrum resource and send data；Therefore, if above-mentioned terminal is when the network equipment exempts from licensed spectrum resource and sent downlink data by this, it evaluates this and exempts from the licensed spectrum resource free time, then show that the terminal nearby also exempts from licensed spectrum resource using this without equipment, at this time, terminal can using the second channel evaluation criteria as further evaluation this exempt from licensed spectrum resource whether Kong Xian channel estimating standard, account for this so that terminal can rob in time at the time of uplink scheduling and exempt from licensed spectrum resource.

Step S104: by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard.

Specifically, terminal will be used to assess to exempt from licensed spectrum resource whether Kong Xian channel estimating standard is determined as third channel estimating standard, so, SS later reevaluate this exempt from licensed spectrum resource it is whether idle when, so that it may assessed by the third channel estimating standard；Terminal goes out the probability for exempting from the licensed spectrum resource free time by the third channel estimating criterion evaluation, it is smaller than going out the probability for exempting from the licensed spectrum resource free time by the first channel estimating criterion evaluation, specifically, when contention window defined in the third channel estimating standard is long long longer than contention window defined in the first channel estimating standard, or energy threshold defined in the second channel evaluation criteria is than energy threshold more hour defined in the first channel estimating standard, it is smaller than going out the probability for exempting from the licensed spectrum resource free time by the first channel estimating criterion evaluation by the third channel estimating standard；

It should be noted that, in embodiments of the present invention, go out the probability for exempting from the licensed spectrum resource free time based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation, thinking the technical characteristic of expression is, assessment parameter setting in the third channel estimating standard is tightened up, such as duration and/or bigger energy threshold can be listened to using longer, the assessment parameter setting of the first channel estimating criterion evaluation is looser than the assessment parameter setting in the third channel estimating standard, such as compared with the third channel estimating standard, the first channel estimating standard needs to listen to duration and/or bigger energy threshold using shorter.It can be understood that, " go out the probability for exempting from the licensed spectrum resource free time based on the third channel estimating criterion evaluation and go out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation " can be understood as, " energy threshold that duration and/or the third channel estimating standard include of listening to that duration includes greater than the first channel estimating standard of listening to that the third channel estimating standard includes is less than the energy threshold that the first channel estimating standard includes ".Such as the first channel estimating standard can be do not include random back contention window LBT mechanism, the third channel estimating standard is the LBT mechanism for including random back contention window.Optionally, which is one shot LBT mechanism (not including the LBT mechanism of random back contention window), which is normal LBT mechanism (the LBT mechanism including random back contention window).In another example it includes the LBT mechanism of random back contention window that the first channel estimating standard and the third channel estimating standard, which are all, but the long contention window for being less than the third channel estimating standard of the contention window of the first channel estimating standard is long.

In a kind of optional scheme, it is described by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard include: by third channel estimating standard be determined as in third preset time period assess described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard；In other words, determine the third channel estimating standard for after new channel estimating standard, it is whether idle that above-mentioned licensed spectrum resource of exempting from can be assessed based on the third channel estimating standard in the third preset time period, the third channel estimating standard can be not based on except the third preset time period, and whether above-mentioned to exempt from licensed spectrum resource idle to assess.Further, which can determine according to actual needs, wouldn't be restricted herein.It optionally, include that the network equipment exempts from the downlink data transmission in licensed spectrum resource at this between the third preset time period and first preset time period.

It should be noted that, the network equipment send by it is above-mentioned exempt from licensed spectrum resource transmission downlink data before, the idle state for exempting from licensed spectrum resource is assessed, it evaluates this and exempts from just to pass through this when licensed spectrum resource idle (listen in range in the signal of the network equipment and exempt from licensed spectrum resource using this without other equipment) and exempt from licensed spectrum resource and send the downlink data, the network equipment is during exempting from licensed spectrum resource transmission downlink data by this, the equipment that can be communicated with the network equipment will not use this to exempt from licensed spectrum resource and send data；Therefore, if above-mentioned terminal is when the network equipment exempts from licensed spectrum resource and sent downlink data by this, evaluating this, to exempt from licensed spectrum resource not idle, then show that the terminal nearby has this not to be used in the equipment that the signal of the network equipment is listened in range and exempt from licensed spectrum resource, at this time if terminal also be easier to evaluate this exempt from licensed spectrum resource whether Kong Xian channel estimating standard, will lead to very unfair to the use for exempting from licensed spectrum resource.

Fig. 1 E is that provided in an embodiment of the present invention there are the schematic diagram of a scenario of other equipment；Wherein, terminal 131 is listened in range 134 in the signal of base station (network equipment) 132 and the signal of other equipment 133 is listened in range 135, range is not listened in the signal of other equipment 133 but listened in range in the signal of terminal 131 in base station 132, signal of the other equipment 133 also not in base station 132 is listened to range but is listened in range in the signal of terminal 131, when licensed spectrum resource is exempted from by this in base station 132 terminates downlink data transmission, signal in base station 132 listen to do not had in range 134 equipment using this exempt from licensed spectrum resource send data, but this, which may be used, in other equipment 133 exempts from licensed spectrum resource transmission data.If terminal 131 is subsequent this is also assessed with the first channel estimating standard exempt from whether licensed spectrum resource is idle (to be seized this and exempt from licensed spectrum Resource), then the other equipment 133 are exempted from by licensed spectrum resource whether the free time is inequitable using this is assessed.Especially being not at same services system in the other equipment 133 and the terminal 131, (there is no upstream data and downlink data transmissions i.e. between the other equipment 131 and the terminal 131, also do not dispatched by the same network equipment) when, exempt from the unfairness of licensed spectrum resource use it is more obvious.

Based on the above reasons, when the terminal by above-mentioned first channel estimating criterion evaluation go out this exempt from licensed spectrum resource it is not idle when, determine third channel estimating standard be further evaluation this exempt from licensed spectrum resource whether Kong Xian channel estimating standard so that the terminal and the other equipment exempt from the use justice as far as possible of licensed spectrum resource to this.

Step S105: whether the terminal assesses the licensed spectrum resource of exempting from by the channel estimating standard of the determination idle, and exempts from licensed spectrum resource transmission upstream data described in evaluating the licensed spectrum resource space idle of exempting from.

Specifically, after terminal has newly determined new channel estimating standard by step S103 or S104, if necessary to send upstream data, it is then whether idle by the newly determining above-mentioned licensed spectrum resource of exempting from of channel estimating criterion evaluation before sending the upstream data, licensed spectrum resource is exempted from by this if idle and sends the upstream data.It should be noted that exempting from licensed spectrum resource to send upstream data to include the component frequency exempted from by this in licensed spectrum resource by this in the embodiment of the present invention, or whole frequencies send the upstream data.

In a kind of optional scheme, when terminal needs to send upstream data in new transmission time unit, and the new transmission time unit in first preset time period when, assessed before sending the upstream data in the new transmission time unit by the channel estimating standard of the new determination it is above-mentioned exempt from whether licensed spectrum resource idle, licensed spectrum resource is exempted from by this in the new time tranfer unit if idle and sends the upstream data.

For example, the scheduled transmission time unit of terminal is followed successively by subframe 1, subframe 2 and subframe 3 from time order and function, and subframe 1, subframe 2 and subframe 3 are in above-mentioned first preset time period；Terminal sends before upstream data whether exempt from licensed spectrum resource by the first channel estimating criterion evaluation idle in subframe 1, after the result according to assessment has determined second channel evaluation criteria, it is subsequent send upstream data in subframe 2 before, or before sending upstream data in subframe 3 can assess this by the second channel evaluation criteria whether exempt from licensed spectrum resource idle.

Fig. 1 D is the schematic diagram of a scenario that terminal provided in an embodiment of the present invention sends upstream data；The network equipment determined within the period 121 exempt from licensed spectrum resource it is idle after or rob and account for exempting from licensed spectrum resource by this and sending downlink data after this exempts from licensed spectrum resource；Terminal receives the uplink scheduling signaling of network equipment transmission, afterwards, it is needed to send upstream data in subframe 1, subframe 2 and subframe 3 according to the instruction of the uplink scheduling signaling, the terminal first passes through above-mentioned first channel estimating standard before sending subframe 1, and in the assessment of period 122, this exempts from whether licensed spectrum resource can be used, after the result according to assessment has determined second channel evaluation criteria, when sending upstream data in subframe 2, whether by the second channel evaluation criteria assessing this in the period 123, to exempt from licensed spectrum resource idle；When sending upstream data in subframe 3, whether this by the second channel evaluation criteria in the period 124 to exempt from licensed spectrum resource idle if can also being assessed.

In another optional scheme, when terminal needs to send upstream data in new transmission time unit, and the new transmission time unit is when being first transmission time unit after determining new channel estimating standard, assessed before sending the upstream data in the new transmission time unit by the channel estimating standard of the new determination it is above-mentioned exempt from whether licensed spectrum resource idle, licensed spectrum resource is exempted from by this in the new time tranfer unit if idle and sends the upstream data.

For example, the scheduled transmission time unit of terminal is followed successively by subframe 1, subframe 2 and subframe 3 from time order and function；Terminal sends before upstream data whether exempt from licensed spectrum resource by the first channel estimating criterion evaluation idle in subframe 1, after second channel evaluation criteria has been determined according to the result of assessment, it is subsequent send upstream data in subframe 2 before, whether this by the second channel evaluation criteria to exempt from licensed spectrum resource idle if being assessed.And before sending upstream data in subframe 3, exempt from licensed spectrum resource for assessing this whether Kong Xian channel estimating standard can not be the second channel evaluation criteria.Referring again to Fig. 1 D, determining second channel evaluation criteria be used for the period 123 assessment exempt from whether licensed spectrum resource idle, as the period 124 assess this exempt from licensed spectrum resource whether free time used in channel estimating standard, herein with no restriction.Optionally, the period 124 uses channel estimating standard can exempt from licensed spectrum resource whether Kong Xian assessment result determines according to this is assessed in the period 123.

It should be noted that, in embodiments of the present invention, the multiple transmission time units for including in the first preset time period, terminal can determine the corresponding channel estimating standard of transmission time unit adjacent thereto and behind according to the corresponding channel estimating standard of each transmission time unit.The scheduled transmission time unit of terminal from Subframe 1, subframe 2 and subframe 3 are followed successively by time order and function.Terminal sends before upstream data whether exempt from licensed spectrum resource by the first channel estimating criterion evaluation idle in subframe 1, if idle, then it is subsequent send upstream data in subframe 2 before, whether this by the second channel evaluation criteria to exempt from licensed spectrum resource idle if being assessed.In a kind of optional scheme, the second channel evaluation criteria is the first channel estimating standard, terminal sends before upstream data whether exempt from licensed spectrum resource still through the first channel estimating criterion evaluation idle in subframe 2, if idle, still using the first channel estimating standard as the corresponding channel estimating standard of subsequent subframe (such as subframe 3).

It should be noted that, it includes sending upstream data on all or part of orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol of the subframe that terminal sends upstream data in some subframe (transmission time unit)；Send assess before the upstream data this exempt from licensed spectrum resource whether Kong Xian process can be after the previous subframe of the subframe, or in the previous subframe, or before the previous subframe, it can specifically be arranged according to actual needs at what time, the present invention is with no restriction.

It should be noted that in embodiments of the present invention, terminal can indicate to determine that the second preset time period and/or third preset time period, terminal can also determine the second preset time period and/or third preset time period according to preset rules according to the network equipment.

In embodiment of the method shown in Fig. 1, terminal determines subsequent channel estimating standard according to the result that the first channel estimating criterion evaluation goes out, exempt from whether licensed spectrum resource is idle by newly determining channel estimating standard to assess this, so that more reasonable to the use for exempting from licensed spectrum resource.

The method of the embodiment of the present invention is illustrated based on attached drawing 1 above, for the ease of better implementing the scheme of the embodiment of the present invention, below with reference to the equipment of Fig. 2 and 3 the present invention is described in detail embodiments.

Fig. 2 is a kind of structural schematic diagram of terminal 20 provided in an embodiment of the present invention；The terminal 20 includes that the first assessment unit 201, determination unit 202 and the second assessment unit 203, each unit are described in detail as follows:

Whether the first assessment unit 201 is used in the first preset time period exempt from licensed spectrum resource based on the first channel estimating criterion evaluation idle；

Determination unit 202 is used for when the result that first assessment unit 201 assess is idle, by second channel evaluation criteria be determined as assessing described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard；Or, result for being assessed in first assessment unit 201 when being idle the terminal by third channel estimating standard be determined as exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard, wherein, the probability for exempting from the licensed spectrum resource free time, which is evaluated, based on the second channel evaluation criteria goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, go out the probability for exempting from the licensed spectrum resource free time based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of second assessment unit 203 for determining by the determination unit 202, and exempts from licensed spectrum resource described in network equipment transmission upstream data evaluating the licensed spectrum resource space idle of exempting from.

In a kind of optional scheme, the duration of first preset time period is less than or equal to maximum channel and occupies duration MCOT.

In another optional scheme, the terminal 20 further include:

Receiving unit, for first assessment unit 201 exempted from the first preset time period based on the first channel estimating criterion evaluation licensed spectrum resource it is whether idle before, receive the instruction message that the network equipment is sent, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.

Whether idle exempt from licensed spectrum resource in another optional scheme, described in the channel estimating criterion evaluation that second assessment unit 203 is determined by the determination unit 202 specifically:

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of second assessment unit 203 in first preset time period through the determination.

In another optional scheme, first assessment unit 201 is specifically used for, and whether based on the first channel estimating criterion evaluation exempt from licensed spectrum resource in the first preset time period idle in the first scheduled transmission time unit；

Second assessment unit 203 is specifically used for, in first preset time period based on the determination Channel estimating criterion evaluation described in whether exempt from licensed spectrum resource idle in the second scheduled transmission time unit, and exempt from licensed spectrum resource transmission upstream data described in the second transmission time unit evaluating the licensed spectrum resource space idle of exempting from, the second transmission time unit is after the first transmission time unit.

In another optional scheme, the first transmission time unit is first transmission time unit that the terminal 20 is scheduled.

In another optional scheme, first assessment unit 201 be specifically used in the first preset time period execute based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.

In another optional scheme, second channel evaluation criteria is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the determination unit 202

The determination unit 202 by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

Third channel estimating standard is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the determination unit 202

The determination unit 202 by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.

In another optional scheme, the first channel estimating standard, the second channel evaluation criteria and the third channel estimating standard include channel competition window length and energy threshold；Based on comprising the long shorter channel estimating criterion evaluation of the channel competition window go out it is described exempt from that the probability of licensed spectrum resource free time is bigger, or based on comprising the bigger channel estimating criterion evaluation of the energy threshold go out described in exempt from the probability of licensed spectrum resource free time bigger.

It should be noted that the specific implementation of the terminal 20 in the be embodiment of Fig. 2 can correspond to the corresponding description of shown embodiment of the method referring to Fig.1.

Fig. 3 is the structural schematic diagram of another terminal 30 provided in an embodiment of the present invention；The terminal 30 may include output device 301, (processor 303 can also be with for one for memory 302 and processor 303 It is multiple, it is taken a processor as an example in Fig. 3), output device 301, memory 302 and processor 303 are separately connected bus 304, wherein, the program code of one group of clear channel assessment (CCA) is stored in memory 302, and processor 303 is for calling the program code of the clear channel assessment (CCA) stored in memory 302 to execute following operation:

In another optional scheme, the terminal 30 further includes input unit；The processor 303 is also used to, in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource it is whether idle before, the instruction message that the network equipment is sent is received by above-mentioned input unit, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.

Whether idle exempt from licensed spectrum resource in another optional scheme, described in channel estimating criterion evaluation of the processor 303 by the determination specifically:

The processor 303 passes through the channel estimating standard of the determination in first preset time period Whether idle exempt from licensed spectrum resource described in assessment.

In another optional scheme, whether the processor 303 exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle specifically:

Whether the processor 303 exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle in the first scheduled transmission time unit；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor 303 by the determination, and evaluate it is described exempt from licensed spectrum resource space idle by the output device 301 by the licensed spectrum resource of exempting to network equipment transmission upstream data specifically:

It is whether idle in the second scheduled transmission time unit to exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor 303 in first preset time period based on the determination, and exempt from licensed spectrum resource transmission upstream data described in by the output device 301 in the second transmission time unit evaluating the licensed spectrum resource space idle of exempting from, the second transmission time unit is after the first transmission time unit.

In another optional scheme, the first transmission time unit is first transmission time unit that the terminal 30 is scheduled.

The processor 303 executed in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.

In another optional scheme, the processor 303 by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard specifically:

The processor 303 by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

The processor 303 by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard specifically:

The processor 303 by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.

It should be noted that the specific implementation of the terminal 30 in the be embodiment of Fig. 3 can correspond to the corresponding description of shown embodiment of the method referring to Fig.1.

In summary, by implementing the embodiment of the present invention, terminal determines subsequent channel estimating standard according to the result that the first channel estimating criterion evaluation goes out, exempt from whether licensed spectrum resource is idle by newly determining channel estimating standard to assess this, so that more reasonable to the use for exempting from licensed spectrum resource.

Claims

A kind of clear channel assessment characterized by comprising

Whether terminal exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle；

If idle, the terminal by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard；Or, if not idle, then the terminal by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard, wherein, the probability for exempting from the licensed spectrum resource free time is evaluated based on the second channel evaluation criteria and goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, and the probability for exempting from the licensed spectrum resource free time is gone out based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal by the determination, and exempts from licensed spectrum resource described in network equipment transmission upstream data evaluating the licensed spectrum resource space idle of exempting from.
The method according to claim 1, wherein the duration of first preset time period, which is less than or equal to maximum channel, occupies duration MCOT.
The method according to claim 1, wherein the terminal in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource it is whether idle before, the method also includes:

The terminal receives the instruction message that the network equipment is sent, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.
Described in any item methods according to claim 1~3, which is characterized in that the terminal passes through institute It states and exempts from licensed spectrum resource described in determining channel estimating criterion evaluation whether the free time includes:

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal in first preset time period through the determination.
Method according to any one of claims 1 to 4, which is characterized in that the terminal exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period, and whether the free time includes:

Whether the terminal exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle in the first scheduled transmission time unit；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal by the determination, and evaluate it is described exempt from licensed spectrum resource space idle by it is described exempt from licensed spectrum resource and send upstream data to the network equipment include:

It is whether idle in the second scheduled transmission time unit to exempt from licensed spectrum resource described in channel estimating criterion evaluation of the terminal in first preset time period based on the determination, and exempt from licensed spectrum resource transmission upstream data described in the second transmission time unit evaluating the licensed spectrum resource space idle of exempting from, the second transmission time unit is after the first transmission time unit.
According to the method described in claim 5, it is characterized in that, the first transmission time unit is first transmission time unit that the terminal is scheduled.
Described in any item methods according to claim 1~6, which is characterized in that the terminal exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period, and whether the free time includes:

The terminal executed in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.
Described in any item methods according to claim 1~7, it is characterised in that:

Second channel evaluation criteria is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the terminal

The terminal by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

Third channel estimating standard is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the terminal

The terminal by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.
Described in any item methods according to claim 1~8, which is characterized in that the first channel estimating standard, the second channel evaluation criteria and the third channel estimating standard include channel competition window length and energy threshold；Based on comprising the long shorter channel estimating criterion evaluation of the channel competition window go out it is described exempt from that the probability of licensed spectrum resource free time is bigger, or based on comprising the bigger channel estimating criterion evaluation of the energy threshold go out described in exempt from the probability of licensed spectrum resource free time bigger.
A kind of terminal characterized by comprising

First assessment unit, it is whether idle for exempting from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period；

Determination unit, when result for assessing in first assessment unit is idle, by second channel evaluation criteria be determined as exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；Or, result for being assessed in first assessment unit when being idle the terminal by third channel estimating standard be determined as exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard, wherein, the probability for exempting from the licensed spectrum resource free time, which is evaluated, based on the second channel evaluation criteria goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, go out the probability for exempting from the licensed spectrum resource free time based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation；

Second assessment unit, whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation for determining by the determination unit, and exempts from licensed spectrum resource described in network equipment transmission upstream data evaluating the licensed spectrum resource space idle of exempting from.
Terminal according to claim 10, which is characterized in that the duration of first preset time period is less than or equal to maximum channel and occupies duration MCOT.
Terminal according to claim 10, which is characterized in that the terminal further include:

Receiving unit, for first assessment unit exempted from the first preset time period based on the first channel estimating criterion evaluation licensed spectrum resource it is whether idle before, receive the instruction message that the network equipment is sent, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.
0~12 described in any item terminals according to claim 1, which is characterized in that whether idle exempt from licensed spectrum resource described in the channel estimating criterion evaluation that second assessment unit is determined by the determination unit specifically:

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of second assessment unit in first preset time period through the determination.
0~13 described in any item terminals according to claim 1, which is characterized in that

First assessment unit is specifically used for, and whether based on the first channel estimating criterion evaluation exempt from licensed spectrum resource in the first preset time period idle in the first scheduled transmission time unit；

Second assessment unit is specifically used for, it is whether idle in the second scheduled transmission time unit to exempt from licensed spectrum resource described in channel estimating criterion evaluation in first preset time period based on the determination, and exempt from licensed spectrum resource transmission upstream data described in the second transmission time unit evaluating the licensed spectrum resource space idle of exempting from, the second transmission time unit is after the first transmission time unit.
Terminal according to claim 14, which is characterized in that the first transmission time unit First transmission time unit being scheduled for the terminal.
0~15 described in any item terminals according to claim 1, which is characterized in that first assessment unit be specifically used in the first preset time period execute based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.
0~16 described in any item terminals according to claim 1, it is characterised in that:

Second channel evaluation criteria is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the determination unit

The determination unit by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

Third channel estimating standard is determined as exempting from licensed spectrum resource described in assessment whether Kong Xian channel estimating standard including: by the determination unit

The determination unit by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.
0~17 described in any item terminals according to claim 1, which is characterized in that the first channel estimating standard, the second channel evaluation criteria and the third channel estimating standard include channel competition window length and energy threshold；Based on comprising the long shorter channel estimating criterion evaluation of the channel competition window go out it is described exempt from that the probability of licensed spectrum resource free time is bigger, or based on comprising the bigger channel estimating criterion evaluation of the energy threshold go out described in exempt from the probability of licensed spectrum resource free time bigger.
A kind of terminal, which is characterized in that including output device, memory and processor, the processor calls the clear channel assessment (CCA) program in the memory, for performing the following operations:

Whether based on the first channel estimating criterion evaluation, to exempt from licensed spectrum resource idle in the first preset time period；

If idle, second channel evaluation criteria is determined as described in assessment whether exempt from licensed spectrum resource idle Channel estimating standard；Or, if not idle, then by third channel estimating standard be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard, wherein, the probability for exempting from the licensed spectrum resource free time is evaluated based on the second channel evaluation criteria and goes out the probability for exempting from the licensed spectrum resource free time not less than based on the first channel estimating criterion evaluation, and the probability for exempting from the licensed spectrum resource free time is gone out based on the third channel estimating criterion evaluation and goes out the probability for exempting from the licensed spectrum resource free time less than based on the first channel estimating criterion evaluation；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation by the determination, and evaluate it is described exempt from licensed spectrum resource space idle by the output device by the licensed spectrum resource of exempting to network equipment transmission upstream data.
Terminal according to claim 19, which is characterized in that the duration of first preset time period is less than or equal to maximum channel and occupies duration MCOT.
Terminal according to claim 19, which is characterized in that the terminal further includes input unit；The processor is also used to, in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource it is whether idle before, the instruction message that the network equipment is sent is received by above-mentioned input unit, the instruction message exempts from the information of licensed spectrum resource and the information of first preset time period described in including, and first preset time period uses described exempt from the maximum channel holding time MCOT that licensed spectrum resource sends downlink data in the network equipment.
9~21 described in any item terminals according to claim 1, which is characterized in that whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor by the determination specifically:

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor in first preset time period through the determination.
9~22 described in any item terminals according to claim 1, which is characterized in that whether the processor exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle specific Are as follows:

Whether the processor exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle in the first scheduled transmission time unit；

Whether idle exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor by the determination, and evaluate it is described exempt from licensed spectrum resource space idle by the output device by the licensed spectrum resource of exempting to network equipment transmission upstream data specifically:

It is whether idle in the second scheduled transmission time unit to exempt from licensed spectrum resource described in channel estimating criterion evaluation of the processor in first preset time period based on the determination, and exempt from licensed spectrum resource transmission upstream data described in by the output device in the second transmission time unit evaluating the licensed spectrum resource space idle of exempting from, the second transmission time unit is after the first transmission time unit.
Terminal according to claim 23, which is characterized in that the first transmission time unit is first transmission time unit that the terminal is scheduled.
9~24 described in any item terminals according to claim 1, which is characterized in that whether the processor exempts from licensed spectrum resource based on the first channel estimating criterion evaluation in the first preset time period idle specifically:

The processor executed in the first preset time period based on the first channel estimating criterion evaluation exempt from licensed spectrum resource whether Kong Xian step at least once.
9~25 described in any item terminals according to claim 1, it is characterised in that:

The processor by second channel evaluation criteria be determined as assessment described in exempt from licensed spectrum resource whether Kong Xian channel estimating standard specifically:

The processor by second channel evaluation criteria be determined as in the second preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard；

Third channel estimating standard is determined as described in assessment whether exempt from licensed spectrum resource empty by the processor Not busy channel estimating standard specifically:

The processor by third channel estimating standard be determined as in third preset time period exempting from described in assessment licensed spectrum resource whether Kong Xian channel estimating standard.
9~26 described in any item methods according to claim 1, which is characterized in that the first channel estimating standard, the second channel evaluation criteria and the third channel estimating standard include channel competition window length and energy threshold；Based on comprising the long shorter channel estimating criterion evaluation of the channel competition window go out it is described exempt from that the probability of licensed spectrum resource free time is bigger, or based on comprising the bigger channel estimating criterion evaluation of the energy threshold go out described in exempt from the probability of licensed spectrum resource free time bigger.