WO2023040867A1 - 小区切换方法、装置、终端及网络侧设备 - Google Patents
小区切换方法、装置、终端及网络侧设备 Download PDFInfo
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- WO2023040867A1 WO2023040867A1 PCT/CN2022/118613 CN2022118613W WO2023040867A1 WO 2023040867 A1 WO2023040867 A1 WO 2023040867A1 CN 2022118613 W CN2022118613 W CN 2022118613W WO 2023040867 A1 WO2023040867 A1 WO 2023040867A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present application belongs to the technical field of communications, and in particular relates to a cell handover method, device, terminal and network side equipment.
- Reconfigurable intelligent surface is an emerging artificial material device; RIS device can dynamically/semi-statically change its own electromagnetic properties, affecting the reflection/ refraction behavior. RIS equipment realizes functions such as beam scanning/beam forming by manipulating the reflected/refracted waves of electromagnetic waves. RIS devices can be used in scenarios where hotspot traffic is enhanced or coverage holes are filled.
- RIS equipment is independent of the base station, and provides communication services for terminals in coverage holes or cell edge areas by forwarding/reflecting signals from the base station.
- the RIS equipment can be shared with cells of multiple base stations, that is, to provide services for terminals in different cells respectively.
- the RIS equipment cyclically forwards the signals of base station 1 and base station 2 in the form of time division multiplexing, and the beam directed at the terminal can be used to forward the signal of base station 1, or it can In another time period, it is used to forward the signal of the base station 2 . Therefore, in the above scenario, due to the introduction of RIS equipment, the signal strength distribution in the cell border area becomes very complicated. It no longer only changes with the distance of the base station, but is also affected by the coverage planning of the RIS equipment. How to perform cell handover has become an issue in the field Problems that technicians need to solve urgently.
- Embodiments of the present application provide a cell switching method, device, terminal, and network side equipment, which can solve the problem of cell switching in a communication scenario with auxiliary equipment.
- a cell handover method comprising:
- the network side device acquires the first information
- the network side device schedules cell handover according to the first information
- the first information includes at least one of the following: measurement results of the 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 the The second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- a cell handover method comprising:
- the terminal acquires measurement results of the first serving cell of the terminal and at least one first cell;
- the first cell is an adjacent cell of the first serving cell, or a second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- a cell switching device including:
- an acquisition module configured to acquire the first information
- a processing module configured to schedule cell handover according to the first information
- the first information includes at least one of the following: measurement results of the 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 the The second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- a cell handover device including:
- an obtaining module configured to obtain measurement results of the terminal's first serving cell and at least one first cell
- a processing module configured to perform cell handover based on measurement results of the first serving cell and at least one first cell
- the first cell is an adjacent cell of the first serving cell, or a second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- a network-side device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, the program or instruction being executed by the When executed by the processor, the steps of the method described in the first aspect are realized.
- a network side device including a processor and a communication interface, wherein the communication interface is used to obtain first information, and the processor is used to schedule cell handover according to the first information; wherein, the The first information includes at least one of the following: the first serving cell of the terminal and measurement results of at least one first cell, or scheduling information; the first cell is a neighboring cell of the first serving cell, or the terminal The second serving cell; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- a terminal in a seventh aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, when the program or instruction is executed by the processor. The steps of the method described in the second aspect are realized.
- a terminal including a processor and a communication interface, wherein the communication interface is used to obtain measurement results of a first serving cell of the terminal and at least one first cell, and the processor is used to obtain a measurement result based on performing cell handover based on the measurement results of the first serving cell and at least one first cell;
- the first cell is an adjacent cell of the first serving cell, or a second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- a readable storage medium is provided, and programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method described in the first aspect are realized, or the steps of the method described in the first aspect are realized, or The steps of the method described in the second aspect.
- a chip in a tenth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect , or implement the method described in the second aspect.
- a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the first A step of the method described in the first aspect or the second aspect.
- the network side device can schedule cell handover based on the measurement results and/or scheduling information of multiple cells, the multiple cells share the use of auxiliary equipment, and the multiple cells include: the first serving cell of the terminal and at least one first cell; wherein, the first cell may be a neighboring cell of the first serving cell, or a second serving cell of the terminal, and the measurement results and/or scheduling information of the cell are used to realize the communication scenario with auxiliary equipment A solution for a terminal to perform cell handover.
- Fig. 1 is one of the scene diagrams provided by the embodiment of the present application.
- FIG. 2 is a structural diagram of a wireless communication system applicable to an embodiment of the present application
- Fig. 3 is the second schematic diagram of the scene provided by the embodiment of the present application.
- Fig. 4 is the third schematic diagram of the scene provided by the embodiment of the present application.
- Fig. 5 is one of the schematic flow charts of the cell handover method provided by the embodiment of the present application.
- FIG. 6 is the second schematic flow diagram of the cell handover method provided by the embodiment of the present application.
- Fig. 7 is one of the interactive flow diagrams of the cell handover method provided by the embodiment of the present application.
- FIG. 8 is the second schematic diagram of the interaction process of the cell handover method provided by the embodiment of the present application.
- FIG. 9 is the third schematic diagram of the interaction process of the cell handover method provided by the embodiment of the present application.
- FIG. 10 is the fourth schematic diagram of the interaction process of the cell handover method provided by the embodiment of the present application.
- FIG. 11 is one of the structural schematic diagrams of the cell handover device provided by the embodiment of the present application.
- FIG. 12 is the second structural schematic diagram of the cell handover device provided by the embodiment of the present application.
- FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- FIG. 14 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application.
- FIG. 15 is a schematic structural diagram of a network device according to an embodiment of the present application.
- first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
- “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced
- LTE-A Long Term Evolution-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency-Division Multiple Access
- system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
- NR New Radio
- the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
- 6G 6th Generation
- Fig. 2 shows a structural diagram of a wireless communication system to which the embodiment of the present application is applicable.
- the wireless communication system includes a terminal 11 and a network side device 12 .
- the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, robots, wearable devices (Wearable Device), vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture etc.) and other terminal-side devices, wearable devices include: smart watches, smart bracelets, smart
- the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
- the method of the embodiment of the present application can be applied to another wireless communication system, the wireless communication system includes a terminal, an auxiliary device, and a network side device, where the auxiliary device includes: RIS device or relay device,
- the relay device may be a Layer 1 (Layer 1, L1) relay (relay/repeator) with a beamforming function.
- the RIS device is composed of an artificial surface at the front end and a control module at the rear end.
- the artificial surface at the front end is composed of closely and uniformly arranged artificial device units; the electromagnetic characteristics of the device units are affected by the control signal/bias voltage of the device, and different control signals/bias voltages correspond to different reflection coefficients/refraction coefficients; the reflection coefficient
- the change of /refraction index will affect the phase and/or intensity of the reflection signal/refraction signal; microscopically, each device unit leads to an independent reflection/refraction signal, and macroscopically, these signals are superimposed to realize the manipulation of electromagnetic waves.
- the control signal/bias voltage is provided by the back-end control module.
- RIS devices can be used in scenarios where hotspot traffic is enhanced or coverage holes are filled.
- Future wireless services will have data services with extremely high traffic volumes (such as AR/VR, high-definition video, etc.), or other hotspot services that require high wireless channels.
- the serving cell dynamically activates auxiliary equipment (such as transceiver nodes TRP and RIS equipment), thereby increasing the available beams of hotspot users and meeting hotspot service needs.
- the RIS device is independent of the base station and can be deployed at a visible location away from the base station to forward/reflect the signal of the base station to provide communication services for coverage holes or cell edge areas. Through reasonable node deployment, RIS devices can avoid being blocked by obstructions and ensure good signal coverage.
- Smart surface RIS devices can affect the ability of the surrounding wireless signal propagation environment. While the smart surface RIS device generates beams in different directions, it affects the energy distribution of the reflected signal and changes the energy and phase distribution of multipath in the wireless environment. When the smart surface RIS device changes, the signal strength and channel response parameters of the received signal of the terminal device/network device need to be re-measured/estimated.
- Channel changes caused by RIS devices are abrupt, while traditional channel changes are slow.
- the control voltage change of the device in the RIS device can complete the high-low level conversion in nanoseconds to microseconds us, while the traditional wireless channel change speed or channel time correlation is determined by the change speed of the surrounding propagation environment (including the mobile speed of the terminal, The moving speed of reflecting/occluded objects), the wireless channel changes slowly in a low-speed environment, and the time correlation can reach milliseconds or longer.
- the channel change caused by RIS equipment is periodic, while the traditional channel change is absolutely random.
- the change of the RIS equipment and the impact of the RIS equipment on the surrounding channel environment are controlled by the control module of the RIS equipment, and the RIS equipment can periodically change the RIS reflection parameters.
- the RIS equipment can periodically change the RIS reflection parameters. In a slowly changing channel environment, if other parameters of the channel environment do not change within several change cycles of the RIS device, then the receiving channel response of the terminal will show a characteristic of periodic change.
- the RIS device or the L1 relay is deployed at the cell edge to enhance the signal quality of the cell edge users.
- RIS devices can only transmit signals to RIS devices when base stations send signals to RIS devices or when terminals within the coverage area of RIS devices send uplink signals to RIS devices.
- the effective signal is forwarded, and the RIS equipment is not working in other time periods.
- the terminals under the coverage of the corresponding RIS equipment are in the dormant/silent state or directly communicate with the base station according to the instructions of the base station during the time period when the RIS equipment is not working.
- the base station needs to ensure communication services with terminals in all directions, so it can only send downlink signals to RIS equipment in a part of the time period, or receive uplink signals sent by terminals under the coverage of RIS equipment.
- the RIS device can forward the signals of the corresponding base stations of other cells in other time periods, so as to provide services for edge users of other cells.
- users in border areas of multiple cells share the coverage enhancement service provided by the RIS device in a time-division multiplexing manner.
- the RIS equipment is shared by multiple cells, that is, services are provided to users in different cells.
- the coverage of the RIS device is the transition area of multiple cells, enabling flexible cell handover for users and avoiding hard cell handover when user signal quality is too low.
- the signals of multiple base stations observed on the terminal side are affected by the forwarding beam of the RIS equipment at the same time. That is, the RIS beam directed to the terminal can be used to forward the signal of base station 1, and can also be used to forward the signal of base station 2 in another time period. From the perspective of the terminal, the signals of base station 1 and base station 2 are forwarded by the same beam of the RIS device, so the signal strengths of base station 1 and base station 2 are also similar.
- auxiliary equipment such as RIS equipment
- the signal strength distribution in the border area of the cell becomes very complicated. It no longer only changes with the distance of the base station, but is also affected by the coverage planning of the RIS equipment. Problems to be solved urgently by those skilled in the art.
- the network side device schedules cell handover according to the measurement results of the first serving cell and at least one first cell sharing the auxiliary equipment, and/or scheduling information and/or a handover request of the terminal.
- Fig. 5 is one of the schematic flowcharts of the cell handover method provided by the embodiment of the present application. As shown in Figure 5, the cell handover method provided in this embodiment includes:
- Step 101 the network side device acquires first information
- the first information includes at least one of the following items: measurement results of the 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 the terminal; A serving cell and at least one first cell are cells that share the auxiliary equipment.
- the auxiliary equipment can be shared and used by multiple cells. It can be understood that the network-side devices of multiple cells share the auxiliary device in a time-division or space-division multiplexing manner.
- Time-division multiplexing means that different network-side devices control the auxiliary device in different time periods, and the auxiliary device performs beam forwarding on the downlink signal of the corresponding network-side device or the uplink signal of the terminal in the corresponding cell within the corresponding time period.
- the space division multiplexing method means that different network-side devices send signals to the auxiliary device with beams in different directions within the same time period, and the auxiliary device forwards the incoming signals from different directions to different beam directions to distinguish signals from different cells.
- the terminals in the beam area provide signals to maximize the use of time and space resources and enhance the signal quality in the cell edge area.
- the network side device acquires the first information, and the first information may include: measurement results and/or scheduling information, the measurement results may be the measurement results of the first serving cell and the first cell of the terminal, and optionally, the measurement results It is reported by the terminal to the network side device.
- the scheduling information may include at least one of the following: the number of terminals within the coverage of the auxiliary device, service information of the terminals, or forwarding beam information of the auxiliary device.
- the forwarding beam information of the auxiliary device includes, for example, at least one of the following: information such as a reference signal corresponding to the forwarding 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 terminal within the coverage of the auxiliary device.
- the terminal may have multiple serving cells, the first serving cell may be the primary serving cell of the terminal, that is, the primary serving cell, and the second serving cell may be the secondary serving cell of the terminal, that is, the secondary serving cell.
- the terminal can switch between the master and slave serving cells between the first serving cells and the second serving cells.
- the terminal can also switch between the serving cell and the neighboring cell.
- Step 102 the network side device schedules cell handover according to the first information.
- the network-side device schedules cell handover according to the first information. Assuming that the first information includes measurement results, the cell handover is scheduled according to the measurement results, that is, the measurement results of different cells are compared, and if the handover conditions are met, the terminal is scheduled for cell handover. For example, the terminal is handed over from the current first serving cell to the target cell, or a master-slave cell handover is performed, that is, the target cell serves as the master serving cell, and the current first serving cell serves as the slave serve cell.
- the handover condition includes, for example: the measurement result of the target cell to be handed over is better than the measurement result of the current first serving cell, and may further include the difference between the measurement result of the target cell to be handed over and the measurement result of the current first serving cell greater than a certain threshold, which may be preset.
- the network side device determines whether the terminal performs cell switching according to the scheduling information. For example, the number of terminals in the current serving cell is large, and the number of terminals served in other cells is small.
- the serving cell is handed over to another cell.
- 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, and the terminal may be handed over to another cell providing the voice service.
- the network side device may also comprehensively consider the measurement result and the scheduling information to judge the cell handover.
- the network side device schedules cell handover according to the handover request of the terminal.
- the terminal can decide whether to perform cell handover based on the measurement results of different cells. If the cell handover is performed, the terminal sends a handover request to the network side device, so that the network side device schedules the cell handover.
- the network side device can schedule cell handover for the terminal based on the measurement results and/or scheduling information of multiple cells.
- the plurality of cells share auxiliary equipment, and the plurality of cells include: a first serving cell of the terminal and at least one first cell; wherein, the first cell may be a neighboring cell of the first serving cell, or a second serving cell of the terminal , a solution for a terminal to perform cell handover in a communication scenario with an auxiliary device is realized through cell measurement results and/or scheduling information.
- the first information includes the first serving cell of the terminal and the measurement results of at least one first cell, and step 102 may specifically be implemented in the following manner:
- the network side device schedules cell handover according to the measurement results of the first serving cell and the at least one first cell, and the working state of the auxiliary device.
- the working state of the auxiliary equipment includes a working state and a non-working state.
- the auxiliary device is in the working state, that is, when the auxiliary device is working, the auxiliary device forwards the signal of the network side device, or forwards the uplink signal sent by the terminal.
- the auxiliary device is in a non-working state, that is, when the auxiliary device is not working, the auxiliary device does not forward a signal for any network-side device.
- the measurement results of the plurality of cells will be affected by the working state of the auxiliary device, and the network side device needs to consider the working state of the auxiliary device when judging whether the terminal performs cell handover.
- the step "the network-side device schedules cell handover according to the measurement results of the first serving cell and at least one first cell, and the working status of the auxiliary device” may be implemented in the following manner:
- the network side device schedules cell switching according to the measurement result of the first serving cell and the measurement result of at least one first cell;
- the network side device schedules cell switching according to the measurement results of the terminal's first serving cell and at least one first cell under the same beam forwarded by the auxiliary device.
- the auxiliary device when the auxiliary device is not working, it can measure the signals of multiple cells, that is, the measurement results of the current first serving cell and the measurement results of the first cell can be obtained. At this time, the signals of the cells are not affected by the forwarding beam of the auxiliary device. Impact.
- the time period during which the auxiliary device does not work may be a time window explicitly configured by the network side device, or implicitly derived from the available time window for each cell served by the auxiliary device. This solution may be applicable to a scenario where the time period during which the auxiliary device is occupied by the first cell and the configuration of the beam are unknown.
- the auxiliary device When the auxiliary device is working, the current first serving cell of the terminal and the first cell share the auxiliary device, so the signals of these cells are affected by the forwarding beam of the auxiliary device.
- the measurement results are the measurement results of these cells under the same beam forwarded by the auxiliary device.
- the terminal obtains the current measurement result of the first serving cell under at least one beam forwarded by the auxiliary device, for example, at least one of the three beams in Figure 1, and obtains at least one beam forwarded by the auxiliary device of the first cell.
- the at least one beam corresponding to the first cell is the same beam as the at least one beam corresponding to the first serving cell.
- at least one beam corresponding to the first serving cell is beam 1, and at least one beam corresponding to the first cell is also beam 1.
- Processing the measurement results of the cell under at least one beam for example, weighting processing to obtain the final measurement result, or selecting the measurement result corresponding to one of the beams as the final measurement result.
- the measurement result corresponding to the selected beam may be the best measurement result among all the measurement beams forwarded by the auxiliary device.
- the measurement result can be expressed as Signal to Interference Noise Ratio (SINR), or Reference Signal Received Power (Reference Signal Received Power, RSRP), or Reference Signal Received Quality (Reference Signal Received Quality, RSRQ) .
- SINR Signal to Interference Noise Ratio
- RSRP Reference Signal Received Power
- RSRQ Reference Signal Received Quality
- the network side device schedules cell handover
- the network side device schedules cell switching
- the second cell is any cell in at least one first cell.
- the terminal may be handed over to the second cell, or a master-slave serving cell handover may be performed.
- the difference between the measurement results of the second cell and the first serving cell under the same beam forwarded by the auxiliary device exceeds the second threshold, indicating that the measurement result of the second cell under the same beam forwarded by the auxiliary device is better than that of the first serving cell.
- the measurement result of a serving cell so the terminal can be handed over to a second cell, or master-slave serving cell handover can be performed.
- the working status of the auxiliary equipment affects the measurement results of the cell. According to the measurement results of the cell and the working status of the auxiliary equipment, cell switching is scheduled, so that the Decisions are more accurate.
- the step "the network side device schedules cell handover according to the measurement results of the first serving cell and at least one first cell, and the working status of the auxiliary device” can be implemented in the following ways:
- the network side device schedules the master-slave service according to the measurement results of the first serving cell and at least one second serving cell, as well as the working status of the auxiliary device cell handover; or,
- the network side device schedules cell handover according to the measurement results of the first serving cell and at least one neighboring cell, and the working status of the auxiliary device.
- the terminal has multiple serving cells, one of the multiple serving cells has a primary serving cell, and at least one from the service area.
- the terminal sends the measurement results of the current primary serving cell and the secondary serving cell to the network-side device, and the network-side device schedules the cell handover process of the terminal according to the measurement results of the current primary serving cell and the secondary serving cell of the terminal. Further consideration is given to the working state of auxiliary equipment.
- the network side device schedules cell handover according to the measurement results of the first serving cell and the measurement results of at least one second serving cell;
- the network side device schedules cell switching according to the measurement results of the terminal's first serving cell and at least one second serving cell under the same beam forwarded by the auxiliary device.
- the terminal sends the measurement results of the current first serving cell and neighboring cells to the network side device, and the network side device uses the measurement results of the current first serving cell and neighboring cells of the terminal , to schedule the cell handover process of the terminal, and further, to schedule the cell handover according to the working state of the auxiliary equipment.
- the network side device schedules cell switching according to the measurement results of the first serving cell and the measurement results of at least one neighboring cell;
- the network side device schedules cell switching according to the measurement results of the terminal's first serving cell and at least one neighboring cell under the same beam forwarded by the auxiliary device.
- the soft handover of the cell is realized through the handover of the master-slave serving cell, which can ensure the continuity of the communication service without affecting the communication of the terminal.
- the scheduling information includes forwarding beam information of the auxiliary device, and the forwarding beam information includes: the master-slave relationship of the network side device corresponding to the forwarding beam, and step 102 can be implemented in the following manner:
- the network side device schedules master-slave serving cell switching according to the location of the terminal and the master-slave relationship of the network side device corresponding to the forwarding beam of the auxiliary device;
- the master-slave relationship of the network-side device corresponding to the forwarding beam is determined according to the coverage of the forwarding beam of the auxiliary device and the relative position of the network-side device corresponding to each serving cell.
- the forwarding beam information includes at least one of the following: an identifier of each forwarded beam, such as a port number; a reference signal corresponding to each beam; and information about a serving cell and/or a network side device corresponding to a forwarding beam.
- the serving cell and/or network-side device information corresponding to the forwarding beam may include: a master-slave relationship of the network-side device corresponding to the forwarding beam.
- the master-slave relationship of the network-side equipment corresponding to the forwarding beam is determined according to the coverage of the forwarding beam of the auxiliary equipment and the relative position of the network-side equipment corresponding to each serving cell, for example, the distance between the forwarding beam and a certain base station is relatively small. If the base station is close, the base station is used as the master base station, and other base stations are used as slave base stations.
- the master-slave relationship of the network side equipment is: 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: base station 1 is The master base station, base station 2 is the slave base station, and for beam 3, the master-slave relationship of the network side equipment is: base station 2 is the master base station, and base station 1 is the slave base station. If the terminal is under the coverage of beam 1, use base station 1 as the master base station and base station 2 as the slave base station.
- the current first serving cell is the cell under the coverage of base station 1, and the second serving cell can be under the coverage of base station 2.
- base station 2 will be used as the primary base station, and base station 1 will be used as the secondary base station, then a switch between the primary and secondary serving cells is required.
- the first serving cell is switched to the secondary serving cell, and the second One of the serving cells is switched to be the primary serving cell, for example, the cell with the best signal quality among the second serving cells is selected as the primary serving cell. Therefore, the network-side device schedules master-slave serving cell handover according to the position change of the terminal and the master-slave relationship of the network-side device corresponding to the forwarding beam. For example, when the terminal moves from the coverage area of beam 1 to the coverage area of beam 3, the network-side device The master-slave relationship changes, so master-slave serving cell switching is required.
- the terminal switches from the coverage of one forwarding beam of the auxiliary device to the coverage of another forwarding beam, the first serving cell and the beam corresponding to the first cell switch simultaneously.
- the network-side device schedules master-slave serving cell switching according to the location of the terminal and the master-slave relationship of the network-side device corresponding to the forwarding beam of the auxiliary device.
- the implementation process is simple and the efficiency is high. .
- the network side device determines that the terminal needs to switch from the current first serving cell to the second cell according to the first information; or switches the current first serving cell to the secondary serving cell and switches the second cell For the primary serving cell, the method further includes the following steps:
- the network side device sends a handover indication message to the terminal, the handover indication message is used to indicate handover from the first serving cell to the second cell, or to perform master-slave serving cell handover, and the handover indication message indicates the second Configuration information of the cell, the configuration information includes at least one of the following: configuration information of the synchronization signal block (Synchronization Signal Block, SSB) of the second cell, system information (such as system information block (System Information Block, SIB)), physical downlink control Channel (Physical Downlink Control Channel, PDCCH) configuration information, the PDCCH configuration information includes at least one of the following: PDCCH transmission cycle, PDCCH time-frequency resource configuration information, PDCCH use beam.
- SSB Synchrom Signal Block
- SIB System Information Block
- PDCCH Physical Downlink Control Channel
- the network side device After the network side device determines that the terminal needs to perform cell handover, the network side device sends a handover instruction to the terminal, and the handover instruction is used to instruct handover from the first serving cell to the second cell, or perform a master-slave serving cell handover, That is, the current first serving cell is switched to the secondary serving cell, and the second cell is switched to the primary serving cell.
- the handover instruction message also includes information of the target cell to be handed over, such as SSB, SIB, PDCCH transmission cycle of the second cell, time-frequency resource configuration information, and necessary configuration parameters for receiving broadcast information of the second cell using beams and the like.
- the effective time of the configuration information included in the handover indication message may be explicitly indicated in the handover indication message, or take effect at a fixed time after receiving the handover indication message according to the rules defined in the protocol.
- the network side device may also receive a handover request from the terminal, the handover request is sent after the terminal acquires the measurement results of the first serving cell and at least one first cell, that is, the terminal determines whether cell handover is required, and the terminal
- the process of determining whether to perform cell handover is similar to the execution process of the network side device, and will not be repeated here.
- step 102 the following steps are also included before step 102:
- the network side device determines that the terminal is within the coverage of the auxiliary device according to the measurement result of the beam forwarded by the auxiliary device and the measurement result of the beam directly sent by the network side device.
- the network side device configures multiple different listening beams for the terminal, including: a beam directly sent by the network side device and a beam forwarded by the auxiliary device.
- the terminal measures multiple monitoring beams and reports the measurement results.
- the network side device judges whether the terminal enters the coverage of the auxiliary device according to the reported measurement results, that is, whether the terminal uses the beam forwarded by the auxiliary device for communication.
- different monitoring beams are embodied as different reference signals, configured as different port numbers, time-frequency resources and pseudo-random sequences.
- 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 following information: the number of serving cells sharing auxiliary equipment, the physical cell identity PCI, the use time of each serving cell using auxiliary equipment, the use cycle, and the reference signal (SSB or channel state information) of each serving cell Measure the time-frequency domain configuration parameters of the reference signal (Channel State Information Reference Signal, CSI-RS). If the reference signal is CSI-RS, you also need to configure the parameters of the CSI-RS generation sequence.
- CSI-RS Channel State Information Reference Signal
- the border area of the two cells is the area where the base stations of the original two cells send the signal quality judgment of a single beam (for example, based on the RSRP decision,
- the cell border area the cell signal quality depends on the signal quality of the beam pointing to the cell border area.
- the terminal can access multiple cells at the same time, that is, the terminal has multiple serving cells.
- the method further includes:
- the network side device receives the measurement results of the first serving cell and at least one third cell under the same beam forwarded by the auxiliary device sent by the terminal;
- the network side device configures at least one access parameter of the third cell for the terminal according to the measurement result.
- the access parameters are used to indicate data parameters of PDSCH and PUSCH of the first cell, including DL/UL BWP related configuration parameters of the first cell, and related PDCCH and PUCCH configuration parameters.
- the network side device judges whether the terminal establishes a connection with at least one third cell according to the measurement result of the terminal, or judges whether the terminal establishes a connection with at least one third cell according to the scheduling information of the network side device.
- the signal measurement operation of at least one third cell may be initiated by a network side device, or triggered by the terminal according to an event.
- the network side device of the current first serving cell configures the measurement parameters of other cells for the terminal, including at least one of the following: reference signal (CSI-RS or SSB and specifying SSB index), measurement period, measurement window and measurement times, it can be understood
- the configured reference signal is a beam sent by the network side device to the auxiliary device and forwarded by the auxiliary device.
- the same SSB of other cells is configured with multiple measurement windows, corresponding to multiple forwarding beams of the auxiliary device.
- a measurement window of reference signals of other cells may be included when the auxiliary device does not forward signals of other cells or when the auxiliary device is not working.
- the terminal reports the measurement results of the signals of multiple cells under the same beam forwarded by the auxiliary device, and the current network-side device configures the access parameters of other cells for the terminal according to the measurement results (for example, contention-free random access input (contention free random access, CFRA) preamble and random access channel opportunity (Random Access Channel Occasion, RO) resource).
- contention-free random access input contention free random access, CFRA
- CFRA contention free random access channel opportunity
- RO Random Access Channel Occasion
- the method further includes:
- the network side device receives the connection establishment request sent by the terminal, and the connection establishment request is used to request to establish a connection with at least one third cell; the connection establishment request is triggered when a first condition is met, and the first condition includes: the third cell is in The difference between the measurement result under the same beam forwarded by the auxiliary device and the measurement result of the first serving cell under the same beam forwarded by the auxiliary device is less than or equal to the third threshold;
- the network side device configures at least one access parameter of the third cell for the terminal according to the connection establishment request.
- the terminal when determining that the measurement result satisfies the first condition, the terminal triggers sending a connection establishment request to the network side device, for requesting to establish a connection with the third cell.
- the first condition includes: the difference between the measurement result of the third cell under the same beam forwarded by the auxiliary device and the measurement result of the first serving cell under the same beam forwarded by the auxiliary device is less than or equal to a third threshold, which may be Expressed as the following formula:
- Ms represents the measurement result of the current first serving cell under the beam forwarded by the auxiliary device
- Mn represents the measurement result of the first cell using the same beam of the auxiliary device
- Thresh represents the configuration of the first serving cell the third threshold
- the network side device configures the access parameters of the first cell for the terminal according to the connection establishment request. For details, refer to the aforementioned scenario of network side device scheduling.
- additional constraint conditions may be added on the basis of the above first condition, and the first condition further includes at least one of the following:
- the measurement result of the third cell under the same beam forwarded by the auxiliary device is greater than or equal to the fourth threshold
- the difference between the measurement result of the third cell under the same beam forwarded by the auxiliary device and the measurement result of the third cell under the second condition is greater than a fifth threshold
- the measurement result of the third cell under the second condition is greater than or equal to the sixth threshold
- the arrival time difference between the downlink frame boundary of the third cell and the downlink frame boundary of the first serving cell is less than or equal to the seventh threshold
- the second condition includes: the auxiliary device does not work or the beam forwarded by the auxiliary device does not point to the terminal.
- the measurement result of the third cell under the same beam forwarded by the auxiliary device is greater than or equal to the fourth threshold, which can be expressed as: Mn>Thresh1, where Thresh1 represents the fourth threshold configured by the first serving cell;
- the difference between the measurement results of the third cell under the same beam forwarded by the auxiliary device and the measurement results of the third cell under the second condition is greater than the fifth threshold, which can be expressed as: Mn-Mn0>Thresh2, Mn0 is the auxiliary
- Thresh2 represents the fifth threshold configured for the first serving cell;
- the measurement result of the third cell under the second condition is greater than or equal to the sixth threshold, which may be expressed as: Mn0>Thresh3, where Thresh3 is the sixth threshold configured for the first serving cell.
- the terminal determines the difference in arrival time of the downlink frame boundary between the current first serving cell and the third cell (that is, determines the synchronization situation of the downlink frame boundary of different cells), when the arrival time difference of the downlink frame boundary is less than the seventh threshold Thresh4 When , the terminal is allowed to establish a connection with the third cell. Further, the terminal receives the SSB of the third cell and performs a random access procedure, so that the terminal is connected to the third cell and realizes uplink and downlink synchronization.
- the third cell becomes the first cell.
- the network-side device sends a scheduling signaling to the terminal to schedule the terminal to perform random access with the first cell, and the RO resource of Msg1 for random access is configured in the scheduling signaling and the preamble parameters of CF RA, and the uplink and downlink bandwidth (Band Width Part, BWP) of the first cell for communication.
- a scheduling signaling to the terminal to schedule the terminal to perform random access with the first cell
- the RO resource of Msg1 for random access is configured in the scheduling signaling and the preamble parameters of CF RA, and the uplink and downlink bandwidth (Band Width Part, BWP) of the first cell for communication.
- the terminal since the terminal accesses multiple cells, signals from other cells also provide services for the terminal, and do not become interference signals, reducing inter-cell interference.
- the method also includes:
- the network side device sends the timing advance TA to the terminal, and the TA is used for the terminal to communicate with the first serving cell and each first cell.
- the network-side device of the current first serving cell sends a TA to the terminal, and when the terminal simultaneously accesses the current first serving cell and other second serving cells, the terminal only receives the TA of the current first serving cell, It acts on the current first serving cell and other second serving cells at the same time, that is, the TA is also applicable to other second serving cells.
- the terminal may leave the coverage of the auxiliary device during the movement process. If the terminal leaves the coverage of the auxiliary device, the terminal switches to the state of direct communication with the network side device, that is, the method further includes:
- the network-side device receives the indication information sent by the terminal, which is used to indicate direct communication with the network-side device;
- the network side device sends a notification message to the network side device of each first cell, where the notification message is used to indicate disconnection from the terminal.
- the terminal obtains the measurement results of the measurement beams according to the current measurement beams configured in the first serving cell.
- the measurement beams include beams directly sent by the network side device and beams sent by the network side device and forwarded by the auxiliary device. If the terminal has been switched between master and slave serving cells within the coverage of the auxiliary device, the current first serving cell needs to reconfigure the measurement beam for the terminal.
- the terminal switches to the state of direct communication with the network-side device.
- the terminal no longer maintains connections with other serving cells, and the network-side device corresponding to the current first serving cell notifies other serving cells to disconnect the communication connection with the terminal.
- the terminal after the terminal leaves the coverage of the auxiliary device during the movement, the terminal switches to a state of direct communication with the network side device without forwarding by the auxiliary device, which improves communication efficiency.
- the cell handover method provided in this embodiment includes:
- Step 201 the terminal acquires the measurement results of the terminal's first serving cell and at least one first cell;
- the first cell is an adjacent cell of the first serving cell, or a second serving cell of the terminal; the first serving cell and at least one first cell are cells that share auxiliary equipment.
- step 101 For the specific implementation principle of this step, refer to the description at step 101, which will not be repeated this time.
- Step 202 the terminal performs cell handover based on the measurement results of the first serving cell and at least one first cell.
- the terminal may directly determine whether to perform cell handover according to the measurement result, and if the terminal determines to perform cell handover, the terminal may send a handover request to the network side device;
- the terminal may send the measurement result to the network-side device, and the network-side device determines whether to perform cell handover, and if the network-side device determines to perform cell handover, the network-side device sends a handover instruction to the terminal.
- step 202 can be implemented in the following ways:
- the terminal sends measurement results of the first serving cell and at least one first cell to the network side device, where the measurement results are used by the network side device to schedule cell switching;
- the terminal performs cell handover according to the handover indication message sent by the network side device.
- the terminal determines to perform cell handover according to measurement results of the first serving cell and at least one first cell;
- the terminal performs cell handover according to the handover instruction message sent by the network side device; the handover instruction message is sent by the network side device according to the handover request sent by the terminal.
- the method further includes:
- the terminal sends a switching request to the network side device.
- the terminal determines to perform cell handover according to the measurement results of the first serving cell and at least one first cell, which may be specifically implemented in the following manner:
- the terminal determines to perform cell handover according to the measurement results of the first serving cell and at least one first cell, and the working state of the auxiliary device.
- the terminal determines to perform cell switching according to the measurement result of the first serving cell and the measurement result of at least one first cell;
- the terminal determines to perform cell switching according to the measurement results of the terminal's first serving cell and at least one first cell under the same beam forwarded by the auxiliary device.
- the terminal determines to perform cell handover
- the terminal determines to perform cell handover
- the second cell is any cell in the at least one first cell.
- the terminal determines to perform cell handover according to the measurement results of the first serving cell and at least one first cell, which may be specifically implemented in the following manner:
- the terminal In the case where the serving cell of the terminal includes a first serving cell and at least one second serving cell, the terminal, according to the measurement results of the first serving cell and at least one second serving cell, and the working status of the auxiliary device , to determine the master-slave serving cell switching;
- the terminal determines to perform cell handover according to the measurement results of the first serving cell and at least one neighboring cell, and the working state of the auxiliary device.
- the terminal sends a connection establishment request to the network side device, where the connection establishment request is used to request to establish a connection with at least one third cell; the connection establishment request is triggered when the first condition is met Yes, the first condition includes: the difference between the measurement result of the third cell under the same beam forwarded by the auxiliary device and the measurement result of the first serving cell under the same beam forwarded by the auxiliary device The difference is less than or equal to the third threshold;
- the terminal receives the access parameters of at least one third cell sent by the network side device.
- acquiring the measurement results of the first serving cell of the terminal and at least one first cell by the terminal includes:
- the terminal obtains the measurement of the first serving cell and the measurement results of at least one first cell according to the measurement configuration information, and sends the measurement of the first serving cell and the measurement results of at least one first cell to the network side A device; wherein, the measurement configuration information includes at least one of the following: reference signal, measurement cycle, measurement time window, and measurement times.
- the method also includes:
- the terminal obtains the measurement result of the direct transmission beam of the network side device and the measurement result of the forwarding beam of the auxiliary device;
- the terminal switches to direct communication with the network side device according to the measurement result of the direct transmission beam of the network side device and the measurement result of the forwarding beam of the auxiliary device.
- the method further includes:
- the terminal disconnects from the second serving cell.
- the method includes:
- Step 100a the network device sends measurement configuration information to the terminal
- Step 201 the terminal acquires the measurement results of the terminal's first serving cell and at least one first cell;
- Step 100b the terminal sends the measurement results of the terminal's first serving cell and at least one first cell to the network device;
- Step 102 the network device schedules cell handover according to the measurement result and/or scheduling information
- Step 103 the network device sends a switching instruction to the terminal.
- the method includes:
- Step 100a the network device sends measurement configuration information to the terminal
- Step 201 the terminal acquires the measurement results of the terminal's first serving cell and at least one first cell;
- Step 202 the terminal determines to perform cell handover according to the measurement results of the terminal's first serving cell and at least one first cell;
- Step 100c the terminal sends a switching request to the network device
- Step 103 the network device sends a switching instruction to the terminal.
- step 100b it may also include:
- Step 104 the network device determines whether the terminal accesses at least one first cell according to the measurement result
- step 105 is performed to configure access parameters of at least one first cell.
- step 201 it may also include:
- Step 203 the terminal determines whether to access at least one first cell according to the measurement result
- Step 204 the terminal sends a connection establishment request to the network device
- Step 105 configuring access parameters of at least one first cell.
- the cell switching method provided in the embodiment of the present application may be executed by a cell switching device, or a processing module in the cell switching device for executing the cell switching method.
- the cell switching method performed by the cell switching device is taken as an example to describe the cell switching device provided in the embodiment of the present application.
- Fig. 11 is one of the structural schematic diagrams of the cell handover device provided in this application.
- the cell switching device 110 provided in this embodiment includes:
- a processing module 1102 configured to schedule cell handover according to the first information
- the first information includes at least one of the following: measurement results of the 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 the The second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- the processing module may schedule cell switching based on the measurement results and/or scheduling information of multiple cells, the multiple cells share auxiliary equipment, and the multiple cells include: the first serving cell of the terminal and at least one The first cell; wherein, the first cell may be an adjacent cell of the first serving cell, or a second serving cell of the terminal, and the terminal performs cell communication in a communication scenario with auxiliary equipment through the measurement results and/or scheduling information of the cell. Toggle scheme.
- the processing module 1102 is specifically configured to:
- processing module 1102 is specifically configured to:
- auxiliary device When the auxiliary device is working, cell switching is scheduled according to the measurement results of the terminal's first serving cell and at least one first cell under the same beam forwarded by the auxiliary device.
- processing module 1102 is specifically configured to:
- the second cell is any cell in the at least one first cell.
- processing module 1102 is specifically configured to:
- the serving cells of the terminal include the first serving cell and at least one second serving cell, according to the measurement results of the first serving cell and the at least one second serving cell, and the working status of the auxiliary equipment, schedule master-slave Serving cell handover; or,
- the serving cell of the terminal includes the first serving cell
- cell handover is scheduled according to the measurement results of the first serving cell and at least one neighboring cell, and the working state of the auxiliary device.
- the scheduling information includes at least one of the following: the number of terminals within the coverage of the auxiliary device, service information of the terminals, or forwarding beam information of the auxiliary device.
- 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 a forwarding beam, and the processing module 1102 is specifically configured to:
- the serving cell of the terminal includes a first serving cell and at least one second serving cell
- schedule the master-slave Serving cell switching the master-slave relationship of the forwarding beam is determined according to the coverage of the forwarding beam of the auxiliary device and the relative position of the network side equipment corresponding to each of the serving cells.
- a sending module configured to send a handover indication message to the terminal, where the handover indication message is used to indicate handover from the first serving cell to the second cell or a master-slave serving cell handover, and indicate that the second
- the configuration information of the cell, the configuration information of the second cell includes at least one of the following: configuration information of a synchronization signal block SSB of the second cell, system information, and configuration information of a physical downlink control channel PDCCH.
- processing module 1102 is further configured to:
- the terminal is within the coverage of the auxiliary device.
- the sending module is further configured to send auxiliary device configuration information to the terminal, where the auxiliary device configuration information includes at least one of the following: the number of cells sharing the auxiliary device, the physical cell identifier PCI, the auxiliary device Use time, use period, and time-frequency domain configuration parameters of the reference signal.
- the acquisition module 1101 is further configured to:
- the processing module 1102 is further configured to:
- the acquisition module 1101 is further configured to:
- connection establishment request sent by the terminal, where the connection establishment request is used to request to establish a connection with at least one third cell; the connection establishment request is triggered when a first condition is met, and the first condition includes : The difference between the measurement result of the third cell under the same beam forwarded by the auxiliary device and the measurement result of the first serving cell under the same beam forwarded by the auxiliary device is less than or equal to the third threshold;
- the processing module 1102 is further configured to:
- the first condition also includes at least one of the following:
- the measurement result of the third cell under the same beam forwarded by the auxiliary device is greater than or equal to a fourth threshold
- the difference between the measurement result of the third cell under the same beam forwarded by the auxiliary device and the measurement result of the third cell under the second condition is greater than a fifth threshold
- the measurement result of the third cell under the second condition is greater than or equal to the sixth threshold
- the arrival time difference between the downlink frame boundary of the third cell and the downlink frame boundary of the first serving cell is less than or equal to the seventh threshold
- the second condition includes: the auxiliary device does not work or the beam forwarded by the auxiliary device does not point to the terminal.
- the sending module is also used for:
- the measurement configuration information includes at least one of the following: reference signal, measurement cycle, measurement time window, and measurement times.
- the sending module is also used for:
- the acquisition module 1101 is further configured to:
- the sending module is also used for:
- the device in this embodiment can be used to execute the method in any of the aforementioned network-side method embodiments, and its specific implementation process and technical effects are similar to those in the network-side method embodiments. For details, please refer to the network-side method embodiments. A detailed introduction will not be repeated this time.
- Fig. 12 is the second structural diagram of the cell handover device provided by the present application. As shown in FIG. 12, the cell switching device 1200 provided in this embodiment includes:
- An obtaining module 1201, configured to obtain measurement results of the terminal's first serving cell and at least one first cell;
- a processing module 1202 configured to perform cell switching based on the measurement results of the first serving cell and at least one first cell;
- the first cell is an adjacent cell of the first serving cell, or a second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- the processing module may perform cell switching based on the measurement results of multiple cells, and the multiple cells share auxiliary equipment, and the multiple cells include: the first serving cell of the terminal and at least one first cell; wherein, the first serving cell A cell may be an adjacent cell of the first serving cell, or a second serving cell of the terminal, and the scheme of cell handover of the terminal in a communication scenario with auxiliary equipment is realized through the measurement results and/or scheduling information of the cell.
- a sending module configured to send measurement results of the first serving cell and at least one first cell to a network side device, where the measurement results are used by the network side device to schedule cell handover;
- the processing module 1202 is specifically configured to perform cell handover according to the handover instruction message sent by the network side device.
- processing module 1202 is specifically configured to:
- Cell switching is performed according to the handover instruction message sent by the network side device; the handover instruction message is sent by the network side device according to the handover request sent by the terminal.
- processing module 1202 is specifically configured to:
- the auxiliary device According to the measurement results of the first serving cell and at least one first cell, and the working state of the auxiliary device, it is determined to perform cell handover.
- processing module 1202 is specifically configured to:
- the auxiliary device When the auxiliary device is not working, determine to perform cell handover according to the measurement result of the first serving cell and the measurement result of at least one first cell;
- the auxiliary device When the auxiliary device is working, it is determined to perform cell handover according to the measurement results of the terminal's first serving cell and at least one first cell under the same beam forwarded by the auxiliary device.
- processing module 1202 is specifically configured to:
- the second cell is any cell in the at least one first cell.
- processing module 1202 is specifically configured to:
- the serving cell of the terminal includes a first serving cell and at least one second serving cell
- the serving cell of the terminal includes a first serving cell and at least one second serving cell
- the serving cell of the terminal includes the first serving cell, it is determined to perform cell handover according to the measurement results of the first serving cell and at least one neighboring cell, and the working state of the auxiliary device.
- the sending module is also used for:
- connection establishment request Sending a connection establishment request to the network side device, where the connection establishment request is used to request to establish a connection with the at least one third cell; the connection establishment request is triggered when a first condition is met, and the second A condition includes: the difference between the measurement result of the third cell under the same beam forwarded by the auxiliary device and the measurement result of the first serving cell under the same beam forwarded by the auxiliary device is less than or equal to the third threshold;
- An acquiring module 1201 configured to receive the access parameters of the at least one third cell sent by the network side device.
- the acquiring module 1201 is specifically used for:
- the sending module is further configured to send the measurement of the first serving cell and the measurement results of at least one first cell to the network side device; wherein the measurement configuration information includes at least one of the following: reference signal, measurement cycle, measurement Time window, number of measurements.
- the acquisition module 1201 is also used for:
- the processing module 1202 is specifically used for:
- processing module 1202 is specifically configured to:
- the terminal disconnects from the second serving cell.
- the device in this embodiment can be used to execute the method in any one of the foregoing terminal-side method embodiments, and its specific implementation process and technical effect are similar to those in the terminal-side method embodiment.
- the terminal-side method embodiment please refer to the terminal-side method embodiment. A detailed introduction will not be repeated this time.
- the cell handover device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal.
- the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
- the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
- the cell handover device provided in the embodiment of the present application can realize various processes realized by the method embodiments in FIG. 5 to FIG. 10 and achieve the same technical effect. To avoid repetition, details are not repeated here.
- this embodiment of the present application further provides a communication device 1300, including a processor 1301, a memory 1302, and programs or instructions stored in the memory 1302 and operable on the processor 1301,
- a communication device 1300 including a processor 1301, a memory 1302, and programs or instructions stored in the memory 1302 and operable on the processor 1301,
- the communication device 1300 is a terminal
- the program or instruction is executed by the processor 1301
- each process of the above cell handover method embodiment can be realized, and the same technical effect can be achieved.
- the communication device 1300 is a network-side device
- the program or instruction is executed by the processor 1301
- each process of the above-mentioned cell handover method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
- An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the communication interface is used to obtain the measurement results of the first serving cell and at least one first cell of the terminal, and the processor is used to obtain the measurement results of the first serving cell and at least one first cell based on the performing cell handover based on the measurement results of the first serving cell and at least one first cell;
- the first cell is an adjacent cell of the first serving cell, or a second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
- FIG. 14 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 1000 includes but 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, etc. at least some of the components.
- the terminal 1000 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1010 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
- a power supply such as a battery
- the terminal structure shown in FIG. 14 does not constitute a limitation on the terminal.
- the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, which will not be repeated here.
- the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
- the display unit 1006 may include a display panel 10061, and the display panel 10061 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.
- Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.
- the radio frequency unit 1001 receives the downlink data from the network side device, and processes it to the processor 1010; in addition, sends the uplink data to the network side device.
- the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- the memory 1009 can be used to store software programs or instructions as well as various data.
- the memory 1009 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, at least one application program or instruction required by a function (such as a sound playback function, an image playback function, etc.) and the like.
- the memory 1009 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- ROM Read-Only Memory
- PROM programmable read-only memory
- PROM erasable programmable read-only memory
- Erasable PROM Erasable PROM
- EPROM electrically erasable programmable read-only memory
- EEPROM electrically erasable programmable read-only memory
- flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
- the processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1010 .
- the processor 1010 is configured to acquire the measurement results of the terminal's first serving cell and at least one first cell;
- the first cell is an adjacent cell of the first serving cell, or a second serving cell of the terminal; the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- the processing module may perform cell switching based on the measurement results of multiple cells, and the multiple cells share auxiliary equipment, and the multiple cells include: the first serving cell of the terminal and at least one first cell; wherein, the first serving cell A cell may be an adjacent cell of the first serving cell, or a second serving cell of the terminal, and the scheme of cell handover of the terminal in a communication scenario with auxiliary equipment is realized through the measurement results and/or scheduling information of the cell.
- the radio frequency unit 1001 is used for:
- the processor 1010 is specifically configured to perform cell handover according to the handover indication message sent by the network side device.
- the network side device can schedule cell handover based on the measurement results of multiple cells, and the multiple cells share the use of auxiliary equipment, and the multiple cells include: the first serving cell of the terminal and at least one first cell; Wherein, the first cell may be a neighbor cell of the first serving cell, or a second serving cell of the terminal, and the scheme of cell handover of the terminal in a communication scenario with an auxiliary device is realized through the measurement result and/or scheduling information of the cell.
- processor 1010 is specifically configured to:
- Cell switching is performed according to the handover instruction message sent by the network side device; the handover instruction message is sent by the network side device according to the handover request sent by the terminal.
- the terminal can determine whether to perform cell handover based on the measurement results of multiple cells, and then interact with the network side equipment to schedule the cell handover.
- the multiple cells share auxiliary equipment, and the multiple cells include: the terminal The first serving cell and at least one first cell; wherein, the first cell may be a neighbor cell of the first serving cell, or a second serving cell of the terminal, and the measurement result and/or scheduling information of the cell realizes the The solution for the terminal to perform cell handover in the communication scenario of the device.
- processor 1010 is specifically configured to:
- the auxiliary device According to the measurement results of the first serving cell and at least one first cell, and the working state of the auxiliary device, it is determined to perform cell handover.
- processor 1010 is specifically configured to:
- the auxiliary device When the auxiliary device is not working, determine to perform cell handover according to the measurement result of the first serving cell and the measurement result of at least one first cell;
- the auxiliary device When the auxiliary device is working, it is determined to perform cell handover according to the measurement results of the first serving cell of the terminal and at least one first cell under the same beam forwarded by the auxiliary device.
- processor 1010 is specifically configured to:
- the second cell is any cell in the at least one first cell.
- the working status of the auxiliary equipment affects the measurement results of the cell. Decisions are more accurate.
- processor 1010 is specifically configured to:
- the serving cell of the terminal includes a first serving cell and at least one second serving cell
- the serving cell of the terminal includes a first serving cell and at least one second serving cell
- the serving cell of the terminal includes the first serving cell, it is determined to perform cell handover according to the measurement results of the first serving cell and at least one neighboring cell, and the working state of the auxiliary device.
- the soft handover of the cell is realized through the handover of the master-slave serving cell, which can ensure the continuity of the communication service without affecting the communication of the terminal.
- the radio frequency unit 1001 is also used for:
- connection establishment request Sending a connection establishment request to the network side device, where the connection establishment request is used to request to establish a connection with the at least one third cell; the connection establishment request is triggered when a first condition is met, and the second A condition includes: the difference between the measurement result of the third cell under the same beam forwarded by the RIS device and the measurement result of the first serving cell under the same beam forwarded by the RIS device is less than or equal to the third threshold;
- the terminal since the terminal accesses multiple cells, signals from other cells also provide services for the terminal, and do not become interference signals, reducing inter-cell interference.
- processor 1010 is specifically configured to:
- the radio frequency unit 1001 is specifically configured to: send the measurement result of the first serving cell and the measurement result of at least one first cell to the network side device; wherein the measurement configuration information includes at least one of the following: reference signal, measurement cycle , measurement time window, measurement times.
- processor 1010 is also used for:
- processor 1010 is specifically configured to:
- the terminal disconnects from the second serving cell.
- the terminal after the terminal leaves the coverage of the auxiliary device during the movement, the terminal switches to a state of direct communication with the network side device without forwarding by the auxiliary device, which improves communication efficiency.
- the embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to acquire first information, and the processor is used to schedule cell handover according to the first information; wherein, the first information
- the information includes at least one of the following items: the first serving cell of the terminal and measurement results of at least one first cell, or scheduling information; the first cell is a neighboring cell of the first serving cell, or the first serving cell of the terminal
- Two serving cells: the first serving cell and the at least one first cell are cells that share auxiliary equipment.
- the network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
- the embodiment of the present application also provides a network side device.
- the network device 700 includes: an antenna 71 , a radio frequency device 72 , and a baseband device 73 .
- the antenna 71 is connected to a radio frequency device 72 .
- the radio frequency device 72 receives information through the antenna 71, and sends the received information to the baseband device 73 for processing.
- the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72
- the radio frequency device 72 processes the received information and sends it out through the antenna 71 .
- the foregoing frequency band processing device may be located in the baseband device 73 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 73 , and the baseband device 73 includes a processor 74 and a memory 75 .
- the baseband device 73 can include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG.
- the baseband device 73 may also include a network interface 76 for exchanging information with the radio frequency device 72, such as a common public radio interface (CPRI for short).
- a network interface 76 for exchanging information with the radio frequency device 72, such as a common public radio interface (CPRI for short).
- CPRI common public radio interface
- the network-side device in the embodiment of the present invention also includes: instructions or programs stored in the memory 75 and operable on the processor 74, and the processor 74 calls the instructions or programs in the memory 75 to execute the modules shown in FIG. 11 To avoid duplication, the method of implementation and to achieve the same technical effect will not be repeated here.
- the embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by a processor, each process of the above-mentioned cell handover method embodiment is realized, and the same To avoid repetition, the technical effects will not be repeated here.
- the processor is the processor in the terminal described in the foregoing embodiments.
- the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
- the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above cell handover method embodiment
- the chip includes a processor and a communication interface
- the communication interface is coupled to the processor
- the processor is used to run programs or instructions to implement the above cell handover method embodiment
- the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
- the embodiment of the present application also provides a computer program/program product, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to realize the above-mentioned cell handover
- the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to realize the above-mentioned cell handover
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Abstract
Description
Claims (34)
- 一种小区切换方法,包括:网络侧设备获取第一信息;所述网络侧设备根据所述第一信息调度小区切换;其中,所述第一信息包括以下至少一项:第一服务小区和至少一个第一小区的测量结果,和调度信息;所述第一小区为所述第一服务小区的邻小区,或所述终端的第二服务小区;所述第一服务小区和所述至少一个第一小区为共享使用辅助设备的小区。
- 根据权利要求1所述的小区切换方法,其中,在所述第一信息包括所述终端的第一服务小区和至少一个第一小区的测量结果的情况下,所述网络侧设备根据所述第一信息调度小区切换,包括:所述网络侧设备根据所述第一服务小区和至少一个第一小区的测量结果,以及辅助设备的工作状态调度小区切换。
- 根据权利要求2所述的小区切换方法,其中,所述网络侧设备根据所述终端的第一服务小区和至少一个第一小区的测量结果,以及辅助设备的工作状态调度小区切换,包括:在所述辅助设备不工作的情况下,所述网络侧设备根据所述第一服务小区的测量结果和至少一个第一小区的测量结果,调度小区切换;在所述辅助设备工作的情况下,所述网络侧设备根据所述终端的第一服务小区和至少一个第一小区在所述辅助设备转发的相同波束下的测量结果,调度小区切换。
- 根据权利要求3所述的小区切换方法,其中,所述网络侧设备根据所述终端的第一服务小区的测量结果和至少一个第一小区的测量结果,调度小区切换,包括:在第二小区的测量结果与所述第一服务小区的测量结果的差值超过第一阈值的情况下,所述网络侧设备调度小区切换;或者,所述网络侧设备根据所述终端的第一服务小区和至少一个第一小区在所述辅助设备转发的相同波束下的测量结果,调度小区切换,包括:在所述第二小区与所述第一服务小区在所述辅助设备转发的相同波束下的测量结果的差值超过第二阈值的情况下,所述网络侧设备调度小区切换;其中,所述第二小区为所述至少一个第一小区中任一小区。
- 根据权利要求2所述的小区切换方法,其中,所述网络侧设备根据所述终端的第一服务小区和至少一个第一小区的测量结果,以及辅助设备的工作状态调度小区切换,包括:在所述终端的服务小区包括第一服务小区和至少一个第二服务小区的情况下,所述网络侧设备根据所述第一服务小区和至少一个第二服务小区的测量结果,以及辅助设备的工作状态调度主从服务小区切换;或,在所述终端的服务小区仅包括第一服务小区的情况下,所述网络侧设备根据所述第一服务小区和至少一个邻小区的测量结果,以及辅助设备的工作状态调度小区切换。
- 根据权利要求1-5任一项所述的小区切换方法,其中,所述调度信息包括以下至少一项:所述辅助设备覆盖范围内的终端数量、终端的业务信息或辅助设备的转发波束信息。
- 根据权利要求6所述的小区切换方法,其中,所述调度信息包括所述辅助设备的转发波束信息,所述转发波束信息包括:转发波束对应的网络侧设备主从关系,所述网络侧设备根据所述第一信息调度小区切换,包括:在所述终端的服务小区包括第一服务小区和至少一个第二服务小区的情况下,所述网络侧设备根据所述终端的位置以及所述辅助设备的转发波束对应的网络侧设备的主从关系,调度主从服务小区切换;所述转 发波束的主从关系为根据所述辅助设备的转发波束的覆盖范围与各个所述服务小区对应的网络侧设备的相对位置确定的。
- 根据权利要求4所述的小区切换方法,其中,所述网络侧设备根据所述第一信息调度小区切换,包括:所述网络侧设备向所述终端发送切换指示消息,所述切换指示消息用于指示从所述第一服务小区切换到所述第二小区或进行主从服务小区切换,且指示所述第二小区的配置信息,所述第二小区的配置信息包括以下至少一项:所述第二小区的同步信号块SSB的配置信息、系统信息、物理下行控制信道PDCCH的配置信息。
- 根据权利要求1-5任一项所述的小区切换方法,其中,所述网络侧设备根据所述第一信息调度小区切换之前,还包括:所述网络侧设备根据所述辅助设备转发波束的测量结果,以及所述网络侧设备直接发送的波束的测量结果,确定所述终端处于所述辅助设备的覆盖范围。
- 根据权利要求9所述的小区切换方法,其中,所述确定所述终端处于所述辅助设备的覆盖范围之前,还包括:所述网络侧设备向所述终端发送辅助设备配置信息,所述辅助设备配置信息包括以下至少一项:共享辅助设备的小区的数量、物理小区标识PCI、辅助设备的使用时间、使用周期、参考信号的时频域配置参数。
- 根据权利要求9所述的小区切换方法,其中,所述确定所述终端处于所述辅助设备的覆盖范围之后,还包括:所述网络侧设备接收所述终端发送的所述第一服务小区和至少一个第三小区在所述辅助设备转发的相同波束下的测量结果;所述网络侧设备根据所述测量结果,为所述终端配置至少一个所述第三小区的接入参数。
- 根据权利要求9所述的小区切换方法,其中,所述确定所述终端处于所述辅助设备的覆盖范围之后,还包括:所述网络侧设备接收所述终端发送的连接建立请求,所述连接建立请求用于请求与至少一个第三小区建立连接;所述连接建立请求为在满足第一条件的情况下触发的,所述第一条件包括:所述第三小区在所述辅助设备转发的相同波束下的测量结果,与所述第一服务小区在所述辅助设备转发的相同波束下的测量结果之间的差值小于或等于第三阈值;所述网络侧设备根据所述连接建立请求,为所述终端配置所述至少一个第三小区的接入参数。
- 根据权利要求12所述的小区切换方法,其中,所述第一条件还包括以下至少一项:所述第三小区在所述辅助设备转发的相同波束下的测量结果大于或等于第四阈值;所述第三小区在所述辅助设备转发的相同波束下的测量结果,与所述第三小区在第二条件下的测量结果之间的差值大于第五阈值;所述第三小区在第二条件下的测量结果大于或等于第六阈值;所述第三小区的下行帧边界,与所述第一服务小区的下行帧边界的到达时间差,小于或等于第七阈值;其中,所述第二条件包括:所述辅助设备不工作或所述辅助设备转发的波束不指向所述终端。
- 根据权利要求1-5任一项所述的小区切换方法,其中,所述方法还包括:所述网络侧设备向所述终端发送各个所述第三小区的测量配置信息,所述测量配置信息包括以下至少一项:参考信号、测量周期、测量时间窗口、测量次数。
- 根据权利要求11或12所述的小区切换方法,其中,所述方法还包括:所述网络侧设备向所述终端发送时间提前量TA,所述TA用于所述终端与所述第一服务小区和各个所述第一小区进行通信。
- 根据权利要求1-5任一项所述的小区切换方法,其中,所述方法还包括:所述网络侧设备接收终端发送的指示信息,用于指示与所述网络侧设备直接通信;所述网络侧设备向各个所述第一小区的网络侧设备发送通知消息,所述通知消息用于指示各个所述第一小区的网络侧设备与所述终端断开连接。
- 一种小区切换方法,包括:终端获取所述终端的第一服务小区和至少一个第一小区的测量结果;所述终端基于所述第一服务小区和至少一个第一小区的测量结果进行小区切换;其中,所述第一小区为所述第一服务小区的邻小区,或所述终端的第二服务小区;所述第一服务小区和所述至少一个第一小区为共享使用辅助设备的小区。
- 根据权利要求17所述的小区切换方法,其中,所述终端基于所述第一服务小区和至少一个第一小区的测量结果进行小区切换,包括:所述终端向网络侧设备发送所述第一服务小区和至少一个第一小区的测量结果,所述测量结果用于所述网络侧设备调度小区切换;所述终端根据网络侧设备发送的切换指示消息进行小区切换。
- 根据权利要求17所述的小区切换方法,其中,所述终端基于所述第一服务小区和至少一个第一小区的测量结果进行小区切换,包括:所述终端根据所述第一服务小区和至少一个第一小区的测量结果,确定进行小区切换;所述终端根据所述网络侧设备发送的切换指示消息进行小区切换;所述切换指示消息为所述网络侧设备根据所述终端发送的切换请求发送的。
- 根据权利要求19所述的小区切换方法,其中,所述终端根据所述第一服务小区和至少一个第一小区的测量结果,确定进行小区切换,包括:所述终端根据所述第一服务小区和至少一个第一小区的测量结果,以及辅助设备的工作状态,确定进行小区切换。
- 根据权利要求20所述的小区切换方法,其中,所述终端根据所述第一服务小区和至少一个第一小区的测量结果,以及辅助设备的工作状态,确定进行小区切换,包括:在所述辅助设备不工作的情况下,所述终端根据所述第一服务小区的测量结果和至少一个第一小区的测量结果,确定进行小区切换;在所述辅助设备工作的情况下,所述终端根据所述终端的第一服务小区和至少一个第一小区在所述辅助设备转发的相同波束下的测量结果,确定进行小区切换。
- 根据权利要求21所述的小区切换方法,其中,所述终端根据所述第一服务小区的测量结果和至少一个第一小区的测量结果,确定进行小区切换包括:在第二小区的测量结果与所述第一服务小区的测量结果的差值超过第一阈值的情况下,所述终端确定进行小区切换;所述终端根据所述终端的第一服务小区和至少一个第一小区在所述辅助设备转发的相同波束下的测量结果,确定进行小区切换,包括:在所述第二小区的测量结果与所述第一服务小区在所述RIS设备转发的相同波束下的测量结果的差值超过第二阈值的情况下,所述终端确定进行小区切换;其中,所述第二小区为所述至少一个第一小区中任一小区。
- 根据权利要求20所述的小区切换方法,其中,所述终端根据所述第一服务小区和至少一个第一小区的测量结果,以及辅助设备的工作状态,确定进行小区切换,包括:在所述终端的服务小区包括第一服务小区和至少一个第二服务小区的情况下,所述终端根据所述第一服务小区和至少一个第二服务小区的测量结果,以及辅助设备的工作状态,确定进行主从服务小区切换;或,在所述终端的服务小区包括第一服务小区的情况下,终端根据所述第一服务小区和至少一个邻小区的测量结果,以及辅助设备的工作状态,确定进行小区切换。
- 根据权利要求17-19任一项所述的小区切换方法,其中,所述方法还包括:所述终端向所述网络侧设备发送连接建立请求,所述连接建立请求用于请求与至少一个第三小区建立连接;所述连接建立请求为在满足第一条件的情况下触发的,所述第一条件包括:所述第三小区在所述RIS设备转发的相同波束下的测量结果,与所述第一服务小区在所述RIS设备转发的相同波束下的测量结果之间的差值小于或等于第三阈值;所述终端接收所述网络侧设备发送的所述至少一个第三小区的接入参数。
- 根据权利要求17-19任一项所述的小区切换方法,其中,所述终端获取所述终端的第一服务小区和至少一个第一小区的测量结果,包括:所述终端根据测量配置信息,获取所述第一服务小区的测量和至少一个第一小区的测量结果,并将所述第一服务小区的测量和至少一个第一小区的测量结果发送给网络侧设备;其中,所述测量配置信息包括以下至少一项:参考信号、测量周期、测量时间窗口、测量次数。
- 根据权利要求17-19任一项所述的小区切换方法,其中,所述方法还包括:所述终端获取所述网络侧设备直接发送波束的测量结果,以及所述辅助设备转发波束的测量结果;所述终端根据所述网络侧设备直接发送波束的测量结果,以及所述辅助设备转发波束的测量结果,切换到与所述网络侧设备直接通信。
- 根据权利要求26所述的小区切换方法,其中,所述切换到与所述网络侧设备直接通信之后,还包括:所述终端断开与所述第二服务小区的连接。
- 一种小区切换装置,包括:获取模块,用于获取第一信息;处理模块,用于根据所述第一信息调度小区切换;其中,所述第一信息包括以下至少一项:第一服务小区和至少一个第一小区的测量结果,和调度信息;所述第一小区为所述第一服务小区的邻小区,或所述终端的第二服务小区;所述第一服务小区和所述至少一个第一小区为共享使用辅助设备的小区。
- 一种小区切换装置,包括:获取模块,用于获取所述终端的第一服务小区和至少一个第一小区的测量结果;处理模块,用于基于所述第一服务小区和至少一个第一小区的测量结果进行小区切换;其中,所述第一小区为所述第一服务小区的邻小区,或所述终端的第二服务小区;所述第一服务小区和所述至少一个第一小区为共享使用辅助设备的小区。
- 一种网络侧设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至16任一项所述的小区切换方法的步骤。
- 一种终端,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求17至27任一项所述的小区切换方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述 程序或指令被处理器执行时实现如权利要求1-16任一项所述的小区切换方法,或者实现如权利要求17至27任一项所述的小区切换方法的步骤。
- 一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1-16任一项所述的小区切换方法,或者实现如权利要求17至27任一项所述的小区切换方法的步骤。
- 一种计算机程序/程序产品,所述程序/程序产品被至少一个处理器执行以实现如权利要求1-16任一项所述的小区切换方法,或者实现如权利要求17至27任一项所述的小区切换方法的步骤。
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| EP22869236.4A EP4404628A4 (en) | 2021-09-14 | 2022-09-14 | Cell handover method and apparatus, and terminal and network side device |
| US18/604,037 US20240224130A1 (en) | 2021-09-14 | 2024-03-13 | Cell Handover Method, Terminal, and Network Side Device |
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| CN115811764A (zh) | 2023-03-17 |
| JP7675285B2 (ja) | 2025-05-12 |
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