WO2016161980A1 - 非授权载波的竞争方法及装置 - Google Patents

非授权载波的竞争方法及装置 Download PDF

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Publication number
WO2016161980A1
WO2016161980A1 PCT/CN2016/078903 CN2016078903W WO2016161980A1 WO 2016161980 A1 WO2016161980 A1 WO 2016161980A1 CN 2016078903 W CN2016078903 W CN 2016078903W WO 2016161980 A1 WO2016161980 A1 WO 2016161980A1
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WO
WIPO (PCT)
Prior art keywords
cca
laa device
ecca
value
laa
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PCT/CN2016/078903
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English (en)
French (fr)
Inventor
苟伟
彭佛才
毕峰
赵亚军
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to KR1020177032655A priority Critical patent/KR101938513B1/ko
Priority to JP2017553134A priority patent/JP6587259B2/ja
Priority to EP16776155.0A priority patent/EP3282741B1/en
Priority to US15/564,798 priority patent/US10405350B2/en
Priority to CN201610225022.7A priority patent/CN106060956B/zh
Publication of WO2016161980A1 publication Critical patent/WO2016161980A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for competing for unlicensed carriers.
  • LTE Long Term Evolution
  • some companies have proposed "proposed to study the problem of LTE deployed in unlicensed carriers.” For example, Qualcomm in the United States believes that with the rapid growth of data services, in the near future, authorized carriers will not be able to withstand the huge amount of data brought by rapid business growth.
  • the data volume pressure brought by the service growth can be solved.
  • the unlicensed carrier has the following characteristics: on the one hand, since the unlicensed carrier does not need to be purchased, or the carrier resource is zero cost, the unlicensed carrier is free or low-cost; on the other hand, since the individual and the enterprise can participate in the deployment, the device The quotient equipment is also available, so the admission requirements of the unlicensed carrier are low; in addition, the unlicensed carrier is shared, and some sharing can be considered when multiple different systems are operating at the same time or when different operators of the same system operate. The way resources are used to improve carrier efficiency.
  • LTE deployment has obvious advantages in unlicensed carriers, there are still problems in the process of deployment, such as: multiple wireless access technologies (cross-communication standards, difficult collaboration, and diverse network topologies) ) and many wireless access sites (large number of users, difficult collaboration, centralized management overhead). Due to the large number of wireless access technologies, there will be various wireless systems in the unlicensed carrier, which are difficult to coordinate with each other and have serious interference. Therefore, for LTE deployed in unlicensed carriers, there is still a need to support the regulation of unlicensed carriers. Most countries require the system to support the listening and speaking mechanism when deployed in unlicensed carriers. By listening to the mechanism first, it is possible to avoid interference caused by the simultaneous use of unlicensed carriers between adjacent systems.
  • the competition back-off mechanism is further introduced, that is, the neighboring system sites (generally the neighboring transmission nodes of the same system) can avoid the interference caused by the neighboring transmission nodes of the same system simultaneously using the unlicensed carriers through the contention back-off mechanism.
  • LAA Licensed Assisted Access
  • WLAN Wireless Local Area Network
  • the main purpose of the embodiments of the present invention is to provide a method and an apparatus for competing for an unlicensed carrier, so as to at least solve the problem that the competitive backoff mechanism and the flow in the related art are not suitable for the LAA system.
  • a method for competing for an unlicensed carrier including: authorizing a secondary access LAA device to perform a Clear Channel Assessment (CCA) or an extended clear channel assessment (evolution Clear Channel)
  • CCA Clear Channel Assessment
  • eCCA extended clear channel assessment
  • the LAA device when the evaluation result is idle, the LAA device performs a decrement operation on N, and determines whether the decremented N is greater than zero, wherein the N is a natural number; and the judgment result indicates the decremented N
  • the LAA device will use an unlicensed carrier for data transmission.
  • the method further includes: when the evaluation result is busy, the LAA device repeatedly performs the CCA or the eCCA until the evaluation result is idle.
  • the method further includes: when the judgment result indicates that the decremented N is greater than zero, the LAA device repeatedly performs the CCA or the eCCA until the N after the decrementing operation is not greater than zero.
  • the LAA device performs a decrementing operation on the N, the: the LAA device performs a first specified number of decrements on the local N, wherein the first specified quantity is according to data that needs to be transmitted by the LAA device.
  • the priority is dynamically adjusted.
  • the method further includes: the LAA device acquiring the N.
  • the method further includes: the LAA device acquiring N′, where the N′ is a natural number smaller than a current N of the LAA device. And assigning the value of N' to the N.
  • the method further includes: after the N obtained by the LAA device is the minimum value, or after the value of the NA is decremented by the LAA device, the value is the minimum value,
  • the LAA device continuously performs the minimum number of times of the CCA or the eCCA; when the minimum of the CCA or the eCCA evaluation result is idle, the LAA device uses an unlicensed carrier for data transmission.
  • the method further includes: when the busy time occurs in the CCA of the minimum value or the evaluation result of the eCCA, the LAA device continues to execute the CCA of the minimum value or the eCCA until the most The evaluation results of the CCA or the eCCA of the small value are all idle.
  • a method for competing for an unlicensed carrier comprising: authorizing a secondary access LAA device to perform a clear channel assessment CCA or an extended idle channel assessment eCCA; when the evaluation result is idle, The LAA device determines whether M is greater than zero, wherein the M is a natural number; and when the judgment result indicates that the M is not greater than zero, the LAA device will use an unlicensed carrier for data transmission.
  • the method further includes: when the evaluation result is busy, the LAA device performs repeatedly performing the CCA or the eCCA until the evaluation result is idle.
  • the method further includes: when the judgment result indicates that the M is greater than zero, the LAA device performs a decrement operation on the M, and performs repeating the CCA or the eCCA until after performing a decrement operation M is not greater than zero.
  • the LAA device performing the decrementing operation on the M includes: the LAA device performing a second specified number of decrements on the local M, wherein the second specified quantity is required to be transmitted according to the LAA device
  • the priority of the data is dynamically adjusted.
  • the method further includes: the LAA device acquiring M.
  • the method further includes: the LAA device acquiring M′, where the M′ is a natural number smaller than a current M of the LAA device. And assigning the value of M' to the M.
  • the method further includes: after the N obtained by the LAA device is the minimum value, or after the value of the NA is decremented by the LAA device, the value is the minimum value,
  • the LAA device continuously performs the minimum number of times of the CCA or the eCCA; when the minimum of the CCA or the eCCA evaluation result is idle, the LAA device uses an unlicensed carrier for data transmission.
  • the method further includes: when the busy time occurs in the CCA of the minimum value or the evaluation result of the eCCA, the LAA device continues to execute the CCA of the minimum value or the The eCCA, until the minimum number of times the CCA or the eCCA evaluation result is idle.
  • a method for competing for an unlicensed carrier comprising: authorizing a secondary access LAA device to perform a primary idle channel assessment CCA; and when the evaluation result is busy, the LAA device determines whether L is greater than zero Wherein the L is a natural number; and when the judgment result indicates that the L is not greater than zero, the LAA device uses an unlicensed carrier for data transmission.
  • the method further includes: when the evaluation result is idle, the LAA device uses an unlicensed carrier for data transmission.
  • the method further includes: when the determination result indicates that the L is greater than zero, the LAA device performs a primary CCA in the extended idle channel assessment eCCA.
  • the method further includes: when the evaluation result is idle, the LAA device performs a decrement operation on the L, and continues to determine whether the decremented L is greater than zero; when the evaluation result is busy, the LAA The device continues to perform the initial CCA.
  • the LAA device performs a decrementing operation on the L, where the LAA device performs a third specified number of decrements on the local L, wherein the third specified number is required to be transmitted according to the LAA device.
  • the priority of the data is dynamically adjusted.
  • the method further includes: the LAA device acquiring the L.
  • the method further includes: the LAA device acquiring L′, where the L′ is smaller than the The natural number of the current L of the LAA device, and the value of L' is assigned to the L.
  • the duration of the initial CCA is 34 us or 40 us.
  • a method for competing for an unlicensed carrier including: authorizing a secondary access LAA device to perform initial idle channel assessment CCA; and when the evaluation result is idle, the LAA device subtracting K from Determining a predetermined number of obtained values to determine whether the obtained value is greater than zero, wherein the K is a natural number; and when the judgment result indicates that the obtained value is not greater than zero, the LAA device uses an unlicensed carrier for data transmission .
  • the method further includes: when the determination result indicates that the obtained value is greater than zero, the LAA device continues to perform one CCA in the extended idle channel assessment eCCA.
  • the method further includes: when the evaluation result is busy, the LAA device determines whether the K is greater than zero; and when the determination result indicates that the K is not greater than zero, the LAA device uses an unlicensed carrier. Data transmission; when the judgment result indicates that the K is greater than zero, the LAA device continues to perform one CCA in the eCCA.
  • the method further includes: when the evaluation result is idle, the LAA device performs a decrement operation on the K, and continues to determine whether the decremented K is greater than zero; when the evaluation result is busy, the LAA The device continues to execute the CCA, or the LAA device continues to perform the next CCA in the eCCA.
  • the LAA device performs a decrement operation on the K, including: the LAA device is locally K performs a fourth specified number of decrements, wherein the fourth specified number is dynamically adjusted according to the priority of data that the LAA device needs to transmit.
  • the method further includes: the LAA device acquiring the K.
  • the method further includes: the LAA device acquiring K′, where the K′ is smaller than the The natural number of the current K of the LAA device, and the value of K' is assigned to the K.
  • the duration of the initial CCA is 34 us or 40 us.
  • the predetermined number is a value within a predetermined range centered on a value obtained by dividing the initial CCA duration by a single time of the eCCA duration.
  • a contention device for an unlicensed carrier which is located at an authorized auxiliary access LAA device side, and includes: a first execution module, configured to perform a clear channel assessment CCA or an extended idle channel assessment eCCA
  • the first decrementing module is configured to perform a decrementing operation on N when the evaluation result is idle, and determine whether the decremented N is greater than zero, wherein the N is a natural number; the first transmission module is set to be in the judgment result When the decremented N is not greater than zero, the unlicensed carrier will be used for data transmission.
  • the apparatus further includes: a second execution module, configured to repeatedly execute the CCA or the eCCA when the evaluation result is busy until the evaluation result is idle.
  • a second execution module configured to repeatedly execute the CCA or the eCCA when the evaluation result is busy until the evaluation result is idle.
  • the apparatus further includes: a third execution module, configured to repeatedly execute the CCA or the eCCA when the N after the determination result indicates that the decrement is greater than zero, until the N after the decrementing operation is not greater than zero.
  • a third execution module configured to repeatedly execute the CCA or the eCCA when the N after the determination result indicates that the decrement is greater than zero, until the N after the decrementing operation is not greater than zero.
  • the first decrementing module is further configured to perform a first specified number of decrements on the local N, wherein the first specified quantity is dynamic according to a priority of data that the LAA device needs to transmit. Adjustment.
  • the apparatus before the authorized secondary access LAA device performs the idle channel assessment CCA or the extended idle channel assessment eCCA, the apparatus further includes: a first acquiring module, configured to acquire the N.
  • the device before the LAA device re-executes the CCA or the eCCA, the device further includes: a second acquiring module, configured to acquire N′, where the N′ is smaller than the current LAA device A natural number of N, and the value of N' is assigned to the N.
  • a second acquiring module configured to acquire N′, where the N′ is smaller than the current LAA device A natural number of N, and the value of N' is assigned to the N.
  • the device further includes: a fourth execution module, configured to acquire the N at the LAA device as the minimum value, or After the value of the N is decremented by the LAA device, the value is the minimum value, and the CCA or the eCCA of the minimum value is continuously executed; and the second transmission module is set to be at the minimum value.
  • the evaluation result of the CCA or the eCCA is idle, the unlicensed carrier is used for data transmission.
  • the apparatus further includes: a fifth execution module, configured to continue to execute the minimum CCA when a busy time occurs in the CCA of the minimum value or the evaluation result of the eCCA Or the eCCA, until the minimum number of times the CCA or the eCCA evaluation result is idle.
  • a fifth execution module configured to continue to execute the minimum CCA when a busy time occurs in the CCA of the minimum value or the evaluation result of the eCCA Or the eCCA, until the minimum number of times the CCA or the eCCA evaluation result is idle.
  • a contention device for an unlicensed carrier which is located at an authorized auxiliary access LAA device side, and includes: a sixth execution module, configured to perform a clear channel assessment CCA or an extended idle channel assessment eCCA a first judging module, configured to determine whether M is greater than zero when the evaluation result is idle, wherein the M is a natural number; and the third transmission module is configured to be used when the judgment result indicates that the M is not greater than zero Unlicensed carrier for data transmission.
  • the apparatus further includes: a seventh execution module, configured to perform the CCA or the eCCA repeatedly when the evaluation result is busy until the evaluation result is idle.
  • a seventh execution module configured to perform the CCA or the eCCA repeatedly when the evaluation result is busy until the evaluation result is idle.
  • the apparatus further includes: a second decrementing module, configured to perform a decrement operation on the M when the judgment result indicates that the M is greater than zero, and perform repeating the CCA or the eCCA until decrementing The calculated M is not greater than zero.
  • a second decrementing module configured to perform a decrement operation on the M when the judgment result indicates that the M is greater than zero, and perform repeating the CCA or the eCCA until decrementing The calculated M is not greater than zero.
  • the second decrementing module is further configured to perform, by the local M, a second specified number of decrements, wherein the second specified quantity is dynamically adjusted according to a priority of data that the LAA device needs to transmit. .
  • the apparatus before the authorized auxiliary access LAA device performs the idle channel assessment CCA or the extended idle channel assessment eCCA, the apparatus further includes: a third acquiring module, configured to acquire the M.
  • the device before the LAA device re-executes the CCA or the eCCA, the device further includes: a fourth acquiring module, configured to acquire M′, where the M′ is smaller than the current LAA device A natural number of M, and the value of M' is assigned to the M.
  • a fourth acquiring module configured to acquire M′, where the M′ is smaller than the current LAA device A natural number of M, and the value of M' is assigned to the M.
  • the device further includes: an eighth execution module, configured to: the N obtained by the LAA device is the minimum value, or the value of the LAA device decrementing the N is After the minimum value, the CCA or the eCCA of the minimum number of times is continuously executed; and the fourth transmission module is configured to set, when the evaluation result of the CCA or the eCCA of the minimum value is idle, Use an unlicensed carrier for data transmission.
  • the apparatus further includes: a ninth execution module, configured to continue to execute the minimum number of times of the CCA when a busy time occurs in the CCA of the minimum value or the evaluation result of the eCCA Or the eCCA, The evaluation result of the CCA or the eCCA up to the minimum is idle.
  • a ninth execution module configured to continue to execute the minimum number of times of the CCA when a busy time occurs in the CCA of the minimum value or the evaluation result of the eCCA Or the eCCA, The evaluation result of the CCA or the eCCA up to the minimum is idle.
  • a competing device for an unlicensed carrier which is located at an authorized auxiliary access LAA device side, and includes: a tenth execution module, configured to perform a first idle channel assessment CCA; and a second determining module, When the evaluation result is busy, it is determined whether L is greater than zero, wherein the L is a natural number; and the fifth transmission module is configured to use the unlicensed carrier when the judgment result indicates that the L is not greater than zero Data transfer.
  • the apparatus further includes: a sixth transmission module, configured to use an unlicensed carrier for data transmission when the evaluation result is idle.
  • the apparatus further includes: an eleventh execution module, configured to perform one CCA in the extended idle channel assessment eCCA when the determination result indicates that the L is greater than zero.
  • the device further includes: a third decrementing module, configured to perform a decrement operation on the L when the evaluation result is idle, and continue to determine whether the decremented L is greater than zero; the twelfth execution module, setting In order to continue the execution of the initial CCA when the evaluation result is busy.
  • a third decrementing module configured to perform a decrement operation on the L when the evaluation result is idle, and continue to determine whether the decremented L is greater than zero
  • the twelfth execution module setting In order to continue the execution of the initial CCA when the evaluation result is busy.
  • the third decrementing module is further configured to perform a third specified number of decrements on the local L, wherein the third specified number is dynamic according to a priority of data that the LAA device needs to transmit. Adjustment.
  • the apparatus before the authorized auxiliary access LAA device performs the idle channel assessment CCA, the apparatus further includes: a fifth acquiring module, configured to take the L.
  • the apparatus before the performing, by the LAA device, the primary CCA in the eCCA or continuing to perform the initial CCA, the apparatus further includes: a sixth obtaining module, configured to acquire L′, where the L′ is A natural number less than the current L of the LAA device, and the value of L' is assigned to the L.
  • the duration of the initial CCA is 34 us or 40 us.
  • a device for competing for an unlicensed carrier is provided on the side of the authorized auxiliary access LAA device, including: a thirteenth execution module, configured to perform initial idle channel assessment CCA; and a third determining module, When the evaluation result is idle, the LAA device judges K by subtracting a predetermined number of obtained values, and determines whether the obtained value is greater than zero, wherein the K is a natural number; and the seventh transmission module is set to be at When the judgment result indicates that the obtained value is not greater than zero, the unlicensed carrier is used for data transmission.
  • the apparatus further includes: a fourteenth execution module, configured to continue to perform one CCA in the extended idle channel assessment eCCA when the determination result indicates that the obtained value is greater than zero.
  • the device further includes: a fourth determining module, configured to determine, when the evaluation result is busy, Whether K is greater than zero;
  • the device further includes: an eighth transmission module, configured to use an unlicensed carrier for data transmission when the determination result indicates that the K is not greater than zero; and the fifteenth execution module is configured to indicate in the determination result When K is greater than zero, the execution of one CCA in eCCA is continued.
  • an eighth transmission module configured to use an unlicensed carrier for data transmission when the determination result indicates that the K is not greater than zero
  • the fifteenth execution module is configured to indicate in the determination result When K is greater than zero, the execution of one CCA in eCCA is continued.
  • the device further includes: a fourth decrementing module, configured to perform a decrement operation on the K when the evaluation result is idle, and continue to determine whether the decremented K is greater than zero; the sixteenth execution module, setting In order to continue executing the CCA when the evaluation result is busy, or the LAA device continues to execute the next CCA in the eCCA.
  • a fourth decrementing module configured to perform a decrement operation on the K when the evaluation result is idle, and continue to determine whether the decremented K is greater than zero
  • the sixteenth execution module setting In order to continue executing the CCA when the evaluation result is busy, or the LAA device continues to execute the next CCA in the eCCA.
  • the fourth decrementing module is further configured to perform a fourth specified number of decrements on the local K, wherein the fourth specified number is dynamic according to a priority of data that the LAA device needs to transmit. Adjustment.
  • the apparatus before the authorized auxiliary access LAA device performs the idle channel assessment CCA, the apparatus further includes: a seventh obtaining module, configured to acquire the K.
  • the apparatus before the performing, by the LAA device, the primary CCA in the eCCA or continuing to perform the initial CCA, the apparatus further includes: an eighth obtaining module, configured to acquire K′, where the K′ is A natural number less than the current K of the LAA device, and the value of K' is assigned to the K.
  • the duration of the initial CCA is 34 us or 40 us.
  • the predetermined number is a value within a predetermined range centered on a value obtained by dividing the initial CCA duration by a single time of the eCCA duration.
  • the method further includes: the LAA device randomly generates an N value of the random backoff.
  • the detecting of the CCA includes one of the following: initial CCA detection, extended idle channel assessment eCCA.
  • the apparatus before performing the detecting of the idle channel assessment CCA, the apparatus further includes: a first generating module, configured to randomly generate an N value.
  • the detecting of the CCA includes one of the following: initial CCA detection, extended idle channel assessment eCCA.
  • the detecting that the CCA is continuously performed in the first processing module is one-time CCA detection in the eCCA; the detecting that continues to perform CCA in the second detecting module is initial CCA detection; in the first detecting module
  • the detection of performing CCA is an initial CCA test.
  • the method further includes: the LAA device randomly generates an N value of the random backoff.
  • the detecting of the CCA includes one of the following: initial CCA detection, extended idle channel assessment eCCA.
  • a contention device for an unlicensed carrier which is applied to an authorized auxiliary access LAA device side, and includes: a third detecting module, configured to first perform a clean channel assessment CCA detection, where the channel is After being perceived as idle, the device continues to execute by using a module that triggers the second processing module to perform an operation, and a second determining module that determines the value of N. If N is greater than 0, the value of N is decremented.
  • N N-1, wherein the N is a non-negative integer; a third detecting module, configured to perform detection of the CCA, and triggering the second processing module to perform an operation if the channel is perceived as idle, otherwise triggering The fourth detecting module performs an operation; the second processing module is configured to determine, by the LAA device, an N value, if the N value is not greater than 0, use an unlicensed carrier for data transmission, otherwise used to trigger the second determining module to perform an operation. a fourth detecting module, configured to perform detection of the CCA to sense the channel, and a third triggering module, configured to trigger the second triggering module to perform an operation if the channel is perceived as idle Send the second processing module to perform operations or to trigger the fourth detection module to perform operations.
  • the device before the performing, further includes: a second generating module, configured to randomly generate an N value of the random backoff.
  • a second generating module configured to randomly generate an N value of the random backoff.
  • the detecting of the CCA includes one of the following: initial CCA detection, extended idle channel assessment eCCA.
  • the detecting of the CCA performed in the third detecting module is one CCA detecting in the eCCA; the detecting of the CCA in the fourth detecting module is continued, and the detecting of the CCA is performed in the third detecting module is The same, all are initial CCA tests.
  • a computer storage medium is further provided, and the computer storage medium may store an execution instruction for performing a contention method of the unlicensed carrier in the foregoing embodiment.
  • the authorized auxiliary access LAA device performs the idle channel assessment CCA or the extended idle channel assessment eCCA.
  • the LAA device performs a decrement operation on the N, and determines whether the decremented value N is greater than Zero, and then in the case that the N after the judgment result indicates that the decrement is not greater than zero, the LAA device will use the unlicensed carrier for data transmission, and solve the problem that the competitive back-off mechanism and process of the LAA system are not suitable in the related art, and avoid The interference caused by the simultaneous transmission of unlicensed carriers by neighboring transmission nodes of the same system.
  • FIG. 1 is a flowchart 1 of a method for competing for an unlicensed carrier according to an embodiment of the present invention
  • FIG. 2 is a second flowchart of a method for competing for an unlicensed carrier according to an embodiment of the present invention
  • FIG. 3 is a flowchart 3 of a method for competing for an unlicensed carrier according to an embodiment of the present invention
  • FIG. 4 is a flowchart 4 of a method for competing for an unlicensed carrier according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram 1 of a contention device for an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram 2 of a contention device for an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram 3 of a contention device for an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram 4 of a contention device for an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 9 is a first schematic diagram of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention.
  • FIG. 10 is a second schematic diagram of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention.
  • FIG. 11 is a third schematic diagram of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention.
  • FIG. 12 is a fourth schematic diagram of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention.
  • FIG. 13 is a fifth diagram of a method of competing for an unlicensed carrier in accordance with an alternative embodiment of the present invention.
  • FIG. 1 is a flowchart 1 of a method for competing for an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 1 , the steps of the method include:
  • Step S102 Authorize the auxiliary access LAA device to perform a clear channel assessment CCA or an extended idle channel assessment eCCA;
  • Step S104 When the evaluation result is idle, the LAA device performs a decrement operation on N, and determines whether the decremented value N is greater than zero;
  • N is a natural number
  • Step S106 When the judgment result indicates that the decremented N is not greater than zero, the LAA device will use the unlicensed carrier for data transmission.
  • the authorized auxiliary access LAA device is used to perform the idle channel evaluation CCA or the extended idle channel evaluation eCCA.
  • the LAA device performs a decrement operation on N and judges to perform decrementing. After the value N is greater than zero, the LAA device will use the unlicensed carrier for data transmission when the N indicating that the decrement is not greater than zero, that is, the embodiment provides a LAA device to obtain unauthorized authorization.
  • the execution flow of the unlicensed carrier is preempted, thereby solving the problem that the competition back-off mechanism and the flow of the LAA system are not suitable in the related art, and the interference caused by the adjacent transmission node of the same system simultaneously using the unlicensed carrier is avoided.
  • the LAA device For the result of performing CCA or eCCA in the LAA device in step S102 in this embodiment, in an optional embodiment of the embodiment, that is, when the evaluation result is busy, the LAA device repeatedly performs CCA or eCCA until the evaluation result Is free.
  • the LAA device For the determination result in step S104 in this embodiment, in another optional implementation manner of this embodiment, that is, when the judgment result indicates that the decremented N is greater than zero, the LAA device repeatedly performs CCA or eCCA until proceeding. The N after the decrement operation is not greater than zero.
  • the LAA device needs to perform a decrement operation on the decremented value N, and the value N involved herein is
  • the local value N involved in the embodiment of the present invention is only that the value N at this time is the value N after the decrementing operation; the description is applicable to other similar embodiments of the embodiment of the present invention.
  • the method in this embodiment may further include: LAA.
  • the device obtains the value N.
  • the value N may be randomly generated by itself, or other devices are configured to the device, and the maximum value of N is pre-definable.
  • the CCA or eCCA is re-executed at the LAA device.
  • the method of the present embodiment may further include: the LAA device acquires the value N', wherein N' is a natural number less than the current N of the LAA device, and the value of N' is assigned to the N.
  • the manner of obtaining N′ is the same as the method for obtaining N, that is, the LAA device randomly generates N or N′, or other devices are configured to the LAA device N or N′, and This manner is also applicable to other embodiments of the embodiments of the present invention.
  • the value is still smaller than the current device value, and then the CCA or eCCA is continuously executed for the reacquired value, so that the excessive CCA/eCCA execution process may be avoided to some extent to waste resources.
  • the LAA device does not consider fair competition with the wireless fidelity wifi system.
  • the lower limit of the N value is 0, and when considering the fair competition of the wifi system, the N value
  • the lower limit value is a specified positive integer; the specified positive integer is a value of a predetermined range centered on a value obtained by dividing 34us by a single CCA duration or a single eCCA duration, based on which, another optional implementation in this embodiment
  • the method in this embodiment may further include:
  • Step S11 After the value N obtained by the LAA device is the minimum value, or after the LAA device decrements the value N, the LAA device continuously performs the minimum CCA or eCCA;
  • Step S12 When the evaluation result of the minimum CCA or eCCA is idle, the LAA device uses the unlicensed carrier for data transmission.
  • Step S13 While the busy state occurs in the evaluation result of the minimum CCA or eCCA, the LAA device continues to perform the minimum CCA or eCCA until the evaluation result of the minimum CCA or eCCA is idle.
  • FIG. 2 is a second flowchart of a method for competing for an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step S202 Authorize the auxiliary access LAA device to perform the idle channel assessment CCA or the extended idle channel assessment eCCA;
  • Step S204 When the evaluation result is idle, the LAA device determines whether M is greater than zero;
  • Step S206 When the judgment result indicates that M is not greater than zero, the LAA device will use the unlicensed carrier for data transmission.
  • the authorized auxiliary access LAA device is used to perform the idle channel assessment CCA or the extended idle channel assessment eCCA; when the evaluation result is idle, the LAA device determines whether M is greater than zero, where M is a natural number And further, when the judgment result indicates that M is not greater than zero, the LAA device will use the unauthorized The way the carrier carries out data transmission. That is to say, this embodiment provides an execution process for preempting an unlicensed carrier when the LAA device acquires the unlicensed carrier usage right, thereby solving the problem that the competitive back-off mechanism and the flow of the LAA system are not suitable in the related art, and the same is avoided. The interference caused by the simultaneous transmission nodes of the system using unlicensed carriers at the same time.
  • the LAA device For the result of performing CCA or eCCA on the LAA device in step 202 in this embodiment, in an optional embodiment of the embodiment, that is, when the evaluation result is busy, the LAA device performs repeated execution of CCA or eCCA until The evaluation result is idle.
  • the LAA device performs a decrement operation on M and performs a repeated CCA or eCCA, M is not greater than zero until the decrement operation is performed.
  • the manner in which the LAA device performs the decrementing operation on the M in the embodiment may be implemented in an application scenario of the embodiment, where the LAA device performs a second specified number of decrements on the M.
  • the method in this embodiment may further include: the LAA device Get the value M.
  • the value M may be randomly generated by itself, or other devices are configured to the device, and the maximum value of M is pre-definable.
  • the method in this embodiment may further include: the LAA device acquiring the value M′, where the M′ is smaller than the current LAA device.
  • the natural number of M and assign the value of M' to M.
  • the LAA device does not consider fair competition with the wireless fidelity wifi system.
  • the lower limit of the M value is 0.
  • N The lower limit value of the value is a specified positive integer; the specified positive integer is a value of a predetermined range centered on a value obtained by dividing 34us by a single CCA duration or a single eCCA duration, based on which another optional in this embodiment
  • the method in this embodiment may further include:
  • Step S21 After the value N obtained by the LAA device is the minimum value, or after the LAA device decrements the value N, the LAA device continuously performs the minimum CCA or eCCA;
  • Step S22 When the evaluation result of the minimum CCA or eCCA is idle, the LAA device uses the unlicensed carrier for data transmission.
  • Step S23 While the busy state occurs in the evaluation result of the minimum number of times of CCA or eCCA, the LAA device continues to perform the minimum number of times of CCA or eCCA until the evaluation result of the minimum number of times of CCA or eCCA is idle.
  • FIG. 3 is a third flowchart of a method for competing for an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 3, the method steps of this embodiment include:
  • Step S302 Authorize the auxiliary access LAA device to perform the initial idle channel assessment CCA;
  • Step S304 When the evaluation result is busy, the LAA device determines whether L is greater than zero;
  • L is a natural number
  • Step S306 When the judgment result indicates that L is not greater than zero, the LAA device uses the unlicensed carrier for data transmission.
  • the first auxiliary idle channel assessment CCA is performed by using the authorized auxiliary access LAA device; when the evaluation result is busy, the LAA device determines whether L is greater than zero, where L is a natural number; When L is not greater than zero, the LAA device uses an unlicensed carrier for data transmission.
  • the problem that the competition back-off mechanism and the flow of the LAA system are not suitable in the related art is solved, and the interference caused by the adjacent transmission node of the same system simultaneously using the unlicensed carrier is avoided.
  • the method in this embodiment may further include: when the evaluation result is idle, the LAA device uses the unlicensed carrier for data transmission.
  • the LAA device when the judgment result of the LAA device indicates that L is greater than zero, the LAA device optionally performs the primary CCA in the extended idle channel assessment eCCA.
  • the LAA device performs a decrement operation on L, and continues to determine whether the decremented L is greater than zero; when the evaluation result is busy The LAA device continues to perform the initial CCA.
  • the LAA device in the foregoing embodiment needs to perform the decrementing operation on the decremented value L, which is involved herein.
  • the value L is also the local value L involved in the embodiment of the present invention, except that the value L at this time is the value L after the decrementing operation; the description applies to other similar embodiments of the embodiment of the present invention.
  • the LAA device performs a decrementing operation on the L.
  • the LAA device performs a third specified number of decrements on the L, wherein the third specified number is transmitted according to the LAA device.
  • the method in this embodiment may further include: the LAA device acquiring the value L.
  • the value L may be randomly generated by itself, or other devices are configured to the device, and the maximum value of L may be predefined.
  • the method in this embodiment may further include: the LAA device acquires the value L′, where L′ is less than the LAA device.
  • L′ is less than the LAA device.
  • the natural number of the current L, and the value of L' is assigned to L.
  • duration of the initial CCA involved in this embodiment is 34 us or 40 us.
  • FIG. 4 is a flowchart 4 of a method for competing for an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 4, the steps of the method include:
  • Step S402 Authorize the auxiliary access LAA device to perform the initial idle channel assessment CCA;
  • Step S404 When the evaluation result is idle, the LAA device judges K by subtracting a predetermined number of obtained values, and determines whether the obtained value is greater than zero, where K is a natural number;
  • K is a natural number
  • Step S406 When the judgment result indicates that the obtained value K is not greater than zero, the LAA device uses the unlicensed carrier for data transmission.
  • the authorization auxiliary access LAA device is used to perform the initial idle channel assessment CCA; when the evaluation result is idle, the LAA device determines whether K is greater than zero, wherein K is a natural number; When the result indicates that K is not greater than zero, the LAA device uses the unlicensed carrier for data transmission.
  • the problem that the competition back-off mechanism and the flow of the LAA system are not suitable in the related art is solved, and the interference caused by the adjacent transmission node of the same system simultaneously using the unlicensed carrier is avoided.
  • the method in this embodiment may further include: the LAA device continues to perform the primary CCA in the extended idle channel assessment eCCA, when the result of the determination of the LAA device in the embodiment is greater than zero.
  • the CCA is performed.
  • the LAA device determines whether K is greater than zero; and for the judgment result, when the judgment result indicates that K is not greater than zero, the LAA device uses the unlicensed carrier. Data transmission is performed; when the judgment result indicates that K is greater than zero, the LAA device continues to perform one CCA in the eCCA.
  • the LAA device After continuing to perform a CCA in the eCCA, when the evaluation result is idle, the LAA device performs a decrement operation on K, and continues to determine whether the decremented K is greater than zero; when the evaluation result is busy, the LAA device continues to perform CCA, or, The LAA device continues to execute the next CCA in the eCCA.
  • the method for performing the decrementing operation on the K for the LAA device in the embodiment may be implemented in another optional implementation manner of the embodiment, where the LAA device performs the fourth specified number of K on the K.
  • the method in this embodiment may further include: the LAA device acquires the value K.
  • the value K may be randomly generated by itself, or other devices are configured to the device, and the maximum value of K may be predefined.
  • the method in this embodiment may further include: the LAA device acquires the value K′, where K′ is smaller than the LAA device.
  • K′ is smaller than the LAA device.
  • the natural number of the current K, and the value of K' is assigned to K.
  • the duration of the initial CCA involved in this embodiment is 34 us or 40 us
  • the predetermined number in the embodiment is a value within a predetermined range centered on the initial CCA duration divided by the single eCCA duration.
  • a non-authorized carrier competing device is also provided, which is used to implement the foregoing embodiments and optional implementation manners, and has not been described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the device described in the following embodiments is preferably in software Implementation, but hardware, or a combination of software and hardware, is also possible and conceived.
  • FIG. 5 is a structural block diagram 1 of a contention device for an unlicensed carrier according to an embodiment of the present invention.
  • the device is located on an authorized auxiliary access LAA device side.
  • the device includes: a first execution module 52, configured to execute The idle channel evaluation CCA or the extended idle channel evaluation eCCA;
  • the first decrementing module 54 is coupled to the first execution module 52, and is configured to perform a decrement operation on the N when the evaluation result is idle, and determine whether the decremented value N is The value is greater than zero, where N is a natural number;
  • the first transmission module 56 is coupled to the first decrement module 54 and is configured to use an unlicensed carrier for data transmission when the result of the determination indicates that the decremented N is not greater than zero.
  • the apparatus may further include: a second execution module, coupled to the first execution module 52, configured to repeatedly perform CCA or eCCA when the evaluation result is busy until the evaluation result is idle.
  • a second execution module coupled to the first execution module 52, configured to repeatedly perform CCA or eCCA when the evaluation result is busy until the evaluation result is idle.
  • the apparatus may further include: a third execution module coupled to the first decrementing module 54 and configured to repeatedly perform CCA or eCCA until the N after the determination result indicates that the decrement is greater than zero, until the decrementing operation is performed. N is not greater than zero.
  • the first decrementing module 52 is further configured to perform a first specified number of decrements on the N, wherein the first specified number is dynamically adjusted according to a priority of data that the LAA device needs to transmit.
  • the apparatus may further include: a first acquiring module, coupled to the first execution module 52, configured to acquire the value N.
  • the device before the LAA device re-executes the CCA or the eCCA, the device further includes: a second acquiring module, the first transmitting module 56 is coupled and configured to obtain the value N′, where N′ is a natural number smaller than the current N of the LAA device. And assign the value of N' to N.
  • the LAA device does not consider fair competition with the wireless fidelity wifi system.
  • the lower limit of the N value is 0.
  • N The lower limit value of the value is a specified positive integer; the specified positive integer is a value of a predetermined range centered on a value obtained by dividing 34us by a single CCA duration or a single eCCA duration, based on which another optional in this embodiment
  • the apparatus of this embodiment may further include:
  • the fourth execution module is configured to continuously perform the minimum value of CCA or eCCA after the value N obtained by the LAA device is the minimum value, or the value of the LAA device is reduced after the value N is decremented;
  • the second transmission module is configured to use an unlicensed carrier for data transmission when the minimum CCA or eCCA evaluation result is idle.
  • the fifth execution module is configured to continue to perform the minimum CCA or eCCA when the busy time occurs in the minimum CCA or eCCA evaluation result until the minimum CCA or eCCA evaluation result is idle.
  • FIG. 6 is a structural block diagram 2 of a contention device for an unlicensed carrier according to an embodiment of the present invention.
  • the device is located on an authorized auxiliary access LAA device side.
  • the device includes: a sixth execution module 62, configured to execute The idle channel assessment CCA or the extended idle channel assessment eCCA;
  • the first determining module 64 is coupled to the sixth execution module 62, and is configured to determine whether M is greater than zero when the evaluation result is idle, wherein M is a natural number;
  • the module 66 is coupled to the first determining module 64 and configured to use an unlicensed carrier for data transmission when the determination result indicates that M is not greater than zero.
  • the apparatus further includes: a seventh execution module, coupled to the fourth execution module 62, configured to perform repeated execution of CCA or eCCA when the evaluation result is busy until the evaluation result is idle.
  • a seventh execution module coupled to the fourth execution module 62, configured to perform repeated execution of CCA or eCCA when the evaluation result is busy until the evaluation result is idle.
  • the apparatus further includes: a second decrementing module coupled to the first judging module 64, configured to perform a decrement operation on the M when the judgment result indication M is greater than zero, and perform repeated CCA or eCCA until decrementing The calculated M is not greater than zero.
  • a second decrementing module coupled to the first judging module 64, configured to perform a decrement operation on the M when the judgment result indication M is greater than zero, and perform repeated CCA or eCCA until decrementing The calculated M is not greater than zero.
  • the second decrementing module is further configured to perform a second specified number of decrements, wherein the second specified number is dynamically adjusted according to a priority of data to be transmitted by the LAA device.
  • the apparatus before the authorized auxiliary access LAA device performs the idle channel assessment CCA or the extended idle channel assessment eCCA, the apparatus further includes: a third obtaining module, coupled to the fourth executing module 62, configured to acquire the value M.
  • the device may further include: a fourth acquiring module, the second transmitting module 66 is coupled and configured to obtain the value M′, where the M′ is smaller than the current M of the LAA device. Natural number and assign the value of M' to M.
  • the LAA device does not consider fair competition with the wireless fidelity wifi system.
  • the lower limit of the N value is 0.
  • N The lower limit value of the value is a specified positive integer; the specified positive integer is a value of a predetermined range centered on a value obtained by dividing 34us by a single CCA duration or a single eCCA duration, based on which another optional in this embodiment
  • the apparatus of this embodiment may further include:
  • the eighth execution module is configured to perform the minimum value of CCA or eCCA continuously after the value N obtained by the LAA device is the minimum value, or the value of the LAA device is decremented after the value N is decremented;
  • the fourth transmission module is configured to use an unlicensed carrier for data transmission when the minimum CCA or eCCA evaluation result is idle.
  • the ninth execution module is configured to continue to perform the minimum CCA or eCCA when the busy time occurs in the minimum CCA or eCCA evaluation result until the minimum CCA or eCCA evaluation result is idle.
  • the apparatus includes: a tenth execution module 72 configured to perform a first idle channel assessment CCA; and a second determining module 74 coupled to the tenth execution module 72, configured to be evaluated When the result is busy, it is judged whether L is greater than zero, wherein L is a natural number; the fifth transmission module 76 is coupled with the second judging module 74, and is configured to use the unlicensed carrier when the judgment result indicates that L is not greater than zero. Data transfer.
  • the apparatus may further include: a sixth transmission module coupled to the tenth execution module 72, configured to use an unlicensed carrier for data transmission when the evaluation result is idle.
  • a sixth transmission module coupled to the tenth execution module 72, configured to use an unlicensed carrier for data transmission when the evaluation result is idle.
  • the apparatus may further include: an eleventh execution module, coupled to the second judging module 74, configured to perform one CCA in the extended idle channel assessment eCCA when the judgment result indication L is greater than zero.
  • the apparatus may further include: a third decrementing module coupled to the seventh execution module, configured to perform a decrement operation on the L when the evaluation result is idle, and continue to determine whether the decremented L is greater than zero;
  • the twelve execution module is coupled to the eleventh execution module and is configured to continue to perform the initial CCA when the evaluation result is busy.
  • the third decrementing module is further configured to perform a third specified number of decrements on the L, wherein the third specified number is dynamically adjusted according to a priority of data to be transmitted by the LAA device.
  • the device before the authorized auxiliary access LAA device performs the idle channel assessment CCA, the device further includes: a fifth obtaining module, and the tenth executing module 72 is coupled and configured to take the value L.
  • the device before the LAA device performs one CCA in the eCCA or continues to perform the initial CCA, the device further includes: a sixth obtaining module, where the third transmitting module 76 and the fourth transmitting module are respectively coupled and configured to obtain the value L′, Where L' is a natural number less than the current L of the LAA device, and the value of L' is assigned to L.
  • duration of the initial CCA involved in this embodiment is 34 us or 40 us.
  • FIG. 8 is a structural block diagram of a contention device for an unlicensed carrier according to an embodiment of the present invention.
  • the device is located on the side of the authorized auxiliary access LAA device.
  • the device includes: a thirteenth execution module 82, configured to perform the first time.
  • the third determining module 84 is coupled to the thirteenth execution module 82.
  • the LAA device determines K by subtracting a predetermined number of obtained values, and determines whether the obtained value is greater than zero, wherein The K is a natural number;
  • the seventh transmission module 86 is coupled to the third judging module 84, and is configured to use an unlicensed carrier for data transmission when the judgment result indicates that the obtained value is not greater than zero.
  • the apparatus further includes: a fourteenth execution module, coupled to the third determining module 84, configured to continue to perform the primary CCA in the extended idle channel assessment eCCA when the result of the determination indicates that the obtained value is greater than zero.
  • a fourteenth execution module coupled to the third determining module 84, configured to continue to perform the primary CCA in the extended idle channel assessment eCCA when the result of the determination indicates that the obtained value is greater than zero.
  • the device further includes: a fourth determining module, coupled to the tenth execution module, configured to determine whether K is greater than zero when the evaluation result is busy;
  • the eighth transmission module is coupled to the fourth determining module, and is configured to use an unlicensed carrier for data transmission when the determination result indicates that K is not greater than zero;
  • the fifteenth execution module is coupled to the fourth judging module, and is configured to continue to perform one CCA in the eCCA when the judgment result indication K is greater than zero.
  • the apparatus further includes: a fourth decrementing module coupled to the fifteenth execution module, configured to perform a decrementing operation on K when the evaluation result is idle, and continue to determine whether the decremented K is greater than zero;
  • the sixteen execution module is coupled to the fifteenth execution module, and is configured to continue to perform CCA when the evaluation result is busy, or the LAA device continues to execute the next CCA in the eCCA.
  • the fourth decrementing module is further configured to perform a fourth specified number of decrements on K, wherein the fourth specified number is dynamically adjusted according to a priority of data to be transmitted by the LAA device.
  • the apparatus before the authorized auxiliary access LAA device performs the idle channel assessment CCA, the apparatus further includes: a seventh acquiring module, and a ninth executing module 82, configured to acquire the value K.
  • the device further includes: an eighth acquiring module, respectively coupled to the seventh transmission module 86 and the eighth transmission module, configured to obtain the value K′ Where K' is a natural number less than the current K of the LAA device and the value of K' is assigned to K.
  • the duration of the initial CCA in this embodiment is 34 us or 40 us
  • the predetermined number is a value within a predetermined range centered on the value of the initial CCA duration divided by the single eCCA duration.
  • the optional embodiment provides a competitive fallback mechanism and a corresponding process suitable for the LAA system, and the process may include the following methods:
  • the authorized auxiliary access LAA device obtains a value N.
  • the LAA device performs a Clear Channel Assessment (CCA)/eCCA. If the test result is busy, the LAA device performs the next CCA/eCCA (repeated execution step A); if the test result is idle, the LAA device decrements the N value.
  • CCA Clear Channel Assessment
  • the LAA device gets a value of N.
  • the LAA device performs a CCA/eCCA. If the test result is busy, the LAA device performs the next CCA/eCCA; if the test result is idle, the LAA device determines whether N is greater than zero. If the judgment result is no, the LAA device will transmit using the unlicensed carrier; if the judgment result is yes, the LAA device decrements the N value and returns to the LAA device to perform CCA/eCCA once.
  • a value N is obtained when the LAA device executes CCA/eCCA or before.
  • the LAA device performs the initial CCA. If the CCA test result is idle, the LAA device uses the unlicensed carrier for data transmission. If the CCA test result is busy, it determines whether N is greater than 0. If the judgment result is not greater than 0, the LAA device uses The unlicensed carrier transmits data; if the judgment result is greater than 0, the LAA device enters the eCCA process and performs CCA once. If the detection result is idle, the LAA device decrements the N value and returns the foregoing entry to determine whether N is greater than 0; If the test result is busy, the LAA device returns to the entry to perform the initial CCA.
  • a value N is obtained when the LAA device executes CCA/eCCA or before.
  • the LAA device performs the initial CCA. If the CCA detection result is idle, the LAA device determines whether N-1 is greater than 0. If the determination is no, the LAA device uses the unlicensed carrier for data transmission. Otherwise, the LAA device enters the eCCA process and performs a CCA. If the CCA detection result is busy, it is judged whether N is greater than 0. If the judgment result is not greater than 0, the LAA device transmits data using the unlicensed carrier; if the judgment result is greater than 0, the LAA device enters the eCCA process and performs CCA once. If the detection result is idle, the LAA device decrements the N value and returns to the aforementioned entry to determine whether N is greater than 0; if the detection result is busy, the LAA device returns to the entry of the initial CCA.
  • FIG. 9 is a first schematic diagram of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention.
  • the LAA device performs CCA and/or eCCA according to the following procedure. The process is used to obtain the right to use an unlicensed carrier, where the LAA device may be various devices using an unlicensed carrier, such as a base station, a small cell base station, a homeNB, a UE, and the like.
  • the LAA device obtains a value N, which may be randomly generated by the LAA device, or configured by other devices to the LAA device, where N is a natural number, and the maximum value of N is predefined.
  • N is a natural number, and the maximum value of N is predefined. The specific method of generating the specific N will be given later.
  • the LAA device obtains a value N, including: N is defined as a natural number.
  • N is defined as a natural number.
  • the LAA device randomly generates an N value when each data transmission preempts the unlicensed carrier usage right. When the unlicensed carrier usage right is successfully obtained for data transmission, the N value is regenerated after the non-authorized carrier is used for the next time;
  • the CCA needs to be executed once, and the duration is equal to the DIFS duration (about 34 us).
  • the lower limit of N is set to be close to: the distributed interframe gap (Disturmped) Inter-Frame Spacing is abbreviated as DIFS.
  • the duration is divided by a number of positive integers around the value of the single CCA/eCCA duration (that is, about 3 positive integers around the value, and 3 is an empirical value, not limited to this value). For example, suppose the duration of a single CCA/eCCA is 18us, then 34 divided by 18 is equal to 1.89, then the positive integer around 1.89 includes: 1, 2, 3, 4 (-1, 0 is not a positive integer, so not selected) , generally choose a value that is closest to 1.89, such as 2, or a value close to 1.89, such as 1. For another example, assuming that the duration of a single CCA/eCCA is 9us, then 34 divided by 9 is approximately equal to 3.78, then a positive integer of about 3.78 includes: 1, 2, 3, 4, 5, 6.
  • the lower value of the value of N is generally a given value (for example, to achieve a given value for a convention, it can be obtained from the above method).
  • the upper limit of the N value is generally a predefined value, which can be dynamically changed to adapt to different scenarios. For example, considering that the LAA device data in the LAA system is relatively large, the N value can be defined to be relatively large, so that a larger range Easy to collide less (ie LAA devices produce the same N value). According to the frame structure of LTE and the definition of OFDM symbols, a preferred upper value of N value is given below.
  • the duration of the first 3 or the first 4 OFDM (including CP) in the LTE subframe is divided by the length of the defined CCA (for example, 9us, 4us, 18us, or 20us), and the obtained value is rounded down as the upper limit of the value of N.
  • eCCA is composed of multiple CCA processes. For example, an eCCA process contains N CCAs.
  • the preferred implementation of step A is: if the detection result is busy, the LAA device performs the next CCA/eCCA. Specifically, the LAA device continues the last CCA/eCCA end time, and then continues to the next time.
  • the LAA device does not perform CCA/ during the period or period.
  • the LAA device adopts the next consecutive CCA/eCCA detection mode.
  • N to be other values, then the LAA device can be followed by the next CCA/eCCA detection immediately after N is decremented to 4, or the LAA device performs the next CCA/eCCA adoption of the waiting period for execution.
  • the station can adjust the amount of decrement.
  • the preferred implementation of step B is: if the judgment result is yes, the LAA device repeatedly performs step A. Specifically, the LAA device is allowed to regenerate a new N value before the step A is repeatedly performed. The N value ranges from 0 to the current N value of the LAA device.
  • the LAA device After the LAA device repeatedly performs step A multiple times (the specific number of times needs to be agreed in advance), it is allowed to regenerate a new N value, which ranges from 0 to the current N value of the LAA device. This can avoid excessive waste of CCA/eCCA implementation process to a certain extent.
  • FIG. 10 is a schematic diagram 2 of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention.
  • the first embodiment and the second embodiment are similar, only The order of the determination step and the N-decrement step in which N is greater than 0 is exchanged, so that the details of the implementation of the first embodiment can still be used without conflict.
  • the second embodiment is also an eCCA process that can be executed. Compared with the first embodiment, when the same value is N, the LAA device needs to perform CCA detection once more.
  • the LAA device (including various devices using unlicensed carriers, such as a base station, a small cell base station, a homeNB, a UE) performs a CCA and/or eCCA procedure according to the following procedure to acquire the right to use an unlicensed carrier.
  • the LAA device obtains a value N (which can be randomly generated by itself, or other devices are configured for the device), N is a natural number, and the maximum value of N is predefined.
  • N is a natural number
  • the maximum value of N is predefined. The specific N generation method will be given later. method.
  • the LAA device obtains a value N, including: N is defined as a natural number.
  • N is defined as a natural number.
  • the LAA device randomly generates an N value when each data transmission preempts the unlicensed carrier usage right. When the unlicensed carrier usage right is successfully obtained for data transmission, the N value is regenerated after the non-authorized carrier is used for the next time.
  • the CCA needs to be executed once, and the duration is equal to the DIFS duration (about 34 us).
  • the lower limit of N is set to be close to: DIFS duration divided by A number of positive integers near the value obtained by the time of the secondary CCA/eCCA (that is, about 3 positive integers around the value, and 3 is an empirical value, not limited to this value).
  • the method for determining the lower value of the N value is substantially the same as the first embodiment.
  • the lower limit of the value of N in the second embodiment can be obtained by the method of the first embodiment.
  • the upper limit is also the method of the first embodiment. After the determination, the value obtained by subtracting 1 is used as the upper limit of the N value of the second embodiment.
  • the preferred alternative step 1 is as follows: If the test result is busy, the LAA device performs the next CCA/eCCA. Specifically, the LAA device continues the last CCA/eCCA end time, and then continues to the next CCA/eCCA test; or the LAA device needs to wait for the next time period (or cycle) for performing the CCA/eCCA execution, and then execute the next A CCA/eCCA, the LAA device does not perform CCA/eCCA during periods when the time period or period is not brought.
  • N the LAA device can be followed by the next CCA/eCCA detection immediately after N is decremented to 4, or the LAA device performs the next CCA/eCCA adoption of the waiting period for execution.
  • the preferred implementation of step 1 is: if the judgment result is yes, the LAA device repeatedly performs step 2. Specifically, the LAA device is allowed to regenerate a new N value before the step 2 is repeatedly performed.
  • the N value ranges from 0 to the current N value of the LAA device.
  • the LAA device After the LAA device repeatedly performs step A multiple times (the specific number of times needs to be agreed in advance), it is allowed to regenerate a new N value, which ranges from 0 to the current N value of the LAA device. This can avoid excessive waste of CCA/eCCA implementation process to a certain extent.
  • the preferred alternative step 2 is as follows:
  • the station can adjust the amount of decrement.
  • a method for competing for an unlicensed carrier including: authorizing the auxiliary access LAA device to perform the detection of the clean channel assessment CCA first, and after the channel is perceived as idle, the LAA device continues. Execution is performed as follows:
  • the LAA device performs the detection of the CCA, and if the channel is perceived as idle, S3 is performed, otherwise S4 is performed;
  • the LAA device determines the value of N, if the value of N is not greater than 0, the LAA device uses the unlicensed carrier for data transmission, otherwise executes S1;
  • the LAA device performs detection of the CCA to sense the channel.
  • the LAA device performs S1 or the LAA device performs S3, otherwise the LAA device performs S4.
  • the method of the alternative embodiment further includes: the LAA device randomly generates an N value of the random backoff.
  • the detection of the CCA involved in the alternative embodiment includes one of the following: initial CCA detection, extended idle channel evaluation eCCA. Based on this, the detection of the CCA performed by the LAA device in the S2 is one CCA detection in the eCCA; the detection of the CCA in the S4 in the S4 is the same as the detection in the first implementation of the CCA by the LAA device, and all are the initial CCA detection.
  • N is a non-negative integer
  • a first processing module for performing detection of the CCA, and if the channel is perceived as idle, performing an operation by a transmission mode, otherwise performing an operation by the second detection module; a transmission module for The LAA device determines the value of N. If the value of N is not greater than 0, the LAA device uses the unlicensed carrier for data transmission, otherwise it is executed by the first detection module.
  • the second detection module is used by the LAA device to perform CCA detection to sense the channel.
  • a triggering module configured to trigger the first detecting module to execute or trigger the processing module to execute if the channel is perceived as idle, otherwise trigger the second detecting module to execute
  • the apparatus before performing the detecting of the idle channel assessment CCA, the apparatus further includes: a first generating module, configured to randomly generate an N value.
  • the present optional embodiment further provides a method for competing for an unlicensed carrier, the method comprising: authorizing the auxiliary access LAA device to perform the detection of the clean channel assessment CCA first, and the channel is perceived as idle. After that, the LAA device continues to execute as follows:
  • the LAA device performs the detection of the CCA, and if the channel is perceived as idle, then execute S4, otherwise execute S5;
  • the LAA device determines the N value, if the N value is not greater than 0, the LAA device uses the unlicensed carrier for data transmission, otherwise executes S2;
  • the LAA device performs detection of the CCA to sense the channel.
  • the LAA device performs S2 or the LAA device performs S4, otherwise the LAA device performs S5.
  • the method further includes: the LAA device randomly generates an N value of the random backoff.
  • the detection of the CCA involved in the present SI to S6 may include one of the following: initial CCA detection, extended idle channel evaluation eCCA. Based on this, the detection of the CCA by the LAA device in S3 is one CCA detection in the eCCA; the detection of the CCA by the LAA device in S5 is the same as the detection of the CCA performed by the LAA device first, and all are initial CCA detection.
  • the third trigger module configured to perform a clean channel assessment CCA
  • the device before the second trigger module performs the operation, the device further includes: a second generating module, configured to randomly generate an N value of the random backoff.
  • a second generating module configured to randomly generate an N value of the random backoff.
  • non-negative integer of N involved in this alternative embodiment is an integer greater than or equal to 0.
  • FIG. 11 is a schematic diagram 3 of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention. As shown in FIG. 11, the process of the method includes:
  • the N value is obtained.
  • the definition and the acquisition of the N value are the same as those in the first embodiment.
  • the N value definition in the second embodiment may also be used.
  • the duration of a single CCA in the initial CCA and eCCA process can vary.
  • the decrement of N may adopt the method of Embodiment 1 or Embodiment 2.
  • the lower limit of the value of N is defined as 0, and the upper limit is defined by using the description in Embodiment 1 or Embodiment 2.
  • the LAA device returns to the entrance of the preliminary CCA, specifically the LAA device immediately executes the next initial Step CCA, or wait for the next PCA execution period to arrive before performing the preliminary CCA.
  • the LAA device enters the eCCA process, if the LAA device is in the period of performing CCA/eCCA, the next CCA is continuously executed. If the LAA device enters the non-CCA/eCCA period, CCA may not be implemented.
  • Embodiment 1 or Embodiment 2 may be adopted for the decrement of the N value.
  • Figure 4 is a schematic diagram of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention. As shown in Figure 12, the process of the method includes:
  • the N value is obtained.
  • the definition and the acquisition of the N value are the same as those in the first embodiment.
  • the N value definition in the second embodiment may also be used.
  • the LAA device performs the initial CCA. If the CCA detection result is idle, the LAA device determines whether N-1 is greater than 0. If the determination is no, the LAA device uses the unlicensed carrier for data transmission. Otherwise, the LAA device performs CCA (enter the eCCA process). If the CCA detection result is busy, it is judged whether N is greater than 0.
  • a CCA entering the eCCA process
  • eCCA includes several times of CCA
  • the decrement of N may adopt the method of Embodiment 1 or Embodiment 2.
  • the lower limit of the N value is defined as 0, and the upper limit value is defined by using the description in Embodiment 1 or Embodiment 2.
  • the LAA device returns to perform the initial CCA entry, specifically, the LAA device immediately performs the next preliminary CCA, or waits for the next preliminary CCA execution period to arrive before performing the preliminary CCA.
  • the LAA device enters the eCCA process, if the LAA device is in the period of performing CCA/eCCA, the next CCA is continuously executed. If the LAA device enters the non-CCA/eCCA period, CCA may not be implemented.
  • Embodiment 1 or Embodiment 2 may be adopted for the decrement of the N value.
  • FIG. 13 is a schematic diagram 5 of a method for competing for an unlicensed carrier according to an alternative embodiment of the present invention. As shown in FIG. 13, the process includes:
  • the N value is obtained.
  • the definition and the acquisition of the N value are the same as those in the first embodiment.
  • the N value definition in the second embodiment may also be used.
  • the LAA device performs the initial CCA. If the CCA detection result is idle, the LAA device determines whether N-1 is greater than 0. If the determination is no, the LAA device uses the unlicensed carrier for data transmission. Otherwise, the LAA device performs CCA (enter the eCCA process). If the CCA detection result is busy, it is judged whether N is greater than 0.
  • a CCA entering the eCCA process
  • eCCA includes several times of CCA
  • the decrement of N may adopt the method of Embodiment 1 or Embodiment 2.
  • the lower limit of the N value is defined as 0, and the upper limit value is defined by using the description in Embodiment 1 or Embodiment 2.
  • Embodiment 1 or Embodiment 2 may be adopted for the decrement of the N value.
  • the optional embodiment provides an execution process for preempting an unlicensed carrier when the LAA device acquires the unlicensed carrier usage right.
  • the LAA device especially the LAA device and the wifi device, can be well supported. Fair competition between the two.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed 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 for execution by the computing device and, in some cases, may be performed in a different order than herein.
  • the steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the authorized auxiliary access LAA device performs the idle channel assessment CCA or the extended space.
  • the idle channel evaluates the eCCA.
  • the LAA device performs a decrement operation on N, and determines whether the decremented value N is greater than zero, and then the LAA device will not be greater than zero when the judgment result indicates that the decremented N is not greater than zero.
  • the method of using the unlicensed carrier for data transmission solves the problem that the competition back-off mechanism and the flow of the LAA system are not suitable in the related art, and avoids the interference caused by the adjacent transmission node of the same system simultaneously using the unlicensed carrier.

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Abstract

本发明提供了一种非授权载波的竞争方法及装置,其中,该方法包括:授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA;在评估结果为空闲时,LAA设备对N进行递减运算,并判断进行递减后的N是否大于零,其中,N为自然数;在判断结果指示递减后的N不大于零时,LAA设备将使用非授权载波进行数据传输。通过本发明,解决了相关技术中没有适合LAA***的竞争回退机制和流程的问题。

Description

非授权载波的竞争方法及装置 技术领域
本发明涉及通信领域,具体而言,涉及一种非授权载波的竞争方法及装置。
背景技术
目前,长期演进技术(Long Term Evolution,简称为LTE)的通信网络都是部署在授权载波中运营的,随着LTE的发展,一些公司提出了“建议研究LTE部署在非授权载波中的课题”,例如美国的高通公司认为:随着数据业务的快速增长,在不久的将来,授权载波将不能承受快速业务增长带来的巨大的数据量。考虑通过在非授权载波中部署LTE,以此来分担授权载波中的数据流量,可以解决业务增长带来的数据量压力。同时,非授权载波具有以下特点:一方面,由于非授权载波不需要购买,或者载波资源为零成本,因此非授权载波免费或低费用;另一方面,由于个人、企业都可以参与部署,设备商的设备也可以,因此非授权载波的准入要求低;再者,非授权载波具有共享性,通过多个不同***都运营其中时或者同一***的不同运营商运营其中时,可以考虑一些共享资源的方式,以提高载波效率。
综上所述,虽然LTE部署在非授权载波中具有明显的优势,但是,在部署的过程中,依然存在问题,如:无线接入技术多(跨不同的通信标准,协作难,网络拓扑多样)和无线接入站点多(用户数量大,协作难度大,集中式管理开销大)。由于无线接入技术多,非授权载波中将存在各种各样的无线***,彼此之间难于协调,干扰严重。因此,针对LTE部署在非授权载波中,仍然需要支持非授权载波的管制,多数国家要求***在非授权载波中部署时,需要支持先听后说机制。通过先听后说机制可以避免相邻***之间同时使用非授权载波而为彼此带来的干扰。并且进一步引入竞争回退机制,即邻近的***站点(一般是同一***的邻近传输节点),通过竞争回退机制后可以避免相同***的邻近传输节点同时使用非授权载波时带来的干扰。
目前,LTE正在研究将LTE部署在非授权载波(即授权辅助接入(Licensed Assisted Access,称为LAA)***)中,其中多数公司认为LAA***下行将采用基于竞争回退机制来实现对于非授权载波使用权的抢占。但是目前还有确定适合LAA***,尤其是在考虑与无线局域网(Wireless Local Area Network简称为WLAN)***的竞争机制相对的公平性后,截止目前相关技术中还没有设计出适合LAA***的竞争回退机制和流程。
针对相关技术中没有适合LAA***的竞争回退机制和流程的问题,目前尚未提出 有效的解决方案。
发明内容
本发明实施例的主要目的在于提供一种非授权载波的竞争方法及装置,以至少解决相关技术中没有适合LAA***的竞争回退机制和流程的问题。
根据本发明实施例的一个方面,提供了一种非授权载波的竞争方法,包括:授权辅助接入LAA设备执行空闲信道评估(Clear Channel Assessment,简称为CCA)或扩展空闲信道评估(evolution Clear Channel Assessment简称为eCCA);在评估结果为空闲时,所述LAA设备对N进行递减运算,并判断进行递减后的N是否大于零,其中,所述N为自然数;在判断结果指示递减后的N不大于零时,所述LAA设备将使用非授权载波进行数据传输。
可选地,所述方法还包括:在评估结果为忙时,所述LAA设备重复执行所述CCA或所述eCCA,直至所述评估结果为空闲。
可选地,所述方法还包括:在判断结果指示递减后的N大于零时,所述LAA设备重复执行所述CCA或所述eCCA,直到进行递减运算后的N不大于零。
可选地,所述LAA设备对N进行递减运算包括:所述LAA设备对本地的所述N进行第一指定数量的递减,其中,所述第一指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述方法还包括:所述LAA设备获取所述N。
可选地,在所述LAA设备重复执行所述CCA或所述eCCA之前,所述方法还包括:所述LAA设备获取N’,其中,所述N’为小于所述LAA设备当前N的自然数,并将所述N’的值赋予给所述N。
可选地,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述方法还包括:在所述LAA设备获取的所述N为所述最小值,或所述LAA设备对所述N进行递减运算后的取值为所述最小值后,所述LAA设备连续执行所述最小值次的所述CCA或所述eCCA;在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,所述LAA设备使用非授权载波进行数据传输。
可选地,所述方法还包括:在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,所述LAA设备继续执行所述最小值次的所述CCA或所述eCCA,直到所述最 小值次的所述CCA或所述eCCA的评估结果都为空闲。
根据本发明实施例的另一个方面,提供了一种非授权载波的竞争方法,包括:授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA;在评估结果为空闲时,所述LAA设备判断M是否大于零,其中,所述M为自然数;在判断结果指示所述M不大于零时,所述LAA设备将使用非授权载波进行数据传输。
可选地,所述方法还包括:在评估结果为忙时,所述LAA设备执行重复执行所述CCA或所述eCCA,直至所述评估结果为空闲。
可选地,所述方法还包括:在判断结果指示所述M大于零时,所述LAA设备对所述M进行递减运算,并执行重复所述CCA或所述eCCA,直到进行递减运算后的M不大于零。
可选地,所述LAA设备对所述M进行递减运算包括:所述LAA设备对本地的所述M进行第二指定数量的递减,其中,所述第二指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述方法还包括:所述LAA设备获取M。
可选地,在所述LAA设备重新执行所述CCA或所述eCCA之前,所述方法还包括:所述LAA设备获取M’,其中,所述M’为小于所述LAA设备当前M的自然数,并将所述M’的值赋予给所述M。
可选地,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述方法还包括:在所述LAA设备获取的所述N为所述最小值,或所述LAA设备对所述N进行递减运算后的取值为所述最小值后,所述LAA设备连续执行所述最小值次的所述CCA或所述eCCA;在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,所述LAA设备使用非授权载波进行数据传输。
可选地,所述方法还包括:在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,所述LAA设备继续执行所述最小值次的所述CCA或所述eCCA,直到所述最小值次的所述CCA或所述eCCA的评估结果都为空闲。
根据本发明的再一个方面,提供了一种非授权载波的竞争方法,包括:授权辅助接入LAA设备执行初次空闲信道评估CCA;在评估结果为忙时,所述LAA设备判断L是否大于零,其中,所述L为自然数;在判断结果指示所述L不大于零时,所述LAA设备使用非授权载波进行数据传输。
可选地,所述方法还包括:在评估结果为空闲时,所述LAA设备使用非授权载波进行数据传输。
可选地,所述方法还包括:在判断结果指示所述L大于零时,所述LAA设备执行扩展空闲信道评估eCCA中的一次CCA。
可选地,所述方法还包括:在评估结果为空闲时,所述LAA设备对所述L进行递减运算,并继续判断递减后的L是否大于零;在评估结果为忙时,所述LAA设备继续执行所述初次CCA。
可选地,所述LAA设备对所述L进行递减运算包括:所述LAA设备对本地的所述L进行第三指定数量的递减,其中,所述第三指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述方法还包括:所述LAA设备获取所述L。
可选地,在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述方法还包括:所述LAA设备获取L’,其中,所述L’为小于所述LAA设备当前L的自然数,并将所述L’的值赋予给所述L。
可选地,初次所述CCA的时长为34us或40us。
根据本发明实施例的再一个方面,提供了一种非授权载波的竞争方法,包括:授权辅助接入LAA设备执行初次空闲信道评估CCA;在评估结果为空闲时,所述LAA设备对K减去预定数量的所得值进行判断,判断所述所得值是否大于零,其中,所述K为自然数;在判断结果指示所述所得值不大于零时,所述LAA设备使用非授权载波进行数据传输。
可选地,所述方法还包括:在判断结果指示所述所得值大于零时,所述LAA设备继续执行扩展空闲信道评估eCCA中的一次CCA。
可选地,所述方法还包括:在评估结果为忙时,所述LAA设备判断所述K是否大于零;在判断结果指示所述K不大于零时,所述LAA设备使用非授权载波进行数据传输;在判断结果指示所述K大于零时,所述LAA设备继续执行eCCA中的一次CCA。
可选地,所述方法还包括:在评估结果为闲时,所述LAA设备对所述K进行递减运算,并继续判断递减后的K是否大于零;在评估结果为忙时,所述LAA设备继续执行所述CCA,或,所述LAA设备继续执行所述eCCA中的下一次CCA。
可选地,所述LAA设备对所述K进行递减运算包括:所述LAA设备对本地的所述 K进行第四指定数量的递减,其中,所述第四指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述方法还包括:所述LAA设备获取所述K。
可选地,在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述方法还包括:所述LAA设备获取K’,其中,所述K’为小于所述LAA设备当前K的自然数,并将所述K’的值赋予给所述K。
可选地,初次所述CCA的时长为34us或40us。
可选地,所述预定数量为以初次所述CCA时长除以单次所述eCCA时长所得值为中心的预定范围内的取值。
根据本发明实施例的再一个方面,提供了一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:第一执行模块,设置为执行空闲信道评估CCA或扩展空闲信道评估eCCA;第一递减模块,设置为在评估结果为空闲时,对N进行递减运算,并判断进行递减后的N是否大于零,其中,所述N为自然数;第一传输模块,设置为在判断结果指示递减后的N不大于零时,将使用非授权载波进行数据传输。
可选地,所述装置还包括:第二执行模块,设置为在评估结果为忙时,重复执行所述CCA或所述eCCA,直至所述评估结果为空闲。
可选地,所述装置还包括:第三执行模块,设置为在判断结果指示递减后的N大于零时,重复执行所述CCA或所述eCCA,直到进行递减运算后的N不大于零。
可选地,所述第一递减模块,还设置为对本地的所述N进行第一指定数量的递减,其中,所述第一指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述装置还包括:第一获取模块,设置为获取所述N。
可选地,在所述LAA设备重新执行所述CCA或所述eCCA之前,所述装置还包括:第二获取模块,设置为获取N’,其中,所述N’为小于所述LAA设备当前N的自然数,并将所述N’的值赋予给所述N。
可选地,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述装置还包括:第四执行模块,设置为在所述LAA设备获取的所述N为所述最小值,或 所述LAA设备对所述N进行递减运算后的取值为所述最小值后,连续执行所述最小值次的所述CCA或所述eCCA;第二传输模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,使用非授权载波进行数据传输。
可选地,所述装置还包括:第五执行模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,继续执行所述最小值次的所述CCA或所述eCCA,直到所述最小值次的所述CCA或所述eCCA的评估结果都为空闲。
根据本发明实施例的再一方面,提供了一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:第六执行模块,设置为执行空闲信道评估CCA或扩展空闲信道评估eCCA;第一判断模块,设置为在评估结果为空闲时,判断M是否大于零,其中,所述M为自然数;第三传输模块,设置为在判断结果指示所述M不大于零时,将使用非授权载波进行数据传输。
可选地,所述装置还包括:第七执行模块,设置为在评估结果为忙时,执行重复执行所述CCA或所述eCCA,直至所述评估结果为空闲。
可选地,所述装置还包括:第二递减模块,设置为在判断结果指示所述M大于零时,对所述M进行递减运算,并执行重复所述CCA或所述eCCA,直到进行递减运算后的M不大于零。
可选地,所述第二递减模块,还设置为本地的所述M进行第二指定数量的递减,其中,所述第二指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述装置还包括:第三获取模块,设置为获取所述M。
可选地,在所述LAA设备重新执行所述CCA或所述eCCA之前,所述装置还包括:第四获取模块,设置为获取M’,其中,所述M’为小于所述LAA设备当前M的自然数,并将所述M’的值赋予给所述M。
可选地,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述装置还包括:第八执行模块,设置为在所述LAA设备获取的所述N为所述最小值,或所述LAA设备对所述N进行递减运算后的取值为所述最小值后,连续执行所述最小值次的所述CCA或所述eCCA;第四传输模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,使用非授权载波进行数据传输。
可选地,所述装置还包括:第九执行模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,继续执行所述最小值次的所述CCA或所述eCCA, 直到所述最小值次的所述CCA或所述eCCA的评估结果都为空闲。
根据本发明实施例再一个方面,提供了一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:第十执行模块,设置为执行初次空闲信道评估CCA;第二判断模块,设置为在评估结果为忙时,判断L是否大于零,其中,所述L为自然数;第五传输模块,设置为在判断结果指示所述L不大于零时,所述LAA设备使用非授权载波进行数据传输。
可选地,所述装置还包括:第六传输模块,设置为在评估结果为空闲时,使用非授权载波进行数据传输。
可选地,所述装置还包括:第十一执行模块,设置为在判断结果指示所述L大于零时,执行扩展空闲信道评估eCCA中的一次CCA。
可选地,所述装置还包括:第三递减模块,设置为在评估结果为空闲时,对所述L进行递减运算,并继续判断递减后的L是否大于零;第十二执行模块,设置为在评估结果为忙时,继续执行所述初次CCA。
可选地,所述第三递减模块,还设置为对本地的所述L进行第三指定数量的递减,其中,所述第三指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述装置还包括:第五获取模块,设置为取所述L。
可选地,在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述装置还包括:第六获取模块,设置为获取L’,其中,所述L’为小于所述LAA设备当前L的自然数,并将所述L’的值赋予给所述L。
可选地,初次所述CCA的时长为34us或40us。
根据本发明实施例再一个方面提供了一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:第十三执行模块,设置为执行初次空闲信道评估CCA;第三判断模块,设置为在评估结果为空闲时,所述LAA设备对K减去预定数量的所得值进行判断,判断所述所得值是否大于零,其中,所述K为自然数;第七传输模块,设置为在判断结果指示所述所得值不大于零时,使用非授权载波进行数据传输。
可选地,所述装置还包括:第十四执行模块,设置为在判断结果指示所述所得值大于零时,继续执行扩展空闲信道评估eCCA中的一次CCA。
可选地,所述装置还包括:第四判断模块,设置为在评估结果为忙时,判断所述 K是否大于零;
可选地,所述装置还包括:第八传输模块,设置为在判断结果指示所述K不大于零时,使用非授权载波进行数据传输;第十五执行模块,设置为在判断结果指示所述K大于零时,继续执行eCCA中的一次CCA。
可选地,所述装置还包括:第四递减模块,设置为在评估结果为闲时,对所述K进行递减运算,并继续判断递减后的K是否大于零;第十六执行模块,设置为在评估结果为忙时,继续执行所述CCA,或,所述LAA设备继续执行所述eCCA中的下一次CCA。
可选地,所述第四递减模块,还设置为对本地的所述K进行第四指定数量的递减,其中,所述第四指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述装置还包括:第七获取模块,设置为获取所述K。
可选地,在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述装置还包括:第八获取模块,设置为获取K’,其中,所述K’为小于所述LAA设备当前K的自然数,并将所述K’的值赋予给所述K。
可选地,初次所述CCA的时长为34us或40us。
可选地,所述预定数量为以初次所述CCA时长除以单次所述eCCA时长所得值为中心的预定范围内的取值。
根据本发明的再一个方面,提供了一种非授权载波的竞争方法,包括:授权辅助接入LAA设备首先执行干净信道评估CCA的检测,在信道被感知为空闲后,所述LAA设备继续执行按照下面的方式执行:S1,所述LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,所述N为非负整数;S2,所述LAA设备执行CCA的检测,并且如果信道被感知为空闲,则执行S3,否则执行S4;S3,所述LAA设备判断N值,如果N值不大于0,则所述LAA设备使用非授权载波进行数据传输,否则执行S1;S4,所述LAA设备执行CCA的检测来感知信道;S5,如果信道被感知为空闲,则所述LAA设备执行S1或所述LAA设备执行S3,否则所述LAA设备执行S4。
可选地,在所述S1之前,所述方法还包括:所述LAA设备随机产生随机回退的N值。
可选地,所述CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。
可选地,所述S2中所述LAA设备执行CCA的检测为所述eCCA中的一次CCA检测;所述S4中所述LAA设备继续执行CCA的检测与所述LAA设备首先执行CCA的检测是相同,均为初始CCA检测。
根据本发明的再一个方面,提供了一种非授权载波的竞争装置,应用于授权辅助接入LAA设备侧,包括:第一检测模块,用于首先执行空闲信道评估CCA的检测,在信道被感知为空闲后,所述装置通过以下模块继续执行:第一判断模块,用于所述LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,所述N为非负整数;第一处理模块,用于执行CCA的检测,并且如果信道被感知为空闲,则通过传输模执行操作,否则通过第二检测模块执行操作;所述传输模块,用于所述LAA设备判断N值,如果N值不大于0,则所述LAA设备使用非授权载波进行数据传输,否则通过所述第一检测模块执行;所述第二检测模块,用于所述LAA设备执行CCA的检测来感知信道;第一触发模块,用于如果信道被感知为空闲,则触发所述第一检测模块执行或触发所述处理模块执行,否则触发所述第二检测模块执行。
可选地,在执行空闲信道评估CCA的检测之前,所述装置还包括:第一产生模块,用于随机产生N值。
可选地,所述CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。
可选地,所述第一处理模块中继续执行CCA的检测为所述eCCA中的一次CCA检测;所述第二检测模块中继续执行CCA的检测为初始CCA检测;所述第一检测模块中执行CCA的检测为初始CCA检测。
根据本发明的再一个方面,提供了一种非授权载波的竞争方法,包括:授权辅助接入LAA设备首先执行干净信道评估CCA的检测,在信道被感知为空闲后,所述LAA设备继续执行按照下面的方式执行:S1,所述LAA设备执行S4;S2,所述LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,所述N为非负整数;S3,所述LAA设备执行CCA的检测,并且如果信道被感知为空闲,则执行S4,否则执行S5;S4,所述LAA设备判断N值,如果N值不大于0,则所述LAA设备使用非授权载波进行数据传输,否则执行S2;S5,所述LAA设备执行CCA的检测来感知信道;S6,如果信道被感知为空闲,则所述LAA设备执行S2或所述LAA设备执行S4,否则所述LAA设备执行S5。
可选地,在所述S1之前,所述方法还包括:所述LAA设备随机产生随机回退的N值。
可选地,所述CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估 eCCA。
可选地,所述S3中所述LAA设备执行CCA的检测为所述eCCA中的一次CCA检测;所述S5中所述LAA设备继续执行CCA的检测与所述LAA设备首先执行CCA的检测是相同,均为初始CCA检测。
根据本发明的又一个方面,提供了一种非授权载波的竞争装置,应用于授权辅助接入LAA设备侧,包括:第三检测模块,用于首先执行干净信道评估CCA的检测,在信道被感知为空闲后,所述装置通过以下模块继续执行:第二触发模块,用于触发第二处理模块执行操作;第二判断模块,用于判断N值,如果N大于0,则递减N值,执行N=N-1,其中,所述N为非负整数;第三检测模块,用于执行CCA的检测,并且如果信道被感知为空闲,则触发所述第二处理模块执行操作,否则触发第四检测模块执行操作;所述第二处理模块,用于所述LAA设备判断N值,如果N值不大于0,则使用非授权载波进行数据传输,否则用于触发第二判断模块执行操作;第四检测模块,用于执行CCA的检测来感知信道;第三触发模块,用于如果信道被感知为空闲,则触发第二触发模块执行操作或触发所述第二处理模块执行操作,否则触发所述第四检测模块执行操作。
可选地,在所述第二触发模块执行操作之前,所述装置还包括:第二产生模块,用于随机产生随机回退的N值。
可选地,所述CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。
可选地,所述第三检测模块中执行CCA的检测为所述eCCA中的一次CCA检测;所述第四检测模块中继续执行CCA的检测与所述第三检测模块首先执行CCA的检测是相同,均为初始CCA检测。
在本发明实施例中,还提供了一种计算机存储介质,该计算机存储介质可以存储有执行指令,该执行指令用于执行上述实施例中的非授权载波的竞争方法。
通过本发明实施例,采用授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA,在评估结果为空闲时,LAA设备对N进行递减运算,并判断进行递减后的数值N是否大于零,进而在在判断结果指示递减后的N不大于零时,LAA设备将使用非授权载波进行数据传输的方式,解决了相关技术中没有适合LAA***的竞争回退机制和流程的问题,避免了相同***的邻近传输节点同时使用非授权载波时带来的干扰。
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非授权载波的竞争方法的流程图一;
图2是根据本发明实施例的非授权载波的竞争方法的流程图二;
图3是根据本发明实施例的非授权载波的竞争方法的流程图三;
图4是根据本发明实施例的非授权载波的竞争方法的流程图四;
图5是根据本发明实施例的非授权载波的竞争装置的结构框图一;
图6是根据本发明实施例的非授权载波的竞争装置的结构框图二;
图7是根据本发明实施例的非授权载波的竞争装置的结构框图三;
图8是根据本发明实施例的非授权载波的竞争装置的结构框图四;
图9是根据本发明可选实施例的非授权载波的竞争方法的示意图一;
图10是根据本发明可选实施例的非授权载波的竞争方法的示意图二;
图11是根据本发明可选实施例的非授权载波的竞争方法的示意图三;
图12是根据本发明可选实施例的非授权载波的竞争方法的示意图四;
图13是根据本发明可选实施例的非授权载波的竞争方法的示意图五。
具体实施方式
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。下面将参考附图并结合实施例来详细说明本发明。
本实施例提供了一种非授权载波的竞争方法,图1是根据本发明实施例的非授权载波的竞争方法的流程图一,如图1所示,该方法的步骤包括:
步骤S102:授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA;
步骤S104:在评估结果为空闲时,LAA设备对N进行递减运算,并判断进行递减后的数值N是否大于零;
其中,N为自然数;
步骤S106:在判断结果指示递减后的N不大于零时,LAA设备将使用非授权载波进行数据传输。
通过本实施例的上述步骤S102至步骤S106,采用授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA,在评估结果为空闲时,LAA设备对N进行递减运算,并判断进行递减后的数值N是否大于零,进而在在判断结果指示递减后的N不大于零时,LAA设备将使用非授权载波进行数据传输,也就是说,本实施例提供了一种LAA设备获取非授权载波使用权时抢占非授权载波的执行流程,从而解决了相关技术中没有适合LAA***的竞争回退机制和流程的问题,避免了相同***的邻近传输节点同时使用非授权载波时带来的干扰。
对于本实施例中步骤S102中的LAA设备执行CCA或eCCA的结果,在本实施例的一个可选实施例中,即在评估结果为忙时,该LAA设备重复执行CCA或eCCA,直至评估结果为空闲。
而对于本实施例中的步骤S104中的判断结果,在本实施例的另一个可选实施方式中,即在判断结果指示递减后的N大于零时,LAA设备重复执行CCA或eCCA,直到进行递减运算后的N不大于零。
需要说明的是,对于本发明实施例涉及到的在重复执行执行CCA或eCCA的过程中,在上述实施方式中LAA设备需要对递减后的数值N进行递减运算,这里涉及到的数值N也就是本发明实施例中涉及到的本地数值N,只不过是此时的数值N是进行过递减运算后的数值N;该说明对本发明中的实施例其他类似方式都适用。
此外,对于本实施例步骤S104中涉及到的LAA设备对N进行递减运算的方式,可选地,在本实施例的一个应用场景中,可以通过如下方式来实现:LAA设备对N进行第一指定数量的递减,其中,第一指定数量依据LAA设备需要传输的数据的优先级进行动态调整。也就是说,在本实施例中进行递减运算中的递减数量与LAA设备需要传输的数据的优先级有关,换言之,可以是优先级越高,递减的数量也就越大;例如,通常情况下每一次递减数量为2,即N=N-2。,而当LAA设备计划发送的数据具有很高的优先级时,递减的数量可以比较大,例如N=N-4。这样该LAA设备可以较大概率的获得非授权载波的使用权,从而实现动态的调整。
需要说明的是,在本实施例中的步骤S102之前,即在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,可选地,本实施例的方法还可以包括:LAA设备获取数值N。其中,该数值N可以是自己随机产生的,或者其他设备配置给该设备的,N的最大取值是可以预先定义的。
而对于本实施例中的再一个可选实施方式中,在LAA设备重新执行CCA或eCCA 之前,本实施例的方法还可以包括:LAA设备获取数值N’,其中,N’为小于LAA设备当前N的自然数,并将该N’的值赋予给该N。
需要说明的是,此处获取N’的方式和获取N的方式是一样的,即可以是LAA设备随机产生N或N’,或者,是其他设备配置给该LAA设备N或N’,此外,对于本发明实施例涉及到的其他实施例该方式也是适用的。
通过重新获取新的数值,而该数值还是小于当前设备的数值,进而对重新获取的数值继续执行CCA或eCCA,这样可以一定程度避免过长的CCA/eCCA执行过程导致资源浪费。
上述实施例的方法中,LAA设备没考虑到与无线保真wifi***公平竞争,在不考虑与wifi***的公平进行时,N值下限取值为0,在考虑wifi***公平竞争时,N值的下限值为指定正整数;该指定正整数为以34us除以单次CCA时长或单次eCCA时长所得数值为中心的预定范围的数值,基于此,在本实施例的另一个可选实施例中,本实施例的方法还可以包括:
步骤S11:在LAA设备获取的数值N为最小值,或LAA设备对数值N进行递减运算后的取值为最小值后,LAA设备连续执行最小值次的CCA或eCCA;
步骤S12:在最小值次的CCA或eCCA的评估结果都为空闲时,LAA设备使用非授权载波进行数据传输。
步骤S13:而在最小值次的CCA或eCCA的评估结果中出现忙时,LAA设备继续执行最小值次的CCA或eCCA,直到最小值次的CCA或eCCA的评估结果都为空闲。
图2是根据本发明实施例的非授权载波的竞争方法的流程图二,如图2所示,该方法包括:
步骤S202:授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA;
步骤S204:在评估结果为空闲时,LAA设备判断M是否大于零;
其中,M为自然数;
步骤S206:在判断结果指示M不大于零时,LAA设备将使用非授权载波进行数据传输。
通过本实施例的步骤S202至步骤S206,采用授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA;在评估结果为空闲时,LAA设备判断M是否大于零,其中,M为自然数;进而在判断结果指示M不大于零时,LAA设备将使用非授权 载波进行数据传输的方式。也就是说,本实施例提供了一种LAA设备获取非授权载波使用权时抢占非授权载波的执行流程,从而解决了相关技术中没有适合LAA***的竞争回退机制和流程的问题,避免了相同***的邻近传输节点同时使用非授权载波时带来的干扰。
对于本实施例中的步骤202中的LAA设备执行CCA或eCCA的结果,在本实施例的一个可选实施例中,即在评估结果为忙时,该LAA设备执行重复执行CCA或eCCA,直至评估结果为空闲。
而对于本实施例中的步骤S204中的判断结果,在本实施例的另一个可选实施方式中,即在判断结果指示M大于零时,LAA设备对M进行递减运算,并执行重复CCA或eCCA,直到进行递减运算后的M不大于零。
此外,对于本实施例中上述LAA设备对M进行递减运算的方式,可选地,在本实施例的一个应用场景中,可以通过如下方式来实现:LAA设备对M进行第二指定数量的递减,其中,第二指定数量依据LAA设备需要传输的数据的优先级进行动态调整。也就是说,在本实施例中进行递减运算中的递减数量与LAA设备需要传输的数据的优先级有关,换言之,可以是优先级越高,递减的数量也就越大;例如,通常情况下每一次递减数量为2,即M=M-2。,而当LAA设备计划发送的数据具有很高的优先级时,递减的数量可以比较大,例如M=M-4。这样该LAA设备可以较大概率的获得非授权载波的使用权,从而实现动态的调整。
需要说明的是,在本实施例的步骤S202之前,即在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,可选地,本实施例的方法还可以包括:LAA设备获取数值M。其中,该数值M可以是自己随机产生的,或者其他设备配置给该设备的,M的最大取值是可以预先定义的
而对于本实施例中的再一个可选实施方式中,在LAA设备重新执行CCA或eCCA之前,本实施例的方法还可以包括:LAA设备获取数值M’,其中,M’为小于LAA设备当前M的自然数,并将该M’的值赋予给M。通过重新获取新的数值,而该数值还是小于当前设备的数值的方式,这样可以一定程度避免过长的CCA/eCCA执行过程导致资源浪费。
上述本实施例的方法中,LAA设备没考虑到与无线保真wifi***公平竞争,在不考虑与wifi***的公平进行时,M值下限取值为0,在考虑wifi***公平竞争时,N值的下限值为指定正整数;该指定正整数为以34us除以单次CCA时长或单次eCCA时长所得数值为中心的预定范围的数值,基于此,在本实施例的另一个可选实施例中,本实施例的方法还可以包括:
步骤S21:在LAA设备获取的数值N为最小值,或LAA设备对数值N进行递减运算后的取值为最小值后,LAA设备连续执行最小值次的CCA或eCCA;
步骤S22:在最小值次的CCA或eCCA的评估结果都为空闲时,LAA设备使用非授权载波进行数据传输。
步骤S23:而在最小值次的CCA或eCCA的评估结果中出现忙时,LAA设备继续执行最小值次的CCA或eCCA,直到最小值次的CCA或eCCA的评估结果都为空闲。
图3是根据本发明实施例的非授权载波的竞争方法的流程图三,如图3所示,本实施例的方法步骤包括:
步骤S302:授权辅助接入LAA设备执行初次空闲信道评估CCA;
步骤S304:在评估结果为忙时,LAA设备判断L是否大于零;
其中,L为自然数;
步骤S306:在判断结果指示L不大于零时,LAA设备使用非授权载波进行数据传输。
通过本实施例的步骤S302至步骤S304,采用授权辅助接入LAA设备执行初次空闲信道评估CCA;在评估结果为忙时,LAA设备判断L是否大于零,其中,L为自然数;在判断结果指示L不大于零时,LAA设备使用非授权载波进行数据传输。解决了相关技术中没有适合LAA***的竞争回退机制和流程的问题,避免了相同***的邻近传输节点同时使用非授权载波时带来的干扰。
可选地,本实施例的方法还可以包括:在评估结果为空闲时,LAA设备使用非授权载波进行数据传输。
而在本实施例步骤S304中,LAA设备的判断结果指示L大于零时,可选地,该LAA设备执行扩展空闲信道评估eCCA中的一次CCA。
对于该LAA设备执行扩展空闲信道评估eCCA中的一次CCA的评估结果,在评估结果为空闲时,LAA设备对L进行递减运算,并继续判断递减后的L是否大于零;在评估结果为忙时,LAA设备继续执行初次CCA。
需要说明的是,对于本发明实施例涉及到的在继续执行初次CCA或执行eCCA中的一次CCA的过程中,上述实施方式中LAA设备需要对递减后的数值L进行递减运算,这里涉及到的数值L也就是本发明实施例中涉及到的本地数值L,只不过是此时的数值L是进行过递减运算后的数值L;该说明对本发明中的实施例其他类似方式都适用。
而上述方式涉及到的该LAA设备对L进行递减运算,在本实施例的可选实施方式可以是:LAA设备对L进行第三指定数量的递减,其中,第三指定数量依据LAA设备需要传输的数据的优先级进行动态调整。也就是说,在本实施例中进行递减运算中的递减数量与LAA设备需要传输的数据的优先级有关,换言之,可以是优先级越高,递减的数量也就越大;例如,通常情况下每一次递减数量为2,即L=L-2。,而当LAA设备计划发送的数据具有很高的优先级时,递减的数量可以比较大,例如L=L-4。这样该LAA设备可以较大概率的获得非授权载波的使用权,从而实现动态的调整。
而在本实施例的另一个可选实施方式中,在授权辅助接入LAA设备执行空闲信道评估CCA之前,本实施例的方法还可以包括:LAA设备获取数值L。其中,该数值L可以是自己随机产生的,或者其他设备配置给该设备的,L的最大取值是可以预先定义的。
此外,在本实施例中涉及到的在LAA设备执行eCCA中的一次CCA或继续执行初次CCA之前,本实施例的方法还可以包括:LAA设备获取数值L’,其中,L’为小于LAA设备当前L的自然数,并将该L’的值赋予给L。
通过重新获取新的数值,而该数值还是小于当前设备的数值的方式,这样可以一定程度避免过长的CCA/eCCA执行过程导致资源浪费。
需要说明的是,本实施例中涉及到的初次CCA的时长为34us或40us。
图4是根据本发明实施例的非授权载波的竞争方法的流程图四,如图4所示,该方法的步骤包括:
步骤S402:授权辅助接入LAA设备执行初次空闲信道评估CCA;
步骤S404:在评估结果为空闲时,LAA设备对K减去预定数量的所得值进行判断,判断所得值是否大于零,其中,K为自然数;
其中,K为自然数;
步骤S406:在判断结果指示所得值K不大于零时,LAA设备使用非授权载波进行数据传输。
通过本实施例中的步骤S402至步骤S404,采用授权辅助接入LAA设备执行初次空闲信道评估CCA;在评估结果为空闲时,LAA设备判断K是否大于零,其中,K为自然数;进而在判断结果指示K不大于零时,LAA设备使用非授权载波进行数据传输的方式。解决了相关技术中没有适合LAA***的竞争回退机制和流程的问题,避免了相同***的邻近传输节点同时使用非授权载波时带来的干扰。
对于本实施例中的LAA设备的判断结果指示进行递减运算后的K大于零时,可选地,本实施例的方法还可以包括:LAA设备继续执行扩展空闲信道评估eCCA中的一次CCA。
而对于本实施例步骤S402执行CCA,可选地,在评估结果为忙时,LAA设备判断K是否大于零;而对于判断结果,在判断结果指示K不大于零时,LAA设备使用非授权载波进行数据传输;在判断结果指示K大于零时,LAA设备继续执行eCCA中的一次CCA。
在继续执行eCCA中的一次CCA,在评估结果为闲时,LAA设备对K进行递减运算,并继续判断递减后的K是否大于零;在评估结果为忙时,LAA设备继续执行CCA,或,LAA设备继续执行eCCA中的下一次CCA。
而对于本实施例中涉及到的该LAA设备对K进行递减运算的方式,在本实施例的另一个可选实施方式中,可以通过如下方式来实现:LAA设备对K进行第四指定数量的递减,其中,第四指定数量依据LAA设备需要传输的数据的优先级进行动态调整。也就是说,在本实施例中进行递减运算中的递减数量与LAA设备需要传输的数据的优先级有关,换言之,可以是优先级越高,递减的数量也就越大;例如,通常情况下每一次递减数量为2,即K=K-2。,而当LAA设备计划发送的数据具有很高的优先级时,递减的数量可以比较大,例如K=K-4。这样该LAA设备可以较大概率的获得非授权载波的使用权,从而实现动态的调整。
而对于本实施例的在步骤S402之前,即在授权辅助接入LAA设备执行空闲信道评估CCA之前,本实施例的方法还可以包括:LAA设备获取数值K。其中,该数值K可以是自己随机产生的,或者其他设备配置给该设备的,K的最大取值是可以预先定义的。
此外,在本实施例中涉及到的在LAA设备执行eCCA中的一次CCA或继续执行初次CCA之前,本实施例的方法还可以包括:LAA设备获取数值K’,其中,K’为小于LAA设备当前K的自然数,并将该K’的值赋予给K。
通过重新获取新的数值,而该数值还是小于当前设备的数值的方式,这样可以一定程度避免过长的CCA/eCCA执行过程导致资源浪费。
可选地,本实施例中涉及到的初次CCA的时长为34us或40us,以及本实施例中的预定数量为以初次CCA时长除以单次eCCA时长所得值为中心的预定范围内的取值。
在本实施例中还提供了一种非授权载波的竞争装置,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5是根据本发明实施例的非授权载波的竞争装置的结构框图一,该装置位于授权辅助接入LAA设备侧,如图5所示,该装置包括:第一执行模块52,设置为执行空闲信道评估CCA或扩展空闲信道评估eCCA;第一递减模块54,与第一执行模块52耦合连接,设置为在评估结果为空闲时,对N进行递减运算,并判断进行递减后的数值N是否大于零,其中,N为自然数;第一传输模块56,与第一递减模块54耦合连接,设置为在判断结果指示递减后的N不大于零时,将使用非授权载波进行数据传输。
可选地,该装置还可以包括:第二执行模块,与第一执行模块52耦合连接,设置为在评估结果为忙时,重复执行CCA或eCCA,直至评估结果为空闲。
可选地,该装置还可以包括:第三执行模块,与第一递减模块54耦合连接,设置为在判断结果指示递减后的N大于零时,重复执行CCA或eCCA,直到进行递减运算后的N不大于零。
可选地,该第一递减模块52,还设置为对N进行第一指定数量的递减,其中,第一指定数量依据LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,该装置还可以包括:第一获取模块,与第一执行模块52耦合连接,设置为获取数值N。
可选地,在LAA设备重新执行CCA或eCCA之前,装置还包括:第二获取模块,第一传输模块56耦合连接,设置为获取数值N’,其中,N’为小于LAA设备当前N的自然数,并将该N’的值赋予给N。
上述本实施例的方法中,LAA设备没考虑到与无线保真wifi***公平竞争,在不考虑与wifi***的公平进行时,N值下限取值为0,在考虑wifi***公平竞争时,N值的下限值为指定正整数;该指定正整数为以34us除以单次CCA时长或单次eCCA时长所得数值为中心的预定范围的数值,基于此,在本实施例的另一个可选实施例中,可选地,本实施例的装置还可以包括:
第四执行模块,设置为在LAA设备获取的数值N为最小值,或LAA设备对数值N进行递减运算后的取值为最小值后,连续执行最小值次的CCA或eCCA;
第二传输模块,设置为在最小值次的CCA或eCCA的评估结果都为空闲时,使用非授权载波进行数据传输。
第五执行模块,设置为在最小值次的CCA或eCCA的评估结果中出现忙时,继续执行最小值次的CCA或eCCA,直到最小值次的CCA或eCCA的评估结果都为空闲。
图6是根据本发明实施例的非授权载波的竞争装置的结构框图二,该装置位于授权辅助接入LAA设备侧,如图6所示,该装置包括:第六执行模块62,设置为执行空闲信道评估CCA或扩展空闲信道评估eCCA;第一判断模块64,与第六执行模块62耦合连接,设置为在评估结果为空闲时,判断M是否大于零,其中,M为自然数;第三传输模块66,与第一判断模块64耦合连接,设置为在判断结果指示M不大于零时,将使用非授权载波进行数据传输。
可选地,该装置还包括:第七执行模块,与第四执行模块62耦合连接,设置为在评估结果为忙时,执行重复执行CCA或eCCA,直至评估结果为空闲。
可选地,该装置还包括:第二递减模块,与第一判断模块64耦合连接,设置为在判断结果指示M大于零时,对M进行递减运算,并执行重复CCA或eCCA,直到进行递减运算后的M不大于零。
可选地,该第二递减模块,还设置为M进行第二指定数量的递减,其中,第二指定数量依据LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,该装置还包括:第三获取模块,与第四执行模块62耦合连接,设置为获取数值M。
可选地,在LAA设备重新执行CCA或eCCA之前,该装置还可以包括:第四获取模块,第二传输模块66耦合连接,设置为获取数值M’,其中,M’为小于LAA设备当前M的自然数,并将该M’的值赋予给M。
上述本实施例的方法中,LAA设备没考虑到与无线保真wifi***公平竞争,在不考虑与wifi***的公平进行时,N值下限取值为0,在考虑wifi***公平竞争时,N值的下限值为指定正整数;该指定正整数为以34us除以单次CCA时长或单次eCCA时长所得数值为中心的预定范围的数值,基于此,在本实施例的另一个可选实施例中,可选地,本实施例的装置还可以包括:
第八执行模块,设置为在LAA设备获取的数值N为最小值,或LAA设备对数值N进行递减运算后的取值为最小值后,连续执行最小值次的CCA或eCCA;
第四传输模块,设置为在最小值次的CCA或eCCA的评估结果都为空闲时,使用非授权载波进行数据传输。
第九执行模块,设置为在最小值次的CCA或eCCA的评估结果中出现忙时,继续执行最小值次的CCA或eCCA,直到最小值次的CCA或eCCA的评估结果都为空闲。
图7是根据本发明实施例的非授权载波的竞争装置的结构框图三,位于授权辅助 接入LAA设备侧,如图7所示,该装置包括:第十执行模块72,设置为执行初次空闲信道评估CCA;第二判断模块74,与第十执行模块72耦合连接,设置为在评估结果为忙时,判断L是否大于零,其中,L为自然数;第五传输模块76,与第二判断模块74耦合连接,设置为在判断结果指示L不大于零时,LAA设备使用非授权载波进行数据传输。
可选地,该装置还可以包括:第六传输模块,与第十执行模块72耦合连接,设置为在评估结果为空闲时,使用非授权载波进行数据传输。
可选地,该装置还可以包括:第十一执行模块,与第二判断模块74耦合连接,设置为在判断结果指示L大于零时,执行扩展空闲信道评估eCCA中的一次CCA。
可选地,该装置还可以包括:第三递减模块,与第七执行模块耦合连接,设置为在评估结果为空闲时,对L进行递减运算,并继续判断递减后的L是否大于零;第十二执行模块,与第十一执行模块耦合连接,设置为在评估结果为忙时,继续执行初次CCA。
可选地,该第三递减模块,还设置为对L进行第三指定数量的递减,其中,第三指定数量依据LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA之前,装置还包括:第五获取模块,第十执行模块72耦合连接,设置为取数值L。
可选地,在LAA设备执行eCCA中的一次CCA或继续执行初次CCA之前,装置还包括:第六获取模块,第三传输模块76和第四传输模块分别耦合连接,设置为获取数值L’,其中,L’为小于LAA设备当前L的自然数,并将L’的值赋予给L。
需要说明的是,本实施例中涉及到的初次CCA的时长为34us或40us。
图8是根据本发明实施例的非授权载波的竞争装置的结构框图四,位于授权辅助接入LAA设备侧,如图8所示,该装置包括:第十三执行模块82,设置为执行初次空闲信道评估CCA;第三判断模块84,与第十三执行模块82耦合连接,在评估结果为空闲时,LAA设备对K减去预定数量的所得值进行判断,判断所得值是否大于零,其中,K为自然数;第七传输模块86,与第三判断模块84耦合连接,设置为在判断结果指示所得值不大于零时,使用非授权载波进行数据传输。
可选地,该装置还包括:第十四执行模块,与第三判断模块84耦合连接,设置为在判断结果指示所得值大于零时,继续执行扩展空闲信道评估eCCA中的一次CCA。
可选地,装置还包括:第四判断模块,与第十执行模块耦合连接,设置为在评估结果为忙时,判断K是否大于零;
第八传输模块,与第四判断模块耦合连接,设置为在判断结果指示K不大于零时,使用非授权载波进行数据传输;
第十五执行模块,与第四判断模块耦合连接,设置为在判断结果指示K大于零时,继续执行eCCA中的一次CCA。
可选地,该装置还包括:第四递减模块,与第十五执行模块耦合连接,设置为在评估结果为闲时,对K进行递减运算,并继续判断递减后的K是否大于零;第十六执行模块,与第十五执行模块耦合连接,设置为在评估结果为忙时,继续执行CCA,或,LAA设备继续执行eCCA中的下一次CCA。
可选地,第四递减模块,还设置为对K进行第四指定数量的递减,其中,第四指定数量依据LAA设备需要传输的数据的优先级进行动态调整。
可选地,在授权辅助接入LAA设备执行空闲信道评估CCA之前,装置还包括:第七获取模块,与第九执行模块82,设置为获取数值K。
可选地,在LAA设备执行eCCA中的一次CCA或继续执行初次CCA之后,装置还包括:第八获取模块,与第七传输模块86和第八传输模块分别耦合连接,设置为获取数值K’,其中,K’为小于LAA设备当前K的自然数,并将K’的值赋予给K。
需要说明的是,本实施例涉及到的初次CCA的时长为34us或40us,以及该预定数量为以初次CCA时长除以单次eCCA时长所得值为中心的预定范围内的取值。
下面结合本发明实施例的可选实施例进行详细说明;
本可选实施例提供了一种适合LAA***的竞争回退机制和对应的流程,该流程可以包括如下几种方式:
方式1:
授权辅助接入LAA设备获取一个数值N。
LAA设备执行一次空闲信道评估(Clear Channel Assessment简称为CCA)/eCCA。如果检测结果为忙,LAA设备执行下一次CCA/eCCA(重复执行步骤A);如果检测结果闲,LAA设备将N值递减。
LAA设备判断N是否大于0。如果判断结果为否(也即N=0时),LAA设备将使用非授权载波进行传输;如果判断结果为是,LAA设备重复执行步骤A。
方式2:
LAA设备获取一个数值N。
LAA设备执行一次CCA/eCCA。如果检测结果为忙,LAA设备执行下一次CCA/eCCA;如果检测结果闲,LAA设备判断N是否大于0。如果判断结果为否,LAA设备将使用非授权载波进行传输;如果判断结果为是,LAA设备将N值递减,同时返回LAA设备执行一次CCA/eCCA。
方式3:
LAA设备执行CCA/eCCA时或之前,获取一个数值N。
LAA设备执行初次CCA,如果CCA检测结果为闲,则LAA设备使用非授权载波进行数据传输;如果CCA检测结果为忙,则判断N是否大于0,如果判断结果为不大于0,则LAA设备使用非授权载波传输数据;如果判断结果为大于0,则LAA设备进入eCCA过程,执行一次CCA,如果检测结果为闲,则LAA设备将N值递减,同时返回前述的判断N是否大于0的入口;如果检测结果为忙,则LAA设备返回执行初次CCA的入口。
方式4:
LAA设备执行CCA/eCCA时或之前,获取一个数值N。
LAA设备执行初次CCA,如果CCA检测结果为闲,则LAA设备判断N-1是否大于0,如果判断为否,则LAA设备使用非授权载波进行数据传输,否则LAA设备进入eCCA过程,执行一次CCA;如果CCA检测结果为忙,则判断N是否大于0,如果判断结果为不大于0,则LAA设备使用非授权载波传输数据;如果判断结果为大于0,则LAA设备进入eCCA过程,执行一次CCA,如果检测结果为闲,则LAA设备将N值递减,同时返回前述的判断N是否大于0的入口;如果检测结果为忙,则LAA设备返回执行初次CCA的入口。
下面结合附图对本可选实施例进行举例说明;
实施例一
对应于本可选实施例的方式1,图9是根据本发明可选实施例的非授权载波的竞争方法的示意图一,如图9所示,LAA设备按照下面的流程执行CCA和/或eCCA过程来获取非授权载波的使用权,其中,该LAA设备可以是使用非授权载波的各种设备,例如基站、small cell基站、homeNB、UE等。
LAA设备获取一个数值N,该数值N可以是LAA设备随机产生,或者是其他设备配置给该LAA设备的,N为自然数,N的最大取值是预先定义的。具体N的产生方法后面将给出具体的方法。
步骤A,LAA设备执行一次CCA/eCCA(CCA或eCCA)。如果检测结果为忙,LAA 设备执行下一次CCA/eCCA(重复执行该步骤A);如果检测结果闲,LAA设备将N值递减(例如执行N=N-1)。
步骤B,LAA设备判断N是否大于0;如果判断结果为否(也即N=0时),LAA设备将使用非授权载波进行传输(也即认为LAA设备执行CCA/eCCA成功竞争获得非授权载波的使用权);如果判断结果为是,LAA设备重复执行步骤A。
下面通过本可选实施例的一个应用场景进行详细的描述,如果本可选实施例考虑到与wifi***公平竞争(如果不考虑与wifi的公平进行,N值下限取值为0):
LAA设备获取一个数值N,具体包括:N的定义为自然数。LAA设备在每次数据传输抢占非授权载波使用权时,随机产生N值,当成功获得一次非授权载波使用权进行数据发送后,下次再抢占非授权载波使用时,重新产生N值;在wifi的***中AP/STA获取非授权载波时需要先执行一次CCA,且时长等于DIFS时长(约34us),为了与wifi***公平竞争,N的取值下限设置为接近:分布式帧间间隙(Disturbuted Inter-Frame Spacing简称为DIFS)时长除以单次CCA/eCCA时长所得值附近的若干个正整数(即该数值左右各约3个正整数,3为经验值,不限于该值)。例如,假设单次CCA/eCCA的时长为18us,那么34除以18约等于1.89,那么1.89左右的正整数包括:1、2、3、4(-1、0不是正整数,所以不选取),一般选择最为接近1.89的一个数值,例如2,或者次接近1.89的一个数值,例如1。又例如,假设单次CCA/eCCA的时长为9us,那么34除以9约等于3.78,那么3.78左右的正整数包括:1、2、3、4、5、6。一般选择最为接近3.78的一个数值,例如4,或者次接近3.78的一个数值,例如3。对于特定***,N值取值下限值一般都是给定值(例如实现约定某一给定值,可以从上述方式获取)。N值的上限一般为预先定义的数值,该数值可以动态变化,以适应不同的场景,例如考虑到LAA***中LAA设备数据比较多,那么N值可以定义的比较大,这样更大的范围内易于较少碰撞(即LAA设备产生相同的N值)。根据LTE的帧结构以及OFDM符号的定义,下面给出优选的N值上限取值。LTE子帧中前3个、或前4个OFDM(包括CP)时长,除以定义CCA时长(例如9us、4us、18us、或20us),所得数值向下取整作为N值的上限。或者LTE子帧中后3个、或后4个正交频分复用OFDM(包括CP时长)时长,除以定义CCA时长(例如9us、4us、18us、或20us),所得数值向下取整作为N值的上限。eCCA是由多次CCA过程组成的。例如一个eCCA过程包含N次CCA,。
步骤A,LAA设备执行一次CCA/eCCA。如果检测结果为忙,LAA设备执行下一次CCA/eCCA(重复执行步骤A);如果检测结果闲,LAA设备将N值递减(例如执行N=N-1)。步骤A的具体实施优选方案为:如果检测结果为忙时,LAA设备执行下一次CCA/eCCA。具体为,LAA设备连续上次的CCA/eCCA结束时刻,紧接着继续下一次 CCA/eCCA检测;或者LAA设备需要等待下一个执行CCA/eCCA执行的时段(或周期)到来后,再执行的下一个CCA/eCCA,在时段或周期未带来期间,LAA设备不执行CCA/eCCA。当N值为前述的取值下限值时,LAA设备采用紧接着连续下一次CCA/eCCA检测方式,例如N值的取值下限值给定为4,那么当N=4时,那么从N递减到0的过程中,LAA设备需要在执行下一次CCA/eCCA检测时,采用紧接着连续下一次CCA/eCCA检测。对于N为其他数值时,那么从N递减到4时,LAA设备可以才紧接着连续下一次CCA/eCCA检测,或者LAA设备执行下一次CCA/eCCA采用等待允许执行的时段带来再执行。
其中,如果检测结果闲,LAA设备将N值递减(例如执行N=N-1),具体递减的数量可以大等于1,例如每一次递减2,即N=N-2。或者动态的调整递减的数量,例如当LAA设备计划发送数据具有很高的优先级时,递减的数量可以比较大,例如N=N-4。这样该LAA设备可以较大概率的获得非授权载波的使用权。或者当LAA设备连续多次竞争不到非授权载波时(具体的次数需要事先约定),该站点可以调整递减的数量。
步骤B,LAA设备判断N是否大于0。如果判断结果为否(也即N=0时),LAA设备将使用非授权载波进行传输(也即认为LAA设备执行CCA/eCCA成功竞争获得非授权载波的使用权);如果判断结果为是,LAA设备重复执行步骤A。步骤B的具体实施优选方案为:如果判断结果为是,LAA设备重复执行步骤A。具体还包括:LAA设备重复执行步骤A之前,允许重新产生一个新N值,该N值产生的范围为0~LAA设备当前N值。或者,LAA设备重复执行步骤A多次之后(具体的次数需要事先约定),允许重新产生一个新N值,该N值产生的范围为0~LAA设备当前N值。这样可以一定程度避免过长的CCA/eCCA执行过程导致资源浪费。
实施例二
对应于本可选实施的方式2,图10是根据本发明可选实施例的非授权载波的竞争方法的示意图二,如图10所示,实施例一和实施例二是类似的,仅仅是交换了N是否大于0的判断步骤和N递减步骤的顺序,所以实施一的具体实施例细节在不冲突的情况仍然可以沿用。实施例二也是一种可以执行的eCCA流程,与实施例一相比,同样N值时,LAA设备需要多执行一次CCA检测。
LAA设备(包括使用非授权载波的各种设备,例如基站、small cell基站、homeNB、UE)按照下面的流程执行CCA和/或eCCA过程来获取非授权载波的使用权。
LAA设备获取一个数值N(可以是自己随机产生的,或者其他设备配置给该设备的),N为自然数,N的最大取值是预先定义的。具体N的产生方法后面将给出具体的 方法。
步骤1,LAA设备执行一次CCA/eCCA。如果检测结果为忙,LAA设备执行下一次CCA/eCCA(重复执行步骤1);如果检测结果闲,LAA设备判断N是否大于0。如果判断结果为否(也即N=0时),LAA设备将使用非授权载波进行传输(也即认为LAA设备执行CCA/eCCA成功竞争获得非授权载波的使用权);如果判断结果为是,LAA设备执行步骤2。
步骤2,LAA设备将N值递减(例如执行N=N-1),同时返回执行步骤1。
下面代表本可选实施例的最佳实施例方式(包括下面实施方式,但不限于下面实施方式),该实施例考虑到与wifi***公平竞争(如果不考虑与wifi的公平进行,N值下限取值为0):
LAA设备获取一个数值N,具体包括:N的定义为自然数。LAA设备在每次数据传输抢占非授权载波使用权时,随机产生N值,当成功获得一次非授权载波使用权进行数据发送后,下次再抢占非授权载波使用时,重新产生N值。在wifi的***中AP/STA获取非授权载波时需要先执行一次CCA,且时长等于DIFS时长(约34us),为了与wifi***公平竞争,N的取值下限设置为接近:DIFS时长除以单次CCA/eCCA时长所得值附近的若干个正整数(即该数值左右各约3个正整数,3为经验值,不限于该值)。
实施例二相对于实施例一,N值的下限取值方法基本是相同的,但是实施例二的N的下限取值可以采用前述实施例一的方法,取定后,再减1所得数值作为实施例二的N值下限。上限也是采用实施例一的方法,取定后,再减1所得数值作为实施例二的N值上限。
下面可选给出步骤1的优选方案为:如果检测结果为忙时,LAA设备执行下一次CCA/eCCA。具体为,LAA设备连续上次的CCA/eCCA结束时刻,紧接着继续下一次CCA/eCCA检测;或者LAA设备需要等待下一个执行CCA/eCCA执行的时段(或周期)到来后,再执行的下一个CCA/eCCA,在时段或周期未带来期间,LAA设备不执行CCA/eCCA。当N值为前述的取值下限值时,LAA设备采用紧接着连续下一次CCA/eCCA检测方式,例如N值的取值下限值给定为3,那么当N=3时,那么从N递减到0的过程中,LAA设备需要在执行下一次CCA/eCCA检测时,采用紧接着连续下一次CCA/eCCA检测。对于N为其他数值时,那么从N递减到4时,LAA设备可以才紧接着连续下一次CCA/eCCA检测,或者LAA设备执行下一次CCA/eCCA采用等待允许执行的时段带来再执行。
其中,LAA设备判断N是否大于0。如果判断结果为否(也即N=0时),LAA设备 将使用非授权载波进行传输(也即认为LAA设备执行CCA/eCCA成功竞争获得非授权载波的使用权);如果判断结果为是,LAA设备重复执行步骤2。步骤1的具体实施优选方案为:如果判断结果为是,LAA设备重复执行步骤2。具体还包括:LAA设备重复执行步骤2之前,允许重新产生一个新N值,该N值产生的范围为0~LAA设备当前N值。或者,LAA设备重复执行步骤A多次之后(具体的次数需要事先约定),允许重新产生一个新N值,该N值产生的范围为0~LAA设备当前N值。这样可以一定程度避免过长的CCA/eCCA执行过程导致资源浪费。
下面可选给出步骤2的优选方案为:LAA设备将N值递减(例如执行N=N-1),同时返回执行步骤1。具体递减的数量可以大等于1,例如每一次递减2,即N=N-2。或者动态的调整递减的数量,例如当LAA设备计划发送数据具有很高的优先级时,递减的数量可以比较大,例如N=N-4。这样该LAA设备可以较大概率的获得非授权载波的使用权。或者当LAA设备连续多次竞争不到非授权载波时(具体的次数需要事先约定),该站点可以调整递减的数量。
基于此图10,在本可选实施例提供了一种非授权载波的竞争方法,包括:授权辅助接入LAA设备首先执行干净信道评估CCA的检测,在信道被感知为空闲后,LAA设备继续执行按照下面的方式执行:
S1,LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,N为非负整数;
S2,LAA设备执行CCA的检测,并且如果信道被感知为空闲,则执行S3,否则执行S4;
S3,LAA设备判断N值,如果N值不大于0,则LAA设备使用非授权载波进行数据传输,否则执行S1;
S4,LAA设备执行CCA的检测来感知信道;
S5,如果信道被感知为空闲,则LAA设备执行S1或LAA设备执行S3,否则LAA设备执行S4。
需要说明的是,在S1之前,本可选实施例的方法还包括:LAA设备随机产生随机回退的N值。
此外,本可选实施例中涉及到的CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。基于此,该S2中LAA设备执行CCA的检测为eCCA中的一次CCA检测;S4中LAA设备继续执行CCA的检测与LAA设备首先执行CCA的检测是相同,均为初始CCA检测。
基于上述非授权载波的竞争方法,本可选实施例还提供了一种非授权载波的竞争装置,应用于授权辅助接入LAA设备侧,包括:第一检测模块,用于首先执行空闲信道评估CCA的检测,在信道被感知为空闲后,装置通过以下模块继续执行:第一判断模块,用于LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,N为非负整数;第一处理模块,用于执行CCA的检测,并且如果信道被感知为空闲,则通过传输模执行操作,否则通过第二检测模块执行操作;传输模块,用于LAA设备判断N值,如果N值不大于0,则LAA设备使用非授权载波进行数据传输,否则通过第一检测模块执行;第二检测模块,用于LAA设备执行CCA的检测来感知信道;第一触发模块,用于如果信道被感知为空闲,则触发第一检测模块执行或触发处理模块执行,否则触发第二检测模块执行。
可选地,在执行空闲信道评估CCA的检测之前,装置还包括:第一产生模块,用于随机产生N值。
此外,基于该图10,本可选实施例还另外提供了一种非授权载波的竞争方法,该方法包括:授权辅助接入LAA设备首先执行干净信道评估CCA的检测,在信道被感知为空闲后,LAA设备继续执行按照下面的方式执行:
S1,LAA设备执行S4;
S2,LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,N为非负整数;
S3,LAA设备执行CCA的检测,并且如果信道被感知为空闲,则执行S4,否则执行S5;
S4,LAA设备判断N值,如果N值不大于0,则LAA设备使用非授权载波进行数据传输,否则执行S2;
S5,LAA设备执行CCA的检测来感知信道;
S6,如果信道被感知为空闲,则LAA设备执行S2或LAA设备执行S4,否则LAA设备执行S5。
需要说明的是,在S1之前,方法还包括:LAA设备随机产生随机回退的N值。
此外,本SI至S6中涉及到的CCA的检测可以包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。基于此,S3中LAA设备执行CCA的检测为eCCA中的一次CCA检测;S5中LAA设备继续执行CCA的检测与LAA设备首先执行CCA的检测是相同,均为初始CCA检测。
基于上述S1至S6的方法,本可选实施例提供了一种非授权载波的竞争装置,应用于授权辅助接入LAA设备侧,包括:第三检测模块,用于首先执行干净信道评估CCA的检测,在信道被感知为空闲后,装置通过以下模块继续执行:第二触发模块,用于触发第二处理模块执行操作;第二判断模块,用于判断N值,如果N大于0,则递减N值,执行N=N-1,其中,N为非负整数;第三检测模块,用于执行CCA的检测,并且如果信道被感知为空闲,则触发第二处理模块执行操作,否则触发第四检测模块执行操作;第二处理模块,用于LAA设备判断N值,如果N值不大于0,则使用非授权载波进行数据传输,否则用于触发第二判断模块执行操作;第四检测模块,用于执行CCA的检测来感知信道;第三触发模块,用于如果信道被感知为空闲,则触发第二触发模块执行操作或触发第二处理模块执行操作,否则触发第四检测模块执行操作。
可选地,在第二触发模块执行操作之前,装置还包括:第二产生模块,用于随机产生随机回退的N值。
需要说明的是,本可选实施例中涉及到的N的非负整数也就是大于或等于0的整数。
实施例三
对应于本可选实施例的方式3,图11是根据本发明可选实施例的非授权载波的竞争方法的示意图三,如图11所示,该方法的流程包括:
LAA设备执行CCA/eCCA时或之前,获得N值,N值的定义、获取与实施例一相同,也可以采用实施例二的N值定义。
LAA设备执行初次CCA,如果CCA检测结果为闲,则LAA设备使用非授权载波进行数据传输;如果CCA检测结果为忙,则判断N是否大于0,如果判断结果为不大于0,则LAA设备使用非授权载波传输数据;如果判断结果为大于0,则LAA设备执行一次CCA(进入eCCA过程,eCCA包括若干次CCA),如果检测结果为闲,则LAA设备将N值递减(例如N=N-1),同时返回前述的判断N是否大于0的入口;如果检测结果为忙,则LAA设备返回执行初次CCA的入口。初次CCA和eCCA过程中的单次CCA持续时长可以不等。
可选的,N的递减可以采用实施例一或实施例二的方法。
可选的,N值的下限定义为0,上限取值定义采用实施例一或实施例二中的描述。
其中,LAA设备返回执行初步CCA的入口,具体的为LAA设备立即执行下一次初 步CCA,或者等待下次初步CCA的执行时段到来后再执行初步CCA。LAA设备进入eCCA过程后,如果LAA设备正处于执行CCA/eCCA的时段内,则采用连续执行下一次CCA的方式。如果LAA设备进入非CCA/eCCA时段内,可以采用不执行CCA。
其中,N值的递减可以采用实施例一或实施例二的方法。
实施例四
对应于本可选实施例的方式4,图12是根据本发明可选实施例的非授权载波的竞争方法的示意图四,如图12所示,该方法的流程包括:
LAA设备执行CCA/eCCA时或之前,获得N值,N值的定义、获取与实施例一相同,也可以采用实施例二的N值定义。
LAA设备执行初次CCA,如果CCA检测结果为闲,则LAA设备判断N-1是否大于0,如果判断为否,则LAA设备使用非授权载波进行数据传输,否则LAA设备执行CCA(进入eCCA过程);如果CCA检测结果为忙,则判断N是否大于0,如果判断结果为不大于0,则LAA设备使用非授权载波传输数据;如果判断结果为大于0,则LAA设备执行一次CCA(进入eCCA过程,eCCA包括若干次CCA),如果检测结果为闲,则LAA设备将N值递减(例如N=N-1),同时返回前述的判断N是否大于0的入口;如果检测结果为忙,则LAA设备返回执行初次CCA的入口。
可选地,N的递减可以采用实施一或实施例二的方法。
可选地,N值的下限定义为0,上限取值定义采用实施例一或实施例二中的描述。
其中,LAA设备返回执行初步CCA的入口,具体的为LAA设备立即执行下一次初步CCA,或者等待下次初步CCA的执行时段到来后再执行初步CCA。LAA设备进入eCCA过程后,如果LAA设备正处于执行CCA/eCCA的时段内,则采用连续执行下一次CCA的方式。如果LAA设备进入非CCA/eCCA时段内,可以采用不执行CCA。
其中,N值的递减可以采用实施例一或实施例二的方法。
实施例五
需要说明的是本实施例五欲实施例四类似,图13是根据本发明可选实施例的非授权载波的竞争方法的示意图五,如图13所示,该流程包括:
LAA设备执行CCA/eCCA时或之前,获得N值,N值的定义、获取与实施例一相同,也可以采用实施例二的N值定义。
LAA设备执行初次CCA,如果CCA检测结果为闲,则LAA设备判断N-1是否大于0,如果判断为否,则LAA设备使用非授权载波进行数据传输,否则LAA设备执行CCA(进入eCCA过程);如果CCA检测结果为忙,则判断N是否大于0,如果判断结果为不大于0,则LAA设备使用非授权载波传输数据;如果判断结果为大于0,则LAA设备执行一次CCA(进入eCCA过程,eCCA包括若干次CCA),如果检测结果为闲,则LAA设备将N值递减(例如N=N-1),同时返回前述的判断N是否大于0的入口;如果检测结果为忙,则LAA设备继续执行eCCA中的下一次CCA。
可选地地,N的递减可以采用实施一或实施例二的方法。
可选地地,N值的下限定义为0,上限取值定义采用实施例一或实施例二中的描述。
其中,N值的递减可以采用实施例一或实施例二的方法。
由上述可知,本可选实施例提供了一种LAA设备获取非授权载波使用权时的抢占非授权载波的执行流程,根据该流程可以很好支持LAA设备之间,尤其是LAA设备与wifi设备之间的公平竞争。
在另外一个实施例中,还提供了一种存储介质,该存储介质中存储有上述软件,该存储介质包括但不限于:光盘、软盘、硬盘、可擦写存储器等。
显然,本领域的技术人员应该明白,上述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。
上述仅为本发明的可选实施例而已,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。
工业实用性
通过本发明实施例,采用授权辅助接入LAA设备执行空闲信道评估CCA或扩展空 闲信道评估eCCA,在评估结果为空闲时,LAA设备对N进行递减运算,并判断进行递减后的数值N是否大于零,进而在在判断结果指示递减后的N不大于零时,LAA设备将使用非授权载波进行数据传输的方式,解决了相关技术中没有适合LAA***的竞争回退机制和流程的问题,避免了相同***的邻近传输节点同时使用非授权载波时带来的干扰。

Claims (82)

  1. 一种非授权载波的竞争方法,包括:
    授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA;
    在评估结果为空闲时,所述LAA设备对N进行递减运算,并判断进行递减后的N是否大于零,其中,所述N为自然数;
    在判断结果指示递减后的N不大于零时,所述LAA设备将使用非授权载波进行数据传输。
  2. 根据权利要求1所述的方法,其中,所述方法还包括:
    在评估结果为忙时,所述LAA设备重复执行所述CCA或所述eCCA,直至所述评估结果为空闲。
  3. 根据权利要求1所述的方法,其中,所述方法还包括:
    在判断结果指示递减后的N大于零时,所述LAA设备重复执行所述CCA或所述eCCA,直到进行递减运算后的N不大于零。
  4. 根据权利要求1所述的方法,其中,所述LAA设备对N进行递减运算包括:
    所述LAA设备对本地的所述N进行第一指定数量的递减,其中,所述第一指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  5. 根据权利要求1至4任一项所述的方法,其中,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述方法还包括:
    所述LAA设备获取所述N。
  6. 根据权利要求2所述的方法,其中,
    在所述LAA设备重复执行所述CCA或所述eCCA之前,所述方法还包括:所述LAA设备获取N’,其中,所述N’为小于所述LAA设备当前N的自然数,并将所述N’的值赋予给所述N。
  7. 根据权利要求5所述的方法,其中,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述方法还包括:
    在所述LAA设备获取的所述N为所述最小值,或所述LAA设备对所述N进行递减运算后的取值为所述最小值后,所述LAA设备连续执行所述最小值次的所述CCA或所述eCCA;
    在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,所述LAA设备使用非授权载波进行数据传输。
  8. 根据权利要求7所述的方法,其中,所述方法还包括:
    在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,所述LAA设备继续执行所述最小值次的所述CCA或所述eCCA,直到所述最小值次的所述CCA或所述eCCA的评估结果都为空闲。
  9. 一种非授权载波的竞争方法,包括:
    授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA;
    在评估结果为空闲时,所述LAA设备判断M是否大于零,其中,所述M为自然数;
    在判断结果指示所述M不大于零时,所述LAA设备将使用非授权载波进行数据传输。
  10. 根据权利要求9所述的方法,其中,所述方法还包括:
    在评估结果为忙时,所述LAA设备执行重复执行所述CCA或所述eCCA,直至所述评估结果为空闲。
  11. 根据权利要求9所述的方法,其中,所述方法还包括:
    在判断结果指示所述M大于零时,所述LAA设备对所述M进行递减运算,并执行重复所述CCA或所述eCCA,直到进行递减运算后的M不大于零。
  12. 根据权利要求11所述的方法,其中,所述LAA设备对所述M进行递减运算包括:
    所述LAA设备对本地的所述M进行第二指定数量的递减,其中,所述第二指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  13. 根据权利要求9至12任一项所述的方法,其中,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述方法还包括:
    所述LAA设备获取M。
  14. 根据权利要求10所述的方法,其中,
    在所述LAA设备重新执行所述CCA或所述eCCA之前,所述方法还包括:所述LAA设备获取M’,其中,所述M’为小于所述LAA设备当前M的自然数,并将所述M’的值赋予给所述M。
  15. 根据权利要求14所述的方法,其中,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述方法还包括:
    在所述LAA设备获取的所述N为所述最小值,或所述LAA设备对所述N进行递减运算后的取值为所述最小值后,所述LAA设备连续执行所述最小值次的所述CCA或所述eCCA;
    在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,所述LAA设备使用非授权载波进行数据传输。
  16. 根据权利要求15所述的方法,其中,所述方法还包括:
    在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,所述LAA设备继续执行所述最小值次的所述CCA或所述eCCA,直到所述最小值次的所述CCA或所述eCCA的评估结果都为空闲。
  17. 一种非授权载波的竞争方法,包括:
    授权辅助接入LAA设备执行初次空闲信道评估CCA;
    在评估结果为忙时,所述LAA设备判断L是否大于零,其中,所述L为自然数;
    在判断结果指示所述L不大于零时,所述LAA设备使用非授权载波进行数据传输。
  18. 根据权利要求17所述的方法,其中,所述方法还包括:
    在评估结果为空闲时,所述LAA设备使用非授权载波进行数据传输。
  19. 根据权利要求17所述的方法,其中,所述方法还包括:
    在判断结果指示所述L大于零时,所述LAA设备执行扩展空闲信道评估eCCA中的一次CCA。
  20. 根据权利要求17所述的方法,其中,所述方法还包括:
    在评估结果为空闲时,所述LAA设备对所述L进行递减运算,并继续判断递减后的L是否大于零;
    在评估结果为忙时,所述LAA设备继续执行所述初次CCA。
  21. 根据权利要求18所述的方法,其中,所述LAA设备对所述L进行递减运算包括:
    所述LAA设备对本地的所述L进行第三指定数量的递减,其中,所述第三指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  22. 根据权利要求17至21任一项所述的方法,其中,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述方法还包括:
    所述LAA设备获取所述L。
  23. 根据权利要求19或20所述的方法,其中,
    在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述方法还包括:所述LAA设备获取L’,其中,所述L’为小于所述LAA设备当前L的自然数,并将所述L’的值赋予给所述L。
  24. 根据权利要求17所述的方法,其中,初次所述CCA的时长为34us或40us。
  25. 一种非授权载波的竞争方法,包括:
    授权辅助接入LAA设备执行初次空闲信道评估CCA;
    在评估结果为空闲时,所述LAA设备对K减去预定数量的所得值进行判断,判断所述所得值是否大于零,其中,所述K为自然数;
    在判断结果指示所述所得值不大于零时,所述LAA设备使用非授权载波进行数据传输。
  26. 根据权利要求25所述的方法,其中,所述方法还包括:
    在判断结果指示所述所得值大于零时,所述LAA设备继续执行扩展空闲信道评估eCCA中的一次CCA。
  27. 根据权利要求25所述的方法,其中,所述方法还包括:
    在评估结果为忙时,所述LAA设备判断所述K是否大于零;
    在判断结果指示所述K不大于零时,所述LAA设备使用非授权载波进行数据传输;
    在判断结果指示所述K大于零时,所述LAA设备继续执行eCCA中的一次CCA。
  28. 根据权利要求25所述的方法,其中,所述方法还包括:
    在评估结果为闲时,所述LAA设备对所述K进行递减运算,并继续判断递减后的K是否大于零;
    在评估结果为忙时,所述LAA设备继续执行所述CCA,或,所述LAA设备继续执行所述eCCA中的下一次CCA。
  29. 根据权利要求25所述的方法,其中,所述LAA设备对所述K进行递减运算包括:
    所述LAA设备对本地的所述K进行第四指定数量的递减,其中,所述第四指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  30. 根据权利要求25至29任一项所述的方法,其中,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述方法还包括:
    所述LAA设备获取所述K。
  31. 根据权利要求28所述的方法,其中,
    在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述方法还包括:所述LAA设备获取K’,其中,所述K’为小于所述LAA设备当前K的自然数,并将所述K’的值赋予给所述K。
  32. 根据权利要求25所述的方法,其中,初次所述CCA的时长为34us或40us。
  33. 根据权利要求26所述的方法,其中,所述预定数量为以初次所述CCA时长除以单次所述eCCA时长所得值为中心的预定范围内的取值。
  34. 一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:
    第一执行模块,设置为执行空闲信道评估CCA或扩展空闲信道评估eCCA;
    第一递减模块,设置为在评估结果为空闲时,对N进行递减运算,并判断进行递减后的N是否大于零,其中,所述N为自然数;
    第一传输模块,设置为在判断结果指示递减后的N不大于零时,将使用非授权载波进行数据传输。
  35. 根据权利要求34所述的装置,其中,所述装置还包括:
    第二执行模块,设置为在评估结果为忙时,重复执行所述CCA或所述eCCA,直至所述评估结果为空闲。
  36. 根据权利要求34所述的装置,其中,所述装置还包括:
    第三执行模块,设置为在判断结果指示递减后的N大于零时,重复执行所述CCA或所述eCCA,直到进行递减运算后的N不大于零。
  37. 根据权利要求34所述的装置,其中,
    所述第一递减模块,还设置为对本地的所述N进行第一指定数量的递减,其中,所述第一指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  38. 根据权利要求34至37任一项所述的装置,其中,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述装置还包括:
    第一获取模块,设置为获取所述N。
  39. 根据权利要求35所述的装置,其中,
    在所述LAA设备重新执行所述CCA或所述eCCA之前,所述装置还包括:第二获取模块,设置为获取N’,其中,所述N’为小于所述LAA设备当前N的自然数,并将所述N’的值赋予给所述N。
  40. 根据权利要求38所述的装置,其中,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述装置还包括:
    第四执行模块,设置为在所述LAA设备获取的所述N为所述最小值,或所述LAA设备对所述N进行递减运算后的取值为所述最小值后,连续执行所述最小值次的所述CCA或所述eCCA;
    第二传输模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,使用非授权载波进行数据传输。
  41. 根据权利要求40所述的装置,其中,所述装置还包括:
    第五执行模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,继续执行所述最小值次的所述CCA或所述eCCA,直到所述最小值次的所述CCA或所述eCCA的评估结果都为空闲。
  42. 一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:
    第六执行模块,设置为执行空闲信道评估CCA或扩展空闲信道评估eCCA;
    第一判断模块,设置为在评估结果为空闲时,判断M是否大于零,其中,所述M为自然数;
    第三传输模块,设置为在判断结果指示所述M不大于零时,将使用非授权载波进行数据传输。
  43. 根据权利要求42所述的装置,其中,所述装置还包括:
    第七执行模块,设置为在评估结果为忙时,执行重复执行所述CCA或所述 eCCA,直至所述评估结果为空闲。
  44. 根据权利要求42所述的装置,其中,所述装置还包括:
    第二递减模块,设置为在判断结果指示所述M大于零时,对所述M进行递减运算,并执行重复所述CCA或所述eCCA,直到进行递减运算后的M不大于零。
  45. 根据权利要求44所述的装置,其中,
    所述第二递减模块,还设置为本地的所述M进行第二指定数量的递减,其中,所述第二指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  46. 根据权利要求42至45任一项所述的装置,其中,在授权辅助接入LAA设备执行空闲信道评估CCA或扩展空闲信道评估eCCA之前,所述装置还包括:
    第三获取模块,设置为获取所述M。
  47. 根据权利要求43所述的装置,其中,
    在所述LAA设备重新执行所述CCA或所述eCCA之前,所述装置还包括:第四获取模块,设置为获取M’,其中,所述M’为小于所述LAA设备当前M的自然数,并将所述M’的值赋予给所述M。
  48. 根据权利要求47所述的装置,其中,在所述N的最小值为指定正整数时,其中,所述指定正整数为以34us除以单次所述CCA时长或单次所述eCCA时长所得数值为中心的预定范围的取值,所述装置还包括:
    第八执行模块,设置为在所述LAA设备获取的所述N为所述最小值,或所述LAA设备对所述N进行递减运算后的取值为所述最小值后,连续执行所述最小值次的所述CCA或所述eCCA;
    第四传输模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果都为空闲时,使用非授权载波进行数据传输。
  49. 根据权利要求48所述的装置,其中,所述装置还包括:
    第九执行模块,设置为在所述最小值次的所述CCA或所述eCCA的评估结果中出现忙时,继续执行所述最小值次的所述CCA或所述eCCA,直到所述最小值次的所述CCA或所述eCCA的评估结果都为空闲。
  50. 一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:
    第十执行模块,设置为执行初次空闲信道评估CCA;
    第二判断模块,设置为在评估结果为忙时,判断L是否大于零,其中,所述L为自然数;
    第五传输模块,设置为在判断结果指示所述L不大于零时,所述LAA设备使用非授权载波进行数据传输。
  51. 根据权利要求50所述的装置,其中,所述装置还包括:
    第六传输模块,设置为在评估结果为空闲时,使用非授权载波进行数据传输。
  52. 根据权利要求50所述的装置,其中,所述装置还包括:
    第十一执行模块,设置为在判断结果指示所述L大于零时,执行扩展空闲信道评估eCCA中的一次CCA。
  53. 根据权利要求50所述的装置,其中,所述装置还包括:
    第三递减模块,设置为在评估结果为空闲时,对所述L进行递减运算,并继续判断递减后的L是否大于零;
    第十二执行模块,设置为在评估结果为忙时,继续执行所述初次CCA。
  54. 根据权利要求53所述的装置,其中,
    所述第三递减模块,还设置为对本地的所述L进行第三指定数量的递减,其中,所述第三指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  55. 根据权利要求50至54任一项所述的装置,其中,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述装置还包括:
    第五获取模块,设置为取所述L。
  56. 根据权利要求52或53所述的装置,其中,
    在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述装置还包括:第六获取模块,设置为获取L’,其中,所述L’为小于所述LAA设备当前L的自然数,并将所述L’的值赋予给所述L。
  57. 根据权利要求50所述的装置,其中,初次所述CCA的时长为34us或40us。
  58. 一种非授权载波的竞争装置,位于授权辅助接入LAA设备侧,包括:
    第十三执行模块,设置为执行初次空闲信道评估CCA;
    第三判断模块,设置为在评估结果为空闲时,所述LAA设备对K减去预定数 量的所得值进行判断,判断所述所得值是否大于零,其中,所述K为自然数;
    第七传输模块,设置为在判断结果指示所述所得值不大于零时,使用非授权载波进行数据传输。
  59. 根据权利要求58所述的装置,其中,所述装置还包括:
    第十四执行模块,设置为在判断结果指示所述所得值大于零时,继续执行扩展空闲信道评估eCCA中的一次CCA。
  60. 根据权利要求58所述的装置,其中,所述装置还包括:
    第四判断模块,设置为在评估结果为忙时,判断所述K是否大于零;
    第八传输模块,设置为在判断结果指示所述K不大于零时,使用非授权载波进行数据传输;
    第十五执行模块,设置为在判断结果指示所述K大于零时,继续执行eCCA中的一次CCA。
  61. 根据权利要求60所述的装置,其中,所述装置还包括:
    第四递减模块,设置为在评估结果为闲时,对所述K进行递减运算,并继续判断递减后的K是否大于零;
    第十六执行模块,设置为在评估结果为忙时,继续执行所述CCA,或,所述LAA设备继续执行所述eCCA中的下一次CCA。
  62. 根据权利要求61所述的装置,其中,
    所述第四递减模块,还设置为对本地的所述K进行第四指定数量的递减,其中,所述第四指定数量依据所述LAA设备需要传输的数据的优先级进行动态调整。
  63. 根据权利要求58至62任一项所述的装置,其中,在授权辅助接入LAA设备执行空闲信道评估CCA之前,所述装置还包括:
    第七获取模块,设置为获取所述K。
  64. 根据权利要求61所述的装置,其中,
    在所述LAA设备执行所述eCCA中的一次CCA或继续执行所述初次CCA之前,所述装置还包括:第八获取模块,设置为获取K’,其中,所述K’为小于所述LAA设备当前K的自然数,并将所述K’的值赋予给所述K。
  65. 根据权利要求58所述的装置,其中,初次所述CCA的时长为34us或40us。
  66. 根据权利要求59所述的装置,其中,所述预定数量为以初次所述CCA时长除以单次所述eCCA时长所得值为中心的预定范围内的取值。
  67. 一种非授权载波的竞争方法,其特征在于,包括:
    授权辅助接入LAA设备首先执行干净信道评估CCA的检测,在信道被感知为空闲后,所述LAA设备继续执行按照下面的方式执行:
    S1,所述LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,所述N为非负整数;
    S2,所述LAA设备执行CCA的检测,并且如果信道被感知为空闲,则执行S3,否则执行S4;
    S3,所述LAA设备判断N值,如果N值不大于0,则所述LAA设备使用非授权载波进行数据传输,否则执行S1;
    S4,所述LAA设备执行CCA的检测来感知信道;
    S5,如果信道被感知为空闲,则所述LAA设备执行S1或所述LAA设备执行S3,否则所述LAA设备执行S4。
  68. 根据权利要求67所述的方法,其特征在于,在所述S1之前,所述方法还包括:
    所述LAA设备随机产生随机回退的N值。
  69. 根据权利要求67所述的方法,其特征在于,所述CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。
  70. 根据权利要求67所述的方法,其特征在于,
    所述S2中所述LAA设备执行CCA的检测为所述eCCA中的一次CCA检测;
    所述S4中所述LAA设备继续执行CCA的检测与所述LAA设备首先执行CCA的检测是相同,均为初始CCA检测。
  71. 一种非授权载波的竞争装置,应用于授权辅助接入LAA设备侧,其特征在于,包括:
    第一检测模块,用于首先执行空闲信道评估CCA的检测,在信道被感知为空闲后,所述装置通过以下模块继续执行:
    第一判断模块,用于所述LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,所述N为非负整数;
    第一处理模块,用于执行CCA的检测,并且如果信道被感知为空闲,则通过传输模执行操作,否则通过第二检测模块执行操作;
    所述传输模块,用于所述LAA设备判断N值,如果N值不大于0,则所述LAA设备使用非授权载波进行数据传输,否则通过所述第一检测模块执行;
    所述第二检测模块,用于所述LAA设备执行CCA的检测来感知信道;
    第一触发模块,用于如果信道被感知为空闲,则触发所述第一检测模块执行或触发所述处理模块执行,否则触发所述第二检测模块执行。
  72. 根据权利要求71所述的装置,其特征在于,在执行空闲信道评估CCA的检测之前,所述装置还包括:
    第一产生模块,用于随机产生N值。
  73. 根据权利要求71所述的装置,其特征在于,所述CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。
  74. 根据权利要求71所述的装置,其特征在于,
    所述第一处理模块中继续执行CCA的检测为所述eCCA中的一次CCA检测;
    所述第二检测模块中继续执行CCA的检测为初始CCA检测;
    所述第一检测模块中执行CCA的检测为初始CCA检测。
  75. 一种非授权载波的竞争方法,其特征在于,包括:
    授权辅助接入LAA设备首先执行干净信道评估CCA的检测,在信道被感知为空闲后,所述LAA设备继续执行按照下面的方式执行:
    S1,所述LAA设备执行S4;
    S2,所述LAA设备判断N值,如果N大于0,则LAA设备递减N值,执行N=N-1,其中,所述N为非负整数;
    S3,所述LAA设备执行CCA的检测,并且如果信道被感知为空闲,则执行S4,否则执行S5;
    S4,所述LAA设备判断N值,如果N值不大于0,则所述LAA设备使用非授权载波进行数据传输,否则执行S2;
    S5,所述LAA设备执行CCA的检测来感知信道;
    S6,如果信道被感知为空闲,则所述LAA设备执行S2或所述LAA设备执行S4,否则所述LAA设备执行S5。
  76. 根据权利要求75所述的方法,其特征在于,在所述S1之前,所述方法还包括:
    所述LAA设备随机产生随机回退的N值。
  77. 根据权利要求75所述的方法,其特征在于,所述CCA的检测包括以下之一:初始CCA检测、扩展空闲信道评估eCCA。
  78. 根据权利要求75所述的方法,其特征在于,
    所述S3中所述LAA设备执行CCA的检测为所述eCCA中的一次CCA检测;
    所述S5中所述LAA设备继续执行CCA的检测与所述LAA设备首先执行CCA的检测是相同,均为初始CCA检测。
  79. 一种非授权载波的竞争装置,应用于授权辅助接入LAA设备侧,其特征在于,包括:
    第三检测模块,用于首先执行干净信道评估CCA的检测,在信道被感知为空闲后,所述装置通过以下模块继续执行:
    第二触发模块,用于触发第二处理模块执行操作;
    第二判断模块,用于判断N值,如果N大于0,则递减N值,执行N=N-1,其中,所述N为非负整数;
    第三检测模块,用于执行CCA的检测,并且如果信道被感知为空闲,则触发所述第二处理模块执行操作,否则触发第四检测模块执行操作;
    所述第二处理模块,用于所述LAA设备判断N值,如果N值不大于0,则使用非授权载波进行数据传输,否则用于触发第二判断模块执行操作;
    第四检测模块,用于执行CCA的检测来感知信道;
    第三触发模块,用于如果信道被感知为空闲,则触发第二触发模块执行操作或触发所述第二处理模块执行操作,否则触发所述第四检测模块执行操作。
  80. 根据权利要求79所述的装置,其特征在于,在所述第二触发模块执行操作之前,所述装置还包括:
    第二产生模块,用于随机产生随机回退的N值。
  81. 根据权利要求79所述的装置,其特征在于,所述CCA的检测包括以下之一:初始 CCA检测、扩展空闲信道评估eCCA。
  82. 根据权利要求79所述的装置,其特征在于,
    所述第三检测模块中执行CCA的检测为所述eCCA中的一次CCA检测;
    所述第四检测模块中继续执行CCA的检测与所述第三检测模块首先执行CCA的检测是相同,均为初始CCA检测。
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