CN107613562B - Paging method and device - Google Patents
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- CN107613562B CN107613562B CN201610548963.4A CN201610548963A CN107613562B CN 107613562 B CN107613562 B CN 107613562B CN 201610548963 A CN201610548963 A CN 201610548963A CN 107613562 B CN107613562 B CN 107613562B
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Abstract
The embodiment of the invention discloses a paging method and a device, wherein the method comprises the following steps: when determining to send a Paging message to target User Equipment (UE), a base station eNB acquires a target coverage level corresponding to a target equipment identifier of the target UE according to a pre-stored correspondence between the equipment identifier and the coverage level; the eNB determines a target paging strategy corresponding to the target coverage level according to a corresponding relation between the pre-stored coverage level and the paging strategy; and the eNB sends a Paging message to the target UE according to the target Paging strategy.
Description
Technical Field
The invention relates to a paging technology in the field of communication of the Internet of things, in particular to a paging method and a paging device.
Background
The Narrow-Band Internet of Things (NB-IOT) based on cellular is an emerging technology in the field of Internet of Things (IOT), and is also called Low power Wide Area Network (LPWA) because NB-IOT can support cellular data connection of Low power devices in a Wide Area Network.
In order to meet the requirements of large user quantity, low throughput and the like, data transmission in the NB-IOT system can be divided into two modes: a Control Plane Mode (Control Plane Mode) and a User Plane Mode (User Plane Mode). In the control plane mode, uplink and downlink Data are carried in a Non-Access Stratum Protocol Data Unit (NAS PDU) of a signaling for transmission, and after UE is accessed, only a Signaling Radio Bearer (SRB) is established, and a Data Radio Bearer (DRB) is not established; in the UP Mode, a conventional DRB user plane Mode is used for uplink and downlink data transmission, and after UE accesses, a DRB needs to be established in addition to an SRB.
In the NB-IOT system, the network may transmit a Paging (Paging) request message to a UE in an IDLE state (RRC _ IDLE) or a CONNECTED state (RRC _ CONNECTED). Specifically, the paging procedure may be triggered by a Mobility Management Entity (MME) in the core network, or may be triggered by the base station eNB. In the NB-IOT system, the main roles of paging are: 1) sending a call request to the UE in an RRC _ IDLE state; 2) and informing the UE that the system information is changed. Therefore, paging is very important in an NB-IOT system, is an important way for UE to acquire system information, and can ensure timely transmission of effective information between the UE and eNB and MME only on the basis of accurately acquiring the system information.
Considering the application scope of the NB-IOT system, the biggest characteristics of the user equipment (NB-UE) in the NB-IOT system are as follows: low power consumption and wide connection. The application scenarios of the NB-UE are different, and the coverage of the network to the NB-UE is divided into the following three levels: normal coverage, enhanced coverage, and extreme coverage. In the existing NB-IOT system, no matter whether normal coverage, enhanced coverage or extreme coverage is used, if the target UE does not initiate the random access procedure within a preset time period, the eNB sends a Paging message to the target UE according to the preset Paging power until the predetermined maximum Paging frequency is reached.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
in the existing NB-IOT system, regardless of normal coverage, enhanced coverage or extreme coverage, if the target UE does not initiate the random access procedure within a preset time period, the eNB generally sends the Paging message to the target UE multiple times according to a preset initial Paging power combined with a preset step value of power increase until the target UE initiates the random access procedure, or until a predetermined maximum number of Paging times is reached. Thus, repeatedly sending Paging messages for many times means that the NB-UE needs to continuously try to receive the Paging messages, which inevitably causes excessive power consumption of the NB-UE and cannot achieve the purpose of saving energy for the NB-UE.
Disclosure of Invention
In order to solve the existing technical problem, embodiments of the present invention provide a paging method and apparatus, which can not only wake up a target UE quickly and improve the success rate of paging the target UE, but also save the power consumption of the target UE, thereby achieving the purpose of saving energy for the target UE.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a paging method, which comprises the following steps:
when the Paging message is determined to be sent to the target user equipment UE, acquiring a target coverage level corresponding to the target equipment identifier of the target UE according to a pre-stored corresponding relation between the equipment identifier and the coverage level;
determining a target paging strategy corresponding to the target coverage level according to a corresponding relation between a pre-stored coverage level and a paging strategy;
and sending the Paging message to the target UE according to the target Paging strategy.
In the above embodiment, before the determining to send the Paging message to the target user equipment UE, the method further includes:
acquiring a target equipment identifier and a target Reference Signal Received Power (RSRP) value reported by the target UE;
determining a target coverage level corresponding to the target RSRP value according to a predetermined corresponding relation between the RSRP range and the coverage level;
and storing the corresponding relation between the target equipment identification and the target coverage level.
In the above embodiment, before the determining to send the Paging message to the target user equipment UE, the method further includes:
acquiring a target equipment identifier and a target coverage level reported by the target UE;
and storing the corresponding relation between the target equipment identification and the target coverage level.
In the above embodiment, the sending the Paging message to the target UE according to the target Paging policy includes:
when the target coverage level is normal coverage, sending the Paging message to the target UE according to preset initial transmitting power;
before the target UE initiates a random access process, taking the initial transmission power as the current transmission power, and repeatedly executing the following operations:
increasing the current transmitting power by a preset step value, and calculating the target transmitting power for sending the Paging message to the target UE;
sending the Paging message to the target UE according to the target transmitting power;
and taking the target transmission power as the current transmission power, and returning to execute the above operations until the target UE initiates a random access process or until a predetermined first paging frequency is reached.
In the foregoing embodiment, the sending the Paging message to the target UE according to the target Paging policy includes:
when the target coverage level is enhanced coverage, sending the Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access process or a predetermined second Paging frequency is reached;
and when the target coverage level is extreme coverage, sending the Paging message to the target UE according to the maximum transmission power until the target UE initiates a random access process or until a predetermined third Paging frequency is reached.
The embodiment of the invention also provides a paging device, which comprises:
a first obtaining unit, configured to, when it is determined to send a Paging message to a target user equipment UE, obtain a target coverage level corresponding to a target equipment identifier of the target UE according to a correspondence between a pre-stored equipment identifier and the coverage level; sending the target coverage level to a first determining unit;
the first determining unit is used for determining a target paging strategy corresponding to the target coverage level according to a corresponding relation between a pre-stored coverage level and a paging strategy, and sending the target paging strategy to the paging unit;
and the Paging unit is configured to send the Paging message to the target UE according to the target Paging policy.
In the above embodiment, the apparatus further includes:
a second obtaining unit, configured to obtain a target device identifier and a target RSRP value reported by the target UE, and send the target device identifier and the target RSRP value to the first storage unit and the second determining unit, respectively;
the second determining unit is configured to determine, according to a predetermined correspondence between an RSRP range and a coverage level, a target coverage level corresponding to the target RSRP value, and send the target coverage level to the first storing unit;
the first storage unit is configured to store a corresponding relationship between the target device identifier and the target coverage level, and send the corresponding relationship between the target device identifier and the target coverage level to the first obtaining unit.
In the above embodiment, the apparatus further includes:
a third obtaining unit, configured to obtain a target device identifier and a target coverage level reported by the target UE, and send the target device identifier and the target coverage level to the second storage unit;
the second storage unit is configured to store a corresponding relationship between the target device identifier and the target coverage level, and send the corresponding relationship between the target device identifier and the target coverage level to the first obtaining unit.
In the above embodiment, the paging unit includes:
a first Paging subunit, configured to send the Paging message to the target UE according to a preset initial transmission power when the target coverage level is normal coverage, and notify a second Paging subunit;
the second paging subunit is configured to, before the target UE initiates a random access procedure, repeatedly perform the following operations with an initial transmission power as a current transmission power: increasing the current transmitting power by a preset step value, and calculating the target transmitting power for sending the Paging message to the target UE; sending the Paging message to the target UE according to the target transmitting power; and taking the target transmission power as the current transmission power, and returning to execute the above operations until the target UE initiates a random access process or until a predetermined first paging frequency is reached.
In the foregoing embodiment, the Paging unit is specifically configured to, when the target coverage level is enhanced coverage, send the Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access procedure, or until a predetermined second Paging frequency is reached; and when the target coverage level is extreme coverage, sending the Paging message to the target UE according to the maximum transmission power until the target UE initiates a random access process or until a predetermined third Paging frequency is reached.
Therefore, in the technical solution of the embodiment of the present invention, when determining to send the Paging message to the target UE, the eNB first obtains the target coverage level corresponding to the target device identifier of the target UE according to the pre-stored correspondence between the device identifier and the coverage level, then the eNB determines the target Paging policy corresponding to the target coverage level according to the pre-stored correspondence between the coverage level and the Paging policy, and finally the eNB sends the Paging message to the target UE according to the target Paging policy. That is to say, in the technical solution proposed by the present invention, the eNB may determine a target Paging policy corresponding to a target coverage level according to a pre-stored correspondence between the coverage level and the Paging policy, and then send a Paging message to the target UE according to the target Paging policy. Namely: in the technical scheme of the invention, the eNB can adopt different Paging strategies to send the Paging message to the target UE aiming at different coverage levels, but the eNB does not consider the coverage level of the target UE like in the prior art, and if the target UE does not initiate a random access process within a preset time period, the eNB can send the Paging message to the target UE for multiple times according to a preset initial Paging power and a preset step value increased by power until the target UE initiates the random access process or until the preset maximum Paging frequency is reached. Obviously, compared with the prior art, the paging method and the paging device provided by the embodiment of the invention not only can rapidly wake up the target UE and improve the success rate of paging the target UE, but also can save the electric energy consumption of the target UE, thereby achieving the purpose of saving energy for the target UE; moreover, the method is simple and convenient to realize, convenient to popularize and wide in application range.
Drawings
Fig. 1 is a schematic flow chart illustrating a paging method according to an embodiment of the present invention;
FIG. 2 is a first schematic component diagram of a paging device in an embodiment of the present invention;
fig. 3 is a second constitutional structure of the paging device in the embodiment of the present invention.
Detailed Description
In various embodiments of the present invention, fig. 1 is a schematic flow chart illustrating an implementation process of a paging method in an embodiment of the present invention, and as shown in fig. 1, the paging method includes the following steps:
In a specific embodiment of the present invention, the network side may send a Paging message to the UE in the RRC _ IDLE state or the RRC _ CONNECTED state. Specifically, the paging procedure may be triggered by the MME in the core network, or may be triggered by the eNB; when the Paging process is triggered by the MME, the MME firstly sends a Paging message to the eNB through an S1 port, and then the eNB initiates Paging to the target UE on a Uu port according to the received Paging message. In this step, when the eNB determines to transmit the Paging message to the target UE, the eNB may obtain the target coverage level corresponding to the target device identifier of the target UE according to a pre-stored correspondence between the device identifier and the coverage level, for example, when the eNB determines to transmit the Paging message to the UE1, the eNB may obtain the target coverage level corresponding to the UE1 according to a pre-stored correspondence between the device identifier and the coverage level.
In a specific embodiment of the present invention, the coverage level may include: conventional coverage, enhanced coverage, and extreme coverage. In the area covered by the wireless signal, the wireless signal coverage is good, various medium-speed data services can be initiated outdoors, and various low-speed data services can be initiated indoors; in the area with enhanced coverage, the wireless signal coverage is general, various low-speed data services can be initiated outdoors, voice services can be initiated indoors, but the call success rate is low; in an extremely covered area, voice services can be initiated outdoors, but the call success rate is low, and various services cannot be initiated indoors basically.
Preferably, in an embodiment of the present invention, before acquiring the target coverage level corresponding to the target device identifier of the target UE, the eNB may further include the following steps:
step a, the eNB acquires a target equipment identifier and a target RSRP value reported by the target UE.
In a Long Term Evolution (LTE) network, mobility management includes: mobility management in RRC _ IDLE state and RRC _ CONNECTED state. Wherein the mobility management of the RRC _ IDLE state includes: cell selection and cell reselection; the mobility management of the RRC _ CONNECTED state includes: and (4) switching the cells. After the UE successfully resides in a cell, if connection with the current cell base station eNB is not initiated, the UE may start measurement of an RRC _ IDLE state to obtain signal qualities of the current cell and neighboring cells, and if the quality of a wireless signal of the current cell is poor and the quality of a wireless signal of a neighboring cell is good, the UE may reselect to the neighboring cell with good signal quality.
In a specific embodiment of the present invention, the target RSRP refers to a measurement value of reference signal received power of a current cell in which the target UE is located. In this step, after the target UE completes the measurement of the current cell, the target UE may report the target device identifier and the target RSRP value to the eNB, so that the eNB may obtain the target device identifier and the target RSRP value reported by the target UE.
And b, the eNB determines a target coverage level corresponding to the target RSRP value according to the corresponding relation between the predetermined RSRP range and the coverage level.
In a specific embodiment of the present invention, the predetermined RSRP range includes: a first range, a second range, and a third range, corresponding to: extreme coverage, enhanced coverage, and regular coverage. In the first range: a first RSRP value < RSRP ═ a second RSRP value; in the second range: a second RSRP value < RSRP ═ a third RSRP value; in the third range: third RSRP value < RSRP < ═ fourth RSRP value. Specifically, the correspondence between the predetermined RSRP range and the coverage level may be as shown in table 1 below:
| RSRP Range | RSRP(dB) | Coverage level |
| First range | First RSRP value<RSRP value<Second RSRP value | Extreme coverage |
| Second range | Second RSRP value<RSRP value<Third RSRP value | Enhanced coverage |
| Third range | Third RSRP value<RSRP value<Fourth RSRP value | Conventional covering |
TABLE 1
The first RSRP value, the second RSRP value, the third RSRP value, and the fourth RSRP value in table 1 may be configured in advance according to NB-IOT system requirements or traffic requirements, and the first RSRP value, the second RSRP value, the third RSRP value, and the fourth RSRP value may be configured in order from low to high.
Preferably, in an embodiment of the present invention, the predetermined RSRP range and the coverage level may be as shown in the following table 2:
| RSRP Range | RSRP(dB) | Coverage level |
| First range | ＝-105<RSRP value<＝-95 | Extreme coverage |
| Second range | -95<RSRP value<＝-85 | Enhanced coverage |
| Third range | -85<RSRP value<＝-75 | Conventional covering |
TABLE 2
In this step, the eNB may determine a target coverage level corresponding to the target RSRP value according to a predetermined correspondence between the RSRP range and the coverage level. For example, when the eNB receives that the target RSRP value reported by the target UE is within the first range, it may be determined that the target coverage level corresponding to the target RSRP value is: extreme coverage; when the eNB receives that the target RSRP value reported by the target UE is within the second range, it may be determined that the target coverage level corresponding to the target RSRP value is: enhancing the coverage; when the eNB receives that the target RSRP value reported by the target UE is within the third range, it may be determined that the target coverage level corresponding to the target RSRP value is: and (5) conventional covering.
And step c, the eNB saves the corresponding relation between the target equipment identification and the target coverage level.
In this step, the eNB may store the correspondence between the target device identifier and the target coverage level when determining the target coverage level corresponding to the target RSRP value. For example, assuming that the eNB determines that the coverage level corresponding to the UE1 is normal coverage, in this step, the eNB may save the correspondence between the UE1 and the normal coverage.
Preferably, in the embodiment of the present invention, the target UE may also maintain a predetermined correspondence between the RSRP range and the coverage level. Specifically, the predetermined RSRP range includes: a first range, a second range, and a third range, corresponding to: extreme coverage, enhanced coverage, and regular coverage. In the first range: a first RSRP value < RSRP ═ a second RSRP value; in the second range: a second RSRP value < RSRP ═ a third RSRP value; in the third range: third RSRP value < RSRP < ═ fourth RSRP value. Preferably, after the target UE measures the RSRP value of the current cell, the target UE may determine a target coverage level corresponding to the target RSRP value according to a predetermined correspondence between an RSRP range and a coverage level, and then the target UE reports the target device identifier and the target coverage level to the eNB, so that the eNB may obtain the target device identifier and the target coverage level reported by the target UE, and thus the eNB may store the correspondence between the target device identifier and the target coverage level.
102, the eNB determines a target paging strategy corresponding to the target coverage level according to the corresponding relation between the pre-stored coverage level and the paging strategy.
In a specific embodiment of the present invention, the eNB may further store a correspondence between the coverage level and the paging policy in advance. In this step, the eNB may determine a target paging policy corresponding to the target coverage level according to a correspondence between the pre-stored coverage level and the paging policy. Specifically, the correspondence between the coverage level pre-stored by the eNB and the paging policy may be as shown in the following table 3:
TABLE 3
In the specific embodiment of the present invention, three paging strategies may be specified in advance, which are respectively: paging strategy 1, paging strategy 2 and paging strategy 3. Specifically, when the target coverage level is normal coverage, the eNB may determine the target paging policy corresponding to the target coverage level as: paging strategy 1; when the target coverage level is enhanced coverage, the eNB may determine that the target paging policy corresponding to the target coverage level is: paging strategy 2; when the target coverage level is extreme coverage, the eNB may determine that the target paging policy corresponding to the target coverage level is: paging strategy 3. In the Paging policy 1, the eNB may first send a Paging message to the target UE according to a preset initial transmission power, and before the target UE initiates the random access procedure, the eNB may repeatedly perform the following operations until the target UE initiates the random access procedure, or until a predetermined first Paging number is reached: and increasing the initial transmitting power by a preset step value, calculating the target transmitting power for transmitting the Paging message to the target UE, and transmitting the Paging message to the target UE by the eNB according to the target transmitting power. In Paging strategy 2, the eNB may send a Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access procedure, or until a predetermined second Paging number is reached. In Paging policy 3, the eNB may send a Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access procedure, or until a predetermined third Paging number is reached.
In an embodiment of the present invention, the first paging frequency, the second paging frequency, and the third paging frequency may be configured in advance by the eNB, where the third paging frequency may be the same as the second paging frequency, or may be different from the second paging frequency. Preferably, in the embodiment of the present invention, the third paging number may be set to be the same as the second paging number.
Preferably, in the embodiment of the present invention, the initial transmission power is smaller than the maximum transmission power; the first paging number is less than the second paging number.
And step 103, the eNB sends a Paging message to the target UE according to the target Paging strategy.
In a specific embodiment of the present invention, after the eNB determines the target Paging policy corresponding to the target coverage level, the eNB may send a Paging message to the target UE according to the target Paging policy. Specifically, when the target coverage level is normal coverage, the eNB may send a Paging message to the target UE according to Paging policy 1; when the target coverage level is enhanced coverage, the eNB may send a Paging message to the target UE according to the Paging policy 2; when the target coverage level is extreme coverage, the eNB may send a Paging message to the target UE according to Paging policy 3. Preferably, the eNB may send the Paging message to the target UE according to the Paging policy shown in table 4 below:
TABLE 4
Specifically, when the target coverage level is normal coverage, the eNB may first send a Paging message to the target UE according to a preset initial transmission power, and before the target UE initiates random access, the eNB may use the initial transmission power as a current transmission power, and repeatedly perform the following operations: increasing the initial transmitting power by a preset step value, calculating the target transmitting power for transmitting the Paging message to the target UE, and transmitting the Paging message to the target UE by the eNB according to the target transmitting power; and taking the target transmission power as the current transmission power, and returning to execute the above operations until the target UE initiates a random access process or until a predetermined first paging frequency is reached. Preferably, in paging policy 1, the preset step value may be 2dB, and the maximum number of paging times may be: 4.
when the target coverage level is enhanced coverage, the eNB may send a Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access procedure, or until a predetermined second Paging number is reached. Preferably, in paging policy 2, the second number of pages may be: 8.
when the target coverage level is extreme coverage, the eNB may send a Paging message to the target UE at the maximum transmit power until the target UE initiates a random access procedure, or until a predetermined third Paging number is reached. Preferably, in the paging policy 3, the third paging number may also be: 8.
in the Paging method provided by the embodiment of the present invention, the eNB may determine the target Paging policy corresponding to the target coverage level according to the pre-stored correspondence between the coverage level and the Paging policy, and then the eNB sends the Paging message to the target UE according to the target Paging policy. Namely: in the technical scheme of the invention, the eNB can adopt different Paging strategies to send the Paging message to the target UE aiming at different coverage levels, but the eNB does not consider the coverage level of the target UE like in the prior art, and if the target UE does not initiate a random access process within a preset time period, the eNB can send the Paging message to the target UE for multiple times according to a preset initial Paging power and a preset step value increased by power until the target UE initiates the random access process or until the preset maximum Paging frequency is reached. Obviously, compared with the prior art, the paging method provided by the embodiment of the invention not only can rapidly awaken the target UE and improve the success rate of paging the target UE, but also can save the electric energy consumption of the target UE, thereby achieving the purpose of saving energy for the target UE; moreover, the method is simple and convenient to realize, convenient to popularize and wide in application range.
Fig. 2 is a schematic diagram of a first component structure of a paging device in an embodiment of the present invention, and as shown in fig. 2, the paging device includes:
a first obtaining unit 201, configured to, when determining to send a Paging message to a target user equipment UE, obtain a target coverage level corresponding to a target equipment identifier of the target UE according to a correspondence between a pre-stored equipment identifier and the coverage level; sending the target coverage level to a first determining unit 202;
the first determining unit 202 is configured to determine, according to a correspondence between a pre-stored coverage level and a paging policy, a target paging policy corresponding to the target coverage level, and send the target paging policy to the paging unit 203;
the Paging unit 203 is configured to send the Paging message to the target UE according to the target Paging policy.
Fig. 3 is a schematic diagram of a second component structure of a paging device in an embodiment of the present invention, and as shown in fig. 3, the paging device further includes:
a second obtaining unit 204, configured to obtain a target device identifier and a target RSRP value reported by the target UE, and send the target device identifier and the target RSRP value to the first storage unit 205 and the second determining unit 206, respectively;
the second determining unit 206 is configured to determine, according to a predetermined correspondence between an RSRP range and a coverage level, a target coverage level corresponding to the target RSRP value, and send the target coverage level to the first storing unit 205;
the first storage unit 205 is configured to store a corresponding relationship between the target device identifier and the target coverage level, and send the corresponding relationship between the target device identifier and the target coverage level to the first obtaining unit 201.
Further, the apparatus further comprises:
a third obtaining unit 207, configured to obtain a target device identifier and a target coverage level reported by the target UE, and send the target device identifier and the target coverage level to the second storage unit 208;
the second storage unit 208 is configured to store a corresponding relationship between the target device identifier and the target coverage level, and send the corresponding relationship between the target device identifier and the target coverage level to the first obtaining unit 201.
Further, the paging unit 203 includes:
a first Paging subunit 2031, configured to send the Paging message to the target UE according to a preset initial transmission power when the target coverage level is normal coverage, and notify a second Paging subunit 2032;
the second paging subunit 2032, configured to, before the target UE initiates a random access procedure, take an initial transmission power as a current transmission power, and repeatedly perform the following operations: increasing the current transmitting power by a preset step value, and calculating the target transmitting power for sending the Paging message to the target UE; sending the Paging message to the target UE according to the target transmitting power; taking the target transmitting power as the current transmitting power, and returning to execute the operations until the target UE initiates a random access process or until a predetermined first paging frequency is reached;
the Paging unit 203 is specifically configured to, when the target coverage level is enhanced coverage, send the Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access procedure, or until a predetermined second Paging frequency is reached; and when the target coverage level is extreme coverage, sending the Paging message to the target UE according to the maximum transmission power until the target UE initiates a random access process or until a predetermined third Paging frequency is reached.
In practical applications, the first obtaining unit 201, the first determining unit 202, the paging unit 203, the second obtaining unit 204, the first storage unit 205, the second determining unit 206, the third obtaining unit 207, and the second storage unit 208 may be implemented by a Central Processing Unit (CPU), a microprocessor unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like located on the eNB.
The embodiment of the invention provides a Paging device, a determining unit can determine a target Paging strategy corresponding to a target coverage level according to a pre-stored corresponding relation between the coverage level and the Paging strategy, and then the Paging unit sends a Paging message to target UE according to the target Paging strategy. Namely: in the technical scheme of the invention, the eNB can adopt different Paging strategies to send the Paging message to the target UE aiming at different coverage levels, but the eNB does not consider the coverage level of the target UE like in the prior art, and if the target UE does not initiate a random access process within a preset time period, the eNB can send the Paging message to the target UE for multiple times according to a preset initial Paging power and a preset step value increased by power until the target UE initiates the random access process or until the preset maximum Paging frequency is reached. Obviously, compared with the prior art, the paging device provided by the embodiment of the invention not only can rapidly wake up the target UE and improve the success rate of paging the target UE, but also can save the electric energy consumption of the target UE, thereby achieving the purpose of saving energy for the target UE; moreover, the method is simple and convenient to realize, convenient to popularize and wide in application range.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (6)
1. A method of paging, the method comprising:
when a Paging message is determined to be sent to target User Equipment (UE), acquiring a target coverage level corresponding to a target equipment identifier of the target UE according to a pre-stored correspondence between the equipment identifier and the coverage level, wherein the coverage level is determined based on a measurement value of reference signal received power of a current cell in which the UE is located;
determining a target paging strategy corresponding to the target coverage level according to a corresponding relation between a pre-stored coverage level and a paging strategy;
sending the Paging message to the target UE according to the target Paging strategy;
the sending the Paging message to the target UE according to the target Paging policy includes:
when the target coverage level is normal coverage, sending the Paging message to the target UE according to preset initial transmitting power;
before the target UE initiates a random access process, taking the initial transmission power as the current transmission power, and repeatedly executing the following operations:
increasing the current transmitting power by a preset step value, and calculating the target transmitting power for sending the Paging message to the target UE;
sending the Paging message to the target UE according to the target transmitting power;
taking the target transmitting power as the current transmitting power, and returning to execute the operations until the target UE initiates a random access process or until a predetermined first paging frequency is reached;
when the target coverage level is enhanced coverage, sending the Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access process or a predetermined second Paging frequency is reached;
and when the target coverage level is extreme coverage, sending the Paging message to the target UE according to the maximum transmission power until the target UE initiates a random access process or until a predetermined third Paging frequency is reached.
2. The method of claim 1, wherein prior to the determining to send a Paging message to a target User Equipment (UE), the method further comprises:
acquiring a target equipment identifier and a target Reference Signal Received Power (RSRP) value reported by the target UE;
determining a target coverage level corresponding to the target RSRP value according to a predetermined corresponding relation between the RSRP range and the coverage level;
and storing the corresponding relation between the target equipment identification and the target coverage level.
3. The method of claim 1, wherein prior to the determining to send a Paging message to a target User Equipment (UE), the method further comprises:
acquiring a target equipment identifier and a target coverage level reported by the target UE;
and storing the corresponding relation between the target equipment identification and the target coverage level.
4. An apparatus for paging, the apparatus comprising:
a first obtaining unit, configured to, when it is determined to send a Paging message to a target user equipment UE, obtain a target coverage level corresponding to a target equipment identifier of the target UE according to a correspondence between a pre-stored equipment identifier and the coverage level; sending the target coverage level to a first determining unit, wherein the coverage level is determined based on a measurement value of reference signal received power of a current cell in which User Equipment (UE) is located;
the first determining unit is used for determining a target paging strategy corresponding to the target coverage level according to a corresponding relation between a pre-stored coverage level and a paging strategy, and sending the target paging strategy to the paging unit;
the Paging unit is configured to send the Paging message to the target UE according to the target Paging policy;
the paging unit includes:
a first Paging subunit, configured to send the Paging message to the target UE according to a preset initial transmission power when the target coverage level is normal coverage, and notify a second Paging subunit;
the second paging subunit is configured to, before the target UE initiates a random access procedure, repeatedly perform the following operations with an initial transmission power as a current transmission power: increasing the current transmitting power by a preset step value, and calculating the target transmitting power for sending the Paging message to the target UE; sending the Paging message to the target UE according to the target transmitting power; taking the target transmitting power as the current transmitting power, and returning to execute the operations until the target UE initiates a random access process or until a predetermined first paging frequency is reached;
the Paging unit is specifically configured to, when the target coverage level is enhanced coverage, send the Paging message to the target UE according to a preset maximum transmission power until the target UE initiates a random access procedure, or until a predetermined second Paging frequency is reached; and when the target coverage level is extreme coverage, sending the Paging message to the target UE according to the maximum transmission power until the target UE initiates a random access process or until a predetermined third Paging frequency is reached.
5. The apparatus of claim 4, further comprising:
a second obtaining unit, configured to obtain a target device identifier and a target RSRP value reported by the target UE, and send the target device identifier and the target RSRP value to the first storage unit and the second determining unit, respectively;
the second determining unit is configured to determine, according to a predetermined correspondence between an RSRP range and a coverage level, a target coverage level corresponding to the target RSRP value, and send the target coverage level to the first storing unit;
the first storage unit is configured to store a corresponding relationship between the target device identifier and the target coverage level, and send the corresponding relationship between the target device identifier and the target coverage level to the first obtaining unit.
6. The apparatus of claim 4, further comprising:
a third obtaining unit, configured to obtain a target device identifier and a target coverage level reported by the target UE, and send the target device identifier and the target coverage level to a second storage unit;
the second storage unit is configured to store the correspondence between the target device identifier and the target coverage level reported by the target UE, which is obtained by the third obtaining unit, and send the correspondence between the target device identifier and the target coverage level to the first obtaining unit.
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| WO2020061867A1 (en) * | 2018-09-26 | 2020-04-02 | 华为技术有限公司 | Data transmission method and apparatus |
| CN115278833A (en) * | 2021-04-30 | 2022-11-01 | 华为技术有限公司 | Paging method, communication device and system |
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