Cell reselection method, related equipment and storage medium

Abstract

The present application discloses a cell reselection method, a terminal, a network device and a storage medium. The method includes: the terminal receives a first parameter; the first parameter represents the minimum quality requirement of the terminal receiving a multicast and broadcast service (MBS); the cell is reselected using the received first parameter; the first parameter satisfies one of the following conditions: the first parameter is for an MBS; the first parameter is for a temporary mobile group identifier (TMGI); the first parameter is for a group of MBSs or common to all MBSs.

Description

Technical Field

[0001] The present application relates to the field of wireless communications, and in particular to a cell reselection method, apparatus, related equipment, and storage medium. Background Art

[0002] To effectively utilize mobile network resources, Multicast and Broadcast Service (MBS) technology has been proposed. MBS technology is a technology that transmits data from a single data source to multiple target terminals. It enables the sharing of network resources (including the core network, transmission network (a network that transmits electrical or optical signals), and access network) and improves the utilization of network resources, especially air interface resources.

[0003] However, in the related art, for a terminal in an idle state or an inactive state, cell reselection may affect the terminal's reception of the MBS. Summary of the Invention

[0004] To solve related technical problems, embodiments of the present application provide a cell reselection method, apparatus, related equipment, and storage medium.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides a cell reselection method, applied to a terminal, including:

[0007] receiving a first parameter; wherein the first parameter represents a minimum quality requirement for a terminal to receive MBS;

[0008] Perform cell reselection using the received first parameter, wherein the first parameter satisfies one of the following conditions:

[0009] The first parameter is for one MBS;

[0010] The first parameter is for a temporary mobile group identity (TMGI);

[0011] The first parameter is common to a group of MBSs or all MBSs.

[0012] In the above solution, the cell reselection using the first information includes:

[0013] Determine the reselection ranking of the serving cell and neighboring cells;

[0014] Cell reselection is performed using the first parameter and the reselection rankings of the serving cell and the neighboring cell.

[0015] In the above solution, performing cell reselection using the first parameter and the reselection rankings of the serving cell and the neighboring cell includes:

[0016] Determine a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0017] Select a cell with the highest reselection ranking from the cells whose cell quality meets the first parameter requirement, and perform cell reselection.

[0018] In the above solution, determining the reselection ranking of the serving cell and the neighboring cell includes:

[0019] Determine the R value of the reselection ranking of the serving cell and the neighboring cell.

[0020] In the above solution, the fifth parameter is used to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; the fifth parameter represents the offset of the MBS.

[0021] In the above solution, the fifth parameter satisfies one of the following conditions:

[0022] The fifth parameter is an offset for an MBS;

[0023] The fifth parameter is an offset for a TMGI;

[0024] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0025] In the above solution, the use of the fifth parameter to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell includes one of the following:

[0026] When the fifth parameter is an offset for an MBS, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of M MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offset of an MBS that satisfies the fourth condition; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive;

[0027] When the fifth parameter is an offset for a TMGI, an R value of a reselection ranking of the serving cell and / or the neighboring cell is determined using the offsets of N TMGIs; or an R value of a reselection ranking of the serving cell and / or the neighboring cell is determined using the offset of a TMGI that satisfies the fifth condition; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to MBSs that the terminal is interested in or wants to receive;

[0028] When the fifth parameter is an offset common to all MBSs, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of Q MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offset of one MBS; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive;

[0029] In the case where the fifth parameter is an offset for a group of MBSs, the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the offset of P MBSs; or the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the offset of an MBS that meets the seventh condition; P is an integer greater than or equal to 1; P represents the number of MBSs that the terminal is interested in or wants to receive.

[0030] In the above solution, the method further includes:

[0031] The fifth parameter is received.

[0032] In the above solution, the fifth parameter is received through a system message.

[0033] In the above solution, the first parameter is received through a system message.

[0034] The embodiment of the present application further provides a cell reselection method, applied to a network device, including:

[0035] A first parameter is sent to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive the MBS; and the sent first parameter satisfies one of the following conditions:

[0036] The first parameter is for one MBS;

[0037] The first parameter is for a TMGI;

[0038] The first parameter is common to a group of MBSs or all MBSs.

[0039] In the above solution, the method further includes:

[0040] A fifth parameter is sent to the terminal; the fifth parameter represents an offset of the MBS.

[0041] In the above solution, the fifth parameter satisfies one of the following conditions:

[0042] The fifth parameter is an offset for an MBS;

[0043] The fifth parameter is an offset for a TMGI;

[0044] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0045] In the above solution, the fifth parameter is sent to the terminal via a system message.

[0046] In the above solution, the first parameter is sent to the terminal via a system message.

[0047] The embodiment of the present application further provides a cell reselection method, applied to a terminal, comprising:

[0048] receiving a fifth parameter; wherein the fifth parameter represents an offset of the MBS;

[0049] Determine an R value of a reselection ranking of a serving cell and / or a neighboring cell using the received fifth parameter;

[0050] Cell reselection is performed using the R values ​​of the reselection rankings of the serving cell and the neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0051] The fifth parameter is an offset for an MBS;

[0052] The fifth parameter is an offset for a TMGI;

[0053] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0054] In the above solution, the use of the fifth parameter to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell includes one of the following:

[0055] When the fifth parameter is an offset for an MBS, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of M MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offset of an MBS that satisfies the fourth condition; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive;

[0056] When the fifth parameter is an offset for a TMGI, an R value of a reselection ranking of the serving cell and / or the neighboring cell is determined using the offsets of N TMGIs; or an R value of a reselection ranking of the serving cell and / or the neighboring cell is determined using the offset of a TMGI that satisfies the fifth condition; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to MBSs that the terminal is interested in or wants to receive;

[0057] When the fifth parameter is an offset common to all MBSs, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of Q MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offset of one MBS; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive;

[0058] In the case where the fifth parameter is an offset for a group of MBSs, the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the offset of P MBSs; or the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the offset of an MBS that meets the seventh condition; P is an integer greater than or equal to 1; P represents the number of MBSs that the terminal is interested in or wants to receive.

[0059] In the above solution, the fifth parameter is received through a system message.

[0060] In the above solution, the method further includes:

[0061] receiving a first parameter; wherein the first parameter represents a minimum quality requirement for a terminal to receive MBS;

[0062] Cell reselection is performed using the R values ​​of the reselection rankings of the serving cell and the neighboring cell in combination with the received first parameter.

[0063] In the above solution, the first parameter satisfies one of the following conditions:

[0064] The first parameter is for one MBS;

[0065] The first parameter is for a TMGI;

[0066] The first parameter is common to a group of MBSs or all MBSs.

[0067] In the above solution, the cell reselection is performed by using the R value of the reselection ranking of the serving cell and the neighboring cell in combination with the received first parameter, including:

[0068] Determine a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0069] A cell with a high R value is selected from cells whose cell quality meets the first parameter requirement, and cell reselection is performed.

[0070] In the above solution, the first parameter is received through a system message.

[0071] The embodiment of the present application further provides a cell reselection method, applied to a network device, including:

[0072] Sending a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; wherein the fifth parameter satisfies one of the following conditions:

[0073] The fifth parameter is an offset for an MBS;

[0074] The fifth parameter is an offset for a TMGI;

[0075] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0076] In the above solution, the fifth parameter is sent to the terminal via a system message.

[0077] In the above solution, the method further includes:

[0078] A first parameter is sent to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive MBS.

[0079] In the above solution, the first parameter sent meets one of the following conditions:

[0080] The first parameter is for one MBS;

[0081] The first parameter is for a TMGI;

[0082] The first parameter is common to a group of MBSs or all MBSs.

[0083] In the above solution, the first parameter is sent to the terminal via a system message.

[0084] The embodiment of the present application further provides a cell reselection device, comprising:

[0085] A first receiving unit is configured to receive a first parameter, wherein the first parameter represents a minimum quality requirement for a terminal to receive MBS;

[0086] The first processing unit is configured to perform cell reselection using the received first parameter, wherein the first parameter satisfies one of the following conditions:

[0087] The first parameter is for one MBS;

[0088] The first parameter is for a TMGI;

[0089] The first parameter is common to a group of MBSs or all MBSs.

[0090] The embodiment of the present application further provides a cell reselection device, comprising:

[0091] The first sending unit is configured to send a first parameter to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive the MBS; and the sent first parameter satisfies one of the following conditions:

[0092] The first parameter is for one MBS;

[0093] The first parameter is for a TMGI;

[0094] The first parameter is common to a group of MBSs or all MBSs.

[0095] The embodiment of the present application further provides a cell reselection device, comprising:

[0096] A second receiving unit is configured to receive a fifth parameter, wherein the fifth parameter represents an offset of the MBS;

[0097] The second processing unit is configured to determine an R value of a reselection ranking of the serving cell and / or the neighboring cell using the received fifth parameter; and perform cell reselection using the R value of the reselection ranking of the serving cell and the neighboring cell, wherein the fifth parameter satisfies one of the following conditions:

[0098] The fifth parameter is an offset for an MBS;

[0099] The fifth parameter is an offset for a TMGI;

[0100] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0101] The embodiment of the present application further provides a cell reselection device, comprising:

[0102] The second sending unit is configured to send a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; wherein the fifth parameter satisfies one of the following conditions:

[0103] The fifth parameter is an offset for an MBS;

[0104] The fifth parameter is an offset for a TMGI;

[0105] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0106] The embodiment of the present application further provides a terminal, comprising: a first communication interface and a first processor; wherein,

[0107] The first communication interface is configured to receive a first parameter, wherein the first parameter represents a minimum quality requirement for a terminal to receive an MBS; and the first processor is configured to perform cell reselection using the received first parameter, wherein the first parameter satisfies one of the following conditions:

[0108] The first parameter is for one MBS;

[0109] The first parameter is for a TMGI;

[0110] The first parameter is common to a group of MBSs or all MBSs;

[0111] or,

[0112] The first communication interface is configured to receive a fifth parameter, wherein the fifth parameter represents an offset of the MBS; the first processor is configured to determine an R value of a reselection ranking of a serving cell and / or a neighboring cell using the received fifth parameter; and perform cell reselection using the R values ​​of the reselection rankings of the serving cell and the neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0113] The fifth parameter is an offset for an MBS;

[0114] The fifth parameter is an offset for a TMGI;

[0115] The fifth parameter is an offset common to all MBSs.

[0116] The embodiment of the present application further provides a network device, comprising: a second communication interface and a second processor; wherein,

[0117] The second communication interface is configured to send a first parameter to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive MBS; and the sent first parameter satisfies one of the following conditions:

[0118] The first parameter is for one MBS;

[0119] The first parameter is for a TMGI;

[0120] The first parameter is common to a group of MBSs or all MBSs;

[0121] or,

[0122] The second communication interface is configured to send a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; wherein the fifth parameter satisfies one of the following conditions:

[0123] The fifth parameter is an offset for an MBS;

[0124] The fifth parameter is an offset for a TMGI;

[0125] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0126] An embodiment of the present application further provides a terminal, comprising: a first processor and a first memory for storing a computer program that can be run on the processor,

[0127] Wherein, the first processor is used to execute the steps of any of the above-mentioned terminal-side methods when running the computer program.

[0128] The embodiment of the present application further provides a network device, comprising: a second processor and a second memory for storing a computer program that can be run on the processor,

[0129] Wherein, the second processor is used to execute the steps of any of the above-mentioned methods on the network device side when running the computer program.

[0130] An embodiment of the present application also provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned methods on the terminal side are implemented, or the steps of any of the above-mentioned methods on the network device side are implemented.

[0131] In a cell reselection method, apparatus, related device, and storage medium provided by embodiments of the present application, a network device sends a first parameter to a terminal; the first parameter represents a minimum quality requirement for the terminal to receive an MBS; the sent first parameter satisfies one of the following conditions: the first parameter is specific to an MBS; the first parameter is specific to a TMGI; the first parameter is common to a group of MBSs or all MBSs; the terminal uses the received first parameter to perform cell reselection, and the network device indicates to the terminal the minimum quality requirement for the terminal to receive the MBS. The minimum quality requirement for the received MBS can reflect the quality of service (QoS) requirements or priorities of different MBS services (e.g., services with high QoS requirements or high priority also have high quality requirements). Thus, a new reselection criterion is used to implement cell reselection based on the MBS of interest to the terminal. This allows the terminal to receive the MBS service of interest while in an idle or inactive state, or to receive the MBS service as soon as possible after entering a connected state, while also ensuring that the quality of the cell reselected by the terminal satisfies the basic requirements for receiving the MBS service. On the other hand, the network device sends a fifth parameter to the terminal; the fifth parameter represents an offset of an MBS; wherein the fifth parameter satisfies one of the following conditions: the fifth parameter is an offset for an MBS; the fifth parameter is an offset for a TMGI; the fifth parameter is an offset common to a group of MBSs or all MBSs; the terminal uses the received fifth parameter to determine an R value for a reselection ranking of a serving cell and / or a neighboring cell; and uses the R values ​​of the reselection rankings of the serving cell and the neighboring cell to perform cell reselection; the terminal uses the received fifth parameter to determine the R value for the reselection ranking of the serving cell and / or the neighboring cell, and implements cell reselection based on the MBS of interest to the terminal by defining a new R value calculation method and an MBS offset that reflects the QoS requirements or priorities of different MBS services. This enables the terminal to receive the MBS service of interest when in an idle or inactive state, or to receive the MBS service as soon as possible after entering a connected state, while also ensuring that the quality of the cell reselected by the terminal satisfies the basic requirements for receiving the MBS service. BRIEF DESCRIPTION OF THE DRAWINGS

[0132] Figure 1 This is a flowchart of the first cell reselection method according to an embodiment of the present application;

[0133] Figure 2 This is a flowchart of the second cell reselection method according to an embodiment of the present application;

[0134] Figure 3 This is a flowchart of the third method for cell reselection according to an embodiment of the present application;

[0135] Figure 4This is a flowchart of the fourth method for cell reselection according to an embodiment of the present application;

[0136] Figure 5 This is a schematic structural diagram of the first cell reselection device according to an embodiment of the present application;

[0137] Figure 6 This is a structural diagram of a second cell reselection device according to an embodiment of the present application;

[0138] Figure 7 This is a schematic structural diagram of a third cell reselection device according to an embodiment of the present application;

[0139] Figure 8 This is a schematic structural diagram of a fourth cell reselection device according to an embodiment of the present application;

[0140] Figure 9 This is a schematic diagram of the terminal structure of an embodiment of the present application;

[0141] Figure 10 This is a schematic diagram of the network device structure according to an embodiment of the present application;

[0142] Figure 11 This is a schematic diagram of the cell reselection system structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0143] The present application will be described in further detail below with reference to the accompanying drawings and embodiments.

[0144] In Long Term Evolution (LTE) systems, MBS (also known as MBS services) are transmitted over the air interface using Multicast Broadcast Single Frequency Network (MBSFN). However, this MBS deployment method lacks flexibility and wastes resources. Therefore, in Fifth Generation (5G) systems, MBS deployment will likely not be based on MBSFN. Instead, MBS support will be provided at a cell-level granularity. Specifically, the base station determines whether to use point-to-point (PTP) or point-to-multipoint (PTM) transmission over the air interface based on information such as the number of user equipment (UE) receiving MBS within the cell. MBS service transmission supports both connected terminals and terminals in idle or inactive states. This means that terminals can receive MBS without being in a connected state.

[0145] In related technologies, a terminal in an idle or inactive state reselects a cell based on the measured reference signal received power (RSRP), without considering whether the cell supports MBS. Therefore, the terminal may select or reselect a cell that does not support MBS, which will affect the reception of MBS by the terminal in the idle or inactive state. In this case, for a terminal that enters a connected state and then receives MBS, it is also necessary to further switch to a cell that supports MBS before receiving MBS, which increases the latency of the terminal in performing MBS and affects the service experience.

[0146] Based on this, in various embodiments of the present invention, cell reselection is performed based on the MBS that the terminal is interested in. Specifically, there are two implementation methods:

[0147] The first approach is to define a new reselection criterion to implement cell reselection based on the MBS that the terminal is interested in.

[0148] The second method is to define a new R value calculation method to implement cell reselection based on the MBS that the terminal is interested in.

[0149] The two implementation methods are described in detail below.

[0150] For the first method, the embodiment of the present application provides a cell reselection method, which is applied to a terminal, such as Figure 1 As shown, the method includes:

[0151] Step 101: Receive a first parameter; the first parameter represents a minimum quality requirement for a terminal to receive MBS;

[0152] Step 102: Perform cell reselection using the received first parameter; wherein the first parameter satisfies one of the following conditions:

[0153] The first parameter is for one MBS;

[0154] The first parameter is for a TMGI;

[0155] The first parameter is common to a group of MBSs or all MBSs.

[0156] In step 101, in actual application, the network side may send the first parameter through a system message (such as SIB1 or SIB4; for example, defining a new system message for MBS, etc.), that is, broadcast the first parameter through the system; based on this, the terminal may receive the first parameter through the system message.

[0157] When the received first parameter includes the first parameter of each MBS, that is, the first parameter is based on MBS granularity, that is, when each MBS (which can be expressed as per MBS in English) corresponds to a first parameter, the network side sends the first parameter of each MBS. The first parameter of each MBS can be the same or different. For example, assuming that a cell supports four MBSs, the network side sends four first parameters, each first parameter corresponding to an MBS.

[0158] When the received first parameter includes the first parameter for each TMGI, that is, the first parameter is based on the TMGI granularity, that is, when each TMGI (which can be expressed as per TMGI) corresponds to a first parameter, the network side sends the first parameter for each TMGI. The first parameter for each TMGI can be the same or different. For example, assuming that a cell contains two TMGIs, the network side sends two first parameters, each corresponding to a TMGI.

[0159] When the received first parameter includes a first parameter common to all MBSs, that is, the first parameter is common to all MBSs, the network side only sends one first parameter. For example, assuming that a cell supports three MBSs, the network side only sends one first parameter, and one first parameter corresponds to three MBSs.

[0160] The first parameter actually represents the minimum quality requirement for a terminal to receive MBS in a cell supporting MBS.

[0161] That is, the cell corresponding to the first parameter is a cell supporting MBS; and the minimum quality requirement for receiving MBS by the terminal in the cell is met.

[0162] In actual application, the first parameter may be expressed in the form of an RSRP threshold value, a reference signal received quality (RSRQ) threshold value, or a signal to interference plus noise ratio (SINR) threshold value, or a combination of these thresholds. That is, the first parameter may be expressed in the form of at least one of an RSRP threshold value, an RSRQ threshold value, and an SINR threshold value.

[0163] The first parameter of different granularities actually reflects the QoS requirements or priorities of different MBS services (e.g., services with high QoS requirements or high priorities also have high quality requirements), so that when the terminal reselects a cell, it can select a cell with good quality that can provide the MBS that the terminal is interested in or wants to receive.

[0164] In one embodiment, the specific implementation of step 102 may include:

[0165] Determine the reselection ranking of the serving cell and neighboring cells;

[0166] Cell reselection is performed using the first parameter and the reselection rankings of the serving cell and the neighboring cell.

[0167] Specifically, determining a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0168] A cell with a high reselection ranking (ie, the top one) is selected from the cells whose cell quality meets the first parameter requirement, and cell reselection is performed.

[0169] Among them, when the first parameter is based on the granularity of MBS, that is, when the received first parameter includes the first parameter with the granularity of MBS, the terminal can determine whether the cell quality of the cell supporting MBS meets the first parameter requirement based on the MBS that the cell supporting MBS itself is interested in or wants to receive (can also be called the MBS that it hopes to receive); for example, it is assumed that cell 1 contains 3 MBSs, namely MBS1, MBS2, and MBS3; and the MBSs that the terminal is interested in or wants to receive in cell 1 are MBS1 and MBS3; when the cell quality of cell 1 meets the first parameter requirement corresponding to at least one of MBS1 and MBS3, the terminal considers cell 1 to be a cell whose cell quality meets the first parameter requirement, that is, cell 1 is a candidate cell for cell reselection.

[0170] When the first parameter is based on the granularity of TMGI, that is, when the received first parameter includes the first parameter with the granularity of TMGI, the terminal can determine whether the cell quality of the cell supporting MBS meets the first parameter requirement based on the TMGI corresponding to the MBS that the cell supporting MBS itself is interested in or the TMGI corresponding to the MBS that the terminal wants to receive. For example, it is assumed that cell 2 contains 4 TMGIs, namely TMGI1, TMGI2, TMGI3, and TMGI4; and the TMGIs corresponding to the MBS that the terminal is interested in or wants to receive in cell 2 are TMGI2 and TMGI3; when the cell quality of cell 2 meets the first parameter requirement corresponding to at least one of TMGI2 and TMGI3, the terminal considers cell 2 to be a cell whose cell quality meets the first parameter requirement, that is, cell 2 is a candidate cell for cell reselection.

[0171] When the first parameter is based on the granularity of all MBSs, that is, when the received first parameter includes the first parameter with the granularity of all MBSs, the terminal can determine whether the cell quality of the cell supporting the MBS meets the first parameter requirement based on the MBS that the cell supporting the MBS is interested in or the MBS that the terminal wants to receive. For example, it is assumed that cell 3 contains 3 MBSs, namely MBS1, MBS2, and MBS3; and the MBS that the terminal is interested in or wants to receive in cell 3 is MBS1. Since the three MBSs in cell 3 share one first parameter, at this time, as long as the cell quality of cell 3 meets the first parameter requirement, the terminal considers cell 3 as a cell whose cell quality meets the first parameter requirement, that is, cell 3 is a candidate cell for cell reselection.

[0172] When the first parameter is based on the granularity of a group of MBSs, that is, when the received first parameter includes the first parameter of a group of MBSs, the terminal can determine whether the cell quality of the cell supporting the MBS meets the first parameter requirement based on the MBS that the cell supporting the MBS is interested in or the MBS that the terminal wants to receive. For example, it is assumed that cell 4 includes 4 MBSs, namely MBS1, MBS2, MBS3, and MBS4; MBS1 and MBS2 are a group, and MBS3 and MBS4 are a group, and the MBS that the terminal is interested in or wants to receive in cell 4 is MBS1. Since MBS1 and MBS2 in cell 4 share a first parameter, and MBS3 and MBS4 share a first parameter, at this time, as long as the cell quality of cell 4 meets the first parameter requirement corresponding to MBS1, the terminal considers cell 4 to be a cell whose cell quality meets the first parameter requirement, that is, cell 4 is a candidate cell for cell reselection.

[0173] Here, it should be noted that the cell quality meeting the minimum quality requirement means that the terminal can receive the MBS in the cell only when the cell quality measured by the terminal is higher than or equal to the minimum quality for receiving the MBS.

[0174] When determining candidate cells for reselection, if a cell supports MBS, but the supported MBS is not the MBS that the terminal is interested in or wants to receive, relevant technologies may be used to perform cell reselection.

[0175] In actual application, the R criterion may be used to determine the reselection ranking of the serving cell and the neighboring cell.

[0176] Based on this, in one embodiment, determining the reselection rankings of the serving cell and the neighboring cell includes:

[0177] Determine the R value of the reselection ranking of the serving cell and the neighboring cell.

[0178] Here, in actual application, relevant technologies can be used to determine the R value of the reselection ranking of the serving cell and the neighboring cell. The R value can be understood as a reselection ranking parameter of a cell.

[0179] Specifically, the second parameter, the third parameter and the fourth parameter are used to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; the second parameter represents the signal quality of the cell (neighboring cell or serving cell); the third parameter represents the hysteresis value; and the fourth parameter represents the offset of the neighboring cell.

[0180] More specifically, the following formula is used to determine the R value of the reselection ranking of the serving cell and the neighboring cell:

[0181] R s =Q meas,s +Q hyst -Qoffset temp (1)

[0182] R n =Q meas,n -Qoffset-Qoffset temp (2)

[0183] Among them, R s R value indicating the reselection ranking of the serving cell; Q meas,s Indicates the signal quality of the serving cell (such as the RSRP measurement of the serving cell); Q meas,n Indicates the signal quality of the neighboring cell (such as the RSRP measurement of the neighboring cell); Q hyst Indicates hysteresis value; Qoffset indicates offset; Qoffset temp Indicates a temporary offset.

[0184] Here, Qoffset and Qoffset temp The value of can refer to the relevant technology and will not be described here.

[0185] In practical applications, a new R-value calculation method can also be defined, that is, the R-value of re-election with the same frequency or different frequencies and the same ranking can be calculated through the modified mechanism.

[0186] Specifically, the fifth parameter is used to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell.

[0187] More specifically, the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the second parameter, the third parameter, the fourth parameter, and the fifth parameter; the fifth parameter represents the offset of the MBS.

[0188] More specifically, the following formula is used to determine the R value of the reselection ranking of the serving cell and the neighboring cell:

[0189] Rs =Q meas,s +Q hyst -Qoffset temp +Qoffset mbs (3)

[0190] R n =Q meas,n -Qoffset-Qoffset temp +Qoffset mbs (4)

[0191] Among them, Qoffset mbs Indicates the offset of the MBS.

[0192] Here, the fifth parameter actually represents the fifth parameter of the terminal in a cell supporting MBS.

[0193] The MBS offset can be understood as the offset of the MBS service, specifically, the offset of the MBS service relative to the benchmark. When selecting the benchmark, the priority or QoS of the MBS can be considered. For example, a unicast service can be used as the benchmark, that is, the MBS offset is the offset of an MBS service relative to the unicast service; for another example, a multicast service can be set as the benchmark, and the MBS offset is the offset of an MBS service relative to the MBS service.

[0194] In one embodiment, the fifth parameter may satisfy one of the following conditions:

[0195] The fifth parameter is an offset for an MBS;

[0196] The fifth parameter is an offset for a TMGI;

[0197] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0198] Among them, when the fifth parameter is an offset for an MBS, the terminal can select the offset of at least one MBS, and use the offset of the selected at least one MBS to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell. Specifically, when the fifth parameter is based on the granularity of MBS, that is, when each MBS corresponds to an offset, and the number of MBSs that meet the first condition (that is, the MBS of interest to the terminal in the cell supporting the MBS or the MBS that the terminal wants to receive in the cell supporting the MBS (which can be all the MBSs of interest or the MBSs that the terminal wants to receive in the MBS cell, or the MBS that meets the preset conditions (such as meeting a certain QoS or service priority) selected from all the MBSs of interest or the MBSs that the terminal wants to receive in the MBS cell)) is M (that is, M represents the number of MBSs that the terminal is interested in or wants to receive), the fifth parameter used when calculating the R value includes the offsets of M MBSs; M is an integer greater than or equal to 1, that is, the MBS offset of the cell is correspondingly increased by M offsets Qoffset mbs1 , Qoffset mbs2 ..., Qoffset mbsM , that is, Qoffset in the formula mbs =Qoffset mbs1 +Qoffset mbs2 +…+Qoffset mbsM In other words, when the fifth parameter is an offset for one MBS, that is, each MBS corresponds to one fifth parameter, the terminal uses the offsets of the M MBSs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell. Of course, in order to avoid causing an excessive offset to the R value, thereby causing the UE to reselect a cell with a significantly lower quality than the cell with the best quality, thereby causing greater neighboring cell interference, only one of the offsets of these MBSs may be used as the fifth parameter for calculating the R value; that is, the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the offset of an MBS that meets the fourth condition (such as the maximum value among the offsets of these MBSs).

[0199] When the fifth parameter is an offset for a TMGI, the terminal may select at least one TMGI offset and determine the R value of the reselection ranking of the serving cell and / or neighboring cell using the offset of the selected at least one TMGI. Specifically, when the fifth parameter is based on the granularity of TMGI, that is, when each TMGI corresponds to an offset, and the number of TMGIs that meet the second condition (i.e., the TMGI corresponding to the MBS of interest to the terminal in the cell supporting MBS or the TMGI corresponding to the MBS that the terminal wants to receive in the cell supporting MBS (which may be all MBSs of interest or MBSs that the terminal wants to receive in the MBS cell, or an MBS that satisfies a preset condition (such as a certain QoS or service priority) selected from all MBSs of interest or MBSs that the terminal wants to receive)) is N (i.e., N represents the number of TMGIs corresponding to the MBSs that the terminal is interested in or wants to receive), the fifth parameter used in calculating the R value includes N TMGI offsets; N is an integer greater than or equal to 1, that is, the MBS offset of the cell is correspondingly increased by N offsets Qoffset mbs1 , Qoffset mbs2 ..., Qoffset mbsN , that is, Qoffset in the formula mbs =Qoffset mbs1 +Qoffset mbs2 +…+Qoffset mbsN In other words, when the fifth parameter is an offset for a TMGI, the offsets of N TMGIs are used to determine the R value of the reselection ranking of the serving cell and / or neighboring cell. Of course, to avoid excessive offset of the R value, thereby causing the UE to reselect to a cell with a significantly lower quality than the best cell and causing significant neighboring cell interference, only one of the TMGI offsets may be used as the fifth parameter for calculating the R value. That is, the R value of the reselection ranking of the serving cell and / or neighboring cell may be determined using the offset of a TMGI that meets the fifth condition (e.g., the maximum value among the MBS offsets of these TMGIs).

[0200] When the fifth parameter is the offset of the MBS shared by all MBSs, the terminal may use the offset of at least one MBS to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell. Specifically, when the fifth parameter is based on the offset shared by all MBSs in the cell, that is, the offset shared by all MBSs, and the number of MBSs that meet the third condition (that is, the MBS of interest to the terminal in the cell supporting the MBS or the MBS that the terminal wants to receive in the cell supporting the MBS (which may be all the MBSs of interest or the MBSs that the terminal wants to receive, or the MBS that meets the preset conditions (such as meeting a certain QoS or service priority) selected from all the MBSs of interest or the MBSs that the terminal wants to receive)) is Q (that is, Q represents the number of MBS services that the terminal is interested in or wants to receive), the fifth parameter used in calculating the R value includes the offsets of Q MBSs (here, the offset of the MBS refers to the offset shared by all MBSs); Q is an integer greater than or equal to 1, that is, Qoffset in the formula mbs =Q*Qoffset mbs (representing an offset shared by all MBSs); in other words, when the fifth parameter is an offset shared by all MBSs, the offsets of the Q MBSs are used to determine the R value of the reselection ranking of the serving cell and / or neighboring cell. Of course, in order to avoid causing an excessive offset to the R value, thereby causing the UE to reselect to a cell with a significantly lower quality than the cell with the best quality, causing greater neighboring cell interference, it is also possible to use only the offset of one MBS (here, the offset of the MBS refers to the offset shared by all MBSs) as the fifth parameter used to calculate the R value; that is, when the fifth parameter is an offset shared by all MBSs, the offset of one MBS is used to determine the R value of the reselection ranking of the serving cell and / or neighboring cell.

[0201] When the fifth parameter is an offset for a group of MBSs, the terminal may select the offset of at least one group of MBSs and determine the R value of the reselection ranking of the serving cell and / or neighboring cell using the offset of the selected at least one group of MBSs. Specifically, when the fifth parameter is based on the granularity of a group of MBSs, that is, when each group of MBSs corresponds to an offset, and the number of MBSs that meet the sixth condition (that is, the TMGI corresponding to the MBS of interest to the terminal in the cell supporting the MBS or the MBS that the terminal wants to receive in the cell supporting the MBS (which may be all MBSs of interest or MBSs that the terminal wants to receive in the MBS cell, or an MBS that satisfies a preset condition (such as a certain QoS or service priority) selected from all MBSs of interest or MBSs that the terminal wants to receive in the MBS cell)) is P (that is, P represents the number of MBSs that the terminal is interested in or wants to receive), the fifth parameter used in calculating the R value includes the offsets of P groups of MBSs; P is an integer greater than or equal to 1, that is, the MBS offset of the cell is correspondingly increased by P offsets Qoffset mbs1 , Qoffset mbs2 ..., Qoffset mbsP , that is, Qoffset in the formula mbs =Qoffset mbs1 +Qoffset mbs2 +…+Qoffset mbsP In other words, when the fifth parameter is an offset for a group of MBSs, the offsets of P TMGIs are used to determine the R value of the reselection ranking of the serving cell and / or neighboring cell. Here, when the group of MBSs that the terminal is interested in or wants to receive is different, the offset of the corresponding group of MBSs needs to be used to calculate Qoffset in the formula. mbs When the MBSs that the terminal is interested in or wants to receive are in the same group, the offset of the MBS group is used to calculate the Qoffset in the formula. mbs For example, assume that cell 4 contains 4 MBSs, namely MBS1, MBS2, MBS3, and MBS4; MBS1 and MBS2 are a group, and the corresponding offset is Qoffset mbs-1 , MBS3, MBS4 are a group, the corresponding offset is Qoffset mbs-2 If the MBS that the terminal is interested in or wants to receive in cell 4 is MBS1 and MBS3, then Qoffset in the formula mbs =Qoffset mbs-1 +Qoffset mbs-2 If the MBS that the terminal is interested in or wants to receive in cell 4 is MBS1 and MBS2, then Qoffset in the formulambs =2*Qoffset mbs-1 ; Of course, in order to avoid causing an excessive offset to the R value, thereby causing the UE to reselect a cell with a large quality gap compared to the cell with the best quality, causing greater neighboring cell interference, only one of the offsets of these groups of MBSs can be used as the fifth parameter used to calculate the R value; that is, the offset of a group of MBS that meets the seventh condition (such as the maximum value of the offsets of these groups of MBSs, etc.) is used to determine the R value of the reselection ranking of the serving cell and / or neighboring cell.

[0202] In actual application, the fifth parameter can be obtained from the network side.

[0203] Based on this, in one embodiment, the method may further include:

[0204] The fifth parameter is received.

[0205] Here, the network side may send the fifth parameter via a system message, ie, broadcast the fifth parameter via the system, so that the terminal may receive the fifth parameter via a system message (such as SIB1 or SIB4; or defining a new system message for MBS, etc.).

[0206] In actual application, the R value of the reselection ranking may also be referred to as the R value of same-frequency or different-frequency reselection with the same priority.

[0207] After determining the R values ​​for the reselection ranking of the serving cell and neighboring cells, among the cells whose cell quality meets the first parameter requirement, the cell with the highest R value that supports the MBS that the terminal is interested in or wants to receive is selected for cell reselection. Specifically, the R values ​​can be sorted from high to low, and the first cell that supports the MBS that the terminal is interested in is selected for cell reselection.

[0208] Here, in actual application, when the terminal is interested in or wants to receive multiple MBSs, the cell with the highest R value can be selected for reselection among cells whose cell quality meets the first parameter requirement and supports all MBSs that the terminal is interested in or wants to receive.

[0209] When there is no cell whose cell quality meets the first parameter requirement and supports all MBSs that the terminal is interested in or wants to receive, the cell with the highest R value can be selected for reselection among the cells whose cell quality meets the first parameter requirement and supports the MBS with the highest terminal priority (that is, the terminal is most interested in or most wants to receive).

[0210] When there is no cell whose cell quality meets the first parameter requirement and supports all MBSs that the terminal is interested in or wants to receive, the cell can also be selected for cell reselection, which has the cell quality meeting the first parameter requirement and can support the most types of MBSs that the terminal is interested in or wants to receive; when there are multiple cells whose cell quality meets the first parameter requirement and can support the most types of MBSs that the terminal is interested in or wants to receive, the cell with the highest R value can be selected for reselection.

[0211] Accordingly, an embodiment of the present application further provides a cell reselection method, which is applied to a network device (specifically, a base station), including:

[0212] A first parameter is sent to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive the MBS; and the sent first parameter satisfies one of the following conditions:

[0213] The first parameter is for one MBS;

[0214] The first parameter is for a TMGI;

[0215] The first parameter is common to a group of MBSs or all MBSs.

[0216] The first parameter is used by the terminal to perform cell reselection.

[0217] Here, in actual application, the network device needs to first determine the first parameter. The network device can determine the first parameter as needed.

[0218] In one embodiment, the first parameter is sent to the terminal via a system message.

[0219] In one embodiment, the method may further include:

[0220] A fifth parameter is sent to the terminal; the fifth parameter represents an offset of the MBS; and the fifth parameter is used by the terminal to determine an R value for a reselection ranking of a serving cell and / or a neighboring cell.

[0221] The fifth parameter satisfies one of the following conditions:

[0222] The fifth parameter is an offset for an MBS;

[0223] The fifth parameter is an offset for a TMGI;

[0224] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0225] In one embodiment, the fifth parameter is sent to the terminal via a system message.

[0226] In actual application, the network device needs to determine the fifth parameter first. The network device can determine the fifth parameter as needed.

[0227] The embodiment of the present application provides a cell reselection method, such as Figure 2 As shown, the method includes:

[0228] Step 201: The network device sends a first parameter to the terminal; the first parameter represents the minimum quality requirement for the terminal to receive MBS; the sent first parameter meets one of the following conditions:

[0229] The first parameter is for one MBS;

[0230] The first parameter is for a TMGI;

[0231] The first parameter is common to a group of MBSs or all MBSs;

[0232] Step 202: The terminal performs cell reselection using the received first parameter.

[0233] Here, it should be noted that the specific processing procedures of the network device and the terminal have been described in detail above and will not be repeated here.

[0234] In a cell reselection method provided in an embodiment of the present application, a network device sends a first parameter to a terminal; the first parameter represents a minimum quality requirement for the terminal to receive an MBS; the sent first parameter satisfies one of the following conditions: the first parameter is for a single MBS; the first parameter is for a single TMGI; the first parameter is common to a group of MBSs or all MBSs; the terminal uses the received first parameter to perform cell reselection, and the network device indicates to the terminal the minimum quality requirement for the terminal to receive the MBS, and the minimum quality requirement for the received MBS can reflect the QoS requirements or priorities of different MBS services, thereby adopting a new reselection criterion to implement cell reselection based on the MBS that the terminal is interested in or wants to receive. This allows the terminal to receive the MBS service of interest or desire in an idle or inactive state, or to receive the MBS service as soon as possible after entering a connected state, while also ensuring that the quality of the cell reselected by the terminal is sufficient to meet the basic requirements for receiving the MBS service.

[0235] For the second method, the embodiment of the present application provides a cell reselection method, which is applied to a terminal, such as Figure 3 As shown, the method includes:

[0236] Step 301: Receive a fifth parameter; the fifth parameter represents an offset of the MBS;

[0237] Step 302: Determine R values ​​of reselection rankings of the serving cell and / or neighboring cells using the received fifth parameter;

[0238] Step 303: Perform cell reselection using the R values ​​of the reselection rankings of the serving cell and the neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0239] The fifth parameter is an offset for an MBS;

[0240] The fifth parameter is an offset for a TMGI;

[0241] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0242] In one embodiment, the terminal may receive the fifth parameter via a system message.

[0243] In actual application, in step 303, the terminal may select a cell with a high R value (ie, select a cell with the highest reselection ranking) to perform cell reselection.

[0244] In actual application, the R value may be used directly to perform cell reselection, that is, by executing steps 301 to 303 to perform cell reselection; the cell reselection may also be performed in combination with the MBS quality requirement.

[0245] Based on this, in one embodiment, the method may further include:

[0246] receiving a first parameter; wherein the first parameter represents a minimum quality requirement for a terminal to receive MBS;

[0247] The cell reselection is performed by utilizing the R values ​​of the reselection rankings of the serving cell and the neighboring cell in combination with the first parameter.

[0248] In actual application, the first parameter satisfies one of the following conditions:

[0249] The first parameter is for one MBS;

[0250] The first parameter is for a TMGI;

[0251] The first parameter is common to a group of MBSs or all MBSs.

[0252] In one embodiment, performing cell reselection by using the R values ​​of the reselection rankings of the serving cell and the neighboring cell in combination with the received first parameter includes:

[0253] Determine a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0254] A cell with a high R value (ie, a cell with the highest reselection ranking) is selected from the cells whose cell quality meets the first parameter requirement, and cell reselection is performed.

[0255] In one embodiment, the terminal may receive the first parameter via a system message.

[0256] It should be noted that: in the second method, the terminal determines the cell whose cell quality meets the first parameter requirements, determines the R value, and uses the R value to perform cell reselection. The specific processing process can refer to the description in the first method and will not be repeated here.

[0257] Accordingly, an embodiment of the present application further provides a cell reselection method, which is applied to a network device (specifically, a base station), including:

[0258] Sending a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; the fifth parameter is used by the terminal to determine an R value for a reselection ranking of a serving cell and / or a neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0259] The fifth parameter is an offset for an MBS;

[0260] The fifth parameter is an offset for a TMGI;

[0261] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0262] In one embodiment, the fifth parameter is sent to the terminal via a system message.

[0263] In one embodiment, the method may further include:

[0264] A first parameter is sent to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive MBS; the first parameter is used for the terminal to perform cell reselection.

[0265] In one embodiment, the first parameter sent satisfies one of the following conditions:

[0266] The first parameter is for one MBS;

[0267] The first parameter is for a TMGI;

[0268] The first parameter is common to a group of MBSs or all MBSs.

[0269] In one embodiment, the first parameter is sent to the terminal via a system message.

[0270] The embodiment of the present application provides a cell reselection method, such as Figure 4As shown, the method includes:

[0271] Step 401: The network device sends a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; the fifth parameter is used by the terminal to determine an R value for reselection ranking of a serving cell and / or a neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0272] The fifth parameter is an offset for an MBS;

[0273] The fifth parameter is an offset for a TMGI;

[0274] The fifth parameter is an offset common to a group of MBSs or all MBSs;

[0275] Step 402: The terminal determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using the received fifth parameter;

[0276] Step 403: The terminal performs cell reselection using the R values ​​of the reselection rankings of the serving cell and the neighboring cell.

[0277] Here, it should be noted that the specific processing procedures of the network device and the terminal have been described in detail above and will not be repeated here.

[0278] In a cell reselection method provided in an embodiment of the present application, a network device sends a fifth parameter to a terminal; the fifth parameter represents an offset of an MBS; wherein the fifth parameter satisfies one of the following conditions: the fifth parameter is an offset for an MBS; the fifth parameter is an offset for a TMGI; the fifth parameter is an offset common to a group of MBSs or all MBSs; the terminal uses the received fifth parameter to determine an R value for a reselection ranking of a serving cell and / or a neighboring cell; and performs cell reselection using the R values ​​of the reselection rankings of the serving cell and the neighboring cell; the terminal uses the received fifth parameter to determine the R value for the reselection ranking of the serving cell and / or the neighboring cell, and implements cell reselection based on an MBS of interest or intended reception by the terminal by defining a new R value calculation method and using an MBS offset that reflects the QoS requirements or priorities of different MBS services. This enables the terminal to receive the MBS service of interest or intended reception in an idle or inactive state, or to receive the MBS service as soon as possible after entering a connected state, while also ensuring that the quality of the cell reselected by the terminal satisfies the basic requirements for receiving the MBS service.

[0279] For the first cell reselection method described above, in order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application further provides a cell reselection device, which is set on the terminal, such as Figure 5 As shown, the device includes:

[0280] The first receiving unit 501 is configured to receive a first parameter, wherein the first parameter represents a minimum quality requirement for a terminal to receive MBS;

[0281] The first processing unit 502 is configured to perform cell reselection using the received first parameter, wherein the first parameter satisfies one of the following conditions:

[0282] The first parameter is for one MBS;

[0283] The first parameter is for a TMGI;

[0284] The first parameter is common to a group of MBSs or all MBSs.

[0285] In one embodiment, the first processing unit 502 is specifically configured to:

[0286] Determine the reselection ranking of the serving cell and neighboring cells;

[0287] Cell reselection is performed using the first parameter and the reselection rankings of the serving cell and the neighboring cell.

[0288] In one embodiment, the first processing unit 502 determines a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0289] Select a cell with the highest reselection ranking from the cells whose cell quality meets the first parameter requirement, and perform cell reselection.

[0290] In one embodiment, the first processing unit 502 is specifically configured to:

[0291] Determine the R value of the reselection ranking of the serving cell and the neighboring cell.

[0292] In one embodiment, the first processing unit 502 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using a fifth parameter; the fifth parameter represents the offset of the MBS.

[0293] In one embodiment, when the fifth parameter is an offset for an MBS, the first processing unit 502 uses the offsets of M MBSs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive.

[0294] In one embodiment, when the fifth parameter is an offset for a TMGI, the first processing unit 502 uses the offsets of N TMGIs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to the MBS that the terminal is interested in or wants to receive.

[0295] In one embodiment, when the fifth parameter is an offset shared by all MBSs, the first processing unit 502 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offsets of Q MBSs; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive.

[0296] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the first processing unit 502 uses the offsets of P MBSs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; P represents the number of MBSs that the terminal is interested in or wants to receive.

[0297] In one embodiment, when the fifth parameter is an offset for an MBS, the first processing unit 502 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of the MBS that meets the fourth condition.

[0298] In one embodiment, when the fifth parameter is an offset for a TMGI, the first processing unit 502 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of a TMGI that meets the fifth condition.

[0299] In one embodiment, when the fifth parameter is an offset common to all MBSs, the first processing unit 502 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of one MBS.

[0300] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the first processing unit 502 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of an MBS that meets the seventh condition.

[0301] In one embodiment, the first receiving unit 501 is further configured to receive the fifth parameter.

[0302] In one embodiment, the first receiving unit 501 receives the fifth parameter via a system message.

[0303] In one embodiment, the first receiving unit 501 receives the first parameter via a system message.

[0304] In actual application, the first receiving unit 501 can be implemented by a communication interface in the cell reselection device; the first processing unit 502 can be implemented by a processor in the cell reselection device in combination with the communication interface.

[0305] For the first cell reselection method described above, in order to implement the method on the network device side of the embodiment of the present application, the embodiment of the present application further provides a cell reselection device, which is set on the network device, such as Figure 6 As shown, the device includes:

[0306] The first sending unit 601 is configured to send a first parameter to a terminal; the first parameter represents a minimum quality requirement for the terminal to receive MBS; and the sent first parameter satisfies one of the following conditions:

[0307] The first parameter is for one MBS;

[0308] The first parameter is for a TMGI;

[0309] The first parameter is common to a group of MBSs or all MBSs.

[0310] In one embodiment, Figure 6 As shown, the apparatus may further include: a first determining unit 602, configured to determine a first parameter.

[0311] In one embodiment, the first sending unit 601 is further configured to send a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; and the fifth parameter is used by the terminal to determine an R value for reselection ranking of a serving cell and / or a neighboring cell.

[0312] The first determining unit 602 is further configured to determine a fifth parameter.

[0313] In one embodiment, the first sending unit 601 sends the fifth parameter to the terminal through a system message.

[0314] In one embodiment, the first sending unit 601 sends the first parameter to the terminal via a system message.

[0315] In actual application, the first sending unit 601 can be implemented by a communication interface in the cell reselection device; the first determining unit 602 can be implemented by a processor in the cell reselection device in combination with the communication interface.

[0316] For the second cell reselection method described above, in order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application further provides a cell reselection device, which is set on the terminal, such as Figure 7 As shown, the device includes:

[0317] The second receiving unit 701 is configured to receive a fifth parameter, wherein the fifth parameter represents an offset of the MBS;

[0318] The second processing unit 702 is configured to determine R values ​​of reselection rankings of the serving cell and / or the neighboring cell using the received fifth parameter; and perform cell reselection using the R values ​​of the reselection rankings of the serving cell and the neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0319] The fifth parameter is an offset for an MBS;

[0320] The fifth parameter is an offset for a TMGI;

[0321] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0322] In one embodiment, the second receiving unit 701 receives the fifth parameter via a system message.

[0323] In one embodiment, when the fifth parameter is an offset for an MBS, the second processing unit 702 uses the offsets of M MBSs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive.

[0324] In one embodiment, when the fifth parameter is an offset for a TMGI, the second processing unit 702 uses the offsets of N TMGIs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to the MBS that the terminal is interested in or wants to receive.

[0325] In one embodiment, when the fifth parameter is an offset shared by all MBSs, the second processing unit 702 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offsets of Q MBSs; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive.

[0326] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the second processing unit 702 uses the offsets of P MBSs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; P represents the number of MBSs that the terminal is interested in or wants to receive.

[0327] In one embodiment, when the fifth parameter is an offset for an MBS, the second processing unit 702 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of the MBS that meets the fourth condition.

[0328] In one embodiment, when the fifth parameter is an offset for a TMGI, the second processing unit 702 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of a TMGI that meets the fifth condition.

[0329] In one embodiment, when the fifth parameter is an offset common to all MBSs, the second processing unit 702 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of one MBS.

[0330] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the second processing unit 702 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of an MBS that meets the seventh condition.

[0331] In one embodiment, the second receiving unit 701 is further configured to receive a first parameter; the first parameter represents a minimum quality requirement for the terminal to receive MBS;

[0332] The second processing unit 702 is configured to perform cell reselection by utilizing the R values ​​of the reselection rankings of the serving cell and the neighboring cell in combination with the received first parameter.

[0333] In one embodiment, the second processing unit 702 is configured to:

[0334] Determine a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0335] A cell with a high R value is selected from cells whose cell quality meets the first parameter requirement, and cell reselection is performed.

[0336] In one embodiment, the second receiving unit 701 receives the first parameter via a system message.

[0337] In actual application, the second receiving unit 701 can be implemented by a communication interface in the cell reselection device; the second processing unit 702 can be implemented by a processor in the cell reselection device in combination with the communication interface.

[0338] For the second cell reselection method described above, in order to implement the method on the network device side of the embodiment of the present application, the embodiment of the present application further provides a cell reselection device, which is set on the network device, such as Figure 8 As shown, the device includes:

[0339] The second sending unit 801 is configured to send a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; the fifth parameter is used by the terminal to determine an R value for reselection ranking of a serving cell and / or a neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0340] The fifth parameter is for one MBS;

[0341] The fifth parameter is for a TMGI;

[0342] The fifth parameter is common to a group of MBSs or all MBSs.

[0343] In one embodiment, Figure 8 As shown, the apparatus may further include: a second determining unit 802, configured to determine a fifth parameter.

[0344] In one embodiment, the second sending unit 801 sends the fifth parameter to the terminal through a system message.

[0345] In one embodiment, the second sending unit 801 is further configured to send a first parameter to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive MBS; and the first parameter is used for the terminal to perform cell reselection.

[0346] In one embodiment, the second determining unit 802 is further configured to determine the first parameter.

[0347] In one embodiment, the second sending unit 801 sends the first parameter to the terminal through a system message.

[0348] In actual application, the second sending unit 801 can be implemented by a communication interface in the cell reselection device; the second determining unit 802 can be implemented by a processor in the cell reselection device in combination with the communication interface.

[0349] It should be noted that the cell reselection apparatus provided in the above embodiment is merely illustrated by the division of the above program modules when performing cell reselection. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the apparatus can be divided into different program modules to complete all or part of the above-described processing. Furthermore, the cell reselection apparatus provided in the above embodiment and the cell reselection method embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0350] Based on the hardware implementation of the above program modules, and in order to implement the method of the terminal side of the embodiment of the present application, the embodiment of the present application also provides a terminal, such as Figure 9 As shown, the terminal 900 includes:

[0351] The first communication interface 901 is capable of exchanging information with network devices;

[0352] The first processor 902 is connected to the first communication interface 901 to implement information exchange with the network device and is used to execute the methods provided by one or more technical solutions on the terminal side when running a computer program. The computer program is stored in the first memory 903.

[0353] Specifically, for the first cell reselection mode described above, the first communication interface 901 is configured to receive a first parameter; the first parameter represents a minimum quality requirement for a terminal to receive an MBS; and the first processor 902 is configured to perform cell reselection using the received first parameter; wherein the first parameter satisfies one of the following conditions:

[0354] The first parameter is for one MBS;

[0355] The first parameter is for a TMGI;

[0356] The first parameter is common to a group of MBSs or all MBSs.

[0357] In one embodiment, the first processor 902 is specifically configured to:

[0358] Determine the reselection ranking of the serving cell and neighboring cells;

[0359] Cell reselection is performed using the first parameter and the reselection rankings of the serving cell and the neighboring cell.

[0360] In one embodiment, the first processor 902 determines a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0361] Select a cell with the highest reselection ranking from the cells whose cell quality meets the first parameter requirement, and perform cell reselection.

[0362] In one embodiment, the first processor 902 is specifically configured to:

[0363] Determine the R value of the reselection ranking of the serving cell and the neighboring cell.

[0364] In one embodiment, the first processor 902 determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using a fifth parameter; the fifth parameter represents an offset of an MBS.

[0365] In one embodiment, when the fifth parameter is an offset for an MBS, the first processor 902 uses the offsets of M MBSs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive.

[0366] In one embodiment, when the fifth parameter is an offset for a TMGI, the first processor 902 uses the offsets of N TMGIs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to the MBS that the terminal is interested in or wants to receive.

[0367] In one embodiment, when the fifth parameter is an offset shared by all MBSs, the first processor 902 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offsets of Q MBSs; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive.

[0368] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the first processor 902 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offsets of P MBSs; P represents the number of MBSs that the terminal is interested in or wants to receive.

[0369] In one embodiment, when the fifth parameter is an offset for an MBS, the first processor 902 determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using the offset of an MBS that satisfies the fourth condition.

[0370] In one embodiment, when the fifth parameter is an offset for a TMGI, the first processor 902 determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using the offset of a TMGI that satisfies the fifth condition.

[0371] In one embodiment, when the fifth parameter is an offset common to all MBSs, the first processor 902 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of one MBS.

[0372] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the first processor 902 determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using the offset of an MBS that meets the seventh condition.

[0373] In one embodiment, the first communication interface 901 is further configured to receive the fifth parameter.

[0374] In one embodiment, the first communication interface 901 receives the fifth parameter via a system message.

[0375] In one embodiment, the first communication interface 901 receives the first parameter through a system message.

[0376] For the second cell reselection method described above, the first communication interface 901 is configured to receive a fifth parameter; the fifth parameter represents an offset of the MBS; the first processor 902 is configured to determine an R value of a reselection ranking of a serving cell and / or a neighboring cell using the received fifth parameter; and perform cell reselection using the R values ​​of the reselection rankings of the serving cell and the neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0377] The fifth parameter is an offset for an MBS;

[0378] The fifth parameter is an offset for a TMGI;

[0379] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0380] In which, when the fifth parameter is an offset for an MBS, the first processor 902 uses the offsets of M MBSs to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive.

[0381] In one embodiment, when the fifth parameter is an offset for a TMGI, the first processor 902 uses the offsets of N TMGIs to determine the R value of the reselection ranking of the serving cell and the neighboring cell; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to the MBS that the terminal is interested in or wants to receive.

[0382] In one embodiment, when the fifth parameter is an offset shared by all MBSs, the first processor 902 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offsets of Q MBSs; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive.

[0383] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the first processor 902 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offsets of P MBSs; P represents the number of MBSs that the terminal is interested in or wants to receive.

[0384] In one embodiment, when the fifth parameter is an offset for an MBS, the first processor 902 determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using the offset of an MBS that satisfies the fourth condition.

[0385] In one embodiment, when the fifth parameter is an offset for a TMGI, the first processor 902 determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using the offset of a TMGI that satisfies the fifth condition.

[0386] In one embodiment, when the fifth parameter is an offset common to all MBSs, the first processor 902 determines the R value of the reselection ranking of the serving cell and / or the neighboring cell using the offset of one MBS.

[0387] In one embodiment, when the fifth parameter is an offset for a group of MBSs, the first processor 902 determines an R value of a reselection ranking of a serving cell and / or a neighboring cell using the offset of an MBS that meets the seventh condition.

[0388] In one embodiment, the first communication interface 901 receives the fifth parameter through a system message.

[0389] In one embodiment, the first communication interface 901 is further configured to receive a first parameter; the first parameter represents a minimum quality requirement for the terminal to receive MBS;

[0390] The first processor 902 is configured to perform cell reselection by using the R values ​​of the reselection rankings of the serving cell and the neighboring cell in combination with the received first parameter.

[0391] In one embodiment, the first processor 902 is configured to:

[0392] Determine a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells;

[0393] A cell with a high R value is selected from cells whose cell quality meets the first parameter requirement, and cell reselection is performed.

[0394] In one embodiment, the first communication interface 901 receives the first parameter through a system message.

[0395] It should be noted that the specific processing process of the first processor 902 and the first communication interface 901 can be understood by referring to the above method.

[0396] Of course, in actual application, the various components in the terminal 900 are coupled together through the bus system 904. It is understood that the bus system 904 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 904 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 9 Various buses are labeled as bus system 904.

[0397] The first memory 903 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 900. Examples of such data include: any computer program used to operate on the terminal 900.

[0398] The methods disclosed in the above embodiments of the present application can be applied to the first processor 902 or implemented by the first processor 902. The first processor 902 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the first processor 902 or by instructions in the form of software. The above first processor 902 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 902 can 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, etc. The steps of the methods disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium located in the first memory 903. The first processor 902 reads the information in the first memory 903 and completes the steps of the above method in combination with its hardware.

[0399] In an exemplary embodiment, the terminal 900 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to execute the aforementioned method.

[0400] Based on the hardware implementation of the above program modules, and in order to implement the method of the network device side of the embodiment of the present application, the embodiment of the present application also provides a network device, such as Figure 10 As shown, the network device 1000 includes:

[0401] The second communication interface 1001 is capable of exchanging information with the terminal;

[0402] The second processor 1002 is connected to the second communication interface 1001 to implement information exchange with the terminal and is used to execute the method provided by one or more technical solutions on the network device side when running a computer program. The computer program is stored in the second memory 1003.

[0403] Specifically, in one embodiment, the second communication interface 1001 is used to send a first parameter to the terminal; the second communication interface is used to send the first parameter to the terminal; the first parameter represents the minimum quality requirement for the terminal to receive MBS; the sent first parameter meets one of the following conditions:

[0404] The first parameter is for one MBS;

[0405] The first parameter is for a TMGI;

[0406] The first parameter is common to a group of MBSs or all MBSs.

[0407] In one embodiment, the second processor 1002 is configured to determine a first parameter.

[0408] In one embodiment, the second communication interface 1001 sends the first parameter to the terminal through a system message.

[0409] In one embodiment, the second communication interface 1001 is configured to send a fifth parameter to the terminal; the fifth parameter represents an offset of the MBS; the fifth parameter is used by the terminal to determine an R value for reselection rankings of a serving cell and a neighboring cell; wherein the fifth parameter satisfies one of the following conditions:

[0410] The fifth parameter is an offset for an MBS;

[0411] The fifth parameter is an offset for a TMGI;

[0412] The fifth parameter is an offset common to a group of MBSs or all MBSs.

[0413] In one embodiment, the second processor 1002 is configured to determine a fifth parameter.

[0414] In one embodiment, the second communication interface 1001 sends the fifth parameter to the terminal through a system message.

[0415] It should be noted that the specific processing process of the second communication interface 1001 and the second processor 1002 can be understood by referring to the above method.

[0416] Of course, in actual application, the various components in the network device 1000 are coupled together through the bus system 1004. It is understood that the bus system 1004 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1004 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 10 Various buses are labeled as bus system 1004.

[0417] The second memory 1003 in the embodiment of the present application is used to store various types of data to support the operation of the network device 1000. Examples of such data include: any computer program used to operate on the network device 1000.

[0418] The methods disclosed in the above embodiments of the present application can be applied to or implemented by the second processor 1002. The second processor 1002 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits or software instructions in the second processor 1002. The above second processor 1002 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The second processor 1002 can 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 can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 1003. The second processor 1002 reads the information in the second memory 1003 and, in conjunction with its hardware, completes the steps of the above method.

[0419] In an exemplary embodiment, the network device 1000 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[0420] It can be understood that the memory (first memory 903, second memory 1003) of the embodiment of the present application can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a magnetic disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0421] In order to implement the method provided in the embodiment of the present application, the embodiment of the present application also provides a cell reselection system, such as Figure 11 As shown, the system includes: network equipment 1101 and terminal 1102.

[0422] Here, it should be noted that the specific processing procedures of the network device 1101 and the terminal 1102 have been described in detail above and will not be repeated here.

[0423] In an exemplary embodiment, the present application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, which includes, for example, a first memory 903 storing a computer program. The computer program can be executed by the first processor 902 of the terminal 900 to complete the steps of the aforementioned terminal-side method. For another example, the present application also includes a second memory 1003 storing a computer program. The computer program can be executed by the second processor 1002 of the network device 1000 to complete the steps of the aforementioned network device-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface storage, optical disk, or CD-ROM.

[0424] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0425] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0426] The above description is merely a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. A cell reselection method, characterized in that: Applied to terminals, including: receiving a first parameter; wherein the first parameter represents a minimum quality requirement for a terminal to receive an MBS in a cell supporting a multicast and broadcast service MBS; performing cell reselection by using the received first parameter; if there is no cell whose cell quality meets the requirement of the first parameter and supports all MBSs of interest to the terminal, selecting a cell whose cell quality meets the requirement of the first parameter and supports the most types of MBSs of interest to the terminal for cell reselection; wherein the first parameter satisfies one of the following conditions: The first parameter is for one MBS; The first parameter is for a temporary mobility group identifier TMGI; The first parameter is common to a group of MBSs or all MBSs; first parameters of different granularities reflect the QoS requirements or priorities of different MBS services.

2. The method according to claim 1, characterized in that The step of performing cell reselection by using the received first parameter includes: Determine the reselection ranking of the serving cell and the neighboring cells; The cell reselection is performed using the first parameter and the reselection rankings of the serving cell and the neighboring cell.

3. The method according to claim 2, characterized in that The performing cell reselection by using the first parameter and the reselection rankings of the serving cell and the neighboring cell includes: Determine a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells; Select a cell with the highest reselection ranking from the cells whose cell quality meets the first parameter requirement, and perform cell reselection.

4. The method according to claim 2, characterized in that: The determining of the reselection ranking of the serving cell and the neighboring cell includes: Determine the R value of the reselection ranking of the serving cell and the neighboring cell.

5. The method according to claim 4, characterized in that The R value of the reselection ranking of the serving cell and / or the neighboring cell is determined by using the fifth parameter; the fifth parameter represents the offset of the MBS.

6. The method according to claim 5, characterized in that The fifth parameter satisfies one of the following conditions: The fifth parameter is an offset for an MBS; The fifth parameter is an offset for a TMGI; The fifth parameter is an offset common to a group of MBSs or all MBSs.

7. The method according to claim 6, characterized in that The using the fifth parameter to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell includes one of the following: In the case where the fifth parameter is an offset for one MBS, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of M MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using a maximum value of the offsets of the M MBSs; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive; In the case where the fifth parameter is an offset for a TMGI, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of N TMGIs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using a maximum value of the offsets of the N TMGIs; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to the MBS that the terminal is interested in or wants to receive; In the case where the fifth parameter is an offset shared by all MBSs, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of Q MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offset of one MBS; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive; In the case where the fifth parameter is an offset for a group of MBSs, the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the offsets of P MBSs; or the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the maximum value of the offsets of the P MBSs; P is an integer greater than or equal to 1; P represents the number of MBSs that the terminal is interested in or wants to receive.

8. A cell reselection method, characterized in that: Applied to network equipment, including: A first parameter is sent to the terminal; the first parameter represents the minimum quality requirement for the terminal to receive the MBS in a cell supporting the MBS, and is used for the terminal to select a cell whose cell quality meets the first parameter requirement and supports the most types of MBSs of interest to the terminal for cell reselection when there is no cell whose cell quality meets the first parameter requirement and supports all MBSs of interest to the terminal; the sent first parameter satisfies one of the following conditions: The first parameter is for one MBS; The first parameter is for a TMGI; The first parameter is common to a group of MBSs or all MBSs; first parameters of different granularities reflect QoS requirements or priorities of different MBS services.

9. The method according to claim 8, characterized in that The method further comprises: A fifth parameter is sent to the terminal; the fifth parameter represents an offset of the MBS.

10. The method according to claim 9, characterized in that The fifth parameter satisfies one of the following conditions: The fifth parameter is an offset for an MBS; The fifth parameter is an offset for a TMGI; The fifth parameter is an offset common to a group of MBSs or all MBSs.

11. A cell reselection method, characterized in that: Applied to terminals, including: receiving a first parameter; wherein the first parameter represents a minimum quality requirement for a terminal to receive MBS in a cell supporting MBS, and first parameters of different granularities reflect QoS requirements or priorities of different MBS services; receiving a fifth parameter; the fifth parameter representing an offset of the MBS of the terminal in a cell supporting the MBS; Determine an R value of a reselection ranking of a serving cell and / or a neighboring cell using the received fifth parameter; performing cell reselection by using the R values ​​of the reselection rankings of the serving cell and the neighboring cell in combination with the received first parameter; in the case where there is no cell whose cell quality meets the requirements of the first parameter and supports all MBSs of interest to the terminal, selecting the cell with the highest R value for cell reselection among the cells whose cell quality meets the requirements of the first parameter and supports the MBS with the highest priority among the MBSs of interest to the terminal; wherein the fifth parameter satisfies one of the following conditions: The fifth parameter is an offset for an MBS; The fifth parameter is an offset for a TMGI; The fifth parameter is an offset common to a group of MBSs or all MBSs.

12. The method according to claim 11, characterized in that The using the fifth parameter to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell includes one of the following: In the case where the fifth parameter is an offset for one MBS, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of M MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using a maximum value of the offsets of the M MBSs; M is an integer greater than or equal to 1; M represents the number of MBSs that the terminal is interested in or wants to receive; In the case where the fifth parameter is an offset for a TMGI, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of N TMGIs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using a maximum value of the offsets of the N TMGIs; N is an integer greater than or equal to 1; N represents the number of TMGIs corresponding to the MBS that the terminal is interested in or wants to receive; In the case where the fifth parameter is an offset shared by all MBSs, an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offsets of Q MBSs; or an R value of a reselection ranking of a serving cell and / or a neighboring cell is determined using the offset of one MBS; Q is an integer greater than or equal to 1; Q represents the number of MBS services that the terminal is interested in or wants to receive; In the case where the fifth parameter is an offset for a group of MBSs, the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the offsets of P MBSs; or the R value of the reselection ranking of the serving cell and / or the neighboring cell is determined using the maximum value of the offsets of the P MBSs; P is an integer greater than or equal to 1; P represents the number of MBSs that the terminal is interested in or wants to receive.

13. The method according to claim 11, characterized in that The first parameter satisfies one of the following conditions: The first parameter is for one MBS; The first parameter is for a TMGI; The first parameter is common to a group of MBSs or all MBSs.

14. The method according to claim 11, characterized in that The method of performing cell reselection by using the R value of the reselection ranking of the serving cell and the neighboring cell in combination with the received first parameter includes: Determine a cell whose cell quality meets the first parameter requirement from the serving cell and the neighboring cells; A cell with a high R value is selected from cells whose cell quality meets the first parameter requirement, and cell reselection is performed.

15. A cell reselection method, characterized in that: Applied to network equipment, including: Sending a first parameter to the terminal; the first parameter represents the minimum quality requirement for the terminal to receive MBS in a cell supporting MBS, and the first parameters of different granularities reflect the QoS requirements or priorities of different MBS services; A fifth parameter is sent to the terminal; the fifth parameter represents the offset of the MBS of the terminal in the cell supporting the MBS, and is used by the terminal to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; the R value of the reselection ranking of the serving cell and / or the neighboring cell and the first parameter are used by the terminal to select the cell with the highest R value for cell reselection when there is no cell whose cell quality meets the first parameter requirement and supports all MBSs of interest to the terminal, and the cell quality meets the first parameter requirement and supports the MBS with the highest priority among the MBSs of interest to the terminal; wherein the fifth parameter satisfies one of the following conditions: The fifth parameter is an offset for an MBS; The fifth parameter is an offset for a TMGI; The fifth parameter is an offset common to a group of MBSs or all MBSs.

16. The method according to claim 15, characterized in that The first parameter sent meets one of the following conditions: The first parameter is for one MBS; The first parameter is for a TMGI; The first parameter is common to a group of MBSs or all MBSs.

17. A terminal, characterized in that: include: A first communication interface and a first processor; wherein, The first communication interface is used to receive a first parameter; the first parameter represents a minimum quality requirement for a terminal to receive an MBS in a cell supporting the MBS; the first processor is used to use the first parameter to perform cell reselection; in the absence of a cell whose quality meets the first parameter requirement and supports all MBSs of interest to the terminal, select a cell whose quality meets the first parameter requirement and supports the most types of MBSs of interest to the terminal for cell reselection; wherein the first parameter satisfies one of the following conditions: The first parameter is for one MBS; The first parameter is for a TMGI; The first parameter is common to a group of MBSs or all MBSs; first parameters of different granularities reflect QoS requirements or priorities of different MBS services; or, The first communication interface is used to receive a first parameter and a fifth parameter; the first parameter represents the minimum quality requirement for the terminal to receive the MBS in the cell supporting the MBS, and the first parameters of different granularities reflect the QoS requirements or priorities of different MBS services; the fifth parameter represents the offset of the MBS of the terminal in the cell supporting the MBS; the first processor is used to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell using the received fifth parameter; perform cell reselection using the R value of the reselection ranking of the serving cell and the neighboring cell in combination with the received first parameter; in the case where there is no cell whose cell quality meets the first parameter requirement and supports all the MBSs of interest to the terminal, select the cell with the highest R value for cell reselection in the cell whose cell quality meets the first parameter requirement and supports the MBS with the highest priority among the MBSs of interest to the terminal; wherein the fifth parameter satisfies one of the following conditions: The fifth parameter is an offset for an MBS; The fifth parameter is an offset for a TMGI; The fifth parameter is an offset common to a group of MBSs or all MBSs.

18. A network device, characterized in that: include: A second communication interface and a second processor; wherein, The second communication interface is used to send a first parameter to the terminal; the first parameter represents a minimum quality requirement for the terminal to receive the MBS in a cell supporting the MBS, and is used for the terminal to select a cell whose cell quality meets the first parameter requirement and supports the most types of MBSs of interest to the terminal for cell reselection when there is no cell whose cell quality meets the first parameter requirement and supports all MBSs of interest to the terminal; the sent first parameter satisfies one of the following conditions: The first parameter is for one MBS; The first parameter is for a TMGI; The first parameter is common to a group of MBSs or all MBSs; first parameters of different granularities reflect QoS requirements or priorities of different MBS services; or, The second communication interface is used to send a first parameter and a fifth parameter to the terminal; the first parameter represents the minimum quality requirement for the terminal to receive the MBS in the cell supporting the MBS, the first parameters of different granularities reflect the QoS requirements or priorities of different MBS services, the fifth parameter represents the offset of the MBS of the terminal in the cell supporting the MBS, and is used by the terminal to determine the R value of the reselection ranking of the serving cell and / or the neighboring cell; the R value of the reselection ranking of the serving cell and / or the neighboring cell and the first parameter are used by the terminal to select the cell with the highest R value for cell reselection when there is no cell whose cell quality meets the first parameter requirement and supports all the MBSs of interest to the terminal, and the cell quality meets the first parameter requirement and supports the MBS with the highest priority among the MBSs of interest to the terminal; wherein the fifth parameter satisfies one of the following conditions: The fifth parameter is an offset for an MBS; The fifth parameter is an offset for a TMGI; The fifth parameter is an offset common to a group of MBSs or all MBSs.

19. A terminal, characterized in that: include: a first processor and a first memory for storing a computer program executable on the processor, Wherein, when the first processor is used to run the computer program, it executes the steps of the method described in any one of claims 1 to 7, or executes the steps of the method described in any one of claims 11 to 14.

20. A network device, characterized in that: include: a second processor and a second memory for storing a computer program executable on the processor, Wherein, when the second processor is used to run the computer program, it executes the steps of the method described in any one of claims 8 to 10, or implements the steps of the method described in any one of claims 15 to 16.

21. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the steps of the method described in any one of claims 1 to 7, or implements the steps of the method described in any one of claims 8 to 10, or implements the steps of the method described in any one of claims 11 to 14, or implements the steps of the method described in any one of claims 15 to 16.

Images