CN107027091B

CN107027091B - Message window determination method, device and system

Info

Publication number: CN107027091B
Application number: CN201610074897.1A
Authority: CN
Inventors: 刘旭; 艾建勋
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-02-02
Filing date: 2016-02-02
Publication date: 2020-08-11
Anticipated expiration: 2036-02-02
Also published as: CN107027091A; WO2017133463A1

Abstract

The invention provides a method, a device and a system for determining a message window. Wherein, the method comprises the following steps: the base station configures an offset value of the SI-window and/or configures an offset value and/or a length of the PO-window according to the position relationship between the system message window SI-window and the paging message window PO-window, wherein the PO-window consists of POs repeatedly sending paging messages between the POs at the paging occasions of two initially transmitted paging messages; and the base station sends the offset value of the SI-window and/or the offset value and/or the length of the PO-window to the user equipment UE. The invention solves the problem that the PO time repeatedly transmitted by the SI-window and the paging has conflict, and further avoids the conflict between the PO time repeatedly transmitted by the SI-window and the paging.

Description

Message window determination method, device and system

Technical Field

The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a system for determining a message window.

Background

The rapid development of mobile internet, internet of things, and other business applications has become a major driving force for the development of fifth generation mobile communication technology (5G). They have an urgent need for 5G with access rates comparable to that of optical fibers, connectivity capabilities of billions of devices, a perfect real-time experience, and wireless broadband access capabilities anywhere and anytime. In addition, important indexes such as energy consumption efficiency, spectral efficiency and peak rate also need to be comprehensively considered in the design of the 5G system. China has established the IMT-2020(5G) push group in 2013 to drive the development of 5G technology. It is expected that a 5G vision, critical capacity requirements, and spectrum planning will develop in 2015, according to the international global situation; the 5G standardization work will then be initiated and is scheduled to begin business after 2020. In terms of international standards, the technical standards of the long term evolution Advanced (LTE-Advanced) are mainly set by the international organization for standardization of the third generation Partnership Project (3 GPP). The industry has preliminarily held that 5G-oriented standard research work will be initiated at stage 3GPP R14 (expected in 2016).

In future mobile network applications, the traffic demand, the number of User Equipments (UEs) and the class of UEs will all show an explosive growth trend. As one of the important scenarios and technical means of 5G, machine to machine Communication (MTC) is receiving increasing attention. In the MTC topic, a research sub-topic of Narrowband Internet of Things (NB-IoT for short) is proposed for the characteristics of low-cost and low-throughput type user equipment: namely, the 200kHZ band is utilized to provide low throughput wireless communication services for NB-IoT low-cost user equipment.

In a communication System, System Information Blocks (SIBs) having the same period are combined into a set of System messages (SIs), and the transmission periods of all the SIBs in an SI are the same, and the transmission periods of different SIs are different. In order to ensure that the user equipment can correctly receive the SIB message, a System Information window (SI-window) is defined, in which the SIB message may be repeatedly transmitted multiple times, and the user equipment needs to monitor the starting position of the SI-window until the SIB message in the SI is successfully received.

In an LTE system, if data is to be sent to a UE in an IDLE state (RRC-IDLE state), a Mobility Management Entity (MME) needs to send a Paging message to all base stations (enodebs) in a Tracking Area (TA) registered by the UE, and then the enodebs send the Paging message to notify the UE, fig. 1 is a schematic diagram of Paging message transmission according to the related art, as shown in fig. 1, the UE monitors the Paging message at a corresponding location according to a calculation formula of a Paging Occasion (PO), and after receiving the Paging message, the UE initiates an RRC connection request to receive downlink data. After the MME sends a paging message once, whether the paging is successfully received by the UE is judged according to whether the UE executes corresponding actions next, and if the paging is not successfully received by the UE, the user is continuously paged in the next paging cycle.

The inventor of the present invention found in the research process that in the NB-IOT system, in order to enable the ue to successfully receive a paging message, the base station repeatedly sends the paging message between two initial PO. Due to the narrow-band nature, the PO may be repeated hundreds of times, resulting in SI-window collision with the PO timing of paging repeat transmission.

Aiming at the problem that the PO opportunities repeatedly sent by the SI-window and the paging in the related technology have conflict, no effective solution is provided at present.

Disclosure of Invention

The invention provides a method, a device and a system for determining a message window, which are used for at least solving the problem that the PO time of repeated transmission of SI-window and paging in the related technology conflicts.

According to an aspect of the present invention, there is provided a message window determining method, including: a base station configures an offset value of a system message window (SI-window) and/or configures an offset value and/or a length of the PO-window according to a position relation between the SI-window and a paging message window (PO-window), wherein the PO-window consists of POs repeatedly sending paging messages between POs at paging occasions of two initially transmitted paging messages; and the base station sends the offset value of the SI-window and/or the offset value and/or the length of the PO-window to User Equipment (UE).

Optionally, the base station configuring the offset value of the PO-window according to the positional relationship between the SI-window and the PO-window comprises: the base station configures different bias values of the PO-window for each UE; or the base station configures different bias values of the PO-window for the UE with different coverage grades.

Optionally, the base station configuring the length of the PO-window according to the positional relationship between the SI-window and the PO-window comprises: the base station configures the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or the base station configures the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and the second preset window length.

Optionally, the sending, by the base station, the offset value and/or the length of the PO-window to the UE includes: the base station sends the offset value and/or the length of the PO-window to the UE through a first paging message sent repeatedly by dynamic scheduling or a second paging message sent repeatedly by semi-static scheduling; wherein the base station transmits the offset value and/or the length of the PO-window to the UE through the first paging message repeatedly transmitted by the dynamic scheduling comprises: the base station sends the offset value and/or the length of the PO-window to the UE in a physical downlink control channel carrying the scheduling information of the initially transmitted paging message PO; the base station sending the offset value and/or the length of the PO-window to the UE through the second paging message repeatedly sent by the semi-persistent scheduling comprises: the base station sends the offset value and/or the length of the PO-window to the UE through the second paging message and/or the system message.

Optionally, the base station configuring the bias value of the SI-window according to the positional relationship between the SI-window and the PO-window comprises: the base station configures the same or different or not completely same bias value of the SI-window for each SI; or the base station configures the bias value of the SI-window according to the coverage grade used by the SI.

Optionally, the sending, by the base station, the offset value of the SI-window to the UE includes: the base station sends the offset value of the SI-window to the UE in a System message Block 1SIB 1.

According to another aspect of the present invention, there is also provided a message window determining method, including: the method comprises the steps that User Equipment (UE) receives an offset value of a system message window (SI-window) sent by a base station and/or an offset value of a paging message window (PO-window), wherein the offset value of the SI-window and/or the offset value of the PO-window are configured according to the position relation between the SI-window and the PO-window by the base station, and the PO-window consists of POs for repeatedly sending paging messages between the POs at the paging occasions of two initially-transmitted paging messages; the UE determines the position of the SI-window and/or the PO-window according to the offset value of the SI-window and/or the offset value of the PO-window.

Optionally, before the UE determines the position of the PO-window according to the offset value of the PO-window, the method further comprises: and the UE acquires the length of the PO-window.

Optionally, the UE acquiring the length of the PO-window includes: the UE acquires the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or the UE acquires the length of the PO-window according to the mapping relation between the repetition times of the paging message sent to the UE by the base station and a second preset window length; or the UE receives the length of the PO-window sent by the base station; or the UE receives the repetition times of the paging message sent by the base station to the UE; and the UE acquires the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and a third preset window length.

Optionally, the receiving, by the UE, the PO-window offset value sent by the base station includes: the UE receives the offset value and/or the length of the PO-window in a first paging message which is dynamically scheduled and repeatedly sent by the base station or a second paging message which is semi-statically scheduled and repeatedly sent; wherein the receiving, by the UE, the offset value and/or the length of the PO-window in the first paging message dynamically scheduled and repeatedly transmitted by the base station comprises: the UE receives the offset value and/or the length of the PO-window carried in a physical downlink control channel carrying the scheduling information of the initially transmitted paging message PO; the UE receiving the offset value and/or the length of the PO-window in the second paging message repeatedly transmitted by the base station in the semi-persistent scheduling comprises: the UE receives the offset value and/or the length of the PO-window carried in the second paging message and/or the system message.

Optionally, the receiving, by the UE, the offset value of the SI-window sent by the base station includes: the UE receives an offset value of the SI-window configured by the base station for each SI, wherein the offset value of the SI-window of each SI is the same or different or not completely the same; or the UE receives the bias value of the SI-window configured by the base station according to the coverage grade used by the SI, wherein the bias value is sent by the base station.

Optionally, the receiving, by the UE, the offset value of the SI-window sent by the base station includes: the UE receives the offset value for the SI-window sent by the base station in a System message Block 1SIB 1.

Optionally, the UE determining the position of the SI-window according to the offset value of the SI-window comprises: the UE calculates the position of a preset initial frame of the SI-window according to a preset strategy; and the UE determines the position of the SI-window according to the preset initial frame position and the bias value of the SI-window.

According to another aspect of the present invention, there is also provided a message window determining apparatus, applied to a base station, including: a configuration module, configured to configure an offset value of a system message window SI-window and a paging message window PO-window according to a position relationship between the SI-window and the PO-window, and/or configure an offset value and/or a length of the PO-window, where the PO-window is composed of POs repeatedly sending paging messages between paging occasions POs of two initially transmitted paging messages; a sending module, configured to send the offset value of the SI-window, and/or the offset value and/or the length of the PO-window to a user equipment UE.

Optionally, the configuration module is configured to: configuring a different offset value of the PO-window for each UE; or configuring different bias values of the PO-window for the UE with different coverage grades.

Optionally, the configuration module is configured to: configuring the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or configuring the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and the second preset window length.

Optionally, the sending module is configured to: transmitting the offset value and/or the length of the PO-window to the UE through a first paging message which is repeatedly transmitted through dynamic scheduling or a second paging message which is repeatedly transmitted through semi-static scheduling; wherein the transmitting the offset value and/or the length of the PO-window to the UE through the first paging message repeatedly transmitted by the dynamic scheduling comprises: sending the offset value and/or the length of the PO-window to the UE in a physical downlink control channel carrying scheduling information of a primary transmission paging message PO; transmitting the offset value and/or the length of the PO-window to the UE through the second paging message repeatedly transmitted by the semi-persistent scheduling comprises: transmitting an offset value and/or a length of the PO-window to the UE through the second paging message and/or the system message.

Optionally, the configuration module is configured to: configuring the same or different or not identical bias value of the SI-window for each SI; or configuring a bias value of the SI-window according to a coverage level used by the SI.

Optionally, the sending module is configured to: sending the offset value of the SI-window to the UE in a System message Block 1SIB 1.

According to another aspect of the present invention, there is also provided a message window determining apparatus, applied to a user equipment UE, including: a receiving module, configured to receive an offset value of a system message window SI-window and/or an offset value of a paging message window PO-window sent by a base station, where the offset value of the SI-window and/or the offset value of the PO-window are configured by the base station according to a location relationship between the SI-window and the PO-window, and the PO-window is composed of POs repeatedly sending paging messages between paging occasions POs of two initially-transmitted paging messages; a determining module for determining the position of the SI-window and/or the PO-window according to the bias value of the SI-window and/or the bias value of the PO-window.

Optionally, the apparatus further comprises: and the acquisition module is used for acquiring the length of the PO-window.

Optionally, the obtaining module is configured to: acquiring the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or acquiring the length of the PO-window according to the mapping relation between the repetition times of the paging message sent to the UE by the base station and a second preset window length; or receiving the length of the PO-window sent by the base station; or receiving the repetition times of the paging message sent by the base station to the UE; and acquiring the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and a third preset window length.

Optionally, the receiving module is configured to: receiving the offset value and/or the length of the PO-window in a first paging message dynamically scheduled and repeatedly transmitted by the base station or a second paging message dynamically scheduled and repeatedly transmitted by the semi-static scheduling; wherein receiving the offset value and/or the length of the PO-window in the first paging message dynamically scheduled and repeatedly transmitted by the base station comprises: receiving the offset value and/or the length of the PO-window carried in a physical downlink control channel carrying the scheduling information of the initially transmitted paging message PO; receiving the offset value and/or the length of the PO-window in the second paging message repeatedly transmitted by the base station in the semi-persistent scheduling comprises: receiving an offset value and/or length of the PO-window carried in the second paging message and/or system message.

Optionally, the receiving module is configured to: receiving an offset value of the SI-window configured by the base station for each SI, wherein the offset value of the SI-window of each SI is the same or different or not completely the same; or receiving an offset value of the SI-window configured by the base station according to the coverage grade used by the SI, wherein the offset value is sent by the base station.

Optionally, the receiving module is configured to: receiving an offset value for the SI-window sent by the base station in a System message Block 1SIB 1.

Optionally, the determining module includes: the calculating unit is used for calculating the position of a preset initial frame of the SI-window according to a preset strategy; and the determining unit is used for determining the position of the SI-window according to the preset starting frame position and the bias value of the SI-window.

According to another aspect of the present invention, there is also provided a message window determination system, including: any of the above message window determining apparatus applied to a base station, and any of the above message window determining apparatus applied to a UE.

According to the invention, a base station is adopted to configure the offset value of the SI-window and/or the offset value and/or the length of the PO-window according to the position relationship between the system message window SI-window and the paging message window PO-window, wherein the PO-window consists of POs repeatedly sending paging messages between the POs at the paging occasions of two initially-transmitted paging messages; a base station transmits the bias value of the SI-window and/or the bias value and/or the length of the PO-window to a User Equipment (UE), the base station configures the bias value for the SI-window and the bias value and/or the length for the PO-window according to the position relation between the SI-window and the PO-window, so that the positions of the SI-window and the PO-window do not overlap, can avoid the mutual interference between the system message and the paging message sent by the base station, and send the configured bias value and the configured length to the UE after configuration, so that the UE can accurately receive the system message and the paging message at the position indicated by the base station, and the two will not interfere with each other, thus solving the problem of conflict between PO opportunities repeatedly sent by the SI-window and the paging, and further avoids the conflict between PO occasions repeatedly sent by the SI-window and the paging.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic diagram of paging message transmission according to the related art;

FIG. 2 is a flow chart of an alternative message window determination method according to an embodiment of the present invention;

FIG. 3 is a flow chart of an alternative message window determination method according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of a PO-window according to an alternative embodiment of the invention;

fig. 5 is a block diagram of a structure of a message window determining apparatus according to an embodiment of the present invention;

fig. 6 is a block diagram of another alternative message window determination apparatus according to an embodiment of the present invention;

fig. 7 is a block diagram of another alternative message window determination apparatus according to an embodiment of the present invention;

fig. 8 is a block diagram of another alternative message window determination apparatus according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example 1

In this embodiment, a message window determining method is provided, and fig. 2 is a flowchart of an optional message window determining method according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:

step S202, a base station configures an offset value of a system message window (SI-window) and/or configures an offset value and/or a length of the PO-window according to a position relation between the SI-window and a PO-window, wherein the PO-window is composed of POs repeatedly sending paging messages between POs at paging occasions of two initially-transmitted paging messages;

and step S204, the base station sends the offset value of the SI-window and/or the offset value and/or the length of the PO-window to the user equipment UE.

Optionally, the above steps may be applied, but not limited to, in a communication scenario. Particularly in communication scenarios supporting NB-IoT user equipment.

Through the steps, the base station configures an offset value for the SI-window and configures an offset value and/or a length for the PO-window according to the position relationship between the SI-window and the PO-window, so that the positions of the SI-window and the PO-window are not overlapped, mutual interference between a system message and a paging message sent by the base station can be avoided, and the configured offset value and the configured length are sent to the UE after configuration, so that the UE can accurately receive the system message and the paging message at the position indicated by the base station and the system message and the paging message cannot mutually interfere. Therefore, the problem that the PO time repeatedly transmitted by the SI-window and the paging conflicts is solved by adopting the steps, and the conflict between the PO time repeatedly transmitted by the SI-window and the PO time repeatedly transmitted by the paging is further avoided.

In this embodiment, the base station may configure, but is not limited to, a different offset value of PO-window for each UE; or the base station may configure different bias values of PO-window for UEs with different coverage levels. Through the above steps, different offsets of PO-window can be configured for each or each class of UEs (meaning having the same coverage level).

Optionally, in step S202, the base station may configure the length of the PO-window according to, but not limited to, a mapping relationship between the coverage level of the UE and the first preset window length; or the base station configures the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and the second preset window length. Through the steps, the base station can configure the length of the PO-window and determine the position of the PO-window.

For example: the base station can search a mapping relation table for storing the mapping relation between the coverage grade and the first preset window length according to the coverage grade of the UE, and obtain the length of the PO-window; or the base station can search a mapping relation table for storing the mapping relation between the repetition times of sending the paging message to the UE and the first preset window length according to the repetition times of sending the paging message to the UE, and obtain the length of the PO-window; in addition, the base station may also search, according to the coverage level of the UE, a mapping relationship table for storing a mapping relationship between the coverage level and the number of repetitions of sending the paging message to the UE, obtain the number of repetitions of sending the paging message to the UE, search, according to the number of repetitions of sending the paging message to the UE, a mapping relationship table for storing a mapping relationship between the number of repetitions of sending the paging message to the UE and the first preset window length, and obtain the length of the PO-window.

Optionally, in step S204, the base station may transmit the offset value and/or the length of the PO-window to the UE by dynamically scheduling the first paging message for repeated transmission or semi-statically scheduling the second paging message for repeated transmission.

For example: the method for dynamically scheduling the repeatedly sent first paging message may be that the base station sends the offset value and/or the length of the PO-window to the UE in the physical downlink control channel carrying the scheduling information of the initially sent paging message PO;

the second paging message transmitted repeatedly may be semi-statically scheduled in such a manner that the base station transmits the offset value and/or the length of the PO-window to the UE through the second paging message and/or the system message.

The method for configuring the offset value and/or length of the PO-window by the base station is described in an alternative embodiment below. In this alternative embodiment, a method for configuring the offset value and/or length of the PO-window is provided, which includes the following steps:

and configuring PO-window for the PO repeatedly sending the paging message, wherein the PO-window consists of the PO repeatedly sending the paging message between the POs of the two initially transmitted paging messages.

The PO-window can configure the offset value and/or the length of the PO-window by dynamically scheduling the paging for the repeated transmission or semi-statically scheduling the paging for the repeated transmission.

The dynamic schedule may be: in a Physical Downlink Control Channel (PDCCH for short) carrying scheduling information of the initial transmission paging message PO, an offset (i.e. an offset value of PO-window) and/or a length of PO-window to be repeatedly transmitted is indicated. The UE may determine starting location information for repeatedly transmitting a paging message (i.e., PO-window) according to the information.

Semi-persistent scheduling may refer to indicating in the configuration of paging; optionally, the offset and/or length of the PO-window may be signaled to the UE via paging and/or system messages.

In this embodiment, the base station may configure the same or different or not completely same offset value of SI-window for each SI; or the base station may configure the bias value of SI-window according to the coverage class used by the SI.

Optionally, the base station may configure the same offset value for all SIs, or may configure different or not completely the same offset value for each SI.

Optionally, in step S204, the base station may send the offset value of SI-window to the UE in system message block 1SIB1, but not limited thereto.

The method for configuring the bias value of the SI-window by the base station is described in an alternative embodiment. In this alternative embodiment, a method of configuration of an SI-window is provided. The strategy of the method is as follows:

the base station may configure an offset value (corresponding to the offset value of the SI-window) for the SI-window, and the offset value may be carried in a system message Block 1(Sytem Information Block 1, abbreviated as SIB1) and broadcasted to notify the UE.

Example 2

In this embodiment, a message window determining method is provided, and fig. 3 is a flowchart of another optional message window determining method according to an embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps:

step S302, the UE receives an offset value of a system message window SI-window sent by the base station and/or an offset value of a paging message window PO-window, wherein the offset value of the SI-window and/or the offset value of the PO-window are configured according to the position relation between the SI-window and the PO-window by the base station, and the PO-window consists of POs for repeatedly sending paging messages between the POs at the paging occasions of two initially transmitted paging messages;

in step S304, the UE determines the position of the SI-window and/or the PO-window according to the offset value of the SI-window and/or the offset value of the PO-window.

Through the steps, the base station configures an offset value for the SI-window and configures an offset value and/or a length for the PO-window according to the position relationship between the SI-window and the PO-window, so that the positions of the SI-window and the PO-window are not overlapped, mutual interference between a system message and a paging message sent by the base station can be avoided, and the user equipment can determine the starting frame position of the SI-window and/or the PO-window according to the offset value of the SI-window and/or the offset value of the PO-window, thereby accurately monitoring the system message and/or the paging message. Therefore, the problem that the PO time repeatedly transmitted by the SI-window and the paging conflicts is solved by adopting the steps, and the conflict between the PO time repeatedly transmitted by the SI-window and the PO time repeatedly transmitted by the paging is further avoided.

In this embodiment, the UE may obtain the length of the PO-window in different manners, which may be the length of the PO-window sent by the receiving base station, or the length of the PO-window obtained by the UE by looking up the mapping relation table.

For example: before the above step S304, the UE may acquire the length of the PO-window.

The manner in which the UE acquires the length of the PO-window may be, but is not limited to, the following:

the method comprises the following steps that firstly, the UE can obtain the length of a PO-window according to the mapping relation between the coverage grade of the UE and the length of a first preset window; or

The method II comprises the steps that the UE obtains the length of the PO-window according to the mapping relation between the repetition times of the paging message sent to the UE by the base station and the length of a second preset window; or

The UE receives the length of the PO-window sent by the base station; or

The UE receives the repetition times of transmitting the paging message to the UE, wherein the repetition times is transmitted by the base station; and the UE acquires the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and the third preset window length.

Through the steps, the UE can determine the length of the PO-window in different modes, so that the position of the PO-window can be accurately determined according to the offset value and/or the length of the PO-window, and the paging message can be accurately monitored.

Optionally, in step S302, the UE may receive the offset value and/or the length of the PO-window in the first repeatedly transmitted paging message dynamically scheduled by the base station or the second repeatedly transmitted paging message semi-statically scheduled.

The method for the UE to receive the first paging message dynamically scheduled and repeatedly sent by the base station may be as follows: the method comprises the steps that UE receives an offset value and/or length of PO-window carried in a physical downlink control channel carrying scheduling information of a primary transmission paging message PO;

the manner for the UE to receive the second paging message repeatedly transmitted by the base station in the semi-persistent scheduling may be: and the UE receives the offset value and/or the length of the PO-window carried in the second paging message and/or the system message.

Optionally, in the step S302, the UE may receive an offset value of the SI-window configured by the base station for each SI, where the offset value of the SI-window of each SI is the same or different or not completely the same; or the UE may receive the offset value of the SI-window configured by the base station according to the coverage level used by the SI, which is sent by the base station.

Optionally, in the step S304, the UE may receive the offset value of the SI-window transmitted by the base station in the system message block 1SIB 1.

Optionally, in step S304, the UE may calculate a preset starting frame position of the SI-window according to a preset strategy, and then determine the position of the SI-window according to the preset starting frame position and the offset value of the SI-window.

By adopting the method of the embodiment, the purpose of reducing the probability of collision between the system message received by the user equipment and the paging message is achieved through the configuration of the SI-window and the configuration of the PO-window.

In order to make the description of the embodiments of the present invention clearer, the following description and illustrations are made with reference to alternative embodiments.

The first optional implementation mode:

the optional embodiment provides a configuration method of the bias value of the SI-window. The method comprises the following steps:

in the LTE system, multiple SIBs with the same period are mapped to the same SI for uniform scheduling. The SIB1 carries the scheduling information of all SIs, and the starting radio frame position for the nth SI (SI-n) is:

SFN mod T＝Floor(x/10)

the SFN is the initial radio frame position, T is the transmission period, x is (n-1) × w, w is the size of the SI window, and the Floor points to the lower rounding.

And configuring an offset value for the SI-window, so that the conflict between the SI-window and the PO repeatedly sent by the paging message can be avoided. The method for configuring the SI-window bias value for the SI-window may be to configure the same SI-window bias value for all the SIs; or different or not identical SI-window bias values may be configured for each SI. In addition, the configured SI-window offset value may be determined by referring to a coverage level used by the base station to broadcast the system message, and a specific value is determined by the base station; and the SI-window offset value can be broadcasted in SIB1 to notify the UE, and the UE can calculate the accurate starting frame position of the SI-window according to the SI-window offset value.

Optional embodiment two:

one significant requirement of NB-IOT user equipment is power saving, and for this purpose, an extended-Discontinuous Reception (eDRX) concept is introduced. The NB-IOT user equipment supports eDRX for several hours, and the power saving effect on the user equipment is very obvious. Due to the long period of eDRX, it may wait for a long time to successfully receive a paging message, and if the paging message carrying the system message update is not timely received by the ue, serious consequences may be caused. For this reason, the NB-IOT introduces the concept of Paging Transmission Window (PTW), i.e. the UE will enter the PTW after going through eDRX for a long time to sleep, and one PTW consists of many radio frames, and the UE monitors the paging message in the PTW. Many POs for initial transmission paging messages are set in the PTW, and the eNodeB will send the initial transmission paging messages using these POs. Between the POs of two initial transmission paging messages, the eNodeB will repeat the transmission of a certain initial transmission paging message. This paging mechanism ensures the reliability of the UE receiving the paging message in the eDRX environment.

This alternative embodiment provides a method of defining a PO-window:

fig. 4 is a schematic diagram of PO-windows according to an alternative embodiment of the present invention, and as shown in fig. 4, a PO for repeatedly sending a paging message between two initially transmitted POs is defined to form a PO-window, and the UE can obtain complete PO-window position information according to the start frame position and window length information of the PO-window. For the PO-window complete information, both the UE and the base station can acquire detailed information, and the UE can monitor the paging message at an accurate position by acquiring the information; the base station can know the information and repeatedly send the paging message at the accurate position.

Optionally, the UE may directly obtain the window length of the PO-window according to a mapping relationship between the coverage level of the UE and the preset window length; the base station side can obtain the coverage grade information of the UE from the network side, and further can obtain the window length of the PO-window of the UE according to the mapping relation between the coverage grade and the window length.

Optionally, the UE may further obtain window length information according to a mapping relationship between the number of times of repeatedly sending the paging message and a preset window length; the above-mentioned number of repetitions, the UE may obtain the number of repetitions from the mapping relationship between the coverage level obtained by the measurement; or the base station informs all the UE of the repetition times through broadcasting, and the repetition times informed to the UE by the base station can be the same repetition times or the mapping relation between the broadcast repetition times and the coverage grade; or the base station may dynamically inform the UE of the repetition number, and load the repetition number information in the PDCCH on which the control information of the paging message is loaded.

Optional embodiment three:

the alternative embodiment provides a method for configuring a bias value of a PO-window. The method comprises the following steps:

the PO-window is configured for the PO that repeatedly sends the paging messages, and to avoid collision of the PO-window with the SI-window, the offset value of the PO-window may be configured by dynamically scheduling a first paging of the repeated transmissions or semi-statically scheduling a second paging of the repeated transmissions.

Dynamic scheduling may refer to: and indicating the repeatedly transmitted offset and/or the length of the PO-window in the PDCCH carrying the scheduling information of the initial transmission paging message PO. The UE may determine starting location information for repeatedly transmitting the paging message according to the information.

Semi-persistent scheduling may refer to: indicating in the configuration of paging; optionally, the offset of the PO-window and/or the length of the PO-window may be signaled to the UE via a paging and/or a system message. The PO-window bias signaled to the UE by the paging is UE-specific, i.e., different PO-window bias values can be configured for each or every type (which can mean having the same coverage level) of UE. The PO-window bias informed to the UE by the system message may be the same or different.

The offset value of the PO-window needs to be configured to be a proper value or a proper range according to the length of the PO-window, which is specifically determined by the base station. In addition, when the offset value of the PO-window is configured, the offset values of the SI-window and the PO-window are coordinated as much as possible to make the SI-window and the PO-window staggered, so as to avoid the occurrence of conflict.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a user equipment (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

Example 3

In this embodiment, a message window determining apparatus is further provided, which is applied to a base station, and is used to implement the foregoing embodiments and optional embodiments, and details of which have been already described are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 5 is a block diagram of a message window determination apparatus according to an embodiment of the present invention, and as shown in fig. 5, the apparatus includes:

1) a configuration module 52, configured to configure an offset value of the SI-window and/or configure an offset value and/or a length of the PO-window according to a position relationship between the system message window SI-window and the paging message window PO-window, where the PO-window is composed of POs repeatedly sending paging messages between paging occasions POs of two initially transmitted paging messages;

2) a sending module 54, coupled to the configuring module 52, configured to send the offset value of the SI-window and/or the offset value and/or the length of the PO-window to the user equipment UE.

Optionally, the above apparatus may be applied, but not limited to, in a communication scenario. Particularly in communication scenarios supporting NB-IoT user equipment.

Optionally, the configuration module 52 may be configured to: configuring different PO-window offset values for each UE; or different bias values of PO-window are configured for the UE with different coverage levels.

Optionally, the configuration module 52 may be configured to: configuring the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or configuring the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and the second preset window length.

Optionally, the sending module 54 may be configured to: transmitting the offset value and/or the length of the PO-window to the UE through a first paging message which is repeatedly transmitted by dynamic scheduling or a second paging message which is repeatedly transmitted by semi-static scheduling; wherein the transmitting the offset value and/or the length of the PO-window to the UE through the first paging message which is repeatedly transmitted through dynamic scheduling comprises: sending the offset value and/or the length of the PO-window to the UE in a physical downlink control channel carrying the scheduling information of the initially transmitted paging message PO; transmitting the offset value and/or the length of the PO-window to the UE through a second paging message repeatedly transmitted by semi-persistent scheduling, comprises: and transmitting the offset value and/or the length of the PO-window to the UE through a second paging message and/or a system message.

Optionally, the configuration module 52 may be configured to: configuring the same or different or not identical bias values of the SI-window for each SI; or configure the bias value of the SI-window according to the coverage level used by the SI.

Optionally, the sending module 54 may be configured to: the offset value of the SI-window is sent to the UE in the system message block 1SIB 1.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in a plurality of processors.

Example 4

In this embodiment, a message window determining apparatus is further provided, which is applied to a user equipment UE, and is used to implement the foregoing embodiments and optional embodiments, which have already been described and are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 6 is a block diagram of another alternative message window determining apparatus according to an embodiment of the present invention, as shown in fig. 6, the apparatus includes:

1) a receiving module 62, configured to receive an offset value of a system message window SI-window and/or an offset value of a paging message window PO-window sent by a base station, where the offset value of the SI-window and/or the offset value of the PO-window are configured by the base station according to a location relationship between the SI-window and the PO-window, and the PO-window is composed of POs for repeatedly sending paging messages between paging occasions PO for initially sending paging messages;

2) a determining module 64 coupled to the receiving module 62 for determining the position of the SI-window and/or the PO-window according to the bias value of the SI-window and/or the bias value of the PO-window.

Fig. 7 is a block diagram of another optional message window determining apparatus according to an embodiment of the present invention, as shown in fig. 7, optionally, the apparatus further includes:

an obtaining module 72, coupled to the determining module 64, is used for obtaining the length of the PO-window.

Optionally, the obtaining module 72 may be configured to: acquiring the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or acquiring the length of the PO-window according to the mapping relation between the repetition times of the paging message sent to the UE by the base station and the second preset window length; or receiving the length of the PO-window sent by the base station; or receiving the repetition times of transmitting the paging message to the UE, which are transmitted by the base station; and acquiring the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and the third preset window length.

Optionally, the receiving module 62 may be configured to: receiving a PO-window offset value and/or length in a first paging message which is dynamically scheduled and repeatedly sent by a base station or a second paging message which is semi-statically scheduled and repeatedly sent; receiving an offset value and/or length of a PO-window in a first paging message which is dynamically scheduled and repeatedly sent by a base station, wherein the offset value and/or the length of the PO-window in the first paging message comprises: receiving a PO-window offset value and/or length carried in a physical downlink control channel carrying scheduling information of a primary transmission paging message PO; receiving the offset value and/or the length of the PO-window in the second paging message repeatedly transmitted by the semi-persistent scheduling of the base station comprises: and receiving the offset value and/or the length of the PO-window carried in the second paging message and/or the system message.

Optionally, the receiving module 62 may be configured to: receiving an offset value of the SI-window configured by the base station for each SI, wherein the offset value of the SI-window of each SI is the same or different or not completely the same; or receiving the bias value of the SI-window configured by the base station according to the coverage grade used by the SI and sent by the base station.

Optionally, the receiving module 62 may be configured to: receiving the offset value of the SI-window sent by the base station in the system message block 1SIB 1.

Fig. 8 is a block diagram of another optional message window determining apparatus according to an embodiment of the present invention, and as shown in fig. 8, optionally, the determining module 64 includes:

1) a calculating unit 82, configured to calculate a preset starting frame position of the SI-window according to a preset policy;

2) a determining unit 84, coupled to the calculating unit 82, for determining the position of the SI-window according to the preset start frame position and the offset value of the SI-window.

Example 5

In this embodiment, a message window determination system is further provided, and the system includes: any of the above message window determining apparatus applied to a base station, and any of the above message window determining apparatus applied to a UE.

Example 6

The embodiment of the present invention also provides software for implementing the technical solutions described in the above embodiments and optional embodiments.

The embodiment of the invention also provides a storage medium. In the present embodiment, the storage medium described above may be configured to store program code for performing the steps of:

s11, the base station configures the offset value of the SI-window and/or configures the offset value and/or the length of the PO-window according to the position relation between the system message window SI-window and the PO-window, wherein the PO-window is composed of POs repeatedly sending paging messages between the POs of the paging occasions of the two initially transmitted paging messages;

s12, the base station sends the offset value of the SI-window and/or the offset value and/or the length of the PO-window to the user equipment UE.

Optionally, the storage medium is further arranged to store program code for performing the steps of:

s21, the UE receives an offset value of a system message window SI-window sent by the base station and/or an offset value of a paging message window PO-window, wherein the offset value of the SI-window and/or the offset value of the PO-window are configured according to the position relation between the SI-window and the PO-window by the base station, and the PO-window consists of POs of two paging occasions PO of initial paging messages which repeatedly send paging messages;

s22, the UE determines the position of the SI-window and/or the PO-window according to the bias value of the SI-window and/or the bias value of the PO-window.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining a message window, comprising:

a base station configures an offset value of a system message window (SI-window) and an offset value and/or length of a paging message window (PO-window) according to a position relation between the SI-window and the PO-window, wherein the PO-window consists of POs repeatedly sending paging messages between POs at paging occasions of two initially transmitted paging messages;

and the base station sends the offset value and/or the length of the PO-window and/or the offset value of the SI-window to User Equipment (UE).

2. The method of claim 1, wherein the base station configuring the offset value of the PO-window according to the positional relationship between the SI-window and the PO-window comprises:

the base station configures different bias values of the PO-window for each UE; or

And the base station configures different PO-window offset values for the UE with different coverage grades.

3. The method of claim 1, wherein the base station configuring the length of the PO-window according to the positional relationship between the SI-window and the PO-window comprises:

the base station configures the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or

And the base station configures the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and the second preset window length.

4. The method according to any of claims 1 to 3, wherein the base station sending the offset value and/or the length of the PO-window to the UE comprises:

the base station sends the offset value and/or the length of the PO-window to the UE through a first paging message sent repeatedly by dynamic scheduling or a second paging message sent repeatedly by semi-static scheduling;

wherein the base station transmits the offset value and/or the length of the PO-window to the UE through the first paging message repeatedly transmitted by the dynamic scheduling comprises: the base station sends the offset value and/or the length of the PO-window to the UE in a physical downlink control channel carrying the scheduling information of the initially transmitted paging message PO;

the base station transmits the offset value and/or the length of the PO-window to the UE through the second paging message repeatedly transmitted by the semi-persistent scheduling: the base station sends the offset value and/or the length of the PO-window to the UE through the second paging message and/or the system message.

5. The method of claim 1, wherein the base station configuring the bias value of the SI-window according to the position relationship between the SI-window and the PO-window comprises:

the base station configures the same or different or not completely same bias value of the SI-window for each SI; or

The base station configures an offset value of the SI-window according to the coverage grade used by the SI.

6. The method of claim 1, wherein the base station sending the bias value for the SI-window to the UE comprises:

the base station sends the offset value of the SI-window to the UE in a System message Block 1SIB 1.

7. A method for determining a message window, comprising:

the method comprises the steps that User Equipment (UE) receives an offset value of a system message window (SI-window) sent by a base station and/or an offset value of a paging message window (PO-window), wherein the offset value of the SI-window and the offset value of the PO-window are configured by the base station according to the position relation between the SI-window and the PO-window, and the PO-window consists of POs for repeatedly sending paging messages between the POs of paging occasions of two initially transmitted paging messages;

the UE determines the position of the SI-window according to the offset value of the SI-window, and/or determines the position of the PO-window according to the offset value of the PO-window.

8. The method of claim 7, wherein before the UE determines the PO-window position based on the PO-window offset value, the method further comprises:

and the UE acquires the length of the PO-window.

9. The method of claim 7, wherein the UE obtaining the length of the PO-window comprises:

the UE acquires the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or

The UE acquires the length of the PO-window according to the mapping relation between the repetition times of the paging message sent to the UE by the base station and a second preset window length; or

The UE receives the length of the PO-window sent by the base station; or

The UE receives the repetition times of the paging message sent by the base station to the UE; and the UE acquires the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and a third preset window length.

10. The method of any of claims 7 to 9, wherein the UE receiving the offset value of PO-window sent by a base station comprises:

the UE receives the PO-window offset value and/or the PO-window length in a first paging message dynamically scheduled and repeatedly sent by the base station or a second paging message semi-statically scheduled and repeatedly sent by the base station;

wherein the receiving, by the UE, the offset value and/or the length of the PO-window in the first paging message dynamically scheduled and repeatedly transmitted by the base station comprises: the UE receives the offset value and/or the length of the PO-window carried in a physical downlink control channel carrying the scheduling information of the initially transmitted paging message PO;

the UE receiving the offset value and/or the length of the PO-window in the second paging message repeatedly transmitted by the base station in the semi-persistent scheduling comprises: the UE receives the offset value and/or the length of the PO-window carried in the second paging message and/or the system message.

11. The method of claim 7, wherein the UE receiving the offset value of the SI-window sent by the base station comprises:

the UE receives an offset value of the SI-window configured by the base station for each SI, wherein the offset value of the SI-window of each SI is the same or different or not completely the same; or

The UE receives an offset value of the SI-window, which is sent by the base station and configured by the base station according to the coverage grade used by the SI.

12. The method of claim 7, wherein the UE receiving the offset value of the SI-window sent by the base station comprises:

the UE receives the offset value for the SI-window sent by the base station in a System message Block 1SIB 1.

13. The method of claim 7, wherein the UE determining the position of the SI-window according to the bias value of the SI-window comprises:

the UE calculates the position of a preset initial frame of the SI-window according to a preset strategy;

and the UE determines the position of the SI-window according to the preset initial frame position and the bias value of the SI-window.

14. A message window determining apparatus applied to a base station, comprising:

a configuration module, configured to configure an offset value of a system message window SI-window and a paging message window PO-window according to a position relationship between the SI-window and the PO-window, and configure the offset value and/or length of the PO-window, where the PO-window is composed of POs repeatedly sending paging messages between paging occasions POs of two initially transmitted paging messages;

a sending module, configured to send the offset value and/or the length of the PO-window and/or the offset value of the SI-window to a user equipment UE.

15. The apparatus of claim 14, wherein the configuration module is configured to:

configuring a different offset value of the PO-window for each UE; or

Configuring different bias values of the PO-window for the UEs with different coverage levels.

16. The apparatus of claim 14, wherein the configuration module is configured to:

configuring the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or

And configuring the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and a second preset window length.

17. The apparatus according to any one of claims 14 to 16, wherein the sending module is configured to:

transmitting the offset value and/or the length of the PO-window to the UE through a first paging message which is repeatedly transmitted through dynamic scheduling or a second paging message which is repeatedly transmitted through semi-static scheduling;

wherein the transmitting the offset value and/or the length of the PO-window to the UE through the first paging message repeatedly transmitted by the dynamic scheduling comprises: sending the offset value and/or the length of the PO-window to the UE in a physical downlink control channel carrying scheduling information of a primary transmission paging message PO;

transmitting the offset value and/or the length of the PO-window to the UE through the second paging message repeatedly transmitted by the semi-persistent scheduling comprises: transmitting an offset value and/or a length of the PO-window to the UE through the second paging message and/or the system message.

18. The apparatus of claim 14, wherein the configuration module is configured to:

configuring the same or different or not identical bias value of the SI-window for each SI; or

Configuring a bias value of the SI-window according to a coverage level used by the SI.

19. The apparatus of claim 14, wherein the sending module is configured to:

sending the offset value of the SI-window to the UE in a System message Block 1SIB 1.

20. A message window determination device applied to User Equipment (UE) is characterized by comprising:

a receiving module, configured to receive an offset value of a system message window SI-window and/or an offset value of a paging message window PO-window sent by a base station, where the offset value of the SI-window and the offset value configuring the PO-window are configured by the base station according to a location relationship between the SI-window and the PO-window, and the PO-window is composed of POs repeatedly sending paging messages between paging occasions POs of two initially transmitted paging messages;

a determining module for determining the position of the SI-window according to the bias value of the SI-window and determining the position of the PO-window according to the bias value of the PO-window.

21. The apparatus of claim 20, further comprising:

and the acquisition module is used for acquiring the length of the PO-window.

22. The apparatus of claim 21, wherein the obtaining module is configured to:

acquiring the length of the PO-window according to the mapping relation between the coverage grade of the UE and the first preset window length; or

Acquiring the length of the PO-window according to the mapping relation between the repetition times of the paging message sent to the UE by the base station and a second preset window length; or

Receiving the length of the PO-window sent by the base station; or

Receiving the repetition times of the paging message sent by the base station to the UE; and acquiring the length of the PO-window according to the mapping relation between the repetition times of sending the paging message to the UE and a third preset window length.

23. The apparatus according to any one of claims 20 to 22, wherein the receiving means is configured to:

receiving the offset value and/or the length of the PO-window in a first paging message dynamically scheduled and repeatedly transmitted by the base station or a second paging message dynamically scheduled and repeatedly transmitted by the semi-static scheduling;

wherein receiving the offset value and/or the length of the PO-window in the first paging message dynamically scheduled and repeatedly transmitted by the base station comprises: receiving the offset value and/or the length of the PO-window carried in a physical downlink control channel carrying the scheduling information of the initially transmitted paging message PO;

receiving the offset value and/or the length of the PO-window in the second paging message repeatedly transmitted by the base station in the semi-persistent scheduling comprises: receiving an offset value and/or length of the PO-window carried in the second paging message and/or system message.

24. The apparatus of claim 20, wherein the receiving module is configured to:

receiving an offset value of the SI-window configured by the base station for each SI, wherein the offset value of the SI-window of each SI is the same or different or not completely the same; or

Receiving an offset value of the SI-window configured by the base station according to the coverage grade used by the SI, wherein the offset value is sent by the base station.

25. The apparatus of claim 20, wherein the receiving module is configured to:

receiving an offset value for the SI-window sent by the base station in a System message Block 1SIB 1.

26. The apparatus of claim 20, wherein the determining module comprises:

the calculating unit is used for calculating the position of a preset initial frame of the SI-window according to a preset strategy;

and the determining unit is used for determining the position of the SI-window according to the preset starting frame position and the bias value of the SI-window.

27. A message window determination system, comprising: the message window determination apparatus of any one of claims 14 to 19, and the message window determination apparatus of any one of claims 20 to 26.