WO2016106671A1

WO2016106671A1 - Unlicensed frequency band measurement method and associated device

Info

Publication number: WO2016106671A1
Application number: PCT/CN2014/095869
Authority: WO
Inventors: 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: 2014-12-31
Filing date: 2014-12-31
Publication date: 2016-07-07
Also published as: CN107431938A

Abstract

Disclosed in the embodiments of the present invention is an unlicensed-frequency-band-based measurement method, comprising: a base station sends a reference signal on a first cell; the frequency band of the first cell is an unlicensed frequency band; within a second cell, the base station sends a measurement reference information notification to a user equipment, the frequency band of said second cell being a licensed frequency band, such that the user equipment measures, according to said measurement reference information notification, the reference signal of the first cell. Also disclosed in the embodiments of the present invention are a user equipment, base station, and communications system. Using the present invention, it is possible to accurately measure the reference signal of an unlicensed frequency band cell.

Description

Measurement method and related equipment based on unlicensed frequency band

Technical field

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.

Background technique

In the LTE (Long Term Evolution) communication system, 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). When 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. During the GAP, the UE can go. The frequency to be measured is measured and will be interrupted when the UE receives at the current operating frequency. Currently, the length and period of measurement of the GAP are configured by the base station to the UE. In the existing LTE communication system, 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. Depending on the carrier aggregation technology of LTE, 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. This feature that cannot be used continuously may cause the following problems in the LTE cell: 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.

Summary of the invention

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.

In order to solve the above technical problem, 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.

With reference to the first aspect, in a first possible implementation manner, before the sending, by the base station, the measurement reference information notification to the user equipment in the second cell, the method further includes:

When the base station receives the trigger message sent by the second base station, the step of transmitting, by the second base station, the measurement reference information to the user equipment by using the second cell, where the trigger message is used to trigger the base station to send the measurement reference Information notification.

In combination with the first aspect or the first possible implementation manner, in a second possible implementation manner, 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.

In conjunction with the first aspect or the first possible implementation manner, in a third possible implementation manner, the measurement reference information notification includes a notification of sending the reference signal.

In conjunction with the first aspect or the first possible implementation manner, in a fourth possible implementation manner, 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.

With reference to the first aspect, in a fifth possible implementation manner, before the sending, by the base station, the measurement reference information notification to the user equipment in the second cell, the method further includes:

When 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:

Receiving, by the user equipment, a measurement reference information notification sent by the associated base station on the second cell;

Determining, by the user equipment, the location of the GAP according to the measurement reference information, and measuring the reference signal in the GAP; wherein, after the reference signal is contending by the base station to the unlicensed frequency band, the non-authorized The frequency band is allocated to the associated first cell and sent on the first cell.

In combination with the second aspect, in the first possible implementation manner, 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.

With reference to the second aspect, in a second possible implementation manner, the measurement reference information notification includes a transmission notification of the reference signal or GAP location information.

With reference to the second aspect, in a third possible implementation manner, 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:

Determining, by the user equipment, a sending moment of the reference signal according to a sending moment of the sending notification of the reference signal, and determining a location of the GAP according to a sending moment of the reference signal; or

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.

With reference to the second possible implementation of the second aspect, in a fourth possible implementation, the location of the GAP information includes the GAP indication information, and the determining, by the user equipment, the location of the GAP according to the measurement reference information includes:

Determining, by the user equipment, a sending moment of the reference signal according to a sending moment of the GAP indication information, and determining a location of the GAP according to a sending moment of the reference signal; or

The user equipment determines the location of the GAP according to the indication information carried by the GAP indication information.

With reference to the second possible implementation of the second aspect, in a fifth possible implementation, the location, the location, the location, the location, the location,

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.

In combination with the third aspect, in the first possible implementation manner, 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.

In combination with the third aspect or the first possible implementation manner, in a second possible implementation manner, 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.

In conjunction with the third aspect or the first possible implementation manner, in a third possible implementation manner, the measurement reference information notification includes a notification of sending the reference signal.

In conjunction with the third aspect or the first possible implementation manner, in a fourth possible implementation manner, 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.

In combination with the third aspect, in a fifth possible implementation manner, 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.

In combination with the fourth aspect, in the first possible implementation manner, 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;

And a reading module, configured to determine, according to the configuration information, that the measurement reference information notification is read from the second cell.

With reference to the fourth aspect, in a second possible implementation manner, the measurement reference information notification includes a sending notification or a GAP location information of the reference signal.

With reference to the fourth aspect, in a third possible implementation manner, the measurement reference information notification includes a sending notification of the reference signal, where the measuring module is configured to:

Determining a transmission timing of the reference signal according to a transmission timing of the transmission notification of the reference signal, and determining a location of the GAP according to a transmission timing of the reference signal; or

And determining, according to the indication information carried in the sending notification, a sending moment of the reference signal, and determining a location of the GAP according to the sending moment of the reference signal.

With reference to the second possible implementation of the fourth aspect, in a fourth possible implementation, the GAP location information includes GAP indication information, and the measurement module is configured to:

Determining, according to a sending moment of the GAP indication information, a sending moment of the reference signal, and determining a location of the GAP according to a sending moment of the reference signal; or

Determining a location of the GAP according to the indication information carried by the GAP indication information.

With reference to the second possible implementation of the fourth aspect, in a fifth possible implementation, the GAP location information includes an offset, and the measurement module is configured to:

The position of the GAP is adjusted according to the offset and the GAP occurrence period.

Embodiments of the present invention have the following beneficial effects:

After the base station contends to the unlicensed frequency band, 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.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic flowchart of a method for measuring an unlicensed frequency band according to an embodiment of the present invention;

2 is a schematic diagram of a method for adjusting a position of a GAP according to an embodiment of the present invention;

3 is another schematic flowchart of a method for measuring an unlicensed frequency band according to an embodiment of the present invention;

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.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope 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. In the embodiment of the present invention, the method includes:

S101. The base station sends a reference signal on the first cell, where the frequency band of the first cell is an unlicensed frequency band.

Specifically, after determining that the unlicensed band needs to be used, 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. When the slot length (Time slot), the backoff counter is decremented by 1. When the random number generated by the backoff counter is reduced to 0, 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. For example, 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.

S102. 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.

Specifically, the frequency band of the second cell is a licensed frequency band, and 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.

Optionally, 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.

Specifically, 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.

Further, before the sending, by the base station, the measurement reference information notification to the user equipment in the second cell, the method further includes:

When the base station receives the trigger message sent by the second base station, the step of transmitting, by the second base station, the measurement reference information notification to the user equipment by using the second cell, where the notification message is used to trigger the The base station transmits the measurement reference information notification.

Specifically, when the base station receives the trigger message of the second base station, 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.

Further, the measurement reference information notification includes a notification of sending the reference signal.

Specifically, the reference signal sending notification includes 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.

For example, if the sending time of the reference signal transmission notification is the frame start time of the subframe P, the user equipment determines that the reference signal transmission time is a frame start time of the subframe N=P+D, where D is a predetermined Values, P, D are integers greater than or equal to zero. Alternatively, 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.

Optionally, if the user equipment obtains a sampling point that satisfies the measurement accuracy in a measurement sampling period, 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 Δt. 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. During the transmission time period, the user equipment selects the GAP with the duration of Δt in the transmission time period, assuming that the start time of the GAP is t, and the duration of the GAP Δt 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.

It can be understood that 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.

Further, the measurement reference information notification includes the GAP location information, and 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.

Specifically, 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. When the base station determines that the transmission time of the reference signal is different from the predetermined transmission time, 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.

For example, 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. After receiving the GAP location information, 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.

Further, 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.

Further, the reference signal includes a DRS or a common reference signal CRS.

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. In the embodiment of the present invention, the method includes:

S201. The user equipment receives the measurement reference information notification sent by the affiliated base station on the second cell.

Specifically, 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.

Further, 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. Optionally, before the second base station sends the configuration information to the user equipment, 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.

S202. The user equipment notifies the location of the GAP according to the measurement reference information, and measures the reference signal in the GAP.

Specifically, 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.

Specifically, 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.

For example, the sending time of the sending notification of the reference signal is the frame start time of the subframe P, and the user equipment determines that the reference signal sending time is the frame start time of the subframe N=P+D, where D For a predetermined value, P, D are integers greater than or equal to zero. Alternatively, 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.

It can be understood that the transmission time of the reference signal can be represented by using a subframe, and the user equipment is The sending time of the fixed reference signal is the starting boundary of the subframe N, and the duration of the sending time period of the predefined reference signal is the length of the M subframes, and 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.

Further, the measurement reference signal notification includes the GAP location information, and 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.

Optionally, the GAP location information includes a GAP offset, and 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. For example, 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. After receiving the GAP location information, 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.

Optionally, the GAP location information includes a GAP indication, and 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.

Optionally, the embodiment of the present invention further provides a scheduling method based on an unlicensed frequency band. In the embodiment of the present invention, the method includes:

S301. 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.

S302. 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.

Specifically, 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.

Further, 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;

Alternatively, 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. .

Specifically, 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. For example, 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. When 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.

Further, the indication information includes interference duration information and or interference strength information.

Acquiring the duration of the interference signal when the user equipment detects the interference signal; reporting the duration to the base station, so that the base station is in the duration of the user equipment The scheduling priority in the first cell is adjusted to be the lowest; or

Acquiring the interference strength of the interference signal when the user equipment detects the interference signal; reporting the interference strength to the base station, so that the base station is the user equipment with the highest interference strength in the first cell The scheduling priority is adjusted to the lowest.

Specifically, the user equipment can determine whether the interference is caused according to the channel environment of the unlicensed frequency band of the first cell. When 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.

For example, the user equipment receives the interference signal sent by other base stations, and reads the total duration from the preamble information of the interference signal to 9 ms, and the user equipment delays 2 ms to report to the base station, and the duration of the interference signal is 9 ms-2 ms=7 ms. The duration of the interference signal reported by the user equipment to the base station is 7 ms. After receiving the reported duration, the base station adjusts the scheduling priority of the user equipment to the minimum.

Optionally, 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 interference indication reported by the user equipment to the base station when the strength of the interference signal is greater than the preset strength threshold.

It should be noted that 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.

Referring to FIG. 4, 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.

Further, 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.

Further, the GAP location information includes a notification of sending the reference signal.

Further, 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.

Further, 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.

The embodiment of the present invention and the method embodiment 1 are based on the same concept, and the technical effects thereof are also the same. For the specific process, refer to the description of the method embodiment 1, and details are not described herein again.

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. In some embodiments of the present invention, 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, and the processor 61 is configured to call the program code stored in the memory 62 for performing the following operations:

Transmitting a reference signal on the first cell, where the frequency band of the first cell is an unlicensed frequency band;

Sending, by the second cell, a measurement reference information notification to the user equipment, where the frequency band of the second cell is an authorized frequency band, so that the user equipment notifies the reference signal of the first cell according to the measurement reference information. Make measurements.

Further, before the processor 61 performs the sending of the measurement reference information notification to the user equipment in the second cell, the method further includes:

When the trigger message sent by the second base station is received, 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.

Further, the processor 61 is further configured to execute:

Sending 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 reference information notification from the second cell. .

Further, before the sending, by the processor 61, the measurement reference information notification to the user equipment in the second cell, the method further includes:

When 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.

The embodiments of the present invention and the method embodiments are based on the same concept, and the technical effects thereof are also the same. For the specific process, refer to the description of the method embodiment 1, and details are not described herein again.

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.

Further, 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.

Further, the measurement reference information notification includes a notification of sending the reference signal or GAP location information.

Further, the measurement reference information notification includes a notification of sending the reference signal, and the measurement module 21 is configured to:

Further, the GAP location information includes GAP indication information, and the measurement module 21 is configured to:

Further, the measurement reference signal notification includes an offset, and the measurement module is configured to:

Further, 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;

When the reference signal is received, 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.

Further, 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;

And reporting the duration to the base station, so that the base station adjusts a scheduling priority of the user equipment in the first cell to a minimum in the duration; or

Obtaining an interference strength of the interference signal when an 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.

The embodiment of the present invention and the method embodiment 2 are based on the same concept, and the technical effects thereof are also the same. For the specific process, refer to the description of the second embodiment of the method, and details are not described herein again.

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. In the embodiment of the present invention, 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. In some embodiments of the present invention, 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, and the processor 71 is configured to call the program code stored in the memory 72 for performing the following operations:

Receiving, by the second cell, a measurement reference information notification sent by the associated base station;

Determining a location of the GAP according to the measurement reference information, and measuring the reference signal in the GAP; wherein, after the reference signal is contending by the base station to an unlicensed frequency band, assigning the unlicensed frequency band to the The first cell is transmitted on the first cell.

Further, the processor 71 is further configured to execute:

Receiving, by the receiving base station, configuration information, where the configuration information is used to indicate that the measurement reference information is sent in the second cell;

Determining, according to the configuration information, reading the measurement reference information notification from the second cell.

Further, the measurement reference information notification includes a transmission notification of the reference signal or GAP location information.

Further, the measurement reference information notification includes a transmission notification of the reference signal, and the processor 71 performs to determine, according to the measurement reference information, the location of the determined GAP, including:

Further, the GAP location information includes the GAP indication information, and the processor 71 performs the determining, according to the measurement reference information, that determining the location of the GAP includes:

Further, the measurement reference signal notification includes an offset, and the processor 71 performs, according to the measurement reference information notification, determining the location of the GAP, including:

Further, the processor 71 is further configured to execute:

Transmitting the first indication information to the base station, where the first indication message is used to indicate that the base station stops performing the user equipment in the first cell, when the duration of the reference signal is not greater than the duration threshold. Scheduling scheduling of the user equipment;

Further, the processor 71 is further configured to execute:

Obtaining a duration of the interference signal when an interference signal is detected;

The embodiment of the present invention and the method embodiment 2 are based on the same concept, and the technical effects thereof are also the same. For details, refer to the description of the method embodiment 2, and details are not described herein again.

FIG. 8 is a schematic structural diagram of a communication system according to an embodiment of the present invention. In the embodiment of the present invention, a communication system includes a base station and a user equipment, where

Sending, by the base station, a measurement reference information notification to the user equipment in the second cell;

Receiving, by the user equipment, a measurement reference information notification sent by the base station on the second cell;

Determining, by the user equipment, the location of the GAP according to the measurement reference information, and measuring the reference signal in the GAP;

The user equipment reports the measurement result to the base station.

The embodiment of the present invention and the method embodiment 1 and the method embodiment 2 are based on the same concept. For the specific process, refer to the foregoing embodiment, and details are not described herein again.

One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above disclosure is only a preferred embodiment of the present invention, and of course, the scope of the present invention is not limited thereto, and those skilled in the art can understand all or part of the process of implementing the above embodiments, and according to the present invention. The equivalent changes required are still within the scope of the invention.

Claims

A measurement method based on an unlicensed frequency band, comprising:

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, so that the user equipment notifies the location of the first cell according to the measurement reference information. The reference signal is measured.
The method according to claim 1, wherein the base station further includes: before sending the measurement reference information notification to the user equipment in the second cell, the method further includes:

When the base station receives the trigger message sent by the second base station, the step of transmitting, by the second base station, the measurement reference information to the user equipment by using the second cell, where the trigger message is used to trigger the base station to send the measurement reference Information notification.
The method of claim 1 or 2, further comprising:

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.
The method according to claim 1 or 2, wherein the measurement reference information notification includes a transmission notification of the reference signal.
The method according to claim 1 or 2, wherein the measurement reference information notification includes GAP location information, and the GAP location information is used to notify a location of the user equipment GAP.
The method according to claim 1, wherein the base station further includes: before sending the measurement reference information notification to the user equipment in the second cell, the method further includes:

When 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 measurement method based on an unlicensed frequency band, comprising:

Receiving, by the user equipment, a measurement reference information notification sent by the associated base station on the second cell;

Determining, by the user equipment, the location of the GAP according to the measurement reference information, and measuring the reference signal in the GAP; wherein, after the reference signal is contending by the base station to the unlicensed frequency band, the non-authorized The frequency band is allocated to the associated first cell and sent on the first cell.
The method of claim 7 further comprising:

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 method of claim 7, wherein the measurement reference information notification includes a transmission notification of the reference signal or GAP location information.
The method according to claim 7, wherein the measurement reference information notification includes a transmission notification of the reference signal, and the user equipment notifying the location of the GAP according to the measurement reference information includes:

Determining, by the user equipment, a sending moment of the reference signal according to a sending moment of the sending notification of the reference signal, and determining a location of the GAP according to a sending moment of the reference signal; or

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 method according to claim 9, wherein the location of the GAP includes the GAP indication information, and the user equipment notifying the location of the GAP according to the measurement reference information includes:

Determining, by the user equipment, a sending moment of the reference signal according to a sending moment of the GAP indication information, and determining a location of the GAP according to a sending moment of the reference signal; or

The user equipment determines the location of the GAP according to the indication information carried by the GAP indication information.
The method according to claim 9, wherein the location of the GAP includes an offset, and the user equipment notifying the location of the GAP according to the measurement reference information includes:

The user equipment adjusts the location of the GAP according to the offset and the GAP occurrence period.
A base station, comprising:

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 a licensed frequency band, so that the user equipment is notified according to the measurement reference information The reference signal of a cell is measured.
The base station according to claim 13, further comprising:

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 base station according to claim 13 or 14, further comprising:

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 base station according to claim 13 or 14, wherein said measurement reference information notification includes a transmission notification of said reference signal.
The base station according to claim 13 or 14, wherein the measurement reference information notification includes GAP location information, and the GAP location information is used to notify a location of the user equipment GAP.
The base station according to claim 13, further comprising:

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 user equipment, comprising:

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.
The user equipment of claim 19, further comprising:

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;

And a reading module, configured to determine, according to the configuration information, that the measurement reference information notification is read from the second cell.
The user equipment according to claim 19, wherein the measurement reference information notification includes a transmission notification of the reference signal or GAP location information.
The method according to claim 19, wherein the measurement reference information notification includes a transmission notification of the reference signal, and the measurement module is configured to:

Determining a transmission timing of the reference signal according to a transmission timing of the transmission notification of the reference signal, and determining a location of the GAP according to a transmission timing of the reference signal; or

And determining, according to the indication information carried in the sending notification, a sending moment of the reference signal, and determining a location of the GAP according to the sending moment of the reference signal.
The user equipment of claim 21, wherein the GAP location information comprises GAP indication information, and the measurement module is configured to:

Determining, according to a sending moment of the GAP indication information, a sending moment of the reference signal, and determining a location of the GAP according to a sending moment of the reference signal; or

Determining a location of the GAP according to the indication information carried by the GAP indication information.
The user equipment according to claim 21, wherein the GAP location information includes an offset, and the measurement module is configured to:

The position of the GAP is adjusted according to the offset and the GAP occurrence period.