WO2017076344A1 - 信道干净评估检测方法和装置 - Google Patents

信道干净评估检测方法和装置 Download PDF

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Publication number
WO2017076344A1
WO2017076344A1 PCT/CN2016/104642 CN2016104642W WO2017076344A1 WO 2017076344 A1 WO2017076344 A1 WO 2017076344A1 CN 2016104642 W CN2016104642 W CN 2016104642W WO 2017076344 A1 WO2017076344 A1 WO 2017076344A1
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Prior art keywords
pattern
frequency domain
prb
resource
block
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PCT/CN2016/104642
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English (en)
French (fr)
Inventor
杨玲
苟伟
彭佛才
赵亚军
李新彩
毕峰
张晨晨
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中兴通讯股份有限公司
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Priority to US15/773,741 priority Critical patent/US10771986B2/en
Publication of WO2017076344A1 publication Critical patent/WO2017076344A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • the present invention relates to the field of communications, and in particular to a channel clean evaluation detection method and apparatus.
  • LTE long term evolution
  • the unlicensed spectrum has the characteristics that the unlicensed spectrum does not need to be purchased, the spectrum resource has zero cost, and has the characteristics of free or low cost; the individual and the enterprise can participate in the deployment, and the equipment of the equipment vendor can be deployed arbitrarily, and the admission requirement is low. Low cost; 5GHz, 2.4GHz and other frequency bands in the unlicensed spectrum can be used, with features of large available bandwidth; unlicensed carriers have the characteristics of shared resources, that is, when multiple different systems are operating or the same system When different operators operate in it, they can consider some ways of sharing resources to improve spectrum utilization efficiency, and so on.
  • the Rel-13 version of the LTE system began to be researched in September 2014.
  • One of the important research topics is that the LTE system uses carrier work of unlicensed spectrum. This technology will enable the LTE system to use the carriers of the existing unlicensed spectrum, greatly increasing the potential spectrum resources of the LTE system, enabling the LTE system to obtain lower spectrum costs.
  • LAA Licensed-Assisted Access
  • Wi-Fi wireless fidelity
  • LAA equipment such as evolved Node B (eNB) and / User Equipment (UE) needs to comply with the LBT requirements to achieve friendly coexistence with the Wi-Fi system.
  • eNB evolved Node B
  • UE User Equipment
  • a consensus on frequency reuse in the Rel-13 RAN1 #Ad-hoc conference, that is, the transmission of the adjacent LAA cell with the operator can achieve frequency reuse will be a goal of the LAA design, and the design of the LBT needs to be considered.
  • the terminal side the terminal in the same cell or the terminal under the same operator also needs to consider the multiplexing problem.
  • the design of the frequency domain pattern corresponding to the LBT detection needs to be considered, thereby achieving or improving the multiplexing efficiency.
  • the downlink transmission multiplexing efficiency candidate can be improved.
  • the method includes: Clear Channel Assessment (CCA) threshold adaptation (CCA threshold adaptation); Tx start timing alignment; Signal subtraction from ED or modified ED; Combination of those options or other alternatives are not precluded. Based on the discussions before the 82nd meeting, the advantages and disadvantages of the above methods were finally achieved. Consensus: Improve the frequency reuse on the base station side by means of CCA threshold adaptation and transmission start timing alignment.
  • the LAA device needs to identify that the signal perceived on the unlicensed carrier is from other LAA devices or other system devices, thereby adjusting (adjusting or reducing) the CCA detection threshold to achieve the same operation.
  • LBT process coordination coordination parameters include at least one: random back-off value N, Extended Clear Channel Assessment (ECCA) start time position, start transmission time), but it will lead to a decrease in channel access probability and thus can not achieve good multiplexing.
  • the embodiment of the invention provides a channel clean evaluation detection method and device, so as to at least solve the problem that the non-authorized carrier access probability caused by CCA detection in the related art is low.
  • a channel clean evaluation detection method including: acquiring a channel clean evaluation CCA detection pattern or a silent Muting pattern; on a resource corresponding to the CCA detection pattern or corresponding to the Muting pattern The CCA detection is performed on the unlicensed carrier channel on the resource.
  • acquiring the CCA detection pattern or the Muting pattern includes: acquiring the CCA detection pattern or the Muting pattern according to a parameter, where the parameter includes at least one of: a time domain start position, a frequency domain Start position, length of time domain continuous resource, length of frequency domain continuous resource, interval between time domain resources, interval between frequency domain resources, number of subframes in time domain or transmission burst burst length, frequency domain bandwidth .
  • the time domain starting location includes at least one of: a time domain starting subframe index number, and an orthogonal frequency division multiplexing OFDM symbol in a subframe corresponding to the time domain starting subframe index number An index number, a slot index number corresponding to the time domain start subframe index number, and an OFDM symbol index number in the slot index number corresponding to the time domain start subframe index number.
  • the time slot index number is a first predetermined value, indicating a first half time slot in a subframe; and the time slot index number is a second predetermined value, indicating a second half time slot in the subframe;
  • the first half slot and the second half slot each include 6 or 7 OFDM symbols, and the smallest OFDM symbol index number in each slot is 0, and the largest OFDM symbol index number is 5 or 6.
  • the first predetermined value is 0, and the second predetermined value is 1.
  • the frequency domain starting location includes at least one of: an index number of a frequency domain starting physical resource block PRB, an index number of a starting resource particle RE in each PRB in the frequency domain, and an RE in a frequency domain.
  • the index of the start position relative to the RE on the entire bandwidth the index number of the frequency domain start resource block group RBG, the index number of the frequency domain start resource particle group REG, and the frequency domain start subband index.
  • the length of the time domain contiguous resource includes at least one of: a number of consecutive OFDM symbols in the time domain, and a number of consecutive subframes in the time domain.
  • the length of the frequency domain continuous resource includes at least one of the following: a number of consecutive PRBs in the frequency domain, a number of consecutive REs in the frequency domain, a number of consecutive RBGs in the frequency domain, and a continuous frequency domain.
  • the interval between the time domain resources includes at least one of: an OFDM symbol number or a subframe number or a frame number between a previous resource and a next resource in the time domain, and a previous resource in the time domain
  • the number of OFDM symbols or the number of subframes or frames between the next resource block, the number of OFDM symbols or the number of subframes or frames between the previous resource block and the next resource in the time domain, and the last resource block in the time domain The number of OFDM symbols or the number of subframes or frames between the next resource block.
  • the number of symbols between two time domain resources and/or resource blocks refers to from the end symbol position of the previous resource and/or resource block to the start symbol of the next resource and/or resource block.
  • the number of symbols refers to from the end symbol position of the previous resource and/or resource block to the start symbol of the next resource and/or resource block.
  • the interval between each time domain resource and/or resource block is the same or different.
  • the number of OFDM symbols included in each time domain resource block is the same or different.
  • the interval between the frequency domain resources includes at least one of the following: a number of PRBs included between one PRB and a next PRB in the frequency domain, and a number of PRBs included between one PRB block and the next PRB block in the frequency domain.
  • the number of PRBs included between one PRB and the next PRB block in the frequency domain; the number of PRBs included between one PRB block and the next PRB in the frequency domain; the number of REs included between one RE and the next RE in the frequency domain The number of REs included between one RE block and the next RE block in the frequency domain; the number of REs included between one RE and the next RE block in the frequency domain; and the content between one RE block and the next RE in the frequency domain
  • Number of REs; number of RBGs or RBs included between one RBG and the next RBG in the frequency domain; number of RBGs or RBs included between one RBG and the next RBG block in the frequency domain; one RBG block and lower in the frequency domain The number of RBGs or RBs included between one RBG; the number of RBGs or RBs included between one RBG block and the next RBG block in the frequency domain; the number of RBs included between one subband and the next subband in the frequency domain Or the number of subbands.
  • the number or interval of PRBs between two frequency domain PRBs and/or PRB blocks refers to the beginning PRB of the next PRB and/or PRB block from the end PRB position of the previous PRB and/or PRB block.
  • the number of PRBs between the two; and/or the number or interval of REs between the two frequency domain REs and/or RE blocks means from the end RE position of the previous RE and/or RE block to the next RE resource block
  • the number or interval of PRBs between the frequency domain PRB and/or PRB blocks are the same or different; and/or the number or interval of REs between the frequency domain RE and/or RE blocks are the same or different; and/or, The intervals between the frequency domain RBG and/or RBG blocks are the same or different.
  • the number of REs included in each frequency domain RE block is the same or different; and/or the number of PRBs included in each frequency domain PRB block is the same or different; and/or, each frequency domain RBG block is included
  • the number of RBG/PRB is the same or different; And/or, each subband has the same or different bandwidth.
  • the number of subframes or the burst burst length in the time domain includes at least one of the following: the number of frames, the number of subframes, the number of OFDM symbols, the number of consecutive occupied subframes, the number of consecutive occupied OFDM symbols, and performing CCA The number of consecutively used sub-frames at the successful moment, and the length of time during which the CCA success time starts to be continuously used.
  • the frequency domain bandwidth includes one of: a value of a frequency domain bandwidth, a total number of PRBs corresponding to the frequency domain bandwidth, a total number of REs corresponding to the frequency domain bandwidth, and an RBG corresponding to the frequency domain bandwidth.
  • the total number the total number of subbands corresponding to the frequency domain bandwidth.
  • the value of the frequency domain bandwidth is one of the following: 5 MHz, 10 MHz, 15 MHz, 20 MHz.
  • the CCA detection pattern or the Muting pattern is formed by at least one of the following frequency domain parameters and at least one of the following time domain parameters, wherein the parameters constituting the frequency domain pattern include at least one of the following : the entire bandwidth in the frequency domain, the PRB starting index number in the frequency domain, the number of consecutive PRBs in the frequency domain, the interval between PRBs and/or PRB blocks in the frequency domain, and the starting RE index number in the starting PRB in the frequency domain.
  • the interval between the RBG and/or RBG blocks on the domain, the subband start index number in the frequency domain, the subband bandwidth, the interval of the subbands in the frequency domain; and/or the parameters constituting the time domain pattern include at least the following 1: The entire time domain resource, the starting frame index number in the time domain, the starting subframe index number in the starting frame in the time domain, the slot index number in the starting subframe in the starting frame in the time domain, and the time domain Continuous OFDM symbol length, consecutive sub-frame lengths in the time domain, consecutive frame index numbers in the time domain, OFDM symbols in the time domain, and/or OF The spacing between DM symbol blocks.
  • the frequency domain pattern of the RE level includes at least one of the following: the RE pattern on each PRB is the same, and the frequency domain pattern formed by one RE in one PRB; the RE pattern on each PRB is the same, and one A frequency domain pattern composed of a plurality of consecutive REs in the PRB; the RE patterns on each PRB are the same, and the intervals of one PRB are equal, and the frequency domain pattern of each RE or RE block is equal in size; the RE on each PRB The same pattern, and a PRB with equal intervals, each RE or RE block size is not equal to the frequency domain pattern; the RE pattern on each PRB is the same, and one PRB is unequal, each RE or RE block is equal in size
  • the frequency domain pattern is composed; the RE patterns on each PRB are the same, and the frequency domain pattern is formed by unequal intervals in each PRB, and the size of each RE or RE block is unequal; the entire bandwidth is equal, and each RE or RE A frequency domain pattern composed of equal block sizes; a frequency domain pattern in which the entire
  • the frequency domain pattern of the PRB level includes at least one of the following: the entire frequency domain, the interval is equal, and each PRB Or a frequency domain pattern composed of equal PRB block sizes; a frequency domain pattern in which the entire bandwidth is equal, and each PRB or PRB block size is unequal; the entire bandwidth is unequal, and each PRB or PRB block is equal in size.
  • the frequency domain pattern; the entire frequency bandwidth, unequal intervals, each PRB or PRB block size is not equal to the frequency domain pattern.
  • the frequency domain pattern of the RBG level includes at least one of the following: a frequency domain pattern formed by equal equal equal intervals in each frequency domain, each RBG or RBG block size is equal; the entire bandwidth is equal, and each interval is equal to each RBG. Or a frequency domain pattern formed by unequal RBG block sizes; a frequency domain pattern of equal unequal intervals, each RBG or RBG block size is equal in bandwidth; the entire bandwidth is unequal, and each RBG or RBG block size is not Equal frequency domain pattern.
  • the frequency domain pattern of the subband level includes one of the following: a frequency domain pattern formed by equal bandwidths in the entire frequency domain, and equal bandwidths of the subbands; and equal intervals in the entire frequency domain, and the subband bandwidths are not equal.
  • the pattern of the time-frequency domain is obtained according to a combination of the frequency domain pattern and the time domain pattern.
  • the frequency domain resource pattern does not change with time; or, as time increases, the frequency domain resource pattern is sequentially decreased or incremented; or, the time domain
  • the upper pattern is continuous, and the continuous pattern in the frequency domain is successively decreasing or increasing; or, the pattern in the time domain is continuous, and the discrete patterns in the frequency domain are successively decreasing or increasing; or, the patterns in the time domain are discrete, and the continuous patterns in the frequency domain are sequentially Decrement or increment; or, the pattern in the time domain is discrete, and the discrete patterns in the frequency domain are successively decreasing or increasing; or, the patterns in the time domain are successively incremented, and the discrete patterns in the frequency domain are successively decreasing or increasing.
  • performing the CCA detection on the unlicensed carrier channel on the resource corresponding to the CCA detection pattern or on the resource corresponding to the Muting pattern includes: configuring different CCA detection patterns by different operators or The Muting pattern; and/or the CCA detection pattern or the Muting pattern configured in the same system as the carrier in the same system; and/or different from the different transmission equipment configurations in the same system of the operator.
  • the CCA detection pattern or the Muting pattern includes: configuring different CCA detection patterns by different operators or The Muting pattern; and/or the CCA detection pattern or the Muting pattern configured in the same system as the carrier in the same system; and/or different from the different transmission equipment configurations in the same system of the operator.
  • performing, by the transmitting device, the CCA detection on the resource corresponding to the configured CCA detection pattern or the Muting pattern includes: detecting, on the resource corresponding to the CCA detection pattern or the Muting pattern, that the energy is less than the first In the case of a threshold value, at least one of the following is determined: the unlicensed carrier channel is in an idle state, and the device in the same carrier has occupied the unlicensed carrier channel, and the unlicensed carrier channel has no different system; And determining, if the energy detected on the resource corresponding to the corresponding CCA detection pattern or the Muting pattern is greater than the first threshold, at least one of the following: a different system exists on the unlicensed carrier channel, The unlicensed carrier channel is not available, and the unlicensed carrier channel has been occupied by devices in other systems or different carriers.
  • the first threshold value can be adjusted when the energy on the CCA detection pattern or the Muting pattern is less than the first threshold.
  • performing the CCA detection on the resource other than the configured CCA detection pattern or the Muting pattern or the entire bandwidth of the transmission device in the same system of the carrier includes: corresponding to the CCA detection pattern or the Muting pattern.
  • the energy detected on the resource corresponding to the complement or the entire bandwidth is greater than the first threshold and less than the second threshold, it is determined that the transmission device can perform with the transmission device in the same carrier of the occupied channel.
  • the multiplexing or transmitting device determines that the unlicensed carrier is available; and if the energy detected by the corresponding CCA detection pattern or the complement corresponding to the Muting pattern or the entire bandwidth is less than the first threshold, determining the location The unlicensed carrier channel is in an idle state; if the energy detected on the resource corresponding to the complement of the CCA detection pattern or the Muting pattern is greater than the second threshold, one of the following is determined: The carrier is in an unavailable state, and the unlicensed carrier is being used by other transmission devices or devices in different carriers.
  • the transmission device that performs the LBT process with random backoff stops the current LBT process, and reconfigures the random backoff value N according to the time domain length of the Muting pattern.
  • the LBT Cat2 mechanism is executed immediately, where N is an integer greater than or equal to 0, and the newly configured random backoff value N satisfies to be decremented to 0 before the time point at which the Muting pattern time domain ends.
  • the transmission device considers that the usage right of the unlicensed carrier is acquired, the information is sent on all frequency domain resources except the configured Muting pattern.
  • the method further includes: adopting the same CCA detection pattern between the base stations in the operator.
  • adopting the same CCA detection pattern or the Muting pattern between the base stations in the operator includes one of: selecting at least one of the multiple base stations of the operator from the CCA pattern set or Determining one or more patterns to be used for CCA detection, at least one of the plurality of base stations notifying other base stations of the parameters employed by the one or more patterns or constituent patterns through an X2 interface, wherein the one or The multiple patterns are used as the CCA detection pattern or the Muting pattern, or the same CCA detection pattern or the Muting pattern adopted by the base station in the same operator is determined in a predefined manner; or the base station is obtained through the OAM background configuration.
  • the parameters used in the CCA pattern to obtain the pattern used in the CCA test.
  • the method further includes: the user equipment acquires the CCA detection pattern by using a base station broadcast notification that is connected by the user equipment; the user equipment acquires the CCA detection pattern by using a DCI indication; and the user equipment passes the SIM card.
  • the CCA pattern parameter configuration is configured to acquire the CCA detection pattern; the user equipment acquires the CCA detection pattern in a predefined manner.
  • the CCA detection pattern, or the Muting pattern, or the parameter constituting the CCA detection pattern or the Muting pattern is obtained by at least one of the following: a predefined, physical layer downlink control information DCI letter Order, high-level radio resource control RRC signaling, negotiation between base station and base station, agreement between base station and UE.
  • a channel clean evaluation detecting apparatus comprising: an obtaining module, configured to acquire a channel clean evaluation CCA detection pattern or a silent Muting pattern; and a detecting module, configured to detect a pattern in the CCA Performing CCA detection on the unlicensed carrier channel on the corresponding resource or on the resource corresponding to the Muting pattern.
  • the acquiring module is configured to: acquire the CCA detection pattern or the Muting pattern according to a parameter,
  • the parameter includes at least one of the following: a time domain start location, a frequency domain start location, a time domain continuous resource length, a frequency domain continuous resource length, a time domain resource interval, and a frequency domain resource. Interval, the number of transmitted subframes in the time domain or the burst length of the transmission burst, the frequency domain bandwidth.
  • the acquisition channel is used to evaluate the CCA detection pattern or the silent Muting pattern; the method for performing CCA detection on the unlicensed carrier channel on the resource corresponding to the CCA detection pattern or the resource corresponding to the Muting pattern is solved.
  • the interference source problem cannot be identified during the CCA detection, resulting in low multiplexing efficiency and low probability of unlicensed carrier access, improving resource reuse efficiency and increasing channel access probability in the related art.
  • FIG. 1 is a flow chart of a channel clean evaluation detection method according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the structure of a channel clean evaluation detecting apparatus according to an embodiment of the present invention
  • FIG. 3 is a first schematic diagram of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 4 is a second schematic diagram of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 5 is a third schematic diagram of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 6 is a schematic diagram 4 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 7 is a schematic diagram 5 of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 8 is a sixth diagram of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 9 is a schematic diagram 7 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 10 is a schematic diagram 8 of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 11 is a schematic diagram IX of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 12 is a schematic diagram 10 of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 13 is a schematic diagram XI of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 14 is a schematic diagram 12 of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • 15 is a schematic diagram thirteen of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • 16 is a schematic diagram of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 17 is a schematic diagram 15 of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 18 is a schematic diagram 16 of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • FIG. 19 is a schematic diagram 17 of a channel clean evaluation detection pattern in accordance with an alternative embodiment of the present invention.
  • 20 is a schematic diagram of a channel clean evaluation detection pattern in accordance with an alternate embodiment of the present invention.
  • FIG. 1 is a flowchart of a channel clean evaluation detection method according to an embodiment of the present invention. As shown in FIG. 1 , the flow includes the following steps:
  • Step S102 acquiring a channel clean evaluation (CCA) detection pattern or a muting pattern
  • Step S104 Perform CCA detection on the unlicensed carrier channel on the resource corresponding to the CCA detection pattern or on the resource corresponding to the Muting pattern.
  • CCA detection is performed on the unlicensed carrier channel on the resource corresponding to the CCA detection pattern or on the resource corresponding to the Muting pattern, and the correlation is solved by using the pattern for CCA detection.
  • the interference source problem cannot be identified during the CCA detection, resulting in low multiplexing efficiency and low probability of unlicensed carrier access, improving resource reuse efficiency and increasing channel access probability in the related art.
  • the CCA detection pattern or the Muting pattern may be obtained according to the parameter, and the CCA detection pattern or the Muting pattern may be obtained by using various parameters.
  • the parameter may include at least one of the following: Start position, frequency domain start position, length of time domain continuous resource, length of frequency domain continuous resource, interval between time domain resources, interval between frequency domain resources, number of transmission subframes in time domain or transmission burst (burst) length, frequency domain bandwidth.
  • the start of the time domain may include at least one of the following: a time domain start subframe index number, and an Orthogonal Frequency Division Multiplexing (OFDM) in a subframe corresponding to the time domain start subframe index number.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the slot index number will be described below with an example.
  • the slot index number is the first predetermined value, indicating the first half slot in the subframe; the slot index number is the second.
  • the predetermined value indicates the second half slot in the subframe; wherein the first half slot and the second half slot both include 6 or 7 OFDM symbols, and the smallest OFDM symbol index number in each slot is 0, and the largest OFDM
  • the symbol index number is 5 or 6.
  • the slot index number is 0, indicating the first half slot in the subframe; the slot index number is 1 indicates the second half slot in the subframe.
  • the frequency domain start location may include at least one of the following: an index number of a physical resource block (Physical Resource Block, PRB for short), and a start resource particle (Resource Element for each PRB) in the frequency domain.
  • Index number of RE the index number of the RE starting position in the frequency domain relative to the RE over the entire bandwidth
  • RBG the index number of the frequency domain starting resource block group
  • REG the index number of the frequency domain starting resource particle group REG
  • the length of the time domain contiguous resource may include at least one of the following: the number of consecutive OFDM symbols in the time domain, and the number of consecutive subframes in the time domain.
  • the length of the frequency domain continuous resource may include at least one of the following: the number of consecutive PRBs in the frequency domain, the number of consecutive REs in the frequency domain, the number of consecutive RBGs in the frequency domain, the number of consecutive REGs in the frequency domain, and the frequency. The number of consecutive subbands on the domain.
  • the interval between the time domain resources may include at least one of the following: the number of OFDM symbols or the number of subframes or frames between the previous resource and the next resource in the time domain, the last resource in the time domain and the next resource block.
  • the number of OFDM symbols or the number of subframes or frames, the number of OFDM symbols or the number of subframes or frames between the previous resource block and the next resource in the time domain, the last resource block in the time domain and the next resource block The number of OFDM symbols or the number of subframes or the number of frames, wherein the number of symbols between two time domain resources and/or resource blocks refers to the end symbol position from the previous resource and/or resource block, to the next
  • the number of symbols between the start symbols of a resource and/or resource block; the interval between each time domain resource and/or resource block may be the same or different; the number of OFDM symbols included in each time domain resource block may be the same It can also be different.
  • the interval between the frequency domain resources may include at least one of the following: the number of PRBs included between one PRB and the next PRB in the frequency domain; the number of PRBs included between one PRB block and the next PRB block in the frequency domain; The number of PRBs included between one PRB and the next PRB block; the number of PRBs included between one PRB block and the next PRB in the frequency domain; the number of REs included between one RE and the next RE in the frequency domain; The number of REs included between one RE block and the next RE block; the number of REs included between one RE and the next RE block in the frequency domain; the number of REs included between one RE block and the next RE in the frequency domain; Number of RBGs or RBs included between one RBG and the next RBG in the domain; number of RBGs or RBs included between one RBG and the next RBG block in the frequency domain; between one RBG block and the next RBG in the frequency domain Number of RBGs or RBs included between one RBG and the next RBG in
  • the number or interval of PRBs between two frequency domain PRBs and/or PRB blocks refers to from the end PRB position of the previous PRB and/or PRB block to the start PRB of the next PRB and/or PRB block. Number of PRBs;
  • the number or interval of REs between two frequency domain REs and/or RE blocks refers to the number of REs from the end RE position of the previous RE and/or RE block to the start RE of the next RE resource block;
  • the number or interval of RBGs between two frequency domain RBG and/or RBG blocks refers to the number of RBGs from the end position of the previous RBG and/or RBG block to the start RBG of the next RBG and/or RBG block.
  • the number or interval of RBs between two frequency domain RBG and/or RBG blocks refers to the number of RBs from the end position of the previous RBG and/or RBG block to the start RBG of the next RBG and/or RBG block.
  • the number and interval of resources between the resources may be the same or different.
  • the number or interval of PRBs between the PRB and/or PRB blocks may be the same or different; the frequency domain RE and The number or interval of REs between the RE blocks may be the same or different; the intervals between the frequency domain RBGs and/or RBG blocks may be the same or different.
  • the number of resources included in each frequency domain RE block may be the same or different, for example, the number of REs included in each frequency domain RE block may be the same or different; the number of PRBs included in each frequency domain PRB block The number of RBGs/PRBs included in each frequency domain RBG block may be the same or different; the bandwidth of each sub-band may be the same or different.
  • the number of transmission subframes or the transmission burst length in the time domain may include at least one of the following: the number of frames, the number of subframes, the number of OFDM symbols, the number of consecutively occupied subframes, the number of OFDM symbols continuously occupied, and the continuous execution of the CCA success time starts continuously.
  • the frequency domain bandwidth may include one of the following: the value of the frequency domain bandwidth, the total number of PRBs corresponding to the frequency domain bandwidth, the total number of REs corresponding to the frequency domain bandwidth, the total number of RBGs corresponding to the frequency domain bandwidth, and the total number of subbands corresponding to the frequency domain bandwidth.
  • the value of the frequency domain bandwidth may be, but is not limited to, one of the following: 5 MHz, 10 MHz, 15 MHz, 20 MHz.
  • the CCA detection pattern or the Muting pattern may be formed by at least one of the following frequency domain parameters and at least one of the following time domain parameters, where
  • the parameters constituting the frequency domain pattern may include at least one of the following:
  • the parameters constituting the time domain pattern may include at least one of the following:
  • the entire time domain resource the starting frame index number in the time domain, the starting subframe index number in the starting frame on the time domain, the slot index number in the starting subframe in the starting frame in the time domain, and the time domain consecutive OFDM symbol length, consecutive sub-frame lengths in the time domain, consecutive frame index numbers in the time domain, OFDM symbols in the time domain, and/or spacing between OFDM symbol blocks.
  • a CCA detection pattern or a Muting pattern can be constructed by combining the above frequency domain parameters and time domain parameters.
  • a pattern of at least one of the following may be determined according to parameters constituting the frequency domain pattern: a frequency domain pattern of a RE level, a frequency domain pattern of a PRB level, a frequency domain pattern of an RBG level, and a frequency domain pattern of a subband level;
  • the pattern of at least one of the following may be determined according to parameters constituting the time domain pattern: the entire time domain; a pattern of consecutive resource blocks in the time domain; the time domain is equally spaced, and each time domain resource or resource block has the same size Time-domain pattern; time-domain patterns with equal intervals in the time domain and different sizes of each time-domain resource or resource block; when the time-domain intervals are not equal, and each time-domain resource or resource block has the same size A domain pattern; a time domain pattern with different unequal intervals in the time domain and different sizes of each time domain resource or resource block.
  • the frequency domain pattern of the foregoing RE level may include at least one of the following: a RE pattern on each PRB, and a frequency domain pattern formed by one RE in one PRB; the RE pattern on each PRB is the same, and one of the PRBs is the same A frequency domain pattern composed of a plurality of consecutive REs; the RE patterns on each PRB are the same, and the intervals of one PRB are equal, and the size of each RE or RE block is equal; the RE pattern on each PRB is the same. And a frequency domain pattern in which the intervals of each PR or RE block are equal, and the RE patterns on each PRB are the same, and the frequency of each RE or RE block is equal.
  • each RE pattern on each PRB is the same, and the frequency domain pattern of each RE or RE block is not equal in interval, and the interval is equal, and each RE or RE block is equal in size.
  • the frequency domain pattern formed by the equal frequency bandwidth and the equal size of each RE or RE block; the frequency domain pattern formed by the equal size of each RE or RE block in the entire bandwidth; Unequal interval across the entire bandwidth, each RE RE block size is equal to the frequency domain pattern configuration.
  • the frequency domain pattern of the foregoing PRB level may include at least one of the following: a frequency domain pattern formed by equal equal equal intervals in the entire frequency domain, and each PRB or PRB block size is equal; the entire bandwidth is equal, and each PRB or PRB block is equal.
  • the frequency domain pattern of the subband level may include one of the following: a frequency domain pattern formed by equal bandwidths in the entire frequency domain, equal in subband bandwidth, and a frequency domain formed by equal bandwidths in the entire frequency domain and equal subband bandwidths. Pattern; the frequency domain pattern formed by the equal bandwidth of the subbands in the entire frequency domain; the frequency domain pattern formed by the unequal spacing and subband bandwidths in the entire frequency domain.
  • a pattern of time-frequency domains can be obtained according to a combination of a frequency domain pattern and a time domain pattern.
  • the frequency domain resource pattern may be unchanged as time goes by; or, the frequency domain resource pattern may be successively decreased or incremented as time increases; or, the pattern may be continuous in the time domain.
  • the continuous pattern in the frequency domain is successively decreasing or increasing; or, the pattern in the time domain is continuous, and the discrete patterns in the frequency domain are successively decreasing or increasing; or, the patterns in the time domain are discrete, and the continuous patterns in the frequency domain are successively decreasing. Or increment; or, the pattern can be discrete in the time domain, The discrete patterns in the frequency domain are successively decremented or incremented; or, the patterns in the time domain are successively incremented sequentially, and the discrete patterns in the frequency domain are successively decreasing or increasing.
  • different CCA detection patterns or Muting patterns can be configured for different operators; the same CCA detection pattern or Muting pattern can be configured for the transmission equipment in the same system as the operator; Different transmission devices in the system can be configured with different CCA detection patterns or Muting patterns.
  • the transmission device can perform CCA detection on the resources corresponding to the configured CCA detection pattern or the Muting pattern.
  • the following illustrates the CCA detection process in this case.
  • the unlicensed carrier channel is in an idle state, and the device in the same carrier is occupied.
  • Authorized carrier channel no different system exists on the unlicensed carrier channel;
  • the non-authorized carrier channel is different, the unlicensed carrier channel is unavailable, and the non-authorized carrier channel is unavailable.
  • the authorized carrier channel has been occupied by devices in other systems or different carriers.
  • the first threshold value when the energy on the CCA detection pattern or the Muting pattern is less than the first threshold, the first threshold value can be adjusted.
  • the transmission equipment in the same system as the carrier can perform CCA detection on resources other than the configured CCA detection pattern or Muting pattern or on the entire bandwidth.
  • the detection process is as follows:
  • the transmission device Determining that the transmission device can be occupied with the occupied channel if the energy detected on the resource corresponding to the complement of the corresponding CCA detection pattern or the Muting pattern or the entire bandwidth is greater than the first threshold value and less than the second threshold value Reusing with transmission equipment in the operator;
  • the unlicensed carrier is unavailable, and the unlicensed carrier is being transmitted by other. Used by devices or devices in different carriers.
  • the energy detected by the transmission device on the resource corresponding to the CCA detection pattern or the Muting pattern satisfies the first threshold
  • the energy detected on the resource corresponding to the corresponding CCA detection pattern or the Muting pattern complement is greater than the first gate.
  • the limit value is less than the second threshold value.
  • the information may be sent on all frequency domain resources except the configured Muting pattern.
  • the same CCA detection pattern may be adopted between the base stations in the same carrier, and the adopted pattern may include one of the following: at least one of the plurality of base stations of the operator selects or determines to be used from the CCA pattern set.
  • One or more patterns detected by the CCA at least one of the plurality of base stations notifying the other base station of the parameters used by the one or more patterns or the constituent patterns through the X2 interface, wherein one or more patterns are used as the CCA detection pattern or the Muting pattern
  • the same CCA detection pattern or Muting pattern used by the base station in the same operator is determined in a predefined manner; or the base station obtains the parameters used in the CCA pattern through the OAM background configuration, thereby obtaining the pattern used in the CCA detection.
  • the CCA detection pattern may be obtained by, but not limited to, the following: the base station broadcasted by the user equipment notifies the user equipment to obtain the CCA detection pattern; the CCA detection pattern is obtained through the DCI indication; and the CCA detection is obtained by the SIM card embedding the CCA pattern parameter configuration. Pattern; obtain a CCA inspection pattern in a predefined manner.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.
  • a channel clean evaluation and detection device is also provided, which is used to implement the above-mentioned embodiments and optional embodiments, and has not been described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • the apparatus includes: an obtaining module 22 and a detecting module 24, wherein the obtaining module 22 is configured to obtain a channel clean evaluation CCA detecting. A pattern or a silent Muting pattern; the detection module 24 is coupled to the acquisition module 22 for performing CCA detection on the unlicensed carrier channel on the resource corresponding to the CCA detection pattern or on the resource corresponding to the Muting pattern.
  • the obtaining module 22 is configured to: obtain a CCA detection pattern or a Muting pattern according to the parameter, where the parameter includes at least one of the following: a time domain start position, a frequency domain start position, a time domain continuous resource length, and a frequency.
  • the parameter includes at least one of the following: a time domain start position, a frequency domain start position, a time domain continuous resource length, and a frequency.
  • the foregoing time domain start position may include at least one of the following: a time domain start subframe index number, an OFDM symbol index number in a subframe corresponding to the time domain start subframe index number, and a time domain starter.
  • the time slot index number is a first predetermined value, indicating a first half time slot in a subframe; and the time slot index number is a second predetermined value, indicating a second half time slot in a subframe; wherein, the first half time slot Both the slot and the second half slot include 6 or 7 OFDM symbols, the smallest OFDM symbol index number in each slot is 0, and the largest OFDM symbol index number is 5 or 6.
  • the first predetermined value may be 0, and the second predetermined value may be 1.
  • the foregoing frequency domain start location may include at least one of: an index number of a frequency domain starting physical resource block PRB, an index number of a starting resource particle RE in each PRB in the frequency domain, and an RE on a frequency domain.
  • the index of the start position relative to the RE on the entire bandwidth the index number of the frequency domain start resource block group RBG, the index number of the frequency domain start resource particle group REG, and the frequency domain start subband index.
  • the length of the foregoing time domain contiguous resource may include at least one of the following: a number of consecutive OFDM symbols in the time domain, and a number of consecutive subframes in the time domain.
  • the length of the foregoing frequency domain contiguous resource may include at least one of the following: a number of consecutive PRBs in the frequency domain, a number of consecutive REs in the frequency domain, a number of consecutive RBGs in the frequency domain, and a continuous frequency domain.
  • the interval between the foregoing time domain resources may include at least one of the following: an OFDM symbol number or a subframe number or a frame number between a previous resource and a next resource in the time domain, and a previous resource in the time domain
  • the number of OFDM symbols or the number of subframes or frames between the next resource block, the number of OFDM symbols or the number of subframes or frames between the previous resource block and the next resource in the time domain, and the last resource block in the time domain The number of OFDM symbols or the number of subframes or frames between the next resource block.
  • the number of symbols between two time domain resources and/or resource blocks refers to from the end symbol position of the previous resource and/or resource block to the start symbol of the next resource and/or resource block.
  • the number of symbols refers to from the end symbol position of the previous resource and/or resource block to the start symbol of the next resource and/or resource block.
  • the interval between each time domain resource and/or resource block may be the same or different.
  • the number of OFDM symbols included in each time domain resource block may be the same or different.
  • the interval between the foregoing frequency domain resources may include at least one of the following: a PRB number included between one PRB and a next PRB in the frequency domain, and a PRB block and a next PRB block included in the frequency domain.
  • the number of PRBs; the number of PRBs included between one PRB and the next PRB block in the frequency domain; the number of PRBs included between one PRB block and the next PRB in the frequency domain; and the content between one RE and the next RE in the frequency domain The number of REs; the number of REs contained between one RE block and the next RE block in the frequency domain; the number of REs contained between one RE and the next RE block in the frequency domain; between one RE block in the frequency domain and the next RE Number of REs included; number of RBGs or RBs included between one RBG and the next RBG in the frequency domain; number of RBGs or RBs included between one RBG and the next RBG block in the frequency domain; one RBG block in the frequency domain Number of RBGs or RB
  • the number or interval of PRBs between two frequency domain PRBs and/or PRB blocks refers to the beginning PRB of the next PRB and/or PRB block from the end PRB position of the previous PRB and/or PRB block.
  • the number of PRBs between the two; and/or the number or interval of REs between the two frequency domain REs and/or RE blocks means from the end RE position of the previous RE and/or RE block to the next RE resource block
  • the number or spacing of PRBs between the frequency domain PRB and/or PRB blocks may be the same or different; and/or the number or spacing of REs between the frequency domain RE and/or RE blocks may be the same or different; and/ Alternatively, the intervals between the frequency domain RBG and/or RBG blocks may be the same or different.
  • the number of REs included in each frequency domain RE block may be the same or different; and/or the number of PRBs included in each frequency domain PRB block may be the same or different; and/or each frequency domain RBG block
  • the number of RBGs/PRBs included may be the same or different; and/or the bandwidth of each sub-band may be the same or different.
  • the number of subframes or the transmission burst burst length in the foregoing time domain may include at least one of the following: the number of frames, the number of subframes, the number of OFDM symbols, the number of consecutive occupied subframes, and the number of consecutive occupied OFDM symbols.
  • the frequency domain bandwidth may include one of the following: a value of the frequency domain bandwidth, a total number of PRBs corresponding to the frequency domain bandwidth, a total number of REs corresponding to the frequency domain bandwidth, a total number of RBGs corresponding to the frequency domain bandwidth, and a corresponding frequency domain bandwidth.
  • the total number of sub-bands may include one of the following: a value of the frequency domain bandwidth, a total number of PRBs corresponding to the frequency domain bandwidth, a total number of REs corresponding to the frequency domain bandwidth, a total number of RBGs corresponding to the frequency domain bandwidth, and a corresponding frequency domain bandwidth.
  • the value of the frequency domain bandwidth may be one of the following: 5 MHz, 10 MHz, 15 MHz, 20 MHz.
  • the CCA detection pattern or the Muting pattern is formed by at least one of the following frequency domain parameters and at least one of the following time domain parameters, wherein the parameters constituting the frequency domain pattern may include at least one of the following: a frequency domain The entire bandwidth, the PRB starting index number in the frequency domain, the number of consecutive PRBs in the frequency domain, the interval between PRBs and/or PRB blocks in the frequency domain, the starting RE index number in the starting PRB in the frequency domain, and the frequency domain Upper RE start index number, number of consecutive REs in the frequency domain, interval between RE and/or RE blocks in the frequency domain, RBG start index number in the frequency domain, number of consecutive RBGs in the frequency domain, RBG in the frequency domain And/or an interval between RBG blocks, a subband start index number in the frequency domain, a subband bandwidth, an interval of subbands in the frequency domain; and/or parameters constituting the time domain pattern may include at least one of the following: The entire time domain resource, the starting frame index number in the time domain, the starting sub
  • a pattern of at least one of the following may be determined according to parameters constituting the frequency domain pattern: a frequency domain pattern of a RE level, a frequency domain pattern of a PRB level, a frequency domain pattern of an RBG level, and a frequency domain pattern of a subband level; And/or determining a pattern of at least one of the following according to parameters constituting the time domain pattern: an entire time domain; a pattern of consecutive resource blocks in the time domain; equal intervals in the time domain, and each time domain resource or resource block The same time domain pattern; the time domain is equally spaced, and each time domain resource or resource block size is not the same time domain pattern; the time domain is not equally spaced, and the size of each time domain resource or resource block The same time domain pattern; the time domain is not equally spaced, and each time domain resource or resource block size is not the same as the time domain pattern.
  • the frequency domain pattern of the foregoing RE level may include at least one of the following: a frequency domain pattern formed by one RE in each PRB and a RE in each PRB; the RE patterns on each PRB are the same, and one A frequency domain pattern composed of a plurality of consecutive REs in the PRB; the RE patterns on each PRB are the same, and the intervals of one PRB are equal, and the frequency domain pattern of each RE or RE block is equal in size; the RE on each PRB The same pattern, and a PRB with equal intervals, each RE or RE block size is not equal to the frequency domain pattern; the RE pattern on each PRB is the same, and a PRB Unequal interval, the frequency domain pattern formed by equalizing the size of each RE or RE block; the RE pattern on each PRB is the same, and the frequency domain pattern of each RE or RE block size is not equal, and the size of each RE or RE block is not equal; A frequency domain pattern in which the entire bandwidth is equal, and each RE or RE block is equal in size; the entire bandwidth is equally
  • the frequency domain pattern of the foregoing PRB level may include at least one of the following: a frequency domain pattern formed by equal equal intervals in the entire frequency domain, and each PRB or PRB block size is equal; the entire bandwidth is equal, and each interval is equal to each PRB. Or the frequency domain pattern formed by the unequal PRB block size; the frequency domain pattern formed by the equal size of each PRB or PRB block in the entire bandwidth; the entire bandwidth, unequal intervals, the size of each PRB or PRB block is not Equal frequency domain pattern.
  • the frequency domain pattern of the foregoing RBG level may include at least one of the following: a frequency domain pattern formed by equal equal intervals in each frequency domain, and each RBG or RBG block size is equal; the entire bandwidth is equal, and each interval is equal to each RBG. Or a frequency domain pattern formed by unequal RBG block sizes; a frequency domain pattern of equal unequal intervals, each RBG or RBG block size is equal in bandwidth; the entire bandwidth is unequal, and each RBG or RBG block size is not Equal frequency domain pattern.
  • the frequency domain pattern of the subband level includes one of the following: a frequency domain pattern formed by equal bandwidths in the entire frequency domain, and equal bandwidths of the subbands; and the equal bandwidths of the subbands are equal in the entire frequency domain; The frequency domain pattern; the frequency domain pattern formed by the equal bandwidth of the subbands in the entire frequency domain; the frequency domain pattern formed by the unequal intervals and the subband bandwidths are not equal in the entire frequency domain.
  • the pattern of the time-frequency domain can be obtained according to the combination of the frequency domain pattern and the time domain pattern.
  • the frequency domain resource pattern does not change with time; or, as time increases, the frequency domain resource pattern is sequentially decreased or incremented; or, the time domain pattern Continuously, the continuous pattern in the frequency domain is successively decreasing or increasing; or, the pattern in the time domain is continuous, and the discrete patterns in the frequency domain are successively decreasing or increasing; or, the patterns in the time domain are discrete, and the continuous patterns in the frequency domain are successively decreasing or It is incremental; or, the pattern in the time domain is discrete, and the discrete patterns in the frequency domain are successively decreasing or increasing; or, the patterns in the time domain are successively increasing sequentially, and the discrete patterns in the frequency domain are successively decreasing or increasing.
  • the foregoing detecting module 24 is configured to: configure different CCA detection patterns or Muting patterns by different operators; and/or, similar to the CCA detection pattern or Muting pattern of the transmission equipment configuration in the same system as the operator; and/or A different CCA detection pattern or Muting pattern is configured with different transmission equipment in the same system as the operator.
  • the detecting module 24 is configured to: determine, if the energy detected on the resource corresponding to the corresponding CCA detection pattern or the Muting pattern is less than the first threshold, at least one of the following: the unlicensed carrier channel is idle. The state, the device in the same carrier has occupied the unlicensed carrier channel, and the system does not exist on the unlicensed carrier channel; the detected energy on the corresponding CCA detection pattern or the resource corresponding to the Muting pattern is greater than the first threshold. Next, at least one of the following is determined: an inter-system exists on the unlicensed carrier channel, an unlicensed carrier channel is unavailable, and the unlicensed carrier channel is occupied by devices in other systems or different carriers.
  • the first threshold can Adjusted.
  • the detecting module 24 is configured to: the energy detected on the resource corresponding to the complement of the corresponding CCA detection pattern or the Muting pattern or the entire bandwidth is greater than the first threshold, and less than the second threshold. In case, it is determined that the transmission device can be multiplexed with the transmission device in the same carrier of the occupied channel; the energy detected on the resource corresponding to the complement of the corresponding CCA detection pattern or the Muting pattern or the entire bandwidth is smaller than the first gate.
  • the unlicensed carrier channel is in an idle state; if the energy detected on the resource corresponding to the complement of the corresponding CCA detection pattern or the Muting pattern is greater than the second threshold value, one of the following is determined: The unlicensed carrier is in an unavailable state, and the unlicensed carrier is being used by other transmission devices or devices in different carriers.
  • the transmission device that performs the LBT process with random backoff to stop the current LBT process, and reconfigure the random backoff value N according to the time domain time length of the Muting pattern, or The LBT Cat2 mechanism is implemented immediately.
  • the newly configured random backoff value N satisfies the fact that it can be decremented to 0 before the time point of the Muting pattern time domain end.
  • the transmission device considers that the usage right of the unlicensed carrier is acquired, the information is sent on all frequency domain resources except the configured Muting pattern.
  • the foregoing apparatus is further configured to: use the same CCA detection pattern between the base stations in the operator.
  • using the same CCA detection pattern or Muting pattern between the base stations in the operator may include one of the following: at least one of the multiple base stations of the operator selects or determines from the CCA pattern set to be used for CCA detection.
  • One or more patterns at least one of the plurality of base stations notifying the other base station of the parameters used by the one or more patterns or the constituent patterns through the X2 interface, wherein one or more patterns are used as the CCA detection pattern or the Muting pattern, or
  • the same CCA detection pattern or Muting pattern used by the base station in the same carrier is determined in a predefined manner; or the base station obtains the parameters used for the CCA pattern through the OAM background configuration, thereby obtaining the pattern used in the CCA detection.
  • the foregoing apparatus is further configured to: obtain, by the user equipment, a CCA detection pattern by using a base station broadcast notification connected by the user equipment; the user equipment acquires a CCA detection pattern by using a DCI indication; and the user equipment acquires the CCA pattern parameter configuration by using the SIM card.
  • the CCA detects the pattern; the user equipment acquires the CCA detection pattern in a predefined manner.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a software for performing the technical solutions described in the above embodiments and preferred embodiments.
  • Embodiments of the present invention also provide a storage medium.
  • the above storage medium may be configured to store program code for performing the following steps:
  • Step S102 acquiring a channel clean evaluation (CCA) detection pattern or a muting pattern
  • Step S104 Perform CCA detection on the unlicensed carrier channel on the resource corresponding to the CCA detection pattern or on the resource corresponding to the Muting pattern.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • An alternative embodiment of the present invention provides a clean channel evaluation pattern design method and apparatus.
  • the device mentioned in the optional embodiment of the present invention may be a base station or a user equipment (such as a terminal).
  • CCA detection on a specific Muting RE pattern or a specific Muting PRB pattern in which the same operator uses the same Muting RE pattern or Muting PRB pattern for CCA detection, using different Muting RE patterns or Muting between different operators The PRB pattern was tested by CCA.
  • different Muting RE patterns or Muting PRB patterns can be used between different devices (groups) in the same system as the operator, and the same Muting RE pattern or Muting PRB pattern can also be used.
  • An alternate embodiment of the present invention provides a clean channel assessment pattern design method as described below.
  • the channel is determined to be idle.
  • the detection threshold A is set to -62 dBm, or Offset a positive/negative [0,10] or [0,M] value based on -62dBm, where M is a positive integer, in which case the energy detected over the entire bandwidth is derived from The energy accumulation of the LAA system and the Wi-Fi system cannot distinguish which system the energy comes from.
  • the CCA detection threshold is appropriately adjusted (for example, the current CCA detection threshold is lowered) to achieve multiplexing; or, the energy is detected on the resources of the Muting RE pattern or the Muting PRB pattern complement, and the threshold C
  • the energy detected on the resources of the Muting RE pattern or the Muting PRB pattern complement is derived from the energy accumulation with the LAA system and/or the heterogeneous system (Wi-Fi system). If the energy accumulated value is less than the threshold C, it is determined that the channel is available. Conversely, the energy accumulated value is greater than the threshold C, determining that the channel is occupied or not available.
  • the thresholds A, B, and C can be set to different values, or can be set to the same value.
  • the threshold B it can be -70 dBm, or the thresholds A, B, and C can be set to -62 dBm plus
  • M is a positive integer.
  • the channel is considered to be available if a channel idle is detected on the corresponding Muting RE pattern or Muting PRB pattern.
  • the LAA device is in the corresponding Muting RE pattern or The energy detected on the Muting PRB pattern is close to zero; in the case of considering a different system, it is necessary to determine whether the channel is idle according to the above method of threshold B.
  • the threshold value C it is determined whether the energy on the resource complementary to the Muting RE pattern or the Muting PRB pattern satisfies the requirement, thereby determining whether the channel is being used by the node of the same system, thereby determining whether the channel can be reused. .
  • An alternative embodiment of the present invention sets forth the design of the Muting pattern, which can be applied to the non-occupied period of the channel, the transmission of the reserved signal or the initial signal period, and the data transmission period.
  • the transmission device does not send information or transmit zero power on the corresponding Muting pattern.
  • Other transmission devices can detect on the Muting pattern to identify the interference source (the interference source comes from other LAA nodes or different systems, optional It is necessary to determine whether the received signal is from a LAA node in the operator or a LAA node in a different operator or a node in a different system. In addition, the detection may be performed on resources other than the Muting pattern or the entire bandwidth. In order to know if multiplexing can be achieved.
  • the Muting pattern may be a Muting RE-level pattern or a Muting PRB-level or Muting RBG-level or Muting sub-band pattern.
  • the alternative embodiment is described and described with respect to the Muting pattern.
  • the transmission device may also be a transmission device group.
  • the transmission device or the transmission device group may be a base station device or a user equipment UE.
  • the optional embodiment mainly describes a CCA detection pattern when the transmission device performs channel idle detection at different stages, and how the transmission device to be multiplexed identifies whether the interference source is from a transmission device in the same carrier or a different operator.
  • the transmission device, or the interference source is from a transmission device in the same system under the same carrier or a node in a different system.
  • the energy detected on the corresponding Muting resource satisfies the preset CCA threshold.
  • the CCA detection threshold can be adjusted, which facilitates the access of the transmission device in the same system to the unlicensed carrier.
  • the transmission device considers that the usage right of the channel is obtained, or the transmission device detects the CCA through the CCA.
  • the pattern is energy judged to identify whether the interference source is from the system or a different system, thereby improving the multiplexing efficiency.
  • different phases include a channel contention access phase before the non-occupied channel, a reserved signal or an initial signal phase in which the contention channel succeeds and does not start to transmit, and a data transmission phase.
  • different CCA detection patterns or Muting patterns are configured, wherein different CCA detection patterns or Muting patterns are orthogonal to each other in the frequency domain.
  • CCA detection patterns or Muting patterns are orthogonal to each other in the frequency domain.
  • the transmission device first receives the energy on the entire bandwidth, and then acquires the pattern in the frequency domain by changing in the time-frequency domain, and then performs energy judgment on the corresponding Muting resource. And energy judgments on resources other than Muting resources or on the entire bandwidth. It is assumed here that the multiplexed devices are synchronized.
  • the transmission device may perform the idle detection of the channel according to the CCA detection pattern of one of the following:
  • Design 1 The transmission device performs CCA detection over the entire frequency domain bandwidth.
  • the transmission device If the energy detected by the transmission device over the entire frequency domain bandwidth satisfies the preset CCA threshold, it evaluates the detected signal. If the channel is idle, the transmission device considers the channel available. Conversely, if the detected energy over the entire bandwidth is greater than the preset CCA threshold, which evaluates that the detected channel is busy, the transmitting device considers the channel to be occupied.
  • Design 2 The transmission device performs channel idle evaluation CCA detection on a specific Muting RE or Muting RB over the entire frequency domain bandwidth. If the energy detected by the transmission device on the corresponding Muting RE or RB satisfies the preset CCA threshold 1, the evaluation channel is idle, or the system on the evaluation channel (eg, Wi-Fi system) exists.
  • the preset CCA threshold 1 can be configured as a Q value, for example: Q value is -62dBm, or can be set to Q value plus a positive or negative [0, 20] or [0, M] The value after a positive integer value, M is a positive integer.
  • the CCA detection threshold may be adjusted (eg, boosted) to the CCA threshold 2. That is, if the preset CCA threshold 1 is -62dBm, it is promoted to the CCA threshold 2, for example: -52dBm. The purpose is to make it easier to access unlicensed carriers with transmission equipment in the system.
  • the CCA detection is performed on a resource other than the Muting RE or the RB or the entire bandwidth in the entire frequency domain bandwidth. If the estimated energy is less than the preset threshold 1, the channel is considered to be idle, or no device is on the channel. use.
  • the transmission device If the estimated energy is greater than the preset CCA threshold 1 and less than the CCA threshold 2, the transmission device considers that the channel is available, or the transmission device considers that the channel satisfies the multiplexing condition and can be multiplexed.
  • the adjustment CCA detection threshold may be raised or decreased according to a preset offset Offset. Offset offset can be ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5, ⁇ 6, ⁇ 7, ⁇ 8, ⁇ 9, ⁇ 10, ⁇ 11, ⁇ 12,... ⁇ m,m is an integer, That is, the CCA threshold 2 can be determined by a preset CCA threshold 1 + Offset offset.
  • the threshold 2 On the other hand, if it is greater than the threshold 2, the channel is considered to be unavailable, or the condition of multiplexing is not satisfied, or the channel is being occupied.
  • Design 3 The transmission device Muting a specific RBG or RBG block over the entire bandwidth, performs CCA detection on the corresponding RBG or RBG block of Muting, and considers that the channel is available if the channel is detected to be idle. (The CCA detection method on Muting's resources and on the entire bandwidth or resources other than Muting resources is the same as above). Conversely, if the corresponding Muting RBG or RBG block detects that the channel is not idle, then the channel is considered unavailable.
  • the number of RBs included in one RBG is related to the system bandwidth, and the number of RBGs included in one RBG block can be predefined. Muting specific RBG or RBG blocks may be equally spaced across the entire frequency domain bandwidth, or unequal intervals.
  • the system bandwidth is 20 MHz (equivalent to 100 RBs), and one RBG size is 4, that is, there are 4 RBs in one RBG, and 25 RBGs are included in the 20 MHz system bandwidth.
  • the interval can be RBG or RB.
  • Design 4 The transmission device Muting a specific subband over the entire bandwidth, performs CCA detection on the corresponding Muting subband, and considers the channel available if the channel is detected to be idle. (The CCA detection method on Muting's resources and on the entire bandwidth or resources other than Muting resources is the same as above). Conversely, if it is detected that the channel is not idle, then the channel is considered unavailable. For example, if the system bandwidth is 10 MHz and the subband bandwidth is 5 MHz, the transmission device can Muting the upper sub-band or the lower sub-band over the entire bandwidth, and performing CCA detection on the corresponding sub-band, if the detected energy satisfies the corresponding When the CCA threshold is preset, the channel is considered available.
  • the preset CCA threshold can be set to -62dBm.
  • the preset CCA threshold can be set to -62dBm or -52dBm.
  • the preset CCA threshold can be set to -82dBm.
  • the specific Muting pattern may be one of the following: dividing the entire bandwidth into K consecutive PRB blocks or RE blocks or RBG blocks or K sub-bands, the entire bandwidth may be allocated to K transmission devices, and each transmission Equipment configuration Muting
  • the patterns are orthogonal to each other, and they all perform CCA detection on respective resource blocks (PRB blocks or RE blocks or RBG blocks or sub-bands); equally spaced Muting PRB or PRB blocks or Muting RE or RE throughout the bandwidth
  • the CCA test is performed on the pattern composed of the blocks. For example, suppose there are two transmission devices, and each PRB or PRB block or RE block has only one PRB or RE, and the PRB index or the RE-indexed frequency domain resource pattern is the CCA detection time of one of the two devices.
  • the pattern composed of the PRB or RE of the even index number is the corresponding frequency domain pattern when another device performs CCA detection; the unequal interval PRB (or PRB group) or RE (or the entire bandwidth) Performing CCA detection on the resource pattern composed of the RE group; performing CCA detection on resource patterns composed of equally spaced or unequally spaced RBG or RBG blocks over the entire bandwidth; equally spaced or unequal intervals over the entire bandwidth Perform a CCA test on the resource pattern with the composition.
  • Zero power transmission is performed on the PRB or RE or RBG or subband resources. That is, Muting specific PRB or RE or RBG or sub-band pattern. It is used for determining whether the channel is available when the communication device accesses the channel, or the transmission device for providing multiplexing is identified by the operator or the different operator or the different system, so as to determine whether it can be reused.
  • the reserved signal or the initial signal needs to be transmitted.
  • the reserved signal or the initial signal may be sent in full bandwidth in the frequency domain, or may be sent in a frequency domain according to a specific Muting pattern.
  • the reservation signal is transmitted in the time domain from the LBT execution success time until the transmission time or the start of the subframe boundary.
  • the Muting pattern may be a resource consisting of consecutive PRBs (or PRB blocks) or REs (or RE blocks) in the entire bandwidth; or a plurality of discrete specific PRBs (or PRB groups) with a certain interval in the entire bandwidth. ) or a resource consisting of REs (or RE groups).
  • the interval between the PRB (or PRB group) or the RE (or the RE group) may be the same or different, and/or the number of PRBs or REs included in each PRB group or RE group may be the same or different; or a resource consisting of a specific continuous RBG (or RBG block) in the entire bandwidth; or a resource pattern composed of a plurality of discrete specific RBGs (or RBG blocks) having a certain interval in the entire bandwidth; or, in the entire bandwidth A resource consisting of specific subbands.
  • the reserved signal or initial signal pattern is composed of Muting pattern and Muting pattern complement.
  • the pattern can be of the RE or RB or RBG or sub-band level.
  • a subband may be a resource that includes several RBs, REs, or RBGs.
  • the pattern used for the reserved signal or the initial signal period may be the same as or different from the CCA detection pattern or the Muting pattern of the channel competing access phase before the non-occupied channel.
  • the transmission device to be multiplexed or the transmission device that continues to perform the LBT process transmits the reserved signal or the initial signal phase in the transmission device that has successfully completed the LBT process, and the criterion for determining whether the channel is available or available for reuse by the CCA detection is the same as above. .
  • the purpose of the transmission device to transmit the reserved signal or the initial signal is to occupy the channel on the one hand so as not to be taken away by other transmission equipment; on the other hand, the transmission equipment under the same operator can Identifying whether the channel is available or multiplexed, or the channel is being occupied by a device under the same operator, and the channel is considered to be idle from the same system multiplexing perspective; in addition, it can be used to provide system synchronization or to transmit a specific reference signal, such as : PSS/SSS, CRS, SRS, etc.
  • the channel is considered to be available in the following manner: the device (or the multiplexed device) can parse the information on the corresponding reserved signal resource. And determining whether the channel is occupied by a device in the same carrier or a UE in the same cell. If the received information is correctly parsed, then The channel is considered to be available. Or receiving the energy of the entire bandwidth, and obtaining the frequency domain pattern after performing the time-frequency domain change.
  • the transmission device (or the multiplexed device) has a Muting resource or zero power corresponding to the reserved signal or the initial signal. The resource performs idle detection of the channel.
  • the CCA detection threshold may be adjusted.
  • the adjusted CCA threshold is used in a slot time in the time domain or an OFDM symbol time or a subframe time or a transmission burst time.
  • the transmission device performs CCA detection on the Muting pattern complement or the zero power transmission resource complement, or performs CCA detection on the entire bandwidth.
  • the CCA threshold at this time may adopt the adjusted CCA threshold or adopt a preset.
  • the CCA detection threshold if the detected energy is less than the adjusted CCA threshold and greater than the preset threshold, the transmission device considers the channel available or can be reused. When the CCA detection is less than the preset threshold on the entire bandwidth or Muting pattern complement or zero power transmission resource complement, the transmission device considers the signal to be idle. If the CCA detection energy is greater than the preset threshold on the entire bandwidth or Muting pattern complement or zero power transmission resource complement, and is also greater than the reusable CCA detection threshold, the channel is considered unavailable, or the transmission device is not reusable. Detect the channel.
  • the preset CCA threshold can be configured to -62dBm, or it can be set to a value of -62dBm plus a positive or negative value of [0,20] or a positive integer value between [0,M], M Is a positive integer, such as -70dBm.
  • the CCA detection threshold is raised to a threshold of -52 dBm. Adjusting the CCA detection threshold can be raised or lowered according to the preset offset Offset.
  • the Offset offset can be ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5, ⁇ 6, ⁇ 7, ⁇ 8, ⁇ 9, ⁇ 10, ⁇ 11, ⁇ 12,... ⁇ m,m is an integer.
  • the elevated CCA threshold can be -52dBm + Offset.
  • the CCA detection pattern or the Muting pattern used in the channel competition access phase before the reserved signal or initial signal phase and the non-occupied channel may be a RE level or a RB level or an RBG level or a subband level, preferably configured as an RB or RBG or Sub-band level, sub-selection, configured as RE level pattern.
  • the time domain can be a contiguous resource (block). But it is not limited to this.
  • the base station can perform data transmission once the LBT process is completed. Or send a reserved signal until the sub-frame boundary starts data transmission. .
  • the CCA detection opportunity is increased during the data transmission period, and the base station for the same carrier can use the time-frequency domain pattern of the Muting period of the data transmission period to identify that the channel is being used by the base station under the same carrier or different.
  • the base station in the carrier is occupied by a node in a different system.
  • Whether the current channel is available is determined by using different time and/or frequency domain data transmission period CCA detection patterns between different operators or base stations in different operators.
  • the base station of the same system adopts the same CCA detection pattern, so that CCA detection is performed on a specific frequency domain resource in a specific time domain position corresponding to the data transmission period, and it is determined whether the channel is available or the multiplexing criterion is the same as above, or whether the difference exists.
  • the system, or whether it is occupied, is also the same as above.
  • the LBT Cat4 process or the base station that is performing the LBT process is specified at a corresponding specific time domain position.
  • the energy detected by the base station on the resource corresponding to the CCA detection pattern or the Muting pattern satisfies the first CCA threshold, and is detected on the corresponding CCA detection pattern or the resource corresponding to the Muting pattern complement.
  • the transmission device that performs the LBT process with random backoff may stop the current LBT process, according to The time domain length of the Muting pattern reconfigures the random backoff value N, or immediately executes the LBT Cat2 mechanism, or continues to perform the current LBT process.
  • the newly configured random backoff value N satisfies the fact that it can be decremented to 0 before the time point of the Muting pattern time domain end.
  • the UE For the UE side, if the time at which the LBT procedure is completed happens to be at the subframe boundary or at the corresponding start transmission time, the UE starts data transmission. In order to achieve or improve uplink multi-user multiplexing, certain CCA detection opportunities are added during the data transmission period.
  • Implementing multiplexing or identifying whether a UE in the same cell or a UE in the same carrier is using a Physical Uplink Shared Channel (PUSCH) resource, which can be a specific time domain resource in the data transmission period.
  • PUSCH Physical Uplink Shared Channel
  • the CCA test is performed in accordance with a specific Muting RE or PRB or RBG or sub-band pattern.
  • the resources on the entire bandwidth of the Muting may be used for the user equipment to be multiplexed or the user equipment that is performing CCA detection or the user equipment that is ready for CCA detection to perform CCA detection on a specific time domain resource location in the data transmission period.
  • the specific time domain resource may be the entire data transmission period, or discrete K OFDM symbols (blocks), or discrete K time periods.
  • the time period is the occurrence of a period or the occurrence of an aperiod, and the time domain time periods are equally spaced or unequal intervals.
  • the length of each time period or OFDM symbol block may be the same or different.
  • the access signal or the initial signal node differs from the channel before the non-occupied channel in the access phase, in which one or more specific time domain resources are Muting in the transmission burst or in the transmitted subframe.
  • Muting or zero power transmission is performed on a specific frequency domain resource on the front or middle or last one or two OFDM symbols in each subframe.
  • a specific OFDM symbol in each slot in the subframe or a certain subframe or a certain symbol or a certain interval Muting pattern of time.
  • the frequency domain pattern of the data transmission period may be the same as or different from the pattern used for the reserved signal or the initial signal period, and the CCA detection pattern or the Muting pattern of the channel competition access stage before the non-occupied channel.
  • the CCA detection pattern or the Muting pattern of the data transmission period is preferably a Muting RE level pattern.
  • the parameters involved in obtaining the CCA pattern include at least one of the following:
  • Time domain start position frequency domain start position, time domain continuous resource length, frequency domain continuous resource length, time domain resource interval, frequency domain resource interval, time domain transmission subframe number or Transmit burst burst length, frequency domain bandwidth.
  • the start of the time domain includes at least one of the following:
  • a time domain start subframe index number an OFDM symbol index number in a subframe corresponding to the time domain start subframe index number, and a time slot index number corresponding to the time domain start subframe index number, when The orthogonal frequency division multiplexing OFDM symbol index number in the slot index number corresponding to the domain start subframe index number.
  • the starting position of the frequency domain includes at least one of the following:
  • the index number of the starting physical resource block PRB in the frequency domain, the index number of the starting resource particle RE in each PRB in the frequency domain, the index number of the RE starting position in the frequency domain relative to the RE over the entire bandwidth, and the frequency domain start The index number of the resource block group RBG, the index number of the frequency domain start resource particle group REG, and the frequency domain start subband index.
  • the length of the time domain contiguous resource includes: the number of consecutive OFDM symbols in the time domain, and the number of consecutive subframes in the time domain.
  • the length of the frequency domain continuous resource includes at least one of the following:
  • the number of consecutive PRBs in the frequency domain the number of consecutive REs in the frequency domain, the number of consecutive RBGs in the frequency domain, the number of consecutive REGs in the frequency domain, and the number of consecutive subbands in the frequency domain.
  • the interval between time domain resources includes: the number of OFDM symbols or the number of subframes or the number of frames or the length of time between the previous resource and the next resource in the time domain, between the previous resource and the next resource block in the time domain.
  • the number of OFDM symbols or the number of subframes or the number of frames or the length of time, the number of OFDM symbols or the number of subframes or the number of frames or the length of time between the previous resource block and the next resource in the time domain, and the last resource block in the time domain The number of OFDM symbols or the number of subframes or the number of frames or the length of time between the next resource block.
  • the resource block includes at least one OFDM symbol
  • the number of symbols or the number of subframes or the number of frames or the length of time between two resource blocks refers to starting from the end position of the previous resource block to the next resource block.
  • the length of time between one resource block and the next resource block in the time domain wherein the resource block is a length of time in which the time domain is continuous.
  • the spacing between time domain resources may be OFDM symbol level, or sub-frame level, or frame level, or continuous time t.
  • the interval between the frequency domain resources includes at least one of the following: the number of PRBs included between one PRB and the next PRB in the frequency domain; the number of PRBs included between one PRB block and the next PRB block in the frequency domain; The number of PRBs included between one PRB and the next PRB block; the number of PRBs included between one PRB block and the next PRB in the frequency domain; the number of REs included between one RE and the next RE in the frequency domain; The number of REs included between one RE block and the next RE block; the number of REs included between one RE and the next RE block in the frequency domain; the number of REs included between one RE block and the next RE in the frequency domain; The number of RBs included between one RBG and the next RBG in the domain; the number of RBs or subbands included between one subband and the next subband in the frequency domain;
  • the number of transmission subframes or the transmission burst burst length in the time domain includes at least one of the following: the number of consecutively occupied subframes, the number of subframes that are continuously used when the CCA success time is executed, and the length of the duration of continuous use of the CCA success time.
  • the frequency domain bandwidth includes one of the following: a value of the frequency domain bandwidth, a total number of PRBs corresponding to the frequency domain bandwidth, a total number of REs corresponding to the frequency domain bandwidth, a total number of RBGs corresponding to the frequency domain bandwidth, and the frequency The total number of subbands corresponding to the domain bandwidth.
  • the value of the frequency domain bandwidth is one of the following: 5 MHz, 10 MHz, 15 MHz, 20 MHz.
  • the present invention mainly focuses on a frequency domain pattern composed of Muting specific REs on each PRB in the frequency domain, and a time domain pattern of Muting specific contiguous k OFDM symbols in the time domain, with different time-frequency domain Muting positions. Form different time domain maps for CCA detection.
  • the time domain pattern is related to the length of the transmission burst or the number of subframes.
  • the parameter the index number of the physical resource block PRB in the frequency domain, the index number of the starting resource particle RE in each PRB in the frequency domain, the number of consecutive REs in the frequency domain, and an RE (block) in the frequency domain
  • the number of REs contained between the next RE (blocks) constitutes a detection pattern in the frequency domain.
  • the pattern in the time domain is the starting subframe index number, the starting OFDM symbol index in the starting subframe, and the number of consecutive OFDM symbols constitutes a time domain continuous pattern.
  • FIG. 3 is a schematic diagram 1 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • the index number of the frequency domain starting physical resource block PRB is PRB#0, starting from each PRB.
  • the index number of the initial resource particle RE is RE#3, the number of consecutive REs in the frequency domain is 1, and the number of REs or RBs included between one RE and the next RE in the frequency domain is 11 REs.
  • K OFDM symbols for example, starting from OFDM#12 in subframe subframe#0, consecutive 2 OFDM symbols. Or, starting from OFDM #13, one OFDM symbol is consecutive. This constitutes a time-frequency domain pattern of CCA detection.
  • the Muting region or the zero-power transmission region is composed of the above parameters. It is used for pattern identification with devices in the carrier to determine whether the device in the carrier is using the device or can obtain the usage right or available reuse of the carrier. That is, the transmission device receives the energy of the entire bandwidth, and obtains the frequency domain pattern after performing the time-frequency domain change. Optionally, the transmission device (or the multiplexed device) is on the RE#3 in each PRB over the entire bandwidth. Perform idle detection of the channel. If the detected energy meets the preset CCA threshold, for example, -62dBm, it is considered that there is no different system transmission device on the corresponding resource.
  • the preset CCA threshold for example, -62dBm
  • the CCA detection threshold may be adjusted, for example,: -52 dBm, on the corresponding Muting resource or on the zero-power resource (ie, RE#3 in each PRB) to detect that the energy meets the preset threshold.
  • the transmission device performs CCA detection on the Muting pattern complement or the zero power transmission resource complement, or performs CCA detection on the entire bandwidth.
  • the CCA threshold at this time may adopt the adjusted CCA threshold or adopt a preset.
  • the CCA detection threshold if the detected energy is less than the adjusted CCA threshold and greater than the preset threshold, the transmission device considers the channel available or can be reused. Once the transmission device occupies the channel, it must send information on resources other than the Muting pattern to occupy the channel.
  • the contention access of the channel is performed according to the LBT Cat4, and the minimum contention window is 7, and the maximum contention window is 15, and a random backoff value N is generated in a random manner to be 10, or a predefined random backoff value N
  • the LBT process according to the existing LBT Cat4 process requires a minimum of 2 OFDM symbols
  • the base station on the real-time domain performs CCA detection from the time when the LBT process is started to at least 2 OFDM symbols.
  • FIG. 3 shows only a case where the CCA detection is performed at a time in the frequency domain for a duration of k OFDM symbols in accordance with the third RE resource on each PRB.
  • the number of symbols of the k consecutive OFDM symbols illustrated in FIG. 3 can be configured, or determined according to parameters in the LBT Cat4 mechanism.
  • the base station does not perform the LBT process.
  • the UE side In order to have a fair channel access opportunity between the LAA and the Wi-Fi system, the UE side also needs to perform a channel contention access process similar to the downlink LBT Cat4, but the competition window. It is smaller than the contention window size used by the downlink. Therefore, for the case of cross-carrier scheduling, the UE may need at least one OFDM symbol time for completing the entire LBT process, and may also last for multiple OFDM symbols.
  • the LBT Cat4 process since the LBT Cat4 process has been performed on the base station side, it is preferable to perform a simplified LBT process, such as LBT Cat2 or enhanced LBT Cat2, or fast LBT, before the UE side starts data transmission. process.
  • the UE in the time domain only needs to last for a time domain length of several OFDM symbols, preferably one OFDM symbol or two OFDM symbol time domain lengths.
  • the pattern configuration of 12 different transmission devices can also be implemented on the entire bandwidth, that is, each transmission device performs zero power transmission or silent Muting on a specific RE of 12 REs in each PRB.
  • 12 transmission devices determine the Muting resource in each PRB by using the RE index number and the number of transmission devices to obtain a value obtained by modulo.
  • FIG. 4 is a schematic diagram 2 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 4 shows that the index number of the frequency domain starting physical resource block PRB is PRB#0, starting from each PRB.
  • the index number of the initial resource particle RE is RE#3
  • the number of consecutive REs in the frequency domain is M
  • the number of REs included between one RE block and the next RE block in the frequency domain is 12-M REs, respectively.
  • K OFDM symbols On the time domain are consecutive K OFDM symbols.
  • the time domain length K is related to the parameter configuration value in the LBT mechanism used by the device, or is predefined, or the base station configuration.
  • the following is an example of a Muting M-separated RE (block) with a medium interval between each PRB and a CCA detection pattern composed of k consecutive OFDM symbols in the time domain.
  • FIG. 5 is a third schematic diagram of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 5 is a Muting pattern in a PRB of an equally spaced discrete RE in the frequency domain, ie, a frequency domain starting physics.
  • the index number of the resource block PRB is PRB#0
  • the index number of the starting resource particle RE in each PRB is RE#3
  • the number of consecutive REs in the frequency domain is 1, and one RE block in the frequency domain and the next RE
  • the number of REs included between the blocks is 2 REs
  • the number of discrete REs in one PRB is 4, and the time domain is consecutive K OFDM symbols.
  • the time domain length K is related to the parameter configuration value in the LBT mechanism used by the device, or a predefined configuration, or a base station configuration; the M value may be predefined, or the base station configuration; the interval value of the RE may be predefined. Or base station configuration.
  • FIG. 6 is a schematic diagram 4 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 6 shows Muting in a PRB of equal intervals in a frequency domain and a PRB of the same size in each RE block.
  • the index of the frequency domain starting physical resource block PRB is PRB#0
  • the index number of the starting resource particle RE in each PRB is RE#2
  • the number of consecutive REs in the frequency domain is 2
  • the frequency domain The number of REs included between the previous RE block and the next RE block is 1 RE
  • the number of discrete REs in one PRB is 4, and the time domain is consecutive K OFDM symbols.
  • the discrete RE (or RE block) index number in one PRB and/or the continuous RE length S included in the RE block may be specified in advance, or the base station configuration (or indication); the time domain length K and the LBT mechanism adopted by the device.
  • the parameter configuration value is related to, or, the predefined configuration, or the base station configuration; the M value can be predefined, or the base station configuration, or, according to the total number of REs included in one RB and the number of consecutive REs and each RE ( The number of blocks is implicitly determined.
  • the number of consecutive REs included in each RE block in one PRB may be the same or different.
  • Figure 6 shows that the number of consecutive REs contained in each RE block is the same.
  • FIG. 7 is a schematic diagram 5 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 7 is a Muting in a PRB with equal intervals of discrete RE blocks in the frequency domain and different RE blocks.
  • the pattern that is, the index number of the frequency domain starting physical resource block PRB is PRB#0, the index number of the starting resource particle RE in each PRB is RE#2, and M has 4 discrete Muting RE blocks on one RE.
  • the first RE block is RE#2
  • the second RE block is RE#4 ⁇ RE#6
  • the third RE block is RE#8 ⁇ RE#9
  • the fourth RE block is RE#11 ⁇ RE #12 where the first RE block contains 1 RE, the second RE block contains 3 consecutive REs, and the latter two RE blocks each contain 2 consecutive REs, and between each RE block The interval is 1.
  • On the time domain are consecutive K OFDM symbols.
  • the discrete RE (block) index number in a PRB and/or the continuous RE length S included in the RE block may be specified in advance, or the base station configuration (or indication); the time domain length K and the parameter configuration in the LBT mechanism adopted by the device Value related, or, predefined configuration, or base station configuration; M value can be predefined, or base station configuration, or, according to the total number of REs included in one RB and the number of consecutive REs and each The number of RE (block) intervals is implicitly determined.
  • the number of consecutive REs included in each RE block in one PRB may be the same or different.
  • Figure 7 shows that the number of consecutive REs contained in each RE block is different.
  • the following is an example of a CCA detection pattern formed by unequal intervals of M discrete REs (blocks) in each PRB and k consecutive OFDM symbols in the time domain.
  • FIG. 8 is a schematic diagram 6 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 8 is a Muting pattern in a PRB of discrete REs in unequal intervals in the frequency domain, that is, a frequency domain start.
  • the index number of the physical resource block PRB is PRB#0
  • the index number of the starting resource particle RE in each PRB is RE#3
  • the number of discrete REs in each PRB is 4.
  • four discrete RE position indexes are RE#3, RE#5, RE#9, RE#12. That is, the transmission device performs zero power transmission or Muting silence on RE#3, RE#5, RE#9, RE#12 in each PRB in the entire bandwidth.
  • On the time domain are consecutive K OFDM symbols.
  • the RE index in one PRB may be pre-designated, or the base station configuration (or indication); the time domain length K is related to the parameter configuration value in the LBT mechanism adopted by the device, or a predefined configuration, or a base station configuration;
  • the M value can be predefined or, alternatively, the base station configuration.
  • FIG. 9 is a schematic diagram 7 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • the diagram shown in FIG. 9 is unequal intervals between each RE block on each PRB, and is included in each RE block.
  • each RE block includes 2 consecutive REs; the interval between each RE block is different, and the interval between the first RE block and the second RE block is 2, and the second The interval between the RE block and the third RE block is 4; the discrete RE (block) index number in one PRB and/or the continuous RE length S included in the RE block may be specified in advance, or the base station configuration (or indication)
  • the time domain length K is related to the parameter configuration value in the LBT mechanism adopted by the device, or a predefined configuration, or a base station configuration; the M value may be predefined, or the base station configuration.
  • FIG. 10 is a schematic diagram 8 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • the diagram shown in FIG. 10 is unequal intervals between each RE block on each PRB, and is included in each RE block. Schematic diagram of the number of consecutive REs being different. That is, the index number of the frequency domain starting physical resource block PRB is PRB#0, the index number of the starting resource particle RE in each PRB is RE#1, and the number of discrete REs in each PRB is 3, that is, one There are three discrete Muting RE blocks on the PRB.
  • the first RE block is RE#2
  • the second RE block is RE#5 ⁇ RE#7
  • the third RE block is RE#11 ⁇ RE#12.
  • the first RE block contains 1 RE
  • the second RE block contains 3 consecutive REs
  • the third RE block contains 2 consecutive REs
  • the interval between each RE block is different.
  • the interval between the first RE block and the second RE block is 2, the interval between the second RE block and the third RE block is 3; the discrete RE (block) index number and/or RE in a PRB
  • the continuous RE length S included in the block may be specified in advance, or the base station configuration (or indication);
  • the time domain length K is related to the parameter configuration value in the LBT mechanism adopted by the device, or a predefined configuration, or a base station configuration;
  • the M value can be predefined or, alternatively, the base station configuration.
  • the CCA detection pattern or the Muting pattern in this embodiment is only a special case, but is not limited to the above pattern.
  • the transmission device referring to the base station or the terminal
  • the device group performs the LBT process according to the specific frequency domain pattern described above and the time domain is consecutive k OFDM symbol times.
  • This alternative embodiment is particularly suitable for performing an LBT process before occupying a channel, for the reason The continuous time period is adopted in order to allow the device to fully complete the LBT process, thereby quickly accessing the channel.
  • the frequency domain pattern can also be applied to the reserved signal period and/or the data transmission period, because only the Muting specific RE or PRB resources are used for multiplexing in the reserved signal period and/or data transmission period.
  • the pattern is identified to determine whether the channel is occupied by the same operator or by a different system. In addition, the waste of transmission resources is reduced, and the system performance can be optionally improved.
  • the CCA detection frequency domain pattern used in the LBT process can perform CCA detection on the full bandwidth. For example, if the signal energy received over the entire bandwidth meets certain threshold requirements, the channel is considered idle. Otherwise, the channel is considered unavailable or the channel is already occupied.
  • the CCA detection is performed according to the specific Muting RE or PRB or RBG or sub-band pattern set by the LAA system in the operator, since the LAA system is silent on the corresponding pattern, that is, no signal is transmitted, therefore, the corresponding The Muting RE or PRB pattern is used to detect whether the energy meets the requirement of the CCA threshold X.
  • the threshold is to determine whether there is energy from the different system on the resource. If it is judged that there is no energy from the different system, the channel is considered idle. Only this system exists.
  • the CCA detection threshold can be adjusted, for example, to lower the currently set threshold.
  • the LAA device can also detect the random access preamble (Preamble) sent by the Wi-Fi system to determine whether Wi is present. -Fi system.
  • Preamble random access preamble
  • the ZP-CSI-RS pattern can be used as a transmission device for CCA detection. Due to the current number of frequency domain locations in the ZP-CSI-RS pattern, some zero-power RE resource locations can be appropriately added.
  • the above frequency domain pattern may also be a RE pattern not designed in units of PRB, and may be based on the starting RE index number on the total RE in the entire bandwidth, the number of consecutive REs, between each Muting RE (block) The interval determines Muting's CCA detection RE pattern.
  • a Muting pattern composed of equally spaced REs over the entire bandwidth may be used, or an equal interval and the same RE block size may constitute a Muting pattern, or an equally spaced and different RE block size over the entire bandwidth.
  • Muting pattern, or Muting pattern composed of unequal intervals of RE over the entire bandwidth, or unequal intervals and the same RE block size over the entire bandwidth constitute a Muting pattern, or unequal intervals and different REs over the entire bandwidth Muting pattern composed of block sizes.
  • the pattern is constructed in the same way as the Muting pattern on the above PRB.
  • the present invention mainly focuses on a frequency domain pattern composed of Muting specific REs on each PRB in the frequency domain, and a time domain pattern of Muting specific discrete k OFDM symbols (blocks) in the time domain, by different time
  • the frequency domain Muting position constitutes a different CCA detection time-frequency domain pattern.
  • the time domain pattern is related to the length of the transmission burst or the number of subframes.
  • the time domain pattern is composed of discrete OFDM symbols or OFDM symbol blocks or time segments to form the CCA detection pattern position of the time domain.
  • the frequency domain pattern is the same as in the first embodiment.
  • time domain Muting pattern its time domain pattern is determined by at least one of the following parameters: time domain start frame number, starting subframe number, starting OFDM symbol index number in the starting subframe number, continuous Number of OFDM symbols, each Muting The interval between OFDM symbols (blocks) or time periods, transmission burst length or subframe length.
  • FIG. 11 is a schematic diagram 9 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 11 is a schematic diagram showing the length of the transmission device from the time t0 in the time domain to the end of time t1.
  • time t1 can be any time in a subframe, t1>t0. That is, the transmission device starts CCA detection at time t0, and the available use of the LBT process is t time.
  • FIG. 12 is a schematic diagram 10 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • the time domain pattern shown in FIG. 12 is the last OFDM symbol in one subframe, and each Muting time domain resource in the time domain ( The interval between blocks) is k.
  • k is one subframe.
  • a transmission burst contains 4 subframes.
  • the last OFDM symbol in each subframe is used for transmission equipment for CCA detection.
  • the last OFDM symbol in the first subframe in the burst, the second time domain Muting position in the time domain and the first time domain Muting position are separated by 2 subframes, that is, the second time domain
  • the Muting position is the last OFDM symbol position in the third subframe.
  • the number of resource locations of the Muting in the time domain is related to the length of the transmission burst or the number of consecutive occupied subframes, the starting time domain location, the continuous time domain length, and the interval between the two time domain Muting locations.
  • the time domain location of Muting may be the first OFDM symbol of the subframe or a certain OFDM symbol in the subframe.
  • the time domain pattern shown in FIG. 13 is a 14-S symbol in a time frame starting from a time domain, and a continuous OFDM symbol.
  • the number is S
  • the interval between each successive Muting OFDM symbols is 14-S symbols or P subframes +14-S symbols.
  • the time domain start may be the first S symbols in one subframe, or the middle S OFDM symbols.
  • Each successive Muting OFDM symbol or time period may be a period T, or a non-periodic occurrence. That is, equally spaced time domain patterns, or unequal interval time domain patterns.
  • each time slot pattern in one subframe may be the same, but the time slot pattern may also appear in a unit cycle period, or may appear in a time slot unit cycle.
  • the following examples are all described in the slot pattern in one subframe, but are not limited thereto.
  • the slot pattern can also appear aperiodically.
  • FIG. 14 is a schematic diagram 12 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • the time domain pattern shown in FIG. 14 is the start of the p-th OFDM symbol of each slot in a subframe, and the number of consecutive OFDM symbols.
  • Schematic diagram of S Where p can be chosen from [0,7-S], the length of S depends on the length of p and a time slot. It is illustrated in Fig. 14 that the number of consecutive OFDM symbols S is one from the first OFDM symbol of one slot. That is, the time domain pattern position in one subframe: OFDM symbol #0, OFDM symbol #7.
  • the OFDM symbol #0, the OFDM symbol #7 pattern may appear in the period T, or the pattern appears in a non-periodic manner.
  • the period T can be one subframe or multiple subframes.
  • the period T can also be related to the length of the transmission burst. That is to say, Muting OFDM symbol #0, OFDM symbol #7 pattern may appear in each subframe, or Muting OFDM symbol #0, OFDM symbol #7 pattern may appear once in multiple subframes.
  • the starting position of the pattern of Muting in each slot may be from the first OFDM symbol, or may start from any one of the OFDM symbol positions between [0, 6], or the last OFDM symbol.
  • FIG. 15 is a schematic diagram 13 of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • the time domain pattern shown in FIG. 15 is the 0th OFDM symbol of each slot in a subframe, and consecutive OFDM symbols are used.
  • FIG. 16 is a schematic diagram of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • the time domain pattern shown in FIG. 16 is the start of the p-th OFDM symbol of each slot in a subframe, and the continuous OFDM symbol.
  • the number of consecutive OFDM symbols S is 1 from the 0th OFDM symbol in each slot in one subframe in the time domain, and the interval f between two Muting time domains in one slot is 5.
  • the slot pattern in this one subframe may be the period T occurring once or the non-period occurs. In particular, the above pattern appears in each sub-frame.
  • CCA detection is performed on OFDM symbols #0, #6, #7, #13 in each subframe.
  • there are 6 or 7 OFDM symbols in one slot the number of consecutive OFDM symbols included in one OFDM symbol block, and several OFDM symbol blocks in one slot can determine the interval between each OFDM symbol block. It is also predefined to obtain, or, base station indication, or DCI notification.
  • the time domain pattern in one subframe may be a number of subframes with a certain interval or a number of OFDM symbols, and the time slot Muting pattern in the foregoing subframe occurs once.
  • the present invention mainly focuses on a frequency domain pattern composed of Muting specific PRBs in the frequency domain, and time domain of Muting specific discrete k OFDM symbols (blocks) or consecutive k OFDM symbols (blocks) in the time domain.
  • the pattern or consecutive k OFDM symbols or time segments, the different time-frequency domain Muting positions constitute different CCA detection time-frequency domain patterns.
  • the time domain pattern is related to the length of the transmission burst or the number of subframes.
  • the pattern in the frequency domain has the PRB as the Muting granularity.
  • the time domain pattern can be referred to the description in Embodiments 2 and 3.
  • FIG. 17 is a schematic diagram of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 17 is a schematic diagram showing consecutive P PR resources in the frequency domain.
  • the PRB location of the Muting in the frequency domain may be consecutive P PRB resources, or resources other than P PRB resources. Assuming that the entire bandwidth is 5 MHz, which is equivalent to 25 PRBs, the device or device can perform CCA detection on 10 consecutive PRB Muting resources.
  • the consecutive P PRB resources may perform CCA detection on consecutive P PRBs starting from the minimum frequency domain resource index number of the B MHz bandwidth, or consecutive Ps starting from a specific PRB index number in the B MHz bandwidth.
  • the CCA detection is performed on the PRBs, or the CPA detection is performed on the consecutive P PRBs in the direction of the small frequency domain resource index number starting from the maximum frequency domain resource index number on the B MHz bandwidth.
  • the B MHz bandwidth can be divided into two segments, and the consecutive P PRB resources in the upper half of the Muting or the consecutive P PRB resources in the lower half perform CCA detection on the corresponding resources.
  • the CCA detection may be performed according to the continuous resource pattern described above.
  • FIG. 18 is a schematic diagram of a channel clean evaluation detection pattern according to an alternative embodiment of the present invention.
  • FIG. 18 is a schematic diagram showing discrete P PR resources in the frequency domain. That is, the device or device group is divided into P PRBs in the frequency domain over the entire bandwidth. This figure is a case where P discrete PRBs are equally spaced.
  • the discrete P PRBs may also be unequal intervals, and the number of Ps may be based on the system bandwidth and the interval between each PRB and the number of consecutive PRBs included in each PRB (block) or the starting point.
  • the PRB or PRB block index number is determined, or predefined, or base station notification, or DCI notification.
  • the system bandwidth is 5 MHz, which is equivalent to 25 PRBs, and the interval between each PRB is 1, the number of Ps is 12. That is, if the device or device group follows the starting position of the frequency domain, the system bandwidth and interval value, and the number of consecutive PRBs included in each PRB (block), the pattern position of the CCA in the frequency domain can be known.
  • the device follows the PRB#2, PRB#4, PRB#6, The CCA detection is performed on the frequency domain pattern positions of PRB #8, PRB #10, PRB #12, PRB #14, PRB #16, PRB #18, PRB #20, PRB #22, PRB #24.
  • the pattern of the PRB level may be a Muting PRB pattern of the same PRB group size configured at equal intervals, or a Muting PRB pattern of different PRB group sizes equally spaced, or the same PRB group size of unequal intervals. Muting PRB patterns, or Muting PRB patterns of different PRB group sizes that are not equally spaced.
  • the present optional embodiment mainly focuses on a frequency domain pattern composed of Muting specific RBGs or subbands in the frequency domain, Muting a specific discrete k OFDM symbols (blocks) or consecutive k OFDM symbols (blocks) in the time domain.
  • the time domain pattern is composed of different time-frequency domain Muting positions to form different CCA detection time-frequency domain patterns.
  • the difference between this embodiment and the second to fourth embodiments is that the pattern of Muting in the frequency domain is in units of RBG or sub-band.
  • the RBG is a unit of CCA detection pattern.
  • the size of an RBG is related to the system bandwidth.
  • the parameters of the CCA detection pattern constituting the RBG at this time are at least one of the following: the starting index number of the RBG in the frequency domain, the number of RBGs included in one RBG block, and the number of RBGs between each RBG or RBG block, The total number of RBGs in the entire bandwidth.
  • the system bandwidth is 10 MHz, which is equivalent to 50 RBs, which is equivalent to 25 RBGs.
  • Each RBG contains 2 RBs
  • each RBG group contains 2 consecutive RBGs, and the number of RBGs between each RBG group.
  • the starting RBG position index is 0.
  • the frequency domain Muting CCA patterns formed are RBG#0 to RBG#1, RBG#4 to RBG#5, RBG#8 to RBG#9, RBG#12 to RBG#13, RBG#16 to RBG#17, RBG. #20 ⁇ RBG#21, RBG#24.
  • the system bandwidth is 5MHz, 15MHz, 20MHz RBG level Muting CCA frequency domain pattern is also the same, not repeated here.
  • the interval between each RBG group may also be unequal intervals, and the number of RBGs included in each RBG group may be the same or different.
  • the sub-band is a unit of CCA detection pattern.
  • the parameters of the CCA detection pattern constituting the sub-band are composed of at least one of the following: a starting index number of the sub-band in the frequency domain, a number of REs or RBs or RBGs included in one sub-band, and a sub-band between each sub-band or The number of REs or RBs or RBGs, the total number of subbands or REs or RBs or RBGs in the entire bandwidth.
  • the subband is in units of 5 MHz
  • the 20 MHz system bandwidth can be divided into four 5 MHz subbands, and the transmission device can perform Muting by performing Muting on the continuous k subbands or out of the continuous k subbands.
  • the subband pattern of Muting is subband #0, the subband spacing is 1, and the total number of subbands is 4.
  • the frequency domain Muting subband pattern is subband #0, subband #2.
  • the number of consecutive subbands is 2, and the initial subband index in the frequency domain is 0, and the frequency domain Muting subband pattern is subband #0 to subband 1, or subband #2 to subband #3.
  • This alternative embodiment mainly focuses on different CCA detection time-frequency domain patterns formed by decreasing or decreasing the frequency domain index number in the CCA Muting pattern.
  • FIG. 19 is a schematic diagram of a channel clean evaluation detection pattern, shown in FIG. 19, in accordance with an alternative embodiment of the present invention.
  • the pattern corresponds to the above special pattern, as shown in FIG. 19, assuming that there are two discrete RE blocks in one RB, and the starting position of the first RE block is RE#3, and the frequency domain of the second RE block starts.
  • the location is RE#10, and each RE block contains two consecutive REs.
  • For the time domain there are two consecutive OFDM symbols on each slot, and the start of the time domain symbol is symbol #1.
  • a Muting RE is located at RE#3, the first OFDM symbol #1 is located in the time domain, and the second Muting RE is located at RE#4, and the symbol #2 is located in the time domain.
  • a Muting RE is located in RE#3, the time domain is located at symbol #1, the second Muting RE can also be located at RE#2, and the time domain is located at symbol #2.
  • the first Muting RE can also be located in RE#4, the time domain is located at symbol #1, the second Muting RE can also be located at RE#3, and the time domain is located at symbol #2.
  • the pattern in the time domain in units of subframes may also be a pattern in units of time slots. That is, the time domain pattern is discrete, the frequency domain pattern is also discrete, and each discrete pattern in the frequency domain can be in a frequency domain increment or decrement state.
  • the time domain pattern may be continuous, and the discrete pattern of the frequency domain pattern may be in a frequency domain increment or decrement state, or the time domain pattern may be discrete, and the continuous pattern of the frequency domain pattern may be in a frequency domain increment or decrement state, or a time domain pattern.
  • Continuous, continuous pattern of frequency domain patterns can be in the frequency domain increment or decrement state.
  • the frequency domain pattern is also decremented or decremented as the frequency domain frequency domain index of the OFDM symbol index number in the time domain is decremented.
  • the Muting pattern in the frequency domain may be a continuous increasing or decreasing pattern or a plurality of discrete increasing or decreasing RE or PRB or RBG or sub-band patterns.
  • the other pattern is that the OFDM symbol index number in the time domain is offset by an offset1, and the RE index number or the PRB index number or the RBG index number or the subband index number in one RB in the frequency domain is offset by an offset2 value, where offset1 and The offset2 values can be the same, or different.
  • the values of offset1 and offset2 are the same.
  • the Muting RE position in the frequency domain is offset by an RE value.
  • the time domain pattern is continuous and can sustain multiple OFDM symbols.
  • the pattern in the time domain can be discrete.
  • the pattern in the frequency domain can also be discrete, or the pattern in the time domain is discrete and the pattern in the frequency domain is continuous, or the time domain is continuous and the pattern in the frequency domain is discrete.
  • the discrete patterns may be equally spaced, or unequal intervals, or each discrete pattern may contain a plurality of consecutive OFDM symbols or REs or RBGs.
  • the number of symbols or the number of REs or RBGs included in each discrete pattern is different, or may be the same.
  • the optional embodiment mainly describes a specific CCA pattern according to which specific parameters of the device (such as a base station or a terminal) or a device group, and how to obtain a CCA Muting pattern used by the base station side and the UE side to perform CCA detection.
  • the base station or the UE performs CCA detection on the frequency domain resource corresponding to the Muting pattern of the entire carrier, if the location is detected in the corresponding Muting pattern. If the energy is less than a certain threshold A, the channel is considered to be idle, for example, the threshold A is -62 dBm, or the absolute value of the number between [0 and m] is added to -62 dBm (or plus or minus [0] An integer between ⁇ m], where: m is an integer, for example: m is -10, and threshold A is -72 dBm. Alternatively, m may be a number within 5, 10, 15, 20, 30.
  • the base station or the UE performs CCA detection according to the frequency domain resource corresponding to its Muting pattern, if the detected energy in the corresponding Muting pattern position is less than the specific threshold A, if the energy is detected in the corresponding Muting pattern position Below a certain threshold A, the channel is considered to be idle or the pattern reserved by the base station or UE of the operator (or the base station or UE in the same carrier is using the channel) or no different system exists on the carrier.
  • the base station or the UE considers that the energy can be reused, that is, It is considered that the base station or the UE of the same carrier is using the channel, and the conditions for multiplexing with the base station or the UE in the operator are satisfied (for example, the multiplexed devices do not cause great interference or influence between each other), thereby detecting
  • the channel can be multiplexed to a base station or UE that can be multiplexed.
  • both the threshold A and the threshold B have integers. For example, if the threshold A is -62 dBm and the threshold B is -52 dBm, if the base station or the UE detects an energy of -58 dBm on the resources of the Muting pattern complement, the base station or the UE considers that it can be in the same carrier as the occupied channel. The base station or UE multiplexes the channel.
  • the threshold A and the threshold B can be respectively obtained by adding -62 dBm plus an absolute value [0 to m] (or adding an integer between positive or negative [0 to m]), wherein :m is an integer, for example: m is -10, and threshold A can be -72dBm.
  • m may be a number within 5, 10, 15, 20, 30.
  • the same CCA detection pattern is used for the base station or UE in the same carrier, and the CCA detection pattern between different operators is different. If the base station or the UE in the carrier detects that the channel is idle on the corresponding Muting pattern or detects that the channel is idle on the corresponding CCA detection pattern, the CCA pattern corresponding to the different operator or the CCA of the Muting is required after the occupation. Sending occupation information or data on the pattern, or sending information on the entire bandwidth or on resources other than the self-pattern, preventing the device of the different operator from detecting that the channel is idle on the corresponding Muting resource, and thinking that it can use the data. The channel causes a collision. Patterns between different operators can be implemented by implementing a predetermined or background configuration.
  • the time domain Muting pattern of the CCA detection may be known by one of the following parameters: a time domain start position, a subframe number or a transmission burst length, an interval between each time period, a number of time segments, and each time period.
  • the slot index is 0, indicating the first half slot of the subframe, and 1 is the second half slot of the subframe.
  • the frequency domain Muting pattern detected by the CCA can be known by one of the following parameters: the frequency domain starting PRB index number, the RE index number in each PRB index, the continuous RE length, the bandwidth or the number of available PRBs or REs, each The interval between RE blocks or PRB blocks, the number of RE blocks or PRB blocks, the number of consecutive or discrete REs or PRBs contained in each RE block or PRB block, the offset between REs in one PRB, and the offset in one PRB RE index number or relative position or relative offset and the number of discrete RE or RE blocks in a PRB.
  • the time-frequency domain pattern can be learned by at least one of the parameters of the time domain and the frequency domain.
  • Example 1 The system bandwidth is 5MHz (equivalent to 25 PRBs, or equivalent to 300 subcarriers), and the RE start index number in each PRB is 3 (label: index number 1 is the smallest index number of RE), RE
  • the continuous length is 1, and the three parameters can be used to know that the CCA frequency domain pattern is a pattern composed of all REs with index number 3 in 25 PRBs.
  • the pattern composed of the time domain and the frequency domain is: all of the 25 PRBs on the entire bandwidth have index number 3 A narrow band of RE and the entire time domain.
  • the time domain and the frequency domain pattern detected by the CCA are: starting from the index number of the 25 PRBs on the entire bandwidth, consecutively 3 REs, ie [RE#3, RE#5] All REs and narrow bands of the entire time domain.
  • the RE starting index number in each PRB is 3
  • the continuous length of the RE is 2
  • each RE block is 3
  • the frequency pattern RE in each PRB in the entire bandwidth is [RE#3, RE#4], [RE#9, RE#10].
  • the time domain pattern can be the entire time domain. However, if the number of discrete REs or RE blocks and the starting RE index number in each PRB and the number of consecutive REs in the RE block are known, the RE pattern information in the PRB can be known.
  • the system bandwidth is 5 MHz (equivalent to 25 PRBs, or equivalent to 300 subcarriers)
  • the RE pattern starting index number in one PRB is 3
  • the continuous RE length is 2
  • the interval between RE blocks is 5 RE, from the symbol index number #0 and the symbol index number #1 on each time slot in one subframe in the time domain (note: the minimum value of the symbol index number is 0)
  • the frequency index is indexed by a single RE in the RE block.
  • the direction is decremented or incremented, and the direction index of the time domain index is incremented. Therefore, a time-frequency domain detection pattern can be obtained as shown in FIG. 19, wherein the time-frequency domain determines the unique pattern according to the direction in which the index number is incremented for detection.
  • the RE resources corresponding to the single RE index number in the RE block may be detected or muted, or the RE block may be used as a whole and the time domain pattern to determine specific time points or time segments. Corresponding frequency domain pattern.
  • the method for obtaining the CCA pattern for the RE level can be used for obtaining the PRB level CCA pattern, except that the number of PRBs is continuous and there is no RE index number.
  • the RE index number may be a relative index number in each PRB, or may be an index number of an RE over the entire bandwidth.
  • the system bandwidth is 5MHz (equivalent to 300 subcarriers), the minimum index number of the RE, the starting index number of the RE, the continuous RE length, the interval between RE or RE blocks, or the offset between RE or RE blocks. The amount offset, you can get a specific pattern.
  • the frequency domain pattern is [RE#3, RE#4 ], [RE#9, RE#10], [RE#15, RE#16], [RE#21, RE#22], that is, RE patterns that are equally spaced from the entire 5 MHz bandwidth.
  • the spacing between RE blocks can also be different.
  • the interval between the RE blocks is the number of REs from the end RE index number of one RE block to the start RE index number of the next RE block, or The number of REs between the start RE index number of one RE block and the start RE index number of the next RE block.
  • the offset offset between RE or RE blocks is the same. This example uses the former definition.
  • the time domain pattern can be described above.
  • the same CCA detection pattern is used between the base stations in the carrier, and one base station can select or determine the pattern to be used for CCA detection from the CCA pattern set (can be a CCA detection pattern, or multiple different The CCA detection) is notified to other base stations through the X2 port for CCA detection, or the same operator reuse identification pattern for detecting whether the channel can be multiplexed. Or, by using a predefined definition, the CCA detection pattern used by the base station or the UE in the same carrier, or the Muting pattern of the CCA, or the parameters used to obtain the CCA pattern through the OAM background configuration, thereby obtaining the pattern used in the specific CCA detection. .
  • the base station can exchange the respective CCA patterns or Muting patterns, or directly interact with each other, or select a primary base station to notify neighboring base stations through the X2 port.
  • the CCA detection is the pattern parameter information used.
  • each base station selects its own CCA detection pattern in a CCA pattern set, and then exchanges its parameter information through the X2 port, where it can interact multiple times to ensure different base stations adopt different CCA inspection pattern or Muting pattern.
  • the CCA pattern can be obtained through the base station air interface notification, or through the DCI indication, or the CCA pattern parameter configuration is embedded by the SIM card, or the pattern used by the CCA detection is obtained in a predefined manner.
  • the Muting pattern may be a RE level pattern or a PRB level pattern.
  • the Muting pattern of the RE level is used for other multiplexed devices during the data transmission period or the device that continues to perform the CCA detection performs channel busy detection.
  • the use of the PRB-level Muting pattern will cause a waste of resources to a certain extent, thereby reducing system performance.
  • the base station to be multiplexed may perform only one initial CCA detection (or the first CCA detection in the LBT Cat4 mechanism), or continue to perform the LBT process according to the previously frozen N, at this time, Preferably, one or two OFDM symbols are configured on the domain for channel idle detection. If the initial CCA detection channel is idle, or the frozen N is decremented to 0, the channel is considered to be usable. If the channel idle is detected on the corresponding Muting pattern, optionally, whether the detected energy on the resource other than the Muting pattern or the entire bandwidth satisfies the CCA detection threshold requirement, and if satisfied, the multiplexed base station may stop the LBT.
  • the Cat4 process immediately performs an LBT Cat2 process to achieve multiplexing in order to access the channel as quickly as possible.
  • the uplink if the UE side needs to send the SRS reference signal, and the time domain location of the transmitted SRS reference signal is located on the last OFDM symbol of one subframe, at this time, if the entire frequency domain on the last symbol in the Muting subframe Resources will, to a certain extent, result in the inability of SRS signals to be sent.
  • the Muting pattern can be used for the multiplexed device to perform CCA detection without conflicting with the transmission of the SRS reference signal.
  • resources other than the Muting SRS frequency domain pattern are used as patterns for CCA detection. The above described method can also be used in the other two stages.
  • the reserved signal phase, the Muting pattern used in the data transmission phase may be the same, and different muting patterns may be used for different phases, and the patterns described in the present invention may be used for the above three stage.
  • the same Muting pattern is adopted for the transmission equipment in the same carrier to perform the channel competition access, and the transmission equipment in different operators adopts the same Muting frequency domain.
  • different transmission devices in the same carrier may also be configured with different Muting frequency domain patterns to avoid interference between devices.
  • the same Muting frequency domain pattern is used as the transmission equipment under the operator, and is not transmitted on the corresponding Muting time-frequency domain resource, or zero power transmission is performed.
  • the transmission device may first perform CCA detection on the Muting pattern to determine whether the energy on the Muting resource satisfies a preset threshold. If a specific threshold is met, the channel may be considered as being on the channel. There is no different system (for example, when the different system is Wi-Fi, if Wi-Fi exists, it is transmitted with full bandwidth. If energy is detected on the resources of LAA Muting, it is energy with leakage (leakage energy) It should be small, negligible), or energy from Wi-Fi.), or the pattern of the system, or, think that the channel is idle.
  • CCA detection on the Muting pattern to determine whether the energy on the Muting resource satisfies a preset threshold. If a specific threshold is met, the channel may be considered as being on the channel. There is no different system (for example, when the different system is Wi-Fi, if Wi-Fi exists, it is transmitted with full bandwidth. If energy is detected on the resources of LAA Muting, it is energy with leakage (leakage energy) It should be
  • the transmitting device detects whether the energy on the resource outside the Muting pattern meets a preset threshold or an adjusted threshold, and if the energy is greater than the preset threshold and less than the adjusted threshold, Or, if the energy is less than the preset threshold, the channel is considered to be available, or may be multiplexed with the transmission device under the carrier.
  • the time domain duration of the channel's contention access process is preferably longer, which is beneficial to the transmission equipment to complete the LBT process.
  • the frequency domain may adopt PRB, RBG or subband, preferably, adopting the RE level. Muting pattern.
  • the Muting pattern in the frequency domain is mainly used for pattern recognition or interference source identification of the transmission device to be multiplexed, thereby determining whether it is possible to transmission.
  • the transmission device does not complete the LBT process, and in the data transmission phase, the pattern recognition may be optionally performed according to the access opportunity of the configured time domain pattern or Interference identification to confirm whether the channel is available, thereby improving the efficiency of multiplexing.
  • the data transmission period from the perspective of combining resource waste and system efficiency and channel access opportunity, the time domain pattern of the data transmission period (eg, when transmitting PDSCH, or PUSCH, or DRS), according to the transmission burst length and continuous
  • the used subframe condition is either a periodic configuration or a non-periodic configuration, and multiple time segments are discrete.
  • the time segment occupies 1 or 2 OFDM symbols, and the position of the time segment may be the front of the subframe. , middle or last.
  • the frequency domain recommendation on the data transmission period (eg, when transmitting PDSCH, or PUSCH, or DRS) is the RE Muting granularity.
  • Muting's RE can be configured to occupy 4%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60% of an RB. , 65%, 70%, 75%, 80%, 85%, 90%, 95%, 100% or, Muting's RE occupies n/12 in an RB, and n is the number of [1, 12].
  • the Muting RE can be configured to occupy the above-mentioned percentage of the entire bandwidth, or d/w, where d is the number of REs of the Muting, and w is the number of REs corresponding to the bandwidth.
  • the Muting RB or RBG may be configured to occupy the above-mentioned percentage of the entire bandwidth, the formula is unchanged, and only the number of RBs or RBGs of Muting is changed.
  • w is the number of RBs or RBGs corresponding to the bandwidth.
  • Muting's subbands can also be configured to take up the above percentage of the entire bandwidth.
  • the resources of Muting in the time domain are also the same.
  • the transmission device may be a base station or a user equipment UE.
  • This embodiment mainly focuses on multiplexing of DRS signals transmitted by the base station side.
  • the base station under the same carrier can be configured with the same Muting pattern for performing CCA detection, or a mutually orthogonal Muting pattern can be configured between different base stations.
  • the DMTC window size of the base station transmitting the DRS signal is 40 ms or 50 ms, and the base station has the opportunity to transmit the DRS X times in the corresponding DMTC window.
  • the preferred configuration of X is 5 or 6.
  • the X-time transmission opportunity utilization is a continuous Xms time period, or a discrete X-time opportunity, and each DRS transmission takes 1 ms time. For example, for a continuous 5 ms (equivalent to 5 subframes) time, each transmission of the DRS signal occupies only the first 12 OFDM symbols in one subframe, and the last two subframes are used to transmit the LBT process of the DRS.
  • the last two OFDM symbols may also send a reserved signal, or occupy a signal, and the reserved signal or the time when the occupied signal is transmitted for a maximum duration of 2 OFDM symbols. That is, the base station can perform the LBT process on the last 2 OFDM of the 5 subframes. If the LBT process is successful in the last 2 OFDM symbol times of the previous subframe of the first subframe, the base station can The DRS signal is transmitted on the first subframe. On the other hand, if the LBT process fails, the DRS signal cannot be transmitted on the first subframe, and the base station continues to perform the LBT process on the last 2 OFDM symbols in the first subframe. If successful, the second subframe is succeeded. Send a DRS.
  • the base station fails to perform LBT on 5 consecutive subframes, the DRS signal cannot be transmitted in this DMTC.
  • the DRS LBT corresponding to the 5 subframes succeeds once, the DRS can be sent on the corresponding subframe. signal.
  • the base station can perform the LBT process on the last two OFDM symbols on the X discrete subframes in the DMTC time. If the LBT is successfully executed any time, the DRS signal can be transmitted, occupying the first 12 OFDM symbols in one subframe.
  • the multiplexing process when transmitting DRS signals between base stations is mainly described. Assuming that there are two base stations A and B, the base station A performs an LBT process of transmitting a DRS at a corresponding position where the LBT is performed, wherein: the position at which the LBT process is performed is an LBT process performed on the last two OFDM symbols in the subframe. The base station B also performs an LBT process of transmitting the DRS corresponding to the corresponding LBT position within the possible transmission of the DRS signal or the window.
  • the Muting pattern used by the base stations A and B in performing the contention access access LBT process of the channel and determining whether the channel is available is the same as the rule in the foregoing embodiment.
  • the Muting patterns configured by the base stations A and B may be the same, or may be mutually orthogonal patterns in the frequency domain.
  • the same Muting pattern configured by base stations A and B is taken as an example:
  • the base station A detects the channel idle on the corresponding Muting pattern when the channel A is competing for access, the base station A considers that the right to use the channel is acquired, so that the DRS can be transmitted. If the time when the base station A successfully completes the LBT procedure does not reach the subframe boundary of the DRS, the base station A needs to transmit a reserved signal or an initial signal.
  • the reserved signal or the initial signal sent by the base station A is a reserved signal with a certain Muting resource, and is not sent by the full bandwidth.
  • Muting resources (RB level or RE level or RBG level or sub-band level) are used by the base station to be multiplexed to perform CCA detection on the resource.
  • the resource of Muting is preferably a pattern of Muting RE, which is a Muting pattern on a resource other than the frequency domain resource used for transmitting the CRS on the symbol for transmitting the CRS (Muting's pattern cannot be Muting off the resource for transmitting the CRS)
  • the Muting pattern needs to mutate the base station for CCA detection and determine whether the channel is available on the resources transmitting the PSS and SSS on the resources other than the PSS and SSS resources.
  • Muting specific patterns are also required on the spare symbols during the transmission of the DRS.
  • the pattern referred to in the present invention for the frequency domain pattern during the PDSCH is also suitable for transmitting DRS.
  • the difference is that the pattern with Muting needs to avoid the location of sending CRS, PSS/SSS.
  • the base station B and the base station A are configured with the same pattern (or the Muting pattern configured by the base station A is the DRS LBT detection pattern of the base station B). Therefore, the base station B performs detection on the Muting pattern to obtain whether the channel is idle, thereby determining whether it can be recovered. Base station A contends to the channel for DRS transmission.
  • the base station B may only detect whether the resource on the corresponding Muting pattern is idle, or may comprehensively determine whether the channel can be multiplexed by using resources other than the Muting pattern and resources other than the Muting pattern. For the former, if the base station B detects that the energy is less than the preset threshold value on the corresponding Muting pattern, and considers that the channel is available, it can transmit its own DRS. For the latter, if the energy detected by the base station B on the corresponding Muting resource is less than the preset threshold, it is considered that the system is different, or is the reserved pattern of the device in the same system under the operator, or , think the channel is idle.
  • the CCA detection threshold may be adjusted to improve the probability that the transmission device of the same system in the same carrier accesses the channel.
  • the base station B detects whether the energy on the resource outside the Muting resource meets the preset CCA threshold or the adjusted CCA threshold. If the energy is less than the preset CCA threshold, the entire channel is considered to be idle. Alternatively, if the energy is greater than the preset CCA threshold and less than the adjusted CCA threshold, it is considered that the same system transmission device occupies the channel or considers that the channel is available, and multiplexing can be implemented.
  • the base station B capable of identifying the interference source can transmit its own DRS signal.
  • the duration of the CCA detection is at least the defer period+N*slot time, the defer period duration can be configured as 16 us+n slots, the slot duration is 9 us, and n is greater than or equal to A value of 1, N is a fixed value or a random value greater than or equal to zero. If the time when the detection channel is continuously idle is the duration of the CCA detection, the channel is considered to be idle, and the DRS can be transmitted.
  • the defer period+N*slot time does not exceed the time of two OFDM symbols, and the start time of the LBT process in which the base station transmits the DRS is the second to last OFDM symbol start position of the previous subframe, or the previous subframe A random time in the range of two OFDM symbols after the countdown, but it is necessary to ensure that the defer period+N*slot time from the start time of the LBT does not exceed the end time of the two OFDM symbols after the reciprocal of the previous subframe.
  • the above processing method is also applicable to the case where multiple base stations are multiplexed.
  • Muting patterns are configured, wherein the Muting patterns of different base stations are orthogonal to each other.
  • Each base station performs CCA detection on the corresponding Muting pattern. If it is detected that the energy on the corresponding Muting pattern satisfies the preset threshold, the channel is considered to be available, so that the respective DRSs can also be transmitted.
  • Different patterns of different base stations or UE configurations are also applicable to PDSCH and PUSCH transmission.
  • the base station side that is, different base stations are configured with different patterns, and the patterns are orthogonal to each other, and each base station performs CCA detection on the respective patterns, and if the detection channel is idle, the channel is considered to be available.
  • the reserved signal or the initial signal needs to be sent, and the corresponding reserved signal or the initial signal may be a full bandwidth transmission, or a resource reserved for the own pattern, or only in its own pattern.
  • the location sends a reserved signal or an initial signal.
  • the data transmission and transmission PDSCH may also be full bandwidth transmission, or reserve a resource of its own pattern, or send data only on the resources of its own pattern.
  • Each device can also nest the pattern of the present invention on its own configured pattern. That is, the present invention also supports nesting of patterns.
  • the various time and/or frequency domain patterns described in the above embodiments or in the present invention may be arbitrarily combined.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.

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Abstract

本发明提供了一种信道干净评估检测方法和装置。其中，该方法包括：获取信道干净评估CCA检测图样或者静默Muting图样；在CCA检测图样对应的资源上或者在Muting图样对应的资源上对非授权载波信道进行CCA检测。通过本发明，解决了相关技术中在CCA检测时不能识别干扰源问题，从而导致复用效率低和带来的非授权载波接入概率低的问题，提高了相关技术中资源复用效率和提高信道接入概率。

Description

信道干净评估检测方法和装置 技术领域
本发明涉及通信领域，具体而言，涉及一种信道干净评估检测方法和装置。
背景技术
随着数据业务的快速增长，授权频谱的载波上承受的数据传输压力也越来越大，因此，通过非授权频谱的载波来分担授权载波中的数据流量成为后续长期演进(Long Term Evolution，LTE)发展的一个重要的演进方向。
非授权频谱具有的特征是：非授权频谱不需要购买，频谱资源零成本，具有免费或者低费用的特征；个人、企业都可以参与部署，设备商的设备可以任意部署，具有准入要求低，成本低的特征；非授权频谱中的5GHz、2.4GHz等频段都可以使用，具有可用带宽大的特征；非授权载波具有共享资源的特征，即多个不同系统都在其中运营时或者同一系统的不同运营商在其中运营时，可以考虑一些共享资源的方式提高频谱利用效率，等等。
基于非授权频谱的上述特征，LTE系统的Rel-13版本于2014年9月份开始立项研究，其中一项重要的研究议题就是LTE系统使用非授权频谱的载波工作。这项技术将使得LTE系统能够使用目前存在的非授权频谱的载波，大大提升LTE系统的潜在频谱资源，使得LTE系统能够获得更低的频谱成本。
基于上述LTE使用非授权载波资源带来的各种益处，授权辅助接入(Licensed-Assisted Access，简称为LAA)系统使用非授权载波时需要考虑与其他技术(如，无线保真(WIreless-Fidelity，简称为Wi-Fi))的公平共存。此外，对于非授权频谱的接入，一些地区的管制要求执行先听后说(Listen Before Talk，简称为LBT)机制，因此，LAA设备，如演进型基站(evolved Node B，简称为eNB)和/或用户设备(User Equipment，简称为UE)需要遵守LBT要求，从而达到与Wi-Fi系统的友好共存。
在Rel-13RAN1#Ad-hoc会议中关于频率重用达成共识，即同运营商下的相邻LAA小区的传输能够实现频率重用将是LAA设计的一个目标，需要考虑LBT的设计。而对于终端侧，同小区下的终端或同运营商下的终端也需要考虑复用问题，同样，也需要考虑相应的LBT检测时频域图样的设计，从而实现或是提高复用效率。
而在Rel-13RAN1#80bis次会议中，对于基站侧，LBE(Load-based equipment,基于负载的装置)方式下LBT机制被用于信道的竞争接入时，可提高下行传输复用效率的候选方法包括：信道干净评估(Clear Channel Assessment，简称为CCA)门限自适应(CCA threshold adaptation)；传输开始时刻对齐(Tx start timing alignment)；信号消减(Signal subtraction from ED or modified ED)；混合选项或其他选项(Combination of those options or other alternatives are not precluded)。基于第82次会议之前的各次会议的讨论上述几种方法的优缺点，最终达成的 共识：通过CCA门限自适应和传输开始时刻对齐的方式来提高基站侧的频率复用。基于此，对于CCA门限自适应方法，LAA设备需要识别在非授权载波上感知到的信号是来自于其他LAA设备或其他系统设备，从而调整(调大或者调小)CCA检测门限来实现同运营商下的设备复用。而对于传输开始时刻对齐方法，为了实现同运营商中的不同LAA设备能够对齐传输时刻点，引入了自延迟，和/或，LBT过程协调(协调参数包括至少之一：随机回退值N、扩展干净信道评估(Extended Clear Channel Assessment，简称为ECCA)开始时刻位置、开始传输时刻)，但其会导致信道接入概率降低从而不能实现很好的复用。
针对相关技术中在CCA检测时不能识别干扰源问题，从而导致复用效率低和带来的非授权载波接入概率低的问题，目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种信道干净评估检测方法和装置，以至少解决相关技术中CCA检测所带来的非授权载波接入概率低的问题。
根据本发明的一个实施例，提供了一种信道干净评估检测方法，包括：获取信道干净评估CCA检测图样或者静默Muting图样；在所述CCA检测图样对应的资源上或者在所述Muting图样对应的资源上对非授权载波信道进行CCA检测。
可选地，获取所述CCA检测图样或者所述Muting图样包括：根据参数获取所述CCA检测图样或者所述Muting图样，其中，所述参数包括以下至少之一：时域起始位置，频域起始位置，时域连续资源的长度，频域连续资源的长度，时域资源之间的间隔，频域资源之间的间隔，时域上子帧数或传输突发burst长度，频域带宽。
可选地，所述时域起始位置包括以下至少之一：时域起始子帧索引号，所述时域起始子帧索引号对应的子帧中的正交频分复用OFDM符号索引号，所述时域起始子帧索引号对应的时隙索引号，所述时域起始子帧索引号对应的所述时隙索引号中的OFDM符号索引号。
可选地，所述时隙索引号为第一预定值，则表示子帧中的前半时隙；所述时隙索引号为第二预定值，则表示子帧中的后半时隙；其中，所述前半时隙和所述后半时隙均包括6或7个OFDM符号，每个时隙中最小的OFDM符号索引号为0，最大的OFDM符号索引号为5或6。
可选地，所述第一预定值为0，所述第二预定值为1。
可选地，所述频域起始位置包括以下至少之一：频域起始物理资源块PRB的索引号，频域上每个PRB中的起始资源粒子RE的索引号，频域上RE起始位置相对于整个带宽上RE的索引号，频域起始资源块组RBG的索引号，频域起始资源粒子组REG的索引号，频域起始子带索引。
可选地，所述时域连续资源的长度包括以下至少之一：时域上连续的OFDM符号的数目，时域上连续的子帧数目。
可选地，所述频域连续资源的长度包括以下至少之一：频域上连续的PRB的数目，频域上连续的RE的数目，频域上连续的RBG的数目，频域上连续的REG的数目，频域上连续的子带的数目。
可选地，所述时域资源之间的间隔包括以下至少之一：时域的上一个资源与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一个资源与下一个资源块之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源块之间的OFDM符号数或子帧数或帧数。
可选地，两个时域资源和/或资源块之间的符号数是指从上一个资源和/或资源块的结束符号位置开始，到下一个资源和/或资源块的开始符号之间的符号数目。
可选地，每个时域资源和/或资源块之间的间隔相同或不同。
可选地，每个时域资源块中包括的OFDM符号数目相同或者不同。
可选地，频域资源之间的间隔包括以下至少之一：频域上一个PRB与下一个PRB之间包含的PRB数目；频域上一个PRB块与下一个PRB块之间包含的PRB数目；频域上一个PRB与下一个PRB块之间包含的PRB数目；频域上一个PRB块与下一个PRB之间包含的PRB数目；频域上一个RE与下一个RE之间包含的RE数目；频域上一个RE块与下一个RE块之间包含的RE数目；频域上一个RE与下一个RE块之间包含的RE数目；频域上一个RE块与下一个RE之间包含的RE数目；频域上一个RBG与下一个RBG之间包含的RBG数目或RB数目；频域上一个RBG与下一个RBG块之间包含的RBG数目或RB数目；频域上一个RBG块与下一个RBG之间包含的RBG数目或RB数目；频域上一个RBG块与下一个RBG块之间包含的RBG数目或RB数目；频域上一个子带与下一个子带之间包含的RB数目或子带数目。
可选地，两个频域PRB和/或PRB块之间的PRB数目或间隔是指从上一个PRB和/或PRB块的结束PRB位置开始，到下一个PRB和/或PRB块的开始PRB之间的PRB数目；和/或，两个频域RE和/或RE块之间的RE数目或间隔是指从上一个RE和/或RE块的结束RE位置开始，到下一个RE资源块的开始RE之间的RE数目；和/或，两个频域RBG和/或RBG块之间的RBG数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开始RBG之间的RBG数目；和/或，两个频域RBG和/或RBG块之间的RB数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开始RBG之间的RB数目。
可选地，频域PRB和/或PRB块之间的PRB数目或间隔相同或不同；和/或，频域RE和/或RE块之间的RE数目或间隔相同或不同；和/或，频域RBG和/或RBG块之间的间隔相同或不同。
可选地，每个频域RE块中包含的RE数目相同或者不同；和/或，每个频域PRB块中包含的PRB数目相同或者不同；和/或，每个频域RBG块中包含的RBG/PRB数目相同或者不同； 和/或，每个子带的带宽相同或者不同。
可选地，时域上子帧数或传输突发burst长度包括以下至少之一：帧的数目，子帧数目，OFDM符号数目，连续占用的子帧数目，连续占用的OFDM符号数目，执行CCA成功时刻开始连续使用的子帧数目，执行CCA成功时刻开始连续使用的时长长度。
可选地，所述频域带宽包括以下之一：频域带宽的值，所述频域带宽对应的PRB总数目，所述频域带宽对应的RE总数目，所述频域带宽对应的RBG总数目，所述频域带宽对应的子带总数目。
可选地，所述频域带宽的值为以下之一：5MHz，10MHz，15MHz，20MHz。
可选地，由以下频域参数中的至少之一和以下时域参数中的至少之一构成所述CCA检测图样或者所述Muting图样，其中，构成频域图样的参数包括下述至少之一：频域整个带宽、频域上PRB起始索引号、频域上连续PRB的数目、频域上PRB和/或PRB块之间的间隔、频域上起始PRB中的起始RE索引号、频域上RE起始索引号、频域上连续RE的数目、频域上RE和/或RE块之间的间隔、频域上RBG起始索引号、频域上连续RBG的数目、频域上RBG和/或RBG块之间的间隔、频域上子带起始索引号、子带带宽、频域上子带的间隔；和/或，构成时域图样的参数包括下述至少之一：整个时域资源、时域上起始帧索引号、时域上起始帧中起始子帧索引号、时域上起始帧中起始子帧中的时隙索引号、时域上连续的OFDM符号长度、时域上连续的子帧长度、时域上连续的帧索引号、时域上OFDM符号和/或OFDM符号块之间的间隔。
可选地，根据所述构成频域图样的参数确定下述至少之一的图样：RE级的频域图样、PRB级的频域图样、RBG级的频域图样、子带级的频域图样；和/或，根据所述构成时域图样的参数确定下述至少之一的图样：整个时域；时域上一个连续的资源块的图样；时域上间隔相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔相等，且每个时域资源或资源块的大小不相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小不相同的时域图样。
可选地，所述RE级的频域图样包括以下至少之一：每个PRB上RE图样相同，且一个PRB中的一个RE构成的频域图样；每个PRB上的RE图样相同，且一个PRB中一个连续的多个RE构成的频域图样；每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小不相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中不等间隔，每个RE或RE块大小相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中不等间隔，每个RE或RE块大小不相等构成的频域图样；整个带宽上，间隔相等，每个RE或RE块大小相等构成的频域图样；整个带宽上，间隔相等，每个RE或RE块大小不相等构成的频域图样；整个带宽上，不等间隔，每个RE或RE块大小相等构成的频域图样；整个带宽上，不等间隔，每个RE或RE块大小不相等构成的频域图样。
可选地，所述PRB级的频域图样包括以下至少之一：整个频域上，间隔相等，每个PRB 或PRB块大小相等构成的频域图样；整个带宽上，间隔相等，每个PRB或PRB块大小不相等构成的频域图样；整个带宽上，不等间隔，每个PRB或PRB块大小相等构成的频域图样；整个带宽上，不等间隔，每个PRB或PRB块大小不相等构成的频域图样。
可选地，所述RBG级的频域图样包括以下至少之一：整个频域上，间隔相等，每个RBG或RBG块大小相等构成的频域图样；整个带宽上，间隔相等，每个RBG或RBG块大小不相等构成的频域图样；整个带宽上，不等间隔，每个RBG或RBG块大小相等构成的频域图样；整个带宽上，不等间隔，每个RBG或RBG块大小不相等构成的频域图样。
可选地，所述子带级的频域图样包括以下之一：整个频域上，间隔相等，子带带宽相等构成的频域图样；整个频域上，间隔相等，子带带宽不相等构成的频域图样；整个频域上，不等间隔，子带带宽相等构成的频域图样；整个频域上，不等间隔，子带带宽不相等构成的频域图样。
可选地，根据频域图样和时域图样的组合获得时频域的图样。
可选地，在所述时频域的图样中，随着时间的递增，频域资源图样不变；或者，随着时间的递增，频域资源图样呈依次递减或是递增；或者，时域上图样连续，频域连续图样呈依次递减或是递增；或者，时域上图样连续，频域上离散图样的呈依次递减或是递增；或者，时域上图样离散，频域连续图样呈依次递减或是递增；或者，时域上图样离散，频域上离散图样的呈依次递减或是递增；或者，时域上图样连续呈依次递增，频域上离散图样的呈依次递减或是递增。
可选地，在所述CCA检测图样对应的资源上或者在所述Muting图样对应的资源上对所述非授权载波信道进行所述CCA检测包括：不同运营商配置不同的所述CCA检测图样或所述Muting图样；和/或，同运营商下同系统中传输设备配置相同的所述CCA检测图样或所述Muting图样；和/或，同运营商下同系统中的不同传输设备配置不同的所述CCA检测图样或所述Muting图样。
可选地，传输设备在配置的所述CCA检测图样或Muting图样对应的资源上进行所述CCA检测包括：在对应的所述CCA检测图样或Muting图样对应的资源上检测到的能量小于第一门限值的情况下，确定以下至少之一：所述非授权载波信道为空闲状态，同运营商中的设备已占用所述非授权载波信道，所述非授权载波信道上无异系统存在；在对应的所述CCA检测图样或Muting图样对应的资源上检测到的能量大于所述第一门限值的情况下，确定以下至少之一：所述非授权载波信道上存在异系统，所述非授权载波信道不可用，所述非授权载波信道已被其他系统或异运营商中的设备占用。
可选地，当CCA检测图样或Muting图样上的能量小于第一门限值时，所述第一门限值能够被调整。
可选地，同运营商下同系统中传输设备在配置的所述CCA检测图样或Muting图样以外的资源上或整个带宽上进行所述CCA检测包括：在对应的所述CCA检测图样或Muting图样 的补集对应的资源上或者整个带宽上检测到的能量大于第一门限值，且小于第二门限值的情况下，确定传输设备能够与已占用信道的同运营商中的传输设备进行复用或者传输设备确定非授权载波可用；在对应的所述CCA检测图样或Muting图样的补集对应的资源或者整个带宽上检测到的能量小于所述第一门限值的情况下，确定所述非授权载波信道为空闲状态；在对应的所述CCA检测图样或Muting图样的补集对应的资源上检测到的能量大于所述第二门限值的情况下，确定以下之一：非授权载波为不可用状态，非授权载波正在被其他传输设备或者异运营商中的设备使用。
可选地，如果传输设备在所述CCA检测图样或Muting图样对应的资源上检测到的能量满足第一门限，而在对应的CCA检测图样或Muting图样补集对应的资源上检测到的能量满足大于第一门限值且小于第二门限值的条件，对于执行有随机回退的LBT过程的传输设备停止当前的LBT过程，根据Muting图样的时域时间长度重新配置随机回退值N，或者，立刻执行LBT Cat2机制，其中，N为大于或等于0的整数，新配置的随机回退值N满足在该Muting图样时域结束的时刻点之前能够递减到0。
可选地，一旦传输设备认为获取到非授权载波的使用权，则在配置的Muting图样以外的所有频域资源上发送信息。
可选地，还包括：同运营商中的基站间采用相同的CCA检测图样。
可选地，同运营商中的所述基站间采用相同的所述CCA检测图样或所述Muting图样包括以下之一：所述运营商的多个基站中的至少一个从CCA图样集合中选择或确定待用于CCA检测的一个或者多个图样，所述多个基站中的至少一个通过X2接口将所述一个或者多个图样或构成图样所采用的参数通知其他基站，其中，所述一个或者多个图样作为CCA检测图样或所述Muting图样，或者，通过预定义方式确定同一运营商中的基站采用的相同所述CCA检测图样或者所述Muting图样；或者，所述基站通过OAM后台配置获取CCA图样所用的参数，从而获知CCA检测时采用的图样。
可选地，还包括以下之一：用户设备通过所述用户设备连接的基站广播通知获取所述CCA检测图样；所述用户设备通过DCI指示获取所述CCA检测图样；所述用户设备通过SIM卡植入CCA图样参数配置获取所述CCA检测图样；所述用户设备通过预定义方式获取所述CCA检测图样。
可选地，所述CCA检测图样，或者，所述Muting图样，或者，构成所述CCA检测图样或所述Muting图样的参数，通过以下至少之一获取：预定义、物理层下行控制信息DCI信令、高层无线资源控制RRC信令、基站和基站之间协商、基站和UE之间约定。
根据本发明的另一个实施例，还提供了一种信道干净评估检测装置，包括：获取模块，用于获取信道干净评估CCA检测图样或者静默Muting图样；检测模块，用于在所述CCA检测图样对应的资源上或者在所述Muting图样对应的资源上对非授权载波信道进行CCA检测。
可选地，所述获取模块用于：根据参数获取所述CCA检测图样或者所述Muting图样， 其中，所述参数包括以下至少之一：时域起始位置，频域起始位置，时域连续资源的长度，频域连续资源的长度，时域资源之间的间隔，频域资源之间的间隔，时域上传输子帧数或传输突发burst长度，频域带宽。
通过本发明上述实施例，采用获取信道干净评估CCA检测图样或者静默Muting图样；在CCA检测图样对应的资源上或者在Muting图样对应的资源上对非授权载波信道进行CCA检测的方式，解决了相关技术中在CCA检测时不能识别干扰源问题，从而导致复用效率低和带来的非授权载波接入概率低的问题，提高了相关技术中资源复用效率和提高信道接入概率。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的信道干净评估检测方法的流程图；
图2是根据本发明实施例的信道干净评估检测装置的结构框图；
图3是根据本发明可选实施例的信道干净评估检测图样的示意图一；
图4是根据本发明可选实施例的信道干净评估检测图样的示意图二；
图5是根据本发明可选实施例的信道干净评估检测图样的示意图三；
图6是根据本发明可选实施例的信道干净评估检测图样的示意图四；
图7是根据本发明可选实施例的信道干净评估检测图样的示意图五；
图8是根据本发明可选实施例的信道干净评估检测图样的示意图六；
图9是根据本发明可选实施例的信道干净评估检测图样的示意图七；
图10是根据本发明可选实施例的信道干净评估检测图样的示意图八；
图11是根据本发明可选实施例的信道干净评估检测图样的示意图九；
图12是根据本发明可选实施例的信道干净评估检测图样的示意图十；
图13是根据本发明可选实施例的信道干净评估检测图样的示意图十一；
图14是根据本发明可选实施例的信道干净评估检测图样的示意图十二；
图15是根据本发明可选实施例的信道干净评估检测图样的示意图十三；
图16是根据本发明可选实施例的信道干净评估检测图样的示意图十四；
图17是根据本发明可选实施例的信道干净评估检测图样的示意图十五；
图18是根据本发明可选实施例的信道干净评估检测图样的示意图十六；
图19是根据本发明可选实施例的信道干净评估检测图样的示意图十七；
图20是根据本发明可选实施例的信道干净评估检测图样的示意图十八。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种信道干净评估检测方法，图1是根据本发明实施例的信道干净评估检测方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，获取信道干净评估(CCA)检测图样或者静默(Muting)图样；
步骤S104，在CCA检测图样对应的资源上或者在Muting图样对应的资源上对非授权载波信道进行CCA检测。
通过上述步骤，利用获取的CCA检测图样或者Muting图样，在CCA检测图样对应的资源上或者在Muting图样对应的资源上对非授权载波信道进行CCA检测，由于使用了图样进行CCA检测从而解决了相关技术中在CCA检测时不能识别干扰源问题，从而导致复用效率低和带来的非授权载波接入概率低的问题，提高了相关技术中资源复用效率和提高信道接入概率。
在上述步骤S102中，可以根据参数获取CCA检测图样或者Muting图样，多种参数均可以得到CCA检测图样或者Muting图样，在一个可选实施例方式中，参数可以包括以下至少之一：时域起始位置，频域起始位置，时域连续资源的长度，频域连续资源的长度，时域资源之间的间隔，频域资源之间的间隔，时域上传输子帧数或传输突发(burst)长度，频域带宽。
上述的这些参数可以有多种可选的实施方式，下面在下文中一一进行说明。需要说明的，以下所说明的仅仅是可选的实施方式。
时域起始位置
时域起始位置可以包括以下至少之一：时域起始子帧索引号，时域起始子帧索引号对应的子帧中的正交频分复用(Orthogonal Frequency Division Multiplexing，简称为OFDM)符号索引号，时域起始子帧索引号对应的时隙索引号，时域起始子帧索引号对应的时隙索引号中的OFDM符号索引号。
下面以一个例子来对时隙索引号进行说明。
在该例子中，时隙索引号为第一预定值，则表示子帧中的前半时隙；时隙索引号为第二 预定值，则表示子帧中的后半时隙；其中，前半时隙和后半时隙均包括6或7个OFDM符号，每个时隙中最小的OFDM符号索引号为0，最大的OFDM符号索引号为5或6。例如，时隙索引号为0，表示子帧中的前半时隙；时隙索引号为1表示子帧中的后半时隙。
频域起始位置
频域起始位置可以包括以下至少之一：频域起始物理资源块(Physical Resource Block，简称为PRB)的索引号，频域上每个PRB中的起始资源粒子(Resource Element，简称为RE)的索引号，频域上RE起始位置相对于整个带宽上RE的索引号，频域起始资源块组RBG的索引号，频域起始资源粒子组REG的索引号，频域起始子带索引。
时域连续资源的长度
时域连续资源的长度可以包括以下至少之一：时域上连续的OFDM符号的数目，时域上连续的子帧数目。
频域连续资源的长度
频域连续资源的长度可以包括以下至少之一：频域上连续的PRB的数目，频域上连续的RE的数目，频域上连续的RBG的数目，频域上连续的REG的数目，频域上连续的子带的数目。
时域资源之间的间隔
时域资源之间的间隔可以包括以下至少之一：时域的上一个资源与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一个资源与下一个资源块之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源块之间的OFDM符号数或子帧数或帧数，其中，两个时域资源和/或资源块之间的符号数是指从上一个资源和/或资源块的结束符号位置开始，到下一个资源和/或资源块的开始符号之间的符号数目；每个时域资源和/或资源块之间的间隔可以相同也可以不同；每个时域资源块中包括的OFDM符号数目可以相同也可以不同。
频域资源之间的间隔
频域资源之间的间隔可以包括以下至少之一：频域上一个PRB与下一个PRB之间包含的PRB数目；频域上一个PRB块与下一个PRB块之间包含的PRB数目；域上一个PRB与下一个PRB块之间包含的PRB数目；频域上一个PRB块与下一个PRB之间包含的PRB数目；频域上一个RE与下一个RE之间包含的RE数目；频域上一个RE块与下一个RE块之间包含的RE数目；频域上一个RE与下一个RE块之间包含的RE数目；频域上一个RE块与下一个RE之间包含的RE数目；频域上一个RBG与下一个RBG之间包含的RBG数目或RB数目；频域上一个RBG与下一个RBG块之间包含的RBG数目或RB数目；频域上一个RBG块与下一个RBG之间包含的RBG数目或RB数目；频域上一个RBG块与下一个RBG块之间包含的RBG数目或RB数目；频域上一个子带与下一个子带之间包含的RB数目或子带数目。
其中，两个频域PRB和/或PRB块之间的PRB数目或间隔是指从上一个PRB和/或PRB块的结束PRB位置开始，到下一个PRB和/或PRB块的开始PRB之间的PRB数目；
两个频域RE和/或RE块之间的RE数目或间隔是指从上一个RE和/或RE块的结束RE位置开始，到下一个RE资源块的开始RE之间的RE数目；
两个频域RBG和/或RBG块之间的RBG数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开始RBG之间的RBG数目；
两个频域RBG和/或RBG块之间的RB数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开始RBG之间的RB数目。
对于频域说那个资源之间的资源数目和间隔来说，可以相同，也可以不同，例如，频域PRB和/或PRB块之间的PRB数目或间隔可以相同也可以不同；频域RE和/或RE块之间的RE数目或间隔可以相同也可以不同；频域RBG和/或RBG块之间的间隔可以相同也可以不同。
对于每个频域资源包括的资源数目来说，可以相同，也可以不同，例如，每个频域RE块中包含的RE数目可以相同也可以不同；每个频域PRB块中包含的PRB数目可以相同也可以不同；每个频域RBG块中包含的RBG/PRB数目可以相同也可以不同；每个子带的带宽可以相同也可以不同。
时域上传输子帧数或传输burst长度
时域上传输子帧数或传输burst长度可以包括以下至少之一：帧的数目，子帧数目，OFDM符号数目，连续占用的子帧数目，连续占用的OFDM符号数目，执行CCA成功时刻开始连续使用的子帧数目，执行CCA成功时刻开始连续使用的时长长度。
频域带宽
频域带宽可以包括以下之一：频域带宽的值，频域带宽对应的PRB总数目，频域带宽对应的RE总数目，频域带宽对应的RBG总数目，频域带宽对应的子带总数目，其中，频域带宽的值可以但不限于为以下之一：5MHz，10MHz，15MHz，20MHz。
在获取CCA检测图样或者Muting图样的过程中，可以由以下频域参数中的至少之一和以下时域参数中的至少之一构成CCA检测图样或者Muting图样，其中，
构成频域图样的参数可以包括下述至少之一：
频域整个带宽、频域上PRB起始索引号、频域上连续PRB的数目、频域上PRB和/或PRB块之间的间隔、频域上起始PRB中的起始RE索引号、频域上RE起始索引号、频域上连续RE的数目、频域上RE和/或RE块之间的间隔、频域上RBG起始索引号、频域上连续RBG的数目、频域上RBG和/或RBG块之间的间隔、频域上子带起始索引号、子带带宽、频域上子带的间隔；
构成时域图样的参数可以包括下述至少之一：
整个时域资源、时域上起始帧索引号、时域上起始帧中起始子帧索引号、时域上起始帧中起始子帧中的时隙索引号、时域上连续的OFDM符号长度、时域上连续的子帧长度、时域上连续的帧索引号、时域上OFDM符号和/或OFDM符号块之间的间隔。
通过对上述频域参数和时域参数的组合可以构成CCA检测图样或者Muting图样。
例如，可以根据构成频域图样的参数确定下述至少之一的图样：RE级的频域图样、PRB级的频域图样、RBG级的频域图样、子带级的频域图样；
可以根据构成时域图样的参数确定下述至少之一的图样：整个时域；时域上一个连续的资源块的图样；时域上间隔相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔相等，且每个时域资源或资源块的大小不相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小不相同的时域图样。
对于上述RE级的频域图样可以包括以下至少之一：每个PRB上RE图样相同，且一个PRB中的一个RE构成的频域图样；每个PRB上的RE图样相同，且一个PRB中一个连续的多个RE构成的频域图样；每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小不相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中不等间隔，每个RE或RE块大小相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中不等间隔，每个RE或RE块大小不相等构成的频域图样；整个带宽上，间隔相等，每个RE或RE块大小相等构成的频域图样；整个带宽上，间隔相等，每个RE或RE块大小不相等构成的频域图样；整个带宽上，不等间隔，每个RE或RE块大小相等构成的频域图样；整个带宽上，不等间隔，每个RE或RE块大小不相等构成的频域图样。
对于上述PRB级的频域图样可以包括以下至少之一：整个频域上，间隔相等，每个PRB或PRB块大小相等构成的频域图样；整个带宽上，间隔相等，每个PRB或PRB块大小不相等构成的频域图样；整个带宽上，不等间隔，每个PRB或PRB块大小相等构成的频域图样；整个带宽上，不等间隔，每个PRB或PRB块大小不相等构成的频域图样。
对于上述子带级的频域图样可以包括以下之一：整个频域上，间隔相等，子带带宽相等构成的频域图样；整个频域上，间隔相等，子带带宽不相等构成的频域图样；整个频域上，不等间隔，子带带宽相等构成的频域图样；整个频域上，不等间隔，子带带宽不相等构成的频域图样。
此外，根据频域图样和时域图样的组合可以获得时频域的图样。
在时频域的图样中，可以随着时间的递增，频域资源图样不变；或者，可以随着时间的递增，频域资源图样呈依次递减或是递增；或者，可以时域上图样连续，频域连续图样呈依次递减或是递增；或者，可以时域上图样连续，频域上离散图样的呈依次递减或是递增；或者，可以时域上图样离散，频域连续图样呈依次递减或是递增；或者，可以时域上图样离散， 频域上离散图样的呈依次递减或是递增；或者，可以时域上图样连续呈依次递增，频域上离散图样呈依次递减或是递增。
在上述图样的使用过程中，对于不同运营商可以配置不同的CCA检测图样或Muting图样；对于同运营商下同系统中传输设备可以配置相同的CCA检测图样或Muting图样；对于同运营商下同系统中的不同传输设备可以配置不同的CCA检测图样或Muting图样。
传输设备可以在配置的CCA检测图样或Muting图样对应的资源上进行CCA检测，下面举例说明在这种情况下的CCA检测过程。
在对应的CCA检测图样或Muting图样对应的资源上检测到的能量小于第一门限值的情况下，确定以下至少之一：非授权载波信道为空闲状态，同运营商中的设备已占用非授权载波信道，非授权载波信道上无异系统存在；
在对应的CCA检测图样或Muting图样对应的资源上检测到的能量大于第一门限值的情况下，确定以下至少之一：非授权载波信道上存在异系统，非授权载波信道不可用，非授权载波信道已被其他系统或异运营商中的设备占用。
其中，当CCA检测图样或Muting图样上的能量小于第一门限值时，第一门限值能够被调整。
同运营商下同系统中传输设备可以在配置的CCA检测图样或Muting图样以外的资源上或整个带宽上进行CCA检测，检测过程如下：
在对应的CCA检测图样或Muting图样的补集对应的资源上或者整个带宽上检测到的能量大于第一门限值，且小于第二门限值的情况下，确定传输设备能够与已占用信道的同运营商中的传输设备进行复用；
在对应的CCA检测图样或Muting图样的补集对应的资源或者整个带宽上检测到的能量小于第一门限值的情况下，确定非授权载波信道为空闲状态；
在对应的CCA检测图样或Muting图样的补集对应的资源上检测到的能量大于第二门限值的情况下，确定以下之一：非授权载波为不可用状态，非授权载波正在被其他传输设备或者异运营商中的设备使用。
其中，如果传输设备在CCA检测图样或Muting图样对应的资源上检测到的能量满足第一门限，而在对应的CCA检测图样或Muting图样补集对应的资源上检测到的能量满足大于第一门限值且小于第二门限值的条件，对于执行有随机回退的LBT过程的传输设备停止当前的LBT过程，根据Muting图样的时域时间长度重新配置随机回退值N，或者，立刻执行LBT Cat2机制。其中，新配置的随机回退值N满足在该Muting图样时域结束的时刻点之前能够递减到0。
此外，一旦传输设备认为获取到非授权载波的使用权，则可以在配置的Muting图样以外的所有频域资源上发送信息。
在检测过程中，同运营商中的基站间可以采用相同的CCA检测图样，采用的图样可以包括以下之一：运营商的多个基站中的至少一个从CCA图样集合中选择或确定待用于CCA检测的一个或者多个图样，多个基站中的至少一个通过X2接口将一个或者多个图样或构成图样所采用的参数通知其他基站，其中，一个或者多个图样作为CCA检测图样或Muting图样，或者，通过预定义方式确定同一运营商中的基站采用的相同CCA检测图样或者Muting图样；或者，基站通过OAM后台配置获取CCA图样所用的参数，从而获知CCA检测时采用的图样。
对于用户设备，可以通过但不限于以下方式获取CCA检测图样：用户设备连接的基站广播通知用户设备获取CCA检测图样；通过DCI指示获取CCA检测图样；通过SIM卡植入CCA图样参数配置获取CCA检测图样；通过预定义的方式获取CCA检测图样。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例的方法。
在本实施例中还提供了一种信道干净评估检测装置，该装置用于实现上述实施例及可选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的信道干净评估检测装置的结构框图，如图2所示，该装置包括：获取模块22和检测模块24，其中，获取模块22，用于获取信道干净评估CCA检测图样或者静默Muting图样；检测模块24，耦合至获取模块22，用于在CCA检测图样对应的资源上或者在Muting图样对应的资源上对非授权载波信道进行CCA检测。
可选地，上述获取模块22用于：根据参数获取CCA检测图样或者Muting图样，其中，参数包括以下至少之一：时域起始位置，频域起始位置，时域连续资源的长度，频域连续资源的长度，时域资源之间的间隔，频域资源之间的间隔，时域上传输子帧数或传输突发burst长度，频域带宽。
可选地，上述时域起始位置可以包括以下至少之一：时域起始子帧索引号，时域起始子帧索引号对应的子帧中的OFDM符号索引号，时域起始子帧索引号对应的时隙索引号，时域起始子帧索引号对应的时隙索引号中的正交频分复用OFDM符号索引号。
可选地，上述时隙索引号为第一预定值，则表示子帧中的前半时隙；时隙索引号为第二预定值，则表示子帧中的后半时隙；其中，前半时隙和后半时隙均包括6或7个OFDM符号，每个时隙中最小的OFDM符号索引号为0，最大的OFDM符号索引号为5或6。
可选地，上述第一预定值可以为0，第二预定值可以为1。
可选地，上述频域起始位置可以包括以下至少之一：频域起始物理资源块PRB的索引号，频域上每个PRB中的起始资源粒子RE的索引号，频域上RE起始位置相对于整个带宽上RE的索引号，频域起始资源块组RBG的索引号，频域起始资源粒子组REG的索引号，频域起始子带索引。
可选地，上述时域连续资源的长度可以包括以下至少之一：时域上连续的OFDM符号的数目，时域上连续的子帧数目。
可选地，上述频域连续资源的长度可以包括以下至少之一：频域上连续的PRB的数目，频域上连续的RE的数目，频域上连续的RBG的数目，频域上连续的REG的数目，频域上连续的子带的数目。
可选地，上述时域资源之间的间隔可以包括以下至少之一：时域的上一个资源与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一个资源与下一个资源块之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源块之间的OFDM符号数或子帧数或帧数。
可选地，两个时域资源和/或资源块之间的符号数是指从上一个资源和/或资源块的结束符号位置开始，到下一个资源和/或资源块的开始符号之间的符号数目。
可选地，每个时域资源和/或资源块之间的间隔可以相同也可以不同。
可选地，每个时域资源块中包括的OFDM符号数目可以相同或者不同。
可选地，上述频域资源之间的间隔可以包括以下至少之一：频域上一个PRB与下一个PRB之间包含的PRB数目；频域上一个PRB块与下一个PRB块之间包含的PRB数目；频域上一个PRB与下一个PRB块之间包含的PRB数目；频域上一个PRB块与下一个PRB之间包含的PRB数目；频域上一个RE与下一个RE之间包含的RE数目；频域上一个RE块与下一个RE块之间包含的RE数目；频域上一个RE与下一个RE块之间包含的RE数目；频域上一个RE块与下一个RE之间包含的RE数目；频域上一个RBG与下一个RBG之间包含的RBG数目或RB数目；频域上一个RBG与下一个RBG块之间包含的RBG数目或RB数目；频域上一个RBG块与下一个RBG之间包含的RBG数目或RB数目；频域上一个RBG块与下一个RBG块之间包含的RBG数目或RB数目；频域上一个子带与下一个子带之间包含的RB数目或子带数目。
可选地，两个频域PRB和/或PRB块之间的PRB数目或间隔是指从上一个PRB和/或PRB块的结束PRB位置开始，到下一个PRB和/或PRB块的开始PRB之间的PRB数目；和/或，两个频域RE和/或RE块之间的RE数目或间隔是指从上一个RE和/或RE块的结束RE位置开始，到下一个RE资源块的开始RE之间的RE数目；和/或，两个频域RBG和/或RBG块之间的RBG数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开始RBG之间的RBG数目；和/或，两个频域RBG和/或RBG块之间的RB数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开 始RBG之间的RB数目。
可选地，频域PRB和/或PRB块之间的PRB数目或间隔可以相同或不同；和/或，频域RE和/或RE块之间的RE数目或间隔可以相同或不同；和/或，频域RBG和/或RBG块之间的间隔可以相同或不同。
可选地，每个频域RE块中包含的RE数目可以相同或者不同；和/或，每个频域PRB块中包含的PRB数目可以相同或者不同；和/或，每个频域RBG块中包含的RBG/PRB数目可以相同或者不同；和/或，每个子带的带宽可以相同或者不同。
可选地，上述时域上子帧数或传输突发burst长度可以包括以下至少之一：帧的数目，子帧数目，OFDM符号数目，连续占用的子帧数目，连续占用的OFDM符号数目，执行CCA成功时刻开始连续使用的子帧数目，执行CCA成功时刻开始连续使用的时长长度。
可选地，频域带宽可以包括以下之一：频域带宽的值，频域带宽对应的PRB总数目，频域带宽对应的RE总数目，频域带宽对应的RBG总数目，频域带宽对应的子带总数目。
可选地，频域带宽的值可以为以下之一：5MHz，10MHz，15MHz，20MHz。
可选地，由以下频域参数中的至少之一和以下时域参数中的至少之一构成CCA检测图样或者Muting图样，其中，构成频域图样的参数可以包括下述至少之一：频域整个带宽、频域上PRB起始索引号、频域上连续PRB的数目、频域上PRB和/或PRB块之间的间隔、频域上起始PRB中的起始RE索引号、频域上RE起始索引号、频域上连续RE的数目、频域上RE和/或RE块之间的间隔、频域上RBG起始索引号、频域上连续RBG的数目、频域上RBG和/或RBG块之间的间隔、频域上子带起始索引号、子带带宽、频域上子带的间隔；和/或，构成时域图样的参数可以包括下述至少之一：整个时域资源、时域上起始帧索引号、时域上起始帧中起始子帧索引号、时域上起始帧中起始子帧中的时隙索引号、时域上连续的OFDM符号长度、时域上连续的子帧长度、时域上连续的帧索引号、时域上OFDM符号和/或OFDM符号块之间的间隔。
可选地，根据构成频域图样的参数可以确定下述至少之一的图样：RE级的频域图样、PRB级的频域图样、RBG级的频域图样、子带级的频域图样；和/或，根据构成时域图样的参数确定下述至少之一的图样：整个时域；时域上一个连续的资源块的图样；时域上间隔相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔相等，且每个时域资源或资源块的大小不相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小不相同的时域图样。
可选地，上述RE级的频域图样可以包括以下至少之一：每个PRB上RE图样相同，且一个PRB中的一个RE构成的频域图样；每个PRB上的RE图样相同，且一个PRB中一个连续的多个RE构成的频域图样；每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小不相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中 不等间隔，每个RE或RE块大小相等构成的频域图样；每个PRB上的RE图样相同，且一个PRB中不等间隔，每个RE或RE块大小不相等构成的频域图样；整个带宽上，间隔相等，每个RE或RE块大小相等构成的频域图样；整个带宽上，间隔相等，每个RE或RE块大小不相等构成的频域图样；整个带宽上，不等间隔，每个RE或RE块大小相等构成的频域图样；整个带宽上，不等间隔，每个RE或RE块大小不相等构成的频域图样。
可选地，上述PRB级的频域图样可以包括以下至少之一：整个频域上，间隔相等，每个PRB或PRB块大小相等构成的频域图样；整个带宽上，间隔相等，每个PRB或PRB块大小不相等构成的频域图样；整个带宽上，不等间隔，每个PRB或PRB块大小相等构成的频域图样；整个带宽上，不等间隔，每个PRB或PRB块大小不相等构成的频域图样。
可选地，上述RBG级的频域图样可以包括以下至少之一：整个频域上，间隔相等，每个RBG或RBG块大小相等构成的频域图样；整个带宽上，间隔相等，每个RBG或RBG块大小不相等构成的频域图样；整个带宽上，不等间隔，每个RBG或RBG块大小相等构成的频域图样；整个带宽上，不等间隔，每个RBG或RBG块大小不相等构成的频域图样。
可选地，上述子带级的频域图样包括以下之一：整个频域上，间隔相等，子带带宽相等构成的频域图样；整个频域上，间隔相等，子带带宽不相等构成的频域图样；整个频域上，不等间隔，子带带宽相等构成的频域图样；整个频域上，不等间隔，子带带宽不相等构成的频域图样。
可选地，根据频域图样和时域图样的可以组合获得时频域的图样。
可选地，在时频域的图样中，随着时间的递增，频域资源图样不变；或者，随着时间的递增，频域资源图样呈依次递减或是递增；或者，时域上图样连续，频域连续图样呈依次递减或是递增；或者，时域上图样连续，频域上离散图样的呈依次递减或是递增；或者，时域上图样离散，频域连续图样呈依次递减或是递增；或者，时域上图样离散，频域上离散图样的呈依次递减或是递增；或者，时域上图样连续呈依次递增，频域上离散图样呈依次递减或是递增。
可选地，上述检测模块24用于：不同运营商配置不同的CCA检测图样或Muting图样；和/或，同运营商下同系统中传输设备配置相同的CCA检测图样或Muting图样；和/或，同运营商下同系统中的不同传输设备配置不同的CCA检测图样或Muting图样。
可选地，上述检测模块24用于：在对应的CCA检测图样或Muting图样对应的资源上检测到的能量小于第一门限值的情况下，确定以下至少之一：非授权载波信道为空闲状态，同运营商中的设备已占用非授权载波信道，非授权载波信道上无异系统存在；在对应的CCA检测图样或Muting图样对应的资源上检测到的能量大于第一门限值的情况下，确定以下至少之一：非授权载波信道上存在异系统，非授权载波信道不可用，非授权载波信道已被其他系统或异运营商中的设备占用。
可选地，当CCA检测图样或Muting图样上的能量小于第一门限值时，第一门限值能够 被调整。
可选地，上述检测模块24用于：在对应的CCA检测图样或Muting图样的补集对应的资源上或者整个带宽上检测到的能量大于第一门限值，且小于第二门限值的情况下，确定传输设备能够与已占用信道的同运营商中的传输设备进行复用；在对应的CCA检测图样或Muting图样的补集对应的资源或者整个带宽上检测到的能量小于第一门限值的情况下，确定非授权载波信道为空闲状态；在对应的CCA检测图样或Muting图样的补集对应的资源上检测到的能量大于第二门限值的情况下，确定以下之一：非授权载波为不可用状态，非授权载波正在被其他传输设备或者异运营商中的设备使用。
可选地，如果传输设备在CCA检测图样或Muting图样对应的资源上检测到的能量满足第一门限，而在对应的CCA检测图样或Muting图样补集对应的资源上检测到的能量满足大于第一门限值且小于第二门限值的条件，对于执行有随机回退的LBT过程的传输设备停止当前的LBT过程，根据Muting图样的时域时间长度重新配置随机回退值N，或者，立刻执行LBT Cat2机制。其中，新配置的随机回退值N满足在该Muting图样时域结束的时刻点之前能够递减到0。
可选地，一旦传输设备认为获取到非授权载波的使用权，则在配置的Muting图样以外的所有频域资源上发送信息。
可选地，上述装置还用于：同运营商中的基站间采用相同的CCA检测图样。
可选地，同运营商中的基站间采用相同的CCA检测图样或Muting图样可以包括以下之一：运营商的多个基站中的至少一个从CCA图样集合中选择或确定待用于CCA检测的一个或者多个图样，多个基站中的至少一个通过X2接口将一个或者多个图样或构成图样所采用的参数通知其他基站，其中，一个或者多个图样作为CCA检测图样或Muting图样，或者，通过预定义方式确定同一运营商中的基站采用的相同CCA检测图样或者Muting图样；或者，基站通过OAM后台配置获取CCA图样所用的参数，从而获知CCA检测时采用的图样。
可选地，上述装置还用于以下之一：用户设备通过用户设备连接的基站广播通知获取CCA检测图样；用户设备通过DCI指示获取CCA检测图样；用户设备通过SIM卡植入CCA图样参数配置获取CCA检测图样；用户设备通过预定义方式获取CCA检测图样。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。
本发明的实施例还提供了一种软件，该软件用于执行上述实施例及优选实施方式中描述的技术方案。
本发明的实施例还提供了一种存储介质。在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
步骤S102，获取信道干净评估(CCA)检测图样或者静默(Muting)图样；
步骤S104，在CCA检测图样对应的资源上或者在Muting图样对应的资源上对非授权载波信道进行CCA检测。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
为了使本发明实施例的描述更加清楚，下面结合可选实施例进行描述和说明。
本发明可选实施例提供了一种干净信道评估图样设计方法及装置。需要说明的是，在本发明可选实施例中提到的设备可以是基站或者是用户设备(如终端)。在特定的Muting RE图样或特定的Muting PRB图样上进行CCA检测，其中，相同的运营商采用相同的Muting RE图样或Muting PRB图样进行CCA检测，不同运营商之间采用不同的Muting RE图样或Muting PRB图样进行CCA检测。此外，同运营商下同系统中不同设备(组)之间可采用不同的Muting RE图样或Muting PRB图样，也可以采用相同的Muting RE图样或Muting PRB图样。
本发明的一个可选实施例提供了下述一种干净信道评估图样设计方法。
在整个带宽上检测到的能量小于门限A的情况下，确定信道空闲，例如，对于LAA系统与Wi-Fi(或LAA)系统共存的场景下，检测门限A设置为-62dBm，或者，可以是在-62dBm基础上偏移一个正负[0，10]或者[0,M]之间的值，其中M是一个正整数，在此种情况下，在整个带宽上检测到的能量是来自于LAA系统和Wi-Fi系统的能量累加，无法区别能量来自于哪个系统。而通过设置特定的LAA系统Muting图样的方法则可以通过在对应Muting RE图样或Muting PRB图样上检测接收到的能量来判断其能量是否来自于异系统，例如，Wi-Fi系统。其中，将在特定的Muting RE图样或Muting PRB图样上检测到的能量，与门限值B进行比较，如果大于门限值B，则认为信道不可用，可能信道正在被其他系统中的节点占用。
在整个带宽上检测到的能量小于门限值B的情况下，确定对应的Muting RE图样或Muting PRB图样上的信道空闲，或者，认为在对应Muting RE图样或Muting PRB图样上检测到的能量是来自于异系统的，则适当的调整CCA检测门限(例如，降低当前CCA检测门限)实现复用；或者，在Muting RE图样或Muting PRB图样补集的资源上检测到能量，与门限值C进行比较，此时，Muting RE图样或Muting PRB图样补集的资源上检测到能量是来自与LAA系统和/或异系统(Wi-Fi系统)的能量累加。如果能量累加值小于门限C，确定信道可用。反之，能量累加值大于门限C，确定信道被占用，或不可用。
其中，门限A，B，C可以设置为不同的值，也可以设置为相同的值，例如，对于门限值B，可以为-70dBm，或者，门限A，B，C可设置为-62dBm加上一个正的或负的[0，10]或者[0,M]之间的正整数值后的值，M为正整数。
对于复用的LAA设备，在对应的Muting RE图样或Muting PRB图样上检测到信道空闲，则认为信道可用。此时，在不考虑异系统的情况下，则LAA设备在对应的Muting RE图样或 Muting PRB图样上检测到的能量为一个接近为零；在考虑异系统的情况下，则需要按照上述的门限B的方法来确定信道是否空闲。可选地，按照上述门限值C来判断在与Muting RE图样或Muting PRB图样互补的资源上的能量是否满足要求，从而确定是否同系统的节点正在使用该信道，从而确定信道是否可以复用。
本发明可选实施例阐述了Muting图样的设计，所述的Muting图样可以应用到在信道的非占用期，发送预留信号或初始信号期，数据传输期。传输设备在对应Muting图样上不进行信息发送或是进行零功率发送，其他传输设备可以在Muting的图样上进行检测，用于识别干扰源(干扰源来自于其他LAA节点或是异系统，可选地，需要确定接收到的信号是来自于运营商内的LAA节点或异运营商中的LAA节点或是异系统中的节点)，此外，可以在Muting图样以外的资源或整个带宽上进行检测，为了获知是否可以实现复用。其中，Muting图样可以是Muting RE级的图样或Muting PRB级的或Muting RBG级的或Muting子带级的图样。下面对可选实施例针对Muting图样进行说明和描述。其中，传输设备也可以是传输设备组，可选地，传输设备或传输设备组可以是基站设备或用户设备UE。
可选实施例一
本可选实施例主要阐述传输设备在不同阶段时进行信道空闲检测时的CCA检测图样，以及待复用的传输设备如何识别干扰源是来自与同运营商中的传输设备还是异运营商中的传输设备，或者，干扰源是来自于同运营商下的同系统中的传输设备或是异系统中的节点。此外，在对应的Muting资源上检测到的能量满足预设CCA门限，可选地，可以调整CCA检测门限，有利于同系统中传输设备更容易接入到非授权载波上。可选地，传输设备在对应Muting资源以外的资源上或整个带宽上检测到的能量在特定的CCA检测门限区间内，则传输设备认为获取到信道的使用权，或，传输设备通过在CCA检测图样进行能量判断，识别了干扰源来自于本系统还是异系统，从而提升复用效率。其中：不同阶段包括非占用信道之前的信道竞争接入阶段，竞争信道成功且未到开始传输时刻的预留信号或初始信号阶段，数据传输阶段。
对于不同的运营商，配置不同的CCA检测图样或Muting图样，其中：不同的CCA检测图样或Muting图样之间是频域上相互正交的。对于同运营商下同系统中LAA传输设备配置相同的CCA检测图样或Muting图样。通过在Muting资源上检测能量是否满足预设门限，从而确定是否存在异系统(如：Wi-Fi系统)。可选地，同系统中的不同LAA传输设备也可以配置不同的CCA检测图样。其中，在对应的CCA图样上进行能量检测之间，传输设备首先要接收整个带宽上的能量，然后在通过时频域变化获取频域上的图样，从而再在对应Muting资源上进行能量判断，以及在Muting资源以外的资源或是整个带宽上进行能量判断。这里假定复用的设备之间是同步的。
对于传输设备在非占用信道之前的信道竞争接入阶段，可标记为第一阶段CCA检测，传输设备可以按照下述之一的CCA检测图样执行信道的空闲检测：
设计1：传输设备在整个频域带宽上执行CCA检测。
如果传输设备在整个频域带宽上检测到的能量满足预设的CCA门限值，其评估检测的信 道为空闲，则传输设备认为信道可用。反之，如果在整个带宽上检测到的能量大于预设CCA门限，其评估检测的信道为忙，则传输设备认为信道被占用。
设计2：传输设备在整个频域带宽上的特定Muting的RE或Muting的RB上进行信道空闲评估CCA检测。如果传输设备在对应的Muting RE或RB上检测到的能量满足预设的CCA门限值1，则评估信道为空闲，或，评估信道上无异系统(如：Wi-Fi系统)存在。其中：预设CCA门限值1可配置为Q值，例如：Q值为-62dBm，或者，可设置为Q值加上一个正的或负的[0，20]或者[0,M]之间的正整数值后的值，M为正整数。可选地，当判断对应Muting RE或RB上的能量满足预设CCA门限1时，可调整(如：提升)CCA检测门限为CCA门限值2。即：预设CCA门限1为-62dBm，则提升为CCA门限值2，例如：-52dBm。目的是用于同系统中的传输设备更容易的接入非授权载波。可选地，在整个频域带宽上Muting RE或RB以外的资源上或整个带宽上进行CCA检测，如果评估的能量小于预设门限值1，则认为信道空闲，或，信道上没有设备正在使用。如果评估的能量大于预设CCA门限1，且小于CCA门限值2，则传输设备认为信道可用，或，传输设备认为该信道满足复用条件可以复用。其中，调整CCA检测门限可以按照预设偏移量Offset进行提升或降低。Offset偏移量可以是±1,±2,±3,±4,±5,±6,±7,±8,±9,±10,±11,±12,…±m，m为整数，即CCA门限2可通过预设CCA门限1+Offset偏移量来确定。反之，如果大于门限值2，则认为信道不可用，或者，不满足复用的条件，或者，信道正在被占用。
设计3：传输设备在整个带宽上Muting特定的RBG或者RBG块，在对应Muting的RBG或者RBG块上进行CCA检测，如果检测到信道空闲，则认为信道可用。(其中，在Muting的资源上以及整个带宽或是Muting资源以外的资源上的CCA检测方法同上)。反之，如果在对应的Muting RBG或者RBG块检测到信道不空闲，则认为信道不可用。其中，一个RBG中包含的RB数目与系统带宽有关，一个RBG块中包含的RBG数目可以预定义确定。Muting的特定RBG或者RBG块可以是整个频域带宽上等间隔的，或者，不等间隔的。例如：系统带宽为20MHz(等同于100个RB)对应一个RBG大小为4，即一个RBG中有4个RB，20MHz系统带宽中包含25个RBG。间隔可以是RBG为单位或是RB为单位。
设计4：传输设备在整个带宽上Muting特定的子带，在对应Muting的子带上进行CCA检测，如果检测到信道空闲，则认为信道可用。(其中，在Muting的资源上以及整个带宽或是Muting资源以外的资源上的CCA检测方法同上)。反之，如果检测到信道不空闲，则认为信道不可用。例如：系统带宽10MHz，子带带宽为5MHz，其传输设备可以在整个带宽上Muting上半子带，或下半子带，在对应的子带上执行CCA检测，如果检测到的能量满足对应的预设CCA门限值，则认为信道可用。反之，则认为信道不可用。例如：对于LAA与Wi-Fi系统共存场景，预设CCA门限可以设置为-62dBm。而对于LAA与LAA共存场景，则预设CCA门限可以设置为-62dBm或-52dBm。Wi-Fi与Wi-Fi系统共存场景，预设CCA门限可以设置为-82dBm。
其中，特定的Muting图样可为下述之一：将整个带宽划分为K个连续的PRB块或RE块或RBG块或K个子带，则整个带宽可以配置给K个传输设备，且每个传输设备配置的Muting 图样彼此正交，且它们均在各自的资源块(PRB块或RE块或RBG块或子带)上进行CCA检测；在整个带宽中由等间隔离散的Muting PRB或者PRB块或Muting RE或者RE块组成的图样上进行CCA检测。例如，假定有2个传输设备，每个PRB或者PRB块或者RE块中仅有一个PRB或RE，则PRB索引或RE索引为奇数的频域资源图样为两个设备中一个设备的CCA检测时对应的频域图样，为偶数索引号的PRB或RE组成的图样为另一个设备执行CCA检测时对应的频域图样；在整个带宽上由不等间隔的PRB(或PRB组)或RE(或RE组)组成的资源图样上执行CCA检测；在整个带宽上由等间隔或不等间隔的RBG或者RBG块组成的资源图样上执行CCA检测；在整个带宽上等间隔的或不等间隔的子带组成的资源图样上执行CCA检测。PRB或RE或RBG或子带资源上进行零功率发送。即Muting特定的PRB或RE或RBG或子带图样。用于传输设备在信道的竞争接入时确定信道是否可用，或者，用于提供复用的传输设备进行同运营商或异运营商或异系统的识别，从而确定是否可以复用。
对于传输设备在非占用信道之前的信道竞争接入阶段所采用的CCA检测图样或Muting图样的具体设计详见实施例二和后续的实施例。
此外，在传输设备成功完成先听后说LBT过程的时刻未到子帧边界的情况下，则需要发送预留信号或初始信号。其中，预留信号或初始信号可以在频域上全带宽发送，或者，在频域上按照特定Muting图样进行发送。时域上从LBT执行成功时刻直到传输时刻或者子帧边界开始之前发送预留信号。此外，Muting的图样可以是整个带宽中的连续的PRB(或者PRB块)或RE(或者RE块)组成的资源；或者，整个带宽中的有一定间隔的多个离散的特定PRB(或PRB组)或RE(或RE组)组成的资源。其中，PRB(或PRB组)或RE(或RE组)之间的间隔可以相同或是不同，和/或，每个PRB组或RE组中包含的PRB或RE数目可以相同或是不同；或者，整个带宽中的特定的连续RBG(或者RBG块)组成的资源；或者，整个带宽中的有一定间隔的多个离散的特定RBG(或者RBG块)组成的资源图样；或者，整个带宽中的特定子带组成的资源。其预留信号或初始信号图样是由Muting图样和Muting图样补集组成的。图样可以是RE或RB或RBG或子带级别的。其中：子带可以为包含若干个RB、RE或RBG的资源。预留信号或初始信号期采用的图样可以与非占用信道之前的信道竞争接入阶段的CCA检测图样或Muting图样相同或是不同。此外，待复用的传输设备或继续执行LBT过程的传输设备在已成功完成LBT过程的传输设备发送预留信号或初始信号阶段，继续进行CCA检测的判断信道是否可用或可用复用的准则同上。
传输设备发送预留信号或初始信号(带图样的预留信号或初始信号)的目的，一方面在于占住信道，以免被其他传输设备抢走；另一方面在于同运营商下的传输设备可以识别该信道是否可用或复用，或者，该信道正在被同运营商下的设备占用，从同系统复用角度可认为信道是空闲；此外，可用于提供系统同步或发送特定的参考信号，如：PSS/SSS，CRS，SRS等。
例如，如果按照同运营商中传输设备的预留信号图样进行对应频域上的CCA检测，认为信道可用的方式为：设备(或复用的设备)可以通过解析对应预留信号资源上的信息，判断是否为同运营商中的设备或者同小区中的UE占用了信道。如果能正确解析接收到的信息，则 认为信道可用。或者，接收整个带宽上的能量，并进行时频域变化后获取到频域图样，可选地，传输设备(或复用的设备)在预留信号或初始信号上对应的Muting资源或零功率资源进行信道的空闲检测，如果检测到的能量满足预设的CCA门限值，则认为对应资源上无异运营商传输设备或是无异系统传输设备存在。可选的，在对应Muting资源上或是零功率资源上检测到能量满足预设门限值，则可调整CCA检测门限。其中：调整后的CCA门限使用在时域一个时隙(slot)时间或一个OFDM符号时间或一个子帧时间或一个传输burst时间。可选地，传输设备在Muting图样补集或零功率发送资源补集上进行CCA检测，或者，在整个带宽上进行CCA检测，此时的CCA门限可以采用调整后的CCA门限，或采用预设的CCA检测门限，如果检测到的能量小于调整后的CCA门限且大于预设门限值，则传输设备认为信道可用，或可复用。而当在整个带宽或Muting图样补集或零功率发送资源补集上进行CCA检测小于预设门限，则传输设备认为信号是空闲的。如果在整个带宽或Muting图样补集或零功率发送资源补集上进行CCA检测能量大于预设门限，且也大于可复用的CCA检测门限，则认为信道不可用，或传输设备不可复用当前检测信道。预设CCA门限值可配置为-62dBm，或者，可设置为-62dBm值加上一个正的或负的[0，20]或者[0,M]之间的正整数值后的值，M为正整数，如-70dBm。可选地，当判断到对应Muting RE或RB或RBG或子带上的能量满足预设门限时，则提升CCA检测门限为门限值为-52dBm。调整CCA检测门限可以按照预设偏移量Offset进行提升或降低。Offset偏移量可以是±1,±2,±3,±4,±5,±6,±7,±8,±9,±10,±11,±12,…±m，m为整数。例如：提升后的CCA门限可以是-52dBm+Offset值。
对于传输设备在预留信号或初始信号期所采用的CCA检测图样或Muting图样的具体设计可参见实施例二和后续的实施例。预留信号或初始信号阶段和非占用信道之前的信道竞争接入阶段采用的CCA检测图样或Muting图样可以是RE级或RB级或RBG级或子带级，优选地，配置为RB或RBG或子带级，次选地，配置为RE级图样。时域上可以是连续的资源(块)。但也不限于此。
当下行支持部分子帧(部分子帧位于子帧的最后或最开始)或是浮动(floating)传输时间间隔(Transmission Time Interval，简称为TTI)时，基站一旦完成LBT过程，即可进行数据传输或发送预留信号直到子帧边界开始进行数据传输。。为了提高下行复用效率，在数据传输期增加CCA检测机会，用于同运营商下的基站可以通过数据传输期Muting的时频域图样来进行识别信道正在被同运营商下的基站或是异运营商中的基站或是异系统中的节点占用。通过不同运营商或异运营商中基站间采用不同的时和/或频域数据传输期CCA检测图样来确定是否目前信道可用。同系统的基站采用相同的CCA检测图样，从而在数据传输期对应的特定时域位置上的特定频域资源进行CCA检测，判断信道是否可用或可用复用的准则同上，或，判断是否存在异系统，或是否被占用准则也同上。其中，对于下行采用的LBT Cat4机制，且竞争窗比较大，假如一个基站已经成功占用信道开始进行传输，则未完成LBT Cat4过程或正在执行LBT过程的基站在对应的特定时域位置上的特定频域资源上进行CCA检测，如果基站在CCA检测图样或Muting图样对应的资源上检测到的能量满足第一CCA门限，而在对应的CCA检测图样或Muting图样补集对应的资源上检测到的能量满足大于第一门限值且小于第二门限值的条件，对于执行有随机回退的LBT过程的传输设备可以停止当前的LBT过程，根据 Muting图样的时域时间长度重新配置随机回退值N，或者，立刻执行LBT Cat2机制，或者，继续执行当前的LBT过程。其中，新配置的随机回退值N满足在该Muting图样时域结束的时刻点之前能够递减到0。
对于UE侧，如果完成LBT过程的时刻恰好到子帧边界或在对应的开始传输的时刻，则UE开始进行数据传输。为了实现或提高上行的多用户复用，在数据传输期内增加了一定的CCA检测机会。实现复用或是识别是否为同小区中的UE或是同运营商中的UE正在使用物理上行共享信道(Physical Uplink Shared Channel，简称为PUSCH)资源，可在数据传输期中的特定的时域资源位置上按照特定的Muting RE或PRB或RBG或子带图样进行CCA检测。或者是将在数据传输期中的特定的时域资源位置上Muting整个带宽上的资源用于待复用的用户设备或正在进行CCA检测的用户设备或准备进行CCA检测的用户设备进行CCA检测。其中，特定的时域资源可以是整个数据传输期，或者，离散的K个OFDM符号(块)，或者，离散的K个时间段。时间段是周期的出现或是非周期的出现，即时域时间段是等间隔的或是不等间隔。每个时间段或OFDM符号块的长度可以相同或是不同。
对于传输设备在数据传输期所采用的CCA检测图样的具体设计可参见实施例二和后续的实施例。与非占用信道之前的信道竞争接入阶段，预留信号或初始信号节点不同之处在于，传输burst中或是在传输的子帧中Muting一个或多个特定的时域资源。优选地，每个子帧中的前面或中间或最后一个或两个OFDM符号上特定频域资源进行Muting或零功率发送。或者，在子帧的前半子帧或后半子帧，或子帧的中间，或在子帧中的每个时隙中的特定OFDM符号，或，间隔一定子帧或是一定符号或一定的时间的Muting图样。
数据传输期的频域图样可以与预留信号或初始信号期采用的图样，非占用信道之前的信道竞争接入阶段的CCA检测图样或Muting图样相同或是不同。数据传输期的CCA检测图样或Muting图样优选地为Muting RE级别的图样。
不同阶段采用的图样可以参见下面实施例中的图样设计。其中，获取CCA图样所涉及的参数包括以下至少之一：
时域起始位置，频域起始位置，时域连续资源的长度，频域连续资源的长度，时域资源之间的间隔，频域资源之间的间隔，时域上传输子帧数或传输突发burst长度，频域带宽。
其中：时域起始位置包括以下至少之一：
时域起始子帧索引号，所述时域起始子帧索引号对应的子帧中的OFDM符号索引号，所述时域起始子帧索引号对应的时隙索引号，所述时域起始子帧索引号对应的所述时隙索引号中的正交频分复用OFDM符号索引号。
频域起始位置包括以下至少之一：
频域起始物理资源块PRB的索引号，频域上每个PRB中的起始资源粒子RE的索引号，频域上RE起始位置相对于整个带宽上RE的索引号，频域起始资源块组RBG的索引号，频域起始资源粒子组REG的索引号，频域起始子带索引。
时域连续资源的长度包括：时域上连续的OFDM符号的数目，时域上连续的子帧数目。
频域连续资源的长度包括以下至少之一：
频域上连续的PRB的数目，频域上连续的RE的数目，频域上连续的RBG的数目，频域上连续的REG的数目，频域上连续的子带的数目。
时域资源之间的间隔包括：时域的上一个资源与下一个资源之间的OFDM符号数或子帧数或帧数或时间长度，时域的上一个资源与下一个资源块之间的OFDM符号数或子帧数或帧数或时间长度，时域的上一个资源块与下一个资源之间的OFDM符号数或子帧数或帧数或时间长度，时域的上一个资源块与下一个资源块之间的OFDM符号数或子帧数或帧数或时间长度。其中，所述资源块中包含至少一个OFDM符号，两个资源块之间的符号数或子帧数或帧数或时间长度是指从上一个资源块的结束位置开始，到下一个资源块的开始位置之间的符号数目或子帧数或帧数或时间。或者，时域上一个资源块与下一个资源块之间的时间长度，其中，所述资源块为时域连续的一段时间长度。时域资源之间的间隔可以是OFDM符号级的，或，子帧级的，或，帧级的，或，连续的时间t。
频域资源之间的间隔包括以下至少之一：频域上一个PRB与下一个PRB之间包含的PRB数目；频域上一个PRB块与下一个PRB块之间包含的PRB数目；频域上一个PRB与下一个PRB块之间包含的PRB数目；频域上一个PRB块与下一个PRB之间包含的PRB数目；频域上一个RE与下一个RE之间包含的RE数目；频域上一个RE块与下一个RE块之间包含的RE数目；频域上一个RE与下一个RE块之间包含的RE数目；频域上一个RE块与下一个RE之间包含的RE数目；频域上一个RBG与下一个RBG之间包含的RB数目；频域上一个子带与下一个子带之间包含的RB或子带数目；
时域上传输子帧数或传输突发burst长度包括以下至少之一：连续占用的子帧数目，执行CCA成功时刻开始连续使用的子帧数目，执行CCA成功时刻开始连续使用的时长长度。
频域带宽包括以下之一：频域带宽的值，所述频域带宽对应的PRB总数目，所述频域带宽对应的RE总数目，所述频域带宽对应的RBG总数目，所述频域带宽对应的子带总数目。
频域带宽的值为以下之一：5MHz，10MHz，15MHz，20MHz。
可选实施例二
本可选实施例主要侧重于频域上以每个PRB上Muting特定的RE组成的频域图样，时域上Muting特定的连续k个OFDM符号的时域图样，由不同的时频域Muting位置构成不同的CCA检测时频域图样。其中，时域图样与传输burst长度或子帧数目有关。
由参数：频域起始物理资源块PRB的索引号，频域上每个PRB中的起始资源粒子RE的索引号，频域上连续的RE的数目，频域上一个RE(块)与下一个RE(块)之间包含的RE数目构成频域上的检测图样。时域上图样为起始的子帧索引号，起始子帧中的起始OFDM符号索引，连续OFDM符号数构成时域连续的图样。
图3是根据本发明可选实施例的信道干净评估检测图样的示意图一，如图3所示的是：频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#3，频域上连续的RE的数目为1，频域上一个RE与下一个RE之间包含的RE或RB数目分别为11个RE。时域上是连续K个OFDM符号，例如：子帧subframe#0中OFDM#12开始，连续2个OFDM符号。或，从OFDM#13开始，连续一个OFDM符号。由此构成一个CCA检测的时频域图样。即，由上述参数组成Muting区域或零功率发送区域。用于同运营商中的设备进行图样识别，从而确定是否同运营商中的设备正在使用设备或是可以获取到该载波的使用权或可用实现复用。即传输设备在接收整个带宽上的能量，并进行时频域变化后获取到频域图样，可选地，传输设备(或复用的设备)在整个带宽上每个PRB中的RE#3上进行信道的空闲检测，如果检测到的能量满足预设的CCA门限值，如：-62dBm，则认为对应资源上无异系统传输设备存在。可选的，在对应Muting资源上或是零功率资源上(即每个PRB中的RE#3)检测到能量满足预设门限值，则可调整CCA检测门限，如：-52dBm。可选地，传输设备在Muting图样补集或零功率发送资源补集上进行CCA检测，或者，在整个带宽上进行CCA检测，此时的CCA门限可以采用调整后的CCA门限，或采用预设的CCA检测门限，如果检测到的能量小于调整后的CCA门限且大于预设门限值，则传输设备认为信道可用，或可复用。一旦传输设备占用信道后，必须在Muting图样以外的资源上发送信息，占住信道。
对于基站侧，按照LBT Cat4执行信道的竞争接入，且最小竞争窗为7，最大竞争窗为15，按照随机的方式产生一个随机回退值N为10，或者，预定义随机回退值N为10，则按照现有的LBT Cat4流程完成LBT过程最少需要2个OFDM符号，即时域上基站从开始执行LBT过程到至少2个OFDM符号的时间上一直进行CCA检测。而图3给出的仅是一种情况，即频域上按照每个PRB上的第三个RE资源，时域上持续k个OFDM符号的时间上执行CCA检测。其中，对于基站侧，由于最大竞争窗为1024，图3示意的k个连续的OFDM符号的符号数可以配置，或根据LBT Cat4机制中参数决定。而对于跨载波调度，基站不执行LBT过程，为了LAA与Wi-Fi系统之间具有公平的信道接入机会，UE侧也需要执行一个类似于下行LBT Cat4的信道竞争接入过程，但竞争窗小于下行采用的竞争窗大小，因此，对于跨载波调度的情况，UE完成整个LBT过程可能也需要至少一个OFDM符号的时间，可能也会持续多个OFDM符号的时间。而对于自载波调度，由于基站侧已经执行了一个LBT Cat4过程，当UE侧在进行数据开始传输之前优选的需要执行一个简化的LBT过程，如LBT Cat2或增强的LBT Cat2，或者，快速的LBT过程。此时，时域上UE仅需要持续几个OFDM符号的时域长度，优选地，一个OFDM符号或2个OFDM符号时域长度。该种图样上，整个带宽上也可以实现12个不同传输设备的图样配置，即每个传输设备在每个PRB中12个RE中的某个特定RE上进行零功率发送或进行静默Muting。例如：12个传输设备通过所述RE索引号和传输设备数求模所得值确定每个PRB中Muting资源。
图4是根据本发明可选实施例的信道干净评估检测图样的示意图二，图4中所示的是：频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#3，频域上连续的RE的数目为M，频域上一个RE块与下一个RE块之间包含的RE数目分别为12-M个RE。时域上是连续K个OFDM符号。例如：频域上，每个PRB中的起始RE 索引x0为3，连续的RE数为3，上一个RE块与下一个RE块之间的RE数为12-3＝9，时域上，子帧subframe#0中OFDM#12开始，连续2个OFDM符号。或，从OFDM#13开始，连续一个OFDM符号。由此构成一个CCA检测的时频域图样。即，由上述参数组成Muting区域或零功率发送区域。
其中：时域长度K与设备采用的LBT机制中的参数配置值有关，或是，预定义，或者，基站配置。
下面举例说明：每个PRB中等间隔的Muting M个离散的RE(块)，时域连续的k个OFDM符号构成的CCA检测图样。
图5是根据本发明可选实施例的信道干净评估检测图样的示意图三，图5中所示的是：频域上等间隔的离散RE的一个PRB中的Muting图样，即频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#3，频域上连续的RE的数目为1，频域上一个RE块与下一个RE块之间包含的RE数目分别为2个RE，一个PRB中离散的RE数目M为4，时域上是连续K个OFDM符号。其中，时域长度K与设备采用的LBT机制中的参数配置值有关，或是，预定义配置，或者，基站配置；M值可以预定义，或者，基站配置；RE的间隔值可以预定义，或者基站配置。
图6是根据本发明可选实施例的信道干净评估检测图样的示意图四，图6中所示的是：频域上等间隔的离散RE块且每个RE块大小相同的一个PRB中的Muting图样，即频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#2，频域上连续的RE的数目为2，频域上一个RE块与下一个RE块之间包含的RE数目分别为1个RE，一个PRB中离散的RE数目M为4，时域上是连续K个OFDM符号。其中，一个PRB中的离散RE(或RE块)索引号和/或RE块中包括的连续RE长度S可以预先指定，或者，基站配置(或指示)；时域长度K与设备采用的LBT机制中的参数配置值有关，或是，预定义配置，或者，基站配置；M值可以预定义，或者，基站配置，或者，根据一个RB中包含的RE总数和连续的RE数目和每个RE(块)间隔数目来隐式确定。此外，一个PRB中每个RE块中的包含的连续RE的个数可以相同，或者，不同。图6所示为每个RE块中包含的连续RE个数相同。
图7是根据本发明可选实施例的信道干净评估检测图样的示意图五，图7中所示的是：频域上等间隔的离散RE块且每个RE块大小不同的一个PRB中的Muting图样，即频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#2，一个RE上有M为4个离散的Muting RE块，第一个RE块为RE#2，第二个RE块为RE#4～RE#6，第三个RE块为RE#8～RE#9，第四个RE块为RE#11～RE#12，其中，第一个RE块中包含1个RE，第二个RE块中包含3个连续的RE，后面两个RE块均包含连续的2个RE，且每个RE块之间的间隔为1。时域上是连续K个OFDM符号。一个PRB中的离散RE(块)索引号和/或RE块中包括的连续RE长度S可以预先指定，或者，基站配置(或指示)；时域长度K与设备采用的LBT机制中的参数配置值有关，或是，预定义配置，或者，基站配置；M值可以预定义，或者，基站配置，或者，根据一个RB中包含的RE总数和连续的RE数目和每个 RE(块)间隔数目来隐式确定。此外，一个PRB中每个RE块中的包含的连续RE的个数可以相同，或者，不同。图7所示为每个RE块中包含的连续RE个数不相同。
下面举例说明：每个PRB中不等间隔的M个离散的RE(块)，时域连续的k个OFDM符号构成的CCA检测图样。
图8是根据本发明可选实施例的信道干净评估检测图样的示意图六，图8中所示的是：频域上不等间隔的离散RE的一个PRB中的Muting图样，即频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#3，每个PRB中离散的RE数目M为4。其中，4个离散的RE位置索引为RE#3，RE#5，RE#9，RE#12。即传输设备在整个带宽中每个PRB中RE#3，RE#5，RE#9，RE#12上进行零功率发送或是Muting静默。时域上是连续K个OFDM符号。其中，一个PRB中的RE索引可以预先指定，或者，基站配置(或指示)；时域长度K与设备采用的LBT机制中的参数配置值有关，或是，预定义配置，或者，基站配置；M值可以预定义，或者，基站配置。
图9是根据本发明可选实施例的信道干净评估检测图样的示意图七，图9中所示的图为每个PRB上每个RE块之间不等间隔，且每个RE块中包含的连续RE数目相同的示意图。即：频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#0，每个PRB中离散的RE数目M为3，即一个PRB中有3个离散的Muting RE块，第一个RE块为RE#1～RE#2，第二个RE块为RE#5～RE#6，第三个RE块为RE#11～RE#12，其中，每个RE块中均包含2个连续的RE；每个RE块之间的间隔是不相同的，第一个RE块与第二个RE块之间间隔为2，第二个RE块与第三个RE块之间的间隔为4；一个PRB中的离散RE(块)索引号和/或RE块中包括的连续RE长度S可以预先指定，或者，基站配置(或指示)；时域长度K与设备采用的LBT机制中的参数配置值有关，或是，预定义配置，或者，基站配置；M值可以预定义，或者，基站配置。
图10是根据本发明可选实施例的信道干净评估检测图样的示意图八，图10中所示的图为每个PRB上每个RE块之间不等间隔，且每个RE块中包含的连续RE数目不相同的示意图。即：频域起始物理资源块PRB的索引号为PRB#0，每个PRB中的起始资源粒子RE的索引号为RE#1，每个PRB中离散的RE数目M为3，即一个PRB上有3个离散的Muting RE块，第一个RE块为RE#2，第二个RE块为RE#5～RE#7，第三个RE块为RE#11～RE#12，其中，第一个RE块中包含1个RE，第二个RE块中包含3个连续的RE，第三个RE块包含连续的2个RE；每个RE块之间的间隔是不相同的，第一个RE块与第二个RE块之间间隔为2，第二个RE块与第三个RE块之间的间隔为3；一个PRB中的离散RE(块)索引号和/或RE块中包括的连续RE长度S可以预先指定，或者，基站配置(或指示)；时域长度K与设备采用的LBT机制中的参数配置值有关，或是，预定义配置，或者，基站配置；M值可以预定义，或者，基站配置。
本实施例中所述CCA检测图样或Muting图样仅是一些特例，但并不拘泥于上述图样。传输设备(指基站或者终端)或设备组按照上述特定的频域图样，而时域为连续的k个OFDM符号时间内执行LBT过程。本可选实施例，尤其适用于在占用信道之前执行LBT过程，原因 在于采用连续的时间段为了让设备充分的完成LBT过程，从而快速接入信道。但其频域图样也同样可以应用于预留信号期和/或数据传输期，原因在于，在预留信号期和/或数据传输期仅Muting特定的RE或PRB资源用于复用的设备进行图样识别，从而确定是同运营商或是异系统正在占用信道。此外，降低了传输资源的浪费，可选提高系统性能。
设备在占用信道之前，执行LBT过程采用的CCA检测频域图样可以为在全带宽上执行CCA检测，例如，如果在整个带宽上接收到的信号能量满足一定的门限值要求，则认为信道空闲；否则，认为信道不可用，或信道已被占用。
在按照同运营商中LAA系统设定的特定Muting RE或PRB或RBG或子带图样进行CCA检测时，由于LAA系统在对应的图样上是静默的，即不发送信号，因此，可以在对应的Muting RE或PRB图样进行检测能量是否满足CCA门限X的要求，此门限是为了判断该资源上是否有来自于异系统的能量，其中，如果判断无来自于异系统的能量，则认为信道空闲可用，仅有本系统存在。可以调整CCA检测门限，例如：降低当前设定的门限值。此外，在Muting RE或PRB或RBG或子带图样互补的资源上或整个带宽上检测到的能量满足CCA门限区间的要求的情况下，则可以认为是本系统的设备正在使用信道或可用复用，否则，不满足门限的情况下，例如，大于门限值Y，则认为信道被占用，本系统目前不可以复用该信道。此外，如果给LAA系统中的设备配置或是LAA系统中的设备具有Wi-Fi模块的功能，LAA设备也可以检测Wi-Fi系统发送的随机接入前导码(Preamble)，从而确定是否存在Wi-Fi系统。
另一种情况，可以采用ZP-CSI-RS图样来作为传输设备进行CCA检测是采用的图样。由于目前ZP-CSI-RS图样时频域位置数量少，可以适当增加一些零功率RE资源位置。
其中上述的频域图样也可以是不以PRB为单位设计RE图样，可以以整个带宽中的总RE上根据起始的RE索引号，连续的RE数目，每个Muting RE(块)之间的间隔确定Muting的CCA检测RE图样。其中，可用是整个带宽上的等间隔的RE构成的Muting图样，或，整个带宽上等间隔且相同的RE块大小构成Muting图样，或，整个带宽上的等间隔且不同的RE块大小构成的Muting图样，或，整个带宽上的不等间隔的RE构成的Muting图样，或，整个带宽上不等间隔且相同的RE块大小构成Muting图样，或，整个带宽上的不等间隔且不同的RE块大小构成的Muting图样。图样构成方式同上述一个PRB上的Muting图样方式。
可选实施例三
本可选实施例主要侧重于频域上以每个PRB上Muting特定的RE组成的频域图样，时域上Muting特定的离散的k个OFDM符号(块)的时域图样，由不同的时频域Muting位置构成不同的CCA检测时频域图样。其中，时域图样与传输burst长度或子帧数目有关。
与实施例二不同之处在于，时域图样由离散的OFDM符号或OFDM符号块或时间段组成时域的CCA检测图样位置。频域图样同实施例一。
下面举例说明时域Muting图样：其时域图样由以下参数至少之一确定：时域起始帧号，起始的子帧号，起始的子帧号中的起始OFDM符号索引号，连续的OFDM符号数，每个Muting  OFDM符号(块)或时间段之间的间隔，传输burst长度或子帧长度。
图11是根据本发明可选实施例的信道干净评估检测图样的示意图九，图11中所示为传输设备从时域上t0时刻开始到t1时刻结束，持续t时间长度的示意图。其中：t0，t1时刻可以是一个子帧中的任意时刻，t1>t0。即传输设备在t0时刻开始进行CCA检测，且执行LBT过程的可用使用有t时间。
其中：图12是根据本发明可选实施例的信道干净评估检测图样的示意图十，图12所示时域图样为一个子帧中的最后一个OFDM符号，时域上每个Muting时域资源(块)之间的间隔为k。本实施例中k为一个子帧。例如：一个传输burst中包含4个子帧，按照图12的示意图，每个子帧中的最后一个OFDM符号上用于传输设备进行CCA检测。此外，burst中的第一个子帧中的最后一个OFDM符号，时域上第二个时域Muting位置与第一个时域Muting位置之间间隔为2个子帧，即，第二个时域Muting位置为第三个子帧中的最后一个OFDM符号位置。其中：时域上Muting的资源位置数目与传输burst长度或连续占用子帧数目，起始的时域位置，连续的时域长度有关，两个时域Muting位置之间的间隔有关。此外，Muting的时域位置可以是子帧的第一个OFDM符号或是子帧中的某一OFDM符号。
图13是根据本发明可选实施例的信道干净评估检测图样的示意图十一，图13所示时域图样为时域起始为一个子帧中的第14-S个符号，连续的OFDM符号数为S，每个连续Muting的OFDM符号之间的间隔为14-S个符号或P个子帧+14-S个符号。这里，假定：连续的OFDM符号数S为3，两个连续的Muting的OFDM符号之间的间隔为14-3＝11个符号。即每个子帧中的最后3个OFDM符号上用于传输设备进行CCA检测。可选的，时域起始可为一个子帧中的前S个符号，或中间的S个OFDM符号。每个连续的Muting的OFDM符号或时间段可以是周期T出现，或非周期出现的。即，等间隔时域图样，或不等间隔时域图样。
下面主要侧重于时域图样以时隙为周期出现。但一个子帧中每个时隙图样可以相同，但时隙图样也可以是以子帧为单位周期出现，或，以时隙为单位周期出现。下面举例均以一个子帧中的时隙图样进行说明，但不仅局限于此。时隙图样也可以非周期的出现。
图14是根据本发明可选实施例的信道干净评估检测图样的示意图十二，图14所示时域图样为一个子帧中每个时隙的第p个OFDM符号开始，连续的OFDM符号数目S的示意图。其中，p可从[0,7-S]之间选择，S长度取决于p和一个时隙的长度。图14中示意的是从一个时隙的第一个OFDM符号开始，连续的OFDM符号数S为1。即，一个子帧中的时域图样位置：OFDM符号#0，OFDM符号#7。其中，在时域上OFDM符号#0，OFDM符号#7图样可以是以周期T出现，或非周期的出现该图样。周期T可以是一个子帧或是多个子帧。周期T也可以与传输burst长度有关。也就是说，可以每个子帧中都出现Muting OFDM符号#0，OFDM符号#7图样，或间隔多个子帧出现一次Muting OFDM符号#0，OFDM符号#7图样。此外，每个时隙中Muting的图样起始位置可以是从第一个OFDM符号开始，也可以从[0,6]之间的任意一个OFDM符号位置开始，或最后一个OFDM符号开始。而图15是根据本发明可选实施例的信道干净评估检测图样的示意图十三，图15所示时域图样为一个子帧中每个时隙的第0个OFDM符号开始，连续的OFDM符号数目S为2的示意图。
而图16是根据本发明可选实施例的信道干净评估检测图样的示意图十四，图16所示时域图样为一个子帧中每个时隙的第p个OFDM符号开始，连续的OFDM符号数目为S且每个每个时隙中两个时域位置之间的间隔f的示意图。从图16可以看出，时域中一个子帧中每个时隙中从第0个OFDM符号，连续的OFDM符号数目S为1，且一个时隙中两个Muting时域位置间间隔f为5。此外，这个一个子帧中的是时隙图样可以是周期T出现一次，或是非周期的出现。特殊的，每个子帧中出现上述图样。即每个子帧中的OFDM符号#0，#6，#7，#13上进行CCA检测。另一个情况，一个时隙中有6或7个OFDM符号，一个OFDM符号块中包含的连续OFDM符号数目，一个时隙中包含几个OFDM符号块可以确定每个OFDM符号块之间的间隔，也预定义获取，或，基站指示，或DCI通知。当然，一个子帧中的时域图样可以是间隔一定的子帧数目或是OFDM符号数目出现一次上述子帧中的时隙Muting图样。
可选实施例四
本可选实施例主要侧重于频域上以Muting特定的PRB组成的频域图样，时域上Muting特定的离散的k个OFDM符号(块)或连续的k个OFDM符号(块)的时域图样或连续的k个OFDM符号或时间段，由不同的时频域Muting位置构成不同的CCA检测时频域图样。其中，时域图样与传输burst长度或子帧数目有关。
本实施例与实施例二和三之间的区别在于，频域上的图样以PRB为Muting粒度。时域图样可以参考实施例二和三中的介绍。
图17是根据本发明可选实施例的信道干净评估检测图样的示意图十五，图17所示为频域上连续的P个PRB资源的示意图。其中，频域上Muting的PRB位置可以是连续的P个PRB资源，或者，除P个PRB资源之外的资源。假定整个带宽为B为5MHz，等同于25个PRB，设备或设备可以在连续的10个PRB Muting资源上执行CCA检测。其中，连续的P个PRB资源可以为从B MHz带宽的最小频域资源索引号开始的连续的P个PRB上执行CCA检测，或者，从B MHz带宽中的特定一个PRB索引号开始的连续P个PRB上执行CCA检测，或者，从B MHz带宽上的最大频域资源索引号开始向频域资源索引号小的方向的连续的P个PRB上执行CCA检测。此外，还可以将B MHz带宽分为两段，Muting上半部分的连续的P个PRB资源或者下半部分的连续的P个PRB资源，在其对应的资源上执行CCA检测。可选地，当系统带宽为10MHz、15MHz、20MHz同样可以按照上述的连续资源图样进行CCA检测。
图18是根据本发明可选实施例的信道干净评估检测图样的示意图十六，图18所示为频域上离散的P个PRB资源的示意图。即设备或设备组在整个带宽上按照频域上离散的P个PRB，本图为P个离散的PRB之间是等间隔的情况。此外，离散的P个PRB之间也可以是不等间隔的，P的个数可以根据系统带宽和每个PRB之间的间隔和每个PRB(块)中包含的连续PRB数目或起始的PRB或PRB块索引号确定，或预定义，或基站通知，或DCI通知。例如，系统带宽为5MHz，等同于25个PRB，且每个PRB之间的间隔为1，则P的个数即为12。也就是说，如果设备或设备组按照频域的起始位置，以及系统带宽和间隔值和每个PRB(块)中包含的连续PRB数目即可获知频域执行CCA的图样位置。例如，频域PRB最小索引号为1，且设备的Muting图样的频域最小索引号2，且间隔为1，则设备按照在PRB#2，PRB#4，PRB#6， PRB#8，PRB#10，PRB#12，PRB#14，PRB#16，PRB#18，PRB#20，PRB#22，PRB#24的频域图样位置上执行CCA检测。此外，PRB级的图样可以是配置为等间隔的相同的PRB组大小的Muting PRB图样，或者，等间隔的不同的PRB组大小的Muting PRB图样，或者，不等间隔的相同的PRB组大小的Muting PRB图样，或者，不等间隔的不同的PRB组大小的Muting PRB图样。
可选实施例五
本可选实施例主要侧重于频域上以Muting特定的RBG或子带组成的频域图样，时域上Muting特定的离散的k个OFDM符号(块)或连续的k个OFDM符号(块)的时域图样，由不同的时频域Muting位置构成不同的CCA检测时频域图样。
本实施例与实施例二到四的不同之处在于，频域上Muting的图样是以RBG或子带为单位。
举例RBG为单位的CCA检测图样。其中：一个RBG的大小与系统带宽有关。此时构成RBG的CCA检测图样的参数至少由下述之一构成：频域上RBG的起始索引号，一个RBG块中包含的RBG数目，每个RBG或者RBG块之间间隔的RBG数目，整个带宽中的RBG总数。
例如：系统带宽为10MHz，等同于50个RB，等同于25个RBG，每个RBG中包含2个RB，每个RBG组中包含连续的2个RBG，每个RBG组之间间隔的RBG数目为2，起始的RBG位置索引为0。其构成的频域Muting CCA图样为RBG#0～RBG#1，RBG#4～RBG#5，RBG#8～RBG#9，RBG#12～RBG#13，RBG#16～RBG#17，RBG#20～RBG#21，RBG#24。其系统带宽为5MHz，15MHz，20MHz的RBG级的Muting CCA频域图样也同理，这里不再复述。另外，每个RBG组之间的间隔也可以是不等间隔的，以及每个RBG组内包含的RBG数目可以相同，也可以不同。
举例子带为单位的CCA检测图样。其构成子带的CCA检测图样的参数至少由下述之一构成：频域上子带的起始索引号，一个子带中包含的RE或RB或RBG数目，每个子带之间子带或RE或RB或RBG数目，整个带宽中的子带或RE或RB或RBG总数。假定子带以5MHz为单位，20MHz系统带宽中可以划分为4个5MHz的子带，传输设备可以按照连续的k个子带上进行Muting或整个带宽出连续k个子带以外资源进行Muting。例如：Muting的子带图样为子带#0，子带间隔为1，总的子带数为4，则频域Muting子带图样为子带#0，子带#2。或者，连续的子带数为2，频域上初始的子带索引为0，则频域Muting子带图样为子带#0～子带1，或者，子带#2～子带#3。
可选实施例六
本可选实施例主要侧重于CCA Muting图样以频域索引号递减或递减顺序构成的不同的CCA检测时频域图样。
图19是根据本发明可选实施例的信道干净评估检测图样的示意图十七，图19中所示的 图样对应上述特殊的图样，如图19所示，假定一个RB中有两个离散的RE块，且第一个RE块的起始位置为RE#3，第二个RE块的频域起始位置为RE#10，每个RE块中包含两个连续的RE。对于时域，每个时隙上有两个连续的OFDM符号，且时域符号起始位置为符号#1。此时，一个Muting RE位于RE#3，时域上位于第一个OFDM符号#1，而第二个Muting RE位于RE#4，时域上位于符号#2。此外，一个Muting RE位于RE#3，时域上位于符号#1，第二个Muting RE也可以位于RE#2，时域上位于符号#2。可选的，第一个Muting RE也可以位于RE#4，时域上位于符号#1，第二个Muting RE也可以位于RE#3，时域上位于符号#2。其中，时域上以子帧为单位的图样，也可以按照时隙为单位的图样。即，时域图样离散，频域图样也离散，且频域每个离散的图样可以呈频域递增或递减态。同样也可以时域图样连续，频域图样离散的图样可呈频域递增或递减态，或者，时域图样离散，频域图样连续的图样可呈频域递增或递减态，或者，时域图样连续，频域图样连续的图样可呈频域递增或递减态。
另一种特殊的CCA Muting图样如图20所示，频域图样随着时域的OFDM符号索引号递减频域频域索引也递减或递减。其中，频域上的Muting图样可以是连续的递增或递减图样或是离散的多个递增或递减的RE或PRB或RBG或子带图样。另一种图样为时域上OFDM符号索引号偏移一个offset1，频域上一个RB中的RE索引号或PRB索引号或RBG索引号或子带索引号偏移一个offset2值，其中，offset1和offset2值可以相同，或者，不同。图20中offset1和offset2值相同，随着时域上每偏移一个OFDM符号，频域上Muting RE位置偏移一个RE值，此时，时域图样是连续的，可持续多个OFDM符号。
此外，时域上的图样可以是离散的，同样，频域上的图样也可以是离散的，或者，时域上离散而频域上图样连续，或者，时域上连续而频域上图样离散。可选地，离散的图样之间可以是等间隔，或，不等间隔，或者，每个离散的图样包含有连续的多个OFDM符号或是RE或RBG。可选地，每个离散的图样中包含的符号数或RE或RBG数不同，或者，可以相同。
可选实施例七
本可选实施例主要阐述设备(如基站或者终端等)或设备组根据哪些特定的参数获得特定的CCA图样，以及基站侧和UE侧如何获取执行CCA检测时所采用的CCA Muting图样。
对于整个载波上没有任何基站或UE开始或正在使用的情况或信道的初始接入时，基站或UE按照自身的Muting图样所对应的频域资源上执行CCA检测，如果在对应的Muting图样位置检测能量小于特定门限A，则认为信道空闲，例如，门限A为-62dBm，或者为在-62dBm基础上加上[0～m]之间的数的绝对值(或加上正或负的[0～m]之间的整数)，其中：m为整数，例如：m取值为-10，门限A可为-72dBm。可选地，m可以为5，10，15，20，30以内的数。
而另一种情况，当基站或是UE按照自身的Muting图样所对应的频域资源上执行CCA检测，如果在对应的Muting图样位置检测能量小于特定门限A，如果在对应的Muting图样位置检测能量小于特定门限A，则认为信道空闲或同运营商的基站或UE预留的图样(或同运营商中的基站或UE正在使用信道)或该载波上没有异系统存在。此外，如果基站或UE在Muting图样补集的图样上检测到的能量大于门限A且小于门限B，则基站或UE认为可以复用，即 认为同运营商的基站或UE正在使用该信道，且满足同运营商中的基站或UE复用的条件(如：复用的设备之间彼此不会造成很大的干扰或影响)，从而检测到可以复用的基站或UE可以复用该信道。此外，基站或UE在整个频域带宽上检测到的能量大于门限A且小于门限B，则同样认为基站或UE可以复用。其中：门限A和门限B均有整数。例如：假定门限A为-62dBm，门限B为-52dBm，如果基站或UE在Muting图样补集的资源上检测到能量为-58dBm，则基站或UE认为可以与已占用信道的同运营商中的基站或UE复用信道。此外，如果在Muting图样对应的资源上检测能量满足门限A，认为信道空闲或者同运营商中的基站或设备正在使用该信道，可选地，如果在Muting图样补集的资源上检测能量依然小于门限A则认为信道本身正处于空闲态。其中，门限A和门限B可以分别为-62dBm加上绝对值[0～m]之间的任意一个数(或加上正或负的[0～m]之间的整数)后获得值，其中：m为整数，例如：m取值为-10，门限A可为-72dBm。可选地，m可以为5，10，15，20，30以内的数。
其次，对于同运营商中的基站或UE采用相同的CCA检测图样，不同运营商之间的CCA检测图样不同。一旦运营商中的基站或UE在对应的Muting图样上检测到信道空闲或者在自身对应的CCA检测图样上检测到信道空闲，则占道后需要在异运营商对应的CCA图样或是Muting的CCA图样上发送占用信息或是数据，或者，在整个带宽上，或者，在自身图样以外的资源上发送信息，防止造成异运营商的设备在对应的Muting资源上检测到信道空闲，认为自身可以使用信道，而造成碰撞。不同运营商之间的图样可以通过实现预定或是后台配置实现。
可选地，CCA检测的时域Muting图样可由下述参数之一获知：时域起始位置，子帧数目或传输burst长度，每个时间段之间的间隔，时间段数目，每个时间段内包含的时间粒子数目，时隙索引号，子帧索引号。其中，时隙索引为0表示子帧的前半时隙，1表示子帧的后半时隙。
而CCA检测的频域Muting图样可由下述参数之一获知：频域起始PRB索引号，每个PRB索引内的RE索引号，连续的RE长度，带宽或可用的PRB或RE数目，每个RE块或PRB块之间的间隔，RE块或PRB块数目，每个RE块或PRB块内包含的连续或离散RE或PRB数目，一个PRB中的RE间偏移量offset，一个PRB中离散的RE索引号或相对位置或相对偏移量和一个PRB中离散的RE或者RE块数目。
可选地，时频域图样可通过上述时域和频域的参数中至少之一获知。
举例说明：
例子1：系统带宽为5MHz(等同于25个PRB，或者，等同于300个子载波)，每个PRB中的RE起始索引号为3(标注：索引号1为RE的最小索引号)，RE的连续长度为1，则通过这三个参数可以获知CCA频域图样为由25个PRB中索引号为3的所有RE组成的图样。而时域上，假定在整个时域上都可以用于CCA检测，则由时域和频域共同构成的图样为：整体来看是由整个带宽上的25个PRB中索引号为3的所有RE和整个时域组成的窄带。
可选地，如果例子1中的RE的连续长度改为3，其他条件不变，则CCA检测的时域和频域图样为：由整个带宽上的25个PRB中索引号为3开始，连续3个RE，即[RE#3,RE#5] 的所有RE和整个时域组成的窄带。
可选地，如果系统带宽为5MHz(等同于25个PRB，或者，等同于300个子载波)，每个PRB中的RE起始索引号为3，RE的连续长度为2，每个RE块之间的间隔为4时，则整个带宽上每个PRB中频域RE图样为[RE#3,RE#4]，[RE#9,RE#10]。时域图样可以是整个时域。而当如果知道每个PRB中离散的RE或者RE块数目和起始RE索引号，RE块中连续的RE数目，可以获知PRB中的RE图样信息。
此外，系统带宽为5MHz(等同于25个PRB，或者，等同于300个子载波)，一个PRB中的RE图样起始索引号为3，连续RE长度为2，以及RE块之间的间隔5个RE，时域上在一个子帧内的每个时隙上从符号索引号#0和符号索引号#1(注：符号索引号最小值为0)，频域上按照RE块中单个RE索引号递减或递增的方向检测，时域索引号递增的方向检测。从而可得一个时频域检测图样如图19所示，其中，时频域均按照索引号递增的方向确定唯一一个图样进行检测。注意，频域上可以按照RE块中单个RE索引号递减或递增的方向检测或Muting对应的RE资源，或者，按照RE块作为一个整体和时域图样共同确定具体的不同时间点或时间段上对应的频域图样。
上述对RE级获取CCA图样的方法，可用于PRB级CCA图样获取，不同之处在于此时连续的是PRB的个数，无RE索引号。
此外，RE索引号可以是每个PRB中的相对索引号，也可以是整个带宽上的RE的索引号。例如：系统带宽为5MHz(等同于300个子载波)，RE的最小索引号1，通过RE的起始索引号，连续RE长度，RE或者RE块之间间隔，或RE或者RE块间的偏移量offset，即可获知一个具体的图样。假定，RE的起始索引号3，连续RE长度2，RE或者RE块之间间隔，或RE或者RE块间的偏移量offset为4，则频域图样为[RE#3,RE#4]，[RE#9,RE#10]，[RE#15,RE#16]，[RE#21,RE#22]，即从整个5MHz带宽上看是等间隔的RE图样。此外，RE块之间的间隔也可以不同。其中：假定每个RE块中含有至少一个RE时，RE块之间的间隔是从一个RE块的结束RE索引号开始到下一个RE块的开始RE索引号之间的RE数目，或者，从一个RE块的开始RE索引号开始到下一个RE块的开始RE索引号之间的RE数目。RE或者RE块间的偏移量offset同理。这个例子采用前者的定义方式。时域图样可以采用上述描述。
对于基站侧，同运营商中的基站间采用相同的CCA检测图样，可以有一个基站从CCA图样集合中选择或确定待用于CCA检测的图样(可以是一个CCA检测图样，或者是多个不同的CCA检测)，通过X2口通知给其他基站，用于CCA检测，或者，用于检测是否可以复用信道时的同运营商复用识别图样。或者，通过预定义确定同一运营商中的基站或UE使用的CCA检测图样，或者，CCA的Muting图样，或者，通过OAM后台配置获取CCA图样所用的参数，从而获知具体CCA检测时所采用的图样。而当基站间采用不同的CCA检测图样，可以通过X2口各个基站间交互各自的CCA图样或Muting图样的构成参数信息，或是直接交互图样，或者，选择一个主基站通过X2口通知邻近基站进行CCA检测是采用的图样参数信息，或者，各个基站间在一个CCA图样集合中选择自身所用的CCA检测图样，然后通过X2口交互其参数信息，其中，可以交互多次，以保证不同基站采用不同的CCA检测图样或Muting 图样。
而对于UE侧，获取CCA图样可以通过基站空口通知，或者，通过DCI指示，或者，通过SIM卡植入CCA图样参数配置，或者，预定义方式获知CCA检测采用的图样。
其中，对于数据传输期的CCA检测图样，或者，Muting的图样可以为RE级图样，或者为PRB级图样。但为了节省数据传输期的资源，如：PDSCH，PUSCH，优选的，在数据传输期采用RE级的Muting图样用于其他复用的设备或是继续执行CCA检测的设备进行信道忙闲检测，而采用PRB级的Muting图样在一定程度上会造成资源浪费，从而降低系统性能。
对于数据传输期，优选的，待复用的基站可以仅执行一个初始CCA检测(或者，LBT Cat4机制中的第一CCA检测)，或者，按照之前冻结的N继续执行LBT过程，此时，时域上优选的配置1个或者2个OFDM符号用于复用的基站进行信道空闲检测，如果初始CCA检测信道空闲，或者冻结的N递减到0，则认为信道可以用。如果在对应的Muting图样上检测到信道空闲，则可选地，检测Muting图样以外的资源上或整个带宽上检测到的能量是否满足CCA检测门限要求，如果满足，则复用的基站可停止LBT Cat4过程，立刻执行一个LBT Cat2过程，为了尽快的接入信道，实现复用。而对于上行，如果UE侧需要发送SRS参考信号，而发送SRS参考信号的时域位置位于一个子帧的最后一个OFDM符号上，此时，如果Muting子帧中的最后一个符号上的整个频域资源，则会一定程度上造成SRS信号无法发送的结果。而对于Muting最后一个OFDM符号的子帧不是SRS参考信号的周期性发送子帧，则Muting图样可用于复用的设备进行CCA检测，而不与SRS参考信号的发送冲突。优选地，Muting SRS频域图样以外的资源作为CCA检测的图样。上述所述方式也可以用于其他两个阶段。
对于信道竞争接入初始阶段，预留信号阶段，数据传输阶段采用的Muting图样可以相同，当也可以对于不同的阶段采用不同的Muting图样，本发明中所述的图样均可以用于上述三个阶段。其中：对于同运营商上中的传输设备采用相同的Muting图样进行信道的竞争接入，而对于不同的运营商中的传输设备采用不同的Muting频域同样。可选地，同运营商中的不同传输设备也可以配置不同的Muting频域图样，用于规避设备之间的干扰。但从同运营商下的传输设备复用的角度，同运营商下的传输设备采用相同的Muting频域图样，在对应的Muting的时频域资源上不发送，或是进行零功率发送，而除Muting资源以外的资源上进行信道占用，用于防止不全部占用信道造成空余的资源图样恰好是异运营中的传输设备或是同运营商中哪些不同Muting图样的传输设备的Muting图样，或是CCA检测图样。
其中，Muting的资源上，传输设备可以先在Muting的图样上进行CCA检测，判断其Muting资源上的能量是否满足预设的门限值，如果满足特定的门限值，则可以认为该信道上没有异系统存在(如：异系统为Wi-Fi时，Wi-Fi如果存在，则是全带宽发送的。如果在LAA Muting的资源上检测到能量，要么是邻带泄漏的能量(泄漏的能量应该比较小，可忽略)，要么就是来自Wi-Fi的能量。)，或是，本系统的图样，或是，认为信道是空闲。可选地，该传输设备再检测Muting图样外的资源上的能量是否满足预设的门限值，或是调整后的门限值，如果满足(能量大于预设门限且小于调整后的门限，或者，能量小于预设门限)，则认为信道可以用，或，可以与同运营商下的传输设备复用。
在信道竞争接入初始阶段，信道的竞争接入过程的时域时长优选配置长一些，有利于传输设备能够完成LBT过程，频域上可以采用PRB，RBG或子带，优选的，采用RE级Muting图样。在预留信号或初始信号阶段，由于预留信号或初始信号的发送时间长度有限，其频域的Muting图样主要用于待复用的传输设备进行图样识别或干扰源识别，从而确定是否可以一起传输。此外，在接入信道初始阶段和预留信号或是初始信道阶段，传输设备都没有完成LBT过程，在数据传输阶段也可以根据配置的时域图样的接入机会来可选进行图样识别或是干扰识别，来确认信道是否可用，从而提高复用的效率。优选的，数据传输期，从结合资源浪费和系统效率以及信道接入机会角度考虑，数据传输期(如：发送PDSCH，或，PUSCH，或DRS时)的时域图样，根据传输burst长度和连续使用的子帧情况或是周期的配置或是非周期的配置离散的多个时间段，优选的，时间段占用1个或是2个OFDM符号，至于时间段的位置则可以是子帧中的前面，中间或是最后。数据传输期(如：发送PDSCH，或，PUSCH，或DRS时)的频域上建议是以RE Muting粒度。
此外，Muting的RE可以配置为占用一个RB的4％，5％，10％，15％，20％，25％，30％，35％，40％，45％，50％，55％，60％，65％，70％，75％，80％，85％，90％，95％，100％或者，Muting的RE占用一个RB中n/12，n为[1,12]的数。同理，Muting的RE可以配置为占用整个带宽的上述所述百分比，或d/w，其中，d为Muting的RE数目，w为带宽对应的RE数目。Muting的RB或RBG可以配置为占用整个带宽的上述所述百分比，公式不变，仅改变了d的含义为Muting的RB或RBG的数目。w为带宽对应的RB或RBG的数目。Muting的子带也可以配置为占用整个带宽的上述百分比。时域的Muting的资源也同理。其中，传输设备可以是基站，也可以是用户设备UE。
可选实施例八
本实施例主要侧重于基站侧发送DRS信号的复用。其中，在系统规划时，同运营商下的基站可以配置相同的Muting图样用于进行CCA检测，也可以不同基站之间配置相互正交的Muting图样。
首先，基站发送DRS信号的DMTC窗大小是40ms或50ms，在对应的DMTC窗内基站有X次发送DRS的机会。X优选的配置为5或6。这X次发送机会利用是连续的Xms时间段内，或是离散的X次机会，每次DRS发送占用1ms的时间。例如：对于连续的5ms(等同于5个子帧)时间内，每次发送DRS信号仅占用一个子帧中的前12个OFDM符号，最后两个子帧用于发送DRS的LBT过程。可选地，最后两个OFDM符号上还可以发送预留信号，或占用信号，且预留信号或是占用信号发送的最大时长为2个OFDM符号的时间。也就是说，基站可以在5个子帧中的最后2个OFDM上执行LBT过程，如果在第一个子帧的前一子帧的最后2个OFDM符号时间内执行LBT过程成功，则，基站可以在第一个子帧上发送DRS信号。反之，如果执行LBT过程失败，则第一个子帧上不能发送DRS信号，基站继续在第一个子帧中的最后2个OFDM符号上执行LBT过程，如果成功，则在第二个子帧上发送DRS。依次类推，如果基站在连续5个子帧上都执行LBT失败，则在这个DMTC内不能发送DRS信号。反之，如果对应这5个子帧的DRS LBT有一次成功，则可以在对应子帧上发送DRS 信号。另外，基站可以在DMTC时间内的X个离散的子帧上的最后2个OFDM符号上执行LBT过程，任意一次执行LBT成功，即可发送DRS信号，占用一个子帧中前12个OFDM符号。
其次，主要描述基站之间发送DRS信号时的复用过程。假定有两个基站A和B，基站A在对应的执行LBT的位置执行发送DRS的LBT过程，其中：执行LBT过程的位置是子帧中的最后两个OFDM符号上执行LBT过程。基站B也在对应发送DRS信号可能子帧或是窗内的对应LBT位置执行发送DRS的LBT过程。其中，基站A和B在执行信道的竞争接入LBT过程时采用的Muting图样以及判定信道是否可用同上述实施例中的规则。其中，基站A和B配置的Muting图样可以相同，也可以为频域上相互正交的图样。这里以基站A和B配置相同的Muting图样为例说明：
假定基站A在信道的竞争接入时，在对应的Muting图样上检测到信道空闲，则基站A认为获取到信道的使用权，从而可以发送DRS。如果基站A成功完成LBT过程的时刻未到发送DRS的子帧边界，则基站A需要发送预留信号或初始信号。其中，基站A发送的预留信号或初始信号是具有一定Muting资源的预留信号，不是全带宽发送的。Muting的资源(RB级或是RE级或RBG级或子带级)用于待复用的基站在该资源上进行CCA检测。可选地，在发送DRS期间(DRS占用12个符号，其中：DRS是由CRS、PSS/SSS和空余符号组成，共占用12个连续符号)，基站A需要同样Muting特定的资源不发送信息，此时，Muting的资源优选的是Muting RE的图样，此Muting图样在发送CRS的符号上是除发送CRS占用的频域资源以外的资源上的Muting图样(Muting的图样不能Muting掉发送CRS的资源)，而Muting图样在发送PSS和SSS的符号上需要在除发送PSS和SSS资源以外的资源上Muting特定的图样用于复用基站做CCA检测和确定是否信道可用。而在发送DRS期间的空余符号上也需要Muting特定的图样。其中本发明提到的图样用于PDSCH期间的频域图样也适用于用于发送DRS。不同之处就在与Muting的图样需要避开发送CRS,PSS/SSS的位置。基站B与基站A配置相同的图样(或者基站A配置的Muting图样，就是基站B的DRS LBT检测图样)，因此基站B在Muting的图样上进行检测，就获取信道是否空闲，从而确定是否可以复用基站A竞争到信道进行DRS发送。其中，基站B可以仅检测对应Muting图样上的资源是否空闲，也可以Muting图样的资源和Muting图样以外的资源综合判断信道是否可以复用。对于前者，如果基站B在对应的Muting图样上检测到能量小于预设的门限值，则认为信道可用，则可以发送自身的DRS。对于后者，如果基站B在对应的Muting资源上检测到的能量小于预设的门限值，则认为无异系统存在，或，是同运营商下的同系统中的设备预留图样，或，认为信道空闲。可选地，基站B检测到上述情况时，可调整CCA检测门限，用于提高同运营商中的同系统的传输设备接入信道的机率。可选地，基站B检测Muting资源外的资源上的能量是否满足预设的CCA门限或是调整后的CCA门限，如果能量小于预设的CCA门限，则认为整个信道是空闲。或者，如果能量大于预设的CCA门限且小于调整后的CCA门限，则认为是同系统的传输设备占用信道或认为信道可用，可以实现复用。能够识别干扰源的基站B可以发送自身的DRS信号。其中：如果基站发送DRS所执行的LBT过程，CCA检测的时长至少是defer period+N*slot的时间，defer period时长可配置为16us+n个slot,slot时长为9us，n为大于等于 1的某个值，N为大于等于0的固定值或随机值。如果检测信道连续空闲的时间为所述CCA检测的时长，则认为信道空闲，可以发送DRS。defer period+N*slot的时间不超过两个OFDM符号的时间，且基站发送DRS的LBT过程的开始时刻是前一个子帧的倒数第二个OFDM符号起始位置，或者是前一个子帧的倒数后两个OFDM符号范围内某个随机时刻，但需要保证自LBT开始时刻加上defer period+N*slot时间不超过前一个子帧的倒数后两个OFDM符号结束时刻。上述处理方式，同样适用于多个基站复用的情况。
而对于不同基站配置不同的Muting图样的情况，其中：不同基站的Muting图样是彼此正交。各个基站在对应的Muting图样上进行CCA检测，如果检测到对应Muting图样上的能量满足预设的门限，则认为信道可用，从而也可以发送各自的DRS。
不同基站或UE配置不同的图样也适用于PDSCH和PUSCH传输。以基站侧为例，也就是不同的基站配置不同的图样，且图样间彼此正交，每个基站在各自的图样上进行CCA检测，如果检测信道空闲，则认为信道可用。如果未到开始传输时刻，则需要发送预留信号或是初始信号，对应的预留信号或是初始信号可以是全带宽发送，也可以是预留出自己图样的资源，或是仅在自己图样的位置上发送预留信号或是初始信号，数据传输发送PDSCH也可以是全带宽发送，或，预留出自己图样的资源，或是仅在自己图样的资源上发送数据。每个设备在自己配置的图样上也可以嵌套使用本发明中的图样。也就是说，本发明也支持图样的嵌套。此上述实施例中所述或本发明中的各种时和/或频域图样可以任意组合。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (40)

  1. 一种信道干净评估检测方法，包括：
    获取信道干净评估CCA检测图样或者静默Muting图样；
    在所述CCA检测图样对应的资源上或者在所述Muting图样对应的资源上对非授权载波信道进行CCA检测。
  2. 根据权利要求1所述的方法，其中，获取所述CCA检测图样或者所述Muting图样包括：
    根据参数获取所述CCA检测图样或者所述Muting图样，其中，所述参数包括以下至少之一：时域起始位置，频域起始位置，时域连续资源的长度，频域连续资源的长度，时域资源之间的间隔，频域资源之间的间隔，时域上子帧数或传输突发burst长度，频域带宽。
  3. 根据权利要求2所述的方法，其中，所述时域起始位置包括以下至少之一：
    时域起始子帧索引号，所述时域起始子帧索引号对应的子帧中的正交频分复用OFDM符号索引号，所述时域起始子帧索引号对应的时隙索引号，所述时域起始子帧索引号对应的所述时隙索引号中的OFDM符号索引号。
  4. 根据权利要求3所述的方法，其中，
    所述时隙索引号为第一预定值，则表示子帧中的前半时隙；所述时隙索引号为第二预定值，则表示子帧中的后半时隙；其中，所述前半时隙和所述后半时隙均包括6或7个OFDM符号，每个时隙中最小的OFDM符号索引号为0，最大的OFDM符号索引号为5或6。
  5. 根据权利要求4所述的方法，其中，所述第一预定值为0，所述第二预定值为1。
  6. 根据权利要求2所述的方法，其中，所述频域起始位置包括以下至少之一：
    频域起始物理资源块PRB的索引号，频域上每个PRB中的起始资源粒子RE的索引号，频域上RE起始位置相对于整个带宽上RE的索引号，频域起始资源块组RBG的索引号，频域起始资源粒子组REG的索引号，频域起始子带索引。
  7. 根据权利要求2所述的方法，其中，所述时域连续资源的长度包括以下至少之一：时域上连续的OFDM符号的数目，时域上连续的子帧数目。
  8. 根据权利要求2所述的方法，其中，所述频域连续资源的长度包括以下至少之一：
    频域上连续的PRB的数目，频域上连续的RE的数目，频域上连续的RBG的数目，频域上连续的REG的数目，频域上连续的子带的数目。
  9. 根据权利要求2所述的方法，其中，所述时域资源之间的间隔包括以下至少之一：
    时域的上一个资源与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一 个资源与下一个资源块之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源之间的OFDM符号数或子帧数或帧数，时域的上一个资源块与下一个资源块之间的OFDM符号数或子帧数或帧数。
  10. 根据权利要求9所述的方法，其中，两个时域资源和/或资源块之间的符号数是指从上一个资源和/或资源块的结束符号位置开始，到下一个资源和/或资源块的开始符号之间的符号数目。
  11. 根据权利要求10所述的方法，其中，每个时域资源和/或资源块之间的间隔相同或不同。
  12. 根据权利要求9所述的方法，其中，每个时域资源块中包括的OFDM符号数目相同或者不同。
  13. 根据权利要求2所述的方法，其中，频域资源之间的间隔包括以下至少之一：
    频域上一个PRB与下一个PRB之间包含的PRB数目；
    频域上一个PRB块与下一个PRB块之间包含的PRB数目；
    频域上一个PRB与下一个PRB块之间包含的PRB数目；
    频域上一个PRB块与下一个PRB之间包含的PRB数目；
    频域上一个RE与下一个RE之间包含的RE数目；
    频域上一个RE块与下一个RE块之间包含的RE数目；
    频域上一个RE与下一个RE块之间包含的RE数目；
    频域上一个RE块与下一个RE之间包含的RE数目；
    频域上一个RBG与下一个RBG之间包含的RBG数目或RB数目；
    频域上一个RBG与下一个RBG块之间包含的RBG数目或RB数目；
    频域上一个RBG块与下一个RBG之间包含的RBG数目或RB数目；
    频域上一个RBG块与下一个RBG块之间包含的RBG数目或RB数目；
    频域上一个子带与下一个子带之间包含的RB数目或子带数目。
  14. 根据权利要求13所述的方法，其中，
    两个频域PRB和/或PRB块之间的PRB数目或间隔是指从上一个PRB和/或PRB块的结束PRB位置开始，到下一个PRB和/或PRB块的开始PRB之间的PRB数目；和/或，
    两个频域RE和/或RE块之间的RE数目或间隔是指从上一个RE和/或RE块的结束RE位置开始，到下一个RE资源块的开始RE之间的RE数目；和/或，
    两个频域RBG和/或RBG块之间的RBG数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开始RBG之间的RBG数目；和/或，
    两个频域RBG和/或RBG块之间的RB数目或间隔是指从上一个RBG和/或RBG块的结束位置开始，到下一个RBG和/或RBG块的开始RBG之间的RB数目。
  15. 根据权利要求14所述的方法，其中，
    频域PRB和/或PRB块之间的PRB数目或间隔相同或不同；和/或，
    频域RE和/或RE块之间的RE数目或间隔相同或不同；和/或，
    频域RBG和/或RBG块之间的间隔相同或不同。
  16. 根据权利要求13所述的方法，其中，
    每个频域RE块中包含的RE数目相同或者不同；和/或，
    每个频域PRB块中包含的PRB数目相同或者不同；和/或，
    每个频域RBG块中包含的RBG/PRB数目相同或者不同；和/或，
    每个子带的带宽相同或者不同。
  17. 根据权利要求2所述的方法，其中，时域上子帧数或传输突发burst长度包括以下至少之一：帧的数目，子帧数目，OFDM符号数目，连续占用的子帧数目，连续占用的OFDM符号数目，执行CCA成功时刻开始连续使用的子帧数目，执行CCA成功时刻开始连续使用的时长长度。
  18. 根据权利要求2所述的方法，其中，所述频域带宽包括以下之一：频域带宽的值，所述频域带宽对应的PRB总数目，所述频域带宽对应的RE总数目，所述频域带宽对应的RBG总数目，所述频域带宽对应的子带总数目。
  19. 根据权利要求18所述的方法，其中，所述频域带宽的值为以下之一：5MHz，10MHz，15MHz，20MHz。
  20. 根据权利要求2所述的方法，其中，由以下频域参数中的至少之一和以下时域参数中的至少之一构成所述CCA检测图样或者所述Muting图样，其中，
    构成频域图样的参数包括下述至少之一：
    频域整个带宽、频域上PRB起始索引号、频域上连续PRB的数目、频域上PRB和/或PRB块之间的间隔、频域上起始PRB中的起始RE索引号、频域上RE起始索引号、频域上连续RE的数目、频域上RE和/或RE块之间的间隔、频域上RBG起始索引号、频域上连续RBG的数目、频域上RBG和/或RBG块之间的间隔、频域上子带起始索引号、子带带宽、频域上子带的间隔；和/或，
    构成时域图样的参数包括下述至少之一：
    整个时域资源、时域上起始帧索引号、时域上起始帧中起始子帧索引号、时域上起始帧中起始子帧中的时隙索引号、时域上连续的OFDM符号长度、时域上连续的子帧长度、时域上连续的帧索引号、时域上OFDM符号和/或OFDM符号块之间的间隔。
  21. 根据权利要求20所述的方法，其中，
    根据所述构成频域图样的参数确定下述至少之一的图样：RE级的频域图样、PRB级的频域图样、RBG级的频域图样、子带级的频域图样；和/或，
    根据所述构成时域图样的参数确定下述至少之一的图样：整个时域；时域上一个连续的资源块的图样；时域上间隔相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔相等，且每个时域资源或资源块的大小不相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小相同的时域图样；时域上间隔不相等，且每个时域资源或资源块的大小不相同的时域图样。
  22. 根据权利要求21所述的方法，其中，所述RE级的频域图样包括以下至少之一：
    每个PRB上RE图样相同，且一个PRB中的一个RE构成的频域图样；
    每个PRB上的RE图样相同，且一个PRB中一个连续的多个RE构成的频域图样；
    每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小相等构成的频域图样；
    每个PRB上的RE图样相同，且一个PRB中间隔相等，每个RE或RE块大小不相等构成的频域图样；
    每个PRB上的RE图样相同，且一个PRB中不等间隔，每个RE或RE块大小相等构成的频域图样；
    每个PRB上的RE图样相同，且一个PRB中不等间隔，每个RE或RE块大小不相等构成的频域图样；
    整个带宽上，间隔相等，每个RE或RE块大小相等构成的频域图样；
    整个带宽上，间隔相等，每个RE或RE块大小不相等构成的频域图样；
    整个带宽上，不等间隔，每个RE或RE块大小相等构成的频域图样；
    整个带宽上，不等间隔，每个RE或RE块大小不相等构成的频域图样。
  23. 根据权利要求21所述的方法，其中，所述PRB级的频域图样包括以下至少之一：
    整个频域上，间隔相等，每个PRB或PRB块大小相等构成的频域图样；
    整个带宽上，间隔相等，每个PRB或PRB块大小不相等构成的频域图样；
    整个带宽上，不等间隔，每个PRB或PRB块大小相等构成的频域图样；
    整个带宽上，不等间隔，每个PRB或PRB块大小不相等构成的频域图样。
  24. 根据权利要求21所述的方法，其中，所述RBG级的频域图样包括以下至少之一：
    整个频域上，间隔相等，每个RBG或RBG块大小相等构成的频域图样；
    整个带宽上，间隔相等，每个RBG或RBG块大小不相等构成的频域图样；
    整个带宽上，不等间隔，每个RBG或RBG块大小相等构成的频域图样；
    整个带宽上，不等间隔，每个RBG或RBG块大小不相等构成的频域图样。
  25. 根据权利要求21所述的方法，其中，所述子带级的频域图样包括以下之一：
    整个频域上，间隔相等，子带带宽相等构成的频域图样；
    整个频域上，间隔相等，子带带宽不相等构成的频域图样；
    整个频域上，不等间隔，子带带宽相等构成的频域图样；
    整个频域上，不等间隔，子带带宽不相等构成的频域图样。
  26. 根据权利要求20至25中任一项所述的方法，其中，根据频域图样和时域图样的组合获得时频域的图样。
  27. 根据权利要求26所述的方法，其中，在所述时频域的图样中，
    随着时间的递增，频域资源图样不变；或者，
    随着时间的递增，频域资源图样呈依次递减或是递增；或者，
    时域上图样连续，频域连续图样呈依次递减或是递增；或者，
    时域上图样连续，频域上离散图样的呈依次递减或是递增；或者，
    时域上图样离散，频域连续图样呈依次递减或是递增；或者，
    时域上图样离散，频域上离散图样的呈依次递减或是递增；或者，
    时域上图样连续呈依次递增，频域上离散图样呈依次递减或是递增。
  28. 根据权利要求1所述的方法，其中，在所述CCA检测图样对应的资源上或者在所述Muting图样对应的资源上对所述非授权载波信道进行所述CCA检测包括：
    不同运营商配置不同的所述CCA检测图样或所述Muting图样；和/或，
    同运营商下同系统中传输设备配置相同的所述CCA检测图样或所述Muting图样；和/或，
    同运营商下同系统中的不同传输设备配置不同的所述CCA检测图样或所述Muting图样。
  29. 根据权利要求28所述的方法，其中，传输设备在配置的所述CCA检测图样或Muting图样对应的资源上进行所述CCA检测包括：
    在对应的所述CCA检测图样或Muting图样对应的资源上检测到的能量小于第一门限值的情况下，确定以下至少之一：所述非授权载波信道为空闲状态，同运营商中的设备已占用所述非授权载波信道，所述非授权载波信道上无异系统存在；和/或，
    在对应的所述CCA检测图样或Muting图样对应的资源上检测到的能量大于所述第一门限值的情况下，确定以下至少之一：所述非授权载波信道上存在异系统，所述非授权载波信道不可用，所述非授权载波信道已被其他系统或异运营商中的设备占用。
  30. 根据权利要求29所述的方法，其中，当CCA检测图样或Muting图样上的能量小于第一门限值时，所述第一门限值能够被调整。
  31. 根据权利要求28至30中任一项所述的方法，其中，同运营商下同系统中传输设备在配置的所述CCA检测图样或Muting图样以外的资源上或整个带宽上进行所述CCA检测包括：
    在对应的所述CCA检测图样或Muting图样的补集对应的资源上或者整个带宽上检测到的能量大于第一门限值，且小于第二门限值的情况下，确定传输设备能够与已占用信道的同运营商中的传输设备进行复用或者传输设备确定非授权载波可用；
    在对应的所述CCA检测图样或Muting图样的补集对应的资源或者整个带宽上检测到的能量小于所述第一门限值的情况下，确定所述非授权载波信道为空闲状态；
    在对应的所述CCA检测图样或Muting图样的补集对应的资源上检测到的能量大于所述第二门限值的情况下，确定以下之一：非授权载波为不可用状态，非授权载波正在被其他传输设备或者异运营商中的设备使用。
  32. 根据权利要求31所述的方法，其中，
    如果传输设备在所述CCA检测图样或Muting图样对应的资源上检测到的能量满足第一门限，而在对应的CCA检测图样或Muting图样补集对应的资源上检测到的能量满足大于第一门限值且小于第二门限值的条件，对于执行有随机回退的LBT过程的传输设备停止当前的LBT过程，根据Muting图样的时域时间长度重新配置随机回退值N，或者，立刻执行LBT Cat2机制，其中，N为大于和/或等于0的整数。
  33. 根据权利要求32所述的方法，其中，
    所述新配置的随机回退值N满足在该Muting图样时域结束的时刻点之前能够递减到0。
  34. 根据权利要求28至33中任一项所述的方法，其中，
    一旦传输设备认为获取到非授权载波的使用权，则在配置的Muting图样以外的所有频域资源上发送信息。
  35. 根据权利要求1所述的方法，其中，还包括：
    同运营商中的基站间采用相同的CCA检测图样。
  36. 根据权利要求35所述的方法，其中，同运营商中的所述基站间采用相同的所述CCA检测图样或所述Muting图样包括以下之一：
    所述运营商的多个基站中的至少一个从CCA图样集合中选择或确定待用于CCA检测的一个或者多个图样，所述多个基站中的至少一个通过X2接口将所述一个或者多个图样或构成图样所采用的参数通知其他基站，其中，所述一个或者多个图样作为CCA检测图样或所述Muting图样；或者，
    通过预定义方式确定同一运营商中的基站采用的相同所述CCA检测图样或者所述Muting图样；或者，
    所述基站通过OAM后台配置获取CCA图样所用的参数，从而获知CCA检测时采用的图样或者所述Muting图样。
  37. 根据权利要求1所述的方法，其中，还包括以下之一：
    传输设备通过所述用户设备连接的基站广播通知获取所述CCA检测图样或者所述Muting图样；
    所述传输设备通过DCI指示获取所述CCA检测图样或者所述Muting图样；
    所述传输设备通过SIM卡植入CCA图样参数配置获取所述CCA检测图样或者所述Muting图样；
    所述传输设备通过预定义方式获取所述CCA检测图样或者所述Muting图样。
  38. 根据权利要求1或2所述的方法，其中，所述CCA检测图样，或者，所述Muting图样，或者，构成所述CCA检测图样或所述Muting图样的参数，通过以下至少之一获取：
    预定义、物理层下行控制信息DCI信令、高层无线资源控制RRC信令、基站和基站之间协商、基站和UE之间约定。
  39. 一种信道干净评估检测装置，其中，包括：
    获取模块，设置为获取信道干净评估CCA检测图样或者静默Muting图样；
    检测模块，设置为在所述CCA检测图样对应的资源上或者在所述Muting图样对应的资源上对非授权载波信道进行CCA检测。
  40. 根据权利要求39所述的装置，其中，所述获取模块进一步设置为：
    根据参数获取所述CCA检测图样或者所述Muting图样，其中，所述参数包括以下至少之一：时域起始位置，频域起始位置，时域连续资源的长度，频域连续资源的长度，时域资源之间的间隔，频域资源之间的间隔，时域上传输子帧数或传输突发burst长度，频域带宽。
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