CN105392148A

CN105392148A - Signal measurement and reporting method, user equipment, and base station

Info

Publication number: CN105392148A
Application number: CN201410453158.4A
Authority: CN
Inventors: 王轶; 陈子雄; 李迎阳; 孙程君
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2014-09-05
Filing date: 2014-09-05
Publication date: 2016-03-09

Abstract

The invention discloses a signal measurement and reporting method, and the method comprises the steps that UE receives measurement subframe set indication information transmitted by the base station and carrying out the signal measurement of one or more subframe sets indicated by the measurement subframe set indication information; and the UE enabes the corresponding measurement result of each subframe set indicated by the measurement subframe set indication information to be reported to the base station, wherein the switching states of miniature cells of all subframes in the same subframe set indicated by the measurement subframe set indication information are the same. The method can prevent the measurement results of miniature cells at different switching states from being combined wrongly, thereby improving the accuracy of measurement results, and improving the network efficiency.

Description

Method for measuring and reporting signal, user equipment and base station

Technical Field

The present application relates to the field of mobile communication technologies, and in particular, to a method, a user equipment and a base station for signal measurement and reporting.

Background

In the existing LTE/LTE-a system, the user equipment may measure a received signal, and may measure Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and the like of a serving cell, an adjacent cell, and the like.

For example, RSRP is defined as the linear average of the received signal power over all Resource Elements (REs) that carry a Cell-specific reference signal (Cell-specific reference signal) within a certain symbol. RSSI is considered to be a linear average of the total received power, including Co-channel serving and non-serving cell signals, adjacent channel interference, and thermal noise, among others. RSRQ is defined as N RSRP/(LTE carrier RSSI), where N is the number of Resource Blocks (RBs) of the LTE carrier RSSI measurement bandwidth.

TABLE 1RSRQ definition

On the other hand, in order to ensure coverage and reasonably adjust traffic demand and equipment overhead, a heterogeneous deployment (heterogeneous deployment) scenario in which macro cells and small cells (small cells) coexist will become one of the main deployment scenarios of the mobile communication system. Wherein the macro cell is responsible for coverage of the UE and the small cell is responsible for data offloading (offloading) of the UE. In general, the number of UEs served by each macro cell is large, so the total number of UEs and the total uplink and downlink services of the whole cell tend to be stable as a whole. The coverage area of the small cell is small, and the number of simultaneously served UEs in each small cell is much smaller than that of the macro cell. Dynamic changes of UEs within a small cell (a UE joining or leaving a small cell, or a UE under a small cell having new data arriving or data transmission completed) are also very fast. This relatively fast dynamic change of small cells may result in an uneven distribution of the number of UEs and the data demand among the individual small cells. For example, when one small cell is operating at full load, the neighboring small cells may be in a low-load or even idle state. In order to save energy and reduce inter-cell interference, for example, reduce interference between densely deployed co-frequency small cells, or reduce interference of an LTE base station on an unlicensed frequency band (unlicensed band) to other wireless transceivers (e.g., WLANs, etc.) on the unlicensed frequency band, a method for dynamically switching small cells is inevitably introduced in the LTE standard. Such a dynamic switch would be based on a mechanism where cells are turned on or off quickly. For example, when a UE in a certain small cell has no traffic transmission, the small cell may be considered to be turned off. When a UE of a closed small cell has new traffic to arrive, the small cell is turned on.

To improve system transmission efficiency, the UE should discover enough neighboring small cells as quickly as possible and be able to measure these accurately, and measure its own serving small cell as accurately as possible, even though these small cells may be in an off state. Therefore, in LTE system release 12, a discovery signal of a small cell is introduced. Such a discovery signal (DRS) appears at a certain period regardless of whether the small cell is in an on or off state. Therefore, the UE can obtain the measurement result of the small cell even in the state that the small cell is turned off, for example, RRM measurement, which may include RSRP and RSRQ measurement, and provide accurate information necessary for operations such as turning on or turning off the small cell timely and efficiently, or adding or removing the small cell to the UE.

The RRM measurements based on the discovery signal are different from the conventional RRM measurements based on the cell Common Reference Signal (CRS). In a conventional cellular network, a base station is always in an on state, and a CRS appears in each subframe. Therefore, the UE may make CRS based RRM measurements in any certain subframes, depending on the implementation algorithm. But since the discovery signal only occurs periodically, the UE can only make RRM measurements in the subframes containing the transmitted signals. Also, in a conventional cellular network, since each small cell is always in an on state, the measured signal energy based on CRS in each subframe is comparable and therefore can be combined. In a heterogeneous deployment network adopting almost all blank subframe technology (ABS), although the signal energy of one type of subframe is not comparable to that of another type of subframe, such as ABS subframes and non-ABS subframes, the configuration of the two types of subframes is predictable for a long period of time and remains unchanged, so the base station can semi-statically instruct the UE to measure RSRP and RSSI in the configured set of subframes through high layer signaling according to needs, for example, the base station configures the UE to measure RSRQ of small cells in ABS subframes. The base station does not restrict which subframes are specifically measured by the UE within the configured subframes. However, when the small cell can be dynamically switched on and off, the switching state of the small cell cannot be predicted in advance for a long time, and therefore, the base station cannot precisely configure the subframe set for the UE to perform measurement in advance according to the requirement, for example, the measurement subframe set when the small cell is turned on or turned off cannot be configured for the UE. Therefore, the UE may combine the results of the measurements in both cell states. However, since the difference of the results in the two small cell states is obvious, for example, when the small cell is turned off, the measured RSSI only contains the DRS of the small cell and does not contain any data, and the resources and energy occupied by the DRS and the conventional reference signal may be different, so the measured RSSI is smaller than the RSSI measured when the small cell is turned on, and may differ by 13dB in the limit case. Therefore, the measurement results in these two small cell states are not comparable or combinable. And the base station cannot know how the measurement results reported by the UE are combined based on the results of the cell states, so the base station cannot perform correct operations according to the measurement results reported by the UE, for example, whether the cell should be deactivated or whether the service should be branched to the cell, and the like, thereby seriously affecting the network efficiency.

The switching of the small cell can be achieved in a number of ways. For example, a semi-static small cell switch may inform a user that a cell is on by activating a serving cell configured to the user and off by deactivating a serving cell configured to the user. In this way, the user may consider the activated cell to be in an on state, and therefore, the relevant operations such as measurement on the activated cell may be completed according to the prior art, while the user may consider the cell that has not been activated or deactivated to be possibly in an off state, and therefore, the relevant operations such as measurement on the deactivated cell may not be completed according to the prior art. In such a scenario, the typical duration of the small cell being on or off is tens to hundreds of milliseconds. As another example, the small cell switch is dynamic, and the small cell is a cell that has been configured to a user as a serving cell and is activated, and the small cell can still switch the cell in an activated state. The on-off state of the user cell may be indicated by explicit signaling or obtained by user self-detection. Therefore, measurement related operations on the active cell cannot be done according to the prior art. In such a scenario, the typical duration of the small cell being on or off is a few milliseconds, e.g. the fastest may be 1 millisecond, or 5/10/20 milliseconds, etc.

For the above small cell switching scenarios, the aforementioned RRM measurement inaccuracy affects the system performance.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the invention.

Disclosure of Invention

The application provides a method for measuring and reporting signals, user equipment and a base station, which can distinguish UE measurement and reporting results in different small cell states, thereby improving the accuracy of the measurement and reporting results and further improving the network efficiency.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a signal measurement method, comprising:

user Equipment (UE) receives measurement subframe set indication information sent by a base station, and performs signal measurement on one or two subframe sets indicated by the measurement subframe set indication information;

the UE reports the measurement result corresponding to each subframe set indicated by the measurement subframe set indication information to the base station;

and the small cell switching states of the subframes in the same subframe set indicated by the measurement subframe set indication information are the same.

Preferably, when the measurement subframe set indication information indicates one subframe set, the measurement subframe set indication information is: the method includes the steps that a measurement subframe set is explicitly indicated to be subframe set indication information of a small cell in an on or off state, or indication information of measurement based on a discovery signal DRS, or indication information of measurement based on an existing reference signal, or indication information of a small cell enabling a switch function is used for implicitly indicating the measurement subframe set to be a subframe set of the small cell in the on or off state according to predefined.

Preferably, when only the UE is configured to perform measurement based on the DRS and no measurement based on the existing reference signal is configured to perform measurement, the indication information for performing measurement based on the DRS is used to implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an open state;

when only the UE is configured to measure based on the existing reference signals and the small cell has the switch function enabled, the indication information for measuring based on the existing reference signals is used for implicitly indicating the measurement subframe set, namely the subframe set of the small cell in the on state.

Preferably, when the measurement subframe set indication information indicates two subframe sets, the measurement subframe set indication information is:

indicating information indicating that one measurement subframe set is a subframe set of which the small cell is in an open state and indicating that the other measurement subframe set is a subframe set of which the small cell is in a closed state; or,

and indicating information indicating that one subframe set is measured based on the DRS and the other subframe set is measured based on the existing reference signals.

Preferably, when the UE is configured to perform measurement based on the existing reference signal and the DRS, the indication information for performing measurement based on the DRS is used to implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an off state, and the indication information for performing measurement based on the existing reference signal is used to implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an on state.

Preferably, the UE performing signal measurement in one or two subframe sets indicated by the measurement subframe indication information includes:

and the UE determines the subframe set indicated by the measurement subframe indication information and performs signal measurement on part or all of subframes belonging to the indicated subframe set according to the detected small cell state.

Preferably, the reporting, by the UE, the measurement result corresponding to each subframe set indicated by the measurement subframe set information to the base station includes: the UE combines a plurality of measurement results in the same subframe set to generate corresponding measurement reports, and reports the measurement report corresponding to each subframe set to the base station; or the UE generates a measurement report corresponding to each subframe set according to the single measurement result in each subframe set, and reports the measurement report to the base station.

Preferably, when the measurement subframe set indication information indicates one subframe set, if the UE determines that the measurement report of the one subframe set cannot be generated according to the current cell state, the UE sends a request for increasing the measurement density to the base station.

A method for reporting signal measurement results comprises the following steps:

user Equipment (UE) measures signals and receives reported subframe set indication information which is sent by a base station and used for indicating one or two subframe sets;

the UE reports the measurement result of each subframe set indicated by the reporting subframe set indication information to the base station;

and the small cell switching states of all subframes in the same subframe set indicated by the reported subframe set indication information are the same.

Preferably, when the reporting subframe set indication information indicates one subframe set, the reporting subframe set indication information is: the method comprises the steps of explicitly indicating subframe set indication information of a small cell in an open or closed state, or indicating information for reporting a measurement result based on a discovery signal DRS, or indicating information for reporting a measurement result based on an existing reference signal.

Preferably, when only the UE is configured to perform measurement based on the DRS and not configured to perform measurement based on the existing reference signal, the indication information reported based on the DRS is used to implicitly indicate that a subframe set corresponding to the reported measurement result is a subframe set in which the small cell is in an open state;

when only the UE is configured to measure based on the existing reference signal and the small cell has the switch function enabled, the indication information reported based on the existing reference signal is used for implicitly indicating the subframe set corresponding to the reported measurement result, where the small cell is in the subframe set in the on state.

Preferably, when the reporting subframe set indication information indicates two subframe sets, the reporting subframe set indication information is:

indicating information indicating that one subframe set is a subframe set of which the small cell is in an open state and indicating that the other subframe set is a subframe set of which the small cell is in a closed state; or,

and indicating one subframe set as indication information for reporting the measurement result based on the DRS and indicating the other subframe set as indication information for reporting the measurement result based on the existing reference signals.

Preferably, when the UE is configured to perform measurement based on the existing reference signal and the DRS, the indication information for reporting the measurement result based on the DRS is used to implicitly indicate that the subframe set corresponding to the reported measurement result is a subframe set in which the small cell is in an off state, and the indication information for reporting the measurement result based on the existing reference signal is used to implicitly indicate that the subframe set corresponding to the reported measurement result is a subframe set in which the small cell is in an on state.

Preferably, the reporting, by the UE, the measurement result of each subframe set to the base station includes: the UE combines a plurality of measurement results in the same subframe set to generate a corresponding measurement report, and reports the measurement report of each subframe set to the base station; or the UE generates a corresponding measurement report from a single measurement result in the same subframe set and reports the measurement report to the base station.

Preferably, when the reporting subframe set indication information indicates one subframe set, if the UE determines that the measurement report of the one subframe set cannot be generated according to the current cell state, the UE sends a request for increasing the measurement density to the base station.

A signal measurement and reporting method comprises the following steps:

the method comprises the steps that User Equipment (UE) carries out signal measurement and receives measurement hypothesis information which is sent by a base station and used for indicating measurement characteristics;

the UE reports a measurement result reflecting the measurement characteristics indicated by the measurement hypothesis information to the base station;

wherein the measurement characteristic is a measurement result characteristic that the small cell is in an open or closed state.

Preferably, the measurement hypothesis information is: information explicitly indicating measurement characteristics of small cells in an on or off state.

Preferably, the measurement hypothesis information is carried in measurement configuration information or measurement report configuration information.

Preferably, indication information of enabling a switch function of the small cell is used as the measurement assumption information for implicitly indicating a measurement result characteristic of the small cell in an open state.

Preferably, when the measurement characteristic is a measurement result characteristic when the small cell is in an open state, the reporting, by the UE, the measurement result reflecting the measurement characteristic indicated by the measurement assumption information to the base station includes: processing a signal measurement result on a subframe of the small cell in an open state, generating the measurement report and reporting the measurement report to the base station; or equivalently converting the signal measurement result of the sub-frame of the small cell in the closed state into the measurement result of the small cell in the open state, generating the measurement report according to the converted measurement result, and reporting the measurement report to the base station; or equivalently converting the signal measurement result on the subframe of the small cell in the closed state into the measurement result of the small cell in the open state, combining the converted measurement result with the measurement result on the subframe of the small cell in the open state, generating the measurement report, and reporting the measurement report to the base station;

when the measurement characteristic is a measurement result characteristic when the small cell is in the closed state, reporting, by the UE, the measurement result reflecting the measurement characteristic indicated by the measurement assumption information to the base station includes: processing a signal measurement result on a subframe of a small cell in a closed state, generating a measurement report and reporting the measurement report to the base station; or equivalently converting the signal measurement result of the subframe of the small cell in the open state into the measurement result of the small cell in the closed state, generating the measurement report according to the converted measurement result, and reporting the measurement report to the base station; or equivalently converting the signal measurement result on the subframe of the small cell in the open state into the measurement result of the small cell in the closed state, combining the converted measurement result with the measurement result on the subframe of the small cell in the closed state, generating the measurement report, and reporting the measurement report to the base station.

A signal measurement method, comprising:

a base station sends measurement subframe set indication information to User Equipment (UE) for indicating the UE to carry out signal measurement in one or two subframe sets indicated by the measurement subframe set indication information;

the base station receives a signal measurement result fed back by the UE and corresponding to each subframe set indicated by the measurement subframe set indication information;

indicating one measurement subframe set as a subframe set of a small cell in an open state and indicating the other measurement subframe set as a subframe set of the small cell in a closed state; or,

Preferably, when the measurement subframe set indication information indicates one subframe set, if the base station determines that the UE cannot obtain the measurement report of the one subframe set according to the cell status, or if the base station receives a request for increasing the measurement density sent by the UE, the base station switches the on-off status of the small cell and at least maintains the set time length.

a base station sends reporting subframe set indication information to User Equipment (UE) and is used for indicating one or two subframe sets on which measurement results reported by the UE are based;

the base station receives a signal measurement result which is fed back by the UE and corresponds to each subframe set indicated by the reported subframe set indication information;

and the small cell switch states of all subframes in the same subframe set indicated by the reported subframe set information are the same.

Preferably, when the reporting subframe set indication information indicates one subframe set, the reporting subframe set indication information is: indicating information of a subframe set indicating that the small cell is in an open or closed state, or indicating information for reporting a measurement result based on a discovery signal DRS, or indicating information for reporting a measurement result based on an existing reference signal.

when only the UE is configured to measure based on the existing reference signal and the small cell has the switch function enabled, the indication information reported based on the existing reference signal is used for implicitly indicating the subframe set corresponding to the reported measurement result, where the small cell is in the subframe set in the on state

Preferably, when the reporting subframe set indication information indicates two subframe sets, the measurement subframe set information is:

Preferably, when the reported subframe set indication information indicates one subframe set, if the base station determines that the UE cannot obtain the measurement report of the one subframe set according to the cell state, or if the base station receives a request for increasing the measurement density sent by the UE, the base station switches the on-off state of the small cell and at least maintains the set time length.

A signal measurement and reporting method comprises the following steps:

the base station sends measurement hypothesis information for indicating measurement characteristics to the user equipment UE;

the base station receives a signal measurement result reflecting the measurement characteristic and fed back by the UE;

Preferably, the measurement hypothesis information is: information explicitly indicating measurement result characteristics for which the small cell is in an on or off state.

Preferably, indication information of enabling the switch function of the small cell is used as the measurement assumption information for implicitly indicating the measurement result characteristic of the small cell in the on or off state.

A user equipment, comprising: the device comprises an information receiving unit, a measuring unit and a reporting unit;

the information receiving unit is used for receiving measurement subframe set indication information sent by a base station;

the measurement unit is configured to perform signal measurement on one or two subframe sets indicated by the measurement subframe set indication information, and send a measurement result corresponding to each subframe set indicated by the measurement subframe set information to the reporting unit;

the reporting unit is configured to report the measurement result corresponding to each subframe set sent by the measurement unit to the base station;

the information receiving unit is used for receiving reported subframe set information which is sent by a base station and used for indicating one or two subframe sets;

the measurement unit is configured to perform signal measurement and send a measurement result of each subframe set indicated by the reported subframe set information to the reporting unit;

and the small cell switching states of all subframes in the same subframe set indicated by the measurement subframe set information are the same.

the information receiving unit is used for receiving measurement hypothesis information which is sent by the base station and used for indicating measurement characteristics;

the measurement unit is configured to perform signal measurement and send a measurement result reflecting the measurement characteristic indicated by the measurement assumption information to the reporting unit; wherein the measurement characteristic is a measurement result characteristic of a small cell in an open or closed state;

and the reporting unit is used for reporting the measurement result sent by the measurement unit to the base station.

A base station, comprising: an information transmitting unit and a measurement result receiving unit;

the information sending unit is configured to send measurement subframe set indication information to a user equipment UE, where the measurement subframe set indication information is used to indicate the UE to perform signal measurement in one or two subframe sets indicated by the measurement subframe set indication information;

the measurement result receiving unit is configured to receive a signal measurement result corresponding to each subframe set indicated by the measurement subframe set indication information, fed back by the UE;

the information sending unit is configured to send reporting subframe set indication information to user equipment UE, where the reporting subframe set indication information is used to indicate one or two subframe sets on which measurement results reported by the UE are based;

the measurement result receiving unit is configured to receive a signal measurement result, corresponding to each subframe set indicated by the reporting subframe set indication information, fed back by the UE;

the information sending unit is configured to send measurement assumption information indicating measurement characteristics to the user equipment UE; wherein the measurement characteristic is a measurement result characteristic of a small cell in an open or closed state;

the measurement result receiving unit is configured to receive a signal measurement result reflecting the measurement characteristic, which is fed back by the UE.

According to the technical scheme, the UE can distinguish the open state or the closed state of the small cell when the signal measurement or the measurement result is reported, so that the measurement results of the small cell in different states are prevented from being wrongly combined, and the network efficiency is improved.

Drawings

Figure 1 is a schematic diagram of a typical scenario of a small cell;

FIG. 2 is a flowchart of a signal measuring method in embodiment 1;

FIG. 3 is another flowchart of the signal measuring method in example 1;

fig. 4 is a flowchart of a method for reporting a signal measurement result in embodiment 2;

fig. 5 is another flowchart of a method for reporting a signal measurement result in embodiment 2;

fig. 6 is a flowchart of a signal measurement and reporting method in embodiment 3;

FIG. 7 is a flowchart of a signal measuring method in embodiment 4;

FIG. 8 is another flowchart of the signal measuring method in example 4;

fig. 9 is a flowchart of a method for reporting a signal measurement result in embodiment 5;

fig. 10 is another flowchart of a method for reporting a signal measurement result in embodiment 5;

fig. 11 is a flowchart of a signal measurement and reporting method in embodiment 6.

Detailed Description

For the purpose of making the objects, technical means and advantages of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings.

As described in the foregoing background, the switching function of the small cell may be realized by the semi-static switch and the dynamic switch. Only after the semi-static switching function or the dynamic switching function is enabled, the small cell has different states of on and off. The processing mode of the application is suitable for the small cell with the switch function being started.

The following describes generally the determination of the small cell being in an on or off state by the user equipment. After only the semi-static switch function is enabled, in an activated state, the user equipment considers that the small cell is in an open state, and in an inactivated or deactivated state, the user equipment considers that the small cell is in a closed state. The activation of the semi-static switch function may be an explicit signaling indication or may be indicated by configuring signaling indications for other functions, e.g., the activation of the semi-static switch function may be indicated by configuring DRS measurements.

After only the dynamic switching function is started, for the small cell in the activated state, indicating that the small cell is in the on or off state through additional signaling, wherein the signaling can be explicit indication of the switching state or implicit indication of the switching state through the existence of a reference signal; for a small cell in a deactivated or inactive state, the user equipment considers that the small cell is in an open state. The enabling of the dynamic switching function may be an explicit signaling indication or may be indicated by configuring signaling of other functions.

After the semi-static switch function and the dynamic switch function are both started, the user equipment considers that the small cell is in a closed state in an inactive or deactivated state; in the activated state, if the dynamic switch indicates that the cell is in the on state, the user equipment regards that the small cell is in the on state, and if the dynamic switch indicates that the cell is in the off state, the user equipment regards that the small cell is in the off state.

The application provides a signal measurement and reporting method, wherein a base station indicates UE to perform signal measurement in a specific subframe set, or reports a signal measurement result of the specific subframe set, so that the measurement results of different switch states of small cells are partitioned by the subframe set, erroneous combination processing of the measurement results in different switch states is avoided, and network efficiency is improved. The following describes the signal measurement and reporting method of the present application in detail from the UE side and the base station side, respectively.

Example 1

The embodiment of the invention provides a signal measurement method, which is explained from a user equipment side.

Fig. 2 is a flowchart of a signal measurement method according to an embodiment of the invention. Wherein, the base station indicates a measurement subframe set to perform signal measurement. As shown in fig. 2, the signal measurement method includes:

step 201, a user equipment UE receives measurement subframe set indication information sent by a base station.

The measurement subframe set indication information may be carried in measurement configuration information and sent to the UE. The measurement subframe set indication information is used for explicitly or implicitly indicating a subframe set for signal measurement, which is identified as a first measurement subframe set.

Step 202, the UE performs measurement on the indicated first measurement subframe set according to the measurement subframe set indication information, and obtains a first measurement result.

Step 203, the UE reports the first measurement result to the base station.

In step 201 of this embodiment, the measurement subframe set indication information transmitted by the base station may be a subframe set explicitly indicating that the measurement subframe set is a subframe set in which a small cell is in an on state, or a subframe set in which a small cell is in an off state. The indication information may be 1 bit, for example, "0" indicates a subframe set of the small cell in an on state, and "1" indicates a subframe set of the small cell in an off state, and if the bit of the indication information is empty, it may be considered as a subframe set defined by an existing measurement subframe set, for example, an unrestricted subframe set, or a subframe set configured in a bitmap form. Another implementation of the 1-bit indication information may be that "0" indicates an unrestricted subframe set, and "1" indicates a subframe set in which the small cell is in an on state. The indication information may also be 2 bits, for example, "0" indicates an unrestricted subframe set, "1" indicates a subframe set in which the small cell is in an on state, and "2" indicates a subframe set in which the small cell is in an off state.

In step 201 of this embodiment, the indication information based on what kind of reference signal measurement (i.e. measurement mechanism) may be directly used as the measurement subframe set indication information for implicitly indicating the measurement subframe sets of the small cells in different switch states. The indication information based on which reference signal measurement (i.e., measurement mechanism) is the existing information, for example, may be indication information for performing measurement based on a discovery signal (DRS) or an existing reference signal (e.g., CRS) (i.e., information for configuring existing CRS-based measurement for a UE or configuring DRS-based measurement for a UE). Because the existing information is the indication information based on which reference signal measurement (i.e., the measurement mechanism), the processing method only needs to borrow the existing information as the indication information of the measurement subframe set, and does not need to consume additional bandwidth resources to transmit the indication information of the measurement subframe set.

For example, in a scenario in which the semi-static switch is enabled, the base station configures only existing CRS-based measurement for the UE, and does not configure DRS-based measurement, and thus the measurement subframe set may be implicitly indicated as a subframe containing only CRS and a subframe containing both CRS and DRS, and thus the measurement subframe set may be implicitly indicated as a subframe set in which the small cell is in an on state. The enablement of the semi-static switch function may be an explicit signaling indication or an implicit indication by configuring the DRS measurement.

In a scenario that the dynamic switch is enabled, the base station configures only measurement based on the existing CRS for the UE, and does not configure measurement based on the DRS, so that the measurement subframe set can be implicitly indicated as a subframe only containing the CRS and a subframe simultaneously containing the CRS and the DRS, and thus the measurement subframe set can be implicitly indicated as a subframe set in which the small cell is in an on state; the base station only configures measurement based on the DRS for the UE, but not configures measurement based on the existing CRS, and the indication information for measurement based on the DRS may implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an open state.

The configuration based on the existing CRS measurement may be configured through an explicit signaling, or default to the measurement based on the existing CRS when the cell is in an on state.

In step 201 of this embodiment, the existing switching mechanism indication information of the small cell may also be directly used as the measurement subframe set indication information, which is used to implicitly indicate, according to the predefined, that the measurement subframe set is a subframe set in which the small cell is in an on or off state. Because the switching mechanism indication information of the small cell is the existing information, in the processing mode, only the existing information is needed to be borrowed as the measurement subframe set indication information, and bandwidth resources do not need to be consumed additionally to transmit the measurement subframe set indication information. Specifically, when the small cell switching mechanism indication information indicates that the switching function is enabled, the implicit indication measurement subframe set may be a subframe set in which the small cell is in an on state, or when the small cell switching mechanism indication information indicates that the switching function is enabled, the implicit indication measurement subframe set may be a subframe set in which the small cell is in an off state. The small cell switching mechanism indication information is existing information, and may be used to indicate whether to enable a switching function, where the switching function may include a semi-static switch and a dynamic switch. The switching mechanism indication information of the small cell is not limited to be carried in the measurement configuration information, and may also be located in other configuration information of the small cell, for example, in a radioresourceconfigcommon scell. The switching mechanism indication information of the small cell may be that the small cell activates dynamic switching, or the small cell does not activate dynamic switching, or the small cell activates semi-static switching, or the small cell does not activate semi-static switching. The dynamic switch or semi-static switch starting signaling of the small cell can adopt different signaling forms, such as 2-bit switch indication information, 00 denotes that the switch function is not started, 01 denotes that the dynamic switch function is started, and 10 denotes that the semi-static switch function is started. The dynamic switching or semi-static switching activation signaling of the small cell may also take the same form of signaling, indicated by being combined with other signaling. If the small cell switch function is started, the measurement subframe set can be implicitly indicated as a subframe set of the small cell in an on state, or the measurement subframe set can be implicitly indicated as a subframe set of the small cell in an off state. For example, the semi-static switch function is started, and the measurement subframe set is implicitly indicated as a subframe set of the small cell in an on state, that is, a subframe set of the small cell in an active state. If the small cell switch function is not started, the measurement subframe set can be implicitly indicated to be defined by the existing measurement subframe set. For example, it is not distinguished whether the small cell is in an activated or deactivated state.

In addition, the measurement subframe set indication information may also be implicitly indicated by the switching mechanism indication information of the small cell and the indication information based on which reference signal measurement is performed. This situation has been described in the aforementioned indication information based on what kind of reference signal measurement. For example, when the small cell switching mechanism indication information indicates that the small cell switching function is enabled, and only DRS-based measurement is configured, the measurement subframe set may be implicitly indicated as a subframe set in which the small cell is in an on state.

In step 202 of this embodiment, the UE may determine whether the current subframe belongs to the first measurement subframe set by dynamically detecting the on-off state of the small cell. The base station may indicate that the switch function is enabled, either explicitly or implicitly by configuring the UE with measurements of the DRS. For example, for a dynamic switching scenario, the small cell may be a serving cell of the UE and is an active cell. The small cell may be on or off in the active state. The UE detects the switch state of the small cell implicitly or explicitly, or detects the reference signal (CRS) or downlink scheduling control information (DLDCI) of each subframe to judge the state of the current subframe. When the measurement subframe set indication information sent by the base station indicates that the first measurement subframe set is a subframe set in which the small cell is in an on state, the UE determines whether the current subframe belongs to the first measurement subframe set, that is, if the current subframe is in the on state, the current subframe belongs to the first measurement subframe set.

The base station may explicitly indicate that the semi-static switch function is enabled or implicitly indicate that the semi-static switch function is enabled by configuring measurements of the DRS for the UE. For a semi-static switching scenario, the small cell may be a serving cell of the UE, and when the small cell is in an activated state, the small cell is simultaneously in an on state, and when the small cell is in an inactivated or deactivated state, the small cell may be in an off state. The UE will determine the state of the current subframe by receiving cell activation and deactivation signaling. Namely, after receiving the cell activation signaling, the UE determines that the subframe status is the subframe in the small cell on state until receiving the cell deactivation signaling, and after receiving the deactivation signaling, the UE determines that the subframe status is the subframe in the small cell off state until receiving the cell deactivation signaling. When the measurement subframe set indication information sent by the base station indicates that the first measurement subframe set is a subframe set in which the small cell is in an on state, the UE determines whether the current subframe belongs to the first measurement subframe set, that is, if the current subframe is in the on state, the current subframe belongs to the first measurement subframe set. For the adjacent cell with the same frequency as the service cell, the subframe state can be judged according to the state of the service cell. For the neighbor cells with different frequencies from the serving cell, if the user can know the cell status, similar operations can be performed according to the above-described method.

The UE performs measurement in the first measurement subframe set to generate a first measurement result. The specific method for measurement in the first measurement subframe may be implemented according to the prior art, or may be implemented according to other reasonable methods. The first measurement result may be a RRM measurement result, such as RSSI/RSRQ. It should be noted that the present invention does not limit the UE to perform measurement in each subframe of the first measurement subframe set, and the UE may perform measurement on some or all subframes according to the requirement. For example, the UE may perform measurements on a single or multiple subframes in the first measurement subframe set with a periodicity of 200 ms.

In step 203 of this embodiment, when the UE reports the first measurement result, the UE may combine and report a plurality of first measurement result samples. For example, the UE may combine the single or multiple first measurement result samples with a period of 200ms, and use the combined result as an input of a layer three filter (L3 filtering). The UE may report the results of the layer three filtering to the base station. The UE may also use a single first measurement result sample as an input to the layer three filter (L3filtering), for example, the first measurement result with the latest reporting period as an input to the layer three filter (L3 filtering).

Fig. 3 is another flowchart of a signal measurement method according to an embodiment of the present invention. Wherein, the base station indicates two measurement subframe sets to perform signal measurement. The same contents as those in fig. 2 are not described again. The signal measurement method comprises the following steps:

step 301, a user equipment UE receives measurement subframe set indication information sent by a base station.

The measurement subframe set indication information may be carried in measurement configuration information and sent to the UE. The measurement subframe set indication information is used for explicitly or implicitly indicating subframe sets of two signal measurements, respectively a first measurement subframe set and a second measurement subframe set.

Step 302, the UE performs measurement on the first measurement subframe set to obtain a first measurement result and performs measurement on the second measurement subset to obtain a second measurement result according to the measurement subframe set indication information.

Step 303, reporting the measurement result corresponding to the first measurement subframe set and the measurement result corresponding to the second measurement subframe set to the base station, respectively.

In step 301 of this embodiment, the measurement subframe set indication information sent by the base station may be an explicit indication of two measurement subframe sets, which may be a subframe set in which a small cell is in an on state and a subframe set in which a small cell is in an off state, respectively. It may be indicated by 2 bits, each bit corresponding to a measurement subframe set. If there is only 1 bit, only one set of measurement subframe set is considered, and the bit indicates the information of the set of measurement subframe set. It is also possible to indicate whether a single set or two sets of subframe sets are configured (i.e. corresponding to the configuration of step 201 in fig. 2 or the configuration of step 301 in fig. 3) by 1 bit, and to indicate the corresponding measurement subframe set information by an additional 1 bit or 2 bit.

In step 301 of this embodiment, indication information based on what kind of reference signal measurement (i.e., measurement mechanism) may be directly used as measurement subframe set indication information for implicitly indicating the subframe sets of the small cell in the on state and the off state. For example, when the base station configures the UE to perform DRS measurement and existing reference signal measurement, it is implicitly indicated to perform measurement in two subframe sets, where one subframe set may be based on DRS measurement and the other subframe set may be based on existing reference signals (e.g., CRS). Similar to fig. 2, since the indication information based on what kind of reference signal measurement (i.e., the measurement mechanism) is the existing information, in this processing manner, only the existing information needs to be borrowed as the measurement subframe set indication information, and no additional bandwidth resource needs to be consumed to transmit the measurement subframe set indication information.

Specifically, when the base station configures both the measurement based on the discovery signal and the measurement based on the existing reference signal for the UE, the indication information for performing measurement based on the existing reference signal may implicitly indicate that the first measurement subframe set is a subframe set for the base station to transmit the existing reference signal (e.g., CRS), the UE may perform measurement based on the existing reference signal, corresponding to a subframe set for the small cell to be in an on state, the indication information for performing measurement based on the DRS may implicitly indicate that the second measurement subframe set is a subframe set for the small cell to transmit only the discovery signal, and the UE may perform measurement based on the discovery signal, corresponding to a subframe set for the small cell to be in an off state. It is noted that the measurement based on the existing reference signal may be considered as a default configuration, that is, the measurement based on the existing reference signal may be configured without additional signaling, for example, when the small cell is a serving cell of the UE, the default UE may perform the measurement based on the existing reference signal on the small cell at least when the small cell is in an open state. In this case, the base station may configure only the UE with the discovery signal based measurements. In this case, the UE may consider that the small cell is performing measurement based on the discovery signal when the small cell is in the off state. Then, the first measurement subframe set is a subframe set in which the base station transmits an existing reference signal, that is, a subframe set in which the small cell is in an on state, and the second measurement subframe set is a subframe set in which the small cell transmits only a discovery signal, that is, a subframe set in which the small cell is in an off state.

In step 302 of this embodiment, the UE may determine whether the current subframe belongs to the first measurement subframe set or the second measurement subframe set by dynamically detecting the on-off state of the small cell.

In step 303 of this embodiment, the UE generates a measurement report corresponding to the first measurement subframe set according to the first measurement result, generates a measurement report corresponding to the second measurement subframe set according to the second measurement result, and reports the two measurement reports to the base station respectively. Wherein the measurement results of different measurement subframe sets cannot be combined. Specifically, the UE may generate measurement reports for the first measurement subframe set and the second measurement subframe set, respectively, and report the measurement reports. Specifically, a plurality of first measurement result samples may be combined to generate a measurement report, or a single first measurement result may be combined to generate a measurement report and be reported; and combining the plurality of second measurement result samples to generate a measurement report, or generating the measurement report from a single second measurement result and reporting the measurement report. The UE cannot combine the first measurement result with the second measurement result.

Example 2

The embodiment of the invention provides a method for reporting a signal measurement result, which is explained from a user equipment side.

Fig. 4 is a flowchart of a signal measurement reporting method according to an embodiment of the present invention. The base station indicates a measurement subframe set to report the signal measurement result. As shown in fig. 4, the method for reporting signal measurement includes:

in step 401, the ue measures a signal transmitted by a base station.

Step 402, the user equipment receives the reporting subframe set indication information sent by the base station.

The reporting subframe set indication information may be carried in the measurement report characteristic information for transmission. The reporting subframe set indication information is used for explicitly or implicitly indicating measurement subframe set information corresponding to a reporting result, and the measurement subframe set is called a first measurement subframe set.

Step 403, the UE reports the first measurement result obtained in the first measurement subframe set to the base station according to the reporting subframe set indication information.

Wherein the first measurement result is a sample obtained by measurement in part or all of the first subframe set.

In step 401 of the present embodiment, the UE may perform measurement on the received signal according to the prior art. For example, when the RSSI is measured, the measurement may be averaged over all OFDM symbols of one subframe, or may be averaged over symbols including only the reference signal CRSport 0. The UE may measure the received signal according to other reasonable methods. For example, when measuring RSSI, the measurement average may be performed on OFDM symbols in a subframe that do not contain a discovery signal, and the weighted RSRP of a certain cell may be added, or the measurement average may be performed on all OFDM symbols in a subframe that do not contain a discovery signal. The specific measurement method is not the focus of the present invention and will not be described again. It should be noted that, unlike the first embodiment, in this step, the subframe set available for UE measurement is not limited, that is, the UE may perform measurement in some specific subframes, for example, only in the subframe where the small cell is in the on state, or may perform measurement in any subframe.

In step 402 of this embodiment, the reporting subframe set indication information sent by the base station may be an explicit indication that a corresponding measurement subframe set is a subframe set of a small cell in an open state, or a subframe set of a small cell in a closed state. The indication information may be 1 bit, for example, "0" indicates a subframe set in which the small cell is in an open state, and "1" indicates a subframe set in which the small cell is in a closed state, and if the bit of the indication information is empty, it may be considered that the subframe set is defined according to the existing measurement reporting subframe set, for example, the subframe set is not limited. Another implementation of the 1-bit indication information may be that "0" indicates an unrestricted subframe set, and "1" indicates a subframe set in which the small cell is in an on state. The indication information may also be 2 bits, for example, "0" indicates an unrestricted subframe set, "1" indicates a subframe set in which the small cell is in an on state, and "2" indicates a subframe set in which the small cell is in an off state.

In step 402 of this embodiment, indication information based on which reference signal measurement (i.e., measurement mechanism) is directly used as indication information of a reporting subframe set, which is used to implicitly indicate that a measurement subframe set corresponding to a reporting result is a subframe set in which a small cell is in an open or closed state. The indication information based on which reference signal measurement (i.e., measurement mechanism) is the existing information, for example, the indication information may be the indication information based on DRS measurement or based on the existing reference signal (e.g., CRS) measurement. Similar to fig. 2, since the indication information based on what kind of reference signal measurement (i.e., the measurement mechanism) is the existing information, in this processing manner, only the existing information needs to be borrowed as the measurement subframe set indication information, and no additional bandwidth resource needs to be consumed to transmit the measurement subframe set indication information.

For example, in a semi-static switch scenario, the base station configures only measurement based on the existing CRS for the UE, but does not configure measurement based on the DRS, and thus the measurement subframe set corresponding to the reporting result may be implicitly indicated as a subframe only containing the CRS and a subframe simultaneously containing the CRS and the DRS, so that the measurement subframe set corresponding to the reporting result may be implicitly indicated as a subframe set in which the small cell is in an on state. The enablement of the semi-static switch function may be an explicit signaling indication or an implicit indication by configuring the DRS measurement.

In a dynamic switching scene, a base station only configures measurement based on the existing CRS for the UE, but not configures measurement based on the DRS, so that a measurement subframe set corresponding to a reporting result can be implicitly indicated as a subframe only containing the CRS and a subframe simultaneously containing the CRS and the DRS, and thus the measurement subframe set corresponding to the reporting result can be implicitly indicated as a subframe set in which the small cell is in an on state; the base station only configures measurement based on the DRS for the UE, but not configures measurement based on the existing CRS, and then implicitly indicates that the measurement subframe set corresponding to the reporting result is the subframe set in which the small cell is in the open state.

In step 402 of this embodiment, the existing switching mechanism indication information of the small cell may be directly used as the reporting subframe set indication information, and the reporting result is used to indicate, according to the predefined implicit indication, the corresponding measurement subframe set as the subframe set in which the small cell is in the on or off state. Similar to fig. 2, since the switching mechanism indication information of the small cell is the existing information, in this processing manner, only the existing information needs to be borrowed as the measurement subframe set indication information, and no additional bandwidth resource needs to be consumed to transmit the measurement subframe set indication information. Specifically, it may be predefined that when the small cell switching mechanism indication information indicates to enable the switching function, the measurement subframe set corresponding to the implicit indication reporting result is the subframe set of the small cell in the on state, or it may be predefined that when the small cell switching mechanism indication information indicates to enable the switching function, the measurement subframe set corresponding to the implicit indication reporting result is the subframe set of the small cell in the off state. The small cell switching mechanism indication information is existing information, and may be used to indicate whether to enable a switching function, where the switching function may include a semi-static switch and a dynamic switch. If the small cell starts the dynamic switching function, the measurement subframe set corresponding to the report result can be implicitly indicated as a subframe set of the small cell in an on state, and if the small cell does not start the dynamic switching function, the measurement subframe set corresponding to the report result can be implicitly indicated as the definition of the existing measurement subframe set.

It is noted that although the UE may measure in the non-first set of subframes, only the first measurement result obtained in the first set of subframes can be taken as the first measurement report result.

In step 403 of this embodiment, the UE processes the first measurement result obtained in the first measurement subframe set according to the reporting subframe set indication information, generates a first type measurement report, and reports the first type measurement report to the base station. Specifically, the UE may determine a first measurement subframe set according to reporting subframe set indication information sent by the base station, merge first measurement result samples in the first measurement subframe sets, and report the first measurement result samples. For example, the UE may combine the single or multiple first measurement result samples with a period of 200ms, and use the combined result as an input of a layer three filter (L3 filtering). The UE may report the results of the layer three filtering to the base station. The UE may also use a single first measurement result sample as an input to the layer three filter (L3filtering), for example, the first measurement result with the latest reporting period as an input to the layer three filter (L3 filtering). However, the UE may not report the measurement result in the non-first measurement subframe set in the report, or may not report the measurement result in the non-first measurement subframe set in the report after combining the measurement result in the non-first measurement subframe set with the first measurement result obtained in the first measurement subframe set. The first measurement result may be RSSI, and the first measurement subframe set may be a subframe set of a small cell in an on state, or a subframe set of a small cell in an off state.

The sequence of steps 401 and 402 in this embodiment is not limited, and may be performed simultaneously, or step 402 precedes step 401.

Fig. 5 is another flowchart of a method for reporting signal measurement according to an embodiment of the present invention. And the base station indicates the two subframe sets to report the signal measurement result. The same contents as those in fig. 4 are not described again. The signal measurement reporting method comprises the following steps:

step 501, the user equipment measures signals sent by the base station.

Step 502, the ue receives the reported subframe set indication information sent by the base station.

The reporting subframe set indication information may be carried in the measurement report characteristic information for transmission. The reported subframe set indication information is used for explicitly or implicitly indicating measurement subframe set information corresponding to the two measurement reports, and the two measurement subframe sets are a first measurement subframe set and a second measurement subframe set respectively.

In step 503, the UE reports the measurement results obtained in the two measurement subframe sets to the base station according to the reporting subframe set indication information.

In step 502 of this embodiment, the reporting subframe set indication information sent by the base station may be two measurement subframe sets corresponding to the two measurement reports, which are displayed to indicate that the small cell is in an on state and the small cell is in an off state, respectively. In another mode of this embodiment, a first measurement subframe set corresponding to a first measurement report indicated by a base station is a subframe set in which a small cell is in an on state, and a second measurement subframe set corresponding to a second measurement report is a subframe set in which a small cell is in an off state or a subframe set without additional restrictions; or, the first measurement subframe set corresponding to the first measurement report indicated by the base station is a subframe set of the small cell in an off state, and the second measurement subframe set corresponding to the second measurement report is a subframe set of the sub-cell or the small cell in an on state without additional limitation. The subframe set without additional restriction refers to a set based on an existing mechanism, and for example, the subframe set can be configured in any subframe or in a bitmap at a higher layer. When two sets of measurement reports are configured, one set may be defaulted to the existing mechanism, and the second set is the measurement report of the type that needs to be configured.

In step 502 of this embodiment, indication information of which reference signal measurement (i.e., measurement mechanism) the reporting result is based on may be directly used as the indication information of the reporting subframe set, which is used to implicitly indicate that the measurement subframe set corresponding to the reporting result is a subframe set in which the small cell is in an open or closed state. Because the indication information based on which reference signal measurement (i.e. measurement mechanism) is the existing information, in this processing mode, only the existing information needs to be borrowed as the indication information of the reported subframe set, and no additional bandwidth resource needs to be consumed to transmit the indication information of the reported subframe set. For example, when the base station configures the UE to perform DRS measurement and measure with the existing reference signal, it implicitly indicates that two sets of measurement reports are configured, where a first measurement report corresponds to a measurement result based on the existing reference signal, that is, a measurement result corresponding to a subframe set of the small cell in the on state, and a second measurement report corresponds to a measurement result based on the discovery signal, that is, a measurement result corresponding to a subframe set of the small cell in the off state. Or when the UE configures the measurement based on the discovery signal and the existing reference signal, the system defaults that the UE configures two sets of measurement reports, wherein the first measurement report corresponds to the result of the measurement based on the existing reference signal, and the second measurement report corresponds to the result of the measurement based on the discovery signal. As shown in fig. 3, the measurement based on the existing reference signal may also be considered as a default configuration, that is, the measurement based on the existing reference signal may be configured without additional signaling, and when the base station configures the measurement based on the discovery signal for the serving cell of the UE, it is considered that both the measurement based on the existing reference signal and the measurement based on the discovery signal are configured.

In step 503 of this embodiment, the UE respectively processes the measurement results obtained in the two measurement subframe sets according to the reporting subframe set indication information, generates two measurement reports corresponding to the two measurement subframe sets, and reports the two measurement reports to the base station. Specifically, a first measurement result obtained in the first measurement subframe set is processed to generate a first type of measurement report, and a second measurement result obtained in the second measurement subframe set is processed to generate a second type of measurement report. The first measurement result is a sample obtained by measurement in part or all of the first subframe set, and the second measurement result is a sample obtained by measurement in part or all of the second subframe set. Wherein, when generating the measurement report, the measurement results of different measurement subframe sets cannot be combined. The UE may generate a measurement report of the first measurement subframe set and a measurement report of the second measurement subframe set for the measurement results of the first measurement subframe set and the second measurement subframe set, respectively, and report the measurement reports. Specifically, the first measurement result samples obtained in the plurality of first measurement subframe sets may be combined to generate a first measurement report, or the single first measurement result may be combined to generate the first measurement report and report the first measurement report; and combining the second measurement result samples in the plurality of second measurement subframes to generate a second measurement report, or generating and reporting the second measurement report by using a single second measurement result. But the UE may not report the first measurement result and the second measurement result after combining them in the first measurement report or the second measurement report.

Example 3

Fig. 6 is a flowchart of a signal measurement and reporting method according to an embodiment of the present invention. The base station indicates measurement hypothesis information, and the UE reports a measurement result reflecting the measurement characteristics indicated by the hypothesis information. The same contents as those in fig. 4 and 5 will not be described again. The signal measurement reporting method comprises the following steps:

step 601, the user equipment measures the signal sent by the base station.

In step 602, the ue receives measurement assumption information sent by the base station. Wherein the measurement hypothesis information is used to indicate a measurement characteristic, which is a measurement result characteristic of the small cell in an on or off state.

Step 603, the UE reports the measurement result reflecting the measurement characteristic indicated by the measurement assumption information to the base station. Wherein, the measurement report may be obtained according to the measurement result of the subframe in which the small cell is in the on state and/or the measurement result of the subframe in which the small cell is in the off state.

In step 602 in this embodiment, the measurement assumption information sent by the base station may be an explicit indication that the measurement result reported by the UE needs to reflect the measurement result that the small cell is in the open state or the measurement result that the small cell is in the closed state. The measurement assumption information may be carried in the measurement configuration information or the measurement report configuration information for transmission. It should be noted that, unlike step 201, step 301, step 402 and step 502, step 602 does not limit the measurement subframe set corresponding to the UE performing measurement or the UE reporting report, but only defines that the final measurement result reported by the UE needs to reflect the result of the small cell state configured by the base station.

In step 602 in this embodiment, the switching mechanism indication information of the small cell may also be directly used as measurement assumption information, which is used to implicitly indicate that the measurement report reported by the UE needs to reflect the measurement result that the small cell is in the on or off state. The switching mechanism indication information of the small cell is the existing indication information, and is not necessarily issued in the measurement process, and the measurement characteristics corresponding to different switching mechanism indication information may be predefined in the standard. In the measuring process, the user equipment judges the measuring characteristics of the measuring result to be reported according to the received switching mechanism indication information. Specifically, if the switching mechanism indication information received by the ue is information that the small cell enables the switching function, in the measurement process, the information is used as measurement assumption information, and the implicit indication indicates that the measurement result needs to reflect the measurement result that the small cell is in the on or off state. If the switching mechanism indication information received by the UE indicates that the small cell does not enable the switching function, the UE corresponding to the report result may be implicitly indicated as the measurement assumption information in the measurement process, where the measurement assumption information indicates that the UE corresponding to the report result assumes the prior art. In this way, only the existing information needs to be borrowed as the measurement hypothesis information, and no additional bandwidth resource needs to be consumed to transmit the measurement hypothesis information.

In step 603 of this embodiment, the UE generates a measurement report reflecting the measurement characteristics indicated by the measurement assumption information according to the signal measurement result, and reports the measurement report to the base station. Specifically, the UE processes a first measurement result obtained by measurement on the first measurement subframe set and/or a second measurement result obtained by measurement on the second measurement subframe set according to the measurement characteristic indicated by the measurement assumption information, reports the first measurement result and/or the second measurement result to an upper layer, and reports the first measurement result and/or the second measurement result to the base station. For example, the measurement characteristic indicated by the reporting result indicated by the base station is a measurement result that needs to reflect that the small cell is in an open state, and the UE may generate the reporting result in at least three ways. Method one, the UE may perform multi-sampling point combining or single-point processing on only a measurement result obtained by measurement when the small cell is in the open state, for example, a first measurement result obtained by measurement on a first measurement subframe set, and use the combined result as an input of an L3filtering filter; the UE may report the results of the layer three filtering to the base station. In the second method, the UE may convert the measurement result obtained when the small cell is in the closed state to obtain an equivalent measurement result when the small cell is in the open state, and generate a measurement report according to the converted measurement result. The method three, the UE may merge the measurement result obtained by the measurement when the small cell is in the open state with the measurement result obtained when the small cell is in the closed state, where the measurement result obtained when the small cell is in the closed state needs to be converted to obtain an equivalent measurement result when the small cell is in the open state, and merge the equivalent measurement result with the measurement result when the small cell is in the open state, and use the merged result as the input of a layer three filter (L3 filtering); the UE may report the results of the layer three filtering to the base station. The present invention is not limited to a specific conversion method.

The higher layer signaling in embodiments 4 and 5 is preferably RRC layer signaling, and may also be MAC layer signaling.

Example 4

The present embodiment of the invention provides a signal measurement method, and corresponds to embodiment 1, and the present invention is described from the base station side. The same contents as those of embodiment 1 will not be described again.

Fig. 7 is a flowchart of a signal measurement method according to an embodiment of the present invention, in which a base station instructs a measurement subframe set to perform signal measurement. As shown in fig. 7, the signal measurement method includes:

step 701, a base station configures a set of measurement resources for a user equipment through a high-level signaling, so that the user equipment performs measurement in a configured first measurement subframe set to obtain a first measurement result.

In step 701 of this embodiment, the base station sends measurement subframe set indication information when configuring measurement resources for the UE. The measurement subframe set indication information may be carried in measurement configuration information for transmission. The measurement subframe set indication information may be an explicit subframe set indicating that the measurement subframe set is a subframe set in which the small cell is in an on state, or a subframe set in which the small cell is in an off state, and the measurement subframe set indicated by the measurement subframe set indication information is referred to as a first measurement subframe set. An IE may be newly defined in the higher layer signaling for indicating the first measurement subframe set, and the newly defined IE may be added to the higher layer signaling of the existing measurement object configuration, for example, MeasObjectEUTRA in a form similar to meassubframepatternconfiguring neighbor, but the measurement configuration information may configure the serving small cell, or may be added to the existing configuration signaling for the serving cell, for example, RadioResourceConfigDedicated in a form similar to meassubframepatternpscell, but the configuration information may be configured as the serving small cell of Scell, or radioresourceconfigcommon Scell. It should be noted that the configuration of the existing measurement subframe set is in the form of bitmap, and indicates the corresponding subframe uniquely, for example, in an FDD system, meassubframe pattern is a bit with a length of 40, and indicates whether each subframe with a period of 40ms is configured as a measurement subframe through a 0,1 state of each bit. The indication of the subframe set in the invention is the indication of the characteristics of the subframe set, so the indicated subframe set does not necessarily set the subframe with a fixed subframe mark as a measurement subframe set according to a certain period, but can be dynamically changed according to requirements. For example, the subframe set indication of the present embodiment may be represented by 1 bit, where 0 represents a subframe in which the small cell is in an on state, and 1 represents a subframe in which the small cell is in an off state. Since the on and off states of the cell are dynamically changed, the number of subframes corresponding to the number of subframes included in the subframe set can be dynamically changed. Table one gives an example of this embodiment.

Watch 1

The MeasSubframePattern-r1x may be occupied { sftpype 0, sftpype 1}, sftpype 0 indicates a subframe set of the small cell in the on state, sftpype 1 indicates a subframe set of the small cell in the off state, or the MeasSubframePattern-r1x may be INTEGER (0,1), where 0 indicates a subframe set of the small cell in the on state, and 1 indicates a subframe set of the small cell in the off state. If the meassubframe pattern-r1x is empty, it can be considered as defined by the existing measurement subframe set. Another indication manner of MeasSubframePattern-r1x may be that "0" indicates an unrestricted subframe set, and "1" indicates a subframe set in which the small cell is in an open state. The indication information may also be 2 bits, for example, "0" indicates an unrestricted subframe set, "1" indicates a subframe set in which the small cell is in an on state, and "2" indicates a subframe set in which the small cell is in an off state.

In step 701 of this embodiment, the indication information based on what kind of reference signal measurement (i.e. measurement mechanism) may be directly used as the measurement subframe set indication information for implicitly indicating the UE to perform signal measurement in the subframe set of the small cell in the on or off state. The indication information based on which reference signal measurement (i.e., measurement mechanism) is the existing information, for example, the indication information based on whether the measurement is performed based on a discovery signal (DRS) or an existing reference signal (e.g., CRS) may be used. Because the indication information based on which reference signal measurement (i.e., measurement mechanism) is the existing information, in this processing mode, only the existing information needs to be borrowed as the measurement subframe set indication information, and no additional bandwidth resource needs to be consumed to transmit the measurement subframe set indication information. The state of the small cell implicitly indicated by the indication information for performing measurement based on the DRS and the indication information for performing measurement based on the existing reference signal is the same as that described in step 201 in fig. 2, and is not described again here. The IE configuring the higher layer signaling for measurement based on the discovery signal may be added to the higher layer signaling of an existing measurement object configuration, e.g., MeasObjectEUTRA, and the configuration information may configure the serving small cell, or may be added to the existing configuration signaling for the serving cell, e.g., radioresourceconfigcommon scell.

In step 701 of this embodiment, the existing switching mechanism indication information of the small cell may be directly used as the measurement subframe set indication information, which is used to implicitly indicate the UE to perform signal measurement on the subframe set of the small cell in the on or off state according to the predefined. Because the switching mechanism indication information of the small cell is the existing information, in the processing mode, only the existing information is needed to be borrowed as the measurement subframe set indication information, and bandwidth resources do not need to be consumed additionally to transmit the measurement subframe set indication information. Specifically, when the small cell switching mechanism indication information indicates that the switching function is enabled, the implicit indication measurement subframe set may be a subframe set in which the small cell is in an on state, or when the small cell switching mechanism indication information indicates that the switching function is enabled, the implicit indication measurement subframe set may be a subframe set in which the small cell is in an off state. The small cell switching mechanism indication information is existing information, and may be used to indicate whether to enable a switching function, where the switching function may include a semi-static switch and a dynamic switch. The switching mechanism indication information of the small cell may be located in configuration information of the small cell, e.g. in a radioresourceconfigcommoncscell. If the small cell starts the switch function, the measurement subframe set can be implicitly indicated as a subframe set of the small cell in an on or off state, and if the small cell does not start the switch function, the measurement subframe set can be implicitly indicated as an existing measurement subframe set definition.

In addition, the measurement subframe set indication information may also be implicitly indicated by the switching mechanism indication information of the small cell and the indication information based on which reference signal measurement is performed. For example, when the small cell switching mechanism indicates that the small cell is in a dynamic switching state and based on DRS measurement, then the measurement subframe set may be implicitly indicated as the subframe set in which the small cell is in an on state.

In step 702, the base station receives information indicating channel quality sent by the user equipment. The channel quality information reported by the UE is a measurement result obtained on a measurement resource configured by the base station.

Fig. 8 is another flowchart of a signal measurement method according to an embodiment of the present invention. Wherein, the base station indicates two measurement subframe sets to perform signal measurement. As shown in fig. 8, the signal measurement method includes:

step 801, a base station configures two sets of measurement resources for a user equipment through a high-level signaling, so that the user equipment respectively performs measurement in a configured first measurement subframe set to obtain a first measurement result, and performs measurement in a second measurement subframe set to obtain a second measurement result.

In step 801 of this embodiment, the measurement subframe set indication information sent by the base station may explicitly indicate two measurement subframe sets, which may be a subframe set in which a small cell is in an on state and a subframe set in which a small cell is in an off state, respectively. The IE indicating the higher layer signaling of the first measurement subframe set and the second measurement subframe set may be newly defined, and the newly defined IE may be added to the higher layer signaling of the existing measurement object configuration, for example, MeasObjectEUTRA, or may be added to the existing configuration signaling to the serving cell, for example, RadioResourceConfigDedicated or radioresourceconfigcommon scell. Table two gives an example of this embodiment.

Watch two

Wherein meassubframepatternsscellselset 1-r1X represents a first measurement subframe set, and meassubframepatternsscellselset 2-r1X represents a second measurement subframe set. If meassubframe pattern scellselset 2-r1X is not configured, then only the first measurement subframe set is considered. In another implementation, a single set or two sets of subframe sets may also be configured by using bit indication, and corresponding measurement subframe set information may be indicated by additional 1 bit or 2 bits. For example,

watch III

Wherein, NumMeasSubframePattern Scell-r1X represents the number of measurement subframe sets, 1 represents 1 set, and 2 represents 2 sets. Or the nummeassubframepatternsscell-r 1X indicates the number of the measurement subframe sets except the existing measurement method, 0 indicates the measurement only according to the existing measurement method, the first measurement subframe set is defined by the existing subframe set, 1 indicates the measurement is performed according to the configured subframe set even if the measurement is performed according to the existing measurement method, namely, the first measurement subframe set is defined by the existing subframe set, and the second measurement subframe set is configured by the meassubframepatternsscellsesell 1-r 1X.

In step 801 of this embodiment, the indication information based on what kind of reference signal measurement (i.e. measurement mechanism) may be directly used as the measurement subframe set indication information for implicitly indicating the UE to perform signal measurement in the subframe set of the small cell in the on and off states. Because the indication information based on which reference signal measurement (i.e., measurement mechanism) is the existing information, in this processing mode, only the existing information needs to be borrowed as the measurement subframe set indication information, and no additional bandwidth resource needs to be consumed to transmit the measurement subframe set indication information. The state of the small cell implicitly indicated by the indication information for performing measurement based on the DRS and the indication information for performing measurement based on the existing reference signal is the same as that described in step 301 in fig. 3, and is not described here again. The configuration may be added to the higher layer signaling of the existing measurement object configuration, e.g. MeasObjectEUTRA, based on IE of the higher layer signaling of the discovery signal measurement, which configuration information may configure the serving small cell, or may be added to the existing configuration signaling of the serving cell, e.g. radioresourceconfigcommon scell.

In step 802, the base station receives information indicating channel quality sent by the user equipment. The channel quality information reported by the UE is a measurement result obtained on a measurement resource configured by the base station.

Example 5

This embodiment provides a method for reporting a signal measurement result, which corresponds to embodiment 2, and the present invention is described from a base station side. Here, similar portions to those in embodiment 4 are not described again, and only descriptions of different portions are given.

Fig. 9 is a flowchart of a signal measurement reporting method according to an embodiment of the present invention. And the base station configures a measurement result report of a subframe set. As shown in fig. 9, the method for reporting signal measurement includes:

in step 901, the base station sends reporting subframe set indication information to the UE through a high-level signaling, so as to indicate the measurement subframe set information on which the UE reports the measurement result, so that the UE processes the first measurement result obtained in the indicated first measurement subframe set to generate a first measurement report. The reporting subframe set indication information may be carried in the measurement reporting configuration information for transmission.

In step 901 of this embodiment, the reporting subframe set indication information sent by the base station may be a subframe set where a measurement subframe set corresponding to a measurement result reported by the displayed UE is in an open state of the small cell, or a subframe set where the small cell is in a closed state. An IE for indicating a higher layer signaling of a measurement subframe set on which a measurement result is reported may be newly defined, and may be added to a higher layer signaling of an existing measurement report configuration, for example, a reportConfigToAddModList, or may be added to an existing configuration signaling of a serving cell, for example, a RadioResourceConfigDedicated or radioResourceConfigCommonSCell. Similar to step 701, it may be indicated by 1 bit or 2 bits. It is noted that, unlike step 701, step 901 indicates a first set of measurement subframes on which the first measurement report is based.

In step 902 of this embodiment, the indication information based on which reference signal measurement (i.e. measurement mechanism) may be directly used as the indication information of the reporting subframe set, which is used to implicitly indicate that the measurement subframe set corresponding to the measurement result reported by the UE is the subframe set in which the small cell is in the on or off state. The indication information based on which reference signal measurement (i.e., measurement mechanism) is the existing information, for example, the indication information may be the indication information based on DRS measurement or based on the existing reference signal (e.g., CRS) measurement. Because the indication information based on which reference signal measurement (i.e. measurement mechanism) is the existing information, in this processing mode, only the existing information needs to be borrowed as the indication information of the reported subframe set, and no additional bandwidth resource needs to be consumed to transmit the indication information of the reported subframe set. The state of the small cell corresponding to the reporting result implicitly indicated by the indication information for performing measurement based on the DRS and the indication information for performing measurement based on the existing reference signal is the same as that described in step 402 in fig. 4, and is not described here again. The IE configuring the higher layer signaling based on discovery signal measurement may be added to the higher layer signaling of an existing measurement object configuration, e.g. MeasObjectEUTRA, which configuration information may configure the serving small cell, or may be added to the existing configuration signaling to the serving cell, e.g. radioresourceconfigcommon scell.

In step 902 of this embodiment, the reporting subframe set indication information sent by the base station may be switching mechanism indication information of the small cell, and is used to implicitly indicate that the measurement subframe set corresponding to the measurement result reported by the UE is a subframe set in which the small cell is in an on or off state. The switching mechanism indication information of the small cell may be located in configuration information of the small cell, e.g. in a radioresourceconfigcommoncscell. If the small cell starts the switch function, the measurement subframe set can be implicitly indicated to be the subframe set of the small cell in the on or off state, and if the small cell does not start the switch function, the measurement subframe set can be implicitly indicated to be defined as the existing measurement subframe set.

In step 902, the base station receives information indicating channel quality sent by the user equipment. The channel quality information reported by the UE is a measurement result obtained on a measurement resource corresponding to a reporting result configured by the base station.

Fig. 10 is another flowchart of a method for reporting a signal measurement result according to an embodiment of the present invention. And the base station configures the reporting of the measurement results of the two subframe sets. The difference between step 1001 and step 801 is that the base station configures, for the UE through high-level signaling, measurement subframe set information, which is a first measurement report and a second measurement report, on which the two UEs report measurement reports.

Example 6

Fig. 11 is a flowchart of a signal measurement and reporting method according to an embodiment of the present invention. The base station indicates measurement hypothesis information for indicating the UE to report a measurement result reflecting the measurement characteristic indicated by the hypothesis information. As shown in fig. 11, the method for reporting signal measurement includes:

step 1101, the base station sends measurement assumption information to the UE through a high-level signaling, so as to configure the measurement characteristics corresponding to the measurement result reported by the UE, so that the UE feeds back a measurement report reflecting the measurement characteristics according to the signal measurement result. Specifically, a first measurement result obtained by measurement on the first measurement subframe set and/or a second measurement result obtained by measurement on the second measurement subframe set are processed and reported to the base station.

In step 1101 of this embodiment, the measurement hypothesis information may be carried in the measurement configuration information or the measurement report configuration information for transmission. Specifically, the measurement assumption information sent by the base station may be an explicit indication that the measurement result reported by the UE needs to reflect the measurement result that the small cell is in the open state or the measurement result that the small cell is in the closed state. An IE may be newly defined, which is used to indicate measurement characteristics corresponding to the reported measurement result, and may be added to the existing higher layer signaling for measurement object configuration or measurement report configuration, for example, the reportConfigToAddModList, or may be added to the existing configuration signaling for the serving cell, for example, the radioresourceconfigdedicatedsequenced or radioResourceConfigCommonSCell. It may be indicated by 1 bit, where 0 indicates that the UE is assumed to reflect the channel quality when the small cell is turned on, and 1 indicates that the UE is assumed to reflect the channel quality when the small cell is turned off. If the indication information is not available, it can be considered as being in accordance with the existing assumption. Another indication may be "0" to indicate that the UE assumes the existing UE assumption, and "1" to indicate that the UE assumes the channel quality when the small cell is turned on. The indication information may also be 2 bits, for example, "0" indicates that the UE is assumed to reflect the channel quality when the small cell is turned on according to the existing UE assumption, "1" indicates that the UE is assumed to reflect the channel quality when the small cell is turned on, and "2" indicates that the UE is assumed to reflect the channel quality when the small cell is turned off.

In step 1101 of this embodiment, the switching mechanism indication information of the small cell may also be directly used as measurement assumption information, which is used to implicitly indicate that the measurement result reported by the UE needs to reflect the measurement result that the small cell is in the on or off state. The switching mechanism indication information of the small cell is the existing indication information, and is not necessarily issued in the measurement process, and the measurement characteristics corresponding to different switching mechanism indication information may be predefined in the standard. In the measurement process, the base station implicitly informs the UE of the measurement characteristics of the measurement result to be reported through the sent switching mechanism indication information. Specifically, if the switching mechanism indication information sent by the base station is information that the small cell starts the switching function, the UE may be implicitly indicated that the measurement result needs to reflect the measurement result that the small cell is in the on state. If the switching mechanism indication information sent by the base station is information that the small cell does not start the switching function, the UE corresponding to the measurement result can be implicitly indicated to assume the prior art. In this way, only the existing information needs to be borrowed as the measurement hypothesis information, and no additional bandwidth resource needs to be consumed to transmit the measurement hypothesis information.

In step 1102, the base station receives information indicating channel quality sent by the user equipment. Wherein the channel quality information reported by the UE is a measurement result reflecting measurement characteristics indicated by the measurement hypothesis information.

Example 7

When the base station configures the UE with the result based on the first measurement subframe set or the report result is based on the result of the first measurement subframe set, the base station may actively take measures to prevent the occurrence of the phenomenon when the base station determines that the UE may not obtain the configured measurement result for a long time. Specifically, the base station may actively switch the switching state of the small cell and maintain at least a set length of time. For example, when the base station configures the UE to perform measurement based on the first measurement subframe set, the first measurement subframe set is a subframe in which the small cell is in an on state. When the small cell is in the closed state for N milliseconds continuously, the small cell should be switched to the open state and kept for at least M milliseconds, so as to ensure the measurement accuracy of the UE. Where N and M may be preset, or may be set by the base station according to the measurement capability of the UE. The base station side can count N by means of a timer (timer).

Another implementation manner of this embodiment is that when the UE determines that the measurement report cannot be generated according to the existing cell state and an accurate measurement result cannot be obtained, it may actively initiate a request to the base station to increase the measurement density. The request may be carried by a physical layer, or MAC layer or RRC layer signaling. After receiving the corresponding request, the base station can switch the switching state of the small cell and maintain at least the set time length.

The above is the specific implementation of the signal measuring and reporting method in the present application. The application also provides user equipment and a base station, which can be used for implementing the signal measurement and reporting method.

Specifically, corresponding to embodiment 1, the user equipment provided by the present application includes an information receiving unit, a measuring unit, and a reporting unit. The information receiving unit is used for receiving measurement subframe set indication information sent by a base station; the measurement unit is used for carrying out signal measurement on one or two subframe sets indicated by the measurement subframe set indication information and sending a measurement result corresponding to each subframe set indicated by the measurement subframe set information to the reporting unit; a reporting unit, configured to report the measurement result corresponding to each subframe set sent by the measurement unit to the base station respectively; and the small cell switch states of all subframes in the same subframe set indicated by the reported subframe set indication information are the same.

Corresponding to embodiment 2, the user equipment provided by the present application includes an information receiving unit, a measuring unit, and a reporting unit. The information receiving unit is used for receiving reported subframe set information which is sent by a base station and used for indicating one or two subframe sets; the measurement unit is used for measuring signals and sending the measurement result of each subframe set indicated by the reported subframe set information to the reporting unit; a reporting unit, configured to report the measurement result corresponding to each subframe set sent by the measurement unit to the base station respectively; and the small cell switch states of all the subframes in the same subframe set indicated by the measurement subframe set information are the same.

Corresponding to embodiment 3, the user equipment provided by the present application includes an information receiving unit, a measuring unit, and a reporting unit. The information receiving unit is used for receiving measurement hypothesis information which is sent by the base station and used for indicating measurement characteristics; the measurement unit is used for sending a measurement result reflecting the measurement characteristics indicated by the measurement hypothesis information to the reporting unit; the measurement characteristic is a measurement result characteristic of the small cell in an open or closed state; and the reporting unit is used for sending the measurement result sent by the measurement unit to the base station.

Corresponding to embodiment 4, the base station provided by the present application includes an information transmitting unit and a measurement result receiving unit. The device comprises an information sending unit and a measurement unit, wherein the information sending unit is used for sending measurement subframe set indication information to User Equipment (UE), and the measurement subframe set indication information is used for indicating the UE to carry out signal measurement in one or two subframe sets indicated by the measurement subframe set indication information; a measurement result receiving unit, configured to receive a signal measurement result fed back by the UE and corresponding to each subframe set indicated by the measurement subframe set indication information; and the small cell switching states of the subframes in the same subframe set indicated by the measurement subframe set indication information are the same.

Corresponding to embodiment 5, the base station provided by the present application includes an information transmitting unit and a measurement result receiving unit. The information sending unit is configured to send reporting subframe set indication information to the UE, where the reporting subframe set indication information is used to indicate one or two subframe sets on which measurement results reported by the UE are based. And the measurement result receiving unit is used for receiving the signal measurement results fed back by the UE and respectively corresponding to each subframe set indicated by the reported subframe set indication information. And the small cell switch states of all the subframes in the same subframe set indicated by the measurement subframe set information are the same.

Corresponding to embodiment 6, the base station provided by the present application includes an information transmitting unit and a measurement result receiving unit. The information sending unit is used for sending measurement hypothesis information used for indicating measurement characteristics to User Equipment (UE); here, the measurement characteristic is a measurement result characteristic in which the small cell is in an open or closed state. And the measurement result receiving unit is used for receiving the signal measurement result reflecting the measurement characteristics fed back by the UE.

Through the processing of the application, the UE can distinguish the open state or the close state of the small cell when the signal measurement or the measurement result is reported, and the measurement results of the small cell in different states are prevented from being combined, so that the accuracy of the measurement and the report result is improved, and the network efficiency is further improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A signal measurement method, comprising:

2. The method of claim 1, wherein when the measurement subframe set indication information indicates one subframe set, the measurement subframe set indication information is: the method includes the steps that a measurement subframe set is explicitly indicated to be subframe set indication information of a small cell in an on or off state, or indication information of measurement based on a discovery signal DRS, or indication information of measurement based on an existing reference signal, or indication information of a small cell enabling a switch function is used for implicitly indicating the measurement subframe set to be a subframe set of the small cell in the on or off state according to predefined.

3. The method of claim 2, wherein when only the UE is configured to perform measurement based on the DRS and no measurement based on an existing reference signal is configured to perform measurement, the indication information for performing measurement based on the DRS is used to implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an on state;

4. The method of claim 1, wherein when the measurement subframe set indication information indicates two subframe sets, the measurement subframe set indication information is:

5. The method of claim 4, wherein when the UE is configured to perform measurement based on the existing reference signals and DRS, the indication information for performing measurement based on DRS is used to implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an off state, and the indication information for performing measurement based on the existing reference signals is used to implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an on state.

6. The method according to any of claims 1 to 5, wherein the UE performing signal measurement in one or two subframe sets indicated by the measurement subframe indication information comprises:

7. The method according to any one of claims 1 to 5, wherein the reporting, by the UE, the measurement result corresponding to each subframe set indicated by the measurement subframe set information to the base station comprises: the UE combines a plurality of measurement results in the same subframe set to generate a corresponding measurement report, and reports the measurement report of each subframe set to the base station; or the UE generates a measurement report corresponding to each subframe set according to the single measurement result in each subframe set and reports the measurement report to the base station.

8. The method according to claim 1, 2 or 3, wherein when the measurement subframe set indication information indicates one subframe set, the UE sends a request for increasing measurement density to the base station if the UE determines that the measurement report of the one subframe set cannot be generated according to the current cell state.

9. A method for reporting signal measurement results is characterized by comprising the following steps:

10. The method of claim 9, wherein when the reporting subframe set indicator indicates one subframe set, the reporting subframe set indicator is: the method comprises the steps of explicitly indicating subframe set indication information of a small cell in an open or closed state, or indicating information for reporting a measurement result based on a discovery signal DRS, or indicating information for reporting a measurement result based on an existing reference signal.

11. The method of claim 10, wherein when only the UE is configured to perform measurement based on the DRS and no measurement based on an existing reference signal is configured to perform measurement, the indication information reported based on the DRS is used to implicitly indicate that a subframe set corresponding to a reported measurement result is a subframe set in which the small cell is in an open state;

12. The method of claim 9, wherein when the reporting subframe set indicator indicates two subframe sets, the reporting subframe set indicator is:

13. The method of claim 12, wherein when the UE is configured to perform measurement based on the existing reference signal and DRS, the indication information for reporting the measurement result based on the DRS is used to implicitly indicate that a subframe set corresponding to the reported measurement result is a subframe set in which the small cell is in an off state, and the indication information for reporting the measurement result based on the existing reference signal is used to implicitly indicate that a subframe set corresponding to the reported measurement result is a subframe set in which the small cell is in an on state.

14. The method according to any of claims 9 to 13, wherein the reporting, by the UE, the measurement result of each subframe set to the base station comprises: the UE combines a plurality of measurement results in the same subframe set to generate a corresponding measurement report, and reports the measurement report of each subframe set to the base station; or the UE generates a corresponding measurement report from a single measurement result in the same subframe set and reports the measurement report to the base station.

15. The method according to claim 9, 10 or 11, wherein when the reporting subframe set indication information indicates one subframe set, if the UE determines that the measurement report of the one subframe set cannot be generated according to the current cell state, the UE sends a request for increasing the measurement density to the base station.

16. A method for measuring and reporting signals, comprising:

17. The method of claim 16, wherein the measurement hypothesis information is: information explicitly indicating measurement characteristics of small cells in an on or off state.

18. The method of claim 17, wherein the measurement hypothesis information is carried in measurement configuration information or measurement report configuration information.

19. The method of claim 16, wherein indication information of enabling a switch function of a small cell is used as the measurement assumption information to implicitly indicate a measurement result characteristic when the small cell is in an on state.

20. The method according to any of claims 16 to 19, wherein when the measurement characteristic is a measurement characteristic when the small cell is in an open state, the UE reporting the measurement result reflecting the measurement characteristic indicated by the measurement assumption information to the base station comprises: processing a signal measurement result on a subframe of the small cell in an open state, generating the measurement report and reporting the measurement report to the base station; or equivalently converting the signal measurement result of the sub-frame of the small cell in the closed state into the measurement result of the small cell in the open state, generating the measurement report according to the converted measurement result, and reporting the measurement report to the base station; or equivalently converting the signal measurement result on the subframe of the small cell in the closed state into the measurement result of the small cell in the open state, combining the converted measurement result with the measurement result on the subframe of the small cell in the open state, generating the measurement report, and reporting the measurement report to the base station;

21. A signal measurement method, comprising:

22. The method of claim 21, wherein when the measurement subframe set indication information indicates one subframe set, the measurement subframe set indication information is: the method includes the steps that a measurement subframe set is explicitly indicated to be subframe set indication information of a small cell in an on or off state, or indication information of measurement based on a discovery signal DRS, or indication information of measurement based on an existing reference signal, or indication information of a small cell enabling a switch function is used for implicitly indicating the measurement subframe set to be a subframe set of the small cell in the on or off state according to predefined.

23. The method of claim 22, wherein when only UEs are configured to perform measurement based on DRS and no measurement based on existing reference signals is configured, the indication information for performing measurement based on DRS is used to implicitly indicate that a measurement subframe set is a subframe set in which a small cell is in an on state;

24. The method of claim 21, wherein when the measurement subframe set indication information indicates two subframe sets, the measurement subframe set indication information is:

25. The method of claim 24, wherein when the UE is configured to perform measurement based on an existing reference signal and a DRS, the indication information for performing measurement based on the DRS is used to implicitly indicate that a measurement subframe set is a subframe set in which a small cell is in an off state, and the indication information for performing measurement based on the existing reference signal is used to implicitly indicate that the measurement subframe set is a subframe set in which the small cell is in an on state.

26. The method according to claim 21, 22 or 23, wherein when the measurement subframe set indication information indicates one subframe set, if the base station determines that the UE cannot obtain the measurement report of the one subframe set according to the cell status, or if the base station receives a request for increasing the measurement density sent by the UE, the base station switches the on/off status of the small cell and at least maintains the switch status for a set time length.

27. A method for reporting signal measurement results is characterized by comprising the following steps:

28. The method of claim 27, wherein when the reporting subframe set indicator indicates one subframe set, the reporting subframe set indicator is: indicating information of a subframe set indicating that the small cell is in an open or closed state, or indicating information for reporting a measurement result based on a discovery signal DRS, or indicating information for reporting a measurement result based on an existing reference signal.

29. The method of claim 28, wherein when only the UE is configured to perform measurement based on the DRS and no measurement based on an existing reference signal is configured to perform measurement, the indication information reported based on the DRS is used to implicitly indicate that a subframe set corresponding to a reported measurement result is a subframe set in which the small cell is in an open state;

30. The method of claim 27, wherein when the reporting subframe set indicator indicates two subframe sets, the measuring subframe set information is:

31. The method of claim 30, wherein when the UE is configured to perform measurement based on the existing reference signal and DRS, the indication information for reporting the measurement result based on the DRS is used to implicitly indicate that a subframe set corresponding to the reported measurement result is a subframe set in which the small cell is in an off state, and the indication information for reporting the measurement result based on the existing reference signal is used to implicitly indicate that a subframe set corresponding to the reported measurement result is a subframe set in which the small cell is in an on state.

32. The method according to claim 27, 28 or 29, wherein when the reporting subframe set indication information indicates one subframe set, if the base station determines that the UE cannot obtain the measurement report of the one subframe set according to the cell status, or if the base station receives a request for increasing the measurement density sent by the UE, the base station switches the on/off status of the small cell and at least maintains the set time length.

33. A method for measuring and reporting signals, comprising:

34. The method of claim 33, wherein the measurement hypothesis information is: information explicitly indicating measurement result characteristics for which the small cell is in an on or off state.

35. The method of claim 34, wherein the measurement hypothesis information is carried in measurement configuration information or measurement report configuration information.

36. The method of claim 33, wherein indication information that the small cell enables the switch function is used as the measurement assumption information to implicitly indicate a measurement result characteristic that the small cell is in an on or off state.

37. A user device, comprising: the device comprises an information receiving unit, a measuring unit and a reporting unit;

38. A user device, comprising: the device comprises an information receiving unit, a measuring unit and a reporting unit;

39. A user device, comprising: the device comprises an information receiving unit, a measuring unit and a reporting unit;

40. A base station, comprising: an information transmitting unit and a measurement result receiving unit;

41. A base station, comprising: an information transmitting unit and a measurement result receiving unit;

42. A base station, comprising: an information transmitting unit and a measurement result receiving unit;