Paging method, network device and terminal device

Abstract

The present application discloses a paging method, a network device and a terminal device, the method comprising: the network device determines a paging time window for paging the terminal device, the paging time window includes S candidate paging time points PO, S is a positive integer greater than 1; the network device monitors whether the carrier on the unlicensed frequency band is idle based on the paging time window. Since the monitoring is not only performed in one PO, but in one paging time window, the network device can have multiple opportunities to send paging messages in one paging cycle, so that when paging is performed on the unlicensed frequency band, the transmission delay of the paging message can be greatly reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless communications, and more specifically, to a paging method, a network device, and a terminal device. Background Art

[0002] For a communication system operating in an unlicensed frequency band, the transmitter needs to use a Listen Before Talk (LBT) method to determine whether the channel is idle before sending a signal. The signal can only be sent after determining that the channel is idle.

[0003] In the Long Term Evolution (LTE) system, the paging message is transmitted at a paging occasion (PO) in the paging radio frame (PF). In the New Radio (NR) system, for the transmission of paging messages in unlicensed frequency bands, if the paging message is still sent in this way, then, since there is only one opportunity to send a paging message in a paging cycle, if the network device fails to seize the channel before sending the paging message, the paging message can only be postponed until the network device successfully seizes the channel, resulting in a larger transmission delay of the paging message. Summary of the invention

[0004] The embodiments of the present application provide a paging method, a network device, and a terminal device, which can reduce the transmission delay of a paging message.

[0005] In a first aspect, a paging method is provided, comprising: a network device determines a paging time window for paging a terminal device, the paging time window comprising S candidate paging times PO, where S is a positive integer greater than 1; the network device monitors whether a carrier on an unlicensed frequency band is idle based on the paging time window.

[0006] In a possible implementation manner, the network device pages the terminal device at a PO in the paging time window according to the monitoring result.

[0007] Therefore, in an embodiment of the present application, when the network device and the terminal device listen on the unlicensed frequency band, they are not just listening in a PO, but listening in a paging time window. Therefore, in one paging cycle, the network device may have multiple opportunities to send paging messages, thereby greatly reducing the sending delay of the paging message when paging is performed on the unlicensed frequency band.

[0008] In a possible implementation, the network device determines a paging time window for paging a terminal device, including: the network device determines a reference PO in a reference paging frame PF for paging the terminal device; the network device sets the reference PO and the preceding M of the reference PO to the reference PO; 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

[0009] In a possible implementation, the index of the reference PO modNs, where UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, and Ns is the number of POs included in a PF. To round down.

[0010] In a possible implementation, the network device determines a paging time position for paging a terminal device, including: the network device selects S POs as the paging time window in at least one radio frame, wherein the at least one radio frame includes a reference PF; or the at least one radio frame includes the reference PF, and the first K of the reference PF 1 radio frames and / or the reference PF's rear K 2 radio frames, where K 1 and K 2 Is a positive integer.

[0011] In a possible implementation, the method further includes: the network device sending second indication information to the terminal device, where the second indication information is used to indicate the positions of the S POs.

[0012] In a possible implementation manner, the network device sends the second indication information to the terminal device, including: the network device sends the second indication information through a carrier on an authorized frequency band.

[0013] In a possible implementation manner, the network device sending the second indication information to the terminal device includes: the network device sending the second indication information through a carrier in an unlicensed frequency band.

[0014] In a possible implementation manner, the second indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

[0015] In a possible implementation, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive the paging message in a paging cycle.

[0016] In a possible implementation, the network device pages the terminal device at a PO in the paging time window based on the listening result, including: the network device sends a first channel carrying a paging message to the terminal device at the one PO in the paging time window based on the listening result, and the first channel includes a control channel and / or a data channel.

[0017] In a possible implementation, the network device sends a first channel carrying a paging message to the terminal device at the one PO in the paging time window based on the listening result, including: the network device determines the paging radio network temporary identifier P-RNTI used to send the first channel based on the position of the one PO in the paging time window; the network device uses the P-RNTI to send the first channel to the terminal device at the one PO in the paging time window.

[0018] In a possible implementation, there is a one-to-one correspondence between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO.

[0019] In a possible implementation, the method further includes: the network device sends first indication information to the terminal device, where the first indication information is used to indicate a mapping relationship between the S candidate POs and the S P-RNTIs.

[0020] In a possible implementation manner, the network device sends the first indication information to the terminal device, including: the network device sends the first indication information through a carrier on an authorized frequency band.

[0021] In a possible implementation manner, the network device sends the first indication information to the terminal device, including: the network device sends the first indication information through a carrier in an unlicensed frequency band.

[0022] In a possible implementation manner, the first indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

[0023] In a second aspect, a paging method is provided, including: a terminal device determines a paging time window used by a network device to page the terminal device, the paging time window includes S candidate paging times PO, S is a positive integer greater than 1; the terminal device listens for paging messages sent by the network device in the candidate paging time window.

[0024] Therefore, in an embodiment of the present application, when the network device and the terminal device listen on the unlicensed frequency band, they are not just listening in a PO, but listening in a paging time window. Therefore, in one paging cycle, the network device may have multiple opportunities to send paging messages, thereby greatly reducing the sending delay of the paging message when paging is performed on the unlicensed frequency band.

[0025] In a possible implementation, the terminal device determines a paging time window used by a network device to page the terminal device, including: the terminal device determines a reference PO in a reference paging frame PF used by the network device to page the terminal device; the terminal device sets the reference PO and the preceding M of the reference PO to the reference PO; 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

[0026] In a possible implementation, the index of the reference PO modNs, where UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, and Ns is the number of POs included in a PF. To round down.

[0027] In a possible implementation, the terminal device determines the paging time window used by the network device to page the terminal device, including: the terminal device selects S POs as the paging time window in at least one wireless frame, wherein the at least one wireless frame includes a reference PF; or the at least one wireless frame includes the reference PF, and the first K of the reference PF 1 radio frames and / or the reference PF's rear K 2 radio frames, where K 1 and K 2 Is a positive integer.

[0028] In one possible implementation, the terminal device selects S POs as the paging time window in at least one wireless frame, including: the terminal device receives second indication information sent by the network device, and the second indication information is used to indicate the locations of the S POs; or the terminal device obtains the location information of the S POs pre-stored in the terminal device.

[0029] In a possible implementation manner, the receiving, by the terminal device, second indication information sent by the network device includes: the receiving, by the terminal device, the second indication information sent by the network device via a carrier on an authorized frequency band.

[0030] In a possible implementation manner, the receiving, by the terminal device, second indication information sent by the network device includes: the receiving, by the terminal device, the second indication information sent by the network device via a carrier in an unlicensed frequency band.

[0031] In a possible implementation manner, the second indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

[0032] In a possible implementation, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive the paging message in a paging cycle.

[0033] In a possible implementation, before the terminal device listens to the paging message sent by the network device in the paging time window, the method further includes: the terminal device receives first indication information sent by the network device, the first indication information is used to indicate the mapping relationship between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO;

[0034] The step of the terminal device listening to the paging message sent by the network device in the paging time window includes: the terminal device listening to the paging message sent by the network device in the paging time window according to the first indication information.

[0035] In a possible implementation manner, the receiving, by the terminal device, first indication information sent by the network device includes: the receiving, by the terminal device, of the first indication information sent by the network device via a carrier on an authorized frequency band.

[0036] In a possible implementation manner, the receiving, by the terminal device, first indication information sent by the network device includes: the receiving, by the terminal device, of the first indication information sent by the network device via a carrier in an unlicensed frequency band.

[0037] In a possible implementation manner, the first indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

[0038] In a third aspect, a terminal device is provided, which can perform the operations of the terminal device in the first aspect or any optional implementation of the first aspect. Specifically, the terminal device may include a module unit for performing the operations of the terminal device in the first aspect or any possible implementation of the first aspect.

[0039] In a fourth aspect, a network device is provided, which can perform the operations of the network device in the second aspect or any optional implementation of the second aspect. Specifically, the network device may include a module unit for performing the operations of the network device in the second aspect or any possible implementation of the second aspect.

[0040] In a fifth aspect, a terminal device is provided, the terminal device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the terminal device to execute the method in the first aspect or any possible implementation of the first aspect, or the execution causes the terminal device to implement the terminal device provided by the third aspect.

[0041] In a sixth aspect, a network device is provided, the network device comprising: a processor, a transceiver and a memory. The processor, the transceiver and the memory communicate with each other through an internal connection path. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the network device to execute the method in the second aspect or any possible implementation of the second aspect, or the execution causes the network device to implement the network device provided in the fourth aspect.

[0042] In a seventh aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a program, wherein the program enables a terminal device to execute the above-mentioned first aspect and any one of the paging methods in various implementations thereof.

[0043] In an eighth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a program, wherein the program enables a network device to execute the above-mentioned second aspect and any one of the paging methods in various implementations thereof.

[0044] In the ninth aspect, a system chip is provided, which includes an input interface, an output interface, a processor and a memory, wherein the processor is used to execute instructions stored in the memory. When the instructions are executed, the processor can implement the method in the aforementioned first aspect or any possible implementation of the first aspect.

[0045] In the tenth aspect, a system chip is provided, which includes an input interface, an output interface, a processor and a memory. The processor is used to execute instructions stored in the memory. When the instructions are executed, the processor can implement the method in the aforementioned second aspect or any possible implementation of the second aspect.

[0046] In an eleventh aspect, a computer program product comprising instructions is provided, and when the computer program product is run on a computer, the computer is caused to execute the method in the above-mentioned first aspect or any possible implementation manner of the first aspect.

[0047] In a twelfth aspect, a computer program product comprising instructions is provided. When the computer program product is run on a computer, the computer is caused to execute the method in the above-mentioned second aspect or any possible implementation manner of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic architecture diagram of an application scenario of an embodiment of the present application.

[0049] Figure 2 It is a schematic flow chart of the paging method of an embodiment of the present application.

[0050] Figure 3 It is a schematic flow chart of a paging method according to another embodiment of the present application.

[0051] Figure 4 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0052] Figure 5 It is a schematic block diagram of a network device according to an embodiment of the present application.

[0053] Figure 6 It is a schematic structural diagram of a communication device according to an embodiment of the present application.

[0054] Figure 7 It is a schematic structural diagram of the system chip of an embodiment of the present application. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0056] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), and future 5G communication systems, etc.

[0057] The present application describes various embodiments in conjunction with terminal devices. Terminal devices may also refer to user equipment (UE), access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication devices, user agents, or user devices. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolving land public mobile communication network (PLMN) network, etc.

[0058] The present application describes various embodiments in conjunction with a network device. The network device may be a device for communicating with a terminal device, for example, a base station (Base Transceiver Station, BTS) in a GSM system or CDMA, a base station (NodeB, NB) in a WCDMA system, or an evolved base station (EvolutionalNode B, eNB or eNodeB) in an LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a network side device in a future evolved PLMN network, etc.

[0059] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application. Figure 1 The communication system in the embodiment may include a network device 10 and a terminal device 20. The network device 10 is used to provide communication services for the terminal device 20 and access the core network. The terminal device 20 can access the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 10, thereby communicating with the network. Figure 1 The arrows shown in may represent uplink / downlink transmissions performed via a cellular link between the terminal device 20 and the network device 10 .

[0060] The network in the embodiment of the present application may refer to a public land mobile network (PLMN) or a device to device (D2D) network or a machine to machine / man (M2M) network or other networks. Figure 1 This is just a simplified diagram for example. The network may also include other terminal devices. Figure 1 Not drawn in.

[0061] When downlink data of the terminal device arrives, the network device can establish a signaling connection from the terminal device to the network device by paging the terminal device, thereby transmitting the downlink data.

[0062] Figure 2 The method shown may be performed by a network device, which may be, for example, Figure 1 The network device 10 shown in FIG. Figure 2 As shown, the paging method includes:

[0063] In 210, the network device determines a paging time window for paging the terminal device, where the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1.

[0064] Optionally, the network device may indicate the value of S to the terminal device, or the value of S may be agreed upon in advance between the network device and the terminal device, for example, through a protocol, and may be stored in the terminal device.

[0065] Optionally, one PO may be one time slot. For example, in a 5G system, one time slot includes 14 symbols, so one PO may include 14 symbols.

[0066] In 220, the network device monitors whether a carrier on the unlicensed frequency band is idle based on the paging time window.

[0067] Specifically, the network device monitors whether the carrier on the unlicensed frequency band is idle in a paging time window. When the carrier on a certain PO in the paging time window is idle, the network device can page the terminal device on the PO. The paging time window includes S candidate POs, and S is a positive integer greater than 1. Therefore, when the network device monitors, it is not just monitoring in one PO, but monitoring in one paging time window. Therefore, in one paging cycle, the network device can have multiple opportunities to send paging messages, so when paging on the unlicensed frequency band, the transmission delay of the paging message can be greatly reduced.

[0068] Optionally, after 220, the method further includes: the network device paging the terminal device on a PO in the paging time window according to the monitoring result.

[0069] It should be understood that the network device monitors whether the carrier on the unlicensed frequency band is idle based on the paging time window. If a certain PO in the paging time window is detected to be idle, the terminal device can be paged on the PO. If no idle PO is detected in the paging time window, then, for example, the network device can listen in the paging time window in the next paging cycle until an idle PO is detected for paging the terminal device.

[0070] The embodiments of the present application provide two methods for determining a paging time window, which are described in detail below.

[0071] Method 1

[0072] Optionally, in 210, the network device determines a paging time window for paging the terminal device, including: the network device determines a reference PO in a reference PF for paging the terminal device; the network device sets the reference PO and the preceding M of the reference PO to a predetermined time window; 1 The PO and / or the suffix of the referenced PO 2 A PO is determined as the paging time window.

[0073] Among them, M1 and M 2 is a positive integer, and M 1 and M 2 can be equal or unequal. And, M 1 and / or M 2 The value of M can be configured by the network device to the terminal device, or 1 and / or M 2 The value of may also be agreed upon in advance by the network device and the terminal device, for example, through a protocol, and may be stored in the terminal device.

[0074] In the reference PF, the time position for paging includes not only the reference PO, but also the S candidate POs in the paging time window. Since the time position for paging is extended based on the reference PO, the paging time window includes the reference PO and the first M candidate POs of the reference PO. 1 The PO and / or the suffix of the referenced PO 2 For example, the S candidate POs include the reference PO and the top M of the reference PO. 1 A continuous PO, or a reference PO and the following PO of the reference PO 2 Continuous POs, or including the reference PO, the previous M of the PO 1 The following M of the continuous PO and the reference PO 2 Continuous PO.

[0075] Wherein, optionally, the index of the reference PO mod Ns, where UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, and Ns is the number of POs included in a PF. To round down.

[0076] Among them, optionally, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID modN), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive the paging message in a paging cycle.

[0077] Specifically, PF is a specific radio frame or system frame, which may include one or more POs. The terminal device may try to receive a paging message at a PO in the PF within its paging cycle. The PO may transmit a physical downlink control channel (PDCCH) that is scrambled with a paging radio network temporary identity (Paging Radio Network Temporary Identity, P-RNTI) and indicates the paging message. The terminal device only needs to detect 1 PO in each paging cycle. In other words, for each terminal device, only 1 subframe can be used to send a paging message in each paging cycle. PF is the system frame used to send the paging message, and PO is the subframe in the PF used to send the paging message. In the embodiment of the present application, the PF whose system frame number satisfies SFN mod T = (T / N) × (UE-ID mod N) is referred to as a reference PF.

[0078] In SFN mod T = (T / N) × (UE-ID 1 mod N), T / N is equivalent to dividing each DRX cycle T into N parts, each of which includes T / N radio frames, where PF is the first radio frame of these T / N radio frames. Therefore, N can be considered as the number of PFs that can be used to receive the paging message in each DRX cycle. N can be determined by N=min(T, nB), where nB can be configured through the System Information Block (SIB), for example, it can be equal to 4T, 2T, T, T / 2, T / 4, T / 8, etc.

[0079] UE-ID mod N indicates that the terminal device selects the UE-ID mod Nth copy among the N copies (0≤UE ID mod N<N). It can be seen that which copy among the N copies is selected by the network device is determined by the device identifier UE-ID of the terminal device. The device identifier UE-ID of the terminal device can be determined by the International Mobile Subscriber Identity (IMSI) of the terminal device, for example, UE ID=IMSI mod 1204. If the terminal device selects the UE-ID mod Nth copy among the N copies, the PF included in the UE-ID mod Nth copy is used. At this time, the system frame number SFN of the PF can be determined according to SFN mod T=(T / N)×(UE-ID 1 mod N) to determine.

[0080] After the reference PF is determined, the network device can determine the reference PO in the reference PF.

[0081] Optionally, the reference PO may be any PO in the reference PF, or the reference PO may be based on mod Ns, where i_s is the index of the reference PO and Ns is the number of POs included in a PF. Based on i_s and Ns, the network device can determine the reference PO by, for example, Table 1 (when frequency division duplex (FDD) is used) or Table 2 (when TDD frequency division duplex (TDD) is used). After the reference PO is determined, it can be combined with M 1 and M 2 The value of determines the candidate S POs, that is, the paging time window.

[0082] Table 1

[0083] N PO when i_s=0 PO when i_s=1 PO when i_s=2 PO when i_s=3 1 9 N / A N / A N / A 2 4 9 N / A N / A 4 0 4 5 9

[0084] Table 2

[0085] N PO when i_s=0 PO when i_s=1 PO when i_s=2 PO when i_s=3 1 0 N / A N / A N / A 2 0 5 N / A N / A 4 0 1 5 6

[0086] Method 2

[0087] Optionally, in 210, the network device determines a paging time position for paging the terminal device, including: the network device selects S POs as the paging time window in at least one radio frame, wherein the at least one radio frame includes a reference PF; or the at least one radio frame includes the reference PF, and the first K of the reference PF 1 Radio frames and / or the reference PF's subsequent K 2 wireless frames.

[0088] Among them, K 1 and K 2 is a positive integer, and K 1 and K 2 can be equal or unequal. And, K 1 and / or K 2 The value of K can be configured by the network device to the terminal device, or 1 and / or K 2 The value of may also be agreed upon in advance by the network device and the terminal device, for example, through a protocol, and may be stored in the terminal device.

[0089] In this embodiment, the network device may select S consecutive POs in the reference PF as the paging time window; or, the network device may select S consecutive POs in the reference PF and the K preceding the reference PF as the paging time window.1 Select S consecutive POs from a wireless frame as the paging time window; alternatively, S consecutive POs can be selected from the reference PF and the subsequent K 2 wireless frames as the paging time window; alternatively, S POs can be selected from the reference PF, the previous K 1 wireless frames of the reference PF, and the subsequent K 2 wireless frames of the reference PF as the paging time window.

[0090] Among them, the determination process of the reference PF can refer to the relevant description in Method 1 for example. For the sake of brevity, it will not be elaborated here.

[0091] Optionally, the method further includes: the network device sends second indication information to the terminal device, and the second indication information is used to indicate the positions of the S POs.

[0092] For example, the network device can indicate the value of S and / or the relative positions of the S POs in the at least one wireless frame (reference PF; or, reference PF, and the previous K 1 wireless frames of the reference PF and / or the subsequent K 2 wireless frames of the reference PF) to the terminal device; or, the value of S and / or the relative positions of the S POs in the at least one wireless frame can be pre-agreed between the network device and the terminal device, for example, through protocol agreement, and can be stored in the terminal device.

[0093] Optionally, when the network device sends the second indication information to the terminal device, it includes: the network device sends the second indication information through a carrier on the authorized frequency band.

[0094] Optionally, when the network device sends the second indication information to the terminal device, it includes: the network device sends the second indication information through a carrier on the unlicensed frequency band.

[0095] Optionally, the second indication information is carried in a broadcast message or RRC signaling.

[0096] After the network device determines the paging time window, it listens on the unlicensed frequency band based on the paging time window, and pages the terminal device in one of the S candidate POs in the paging time window according to the listening result.

[0097] Optionally, in 230, when the network device pages the terminal device on one PO in the paging time window according to the listening result, it includes: the network device sends a first channel carrying a paging message to the terminal device on the one PO in the paging time window according to the listening result, where the first channel includes a control channel and / or a data channel.

[0098] For example, the PO may be used to send a physical downlink shared channel (PDSCH) and / or a physical downlink control channel (PDCCH).

[0099] Among them, if the PO is used to send PDSCH and PDCCH, the PDSCH can be sent at the same time position (occupying the same symbol) as the PDCCH. At this time, the PDSCH and the PDCCH can be frequency-division multiplexed.

[0100] Alternatively, if the PO is used to send PDSCH and PDCCH, PDSCH can be sent at different time positions than PDCCH. For example, PDCCH can be sent first through multiple beams, and then PDSCH can be sent through multiple beams. For example, PDCCH or PDSCH can be sent once on different symbols through the same or different beams, and then PDCCH and PDSCH can be sent once on other different symbols using the same or different beams, and so on.

[0101] Further, optionally, the network device sends a first channel carrying a paging message to the terminal device at the one PO in the paging time window based on the listening result, including: the network device determines the P-RNTI used to send the first channel based on the position of the one PO in the paging time window; the network device uses the P-RNTI to send the first channel to the terminal device at the one PO in the paging time window.

[0102] Optionally, there is a one-to-one correspondence between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO.

[0103] In order to avoid mutual influence between paging messages sent on different POs, different P-RNTIs may be used to circumvent the paging messages sent on different POs.

[0104] For example, if in the reference PF, the paging time window used by the network device to page a terminal device includes the first to third POs, and if at this time, the PO determined based on the device identification of another terminal device is also the third PO, that is, the third PO also needs to be used to page another terminal device, at this time, on the third PO, the network device needs to send control channels and / or data channels containing respective paging messages to two different terminal devices respectively, so the two channels will affect each other and even interfere with each other.

[0105] Therefore, the S candidate POs can be made to correspond one to one with S different P-RNTIs. When the network device determines to perform paging on a certain PO among the S candidate POs based on the monitoring results, the P-RNTI corresponding to the PO can be used to wrap the control channel and / or data channel carrying the paging message. When the POs selected from the S candidate POs for sending the paging message are different, the P-RNTIs used to wrap the first channel carrying the paging message are also different.

[0106] For example, assuming that the S candidate POs include a reference PO and two POs after the reference PO, assuming that the reference PO is the nth PO in the reference PF, and the P-RNTI used by the network device to send a paging message on the reference PO is the first P-RNTI, then the P-RNTI used by the network device to send a paging message on the n+1th PO is the second P-RNTI, and the P-RNTI used to send a paging message on the n+2th PO is the third P-RNTI. The first P-RNT, the second P-RNT, and the third P-RNT are all different. The P-RNTIs used by the network device to send paging messages on different POs are all different.

[0107] Optionally, the method also includes: the network device sends first indication information to the terminal device, and the first indication information is used to indicate a mapping relationship between the S POs and the S P-RNTIs.

[0108] Optionally, the network device sends the first indication information to the terminal device, including: the network device sends the first indication information through a carrier on an authorized frequency band.

[0109] Optionally, the network device sends the first indication information to the terminal device, including: the network device sends the first indication information via a carrier in an unlicensed frequency band.

[0110] Optionally, the first indication information is carried in a broadcast message or Radio Resource Control (RRC) signaling.

[0111] Figure 3 It is a schematic flow chart of the paging method of an embodiment of the present application. Figure 3 The method shown can be executed by a terminal device, which can be, for example, Figure 1 The terminal device 20 shown in FIG. Figure 3 As shown, the paging method includes:

[0112] In 310, the terminal device determines a paging time window used by the network device to page the terminal device, and the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1.

[0113] In 320, the terminal device listens for a paging message sent by the network device in the paging time window.

[0114] Therefore, in the embodiments of the present application, when the network device and the terminal device perform listening on the unlicensed frequency band, since they perform listening not only in one PO but in a paging time window, in one paging cycle, the network device can have multiple opportunities to send paging messages. Thus, when performing paging on the unlicensed frequency band, the transmission delay of the paging message can be greatly reduced.

[0115] Optionally, the terminal device determines the paging time window used by the network device to page the terminal device, including: the terminal device determines a reference PO in the reference paging frame PF used by the network device to page the terminal device; the terminal device determines the reference PO, and the first M 1 POs before the reference PO and / or the last M 2 POs after the reference PO as the paging time window, where M 1 and M 2 are positive integers.

[0116] Optionally, the index of the reference PO mod Ns, where UE-ID is the device identifier of the terminal device, N is the number of PFs available for paging in one paging cycle, and Ns is the number of POs included in one PF, is rounded down.

[0117] Optionally, the terminal device determines the paging time window used by the network device to page the terminal device, including: the terminal device selects S POs as the paging time window in at least one radio frame, where the at least one radio frame includes the reference PF; or the at least one radio frame includes the reference PF, and the first K 1 radio frames before the reference PF and / or the last K 2 radio frames after the reference PF, where K 1 and K 2 are positive integers.

[0118] Optionally, the terminal device selects S POs as the paging time window in at least one radio frame, including: the terminal device receives second indication information sent by the network device, and the second indication information is used to indicate the positions of the S POs; or the terminal device obtains the position information of the S POs pre-stored in the terminal device.

[0119] Optionally, the terminal device receives the second indication information sent by the network device, including: the terminal device receives the second indication information sent by the network device via a carrier on an authorized frequency band.

[0120] Optionally, the terminal device receives the second indication information sent by the network device, including: the terminal device receives the second indication information sent by the network device via a carrier in an unlicensed frequency band.

[0121] Optionally, the second indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

[0122] Optionally, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-IDmod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive the paging message in a paging cycle.

[0123] Optionally, before the terminal device listens to the paging message sent by the network device in the paging time window, the method further includes: the terminal device receives first indication information sent by the network device, the first indication information is used to indicate the mapping relationship between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO;

[0124] The terminal device listens to the paging message sent by the network device in the paging time window, including: the terminal device listens to the paging message sent by the network device in the paging time window according to the first indication information.

[0125] Optionally, the terminal device receives the first indication information sent by the network device, including: the terminal device receives the first indication information sent by the network device via a carrier on an authorized frequency band.

[0126] Optionally, the terminal device receives the first indication information sent by the network device, including: the terminal device receives the first indication information sent by the network device via a carrier in an unlicensed frequency band.

[0127] Optionally, the first indication information is carried in a broadcast message or a unlimited resource control RRC signaling.

[0128] It should be understood that the specific process of the terminal device listening to the paging message sent by the network device can refer to the aforementioned Figure 2 For the sake of brevity, the relevant descriptions of network devices in are not repeated here.

[0129] It should also be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned 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 application.

[0130] The above describes in detail the data retransmission method according to the embodiment of the present application. Figures 4 to 7 , describing the technical features described in the device and method embodiments according to the embodiments of the present application are applicable to the following device embodiments.

[0131] Figure 4 4 is a schematic block diagram of a network device 400 according to an embodiment of the present application. Figure 4 As shown, the network device 400 includes a determination unit 410 and a monitoring unit 420. Among them:

[0132] A determining unit 410, configured to determine a paging time window for paging a terminal device, wherein the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1;

[0133] The monitoring unit 420 is configured to monitor whether a carrier on an unlicensed frequency band is idle based on the paging time window determined by the determining unit 410.

[0134] Therefore, in an embodiment of the present application, when the network device and the terminal device listen on the unlicensed frequency band, they are not just listening in a PO, but listening in a paging time window. Therefore, in one paging cycle, the network device can have multiple opportunities to send paging messages, thereby greatly reducing the sending delay of the paging message when paging is performed on the unlicensed frequency band.

[0135] Optionally, the network device further comprises a sending unit, configured to page the terminal device at a PO in the paging time window according to the listening result of the listening unit 420.

[0136] Optionally, the determining unit 410 is specifically configured to: determine a reference PO in a reference paging frame PF used to perform paging to the terminal device; and 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

[0137] Optionally, the index of the reference PO mod Ns, where UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, and Ns is the number of POs included in a PF. To round down.

[0138] Optionally, the determining unit 410 is specifically configured to: select S POs as the paging time window in at least one radio frame, wherein the at least one radio frame includes a reference PF; or the at least one radio frame includes the reference PF, and the first K of the reference PF 1 radio frames and / or the reference PF's rear K 2 radio frames, where K 1 and K 2 Is a positive integer.

[0139] Optionally, the sending unit is further used to: send second indication information to the terminal device, where the second indication information is used to indicate the positions of the S POs.

[0140] Optionally, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive the paging message in a paging cycle.

[0141] Optionally, the sending unit is specifically used to: send a first channel carrying a paging message to the terminal device on the one PO in the paging time window according to the monitoring result, the first channel including a control channel and / or a data channel.

[0142] Optionally, the determining unit 410 is further configured to: determine a paging radio network temporary identifier P-RNTI used to send the first channel according to a position of the one PO in the paging time window;

[0143] The sending unit is specifically configured to send the first channel to the terminal device on the one PO in the paging time window using the P-RNTI.

[0144] Optionally, there is a one-to-one correspondence between the S candidate POs and S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO.

[0145] Optionally, the sending unit is specifically used to: send first indication information to the terminal device, and the first indication information is used to indicate a mapping relationship between the S candidate POs and the S P-RNTIs.

[0146] It should be understood that the network device 400 may correspond to the network device in the method 200 and may implement the operations implemented by the network device in the method 200 . For the sake of brevity, details will not be given here.

[0147] Figure 5 is a schematic block diagram of a terminal device 500 according to an embodiment of the present application. Figure 5 As shown, the terminal device 500 includes a determination unit 510 and a monitoring unit 520. Among them:

[0148] A determining unit 510 is configured to determine a paging time window used by a network device to perform paging on a terminal device, wherein the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1;

[0149] The monitoring unit 520 is configured to monitor a paging message sent by a network device in the paging time window determined by the determining unit 510.

[0150] Therefore, in an embodiment of the present application, when the network device and the terminal device listen on the unlicensed frequency band, they are not just listening in a PO, but listening in a paging time window. Therefore, in one paging cycle, the network device can have multiple opportunities to send paging messages, thereby greatly reducing the sending delay of the paging message when paging is performed on the unlicensed frequency band.

[0151] Optionally, the determining unit 510 is specifically configured to: determine a reference PO in a reference paging frame PF used by the network device to perform paging on the terminal device; and 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

[0152] Optionally, the index of the reference PO mod Ns, where UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, and Ns is the number of POs included in a PF. To round down.

[0153] Optionally, the determining unit 510 is specifically configured to: select S POs as the paging time window in at least one radio frame, wherein the at least one radio frame includes a reference PF; or the at least one radio frame includes the reference PF, and the first K of the reference PF 1 radio frames and / or the reference PF's rear K 2radio frames, where K 1 and K 2 Is a positive integer.

[0154] Optionally, the determination unit 510 is specifically used to: receive second indication information sent by the network device through the receiving unit, the second indication information being used to indicate the locations of the S POs; or obtain location information of the S POs pre-stored in the terminal device.

[0155] Optionally, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive the paging message in a paging cycle.

[0156] Optionally, the terminal device further includes a receiving unit, configured to: receive first indication information sent by the network device, wherein the first indication information is used to indicate a mapping relationship between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO;

[0157] The monitoring unit 520 is specifically configured to monitor, according to the first indication information, the paging message sent by the network device in the paging time window.

[0158] It should be understood that the terminal device 500 can correspond to the terminal device in the method 300 and can implement the operations implemented by the terminal device in the method 300. For the sake of brevity, it will not be repeated here.

[0159] Figure 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. Figure 6 As shown, the communication device includes a processor 610, a transceiver 620 and a memory 630, wherein the processor 610, the transceiver 620 and the memory 630 communicate with each other through an internal connection path. The memory 630 is used to store instructions, and the processor 610 is used to execute the instructions stored in the memory 630 to control the transceiver 620 to receive or send signals.

[0160] Optionally, the processor 610 may call the program code stored in the memory 630 to execute corresponding operations of the method 200 executed by the network device in the method embodiment, which will not be described in detail here for the sake of brevity.

[0161] Optionally, the processor 610 may call program codes stored in the memory 630 to execute corresponding operations of the method 300 executed by the terminal device in the method embodiment, which will not be described in detail here for the sake of brevity.

[0162] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0163] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0164] Figure 7 It is a schematic structural diagram of the system chip of an embodiment of the present application. Figure 7 The system chip 700 includes an input interface 701, an output interface 702, at least one processor 703, and a memory 704. The input interface 701, the output interface 702, the processor 703, and the memory 704 are interconnected through an internal connection path. The processor 703 is used to execute the code in the memory 704.

[0165] Optionally, when the code is executed, the processor 703 may implement the method 200 executed by the network device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0166] Optionally, when the code is executed, the processor 703 may implement the method 300 executed by the terminal device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0167] It should be understood that in the embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0168] It should also be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0169] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0170] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0171] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0172] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0173] In addition, each functional unit in each embodiment of the present application may be integrated into one monitoring unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0174] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0175] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A paging method, It is characterized in that The method comprises: The network device determines a paging time window for paging the terminal device, wherein the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1; The network device monitors whether the carrier on the unlicensed frequency band is idle based on the paging time window; The network device determines a paging time window for paging the terminal device, including: The network device selects S POs from a plurality of wireless frames as paging time windows for the terminal device, wherein the plurality of wireless frames include a reference paging frame PF, a first K of the reference PF, 1 radio frames and / or the reference PF's rear K 2 radio frames, where K 1 and K 2 is a positive integer, Among them, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive paging messages in a paging cycle.

2. The method according to claim 1, It is characterized in that The method further comprises: The network device pages the terminal device at a PO in the paging time window according to the monitoring result.

3. The method according to claim 1 or 2, It is characterized in that The network device determines a paging time window for paging the terminal device, including: The network device determines a reference PO in a reference PF used for paging the terminal device; The network device sends the reference PO and the preceding M of the reference PO 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

4. The method according to claim 3, It is characterized in that The index of the reference PO Wherein, UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, Ns is the number of POs included in a PF, To round down.

5. The method according to claim 1, It is characterized in that The method further comprises: The network device sends second indication information to the terminal device, where the second indication information is used to indicate the locations of the S POs.

6. The method according to claim 5, It is characterized in that The network device sending second indication information to the terminal device includes: The network device sends the second indication information via a carrier in an authorized frequency band.

7. The method according to claim 5, It is characterized in that The network device sending second indication information to the terminal device includes: The network device sends the second indication information via a carrier in an unlicensed frequency band.

8. The method according to any one of claims 5 to 7, It is characterized in that The second indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

9. The method according to claim 2, It is characterized in that The network device paging the terminal device on a PO in the paging time window according to the monitoring result includes: According to the monitoring result, the network device sends a first channel carrying a paging message to the terminal device on the one PO in the paging time window, where the first channel includes a control channel and / or a data channel.

10. The method according to claim 9, It is characterized in that The network device sends, according to the monitoring result, a first channel carrying a paging message to the terminal device on the one PO in the paging time window, including: The network device determines, according to a position of the one PO in the paging time window, a paging radio network temporary identifier P-RNTI for sending the first channel; The network device uses the P-RNTI to send the first channel to the terminal device on the one PO in the paging time window.

11. The method according to claim 10, It is characterized in that There is a one-to-one correspondence between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO.

12. The method according to claim 11, It is characterized in that The method further comprises: The network device sends first indication information to the terminal device, where the first indication information is used to indicate a mapping relationship between the S candidate POs and the S P-RNTIs.

13. The method according to claim 12, It is characterized in that The network device sends first indication information to the terminal device, including: The network device sends the first indication information via a carrier on an authorized frequency band.

14. The method according to claim 12, It is characterized in that The network device sends first indication information to the terminal device, including: The network device sends the first indication information via a carrier in an unlicensed frequency band.

15. The method according to claim 12, It is characterized in that The first indication information is carried in a broadcast message or a wireless resource control RRC signaling.

16. The method according to claim 1 or 2, It is characterized in that The method further comprises: The network device indicates the value of S to the terminal device.

17. A paging method, It is characterized in that The method comprises: The terminal device determines a paging time window used by the network device to page the terminal device, wherein the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1; The terminal device listens to the paging message sent by the network device in the paging time window; The terminal device determines a paging time window used by the network device to page the terminal device, including: The terminal device selects S POs from a plurality of radio frames as paging time windows of the terminal device, wherein the plurality of radio frames include a reference paging frame PF, a first K of the reference PF, 1 radio frames and / or the reference PF's rear K 2 radio frames, where K 1 and K 2 is a positive integer, Among them, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive paging messages in a paging cycle.

18. The method according to claim 17, It is characterized in that The terminal device determines a paging time window used by the network device to page the terminal device, including: The terminal device determines a reference PO in a reference paging frame PF used by the network device to page the terminal device; The terminal device sends the reference PO and the preceding M of the reference PO to the 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

19. The method according to claim 18, It is characterized in that The index of the reference PO Wherein, UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, Ns is the number of POs included in a PF, To round down.

20. The method according to claim 17, It is characterized in that The terminal device selects S POs as paging time windows of the terminal device in multiple radio frames, including: The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the positions of the S POs; or The terminal device obtains the location information of the S POs pre-stored in the terminal device.

21. The method according to claim 20, It is characterized in that The terminal device receives the second indication information sent by the network device, including: The terminal device receives the second indication information sent by the network device through a carrier on the authorized frequency band.

22. The method according to claim 20, It is characterized in that The terminal device receives the second indication information sent by the network device, including: The terminal device receives the second indication information sent by the network device via a carrier in an unlicensed frequency band.

23. The method according to any one of claims 20 to 22, It is characterized in that The second indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

24. The method according to any one of claims 17 to 22, It is characterized in that Before the terminal device listens to the paging message sent by the network device in the paging time window, the method further includes: The terminal device receives first indication information sent by the network device, where the first indication information is used to indicate a mapping relationship between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send a first channel on each PO; The terminal device listens to the paging message sent by the network device in the paging time window, including: The terminal device listens to the paging message sent by the network device in the paging time window according to the first indication information.

25. The method according to claim 24, It is characterized in that The terminal device receives the first indication information sent by the network device, including: The terminal device receives the first indication information sent by the network device through a carrier on an authorized frequency band.

26. The method according to claim 24, It is characterized in that The terminal device receives the first indication information sent by the network device, including: The terminal device receives the first indication information sent by the network device via a carrier in an unlicensed frequency band.

27. The method according to claim 24, It is characterized in that The first indication information is carried in a broadcast message or a wireless resource control RRC signaling.

28. The method according to claim 17 or 18, It is characterized in that The method further comprises: The terminal device receives an indication of the value of S sent by the network device.

29. A network device, It is characterized in that The network equipment includes: A determining unit, configured to determine a paging time window for paging the terminal device, wherein the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1; A monitoring unit, configured to monitor whether a carrier on an unlicensed frequency band is idle based on the paging time window; The determining unit is specifically used for: In a plurality of radio frames, S POs are selected as paging time windows of the terminal device, wherein the plurality of radio frames include a reference paging frame PF, the first K paging frames of the reference PF, and the paging time windows of the terminal device. 1 radio frames and / or the reference PF's rear K 2 radio frames, where K 1 and K 2 is a positive integer, Among them, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive paging messages in a paging cycle.

30. The network device according to claim 29, It is characterized in that The network device further includes a sending unit, The sending unit is used to page the terminal device at a PO in the paging time window according to the monitoring result.

31. The network device according to claim 29 or 30, It is characterized in that The determining unit is specifically used for: In a reference paging frame PF used for paging the terminal device, determining a reference PO; The reference PO, and the front M of the reference PO 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

32. The network device according to claim 31, It is characterized in that The index of the reference PO Wherein, UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, Ns is the number of POs included in a PF, To round down.

33. The network device according to claim 29, It is characterized in that The sending unit is also used for: Send second indication information to the terminal device, where the second indication information is used to indicate the locations of the S POs.

34. The network device according to claim 33, It is characterized in that The sending unit is specifically used for: The second indication information is sent through a carrier in an authorized frequency band.

35. The network device according to claim 33, It is characterized in that The sending unit is specifically used for: The second indication information is sent via a carrier in an unlicensed frequency band.

36. The network device according to any one of claims 33 to 35, It is characterized in that The second indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

37. The network device according to claim 30, It is characterized in that The sending unit is specifically used for: According to the monitoring result, a first channel carrying a paging message is sent to the terminal device on the one PO in the paging time window, where the first channel includes a control channel and / or a data channel.

38. The network device according to claim 37, It is characterized in that The determining unit is further configured to: Determine, according to a position of the one PO in the paging time window, a paging radio network temporary identifier P-RNTI for sending the first channel; The sending unit is specifically used for: Using the P-RNTI, the first channel is sent to the terminal device on the one PO in the paging time window.

39. The network device according to claim 38, It is characterized in that There is a one-to-one correspondence between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send the first channel on each PO.

40. The network device according to claim 39, It is characterized in that The sending unit is specifically used for: Sending first indication information to the terminal device, wherein the first indication information is used to indicate a mapping relationship between the S candidate POs and the S P-RNTIs.

41. The network device according to claim 40, It is characterized in that The sending unit is specifically used for: The first indication information is sent through a carrier on the authorized frequency band.

42. The network device according to claim 40, It is characterized in that The sending unit is specifically used for: The first indication information is sent through a carrier in an unlicensed frequency band.

43. The network device according to claim 40, It is characterized in that The first indication information is carried in a broadcast message or a wireless resource control RRC signaling.

44. According to claim 29 or 30, It is characterized in that The network device further comprises means for indicating the value of S to the terminal device.

45. A paging terminal device, It is characterized in that The terminal device comprises: A determining unit, configured to determine a paging time window used by the network device to perform paging on the terminal device, wherein the paging time window includes S candidate paging times PO, where S is a positive integer greater than 1; A monitoring unit, configured to monitor a paging message sent by a network device in the paging time window; The determining unit is specifically used for: In a plurality of radio frames, S POs are selected as paging time windows of the terminal device, wherein the plurality of radio frames include a reference paging frame PF, the first K paging frames of the reference PF, and the paging time windows of the terminal device. 1 radio frames and / or the reference PF's rear K 2 radio frames, where K 1 and K 2 is a positive integer, Among them, the system frame number SFN of the reference PF satisfies: SFN mod T = (T / N) × (UE-ID mod N), where T is the time length of a paging cycle, UE-ID is the device identifier of the terminal device, and N is the number of PFs that can be used to receive paging messages in a paging cycle.

46. ​​The terminal device according to claim 45, It is characterized in that The determining unit is specifically used for: Determine a reference PO in a reference paging frame PF used by the network device to perform paging on the terminal device; The reference PO and the front M of the reference PO 1 The PO and / or the reference PO 2 PO, determined as the paging time window, where M 1 and M 2 Is a positive integer.

47. The terminal device according to claim 46, It is characterized in that The index of the reference PO Wherein, UE-ID is the device identifier of the terminal device, N is the number of PFs that can be used for paging in a paging cycle, Ns is the number of POs included in a PF, To round down.

48. The terminal device according to claim 45, It is characterized in that The determining unit is specifically used for: receiving, by the receiving unit, second indication information sent by the network device, where the second indication information is used to indicate the positions of the S POs; or Obtain location information of the S POs pre-stored in the terminal device.

49. The terminal device according to claim 48, It is characterized in that The receiving unit is specifically used for: The second indication information is sent by the network device through a carrier in an authorized frequency band.

50. The terminal device according to claim 48, It is characterized in that The receiving unit is specifically used for: The second indication information is received by the network device through a carrier in an unlicensed frequency band.

51. The terminal device according to any one of claims 48 to 49, It is characterized in that The second indication information is carried in a broadcast message or a radio resource control (RRC) signaling.

52. The terminal device according to any one of claims 45 to 50, It is characterized in that The terminal device further includes a receiving unit, configured to: Receiving first indication information sent by the network device, where the first indication information is used to indicate a mapping relationship between the S candidate POs and the S P-RNTIs, and the network device uses the P-RNTI corresponding to each PO to send a first channel on each PO; The monitoring unit is specifically used for: The paging message sent by the network device is listened to in the paging time window according to the first indication information.

53. The terminal device according to claim 52, It is characterized in that The receiving unit is specifically used for: The first indication information is received by the network device through a carrier on an authorized frequency band.

54. The terminal device according to claim 52, It is characterized in that The receiving unit is specifically used for: The first indication information is received by the network device through a carrier in an unlicensed frequency band.

55. The terminal device according to claim 52, It is characterized in that The first indication information is carried in a broadcast message or a wireless resource control RRC signaling.

56. The terminal device according to claim 45 or 46, It is characterized in that The terminal device further comprises a unit for receiving an indication of the value of S sent by the network device.

57. A network device, include: processor; A memory for storing programs executable by the processor; When the processor executes the program, the method according to any one of claims 1 to 16 is performed.

58. A terminal device, include: processor; A memory for storing programs executable by the processor; When the processor executes the program, the method according to any one of claims 17 to 28 is performed.

59. A computer-readable storage medium having computer-executable instructions stored thereon, which, when executed by a processor, implement the method steps described in any one of claims 1 to 16, or the method steps described in any one of claims 17 to 28.

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