WO2017049909A1 - Unlicensed carrier measurement gap configuration and measurement method, and corresponding base station and terminal - Google Patents

Abstract

Disclosed are an unlicensed carrier measurement gap configuration and a measurement method, and a corresponding base station and a terminal. The terminal receives, before a configured measurement gap or before a time point before the measurement gap, an instruction, sent by a base station, of the cell successfully preempting resources; and performs data transceiving or performs measurement in the measurement gap according to a processing policy for the situation of the measurement gap overlapping an occupied period or instruction information of the base station. The base station configures for a terminal a licensed carrier measurement gap and an unlicensed carrier measurement gap, and sends configuration information of the licensed carrier measurement gap and configuration information of the unlicensed carrier measurement gap to the terminal. This article achieves effective configuration of the licensed carrier measurement gap and the unlicensed carrier measurement gap of the terminal, and the treatment when the measurement gap overlaps an occupied period.

Description

Unlicensed carrier measurement gap configuration and measurement method and corresponding base station and terminal Technical field

The present application relates to, but is not limited to, the field of wireless communications, and more particularly, to an unlicensed carrier measurement gap configuration and measurement method, and a corresponding base station and terminal.

Background technique

The Long Term Evolution Advanced (LTE/LTE-A) system is a fourth-generation mobile communication standard developed by the 3GPP (The 3rd Generation Partnership Project). LTE currently works mainly on the licensed spectrum and supports multiple bandwidth allocations such as 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz. At the same time, in order to support a wider frequency band, LTE-A introduces Carrier Aggregation (CA), which aggregates multiple consecutive or discrete carriers to form a wider spectrum. Through carrier aggregation, LTE-A can support up to 100MHz bandwidth.

As data services continue to grow, licensed spectrum resources become more crowded and tight. Therefore, the LTE introduces the Licensed Assisted Access (LAA) technology, which is to use the carrier aggregation and other methods to extend the LTE/LTE-A system to the unlicensed spectrum resources.

However, in the unlicensed spectrum, in addition to the LTE system, there are systems such as WiFi and Radar. In order to be fair, different regions have different spectrum control requirements, including Transmit Power Control (TPC) and Dynamic Frequency Selection (DFS). ) and listen to the first (LBT), etc., each system needs to use a competitive way to obtain resources, which requires each system to listen, measure, and even identify whether other systems or other network nodes have occupied channel resources.

The measurement metric of the WiFi system is mainly a Received Signal Strength Indicator (RSSI), which indicates that the receiver receives the broadband received power on the channel bandwidth. Under no-load, measuring and examining the average value of RSSI is the most important means of judging interference. If the RSSI value is found to be significantly higher than a certain threshold, then there must be reverse link interference, which means that the channel is currently occupied by other systems or other network nodes.

The measurement of the LTE system mainly includes channel state information measurement and radio resource management (RRM) measurement. The measurement of channel state information mainly includes common reference signal (CRS) measurement and channel state information measurement reference signal (CSI-RS) measurement, and RRM measurement mainly includes: reference signal received power (RSRP, Reference Signal Receiving Power) measurement, reception The Signal Strength Indicator (RSSI) measurement and the Reference Signal Receiving Quality (RSRQ) measurement. The RSRP measurement is defined as the average of the linear power received on all resource elements (REs) carrying the CRS within the measurement frequency bandwidth. The RSSI measurement is defined as the average of the linear total received power of the Orthogonal Frequency Division Multiplexing (OFDM) symbols in which the CRS antenna port 0 is located within the measurement frequency bandwidth, where there are N resource blocks (RBs) within the measurement frequency bandwidth. The RSSI includes all sources received by the UE, including a co-channel service cell, a co-channel non-serving cell, neighbor cell interference, and thermal noise. If the higher layer configuration RSSI is measured in certain subframe sets, the RSSI should use all OFDM symbols within the set of subframes for measurement. RSRQ is defined as: RSRQ=N*RSRP/RSSI.

In particular, in order to perform inter-frequency measurements and/or different system measurements, the base station needs to configure a measurement gap (Measurement Gap) for the terminal. A measurement gap corresponds to a time period in the time domain. During the measurement gap, the UE pauses data transmission and reception at the current working frequency point and the serving cell, and switches to the frequency point to be measured to perform related measurement on the target cell. In the prior art of LTE, the measurement gap occurs periodically, and there are two measurement gap periods of 40 ms and 80 ms, and the duration of each measurement gap is 6 ms. However, for the configuration of the unlicensed carrier measurement gap in the LAA system, a corresponding solution needs to be proposed.

In addition, on the unlicensed carrier, the LAA cell needs to obtain the right to use the carrier through competition, and the longest occupation time of the carrier is usually not more than 4ms or 10ms according to regulatory requirements. When the configured measurement gap and the occupation period overlap, the processing (the corresponding time periods at least partially overlap), how to deal with it, urgently need to propose a corresponding solution.

Summary of the invention

The following is an overview of the topics detailed in this document. This summary is not intended to limit the scope of the claims.

The embodiments of the present invention provide the following technical solutions.

An unlicensed carrier measurement method is applied to a cell scheduled terminal deployed on an unlicensed carrier, including:

Receiving an indication that the cell sent by the base station has successfully preempted resources before a measurement gap configured or before a time point before the measurement gap;

Performing data transmission and reception or performing measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap or indication information of the base station;

The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.

among them,

The processing strategy when the measurement gap and the occupation period overlap, includes one of the following strategies:

When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception.

among them,

A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.

among them,

According to the processing strategy when the measurement gap and the occupation period overlap, before data transmission and reception or measurement is performed in the measurement gap, the method further includes:

If the indication sent by the base station to perform measurement in the measurement gap is received, then the measurement is taken Gap measurement;

If the indication that the base station performs measurement in the measurement gap is not received, data transmission and reception or measurement is performed in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap.

among them,

A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.

among them,

The indication information of the base station is indication information that is determined by the base station to perform data transmission and reception or measurement in the measurement gap according to a processing policy when the measurement gap and the occupation period overlap.

among them,

The method further includes:

Receiving, by the terminal, a received signal strength indication RSSI measurement parameter configured by the base station, where the RSSI measurement parameter includes an RSSI measurement resource and an RSSI measurement report type;

If the configured RSSI measurement reporting type is to report the immediate RSSI, the measured RSSI value is reported if the terminal performs the measurement in a measurement gap, and the immediate RSSI value is not reported or reported if the terminal does not perform the measurement. Indicates the invalid value of this report;

If the configured RSSI measurement reporting type is reported as the average RSSI or RSSI statistics. Then, in a measurement gap, only the terminal performs measurement, and the current measurement value is counted.

among them,

The processing strategy when the measurement gap and the occupation period overlap is obtained by the base station and the terminal in advance, or is obtained from the signaling sent by the base station.

A method for configuring an unlicensed carrier measurement gap, which is applied to a base station of a long-term evolution authorized carrier-assisted access system LAA, including:

The base station configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, and generates configuration information of the licensed carrier measurement gap and configuration information of the unlicensed carrier measurement gap;

Sending, by the base station, configuration information and an unauthorized load of the authorized carrier measurement gap to the terminal Wave measurement gap configuration information.

among them,

The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap include the following configuration parameters: measurement period, duration, and offset;

The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap share the same set of configuration parameters, or respectively use a respective set of configuration parameters.

among them,

The base station configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, including:

The base station configures an authorized carrier measurement gap for the terminal according to the configurable parameter set of the licensed carrier measurement gap; and configures the unlicensed carrier measurement gap for the terminal according to the configurable parameter set of the unlicensed carrier measurement gap;

The authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, or respectively use a respective set of configurable parameters.

among them,

The authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, and the set of configurable parameters includes:

Measurement period set {40ms, 80ms}, duration set {6ms}; or

The measurement period set {20ms, 40ms, 80ms, 160ms}, the duration duration set {3ms, 6ms}.

The authorized carrier measurement gap and the unlicensed carrier measurement gap respectively use a respective set of configurable parameters, wherein

The configurable parameter set of the licensed carrier measurement gap includes: a measurement period set {40ms, 80ms}, a duration duration set {6ms};

In the configurable parameter set of the unlicensed carrier measurement gap, the measurement period set is {20ms, 40ms, 80ms, 160ms}, and the duration duration set is {3ms, 6ms}.

The method further includes: the indication information sent by the base station to the terminal, indicating that the terminal performs measurement in the specified measurement gap.

The indication information sent by the base station to the terminal is instructed by the terminal to perform measurement in the specified measurement gap, including: when the base station needs to perform fast carrier selection and has determined multiple carriers of the candidate service, sending an indication to the terminal, indicating that the terminal is The nearest measurement gap is measured.

An unlicensed carrier measurement method is applied to a base station of a Long Term Evolution Authorized Carrier Assisted Access System LAA, including:

The cell scheduling the terminal on the unlicensed carrier has successfully preempted the resource before a measurement gap configured for the terminal or before a time point before the measurement gap;

According to the processing strategy when the measurement gap and the occupation period overlap, the terminal should perform data transmission and reception or measurement in the measurement gap to make a decision;

The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.

The processing strategy when the measurement gap and the occupation period overlap, includes one of the following strategies:

When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception.

Wherein a part of the measurement gap is configured to be fixed to the measurement gap for measurement, comprising: configuring one of each N consecutive measurement gaps as a measurement gap fixed for measurement, where N is a set Positive integer, N≥2.

The time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.

After determining whether the terminal should perform data transmission and reception or measurement in the measurement gap, the method further includes: indicating a decision result to the terminal; or not indicating the decision result to the terminal, and the terminal independently makes a decision. .

A cell scheduling terminal that can be deployed on an unlicensed carrier, including a measurement control module of an unlicensed carrier, where the measurement control module includes:

The first control unit is configured to determine, before a time interval before the measurement gap or before the measurement gap, whether an indication that the cell sent by the base station has successfully preempted the resource is received, and if received, the second is started. control unit;

The second control unit is configured to determine, according to the processing policy when the measurement gap and the occupation period overlap, or the indication information of the base station, to perform data transmission and reception or measurement in the measurement gap;

The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.

The second control unit determines to perform data transmission and reception or measurement in the measurement gap according to the processing strategy when the measurement gap and the occupation period overlap, wherein the processing strategy includes one or more of the following strategies: :

When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, then the measurement is performed. The amount of gap is measured, otherwise, data is transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the base station needs to perform fast carrier selection and multiple carriers of the candidate service have been determined, the measurement is performed in the measurement gap.

Wherein a part of the measurement gap is configured to be fixed to the measurement gap for measurement, comprising: configuring one of each N consecutive measurement gaps as a measurement gap fixed for measurement, where N is a set Positive integer, N≥2.

The second control unit is further configured to: according to a processing strategy when the measurement gap and the occupation period overlap, before data transmission and reception or measurement is performed in the measurement gap,

Determining whether an indication sent by the base station to perform measurement in the measurement gap is received:

If received, measurements are taken at the measurement gap;

If it is not received, according to the processing strategy when the measurement gap and the occupation period overlap, data transmission and reception or measurement is performed in the measurement gap.

The time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.

The second control unit determines, according to the indication information of the base station, data transmission and reception or measurement in the measurement gap, where the indication information of the base station is processing when the base station overlaps according to the measurement gap and the occupation period. The policy determines the indication information for data transmission and reception or measurement in the measurement gap.

The terminal further includes:

The measurement processing module is configured to perform measurement according to the received signal strength indication RSSI measurement parameter of the received base station configuration, where the RSSI measurement parameter includes an RSSI measurement resource and an RSSI measurement report type, and the measurement is performed as follows:

If the configured RSSI measurement reporting type is to report the immediate RSSI, the measured RSSI value is reported if the terminal performs the measurement in a measurement gap, and the immediate RSSI value is not reported or reported if the terminal does not perform the measurement. Indicates the invalid value of this report;

If the configured RSSI measurement reporting type is reported as the average RSSI or RSSI statistics. Then, in a measurement gap, only the terminal performs measurement, and the current measurement value is counted.

A base station for a long-term evolution authorized carrier-assisted access system LAA, comprising:

The configuration module is configured to configure an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, and generate configuration information of the licensed carrier measurement gap and configuration information of the unlicensed carrier measurement gap;

And a sending module, configured to send, to the terminal, configuration information of the authorized carrier measurement gap and configuration information of an unlicensed carrier measurement gap.

The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap generated by the configuration module all include the following configuration parameters: a measurement period, a duration, and an offset; wherein the authorized carrier measurement gap The configuration information shares the same set of configuration parameters with the configuration information of the unlicensed carrier measurement gap, or uses a respective set of configuration parameters.

The configuration module configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, where the base station configures an authorized carrier measurement gap for the terminal according to the configurable parameter set of the authorized carrier measurement gap; and measures the gap according to the unlicensed carrier. The configurable parameter set configures an unlicensed carrier measurement gap for the terminal; wherein the authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, or respectively use a respective set of configurable parameters.

The authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, and the set of configurable parameters includes:

Measurement period set {40ms, 80ms}, duration set {6ms}; or

The measurement period set {20ms, 40ms, 80ms, 160ms}, the duration duration set {3ms, 6ms}.

The authorized carrier measurement gap and the unlicensed carrier measurement gap respectively use a respective set of configurable parameters, wherein

The configurable parameter set of the licensed carrier measurement gap includes: a measurement period set {40ms, 80ms}, a duration duration set {6ms};

In the configurable parameter set of the unlicensed carrier measurement gap, the measurement period set is {20ms, 40ms, 80ms, 160ms}, and the duration duration set is {3ms, 6ms}.

The base station further includes: an indication module, configured to send the indication information to the terminal, to instruct the terminal to perform measurement in the specified measurement gap.

The indication information sent by the indication module to the terminal indicates that the terminal performs measurement in the specified measurement gap, including: when the base station needs to perform fast carrier selection and has determined multiple carriers of the candidate service, sending an indication to the terminal, indicating the terminal Measurements were taken at the nearest measurement gap.

A base station for a long-term evolution authorized carrier-assisted access system (LAA) includes a measurement decision module for an unlicensed carrier, and the measurement decision module includes:

The first determining unit is configured to determine whether the cell of the terminal has successfully preempted the resource on the unlicensed carrier before a measurement gap configured for the terminal or before a time point before the measurement gap, and if so, start the first Two decision making units;

The second decision unit is configured to determine whether the terminal should perform data transmission and reception or measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap, and indicate a decision result to the terminal;

The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.

The second decision unit determines whether the terminal should perform data transmission and reception or measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap, wherein the processing strategy includes one of the following strategies. Kind or more:

When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception;

When a measurement gap and an occupation period overlap, if the base station needs to perform fast carrier selection and multiple carriers of the candidate service have been determined, the measurement is performed in the measurement gap.

Wherein a part of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.

The time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.

After the second decision unit determines whether the terminal should perform data transmission and reception or measurement in the measurement gap, the second decision unit further includes: indicating the decision result to the terminal; or not indicating the decision result to the terminal. The decision is made independently by the terminal.

The method and the base station for configuring the unlicensed carrier measurement gap realize effective configuration of the licensed carrier measurement gap and the unlicensed carrier measurement gap of the cell deployed on the authorized carrier and the cell scheduled by the cell deployed on the unlicensed carrier.

The above unlicensed carrier measurement method and terminal propose a corresponding processing scheme for the case where the configured measurement gap and the occupation period overlap. The strategy of transmitting and receiving data in the measurement gap during overlap avoids frequent carrier switching and transceiver interruption on the unlicensed carrier, and improves the utilization period of the unlicensed carrier. In the case of overlapping, the data transmission and reception strategy in a part of the measurement gap according to a certain rule can balance the utilization of the unlicensed carrier occupation period and the inter-frequency/differential system measurement.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flow chart of a method according to an embodiment of the present invention;

2 is a block diagram of a base station according to an embodiment of the present invention;

3 is a flowchart of a method according to Embodiment 2 of the present invention;

4 is a block diagram of a terminal according to Embodiment 2 of the present invention;

FIG. 5 is a flowchart of a method according to Embodiment 3 of the present invention; FIG.

FIG. 6 is a block diagram of a third base station according to an embodiment of the present invention.

Embodiments of the invention

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

Embodiment 1

As shown in FIG. 1 , the method for configuring an unlicensed carrier measurement gap in this embodiment is applied to a base station of a LAA, including:

Step 110: The base station configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, and generates configuration information of the licensed carrier measurement gap and configuration information of the unlicensed carrier measurement gap.

In this embodiment, the configuration parameters of the licensed carrier measurement gap and the unlicensed carrier measurement gap include: a measurement period, a duration, and an offset. The offset is the offset of the start position of the measurement gap from the start position of the measurement period, and can be represented by the number of subframes.

In this step, the base station configures an authorized carrier measurement gap for the terminal according to the configurable parameter set of the licensed carrier measurement gap; and configures the unlicensed carrier measurement gap for the terminal according to the configurable parameter set of the unlicensed carrier measurement gap. The authorized carrier measurement gap and the unlicensed carrier measurement gap may share the same set of configurable parameters, or may each use a respective set of configurable parameters.

In one example, the authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, the set of configurable parameters comprising:

Measurement period set {40ms, 80ms}, duration set {6ms}; or

The measurement period set {20ms, 40ms, 80ms, 160ms}, the duration duration set {3ms, 6ms}.

In another example, the authorized carrier measurement gap and the unlicensed carrier measurement gap respectively use a respective set of configurable parameters, wherein

The configurable parameter set of the licensed carrier measurement gap includes: a measurement period set {40ms, 80ms}, a duration duration set {6ms};

In the set of configurable parameters of the unlicensed carrier measurement gap, the measurement period set is {20ms, 40ms, 80ms, 160ms}, duration set {3ms, 6ms}.

The set of offsets in the configurable parameters can be determined according to the configured measurement period and duration. For example, when the period is 40 ms and the duration is 6 ms, the corresponding offset set is {0, 1, 2, ..., 34}.

In this step, the terminal is a cell deployed on an authorized carrier and a cell scheduled to be deployed on an unlicensed carrier.

Step 120: The base station sends, to the terminal, configuration information of the authorized carrier measurement gap and configuration information of an unlicensed carrier measurement gap.

The configuration information of the authorized carrier measurement gap includes a measurement period, a duration, and an offset configured for the authorized carrier measurement gap. The configuration information of the unlicensed carrier measurement gap includes a measurement period, a duration, and an offset configured for the unlicensed carrier measurement gap. The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap may share the same set of configuration parameters, or use a respective set of configuration parameters. For example, the configuration information of the licensed carrier measurement gap includes: a measurement period of 80 ms, an offset of 0, and a duration of 6 ms. The configuration information of the non-authorized carrier measurement gap includes: the measurement period is 20 ms, the offset is 0, and the duration is 3 ms.

In this embodiment, the base station may further indicate (such as using downlink control information (DCI) signaling) whether the terminal performs data transmission and reception or measurement when the configured measurement gap and the occupation period overlap. The signaling may be valid during the entire access period of the terminal, or valid during the data transmission period of the terminal receiving data, or valid for a predetermined period of time, or only for one overlap, and so on. This embodiment of the present invention does not limit this. For example, when the base station needs to perform fast carrier selection and has determined multiple carriers of the candidate service, it sends an indication to the terminal to instruct the terminal to perform measurement in the latest measurement gap.

The embodiment further provides a base station of the Long Term Evolution Authorized Carrier Assistance Access System LAA. As shown in FIG. 2, the base station includes:

The configuration module 10 is configured to configure an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, and generate configuration information of the licensed carrier measurement gap and configuration information of the unlicensed carrier measurement gap.

The sending module 20 is configured to send, to the terminal, configuration information of the authorized carrier measurement gap and configuration information of an unlicensed carrier measurement gap.

The configuration information and the non-authorization of the authorized carrier measurement gap generated by the configuration module The configuration information of the carrier measurement gap includes the following configuration parameters: a measurement period, a duration, and an offset. The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap share the same set of configuration parameters, or Use a separate set of configuration parameters.

The configuration module configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, where the base station configures an authorized carrier measurement gap for the terminal according to the configurable parameter set of the authorized carrier measurement gap; and measures the gap according to the unlicensed carrier. The configurable parameter set configures an unlicensed carrier measurement gap for the terminal; wherein the authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, or respectively use a respective set of configurable parameters.

The authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, and the set of configurable parameters includes:

Measurement period set {40ms, 80ms}, duration set {6ms}; or

The measurement period set {20ms, 40ms, 80ms, 160ms}, the duration duration set {3ms, 6ms}.

The authorized carrier measurement gap and the unlicensed carrier measurement gap respectively use a respective set of configurable parameters, wherein

The configurable parameter set of the licensed carrier measurement gap includes: a measurement period set {40ms, 80ms}, a duration duration set {6ms};

In the configurable parameter set of the unlicensed carrier measurement gap, the measurement period set is {20ms, 40ms, 80ms, 160ms}, and the duration duration set is {3ms, 6ms}.

The base station further includes: an indication module, configured to send the indication information to the terminal, to instruct the terminal to perform measurement in the specified measurement gap.

The indication information sent by the indication module to the terminal indicates that the terminal performs measurement in the specified measurement gap, including: when the base station needs to perform fast carrier selection and has determined multiple carriers of the candidate service, sending an indication to the terminal, indicating the terminal Measurements were taken at the nearest measurement gap.

Embodiment 2

This embodiment provides an unlicensed carrier measurement method, which is applied to a cell scheduled terminal deployed on an unlicensed carrier, where the terminal may be a terminal scheduled by a primary cell PCell or a secondary cell SCell on an unlicensed carrier.

As shown in FIG. 3, the method in this embodiment includes:

Step 210: Receive an indication that the cell sent by the base station has successfully preempted the resource before a time interval before the measurement gap or before the measurement gap.

In this step, before the measurement gap refers to the start position of the measurement gap, a time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t. , t can be configured by the terminal.

In this step, if an indication that the cell has successfully preempted the resource sent by the base station is not received before a measurement gap or before a measurement time interval, the measurement is normally performed in the measurement gap.

Step 220: Perform data transmission and reception or perform measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap.

In this paper, the measurement gap and the occupation period overlap include two cases in which the two overlap and partially overlap.

The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.

In this embodiment, the processing strategy when the measurement gap and the occupation period overlap may include one of the following strategies:

Strategy one, always measuring in the measurement gap when a measurement gap and an occupation period overlap;

Strategy 2: when a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

In the third strategy, when the measurement gap and the occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, the data is transmitted and received in the measurement gap. ;

Strategy 4: When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and occupation periods overlap, measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap. , M is a set positive integer, M ≥ 2;

Strategy 5, a part of the measurement gap is configured to be a measurement gap fixed for measurement, and when a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, Then, the measurement is performed in the measurement gap, otherwise, data is transmitted and received in the measurement gap.

In the above strategy:

The occupation period of the unlicensed carrier is very valuable. If it is difficult to compete for the occupation period, it just overlaps with the configured measurement gap, and it is necessary to suspend the data transmission and reception to perform measurement, and the occupation opportunity will be lost. The second strategy is to transmit and receive data in the measurement gap when overlapping. The terminal can avoid frequent carrier switching and transceiver interruption on the unlicensed carrier, and improve the utilization period of the unlicensed carrier.

The strategies three to five are all overlapped, and according to certain rules, it is determined whether data is transmitted or received on the current measurement gap, or whether measurement is performed. On the one hand, by reasonably arranging the measurement gap, the terminal avoids frequent carrier switching and transceiver interruption on the unlicensed carrier, and improves the utilization rate of the unlicensed carrier. On the other hand, it is also considered to ensure that there is an appropriate measurement opportunity within a certain length of time to meet the need for inter-frequency/differential system measurement.

In the above strategy 5, a part of the measurement gap is configured to be a measurement gap fixed for measurement, and may include: configuring one measurement gap of each N consecutive measurement gaps as a measurement gap fixed for measurement, where, N For a positive integer set, N ≥ 2. For example, when N=4, the first, fifth, ninth, ... can be configured as a measurement gap for which measurement is fixed.

The processing strategy when the measurement gap and the occupation period overlap may be previously agreed by the base station and the terminal, or may be obtained from signaling (such as RRC signaling, MAC CE, DCI signaling, etc.) sent by the base station.

In this embodiment, the following processing logic may be added: if the terminal receives the indication sent by the base station to perform measurement in the measurement gap before step 220, the measurement is performed in the measurement gap; if the base station is not received, The measurement gap is used to perform measurement, and data transmission and reception or measurement is performed in the measurement gap according to the processing strategy when the measurement gap and the occupation period overlap.

In another embodiment, in step 220, the terminal performs data transmission and reception or measurement in the measurement gap according to the indication information of the base station, where the measurement gap is used for performing inter-frequency and frequency on the unlicensed carrier. The indication information of the base station measured by the different system is the processing policy when the base station overlaps according to the measurement gap and the occupation period, and determines the indication information for performing data transmission and reception or measurement in the measurement gap.

In this embodiment, the base station configures an unlicensed carrier measurement gap for the terminal, and is also configured for the terminal. RSSI measurement parameters, including RSSI measurement resources and RSSI measurement reporting types. among them:

The RSSI measurement resource refers to the RSSI of the legacy LTE cell and the RSSI resource of the LAA cell. The RSSI of the LTE cell is measured by measuring the symbol or the subframe in which the reference signal is located; the RSSI of the LAA cell may be measured by measuring the symbol of the reference signal, all or part of the symbol of the subframe in which the reference signal is located, or on the configured measurement subframe. The RSSI measurement reporting type refers to a single RSSI measurement duration and an average window length, and the single RSSI measurement duration may be one or more OFDM symbol lengths, one or more subframes. The single RSSI measurement result can be reported as an immediate RSSI, or it can be reported after averaging within a certain average window length. The RSSI average window length can be the current occupancy period length, 4ms or 10ms, or even longer, such as 200ms.

If the RSSI measurement reporting type configured by the base station is reported as the immediate RSSI. Then, in a measurement gap, if the terminal performs measurement, the measured immediate RSSI value is reported. If the terminal does not perform measurement, the immediate RSSI value is not reported, or a value indicating that the report is invalid is reported.

If the RSSI measurement reporting type configured by the base station is reported as the average RSSI or RSSI statistics. In a measurement gap, only the terminal performs measurement, and the current measurement value is counted. If the terminal does not perform measurement, the existing statistical value is not changed. For example, if the RSSI reports an average value, the measurement gap is ignored and does not participate in the statistical average. Or the RSSI reports the channel occupancy rate, and the measurement gap does not participate in the statistics. Channel occupancy is defined as the ratio of valid measurements above the threshold during the statistical period. That is, the channel occupancy rate is equal to the number of measured values of the high and the threshold/the number of valid measurements.

The embodiment further provides a cell scheduling terminal that can be deployed on an unlicensed carrier, and includes a measurement control module for the unlicensed carrier. As shown in FIG. 4, the measurement control module includes:

The first control unit 40 is configured to determine whether to receive an indication that the cell sent by the base station has successfully preempted the resource before a time interval before the measurement gap or before the measurement gap, such as receiving, starting, Two control units;

The second control unit 50 is configured to determine to perform data transmission and reception or perform measurement in the measurement gap according to a processing policy when the measurement gap and the occupation period overlap or indication information of the base station;

The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.

among them,

The second control unit determines to perform data transmission and reception or measurement in the measurement gap according to the processing strategy when the measurement gap and the occupation period overlap, wherein the processing policy includes one or more of the following strategies:

When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception;

When a measurement gap and an occupation period overlap, if the base station needs to perform fast carrier selection and multiple carriers of the candidate service have been determined, the measurement is performed in the measurement gap.

among them,

A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.

among them,

The second control unit is further configured to: according to a processing strategy when the measurement gap and the occupation period overlap, before data transmission and reception or measurement is performed in the measurement gap,

Determining whether an indication sent by the base station to perform measurement in the measurement gap is received:

If received, measurements are taken at the measurement gap;

If it is not received, according to the processing strategy when the measurement gap and the occupation period overlap, the test is performed. The amount of gaps is used for data transmission and reception or measurement.

among them,

A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.

among them,

The second control unit determines, according to the indication information of the base station, data transmission and reception or measurement in the measurement gap, where the indication information of the base station is a processing strategy when the base station overlaps according to the measurement gap and the occupation period. The decision information determined by the decision to perform data transmission or reception or measurement in the measurement gap.

among them,

The terminal further includes:

The measurement processing module is configured to perform measurement according to the received signal strength indication RSSI measurement parameter of the received base station configuration, where the RSSI measurement parameter includes an RSSI measurement resource and an RSSI measurement report type, and the measurement is performed as follows:

If the configured RSSI measurement reporting type is to report the immediate RSSI, the measured RSSI value is reported if the terminal performs the measurement in a measurement gap, and the immediate RSSI value is not reported or reported if the terminal does not perform the measurement. Indicates the invalid value of this report;

If the configured RSSI measurement reporting type is reported as the average RSSI or RSSI statistics. Then, in a measurement gap, only the terminal performs measurement, and the current measurement value is counted.

Embodiment 3

In the second embodiment, when the measurement gap and the occupation period overlap, the terminal makes a decision on whether the terminal should perform data transmission and reception or measurement in the measurement gap. In this embodiment, the base station makes a decision. It should be noted that the terminal decision does not mean that the base station cannot make a decision, and the base station decision does not mean that the terminal must not make a decision, and the terminal and the base station can make respective decisions.

If the base station decides not to perform data transmission and reception, the base station stops data transmission, and the terminal stops data reception.

The unlicensed carrier measurement method of this embodiment is applied to a base station of the LAA, as shown in FIG. 5, include:

Step 310: The cell scheduling the terminal on the unlicensed carrier has successfully preempted the resource before a measurement gap configured for the terminal or before a time point before the measurement gap.

A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.

If the cell scheduling the terminal on the unlicensed carrier does not preempt the resource before a measurement gap configured for the terminal or before a time point before the measurement gap, no decision is made and the measurement is normally performed in the measurement gap.

Step 320: According to a processing strategy when the measurement gap and the occupation period overlap, determine whether the terminal should perform data transmission and reception or measurement in the measurement gap.

In this step, the measurement gap is a measurement gap for performing inter-frequency and/or inter-system measurement on an unlicensed carrier, and the occupancy period is an occupation period of the unlicensed carrier.

In this embodiment, the processing strategy when the measurement gap and the occupation period overlap, includes one of the following strategies:

When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception. For example, one of each N consecutive measurement gaps may be configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2;

When a measurement gap and occupancy period overlap, for example, the base station needs to perform fast carrier selection and has already confirmed When multiple carriers of the candidate service are determined, the measurement is performed in the measurement gap.

In this step, after the terminal decides whether to perform data transmission and reception or measurement in the measurement gap, the decision result may be indicated to the terminal; or the decision result may not be indicated to the terminal, and the terminal independently makes a decision.

The embodiment further provides a base station for the long-term evolution authorized carrier-assisted access system LAA, including a measurement decision module for the unlicensed carrier. As shown in FIG. 6, the measurement decision module includes:

The first determining unit 70 is configured to determine whether the cell of the terminal has successfully preempted the resource on the unlicensed carrier before a measurement gap configured for the terminal or before a time point before the measurement gap, and if so, start Second decision unit;

The second decision unit 80 is configured to determine whether the terminal should perform data transmission and reception or measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap, and indicate the decision result to the terminal;

The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.

among them,

The second decision unit determines whether the terminal should perform data transmission and reception or measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap, wherein the processing strategy includes one of the following strategies or Multiple:

When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, then the measurement is performed. The amount of gap is measured, otherwise, data is transmitted and received in the measurement gap;

When a measurement gap and an occupation period overlap, if the base station needs to perform fast carrier selection and multiple carriers of the candidate service have been determined, the measurement is performed in the measurement gap.

among them,

A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.

among them,

A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.

among them,

After the second decision unit determines whether the terminal should perform data transmission and reception or measurement in the measurement gap, the second decision unit further sets: indicates the decision result to the terminal; or does not indicate the decision result to the terminal, The decision is made independently by the terminal.

The above embodiments enable the measurement behavior of the LAA system to adapt to the non-continuous transmission on the unlicensed spectrum. If the corresponding strategy is adopted, the usage efficiency of the occupation period can be ensured as much as possible.

Here are a few examples of specific applications.

Example 1

In this example, the measurement gap configured by the base station for the terminal is used for the measurement of the authorized carrier and the unlicensed carrier scheduling, and the corresponding configuration parameters are: the measurement period is 80 ms, the offset is 0, and the duration is 6 ms.

For a cell deployed on an authorized carrier and a cell scheduled to be deployed on an unlicensed carrier (the terminal has two RF radio modules, which can respectively operate at a frequency of the licensed carrier and a frequency of the unlicensed carrier, Independent transmission and reception and measurement on the authorized carrier and the unlicensed carrier are handled as follows:

If a measurement gap is set to perform inter-frequency and/or inter-system measurement on an unlicensed carrier (before the measurement gap arrives), the cell deployed on the unlicensed carrier successfully preempts the channel. With the right to use, the base station informs the terminal that the terminal has successfully preempted the unlicensed carrier resources through the DCI indication, and prepares to perform uplink/downlink data scheduling for the terminal, that is, the measurement gap overlaps with the occupation period of the unlicensed carrier. Processing strategy when overlapping:

Strategy 1: The measurement is performed normally in the measurement gap, and the measurement frequency needs to be switched to the measurement frequency point first;

Strategy 2: Data transmission and reception is performed in the measurement gap, and the inter-frequency/differential system measurement is not performed;

Strategy 3: when the measurement gap of the measurement once performed to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

Strategy 4: If data transmission and reception is selected when there are consecutive M measurement gaps and occupancy periods overlap, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, M is a set positive integer, M ≥2; if M=4, when the first to third overlap occurs, data is transmitted and received in the corresponding three measurement gaps, and when the fourth overlap occurs, the measurement should be performed in the corresponding one measurement gap; When the 5th to 7th overlap occurs, data is transmitted and received in the corresponding three measurement gaps, and when the 8th overlap occurs, the measurement should be performed in the corresponding measurement gap; and so on. A counter can be used to count the number of times an overlap occurs, and the count is restarted from 0 after counting to 4.

In the strategy 5, when the measurement gap of the last measurement to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

In strategy 6, a part of the measurement gap is configured to be a measurement gap fixed for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap.

The above method can also be applied to a terminal scheduled by a cell deployed on an unlicensed carrier.

Example two

In this example, the base station configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, and the configured authorized carrier measurement gap is used for the cell scheduling terminal deployed on the authorized carrier to perform inter-frequency/differential system measurement, and the configured non-authorization The carrier measurement gap is used for the cell scheduling terminal deployed on the unlicensed carrier to perform the measurement of the inter-frequency/extra system. In the scenario of this example, the base station instructs the terminal to make measurements at a particular measurement gap. For example, the base station needs to perform fast carrier selection. When multiple carriers of the candidate service have been determined, an indication may be sent to the terminal to indicate that the terminal is in the most recent measurement. The gap is measured. In yet another example, the base station does not generate such indication information.

In this example, the configuration parameters of the licensed carrier measurement gap and the unlicensed carrier measurement gap are different. For unlicensed carrier measurement gaps, the terminal processes as follows:

Step 1: Before a time point before the configuration of the measurement gap, receiving an indication that the cell sent by the base station has successfully preempted the resource;

The base station may send the foregoing indication through the DCI, and prepares to perform uplink/downlink data scheduling on the terminal.

The above time point is a time point before the measurement gap and the length of time to the start position of the measurement gap is equal to the set time length t.

Step 2, it is determined whether the indication information about the overlap processing sent by the base station is received, and if yes, step 3 is performed; otherwise, step 4 is performed;

Step 3: performing data transmission and reception or performing measurement during the measurement gap according to the indication information, and ending;

Step 4: according to the processing strategy when the measurement gap and the occupation period overlap, data transmission and reception or measurement is performed in the measurement gap.

The processing strategy of this step may be any one of the policies in the first example, and is not repeated here.

Example three

In this example, the base station side and the terminal side can respectively perform the determination according to the same policy. For example, the base station side and the terminal side can separately maintain the same counter. If the decision result is that data is not transmitted and received, the base station stops data transmission, and the terminal stops data reception.

Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions, the method described above when the computer executable instructions are executed by a processor.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic). Disc, CD), including a number of instructions to make a terminal device (can be a mobile phone, computer, The server, or network device, etc.) performs the methods described in various embodiments of the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

The method and the base station for configuring the unlicensed carrier measurement gap according to the embodiment of the present invention receive the resource successfully received by the base station before the time interval before the measurement gap or before the measurement gap. Instructing to perform data transmission and reception or measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap or an indication information of the base station; wherein the measurement gap is used for performing an inter-frequency sum on an unlicensed carrier. And a measurement gap measured by the different system, the occupation period is an occupation period of the unlicensed carrier, and the licensed carrier measurement gap of the cell scheduled to be deployed on the authorized carrier and the cell scheduled to be deployed on the unlicensed carrier is implemented. Effective configuration of unlicensed carrier measurement gaps.

The unlicensed carrier measurement method and the terminal provided by the embodiment of the present invention propose a corresponding processing scheme for the case where the configured measurement gap and the occupation period overlap. The strategy of transmitting and receiving data in the measurement gap during overlap avoids frequent carrier switching and transceiver interruption on the unlicensed carrier, and improves the utilization period of the unlicensed carrier. In the case of overlapping, the data transmission and reception strategy in a part of the measurement gap according to a certain rule can balance the utilization of the unlicensed carrier occupation period and the inter-frequency/differential system measurement.

Claims (40)

1. An unlicensed carrier measurement method is applied to a cell scheduled terminal deployed on an unlicensed carrier, including:

   Receiving an indication that the cell sent by the base station has successfully preempted resources before a measurement gap configured or before a time point before the measurement gap;

   Performing data transmission and reception or performing measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap or indication information of the base station;

   The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.
2. The method of claim 1 wherein

   The processing strategy when the measurement gap and the occupation period overlap, includes one of the following strategies:

   When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

   When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

   When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

   When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

   A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception.
3. The method of claim 2, wherein

   A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

   One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.
4. The method of claim 1 or 2 or 3,

   According to the processing strategy when the measurement gap and the occupation period overlap, before data transmission and reception or measurement is performed in the measurement gap, the method further includes:

   If an indication sent by the base station to perform measurement in the measurement gap is received, performing measurement in the measurement gap;

   If the indication that the base station performs measurement in the measurement gap is not received, data transmission and reception or measurement is performed in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap.
5. The method of claim 1 or 2 or 3, wherein

   A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.
6. The method of claim 1 wherein

   The indication information of the base station is indication information that is determined by the base station to perform data transmission and reception or measurement in the measurement gap according to a processing policy when the measurement gap and the occupation period overlap.
7. The method of claim 1

   The method further includes:

   Receiving, by the terminal, a received signal strength indication RSSI measurement parameter configured by the base station, where the RSSI measurement parameter includes an RSSI measurement resource and an RSSI measurement report type;

   If the configured RSSI measurement reporting type is to report the immediate RSSI, the measured RSSI value is reported if the terminal performs the measurement in a measurement gap, and the immediate RSSI value is not reported or reported if the terminal does not perform the measurement. Indicates the invalid value of this report;

   If the configured RSSI measurement reporting type is to report the average RSSI or RSSI statistics, in the measurement gap, only the terminal performs measurement, and the current measurement value is counted.
8. The method of claim 1 wherein

   The processing strategy when the measurement gap and the occupation period overlap is obtained by the base station and the terminal in advance, or is obtained from the signaling sent by the base station.
9. A method for configuring an unlicensed carrier measurement gap, which is applied to a base station of a long-term evolution authorized carrier-assisted access system LAA, including:

   The base station configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, and generates an authorization payload. Configuration information of the wave measurement gap and configuration information of the unlicensed carrier measurement gap;

   And the base station sends, to the terminal, configuration information of the authorized carrier measurement gap and configuration information of an unlicensed carrier measurement gap.
10. The method of claim 9 wherein

    The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap include the following configuration parameters: measurement period, duration, and offset;

    The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap share the same set of configuration parameters, or respectively use a respective set of configuration parameters.
11. The method according to claim 9 or 10, wherein

    The base station configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, including:

    The base station configures an authorized carrier measurement gap for the terminal according to the configurable parameter set of the licensed carrier measurement gap; and configures the unlicensed carrier measurement gap for the terminal according to the configurable parameter set of the unlicensed carrier measurement gap;

    The authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, or respectively use a respective set of configurable parameters.
12. The method of claim 11 wherein

    The authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, and the set of configurable parameters includes:

    Measurement period set {40ms, 80ms}, duration set {6ms}; or

    The measurement period set {20ms, 40ms, 80ms, 160ms}, the duration duration set {3ms, 6ms}.
13. The method of claim 11 wherein

    The authorized carrier measurement gap and the unlicensed carrier measurement gap respectively use a respective set of configurable parameters, wherein

    The configurable parameter set of the licensed carrier measurement gap includes: a measurement period set {40ms, 80ms}, a duration duration set {6ms};

    In the configurable parameter set of the unlicensed carrier measurement gap, the measurement period set is {20ms, 40ms, 80ms, 160ms}, and the duration duration set is {3ms, 6ms}.
14. The method of claim 9

    The method further includes:

    The indication information sent by the base station to the terminal indicates that the terminal performs measurement in the specified measurement gap.
15. The method of claim 14

    The indication information sent by the base station to the terminal indicates that the terminal performs measurement in the specified measurement gap, including:

    When the base station needs to perform fast carrier selection and has determined multiple carriers of the candidate service, it sends an indication to the terminal to instruct the terminal to perform measurement in the latest measurement gap.
16. An unlicensed carrier measurement method is applied to a base station of a Long Term Evolution Authorized Carrier Assisted Access System LAA, including:

    The cell scheduling the terminal on the unlicensed carrier has successfully preempted the resource before a measurement gap configured for the terminal or before a time point before the measurement gap;

    According to the processing strategy when the measurement gap and the occupation period overlap, the terminal should perform data transmission and reception or measurement in the measurement gap to make a decision;

    The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.
17. The method of claim 16

    The processing strategy when the measurement gap and the occupation period overlap, includes one of the following strategies:

    When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

    When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

    When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

    When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

    A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, in one measurement When the gap and the occupation period overlap, if the measurement gap is a measurement gap that is measured for measurement, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap.
18. The method of claim 17

    A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

    One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.
19. The method of claim 16 or 17 or 18,

    A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.
20. The method of claim 16 or 17 or 18,

    After determining whether the terminal should perform data transmission and reception or measurement in the measurement gap, the method further includes:

    Instructing the decision result to the terminal; or

    The decision result is not indicated to the terminal, and the terminal makes the decision independently.
21. A cell scheduling terminal that can be deployed on an unlicensed carrier, wherein the measurement control module includes an unlicensed carrier, and the measurement control module includes:

    The first control unit is configured to determine, before a time interval before the measurement gap or before the measurement gap, whether an indication that the cell sent by the base station has successfully preempted the resource is received, and if received, the second is started. control unit;

    The second control unit is configured to determine, according to the processing policy when the measurement gap and the occupation period overlap, or the indication information of the base station, to perform data transmission and reception or measurement in the measurement gap;

    The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.
22. The terminal of claim 21, wherein

    The second control unit determines to perform data transmission and reception or measurement in the measurement gap according to the processing strategy when the measurement gap and the occupation period overlap, wherein the processing policy includes one or more of the following strategies:

    When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

    When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

    When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

    When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

    A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception;

    When a measurement gap and an occupation period overlap, if the base station needs to perform fast carrier selection and multiple carriers of the candidate service have been determined, the measurement is performed in the measurement gap.
23. The terminal of claim 22, wherein

    A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

    One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.
24. The terminal according to claim 21 or 22 or 23,

    The second control unit is further configured to: according to a processing strategy when the measurement gap and the occupation period overlap, before data transmission and reception or measurement is performed in the measurement gap,

    Determining whether an indication sent by the base station to perform measurement in the measurement gap is received:

    If received, measurements are taken at the measurement gap;

    If it is not received, according to the processing strategy when the measurement gap and the occupation period overlap, data transmission and reception or measurement is performed in the measurement gap.
25. The terminal according to claim 21 or 22 or 23, wherein

    A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.
26. The terminal of claim 21, wherein

    The second control unit determines, according to the indication information of the base station, data transmission and reception or measurement in the measurement gap, where the indication information of the base station is a processing strategy when the base station overlaps according to the measurement gap and the occupation period. The decision information determined by the decision to perform data transmission or reception or measurement in the measurement gap.
27. The terminal of claim 21,

    The terminal further includes:

    The measurement processing module is configured to perform measurement according to the received signal strength indication RSSI measurement parameter of the received base station configuration, where the RSSI measurement parameter includes an RSSI measurement resource and an RSSI measurement report type, and the measurement is performed as follows:

    If the configured RSSI measurement reporting type is to report the immediate RSSI, the measured RSSI value is reported if the terminal performs the measurement in a measurement gap, and the immediate RSSI value is not reported or reported if the terminal does not perform the measurement. Indicates the invalid value of this report;

    If the configured RSSI measurement reporting type is to report the average RSSI or RSSI statistics, in the measurement gap, only the terminal performs measurement, and the current measurement value is counted.
28. A base station for a long-term evolution authorized carrier-assisted access system LAA, comprising:

    The configuration module is configured to configure an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, and generate configuration information of the licensed carrier measurement gap and configuration information of the unlicensed carrier measurement gap;

    And a sending module, configured to send, to the terminal, configuration information of the authorized carrier measurement gap and configuration information of an unlicensed carrier measurement gap.
29. The base station according to claim 28, wherein

    The configuration information of the authorized carrier measurement gap and the configuration information of the unlicensed carrier measurement gap generated by the configuration module all include the following configuration parameters: a measurement period, a duration, and an offset; wherein, the configuration information of the authorized carrier measurement gap The configuration information of the unlicensed carrier measurement gap shares the same set of configuration parameters, or a respective set of configuration parameters are used.
30. A base station according to claim 28 or 29, wherein

    The configuration module configures an authorized carrier measurement gap and an unlicensed carrier measurement gap for the terminal, where the base station configures an authorized carrier measurement gap for the terminal according to the configurable parameter set of the authorized carrier measurement gap; and the configurable gap according to the unlicensed carrier measurement gap The parameter set is configured for the terminal to configure an unlicensed carrier measurement gap; wherein the authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, or respectively use a respective set of configurable parameters.
31. The base station according to claim 30, wherein

    The authorized carrier measurement gap and the unlicensed carrier measurement gap share the same set of configurable parameters, and the set of configurable parameters includes:

    Measurement period set {40ms, 80ms}, duration set {6ms}; or

    The measurement period set {20ms, 40ms, 80ms, 160ms}, the duration duration set {3ms, 6ms}.
32. The base station according to claim 30, wherein

    The authorized carrier measurement gap and the unlicensed carrier measurement gap respectively use a respective set of configurable parameters, wherein

    The configurable parameter set of the licensed carrier measurement gap includes: a measurement period set {40ms, 80ms}, a duration duration set {6ms};

    In the configurable parameter set of the unlicensed carrier measurement gap, the measurement period set is {20ms, 40ms, 80ms, 160ms}, and the duration duration set is {3ms, 6ms}.
33. A base station as claimed in claim 28,

    The base station further includes:

    The indication module is configured to send indication information to the terminal, instructing the terminal to perform measurement in the specified measurement gap.
34. The base station according to claim 33, wherein

    The indication information sent by the indication module to the terminal indicates that the terminal performs measurement in the specified measurement gap, including: when the base station needs to perform fast carrier selection and has determined multiple carriers of the candidate service, sending an indication to the terminal, indicating that the terminal is in the latest The measurement gap is measured.
35. A base station for a long-term evolution authorized carrier-assisted access system LAA, characterized in that it comprises a measurement decision module of an unlicensed carrier, and the measurement decision module comprises:

    The first determining unit is configured to determine whether the cell of the terminal has successfully preempted the resource on the unlicensed carrier before a measurement gap configured for the terminal or before a time point before the measurement gap, and if so, start the first Two decision making units;

    The second decision unit is configured to determine whether the terminal should perform data transmission and reception or measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap, and indicate a decision result to the terminal;

    The measurement gap is a measurement gap used for performing inter-frequency and/or hetero-system measurement on an unlicensed carrier, where the occupation period is an occupation period of the unlicensed carrier.
36. The base station according to claim 35, wherein

    The second decision unit determines whether the terminal should perform data transmission and reception or measurement in the measurement gap according to a processing strategy when the measurement gap and the occupation period overlap, wherein the processing strategy includes one of the following strategies or Multiple:

    When a measurement gap and occupancy period overlap, measurement is always performed in the measurement gap;

    When a measurement gap and an occupation period overlap, data is always transmitted and received in the measurement gap;

    When a measurement gap and an occupation period overlap, if the measurement gap of the measurement performed in the previous time to the measurement gap is greater than the set duration threshold, the measurement is performed in the measurement gap, otherwise, data transmission and reception is performed in the measurement gap;

    When a measurement gap and an occupation period overlap, if data transmission and reception is selected when there are consecutive M measurement gaps and overlap periods, the measurement is performed in the measurement gap. Otherwise, data is transmitted and received in the measurement gap, where M is Set a positive integer, M ≥ 2;

    A part of the measurement gap is configured to be fixed to the measurement gap for measurement. When a measurement gap and an occupation period overlap, if the measurement gap is a measurement gap that is fixed for measurement, measurement is performed in the measurement gap, otherwise, The measurement gap performs data transmission and reception;

    When a measurement gap and an occupation period overlap, if the base station needs to perform fast carrier selection and multiple carriers of the candidate service have been determined, the measurement is performed in the measurement gap.
37. The base station according to claim 36, wherein

    A portion of the measurement gap is configured to be fixed to the measurement gap for measurement, including:

    One of the measurement gaps per N consecutive measurement gaps is configured as a measurement gap that is fixed for measurement, where N is a set positive integer, N≥2.
38. A base station according to claim 35 or 36 or 37, wherein

    A time point before the measurement gap refers to a time point before the measurement gap and the time to the start position of the measurement gap is equal to the set time length t.
39. A base station according to claim 35 or 36 or 37, wherein

    After the second decision unit determines whether the terminal should perform data transmission and reception or measurement in the measurement gap, the method further includes: indicating a decision result to the terminal; or not indicating the decision result to the terminal, The terminal makes decisions independently.
40. A computer readable storage medium storing computer executable instructions for performing an unlicensed carrier measurement method and/or claim as claimed in any one of claims 1 to 8 when executed by a processor A method of measuring the gap configuration of the unlicensed carrier according to any one of 9 to 20.

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