WO2016106671A1 - Procédé de mesure de bande de fréquences sans licence et dispositif associé - Google Patents

Procédé de mesure de bande de fréquences sans licence et dispositif associé Download PDF

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Publication number
WO2016106671A1
WO2016106671A1 PCT/CN2014/095869 CN2014095869W WO2016106671A1 WO 2016106671 A1 WO2016106671 A1 WO 2016106671A1 CN 2014095869 W CN2014095869 W CN 2014095869W WO 2016106671 A1 WO2016106671 A1 WO 2016106671A1
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WIPO (PCT)
Prior art keywords
user equipment
gap
reference signal
cell
base station
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PCT/CN2014/095869
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English (en)
Chinese (zh)
Inventor
李秉肇
杨晓东
胡振兴
权威
苗金华
张戬
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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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/095869 priority Critical patent/WO2016106671A1/fr
Priority to CN201480036315.XA priority patent/CN107431938A/zh
Publication of WO2016106671A1 publication Critical patent/WO2016106671A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements

Definitions

  • the present invention relates to the field of testing, and in particular, to a measurement method and related equipment based on an unlicensed frequency band.
  • the reference signal measurement on the cell refers to the measurement of the CRS (Common Reference Signal) or the cell-specific reference signal of the cell, in order to obtain the appearance position of the reference signal.
  • the user equipment needs to detect the synchronization channel of the cell first, define the frame boundary according to the synchronization channel, and then determine the location (instant domain location and frequency domain location) of the CRS according to the frame boundary and the cell PCI (Physical Cell ID).
  • the UE performs the inter-frequency measurement, if the UE cannot support the signal of the current serving frequency and the signal of the different frequency to be measured, the UE needs to start the measurement gap to measure (GAP) the to-be-frequency.
  • GAP Measure
  • the UE can go.
  • the frequency to be measured is measured and will be interrupted when the UE receives at the current operating frequency.
  • the length and period of measurement of the GAP are configured by the base station to the UE.
  • the reference signal of the cell always appears continuously, and the user equipment can always obtain the reference signal transmitted at the corresponding time according to the measurement during the GAP.
  • the unlicensed frequency band can be allocated to the LTE cell. Since the unlicensed frequency band is a common spectrum resource, any organization or individual can use it. Data can be transmitted on unlicensed bands when the licensed band is idle. According to the characteristics of the unlicensed frequency band, the frequency band cannot be used continuously.
  • the discontinuous occupancy of the unlicensed frequency band may cause the reference signal of the cell to be continuously transmitted.
  • the UE cannot accurately determine the reference signal.
  • the appearance of the location causes the user equipment to be unable to measure the reference signal.
  • the technical problem to be solved by the embodiments of the present invention is to provide a measurement method based on an unlicensed frequency band.
  • the problem that the reference signal caused by the discontinuous use of the unlicensed frequency band in the prior art cannot be measured can be solved.
  • the first aspect of the embodiments of the present invention provides an unlicensed frequency band. Measurement methods, including:
  • the base station sends a reference signal on the first cell, where the frequency band of the first cell is an unlicensed frequency band;
  • the base station sends a measurement reference information notification to the user equipment in the second cell, where the frequency band of the second cell is an authorized frequency band, and the measurement reference information notification is used to notify the user equipment of the first cell.
  • the reference signal is measured.
  • the method before the sending, by the base station, the measurement reference information notification to the user equipment in the second cell, the method further includes:
  • the method further includes:
  • the base station sends configuration information to the user equipment, where the configuration information is used to indicate that the measurement reference information is sent in the second cell, so that the user equipment reads the measurement from the second cell.
  • Reference information notification is used to indicate that the measurement reference information is sent in the second cell, so that the user equipment reads the measurement from the second cell.
  • the measurement reference information notification includes a notification of sending the reference signal.
  • the measurement reference information notification includes a GAP location information, where the GAP location information is used to notify a location of the user equipment GAP.
  • the method before the sending, by the base station, the measurement reference information notification to the user equipment in the second cell, the method further includes:
  • the base station determines that the actual transmission time of the reference signal is not the predetermined transmission time, performing the step of the base station transmitting a measurement reference information notification to the user equipment in the second cell; wherein the predetermined transmission time is The occurrence period of the reference signal is determined, and the reference information is notified to include an offset of the actual transmission timing of the reference signal and the predetermined transmission timing.
  • a second aspect of the embodiments of the present invention provides a measurement method based on an unlicensed frequency band, including:
  • the method further includes:
  • the user equipment receives the configuration information sent by the base station, where the configuration information is used to indicate that the measurement reference information is sent in the second cell.
  • the user equipment determines to read the measurement reference information notification from the second cell according to the configuration information.
  • the measurement reference information notification includes a transmission notification of the reference signal or GAP location information.
  • the measurement reference information notification includes a sending notification of the reference signal, and the user equipment notifying, according to the measurement reference information, that determining a location of the GAP includes:
  • the user equipment determines a sending moment of the reference signal according to the indication information carried in the sending notification, and determines a location of the GAP according to the sending moment of the reference signal.
  • the location of the GAP information includes the GAP indication information
  • the determining, by the user equipment, the location of the GAP according to the measurement reference information includes:
  • the user equipment determines the location of the GAP according to the indication information carried by the GAP indication information.
  • the user equipment adjusts the location of the GAP according to the offset and the GAP occurrence period.
  • a third aspect of the embodiments of the present invention provides a base station, including:
  • An allocating module configured to send a reference signal on the first cell, where the frequency band of the first cell is an unlicensed frequency band;
  • a first sending module configured to send a measurement reference information notification to the user equipment in the second cell, where the frequency band of the second cell is an authorized frequency band, and the measurement reference information notification is used to notify the user equipment of the The reference signal of a cell is measured.
  • the method further includes:
  • the triggering module is configured to: when the triggering message sent by the second base station is received, instruct the first sending module to start working; where the triggering message is used to trigger the base station to send the measurement reference information notification.
  • the method further includes:
  • a configuration module configured to send configuration information to the user equipment, where the configuration information is used to indicate that the measurement reference information is sent in the second cell, so that the user equipment reads from the second cell The measurement reference information is notified.
  • the measurement reference information notification includes a notification of sending the reference signal.
  • the measurement reference information notification includes a GAP location information, where the GAP location information is used to notify a location of the user equipment GAP.
  • the method further includes:
  • a determining module configured to: when it is determined that the actual sending time of the reference signal is not a predetermined sending time, instructing the first sending module to start working; wherein the predetermined sending time is determined by an appearance period of the reference signal, where The reference information notification includes an offset of the actual transmission time and the predetermined transmission time of the reference signal.
  • a fourth aspect of the embodiments of the present invention provides a user equipment, including:
  • a receiving module configured to receive, by the second cell, a measurement reference information notification sent by the associated base station
  • a measuring module configured to notify, according to the measurement reference information, a location of the GAP, and measure the reference signal in the GAP; wherein, after the reference signal is contending by the base station to an unlicensed frequency band, the non- The licensed frequency band is allocated to the associated first cell and sent on the first cell of.
  • the method further includes:
  • a configuration information receiving module configured to receive, by the base station, configuration information, where the configuration information is used to indicate that the measurement reference information is sent in the second cell;
  • a reading module configured to determine, according to the configuration information, that the measurement reference information notification is read from the second cell.
  • the measurement reference information notification includes a sending notification or a GAP location information of the reference signal.
  • the measurement reference information notification includes a sending notification of the reference signal, where the measuring module is configured to:
  • the GAP location information includes GAP indication information
  • the measurement module is configured to:
  • the GAP location information includes an offset
  • the measurement module is configured to:
  • the position of the GAP is adjusted according to the offset and the GAP occurrence period.
  • the unlicensed frequency band is allocated to the first cell, and the reference signal is sent on the first cell, and the second cell informs the user equipment of the reference signal of the reference signal by the second cell of the licensed frequency band to make the user equipment
  • the location of the GAP is determined according to the measurement reference information, and the reference signal is accurately measured in the GAP to avoid the problem that the user equipment cannot measure the reference signal due to the discontinuity of the unlicensed frequency band.
  • FIG. 1 is a schematic flowchart of a method for measuring an unlicensed frequency band according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a method for adjusting a position of a GAP according to an embodiment of the present invention
  • FIG. 3 is another schematic flowchart of a method for measuring an unlicensed frequency band according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 7 is another schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method for measuring an unlicensed frequency band according to an embodiment of the present invention.
  • the method includes:
  • the base station sends a reference signal on the first cell, where the frequency band of the first cell is an unlicensed frequency band.
  • the base station intercepts the unlicensed band and triggers the rollback process, that is, the backoff counter is started to generate a random number to implement the rollback process, when the idle time of the unlicensed band reaches one.
  • the backoff counter is decremented by 1.
  • the base station competes for the unlicensed frequency band to obtain the use right of the unlicensed frequency band, and the base station occupies the unlicensed frequency band for a certain period of time according to the need, when the base station is occupying the unlicensed frequency band, Other base stations cannot use this unlicensed band to transmit data.
  • the base station allocates the unlicensed frequency band that is contending to the associated first cell, and transmits the reference signal on the first cell.
  • the reference signal may be sent simultaneously with the service data of the first cell, or only the reference signal may be sent, but the service data is not sent.
  • the base station determines the transmission time period of the reference signal according to the duration of the occupied unlicensed frequency band. The duration from the start time to the end time of the transmission time period indicates the duration of the reference signal, and the duration of the reference signal is a predefined time length.
  • the duration of the reference signal when only the reference signal is transmitted on the first cell, the duration of the reference signal may be 1 ms to 5 ms; when the reference signal and the service data are simultaneously transmitted, the duration of the reference signal may be 1 ms to 15 ms.
  • the base station determines to send the measurement reference information to the UE according to the duration of the reference signal, where the reference signal includes a DRS, a CSI-RS or a CRS.
  • the base station sends a measurement reference information notification to the user equipment in the second cell, where the frequency band of the second cell is an authorized frequency band, so that the user equipment notifies the first cell according to the measurement reference information.
  • the reference signal is measured.
  • the frequency band of the second cell is a licensed frequency band
  • the second cell may be a serving cell of the user equipment or a non-serving cell of the user equipment.
  • the base station sends a measurement reference information notification to the user equipment by using the second cell, and the measurement reference information is used to notify the user equipment of the transmission time period of the reference signal on the first cell, and the user equipment determines to send the reference signal according to the measurement reference information notification.
  • the time period is determined according to the transmission time period of the reference signal, and the user equipment measures the reference signal in the GAP.
  • the base station sends configuration information to the user equipment, where the configuration information is used to indicate that the measurement reference information is sent in the second cell, so that the user equipment reads from the second cell.
  • the measurement reference information is notified.
  • the base station needs to notify the user equipment that the measurement reference information notification for the first cell is sent on the second cell, so that the user equipment receives the sent measurement reference information notification from the second cell.
  • the method further includes:
  • the triggering message triggers the base station to start sending the measurement reference information notification, where the second base station is a base station where the serving cell of the user equipment is located.
  • the trigger message may carry a cell list that needs to send the measurement reference information notification, where the cell list includes at least one cell.
  • the measurement reference information notification includes a notification of sending the reference signal.
  • the reference signal sending notification includes a sending notification of the reference signal
  • the user equipment determines the sending time period of the reference signal according to the sending notification of the reference signal, so that the user equipment starts the GAP according to the sending time period, and performs the reference signal in the GAP. measuring.
  • the user equipment may determine a sending moment of the reference signal according to a sending moment of the sending notification of the reference signal, or determine a sending moment of the reference signal according to the indication information carried in the sending notification.
  • the transmission notification of the reference signal carries a transmission moment of the reference signal, where the transmission time is an absolute time or a relative time relative to a transmission time of the reference signal.
  • the notification of the reference signal is received, and the GAP may not be started; if the user equipment is in a measurement sampling period If sufficient sampling points satisfying the measurement accuracy have not been obtained, a notification of the transmission of the reference signal is received, and the GAP is started for measurement.
  • the duration of the GAP is predefined by the base station configuration or protocol and is a fixed value.
  • the duration of the GAP is ⁇ t.
  • the base station and the user equipment know the duration of the GAP in advance, and the base station sends a notification of the transmission of the reference signal to the user equipment, so that the user equipment determines the transmission moment of the reference signal, and the user equipment determines the reference signal according to the sending time and the ending time of the reference signal.
  • the user equipment selects the GAP with the duration of ⁇ t in the transmission time period, assuming that the start time of the GAP is t, and the duration of the GAP ⁇ t determines that the GAP is: the start time t to the end time t+ ⁇
  • the time period formed by t the user equipment measures the reference signal on the first cell during the time period.
  • the sending moment of the reference signal can be represented by using a subframe, and the sending moment of the reference signal determined by the user equipment is the starting boundary of the subframe N, and the predefined reference signal is sent.
  • the duration of the inter-segment is the length of the M subframes, and the user equipment determines the location of the transmission period of the reference signal according to the start boundary value of the subframe N: the start period of the sub-frame N+M of the subframe N, the user The device starts the GAP during the transmission period and measures the reference signal on the first cell within the GAP.
  • the measurement reference information notification includes the GAP location information
  • the base station sends the GAP location information to the user equipment by using the second cell, where the GAP location information is used by the user equipment to determine the location of the GAP, so that the user equipment is The reference signal is measured within the GAP.
  • the GAP location information includes GAP indication information or GAP offset information.
  • the method further includes:
  • the base station determines that the actual transmission time of the reference signal is not the predetermined transmission time, performing the step of the base station transmitting a measurement reference information notification to the user equipment in the second cell; wherein the predetermined transmission time is The occurrence period of the reference signal is determined, and the reference information is notified to include an offset of the actual transmission timing of the reference signal and the predetermined transmission timing.
  • the base station determines the actual transmission timing of the reference signal and the predetermined transmission timing of the reference signal, and the predetermined transmission timing of the reference signal is determined by the appearance period of the reference signal.
  • the base station calculates an offset between the actual transmission time of the reference signal and the predetermined transmission time,
  • the base station configures the appearance period of the GAP for the user equipment. If the base station competes for the unlicensed frequency band at a specified time and transmits the reference signal at a predetermined time, the user equipment can measure the reference signal within the specified GAP. If the unlicensed frequency band has been busy in the busy state, the base station cannot compete for the unlicensed frequency band at the specified time, and the reference signal cannot be transmitted at the specified time. The actual transmission time of the reference signal will lag behind the predetermined transmission time, and the reference signal cannot be scheduled to be transmitted. At the moment, the base station needs to notify the user equipment to adjust the location of the GAP so that the reference signal on the first cell can be measured within the appropriate GAP.
  • the GAP configuration information of the user equipment specifies a GAP period of 80 ms, and the location of the GAP is: subframe 0-6 of frame number 28.
  • the user equipment adjusts the location of the GAP to : Frame 29 0-6 subframe, UE does not start GAP in subframe 0-6 of frame number 28, but starts GAP in subframe 0-6 of frame number 29.
  • the GAP duration can be a predefined value, such as 6ms, or based on the configuration of the base station.
  • the method further includes:
  • the serving base station of the user equipment sends the GAP period information, where the GAP period information is used by the UE to calculate a predetermined location where the GAP appears according to the GAP period information.
  • the serving base station of the user equipment may be a base station to which the first cell belongs or be different from the base station to which the first cell belongs. If the serving base station of the user equipment is different from the base station to which the first cell belongs, before the base station to which the first cell belongs, send the GAP period information to the serving base station of the first user, And causing the serving base station of the first user to send the GAP period information to the user equipment.
  • the reference signal includes a DRS or a common reference signal CRS.
  • the base station After the base station competes for the unlicensed frequency band, the base station allocates the unlicensed frequency band to the first cell, and sends a reference signal on the first cell, and the base station notifies the second cell of the licensed frequency band to notify the user equipment of the reference signal measurement.
  • the reference information is notified to enable the user equipment to determine the location of the GAP according to the measurement reference information, and accurately measure the reference signal in the GAP to avoid the problem that the user equipment cannot measure the reference signal due to the discontinuity of the unlicensed frequency band.
  • FIG. 3 is a schematic flowchart of another method for measuring an unlicensed frequency band according to an embodiment of the present invention.
  • the method includes:
  • the user equipment receives the measurement reference information notification sent by the affiliated base station on the second cell.
  • the user equipment determines to measure the first cell, and determines that the measurement reference information notification message of the second cell is sent on the second cell, where the frequency band of the first cell is an unlicensed frequency band, and the frequency band of the second cell is authorized.
  • the second cell may be a serving cell of the user equipment or a non-serving cell of the user equipment.
  • the user equipment receives the measurement reference information notification sent by the base station by using the second cell.
  • the user equipment receives the configuration information of the base station, where the configuration information indicates that the measurement reference information for the first cell is notified that the bearer is on the second cell, and the configuration information of the user equipment is determined to pass the
  • the second cell receives the measurement reference information notification sent by the base station for the first cell.
  • the base station that sends the configuration information may be a base station where the first cell is located, or a second base station different from a base station where the first cell is located, where the second base station is a serving base station of the UE.
  • receiving indication information of a base station where the first cell is located where the indication information indicates that the measurement reference information for the first cell is notified to the bearer. On the second cell.
  • the user equipment notifies the location of the GAP according to the measurement reference information, and measures the reference signal in the GAP.
  • the user equipment notifies the location of the GAP according to the measurement reference information, and measures the reference signal in the GAP. After the reference signal is contending by the base station to the unlicensed frequency band, the unlicensed frequency band is allocated to the associated first cell and sent on the first cell.
  • the measurement reference information notification includes a notification of sending the reference signal.
  • the reference signal information is notified to include a sending notification of the reference signal, and the user equipment determines the sending time period of the reference signal according to the sending notification of the reference signal, so that the user equipment starts the GAP according to the sending time period, and performs the reference signal in the GAP. measuring.
  • the user equipment may determine a sending moment of the reference signal according to a sending moment of the sending notification of the reference signal, or determine a sending moment of the reference signal according to the indication information carried in the sending notification.
  • the sending time of the sending notification of the reference signal is the frame start time of the subframe P
  • P, D are integers greater than or equal to zero.
  • the transmission notification of the reference signal carries a transmission moment of the reference signal, where the transmission time is an absolute time or a relative time relative to a transmission time of the reference signal.
  • the notification of the reference signal is received, and the GAP may not be started; if the user equipment is in a measurement sampling period If sufficient sampling points satisfying the measurement accuracy have not been obtained, a notification of the transmission of the reference signal is received, and the GAP is started for measurement.
  • the duration of the GAP is predefined by the base station configuration or protocol and is a fixed value.
  • the duration of the GAP is ⁇ t.
  • the base station and the user equipment know the duration of the GAP in advance, and the base station sends a notification of the transmission of the reference signal to the user equipment, so that the user equipment determines the transmission moment of the reference signal, and the user equipment determines the reference signal according to the sending time and the ending time of the reference signal.
  • the user equipment selects the GAP with the duration of ⁇ t in the transmission time period, assuming that the start time of the GAP is t, and the duration of the GAP ⁇ t determines that the GAP is: the start time t to the end time t+ ⁇
  • the time period formed by t the user equipment measures the reference signal on the first cell during the time period.
  • the transmission time of the reference signal can be represented by using a subframe
  • the user equipment is The sending time of the fixed reference signal is the starting boundary of the subframe N
  • the duration of the sending time period of the predefined reference signal is the length of the M subframes
  • the location of the sending time period of the determining reference signal by the user equipment is:
  • the start boundary of the subframe N is a time period consisting of the start boundary of the subframe N+M
  • the user equipment starts the GAP in the transmission period, and measures the reference signal on the first cell in the GAP.
  • the measurement reference signal notification includes the GAP location information
  • the user equipment notifying the location of the GAP according to the measurement reference information includes:
  • the user equipment determines the location of the GAP according to the GAP location information.
  • the GAP location information includes a GAP offset
  • the support device determines a location of the GAP according to the GAP offset and the predetermined GAP location.
  • the predetermined GAP location is determined by the GAP period configuration information, where the user equipment receives the GAP period configuration information sent by the serving base station.
  • the GAP configuration information of the user equipment specifies a GAP period of 80 ms, and the location of the GAP is: subframe 0-6 of frame number 28.
  • the user equipment adjusts the location of the GAP to : Frame 29 0-6 subframe, UE does not start GAP in subframe 0-6 of frame number 28, but starts GAP in subframe 0-6 of frame number 29.
  • the GAP duration can be a predefined value, such as 6ms, or based on the configuration of the base station.
  • the GAP location information includes a GAP indication
  • the user equipment determines a location of the GAP according to the GAP indication, and measures the reference signal in the GAP.
  • the user equipment may determine the location of the GAP according to the sending moment indicated by the GAP, or determine the location of the reference GAP according to the indication information carried in the GAP indication.
  • the embodiment of the present invention further provides a scheduling method based on an unlicensed frequency band.
  • the method includes:
  • the user equipment receives a base station configuration, where the configuration includes at least two working cells, at least one first cell uses an unlicensed carrier, and at least one second cell uses an authorized carrier.
  • the user equipment sends the indication information to the base station by using the second cell, so that the base station determines the scheduling of the first cell according to the indication information.
  • the UE determines the indication information according to the reception condition of the first cell reference signal or the interference detection condition of the carrier where the first cell is located, and reports the indication information to the base station.
  • the indication information includes that the scheduling indication cannot be continuously received. Sending the first indication information to the base station when the duration of the reference signal that is not received by the user equipment is greater than the duration threshold, The indication message is used to indicate that the base station stops scheduling the user equipment in the first cell by scheduling the user equipment;
  • the indication information includes a resume receiving scheduling indication. And sending, by the user equipment, the second indication message to the base station, where the second indication message is used to indicate that the base station resumes scheduling the user equipment in the first cell. .
  • the base station since the base station needs to use the unlicensed frequency band in a competitive manner, if the unlicensed frequency band is always in a busy state, the base station cannot obtain the use right of the unlicensed frequency band, and the reference signal cannot be sent on the first cell, and the user equipment exceeds a certain period of time. If the reference signal is not received, the time-frequency tracking fails, and the user equipment sends the first indication information to the base station, where the first indication information is used to indicate that the base station stops scheduling the user equipment in the first cell, if the user equipment receives the reference signal again. The user equipment sends the second indication information to the base station, where the second indication information is used to indicate that the base station resumes scheduling the user equipment in the first cell.
  • the user equipment when receiving the reference signal, the user equipment starts a timer, and the timer is set with a timing duration, and the timing duration is a duration threshold.
  • the timer expires, it is considered that the time-frequency tracking fails, and the user equipment sends the first indication information to the base station, and when the user equipment receives the reference signal again, sends the second indication information to the base station.
  • the setting of the duration threshold may be configured by the user equipment or configured by a network side device such as a base station or a mobility management entity.
  • the indication information includes interference duration information and or interference strength information.
  • the user equipment can determine whether the interference is caused according to the channel environment of the unlicensed frequency band of the first cell.
  • the user equipment detects a signal sent by another base station or the power intensity of the user equipment detected on the channel is higher than a predetermined threshold, the signal is considered as an interference signal, and it is determined that it is interfered.
  • the user equipment may obtain the total duration of the signal from the preamble information in the signals sent by other base stations, and may also read the total duration of the signal from other messages sent by other base stations, and the total duration of the user equipment according to the interference signal.
  • the reporting delay of the user equipment to determine the interference signal Continued time.
  • the duration of the interference signal reported by the user equipment to the base station is 7 ms.
  • the base station adjusts the scheduling priority of the user equipment to the minimum.
  • the user equipment detects the interference signal, and the strength of the interference signal is determined to be an interference signal when the strength of the interference signal is greater than a preset strength threshold, where the strength threshold is predefined by the user equipment or configured by the receiving network side device.
  • the intensity threshold may be set according to the type of the interfering base station, and different types of interfering base stations correspond to different intensities. For example, the strength threshold of the WLAN interfering base station and the strength threshold of the LTE interfering base station are not the same.
  • the user equipment can directly report the interference strength of the interference signal to the base station, and the base station adjusts the scheduling priority of the user equipment with the highest interference intensity to the lowest according to the interference strength of each user equipment in the first cell.
  • a base station is provided.
  • the base station is used to implement an unlicensed frequency band-based measurement method according to Embodiment 1 of the present invention.
  • the base station includes: an allocation module 10 and a first sending module 11.
  • the allocating module 10 is configured to send a reference signal on the first cell, where the frequency band of the first cell is an unlicensed frequency band;
  • the first sending module 11 is configured to send, by using the second cell, a measurement reference information notification to the user equipment, where the frequency band of the second cell is a licensed frequency band, so that the user equipment is notified according to the measurement reference information.
  • the reference signal of the first cell is measured.
  • the base station further includes:
  • the triggering module 12 is configured to: when the trigger message sent by the second base station is received, instruct the first sending module to start working; where the triggering message is used to trigger the base station to send the measurement reference information notification.
  • the base station further includes:
  • the configuration module 13 is configured to send configuration information to the user equipment, where the configuration information is used to refer to The measurement reference information notification is sent at the second cell to enable the user equipment to read the measurement reference information notification from the second cell.
  • the GAP location information includes a notification of sending the reference signal.
  • the measurement reference information notification includes GAP location information, and the GAP location information is used to notify the location of the user equipment GAP.
  • the base station further includes:
  • the determining module 14 is configured to: when the actual sending time of the reference signal is not a predetermined sending time, instruct the first sending module to start working; wherein the predetermined sending time is determined by an appearance period of the reference signal, where The reference information notification includes an offset of the actual transmission time and the predetermined transmission time of the reference signal.
  • FIG. 5 is a schematic diagram of another structure of a base station according to an embodiment of the present invention.
  • the base station is configured to perform an unlicensed frequency band-based measurement method according to the first embodiment, where the base station includes: a processor 61, a memory 62, and The communication interface 63, the number of the processors 61 in the base station may be one or more, and FIG. 5 takes a processor as an example.
  • the processor 61, the memory 62, and the communication interface 63 may be connected by a bus or other means, and the bus connection is taken as an example in FIG.
  • the memory 62 stores a set of program codes
  • the processor 61 is configured to call the program code stored in the memory 62 for performing the following operations:
  • the method further includes:
  • the step of sending the measurement reference information notification to the user equipment by using the second cell is performed; wherein the trigger message is used to trigger the base station to send the measurement reference information notification.
  • processor 61 is further configured to execute:
  • the measurement reference information notification includes a notification of sending the reference signal.
  • the measurement reference information notification includes GAP location information, and the GAP location information is used to notify the location of the user equipment GAP.
  • the method further includes:
  • the determining that the actual transmission time of the reference signal is not the predetermined transmission time performing the step of transmitting the measurement reference information notification to the user equipment in the second cell; wherein the predetermined transmission time is determined by the reference signal The occurrence period is determined, and the reference information notification includes an offset of the actual transmission timing of the reference signal and the predetermined transmission timing.
  • FIG. 6 is a schematic structural diagram of a user equipment, where the user equipment is used to perform an unlicensed frequency band-based measurement method according to an embodiment of the present disclosure, where the user equipment includes: a receiving module 20 and a measurement module. twenty one.
  • the receiving module 20 is configured to receive, by the second cell, a measurement reference information notification sent by the associated base station;
  • the measuring module 21 is configured to notify the location of the GAP according to the measurement reference information, and measure the reference signal in the GAP; wherein, after the reference signal is contending by the base station to the unlicensed frequency band, The unlicensed frequency band is allocated to the associated first cell and sent on the first cell.
  • the user equipment further includes:
  • the configuration information receiving module 22 is configured to receive, by the base station, configuration information, where the configuration information is used to indicate that the measurement reference information is sent in the second cell.
  • the reading module 23 is configured to determine, according to the configuration information, that the measurement reference information notification is read from the second cell.
  • the measurement reference information notification includes a notification of sending the reference signal or GAP location information.
  • the measurement reference information notification includes a notification of sending the reference signal
  • the measurement module 21 is configured to:
  • the GAP location information includes GAP indication information
  • the measurement module 21 is configured to:
  • the measurement reference signal notification includes an offset
  • the measurement module is configured to:
  • the position of the GAP is adjusted according to the offset and the GAP occurrence period.
  • the user equipment further includes: a first scheduling indication module 24, configured to send first indication information to the base station when the duration of the non-received reference signal is greater than a duration threshold, the first indication The message is used to indicate that the base station stops scheduling the user equipment to be scheduled by the user equipment in the first cell;
  • the second indication message is sent to the base station, where the second indication message is used to indicate that the base station resumes scheduling for the user equipment in the first cell.
  • the user equipment further includes: a second scheduling indication module 25, configured to acquire a duration of the interference signal when the interference signal is detected;
  • the interference strength is reported to the base station, so that the base station adjusts the scheduling priority of the user equipment with the highest interference strength in the first cell to the lowest.
  • FIG. 7 is a schematic diagram of another structure of a user equipment according to an embodiment of the present disclosure, which is used to perform the method for measuring an unlicensed frequency band according to the second embodiment.
  • the user equipment includes:
  • the number of processors 71 in the user equipment may be one or more, and FIG. 7 takes a processor as an example.
  • the processor 71, the memory 72, and the communication interface 73 may be connected by a bus or other means, and the bus connection is taken as an example in FIG.
  • the memory 72 stores a set of program codes
  • the processor 71 is configured to call the program code stored in the memory 72 for performing the following operations:
  • processor 71 is further configured to execute:
  • the measurement reference information notification includes a transmission notification of the reference signal or GAP location information.
  • the measurement reference information notification includes a transmission notification of the reference signal
  • the processor 71 performs to determine, according to the measurement reference information, the location of the determined GAP, including:
  • the user equipment determines a sending moment of the reference signal according to the indication information carried in the sending notification, and determines a location of the GAP according to the sending moment of the reference signal.
  • the GAP location information includes the GAP indication information
  • the processor 71 performs the determining, according to the measurement reference information, that determining the location of the GAP includes:
  • the user equipment determines the location of the GAP according to the indication information carried by the GAP indication information.
  • the measurement reference signal notification includes an offset
  • the processor 71 performs, according to the measurement reference information notification, determining the location of the GAP, including:
  • the position of the GAP is adjusted according to the offset and the GAP occurrence period.
  • processor 71 is further configured to execute:
  • the second indication message is sent to the base station, where the second indication message is used to indicate that the base station resumes scheduling for the user equipment in the first cell.
  • processor 71 is further configured to execute:
  • the interference strength is reported to the base station, so that the base station adjusts the scheduling priority of the user equipment with the highest interference strength in the first cell to the lowest.
  • FIG. 8 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • a communication system includes a base station and a user equipment, where
  • the base station sends a reference signal on the first cell, where the frequency band of the first cell is an unlicensed frequency band;
  • the user equipment reports the measurement result to the base station.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne, dans des modes de réalisation, un procédé de mesure basé sur une bande de fréquences sans licence, comprenant : une station de base envoie un signal de référence sur une première cellule ; la bande de fréquences de la première cellule est une bande de fréquences sans licence ; au sein d'une seconde cellule, la station de base envoie une notification d'informations de référence de mesure à un équipement d'utilisateur, la bande de fréquences de ladite seconde cellule étant une bande de fréquences sous licence, de sorte que l'équipement d'utilisateur mesure, conformément à ladite notification d'informations de référence de mesure, le signal de référence de la première cellule. L'invention concerne également, dans des modes de réalisation, un équipement d'utilisateur, une station de base et un système de communications. À l'aide de la présente invention, il est possible de mesurer précisément le signal de référence d'une cellule à bande de fréquences sans licence.
PCT/CN2014/095869 2014-12-31 2014-12-31 Procédé de mesure de bande de fréquences sans licence et dispositif associé WO2016106671A1 (fr)

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PCT/CN2014/095869 WO2016106671A1 (fr) 2014-12-31 2014-12-31 Procédé de mesure de bande de fréquences sans licence et dispositif associé
CN201480036315.XA CN107431938A (zh) 2014-12-31 2014-12-31 一种基于非授权频段的测量方法和相关设备

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