Abnormal cell detection method, device, mobile terminal and storage medium

Abstract

The embodiments of the present disclosure provide a method, device, mobile terminal and storage medium for detecting abnormal cells. The method comprises: the physical layer determines a first power difference value according to the received power of the secondary synchronization signal and the received power of the demodulation reference signal of the physical layer broadcast channel; based on the comparison of the first power difference value and the first power threshold, determines whether the current cell where the mobile terminal is located is abnormal. The solution provided by the implementation of the present disclosure can effectively identify abnormal cells by optimizing the relevant business processes for generating SS-RSRP measurement results, avoid communication interruptions caused by the failure of user equipment to reside in abnormal cells, and significantly improve user experience.

Description

Technical Field

[0001] The present invention relates to but is not limited to the field of mobile communications, and in particular to an abnormal cell detection method, device, mobile terminal and storage medium. Background Art

[0002] Mobile communication related specifications stipulate that the secondary synchronization signal SSS and the physical layer broadcast channel demodulation reference signal PBCH-DMRS have the same transmission power. In the UE, the physical layer can use SSS and PBCH-DMRS, or the channel state information reference signal CSI-RS when the upper layer has clear instructions, to generate the synchronization signal reference signal received power SS-RSRP measurement result.

[0003] However, the relevant specifications do not involve the identification and handling of related anomalies. How to continuously optimize and timely identify anomalies is an important aspect to further improve the communication quality of mobile terminals. Summary of the invention

[0004] The embodiments of the present disclosure provide an abnormal cell detection method, device, mobile terminal and storage medium. By optimizing the relevant business process of generating SS-RSRP measurement results, abnormal cells can be effectively identified, and communication interruption caused by failure of user equipment to reside in abnormal cells can be avoided, thereby significantly improving user experience.

[0005] The present disclosure provides an abnormal cell detection method, which is applied to a mobile terminal and includes:

[0006] The physical layer determines a first power difference according to the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal;

[0007] Based on the comparison between the first power difference and the first power threshold, it is determined whether the current cell where the mobile terminal is located is abnormal.

[0008] The embodiment of the present disclosure further provides an abnormal cell detection device, which is arranged in a mobile terminal and includes:

[0009] A power difference calculation module, configured to determine a first power difference value according to a received power of a secondary synchronization signal and a received power of a physical layer broadcast channel demodulation reference signal;

[0010] The abnormality determination module is configured to determine whether the current cell where the mobile terminal is located is abnormal based on the comparison between the first power difference value and the first power threshold.

[0011] The present disclosure also provides a mobile terminal, including a communication chip, wherein the communication chip is configured to execute:

[0012] The physical layer determines a first power difference according to the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal;

[0013] Based on the comparison between the first power difference and the first power threshold, it is determined whether the current cell where the mobile terminal is located is abnormal.

[0014] The embodiments of the present disclosure further provide a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the abnormal cell detection method as described in any embodiment of the present disclosure is implemented.

[0015] Other aspects will be apparent upon reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of parameter values ​​in relevant specifications;

[0018] Figure 2 A SS-RSRP measurement result generation process in a related scheme;

[0019] Figure 3 This is a flow chart of an abnormal cell detection method in an embodiment of the present disclosure;

[0020] Figure 4 This is a flow chart of another abnormal cell detection method in an embodiment of the present disclosure;

[0021] Figure 5 This is a flow chart of another abnormal cell detection method in an embodiment of the present disclosure;

[0022] Figure 6 This is a flow chart of another abnormal cell detection method in an embodiment of the present disclosure;

[0023] Figure 7 This is a flow chart of another abnormal cell detection method in an embodiment of the present disclosure;

[0024] Figure 8 This is a flow chart of another abnormal cell detection method in an embodiment of the present disclosure;

[0025] Fig. 9 This is a flow chart of another abnormal cell detection method in an embodiment of the present disclosure;

[0026] Fig.10 The figure is a schematic diagram of the structure of an abnormal cell detection device in an embodiment of the present disclosure.

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Before describing the specific embodiments, the abbreviations of the relevant terms involved in the present disclosure are explained as follows:

[0034]

[0035] In the relevant technical solutions in the field of mobile communications, the protocol 3GPP TS38.214 stipulates:

[0036] 1. The downlink SSS EPRE may be given by the parameter ss-PBCH-B l ockPower provided by the higher layer, and the UE may assume that the EPRE ratio of SSS EPRE and PBCH DM-RS is 0 dB.

[0037] 2. The downlink CS I-RS EPRE can be derived from the parameters ss-PBCH-B l ockPower and powerControl OffsetSS provided by the higher layer.

[0038] Among them, the value ranges of ss-PBCH-B l ockPower and powerControl OffsetSS are as follows Figure 1 shown.

[0039] According to the above specifications, SSS and PBCH DMRS have the same transmit power. The transmit power difference between SSS and CSI-RS can be indicated by the parameter powerControlOffsetSS.

[0040] The protocol 3GPP TS 38.215 stipulates that in the 5G network, the UE physical layer can use SSS and PBCH-DMRS when generating 5G SS-RSRP measurement results, and can also use CS I-RS if there is clear instruction from the higher layer.

[0041] Therefore, in a technical solution that can be adopted, the process of generating SS-RSRP measurement results at the physical layer is as follows: Figure 2 As shown, including:

[0042] Step 210, check whether the upper layer indicates to use CS I-RS. If it indicates to use CS I-RS, execute steps 220 and 230, otherwise, execute steps 240, 250 and 260;

[0043] Step 220, obtaining SSS and PBCH-DMRS receiving power;

[0044] Step 230, averaging the SSS and PBCH-DMRS received powers to generate a SS-RSRP measurement result;

[0045] Step 240, obtaining SSS and PBCH-DMRS receiving power;

[0046] Step 250, obtaining CS I-RS receiving power;

[0047] Step 260: Generate an SS-RSRP measurement result using the SSS received power, the PBCH-DMRS received power, and the CRI-RS received power according to the powerControlOffsetSS value provided by the higher layer.

[0048] It can be seen that in the above scheme, the UE's physical layer uses SSS, PBCH-DMRS and CSI-RS signals to generate SS-RSRP measurement results and report them, but does not compare the received power values ​​of SSS and PBCH-DMRS. Even if an abnormal cell with a large difference in the received power values ​​of SSS and PBCH-DMRS is encountered, the abnormality is not handled. This will cause the UE to fail to reside in a cell with abnormal transmit power, affecting the mobile phone user experience.

[0049] In order to avoid the failure of UE to reside in a cell with abnormal transmit power, the above process of generating SS-RSRP results at the physical layer of the UE is optimized, a cell power abnormality prediction mechanism is introduced, and an abnormal cell detection scheme is proposed.

[0050] The present disclosure provides an abnormal cell detection method, which is applied to a mobile terminal, such as Figure 3 As shown, including:

[0051] Step 310, the physical layer determines a first power difference according to the received power of the secondary synchronization signal SSS and the received power of the physical layer broadcast channel demodulation reference signal PBCH-DMRS;

[0052] Step 350: Determine whether the current cell where the mobile terminal is located is abnormal based on a comparison between the first power difference and a first power threshold.

[0053] In some exemplary embodiments, step 350 includes: when the first power difference is greater than or equal to a set first power threshold, determining that the current cell where the mobile terminal is located is abnormal; when the first power difference is less than the set first power threshold, determining that the current cell where the mobile terminal is located is normal.

[0054] In some exemplary embodiments, the first power difference X=|Ps-Pp|, where Ps is the received power of the SSS, and Pp is the received power of the PBCH-DMRS.

[0055] In some exemplary embodiments, Figure 4 As shown, the method also includes:

[0056] Step 320: The physical layer determines a second power difference value according to the received power of the SSS, the received power of the CSI-RS, and the CSI-RS transmit power deviation value;

[0057] Step 330, the physical layer determines a third power difference value according to the received power of the PBCH-DMRS, the received power of the CSI-RS, and the CSI-RS transmit power deviation value;

[0058] Step 360: Determine whether the current cell is abnormal based on a comparison between the second power difference and the second power threshold and / or a comparison between the third power difference and the third power threshold.

[0059] In some exemplary embodiments, steps 320, 330, and 360 are performed when the first power difference value is less than the first power threshold; step 360 includes: when the second power difference value is greater than or equal to the set second power threshold, or the third power difference value is greater than or equal to the set third power threshold, determining that the current cell is abnormal; when the second power difference value is less than the set second power threshold, and the third power difference value is less than the set third power threshold, determining that the current cell is normal.

[0060] In some exemplary embodiments, the second power difference Y = |Ps-(Pc-offsetSS)|, Ps is the received power of the SSS, Pc is the received power of the CSI-RS, offsetSS is the CSI-RS transmit power offset value, indicating the difference in transmit power between SSS / PBCH-DMRS and CSI-RS.

[0061] In some exemplary embodiments, the third power difference Z = |Pp-(Pc-offsetSS)|, Pp is the received power of the PBCH-DMRS, Pc is the received power of the CSI-RS, offsetSS is the CSI-RS transmit power offset value, indicating the difference in transmit power between SSS / PBCH-DMRS and CSI-RS.

[0062] In some exemplary embodiments, offsetSS is determined according to the parameter powerControlOffsetSS configured by the higher layer. It can be seen that the difference in transmit power between SSS and CSI-RS and the difference in transmit power between PBCH-DMRS and CSI-RS are the same value offsetSS

[0063] In some exemplary embodiments, Figure 5 As shown, in the case where it is determined that the current cell is abnormal, the method further includes:

[0064] Step 370: The physical layer generates an invalid synchronization signal reference signal received power measurement result; or, the physical layer notifies the higher layer that the current cell is abnormal.

[0065] In some exemplary embodiments, the higher layer is a resource control (RC) layer above the physical layer.

[0066] In some exemplary embodiments, Figure 6 or Figure 7 As shown, when the current cell is not determined to be abnormal, the method further includes:

[0067] Step 380: The physical layer generates a synchronization signal reference signal received power measurement result according to the instruction of the higher layer.

[0068] In some exemplary embodiments, step 380 includes:

[0069] In the case that the higher layer does not indicate the use of the channel state information reference signal, an average calculation is performed according to the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal to generate the synchronization signal reference signal received power SS-RSRP measurement result;

[0070] When the higher layer indicates the use of the channel state information reference signal, the synchronization signal reference signal received power SS-RSRP measurement result is generated based on the channel state information reference signal sending power deviation value, the channel state information reference signal receiving power, the secondary synchronization signal receiving power and the physical layer broadcast channel demodulation reference signal receiving power.

[0071] It should be noted that the specific aspects of generating the SS-RSRP measurement result in step 380 are implemented according to relevant schemes, and the relevant aspects are not further discussed in the embodiments of the present disclosure.

[0072] In some exemplary embodiments, the method further comprises:

[0073] When the higher layer does not instruct to use the channel state information reference signal, the physical layer obtains the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal;

[0074] When the higher layer indicates to use the channel state information reference signal, the physical layer obtains the reception power of the channel state information reference signal, the reception power of the secondary synchronization signal and the reception power of the physical layer broadcast channel demodulation reference signal.

[0075] The present disclosure also provides a method for detecting abnormal cells. Figure 8 As shown, including:

[0076] Step 8110: whether the upper layer indicates to use CS I-RS, if yes, execute step 8310, if no, execute 8210;

[0077] Step 8210, obtaining SSS and PBCH-DMRS receiving power;

[0078] Step 8220, determining whether the first power difference is less than the first power threshold; if yes, executing 8230, if no, executing 8240;

[0079] Step 8230, averaging the SSS received power and the PBCH-DMRS received power to generate an SS-RSRP measurement result;

[0080] Step 8240, generating an invalid SS-RSRP measurement result; or, notifying a higher layer that the current cell is abnormal;

[0081] Step 8310, obtaining SSS and PBCH-DMRS received power, and obtaining CSI-RS received power;

[0082] Step 8320, determining whether the first power difference is less than the first power threshold; if yes, executing 8330, if no, executing 8240;

[0083] Step 8330: Generate an SS-RSRP measurement result according to the SSS received power, the PBCH-DMRS received power, the CSI-RS received power and the CSI-RS transmit power offset value.

[0084] The CS I-RS transmit power offset value is determined according to the high-level powerControlOffsetSS.

[0085] The present disclosure also provides a method for detecting abnormal cells. Fig. 9 As shown, including:

[0086] Step 9110: whether the upper layer indicates to use CS I-RS, if yes, execute step 9310, if no, execute 9210;

[0087] Step 9210, obtaining SSS and PBCH-DMRS receiving power;

[0088] Step 9220, determining whether the first power difference is less than the first power threshold; if yes, executing 9230, if no, executing 9240;

[0089] Step 9230, averaging the SSS received power and the PBCH-DMRS received power to generate an SS-RSRP measurement result;

[0090] Step 9240, generating an invalid SS-RSRP measurement result; or, notifying a higher layer that the current cell is abnormal;

[0091] Step 9310, obtaining SSS and PBCH-DMRS received power, and obtaining CSI-RS received power;

[0092] Step 9320, determining whether the first power difference is less than the first power threshold, the second power difference is less than the second power threshold, and the third power difference is less than the third power threshold; if yes, execute 9330, if no, execute 9240;

[0093] Step 9330: Generate an SS-RSRP measurement result according to the SSS received power, the PBCH-DMRS received power, the CSI-RS received power and the CSI-RS transmit power offset value.

[0094] The CS I-RS transmit power offset value is determined according to the high-level powerControlOffsetSS.

[0095] The present disclosure also provides an abnormal cell detection device 100, which is arranged in a mobile terminal. Fig.10 As shown, including:

[0096] The power difference calculation module 1100 is configured to determine a first power difference value according to the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal;

[0097] The abnormality determination module 1200 is configured to determine whether the current cell where the mobile terminal is located is abnormal based on the comparison between the first power difference and the first power threshold.

[0098] In some exemplary embodiments, the power difference calculation module 1100 is further configured to determine a second power difference value according to the received power of the secondary synchronization signal, the received power of the channel state information reference signal, and the channel state information reference signal transmit power deviation value; determine a third power difference value according to the received power of the physical layer broadcast channel demodulation reference signal, the received power of the channel state information reference signal, and the channel state information reference signal transmit power deviation value;

[0099] Correspondingly, the abnormality determination module 1200 is further configured to determine whether the current cell is abnormal based on a comparison between the second power difference value and a second power threshold and / or a comparison between the third power difference value and a third power threshold.

[0100] In some exemplary embodiments, the apparatus further comprises:

[0101] The reporting module 1300 is configured to generate an invalid synchronization signal reference signal received power measurement result when determining that the current cell is abnormal, or to notify a higher layer that the current cell is abnormal;

[0102] The reporting module 1300 is further configured to generate a measurement result of the received power of the synchronization signal reference signal according to the instruction of the higher layer when the current cell is not determined to be abnormal, that is, to generate a measurement result of the received power when the current cell is normal.

[0103] The embodiment of the present disclosure further provides a mobile terminal, comprising the abnormal cell detection device 100 as described above.

[0104] The present disclosure also provides a mobile terminal, characterized in that it includes a communication chip, and the communication chip is configured to execute:

[0105] The physical layer determines a first power difference according to the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal;

[0106] Based on the comparison between the first power difference and the first power threshold, it is determined whether the current cell where the mobile terminal is located is abnormal.

[0107] The present disclosure also provides an electronic device, including:

[0108] one or more processors;

[0109] a storage device for storing one or more programs,

[0110] When the one or more programs are executed by the one or more processors, the one or more processors implement the abnormal cell detection method described in any of the above embodiments.

[0111] In some exemplary embodiments, the electronic device is a mobile terminal.

[0112] An embodiment of the present disclosure further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the abnormal cell detection method described in any of the above embodiments when running.

[0113] The abnormal cell detection solution provided by the embodiment of the present disclosure can effectively identify abnormal cells by optimizing the relevant business processes for generating SS-RSRP measurement results, avoid communication interruption caused by failure of user equipment to reside in abnormal cells, and significantly improve user experience.

[0114] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0115] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An abnormal cell detection method, applied to a mobile terminal, characterized in that: include: The physical layer determines a first power difference according to the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal; Based on the comparison between the first power difference and the first power threshold, it is determined whether the current cell where the mobile terminal is located is abnormal.

2. The method according to claim 1, characterized in that The method further comprises: The physical layer determines a second power difference value according to the received power of the secondary synchronization signal, the received power of the channel state information reference signal, and the transmitted power deviation value of the channel state information reference signal; The physical layer determines a third power difference value according to the received power of the physical layer broadcast channel demodulation reference signal, the received power of the channel state information reference signal, and the channel state information reference signal transmit power deviation value; Based on a comparison between the second power difference value and a second power threshold and / or a comparison between the third power difference value and a third power threshold, it is determined whether the current cell is abnormal.

3. The method according to claim 1 or 2, characterized in that In the case where it is determined that the current cell is abnormal, the method further includes: The physical layer generates an invalid synchronization signal reference signal received power measurement result; or, The physical layer notifies the higher layer that the current cell is abnormal.

4. The method according to claim 3, characterized in that The method further comprises: When it is not determined that the current cell is abnormal, the physical layer generates a synchronization signal reference signal received power measurement result according to an instruction of a higher layer.

5. The method according to claim 4, characterized in that The physical layer generates a synchronization signal reference signal received power measurement result according to an instruction of a higher layer, including: In the case where the higher layer does not indicate the use of the channel state information reference signal, performing an average calculation based on the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal to generate the measurement result of the received power of the synchronization signal reference signal; When the higher layer indicates the use of the channel state information reference signal, the synchronization signal reference signal receiving power measurement result is generated based on the channel state information reference signal sending power deviation value, the channel state information reference signal receiving power, the secondary synchronization signal receiving power and the physical layer broadcast channel demodulation reference signal receiving power.

6. The method according to claim 1 or 2, characterized in that: The method further comprises: When the higher layer does not instruct to use the channel state information reference signal, the physical layer obtains the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal; When the higher layer indicates to use the channel state information reference signal, the physical layer obtains the reception power of the channel state information reference signal, the reception power of the secondary synchronization signal and the reception power of the physical layer broadcast channel demodulation reference signal.

7. An abnormal cell detection device, arranged in a mobile terminal, characterized in that: include: A power difference calculation module, configured to determine a first power difference value according to a received power of a secondary synchronization signal and a received power of a physical layer broadcast channel demodulation reference signal; The abnormality determination module is configured to determine whether the current cell where the mobile terminal is located is abnormal based on the comparison between the first power difference value and the first power threshold.

8. The device according to claim 7, characterized in that Also includes: Report module, configured as: In the case of determining that the current cell is abnormal, generating an invalid synchronization signal reference signal received power measurement result, or notifying a higher layer that the current cell is abnormal; When it is not determined that the current cell is abnormal, a synchronization signal reference signal received power measurement result is generated according to an instruction of a higher layer.

9. A mobile terminal, characterized in that: A communication chip is included, wherein the communication chip is configured to perform: The physical layer determines a first power difference according to the received power of the secondary synchronization signal and the received power of the physical layer broadcast channel demodulation reference signal; Based on the comparison between the first power difference and the first power threshold, it is determined whether the current cell where the mobile terminal is located is abnormal.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the abnormal cell detection method according to any one of claims 1 to 6 is implemented.

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