CN114339917A - Inter-system neighbor cell searching method and device, storage medium and terminal equipment - Google Patents
Inter-system neighbor cell searching method and device, storage medium and terminal equipment Download PDFInfo
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Abstract
A method and a device for searching inter-system neighbor cells, a storage medium and a terminal device are provided, wherein the method for searching inter-system neighbor cells comprises the following steps: detecting SSBs within the SMTC window in the current measurement period; iteratively moving the position of the SMTC window in the next measurement cycle and detecting SSB in the SMTC window of the next measurement cycle, at least when SSB is not detected in the SMTC window of the current measurement cycle, until SSB is detected in the SMTC window, the position of the SMTC window after moving being different from the position of the SMTC window before moving; and reporting the information of the detected SSB. By the technical scheme, the success rate of searching the adjacent cells can be improved, and the communication efficiency and the user experience are improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for searching a neighboring cell of a different system, a storage medium, and a terminal device.
Background
Currently, in a New Radio (NR) system, User Equipment (UE) needs to measure a neighboring cell so as to switch or redirect the UE, where the measurement includes inter-frequency measurement and inter-system measurement in the NR system. When the UE performs these measurements, a special Measurement Gap (Measurement Gap) is required. In the measurement gap, the UE specially measures the adjacent cell without transmitting other data information. When the resources configured for the UE are located in the measurement time window of Gap in the time domain, and the UE performs inter-frequency/inter-system measurement, it is impossible to transmit corresponding information on these resources, thereby affecting user experience. The NR protocol introduces a RRM measurement time configuration window based on a Synchronization Signal Block (SSB), called SMTC window. The UE obtains the measurement period and time of all SSBs through SMTC.
However, for the NR and Long Term Evolution (LTE) multimode scenario, due to the uncertainty of time alignment between LTE and NR systems, when the UE receives data according to the configured SMTC, it cannot be determined that there is an SSB in the SMTC window. The UE may not search the neighboring Cell according to the SMTC window configuration, cannot establish a Secondary Cell Group (SCG), or cannot initiate a handover from LTE to NR, which affects user experience.
Disclosure of Invention
The invention provides a method and a device for searching adjacent cells of a different system, a storage medium and a terminal device, which can improve the success rate of searching adjacent cells and improve the communication efficiency and user experience.
To solve the foregoing technical problem, an embodiment of the present invention in a first aspect provides a method for searching inter-system neighbor cells, where the method for searching inter-system neighbor cells includes: detecting SSBs within the SMTC window in the current measurement period; iteratively moving the position of the SMTC window in the next measurement cycle and detecting SSB in the SMTC window of the next measurement cycle, at least when SSB is not detected in the SMTC window of the current measurement cycle, until SSB is detected in the SMTC window, the position of the SMTC window after moving being different from the position of the SMTC window before moving; and reporting the information of the detected SSB.
Optionally, the moving the position of the SMTC window in the next SMTC measurement period includes: and moving the SMTC window according to a preset offset in the next SMTC measuring period, wherein the preset offset is less than or equal to the length of the SMTC window.
Optionally, the STMC window has a start position and an end position, and moving the STMC window according to the preset offset includes: and increasing or decreasing the preset offset to the starting position and the ending position of the SMTC window to obtain the position of the moved SMTC window.
Optionally, the moving the SMTC window further includes, after the location of the next SMTC measurement period: and if the SMTC window is positioned in the Tth measurement period and the T +1 th measurement period, re-determining the position of the SMTC window in the T +2 th measurement period, wherein T represents the next SMTC measurement period and is a positive integer greater than or equal to 1.
Optionally, the re-determining the position of the SMTC window in the N +2 th measurement period includes: determining an original starting position and an original ending position of the SMTC window in a T +2 th measuring period according to the starting position and the ending position of the SMTC window in the T-th measuring period and a preset offset;
and taking a modulus of the original starting position and the original ending position with the length of the measuring period to obtain a final starting position and a final ending position of the SMTC window in the T +2 measuring period.
Optionally, the inter-system neighbor cell searching method further includes: and if SSB is detected in the SMTC window in the Tth measurement period, determining that the position of the SMTC window in the measurement period after the Tth measurement period is the same as the position of the SMTC window in the Tth measurement period and is a positive integer greater than or equal to 1.
Optionally, the iteratively moving the position of the SMTC window in the next measurement period at least when no SSB is detected in the current measurement period includes: iteratively moving the location of the SMTC window at the next measurement period when no SSB is detected within the current measurement period; or, when no SSB is detected in the current measurement period and a plurality of consecutive measurement periods before the current measurement period, iteratively moving the position of the SMTC window in the next measurement period.
In a second aspect, an embodiment of the present invention provides an inter-system neighbor cell searching apparatus, where the apparatus includes: the detection module is used for detecting the SSB in the SMTC window in the current measurement period; a windowing module, configured to, at least when no SSB is detected in the SMTC window of the current measurement period, iteratively move a position of the SMTC window in a next measurement period, and detect an SSB in the SMTC window of the next measurement period until an SSB is detected in the SMTC window, where the position of the moved SMTC window is different from the position of the SMTC window before the movement; and the reporting module is used for reporting the detected information of the SSB.
In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the inter-system neighbor search method are performed.
In a fourth aspect, an embodiment of the present invention provides a terminal device, including a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor executes the steps of the inter-system neighbor search method when executing the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
since the SMTC window and the SSB are sent periodically, when the terminal device does not detect an SSB in the SMTC window of the current measurement period, it means that an SSB cannot be detected in the SMTC window of the subsequent measurement period with a high probability. In the technical scheme of the invention, the SSB is possible to fall in the SMTC window by moving the position of the SMTC window in the next measurement period, and the SSB can be detected in the SMTC window after a certain movement by moving the SMTC window in an iterative manner, so that the success rate of adjacent area search is improved, and the communication efficiency and the user experience are improved.
Furthermore, the STMC window is moved according to a preset offset, and the length of the SMTC window is set to be smaller than or equal to the preset offset, so that the STMC window which is moved for many times can comprehensively cover each time position in a detection period, the probability of the success of SSB detection is improved, and the success rate of neighbor cell search is further improved.
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FIG. 1 is a diagram of a specific application scenario in the prior art;
fig. 2 is a flowchart of a method for searching a neighboring cell of a different system according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating an exemplary application scenario of the present invention;
FIG. 4 is a diagram illustrating another exemplary application scenario of the present invention;
fig. 5 is a schematic structural diagram of a inter-system neighbor cell searching apparatus according to an embodiment of the present invention.
Detailed Description
The communication system applicable to the embodiment of the present application includes, but is not limited to, a Long Term Evolution (LTE) system, a 5th-generation (5G) system, an NR system, and a future evolution system or a multiple communication convergence system. The 5G system may be a non-standalone (NSA) 5G system or a Standalone (SA) 5G system. The technical solution of the present application is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-event architecture, and the like.
The present application relates generally to communication between a terminal device and a network device. Wherein:
the Network device in the embodiment of the present application may also be referred to as an Access Network device, and may be, for example, a Base Station (BS) (also referred to as a base station device), where the Network device is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, a device providing a base station function in a second generation (2nd-generation, 2G) network includes a Base Transceiver Station (BTS), a device providing a base station function in a third generation (3rd-generation, 3G) network includes a node B (NodeB), a device providing a base station function in a fourth generation (4th-generation, 4G) network includes an Evolved node B (eNB), and in a Wireless Local Area Network (WLAN), the device providing a base station function is an Access Point (AP), a next generation base station node (gNB) providing a base station function in NR, and a continuously Evolved node B (eNB), wherein the gNB and the terminal device communicate using NR technology, the eNB and the terminal device communicate using Evolved Universal Radio Access (Radio), E-UTRA) technology, both the gNB and ng-eNB can connect to the 5G core network. The network device in the embodiment of the present application also includes a device that provides a base station function in a future new communication system, and the like.
A terminal equipment (terminal equipment) in the embodiments of the present application may refer to various forms of an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment. A terminal device may also be referred to as a User Equipment (UE), a terminal, etc.
As described in the background art, for an NR and Long Term Evolution (LTE) multimode scenario, due to uncertainty of time alignment between LTE and NR systems, when a UE receives data according to a configured SMTC, it cannot be determined that there is an SSB in the SMTC window. The UE may not search the neighboring Cell according to the SMTC window configuration, cannot establish a Secondary Cell Group (SCG), or cannot initiate a handover from LTE to NR, which affects user experience.
As shown in fig. 1, the periods of the SMTC window and the SSB are 2 radio frames, i.e., 20 milliseconds (ms). Due to the time misalignment of LTE and NR systems, the SMTC window is at the head of a cycle and the SSB is in the middle of a cycle. If the UE detects the SSB according to the current SMTC window configuration, it will be unable to search the neighboring cell.
In the technical scheme of the invention, the SSB is possible to fall in the SMTC window by moving the position of the SMTC window in the next measurement period, and the SSB can be detected in the SMTC window after a certain movement by moving the SMTC window in an iterative manner, so that the success rate of adjacent area search is improved, and the communication efficiency and the user experience are improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 2 is a flowchart of a method for searching a neighboring cell of a different system according to an embodiment of the present invention.
The inter-system neighbor cell searching method of the embodiment of the invention can be used in the terminal equipment, that is, the terminal equipment can execute each step of the method, and a chip in the terminal equipment can execute each step of the method.
Specifically, the inter-system neighbor cell searching method may include the following steps:
in step 201, SSB is detected within the SMTC window in the current measurement period;
in step 202, at least when no SSB is detected in the SMTC window of the current measurement period, iteratively moving the position of the SMTC window in the next measurement period and detecting SSB in the SMTC window of the next measurement period until SSB is detected in the SMTC window, the position of the moved SMTC window being different from the position of the SMTC window before moving;
in step 203, information of the detected SSB is reported.
It should be noted that the sequence numbers of the steps in this embodiment do not represent a limitation on the execution sequence of the steps.
It can be understood that, in a specific implementation, the inter-system neighbor cell searching method may be implemented by using a software program, where the software program runs in a processor integrated inside a chip or a chip module. The method may also be implemented by combining software and hardware, and the present application is not limited thereto.
The embodiment of the invention can be applied to the scene that the terminal equipment carries out cell measurement between different communication systems. Such as LTE and NR, or various evolving communication systems in the future.
In this embodiment, the measurement period refers to a period of SMTC windows, and each measurement period has one SMTC window. The terminal device may detect SSBs within the SMTC window without the terminal device having to detect SSBs outside the SMTC window. The position of the SMTC window in the current measurement period may be configured in advance by the network device through high-layer signaling, or may be determined in the last iteration process.
Specifically, the measurement period may be the same as the transmission period of the SSB, and may be, for example, 5ms,10ms,20ms,40ms,80ms, or 160 ms. The SMTC window has a duration that may be set according to the number of SSBs of the measured cell, and may be, for example, 1ms,2ms,3ms,4ms, or 5 ms.
In an implementation of step 202, the location of the SMTC window within a measurement cycle may be moved when no SSB is detected within the SMTC window within one or more measurement cycles. The process of moving the position of the SMTC window within the measurement period is an iterative process, the stop condition for the iteration being that SSB is detected within the SMTC window.
Specifically, the position of the SMTC window within the measurement period is a relative position. For example, the SMTC window before the movement is located at the head of the measurement period, and the SMTC window after the movement is located in the middle of the measurement period.
In the specific implementation of step 203, the terminal device may obtain the SSB information in the SMTC window, where the SSB information may be the measurement period and time of the SSB. The terminal device may report the SSB information to a network device, such as a base station or a core network.
In a non-limiting embodiment, the STMC window is moved by a preset offset in the next SMTC measurement period, where the preset offset is less than or equal to the length of the SMTC window.
In the embodiment of the invention, the preset offset is set to be less than or equal to the length of the SMTC window, so that the STMC window which moves for many times can comprehensively cover each time position in the detection period, thereby improving the probability of the success detection of the SSB and further improving the success rate of the adjacent region search.
For example, referring to fig. 3, the measurement period is 20ms for two radio frames. In the measurement period of the radio frame N and the radio frame N +1, the terminal device does not detect the SSB in the SMTC window. Then, in the measurement period of the radio frame N +2 and the radio frame N +3, the position of the SMTC window may be moved, and the terminal device still does not detect the SSB in the SMTC window. In the measurement period of the radio frame N +4 and the radio frame N +5, the position of the SMTC window may be continuously moved, and the terminal device may stop moving the SMTC window when detecting the SSB in the SMTC window. In the measurement period of radio frame N +6 and radio frame N +7, the position of the SMTC window is the same as that in the last measurement period.
Further, the STMC window has a start position and an end position, and the start position and the end position of the SMTC window are increased or decreased by the preset offset to obtain the position of the moved SMTC window.
Specifically, taking fig. 3 as an example, increasing the start position and the end position by the preset offset refers to moving the SMTC window to the right, and decreasing the start position and the end position by the preset offset refers to moving the SMTC window to the left.
In one non-limiting embodiment, if the SMTC window is located in the T-th measurement period and the T + 1-th measurement period, the position of the SMTC window is re-determined in the T + 2-th measurement period, T represents the next SMTC measurement period, and T is a positive integer greater than or equal to 1.
In this embodiment, the SMTC window is located in the tth measurement period and the T +1 th measurement period, which means that the SMTC window spans two measurement periods, and in this case, in order to ensure the accuracy of measurement, the position of the SMTC window may be determined again in the next measurement period after the two measurement periods, that is, the T +2 th measurement period.
Specifically, the re-determining of the location of the SMTC window may be an initial location of the SMTC window configured by the higher layer signaling.
Further, the SMTC window may also be repositioned in the following manner: determining an original starting position and an original ending position of the SMTC window in a T +2 th measuring period according to the starting position and the ending position of the SMTC window in the T-th measuring period and a preset offset; and taking a modulus of the original starting position and the original ending position with the length of the measuring period to obtain a final starting position and a final ending position of the SMTC window in the T +2 measuring period.
Referring to fig. 4, in the measurement period of the radio frame N +2 and the radio frame N +3, the SMTC window is located at 4-9ms, and the terminal device does not detect the SSB in the SMTC window. In the measurement period of the radio frame N +4 and the radio frame N +5, the position of the SMTC window may be moved to 8-13ms, and the terminal device does not detect the SSB in the SMTC window. And in the measurement period of the radio frame N +6 and the radio frame N +7, the position of the SMTC window is continuously moved for 12-17ms, and the terminal equipment does not detect SSB in the SMTC window. And in the measurement period of the radio frame N +8 and the radio frame N +9, the position of the SMTC window is continuously moved for 16-21ms, and the terminal equipment does not detect SSB in the SMTC window. Since the SMTC window spans two measurement periods, the range of 20-25 modulo 20 in the measurement periods of the radio frame N +12 and the radio frame N +13 can be used to determine the position of the SMTC window to be 0-5 ms.
In the embodiment of the invention, the position of the SMTC window after the movement and the position of the SMTC window before the movement are partially overlapped, for example, the time of 0-5ms and 4-9ms is overlapped by 1 ms. The reason why the setting is so is that the detection effect of the terminal equipment at the boundary position of the SMTC window is poor, and through the mode, the SSB detection of the terminal equipment at the overlapping position can be more accurate, so that the success rate of the SSB detection is improved.
In one non-limiting embodiment, the SMTC window is iteratively moved in position for the next measurement cycle when no SSB is detected within a single measurement cycle.
Alternatively, when no SSB is detected in the current measurement period and a number of consecutive measurement periods before the current measurement period, the position of the SMTC window in the next measurement period may be iteratively moved.
By setting the operation that the SSB is not detected in a plurality of measurement periods to trigger the movement of the SMTC window, the robustness of SSB detection can be ensured, and unnecessary power consumption caused by the fact that the terminal falsely detects the SSB to trigger the window movement is avoided.
Referring to fig. 5, an embodiment of the present invention further discloses a device for searching inter-system neighbor cells. The inter-system neighbor searching means 50 may include:
a detecting module 501, configured to detect an SSB within an SMTC window in a current measurement period;
a windowing module 502, configured to, at least when no SSB is detected in the SMTC window of the current measurement period, iteratively move a position of the SMTC window in a next measurement period and detect an SSB in the SMTC window of the next measurement period until an SSB is detected in the SMTC window, where the position of the moved SMTC window is different from the position of the SMTC window before the movement;
a reporting module 503, configured to report the detected information of the SSB.
The embodiment of the invention can try to discover and search the adjacent cell under the conditions that the SMTC window can not detect SSB in different current network or private network scenes by moving the SMTC window to search the adjacent cell, thereby increasing the adjacent cell searching capability and the scene compatibility aiming at the equipment.
For more details of the working principle and the working mode of the inter-system neighbor cell searching apparatus 50, reference may be made to the relevant description in the embodiments corresponding to fig. 2 to fig. 4, and details are not repeated here.
In a specific implementation, the inter-System neighbor cell searching apparatus may correspond to a Chip having an inter-System neighbor cell searching function in a terminal device, such as a System-On-a-Chip (SOC), a baseband Chip, and the like; or the terminal device comprises a chip module with a different system neighbor searching function; or to a chip module having a chip with a data processing function, or to a terminal device.
Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
The embodiment of the invention also discloses a storage medium which is a computer readable storage medium and is stored with a computer program, and the computer program can execute the steps when running. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile memory (non-volatile) or a non-transitory memory (non-transient), and the like.
The embodiment of the invention also discloses terminal equipment which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when executing the computer program, may perform the steps of the method as described above. The user equipment includes but is not limited to a mobile phone, a computer, a tablet computer and other terminal equipment.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.
The "plurality" appearing in the embodiments of the present application means two or more.
The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.
The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.
It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM), SDRAM (SLDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).
The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for searching a neighbor cell of a heterogeneous system is characterized by comprising the following steps:
detecting SSBs within the SMTC window in the current measurement period;
iteratively moving the position of the SMTC window in the next measurement cycle and detecting SSB in the SMTC window of the next measurement cycle, at least when SSB is not detected in the SMTC window of the current measurement cycle, until SSB is detected in the SMTC window, the position of the SMTC window after moving being different from the position of the SMTC window before moving;
and reporting the information of the detected SSB.
2. The inter-system neighbor search method according to claim 1, wherein the moving the position of the SMTC window in the next SMTC measurement period comprises:
and moving the SMTC window according to a preset offset in the next SMTC measuring period, wherein the preset offset is less than or equal to the length of the SMTC window.
3. The inter-system neighbor search method according to claim 2, wherein the STMC window has a start position and an end position, and the moving the STMC window according to the preset offset comprises:
and increasing or decreasing the preset offset to the starting position and the ending position of the SMTC window to obtain the position of the moved SMTC window.
4. The inter-system neighbor search method according to claim 1, wherein said moving the SMTC window after the location of the next SMTC measurement period further comprises:
and if the SMTC window is positioned in the Tth measurement period and the T +1 th measurement period, re-determining the position of the SMTC window in the T +2 th measurement period, wherein T represents the next SMTC measurement period and is a positive integer greater than or equal to 1.
5. The inter-system neighbor searching method according to claim 4, wherein the re-determining the location of the SMTC window in the N +2 th measurement period comprises:
determining an original starting position and an original ending position of the SMTC window in a T +2 th measuring period according to the starting position and the ending position of the SMTC window in the T-th measuring period and a preset offset;
and taking a modulus of the original starting position and the original ending position with the length of the measuring period to obtain a final starting position and a final ending position of the SMTC window in the T +2 measuring period.
6. The inter-system neighbor cell searching method according to claim 1, further comprising:
and if SSB is detected in the SMTC window in the Tth measurement period, determining that the position of the SMTC window in the measurement period after the Tth measurement period is the same as the position of the SMTC window in the Tth measurement period and is a positive integer greater than or equal to 1.
7. The inter-system neighbor search method according to claim 1, wherein said iteratively moving the position of the SMTC window at the next measurement period at least when no SSB is detected in the current measurement period comprises:
iteratively moving the location of the SMTC window at the next measurement period when no SSB is detected within the current measurement period;
or, when no SSB is detected in the current measurement period and a plurality of consecutive measurement periods before the current measurement period, iteratively moving the position of the SMTC window in the next measurement period.
8. An inter-system neighbor searching apparatus, comprising:
the detection module is used for detecting the SSB in the SMTC window in the current measurement period;
a windowing module, configured to, at least when no SSB is detected in the SMTC window of the current measurement period, iteratively move a position of the SMTC window in a next measurement period, and detect an SSB in the SMTC window of the next measurement period until an SSB is detected in the SMTC window, where the position of the moved SMTC window is different from the position of the SMTC window before the movement;
and the reporting module is used for reporting the detected information of the SSB.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the inter-system neighbor search method according to any one of claims 1 to 7.
10. A terminal device comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor executes the computer program to perform the steps of the inter-system neighbor search method according to any one of claims 1 to 7.
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