WO2024022055A1 - Procédé et appareil de détermination de cellule candidate - Google Patents

Procédé et appareil de détermination de cellule candidate Download PDF

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Publication number
WO2024022055A1
WO2024022055A1 PCT/CN2023/105825 CN2023105825W WO2024022055A1 WO 2024022055 A1 WO2024022055 A1 WO 2024022055A1 CN 2023105825 W CN2023105825 W CN 2023105825W WO 2024022055 A1 WO2024022055 A1 WO 2024022055A1
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WO
WIPO (PCT)
Prior art keywords
cell
target
indication information
base station
candidate cells
Prior art date
Application number
PCT/CN2023/105825
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English (en)
Chinese (zh)
Inventor
王雷
曾二林
许萌
张不方
Original Assignee
大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2024022055A1 publication Critical patent/WO2024022055A1/fr

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Classifications

    • 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
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular, to a method and device for determining candidate cells.
  • a cell change mechanism based on Layer 1 (Layer1, L1)/Layer 2 (Layer, L2) commands will be introduced.
  • the terminal is allowed to pre-configure a series of candidate cells, that is, the terminal can obtain part or all of the configuration information of the candidate cells to be changed in the current cell in advance.
  • candidate cells are a series of cells that are preconfigured by the network side to the terminal and may be changed. If the terminal is required to perform measurements and report on all candidate cells, it will pose a challenge to the terminal's measurement reporting capability.
  • embodiments of the present disclosure provide a method and device for determining candidate cells.
  • embodiments of the present disclosure provide a method for determining candidate cells, which is applied to terminals and includes:
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal sends the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurement results of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • An indication information sent by the base station is received, and at least one target candidate cell is determined among all preconfigured candidate cells based on the indication information.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the sending the target cell measurement result of the target candidate cell to the base station includes:
  • the target cell measurement result of the target candidate cell is sent to the base station based on the MAC CE.
  • embodiments of the present disclosure provide a method for determining candidate cells, which is applied to a base station and includes:
  • the indication information being used to determine at least one target candidate cell among all preconfigured candidate cells;
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurements of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • sending the indication information to the terminal includes:
  • sending the indication information to the terminal includes:
  • Multiple indication information is sent to the terminal in succession; wherein the set of candidate cells determined by the indication information sent later is a subset of the set of candidate cells determined by the indication information sent earlier.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the method also includes:
  • the target change cell is determined based on the target cell measurement result.
  • embodiments of the present disclosure also provide a terminal, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory to perform the following operations:
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal sends the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurement results of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • An indication information sent by the base station is received, and at least one target candidate cell is determined among all preconfigured candidate cells based on the indication information.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cell include: beam-level measurement results corresponding to the target candidate cells and/or cell-level measurement results corresponding to each target candidate cell.
  • the sending the target cell measurement result of the target candidate cell to the base station includes:
  • the target cell measurement result of the target candidate cell is sent to the base station based on the MAC CE.
  • embodiments of the present disclosure also provide a base station, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • the indication information being used to determine at least one target candidate cell among all preconfigured candidate cells;
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurements of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • sending the indication information to the terminal includes:
  • sending the indication information to the terminal includes:
  • Multiple indication information is sent to the terminal one after another; optionally, the set of candidate cells determined by the indication information sent later is a subset of the set of candidate cells determined by the indication information sent earlier.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the operations also include:
  • the target change cell is determined based on the target cell measurement result.
  • embodiments of the present disclosure also provide a device for determining candidate cells, which is applied to a terminal and includes:
  • a first receiving unit configured to receive indication information sent by the base station, and determine at least one target candidate cell among all preconfigured candidate cells based on the indication information;
  • the first sending unit is configured to send the target cell measurement result of the target candidate cell to the base station.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal sends the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurement results of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • An indication information sent by the base station is received, and at least one target candidate cell is determined among all preconfigured candidate cells based on the indication information.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • sending target cell measurements of the target candidate cell to the base station Results include:
  • the target cell measurement result of the target candidate cell is sent to the base station based on the MAC CE.
  • embodiments of the present disclosure also provide a device for determining candidate cells, which is applied to a base station and includes:
  • a second sending unit configured to send indication information to the terminal, where the indication information is used to determine at least one target candidate cell among all preconfigured candidate cells;
  • the second receiving unit is configured to receive the target cell measurement result of the target candidate cell sent by the terminal.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurements of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • sending the indication information to the terminal includes:
  • sending the indication information to the terminal includes:
  • Multiple indication information is sent to the terminal one after another; optionally, the set of candidate cells determined by the indication information sent later is a subset of the set of candidate cells determined by the indication information sent earlier.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the device also includes:
  • a cell determination unit configured to determine a target change cell based on the target cell measurement result.
  • embodiments of the present disclosure also provide a processor-readable storage medium, the processor-readable storage medium stores a computer program, the computer program is used to cause the processor to execute the first aspect as described above.
  • the terminal determines at least one target candidate cell among all preconfigured candidate cells based on the indication information, and sends the target cell measurement result of the target candidate cell to the base station. , the terminal does not need to report the cell measurement results of all candidate cells to the base station. It only needs to send to the base station the target cell measurement results of the target candidate cells that the base station wants the terminal to report, that is, there is no need to report cells of other cells (candidate cells other than the target candidate cell). The measurement results avoid unnecessary measurement overhead, save the power consumption of the terminal, and reduce the measurement capability requirements of the terminal.
  • Figure 1 is one of the schematic flow diagrams of a method for determining candidate cells provided by an embodiment of the present disclosure
  • Figure 2 is a second schematic flowchart of a method for determining candidate cells provided by an embodiment of the present disclosure
  • Figure 3 is one of the structural schematic diagrams of a device for determining candidate cells provided by an embodiment of the present disclosure
  • Figure 4 is a second structural schematic diagram of a device for determining candidate cells provided by an embodiment of the present disclosure
  • Figure 5 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic structural diagram of a base station provided by an embodiment of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations.
  • the character "/” generally indicates that the related objects are in an "or” relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar to it.
  • a suitable system may be the global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet radio service (GPRS) system, long-term Evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (long term evolution advanced, LTE-A) system, universal mobile telecommunication system (UMTS), global interoperability for microwave access (WiMAX) system, 5G New Radio (NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • GPRS general packet radio service
  • LTE long-term Evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX global interoperability for microwave access
  • 5G New Radio (NR) system etc.
  • EPS evolved packet
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc.
  • the names of user equipment may also be different.
  • the terminal equipment may be called user equipment.
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a Radio Access Network (RAN).
  • the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cellular phone").
  • “Telephone” and computers with mobile terminal devices which may be, for example, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange speech and/or data with the radio access network.
  • mobile terminal devices may be, for example, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange speech and/or data with the radio access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistants
  • Wireless terminal equipment may also be called a system, a subscriber unit, a subscriber station, a mobile station, Mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent Agent) and user device are not limited in the embodiments of this disclosure.
  • the network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name.
  • Network equipment can be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal equipment and the rest of the access network, which can include the Internet. Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices also coordinate attribute management of the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or it can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), or home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , home base station (femto), pico base station (pico), etc., are not limited in the embodiments of the present disclosure.
  • network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes.
  • the centralized unit and distributed unit may also be arranged geographically separately.
  • the terminal When the terminal receives unicast services in the RRC connected state, in order to ensure the service continuity of the terminal, the terminal needs to perform cell switching during the movement process.
  • Current cell handover methods mainly include ordinary handover under the control of the base station, conditional handover triggered by the terminal to ensure handover reliability, and dual-activation protocol stack handover that supports lossless handover. These handover methods are all based on the terminal's Layer 3 (Layer3, L3) measurement results, and the L3 measurement results are the result of L3 filtering and other processing. Therefore, the terminal can usually be connected after performing handover based on L3 measurement or reporting processes. Enter a new cell with relatively stable signal quality, but the handover process delay based on L3 measurement is also relatively high.
  • a cell change mechanism based on L1/L2 commands will be introduced.
  • the network no longer instructs the terminal to perform handover by sending L3 handover commands, but pre-configures a series of candidate cells for the terminal, and then uses the L1 downlink control information based on the measurement results reported by the terminal.
  • Control commands such as Downlink Control Information (DCI) or L2 Media Access Control Control Element (MAC CE) instruct the terminal to perform cell changes.
  • DCI Downlink Control Information
  • MAC CE Media Access Control Control Element
  • the terminal In order to support the cell change mechanism based on L1/L2 commands, one possible way is for the terminal to report beam-level measurement results for the pre-configured candidate cells. Based on the beam-level measurement results reported by the terminal, the base station uses L1/L2 commands to instruct the terminal in the candidate cell. Perform cell changes in the community.
  • candidate cells are a series of cells that are preconfigured by the network side to the terminal and may be changed. If the terminal is required to perform measurements and report on all candidate cells, it will pose a challenge to the terminal's measurement reporting capability.
  • embodiments of the present disclosure provide a method for determining candidate cells.
  • the terminal determines the candidate cells that need to perform measurements according to the instructions of the base station, and the terminal reports
  • the measurement results corresponding to the filtered cells are determined by the base station based on the measurement results of the candidate cells reported by the terminal.
  • the target community is to be changed.
  • Figure 1 is one of the schematic flow charts of a method for determining candidate cells provided by an embodiment of the present disclosure.
  • the method of determining a candidate cell provided by an embodiment of the present disclosure can be applied to terminals, including:
  • Step 110 Receive the indication information sent by the base station, and determine at least one target candidate cell among all preconfigured candidate cells based on the indication information;
  • the terminal can also be called a terminal device.
  • the candidate cell refers to the next cell that the terminal may access.
  • the terminal can obtain the information of all candidate cells (such as cell identifiers, etc.) through preconfiguration.
  • the base station can Each cell is pre-configured with candidate cells to be changed corresponding to the cell. After the terminal accesses the current serving cell, the base station delivers all candidate cells corresponding to the current serving cell to the terminal.
  • the target candidate cell refers to the candidate cell for which the base station hopes to receive cell measurement results among all candidate cells.
  • the indication information is used to instruct the terminal to determine the candidate cell (that is, the target candidate cell) that needs to report the cell measurement result to the base station.
  • Step 120 Send the target cell measurement result of the target candidate cell to the base station.
  • the terminal sends the target cell measurement result of the target candidate cell to the base station, that is, the terminal sends to the base station the measurement result that the base station wants the terminal to report.
  • all current candidate cells include cell1, cell2, cell3 and cell4.
  • Target candidate cells cell1 and cell2 are determined through indication information, and the cell measurement results of cell1 and cell2 are sent to the base station. It should be understood that the target cell measurement results of the target candidate cell are are the cell measurement results of cell1 and cell2.
  • the terminal determines at least one target candidate cell among all preconfigured candidate cells based on the indication information, and provides the base
  • the station sends the target cell measurement results of the target candidate cells.
  • the terminal does not need to report the cell measurement results of all candidate cells to the base station. It only needs to send the target cell measurement results of the target candidate cells that the base station wants the terminal to report to the base station. That is, there is no need to report other cells. (candidate cells other than the target candidate cell), avoids unnecessary reporting overhead, saves the power consumption of the terminal, reduces the reporting capability requirements of the terminal, and does not require the terminal to conduct all candidate cells In the case of measurement, unnecessary measurement overhead is also avoided and the measurement capability requirements of the terminal are reduced.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal sends the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurement results of all candidate cells.
  • the cell identity corresponding to the target candidate cell is used to identify the cell identity of the target candidate cell.
  • the cell identifier may be a cell global identifier (NR Cell Global Identifier, NCGI) or an NR cell identifier (NR Cell Identity, NCI).
  • NCGI is composed of the Public Land Mobile Network Identifier (Public Land Mobile Network) to which the cell belongs. ID, PLMN ID) and NR cell identifier.
  • the NR cell identifier consists of base station identifier (gNB Identifier, gNB ID) and cell number (cell ID).
  • gNB ID is used in a public land mobile network (Public Land Mobile).
  • Network, PLMN) identifies a gNB.
  • the terminal can receive the cell identifier corresponding to each target candidate cell in turn, or can receive a cell identifier list composed of the cell identifiers corresponding to all target candidate cells.
  • the cell identifier list is a portion of the candidates among all current candidate cells that the base station wants the terminal to report cell measurement results. Identification list of cells (target candidate cells).
  • the mapping relationship in which the base station expects the terminal to report cell measurement results in all current candidate cells means that the terminal can determine whether to report the cell measurement results of the candidate cells through the mapping relationship.
  • the current list of all candidate cells is ⁇ cell1, cell2, cell3, cell4 ⁇
  • the mapping relationship is ⁇ 0101 ⁇
  • each element (celli, i in the list of all candidate cells represents cell number 1, 2, 3 or 4 ) has a one-to-one correspondence with the elements (0 or 1) in the mapping relationship.
  • 0 means not to send the cell measurement results of the cell to the base station
  • 1 means to send the cell measurement results of the cell to the base station.
  • the mapping relationship in this embodiment represents: The cell measurement results of cell1 and cell3 are not sent to the base station, but the cell measurement results of cell2 and cell4 are sent to the base station. It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the mapping relationship can also be in other forms, as long as the target candidate cell can be identified.
  • the sending condition may be a condition for the terminal to report cell measurement results to the base station, that is, determining the candidate cell corresponding to the cell measurement result that satisfies the sending condition as the target candidate cell.
  • the terminal determines at least one target candidate cell among all preconfigured candidate cells based on the indication information, and sends the target cell measurement result of the target candidate cell to the base station.
  • the terminal There is no need to report the cell measurement results of all candidate cells to the base station. You only need to send to the base station the target cell measurement results of the target candidate cells that the base station wants the terminal to report. That is, there is no need to report the cell measurement results of other cells (candidate cells other than the target candidate cell).
  • the indication information includes the cell identifier corresponding to the target candidate cell and/or the mapping relationship
  • the terminal does not need to measure all candidate cells, but only needs to measure the target candidate cell, which avoids unnecessary measurement overhead and reduces the measurement capability requirements of the terminal.
  • the sending conditions include any one of the following or a combination thereof:
  • Layer 1 can also be called Layer1 or physical layer
  • Layer 3 can also be called Layer3 or RRC layer.
  • the measurement standard can include Reference Signal Receiving Power. , RSRP) and Reference Signal Receiving Quality (RSRQ), etc.
  • RSRP is used to represent the received power of the measured signal.
  • RSRQ is used to represent the reception quality of the measured signal, which can be determined based on RSRP and received signal strength indicator information (Received Signal Strength Indicator, RSSI).
  • the reference signal may include a synchronization signal and a physical broadcast channel block (Synchronization Signal and Physical Broadcast Channel block, SSB) reference signal or a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), etc.
  • SSB Synchronization Signal and Physical Broadcast Channel block
  • CSI-RS Channel State Information Reference Signal
  • the Layer 1 reference signal received power RSRP threshold is used: after the terminal performs Layer 1 reference signal received power measurement on a candidate cell, if the RSRP of the reference signal of the candidate cell satisfies the threshold, determine that the candidate cell is The target candidate cell sends the target cell measurement result of the candidate cell to the base station. For example, if the L1 RSRP in the cell measurement result of the candidate cell is higher than the reference signal received power RSRP threshold of layer 1, the candidate cell is determined to be the target candidate cell.
  • the reference signal received power RSRQ threshold of Layer 1 is used: after the terminal performs Layer 1 reference signal received power measurement on a candidate cell, if the RSRQ of the reference signal of the candidate cell meets the threshold, determine that the candidate cell is The target candidate cell sends the target cell measurement result of the candidate cell to the base station. For example, if the L1RSRQ in the cell measurement result of the candidate cell is higher than the reference signal received power RSRQ threshold of layer 1, the candidate cell is determined to be the target candidate cell.
  • the Layer 3 reference signal received power RSRP threshold is used: after the terminal performs Layer 3 reference signal received power measurement on a candidate cell, if the RSRP of the reference signal of the candidate cell meets the threshold, determine that the candidate cell is The target candidate cell sends the target cell measurement result of the candidate cell to the base station. For example, if the L3 RSRP in the cell measurement result of the candidate cell is higher than the reference signal received power RSRP threshold of layer 3, the candidate cell is determined to be the target candidate cell.
  • the reference signal received power RSRQ threshold of Layer 3 is used: after the terminal performs Layer 3 reference signal received power measurement on a candidate cell, when the RSRQ of the reference signal of the candidate cell meets the threshold, determine that the candidate cell is The target candidate cell sends the target cell measurement result of the candidate cell to the base station. For example, if the L3RSRQ in the cell measurement result of the candidate cell is higher than the reference signal received power RSRQ threshold of layer 3, the candidate cell is determined to be the target candidate cell.
  • the number of times that the target cell measurement result needs to meet the threshold to send the target cell measurement result means that among the cell measurement results of the candidate cells, only the cell measurement result corresponding to the candidate cell that meets the threshold number of times will be sent by the terminal. It should be understood that if The candidate cell under this condition is the target candidate cell. For example, the number of times that the target cell measurement result needs to satisfy the threshold is 3, and all candidate cells are measured multiple times (which can be periodic measurements). The number of times cell1 meets the threshold is 1, the number of times cell2 meets the threshold is 2, and the number of times cell3 needs to meet the threshold is 3.
  • the number of times the threshold is met is 3, and the number of times cell4 meets the threshold is 4, then cell3 and cell4 are target candidate cells, and the cell measurement results of cell3 and cell4 are sent to the base station, that is, the target cell measurement results of the target candidate cell are sent to the base station.
  • the consecutive number of times that the target cell measurement result needs to meet the threshold to send the target cell means that among the cell measurement results of the candidate cells, only the cell measurement results corresponding to the candidate cells that continuously meet the threshold number of times will be sent by the terminal.
  • the candidate cell that meets this condition is the target candidate cell.
  • the number of times that the target cell measurement result needs to continuously satisfy the threshold is 3, all candidate cells are measured multiple times (which can be periodic measurements), the number of times cell1 needs to continuously satisfy the threshold is 1, and the number of times cell2 needs to continuously satisfy the threshold is 3.
  • the number of times cell3 continuously satisfies the threshold is 3, and the number of times cell4 satisfies the threshold continuously is 4.
  • cell3 and cell4 are target candidate cells, and the cell measurement results of cell3 and cell4 are sent to the base station, that is, the target cell measurement results of the target candidate cell are sent to the base station.
  • the threshold value in the number of times that the target cell measurement result needs to be sent to meet the threshold and the number of consecutive times that the target cell measurement result needs to be sent to meet the threshold value may include any one of the following or a combination thereof: the reference signal received power RSRP threshold of layer 1; The reference signal reception quality RSRQ threshold of layer 1; the reference signal reception power RSRP threshold of layer 3; the reference signal reception quality RSRQ threshold of layer 3. It should be understood that when the threshold value in the number of times that the target cell measurement result needs to be sent to satisfy the threshold value and the consecutive number of times that the target cell measurement result needs to be sent to satisfy the threshold value is a combination of multiple thresholds, meeting the threshold value once means that the threshold value is met once. Multiple thresholds were met in the measurement.
  • the transmission conditions may also include the received signal strength indicator (Received Signal Strength Indicator, RSSI) and/or the signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR).
  • RSSI is the average power of all signals received in a Symbol (including pilot signals, data signals, neighbor interference signals and noise signals, etc.);
  • SINR is the difference between the strength of the received useful signal and the received interference signal ( noise and interference) intensity ratio.
  • the transmission conditions include the L1 measurement threshold (the reference signal reception power RSRP threshold of layer 1 and the reference signal reception quality RSRQ threshold of layer 1) and the L3 measurement threshold (the reference signal reception of layer 3
  • L3 measurement is conducive to obtaining stable channel condition results
  • L1 measurement is conducive to obtaining measurement results with smaller delays, so that the terminal can filter the measurement of target candidate cells by sending conditions
  • the cell measurement results that the base station hopes to obtain are sent to the base station, which reduces the reporting capability requirements of the terminal and meets the measurement result requirements of the base station.
  • the method for determining candidate cells provided by the embodiments of the present disclosure further improves the efficiency by setting the number of times that the target cell measurement results need to be sent to meet the threshold and/or the number of consecutive times that the target cell measurement results need to be sent to meet the threshold. This ensures the stability of reporting measurement results.
  • the indication information also includes the cell identity of the current serving cell.
  • the current serving cell refers to the cell that the terminal currently accesses.
  • the terminal can obtain the information of all candidate cells corresponding to the current serving cell through preconfiguration (such as the candidate cell list). ), the terminal can determine the information of all candidate cells corresponding to the current serving cell (such as the candidate cell list) through the cell identifier of the current serving cell.
  • the candidate cell list corresponding to the current serving cell can be determined through the cell identifier of the current serving cell, which can be understood as determining the cell that the base station currently wants to be changed. Corresponding candidate cell list, thereby determining the target candidate cell according to the indication information.
  • the method for determining candidate cells provided by the embodiments of the present disclosure, by indicating the cell identity of the terminal's current serving cell, enables the terminal to determine all candidate cells corresponding to the current serving cell among the candidate cells corresponding to multiple preconfigured cells, and then determine the target Candidate area.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • An indication information sent by the base station is received, and at least one target candidate cell is determined among all preconfigured candidate cells based on the indication information.
  • the terminal receives the indication information sent by the base station once, and determines the target candidate cell based on the indication information received this time.
  • one indication information can carry two contents: the cell identity corresponding to the target candidate cell and the transmission condition.
  • One indication information can also carry the cell identity, mapping relationship and transmission condition corresponding to the target candidate cell. There are three conditions in total.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • the terminal receives indication information sent by multiple base stations, and determines the target candidate cell according to the order in which the indication information is sent by the base station and the content indicated by each indication information.
  • all candidate cells may include ⁇ cell1, cell2, cell3, cell4 ⁇ .
  • the base station sends the cell identifiers corresponding to cell1, cell2 and cell3 for the first time, and the terminal determines that the first candidate cell set is ⁇ cell1, cell2, cell3 ⁇ ;
  • the base station sends the cell identifiers corresponding to cell1 and cell2 for the second time, and the terminal determines that the second candidate cell set is ⁇ cell1, cell2 ⁇ ;
  • the base station sends the cell identifier corresponding to cell1 for the third time, and the terminal determines that the target candidate cell is cell1.
  • the terminal can perform cell measurement on the candidate cell indicated by the indication information each time after receiving the indication information sent by the base station; the terminal can also perform cell measurement on the candidate cell based on multiple signals after receiving the indication information sent by the base station for the last time. Perform cell measurement on the target candidate cell determined by the instruction information.
  • the base station and the terminal can configure the number of sending indication information based on pre-configuration (such as protocol regulations or parameter settings, etc.), system information or dedicated signaling.
  • pre-configuration such as protocol regulations or parameter settings, etc.
  • the pre-configured number is 2, and the terminal receives 2 After receiving the indication information, determine the target candidate cell and perform cell measurement; the terminal can also perform cell measurement through the preset time. If the terminal does not receive new indication information within the preset time after receiving the current indication information, the terminal The current indication information may be determined to be the last indication information, and cell measurement may be performed.
  • multiple indication information can be carried by different types of messages.
  • the indication information is received through MAC CE for the first time, and the indication information is received through DCI for the second time. It should be understood that the above are examples provided to facilitate understanding of the embodiments of the present disclosure and should not constitute any limitation to the embodiments of the present disclosure.
  • the candidate cell determination method provided by the embodiments of the present disclosure can determine the target candidate cell through multiple indication information sent successively, and can be applied to situations where the terminal changes greatly, such as the situation where the terminal movement trajectory changes greatly, through multiple instructions.
  • the information gradually narrows the scope of candidate cells, which can improve the usability of cell measurement result reporting.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the cell measurement results may include two measurement result types: beam-level measurement results and cell-level measurement results.
  • the target cell measurement results refer to the type of measurement results that the base station wants the terminal to report.
  • the terminal performs beam-level measurement and cell-level measurement on the target candidate cell, obtains the beam-level measurement result of the target candidate cell and the cell-level measurement result corresponding to the target candidate cell, and the base station instructs the terminal to report the beam-level measurement result, Then the target cell measurement results are beam-level measurement results, and the terminal only reports the beam-level measurement results to the base station.
  • the type of the target cell measurement result can be carried by the indication information, which is used to instruct the base station to report the corresponding type of cell measurement result.
  • the terminal can also obtain the type of cell measurement result that needs to be reported through other signaling or configuration information. It should be understood that , the above are examples to facilitate understanding of the embodiments of the present disclosure, and should not constitute any limitation on the present disclosure.
  • the sending the target cell measurement result of the target candidate cell to the base station includes:
  • the target cell measurement result of the target candidate cell is sent to the base station based on the MAC CE.
  • the RRC message sent to the base station may carry the target cell measurement result of the target candidate cell.
  • the target candidate cell For sending the target cell measurement result of the target candidate cell to the base station based on MAC CE, the target candidate cell may be carried in the MAC CE sent to the base station.
  • the target cell measurement results For sending the target cell measurement result of the target candidate cell to the base station based on MAC CE, the target candidate cell may be carried in the MAC CE sent to the base station. The target cell measurement results.
  • Figure 2 is a second schematic flowchart of a method for determining candidate cells provided by an embodiment of the present disclosure.
  • the method for determining candidate cells provided by an embodiment of the present disclosure can be applied to base stations, including:
  • Step 210 Send indication information to the terminal, the indication information being used to determine at least one target candidate cell among all preconfigured candidate cells;
  • the indication information is used by the base station to indicate the target candidate cell to the terminal (that is, the candidate cell for which the base station wants the terminal to report cell measurement results).
  • All preconfigured candidate cells may be preconfigured by the base station for the terminal.
  • the base station can pre-configure candidate cells corresponding to the cell to be changed for each cell.
  • the base station issues all candidate cells corresponding to the current serving cell to the terminal.
  • the target candidate cell refers to the candidate cell for which the base station hopes to receive cell measurement results among all candidate cells.
  • the base station can determine the target candidate cell based on information such as the terminal's location, activity trajectory, movement speed, or signal quality of the candidate cell.
  • all current candidate cells include cell1, cell2, cell3 and cell4, which are located in the four directions of east, west, north and south respectively. If the base station determines that the terminal is moving to the east, it determines cell1 as the target candidate cell based on the movement direction of the terminal. It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit how the base station determines the target candidate cell.
  • Step 220 Receive the target cell measurement result of the target candidate cell sent by the terminal.
  • the base station receives the target cell measurement result of the target candidate cell sent by the terminal, that is, the base station receives the measurement result that the base station wants the terminal to report.
  • all current candidate cells include cell1, cell2, cell3 and cell4, and the target candidate cells are cell1 and cell2.
  • the base station receives the cell measurement results of cell1 and cell2 sent by the terminal. It should be understood that the target cell measurement result of the target candidate cell is Cell measurement results of cell1 and cell2.
  • the base station sends an instruction to the terminal. information, receiving the target cell measurement results of the target candidate cells sent by the terminal.
  • the base station does not need to receive the cell measurement results of all candidate cells, but only needs to receive the target cell measurement results of the target candidate cells. This avoids unnecessary reporting overhead on the terminal side and reduces The reporting capability requirements of the terminal avoid unnecessary measurement overhead on the terminal side when the terminal does not need to measure all candidate cells.
  • the power of the base station side can also be reduced. Consumption.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurements of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the measurement results of the sending cell need to meet the thresholds.
  • the measurement results of the sending cell need to meet the thresholds.
  • the transmission conditions include the L1 measurement threshold (the reference signal reception power RSRP threshold of layer 1 and the reference signal reception quality RSRQ threshold of layer 1) and the L3 measurement threshold (the reference signal reception of layer 3
  • L3 measurement is conducive to obtaining stable channel condition results
  • L1 measurement is conducive to obtaining measurement results with smaller delays, so that the terminal can filter the measurement of target candidate cells by sending conditions
  • the base station can receive the cell measurement results that the base station hopes to obtain, which reduces the reporting capability requirements for the terminal and meets the measurement result requirements of the base station.
  • the method for determining candidate cells provided by the embodiments of the present disclosure further improves the measurement results by setting the number of times that the target cell measurement results need to be sent to meet the threshold and/or the number of consecutive times that the target cell measurement results need to be sent to meet the threshold. Reporting stability.
  • the indication information also includes the cell identity of the current serving cell.
  • the cell identity of the current serving cell For an introduction to the cell identifier of the current serving cell, refer to the above introduction and will not be repeated here.
  • sending the indication information to the terminal includes:
  • sending an indication information to the terminal means that the base station sends the indication information to the terminal once.
  • sending the indication information to the terminal includes:
  • Multiple indication information is sent to the terminal in succession; wherein the set of candidate cells determined by the indication information sent later is a subset of the set of candidate cells determined by the indication information sent earlier.
  • the indication information sent by the base station for the first time can determine the first candidate cell set ⁇ cell1, cell2, cell3 ⁇
  • the indication information sent by the base station for the second time can determine the second candidate cell set ⁇ cell2, cell3 ⁇ .
  • the second set of candidate cells determined by the sent indication information is a subset of the first set of candidate cells determined by the previously sent indication information.
  • the target candidate cells are cell2 and cell3.
  • the instruction information sent successively by the base station can be based on the movement trajectory of the terminal or the small number sent.
  • the area measurement results are confirmed.
  • the base station determines that the candidate cells are cell1, cell2, and cell3, and sends indication information to the terminal for the first time; after the terminal moves for a period of time, the base station can determine the candidate cells in cell1, cell2, and cell3 based on the updated movement trajectory of the terminal. It is determined that cell2 and cell3 are more likely to be the cells to be accessed next, and the base station sends indication information to the terminal for the second time.
  • the base station sends indication information to the terminal for the first time, indicating that the candidate cells for which the current base station wants to report cell measurement results are cell1, cell2, and cell3.
  • the base station receives the cell measurement results of the candidate cells reported by the terminal for the first time. According to After selecting the two candidate cells with the best signals based on the received cell measurement results as target candidate cells, the indication information is sent to the terminal again. It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit how the base station determines the indication information sent multiple times.
  • the candidate cell determination method provided by the embodiments of the present disclosure sends multiple indication information to the terminal one after another, and the range of candidate cells determined by the multiple indication information sent one after another is sequentially narrowed, which reduces the requirements on the terminal's measurement capabilities.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the method also includes:
  • the target change cell is determined based on the target cell measurement result.
  • the target change cell refers to a cell selected from the target candidate cells for terminal access.
  • the target candidate cell with the largest RSRP or RSRQ may be selected as the target change cell.
  • the base station can only obtain the base station The station hopes that the terminal will send the target cell measurement results of the target candidate cells and determine the target change cell based on the target cell measurement results of the target candidate cells. There is no need to process the cell measurement results of all candidate cells, which reduces the power consumption of the base station.
  • Embodiment 1 The base station explicitly instructs the terminal which candidate cells need to perform measurement reporting, and the base station only sends the instruction information to the terminal once.
  • Step 1 For the terminal's current serving cell, the base station pre-configures a series of candidate cells to be changed for the current serving cell to support the terminal's cell change mechanism based on L1/L2 commands.
  • the set of all candidate cells can be: ⁇ candidatecell1, candidatecell2, candidatecell3, candidatecell4, candidatecell5 ⁇ .
  • Step 2 The base station sends indication information to the terminal through RRC message, MAC CE or DCI;
  • the content of the instruction information can include any one or a combination of the following:
  • the base station wants the terminal to report a partial list of candidate cell identities for which the cell measurement results are reported (i.e., the cell identities corresponding to the target candidate cells);
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results.
  • the content of the indication information may also include the cell identity of the current serving cell.
  • the indication information includes the cell identifier of the current serving cell and/or a partial list of candidate cell identifiers among all current candidate cells for which the base station wants the terminal to report cell measurement results.
  • the identification method may be a cell index, for example:
  • the identification method can also be the frequency point where the cell is located and the physical cell identifier PCI, for example
  • the target candidate cells that the base station hopes the terminal to report cell measurement results are candidatecell1 and candidatecell2, forming the target candidate cells.
  • Area set (a set of target candidate cells), which is a subset of the set of all candidate cells in step 1.
  • the indication information includes the current serving cell identifier and/or the mapping relationship in all current candidate cells that the base station wants the terminal to report cell measurement results.
  • the relationship is ⁇ 11000 ⁇ , then the base station wants the terminal to report the cell measurements of candidatecell1 and candidatecell2 in ascending order of cell index.
  • candidatecell1 and candidatecell2 form a target candidate cell set (a set of target candidate cells), which is a subset of the set of all candidate cells in step 1.
  • Step 3 The terminal determines the target candidate cell set according to the instruction information.
  • the terminal performs measurements on the cells in the target candidate cell set and reports the cell measurement results through RRC messages or MAC CE.
  • the cell measurement results may include any of the following or a combination thereof:
  • the cell identifier of the target candidate cell
  • the cell measurement results reported by the terminal include the cell identity and cell-level measurement results of the target candidate cell;
  • the cell measurement results reported by the terminal include the cell identification of the target candidate cell, and the cell-level measurement results and beam-level measurement results of the target candidate cell are also reported.
  • Step 4 The base station determines the target change cell to be changed by combining the cell-level measurement results and/or the beam-level measurement results in the cell measurement results (target cell measurement results reported by the terminal).
  • the cell-level measurement results include the L3 filtering mechanism, which reflects the stability of the signal quality of the candidate cells.
  • the base station selects the target candidate cell with the best cell-level measurement results as the target change cell.
  • the beam-level measurement results are used to select the cell corresponding to the optimal beam from the reported beam-level measurement results as the target change cell.
  • Embodiment 2 The base station decides to explicitly instruct the terminal which candidate cells need to perform measurement reporting, and the base station sends the instruction information twice to the terminal.
  • Step 1 For a certain serving cell currently used by the terminal, the base station provisions the serving cell.
  • a series of all candidate cells to be changed is set to support the terminal to perform a cell change mechanism based on L1/L2 commands.
  • the set of all candidate cells can be ⁇ candidatecell1, candidatecell2, candidatecell3, candidatecell4, candidatecell5 ⁇ .
  • Step 2 the base station sends the first indication information to the terminal through RRC message, MAC CE or DCI:
  • the content of the instruction information may include any of the following or a combination thereof:
  • a list of partial candidate cell identifiers among all current candidate cells for which the base station wants terminals to report cell measurement results (the cell identifier of the target candidate cell indicated by the first indication information can be understood as the target candidate cell indicated by the current indication information, and the final target candidate The cell is determined by multiple indication information);
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results.
  • the content of the indication information may also include the cell identity of the current serving cell.
  • the indication information includes the cell identifier of the current serving cell and/or a partial list of candidate cell identifiers among all current candidate cells for which the base station wants the terminal to report cell measurement results.
  • the identification method may be a cell index, for example:
  • the identification method can also be the frequency point where the cell is located and the physical cell identifier PCI, for example
  • the terminal is instructed to target the current serving cell.
  • the candidate cells that the base station hopes the terminal to report cell measurement results are candidatecell1, candidatecell2 and candidatecell3.
  • the first candidate cell set composed of these cells is a subset of the set of all candidate cells in step 1. This set is not The final set of target candidate cells, but narrowing the scope of all current candidate cells.
  • the indication information includes the current serving cell identifier and/or the mapping relationship in all current candidate cells that the base station expects the terminal to report cell measurement results.
  • the relationship is ⁇ 11100 ⁇ , Then the base station hopes that the terminal reports the cell measurement results of candidatecell1, candidatecell2 and candidatecell3 in ascending order of cell index.
  • the first candidate cell set composed of these cells is a subset of the set of all candidate cells in step 1. This set is not the final target candidate cell set. , but narrows the scope of all current candidate cells.
  • Step 3 Further, based on the latest candidate cell set obtained in step 2, the base station sends indication information to the terminal again through the RRC message or MACCE or DCI.
  • the content of the instruction information may include any of the following or a combination thereof:
  • the base station wants the terminal to report a partial list of candidate cell identities for which the cell measurement results are reported (i.e., the cell identities corresponding to the target candidate cells);
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results.
  • the content of the indication information may also include the cell identity of the current serving cell.
  • the indication information includes the cell identifier of the current serving cell and/or a partial list of candidate cell identifiers among all current candidate cells for which the base station wants the terminal to report cell measurement results.
  • the identification method may be a cell index, for example
  • the identification method can also be the frequency point where the cell is located and the physical cell identifier PCI, for example
  • the base station hopes that the candidate cells for which the terminal reports cell measurement results are candidatecell1 and candidatecell2. This set is a subset of the first candidate cell set obtained in step 2, forming the final target candidate cell set.
  • the indication information contains the mapping relationship between the current serving cell identifier and the current mapping relationship in all candidate cells that the base station wants the terminal to report cell measurement results.
  • the relationship is ⁇ 110 ⁇ , then the base station wants the terminal to report the cell measurement results of candidatecell1 and candidatecell2 in ascending order of cell index.
  • the set formed by these cells is a subset of the first candidate cell set in step 2, and the set formed by these cells is the target candidate cell set.
  • Step 4 After receiving the two instruction messages sent by the base station, the terminal passes two instructions The information determines the target candidate cell set. The terminal performs measurements on the cells in the target candidate cell set and reports the target cell measurement results of the target candidate cells through RRC messages or MAC CE.
  • the target cell measurement result content may include any of the following or a combination thereof:
  • the cell identifier of the target candidate cell
  • the cell measurement results reported by the terminal include the cell identity of the target candidate cell and the cell-level measurement results of the target candidate cell;
  • the cell measurement results reported by the terminal include the cell identity of the target candidate cell, and the cell-level measurement results and beam-level measurement results of the target candidate cell are also reported.
  • Step 5 The base station determines the target change cell to be changed by combining the cell-level measurement results and/or the beam-level measurement results in the cell measurement results (target cell measurement results reported by the terminal).
  • the cell-level measurement results include the L3 filtering mechanism, which reflects the stability of the signal quality of the candidate cells.
  • the base station selects the target candidate cell with the best cell-level measurement results as the target change cell.
  • the beam-level measurement results are used to select the cell corresponding to the optimal beam from the reported beam-level measurement results as the target change cell.
  • Embodiment 3 The base station decides to implicitly instruct the terminal which candidate cells need to perform measurement reporting.
  • Step 1 For the terminal's current serving cell, the base station pre-configures a series of candidate cells to be changed for the current serving cell to support the terminal's cell change mechanism based on L1/L2 commands.
  • the set of all candidate cells can be: ⁇ candidatecell1, candidatecell2, candidatecell3, candidatecell4, candidatecell5 ⁇ .
  • Step 2 The base station sends indication information to the terminal through an RRC message or MAC CE or DCI.
  • the content of the indication information may include the sending conditions, and the content of the indication information may also include the cell identity of the current serving cell.
  • Shipping conditions may include but are not limited to:
  • Reference signal received power RSRP threshold for layer 1 Reference signal received power RSRP threshold for layer 1;
  • Step 3 The terminal receives the instruction information sent by the base station.
  • the terminal finds that the instruction information does not contain explicit configuration information related to determining the target candidate cell.
  • the terminal performs measurements on all candidate cells corresponding to the preconfigured current serving cell.
  • Step 4 Based on step 3, the terminal obtains the L1 and/or L3 measurement results of all current candidate cells, and the terminal will not report the measurement results of all current candidate cells.
  • the terminal determines the target candidate cell set according to the transmission conditions in step 2, and reports the measurement results of the corresponding cells in the target candidate cell set.
  • the terminal finds that the L1 and/or L3 measurement results of candidatecell1 and candidatecell2 meet the RSRP/RSRQ threshold configured in step 2, and the number of times of satisfaction or the number of consecutive times of satisfaction also meet the requirements, the terminal considers that candidatecell1 and candidatecell2 constitute the target candidate cell set. , sending the target cell measurement results of candidatecell1 and candidatecell2 to the base station.
  • Step 5 After the terminal determines the set of target candidate cells according to the indication information, it reports the target cell measurement results of the target candidate cells through the RRC message or MAC CE.
  • the content of the target cell measurement results may include any of the following or a combination thereof:
  • the cell identifier of the target candidate cell
  • the target cell measurement results reported by the terminal include the cell identity of the target candidate cell and the cell-level measurement results of the target candidate cell; for example, the target cell measurement results reported by the terminal include the cell identity of the target candidate cell, and are reported together with the target candidate cell at the same time.
  • Cell-level measurement results and beam-level measurement results include the cell identity of the target candidate cell and the cell-level measurement results of the target candidate cell.
  • Step 6 The base station determines the target cell to be changed by combining the cell-level measurement results and/or the beam-level measurement results in the target cell measurement results (target cell measurement results reported by the terminal).
  • the cell-level measurement results include the L3 filtering mechanism, which reflects the stability of the signal quality of the candidate cells.
  • the base station selects the candidate cell with the best cell-level measurement results as the target cell. Or use the beam-level measurement results to select the cell corresponding to the optimal beam from the reported beam-level measurement results.
  • Figure 3 is one of the structural schematic diagrams of a device for determining a candidate cell provided by an embodiment of the present disclosure.
  • the device for determining a candidate cell provided by an embodiment of the present disclosure can be applied to a terminal and includes: a first receiving unit 310 and a first receiving unit 310. a sending unit 320;
  • the first receiving unit 310 is configured to receive indication information sent by the base station, and determine at least one target candidate cell among all preconfigured candidate cells based on the indication information;
  • the terminal can also be called a terminal device.
  • the candidate cell refers to the next cell that the terminal may access.
  • the terminal can obtain the information of all candidate cells (such as cell identifiers, etc.) through preconfiguration.
  • the base station can Each cell is pre-configured with candidate cells to be changed corresponding to the cell. After the terminal accesses the current serving cell, the base station delivers all candidate cells corresponding to the current serving cell to the terminal.
  • the target candidate cell refers to the candidate cell for which the base station hopes to receive cell measurement results among all candidate cells.
  • the indication information is used to instruct the terminal to determine the candidate cell (that is, the target candidate cell) that needs to report the cell measurement result to the base station.
  • the first sending unit 320 is configured to send the target cell measurement result of the target candidate cell to the base station.
  • the first sending unit 320 in the terminal sends the target cell measurement result of the target candidate cell to the base station, that is, the measurement result that the base station wants the terminal to report is sent to the base station.
  • all current candidate cells include cell1, cell2, cell3 and cell4.
  • the target candidate cells cell1 and cell2 are determined through the indication information, and the data of cell1 and cell2 are sent to the base station.
  • the cell measurement results it should be understood that the target cell measurement results of the target candidate cell are the cell measurement results of cell1 and cell2.
  • the terminal determines at least one target candidate cell among all preconfigured candidate cells based on the indication information, and sends the target cell measurement result of the target candidate cell to the base station.
  • the terminal There is no need to report the cell measurement results of all candidate cells to the base station. You only need to send to the base station the target cell measurement results of the target candidate cells that the base station wants the terminal to report. That is, there is no need to report the cell measurement results of other cells (candidate cells other than the target candidate cell). , avoid unnecessary measurement overhead, save the power consumption of the terminal, and reduce the measurement capability requirements of the terminal.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal sends the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurement results of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • An indication information sent by the base station is received, and at least one target candidate cell is determined among all preconfigured candidate cells based on the indication information.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the sending the target cell measurement result of the target candidate cell to the base station includes:
  • the target cell measurement result of the target candidate cell is sent to the base station based on the MAC CE.
  • the methods and devices provided by each embodiment of the present disclosure are based on the same application concept. Since the methods and devices solve problems in similar principles, the above-mentioned candidate cell determination device provided by the embodiments of the present disclosure can implement the above-mentioned candidate cell determination method embodiments. All method steps implemented can achieve the same technical effect. Therefore, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated.
  • Figure 4 is a second structural schematic diagram of a device for determining a candidate cell provided by an embodiment of the present disclosure.
  • the device for determining a candidate cell provided by an embodiment of the present disclosure is applied to a base station and includes: a second sending unit 410 and a second receiving unit 420;
  • the second sending unit 410 is configured to send indication information to the terminal, where the indication information is Determining at least one target candidate cell among all preconfigured candidate cells;
  • the indication information is used by the base station to indicate the target candidate cell to the terminal (that is, the candidate cell for which the base station wants the terminal to report cell measurement results).
  • All preconfigured candidate cells may be preconfigured by the base station for the terminal.
  • the base station can pre-configure candidate cells corresponding to the cell to be changed for each cell.
  • the base station issues all candidate cells corresponding to the current serving cell to the terminal.
  • the target candidate cell refers to the candidate cell for which the base station hopes to receive cell measurement results among all candidate cells.
  • the base station can determine the target candidate cell based on information such as the terminal's location, activity trajectory, movement speed, or signal quality of the candidate cell.
  • all current candidate cells include cell1, cell2, cell3 and cell4, which are located in the four directions of east, west, north and south respectively. If the base station determines that the terminal is moving to the east, it determines cell1 as the target candidate cell based on the movement direction of the terminal. It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit how the base station determines the target candidate cell.
  • the second receiving unit 420 is configured to receive the target cell measurement result of the target candidate cell sent by the terminal.
  • the second receiving unit 420 in the base station receives the target cell measurement result of the target candidate cell sent by the terminal, that is, the base station receives the measurement result that the base station wants the terminal to report.
  • all current candidate cells include cell1, cell2, cell3 and cell4, and the target candidate cells are cell1 and cell2.
  • the base station receives the cell measurement results of cell1 and cell2 sent by the terminal. It should be understood that the target cell measurement result of the target candidate cell is Cell measurement results of cell1 and cell2.
  • the base station sends instruction information to the terminal and receives the target cell measurement results of the target candidate cells sent by the terminal.
  • the base station does not need to receive the cell measurement results of all candidate cells, but only needs to receive the target candidate cell measurement results.
  • the target cell measurement results avoid unnecessary measurement overhead on the terminal side, and can also reduce power consumption on the base station side in subsequent processing of the cell measurement results.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurements of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the indication information also includes the cell identity of the current serving cell.
  • sending the indication information to the terminal includes:
  • sending the indication information to the terminal includes:
  • Multiple indication information is sent to the terminal one after another; optionally, the set of candidate cells determined by the indication information sent later is a subset of the set of candidate cells determined by the indication information sent earlier.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the device also includes:
  • a cell determination unit configured to determine a target change cell based on the target cell measurement result.
  • the methods and devices provided by each embodiment of the present disclosure are based on the same application concept. Since the methods and devices solve problems in similar principles, the above-mentioned candidate cell determination device provided by the embodiments of the present disclosure can implement the above-mentioned candidate cell determination method embodiments. All method steps implemented can achieve the same technical effect. Therefore, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated.
  • Figure 5 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in Figure 5, the terminal includes a memory 520, a transceiver 500 and a processor 510; the processor 510 and the memory 520 can also be physically arranged separately.
  • the memory 520 is used to store computer programs; the transceiver 500 is used to send and receive data under the control of the processor 510.
  • the transceiver 500 is used to receive and transmit data under the control of the processor 510.
  • the bus interface 540 may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 510 and various circuits of the memory represented by the memory 520 are linked together.
  • the bus interface 540 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • the transceiver 500 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, etc. Transmission medium.
  • a user interface 530 may also be included.
  • the user interface 530 may also be an interface capable of externally connecting internally required devices.
  • the connected devices include but are not limited to keypads, monitors, speakers, microphones, joysticks, etc.
  • the processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 510 when performing operations.
  • the processor 510 can be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable gate array.
  • Logic device Complex Programmable Logic Device, CPLD
  • the processor can also adopt a multi-core architecture.
  • the processor 510 calls the computer program stored in the memory 520 to perform operations corresponding to any of the determination methods for terminal candidate cells provided by the embodiments of the present disclosure according to the obtained executable instructions, for example:
  • the candidate cell refers to the next cell that the terminal may access.
  • the terminal can obtain the information of all candidate cells (such as cell identifiers, etc.) through preconfiguration.
  • the base station can preconfigure each cell corresponding to the cell.
  • the candidate cells to be changed after the terminal accesses the current serving cell, the base station issues all candidate cells corresponding to the current serving cell to the terminal.
  • the target candidate cell refers to the candidate cell for which the base station hopes to receive cell measurement results among all candidate cells.
  • the indication information is used to instruct the terminal to determine the candidate cell (that is, the target candidate cell) that needs to report the cell measurement result to the base station.
  • the terminal determines at least one target candidate cell among all preconfigured candidate cells based on the instruction information, and sends the target cell measurement results of the target candidate cell to the base station.
  • the terminal does not need to report all target candidate cells to the base station.
  • the cell measurement results of the candidate cells only need to be sent to the base station.
  • the target cell measurement results of the target candidate cells that the base station wants the terminal to report that is, there is no need to report the cell measurement results of other cells (candidate cells other than the target candidate cells), avoiding unnecessary reporting overhead, saving terminal power consumption, reducing the reporting capability requirements of the terminal, and, when the terminal does not need to measure all candidate cells, unnecessary measurement overhead is avoided, and the measurement capability requirements of the terminal are reduced.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal sends the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurement results of all candidate cells.
  • the cell identity corresponding to the target candidate cell is used to identify the cell identity of the target candidate cell.
  • the cell identifier may be NCGI or NCI, etc.
  • the terminal can receive the cell identifier corresponding to each target candidate cell in turn, or can receive a cell identifier list composed of the cell identifiers corresponding to all target candidate cells.
  • the cell identifier list is a portion of the candidates among all current candidate cells that the base station wants the terminal to report cell measurement results. Identification list of cells (target candidate cells). It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit the type of cell identification and the manner in which the cell identification is delivered.
  • the mapping relationship in which the base station expects the terminal to report cell measurement results in all current candidate cells means that the terminal can determine whether to report the cell measurement results of the candidate cells through the mapping relationship.
  • the current list of all candidate cells is ⁇ cell1, cell2, cell3, cell4 ⁇
  • the mapping relationship is ⁇ 0101 ⁇
  • each element (celli, i in the list of all candidate cells represents cell number 1, 2, 3 or 4 ) has a one-to-one correspondence with the elements (0 or 1) in the mapping relationship.
  • 0 means not to send the cell measurement results of the cell to the base station
  • 1 means to send the cell measurement results of the cell to the base station.
  • the mapping relationship in this embodiment represents: The cell measurement results of cell1 and cell3 are not sent to the base station, but the cell measurement results of cell2 and cell4 are sent to the base station. It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the mapping relationship can also be in other forms, as long as the target candidate cell can be identified.
  • the sending condition may be a condition for the terminal to report cell measurement results to the base station, that is, determining the candidate cell corresponding to the cell measurement result that satisfies the sending condition as the target candidate cell.
  • the terminal determines at least one target candidate cell among all preconfigured candidate cells based on the instruction information, and sends the target cell measurement results of the target candidate cell to the base station.
  • the terminal does not need to report all target candidate cells to the base station.
  • the cell measurement results of the candidate cells only need to be sent to the base station.
  • the reporting overhead saves the power consumption of the terminal and reduces the reporting capability requirements of the terminal.
  • the terminal does not need to All candidate cells need to be measured, and only the target candidate cells need to be measured, which avoids unnecessary measurement overhead and reduces the measurement capability requirements of the terminal.
  • the sending conditions include any one of the following or a combination thereof:
  • the measurement results of the sending cell need to meet the thresholds.
  • the measurement results of the sending cell need to meet the thresholds.
  • the transmission conditions include the L1 measurement threshold (the reference signal received power RSRP threshold of layer 1 and the reference signal reception quality RSRQ threshold of layer 1) and the L3 measurement threshold (the reference signal received power RSRP threshold of layer 3 and Layer 3 Reference signal reception quality (RSRQ threshold), L3 measurement is conducive to obtaining stable channel condition results, and L1 measurement is conducive to obtaining measurement results with smaller delays, so that the terminal can filter the measurement results of the target candidate cells through the transmission conditions and send the base station’s wishes to the base station.
  • the obtained cell measurement results reduce the reporting capability requirements of the terminal and meet the measurement result requirements of the base station.
  • the terminal provided by the embodiment of the present disclosure further improves the stability of measurement result reporting by setting the number of times that the target cell measurement result needs to meet the threshold and/or the number of consecutive times that the target cell measurement result needs to meet the threshold. .
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • An indication information sent by the base station is received, and at least one target candidate cell is determined among all preconfigured candidate cells based on the indication information.
  • the terminal receives the indication information sent by the base station once, and determines the target candidate cell based on the indication information received this time.
  • one indication information can carry two contents: the cell identity corresponding to the target candidate cell and the transmission condition.
  • One indication information can also carry the cell identity, mapping relationship and transmission condition corresponding to the target candidate cell. There are three conditions in total.
  • receiving the indication information sent by the base station, and determining at least one target candidate cell among all preconfigured candidate cells based on the indication information includes:
  • the terminal receives indication information sent by multiple base stations, and determines the target candidate cell according to the order in which the indication information is sent by the base station and the content indicated by each indication information.
  • all candidate cells may include ⁇ cell1, cell2, cell3, cell4 ⁇ , and the base station No.
  • the base station sends the cell identifiers corresponding to cell1, cell2 and cell3 once, and the terminal determines the first candidate cell set as ⁇ cell1, cell2, cell3 ⁇ ; the base station sends the cell identifiers corresponding to cell1 and cell2 for the second time, and the terminal determines the second candidate cell set as ⁇ cell1, cell2, cell3 ⁇ . cell1, cell2 ⁇ ; the base station sends the cell identity corresponding to cell1 for the third time, and the terminal determines that the target candidate cell is cell1.
  • the terminal can perform cell measurements on the candidate cell indicated by the indication information each time after receiving the indication information sent by the base station; the terminal can also perform cell measurements on the candidate cell determined based on multiple indication information after receiving the indication information sent by the base station for the last time.
  • Target candidate cells perform cell measurements.
  • the terminal provided by the embodiment of the present disclosure can determine the target candidate cell through multiple indication information sent successively, and can be applied to situations where the terminal changes greatly, such as the situation where the terminal movement trajectory changes greatly, and the candidates can be gradually narrowed down through multiple indication information.
  • Cell range can improve the availability of cell measurement result reporting.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the sending the target cell measurement result of the target candidate cell to the base station includes:
  • the target cell measurement result of the target candidate cell is sent to the base station based on the MAC CE.
  • the above-mentioned terminal provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment for determining candidate cells applied to the terminal, And the same technical effects can be achieved. The same parts and beneficial effects in this embodiment as in the method embodiment will not be described in detail here.
  • Figure 6 is a schematic structural diagram of a base station provided by an embodiment of the present disclosure. As shown in Figure 6, the base station includes a memory 620, a transceiver 600 and a processor 610; the processor 610 and the memory 620 can also be physically separated.
  • the memory 620 is used to store computer programs; the transceiver 600 is used to send and receive data under the control of the processor 610.
  • the transceiver 600 is used to receive and transmit data under the control of the processor 610.
  • the bus interface 630 may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 610 and various circuits of the memory represented by the memory 620 are linked together.
  • the bus interface 630 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • the transceiver 600 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, etc. Transmission medium.
  • the processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 610 when performing operations.
  • the processor 610 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable gate array.
  • Logic device Complex Programmable Logic Device, CPLD
  • the processor can also adopt a multi-core architecture.
  • the processor 610 calls the computer program stored in the memory 620 to perform operations corresponding to any of the methods for determining the candidate cells provided by the embodiments of the present disclosure that are applied to the candidate cells of the base station according to the obtained executable instructions, for example:
  • the indication information being used to determine at least one target candidate cell among all preconfigured candidate cells;
  • the indication information is used by the base station to indicate the target candidate cell to the terminal (that is, the candidate cell for which the base station wants the terminal to report cell measurement results).
  • All preconfigured candidate cells may be preconfigured by the base station for the terminal.
  • the base station can pre-configure candidate cells corresponding to the cell to be changed for each cell.
  • the base station issues all candidate cells corresponding to the current serving cell to the terminal.
  • the target candidate cell refers to the candidate cell for which the base station hopes to receive cell measurement results among all candidate cells.
  • the base station can determine the target candidate cell based on information such as the terminal's location, activity trajectory, movement speed, or signal quality of the candidate cell.
  • all current candidate cells include cell1, cell2, cell3 and cell4, which are located in the four directions of east, west, north and south respectively. If the base station determines that the terminal is moving to the east, it determines cell1 as the target candidate cell based on the movement direction of the terminal. It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit how the base station determines the target candidate cell.
  • the base station sends instruction information to the terminal and receives the target cell measurement results of the target candidate cells sent by the terminal.
  • the base station does not need to receive the cell measurement results of all candidate cells, but only needs to receive the target cell measurement results of the target candidate cells. , avoiding unnecessary reporting overhead on the terminal side and reducing the reporting capability requirements for the terminal.
  • unnecessary measurement overhead on the terminal side is avoided, and in the subsequent measurement of the cells During the processing of measurement results, the power consumption on the base station side can also be reduced.
  • the indication information includes any one of the following or a combination thereof:
  • the base station in all current candidate cells hopes that the terminal reports the mapping relationship of the cell measurement results
  • a sending condition is used to determine the target candidate cell based on cell measurements of all candidate cells.
  • the sending conditions include any one of the following or a combination thereof:
  • the measurement results of the sending cell need to meet the thresholds.
  • the measurement results of the sending cell need to meet the thresholds.
  • the transmission conditions include L1 measurement thresholds (reference signal received power RSRP threshold of layer 1 and reference signal received quality RSRQ threshold of layer 1) and L3 measurement thresholds (reference signal received power RSRP threshold of layer 3 and The reference signal reception quality RSRQ threshold of layer 3), L3 measurement is conducive to obtaining stable channel condition results, and L1 measurement is conducive to obtaining measurement results with smaller delays, so that the terminal can filter the measurement results of the target candidate cells through the transmission conditions, and the base station can Receiving the cell measurement results that the base station hopes to obtain reduces the reporting capability requirements for the terminal and meets the measurement result requirements of the base station.
  • the base station provided by the embodiment of the present disclosure further improves the stability of reporting measurement results by setting the number of times that the target cell measurement result needs to meet the threshold and/or the number of consecutive times that the target cell measurement result needs to meet the threshold.
  • the indication information also includes the cell identity of the current serving cell.
  • the cell identity of the current serving cell For an introduction to the cell identifier of the current serving cell, refer to the above introduction and will not be repeated here.
  • sending the indication information to the terminal includes:
  • sending an indication information to the terminal means that the base station sends the indication information to the terminal once.
  • sending the indication information to the terminal includes:
  • Multiple indication information is sent to the terminal in succession; wherein the set of candidate cells determined by the indication information sent later is a subset of the set of candidate cells determined by the indication information sent earlier.
  • the indication information sent by the base station for the first time can determine the first candidate cell set ⁇ cell1, cell2, cell3 ⁇
  • the indication information sent by the base station for the second time can determine the second candidate cell set ⁇ cell2, cell3 ⁇ .
  • the second set of candidate cells determined by the sent indication information is a subset of the first set of candidate cells determined by the previously sent indication information.
  • the target candidate cells are cell2 and cell3.
  • the indication information sent successively by the base station can be determined based on the movement trajectory of the terminal or the sent cell measurement results.
  • the base station determines that the candidate cells are cell1, cell2, and cell3, and sends indication information to the terminal for the first time; after the terminal moves for a period of time, the base station can determine the candidate cells in cell1, cell2, and cell3 based on the updated movement trajectory of the terminal. It is determined among cell2 and cell3 that cell2 and cell3 are more likely to be the cells to be accessed next, and indication information is sent to the terminal for the second time.
  • the base station sends indication information to the terminal for the first time, indicating that the candidate cells for which the current base station wants to report cell measurement results are cell1, cell2, and cell3.
  • the base station receives the cell measurement results of the candidate cells reported by the terminal for the first time. According to After selecting the two candidate cells with the best signals based on the received cell measurement results as target candidate cells, the indication information is sent to the terminal again. It should be understood that the above are examples to facilitate understanding of the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit how the base station determines the indication information sent multiple times.
  • the base station provided by the embodiments of the present disclosure successively sends multiple indication information to the terminal, and the range of candidate cells determined by the multiple indication information sent successively is narrowed in sequence, which reduces the requirements on the terminal's measurement capabilities.
  • the indication information is carried by a first message, and the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the first message includes: a radio resource control RRC message, a control element MAC CE of the media access control layer, or a downlink control information DCI.
  • the target cell measurement results of the target candidate cells include: beam-level measurement results corresponding to each target candidate cell and/or cell-level measurement results corresponding to each target candidate cell.
  • the operations also include:
  • the target change cell is determined based on the target cell measurement result.
  • the above-mentioned base station provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment for determining candidate cells applied to the base station, and can achieve the same technical effect.
  • This article will no longer be explained here.
  • the parts and beneficial effects in the embodiments that are the same as those in the method embodiments will be described in detail.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, Contains several instructions for making a A computer device (which may be a personal computer, a server, a network device, etc.) or a processor executes all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .
  • embodiments of the present disclosure also provide a processor-readable storage medium.
  • the processor-readable storage medium stores a computer program.
  • the computer program is used to cause the processor to execute the methods provided by the above embodiments.
  • the method for determining candidate cells can be applied to terminals, including: receiving indication information sent by a base station, determining at least one target candidate cell among all preconfigured candidate cells based on the indication information; sending the target candidate cell to the base station The target cell measurement results.
  • embodiments of the present disclosure also provide a processor-readable storage medium.
  • the processor-readable storage medium stores a computer program.
  • the computer program is used to cause the processor to execute the methods provided by the above embodiments.
  • a candidate cell determination method, applied to a base station includes: sending indication information to a terminal, the indication information being used to determine at least one target candidate cell among all preconfigured candidate cells; receiving the target candidate cell sent by the terminal The target cell measurement results.
  • the processor-readable storage medium may be any available media or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • embodiments of the present disclosure may be provided as methods, systems system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.
  • a computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
  • processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to
  • the instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Selon des modes de réalisation, la présente invention concerne un procédé et un appareil de détermination de cellule candidate. Le procédé de détermination de cellule candidate appliqué à un terminal consiste à : recevoir des informations d'instruction envoyées par une station de base, et déterminer, sur la base des informations d'instruction, au moins une cellule candidate cible parmi toutes les cellules candidates pré-configurées ; et envoyer à la station de base un résultat de mesure de cellule cible de la cellule candidate cible. Selon le procédé et l'appareil de détermination de cellule candidate décrits par les modes de réalisation de la présente invention, le terminal n'a pas besoin de rapporter des résultats de mesure de cellule de toutes les cellules candidates à la station de base, et il lui suffit d'envoyer à la station de base le résultat de mesure de cellule cible de la cellule candidate cible pour laquelle la station de base souhaite un rapport, ce qui permet de réduire le surdébit de rapport inutile, de réduire la consommation d'énergie du terminal, et de réduire les exigences concernant la capacité de rapport du terminal.
PCT/CN2023/105825 2022-07-27 2023-07-05 Procédé et appareil de détermination de cellule candidate WO2024022055A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112351443A (zh) * 2019-08-08 2021-02-09 华为技术有限公司 通信方法及装置
CN112789895A (zh) * 2019-03-29 2021-05-11 Oppo广东移动通信有限公司 一种切换方法及装置、终端、网络设备
CN113424583A (zh) * 2019-02-13 2021-09-21 Oppo广东移动通信有限公司 小区切换的方法和设备
CN114466416A (zh) * 2020-11-10 2022-05-10 大唐移动通信设备有限公司 一种小区切换方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113424583A (zh) * 2019-02-13 2021-09-21 Oppo广东移动通信有限公司 小区切换的方法和设备
CN112789895A (zh) * 2019-03-29 2021-05-11 Oppo广东移动通信有限公司 一种切换方法及装置、终端、网络设备
CN112351443A (zh) * 2019-08-08 2021-02-09 华为技术有限公司 通信方法及装置
CN114466416A (zh) * 2020-11-10 2022-05-10 大唐移动通信设备有限公司 一种小区切换方法和装置

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