WO2017157348A1

WO2017157348A1 - Paging listening method, paging sending method, terminal paging method, device, and computer storage medium

Info

Publication number: WO2017157348A1
Application number: PCT/CN2017/077328
Authority: WO
Inventors: 刘旭; 余媛芳; 戴博; 艾建勋; 戴谦
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-03-14
Filing date: 2017-03-20
Publication date: 2017-09-21

Abstract

A paging listening method, a paging sending method, a terminal paging method, a base station, terminal, and a computer storage medium. The paging listening method comprises: a terminal generates first paging listening identification information; and the terminal determines, according to the first paging listening identification information, a paging superframe to be listened to by the terminal, and listens to the paging on the paging superframe.

Description

Method and device for monitoring, sending paging, paging terminal, computer storage medium

Technical field

The present invention relates to a wireless communication technology, and in particular, to a method for monitoring, transmitting a paging, paging a terminal, and a base station, a terminal, and a computer storage medium.

Background technique

The rapid development of mobile Internet, Internet of Things, and other business applications has become the main driving force for the development of the fifth generation of mobile communication technology (5G). They are eager to demand 5G's access rate comparable to fiber optics, connectivity to billions of devices, a perfect real-time experience, and wireless broadband access anywhere, anytime. In addition, important indicators such as energy efficiency, spectrum efficiency and peak rate also need to be considered in the design of 5G systems. China has established the IMT-2020 (5G) promotion group in 2013 to promote the development of 5G technology. According to the overall situation of the international community, it is expected that a 5G vision, key capability needs, and spectrum planning will be formed in 2015; 5G standardization will be launched afterwards, and it is planned to start commercialization after 2020. In terms of international standards, the technical standards of LTE-Advanced are mainly formulated by the 3GPP International Organization for Standardization. The industry initially believes that standard research work for 5G will be initiated in the 3GPP R14 phase (expected in 2016).

In future mobile network applications, the demand for traffic, the number of terminals, and the types of terminals will all show an increasing trend. As one of the important scenes and technical means of 5G, Machine Type Communication (MTC) is receiving more and more attention. In the subject of MTC, for the characteristics of low-cost low-throughput type terminals, the research sub-topic of NB-IoT (NarowBand-Internet of Things) is proposed: that is, the NB-IoT low-cost terminal is provided by using the 200kHZ frequency band. Low throughput wireless communication service. In addition, a significant requirement of the NB-IOT terminal (UE, User Equipment) is power saving, for which the concept of extended discontinuous reception (eDRX) is introduced. The NB-IOT terminal supports the eDRX period (TeDRX) for several hours. For example, the length of the eDRX can reach a maximum of 220 radio frames (210 super frames, one super frame equals 210 radio frames), and the power saving effect on the terminal is very high. Significant. In an LTE system, the UE will be in a DRX cycle (TDRX) After waking up to listen to the paging message, if the UE does not successfully receive the paging message, the mobility management entity (MME) will continue to initiate paging in the next DRX cycle. Long-term evolution (LTE) paging mechanism should not be adopted in NB-IOT. Due to the long period of eDRX, it may cause a long time to successfully receive a paging message, and if it is a paging message carrying system message update, Timely reception by the terminal will have serious consequences. To this end, the concept of Paging Transmission Window (PTW) is introduced in the NB-IOT. That is, the UE will enter the PTW after experiencing eDRX sleep for a long time. One PTW is composed of many radio frames, and the UE is in the PTW. Monitor paging messages. A number of paging occasions (PO, Paging Occasions) are set in the PTW and the base station (eNodeB) will use these POs to retransmit a certain paging message. This paging mechanism ensures the reliability of the UE receiving paging messages in the eDRX environment. Since the eDRX cycle is in superframe units, when the terminal monitors the paging message, it first needs to determine the paging superframe, and further determines the radio frame in the paging superframe and the subframe in the radio frame.

In the FDD-LTE system, the subframes that can be used for paging in one radio frame are subframes 0, 4, 5, and 9, and the radio frames are identified by SFN (System Frame Number), such as the nth. The radio frames are identified by "SFN#n". The allocation of the paging resources is allocated in units of the duration of one radio frame (10 milliseconds), and the eNodeB broadcasts the total number of subframes available for paging in a DRX cycle through the SIB (System Information Block) 2. The NB-IOT system bandwidth has only one PRB width, and the paging message needs to be transmitted in one or more subframes. In addition, due to the limited frequency domain resources of the NB-IOT system, the primary synchronization signal (PSS, Primary Synchronization Signal), and secondary synchronization The signal (SSS, Secondary Synchronization Signal) and the physical broadcast channel (PBCH, Physical Broadcast CHannel) will occupy more symbols than the LTE system, so there are few resources available for paging in subframes 0, 4, 5, and 9. Therefore, the allocation of paging resources may need to be allocated in units of multiple 10 milliseconds.

Since there are a large number of terminals in the Internet of Things, for example, there may be more than 50,000 or more terminals in a single cell, and it is necessary to consider a method of discretizing terminal paging, so as to prevent terminals from concentrating on monitoring paging at the same time. Perform paging response to avoid problems such as network congestion and improve system operation efficiency.

Summary of the invention

In order to solve the existing technical problems, the embodiments of the present invention provide a method for monitoring, sending, paging, and paging a narrowband Internet of Things terminal, and a base station, a terminal, and a computer storage medium.

The technical solution of the embodiment of the present invention is implemented as follows:

A method for monitoring paging, the method comprising:

The terminal generates first paging monitoring identification information;

Determining, by the terminal, the paging superframe that the terminal needs to monitor according to the first paging monitoring identification information, and monitoring the paging on the paging superframe.

Optionally, the first paging monitor identification information is generated by:

UEID _PH = [Floor (IMSI / first value)] mod 1024; or,

UEID _PH = [Floor (STMSI / first value)] mod 1024;

The first value is a predefined constant or a value associated with the extended paging period eDRX of the terminal;

The STMSI is a temporary mobile station identification code that is allocated by the network side and is valid within a certain range; the IMSI is an international mobile subscriber identity code, and the Floor is rounded down.

A method of transmitting a page, the method comprising:

The network side device acquires the first paging monitoring identification information;

The network side device determines, according to the first paging monitoring identification information, a paging superframe to be monitored by the to-be-paged terminal, and sends a paging to the to-be-paged terminal on the paging superframe.

UEID _PH = [Floor (IMSI / first value)] mod 1024; or,

UEID _PH = [Floor (STMSI / first value)] mod 1024;

A terminal comprising:

Generating unit configured to generate first paging monitoring identification information;

The paging monitoring unit is configured to determine, according to the first paging monitoring identification information, a paging superframe that the terminal needs to monitor, and monitor the paging on the paging superframe.

Optionally, the generating unit generates the first paging monitoring identification information according to the following formula:

UEID _PH = [Floor (IMSI / first value)] mod 1024; or,

UEID _PH = [Floor (STMSI / first value)] mod 1024;

A base station comprising:

An identification information acquiring unit configured to acquire first paging monitoring identification information;

And a sending unit, configured to determine, according to the first paging monitoring identification information, a paging superframe to be monitored by the to-be-paged terminal, and send a paging to the to-be-paged terminal on the paging superframe.

UEID _PH = [Floor (IMSI / first value)] mod 1024; or,

UEID _PH = [Floor (STMSI / first value)] mod 1024;

A method for paging a narrowband Internet of Things NB-IOT terminal, comprising:

The terminal obtains the paging parameter that is sent by the base station, where the paging frame interval included in the paging parameter sent by the base station is determined according to the number of subframes that the k radio frames can use for paging, where k Is a positive integer;

The terminal monitors the paging message in the paging frame PF according to the paging parameter.

Optionally, the terminal, according to the paging parameter, listening to the paging message in the paging frame includes:

Determining, by the paging parameter, the radio frame occupied by the PF in the paging transmission window PTW that can be used to send the paging message;

The terminal monitors a paging message at a location of a paging occasion PO within the determined radio frame;

The paging parameter includes at least a paging frame interval, a location of a starting PO in the PF, a discontinuous reception DRX cycle, and an initial length of the PTW.

Optionally, the determining, by using the paging parameter, the radio frame occupied by the paging frame PF in the PTW that can be used to send the paging message includes:

The terminal monitors the PO in the PTW by using the DRX mode, and calculates the system frame number SFN _PF of the radio frame occupied by the PF for sending the paging message in the PTW by using the following formula:

(SFN _PF -i)=PTW _start +k ₁ *T+k ₂ ;

Alternatively, SFN _PF = PTW _start + k ₁ * T + k ₂ ;

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

M is the number of radio frames in the paging frame interval broadcast by the base station, and the PF _interval is the PF interval.

PTW _start represents the system frame number of the starting radio frame of the PTW, and the PTW _length is the _length of the PTW;

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

The UE_ID is IMSI mod 1024, and the IMSI is the international mobile subscriber identity of the terminal.

Optionally, the PO shares at least one of the subframes with the secondary synchronization signal and the system information block SIB 1; and/or,

The subframe in which the PO is located is located on a different radio frame from the subframe in which at least one of the SSS and the SIB 1 is located;

The shared subframe satisfies at least one of the following conditions:

a subframe in which the PO is located and a subframe in which at least one of the SSS and the SIB1 is located is located in the same subframe of the same radio frame;

The subframe in which the PO is located is located on the same subframe as the at least one of the SSS and the SIB1 in different radio frames.

Optionally, the method further includes:

The terminal measures the coverage level, and determines the PTW length according to the mapping relationship between the coverage level and the PTW length, according to the extended discontinuity reception period TeDRX and the discontinuous reception period. TDRX calculates the time domain location information of the PF.

Optionally, the method further includes:

The terminal monitors the PO in the PF of the retransmission paging message by means of blind detection to receive the retransmitted paging message.

Optionally, the method further includes:

The terminal forwards at least one of the measured coverage level and the PTW length, and at least one of the TeDRX and the TDRX to the base station through the MME; or

The terminal reports at least one of the measured coverage level and the PTW length to the base station, and forwards at least one of the TeDRX and the TDRX to the base station through the MME.

The base station determines the paging frame interval according to the number of subframes that the k radio frames can use for paging, and sends the paging parameter corresponding to the determined paging frame interval to the terminal, where k is a positive integer;

The base station sends a paging message to the terminal in the paging frame PF according to the paging parameter.

Optionally, the sending, by the base station, the paging message to the terminal in the paging frame PF according to the paging parameter includes:

The base station determines, by using the paging parameter, a radio frame occupied by all PFs in the paging transmission window PTW that can be used to send a paging message, where the paging parameter includes at least a paging frame interval and a PF. The position of the initial paging opportunity PO, the discontinuous reception DRX cycle, and the initial length of the PTW;

The base station sends a paging message up and down at the location of the PO within the determined radio frame.

The system frame number SFN _PF of the radio frame occupied by all the PFs in the PTW that can be used to send the paging message is calculated by the following formula;

(SFN _PF -i)=PTW _start +k ₁ *T+k ₂ ; alternatively, SFN _PF =PTW _start +k ₁ *T+k ₂ ;

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

Optionally, the method further includes:

The base station calculates time domain location information of the PF according to the PTW length, the extended discontinuous reception period TeDRX, and the discontinuous reception period TDRX.

Optionally, the method further includes:

Receiving, by the base station, at least one of a coverage level and a PTW length reported by the terminal, and receiving, by the mobility management entity MME, at least one of TeDRX and TDRX measured by the terminal; or

The base station receives at least one of a coverage level and a PTW length measured by the terminal, and at least one of TeDRX and TDRX through the MME.

Optionally, the method further includes:

When the number of subframes that an SFN can use for paging changes, the base station re-determines the paging frame interval, and sends the paging parameter corresponding to the re-determined paging frame interval to the next system message broadcast. terminal.

Optionally, the PO shares a subframe with at least one of the secondary synchronization signal and the system information block SIB1; and/or,

The shared subframe satisfies at least one of the following conditions:

A terminal comprising:

An obtaining unit, configured to obtain a paging parameter sent by the base station, where the paging frame interval included in the paging parameter sent by the base station is determined according to the number of subframes that the k wireless frames can use for paging Where k is a positive integer;

The listening unit is configured to monitor the paging message in the paging frame PF according to the paging parameter.

Optionally, the monitoring unit, according to the paging parameter, listening to the paging message in the paging frame includes:

The monitoring unit determines, by using a paging parameter, a radio frame occupied by all paging frames PF in the paging transmission window PTW that can be used to send a paging message;

Monitoring a paging message at a location of a paging occasion PO within the determined radio frame;

Optionally, the listening unit determines, by using the paging parameter, that the radio frame occupied by the paging frame PF that can be used to send the paging message in the radio paging transmission window PTW includes:

The DR is used to monitor the PO in the PTW, and the system frame number SFN _PF of the radio frame occupied by the paging frame PF that can be used for sending the paging message in the PTW is calculated by the following formula;

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

The shared subframe satisfies at least one of the following conditions:

Optionally, the terminal further includes:

The calculating unit is configured to measure the coverage level, and determine the PTW length according to the mapping relationship between the coverage level and the PTW length, and calculate the time domain location information of the PF according to the extended discontinuous reception period TeDRX and the discontinuous reception period TDRX.

Optionally, the listening unit is further configured to listen to the PO in the PF of the retransmission paging message by means of blind detection to receive the retransmitted paging message.

Optionally, the terminal further includes:

The reporting unit is configured to forward at least one of the measured coverage level and the PTW length, and at least one of the TeDRX and the TDRX to the base station by using the mobility management entity MME; or

At least one of the measured coverage level and the PTW length is reported to the base station, and at least one of the TeDRX and the TDRX is forwarded to the base station by the mobility management entity MME.

A base station comprising:

a parameter sending unit, configured to determine a paging frame interval according to the number of subframes that the k radio frames can use for paging, and send the paging parameter corresponding to the determined paging frame interval to the terminal, where k is Positive integer

The paging unit is configured to send a paging message to the terminal in the paging frame PF according to the paging parameter.

Optionally, the paging unit sends a paging message to the terminal in the paging frame PF according to the paging parameter, where:

The paging unit determines, by using a paging parameter, a radio frame occupied by all PFs in the paging transmission window PTW that can be used to send a paging message, where the paging parameter includes at least a paging frame interval and a PF. The position of the initial paging opportunity PO, the discontinuous reception DRX cycle, and the initial length of the PTW;

A paging message is sent up and down at the location of the PO within the determined radio frame.

Optionally, the paging unit determines, by using a paging parameter, that all radio frames occupied by the PF that can be used to send the paging message in the PTW include:

The paging unit calculates, by using the following formula, a system frame number SFN _PF of a radio frame occupied by all PFs in the PTW that can be used to send a paging message;

(SFN _PF -i)=PTW _start +k ₁ *T+k ₂ ;

Alternatively, SFN _PF = PTW _start + k ₁ * T + k ₂ ;

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

Optionally, the paging unit is further configured to calculate time domain location information of the PF according to the PTW length, the extended discontinuity reception period TeDRX, and the discontinuous reception period TDRX.

Optionally, the base station further includes:

The receiving unit is configured to directly receive at least one of a coverage level and a PTW length reported by the terminal, and receive, by the mobility management entity MME, at least one of TeDRX and TDRX measured by the terminal; or receive an coverage level measured by the terminal by using the MME. And at least one of a length of PTW and at least one of TeDRX and TDRX.

Optionally, the parameter sending unit is further configured to: when the number of subframes that the radio frame can be used for paging changes, re-determine the paging frame interval, and re-determine the paging when the next system message is broadcast. The parameters are sent to the terminal.

The subframe in which the PO is located is different from the subframe in which at least one of the SSS and the SIB 1 is located On the wireless frame; among them,

The shared subframe satisfies at least one of the following conditions:

A computer storage medium comprising a set of instructions, when executed, causing at least one processor to perform a method of listening to a paging on the terminal side, or performing a paging as described above at the base station side The method, or the method of paging the NB-IOT terminal on the terminal side, or the method of paging the NB-IOT terminal on the base station side according to the claim.

The technical solution of the present application can ensure the resources used by the NB-IOT system for paging by extending the granularity of the paging resource allocation. In addition, the retransmission paging message can be transmitted by using the remaining subframes, which can not only fully utilize the radio resources to transmit the paging message, but also reduce the congestion of the paging message transmission. Through the design of the NB of the NB-IOT system, the retransmission of the paging message is realized, and the reliability of the paging of the NB-IOT system is ensured.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

1 is a schematic diagram of transmission of paging in an LTE system;

2 is a schematic diagram of a method of a base station side according to Embodiment 1 of the present invention;

3 is a schematic diagram of a method of a terminal side according to Embodiment 1 of the present invention;

4 is a schematic diagram of a design of a paging frame in an NB-IOT system according to an example of an embodiment of the present invention;

FIG. 5(a) is a schematic diagram showing a configuration flow of paging related parameters in an NB-IOT system according to an example of an embodiment of the present invention;

FIG. 5(b) is a paging related parameter in an NB-IOT system according to an example of an embodiment of the present invention. Another schematic diagram of the configuration process;

FIG. 6 is a schematic flowchart of a method for monitoring paging according to Embodiment 4 of the present invention;

FIG. 7 is a schematic diagram of a terminal according to Embodiment 4 of the present invention; FIG.

FIG. 8 is a schematic flowchart of a method for sending a paging according to Embodiment 5 of the present invention;

FIG. 9 is a schematic diagram of a base station according to Embodiment 5 of the present invention.

detailed description

In order to make the objects, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments of the present application may be combined with each other arbitrarily.

Example 1

In the LTE system, if the data is to be sent to the UE in the idle state (RRC state is RRC-IDLE), the MME needs to send a paging message to all the eNodeBs in the tracking area (TA, Tracking Area) registered by the UE, and then the eNodeB. Send a paging message to notify the UE, as shown in Figure 1. The UE listens to the paging message at the corresponding location according to the calculation formula of the PO. When the UE receives the paging message, it will initiate an RRC connection request to receive the downlink data. The MME determines whether the current paging is successfully received by the UE according to whether the UE performs the corresponding action after sending the paging message once. If the UE is not successfully received by the UE, the MME will continue to search for the next paging frame interval. Call the UE.

In the NB-IOT system, since the PSS occupies at least one subframe, it is likely to occupy two subframes; the SSS occupies at least one subframe, and the PBCH occupies one subframe; the PSS and SSS, PBCH periods may be 20 ms or 10 ms, so Up to 4 subframes are available for 0, 4, 5, and 9 subframes within 20ms, and at least 2 subframes are available. Then, up to 16 subframes are available for 80ms, and at least 8 subframes are available, and these available subframes are required. Used for SIB1bis and paging transmission, in addition SIB1bis and paging may need to be transmitted on multiple subframes to ensure its performance. Therefore, the allocation resource of the paging is allocated in units of 10 milliseconds compared to the LTE system, and the allocation unit of the paging resource may be considered in the NB-IOT system, for example, the transmission resource of the paging is allocated in units of 80 milliseconds or 160 milliseconds or other duration. That is, 80 milliseconds or 160 milliseconds or other duration The length of a paging frame (PF, paging frame). In addition, other remaining subframes (non-zero, 4, 5, and 9 subframes) can also be used to transmit paging messages. At this time, since the number of subframes used for paging in the radio frame increases, configuration is performed. When extending the allocation unit of the paging resource, you can configure 20 milliseconds or 40 milliseconds.

Therefore, based on the above idea, the embodiment provides a method for paging an NB-IOT terminal, which is mainly described from the base station side. As shown in FIG. 2, the method mainly includes the following operations:

The base station determines the paging frame interval according to the number of subframes that the k radio frames can use for paging, and sends the paging parameter corresponding to the determined paging frame interval to the terminal, where k is a positive integer, in an implementation. In the example, k can be 1, 2, 4, 8, 16;

The base station sends a paging message to the terminal in the paging frame according to the paging parameter.

For one UE, multiple DRXs will be experienced in one PTW, and the UEs are evenly distributed in one DRX by different offsets for each UE in each DRX, and the PF is periodically presented in the PTW. , can calculate the position information of each PF. That is, the base station can determine, by using the paging parameter, the radio frame (identified by the SFN) occupied by all the PFs used to send the paging message in the PTW. Optionally, the sending, by the base station, the paging message to the terminal in the paging frame according to the paging parameter includes:

Determining, by the paging parameter, the radio frame occupied by all paging frames PF in the PTW that can be used for sending the paging message; that is, determining which radio frames are included in all PFs that may be used for sending the paging message;

The base station sends a paging message up and down at the location of the PO in the determined radio frame;

The paging parameter delivered by the base station includes at least a paging frame interval, a location of a starting PO in the PF, a DRX cycle, an initial length of the PTW, and the like.

Optionally, the base station may calculate, by using the following formula, a system frame number SFN _PF of all radio frames occupied by the PF for transmitting the paging message in the PTW;

(SFN _PF -i)=PTW _start +k ₁ *T+k ₂ ;

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

The SFN _PF can also be calculated using the following formula:

SFN _PF =PTW _start +k ₁ *T+k ₂ .

In addition, the base station can calculate the time domain location information of the PF according to the PTW length, the extended discontinuous reception period (TeDRX), and the discontinuous reception period (TDRX).

Optionally, the base station may directly receive the reported coverage level and/or PTW length from the terminal side, and receive the TeDRX and/or TDRX measured by the terminal through the MME. The base station may also receive at least one of a coverage level and a PTW length measured by the terminal, and at least one of TeDRX and TDRX through the MME. It should be noted that when the eNodeB senses that the factor change (ie, the number of subframes in which a radio frame can be used for paging changes), and the paging resource allocation interval needs to be changed, the paging frame interval is reconfigured, and will be next time. When the system message is broadcast, the new configuration is notified to the UE, and the UE uses the new configuration to perform PF calculation and PO monitoring.

Optionally, the PO shares a subframe with at least one of a secondary synchronization signal and a system information block (SIB 1); and/or,

The common subframe satisfies at least one of the following conditions:

The process of paging the NB-IOT terminal is described from the terminal side. The process is as shown in FIG. 3, and includes the following operations:

The UE obtains the paging parameter sent by the base station, where the paging frame interval is determined according to the number of subframes that the k radio frames can be used for paging, where k is a positive integer. In an embodiment, k can 1, 2, 4, 8, 16;

The UE monitors the paging message in the paging frame according to the paging parameter.

For one UE, multiple DRXs will be experienced in one PTW, and the UEs are evenly distributed in one DRX by different offsets for each UE in each DRX, and the PF is periodically presented in the PTW. , can calculate the position information of each PF. That is, the UE may determine, by using the paging parameter, the radio frame (identified by the SFN) occupied by all the paging frames PF used for transmitting the paging message in the radio paging transmission window PTW; and then the paging occasion in the determined radio frame. The paging message can be monitored at the location of the PO.

Optionally, the monitoring, by the terminal, the paging message in the paging frame includes:

Determining, by the paging parameter, a radio frame occupied by all PFs in the PTW that can be used to send a paging message;

The terminal monitors a paging message at a location of a paging occasion (PO) within the determined radio frame;

The paging parameters sent by the base station obtained by the UE include at least a paging frame interval, a location of the initial paging occasion PO in the PF, a DRX cycle, and an initial length of the PTW.

In practical applications, in order to save the power consumption of the UE, the UE uses the DRX mode to monitor the PO in the PTW. The DRX cycle is much smaller than the eDRX cycle, and supports the hundred milliseconds to the second level; the optional UE adopts the default. The DRX cycle, the optional UE adopts a UE-specific (DR-cycle). If the UE's last DRX cycle within the PTW is limited by the terminating SFN of the PTW, the UE will terminate the DRX cycle early.

Taking the design of the paging frame in the NB-IOT system shown in FIG. 4 as an example, the system frame number SFN _PF of the radio frame occupied by the PF that can be used for transmitting the paging message can be calculated according to the following formula:

(SFN _PF -i)=PTW _start +k ₁ *T+k ₂

Where i=[o, M-1],

k ₂ = (TdivN) * (UE_IDmodN).

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

T is the DRX cycle of the terminal, expressed in the number of radio frames;

N is the number of PFs in a T;

The SFN _PF can also be calculated using the following formula:

SFN _PF =PTW _start +k ₁ *T+k ₂ .

The transmission of the initial paging of the UE may be performed by means of a fixed paging subframe (eg, selecting one or several of the subframes 0, 4, 5, and 9 for transmitting the initial paging message); The subframes within the PF of the message may not be limited to subframes 0, 4, 5, 9; it is also possible to use other remaining subframes to transmit the retransmitted paging message. Optionally, the eNodeB determines a retransmission subframe resource for paging according to the condition of the remaining subframes. The UE can monitor the PO in the retransmission PF by means of blind detection, and implement the paging message for receiving the retransmission.

The UE may obtain the location of the initial PO in the paging frame PF from the paging parameters sent by the base station.

In addition, the UE may also monitor the PO in the PF of the retransmission paging message by means of blind detection to receive the retransmitted paging message.

Optionally, the PO shares a subframe with at least one of the secondary synchronization signal and the SIB 1; and/or,

The shared subframe satisfies at least one of the following conditions:

The following uses an example to illustrate.

For example, in NB-IOT, it is assumed that the PBCH and PSS periods are 10 ms, respectively located in subframe 0 and subframe 5, and the SSS is located in subframe 9, the specific period may be 10 ms or 20 ms or 40 ms or 80 ms, and SIB1 is 20 ms under the maximum number of repetitions. Send once (eg: SIB1 is repeated 4 times, 80ms Send once, repeat 8 times, send once in 40ms, repeat 16 times, send once in 20ms), located in subframe 4:

A case where the PO and the SSS and the SIB1 do not share the subframe resource, so that if the SSS period is 1 oms, the subframe that can be used to transmit the paging message has only the subframe 4, in order to avoid the subframe for transmitting the paging message and the SIB1. For conflict, consider that subframe 4 for paging and subframe 4 for SIB1 are respectively located in different radio frames (for example, the specified parity radio frame is used for one of them); if the period of SSS is 20 ms, it can be used to transmit paging message. The sub-frame has a subframe 4 and a sub-frame 9. Similarly, in order to prevent the subframe for transmitting the paging message from colliding with the SIB1 and the SSS, the paging subframe and the SIB1 subframe and the SSS subframe are respectively located on different radio frames.

One case: SSS and PO share subframe 9, or SIB1 and PO share subframe 4, then subframe 4 and/or subframe 9 can be used for PO. The shared subframe refers to the same subframe that shares the same radio frame, and/or shares the same subframe on different radio frames in the same PF.

In one case, the PO can share the subframe 4 and the subframe 9 at the same time, that is, the subframe 4 and the subframe 9 are shared with the SSS and the SIB1, and both the subframe 4 and the subframe 9 can be used for the PO. Optionally, the PO shares the same subframe resource on the same radio frame as the SSS and the SIB1. Optionally, the PO shares the same subframe resource on different radio frames in the PF with the SSS and the SIB1.

If SIB1 and SSS separately occupy subframe 4 and subframe 9, and the period of SSS is 1 oms, only subframe 4 can be used for PO. There are two ways to calculate PO in this case:

One way: to follow the form of the original LTE protocol, to ensure that there are at most 4 POs in a PF (possibly 1 or 2 or 4), and the length of the PF can be selected as 80 ms. At this time, the mapping relationship between the index i_s and the PO position, that is, the subframe pattern is shown in Table 1, where the index i_s is used to indicate the position of the PO in the subframe pattern:

Table 1, mapping between indexes and PO locations

Another way: not in the form of the LTE protocol, the subframe pattern does not need to be fixed Righteously, the PF length is determined directly based on "how many lengths of radio frames have a PO". For example, if a sub-frame 4 is available for PO within 20 ms, then the length of the PF can be directly selected to be 20 ms.

For the number of subframes that can be used for paging, mode 1 is to use only the subframe in which SIB1 is located. In this case, in order to realize that the available subframes are constant and do not change with the number of repetitions of SIB1, then, according to the two radio frames, 1 subframe can be used for paging subframe determination PO; mode 2 is to use only the subframe where SIB1 is located, and the number of subframes used for paging varies according to the number of repetitions of SIB1, for example, according to 8 radio frames. Or 12 or 16 can be used for paging subframe determination PO; mode 3 is to use only the subframe in which the SSS is located (SSS period is greater than 10 ms), since the period of the SSS is constant, at this time, the value of the k is The SSS period is the same, for example, the SSS period is 20ms, k is 2, the available subframe is 1, the SSS period is 40ms, k is 4, the available subframe is 3, the SSS period is 80ms, k is 8, and the available subframe is 7. The mode 4 is that the mode 1 is combined with the mode 3, and the value of k is the largest value of the two (determined according to the SSS period), and the available subframes are added for the two; the mode 5 is the combination of the mode 2 and the mode 3. The value of k is the largest value of the two (fixed to 16 or 8), and the available subframes are added together.

Optionally, the method further includes: determining, by the UE side, the PTW length directly according to the mapping relationship between the coverage level and the PTW length, and calculating the time domain location information of the PF according to the TeDRX and the TDRX.

5(a) and (b) are taken as an example to illustrate the configuration process of paging related parameters in the NB-IOT system involved in the above method.

In the NB-IOT system, the period of the TeDRX is as long as several tens of minutes to several hours. To avoid the burden of storing the paging message by the eNodeB, the MME needs to know the starting location information of the PTW window of the UE. Similarly, the UE and the eNodeB need to obtain the start location information of the PTW and the time domain location information of the PF through calculation. Alternatively, it can be obtained by:

As shown in Figure 5(a), the UE passes the measured coverage level and/or PTW length, and TeDRX and/or TDRX (if the UE's eDRX period and DRX period are not all default values) through non-access. The layer (NAS, Non Access Stratum) signaling informs the Mobility Management Entity (MME) that the MME can obtain the length of the PTW or obtain the length of the PTW directly from the NAS message of the UE according to the mapping relationship between the coverage level and the PTW length. Information, and the starting position information of the PTW can be calculated according to the UE's TeDRX and TDRX. The MME will override the level and / or PTW length and inform the TeDRX and / or TDRX information The eNodeB and the eNodeB can obtain the PF time domain location information of the UE by calculation.

In another mode, as shown in FIG. 5(b), the UE reports the coverage level and/or the PTW length measured by the UE to the eNodeB, and the eNodeB determines the PTW length of the UE or directly reports from the UE according to the mapping relationship between the coverage level and the PTW length. The length information of the PTW is obtained in the message. If the eDRX period and the DRX period of the UE are not all the default values, the UE notifies the MME of the TeDRX and/or TDRX information through the NAS message, and the eNodeB needs to obtain the TeDRX and/or TDRX information of the UE through the MME; PF time domain location information. The eNodeB informs the MME of the coverage level and/or the PTW length, and the MME can calculate the SFN information of the starting radio frame of the PTW.

Example 2:

The present embodiment provides a base station, which can implement the method on the base station side of the first embodiment, which mainly includes the following units.

a parameter sending unit, configured to determine a paging frame interval according to the number of subframes that the k radio frames can use for paging, and send the paging parameter corresponding to the determined paging frame interval to the terminal; wherein a positive integer, preferably 1, 2, 4, 8, 16;

The paging unit is configured to send a paging message to the terminal in the paging frame according to the paging parameter.

Optionally, the paging unit sends a paging message to the terminal in the paging frame according to the paging parameter, where:

The paging unit determines, by using the paging parameter, a radio frame (identified by the SFN) occupied by the paging frame PF that can be used for sending the paging message, where the paging parameter includes at least the paging frame interval and the PF. The location of the initial paging opportunity PO, the DRX cycle, and the initial length of the PTW;

Optionally, the paging unit may calculate, by using the following formula, a system frame number SFN _PF of a radio frame occupied by all paging frames PF used to send a paging message in the PTW;

(SFN _PF -i)=PTW _start +k ₁ *T+k ₂ ;

Alternatively, SFN _PF = PTW _start + k ₁ * T + k ₂ ;

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

Optionally, the paging unit is further configured to determine time domain location information of the UE side PF, where the PTW length, the discontinuous reception period TeDRX, and the discontinuous reception period TDRX need to be acquired.

Optionally, the base station may further include: a receiving unit configured to directly receive the coverage level and/or the PTW length reported by the terminal, receive the TeDRX and/or TDRX measured by the terminal by the mobility management entity MME, or receive the terminal measurement by using the MME. Coverage level and/or PTW length, TeDRX and/or TDRX to calculate time domain location information of the UE side PF.

Optionally, the parameter sending unit is further configured to: when the number of subframes that the radio frame can be used for paging changes, the paging frame interval is re-determined, and the re-determined paging is performed when the next system message is broadcast. The parameters are sent to the terminal.

The shared subframe satisfies at least one of the following conditions:

The base station in this embodiment can implement the method for paging the NB-IOT terminal in the foregoing embodiment. Therefore, other detailed descriptions of the base station in this embodiment can be referred to the corresponding content in the embodiment 1, and details are not described herein again.

In actual application, the parameter sending unit and the paging unit may be a central processing unit (CPU), a microprocessor (MCU, a Micro Control Unit), a digital signal processor (DSP, Digital Signal Processor) in a base station. Or a programmable logic array (FPGA) is implemented in conjunction with the transceiver; the receiving unit can be implemented by a transceiver in the base station.

Example 3

The embodiment provides a terminal, which can implement the method of Embodiment 1 above, and includes the following units.

An obtaining unit, configured to obtain a paging parameter sent by the base station, where the paging frame interval included in the paging parameter sent by the base station is determined according to the number of subframes that the k wireless frames can use for paging Where k is a positive integer, preferably 1, 2, 4, 8, 16;

Optionally, the obtained paging parameter includes at least a paging frame interval, a location of a starting paging occasion PO in the PF, a DRX cycle, and an initial length of the PTW.

The listening unit is configured to monitor the paging message in the paging frame according to the paging parameter.

The intercepting unit determines, by using a paging parameter, a radio frame (identified by the SFN) occupied by all PFs used to send the paging message in the PTW; and intercepts the paging message at the location of the paging occasion PO in the determined radio frame. .

Optionally, in order to save the power consumption of the UE, the monitoring unit may monitor the paging occasion by using the discontinuous reception DRX in the PTW, and calculate, by using the following formula, all paging frames PF in the PTW that can be used to send the paging message. The system frame number of the radio frame occupied by SFN _PF ;

(SFN _PF -i)=PTW _start +k ₁ *T+k ₂ ;

Alternatively, SFN _PF = PTW _start + k ₁ * T + k ₂ ;

Where i=[1,M-1],

k ₂ =(TdivN)*(UE_IDmodN);

PTW _start represents the SFN of the starting radio frame of the PTW, and the PTW _length is the _length of the PTW;

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

Optionally, the listening unit is further configured to monitor, by means of the blind detection, the PO in the PF of the retransmission paging message to receive the retransmitted paging message for the retransmitted paging message.

Optionally, the terminal further calculates the time domain location information of the PF when the paging message is monitored, and the terminal further includes a calculating unit, configured to determine the PTW length according to the mapping relationship between the coverage level and the PTW length, according to the TeDRX and TDRX calculates the time domain location information of the PF.

For the base station side, the time domain location information of the PF on the UE side needs to be calculated. In this case, the terminal needs to report some parameters to the base station side before calculating. Optionally, the terminal further includes a reporting unit configured to forward the measured coverage level and/or PTW length, and the TeDRX and/or TDRX to the base station by using the mobility management entity MME; or the measured coverage level and/or Or the PTW length is reported to the base station, and the TeDRX and/or the TDRX are forwarded to the base station by the mobility management entity MME.

Optionally, the PO shares a subframe with at least one of the secondary synchronization signal and/or the SIB 1; and/or,

The shared subframe satisfies at least one of the following conditions:

For the terminal in the embodiment to implement the process of paging the NB-IOT terminal, the other details of the terminal side in this embodiment can be referred to the corresponding content in the embodiment 1, and details are not described herein again. .

In actual application, the obtaining unit and the listening unit may be implemented by a transceiver in the terminal, where The computing unit can be implemented by a CPU, MCU, DSP or FPGA in the terminal.

Example 4

This embodiment provides a method for monitoring paging. As shown in FIG. 6, the method includes:

The terminal generates first paging monitoring identification information;

The terminal determines, according to the first paging monitoring identification information, a paging super frame (PH, Paging Hyper Frame) that the terminal needs to monitor, and monitors the paging on the paging superframe.

UEID _PH = [Floor (IMSI / first value)] mod 1024; or,

UEID _PH = [Floor (STMSI / first value)] mod 1024;

Wherein the first value is a predefined constant (eg, 512 or 1024) or a value associated with the extended paging period eDRX of the terminal (eg, TeDRX or a predefined constant *TeDRX, eg, 1024) *TeDRX);

The method for determining, by the terminal, the paging superframe to be monitored according to the first paging monitoring identifier is as follows: H-SFN mod TeDRX, H=(UEIDPH mod TeDRX, H); wherein, the H-SFN is The paging superframe number, TeDRX, H is an extended discontinuous reception period.

The embodiment further provides a terminal, as shown in FIG. 7, comprising:

The generating unit 71 is configured to generate first paging monitoring identification information;

The paging monitoring unit 72 is configured to determine, according to the first paging monitoring identification information, a paging superframe that the terminal needs to monitor, and monitor the paging on the paging superframe.

Optionally, the generating unit 71 generates the first paging monitoring identification information according to the following formula:

UEID _PH = [Floor (IMSI / first value)] mod 1024; or,

UEID _PH = [Floor (STMSI / first value)] mod 1024;

Wherein the first value is a predefined constant (eg, 512 or 1024) or a value associated with the extended paging cycle eDRX of the terminal (eg, TeDRX or a predefined constant *TeDRX, eg, 1024*TeDRX);

The method for determining, by the terminal, the paging superframe to be monitored according to the first paging monitoring identifier is as follows: H-SFN mod TeDRX, H=(UEIDPH mod TeDRX, H). The H-SFN is a paging superframe number, and the TeDRX and H are extended discontinuous reception periods.

In actual application, the generating unit 71 can be implemented by a CPU, an MCU, a DSP or an FPGA in the terminal; the paging listening unit 72 can be implemented by a transceiver in the terminal.

Example 5

This embodiment provides a method for sending a page. As shown in FIG. 8, the method includes:

The network side device may be, but is not limited to, a base station.

This embodiment further provides a base station, as shown in FIG. 9, including:

The identification information acquiring unit 91 is configured to acquire the first paging monitoring identification information;

The sending unit 92 is configured to determine, according to the first paging monitoring identification information, a paging superframe to be monitored by the to-be-paged terminal, and send a paging to the to-be-paged terminal on the paging superframe.

Optionally, in this embodiment, the first paging monitoring identification information is generated by:

UEID _PH = [Floor (IMSI / first value)] mod 1024; or,

UEID _PH = [Floor (STMSI / first value)] mod 1024;

Wherein the first value is a predefined constant (eg, 512 or 1024) or a value associated with the extended paging period eDRX of the terminal (eg, TeDRX or a predefined constant *TeDRX, eg, 1024*TeDRX );

The STMSI is a temporary mobile station identification code that is allocated by the network side and is valid within a certain range; the IMSI is an international mobile subscriber identity code, and the Floor is rounded down. Wherein the network side The method for determining, by the first page monitoring identifier, the paging superframe to be monitored by the device to be paged is as follows: H-SFN mod TeDRX, H=(UEIDPH mod TeDRX, H). The H-SFN is a paging superframe number, and the TeDRX and H are extended discontinuous reception periods.

In practical applications, the identification information acquiring unit 91 may be implemented by a CPU, an MCU, a DSP, or an FPGA in a base station; the transmitting unit 92 may be implemented by a transceiver in a base station.

One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware or in the form of a software function module. This application is not limited to any specific combination of hardware and software.

That is, those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Based on this, an embodiment of the present invention further provides a computer storage medium, where the computer storage medium includes a set of instructions, when the instruction is executed, causing at least one processor to perform paging on the base station side of the NB-IOT terminal. The method, or the method of paging the NB-IOT terminal on the terminal side, or the method of monitoring the paging on the terminal side, or the method of transmitting the paging on the network device side is performed.

The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The solution provided by the embodiment of the present invention can ensure the resources used by the NB-IOT system for paging by extending the granularity of the paging resource allocation. In addition, the retransmission paging message can be transmitted by using the remaining subframes, which can not only fully utilize the radio resources to transmit the paging message, but also reduce the congestion of the paging message transmission. Through the design of the NB of the NB-IOT system, the retransmission of the paging message is realized, and the reliability of the paging of the NB-IOT system is ensured.

Claims

A method for monitoring paging, the method comprising:

The terminal generates first paging monitoring identification information;

Determining, by the terminal, the paging superframe that the terminal needs to monitor according to the first paging monitoring identification information, and monitoring the paging on the paging superframe.
The method of claim 1, the first paging monitor identification information generated by:

UEID PH = [Floor (IMSI / first value)] mod 1024; or,

UEID PH = [Floor (STMSI / first value)] mod 1024;

The first value is a predefined constant or a value associated with the extended paging period eDRX of the terminal;

The STMSI is a temporary mobile station identification code that is allocated by the network side and is valid within a certain range; the IMSI is an international mobile subscriber identity code, and the Floor is rounded down.
A method of transmitting a page, the method comprising:

The network side device acquires the first paging monitoring identification information;

The network side device determines, according to the first paging monitoring identification information, a paging superframe to be monitored by the to-be-paged terminal, and sends a paging to the to-be-paged terminal on the paging superframe.
The method according to claim 3, wherein said first paging monitor identification information is generated by:

UEID PH = [Floor (IMSI / first value)] mod 1024; or,

UEID PH = [Floor (STMSI / first value)] mod 1024;

The first value is a predefined constant or a value associated with the extended paging period eDRX of the terminal;

The STMSI is a temporary mobile station identification code that is allocated by the network side and is valid within a certain range; the IMSI is an international mobile subscriber identity code, and the Floor is rounded down.
A terminal comprising:

Generating unit configured to generate first paging monitoring identification information;

The paging monitoring unit is configured to determine, according to the first paging monitoring identification information, a paging superframe that the terminal needs to monitor, and monitor the paging on the paging superframe.
The terminal according to claim 5, wherein the generating unit generates the first paging monitor identification information according to the following formula:

UEID PH = [Floor (IMSI / first value)] mod 1024; or,

UEID PH = [Floor (STMSI / first value)] mod 1024;

The first value is a predefined constant or a value associated with the extended paging period eDRX of the terminal;

The STMSI is a temporary mobile station identification code that is allocated by the network side and is valid within a certain range; the IMSI is an international mobile subscriber identity code, and the Floor is rounded down.
A base station comprising:

An identification information acquiring unit configured to acquire first paging monitoring identification information;

And a sending unit, configured to determine, according to the first paging monitoring identification information, a paging superframe to be monitored by the to-be-paged terminal, and send a paging to the to-be-paged terminal on the paging superframe.
The base station according to claim 7, wherein said first paging monitor identification information is generated by:

UEID PH = [Floor (IMSI / first value)] mod 1024; or,

UEID PH = [Floor (STMSI / first value)] mod 1024;

The first value is a predefined constant or a value associated with the extended paging period eDRX of the terminal;

The STMSI is a temporary mobile station identification code that is allocated by the network side and is valid within a certain range; the IMSI is an international mobile subscriber identity code, and the Floor is rounded down.
A method for paging a narrowband Internet of Things NB-IOT terminal, the method comprising:

The terminal obtains the paging parameter that is sent by the base station, where the paging frame interval included in the paging parameter sent by the base station is determined according to the number of subframes that the k radio frames can use for paging, where k Is a positive integer;

The terminal monitors the paging message in the paging frame PF according to the paging parameter.
The method of claim 9, wherein said terminal is based on said paging parameter, Listening for paging messages within a paging frame includes:

Determining, by the paging parameter, the radio frame occupied by the PF in the paging transmission window PTW that can be used to send the paging message;

The terminal monitors a paging message at a location of a paging occasion PO within the determined radio frame;

The paging parameter includes at least a paging frame interval, a location of a starting PO in the PF, a discontinuous reception DRX cycle, and an initial length of the PTW.
The method of claim 10, wherein the determining, by the paging parameter, the radio frame occupied by all paging frames PF in the PTW that can be used to send the paging message comprises:

The terminal monitors the PO in the PTW by using the DRX mode, and calculates the system frame number SFN PF of the radio frame occupied by the PF for sending the paging message in the PTW by using the following formula:

(SFN PF -i)=PTW start +k 1 *T+k 2 ;

Alternatively, SFN PF = PTW star + k 1 * T + k 2 ;

Where i=[1,M-1],
k 2 =(TdivN)*(UE_IDmodN);

M is the number of radio frames in the paging frame interval broadcast by the base station, and the PF interval is the PF interval.

PTW start represents the system frame number of the starting radio frame of the PTW, and the PTW length is the length of the PTW;

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

The UE_ID is IMSI mod 1024, and the IMSI is the international mobile subscriber identity of the terminal.
The method of claim 10, wherein the PO shares a subframe with at least one of a secondary synchronization signal and a system information block SIB1; and/or,

The subframe in which the PO is located is located on a different radio frame from the subframe in which at least one of the SSS and the SIB1 is located;

The shared subframe satisfies at least one of the following conditions:

a subframe in which the PO is located and a subframe in which at least one of the SSS and the SIB1 is located is located in the same subframe of the same radio frame;

The subframe in which the PO is located is located on the same subframe as the at least one of the SSS and the SIB1 in different radio frames.
The method of claim 11 wherein the method further comprises:

The terminal measures the coverage level, and determines the PTW length according to the mapping relationship between the coverage level and the PTW length, and calculates the time domain location information of the PF according to the extended discontinuity reception period TeDRX and the discontinuous reception period TDRX.
The method of claim 9 wherein the method further comprises:

The terminal monitors the PO in the PF of the retransmission paging message by means of blind detection to receive the retransmitted paging message.
The method of any of claims 10 to 14, wherein the method further comprises:

The terminal forwards at least one of the measured coverage level and the PTW length, and at least one of the TeDRX and the TDRX to the base station by using the mobility management entity MME; or

The terminal reports at least one of the measured coverage level and the PTW length to the base station, and forwards at least one of the TeDRX and the TDRX to the base station by using the mobility management entity MME.
A method for paging a narrowband Internet of Things NB-IOT terminal, the method comprising:

The base station determines the paging frame interval according to the number of subframes that the k radio frames can use for paging, and sends the paging parameter corresponding to the determined paging frame interval to the terminal, where k is a positive integer;

The base station sends a paging message to the terminal in the paging frame PF according to the paging parameter.
The method of claim 16, wherein the sending, by the base station, the paging message to the terminal in the paging frame PF according to the paging parameter comprises:

The base station determines, by using the paging parameter, a radio frame occupied by all PFs in the paging transmission window PTW that can be used to send a paging message, where the paging parameter includes at least a paging frame interval and a PF. The position of the initial paging opportunity PO, the discontinuous reception DRX cycle, and the initial length of the PTW;

The base station sends a paging message up and down at the location of the PO within the determined radio frame.
The method of claim 17, wherein the base station determines, by the paging parameter, that all radio frames occupied by the paging frame PF in the PTW that can be used to send the paging message include:

The system frame number SFN PF of the radio frame occupied by all the PFs in the PTW that can be used to send the paging message is calculated by the following formula;

(SFN PF -i)=PTW start +k 1 *T+k 2 ; alternatively, SFN PF =PTW start +k 1 *T+k 2 ;

Where i=[1,M-1],
k 2 =(TdivN)*(UE_IDmodN);

M is the number of radio frames in the paging frame interval broadcast by the base station, and the PF interval is the PF interval.

PTW start represents the system frame number of the starting radio frame of the PTW, and the PTW length is the length of the PTW;

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

The UE_ID is IMSI mod 1024, and the IMSI is the international mobile subscriber identity of the terminal.
The method of claim 17 or 18, wherein the method further comprises:

The base station calculates time domain location information of the PF according to the PTW length, the extended discontinuous reception period TeDRX, and the discontinuous reception period TDRX.
The method of claim 19, wherein the method further comprises:

Receiving, by the base station, at least one of a coverage level and a PTW length reported by the terminal, and receiving, by the mobility management entity MME, at least one of TeDRX and TDRX measured by the terminal; or

The base station receives at least one of a coverage level and a PTW length measured by the terminal, and at least one of TeDRX and TDRX through the MME.
The method of claim 20, wherein the method further comprises:

When the number of subframes that an SFN can use for paging changes, the base station re-determines the paging frame interval, and sends the paging parameter corresponding to the re-determined paging frame interval to the next system message broadcast. terminal.
The method of claim 17 wherein:

The PO shares a subframe with at least one of the secondary synchronization signal and the system information block SIB1; and/or,

The subframe in which the PO is located is located on a different radio frame from the subframe in which at least one of the SSS and the SIB1 is located;

The shared subframe satisfies at least one of the following conditions:

a subframe in which the PO is located and a subframe in which at least one of the SSS and the SIB1 is located is located in the same subframe of the same radio frame;

The subframe in which the PO is located is located on the same subframe as the at least one of the SSS and the SIB1 in different radio frames.
A terminal comprising:

An obtaining unit, configured to obtain a paging parameter sent by the base station, where the paging frame interval included in the paging parameter sent by the base station is determined according to the number of subframes that the k wireless frames can use for paging Where k is a positive integer;

The listening unit is configured to monitor the paging message in the paging frame PF according to the paging parameter.
The terminal according to claim 23, wherein the monitoring unit monitors the paging message in the paging frame according to the paging parameter, including:

The monitoring unit determines, by using a paging parameter, a radio frame occupied by all paging frames PF in the paging transmission window PTW that can be used to send a paging message;

Monitoring a paging message at a location of a paging occasion PO within the determined radio frame;

The paging parameter includes at least a paging frame interval, a location of a starting PO in the PF, a discontinuous reception DRX cycle, and an initial length of the PTW.
The terminal according to claim 24, wherein the intercepting unit determines, by the paging parameter, that all radio frames occupied by the paging frame PF in the radio paging transmission window PTW that can be used for transmitting the paging message include:

The DR is used to monitor the PO in the PTW, and the system frame number SFN PF of the radio frame occupied by the paging frame PF that can be used for sending the paging message in the PTW is calculated by the following formula;

(SFN PF -i)=PTW start +k 1 *T+k 2 ; alternatively, SFN PF =PTW start +k 1 *T+k 2 ;

Where i=[1,M-1],
k 2 =(TdivN)*(UE_IDmodN);

M is the number of radio frames in the paging frame interval broadcast by the base station, and the PF interval is the PF interval.

PTW start represents the system frame number of the starting radio frame of the PTW, and the PTW length is the length of the PTW;

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

The UE_ID is IMSI mod 1024, and the IMSI is the international mobile subscriber identity of the terminal.
The terminal of claim 24, wherein the PO shares a subframe with at least one of a secondary synchronization signal and a system information block SIB1; and/or,

The subframe in which the PO is located is located on a different radio frame from the subframe in which at least one of the SSS and the SIB1 is located;

The shared subframe satisfies at least one of the following conditions:

a subframe in which the PO is located and a subframe in which at least one of the SSS and the SIB1 is located is located in the same subframe of the same radio frame;

The subframe in which the PO is located is located on the same subframe as the at least one of the SSS and the SIB1 in different radio frames.
The terminal of claim 25, further comprising:

The calculating unit is configured to measure the coverage level, and determine the PTW length according to the mapping relationship between the coverage level and the PTW length, and calculate the time domain location information of the PF according to the extended discontinuous reception period TeDRX and the discontinuous reception period TDRX.
The terminal of claim 23, wherein

The listening unit is further configured to monitor, by means of blind detection, the PO in the PF of the retransmission paging message to receive the retransmitted paging message.
The terminal according to any one of claims 24 to 28, further comprising:

a reporting unit configured to forward the measured coverage level and/or PTW length, and the TeDRX and/or TDRX to the base station by using the mobility management entity MME; or

The measured coverage level and/or PTW length is reported to the base station, and the TeDRX and/or TDRX are forwarded to the base station through the mobility management entity MME.
A base station comprising:

a parameter sending unit, configured to determine a paging frame interval according to the number of subframes that the k radio frames can use for paging, and send the paging parameter corresponding to the determined paging frame interval to the terminal, where k is Positive integer

The paging unit is configured to send a paging message to the terminal in the paging frame PF according to the paging parameter.
The base station according to claim 30, wherein the paging unit sends a paging message to the terminal in the paging frame PF according to the paging parameter, including:

The paging unit determines, by using a paging parameter, a radio frame occupied by all PFs in the radio paging transmission window PTW that can be used to send a paging message, where the paging parameter includes at least a paging frame interval and a PF. The location of the initial paging occasion PO, the discontinuity reception DRX cycle, and the initial length of the PTW;

A paging message is sent up and down at the location of the PO within the determined radio frame.
The base station according to claim 31, wherein the paging unit determines, by using a paging parameter, that all radio frames occupied by the PF in the radio paging transmission window PTW that can be used to send the paging message include:

The paging unit calculates, by using the following formula, a system frame number SFN PF of a radio frame occupied by all PFs in the PTW that can be used to send a paging message;

(SFN PF -i)=PTW start +k 1 *T+k 2 ;

Alternatively, SFN PF = PTW start + k 1 * T + k 2 ;

Where i=[1,M-1],
k 2 =(TdivN)*(UE_IDmodN);

M is the number of radio frames in the paging frame interval broadcast by the base station, and the PF interval is the PF interval.

PTW start represents the system frame number of the starting radio frame of the PTW, and the PTW length is the length of the PTW;

T is the DRX cycle of the terminal, represented by the number of radio frames;

N is the number of PFs in a T;

The UE_ID is IMSI mod 1024, and the IMSI is the international mobile subscriber identity of the terminal.
A base station according to claim 31 or 32, wherein

The paging unit is further configured to calculate time domain location information of the PF according to the PTW length, the extended discontinuity reception period TeDRX, and the discontinuous reception period TDRX.
The base station according to claim 33, further comprising:

The receiving unit is configured to directly receive at least one of a coverage level and a PTW length reported by the terminal, and receive, by the mobility management entity MME, at least one of TeDRX and TDRX measured by the terminal; or receive an coverage level measured by the terminal by using the MME. And at least one of a length of PTW and at least one of TeDRX and TDRX.
The base station according to claim 34, wherein

The parameter sending unit is further configured to: when the number of subframes in which the radio frame can be used for paging changes, re-determine the paging frame interval, and send the re-determined paging parameter to the next system message broadcast. terminal.
The base station according to claim 31, wherein

The PO shares a subframe with at least one of the secondary synchronization signal and the system information block SIB1; and/or,

The subframe in which the PO is located is located on a different radio frame from the subframe in which at least one of the SSS and the SIB1 is located;

The shared subframe satisfies at least one of the following conditions:

a subframe in which the PO is located and a subframe in which at least one of the SSS and the SIB1 is located is located in the same subframe of the same radio frame;

The subframe in which the PO is located is located on the same subframe as the at least one of the SSS and the SIB1 in different radio frames.
A computer storage medium comprising a set of instructions that, when executed, cause at least one processor to perform the method of listening to a page as recited in claim 1 or 2, or as claimed in claim 3 Or a method of transmitting a page, or a method of paging a narrowband Internet of Things NB-IOT terminal according to any one of claims 9 to 15, or performing the method of any one of claims 16 to 22. The method of paging the NB-IOT terminal.