WO2016161639A1 - 一种信道状态信息的确定方法和设备 - Google Patents

一种信道状态信息的确定方法和设备 Download PDF

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Publication number
WO2016161639A1
WO2016161639A1 PCT/CN2015/076339 CN2015076339W WO2016161639A1 WO 2016161639 A1 WO2016161639 A1 WO 2016161639A1 CN 2015076339 W CN2015076339 W CN 2015076339W WO 2016161639 A1 WO2016161639 A1 WO 2016161639A1
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WIPO (PCT)
Prior art keywords
resource
base station
time
indication information
information
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PCT/CN2015/076339
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English (en)
French (fr)
Inventor
郑娟
闫志宇
***
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/076339 priority Critical patent/WO2016161639A1/zh
Priority to CN201580044249.5A priority patent/CN106664569B/zh
Publication of WO2016161639A1 publication Critical patent/WO2016161639A1/zh

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    • 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
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for determining channel state information.
  • the spectrum is the basis of wireless communication. According to the latest international spectrum white paper published by the Federal Communications Commission (FCC), unlicensed or unlicensed (English) unlicensed spectrum resources are larger than authorized or licensed (English: licensed) spectrum resources.
  • FCC Federal Communications Commission
  • the main technology used on the unlicensed spectrum is wireless fidelity (English: Wireless Fidelity; abbreviation: WiFi), but WiFi technology is in mobility, security, quality of service (English: Quality of Service; abbreviation: QoS)
  • WiFi Wireless Fidelity
  • QoS Quality of Service
  • LTE Long-Term Evolution
  • any device needs to know the license-free spectrum before using the unlicensed spectrum resources.
  • the use of resources For example, the Listening Before (Talk: Abbreviation: LBT) rule, that is, before using the unlicensed spectrum resources, you need to conduct a clear channel assessment (English: Clear Channel Assessment; abbreviation: CCA) to determine the license-free spectrum.
  • LBT Listening Before
  • CCA Clear Channel Assessment
  • the resource is idle or available; after determining that the unlicensed spectrum resource is idle or available, preempting the unlicensed spectrum resource and transmitting the data on the preempted spectrum resource; when the time for occupying the unlicensed spectrum resource reaches a set threshold The unlicensed spectrum resource needs to be released. Before the next use of the unlicensed spectrum resources, it is again determined whether the unlicensed spectrum resources are free or available.
  • LTE devices can realize the interception of unlicensed spectrum resources at any time.
  • how to ensure the transmission efficiency of LTE equipment on the unlicensed spectrum resources becomes a key issue in the opportunistic use of the unlicensed spectrum resources and in the limited time period in which the preempted spectrum resources are used.
  • channel state information (English: Channel State Information; abbreviation: CSI) that matches the preempted unlicensed spectrum resource channel state.
  • the embodiment of the invention provides a method and a device for determining channel state information, which are used to solve the problem of how to accurately determine the CSI and ensure the data transmission efficiency under the premise of the opportunistic use of the license-free spectrum resource.
  • an embodiment of the present invention provides a method for determining channel state information, including:
  • the user equipment UE obtains the indication information, where the indication information is used to indicate that the base station has preempted the first license-free spectrum resource;
  • the UE acquires the indication information, including:
  • the UE receives the indication information that is sent by the base station by using the first unlicensed spectrum resource, where the indication information includes a moment when the base station sends the indication information;
  • the determining, according to the obtained indication information, the reference time point includes:
  • the UE sends the indication by using the base station according to the obtained indication information
  • the moment of the information determine the reference time point, including:
  • the UE determines the time at which the base station sends the indication information as a reference time point.
  • the UE includes the base station, sending the indication The moment of the information, determine the reference time point, including:
  • the acquiring information by the UE includes:
  • the cross-carrier signaling that is sent by the base station by using the licensed spectrum resource and/or the second unlicensed spectrum resource that is preempted, where the cross-carrier signaling includes indication information sent by the base station;
  • the UE obtains the indication information sent by the base station from the received cross-carrier signaling, where the indication information includes a time unit indicated by the base station;
  • the determining, according to the obtained indication information, the reference time point includes:
  • the UE determines a reference time point according to the time unit indicated by the base station included in the obtained indication information.
  • the UE obtains the indication information, including:
  • control information that is sent by the base station by using the first unlicensed spectrum resource, where the control information includes indication information sent by the base station;
  • the indication information sent by the base station, where the indication information includes a time unit indicated by the base station;
  • the determining, according to the obtained indication information, the reference time point includes:
  • the UE determines a reference time point according to the time unit indicated by the base station included in the obtained indication information.
  • the time unit includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the determining, by the UE, the reference resource according to the reference time point includes:
  • the UE corresponding to the time unit including the reference time point according to the reference time point Time domain resources are used as reference resources.
  • the UE may determine the reference resource according to the reference time point in the ninth possible implementation manner of the first aspect of the present disclosure.
  • the UE selects, according to the reference time point, a time domain resource corresponding to a time unit of the reference time point that is smaller than a time unit that sets the first threshold as a reference resource.
  • the UE selects a distance from the reference time point according to the reference time point
  • the time domain resource corresponding to the time unit that is less than the first threshold is used as the reference resource, and includes:
  • the UE selects, according to the reference time point, a time domain resource corresponding to a time unit closest to the reference time point as a reference resource.
  • the method further includes:
  • the UE according to the time domain resource included in the resource information, and the reference time Determine the reference resources by including the corresponding time domain resources, including:
  • the UE selects a time domain resource that satisfies the set condition as a reference resource from the time domain resource corresponding to the reference time point to all the time domain resources included in the time domain resource included in the resource information.
  • the setting condition includes at least one of the following conditions:
  • Condition 1 The distance between the time domain resource included in the resource information meets the set second threshold, and is located after the time domain resource corresponding to the reference time point, and is located in the time domain included in the resource information. Before the resource;
  • Condition 2 a distance between the time domain resource included in the resource information is greater than a distance between the time domain resources corresponding to the reference time point;
  • Condition 3 if the determined number of reference time points is at least two, the time domain resource corresponding to the reference time point whose distance between the time domain resources included in the resource information is less than a set threshold value As a reference resource.
  • the determining, by the UE, the channel state information of the channel corresponding to the first unlicensed spectrum resource, according to the reference resource includes:
  • the UE passes the reference The resource performs measurement to determine channel state information of the channel corresponding to the first unlicensed spectrum resource.
  • the UE determines the first by performing measurement on the reference resource
  • the channel state information of the channel corresponding to the unlicensed spectrum resource including:
  • the UE measures the determined time domain resource and/or the frequency domain resource, and determines channel state information of the unlicensed spectrum resource corresponding channel according to the measurement result.
  • the UE is to the determined time domain resource and/or the frequency domain resource Make measurements, including:
  • the UE performs channel measurement and/or interference measurement on the determined frequency domain resources, respectively.
  • the determining, by the UE, the channel state information of the channel corresponding to the first unlicensed spectrum resource, according to the reference resource includes:
  • the configured The channel state information of the licensed spectrum resource corresponding channel is used as the channel state information of the channel corresponding to the first unlicensed spectrum resource.
  • the channel state information of the unlicensed spectrum resource corresponding to the channel configured by the UE includes:
  • the UE receives the specific signaling sent by the base station, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • an embodiment of the present invention provides a method for determining channel state information, including:
  • the base station sends the indication information to the user equipment UE, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource;
  • the indication information determines a reference time point, and determines a reference resource according to the reference time point, determined according to the reference resource.
  • the base station sends the indication information to the UE, including:
  • the base station sends the indication information to the UE by using the first unlicensed spectrum resource, where the indication information includes a moment when the base station sends the indication information.
  • the base station sends the indication information to the UE, including:
  • the cross-carrier signaling includes indication information sent by the base station,
  • the indication information includes a time unit indicated by the base station.
  • the base station sends the indication information to the UE, including:
  • the base station sends control information to the UE by using the first unlicensed spectrum resource, where the control information includes indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the base station indication The time unit includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the base station sends the indication information to the UE,
  • the method also includes:
  • the base station sends resource information for reporting channel state information to the UE, where the resource information includes a time domain resource.
  • the method further includes:
  • the base station sends specific signaling to the UE, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • an embodiment of the present invention provides a device for determining channel state information, including:
  • An obtaining unit configured to obtain indication information, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource
  • a determining unit configured to determine a reference time point according to the indication information acquired by the acquiring unit, and determine a reference resource according to the reference time point, where the reference resource is used to determine that the base station has preempted
  • the first unlicensed spectrum resource corresponds to a channel state of the channel
  • a sending unit configured to determine, according to the reference resource, channel state information of the channel corresponding to the first unlicensed spectrum resource, and send the determined channel state information to the base station.
  • the acquiring unit is configured to receive, by the base station, indication information that is sent by the base station by using the first unlicensed spectrum resource, where The indication information includes a time when the base station sends the indication information;
  • the determining unit is configured to determine a reference time point according to the time that the indication information acquired by the acquiring unit includes the base station sending the indication information.
  • the determining unit includes, according to the indication information that is acquired by the acquiring unit, The time when the base station sends the indication information, and determines a reference time point, including:
  • the time at which the base station transmits the indication information is determined as a reference time point.
  • the determining unit includes, according to the indication information that is acquired by the acquiring unit, The time when the base station sends the indication information, and determines a reference time point, including:
  • the acquiring unit is specifically configured to receive, by the base station, the licensed spectrum resource and/or the preempted second license-free The cross-carrier signaling sent by the spectrum resource, where the cross-carrier signaling includes indication information sent by the base station;
  • the determining unit is specifically configured to: according to the indication information acquired by the acquiring unit The time unit indicated by the base station is included, and the reference time point is determined.
  • the acquiring unit is configured to receive control information that is sent by the base station by using the first license-free spectrum resource, where The control information includes indication information sent by the base station;
  • the indication information sent by the base station Acquiring, by the received control information, the indication information sent by the base station, where the indication information includes a time unit indicated by the base station;
  • the determining unit is specifically configured to determine a reference time point according to a time unit indicated by the base station included in the indication information acquired by the acquiring unit.
  • the time unit includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the determining unit is configured to: according to the reference time point, a time unit that includes the reference time point The corresponding time domain resource is used as a reference resource.
  • the determining unit is specifically configured to use the reference time according to the seventh possible implementation manner of the third aspect of the present invention. And selecting a time domain resource corresponding to the time unit of the reference time point to be smaller than a time unit for setting the first threshold as a reference resource.
  • the determining unit selects between the reference time point and the reference time point
  • the time domain resource corresponding to the time unit that is smaller than the set first threshold is used as the reference resource, and includes:
  • a time domain resource corresponding to a time unit closest to the reference time point is selected as a reference resource.
  • the acquiring unit is further configured to receive, sent by the base station Resource information for reporting channel state information, where the resource information includes a time domain resource;
  • the determining unit is specifically configured to determine a reference resource according to a time domain resource included in the resource information received by the acquiring unit and a time domain resource corresponding to the reference time point, where The time point corresponding to the time domain resource included in the reference resource lags behind the reference time point.
  • the determining unit is included in the resource information that is received by the acquiring unit
  • the time domain resource and the time domain resource corresponding to the reference time point determine the reference resource, including:
  • a time domain resource that satisfies the set condition is selected as a reference resource from among the time domain resources corresponding to the reference time point to all the time domain resources included between the time domain resources included in the resource information.
  • the setting condition includes at least one of the following conditions:
  • Condition 1 The distance between the time domain resource included in the resource information meets the set second threshold, and is located after the time domain resource corresponding to the reference time point, and is located in the time domain included in the resource information. Before the resource;
  • Condition 2 a distance between the time domain resource included in the resource information is greater than a distance between the time domain resources corresponding to the reference time point;
  • Condition 3 if the determined number of reference time points is at least two, the time domain resource corresponding to the reference time point whose distance between the time domain resources included in the resource information is less than a set threshold value As a reference resource.
  • the sending unit is configured to: a time corresponding to a time domain resource included in the reference resource and a time domain resource included in the resource information When the time difference between the times is less than the third threshold, the channel state information of the channel corresponding to the first unlicensed spectrum resource is determined by measuring the reference resource.
  • the sending unit determines the first exemption by performing measurement on the reference resource
  • the channel state information of the channel corresponding to the licensed spectrum resource including:
  • the sending unit is configured to the determined time domain resource and/or the frequency domain Resources are measured, including:
  • Channel measurement and/or interference measurement are performed separately for the determined frequency domain resources.
  • the sending unit is configured to: the time corresponding to the time domain resource included in the reference resource is corresponding to the time domain resource included in the resource information.
  • the channel state information of the configured unlicensed spectrum resource corresponding channel is used as the channel state information of the first unlicensed spectrum resource corresponding channel.
  • the acquiring unit is further configured to receive the specific signaling sent by the base station, where And the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • an embodiment of the present invention provides a device for determining channel state information, including:
  • a sending unit configured to send the indication information to the user equipment UE, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource;
  • a receiving unit configured to receive channel state information sent by the UE, where the channel state information includes channel state information of the first unlicensed spectrum resource corresponding channel, where the channel state information is received by the UE according to
  • the reference time point is determined, and according to the reference time
  • the inter-point determines a reference resource, which is determined based on the reference resource.
  • the sending unit is configured to send the indication information to the UE by using the first unlicensed spectrum resource,
  • the indication information includes a time when the base station sends the indication information.
  • the sending unit is specifically configured to pass the licensed spectrum resource and/or the second unlicensed spectrum resource that has been preempted Transmitting the cross-carrier signaling to the UE, where the cross-carrier signaling includes indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the sending unit is configured to send, by using the first unlicensed spectrum resource, control information to the UE,
  • the control information includes indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the time unit includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information One:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the sending The unit is further configured to send resource information for reporting channel state information to the UE, where the resource information includes a time domain resource, before sending the indication information to the UE.
  • the sending unit is further used for The UE sends specific signaling, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • an embodiment of the present invention provides a device for determining channel state information, including:
  • a signal receiver configured to obtain indication information, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource
  • a processor configured to determine a reference time point according to the obtained indication information, and determine a reference resource according to the reference time point, where the reference resource is used to determine that the base station has preempted the first a channel state of the channel corresponding to the unlicensed spectrum resource; determining channel state information of the channel corresponding to the first unlicensed spectrum resource according to the reference resource;
  • a signal transmitter configured to send the determined channel state information to the base station.
  • the signal receiver is configured to receive an indication that the base station sends by using the first unlicensed spectrum resource Information, where the indication information includes a time when the base station sends the indication information;
  • the processor is specifically configured to determine a reference time point according to the time when the obtained indication information includes the time when the base station sends the indication information.
  • the processor according to the received indication information, The time at which the information is indicated, and the reference time point is determined, including:
  • the time at which the base station transmits the indication information is determined as a reference time point.
  • the processor according to the received indication information, The time at which the information is indicated, and the reference time point is determined, including:
  • the signal receiver is configured to receive, by the base station, a licensed spectrum resource and/or a preempted The cross-carrier signaling sent by the unlicensed spectrum resource, where the cross-carrier signaling includes indication information sent by the base station;
  • Determining, by the processor, the reference time point according to the obtained indication information including:
  • the signal receiver is configured to receive, by the base station, a control that is sent by using the first unlicensed spectrum resource Information, where the control information includes indication information sent by the base station;
  • the indication information sent by the base station Acquiring, by the received control information, the indication information sent by the base station, where the indication information includes a time unit indicated by the base station;
  • Determining, by the processor, the reference time point according to the obtained indication information including:
  • the time unit indicated by the base station includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the processor may determine the reference according to the reference time point in the eighth possible implementation manner of the fifth aspect of the present invention. Resources, including:
  • a time domain resource corresponding to the time unit including the reference time point is used as a reference resource.
  • the determining, by the processor, the reference resource according to the reference time point including:
  • the processor selects, between the reference time point, according to the reference time point
  • the time domain resource corresponding to the time unit that is smaller than the set first threshold is used as the reference resource, and includes:
  • a time domain resource corresponding to a time unit closest to the reference time point is selected as a reference resource.
  • the signal receiver is further configured to receive, by the base station, resource information for reporting channel state information, where the resource information includes a time domain resource;
  • the processor determines the reference resource, including:
  • a time domain resource that satisfies the set condition is selected as a reference resource from among the time domain resources corresponding to the reference time point to all the time domain resources included between the time domain resources included in the resource information.
  • the setting condition includes at least one of the following conditions:
  • Condition 1 The distance between the time domain resource included in the resource information meets the set second threshold, and is located after the time domain resource corresponding to the reference time point, and is located in the time domain included in the resource information. Before the resource;
  • Condition 2 a distance between the time domain resource included in the resource information is greater than a distance between the time domain resources corresponding to the reference time point;
  • Condition 3 if the determined number of reference time points is at least two, the time domain resource corresponding to the reference time point whose distance between the time domain resources included in the resource information is less than a set threshold value As a reference resource.
  • the determining, by the processor, channel state information of the channel corresponding to the first unlicensed spectrum resource, according to the reference resource includes:
  • the reference resource is measured. And determining channel state information of the channel corresponding to the first unlicensed spectrum resource.
  • the processor determines the first exemption by performing measurement on the reference resource
  • the channel state information of the channel corresponding to the licensed spectrum resource including:
  • the processor pair the determined time domain resource and/or the frequency domain Resources are measured, including:
  • Channel measurement and/or interference measurement are performed separately for the determined frequency domain resources.
  • the determining, by the processor, the channel state information of the channel corresponding to the first unlicensed spectrum resource according to the reference resource including:
  • the unlicensed spectrum resource to be configured when the time difference between the time corresponding to the time domain resource included in the reference resource and the time corresponding to the time domain resource included in the resource information is not less than a third threshold
  • Channel state information of the corresponding channel is used as channel state information of the channel corresponding to the first unlicensed spectrum resource.
  • the channel state information of the unlicensed spectrum resource corresponding to the channel configured by the processor includes:
  • the specific signaling includes at least one of the following signaling forms:
  • an embodiment of the present invention provides a device for determining channel state information, including:
  • a signal transmitter configured to send indication information to the user equipment UE, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource;
  • a signal receiver configured to receive channel state information sent by the UE, where the channel state information includes channel state information of the first unlicensed spectrum resource corresponding channel, where the channel state information is Receiving the indication information to determine a reference time point, and determining a reference resource according to the reference time point, determined according to the reference resource.
  • the signal transmitter is configured to use the first unlicensed spectrum resource to the UE And transmitting the indication information, where the indication information includes a moment when the base station sends the indication information.
  • the signal transmitter is specifically configured to pass the licensed spectrum resource and/or the second unlicensed spectrum that has been preempted
  • the resource sends cross-carrier signaling to the UE, where the cross-carrier signaling includes indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the signal transmitter is configured to send, by using the first unlicensed spectrum resource, control information to the UE.
  • the control information includes indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the base station indication The time unit includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information One:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the signal transmitter is further configured to send resource information for reporting channel state information to the UE, where the resource information includes a time domain resource, before sending the indication information to the UE.
  • the signal transmitter is further used to The UE sends specific signaling, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • the indication information is obtained by the UE, where the indication information is used to indicate that the base station has preempted the first license-free spectrum resource.
  • the UE determines the reference time point according to the indication information sent by the base station in real time, and then determines the reference resource used for measuring the channel state of the channel corresponding to the unlicensed spectrum resource preempted by the base station, so that the determination is made.
  • the reference resource can be flexibly adjusted according to the unlicensed spectrum resources preempted by the base station, so that the UE can accurately determine the channel state information that matches the channel corresponding to the unlicensed spectrum resource, improve the accuracy of channel state information measurement, and effectively ensure the use. Data transfer efficiency of license-free spectrum resources.
  • FIG. 1 is a schematic flowchart diagram of a method for determining channel state information according to the present invention
  • FIG. 2 is a schematic diagram of a start time of a preamble signal when a time that has been preempted to an unlicensed spectrum resource is taken;
  • FIG. 3 is a schematic diagram of an initial transmission timing of a preamble signal
  • FIG. 4 is a schematic diagram of a time frame included in a time unit indicated by the base station as a subframe boundary;
  • FIG. 5 is a schematic diagram of a time included in a time unit indicated by the base station as a symbol boundary;
  • Figure 6 is a schematic diagram of a reference time point
  • FIG. 7 is a schematic diagram of a starting position of a PDCCH
  • FIG. 8 is a schematic structural diagram of a determined reference resource location
  • FIG. 9 is a schematic structural diagram of a determined reference resource location
  • FIG. 10 is a schematic flowchart diagram of a method for determining channel state information according to the present invention.
  • FIG. 11 is a schematic structural diagram of a device for determining channel state information according to the present invention.
  • FIG. 12 is a schematic structural diagram of a device for determining channel state information according to the present invention.
  • FIG. 13 is a schematic structural diagram of a device for determining channel state information according to the present invention.
  • FIG. 14 is a schematic structural diagram of a device for determining channel state information according to the present invention.
  • an embodiment of the present invention provides a method and a device for determining channel state information, where the UE obtains indication information, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource; Determining a reference time point according to the reference information; determining, according to the reference time point, a reference resource, where the reference resource is used to measure a channel state of the preempted first unlicensed spectrum resource corresponding channel; And determining, by the reference resource, channel state information of the channel corresponding to the first unlicensed spectrum resource, and transmitting the determined channel state information to the base station.
  • the UE determines the reference time point according to the indication information sent by the base station in real time, and then determines the reference resource used for measuring the channel state of the channel corresponding to the unlicensed spectrum resource preempted by the base station, so that the determination is made.
  • Reference resources can be preempted by the base station
  • the license-free spectrum resource is flexibly adjusted, so that the UE can accurately determine the channel state information that matches the channel corresponding to the unlicensed spectrum resource, improve the accuracy of channel state information measurement, and effectively ensure the data transmission efficiency of the unlicensed spectrum resource.
  • the measurement of the channel state information in the embodiment of the present invention is used in a wireless communication system, in particular, an LTE system for permitting access to a spectrum resource, that is, a licensed auxiliary access LTE system (English: Licensed-Assisted Access; abbreviation: LAA) LTE system.
  • LAA-LTE system refers to an LTE system that uses licensed spectrum resources and unlicensed spectrum resources through carrier aggregation (English: Carrier Aggregation; CA) or non-CA mode.
  • the main application scenario is to use the licensed spectrum resource and the unlicensed spectrum resource through the CA mode, that is, the licensed spectrum resource or the carrier included in the licensed spectrum resource or the cell working on the licensed spectrum resource is used as the primary serving cell, and the license-free spectrum is to be used.
  • the carrier included in the resource or the unlicensed spectrum resource or the cell working on the unlicensed spectrum resource is used as the secondary serving cell; and the primary serving cell and the secondary serving cell are deployed together, or the non-common base station is deployed, and the primary serving cell and the secondary serving cell There is an ideal return path between them.
  • the embodiment of the present invention is not limited to use in the scenario of the CA mode, and may also be used in other scenarios, for example, a serving cell that is independently deployed on the unlicensed spectrum resource, and the serving cell has the function of providing independent access.
  • a serving cell that operates on licensed spectrum resources is required to assist.
  • the backhaul delay is large, and the information cannot be quickly coordinated between the two serving cells.
  • the licensed spectrum resource or the unlicensed spectrum resource described in the embodiment of the present invention may include one or more carriers.
  • the licensed spectrum resource and the unlicensed spectrum resource are used for carrier aggregation, one or more of the licensed spectrum resources are included.
  • Carrier carrier and unlicensed spectrum resources include one or more carriers for carrier aggregation.
  • the cell described in the embodiment of the present invention may be a cell corresponding to the base station, and the cell may belong to the macro base station, or may belong to the micro base station, for example, a base station corresponding to a small cell (English: Small Cell).
  • the small cell here may further include: a metro cell (English: Metro Cell), a micro cell (English: Mico Cell), a pico cell (English: Pico Cell), a femto cell (English: Femto Cell) Etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the concept of the carrier in the LTE system is the same as that of the cell.
  • the UE accesses one carrier and accesses one cell is equivalent.
  • the concept of the cell is unified.
  • the user equipment may further include a relay relay, and the data communication between the base station and the base station may be regarded as a user equipment.
  • the UE in a general sense is introduced.
  • FIG. 1 is a schematic flowchart diagram of a method for determining channel state information according to the present invention. The method can be as follows.
  • Step 101 The user equipment (English: User Equipment; abbreviation: UE) acquires indication information.
  • the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource.
  • the indication information may be sent by the base station through the unlicensed spectrum resource, and/or sent by the base station through the licensed spectrum resource.
  • the unlicensed spectrum resource used by the base station to send the indication information may be the first unlicensed spectrum resource that has been preempted, or may be the second unlicensed spectrum resource that has been preempted, which is not limited herein.
  • first unlicensed spectrum resource and the second unlicensed spectrum resource are different unlicensed spectrum resources.
  • step 101 the UE obtains indication information, including:
  • the UE receives indication information that is sent by the base station by using the first unlicensed spectrum resource.
  • the indication information includes a time when the base station sends the indication information.
  • the form of the indication information sent by the base station by using the first unlicensed spectrum resource Can contain at least one of the following information:
  • Downlink control information (English: Downlink Control Information; DCI) carried by the physical downlink control channel (English: Physical Downlink Control Channel; abbreviation: PDCCH);
  • the DCI carried by the Enhanced Physical Downlink Control Channel (English: Enhanced Physical Downlink Control Channel; EPDCCH) is enhanced.
  • the UE detects a preamble signal, and obtains indication information from the detected preamble signal.
  • the UE determines whether the indication information is obtained by detecting the preamble signal. That is, if the UE detects that the preamble signal exists, it indicates that the UE acquires the indication information, that is, the base station preempts the first unlicensed spectrum resource; or, if the base station passes the first license-free license
  • the indication information sent by the spectrum resource is in the form of a preamble, and correspondingly, the “initiating the indication information that the UE sends the first unlicensed spectrum resource by the UE” may be understood as “the UE receives the indication” in the embodiment of the present invention.
  • the moment when the indication information includes the base station transmitting the indication information may be understood as "the transmission time of the preamble signal, that is, the base station sends The time of the indication information, where the transmission time of the preamble signal may be any one of the time from the start time of the transmission of the preamble signal to the end time of the transmission of the preamble signal.
  • the UE may obtain the indication information by detecting the signal sequence constituting the preamble signal by detecting the preamble signal to obtain the indication information.
  • the signal sequence of the preamble signal may include, but is not limited to, the following sequence forms: Constant Amplitude Zero Auto Correlation (CAZAC) sequence, binary sequence, m sequence, pseudo random sequence A sequence constituting a reference signal and a ZC (Zadoff-Chu) sequence in the LTE system.
  • CAZAC Constant Amplitude Zero Auto Correlation
  • binary sequence binary sequence
  • m sequence pseudo random sequence
  • ZC Zero Auto Correlation
  • the reference signals in the LTE system may include, but are not limited to, a primary synchronization signal (English: Primary Synchronization Signal; abbreviation: PSS), a secondary synchronization signal (English: Secondary Synchronization Signal; abbreviation: SSS), and a cell-specific reference signal (English: Cell-specific Reference Signal; abbreviated as: CRS), UE-specific reference signal (English: UE-specific Reference Signal) for physical downlink shared channel (English: Physical Downlink Shared Channel; abbreviation: PDSCH), used for enhancement Demodulation reference signal (English: Demodulation Reference Signal; abbreviation: DM-RS), positioning reference signal (English: Positioning Reference Signal; abbreviation: PRS), channel state information reference signal (English: Channel State Information Reference Signal; Abbreviation: CSI-RS), Discovery Reference Signal (English: Discovery Reference Signal; Abbreviation: DRS).
  • a primary synchronization signal English: Primary Synchronization Signal; abbreviation: PSS
  • SSS Secondary Synchro
  • the preamble signal carrying the indication information may occupy an integer number of orthogonal frequency division multiplexing (OFDM) symbols in time, or may occupy a fraction of OFDM symbols in time, or may occupy the setting.
  • a part of the OFDM symbol may also be an integer or fractional OFDM symbol occupying the set OFDM symbol; the preamble signal carrying the indication information is on each OFDM symbol occupied by each of the OFDM symbols occupied by the OFDM symbol, It is also possible to occupy the entire bandwidth of the unlicensed spectrum resource in the frequency domain, or to occupy part of the bandwidth of the unlicensed spectrum resource in the frequency domain, and further, the preamble signal carrying the indication information is on different OFDM symbols occupied by it or The bandwidth of the unlicensed spectrum resources occupied by the frequency domain may be different or different in different frequency OFDM symbols, and is not specifically limited herein.
  • the foregoing set OFDM symbol may include an OFDM symbol with a specific OFDM symbol index, for example, if the OFDM symbol adopts a normal Cyclic Prefix, then there are 14 OFDM symbols in one subframe.
  • the OFDM symbol index may be any one of 0 to 13, corresponding to the first OFDM symbol to the 14th OFDM symbol in one subframe, and the OFDM symbol set at this time refers to the OFDM symbol with the OFDM symbol index #k. Where k can be any integer from 0 to 13.
  • the OFDM symbol may be an OFDM symbol, or may be a plurality of consecutive or discontinuous OFDM symbols, which is not specifically limited herein.
  • the UE may detect the preamble signal, and may also include detecting only a part of the preamble signal.
  • the preamble signal is transmitted in time by using multiple OFDM symbols, and the UE may only detect the signal transmitted by one of the OFDM symbols to determine whether the base station preempts the unlicensed spectrum resource, and if the signal transmitted on the symbol is detected, Then, the base station can be preempted to preempt the unlicensed spectrum resource, and the starting position of the preamble signal transmission can be determined according to the position of the symbol in all OFDM symbols occupied by the preamble signal; further, according to the symbol occupied by the preamble signal The position in all OFDM symbols and the number of OFDM symbols occupied by the preamble signal can determine the end position of the preamble transmission.
  • the UE may obtain the indication information by detecting the signal of the preamble signal on the partial time resource, and further, by detecting the signal sequence constituting the "signal of the preamble signal on the partial time resource" Obtaining the indication information, where the time resource may be an OFDM symbol, a fractional OFDM symbol, or other time units, and is not specifically limited herein.
  • the signal sequence herein is the same as described above, and is not described herein.
  • the preamble signal carrying the indication information may be understood as a preamble signal. If the preamble signal exists, the indication information indicating that the base station has preempted the first unlicensed spectrum resource exists, that is, if the preamble signal exists, the indication information exists.
  • the role of the preamble signal may include at least one of the following: instructing the LTE device to preempt the unlicensed spectrum resource (or indicating that the LTE device can transmit data on the unlicensed spectrum resource), LTE cell identification, frequency coarse synchronization, time Coarse synchronization, frequency fine synchronization, time fine synchronization, CSI measurement, Auto Gain Control (AGC), etc.
  • the preamble signal carrying the indication information may be sent through the first unlicensed spectrum resource. Then, the UE detects the preamble signal, and determines whether the base station preempts the unlicensed spectrum resource by determining whether the preamble signal exists. If the UE detects the preamble signal, it is determined that the base station has preempted the unlicensed spectrum resource; if the UE has not detected the preamble signal, it is determined that the base station has not preempted the unlicensed spectrum resource.
  • the UE If the indication information sent by the base station by using the first unlicensed spectrum resource is DCI, the UE detects the DCI, and obtains the indication information from the detected DCI.
  • the UE when the UE obtains the indication information, it can determine that the base station has seized the opportunity to use the unlicensed spectrum resource.
  • the DCI sent by the first unlicensed spectrum resource may be carried in the PDCCH sent by the first unlicensed spectrum resource, or may be carried in the first unlicensed spectrum resource.
  • the EPDCCH may also be carried in another channel, such as a physical downlink traffic channel (PDSCH); the DCI transmitted by the first unlicensed spectrum resource may be sent at a carrier boundary of a first unlicensed spectrum resource or a subframe boundary of a cell, The transmission can start in the middle of the sub-frame.
  • PDSCH physical downlink traffic channel
  • middle of the subframe refers to a subframe from any position included in the start boundary of the subframe to the end boundary of the subframe.
  • the DCI herein may be located in a common search space, or may be located in a UE-specific search space, may be valid for a UE of a specific user group, or may be valid only for a single UE, or all UEs that can be served by the first cell. effective.
  • the format and/or content of the DCI may be predefined, so that the UE can detect only DCI having a specific format and/or specific content without detecting. All possible DCI formats and / or all possible DCI content.
  • the starting position of the channel transmission carrying the DCI may also be predefined, that is, the starting position of the channel transmission carrying the DCI may be located at a set OFDM symbol boundary.
  • the moment that the indication information includes the base station sending the indication information may include, but is not limited to, the following situations:
  • the first scenario when the base station transmits the preamble signal through the first unlicensed spectrum resource when the first use of the first unlicensed spectrum resource is preempted, the time when the base station sends the preamble signal may be sent by the base station as the indication The moment of information.
  • the time at which the base station sends the preamble signal may be any time included in the start time of transmitting the preamble signal to the end time of transmitting the preamble signal.
  • the time at which the UE detects the preamble signal can also be understood herein as the time at which the base station transmits the preamble signal.
  • FIG. 2 it is a schematic diagram of the time when the first unlicensed spectrum resource has been preempted as the initial transmission time of the preamble signal.
  • the initial transmission time of the preamble signal is as shown in FIG. 3.
  • the base station after preempting the unlicensed spectrum resource, the base station sends a pre-occupied signal from the moment of preemption to the unlicensed spectrum resource to the time of waiting for the transmission of the preamble signal, and the primary role of the pre-occupied signal is to characterize the base station.
  • the license-free spectrum resource is already occupied and can be detected by the user equipment.
  • the main scenario corresponding to the pre-occupied signal is that the starting time of the data transmission on the unlicensed spectrum resource is predefined. For example, the starting time is a subframe boundary, a symbol boundary, and a slot boundary, where the data includes a preamble and a reference. Signal, control channel, data channel, etc.
  • the time at which the base station preempts the unlicensed spectrum resource is arbitrary, that is, it may be any time in a subframe, or may be any time in a symbol, or may be any time in a time slot.
  • the pre-emption signal may be sent within the above time range.
  • the time at which the base station sends the indication information may also be the start time of the actual data transmission by the base station, which is later than the time to seize the opportunity to use the first license-free spectrum resource.
  • the data actually transmitted here may include a PDCCH, a PDSCH, an EPDCCH, and the like.
  • the UE receives cross-carrier signaling sent by the base station through the licensed spectrum resource and/or the second unlicensed spectrum resource that has been preempted.
  • the cross-carrier signaling includes indication information sent by the base station.
  • the UE acquires the indication information sent by the base station from the received cross-carrier signaling.
  • the indication information includes a time unit indicated by the base station.
  • the LTE device (or the base station) can transmit cross-carrier signaling on the unlicensed spectrum resource/permitted spectrum resource when preempting the use of the unlicensed spectrum resource, so that the UE can obtain the cross-carrier signaling by detecting Instructions.
  • the form of the cross-carrier signaling sent by the base station by using the licensed spectrum resource and/or the second unlicensed spectrum resource that has been preempted may include at least one of the following indication information, or the indication information herein may include At least one of the following:
  • time unit indicated by the base station involved includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the data herein may be a reference signal, data carried by the data channel, or may be a preamble signal.
  • the reference signal may be as described above, and is not specifically limited in the embodiment of the present invention.
  • the data channel may be a PDCCH, a PDSCH, an EPDCCH, a physical broadcast channel (English: Physical Multicast Channel; abbreviation: PMCH).
  • the time included in the time unit indicated by the base station may be a subframe boundary, a symbol boundary, or a slot boundary, as shown in FIG. 4, in a time unit indicated by the base station.
  • the included time is a schematic diagram of a subframe boundary; as shown in FIG. 5, a schematic diagram of a time included in a time unit indicated by the base station is a symbol boundary.
  • FIG. 4 and FIG. 5 are an example in which the indication information is transmitted by the licensed spectrum resource, and the same applies to the case where the indication information is transmitted by the second license-free spectrum resource.
  • the main role of the pre-occupied signal is to enable the base station to occupy the channel before the data starts to be transmitted after preempting the unlicensed spectrum resource, where the data may be a reference signal and data carried by the data channel. It can also be a preamble.
  • the UE before detecting the content carried by the cross-carrier signaling, the UE may The data of the first unlicensed spectrum resource is cached first, and then the content of the cross-carrier signaling bearer is detected, and the time unit indicated by the cross-carrier signaling may be located in the buffered data.
  • This method of first post-buffer detection is particularly suitable for scenarios where data of the first unlicensed spectrum resource begins to be transmitted in the middle of the subframe.
  • the UE receives control information that is sent by the base station by using the first unlicensed spectrum resource.
  • the control information includes indication information sent by the base station.
  • the UE acquires the indication information sent by the base station from the received control information.
  • the indication information includes a time unit indicated by the base station.
  • control information here may be DCI or other information, which is not limited herein.
  • time unit indicated by the base station involved includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the time at which the base station performs the data transmission by using the first unlicensed spectrum resource may be any time included in the time T1 to the time T2, where the time T1 may be preempted by the base station to the first
  • the time T2 may correspond to the time when the base station ends the data transmission on the first unlicensed spectrum resource; the time T2 may also correspond to the base station not acquiring the first through the interception.
  • the time corresponding to the maximum time of the first license-exempt spectrum resource may be used.
  • time T2 can correspond (T1+ x milliseconds) corresponding time.
  • the base station when the base station uses the first unlicensed spectrum resource to perform data transmission, the base station may use the first unlicensed spectrum resource after preempting the first unlicensed spectrum resource and ending using the first unlicensed spectrum resource. Any time included in the previous time period, during which the base station does not need to re-listen to obtain the use opportunity of the first unlicensed spectrum resource.
  • the time at which the base station performs data scheduling by using the first unlicensed spectrum resource by the base station may be a start time of the data scheduling of the UE by using the first unlicensed spectrum resource by the base station, for example, a subframe boundary. Orthogonal Frequency Division Multiplexing (OFDM) symbol boundary, slot boundary, and the like.
  • the scheduled data may be PDSCH or the like.
  • the UE before detecting the control information sent by the first license-free spectrum resource, the UE may first cache data of the first license-exempt spectrum resource, and then detect the first license-free license.
  • the control information sent by the spectrum resource, the time unit indicated by the control information sent by the first license-free spectrum resource may be located in the cached data. This method of first post-buffer detection is particularly suitable for scenarios where data of the first unlicensed spectrum resource begins to be transmitted in the middle of the subframe.
  • Step 102 The UE determines a reference time point according to the obtained indication information.
  • the reference time point may be used to describe the time at which the base station transmits data on the first unlicensed spectrum resource after preempting the use of the unlicensed spectrum resource.
  • the UE lays a foundation for determining the accuracy of the channel state information when the data is transmitted for the first unlicensed spectrum resource preempted by the base station by determining the reference time point.
  • step 102 the manner in which the UE determines the reference time point according to the obtained indication information includes but is not limited to:
  • the indication information includes the time when the base station sends the indication information
  • the determining, by the UE, the reference time point according to the obtained indication information including:
  • the time when the UE sends the indication information by the base station is determined as a reference time point.
  • the indication information includes a time when the base station sends the indication information, where the time at which the base station sends the indication information may include, but is not limited to, the following situations:
  • the first case when the base station seizes the opportunity to use the first license-free spectrum resource, The preamble signal is sent on the unlicensed spectrum resource, and the time at which the base station sends the preamble signal may be used as the time when the base station sends the indication information, where the time at which the preamble signal is sent may be the start time of the transmission preamble signal to the transmission preamble Any moment included in the end of the signal.
  • the time at which the UE detects the preamble signal can also be understood herein as the time at which the base station transmits the preamble signal.
  • the time when the base station sends the preamble signal may occupy an integer number of OFDM symbols on the time domain resource, may also occupy a fraction of OFDM symbols, may also occupy a part of the set OFDM symbol, or may be occupied in the set OFDM symbol.
  • the time at which the base station sends the indication information may also be the start time of the actual data transmission by the base station, which is later than the time to seize the opportunity to use the first license-free spectrum resource.
  • the base station preempts the use of the first unlicensed spectrum resource by using energy detection and/or signal analysis, and the base station first sends the pre-occupied signal and then sends the indication information before transmitting the data.
  • the base station after preempting the unlicensed spectrum resource, the base station sends a pre-occupied signal before waiting for the start time of the data transmission from the moment of preemption to the unlicensed spectrum resource, and the main role of the pre-occupied signal is to represent the The base station has occupied the unlicensed spectrum resource and can be detected by the user equipment.
  • the start time of the data transmission is predefined, for example, a subframe boundary, a symbol boundary, and a slot boundary
  • the time at which the base station preempts the unlicensed spectrum resource is arbitrary, that is, Any time in a subframe may be any time within a symbol, or may be any time in a time slot.
  • the base station waits for data transmission after preempting the unlicensed spectrum resource.
  • the pre-emption signal may be transmitted within the above time range.
  • pre-occupied signal may be part of the preamble signal or other signals, which is not limited herein.
  • the time when the base station sends the indication information may be that the base station is preempting the first.
  • the reference time point determined by the UE at the time when the base station sends the indication information includes but is not limited to:
  • the starting time at which the base station actually transmits data when preempting the first unlicensed spectrum resource is the starting time at which the base station actually transmits data when preempting the first unlicensed spectrum resource.
  • the reference time point determined by the time when the UE sends the indication information by the base station may further include: a start time when the base station actually sends data when preempting the first license-free spectrum resource, and an end time of actually sending data. Any moment included in it.
  • the start time of the sent data is related to the sent data feature, for example, if the sent data is a preamble,
  • the start time of the transmitted data may be the start boundary of the OFDM symbol; if the transmitted data is control data and/or service data, the start time of the transmitted data may be the start boundary of the subframe, or may be a time slot. The starting boundary.
  • control data and/or the service data may be: data carried by the PDCCH, data carried by the EPDCCH, data carried by the PDSCH, and data carried by the PMCH.
  • the starting time of sending data may also be adjusted according to the time when the base station preempts the first unlicensed spectrum resource.
  • the time when the base station preempts the first unlicensed spectrum resource is the start boundary of one subframe, and the base station sends the preamble signal before each time the data is sent, the base station sends the preamble signal from the boundary of the subframe, and sends the preamble signal. After the preamble signal ends, control data and/or service data are sent again; or,
  • the time when the base station preempts the first unlicensed spectrum resource is a start boundary of one subframe, and the base station starts from the start boundary of the subframe, simultaneously sends the preamble signal and the control data, or simultaneously sends the preamble signal and the service data, or Simultaneously transmit preamble signals, control data, and service data.
  • the base station may orthogonally transmit the preamble signal, the control data, and the service data by means of frequency division multiplexing, code division multiplexing, or the like.
  • the indication information includes the time when the base station sends the indication information
  • the determining, by the UE, the reference time point according to the obtained indication information including:
  • a correspondence between a preset reference time point and a time when the base station sends the indication information is a predetermined time interval between a reference time point and a time when the base station sends the indication information, that is, The time at which the base station transmits the indication information at a predetermined time interval is used as a reference time point.
  • the reference time point may be a time corresponding to a predefined duration before the time when the base station sends the indication information; or may be a time corresponding to a predefined duration after the time when the base station sends the indication information, where Not limited.
  • the preamble signal occupies 4 OFDM symbols in time, and the UE can determine that the base station preempts the unlicensed spectrum only by detecting the first signal transmitted in the second OFDM symbol, where the first signal is part of the preamble signal.
  • Resources That is to say, at this time, the time at which the base station transmits the indication information detected by the UE may be a time position at which the second OFDM symbol of the 4 OFDM symbols included in the preamble signal is located.
  • the symbol index of the second OFDM symbol indicates that the predefined duration may be 1 OFDM symbol
  • the reference reference time point is before the time when the base station sends the indication information, then the UE may determine the reference time.
  • the point is the first OFDM symbol of the 4 OFDM symbols occupied by the preamble signal; or the predefined duration may be 3 OFDM symbols, and the reference time point is defined by the base station transmitting the indication information.
  • the UE can determine that the reference time point is the time at which the leading position of the preamble signal corresponds in time.
  • the reference time point shown in FIG. 6 may be a time point (including an initial transmission position and an end transmission position of the preamble signal) that can be recognized by any one of the UE from the initial transmission position to the end transmission position of the preamble signal, for example, OFDM symbol boundaries, fractional OFDM symbol boundaries, and the reciprocal of the sampling rate employed in an integer number of LTE systems.
  • the predefined duration may be represented by an integer number of OFDM symbols, or may be represented by using a fractional OFDM symbol, where the number of the fractional OFDM symbols may be one. It can be multiple.
  • determining a reference time point may also be And OFDM symbol boundary, or a fractional OFDM symbol boundary, or a slot boundary or a subframe boundary, which is closest to the time when the base station transmits the indication information before or after the time when the base station sends the indication information, or a subframe boundary or a subframe boundary Time point.
  • determining that the time at which the base station sends the indication information may include the two situations described in the first manner, and details are not described herein again.
  • the indication information includes the time unit indicated by the base station, the determining, by the UE, the reference time point according to the obtained indication information, including:
  • the UE determines a reference time point according to the time unit indicated by the base station included in the obtained indication information.
  • the time unit indicated by the base station includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the time unit indicated by the base station is a time when the base station performs data transmission by using the first unlicensed spectrum resource, as described above, it may be any time included in the time T1 to the time T2.
  • the time T1 may correspond to a start time at which the base station preempts the first unlicensed spectrum resource
  • the time T2 may correspond to a time when the base station ends data transmission on the first unlicensed spectrum resource
  • the time T2 may also be Corresponding to the time when the base station does not need to re-observe to acquire the first unlicensed spectrum resource transmission opportunity, the time corresponding to the maximum time of the first unlicensed spectrum resource may be used.
  • the time at which the base station performs data scheduling by using the first unlicensed spectrum resource by the base station may be a start time of the data scheduling of the UE by using the first unlicensed spectrum resource by the base station, for example, a subframe boundary. Orthogonal Frequency Division Multiplexing (OFDM) symbol boundary, slot boundary, and the like.
  • the scheduled data may be PDSCH or the like.
  • the base station uses the first unlicensed spectrum resource to perform data transmission.
  • the start time is at the subframe boundary, or at the slot boundary, or at a preset OFDM symbol boundary, which effectively reduces the complexity of the UE detecting blindly at the start time of the unlicensed spectrum resource transmission data.
  • the base station uses the first unlicensed spectrum resource to perform data transmission at the start time of the OFDM symbol.
  • the time at which the base station sends the preamble signal by using the first unlicensed spectrum resource may start from a data transmission start position after the preemption to the unlicensed spectrum resource and the time closest to the preemption to the unlicensed spectrum resource ( For example: OFDM symbol boundary), ending at the beginning of the next nearest subframe boundary.
  • time unit indicated by the base station may also be any identifiable time position between the start position of the transmitting preamble signal and the end position of the transmitting preamble signal, and the position that the UE can identify may be an OFDM symbol.
  • the UE may perform the unlicensed spectrum before the indication information.
  • the data that may be transmitted on the resource is buffered, and the indication information may be sent by using at least one of the following resources: a licensed spectrum resource, a second unlicensed spectrum resource that has been preempted, and a first license-free spectrum resource.
  • the UE determines the time position indicated by the DCI carried by the PDCCH as a reference time point by detecting the PDCCH on the unlicensed spectrum resource. Or the UE determines the time position indicated by the DCI carried by the EPDCCH as a reference time point by detecting the EPDCCH on the unlicensed spectrum resource.
  • the time position indicated by the DCI may be the time position occupied by the PDCCH for transmitting the DCI, or may be the time position occupied by the EPDCCH to transmit the DCI, or may be the PDCCH indication. His time position may also be other time positions indicated by the EPDCCH, which is not limited herein.
  • the time position of the PDCCH or EPDCCH on the unlicensed spectrum resource may be preset.
  • the starting position of the PDCCH is at a preset OFDM symbol boundary, or the starting position of the PDCCH is at the boundary of the subframe, or the starting position of the PDCCH is at the boundary of the slot, or the starting position of the PDCCH is in one subframe.
  • a fixed position for example, a fixed position may refer to a time position corresponding to a 1/N subframe length in one subframe, a time position corresponding to a 2/N subframe length in one subframe, and the like.
  • the format of the PDCCH may be predefined, and the UE may detect the PDCCH by combining the starting location of the predefined PDCCH with the format of the predefined PDCCH; if at a predefined location
  • the PDCCH of the predefined format it may be determined that the base station preempts the unlicensed spectrum resource, and determines the starting position of the PDCCH, and uses the determined starting position of the PDCCH as the reference time point.
  • FIG. 7 it is a schematic diagram of the starting position of the PDCCH.
  • Step 103 The UE determines a reference resource according to the reference time point.
  • the reference resource is used to determine a channel state of the channel corresponding to the first unlicensed spectrum resource that the base station has preempted.
  • the UE determines a reference resource according to the reference time point, and the reference resource may be a complete subframe in time.
  • the reference resource may include a time domain resource, and may also include a frequency domain resource, and may also include a code domain resource, which is not limited herein.
  • the manner in which the UE determines the reference resource according to the reference time point includes but is not limited to:
  • the UE selects, according to the reference time point, a time domain resource corresponding to a time unit that meets the first threshold by using a distance between the reference time points as a reference resource.
  • setting the first threshold may be based on the closest distance value determined by the distance between the reference time points, or may be an integer number of OFDM symbols or fractional OFDM symbols, or may be other The form of expression is not limited here.
  • the UE according to the reference time point after the reference time point, the time domain resource corresponding to the time unit closest to the reference time point is used as a reference resource.
  • the UE uses, as the reference resource, a time domain resource corresponding to the time unit including the reference time point according to the reference time point.
  • the time unit referred to herein may be any one of a radio frame, a subframe, a slot, and an OFDM symbol.
  • the determined reference time point is associated with the start time of the first unlicensed spectrum resource for data transmission, or the determined reference time point includes the first unlicensed spectrum resource for starting the data transmission, at the reference time.
  • the base station will use the first unlicensed spectrum resource to perform data transmission with the UE. Then, the time domain resource corresponding to the latest time unit after the reference time point or the time domain resource corresponding to a time unit including the reference time point is used as the reference resource, and the reference resource is ensured to be located at the base station and the UE.
  • the unlicensed spectrum resource is within the time range of data communication, and at the same time, the reference resource is determined according to the principle of the nearest reference time point and the principle including the reference time point, and the UE uses the reference resource to perform the channel corresponding to the first unlicensed spectrum resource.
  • the reference resource is determined according to the principle of the nearest reference time point and the principle including the reference time point, and the UE uses the reference resource to perform the channel corresponding to the first unlicensed spectrum resource.
  • the determined reference resource is mainly described from the perspective of the time domain resource, and the resource occupied by the reference resource in the frequency domain, for example, the first unlicensed spectrum resource in the time domain. All of the corresponding frequency resources in the resource are still partially limited, and are not specifically limited in the embodiment of the present invention.
  • the UE receives resource information sent by the base station for reporting channel state information.
  • the resource information includes a time domain resource.
  • the UE determines the reference resource according to the time domain resource included in the resource information and the time domain resource corresponding to the reference time point.
  • the time domain resource corresponding to the reference time point described herein may be a time domain resource corresponding to a time unit including the reference time point, or may be a time unit corresponding to the latest reference time point.
  • the time domain resources are not specifically limited here.
  • the time unit is the same as the above, and may be any one of a radio frame, a subframe, a time slot, and an OFDM symbol.
  • the time domain resource corresponding to the time unit may be a time domain resource included in the radio frame.
  • the time domain resources included in the frame, the time domain resources included in the time slots, and the time domain resources included in the OFDM symbols are not described herein.
  • the time point corresponding to the time domain resource included in the reference resource lags behind the reference time point. It should be noted that, if the time domain resource included in the reference resource is a time domain resource corresponding to one subframe, the time point corresponding to the time domain resource included in the reference resource may be a start boundary of the subframe to the Any time period between the end boundaries of the subframes; if the time domain resource included in the reference resource is a time domain resource corresponding to the time slot, the time point corresponding to the time domain resource included in the reference resource may be Any time included between a start boundary of the time slot and an end boundary of the time slot; if the time domain resource included in the reference resource is a time domain resource corresponding to multiple OFDM symbols, then the reference resource includes time The time point corresponding to the domain resource may be any time included between the start boundary of the plurality of OFDM symbols and the end boundary of the plurality of OFDM symbols.
  • the time that the UE receives the time domain resource included in the resource information for reporting the channel state information sent by the base station may be within a time range in which the base station preempts the use opportunity of the first license-free spectrum resource, or It is outside the range where the base station does not seize the opportunity to use the first license-free spectrum resource.
  • the time corresponding to the reference resource determined by the UE may be within a time range in which the base station preempts the use opportunity of the first license-free spectrum resource.
  • the time domain resources included in the resource information may be represented by subframes, or may be other representation forms, such as OFDM symbol representation, slot representation, radio frame representation, and the like.
  • the frequency domain resource included in the resource information includes a frequency domain resource corresponding to a frequency position occupied by the UE reporting channel state information, and includes an integer number of consecutive or non-contiguous subcarriers, an integer number of consecutive or non-contiguous resource elements.
  • RE Resource Element
  • the source block (English: Resource Block: RB) and the like are not specifically limited in the embodiment of the present invention.
  • the manner in which the UE receives the resource information for reporting the channel state information sent by the base station may include physical layer signaling, RRC signaling, MAC signaling, and the like.
  • the UE receiving the resource information for reporting the channel state information sent by the base station may be implemented in step 103, or may be implemented before, during or after step 101 or step 102, where No specific restrictions.
  • the UE selects a time domain resource that meets the set condition as a reference resource from a time domain resource corresponding to the reference time point to all time domain resources included in the time domain resource included in the resource information. .
  • time unit in which the time domain resource corresponding to the reference time point is located may be represented by a subframe, for example, a subframe index of a subframe used by a time unit corresponding to the time domain resource corresponding to the reference time point.
  • the time unit of the time domain resource included in the resource information may also be represented by a subframe, for example, the subframe index used by the time unit in which the time domain resource is included in the resource information.
  • n f represents a radio frame index
  • n s represents a slot index
  • the value ranges from 0 to 19.
  • all the time domain resources included between the time domain resource corresponding to the reference time point and the time domain resource included in the resource information may include starting from a subframe with a subframe index of #k to a subframe index.
  • the subframe of #m ends, and all the included subframes contain time domain resources.
  • the setting condition includes at least one of the following conditions:
  • Condition 1 The distance between the time domain resource included in the resource information meets the set second threshold, and is located after the time domain resource corresponding to the reference time point, and is located in the time domain included in the resource information. Before the resource.
  • the second threshold set here may satisfy that the UE determines channel state information from the reference resource to
  • the time required to report the channel state information may be, for example, four subframe lengths, or two subframe lengths.
  • Condition 2 The distance between the time domain resource included in the resource information is greater than the distance between the time domain resources corresponding to the reference time point.
  • Condition 3 if the determined number of reference time points is at least two, the time domain resource corresponding to the reference time point whose distance between the time domain resources included in the resource information is less than a set threshold value As a reference resource.
  • the time domain resource corresponding to the reference time point closest to the time domain resource included in the resource information may be selected as the reference resource.
  • the reference resource is located in a time range of the first unlicensed spectrum resource that the base station has preempted.
  • the reference resource for determining the channel state information is closer to the time domain resource included in the resource information, because the base station can utilize the channel state reported by the UE in the time domain resource included in the resource information.
  • Information, data scheduling for the UE for example, selecting a suitable modulation and coding scheme (English: Modulation Coding Scheme; abbreviation: MCS), so the time domain resource corresponding to the reference time point closest to the time domain resource included in the resource information is used as
  • MCS Modulation Coding Scheme
  • the base station uses the preempted unlicensed spectrum resource for data transmission in a continuous time between time t1 and time t2, and the first reference time point determined by the UE is located in the continuous time; the base station is continuous between time t3 and time t4.
  • the second reference time point determined by the UE is located in the continuous time, and the time domain resource included in the resource information determined by the UE is at time t5, where t1, t2, and t3 are used for data transmission.
  • t4, t5 represents the moment from front to back, root According to the condition 3, the second reference time point determined between the time t3 and the time t4 is closer to the time t5, so the time domain resource corresponding to the second reference time point can be used as the reference resource.
  • the setting of the first threshold, the setting of the second threshold, and the setting of the threshold may be determined according to experimental data, or may be determined according to actual needs, and the implementation manner is not limited herein.
  • Step 104 The UE determines channel state information of the channel corresponding to the first unlicensed spectrum resource according to the reference resource, and sends the determined channel state information to the base station.
  • step 104 when the time difference between the time corresponding to the time domain resource included in the reference resource and the time corresponding to the time domain resource included in the resource information is less than a third threshold, And determining channel state information of the channel corresponding to the first unlicensed spectrum resource by performing measurement on the reference resource.
  • the time domain resource included in the reference resource may be a time domain resource corresponding to a time unit that includes a reference resource, where the time unit is the same as above, and may be a radio frame or a subframe. Any one of a time slot and a OFDM symbol; correspondingly, the time domain resource corresponding to the time unit of the reference resource may be a time domain resource included in the radio frame, a time domain resource included in the subframe, and a time included in the time slot.
  • the time domain resource included in the OFDM symbol, and the time corresponding to the time domain resource included in the reference resource may be represented by at least one of the following: a radio frame index, a subframe index, a slot index, and an OFDM index.
  • the time domain resource included in the resource information may be represented by a subframe, or may be other representation forms, such as: OFDM symbol representation, time slot representation, radio frame representation, etc., corresponding
  • the time corresponding to the time domain resource included in the resource information may be represented by at least one of the following: a subframe index, an OFDM symbol index, a slot index, and a radio frame index.
  • the third threshold may also be represented by at least one of the following: an integer number of subframes, an integer number of OFDMs Symbol, integer time slot, integer number of radio frames, integer countdown of sample rate.
  • the UE determines, according to the reference resource, a time domain resource and a frequency domain resource that are included in the reference resource, where the UE measures the determined time domain resource and/or the frequency domain resource, and Determining the channel state information of the unlicensed spectrum resource corresponding channel according to the measurement result, and determining that the reference domain resource includes the frequency domain resource by using other methods, such as pre-defined, standard protocol specification, physical layer signaling, RRC signaling, The MAC notification and the like make the UE aware.
  • the UE performs channel measurement and/or interference measurement on the determined time domain resources respectively;
  • the UE performs channel measurement and/or interference measurement on the determined frequency domain resources, respectively.
  • the configured The channel state information of the licensed spectrum resource corresponding channel is used as the channel state information of the channel corresponding to the first unlicensed spectrum resource.
  • the channel state information of the channel corresponding to the unlicensed spectrum resource configured by the UE includes:
  • the UE receives the specific signaling sent by the base station.
  • the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the form of the specific signaling includes at least one of the following signaling forms:
  • the specific signaling may also be determined by a standard protocol in a predefined manner, so that the UE determines channel state information of the channel corresponding to the configured unlicensed spectrum resource.
  • the determining, by the UE, the channel state information of the channel corresponding to the unlicensed spectrum resource including:
  • the UE receives the indication information sent by the base station.
  • the indication information includes a channel state of a channel corresponding to the configured unlicensed spectrum resource. information.
  • the time difference between the time corresponding to the time domain resource included in the reference resource and the time corresponding to the time domain resource included in the resource information is not less than a third threshold, Obtaining channel state information of the channel corresponding to the first unlicensed spectrum resource according to the correspondence between the configured reference resource and the channel state information of the unlicensed spectrum resource corresponding channel and the determined reference resource.
  • the base station may configure a plurality of reference resources to correspond to one channel state information, and may also configure one reference resource to correspond to one channel state information, which is not specifically limited herein.
  • the channel state information of the channel corresponding to the first unlicensed spectrum resource may be represented by an index corresponding to the channel state information, for example, by using a channel quality indicator (English: Channel Quality Indicator, abbreviation:
  • the CQI) index indicates that the channel state information of the configured unlicensed spectrum resource corresponding channel may be represented by a specific CQI index in an existing LTE system, for example, CQI index 0, CQI index 1, or other CQI index, optionally
  • the configured CQI index can satisfy that if the base station uses the channel state information corresponding to the configured CQI index to schedule the UE, the data transmission between the base station and the UE, for example, the initial transmission success rate of the downlink data transmission is not lower than a certain one. Threshold, for example 90%.
  • the specific CQI index may also be different from the CQI index supported by the existing LTE system, and may be represented by a specific CQI index, and the UE reports the reference resource and the specific CQI index of the reported resource corresponding to the specific CQI index.
  • the time difference between the resources is not less than the set third threshold.
  • the base station may confirm that the channel state information determined by the reference resource corresponding to the currently reported resource is inaccurate according to the specific CQI index, or the reference resource and the reported resource The time difference between them is not less than the set third threshold.
  • the specific CQI index may be different from the CQI index 0 supported in the existing LTE system, because currently, if the UE reports the CQI index 0, especially when the CQI index 0 is reported to the secondary serving cell, the secondary serving cell is dependent.
  • the base station can determine that the radio link detection (English: Radio Link Monitoring, abbreviated as: RLM) of the secondary serving cell fails.
  • RLM Radio Link Monitoring
  • the base station may misjudge the secondary service cell radio link failure, so Introducing a specific CQI index different from CQI index 0 so that the base station can not only correctly judge Whether the secondary serving cell fails the radio link, and the relationship between the time difference between the reported resource and the reference resource corresponding thereto and the set third threshold may also be determined.
  • the manner in which the UE sends the determined channel state information to the base station includes, but is not limited to, the following manners:
  • the UE periodically reports the determined channel state information.
  • the reference resource is determined in a manner that satisfies the condition 3, and channel state information between the base station and the UE is obtained according to the determined reference resource, as shown in FIG. Schematic diagram of the location of the resource.
  • time resource for reporting the channel state information may be located in the licensed spectrum resource or in the license-free spectrum resource, and is represented by time resource 1, time resource 2, and time resource 3, respectively.
  • the shaded portions labeled "4" and "5" indicate the time position at which the base station preempts the unlicensed spectrum resource, wherein the resources corresponding to the time positions of "4" and "5" include reference resources.
  • the channel state information may be determined according to the reference resource included in the nearest "4" of the time resource 1.
  • the manner in which the channel state information is determined is that the UE can use the time resource "4".
  • the UE may determine the channel state information according to the reference resource included in the nearest “5” of the time resource 2;
  • the UE may also jointly determine channel state information by using reference resources included in “4” and “5”, for example, averaging measurement results (eg, interference I) of reference resources corresponding to “4” and “5”.
  • averaging measurement results eg, interference I
  • the UE When the UE reports the channel state information on the time resource 3, the time interval between the time resource "5" and the time resource "3" closest to the time resource 3 exceeds the third threshold. At this time, the UE may report on the time resource 3. A configured channel state information.
  • the UE indicates that the channel state information is obtained according to the reference resource measurement, and the determined channel state information is reported, because the channel state information is based on the reference resource and the reported resource.
  • the time interval is too long, and the reported channel state information cannot reflect the channel state between the base station and the UE on the unlicensed spectrum after the reporting of the resource. Therefore, in order to save the operation of the UE, in this case, the UE may not perform the channel state. The information is measured, and the configured channel state information is directly reported.
  • the UE may perform channel and/or interference measurement according to the reference resource included in "7" as described in FIG. 9, and determine channel state information to be reported in the reporting resource 6.
  • the channel state information reported by the UE in the time series may have some connection, for example, the UE calculates the CQI according to the RI or the PMI. Then, the channel state information reported by the UE on the reporting resource 6 may be related to the channel state information of the previous configuration, or may be irrelevant.
  • the rank indication (English: Rank Indication; RI) reported by the reporting resource 3 is configured channel state information, and the UE reports the reported resource 6 at this time.
  • the precoding matrix indication (English: Precoding Matrix Indicator: PMI) and/or CQI may be calculated based on the configured RI reported by the reporting resource 3, or may be recalculated based on the reference resource included in the “7”, and based on The recalculated RI calculates PMI and/or CQI information.
  • PMI Precoding Matrix Indicator
  • the UE may report the RI recalculated based on the "7", and then report the PMI and/or the CQI to other reported resources after the resource 6 is reported, or the UE may directly refer to the "7".
  • the recalculated channel state information includes PMI, RI, and CQI for reporting. In this manner, if the UE recalculates the channel state information based on the reference resource included in the time resource "7", the channel state corresponding to the reference resource included in the time resource "5" is not utilized. The information also needs to inform the eNB to adopt the above reporting method.
  • the UE reports the determined channel state information aperiodically.
  • the specific manner in which the UE periodically reports the channel state information is similar to the specific manner in which the channel state information is periodically reported.
  • the base station may configure the UE to have multiple serving cells through RRC signaling, and the base station may trigger the UE to report the channel measured by the multiple serving cells by using the aperiodic channel state information triggering signaling. status information.
  • the unlicensed spectrum resource is preempted, and for other serving cells indicated in the trigger signaling, due to the random use of the unlicensed spectrum resource, the preemption may not be preempted.
  • the spectrum resource is allowed. Therefore, for other serving cells that do not preempt the unlicensed spectrum resources and are also reported to trigger the channel state information, the UE also needs to determine the channel state information by using the method for determining the reference resource mentioned in the embodiment of the present invention.
  • the UE obtains the indication information, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource; and according to the obtained indication information, the reference time point is determined; according to the reference time And determining a reference resource, where the reference resource is used to measure a channel state of the channel corresponding to the first unlicensed spectrum resource that has been preempted; and determining, according to the reference resource, a channel of the channel corresponding to the first unlicensed spectrum resource Status information, and the determined channel state information is sent to the base station.
  • the UE determines the reference time point according to the indication information sent by the base station in real time, and then determines the reference resource used for measuring the channel state of the channel corresponding to the unlicensed spectrum resource preempted by the base station, so that the determination is made.
  • the reference resource can be flexibly adjusted according to the unlicensed spectrum resources preempted by the base station, so that the UE can accurately determine the channel state information that matches the channel corresponding to the unlicensed spectrum resource, improve the accuracy of channel state information measurement, and effectively ensure the use. Data transfer efficiency of license-free spectrum resources.
  • FIG. 10 is a schematic flowchart diagram of a method for determining channel state information according to an embodiment of the present invention.
  • the execution subject of the embodiment of the present invention is a base station, and the method is as follows.
  • Step 1001 The base station sends indication information to the UE.
  • the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource.
  • step 1001 the base station sends the indication information to the UE, including:
  • the base station sends the indication information to the UE by using the first unlicensed spectrum resource, where the indication information includes a moment when the base station sends the indication information.
  • the base station transmits cross-carrier signaling to the UE by granting spectrum resources and/or preempted second unlicensed spectrum resources.
  • the cross-carrier signaling includes indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the base station sends control information to the UE by using the first unlicensed spectrum resource.
  • the control information includes indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the time unit indicated by the base station includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the method before the sending, by the base station, the indication information to the UE, the method further includes:
  • the base station sends resource information for reporting channel state information to the UE, where the resource information includes a time domain resource.
  • Step 1002 The base station receives channel state information sent by the UE.
  • the channel state information includes channel state information of the first unlicensed spectrum resource corresponding channel, where the channel state information is determined by the UE according to the received indication information. And determining a reference resource according to the reference time point, and determining according to the reference resource.
  • step 1002 the method further includes:
  • the base station sends specific signaling to the UE, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • the reference resource may be located after the base station preempts the first unlicensed spectrum resource and releases the first unlicensed spectrum resource.
  • the time-frequency resources included are particularly suitable for determining that the base station uses the first unlicensed spectrum to be a corresponding CSI.
  • FIG. 11 is a schematic structural diagram of a device for determining channel state information according to an embodiment of the present invention.
  • the determining device includes: an obtaining unit 1101, a determining unit 1102, and a sending unit 1103, where:
  • the obtaining unit 1101 is configured to obtain indication information, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource;
  • a determining unit 1102 configured to determine a reference time point according to the indication information acquired by the acquiring unit 1101; and determine a reference resource according to the reference time point, where the reference resource is used to determine that the base station has been determined Preempting the channel state of the first unlicensed spectrum resource corresponding channel;
  • the sending unit 1103 is configured to determine, according to the reference resource, channel state information of the channel corresponding to the first unlicensed spectrum resource, and send the determined channel state information to the base station.
  • the acquiring unit 1101 is specifically configured to receive indication information that is sent by the base station by using the first unlicensed spectrum resource, where the indication information includes a time when the base station sends the indication information;
  • the determining unit 1102 is specifically configured to determine, according to the time when the indication information acquired by the acquiring unit 1101 includes the indication information sent by the base station, the reference time point.
  • the determining unit 1102 is configured according to the indication acquired by the acquiring unit 1101
  • the information includes the time when the base station sends the indication information, and determines a reference time point, including:
  • the time at which the base station transmits the indication information is determined as a reference time point.
  • the determining unit 1102 according to the time when the indication information acquired by the acquiring unit 1101 includes the time when the base station sends the indication information, determines a reference time point, and includes:
  • the acquiring unit 1101 is specifically configured to receive cross-carrier signaling that is sent by the base station by using the licensed spectrum resource and/or the second unlicensed spectrum resource that is preempted, where the cross-carrier signaling includes the The indication information sent by the base station;
  • the determining unit 1102 is specifically configured to determine a reference time point according to the time unit indicated by the base station included in the indication information acquired by the acquiring unit 1101.
  • the acquiring unit 1101 is specifically configured to receive control information that is sent by the base station by using the first unlicensed spectrum resource, where the control information includes indication information sent by the base station;
  • the indication information sent by the base station Acquiring, by the received control information, the indication information sent by the base station, where the indication information includes a time unit indicated by the base station;
  • the determining unit 1102 is specifically configured to determine a reference time point according to the time unit indicated by the base station included in the indication information acquired by the acquiring unit 1101.
  • the time unit indicated by the base station includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the determining unit 1102 is specifically configured to use, according to the reference time point, a time domain resource corresponding to a time unit that includes the reference time point as a reference resource.
  • the determining unit 1102 is specifically configured to select, according to the reference time point, a time domain resource corresponding to a time unit that is smaller than a first time threshold by using the reference time point as a reference resource.
  • the determining unit 1102 according to the reference time point, selecting a time domain resource corresponding to a time unit that is less than a time unit of the first time threshold as the reference resource, includes:
  • a time domain resource corresponding to a time unit closest to the reference time point is selected as a reference resource.
  • the acquiring unit 1101 is further configured to receive, by the base station, resource information, used to report channel state information, where the resource information includes a time domain resource;
  • the determining unit 1102 is specifically configured to determine a reference resource according to the time domain resource included in the resource information received by the acquiring unit and the time domain resource corresponding to the reference time point, where the reference resource is The time point corresponding to the included time domain resource lags behind the reference time point.
  • the determining unit 1102 determines the reference resource according to the time domain resource included in the resource information received by the acquiring unit and the time domain resource corresponding to the reference time point, and includes:
  • a time domain resource that satisfies the set condition is selected as a reference resource from among the time domain resources corresponding to the reference time point to all the time domain resources included between the time domain resources included in the resource information.
  • the setting condition includes at least one of the following conditions:
  • Condition 1 The distance between the time domain resource included in the resource information meets the set second threshold, and is located after the time domain resource corresponding to the reference time point, and is located in the time domain included in the resource information. Before the resource;
  • Condition 2 a distance between the time domain resource included in the resource information is greater than a distance between the time domain resources corresponding to the reference time point;
  • Condition 3 if the determined number of reference time points is at least two, the time domain corresponding to the reference time point whose distance between the time domain resources included in the resource information is less than a set threshold value The source is used as a reference resource.
  • the sending unit 1103 is specifically configured to: when a time difference between a time corresponding to the time domain resource included in the reference resource and a time corresponding to the time domain resource included in the resource information is smaller than a setting And determining the channel state information of the channel corresponding to the first unlicensed spectrum resource by performing measurement on the reference resource.
  • the sending unit 1103 performs measurement on the determined time domain resource and/or the frequency domain resource, including:
  • Channel measurement and/or interference measurement are performed separately for the determined frequency domain resources.
  • the sending unit 1103 is specifically configured to: when a time difference between a time corresponding to the time domain resource included in the reference resource and a time corresponding to the time domain resource included in the resource information is not less than a setting When the third threshold is used, the channel state information of the configured unlicensed spectrum resource corresponding channel is used as the channel state information of the first unlicensed spectrum resource corresponding channel.
  • the acquiring unit 1101 is further configured to receive the specific signaling sent by the base station, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • the determining device in the embodiment of the present invention may be a user device, or may be another terminal device, or may be a logical component in the user device; may be implemented by software, or may be implemented by hardware. There is no limit here.
  • FIG. 12 is a schematic structural diagram of a device for determining channel state information according to an embodiment of the present invention.
  • the determining device includes: a sending unit 1201 and a receiving unit 1202, where:
  • the sending unit 1201 is configured to send the indication information to the user equipment UE, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource;
  • the receiving unit 1202 is configured to receive channel state information that is sent by the UE, where the channel state information includes channel state information of the first unlicensed spectrum resource corresponding channel, where the channel state information is Receiving the indication information to determine a reference time point, and determining a reference resource according to the reference time point, determined according to the reference resource.
  • the sending unit 1201 is specifically configured to send the indication information to the UE by using the first unlicensed spectrum resource, where the indication information includes a moment when the base station sends the indication information.
  • the sending unit 1201 is specifically configured to send cross-carrier signaling to the UE by using a licensed spectrum resource and/or a pre-empted second unlicensed spectrum resource, where the cross-carrier signaling includes The indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the sending unit 1201 is configured to send, by using the first unlicensed spectrum resource, control information to the UE, where the control information includes indication information sent by the base station, where the indication information is included.
  • the control information includes indication information sent by the base station, where the indication information is included.
  • a time unit indicated by the base station is included.
  • the time unit indicated by the base station includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the sending unit 1201 is further configured to: before sending the indication information to the UE, send resource information for reporting channel state information to the UE, where the resource information includes a time domain resource.
  • the sending unit 1201 is further configured to send specific signaling to the UE, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • the determining device in the embodiment of the present invention may be a base station device, or may be a logical component in the base station device, and may be implemented in a software manner or in a hardware manner, which is not limited herein.
  • FIG. 13 is a schematic structural diagram of a device for determining channel state information according to an embodiment of the present invention.
  • the determining device includes a signal receiver 1301, a processor 1302, and a signal transmitter 1303, wherein the signal receiver 1301, the processor 1302, and the signal transmitter 1303 can be connected through a communication bus 1304.
  • the signal receiver 1301 is configured to obtain indication information, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource;
  • the processor 1302 is configured to determine, according to the obtained indication information, a reference time point, and determine, according to the reference time point, a reference resource, where the reference resource is used to determine that the base station has preempted the And determining, by the first unlicensed spectrum resource, a channel state of the channel; determining, according to the reference resource, channel state information of the channel corresponding to the first unlicensed spectrum resource;
  • the signal transmitter 1303 is configured to send the determined channel state information to the base station.
  • the signal receiver 1301 is specifically configured to receive indication information that is sent by the base station by using the first unlicensed spectrum resource, where the indication information includes a time when the base station sends the indication information.
  • the processor 1302 is specifically configured to determine a reference time point according to the time that the obtained indication information includes the time when the base station sends the indication information.
  • the determining, by the processor 1302, the reference time point according to the obtained indication information, where the base station sends the indication information includes:
  • the time at which the base station transmits the indication information is determined as a reference time point.
  • the processor 1302 includes the base station according to the obtained indication information.
  • the reference time point is determined, including:
  • the signal receiver 1301 is specifically configured to receive cross-carrier signaling sent by the base station by using a licensed spectrum resource and/or a second unlicensed spectrum resource that has been preempted, where the cross-carrier signaling is used. Including indication information sent by the base station;
  • the determining, by the processor 1302, the reference time point according to the obtained indication information including:
  • the signal receiver 1301 is configured to receive control information that is sent by the base station by using the first unlicensed spectrum resource, where the control information includes indication information sent by the base station;
  • the indication information sent by the base station Acquiring, by the received control information, the indication information sent by the base station, where the indication information includes a time unit indicated by the base station;
  • the determining, by the processor 1302, the reference time point according to the obtained indication information including:
  • the time unit indicated by the base station includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the determining, by the processor 1302, the reference resource according to the reference time point including:
  • a time domain resource corresponding to the time unit including the reference time point is used as a reference resource.
  • the determining, by the processor 1302, the reference resource according to the reference time point including:
  • the processor 1302 selects a time domain resource corresponding to a time unit that is less than a time unit of the first threshold by using the reference time point as a reference resource, and includes:
  • a time domain resource corresponding to a time unit closest to the reference time point is selected as a reference resource.
  • the signal receiver 1301 is further configured to receive, by the base station, resource information, used to report channel state information, where the resource information includes a time domain resource;
  • the determining, by the processor 1302, the reference resource according to the reference time point specifically includes:
  • the processor 1302 determines the reference resource according to the time domain resource included in the resource information and the time domain resource corresponding to the reference time point, including:
  • a time domain resource that satisfies the set condition is selected as a reference resource from among the time domain resources corresponding to the reference time point to all the time domain resources included between the time domain resources included in the resource information.
  • the setting condition includes at least one of the following conditions:
  • Condition 1 The distance between the time domain resource included in the resource information meets the set second threshold, and is located after the time domain resource corresponding to the reference time point, and is located in the time domain included in the resource information. Before the resource;
  • Condition 2 a distance between the time domain resource included in the resource information is greater than a distance between the time domain resources corresponding to the reference time point;
  • Condition three if the determined number of reference time points is at least two, and the resource information The time domain resource corresponding to the reference time point in which the distance between the time domain resources included in the time domain resource is less than the set threshold value is used as a reference resource.
  • the determining, by the processor 1302, the channel state information of the channel corresponding to the first unlicensed spectrum resource according to the reference resource including:
  • the reference resource is measured. And determining channel state information of the channel corresponding to the first unlicensed spectrum resource.
  • the determining, by the processor 1302, the channel state information of the channel corresponding to the first unlicensed spectrum resource by performing measurement on the reference resource including:
  • the processor 1302 measures the determined time domain resource and/or the frequency domain resource, including:
  • Channel measurement and/or interference measurement are performed separately for the determined frequency domain resources.
  • the determining, by the processor 1302, the channel state information of the channel corresponding to the first unlicensed spectrum resource according to the reference resource including:
  • the unlicensed spectrum resource to be configured when the time difference between the time corresponding to the time domain resource included in the reference resource and the time corresponding to the time domain resource included in the resource information is not less than a third threshold
  • Channel state information of the corresponding channel is used as channel state information of the channel corresponding to the first unlicensed spectrum resource.
  • the channel state information of the unlicensed spectrum resource corresponding to the channel configured by the processor 1302 includes:
  • the specific signaling includes at least one of the following signaling forms:
  • the processor 1302 may be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.
  • CPU general purpose central processing unit
  • ASIC application-specific integrated circuit
  • FIG. 14 is a schematic structural diagram of a device for determining channel state information according to an embodiment of the present invention.
  • the determining device may include a signal transmitter 1401 and a signal receiver 1402, wherein the signal transmitter 1401 and the signal receiver 1402 communicate via a communication bus.
  • the signal transmitter 1401 is configured to send indication information to the user equipment UE, where the indication information is used to indicate that the base station has preempted the first unlicensed spectrum resource;
  • the signal receiver 1402 is configured to receive channel state information that is sent by the UE, where the channel state information includes channel state information of the first unlicensed spectrum resource corresponding channel, where the channel state information is the UE Determining a reference time point according to the received indication information, and determining a reference resource according to the reference time point, and determining according to the reference resource.
  • the signal transmitter 1401 is configured to send the indication information to the UE by using the first unlicensed spectrum resource, where the indication information includes a moment when the base station sends the indication information.
  • the signal transmitter 1401 is specifically configured to send cross-carrier signaling to the UE by using licensed spectrum resources and/or preempted second unlicensed spectrum resources, where the cross-carrier signaling includes The indication information sent by the base station, where the indication information includes a time unit indicated by the base station.
  • the signal transmitter 1401 is configured to send, by using the first unlicensed spectrum resource, control information to the UE, where the control information includes indication information sent by the base station, where the indication information is The time unit indicated by the base station is included.
  • the time unit indicated by the base station includes at least one of the following information:
  • the time when the base station performs data scheduling by the UE by using the first unlicensed spectrum resource is not limited to the first unlicensed spectrum resource.
  • the indication information includes at least one of the following information:
  • the downlink control information DCI carried by the physical downlink control channel EPDCCH is enhanced.
  • the signal transmitter 1401 is further configured to send resource information for reporting channel state information to the UE, where the resource information includes a time domain resource, before sending the indication information to the UE.
  • the signal transmitter 1401 is further configured to send specific signaling to the UE, where the specific signaling includes channel state information of the configured unlicensed spectrum resource corresponding channel.
  • the specific signaling includes at least one of the following signaling forms:
  • the determining device provided in this embodiment can solve the problem of determining the channel state information accuracy of the channel corresponding to the unlicensed spectrum resource in the scenario of the use of the license-free spectrum resource in the prior art.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a bootable computer or other programmable data processing device.
  • a computer readable memory that operates in a particular manner, causing instructions stored in the computer readable memory to produce an article of manufacture comprising an instruction device implemented in one or more flows and/or block diagrams of the flowchart The function specified in the box or in multiple boxes.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明公开了一种信道状态信息的确定方法和设备,包括:UE获取指示信息;根据获取到的所述指示信息,确定参考时间点;根据所述参考时间点,确定参考资源;根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。这样,在免许可频谱资源机会使用的情况下,UE实时根据基站发送的指示信息确定参考时间点,确定用于测量基站抢占到的免许可频谱资源对应信道的信道状态的参考资源,使得确定的参考资源可以根据基站抢占到的免许可频谱资源灵活调整,提升了信道状态信息测量的精度,有效的保证使用免许可频谱资源的数据传输效率。

Description

一种信道状态信息的确定方法和设备 技术领域
本发明涉及无线通信技术领域,尤其涉及一种信道状态信息的确定方法和设备。
背景技术
频谱是无线通信的基础。根据联邦通讯委员会(英文:Federal Communications Commission;缩写:FCC)最新发布的国际频谱***,未授权或免许可(英文:unlicensed)频谱资源要大于授权或许可(英文:licensed)频谱资源。
目前,免许可频谱上使用的主要技术是无线保真(英文:Wireless Fidelity;缩写:WiFi),但是,WiFi技术在移动性、安全性、服务质量(英文:Quality of Service;缩写:QoS)以及同时处理多用户调度方面存在缺陷,因此,将长期演进(英文:Long-Term Evolution;缩写:LTE)设备应用在免许可频谱上,不仅可以有效利用免许可频谱资源,还可以提供更为有效的无线接入,满足日益增长的移动带宽服务的需求。
由于免许可频谱可以被多种无线通信***和/或被多个运营商占用,为了保证在使用免许可频谱资源时的公平性,任何设备在使用免许可频谱资源之前,需要预先获知免许可频谱资源的使用情况。例如:先听后说(英文:Listen Before Talk;缩写:LBT)规则,即在使用免许可频谱资源之前,需要先进行空闲信道评估(英文:Clear Channel Assessment;缩写:CCA),判断免许可频谱资源是否空闲或者是否可用;在确定免许可频谱资源空闲或者可用之后,抢占该免许可频谱资源并在抢占的该免许可频谱资源上发送数据;当占用该免许可频谱资源的时间到达设定阈值时,需要释放该免许可频谱资源。在下一次需要使用免许可频谱资源之前,再次判断免许可频谱资源是否空闲或者是否可用。
为了能够有更多抢占免许可频谱资源的机会,LTE设备可以实现随时对免许可频谱资源进行侦听。但是,这样,在免许可频谱资源机会性使用以及在使用抢占到的免许可频谱资源的有限时间内,如何保证LTE设备在该免许可频谱资源上数据的传输效率成为关键问题。
对于LTE设备,提升数据传输效率的关键之一在于获取与该抢占到的免许可频谱资源信道状态相匹配的信道状态信息(英文:Channel State Information;缩写:CSI)。
由此可见,在免许可频谱资源机会性使用的前提下,如何准确地确定CSI进而保证数据传输效率成为亟需解决的重要问题。
发明内容
本发明实施例提供了一种信道状态信息的确定方法和设备,用于解决在免许可频谱资源机会性使用的前提下,如何准确地确定CSI进而保证数据传输效率的问题。
第一方面,本发明实施例提供了一种信道状态信息的确定方法,包括:
用户设备UE获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
所述UE根据获取到的所述指示信息,确定参考时间点;
所述UE根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;
所述UE根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。
结合本发明第一方面可能的实施方式,在第一方面的第一种可能的实施方式中,UE获取指示信息,包括:
UE接收所述基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻;
所述UE根据获取到的所述指示信息,确定参考时间点,包括:
所述UE根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
结合本发明的第一方面的第一种可能的实施方式,在第一方面的第二种可能的实施方式中,所述UE根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
所述UE将所述基站发送所述指示信息的时刻确定为参考时间点。
结合本发明的第一方面的第一种可能的实施方式,在第一方面的第三种可能的实施方式中,所述UE根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
所述UE根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
结合本发明第一方面可能的实施方式,在第一方面的第四种可能的实施方式中,UE获取指示信息,包括:
UE接收所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
所述UE从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述UE根据获取到的所述指示信息,确定参考时间点,包括:
所述UE根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
结合本发明第一方面可能的实施方式,在第一方面的第五种可能的实施方式中,UE获取指示信息,包括:
UE接收所述基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
所述UE从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述UE根据获取到的所述指示信息,确定参考时间点,包括:
所述UE根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
结合本发明第一方面的第四种可能的实施方式,或者结合本发明第一方面的第五种可能的实施方式,在第一方面的第六种可能的实施方式中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
结合本发明第一方面可能的实施方式,或者结合本发明第一方面的第一种可能的实施方式,或者结合本发明第一方面的第二种可能的实施方式,或者结合本发明第一方面的第三种可能的实施方式,或者结合本发明第一方面的第四种可能的实施方式,或者结合本发明第一方面的第五种可能的实施方式,或者结合本发明第一方面的第六种可能的实施方式,在第一方面的第七种可能的实施方式中,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
结合本发明第一方面可能的实施方式,或者结合本发明第一方面的第一种可能的实施方式,或者结合本发明第一方面的第二种可能的实施方式,或者结合本发明第一方面的第三种可能的实施方式,或者结合本发明第一方面的第四种可能的实施方式,或者结合本发明第一方面的第五种可能的实施方式,或者结合本发明第一方面的第六种可能的实施方式,或者结合本发明第一方面的第七种可能的实施方式,在第一方面的第八种可能的实施方式中,所述UE根据所述参考时间点,确定参考资源,包括:
所述UE根据所述参考时间点,将包含所述参考时间点的时间单元对应的 时域资源作为参考资源。
结合本发明第一方面可能的实施方式,或者结合本发明第一方面的第一种可能的实施方式,或者结合本发明第一方面的第二种可能的实施方式,或者结合本发明第一方面的第三种可能的实施方式,或者结合本发明第一方面的第四种可能的实施方式,或者结合本发明第一方面的第五种可能的实施方式,或者结合本发明第一方面的第六种可能的实施方式,或者结合本发明第一方面的第七种可能的实施方式,在第一方面的第九种可能的实施方式中,所述UE根据所述参考时间点,确定参考资源,包括:
所述UE根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
结合本发明第一方面的第九种可能的实施方式,在第一方面的第十种可能的实施方式中,所述UE根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
所述UE根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
结合本发明第一方面可能的实施方式,或者结合本发明第一方面的第一种可能的实施方式,或者结合本发明第一方面的第二种可能的实施方式,或者结合本发明第一方面的第三种可能的实施方式,或者结合本发明第一方面的第四种可能的实施方式,或者结合本发明第一方面的第五种可能的实施方式,或者结合本发明第一方面的第六种可能的实施方式,或者结合本发明第一方面的第七种可能的实施方式,在第一方面的第十一种可能的实施方式中,所述方法还包括:
所述UE接收所述基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
所述UE根据所述参考时间点,确定参考资源,具体包括:
所述UE根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所述参考资源中包含的时域资源对应的时 间点滞后于所述参考时间点。
结合本发明第一方面的第十一种可能的实施方式,在第一方面的第十二种可能的实施方式中,所述UE根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,包括:
所述UE从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
结合本发明第一方面的第十二种可能的实施方式,在第一方面的第十三种可能的实施方式中,所述设定条件包含以下条件中的至少一个:
条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资源作为参考资源。
结合本发明第一方面的第十一种可能的实施方式,或者结合本发明第一方面的第十二种可能的实施方式,或者结合本发明第一方面的第十三种可能的实施方式,在第一方面的第十四种可能的实施方式中,所述UE根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
结合本发明第一方面的第十四种可能的实施方式,在第一方面的第十五种可能的实施方式中,所述UE通过对所述参考资源进行测量,确定所述第一 免许可频谱资源对应信道的信道状态信息,包括:
所述UE根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
所述UE对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
结合本发明第一方面的第十五种可能的实施方式,在第一方面的第十六种可能的实施方式中,所述UE对确定的所述时域资源和/或所述频域资源进行测量,包括:
所述UE对确定的所述时域资源分别进行信道测量和/或干扰测量;
和/或,
所述UE对确定的所述频域资源分别进行信道测量和/或干扰测量。
结合本发明第一方面的第十一种可能的实施方式,或者结合本发明第一方面的第十二种可能的实施方式,或者结合本发明第一方面的第十三种可能的实施方式,在第一方面的第十七种可能的实施方式中,所述UE根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
结合本发明第一方面的第十七种可能的实施方式,在第一方面的第十八种可能的实施方式中,所述UE配置的免许可频谱资源对应信道的信道状态信息,包括:
所述UE接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
结合本发明第一方面的第十八种可能的实施方式,在第一方面的第十九种可能的实施方式中,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
第二方面,本发明实施例提供了一种信道状态信息的确定方法,包括:
基站向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
所述基站接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
结合本发明第二方面可能的实施方式,在第二方面的第一种可能的实施方式中,基站向UE发送指示信息,包括:
所述基站通过所述第一免许可频谱资源向所述UE发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
结合本发明第二方面可能的实施方式,在第二方面的第二种可能的实施方式中,基站向UE发送指示信息,包括:
所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
结合本发明第二方面可能的实施方式,在第二方面的第三种可能的实施方式中,基站向UE发送指示信息,包括:
所述基站通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
结合本发明第二方面的第二种可能的实施方式,或者结合本发明第二方面的第三种可能的实施方式中,在第二方面的第四种可能的实施方式中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
结合本发明第二方面可能的实施方式,或者结合本发明第二方面的第一 种可能的实施方式,或者结合本发明第二方面的第二种可能的实施方式,或者结合本发明第二方面的第三种可能的实施方式中,或者结合本发明第二方面的第四种可能的实施方式,在第二方面的第五种可能的实施方式中,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
结合本发明第二方面可能的实施方式,或者结合本发明第二方面的第一种可能的实施方式,或者结合本发明第二方面的第二种可能的实施方式,或者结合本发明第二方面的第三种可能的实施方式中,或者结合本发明第二方面的第四种可能的实施方式,在第二方面的第六种可能的实施方式中,基站在向UE发送指示信息之前,所述方法还包括:
所述基站向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
结合本发明第二方面可能的实施方式,或者结合本发明第二方面的第一种可能的实施方式,或者结合本发明第二方面的第二种可能的实施方式,或者结合本发明第二方面的第三种可能的实施方式中,或者结合本发明第二方面的第四种可能的实施方式,在第二方面的第七种可能的实施方式中,所述方法还包括:
所述基站向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
结合本发明第二方面的第七种可能的实施方式,在第二方面的第八种可能的实施方式中,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
第三方面,本发明实施例提供了一种信道状态信息的确定设备,包括:
获取单元,用于获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
确定单元,用于根据所述获取单元获取到的所述指示信息,确定参考时间点;并根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;
发送单元,用于根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。
结合本发明第三方面可能的实施方式,在第三方面的第一种可能的实施方式中,所述获取单元,具体用于接收基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻;
所述确定单元,具体用于根据所述获取单元获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
结合本发明的第三方面的第一种可能的实施方式,在第三方面的第二种可能的实施方式中,所述确定单元根据所述获取单元获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
将所述基站发送所述指示信息的时刻确定为参考时间点。
结合本发明的第三方面的第一种可能的实施方式,在第三方面的第三种可能的实施方式中,所述确定单元根据所述获取单元获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
结合本发明第三方面可能的实施方式,在第三方面的第四种可能的实施方式中,所述获取单元,具体用于接收基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述确定单元,具体用于根据所述获取单元获取到的所述指示信息中包 含的所述基站指示的时间单元,确定参考时间点。
结合本发明第三方面可能的实施方式,在第三方面的第五种可能的实施方式中,所述获取单元,具体用于接收基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述确定单元,具体用于根据所述获取单元获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
结合本发明第三方面的第四种可能的实施方式,或者结合本发明第三方面的第五种可能的实施方式,在第三方面的第六种可能的实施方式中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
结合本发明第三方面可能的实施方式,或者结合本发明第三方面的第一种可能的实施方式,或者结合本发明第三方面的第二种可能的实施方式,或者结合本发明第三方面的第三种可能的实施方式,或者结合本发明第三方面的第四种可能的实施方式,或者结合本发明第三方面的第五种可能的实施方式,或者结合本发明第三方面的第六种可能的实施方式,在第三方面的第七种可能的实施方式中,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
结合本发明第三方面可能的实施方式,或者结合本发明第三方面的第一种可能的实施方式,或者结合本发明第三方面的第二种可能的实施方式,或者结合本发明第三方面的第三种可能的实施方式,或者结合本发明第三方面的第四种可能的实施方式,或者结合本发明第三方面的第五种可能的实施方式,或者结合本发明第三方面的第六种可能的实施方式,或者结合本发明第 三方面的第七种可能的实施方式,在第三方面的第八种可能的实施方式中,所述确定单元,具体用于根据所述参考时间点,将包含所述参考时间点的时间单元对应的时域资源作为参考资源。
结合本发明第三方面可能的实施方式,或者结合本发明第三方面的第一种可能的实施方式,或者结合本发明第三方面的第二种可能的实施方式,或者结合本发明第三方面的第三种可能的实施方式,或者结合本发明第三方面的第四种可能的实施方式,或者结合本发明第三方面的第五种可能的实施方式,或者结合本发明第三方面的第六种可能的实施方式,或者结合本发明第三方面的第七种可能的实施方式,在第三方面的第九种可能的实施方式中,所述确定单元,具体用于根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
结合本发明第三方面的第九种可能的实施方式,在第三方面的第十种可能的实施方式中,所述确定单元根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
结合本发明第三方面可能的实施方式,或者结合本发明第三方面的第一种可能的实施方式,或者结合本发明第三方面的第二种可能的实施方式,或者结合本发明第三方面的第三种可能的实施方式,或者结合本发明第三方面的第四种可能的实施方式,或者结合本发明第三方面的第五种可能的实施方式,或者结合本发明第三方面的第六种可能的实施方式,或者结合本发明第三方面的第七种可能的实施方式,在第三方面的第十一种可能的实施方式中,所述获取单元,还用于接收基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
所述确定单元,具体用于根据所述获取单元接收到的所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所 述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。
结合本发明第三方面的第十一种可能的实施方式,在第三方面的第十二种可能的实施方式中,所述确定单元根据所述获取单元接收到的所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,包括:
从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
结合本发明第三方面的第十二种可能的实施方式,在第三方面的第十三种可能的实施方式中,所述设定条件包含以下条件中的至少一个:
条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资源作为参考资源。
结合本发明第三方面的第十一种可能的实施方式,或者结合本发明第三方面的第十二种可能的实施方式,或者结合本发明第三方面的第十三种可能的实施方式,在第三方面的第十四种可能的实施方式中,所述发送单元,具体用于在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
结合本发明第三方面的第十四种可能的实施方式,在第三方面的第十五种可能的实施方式中,所述发送单元通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
结合本发明第三方面的第十五种可能的实施方式,在第三方面的第十六种可能的实施方式中,所述发送单元对确定的所述时域资源和/或所述频域资源进行测量,包括:
对确定的所述时域资源分别进行信道测量和/或干扰测量;
和/或,
对确定的所述频域资源分别进行信道测量和/或干扰测量。
结合本发明第三方面的第十一种可能的实施方式,或者结合本发明第三方面的第十二种可能的实施方式,或者结合本发明第三方面的第十三种可能的实施方式,在第三方面的第十七种可能的实施方式中,所述发送单元,具体用于在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
结合本发明第三方面的第十七种可能的实施方式,在第三方面的第十八种可能的实施方式中,所述获取单元,还用于接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
结合本发明第三方面的第十八种可能的实施方式,在第三方面的第十九种可能的实施方式中,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
第四方面,本发明实施例提供了一种信道状态信息的确定设备,包括:
发送单元,用于向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
接收单元,用于接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时 间点确定参考资源,根据所述参考资源确定的。
结合本发明第四方面可能的实施方式,在第四方面的第一种可能的实施方式中,所述发送单元,具体用于通过所述第一免许可频谱资源向所述UE发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
结合本发明第四方面可能的实施方式,在第四方面的第二种可能的实施方式中,所述发送单元,具体用于通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
结合本发明第四方面可能的实施方式,在第四方面的第三种可能的实施方式中,所述发送单元,具体用于通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
结合本发明第四方面的第二种可能的实施方式,或者结合本发明第四方面的第三种可能的实施方式中,在第四方面的第四种可能的实施方式中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
结合本发明第四方面可能的实施方式,或者结合本发明第四方面的第一种可能的实施方式,或者结合本发明第四方面的第二种可能的实施方式,或者结合本发明第四方面的第三种可能的实施方式中,或者结合本发明第四方面的第四种可能的实施方式,在第四方面的第五种可能的实施方式中,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
结合本发明第四方面可能的实施方式,或者结合本发明第四方面的第一种可能的实施方式,或者结合本发明第四方面的第二种可能的实施方式,或 者结合本发明第四方面的第三种可能的实施方式中,或者结合本发明第四方面的第四种可能的实施方式,在第四方面的第六种可能的实施方式中,所述发送单元,还用于在向UE发送指示信息之前,向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
结合本发明第四方面可能的实施方式,或者结合本发明第四方面的第一种可能的实施方式,或者结合本发明第四方面的第二种可能的实施方式,或者结合本发明第四方面的第三种可能的实施方式中,或者结合本发明第四方面的第四种可能的实施方式,在第四方面的第七种可能的实施方式中,所述发送单元,还用于向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
结合本发明第四方面的第七种可能的实施方式,在第四方面的第八种可能的实施方式中,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
第五方面,本发明实施例提供了一种信道状态信息的确定设备,包括:
信号接收器,用于获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
处理器,用于根据获取到的所述指示信息,确定参考时间点;并根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息;
信号发射器,用于将确定的所述信道状态信息发送给所述基站。
结合本发明第五方面可能的实施方式,在第五方面的第一种可能的实施方式中,所述信号接收器,具体用于接收所述基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻;
所述处理器,具体用于根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
结合本发明的第五方面的第一种可能的实施方式,在第五方面的第二种可能的实施方式中,所述处理器根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
将所述基站发送所述指示信息的时刻确定为参考时间点。
结合本发明的第五方面的第一种可能的实施方式,在第五方面的第三种可能的实施方式中,所述处理器根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
结合本发明第五方面可能的实施方式,在第五方面的第四种可能的实施方式中,所述信号接收器,具体用于接收所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述处理器根据获取到的所述指示信息,确定参考时间点,包括:
根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
结合本发明第五方面可能的实施方式,在第五方面的第五种可能的实施方式中,所述信号接收器,具体用于接收所述基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述处理器根据获取到的所述指示信息,确定参考时间点,包括:
根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
结合本发明第五方面的第四种可能的实施方式,或者结合本发明第五方 面的第五种可能的实施方式,在第五方面的第六种可能的实施方式中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
结合本发明第五方面可能的实施方式,或者结合本发明第五方面的第一种可能的实施方式,或者结合本发明第五方面的第二种可能的实施方式,或者结合本发明第五方面的第三种可能的实施方式,或者结合本发明第五方面的第四种可能的实施方式,或者结合本发明第五方面的第五种可能的实施方式,或者结合本发明第五方面的第六种可能的实施方式,在第五方面的第七种可能的实施方式中,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
结合本发明第五方面可能的实施方式,或者结合本发明第五方面的第一种可能的实施方式,或者结合本发明第五方面的第二种可能的实施方式,或者结合本发明第五方面的第三种可能的实施方式,或者结合本发明第五方面的第四种可能的实施方式,或者结合本发明第五方面的第五种可能的实施方式,或者结合本发明第五方面的第六种可能的实施方式,或者结合本发明第五方面的第七种可能的实施方式,在第五方面的第八种可能的实施方式中,所述处理器根据所述参考时间点,确定参考资源,包括:
根据所述参考时间点,将包含所述参考时间点的时间单元对应的时域资源作为参考资源。
结合本发明第五方面可能的实施方式,或者结合本发明第五方面的第一种可能的实施方式,或者结合本发明第五方面的第二种可能的实施方式,或者结合本发明第五方面的第三种可能的实施方式,或者结合本发明第五方面的第四种可能的实施方式,或者结合本发明第五方面的第五种可能的实施方式,或者结合本发明第五方面的第六种可能的实施方式,或者结合本发明第 五方面的第七种可能的实施方式,在第五方面的第九种可能的实施方式中,所述处理器根据所述参考时间点,确定参考资源,包括:
根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
结合本发明第五方面的第九种可能的实施方式,在第五方面的第十种可能的实施方式中,所述处理器根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
结合本发明第五方面可能的实施方式,或者结合本发明第五方面的第一种可能的实施方式,或者结合本发明第五方面的第二种可能的实施方式,或者结合本发明第五方面的第三种可能的实施方式,或者结合本发明第五方面的第四种可能的实施方式,或者结合本发明第五方面的第五种可能的实施方式,或者结合本发明第五方面的第六种可能的实施方式,或者结合本发明第五方面的第七种可能的实施方式,在第五方面的第十一种可能的实施方式中,
所述信号接收器,还用于接收所述基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
所述处理器根据所述参考时间点,确定参考资源,具体包括:
根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。
结合本发明第五方面的第十一种可能的实施方式,在第五方面的第十二种可能的实施方式中,所述处理器根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,包括:
从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
结合本发明第五方面的第十二种可能的实施方式,在第五方面的第十三种可能的实施方式中,所述设定条件包含以下条件中的至少一个:
条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资源作为参考资源。
结合本发明第五方面的第十一种可能的实施方式,或者结合本发明第五方面的第十二种可能的实施方式,或者结合本发明第五方面的第十三种可能的实施方式,在第五方面的第十四种可能的实施方式中,所述处理器根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
结合本发明第五方面的第十四种可能的实施方式,在第五方面的第十五种可能的实施方式中,所述处理器通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
结合本发明第五方面的第十五种可能的实施方式,在第五方面的第十六种可能的实施方式中,所述处理器对确定的所述时域资源和/或所述频域资源进行测量,包括:
对确定的所述时域资源分别进行信道测量和/或干扰测量;
和/或,
对确定的所述频域资源分别进行信道测量和/或干扰测量。
结合本发明第五方面的第十一种可能的实施方式,或者结合本发明第五方面的第十二种可能的实施方式,或者结合本发明第五方面的第十三种可能的实施方式,在第五方面的第十七种可能的实施方式中,所述处理器根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
结合本发明第五方面的第十七种可能的实施方式,在第五方面的第十八种可能的实施方式中,所述处理器配置的免许可频谱资源对应信道的信道状态信息,包括:
接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
结合本发明第五方面的第十八种可能的实施方式,在第五方面的第十九种可能的实施方式中,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
第六方面,本发明实施例提供了一种信道状态信息的确定设备,包括:
信号发射器,用于向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
信号接收器,用于接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
结合本发明第六方面可能的实施方式,在第六方面的第一种可能的实施方式中,所述信号发射器,具体用于通过所述第一免许可频谱资源向所述UE 发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
结合本发明第六方面可能的实施方式,在第六方面的第二种可能的实施方式中,所述信号发射器,具体用于通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
结合本发明第六方面可能的实施方式,在第六方面的第三种可能的实施方式中,所述信号发射器,具体用于通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
结合本发明第六方面的第二种可能的实施方式,或者结合本发明第六方面的第三种可能的实施方式中,在第六方面的第四种可能的实施方式中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
结合本发明第六方面可能的实施方式,或者结合本发明第六方面的第一种可能的实施方式,或者结合本发明第六方面的第二种可能的实施方式,或者结合本发明第六方面的第三种可能的实施方式中,或者结合本发明第六方面的第四种可能的实施方式,在第六方面的第五种可能的实施方式中,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
结合本发明第六方面可能的实施方式,或者结合本发明第六方面的第一种可能的实施方式,或者结合本发明第六方面的第二种可能的实施方式,或者结合本发明第六方面的第三种可能的实施方式中,或者结合本发明第六方面的第四种可能的实施方式,在第六方面的第六种可能的实施方式中,所述 信号发射器,还用于在向UE发送指示信息之前,向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
结合本发明第六方面可能的实施方式,或者结合本发明第六方面的第一种可能的实施方式,或者结合本发明第六方面的第二种可能的实施方式,或者结合本发明第六方面的第三种可能的实施方式中,或者结合本发明第六方面的第四种可能的实施方式,在第六方面的第七种可能的实施方式中,所述信号发射器,还用于向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
结合本发明第六方面的第七种可能的实施方式,在第六方面的第八种可能的实施方式中,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
有益效果:
本发明实施例通过UE获取指示信息,所述指示信息用于指示基站已抢占到第一免许可频谱资源。这样,在免许可频谱资源机会使用的情况下,UE实时根据基站发送的指示信息确定参考时间点,进而确定用于测量基站抢占到的免许可频谱资源对应信道的信道状态的参考资源,使得确定的参考资源可以根据基站抢占到的免许可频谱资源灵活调整,使UE准确地确定出与免许可频谱资源对应的信道相匹配的信道状态信息,提升了信道状态信息测量的精度,有效的保证使用免许可频谱资源的数据传输效率。
附图说明
为了更清楚地说明本发明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要介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域的普通技术人员来讲,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为本发明提供的一种信道状态信息的确定方法的流程示意图;
图2为将已抢占到免许可频谱资源的时刻作为前导信号的起始发送时刻的示意图;
图3为前导信号的起始发送时刻示意图;
图4为所述基站指示的时间单元中包含的时刻为子帧边界的示意图;
图5为所述基站指示的时间单元中包含的时刻为符号边界的示意图;
图6为参考时间点的示意图;
图7为PDCCH的起始位置的示意图;
图8为确定的参考资源位置的结构示意图;
图9为确定的参考资源位置的结构示意图;
图10为本发明提供的一种信道状态信息的确定方法的流程示意图;
图11为本发明提供的一种信道状态信息的确定设备的结构示意图;
图12为本发明提供的一种信道状态信息的确定设备的结构示意图;
图13为本发明提供的一种信道状态信息的确定设备的结构示意图;
图14为本发明提供的一种信道状态信息的确定设备的结构示意图。
具体实施方式
为了实现本发明的目的,本发明实施例提供了一种信道状态信息的确定方法和设备,UE获取指示信息,所述指示信息用于指示基站已抢占到第一免许可频谱资源;根据获取到的所述指示信息,确定参考时间点;根据所述参考时间点,确定参考资源,所述参考资源用于测量已抢占到的所述第一免许可频谱资源对应信道的信道状态;根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。
这样,在免许可频谱资源机会使用的情况下,UE实时根据基站发送的指示信息确定参考时间点,进而确定用于测量基站抢占到的免许可频谱资源对应信道的信道状态的参考资源,使得确定的参考资源可以根据基站抢占到的 免许可频谱资源灵活调整,使UE准确地确定出与免许可频谱资源对应的信道相匹配的信道状态信息,提升了信道状态信息测量的精度,有效的保证使用免许可频谱资源的数据传输效率。
本发明实施例所述信道状态信息的测量用于无线通信***,尤其用于许可频谱资源辅助接入的LTE***,即许可辅助接入LTE***(英文:Licensed-Assisted Access;缩写:LAA)LTE***。LAA-LTE***是指将许可频谱资源和免许可频谱资源通过载波聚合(英文:Carrier Aggregation;缩写:CA)方式或者非CA方式在一起使用的LTE***。
例如:主要的应用场景是将许可频谱资源和免许可频谱资源通过CA方式使用,即将许可频谱资源或者许可频谱资源包含的载波或者工作在许可频谱资源上的小区作为主服务小区,将免许可频谱资源或者免许可频谱资源包含的载波或者工作在免许可频谱资源上的小区作为辅服务小区;而主服务小区和辅服务小区共基站部署,或者非共基站部署,主服务小区与辅服务小区之间存在理想回传路径。
本发明实施例也不限于使用在CA方式的场景中,还可以使用在其他场景中,例如:独立部署在免许可频谱资源上的服务小区,该服务小区具备提供独立接入功能,此时不需要工作在许可频谱资源上的服务小区进行辅助。又例如,两个服务小区(主服务小区和辅服务小区)之间没有理想回传路径的场景,比如回传延迟较大,导致两个服务小区之间无法快速的协调信息。
本发明实施例中记载的不管是许可频谱资源还是免许可频谱资源,都可以包含一个或者多个载波,在许可频谱资源和免许可频谱资源进行载波聚合时,由许可频谱资源中包含一个或者多个载波与免许可频谱资源中包含一个或者多个载波进行载波聚合。
本发明实施例中记载的小区可以是基站对应的小区,该小区可以属于宏基站,也可以属于微基站,例如:小小区(英文:Small Cell)对应的基站。这里的小小区又可以包括:城市小区(英文:Metro Cell)、微小区(英文:Mico Cell)、微微小区(英文:Pico Cell)、毫微微小区(英文:Femto Cell) 等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
本发明实施例中,LTE***中的载波与小区的概念等同,比如UE接入一个载波和接入一个小区是等同的,本发明中将统一以小区的概念来介绍。
对用户设备的说明:本发明实施例中,用户设备还可以包括中继Relay,和基站可以进行数据通信的都可以看为用户设备,本发明实施例中将以一般意义上的UE来介绍。
下面结合说明书附图对本发明各个实施例作进一步地详细描述。显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,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它实施例,都属于本发明保护的范围。
图1为本发明提供的一种信道状态信息的确定方法的流程示意图。所述方法可以如下所述。
步骤101:用户设备(英文:User Equipment;缩写:UE)获取指示信息。
其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源。
可选地,所述指示信息可以由基站通过免许可频谱资源发送,和/或由基站通过许可频谱资源发送。
这里需要说明的是,基站用于发送指示信息的免许可频谱资源可以是已抢占到的第一免许可频谱资源,也可以是已抢占到的第二免许可频谱资源,这里不做限定。
需要说明的是,这里的第一免许可频谱资源和第二免许可频谱资源属于不同的免许可频谱资源。
在步骤101中,UE获取指示信息,包括:
第一种方式:
UE接收所述基站通过所述第一免许可频谱资源发送的指示信息。
其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
具体地,所述基站通过所述第一免许可频谱资源发送的指示信息的形式 可以包含以下信息中的至少一种:
前导信号;
物理下行控制信道(英文:Physical Downlink Control Channel;缩写:PDCCH)承载的下行控制信息(英文:Downlink Control Information;缩写:DCI);
增强物理下行控制信道(英文:Enhanced Physical Downlink Control Channel;缩写:EPDCCH)承载的DCI。
若所述基站通过所述第一免许可频谱资源发送的指示信息为前导信号,那么所述UE检测前导信号,从检测到的所述前导信号中获取指示信息。
需要说明的是,若指示信息通过检测前导信号获得,那么一种方式是,UE通过检测前导信号的有无,判断是否获取到所述指示信息。也就是说,如果UE检测到前导信号存在,则说明UE获取到所述指示信息,也就是说明,基站抢占到第一免许可频谱资源;或者说,如果所述基站通过所述第一免许可频谱资源发送的指示信息的形式为前导信号,那么对应地,“UE接收所述基站通过所述第一免许可频谱资源发送的指示信息”在本发明实施例中可以理解为“UE接收所述基站通过所述第一免许可频谱资源发送的前导信号”,“所述指示信息中包含所述基站发送所述指示信息的时刻”可以理解为“前导信号的发送时刻,即为所述基站发送所述指示信息的时刻”,这里前导信号的发送时刻,可以是从前导信号发送的起始时刻到前导信号发送的结束时刻中包括的任一时刻。
需要说明的是,若指示信息通过检测前导信号获得,那么UE通过检测前导信号获得指示信息的方式可以通过检测构成前导信号的信号序列获得指示信息。
这里需要说明的是,前导信号的信号序列可以包括但不限于以下序列形式:恒包络零自相关(英文:Constant Amplitude Zero Auto Correlation,缩写:CAZAC)序列、二进制序列、m序列、伪随机序列、LTE***中构成参考信号的序列、ZC(Zadoff-Chu)序列。
而LTE***中的参考信号可以包括但不限于:主同步信号(英文:Primary Synchronization Signal;缩写:PSS)、辅同步信号(英文:Secondary Synchronization Signal;缩写:SSS)、小区特定参考信号(英文:Cell-specific Reference Signal;缩写:CRS)、用于物理下行共享信道(英文:Physical Downlink Shared Channel;缩写:PDSCH)数据解调的UE特定参考信号(英文:UE-specific Reference Signal)、用于增强型物理下行控制信道EPDCCH解调的解调参考信号(英文:Demodulation Reference Signal;缩写:DM-RS)、定位参考信号(英文:Positioning Reference Signal;缩写:PRS)、信道状态信息参考信号(英文:Channel State Information Reference Signal;缩写:CSI-RS)、发现参考信号(英文:Discovery Reference Signal;缩写:DRS)。
携带有指示信息的前导信号可以在时间上占用整数个正交频分复用(英文:Orthogonal Frequency Division Multiplexing;缩写:OFDM)符号,也可以在时间上占用分数个OFDM符号,也可以占用设定OFDM符号中的一部分,还可以是占用设定OFDM符号中的整数个或者分数个OFDM符号;携带有指示信息的前导信号在其所占用的每个OFDM符号上或每个分数个OFDM符号上,还可以在频域上占用免许可频谱资源的全部带宽,也可以在频域上占用免许可频谱资源的部分带宽,进一步的,携带有指示信息的前导信号在其所占用的不同OFDM符号上或不同分数个OFDM符号上,在频域上占用的免许可频谱资源的带宽可以不同,也可以相同,这里不做具体限定。
需要说明的是,上述设定OFDM符号可以包括具有特定OFDM符号索引的OFDM符号,例如,如果OFDM符号采用的是正常循环前缀(Normal Cyclic Prefix),那么在一个子帧内共有14个OFDM符号,OFDM符号索引可以是0~13中的任一整数,分别对应一个子帧内第1个OFDM符号到第14个OFDM符号,此时设定的OFDM符号是指OFDM符号索引为#k的OFDM符号,其中k可以是0~13中的任一整数。在本发明实施例中,设定OFDM符号可以是一个OFDM符号,也可以是多个连续或者不连续的OFDM符号,这里不做具体限定。
需要说明的是,当前导信号在时间上利用多个OFDM符号发送时,UE检测前导信号,也可以包括只检测前导信号的一部分。
例如,前导信号在时间上利用多个OFDM符号发送,UE可以只检测其中1个OFDM符号发送的信号,来判断所述基站是否抢占到免许可频谱资源,如果检测到该符号上发送的信号,则可以判断所述基站抢占到免许可频谱资源,同时可以根据该符号在前导信号占用的所有OFDM符号中的位置,确定前导信号发送的起始位置;进一步的,根据该符号在前导信号占用的所有OFDM符号中的位置以及前导信号占用的OFDM符号个数,可以确定前导信号发送的结束位置。上述描述对于前导信号在时间上利用多个分数个OFDM符号发送的情况也适用。也就是说,若指示信息通过检测前导信号获得,UE可通过检测前导信号在部分时间资源上的信号获得指示信息,进一步地,通过检测构成“前导信号在部分时间资源上的信号”的信号序列获得指示信息,这里的时间资源可以是OFDM符号,也可以是分数个OFDM符号,还可以是其他时间单位,这里不做具体限定,这里的信号序列同上描述,不做赘述。
需要说明的是,在本发明实施例中,携带有指示信息的前导信号可以理解为前导信号。如果该前导信号存在,则用于指示基站已抢占到第一免许可频谱资源的指示信息就存在,也就是说,如果前导信号存在,则指示信息就存在。
需要说明的是,前导信号的作用可以包括以下至少一项:指示LTE设备抢占到免许可频谱资源(或者指示LTE设备在免许可频谱资源上可以传输数据),LTE小区识别,频率粗同步,时间粗同步,频率细同步,时间细同步,CSI测量,自动增益控制(Auto Gain Control,AGC)等。
在本发明实施例中,携带有指示信息的前导信号可以通过第一免许可频谱资源发送。那么UE检测前导信号,通过判断前导信号是否存在,来确定基站是否抢占到免许可频谱资源。若UE检测到前导信号,则确定基站已抢占到免许可频谱资源;若UE尚未检测到前导信号,则确定基站尚未抢占到免许可频谱资源。
若所述基站通过所述第一免许可频谱资源发送的指示信息为DCI,则所述UE检测DCI,从检测到的所述DCI中获取指示信息。
也就是说,UE在获取到指示信息时,即可确定基站已抢占到免许可频谱资源的使用机会。
在本发明实施例中,通过所述第一免许可频谱资源发送的DCI,可以承载在所述第一免许可频谱资源发送的PDCCH中,也可以承载在所述第一免许可频谱资源发送的EPDCCH中,也可以承载在其他信道例如物理下行业务信道PDSCH中;通过所述第一免许可频谱资源发送的DCI可以在第一免许可频谱资源对应的载波或小区的子帧边界开始发送,也可以在子帧中间开始发送。
需要说明的是,这里的子帧中间是指一个子帧从子帧起始边界到该子帧结束边界中包括的任一位置。
进一步的,还可以在子帧中间某一固定的OFDM符号边界开始发送,以减少UE的盲检测负责度。
需要说明的是,这里的DCI可以位于公共搜索空间,也可以位于UE特定搜索空间,可以对特定用户群的UE有效,也可以只对单个UE有效,或者对第一小区所能服务的所有UE有效。
进一步的,为了减少UE盲检测复杂度,DCI的格式和/或包含的内容可以是预定义好的,这样UE就可以只对具有特定格式和/或特定内容的DCI进行检测,而不需要检测所有可能的DCI格式和/或所有可能的DCI内容。进一步的,承载DCI的信道发送的起始位置也可以是预定义好的,即承载DCI的信道发送的起始位置可以位于设定的OFDM符号边界。
这里需要说明的是,所述指示信息中包含所述基站发送所述指示信息的时刻可以包含但不限于以下几种情形:
第一种情形:基站在抢占到第一免许可频谱资源的使用机会时,通过第一免许可频谱资源上发送前导信号,那么所述基站发送前导信号的时刻可以作为所述基站发送所述指示信息的时刻。
在本发明实施例中,所述基站发送前导信号的时刻可以是发送所述前导信号的起始时刻到发送所述前导信号的结束时刻中包括的任一时刻。
这里需要说明的是,基于UE与基站之间数据传输时延,这里也可以将UE检测到前导信号的时刻理解为所述基站发送前导信号的时刻。
如图2所示,为将已抢占到第一免许可频谱资源的时刻作为前导信号的起始发送时刻的示意图。
当基站已抢占到的第一免许可频谱资源上发送前导信号的时刻为OFDM符号的起始边界时,那么前导信号的起始发送时刻如图3所示。
具体的,基站在抢占到免许可频谱资源之后,从抢占到免许可频谱资源的时刻开始,到等待发送前导信号的时刻到来之前,发送预占用信号,预占用信号的主要作用是表征所述基站已占用该免许可频谱资源,可以不需要用户设备对其进行检测。预占用信号对应的主要场景是,免许可频谱资源上数据传输的起始时刻是预定义的,例如,起始时刻为子帧边界、符号边界、时隙边界,这里的数据包括前导信号、参考信号、控制信道、数据信道等。同时,基站抢占到免许可频谱资源的时刻是任意的,即可以是一个子帧内的任意时刻,也可以是一个符号内的任意时刻,还可以是一个时隙内的任意时刻,在这种情况下,基站在抢占到免许可频谱资源之后,等待数据传输的起始时刻到来之前,为了保证对所述免许可频谱资源的占用,在上述时间范围内,可以发送预占用信号。
第二种情形:基站发送指示信息的时刻还可以是基站实际发送数据的起始时刻,这一时刻相对于抢占到第一免许可频谱资源的使用机会的时刻要晚些。这里实际发送的数据可以包括PDCCH,PDSCH,EPDCCH等。
第二种方式:
UE接收所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令。
其中,所述跨载波信令中包含所述基站发送的指示信息。
所述UE从接收到的所述跨载波信令中获取所述基站发送的指示信息。
其中,所述指示信息中包含所述基站指示的时间单元。
也就是说,LTE设备(或者基站)在抢占到免许可频谱资源的使用机会时,可以在免许可频谱资源/许可频谱资源上发送跨载波信令,这样,UE可以通过检测跨载波信令获取指示信息。
具体地,所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令的形式可以包含以下指示信息中的至少一种,或者说这里的指示信息可以包括以下至少一种:
PDCCH承载的DCI;
EPDCCH承载的DCI。
还需要说明的是,涉及到的所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
需要说明的是,这里的数据可以是参考信号,数据信道承载的数据,也可以是前导信号。参考信号可以如上所述,在本发明实施例中不做具体限定,数据信道可以是PDCCH,PDSCH,EPDCCH,物理广播信道(英文:Physical Multicast Channel;缩写:PMCH)等。
需要说明的是,所述基站指示的时间单元中包含的时刻可以是子帧边界,也可以是符号边界,也可以是时隙边界,如图4所示,为所述基站指示的时间单元中包含的时刻为子帧边界的示意图;如图5所示,为所述基站指示的时间单元中包含的时刻为符号边界的示意图。
需要说明的是,图4和图5是以指示信息由许可频谱资源发送为例进行说明,同样也适用于指示信息由第二免许可频谱资源发送的情况。在图4和图5中,预占用信号的主要作用是使得基站在抢占到免许可频谱资源之后,在数据开始传输之前,也可以占用信道,这里的数据可以是参考信号,数据信道承载的数据,也可以是前导信号。
可选的,在本发明实施例中,UE在检测跨载波信令承载的内容之前,可 以先缓存第一免许可频谱资源的数据,然后再检测跨载波信令承载的内容,所述跨载波信令指示的时间单元可以位于缓存的数据之内。这种先缓存后检测的方法特别适用于当第一免许可频谱资源的数据在子帧中间开始传输的场景。
第三种方法:
UE接收所述基站通过所述第一免许可频谱资源发送的控制信息。
其中,所述控制信息中包含所述基站发送的指示信息。
所述UE从接收到的所述控制信息中获取所述基站发送的指示信息。
其中,所述指示信息中包含所述基站指示的时间单元。
这里的控制信息可以是DCI,也可以是其他信息,这里不做限定。
还需要说明的是,涉及到的所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
这里所述基站利用所述第一免许可频谱资源进行数据传输的时刻,可以是从时刻T1到时刻T2中包括的任一时刻,其中,时刻T1可以对应所述基站抢占到所述第一免许可频谱资源的起始时刻,时刻T2可以对应所述基站在所述第一免许可频谱资源上结束数据传输的时刻;时刻T2还可以对应所述基站在不需要重新通过侦听获取所述第一免许可频谱资源传输机会的情况下,可以使用所述第一免许可频谱资源的最大时间所对应的时刻。
例如,假设所述基站在T1时刻抢占到第一免许可频谱资源,不需要重新通过侦听使用所述第一免许可频谱资源的最长时间为x毫秒,那么时刻T2就可以对应(T1+x毫秒)对应的时刻。
换句话说,所述基站利用所述第一免许可频谱资源进行数据传输的时刻,可以是所述基站在抢占到所述第一免许可频谱资源之后和结束使用所述第一免许可频谱资源之前时间内包括的任意时刻,在这段时间内,所述基站不需要重新侦听获取所述第一免许可频谱资源的使用机会。
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻,可以是所述基站利用所述第一免许可频谱资源对UE进行数据调度的起始时刻,例如,子帧边界,正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号边界,时隙(Slot)边界等。被调度的数据可以是PDSCH等。需要说明的是,在本发明实施例中,UE在检测所述第一免许可频谱资源发送的控制信息之前,可以先缓存第一免许可频谱资源的数据,然后再检测所述第一免许可频谱资源发送的控制信息,所述第一免许可频谱资源发送的控制信息指示的时间单元可以位于缓存的数据之内。这种先缓存后检测的方法特别适用于当第一免许可频谱资源的数据在子帧中间开始传输的场景。
步骤102:所述UE根据获取到的所述指示信息,确定参考时间点。
其中,参考时间点可以用于表征基站在抢占到免许可频谱资源的使用机会后,在第一免许可频谱资源上传输数据的时刻。
这样,UE通过确定参考时间点,为后续有效地提升确定被基站抢占到的第一免许可频谱资源在进行数据传输时信道状态信息的精度奠定基础。
在步骤102中,所述UE根据获取到的所述指示信息,确定参考时间点的方式包括但不限于:
第一种方式:
若所述指示信息中包含所述基站发送所述指示信息的时刻,则所述UE根据获取到的所述指示信息,确定参考时间点,包括:
所述UE根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
具体地,所述UE将所述基站发送所述指示信息的时刻确定为参考时间点。
这里需要说明的是,所述指示信息中包含所述基站发送所述指示信息的时刻,这里所述基站发送所述指示信息的时刻可以包含但不限于以下几种情形:
第一种情形:基站在抢占到第一免许可频谱资源的使用机会时,通过第 一免许可频谱资源上发送前导信号,那么所述基站发送前导信号的时刻可以作为所述基站发送所述指示信息的时刻,这里发送前导信号的时刻可以是发送前导信号的起始时刻到发送前导信号的结束时刻中包括的任一时刻。
这里需要说明的是,基于UE与基站之间数据传输时延,这里也可以将UE检测到前导信号的时刻理解为所述基站发送前导信号的时刻。
具体地,基站发送该前导信号的时刻可以在时域资源上占用整数个OFDM符号,也可以占用分数个OFDM符号,也可以占用设定OFDM符号中的一部分,还可以是占用设定OFDM符号中的整数个或者分数个OFDM符号。
第二种情形:基站发送指示信息的时刻还可以是基站实际发送数据的起始时刻,这一时刻相对于抢占到第一免许可频谱资源的使用机会的时刻要晚些。
具体地,基站通过能量检测和/或信号解析,抢占到第一免许可频谱资源的使用机会,基站在发送数据之前,首先发送预占用信号,再发送指示信息。
具体的,基站在抢占到免许可频谱资源之后,在从抢占到免许可频谱资源的时刻开始,在等待数据传输的起始时刻到来之前,发送预占用信号,预占用信号的主要作用是表征所述基站已占用该免许可频谱资源,可以不需要用户设备对其进行检测。预占用信号对应的主要场景时,数据传输的起始时刻是预定义的,例如为子帧边界、符号边界、时隙边界,同时基站抢占到免许可频谱资源的时刻是任意的,即可以是一个子帧内的任意时刻,也可以是一个符号内的任意时刻,还可以是一个时隙内的任意时刻,在这种情况下,基站在抢占到免许可频谱资源之后,等待数据传输的起始时刻到来之前,为了保证对所述免许可频谱资源的占用,在上述时间范围内,可以发送预占用信号。
需要说明的是,该预占用信号可以是前导信号的一部分,也可以是其他信号,这里不做限定。
由此可见,所述基站发送所述指示信息的时刻可以是基站在抢占到第一 免许可频谱资源时发送前导信号的时刻;还可以是基站在抢占到第一免许可频谱资源时实际发送数据的起始时刻。
也就是说,UE通过所述基站发送所述指示信息的时刻确定的参考时间点包括但不限于:
基站在抢占到第一免许可频谱资源时发送前导信号的时刻;
基站在抢占到第一免许可频谱资源时实际发送数据的起始时刻。
可选地,UE通过所述基站发送所述指示信息的时刻确定的参考时间点还可以包括,基站在抢占到第一免许可频谱资源时实际发送数据的起始时刻到实际发送数据的结束时刻中包括的任一时刻。
可选地,若所述基站发送所述指示信息的时刻为所述基站实际发送数据的起始时刻,由于发送数据的起始时刻与发送数据特征相关,例如:若发送的数据为前导信号,则发送数据的起始时刻可以是OFDM符号的起始边界;若发送的数据为控制数据和/或业务数据,则发送数据的起始时刻可以是子帧的起始边界,也可以是时隙的起始边界。
例如:控制数据和/或业务数据可以为:PDCCH承载的数据、EPDCCH承载的数据、PDSCH承载的数据、PMCH承载的数据。
需要说明的是,发送数据的起始时刻还可以根据基站抢占到第一免许可频谱资源的时刻进行调整。例如:基站抢占到第一免许可频谱资源的时刻为一个子帧的起始边界,且基站在每次发送数据之前都要发送前导信号,则基站从该子帧的边界开始发送前导信号,发送前导信号结束后,再开始发送控制数据和/或业务数据;或者,
基站抢占到第一免许可频谱资源的时刻为一个子帧的起始边界,且基站从该子帧的起始边界开始,同时发送前导信号和控制数据,或者同时发送前导信号和业务数据,或者同时发送前导信号、控制数据和业务数据。此时,基站在执行数据发送时可以采用频分复用、码分复用等方式正交分开发送前导信号、控制数据、业务数据。
第二种方式:
若所述指示信息中包含所述基站发送所述指示信息的时刻,则所述UE根据获取到的所述指示信息,确定参考时间点,包括:
所述UE根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
例如:预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系为参考时间点与所述基站发送所述指示信息的时刻之间间隔预定义时长,即将与所述基站发送所述指示信息的时刻间隔预定义时长的时刻作为参考时间点。具体地,参考时间点可以在所述基站发送所述指示信息的时刻之前的预定义时长对应的时刻;也可以在所述基站发送所述指示信息的时刻之后的预定义时长对应的时刻,这里不做限定。
例如,前导信号在时间上占用4个OFDM符号,UE可以只通过检测位于第2个OFDM符号发送的第一信号,其中,第一信号是前导信号的一部分,确定所述基站抢占到免许可频谱资源。也就是说,此时,UE检测到的所述基站发送所述指示信息的时刻可以是前导信号包括的4个OFDM符号中第2个OFDM符号所在的时间位置。例如,用所述第2个OFDM符号的符号索引表示,预定义时长可以是1个OFDM符号,并定义参考时间点是在所述基站发送所述指示信息的时刻之前,那么UE可以确定参考时间点是前导信号在时间上占用的4个OFDM符号中的第1个OFDM符号;又或者,预定义时长可以是3个OFDM符号,并定义参考时间点是在所述基站发送所述指示信息的时刻之后,那么UE可以确定参考时间点是前导信号在时间上的结束位置对应的时刻。如图6所示的参考时间点可以是从前导信号的起始发送位置到结束发送位置之间的任意一个UE可以识别的时间点(包括前导信号的起始发送位置和结束发送位置),例如OFDM符号边界,分数个OFDM符号边界,以及整数个LTE***中所采用的采样率的倒数。
需要说明的是,预定义时长可以使用整数个OFDM符号表示,也可以是使用分数个OFDM符号表示,其中,分数个OFDM符号的个数可以是1个也 可以是多个。
需要说明的是,根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点,还可以是,将所述基站发送所述指示信息的时刻之前或之后距离所述基站发送所述指示信息的时刻最近的OFDM符号边界、或者分数个OFDM符号边界、或者时隙边界、或者子帧边界作为参考时间点。
这里需要说明的是,在第二种方式中,确定基站发送指示信息的时刻可以包含第一种方式中记载的两种情形,这里不再赘述。
第三种方式:
若所述指示信息中包含所述基站指示的时间单元,则所述UE根据获取到的所述指示信息,确定参考时间点,包括:
所述UE根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
其中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
一般地,若所述基站指示的时间单位为所述基站利用所述第一免许可频谱资源进行数据传输的时刻,如前所述,可以是从时刻T1到时刻T2中包括的任一时刻,其中时刻T1可以对应所述基站抢占到所述第一免许可频谱资源的起始时刻,时刻T2可以对应所述基站在所述第一免许可频谱资源上结束数据传输的时刻;时刻T2还可以对应所述基站在不需要重新通过侦听获取所述第一免许可频谱资源传输机会的情况下,可以使用所述第一免许可频谱资源的最大时间所对应的时刻。
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻,可以是所述基站利用所述第一免许可频谱资源对UE进行数据调度的起始时刻,例如,子帧边界,正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号边界,时隙(Slot)边界等。被调度的数据可以是PDSCH等。
具体地,若所述基站指示的时间单元为所述基站利用所述第一免许可频谱资源进行数据传输的起始时刻,则所述基站利用所述第一免许可频谱资源进行数据传输的起始时刻在子帧边界,或者在时隙边界,或者在预设定的OFDM符号边界,这样有效降低UE对免许可频谱资源传输数据的起始时刻进行盲检测的复杂度。
若所述基站指示的时间单元为所述基站利用所述第一免许可频谱资源发送前导信号的时刻,则所述基站利用所述第一免许可频谱资源进行数据传输的起始时刻在OFDM符号边界,或者在分数个OFDM符号边界。具体地,所述基站利用所述第一免许可频谱资源发送前导信号的时刻可以为从抢占到免许可频谱资源之后且距离抢占到免许可频谱资源对应的时刻最近的数据传输起始位置开始(例如:OFDM符号边界),到下一个最近的子帧边界的起始位置结束。
需要说明的是,所述基站指示的时间单元还可以为发送前导信号的起始位置至发送前导信号的结束位置之间的任意一个UE可识别的时间位置,UE可以识别的位置可以用OFDM符号边界,分数个OFDM符号边界,以及采样率倒数的整数倍。
可选地,若所述基站指示的时间单元为发送前导信号的起始位置至发送前导信号的结束位置之间的任意一个UE可识别的时间位置,则UE可以对指示信息之前的免许可频谱资源上可能传输的数据进行缓存,所述指示信息可以通过以下资源中的至少一项发送:许可频谱资源,已抢占到的第二免许可频谱资源,第一免许可频谱资源。
第四种方式:
UE通过检测免许可频谱资源上的PDCCH,将PDCCH承载的DCI指示的时间位置作为参考时间点。或者UE通过检测免许可频谱资源上的EPDCCH,将EPDCCH承载的DCI指示的时间位置作为参考时间点。
其中,DCI指示的时间位置可以为PDCCH发送DCI所占用的时间位置,也可以是EPDCCH发送DCI所占用的时间位置,也可以是PDCCH指示的其 他时间位置,也可以是EPDCCH指示的其他时间位置,这里不做限定。
具体地,为了降低UE盲检测的复杂度,可以预设免许可频谱资源上PDCCH或EPDCCH的时间位置。例如:PDCCH的起始位置在预设的OFDM符号边界,或者PDCCH的起始位置在子帧的边界,或者PDCCH的起始位置在时隙的边界,或者PDCCH的起始位置在一个子帧的固定位置,再例如:固定位置可以是指一个子帧内的1/N子帧长度对应的时间位置,一个子帧内的2/N子帧长度对应的时间位置等等。
此外,为了降低UE盲检测的复杂度,还可以预先定义PDCCH的格式,UE可以结合预定义的PDCCH的起始位置与预定义的PDCCH的格式,对PDCCH进行检测;如果在预定义的位置上检测到预定义格式的PDCCH,则可以确定基站抢占到免许可频谱资源,以及确定PDCCH的起始位置,并将确定的PDCCH的起始位置作为参考时间点。
如图7所示,为PDCCH的起始位置的示意图。
步骤103:所述UE根据所述参考时间点,确定参考资源。
其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态。
在步骤103中,所述UE根据所述参考时间点确定参考资源,该参考资源在时间上可以是一个完整的子帧。
需要说明的是,参考资源可以包含时域资源,还可以包含频域资源,也可以包含码域资源,这里不做限定。
具体地,所述UE根据所述参考时间点,确定参考资源的方式包括但不限于:
第一种方式:
所述UE根据所述参考时间点,选择与所述参考时间点之间的距离满足设定第一阈值的时间单元对应的时域资源为参考资源。
其中,设定第一阈值可以根据与所述参考时间点之间的距离确定的最近距离值,也可以是整数个OFDM符号或者分数个OFDM符号,还可以是其他 表现形式,这里不做限定。
例如:所述UE根据所述参考时间点,在所述参考时间点之后,距离该参考时间点最近的时间单元对应的时域资源作为参考资源。
所述UE根据所述参考时间点,将包含该参考时间点的时间单元对应的时域资源作为参考资源。
这里所说的时间单元可以是无线帧、子帧、时隙、OFDM符号中的任一种。
这样,由于确定的参考时间点与第一免许可频谱资源进行数据传输的起始时刻存在关联关系,或者确定的参考时间点包含第一免许可频谱资源进行数据传输的起始时刻,在参考时间点之后的一段时间内,基站将使用该第一免许可频谱资源与UE进行数据传输。那么,将参考时间点之后的最近的一个时间单元对应的时域资源或者包括参考时间点在内的一个时间单元对应的时域资源作为参考资源,能够保证该参考资源位于基站和UE使用第一免许可频谱资源进行数据通信的时间范围之内,同时由于按照距离参考时间点最近原则以及包括参考时间点的原则,确定参考资源,UE在利用参考资源对第一免许可频谱资源对应的信道进行测量时,无需获取第一免许可频谱资源实际被占用的时间,节省信令开销,减少UE检测的内容,有助于提高信道状态信息的测量精度。
需要说明的是,在本发明实施例中,确定的参考资源主要是从时域资源角度描述,对于参考资源在频域上占用的资源,例如是第一免许可频谱资源的在所述时域资源内对应的全部频率资源还是部分频率资源,在本发明实施例中,不做具体限定。
第二种方式:
所述UE接收所述基站发送的用于上报信道状态信息的资源信息。
其中,所述资源信息中包含时域资源。
所述UE根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源。
需要说明的是,这里所记载的所述参考时间点对应的时域资源可以是包含所述参考时间点的时间单元对应的时域资源,还可以是距离所述参考时间点最近的时间单元对应的时域资源,这里不做具体限定。所述时间单元同上所述,可以是无线帧、子帧、时隙、OFDM符号中的任一种,相应地,所述时间单元对应的时域资源可以是无线帧包括的时间域资源、子帧包括的时间域资源、时隙包括的时间域资源、OFDM符号包括的时间域资源,在此不做赘述。
其中,所述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。需要说明的是,如果所述参考资源包含的时域资源是一个子帧对应的时域资源,那么所述参考资源包含的时域资源对应的时间点可以是该子帧的起始边界到该子帧的结束边界之间包括的任一时刻;如果所述参考资源包含的时域资源是一个时隙对应的时域资源,那么所述参考资源包含的时域资源对应的时间点可以是该时隙的起始边界到该时隙的结束边界之间包括的任一时刻;如果所述参考资源包含的时域资源是多个OFDM符号对应的时域资源,那么所述参考资源包含的时域资源对应的时间点可以是多个OFDM符号的起始边界到该多个OFDM符号的结束边界之间包括的任一时刻。
所述UE接收所述基站发送的用于上报信道状态信息的资源信息中包含的时域资源对应的时间可以是在基站抢占到第一免许可频谱资源的使用机会的时间范围之内,也可以是在基站没有抢占到第一免许可频谱资源的使用机会的范围之外。
所述UE确定的参考资源对应的时间可以是基站抢占到第一免许可频谱资源的使用机会的时间范围之内。
所述资源信息中包含的时域资源可以使用子帧表示,也可以是其他表示形式,例如:OFDM符号表示、时隙表示、无线帧表示等。
所述资源信息中包含的的频域资源包含UE上报信道状态信息所占用的频率位置对应的频域资源,包含整数个连续或者非连续的子载波、整数个连续或者非连续的资源元素(英文:Resource Element;缩写:RE)、整数个资 源块(英文:Resource Block:缩写:RB)等,在本发明实施例中,不做具体限定。
所述UE接收所述基站发送的用于上报信道状态信息的资源信息的方式可以通过物理层信令、RRC信令、MAC信令等。
需要说明的是,所述UE接收所述基站发送的用于上报信道状态信息的资源信息可以是在步骤103中实施的,也可以是在步骤101或者步骤102之前、之中或者之后实施,这里不做具体限定。
具体地,所述UE从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
需要说明的是,假设所述参考时间点对应的时域资源所在的时间单位可以采用子帧表示,例如,所述参考时间点对应的时域资源所在的时间单位所使用子帧的子帧索引为#k的子帧;所述资源信息中包含的时域资源所在的时间单位也可以采用子帧表示,例如,所述资源信息中包含的时域资源所在的时间单位所使用的子帧索引为#m的子帧,其中,子帧索引#k和子帧索引#m均可以通过无线帧索引和时隙索引表示,即通过
Figure PCTCN2015076339-appb-000001
来表示,其中nf表示无线帧索引,取值范围从0到10239中的任意一个整数值,ns表示时隙索引,取值范围从0到19中的任意一个整数值,
Figure PCTCN2015076339-appb-000002
表示对x向下取整。那么从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包括的所有时域资源,可以包括从子帧索引为#k的子帧开始到子帧索引为#m的子帧结束,所包括的所有子帧包含的时域资源。
其中,所述设定条件包含以下条件中的至少一个:
条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前。
这里设定的第二阈值可以满足UE从基于参考资源确定信道状态信息到 上报该信道状态信息,所需要消耗的时间,例如可以是4个子帧长度,也可以是2个子帧长度等。
条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离。
这样做的好处在于,可以保证用于确定信道状态信息的参考资源更靠近参考时间点,所确定的信道状态信息更接近抢占到免许可频谱资源之后对应的信道状态信息。
条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资源作为参考资源。
需要说明的是,对于条件三,可以选择与所述资源信息中包含的时域资源之间距离最近的所述参考时间点对应的时域资源作为参考资源。
需要说明的是,在本发明实施例中,参考资源位于所述基站已抢占到的所述第一免许可频谱资源的时间范围内。
这样做的好处在于,可以保证用于确定信道状态信息的参考资源更接近所述资源信息中包含的时域资源,由于基站可以利用在所述资源信息中包含的时域资源UE上报的信道状态信息,对UE进行数据调度,例如选择合适的调制编码方案(英文:Modulation Coding Scheme;缩写:MCS),因此将距离所述资源信息包含的时域资源最近的参考时间点对应的时域资源作为参考资源,可以保证UE上报的信道状态信息,更接近上报资源时刻之后对应的信道状态信息,从而可以使基站利用上报资源时刻之后的资源调度UE数据时,可以根据UE上报的信道状态信息,选择与数据调度时刻比较接近的信道状态信息。例如基站在t1时刻到t2时刻之间的连续时间内利用抢占到免许可频谱资源进行数据传输,UE确定的第一参考时间点位于此连续时间内;基站在t3时刻到t4时刻之间的连续时间内也利用抢占到免许可频谱资源进行数据传输,UE确定的第二参考时间点位于此连续时间内,UE确定的所述资源信息包含的时域资源在t5时刻,其中t1、t2、t3、t4、t5代表的时刻从前到后,根 据条件三,在t3时刻到t4时刻之间确定的第二参考时间点距离t5时刻更近,因此可以将第二参考时间点对应的时域资源作为参考资源。
需要说明的是,本发明实施例中所述的设定第一阈值、设定第二阈值、设定门限值可以根据实验数据确定,也可以根据实际需要确定,实现方式这里不做限定。
步骤104:所述UE根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。
在步骤104中,所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
需要说明的是,在本发明实施例中,所述参考资源包含的时域资源可以是包含参考资源的时间单元对应的时域资源,所述时间单元同上所述,可以是无线帧、子帧、时隙、OFDM符号中的任一种;相应地,所述参考资源的时间单元对应的时域资源可以是无线帧包括的时间域资源、子帧包括的时间域资源、时隙包括的时间域资源、OFDM符号包括的时间域资源;相应地,所述参考资源中包含的时域资源对应的时间可以用以下至少一项来表示:无线帧索引、子帧索引、时隙索引、OFDM索引。另一方面,在本发明实施例中,所述资源信息中包含的时域资源可以使用子帧表示,也可以是其他表示形式,例如:OFDM符号表示、时隙表示、无线帧表示等,相应地,所述资源信息中包含的时域资源对应的时间可以用以下至少一项来表示:子帧索引、OFDM符号索引、时隙索引、无线帧索引。所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值,可以用以下至少一项来表示:整数个子帧、整数个OFDM符号、整数个时隙、整数个无线帧,或者还可以通过整数个采样率倒数来表示,其中,假设采样率倒数可以用Ts表示,则15360*Ts=0.5毫秒。在本发明是实施例中,第三阈值也可以用以下至少一项来表示:整数个子帧、整数个OFDM 符号、整数个时隙、整数个无线帧、整数个采样率倒数。
具体地,所述UE根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;所述UE对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息,确定所述参考资源包含的频域资源可以通过其他方式,例如预定义,标准协议规范、物理层信令、RRC信令、MAC通知等方式使UE获知。
具体地,所述UE对确定的所述时域资源分别进行信道测量和/或干扰测量;
和/或,所述UE对确定的所述频域资源分别进行信道测量和/或干扰测量。
根据信道测量结果和/或干扰测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
所述UE配置的免许可频谱资源对应信道的信道状态信息,包括:
所述UE接收所述基站发送的特定信令。
其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
所述特定信令的形式包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
或者,特定信令也可以通过标准协议规定,预定义的方式,使UE确定配置的免许可频谱资源对应信道的信道状态信息。
可选地,所述UE确定配置的免许可频谱资源对应信道的信道状态信息,包括:
所述UE接收所述基站发送的指示信息。
其中,所述指示信息中包含配置的免许可频谱资源对应信道的信道状态 信息。
可选地,所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,根据配置的参考资源与免许可频谱资源对应信道的信道状态信息之间的对应关系以及确定的所述参考资源,得到所述第一免许可频谱资源对应信道的信道状态信息。
也就是说,基站可以配置多个参考资源对应一个信道状态信息,也可以配置一个参考资源对应一个信道状态信息,这里不做具体限定。
在本发明实施例中,所述第一免许可频谱资源对应信道的信道状态信息可以通过与信道状态信息一一对应的索引来表示,例如,利用信道质量指示(英文:Channel Quality Indicator,缩写:CQI)索引来表示,配置的免许可频谱资源对应信道的信道状态信息可以是现有LTE***中,用特定CQI索引来表示,例如:CQI索引0,CQI索引1,或其他CQI索引,可选的,配置的CQI索引,能够满足如果基站采用配置的CQI索引对应的信道状态信息对UE进行调度,可以保证基站和UE之间的数据传输例如下行数据传输的初传成功率不低于某一门限,例如90%。
可选的,特定的CQI索引也可以不同于现有LTE***中支持的CQI索引,可以用特定的CQI索引来表示,UE在对应于特定CQI索引的上报资源的参考资源与特定CQI索引的上报资源之间的时间差值不小于设定的第三阈值,基站可以根据特定CQI索引,确认与当前上报资源对应的参考资源所确定的信道状态信息不准确,或者,该参考资源与上报资源之间的时间差值不小于设定的第三阈值。特别地,特定的CQI索引可以不同于现有LTE***中支持的CQI索引0,这是因为,目前如果UE上报CQI索引0,特别是针对辅服务小区上报CQI索引0时,辅服务小区从属的基站可以判断UE对辅服务小区的无线链路检测(英文:Radio Link Monitoring,缩写:RLM)失败,因此如果复用CQI索引0,可能会令基站误判断辅服务小区无线链路失败,所以可以引入不同于CQI索引0的特定的CQI索引,以使得基站不仅可以正确判断 辅服务小区是否无线链路失败,还可以判断上报资源与与其对应的参考资源之间的时间差值之间的关系与设定的第三阈值之间的关系。
具体地,所述UE将确定的所述信道状态信息发送给所述基站的方式包括但不限于以下方式:
第一种方式:
所述UE周期上报确定的所述信道状态信息。
具体地,假设在步骤103中,采用满足条件三的方式确定参考资源,并根据确定的参考资源得到所述基站与所述UE之间的信道状态信息,如图8所示,为确定的参考资源位置的结构示意图。
从图8中可以看出,假设上报信道状态信息的时间资源可以位于许可频谱资源,也可以位于免许可频谱资源,分别以时间资源1、时间资源2、时间资源3表示。
标号为“4”和“5”的阴影部分表示基站抢占到免许可频谱资源的时间位置,其中,“4”和“5”的时间位置对应的资源中包括参考资源。
当UE在时间资源1上报信道状态信息时,可以根据距离时间资源1最近的“4”中包含的参考资源,确定信道状态信息,这里确定信道状态信息的方式,是UE可以利用时间资源“4”中包含的参考资源,进行信道和/或干扰测量;
同理,UE在时间资源2上报信道状态信息时,可以根据距离时间资源2最近的“5”中包含的参考资源,确定信道状态信息;
进一步地,UE也可以利用“4”和“5”中包含的参考资源,共同确定信道状态信息,例如将“4”和“5”对应的参考资源的测量结果(例如干扰I)进行平均。
当UE在时间资源3上报信道状态信息时,距离时间资源3最近的时间资源“5”与时间资源“3”之间的时间间隔超过第三阈值,此时,UE可以在时间资源3上上报一个配置的信道状态信息。
这样做的好处在于,如果距离上报资源最近的参考资源与上报资源之间 的时间间隔超过第三阈值,则说明,即使此时UE根据该参考资源测量得到信道状态信息,并且将此确定的信道状态信息上报,但由于该信道状态信息基于的参考资源与上报资源之间的时间间隔过长,上报的信道状态信息也无法反映上报资源之后免许可频谱上基站和UE之间的信道状态,因此,为了节省UE端的操作,这种情况下,可以令UE不进行信道状态信息测量,而直接上报配置的信道状态信息。
需要说明的是,对于在上报资源3之后出现的上报资源6,如果能够找到对应上报资源6有效的参考资源,例如距离上报资源6最近的参考资源(位于时间资源“7”)与上报资源之间的时间间隔没有超过第三阈值,那么UE可以根据如图9中所述的“7”中包括的参考资源,进行信道和/或干扰测量,确定在上报资源6所要上报的信道状态信息。对于LTE***而言,UE在时间上先后周期上报的信道状态信息可以具有某种联系,例如UE根据RI或PMI计算CQI。那么UE在上报资源6上报的信道状态信息可以和前一个配置的信道状态信息相关,也可以无关。
具体的,对于图9所示的情形,可能存在一个问题,就是假设UE在上报资源3上报的信道状态信息表示全频带信道状态信息,由于距离上报资源3最近的参考资源(位于时间资源“5”)与上报资源“3”之间的距离超过第三阈值,因此上报资源3上报的秩指示(英文:Rank Indication;缩写:RI)是配置的信道状态信息,此时UE在上报资源6上报预编码矩阵指示(英文:Precoding Matrix Indicator缩写:PMI)和/或CQI,可以基于上报资源3上报的配置的RI来计算,也可以重新根据“7”包括的参考资源来重新计算RI,并基于重新计算的RI,计算PMI和/或CQI信息。
对应的,在上报资源6,UE可以先上报基于“7”重新计算的RI,然后在上报资源6之后的其他上报资源,上报PMI和/或CQI,亦或者,UE可以直接将根据“7”重新计算的信道状态信息包括PMI、RI、CQI进行上报。在这种方式下,如果UE基于时间资源“7”包括的参考资源重新计算了信道状态信息,而并没有利用时间资源“5”包括的参考资源对应的配置的信道状态 信息,还需要通知eNB采用上述哪种上报方式。
第二种方式:
所述UE非周期上报确定的所述信道状态信息。
具体地,UE非周期上报信道状态信息的具体方式与周期上报信道状态信息的具体方式类似。
但是,对于具有CA能力的UE,基站可以通过RRC信令配置UE具有多个服务小区(serving cells),基站可以通过非周期信道状态信息触发信令触发UE上报对多个服务小区测量得到的信道状态信息。
对于承载非周期信道状态信息触发信令的服务小区,对应抢占到免许可频谱资源,而对于所述触发信令中指示的其他服务小区,由于免许可频谱资源的随机使用,可能没有抢占到免许可频谱资源,因此对于没有抢占到免许可频谱资源且又属于触发信道状态信息上报的其他服务小区,UE也需要通过本发明实施例中提到的确定参考资源的方式,确定信道状态信息。
通过本发明实施例的方案,UE获取指示信息,所述指示信息用于指示基站已抢占到第一免许可频谱资源;根据获取到的所述指示信息,确定参考时间点;根据所述参考时间点,确定参考资源,所述参考资源用于测量已抢占到的所述第一免许可频谱资源对应信道的信道状态;根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。这样,在免许可频谱资源机会使用的情况下,UE实时根据基站发送的指示信息确定参考时间点,进而确定用于测量基站抢占到的免许可频谱资源对应信道的信道状态的参考资源,使得确定的参考资源可以根据基站抢占到的免许可频谱资源灵活调整,使UE准确地确定出与免许可频谱资源对应的信道相匹配的信道状态信息,提升了信道状态信息测量的精度,有效的保证使用免许可频谱资源的数据传输效率。
图10为本发明实施例提供的一种信道状态信息的确定方法的流程示意图。本发明实施例的执行主体为基站,所述方法如下所述。
步骤1001:基站向UE发送指示信息。
其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源。
在步骤1001中,基站向UE发送指示信息,包括:
第一种方式:
所述基站通过所述第一免许可频谱资源向所述UE发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
第二种方式:
所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令。
其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
第三种方式:
所述基站通过所述第一免许可频谱资源向所述UE发送控制信息。
其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
其中,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
可选地,所述指示信息包括以下信息中的至少一种:
前导信号;
PDCCH承载的DCI;
EPDCCH承载的DCI。
可选地,基站在向UE发送指示信息之前,所述方法还包括:
所述基站向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
步骤1002:所述基站接收所述UE发送的信道状态信息。
其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时 间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
在步骤1002中,所述方法还包括:
所述基站向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
可选地,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
需要说明的是,在本发明实施例中,无论通过哪种方式确定参考资源,参考资源可以位于所述基站抢占到所述第一免许可频谱资源之后和释放所述第一免许可频谱资源之前包括的时频资源,特别适用于确定当所述基站使用所述第一免许可频谱是对应的CSI。
如图11所示,为本发明实施例提供的一种信道状态信息的确定设备的结构示意图,所述确定设备包括:获取单元1101、确定单元1102和发送单元1103,其中:
获取单元1101,用于获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
确定单元1102,用于根据所述获取单元1101获取到的所述指示信息,确定参考时间点;并根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;
发送单元1103,用于根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。
具体地,所述获取单元1101,具体用于接收基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻;
所述确定单元1102,具体用于根据所述获取单元1101获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
具体地,所述确定单元1102根据所述获取单元1101获取到的所述指示 信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
将所述基站发送所述指示信息的时刻确定为参考时间点。
具体地,所述确定单元1102根据所述获取单元1101获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
具体地,所述获取单元1101,具体用于接收基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述确定单元1102,具体用于根据所述获取单元1101获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
具体地,所述获取单元1101,具体用于接收基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述确定单元1102,具体用于根据所述获取单元1101获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
可选的,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
可选的,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
具体地,所述确定单元1102,具体用于根据所述参考时间点,将包含所述参考时间点的时间单元对应的时域资源作为参考资源。
具体地,所述确定单元1102,具体用于根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
具体地,所述确定单元1102根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
具体地,所述获取单元1101,还用于接收基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
所述确定单元1102,具体用于根据所述获取单元接收到的所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。
具体地,所述确定单元1102根据所述获取单元接收到的所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,包括:
从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
可选的,所述设定条件包含以下条件中的至少一个:
条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资 源作为参考资源。
具体地,所述发送单元1103,具体用于在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
具体地,所述发送单元1103通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
具体地,所述发送单元1103对确定的所述时域资源和/或所述频域资源进行测量,包括:
对确定的所述时域资源分别进行信道测量和/或干扰测量;
和/或,
对确定的所述频域资源分别进行信道测量和/或干扰测量。
具体地,所述发送单元1103,具体用于在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
具体地,所述获取单元1101,还用于接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
可选的,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
需要说明的是,本发明实施例中所述的确定设备可以是用户设备,也可以是其他终端设备,还可以是用户设备中的逻辑部件;可以通过软件方式实现,也可以通过硬件方式实现,这里不做限定。
图12为本发明实施例提供的一种信道状态信息的确定设备的结构示意 图。所述确定设备包括:发送单元1201和接收单元1202,其中:
发送单元1201,用于向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
接收单元1202,用于接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
具体地,所述发送单元1201,具体用于通过所述第一免许可频谱资源向所述UE发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
具体地,所述发送单元1201,具体用于通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
具体地,所述发送单元1201,具体用于通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
可选的,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
可选的,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
可选的,所述发送单元1201,还用于在向UE发送指示信息之前,向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
可选的,所述发送单元1201,还用于向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
可选的,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
需要说明的是,本发明实施例中所述的确定设备可以是基站设备,也可以是基站设备中的逻辑部件;可以通过软件方式实现,也可以通过硬件方式实现,这里不做限定。
图13为本发明实施例提供的一种信道状态信息的确定设备的结构示意图。所述确定设备包括:信号接收器1301、处理器1302和信号发射器1303,其中,信号接收器1301、处理器1302和信号发射器1303之间可以通过通信总线1304进行连接。
信号接收器1301,用于获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
处理器1302,用于根据获取到的所述指示信息,确定参考时间点;并根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息;
信号发射器1303,用于将确定的所述信道状态信息发送给所述基站。
具体地,所述信号接收器1301,具体用于接收所述基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
所述处理器1302,具体用于根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
具体地,所述处理器1302根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
将所述基站发送所述指示信息的时刻确定为参考时间点。
具体地,所述处理器1302根据获取到的所述指示信息中包含所述基站发 送所述指示信息的时刻,确定参考时间点,包括:
根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
具体地,所述信号接收器1301,具体用于接收所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述处理器1302根据获取到的所述指示信息,确定参考时间点,包括:
根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
具体地,所述信号接收器1301,具体用于接收所述基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
所述处理器1302根据获取到的所述指示信息,确定参考时间点,包括:
根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
可选的,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
可选的,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
可选的,所述处理器1302根据所述参考时间点,确定参考资源,包括:
根据所述参考时间点,将包含所述参考时间点的时间单元对应的时域资源作为参考资源。
可选的,所述处理器1302根据所述参考时间点,确定参考资源,包括:
根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
可选的,所述处理器1302根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
可选的,所述信号接收器1301,还用于接收所述基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
所述处理器1302根据所述参考时间点,确定参考资源,具体包括:
根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。
可选的,所述处理器1302根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,包括:
从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
可选的,所述设定条件包含以下条件中的至少一个:
条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息 中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资源作为参考资源。
可选的,所述处理器1302根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
可选的,所述处理器1302通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
可选的,所述处理器1302对确定的所述时域资源和/或所述频域资源进行测量,包括:
对确定的所述时域资源分别进行信道测量和/或干扰测量;
和/或,
对确定的所述频域资源分别进行信道测量和/或干扰测量。
可选的,所述处理器1302根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
可选的,所述处理器1302配置的免许可频谱资源对应信道的信道状态信息,包括:
接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
可选的,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
其中,处理器1302可以是一个通用中央处理器(CPU),微处理器,特定应用集成电路(application-specific integrated circuit,ASIC),或一个或多个用于控制本发明方案程序执行的集成电路。
图14为本发明实施例提供的一种信道状态信息的确定设备的结构示意图。所述确定设备可以包括:信号发射器1401和信号接收器1402,其中,信号发射器1401和信号接收器1402通过通信总线进行通信。
信号发射器1401,用于向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
信号接收器1402,用于接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
具体地,所述信号发射器1401,具体用于通过所述第一免许可频谱资源向所述UE发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
具体地,所述信号发射器1401,具体用于通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
具体地,所述信号发射器1401,具体用于通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
可选的,所述基站指示的时间单元包括以下信息中的至少一种:
所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
可选的,所述指示信息包括以下信息中的至少一种:
前导信号;
物理下行控制信道PDCCH承载的下行控制信息DCI;
增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
可选的,所述信号发射器1401,还用于在向UE发送指示信息之前,向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
可选的,所述信号发射器1401,还用于向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
可选的,所述特定信令包含以下信令形式中的至少一种:
物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
本实施例提供的确定设备,可以解决现有技术中存在的在免许可频谱资源机会使用的场景中,如何提升确定免许可频谱资源对应的信道的信道状态信息精度的问题。
本领域的技术人员应明白,本发明的实施例可提供为方法、装置(设备)、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (87)

  1. 一种信道状态信息的确定方法,其特征在于,包括:
    用户设备UE获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
    所述UE根据获取到的所述指示信息,确定参考时间点;
    所述UE根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;
    所述UE根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。
  2. 如权利要求1所述的确定方法,其特征在于,UE获取指示信息,包括:
    UE接收所述基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻;
    所述UE根据获取到的所述指示信息,确定参考时间点,包括:
    所述UE根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
  3. 如权利要求2所述的确定方法,其特征在于,所述UE根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
    所述UE将所述基站发送所述指示信息的时刻确定为参考时间点。
  4. 如权利要求2所述的确定方法,其特征在于,所述UE根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
    所述UE根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
  5. 如权利要求1所述的确定方法,其特征在于,UE获取指示信息,包括:
    UE接收所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
    所述UE从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
    所述UE根据获取到的所述指示信息,确定参考时间点,包括:
    所述UE根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
  6. 如权利要求1所述的确定方法,其特征在于,UE获取指示信息,包括:
    UE接收所述基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
    所述UE从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
    所述UE根据获取到的所述指示信息,确定参考时间点,包括:
    所述UE根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
  7. 如权利要求5或6所述的确定方法,其特征在于,所述基站指示的时间单元包括以下信息中的至少一种:
    所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
    所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
  8. 如权利要求1至7任一项所述的确定方法,其特征在于,所述指示信息包括以下信息中的至少一种:
    前导信号;
    物理下行控制信道PDCCH承载的下行控制信息DCI;
    增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
  9. 如权利要求1至8任一项所述的确定方法,其特征在于,所述UE根据所述参考时间点,确定参考资源,包括:
    所述UE根据所述参考时间点,将包含所述参考时间点的时间单元对应的时域资源作为参考资源。
  10. 如权利要求1至8任一项所述的确定方法,其特征在于,所述UE根据所述参考时间点,确定参考资源,包括:
    所述UE根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
  11. 如权利要求10所述的确定方法,其特征在于,所述UE根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
    所述UE根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
  12. 如权利要求1至8任一项所述的确定方法,其特征在于,所述方法还包括:
    所述UE接收所述基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
    所述UE根据所述参考时间点,确定参考资源,具体包括:
    所述UE根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。
  13. 如权利要求12所述的确定方法,其特征在于,所述UE根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,包括:
    所述UE从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考 资源。
  14. 如权利要求13所述的确定方法,其特征在于,所述设定条件包含以下条件中的至少一个:
    条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
    条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
    条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资源作为参考资源。
  15. 如权利要求12至14任一项所述的确定方法,其特征在于,所述UE根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
    所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
  16. 如权利要求15所述的确定方法,其特征在于,所述UE通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
    所述UE根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
    所述UE对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
  17. 如权利要求16所述的确定方法,其特征在于,所述UE对确定的所述时域资源和/或所述频域资源进行测量,包括:
    所述UE对确定的所述时域资源分别进行信道测量和/或干扰测量;
    和/或,
    所述UE对确定的所述频域资源分别进行信道测量和/或干扰测量。
  18. 如权利要求12至14任一项所述的确定方法,其特征在于,所述UE根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
    所述UE在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
  19. 如权利要求18所述的确定方法,其特征在于,所述UE配置的免许可频谱资源对应信道的信道状态信息,包括:
    所述UE接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
  20. 如权利要求19所述的确定方法,其特征在于,所述特定信令包含以下信令形式中的至少一种:
    物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
  21. 一种信道状态信息的确定方法,其特征在于,包括:
    基站向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
    所述基站接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
  22. 如权利要求21所述的确定方法,其特征在于,基站向UE发送指示信息,包括:
    所述基站通过所述第一免许可频谱资源向所述UE发送指示信息,其中, 所述指示信息中包含所述基站发送所述指示信息的时刻。
  23. 如权利要求21所述的确定方法,其特征在于,基站向UE发送指示信息,包括:
    所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
  24. 如权利要求21所述的确定方法,其特征在于,基站向UE发送指示信息,包括:
    所述基站通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
  25. 如权利要求23或24所述的确定方法,其特征在于,所述基站指示的时间单元包括以下信息中的至少一种:
    所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
    所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
  26. 如权利要求21至25任一项所述的确定方法,其特征在于,所述指示信息包括以下信息中的至少一种:
    前导信号;
    物理下行控制信道PDCCH承载的下行控制信息DCI;
    增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
  27. 如权利要求21至26任一项所述的确定方法,其特征在于,基站在向UE发送指示信息之前,所述方法还包括:
    所述基站向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
  28. 如权利要求21至26任一项所述的确定方法,其特征在于,所述方法还包括:
    所述基站向所述UE发送特定信令,其中,所述特定信令中包含配置的免 许可频谱资源对应信道的信道状态信息。
  29. 如权利要求28所述的确定方法,其特征在于,所述特定信令包含以下信令形式中的至少一种:
    物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
  30. 一种信道状态信息的确定设备,其特征在于,包括:
    获取单元,用于获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
    确定单元,用于根据所述获取单元获取到的所述指示信息,确定参考时间点;并根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;
    发送单元,用于根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,并将确定的所述信道状态信息发送给所述基站。
  31. 如权利要求30所述的确定设备,其特征在于,
    所述获取单元,具体用于接收基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻;
    所述确定单元,具体用于根据所述获取单元获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
  32. 如权利要求31所述的确定设备,其特征在于,所述确定单元根据所述获取单元获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
    将所述基站发送所述指示信息的时刻确定为参考时间点。
  33. 如权利要求31所述的确定设备,其特征在于,所述确定单元根据所述获取单元获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
    根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
  34. 如权利要求30所述的确定设备,其特征在于,
    所述获取单元,具体用于接收基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
    从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
    所述确定单元,具体用于根据所述获取单元获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
  35. 如权利要求30所述的确定设备,其特征在于,
    所述获取单元,具体用于接收基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
    从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
    所述确定单元,具体用于根据所述获取单元获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
  36. 如权利要求34或35所述的确定设备,其特征在于,所述基站指示的时间单元包括以下信息中的至少一种:
    所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
    所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
  37. 如权利要求30至36任一项所述的确定设备,其特征在于,所述指示信息包括以下信息中的至少一种:
    前导信号;
    物理下行控制信道PDCCH承载的下行控制信息DCI;
    增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
  38. 如权利要求30至37任一项所述的确定设备,其特征在于,
    所述确定单元,具体用于根据所述参考时间点,将包含所述参考时间点的时间单元对应的时域资源作为参考资源。
  39. 如权利要求30至37任一项所述的确定设备,其特征在于,
    所述确定单元,具体用于根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
  40. 如权利要求39所述的确定设备,其特征在于,所述确定单元根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
    根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
  41. 如权利要求30至37任一项所述的确定设备,其特征在于,
    所述获取单元,还用于接收基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
    所述确定单元,具体用于根据所述获取单元接收到的所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。
  42. 如权利要求41所述的确定设备,其特征在于,所述确定单元根据所述获取单元接收到的所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,包括:
    从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
  43. 如权利要求42所述的确定设备,其特征在于,所述设定条件包含以下条件中的至少一个:
    条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
    条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
    条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资 源作为参考资源。
  44. 如权利要求41至43任一项所述的确定设备,其特征在于,
    所述发送单元,具体用于在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
  45. 如权利要求44所述的确定设备,其特征在于,所述发送单元通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
    根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
    对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
  46. 如权利要求45所述的确定设备,其特征在于,所述发送单元对确定的所述时域资源和/或所述频域资源进行测量,包括:
    对确定的所述时域资源分别进行信道测量和/或干扰测量;
    和/或,
    对确定的所述频域资源分别进行信道测量和/或干扰测量。
  47. 如权利要求41至43任一项所述的确定设备,其特征在于,
    所述发送单元,具体用于在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
  48. 如权利要求47所述的确定设备,其特征在于,
    所述获取单元,还用于接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
  49. 如权利要求48所述的确定方法,其特征在于,所述特定信令包含以下信令形式中的至少一种:
    物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
  50. 一种信道状态信息的确定设备,其特征在于,包括:
    发送单元,用于向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
    接收单元,用于接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
  51. 如权利要求50所述的确定设备,其特征在于,
    所述发送单元,具体用于通过所述第一免许可频谱资源向所述UE发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
  52. 如权利要求50所述的确定设备,其特征在于,
    所述发送单元,具体用于通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
  53. 如权利要求50所述的确定设备,其特征在于,
    所述发送单元,具体用于通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
  54. 如权利要求52或53所述的确定设备,其特征在于,所述基站指示的时间单元包括以下信息中的至少一种:
    所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
    所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
  55. 如权利要求50至54任一项所述的确定设备,其特征在于,所述指示信息包括以下信息中的至少一种:
    前导信号;
    物理下行控制信道PDCCH承载的下行控制信息DCI;
    增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
  56. 如权利要求50至55任一项所述的确定设备,其特征在于,
    所述发送单元,还用于在向UE发送指示信息之前,向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
  57. 如权利要求50至55任一项所述的确定设备,其特征在于,
    所述发送单元,还用于向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
  58. 如权利要求57所述的确定方法,其特征在于,所述特定信令包含以下信令形式中的至少一种:
    物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
  59. 一种信道状态信息的确定设备,其特征在于,包括:
    信号接收器,用于获取指示信息,其中,所述指示信息用于指示基站已抢占到第一免许可频谱资源;
    处理器,用于根据获取到的所述指示信息,确定参考时间点;并根据所述参考时间点,确定参考资源,其中,所述参考资源用于确定所述基站已抢占到的所述第一免许可频谱资源对应信道的信道状态;根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息;
    信号发射器,用于将确定的所述信道状态信息发送给所述基站。
  60. 如权利要求59所述的确定设备,其特征在于,
    所述信号接收器,具体用于接收所述基站通过所述第一免许可频谱资源发送的指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻;
    所述处理器,具体用于根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点。
  61. 如权利要求60所述的确定设备,其特征在于,所述处理器根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
    将所述基站发送所述指示信息的时刻确定为参考时间点。
  62. 如权利要求60所述的确定设备,其特征在于,所述处理器根据获取到的所述指示信息中包含所述基站发送所述指示信息的时刻,确定参考时间点,包括:
    根据预设的参考时间点与所述基站发送所述指示信息的时刻之间的对应关系以及获取的所述基站发送所述指示信息的时刻,确定参考时间点。
  63. 如权利要求59所述的确定设备,其特征在于,
    所述信号接收器,具体用于接收所述基站通过许可频谱资源和/或已抢占到的第二免许可频谱资源发送的跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息;
    从接收到的所述跨载波信令中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
    所述处理器根据获取到的所述指示信息,确定参考时间点,包括:
    根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
  64. 如权利要求59所述的确定设备,其特征在于,
    所述信号接收器,具体用于接收所述基站通过所述第一免许可频谱资源发送的控制信息,其中,所述控制信息中包含所述基站发送的指示信息;
    从接收到的所述控制信息中获取所述基站发送的指示信息,其中,所述指示信息中包含所述基站指示的时间单元;
    所述处理器根据获取到的所述指示信息,确定参考时间点,包括:
    根据获取到的所述指示信息中包含的所述基站指示的时间单元,确定参考时间点。
  65. 如权利要求63或64所述的确定设备,其特征在于,所述基站指示的时间单元包括以下信息中的至少一种:
    所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
    所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
  66. 如权利要求59至65任一项所述的确定设备,其特征在于,所述指示信息包括以下信息中的至少一种:
    前导信号;
    物理下行控制信道PDCCH承载的下行控制信息DCI;
    增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
  67. 如权利要求59至66任一项所述的确定设备,其特征在于,所述处理器根据所述参考时间点,确定参考资源,包括:
    根据所述参考时间点,将包含所述参考时间点的时间单元对应的时域资源作为参考资源。
  68. 如权利要求59至67任一项所述的确定设备,其特征在于,所述处理器根据所述参考时间点,确定参考资源,包括:
    根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源。
  69. 如权利要求68所述的确定设备,其特征在于,所述处理器根据所述参考时间点,选择与所述参考时间点之间的距离小于设定第一阈值的时间单元对应的时域资源作为参考资源,包括:
    根据所述参考时间点,选择与所述参考时间点之间的距离最近的时间单元对应的时域资源作为参考资源。
  70. 如权利要求59至66任一项所述的确定设备,其特征在于,
    所述信号接收器,还用于接收所述基站发送的用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源;
    所述处理器根据所述参考时间点,确定参考资源,具体包括:
    根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资源,其中,所述参考资源中包含的时域资源对应的时间点滞后于所述参考时间点。
  71. 如权利要求70所述的确定设备,其特征在于,所述处理器根据所述资源信息中包含的时域资源和所述参考时间点对应的时域资源,确定参考资 源,包括:
    从所述参考时间点对应的时域资源到所述资源信息中包含的时域资源之间包含的所有时域资源中,选择满足设定条件的时域资源作为参考资源。
  72. 如权利要求71所述的确定设备,其特征在于,所述设定条件包含以下条件中的至少一个:
    条件一:与所述资源信息中包含的时域资源之间的距离满足设定第二阈值,且位于所述参考时间点对应的时域资源之后,且位于所述资源信息中包含的时域资源之前;
    条件二:与所述资源信息中包含的时域资源之间的距离大于与所述参考时间点对应的时域资源之间的距离;
    条件三:若确定的所述参考时间点个数为至少两个时,与所述资源信息中包含的时域资源之间距离小于设定门限值的所述参考时间点对应的时域资源作为参考资源。
  73. 如权利要求70至72任一项所述的确定设备,其特征在于,所述处理器根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
    在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值小于设定第三阈值时,通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息。
  74. 如权利要求73所述的确定设备,其特征在于,所述处理器通过对所述参考资源进行测量,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
    根据所述参考资源,确定所述参考资源包含的时域资源和频域资源;
    对确定的所述时域资源和/或所述频域资源进行测量,并根据测量结果,确定所述免许可频谱资源对应信道的信道状态信息。
  75. 如权利要求74所述的确定设备,其特征在于,所述处理器对确定的所述时域资源和/或所述频域资源进行测量,包括:
    对确定的所述时域资源分别进行信道测量和/或干扰测量;
    和/或,
    对确定的所述频域资源分别进行信道测量和/或干扰测量。
  76. 如权利要求70至72任一项所述的确定设备,其特征在于,所述处理器根据所述参考资源,确定所述第一免许可频谱资源对应信道的信道状态信息,包括:
    在所述参考资源中包含的时域资源对应的时间与所述资源信息中包含的时域资源对应的时间之间的时间差值不小于设定第三阈值时,将配置的免许可频谱资源对应信道的信道状态信息作为所述第一免许可频谱资源对应信道的信道状态信息。
  77. 如权利要求76所述的确定设备,其特征在于,所述处理器配置的免许可频谱资源对应信道的信道状态信息,包括:
    接收所述基站发送的特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
  78. 如权利要求77所述的确定设备,其特征在于,所述特定信令包含以下信令形式中的至少一种:
    物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
  79. 一种信道状态信息的确定设备,其特征在于,包括:
    信号发射器,用于向用户设备UE发送指示信息,其中,所述指示信息用于指示所述基站已抢占到第一免许可频谱资源;
    信号接收器,用于接收所述UE发送的信道状态信息,其中,所述信道状态信息中包含所述第一免许可频谱资源对应信道的信道状态信息,所述信道状态信息是所述UE根据接收到得指示信息确定参考时间点,并根据所述参考时间点确定参考资源,根据所述参考资源确定的。
  80. 如权利要求79所述的确定设备,其特征在于,
    所述信号发射器,具体用于通过所述第一免许可频谱资源向所述UE发送指示信息,其中,所述指示信息中包含所述基站发送所述指示信息的时刻。
  81. 如权利要求79所述的确定设备,其特征在于,
    所述信号发射器,具体用于通过许可频谱资源和/或已抢占到的第二免许可频谱资源向所述UE发送跨载波信令,其中,所述跨载波信令中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
  82. 如权利要求79所述的确定设备,其特征在于,
    所述信号发射器,具体用于通过所述第一免许可频谱资源向所述UE发送控制信息,其中,所述控制信息中包含所述基站发送的指示信息,所述指示信息中包含所述基站指示的时间单元。
  83. 如权利要求81或82所述的确定设备,其特征在于,所述基站指示的时间单元包括以下信息中的至少一种:
    所述基站利用所述第一免许可频谱资源进行数据传输的时刻;
    所述基站对UE利用所述第一免许可频谱资源进行数据调度的时刻。
  84. 如权利要求79至83一项所述的确定设备,其特征在于,所述指示信息包括以下信息中的至少一种:
    前导信号;
    物理下行控制信道PDCCH承载的下行控制信息DCI;
    增强物理下行控制信道EPDCCH承载的下行控制信息DCI。
  85. 如权利要求79至84任一项所述的确定设备,其特征在于,
    所述信号发射器,还用于在向UE发送指示信息之前,向所述UE发送用于上报信道状态信息的资源信息,其中,所述资源信息中包含时域资源。
  86. 如权利要求79至85任一项所述的确定设备,其特征在于,
    所述信号发射器,还用于向所述UE发送特定信令,其中,所述特定信令中包含配置的免许可频谱资源对应信道的信道状态信息。
  87. 如权利要求86所述的确定设备,其特征在于,所述特定信令包含以下信令形式中的至少一种:
    物理层信令、媒体接入控制MAC信令、无线资源控制RRC信令。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109474952A (zh) * 2017-09-08 2019-03-15 维沃移动通信有限公司 一种参考信号的处理方法和用户终端
CN110582119A (zh) * 2018-06-11 2019-12-17 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
WO2021031980A1 (zh) * 2019-08-16 2021-02-25 华为技术有限公司 无线链路监测方法及相关装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3644669A4 (en) * 2017-06-23 2020-06-17 Beijing Xiaomi Mobile Software Co., Ltd. DATA TRANSMISSION METHOD AND DEVICE, USER EQUIPMENT, AND BASE STATION
CN109995462B (zh) * 2017-12-29 2021-10-22 华为技术有限公司 一种数据传输格式的传输方法和装置
US10873967B2 (en) * 2018-02-02 2020-12-22 Qualcomm Incorporated Multi-carrier preemption indicator
CN110300419B (zh) * 2018-03-21 2022-10-25 大唐移动通信设备有限公司 一种控制ue通讯模式的方法及装置
JP6812487B2 (ja) * 2018-03-30 2021-01-13 華碩電腦股▲ふん▼有限公司 無線通信システムにおけるプリエンプション指示のサイズを決定するための方法およびデバイス
CN110351864B (zh) * 2018-04-04 2021-04-09 电信科学技术研究院有限公司 一种打断传输的指示方法、网络侧设备及终端
EP3876574A4 (en) * 2018-11-01 2022-06-29 Beijing Xiaomi Mobile Software Co., Ltd. Information transmission method and apparatus, and base station and terminal
CN111988236B (zh) * 2019-05-22 2022-07-29 华为技术有限公司 资源抢占的方法、装置及***

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103370896A (zh) * 2010-12-06 2013-10-23 交互数字专利控股公司 用于在免许可频谱中使能无线操作的方法
US20140341018A1 (en) * 2013-05-20 2014-11-20 Qualcomm Incorporated Techniques for selecting subframe type or for interleaving signals for wireless communications over unlicensed spectrum
CN104168662A (zh) * 2013-05-16 2014-11-26 华为技术有限公司 信道接入方法和接入设备
CN104486013A (zh) * 2014-12-19 2015-04-01 宇龙计算机通信科技(深圳)有限公司 信道检测方法、信道检测***、终端和基站

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8571086B2 (en) * 2004-04-02 2013-10-29 Rearden, Llc System and method for DIDO precoding interpolation in multicarrier systems
US9591644B2 (en) * 2013-08-16 2017-03-07 Qualcomm Incorporated Downlink procedures for LTE/LTE-A communication systems with unlicensed spectrum
US10034283B2 (en) * 2013-08-23 2018-07-24 Qualcomm Incorporated CSI and ACK reporting enhancements in LTE/LTE-A with unlicensed spectrum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103370896A (zh) * 2010-12-06 2013-10-23 交互数字专利控股公司 用于在免许可频谱中使能无线操作的方法
CN104168662A (zh) * 2013-05-16 2014-11-26 华为技术有限公司 信道接入方法和接入设备
US20140341018A1 (en) * 2013-05-20 2014-11-20 Qualcomm Incorporated Techniques for selecting subframe type or for interleaving signals for wireless communications over unlicensed spectrum
CN104486013A (zh) * 2014-12-19 2015-04-01 宇龙计算机通信科技(深圳)有限公司 信道检测方法、信道检测***、终端和基站

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109474952A (zh) * 2017-09-08 2019-03-15 维沃移动通信有限公司 一种参考信号的处理方法和用户终端
CN110582119A (zh) * 2018-06-11 2019-12-17 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN110582119B (zh) * 2018-06-11 2022-11-25 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
WO2021031980A1 (zh) * 2019-08-16 2021-02-25 华为技术有限公司 无线链路监测方法及相关装置

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