The method of reselecting cells, communication mechanisms, and storage media readable by a computer.

Abstract

The invention relates to a method for reselecting cells and equipment such that, after cell reselecting, the terminal equipment can complete the localization procedure based on the acquired Survey Reference Signal (SRS) resource without re-establishing the Radio Resource Control (RRC) connection or re-acquiring the SRS resource, thereby reducing the terminal equipment's power consumption and satisfying the terminal equipment's low power consumption requirements. This method includes: The terminal equipment receives first indicator information, wherein the first indicator information indicates one or more localization zones, each one or more localization zones comprising multiple cells, and the cells contained within the localization zone have the same resource configuration information; and the terminal equipment performs cell reselecting within the localization zone indicated by the first indicator information, and the terminal equipment reselects the cells contained within the localization zone.

Description

A cell reselection method and device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 18, 2021, with application number 202111112845.6 and invention name “A method and device for cell reselection”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a method and device for cell reselection. Background Art

[0003] In the existing uplink positioning process, the serving base station configures resources for sending sounding reference signals (SRS) (also called SRS resources) for the terminal, and the serving base station notifies the terminal of the SRS resources. The terminal can send SRS on the SRS resources for subsequent positioning.

[0004] Generally speaking, SRS resources are configured at the cell level, meaning that SRS resources are configured for each cell. When in an inactive state, a terminal performs periodic radio resource management (RRM) measurements on neighboring cells and selects a cell with higher reference signal receiving power (RSRP) according to certain rules to ensure the terminal's communication quality. This process is called cell reselection. During cell reselection, the SRS resources configured by the serving base station for the current cell are released. After the terminal reselects to the target cell, it re-establishes a radio resource control (RRC) connection with the target cell and obtains the SRS resources configured for the target cell, allowing it to transmit the SRS on these resources.

[0005] During the above cell reselection process, the terminal needs to re-establish an RRC connection with the target cell and re-acquire SRS resources, which increases the power consumption of the terminal and consumes more power, which is contrary to the low power consumption requirement of the terminal.

[0006] Summary of the Invention

[0007] The present application provides a method and apparatus for cell reselection, so that after a terminal reselects a cell, it is not necessary to re-establish an RRC connection or re-acquire SRS resources. The positioning process can be completed based on the already acquired SRS resources, thereby reducing the energy consumption of the terminal and meeting the low power consumption requirements of the terminal.

[0008] In a first aspect, a cell reselection method is provided. The method can be performed by a first communication device, which can be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system. The following description uses a terminal as an example.

[0009] A terminal receives first indication information, where the first indication information indicates one or more positioning areas. Each of the one or more positioning areas includes multiple cells. The multiple cells within a positioning area apply the same resource configuration information. The resource configuration information is used to configure reference signal resources. The reference signal resources are used by the terminal to transmit reference signals, which are used to determine the terminal's location. The terminal performs cell reselection within the positioning area indicated by the first indication information, and the terminal reselects to a cell within the positioning area. The terminal performs cell reselection within the positioning area indicated by the first indication information. The candidate cells may include cells within the positioning area and cells outside the positioning area. The solution provided in the embodiments of the present application enables the terminal to reselect to a cell within the positioning area after ultimately undergoing the cell reselection process. The solution provided in the first aspect ensures that, when a network device performs cell reselection within a cell within the positioning area, it can reselect to a cell within the positioning area, rather than to a cell outside the positioning area. In this way, the terminal does not need to reestablish an RRC connection after reselecting a cell, and can obtain SRS configuration information more frequently, thereby reducing energy consumption of the terminal.

[0010] In a possible implementation of the first aspect, the method further includes: the terminal receives second indication information, the second indication information being used to notify the terminal that the priority of the first type of cell is higher than the priority of the second type of cell. In other words, the second indication information is used for the terminal to learn that the priority of the first type of cell is higher than the priority of the second type of cell. The first type of cell includes the serving cell and cells in the positioning area among the adjacent cells of the serving cell. The second type of cell is a cell in the adjacent cells of the serving cell that is not in the positioning area. In the cell reselection process, there are some scenarios where the priority of the cell is required. In these scenarios, the terminal will reselect to the cell with the highest priority among the candidate cells. Therefore, in this implementation, by configuring the priority of the first type of cell to be higher than the priority of the second type of cell, it is ensured that when there are cells in the positioning area and cells outside the positioning area among the candidate cells, the terminal can reselect to the cell in the positioning area with a higher priority according to the cell priority, thereby eliminating the need for the terminal to obtain reference signal resource configuration information more frequently, thereby reducing the energy consumption of the terminal.

[0011] In a possible implementation of the first aspect, the terminal performs cell reselection within the positioning area indicated by the first indication information, and the terminal reselects to a cell included in the positioning area, including: the terminal performs cell reselection within the positioning area indicated by the first indication information, and the terminal obtains candidate cells including a first type of cell and a second type of cell, and the first type of cell and the second type of cell are cells with different priorities at different frequencies or cells belonging to different radio access technologies (RATs). The terminal reselects to a cell of the first type with a higher priority between the first type of cell and the second type of cell. In the cell reselection process, when the candidate cell is a cell with different priorities at different frequencies or a cell belonging to different RATs, the priority of the candidate cell is utilized, and ultimately, the terminal reselects to the cell with the highest priority among the candidate cells. In this implementation, the priority of the first type of cell is increased, enabling the terminal to reselect to a cell within the positioning area, eliminating the need for the terminal to frequently obtain reference signal resource configuration information, thereby reducing energy consumption of the terminal.

[0012] In a possible implementation of the first aspect, the second indication information is specifically used to indicate to the terminal that a frequency priority of a first type of cell is higher than a frequency priority of a second type of cell. In this implementation, by configuring the frequency priorities, the terminal learns that the priority of the first type of cell is higher than the priority of the second type of cell.

[0013] In a possible implementation of the first aspect, the second indication information is specifically used to indicate to the terminal that the priority of the identifier of the first type of cell is higher than the priority of the identifier of the second type of cell. In other words, the second indication information is specifically used to indicate that the priority of the cell corresponding to the first type of identifier is higher than the priority of the cell corresponding to the second type of identifier, the first type of identifier includes the identifier of each cell in the first type of cell, and the second type of identifier includes the identifier of each cell in the second type of cell. In this implementation, by configuring the priority of the cell identifier, the terminal is informed that the priority of the first type of cell is higher than the priority of the second type of cell.

[0014] In a possible implementation of the first aspect, the second indication information carries a first adjustment value, and the first adjustment value is used to operate with the value of the first target parameter or the value of the second target parameter to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the second target parameter is used to indicate the priority of the second type of cell. The value of the first target parameter is positively correlated with the priority of the first type of cell, and the value of the second target parameter is positively correlated with the priority of the second type of cell. In this implementation, the priority of the first type of cell is adjusted by the first adjustment value so that the priority of the first type of cell is higher than the priority of the second type of cell, or the priority of the second type of cell is adjusted by the first adjustment so that the priority of the second type of cell is lower than the priority of the first type of cell.

[0015] In a possible implementation of the first aspect, the second indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control (RRC) message. In this implementation, the second indication information can be carried in different messages. For example, the SIB or Pos SIB carries the second indication information, and a single signaling can be used to indicate to multiple terminals within a positioning area that the priority of a first type of cell is higher than the priority of a second type of cell. The second indication information can also be carried in RRC signaling, thereby indicating to multiple terminals within multiple positioning areas that the priority of each first type of cell is higher than the priority of the corresponding second type of cell.

[0016] In a possible implementation of the first aspect, the method further includes: the terminal receiving third indication information, the third indication information being used to notify the terminal that the R value of the first type of cell is higher than the R value of the second type of cell. In other words, the third indication information is used by the terminal to learn that the R value of the first type of cell is higher than the R value of the second type of cell. For example, the third indication information is used by the terminal to adjust the R value so that the R value of the first type of cell is higher than the R value of the second type of cell. The first type of cell includes the serving cell and cells within the positioning area among the serving cell's neighboring cells. The second type of cell includes cells outside the positioning area among the serving cell's neighboring cells. In the cell reselection process, there are some scenarios where the cell's R value is required. In these scenarios, the terminal will reselect to the cell with the highest R value among the candidate cells. Therefore, in this implementation, by configuring the R value of the first type of cell to be higher than the R value of the second type of cell, when the candidate cells include cells within the positioning area and cells outside the positioning area, the terminal can reselect to the cell within the positioning area with the higher R value based on the cell's R value. This eliminates the need for the terminal to frequently obtain reference signal resource configuration information, thereby reducing terminal energy consumption.

[0017] In a possible implementation of the first aspect, the terminal performs cell reselection within the positioning area indicated by the first indication information, and the terminal reselects to a cell included in the positioning area, including: the terminal performs cell reselection within the positioning area indicated by the first indication information, and the terminal obtains alternative cells including a first type of cell and a second type of cell, and the first type of cell and the second type of cell belong to the same frequency cell or a cell with different frequencies and the same priority. The terminal reselects to the first type of cell with a higher R value between the first type of cell and the second type of cell. In the cell reselection process, when the alternative cell belongs to the same frequency cell or a cell with different frequencies and the same priority, it is necessary to use the R value of the alternative cell, and finally the terminal reselects to the cell with the highest R value among the alternative cells. In this implementation, the R value of the first type of cell is improved, so that the terminal can reselect to the cell within the positioning area, and the terminal does not need to obtain reference signal resource configuration information more frequently, thereby reducing the energy consumption of the terminal.

[0018] In a possible implementation of the first aspect, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the third target parameter or the value of the fourth target parameter to reduce the value of the third target parameter or increase the value of the fourth target parameter. The third target parameter is the temporary bias of the first type of cell, the reselection bias of the first type of cell, or the reference signal received power (RSRP) of the first type of cell. The fourth target parameter is the temporary bias of the second type of cell, the reselection bias of the second type of cell, or the reference signal received power (RSRP) of the second type of cell. In this implementation, a specific method for increasing the R value of the first type of cell is provided, and correspondingly, a method for reducing the R value of the second type of cell is also provided, thereby increasing the diversity of the solutions.

[0019] In a possible implementation of the first aspect, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0020] Rn=Qmeas,n-Qoffset-Qoffset temp +Qoffsetdeta, or satisfy the formula:

[0021] Rn=Qmeas,n-Qoffset*N-Qoffset temp ,

[0022] Among them, Rn is used to represent the R value of the first type of cell, Qmeans,n is used to represent the received signal strength value measured by the adjacent cell of the serving cell, Qoffset is used to represent the reselection bias of the first type of cell, Qoffset tempIn this embodiment, the general R criterion is improved, and a possible formula is given to increase the R value of the first type of cell.

[0023] In a possible implementation of the first aspect, the third indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0024] On the second aspect, a method for cell reselection is provided, including: a network device sends a first indication information, the first indication information is used to indicate one or more positioning areas, so that the terminal performs cell reselection within the positioning area indicated by the first indication information, and reselects to a cell included in the positioning area, each of the one or more positioning areas includes multiple cells, and the multiple cells included in a positioning area are subject to the same resource configuration information, the resource configuration information is used to configure reference signal resources, the reference signal resources are used for the terminal to send a reference signal, and the reference signal is used to determine the position of the terminal.

[0025] In a possible implementation of the second aspect, the method also includes: the network device sends a second indication message, and the second indication message is used to notify the terminal that the priority of the first type of cell is higher than the priority of the second type of cell. In other words, the second indication message is used for the terminal to know that the priority of the first type of cell is higher than the priority of the second type of cell. The first type of cell includes the service cell, and the cells in the adjacent cells of the service cell that belong to the positioning area, and the second type of cell is the cell in the adjacent cells of the service cell that does not belong to the positioning area.

[0026] In a possible implementation of the second aspect, the second indication information is specifically used to indicate that the priority of the frequency of the first type of cell of the terminal is higher than the priority of the frequency of the second type of cell.

[0027] In a possible implementation of the second aspect, the second indication information is specifically used to indicate that the priority of the identifier of the first type of cell of the terminal is higher than the priority of the identifier of the second type of cell. In other words, the second indication information is specifically used to indicate that the priority of the cell corresponding to the first type of identifier is higher than the priority of the cell corresponding to the second type of identifier. The first type of identifier includes the identifier of each cell in the first type of cell, and the second type of identifier includes the identifier of each cell in the second type of cell.

[0028] In a possible implementation of the second aspect, the second indication information carries a first adjustment value, and the first adjustment value is used to operate with the value of the first target parameter or the value of the second target value to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the second target parameter is used to indicate the priority of the second type of cell. The value of the first target parameter is positively correlated with the priority of the first type of cell, and the value of the second target parameter is positively correlated with the priority of the second type of cell.

[0029] In a possible implementation of the second aspect, the second indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0030] In a possible implementation of the second aspect, the method also includes: the network device sends a third indication information, and the third indication information is used for the terminal to know that the R value of the first type of cell is higher than the R value of the second type of cell, the first type of cell includes the service cell, and the cells in the adjacent cells of the service cell that belong to the positioning area, and the second type of cell is the cell in the adjacent cells of the service cell that does not belong to the positioning area.

[0031] In a possible implementation of the second aspect, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the third target parameter or the value of the fourth target parameter to reduce the value of the third target parameter or increase the value of the fourth target parameter. The third target parameter is a temporary bias of a first type of cell, a reselection bias of a first type of cell, or a reference signal received power RSRP of a first type of cell, and the fourth target parameter is a temporary bias of a second type of cell, a reselection bias of a second type of cell, or a reference signal received power RSRP of a second type of cell.

[0032] In a possible implementation of the second aspect, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0033] Rn=Qmeas,n-Qoffset-Qoffset temp +Qoffsetdeta, or satisfy the formula:

[0034] Rn=Qmeas,n-Qoffset*N-Qoffset temp .

[0035] Among them, Rn is used to represent the R value of the first type of cell, Qmeans,n is used to represent the received signal strength value measured by the adjacent cell of the serving cell, Qoffset is used to represent the reselection bias of the first type of cell, Qoffset tempA temporary offset used to indicate a cell of the first type.

[0036] In a possible implementation of the second aspect, the third indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0037] According to a third aspect, a method for cell reselection is provided, comprising: a terminal receiving first indication information, the first indication information being used to indicate one or more positioning areas, each of the one or more positioning areas including multiple cells, the multiple cells included in a positioning area applying the same resource configuration information, the resource configuration information being used to configure reference signal resources, the reference signal resources being used by the terminal to send reference signals, and the reference signals being used to determine the location of the terminal. The terminal receiving second indication information, the second indication information being used for the terminal to learn that the priority of a first type of cell is higher than the priority of a second type of cell, the first type of cell including a serving cell and cells within the positioning area among neighboring cells of the serving cell, the second type of cell being cells within the positioning area among neighboring cells of the serving cell. The terminal reselects a cell within the positioning area indicated by the first indication information, and reselects to a cell of the first type with a higher priority indicated by the second indication information.

[0038] In a possible implementation of the third aspect, the second indication information is specifically used to indicate that the priority of the frequency of the first type of cell of the terminal is higher than the priority of the frequency of the second type of cell.

[0039] In a possible implementation of the third aspect, the second indication information is specifically used to indicate that the priority of the identifier of the first type of cell of the terminal is higher than the priority of the identifier of the second type of cell. In other words, the second indication information is specifically used to indicate that the priority of the cell corresponding to the first type of identifier is higher than the priority of the cell corresponding to the second type of identifier. The first type of identifier includes the identifier of each cell in the first type of cell, and the second type of identifier includes the identifier of each cell in the second type of cell.

[0040] In a possible implementation of the third aspect, the second indication information carries a first adjustment value, and the first adjustment value is used to operate with the value of the first target parameter or the value of the second target value to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the second target parameter is used to indicate the priority of the second type of cell. The value of the first target parameter is positively correlated with the priority of the first type of cell, and the value of the second target parameter is positively correlated with the priority of the second type of cell.

[0041] In a possible implementation of the third aspect, the second indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0042] In a fourth aspect, a method for cell reselection is provided, comprising: a network device sending first indication information, the first indication information being used to indicate one or more positioning areas, each of the one or more positioning areas including multiple cells, the multiple cells included in a positioning area applying the same resource configuration information, the resource configuration information being used to configure reference signal resources, the reference signal resources being used by a terminal to send a reference signal, and the reference signal being used to determine the location of the terminal. The network device sending second indication information, the second indication information being used by the terminal to learn that a first type of cell has a higher priority than a second type of cell, the first type of cell including a serving cell and cells within the positioning area among neighboring cells of the serving cell, the second type of cell being cells within the positioning area among neighboring cells of the serving cell, so that the terminal performs cell reselection within the positioning area indicated by the first indication information, and reselects to a first type of cell with a higher priority indicated by the second indication information.

[0043] In a possible implementation of the fourth aspect, the second indication information is specifically used to indicate that the priority of the frequency of the first type of cell of the terminal is higher than the priority of the frequency of the second type of cell.

[0044] In a possible implementation of the fourth aspect, the second indication information is specifically used to indicate that the priority of the identifier of the first type of cell of the terminal is higher than the priority of the identifier of the second type of cell. In other words, the second indication information is specifically used to indicate that the priority of the cell corresponding to the first type of identifier is higher than the priority of the cell corresponding to the second type of identifier. The first type of identifier includes the identifier of each cell in the first type of cell, and the second type of identifier includes the identifier of each cell in the second type of cell.

[0045] In a possible implementation of the fourth aspect, the second indication information carries a first adjustment value, and the first adjustment value is used to operate with the value of the first target parameter or the value of the second target value to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the second target parameter is used to indicate the priority of the second type of cell. The value of the first target parameter is positively correlated with the priority of the first type of cell, and the value of the second target parameter is positively correlated with the priority of the second type of cell.

[0046] In a possible implementation of the fourth aspect, the second indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0047] In a fifth aspect, a method for cell reselection is provided, comprising: a terminal receiving first indication information, the first indication information being used to indicate one or more positioning areas, each of the one or more positioning areas including multiple cells, the multiple cells included in a positioning area applying the same resource configuration information, the resource configuration information being used to configure reference signal resources, the reference signal resources being used by the terminal to send reference signals, and the reference signals being used to determine the location of the terminal. The terminal receiving second indication information, the second indication information carrying a first adjustment value, the first adjustment value being used by the terminal to increase the priority of a first type of cell, such that the priority of the first type of cell is higher than that of a second type of cell, the first type of cell including a serving cell and cells within the positioning area among neighboring cells of the serving cell, the second type of cell being cells within the positioning area among neighboring cells of the serving cell. The terminal performing cell reselection within the positioning area indicated by the first indication information, reselecting to a cell of the first type with a higher priority.

[0048] In a possible implementation of the fifth aspect, the first adjustment value is used to operate with the value of the first target parameter to increase the value of the first target parameter, the value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the first target parameter is positively correlated with the priority of the first type of cell.

[0049] In a possible implementation of the fifth aspect, the first adjustment value is used to perform an addition operation on the value of the first target parameter to increase the value of the first target parameter.

[0050] In a possible implementation of the fifth aspect, the first adjustment value is used to perform a multiplication operation with the value of the first target parameter to increase the value of the first target parameter.

[0051] In a possible implementation of the fifth aspect, the first adjustment value is used to replace the priority of the first type of cell, so that the priority of the first type of cell after replacement is higher than the priority of the first type of cell before replacement.

[0052] In a possible implementation of the fifth aspect, the first adjustment value is used by the terminal to increase the priority of the frequency of the first type of cell, so that the priority of the frequency of the first type of cell is higher than the priority of the frequency of the second type of cell.

[0053] In a possible implementation of the fifth aspect, the first adjustment value is used to perform a subtraction operation on the value of the second target parameter to reduce the value of the second target parameter.

[0054] In a possible implementation of the fifth aspect, the first adjustment value is used to perform a division operation on the value of the second target parameter to reduce the value of the second target parameter.

[0055] In a possible implementation of the fifth aspect, the first adjustment value is used to replace the priority of the second type of cell, so that the priority of the second type of cell after replacement is lower than the priority of the second type of cell before replacement.

[0056] In a possible implementation of the fifth aspect, the first adjustment value is used by the terminal to lower the priority of the frequency of the second type of cell, so that the priority of the frequency of the second type of cell is lower than the priority of the frequency of the first type of cell.

[0057] In a sixth aspect, a method for cell reselection is provided, comprising: a network device sending first indication information, the first indication information being used to indicate one or more positioning areas, each of the one or more positioning areas including multiple cells, the multiple cells included in a positioning area applying the same resource configuration information, the resource configuration information being used to configure reference signal resources, the reference signal resources being used by a terminal to send a reference signal, and the reference signal being used to determine the location of the terminal. The network device sending second indication information, the second indication information carrying a first adjustment value, the first adjustment value being used by the terminal to increase the priority of a first type of cell, so that the priority of the first type of cell is higher than that of a second type of cell, the first type of cell including a serving cell and cells within the positioning area among neighboring cells of the serving cell, the second type of cell being cells within the positioning area among neighboring cells of the serving cell. This enables the terminal to perform cell reselection within the positioning area indicated by the first indication information, and reselect to a cell of the first type with a higher priority.

[0058] In a possible implementation of the sixth aspect, the first adjustment value is used to operate with the value of the first target parameter to increase the value of the first target parameter, the value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the first target parameter is positively correlated with the priority of the first type of cell.

[0059] In a possible implementation of the sixth aspect, the first adjustment value is used to perform an addition operation on the value of the first target parameter to increase the value of the first target parameter.

[0060] In a possible implementation of the sixth aspect, the first adjustment value is used to perform a multiplication operation with the value of the first target parameter to increase the value of the first target parameter.

[0061] In a possible implementation of the sixth aspect, the first adjustment value is used to replace the priority of the first type of cell, so that the priority of the first type of cell after replacement is higher than the priority of the first type of cell before replacement.

[0062] In a possible implementation of the sixth aspect, the first adjustment value is used by the terminal to increase the priority of the frequency of the first type of cell, so that the priority of the frequency of the first type of cell is higher than the priority of the frequency of the second type of cell.

[0063] In a possible implementation of the sixth aspect, the first adjustment value is used to perform a subtraction operation on the value of the second target parameter to reduce the value of the second target parameter.

[0064] In a possible implementation of the sixth aspect, the first adjustment value is used to perform a division operation on the value of the second target parameter to reduce the value of the second target parameter.

[0065] In a possible implementation of the sixth aspect, the first adjustment value is used to replace the priority of the second type of cell, so that the priority of the second type of cell after replacement is lower than the priority of the second type of cell before replacement.

[0066] In a possible implementation of the sixth aspect, the first adjustment value is used by the terminal to lower the priority of the frequency of the second type of cell, so that the priority of the frequency of the second type of cell is lower than the priority of the frequency of the first type of cell.

[0067] The seventh aspect provides a method for cell reselection, comprising: a terminal receives first indication information, the first indication information is used to indicate one or more positioning areas, each of the one or more positioning areas includes multiple cells, the multiple cells included in a positioning area apply the same resource configuration information, the resource configuration information is used to configure reference signal resources, the reference signal resources are used by the terminal to send reference signals, and the reference signals are used to determine the location of the terminal. The terminal receives third indication information, the third indication information is used for the terminal to know that the R value of the first type of cell is higher than the R value of the second type of cell, the first type of cell includes the service cell, and the cells in the adjacent cells of the service cell that belong to the positioning area, and the second type of cell is the cell in the adjacent cells of the service cell that does not belong to the positioning area. The terminal performs cell reselection in the positioning area indicated by the first indication information, and reselects to the first type of cell indicated by the second indication information with a higher R value.

[0068] In a possible implementation of the seventh aspect, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the third target parameter to reduce the value of the third target parameter. The third target parameter is a temporary bias of the first type of cell, a reselection bias of the first type of cell, or a reference signal received power RSRP of the first type of cell.

[0069] In a possible implementation manner of the seventh aspect, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0070] Rn=Qmeas,n-Qoffset-Qoffset temp +Qoffsetdeta,

[0071] In a possible implementation manner of the seventh aspect, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0072] Rn=Qmeas,n-Qoffset*N-Qoffsettem.

[0073] Among them, Rn is used to represent the R value of the first type of cell, Qmeans,n is used to represent the received signal strength value measured by the adjacent cell of the serving cell, Qoffset is used to represent the reselection bias of the first type of cell, Qoffset temp A temporary offset used to indicate a cell of the first type.

[0074] In a possible implementation of the seventh aspect, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the fourth target parameter to increase the value of the fourth target parameter. The fourth target parameter is a temporary bias of the second type of cell, a reselection bias of the second type of cell, or a reference signal received power RSRP of the second type of cell.

[0075] In a possible implementation of the seventh aspect, the third indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0076] An eighth aspect provides a method for cell reselection, comprising: a network device sending first indication information, the first indication information being used to indicate one or more positioning areas, each of the one or more positioning areas including multiple cells, the multiple cells included in a positioning area applying the same resource configuration information, the resource configuration information being used to configure reference signal resources, the reference signal resources being used by a terminal to send a reference signal, and the reference signal being used to determine the location of the terminal. The network device sending third indication information, the third indication information being used by the terminal to learn that an R value of a first type of cell is higher than an R value of a second type of cell, the first type of cell including a serving cell and cells within the positioning area among neighboring cells of the serving cell, the second type of cell being cells within the positioning area among neighboring cells of the serving cell, so that the terminal performs cell reselection within the positioning area indicated by the first indication information, and reselects to a first type of cell having a higher R value indicated by the third indication information.

[0077] In a possible implementation of the eighth aspect, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the third target parameter to reduce the value of the third target parameter. The third target parameter is a temporary bias of the first type of cell, a reselection bias of the first type of cell, or a reference signal received power RSRP of the first type of cell.

[0078] In a possible implementation manner of the eighth aspect, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0079] Rn=Qmeas,n-Qoffset-Qoffset temp +Qoffsetdeta.

[0080] In a possible implementation manner of the eighth aspect, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0081] Rn=Qmeas,n-Qoffset*N-Qoffset temp .

[0082] Among them, Rn is used to represent the R value of the first type of cell, Qmeans,n is used to represent the received signal strength value measured by the adjacent cell of the serving cell, Qoffset is used to represent the reselection bias of the first type of cell, Qoffset temp A temporary offset used to indicate a cell of the first type.

[0083] In a possible implementation of the eighth aspect, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the fourth target parameter to increase the value of the fourth target parameter. The fourth target parameter is the temporary bias of the second type of cell, the reselection bias of the second type of cell, or the reference signal received power RSRP of the second type of cell.

[0084] In a possible implementation of the eighth aspect, the third indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0085] In a ninth aspect, a terminal is provided, the terminal having the function of implementing the cell reselection method of the first, third, fifth, or seventh aspects. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

[0086] In a tenth aspect, embodiments of the present application provide a network device having the function of implementing the cell reselection method according to the second, fourth, sixth, or eighth aspects described above. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions.

[0087] In the eleventh aspect, the present application provides a terminal comprising a processor and a memory, the memory being used to store a computer program, and the processor being used to execute the computer program stored in the memory, so that the device executes the method described in the first aspect, the third aspect, the fifth aspect or the seventh aspect.

[0088] In the twelfth aspect, the present application provides a network device, which includes a processor and a memory, the memory is used to store computer programs, and the processor is used to execute the computer programs stored in the memory, so that the device performs the method described in the second aspect, the fourth aspect, the sixth aspect or the eighth aspect.

[0089] In the thirteenth aspect, a communication system is provided, which includes the terminal described in the ninth aspect or the eleventh aspect, and the network device described in the ninth aspect and the twelfth aspect.

[0090] In a fourteenth aspect, the present application provides a chip system comprising a processor for implementing the functions of the network device or terminal in the methods of the above aspects. In one possible design, the chip system further comprises a memory for storing program instructions and / or data. The chip system may be composed of a chip alone or may include a chip and other discrete components.

[0091] In a fifteenth aspect, a computer program product is provided, comprising: a computer program code, which, when run, enables the methods performed by the network device or terminal in the above aspects to be executed.

[0092] In a sixteenth aspect, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed, it implements the method executed by the network device or terminal in the above aspects.

[0093] In an embodiment of the present application, the network device can first configure one or more positioning areas for the terminal, with each positioning area corresponding to a reference signal resource, and each positioning area includes multiple cells. In other words, multiple cells correspond to a reference signal resource. This ensures that when the network device performs cell reselection in a cell within the positioning area, it can reselect to a cell within the positioning area, rather than reselecting to a cell outside the positioning area. This ensures that after the terminal reselects a cell, it does not need to frequently obtain SRS configuration information, thereby reducing the terminal's energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] FIG1 is a network architecture diagram of a communication system applicable to an embodiment of the present application;

[0095] FIG2 is a network architecture diagram of another communication system applicable to an embodiment of the present application;

[0096] FIG3 is a network architecture diagram of another communication system applicable to an embodiment of the present application;

[0097] FIG4 is a network architecture diagram of another communication system applicable to an embodiment of the present application;

[0098] FIG5 is a schematic diagram of a flow chart of an uplink positioning method provided in an embodiment of the present application;

[0099] FIG6 is a schematic diagram of an exemplary flow chart of an uplink positioning method according to an embodiment of the present application;

[0100] FIG7 is a flowchart of a cell reselection method provided in an embodiment of the present application;

[0101] FIG8 is a schematic diagram of a scenario of a cell reselection method provided in an embodiment of the present application;

[0102] FIG9 is a schematic diagram of a scenario of a cell reselection method provided in an embodiment of the present application;

[0103] FIG10 is a flowchart of a cell reselection method provided in an embodiment of the present application;

[0104] FIG11 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0105] FIG12 is another schematic structural diagram of a communication device provided in an embodiment of the present application;

[0106] FIG13 is another structural diagram of the first communication device provided in an embodiment of the present application;

[0107] FIG14 is another structural diagram of the second communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0108] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0109] Before introducing the present application, some of the terms used in the embodiments of the present application are briefly explained to facilitate understanding by those skilled in the art.

[0110] 1) The terminal in the embodiment of the present application (also referred to as user equipment (UE)) is a device with wireless transceiver function. The terminal device can communicate with the core network via the radio access network (RAN) and exchange voice and / or data with the RAN. The terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal device can be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The terminal device may include, for example, UE, wireless terminal device, mobile terminal device, device-to-device communication (D2D) terminal device, vehicle-to-everything (V2X) terminal device, machine-to-machine / machine-type communications (M2M / MTC) terminal device, Internet of Things (IoT) terminal device, subscriber unit, subscriber station, mobile station, remote station, access point (AP), remote terminal, customer premises equipment (CPE), fixed wireless access (FWA), access terminal, user terminal, user agent, or user device, etc.For example, it may include mobile phones (or "cellular" phones), computers with mobile terminal devices, portable, pocket-sized, handheld, or computer-built mobile devices, etc. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. It also includes limited devices, such as devices with low power consumption, limited storage capacity, or limited computing power. For example, it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning systems (GPS), laser scanners, etc.

[0111] As an example and not a limitation, in the embodiment of the present application, the terminal may also be a wearable device. Wearable devices may also be referred to as wearable smart devices or smart wearable devices, etc., which are a general term for the application of wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, etc., as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets, smart helmets, smart jewelry, etc. for vital sign monitoring.

[0112] The various terminals introduced above, if located on a vehicle (eg, placed in or installed in a vehicle), can be considered as vehicle-mounted terminal devices, which are also called on-board units (OBUs).

[0113] The above-mentioned terminal can establish a connection with the operator network through the interface provided by the operator network (such as N1, etc.), and use the data and / or voice services provided by the operator network. The terminal device can also access the DN through the operator network, use the operator services deployed on the DN, and / or services provided by a third party. Among them, the above-mentioned third party may be a service provider other than the operator network and the terminal device, and can provide other data and / or voice services to the terminal device. Among them, the specific form of the above-mentioned third party can be determined according to the actual application scenario and is not limited here.

[0114] 2) The core network involved in the embodiments of the present application may include network equipment that processes and forwards user signaling and data. For example, it includes AMF, session management function (SMF), user plane gateway, positioning management equipment and other core network equipment. Among them, the user plane gateway can be a server with functions such as mobility management, routing, and forwarding of user plane data, generally located on the network side, such as a serving gateway (SGW) or a packet data network gateway (PGW) or a user plane function entity (UPF). AMF and SMF are equivalent to the mobility management entity (MME) in the LTE system. AMF is mainly responsible for access, and SMF is mainly responsible for session management. Of course, the core network can also include other network elements, which are not listed here one by one.

[0115] The location management device has a positioning function. The location management device involved in the embodiments of the present application may include a location management function (LMF) or a location management component (LMC), or may be a local location management function (LLMF) located in a network device, which is not limited in the embodiments of the present application. For ease of description, the following embodiments are all introduced using the LMF as an example.

[0116] 3) The network devices involved in the embodiments of the present application include, for example, access network (AN) devices. The NG-RAN involved in the embodiments of the present application may include one or more access network devices. The access network device in the NG-RAN may also be called a base station, or a RAN node, or a RAN device; a network device in a V2X technology is a road side unit (RSU), which may be a fixed infrastructure entity that supports V2X applications and can exchange messages with other entities that support V2X applications. A network device is an entity on the network side for transmitting and / or receiving signals, which can be used to convert received air frames into and from internet protocol (IP) packets, and act as a router between the terminal and the rest of the access network, where the rest of the access network may include an IP network, etc. The network device may also coordinate the attribute management of the air interface. For example, the network device may be an evolved Node B (eNB or e-NodeB) in LTE. An eNB is a device deployed in a wireless access network that meets the 4G standard and provides wireless communication functions for the terminal. The access network device may also be a new radio (NR) controller, a gNode B (gNB) in a 5G system, a centralized unit, a new wireless base station, a radio frequency remote module, a micro base station (also known as a small station), a relay, a distributed unit, various forms of macro base stations, a transmission reception point (TRP), a transmission measurement function (TMF) or a transmission point (TP) or any other wireless access device, or a base station in next-generation communications, but the embodiments of the present application are not limited thereto. The network device may also include a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a base band unit (BBU), or wireless fidelity (Wifi), an access point AP, etc.

[0117] In some deployments, a base station (such as a gNB) can consist of a centralized unit (CU) and a distributed unit (DU). This means that the base station functions in the original LTE access network are split, with some base station functions deployed in a CU and the remaining functions deployed in the DU. Multiple DUs share a single CU, saving costs and facilitating network expansion. The CU and DU can be divided according to the protocol stack, with the RRC layer, service data adaptation protocol (SDAP) layer, and PDCP layer deployed in the CU, and the remaining radio link control (RLC) layer, media access control (MAC) layer, and physical layer deployed in the DU. The CU and DU can be connected via the F1 interface. The CU represents the gNB's connection to the core network via the NG interface, and the CU represents the gNB's connection to other gNBs via the Xn interface.

[0118] Furthermore, the CU can be further divided into the CU-control plane (CP) and the CU-user plane (UP). The CU-CP is responsible for control plane functions, primarily including RRC and the control plane counterpart, PDCP (PDCP-C). PDCP-C is responsible for control plane data encryption, integrity protection, and data transmission. The CU-UP is responsible for user plane functions, primarily including SDAP and the user plane counterpart, PDCP (PDCP-U). SDAP is responsible for processing core network data and mapping flows to bearers. PDCP-U is responsible for data plane encryption, integrity protection, header compression, sequence number maintenance, and data transmission. The CU-CP and CU-UP are connected via the E1 interface. The CU-CP represents the gNB's connection to the core network via the NG interface. The control plane connects to the DU via the F1 interface, namely F1-C. The CU-UP connects to the DU via the F1 interface, namely F1-U. Alternatively, the PDCP-C may also reside in the CU-UP.

[0119] 4) User-Centric Positioning Area (UCPA), which includes the cell where the user is currently located and one or more cells adjacent to the cell.

[0120] 5) In the embodiments of this application, the terms "system" and "network" are used interchangeably. The term "plurality" refers to two or more. The term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects are in an "or" relationship.

[0121] "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a, b, and c, where a, b, and c can be single or plural.

[0122] Furthermore, unless otherwise indicated, ordinal numbers such as "first" and "second" in the embodiments of this application are used to distinguish between multiple objects and are not used to define the order, timing, priority, or importance of multiple objects. For example, the first message and the second message are only used to distinguish different messages and do not indicate a difference in priority, sending order, or importance between the two messages.

[0123] Figure 1 is a schematic diagram of the positioning architecture in LTE and NR Rel-16. As shown in Figure 1, the network elements / modules involved mainly include the next generation radio access network (NG RAN), terminals, and core network.

[0124] Among them, the core network includes LMF, access and mobility management function (AMF), service location protocol (SLP) and evolved serving mobile location centre (E-SMLC). The positioning server, namely LMF, is connected to AMF, and LMF and AMF are connected through the NLs interface. LMF is responsible for supporting different types of location services for the terminal, including positioning the terminal and delivering auxiliary data to the terminal. AMF can receive location service requests related to the terminal from the 5th generation core network location services (5GC LCS) entity, or AMF itself can also start some location services on behalf of a specific terminal and forward the location service request to LMF. After obtaining the location information returned by the terminal, the relevant location information is returned to the 5GC LCS entity.

[0125] The NG RAN may include the next generation node B (gNB) and the next generation evolved node B (ng-eNB). The gNB and ng-eNB are connected via the Xn interface, and the LMF is connected to the ng-eNB / gNB via the NG-C interface.

[0126] One or more network devices on the NG RAN side configure resources for the terminal to send reference signals, measure uplink signals such as reference signals from the terminal, and feed back the measurement results to the LMF to support positioning. It should be understood that this reference signal is used for positioning and can also be called a positioning reference signal. This article mainly focuses on uplink positioning, so the positioning reference signal can be SRS, preamble, etc. This article takes the positioning reference signal as SRS as an example. Generally speaking, SRS resources are configured at the cell level, that is, SRS resources are configured for each cell separately. As the terminal moves, it may move from one cell (current cell) to another cell (for example, called the target cell), so the terminal will perform cell handover. During the cell handover process, the SRS resources configured by the serving base station for the current cell will be released. When the terminal re-establishes the RRC connection with the target cell, the terminal obtains the SRS resources configured for the target cell and sends the SRS on this SRS resource.

[0127] Due to the mobility of the terminal, the terminal needs to obtain SRS resource configuration more frequently during the positioning process, which increases the power consumption of the terminal and consumes more power, which is contrary to the low power consumption requirement of the terminal.

[0128] In view of this, the solution provided in the embodiment of the present application can configure the same SRS resources for multiple cells within a certain area. If a terminal is located in the area, the terminal does not need to re-acquire the SRS resource configuration, thereby minimizing the number of times the terminal acquires the SRS resource configuration, thereby saving power consumption of the terminal.

[0129] The positioning method provided in the embodiment of the present application can be applied to various communication systems, for example: long term evolution (LTE) system, fifth generation (5G) system, such as NR, and next generation communication system, such as 6G system. Of course, the technical solution of the embodiment of the present application can also be applied to other communication systems, as long as the communication system has a positioning demand for the terminal. In addition, the communication system can also be applied to future-oriented communication technologies. The system described in the embodiment of the present application is to more clearly illustrate the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided in the embodiment of the present application. It is known to those skilled in the art that with the evolution of network architecture, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0130] Figure 2 shows the network architecture of a communication system applicable to an embodiment of the present application, which includes a core network, NG-RAN, and a terminal. The core network includes network elements / modules such as LMF, AMF, secure user plane location (SUPL) location platform (SLP), and enhanced serving mobile location center (E-SMLC). The NG RAN includes network elements / modules such as gNB and ng-eNB. The specific functions of network elements / modules such as LMF, AMF, SLP, E-SMLC, gNB, and ng-eNB, and the connection relationship between each network element / module can be found in the introduction to the relevant part of Figure 1 above, which will not be repeated here.

[0131] Unlike Figure 1, the network architecture shown in Figure 2 adds a LMC to the NG-RAN. LMC is deployed within the base station, such as in the gNB or ng-ENB. In this network architecture, LMC is a function within the base station, eliminating the need for new interfaces.

[0132] Figure 3 illustrates the network architecture of another communication system applicable to embodiments of the present application. As shown in Figure 3 , the communication system also includes a core network, NG-RAN, and terminals. Unlike Figure 2 , the LMC in the network architecture shown in Figure 3 operates as an independent logical node in the NG-RAN and is connected to the base station via a new interface. For example, in Figure 3 , the LMC is connected to the gNB-CU via the Itf interface.

[0133] Figure 4 shows the network architecture of another communication system applicable to embodiments of the present application. As shown in Figure 4, the communication system also includes a core network, NG-RAN, and terminals. The LMC is an independent logical node in the NG-RAN. Unlike Figure 3, the LMC can be connected to multiple base stations simultaneously via a new interface as shown in Figure 4. Figure 4 takes the LMC being connected to two base stations at the same time as an example. In actual implementation, the LMC can also be connected to more base stations.

[0134] It should be understood that Figures 1, 2, 3, and 4 above are merely exemplary illustrations of communication systems applicable to embodiments of the present application, and do not specifically limit the type, quantity, connection method, etc. of network elements included in the communication systems applicable to the present application. Furthermore, the network elements / modules indicated by dashed lines in Figures 2-4 are not essential but optional, for example, the E-SMLC or SLP are not essential; alternatively, the network elements / modules indicated by dashed lines represent another form of existence, for example, a gNB or ng-eNB is also referred to as a TRP in some embodiments, and a terminal is referred to as a SET in some embodiments.

[0135] It should be understood that positioning methods include the aforementioned OTDOA positioning method, DL-AOA positioning method, DL-AOD positioning method, UL-AOA positioning method, Multi-RTT positioning method, etc. In general, they can be summarized as uplink positioning method, downlink positioning method, and uplink and downlink positioning method. It should be noted that uplink and downlink are relative terms. If the transmission direction from the base station to the terminal is downlink (this article takes this as an example), then the transmission direction from the terminal to the base station is uplink; conversely, if the transmission direction from the base station to the terminal is uplink, then the transmission direction from the terminal to the base station is downlink.

[0136] The positioning method provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0137] Please refer to Figure 5 for a flowchart of the uplink positioning method provided in an embodiment of the present application. In the following description, the method is applied to the communication system shown in Figures 2-4 as an example. In addition, the method can be performed by three communication devices, such as a first communication device, a second communication device, and a third communication device. For ease of description, the following example uses the method performed by a network device, a terminal, and a positioning management device. That is, the first communication device is a network device, the second communication device is a terminal, and the third communication device is a positioning management device. It should be noted that the embodiments of the present application only use the communication system of Figures 2-4 as an example and are not limited to this scenario. It should be understood that the current terminal currently accesses one network device (this network device can be called a serving base station). For ease of description, this network device will be referred to as a serving base station in the following. In the following example, the positioning management device is an LMF network element. It should be understood that in future communications such as 6G, the positioning management device can still be an LMF network element or have other names, and the embodiments of the present application are not limited to this.

[0138] Specifically, the specific process of the uplink positioning method provided in the embodiment of the present application is described as follows:

[0139] S501. A network device sends a first message to a terminal. Correspondingly, the terminal receives the first message. The first message may include one or more resource configuration information. Each resource configuration information is used to configure a reference signal resource. The reference signal resource is used by the terminal to send a reference signal. The reference signal is used to determine the location of the terminal.

[0140] S502: The network device sends first indication information to the terminal. Correspondingly, the terminal receives the first indication information, where the first indication information is used to indicate one or more positioning areas.

[0141] In an embodiment of the present application, a network device may be a network device currently serving a terminal. The network device may be a device in an NG RAN, such as a gNB or ng-eNB; or, the network device may be an LMC. As previously described, if the LMC is a function within a network device, then the network device is the network device where the LMC is located. If the LMC deployment scheme is as shown in Figure 3 or Figure 4, that is, the LMC is an independent logical node connected to one or more network devices through an interface, then the network device is any network device connected to the LMC.

[0142] In the existing uplink positioning process, the network device configures resources for sending SRS (also called SRS resources) for the terminal, and the network device informs the terminal of the SRS resources. The terminal can send SRS on the SRS resource for subsequent positioning. However, the SRS resources are currently configured at the cell level, that is, SRS resources are configured for each cell separately. As the terminal moves, it may move from one cell (current cell) to another cell (for example, called the target cell), so the terminal will perform cell switching. During the cell switching process, the SRS resources configured by the serving base station for the current cell will be released. After the terminal re-establishes the RRC connection with the target cell, the terminal obtains the SRS resources configured for the target cell to send SRS on the SRS resource. Due to the mobility of the terminal, the terminal needs to obtain the SRS resource configuration more frequently during the positioning process, which increases the power consumption of the terminal and consumes more power.

[0143] To this end, the embodiment of the present application can regard the cell where the terminal is located and multiple adjacent cells as a virtual cell, and one virtual cell corresponds to one SRS resource. In this way, when the terminal moves within a virtual cell, the terminal can use the acquired SRS resources to send SRS, that is, when the terminal switches across cells, it does not need to reacquire SRS resources; when the terminal switches from one virtual cell to another virtual cell, it reacquires SRS resources, thereby reducing the steps of SRS resources and reducing the power consumption of the terminal. Since the virtual cell is used as a positioning reference area in this article, it is referred to as a positioning area in this article. That is, the embodiment of the present application can regard multiple cells as one positioning area.

[0144] In an embodiment of the present application, the first indication information may directly or indirectly indicate one or more positioning areas, that is, the network device may configure one or more positioning areas for the terminal. The first message may include one or more resource configuration information, and each resource configuration information is used to configure SRS resources. Among them, each positioning area corresponds to a resource configuration information, that is, each positioning area corresponds to an SRS resource. When the terminal switches from one cell to another, it can send SRS based on the first indication information and the first message. For example, when the terminal switches from the first cell to the second cell, it can be determined whether the terminal switches from one positioning area to another, and thus the SRS is sent according to the SRS resource corresponding to the positioning area where the terminal is currently located.

[0145] It should be understood that each location area includes multiple cells. In some embodiments, the first indication information may indicate the multiple cells included in each of one or more location areas, that is, multiple location areas are indicated by indicating the multiple cells included in each location area. For example, the first indication information may carry one or more cell index lists, wherein each cell index list corresponds to a location area, and each cell index included in each cell index list corresponds to a cell. Exemplarily, each cell index may be a physical cell identification code (PCI) or a cell global identifier (CGI). If the cell index is a PCI, when a terminal switches from one cell (e.g., the first cell) to another cell (e.g., the second cell), it can obtain the PCI of the second cell. For example, by detecting the SSB of the second cell, identifying the PCI of the second cell, and determining which cell index list the PCI is in, it can directly determine which location area the terminal is currently located in. In addition, the first indication information also includes one or more absolute radio frequency channel numbers (ARFCNs). Each cell index in each cell index list has a corresponding ARFCN, which is used to indicate the frequency of the cell. A cell index list may contain one or more ARFCNs. One ARFCN may correspond to one or more cell indexes. Alternatively, a cell index list may contain one or more cell indexes, with one cell index corresponding to one ARFCN.

[0146] Considering that different cells may correspond to the same PCI, in order to more accurately determine the second cell in which the terminal is currently located, embodiments of the present application may configure the cell index as the CGI. In this case, when the terminal switches to the second cell, it can read the SIB of the second cell, identify the CGI of the second cell, determine which cell index list the CGI is in, and thus directly determine which location area the terminal is currently located in.

[0147] In other embodiments, the first indication information indicates one or more positioning areas, for example, the first indication information may carry the index of one or more positioning areas, which is relatively direct. The index may be, for example, an identification (ID). In this case, the correspondence between the positioning area and multiple cells may be predefined, for example, the correspondence between the positioning area index and the cell index list may be predefined. For the terminal, when the terminal switches from the first cell to the second cell and obtains the index of the second cell, such as PCI or CGI, it may determine in which cell index list the terminal is located, and thus determine in which positioning area the terminal is located based on the correspondence between the cell index list and the positioning area index. In this embodiment, since the first indication information carries one or more positioning area indexes, that is, the amount of information carried is small, signaling overhead can be saved.

[0148] It should be understood that if the positioning accuracy requirement is low, then each positioning area includes fewer cells; if the positioning accuracy requirement is high, then each positioning area includes more cells. In one possible scenario, for example, for a certain park, in the correspondence between the initially defined positioning area index and the cell index list, each positioning area corresponds to fewer cells, so as to be suitable for scenarios with lower positioning accuracy requirements, such as the positioning of users within the park. However, there may be scenarios within the park that require higher positioning accuracy, such as scenarios for industrial operations, where it is necessary to accurately locate the position of the robot to determine whether the robot has accurately reached the operating table. In this case, the correspondence between the initially defined positioning area index and the cell index list can be updated to achieve precise positioning. That is, in other embodiments, the first indication information may include one or more positioning area indexes, and a cell index list corresponding to each positioning area in the one or more positioning areas. In this embodiment, the correspondence between each positioning area and the cell index list may not be unique, and the correspondence between each positioning area and the cell index list may be determined based on the actual needs of positioning, which is more flexible.

[0149] In some embodiments, different cell index lists include different cell indexes, that is, different positioning areas include different cells. In other embodiments, different cell index lists include the same cell index portion, that is, different positioning areas may include the same cells, to ensure that the terminal can maximize energy saving or improve the positioning accuracy of the terminal. It should be understood that when the terminal is in the center of the network device coverage area, the positioning is more accurate than when the terminal is at the edge of the network device coverage area. For example, when the terminal is at the edge of the network device coverage area or the terminal is at the periphery of the network device coverage area, the positioning accuracy is poor. If the terminal moves to the edge of a positioning area, but the resident network device of the terminal happens to be located in another positioning area, the terminal sends an SRS on the SRS resource corresponding to the other positioning area to ensure the positioning accuracy of the terminal. It should be understood that the movement area of ​​the terminal may change over time, and the movement area of ​​the current period (detected as the first area) and the movement area of ​​the next period (referred to as the second area) may partially overlap. Assuming that the first area corresponds to one positioning area and the second area corresponds to another positioning area, when the terminal moves to the second area and the terminal happens to be in an area within the second area that overlaps with the first area, if the terminal switches to the SRS resources of the positioning area corresponding to the second area, then unnecessary SRS resource switching and reporting can be avoided to ensure the continuity of positioning services.

[0150] It should be understood that the network device can configure SRS resources for the terminal. In an embodiment of the present application, the network device can configure an SRS resource for a positioning area. In some embodiments, the first message may include a resource configuration information for configuring an SRS resource. The first indication information may also include the SRS resource information, such as the SRS resource index. In this case, the terminal sends SRS on the SRS resource. When the terminal switches from one positioning area to another, the terminal needs to re-acquire the SRS resource of the new cell to which the terminal switches and sends SRS on the SRS resource, that is, the terminal performs the necessary steps to obtain the SRS resource of the new cell, such as steps that require interaction with the network device. The terminal then sends SRS on the newly acquired SRS resource. Of course, if the network device configures an SRS resource for the terminal, the first indication information may not carry the SRS resource index, because the terminal can know the SRS resource based on the first message.

[0151] In other embodiments, the first message may include multiple resource configuration information for configuring SRS resources corresponding to multiple positioning areas. Exemplarily, the first indication information may also include information on multiple SRS resources, such as multiple SRS resource indexes. It should be understood that one SRS resource index corresponds to one positioning area or one cell index list. When a terminal switches from one positioning area to another, it can directly send SRS on the SRS resource corresponding to the other positioning area. That is, there is no need to reacquire the SRS resources of the new cell to which the terminal switches, that is, there is no need to perform some steps to acquire the SRS resources of the new cell, thereby simplifying the process. In this case, the terminal determines another positioning area (cell index list) and the corresponding SRS resource replacement, and can send the index of the positioning area (cell index list) and the corresponding SRS resource index to the LMF, so that the LMF can know in time that the terminal has switched the SRS resource, and can update the SRS resource after the terminal switches to the network device, avoiding unnecessary SRS resource switching and reporting to ensure the continuity of the positioning service.

[0152] The sending of the SRS by the terminal according to the first indication information and the first message will be described later in this article.

[0153] It should be noted that the embodiment of the present application does not limit the execution order of S501 and S502. S501 can be executed first and then S502, or S502 can be executed first and then S501, or S501 and S502 can be executed at the same time.

[0154] The first indication information can be implemented in a variety of ways. As one way to implement the first indication information, the first indication information can be carried in the SIB. The network device sends the SIB in a broadcast manner, and the terminal can periodically read the SIB to obtain the first indication information. It should be understood that this implementation method is compatible with the process of sending SIBs by existing network devices and does not require the establishment of an additional session. And the terminal in the RRC_Inactive state can receive the SIB, that is, the terminal in the RRC_Inactive state can also obtain the first indication information. Of course, the first indication information can be carried in an existing field of the SIB or a newly defined field, and this embodiment of the present application does not limit this.

[0155] As another implementation method of the first indication information, the first indication information can be carried in the pos SIB. Similarly, the network device sends the pos SIB in a broadcast manner, and the terminal can periodically read the pos SIB to obtain the first indication information. It should be understood that this method is compatible with the process of sending pos by existing network devices and does not require the establishment of a separate session. Moreover, a terminal in the RRC_Inactive state can also receive the pos SIB, that is, a terminal in the RRC_Inactive state can also obtain the first indication information. Of course, the first indication information can be carried in an existing field of the pos SIB or a newly defined field, and this embodiment of the present application does not limit this.

[0156] As another implementation of the first indication information, the first indication information can be carried in an RRC message. In this manner, when a terminal requires positioning, it can request the network device to configure one or more positioning areas for the terminal. The network device can then configure the positioning areas for the terminal based on the terminal's request. This RRC message can also be considered a response message sent in response to the terminal's request. For the terminal, receiving this response message eliminates the need to periodically read information such as the SIB, thereby saving energy consumption.

[0157] It should be noted that S502 uses the example of a network device sending the first indication information to a terminal. In a possible implementation, the first indication information may also be sent to the terminal by the LMF. That is, the LMF may execute S502a in Figure 5. If the first indication information is sent to the terminal by the LMF, the first indication information may be carried in LPP signaling.

[0158] Similarly, the first message may be carried in SIB, pos SIB, RRC message or LPP signaling, which is not limited in this embodiment of the present application.

[0159] As previously mentioned, the network device broadcasts the first indication information to the terminal. For each terminal, the network device configures the same location area for each terminal. However, considering practical needs, such as different requirements for terminal positioning accuracy and energy consumption, the network device may configure a unique location area for each terminal. For example, in the case of a first terminal and a second terminal, the network device may configure one or more location areas for the first terminal, but these one or more location areas belong to the first terminal and not to the second terminal.

[0160] It should be understood that if there are multiple terminals and none of them have special requirements, the network device can configure the same location area for all of them. If one of these terminals has special requirements, the network device can configure a dedicated location area for that terminal and the same location area for the other terminals. Before the network device configures a dedicated location area for a terminal, the terminal can provide the network device with some information about the terminal for reference when configuring the location area for the terminal.

[0161] S503: The terminal sends a second message to the network device. Correspondingly, the network device receives the second message.

[0162] The second message may include one or more characteristic information of the terminal. For example, the second message may include one or more of the terminal's positioning accuracy requirement, the terminal's battery capacity information, and the terminal's energy saving requirement information, or other possible information. This is not limited by the embodiments of the present application. In some embodiments, the terminal's positioning accuracy requirement may be represented by an accuracy level, such as meter level, decimeter level, or centimeter level. The terminal's battery capacity information may be represented by a battery capacity percentage, such as 60%. If the battery capacity percentage of the terminal is low, then the remaining battery power is low. The terminal's energy saving requirement information can be quantified and represented by a numerical value. For example, expressed as a percentage, 100% indicates the highest energy saving requirement, 0% indicates the lowest energy saving requirement, and vice versa. For another example, expressed as a numerical value, 1 indicates the highest energy saving requirement, 0 indicates the lowest energy saving requirement, and vice versa. Of course, this is merely an example, and the embodiments of the present application do not limit the specific method of presenting the terminal's energy saving requirement.

[0163] In some embodiments, the second message may be an RRC message, that is, the terminal informs the network device of the terminal's positioning accuracy requirements, the terminal's battery capacity information, and the terminal's energy-saving requirement information through RRC signaling.

[0164] S504: The network device sends second indication information to the terminal, and correspondingly, the terminal receives the second indication information.

[0165] The network device receives the second message from the terminal and can determine the second indication information based on the second message sent by the terminal, that is, configure the terminal with an exclusive positioning area based on the second message. Similar to the second message, the second indication information can be carried in an RRC message, or can also be called an RRC message. Among them, the second message can also be regarded as a message requesting a positioning area from the network device, which can be called a positioning area request message. Correspondingly, the second indication information can be regarded as a response message to the second message, that is, a positioning area response message. Of course, when the second message is a positioning area request message, the network device can also send a failure response message of the positioning area request message to the terminal, that is, indicate that the network device has not configured an exclusive positioning area for the terminal.

[0166] Similar to the first indication information, the second indication information can be used to indicate one or more positioning areas. For example, the second indication information may include one or more positioning area indexes. Alternatively, the second indication information can be used to indicate multiple cells included in each positioning area. For example, the second indication information may include one or more cell index lists. Alternatively, the second indication information may include one or more positioning area indexes and cell index lists corresponding to each positioning area. The specific implementation of the second indication information is similar to the first indication information. For details, please refer to the specific implementation of the first indication information, and will not be repeated here.

[0167] The difference from the first indication information is that, because the second indication information configures a dedicated positioning area for the terminal, it can be considered that the second indication information has a higher priority than the first indication information. For a terminal, if the terminal receives the first indication information and the second indication information, the terminal may consider the second indication information to be valid and the first indication information to be invalid, that is, ignore the first indication information and send an SRS in the positioning area indicated by the second indication information according to the resource configuration information corresponding to the positioning area.

[0168] It should be noted that the system may default to giving the second indication information a higher priority than the first indication information. However, in some scenarios, even though the terminal receives both the first and second indication information from the network device, it may ignore the second indication information and send the SRS based on the first indication information. For example, the network device may additionally notify the terminal that the second indication information is invalid.

[0169] S503 takes the example of a terminal sending a second message to a network device, where the network device configures a dedicated location area for the terminal using second indication information. In some embodiments, the LMF may also configure a dedicated location area for the terminal. In this case, the terminal may send the second message to the LMF, i.e., the terminal executes S503a in Figure 5. It should be understood that the second message may be an LPP message. The LMF may execute S504a, i.e., the LMF may send the second indication information to the terminal, which may be carried in the LPP message.

[0170] It should be noted that S503, S504, S503a, and S504a are not necessarily executed steps and are therefore indicated by dashed lines in FIG5 . S503 may be executed before S501 or S502, and this embodiment of the present application does not limit this. In a possible implementation, if S503 is executed before S502, the network device may also determine the first indication information based on the second message. Of course, S504 may be executed before S501 or S502. Similarly, S503a and S504a may be executed before S502a or after S502a.

[0171] S505: The terminal sends an SRS in the positioning area indicated by the first indication information or the second indication information according to the SRS resources corresponding to the positioning area.

[0172] If the terminal receives the first indication information, it can send an SRS according to the first indication information and the first message. If the terminal receives the first indication information and the second indication information, it can send an SRS according to the second indication information and the first message. The following describes how the terminal sends an SRS according to the first indication information or the second indication information.

[0173] The terminal reads the first message and can determine one or more SRS resources configured for it by the network device. The terminal periodically reads the SIB or Pos SIB, obtains the first indication information therefrom, and can determine one or more positioning areas configured for it by the network device. Furthermore, the terminal can determine the SRS resources configured by the network device for each positioning area according to the first indication information, thereby sending SRS on the SRS resources. It should be understood that due to the mobility of the terminal, the terminal will move from one cell to another, which may cause the terminal to move from one positioning area to another. In an embodiment of the present application, the terminal moves from one positioning area to another, and the terminal re-determines the SRS resources corresponding to the other positioning area and sends SRS on the SRS resources. Compared with the terminal moving from one cell to another, which requires re-acquiring the SRS resources of the other cell, the positioning process can be simplified and the energy consumption of the terminal can be reduced.

[0174] Exemplarily, the first indication information is used to indicate one or more location areas, for example, the first indication information includes one or more location area indexes. Upon receiving the first indication information, the terminal may determine, for example, one or more location areas configured for it by the network device. If the terminal is currently located in the first location area, after switching from the current cell, for example, the first cell, to a second cell, the terminal may detect the SSB of the second cell, identify the PCI of the second cell, and determine whether the second cell is located in the first location area based on the PCI of the second cell. If the PCI of the second cell is included in the cell index list corresponding to the first location area, then the second cell is located in the first location area. The terminal may then continue to use the acquired SRS resources, i.e., the SRS resources corresponding to the first location area, to send an SRS. If the PCI of the second cell is not included in the cell index list corresponding to the first location area, i.e., the second cell is not located in the first location area, for example, if the second cell is located in the second location area, the terminal may release the currently acquired SRS resources and acquire second resource configuration information corresponding to the second location area. Specifically, the terminal may acquire new SRS resources in the second cell as the SRS resources corresponding to the second location area and send an SRS on these SRS resources.

[0175] As an alternative implementation method, when the terminal switches from the first cell to the second cell, the terminal can read the SIB of the second cell and identify the CGI of the second cell. If the CGI of the second cell is located in the cell index list corresponding to the first positioning area, then the second cell is located in the first positioning area, and the terminal continues to use the acquired SRS resources to send the SRS, that is, there is no need to re-acquire the SRS resources of the second cell, thereby simplifying the positioning process and reducing the energy consumption of the terminal. If the CGI of the second cell is located in the cell index list corresponding to the second positioning area, that is, the second cell is located in the second positioning area, then the terminal can release the currently acquired SRS resources and acquire new SRS resources in the second cell as the SRS resources corresponding to the second positioning area, and send the SRS on the SRS resources.

[0176] It should be understood that the above takes the example of the first indication information including one or more positioning area indexes. If the first indication information includes one or more cell index lists. Then the terminal moves from the first cell to the second cell, obtains the cell index of the second cell, such as PCI or CGI, and can determine whether the cell index of the second cell is located in the first cell index list including the cell index of the first cell. If the cell index of the second cell is located in the first cell index list, the terminal sends the SRS according to the first resource configuration information corresponding to the first cell index list, that is, the terminal continues to use the acquired SRS resource to send the SRS. If the cell index of the second cell is located in the second cell index list, the terminal releases the currently acquired SRS resource, obtains the second resource configuration information corresponding to the second cell index list, and sends the SRS according to the second resource configuration information. That is, the terminal obtains a new SRS resource in the second cell as the SRS resource corresponding to the second positioning area, and sends the SRS on the SRS resource.

[0177] It should be noted that if the first indication information also includes multiple SRS resource configuration information, that is, the network device configures corresponding SRS resources for each positioning area, then the terminal determines that the second cell is located in the second positioning area, and the terminal can send SRS on the SRS resources corresponding to the second positioning area, that is, the terminal does not need to re-acquire SRS resources in the second cell, which can further simplify the positioning process and reduce the energy consumption of the terminal.

[0178] For example, when a terminal switches from a first cell to a second cell, and the terminal determines that the cell index of the second cell is, for example, located in a third cell index list, the terminal may determine an SRS resource index corresponding to the third cell index list and transmit an SRS on the SRS resource corresponding to the SRS resource index. Similarly, if the terminal determines that the second cell is located in, for example, a third positioning area, the terminal may determine an SRS resource index corresponding to the third positioning area and transmit an SRS on the SRS resource corresponding to the SRS resource index.

[0179] It should be understood that if the terminal also receives the second indication information, then the terminal sends the SRS in the location area indicated by the second indication information according to the resource configuration information corresponding to the location area. The process of the terminal sending the SRS according to the second indication information is the same as the process of the terminal sending the SRS according to the first indication information. For details, please refer to the aforementioned process of the terminal sending the SRS according to the first indication information, which will not be repeated here.

[0180] Furthermore, when the terminal switches from one positioning area (e.g., the first positioning area) to another positioning area (e.g., the second positioning area), it may send a second positioning area index and / or an SRS resource index corresponding to the second positioning area to the LMF or the network device. In this way, the LMF or the network device can know in time that the terminal has switched the SRS resources, thereby updating the SRS resources in time, avoiding unnecessary SRS resource switching and reporting, and ensuring the continuity of the positioning service. In addition, for a terminal in the RRC inactive state, the terminal can inform the resident network device of the updated second positioning area and the corresponding SRS resources of the terminal through RRC signaling, which helps the LMF or the network device know that the SRS resources of the first positioning area have been released, and can allocate the SRS resources of the first positioning area to other terminals, thereby improving resource utilization.

[0181] The terminal notifies the network device or LMF of the updated positioning area and corresponding SRS resources of the terminal. The network device or LMF updates the positioning area and corresponding SRS resources of the terminal, which may specifically include the following steps:

[0182] 1) The terminal may send location area update information to the network device or LMF via an RRC resume request message, an RRC reconfiguration message, or an RRC message. The location area update information may be used to indicate the updated location area of ​​the terminal and the corresponding SRS resources. Assume that the updated location area of ​​the terminal is the second location area, corresponding to the second cell index list. The location area update information may include one or more of the following information: a second location area index, a second cell index list, and an SRS resource index corresponding to the second location area (or the second cell index list).

[0183] 2) The network device may request the context data of the terminal from the network device that last served the terminal (referred to as the last network device for short).

[0184] 3) The last serving gNB feeds back the terminal’s context data to the network device.

[0185] 4) The network device requests the AMF to switch the service channel.

[0186] 5)AMF responds to the network device with a service channel switch request.

[0187] 6) The network device triggers the last network device to release the context of the terminal.

[0188] 7) The network device sends the terminal's location area update information to the LMF.

[0189] It should be understood that the positioning area update information needs to indicate which terminal the positioning area update information belongs to. Therefore, in addition to including the second positioning area index, the second cell index list, and one or more of the SRS resource indexes corresponding to the second positioning area (or the second cell index list) in the above step 1), the positioning area update information also includes information for indicating the terminal and / or the current measurement task, so that the LMF knows whether the current measurement task sends changes. For example, the positioning area update information may also include the terminal identifier (index) and / or the measurement identifier (index) for indicating the measurement task, wherein the measurement identifier may also be an NRPPa message index.

[0190] After receiving the location area update message, the LMF may determine that the SRS resources of the first location area previously allocated to the terminal are released, and may instruct the network device to allocate the SRS resources to other terminals, thereby improving resource utilization.

[0191] Please refer to Figure 6, which is an exemplary flow chart of the uplink positioning method provided in an embodiment of the present application. Figure 6 takes TDOA positioning as an example. The positioning process is described as follows:

[0192] S601: The terminal exchanges positioning assistance information with the LMF.

[0193] The exchange of positioning assistance information between the LMF and the terminal is similar to the process in which the terminal and the LMF exchange information through LPP information in the OTDOA positioning process, that is, the terminal requests positioning assistance information from the LMF, and the LMF provides assistance data (provide assistance data) to the terminal through LPP, etc., which will not be repeated here. The positioning assistance information may include the cell index that the terminal needs to measure, such as the cell index of the neighboring cell and / or the cell index of the reference cell, and may also include the SRS configuration, etc.

[0194] The process of exchanging positioning assistance information between the terminal and the LMF may also include the LMF obtaining the positioning capability of the terminal. For example, the LMF requests positioning capability from the terminal, the LMF requests the terminal's positioning capability through the LPP request capability process, and the terminal reports the positioning capability information to the LMF through the LPP provide capability. The positioning capability information may include the positioning methods supported by the terminal, the measurement capabilities corresponding to the positioning methods supported by the terminal, etc.; or the positioning capability information may also include one or more information included in the aforementioned second message. That is, the aforementioned second message may be a response message to the positioning capability request message sent by the LMF to the terminal.

[0195] S602. The LMF sends a first request message to a network device, where the first request message is used to request configuration of SRS resources for the terminal.

[0196] When the LMF needs to locate the terminal, the LMF can request the network device (serving base station) to configure SRS resources for the terminal. The SRS configuration of different cells may be different. In some embodiments, the LMF can inform the terminal of the SRS configuration of each cell.

[0197] S603: The network device configures SRS resources for the terminal.

[0198] After receiving the LMF request, the network device can determine the available SRS resources and configure them for the terminal. In this embodiment of the present application, the network device can configure an SRS resource for each of multiple positioning areas. Compared to configuring an SRS resource for each cell, this simplifies the positioning process and reduces the terminal's energy consumption.

[0199] It should be understood that the network device configures SRS resources for the terminal at the location area granularity. Therefore, after receiving the first request message, the network device can configure one or more location areas for the terminal and configure an SRS resource for each location area. The network device can then notify the terminal or LMF of the SRS resources configured for the terminal.

[0200] S604: The network device sends a first message to the terminal.

[0201] After configuring the SRS resource for the terminal, the network device may inform the terminal. For example, the network device may send a first message to the terminal, where the first message may include one or more resource configuration information, each of which is used to indicate an SRS resource.

[0202] In some embodiments, the network device may also send a first message to the LMF to inform the LMF of the SRS resources configured by the network device for the terminal.

[0203] S605: The network device sends first instruction information to the terminal.

[0204] After configuring SRS resources for a terminal, the network device may notify the terminal. For example, the network device may send first indication information to the terminal, where the first indication information may be used to indicate one or more location areas. In some embodiments, the network device notifies the LMF of the SRS resources configured for the terminal. The LMF may also send the first indication information to the terminal. This means that the LMF may configure one or more location areas for the terminal.

[0205] For a terminal, when it is in a resident cell, it can determine the SRS resources of the resident cell, i.e., the SRS resources of the location area where the terminal is currently located. When the terminal switches from the current location area to another location area, the terminal can obtain the SRS resources in the newly switched cell as the SRS resources of the other location area.

[0206] In some embodiments, the first indication information may further include one or more SRS resource indexes, where one SRS resource index corresponds to one location area and is used to indicate the SRS resources corresponding to the location area. In this case, when the terminal switches from one location area to another, it does not need to obtain SRS resources in the new cell.

[0207] It should be understood that the first indication information can be determined according to the characteristic information of the terminal, that is, according to the aforementioned second message. In this case, the terminal can send the second message to the network device.

[0208] Of course, the network device can also configure a dedicated positioning area for the terminal according to the second message, that is, the network device can also send second indication information to the terminal. The specific implementation of the first indication information and the second indication information can refer to the description of the above embodiment and will not be repeated here.

[0209] S606. The LMF sends a second request message to the network device, where the second request message is used to request the network device to trigger the terminal to send an SRS.

[0210] S607: The network device sends a third request message to the terminal, where the third request message is used to trigger the terminal to send an SRS.

[0211] After the LMF determines the SRS resources configured by the network device for the terminal, it can request the network device to trigger the terminal to send the SRS.

[0212] S608. The network device sends a response message to the second request message to the LMF.

[0213] S609: The network device sends SRS resource configuration information to each network device participating in positioning.

[0214] It should be understood that the SRS resource configuration information may also include all information for implementing uplink positioning measurement.

[0215] S610: Each network device measures the SRS sent by the terminal to obtain a measurement result.

[0216] S611. Each network device sends the obtained measurement result to the LMF so that the LMF can determine the location of the terminal.

[0217] It should be noted that Figure 6 takes uplink TDOA positioning as an example and does not show all the steps. For example, the step of the terminal reporting the second message to the network device, the step of the network device sending the second indication information to the terminal, etc. In the example of this application, multiple cells can be regarded as a positioning area, and an SRS resource is configured for one positioning area, that is, multiple cells correspond to one SRS resource. During the positioning process, the terminal needs to re-acquire the corresponding reference signal resources to send SRS when it moves from one positioning area to another. Compared with the solution in which one cell corresponds to one reference signal resource, that is, switching from one cell to another requires re-acquisition of SRS resources, this solution does not require the terminal to obtain SRS configuration information more frequently, thereby reducing the energy consumption of the terminal.

[0218] The solution provided by the embodiment of the present application is particularly suitable for terminals that are active in a fixed area for a long time. For this type of terminal, the energy consumption of the terminal can be greatly reduced. Among them, applicable scenarios may include industrial operation scenarios. For example, in a factory, it is necessary to obtain the current position of each device in the factory to better grasp the location information of each device. For example, at a dock, it is necessary to obtain the current position of each transportation equipment to better determine whether each transportation equipment has accurately arrived at the destination. Applicable scenarios may also include park scenarios. For example, if users in a park often move around in the park for a long time, the solution provided by the embodiment of the present application can be used to complete the positioning of users in the park. It should be noted that the several applicable scenarios listed here are only typical scenarios that may be applicable to the embodiment of the present application, and are not an exhaustive list of all possible scenarios. The solution provided by the embodiment of the present application can certainly be adapted to other scenarios.

[0219] In addition, based on the above solution, the applicant discovered a new problem: the terminal will perform RRM measurements on adjacent cells in an inactive state, and select cells with stronger RSRP according to certain rules to ensure the communication quality of the terminal. This process is called the cell reselection process. During the cell reselection process, after the terminal reselects to the target cell, the terminal re-establishes an RRC connection with the target cell, and the terminal obtains the SRS resources configured for the target cell to send SRS on the SRS resources. According to the usual cell reselection process, when the terminal moves to the edge of the positioning area, the terminal may reselect to a cell outside the positioning area. In some scenarios, if the terminal reselects to a cell outside the positioning area, the terminal also needs to re-acquire SRS resources, which is not conducive to reducing the energy consumption of the terminal. Or in other scenarios, the terminal may frequently reselect between cells within the positioning area and cells outside the positioning area, resulting in the terminal needing to obtain SRS configuration information more frequently, which is not conducive to reducing the energy consumption of the terminal.

[0220] In order to solve the above problem, the embodiment of the present application modifies the conventional cell reselection process so that a terminal that moves to the edge of the positioning area can reselect to a cell included in the positioning area after performing the cell reselection process. In order to better understand the solution provided by the embodiment of the present application, the conventional cell reselection process is introduced below:

[0221] Generally, the network frequency band ranges allocated to different operators are different. For example, the frequency band range obtained by operator A is frequency 1-frequency 2, and the frequency band range obtained by operator B is frequency 3-frequency 4. Different operators can allocate a frequency point to their own cells within their own frequency band ranges, so that the terminal equipment accessing the corresponding cell works at the corresponding frequency point. For example, operator A can set the frequency point of the first cell to frequency point A within the range of frequency point 1-frequency point 2, then the working frequency point of the terminal equipment accessing the first cell is frequency point A. For another example, operator B can set the frequency point of the second cell to frequency point B within the range of frequency point 3-frequency point 4, then the working frequency point of the terminal equipment accessing the second cell is frequency point B. Of course, there may be overlap between the network frequency band ranges of different operators, and the embodiments of the present application do not impose any restrictions on this.

[0222] In addition, different communication systems use different frequency bands. For example, the frequency band used by the 4G communication system (also known as the 4G network) is Band 1, and the frequency band used by the 5G communication system (also known as the 5G network) is Band 2. Band 2 is different from Band 1. Within Band 1, each operator has a corresponding frequency band; within Band 2, each operator also has a corresponding frequency band. Therefore, the terminal device can determine whether the corresponding cell is covered by the 4G network or the 5G network based on the frequency of each cell.

[0223] The terminal uses different methods to determine whether the adjacent cell meets the camping conditions for adjacent cells with different frequencies. The following are respectively explained:

[0224] 1. Cells with different frequencies and priorities and cells with different radio access technologies (RATs) 1. If a neighboring cell has a higher priority than the serving cell or the neighboring cell is a cell of different RATs and the following conditions are met, the cell with the higher priority is reselected.

[0225] Condition 1: During the Treselection duration, the high-priority neighboring cell satisfies Squal>ThreshX,HighQ, or Srxlev>ThreshX,HighP, where ThreshX-High is one residence threshold and ThreshX,HighP is another residence threshold.

[0226] Condition 2: The terminal has been camped in the new cell for more than 1 second.

[0227] 2. If the neighboring cell has a lower priority than the serving cell or the two are cells of different RATs, and any of the following conditions is met, reselect to the cell with a higher priority.

[0228] Condition 1: Within the Treselection duration, Squal <Thresh serving , LowQ, or Squal>ThreshX, LowQ. Thresh serving , LowQ is a signal threshold, ThreshX, LOWQ is another signal threshold.

[0229] Condition 2: Within the Treselection duration, Srxlev <Thresh serving , LowP, or Srxlev>ThreshX, LowQ. Thresh serving , LowP is a signal threshold, ThreshX, LOWp is another signal threshold, and the terminal has been camped in the new cell for more than 1 second.

[0230] It should be noted that due to the evolution of communication protocol versions, the method of reselecting to a cell with a higher priority may change for certain reasons, and the formula given here is only an example.

[0231] 2. Intra-frequency cells and cells with the same priority level on different frequencies

[0232] For candidate cells with the same frequency, as well as cells with different frequencies but the same priority, cell reselection can be performed based on the S and R criteria. Specifically, the terminal first preliminarily screens neighboring cells based on the S criterion. The S criterion can be understood with reference to the following formulas 1-1 and 1-2. During the preliminary screening based on the S criterion, neighboring cells with Srxlev greater than 0 and Squal greater than 0 are selected.

[0233] Srxlev=Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-P compensation -Qoffset temp (1-1)

[0234] Squal=Q qualmeas -(Q qualmin +Q qualminoffset )-Qoffset temp (1-2)

[0235] Among them, Srxlev represents the calculated cell selection reception level value. Qrxlevmeas represents the received signal strength value measured by the terminal device, which is the measured reference signal received power RSRP. Qrxlevmin represents the minimum received signal strength value required by the cell. QrxlevminOffset This parameter is only valid when the terminal device normally resides in a virtual private mobile network (VPMN) and periodically searches for a high-priority public land mobile network (PLMN) for cell selection evaluation. This parameter offsets Qrxlevmin. Pcompensation represents the larger value of (PEMAX–PUMAX) or 0, where PEMAX is the maximum allowed transmit power set by the system when the terminal device accesses the cell; PUMAX refers to the maximum output power specified according to the terminal device level. Qoffset temp Indicates the temporary offset of the cell. Squal indicates the cell selection quality value. Qqualmeas indicates the measured reference signal receiving quality (RSRQ). Qqualmin indicates the minimum quality level required by the cell, and Qqualminoffset indicates the offset of Qqualmin.

[0236] It should be noted that due to the evolution of communication protocol versions, the S criterion formula and the calculation formulas for Srxlev and Squal may change for certain reasons. The formulas given here are only examples.

[0237] Then, the adjacent cells that meet the S criterion are judged by the R criterion to obtain the final reselected cell. The R criterion can be understood by referring to the following formulas 1-3 and 1-4:

[0238] Rs=Qmeas,s+Qhyst-Qoffset temp (1-3)

[0239] Rn=Qmeas,n-Qoffset-Qoffset temp (1-4)

[0240] Where Rs is the ranking value of the serving cell, Rn is the R value of the neighboring cell of the serving cell, referred to as the R value; Qmeas,s is the received signal strength value (dBm) measured in the serving cell, that is, the RSRP measurement value during cell reselection; Qmeans,n is the received signal strength value (dBm) measured in the neighboring cell. Qoffset is the cell reselection offset. Qhyst is the hysteresis of the serving cell.

[0241] The terminal device sorts all cells that meet the S criteria by R value and reselects the cell with the largest R value (Rn). In addition, the cell with the largest R value must have a larger Rs value than the serving cell, or the terminal has been camped in the new cell for more than 1 second.

[0242] It should be noted that due to the evolution of communication protocol versions, the R criterion formula and the calculation formulas of Rs and Rn may change for certain reasons. The formulas given here are only examples.

[0243] In order to better understand the following embodiments, the research ideas of the embodiments of this application are introduced below:

[0244] As mentioned above, the terminal uses different methods to determine whether the adjacent cell meets the residence conditions for adjacent cells with different frequency points. Therefore, the solution mentioned in the embodiment of the present application is designed for adjacent cells with different frequency points, so as to ensure that the terminal can reselect the cell within the positioning area and can reselect to the cell included in the positioning area.

[0245] For the scenario of cells with different frequencies but different priorities and cells with different RATs mentioned above, the solution provided in the embodiment of the present application adjusts the priorities of the cells included in the positioning area to improve the priorities of the cells included in the positioning area. Specifically, the priority of the serving cell and the priority of the cells included in the positioning area among the adjacent cells of the serving cell are adjusted to ensure that the terminal can reselect a cell included in the positioning area with a higher priority when performing cell reselection within the positioning area. For the scenario of cells with the same frequency and cells with different frequencies but the same priority mentioned above, the solution provided in the embodiment of the present application modifies the R criterion to improve the R value of the cells included in the positioning area among the serving cell and the adjacent cells of the serving cell, to ensure that the terminal can reselect a cell included in the positioning area with a higher R value when performing cell reselection within the positioning area.

[0246] Based on this research idea, the following will introduce the solution provided by the embodiment of the present application for the scenario of cells with different priorities at different frequencies and cells with different RATs, as well as the scenario of cells at the same frequency and cells with the same priority at different frequencies.

[0247] 1. Scenario of cells with different frequencies and priorities and cells with different RATs

[0248] To enable a terminal to reselect a cell in the positioning area, it is necessary to ensure that the priority of the first type of cell is higher than the priority of the second type of cell, thereby increasing the likelihood of selecting a cell within the positioning area. The first type of cell includes the serving cell and cells within the positioning area among neighboring cells of the serving cell. The second type of cell includes cells within the positioning area among neighboring cells of the serving cell.

[0249] Please refer to Figure 7, which is a flowchart of the cell reselection method provided in an embodiment of the present application. The cell reselection method provided in an embodiment of the present application may include the following process:

[0250] 701. The network device sends second indication information to the terminal.

[0251] In the embodiment corresponding to FIG7 , the network device may be a network device currently serving the terminal. The network device may be a device in an NG RAN, such as a gNB or ng-eNB.

[0252] The second indication information is used by the terminal to know that the priority of the first type of cell is higher than the priority of the second type of cell. The understanding of the first indication message is understood with reference to the first indication message described in the embodiments corresponding to Figures 5 and 6, and will not be repeated here.

[0253] In one possible implementation, the second indication information may be carried in a system information block (SIB), a positioning system information block (Pos SIB), or an RRC. Exemplarily, the network device may reuse existing signaling, such as using an SIB or Pos SIB to carry the second indication information. This way, only one signaling needs to be sent to indicate to multiple terminals within a positioning area that the priority of the first type of cell is higher than the priority of the second type of cell. For example, a first terminal and a second terminal are configured with the same positioning area and the serving cells of the first terminal and the second terminal are the same. A single signaling may be used to configure the priority of the first type of cell to be higher than the priority of the second type of cell. This configuration may apply to each terminal within the positioning area. Furthermore, exemplarily, the network device may also carry the second indication information in RRC signaling, thereby indicating to multiple terminals within multiple positioning areas that the priority of the first type of cell of each terminal is higher than the priority of its second type of cell. For example, a first terminal and a second terminal are configured with different positioning areas, the first terminal is configured with the first positioning area, and the second terminal is configured with the second positioning area. By carrying the second indication information in RRC signaling, the first terminal and the second terminal may be indicated separately. Specifically, the first terminal is instructed that the priority of the first type of cell A is higher than the priority of the second type of cell A, and the second terminal is instructed that the priority of the first type of cell B is higher than the priority of the second type of cell B. The first type of cell A and the first type of cell B are different first type cells, and the two include different cells. The second type of cell A and the second type of cell B are different second type cells, and the two include different cells. It should be noted that the embodiments of the present application do not limit the specific carrying method of the second indication information.

[0254] In a possible implementation, the second indication information may be carried in the same message as the first indication message, for example, both the first indication message and the second indication information are carried in the SIB, or both the first indication message and the second indication information are carried in the Pos SIB, or both the first indication message and the second indication information are carried in the RRC.

[0255] In a possible implementation, the second indication information and the first indication message may be carried in different messages. For example, the first indication message is carried in the SIB, and the second indication information is carried in the RRC.

[0256] In addition, the second indication information can be expressed in a variety of ways. The following describes several possible ways of expression:

[0257] 1. The second indication information indicates the priority of the frequency points, so that the terminal obtains the priority of the first type of cell higher than the priority of the second type of cell.

[0258] In a possible implementation, the second indication information carries priorities of different operating frequencies. For example, the second indication information is specifically used to indicate that the priority of the operating frequency of the first type of cell of the terminal is higher than the priority of the operating frequency of the second type of cell.

[0259] As described above, the network device configures the positioning area for the terminal device through the first indication information. For example, the first indication information may carry one or more cell index lists, wherein each cell index list corresponds to a positioning area, and each cell index included in the cell index list corresponds to a cell. The network device is aware of the various cells included in the positioning area, and can configure the priority of the frequency points of the cells included in the positioning area, and send the configuration result to the terminal through the second indication information. For example, in one possible implementation, the priority of the frequency point of the serving cell can be configured to be the same as the priority of the frequency points of the cells in the positioning area among the adjacent cells of the serving cell (hereinafter, the cells in the positioning area among the adjacent cells of the serving cell are referred to as the first type of adjacent cells), and higher than the priority of the frequency points of the cells in the adjacent cells of the serving cell that do not belong to the positioning area (hereinafter, the cells in the adjacent cells of the serving cell that do not belong to the positioning area are referred to as the second type of adjacent cells). In one possible implementation, the priority of the frequency point of the serving cell can be configured to be different from the priority of the frequency point of the first type of adjacent cells, but both priorities are higher than the priority of the frequency point of the second type of adjacent cells.

[0260] To more intuitively illustrate this implementation, the following explanation is provided in conjunction with Figure 8. As shown in Figure 8, assuming the serving cell is cell 1, the neighboring cells include cell A, cell B, cell C, cell 2, cell 4, and cell 3. Assuming the cells within the positioning area include cells 1 to cell 7, then among the neighboring cells of the serving cell, cells 2, cell 3, and cell 4 are cells within the positioning area of ​​the serving cell, hereinafter referred to as first-type neighboring cells. Cells A, cell B, and cell C are cells within the positioning area of ​​the serving cell, hereinafter referred to as second-type neighboring cells. Assuming the frequency of cells 3, cell 4, and cell 2 are all 1, the frequency of cells A, cell B, and cell C are all 2, and the frequency of cell 1 is frequency 3, then in one possible implementation, the network device can indicate to the terminal device through second indication information that the priority of frequency 1 and frequency 3 is higher than the priority of frequency 2. For example, the priority of frequency 1 can be indicated as 7, the priority of frequency 3 as 7, and the priority of frequency 2 as 3, where a larger priority value represents a higher priority. Assuming that the frequencies of cell 3, cell 4, cell 2 and cell 1 are all 1, and the frequencies of cell A, cell B and cell C are all 2, in one possible implementation, the network device can indicate to the terminal device through the second indication information that the priority of frequency 1 is higher than the priority of frequency 2.

[0261] The following is an introduction to the embodiments of the present application in conjunction with the code segments defined in the 3rd generation partnership project (3GPP) protocol technical specifications. In one possible implementation, the embodiments of the present application can adjust the values ​​of the parameters related to the priority of the first type of cell in the 3GPP technical specifications to improve the priority of the first type of cell. For example, in the code segment shown below, CellReselectionPriorities represents a frequency priority list. The embodiments of the present application can adjust the value of SEQUENCE in this list, such as cellReselectionPriorit represents the integer part of the priority, and cellReselectionSubPriority represents the decimal part of the priority. The two constitute the value of the priority. The larger the value, the higher the priority. By adjusting the value of the priority, it is ensured that the priority of the first type of cell is higher than the priority of the second type of cell.

[0262]

[0263] In one possible implementation, the protocol stipulates that when priority is configured through SIB, the priority of the serving cell is configured in SIB2, the priority of the inter-frequency cell is configured in SIB4, and the priority of the inter-RAT cell is configured in SIB5. The solution provided in the embodiment of the present application can also reuse this provision and configure the priority of different types of cells through different SIBs. This will not be repeated below.

[0264] 2. The second indication information carries the first adjustment value.

[0265] The network device can broadcast the priority of each frequency point through the SIB. For example, the priority of the frequency point of the serving cell is configured in SIB2, the priority of the frequency point of the inter-frequency cell is configured in SIB4, and the priority of the frequency point of the inter-RAT cell is configured in SIB5. In the solution provided in the embodiment of the present application, a first adjustment parameter can be carried in the SIB, so that the terminal receiving the SIB adjusts the priority of the frequency point of the cell in the positioning area according to the first adjustment parameter. In one possible implementation, it is also possible to only enable the terminal for positioning that receives the SIB to adjust the priority of the frequency point of the cell in the area according to the first adjustment parameter, and other types of terminals except the terminal used for positioning ignore the first adjustment parameter.

[0266] In one possible implementation, after obtaining the first adjustment value, the terminal calculates it with the original priority of the frequency point of the cell in the positioning area to increase the priority of the frequency point of the cell in the positioning area. For example, the first adjustment value can be added to the original priority of the frequency point, and the result of the addition is used as the final priority of the cell frequency point, or the first adjustment value can be multiplied by the original priority, and the result of the multiplication is used as the final priority of the cell frequency point. For example, the value range of the original priority of the cell frequency point is [0, 8]. In one possible implementation, the value range of the first adjustment value can be set to [0, 8]. Assuming that the original priority of the frequency point of the cell in the positioning area is 5 and the first adjustment value is 2, the first adjustment value and the original priority of the frequency point are calculated, for example, 5+2=7, and 7 is used as the final priority of the frequency point of the cell in the positioning area. For another example, the first adjustment value and the original priority of the frequency point are calculated, for example, 5*2, and 10 is used as the final priority of the frequency point of the cell in the positioning area.

[0267] In one possible implementation, the original priority of the cell frequency within the positioning area may also be replaced by the first adjustment value. For example, assuming that the original priority of the cell frequency within the positioning area is 5 and the first adjustment value is 8, the original priority 5 is replaced by the first adjustment value 8, and the final priority of the cell frequency within the positioning area is updated to 8.

[0268] The following describes an embodiment of the present application in conjunction with the code segments defined in the 3rd Generation Partnership Project (3GPP) protocol technical specifications. In one possible implementation, the embodiment of the present application can add additional code defining the first adjustment parameter to the code segments in the 3GPP technical specifications that relate to the priority of the first type of cell. For example, by adding a priorityOffset related code segment to define the first adjustment value as an offset value, the terminal adds the first adjustment value to the priority of the original frequency point, and uses the result of the addition as the final priority of the cell frequency point; for another example, by adding a scalingFactor related code segment to define the first adjustment value as a scaling value, the terminal multiplies the first adjustment value with the priority of the original frequency point, and uses the result of the addition as the final priority of the cell frequency point; for another example, by adding cellReselectionPriorityPos and cellReselectionSubPriorityPos related code segments to define the original priority of the frequency point replaced by the first adjustment value.

[0269]

[0270]

[0271] 3. The second indication information indicates the priority of the cell identifiers so that the terminal obtains a higher priority of the first type of cells than the second type of cells.

[0272] In a possible implementation, the second indication information carries priorities of different cell identifiers. For example, the second indication information is specifically used to indicate to the terminal that the priority of the identifier of the first type of cell is higher than the priority of the identifier of the second type of cell.

[0273] In one possible implementation, the serving cell and the first type of neighboring cell may be configured to have the same priority, and to be higher than the priority of the second type of neighboring cell. In another possible implementation, the serving cell and the first type of neighboring cell may be configured to have different priorities, but both have higher priorities than the second type of neighboring cell.

[0274] The following explanation will continue with Figure 8. As shown in Figure 8, assuming that the service cell is cell 1, the adjacent cells include cell A, cell B, cell C, cell 2, cell 4, and cell 3. Assuming that the cells within the positioning area include cells 1 to cell 7, then cell 2, cell 3, and cell 4 among the adjacent cells of the service cell are cells within the positioning area among the adjacent cells of the service cell, hereinafter referred to as the first type of adjacent cells. Cell A, cell B, and cell C are cells that do not belong to the positioning area among the adjacent cells of the service cell, hereinafter referred to as the second type of adjacent cells. In a possible implementation, the network device can indicate to the terminal device through the second indication information that the priority of any one of the cell identifiers of cell identifier 1, cell identifier 3, cell identifier 4, cell identifier 5, and cell identifier 2 is higher than the priority of any one of the cell identifiers of cell identifier A, cell identifier B, and cell identifier C. For example, the priority of any one of cell identifiers 1, 3, 4, 5, and 2 is 7, and the priority of any one of cell identifiers A, B, and C is 3. A larger value of the priority indicates a higher priority.

[0275] 4. The second indication information indicates that the priority of the cell within the positioning area is higher than the priority of the neighboring cells of the cell within the positioning area.

[0276] In this embodiment, the network device does not directly indicate the priority of the frequency point or the priority of the cell identifier. Instead, it indicates the priority of the cell within the positioning area, which is higher than the priority of the neighboring cells of the cell within the positioning area. This ensures that during the cell reselection process, if there is a cell within the positioning area among the candidate cells, reselection is performed to the cell within the positioning area, and reselection is not performed to cells outside the positioning area.

[0277] The following example is illustrated in conjunction with FIG9 . Assuming that the cells within the positioning area include cells 1 to 7, the network device indicates to the terminal device that the priority of cells 1 to 7 is higher than the priority of cells other than the cells included in the positioning area among the neighboring cells of any of cells 1 to 7. For example, in the scenario shown in FIG9 , the neighboring cells of any of cells 1 to 7, other than the cells included in the positioning area, include cells A to L. Therefore, the priority of any of cells 1 to 7 is higher than the priority of any of cells A to L.

[0278] It should be noted that the various embodiments provided in the embodiments of the present application can be combined. For example, in one possible implementation, the second indication information may indicate that the priority of the frequency of the cell within the positioning area is higher than the priority of the frequency of other cells in the adjacent cells of the cell within the positioning area except the cell within the positioning area.

[0279] 702. The terminal performs cell reselection within the positioning area and reselects to a cell within the positioning area.

[0280] After receiving the third indication information from the network device, the terminal can learn that the priority of the first type of cell is higher than the priority of the second type of cell. The third indication information has been introduced in detail in 701 and will not be repeated here.

[0281] Corresponding to the various expressions of the second indication information introduced in 701 above, the terminal can know in different ways that the priority of the frequency of the first type of cell is higher than the priority of the frequency of the second type of cell. Please refer to the relevant description in 701 for specific understanding, and will not repeat it here.

[0282] The first type of cell and the second type of cell can be understood with reference to the relevant descriptions of the first type of cell and the second type of cell in 701, and will not be repeated here.

[0283] When the cell reselection conditions are met, for cells with different frequencies and priorities among the candidate cells, if any of these cells are within the positioning area, due to the configuration of 701, the priority of cells within the positioning area is higher than the priority of cells outside the positioning area among the candidate cells. Therefore, the terminal will reselect to a cell within the positioning area. Assume that the serving cell of the terminal is cell 1. The terminal is triggered to initiate the cell reselection process within cell 1. The neighboring cells include cells A, B, C, 2, 4, and 3. These neighboring cells and the serving cell can be used as candidate cells. If the candidate cells are cells with different frequencies and priorities, based on the cell reselection rules, the terminal will ultimately reselect to the cell with the highest priority. Since the priority of any of cells 2, 4, and 3 is higher than the priority of any of cells A, B, and C, the terminal will reselect to a cell within the positioning area, such as any of cells 2, 4, and 3, and will not reselect to any of cells A, B, and C.

[0284] The above describes how to enable the terminal to reselect to a cell in the positioning area after starting the cell reselection process in the scenario of cells with different frequencies and priorities and cells with different RATs. The following describes how to enable the terminal to restart to a cell in the positioning area after starting the cell reselection process in the scenario of cells with the same frequency and cells with the same priority.

[0285] 2. Same priority for cells in the same frequency and cells in different frequencies

[0286] If the candidate cells share the same frequency, or the candidate cells have different frequencies but the same priority, the terminal must first determine the S criterion when performing cell reselection. The terminal then determines the R criterion for cells that meet the S criterion. To ensure that the terminal can reselect to a cell in the positioning area, the R value of the first type of cell must be higher than the R value of the second type of cell, thereby increasing the likelihood of selecting a cell in the positioning area. The first type of cell and the second type of cell are understood in the same manner as described above and will not be repeated here.

[0287] Please refer to Figure 10, which is a flowchart of the cell reselection method provided in an embodiment of the present application. The cell reselection method provided in an embodiment of the present application may include the following steps:

[0288] 1001. The network device sends third indication information to the terminal.

[0289] The understanding of the network device can be understood by referring to the network device described in the embodiment corresponding to FIG7 , and will not be repeated here.

[0290] The third indication information is used by the terminal to learn that the R value of the first type of cell is higher than the R value of the second type of cell.

[0291] In one possible implementation, the third indication information can be carried in an SIB, Pos SIB, or RRC. Exemplarily, the network device can reuse existing signaling, such as using an SIB or Pos SIB to carry the third indication information. This way, only one signaling is needed to indicate to multiple terminals within a location area that the R value of a first type of cell is higher than the R value of a second type of cell. For example, if a first terminal and a second terminal are configured with the same location area and serve the same serving cell, a single signaling can be used to configure the R value of a first type of cell to be higher than the R value of a second type of cell. This configuration can apply to all terminals within the location area. Furthermore, exemplarily, the network device can also carry the second indication information in RRC signaling, thereby indicating to multiple terminals within multiple location areas that the R value of each first type of cell is higher than the R value of the corresponding second type of cell. For example, if a first terminal and a second terminal are configured with different location areas, with the first terminal configured in the first location area and the second terminal configured in the second location area, the second indication information can be carried in RRC signaling to indicate the first and second terminals separately. Specifically, the first terminal is instructed that the R value of the first type of cell A is higher than the R value of the second type of cell A, and the second terminal is instructed that the R value of the first type of cell B is higher than the R value of the second type of cell B. The first type of cell A and the first type of cell B are different first type cells, and the two include different cells. The second type of cell A and the second type of cell B are different second type cells, and the two include different cells. It should be noted that the embodiments of the present application do not limit the specific carrying method of the second indication information.

[0292] In a possible implementation, the third indication information may be carried in the same message as the second indication information and the first indication message, for example, the third indication information, the second indication information and the first indication information are all carried in the SIB, or the third indication information, the first indication message and the second indication information are all carried in the Pos SIB, or the third indication information, the first indication message and the second indication information are all carried in the RRC.

[0293] In a possible implementation, the third indication information, the first indication message, and the second indication information are carried in different messages. For example, the first indication message is carried in the SIB, the second indication information is carried in the RRC, and the third indication information is carried in the RRC.

[0294] In addition, the third indication information can be expressed in various ways. The following describes several possible expressions:

[0295] 1. The third indication information carries the second adjustment value.

[0296] After acquiring the second adjustment value, the terminal adjusts the R criterion according to the second adjustment value to increase the R value of the first type of cell or reduce the R value of the second type of cell.

[0297] Formula 1-4 introduced above: Rn=Qmeas,n-Qoffset-Qoffset temp .

[0298] The following implementations introduce solutions for improving the R value of the first type of cell:

[0299] Mode 1: In one possible implementation, after obtaining the second adjustment value, the terminal increases the value of Rn of the first type of cell according to the second adjustment value, for example, Rn is modified according to the following formula 1-5:

[0300] Rn=Qmeas,n-Qoffset-Qoffset temp +Qoffsetdeta (1-5)

[0301] The parameter Qoffsetdeta represents the second adjustment value, and Qoffsetdeta may be a real number greater than 0.

[0302] Method 2: In one possible implementation, after obtaining the second adjustment value, the terminal increases the value of Rn of the first type of cell according to the second adjustment value. For example, Rn is modified according to the following formula 1-6:

[0303] Rn=Qmeas,n-Qoffset*N-Qoffset temp (1-6)

[0304] The parameter N represents the second adjustment value, and N can be a real number greater than 0 and less than 1.

[0305] The following describes Method 1 and Method 2 in conjunction with the code segments defined in the 3GPP protocol technical specifications. In one possible implementation, the embodiment of the present application may add additional code to define the second adjustment parameter in the cell reselection code segment in the 3GPP technical specifications. For example, by adding the q-OffsetDelta related code segment, the second adjustment value is defined as the offset value, that is, the Qoffsetdeta in the above formula 1-5 is defined. For another example, by defining the second adjustment value as the scaling value through the scalingFactor related code segment, that is, the N in the above formula 1-6 is defined.

[0306]

[0307]

[0308] Mode 3: In one possible implementation, after obtaining the second adjustment value, the terminal may further increase the value of Rn of the first type of cell according to the second adjustment value. For example, Rn may be modified according to the following formula 1-7:

[0309] Rn=M*Qmeas,n-Qoffset-Qoffset temp (1-7)

[0310] The parameter M represents the second adjustment value, and M may be a real number greater than 1.

[0311] The following describes a solution for reducing the R value of the second type of cell in conjunction with an embodiment:

[0312] Mode 4: In one possible implementation, after obtaining the second adjustment value, the terminal reduces the value of Rn of the second type of cell according to the second adjustment value, for example, by modifying Rn according to the following formula 1-5:

[0313] Rn=Qmeas,n-Qoffset-Qoffset temp -Q1 (1-5)

[0314] The parameter Q1 represents the second adjustment value, and Q1 may be a real number greater than 0.

[0315] Mode 5: In one possible implementation, after obtaining the second adjustment value, the terminal reduces the value of Rn of the second type of cell according to the second adjustment value. For example, Rn is modified according to the following formula 1-6:

[0316] Rn=Qmeas,n-Qoffset*N1-Qoffset temp (1-6)

[0317] The parameter N1 represents the second adjustment value, and N can be a real number greater than 1.

[0318] Mode 6: In one possible implementation, after obtaining the second adjustment value, the terminal may further reduce the value of Rn of the second type of cell according to the second adjustment value. For example, Rn may be modified according to the following formula 1-7:

[0319] Rn=M1*Qmeas,n-Qoffset-Qoffset temp (1-7)

[0320] The parameter M represents the second adjustment value, and M can be a real number greater than 0 and less than 1.

[0321] In the implementations described in Methods 1 to 6, the third indication information carries a specific second adjustment value, so that the terminal increases the R value of the first type of cell or decreases the R value of the second type of cell based on the specific second adjustment value. Furthermore, in one possible implementation, the third indication information may not carry a specific second adjustment value, but simply instruct the terminal to increase the R value of the first type of cell or decrease the R value of the second type of cell, allowing the terminal to freely adjust the R value of the first type of cell or the R value of the second type of cell. This will be explained below with reference to specific implementations.

[0322] 2. The third indication information indicates to the terminal that the R value of the first type of cell is higher than the R value of the second type of cell.

[0323] In a possible implementation, when the terminal obtains, according to the third indication information, that the R value of the first type of cell needs to be increased, the terminal may increase the R value of the first type of cell according to a pre-stored adjustment value.

[0324] In a possible implementation, when the terminal obtains, according to the third indication information, that the R value of the second type of cell needs to be reduced, the terminal may reduce the R value of the second type of cell according to a pre-stored adjustment value.

[0325] In one possible implementation, the R value of the first type of cell obtained by the terminal according to the third indication information is higher than the R value of the second type of cell. In this implementation, after the terminal initiates the cell reselection process, if the candidate cells include the first type of cell and the second type of cell, the second type of cell is excluded and the reselected cell is obtained only from the first type of cells.

[0326] 1002. The terminal performs cell reselection within the positioning area and reselects to a cell within the positioning area.

[0327] When the cell reselection conditions are met, for the cells with different frequencies and the same priority level and the same frequency cells in the alternative cells, if there are cells within the positioning area among these cells, due to the configuration of step 1001, the R value of the cells within the positioning area will definitely be higher than the R value of the cells within the non-positioning area in the alternative cells, so the terminal will reselect to the cell within the positioning area.

[0328] After the terminal reselects a cell within the positioning area, based on the scheme described in Figure 5 or Figure 6 above, the terminal does not need to re-establish an RRC connection in the reselected cell, nor does it need to re-acquire SRS resources. Based on the scheme described in Figure 5 or Figure 6, the positioning process can be completed based on the already acquired SRS resources, thereby reducing the energy consumption of the terminal.

[0329] In the embodiments provided above, the methods provided in the embodiments of the present application are described from the perspective of the interaction between the terminal and the network device. In order to implement the various functions in the methods provided in the embodiments of the present application, the terminal, the network device, and the positioning management device may include hardware structures and / or software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. Whether a function of the above functions is executed in the form of hardware structures, software modules, or hardware structures plus software modules depends on the specific application and design constraints of the technical solution.

[0330] The following describes the device used to implement the above method in the embodiment of the present application in conjunction with the accompanying drawings. Therefore, the above content can be used in subsequent embodiments, and repeated content will not be repeated.

[0331] As shown in Figure 11, it is a possible exemplary block diagram of the communication device involved in this application. The communication device 1100 can correspondingly implement the functions or steps implemented by the terminal or network device or positioning management device in the above-mentioned various method embodiments. The communication device may include a transceiver module 1101 and a processing module 1102. Optionally, it may also include a storage module, which can be used to store instructions (code or program) and / or data. The transceiver module 1101 and the processing module 1102 can be coupled with the storage module. For example, the processing module 1102 can read the instructions (code or program) and / or data in the storage module to implement the corresponding method. The above-mentioned modules can be set independently or partially or fully integrated.

[0332] It should be understood that the processing module 1102 can be a processor or controller, for example, a general-purpose central processing unit (CPU), a general-purpose processor, a digital signal processing (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute the various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The transceiver module 1101 is an interface circuit of the device for receiving signals from other devices. For example, when the device is implemented in the form of a chip, the transceiver module 1101 is an interface circuit of the chip for receiving signals from other chips or devices, or is an interface circuit of the chip for sending signals to other chips or devices.

[0333] The communication device 1100 may be the network device, terminal, or positioning management device in the above-mentioned embodiments, or may be a chip for a network device, a terminal, or a positioning management device. For example, when the communication device 1100 is a network device, a terminal, or a positioning management device, the processing module 1102 may be, for example, a processor, and the transceiver module 1101 may be, for example, a transceiver. Optionally, the transceiver may include a radio frequency circuit, and the storage unit may be, for example, a memory. For example, when the communication device 1100 is a chip for a network device, a terminal, or a positioning management device, the processing module 1102 may be, for example, a processor, and the transceiver module 1101 may be, for example, an input / output interface, a pin, or a circuit. The processing module 1102 can execute computer-executable instructions stored in the storage unit. Optionally, the storage unit is a storage unit within the chip, such as a register, cache, etc. The storage unit can also be a storage unit located outside the chip within the network device, terminal or positioning management device, such as a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.

[0334] In some possible implementations, the communication device 1100 can implement the corresponding behaviors and functions of the terminal in the above-mentioned method embodiments. For example, the communication device 1100 can be a terminal, or a component (such as a chip or circuit) used in the terminal. The transceiver module 1101 can be used to support communication between the terminal and other network entities, such as supporting communication between the terminal and the network device and / or positioning management device shown in Figure 5 or Figure 6. For another example, it can support communication between the terminal and the network device shown in Figure 7 or Figure 10.

[0335] The processing module 1102 is used to control and manage the terminal's actions. For example, the processing module 1102 is used to support the terminal to perform all operations except sending and receiving in Figures 5 or 6. For another example, the processing module 1102 is used to support the terminal to perform all operations except sending and receiving in Figures 7 or 10.

[0336] For example, the transceiver module 1101 may be configured to execute all receiving or sending operations performed by the terminal in the embodiment shown in FIG5 , such as S501, S502, S503, S504, S502a, S503a, and S504a in the embodiment shown in FIG5 , and / or other processes for supporting the technology described herein. The processing module 1102 may be configured to execute all operations other than the transceiver operations performed by the terminal in the embodiment shown in FIG5 , such as S505 in the embodiment shown in FIG5 , and / or other processes for supporting the technology described herein.

[0337] For another example, the transceiver module 1101 may be configured to execute all receiving or sending operations performed by the terminal in the embodiment shown in FIG6 , such as S601, S604, S605, and S6011 in the embodiment shown in FIG6 , and / or other processes for supporting the technology described herein. The processing module 1102 is configured to execute all operations except the transceiver operations performed by the terminal in the embodiment shown in FIG6 , and / or other processes for supporting the technology described herein.

[0338] For another example, the transceiver module 1101 may be configured to perform all receiving or sending operations performed by the terminal in the embodiment shown in FIG7 , such as 701 in the embodiment shown in FIG7 , and / or other processes for supporting the technology described herein. The processing module 1102 is configured to perform all operations except the transceiver operations performed by the terminal in the embodiment shown in FIG7 , and / or other processes for supporting the technology described herein.

[0339] For another example, the transceiver module 1101 may be configured to perform all receiving or sending operations performed by the terminal in the embodiment shown in FIG10 , such as 1001 in the embodiment shown in FIG10 , and / or other processes for supporting the technology described herein. The processing module 1102 is configured to perform all operations other than the transceiver operations performed by the terminal in the embodiment shown in FIG10 , and / or other processes for supporting the technology described herein.

[0340] In some embodiments, the transceiver module 1101 is used to receive first indication information and a first message, wherein the first indication information is used to indicate one or more positioning areas, and / or, multiple cells included in each positioning area of ​​one or more positioning areas, the first message includes one or more resource configuration information, each of the resource configuration information is used to configure a reference signal resource, the reference signal resource is used by the communication device to send a reference signal, and the reference signal is used to determine the position of the communication device, wherein one resource configuration information corresponds to one positioning area; and the transceiver module 1101 is also used to send the reference signal in the positioning area indicated by the first indication information according to the resource configuration information corresponding to the positioning area.

[0341] As an optional implementation, the processing module 1102 is used to determine that the second cell is located in the first positioning area after the communication device 1100 switches from the first cell to the second cell, and then determine to send the reference signal according to the first resource configuration information corresponding to the first positioning area, and the first cell is located in the first positioning area.

[0342] As an optional implementation manner, the transceiver module 1101 is further configured to receive second indication information, where the second indication information is used to indicate one or more positioning areas and / or multiple cells included in each of the one or more positioning areas, wherein the priority of the second indication information is higher than the priority of the first indication information;

[0343] The transceiver module 1101 is further configured to send the reference signal in the positioning area indicated by the second indication information according to resource configuration information corresponding to the positioning area.

[0344] As an optional implementation manner, the first indication information includes one or more positioning area indexes, where one positioning area index corresponds to one positioning area.

[0345] As an optional implementation manner, the first indication information includes one or more cell index lists, wherein one cell index list corresponds to one positioning area, and one cell index in one cell index list corresponds to one cell.

[0346] As an optional implementation manner, the cell index parts included in different cell index lists are the same.

[0347] As an optional implementation, the processing module 1102 is used to: obtain the cell index of the second cell after the communication device 1100 switches from the first cell to the second cell; if it is determined that the cell index of the second cell is located in the first cell index list, determine to send the reference signal according to the first resource configuration information corresponding to the first cell index list; if it is determined that the cell index of the second cell is located in the second cell index list, obtain the second resource configuration information corresponding to the second cell index list, and determine to send the reference signal according to the second resource configuration information, wherein the cell index of the first cell is located in the first cell index list.

[0348] As an optional implementation manner, the first indication information further includes one or more reference signal resource indexes, wherein one reference signal resource index corresponds to one positioning area, or corresponds to one cell index list.

[0349] As an optional implementation manner, the processing module 1102 is specifically configured to, after the communication device 1100 is switched from the first cell to the second cell, determine that the second cell is located in a third cell index list, and determine a reference signal resource index corresponding to the third cell index list;

[0350] The transceiver module 1101 is configured to send the reference signal according to the reference signal resource corresponding to the reference signal resource index.

[0351] As an optional implementation, the transceiver module 1101 is also used to send a second message, which includes one or more of the following information: positioning accuracy information, battery capacity information of the communication device 1100, and energy saving requirement information of the communication device 1100.

[0352] As an optional implementation manner, the first indication information is determined according to the second message.

[0353] As an optional implementation manner, the first indication information is carried in SIB, Pos SIB, RRC message or LPP message.

[0354] As an optional implementation, the transceiver module 1101 is configured to receive first indication information, where the first indication information is used to indicate one or more positioning areas, each of the one or more positioning areas including multiple cells, and the multiple cells included in a positioning area apply the same resource configuration information, where the resource configuration information is used to configure reference signal resources, which are used by a terminal to transmit reference signals, which are used to determine the location of the terminal. The processing module 1102 is configured to cause the terminal to perform cell reselection within the positioning area indicated by the first indication information, and reselect to a cell included in the positioning area.

[0355] As an optional implementation, the transceiver module 1101 is also used to: receive second indication information, the second indication information is used for the terminal to know that the priority of the first type of cell is higher than the priority of the second type of cell, the first type of cell includes the service cell, and the cells in the adjacent cells of the service cell that belong to the positioning area, and the second type of cell is the cell in the adjacent cells of the service cell that does not belong to the positioning area.

[0356] As an optional implementation manner, the processing module 1102 is specifically configured to: perform, by the terminal, cell reselection within the positioning area indicated by the first indication information, and obtain candidate cells including a first type of cell and a second type of cell, where the first type of cell and the second type of cell are cells of different frequencies and priorities or cells of different radio access technologies (RATs). Reselect, among the first type of cell and the second type of cell, to a cell of the first type with a higher priority.

[0357] As an optional implementation manner, the second indication information is specifically used to indicate to the terminal that the priority of the frequency of the first type of cell is higher than the priority of the frequency of the second type of cell.

[0358] As an optional implementation, the second indication information is specifically used to indicate that the priority of the cell corresponding to the first type of identifier is higher than the priority of the cell corresponding to the second type of identifier. The first type of identifier includes the identifier of each cell in the first type of cell, and the second type of identifier includes the identifier of each cell in the second type of cell.

[0359] As an optional implementation, the second indication information carries a first adjustment value, and the first adjustment value is used to operate with the value of the first target parameter or the value of the second target parameter to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the second target parameter is used to indicate the priority of the second type of cell. The value of the first target parameter is positively correlated with the priority of the first type of cell, and the value of the second target parameter is positively correlated with the priority of the second type of cell.

[0360] As an optional implementation manner, the second indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0361] As an optional implementation, the transceiver module 1101 is also used to: receive a third indication information, the third indication information is used for the terminal to know that the R value of the first type of cell is higher than the R value of the second type of cell, the first type of cell includes the service cell, and the cells in the adjacent cells of the service cell that belong to the positioning area, and the second type of cell is the cell in the adjacent cells of the service cell that does not belong to the positioning area.

[0362] As an optional implementation, the processing module 1102 is specifically configured to: perform cell reselection within the positioning area indicated by the first indication information, obtain candidate cells including a first type of cell and a second type of cell, where the first type of cell and the second type of cell are intra-frequency cells or inter-frequency cells with the same priority; and reselect to a first type of cell with a higher R value between the first type of cell and the second type of cell.

[0363] As an optional implementation, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the third target parameter or the value of the fourth target parameter to reduce the value of the third target parameter or increase the value of the fourth target parameter. The third target parameter is the temporary bias of the first type of cell, the reselection bias of the first type of cell, or the reference signal received power RSRP of the first type of cell, and the fourth target parameter is the temporary bias of the second type of cell, the reselection bias of the second type of cell, or the reference signal received power RSRP of the second type of cell.

[0364] As an optional implementation, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0365] Rn=Qmeas,n-Qoffset-Qoffset temp +Qoffsetdeta, or satisfy the formula:

[0366] Rn=Qmeas,n-Qoffset*N-Qoffset temp ,

[0367] Among them, Rn is used to represent the R value of the first type of cell, Qmeans,n is used to represent the received signal strength value measured by the adjacent cell of the serving cell, Qoffset is used to represent the reselection bias of the first type of cell, Qoffset temp A temporary offset used to indicate a cell of the first type.

[0368] As an optional implementation manner, the third indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0369] It should be understood that the processing module 1102 in the embodiment of the present application can be implemented by a processor or a processor-related circuit component, and the transceiver module 1101 can be implemented by a transceiver or a transceiver-related circuit component.

[0370] In some possible implementations, the communication device 1100 can implement the behaviors and functions of the network device in the above-mentioned method embodiments. For example, the communication device 1100 can be a network device, or it can be a component (such as a chip or circuit) used in the network device. The transceiver module 1101 can be used to support communication between the network device and other network entities, such as supporting communication between the network device and the terminal shown in Figure 5 or Figure 6. For another example, the communication between the network device and the terminal shown in Figure 7 or Figure 10 is supported, and the processing module 1102 is used to control and manage the actions of the network device, for example, the processing module 1102 is used to support the network device to perform all operations in Figure 5 or Figure 6 except for sending and receiving. For another example, the processing module 1102 is used to instruct the network device to perform all operations in Figure 7 or Figure 10 except for sending and receiving.

[0371] For example, the transceiver module 1101 may be configured to execute all receiving or sending operations performed by the network device in the embodiment shown in FIG5 , such as S501, S502, S503, and S504 in the embodiment shown in FIG5 , and / or other processes for supporting the technology described herein. The processing module 1102 may be configured to execute all operations except the transceiver operations performed by the network device in the embodiment shown in FIG5 , and / or other processes for supporting the technology described herein.

[0372] For another example, the transceiver module 1101 can be used to perform all receiving or sending operations performed by the network device in the embodiment shown in FIG6 , such as steps S601-S611 except S603 in the embodiment shown in FIG6 , as well as the receiving or sending operations involved in S601 and S610, and / or other processes used to support the technology described herein. The processing module 1102 is used to perform all operations except the receiving and sending operations performed by the network device in the embodiment shown in FIG6 , such as S603 in the embodiment shown in FIG6 , and / or other processes used to support the technology described herein.

[0373] For another example, the transceiver module 1101 may be configured to perform all receiving or sending operations performed by the network device in the embodiment shown in FIG7 , such as 701 in the embodiment shown in FIG7 , and / or other processes for supporting the technology described herein. The processing module 1102 is configured to perform all operations except the transceiver operations performed by the network device in the embodiment shown in FIG7 , and / or other processes for supporting the technology described herein.

[0374] For another example, the transceiver module 1101 can be used to perform all receiving or sending operations performed by the network device in the embodiment shown in Figure 10, such as 1001 in the embodiment shown in Figure 10, and / or other processes for supporting the technology described herein. Among them, the processing module 1102 is used to perform all operations except the transceiver operations performed by the network device in the embodiment shown in Figure 10, and / or other processes for supporting the technology described herein.

[0375] In some embodiments, the transceiver module 1101 is used to send a first indication information and a first message, wherein the first indication information is used to indicate one or more positioning areas, and / or, multiple cells included in each positioning area of ​​one or more positioning areas, the first message includes one or more resource configuration information, each of the resource configuration information is used to configure a reference signal resource, the reference signal resource is used for the terminal to send a reference signal, and the reference signal is used to determine the position of the terminal, wherein one resource configuration information corresponds to one positioning area; and the transceiver module 1101 is also used to receive the reference signal; the processing module 1102 is used to measure the reference signal to obtain a positioning measurement result, and the positioning measurement result is used to determine the position of the terminal; the transceiver module 1101 is also used to send the positioning measurement result to the positioning management device function.

[0376] As an optional implementation method, the transceiver module 1101 is also used to send a second indication information, which is used to indicate one or more positioning areas, and / or, multiple cells included in each of the one or more positioning areas, wherein the priority of the second indication information is higher than the priority of the first indication information.

[0377] As an optional implementation manner, the first indication information includes one or more positioning area indexes, where one positioning area index corresponds to one positioning area.

[0378] As an optional implementation manner, the first indication information includes one or more cell index lists, wherein one cell index list corresponds to one positioning area, and one cell index in one cell index list corresponds to one cell.

[0379] As an optional implementation manner, different cell index lists include the same cell index part.

[0380] As an optional implementation manner, the first indication information further includes one or more reference signal resource indexes, wherein one reference signal resource index corresponds to one positioning area, or corresponds to one cell index list.

[0381] As an optional implementation, the transceiver module 1101 is further configured to receive a second message, which includes one or more of the following information: positioning accuracy information, battery capacity information of the terminal, and energy saving requirement information of the terminal.

[0382] In a possible implementation, the processing module 1102 is configured to determine the first indication information according to the second message.

[0383] In a possible implementation manner, the first indication information is carried in SIB, Pos SIB, or RRC message.

[0384] The transceiver module 1101 is used to send a first indication message, where the first indication message is used to indicate one or more positioning areas, so that the terminal performs cell reselection within the positioning area indicated by the first indication message, and reselects to a cell included in the positioning area. Each of the one or more positioning areas includes multiple cells, and the multiple cells included in one positioning area are subject to the same resource configuration information. The resource configuration information is used to configure reference signal resources, and the reference signal resources are used for the terminal to send a reference signal, and the reference signal is used to determine the position of the terminal.

[0385] In one possible implementation, the transceiver module 1101 is also used to: send a second indication message, where the second indication message is used for the terminal to know that the priority of the first type of cell is higher than the priority of the second type of cell, the first type of cell includes the service cell, and the cells in the adjacent cells of the service cell that belong to the positioning area, and the second type of cell is the cell in the adjacent cells of the service cell that does not belong to the positioning area.

[0386] In a possible implementation, the second indication information is specifically used to indicate to the terminal that the priority of the frequency of the first type of cell is higher than the priority of the frequency of the second type of cell.

[0387] In one possible implementation, the second indication information is specifically used to indicate that the priority of the cell corresponding to the first type of identifier is higher than the priority of the cell corresponding to the second type of identifier. The first type of identifier includes the identifier of each cell in the first type of cell, and the second type of identifier includes the identifier of each cell in the second type of cell.

[0388] In one possible implementation, the second indication information carries a first adjustment value, which is used to operate with the value of the first target parameter or the value of the second target value to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the first type of cell, and the value of the second target parameter is used to indicate the priority of the second type of cell. The value of the first target parameter is positively correlated with the priority of the first type of cell, and the value of the second target parameter is positively correlated with the priority of the second type of cell.

[0389] In a possible implementation manner, the second indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0390] In one possible implementation, the transceiver module 1101 is also used to: send a third indication message, where the third indication message is used for the terminal to know that the R value of the first type of cell is higher than the R value of the second type of cell, the first type of cell includes the service cell, and the cells in the adjacent cells of the service cell that belong to the positioning area, and the second type of cell is the cell in the adjacent cells of the service cell that does not belong to the positioning area.

[0391] In one possible implementation, the third indication information carries a second adjustment value, and the second adjustment value is used to operate with the value of the third target parameter or the value of the fourth target parameter to reduce the value of the third target parameter or increase the value of the fourth target parameter. The third target parameter is the temporary bias of the first type of cell, the reselection bias of the first type of cell, or the reference signal received power RSRP of the first type of cell, and the fourth target parameter is the temporary bias of the second type of cell, the reselection bias of the second type of cell, or the reference signal received power RSRP of the second type of cell.

[0392] In a possible implementation, the second adjustment value is used to calculate the value of the third target parameter to satisfy the formula:

[0393] Rn=Qmeas,n-Qoffset-Qoffset temp +Qoffsetdeta, or satisfy the formula:

[0394] Rn=Qmeas,n-Qoffset*N-Qoffset temp ,

[0395] Among them, Rn is used to represent the R value of the first type of cell, Qmeans,n is used to represent the received signal strength value measured by the adjacent cell of the serving cell, Qoffset is used to represent the reselection bias of the first type of cell, Qoffset temp A temporary offset used to indicate a cell of the first type.

[0396] In a possible implementation manner, the third indication information is carried in a system message SIB, a positioning system message Pos SIB, or a radio resource control RRC message.

[0397] It should be understood that the processing module 1102 in the embodiment of the present application can be implemented by a processor or a processor-related circuit component, and the transceiver module 1101 can be implemented by a transceiver or a transceiver-related circuit component.

[0398] In some possible implementations, the communication device 1100 can implement the behaviors and functions of the positioning management device in the above-mentioned method embodiments. For example, the communication device 1100 can be a positioning management function, or it can be a component (such as a chip or circuit) used in the positioning management device. The transceiver module 1101 can be used to support communication between the positioning management device and other network entities, such as supporting communication between the positioning management device and the network device shown in Figure 5 or Figure 6. The processing module 1102 is used to control and manage the actions of the positioning management device. For example, the processing module 1102 is used to support the positioning management device to perform all operations in Figure 5 or Figure 6 except for transceiver.

[0399] For example, the transceiver module 1101 may be configured to perform all receiving or sending operations performed by the location management device in the embodiment shown in FIG5 , such as S502a, S503a, and S504a in the embodiment shown in FIG5 , and / or other processes for supporting the technology described herein. The processing module 1102 is configured to perform all operations performed by the location management device in the embodiment shown in FIG5 , except for the receiving and sending operations.

[0400] For another example, the transceiver module 1101 can be used to perform all receiving or sending operations performed by the positioning management device in the embodiment shown in FIG6 , such as S602, S606-S609, S611 in the embodiment shown in FIG6 , as well as the receiving or sending operations involved in S601, and / or other processes used to support the technology described herein. The processing module 1102 is used to perform all operations other than the receiving and sending operations performed by the positioning management device in the embodiment shown in FIG6 , and / or other processes used to support the technology described herein.

[0401] In some embodiments, the transceiver module 1101 is used to send first indication information and receive positioning measurement results, wherein the first indication information is used to indicate one or more positioning areas, and / or, multiple cells included in each positioning area of ​​one or more positioning areas; the positioning measurement results are obtained by measuring based on the reference signal sent by the terminal; the processing module 1102 is used to determine the position of the terminal based on the positioning measurement results.

[0402] As an optional implementation, the transceiver module 1101 is further configured to receive a second message, where the second message includes one or more of the following information: positioning accuracy information, battery capacity information of the terminal, and energy saving requirement information of the terminal.

[0403] As an optional implementation manner, the first indication information or the second message is carried in an LPP message, that is, carried in proprietary signaling between the terminal and the LMF.

[0404] It should be understood that the processing module 1102 in the embodiment of the present application can be implemented by a processor or a processor-related circuit component, and the transceiver module 1101 can be implemented by a transceiver or a transceiver-related circuit component.

[0405] In addition, it should be understood that the transceiver module 1101 in the embodiment of the present application can also be regarded as including a receiving module and a sending module, wherein the receiving module is used to perform the steps related to reception performed by the transceiver module 1101 in the above embodiment, and the sending module is used to perform the steps related to transmission performed by the transceiver module 1101 in the above embodiment. The transceiver in the embodiment of the present application can also be regarded as including a receiver and a transmitter, wherein the receiver is used to perform the steps related to reception performed by the transceiver in the above embodiment, and the transmitter is used to perform the steps related to transmission performed by the transceiver in the above embodiment.

[0406] As shown in Figure 12, the communication device 1200 provided in an embodiment of the present application, wherein the communication device 1200 can be a network device that can implement the functions of the network device in the method provided in the embodiment of the present application, or the communication device 1200 can be a terminal that can implement the functions of the terminal in the method provided in the embodiment of the present application; or the communication device 1200 can be a positioning management device that can implement the functions of the positioning management device in the method provided in the embodiment of the present application; or the communication device 1200 can also be a device that can support the network device or terminal or positioning management device to implement the corresponding functions in the method provided in the embodiment of the present application. The communication device 1200 can be a chip system. In the embodiment of the present application, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0407] In hardware implementation, the transceiver module 1101 may be a transceiver, which is integrated into the communication device 1200 to form the communication interface 1210 .

[0408] The communication device 1200 includes at least one processor 1220. The processor 1220 can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the present application solution, and is used to implement or support the communication device 1200 in implementing the functions of the network device, terminal, or location management device in the method provided in the embodiment of the present application. For details, please refer to the detailed description in the method example, which is not repeated here.

[0409] The communication device 1200 may also include at least one memory 1230 for storing program instructions and / or data. The memory 1230 is coupled to the processor 1220. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1220 may operate in conjunction with the memory 1230. The processor 1220 may execute the program instructions and / or data stored in the memory 1230 so that the communication device 1200 implements the corresponding method. At least one of the at least one memory may be included in the processor 1220.

[0410] The communication device 1200 may also include a communication interface 1210, which uses any transceiver-like device for communicating with other devices or communication networks, such as RAN, wireless local area networks (WLAN), wired access networks, etc. The communication interface 1210 is used to communicate with other devices via a transmission medium, so that the device used in the communication device 1200 can communicate with other devices. Exemplarily, when the communication device 1200 is a network device, the other device is a terminal or a positioning management function; or, when the communication device is a terminal, the other device is a network device. The processor 1220 can use the communication interface 1210 to send and receive data. The communication interface 1210 can specifically be a transceiver.

[0411] The specific connection medium between the communication interface 1210, processor 1220, and memory 1230 is not limited in the embodiments of the present application. In Figure 12, the embodiment of the present application shows that the memory 1230, processor 1220, and communication interface 1210 are connected via a bus 1240. The bus is represented by a bold line in Figure 12. The connection method between other components is only for schematic illustration and is not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in Figure 12, but this does not mean that there is only one bus or one type of bus.

[0412] In the embodiments of the present application, the processor 1220 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present application may be directly implemented and executed by a hardware processor, or by a combination of hardware and software modules in the processor.

[0413] The memory 1230 may be a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may be independent and connected to the processor via a communication line 1240. The memory may also be integrated with the processor.

[0414] The memory 1230 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 1220. The processor 1220 is used to execute the computer-executable instructions stored in the memory 1230, thereby implementing the service management method provided in the above embodiment of the present application.

[0415] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0416] It should be noted that the communication device in the above embodiments can be a terminal or a circuit, or a chip used in a terminal or other combined devices, components, etc. with the above terminal functions. When the communication device is a terminal, the transceiver module can be a transceiver, which can include an antenna and a radio frequency circuit, etc., and the processing module can be a processor, such as a CPU. When the communication device is a component with the above terminal functions, the transceiver module can be a radio frequency unit, and the processing module can be a processor. When the communication device is a chip or a chip system, the transceiver module can be the input and output interface of the chip or chip system, and the processing module can be the processor of the chip or chip system. Among them, it can be considered that the input interface of the chip or chip system corresponds to the receiving module described above, and the output interface of the chip or chip system corresponds to the sending module described above.

[0417] Figure 13 shows a simplified schematic diagram of the structure of a communication device. For ease of understanding and illustration, Figure 13 uses a base station as an example of the communication device. This base station can be used in the system shown in Figures 2-4, and can be the network device shown in Figures 2-4, performing the functions of the network device in the above method embodiments.

[0418] The communication device 900 may include a transceiver 910, a memory 921, and a processor 922. The transceiver 910 may be used for communication, such as for sending or receiving the aforementioned indication information. The memory 921 is coupled to the processor 922 and may be used to store the programs and data necessary for the communication device 900 to implement various functions. The processor 922 is configured to support the communication device 900 in executing the corresponding functions of the aforementioned method, which may be implemented by invoking the programs stored in the memory 921.

[0419] Specifically, the transceiver 910 can be a wireless transceiver, which can be used to support the communication device 900 to receive and send signaling and / or data through a wireless air interface. The transceiver 910 can also be called a transceiver unit or a communication unit. The transceiver 910 may include one or more radio frequency units 912 and one or more antennas 911, wherein the radio frequency unit, such as a remote radio unit (RRU) or an active antenna unit (AAU), can be specifically used for transmitting radio frequency signals and converting radio frequency signals into baseband signals, and the one or more antennas can be specifically used for radiating and receiving radio frequency signals. Optionally, the transceiver 910 can only include the above radio frequency units. In this case, the communication device 900 may include a transceiver 910, a memory 921, a processor 922 and an antenna.

[0420] The memory 921 and processor 922 can be integrated or independent. As shown in Figure 13, the memory 921 and processor 922 can be integrated into the control unit 920 of the communication device 900. For example, the control unit 920 may include a baseband unit (BBU) of an LTE base station (also known as a baseband unit (DU)). Alternatively, the control unit 920 may include a DU and / or a CU in a base station for 5G and future wireless access technologies. The control unit 920 may be composed of one or more antenna panels, wherein multiple antenna panels may jointly support a wireless access network of a single access standard (such as an LTE network), or multiple antenna panels may separately support wireless access networks of different access standards (such as an LTE network, a 5G network, or other networks). The memory 921 and processor 922 may serve one or more antenna panels. In other words, a separate memory 921 and processor 922 may be provided on each antenna panel. Alternatively, multiple antenna panels may share the same memory 921 and processor 922. In addition, each antenna panel may be provided with necessary circuitry, such as circuitry for coupling the memory 921 and processor 922. The transceiver 910 , the processor 922 , and the memory 921 may be connected via a bus structure and / or other connection media.

[0421] Based on the structure shown in Figure 13, when communication device 900 needs to send data, processor 922 performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF unit. The RF unit then performs RF processing on the baseband signal and transmits the RF signal via the antenna in the form of electromagnetic waves. When data is sent to communication device 900, the RF unit receives the RF signal via the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to processor 922. Processor 922 converts the baseband signal into data and processes the data.

[0422] Based on the structure shown in FIG13 , the transceiver 910 may be configured to execute the steps executed by the transceiver module 1101 . And / or, the processor 922 may be configured to call instructions in the memory 921 to execute the steps executed by the processing module 1102 .

[0423] Figure 14 shows a simplified structural diagram of a terminal. For ease of understanding and illustration, in Figure 14, the terminal takes a mobile phone as an example. As shown in Figure 14, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and input and output devices. The processor is mainly used to process communication protocols and communication data, as well as to control the on-board unit, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of devices may not have input and output devices.

[0424] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then transmits the RF signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, only one memory and processor are shown in Figure 14. In actual device products, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be set independently of the processor or integrated with the processor, and this embodiment of the application does not limit this.

[0425] In the embodiments of the present application, the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the device, and the processor with processing function can be regarded as the processing unit of the device. As shown in Figure 14, the device 1000 includes a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 can also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit 1020 can also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 1010 can be regarded as a receiving unit, and the device used to implement the transmitting function in the transceiver unit 1010 can be regarded as a transmitting unit, that is, the transceiver unit 1010 includes a receiving unit and a transmitting unit. The transceiver unit 1010 can sometimes also be referred to as a transceiver, a transceiver, or a transceiver circuit, etc. The receiving unit can sometimes also be referred to as a receiver, a receiver, or a receiving circuit, etc. The transmitting unit can sometimes also be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0426] It should be understood that the transceiver unit 1010 is used to perform the sending and receiving operations on the terminal side in the above method embodiment, and the processing unit 1020 is used to perform other operations on the terminal except the sending and receiving operations in the above method embodiment.

[0427] For example, in one implementation, the transceiver unit 1010 may be configured to execute the steps related to transceiving in the embodiments shown in Figures 5, 6, 7, and 10, and / or to support other processes of the technology described herein. The processing unit 1020 may be configured to execute the steps related to processing in the embodiments shown in Figures 5, 6, 7, and 10, and / or to support other processes of the technology described herein.

[0428] When the communication device is a chip-type device or circuit, the device may include a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit and / or a communication interface; and the processing unit may be an integrated processor, microprocessor, or integrated circuit.

[0429] The present application also provides a communication system. Specifically, the communication system includes a network device, a terminal, and a positioning management device, or may include more network devices, multiple terminals, and more positioning management devices. Exemplarily, the communication system includes a network device, a terminal, and a positioning management device for implementing the relevant functions of the embodiment of Figure 5 or Figure 6 above. Exemplarily, the communication system includes a network device and a terminal for implementing the relevant functions of the embodiment of Figure 7 or Figure 10 above.

[0430] The network devices are respectively used to implement the functions of the network device parts related to the embodiments of the present application, for example, to implement the functions of the network device parts related to the embodiments shown in Figures 5 or 6 or 7 or 10 above. The terminals are used to implement the functions of the terminal parts related to the embodiments of the present application, for example, to implement the functions of the terminals related to the embodiments shown in Figures 5 or 6 or 7 or 10 above. The positioning management device is used to implement the functions of the positioning management device parts related to Figures 5 or 6 above. Please refer to the relevant descriptions in the above method embodiments for details, which will not be repeated here.

[0431] An embodiment of the present application also provides a computer-readable storage medium, including instructions, which, when executed on a computer, enables the computer to execute the method executed by the network device, terminal or positioning management device in Figure 5 or Figure 6 or Figure 7 or Figure 10.

[0432] A computer program product is also provided in an embodiment of the present application, including instructions, which, when executed on a computer, enables the computer to execute the method executed by the network device, terminal or positioning management device in Figure 5 or Figure 6 or Figure 7 or Figure 10.

[0433] The embodiment of the present application provides a chip system, which includes a processor and may also include a memory, for implementing the functions of the network device, terminal, and positioning management device in the aforementioned method. The chip system can be composed of a chip or include a chip and other discrete devices.

[0434] The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, they may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., an SSD), etc.

[0435] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the scope of protection of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A method for cell reselection, characterized in that, it includes: The terminal receives first indication information, which is used to indicate one or more location areas, each of the one or more location areas includes multiple cells, and the resource configuration information of the multiple cells included in one location area is the same, and the resource configuration information is used to configure reference signal resources; The terminal performs cell reselection within the one or more location areas indicated by the first indication information, and the terminal reselects to a cell included within the one or more location areas.

2. The method according to claim 1, characterized in that, the method further includes: The terminal receives second indication information, which is used to notify the terminal that the priority of the first type of cell is higher than the priority of the second type of cell. The first type of cell includes the serving cell and the cells within the location area among the neighboring cells of the serving cell, and the second type of cell is the neighboring cell of the serving cell that does not belong to the location area.

3. The method according to claim 2, characterized in that, when the terminal performs cell reselection within the location area indicated by the first indication information and the terminal reselects to a cell included within the location area, it includes: The terminal determines candidate cells, which include the first type of cell and the second type of cell. The first type of cell and the second type of cell are cells of different frequencies with different priorities or cells of different radio access technologies (RATs); The terminal reselects to the first type of cell with a higher priority among the candidate cells.

4. The method according to claim 2 or 3, characterized in that, the second indication information is specifically used to indicate to the terminal that the priority of the frequency point of the first type of cell is higher than the priority of the frequency point of the second type of cell.

5. The method according to claim 2 or 3, characterized in that, the second indication information is specifically used to indicate to the terminal that the priority of the identifier of the first type of cell is higher than the priority of the identifier of the second type of cell.

6. The method according to claim 1, characterized in that, the method further includes: The terminal receives third indication information, which is used to notify the terminal that the R value of the first type of cell is higher than the R value of the second type of cell. The first type of cell includes the serving cell and the cells within the location area among the neighboring cells of the serving cell, and the second type of cell is the neighboring cell of the serving cell that does not belong to the location area.

7. The method according to claim 6, characterized in that, when the terminal performs cell reselection within the location area indicated by the first indication information and the terminal reselects to a cell included within the location area, it includes: The terminal determines candidate cells, which include the first type of cell and the second type of cell. The first type of cell and the second type of cell are cells of the same frequency or cells of different frequencies with the same priority; The terminal reselects to the cell of the first type with a higher R value among the candidate cells.

8. A method for cell reselection, characterized in that, it includes: The network device sends first indication information, which is used to indicate one or more positioning areas, so that the terminal performs cell reselection within the positioning areas indicated by the first indication information and reselects to the cells included in the positioning areas. Each of the one or more positioning areas includes multiple cells, and the multiple cells included in one positioning area apply the same resource configuration information.

9. The method according to claim 8, characterized in that, the method further includes: The network device sends second indication information, which is used to notify the terminal that the priority of the cells of the first type is higher than the priority of the cells of the second type. The cells of the first type include the serving cell and the cells belonging to the positioning area among the neighboring cells of the serving cell. The cells of the second type are the neighboring cells of the serving cell that do not belong to the positioning area.

10. The method according to claim 9, characterized in that, The second indication information is specifically used to indicate to the terminal that the priority of the frequency points of the cells of the first type is higher than the priority of the frequency points of the cells of the second type.

11. The method according to claim 9, characterized in that, The second indication information is specifically used to indicate to the terminal that the priority of the identifiers of the cells of the first type is higher than the priority of the identifiers of the cells of the second type.

12. The method according to claim 2 or 3 or 9, characterized in that, A first adjustment value is carried in the second indication information, and the first adjustment value is used for arithmetic operations with the value of a first target parameter or the value of a second target value to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the cells of the first type, the value of the second target parameter is used to indicate the priority of the cells of the second type, the value of the first target parameter is positively correlated with the priority of the cells of the first type, and the value of the second target parameter is positively correlated with the priority of the cells of the second type.

13. The method according to any one of claims 2 to 5, or 9 to 12, characterized in that, The second indication information is carried in the system information block SIB, the positioning system information block Pos SIB or the radio resource control RRC message.

14. The method according to claim 8, characterized in that, the method further includes: The network device sends third indication information, which is used for the terminal to know that the R value of the cells of the first type is higher than the R value of the cells of the second type. The cells of the first type include the serving cell and the cells belonging to the positioning area among the neighboring cells of the serving cell. The cells of the second type are the neighboring cells of the serving cell that do not belong to the positioning area.

15. The method according to claim 6 or 7 or 14, characterized in that, The second adjustment value is carried in the third indication information, and the second adjustment value is used for arithmetic operation with the value of the third target parameter or the value of the fourth target parameter to reduce the value of the third target parameter or increase the value of the fourth target parameter. The third target parameter is the temporary offset of the cell of the first type, the reselection offset of the cell of the first type, or the reference signal received power (RSRP) of the cell of the first type. The fourth target parameter is the temporary offset of the cell of the second type, the reselection offset of the cell of the second type, or the reference signal received power (RSRP) of the cell of the second type.

16. The method according to claim 15, wherein, the operation of the second adjustment value with the value of the third target parameter satisfies the formula: Rn = Qmeas,n - Qoffset - Qoffsettemp + Qoffsetdeta, or satisfies the formula: Rn = Qmeas,n - Qoffset * N - Qoffsettemp, wherein, Rn is used to represent the R value of the cell of the first type, Qmeans,n is used to represent the received signal strength value measured from the neighboring cell of the serving cell, Qoffset is used to represent the reselection offset of the cell of the first type, and Qoffsettemp is used to represent the temporary offset of the cell of the first type.

17. The method according to claim 6 or 7, or any one of claims 14 to 16, wherein, the third indication information is carried in the system information block (SIB), the positioning system information block (Pos SIB), or the radio resource control (RRC) message.

18. A communication device, wherein, comprising: a transceiver module, configured to receive first indication information, where the first indication information is used to indicate one or more positioning areas, each of the one or more positioning areas includes multiple cells, and the resource configuration information of the multiple cells included in one positioning area is the same, and the resource configuration information is used to configure reference signal resources; a processing module, configured to perform cell reselection within the one or more positioning areas indicated by the first indication information, and the terminal reselects to a cell included within the one or more positioning areas.

19. The communication device according to claim 18, wherein, the transceiver module is further configured to receive second indication information, where the second indication information is used to notify the terminal that the priority of the cell of the first type is higher than the priority of the cell of the second type. The cell of the first type includes the serving cell and the cells within the positioning area among the neighboring cells of the serving cell, and the cell of the second type is the neighboring cell of the serving cell that does not belong to the positioning area.

20. The communication device according to claim 19, wherein, the processing module is specifically configured to: Determine candidate cells, where the candidate cells include cells of the first type and cells of the second type, and the cells of the first type and the cells of the second type belong to cells of different frequencies and different priorities or belong to cells of different radio access technologies (RATs); Re-select to the cell of the first type with a higher priority among the candidate cells.

21. The communication device according to claim 19 or 20, wherein, The second indication information is specifically used to indicate to the terminal that the priority of the frequency point of the cell of the first type is higher than the priority of the frequency point of the cell of the second type.

22. The communication device according to claim 19 or 20, wherein, The second indication information is specifically used to indicate to the terminal that the priority of the identifier of the cell of the first type is higher than the priority of the identifier of the cell of the second type.

23. The communication device according to claim 18, wherein, The transceiver module is further configured to receive third indication information, where the third indication information is used to notify the terminal that the R value of the cell of the first type is higher than the R value of the cell of the second type. The cell of the first type includes the serving cell and the cells belonging to the positioning area among the neighboring cells of the serving cell, and the cell of the second type is the neighboring cell of the serving cell that does not belong to the positioning area.

24. The communication device according to claim 23, wherein, The processing module is specifically configured to: Determine candidate cells, where the candidate cells include cells of the first type and cells of the second type, and the cells of the first type and the cells of the second type belong to cells of the same frequency or cells of different frequencies with the same priority; Re-select to the cell of the first type with a higher R value among the candidate cells.

25. A communication device, wherein, comprises: A transceiver module, configured to send first indication information, where the first indication information is used to indicate one or more positioning areas, so that the terminal performs cell reselection within the positioning areas indicated by the first indication information and re-selects to the cells included in the positioning areas. Each of the one or more positioning areas includes multiple cells, and the multiple cells included in one positioning area apply the same resource configuration information.

26. The communication device according to claim 25, wherein, The transceiver module is further configured to send second indication information, where the second indication information is used to notify the terminal that the priority of the cell of the first type is higher than the priority of the cell of the second type. The cell of the first type includes the serving cell and the cells belonging to the positioning area among the neighboring cells of the serving cell, and the cell of the second type is the neighboring cell of the serving cell that does not belong to the positioning area.

27. The communication device according to claim 26, wherein, The second indication information is specifically used to indicate to the terminal that the priority of the frequency point of the cell of the first type is higher than the priority of the frequency point of the cell of the second type.

28. The communication device according to claim 26, wherein, The second indication information is specifically used to indicate to the terminal that the priority of the identifier of the first type of cell is higher than the priority of the identifier of the second type of cell.

29. The communication device according to claim 19 or 20 or 26, wherein, a first adjustment value is carried in the second indication information, and the first adjustment value is used for performing an operation with the value of a first target parameter or the value of a second target value to increase the value of the first target parameter or decrease the value of the second target parameter. The value of the first target parameter is used to indicate the priority of the first type of cell, the value of the second target parameter is used to indicate the priority of the second type of cell, the value of the first target parameter is positively correlated with the priority of the first type of cell, and the value of the second target parameter is positively correlated with the priority of the second type of cell.

30. The communication device according to any one of claims 19 to 22, or 26 to 29, wherein, the second indication information is carried in a system information block (SIB), a positioning system information block (Pos SIB), or a radio resource control (RRC) message.

31. The communication device according to claim 25, wherein, the transceiver module is further configured to send third indication information, and the third indication information is used for the terminal to learn that the R value of the first type of cell is higher than the R value of the second type of cell. The first type of cell includes a serving cell and the cells within the positioning area among the neighboring cells of the serving cell, and the second type of cell is the neighboring cell of the serving cell that does not belong to the positioning area.

32. The communication device according to claim 23 or 24 or 31, wherein, a second adjustment value is carried in the third indication information, and the second adjustment value is used for performing an operation with the value of a third target parameter or the value of a fourth target parameter to decrease the value of the third target parameter or increase the value of the fourth target parameter. The third target parameter is the temporary offset of the first type of cell, the reselection offset of the first type of cell, or the reference signal received power (RSRP) of the first type of cell, and the fourth target parameter is the temporary offset of the second type of cell, the reselection offset of the second type of cell, or the reference signal received power (RSRP) of the second type of cell.

33. The communication device according to claim 32, wherein, the operation of the second adjustment value with the value of the third target parameter satisfies the formula: Rn = Qmeas,n - Qoffset - Qoffsettemp + Qoffsetdeta, or satisfies the formula: Rn = Qmeas,n - Qoffset * N - Qoffsettemp, Wherein, Rn is used to represent the R value of the cell of the first type, Qmeans,n is used to represent the received signal strength value measured from the neighboring cells of the serving cell, Qoffset is used to represent the reselection offset of the cell of the first type, and Qoffsettemp is used to represent the temporary offset of the cell of the first type.

34. The communication device according to any one of claims 23 or 24, or 31 to 33, characterized in that the third indication information is carried in a system information block (SIB), a positioning system information block (Pos SIB), or a radio resource control (RRC) message.

35. A communication device, characterized in that it includes: a processor, and the processor is configured to execute the method according to any one of claims 1 to 17.

36. A communication device, characterized in that the communication device includes a processor and a memory, the memory is configured to store a computer program, and the processor is configured to execute the computer program stored on the memory, so that the communication device executes the method according to any one of claims 1 to 17.

37. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is executed by the computer, it causes the computer to execute the method according to any one of claims 1 to 17.

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