WO2017214967A1

WO2017214967A1 - Paging message transmission method, first device and second device

Info

Publication number: WO2017214967A1
Application number: PCT/CN2016/086151
Authority: WO
Inventors: 刘蕾; 于映辉
Original assignee: 华为技术有限公司
Priority date: 2016-06-17
Filing date: 2016-06-17
Publication date: 2017-12-21
Also published as: CN108432317A; CN108432317B

Abstract

Provided are a paging message transmission method, a first device and a second device for paging message transmission between a base station and a terminal device on the basis of NB-IoT whose physical layer has been changed. When the first device is a base station, the second device is a terminal device, and when the first device is a terminal device, the second device is a base station. The method comprises the following steps: the first device acquires a first cycle, first information and an identification of the terminal device, the first cycle being a cycle of a physical downlink control channel (PDCCH) search space, the first information comprising information of a start frame of the PDCCH search space and information of a start subframe, and the PDCCH search space being used by the terminal device to monitor a paging message transmitted by a PDCCH receiving base station in the PDCCH search space; the first device determines a paging timing on the basis of the first cycle, the first information and the identification of the terminal device; and the paging message is transmitted between the first device and the second device at the paging timing.

Description

Paging message transmission method, first device and second device

Technical field

The present invention relates to the field of wireless communications, and in particular, to a paging message transmission method, a first device, and a second device.

Background technique

Cellular-based Narrow Band Internet of Things (NB-IoT) is an important branch of the Internet of Things (IoT) technology. NB-IoT has low-rate and long-cycle services. NB-IoT Supporting the connection of a large number of terminal devices, NB-IoT requires low cost and low power consumption of the terminal devices connected to it.

Currently, before the physical layer change of NB-IoT, NB-IoT implements paging message transmission between the base station and the terminal device in the same manner as in the Long Term Evolution (LTE) system. In the LTE system, the terminal device may receive paging messages discontinuously in an idle state to save power consumption. The base station and the terminal device use the same method to determine the paging occasion for sending the paging message, that is, according to the terminal device. The period of the continuous receiving (DRX) paging message and the identifier of the terminal device determine the frame and the subframe where the paging occasion is located, the base station sends a paging message at the determined paging occasion, and the terminal device determines the paging occasion The physical downlink control channel (PDCCH) is monitored to receive the paging message.

In order to support deep coverage, NB-IoT changes the frame and subframe where the starting position of the PDCCH search space for paging in the physical layer of NB-IoT is changed compared to the LTE system. If the physical layer of the NB-IoT is changed and continues to use the paging message transmission method in the existing LTE system, the NB-IoT physical layer change cannot be well adapted, and the terminal device cannot obtain the information at one time with a high probability. Effective paging opportunities increase the complexity and power consumption of the terminal equipment.

Summary of the invention

The present invention provides a paging message transmission method, a first device, and a second device, which are used to The NB-IoT after the physical layer change implements paging message transmission between the base station and the terminal device.

It should be particularly noted that, in the embodiment of the present invention, when the first device is a network device (for example, a base station), the second device may be a terminal device; or when the first device is a terminal device, the second device may be Network device (such as a base station).

In one aspect, the present invention provides a paging message transmission method, including:

The first device acquires the first period, the first information, and the identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, and the first information includes information about a start frame of the PDCCH search space. And the information of the start subframe, where the PDCCH search space is used by the terminal device to monitor the PDCCH receiving the paging message sent by the base station in the PDCCH search space;

Determining, by the first device, a paging occasion according to the first period, the first information, and an identifier of the terminal device;

At the paging occasion, paging message transmission is performed between the first device and the second device.

In this way, the period of the PDCCH search space for paging (ie, the first period), the information of the start frame of the PDCCH search space for paging, and the information of the starting subframe (ie, the first information) are added to In the process of determining the paging occasion for transmitting the paging message, to adapt to the NB-IoT after the physical layer change. The second device determines the paging occasion in the same manner as the first device, and further implements, at the paging occasion, the paging message transmission between the first device and the second device, that is, the determined paging of the base station The paging message is sent to the terminal device at the timing, and the terminal device receives the paging message sent by the base station at the determined paging occasion.

In a possible implementation, the determining, by the first device, the paging occasion according to the first period, the first information, and the identifier of the terminal device, including:

Determining, by the first device, the frame where the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information;

In the frame in which the paging occasion is located, the first device determines, according to information about a starting subframe of the PDCCH search space in the first information, a subframe in which the paging occasion is located.

It should be noted that the method needs to be performed under the condition that the second period is less than or equal to the first set value, where the second period refers to a period in which the terminal device discontinuously receives the paging message.

In a possible implementation, the first device determines, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH, the frame where the paging occasion is located. ,include:

The first device determines a frame in which the paging occasion is located according to the following formula:

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging _occasions, CSS _period represents the first period, UE_ID represents the terminal device identification, N denotes the non-negative integer, frame_offset search space indicates the starting frame of the PDCCH The offset of the starting frame in the message, Ns=1024/CSS_period.

In a possible implementation manner, the method further includes:

The first device acquires a second period, where the second period is a period in which the terminal device discontinuously receives a paging message;

Determining, by the first device, the paging occasion according to the first period, the first information, and the identifier of the terminal device, including:

The first device determines a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period.

In a possible implementation, when the second period is greater than the first set value, the first device is configured according to the first period, the first information, the identifier of the terminal device, and the The second cycle determines the paging opportunity, including:

Determining, by the first device, at least one superframe where the paging occasion is located according to the identifier of the terminal device and the second period;

Performing the following operations for each superframe in the at least one superframe:

Determining, by the first device, the start of the paging window in the superframe according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information frame;

Determining, by the first device, an end frame of the paging window in the superframe according to a start frame of the paging window and a length of the paging window;

Between the start frame of the paging window and the end frame of the paging window, the first device is configured according to Determining, in the first period, an identifier of the terminal device, and a start frame of the search space of the PDCCH in the first information, a frame in which the paging occasion is located;

In a possible implementation manner, the first device determines, according to the first period, an identifier of the terminal device, and information about a start frame of a search space of the PDCCH in the first information, The starting frame of the paging window in the superframe, including:

The first device determines a starting frame of the paging window according to the following formula:

PW_start=CCS _period *i _eDRX +frame_offset

Wherein, PW_start indicates a start frame of the paging window, CCS _period indicates the first period, and frame_offset indicates an offset of a start frame in information of a start frame of a search space of the PDCCH, i _eDRX =UE_ID Mod (1024/CCS _period ), UE_ID indicates the identity of the terminal device.

In a possible implementation manner, when the information about the start frame of the search space of the PDCCH includes the offset of the multiple start frames, the determining, by the first device, the frame_offset includes:

The first device determines i_s according to the formula i_s=floor(UE_ID/N) mod Ns; wherein, the UE_ID represents the identifier of the terminal device, N represents a non-negative integer, and Ns represents the start frame of the search space of the PDCCH. The number of offsets of the starting frame in the message;

The first device determines the frame_offset according to the determined i_s and a preset relationship between i_s and frame_offset.

In a possible implementation manner, the first device determines, according to the first period, an identifier of the terminal device, and information about a start frame of a search space of the PDCCH in the first information, The frame where the paging opportunity is located, including:

SFN=CSS _{_period} *(floor(UE_ID/N)mod Ns

Wherein, SFN denotes a frame where the paging _occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N is a nonnegative integer, Ns represents the start frame of the search space of the PDCCH The number of offsets of the starting frame in the message.

In a possible implementation manner, when the second period is greater than a first set value, and the first period is less than or equal to a second set value, the first device is configured according to the first period, The first information, the identifier of the terminal device, and the second period determine a paging occasion, including:

Determining, by the first device, a start frame of a paging window in the superframe according to the second set value and an identifier of the terminal device;

Between the start frame of the paging window and the end frame of the paging window, the first device divides the paging window into at least one window whose length is the second set value, Determining, at each window of the at least one window, the paging occasion according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information Frame

In a possible implementation, the first device determines, according to the identifier of the terminal device and the second period, at least one superframe where the paging occasion is located, including:

The first device determines at least one superframe where the paging occasion is located according to the following formula:

H-SFN mod T _{eDRX, H} = (UE_ID mod T _{eDRX, H} )

The H_SFN indicates at least one superframe where the paging occasion is located, T _{eDRX, H} indicates the second period, and the UE_ID indicates the identifier of the terminal device.

In a possible implementation, the determining, by the first device, the start frame of the paging window in the super frame according to the second set value and the identifier of the terminal device, including:

SFN=A*[floor(UE_ID/N)mod 4]

Wherein, SFN represents a start frame of the paging window, and A represents the second set value, UE_ID Indicates the identity of the terminal device, and N represents a non-negative integer.

In a possible implementation manner, the determining, by the first device, the end frame of the paging window in the super frame according to a start frame of the paging window and a length of the paging window, including:

The first device determines an end frame of the paging window according to the following formula:

PW_end=(PW_start+L*100-1)mod 1024

Wherein PW_end represents the end frame of the paging window, PW_start represents the start frame of the paging window, and L represents the length of the paging window.

In a possible implementation manner, the first device determines, according to the first period, an identifier of the terminal device, and information about a start frame of the PDCCH search space in the first information, The frame where the call is located, including;

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging _occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N represents a non-negative integer, frame_offset start frame information indicating the PDCCH search space The offset of the start frame, Ns = (max CSS_period) / CSS_period, where max CSS_period represents the period of the largest PDCCH search space supported by the system.

In a possible implementation, the determining, by the first device, the subframe in which the paging occasion is located according to the information about the starting subframe of the PDCCH search space in the first information, including:

If the information about the start subframe of the PDCCH search space includes only an offset of the start subframe, the first device uses the offset of the start subframe as the paging occasion. Subframe

If the information of the start subframe of the PDCCH search space includes an offset of multiple start subframes, the first device determines i_s according to the formula i_s=floor(UE_ID/N) mod Ns, and determines according to The corresponding relationship between the i_s and the preset i_s and the subframe determines the subframe in which the paging occasion is located:

The UE_ID indicates the identifier of the terminal device, N indicates a non-negative integer, and Ns indicates the number of offsets of the starting subframe in the information of the starting subframe of the search space of the PDCCH.

On the other hand, the first device provided by the embodiment of the present invention includes:

a processing unit, configured to acquire a first period, a first information, and an identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, where the first information includes a start frame of the PDCCH search space And the information of the start subframe, where the PDCCH search space is used by the terminal device to monitor the PDCCH receiving the paging message sent by the base station in the PDCCH search space;

The processing unit is configured to determine a paging occasion according to the first period, the first information, and an identifier of the terminal device;

And a transceiver unit, configured to perform paging message transmission with the second device on the paging occasion determined by the processing unit.

In a possible implementation manner, the processing unit is specifically configured to:

Determining, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, a frame where the paging occasion is located;

The subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information, in the frame in which the paging occasion is located.

In a possible implementation, the processing unit determines, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH, the frame where the paging occasion is located. Specifically for:

The frame in which the paging opportunity is located is determined according to the following formula:

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

In a possible implementation manner, the processing unit is further configured to:

Obtaining a second period, where the second period is a period in which the terminal device discontinuously receives a paging message;

The processing unit is specifically configured to:

Determining a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period.

In a possible implementation manner, when the processing unit determines the paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period, the processing unit is specifically configured to:

Determining, according to the identifier of the terminal device and the second period, at least one superframe where the paging occasion is located, when the second period is greater than the first set value;

Determining, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, a start frame of the paging window in the superframe;

Determining an end frame of the paging window in the superframe according to a start frame of the paging window and a length of the paging window;

Between the start frame of the paging window and the end frame of the paging window, according to the first period, the identifier of the terminal device, and the search space of the PDCCH in the first information Information of the start frame, determining a frame in which the paging opportunity is located;

In a possible implementation, the processing unit determines the super according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information. When the start frame of the paging window in the frame is used, it is specifically used to:

The starting frame of the paging window is determined according to the following formula:

PW_start=CCS _period *i _eDRX +frame_offset

In a possible implementation manner, when the processing unit determines the frame_offset, the method specifically includes:

Decoding an offset of a plurality of start frames in information of a start frame of a search space of the PDCCH I_s is determined according to the formula i_s=floor(UE_ID/N) mod Ns; wherein, UE_ID represents the identifier of the terminal device, N represents a non-negative integer, and Ns represents the information of the start frame of the search space of the PDCCH. The number of offsets of the start frame;

The frame_offset is determined according to the determined i_s and a correspondence between the preset i_s and the frame_offset.

In a possible implementation, the processing unit determines the homing according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information. When calling the frame where the time is, it is used to:

SFN=CSS _{_period} *(floor(UE_ID/N)mod Ns

When the second period is greater than the first set value, and the first period is less than or equal to the second set value, determining, according to the identifier of the terminal device and the second period, that the paging occasion is located At least one superframe;

Determining, according to the second set value and the identifier of the terminal device, a start frame of a paging window in the superframe;

Between the start frame of the paging window and the end frame of the paging window, dividing the paging window into at least one window whose length is the second set value, in the at least one window Determining, in each window, a frame in which the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information;

In a possible implementation manner, the processing unit determines, according to the identifier of the terminal device and the second period, when at least one superframe in which the paging occasion is located, is specifically used;

Determining at least one superframe in which the paging opportunity is located according to the following formula:

H-SFN mod T _{eDRX, H} = (UE_ID mod T _{eDRX, H} )

In a possible implementation, the processing unit determines, according to the second set value and the identifier of the terminal device, a start frame of the paging window in the super frame, specifically used to:

SFN=A*[floor(UE_ID/N)mod 4]

Wherein, SFN represents a start frame of the paging window, A represents the second set value, UE_ID represents an identifier of the terminal device, and N represents a non-negative integer.

In a possible implementation manner, the processing unit determines, according to a start frame of the paging window and a length of the paging window, an end frame of the paging window in the super frame, specifically to:

The end frame of the paging window is determined according to the following formula:

PW_end=(PW_start+L*100-1)mod 1024

In a possible implementation manner, the processing unit determines the paging according to the first period, an identifier of the terminal device, and information about a start frame of the PDCCH search space in the first information. When the frame where the timing is located, it is used specifically;

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

In a possible implementation manner, the processing unit determines, according to information about a starting subframe of the PDCCH search space in the first information, when the subframe in which the paging occasion is located is specifically used to:

And if the information about the start subframe of the PDCCH search space includes only the offset of the start subframe, the offset of the start subframe is used as the subframe where the paging occasion is located;

If the information of the start subframe of the PDCCH search space includes offsets of multiple start subframes, determine i_s according to the formula i_s=floor(UE_ID/N) mod Ns, and preset according to the determined i_s and The corresponding relationship between the i_s and the subframe determines the subframe in which the paging occasion is located:

In another aspect, the second device provided by the embodiment of the present invention includes:

And a transceiver unit, configured to perform paging message transmission with the first device on the paging occasion determined by the processing unit.

In the frame where the paging occasion is located, according to the PDCCH search space in the first information The information of the starting subframe determines the subframe in which the paging occasion is located.

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

The processing unit is specifically configured to:

PW_start=CCS _period *i _eDRX +frame_offset

In a possible implementation manner, the processing unit determines the frame_offset, specifically:

When the information of the start frame of the search space of the PDCCH includes an offset of a plurality of start frames, determining i_s according to the formula i_s=floor(UE_ID/N) mod Ns; wherein, the UE_ID indicates the terminal device The identifier, N represents a non-negative integer, and Ns represents the number of offsets of the start frame in the information of the start frame of the search space of the PDCCH;

SFN=CSS _{_period} *(floor(UE_ID/N)mod Ns

In a possible implementation manner, the processing unit is configured according to the first period, the first The information, the identifier of the terminal device, and the second period determine the paging occasion, specifically used to:

H-SFN mod T _{eDRX, H} = (UE_ID mod T _{eDRX, H} )

SFN=A*[floor(UE_ID/N)mod 4]

PW_end=(PW_start+L*100-1)mod 1024

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

A paging message transmission method, a first device, and a second device provided by an embodiment of the present invention, Adding the period of the PDCCH search space for paging (ie, the first period), the information of the start frame of the PDCCH search space for paging, and the information of the starting subframe (ie, the first information) to be used for transmission The paging occasion of the paging message is determined during the process to adapt to the NB-IoT after the physical layer change. The base station and the terminal device use the technical solution provided in this embodiment to determine the same paging occasion. The base station sends a paging message to the terminal device at the determined paging occasion, and the terminal device receives the homing sent by the base station at the determined paging occasion. Call the message. The terminal device monitors the PDCCH in a idle state by using a discontinuous reception message to receive a paging message sent by the base station, thereby achieving the effect of saving power consumption of the terminal device.

DRAWINGS

FIG. 1 is a schematic diagram of a network connection of an NB-IoT according to an embodiment of the present invention;

2 is a schematic flowchart of a first paging message transmission method according to an embodiment of the present invention;

3 is a schematic flowchart of a second paging message transmission method according to an embodiment of the present invention;

4 is a schematic flowchart of a third paging message transmission method according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of a fourth paging message transmission method according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a first device according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of another first device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a second device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another second device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terminal device according to the embodiment of the present invention may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. The wireless terminal device can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and has a mobile The computers of the terminal devices, for example, may be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network. For example, personal communication service (PCS, Personal Communication Service) telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA, Personal Digital Assistant), etc. . The wireless terminal device may also be referred to as a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, and an Access Point. , Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

The paging message transmission method, the first device, and the second device provided by the embodiment of the present invention include, but are not limited to, the NB-IoT after the physical layer change. The 3GPP standard is based on cellular networks. By designing new air interfaces and making full use of the characteristics of narrowband technology to carry the Internet of Things (IoT) services, this type of Internet of Things is called NB-IoT. FIG. 1 is a schematic diagram of a network connection of the NB-IoT, where the NB-IoT includes a base station and a terminal device (the device other than the base station in FIG. 1 is a terminal device), the base station and the terminal device, the base station, the base station, the terminal device, and the terminal. Devices are connected to each other. Compared with traditional cellular networks, NB-IoT services have the characteristics of low speed and long period. NB-IoT supports the connection of a large number of terminal devices. NB-IoT requires low cost and low power consumption of the connected terminal devices.

Before the physical layer change of NB-IoT, the PDCCH search space for paging is fixed to 0, 4, 5, and 9 in the start subframe of each frame. In order to support deep coverage, the NB-IoT physical domain layer has changed the frame and subframe where the PDCCH search space starts for paging, and the PDCCH for paging in the physical layer of the NB-IoT The search space appears from the frame start period of sequence number 0, and the period can be flexibly configured according to the coverage level supported by NB-IoT for searching. The start frame of the PDCCH search space of the call can be flexibly configured into one or more, and the start subframe of the PDCCH search space for paging in the start frame can be flexibly configured into one or more. For example, Table 1 below shows the configuration of the period in which the PDCCH search space for paging occurs, and Table 2 shows the configuration of the start frame and the start subframe of the PDCCH search space for paging.

Table I

Table II

索引(Index)Index (Index)	00	11	22	33
(起始帧，起始子帧)(start frame, start subframe)	(0，0)(0,0)	(0，5)(0,5)	(1，0)(1,0)	(1，5)(1,5)
索引(Index)Index (Index)	44	55	66	77
(起始帧，起始子帧)(start frame, start subframe)	(2，0)(2,0)	(2，5)(2,5)	(3，0)(3,0)	(3,5)(3,5)
索引(Index)Index (Index)	88	99	1010	1111
(起始帧，起始子帧)(start frame, start subframe)	(4，0)(4,0)	(4，5)(4,5)	(6，0)(6,0)	(6，5)(6,5)
索引(Index)Index (Index)	1212	1313	1414	1515
(起始帧，起始子帧)(start frame, start subframe)	(8，0)(8,0)	(8，5)(8,5)	(12，0)(12,0)	(12，5)(12,5)
索引(Index)Index (Index)	1616	1717	1818	1919
(起始帧，起始子帧)(start frame, start subframe)	(16，0)(16,0)	(16，5)(16,5)	(24，0)(24,0)	(24，5)(24,5)
索引(Index)Index (Index)	2020	21twenty one	22twenty two	23twenty three
(起始帧，起始子帧)(start frame, start subframe)	(32，0)(32,0)	(32，5)(32,5)	(48，0)(48,0)	(48，5)(48,5)
索引(Index)Index (Index)	24twenty four	2525	2626	2727
(起始帧，起始子帧)(start frame, start subframe)	(64，0)(64,0)	(64，5)(64,5)	(96，0)(96,0)	(96，5)(96,5)
索引(Index)Index (Index)	2828	2929	3030	3131
(起始帧，起始子帧)(start frame, start subframe)	(128，0)(128,0)	(128，5)(128,5)	(192，0)(192,0)	(192，5)(192,5)

NB-IoT after the physical layer change, if the paging transmission method in the existing LTE system is still used, the terminal device cannot obtain a valid paging occasion for transmitting the paging message at a large probability, that is, cannot be effective. The paging message transmission method, the first device, and the second device provided by the embodiment of the present invention are provided by the NB-IoT after the physical layer change. The paging message transmission method, the first device, and the second device provided by the embodiment of the present invention, the period of the PDCCH search space used for paging, the information of the start frame of the PDCCH search space used for paging, and The information of the starting subframe is added to the determination process of the paging occasion for transmitting the paging message to accommodate the NB-IoT after the physical layer change. The method, the first device, and the second device are based on the same inventive concept. Since the principles of the method, the first device, and the second device are similar, the implementation of the first device, the second device, and the method may be referred to each other. The repetitions are not repeated here.

A method and apparatus for determining a paging occasion according to an embodiment of the present invention are described in detail below. It should be noted that the order of presentation of the embodiments of the present invention represents only the order of the embodiments, and does not represent the advantages and disadvantages of the technical solutions provided by the embodiments.

Embodiment 1

As shown in FIG. 2, an embodiment of the present invention provides a paging message transmission method, including:

S201: The first device acquires a first period, a first information, and an identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, where the first information includes information about a start frame of the PDCCH search space. The information of the start subframe, the PDCCH search space is used by the terminal device to monitor the PDCCH receiving the paging message sent by the base station in the PDCCH search space.

The first period and the first information may be flexibly configured by the network. For example, the first period and the second information may respectively adopt the configurations shown in Tables 1 and 2 above. The identity of the terminal device is calculated by an International Mobile Subscriber Identification Number (IMSI) module 1024, which is a flag that distinguishes the mobile user.

S202. The first device determines a paging occasion according to the first period, the first information, and the identifier of the terminal device.

S203. Perform paging message transmission between the first device and the second device at the paging occasion.

The paging occasion (Paging Occasion, PO) refers to the paging moment, that is, the frame and subframe in which the paging occasion is located.

In one example, the method illustrated in FIG. 2 further includes:

The first device acquires a second period, where the second period refers to a period of the discontinuous reception (DRX) paging message of the terminal device.

When the second period is greater than the first set value, the method for determining, by the first device, the paging occasion according to the first period, the first information, and the identifier of the terminal device in the S202 includes:

The first device determines the paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period.

The first set value can be set to an even multiple of 2.56 seconds, such as 5.12 seconds, 10.24 seconds, 20.48 seconds, etc., and the DRX cycle of more than 5.12 seconds (ie, 512 radio frames) is generally referred to as extended discontinuous reception. Reception, eDRX) cycle.

The method for determining, by the first device, the paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period is as shown in FIG. 3, and the details are as follows:

S301. The first device determines, according to the identifier of the terminal device and the second period, at least one superframe where the paging occasion is located.

Exemplarily, the first device may determine at least one superframe where the paging occasion is located according to the following formula 1:

H-SFN mod T _{eDRX, H} = (UE_ID mod T _{eDRX, H} ) Equation 1

In the above formula 1, H-SFN indicates at least one superframe in which the paging occasion is located, T _{eDRX, H} indicates the second period, UE_ID indicates the identifier of the terminal device, and mod indicates the modulo operation, that is, A mod B indicates that A is divided by B. remainder.

Further, performing the following operations for each superframe in the at least one superframe to determine a paging occasion in each superframe of the at least one superframe by:

S302. The first device determines, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, a start frame of the paging window in the superframe.

The starting frame of the paging window refers to the frame where the starting position of the paging window is located.

The first device determines a starting frame of the paging window in the superframe according to the following formula 2:

PW_start=CCS _period *i _eDRX +frame_offset Equation 2

In the above formula 2, PW_start represents the start frame of the paging window in the superframe, CCS _period represents the first period, and frame_offset represents the offset of the start frame in the information of the start frame of the search space of the PDCCH, i _eDRX =UE_ID mod(1024/CCS _period ), UE_ID indicates the identity of the terminal device.

If the information of the start frame of the search space of the PDCCH includes the offset of the plurality of start frames, the first device determines i_s according to the following formula 3, and according to the i_s determined by the formula 3 and the preset i_s and frame_offset Corresponding relationship, determining frame_offset in formula 2;

I_s=floor(UE_ID/N)mod Ns Equation 3

In the above formula 3, UE_ID represents the identifier of the terminal device, N represents a non-negative integer, Ns represents the number of offsets of the start frame in the information of the start frame of the search space of the PDCCH, and floor (A) indicates no more than A. The largest integer.

Taking the offsets of the multiple start frames included in the information of the start frame of the search space of the PDCCH as 0, 1, 4, and 5 as an example, the correspondence between the preset i_s and the frame_offset may be as shown in Table 3. In the case where Ns is known, the frame_offset corresponding to i_s can be determined by looking up Table 3, and then the determined frame_offset is brought into Formula 2 to obtain PW_start.

Table 3

S303. The first device determines, according to a start frame of the paging window and a length of the paging window, an end frame of the paging window in the superframe.

The end frame of the paging window refers to the frame where the end position of the paging window is located.

The first device determines an end frame of the paging window in the superframe according to the following formula 4:

PW_end=(PW_start+L*100-1)mod 1024 Equation 4

In the above formula 4, PW_end represents the end frame of the paging window in the superframe, and PW_start represents The starting frame of the paging window in the superframe, L indicates the length of the paging window, and L can be configured by the upper layer in seconds. The paging window appears periodically, and the terminal device listens to the paging message sent by the base station in the paging window.

S304. The first device determines, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, between the start frame of the paging window and the end frame of the paging window. The frame where the call is located.

The first device determines the frame in which the paging occasion is located according to the following formula 5:

SFN=CSS _{_period} *(floor(UE_ID/N)mod Ns Equation 5

5 in the above equation, SFN denotes a frame where the paging _occasions, CSS _period represents a first period, UE_ID represents the identity of the terminal device, N is a nonnegative integer, Ns represents a start frame information of the PDCCH in the search space start frame The number of offsets.

S305. In the frame where the paging occasion is located, the first device determines, according to the information about the starting subframe of the PDCCH search space in the first information, the subframe in which the paging occasion is located.

The offset of the starting subframe in the information of the starting subframe of the PDCCH search space may be configured as one or more:

If the information about the start subframe of the PDCCH search space includes only the offset of the start subframe, the first device uses the offset of the start subframe as the subframe in which the paging occasion is located;

If the information of the start subframe of the PDCCH search space includes the offset of the plurality of start subframes, the first device determines i_s according to the following formula 6, and according to the i_s determined by the formula 6 and the preset i_s and the sub- The correspondence between the frames determines the subframe in which the paging opportunity is located:

I_s=floor(UE_ID/N)mod Ns Equation 6

In the above formula 6, UE_ID represents the identity of the terminal device, N represents a non-negative integer, and Ns represents the number of offsets of the starting subframe in the information of the starting subframe of the search space of the PDCCH.

Taking the offsets of the multiple starting subframes included in the information of the starting subframe of the search space of the PDCCH as 0, 1, 4, and 5 as an example, the correspondence between the preset i_s and the subframe may be as shown in Table 4. As shown, in the case where Ns is known, the subframe corresponding to i_s can be determined by the lookup table 4, and the subframe corresponding to the i_s is the subframe in which the paging occasion is located.

Table 4

In another example, the method shown in FIG. 2 further includes:

The first device acquires a second period, where the second period refers to a DRX period of the terminal device.

When the second period is greater than the first set value, and the first period is less than or equal to the second set value, the method for determining, by the first device, the paging occasion according to the first period, the first information, and the identifier of the terminal device includes: :

The first set value can be set to an even multiple of 2.56 seconds, such as 5.12 seconds, 10.24 seconds, 20.48 seconds, etc.; the second set value can be set to 2.56 seconds or an even multiple of 2.56 seconds, such as 2.56 seconds, 5.12 seconds. , 10.24 seconds, 20.48 seconds, etc.; the first set value is greater than the second set value.

The method for determining, by the first device, the paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period is as shown in FIG. 4, and the details are as follows:

S401. The first device determines, according to the identifier of the terminal device and the second period, at least one superframe where the paging occasion is located.

The first device determines at least one superframe where the paging occasion is located according to the following formula 7:

H-SFN mod T _{eDRX, H} = (UE_ID mod T _{eDRX, H} ) Equation 7

In the above formula 7, H-SFN indicates at least one superframe in which the paging occasion is located, T _{eDRX, H} indicates the second period, and UE_ID indicates the identifier of the terminal device.

The method for the first device to determine the at least one superframe in S401 is the same as the method for the first device in S301 to determine at least one superframe.

Performing the following operations for each superframe in at least one superframe, determining a paging occasion in each superframe of the at least one superframe by:

S402. The first device determines, according to the second set value and the identifier of the terminal device, a start frame of the paging window in the superframe.

The first device determines the starting frame of the paging window according to the following formula 8:

SFN=A*[floor(UE_ID/N)mod 4] Equation 8

In the above formula 8, SFN represents the start frame of the paging window, A represents the second set value, UE_ID represents the identifier of the terminal device, and N represents a non-negative integer.

S403. The first device determines, according to a start frame of the paging window and a length of the paging window, an end frame of the paging window in the superframe.

The first device determines an end frame of the paging window in the superframe according to the following formula 9:

PW_end=(PW_start+L*100-1)mod 1024 Equation 9

In the above formula 9, PW_end represents the end frame of the paging window in the superframe, PW_start represents the start frame of the paging window in the superframe, and L represents the length of the paging window.

The method for determining the end frame of the paging window by the first device in S403 is the same as the method for determining the end frame of the paging window by the first device in S303 above.

S404. The first device divides the paging window into at least one window whose length is a second set value, between each frame of the at least one window, between the start frame of the paging window and the end frame of the paging window. The first device determines, according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information, the frame where the paging occasion is located.

The first device determines the frame in which the paging occasion is located according to the following formula 10:

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset Equation 10

In the above formula 10, SFN indicates a frame where the paging _occasions, CSS _period represents a first period, UE_ID represents the identity of the terminal device, N represents a non-negative integer, frame_offset information indicating the start frame in a PDCCH search space start frame The offset, Ns = (max CSS_period) / CSS_period, where max CSS_period represents the period of the largest PDCCH search space supported by the system.

S405: In the frame where the paging occasion is located, the first device determines, according to the information about the starting subframe of the PDCCH search space in the first information, the subframe in which the paging occasion is located.

If the information of the starting subframe of the PDCCH search space includes only the offset of the starting subframe, The first device uses the offset of the starting subframe as a subframe in which the paging occasion is located;

If the information of the start subframe of the PDCCH search space includes the offset of the plurality of start subframes, the first device determines i_s according to the following formula 11, and then according to the i_s determined by the formula 11 and the preset i_s and the sub- The correspondence between the frames determines the subframe in which the paging opportunity is located:

I_s=floor(UE_ID/N)mod Ns Equation 11

In the above formula 11, UE_ID represents the identity of the terminal device, N represents a non-negative integer, and Ns represents the number of offsets of the starting subframe in the information of the starting subframe of the search space of the PDCCH.

For the corresponding relationship between the pre-set i_s and the subframe, refer to Table 4 above, and details are not described herein again.

The method for determining, by the first device in S405, the subframe in which the paging occasion is located is the same as the method for determining, by the first device in S305, the subframe in which the paging occasion is located.

In another example, the method for determining, by the first device, the paging occasion according to the first period, the first information, and the identifier of the terminal device in S202 is as shown in FIG. 5, where the method needs to be less than or equal to the first setting in the second period. Executed under the condition that the second period refers to the DRX period of the terminal device, and the first set value may be set to an even multiple of 2.56 seconds, for example, 5.12 seconds, 10.24 seconds, 20.48 seconds, and the like.

The method shown in Figure 5 is as follows:

S501. The first device determines, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, the frame where the paging occasion is located.

The first device determines the frame in which the paging occasion is located according to the following formula 12:

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset Equation 12

In the above formula 12, SFN indicates a frame where the paging _occasions, CSS _period represents a first period, UE_ID represents the identity of the terminal device, N represents a non-negative integer, frame_offset start frame information indicating a PDCCH search space start frame Offset, Ns=1024/CSS_period.

S502. In the frame where the paging occasion is located, the first device determines, according to the information about the starting subframe of the PDCCH search space in the first information, the subframe in which the paging occasion is located.

If the information of the start subframe of the PDCCH search space includes only the offset of the start subframe, the offset of the start subframe is used as the subframe where the paging occasion is located;

If the information of the starting subframe of the PDCCH search space includes offsets of multiple starting subframes, The i_s is determined according to the following formula 13, and the subframe in which the paging occasion is located is determined according to the correspondence between the i_s determined by the formula 13 and the preset i_s and the subframe:

I_s=floor(UE_ID/N)mod Ns Equation 13

In the above formula 13, UE_ID represents the identifier of the terminal device, N represents a non-negative integer, and Ns represents the number of offsets of the starting subframe in the information of the starting subframe of the search space of the PDCCH.

The method for determining, by the first device, the subframe in which the paging occasion is located is the same as the method for determining the subframe in which the first device determines the paging occasion in S405, and the method for determining, by the first device, the subframe in which the paging opportunity is located in S305. .

It should be noted that, in the paging message transmission method described in the foregoing embodiment, the first device is used as the execution subject, but the execution body of the method described in the foregoing embodiment may also be the second device. Therefore, the embodiment of the present invention further provides another paging message transmission method, in which the second device is the execution subject, and the second device performs the method described in the foregoing embodiment. In the paging message transmission method in which the first device is the execution subject and the paging message transmission method in which the second device is the execution subject, the first device and the second device determine the paging occasion in the same manner, and in the seek The paging message transmission is performed on the call timing, and the first device and the second device are respectively the sending end and the receiving end or the receiving end and the sending end of the paging message transmission, that is, the first device and the second device both perform the above Similar operations of the method described in the embodiment can acquire the same paging occasion and perform paging message transmission. In order to save space, we will not repeat them here.

In a paging message transmission method provided in Embodiment 1, the period of the PDCCH search space for paging, the information of the start frame of the PDCCH search space for paging, and the information of the starting subframe are added to In the process of determining the paging occasion for transmitting the paging message, to adapt to the NB-IoT after the physical layer change. The base station and the terminal device use the technical solution provided in this embodiment to determine the same paging occasion. The base station sends a paging message to the terminal device at the determined paging occasion, and the terminal device receives the homing sent by the base station at the determined paging occasion. Call the message. The terminal device monitors the PDCCH in a idle state by using a discontinuous reception message to receive a paging message sent by the base station, thereby achieving the effect of saving power consumption of the terminal device.

Embodiment 2

The embodiment of the present invention further provides a first device, where the first device is configured to perform a paging message transmission method provided by Embodiment 1, and the first device may adopt the method shown in FIG. 2 to FIG. As shown, the first device 600 includes a processing unit 601 and a transceiver unit 602.

The processing unit 601 is configured to acquire the first period, the first information, and the identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, where the first information includes information about a start frame of the PDCCH search space. The information of the start subframe, where the PDCCH search space is used by the terminal device to monitor the PDCCH receiving the paging message sent by the base station in the PDCCH search space;

The processing unit 601 is configured to determine a paging occasion according to the first period, the first information, and the identifier of the terminal device;

The transceiver unit 602 is configured to perform paging message transmission with the second device on the paging occasion determined by the processing unit 601.

When the first device 600 is a base station, the second device is a terminal device, and when the first device 600 is a terminal device, the second device is a base station.

Optionally, the processing unit 601 is specifically configured to:

Determining, in the second period, a frame in which the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information;

In the frame in which the paging occasion is located, the subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information.

Optionally, the processing unit 601 determines, according to the first period, the identifier of the terminal device, and the information about the start frame of the search space of the PDCCH, the frame where the paging occasion is located, where the processing unit 601 is specifically configured to:

Determine the frame where the paging opportunity is based on the following formula:

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging _occasions, CSS _period represents a first period, UE_ID represents the identity of the terminal device, N represents a non-negative integer, frame_offset start frame indicates offset information of the PDCCH in the search space start frame Quantity, Ns=1024/CSS_period.

Optionally, the processing unit 601 is further configured to:

Obtaining a second period, where the second period is a period in which the terminal device discontinuously receives the paging message;

The processing unit 601 is specifically configured to:

The paging occasion is determined according to the first period, the first information, the identifier of the terminal device, and the second period.

Optionally, when the processing unit 601 determines the paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period, the processing unit 601 is specifically configured to:

When the second period is greater than the first set value, determining, according to the identifier of the terminal device and the second period, determining at least one superframe where the paging occasion is located;

Do the following for each superframe in at least one superframe:

Determining an end frame of the paging window in the superframe according to the start frame of the paging window and the length of the paging window;

Determining, between the start frame of the paging window and the end frame of the paging window, the frame where the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information. ;

Optionally, the processing unit 601 determines, according to the first period, the identifier of the terminal device, and the information about the start frame of the search space of the PDCCH in the first information, when the start frame of the paging window in the superframe is determined, specifically:

Determine the starting frame of the paging window according to the following formula:

PW_start=CCS _period *i _eDRX +frame_offset

Wherein, PW_start indicates a start frame of the paging window, CCS _period indicates a first period, and frame_offset indicates an offset of a start frame in information of a start frame of a search space of the PDCCH, i _eDRX = UE_ID mod (1024/CCS _period) ), UE_ID represents the identity of the terminal device.

Optionally, when the processing unit 601 determines the frame_offset, the method specifically includes:

When the information of the start frame of the search space of the PDCCH includes the offset of the plurality of start frames, i_s is determined according to the formula i_s=floor(UE_ID/N) mod Ns; wherein the UE_ID represents the terminal device The identifier, N represents a non-negative integer, and Ns represents the number of offsets of the start frame in the information of the start frame of the search space of the PDCCH;

The frame_offset is determined according to the determined i_s and the correspondence between the preset i_s and the frame_offset.

Optionally, the processing unit 601 determines, according to the first period, the identifier of the terminal device, and the information about the start frame of the search space of the PDCCH in the first information, when the frame where the paging occasion is located is specifically used to:

SFN=CSS _{_period} *(floor(UE_ID/N)mod Ns

Wherein, SFN denotes a frame where the paging _occasions, CSS _period represents a first period, UE_ID represents the identity of the terminal device, N is a nonnegative integer, Ns represents a start frame offset information of the PDCCH in the search space start frame The number of quantities.

When the second period is greater than the first set value, and the first period is less than or equal to the second set value, determining, according to the identifier of the terminal device and the second period, determining at least one superframe where the paging occasion is located;

Do the following for each superframe in at least one superframe:

Determining a starting frame of the paging window in the superframe according to the second set value and the identifier of the terminal device;

Between the start frame of the paging window and the end frame of the paging window, the paging window is divided into at least one window whose length is a second set value, in each window of at least one window, according to the first period And determining, by the identifier of the terminal device, the information of the start frame of the PDCCH search space in the first information, determining a frame where the paging occasion is located;

Optionally, the processing unit 601 determines, according to the identifier of the terminal device and the second period, when at least one superframe where the paging occasion is located, specifically used;

Determine at least one superframe where the paging opportunity is located according to the following formula:

H-SFN mod T _{eDRX, H} = (UE_ID mod T _{eDRX, H} )

Optionally, the processing unit 601 determines, according to the second set value and the identifier of the terminal device, when the start frame of the paging window in the superframe is used, specifically:

SFN=A*[floor(UE_ID/N)mod 4]

Where SFN represents the start frame of the paging window, A represents the second set value, UE_ID represents the identity of the terminal device, and N represents a non-negative integer.

Optionally, when the processing unit 601 determines the end frame of the paging window in the super frame according to the start frame of the paging window and the length of the paging window, the processing unit 601 is specifically configured to:

PW_end=(PW_start+L*100-1)mod 1024

Where PW_end represents the end frame of the paging window, PW_start represents the start frame of the paging window, and L represents the length of the paging window.

Optionally, the processing unit 601 is specifically configured to determine, according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information, where the paging occasion is located;

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging _occasions, CSS _period represents a first period, UE_ID represents the identity of the terminal device, N represents a non-negative integer, frame_offset PDCCH search space information indicating the start offset of frame start frame Ns = (max CSS_period) / CSS_period, where max CSS_period represents the period of the largest PDCCH search space supported by the system.

Optionally, the processing unit 601 determines, according to the information about the starting subframe of the PDCCH search space in the first information, the subframe in which the paging occasion is located, where the processing unit 601 is specifically configured to:

If the information about the start subframe of the PDCCH search space includes only the offset of the start subframe, the offset of the start subframe is used as the subframe where the paging occasion is located;

If the information of the starting subframe of the PDCCH search space includes the offset of the multiple starting subframes, i_s is determined according to the formula i_s=floor(UE_ID/N) mod Ns, and according to the determined i_s and the preset i_s The corresponding relationship with the subframe determines the subframe in which the paging occasion is located:

It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The embodiment of the present invention further provides a first device, where the first device is configured to perform a method for transmitting a paging message according to the first embodiment, where the first device may adopt the method shown in FIG. 2 to FIG. The same device as the first device shown in FIG. Referring to FIG. 7, the first device 700 includes a processor 701, a transceiver 702, a bus 703, and a memory 704, where:

The processor 701, the transceiver 702, and the memory 704 are connected to each other through a bus 703. The bus 703 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, in Figure 7 It is represented by only one thick line, but does not mean that there is only one bus or one type of bus.

The processor 701 in FIG. 7 corresponds to the processing unit 601 in FIG. 6. The transceiver 702 in FIG. 7 corresponds to the transceiver unit 602 in FIG. 6. The transceiver 702 refers to an antenna having a receiving and transmitting function. The first device 700 also includes a memory 704 for storing programs and the like. In particular, the program can include program code, the program code including computer operating instructions. The memory 704 may include a random access memory (RAM), and may also include a non-volatile memory such as at least one disk storage. The processor 701 executes an application stored in the memory 704 to implement the paging message transmission method as described above.

Embodiment 3

The embodiment of the present invention further provides a second device, which is used to perform a paging message transmission method provided in Embodiment 1, and the second device may adopt the method shown in FIG. 2 to FIG. As shown, the second device 800 includes a processing unit 801 and a transceiver unit 802.

The processing unit 801 is configured to acquire a first period, a first information, and an identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, where the first information includes information about a start frame of the PDCCH search space. The information of the start subframe, where the PDCCH search space is used by the terminal device to monitor the PDCCH receiving the paging message sent by the base station in the PDCCH search space;

The processing unit 801 is configured to determine a paging occasion according to the first period, the first information, and the identifier of the terminal device;

The transceiver unit 802 is configured to perform paging message transmission with the first device on the paging occasion determined by the processing unit 801.

When the second device 800 is a base station, the first device is a terminal device, and when the second device 800 is a terminal device, the first device is a base station.

Optionally, the processing unit 801 is specifically configured to:

Determining, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, the frame where the paging occasion is located;

Optionally, the processing unit 801 determines, according to the first period, the identifier of the terminal device, and the information about the start frame of the search space of the PDCCH, when the frame where the paging occasion is located is specifically used to:

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

Optionally, the processing unit 801 is further configured to:

The processing unit 801 is specifically configured to:

Optionally, when the processing unit 801 determines the paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period, the processing unit 801 is specifically configured to:

Do the following for each superframe in at least one superframe:

Optionally, the processing unit 801 determines, according to the first period, the identifier of the terminal device, and the information about the start frame of the search space of the PDCCH in the first information, when the start frame of the paging window in the superframe is determined, specifically:

PW_start=CCS _period *i _eDRX +frame_offset

Optionally, the processing unit 801 determines the frame_offset, and specifically includes:

When the information of the start frame of the search space of the PDCCH includes the offset of the plurality of start frames, i_s is determined according to the formula i_s=floor(UE_ID/N) mod Ns; wherein, UE_ID represents the identifier of the terminal device, and N represents a non-negative integer, where Ns represents the number of offsets of the start frame in the information of the start frame of the search space of the PDCCH;

Optionally, the processing unit 801 determines, according to the first period, the identifier of the terminal device, and the information about the start frame of the search space of the PDCCH in the first information, when the frame where the paging occasion is located is specifically used to:

SFN=CSS _{_period} *(floor(UE_ID/N)mod Ns

Do the following for each superframe in at least one superframe:

The paging window is divided into two lengths between the start frame of the paging window and the end frame of the paging window. At least one window of the set value, in each window of the at least one window, determining a frame in which the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information;

Optionally, the processing unit 801 is specifically configured to determine, according to the identifier of the terminal device and the second period, at least one superframe where the paging occasion is located;

H-SFN mod T _{eDRX, H} = (UE_ID mod T _{eDRX, H} )

Optionally, the processing unit 801 determines, according to the second set value and the identifier of the terminal device, when the start frame of the paging window in the superframe is used, specifically:

SFN=A*[floor(UE_ID/N)mod 4]

Optionally, when the processing unit 801 determines the end frame of the paging window in the super frame according to the start frame of the paging window and the length of the paging window, the processing unit 801 is specifically configured to:

PW_end=(PW_start+L*100-1)mod 1024

Optionally, the processing unit 801 is specifically configured to determine, according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information, where the paging occasion is located;

SFN=CSS _{_period} *(floor(UE_ID/N) mod Ns)+frame_offset

Optionally, the processing unit 801 determines, according to the information about the starting subframe of the PDCCH search space in the first information, the subframe in which the paging occasion is located, where the processing unit 801 is specifically configured to:

It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.

The embodiment of the present invention further provides a second device, where the second device is configured to perform a paging message transmission method provided by Embodiment 1, and the second device may adopt the method shown in FIG. 2 to FIG. The second device shown in Fig. 8 is the same device. Referring to FIG. 9, the second device 900 includes a processor 901, a transceiver 902, a bus 903, and a memory 904, where:

The processor 901, the transceiver 902, and the memory 904 are connected to each other through a bus 903; the bus 903 may be a PCI bus or an EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus.

The processor 901 in FIG. 9 corresponds to the processing unit 801 in FIG. 8. The transceiver 902 in FIG. 9 corresponds to the transceiver unit 802 in FIG. 8. The transceiver 902 refers to an antenna having a receiving and transmitting function. The second device 900 also includes a memory 904 for storing programs and the like. In particular, the program can include program code, the program code including computer operating instructions. Memory 904 may contain RAM or may also A non-volatile memory is included, such as at least one disk storage. The processor 901 executes an application stored in the memory 904 to implement the paging message transmission method as described above.

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 may take the form of an entirely hardware embodiment, an entirely 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, CD-ROM, 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.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

A paging message transmission method, comprising:

The first device acquires the first period, the first information, and the identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, and the first information includes information about a start frame of the PDCCH search space. And the information of the start subframe, where the PDCCH search space is used by the terminal device to monitor the PDCCH receiving the paging message sent by the base station in the PDCCH search space;

Determining, by the first device, a paging occasion according to the first period, the first information, and an identifier of the terminal device;

At the paging occasion, paging message transmission is performed between the first device and the second device.
The method according to claim 1, wherein the determining, by the first device, the paging occasion according to the first period, the first information, and the identifier of the terminal device, includes:

Determining, by the first device, the frame where the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information;

In the frame in which the paging occasion is located, the first device determines, according to information about a starting subframe of the PDCCH search space in the first information, a subframe in which the paging occasion is located.
The method according to claim 2, wherein the first device determines the paging according to the first period, the identifier of the terminal device, and the information of a start frame of a search space of the PDCCH. The frame where the timing is located, including:

The first device determines a frame in which the paging occasion is located according to the following formula:

SFN=CSS _period *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the terminal device identification, N denotes the non-negative integer, frame_offset search space indicates the starting frame of the PDCCH The offset of the starting frame in the message, Ns=1024/CSS_period.
The method of claim 1 wherein the method further comprises:

The first device acquires a second period, where the second period is a period in which the terminal device discontinuously receives a paging message;

Determining, by the first device, the paging occasion according to the first period, the first information, and the identifier of the terminal device, including:

The first device determines a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period.
The method according to claim 4, wherein, when the second period is greater than the first set value, the first device is configured according to the first period, the first information, and the terminal device The identification and the second period determine a paging occasion, including:

Determining, by the first device, at least one superframe where the paging occasion is located according to the identifier of the terminal device and the second period;

Performing the following operations for each superframe in the at least one superframe:

Determining, by the first device, the start of the paging window in the superframe according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information frame;

Determining, by the first device, an end frame of the paging window in the superframe according to a start frame of the paging window and a length of the paging window;

Between the start frame of the paging window and the end frame of the paging window, the first device according to the first period, the identifier of the terminal device, and the PDCCH in the first information Information of a starting frame of the search space, determining a frame in which the paging opportunity is located;

In the frame in which the paging occasion is located, the first device determines, according to information about a starting subframe of the PDCCH search space in the first information, a subframe in which the paging occasion is located.
The method according to claim 5, wherein the first device is configured to: according to the first period, an identifier of the terminal device, and information about a start frame of a search space of the PDCCH in the first information. Determining a starting frame of the paging window in the superframe, including:

The first device determines a starting frame of the paging window according to the following formula:

PW_start=CCS period *i eDRX +frame_offset

Wherein, PW_start indicates a start frame of the paging window, CCS period indicates the first period, and frame_offset indicates an offset of a start frame in information of a start frame of a search space of the PDCCH, i eDRX =UE_ID Mod (1024/CCS period ), UE_ID indicates the identity of the terminal device.
The method according to claim 6, wherein when the information of the start frame of the search space of the PDCCH includes the offset of the plurality of start frames, the determining, by the first device, the frame_offset includes:

The first device determines i_s according to the formula i_s=floor(UE_ID/N) mod Ns; wherein, the UE_ID represents the identifier of the terminal device, N represents a non-negative integer, and Ns represents the start frame of the search space of the PDCCH. The number of offsets of the starting frame in the message;

The first device determines the frame_offset according to the determined i_s and a preset relationship between i_s and frame_offset.
The method according to claim 5, wherein the first device is configured to: according to the first period, an identifier of the terminal device, and information about a start frame of a search space of the PDCCH in the first information. Determining a frame in which the paging opportunity is located, including:

The first device determines a frame in which the paging occasion is located according to the following formula:

SFN=CSS _period *(floor(UE_ID/N)mod Ns

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N is a nonnegative integer, Ns represents the start frame of the search space of the PDCCH The number of offsets of the starting frame in the message.
The method according to claim 4, wherein when said second period is greater than a first set value and said first period is less than or equal to a second set value, said first device is The first period, the first information, the identifier of the terminal device, and the second period determine a paging occasion, including:

Determining, by the first device, at least one superframe where the paging occasion is located according to the identifier of the terminal device and the second period;

Performing the following operations for each superframe in the at least one superframe:

Determining, by the first device, a start frame of a paging window in the superframe according to the second set value and an identifier of the terminal device;

Determining, by the first device, according to a start frame of the paging window and a length of the paging window An end frame of the paging window in the superframe;

Between the start frame of the paging window and the end frame of the paging window, the first device divides the paging window into at least one window whose length is the second set value, Determining, at each window of the at least one window, the paging occasion according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information Frame

In the frame in which the paging occasion is located, the first device determines, according to information about a starting subframe of the PDCCH search space in the first information, a subframe in which the paging occasion is located.
The method according to claim 5 or 9, wherein the first device determines at least one superframe in which the paging occasion is located according to the identifier of the terminal device and the second period, including:

The first device determines at least one superframe where the paging occasion is located according to the following formula:

H-SFN mod T eDRX, H = (UE_ID mod T eDRX, H )

The H_SFN indicates at least one superframe where the paging occasion is located, T eDRX, H indicates the second period, and the UE_ID indicates the identifier of the terminal device.
The method according to claim 9, wherein the first device determines a start frame of the paging window in the superframe according to the second set value and an identifier of the terminal device, include:

The first device determines a starting frame of the paging window according to the following formula:

SFN=A*[floor(UE_ID/N)mod 4]

Wherein, SFN represents a start frame of the paging window, A represents the second set value, UE_ID represents an identifier of the terminal device, and N represents a non-negative integer.
The method according to claim 5 or 9, wherein the first device determines the paging window in the superframe according to a start frame of the paging window and a length of the paging window. End frame, including:

The first device determines an end frame of the paging window according to the following formula:

PW_end=(PW_start+L*100-1)mod 1024

Wherein PW_end represents the end frame of the paging window, and PW_start represents the start of the paging window. The start frame, L represents the length of the paging window.
The method according to claim 9, wherein the first device is configured to: according to the first period, an identifier of the terminal device, and information about a start frame of the PDCCH search space in the first information, Determining a frame in which the paging opportunity is located, including:

The first device determines a frame in which the paging occasion is located according to the following formula:

SFN=CSS _period *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N represents a non-negative integer, frame_offset start frame information indicating the PDCCH search space The offset of the start frame, Ns = (max CSS_period) / CSS_period, where max CSS_period represents the period of the largest PDCCH search space supported by the system.
The method according to claim 2, 5 or 9, wherein the first device determines, according to the information of the starting subframe of the PDCCH search space in the first information, where the paging occasion is located. Subframes, including:

If the information about the start subframe of the PDCCH search space includes only an offset of the start subframe, the first device uses the offset of the start subframe as the paging occasion. Subframe

If the information of the start subframe of the PDCCH search space includes an offset of multiple start subframes, the first device determines i_s according to the formula i_s=floor(UE_ID/N) mod Ns, and determines according to The corresponding relationship between the i_s and the preset i_s and the subframe determines the subframe in which the paging occasion is located:

The UE_ID indicates the identifier of the terminal device, N indicates a non-negative integer, and Ns indicates the number of offsets of the starting subframe in the information of the starting subframe of the search space of the PDCCH.
The first device is characterized by comprising:

a processing unit, configured to acquire a first period, a first information, and an identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, where the first information includes a start frame of the PDCCH search space And the information of the start subframe, where the PDCCH search space is used by the terminal device to monitor the PDCCH received by the base station in the PDCCH search space. interest;

The processing unit is configured to determine a paging occasion according to the first period, the first information, and an identifier of the terminal device;

And a transceiver unit, configured to perform paging message transmission with the second device on the paging occasion determined by the processing unit.
The first device according to claim 15, wherein the processing unit is specifically configured to:

Determining, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, a frame where the paging occasion is located;

The subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information, in the frame in which the paging occasion is located.
The first device according to claim 16, wherein the processing unit determines the homing according to the first period, the identifier of the terminal device, and the start frame information of the search space of the PDCCH. When calling the frame where the time is, it is used to:

The frame in which the paging opportunity is located is determined according to the following formula:

SFN=CSS _period *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the terminal device identification, N denotes the non-negative integer, frame_offset search space indicates the starting frame of the PDCCH The offset of the starting frame in the message, Ns=1024/CSS_period.
The first device according to claim 15, wherein the processing unit is further configured to:

Obtaining a second period, where the second period is a period in which the terminal device discontinuously receives a paging message;

The processing unit is specifically configured to:

Determining a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period.
The first device according to claim 18, wherein the processing unit determines the paging according to the first period, the first information, the identifier of the terminal device, and the second period When it is time, it is specifically used to:

Determining, according to the identifier of the terminal device and the second period, at least one superframe where the paging occasion is located, when the second period is greater than the first set value;

Performing the following operations for each superframe in the at least one superframe:

Determining, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, a start frame of the paging window in the superframe;

Determining an end frame of the paging window in the superframe according to a start frame of the paging window and a length of the paging window;

Between the start frame of the paging window and the end frame of the paging window, according to the first period, the identifier of the terminal device, and the search space of the PDCCH in the first information Information of the start frame, determining a frame in which the paging opportunity is located;

The subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information, in the frame in which the paging occasion is located.
The first device according to claim 19, wherein the processing unit is configured according to the first period, an identifier of the terminal device, and a start frame of a search space of the PDCCH in the first information. Information, when determining a starting frame of a paging window in the superframe, specifically used to:

The starting frame of the paging window is determined according to the following formula:

PW_start=CCS period *i eDRX +frame_offset

Wherein, PW_start indicates a start frame of the paging window, CCS period indicates the first period, and frame_offset indicates an offset of a start frame in information of a start frame of a search space of the PDCCH, i eDRX =UE_ID Mod (1024/CCS period ), UE_ID indicates the identity of the terminal device.
The first device according to claim 20, wherein when the processing unit determines the frame_offset, the method specifically includes:

When the information of the start frame of the search space of the PDCCH includes an offset of a plurality of start frames, determining i_s according to the formula i_s=floor(UE_ID/N) mod Ns; wherein, the UE_ID indicates the terminal device The identifier, N represents a non-negative integer, and Ns represents the number of offsets of the start frame in the information of the start frame of the search space of the PDCCH;

The frame_offset is determined according to the determined i_s and a correspondence between the preset i_s and the frame_offset.
The first device according to claim 19, wherein the processing unit is configured according to the first period, an identifier of the terminal device, and a start frame of a search space of the PDCCH in the first information. Information, when determining the frame in which the paging opportunity is located, specifically for:

The frame in which the paging opportunity is located is determined according to the following formula:

SFN=CSS _period *(floor(UE_ID/N)mod Ns

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N is a nonnegative integer, Ns represents the start frame of the search space of the PDCCH The number of offsets of the starting frame in the message.
The first device according to claim 18, wherein the processing unit determines a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period, Specifically used for:

When the second period is greater than the first set value, and the first period is less than or equal to the second set value, determining, according to the identifier of the terminal device and the second period, that the paging occasion is located At least one superframe;

Performing the following operations for each superframe in the at least one superframe:

Determining, according to the second set value and the identifier of the terminal device, a start frame of a paging window in the superframe;

Determining an end frame of the paging window in the superframe according to a start frame of the paging window and a length of the paging window;

Between the start frame of the paging window and the end frame of the paging window, dividing the paging window into at least one window whose length is the second set value, in the at least one window Determining, in each window, a frame in which the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information;

The subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information, in the frame in which the paging occasion is located.
The first device according to claim 19 or 23, wherein the processing unit determines, according to the identifier of the terminal device and the second period, when at least one superframe in which the paging occasion is located, Used for

Determining at least one superframe in which the paging opportunity is located according to the following formula:

H-SFN mod T eDRX, H = (UE_ID mod T eDRX, H )

The H_SFN indicates at least one superframe where the paging occasion is located, T eDRX, H indicates the second period, and the UE_ID indicates the identifier of the terminal device.
The first device according to claim 23, wherein the processing unit determines a start frame of the paging window in the superframe according to the second set value and an identifier of the terminal device When specifically used to:

The starting frame of the paging window is determined according to the following formula:

SFN=A*[floor(UE_ID/N)mod 4]

Wherein, SFN represents a start frame of the paging window, A represents the second set value, UE_ID represents an identifier of the terminal device, and N represents a non-negative integer.
The first device according to claim 19 or 23, wherein the processing unit determines the paging in the superframe according to a start frame of the paging window and a length of the paging window When the end frame of the window is used, it is specifically used to:

The end frame of the paging window is determined according to the following formula:

PW_end=(PW_start+L*100-1)mod 1024

Wherein PW_end represents the end frame of the paging window, PW_start represents the start frame of the paging window, and L represents the length of the paging window.
The first device according to claim 23, wherein the processing unit is configured to: according to the first period, an identifier of the terminal device, and information about a start frame of the PDCCH search space in the first information. When determining the frame in which the paging occasion is located, specifically used;

The frame in which the paging opportunity is located is determined according to the following formula:

SFN=CSS _period *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N represents a non-negative integer, frame_offset start frame information indicating the PDCCH search space The offset of the start frame, Ns = (max CSS_period) / CSS_period, where max CSS_period represents the period of the largest PDCCH search space supported by the system.
The first device according to claim 16, 19 or 23, wherein the processing unit determines, according to information about a starting subframe of the PDCCH search space in the first information, where the paging occasion is located When the sub-frame is used, specifically:

And if the information about the start subframe of the PDCCH search space includes only the offset of the start subframe, the offset of the start subframe is used as the subframe where the paging occasion is located;

If the information of the start subframe of the PDCCH search space includes offsets of multiple start subframes, determine i_s according to the formula i_s=floor(UE_ID/N) mod Ns, and preset according to the determined i_s and The corresponding relationship between the i_s and the subframe determines the subframe in which the paging occasion is located:

The UE_ID indicates the identifier of the terminal device, N indicates a non-negative integer, and Ns indicates the number of offsets of the starting subframe in the information of the starting subframe of the search space of the PDCCH.
The second device is characterized by comprising:

a processing unit, configured to acquire a first period, a first information, and an identifier of the terminal device, where the first period is a period of a physical downlink control channel PDCCH search space, where the first information includes a start frame of the PDCCH search space And the information of the start subframe, where the PDCCH search space is used by the terminal device to monitor the PDCCH receiving the paging message sent by the base station in the PDCCH search space;

The processing unit is configured to determine a paging occasion according to the first period, the first information, and an identifier of the terminal device;

And a transceiver unit, configured to perform paging message transmission with the first device on the paging occasion determined by the processing unit.
The second device according to claim 29, wherein the processing unit is specifically configured to:

Determining, according to the first period, the identifier of the terminal device, and the PDCCH in the first information Information of a starting frame of the search space, determining a frame in which the paging opportunity is located;

The subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information, in the frame in which the paging occasion is located.
The second device according to claim 30, wherein the processing unit determines the homing according to the first period, the identifier of the terminal device, and the information of a start frame of a search space of the PDCCH. When calling the frame where the time is, it is used to:

The frame in which the paging opportunity is located is determined according to the following formula:

SFN=CSS _period *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the terminal device identification, N denotes the non-negative integer, frame_offset search space indicates the starting frame of the PDCCH The offset of the starting frame in the message, Ns=1024/CSS_period.
The second device of claim 29, wherein the processing unit is further configured to:

Obtaining a second period, where the second period is a period in which the terminal device discontinuously receives a paging message;

The processing unit is specifically configured to:

Determining a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period.
The second device according to claim 32, wherein the processing unit determines a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period, Specifically used for:

Determining, according to the identifier of the terminal device and the second period, at least one superframe where the paging occasion is located, when the second period is greater than the first set value;

Performing the following operations for each superframe in the at least one superframe:

Determining, according to the first period, the identifier of the terminal device, and the information of the start frame of the search space of the PDCCH in the first information, a start frame of the paging window in the superframe;

Determining an end frame of the paging window in the superframe according to a start frame of the paging window and a length of the paging window;

Between the start frame of the paging window and the end frame of the paging window, according to the first period, the identifier of the terminal device, and the search space of the PDCCH in the first information Information of the start frame, determining a frame in which the paging opportunity is located;

The subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information, in the frame in which the paging occasion is located.
The second device according to claim 33, wherein the processing unit is configured according to the first period, an identifier of the terminal device, and a start frame of a search space of the PDCCH in the first information. Information, when determining a starting frame of a paging window in the superframe, specifically used to:

The starting frame of the paging window is determined according to the following formula:

PW_start=CCS period *i eDRX +frame_offset

Wherein, PW_start indicates a start frame of the paging window, CCS period indicates the first period, and frame_offset indicates an offset of a start frame in information of a start frame of a search space of the PDCCH, i eDRX =UE_ID Mod (1024/CCS period ), UE_ID indicates the identity of the terminal device.
The second device according to claim 34, wherein the processing unit determines the frame_offset, specifically:

When the information of the start frame of the search space of the PDCCH includes an offset of a plurality of start frames, determining i_s according to the formula i_s=floor(UE_ID/N) mod Ns; wherein, the UE_ID indicates the terminal device The identifier, N represents a non-negative integer, and Ns represents the number of offsets of the start frame in the information of the start frame of the search space of the PDCCH;

The frame_offset is determined according to the determined i_s and a correspondence between the preset i_s and the frame_offset.
The second device according to claim 33, wherein the processing unit is configured according to the first period, an identifier of the terminal device, and a start frame of a search space of the PDCCH in the first information. Information, when determining the frame in which the paging opportunity is located, specifically for:

The frame in which the paging opportunity is located is determined according to the following formula:

SFN=CSS _period *(floor(UE_ID/N)mod Ns

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N is a nonnegative integer, Ns represents the start frame of the search space of the PDCCH The number of offsets of the starting frame in the message.
The second device according to claim 32, wherein the processing unit determines a paging occasion according to the first period, the first information, the identifier of the terminal device, and the second period, Specifically used for:

When the second period is greater than the first set value, and the first period is less than or equal to the second set value, determining, according to the identifier of the terminal device and the second period, that the paging occasion is located At least one superframe;

Performing the following operations for each superframe in the at least one superframe:

Determining, according to the second set value and the identifier of the terminal device, a start frame of a paging window in the superframe;

Determining an end frame of the paging window in the superframe according to a start frame of the paging window and a length of the paging window;

Between the start frame of the paging window and the end frame of the paging window, dividing the paging window into at least one window whose length is the second set value, in the at least one window Determining, in each window, a frame in which the paging occasion is located according to the first period, the identifier of the terminal device, and the information of the start frame of the PDCCH search space in the first information;

The subframe in which the paging occasion is located is determined according to the information of the starting subframe of the PDCCH search space in the first information, in the frame in which the paging occasion is located.
The second device according to claim 33 or 37, wherein the processing unit determines, according to the identifier of the terminal device and the second period, when at least one superframe in which the paging occasion is located, Used for

Determining at least one superframe in which the paging opportunity is located according to the following formula:

H-SFN mod T eDRX, H = (UE_ID mod T eDRX, H )

The H_SFN indicates at least one superframe where the paging occasion is located, T eDRX, H indicates the second period, and the UE_ID indicates the identifier of the terminal device.
A second device according to claim 37, wherein said processing unit is Determining, when determining the start frame of the paging window in the super frame, the second setting value and the identifier of the terminal device, specifically:

The starting frame of the paging window is determined according to the following formula:

SFN=A*[floor(UE_ID/N)mod 4]

Wherein, SFN represents a start frame of the paging window, A represents the second set value, UE_ID represents an identifier of the terminal device, and N represents a non-negative integer.
The second device according to claim 33 or 37, wherein said processing unit determines said paging in said superframe according to a start frame of said paging window and a length of said paging window When the end frame of the window is used, it is specifically used to:

The end frame of the paging window is determined according to the following formula:

PW_end=(PW_start+L*100-1)mod 1024

Wherein PW_end represents the end frame of the paging window, PW_start represents the start frame of the paging window, and L represents the length of the paging window.
The second device according to claim 37, wherein the processing unit is configured to: according to the first period, an identifier of the terminal device, and information about a start frame of the PDCCH search space in the first information. When determining the frame in which the paging occasion is located, specifically used;

The frame in which the paging opportunity is located is determined according to the following formula:

SFN=CSS _period *(floor(UE_ID/N) mod Ns)+frame_offset

Wherein, SFN denotes a frame where the paging occasions, CSS _period represents the first period, UE_ID represents the identifier of the terminal device, N represents a non-negative integer, frame_offset start frame information indicating the PDCCH search space The offset of the start frame, Ns = (max CSS_period) / CSS_period, where max CSS_period represents the period of the largest PDCCH search space supported by the system.
The second device according to claim 30, 33 or 37, wherein the processing unit determines, according to information about a starting subframe of the PDCCH search space in the first information, where the paging occasion is located When the sub-frame is used, specifically:

If the information of the starting subframe of the PDCCH search space includes only one partial offset of the starting subframe Transmitting, the offset of the starting subframe is used as a subframe in which the paging occasion is located;

If the information of the start subframe of the PDCCH search space includes offsets of multiple start subframes, determine i_s according to the formula i_s=floor(UE_ID/N) mod Ns, and preset according to the determined i_s and The corresponding relationship between the i_s and the subframe determines the subframe in which the paging occasion is located:

The UE_ID indicates the identifier of the terminal device, N indicates a non-negative integer, and Ns indicates the number of offsets of the starting subframe in the information of the starting subframe of the search space of the PDCCH.