WO2017024858A1 - Procédé et dispositif de partage de spectre pour un spectre non autorisé - Google Patents

Procédé et dispositif de partage de spectre pour un spectre non autorisé Download PDF

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Publication number
WO2017024858A1
WO2017024858A1 PCT/CN2016/083931 CN2016083931W WO2017024858A1 WO 2017024858 A1 WO2017024858 A1 WO 2017024858A1 CN 2016083931 W CN2016083931 W CN 2016083931W WO 2017024858 A1 WO2017024858 A1 WO 2017024858A1
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Prior art keywords
window
length
monitoring
lbt mechanism
threshold
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PCT/CN2016/083931
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English (en)
Chinese (zh)
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杨维维
戴博
梁春丽
苟伟
赵亚军
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中兴通讯股份有限公司
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Publication of WO2017024858A1 publication Critical patent/WO2017024858A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

Definitions

  • the present application relates to, but is not limited to, the field of mobile wireless communications, and in particular, to a spectrum sharing method and apparatus for unlicensed spectrum.
  • LTE Long Term Evolution
  • the licensed spectrum will no longer be able to withstand such a huge amount of data. Therefore, LTE needs to be deployed in the unlicensed spectrum to share the data traffic in the authorized carrier through the unlicensed spectrum.
  • the unlicensed spectrum has the following characteristics:
  • Sharing resources when multiple different systems are operating or when different operators of the same system are operating, some ways of sharing resources can be considered to improve spectrum efficiency
  • M2M Machine-to-machine
  • V2V Vehicle-to-vehicle
  • the unlicensed spectrum is usually used in the form of LBT (listen-before-talk).
  • LBT listen-before-talk
  • the frame-based equipment FBE: Frame Based Equipment
  • the load is The process corresponding to the basic equipment (LBE: Load Based Equipment) is different.
  • the LBT process is as follows: the device needs to perform a clean channel assessment before transmission. (CCA: Clear Channel Assessment), if the evaluation result is that the channel is idle, the data is sent immediately, otherwise the data cannot be transmitted until the next fixed frame period.
  • the fixed frame is composed of a channel Occupancy Time (COT) and an idle period (Idle period), wherein the channel occupancy time is between 1 ms and 10 ms, and the minimum idle period is 5% of the channel occupation time.
  • COT channel Occupancy Time
  • Idle period idle period
  • the LBT process includes an initial CCA (initial CCA) process and an extended CCA (Extended CCA) process.
  • initial CCA initial CCA
  • extended CCA Extended CCA
  • Mode A Initial CCA process: Before transmission, the device needs to perform CCA, and judge whether the channel is idle according to the channel evaluation result. If the channel evaluation result indicates that the channel is idle, the data is immediately sent. Otherwise, the device cannot send data, and the expansion is performed clean.
  • the extended clean channel is evaluated as q observation slots.
  • the observation time slot may be a non-occupied idle time slot or a busy time slot.
  • the busy time slot is all time between two non-occupied idle time slots.
  • the initial value of q is 16.
  • the value of q is doubled. Once the q value reaches 1024, the q value of the next extended clean channel estimate is reset to 16. N is randomly selected in [1, q].
  • Mode B Initial CCA process: Before transmission, the device needs to perform CCA, and judge whether the channel is idle according to the channel evaluation result. If the channel evaluation result indicates that the channel is empty, the data is immediately sent. Otherwise, the device cannot send data, and the expansion is performed clean.
  • Channel evaluation Generate a random number N, N value is a counter, the value range is [1, q], and then perform CCA evaluation to determine whether the channel is occupied. If it is occupied, the N value is unchanged, and the CCA detection is continued. If the channel is not occupied, the value of N is decremented by one to determine whether the value of N is reduced to 0. If it is reduced to 0, the data is transmitted. Otherwise, the CCA detection is continued. That is, the device performs N times of CCA detection. If the detection channel is empty, the value of N is decremented, otherwise the value of N is unchanged, and data is transmitted when N is decremented to 0.
  • the channel occupancy time specified for the channel occupancy time control is 13 ms.
  • the existing regulations stipulate that the corresponding detection length of the CCA detection, that is, the clean channel evaluation length is not less than 20 us.
  • multiple systems work in the same spectrum, such as a WiFi (Wireless-Fidelity) system.
  • the LBT mechanisms used in different systems may be different, resulting in a fair coexistence between different systems. Therefore, LTE Working on unlicensed spectrum, addressing fair coexistence issues with other systems and ensuring efficient use of resources is critical.
  • Embodiments of the present invention provide a spectrum sharing method and device for unlicensed spectrum, which can implement fair coexistence of multiple wireless communication systems and efficient use of resources.
  • An embodiment of the present invention provides a spectrum sharing method for an unlicensed spectrum, including:
  • the transmission node of the first system competes for resources on the unlicensed spectrum based on the preset LBT mechanism
  • the transmitting node performs data transmission on the unlicensed spectrum that is contending.
  • the preset LBT mechanism refers to adjusting a contention window length in the LBT mechanism according to at least one of the following:
  • the monitoring window is after the random number N is generated in the LBT mechanism eCCA process.
  • the length of the monitoring window is determined based on the length of the competition window.
  • the monitoring window is before the random number N is generated in the LBT mechanism eCCA process.
  • the monitoring window is determined according to at least one of the following:
  • the length of the monitoring window is a fixed length
  • the monitoring window is composed of the first M LBT mechanism eCCA processes
  • the monitoring window is composed of the previous M times LBT mechanism to remove the remaining part of the data transmission before the LBT mechanism;
  • M is a positive integer.
  • the fixed length is obtained by a base station configuration, or the fixed length is a preset length.
  • the eCCA process in the first M times of the LBT mechanism is included or does not include the former M.
  • the eCCA process in the secondary LBT mechanism is included or does not include the former M.
  • the monitoring parameter in the monitoring window includes at least one of the following: the number of times the channel in the monitoring window is busy or the duration, the preset delay period in the monitoring window is the number of busy times, and the channel in the monitoring window is continuous.
  • the delay period is the delay period after the channel is busy.
  • adjusting the contention window length in the LBT mechanism according to the monitoring parameter in the monitoring window includes: adjusting a contention window length according to a comparison result between the monitoring parameter and the threshold.
  • the threshold is determined according to one of the following ways:
  • the threshold is a fixed value
  • the threshold is determined based on the length of the monitoring window.
  • the contention window length is adjusted according to a scaling factor.
  • adjusting the contention window length according to the scaling factor comprises: the contention window length is increased or decreased according to the same scaling factor, or the contention window length is increased or decreased according to different scaling factors.
  • the window length indication information includes at least one of the following obtained by the measurement window: Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and channel status information.
  • RSRP Reference Signal Receiving Power
  • RSSQ Reference Signal Receiving Quality
  • CSI Channel State Information
  • HARQ-ACK hybrid automatic repeat request acknowledgement
  • the measurement window is: a data transmission part of the pre-X times LBT mechanism eCCA process, where X is a positive integer.
  • the proprietary information is determined according to at least the interference information and the HARQ-ACK response information.
  • the embodiment of the present invention further provides a spectrum sharing device for an unlicensed spectrum, where the transmission node of the first system includes:
  • a competition module configured to compete for resources on an unlicensed spectrum based on a preset LBT mechanism
  • the transmission module is configured to perform data transmission on the unlicensed spectrum that is competing.
  • the apparatus further includes an adjustment module configured to adjust a contention window length in the LBT mechanism according to at least one of the following:
  • the adjusting module is further configured to determine the length of the monitoring window according to the contention window length.
  • the adjusting module is further configured to determine the monitoring window according to at least one of the following:
  • the length of the monitoring window is a fixed length
  • the monitoring window is composed of the first M LBT mechanism eCCA processes
  • the monitoring window is composed of the previous M times LBT mechanism to remove the remaining part of the data transmission before the LBT mechanism;
  • M is a positive integer.
  • the adjusting module is configured to adjust a contention window length in the LBT mechanism according to the monitoring parameter in the monitoring window by: adjusting a contention window length according to a comparison result between the monitoring parameter and the threshold.
  • the adjustment module is configured to determine the threshold according to one of the following ways:
  • the threshold is a fixed value
  • the threshold is determined based on the length of the monitoring window.
  • the adjustment module is further configured to adjust the contention window length according to a scaling factor.
  • the adjusting module is configured to adjust the contention window length according to a scaling factor by: the contention window length is increased or decreased according to the same scaling factor, or the contention window length is increased according to different scaling factors or Become smaller.
  • the window length indication information of the adjustment module includes at least one of the following obtained by the measurement window: reference signal received power (RSRP), reference information received quality (RSRQ), channel state information (CSI), hybrid Automatic retransmission request acknowledgement (HARQ-ACK) response information, proprietary information;
  • the measurement window is: a data transmission part of the pre-X times LBT mechanism eCCA process, where X is a positive integer;
  • the proprietary information is at least according to interference Information, HARQ-ACK response information is determined.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, the computer executable instructions being implemented to implement the spectrum sharing method of the unlicensed spectrum.
  • the embodiment of the invention has the following beneficial effects:
  • the spectrum sharing method and device for the unlicensed spectrum provided by the embodiment of the present invention can implement friendly coexistence between the LTE system and other non-LTE systems, and can fully utilize the idle resources of the non-LTE system in the transmission of the LTE system, thereby improving Resource utilization of unlicensed spectrum.
  • FIG. 1 is a flowchart of a spectrum sharing method for an unlicensed spectrum according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a spectrum sharing apparatus for an unlicensed spectrum according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a position of a monitoring window according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a position of a monitoring window according to an embodiment of the present invention.
  • Figure 5 is a schematic view showing the position of a monitoring window according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a position of a monitoring window according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a position of a monitoring window according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of monitoring parameters in a monitoring window according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a position of a measurement window according to an embodiment of the present invention.
  • an embodiment of the present invention provides a spectrum sharing method for an unlicensed spectrum, where the method includes the following steps:
  • Step S101 The transmission node of the first system competes for resources on the unlicensed spectrum based on the preset LBT mechanism.
  • Step S102 The transmitting node performs data transmission on the unlicensed spectrum that is contending.
  • the preset LBT mechanism refers to adjusting the contention window length in the LBT mechanism according to at least one of the following:
  • the monitoring window is after or before the random number N is generated in the current LBT mechanism eCCA process.
  • the length of the monitoring window is determined according to the length of the competition window.
  • the monitoring window is determined according to at least one of the following:
  • the length of the monitoring window is a fixed length
  • the monitoring window is composed of the first M LBT mechanism eCCA processes
  • the monitoring window is composed of the previous M times LBT mechanism to remove the remaining part of the data transmission before the LBT mechanism;
  • M is a positive integer.
  • the fixed length is obtained by a base station configuration, or the fixed length is a preset length.
  • the eCCA process in the first M times LBT mechanism or the eCCA process in the first M times LBT mechanism is not included.
  • the monitoring parameter in the monitoring window includes at least one of the following: the number of times the channel in the monitoring window is busy or the duration, the preset delay period is the number of busy times, the number of consecutive channels in the monitoring window is idle, and the monitoring window The channel is continuously the maximum value of the idle, the time interval in which the channel in the monitoring window is continuously idle is greater than the preset parameter threshold, and the number of channels in the monitoring window is idle; wherein, the preset The delay period is the delay period after the channel is busy.
  • Adjusting the length of the competition window in the LBT mechanism according to the monitoring parameters in the monitoring window includes: adjusting the length of the competition window according to the comparison result between the monitoring parameter and the threshold.
  • the threshold is determined according to one of the following ways:
  • the threshold is a fixed value
  • the threshold is determined based on the length of the monitoring window.
  • the adjusting the length of the contention window according to the comparison result of the monitoring parameter and the threshold including at least one of the following:
  • the length of the contention window is adjusted according to a comparison result of the number of times the channel in the monitoring window is idle and the sixth threshold.
  • the contention window length is adjusted according to a scaling factor.
  • the adjusting the contention window length according to the scaling factor includes: the contention window length is increased or decreased according to the same scaling factor, or the contention window length is increased or decreased according to different scaling factors.
  • the window length indication information includes at least one of the following obtained in the measurement window: reference signal received power (RSRP), reference information received quality (RSRQ), channel state information (CSI), mixed from Dynamic Retransmission Request Acknowledgement (HARQ-ACK) response information and proprietary information.
  • RSRP reference signal received power
  • RSRQ reference information received quality
  • CSI channel state information
  • HARQ-ACK Dynamic Retransmission Request Acknowledgement
  • the measurement window is: a data transmission part of the pre-X times LBT mechanism eCCA process, where X is a positive integer.
  • the proprietary information is determined based at least on the interference information and the HARQ-ACK response information.
  • an embodiment of the present invention further provides a spectrum sharing device for an unlicensed spectrum, including:
  • a competition module configured to compete for resources on an unlicensed spectrum based on a preset LBT mechanism
  • the transmission module is configured to perform data transmission on the unlicensed spectrum that is competing.
  • the apparatus also includes an adjustment module configured to adjust a contention window length in the LBT mechanism according to at least one of:
  • the monitoring module is further configured to determine the length of the monitoring window according to the length of the contention window when the monitoring window generates the random number N in the process of the LBT mechanism eCCA.
  • the monitoring module is further configured to determine the monitoring window according to at least one of the following when the monitoring window generates the random number N in the process of the LBT mechanism eCCA:
  • the length of the monitoring window is a fixed length
  • the monitoring window is composed of the first M LBT mechanism eCCA processes
  • the monitoring window is composed of the previous M times LBT mechanism to remove the remaining part of the data transmission before the LBT mechanism;
  • M is a positive integer.
  • the adjustment module is configured to adjust the contention window length in the LBT mechanism according to the monitoring parameter in the monitoring window by: adjusting the competition window length according to the comparison result of the monitoring parameter and the threshold.
  • the adjustment module is configured to determine the threshold according to one of the following ways:
  • the threshold is a fixed value
  • the threshold is determined based on the length of the monitoring window.
  • the adjusting module is configured to adjust the contention window length according to a comparison result between the monitoring parameter and the threshold in one of the following manners:
  • the length of the contention window is adjusted according to a comparison result of the number of times the channel in the monitoring window is idle and the sixth threshold.
  • the adjustment module is further configured to adjust the contention window length according to a scaling factor.
  • the adjustment module is configured to adjust the contention window length according to a scaling factor by the contention window length becoming larger or smaller according to the same scaling factor, or the contention window length becoming larger or smaller according to different scaling factors.
  • the window length indication information of the adjustment module includes at least one of the following obtained by the measurement window: reference signal received power (RSRP), reference information received quality (RSRQ), channel state information (CSI), hybrid automatic repeat request Acknowledgement (HARQ-ACK) response information, proprietary information;
  • the measurement window is: a data transmission part of the pre-X times LBT mechanism extended channel evaluation eCCA process, wherein X is a positive integer;
  • the proprietary information is based at least on interference information
  • the HARQ-ACK response information is determined.
  • the transmission node of the first system of the embodiment of the present invention is a base station, and the process is as follows:
  • the base station competes for resources on the unlicensed spectrum by using a preset LBT mechanism
  • the base station performs data transmission on the unlicensed spectrum that is competing.
  • the preset LBT mechanism means that the length of the competition window in the LBT mechanism is adjusted according to the monitoring parameters in the monitoring window.
  • the monitoring window is located in the process of generating the random number N in the eCCA process of the LBT mechanism, as shown in FIG. 3, wherein the monitoring window length and the competition window length q are the same, and the value range of N is [0, q];
  • Channel idle the channel is detected with eCCA length and the channel is detected to be idle;
  • Channel busy The channel between busy channel idle is busy for 1 channel busy.
  • the number of times the channel is busy is: the number of times the eCCA process is busy; in Figure 8, for example, the number of busy times is 4;
  • the number of preset delay periods is: the delay period after each busy is counted once; in FIG. 8 as an example, the number of delay periods is 4 times;
  • the number of consecutive idle occurrences is: the number of consecutive decreases in the value of N detected during eCCA; as shown in Figure 8, the number of consecutive idles is 2;
  • the maximum value of continuous idle is: the maximum value of continuous decrease of N value in the eCCA process, taking FIG. 8 as an example, the maximum value of continuous idle is 3;
  • Busy duration The length of time that the channel is busy during eCCA (including eCCA and delay period detection) Busy).
  • the length of the monitoring window is a fixed length; for example, as shown in FIG. 7 , the length is optionally configured by a base station or a preset fixed value.
  • the length of the competition window before adjustment is q, and the length of the adjusted competition window is q'.
  • the contention window length is q, that is, the random number N is generated in [0, q] during the eCCA process, and the base station determines the Lth competition window length q' according to the monitoring parameters in the monitoring window.
  • the random number N' is generated in [0, q'] in the eCCA process, and the eCCA process is performed according to N'; the monitoring window is the L-1 LBT mechanism eCCA process.
  • the base station adjusts the length of the competition window in the LBT mechanism according to the monitoring parameters in the monitoring window, which means:
  • the monitoring window detects that the channel is busy for a duration greater than or equal to the threshold Y, or
  • the monitoring window detects that the channel is busy for a duration greater than or equal to the threshold N
  • the base station adjusts the length of the competition window in the LBT mechanism according to the monitoring parameters in the monitoring window, which means:
  • the monitoring window detects that the channel is busy for a duration greater than or equal to the threshold Y, or
  • the monitoring window detects that the channel is busy for a duration greater than or equal to the threshold N
  • the competition window length q' qmin;
  • X, Y, Z, P, Q, N are related to the length of the monitoring window, the random number N, the length of the competition window, or a fixed value.
  • the base station generates a random number N between [0, q] during the L-LBT mechanism competition window length q, that is, the eCCA process, and determines the competition window length q' value according to the monitoring parameters obtained in the monitoring window, at [0] , q'] generates a random number N', and then proceeds to the eCCA process.
  • the threshold Y When the number of times the channel is busy (the duration) is monitored in the monitoring window is greater than or equal to the threshold Y,
  • Determining the q' value based on the monitoring parameters obtained in the monitoring window means:
  • the threshold Y When the number of times the channel is busy (the duration) is monitored in the monitoring window is greater than or equal to the threshold Y,
  • the values of X and Y are related to the length of the monitoring window, the random number N, the length of the competition window, or a fixed value.
  • the base station L-1 LBT mechanism competition window length is q, in the eCCA process, between [0, q] A random number N is generated, and the base station determines the value of the contention window length q' in the Lth LBT mechanism according to the received window length indication information.
  • the terminal receiving the at least one scheduling sends the proprietary information to indicate that the contention window length needs to be increased, and the contention window length becomes larger, and the proprietary information fed back to all the scheduled terminals indicates that the contention window length needs to be smaller, then the contention window length Smaller; where the proprietary information is 1 bit, 1 means getting bigger, 0 means getting smaller, or 1 means strong interference, 0 means weak interference; or proprietary information is 2 bits, indicating different interference levels, the proprietary information is The measurement window is obtained, wherein the measurement window is a data transmission part in the L-1 LBT mechanism, as shown in FIG. 9; the specific adjustment manner is referred to the third embodiment, and details are not described herein again.
  • the terminal receiving the at least one scheduling sends the proprietary information to indicate that the contention window length needs to be smaller, then the contention window length becomes smaller, and the proprietary information fed back to all the scheduled terminals indicates that the contention window length needs to be increased, then the contention window length Larger; where the proprietary information is 1 bit (according to the interference situation and / or HARQ-ACK), 1 means become larger, 0 means become smaller; or 1 means strong interference, 0 means weak interference; proprietary information is measurement window
  • the measurement window is the data transmission part in the L-1 LBT mechanism, as shown in FIG. 9; the specific adjustment manner is referred to the third embodiment, and details are not described herein again.
  • the length of the contention window is increased, and the HARQ-ACK information fed back by all the scheduled terminals is ACK, so the contention window length becomes smaller, and the HARQ-ACK is
  • the measurement window is obtained, wherein the measurement window is a data transmission part in the L-1 LBT mechanism, as shown in FIG. 9; the specific adjustment manner is referred to the third embodiment, and details are not described herein again.
  • the contention window length becomes smaller; the HARQ-ACK information received by at least one scheduled terminal feedback is NACK and the proprietary information fed back by all the scheduled terminals indicates competition. If the window length needs to be smaller, the contention window length becomes smaller; if the HARQ-ACK information received by at least one scheduled terminal feedback is NACK and at least one scheduled terminal sends the proprietary information to indicate that the contention window length needs to be large, then the contention window Length
  • the proprietary information is the same as that of the embodiment, and is not described here. For the specific adjustment method, refer to the third embodiment, and details are not described herein again.
  • the base station has the ⁇ LX, LX-1, ..., L-1 ⁇ LBT mechanism competition window length q, and in the eCCA process, a random number N is generated between [0, q], and the base station indicates according to the received window length.
  • the information determines the value of the competition window length q' in the ⁇ L, L+1, ..., L+K ⁇ times LBT mechanism.
  • X and K are positive integers greater than one; equivalent to a semi-static change in window length.
  • the terminal receiving the at least one scheduling sends the RSRP information (or the RSRQ information) to indicate that the contention window length needs to be increased, and the contention window length becomes large, and the RSRP information (or RSRQ information) received by all the scheduled terminals indicates the contention window length. If the size needs to be smaller, the length of the competition window becomes smaller; the RSRP information (or RSRQ information) is obtained within the measurement window, wherein the measurement window is the data transmission part of the LBT mechanism of ⁇ LX, LX-1, ..., L-1 ⁇ ; Refer to Embodiment 3 for the adjustment method, and details are not described herein again.
  • the terminal receiving the at least one scheduling sends the proprietary information to indicate that the contention window length needs to be increased, and the contention window length becomes larger, and the proprietary information fed back to all the scheduled terminals indicates that the contention window length needs to be smaller, then the contention window length Smaller; where the proprietary information is 1 bit, 1 means getting bigger, 0 means getting smaller, or 1 means strong interference, 0 means weak interference; or proprietary information is 2 bits, indicating different interference levels, the proprietary information is The measurement window is obtained, wherein the measurement window is a data transmission part in the LBT mechanism of the ⁇ LX, LX-1, ..., L-1 ⁇ times; the specific adjustment manner is referred to the third embodiment, and details are not described herein again.
  • the base station determines the q' value in the current eCCA process according to the monitoring parameters in the monitoring window and the received window length indication information.
  • a random number N is generated in 0, q'], and the eCCA detection process is performed according to N.
  • the q' value determined by the base station according to the monitoring parameter obtained in the monitoring window is greater than q, and the q' value determined by the base station according to the received window length indication information is less than q.
  • the embodiment of the invention further provides a computer readable storage medium, which stores a computer executable finger
  • a computer readable storage medium which stores a computer executable finger
  • modules or steps of the present application can be implemented by a general-purpose computing device, which can be centralized on a single computing device or distributed over a network of multiple computing devices. They may be implemented by program code executable by a computing device such that they may be stored in a storage device by a computing device (eg, a processor) and, in some cases, may be different than The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the application is not limited to any particular combination of hardware and software.
  • An embodiment of the present application provides a spectrum sharing method and device for an unlicensed spectrum, which can implement friendly coexistence between an LTE system and other non-LTE systems, and can fully use idle resources of a non-LTE system for transmission in an LTE system. Increased resource utilization of unlicensed spectrum.

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Abstract

L'invention concerne un procédé de partage de spectre pour un spectre non autorisé, comprenant les opérations suivantes : un nœud de transmission d'un premier système se dispute des ressources sur un spectre non autorisé sur la base d'un mécanisme d'écoute avant de parler (LBT) préétabli ; et le nœud de transmission réalise une transmission de données sur le spectre non autorisé obtenu par compétition. Le procédé mentionné ci-dessus peut réaliser la coexistence conviviale entre un système d'évolution à long terme (LTE) et d'autres systèmes non LTE, et peut utiliser entièrement une ressource au repos des systèmes non LTE sur la transmission du système LTE, permettant ainsi d'améliorer le taux d'utilisation de ressources du spectre non autorisé.
PCT/CN2016/083931 2015-08-07 2016-05-30 Procédé et dispositif de partage de spectre pour un spectre non autorisé WO2017024858A1 (fr)

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CN107995642B (zh) * 2018-01-31 2021-07-30 南京佰联信息技术有限公司 一种信息处理的方法及装置
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