WO2020258273A1 - 检测非授权频段的方法和检测非授权频段的装置 - Google Patents

检测非授权频段的方法和检测非授权频段的装置 Download PDF

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Publication number
WO2020258273A1
WO2020258273A1 PCT/CN2019/093801 CN2019093801W WO2020258273A1 WO 2020258273 A1 WO2020258273 A1 WO 2020258273A1 CN 2019093801 W CN2019093801 W CN 2019093801W WO 2020258273 A1 WO2020258273 A1 WO 2020258273A1
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WIPO (PCT)
Prior art keywords
detection mechanism
adjusted
unlicensed frequency
frequency band
base station
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PCT/CN2019/093801
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English (en)
French (fr)
Inventor
朱亚军
Original Assignee
北京小米移动软件有限公司
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.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201980001145.4A priority Critical patent/CN110495242B/zh
Priority to PCT/CN2019/093801 priority patent/WO2020258273A1/zh
Priority to EP19934421.9A priority patent/EP3993547A4/en
Priority to US17/622,752 priority patent/US20220167394A1/en
Publication of WO2020258273A1 publication Critical patent/WO2020258273A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • 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
    • 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]

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a method for detecting an unlicensed frequency band, an apparatus for detecting an unlicensed frequency band, electronic equipment, and a computer-readable storage medium.
  • the communication between the terminal and the base station is not limited to the authorized frequency band, and can also communicate in the unlicensed frequency band.
  • the unlicensed frequency band is not only occupied by the communication between the terminal and the base station, the communication of other devices may also occupy the unlicensed frequency band, so when the terminal and the base station need to communicate, if you need to occupy the unlicensed frequency band, you can use LBT (listen first, then speak, Listen Before Talk) detection mechanism to detect whether the channel is free, specifically to detect whether the channel of the unlicensed frequency band is free, and the unlicensed frequency band can be occupied for communication when the channel of the unlicensed frequency band is free.
  • LBT listen first, then speak, Listen Before Talk
  • the detection mechanism for the terminal to detect the channel of the unlicensed frequency band is mainly determined according to the configuration information of the base station, but the detection mechanism configured by the base station for the terminal is relatively fixed, and it is difficult to ensure that the channel of the unlicensed frequency band can be occupied as soon as possible.
  • the embodiments of the present disclosure propose a method for detecting an unlicensed frequency band, an apparatus for detecting an unlicensed frequency band, an electronic device, and a computer-readable storage medium to solve technical problems in related technologies.
  • a method for detecting an unlicensed frequency band is proposed, which is applicable to a terminal, and the method includes:
  • the preset communication parameters include time information of a scheduling instruction sent by the base station, and a time interval between the time domain resources scheduled by the scheduling instruction;
  • the determining whether a detection mechanism for channels of unlicensed frequency bands needs to be adjusted according to preset communication parameters includes:
  • the preset communication parameters include time domain resources for uplink transmission scheduled by a scheduling instruction sent by the base station;
  • the determining whether a detection mechanism for channels of unlicensed frequency bands needs to be adjusted according to preset communication parameters includes:
  • the preset communication parameters include the time information of the scheduling instruction sent by the base station, the time interval between the time domain resources scheduled by the scheduling instruction, and the uplink transmission scheduled by the scheduling instruction sent by the base station Time domain resources;
  • the determining whether a detection mechanism for channels of unlicensed frequency bands needs to be adjusted according to preset communication parameters includes:
  • time interval is greater than the preset duration, determining whether the time domain resource for uplink transmission is outside the current channel occupation time of the unlicensed frequency band;
  • the preset communication parameters include a preset pilot sequence sent by the base station, and determining whether a detection mechanism for channels of an unlicensed frequency band needs to be adjusted according to the preset communication parameters includes:
  • the preset communication parameters include indication information sent by the base station, and the determination according to the preset communication parameters whether it is necessary to adjust a detection mechanism for channels of an unlicensed frequency band includes:
  • the detection mechanism after determination and adjustment includes:
  • the indication information is included in the first downlink control information, where the first downlink control information is also used to indicate other information to the terminal.
  • the indication information is included in second downlink control information, where the second downlink control information specifically indicates a detection mechanism to the terminal.
  • the indication information is a scrambling sequence
  • determining the adjusted detection mechanism according to the indication information sent by the base station includes:
  • the detection mechanism corresponding to the scrambling sequence is the adjusted detection mechanism.
  • the indication information is used to indicate to update the determined detection mechanism.
  • the indication information is used to indicate a detection mechanism.
  • the determining and adjusting detection mechanism includes:
  • a device for detecting unlicensed frequency bands which is suitable for terminals, and the device includes:
  • the adjustment determination module is configured to determine whether it is necessary to adjust the detection mechanism for the channel of the unlicensed frequency band according to preset communication parameters
  • the mechanism determination module is configured to determine the adjusted detection mechanism when the detection mechanism needs to be adjusted
  • the channel detection module is configured to detect channels in the unlicensed frequency band according to the adjusted detection mechanism.
  • the preset communication parameters include time information of a scheduling instruction sent by the base station, and a time interval between the time domain resources scheduled by the scheduling instruction;
  • the adjustment determining module is configured to determine whether the time interval is greater than a preset duration
  • the preset communication parameters include time domain resources for uplink transmission scheduled by a scheduling instruction sent by the base station;
  • the adjustment determining module is configured to determine whether the time domain resource of the uplink transmission is outside the current channel occupation time of the unlicensed frequency band;
  • the preset communication parameters include the time information of the scheduling instruction sent by the base station, the time interval between the time domain resources scheduled by the scheduling instruction, and the uplink transmission scheduled by the scheduling instruction sent by the base station Time domain resources;
  • the adjustment determining module is configured to determine whether the time interval is greater than a preset duration
  • time interval is greater than the preset duration, determining whether the time domain resource for uplink transmission is outside the current channel occupation time of the unlicensed frequency band;
  • the preset communication parameters include a preset pilot sequence sent by the base station, and the adjustment determination module is configured to determine whether the preset pilot sequence is received;
  • the preset communication parameters include indication information sent by the base station, and the adjustment determination module is configured to determine whether the indication information is received;
  • the mechanism determining module is configured to determine the adjusted detection mechanism according to the instruction information sent by the base station.
  • the indication information is included in the first downlink control information, where the first downlink control information is also used to indicate other information to the terminal.
  • the indication information is included in second downlink control information, where the second downlink control information specifically indicates a detection mechanism to the terminal.
  • the indication information is a scrambling sequence
  • the mechanism determining module is configured to determine the scrambling sequence corresponding to the scrambling sequence according to the scrambling sequence and the association relationship between the prestored scrambling sequence and the detection mechanism
  • the detection mechanism is an adjusted detection mechanism.
  • the indication information is used to indicate to update the determined detection mechanism.
  • the indication information is used to indicate a detection mechanism.
  • the mechanism determining module is configured to determine the type of the adjusted detection mechanism and the parameters of the adjusted detection mechanism.
  • an electronic device including:
  • a memory for storing processor executable instructions
  • the processor is configured to implement the method for detecting an unlicensed frequency band described in any of the foregoing embodiments.
  • a computer-readable storage medium on which a computer program is stored.
  • the program is executed by a processor, the method for detecting an unlicensed frequency band according to any of the above embodiments is implemented step.
  • the detection mechanism for the channel of the unlicensed frequency band according to preset communication parameters, and to adjust the detection mechanism if necessary, to determine the adjusted detection mechanism, and then detect according to the adjusted detection mechanism Channels in unlicensed bands.
  • the detection mechanism for channels in unlicensed frequency bands is not limited to the case where the base station configures the channels through configuration information in related technologies.
  • the terminal can autonomously determine whether it is necessary to adjust the channels of unlicensed frequency bands according to preset communication parameters. Detection mechanism. Since the terminal can be determined based on the preset communication parameters, the terminal cannot accurately determine the communication status of the terminal relative to the base station on the basis of determining the preset communication parameters, and can determine its own communication to a certain extent. In order to determine whether to adjust the detection mechanism to make the adjusted detection mechanism more suitable for its own communication conditions, and to a certain extent, it can speed up the occupation of channels in the unlicensed frequency band to ensure that the terminal's communication process is completed in time.
  • Fig. 1 is a schematic flowchart showing a method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Figure 2 is a schematic diagram of a cat2 detection mechanism.
  • Figure 3 is a schematic diagram of a cat4 detection mechanism.
  • Figure 4 is a schematic diagram of a base station configuring a detection mechanism for a terminal in the related art.
  • Fig. 5 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 6 is a schematic diagram showing whether a detection mechanism needs to be adjusted according to an embodiment of the present disclosure.
  • Fig. 7 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 8 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 9 is a schematic flow chart showing yet another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 10 is a schematic flow chart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 11 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 12 is a schematic diagram showing an adjusted detection mechanism according to indication information sent by a base station according to an embodiment of the present disclosure.
  • Fig. 13 is a schematic flow chart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 14 is a schematic block diagram showing an apparatus for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 15 is a schematic block diagram showing an apparatus for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • Fig. 1 is a schematic flowchart showing a method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the method for detecting unlicensed frequency bands shown in this embodiment can be applied to terminals, which include, but are not limited to, mobile phones, tablets, wearable devices and other electronic devices.
  • the terminal can be used as a user equipment to communicate with a base station, and can communicate through
  • the licensed frequency band for example, the frequency band of an operator's network
  • communicates with the base station and it can also communicate with the base station through an unlicensed frequency band (for example, the frequency band of a Wi-Fi network).
  • the method for detecting an unlicensed frequency band may include the following steps:
  • step S1 it is determined whether it is necessary to adjust the detection mechanism for the channel of the unlicensed frequency band according to the preset communication parameters
  • step S2 if the detection mechanism needs to be adjusted, determine the adjusted detection mechanism
  • step S3 the channel of the unlicensed frequency band is detected according to the adjusted detection mechanism.
  • detection mechanisms for channels in unlicensed frequency bands include but are not limited to cat1 (no LBT), cat2 (no random backoff LBT), cat3 (random backoff LBT using a fixed-length contention window), and cat4 (using unlicensed Random backoff of fixed-length contention window (LBT), the following mainly uses cat2 and cat4 as examples to illustrate the embodiments of the present disclosure.
  • Figure 2 is a schematic diagram of a cat2 detection mechanism.
  • the sending end of the terminal sending data during the communication with the base station can be within the time corresponding to CCA (Clear Channel Assessment).
  • CCA Common Channel Assessment
  • each CCA corresponds to a slot (slot).
  • slot To detect whether the channel of the unlicensed frequency band is occupied, and the interval of each CCA and the channel occupation time are fixed.
  • the first CCA and the third CCA's channel detection results for the unlicensed frequency band are detected to be idle, indicating that the channel of the unlicensed frequency band is not occupied by other devices, then the unlicensed frequency band can be occupied after the two CCAs
  • the channel of the unlicensed band was detected to be busy for the second time by CCA, indicating that the channel of the unlicensed band was occupied by other devices, so after this CCA, the channel of the unlicensed band is not occupied for data transmission.
  • Figure 3 is a schematic diagram of a cat4 detection mechanism.
  • a count value N of the backoff counter can be uniformly and randomly generated from 0 to Contention Window Size (CWS, Contention Window Size), where N is between 0 and CWS.
  • the counter value When CCA detects that the channel of the unlicensed band is idle, the counter value is reduced by 1. When CCA detects that the channel of the unlicensed band is busy, the counter value remains unchanged. When the counter value is 0, the unlicensed band is immediately occupied Channel.
  • the contention window length CWS is a dynamic value. Based on whether the data sent on a preset reference resource is successfully received by the receiving end, the CWS can be dynamically adjusted to obtain an appropriate CWS value according to the channel status and network traffic load. In this way, a trade-off is achieved between reducing collisions between transmitting ends and improving channel access efficiency.
  • the CWS used to detect the channel is 15, and the counter value is 7, then after the CCA detects that the channel in the unlicensed frequency band is idle twice, 4 times CCA detects that the channel of the unlicensed band is busy, and then CCA detects that the channel of the unlicensed band is idle for 5 times, so that a total of 7 times CCA detects that the channel of the unlicensed band is idle, the counter value is reduced to 0, and the channel of the unlicensed band is occupied to receive Send data at the end.
  • the sending end can adjust the CWS while occupying the channel of the unlicensed frequency band, for example, increase the CWS to 31, the counter value is 20, then the sending end sends to the receiving end for the second time
  • the channel of the unlicensed frequency band is occupied to send data to the receiving end.
  • Figure 4 is a schematic diagram of a base station configuring a detection mechanism for a terminal in the related art.
  • the detection mechanism configured by the base station for the terminal is relatively fixed, and the communication status of the terminal cannot be accurately determined.
  • the base station sends a scheduling instruction to the terminal during channel occupation time 1, and the scheduling instruction is used to schedule the terminal to perform uplink transmission on a certain time domain resource other than channel occupation time 1.
  • the base station does not know that the terminal performs uplink transmission. Whether the transmitted time domain resource is within its channel occupation time, for example, after channel occupation time 1, the base station still occupies the channel of the unlicensed frequency band in channel occupation time 2, but when the base station sends a scheduling instruction to the terminal during channel occupation time 1, and It is unknown whether the time domain resources of the terminal uplink transmission are within the channel occupation time 2.
  • the base station can only instruct the terminal to use a detection mechanism with a lower priority (for example, cat4, because it requires multiple CCA detections to be idle before it can occupy the channel of the unlicensed frequency band.
  • the detection time is required. Longer) to detect channels in unlicensed bands.
  • the time domain resources for the terminal to perform uplink transmission are within the channel occupancy time 2.
  • the base station can instruct the terminal to use a detection mechanism with a higher priority (for example, cat2, because it needs Once CCA detects that it is idle, it can occupy the channel of the unlicensed band, and the detection time is shorter) to detect the channel of the unlicensed band, but the base station has instructed the terminal to use the detection mechanism with lower priority to detect the channel of the unlicensed band , Which causes the terminal to fail to occupy the channel of the unlicensed frequency band as soon as possible.
  • a detection mechanism with a higher priority for example, cat2
  • the preset communication parameters may be preset communication parameters for communicating with the base station, and the preset communication parameters may be preset by the base station.
  • the configuration can also be pre-defined by the protocol.
  • the preset communication parameters include, but are not limited to: the time information of the scheduling instruction sent by the base station, and the time interval between the time domain resources scheduled by the scheduling instruction; the time domain resources of uplink transmission scheduled by the scheduling instruction sent by the base station; preset Pilot sequence etc. Specific examples of preset communication parameters will be described in subsequent embodiments.
  • the detection mechanism for the channel of the unlicensed frequency band according to preset communication parameters, and to adjust the detection mechanism if necessary, to determine the adjusted detection mechanism, and then detect according to the adjusted detection mechanism Channels in unlicensed bands.
  • the adjustment detection mechanism described in this embodiment includes, but is not limited to, the detection mechanism that has been determined before the change; if the terminal has not determined the detection mechanism before, the adjustment detection mechanism described in this embodiment may refer to Indicate the detection mechanism for the terminal.
  • the detection mechanism for channels in unlicensed frequency bands is not limited to the case where the base station configures the channels through configuration information in related technologies.
  • the terminal can autonomously determine whether it is necessary to adjust the channels of unlicensed frequency bands according to preset communication parameters. Detection mechanism. Since the terminal can be determined based on the preset communication parameters, the terminal cannot accurately determine the communication status of the terminal relative to the base station on the basis of determining the preset communication parameters, and can determine its own communication to a certain extent. In order to determine whether to adjust the detection mechanism to make the adjusted detection mechanism more suitable for its own communication conditions, and to a certain extent, it can speed up the occupation of channels in the unlicensed frequency band to ensure that the terminal's communication process is completed in time.
  • Fig. 5 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the preset communication parameters include the time information of the scheduling instruction sent by the base station, and the time interval between the time domain resources scheduled by the scheduling instruction;
  • the determining whether a detection mechanism for channels of unlicensed frequency bands needs to be adjusted according to preset communication parameters includes:
  • step S11 it is determined whether the time interval is greater than a preset duration
  • the preset communication parameters include the time information of the scheduling instruction sent by the base station and the time interval between the time domain resources scheduled by the scheduling instruction.
  • the base station Since the base station sends the scheduling instructions to the terminal within the channel occupation time of the base station in the unlicensed frequency band, the base station can send data, signaling and other information to the base station during the channel occupation time.
  • the time interval is greater than the preset duration, the scheduling The time domain resource scheduled by the command is far away from the channel occupation time of the base station in the unlicensed frequency band, then the channel status of the unlicensed frequency band near the time domain resource is relative to the channel occupation time of the base station in the unlicensed frequency band.
  • the state has a high probability that it has changed. Therefore, the original detection mechanism may not be accurately applied to the channel state of the unlicensed frequency band under the time domain resource. Then the detection mechanism can be adjusted, for example, the detection mechanism can be adjusted from cat4 to cat2.
  • the channel status of the unlicensed frequency band near the time domain resource has a greater probability of not changing with respect to the channel occupation time of the base station in the unlicensed frequency band.
  • the original detection mechanism is more likely to be accurately applied to the channel state of the unlicensed frequency band under the time domain resource, so the original detection mechanism can be maintained.
  • Fig. 6 is a schematic diagram showing whether a detection mechanism needs to be adjusted according to an embodiment of the present disclosure.
  • the cat4 detection mechanism is used to detect the channel of the unlicensed frequency band.
  • the preset duration is 5 Time slots.
  • the time interval between the time domain resource of the scheduled uplink transmission 1 and the time information of the scheduling command in the scheduling command is 4 time slots
  • the time domain resource of the scheduled uplink transmission 2 and the time information of the scheduling command in the scheduling command The interval is 9 timeslots, and 4 timeslots are less than 5 timeslots, and 9 timeslots are greater than 5 timeslots.
  • Fig. 7 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the preset communication parameters include the time-domain resources of uplink transmission scheduled by the scheduling instructions sent by the base station, and the detection mechanism for channels of unlicensed frequency bands is determined according to the preset communication parameters. include:
  • step S12 it is determined whether the time domain resource of the uplink transmission is outside the current channel occupation time of the unlicensed frequency band
  • the current channel occupancy time of the unlicensed frequency band refers to the channel occupancy time of the unlicensed frequency band in the recent communication between the base station and the terminal. It can be the channel occupancy time of the channel in the unlicensed frequency band occupied by the base station or the terminal occupies the unlicensed frequency band. The channel occupation time of the channel in the frequency band.
  • the preset communication parameters include time domain resources of uplink transmission scheduled by the scheduling instruction sent by the base station.
  • the time domain resource corresponding to the terminal uplink transmission can be determined. If the time of the latest communication between the base station and the terminal is long, then the time domain resource is not near the time domain resource.
  • the channel status of the licensed frequency band compared with the channel status of the unlicensed frequency band during the communication time between the base station and the terminal, has a greater probability of having changed. Therefore, the original detection mechanism has a greater probability of not being accurately applied to the unlicensed frequency under the time domain resources.
  • the detection mechanism can be adjusted, for example, the detection mechanism can be adjusted from cat4 to cat2.
  • the channel state of the unlicensed frequency band near the time domain resource is relative to the channel state of the unlicensed frequency band during communication between the base station and the terminal.
  • the greater probability has not changed, and the original detection mechanism has a greater probability of being accurately applicable to the channel state of the unlicensed frequency band under the time domain resource, so the original detection mechanism can be maintained.
  • Fig. 8 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the preset communication parameters include the time information of the scheduling instruction sent by the base station, the time interval between the time domain resources scheduled by the scheduling instruction, and the scheduling instruction sent by the base station. Time domain resources for uplink transmission;
  • the determining whether a detection mechanism for channels of unlicensed frequency bands needs to be adjusted according to preset communication parameters includes:
  • step S13 it is determined whether the time interval is greater than a preset duration
  • step S14 if the time interval is greater than the preset duration, it is determined whether the time domain resource of the uplink transmission is outside the current channel occupation time of the unlicensed frequency band;
  • the embodiments shown in FIG. 5 and FIG. 7 may be combined to first determine whether the time interval is greater than a preset time period, and if the time interval is greater than the preset time period, further determine the Whether the time domain resource of uplink transmission is outside the current channel occupation time of the unlicensed frequency band, and then when the time domain resource of uplink transmission is outside the current channel occupation time of the unlicensed frequency band, it is determined that the detection mechanism needs to be adjusted.
  • the detection mechanism does not need to be adjusted.
  • Fig. 9 is a schematic flow chart showing yet another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the preset communication parameters include a preset pilot sequence sent by the base station, and the determination according to the preset communication parameters whether it is necessary to adjust a detection mechanism for channels of an unlicensed frequency band includes:
  • step S15 it is determined whether the preset pilot sequence is received
  • the preset pilot sequence may be used to detect the channel, correct the frequency offset, etc.
  • the preset pilot sequence may be an existing pilot sequence in the prior art, or it may be different. There are new pilot sequences of pilot sequences in the prior art.
  • Fig. 10 is a schematic flow chart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the preset communication parameters include the instruction information sent by the base station, and the determination according to the preset communication parameters whether it is necessary to adjust the detection mechanism for the channels of the unlicensed frequency band includes:
  • step S16 it is determined whether the instruction information is received
  • the detection mechanism after determination and adjustment includes:
  • step S21 the adjusted detection mechanism is determined according to the instruction information sent by the base station.
  • the detection mechanism it can be determined whether the detection mechanism needs to be adjusted according to whether the instruction information sent by the base station is received.
  • the instruction information sent by the base station it indicates that the base station needs to adjust the detection mechanism, which can then be determined according to the instruction information sent by the base station.
  • the indication information may be included in DCI (Downlink Control Information, Downlink Control Information).
  • the indication information is included in the first downlink control information, where the first downlink control information is also used to indicate other information to the terminal.
  • the indication information may be included in the first downlink control information.
  • the first downlink control information may not be specifically used to indicate the detection mechanism. In addition to indicating the detection mechanism, it may also indicate other information, such as The indication information may be carried by the DCI used to indicate power control or HARQ (Hybrid Automatic Repeat reQuest) information sent by the base station to the terminal in the prior art.
  • HARQ Hybrid Automatic Repeat reQuest
  • the indication information is included in second downlink control information, where the second downlink control information specifically indicates a detection mechanism to the terminal.
  • the indication information may be included in the second downlink control information, and the second downlink control information may be downlink control information information specifically used to indicate the detection mechanism, and may be a new DCI different from the DCI in the prior art. .
  • Fig. 11 is a schematic flowchart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the indication information is a scrambling sequence
  • determining the adjusted detection mechanism according to the indication information sent by the base station includes:
  • step S22 the detection mechanism corresponding to the scrambling sequence is determined to be the adjusted detection mechanism according to the correlation between the scrambling sequence and the pre-stored scrambling sequence and the detection mechanism.
  • the association relationship between the scrambling sequence and the detection mechanism may be stored in advance, where the indication information may be a CRC (Cyclic Redundancy Check) scrambling sequence.
  • the detection mechanism corresponding to the scrambling sequence can be determined to be the adjusted detection mechanism according to the scrambling sequence and the association relationship between the prestored scrambling sequence and the detection mechanism.
  • the indication information is used to indicate to update the determined detection mechanism.
  • the indication information is used to indicate a detection mechanism.
  • the adjusted detection mechanism may be determined according to the instruction information sent by the base station, but the manner in which the instruction information indicates the detection mechanism may be different.
  • the terminal may be instructed to instruct the determined detection mechanism to update. It is also possible to indicate the detection mechanism for the terminal when the detection mechanism is not determined before the terminal receives the indication information, and the terminal uses the indicated detection mechanism to perform detection.
  • the terminal does not determine the detection mechanism before receiving the indication information, which may mean that the base station does not indicate which detection mechanism the terminal uses before receiving the indication information, or it may be that the terminal does not determine the detection mechanism before receiving the indication information.
  • the indication signaling from the base station is received, the indication signaling instructs the terminal to inform the terminal subsequently which detection mechanism to use.
  • Fig. 12 is a schematic diagram showing an adjusted detection mechanism according to indication information sent by a base station according to an embodiment of the present disclosure.
  • the base station can send scheduling instruction 1 to the terminal during channel occupancy time 1.
  • the indication information carried by scheduling instruction 1 instructs the terminal to detect the channel of the unlicensed band according to the cat4 detection mechanism when it needs uplink transmission (this is equivalent to direct Indication adjustment detection mechanism), and then the base station can send indication signaling 2 to the terminal during channel occupation time 2 (the indication signaling can be used to schedule the terminal or control the terminal), and the indication signaling 2 carries
  • the indication information instructs the terminal to adjust the determined detection mechanism (for example, cat4 detection mechanism) when it needs uplink transmission, for example, adjust to cat2 detection mechanism, then the terminal can detect the unlicensed frequency band according to the cat2 detection mechanism when performing uplink transmission channel.
  • Fig. 13 is a schematic flow chart showing another method for detecting an unlicensed frequency band according to an embodiment of the present disclosure. As shown in FIG. 13, the detection mechanism after determination and adjustment includes:
  • step S23 the type of the adjusted detection mechanism and the parameters of the adjusted detection mechanism are determined.
  • determining the adjusted detection mechanism includes, but is not limited to, determining the type of the adjusted detection mechanism, as well as determining the parameters of the adjusted detection mechanism.
  • the indicator information in the above-mentioned embodiment can indicate detection. What kind of parameters the mechanism uses, taking the cat4 detection mechanism as an example, can indicate the specific value of the CWS.
  • the present disclosure also provides an embodiment of a device for detecting an unlicensed frequency band.
  • Fig. 14 is a schematic block diagram showing an apparatus for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the apparatus for detecting unlicensed frequency bands shown in this embodiment can be applied to terminals.
  • the terminals include, but are not limited to, mobile phones, tablets, wearable devices and other electronic devices.
  • the terminals can be used as user equipment to communicate with the base station, and can communicate through
  • the authorized frequency band for example, the frequency band of the operator's network
  • communicates with the base station and it can also communicate with the base station through an unlicensed frequency band (for example, a Wi-Fi network).
  • the device for detecting an unlicensed frequency band may include
  • the adjustment determination module 1 is configured to determine whether it is necessary to adjust the detection mechanism for the channel of the unlicensed frequency band according to preset communication parameters;
  • the mechanism determining module 2 is configured to determine the adjusted detection mechanism when the detection mechanism needs to be adjusted;
  • the channel detection module 3 is configured to detect channels in the unlicensed frequency band according to the adjusted detection mechanism.
  • the preset communication parameters include time information of a scheduling instruction sent by the base station, and a time interval between the time domain resources scheduled by the scheduling instruction;
  • the adjustment determining module is configured to determine whether the time interval is greater than a preset duration
  • the preset communication parameters include time domain resources for uplink transmission scheduled by a scheduling instruction sent by the base station;
  • the adjustment determining module is configured to determine whether the time domain resource of the uplink transmission is outside the current channel occupation time of the unlicensed frequency band;
  • the preset communication parameters include the time information of the scheduling instruction sent by the base station, the time interval between the time domain resources scheduled by the scheduling instruction, and the uplink transmission scheduled by the scheduling instruction sent by the base station Time domain resources;
  • the adjustment determining module is configured to determine whether the time interval is greater than a preset duration
  • time interval is greater than the preset duration, determining whether the time domain resource for uplink transmission is outside the current channel occupation time of the unlicensed frequency band;
  • the preset communication parameters include a preset pilot sequence sent by the base station, and the adjustment determination module is configured to determine whether the preset pilot sequence is received;
  • the preset communication parameters include indication information sent by the base station, and the adjustment determination module is configured to determine whether the indication information is received;
  • the mechanism determining module is configured to determine the adjusted detection mechanism according to the instruction information sent by the base station.
  • the indication information is included in the first downlink control information, where the first downlink control information is also used to indicate other information to the terminal.
  • the indication information is included in second downlink control information, where the second downlink control information specifically indicates a detection mechanism to the terminal.
  • the indication information is a scrambling sequence
  • the mechanism determining module is configured to determine the scrambling sequence corresponding to the scrambling sequence according to the scrambling sequence and the association relationship between the prestored scrambling sequence and the detection mechanism
  • the detection mechanism is an adjusted detection mechanism.
  • the indication information is used to indicate to update the determined detection mechanism.
  • the indication information is used to indicate a detection mechanism.
  • the mechanism determining module is configured to determine the type of the adjusted detection mechanism and the parameters of the adjusted detection mechanism.
  • the relevant part can refer to the part of the description of the method embodiment.
  • the device embodiments described above are merely illustrative.
  • the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.
  • the embodiment of the present disclosure also proposes an electronic device, including:
  • a memory for storing processor executable instructions
  • the processor is configured to implement the method for detecting an unlicensed frequency band described in any of the foregoing embodiments.
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps in the method for detecting an unlicensed frequency band described in any of the above embodiments are implemented.
  • Fig. 15 is a schematic block diagram showing an apparatus 1500 for detecting an unlicensed frequency band according to an embodiment of the present disclosure.
  • the apparatus 1500 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • the device 1500 may include one or more of the following components: a processing component 1502, a memory 1504, a power supply component 1506, a multimedia component 1508, an audio component 1510, an input/output (I/O) interface 1512, a sensor component 1514, And the communication component 1516.
  • the processing component 1502 generally controls the overall operations of the device 1500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 1502 may include one or more processors 1520 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 1502 may include one or more modules to facilitate the interaction between the processing component 1502 and other components.
  • the processing component 1502 may include a multimedia module to facilitate the interaction between the multimedia component 1508 and the processing component 1502.
  • the memory 1504 is configured to store various types of data to support operations in the device 1500. Examples of these data include instructions for any application or method operating on the device 1500, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 1504 can be implemented by any type of volatile or non-volatile storage devices or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power supply component 1506 provides power for various components of the device 1500.
  • the power supply component 1506 may include a power management system, one or more power supplies, and other components associated with the generation, management, and distribution of power for the device 1500.
  • the multimedia component 1508 includes a screen that provides an output interface between the device 1500 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 1508 includes a front camera and/or a rear camera. When the device 1500 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 1510 is configured to output and/or input audio signals.
  • the audio component 1510 includes a microphone (MIC), and when the device 1500 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 1504 or transmitted via the communication component 1516.
  • the audio component 1510 further includes a speaker for outputting audio signals.
  • the I/O interface 1512 provides an interface between the processing component 1502 and the peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 1514 includes one or more sensors for providing the device 1500 with various aspects of status assessment.
  • the sensor component 1514 can detect the open/close state of the device 1500 and the relative positioning of components.
  • the component is the display and the keypad of the device 1500.
  • the sensor component 1514 can also detect the position change of the device 1500 or a component of the device 1500. , The presence or absence of contact between the user and the device 1500, the orientation or acceleration/deceleration of the device 1500, and the temperature change of the device 1500.
  • the sensor assembly 1514 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 1514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 1514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 1516 is configured to facilitate wired or wireless communication between the device 1500 and other devices.
  • the device 1500 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof.
  • the communication component 1516 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 1516 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 1500 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing equipment (DSPD), programmable logic devices (PLD), field programmable Implemented by a gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components, and used to implement the method described in any of the foregoing embodiments.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing equipment
  • PLD programmable logic devices
  • FPGA field programmable Implemented by a gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components, and used to implement the method described in any of the foregoing embodiments.
  • non-transitory computer-readable storage medium including instructions, such as a memory 1504 including instructions, which may be executed by the processor 1520 of the device 1500 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

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Abstract

本公开涉及检测非授权频段的方法,装置,电子设备和计算机可读存储介质,所述方法包括:根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制;若需要调整检测机制,确定调整后的检测机制;根据调整后的检测机制检测非授权频段的信道。根据本公开的实施例,可以一定程度上提高加快占用非授权频段的信道的速度,确保终端的通信过程及时完成。

Description

检测非授权频段的方法和检测非授权频段的装置 技术领域
本公开涉及通信技术领域,具体而言,涉及检测非授权频段的方法,检测非授权频段的装置,电子设备和计算机可读存储介质。
背景技术
随着终端与基站通信场景的拓展,终端与基站的通信已不限于授权频段,还可以在非授权频段通信。
但是由于非授权频段并非只有终端与基站的通信会占用,其他设备的通信也可能占用非授权频段,所以终端与基站需要通信时,若需要占用非授权频段,可以采用LBT(先听后说,Listen Before Talk)检测机制来检测信道是否空闲,具体是检测非授权频段的信道是否空闲,在非授权频段的信道空闲时,才能占用非授权频段进行通信。
现有技术中终端对于非授权频段的信道进行检测的检测机制,主要是根据基站的配置信息来确定,但是基站为终端配置的检测机制相对固定,难以保证能够尽快占用非授权频段的信道。
发明内容
有鉴于此,本公开的实施例提出了检测非授权频段的方法,检测非授权频段的装置,电子设备和计算机可读存储介质,以解决相关技术中的技术问题。
根据本公开实施例的第一方面,提出一种检测非授权频段的方法,适用于终端,所述方法包括:
根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制;
若需要调整检测机制,确定调整后的检测机制;
根据调整后的检测机制检测非授权频段的信道。
可选地,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔;
所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
确定所述时间间隔是否大于预设时长;
其中,若所述时间间隔大于预设时长,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的调度指令所调度的上行传输的时域资源;
所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
确定所述上行传输的时域资源,是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔,以及所述基站发送的调度指令所调度的上行传输的时域资源;
所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
确定所述时间间隔是否大于预设时长;
若所述时间间隔大于预设时长,确定所述上行传输的时域资源是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的预设导频序列,所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
确定是否接收到所述预设导频序列;
其中,若接收到所述预设导频序列,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的指示信息,所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
确定是否接收到所述指示信息;
其中,若接收到所述指示信息,确定需要调整检测机制;
所述确定调整后的检测机制包括:
根据所述基站发送的指示信息确定调整后的检测机制。
可选地,所述指示信息包含在第一下行控制信息中,其中,所述第一下行控制信息还用于向所述终端指示其他信息。
可选地,所述指示信息包含在第二下行控制信息中,其中,所述第二下行控制信息专门向所述终端指示检测机制。
可选地,所述指示信息为加扰序列,其中,根据所述基站发送的指示信息确定调整后的检测机制包括:
根据所述加扰序列和预存的加扰序列与检测机制的关联关系,确定所述加扰序列对应的检测机制为调整后的检测机制。
可选地,所述指示信息用于指示对已确定的检测机制进行更新。
可选地,所述指示信息用于指示检测机制。
可选地,所述确定调整后的检测机制包括:
确定调整后的检测机制的类型,以及调整后的检测机制的参数。
根据本公开实施例的第二方面,提出一种检测非授权频段的装置,适用于终端,所述装置包括:
调整确定模块,被配置为根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制;
机制确定模块,被配置为在需要调整检测机制的情况下,确定调整后的检测机制;
信道检测模块,被配置为根据调整后的检测机制检测非授权频段的信道。
可选地,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔;
所述调整确定模块被配置为,确定所述时间间隔是否大于预设时长;
其中,若所述时间间隔大于预设时长,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的调度指令所调度的上行传输的时域资源;
所述调整确定模块被配置为,确定所述上行传输的时域资源,是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔,以及所述基站发送的调度指令所调度的上行传输的时域资源;
所述调整确定模块被配置为,确定所述时间间隔是否大于预设时长;
若所述时间间隔大于预设时长,确定所述上行传输的时域资源是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的预设导频序列,所述调整确定模块被配置为,确定是否接收到所述预设导频序列;
其中,若接收到所述预设导频序列,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的指示信息,所述调整确定模块被配置为,确定是否接收到所述指示信息;
其中,若接收到所述指示信息,确定需要调整检测机制;
所述机制确定模块,被配置为根据所述基站发送的指示信息确定调整后的检测机制。
可选地,所述指示信息包含在第一下行控制信息中,其中,所述第一下行控制信息还用于向所述终端指示其他信息。
可选地,所述指示信息包含在第二下行控制信息中,其中,所述第二下行控制 信息专门向所述终端指示检测机制。
可选地,所述指示信息为加扰序列,其中所述机制确定模块,被配置为根据所述加扰序列和预存的加扰序列与检测机制的关联关系,确定所述加扰序列对应的检测机制为调整后的检测机制。
可选地,所述指示信息用于指示对已确定的检测机制进行更新。
可选地,所述指示信息用于指示检测机制。
可选地,所述机制确定模块,被配置为确定调整后的检测机制的类型,以及调整后的检测机制的参数。
根据本公开实施例的第三方面,提出一种电子设备,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为实现上述任一实施例所述的检测非授权频段的方法。
根据本公开实施例的第四方面,提出一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现上述任一实施例所述的检测非授权频段的方法中的步骤。
根据本公开的实施例,可以根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制,并在需要调整检测机制,可以确定调整后的检测机制,进而根据调整后的检测机制检测非授权频段的信道。
据此,针对非授权频段的信道的检测机制,不局限于相关技术中由基站通过配置信息来配置的情况,终端可以根据预设通信参数,自主地确定是否需要调整对于非授权频段的信道的检测机制。由于所根据的预设通信参数,终端是可以确定的,所以终端在确定预设通信参数的基础上,相对于基站并不能够精确地确定终端的通信情况,可以在一定程度上确定自身的通信情况,以便确定是否调整检测机制,使得调整后的检测机制更适应自身的通信情况,并且可以一定程度上提高加快占用非授权频段的信道的速度,确保终端的通信过程及时完成。
附图说明
为了更清楚地说明本公开实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是根据本公开的实施例示出的一种检测非授权频段的方法的示意流程图。
图2是一种cat2检测机制的示意图。
图3是一种cat4检测机制的示意图。
图4是相关技术中一种基站为终端配置检测机制的示意图。
图5是根据本公开的实施例示出的另一种检测非授权频段的方法的示意流程图。
图6是根据本公开的实施例示出的一种确定是否需要调整检测机制的示意图。
图7是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。
图8是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。
图9是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。
图10是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。
图11是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。
图12是根据本公开的实施例示出的一种根据基站发送的指示信息确定调整后的检测机制的示意图。
图13是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。
图14是根据本公开的实施例示出的一种检测非授权频段的装置的示意框图。
图15是根据本公开的实施例示出的一种用于检测非授权频段的装置的示意框图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
图1是根据本公开的实施例示出的一种检测非授权频段的方法的示意流程图。本实施例所示的检测非授权频段的方法可以适用于终端,所述终端包括但不限于手机,平板电脑,可穿戴设备等电子设备,所述终端可以作为用户设备与基站通信,并且可以通过授权频段(例如运营商网络的频段)与基站通信,也可以通过非授权频段(例如Wi-Fi网络的频段)与基站通信。
如图1所示,所述检测非授权频段的方法,可以包括以下步骤:
在步骤S1中,根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制;
在步骤S2中,若需要调整检测机制,确定调整后的检测机制;
在步骤S3中,根据调整后的检测机制检测非授权频段的信道。
在相关技术中,对于非授权频段的信道的检测机制包括但不限于cat1(无LBT),cat2(无随机避退LBT),cat3(采用固定长度竞争窗口的随机退避LBT)和cat4(采用非固定长度竞争窗口的随机退避LBT),以下主要以cat2和cat4为例,对本公开的实施例进行示例性说明。
图2是一种cat2检测机制的示意图。
如图2所示,基于cat2检测机制,终端与基站通信过程中发送数据的发送端,可以在CCA(Clear Channel Assessment,空闲信道评估)对应的时间内,例如每次CCA对应一个时隙(slot),检测非授权频段的信道是否被占用,并且每次CCA的间隔以及信道占用时间都是固定的。
在图2中,第一次CCA和第三次CCA对非授权频段的信道检测结果为检测空闲,说明非授权频段的信道未被其他设备占用,那么可以在这两次CCA后占用非授权频段的信道来传输数据,第二次CCA对非授权频段的信道检测结果为检测忙碌,说明非授权频段的信道被其他设备占用,那么在这次CCA后不占用非授权频段的信道传输数据。
图3是一种cat4检测机制的示意图。
如图3所示,基于cat4检测机制,可以在0至竞争窗口长度(CWS,Contention Window Size)之间均匀且随机地生成一个回退计数器的计数值N,N介于0和CWS之间。
当CCA检测到非授权频段的信道空闲,计数器的计数值减1,当CCA检测到非授权频段的信道忙碌,计数器的计数值不变,当计数器的计数值为0,那么立即占用非授权频段的信道。
其中的竞争窗口长度CWS是动态值,可以基于某个预设参考资源上发送的数据是否被接收端成功接收,动态地调整CWS,以便根据信道的状态和网络业务负载得到合适的CWS取值,从而在减小发送端之间碰撞和提升信道接入效率之间取得折中。
例如在图3中,发送端第一次向接收端发送数据时,检测信道所采用的CWS为15,计数器的计数值为7,那么在2次CCA检测非授权频段的信道空闲后,4次CCA检测非授权频段的信道忙碌,然后5次CCA检测非授权频段的信道空闲,从而共7次CCA检测非授权频段的信道空闲,计数器的计数值减为0,占用非授权频段的信道向接收端发送数据。
但是接收端未能成功接收到数据,发送端可以在占用非授权频段的信道的期间调整CWS,例如将CWS提高至31,计数器的计数值为20,那么在发送端第二次向接收端发送数据时,在20次CCA检测非授权频段的信道空闲后,占用非授权频段的信道向接收端发送数据。
图4是相关技术中一种基站为终端配置检测机制的示意图。
在相关技术中,对于终端而言,采用何种检测机制,主要是根据基站的配置信息来确定,但是基站为终端配置的检测机制相对固定,并不能够精确地确定终端的通信情况。
例如图4所示,基站在信道占用时间1内向终端发送调度指令,通过该调度指 令调度终端在信道占用时间1以外的某个时域资源上进行上行传输,但是,基站并不知道终端进行上行传输的时域资源是否位于其信道占用时间内,例如在信道占用时间1后,基站还在信道占用时间2占用非授权频段的信道,但是基站在信道占用时间1向终端发送调度指令时,并不知道终端上行传输的时域资源是否位于信道占用时间2内。在这种情况下,基于目前的协议规定,基站只能指示终端使用优先级较低的检测机制(例如cat4,因为需要多次CCA检测空闲,才可占用非授权频段的信道,所需检测时间较长)来检测非授权频段的信道。
但是如图4所示,实际上终端进行上行传输的时域资源位于信道占用时间2内,那么基于目前的协议规定,基站是可以指示终端使用优先级较高的检测机制(例如cat2,因为需要一次CCA检测空闲,就可占用非授权频段的信道,所需检测时间较短)来检测非授权频段的信道,可是基站已经指示了终端使用优先级较低的检测机制来检测非授权频段的信道,这就导致终端未能尽快的占用非授权频段的信道。
在一个实施例中,根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制,其中,预设通信参数可以是与基站通信的预设通信参数,预设通信参数可以是基站预先配置的,也可以是协议预先定义的。
预设通信参数包括但不限于:基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔;基站发送的调度指令所调度的上行传输的时域资源;预设导频序列等。具体有关预设通信参数的示例,在后续实施例中进行说明。
根据本公开的实施例,可以根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制,并在需要调整检测机制,可以确定调整后的检测机制,进而根据调整后的检测机制检测非授权频段的信道。
需要说明的是,本实施例所述的调整检测机制包括但不限于改变之前已经确定的检测机制;在终端之前并没有确定检测机制的情况下,本实施例所述的调整检测机制可以是指为终端指示检测机制。
据此,针对非授权频段的信道的检测机制,不局限于相关技术中由基站通过配置信息来配置的情况,终端可以根据预设通信参数,自主地确定是否需要调整对于非授权频段的信道的检测机制。由于所根据的预设通信参数,终端是可以确定的,所以终端在确定预设通信参数的基础上,相对于基站并不能够精确地确定终端的通信情况,可以在一定程度上确定自身的通信情况,以便确定是否调整检测机制,使得调整后的 检测机制更适应自身的通信情况,并且可以一定程度上提高加快占用非授权频段的信道的速度,确保终端的通信过程及时完成。
图5是根据本公开的实施例示出的另一种检测非授权频段的方法的示意流程图。如图5所示,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔;
所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
在步骤S11中,确定所述时间间隔是否大于预设时长;
其中,若所述时间间隔大于预设时长,确定需要调整检测机制。
在一个实施例中,预设通信参数包括所述基站发送的调度指令的时间信息,与调度指令所调度的时域资源的时间间隔。
由于基站向终端发送调度指令的时间处在基站在非授权频段的信道占用时间内,在信道占用时间内,基站可以向基站发送数据,信令等信息,当该时间间隔大于预设时长,调度指令所调度的时域资源,距离基站在非授权频段的信道占用时间较远,那么在该时域资源附近非授权频段的信道状态,相对基站在非授权频段的信道占用时间非授权频段的信道状态,较大概率已经发生了变化,所以原来的检测机制较大概率不能准确地适用于所述时域资源下非授权频段的信道状态,那么可以调整检测机制,例如将检测机制从cat4调整为cat2。
相应的,若所述时间间隔大于预设时长,那么在该时域资源附近非授权频段的信道状态,相对基站在非授权频段的信道占用时间非授权频段的信道状态,较大概率并未变化,原来的检测机制较大概率能准确地适用于所述时域资源下非授权频段的信道状态,那么可以保持原检测机制。
图6是根据本公开的实施例示出的一种确定是否需要调整检测机制的示意图。
如图6所示,预先配置的在上行传输1和上行传输2对应的时域资源占用非授权频段的信道时,都次用cat4检测机制检测非授权频段的信道,其中,预设时长为5个时隙。
由于调度指令所述调度的上行传输1的时域资源与调度指令的时间信息的时间间隔为4个时隙,调度指令所述调度的上行传输2的时域资源与调度指令的时间信息 的时间间隔为9个时隙,而4个时隙小于5个时隙,9个时隙大于5个时隙,那么当需要在上行传输1对应的时域资源占用非授权频段的信道时,不需要调整检测机制,也即仍保持cat4检测机制检测非授权频段的信道,而当需要在上行传输2对应的时域资源占用非授权频段的信道时,需要调整检测机制,例如可以采用cat2检测机制检测非授权频段的信道。
图7是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。如图7所示,所述预设通信参数包括所述基站发送的调度指令所调度的上行传输的时域资源,所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
在步骤S12中,确定所述上行传输的时域资源,是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
其中,非授权频段当前的信道占用时间外,是指基站与终端最近通信在非授权频段的信道占用时间,既可以是基站占用非授权频段中信道的信道占用时间,也可以是终端占用非授权频段中信道的信道占用时间。
在一个实施例中,预设通信参数包括所述基站发送的调度指令所调度的上行传输的时域资源。
当上行传输的时域资源位于非授权频段当前的信道占用时间外,可以确定终端上行传输对应的时域资源,距离最近一次基站与及终端通信的时间较远,那么在该时域资源附近非授权频段的信道状态,相对基站与及终端通信的时间非授权频段的信道状态,较大概率已经发生了变化,所以原来的检测机制较大概率不能准确地适用于所述时域资源下非授权频段的信道状态,那么可以调整检测机制,例如将检测机制从cat4调整为cat2。
相应的,当上行传输的时域资源位于非授权频段当前的信道占用时间内,那么在该时域资源附近非授权频段的信道状态,相对基站与及终端通信的时间非授权频段的信道状态,较大概率并未变化,原来的检测机制较大概率能准确地适用于所述时域资源下非授权频段的信道状态,那么可以保持原检测机制。
图8是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程 图。如图8所示,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔,以及所述基站发送的调度指令所调度的上行传输的时域资源;
所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
在步骤S13中,确定所述时间间隔是否大于预设时长;
在步骤S14中,若所述时间间隔大于预设时长,确定所述上行传输的时域资源是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
在一个实施例中,可以将图5和图7所示的实施例相结合,先确定所述时间间隔是否大于预设时长,在所述时间间隔大于预设时长的情况下,进一步确定所述上行传输的时域资源是否位于非授权频段当前的信道占用时间外,进而当所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
而对于所述时间间隔小于或等于预设时长的情况,以及上行传输的时域资源位于非授权频段当前的信道占用时间内的情况,可以确定不需要调整检测机制。
据此,可以基于多个条件确定是否需要调整检测机制,由于多个条件能够从更多反面反应终端的通信情况,所以便于终端更为准确地确定是否需要调整检测机制。
图9是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。如图9所示,所述预设通信参数包括所述基站发送的预设导频序列,所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
在步骤S15中,确定是否接收到所述预设导频序列;
其中,若接收到所述预设导频序列,确定需要调整检测机制。
在一个实施例中,预设导频序列可以是用于起到检测信道,纠正频偏等作用,所述预设导频序列可以是现有技术中已有的导频序列,也可以是不同于现有技术中已有导频序列的新导频序列。
图10是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。如图10所示,所述预设通信参数包括所述基站发送的指示信息,所述根据预设通 信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
在步骤S16中,确定是否接收到所述指示信息;
其中,若接收到所述指示信息,确定需要调整检测机制;
所述确定调整后的检测机制包括:
在步骤S21中,根据所述基站发送的指示信息确定调整后的检测机制。
在一个实施例中,可以根据是否接收到基站发送的指示信息来确定是否需要调整检测机制,当接收到基站发送的指示信息,说明基站需要调整检测机制,进而可以根据基站发送的指示信息来确定调整后的检测机制,所述指示信息可以包含在DCI(Downlink Control Information,下行控制信息)中。
可选地,所述指示信息包含在第一下行控制信息中,其中,所述第一下行控制信息还用于向所述终端指示其他信息。
在一个实施例中,指示信息可以包含在第一下行控制信息中,第一下行控制信息可以不是专门用于指示检测机制的下行控制信息,除了指示检测机制,还可以指示其他信息,例如可以通过现有技术中基站向终端发送的,用于指示功率控制的DCI,或指示HARQ(混合自动重传请求,Hybrid Automatic Repeat reQuest)信息的DCI来携带所述指示信息。
可选地,所述指示信息包含在第二下行控制信息中,其中,所述第二下行控制信息专门向所述终端指示检测机制。
在一个实施例中,指示信息可以包含在第二下行控制信息中,第二下行控制信息可以是专门用于指示检测机制的下行控制信信息,可以是不同于现有技术中DCI的新的DCI。
图11是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。如图11所示,所述指示信息为加扰序列,其中,根据所述基站发送的指示信息确定调整后的检测机制包括:
在步骤S22中,根据所述加扰序列和预存的加扰序列与检测机制的关联关系,确定所述加扰序列对应的检测机制为调整后的检测机制。
在一个实施例中,可以预先存储加扰序列与检测机制的关联关系,其中,指示信息可以是CRC(Cyclic Redundancy Check,循环冗余校验)的加扰序列,终端在确 定加扰序列后,可以根据加扰序列和预存的加扰序列与检测机制的关联关系,确定所述加扰序列对应的检测机制为调整后的检测机制。
可选地,所述指示信息用于指示对已确定的检测机制进行更新。
可选地,所述指示信息用于指示检测机制。
在一个实施例中,可以根据基站发送的指示信息确定调整后的检测机制,但是指示信息指示检测机制的方式可以有所不同,例如可以指示终端指示对已确定的检测机制进行更新。也可以在终端接收到所述指示信息之前并没有确定检测机制的情况下,为终端指示检测机制,则终端使用所指示的检测机制进行检测。
其中,终端接收到所述指示信息之前并没有确定检测机制,可以是指在接收到所述指示信息之前,基站没有指示终端采用何种检测机制,也可以是终端在接收到所述指示信息之前,虽然接收到基站的指示信令,但是指示信令指示终端后续告知再终端采用何种检测机制。
图12是根据本公开的实施例示出的一种根据基站发送的指示信息确定调整后的检测机制的示意图。
如图12所示,基站在信道占用时间1可以向终端发送调度指令1,调度指令1携带的指示信息指示终端在需要上行传输时,根据cat4检测机制检测非授权频段的信道(这相当于直接指示调整后检测机制),然后基站在信道占用时间2可以向终端发送指示信令2(该指示信令可以用于对终端进行调度,也可以用于对终端进行控制),指示信令2携带的指示信息指示终端在需要上行传输时,对已确定的检测机制(例如cat4检测机制)调整,例如调整为cat2检测机制,那么终端在进行上行传输时,可以按照cat2检测机制检测非授权频段的信道。
图13是根据本公开的实施例示出的又一种检测非授权频段的方法的示意流程图。如图13所示,所述确定调整后的检测机制包括:
在步骤S23中,确定调整后的检测机制的类型,以及调整后的检测机制的参数。
在一个实施例中,确定调整后的检测机制,包括但不限于确定调整后的检测机制的类型,还可以确定调整后的检测机制的参数,例如通过上述实施例中的指示信息,可以指示检测机制采用何种参数,以cat4检测机制为例,可以指示其中的CWS的值具体为多少。
与前述的检测非授权频段方法的实施例相对应,本公开还提供了检测非授权频段装置的实施例。
图14是根据本公开的实施例示出的一种检测非授权频段的装置的示意框图。本实施例所示的检测非授权频段的装置可以适用于终端,所述终端包括但不限于手机,平板电脑,可穿戴设备等电子设备,所述终端可以作为用户设备与基站通信,并且可以通过授权频段(例如运营商网络的频段)与基站通信,也可以通过非授权频段(例如Wi-Fi网络)与基站通信。
如图14所示,所述检测非授权频段的装置,可以包括
调整确定模块1,被配置为根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制;
机制确定模块2,被配置为在需要调整检测机制的情况下,确定调整后的检测机制;
信道检测模块3,被配置为根据调整后的检测机制检测非授权频段的信道。
可选地,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔;
所述调整确定模块被配置为,确定所述时间间隔是否大于预设时长;
其中,若所述时间间隔大于预设时长,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的调度指令所调度的上行传输的时域资源;
所述调整确定模块被配置为,确定所述上行传输的时域资源,是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔,以及所述基站发送的调度指令所调度的上行传输的时域资源;
所述调整确定模块被配置为,确定所述时间间隔是否大于预设时长;
若所述时间间隔大于预设时长,确定所述上行传输的时域资源是否位于非授权频段当前的信道占用时间外;
其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的预设导频序列,所述调整确定模块被配置为,确定是否接收到所述预设导频序列;
其中,若接收到所述预设导频序列,确定需要调整检测机制。
可选地,所述预设通信参数包括所述基站发送的指示信息,所述调整确定模块被配置为,确定是否接收到所述指示信息;
其中,若接收到所述指示信息,确定需要调整检测机制;
所述机制确定模块,被配置为根据所述基站发送的指示信息确定调整后的检测机制。
可选地,所述指示信息包含在第一下行控制信息中,其中,所述第一下行控制信息还用于向所述终端指示其他信息。
可选地,所述指示信息包含在第二下行控制信息中,其中,所述第二下行控制信息专门向所述终端指示检测机制。
可选地,所述指示信息为加扰序列,其中所述机制确定模块,被配置为根据所述加扰序列和预存的加扰序列与检测机制的关联关系,确定所述加扰序列对应的检测机制为调整后的检测机制。
可选地,所述指示信息用于指示对已确定的检测机制进行更新。
可选地,所述指示信息用于指示检测机制。
可选地所述机制确定模块,被配置为确定调整后的检测机制的类型,以及调整后的检测机制的参数。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在相关方法的实施例中进行了详细描述,此处将不做详细阐述说明。
对于装置实施例而言,由于其基本对应于方法实施例,所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的,其中所述作为分 离部件说明的模块可以是或者也可以不是物理上分开的,作为模块显示的部件可以是或者也可以不是物理模块,即可以位于一个地方,或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。
本公开的实施例还提出一种电子设备,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为实现上述任一实施例所述的检测非授权频段的方法。
本公开的实施例还提出一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现上述任一实施例所述的检测非授权频段的方法中的步骤。
图15是根据本公开的实施例示出的一种用于检测非授权频段的装置1500的示意框图。例如,装置1500可以是移动电话,计算机,数字广播终端,消息收发设备,游戏控制台,平板设备,医疗设备,健身设备,个人数字助理等。
参照图15,装置1500可以包括以下一个或多个组件:处理组件1502,存储器1504,电源组件1506,多媒体组件1508,音频组件1510,输入/输出(I/O)的接口1512,传感器组件1514,以及通信组件1516。
处理组件1502通常控制装置1500的整体操作,诸如与显示,电话呼叫,数据通信,相机操作和记录操作相关联的操作。处理组件1502可以包括一个或多个处理器1520来执行指令,以完成上述的方法的全部或部分步骤。此外,处理组件1502可以包括一个或多个模块,便于处理组件1502和其他组件之间的交互。例如,处理组件1502可以包括多媒体模块,以方便多媒体组件1508和处理组件1502之间的交互。
存储器1504被配置为存储各种类型的数据以支持在装置1500的操作。这些数据的示例包括用于在装置1500上操作的任何应用程序或方法的指令,联系人数据,电话簿数据,消息,图片,视频等。存储器1504可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(SRAM),电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),可编程只读存储器(PROM),只读存储器(ROM),磁存储器,快闪存储器,磁盘或光盘。
电源组件1506为装置1500的各种组件提供电力。电源组件1506可以包括电源管理系统,一个或多个电源,及其他与为装置1500生成、管理和分配电力相关联的组件。
多媒体组件1508包括在所述装置1500和用户之间的提供一个输出接口的屏幕。在一些实施例中,屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板,屏幕可以被实现为触摸屏,以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界,而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中,多媒体组件1508包括一个前置摄像头和/或后置摄像头。当装置1500处于操作模式,如拍摄模式或视频模式时,前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1510被配置为输出和/或输入音频信号。例如,音频组件1510包括一个麦克风(MIC),当装置1500处于操作模式,如呼叫模式、记录模式和语音识别模式时,麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1504或经由通信组件1516发送。在一些实施例中,音频组件1510还包括一个扬声器,用于输出音频信号。
I/O接口1512为处理组件1502和外围接口模块之间提供接口,上述外围接口模块可以是键盘,点击轮,按钮等。这些按钮可包括但不限于:主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1514包括一个或多个传感器,用于为装置1500提供各个方面的状态评估。例如,传感器组件1514可以检测到装置1500的打开/关闭状态,组件的相对定位,例如所述组件为装置1500的显示器和小键盘,传感器组件1514还可以检测装置1500或装置1500一个组件的位置改变,用户与装置1500接触的存在或不存在,装置1500方位或加速/减速和装置1500的温度变化。传感器组件1514可以包括接近传感器,被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1514还可以包括光传感器,如CMOS或CCD图像传感器,用于在成像应用中使用。在一些实施例中,该传感器组件1514还可以包括加速度传感器,陀螺仪传感器,磁传感器,压力传感器或温度传感器。
通信组件1516被配置为便于装置1500和其他设备之间有线或无线方式的通 信。装置1500可以接入基于通信标准的无线网络,如WiFi,2G或3G,4G LTE、5G NR或它们的组合。在一个示例性实施例中,通信组件1516经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中,所述通信组件1516还包括近场通信(NFC)模块,以促进短程通信。例如,在NFC模块可基于射频识别(RFID)技术,红外数据协会(IrDA)技术,超宽带(UWB)技术,蓝牙(BT)技术和其他技术来实现。
在示例性实施例中,装置1500可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现,用于执行上述任一实施例所述的方法。
在示例性实施例中,还提供了一种包括指令的非临时性计算机可读存储介质,例如包括指令的存储器1504,上述指令可由装置1500的处理器1520执行以完成上述方法。例如,所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的公开后,将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本公开实施例所提供的方法和装置进行了详细介绍,本文中应用了具体个例对本公开的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本公开的方法及其核心思想;同时,对于本领域的一般技术人员,依据本公开的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本公开的限制。

Claims (26)

  1. 一种检测非授权频段的方法,其特征在于,适用于终端,所述方法包括:
    根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制;
    若需要调整检测机制,确定调整后的检测机制;
    根据调整后的检测机制检测非授权频段的信道。
  2. 根据权利要求1所述的方法,其特征在于,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔;
    所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
    确定所述时间间隔是否大于预设时长;
    其中,若所述时间间隔大于预设时长,确定需要调整检测机制。
  3. 根据权利要求1所述的方法,其特征在于,所述预设通信参数包括所述基站发送的调度指令所调度的上行传输的时域资源;
    所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
    确定所述上行传输的时域资源,是否位于非授权频段当前的信道占用时间外;
    其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
  4. 根据权利要求2所述的方法,其特征在于,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔,以及所述基站发送的调度指令所调度的上行传输的时域资源;
    所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
    确定所述时间间隔是否大于预设时长;
    若所述时间间隔大于预设时长,确定所述上行传输的时域资源是否位于非授权频段当前的信道占用时间外;
    其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
  5. 根据权利要求1所述的方法,其特征在于,所述预设通信参数包括所述基站发送的预设导频序列,所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
    确定是否接收到所述预设导频序列;
    其中,若接收到所述预设导频序列,确定需要调整检测机制。
  6. 根据权利要求1所述的方法,其特征在于,所述预设通信参数包括所述基站发送的指示信息,所述根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制包括:
    确定是否接收到所述指示信息;
    其中,若接收到所述指示信息,确定需要调整检测机制;
    所述确定调整后的检测机制包括:
    根据所述基站发送的指示信息确定调整后的检测机制。
  7. 根据权利要求6所述的方法,其特征在于,所述指示信息包含在第一下行控制信息中,其中,所述第一下行控制信息还用于向所述终端指示其他信息。
  8. 根据权利要求6所述的方法,其特征在于,所述指示信息包含在第二下行控制信息中,其中,所述第二下行控制信息专门向所述终端指示检测机制。
  9. 根据权利要求6所述的方法,其特征在于,所述指示信息为加扰序列,其中,根据所述基站发送的指示信息确定调整后的检测机制包括:
    根据所述加扰序列和预存的加扰序列与检测机制的关联关系,确定所述加扰序列对应的检测机制为调整后的检测机制。
  10. 根据权利要求6所述的方法,其特征在于,所述指示信息用于指示对已确定的检测机制进行更新。
  11. 根据权利要求6所述的方法,其特征在于,所述指示信息用于指示检测机制。
  12. 根据权利要求1至11中任一项所述的方法,其特征在于,所述确定调整后的检测机制包括:
    确定调整后的检测机制的类型,以及调整后的检测机制的参数。
  13. 一种检测非授权频段的装置,其特征在于,适用于终端,所述装置包括:
    调整确定模块,被配置为根据预设通信参数确定是否需要调整对于非授权频段的信道的检测机制;
    机制确定模块,被配置为在需要调整检测机制的情况下,确定调整后的检测机制;
    信道检测模块,被配置为根据调整后的检测机制检测非授权频段的信道。
  14. 根据权利要求13所述的装置,其特征在于,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔;
    所述调整确定模块被配置为,确定所述时间间隔是否大于预设时长;
    其中,若所述时间间隔大于预设时长,确定需要调整检测机制。
  15. 根据权利要求13所述的装置,其特征在于,所述预设通信参数包括所述基站发送的调度指令所调度的上行传输的时域资源;
    所述调整确定模块被配置为,确定所述上行传输的时域资源,是否位于非授权频段当前的信道占用时间外;
    其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
  16. 根据权利要求14所述的装置,其特征在于,所述预设通信参数包括所述基站发送的调度指令的时间信息,与所述调度指令所调度的时域资源的时间间隔,以及所述基站发送的调度指令所调度的上行传输的时域资源;
    所述调整确定模块被配置为,确定所述时间间隔是否大于预设时长;
    若所述时间间隔大于预设时长,确定所述上行传输的时域资源是否位于非授权频段当前的信道占用时间外;
    其中,若所述上行传输的时域资源位于非授权频段当前的信道占用时间外,确定需要调整检测机制。
  17. 根据权利要求13所述的装置,其特征在于,所述预设通信参数包括所述基站发送的预设导频序列,所述调整确定模块被配置为,确定是否接收到所述预设导频序列;
    其中,若接收到所述预设导频序列,确定需要调整检测机制。
  18. 根据权利要求13所述的装置,其特征在于,所述预设通信参数包括所述基站发送的指示信息,所述调整确定模块被配置为,确定是否接收到所述指示信息;
    其中,若接收到所述指示信息,确定需要调整检测机制;
    所述机制确定模块,被配置为根据所述基站发送的指示信息确定调整后的检测机制。
  19. 根据权利要求18所述的装置,其特征在于,所述指示信息包含在第一下行控制信息中,其中,所述第一下行控制信息还用于向所述终端指示其他信息。
  20. 根据权利要求18所述的装置,其特征在于,所述指示信息包含在第二下行控制信息中,其中,所述第二下行控制信息专门向所述终端指示检测机制。
  21. 根据权利要求18所述的装置,其特征在于,所述指示信息为加扰序列,其中所述机制确定模块,被配置为根据所述加扰序列和预存的加扰序列与检测机制的关联关系,确定所述加扰序列对应的检测机制为调整后的检测机制。
  22. 根据权利要求18所述的装置,其特征在于,所述指示信息用于指示对已确定的检测机制进行更新。
  23. 根据权利要求18所述的装置,其特征在于,所述指示信息用于指示检测机制。
  24. 根据权利要求13至23中任一项所述的装置,其特征在于,所述机制确定模块,被配置为确定调整后的检测机制的类型,以及调整后的检测机制的参数。
  25. 一种电子设备,其特征在于,包括:
    处理器;
    用于存储处理器可执行指令的存储器;
    其中,所述处理器被配置为实现权利要求1至12中任一项所述的检测非授权频段的方法。
  26. 一种计算机可读存储介质,其上存储有计算机程序,其特征在于,该程序被处理器执行时实现权利要求1至12中任一项所述的检测非授权频段的方法中的步骤。
PCT/CN2019/093801 2019-06-28 2019-06-28 检测非授权频段的方法和检测非授权频段的装置 WO2020258273A1 (zh)

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