WO2010130086A1

WO2010130086A1 - Configuration method of mobile terminal measuring cell, radio resources control device and terminal

Info

Publication number: WO2010130086A1
Application number: PCT/CN2009/071760
Authority: WO
Inventors: 朱莉; 高秀娟; 李铕; 王燚; 印翀; 陈庆勇
Original assignee: 华为技术有限公司
Priority date: 2009-05-12
Filing date: 2009-05-12
Publication date: 2010-11-18
Also published as: CN102077640A; CN102077640B

Abstract

A configuration method of mobile terminal measuring cell, a radio resources control device and terminal. The method involves the steps of: sending the system information or the radio resources control (RRC) messages, in which the system information or the radio resources control messages include the reference information for specific measurement of the under test sub-frame, for indicating the mobile terminal to select the sub-frame according to the reference information for specific measurement, and performing measurement to the neighbor cell. By sending the system information or the RRC messages including the reference information for specific measurement of the under test sub-frame, the neighbor cell configuration information can be understood accurately according to the reference information for specific measurement by the mobile terminal. For the different frequency measurement and the different system measurement, the distributed measuring gap can be fully utilized to perform measuring, it will be advantageous to the mobile terminal to determine the optional sub-frame for performing measurement to the neighbor cell according to the reference information for specific measurement, thus the measurement validity of the mobile terminal is improved, and a more effective measurement result is provided to the switch decision.

Description

Method for configuring mobile terminal to measure cell, radio resource control device and terminal

The present invention relates to the field of communications technologies, and in particular, to a method for configuring a mobile terminal to measure a cell, a radio resource control device, and a mobile terminal.

Background technique

In mobile communication systems, the measurement types of mobile terminals are: co-frequency measurement, inter-frequency measurement, and iso-system measurement. The same frequency measurement is a measurement performed by the mobile terminal on the downlink carrier frequency of the serving cell; the inter-frequency measurement is a measurement performed by the mobile terminal on the downlink carrier frequency of the neighbor cell different from the serving cell; the different system measurement is the mobile terminal in the neighbor cell and the serving cell Measurements performed on neighbor cells when different radio access technologies are employed.

The mobile terminal needs to perform neighbor cell measurement before performing cell handover, cell reselection, etc., to select a suitable neighbor cell as a candidate target cell for cell reselection or handover. The cell reselection or switching is performed by evaluating the measurement result of the neighbor cell, and selecting the most suitable cell from the candidate target cell as the target cell. In the measurement process, the radio resource control (RRC) unit controls the measurement, and the configuration information of the neighboring cell, such as the measurement type, is sent to the mobile terminal through the system information or the RRC message, and the mobile terminal is instructed to perform related measuring. The mobile terminal side saves and maintains the configuration information of the neighbor cell, and completes the corresponding measurement according to the information.

In the process of implementing the present invention, the inventors have found that the prior art has at least the following drawbacks: In the prior art, the same frequency band (SFN) subframe is used by the neighboring cell and the current serving cell by providing the mobile terminal with the neighboring cell. Allocating, or providing the mobile terminal with information that the neighboring cell is consistent with the uplink and downlink configuration of the current serving cell, allowing the mobile terminal to determine the available measurement subframe for measurement, but by using the Long Term Evolution (LTE) program The system information or the RRC message of the same frequency and inter-frequency is set to 2 bits, so that the measurement information provided to the user terminal is limited, which limits the measurement capability of the user terminal to a certain extent, resulting in the cell measurement accuracy of the mobile terminal. Not high, measurement performance is reduced. Summary of the invention

The embodiments of the present invention provide a method for configuring a mobile terminal to measure a cell, a radio resource control device, and a terminal, so as to improve cell measurement performance of the mobile terminal.

An embodiment of the present invention provides a method for configuring a mobile terminal to measure a cell, including: sending system information or a radio resource control message, where the system information or the radio resource control message includes specific measurement reference information of a subframe to be measured, to indicate The mobile terminal selects a subframe according to the specific measurement reference information, and performs measurement on the neighbor cell.

The embodiment of the invention further provides a method for measuring a cell, including:

Receiving system information or a radio resource control message, where the system information or the radio resource control message includes specific measurement reference information of the subframe to be measured;

The subframe is selected according to the indication of the specific measurement reference information, and the neighbor cell is measured. The embodiment of the invention further provides a radio resource control device, including:

a sending unit, configured to send system information or a radio resource control message, where the system information or the radio resource control message includes specific measurement reference information of the subframe to be measured, to instruct the mobile terminal to select a subframe according to the specific measurement reference information, The neighbor cell is measured.

The embodiment of the invention further provides a mobile terminal, including:

a receiving unit, configured to receive system information or a radio resource control message sent by the RRC device, where the system information or the RRC message includes specific measurement reference information of the subframe to be measured;

And a measuring unit, configured to select a subframe according to the indication of the specific measurement reference information, and measure the neighbor cell.

The foregoing embodiment enables the mobile terminal to accurately understand the configuration information of the neighbor cell according to the specific measurement reference information by transmitting the system information or the RRC message including the specific measurement reference information of the subframe to be measured. For the inter-frequency measurement and the different system measurement, the measurement gap can be fully utilized for measurement, which is beneficial for the mobile terminal to determine the neighboring cell according to the specific measurement reference information. The available sub-frames are measured, thereby improving the measurement performance and measurement accuracy of the mobile terminal to the cell. DRAWINGS

1 is a schematic diagram of a cell distribution in the prior art;

FIG. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. . All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the invention.

In the prior art, the neighboring cell is provided to the mobile terminal to use the same single frequency network (SFN) subframe allocation, or the neighboring cell is provided to the mobile terminal to be consistent with the current serving cell uplink and downlink configuration. The information allows the mobile terminal to select a measurement sub-frame for measurement. This method provides a multimedia broadcast multicast service single frequency network (MBSFN) by setting 2 bits in the same-frequency and inter-frequency system information or RRC message of LTE to provide neighboring cells of a certain frequency layer. Configuration and Time Division Duplexing (TDD) uplink and downlink configuration information. The configuration information of the neighbor cell corresponding to the different values of the 2 bits is as shown in Table 1:

Table 1

2-bit value neighbor cell configuration information

00 not all neighbor cells have the same MBSFN subframe allocation as the current serving cell;

All neighbor cells have the same TDD uplink and downlink configuration as the serving cell.

10 All neighbor cells have the same MBSFN subframe as the current serving cell Allocation or a subset of the serving cell MBSFN subframe allocation;

01 MBSFN subframes do not exist in all neighbor cells;

11 There is a neighbor cell that is inconsistent with the TDD uplink and downlink configuration of the serving cell. When the value of the 2-bit used to provide neighbor cell configuration information is "01", the measurement of the neighbor cell by the mobile terminal may select all downlink subframes to perform unicast. Measurement; When the value of the 2-bit used to provide the neighbor cell configuration information is "10", the mobile terminal may select the downlink subframe of the non-SFN transmission of the monthly service cell to perform unicast measurement.

As shown in FIG. 1, it is assumed that the cell, the cell B, the cell C, and the cell D are the same SFN area, and the cell E, the cell F, and the cell G are unicast cells, and the cell E and the unicast cell G and the cell A in the SFN area, Cell B is adjacent.

If the TDD uplink and downlink configurations of all the cells are consistent, if the mobile terminal in the cell E is to perform the handover measurement to the cell B, the subframe with the sequence number 0 and the subframe with the sequence number 5 are fixed downlink unicasts. Therefore, the mobile terminal in the cell E can measure the non-SFN downlink subframe of the cell B, and whether other subframes are measurable, and the mobile terminal needs to be determined according to the configuration of the SFN. If the mobile terminal in cell E is to perform handover measurement to cell G, the mobile terminal may select more measurement subframes than for cell B, i.e., the mobile terminal may measure all downlink subframes of cell G. In this way, when the neighbor cell configuration information is configured with "00", the measurement of the cell G by the mobile terminal is limited. The selected measurement subframe has only the subframe with sequence number 0 and the subframe with sequence number 5, resulting in reduced measurement accuracy.

In the case that other cells except cell G have the same TDD uplink and downlink configuration, if the mobile terminal in cell E is to perform handover measurement to cell B, the mobile terminal may measure the non-SFN downlink subframe of B; The cell B is also a unicast cell, and then the mobile terminal can select all downlink subframes of the cell B for measurement. If the mobile terminal in the cell E is to perform handover measurement to the cell G, since the TDD configuration of the cell G is inconsistent with the serving cell, the measurement subframe selectable by the mobile terminal is only a subframe with sequence number 0 and a subframe with sequence number 5. In this way, neighbor cell configuration information When configured as "11", the selection of the measurement subframe of the cell B by the mobile terminal may be limited.

The above is the case when the neighbor cell and the serving cell are in the same frequency layer. For different frequency layers, the 2 bits take the value of "00" and are the same frequency layer as above. When the value of the 2 bits is "11", all neighbor cells of the frequency layer may have the same DL/UL configuration, but different from the serving cell. In this case, the mobile terminal may actually select all downlink unicast subframes. Measurements; there may also be different DL/UL configurations for neighbor cells of the frequency layer; there may be a case where the mobile terminal can only measure the sub-frame number of 0 and the sequence number 5 when the value of 2 bits is "11". Subframe. For the RRC connected mobile terminal, since the measurement gap is 6ms and 1ms, it will be used for frequency hopping. The actual measurement gap is 5ms, so there is only one subframe actually measured by the mobile terminal.

Another method for configuring a mobile terminal to perform cell measurement is applied to a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, and an evolved type provided by a mobile terminal according to a system broadcast message or an RRC message. The frequency information of the UMTS Terrestrial Radio Access (E-UTRA) is related to the measurement and evaluation of the E-UTRA cell of the frequency layer.

With the above configuration method, it can be concluded that, for the case where the 2-bit values are "00" and "11", the mobile terminal indicates that the SFN-related information of each neighbor cell cannot be comprehensively understood by the information of the two bits, the mobile terminal Only the subframe with the sequence number 0 and the subframe with the sequence number 5 can be selected to perform the measurement, which may result in the measurement range of the measurement subframe that the mobile terminal can select for the neighbor cell is limited, and the measurement accuracy is reduced. Therefore, based on the above analysis of the scanning process in the prior art, the embodiment of the present invention proposes a method for configuring a mobile terminal to measure a cell.

Embodiment 1

The method for configuring a mobile terminal to measure a cell according to the first embodiment of the present invention may include: transmitting system information or an RRC message, where the system information or the RRC message includes specific measurement reference information of a subframe to be measured, to indicate that the mobile terminal according to the mobile terminal The specific measurement reference information selects a subframe, and measures the neighbor cell.

In this embodiment, the RRC unit sends specific measurement reference information including the subframe to be measured. The system information or the RRC message enables the mobile terminal to accurately understand the configuration information of the neighbor cell according to the specific measurement reference information. For the inter-frequency measurement and the different-system measurement, the measured measurement gap can be fully utilized for measurement, which is beneficial for the mobile terminal to determine an available subframe for measuring the neighbor cell according to the specific measurement reference information, thereby improving the movement. The effectiveness of terminal measurements provides more efficient measurements for handover decisions.

The specific measurement reference information of the subframe to be measured may include uplink and downlink configuration information of a frequency layer to be measured. For the intra-frequency measurement and the inter-frequency measurement, the specific measurement reference information of the to-be-measured subframe may further include cell information of all neighbor cells of the to-be-measured frequency layer, to indicate that the mobile terminal further selects according to the cell information. Subframe.

The specific measurement reference information of the subframe to be measured may further include measurement indication information of the non-unicast subframe to instruct the mobile terminal to select a non-unicast subframe that is available for measurement, thereby further improving the measurement performance of the mobile terminal.

Correspondingly, the method for measuring a cell provided by the embodiment of the present invention may include:

The subframe is selected according to the indication of the specific measurement reference information, and the neighbor cell is measured. The specific measurement reference information of the to-be-measured subframe may include uplink and downlink configuration information of a frequency layer to be measured.

Further, the specific measurement reference information of the subframe to be measured may further include cell information of all neighbor cells of the frequency layer to be measured; at this time, selecting the subframe according to the indication of the specific measurement reference information may include: further The subframe is selected according to the indication of the cell information.

Further, the specific measurement reference information of the subframe to be measured may further include measurement indication information of the non-unicast subframe; at this time, selecting the subframe according to the indication of the specific measurement reference information may include: further according to the measurement The indication of the indication information selects a non-unicast subframe that is available for measurement.

Or the specific measurement reference information of the to-be-measured subframe may include only the measurement indication information of the non-unicast subframe. In this case, selecting the subframe according to the indication of the specific measurement reference information may include: The indication of the measurement indication information selects a non-unicast subframe that is available for measurement.

In this embodiment, the mobile terminal receives the system information or the RRC message of the specific measurement reference information that includes the subframe to be measured, so as to accurately understand the configuration information of the neighboring cell according to the specific measurement reference information. For the inter-frequency measurement and the inter-system measurement, the mobile terminal can fully utilize the allocated measurement gap to perform measurement, which is beneficial to determine an available subframe for measuring the neighbor cell according to the specific measurement reference information, thereby improving the mobility. The measurement performance and measurement accuracy of the terminal to the cell.

Embodiment 2

For the same-frequency or inter-frequency measurement of the TD-LTE system, the configuration information of the neighbor cell needs to be provided for each neighbor cell in the system information and the RRC message. The configuration information of the neighbor cell may include the MBSFN configuration of the neighbor cell and the TDD uplink and downlink configuration information. The MBSFN configuration and the TDD uplink and downlink configuration information of the neighboring cell are provided to the mobile terminal through a 2-bit bearer, as shown in Table 2.

Table 2

Table 2 provides configuration information for all neighbor cells of a frequency layer. When it is necessary to provide configuration information of neighbor cells of n frequency layers, it is necessary to provide n pieces of 2-bit information as shown in Table 2.

When the value of the above 2 bits is "11", you need to increase the uplink and downlink configuration information of the frequency layer: {saO, sal, sa2, sa3, sa4, sa5, sa6, other} ₀ sa0 to sa6 correspond to the uplink and downlink respectively The type of configuration, at this time, it is considered that all neighbor cells do not have MBSFN transmission subframes. Uplink and downlink configuration information It can be expressed by adding 3 bits in the system broadcast message or RRC message, as shown in Table 3 ₍ Table 3

The "other" indicates other situations, and the cell information of the neighboring cell needs to be further provided, and each neighbor cell is described, such as a neighbor cell with the same MBSFN allocation, or a unicast neighbor cell, so that the mobile terminal can The cell information determines the measurement subframe. Similarly, when the above 2-bit value is "00", the cell information is further provided.

In this case, the system information, the RRC message, and the neighbor configuration information maintained by the UE need to add corresponding cell information to each neighbor cell in the frequency layer neighbor cell list. The cell information is implemented by 2 bits, as shown in Table 4.

Table 4

If there are n neighbor cells, it is necessary to add nx2 bits to provide cell information of n neighbor cells. In this embodiment, the RRC unit provides the uplink and downlink configuration information of the frequency layer to be measured for the mobile terminal, so that the mobile terminal can further obtain the specific uplink and downlink configuration information of each neighboring cell that is different from the uplink and downlink configuration of the serving cell, and thus, according to the upper and lower The row configuration information selection subframe is measured in the neighboring cell, which improves the accuracy of the measurement of the mobile terminal. Further, the RRC unit further provides cell information of each neighbor cell different from the MBSFN configuration of the serving cell, so that the mobile terminal can further measure the neighbor cell according to the cell information selection subframe, thereby improving the measurement performance of the mobile terminal to the cell. With measurement accuracy.

Embodiment 3

In the system information or RRC message of the E-UTRA measurement in the TD-SCDMA system, the uplink and downlink configuration information of the E-UTRA is added for each frequency layer in the E-UTRA frequency list: for example, {sa0 _: sal, sa2, sa3 , sa4, sa5, sa6, other}. This information indicates the DL/UL subframe configuration of TD-LTE, and saO~sa6 correspond to configurations 0 to 6, respectively. The uplink and downlink configuration information of each frequency layer of the E-UTRA can be implemented by adding 3 bits in the system information or the RRC message. For details, see Table 3 in the foregoing Embodiment 2. If there are n frequency layers, it needs to be increased by ηχ3 bits.

Sa0 to sa6 are TD-LTE configurations for a certain frequency layer indicated in the system information or the RRC message, that is, an uplink and downlink configuration of the E-UTRA, and indicate that the DL UL subframe configuration of all neighbor cells on the frequency layer is The same, and the subframe is used for the case of a unicast subframe. In this case, the measurement of the TD-LTE by the mobile terminal in the TD-SCDMA can determine the subframe available for measurement according to the uplink and downlink configuration information of the E-UT A. The configuration of sa0 to sa6 is shown in Table 5.

Where D represents downlink, U represents uplink, and S represents a special time slot. As can be seen from Table 5, Only a subframe with a subframe number of 0 and a subframe with a subframe number of 5 are always downlink, and are not MBSFN, and other subframes are determined according to the configuration.

"other" For other cases where there is MBSFN transmission in the frequency layer, or DL/UL configuration in which the neighbor cells are inconsistent, if the information provided by the 3 bits is "other", the mobile terminal selects only the subframe with the subframe number 0. The measurement of TD-LTE is performed with a subframe having a subframe number of 5.

The mobile terminal can know the uplink and downlink configuration information of the TD-LTE of the frequency layer to be measured by receiving the RRC message or the system information, thereby knowing which downlink subframes are available for measurement. In this way, the mobile terminal can fully measure the measurement in a measurement gap, thereby improving the measurement accuracy and being suitable for the limited bandwidth in TD-LTE.

Of course, the mobile terminal can combine the measurement bandwidth information of the TD-LTE to determine whether each downlink subframe needs to be measured. For example, when the bandwidth is large, the measurement time can be reduced.

In this embodiment, the RRC unit adds relevant TD-LTE configuration indication information to the system information or the RRC message, so that the mobile terminal can use the relevant unicast subframe to perform measurement as much as possible, thereby improving the measurement of the cell by the mobile terminal. Performance and measurement accuracy.

Embodiment 4

If the first OFDM symbol in the MBSFN subframe is used for the transmission of the unicast control signal, the RSRP in the first OFDM symbol can be measured. Up to two OFDM symbols for MBSFN subframes can be used for unicast, and only the first OFDM can be used for RS P measurements. Therefore, the measurement indication information of the non-unicast subframe is added to the related system information or the RRC message, that is, whether there is a unicast OFDM symbol, to instruct the mobile terminal to measure the non-unicast subframes, thereby further increasing the measurement of the mobile terminal. Precision. The measurement indication information of the non-unicast subframe may be further added to the related system information or the RRC message on the basis of the second embodiment or the third embodiment. If there is one or 0 OFDM symbols for RSRP measurement, the system information or the RRC message further informs the mobile terminal of the measurement of the subframe and the number of OFDM symbols. The mobile terminal selects a subframe to be measured based on the obtained related information.

In this embodiment, the RRC unit adds a non-unicast subframe to the system information or the RRC message. The measurement indication information expands the range of measurement of the mobile terminal.

The radio resource control device provided by the embodiment of the present invention may include: a sending unit, configured to send system information or an RRC message, where the system information or the RRC message includes specific measurement reference information of the subframe to be measured, to indicate that the mobile terminal according to the The specific measurement reference information is selected to select a subframe, and the neighbor cell is measured. For specific measurement reference information of the subframe to be measured, refer to the above method embodiment.

In this embodiment, the RRC device sends the system information or the RRC message including the specific measurement reference information of the subframe to be measured by the sending unit, so that the mobile terminal can accurately understand the configuration information of the neighbor cell according to the specific measurement reference information. For the inter-frequency measurement and the different system measurement, the measured measurement gap can be fully utilized for measurement, and the mobile terminal can be used to determine the available sub-frames for measuring the neighbor cells, thereby improving the movement. The effectiveness of terminal measurements provides more efficient measurements for handover decisions.

FIG. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention. The mobile terminal includes: a receiving unit 11 and a measuring unit 12. The receiving unit 11 is configured to receive system information or an RRC message sent by the RRC device, where the system information or the RRC message includes specific measurement reference information of the subframe to be measured. The measuring unit 12 is configured to select a subframe according to the indication of the specific measurement reference information, and perform measurement on the neighboring cell. For specific measurement reference information of the subframe to be measured, refer to the foregoing method embodiment, which may include uplink and downlink configuration information of the frequency layer to be measured. The measuring unit 12 can also be used to further select a subframe based on the cell information. The specific measurement reference information of the subframe to be measured further includes cell information of all neighbor cells of the frequency layer to be measured; the measuring unit 12 is further configured to further select a subframe according to the cell information. When the specific measurement reference information of the subframe to be measured further includes the measurement indication information of the non-unicast subframe, the measurement unit 12 is further configured to select the non-unicast subframe according to the measurement indication information of the non-unicast subframe.

In this embodiment, the mobile terminal can accurately learn the configuration information of the neighboring cell according to the specific measurement reference information by receiving the system information or the RRC message that is sent by the RRC device and includes the specific measurement reference information of the subframe to be measured. In this way, for the inter-frequency measurement and the different system measurement, the mobile terminal can fully utilize the allocated measurement gap for measurement, which is beneficial to the specific measurement reference information. The available subframes are used for measuring the neighbor cells, thereby improving the measurement performance and measurement accuracy of the mobile terminal to the cell.

The foregoing method and device embodiment improve the cell measurement performance of the mobile terminal to the TD-LTE system by adding uplink and downlink configuration information in the system information or the RRC message, and also improve the accuracy of the different system measurement. At the same time, the user experience of the edge users is improved, the reliability of the cell reselection evaluation process of the same frequency, different frequency, and different systems, and the accuracy of the handover measurement, thereby providing a reliable basis for the handover decision.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The steps of the foregoing method embodiments are included; and the foregoing storage medium includes: OM. RAM, a magnetic disk or an optical disk, and the like, which can store program codes.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A method for configuring a mobile terminal to measure a cell, comprising:

Sending system information or a radio resource control message, where the system information or the radio resource control message includes specific measurement reference information of the subframe to be measured, to instruct the mobile terminal to select a subframe according to the specific measurement reference information, and measure the neighbor cell. .

The method for configuring a mobile terminal to measure a cell according to claim 1, wherein the specific measurement reference information of the to-be-measured subframe includes uplink and downlink configuration information of a frequency layer to be measured.

The method for configuring a mobile terminal to measure a cell according to claim 2, wherein the specific measurement reference information of the subframe to be measured further includes cell information of all neighbor cells of the frequency layer to be measured, to indicate The mobile terminal further selects a subframe according to the cell information.

The method for configuring a mobile terminal to measure a cell according to claim 2 or 3, wherein the specific measurement reference information of the subframe to be measured further includes measurement indication information of a non-unicast subframe, to indicate the The mobile terminal selects a non-unicast subframe that can be used for measurement.

The method for configuring a mobile terminal to measure a cell according to claim 1, wherein the specific measurement reference information of the subframe to be measured includes measurement indication information of a non-unicast subframe, to indicate that the mobile terminal selects Non-unicast subframes that can be used for measurements.

A method for measuring a cell, comprising:

The subframe is selected according to the indication of the specific measurement reference information, and the neighbor cell is measured.

The method for measuring a cell according to claim 6, wherein the specific measurement reference information of the subframe to be measured further includes cell information of all neighbor cells of the frequency layer to be measured;

Selecting a subframe according to the indication of the specific measurement reference information includes: further selecting a subframe according to the indication of the cell information.

The method for measuring a cell according to claim 6, wherein the specific measurement reference information of the subframe to be measured further includes measurement indication information of a non-unicast subframe;

Selecting the subframe according to the indication of the specific measurement reference information includes: selecting a non-unicast subframe that is available for measurement according to the indication of the measurement indication information.

The method for measuring a cell according to claim 6, wherein the specific measurement reference information of the subframe to be measured includes measurement indication information of a non-unicast subframe;

Selecting a subframe according to the indication of the specific measurement reference information includes: selecting a non-unicast subframe usable for measurement according to the indication of the measurement indication information.

10. A radio resource control device, comprising:

The radio resource control device according to claim 10, wherein the specific measurement reference information of the subframe to be measured sent by the sending unit includes uplink and downlink configuration information of a frequency layer to be measured; or Cell information of all neighbor cells of the layer, to indicate that the mobile terminal further selects a subframe according to the cell information; or further includes measurement indication information of the non-unicast subframe, to instruct the mobile terminal to select a non-measureable Unicast subframe.

12. A mobile terminal, comprising:

The mobile terminal according to claim 12, wherein the specific measurement reference information of the subframe to be measured received by the receiving unit includes uplink and downlink configuration information of a frequency layer to be measured.

The mobile terminal according to claim 13, wherein the specific measurement reference information of the subframe to be measured received by the receiving unit further includes cell information of all neighbor cells of the frequency layer to be measured; And configured to further select a subframe according to the cell information.

The mobile terminal according to claim 13, wherein the specific measurement reference information of the subframe to be measured received by the receiving unit further includes measurement indication information of a non-unicast subframe; the measuring unit is further used for A non-unicast subframe that is available for measurement is selected according to the measurement indication information of the non-unicast subframe.