Cell determination method and terminal, network device, storage medium and computer program product

Abstract

Provided are a cell determination method, a terminal, a network device, a storage medium, and a computer program product, comprising: a terminal determining that a first cell at least satisfies the following conditions: the downlink reception timing of the first cell is within a first time range, the first time range being determined at least according to the downlink reception timing of a second cell; and / or the terminal receives a first signal in the first interval, the first signal being related to the first cell; the first interval is determined according to at least a reception timing of a second signal related to a second cell. The mobility performance of the terminal can be improved.

Description

A cell determination method, terminal, network equipment, storage medium, and computer program product. Technical Field

[0001] This application relates to the field of wireless technology, and more particularly to a cell determination method and terminal, network equipment, storage medium, and computer program product. Background Technology

[0002] In low-altitude flight scenarios for unmanned aerial vehicles (UAVs), when neighboring and remote base stations have the same Physical Cell Identifier (PCI), if the downlink signal reception power of the remote base station is much greater than that of the neighboring base station, mobility issues may occur. That is, the UAV terminal synchronizes with the remote base station and attempts to access it, but due to insufficient uplink coverage of the remote base station, the UAV terminal cannot successfully access the remote base station and will abandon neighboring base stations with the same PCI, increasing the probability of the UAV terminal disconnecting from the network. Summary of the Invention

[0003] This application provides a cell determination method, a terminal, network equipment, storage medium, and computer program product. These can improve the mobility performance of the terminal.

[0004] The technical solution of this application is implemented as follows:

[0005] Firstly, this application proposes a cell determination method applied to a terminal, the method comprising:

[0006] The first cell is determined to meet at least the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the second cell;

[0007] And / or, receiving a first signal within a first interval, wherein the first signal is associated with the first cell; the first interval is determined at least according to the timing of receiving a second signal, wherein the second signal is associated with the second cell.

[0008] Secondly, this application proposes a cell determination method, applied to a network device, the method comprising:

[0009] Configure first information, the first information is used by the terminal to determine that the first cell meets at least the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least according to the downlink reception timing of the second cell;

[0010] And / or, configure second information, the second information being used by the terminal to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least according to the reception timing of the second signal, the second signal being related to the second cell.

[0011] Thirdly, this application proposes a terminal, the terminal comprising:

[0012] The determining unit is configured to determine that the first cell at least satisfies the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the second cell;

[0013] A receiving unit is configured to receive a first signal within a first interval, wherein the first signal is associated with a first cell; the first interval is determined at least according to the timing of receiving a second signal, wherein the second signal is associated with a second cell.

[0014] Fourthly, this application provides a network device, the network device comprising:

[0015] A configuration unit is configured to configure first information, which is used by the terminal to determine that the first cell at least meets the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the second cell; and to configure second information, which is used by the terminal to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of the second signal, wherein the second signal is related to the second cell.

[0016] Fifthly, this application proposes a terminal, the terminal comprising: a first processor, a first memory, and a first communication bus; the first communication bus is used to realize the connection and communication between the first processor and the first memory; when the first processor executes the running program stored in the first memory, it implements the cell determination method applied to the terminal described above.

[0017] Sixthly, this application proposes a network device, the network device comprising: a second processor, a second memory, and a second communication bus; the second communication bus is used to realize the connection and communication between the second processor and the second memory; when the second processor executes the running program stored in the second memory, it implements the above-described cell determination method applied to the network device.

[0018] In a seventh aspect, this application proposes a storage medium storing a computer program that, when executed by a first processor, implements the aforementioned cell determination method applied to a terminal; or when executed by a second processor, implements the aforementioned cell determination method applied to a network device.

[0019] Eighthly, this application proposes a computer program product, including a computer program that, when executed by a first processor, implements the aforementioned cell determination method applied to a terminal, or, when executed by a second processor, implements the aforementioned cell determination method applied to a network device.

[0020] This application provides a cell determination method, a terminal, network equipment, storage medium, and computer program product. The method includes: the terminal determining that a first cell at least meets the following conditions: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of a second cell; and / or, the terminal receives a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of a second signal, wherein the second signal is related to the second cell. Using the above implementation, the terminal sets a first time range or a first interval, assuming that the downlink timing deviation between the first cell and the second cell is within the first time range, or receives a first signal related to the first cell within the first interval. Due to the large propagation delay of remote base stations, the received signal corresponding to the remote base station cannot fall within the first time range or the first interval. Therefore, the terminal will not attempt to capture and access the remote base station, but will only attempt to capture and access the neighboring cells of the second cell, improving the terminal's mobility performance and reducing the probability of network disconnection during movement. Attached Figure Description

[0021] Figure 1 is a network diagram of a low-altitude flight scenario of a drone;

[0022] Figure 2 is a comparison diagram of the transmitted signals of a remote base station and a target base station;

[0023] Figure 3 is a flowchart of a cell determination method provided in an embodiment of this application;

[0024] Figure 4 is a schematic diagram of an exemplary cell measurement synchronization process based on a first time range provided in an embodiment of this application;

[0025] Figure 5 is a schematic diagram of an exemplary process of receiving a first signal in a first interval according to an embodiment of this application;

[0026] Figure 6 is a schematic diagram of an exemplary process of receiving a first signal in a first interval provided by an embodiment of this application;

[0027] Figure 7 is a flowchart of a cell determination method provided in an embodiment of this application;

[0028] Figure 8 is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0029] Figure 9 is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0030] Figure 10 is a schematic diagram of the structure of a network device provided in an embodiment of this application;

[0031] Figure 11 is a schematic diagram of the structure of a network device provided in an embodiment of this application. Detailed Implementation

[0032] In order to gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of this application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0034] In the following description, references to "some embodiments" refer to a subset of all possible embodiments. It is understood that "some embodiments" may be the same or different subsets of all possible embodiments and may be combined with each other without conflict. It should also be noted that the terms "first, second, third" used in the embodiments of this application are merely for distinguishing similar objects and do not represent a specific ordering of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0035] In some embodiments, the terminal may be referred to as User Equipment (UE). The terminal may be a Personal Communication Service (PCS) telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), or other similar devices. The terminal device may also be a smartphone, tablet, PDA, Mobile Station (MS), Mobile Terminal, etc. The terminal can communicate with one or more network devices via a Radio Access Network (RAN). For example, the terminal may be a mobile phone (or "cellular" phone) or a computer with terminal equipment. The terminal may also be a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. The terminal can also be a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a drone device, or a terminal in future evolved networks (including but not limited to 6G, 7G, etc.). This application does not limit the implementation of the terminal.

[0036] Network equipment is a device that provides wireless communication functions for terminal devices, including but not limited to: evolved Node Bs (eNBs or e-NodeBs), macro base stations, micro base stations (also known as "small base stations"), pico base stations, base transceiver stations (BTSs), base band units (BBUs), access points (APs), transmission points (TPs), new generation Node Bs (gNodeBs), and base stations in future-evolved networks (including but not limited to 6G, 7G, etc.).

[0037] Currently, during low-altitude drone testing of 5G technology, an issue has been discovered where drones are disconnected from the 5G network due to PCI conflicts. As shown in Figure 1, at location ①, the drone UE (generally referred to as UAV UE) accesses the source base station; the source base station configures the nearest target base station (with the first PCI) as a neighboring cell of the drone UE, and the drone UE performs Radio Resource Management (RRM) measurements based on the first PCI.

[0038] When the drone UE moved to location ②, the signal quality of the source base station deteriorated, and the drone UE should have performed a cell handover. However, the drone UE did not correctly connect to the adjacent target base station. Instead, it attempted to connect to a remote base station with a first PCI (e.g., 60km away). However, due to a failed random access procedure, it was disconnected from the 5G network (the UE ultimately connected to a 4G network), resulting in a mobility problem. In this case, the source base station, target base station, and remote base station were all 5G base stations.

[0039] Analysis suggests that the reasons for the drone UE's disconnection from the 5G network may include: the remote base station serves the sea surface, has high transmit power, a small antenna downtilt angle (close to horizontal), and a long downlink signal propagation distance; while the target base station is a regular ground base station with normal transmit power and a large antenna downtilt angle (pointing towards the ground). Therefore, near location ②, the drone UE mainly receives the sidelobe signal of the target base station, while approximately receiving the main lobe signal of the remote base station, resulting in the downlink signal reception power of the remote base station being much greater than that of the target base station. As shown in Figure 2, since the remote base station and the target base station have the same PCI, the PSS / SSS sequences sent by the remote base station and the target base station are the same. When the drone UE performs neighbor cell measurements, it will receive two sets of primary synchronization signal (PSS) / secondary synchronization signal (SSS) sequences. According to the current UE implementation, the drone UE will capture the PSS / SSS with the highest reception power. As mentioned earlier, in the scenario shown in Figure 1, the downlink signal reception power of the remote base station is much greater than that of the target base station. Therefore, the UAV UE will capture the PSS / SSS of the remote base station and establish time-frequency synchronization with it. This will lead to the following problems:

[0040] 1. The UAV UE reports the reference signal (RS) measurement results of the remote base station to the source base station, instead of the RS measurement results of the target base station, which makes it difficult for the source base station to make an appropriate decision on the timing of cell handover (switching from the source base station to the target base station).

[0041] 2. The remote base station has a long downlink coverage distance but a limited uplink coverage distance, resulting in a mismatch. This causes the UAV UE to fail to complete the cell access procedure after sending the Physical Random Access Channel (PRACH) to the remote base station. Possible reasons include: 1) The remote base station supports a cell coverage radius of less than 60km, such as the PRACH format configured for the remote base station only supporting a small cell coverage radius (e.g., less than 60km); 2) For contention-based random access procedures, when the PRACH / Msg 3 sent by the remote UAV UE and the local ground UAV UE conflict in time-frequency resources, from the perspective of the remote base station, the received power of the signal sent by the remote UAV UE is much lower than that of the ground terminal, causing the remote UAV UE to lose out to the ground terminal in resource conflicts; 3) The remote base station may be based on a non-standard implementation and ignore (i.e., not respond to) the PRACH sent by the UAV UE.

[0042] Based on the above scheme, since the drone UE repeatedly failed to access the remote base station, it considers the PCI unusable and therefore will not attempt to access a neighboring cell with the same PCI. During live network testing, the drone UE happened to find an available 4G base station and accessed the 4G network, thus disconnecting from the 5G network.

[0043] To address the aforementioned mobility issues, this application provides a cell determination method, as shown in Figure 3, applied to a terminal. This method may include:

[0044] S101. Determine that the first cell meets at least the following conditions, including: the downlink reception timing of the first cell is within a first time range, the first time range being determined at least according to the downlink reception timing of the second cell; and / or, a first signal is received within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least according to the reception timing of a second signal, the second signal being related to the second cell.

[0045] It should be noted that the method proposed in this case is not limited to solving the cell handover problem found in the background problem. This solution can also solve other problems such as cell reselection. That is, the application scenario of this case is not limited to the background problem scenario.

[0046] The application scenarios of the cell determination method proposed in this application include, but are not limited to, handover and cell reselection.

[0047] For connected (RRC_CONNECTED) users undergoing cell handover, the second cell can be referred to as the source cell or source base station (such as source gNB / eNB), which is the serving cell currently connected to by the terminal; the first cell can be referred to as the target cell or target base station (such as target gNB / eNB), which is the target cell to which the terminal will be served.

[0048] For cell reselection, the second cell can be called the serving cell, which is the cell the terminal is currently camped on; the first cell can be called the neighboring cell, which is the neighboring cell the terminal can camp on. During cell reselection, idle (RRC_IDLE) and inactive (RRC_INACTIVE) terminals switch from the currently camped second cell to the first cell they can camp on.

[0049] It should be noted that the second cell includes, but is not limited to: the cell currently selected by the terminal (e.g., when the terminal is in an idle state) and the terminal's serving cell (when the terminal is in a connected state). The specific cell can be selected according to the actual situation, and this application embodiment does not impose specific limitations.

[0050] In this embodiment, the process of determining the first cell includes, but is not limited to, at least one of the following: searching for the target cell (cell search), reselecting the target cell (cell reselection), and handover from the serving cell to the target cell (cell handover). The specific selection can be made according to the actual situation, and this embodiment does not impose specific limitations.

[0051] For a terminal to determine a first cell, at least the following conditions must be met: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least according to the scheme of the downlink reception timing of the second cell. The terminal assumes that the downlink reception timing of the first cell is within the first time range, and the first time range is determined at least according to the downlink reception timing of the second cell. If the downlink reception timing of a cell is not within the first time range, the terminal determines that the cell is not the first cell, and / or, if the downlink reception timing of a cell is within the first time range, the terminal determines that the cell is the first cell.

[0052] For example, in a cell handover implementation, if the downlink reception timing of a certain cell is not within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the source cell (second cell), then the terminal determines that the cell is not the target cell of the source cell (second cell).

[0053] If the downlink reception timing of a certain cell is within the first time range, then the terminal determines whether that cell is the target cell of the source cell (second cell). The terminal then combines this with the cell handover conditions to determine whether the cell is a target cell that meets the handover conditions.

[0054] For example, in an embodiment of cell reselection, if the downlink reception timing of a certain cell is not within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the serving cell (second cell), then the terminal determines that the cell is not a neighboring cell that can be camped on.

[0055] If the downlink reception timing of a certain cell is within the first time range, it is determined whether the cell is a neighboring cell. The terminal, in conjunction with the cell reselection conditions, determines whether the cell is a neighboring cell that meets the camping conditions.

[0056] In one embodiment, the downlink reception timing of the first cell can be described as: the reception of the first detected path (in time) of the first downlink frame from the first cell. The English abbreviations for the first cell include, but are not limited to, target cell and neighborhood cell.

[0057] In one embodiment, the downlink reception timing of the second cell can be described as: the reception of the first detected path (in time) of the first downlink frame from the second cell. The English abbreviations for the second cell include, but are not limited to, source cell and serving cell.

[0058] In some embodiments, the terminal determines the frame number of the first downlink frame through protocol agreement or higher-layer configuration. For example, the terminal determines that the frame number of the first downlink frame is 0.

[0059] In this embodiment of the application, the first time range is determined at least based on the downlink reception timing of the second cell, including: the first time range is determined based on the downlink reception timing of the second cell and a first parameter; or, the first time range is determined based on the downlink reception timing of the second cell, the first parameter, and a second parameter.

[0060] The first time range is determined based on the downlink reception timing of the second cell and the first parameter. In one embodiment, the start time of the first time range is t1, and the duration is t. d Where t1 is the downlink reception timing of the second cell, that is, the terminal determines t1 based on the downlink reception timing of the second cell; the terminal determines the duration t of the first time range based on the first parameter. d Duration t d It can also be expressed as duration, and its English expressions include, but are not limited to, duration, period, etc.

[0061] The first time range is determined based on the downlink reception timing, the first parameter, and the second parameter of the second cell. As shown in Figure 4, the start time of the first time range is t2, and the duration is t. d Where t2 = t1 - t a t1 is the downlink reception timing of the second cell, t a This is the advance of the start time of the first time range relative to the downlink reception timing of the second cell. The terminal determines the duration t of the first time range based on the first parameter. d The terminal determines the advance t of the start time of the first time range relative to the downlink reception timing of the second cell based on the second parameter. a .

[0062] In one embodiment, the duration of the first time range is determined based on a first parameter.

[0063] In one embodiment, the start time of the first time range is determined relative to the downlink reception timing of the second cell based on a second parameter.

[0064] In the embodiments of this application, t a It can be a positive number, zero, or negative number; and / or, the advance of the start time of the first time range relative to the downlink reception timing of the second cell (hereinafter referred to as the advance) is a positive number, zero, or negative number.

[0065] When t a When the advance is positive, it indicates that the start time of the first time range is advanced relative to the downlink reception timing of the second cell; when t a Or, if the lead time is negative, it indicates that the start time of the first time range is delayed relative to the downlink reception timing of the second cell; when t a When the lead time is zero, it indicates that the start time of the first time range is aligned with the downlink reception timing of the second cell.

[0066] For example, the cell determination method based on the first time range is shown in Figure 4. The second cell (source base station) sends PSS1, the first cell (target base station) sends PSS2, and the remote base station sends PSS3. The terminal receives PSS2, PSS1, and PSS3 sequentially. Among them, the received power of PSS2 is low and the received power of PSS3 is high. Based on the downlink reception timing t1 of PSS1, the timing is advanced by t... a (Determined based on the second parameter) as the starting time t2 of the first time range, the first time range lasts for t. d (Determined according to the first parameter) The duration is then the end time of the first time range is t3. The PSS2 sent by the target base station falls within the first time range, while the PSS3 sent by the remote base station exceeds the first time range.

[0067] According to the method described above, in the cell handover embodiment shown in Figure 4, if the downlink reception timing of a certain cell is not within the first time range, the terminal determines that the cell is not the target cell of the source cell (second cell). Since the PSS3 sent by the remote base station is not within the first time range, the terminal determines that the remote base station is not the target cell of the source cell (second cell).

[0068] If the downlink reception timing of a certain cell is within the first time range, then the terminal determines whether that cell is the target cell of the source cell (second cell). Since the PSS2 transmitted by the target base station is within the first time range, the terminal determines that the base station transmitting PSS2 is the target cell of the source cell (second cell). The terminal then combines the cell handover conditions to determine whether the base station transmitting PSS2 is a target cell that meets the handover conditions.

[0069] In this application, the "downlink reception timing" includes, but is not limited to, the downlink reception timing of downlink channels or downlink signals such as PSS, SSS, Synchronization Signal / PBCH Block (SSB), PDCCH, PDSCH, CSI-RS, and DMRS. The specific timing can be selected according to the actual situation, and this application does not impose specific limitations. It is evident that the downlink reception timing of the PSS shown in Figure 4 is merely an example of the downlink reception timing described in this application.

[0070] For a scheme involving receiving a first signal within a first interval, wherein the first signal is related to a first cell, the first interval is determined based on the reception timing of a second signal and a first parameter, or based on the reception timing of the second signal, the first parameter, and the second parameter, or based on the reception timing of the second signal, a first offset, and the first parameter; or based on the reception timing of the second signal, the first offset, the first parameter, and the second parameter; wherein the second signal is related to a second cell; wherein the duration of the first interval is determined based on the first parameter; the advance of the start time of the first interval relative to the reception timing of the second signal is determined based on the second parameter; or, the advance of the start time of the first interval relative to the reception timing of the second signal is determined based on the second parameter and the first offset; and the offset of the transmission timing of the first signal relative to the transmission timing of the second signal is determined based on the first offset.

[0071] The first signal is associated with a first cell, and the second signal is associated with a second cell. In some embodiments, the first signal is transmitted by the first cell, and the second signal is transmitted by the second cell.

[0072] The first signal and / or the second signal include, but are not limited to, at least one of SSB, PSS, SSS, CSI-RS, and DMRS. The specific signal can be selected based on the actual situation, and this application does not impose specific limitations on the embodiments.

[0073] It should be noted that PSS and SSS are signals received by the terminal during the cell search process to obtain time and frequency synchronization. PSS, SSS, and PBCH constitute an SSB. An SSB consists of four Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0074] In some embodiments of this application, the timing of receiving the first signal may also be referred to as the downlink receiving timing of the first cell, and / or the timing of receiving the second signal may also be referred to as the downlink receiving timing of the second cell.

[0075] For example, both the first and second signals are SSB, or both the first and second signals are PSS, or both the first and second signals are SSS.

[0076] The first interval begins at time t1; or, the first interval begins at time t1-t. a Alternatively, the starting time of the first interval is t1+Ot. a Alternatively, the starting time of the first interval is t1+0;

[0077] The duration of the first interval is t. d .

[0078] Where t1 is the timing for receiving the second signal, t a O is the advance of the start time of the first interval relative to the reception timing of the second signal, and 0 is the offset of the transmission timing of the first signal relative to the transmission timing of the second signal.

[0079] The terminal determines the duration t of the first interval based on the first parameter. d The terminal determines the advance t of the start time of the first interval relative to the reception timing of the second signal based on the second parameter. a The terminal determines the offset O of the transmission timing of the first signal relative to the transmission timing of the second signal based on the first offset.

[0080] In the embodiments of this application, t a It can be a positive number, zero, or negative number; or, the advance of the start time of the first interval relative to the reception timing of the second signal can be a positive number, zero, or negative number.

[0081] In one embodiment, the first interval is determined based on the reception timing of the second signal and a first parameter, or based on the reception timing of the second signal, the first parameter, and a second parameter; wherein the duration of the first interval is determined based on the first parameter; and the advance of the start time of the first interval relative to the reception timing of the second signal is determined based on the second parameter.

[0082] In one embodiment of this application, the starting time of the first interval is t1-t. a Where t1 is the receiving timing of the second signal, and the advance t of the start time of the first interval relative to the receiving timing of the second signal is determined according to the second parameter. a That is, t before the terminal receives the second signal in the second cell. a Begin detecting the first signal.

[0083] For example, the process of receiving the first signal within the first interval is shown in Figure 5. The source base station (second cell) sends the second signal, the target base station (first cell) sends the first signal, and the remote base station sends the third signal. Since the third signal sent by the remote base station is useless to this terminal, it can also be called a useless signal. The terminal receives the first signal, the second signal, and the third signal sequentially. The first signal has a low received power, and the third signal has a high received power. Based on the downlink reception timing t1 of the second signal, the signal is received t in advance. a (The second parameter) serves as the starting time t2 of the first interval, and the first interval lasts for t seconds. dIf the duration of (first parameter) is given, then the termination time of the first interval is t3. It can be seen that within the first interval, the first signal (useful signal) sent by the target base station can be received, but the third signal (i.e., useless signal) sent by the remote base station cannot be received. Therefore, this scheme compresses the signal reception range, ensuring that the terminal can only receive the first signal (useful signal) sent by the first cell (target cell), and will not receive the useless signal (interference signal) sent by the remote base station. Thus, it can effectively avoid the interference problem of useless signals sent by the remote base station on the reception, demodulation, and decoding of useful signals, improving the terminal's mobility performance.

[0084] In another embodiment, the first interval is determined based on the reception timing of the second signal, the first offset, and the first parameter, or based on the reception timing of the second signal, the first offset, the first parameter, and the second parameter; wherein, the offset of the transmission timing of the first signal relative to the transmission timing of the second signal is determined based on the first offset.

[0085] In this embodiment of the application, the first offset is the offset of the transmission timing of the first signal relative to the transmission timing of the second signal, that is, compared with the second cell transmitting the second signal, the first cell transmits the first signal after the first offset time unit.

[0086] In this embodiment of the application, the second parameter represents the advance of the reception timing of the first interval relative to the second signal of the second cell after a certain offset, wherein the certain offset is determined according to the first offset parameter.

[0087] In this embodiment of the application, the starting time of the first interval is t1+OT. TA , where O is determined based on the first offset.

[0088] For example, referring to Figure 6, the process of receiving the first signal within the first interval is as follows: the source base station (second cell) sends the second signal, and the target base station (first cell) and the remote base station send the first signal and the third signal (useless signal) respectively with a delay of O (first offset value). The terminal receives the second signal, the first signal, and the third signal in sequence. Among them, the received power of the first signal is small and the received power of the third signal is large. The downlink reception timing of the second signal is delayed by O to obtain t1. Based on t1, the signal is received t1 in advance. a (The second parameter) serves as the starting time t2 of the first interval, and the first interval lasts for t seconds. dIf the duration of (first parameter) is given, then the termination time of the first interval is t3. It can be seen that within the first interval, the first signal (useful signal) sent by the target base station can be received, but the third signal (i.e., useless signal) sent by the remote base station cannot be received. Therefore, this scheme compresses the signal reception range, ensuring that the terminal can only receive the first signal (useful signal) sent by the first cell (target cell) and will not receive the useless signal (interference signal) sent by the remote base station. Thus, it can effectively avoid the interference problem of useless signals sent by the remote base station on the reception, demodulation, and decoding of useful signals, improving the terminal's mobility performance.

[0089] In the embodiments of this application, O is a positive number, zero, or a negative number; or, the first offset is a positive number, zero, or a negative number.

[0090] For the two schemes mentioned above, the terminal needs to determine a first parameter and / or a second parameter. Specifically, the terminal determines at least one of the following based on any one of the following methods: system messages, higher-layer configurations, preset parameters, and pre-agreed terms: a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

[0091] It should be noted that the terminal can receive the first parameter and / or the second parameter sent by the network device according to any of the following methods: system messages, higher-level configuration, and pre-agreed terms.

[0092] It should be noted that for cell reselection operations of idle users, the terminal determines the neighboring cell (i.e., the first cell) information through system messages. For cell handover operations of connected users, the terminal determines the target cell (i.e., the first cell) information through system messages or higher-level configuration.

[0093] It should be noted that if the second parameter is not configured, the terminal will determine that the second parameter is zero, or some other preset parameter. For example, the length of the cyclic prefix (CP).

[0094] It should be noted that if the first parameter is not configured, the terminal determines that the first parameter is a preset parameter, which can be determined based on a preset value. For example, the length of 1 / N OFDM symbols is a preset parameter, where N is a positive integer.

[0095] In the embodiments of this application, the first parameter and / or the second parameter are related to at least one first cell, and the first parameter and the second parameter can be determined based on at least one of the following methods:

[0096] MeasConfig information elements (IE) include configuration information related to the first parameter and / or the second parameter;

[0097] MeasObject-related IEs include configuration information related to the first parameter and / or the second parameter;

[0098] MeasConfig IE includes at least one first object, which includes configuration information related to the first parameter and / or the second parameter.

[0099] In one embodiment, the first parameter and / or the second parameter are configured within the MeasConfig IE and are related to all measurement objects (MeasObjects). For example,

[0100] MeasConfig::=SEQUENCE{

[0101] measObjectToRemoveList MeasObjectToRemoveList OPTIONAL,--Need N

[0102] measObjectToAddModList MeasObjectToAddModList OPTIONAL,--Need N

[0103] First parameter OPTIONAL

[0104] The second parameter OPTIONAL

[0105] }

[0106] In another embodiment, the first parameter and / or the second parameter are configured within the MeasObject-related IE and are associated with the configured measurement object. For example:

[0107] MeasObjectNR::=SEQUENCE{

[0108] referenceSignalConfig ReferenceSignalConfig,

[0109] First parameter OPTIONAL

[0110] The second parameter OPTIONAL

[0111] }

[0112] In another embodiment, a first object IE configures a first parameter and / or a second parameter, as well as a measurement object associated with the first parameter and / or the second parameter. Optionally, the MeasConfig IE includes at least one first object IE. For example:

[0113] Example 1:

[0114] MeasConfig::=SEQUENCE{

[0115] measObjectToRemoveList MeasObjectToRemoveList OPTIONAL,--Need N

[0116] measObjectToAddModList MeasObjectToAddModList OPTIONAL,--Need N

[0117] First object List SEQUENCE(SIZE(1..X)) OF First object OPTIONAL

[0118] The second object is List SEQUENCE(SIZE(1..X))OF the second object OPTIONAL.

[0119] }

[0120] First object ::= SEQUENCE{

[0121] measObjectTList SEQUENCE(SIZE(1..Y))OF MeasObjectNR,

[0122] First parameter

[0123] }

[0124] Second object ::= SEQUENCE{

[0125] measObjectTList SEQUENCE(SIZE(1..Y))OF MeasObjectNR,

[0126] Second parameter

[0127] }

[0128] Example 2:

[0129] MeasConfig::=SEQUENCE{

[0130] measObjectToRemoveList MeasObjectToRemoveList OPTIONAL,--Need N

[0131] measObjectToAddModList OPTIONAL, --Need N third object List SEQUENCE(SIZE(1..X))OF third object OPTIONAL

[0132] }

[0133] Third object ::= SEQUENCE{

[0134] measObjectTList SEQUENCE(SIZE(1..Y))OF MeasObjectNR,

[0135] First parameter OPTIONAL

[0136] The second parameter is OPTIONAL.

[0137] }

[0138] Optionally, the terminal determines the second parameter based on the configuration parameters in the measurement gap configuration. For example, the terminal determines the second parameter based on the GAP timing advance (mgta) field in the measurement gap configuration (GapConfig) IE. For example, the second parameter is determined to be equal to mgrp.

[0139] GapConfig::=SEQUENCE{

[0140] gapOffset INTEGER(0..159),

[0141] mgl ENUMERATED{ms1dot5,ms3,ms3dot5,ms4,ms5dot5,ms6},

[0142] mgrp ENUMERATED{ms20,ms40,ms80,ms160},

[0143] mgta ENUMERATED{ms0,ms0dot25,ms0dot5},

[0144] }

[0145] It should be noted that the value mgta is the measurement interval timing advance in milliseconds. The applicability of the measurement interval timing advance is determined with reference to Section 9.1.2 of TS 38.133, or, if ncsgInd exists, with reference to Section 9.11 of TS 38.133.

[0146] For the aforementioned scheme of receiving a first signal within a first interval, wherein the first signal is related to a first cell, the terminal needs to determine a first offset. The terminal determines the first offset using any one of the following methods: system messages, higher-layer configuration, preset parameters, and pre-agreed terms.

[0147] Optionally, the terminal determines the first offset based on one or more configuration parameters among the synchronization signal block SSB timing deviation configuration, measurement gap configuration, and SSB measurement timing configuration.

[0148] Regarding the SSB timing deviation configuration, the following explanation is provided:

[0149] For the Non-Cell Defining (NCD)-SSB scenario, the SSB timing offset between the NCD-SSB and the Serving Cell Defining (CD)-SSB is defined. The value range is several enumerated variables (0ms default value, 5ms, 10ms, 20ms, 40ms, 80ms, 160ms). SSB-TimeOffset = X ms means that the first burst of the NCD-SSB is sent X ms after the first symbol of the CD-SSB sent after the first symbol of the Serving Cell's System Frame Number (SFN) = 0.

[0150] For example, a value of 5ms indicates that the first burst of the NCD-SSB is transmitted 5ms later than the first burst of the CD-SSB transmitted after the first symbol of the serving cell's SFN=0; a value of 10ms indicates that the first burst of the NCD-SSB is transmitted 10ms later than the first burst of the CD-SSB transmitted after the first symbol of the serving cell's SFN=0, and so on. If this field is not present, the terminal considers the time offset between the first burst of the CD-SSB transmitted in the serving cell and the first burst of the transmitted NCD-SSB to be zero. For lightweight (Reduced Capability, RedCap) terminals in Time Division Duplex (TDD) cells, the network configures this time offset to be an integer multiple of the periodicity of the serving cell's CD-SSB.

[0151] For satellite communication scenarios, the SSB timing deviation between the source satellite and the target satellite at the uplink timing synchronization reference point is defined, with the unit being subframes.

[0152] It should be noted that the first offset can be configured by configuring the SSB timing offset. The terminal can determine the first offset by configuring the SSB timing offset.

[0153] Regarding the measurement gap, the following explanations are provided:

[0154] When the terminal capability does not support simultaneous measurement of serving cell services or inter-frequency / inter-system measurements, the network device is configured to perform inter-frequency / inter-system measurements during measurement intervals.

[0155] The measurement gap configuration includes: the repetition period of the measurement gap (in milliseconds); the temporal offset of the gap pattern within the measurement gap (gapOffset); the length of the measurement gap (mgl) (in milliseconds); and the timing advance of the measurement gap (mgta) (in milliseconds). That is, for the gap timing, the terminal will start the measurement mgta milliseconds in advance.

[0156] It should be noted that the first offset can be configured by configuring gapOffset, and the terminal can determine the first offset based on the configured gapOffset; furthermore, the second parameter can be configured by configuring mgta, and the terminal can determine the second parameter based on the configured mgta.

[0157] The measurement timing configuration specifies the timing at which the terminal measures the SSB. The first offset can be configured by setting the measurement timing configuration, and the terminal determines the first offset based on the configured measurement timing configuration.

[0158] Understandably, the terminal sets a first time range or first interval, assuming that the downlink timing deviation between the first cell and the second cell is within the first time range, or that it receives the first signal related to the first cell within the first interval. Due to the large propagation delay of remote base stations, the received signal corresponding to the remote base station cannot fall within the first time range or first interval. Therefore, the terminal will not attempt to capture and access the remote base station, but will only attempt to capture and access the neighboring cell of the second cell, avoiding network disconnection and improving the terminal's mobility performance.

[0159] Based on the above embodiments, this application also proposes a cell determination method, as shown in Figure 7, applied to a network device, the method comprising:

[0160] S201. Configure first information, which is used by the terminal to determine that the first cell meets at least the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least according to the downlink reception timing of the second cell; configure second information, which is used by the terminal to receive a first signal in a first interval, wherein the first signal is related to the first cell; the first interval is determined at least according to the reception timing of the second signal, and the second signal is related to the second cell.

[0161] In this embodiment, the first information includes: a first parameter, or a first parameter and a second parameter; the first time range is determined at least according to the downlink reception timing of the second cell, and the terminal assumes that the downlink reception timing of the first cell is within the first time range, which is determined at least according to the downlink reception timing of the second cell. If the downlink reception timing of a certain cell is not within the first time range, the terminal determines that the cell is not the first cell, and / or, if the downlink reception timing of a certain cell is within the first time range, the terminal determines that the cell is the first cell.

[0162] In this embodiment of the application, the first time range is determined at least based on the downlink reception timing of the second cell, including: the first time range is determined based on the downlink reception timing of the second cell and a first parameter; or, the first time range is determined based on the downlink reception timing of the second cell, the first parameter, and a second parameter.

[0163] The first time range is determined based on the downlink reception timing of the second cell and the first parameter. In one embodiment, the start time of the first time range is t1, and the duration is t. d Where t1 is the downlink reception timing of the second cell, that is, the terminal determines t1 based on the downlink reception timing of the second cell; the terminal determines the duration t of the first time range based on the first parameter. d Duration t d It can also be expressed as duration, and its English expressions include, but are not limited to, duration, period, etc.

[0164] The first time range is determined based on the downlink reception timing, the first parameter, and the second parameter of the second cell. As shown in Figure 4, the start time of the first time range is t2, and the duration is t. d Where t2 = t1 - t a t1 is the downlink reception timing of the second cell, t a This is the advance of the start time of the first time range relative to the downlink reception timing of the second cell. The terminal determines the duration t of the first time range based on the first parameter. d The terminal determines the advance t of the start time of the first time range relative to the downlink reception timing of the second cell based on the second parameter. a .

[0165] In this embodiment, the second information includes: a first parameter, or a first parameter and a second parameter, or a first parameter and a first offset, or a first parameter, a second parameter, and a first offset; the first interval is determined at least based on the reception timing of the second signal, including: the first interval is determined based on the reception timing of the second signal and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first parameter, and the second parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, the first parameter, and the second parameter. The second signal is related to a second cell; the duration of the first interval is determined based on the first parameter; the advance of the start time of the first interval relative to the reception timing of the second signal is determined based on the second parameter; or, the advance of the start time of the first interval relative to the reception timing of the second signal is determined based on the second parameter and the first offset; the offset of the transmission timing of the first signal relative to the transmission timing of the second signal is determined based on the first offset.

[0166] The first signal is associated with a first cell, and the second signal is associated with a second cell. In some embodiments, the first signal is transmitted by the first cell, and the second signal is transmitted by the second cell.

[0167] The first signal and / or the second signal include, but are not limited to, at least one of SSB, PSS, SSS, CSI-RS, and DMRS. The specific signal can be selected based on the actual situation, and this application does not impose specific limitations on the embodiments.

[0168] In some embodiments of this application, the timing of receiving the first signal may also be referred to as the downlink receiving timing of the first cell, and / or the timing of receiving the second signal may also be referred to as the downlink receiving timing of the second cell.

[0169] It should be noted that the starting time of the first interval is t1, or t1-t. a , or t1+Ot a , or t1+O; the duration of the first interval is t. d Where t1 is the timing for receiving the second signal, t d Determined based on the first parameter; t a O is the advance of the start time of the first interval relative to the reception timing of the second signal, determined according to the second parameter; O is the offset of the transmission timing of the first signal relative to the transmission timing of the second signal, determined according to the first offset.

[0170] In this embodiment, the terminal determines the duration t of the first interval based on the first parameter. d The terminal determines the advance t of the start time of the first interval relative to the reception timing of the second signal based on the second parameter. aThe terminal determines the offset O of the transmission timing of the first signal relative to the transmission timing of the second signal based on the first offset.

[0171] In the embodiments of this application, the first signal includes, but is not limited to, at least one of: SSB, PSS, SSS, CSI-RS, and DMRS.

[0172] In this embodiment of the application, the network device configures at least one of the following through any one of the following methods: system messages, higher-level configuration, and pre-agreed terms: a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

[0173] Specifically, the first parameter and / or the second parameter can be configured using any of the following methods:

[0174] MeasConfig IE includes configuration information related to the first parameter and / or the second parameter;

[0175] MeasObject-related IEs include configuration information related to the first parameter and / or the second parameter;

[0176] MeasConfig IE includes at least one first object, which includes configuration information related to the first parameter and / or the second parameter.

[0177] It should be noted that t a It can be a positive number, zero, or negative number; O can be a positive number, zero, or negative number; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is a positive number, zero, or negative number; the advance of the start time of the first interval relative to the reception timing of the second signal is a positive number, zero, or negative number; the first offset is a positive number, zero, or negative number.

[0178] Specifically, the second parameter is determined based on the configuration parameters in the measurement gap configuration; the first offset is configured using one or more configuration parameters from the SSB timing deviation configuration, measurement gap configuration, and SSB measurement timing configuration.

[0179] It should be noted that S201 is the network-side step corresponding to S101. For a detailed description of S201, please refer to the description of S101, which will not be repeated here.

[0180] Understandably, network devices configure first and / or second information to enable the terminal to set a first time range or a first interval, assuming that the downlink timing deviation between the first cell and the second cell is within the first time range, or that the terminal receives a first signal related to the first cell within the first interval. Due to the large propagation delay of remote base stations, the received signal corresponding to the remote base station cannot fall within the first time range or the first interval. Therefore, the terminal will not attempt to capture and access the remote base station, but will only attempt to capture and access the neighboring cell of the second cell, improving the terminal's mobility performance and reducing the probability of network disconnection during movement.

[0181] This application provides a terminal. As shown in FIG8, the terminal 1 includes:

[0182] The determining unit 10 is used to determine that the first cell at least meets the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the second cell;

[0183] The receiving unit 11 is configured to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least according to the timing of receiving a second signal, wherein the second signal is related to the second cell.

[0184] Optionally, the determining unit 10 is further configured to: determine the first time range based on the downlink reception timing and the first parameter of the second cell; or, determine the first time range based on the downlink reception timing, the first parameter, and the second parameter of the second cell; determine the first interval based on the reception timing and the first parameter of the second signal; or, determine the first interval based on the reception timing, the first parameter, and the second parameter of the second signal; or, determine the first interval based on the reception timing, the first offset, the first parameter, and the second parameter of the second signal; or, determine the first interval based on the reception timing, the first offset, the first parameter, and the second parameter of the second signal.

[0185] Optionally, the starting time of the first time range is t1 or t1-t. a The duration of the first time range is t. d Where t1 is the downlink reception timing of the second cell, t d Determined based on the first parameter; t a The time is determined based on the second parameter; or, the starting time of the first interval is t1, or t1-t. a , or t1+Ot a , or t1+O; where the duration of the first interval is t. d Where t1 is the timing for receiving the second signal, t d Determined based on the first parameter; ta O is determined based on the second parameter; O is determined based on the first offset.

[0186] Optionally, the determining unit 10 is further configured to: determine the duration of the first time range or the duration of the first interval based on the first parameter; determine the advance of the start time of the first time range relative to the downlink reception timing of the second cell based on the second parameter; or determine the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter; or determine the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter and the first offset; and determine the offset of the transmission timing of the first signal relative to the transmission timing of the second signal based on the first offset.

[0187] Optionally, the determining unit 10 is further configured to determine at least one of the following based on any one of system messages, high-level configurations, preset parameters, and pre-agreed agreements: a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

[0188] Optionally, the MeasConfig IE includes configuration information related to the first parameter and / or the second parameter; the MeasObject related IE includes configuration information related to the first parameter and / or the second parameter; the MeasConfig IE includes at least one first object, which includes configuration information related to the first parameter and / or the second parameter.

[0189] Optional, t a The value is positive, zero, or negative; 0 is positive, zero, or negative; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is positive, zero, or negative; the advance of the start time of the first interval relative to the reception timing of the second signal is positive, zero, or negative; the first offset is positive, zero, or negative.

[0190] Optionally, the determining unit 10 is further configured to determine the second parameter based on the configuration parameters in the measurement gap configuration; and to determine the first offset based on one or more configuration parameters among the synchronization signal block SSB timing deviation configuration, measurement gap configuration, and SSB measurement timing configuration.

[0191] Optionally, the first signal includes, but is not limited to, at least one of: SSB, primary synchronization signal PSS, secondary synchronization signal SSS, CSI-RS, and DMRS.

[0192] This application provides a terminal that determines that a first cell at least meets the following conditions: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of a second cell; or, a first signal is received within a first interval, wherein the first signal is related to the first cell; and the first interval is determined at least based on the reception timing of a second signal, wherein the second signal is related to the second cell. Therefore, the terminal proposed in this embodiment sets a first time range or a first interval, assuming that the downlink timing deviation between the first cell and the second cell is within the first time range, or receives a first signal related to the first cell within the first interval. Due to the large propagation delay of remote base stations, the received signal corresponding to the remote base station cannot fall within the first time range or the first interval. Therefore, the terminal will not attempt to capture and access the remote base station, but will only attempt to capture and access the neighboring cells of the second cell, improving the terminal's mobility performance and reducing the probability of network disconnection during movement.

[0193] Figure 9 is a schematic diagram of the composition structure of a terminal 1 provided in an embodiment of this application. In practical applications, based on the same disclosed concept of the above embodiments, as shown in Figure 9, the terminal 1 of this embodiment includes: a first processor 12, a first memory 13 and a first communication bus 14.

[0194] The first processor 12 described above can be at least one of the following: Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), CPU, controller, microcontroller, and microprocessor. It is understood that, for different devices, the electronic device used to implement the above processor function can also be other types, and this embodiment does not impose specific limitations.

[0195] In this embodiment, the first communication bus 14 is used to establish a connection and communication between the first processor 12 and the first memory 13; when the first processor 12 executes the running program stored in the first memory 13, it implements the following cell determination method:

[0196] The first cell is determined to satisfy at least the following conditions: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the second cell; or, a first signal is received within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of a second signal, wherein the second signal is related to the second cell.

[0197] Furthermore, the first processor 12 is also configured to: determine the first time range based on the downlink reception timing of the second cell and the first parameter; or, determine the first time range based on the downlink reception timing of the second cell, the first parameter, and the second parameter; determine the first interval based on the reception timing of the second signal and the first parameter; or, determine the first interval based on the reception timing of the second signal, the first parameter, and the second parameter; or, determine the first interval based on the reception timing of the second signal, the first offset, and the first parameter; or, determine the first interval based on the reception timing of the second signal, the first offset, the first parameter, and the second parameter.

[0198] Furthermore, the starting time of the first time range is t1 or t1-t. a The duration of the first time range is t. d Where t1 is the downlink reception timing of the second cell, t d Determined based on the first parameter; t a The time is determined based on the second parameter; or, the starting time of the first interval is t1, or t1-t. a , or t1+Ot a , or t1+O; where the duration of the first interval is t. d Where t1 is the timing for receiving the second signal, t d Determined based on the first parameter; t a O is determined based on the second parameter; O is determined based on the first offset.

[0199] Furthermore, the first processor 12 is also configured to: determine the duration of the first time range or the duration of the first interval based on the first parameter; determine the advance of the start time of the first time range relative to the downlink reception timing of the second cell based on the second parameter; or determine the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter; or determine the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter and the first offset; and determine the offset of the transmission timing of the first signal relative to the transmission timing of the second signal based on the first offset.

[0200] Furthermore, the aforementioned first processor 12 is also configured to determine at least one of the following based on any one of the following methods: system messages, high-level configurations, preset parameters, and pre-agreed upon agreements:

[0201] The parameters include a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

[0202] Furthermore, the MeasConfig IE includes configuration information related to the first parameter and / or the second parameter; the MeasObject related IE includes configuration information related to the first parameter and / or the second parameter; the MeasConfig IE includes at least one first object, the first object including configuration information related to the first parameter and / or the second parameter.

[0203] Furthermore, t a The value is positive, zero, or negative; 0 is positive, zero, or negative; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is positive, zero, or negative; the advance of the start time of the first interval relative to the reception timing of the second signal is positive, zero, or negative; the first offset is positive, zero, or negative.

[0204] Furthermore, the first processor 12 is also configured to determine the second parameter based on the configuration parameters in the measurement gap configuration; and to determine the first offset based on one or more configuration parameters among the synchronization signal block SSB timing deviation configuration, measurement gap configuration, and SSB measurement timing configuration.

[0205] Furthermore, the first signal includes, but is not limited to, at least one of: SSB, primary synchronization signal PSS, secondary synchronization signal SSS, CSI-RS, and DMRS.

[0206] This application provides a network device. As shown in FIG10, the network device 2 includes:

[0207] Configuration unit 20 is configured to configure first information, which is used by the terminal to determine that the first cell at least meets the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least according to the downlink reception timing of the second cell; and to configure second information, which is used by the terminal to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least according to the reception timing of the second signal, wherein the second signal is related to the second cell.

[0208] Optionally, the first information includes: a first parameter, or the first parameter and a second parameter; the second information includes: the first parameter, or the first parameter and a second parameter, or the first parameter and a first offset, or the first parameter, the second parameter, and the first offset; the first time range is determined based on the downlink reception timing of the second cell and the first parameter; or, the first time range is determined based on the downlink reception timing of the second cell, the first parameter, and the second parameter; the first interval is determined based on the reception timing of the second signal and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first parameter, and the second parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, the first parameter, and the second parameter.

[0209] Optionally, the starting time of the first time range is t1 or t1-t. a The duration of the first time range is t. d Where t1 is the downlink reception timing of the second cell, t d Determined based on the first parameter; t a The starting time of the first interval is determined based on the second parameter; it is either t1 or t1-t. a , or t1+Ot a , or t1+O; where the duration of the first interval is t. d Where t1 is the timing for receiving the second signal, t d Determined based on the first parameter; t a O is determined based on the second parameter; O is determined based on the first offset.

[0210] Optionally, the duration of the first time range or the duration of the first interval is determined according to the first parameter; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is determined according to the second parameter; or, the advance of the start time of the first interval relative to the reception timing of the second signal is determined according to the second parameter; or, the advance of the start time of the first interval relative to the reception timing of the second signal is determined according to the second parameter and the first offset; and the offset of the transmission timing of the first signal relative to the transmission timing of the second signal is determined according to the first offset.

[0211] Optionally, the configuration unit 20 is further configured to configure at least one of the following through any one of system messages, high-level configuration, and pre-agreed methods: a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

[0212] Optionally, the MeasConfig IE includes configuration information related to the first parameter and / or the second parameter; the MeasObject related IE includes configuration information related to the first parameter and / or the second parameter; the MeasConfig IE includes at least one first object, which includes configuration information related to the first parameter and / or the second parameter.

[0213] Optional, t a The value is positive, zero, or negative; 0 is positive, zero, or negative; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is positive, zero, or negative; the advance of the start time of the first interval relative to the reception timing of the second signal is positive, zero, or negative; the first offset is positive, zero, or negative.

[0214] Optionally, the configuration unit 20 is further configured to determine the second parameter according to the configuration parameters in the measurement gap configuration; and configure the first offset through one or more configuration parameters of SSB timing deviation configuration, measurement gap configuration, and SSB measurement timing configuration.

[0215] Optionally, the first signal includes, but is not limited to, at least one of: SSB, PSS, SSS, CSI-RS, and DMRS.

[0216] This application provides a network device that configures first information for a terminal to determine that a first cell at least meets the following conditions: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of a second cell; and configures second information for the terminal to receive a first signal within a first interval, wherein the first signal is related to the first cell; and the first interval is determined at least based on the reception timing of a second signal, wherein the second signal is related to the second cell. Therefore, the network device proposed in this embodiment configures the first and / or second information to enable the terminal to set a first time range or a first interval, assuming that the downlink timing deviation between the first and second cells is within the first time range, or to receive a first signal related to the first cell within the first interval. Due to the large propagation delay of remote base stations, the received signal corresponding to the remote base station cannot fall within the first time range or the first interval. Therefore, the terminal will not attempt to capture and access the remote base station, but will only attempt to capture and access the neighboring cells of the second cell, improving the terminal's mobility performance and reducing the probability of network disconnection during movement.

[0217] Figure 11 is a schematic diagram of the composition structure of a network device 2 provided in an embodiment of this application. In practical applications, based on the same disclosed concept of the above embodiments, as shown in Figure 11, the network device 2 of this embodiment includes: a second processor 21, a second memory 22 and a second communication bus 23.

[0218] The second processor 21 described above can be at least one of ASIC, DSP, DSPD, PLD, FPGA, CPU, controller, microcontroller, and microprocessor. It is understood that, for different devices, the electronic device used to implement the above processor function can also be other types, and this embodiment does not impose specific limitations.

[0219] In this embodiment, the second communication bus 23 is used to establish communication between the second processor 21 and the second memory 22; when the second processor 21 executes the running program stored in the second memory 22, it implements the following cell determination method:

[0220] Configure first information, which is used by the terminal to determine that the first cell at least meets the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of the second cell; configure second information, which is used by the terminal to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of the second signal, wherein the second signal is related to the second cell.

[0221] Further, the first information includes: a first parameter, or the first parameter and a second parameter; the second information includes: a first parameter, or the first parameter and a second parameter, or the first parameter and a first offset, or the first parameter, the second parameter, and a first offset.

[0222] The first time range is determined based on the downlink reception timing of the second cell and the first parameter; or, the first time range is determined based on the downlink reception timing of the second cell, the first parameter, and the second parameter; the first interval is determined based on the reception timing of the second signal and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first parameter, and the second parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, the first parameter, and the second parameter.

[0223] Furthermore, the starting time of the first time range is t1 or t1-t. a The duration of the first time range is t. d Where t1 is the downlink reception timing of the second cell, td Determined based on the first parameter; t a The starting time of the first interval is determined based on the second parameter; it is either t1 or t1-t. a , or t1+Ot a , or t1+O; where the duration of the first interval is t. d Where t1 is the timing for receiving the second signal, t d Determined based on the first parameter; t a O is determined based on the second parameter; O is determined based on the first offset.

[0224] Further, the duration of the first time range or the duration of the first interval is determined according to the first parameter; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is determined according to the second parameter; or, the advance of the start time of the first interval relative to the reception timing of the second signal is determined according to the second parameter; or, the advance of the start time of the first interval relative to the reception timing of the second signal is determined according to the second parameter and the first offset; and the offset of the transmission timing of the first signal relative to the transmission timing of the second signal is determined according to the first offset.

[0225] Furthermore, the aforementioned second processor 21 is also configured to configure at least one of the following through any one of system messages, high-level configuration, and pre-agreed methods: a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

[0226] Furthermore, the MeasConfig IE includes configuration information related to the first parameter and / or the second parameter; the MeasObject related IE includes configuration information related to the first parameter and / or the second parameter; the MeasConfig IE includes at least one first object, the first object including configuration information related to the first parameter and / or the second parameter.

[0227] Furthermore, t a The value is positive, zero, or negative; 0 is positive, zero, or negative; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is positive, zero, or negative; the advance of the start time of the first interval relative to the reception timing of the second signal is positive, zero, or negative; the first offset is positive, zero, or negative.

[0228] Furthermore, the second processor 21 is also configured to determine the second parameter based on the configuration parameters in the measurement gap configuration; and to configure the first offset using one or more configuration parameters from the SSB timing deviation configuration, the measurement gap configuration, and the SSB measurement timing configuration.

[0229] Furthermore, the first signal includes, but is not limited to, at least one of: SSB, PSS, SSS, CSI-RS, and DMRS.

[0230] This application provides a storage medium storing a computer program thereon. The computer-readable storage medium stores one or more programs, which can be executed by one or more processors. The computer program implements the cell determination method described above.

[0231] Based on the above embodiments, this application provides a computer program product, including a computer program that can be executed by one or more processors, and the computer program implements the cell determination method described above.

[0232] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0233] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the related technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause an image display device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this disclosure.

[0234] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application.

Claims

1. A method for determining a cell, characterized in that, Applied to a terminal, the method includes: determining that a first cell satisfies at least the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of a second cell; and / or, receiving a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of a second signal, wherein the second signal is related to the second cell.

2. The method according to claim 1, characterized in that, The method includes any of the following: the first time range is determined at least based on the downlink reception timing of the second cell, including: the first time range is determined based on the downlink reception timing of the second cell and a first parameter; or, the first time range is determined based on the downlink reception timing of the second cell, the first parameter, and a second parameter; the first interval is determined at least based on the reception timing of the second signal, including: the first interval is determined based on the reception timing of the second signal and a first parameter; or, the first interval is determined based on the reception timing of the second signal, the first parameter, and a second parameter; or, the first interval is determined based on the reception timing of the second signal, a first offset, and a first parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, the first parameter, and a second parameter.

3. The method according to claim 2, characterized in that, This includes any of the following methods: the starting time of the first time range is t1 or t1-t. a The duration of the first time range is t. d Where t1 is the downlink reception timing of the second cell, t d Determined based on the first parameter; t a The starting time of the first interval is determined based on the second parameter; it is either t1 or t1-t. a , or t1+Ot a , or t1+O; where the duration of the first interval is t. d Where t1 is the timing for receiving the second signal, t d Determined based on the first parameter; t a O is determined based on the second parameter; O is determined based on the first offset.

4. The method according to claim 2, characterized in that, This includes any of the following methods: determining the duration of the first time range or the duration of the first interval based on the first parameter; determining the advance of the start time of the first time range relative to the downlink reception timing of the second cell based on the second parameter; or determining the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter; or determining the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter and the first offset; and determining the offset of the transmission timing of the first signal relative to the transmission timing of the second signal based on the first offset.

5. The method according to claim 2, characterized in that, The method further includes determining at least one of the following based on any one of system messages, high-level configurations, preset parameters, and pre-agreed terms: a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

6. The method according to claim 5, characterized in that, The method includes any of the following: the Measurement Configuration MeasConfig information element IE includes configuration information related to the first parameter and / or the second parameter; the Measurement Object MeasObject related IE includes configuration information related to the first parameter and / or the second parameter; the Measurement Configuration MeasConfig IE includes at least one first object, the first object including configuration information related to the first parameter and / or the second parameter.

7. The method according to claim 3 or 4, characterized in that, Including any of the following methods: t a The value is positive, zero, or negative; 0 is positive, zero, or negative; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is positive, zero, or negative; the advance of the start time of the first interval relative to the reception timing of the second signal is positive, zero, or negative; the first offset is positive, zero, or negative.

8. The method according to claim 2, characterized in that, The method includes any of the following: determining the second parameter based on the configuration parameters in the measurement gap configuration; determining the first offset based on one or more configuration parameters of the synchronization signal block SSB timing deviation configuration, the measurement gap configuration, and the SSB measurement timing configuration.

9. The method according to claim 1, characterized in that, The first signal includes, but is not limited to, at least one of: SSB, primary synchronization signal PSS, secondary synchronization signal SSS, channel state information reference signal CSI-RS, and demodulation reference signal DMRS.

10. A method for determining a cell, characterized in that, Applied to network devices, the method includes: configuring first information, the first information being used by a terminal to determine that a first cell at least satisfies the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of a second cell; and / or configuring second information, the second information being used by the terminal to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of a second signal, the second signal being related to the second cell.

11. The method according to claim 10, characterized in that, The first information includes: a first parameter, or the first parameter and a second parameter; including any of the following methods: the first time range is determined at least based on the downlink reception timing of the second cell, including: the first time range is determined based on the downlink reception timing of the second cell and the first parameter; or, the first time range is determined based on the downlink reception timing of the second cell, the first parameter, and the second parameter; the second information includes: the first parameter, or the first parameter and the second parameter, or the first parameter and the first offset, or the first parameter, the second parameter, and the first offset; including any of the following methods: the first interval is determined at least based on the reception timing of the second signal, including: the first interval is determined based on the reception timing of the second signal and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first parameter, and the second parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, and the first parameter; or, the first interval is determined based on the reception timing of the second signal, the first offset, the first parameter, and the second parameter.

12. The method according to claim 11, characterized in that, This includes any of the following methods: the starting time of the first time range is t1 or t1-t. a The duration of the first time range is t. d Where t1 is the downlink reception timing of the second cell, t d Determined based on the first parameter; t a The starting time of the first interval is determined based on the second parameter; it is either t1 or t1-t. a , or t1+Ot a , or t1+O; where the duration of the first interval is t. d Where t1 is the timing for receiving the second signal, t d Determined based on the first parameter; t a O is determined based on the second parameter; O is determined based on the first offset.

13. The method according to claim 11, characterized in that, This includes any of the following methods: determining the duration of the first time range or the duration of the first interval based on the first parameter; determining the advance of the start time of the first time range relative to the downlink reception timing of the second cell based on the second parameter; or determining the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter; or determining the advance of the start time of the first interval relative to the reception timing of the second signal based on the second parameter and the first offset; and determining the offset of the transmission timing of the first signal relative to the transmission timing of the second signal based on the first offset.

14. The method according to any one of claims 11, characterized in that, The method further includes configuring at least one of the following through any one of system messages, high-level configuration, and pre-agreed methods: a first parameter, a second parameter, a first offset, cell identification information of at least one first cell, and at least one measurement resource.

15. The method according to claim 14, characterized in that, The method includes any of the following: the MeasConfig IE includes configuration information related to the first parameter and / or the second parameter; the MeasObject related IE includes configuration information related to the first parameter and / or the second parameter; the MeasConfig IE includes at least one first object, which includes configuration information related to the first parameter and / or the second parameter.

16. The method according to any one of claim 12 or 13, characterized in that, Including any of the following methods: t a The value is positive, zero, or negative; 0 is positive, zero, or negative; the advance of the start time of the first time range relative to the downlink reception timing of the second cell is positive, zero, or negative; the advance of the start time of the first interval relative to the reception timing of the second signal is positive, zero, or negative; the first offset is positive, zero, or negative.

17. The method according to claim 11, characterized in that, This includes any of the following methods: determining the second parameter based on the configuration parameters in the measurement gap configuration; configuring the first offset using one or more configuration parameters from the SSB timing deviation configuration, measurement gap configuration, and SSB measurement timing configuration.

18. The method according to claim 10, characterized in that, The first signal includes, but is not limited to, at least one of: SSB, PSS, SSS, CSI-RS, and DMRS.

19. A terminal, characterized in that, The terminal includes: a determining unit, configured to determine that a first cell at least satisfies the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of a second cell; and a receiving unit, configured to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of a second signal, wherein the second signal is related to the second cell.

20. A network device, characterized in that, The network device includes: a configuration unit for configuring first information, the first information being used by a terminal to determine that a first cell at least meets the following conditions, including: the downlink reception timing of the first cell is within a first time range, wherein the first time range is determined at least based on the downlink reception timing of a second cell; and configuring second information, the second information being used by a terminal to receive a first signal within a first interval, wherein the first signal is related to the first cell; the first interval is determined at least based on the reception timing of a second signal, wherein the second signal is related to the second cell.

21. A terminal, characterized in that, The terminal includes: a first processor, a first memory, and a first communication bus; the first communication bus is used to realize the connection and communication between the first processor and the first memory; when the first processor executes the running program stored in the first memory, it implements the method as described in any one of claims 1-9.

22. A network device, characterized in that, The network device includes: a second processor, a second memory, and a second communication bus; the second communication bus is used to realize the connection and communication between the second processor and the second memory; when the second processor executes the running program stored in the second memory, it implements the method as described in any one of claims 10-18.

23. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a first processor, it implements the method as described in any one of claims 1-9; or when it is executed by a second processor, it implements the method as described in any one of claims 10-18.

24. A computer program product, comprising a computer program, characterized in that, The computer program, when executed by the first processor, implements the method as described in any one of claims 1-9, or, when executed by the second processor, implements the method as described in any one of claims 10-18.

Images