Information Transmission Method, Apparatus, Terminal Device and Network Device

Abstract

The present invention provides an information transmission method, apparatus, terminal device and network device, relating to the field of communication technologies. The method includes: a terminal device determines a first identifier, where the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a paging occasion (PO), and the number of POs corresponding to a paging early indication (PEI); the terminal device receives or detects a PEI sent by a network device, where the PEI is used to indicate the paging situation of the terminal device, and the PEI is related to the first identifier. The present invention can determine different PEIs for different subgroups and is beneficial to reducing the power consumption of the terminal device.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an information transmission method, device, terminal equipment and network equipment. Background Art

[0002] In the fifth generation mobile communication technology (5G) new radio (NR) system, since it supports larger bandwidth, higher throughput, more complex services and more complex processing technologies to match them, the power saving design of terminal equipment (or UE) becomes very necessary.

[0003] In order to reduce the power consumption of terminal devices, a paging early indication (PEI) can be used in the Radio Resource Control-Idle (RRC Idle) state to indicate whether to monitor the physical downlink control channel (PDCCH) for paging of scheduled paging messages. Based on the consideration of power saving of terminal devices, the paging message reception of terminal devices follows the discontinuous reception (DRX) principle, and the terminal devices monitor a paging occasion (PO) in each DRX cycle. The terminal devices on a PO can be divided into n sub-groups, and the network device can indicate the paging status of the terminal devices in the sub-group through PEI, so that the terminal devices in the sub-group without paging can enter a low power consumption or sleep state without receiving the paging message. When PEI supports sub-group division, terminal devices in different sub-groups should determine different PEIs, so that different PEIs can be used to indicate whether different sub-group terminal devices have paging, so as to reduce the power consumption of terminal devices. However, there is currently no solution for determining different PEIs for different sub-groups. Summary of the invention

[0004] The present invention provides an information transmission method, device, terminal equipment and network equipment, which solves the problem that there is currently no solution for determining different PEIs for different sub-groups.

[0005] An embodiment of the present invention provides an information transmission method, including:

[0006] The terminal device determines a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a PO number corresponding to a paging advance indication PEI;

[0007] The terminal device receives or detects the PEI sent by the network device; wherein the PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier.

[0008] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0009] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0010] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0011] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0012] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0013] Optionally, when the PEI is a first type PEI, the terminal device determines the first identifier, including:

[0014] If the number of POs corresponding to a PEI is 1, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device;

[0015] If the number of POs corresponding to one PEI is greater than 1, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0016] Optionally, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, including:

[0017] The terminal device determines that the first identifier is the subgroup identifier corresponding to the terminal device.

[0018] Optionally, when the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0019] Wherein, Y is the first identifier;

[0020] A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs;

[0021] M1 is related to the subgroup identifier corresponding to the terminal device.

[0022] Optionally, when the PEI is a second type PEI, the terminal device determines the first identifier, including:

[0023] The terminal device determines the first identifier according to G1;

[0024] or,

[0025] The terminal device determines the first identifier according to the G1 and the G2;

[0026] or,

[0027] The terminal device determines the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of the terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of the terminal devices corresponding to G22 subgroups, 1<G21<G22<G1;

[0028] or,

[0029] The terminal device determines the first identifier according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0030] Optionally, when the terminal device determines the first identifier according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0031] When the terminal device determines the first identifier according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0032] When the terminal device determines the first identifier according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0033] When the terminal device determines the first identifier based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0034] Optionally, when the PEI is a third type PEI, the terminal device determines the first identifier, including:

[0035] The terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0036] or,

[0037] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0038] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0039] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the terminal device determines the first identifier based on the subgroup identifier corresponding to the terminal device, G1, G21 and G22; wherein 1<G21<G22<G1.

[0040] Optionally, when the terminal device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0041] When the terminal device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0042] When the terminal device determines the first identifier based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0043] Optionally, when the PEI is a fourth type PEI, the terminal device determines the first identifier, including:

[0044] The terminal device determines the first identifier according to the N1 and the G1.

[0045] Optionally, when the terminal device determines the first identifier according to the N1 and the G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0046] Wherein, Y is the first identifier, and N0 is a positive integer.

[0047] Optionally, the method further comprises:

[0048] The terminal device determines the first PO identifier according to the paging parameter;

[0049] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0050] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0051] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0052] Optionally, the terminal device receives or detects the PEI sent by the network device, including:

[0053] The terminal device receives or detects the PEI sent by the network device on the time-frequency resources of the PEI.

[0054] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0055] The terminal device receives or detects the PEI sent by the network device, including:

[0056] The terminal device receives or detects the first PEI sent by the network device on the first time-frequency resource;

[0057] The terminal device receives or detects the second PEI sent by the network device on the second time-frequency resource.

[0058] Optionally, the method further comprises:

[0059] The terminal device receives a first signaling sent by a network device;

[0060] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0061] The embodiment of the present invention further provides an information transmission device, including a memory, a transceiver, and a processor;

[0062] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0063] Determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a paging advance indication PEI corresponding to a PO number;

[0064] Receive or detect a PEI sent by a network device; wherein the PEI is used to indicate a paging status of the terminal device, and the PEI is related to the first identifier.

[0065] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0066] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0067] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0068] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0069] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0070] Optionally, when the PEI is a first type PEI, the processor is configured to read a computer program in the memory and perform the following operations:

[0071] If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device;

[0072] If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0073] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0074] Determine that the first identifier is the subgroup identifier corresponding to the terminal device.

[0075] Optionally, when the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0076] Wherein, Y is the first identifier;

[0077] A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs;

[0078] M1 is related to the subgroup identifier corresponding to the terminal device.

[0079] Optionally, when the PEI is a second type PEI, the processor is configured to read the computer program in the memory and perform the following operations:

[0080] Determine the first identifier according to G1;

[0081] or,

[0082] Determine the first identifier according to the G1 and the G2;

[0083] or,

[0084] Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups, 1<G21<G22<G1;

[0085] or,

[0086] The first identifier is determined according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0087] Optionally, when the first identifier is determined according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0088] When the first identifier is determined according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0089] In the case where the first identifier is determined according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0090] When the first identifier is determined based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0091] Optionally, when the PEI is a third type PEI, the processor is configured to read the computer program in the memory and perform the following operations:

[0092] determining the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0093] or,

[0094] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0095] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0096] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, G1, G21 and G22; wherein 1<G21<G22<G1.

[0097] Optionally, when the first identifier is determined according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0098] In the case where the first identifier is determined according to the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0099] When the first identifier is determined based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0100] Optionally, when the PEI is a fourth type PEI, the processor is configured to read the computer program in the memory and perform the following operations:

[0101] The first identifier is determined according to the N1 and the G1.

[0102] Optionally, when the first identifier is determined according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0103] Wherein, Y is the first identifier, and N0 is a positive integer.

[0104] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0105] Determine the first PO identifier according to the paging parameter;

[0106] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0107] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0108] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0109] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0110] The processor is configured to read the computer program in the memory and perform the following operations:

[0111] Receiving or detecting the first PEI sent by the network device on the first time-frequency resource;

[0112] The second PEI sent by the network device is received or detected on the second time-frequency resource.

[0113] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0114] Receiving a first signaling sent by a network device;

[0115] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0116] An embodiment of the present invention further provides a terminal device, including:

[0117] A first determining unit, configured to determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a number of subgroups corresponding to a paging opportunity PO, and a number of POs corresponding to a paging advance indication PEI;

[0118] A processing unit is used to receive or detect a PEI sent by a network device; wherein the PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier.

[0119] An embodiment of the present invention further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the information transmission method as described above.

[0120] The embodiment of the present invention also provides an information transmission method, including:

[0121] The network device determines a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a PO number corresponding to a paging advance indication PEI;

[0122] The network device sends a PEI to the terminal device; wherein the PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier.

[0123] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0124] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0125] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0126] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0127] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0128] Optionally, when the PEI is a first type PEI, the network device determines the first identifier, including:

[0129] If the number of POs corresponding to a PEI is 1, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device;

[0130] If the number of POs corresponding to one PEI is greater than 1, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0131] Optionally, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, including:

[0132] The network device determines that the first identifier is the subgroup identifier corresponding to the terminal device.

[0133] Optionally, when the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0134] Wherein, Y is the first identifier;

[0135] A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs;

[0136] M1 is related to the subgroup identifier corresponding to the terminal device.

[0137] Optionally, when the PEI is a second type PEI, the network device determines the first identifier, including:

[0138] The network device determines the first identifier according to G1;

[0139] or,

[0140] The network device determines the first identifier according to the G1 and the G2;

[0141] or,

[0142] The network device determines the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of the terminal devices corresponding to the G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of the terminal devices corresponding to the G22 subgroups, 1<G21<G22<G1;

[0143] or,

[0144] The network device determines the first identifier according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0145] Optionally, when the network device determines the first identifier according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0146] When the network device determines the first identifier according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0147] When the network device determines the first identifier according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0148] When the network device determines the first identifier according to the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0149] Optionally, when the PEI is a third type PEI, the network device determines the first identifier, including:

[0150] The network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0151] or,

[0152] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0153] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0154] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to the G22 subgroups, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1, the G21 and the G22;

[0155] Among them, 1<G21<G22<G1.

[0156] Optionally, when the network device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0157] When the network device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0158] When the network device determines the first identifier based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0159] Optionally, when the PEI is a fourth type PEI, the network device determines the first identifier, including:

[0160] The network device determines the first identifier according to the N1 and the G1.

[0161] Optionally, when the network device determines the first identifier according to the N1 and the G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0162] Wherein, Y is the first identifier, and N0 is a positive integer.

[0163] Optionally, the method further comprises:

[0164] The network device determines the first PO identifier according to the paging parameter;

[0165] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0166] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0167] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0168] Optionally, the network device sends the PEI to the terminal device, including:

[0169] The network device sends the PEI to the terminal device on the time-frequency resources of the PEI.

[0170] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0171] The network device sends the PEI to the terminal device, including:

[0172] The network device sends the first PEI to the terminal device on the first time-frequency resource;

[0173] The network device sends the second PEI to the terminal device on the second time-frequency resource.

[0174] Optionally, the method further comprises:

[0175] The network device sends a first signaling to the terminal device;

[0176] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0177] The embodiment of the present invention further provides an information transmission device, including a memory, a transceiver, and a processor;

[0178] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0179] Determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a paging advance indication PEI corresponding to a PO number;

[0180] Sending a PEI to a terminal device; wherein the PEI is used to indicate a paging status of the terminal device, and the PEI is related to the first identifier.

[0181] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0182] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0183] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0184] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0185] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0186] Optionally, when the PEI is a first type PEI, the processor is configured to read a computer program in the memory and perform the following operations:

[0187] If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device;

[0188] If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0189] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0190] Determine that the first identifier is the subgroup identifier corresponding to the terminal device.

[0191] Optionally, when the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0192] Wherein, Y is the first identifier;

[0193] A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs;

[0194] M1 is related to the subgroup identifier corresponding to the terminal device.

[0195] Optionally, when the PEI is a second type PEI, the processor is configured to read the computer program in the memory and perform the following operations:

[0196] Determine the first identifier according to G1;

[0197] or,

[0198] Determine the first identifier according to the G1 and the G2;

[0199] or,

[0200] Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups, 1<G21<G22<G1;

[0201] or,

[0202] The first identifier is determined according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0203] Optionally, when the first identifier is determined according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0204] When the first identifier is determined according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0205] In the case where the first identifier is determined according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0206] When the first identifier is determined based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0207] Optionally, when the PEI is a third type PEI, the processor is configured to read the computer program in the memory and perform the following operations:

[0208] Determine the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0209] or,

[0210] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0211] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0212] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to the G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1, the G21 and the G22;

[0213] Among them, 1<G21<G22<G1.

[0214] Optionally, when the first identifier is determined according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0215] In the case where the first identifier is determined according to the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0216] When the first identifier is determined based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0217] Optionally, when the PEI is a fourth type PEI, the processor is configured to read the computer program in the memory and perform the following operations:

[0218] The first identifier is determined according to the N1 and the G1.

[0219] Optionally, when the first identifier is determined according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0220] Wherein, Y is the first identifier, and N0 is a positive integer.

[0221] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0222] Determine the first PO identifier according to the paging parameter;

[0223] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0224] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0225] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0226] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0227] The processor is configured to read the computer program in the memory and perform the following operations:

[0228] Sending the first PEI to the terminal device on the first time-frequency resource;

[0229] The second PEI is sent to the terminal device on the second time-frequency resource.

[0230] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0231] Sending a first signaling to a terminal device;

[0232] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0233] An embodiment of the present invention further provides a network device, including:

[0234] A first determining unit, configured to determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to a terminal device, a number of subgroups corresponding to a paging opportunity PO, and a number of POs corresponding to a paging advance indication PEI;

[0235] The first sending unit is used to send a PEI to a terminal device; wherein the PEI is used to indicate a paging status of the terminal device, and the PEI is related to the first identifier.

[0236] Optionally, an embodiment of the present invention further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the information transmission method as described above.

[0237] The beneficial effect of the above technical solution of the present invention is that the terminal device determines the first identifier and receives or detects the paging status PEI sent by the network device to indicate the terminal device. Since the PEI is related to the first identifier, and the first identifier is related to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI, different PEIs can be determined for different subgroups, which is beneficial to reducing the power consumption of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0238] Figure 1 A schematic diagram showing the principle of PEI indication according to an embodiment of the present invention;

[0239] Figure 2 A schematic diagram showing the PO density of an embodiment of the present invention;

[0240] Figure 3 A flowchart showing an information transmission method at a terminal device side according to an embodiment of the present invention;

[0241] Figure 4 A block diagram showing a terminal device according to an embodiment of the present invention;

[0242] Figure 5 One of the block diagrams showing the information transmission device according to the embodiment of the present invention;

[0243] Figure 6 A flowchart showing an information transmission method on a network device side according to an embodiment of the present invention;

[0244] Figure 7 A block diagram showing a network device according to an embodiment of the present invention;

[0245] Figure 8 A second block diagram showing an information transmission device according to an embodiment of the present invention;

[0246] Fig. 9 A schematic diagram showing the relationship between multiple types of PEIs according to an embodiment of the present invention. DETAILED DESCRIPTION

[0247] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for clarity and brevity, the description of known functions and structures is omitted.

[0248] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0249] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0250] Additionally, the terms "system" and "network" are often used interchangeably herein.

[0251] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0252] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0253] In the embodiments of the present invention, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0254] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0255] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0256] In the NR system, the PEI is used in the RRC_IDLE state to indicate whether to monitor the paging PDCCH that schedules the paging message. The terminal device monitors the PEI before monitoring the paging message, thereby reducing the invalid paging message monitoring of the terminal device and further reducing the power consumption of the terminal device.

[0257] Using PEI in RRC_IDLE state can reduce the monitoring of invalid paging messages, thereby reducing the power consumption of terminal equipment, and experimental results also show that PEI indication can greatly reduce the power consumption of terminal equipment, for example, it can save 10% to 46% of power consumption. The basic principle of PEI indication is as follows Figure 1 Before receiving a paging message, the terminal device first receives the PEI. If the terminal device is instructed to receive a subsequent paging message, the terminal device continues to receive the paging message. Otherwise, the terminal device may enter a low power consumption or sleep state, thereby reducing the power consumption of the terminal device.

[0258] In the NR system, paging messages include paging PDCCH and paging physical downlink shared channel (PDSCH). Based on the consideration of terminal device power saving, the reception of paging messages for terminal devices in RRC_IDLE and RRC inactive (RRC_INACTIVE) states needs to follow the DRX principle. For example, the network device can configure the paging cycle, i.e., the DRX cycle, for the terminal device through high-level signaling. The terminal device monitors a PO in each DRX cycle. A PO is composed of a group of PDCCH monitoring occasions (MO), which can contain multiple time slots (such as subframes or orthogonal frequency division multiplex (OFDM) symbols), and the paging downlink control information (DCI) is sent on the PDCCH MO. A paging frame (PF) is a radio frame that can contain one or more POs or the starting point of a PO. In multi-beam operation, the terminal device assumes that all transmission beams repeatedly transmit the same paging messages and short messages. Selecting the appropriate beam and receiving paging and short messages is a terminal implementation issue.

[0259] The paging frame and paging opportunity can be determined according to the following rules:

[0260] The system frame number (SFN) corresponding to the paging frame is determined according to the following formula:

[0261] (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N)

[0262] Wherein, T represents the length of the DRX cycle, and its unit is radio frame, N represents the total number of PFs in each DRX cycle, PF_offset is used to determine the offset of the paging frame, UE_ID = 5G-S-TMSI mod1024, where 5G-S-TMSI is a 48-bit bit string.

[0263] The index of the paging opportunity is i_s, which can be determined according to the following formula:

[0264] i_s=floor(UE_ID / N)mod Ns

[0265] Wherein, Ns represents the total number of POs contained in each paging frame.

[0266] Since there are many terminal devices monitoring the paging DCI on the same PO, when a UE in the PO is paging, the base station needs to send PEI, which is used to indicate the presence of paging DCI on the PO. At this time, all UEs monitoring the PO will receive paging DCI and paging PDSCH. For those terminal devices that do not have paging, they can only determine that there is no paging and enter low power or sleep state after receiving paging DCI and paging PDSCH, which results in power consumption waste. Therefore, in order to reduce unnecessary power consumption waste of some terminal devices monitoring the same PO, sub-group division is introduced. For example, the terminal devices on a PO are divided into n sub-groups. When a terminal device in the PO is paging, the base station needs to send PEI to indicate that there is paging in the sub-group where the terminal device is located. At this time, all terminal devices in the same sub-group as the terminal device will receive paging DCI and paging PDSCH, while terminal devices in other sub-groups determine that there is no paging in their sub-group. Therefore, terminal devices in other sub-groups do not need to receive paging DCI and paging PDSCH, and can enter low power consumption or sleep state to reduce the power consumption of some terminal devices in PO.

[0267] The total number of PFs N in each DRX cycle ranges from {T, T / 2, T / 4, T / 8, T / 16}, and the number of POs Ns contained in each paging frame ranges from {1, 2, 4}. N*Ns is used to represent the median number of POs in a DRX cycle. When the value of N*Ns is relatively large, such as N=T, Ns=4, N*Ns=4T, it means that each radio frame in the DRX cycle is a PF, and each PF contains 4 POs. At this time, the POs in the DRX cycle are dense, such as Figure 2 shown.

[0268] In this way, when PEI supports sub-group division, for PEI, terminal devices of different sub-groups should determine different PEIs, so that different PEIs can be used to indicate whether terminal devices of different sub-groups are paging, so as to reduce the power consumption of the terminal devices, and the embodiment of the present invention provides a solution for determining different PEIs for different sub-groups.

[0269] Specifically, the embodiments of the present application provide an information transmission method, apparatus, terminal equipment, and network equipment to determine different PEIs for different sub-groups and reduce the power consumption of the terminal equipment.

[0270] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0271] like Figure 3 As shown, an embodiment of the present invention provides an information transmission method, including:

[0272] Step 31: The terminal device determines the first identifier.

[0273] The first identifier is related to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO, and the number of POs corresponding to a PEI.

[0274] Optionally, the subgroup identifier corresponding to the terminal device is the initial subgroup number (or index) corresponding to the terminal device, for example: the initial subgroup number can be expressed as initial sub-group number or sub-group_init in the embodiment of the present invention. The initial subgroup number corresponding to the terminal device can be the initial subgroup number configured for the terminal device by the core network or the network device. If the core network or the network device does not configure the initial subgroup number for the terminal device, the terminal device and the network device can both determine the initial subgroup number information based on the paging parameters; wherein the paging parameters may include but are not limited to: the total number N of paging frames in each DRX cycle, the total number Ns of POs contained in each paging frame, and UE_ID, etc. Of course, the embodiments of the present invention are not limited to this.

[0275] Optionally, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI can be configured by a network device, such as the network device carries the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI through high-level signaling, or by protocol agreement, and the embodiments of the present application do not make specific limitations.

[0276] Step 32: The terminal device receives or detects the PEI sent by the network device.

[0277] The PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier.

[0278] Optionally, if the terminal device receives or detects the PEI, the terminal device monitors or does not monitor the paging message according to the paging status of the terminal device indicated by the PEI.

[0279] For example, when the PEI indicates that there is a paging message of the terminal device, the terminal device may monitor subsequent paging messages; otherwise, the terminal device may enter a low power consumption or sleep state to reduce power consumption.

[0280] In an embodiment of the present invention, the terminal device determines a first identifier and receives or detects a PEI sent by a network device to indicate the paging status of the terminal device. Since the PEI is related to the first identifier, and the first identifier is related to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO, and the number of POs corresponding to a PEI, different PEIs can be determined for different subgroups. Different PEIs indicate the paging status of terminal devices in different subgroups, which is beneficial to reducing the power consumption of the terminal device.

[0281] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0282] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0283] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0284] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0285] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0286] Among them, G1, G2, and G3 are all positive integers.

[0287] It should be noted that the first identifier in the embodiment of the present application is related to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI, and is not limited to the first identifier being related only to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI. The first identifier may also be related to other parameters. For example, for the third type of PEI, the first identifier may also be related to the number of subgroups corresponding to a subgroup set. For example, when the number N1 of POs corresponding to a PEI is greater than 1, the first identifier may also be related to the identifier (or number / index) of the PO corresponding to the terminal device in these N1 POs, etc. The embodiments of the present invention are not limited to this.

[0288] Optionally, the network device may indicate the type of the PEI through a first signaling, that is, the method may further include: the terminal device receives a first signaling sent by the network device; wherein the first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI. For example: the first signaling may be a SIB, such as SIB-X, and SIB-X may be a new SIB message in addition to existing SIB messages (such as SIB1, SIB3, SIB4, SIB5, SIB6, SIB7), etc.

[0289] For example: when there is paging for terminal devices in only one subgroup, the paging status of the terminal devices in the corresponding subgroup can be indicated by the first type PEI; when there are paging for terminal devices in multiple subgroups, the paging status of the terminal devices in the corresponding subgroup can be indicated by at least one of the second type PEI, the third type PEI and the fourth type PEI, which will be explained in detail below.

[0290] Optionally, when the PEI is a first type PEI, the terminal device determines the first identifier, including:

[0291] If the number of POs corresponding to a PEI is 1, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device; for example: the terminal device determines the first identifier as the subgroup identifier corresponding to the terminal device, or when the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device.

[0292] If the number of POs corresponding to one PEI is greater than 1, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0293] For example, when the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1. Specifically, the terminal device determines the first identifier by the formula: Y=A1*G1+M1.

[0294] Among them, Y is the first identifier; A1 is related to at least one of the target value and the first PO identifier, the target value is a positive integer, and the first PO identifier is the identifier of the PO corresponding to the terminal device among N1 POs; M1 is related to the subgroup identifier corresponding to the terminal device.

[0295] In this embodiment, the first type of PEI can be called sub-group specific PEI, and the formula Y=A1*G1+M1 can include: Y=PO_index*G1+sub-group_init; wherein PO_index is the first PO identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device (i.e., the initial sub-group number of the terminal device); wherein, the first PO identifier can be understood as the number (or index) of the PO corresponding to the terminal device in N1 POs (i.e., N1 POs corresponding to one PEI).

[0296] Optionally, when the PEI is a second type PEI, the terminal device determines the first identifier in one of the following ways:

[0297] Method 1: The terminal device determines the first identifier according to G1.

[0298] Optionally, when the terminal device determines the first identifier according to G1, the first identifier satisfies the formula: Y=G1+M1; specifically, the terminal device determines the first identifier by the formula: Y=G1+M1. Wherein, Y is the first identifier, and M1 is 0 or a positive integer;

[0299] In this embodiment, the second type PEI may be called common PEI. For example, when the number of POs corresponding to a PEI is 1, and paging occurs to terminal devices in at least two subgroups of the PO, the paging status of the terminal devices may be indicated by the common PEI.

[0300] Optionally, when the initial subgroup numbers of G1 Sub-groups are 0, 1, 2, …, G1-1, M1 can be 0, and the first identifier (i.e., the final subgroup number) corresponding to the common PEI is Y=G1; when the initial subgroup numbers of G1 Sub-groups are 1, 2, …, G1, M1 can be a positive integer such as 1, and the final subgroup number corresponding to the common PEI is Y=G1+1.

[0301] Method 2: The terminal device determines the first identifier according to the G1 and the G2.

[0302] Optionally, when the terminal device determines the first identifier based on the G1 and the G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2); specifically, the terminal device determines the first identifier through the formula: Y=G1+floor(G1 / G2).

[0303] In this embodiment, the second type PEI can be called common PEI. For example, when the number of POs corresponding to a PEI is 1, and there is paging in terminal devices in at least two subgroups in this PO, the paging status of the terminal devices can be indicated through the common PEI. Of course, the embodiment of the present invention is not limited to indicating the paging status of the terminal devices through the second type PEI as long as there is paging in at least two subgroups in a PO. For example, the paging status of the terminal devices can also be indicated through the third type PEI.

[0304] Optionally, the network device may also configure the indication level corresponding to the second type PEI through SIB-X, and the terminal device may determine the first identifier according to G1 and the indication level; for example, the first identifier may satisfy the formula: Y=G1+2 X-1 , where X is the indication level corresponding to the second type PEI, such as X=2.

[0305] Optionally, G2 is related to the number of subgroups corresponding to a PO, such as G2 can be understood as the number of subgroups corresponding to a subgroup set, for example: the number of subgroups corresponding to a subgroup set can be configured by a network device or agreed upon by a protocol. The network device configuration or protocol agreement can be a direct or indirect method, such as directly configuring or agreeing on the number of subgroups corresponding to a subgroup set, or indirectly determined by configuring or agreeing on the number of subgroup sets, or indirectly determined by the PEI indication level configured by the network device, etc. The embodiments of the present invention are not limited thereto.

[0306] Method three: The terminal device determines the first identifier based on G1, G21 and G22; wherein the third type PEI includes a first-level third type PEI for indicating the paging status of the terminal devices corresponding to G21 subgroups, and / or a second-level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, 1<G21<G22<G1.

[0307] Optionally, when the terminal device determines the first identifier based on G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22); specifically, the terminal device determines the first identifier through the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22).

[0308] In this embodiment, the second type PEI can be called common PEI. For example, when the number of POs corresponding to a PEI is 1, and there is paging in terminal devices in at least two subgroups in this PO, the paging status of the terminal devices can be indicated by the common PEI. Of course, the embodiment of the present invention is not limited to indicating the paging status of the terminal devices by the second type PEI as long as there is paging in at least two subgroups in a PO. For example, the paging status of the terminal devices can also be indicated by the third type PEI. More specifically, the paging status of the terminal devices can also be indicated by the third type PEI of the first level or the third type PEI of the second level.

[0309] Optionally, the network device may also configure the indication level corresponding to the second type PEI through SIB-X, and the terminal device may determine the first identifier according to G1 and the indication level; for example, the first identifier may satisfy: Y=G1+2 X-1 +2 X-2 , where X is the indication level corresponding to the second type PEI, such as X=3.

[0310] Optionally, G21 and G22 are related to the number of subgroups corresponding to a PO, such as G21 can be understood as the number of subgroups corresponding to a first subgroup set, and G22 can be understood as the number of subgroups corresponding to a second subgroup set, wherein the second subgroup set includes the first subgroup set. For example: the number of subgroups corresponding to a first subgroup set and the number of subgroups corresponding to a second subgroup set can be configured by a network device or agreed upon by a protocol. Among them, the network device configuration or protocol agreement can be a direct or indirect method, such as directly configuring or agreeing on the number of subgroups corresponding to a first subgroup set and the number of subgroups corresponding to a second subgroup set, or it can be indirectly determined by the number of configured or agreed subgroup sets, etc., or it can be indirectly determined by the PEI indication level configured by the network device, etc. The embodiments of the present invention are not limited to this.

[0311] Method 4: The terminal device determines the first identifier according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0312] Optionally, when the terminal device determines the first identifier based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; specifically, the terminal device determines the first identifier by the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier. For example: M2 may be the first PO identifier, then the first identifier satisfies the formula: Y=N1*G1+PO_index; wherein PO_index is the first PO identifier, and the first PO identifier can be understood as the number (or index) of the PO corresponding to the terminal device in the N1 POs (i.e., the N1 POs corresponding to one PEI).

[0313] In this embodiment, the second type of PEI can be called PO-level PEI. For example, when the number of POs corresponding to a PEI is greater than 1 (i.e., N1>1), and there is paging of terminal devices in only one of the N1 POs, and there is paging of terminal devices in at least two subgroups within this one PO, the paging status of the terminal devices can be indicated by PO-level PEI.

[0314] Optionally, when the PEI is a third type PEI, the terminal device determines the first identifier, including one of the following methods:

[0315] Method 1: The terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, G1 and G2.

[0316] Optionally, when the terminal device determines the first identifier based on the sub-group identifier corresponding to the terminal device, the G1 and the G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); specifically, the terminal device determines the first identifier through the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, sub-group_init is the sub-group identifier corresponding to the terminal device, that is, the initial sub-group number (or index) corresponding to the terminal device.

[0317] In this embodiment, the third type PEI can be called sub-group set PEI, for example: when the number of POs corresponding to a PEI is 1, there are pagings of terminal devices in at least two subgroups in this PO, and these at least two subgroups belong to the same group of G2 subgroups, the paging status of the terminal device can be indicated by the sub-group set PEI. Optionally, when these at least two subgroups do not belong to the same group of G2 subgroups, the paging status of the terminal device can be indicated by the second type PEI.

[0318] Optionally, the network device may also configure the indication level corresponding to the third type PEI through SIB-X, and the terminal device may determine the first identifier according to the sub-group identifier corresponding to the terminal device, the G1 and the indication level; for example, the first identifier may satisfy: Y = G1 + floor (sub-group_init / (G1 / 2 X-1 ), where X is the indication level corresponding to the third type PEI, such as X=2.

[0319] Mode 2: The third type PEI includes a first level third type PEI for indicating the paging conditions of the terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of the terminal devices corresponding to G22 subgroups. Wherein, 1<G21<G22<G1.

[0320] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to G21 subgroups, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, G1 and G21.

[0321] Optionally, when the terminal device determines the first identifier based on the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21); specifically, the terminal device determines the first identifier through the formula: Y=G1+floor(sub-group_init / G21).

[0322] In this embodiment, the third type PEI of the first level can be called sub-group set PEI_level1. For example, when the number of POs corresponding to a PEI is 1, there are pagings of terminal devices in at least two subgroups in this PO, and these at least two subgroups belong to the same group G21 subgroups, the paging status of the terminal devices can be indicated by the sub-group set PEI_level1. Optionally, when these at least two subgroups do not belong to the same group G21 subgroups, but belong to the same group G22 subgroups, the paging status of the terminal devices can be indicated by the third type PEI of the second level; when these at least two subgroups do not belong to the same group G21 subgroups, nor do they belong to the same group G22 subgroups, the paging status of the terminal devices can be indicated by the second type PEI.

[0323] Optionally, the network device may also configure the indication level corresponding to the third type PEI through SIB-X, and the terminal device may determine the first identifier according to the sub-group identifier corresponding to the terminal device, the G1 and the indication level; for example, the first identifier satisfies: Y=G1+floor(sub-group_init / (G1 / 2 X-1 ); wherein X is the indication level corresponding to the third type PEI, such as X=3.

[0324] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, G1, G21 and G22.

[0325] Optionally, when the terminal device determines the first identifier based on the sub-group identifier corresponding to the terminal device, the G1, the G21 and the G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22); specifically, the terminal device determines the first identifier through the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0326] In this embodiment, the third type PEI of the second level can be called sub-group set PEI_level2. For example, when the number of POs corresponding to a PEI is 1, there are pagings of terminal devices in at least two subgroups in this PO, and these at least two subgroups belong to the same group G22 subgroups, the paging status of the terminal device can be indicated by the sub-group set PEI_level2. Optionally, when these at least two subgroups belong to the same group G22 subgroups and also belong to the same group G21 subgroups, the paging status of the terminal device can be indicated by the third type PEI of the first level; when these at least two subgroups do not belong to the same group G22 subgroups, the paging status of the terminal device can be indicated by the second type PEI.

[0327] Optionally, the network device may also configure the indication level corresponding to the third type PEI through SIB-X, and the terminal device may determine the first identification according to the subgroup identification corresponding to the terminal device, the G1 and the indication level; for example: the first identification satisfies: Y=G1+2 X-1 +floor(sub-group_init / (G1 / 2 X-2 ); wherein X is the indication level corresponding to the third type PEI, such as X=3.

[0328] Optionally, when the PEI is a fourth type PEI, the terminal device determines a first identifier, including: the terminal device determines the first identifier according to the N1 and the G1.

[0329] For example, when the terminal device determines the first identifier according to N1 and G1, the first identifier satisfies the formula: Y = (N1 + N0) * G1; specifically, the terminal device determines the first identifier by the formula: Y = (N1 + N0) * G1. Where Y is the first identifier, and N0 is a positive integer, for example, when N0 is 1, Y = (N1 + 1) * G1.

[0330] In this embodiment, the fourth type of PEI can be called Common PEI. For example, when the number of POs corresponding to a PEI is greater than 1 (that is, N1 is greater than 1), and there are paging calls for terminal devices in at least two of the N1 POs, the paging status of the terminal devices can be indicated by the Common PEI.

[0331] Optionally, the method further includes: the terminal device determining the first PO identifier according to a paging parameter.

[0332] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0333] For example: the first PO will identify the formula: PO_Index = (SFN_PF*N*Ns / T+i_s) mod N1; wherein, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0334] Optionally, the terminal device receives or detects the PEI sent by the network device, including: the terminal device receives or detects the PEI sent by the network device on the time-frequency resources of the PEI.

[0335] For example, there may be a mapping relationship between PEI and PEI resources, and the mapping relationship may be established through a PEI identifier (or PEI index) and a PEI resource identifier (or PEI resource index).

[0336] In this embodiment, when the PEI includes multiple types of PEIs, different types of PEIs correspond to different resource locations. For example, different types of PEIs may have a mapping relationship with different PEI resources, and the mapping relationship may be established through PEIindex and PEI resource index.

[0337] For example: the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI.

[0338] The terminal device receives or detects the PEI sent by the network device, or the terminal device receives or detects the PEI sent by the network device on the time-frequency resource of the PEI, including:

[0339] The terminal device receives or detects the first PEI sent by the network device on the first time-frequency resource;

[0340] The terminal device receives or detects the second PEI sent by the network device on the second time-frequency resource.

[0341] For example, the PEI resource index corresponding to the first PEI is 0, that is, the first PEI corresponds to the first PEI resource; the PEI resource index corresponding to the second PEI is 1, that is, the common PEI corresponds to the second PEI resource.

[0342] Optionally, the first PEI may be one of the first type PEI, the second type PEI, the third type PEI and the fourth type PEI, the second PEI may be one of the first type PEI, the second type PEI, the third type PEI and the fourth type PEI, and the first PEI and the second PEI are different. For example: the first PEI may be the first type PEI, and the second PEI may be the third type PEI; or the first PEI may be the second type PEI, and the second PEI may be the third type PEI, etc., and the embodiment of the present invention is not limited thereto.

[0343] Optionally, the PEI is related to the first identifier and may include:

[0344] The PEI is generated by a first sequence and an orthogonal sequence, the first sequence is generated by an m sequence or a gold sequence, and the orthogonal sequence is related to the first identifier. For example, the first sequence is a time-frequency tracking reference signal (Tracking ReferenceSignal, TRS) sequence or a secondary synchronization signal (Secondary synchronization signal, SSS) sequence, and the orthogonal sequence can be a Walsh sequence. Optionally, for different types of PEIs, the first sequence can be the same when the PEI is generated, and the orthogonal sequences are different, that is, different types of PEIs are distinguished by different orthogonal sequences. Optionally, for different subgroup identifiers, the first sequence can be the same when the PEI is generated, and the orthogonal sequences are different, that is, different subgroup identifiers are distinguished by different orthogonal sequences.

[0345] Alternatively, the PEI includes a second sequence, and the initialization factor (Cinit) of the second sequence is related to the first identifier. For example, the second sequence can be generated in the same way as the TRS sequence. Optionally, for different types of PEI, the first identifiers related to Cinit used to generate the second sequence are different, that is, different types of PEI are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different types of PEI are further determined. Optionally, for different subgroup identifiers, the first identifiers related to Cinit used to generate the second sequence are different, that is, different subgroup identifiers are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different subgroup identifiers are further determined.

[0346] Alternatively, the PEI includes a third sequence, and the third sequence is generated by two m-sequences, and at least one of the two m-sequences is related to the first identifier. For example: the generation method of the third sequence can be the same as the generation method of the SSS sequence, such as being generated based on two m-sequences; the initialization factor of at least one of the two m-sequences is related to the first identifier. Optionally, for different types of PEI, the first identifiers related to Cinit used to generate the m-sequence are different, that is, different types of PEI are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different types of PEI are further determined. Optionally, for different subgroup identifiers, the first identifiers related to Cinit used to generate the m-sequence are different, that is, different subgroup identifiers are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different subgroup identifiers are further determined.

[0347] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0348] The above embodiments introduce the information transmission method on the terminal device side of the present invention. The following embodiment will further illustrate the corresponding terminal device in conjunction with the accompanying drawings.

[0349] Specifically, Figure 4 As shown, a terminal device 400 according to an embodiment of the present invention includes:

[0350] A first determining unit 410 is configured to determine a first identifier, wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a number of subgroups corresponding to a paging opportunity PO, and a number of POs corresponding to a paging advance indication PEI;

[0351] The processing unit 420 is used to receive or detect the PEI sent by the network device; wherein the PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier.

[0352] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0353] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0354] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0355] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0356] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0357] Optionally, when the PEI is a first type PEI, the first determining unit 410 is further configured to:

[0358] If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device;

[0359] If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0360] Optionally, the first determination unit 410 is further used to: determine that the first identifier is the subgroup identifier corresponding to the terminal device, or in the case where the first identifier is determined based on the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device.

[0361] Optionally, when the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0362] Among them, Y is the first identifier; A1 is related to at least one of the target value and the first PO identifier, the target value is a positive integer, and the first PO identifier is the identifier of the PO corresponding to the terminal device among N1 POs; M1 is related to the subgroup identifier corresponding to the terminal device.

[0363] Optionally, when the PEI is a second type PEI, the first determining unit 410 is further configured to:

[0364] Determine the first identifier according to G1;

[0365] or,

[0366] Determine the first identifier according to the G1 and the G2;

[0367] or,

[0368] Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups, 1<G21<G22<G1;

[0369] or,

[0370] The first identifier is determined according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0371] Optionally, when the first identifier is determined according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0372] When the first identifier is determined according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0373] In the case where the first identifier is determined according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0374] When the first identifier is determined based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0375] Optionally, when the PEI is a third type PEI, the first determining unit 410 is further configured to:

[0376] determining the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0377] or,

[0378] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0379] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0380] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, G1, G21 and G22; wherein 1<G21<G22<G1.

[0381] Optionally, when the first identifier is determined according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0382] In the case where the first identifier is determined according to the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0383] When the first identifier is determined based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0384] Optionally, when the PEI is a fourth type PEI, the first determination unit 410 is further used to: determine the first identifier according to the N1 and the G1.

[0385] Optionally, when the first identifier is determined according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0386] Wherein, Y is the first identifier, and N0 is a positive integer.

[0387] Optionally, the terminal device 400 further includes:

[0388] A second determining unit, configured to determine the first PO identifier according to a paging parameter;

[0389] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0390] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0391] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0392] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0393] The processing unit 420 is further configured to:

[0394] Receiving or detecting the first PEI sent by the network device on the first time-frequency resource;

[0395] The second PEI sent by the network device is received or detected on the second time-frequency resource.

[0396] Optionally, the terminal device 400 further includes:

[0397] A receiving unit, configured to receive a first signaling sent by a network device;

[0398] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0399] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0400] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0401] It should be noted here that the above-mentioned terminal device 400 provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0402] like Figure 5 As shown, this embodiment provides an information processing device, including a memory 52, a transceiver 53, and a processor 51; wherein the memory 52 is used to store computer programs; the transceiver 53 is used to send and receive data under the control of the processor 51; the transceiver 53 is used to receive and send data under the control of the processor 51; the processor 51 is used to read the computer program in the memory 52 and perform the following operations:

[0403] Determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a paging advance indication PEI corresponding to a PO number;

[0404] Receive or detect a PEI sent by a network device; wherein the PEI is used to indicate a paging status of the terminal device, and the PEI is related to the first identifier.

[0405] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0406] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0407] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0408] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0409] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0410] Optionally, when the PEI is a first type PEI, the processor 51 is configured to read the computer program in the memory and perform the following operations:

[0411] If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device;

[0412] If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0413] Optionally, the processor 51 is configured to read the computer program in the memory and perform the following operations:

[0414] The first identifier is determined to be the subgroup identifier corresponding to the terminal device, or in other words, when the first identifier is determined based on the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device.

[0415] Optionally, when the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0416] Wherein, Y is the first identifier;

[0417] A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs;

[0418] M1 is related to the subgroup identifier corresponding to the terminal device.

[0419] Optionally, when the PEI is a second type PEI, the processor 51 is configured to read the computer program in the memory and perform the following operations:

[0420] Determine the first identifier according to G1;

[0421] or,

[0422] Determine the first identifier according to the G1 and the G2;

[0423] or,

[0424] Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of the terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of the terminal devices corresponding to G22 subgroups, 1<G21<G22<G1;

[0425] or,

[0426] The first identifier is determined according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0427] Optionally, when the first identifier is determined according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0428] When the first identifier is determined according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0429] In the case where the first identifier is determined according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0430] When the first identifier is determined based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0431] Optionally, when the PEI is a third type PEI, the processor 51 is configured to read the computer program in the memory and perform the following operations:

[0432] determining the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0433] or,

[0434] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0435] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0436] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, G1, G21 and G22; wherein 1<G21<G22<G1.

[0437] Optionally, when the first identifier is determined according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0438] In the case where the first identifier is determined according to the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0439] When the first identifier is determined based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0440] Optionally, when the PEI is a fourth type PEI, the processor 51 is configured to read the computer program in the memory and perform the following operations:

[0441] The first identifier is determined according to the N1 and the G1.

[0442] Optionally, when the first identifier is determined according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0443] Wherein, Y is the first identifier, and N0 is a positive integer.

[0444] Optionally, the processor 51 is configured to read the computer program in the memory and perform the following operations:

[0445] Determine the first PO identifier according to the paging parameter;

[0446] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0447] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0448] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0449] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0450] The processor 51 is used to read the computer program in the memory and perform the following operations:

[0451] Receiving or detecting the first PEI sent by the network device on the first time-frequency resource;

[0452] The second PEI sent by the network device is received or detected on the second time-frequency resource.

[0453] Optionally, the processor 51 is configured to read the computer program in the memory and perform the following operations:

[0454] Receiving a first signaling sent by a network device;

[0455] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0456] Among them, Figure 5 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 51 and various circuits of memory represented by memory 52 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 53 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 54 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0457] The processor 51 is responsible for managing the bus architecture and general processing, and the memory 52 can store data used by the processor 51 when performing operations.

[0458] Optionally, the processor 51 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0459] The processor 51 calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor 51 and the memory 52 can also be arranged physically separately.

[0460] It should be noted here that the above-mentioned device provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0461] An embodiment of the present invention also provides a processor-readable storage medium, which stores a computer program. The computer program is used to enable the processor to execute the steps in the above-mentioned information transmission method and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0462] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0463] The above describes the information transmission method of the embodiment of the present invention from the terminal device side. The following will further describe the information transmission method on the network device side with reference to the accompanying drawings.

[0464] like Figure 6 As shown, an embodiment of the present invention provides an information transmission method, including:

[0465] Step 61: The network device determines a first identifier.

[0466] The first identifier is related to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO, and the number of POs corresponding to a PEI.

[0467] Optionally, the subgroup identifier corresponding to the terminal device is the initial subgroup number (or index) corresponding to the terminal device, for example: the initial subgroup number can be expressed as initial sub-group number or sub-group_init in the embodiment of the present invention. The core network or network device can configure the corresponding initial subgroup number for the terminal device. If the core network or network device does not configure the initial subgroup number for the terminal device, the network device and the terminal device can both determine the initial subgroup number information based on the paging parameters; wherein the paging parameters may include but are not limited to: the total number N of paging frames in each DRX cycle, the total number Ns and UE_ID contained in each paging frame, etc.). Of course, the embodiments of the present invention are not limited to this.

[0468] Optionally, the network device can configure the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI for the terminal device, such as the network device carries the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI through high-level signaling, or by protocol agreement, which is not specifically limited in the embodiments of the present application.

[0469] Step 62: The network device sends the PEI to the terminal device.

[0470] The PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier.

[0471] Accordingly, when the network device sends PEI to the terminal device, the terminal device can receive or detect the PEI. If the terminal device receives or detects the PEI, the terminal device can monitor or not monitor the paging message according to the paging status of the terminal device indicated by the PEI.

[0472] For example, when the PEI indicates that there is a paging message of the terminal device, the terminal device may monitor subsequent paging messages; otherwise, the terminal device may enter a low power consumption or sleep state to reduce power consumption.

[0473] In an embodiment of the present invention, the network device determines a first identifier and sends a PEI to the terminal device to indicate the paging status of the terminal device. Since the PEI is related to the first identifier, and the first identifier is related to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO, and the number of POs corresponding to a PEI, different PEIs can be determined for different subgroups. Different PEIs indicate the paging status of terminal devices in different subgroups, which is beneficial to reducing the power consumption of the terminal device.

[0474] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0475] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0476] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0477] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0478] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0479] Among them, G1, G2, and G3 are all positive integers.

[0480] It should be noted that the first identifier in the embodiment of the present application is related to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI, and is not limited to the first identifier being related only to at least one of the subgroup identifier corresponding to the terminal device, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI. The first identifier may also be related to other parameters. For example, for the third type of PEI, the first identifier may also be related to the number of subgroups corresponding to a subgroup set. For example, when the number N1 of POs corresponding to a PEI is greater than 1, the first identifier may also be related to the identifier (or number / index) of the PO corresponding to the terminal device in these N1 POs, etc. The embodiments of the present invention are not limited to this.

[0481] Optionally, the network device may indicate the type of the PEI through a first signaling, that is, the method may further include: the network device sends a first signaling to the terminal device; wherein the first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI. For example: the first signaling may be a SIB, such as SIB-X, and SIB-X may be a new SIB message in addition to existing SIB messages (such as SIB1, SIB3, SIB4, SIB5, SIB6, SIB7), etc.

[0482] For example: when there is paging for terminal devices in only one subgroup, the network device can indicate the paging status of the terminal devices in the corresponding subgroup through the first type PEI; when there are paging for terminal devices in multiple subgroups, the network device can indicate the paging status of the terminal devices in the corresponding subgroup through at least one of the second type PEI, the third type PEI and the fourth type PEI, which will be explained in detail below.

[0483] Optionally, when the PEI is a first type PEI, the network device determines the first identifier, including:

[0484] If the number of POs corresponding to a PEI is 1, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device; for example: the network device determines the first identifier as the subgroup identifier corresponding to the terminal device, or when the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device.

[0485] If the number of POs corresponding to one PEI is greater than 1, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0486] For example: when the network device determines the first identifier based on the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1; specifically, the network device determines the first identifier through the formula: Y=A1*G1+M1.

[0487] Among them, Y is the first identifier; A1 is related to at least one of the target value and the first PO identifier, the target value is a positive integer, and the first PO identifier is the identifier of the PO corresponding to the terminal device among N1 POs; M1 is related to the subgroup identifier corresponding to the terminal device.

[0488] In this embodiment, the first type of PEI can be called sub-group specific PEI, and the formula Y=A1*G1+M1 can include: Y=PO_index*G1+sub-group_init; wherein PO_index is the first PO identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device (i.e., the initial sub-group number of the terminal device); wherein, the first PO identifier can be understood as the number (or index) of the PO corresponding to the terminal device in N1 POs (i.e., N1 POs corresponding to one PEI).

[0489] Optionally, when the PEI is a second type PEI, the network device determines the first identifier, including one of the following methods:

[0490] Method 1: The network device determines the first identifier according to G1.

[0491] Optionally, when the network device determines the first identifier according to G1, the first identifier satisfies the formula: Y=G1+M1; specifically, the network device determines the first identifier by the formula: Y=G1+M1. Wherein, Y is the first identifier, and M1 is 0 or a positive integer;

[0492] In this embodiment, the second type PEI can be called common PEI. For example, when the number of POs corresponding to a PEI is 1, and there is paging of terminal devices in at least two subgroups in this PO, the network device can indicate the paging status of the terminal device through the common PEI.

[0493] Optionally, when the initial subgroup numbers of G1 Sub-groups are 0, 1, 2, …, G1-1, M1 can be 0, and the first identifier (i.e., the final subgroup number) corresponding to the common PEI is Y=G1; when the initial subgroup numbers of G1 Sub-groups are 1, 2, …, G1, M1 can be a positive integer such as 1, and the final subgroup number corresponding to the common PEI is Y=G1+1.

[0494] Method 2: The network device determines the first identifier according to the G1 and the G2.

[0495] Optionally, when the network device determines the first identifier based on the G1 and the G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2); specifically, the network device determines the first identifier by using the formula: Y=G1+floor(G1 / G2).

[0496] In this embodiment, the second type PEI can be called common PEI. For example, when the number of POs corresponding to a PEI is 1, and there is paging in terminal devices in at least two subgroups in this PO, the network device can indicate the paging status of the terminal device through the common PEI. Of course, the embodiment of the present invention is not limited to the case where there is paging in at least two subgroups in a PO. The network device must indicate the paging status of the terminal device through the second type PEI. For example, the network device can also indicate the paging status of the terminal device through the third type PEI.

[0497] Optionally, the network device may also configure the indication level corresponding to the second type PEI through SIB-X, and the network device may determine the first identifier according to G1 and the indication level; for example, the first identifier may satisfy the formula: Y=G1+2 X-1 , where X is the indication level corresponding to the second type PEI, such as X=2.

[0498] Optionally, G2 is related to the number of subgroups corresponding to a PO, such as G2 can be understood as the number of subgroups corresponding to a subgroup set, for example: the number of subgroups corresponding to a subgroup set can be configured by a network device or agreed upon by a protocol. The network device configuration or protocol agreement can be a direct or indirect method, such as directly configuring or agreeing on the number of subgroups corresponding to a subgroup set, or indirectly determined by configuring or agreeing on the number of subgroup sets, or indirectly determined by the PEI indication level configured by the network device, etc. The embodiments of the present invention are not limited thereto.

[0499] Method three: The network device determines the first identifier based on G1, G21 and G22; wherein the third type PEI includes a first-level third type PEI for indicating the paging status of the terminal devices corresponding to G21 subgroups, and / or a second-level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, 1<G21<G22<G1.

[0500] Optionally, when the network device determines the first identifier based on G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22); specifically, the network device determines the first identifier through the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22).

[0501] In this embodiment, the second type PEI can be called common PEI. For example, when the number of POs corresponding to a PEI is 1, and there is paging in terminal devices in at least two subgroups of this PO, the network device can indicate the paging status of the terminal device through the common PEI. Of course, the embodiment of the present invention is not limited to the situation that as long as there is paging in at least two subgroups in a PO, the network device must indicate the paging status of the terminal device through the second type PEI. For example, the network device can also indicate the paging status of the terminal device through the third type PEI. More specifically, for example, the paging status of the terminal device can also be indicated through the third type PEI of the first level or the third type PEI of the second level.

[0502] Optionally, the network device may also configure the indication level corresponding to the second type PEI through SIB-X, and the network device may determine the first identifier according to G1 and the indication level; for example, the first identifier may satisfy: Y=G1+2 X-1 +2 X-2 , where X is the indication level corresponding to the second type PEI, such as X=3.

[0503] Optionally, G21 and G22 are related to the number of subgroups corresponding to a PO, such as G21 can be understood as the number of subgroups corresponding to a first subgroup set, and G22 can be understood as the number of subgroups corresponding to a second subgroup set, wherein the second subgroup set includes the first subgroup set. For example: the number of subgroups corresponding to a first subgroup set and the number of subgroups corresponding to a second subgroup set can be configured by a network device or agreed upon by a protocol. Among them, the network device configuration or protocol agreement can be a direct or indirect method, such as directly configuring or agreeing on the number of subgroups corresponding to a first subgroup set and the number of subgroups corresponding to a second subgroup set, or it can be indirectly determined by the number of configured or agreed subgroup sets, etc., or it can be indirectly determined by the PEI indication level configured by the network device, etc. The embodiments of the present invention are not limited to this.

[0504] Method 4: The network device determines the first identifier based on the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0505] Optionally, when the network device determines the first identifier based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; specifically, the network device determines the first identifier by the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier. For example: M2 may be the first PO identifier, then the first identifier satisfies the formula: Y=N1*G1+PO_index; wherein PO_index is the first PO identifier, and the first PO identifier can be understood as the number (or index) of the PO corresponding to the terminal device in the N1 POs (i.e., the N1 POs corresponding to one PEI).

[0506] In this embodiment, the second type of PEI can be called PO-level PEI. For example, when the number of POs corresponding to a PEI is greater than 1 (i.e., N1>1), and there is paging of terminal devices in only one PO among the N1 POs, and there is paging of terminal devices in at least two subgroups within this PO, the network device can indicate the paging status of the terminal device through the PO-level PEI.

[0507] Optionally, when the PEI is a third type PEI, the network device determines the first identifier, including one of the following methods:

[0508] Method 1: The network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, G1 and G2.

[0509] Optionally, when the network device determines the first identifier based on the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); specifically, the network device determines the first identifier through the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, sub-group_init is the sub-group identifier corresponding to the terminal device, that is, the initial sub-group number (or index) corresponding to the terminal device.

[0510] In this embodiment, the third type PEI can be called sub-group set PEI, for example: when the number of POs corresponding to a PEI is 1, there are pagings for terminal devices in at least two subgroups in this PO, and these at least two subgroups belong to the same group of G2 subgroups, the network device can indicate the paging status of the terminal device through the sub-group set PEI. Optionally, when these at least two subgroups do not belong to the same group of G2 subgroups, the network device can indicate the paging status of the terminal device through the second type PEI.

[0511] Optionally, the network device may also configure the indication level corresponding to the third type PEI through SIB-X, and the network device may determine the first identifier according to the sub-group identifier corresponding to the terminal device, the G1 and the indication level; for example, the first identifier may satisfy: Y = G1 + floor (sub-group_init / (G1 / 2 X-1 ), where X is the indication level corresponding to the second type PEI, such as X=2.

[0512] Mode 2: The third type PEI includes a first level third type PEI for indicating the paging conditions of the terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of the terminal devices corresponding to G22 subgroups. Wherein, 1<G21<G22<G1.

[0513] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to G21 subgroups, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, G1 and G21.

[0514] Optionally, when the network device determines the first identifier based on the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21); specifically, the network device determines the first identifier through the formula: Y=G1+floor(sub-group_init / G21).

[0515] In this embodiment, the third type PEI of the first level can be called sub-group set PEI_level1. For example, when the number of POs corresponding to a PEI is 1, there are pagings for terminal devices in at least two subgroups in this PO, and these at least two subgroups belong to the same group of G21 subgroups, the network device can indicate the paging status of the terminal device through the sub-group setPEI_level1. Optionally, when the at least two subgroups do not belong to the same group of G21 subgroups, but belong to the same group of G22 subgroups, the network device can indicate the paging status of the terminal device through the third type PEI of the second level; when the at least two subgroups do not belong to the same group of G21 subgroups, nor do they belong to the same group of G22 subgroups, the network device can indicate the paging status of the terminal device through the second type PEI.

[0516] Optionally, the network device may also configure the indication level corresponding to the third type PEI through SIB-X, and the network device may determine the first identifier according to the sub-group identifier corresponding to the terminal device, the G1 and the indication level; for example, the first identifier satisfies: Y=G1+floor(sub-group_init / (G1 / 2 X-1 ); wherein X is the indication level corresponding to the third type PEI, such as X=3.

[0517] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to the G22 subgroups, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, G1, G21 and G22.

[0518] Optionally, when the network device determines the first identifier based on the sub-group identifier corresponding to the terminal device, the G1, the G21 and the G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22); specifically, the network device determines the first identifier through the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0519] In this embodiment, the third type PEI of the second level can be called sub-group set PEI_level2. For example, when the number of POs corresponding to a PEI is 1, there are paging calls for terminal devices in at least two subgroups in this PO, and these at least two subgroups belong to the same group of G22 subgroups, the network device can indicate the paging status of the terminal device through the sub-group setPEI_level2. Optionally, when these at least two subgroups belong to the same group of G22 subgroups and also belong to the same group of G21 subgroups, the network device can indicate the paging status of the terminal device through the third type PEI of the first level; when these at least two subgroups do not belong to the same group of G22 subgroups, the network device can indicate the paging status of the terminal device through the second type PEI.

[0520] Optionally, the network device may also configure the indication level corresponding to the third type PEI through SIB-X, and the terminal device may determine the first identification according to the subgroup identification corresponding to the terminal device, the G1 and the indication level; for example: the first identification satisfies: Y=G1+2 X-1 +floor(sub-group_init / (G1 / 2 X-2 ); wherein X is the indication level corresponding to the third type PEI, such as X=3.

[0521] Optionally, when the PEI is a fourth type PEI, the network device determines a first identifier, including: the network device determines the first identifier according to the N1 and the G1.

[0522] For example, when the network device determines the first identifier according to N1 and G1, the first identifier satisfies the formula: Y = (N1 + N0) * G1; specifically, the network device determines the first identifier by the formula: Y = (N1 + N0) * G1. Where Y is the first identifier, and N0 is a positive integer, for example, when N0 is 1, Y = (N1 + 1) * G1.

[0523] In this embodiment, the fourth type of PEI can be called Common PEI. For example, when the number of POs corresponding to a PEI is greater than 1 (that is, N1 is greater than 1), and there is paging of terminal devices in at least two of the N1 POs, the network device can indicate the paging status of the terminal device through the Common PEI.

[0524] Optionally, the method further includes: the network device determining the first PO identifier according to a paging parameter.

[0525] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0526] For example: the first PO will identify the formula: PO_Index = (SFN_PF*N*Ns / T+i_s) mod N1; wherein, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0527] Optionally, the network device sends the PEI to the terminal device, including: the network device sends the PEI to the terminal device on the time-frequency resources of the PEI.

[0528] For example, there may be a mapping relationship between PEI and PEI resources, and the mapping relationship may be established through a PEI identifier (or PEI index) and a PEI resource identifier (or PEI resource index).

[0529] In this embodiment, when the PEI includes multiple types of PEIs, different types of PEIs correspond to different resource locations. For example, different types of PEIs may have a mapping relationship with different PEI resources, and the mapping relationship may be established through PEIindex and PEI resource index.

[0530] For example: the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI.

[0531] The network device sends the PEI to the terminal device, or the network device sends the PEI to the terminal device on the time-frequency resource of the PEI, including:

[0532] The network device sends the first PEI to the terminal device on the first time-frequency resource;

[0533] The network device sends the second PEI to the terminal device on the second time-frequency resource.

[0534] For example, the PEI resource index corresponding to the first PEI is 0, that is, the first PEI corresponds to the first PEI resource; the PEI resource index corresponding to the second PEI is 1, that is, the common PEI corresponds to the second PEI resource.

[0535] Optionally, the first PEI may be one of the first type PEI, the second type PEI, the third type PEI and the fourth type PEI, the second PEI may be one of the first type PEI, the second type PEI, the third type PEI and the fourth type PEI, and the first PEI and the second PEI are different. For example: the first PEI may be the first type PEI, and the second PEI may be the third type PEI; or the first PEI may be the second type PEI, and the second PEI may be the third type PEI, etc., and the embodiment of the present invention is not limited thereto.

[0536] Optionally, before the network device sends the PEI to the terminal device, the method further includes: the network device determining the PEI according to the first identifier.

[0537] Specifically, the network device determines the PEI according to the first identifier, including:

[0538] The PEI is generated according to a first sequence and an orthogonal sequence; wherein the first sequence is generated by an m sequence or a gold sequence, and the orthogonal sequence is related to the first identifier. For example, the first sequence is a TRS sequence or an SSS sequence, and the orthogonal sequence may be a Walsh sequence. Optionally, for different types of PEIs, the first sequence may be the same when the PEI is generated, and the orthogonal sequence may be different, that is, different types of PEIs are distinguished by different orthogonal sequences. Optionally, for different subgroup identifiers, the first sequence may be the same when the PEI is generated, and the orthogonal sequence may be different, that is, different subgroup identifiers are distinguished by different orthogonal sequences.

[0539] Alternatively, the PEI is generated according to a second sequence; wherein the initialization factor (Cinit) of the second sequence is related to the first identifier. For example, the second sequence may be generated in the same manner as the TRS sequence. Optionally, for different types of PEI, the first identifiers related to Cinit used to generate the second sequence are different, i.e., different types of PEI are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different types of PEI are further determined. Optionally, for different subgroup identifiers, the first identifiers related to Cinit used to generate the second sequence are different, i.e., different subgroup identifiers are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different subgroup identifiers are further determined.

[0540] Alternatively, the PEI is generated according to a third sequence; wherein the third sequence is generated by two m sequences, and at least one of the two m sequences is related to the first identifier. For example: the generation method of the third sequence can be the same as the generation method of the SSS sequence, such as being generated based on two m sequences; the initialization factor of at least one of the two m sequences is related to the first identifier. Optionally, for different types of PEI, the first identifiers related to Cinit used to generate the m sequence are different, that is, different types of PEI are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different types of PEI are further determined. Optionally, for different subgroup identifiers, the first identifiers related to Cinit used to generate the m sequence are different, that is, different subgroup identifiers are distinguished by different Cinit. More specifically, different Cinit are determined by different first identifiers, and different subgroup identifiers are further determined.

[0541] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0542] The above embodiments introduce the information transmission method on the network device side of the present invention. The following embodiments will further illustrate the corresponding network device in conjunction with the accompanying drawings.

[0543] Specifically, Figure 7 As shown, a network device 700 according to an embodiment of the present invention includes:

[0544] A first determining unit 710 is configured to determine a first identifier, wherein the first identifier is related to at least one of a subgroup identifier corresponding to a terminal device, a number of subgroups corresponding to a paging opportunity PO, and a number of POs corresponding to a paging advance indication PEI;

[0545] The first sending unit 720 is used to send a PEI to the terminal device; wherein the PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier.

[0546] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0547] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0548] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0549] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0550] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0551] Optionally, when the PEI is a first type PEI, the first determining unit 710 is further configured to:

[0552] If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device;

[0553] If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0554] Optionally, the first determination unit 710: determines that the first identifier is the subgroup identifier corresponding to the terminal device, or when the first identifier is determined based on the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device.

[0555] Optionally, when the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0556] Among them, Y is the first identifier; A1 is related to at least one of the target value and the first PO identifier, the target value is a positive integer, and the first PO identifier is the identifier of the PO corresponding to the terminal device among N1 POs; M1 is related to the subgroup identifier corresponding to the terminal device.

[0557] Optionally, when the PEI is a second type PEI, the first determining unit 710 is further configured to:

[0558] Determine the first identifier according to G1;

[0559] or,

[0560] Determine the first identifier according to the G1 and the G2;

[0561] or,

[0562] Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups, 1<G21<G22<G1;

[0563] or,

[0564] The first identifier is determined according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0565] Optionally, when the first identifier is determined according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0566] When the first identifier is determined according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0567] In the case where the first identifier is determined according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0568] When the first identifier is determined based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0569] Optionally, when the PEI is a third type PEI, the first determining unit 710 is further configured to:

[0570] Determine the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0571] or,

[0572] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0573] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0574] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to the G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1, the G21 and the G22;

[0575] Among them, 1<G21<G22<G1.

[0576] Optionally, when the first identifier is determined according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0577] In the case where the first identifier is determined according to the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0578] When the first identifier is determined based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0579] Optionally, when the PEI is a fourth type PEI, the first determination unit 710 is further used to: determine the first identifier according to the N1 and the G1.

[0580] Optionally, when the first identifier is determined according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0581] Wherein, Y is the first identifier, and N0 is a positive integer.

[0582] Optionally, the network device 700 further includes:

[0583] A second determining unit, configured to determine the first PO identifier according to a paging parameter;

[0584] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0585] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0586] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0587] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0588] The first sending unit 720 is further configured to:

[0589] Sending the first PEI to the terminal device on the first time-frequency resource;

[0590] The second PEI is sent to the terminal device on the second time-frequency resource.

[0591] Optionally, the network device 700 further includes:

[0592] A second sending unit, configured to send a first signaling to a terminal device;

[0593] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0594] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0595] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0596] It should be noted here that the above-mentioned network device 700 provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0597] In order to better achieve the above goals, Figure 8 As shown, an embodiment of the present invention provides an information transmission device, including a memory 82, a transceiver 83, and a processor 81; wherein the memory 82 is used to store a computer program; the transceiver 83 is used to send and receive data under the control of the processor 81; the transceiver 83 is used to receive and send data under the control of the processor 81; the processor 81 is used to read the computer program in the memory and perform the following operations:

[0598] Determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a paging advance indication PEI corresponding to a PO number;

[0599] Sending a PEI to a terminal device; wherein the PEI is used to indicate a paging status of the terminal device, and the PEI is related to the first identifier.

[0600] Optionally, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI;

[0601] The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup;

[0602] The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO;

[0603] The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1;

[0604] The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3=N1*G1, N1 is the number of POs corresponding to one PEI.

[0605] Optionally, when the PEI is a first type PEI, the processor 81 is configured to read the computer program in the memory and perform the following operations:

[0606] If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device;

[0607] If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

[0608] Optionally, the processor 81 is configured to read the computer program in the memory and perform the following operations:

[0609] Determine that the first identifier is the subgroup identifier corresponding to the terminal device, or in the case where the first identifier is determined based on the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device.

[0610] Optionally, when the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1;

[0611] Wherein, Y is the first identifier;

[0612] A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs;

[0613] M1 is related to the subgroup identifier corresponding to the terminal device.

[0614] Optionally, when the PEI is a second type PEI, the processor 81 is configured to read the computer program in the memory and perform the following operations:

[0615] Determine the first identifier according to G1;

[0616] or,

[0617] Determine the first identifier according to the G1 and the G2;

[0618] or,

[0619] Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups, 1<G21<G22<G1;

[0620] or,

[0621] The first identifier is determined according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

[0622] Optionally, when the first identifier is determined according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer;

[0623] When the first identifier is determined according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2);

[0624] In the case where the first identifier is determined according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22);

[0625] When the first identifier is determined based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

[0626] Optionally, when the PEI is a third type PEI, the processor 81 is configured to read the computer program in the memory and perform the following operations:

[0627] Determine the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2;

[0628] or,

[0629] The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups;

[0630] If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21;

[0631] If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to the G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1, the G21 and the G22;

[0632] Among them, 1<G21<G22<G1.

[0633] Optionally, when the first identifier is determined according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device;

[0634] In the case where the first identifier is determined according to the sub-group identifier corresponding to the terminal device, the G1 and the G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21);

[0635] When the first identifier is determined based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

[0636] Optionally, when the PEI is a fourth type PEI, the processor 81 is configured to read the computer program in the memory and perform the following operations:

[0637] The first identifier is determined according to the N1 and the G1.

[0638] Optionally, when the first identifier is determined according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1;

[0639] Wherein, Y is the first identifier, and N0 is a positive integer.

[0640] Optionally, the processor 81 is configured to read the computer program in the memory and perform the following operations:

[0641] Determine the first PO identifier according to the paging parameter;

[0642] The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

[0643] Optionally, the first PO index satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1;

[0644] Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

[0645] Optionally, the PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI;

[0646] The processor 81 is used to read the computer program in the memory and perform the following operations:

[0647] Sending the first PEI to the terminal device on the first time-frequency resource;

[0648] The second PEI is sent to the terminal device on the second time-frequency resource.

[0649] Optionally, the processor 81 is configured to read the computer program in the memory and perform the following operations:

[0650] Sending a first signaling to a terminal device;

[0651] The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

[0652] Among them, Figure 8 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 81 and various circuits of memory represented by memory 82 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 83 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 81 is responsible for managing the bus architecture and general processing, and the memory 82 may store data used by the processor 81 when performing operations.

[0653] The processor 81 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0654] It should be noted here that the above-mentioned device provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0655] An embodiment of the present invention also provides a processor-readable storage medium, which stores a computer program. The computer program is used to enable the processor to execute the steps in the above-mentioned information transmission method and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0656] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0657] The information transmission method of the embodiment of the present invention is described below in conjunction with a network device and a terminal device:

[0658] Example 1: The number of POs corresponding to one PEI is 1;

[0659] Step 1: The terminal device determines the subgroup identifier (or initial subgroup number);

[0660] The initial sub-group number may be represented as initial sub-group number or sub-group_init in the embodiment of the present invention. The method for the terminal device to determine the initial sub-group number may include: the core network or the network device configures specific initial sub-group number information for the terminal device. When the core network or the network device does not configure specific initial sub-group number information for the terminal device, the terminal device may calculate the initial sub-group number information based on paging parameters (such as N, Ns and UE_ID, etc.). This embodiment does not limit how the terminal device determines the initial sub-group number.

[0661] Step 2: The terminal device determines a first identifier (or a final subgroup number) according to at least one of the initial subgroup number and the number of subgroups corresponding to a PO;

[0662] The network device can configure the number of subgroups corresponding to a PO for the terminal device, such as the network device carries the number of subgroups corresponding to a PO through high-level signaling; or, the number of subgroups corresponding to a PO can be agreed upon by protocol. For example, the network device can configure the number of subgroups G1 corresponding to a PO for the terminal device through SIB-X, such as G1=8.

[0663] Taking the subgroup number G1=8 corresponding to a PO as an example, the terminal device can determine that the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, 7, or the initial subgroup number is any one of 1, 2, 3, 4, 5, 6, 7, 8.

[0664] For example: the terminal device determines the final subgroup number based on at least one of the initial subgroup number and the number of subgroups corresponding to a PO, including: determining the final subgroup number based on the initial subgroup number corresponding to the terminal device, and / or determining the final subgroup number based on G1.

[0665] The network device behavior is as follows: as long as there are two or more subgroups with terminal devices that need to be paged in the current paging opportunity, the network device sends a common PEI on the PEI resource, which can be called a commonPEI (i.e., a second type PEI, and the second type PEI is related to the final subgroup number determined according to the G1); if there is only one subgroup with terminal devices that need to be paged in the current paging opportunity, the network device sends a sub-groupspecific PEI on the PEI resource (i.e., a first type PEI, and the first type PEI is related to the final subgroup number determined according to the initial subgroup number). The network device can send any one of G1 possible sub-group specific PEIs and 1 commonPEI on the PEI resource.

[0666] The behavior of the terminal device is as follows: the terminal device detects in the PEI resource any one of the sub-group specific PEI and common PEI corresponding to the terminal device. If the terminal device detects its corresponding sub-group specific PEI, the terminal device needs to receive a paging message in the corresponding PO. The sub-groupspecific PEI will only instruct the terminal devices in a subgroup in the PO to receive the corresponding paging message. If the terminal device detects the common PEI, the terminal device needs to receive a paging message in the subsequent PO. Since the common PEI is common to all subgroups in the PO, the common PEI can indicate that the terminal devices in all subgroups in the PO need to receive the corresponding paging message.

[0667] In this embodiment, when only one subgroup in the PO has paging, the paging status of the terminal device is indicated through the sub-group specific PEI; when multiple subgroups in the PO have paging, the paging status of the terminal device is indicated through the common PEI.

[0668] Optionally, the network device can configure the indication level X corresponding to PEI through SIB-X. For example, the PEI indication level corresponding to this embodiment can be 1, that is, X=1. The terminal device and the network device can understand the alignment of the PEI indication level. When the PEI indication level is 1, when there is only one subgroup with paging in the PO, the paging status of the terminal device is indicated by the sub-group specific PEI. When there are multiple subgroups with paging in the PO, the paging status of the terminal device is indicated by the common PEI.

[0669] After determining the initial subgroup number, the terminal device needs to determine the final subgroup number (sub-group final) based on the initial subgroup number and / or the number of subgroups G1 corresponding to a PO, and determine the sub-group specific PEI and common PEI based on the final subgroup number.

[0670] In this embodiment, the final subgroup number determined by the terminal device according to the corresponding initial subgroup number and / or the number of subgroups G1 corresponding to a PO includes: the final subgroup number corresponding to the sub-group specific PEI is the initial subgroup number of the terminal device, and the final subgroup number corresponding to the common PEI is G1 or G1+1. For example: when the Sub-groupspecific PEI index is 0, 1, 2, ..., G1-1, the final subgroup number corresponding to the common PEI is G1; when the Sub-group specific PEI index is 1, 2, ..., G1, the final subgroup number corresponding to the common PEI is G1+1.

[0671] As shown in Table 1, in this embodiment, the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, and 7, and the final subgroup number corresponding to the common PEI is G1 for example.

[0672] Table 1

[0673]

[0674] Step 3: The terminal device determines a PEI for indicating a paging situation of the terminal device according to the final subgroup number;

[0675] The terminal device determines the final subgroup number according to the method in the above step 2, and can determine the PEI used to indicate the paging status of the terminal device according to the final subgroup number. For example: the PEI used to indicate the paging status of the terminal device may include: a first type PEI (i.e., sub-group specific PEI) and a second type PEI (i.e., common PEI); wherein, the first type PEI is used to indicate the paging status of the terminal device corresponding to 1 subgroup, and the final subgroup number associated with the first type PEI is determined according to the initial subgroup number corresponding to the terminal device; the second type PEI is used to indicate the paging status of the terminal device corresponding to G1 subgroups, and the final subgroup number associated with the second type PEI is determined according to G1. The terminal device here can be a terminal device in a sub-group in PO.

[0676] The PEI may include a sequence. Taking the first sequence as an example, the terminal device determines the PEI for indicating the paging status of the terminal device according to the final subgroup number, which may include the following schemes:

[0677] Solution 1: The PEI can be generated by a first sequence and an orthogonal sequence, and the first sequence is generated by an m sequence or a gold sequence. For example, the first sequence is a TRS sequence or an SSS sequence. The orthogonal sequence is related to the final subgroup number, and the orthogonal sequence can be a Walsh sequence. For different sub-group specific PEIs and common PEIs, the first sequence can be the same when PEI is generated, and the orthogonal sequences are different, that is, different sub-group specific PEIs and common PEIs are distinguished by different orthogonal sequences. More specifically, different orthogonal sequences are determined by different final subgroup numbers, and different PEIs (such as sub-group specific PEIs and common PEIs) are further determined.

[0678] Solution 2: The PEI includes a second sequence, and the generation method of the second sequence can be the same as that of the TRS sequence. The initialization factor Cinit of the second sequence is related to the final subgroup number. For different sub-group specific PEIs and common PEIs, the final subgroup numbers related to Cinit used to generate the second sequence are different, that is, different sub-group specific PEIs and common PEIs are distinguished by different Cinit. More specifically, different Cinit is determined by different final subgroup numbers, and different PEIs are further determined (such as the PEI is a sub-group specific PEI and a common PEI).

[0679] Solution 3: The PEI includes a third sequence, and the generation method of the third sequence can be the same as the generation method of the SSS sequence, such as generation based on two m sequences. The initialization factor Cinit of the m sequence is related to the final subgroup number. For different sub-group specific PEIs and common PEIs, the final subgroup numbers related to Cinit used to generate the m sequence are different, that is, different sub-group specific PEIs and common PEIs are distinguished by different Cinit. More specifically, different Cinit is determined by different final subgroup numbers, and different PEIs are further determined (such as the PEI is a sub-groupspecific PEI and a common PEI).

[0680] The PEI is used to indicate the paging status of the terminal device, including: the PEI indicates the presence or absence of paging of the terminal device, that is, whether the terminal device has paging or not, the network device needs to send the PEI for indication. If the PEI indicates the presence of paging of the terminal device, that is, only when the terminal device has paging, the network device sends the PEI for indication; if the PEI indicates the absence of paging of the terminal device, that is, only when the terminal device has paging, the network device sends the PEI for indication.

[0681] Step 4: The terminal device detects or receives the PEI.

[0682] In this embodiment, the network device can send one of multiple sub-group specific PEIs and common PEIs on the PEI resource. Of course, the PEI resource locations corresponding to the multiple sub-group specific PEIs and common PEIs may not be the same resource location. Different PEIs can have a mapping relationship with different PEI resources, and the mapping relationship can be established through PEI index and PEI resource index. For example, the PEI resource index corresponding to the sub-group specific PEI is 0, at which time the sub-group specific PEI corresponds to the first PEI resource; the PEI resource index corresponding to the common PEI is 1, at which time the common PEI corresponds to the second PEI resource.

[0683] Example 2: The number of POs corresponding to one PEI is 1;

[0684] Step 1: The terminal device determines the subgroup identifier (or initial subgroup number);

[0685] For details, please refer to step 1 of the above embodiment 1, which will not be described again here to avoid repetition.

[0686] Step 2: The terminal device determines a first identifier (or a final subgroup number) according to at least one of the initial subgroup number and the number of subgroups corresponding to a PO;

[0687] The network device can configure the number of subgroups corresponding to a PO for the terminal device, such as the network device carries the number of subgroups corresponding to a PO through high-level signaling; or, the number of subgroups corresponding to a PO can be agreed upon by protocol. For example, the network device can configure the number of subgroups G1 corresponding to a PO for the terminal device through SIB-X, such as G1=8.

[0688] Taking the subgroup number G1=8 corresponding to a PO as an example, the terminal device can determine that the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, 7, or the initial subgroup number is any one of 1, 2, 3, 4, 5, 6, 7, 8.

[0689] The main difference between this second embodiment and the first embodiment is that a subgroup set is introduced, and a subgroup set includes G2 subgroups, 1<G2<G1; optionally, G2=G1 / 2. Optionally, the number of subgroups G2 corresponding to a subgroup set can be configured by the network device or agreed upon by the protocol. Among them, the network device configuration or protocol agreement can be direct or indirect, such as directly configuring or agreeing on the number of subgroups G2 corresponding to a subgroup set, or configuring or agreeing on the number of subgroup sets, etc., and it can also be determined by the PEI indication level configured by the network device, etc. The embodiments of the present invention are not limited to this.

[0690] For example, the terminal device determines the final sub-number according to at least one of the initial sub-group number and the number of sub-groups corresponding to a PO, including at least one of the following:

[0691] Determining a final subgroup number according to the initial subgroup number corresponding to the terminal device;

[0692] Determine a final subgroup number according to the initial subgroup number, G1 and G2 corresponding to the terminal device;

[0693] Based on G1 and G2, the final subgroup number is determined.

[0694] Among them, the behavior of the network device is as follows: when there is only one subgroup in the current paging opportunity with a terminal device that needs to be paged, the network device sends a sub-group specific PEI (i.e., a first type of PEI, and the first type of PEI is related to the final subgroup number determined according to the initial subgroup number corresponding to the terminal device) on the PEI resource; when there are two or more subgroups in the current paging opportunity with terminal devices that need to be paged, and the two or more subgroups belong to the same subgroup set, the network device sends a sub-group set PEI (i.e., a third type of PEI, and the third type of PEI is related to the final subgroup number determined according to the initial subgroup number corresponding to the terminal device, G1 and G2) on the PEI resource; when there are two or more subgroups in the current paging opportunity with terminal devices that need to be paged, and the two or more subgroups belong to different subgroup sets, the network device sends a common PEI (i.e., a second type of PEI, and the second type of PEI is related to the final subgroup number determined according to G1 and G2) on the PEI resource. A network device can send any of G1 possible sub-group specific PEIs, G1 / G2 sub-group set PEIs, and 1 common PEI on a PEI resource.

[0695] Among them, the behavior of the terminal device is as follows: the terminal device detects in the PEI resource any one of the sub-group specific PEI, sub-group set PEI and common PEI corresponding to the terminal device. If the terminal device detects its corresponding sub-group specific PEI, the terminal device needs to receive a paging message in the corresponding PO, and the sub-group specific PEI will only instruct the terminal devices in one subgroup in the PO to receive the corresponding paging message. If the terminal device detects its corresponding sub-group set PEI, the terminal device needs to receive a paging message in the corresponding PO, and the sub-group specific PEI will instruct the terminal devices in G2 subgroups in the same subgroup set in the PO to receive the corresponding paging message. If the terminal device detects the common PEI, the terminal device needs to receive a paging message in a subsequent PO. Since the common PEI is common to all subgroups in the PO, the common PEI can indicate that the terminal devices in all subgroups in the PO need to receive the corresponding paging message.

[0696] In this embodiment, when there is only one subgroup with paging in the PO, the paging status of the terminal device is indicated by the sub-group specific PEI; when there are multiple subgroups belonging to the same subgroup set in the PO and there is paging, the paging status of the terminal device is indicated by the sub-group set PEI; when there are multiple subgroups belonging to different subgroup sets in the PO and there is paging, the paging status of the terminal device is indicated by the common PEI.

[0697] Optionally, the network device may configure the indication level X corresponding to the PEI through SIB-X. For example, the PEI indication level corresponding to this embodiment may be 2, that is, X = 2. The terminal device and the network device may understand each other through the alignment of the PEI indication level.

[0698] After the terminal device has determined the initial subgroup number, it needs to determine the final subgroup number (sub-group final) based on the initial subgroup number, the number of subgroups corresponding to a PO, and the number of subgroups corresponding to a subgroup set, and determine the sub-group specific PEI, sub-group set PEI and common PEI based on the final subgroup number.

[0699] In this embodiment, the final subgroup number corresponding to the sub-group specific PEI is the initial subgroup number (sub-group_init) corresponding to the sub-group; the final subgroup number Y corresponding to the sub-group set PEI can be obtained by the formula: Y = G1 + floor (sub-group_init / (G1 / 2 X-1 ) or by the formula: Y = G1 + floor (sub-group_init / G2); the final sub-group number corresponding to the common PEI can be determined by the formula: Y = G1 + 2 X-1 Determine, or determine by the formula: Y=G1+floor(G1 / G2).

[0700] As shown in Table 2, in this embodiment, the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, 7, and G2=G1 / 2 is used as an example.

[0701] Table 2

[0702]

[0703]

[0704] Step 3: The terminal device determines a PEI for indicating a paging situation of the terminal device according to the final subgroup number;

[0705] For details, please refer to step 3 of the above embodiment 1, which will not be described again here to avoid repetition.

[0706] Step 4: The terminal device detects or receives the PEI.

[0707] In this embodiment, the network device may send one of multiple sub-group specific PEIs, multiple sub-group set PEIs and common PEIs on the PEI resource. Of course, the PEI resource locations corresponding to the multiple sub-group specific PEIs, multiple sub-group set PEIs and common PEIs may not be the same resource location. Different types of PEIs may have a mapping relationship with different PEI resources, and the mapping relationship can be established through PEI index and PEIresource index. For example, the PEI resource index corresponding to the sub-group specific PEI is 0, at which time the sub-group specific PEI corresponds to the first PEI resource; the PEI resource index corresponding to the multiple sub-group set PEIs and common PEI is 1, at which time the sub-group set PEI and common PEI correspond to the second PEI resource.

[0708] Example 3: The number of POs corresponding to one PEI is 1;

[0709] Step 1: The terminal device determines the subgroup identifier (or initial subgroup number);

[0710] For details, please refer to step 1 of the above embodiment 1, which will not be described again here to avoid repetition.

[0711] Step 2: The terminal device determines a first identifier (or a final subgroup number) according to at least one of the initial subgroup number and the number of subgroups corresponding to a PO;

[0712] The network device can configure the number of subgroups corresponding to a PO for the terminal device, such as the network device carries the number of subgroups corresponding to a PO through high-level signaling; or, the number of subgroups corresponding to a PO can be agreed upon by protocol. For example, the network device can configure the number of subgroups G1 corresponding to a PO for the terminal device through SIB-X, such as G1=8.

[0713] Taking the subgroup number G1=8 corresponding to a PO as an example, the terminal device can determine that the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, 7, or the initial subgroup number is any one of 1, 2, 3, 4, 5, 6, 7, 8.

[0714] The main difference between this embodiment 3 and the embodiment 1 is that: a first subgroup set and a second subgroup set are introduced, and the second subgroup set includes the first subgroup set; wherein the level of the first subgroup set is 1, and the first subgroup set includes G21 subgroups, and the level of the second subgroup set is 2, and the second subgroup set includes G22 subgroups; 1<G21<G22<G1. Optionally, G21=G1 / 4, G22=G1 / 2. Optionally, the number of subgroups G21 corresponding to a first subgroup set and the number of subgroups G22 corresponding to a second subgroup set can be configured by a network device or agreed upon by a protocol. Among them, the network device configuration or protocol agreement can be a direct or indirect method, such as directly configuring or agreeing on the number of subgroups G21 corresponding to a first subgroup set and the number of subgroups G22 corresponding to a second subgroup set, or configuring or agreeing on the number of the first subgroup set and the number of the second subgroup set, etc., or it can be determined by the PEI indication level configured by the network device, etc., and the embodiments of the present invention are not limited thereto.

[0715] For example, the terminal device determines the final sub-number according to at least one of the initial sub-group number and the number of sub-groups corresponding to a PO, including at least one of the following:

[0716] Determining a final subgroup number according to the initial subgroup number corresponding to the terminal device;

[0717] Determine a final subgroup number according to the initial subgroup number corresponding to the terminal device, the G1 and the G21;

[0718] Determine a final subgroup number according to the initial subgroup number corresponding to the terminal device, the G1, the G21 and the G22;

[0719] The final subgroup number is determined based on G1, G21 and G22.

[0720] Among them, the network device behavior is as follows: when there is only one subgroup in the current paging opportunity with a terminal device that needs to be paged, the network device sends sub-group specific PEI (i.e., the first type PEI, and the first type PEI is related to the final subgroup number determined according to the initial subgroup number corresponding to the terminal device) on the PEI resource; when there are two or more subgroups in the current paging opportunity with terminal devices that need to be paged, and the two or more subgroups belong to the same first subgroup set, the network device sends sub-group set PEI_level1 (i.e., the third type PEI of the first level, and the third type PEI of the first level is related to the final subgroup number determined according to the initial subgroup number corresponding to the terminal device, the G1 and the G21) on the PEI resource; when there are two or more subgroups in the current paging opportunity with terminal devices that need to be paged, and the two or more subgroups belong to different first subgroup sets but belong to the same second subgroup set, the network device sends sub-group set PEI_level2 on the PEI resource. PEI_level2 (i.e., the third type PEI of the second level, and the third type PEI of the second level is related to the final subgroup number determined according to the initial subgroup number corresponding to the terminal device, the G1, the G21, and the G22); when there are two or more subgroups in the current paging opportunity with terminal devices that need to be paged, and the two or more subgroups belong to different second subgroup sets, the network device sends a common PEI (i.e., the second type PEI, and the second type PEI is related to the final subgroup number determined according to the G1, G21, and G22) on the PEI resource. Therefore, the network device may send any one of G1 possible sub-group specific PEIs, several sub-group set PEI_level1s, several sub-group set PEI_level2s, and 1 common PEI on the PEI resource.

[0721] Among them, the terminal device behavior is as follows: the terminal device detects in the PEI resource, at least one of the sub-group specific PEI, sub-group set PEI_level1, sub-group set PEI_level2 and commonPEI corresponding to the terminal device. If the terminal device detects its corresponding sub-group specific PEI, the terminal device needs to receive a paging message in the corresponding PO, and the sub-group specific PEI will only instruct the terminal devices in a subgroup in the PO to receive the corresponding paging message. If the terminal device detects its corresponding sub-group set PEI_level1, the terminal device needs to receive a paging message in the corresponding PO, and the sub-group specific PEI_level1 will instruct the terminal devices in G21 subgroups in the same first subgroup set in the PO to receive the corresponding paging message. If the terminal device detects its corresponding sub-group set PEI_level2, the terminal device needs to receive a paging message in the corresponding PO, and the sub-group specific PEI_level2 will instruct the terminal devices in G22 subgroups in the same second subgroup set in the PO to receive the corresponding paging message. If the terminal device detects the common PEI, the terminal device needs to receive a paging message in a subsequent PO. Since the common PEI is common to all subgroups in the PO, the common PEI can indicate that the terminal devices in all subgroups in the PO need to receive the corresponding paging message.

[0722] Optionally, the network device may configure the indication level X corresponding to the PEI through SIB-X. For example, the PEI indication level corresponding to this embodiment may be 3, that is, X = 3. The terminal device and the network device may understand each other through the alignment of the PEI indication level.

[0723] After the terminal device has determined the initial subgroup number, it needs to determine the final subgroup number (sub-group final) based on the initial subgroup number, the subgroup number G1 corresponding to a PO, the subgroup number G21 corresponding to a first subgroup set, and the subgroup number G22 corresponding to a second subgroup set, and determine the sub-groupspecific PEI, sub-group set PEI_level1, sub-group set PEI_level2 and common PEI based on the final subgroup number.

[0724] In this embodiment, the final subgroup number corresponding to the sub-group specific PEI is the initial subgroup number (sub-group_init) corresponding to the sub-group; the final subgroup number Y corresponding to the sub-group set PEI_level1 can be obtained by the formula: Y = G1 + floor (sub-group_init / (G1 / 2 X-1 ) or by the formula: Y = G1 + floor (sub-group_init / G21); the final sub-group number Y corresponding to sub-group set PEI_level2 can be determined by the formula: Y = G1 + 2 X-1 +floor(sub-group_init / (G1 / 2 X-2 ) or determined by the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22); the final sub-group number Y corresponding to common PEI can be determined by the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22).

[0725] As shown in Table 3, in this embodiment, the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, 7, G21 = G1 / 4, G22 = G1 / 2 for example.

[0726] Table 3

[0727]

[0728] Step 3: The terminal device determines a PEI for indicating a paging situation of the terminal device according to the final subgroup number;

[0729] For details, please refer to step 3 of the above embodiment 1, which will not be described again here to avoid repetition.

[0730] Step 4: The terminal device detects or receives the PEI.

[0731] In this embodiment, the network device can send one of multiple sub-group specific PEIs, multiple sub-group set PEI_level1s, multiple sub-group set PEI_level2s, and common PEIs on one PEI resource. Of course, the PEI resource locations corresponding to multiple sub-group specific PEIs, multiple sub-group set PEI_level1s, multiple sub-group set PEI_level2s, and common PEIs may not be the same resource location. Different types of PEIs can have a mapping relationship with different PEI resources, and the mapping relationship can be established through PEI index and PEIresource index. For example, the PEI resource index corresponding to sub-group specific PEI is 0, at this time, sub-group specific PEI corresponds to the first PEI resource; the PEI resource index corresponding to multiple sub-group set PEI_level1 and multiple sub-group set PEI_level2 is 1, at this time, sub-group set PEI_level1 and sub-group set PEI_level2 correspond to the second PEI resource; the PEI resourceindex corresponding to common PEI is 2, at this time, common PEI corresponds to the third PEI resource.

[0732] Embodiment 4: The number of POs corresponding to one PEI is greater than 1;

[0733] Step 1: The terminal device determines the subgroup identifier (or initial subgroup number);

[0734] For details, please refer to step 1 of the above embodiment 1, which will not be described again here to avoid repetition.

[0735] Step 2: The terminal device determines a first identifier (or a final subgroup number) according to at least one of the initial subgroup number, the number of subgroups corresponding to a PO, and the number of POs corresponding to a PEI;

[0736] The network device can configure a number of subgroups corresponding to a PO and a number of POs corresponding to a PEI for the terminal device, such as the network device carries a number of subgroups corresponding to a PO and a number of POs corresponding to a PEI through high-level signaling; or, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI can be agreed upon through a protocol. For example: the network device can configure a number of subgroups G1 corresponding to a PO and a number of POs N1 corresponding to a PEI for the terminal device through SIB-X, such as G1=8, N1=4.

[0737] Optionally, the number of subgroups contained in each PO corresponding to one PEI may be the same or different; for example, one PEI corresponds to PO1, PO2, PO3 and PO4, and the number of subgroups included is M1, M2, M3 and M4 respectively; of course, the embodiment of the present invention is not limited to this.

[0738] Taking the subgroup number G1=8 corresponding to a PO as an example, the terminal device can determine that the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, 7, or the initial subgroup number is any one of 1, 2, 3, 4, 5, 6, 7, 8.

[0739] For example, the terminal device determines the final subgroup number according to at least one of the initial subgroup number, the number of subgroups corresponding to a PO and the number of POs corresponding to a PEI, including:

[0740] Determine the final subgroup number according to the initial subgroup number corresponding to the terminal device and the number of subgroups corresponding to a PO;

[0741] Determine the final subgroup number according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier (PO_index) of the PO corresponding to the terminal device in the N1 POs;

[0742] The final subgroup number is determined according to the N1 and the G1.

[0743] The network device behavior is as follows: as long as there are two or more terminal devices in the N1 POs corresponding to the current PEI that need to be paged, the network device sends a common PEI (i.e., the fourth type PEI) on the PEI resource, and the fourth type PEI is related to the final subgroup number determined according to the N1 and the G1, such as Fig. 9The common PEI can page the terminal devices corresponding to all POs; when only one terminal device in the multiple POs corresponding to a PEI needs to be paged, and there are two or more terminal devices corresponding to subgroups in the PO that need to be paged, the network device sends a PO-level PEI (i.e., a second type of PEI, and the second type of PEI is related to the final subgroup number determined according to the G1, the N1 and the first PO identifier, such as Fig. 9 Seq_PO1, Seq_PO2, Seq_PO3 or Seq_PO4 shown), that is, a public energy-saving signal / information exclusive to a PO; when only one terminal device in a PO among multiple POs corresponding to a PEI needs to be paged, and only one terminal device corresponding to a subgroup in this PO needs to be paged, the network device sends a sub-group specific PEI (that is, a first type of PEI) on the PEI resource, and the first type of PEI is related to the final subgroup number determined according to the initial subgroup number corresponding to the terminal device and the number of subgroups corresponding to a PO, such as Fig. 9 seq_goup1,…,seq_group8) shown, that is, the energy-saving signal / information exclusive to the sub-group.

[0744] Among them, the terminal device behavior is as follows: the terminal device detects in the PEI resource, at least one of the sub-group specific PEI, PO-level PEI, and common PEI corresponding to the terminal device. If the terminal device detects its corresponding sub-group specific PEI, the terminal device needs to receive a paging message in the corresponding PO, and the sub-group specific PEI will only instruct the terminal devices in a subgroup in the PO to receive the corresponding paging message. If the terminal device detects its corresponding PO-level PEI, the terminal device needs to receive a paging message in the corresponding PO, and the PO-level PEI will instruct all terminal devices in a PO to receive the corresponding paging message. If the terminal device detects the common PEI, the terminal device needs to receive a paging message in a subsequent PO. Since the common PEI is common to all subgroups in all POs corresponding to one PEI, the common PEI can indicate that the terminal devices in all subgroups in these N1 POs need to receive the corresponding paging message.

[0745] After the terminal device has determined the initial sub-group number, it needs to determine the final sub-group number (sub-group final) based on the initial sub-group number, the number of sub-groups corresponding to a PO, the number of POs corresponding to a PEI and at least one of the first PO identifiers, and determine the sub-group specific PEI, PO-level PEI and common PEI based on the final sub-group number.

[0746] Among multiple POs corresponding to a PEI, when the number of subgroups corresponding to each PO is the same and is G1: the final subgroup number Y corresponding to the sub-group specific PEI can be determined by the formula: Y=PO_index*G1+sub-group_init, or by the formula: Y=A1*G1+M1; A1 is a positive integer, or A1 is related to PO_index, and M1 is related to the initial subgroup number of the terminal device; the final subgroup number Y corresponding to the PO-level PEI can be determined by the formula: Y=N1*G1+PO_index, or by the formula: Y=N1*G1+M2, and M2 is related to the first PO identifier; the final subgroup number Y corresponding to the Common PEI can be determined by the formula: Y=(N1+1)*G1, or by the formula: Y=(N1+N0)*G1, and N0 is a positive integer.

[0747] Among them, PO_Index = (SFN_PF*N*Ns / T+i_s)mod N1, PO_Index is the index of the PO corresponding to the terminal device in N1 POs, SFN_PF is the frame number of the PF where the PO is located, N represents the number of PFs in a DRX cycle, Ns represents the number of POs in a PF, T is the DRX cycle length, i_s is the index corresponding to the PO, and N1 is the number of POs corresponding to 1 PEI.

[0748] As shown in Table 4, in this embodiment, the initial subgroup number is any one of 0, 1, 2, 3, 4, 5, 6, and 7, and each PO includes the same number of subgroups for example.

[0749] Table 4

[0750]

[0751]

[0752] In the case where one PEI corresponds to N1=4 POs, namely PO1, PO2, PO3 and PO4, and the number of subgroups corresponding to PO1, PO2, PO3 and PO4 are K1, K2, K3 and K4 respectively:

[0753] The final sub-group number Y corresponding to sub-group specific PEI can be determined by the following formula:

[0754] For PO1, its index PO_index=0, and the corresponding final sub-group number Y=sub-group_init;

[0755] For PO2, its index PO_index=1, and the corresponding final sub-group number Y=K1+sub-group_init;

[0756] For PO3, its index PO_index=2, and the corresponding final sub-group number Y=K1+K2+sub-group_init;

[0757] For PO4, its index PO_index=3, and the corresponding final sub-group number Y=K1+K2+K3+sub-group_init;

[0758] The final subgroup number Y corresponding to the PO-level PEI can be determined by the formula Y = K1 + K2 + K3 + K4 + PO_index;

[0759] The final subgroup number Y corresponding to Common PEI can be determined by the formula: Y=K1+K2+K3+K4+N1.

[0760] Step 3: The terminal device determines a PEI for indicating a paging situation of the terminal device according to the final subgroup number;

[0761] For details, please refer to step 3 of the above embodiment 1, which will not be described again here to avoid repetition.

[0762] Step 4: The terminal device detects or receives the PEI.

[0763] In this embodiment, the network device can send one of multiple sub-group specific PEIs, multiple PO-level PEIs and common PEIs on one PEI resource; of course, the PEI resource locations corresponding to multiple sub-group specific PEIs, PO-level PEIs and common PEIs may not be the same resource location. Different types of PEIs can have a mapping relationship with different PEI resources, and the mapping relationship can be established through PEI index and PEI resource index. For example, the PEI resource index corresponding to the sub-group specific PEI is 0, at which time the sub-groupspecific PEI corresponds to the first PEI resource; the PEI resource index corresponding to multiple PO-level PEIs is 1, at which time the PO-level PEI corresponds to the second PEI resource; the PEI resource index corresponding to the common PEI is 2, at which time the commonPEI corresponds to the third PEI resource.

[0764] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0765] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0766] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0767] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0768] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0769] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for transmitting information, It is characterized in that include: The terminal device determines a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a PO number corresponding to a paging advance indication PEI; The terminal device receives or detects the PEI sent by the network device; wherein the PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier; Wherein, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI; The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup; The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO; The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1; The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3 = N1*G1, N1 is the number of POs corresponding to one PEI; Wherein, when the PEI is a first type PEI, the terminal device determines the first identifier, including: If the number of POs corresponding to a PEI is 1, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device; If the number of POs corresponding to one PEI is greater than 1, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

2. The method according to claim 1, It is characterized in that When the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device; or, When the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1; Wherein, Y is the first identifier; A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs; M1 is related to the subgroup identifier corresponding to the terminal device.

3. The method according to claim 1, It is characterized in that When the PEI is a second type PEI, the terminal device determines the first identifier, including: The terminal device determines the first identifier according to G1; or, The terminal device determines the first identifier according to the G1 and the G2; or, The terminal device determines the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of the terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of the terminal devices corresponding to G22 subgroups, 1<G21<G22<G1; or, The terminal device determines the first identifier according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

4. The method according to claim 3, It is characterized in that When the terminal device determines the first identifier according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer; When the terminal device determines the first identifier according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2); When the terminal device determines the first identifier according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22); When the terminal device determines the first identifier based on the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

5. The method according to claim 1, It is characterized in that When the PEI is a third type PEI, the terminal device determines the first identifier, including: The terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2; or, The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups; If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the terminal device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G21; If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the terminal device determines the first identifier based on the subgroup identifier corresponding to the terminal device, G1, G21 and G22; wherein 1<G21<G22<G1.

6. The method according to claim 5, It is characterized in that When the terminal device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device; When the terminal device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21); When the terminal device determines the first identifier based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

7. The method according to claim 1, It is characterized in that When the PEI is a fourth type PEI, the terminal device determines the first identifier, including: The terminal device determines the first identifier according to the N1 and the G1.

8. The method according to claim 7, It is characterized in that When the terminal device determines the first identifier according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1; Wherein, Y is the first identifier, and N0 is a positive integer.

9. The method according to any one of claims 2 to 4, It is characterized in that Also includes: The terminal device determines the first PO identifier according to the paging parameter; The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

10. The method according to claim 9, It is characterized in that The first PO identifier satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1; Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

11. The method according to claim 1, It is characterized in that The PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI; The terminal device receives or detects the PEI sent by the network device, including: The terminal device receives or detects the first PEI sent by the network device on the first time-frequency resource; The terminal device receives or detects the second PEI sent by the network device on the second time-frequency resource.

12. The method according to claim 1, It is characterized in that Also includes: The terminal device receives a first signaling sent by a network device; The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

13. A method for transmitting information, It is characterized in that include: The network device determines a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a PO number corresponding to a paging advance indication PEI; The network device sends a PEI to the terminal device; wherein the PEI is used to indicate the paging status of the terminal device, and the PEI is related to the first identifier; Wherein, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI; The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup; The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO; The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1; The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3 = N1*G1, N1 is the number of POs corresponding to one PEI; Wherein, when the PEI is a first type PEI, the network device determines a first identifier, including: If the number of POs corresponding to a PEI is 1, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device; If the number of POs corresponding to one PEI is greater than 1, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

14. The method according to claim 13, It is characterized in that When the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the first identifier is the subgroup identifier corresponding to the terminal device; or, When the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to a PO, the first identifier satisfies the formula: Y=A1*G1+M1; Wherein, Y is the first identifier; A1 is related to at least one of a target value and a first PO identifier, the target value is a positive integer, and the first PO identifier is an identifier of the PO corresponding to the terminal device in the N1 POs; M1 is related to the subgroup identifier corresponding to the terminal device.

15. The method according to claim 13, It is characterized in that When the PEI is a second type PEI, the network device determines the first identifier, including: The network device determines the first identifier according to G1; or, The network device determines the first identifier according to the G1 and the G2; or, The network device determines the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of the terminal devices corresponding to the G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of the terminal devices corresponding to the G22 subgroups, 1<G21<G22<G1; or, The network device determines the first identifier according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device among the N1 POs.

16. The method according to claim 15, It is characterized in that When the network device determines the first identifier according to G1, the first identifier satisfies the formula: Y=G1+M1; wherein Y is the first identifier, and M1 is 0 or a positive integer; When the network device determines the first identifier according to G1 and G2, the first identifier satisfies the formula: Y=G1+floor(G1 / G2); When the network device determines the first identifier according to G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(G1 / G22); When the network device determines the first identifier according to the G1, the N1 and the first PO identifier, the first identifier satisfies the formula: Y=N1*G1+M2; wherein M2 is related to the first PO identifier.

17. The method according to claim 13, It is characterized in that When the PEI is a third type PEI, the network device determines the first identifier, including: The network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2; or, The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups; If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G21; If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to the G22 subgroups, the network device determines the first identifier according to the subgroup identifier corresponding to the terminal device, the G1, the G21 and the G22; Among them, 1<G21<G22<G1.

18. The method according to claim 17, It is characterized in that When the network device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G2, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G2); wherein Y is the first identifier, and sub-group_init is the sub-group identifier corresponding to the terminal device; When the network device determines the first identifier according to the sub-group identifier corresponding to the terminal device, G1 and G21, the first identifier satisfies the formula: Y=G1+floor(sub-group_init / G21); When the network device determines the first identifier based on the sub-group identifier corresponding to the terminal device, G1, G21 and G22, the first identifier satisfies the formula: Y=G1+floor(G1 / G21)+floor(sub-group_init / G22).

19. The method according to claim 13, It is characterized in that When the PEI is a fourth type PEI, the network device determines the first identifier, including: The network device determines the first identifier according to the N1 and the G1.

20. The method according to claim 19, It is characterized in that When the network device determines the first identifier according to N1 and G1, the first identifier satisfies the formula: Y=(N1+N0)*G1; Wherein, Y is the first identifier, and N0 is a positive integer.

21. The method according to any one of claims 14 to 16, It is characterized in that Also includes: The network device determines the first PO identifier according to the paging parameter; The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

22. The method according to claim 21, It is characterized in that The first PO identifier satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1; Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

23. The method according to claim 13, It is characterized in that The PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI; The network device sends the PEI to the terminal device, including: The network device sends the first PEI to the terminal device on the first time-frequency resource; The network device sends the second PEI to the terminal device on the second time-frequency resource.

24. The method according to claim 13, It is characterized in that Also includes: The network device sends a first signaling to the terminal device; The first signaling is used to indicate that the PEI includes at least one of a first type PEI, a second type PEI, a third type PEI, and a fourth type PEI.

25. An information transmission device, It is characterized in that Including memory, transceiver, processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: Determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a paging advance indication PEI corresponding to a PO number; Receiving or detecting a PEI sent by a network device; wherein the PEI is used to indicate a paging condition of the terminal device, and the PEI is related to the first identifier; Wherein, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI; The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup; The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO; The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1; The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3 = N1*G1, N1 is the number of POs corresponding to one PEI; Wherein, when the PEI is a first type PEI, the processor is configured to read the computer program in the memory and perform the following operations: If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device; If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

26. The device according to claim 25, It is characterized in that When the PEI is a second type PEI, the processor is configured to read the computer program in the memory and perform the following operations: Determine the first identifier according to G1; or, Determine the first identifier according to the G1 and the G2; or, Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups, 1<G21<G22<G1; or, Determine the first identifier according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device in the N1 POs; When the PEI is a third type PEI, the processor is configured to read the computer program in the memory and perform the following operations: determining the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2; or, The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups; If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21; If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, G1, G21 and G22; wherein 1<G21<G22<G1; When the PEI is a fourth type PEI, the processor is configured to read the computer program in the memory and perform the following operations: The first identifier is determined according to the N1 and the G1.

27. The device according to claim 26, It is characterized in that The processor is configured to read the computer program in the memory and perform the following operations: Determine the first PO identifier according to the paging parameter; The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

28. The device according to claim 27, It is characterized in that The first PO identifier satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1; Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

29. The device according to claim 25, It is characterized in that The PEI includes a first PEI and a second PEI, and the time-frequency resources of the PEI include a first time-frequency resource and a second time-frequency resource; wherein the index of the first time-frequency resource is related to the index of the first PEI, and the index of the second time-frequency resource is related to the index of the second PEI; The processor is configured to read the computer program in the memory and perform the following operations: Receiving or detecting the first PEI sent by the network device on the first time-frequency resource; The second PEI sent by the network device is received or detected on the second time-frequency resource.

30. A terminal device, It is characterized in that include: A first determining unit, configured to determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a number of subgroups corresponding to a paging opportunity PO, and a number of POs corresponding to a paging advance indication PEI; A processing unit, configured to receive or detect a PEI sent by a network device; wherein the PEI is used to indicate a paging condition of the terminal device, and the PEI is related to the first identifier; Wherein, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI; The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup; The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO; The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1; The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3 = N1*G1, N1 is the number of POs corresponding to one PEI; Wherein, when the PEI is a first type PEI, the first determining unit is further configured to: If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device; If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

31. An information transmission device, It is characterized in that Including memory, transceiver, processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: Determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to the terminal device, a subgroup number corresponding to a paging opportunity PO, and a paging advance indication PEI corresponding to a PO number; Sending a PEI to a terminal device; wherein the PEI is used to indicate a paging condition of the terminal device, and the PEI is related to the first identifier; Wherein, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI; The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup; The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO; The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1; The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3 = N1*G1, N1 is the number of POs corresponding to one PEI; Wherein, when the PEI is a first type PEI, the processor is configured to read the computer program in the memory and perform the following operations: If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device; If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

32. The device according to claim 31, It is characterized in that When the PEI is a second type PEI, the processor is configured to read the computer program in the memory and perform the following operations: Determine the first identifier according to G1; or, Determine the first identifier according to the G1 and the G2; or, Determine the first identifier according to G1, G21 and G22; wherein the third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups, 1<G21<G22<G1; or, Determine the first identifier according to the G1, the N1 and the first PO identifier; wherein the first PO identifier is the identifier of the PO corresponding to the terminal device in the N1 POs; When the PEI is a third type PEI, the processor is configured to read the computer program in the memory and perform the following operations: Determine the first identifier according to the subgroup identifier corresponding to the terminal device, the G1 and the G2; or, The third type PEI includes a first level third type PEI for indicating the paging conditions of terminal devices corresponding to G21 subgroups, and / or the third type PEI includes a second level third type PEI for indicating the paging conditions of terminal devices corresponding to G22 subgroups; If the third type PEI includes a first level third type PEI for indicating the paging status of the terminal devices corresponding to the G21 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, the G1 and the G21; If the third type PEI includes a second level third type PEI for indicating the paging status of the terminal devices corresponding to G22 subgroups, the first identifier is determined according to the subgroup identifier corresponding to the terminal device, G1, G21 and G22; wherein 1<G21<G22<G1; When the PEI is a fourth type PEI, the processor is configured to read the computer program in the memory and perform the following operations: The first identifier is determined according to the N1 and the G1.

33. The device according to claim 32, It is characterized in that The processor is configured to read the computer program in the memory and perform the following operations: Determine the first PO identifier according to the paging parameter; The paging parameters include: at least one of the number of paging frames in a discontinuous reception DRX cycle, the number of paging opportunities in a paging frame, the length of the DRX cycle, the index of the paging opportunity in the paging frame, and the system frame number of the paging frame corresponding to the paging opportunity.

34. The device according to claim 33, It is characterized in that The first PO identifier satisfies the formula: PO_Index=(SFN_PF*N*Ns / T+i_s)mod N1; Among them, PO_Index represents the first PO identifier, SFN_PF represents the system frame number of the paging frame corresponding to the paging opportunity, N represents the number of paging frames in a DRX cycle, Ns represents the number of paging opportunities in a paging frame, T represents the length of the DRX cycle, and i_s represents the index of the paging opportunity in the paging frame.

35. A network device, It is characterized in that include: A first determining unit, configured to determine a first identifier; wherein the first identifier is related to at least one of a subgroup identifier corresponding to a terminal device, a number of subgroups corresponding to a paging opportunity PO, and a number of POs corresponding to a paging advance indication PEI; A first sending unit, configured to send a PEI to a terminal device; wherein the PEI is used to indicate a paging condition of the terminal device, and the PEI is related to the first identifier; Wherein, the PEI includes: at least one of a first type PEI, a second type PEI, a third type PEI and a fourth type PEI; The first type PEI is used to indicate the paging status of the terminal device corresponding to one subgroup; The second type PEI is used to indicate the paging status of terminal devices corresponding to G1 subgroups; where G1 is the number of subgroups corresponding to a PO; The third type PEI is used to indicate the paging status of the terminal devices corresponding to the G2 subgroups; wherein 1<G2<G1; The fourth type PEI is used to indicate the paging status of terminal devices corresponding to G3 subgroups; wherein G3 = N1*G1, N1 is the number of POs corresponding to one PEI; Wherein, when the PEI is a first type PEI, the first determining unit is further configured to: If the number of POs corresponding to a PEI is 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device; If the number of POs corresponding to one PEI is greater than 1, the first identifier is determined according to the subgroup identifier corresponding to the terminal device and the number of subgroups corresponding to one PO.

36. A processor-readable storage medium, It is characterized in that The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the steps of the information transmission method according to any one of claims 1 to 24.

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