CN105493591A

CN105493591A - Cell paging method, device and system

Info

Publication number: CN105493591A
Application number: CN201380000685.3A
Authority: CN
Inventors: 黄英; 陈东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-05-17
Filing date: 2013-05-17
Publication date: 2016-04-13

Abstract

The invention provides a cell paging method, device and system. The cell paging method comprises the following steps: determining first paging occasion so as to make the intervals between the first paging occasion calculated by a first system and the second paging occasion calculated by a second system be identical, wherein the radio frame of the first system is N*10 ms, the radio frame of the second system is 10 ms, and N represents a positive integer; determining the position indicated by the first paging so as to make that the position indicated by the first paging is in the front 10 ms of the radio frame of the first system to eliminate the prolonged paging period caused by time-slot extension; and sending radio frame to user equipment (UE) to carry out paging. The provided method can avoid prolonged paging period caused by setting a paging position in a whole radio frame range. Moreover, network cell equipment sends radio frame comprising the paging indicator to UE to carry out paging, thus the period of UE detection on paging occasion is shortened, and the energy consumption of UE is further reduced.

Description

Method, device and system for cell paging

Technical Field

The present invention relates to communications technologies, and in particular, to a method, an apparatus, and a system for cell paging.

Background

In the prior art, a Universal Mobile Telecommunications System (UMTS) bandwidth is fixed, and a standard bandwidth is 5 MHz.

In order to use the bandwidth of different frequency bands. With the continuous development of the technology, a scalable universal mobile telecommunications system (S-UMTS), that is, a narrowband UMTS, is introduced, where the bandwidth of the S-UMTS is lower than 5MHz of the standard, specifically, the standard bandwidth may be scaled according to different scaling factors N, and the bandwidth of the S-UMTS may be 1/N of the standard bandwidth, such as 1/2, 1/4, and the like. Meanwhile, in order to ensure that the S-UMTS and the UMTS have the same power spectral density, after the bandwidth of the S-UMTS is scaled, the expansion time slot of the S-UMTS radio frame needs to be expanded. Thus, for a radio frame of 10ms duration, when transmitted in S-UMTS, the radio frame becomes N × 10 ms. For example, a radio frame requires 10ms to transmit 300 bits. In an S-UMTS with a scaling factor N of 2, the radio frame transmission takes 20ms to transmit 300 bits. For UMTS, paging interval time = n x radio frame length x discontinuous reception cycle length (DRXCycleLength), where DRXCycleLength is broadcast by the UMTS system to each user in a cell, and n is an integer and may be 0, 1, ….

However, as can be seen from the above expression of the paging interval time, the change of the radio frame length affects the paging interval time, and since the slot is expanded for the S-UMTS radio frame in order to maintain the same power spectral density in the S-UMTS, it can be known from the existing expression of the paging interval time that for the S-UMTS with a scaling factor N, when the original radio frame length is 10ms, the radio frame length corresponding to the S-UMTS is N × 10 ms. Therefore, according to the existing method for acquiring the paging interval, the paging interval in the S-UMTS is extended, and since the radio frame length of the S-UMTS is N × 10ms, when a paging location is set in a radio frame of the S-UMTS, the prior art needs to set in the whole N × 10ms, which also causes the paging cycle of the device related to paging and the user equipment that needs to detect paging in the system to be extended, and further causes the power consumption of the user equipment to be increased.

Disclosure of Invention

The invention provides a method, a device and a system for cell paging, which are used for eliminating paging cycle time delay and reducing power consumption of user equipment.

The first aspect of the present invention provides a method for cell paging, including:

determining a first paging occasion to enable a first paging occasion calculated by a first system to be consistent with a second paging occasion interval calculated by a second system, wherein a radio frame of the first system is N multiplied by 10ms, a radio frame of the second system is 10ms, and N is a positive integer;

determining a location of a first paging indicator within a first 10ms of a radio frame of the first system to counteract an extension of a paging cycle by slot spreading;

and sending the wireless frame to User Equipment (UE) for paging.

With reference to the first aspect, in a first possible implementation manner, the determining the first paging occasion so that the first paging occasion calculated by the first system and the second paging occasion calculated by the second system are spaced consistently includes:

determining the first paging occasion by:

the first paging occasion = f₁(IMSI) + n × drx cycle length DRXCycleLength of the first system;

wherein, the IMSI is an international mobile subscriber identity, and f₁(IMSI) is a function with the input parameter of IMSI and the output value less than DRXCyleLength of the first system, wherein n is an integer and the value range is 0 to S-U of the scalable universal mobile telecommunications systemMaximum frame number of MTS.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the determining a first paging occasion further includes:

dividing the first paging occasion by the N and rounding;

or,

the DRXCycleLength of the first system is one N times that of the second system.

With reference to the first aspect and the first possible implementation manner and the second possible implementation manner of the first aspect, in a third possible implementation manner, the determining a location of the first paging indicator so that the location of the first paging indicator is within the first 10ms of a radio frame of the first system to offset an extension of a paging cycle by slot spreading includes:

determining the location of the first paging indicator by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

wherein q is the location of the first paging indicator, SFN is the system frame number of S-UMTS, Np is the number of the first paging indicators per radio frame, and f is the number of the first paging indicators per radio frame₄(IMSI) is a function of an input parameter being said IMSI, said f₄(IMSI) for randomly allocating User Equipment (UE) to different paging groups according to said IMSI, said f₂(SFN) is a function of the input parameter as the SFN, f₃(Np) is a function of an input parameter being said Np, said f₂(SFN) with said f₃(Np) for uniformly setting locations for paging of the UE.

With reference to the first aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the first aspect, in a fourth possible implementation manner, before determining the first paging occasion so that the interval between the first paging occasion calculated by the first system and the second paging occasion calculated by the second system is consistent, the method further includes:

and reducing the spreading factor SF according to the size of the N so as to offset the extension of the paging cycle by the time slot expansion.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the reducing a spreading factor SF according to the size of the N includes:

when the N is set to 2, the SF is set to 128; or,

when the N is set to 4, the SF is set to 64.

With reference to the first aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the first aspect, in a sixth possible implementation manner, before determining the first paging occasion so that the interval between the first paging occasion calculated by the first system and the second paging occasion calculated by the second system is consistent, the method further includes:

keeping the spreading factor SF of the paging indication channel PICH unchanged, changing the modulation mode from the QPSK signal to the 16QAM or 64QAM to offset the extension of the paging cycle by the time slot expansion.

With reference to the first aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the first aspect, in a seventh possible implementation manner, before determining the first paging occasion so that the interval between the first paging occasion calculated by the first system and the second paging occasion calculated by the second system is consistent, the method further includes:

keeping the Np unchanged, and modifying the repetition number value corresponding to each Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, the modifying, with keeping Np unchanged, a value of the number of repetitions corresponding to each Np includes:

if the Np is 18, adjusting the repetition number value corresponding to the Np to be 8; or,

if the Np is 36, adjusting the repetition number value corresponding to the Np to be 4; or,

if the Np is 72, adjusting the repetition number value corresponding to the Np to be 2; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

With reference to the seventh possible implementation manner of the first aspect, in a ninth possible implementation manner, the modifying Np while keeping the value of the number of repetitions corresponding to the number of paging indications unchanged includes:

if N is 2, setting Np to be 9 or 18 or 36 or 72;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

A second aspect of the present invention provides a method for cell paging, including:

receiving a wireless frame sent by network element equipment at a first paging occasion;

the first paging occasion calculated by a first system is consistent with the second paging occasion calculated by a second system in interval, a radio frame of the first system is N multiplied by 10ms, a radio frame of the second system is 10ms, and N is a positive integer;

detecting a first paging indicator at a corresponding location within 10ms before the radio frame;

and if the first paging indication is detected, reading a paging message on a related channel.

With reference to the second aspect, in a first possible implementation manner, the receiving, at the first paging occasion, a radio frame sent by a network element device includes:

detecting the first paging occasion by:

wherein, the IMSI is an international mobile subscriber identity, and f₁The (IMSI) is a function with an input parameter of the IMSI and an output value smaller than the DRXCycleLength of the first system, where n is an integer and has a value ranging from 0 to the maximum frame number of the scalable universal mobile telecommunications system S-UMTS.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, where DRXCycleLength of the first system is equal to DRXCycleLength of the second system, before receiving, at the first paging occasion, the radio frame sent by the network element device, the method further includes:

dividing the first paging occasion by the N and rounding;

or,

With reference to the second aspect and the first possible implementation manner and the second possible implementation manner of the second aspect, in a third possible implementation manner, the detecting a first paging indicator at a corresponding location within 10ms before the radio frame includes:

detecting a location of the first paging indicator for a corresponding location by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

wherein q is the firstThe position of paging indication, the SFN is the system frame number of S-UMTS, the Np is the number of the first paging indication of each radio frame, and f₄(IMSI) is a function of an input parameter being said IMSI, said f₄(IMSI) for randomly allocating User Equipment (UE) to different paging groups according to said IMSI, said f₂(SFN) is a function of the input parameter as the SFN, f₃(Np) is a function of an input parameter being said Np, said f₂(SFN) with said f₃(Np) for uniformly setting locations for paging of the UE.

With reference to the second aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the second aspect, in a fourth possible implementation manner, before receiving, at the first paging occasion, the radio frame sent by the network element device, the method further includes:

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner, the reducing the spreading factor SF according to the size of N includes:

when the N is set to 2, the SF is set to 128; or,

when the N is set to 4, the SF is set to 64.

With reference to the second aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the second aspect, in a sixth possible implementation manner, before receiving, at the first paging occasion, the radio frame sent by the network element device, the method further includes:

With reference to the second aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the second aspect, in a seventh possible implementation manner, before receiving, at the first paging occasion, the radio frame sent by the network element device, the method further includes:

With reference to the seventh possible implementation manner of the second aspect, in an eighth possible implementation manner, the modifying, with the Np kept unchanged, a value of the number of repetitions corresponding to each Np includes:

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

With reference to the seventh possible implementation manner of the second aspect, in a ninth possible implementation manner, the modifying Np while keeping the value of the number of repetitions corresponding to the number of paging indications unchanged includes:

if N is 2, setting Np to be 9 or 18 or 36 or 72;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

A third aspect of the present invention provides a cell paging apparatus, including:

a paging occasion determining module, configured to determine a first paging occasion, so that a first paging occasion calculated by a first system is consistent with a second paging occasion calculated by a second system in interval, where a radio frame of the first system is nx10 ms, a radio frame of the second system is 10ms, and N is a positive integer;

a paging indication position determining module, configured to determine a position of a first paging indication, so that the position of the first paging indication is within the first 10ms of a radio frame of the first system, so as to counteract extension of a paging cycle by timeslot expansion;

and the sending module is used for sending the wireless frame to User Equipment (UE) for paging.

With reference to the third aspect, in a first possible implementation manner, the paging occasion determining module specifically determines the first paging occasion by using the following formula:

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner, the paging occasion determining module is configured to set a DRXCycleLength of the first system to be equal to a DRXCycleLength of the second system, and after the detecting the first paging occasion, the method further includes:

the paging occasion determining module is further configured to divide the first paging occasion by the N and round;

or,

the paging occasion determining module is further configured to set the DRXCycleLength of the first system to be one N-th of the DRXCycleLength of the second system.

With reference to the third aspect and the first possible implementation manner and the second possible implementation manner of the third aspect, the paging indicator position determining module determines the position of the first paging indicator by using the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

With reference to the third aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the third aspect, in a fourth possible implementation manner, the method further includes:

and the processing module is used for reducing the spreading factor SF according to the size of the N so as to offset the extension of the paging cycle by the time slot expansion.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, the processing module is specifically configured to, when N is set to 2, set the SF to 128; or,

when the N is set to 4, the SF is set to 64.

With reference to the third aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the third aspect, the processing module is further configured to keep the spreading factor SF of the paging indication channel PICH unchanged, and change the modulation manner from QPSK to 16QAM or 64QAM, so as to offset the extension of the paging cycle by the slot spreading.

With reference to the third aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the third aspect, in a seventh possible implementation manner, the processing module is further configured to keep the Np unchanged, and modify a repetition number value corresponding to each Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

With reference to the seventh possible implementation manner of the third aspect, in an eighth possible implementation manner, the processing module is specifically configured to, if Np is 18, adjust a repetition number value corresponding to Np to be 8; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

With reference to the seventh possible implementation manner of the third aspect, in a ninth possible implementation manner, the processing module is specifically configured to set Np to 9, 18, 36, or 72 if N is 2;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

A fourth aspect of the present invention provides a user equipment UE, including:

a receiving module, configured to receive, at a first paging occasion, a wireless frame sent by a network element device; the first paging occasion calculated by a first system is consistent with the second paging occasion calculated by a second system in interval, a radio frame of the first system is N multiplied by 10ms, a radio frame of the second system is 10ms, and N is a positive integer;

a detection module, configured to detect a first paging indicator at a corresponding location within 10ms before a radio frame;

the detection module is further configured to read a paging message on a related channel if the first paging indicator is detected.

With reference to the fourth aspect, in a first possible implementation manner, the detecting module detects the first paging occasion by using the following formula:

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the UE further includes:

a processing module, configured to set a DRXCycleLength of the first system to be equal to a DRXCycleLength of the second system, where after detecting the first paging occasion, the processing module further includes:

the processing module is further configured to divide the first paging occasion by the N and round;

or,

the processing module is further configured to set the DRXCycleLength of the first system to be one N of the DRXCycleLength of the second system.

With reference to the fourth aspect and the first possible implementation manner and the second possible implementation manner of the fourth aspect, in a third possible implementation manner, the detecting module detects the location of the first paging indicator by using the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

With reference to the fourth aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the processing module is further configured to reduce a spreading factor SF according to the size of the N to offset extension of a paging cycle by timeslot spreading.

With reference to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner, the processing module is specifically configured to set the SF to 128 when N is set to 2; or,

when the N is set to 4, the SF is set to 64.

With reference to the fourth aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the fourth aspect, in a sixth possible implementation manner, the processing module is further configured to keep a spreading factor SF of a paging indicator channel PICH unchanged, and change a modulation scheme from QPSK to 16QAM or 64QAM, so as to offset a lengthening of a paging cycle by slot spreading.

With reference to the fourth aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the fourth aspect, in a seventh possible implementation manner, the processing module is further configured to keep the Np unchanged, and modify a repetition number value corresponding to each Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner, the processing module is specifically configured to, if Np is 18, adjust a repetition number value corresponding to Np to be 8; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

With reference to the seventh possible implementation manner of the fourth aspect, in a ninth possible implementation manner, the processing module is specifically configured to set Np to 9 or 18 or 36 or 72 when N is 2;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

A fifth aspect of the present invention provides a scalable universal mobile telecommunications system S-UMTS system, comprising: the cell paging apparatus to be protected by each possible implementation manner of the third aspect and the third aspect, and the user equipment UE to be protected by each possible implementation manner of the fourth aspect and the fourth aspect.

A sixth aspect of the present invention provides a cell paging apparatus, including:

the processor is used for determining a first paging occasion to enable the interval of the first paging occasion calculated by a first system to be consistent with the interval of a second paging occasion calculated by a second system, wherein a radio frame of the first system is N multiplied by 10ms, the radio frame of the second system is 10ms, and N is a positive integer;

the processor is further configured to determine a location of a first paging indicator within the first 10ms of a radio frame of the first system to offset an extension of a paging cycle by slot spreading;

and the transmitter is used for sending the wireless frame to User Equipment (UE) for paging.

With reference to the sixth aspect, in a first possible implementation manner, the processor determines the first paging occasion specifically by using the following formula:

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the processor is configured to set a DRXCycleLength of the first system to be equal to a DRXCycleLength of the second system, and after detecting the first paging occasion, the processor further includes:

the processor is further configured to divide the first paging occasion by the N and round;

or,

the processor is further configured to set the DRXCycleLength of the first system to be one N of the DRXCycleLength of the second system.

With reference to the sixth aspect and the first possible implementation manner and the second possible implementation manner of the sixth aspect, the paging indicator position determining module determines the position of the first paging indicator by using the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

With reference to the sixth aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner, the processor is further configured to reduce the spreading factor SF according to the size of the N to offset the extension of the paging cycle by the timeslot spreading.

With reference to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner, the processor is specifically configured to, when N is set to 2, set the SF to 128; or,

when the N is set to 4, the SF is set to 64.

With reference to the sixth aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the sixth aspect, the processor is further configured to keep the spreading factor SF of the paging indication channel PICH unchanged, and change the modulation manner from QPSK to 16QAM or 64QAM, so as to offset the extension of the paging cycle by the slot spreading.

With reference to the sixth aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the sixth aspect, in a seventh possible implementation manner, the processor is further configured to keep the Np unchanged, and modify a repetition number value corresponding to each Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

With reference to the seventh possible implementation manner of the sixth aspect, in an eighth possible implementation manner, the processor is specifically configured to adjust the repetition number value corresponding to Np to be 8 if Np is 18; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

With reference to the seventh possible implementation manner of the sixth aspect, in a ninth possible implementation manner, the processor is specifically configured to set Np to 9 or 18 or 36 or 72 if N is 2;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

A seventh aspect of the present invention provides a user equipment UE, including:

the receiver is used for receiving the wireless frame sent by the network element equipment at the first paging occasion; the first paging occasion calculated by a first system is consistent with the second paging occasion calculated by a second system in interval, a radio frame of the first system is N multiplied by 10ms, a radio frame of the second system is 10ms, and N is a positive integer;

a processor for detecting a first paging indicator at a corresponding location within 10ms of a radio frame;

the processor is further configured to read a paging message on a related channel if the first paging indicator is detected.

With reference to the seventh aspect, in a first possible implementation manner, the processor detects the first paging occasion by the following formula:

With reference to the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the processor is further configured to set a DRXCycleLength of the first system to be equal to a DRXCycleLength of the second system, and after detecting the first paging occasion, the processor further includes:

or,

With reference to the seventh aspect and the first possible implementation manner and the second possible implementation manner of the seventh aspect, in a third possible implementation manner, the processor detects the location of the first paging indicator by using the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

wherein q is the location of the first paging indicator, SFN is the system frame number of S-UMTS, Np is the number of the first paging indicators per radio frame, and f is the number of the first paging indicators per radio frame₄(IMSI) is a function of an input parameter being said IMSI, said f₄(IMSI) for randomly allocating user equipment according to said IMSIUE to different paging groups, said f₂(SFN) is a function of the input parameter as the SFN, f₃(Np) is a function of an input parameter being said Np, said f₂(SFN) with said f₃(Np) for uniformly setting locations for paging of the UE.

With reference to the seventh aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the seventh aspect, in a fourth possible implementation manner, the processor is further configured to reduce a spreading factor SF according to the size of the N to offset extension of a paging cycle by timeslot spreading.

With reference to the fourth possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the processor is specifically configured to set the SF to 128 when N is set to 2; or,

when the N is set to 4, the SF is set to 64.

With reference to the seventh aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the seventh aspect, in a sixth possible implementation manner, the processor is further configured to keep a spreading factor SF of a paging indicator channel PICH unchanged, and change a modulation scheme from QPSK to 16QAM or 64QAM, so as to offset a lengthening of a paging cycle by slot spreading.

With reference to the seventh aspect and the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner of the seventh aspect, in a seventh possible implementation manner, the processor is further configured to keep the Np unchanged, and modify a repetition number value corresponding to each Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

With reference to the seventh possible implementation manner of the seventh aspect, in an eighth possible implementation manner, the processor is specifically configured to adjust the repetition number value corresponding to Np to be 8 if Np is 18; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

With reference to the seventh possible implementation manner of the seventh aspect, in a ninth possible implementation manner, the processor is specifically configured to set Np to 9 or 18 or 36 or 72 if N is 2;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

The method, the device and the system for cell paging provided by the embodiment determine a first paging occasion through network element equipment, so that an interval between the first paging occasion calculated by a first system and a second paging occasion calculated by a second system is consistent, and then determine a position of a first paging indication, so that the position of the first paging indication is within the first 10ms of a radio frame of the first system, and offset the extension of a paging interval time caused by time slot expansion, and avoid the extension of a paging cycle caused by setting a paging position in the whole radio frame.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a diagram of a radio frame provided by a UMTS;

fig. 2 is a flowchart illustrating a method for cell paging according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for cell paging according to a fourth embodiment of the present invention;

fig. 4 is a schematic signaling interaction diagram of a cell paging method according to a fifth embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cell paging device according to a sixth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a cell paging apparatus according to a seventh embodiment of the present invention;

fig. 7 is a schematic structural diagram of a user equipment UE according to an eighth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a user equipment UE according to a ninth embodiment of the present invention;

fig. 9 is a schematic structural diagram of a cell paging apparatus according to a tenth embodiment of the present invention;

fig. 10 is a schematic structural diagram of a user equipment UE according to an eleventh embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the prior art, except that the paging interval of the scalable universal mobile telecommunications system (S-UMTS) may generate the paging delay, it is mentioned above that the S-UMTS needs to set the paging location within the whole nx10 ms of a radio frame, that is, the sending and detecting of the paging indicator consumes N x 10ms, so that the paging cycle is lengthened. In order to reduce the elongated delay, the present invention sets the paging location to the first 10ms (first 10 ms) of a radio frame, if the paging location method of the related art is directly used, there is the following problem.

Referring to fig. 1, it should be noted that, in a network element device of a network system, a paging occasion (hereinafter, referred to as a second paging occasion of a second system) is selected, a paging is performed at a location q of the radio frame of the paging occasion, where the location q is a specific number of the 300bits, that is, a specific number b in fig. 1₀To b₂₉₉In the same way, the corresponding UE reads the Paging Indicator Channel (PICH) information at the same paging occasion and location, and bit 1 at the location is marked with the paging information. For an existing UMTS with a bandwidth of 5MHz, a PICH adopts a Quadrature Phase Shift Keying (QPSK) modulation mode, a Spreading Factor (SF) is 256, and a radio frame carries 300bits in 10 ms. Further, the location of the page is b_c×qWhere c is a repetition value corresponding to the number Np of the first paging indicator, referring to table one, Np and the repetition value c have the following relationship:

watch 1

	Np=18	Np=36	Np=72	Np=144
					Number of repetition c	16	8	4	2

For example Np =18, repeat 16 positions 1, i.e. b, starting from c × q_16q=b_16q+1=b_16q+_2。。。=b_16q+15And = 1. Np =36, repeating 8 positions 1 starting from c × q. Np =72, repeating 4 positions 1 starting from c × q. Np =144, repeating 2 positions 1 starting from c × q. It can be seen that in the first 10ms of 300bits in the radio frame of the first system, 18 × 16=36 × 8=72 × 4=2 × 144=288bits, and the remaining 12bits system remains, temporarily unused. However, when the above technical solution is applied to a scalable universal mobile telecommunications system (S-UMTS), since a slot is extended to an S-UMTS radio frame in order to maintain the same power spectral density as that of the original UMTS in the S-UMTS, a radio frame N10 ms is 300bits, and the first 10ms is 300/Nbits. Therefore, when the technical scheme is adopted, the paging position cannot be guaranteed to be arranged in the 300bits bearing load in the first 10ms of the wireless frame. The paging location is set using the entire N x 10ms radio frame, which results in an increase in the overall S-UMTS paging latency and power consumption. How the invention is solved by the following embodiments provided by the inventionThe two technical problems are explained.

Fig. 2 is a flowchart of a method for cell paging according to an embodiment of the present invention, where an execution main body is a network element device in a scalable universal mobile telecommunications system (scalable universal mobile telecommunications system, abbreviated as S-UMTS), for example, a base station, and as shown in fig. 2, the method for cell paging includes the following contents:

100. the network element equipment determines a first paging occasion, so that the interval of the first paging occasion calculated by a first system is consistent with the interval of a second paging occasion calculated by a second system, wherein a radio frame of the first system is N multiplied by 10ms, the radio frame of the second system is 10ms, and N is a positive integer.

Specifically, the first system is S-UMTS, and the second system is UMTS. The radio frame length of the UMTS system is 10ms, the frame length of the S-UMTS system is N x 10ms, and the slot rate is reduced by a factor of N compared to UMTS.

It should be noted that the above "coincidence" means the same order of magnitude, i.e. falling within the interval: [2^t-2^t+1) T =1, 2, 3 … for one radio frame length. For example, the UMTS paging occasion interval is 320ms, which falls within the interval [2 ]⁵-2⁶) 10ms, where t = 5; if the paging occasion interval of S-UMTS is 340ms, the interval is also [2 ]⁴-2⁵）*20=[2^5-2⁶]10ms, they are considered herein to be consistent.

101. The network element device determines the location of the first paging indicator so that the location of the first paging indicator is within the first 10ms of a radio frame of the first system to counteract the lengthening of the paging cycle by the slot spreading.

102. The network element equipment sends a radio frame to user equipment (user equipment, abbreviated as UE) for paging.

The method for cell paging provided in this embodiment determines, by a network element device, a first paging occasion so that an interval between the first paging occasion calculated by a first system and a second paging occasion calculated by a second system is consistent, and then determines a position of a first paging indicator so that the position of the first paging indicator is within the first 10ms of a radio frame of the first system, thereby counteracting extension of a paging interval time caused by timeslot expansion, and avoiding extension of a paging cycle caused by setting a paging position within the whole radio frame.

Further, for 100 in the first embodiment, one possible implementation manner is:

determining a first paging occasion by:

first paging occasion = f₁(IMSI) + n × S-discontinuous reception cycle length DRXCyclelLength for UMTS;

wherein, IMSI is International Mobile Subscriber Identity (IMSI), f₁The (IMSI) is a function of which the input parameter is IMSI and the output value is smaller than DRXCyleLength of the first system, n is an integer and the value range is 0 to the maximum frame number of the scalable universal mobile telecommunications system S-UMTS.

In particular, f₁(IMSI) = (IMSI) mod (DRXCycleLength of S-UMTS), it should be noted that, in this embodiment, the DRXCycleLength of S-UMTS is issued by system broadcast in a cell, and each UE can receive the DRXCycleLength.

Note that, the paging occasion interval length = paging occasion interval × radio frame length.

Further, since the radio frame of the S-UMTS is extended, so that after the first paging occasion is determined, the length of the interval of the first paging occasion is also extended, in order to reduce the time interval of the first paging occasion, the first paging occasion is further processed in the following two possible implementation manners:

first, setting drxcyclength of S-UMTS to be equal to drxcyclength of UMTS, and after determining the first paging occasion, further comprising:

the first method is as follows:

the first paging occasion is divided by N and rounded.

Specifically, for example, drxcyclelength (k) of S-UMTS is set equal to drxcyclelength (k) of UMTS, where k =6, 7, 8, 9.

Alternatively, the second mode:

DRXCyclelength of S-UMTS is one N times that of UMTS.

In particular, for example, DRXCyclelength (K) for S-UMTS, DRXCyclelength (K) for UMTS, where K = K-log₂N, e.g., N =2, k =5, 6, 7, 8; n =4, k =4, 5, 6, 7.

Further, on the basis of the first embodiment and each possible implementation manner, as for 101 in the first embodiment, one possible implementation manner is as follows:

determining the location of the first paging indicator by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

wherein q is the position of the first paging indicator, SFN is the system frame number of S-UMTS, Np is the number of the first paging indicators of each radio frame, f₄(IMSI) is a function of the input parameter IMSI, f₄(IMSI) for randomly allocating user Equipment UE to different paging groups based on IMSI, f₂(SFN) is a function of the input parameter as SFN, f₃(Np) is a function with an input parameter Np, f₂(SFN) and f₃(Np) is used to uniformly set the location of UE paging.

Specifically, Np may be sent to each UE through a system broadcast of the cell. f. of₃(Np) may be Np/N rounded off, where N =2, 4, ….

Further, on the basis of the first embodiment and each possible implementation manner, before 100 in the first embodiment, the method further includes:

depending on the size of N, the spreading factor SF is reduced to counteract the lengthening of the paging cycle by the slot spreading.

Specifically, when N is set to 2, SF is set to 128; alternatively, when N is set to 4, SF is set to 64. When the SF is set to 128, one radio frame transmits 600 bits. When SF is set to 64, one radio frame transmits 1200 bits. For S-UMTS, a radio frame is N x 10ms, when SF is 128, the number of bits occupied by the first 10ms of the 1/N frame of the radio frame transmission is 600/Nbits. When the SF is 64, the number of bits occupied by the first 10ms of the 1/N frame transmitted by the wireless frame is 1200/Nbits. For the prior art, the S-UMTS radio frame is extended by slots, where one radio frame N × 10ms is 300bits, and the first 10ms is 300/Nbits, resulting in the prior art needing to use the entire N × 10ms radio frame to set the paging location. Compared with the prior art, in this embodiment, on the basis that the network element device determines the first paging occasion, so that the interval between the first paging occasion calculated by the S-UMTS and the second paging occasion calculated by the UMTS is consistent, that is, under the condition that the first 10ms of the S-UMTS is 300bits, the spreading factor SF is reduced according to the size of N, so as to ensure that the position of the first paging indication is within the first 10ms of the radio frame of the first system, that is, within 300bits occupied by 10ms of the radio frame, and when N =2, the SF is set to 128. When N =4, SF is set to 64. And may be analogized in turn. In this way, the UE only needs to detect the first 10ms of the 1/N frame to obtain the paging indicator when receiving the radio frame.

Optionally, on the basis of the first embodiment and each possible implementation manner, before 100 in the first embodiment, the method further includes:

Preferably, on the basis of the first embodiment and each possible implementation manner, before 100 in the first embodiment, the method further includes:

keeping Np unchanged, and modifying the repetition number value corresponding to each Np; or, the Np is modified while keeping the value of the repetition number corresponding to the Np unchanged.

Specifically, the following describes the modification of Np or the number of repetitions corresponding to the modification of Np in two specific embodiments.

Example two

The network only sends the paging indication in the first 10ms of the radio frame, then the UE only detects the first 10ms of each radio frame, and in turn, the data (300 bits/N) borne by the first radio frame of the system is 150bits when N = 2; when N =4, the carried data is 75 bits. For example, referring to table two, when N =2, in order to ensure that Np can take on a value of 18, 36, 72, or 144, it is necessary to set the repetition number value corresponding to Np to 8, 4, 2, or 1. So that the product of Np and the corresponding repetition value is within 150bits of a total required data bit. That is, if Np is 18, the number of iterations corresponding to Np is adjusted to 8; or if Np is 36, adjusting the repetition number value corresponding to Np to 4; or if Np is 72, adjusting the value of the number of times of repetition corresponding to Np to 2; or if Np is 144, the repetition number corresponding to Np is adjusted to 1.

Watch two

	Np=18	Np=36	Np=72	Np=144
					Number of repetition c	8	4	2	1

EXAMPLE III

And modifying the Np under the condition that the value of the repetition times is not changed. Taking N =2 as an example, when N =2, the carried data is 150 bits. Referring to table three, wherein the repetition number values are respectively: 16. 8, 4 or 2. At this time, Np is set to 9 or 18 or 36 or 72. To ensure that the product of Np and the corresponding repetition value, i.e. a total required data bit, is within 150 bits. Similarly, when N =4, the data carried is 75 bits. Then Np is set to 4 or 8 or 16 or 32, provided that the value of the number of repetitions c is constant. To ensure that the product of Np and the corresponding repeat value is within 75 bits.

Watch III

	Np=9	Np=18	Np=36	Np=72
					Number of repetition c	16	8	4	2

Fig. 3 is a flowchart of a cell paging method according to a fourth embodiment of the present invention, where an execution subject is a user equipment UE, and it should be noted that, in the following, an embodiment in which the UE is the execution subject and a possible implementation manner adopt a method consistent with that of a network element device, as shown in fig. 3, the cell paging method includes the following contents:

200. and the user equipment UE detects the wireless frame sent by the network element equipment at the first paging occasion.

The interval of a first paging occasion calculated by a first system is consistent with that of a second paging occasion calculated by a second system, a wireless frame of the first system is Nx 10ms, a wireless frame of the second system is 10ms, and N is a positive integer;

specifically, the first system is S-UMTS, and the second system is UMTS. The frame length of the UMTS system is 10ms, the frame length of the S-UMTS system is N x 10ms, and the slot rate is reduced by a factor of N compared to UMTS. The first paging occasion is a paging occasion of the first system, i.e. a paging occasion of the S-UMTS, and the second paging occasion is a paging occasion of the second system, i.e. a paging occasion of the UMTS.

It should be noted that the above "coincidence" means the same order of magnitude, i.e. falling within the interval: [2^t-2^t+1) T =1, 2, 3 … for one radio frame length. For example, the UMTS paging occasion interval is 320ms, which falls within the interval [2 ]⁵-2⁶) 10ms, where t = 5; if the paging occasion interval of S-UMTS is 340ms, the interval is also [2 ]⁴-2⁵）*20=[2^5-2⁶]*10msThey are considered herein to be identical.

The UE has radio capability to support S-UMTS systems.

201. The UE detects the first paging indicator at a corresponding location within the first 10ms of a radio frame of the first system.

202. And if the UE detects the first paging indication, reading the paging message on the related channel.

Specifically, if the UE detects a paging indication in the corresponding location, the subsequent procedure is the same as the existing procedure, i.e., the paging message is read in the secondary common physical control channel (S-ccpch) (second common control physical channel).

In the method for cell paging provided in this embodiment, first, a UE detects that a network element device sends a radio frame at a first paging occasion, where a first paging occasion calculated by a first system is consistent with a second paging occasion calculated by a second system in interval; and detecting the position of the first paging indication within the first 10ms of the wireless frame of the first system, and reading the paging message subsequently if the paging indication is detected. The time spent by the UE of the S-UMTS for detecting the paging indication is the same as that spent by the UE of the UMTS, so that the prolonging of the period of the paging detection opportunity of the UE caused by the lengthening of the radio frame of the S-UMTS system is reduced, and the power consumption of the UE is further reduced.

Further, for 200 in the fourth embodiment, one possible implementation manner is:

determining a first paging occasion by:

wherein IMSI is international mobile subscriber identity, f₁The (IMSI) is a function of which the input parameter is IMSI and the output value is smaller than DRXCyleLength of the first system, n is an integer and the value range is 0 to the maximum frame number of the scalable universal mobile telecommunications system S-UMTS.

Specifically, there is a description in a corresponding implementation manner using the network element device as an execution main body, and details are not described here.

Paging occasion interval length = paging occasion interval radio frame length.

first, setting drxcyclength of S-UMTS to be equal to drxcyclength of UMTS, and before receiving a radio frame sent by a network element device at a first paging occasion, the method further includes:

the first method is as follows:

dividing the first paging occasion by N and rounding;

alternatively, the second mode:

DRXCyclelength of S-UMTS is one N times that of UMTS.

Further, on the basis of the fourth embodiment and various possible implementation manners, as for 201 in the fourth embodiment, one possible implementation manner is:

detecting a first paging indicator of a corresponding location by the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

After q is determined, a signal of repeating c-bit data is received to evaluate whether there is a paging indication. If the paging indication exists, then the S-CCPCH channel is used for reading the paging message.

c is determined by the system, and the UE and the network keep the same algorithm, namely Np adjustment or c adjustment is the same as the network, namely the second example and the third example. Once the system selects a particular method, the network and the UE both use the same Np and c.

Further, before 200 in the fourth embodiment, the method further includes:

Specifically, when N is set to 2, SF is set to 128; alternatively, when N is set to 4, SF is set to 64.

Optionally, on the basis of the fourth embodiment and each possible implementation manner, before 200 in the fourth embodiment, the method further includes:

keeping the spreading factor SF of the paging indication channel PICH unchanged, changing the modulation mode from the QPSK signal to the 16QAM or 64QAM to offset the extension of the paging cycle by the time slot expansion. S-UMTS the same method is used by the network and the UE if the SF of the PICH is to be changed. I.e., the method of example one.

Preferably, on the basis of the fourth embodiment and each possible implementation manner, before 200 in the fourth embodiment, the method further includes:

Specifically, as can be seen from the second embodiment, when the Np is kept unchanged and the repetition number value corresponding to each Np is modified, the method may specifically include: if Np is 18, adjusting the number of iterations corresponding to Np to 8; or if Np is 36, adjusting the repetition number value corresponding to Np to 4; or if Np is 72, adjusting the value of the number of times of repetition corresponding to Np to 2; or if Np is 144, the repetition number corresponding to Np is adjusted to 1.

As can be seen from the third embodiment, the modifying Np while keeping the repeat number value corresponding to the number of paging indicators unchanged specifically includes: n is 2, Np is set to be 9 or 18 or 36 or 72; alternatively, if N is 4, Np is set to 4 or 8 or 16 or 32.

Fig. 4 is a schematic signaling interaction diagram of a cell paging method according to a fifth embodiment of the present invention, and as shown in fig. 4, an interaction between a network element device and a UE includes the following contents:

300. the network element equipment determines the first paging occasion and the position of the first paging indication.

Specifically, refer to step 101 and step 102 in the first embodiment, which are not described herein again.

301. And the network element equipment sends a wireless frame to the user equipment UE for paging in the PICH channel.

Specifically, the radio frame includes a first paging indicator.

302. The UE detects a first paging indication of a corresponding position at a first paging occasion of a PICH channel.

303, if the paging indication is obtained, the UE reads the paging message from the S-CCPCH channel.

Fig. 5 is a schematic structural diagram of a cell paging device according to a sixth embodiment of the present invention, and as shown in fig. 5, the cell paging device includes: a paging occasion determining module 10, a paging indication position determining module 11, and a sending module 12.

A paging occasion determining module 10, configured to determine a first paging occasion, so that a first paging occasion calculated by a first system is consistent with a second paging occasion calculated by a second system in interval, where a radio frame of the first system is nx10 ms, a radio frame of the second system is 10ms, and N is a positive integer.

Specifically, the first system is S-UMTS and the second system is UMTS.

A paging indication position determining module 11, configured to determine a position of the first paging indication, so that the position of the first paging indication is within the first 10ms of a radio frame of the S-UMTS, so as to counteract extension of a paging cycle by slot spreading;

a sending module 12, configured to send a wireless frame to the UE for paging.

The cell paging device provided by the embodiment determines the first paging occasion through the paging occasion determining module, so that the interval between the first paging occasion calculated by the S-UMTS and the interval between the second paging occasion calculated by the UMTS are consistent, determines the position of the first paging indication through the paging indication position determining module, enables the position of the first paging indication to be within the first 10ms of the radio frame of the S-UMTS, and counteracts the extension of the paging interval time caused by the time slot extension, and avoids the extension of the paging cycle caused by setting the paging position in the whole radio frame, further, sends the radio frame containing the paging indication to the UE for paging through the sending module, reduces the period of detecting the paging occasion by the UE, and further reduces the power consumption of the UE.

Further, the paging occasion determining module 10 determines the first paging occasion by using the following formula:

first paging occasion = f₁Discontinuous reception cycle length DRXCylelen of (IMSI) + n × S-UMTSgth;

Further, since the radio frame of the S-UMTS is extended, so that after the first paging occasion is determined, the first paging occasion is also extended, in order to reduce the time interval of the first paging occasion, the following paging occasion determining module 10 may further process the first paging occasion through two possible implementation manners:

first, the paging occasion determining module 10 is configured to set drxcyclength of the S-UMTS to be equal to drxcyclength of the UMTS, and after detecting the first paging occasion, further includes:

the first method is as follows:

the paging occasion determining module 10 is further configured to divide the first paging occasion by N and get the whole;

alternatively, the second mode:

the paging occasion determining module 10 is further configured to set DRXCycleLength of the S-UMTS to be one N times of DRXCycleLength of the UMTS.

Further, the paging indicator position determination module 11 determines the position of the first paging indicator by the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

On the basis of fig. 5, fig. 6 is a schematic structural diagram of a cell paging apparatus according to a seventh embodiment of the present invention, as shown in fig. 6, the cell paging apparatus further includes: and a processing module 13.

And a processing module 13, configured to reduce the spreading factor SF according to the size of N, so as to offset the extension of the paging cycle by the timeslot expansion.

Specifically, the processing module 13 is specifically configured to, when N is set to 2, set SF to 128; alternatively, when N is set to 4, SF is set to 64.

Optionally, the processing module 13 is further configured to keep the spreading factor SF of the paging indicator channel PICH unchanged, and change the modulation scheme from QPSK to 16QAM (quadrature amplitude modulation) or 64QAM (octal quadrature amplitude modulation) to offset the extension of the paging cycle by the timeslot expansion.

Further, the processing module 13 is further configured to keep Np unchanged, and modify a repetition number value corresponding to each Np; or, the Np is modified while keeping the value of the repetition number corresponding to the Np unchanged.

Specifically, as can be seen from the second embodiment, the processing module 13 is specifically configured to adjust the repetition number value corresponding to Np to 8 if Np is 18; or if Np is 36, adjusting the repetition number value corresponding to Np to 4; or if Np is 72, adjusting the value of the number of times of repetition corresponding to Np to 2; or if Np is 144, the repetition number corresponding to Np is adjusted to 1.

Referring to the third embodiment, if the processing module 13 is specifically configured to set N to 2, Np is set to 9 or 18 or 36 or 72; alternatively, if N is 4, Np is set to 4 or 8 or 16 or 32.

Fig. 7 is a schematic structural diagram of user equipment UE according to an eighth embodiment of the present invention, and as shown in fig. 7, the user equipment UE includes: a receiving module 20 and a detecting module 21.

A receiving module 20, configured to receive, at a first paging occasion, a radio frame sent by a network element device.

The interval of the first paging occasion calculated by the first system is consistent with the interval of the second paging occasion calculated by the second system, the wireless frame of the first system is N multiplied by 10ms, the wireless frame of the second system is 10ms, and N is a positive integer.

Specifically, the first system is S-UMTS and the second system is UMTS. It should be noted that the above "coincidence" means the same order of magnitude, i.e. falling within the interval: [2^t-2^t+1) T =1, 2, 3 … for one radio frame length. For example, the UMTS paging occasion interval is 320ms, which falls within the interval [2 ]⁵-2⁶) 10ms, where t = 5; if the paging occasion interval of S-UMTS is 340ms, the interval is also [2 ]⁴-2⁵）*20=[2^5-2⁶]10ms, they are considered herein to be consistent.

The detecting module 21 is configured to detect the first paging indicator at a corresponding location within 10ms before the radio frame.

The detecting module 21 is further configured to read a paging message on the relevant channel if the first paging indicator is detected.

In the UE provided in this embodiment, the receiving module receives the radio frame sent by the network element device at the first paging occasion, and the detecting module detects the first paging indicator at the corresponding position in the first 10ms of the radio frame, where the first paging occasion calculated by the S-UMTS is consistent with the second paging occasion calculated by the UMTS, and the detecting module detects the position of the first paging indicator within the first 10ms of the radio frame of the S-UMTS, so as to reduce the extension of the period of the S-UMTS for detecting the paging occasion by the UE due to the lengthening of the radio frame, and further reduce the power consumption of the UE.

Further, the detecting module 21 determines the first paging occasion according to the following formula:

Further, on the basis of fig. 7, fig. 8 is a schematic structural diagram of a user equipment UE according to a ninth embodiment of the present invention, and as shown in fig. 8, the user equipment UE further includes: a processing module 22. Since the radio frame of the S-UMTS is extended, so that after the first paging occasion is determined, the first paging occasion is also extended, and in order to reduce the time interval of the first paging occasion, the following processing module 22 may further process the first paging occasion in two possible implementations:

first, the processing module 22 is configured to set DRXCycleLength of the S-UMTS to be equal to DRXCycleLength of the UMTS, and after detecting the first paging occasion, further includes:

the first method is as follows:

the processing module 22 is further configured to divide the first paging occasion by N and round;

alternatively, the second mode:

the processing module 22 is further configured to set DRXCycleLength of the S-UMTS to be one N times of DRXCycleLength of the UMTS.

Further, the detecting module 21 detects the first paging indicator of the corresponding location by the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

wherein q is the position of the first paging indicator, SFN is the system frame number of S-UMTS, Np is the number of the first paging indicators of each radio frame, f₄(IMSI) is a function of the input parameter IMSI, f₄(IMSI) for randomly allocating user Equipment UE to different paging groups based on IMSI, f₂(SFN) ofThe input parameter being a function of SFN, f₃(Np) is a function with an input parameter Np, f₂(SFN) and f₃(Np) is used to uniformly set the location of UE paging.

Further, the processing module 22 is further configured to reduce the spreading factor SF according to the size of N to offset the extension of the paging cycle by the timeslot spreading.

Specifically, the processing module 22 is specifically configured to set SF to 128 when N is set to 2; alternatively, when N is set to 4, SF is set to 64.

Optionally, the processing module 22 is further configured to keep the spreading factor SF of the paging indicator channel PICH unchanged, and change the modulation scheme from QPSK to 16QAM or 64QAM to counteract the extension of the paging cycle due to the timeslot expansion. S-UMTS the same method is used by the network and the UE if the SF of the PICH is to be changed. I.e., the method of example one.

Further, the processing module 22 is further configured to keep Np unchanged, and modify a repetition number value corresponding to each Np; or, the Np is modified while keeping the value of the repetition number corresponding to the Np unchanged.

Specifically, referring to the second embodiment, the processing module 22 is specifically configured to adjust the repetition number value corresponding to Np to be 8 if Np is 18; or if Np is 36, adjusting the repetition number value corresponding to Np to 4; or if Np is 72, adjusting the value of the number of times of repetition corresponding to Np to 2; or if Np is 144, the repetition number corresponding to Np is adjusted to 1.

Referring to the third embodiment, if the processing module 22 is specifically configured to set N to 2, Np is set to 9 or 18 or 36 or 72; n is 4, Np is set to 4 or 8 or 16 or 32.

A scalable universal mobile telecommunications system, S-UMTS, the S-UMTS of this embodiment comprising: a cell paging device and user equipment UE, wherein the cell paging device employs the structures of fig. 5 and fig. 6, and can execute the first embodiment of the cell paging method and the technical solutions of various feasible implementation manners thereof; the user equipment UE, using the structures in fig. 7 and fig. 8, may implement the second method embodiment of cell paging and various feasible implementation manners of the second method embodiment of the present invention, which have similar implementation principles and technical effects and are not described herein again.

Fig. 9 is a schematic structural diagram of a cell paging apparatus according to a tenth embodiment of the present invention, and as shown in fig. 9, the cell paging apparatus includes: a processor 30, a transmitter 31.

The processor 30 is configured to determine a first paging occasion so that a first paging occasion calculated by the first system and a second paging occasion calculated by the second system are consistent with each other, where a radio frame of the first system is N × 10ms, a radio frame of the second system is 10ms, and N is a positive integer.

Specifically, the first system is S-UMTS and the second system is UMTS.

A processor 30, further configured to determine a location of the first paging indicator such that the location of the first paging indicator is within the first 10ms of a radio frame of the S-UMTS to counteract an extension of the paging cycle by slot spreading;

and a transmitter 31, configured to transmit a radio frame to the UE for paging.

The cell paging device provided by the embodiment determines the first paging occasion through the processor, so that the interval between the first paging occasion calculated by the S-UMTS and the interval between the second paging occasion calculated by the UMTS are consistent, determines the position of the first paging indication through the processor, enables the position of the first paging indication to be within the first 10ms of a radio frame of the S-UMTS, and counteracts the extension of the paging interval time caused by the time slot expansion, and avoids the extension of the paging cycle caused by setting the paging position in the whole radio frame.

Further, the processor 30 determines the first paging occasion by specifically using the following formula:

first, the processor 30 is further configured to set DRXCycleLength of the S-UMTS to be equal to DRXCycleLength of the UMTS, and after detecting the first paging occasion, the method further includes:

the first method is as follows:

the processor 30 is further configured to divide the first paging occasion by N and round;

alternatively, the second mode:

the processor 30 is further configured to set the DRXCycleLength of the S-UMTS to be one N times the DRXCycleLength of the UMTS.

Further, processor 30 determines the location of the first paging indicator by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

Further, the processor 30 is configured to decrease the spreading factor SF according to the size of N to counteract the extension of the paging cycle by the slot spreading.

Specifically, processor 30 is specifically configured to, when N is set to 2, set SF to 128; alternatively, when N is set to 4, SF is set to 64.

Optionally, the processor 30 is further configured to keep the spreading factor SF of the paging indicator channel PICH unchanged, and change the modulation scheme from QPSK to 16QAM (quadrature amplitude modulation) or 64QAM (octal quadrature amplitude modulation) to counteract the extension of the paging cycle by the slot spreading.

Further, the processor 30 is further configured to keep Np unchanged, and modify a repetition number value corresponding to each Np; or, the Np is modified while keeping the value of the repetition number corresponding to the Np unchanged.

Specifically, referring to the second embodiment, if the processor 30 is specifically configured to adjust Np to 18, the repeat number corresponding to Np is adjusted to 8; or if Np is 36, adjusting the repetition number value corresponding to Np to 4; or if Np is 72, adjusting the value of the number of times of repetition corresponding to Np to 2; or if Np is 144, the repetition number corresponding to Np is adjusted to 1.

Referring to the third embodiment, if the processor 30 is specifically configured to set N to 2, Np is set to 9 or 18 or 36 or 72; alternatively, if N is 4, Np is set to 4 or 8 or 16 or 32.

Fig. 10 is a schematic structural diagram of user equipment UE according to an eleventh embodiment of the present invention, and as shown in fig. 10, the user equipment UE includes: receiver 40, processor 41.

And the receiver 40 is configured to receive the radio frame sent by the network element device at the first paging occasion.

A processor 41 configured to detect the first paging indicator at a corresponding location within 10ms before the radio frame.

The processor 41 is further configured to read a paging message on the relevant channel if the first paging indicator is detected.

In the UE provided in this embodiment, the receiver receives the radio frame sent by the network element device at the first paging occasion, and the processor detects the first paging indicator at the corresponding position within the first 10ms of the radio frame, where the interval between the first paging occasion calculated by the S-UMTS and the second paging occasion calculated by the UMTS is consistent, and then the processor detects the position of the first paging indicator within the first 10ms of the radio frame of the S-UMTS, so as to reduce the extension of the period of the S-UMTS for detecting the paging occasion by the UE due to the lengthening of the radio frame, and further reduce the power consumption of the UE.

Further, processor 41 determines the first paging occasion by:

Further, since the radio frame of the S-UMTS is extended, so that the first paging occasion is extended after the first paging occasion is determined, in order to reduce the time interval of the first paging occasion, the following processor 41 may further process the first paging occasion in two possible implementations:

first, the processor 41 is further configured to set DRXCycleLength of the S-UMTS to be equal to DRXCycleLength of the UMTS, and after detecting the first paging occasion, further includes:

the first method is as follows:

processor 41, further configured to divide the first paging occasion by N and round;

alternatively, the second mode:

the processor 41 is further configured to set DRXCycleLength of the S-UMTS to be one N times lower than DRXCycleLength of the UMTS.

Further, processor 41 detects the first paging indicator for the corresponding location by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

wherein q is the position of the first paging indicator, SFN is the system frame number of S-UMTS, Np is the number of the first paging indicators of each radio frame, f₄(IMSI) is an inputThe parameter is a function of the IMSI, f₄(IMSI) for randomly allocating user Equipment UE to different paging groups based on IMSI, f₂(SFN) is a function of the input parameter as SFN, f₃(Np) is a function with an input parameter Np, f₂(SFN) and f₃(Np) is used to uniformly set the location of UE paging.

Further, processor 41 is configured to decrease spreading factor SF according to the size of N to offset the extension of the paging cycle by the slot spreading.

Specifically, the processor 41 is specifically configured to set SF to 128 when N is set to 2; alternatively, when N is set to 4, SF is set to 64.

Optionally, the processor 41 is further configured to keep the spreading factor SF of the paging indicator channel PICH unchanged, and change the modulation scheme from QPSK to 16QAM or 64QAM to counteract the extension of the paging cycle by the slot spreading. S-UMTS the same method is used by the network and the UE if the SF of the PICH is to be changed. I.e., the method of example one.

Further, the processor 41 is further configured to keep Np unchanged, and modify a repetition number value corresponding to each Np; or, the Np is modified while keeping the value of the repetition number corresponding to the Np unchanged.

Specifically, referring to the second embodiment, if the processor 41 is specifically configured to adjust Np to 18, the repeat number corresponding to Np is adjusted to 8; or if Np is 36, adjusting the repetition number value corresponding to Np to 4; or if Np is 72, adjusting the value of the number of times of repetition corresponding to Np to 2; or if Np is 144, the repetition number corresponding to Np is adjusted to 1.

Referring to the third embodiment, if the processor 41 is specifically configured to set N to 2, Np is set to 9 or 18 or 36 or 72; n is 4, Np is set to 4 or 8 or 16 or 32.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for cell paging, comprising:

and sending the wireless frame to User Equipment (UE) for paging.

2. The method of cell paging according to claim 1, wherein the determining the first paging occasion such that the first paging occasion calculated by the first system and the second paging occasion calculated by the second system are spaced in unison comprises:

determining the first paging occasion by:

3. The method of cell paging according to claim 2, wherein the DRXCycleLength of the first system is equal to the DRXCycleLength of the second system, and wherein the determining the first paging occasion further comprises:

dividing the first paging occasion by the N and rounding;

or,

4. The method of any of claims 1-3, wherein the determining the location of the first paging indicator such that the location of the first paging indicator is within the first 10ms of a radio frame of the first system to counteract the extension of the paging cycle by the slot spread comprises:

determining the location of the first paging indicator by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

5. The method of cell paging according to any one of claims 1 to 4, further comprising, before determining the first paging occasion such that the first paging occasion calculated by the first system and the second paging occasion calculated by the second system are spaced in agreement:

6. The method of cell paging according to claim 5, wherein the reducing a Spreading Factor (SF) according to the size of the N comprises:

when the N is set to 2, the SF is set to 128; or,

when the N is set to 4, the SF is set to 64.

7. The method of cell paging according to any one of claims 1 to 4, further comprising, before determining the first paging occasion such that the first paging occasion calculated by the first system and the second paging occasion calculated by the second system are spaced in agreement:

8. The method of cell paging according to any one of claims 1 to 4, further comprising, before determining the first paging occasion such that the first paging occasion calculated by the first system and the second paging occasion calculated by the second system are spaced in agreement:

9. The method of claim 8, wherein the step of modifying the value of the number of repetitions for each Np while keeping Np constant comprises:

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

10. The method of claim 8, wherein the step of modifying the Np while keeping the value of the number of repetitions corresponding to the number of paging indicators unchanged comprises:

if N is 2, setting Np to be 9 or 18 or 36 or 72;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

11. A method for cell paging, comprising:

12. The method of claim 11, wherein the receiving, at the first paging occasion, the radio frame sent by the network element equipment comprises:

detecting the first paging occasion by:

13. The method of claim 12, wherein the drxcyclength of the first system is equal to the drxcyclength of the second system, and wherein the method further comprises, before receiving the radio frame transmitted by the network element device at the first paging occasion:

dividing the first paging occasion by the N and rounding;

or,

14. The method of any of claims 11 to 13, wherein the detecting the first paging indicator at a corresponding location within 10ms before the radio frame comprises:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

15. The method of cell paging according to any one of claims 11 to 14, wherein before the receiving the radio frame sent by the network element device at the first paging occasion, the method further comprises:

16. The method of cell paging according to claim 15, wherein the reducing a spreading factor SF according to the size of N comprises:

when the N is set to 2, the SF is set to 128; or,

when the N is set to 4, the SF is set to 64.

17. The method of cell paging according to any one of claims 11 to 14, wherein before the receiving the radio frame sent by the network element device at the first paging occasion, the method further comprises:

18. The method of cell paging according to any one of claims 11 to 14, wherein before the receiving the radio frame sent by the network element device at the first paging occasion, the method further comprises:

19. The method of claim 18, wherein the step of modifying the value of the number of repetitions for each Np while keeping Np constant comprises:

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

20. The method of claim 18, wherein the step of modifying the Np while keeping the value of the number of repetitions corresponding to the number of paging indicators unchanged comprises:

if N is 2, setting Np to be 9 or 18 or 36 or 72;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

21. An apparatus for cell paging, comprising:

22. The cell paging device as claimed in claim 21, wherein the paging occasion determining module determines the first paging occasion by the following formula:

23. The cell paging device as claimed in claim 22, wherein the paging occasion determining module is configured to set DRXCycleLength of the first system to be equal to DRXCycleLength of the second system, and further comprising, after detecting the first paging occasion:

or,

24. The cell paging device as claimed in any one of claims 21 to 23, wherein the paging indicator position determining module determines the position of the first paging indicator by the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

25. The cell paging device according to any one of claims 21 to 24, further comprising:

26. The cell paging device as claimed in claim 25, wherein the processing module is specifically configured to, when the N is set to 2, set the SF to 128; or,

when the N is set to 4, the SF is set to 64.

27. The cell paging device according to any one of claims 21 to 24, wherein the processing module is further configured to keep a spreading factor SF of a paging indicator channel PICH unchanged, and change a modulation scheme from QPSK to 16QAM or 64QAM to counteract the extension of a paging cycle by slot spreading.

28. The device according to any of claims 21-24, wherein the processing module is further configured to keep the Np unchanged, and modify a repetition value corresponding to each Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

29. The cell paging device as claimed in claim 28, wherein the processing module is configured to, if Np is 18, adjust the number of repetitions corresponding to Np to 8; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

30. The cell paging device according to claim 28, wherein the processing module is configured to set Np to 9 or 18 or 36 or 72 if N is 2;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

31. A User Equipment (UE), comprising:

32. The UE of claim 31, wherein the detection module detects the first paging occasion by:

33. The UE of claim 32, further comprising:

or,

34. The UE of any of claims 31 to 33, wherein the detecting module detects the location of the first paging indicator by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

wherein q is the location of the first paging indicator, SFN is the system frame number of S-UMTS, Np is the number of the first paging indicators per radio frame, and f is the number of the first paging indicators per radio frame₄(IMSI) is a function of an input parameter being said IMSI, said f₄(IMSI) for randomly allocating user Equipment UE to different subscribers depending on said IMSIWithin the paging group of, the f₂(SFN) is a function of the input parameter as the SFN, f₃(Np) is a function of an input parameter being said Np, said f₂(SFN) with said f₃(Np) for uniformly setting locations for paging of the UE.

35. The UE of any one of claims 31 to 34, wherein the processing module is further configured to reduce a spreading factor SF according to the size of N to offset the extension of the paging cycle by the slot spreading.

36. The UE of claim 35, wherein the processing module is specifically configured to set the SF to 128 when the N is set to 2; or,

when the N is set to 4, the SF is set to 64.

37. The UE of any of claims 31 to 34, wherein the processing module is further configured to change the modulation scheme from QPSK to 16QAM or 64QAM to counteract the extension of the paging cycle by slot spreading, while keeping the spreading factor SF of the paging indicator channel PICH unchanged.

38. The UE of any one of claims 31 to 34, wherein the processing module is further configured to keep the Np unchanged, and modify a repetition value corresponding to each Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

39. The UE of claim 38, wherein the processing module is specifically configured to adjust the repetition number value corresponding to Np to 8 if Np is 18; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

40. The UE of claim 38, wherein the processing module, in particular for if N is 2, sets Np to 9 or 18 or 36 or 72;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

41. A scalable universal mobile telecommunications system, S-UMTS, system, comprising: the cell paging device according to any one of claims 21 to 30, the user equipment UE according to any one of claims 31 to 40.

42. An apparatus for cell paging, comprising:

43. The cell paging device as claimed in claim 42, wherein the processor determines the first paging occasion by specifically using the following formula:

wherein,the IMSI is an international mobile subscriber identity, and f₁The (IMSI) is a function with an input parameter of the IMSI and an output value smaller than the DRXCycleLength of the first system, where n is an integer and has a value ranging from 0 to the maximum frame number of the scalable universal mobile telecommunications system S-UMTS.

44. The cell paging device as claimed in claim 43, wherein the processor is further configured to set DRXCycleLength of the first system to be equal to DRXCycleLength of the second system, and further comprising, after detecting the first paging occasion:

or,

45. The cell paging device as claimed in any one of claims 42 to 44, wherein the processor determines the location of the first paging indicator by the following formula:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

46. The cell paging device as claimed in any one of claims 42 to 45, wherein the processor is further configured to reduce the spreading factor SF according to the magnitude of N to offset the extension of the paging cycle by the slot spreading.

47. The cell paging device as claimed in claim 46, wherein the processor is specifically configured to, when the N is set to 2, set the SF to 128; or,

when the N is set to 4, the SF is set to 64.

48. The cell paging device as claimed in any one of claims 42 to 45, wherein the processor is further configured to change the modulation scheme from QPSK (quadrature phase shift keying) to 16QAM or 64QAM, while keeping the spreading factor SF of the PICH (paging indicator channel) unchanged, to counteract the extension of the paging cycle by the slot spreading.

49. The cell paging device as claimed in any one of claims 42 to 45, wherein the processor is further configured to maintain the Np unchanged, and modify a repetition value corresponding to each of the Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

50. The cell paging device as claimed in claim 49, wherein the processor is configured to, if Np is 18, adjust the number of repetitions corresponding to Np to 8; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

51. The cell paging device as claimed in claim 50, wherein the processor, specifically configured to set the Np to 9 or 18 or 36 or 72 if the N is 2;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.

52. A User Equipment (UE), comprising:

53. The UE of claim 52, wherein the processor detects the first paging occasion by:

54. The UE of claim 52, wherein the UE, the processor, is further configured to set a DRXCycleLength of the first system to be equal to a DRXCycleLength of the second system, and wherein after detecting the first paging occasion, the UE further comprises:

or,

55. The UE of any of claims 52 to 54, wherein the processor is configured to detect the location of the first paging indicator by:

q=(f₄（IMSI）+f₂（SFN）)modf₃（Np）；

56. The UE of any of claims 52 to 54, wherein the processor is further configured to reduce a Spreading Factor (SF) according to the size of the N to counteract the lengthening of the paging cycle by the slot spreading.

57. The UE of claim 56, wherein the processor is configured to, when the N is set to 2, set the SF to 128; or,

when the N is set to 4, the SF is set to 64.

58. The UE of any of claims 52 to 54, wherein the processor is further configured to change the modulation scheme from QPSK (quadrature phase shift keying) to 16QAM or 64QAM, keeping the spreading factor SF constant, to counteract the extension of the paging cycle by slot spreading.

59. The UE of any one of claims 52 to 54, wherein the processor is further configured to keep the Np unchanged, and modify a repetition value corresponding to each of the Np; or, modifying the Np while keeping the repeat number value corresponding to the Np unchanged.

60. The UE of claim 59, wherein the processor, specifically configured to adjust the number of repetitions corresponding to Np to 8 if Np is 18; or,

if Np is 144, the repeat number corresponding to Np is adjusted to 1.

61. The UE of claim 60, wherein the processor, in particular for the case where N is 2, sets Np to 9 or 18 or 36 or 72;

and if N is 4, setting Np to be 4 or 8 or 16 or 32.