Cell handover method, device, terminal and network side device

Abstract

The present application discloses a cell handover method, a terminal and a network side device, which belong to the technical field of communication. The cell handover method of the embodiment of the present application includes a step of a network side device acquiring first information, and a step of the network side device scheduling a cell handover based on the first information, the first information includes at least one of a measurement result of a first serving cell and at least one first cell and scheduling information, the first cell is a neighbor cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells sharing auxiliary devices.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application filed on September 14, 2021, bearing application number 202111076977.8 and entitled "Cell handover method, apparatus, terminal and network side equipment," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and specifically to a cell handover method, apparatus, terminal and network side equipment. [Background technology]

[0003] Programmable / reconfigurable intelligent surface (RIS) devices are emerging artificial material devices. RIS devices can dynamically or semi-statically change their electromagnetic properties to affect the reflection / refraction behavior of electromagnetic waves incident on the RIS device. RIS devices can realize functions such as beam scanning and beam forming by controlling the reflection / refraction of electromagnetic waves. RIS devices can be used in scenarios to enhance hotspot traffic or compensate for coverage holes.

[0004] As shown in Figure 1, RIS equipment is a device independent of a base station and provides communication services to terminals located in coverage holes or cell edge areas by forwarding / reflecting base station signals. The RIS equipment can be shared by multiple base station cells, i.e., it can provide services to terminals in different cells. When multiple base stations share the RIS equipment, as shown in Figure 1, the RIS equipment sequentially and cyclically forwards signals from base station 1 and base station 2 using a time-division multiplexing method. The beam directed toward the terminal may be used to forward the signal from base station 1 during one period and the signal from base station 2 during another period. Therefore, in the above scenario, with the introduction of RIS equipment, the signal strength distribution in the cell boundary area becomes very complex and no longer varies solely with the distance from the base station, but is also affected by the coverage plan of the RIS equipment. How to perform cell handover is an urgent issue for those skilled in the art. Summary of the Invention

[0005] The embodiments of the present application provide a cell handover method, apparatus, terminal and network side equipment that can solve the problem of performing cell handover in a communication scenario with auxiliary equipment.

[0006] In a first aspect, A network side device acquires first information; the network side device scheduling a cell handover based on the first information; The present invention provides a cell handover method, wherein the first information includes at least one of measurement results of a first serving cell and at least one first cell, and scheduling information, the first cell being a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell being cells that share auxiliary equipment.

[0007] In the second aspect, A terminal obtains measurement results of a first serving cell and at least one first cell of the terminal; performing a cell handover by the terminal based on measurement results of the first serving cell and at least one first cell; The cell handover method is provided, wherein the first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells that share auxiliary equipment.

[0008] In the third aspect, an acquisition module used for acquiring first information; a processing module used for scheduling a cell handover based on the first information; The present invention provides a cell handover device, wherein the first information includes at least one of measurement results of a first serving cell and at least one first cell, and scheduling information, the first cell being a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell being cells that share auxiliary equipment.

[0009] In the fourth aspect, an acquisition module used for acquiring measurement results of a first serving cell and at least one first cell of the terminal; a processing module adapted to perform cell handover based on measurements of the first serving cell and at least one first cell; The cell handover device is provided, wherein the first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells that share auxiliary equipment.

[0010] In a fifth aspect, there is provided a network side device comprising a processor, a memory, and a program or command stored in the memory and executable on the processor, wherein when the program or command is executed by the processor, the steps of the method according to the first aspect are realized.

[0011] In a sixth aspect, there is provided a network side device comprising a processor and a communication interface, wherein the communication interface is used to acquire first information, the processor is used to schedule cell handover based on the first information, the first information includes at least one of a first serving cell of a terminal and measurement results of at least one of the first cells, or scheduling information, the first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells that share auxiliary equipment.

[0012] In a seventh aspect, there is provided a terminal comprising a processor, a memory, and a program or command stored in the memory and executable on the processor, the program or command performing the steps of the method according to the second aspect when executed by the processor.

[0013] In an eighth aspect, a terminal including a processor and a communication interface, wherein the communication interface is used to acquire measurement results of a first serving cell and at least one first cell of the terminal, and the processor is used to perform cell handover based on the measurement results of the first serving cell and the at least one first cell; The terminal is provided, wherein the first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells that share auxiliary equipment.

[0014] In a ninth aspect, there is provided a readable storage medium having a program or command stored thereon, the program or command causing the steps of the method according to the first aspect or the steps of the method according to the second aspect to be realized when executed by a processor.

[0015] In a tenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled together, the processor executing a program or command to implement the method described in the first aspect or the method described in the second aspect.

[0016] In an eleventh aspect, there is provided a computer program / program product stored on a non-transitory storage medium and configured to implement the steps of the method according to the first or second aspect when executed by at least one processor.

[0017] In an embodiment of the present application, a network side device can schedule a cell handover based on measurement results and / or scheduling information of multiple cells, where the multiple cells share auxiliary devices, and the multiple cells include a first serving cell of a terminal and at least one first cell, where the first cell may be a neighbor cell of the first serving cell or a second serving cell of the terminal. The cell measurement results and / or scheduling information realize a solution for a terminal to perform cell handover in a communication scenario with auxiliary devices. [Brief explanation of the drawings]

[0018] [Figure 1] This is a first schematic diagram of the scenario provided in the examples of the present application. [Figure 2] 1 is a structural diagram of a wireless communication system to which an embodiment of the present application can be applied; [Figure 3] This is a second schematic diagram of the scenario provided in the examples of the present application. [Figure 4] This is a third schematic diagram of the scenario provided in the examples of the present application. [Figure 5] 1 is a first flow diagram of a cell handover method provided in an embodiment of the present application; [Figure 6] FIG. 2 is a second schematic flow diagram of the cell handover method provided in the embodiment of the present application. [Figure 7]FIG. 1 is a schematic diagram of the interaction flow of the cell handover method provided in the embodiment of the present application; [Figure 8] FIG. 2 is a second schematic diagram of the interaction flow of the cell handover method provided in the embodiment of the present application; [Figure 9] FIG. 3 is a third schematic diagram of the interaction flow of the cell handover method provided in the embodiment of the present application. [Figure 10] FIG. 4 is a fourth schematic diagram of the interaction flow of the cell handover method provided in the embodiment of the present application. [Figure 11] 1 is a first structural schematic diagram of a cell handover device provided in an embodiment of the present application; [Figure 12] FIG. 2 is a second structural schematic diagram of a cell handover device provided in an embodiment of the present application; [Figure 13] 1 is a structural schematic diagram of a communication device provided in an embodiment of the present application; [Figure 14] FIG. 2 is a hardware structural schematic diagram of a terminal provided in an embodiment of the present application; [Figure 15] FIG. 1 is a structural schematic diagram of a network device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, the technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. Based on the embodiments of the present application, all other embodiments that can be obtained by those skilled in the art without any creative efforts shall fall within the scope of protection of the present application.

[0020] The terms "first," "second," etc., used in the specification and claims of this application are not intended to describe a particular order or precedence order, but rather to distinguish between similar objects. Terms used in this manner may be interchangeable in some cases, allowing the embodiments of this application to be implemented in an order other than that shown or described herein. It should be understood that objects distinguished by "first" and "second" generally belong to the same category, and the number of objects is not limited; for example, a first object may be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of connected objects, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0021] It should be noted that the techniques described in the embodiments of this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-Carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the techniques described in this application may be used in the systems and wireless technologies mentioned above, as well as in other systems and wireless technologies. The following description will discuss New Radio (NR) systems for illustrative purposes, and NR terminology will be used in much of the following description, although these technologies may be used in other systems and wireless technologies, such as 6th Generation (6G) systems. thIt may be applied to applications other than NR system applications, such as 6G (6th Generation) communication systems.

[0022] 2 shows a structural diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be called a terminal device or a user equipment (UE), and may be a terminal side device such as a mobile phone, a tablet personal computer (Tablet Personal Computer), a laptop computer (also called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (Mobile Internet Device (MID)), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle-mounted equipment (VUE), a pedestrian-mounted equipment (PUE), or a smart home (household appliances with wireless communication functions, such as a refrigerator, a television, a washing machine, or furniture). The wearable device includes a smart watch, a smart bracelet, a smart headphone, a smart glass, smart jewelry (such as a smart bangle, a smart bracelet, a smart ring, a smart necklace, a smart anklet, etc.), a smart wristband, a smart wear, a game console, etc. It should be noted that in the embodiments of the present application, the specific type of the terminal 11 is not limited. The network side device 12 may be a base station or a core network.The base station may be referred to as a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (TRP), or any other appropriate term in the above fields, and the base station is not limited to a specific technical term as long as it can achieve similar technical effects. It should be noted that the embodiments of the present application merely use a base station in an NR system as an example, but the specific type of the base station is not limited.

[0023] In one embodiment, the method of the embodiment of the present application can be applied to another wireless communication system, which includes a terminal, an auxiliary device, and a network side device, and the auxiliary device includes a RIS device or a relay device, and optionally, the relay device may be a Layer 1 (L1) relay / repeator with beamforming function.

[0024] The operating principles and operating characteristics of auxiliary equipment based on RIS equipment are as follows:

[0025] The RIS device consists of a front-end artificial surface and a back-end control module. The front-end artificial surface is composed of densely and uniformly arranged artificial device units. The electromagnetic properties of the device units are affected by the device's control signal / bias voltage. Different control signal / bias voltages correspond to different reflection / refraction coefficients, and changes in the reflection / refraction coefficients affect the phase and / or intensity of the reflected / refraction signals. Microscopically, each device unit produces an independent reflection / refraction signal, and macroscopically, these signals are superimposed to enable control over electromagnetic waves. The control signal / bias voltage is provided by the back-end control module.

[0026] RIS devices can be used in scenarios to enhance hotspot traffic or to compensate for coverage holes.

[0027] Future wireless services will include very heavy traffic data services (e.g., AR / VR, high-definition video, etc.) or other hotspot services that impose high demands on wireless channels. As shown in Figure 3, depending on the hotspot demands of hotspot users, the serving cell dynamically activates auxiliary equipment (e.g., TRP and RIS equipment) to increase the available beams for the hotspot users and meet the demands of the hotspot services.

[0028] Coverage holes occur due to obstacles within the coverage area of ​​a cell, or significant fading and signal interference from neighboring cells at the cell edge cause weak radio signal strength / low SINR in the hole or cell edge area, affecting communication quality. This phenomenon is more common in high frequency and millimeter wave bands. As shown in Figure 4, RIS equipment is independent of the base station and can be placed in a visible location away from the base station to forward / reflect the base station's signals to provide communication services to coverage holes or cell edge areas. Reasonable node placement prevents RIS equipment from being blocked by obstacles, ensuring good signal coverage.

[0029] Intelligent surface RIS devices have the ability to affect the surrounding radio signal propagation environment. By generating beams in different directions, intelligent surface RIS devices affect the energy distribution of reflected signals, changing the energy and phase distribution of multipath signals in the radio environment. When the intelligent surface RIS device changes, the signal strength and channel response parameters of the signals received by the terminal equipment / network equipment need to be re-measured / re-estimated.

[0030] The distinction between channel changes caused by RIS devices and conventional channel changes is as follows: a) Channel changes caused by RIS devices are rapid, while conventional channel changes are slow. The control voltage changes of RIS devices can complete high-level and low-level conversions in nanoseconds to microseconds. However, the speed of change in conventional wireless channels, or the time correlation of the channels, is determined by the speed of change in the surrounding propagation environment (including the terminal's movement speed and the movement speed of reflecting objects / obstructions). In low-speed environments, wireless channels change slowly, and the time correlation can reach milliseconds or even longer. b) Channel changes caused by RIS devices are periodic, while conventional channel changes are absolutely random. The changes in the RIS devices and the influence of the nearby channel environment caused by the RIS devices are controlled by the RIS device's control module, which can periodically change the RIS reflection parameters. In a slowly changing channel environment, other parameters of the channel environment do not change within the small change period of the RIS device, resulting in a periodically changing receiving channel response of the terminal.

[0031] In one embodiment, the RIS equipment or L1 relay is deployed at the cell edge to improve the signal quality of cell edge users. However, since the RIS equipment or L1 relay cannot generate data information by itself and can only forward signals from the base station, the RIS equipment can only forward valid signals when the base station transmits a signal to the RIS equipment or when a terminal within the coverage area of ​​the RIS equipment transmits an uplink signal to the RIS equipment, and is in an inactive state at other times. Correspondingly, the terminal within the coverage area of ​​the RIS equipment is in a sleep / silent state or communicates directly with the base station according to the instruction of the base station during the period when the RIS equipment is inactive.

[0032] From the viewpoint of base station scheduling, a base station needs to ensure communication services with terminals in all directions, so it can transmit downlink signals to the RIS equipment only during a partial period or receive uplink signals transmitted from terminals within the coverage area of ​​the RIS equipment. In other periods, the RIS equipment can forward signals from corresponding base stations in other cells to provide services to edge users of other cells. In this scenario, users in the boundary areas of multiple cells share the coverage extension service provided by the RIS equipment in a time-division multiplexed manner.

[0033] The RIS equipment is shared by multiple cells, i.e., it serves users in different cells respectively. In this deployment scenario, the coverage area of ​​the RIS equipment is the transition area of ​​multiple cells, allowing soft cell handover for users and avoiding hard cell handover when the user's signal quality is too low.

[0034] When multiple base stations share a RIS device, the signals from the multiple base stations observed by the terminal are simultaneously affected by the beam forwarding by the RIS device. That is, the RIS beam directed at the terminal may be used to forward the signal from base station 1 at one time and the signal from base station 2 at another time. From the terminal's perspective, the signals from base station 1 and base station 2 are both forwarded by the same beam from the RIS device, so the signal strength difference between base station 1 and base station 2 is not significant. In the above scenario, with the introduction of auxiliary equipment such as RIS equipment, the signal strength distribution in the cell boundary area becomes very complex and no longer varies solely with the distance from the base station, but is also affected by the coverage plan of the RIS device. How to perform cell handover is an urgent issue for those skilled in the art.

[0035] In a solution according to an embodiment of the present application, the network side equipment schedules the cell handover based on measurement results of the first serving cell and at least one first cell that share the auxiliary equipment, and / or scheduling information and / or a handover request of the terminal.

[0036] Hereinafter, the cell handover method provided in the embodiments of the present application will be described in detail with reference to the drawings through some examples and application scenarios.

[0037] 5 is a flow diagram of a cell handover method provided in an embodiment of the present application No. 1. As shown in FIG. 5, the cell handover method provided in this embodiment includes the following steps:

[0038] Step 101: The network side device acquires the first information; The first information includes at least one of measurement results of a first serving cell and at least one of the first cells and scheduling information, the first cell being a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell being cells that share auxiliary equipment.

[0039] The auxiliary equipment can be shared by multiple cells. It can be understood that the network side equipment of multiple cells can share the auxiliary equipment using time division multiplexing or space division multiplexing. Time division multiplexing means that different network side equipment controls the auxiliary equipment in different periods, and the auxiliary equipment beam-forwards the downlink signals of the corresponding network side equipment or the uplink signals of the terminals of the corresponding cells during the corresponding periods. Space division multiplexing means that different network side equipment transmits signals to the auxiliary equipment using beams in different directions during the same period, and the auxiliary equipment forwards incident signals of different directions to different beam directions to achieve differentiation of different cell signals and provide signals to terminals in different beam areas. This makes it possible to make full use of time and space resources and improve signal quality in cell edge areas.

[0040] Specifically, the network side equipment obtains the first information, the first information may include measurement results and / or scheduling information, the measurement results may be measurement results for the first serving cell and the first cell of the terminal, and optionally, the measurement results are reported from the terminal to the network side equipment.

[0041] The scheduling information may include at least one of the number of terminals within the coverage area of ​​the auxiliary device, service information of the terminals, or transmission beam information of the auxiliary device. The transmission beam information of the auxiliary device includes at least one of information such as a reference signal corresponding to the transmission beam, a port number, a serving cell, and a network side device. The service information of the terminal refers to the service information of the terminals within the coverage area of ​​the auxiliary device.

[0042] Optionally, the terminal may have multiple serving cells. The first serving cell may be the terminal's master serving cell, i.e., primary serving cell. The second serving cell may be the terminal's slave serving cell, i.e., secondary serving cell. The terminal can perform master-slave serving cell handover between the first and second serving cells.

[0043] Optionally, the terminal may also perform handover between the serving cell and a neighboring cell.

[0044] Step 102: The network side device schedules a cell handover based on the first information.

[0045] Specifically, the network side device schedules a cell handover based on the first information. Assuming that the first information includes a measurement result, the network side device schedules the cell handover based on the measurement result. That is, the network side device compares the measurement results of different cells, and if a handover condition is met, the network side device schedules the cell handover (e.g., handover of the terminal from the current first serving cell to the target cell) or the master-slave cell handover (i.e., the target cell is the master serving cell and the current first serving cell is the slave serving cell). The handover condition may include, for example, that the measurement result of the target cell to be handover is better than that of the current first serving cell, and may further include that the difference between the measurement result of the target cell to be handover and the measurement result of the current first serving cell is greater than a certain threshold, which may be set in advance.

[0046] Assuming that the first information includes scheduling information, the network side device determines whether the terminal should perform cell handover based on the scheduling information. For example, if the number of terminals in the current serving cell is large and the number of terminals served by other cells is small, the terminal can be switched from the current serving cell to another cell. For example, if the service currently used by the terminal is a voice service and the number of terminals using the voice service in the current serving cell is large, the terminal can be switched to another cell that provides the voice service.

[0047] The network side device can also make a decision on cell handover by comprehensively considering the measurement results and scheduling information.

[0048] Optionally, the network side equipment schedules a cell handover according to a handover request of the terminal. The terminal can determine whether to perform a cell handover based on measurement results of different cells. If a cell handover is to be performed, the terminal sends a handover request to the network side equipment, and the network side equipment schedules the cell handover.

[0049] In the method of this embodiment, the network side device can schedule a cell handover for a terminal based on measurement results and / or scheduling information of multiple cells, where the multiple cells share auxiliary devices, and the multiple cells include a first serving cell of the terminal and at least one first cell, where the first cell may be a neighbor cell of the first serving cell or a second serving cell of the terminal. The cell measurement results and / or scheduling information realize a solution for the terminal to perform cell handover in a communication scenario with auxiliary devices.

[0050] In one embodiment, the first information includes a first serving cell of the terminal and at least one measurement result of the first cell, and step 102 may be specifically implemented in the following manner.

[0051] The network side equipment schedules the cell handover based on the measurement results of the first serving cell and the at least one first cell, and the operation state of the auxiliary equipment.

[0052] It can be understood that the operating state of the auxiliary device includes an operating state and a non-operating state. When the auxiliary device is in an operating state, i.e., when the auxiliary device is operating, the auxiliary device forwards signals of the network side devices or forwards uplink signals sent from the terminal. When the auxiliary device is in a non-operating state, i.e., when the auxiliary device is not operating, the auxiliary device does not forward any signals of the network side devices.

[0053] The measurement results of the multiple cells are affected by the operating state of the auxiliary equipment, and the network side equipment needs to take the operating state of the auxiliary equipment into consideration when determining whether the terminal should perform cell handover.

[0054] Optionally, the step of "the network side equipment scheduling the cell handover based on the measurement results of the first serving cell and the at least one first cell, and the working state of the auxiliary equipment" may be realized in the following manner.

[0055] If the auxiliary device is not working, the network side device schedules a cell handover based on the measurement result of the first serving cell and the measurement result of the at least one first cell; If the auxiliary device is operational, the network side device schedules a cell handover based on measurement results of the first serving cell and at least one first cell of the terminal on the same beam transferred by the auxiliary device.

[0056] Specifically, when the auxiliary equipment is not operating, signals of multiple cells are measured, i.e., the measurement results of the current first serving cell and the measurement results of the first cell can be obtained through measurement, and at this time, the signals of the cells are not affected by beam forwarding by the auxiliary equipment.

[0057] The period during which the auxiliary equipment is not operating may be a time window explicitly set by the network side equipment or may be implicitly derived from the available time window during which the auxiliary equipment serves each cell. This solution can be applied to scenarios where the period during which the first cell occupies the auxiliary equipment and the beam configuration are unknown.

[0058] When the auxiliary device is operating, the terminal's current first serving cell and the first cell share the auxiliary device, so the signals of these cells are affected by beam forwarding by the auxiliary device, and the measurement results are those of these cells on the same beam forwarded by the auxiliary device.

[0059] For example, the terminal obtains measurement results of the current first serving cell on at least one of the three beams in FIG. 1 transferred by the auxiliary device, and also obtains measurement results of the first cell on at least one beam transferred by the auxiliary device, where the at least one beam corresponding to the first cell and the at least one beam corresponding to the first serving cell are the same beam. For example, if the at least one beam corresponding to the first serving cell is beam 1, the at least one beam corresponding to the first cell is also beam 1.

[0060] The cell measurement results on at least one beam are subjected to processing such as weighting to obtain a final measurement result, or a measurement result corresponding to a beam is selected as the final measurement result. Optionally, the measurement result corresponding to the selected beam may be the best measurement result on the measurement beam among all beams transmitted by the auxiliary equipment. Optionally, the measurement result may be expressed in terms of Signal to Interference Noise Ratio (SINR), Reference Signal Received Power (RSRP), or Reference Signal Received Quality (RSRQ).

[0061] Optionally, when the auxiliary device is not working, if a difference between the measurement result of the second cell and the measurement result of the first serving cell exceeds a first threshold, the network side device schedules a cell handover; When the auxiliary device is working, if a difference between a measurement result of the second cell and the first serving cell on the same beam forwarded by the auxiliary device exceeds a second threshold, the network side device schedules a cell handover; The second cell is any one of the at least one first cell.

[0062] Specifically, when the auxiliary device is not operating, if the difference between the measurement result of the second cell and the measurement result of the first serving cell exceeds a first threshold, indicating that the measurement result of the second cell is superior to the measurement result of the first serving cell, the terminal can be switched to the second cell or a master-slave serving cell handover can be performed.

[0063] When the auxiliary device is operating, if the difference between the measurement results of the second cell and the first serving cell on the same beam transmitted by the auxiliary device exceeds a second threshold, it indicates that the measurement results of the second cell are better than the measurement results of the first serving cell on the same beam transmitted by the auxiliary device, and therefore the terminal can be switched to the second cell or a handover of the master-slave serving cell can be performed.

[0064] In the above embodiment, since the cell signal is affected by beam forwarding by the auxiliary equipment, the operating status of the auxiliary equipment affects the cell measurement results, and scheduling cell handover based on the cell measurement results and the operating status of the auxiliary equipment makes the cell handover decision more accurate.

[0065] In one embodiment, the step of "the network side equipment scheduling the cell handover based on the measurement results of the first serving cell and at least one first cell, and the operating status of the auxiliary equipment" may be realized in several ways as follows:

[0066] When the serving cells of the terminal include a first serving cell and at least one second serving cell, the network side device schedules a handover of the master-slave serving cell based on the measurement results of the first serving cell and the at least one second serving cell and the operating state of the auxiliary device; or If the serving cells of the terminal include only the first serving cell, the network side equipment schedules the cell handover based on the measurement results of the first serving cell and at least one neighboring cell, and the operating state of the auxiliary equipment.

[0067] Specifically, in a scenario where a terminal can maintain connections with multiple cells simultaneously, i.e., a scenario where the terminal is accessing multiple cells simultaneously, the terminal has multiple serving cells, among which there is one master serving cell and at least one slave serving cell.

[0068] The terminal transmits the measurement results of the current master serving cell and the slave serving cell to the network side equipment, and the network side equipment schedules the cell handover process of the terminal based on the measurement results of the current master serving cell and the slave serving cell of the terminal, and further takes into account the operating state of the auxiliary equipment during scheduling.

[0069] In a scenario where the terminal has multiple serving cells, if the auxiliary device is not operating, the network side device schedules a cell handover based on a measurement result of a first serving cell and a measurement result of at least one second serving cell; If the auxiliary device is operational, the network side device schedules a cell handover based on measurement results of the first serving cell and at least one second serving cell of the terminal on the same beam transferred by the auxiliary device.

[0070] In a scenario where the terminal does not support simultaneous access to multiple cells, the terminal needs to transmit the measurement results of the current first serving cell and neighboring cells to the network side equipment, and the network side equipment needs to schedule the cell handover process of the terminal based on the measurement results of the terminal's current first serving cell and neighboring cells, and further schedule the cell handover based on the operating status of the auxiliary equipment.

[0071] In a scenario where the terminal has one serving cell, when the auxiliary device is not working, the network side device schedules a cell handover based on a measurement result of the first serving cell and a measurement result of at least one neighboring cell; If the auxiliary device is operational, the network side device schedules a cell handover based on measurement results of the terminal's first serving cell and at least one neighboring cell on the same beam transferred by the auxiliary device.

[0072] In this embodiment, the specific scheduling solution can be referred to the above embodiment, and the description is omitted here.

[0073] In the above embodiment, the handover of the master-slave serving cell enables soft handover of the cell, ensuring the continuity of the communication service without affecting the communication of the terminal.

[0074] In one embodiment, the scheduling information includes transmission beam information of the auxiliary device, and the transmission beam information includes the master-slave relationship of the network side device corresponding to the transmission beam, and step 102 may be realized in the following manner.

[0075] When the serving cells of the terminal include a first serving cell and at least one second serving cell, the network side equipment schedules the handover of the master-slave serving cell based on the position of the terminal and the master-slave relationship of the network side equipment corresponding to the forwarding beam of the auxiliary equipment, and the master-slave relationship of the network side equipment corresponding to the forwarding beam is determined by the coverage range of the forwarding beam of the auxiliary equipment and the relative position of the network side equipment corresponding to each serving cell.

[0076] Specifically, the forwarding beam information includes at least one of an identifier of each beam, such as a forwarded port number, a reference signal for each beam, and information of a serving cell and / or network side equipment corresponding to the forwarding beam.

[0077] Optionally, the information of the serving cells and / or network side devices corresponding to the forwarding beams may include a master-slave relationship of the network side devices corresponding to the forwarding beams. Optionally, the master-slave relationship of the network side devices corresponding to the forwarding beams is determined according to the coverage area of ​​the forwarding beams of the auxiliary device and the relative position of the network side devices corresponding to each serving cell, for example, if the distance between the forwarding beam and a certain base station is close, this base station is the master base station and other base stations are slave base stations.

[0078] For example, in FIG. 1, for beam 1, the master-slave relationship of the network side equipment is that base station 1 is the master base station and base station 2 is the slave base station; for beam 2, the master-slave relationship of the network side equipment is that base station 1 is the master base station and base station 2 is the slave base station; and for beam 3, the master-slave relationship of the network side equipment is that base station 2 is the master base station and base station 1 is the slave base station. When the terminal is within the coverage area of ​​beam 1, base station 1 is the master base station and base station 2 is the slave base station. If the current first serving cell is a cell covered by base station 1, the second serving cell may be a cell covered by base station 2. When the terminal is within the coverage area of ​​beam 3, base station 2 is the master base station and base station 1 is the slave base station. In this case, a master-slave serving cell handover needs to be performed, whereby the current first serving cell is switched as the slave serving cell and one of the second serving cells is switched as the master serving cell; for example, a cell among the second serving cells with the best signal quality is selected as the master serving cell. Therefore, the network side equipment schedules the handover of the master-slave serving cell based on the change in the terminal's position and the master-slave relationship of the network side equipment corresponding to the forwarding beam. For example, if the terminal moves from the coverage area of ​​beam 1 to the coverage area of ​​beam 3, the master-slave relationship of the network side equipment changes, so a handover of the master-slave serving cell needs to be performed.

[0079] Optionally, when the terminal is switched from the coverage area of ​​one transmission beam of the auxiliary equipment into the coverage area of ​​another transmission beam, the beams corresponding to the first serving cell and the first cell are switched simultaneously.

[0080] In the above embodiment, when the terminal has multiple serving cells, the network side equipment schedules the handover of the master-slave serving cell based on the location of the terminal and the master-slave relationship of the network side equipment corresponding to the forwarding beam of the auxiliary equipment, and the implementation process is simple and efficient.

[0081] In one embodiment, the network side device determines, based on the first information, that the terminal needs to be switched from a current first serving cell to a second cell, or that the current first serving cell needs to be switched as a slave serving cell and the second cell needs to be switched as a master serving cell.

[0082] A network side device sends a handover command message to the terminal, and the handover command message is for instructing the terminal to switch from the first serving cell to the second cell or to perform a handover between master and slave serving cells. The handover command message indicates configuration information of the second cell, and the configuration information includes at least one of configuration information of a synchronization signal block (SSB), system information (e.g., a system information block (SIB)), and configuration information of a physical downlink control channel (PDCCH) of the second cell, and the PDCCH configuration information includes at least one of a PDCCH transmission period, PDCCH time-frequency resource configuration information, and a PDCCH usage beam.

[0083] Specifically, after determining that the terminal needs to perform cell handover, the network side device sends a handover instruction to the terminal, and the handover instruction is to switch from the first serving cell to the second cell or perform a master-slave serving cell handover, that is, to instruct the current first serving cell to be switched as the slave serving cell and the second cell handover to be switched as the master serving cell.

[0084] The handover command message further includes information about the target cell to be switched to, such as the transmission period of the second cell's SSB, SIB, and PDCCH, time-frequency resource configuration information, and configuration parameters required to receive the second cell's broadcast information via beams, etc.

[0085] Optionally, the validity period of the configuration information included in the handover direction message may be explicitly indicated in the handover direction message, or may become valid from a certain time after receiving the handover direction message according to rules defined in the protocol.

[0086] Optionally, the network side equipment may receive a handover request from the terminal, which is sent by the terminal after obtaining measurement results of the first serving cell and at least one first cell, that is, whether a cell handover needs to be performed is determined by the terminal, and the process of determining whether a cell handover needs to be performed by the terminal is the same as the process performed by the network side equipment, so the description is omitted here.

[0087] In one embodiment, before step 102, the method further includes the following steps:

[0088] The network side equipment determines that the terminal is within the coverage area of ​​the auxiliary equipment based on the measurement results of the beam forwarded by the auxiliary equipment and the measurement results of the beam transmitted directly from the network side equipment.

[0089] Specifically, the network side device sets a plurality of different intercepting beams for the terminal, including beams directly transmitted from the network side device and beams forwarded by the auxiliary device. The terminal measures the plurality of intercepting beams and reports the measurement results. The network side device determines whether the terminal is within the coverage area of ​​the auxiliary device based on the reported measurement results, i.e., whether the terminal communicates using the beam forwarded by the auxiliary device.

[0090] Optionally, different intercept beams are embodied as different reference signals, configured as different port numbers, time-frequency resources and pseudo-random sequences.

[0091] When the terminal communicates using the transmission beam of the auxiliary device, the network side device corresponding to the current first serving cell configures the serving cell of the auxiliary device and / or the corresponding network side device, and related configuration information, for the terminal. The configuration information includes at least one of the number of serving cells sharing the auxiliary device, a physical cell identifier (PCI), a usage time and usage period for each serving cell to use the auxiliary device, and time-frequency domain configuration parameters of the reference signal (SSB or Channel State Information Reference Signal (CSI-RS)) of each serving cell. If the reference signal is CSI-RS, parameters of the generation sequence of CSI-RS need to be further configured.

[0092] With the introduction of the auxiliary device, the boundary area between two cells changes from an area determined by the signal quality of a single beam transmitted from the base stations of the two cells (for example, determined based on RSRP, i.e., |RSRP_1-RSRP_2|>Thred, where RSRP1 indicates the signal quality of base station 1, RSRP2 indicates the signal quality of base station 2, and Thred is the cell handover threshold set by the network. In the cell boundary area, the signal quality of a cell depends on the signal quality of the beam directed by the cell toward the cell boundary area. Cell handover occurs only when the above trigger condition is met; otherwise, the cell camps on the original cell). To an area determined by the signal quality of multiple beams (including the beam directly directed by the base station toward the area and the beam forwarded by the auxiliary device), making it difficult to trigger the original cell handover condition. Therefore, since terminals of multiple cells simultaneously exist in the coverage area of ​​the auxiliary device, the cell boundary becomes even more unclear, the transition area between the two cells further increases, and more terminals experience signal interference from adjacent cells. Thus, in one embodiment, the terminal can access multiple cells simultaneously, i.e., the terminal has multiple serving cells, and in this scenario, the method comprises: receiving, by the network side device, measurement results of the first serving cell and at least one third cell in the same beam forwarded by the auxiliary device, transmitted from the terminal; The method further includes: the network side device configuring access parameters of at least one third cell for the terminal based on the measurement result.

[0093] Optionally, the access parameters are for indicating data parameters of PDSCH and PUSCH of the first cell, including related configuration parameters of DL / UL BWP of the first cell, and related PDCCH and PUCCH configuration parameters.

[0094] Specifically, the network side equipment determines whether the terminal establishes a connection with at least one third cell based on the measurement result of the terminal, or determines whether the terminal establishes a connection with at least one third cell based on the scheduling information of the network side equipment.

[0095] In the solution that determines based on the terminal's measurement results, the signal measurement operation of at least one third cell may be initiated by the network side equipment or may be triggered by the terminal based on an event. The network side equipment of the current first serving cell configures measurement parameters of other cells for the terminal, including at least one of a reference signal (CSI-RS or SSB, and an SSB index is specified), a measurement period, a measurement window, and a measurement count. The configured reference signal can be understood to be a beam transmitted from the network side equipment to the auxiliary equipment and forwarded by the auxiliary equipment. For the same SSB of other cells, multiple measurement windows are configured, corresponding to multiple forwarding beams of the auxiliary equipment. Optionally, the measurement window may include a reference signal measurement window of other cells when the auxiliary equipment is not forwarding the other cell's signal or when the auxiliary equipment is not operating.

[0096] In a scenario of scheduling by network side equipment, the terminal reports measurement results of signals of multiple cells on the same beam transmitted by the auxiliary equipment, and the network side equipment configures access parameters of other cells (e.g., contention free random access (CFRA) preamble sequence and random access channel occasion (RO) resource) for the terminal based on the current measurement results.

[0097] Optionally, in a terminal triggered scenario, the method further comprises: A step in which a network-side device receives a connection establishment request sent from a terminal, where the connection establishment request is for requesting to establish a connection with at least one third cell, is triggered when a first condition is satisfied, and the first condition includes that the difference between the measurement result of the third cell in the same beam transferred by an auxiliary device and the measurement result of the first serving cell in the same beam transferred by the auxiliary device is not more than a third threshold value. The method further includes a step in which the network-side device sets access parameters of at least one third cell for the terminal according to the connection establishment request.

[0098] Specifically, when the terminal determines that the measurement result satisfies the first condition, the terminal triggers the transmission of a connection establishment request for requesting to establish a connection with the third cell to the network-side device.

[0099] The first condition includes that the difference between the measurement result of the third cell in the same beam transferred by an auxiliary device and the measurement result of the first serving cell in the same beam transferred by the auxiliary device is not more than a third threshold value. It can be represented by abs(Ms - Mn) < Thresh, where Ms represents the measurement result of the current first serving cell in the beam transferred by the auxiliary device, Mn represents the measurement result of the first cell using the same beam of the auxiliary device, and Thresh represents the third threshold value set by the first serving cell.

[0100] The network-side device sets access parameters of the first cell for the terminal according to the connection establishment request. For details, reference can be made to the above scheduling scenario by the network-side device.

[0101] Optionally, based on the above first condition, additional constraint conditions are added, and the first condition is the measurement result of the third cell in the same beam transferred by the auxiliary device is not less than a fourth threshold value, and A difference between the measurement result of the third cell on the same beam forwarded by the auxiliary equipment and the measurement result of the third cell under a second condition is greater than a fifth threshold; The measurement result of the third cell under the second condition is equal to or greater than the sixth threshold; and an arrival time difference between a downlink frame boundary of a third cell and a downlink frame boundary of the first serving cell is less than or equal to a seventh threshold; The second condition includes that the auxiliary equipment is not operational or that the beam transmitted by the auxiliary equipment is not directed towards the terminal.

[0102] Specifically, the measurement result of the third cell on the same beam transmitted by the auxiliary device is greater than or equal to the fourth threshold can be indicated by Mn>Thresh1, where Thresh1 indicates the fourth threshold set by the first serving cell; The difference between the measurement result of the third cell on the same beam transmitted by the auxiliary device and the measurement result of the third cell under the second condition is greater than the fifth threshold, which can be indicated by Mn-Mn0>Thresh2, where Mn0 is the measurement result of the third cell when the auxiliary device is not operating or when the beam transmitted by the auxiliary device is not directed to the terminal, and Thresh2 indicates the fifth threshold set by the first serving cell.

[0103] That the measurement result of the third cell under the second condition is equal to or greater than the sixth threshold can be indicated by Mn0>Thresh3, where Thresh3 is the sixth threshold set by the first serving cell.

[0104] Furthermore, optionally, the terminal determines the arrival time difference between the downlink frame boundaries of the current first serving cell and the third cell (i.e., determines the synchronization status of the downlink frame boundaries of different cells). If the arrival time difference between the downlink frame boundaries is smaller than a seventh threshold Thresh4, the terminal is permitted to establish a connection with the third cell. Furthermore, the terminal receives the SSB of the third cell and performs a random access flow to establish a connection between the terminal and the third cell and achieve uplink and downlink synchronization.

[0105] Furthermore, after the terminal accesses the at least one third cell, the third cell becomes the first cell.

[0106] In a solution of making a decision based on scheduling information of a network side device, optionally, the network side device sends scheduling signaling to the terminal to schedule the terminal to randomly access the first cell, and the scheduling signaling configures the RO resource of Msg1 for random access, parameters of the CF RA preamble, and uplink and downlink bandwidth parts (Band Width Parts, BWP) for communication of the first cell.

[0107] In the above embodiment, since the terminal accesses multiple cells, signals from other cells also serve the terminal and do not become interference signals, thereby reducing interference between cells.

[0108] Optionally, in one embodiment, the method further comprises: The method further includes a step of the network side device sending a time advance TA to the terminal, where the TA is for communication between the terminal and the first serving cell and each first cell.

[0109] Specifically, when the network side equipment of the current first serving cell transmits a TA to the terminal, and the terminal simultaneously accesses the current first serving cell and another second serving cell, the terminal only receives the TA of the current first serving cell, which affects both the current first serving cell and the other second serving cell, i.e., the TA also applies to the other second serving cell.

[0110] In one embodiment, the terminal may move away from the coverage area of ​​the auxiliary device while moving, and when the terminal moves away from the coverage area of ​​the auxiliary device, the terminal is switched to a state in which it directly communicates with the network side device. That is, the method includes: receiving instruction information transmitted from the terminal by the network side device to instruct the terminal to directly communicate with the network side device; Optionally, the method further includes a step of the network side equipment sending a notification message to the network side equipment of each first cell, where the notification message is for instructing the network side equipment of each first cell to disconnect the connection with the terminal.

[0111] Specifically, the terminal obtains measurement results of measurement beams based on measurement beams configured by the current first serving cell, and the measurement beams include beams directly transmitted from the network side equipment and beams transmitted from the network side equipment and forwarded by the auxiliary equipment. If the terminal has performed handover of a master-slave serving cell within the coverage area of ​​the auxiliary equipment, the current first serving cell needs to reconfigure the measurement beams for the terminal.

[0112] If the measurement result of the beam directly transmitted from the network side device is superior to the measurement result of the beam forwarded by the auxiliary device, the terminal switches to a state of direct communication with the network side device. At the same time, the terminal no longer maintains a connection with the other serving cells, and the network side device corresponding to the current first serving cell notifies the other serving cells to terminate the communication connection with the terminal.

[0113] In the above embodiment, after the terminal leaves the coverage area of ​​the auxiliary device while moving, it switches to a state of directly communicating with the network side device, eliminating the need for forwarding by the auxiliary device, and improving communication efficiency.

[0114] In one embodiment, as shown in FIG. 6, the cell handover method provided in this embodiment includes the following steps:

[0115] Step 201: A terminal obtains measurement results of a first serving cell and at least one first cell of the terminal; The first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and at least one first cell share auxiliary equipment.

[0116] For the specific implementation principle of this step, please refer to the explanation of step 101, and the explanation will be omitted here.

[0117] Step 202: The terminal performs a cell handover based on measurement results of the first serving cell and the at least one first cell.

[0118] Specifically, the terminal may directly determine whether to perform cell handover based on the measurement result. When the terminal determines to perform cell handover, the terminal may send a handover request to the network side device; Alternatively, the terminal may transmit the measurement result to the network side device, and the network side device may decide whether to perform a cell handover. When the network side device decides to perform a cell handover, the network side device transmits a handover instruction to the terminal.

[0119] Optionally, step 202 may be realized in several ways:

[0120] One method is as follows: a terminal transmitting measurement results of the first serving cell and at least one first cell to a network side device, the measurement results being for scheduling a cell handover by the network side device; The terminal performs cell handover according to the handover command message sent from the network side device.

[0121] Another method is The terminal determines to perform a cell handover based on measurement results of the first serving cell and at least one first cell; The terminal performs a cell handover in accordance with a handover command message transmitted from the network side device, and the handover command message is transmitted from the network side device in accordance with a handover request transmitted from the terminal.

[0122] Optionally, after the step of the terminal determining to perform a cell handover based on measurement results of the first serving cell and the at least one first cell, The method further includes a step of the terminal sending a handover request to the network side device.

[0123] Optionally, the step of "the terminal determines to perform cell handover based on measurement results of the first serving cell and at least one first cell" may be specifically implemented in the following manner:

[0124] The terminal determines to perform a cell handover based on measurement results of the first serving cell and at least one first cell, and on the operation state of auxiliary equipment.

[0125] Optionally, if the auxiliary device is not working, the terminal determines to perform a cell handover based on a measurement result of the first serving cell and a measurement result of the at least one first cell; When the auxiliary device is operating, the terminal decides to perform cell handover based on measurement results of the terminal's first serving cell and at least one first cell on the same beam transmitted by the auxiliary device.

[0126] Optionally, determining that the terminal performs cell handover when a difference between a measurement result of a second cell and a measurement result of the first serving cell exceeds a first threshold; If a difference between the measurement result of the second cell and the measurement result of the first serving cell in the same beam transferred by the auxiliary device exceeds a second threshold, the terminal determines to perform cell handover; The second cell is any one of the at least one first cell.

[0127] In one embodiment, the step of "the terminal determines to perform cell handover based on measurement results of the first serving cell and at least one first cell" may be specifically implemented in the following manner.

[0128] When the serving cells of the terminal include a first serving cell and at least one second serving cell, the terminal determines to perform a master-slave serving cell handover based on the measurement results of the first serving cell and at least one second serving cell and the operating state of an auxiliary device; or If the serving cells of the terminal include a first serving cell, the terminal determines to perform a cell handover based on measurement results of the first serving cell and at least one neighboring cell, and the operating state of auxiliary equipment.

[0129] Optionally, the terminal sends a connection establishment request to the network side device, the connection establishment request is for requesting to establish a connection with at least one third cell, and is triggered when a first condition is met, the first condition including: a difference between a measurement result of the third cell on the same beam transferred by the auxiliary device and a measurement result of the first serving cell on the same beam transferred by the auxiliary device is less than or equal to a third threshold; The terminal receives access parameters of at least one third cell transmitted from the network side device.

[0130] Optionally, the step of the terminal obtaining measurement results of a first serving cell and at least one first cell of the terminal includes: The step includes the terminal obtaining measurement results of the first serving cell and at least one measurement result of the first cell based on measurement configuration information, and transmitting the measurement results of the first serving cell and at least one measurement result of the first cell to a network side device, wherein the measurement configuration information includes at least one of a reference signal, a measurement period, a measurement time window, and a measurement count.

[0131] Optionally, the method further comprises: The terminal acquires a measurement result of a beam directly transmitted from the network side device and a measurement result of a beam forwarded by the auxiliary device; The method further includes a step in which the terminal switches to direct communication with the network side device based on the measurement results of the beam transmitted directly from the network side device and the measurement results of the beam forwarded by the auxiliary device.

[0132] Optionally, after the step of switching to direct communication with the network side device, The method further includes the terminal disconnecting from the second serving cell.

[0133] The specific implementation process and technical effects of the above embodiment are the same as those of the network-side method embodiment. For details, please refer to the detailed introduction in the network-side embodiment, and the description will be omitted here.

[0134] As shown in FIG. 7, the method includes: Step 100a in which the network device sends measurement configuration information to the terminal; Step 201, in which the terminal obtains measurement results of the terminal's first serving cell and at least one first cell; Step 100b, in which the terminal transmits measurement results of the first serving cell and at least one first cell of the terminal to the network equipment; Step 102, in which the network equipment schedules the cell handover based on the measurement results and / or scheduling information; Step 103, in which the network device sends a handover instruction to the terminal.

[0135] As shown in FIG. 8, the method includes: Step 100a in which the network device sends measurement configuration information to the terminal; Step 201, in which the terminal obtains measurement results of the terminal's first serving cell and at least one first cell; Step 202, in which the terminal decides to perform a cell handover based on measurements of the terminal's first serving cell and at least one first cell; Step 100c of the terminal sending a handover request to the network device; Step 103, in which the network device sends a handover instruction to the terminal.

[0136] Optionally, after step 100b, as shown in FIG. The method may further include step 104, in which the network device determines whether the terminal accesses the at least one first cell based on the measurement result; If the decision to access is made, a step 105 is performed in which access parameters of at least one first cell are set.

[0137] Optionally, as shown in FIG. 10, after step 201: a step 203 in which the terminal decides whether to access at least one first cell based on the measurement results; Step 204 in which the terminal sends a connection establishment request to the network device; The method may further include the step 105 of setting access parameters of the at least one first cell.

[0138] It should be noted that the cell handover method provided in the embodiments of the present application may be performed by a cell handover device or a processing module for performing the cell handover method in the cell handover device. In the embodiments of the present application, the cell handover device provided in the embodiments of the present application will be described by taking the case where the cell handover method is performed by the cell handover device as an example.

[0139] Figure 11 is a structural schematic diagram of the cell handover device provided in this application. As shown in Figure 11, the cell handover device 110 provided in this embodiment: an acquiring module 1101 used for acquiring first information; a processing module 1102 adapted to schedule a cell handover based on the first information; The first information includes at least one of measurement results of a first serving cell and at least one first cell, and scheduling information, the first cell being a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell being cells that share auxiliary equipment.

[0140] In this embodiment, the processing module can schedule cell handover based on measurement results and / or scheduling information of multiple cells, where the multiple cells share auxiliary equipment, and the multiple cells include a first serving cell of the terminal and at least one first cell, where the first cell may be a neighbor cell of the first serving cell or a second serving cell of the terminal. The cell measurement results and / or scheduling information realize a solution for the terminal to perform cell handover in a communication scenario with auxiliary equipment.

[0141] Optionally, when the first information includes a first serving cell of the terminal and at least one measurement result of the first cell, the processing module 1102 specifically: The cell handover scheduling unit is used to schedule a cell handover based on the measurement results of the first serving cell and the at least one first cell, and the operating status of ancillary equipment.

[0142] Optionally, the processing module 1102 specifically: scheduling a cell handover based on measurements of the first serving cell and at least one measurement of the first cell if the auxiliary device is not operational; When the auxiliary device is operating, it is used to schedule cell handover based on measurement results of the first serving cell and at least one first cell of the terminal on the same beam transmitted by the auxiliary device.

[0143] Optionally, the processing module 1102 specifically: scheduling a cell handover if a difference between the measurement result of the second cell and the measurement result of the first serving cell exceeds a first threshold; used for scheduling a cell handover when a difference between the measurement results of the second cell and the first serving cell on the same beam transmitted by the auxiliary device exceeds a second threshold; The second cell is any one of the at least one first cell.

[0144] Optionally, the processing module 1102 specifically: When the serving cells of the terminal include a first serving cell and at least one second serving cell, scheduling a handover of a master-slave serving cell based on measurement results of the first serving cell and at least one second serving cell and an operating state of an auxiliary device; or When the serving cells of the terminal include a first serving cell, the cell handover scheduling section 100 is used to schedule a cell handover based on measurement results of the first serving cell and at least one neighboring cell, and the operating state of auxiliary devices.

[0145] Optionally, the scheduling information includes at least one of the number of terminals within the coverage area of ​​the auxiliary device, service information of the terminals, or transmission beam information of the auxiliary device.

[0146] Optionally, the scheduling information includes transmission beam information of the auxiliary device, and the transmission beam information includes a master-slave relationship of the network side device corresponding to the transmission beam, and the processing module 1102 specifically: When the serving cells of the terminal include a first serving cell and at least one second serving cell, the handover of the master-slave serving cell is scheduled based on the position of the terminal and the master-slave relationship of the network side equipment corresponding to the transmission beam of the auxiliary device, and the master-slave relationship of the transmission beam is determined by the coverage area of ​​the transmission beam of the auxiliary device and the relative position of the network side equipment corresponding to each of the serving cells.

[0147] Optionally, The terminal further includes a transmission module used to send a handover command message to the terminal, the handover command message instructing the terminal to switch from the first serving cell to the second cell or to perform a master-slave serving cell handover, and instructing configuration information of the second cell, where the configuration information of the second cell includes at least one of configuration information of the synchronization signal block SSB of the second cell, system information, and configuration information of the physical downlink control channel PDCCH.

[0148] Optionally, the processing module 1102 further comprises: It is used to determine whether the terminal is within the coverage area of ​​the auxiliary device based on the measurement results of the beam forwarded by the auxiliary device and the measurement results of the beam directly transmitted from the network side device.

[0149] Optionally, the sending module is further used for sending auxiliary device setting information to the terminal, where the auxiliary device setting information includes at least one of the number of cells sharing the auxiliary device, a physical cell identifier PCI, a use time of the auxiliary device, a use period, and a time-frequency domain setting parameter of a reference signal.

[0150] Optionally, the acquisition module 1101 further comprises: used for receiving measurement results of the first serving cell and at least one third cell in the same beam transmitted from the terminal and forwarded by the auxiliary device; The processing module 1102 further comprises: The third cell access parameter setting unit 100 is used to set access parameters of at least one third cell for the terminal based on the measurement result.

[0151] Optionally, the acquisition module 1101 further comprises: receiving a connection establishment request transmitted from the terminal, the connection establishment request being for requesting establishment of a connection with at least one third cell, triggered when a first condition is satisfied, the first condition including a difference between a measurement result of the third cell on the same beam transferred by the auxiliary device and a measurement result of the first serving cell on the same beam transferred by the auxiliary device being less than or equal to a third threshold; The processing module 1102 further comprises: It is used to set access parameters of at least one third cell for the terminal according to the connection establishment request.

[0152] Optionally, the first condition is: a measurement result of the third cell on the same beam forwarded by the auxiliary equipment is greater than or equal to a fourth threshold; A difference between the measurement result of the third cell on the same beam forwarded by the auxiliary equipment and the measurement result of the third cell under a second condition is greater than a fifth threshold; a measurement result of the third cell under the second condition is equal to or greater than a sixth threshold; an arrival time difference between a downlink frame boundary of the third cell and a downlink frame boundary of the first serving cell is less than or equal to a seventh threshold; The second condition includes that the auxiliary equipment is not in operation or that the beam forwarded by the auxiliary equipment is not directed towards the terminal.

[0153] Optionally, the transmitting module further comprises: The measurement setting information of each of the first cells is transmitted to the terminal, and the measurement setting information includes at least one of a reference signal, a measurement period, a measurement time window, and a measurement count.

[0154] Optionally, the transmitting module further comprises: Transmitting a time advance TA to the terminal, the TA being used for communication between the terminal and each of the first serving cell and the first cell.

[0155] Optionally, the acquisition module 1101 further comprises: The device is used to receive instruction information transmitted from a terminal to instruct the terminal to directly communicate with the network-side device; The transmitting module further comprises: The method is used to send a notification message to each network side device of the first cell, the notification message being used to instruct the network side device to disconnect the connection with the terminal.

[0156] The device of this embodiment can be used to implement any of the methods of the above-mentioned network-side method embodiments, and its specific implementation process and technical effects are the same as those of the network-side method embodiments. For details, please refer to the detailed introduction in the network-side method embodiments, and the description will be omitted here.

[0157] Figure 12 is a second structural diagram of the cell handover device provided in this application. As shown in Figure 12, the cell handover device 1200 provided in this embodiment: an acquiring module 1201, used for acquiring measurement results of a first serving cell and at least one first cell of the terminal; a processing module 1202 adapted to perform cell handover based on measurements of the first serving cell and at least one first cell; The first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells that share auxiliary equipment.

[0158] In this embodiment, the processing module can perform cell handover based on measurement results of multiple cells, where the multiple cells share auxiliary equipment, and the multiple cells include a first serving cell of the terminal and at least one first cell, where the first cell may be a neighbor cell of the first serving cell or a second serving cell of the terminal. The cell measurement results and / or scheduling information realize a solution for the terminal to perform cell handover in a communication scenario with auxiliary equipment.

[0159] Optionally, a transmitting module used for transmitting measurement results of the first serving cell and at least one first cell to a network side device, the measurement results being for scheduling cell handover by the network side device; Specifically, it further includes a processing module 1202 used for performing cell handover according to a handover command message sent from a network side device.

[0160] Optionally, the processing module 1202 specifically: determining to perform a cell handover based on measurements of the first serving cell and the at least one first cell; The cell handover is performed in accordance with a handover command message transmitted from the network side device, and the handover command message is transmitted from the network side device in accordance with a handover request transmitted from the terminal.

[0161] Optionally, the processing module 1202 specifically: The cell handover determination unit is used to determine whether to perform a cell handover based on the measurement results of the first serving cell and at least one first cell, and the operating status of ancillary equipment.

[0162] Optionally, the processing module 1202 specifically: determining, if the auxiliary equipment is not operational, to perform a cell handover based on measurements of the first serving cell and at least one measurement of the first cell; When the auxiliary device is operating, it is used to decide to perform cell handover based on measurement results of the first serving cell and at least one first cell of the terminal on the same beam transmitted by the auxiliary device.

[0163] Optionally, the processing module 1202 specifically: determining to perform a cell handover if a difference between a measurement result of a second cell and a measurement result of the first serving cell exceeds a first threshold; used for determining to perform cell handover when a difference between the measurement result of the second cell and the measurement result of the first serving cell on the same beam transmitted by the auxiliary device exceeds a second threshold; The second cell is any one of the at least one first cell.

[0164] Optionally, the processing module 1202 specifically: When the serving cells of the terminal include a first serving cell and at least one second serving cell, determining to perform a handover of a master-slave serving cell based on measurement results of the first serving cell and at least one second serving cell and an operating state of an auxiliary device; or When the serving cells of the terminal include a first serving cell, the cell handover determination is made based on the measurement results of the first serving cell and at least one neighboring cell, and the operating state of the auxiliary device.

[0165] Optionally, the sending module further comprises: sending a connection establishment request to the network side device, the connection establishment request being for requesting establishment of a connection with the at least one third cell, triggered when a first condition is met, the first condition including that a difference between a measurement result of the third cell on the same beam transferred by the auxiliary device and a measurement result of the first serving cell on the same beam transferred by the auxiliary device is less than or equal to a third threshold; The obtaining module 1201 is used for receiving the access parameters of the at least one third cell sent from the network side device.

[0166] Optionally, the acquisition module 1201 specifically: Used for obtaining a measurement result of the first serving cell and at least one measurement result of the first cell based on measurement configuration information; The sending module is further configured to send the measurement result of the first serving cell and at least one measurement result of the first cell to a network side device, and the measurement configuration information includes at least one of a reference signal, a measurement period, a measurement time window, and a measurement count.

[0167] Optionally, the acquisition module 1201 further comprises: Used to obtain measurement results of beams directly transmitted from the network side device and measurement results of beams forwarded by the auxiliary device; Specifically, the processing module 1202: It is used to switch to direct communication with the network side device based on the measurement results of the beam transmitted directly from the network side device and the measurement results of the beam transferred by the auxiliary device.

[0168] Optionally, the processing module 1202 specifically: This is used by the terminal to disconnect from the second serving cell.

[0169] The device of this embodiment can be used to perform any of the methods of the above-mentioned terminal-side method embodiments, and its specific implementation process and technical effects are the same as those of the terminal-side method embodiments. For details, please refer to the detailed introduction in the terminal-side method embodiments, and the description will be omitted here.

[0170] In the embodiments of the present application, the cell handover device may be a device or electronic device having an operating system, or may be a component, integrated circuit, or chip in a terminal. The device or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above. The non-mobile terminal may be, but is not limited to, a server, a network-attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine (ATM), a kiosk, etc., but is not specifically limited in the embodiments of the present application.

[0171] The cell handover device provided in the embodiments of the present application realizes each step realized by the method embodiments of Figures 5 to 10 and can achieve similar technical effects, and to avoid repeated description, they will be omitted here.

[0172] Optionally, as shown in Fig. 13, an embodiment of the present application further provides a communication device 1300 including a processor 1301, a memory 1302, and a program or command stored in the memory 1302 and executable on the processor 1301. For example, if the communication device 1300 is a terminal, the program or command executed by the processor 1301 can realize each step of the above-mentioned embodiment of the cell handover method and achieve the same technical effect. If the communication device 1300 is a network-side device, the program or command executed by the processor 1301 can realize each step of the above-mentioned embodiment of the cell handover method and achieve the same technical effect, which will be omitted here to avoid repetition.

[0173] An embodiment of the present application is a terminal comprising a processor and a communication interface, wherein the communication interface is used for obtaining measurement results of a first serving cell and at least one first cell of the terminal, and the processor is used for performing cell handover based on the measurement results of the first serving cell and the at least one first cell; The present invention further provides a terminal in which the first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells sharing auxiliary equipment. The terminal embodiment corresponds to the terminal-side method embodiment described above, and the implementation steps and realization modes of the method embodiment described above can be applied to the terminal embodiment, and similar technical effects can be achieved. Specifically, Figure 14 is a schematic diagram of the hardware structure of a terminal implementing the embodiment of the present application.

[0174] The terminal 1000 includes at least some of the following components, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.

[0175] Those skilled in the art will understand that the terminal 1000 may further include a power source (e.g., a battery) for powering each component, and that the power source may be logically connected to the processor 1010 through a power management system, which may further realize functions such as charge / discharge management and power consumption management. The structure of the terminal shown in FIG. 14 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and description thereof will be omitted here.

[0176] In the embodiment of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 that processes image data of still or video images captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 10042. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. The other input devices 10072 may include, but are not limited to, a physical keyboard, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a control lever, and description thereof will be omitted here.

[0177] In the embodiment of the present application, the high frequency unit 1001 receives downlink data from the network side device, processes the data in the processor 1010, and transmits uplink data to the network side device. Typically, the high frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a receiver / transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0178] The memory 1009 can be used to store software programs or commands and various data. The memory 1009 may primarily include a program or command storage area capable of storing an operating system, an application or command required for at least one function (e.g., audio playback function, image playback function, etc.), and a data storage area. The memory 1009 may also include high-speed random access memory or nonvolatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, the memory 1009 may include at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

[0179] The processor 1010 may include one or more processing units. Optionally, the processor 1010 may integrate an application processor that mainly processes an operating system, a user interface, and applications or commands, and a modem processor that mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor need not be integrated into the processor 1010.

[0180] The processor 1010 obtains measurement results of a first serving cell and at least one first cell for the terminal; and performing a cell handover based on measurement results of the first serving cell and at least one first cell; The first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells that share auxiliary equipment.

[0181] In this embodiment, the processing module can perform cell handover based on measurement results of multiple cells, where the multiple cells share auxiliary equipment, and the multiple cells include a first serving cell of the terminal and at least one first cell, where the first cell may be a neighbor cell of the first serving cell or a second serving cell of the terminal. The cell measurement results and / or scheduling information realize a solution for the terminal to perform cell handover in a communication scenario with auxiliary equipment.

[0182] Optionally, the radio frequency unit 1001 comprises: sending measurement results of the first serving cell and at least one first cell to a network side device, the measurement results being used for scheduling a cell handover by the network side device; The processor 1010 is specifically used for performing cell handover according to a handover command message sent from a network side device.

[0183] In the above embodiment, the network side equipment can schedule cell handover based on measurement results of multiple cells, where the multiple cells share auxiliary equipment, and the multiple cells include a first serving cell of the terminal and at least one first cell, where the first cell may be a neighbor cell of the first serving cell or a second serving cell of the terminal. The cell measurement results and / or scheduling information realize a solution for the terminal to perform cell handover in a communication scenario with auxiliary equipment.

[0184] Optionally, the processor 1010 may specifically: determining to perform a cell handover based on measurements of the first serving cell and the at least one first cell; The cell handover is performed in accordance with a handover command message transmitted from the network side device, and the handover command message is transmitted from the network side device in accordance with a handover request transmitted from the terminal.

[0185] In the above embodiment, the terminal determines whether to perform a cell handover based on measurement results of multiple cells, and can further schedule the cell handover through interaction with a network side device, where the multiple cells share auxiliary devices, and the multiple cells include a first serving cell of the terminal and at least one first cell, where the first cell may be a neighbor cell of the first serving cell or a second serving cell of the terminal. The cell measurement results and / or scheduling information realize a solution for the terminal to perform cell handover in a communication scenario with auxiliary devices.

[0186] Optionally, the processor 1010 may specifically: The cell handover determination unit is used to determine whether to perform a cell handover based on the measurement results of the first serving cell and at least one first cell, and the operating status of ancillary equipment.

[0187] Optionally, the processor 1010 may specifically: determining, if the auxiliary equipment is not operational, to perform a cell handover based on measurements of the first serving cell and at least one measurement of the first cell; When the auxiliary device is operating, it is used to decide to perform cell handover based on measurement results of the first serving cell and at least one first cell of the terminal on the same beam transmitted by the auxiliary device.

[0188] Optionally, the processor 1010 may specifically: determining to perform a cell handover if a difference between a measurement result of a second cell and a measurement result of the first serving cell exceeds a first threshold; used for determining to perform cell handover when a difference between the measurement result of the second cell and the measurement result of the first serving cell on the same beam transmitted by the RIS device exceeds a second threshold; The second cell is any one of the at least one first cell.

[0189] In the above embodiment, since the cell signal is affected by beam forwarding by the auxiliary equipment, the operating status of the auxiliary equipment affects the cell measurement result, and by performing cell handover based on the cell measurement result and the operating status of the auxiliary equipment, the cell handover decision becomes more accurate.

[0190] Optionally, the processor 1010 may specifically: When the serving cells of the terminal include a first serving cell and at least one second serving cell, determining to perform a handover of a master-slave serving cell based on measurement results of the first serving cell and at least one second serving cell and an operating state of an auxiliary device; or When the serving cells of the terminal include a first serving cell, the cell handover determination is made based on the measurement results of the first serving cell and at least one neighboring cell, and the operating state of the auxiliary device.

[0191] In the above embodiment, the handover of the master-slave serving cell enables soft handover of the cell, ensuring the continuity of the communication service without affecting the communication of the terminal.

[0192] Optionally, the radio frequency unit 1001 further comprises: sending a connection establishment request to the network side device, the connection establishment request being for requesting establishment of a connection with the at least one third cell, and being triggered when a first condition is met, the first condition including a difference between a measurement result of the third cell on the same beam transferred by the RIS device and a measurement result of the first serving cell on the same beam transferred by the RIS device being less than or equal to a third threshold; The access parameter of the at least one third cell is received from the network side device.

[0193] In the above embodiment, since the terminal accesses multiple cells, signals from other cells also serve the terminal and do not become interference signals, thereby reducing interference between cells.

[0194] Optionally, the processor 1010 may specifically: Used for obtaining a measurement result of the first serving cell and at least one measurement result of the first cell based on measurement configuration information; The radio frequency unit 1001 is specifically used to transmit the measurement results of the first serving cell and at least one measurement result of the first cell to the network side equipment, and the measurement configuration information includes at least one of a reference signal, a measurement period, a measurement time window, and a measurement count.

[0195] Optionally, the processor 1010 may further obtaining measurement results of beams transmitted directly from the network side device and measurement results of beams forwarded by the auxiliary device; It is used to switch to direct communication with the network side device based on the measurement results of the beam transmitted directly from the network side device and the measurement results of the beam transferred by the auxiliary device.

[0196] Optionally, the processor 1010 may specifically: This is used by the terminal to disconnect from the second serving cell.

[0197] In the above embodiment, after the terminal leaves the coverage area of ​​the auxiliary device while moving, it switches to a state of directly communicating with the network side device, eliminating the need for forwarding by the auxiliary device, and improving communication efficiency.

[0198] An embodiment of the present application further provides a network side device comprising a processor and a communication interface, wherein the communication interface is used for obtaining first information, and the processor is used for scheduling cell handover based on the first information, the first information including at least one of a measurement result of a first serving cell of a terminal and at least one of the first cells, or scheduling information, the first cell being a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell being cells sharing an auxiliary device. This embodiment of the network side device corresponds to the above embodiment of the method for the network side device, and each implementation step and realization form of the above embodiment of the method can be applied to this embodiment of the network side device, and similar technical effects can be achieved.

[0199] Specifically, an embodiment of the present application further provides a network side device. As shown in Fig. 15, the network device 700 includes an antenna 71, a radio frequency device 72, and a baseband device 73. The antenna 71 is connected to the radio frequency device 72. In the uplink direction, the radio frequency device 72 receives information through the antenna 71 and transmits the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be transmitted and transmits it to the radio frequency device 72, which processes the received information and then transmits it through the antenna 71.

[0200] The band processing device may be located in a baseband device 73, and in the above embodiment, the method performed by the network side equipment can be realized in the baseband device 73, which includes a processor 74 and a memory 75.

[0201] The baseband device 73 may include, for example, at least one baseband board, on which multiple chips are provided, and as shown in FIG. 15, one of the chips is, for example, a processor 74 connected to the memory 75 to call programs in the memory 75 and perform the operations of the network equipment shown in the above method embodiments.

[0202] The baseband device 73 may further include a network interface 76 for information interaction with the radio frequency device 72, the interface being, for example, a common public radio interface (CPRI).

[0203] Specifically, the network side device of this embodiment of the present invention further includes a command or program stored in memory 75 and executable on processor 74, and processor 74 invokes the command or program in memory 75 to execute the method performed by each module shown in Figure 11, achieving similar technical effects, which will not be described again here to avoid repetition.

[0204] The embodiments of the present application further provide a readable storage medium, which stores a program or command, and when the program or command is executed by a processor, it realizes each step of the above-mentioned embodiment of the cell handover method and achieves the same technical effect, which will be omitted here to avoid repetitive description.

[0205] The processor may be the processor in the terminal described in the above embodiments. The readable storage medium may include a computer readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0206] The embodiments of the present application also provide a chip, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled together, the processor executing a program or command to realize each step of the above-mentioned cell handover method embodiment, which can achieve similar technical effects, and will be omitted here to avoid repetitive description.

[0207] The chip described in the embodiments of the present application may be called a system on a chip, a system chip, a chip system, or an SoC.

[0208] The embodiments of the present application further provide a computer program / program product, which is stored in a non-transitory storage medium and executed by at least one processor to realize each step of the above-mentioned cell handover method embodiments and achieve similar technical effects, and will not be described again here to avoid repetition.

[0209] It should be noted that, as used herein, the terms "comprise," "consist," and any other variations thereof are intended to include a non-exclusive inclusion, such that a process, method, article, or apparatus comprising a set of elements includes not only those elements but also other elements not expressly specified or inherent in such process, method, article, or apparatus. Unless otherwise specified, an element qualified by the phrase "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. Furthermore, the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed herein, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functionality involved. For example, the methods described above may be performed in a different order than described, and further, steps may be added, omitted, or combined. Furthermore, features described with reference to some examples may be combined with other examples.

[0210] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform, and of course, they can also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solutions of the present application can be substantially embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a plurality of commands that cause a terminal (which may be a mobile phone, a computer, a server, a network device, etc.) to execute the methods described in each embodiment of the present application.

[0211] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the teachings of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. A network side device acquires first information; The network side device schedules a cell handover based on the first information; The first information includes at least one of measurement results of a first serving cell and at least one first cell and scheduling information, the first cell is a neighboring cell of the first serving cell or a second serving cell of a terminal, and the first serving cell and the at least one first cell are cells sharing auxiliary equipment; When the first information includes a first serving cell of the terminal and at least one measurement result of the first cell, the step of scheduling a cell handover by a network side device based on the first information includes: The network side equipment schedules a cell handover based on the measurement results of the first serving cell and at least one first cell, and an operation state of an auxiliary equipment; The scheduling information includes at least one of the number of terminals within the coverage area of ​​the auxiliary device, service information of the terminal, or transmission beam information of the auxiliary device; A cell handover method.

2. The step of scheduling a cell handover by the network side equipment based on a measurement result of a first serving cell and at least one first cell of the terminal and an operation state of an auxiliary equipment includes: If the auxiliary device is not working, the network side device schedules a cell handover based on a measurement result of the first serving cell and at least one measurement result of the first cell; The cell handover method of claim 1, further comprising: if the auxiliary device is operating, the network side device schedules a cell handover based on measurement results of the first serving cell and at least one first cell of the terminal on the same beam transferred by the auxiliary device.

3. The step of scheduling a cell handover by the network side equipment based on a measurement result of a first serving cell of the terminal and at least one measurement result of a first cell, The method includes the step of: when a difference between a measurement result of a second cell and a measurement result of the first serving cell exceeds a first threshold, the network side device schedules a cell handover; Or, The step of scheduling a cell handover by the network side equipment based on a measurement result of a first serving cell and at least one first cell of the terminal on the same beam transferred by the auxiliary equipment, The method includes a step of the network side device scheduling a cell handover when a difference between a measurement result of the second cell and the first serving cell in the same beam transferred by the auxiliary device exceeds a second threshold value; The cell handover method according to claim 2 , wherein the second cell is any one of the at least one first cell.

4. The step of scheduling a cell handover by the network side equipment based on a measurement result of a first serving cell and at least one first cell of the terminal and an operation state of an auxiliary equipment includes: When the serving cells of the terminal include a first serving cell and at least one second serving cell, the network side device schedules a handover of a master-slave serving cell based on the measurement results of the first serving cell and at least one second serving cell and the operating state of an auxiliary device; or The cell handover method according to claim 1, further comprising: if the serving cells of the terminal include only a first serving cell, the network side equipment schedules a cell handover based on measurement results of the first serving cell and at least one neighboring cell, and an operating state of an auxiliary device.

5. The scheduling information includes forwarding beam information of the auxiliary device, and the forwarding beam information includes a master-slave relationship of a network side device corresponding to the forwarding beam, and the step of the network side device scheduling a cell handover based on the first information includes: The cell handover method of claim 1, further comprising a step of: when the serving cells of the terminal include a first serving cell and at least one second serving cell, the network side equipment schedules a handover of a master-slave serving cell based on the position of the terminal and a master-slave relationship of the network side equipment corresponding to the forwarding beam of the auxiliary equipment, wherein the master-slave relationship of the forwarding beam is determined by the coverage range of the forwarding beam of the auxiliary equipment and the relative position of the network side equipment corresponding to each of the serving cells.

6. The step of scheduling a cell handover by the network side device based on the first information includes:

4. The cell handover method according to claim 3, further comprising a step of: the network side device transmitting a handover command message to the terminal, the handover command message instructing the terminal to switch from the first serving cell to the second cell or to perform a master-slave serving cell handover, and instructing configuration information of the second cell, the configuration information of the second cell including at least one of configuration information of a synchronization signal block (SSB) of the second cell, system information, and configuration information of a physical downlink control channel (PDCCH).

7. Before the step of scheduling a cell handover by the network side device based on the first information, The cell handover method of claim 1, further comprising a step of determining, by the network side equipment, that the terminal is within the coverage area of ​​the auxiliary equipment based on a measurement result of a beam forwarded by the auxiliary equipment and a measurement result of a beam directly transmitted from the network side equipment.

8. Prior to the step of determining that the terminal is within the coverage area of ​​the auxiliary device, The network side device further includes a step of transmitting auxiliary device setting information to the terminal, the auxiliary device setting information including at least one of the number of cells sharing the auxiliary device, a physical cell identifier PCI, a use time of the auxiliary device, a use period, and a time-frequency domain setting parameter of a reference signal; The cell handover method according to claim 7.

9. After the step of determining that the terminal is within the coverage area of ​​the auxiliary device, receiving, by the network side device, measurement results of the first serving cell and at least one third cell on the same beam forwarded by the auxiliary device from the terminal; The network side device further includes a step of configuring at least one access parameter of the third cell for the terminal based on the measurement result. The cell handover method according to claim 7.

10. After the step of determining that the terminal is within the coverage area of ​​the auxiliary device, a step of receiving, by the network side equipment, a connection establishment request transmitted from the terminal, the connection establishment request being for requesting to establish a connection with at least one third cell, triggered when a first condition is satisfied, the first condition including a difference between a measurement result of the third cell on the same beam transferred by the auxiliary equipment and a measurement result of the first serving cell on the same beam transferred by the auxiliary equipment being less than or equal to a third threshold; and further comprising: the network side device configuring access parameters of the at least one third cell for the terminal according to the connection establishment request. The cell handover method according to claim 7.

11. The first condition is: a measurement result of the third cell on the same beam forwarded by the auxiliary device is greater than or equal to a fourth threshold; A difference between the measurement result of the third cell on the same beam forwarded by the auxiliary device and the measurement result of the third cell under a second condition is greater than a fifth threshold value; A measurement result of the third cell under the second condition is equal to or greater than a sixth threshold; and a time difference of arrival between a downlink frame boundary of the third cell and a downlink frame boundary of the first serving cell is less than or equal to a seventh threshold; The cell handover method according to claim 10, wherein the second condition includes that the auxiliary equipment is not operational or that a beam forwarded by the auxiliary equipment is not directed to the terminal.

12. A step of the network side device transmitting measurement configuration information of each third cell to the terminal, the measurement configuration information including at least one of a reference signal, a measurement period, a measurement time window, and a measurement count. The cell handover method of claim 1 , further comprising:

13. a step of the network side device transmitting a time advance TA to the terminal, the TA being for communication between the terminal and each of the first serving cell and the first cell; The cell handover method of claim 9, further comprising:

14. receiving instruction information for instructing the network side device to directly communicate with the network side device, the instruction information being transmitted from the terminal; a step of the network side equipment sending a notification message to each network side equipment of the first cell, the notification message being for instructing each network side equipment of the first cell to disconnect a connection with the terminal; The cell handover method of claim 1 , further comprising:

15. A terminal obtains measurement results of a first serving cell and at least one first cell of the terminal; performing a cell handover by the terminal based on measurement results of the first serving cell and at least one first cell; A cell handover method, wherein the first cell is a neighboring cell of the first serving cell or a second serving cell of the terminal, and the first serving cell and the at least one first cell are cells sharing auxiliary equipment.

16. A network side device comprising a processor, a memory, and a program or command stored in the memory and executable on the processor, the program or command being executed by the processor to realize steps of the cell handover method according to any one of claims 1 to 14.

17. A terminal comprising a processor, a memory, and programs or commands stored in said memory and executable on said processor, said programs or commands, when executed by said processor, implementing the steps of the cell handover method according to claim 15.

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