MBSFN subframe processing method and device, and base station and user terminal

Abstract

This disclosure provides an MBSFN subframe processing method and apparatus, as well as a base station and a user terminal, wherein the base station transmits an MBSFN reference signal (RS) within the zero-fill region of the MBSFN subframe, thereby effectively utilizing time-frequency resources, which can be more easily used for channel estimation when received by the UE.

Description

[Technical field]

[0001] The present disclosure relates to, but is not limited to, mobile communication technologies, and in particular to MBSFN subframe processing methods and apparatus, as well as base stations and user terminals. [Background technology]

[0002] Currently, a subset of downlink subframes within a radio frame on subcarriers carrying a Physical Downlink Shared Channel (PDSCH) transmission can be configured by higher layers as Multicast Broadcast Single Frequency Network (MBSFN) subframes.

[0003] Each MBSFN subframe is divided into an MBSFN region and a non-MBSFN region, where the non-MBSFN region occupies the first one or two Orthogonal Frequency Division Multiplexing (OFDM) symbols of the MBSFN subframe, the length of the cyclic prefix (CP) used in the non-MBSFN region is the same as that of subframe 0, and the MBSFN region is defined as the OFDM symbols not used in the non-MBSFN region.

[0004] If subframe 0 uses the normal CP, then the non-MBSFN regions in the MBSFN subframe use the normal CP, and the MBSFN regions use the extended CP, and special processing must be done to ensure that the subframe timing relationships are aligned.

[0005] If the non-MBSFN region occupies one OFDM symbol, zero-fill is performed between OFDM symbol 0 and OFDM symbol 1, as shown by the diagonal shading in Figure 1, and if the non-MBSFN region occupies two OFDM symbols, zero-fill is performed between OFDM symbol 1 and OFDM symbol 2, as shown by the diagonal shading in Figure 2.

[0006] 1 and 2, the diagonal lattice shading indicates empty areas, the diagonal stripe shading indicates cell pilot frequencies, and the vertical stripe shading indicates MBSFN pilot frequencies. In this document, the time-frequency positions where zero-filling is performed are called zero-filled regions of the MBSFN subframe.

[0007] Clearly, these zero-filled time-frequency locations are not being utilized efficiently. Summary of the Invention [Problem to be solved by the invention]

[0008] The present disclosure provides an MBSFN subframe processing method and apparatus, as well as a base station and a user terminal, which can effectively utilize time-frequency resources. [Means for solving the problem]

[0009] The present disclosure provides a method for processing an MBSFN subframe in a multicast single frequency network, including the steps of: a base station including an MBSFN reference signal RS in a zero-fill area of ​​the MBSFN subframe; and the base station transmitting the MBSFN subframe including the MBSFN reference signal.

[0010] In one illustrative example, the step of the base station including the MBSFN reference signal RS in a zero-fill region of the MBSFN subframe includes placing the MBSFN reference signal RS in the zero-fill region of the MBSFN subframe in an order from low frequency to high frequency.

[0011] In one illustrative example, the step of the base station including an MBSFN reference signal RS in a zero-fill region of an MBSFN subframe includes the MBSFN reference signal RS consisting of two perfectly matched sequences, one located at an even number of subcarrier positions in the zero-fill region of the MBSFN subframe and one located at an odd number of subcarrier positions in the zero-fill region of the MBSFN subframe.

[0012] In one illustrative example, the method further includes the base station notifying a mobile terminal via a system message, the identification information being included therein, of whether to include an MBSFN reference signal in the MBSFN subframe.

[0013] In one illustrative example, the system message is a System Information Block-13 SIB13 message.

[0014] In one illustrative example, the step of informing a mobile terminal via a system message of whether to include an MBSFN reference signal in the MBSFN subframe includes a step of using one bit as the identification information in a late non-critical extension field of the SIB13 message to indicate whether to transmit an MBSFN reference signal RS in a zero-fill area of ​​the MBSFN subframe.

[0015] The present disclosure further provides a computer-readable storage medium, storing computer-executable instructions for performing the method for processing an MBSFN subframe as recited in any one of the above claims.

[0016] The present disclosure also provides an apparatus for implementing MBSFN subframe processing, comprising a processor and a memory storing a computer program executable by the processor, the computer program being used to execute steps of any of the above-described MBSFN subframe processing methods.

[0017] The present disclosure further provides a base station, including an apparatus for implementing any of the above MBSFN subframe processing.

[0018] The present disclosure provides another method for processing MBSFN subframes of a multicast single frequency network, A user equipment (UE) determines that an MBSFN reference signal is included in a zero-fill area of ​​an MBSFN subframe; The user terminal determines a time position of a zero-fill region of the MBSFN subframe, and acquires an MBSFN reference signal within the zero-fill region of the MBSFN subframe.

[0019] In one illustrative example, the step of the UE determining that an MBSFN reference signal is included in a zero-fill area of ​​an MBSFN subframe includes a step of the UE reading identification information in a system message from a base station, and determining whether the MBSFN reference signal is included in a zero-fill area of ​​the MBSFN subframe based on the identification information.

[0020] In one illustrative example, the system message is a SIB13 message, and the step of determining whether an MBSFN reference signal is included in a zero-fill area of ​​an MBSFN subframe based on identification information includes a step of determining whether to transmit the MBSFN reference signal RS in a zero-fill area of ​​the MBSFN subframe based on the identification information in a late non-critical extension field of the SIB13 message.

[0021] In one illustrative example, the step of the UE determining that an MBSFN reference signal is included in a zero-fill region of an MBSFN subframe includes the UE performing blind demodulation of the zero-fill region of the MBSFN subframe and determining whether the MBSFN reference signal is included in the zero-fill region of the MBSFN subframe based on acquired signal characteristics.

[0022] In one illustrative example, the signal characteristics include an average power for receiving signals within zero-fill regions of the MBSFN subframe and a signal-to-noise ratio (SINR) for receiving signals within zero-fill regions of the MBSFN subframe; The step of determining whether an MBSFN reference signal is included in a zero-fill area of ​​the MBSFN subframe based on the acquired signal characteristics includes a step of determining that the MBSFN reference signal is included in the zero-fill area of ​​the MBSFN subframe if the acquired average power for receiving a signal in the zero-fill area of ​​the MBSFN subframe is greater than a predetermined noise and interference threshold and / or the SINR for receiving a signal in the zero-fill area of ​​the MBSFN subframe is greater than a predetermined signal-to-noise ratio threshold.

[0023] The present disclosure further provides a computer-readable storage medium having stored thereon computer-executable instructions for performing another MBSFN subframe processing method as set forth above.

[0024] The present disclosure also provides an apparatus for implementing MBSFN subframe processing, comprising a processor and a memory storing a computer program executable by the processor, the computer program being used to perform steps of another MBSFN subframe processing method as described above.

[0025] The present disclosure further provides a user equipment UE, including an apparatus for implementing any of the alternative MBSFN subframe processing methods set forth in the claims. Effect of the Invention

[0026] In the present disclosure, a base station transmits an MBSFN reference signal (RS) in the zero-fill region of an MBSFN subframe to effectively utilize time-frequency resources, which can be more easily utilized for channel estimation when received by a UE.

[0027] Additional features and advantages of the invention will be set forth in the following description, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention may be realized and obtained by the structure particularly pointed out in the written description, claims and drawings. [Brief description of the drawings]

[0028] The drawings are used to provide a further understanding of the technical solution of the present disclosure, constitute a part of the specification, and are used to interpret the technical solution of the present disclosure together with the embodiments of the present disclosure, and are not intended to constitute limitations on the technical solution of the present disclosure. [Figure 1] FIG. 2 is a diagram showing a non-MBSFN area occupying one symbol and using a normal CP in the related art. [Diagram 2] FIG. 2 is a diagram showing a non-MBSFN area occupying two symbols and using an extended CP in the related art. [Diagram 3] 1 is a flow diagram of a method for processing MBSFN subframes in accordance with the present disclosure. [Figure 4] FIG. 2 is a diagram illustrating an example of an MBSFN reference signal format according to the present disclosure. [Diagram 5] FIG. 2 illustrates another example of an MBSFN reference signal format according to the present disclosure. [Figure 6] 13 illustrates a diagram showing notification of whether an MBSFN subframe includes an MBSFN reference signal via a system message in accordance with the present disclosure. [Figure 7] 4 is a flow diagram of another MBSFN subframe processing method according to the present disclosure. [Figure 8] FIG. 2 is a diagram showing the configuration of an MBSFN subframe in a first embodiment for implementing MBSFN subframe processing according to the present disclosure. [Figure 9] FIG. 2 is a flow diagram of a first embodiment of a method for processing an MBSFN subframe in accordance with the present disclosure. [Figure 10] FIG. 4 is a flow diagram of a second embodiment of a method for processing an MBSFN subframe in accordance with the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] In a typical configuration of the present disclosure, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0030] Memory may include forms of non-persistent memory in a computer readable medium, such as random access memory (RAM) and / or non-volatile memory, such as read only memory (ROM) or flash memory (flash RAM). Memory is one example of a computer readable medium.

[0031] Computer-readable media include permanent and non-permanent, removable and non-removable media and may implement any method or technology for storing information. Information may be computer-readable instructions, data structures, program modules or other data.

[0032] Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other memory technology, read only compact disc read only memory (CD-ROM), digital versatile disk (DVD) or other magnetic cartridge tape, magnetic disk storage or other magnetic storage device or other non-transmission medium that can be used to store information that may be accessed by a computing device.

[0033] As defined herein, computer readable media does not include non-transitory computer readable media, such as modulated data signals or carriers.

[0034] In order to make the objectives, technical solutions and advantages of the present disclosure clearer and easier to understand, the following detailed description is based on the embodiments of the present disclosure in conjunction with the drawings. It should be noted that, unless there is any contradiction, the embodiments of the present disclosure and the features in the embodiments can be arbitrarily combined with each other.

[0035] FIG. 3 is a flow diagram of a method for processing an MBSFN subframe according to the present disclosure, as shown in FIG. 3, it includes at least the following:

[0036] In step 300, a base station includes an MBSFN reference signal (RS) in a zero-fill region of an MBSFN subframe.

[0037] In one illustrative example, step 300 may include placing the RSs in a zero-fill region of an MBSFN subframe in order from low frequency to high frequency, as shown in position R4 of FIG.

[0038] In one illustrative example, step 300 may include a step in which the RS consists of two perfectly matched sequences, one in which the RS is placed at an even number of subcarrier positions in the zero-fill region of the MBSFN subframe, as shown in position R4 of FIG. 5, and the other in which the RS is placed at an odd number of subcarrier positions in the zero-fill region of the MBSFN subframe, as shown in position R′4 of FIG. 5.

[0039] In this embodiment, by using all subcarriers of each RB for RS transmission and including the RS in all frequency domain positions of the zero-fill region of the MBSFN subframe, each subcarrier is utilized, making full and effective use of time-frequency resources, which can be more easily used for channel estimation when received by the UE.

[0040] In one illustrative example, the R4, R'4 sequence may be generated according to equation (1).

[0041]

number

[0042] The generation of the RS is not limited to the above method, and any random sequence that satisfies good randomness may be used.

[0043] In one illustrative example, to facilitate integration of channel estimation, the RS transmit power of the zero-fill region of an MBSFN subframe may be set to be equal to the RS transmit power of the multicast region of the MBSFN.

[0044] In step 301, the base station transmits an MBSFN subframe including an MBSFN reference signal.

[0045] Optionally, in one illustrative example, the method for processing an MBSFN subframe of the present disclosure further comprises: The method includes a step of the base station notifying the mobile terminal via a system message, the system message including the identification information, whether or not to include an MBSFN reference signal in the MBSFN subframe.

[0046] In one exemplary example, the system message may be an existing System Information Block-13 (SIB13) message. In one exemplary example, the step of informing the mobile terminal of whether to include an MBSFN reference signal in the MBSFN subframe via the system message includes: As shown in FIG. 6, a step may be included in which one bit is used as identification information in a late Non Critical Extension field of the SIB13 message to indicate whether or not to transmit an MBSFN RS in a zero-fill area of ​​an MBSFN subframe, for example, 0 indicating that an MBSFN RS is not transmitted and 1 indicating that an MBSFN RS is transmitted.

[0047] An embodiment of the present invention further provides a computer-readable storage medium, storing computer-executable instructions for performing any of the methods for processing an MBSFN subframe described in FIG. 3 above.

[0048] An embodiment of the present invention also provides an apparatus for implementing MBSFN subframe processing, comprising a processor and a memory storing a computer program executable by the processor, used to execute steps of the MBSFN subframe processing method described in any of the above figures shown in FIG.

[0049] The present disclosure further provides a base station, including an apparatus for implementing any of the MBSFN subframe processing described above.

[0050] FIG. 7 is a flow diagram of another MBSFN subframe processing method according to the present disclosure, as shown in FIG. 7, it includes at least the following:

[0051] In step 700, a user terminal determines that an MBSFN reference signal is included in a zero-fill region of an MBSFN subframe.

[0052] In one illustrative example, this step may include a step of a user equipment (UE) reading identification information in a system message from a base station, and determining whether an MBSFN reference signal is included in a zero-fill area of ​​the MBSFN subframe based on the identification information.

[0053] In one exemplary example, the system message may be an existing SIB13 message. In one exemplary example, determining whether the MBSFN reference signal is included in the zero-fill area of ​​the MBSFN subframe based on the identification information may include determining whether to transmit an MBSFN RS in the zero-fill area of ​​the MBSFN subframe based on the identification information, such as one bit in a late Non Critical Extension field of the SIB13 message, for example, indicating not to transmit an MBSFN RS when the identification information is 0, and indicating to transmit an MBSFN RS when the identification information is 1.

[0054] In one illustrative example, step 700 may include the UE performing blind demodulation of a zero-fill region of the MBSFN subframe and determining whether an MBSFN reference signal is included in the zero-fill region of the MBSFN subframe based on the obtained signal characteristics.

[0055] In one illustrative example, the signal characteristics may include, for example, an average power for receiving a signal within a zero-fill region of an MBSFN subframe and / or a signal-to-noise ratio (SINR) for receiving a signal within a zero-fill region of an MBSFN subframe.

[0056] In one illustrative example, determining whether an MBSFN reference signal is included in the zero-fill region of the MBSFN subframe based on the acquired signal characteristics includes: The method may include determining that an MBSFN reference signal is included in the zero-fill region of the MBSFN subframe if the average power for receiving a signal in the zero-fill region of the acquired MBSFN subframe is greater than a predetermined noise and interference threshold, or if the SINR for receiving a signal in the zero-fill region of the MBSFN subframe is greater than a predetermined signal-to-noise ratio threshold.

[0057] As an example, the UE can calculate the average received power RSRP (denoted as P0) of the signal transmitted in the zero-fill area of ​​the MBSFN subframe, or the SINR (denoted as SINR0) received in the zero-fill area of ​​the MBSFN subframe, and determine that the base station has performed RS transmission in the zero-fill area of ​​the MBSFN subframe if the calculated P0 is greater than a predetermined noise and interference threshold, or the calculated SINR0 is greater than a predetermined signal-to-noise ratio threshold.

[0058] In one illustrative example, prior to this step, The UE determines whether the accessed cell is a normal CP or an enhanced CP through a cell selection phase; determining the size of the non-control region by demodulating a PCFICH channel of the non-control region; The method may further include the UE receiving signals in an entire MBSFN subframe.

[0059] In step 701, a user terminal determines a time position of a zero-fill region of an MBSFN subframe, and acquires an MBSFN reference signal within the zero-fill region of the MBSFN subframe.

[0060] In one illustrative example, a UE only needs to start signal reception of an MBSFN subframe from the zero-fill region of the MBSFN subframe, and retrieve signals for RSs within the zero-fill region of the MBSFN subframe based on a time position.

[0061] In the present disclosure, when the UE determines that the base station has transmitted an RS in the zero-fill area of ​​the MBSFN subframe, the UE can obtain the RS to perform subsequent processing such as channel estimation, frequency bias estimation, etc., and jointly demodulate the MBSFN service in combination with the channel estimation and frequency bias obtained from the MBSFN RS.

[0062] For unicast services, the present disclosure transmits RSs in the zero-fill area of ​​the MBSFN subframe, so that the UE can use these RSs for downlink processing in the unicast state, which is beneficial to improving the performance of the unicast service.

[0063] An embodiment of the present invention further provides a computer-readable storage medium having stored thereon computer-executable instructions for performing another MBSFN subframe processing method as described above with reference to any of the methods shown in FIG.

[0064] An embodiment of the present invention also provides an apparatus for implementing MBSFN subframe processing, comprising a processor and a memory storing a computer program executable by the processor, used to execute steps of another MBSFN subframe processing method as described in any of the above-mentioned Figures 7.

[0065] The present disclosure further provides a user terminal, including an apparatus for implementing any of the alternative MBSFN subframe processing described above.

[0066] The present invention will be described in more detail below in conjunction with specific examples.

[0067] FIG. 8 is a diagram showing the configuration of an MBSFN subframe in a first embodiment for implementing MBSFN subframe processing according to the present disclosure. As shown in FIG. 8, in the first embodiment, the base station uses subframe 2 and subframe 7 as MBSFN subframes, and transmits an RS in the zero-fill area of ​​the MBSFN subframe and notifies the UE in the form of a system message.

[0068] In the first embodiment, it is assumed that the transmission occupies one bit and the bit is filled with 1, as shown in Figure 6. In this embodiment, it is assumed that the non-multicast area of ​​the MBSFN subframe occupies one symbol and the CP is a normal CP. The RS of the zero-fill area of ​​the MBSFN subframe is equal to the RS transmission power of the multicast area of ​​the MBSFN.

[0069] FIG. 9 is a flow chart of a first embodiment of a method for processing an MBSFN subframe according to the present disclosure, as shown in FIG. 9, it includes:

[0070] In step 900, as shown in FIG. 6, the UE reads the SIB13 message from the base station.

[0071] In step 901, the UE determines that the RS is included in the zero-fill area of ​​the MBSFN subframe based on the obtained SIB13 message, and the UE receives the entire MBSFN subframe.

[0072] In this way, the UE can start receiving the signal of the MBSFN subframe from the zero-fill region of the MBSFN subframe, extract the signal for the RS in the zero-fill region of the MBSFN subframe based on the time position, and use the obtained RS signal to calculate the channel estimation value H0 and frequency bias Δf0 of all subcarriers of each RB.

[0073] The UE estimates the channel estimate H only at the corresponding position of the multicast region based on the RS of the MBSFN multicast region. MBSFN and Δf MBSFN That is, H MBSFN and Δf MBSFN can directly obtain the corresponding channel estimate only at the position where the RS is transmitted, and the channel estimates at other data positions need to be derived by an algorithm such as interpolation.

[0074] In this case, the interpolation algorithm can comprehensively utilize the channel estimation result based on the signal corresponding to the RS in the zero-fill region of the MBSFN subframe of the present disclosure and the channel estimation result based on the RS in the MBSFN multicast region of the UE, and perform interpolation using an algorithm such as interpolation to obtain a channel estimation value H for the data symbol position in the multicast region.

[0075] The specific calibration method is not limited. For example, first, MBSFN One may use interpolation to calculate the channel estimates for the data symbols in the multicast region, and then simply average them with the channel estimates for the subcarrier positions corresponding to H0, etc.

[0076] In one illustrative example, the UE may further utilize H to perform balanced demodulation on data symbols of the signal in the multicast region.

[0077] As shown in FIG. 8 , in the second embodiment, it is assumed that the base station still uses subframe 2 and subframe 7 as MBSFN subframes, and the base station performs RS transmission in the zero-fill area of ​​the MBSFN subframe, but in the second embodiment, the UE determines whether the UE has transmitted an RS signal in the zero-fill area of ​​the MBSFN subframe by blind demodulating the signal in the zero-fill area of ​​the MBSFN subframe.

[0078] In this embodiment, the non-multicast area of ​​the MBSFN subframe occupies one symbol, the CP is a normal CP, and the RS of the zero-fill area of ​​the MBSFN subframe is equal to the RS transmission power of the multicast area of ​​the MBSFN.

[0079] FIG. 10 is a flow chart of a second embodiment of the MBSFN subframe processing method according to the present disclosure, as shown in FIG.

[0080] In steps 1000 to 1001, in this embodiment, the UE determines that the CP usage mode is normal CP in the cell selection stage.

[0081] In step 1002, the UE receives a signal of an MBSFN subframe for a full Transmission Time Interval (TTI), ie, a 1 ms signal.

[0082] In step 1003, the UE analyzes a physical hybrid ARQ indicator channel (PHICH) to obtain the size of the non-multicast area of ​​the MBSFN subframe, calculates the average received power RSRP of the signal transmitted by the UE in the zero-fill area of ​​the MBSFN subframe, assumes it as P0, and calculates its received SINR as SINR0, and determines that the base station transmits RS in the zero-fill area of ​​the MBSFN subframe if P0 is greater than the preset noise and interference threshold and SINR0 is greater than the preset signal-to-noise ratio threshold. In this way, the UE determines the time position of the zero-fill area of ​​the MBSFN subframe and extracts the RS in the zero-fill area of ​​the MBSFN subframe. The UE can then use the obtained RS signal to improve its performance in demodulating unicast or multicast.

[0083] The above description is only a preferred embodiment of the present invention, and does not limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A step of including an MBSFN reference signal RS in a zero-fill area of ​​an MBSFN subframe by a base station, the zero-fill area of ​​the MBSFN subframe being a time-frequency position in a non-MBSFN area when zero-filling is performed in an OFDM symbol adjacent to the MBSFN area; The base station transmits an MBSFN subframe including an MBSFN reference signal. A method for processing MBSFN subframes in a multicast single frequency network.

2. The step of the base station including the MBSFN reference signal RS in the zero-fill area of ​​the MBSFN subframe includes: The method for processing an MBSFN subframe according to claim 1 , comprising arranging the MBSFN reference signal RS in a zero-fill region of the MBSFN subframe in an order from low frequency to high frequency.

3. The step of the base station including the MBSFN reference signal RS in the zero-fill area of ​​the MBSFN subframe includes:

2. The method for processing an MBSFN subframe according to claim 1, wherein the MBSFN reference signal RS is composed of two perfectly matching sequences, one positioned at an even number of subcarrier positions in a zero-fill region of the MBSFN subframe and the other positioned at an odd number of subcarrier positions in a zero-fill region of the MBSFN subframe.

4. The method for processing an MBSFN subframe according to claim 1 , further comprising the step of: the base station notifying a mobile terminal via a system message, the system message including identification information, of whether to include an MBSFN reference signal in the MBSFN subframe.

5. The method for processing an MBSFN subframe according to claim 4, wherein the system message is a System Information Block-13 SIB13 message.

6. The step of notifying a mobile terminal via a system message whether to include an MBSFN reference signal in the MBSFN subframe includes: The method for processing an MBSFN subframe according to claim 5, further comprising the step of: using one bit in a late non-critical extension field of the SIB13 message as the identification information to indicate whether to transmit an MBSFN reference signal RS in a zero-fill area of ​​the MBSFN subframe.

7. A computer-readable storage medium having stored thereon computer-executable instructions for performing the method for processing an MBSFN subframe according to any one of claims 1 to 6.

8. An apparatus for implementing MBSFN subframe processing, comprising: a processor; and a memory in which a computer program executable by the processor is stored, the computer program being used to execute the steps of the MBSFN subframe processing method according to any one of claims 1 to 6.

9. A base station comprising an apparatus for implementing MBSFN subframe processing as claimed in claim 8.

10. a step of a user terminal UE determining that an MBSFN reference signal is included in a zero-fill area of ​​an MBSFN subframe, the zero-fill area of ​​the MBSFN subframe being a time-frequency position in a non-MBSFN area at which zero-filling is performed in an OFDM symbol adjacent to the MBSFN area; A method for processing an MBSFN subframe in a multicast single frequency network, comprising: a user terminal determining a time position of a zero-fill region of the MBSFN subframe, and acquiring an MBSFN reference signal in the zero-fill region of the MBSFN subframe.

11. The step of the UE determining that an MBSFN reference signal is included in a zero-fill area of ​​an MBSFN subframe includes: The method for processing an MBSFN subframe according to claim 10, further comprising: reading identification information in a system message from a base station by the UE; and determining whether the MBSFN reference signal is included in a zero-fill area of ​​the MBSFN subframe based on the identification information.

12. The system message is a SIB13 message, The step of determining whether an MBSFN reference signal is included in a zero-fill area of ​​an MBSFN subframe based on the identification information includes: The method for processing an MBSFN subframe according to claim 11, further comprising: determining whether to transmit the MBSFN reference signal RS in a zero-fill area of ​​the MBSFN subframe according to the identification information in a late non-critical extension field of the SIB13 message.

13. The step of the UE determining that an MBSFN reference signal is included in a zero-fill area of ​​an MBSFN subframe includes: The method for processing an MBSFN subframe according to claim 10, further comprising: a step of: the UE performing blind demodulation of a zero-fill area of ​​the MBSFN subframe; and determining whether the MBSFN reference signal is included in the zero-fill area of ​​the MBSFN subframe based on an acquired signal characteristic.

14. the signal characteristics include an average power for receiving signals within zero-fill regions of the MBSFN subframe and a signal-to-noise ratio (SINR) for receiving signals within zero-fill regions of the MBSFN subframe; The step of determining whether an MBSFN reference signal is included in a zero-fill region of the MBSFN subframe based on the acquired signal characteristics includes:

14. The method for processing an MBSFN subframe according to claim 13, comprising: determining that the MBSFN reference signal is included in the zero-fill region of the MBSFN subframe when an average power for receiving a signal in the zero-fill region of the acquired MBSFN subframe is greater than a preset noise and interference threshold, and / or an SINR for receiving a signal in the zero-fill region of the MBSFN subframe is greater than a preset signal-to-noise ratio threshold.

15. A computer-readable storage medium having stored thereon computer-executable instructions for performing the method for processing an MBSFN subframe according to any one of claims 10 to 14.

16. An apparatus for implementing MBSFN subframe processing, comprising: a processor; and a memory in which a computer program executable by the processor is stored, the computer program being used to execute the steps of the MBSFN subframe processing method according to any one of claims 10 to 14.

17. A user equipment (UE) comprising an apparatus for implementing MBSFN subframe processing as claimed in claim 16.

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