CN109495864B - Terminal speed measurement method and base station - Google Patents

Terminal speed measurement method and base station Download PDF

Info

Publication number
CN109495864B
CN109495864B CN201710751097.3A CN201710751097A CN109495864B CN 109495864 B CN109495864 B CN 109495864B CN 201710751097 A CN201710751097 A CN 201710751097A CN 109495864 B CN109495864 B CN 109495864B
Authority
CN
China
Prior art keywords
paging
emtc terminal
enb
time
emtc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710751097.3A
Other languages
Chinese (zh)
Other versions
CN109495864A (en
Inventor
李艳华
刘蓉
寇会如
李天宬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
Original Assignee
China Academy of Telecommunications Technology CATT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Priority to CN201710751097.3A priority Critical patent/CN109495864B/en
Publication of CN109495864A publication Critical patent/CN109495864A/en
Application granted granted Critical
Publication of CN109495864B publication Critical patent/CN109495864B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a terminal speed measurement method and a base station, which are used for realizing speed measurement of an eMTC terminal. The method comprises the following steps: the eNB receives a paging request message which is sent by a mobile management entity MME and aims at a machine type communication eMTC terminal; the paging request message carries paging auxiliary parameters, wherein the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eNB initiates paging again; the eNB pages the eMTC terminal according to the paging request message and determines a target cell corresponding to the eMTC when paging is successful; and the eNB determines the interval distance between the history cell and the target cell according to the paging auxiliary parameters, and determines the moving speed of the eMTC terminal according to the interval distance and the paging interval time.

Description

Terminal speed measurement method and base station
Technical Field
The invention relates to the technical field of communication, in particular to a terminal speed measurement method and a base station.
Background
In order to enable a User Equipment (UE) of the internet of things operating in an LTE (Long Term Evolution) network system to have a larger coverage and a lower acquisition cost, the 3GPP (3rd generation partnership Project) standards organization proposes an eMTC (enhanced machine type Communication) UE technology. Compared with other LTE user equipment, the eMTC user equipment (i.e., the eMTC terminal) transmits and receives using a downlink single antenna, which has loss in diversity gain, uplink transmission power, and the like, and has a relatively small coverage.
In order to ensure that eMTC user equipment at the edge of a cell of an LTE network can normally transmit and receive data, the coverage of an eMTC terminal can only be enhanced by a proper amount of repeated transmission, so as to make up for the loss of coverage. Therefore, for the requirement of coverage enhancement, the 3GPP specifies that each physical channel in the eMTC technology needs to perform repeated data transmission in consecutive subframes for multiple times, so as to improve the receiving signal-to-noise ratio of the data receiving party, thereby ensuring normal data transceiving.
At present, in order to know the moving condition of the terminal, the base station generally needs to measure the speed of the terminal. When measuring the speed of the terminal, the speed measurement can be performed by a Global Positioning System (GPS) installed in the terminal, but the GPS needs to be always in a power receiving state. However, the method is unacceptable due to large electricity consumption of the eMTC terminal; furthermore, the eMTC terminal usually operates in a coverage enhancement area such as a basement, and cannot receive GPS signals, so the speed measurement method is not suitable for the eMTC terminal. In another speed measurement mode, during the moving process of the terminal, the base station determines the moving speed of the terminal by obtaining the reported historical cell information, however, the overhead of air interface signaling is high and the waste of system resources is serious by adopting the historical information reporting mode in the internet of things needing repeated transmission. Therefore, the speed measurement method is not suitable for the eMTC terminal.
To sum up, a new speed measurement mode for the eMTC terminal needs to be found.
Disclosure of Invention
The embodiment of the invention provides a terminal speed measurement method and a base station, which are used for realizing speed measurement of an eMTC terminal.
The embodiment of the invention provides the following specific technical scheme:
in a first aspect, an embodiment of the present invention provides a terminal speed measurement method, including the following steps:
the eNB receives a paging request message which is sent by a mobile management entity MME and aims at a machine type communication eMTC terminal; the paging request message carries paging auxiliary parameters, wherein the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eNB initiates paging again;
the eNB pages the eMTC terminal according to the paging request message and determines a target cell corresponding to the eMTC when paging is successful;
and the eNB determines the interval distance between the history cell and the target cell according to the paging auxiliary parameters, and determines the moving speed of the eMTC terminal according to the interval distance and the paging interval time.
In a possible embodiment, the determining, by the eNB, an interval distance between the history cell and the target cell according to the paging assistance parameter, and determining a moving speed of the eMTC terminal according to the interval distance and the paging interval time includes:
the eNB determines the inter-station distance between the historical cell and the target cell according to the position parameter in the cell parameters;
and the eNB determines the moving speed of the eMTC terminal according to the ratio of the station spacing to the paging interval time.
In a possible implementation manner, the paging assistance parameter further includes a number of times of repetition of an MPDCCH corresponding to the eMTC;
the eNB determines the separation distance between the history cell and the target cell according to the paging auxiliary parameter, and determines the moving speed of the eMTC terminal according to the separation distance and the paging interval time, including:
the eNB determines the historical position of the eMTC terminal in the historical cell according to the MPDCCH repetition times, the historical cell position of the historical cell and the bitmap relationship between the position fingerprint in the historical cell and the MPDCCH repetition times;
the eNB determines the current MPDCCH repetition times when the eMTC terminal is successfully paged according to the MPDCCH repetition times;
the eNB determines a target position of the eMTC terminal in the target cell according to the current MPDCCH repetition times and a bitmap relationship between the position fingerprint in the target cell and the MPDCCH repetition times;
and the eNB determines the interval distance according to the historical position and the target position, and determines the moving speed of the eMTC terminal according to the ratio of the interval distance to the paging interval time.
In a possible embodiment, while the eNB pages the eMTC terminal according to the paging request message, the method further includes:
the eNB records the paging time interval of the eMTC terminal for initiating paging again according to the paging time interval record carried in the paging auxiliary parameter; or
And the eNB records the paging time interval for initiating paging again to the eMTC terminal according to the last service release time of the eMTC terminal carried in the paging request message sent by the MME.
In a possible embodiment, while the eNB pages the eMTC terminal according to the paging request message, the method further includes:
and the eNB records the paging time interval for initiating paging again to the eMTC terminal according to the release time of the eMTC terminal when the eMTC terminal is released last time, which is stored by the eNB.
In a possible embodiment, if the eNB records a paging time interval for initiating paging again to the eMTC terminal according to a release time of the eMTC terminal stored in the eNB when the eMTC terminal was released last time, the method further includes:
and the eNB sends the stored release time of the eMTC terminal at the latest release to other eMTCs through an interface, so that the other eMTCs record the paging time interval for initiating paging to the eMTC terminal again according to the release time of the eMTC terminal at the latest release.
In a possible embodiment, if the eNB records a paging time interval for initiating paging again to the eMTC terminal according to a stored release time of the eMTC terminal when the eMTC terminal was released last time, the method further includes:
the eNB initiates paging of the eMTC terminal again according to the stored release context of the eMTC terminal, and determines the interval distance between the current position of the eMTC terminal and the historical cell position when the eMTC terminal is released when the paging is successful;
and the eNB calculates the moving speed of the eMTC terminal according to the determined interval distance between the current position and the historical cell at the latest release time and the stored paging time interval for initiating paging again to the eMTC terminal according to the release time record of the eMTC terminal at the latest release time.
In a possible embodiment, after the eNB initiates paging to the eMTC terminal again according to the saved release context of the eMTC terminal, the method further includes:
the eNBs send paging request messages to other eNBs through interfaces, the other eNBs are triggered to page the eMTC terminal, the eNBs receive paging responses of the other eNBs, and the speed of the eMTC terminal is measured according to the interval distance between the current position of the eMTC terminal and the historical cell position when the eMTC terminal is released when paging succeeds and the paging time interval when the eMTC terminal initiates paging again according to the stored release time record when the eMTC terminal is released last time.
In a possible embodiment, after the eNB receives the paging response of the other eNB, the method further includes:
if the paging of the eMTC terminal by the other eNBs fails, the eMTC terminal is determined by the eNB to be out of the cell range covered by the eNB and the other eNBs;
and the eNB determines the historical cell position of the historical cell according to the cell parameters of the historical cell, and estimates the moving speed of the eMTC terminal according to the interval distance between the historical cell position and the covered cell range and the paging time interval for initiating paging again to the eMTC terminal according to the stored release time record of the eMTC terminal when the eMTC terminal is released last time.
In a possible embodiment, after the eNB initiates paging to the eMTC terminal again according to the saved release context of the eMTC terminal, the method further includes:
and the eNB sends the release context to other eNBs through interfaces, and triggers the other eNBs to page the eMTC terminal, so that the other eNBs can measure the speed of the eMTC terminal according to the cell deployment interval distance and the stored paging time interval for the eMTC terminal to initiate paging again according to the release time record of the eMTC terminal when being released last time.
In a second aspect, an embodiment of the present invention provides a base station, including:
the receiving module is used for receiving a paging request message which is sent by a mobile management entity MME and aims at a machine type communication eMTC terminal; the paging request message carries paging auxiliary parameters, wherein the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eNB initiates paging again;
the paging module is used for paging the eMTC terminal according to the paging request message and determining a target cell corresponding to the eMTC when the paging is successful;
and the speed measuring module is used for determining the interval distance between the historical cell and the target cell according to the paging auxiliary parameters and determining the moving speed of the eMTC terminal according to the interval distance and the paging interval time.
In a possible embodiment, the speed measuring module includes:
a first determining module, configured to determine, according to a location parameter in the cell parameters, an inter-station distance between the history cell and the target cell;
a second determining module, configured to determine a moving speed of the eMTC terminal according to a ratio of the inter-station distance to the paging interval time.
In a possible implementation manner, the paging assistance parameter further includes a number of times of repetition of an MPDCCH corresponding to the eMTC;
the speed measuring module comprises:
a third determining module, configured to determine, according to the MPDCCH repetition number, the historical cell location of the historical cell, and a bitmap relationship between a location fingerprint in the historical cell and the MPDCCH repetition number, a historical location of the eMTC terminal in the historical cell;
a fourth determining module, configured to determine, according to the MPDCCH repetition number, a current MPDCCH repetition number when the eMTC terminal succeeds in paging;
a fifth determining module, configured to determine, according to the current MPDCCH repetition number and a bitmap relationship between a location fingerprint in the target cell and the MPDCCH repetition number, a target location of the eMTC terminal in the target cell;
a sixth determining module, configured to determine the separation distance according to the historical location and the target location, and determine a moving speed of the eMTC terminal according to a ratio of the separation distance to the paging interval time.
In a possible implementation, the base station further includes:
a recording module, configured to record, according to a paging time interval record carried in a paging auxiliary parameter, a paging time interval at which the eMTC terminal initiates paging again, while the paging module pages the eMTC terminal according to the paging request message; or, according to the last service release time record of the eMTC terminal carried in the paging request message sent by the MME, a paging time interval for initiating paging again for the eMTC terminal is recorded.
In a possible embodiment, the recording module is further configured to: and when the paging module pages the eMTC terminal according to the paging request message, the paging module is used for recording a paging time interval for initiating paging again to the eMTC terminal according to the release time of the eMTC terminal when the eMTC terminal is released last time, which is stored by the eNB.
In a possible implementation manner, if the recording module records, according to the stored release time of the eMTC terminal when the eMTC terminal was released last time, a paging time interval for initiating paging to the eMTC terminal again, the base station further includes:
and the sending module is used for sending the stored release time of the eMTC terminal when the eMTC terminal is released last time to other eMTCs through interfaces so that the other eMTCs can record the paging time interval for initiating paging again to the eMTC terminal according to the release time of the eMTC terminal when the eMTC terminal is released last time.
In a possible implementation manner, if the recording module records a paging time interval for initiating paging again to the eMTC terminal according to a stored release time of the eMTC terminal when the eMTC terminal is released last time;
the paging module is further configured to: initiating paging to the eMTC terminal again according to the stored release context of the eMTC terminal, and determining the spacing distance between the current position of the eMTC terminal and the historical cell position when the eMTC terminal is released when the paging is successful;
the speed measuring module is also used for: and calculating the moving speed of the eMTC terminal according to the determined interval distance between the current position and the historical cell at the latest release time and the stored paging time interval for the eMTC terminal to initiate paging again according to the release time record of the eMTC terminal at the latest release time.
In a possible implementation manner, the paging module is further configured to send a paging request message to other enbs through an interface after the paging of the eMTC terminal is reinitiated according to the stored release context of the eMTC terminal, trigger the other enbs to page the eMTC terminal, receive a paging response of the other enbs to determine an interval distance between a current location of the eMTC terminal and a historical cell location when the eMTC terminal is released when the paging is successful, and determine a paging time interval at which the paging of the eMTC terminal is reinitiated according to a stored release time record when the eMTC terminal is released last time, where the eMTC terminal is reinitiated to page the eMTC terminal according to the stored paging time interval
In a possible implementation, the base station further includes:
a seventh determining module, configured to determine, after receiving the paging response of the other eNB through the receiving module, that the eMTC terminal is outside a cell range covered by the eNB and the other eNB if the paging of the other eNB to the eMTC terminal fails;
the speed measurement module is further used for determining the historical cell position of the historical cell according to the cell parameters of the historical cell, and estimating the moving speed of the eMTC terminal according to the interval distance between the historical cell position and the covered cell range and the paging time interval for initiating paging again for the eMTC terminal according to the stored release time record of the eMTC terminal when the eMTC terminal is released last time.
In a possible implementation, the sending module is further configured to:
after the paging module initiates paging of the eMTC terminal again according to the stored release context of the eMTC terminal, the release context is sent to other eNBs through interfaces, and the other eNBs are triggered to page the eMTC terminal, so that the other eNBs can conduct speed measurement on the eMTC terminal according to the cell deployment interval distance and the stored paging time interval of the eMTC terminal initiated paging again according to the release time record of the eMTC terminal at the latest release.
In a third aspect, an embodiment of the present invention provides a computer apparatus, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the method according to any one of claims 1 to 10 when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method of the first aspect.
In the embodiment of the invention, the paging request message from the MME received by the eNB carries paging auxiliary parameters, and the paging auxiliary parameters comprise cell parameters of a historical cell corresponding to the eMTC terminal when the eMTC terminal is released for the last time and paging interval time for indicating the eNB to page the eMTC, so that the eNB can determine a target cell where the eMTC is located when paging succeeds after paging the eMTC terminal according to the paging request message, can determine the interval distance between the historical cell and the target cell according to the cell parameters of the historical cell in the paging auxiliary parameters, can determine the moving speed of the eMTC terminal according to the interval distance and the paging interval time, and can realize that the base station carries out speed measurement on the eMTC terminal in the paging process of the eMTC terminal, and the speed measurement mode is convenient.
Meanwhile, historical cell information does not need to be reported in repeated transmission, so that the signaling overhead of the system is effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a network system according to an embodiment of the invention;
FIG. 2 is a flowchart of a terminal speed measurement method according to an embodiment of the present invention;
FIG. 3 is a block diagram of a base station according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a base station structure according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. 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.
First, some terms in the present application will be explained.
1) A Mobile Management Entity (MME) may be used to locate and page the UE. In practical applications, the MME may be a network element in a core network.
2) The base station may refer to an evolved Node B (eNB), the eNB may perform information transfer with the terminal and the MME, and an interface between the eNB and the MME may be an S1 interface. The eNB may be directly connected to the MEE, or may access the MME through a centralized proxy node (e.g., an eNB gateway). Alternatively, the eNB may also communicate with other enbs. In practical applications, the eNB may initiate paging for the terminal within the coverage of the eNB (e.g., in one or more cells) according to the paging request message sent by the MME.
3) The eMTC terminal may access the network through the eNB, which may be a UE at a cell edge.
The network architecture applied in the present application is described below with reference to the accompanying drawings.
As shown in fig. 1, it is a system architecture of LTE. In the system, an MME in a core network may initiate a paging request message, where the paging request message may first reach a base station (eNB) through an S1 interface, where generally, the eNB has multiple cells, and an air interface data transceiver is performed between a terminal and the cells in a connected state, where the paging request message carries a terminal-specific configuration, such as a device identifier of the terminal, and a related paging message, such as a paging cell. And the eNB pages the terminal in the coverage range according to the paging request message and feeds back a paging result to the MME, and the base station can be in communication connection through an X2 interface.
As shown in fig. 2, an embodiment of the present invention provides a terminal speed measurement method, which may be applied to the network architecture shown in fig. 1. The method may comprise the steps of:
s11: the eNB reports the context release message released by the eMTC at the last time to a Mobility Management Entity (MME) in the core network to receive the context release message.
The eNB may be a base station that the eMTC terminal accesses before the last release.
The last release of the eMTC terminal may refer to a Radio Resource Control (RRC) RCC connection release, where the eMTC terminal enters an idle state from a connected state.
The context release message of the eMTC terminal may include an identifier of the eMTC terminal, cell parameters of a history cell where the eMTC terminal is located when releasing, a coverage enhancement level of the eMTC terminal, and the like.
In practical applications, the coverage enhancement level is related to the number of repetitions of a machine Downlink Control Channel (MPDCCH) of an eMTC terminal. The number of the repetitions of the MPDCCH may be the number of repetitions used by the eMTC terminal when the eMTC terminal has last accessed the network (also referred to as a historical number of repetitions of the MPDCCH), or the number of repetitions used by the eMTC terminal for the last time before the eMTC terminal enters the idle state from the connected state. For example, the MPDCCH repetition number may be 4, 8, or other values. Generally, the larger the coverage enhancement level of the eMTC terminal, the larger the number of MPDCCH repetitions of the eMTC terminal.
When the UE (e.g., the eMTC terminal) is released last time, the eNB may locally store the context of the UE, and send the relevant parameters in the context release message of the eMTC terminal to the MME, so that the MME generates a paging request message according to the context release message when the eMTC terminal needs to be paged.
S12: the method comprises the steps that an MME generates and sends a paging request message aiming at eMTC to an eNB, the paging request message carries paging auxiliary parameters, the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eMTC terminal is paged again, and the eNB receives the paging request message.
In the embodiment of the invention, after the eNB reports the context release message to the core network, the core network stores relevant parameters in the context release message, and when the eMTC terminal is paged next time, the core network may generate paging auxiliary parameters of the paging request message according to the context release message, for example, the paging auxiliary parameters may include cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time, and parameters such as a paging interval from the time of releasing last time to the time when the eNB initiates paging again.
Of course, the paging assistance parameters may also include other parameters, such as MPDCCH repetition number. In practical application, after the eMTC terminal is released, the eNB may report the MPDCCH repetition number of the eMTC terminal to the core network, and the core network stores the MPDCCH repetition number used by the eMTC terminal, so that when paging the user equipment next time, the core network sends the stored MPDCCH repetition number corresponding to the eMTC terminal to the base station that needs to page the user equipment, so that the base station that needs to page the eMTC terminal uses the MPDCCH repetition number notified by the core network to page.
S13: and the eNB pages the eMTC terminal according to the paging request message, determines a target cell of the eMTC terminal, determines the interval distance between the history cell and the target cell according to the paging auxiliary parameters, and determines the moving speed of the eMTC terminal according to the interval distance and the paging interval time.
In S13, the eNB may initiate paging to the eMTC terminal according to the paging request message, and determine a target cell corresponding to the eMTC terminal. The target cell may be a cell in which the eMTC terminal is located, which is determined according to the paging result, for example, the target cell may be a cell in which the eMTC terminal is located when the paging is successful. In practical applications, the target cell may be the same as or different from the history cell.
After the target cell is determined, the eNB can determine the interval distance between the historical cell and the target cell according to the paging auxiliary parameters, and then can determine the moving speed of the eMTC terminal according to the interval distance and the paging interval time, so that the speed measurement of the eMTC terminal in the paging process is realized.
In the embodiment of the present invention, the eNB determines the separation distance between the history cell and the target cell according to the paging auxiliary parameter, and may be implemented in the following manner.
The first method is as follows: and the eNB determines the inter-station distance between the historical cell and the target cell according to the position parameter in the cell parameters.
The location parameter in the cell parameters may be determined according to a cell deployment situation under the eNB, which may characterize a location where the cell is located, for example, the location may be a center location of the cell. Therefore, in this manner, the determined inter-station distance may be a distance between the center position of the history cell and the center position of the target cell.
That is, the distance that the eMTC terminal moves during the paging interval is the inter-site distance, and then, in S13, the eNB may calculate a ratio between the inter-site distance and the paging interval, which is the moving speed of the eMTC terminal.
The second method comprises the following steps: if the paging auxiliary parameter further includes the number of times of repeating the machine type communication downlink control channel (MPDCCH) corresponding to the eMTC terminal, then:
firstly, the eNB may determine the historical location of the eMTC terminal in the historical cell according to the number of repetitions of the MPDCCH, the location of the historical cell, and a bitmap relationship between the location fingerprint in the historical cell and the number of repetitions of the MPDCCH.
The location of the history cell may be determined according to the location parameter of the cell parameter in the paging assistance parameter. The bitmap relationship between the position fingerprint in the history cell and the MPDCCH repetition times can be preset in advance, so that the position of the eMTC terminal in the target cell can be determined when the MPDCCH repetition times are reached. That is, the eNB may determine a specific location of the eMTC terminal in the history cell, i.e., a history location, according to the history cell and the history of MPDCCH repetition times.
Then, the eNB determines the current MPDCCH repetition number when the eMTC terminal is successfully paged according to the historical MPDCCH repetition number (i.e., the MPDCCH repetition number carried in the paging assistance parameter).
The current MPDCCH repetition number may refer to a repetition number determined when the paging of the eMTC terminal is successful by the eNB according to the paging of the MPDCCH repetition number carried in the paging request message sent by the MME. For example, if the historical MPDCCH repetition number indicated by the MME is 8, if the eNB pages successfully at the 6 th repetition, the current MPDCCH repetition number is the 6 th repetition.
And then, the eNB determines the specific position in the target cell according to the target cell and the current MPDCCH repetition times. At this time, the eNB may determine the location fingerprint corresponding to the current MPDCCH repetition number according to the current MPDCCH repetition number and a bitmap relationship between the location fingerprint in the target cell and the MPDCCH repetition number, where the location is a specific location (i.e., a target location) where the eMTC terminal is located in the target cell.
In practical applications, the current MPDCCH repetition number may also be recorded in the paging assistance parameter. For example, when the core network provides the coverage intensity level, the core network may also carry related paging optimization parameters to assist the eNB to select a suitable number of MPDCCH repetitions for the UE, thereby improving the paging success rate. The paging optimization parameters may include the number of paging attempts, the current paging count, the paging area, etc.
Finally, the eNB determines the separation distance by calculating the distance between the historical location and the target location. For example, the relative distance between two positions is taken as the separation distance.
After determining the separation distance by the two methods, the eNB may calculate a ratio between the separation distance and the total paging interval time, where the ratio is the moving speed of the eMTC terminal.
It should be noted that, in the second mode, the specific positions of the eMTC terminal in the history cell and the target cell are determined by combining the current MPDCCH repetition number and the bitmap relationship, which is helpful for improving the accuracy of positioning the eMTC terminal, so that the accuracy of measuring the speed of the eMTC terminal is improved.
In practical application, after the eNB pages the eMTC terminal according to the paging request message, if it is determined that the eNB fails to page the eMTC terminal according to the MPDCCH repetition number, the eNB may update the MPDCCH repetition number parameter. Generally, the eNB gradually increases the paging repetition number, and the updated MPDCCH repetition number is greater than the MPDCCH repetition number before updating.
For example, the number of MPDCCH repetitions received by the eNB from the core network for the first time is 8, and the eNB pages the number of times by 8. If the paging is failed, the eNB may update the MPDCCH repetition number parameter by receiving the paging request message from the core network for the second time, for example, the eNB may refer to the original value of the MPDCCH repetition number in the paging assistance parameter, and if the number of the MPDCCH repetition times is 8 times, the MPDCCH repetition times may be increased to 16 times.
Furthermore, the eNB uses the updated MPDCCH repetition number as an MPDCCH repetition number corresponding to the eMTC terminal, and performs repeated paging on the eMTC terminal according to the updated MPDCCH repetition number, for example, paging in a cell within the coverage of the eNB.
In the embodiment of the invention, when the eMT is paged by the eNB according to the paging request message issued by the MEE, the paging time interval for initiating paging again can be recorded. In the recording, the following method can be adopted, but not limited to:
mode 1: and the eNB records the paging time interval of the eMTC terminal for initiating paging again according to the paging time interval record carried in the paging auxiliary parameter.
That is, if the paging request message sent by the core network when paging the eMTC terminal again includes a time interval for paging the eMTC terminal again in the paging assistance message, the eNB may record the paging time interval for initiating paging again based on the paging time interval sent by the MME.
For example, the core network directly carries the paging transmission time interval of T2-T1 in the paging assistance parameter, i.e. the current paging time minus the last service release time, then the eNB may also directly know the paging transmission time interval of T2-T1.
Mode 2: and the eNB records the paging time interval for initiating paging again to the eMTC terminal according to the last service release time of the eMTC terminal carried in the paging request message sent by the MME.
That is, if the core network carries the last service release time of the eMTC terminal in the paging assistance parameter when paging the eMTC terminal again, the eNB may record the paging time interval for initiating paging again based on the last service release time statistic sent by the core network. For example, the time difference between the last service release time and the current time of initiating paging can be used as the recorded paging time interval for initiating paging again.
For example, if the eNB reports the history cell to the core network, and the core network informs the target eNB of the last release time T1 in the paging assistance parameter when paging next time. Then, assuming that the eNB receives the paging request message of the user at time T2 and paging is successful, the eNB may know the time interval T2-T1 of paging transmission again.
In practical applications, the statistics of the paging time interval may also be based on the time saved by the eNB itself when the service was released last time. Then, the eNB may also record the paging interval for initiating paging again for the eMTC terminal according to the release time at the latest release of the eMTC terminal stored by the eNB.
Further, the eNB may send the stored release time of the eMTC terminal at the time of the last release to other enbs through an interface, so that the other enbs record a paging time interval for initiating paging again for the eMTC terminal according to the release time of the eMTC terminal at the time of the last release. Then, in practical application, the eNB may send information such as historical cell information where the UE stays and previous service release time to other enbs through an interface, so that the other enbs may measure the speed of the eMTC terminal according to the deployment interval distance and the paging interval time of the cells between different enbs.
In the embodiment of the invention, if the eNB records the paging time interval for initiating the paging again to the eMTC terminal according to the release time stored in the eNB when the eMTC terminal is released last time, the eNB can also actively initiate the paging to the eMTC terminal so as to measure the speed of the eMTC terminal.
When paging is initiatively initiated, the eNB may initiate paging again according to a release context of the eMTC terminal stored by the eNB, and determine an interval distance between a current location of the eMTC terminal and a historical cell location when paging is successful, where the release context may include historical cell information where the eMTC terminal stays and a release time of a latest service release. Furthermore, the eNB may calculate a moving speed of the eMTC terminal according to a distance between the determined current location and the historical cell where the eMTC terminal was located at the time of the last release, and according to a stored paging time interval of the eMTC terminal initiated again by the eMTC terminal at the time of the last service release.
The history cell information of the eMTC terminal staying may include cell information of a cell where the eMTC terminal was located when the service was released last time, such as a cell location or a cell ID. Of course, all historical cells that have been historically parked may also be included, or information of cells within a preset time (e.g., within a week) may also be included, which is not specifically limited in the embodiment of the present invention.
In another embodiment of the present invention, if the eNB fails to page within the coverage of the base station, the eNB may send a paging request message to other enbs, for example, neighboring enbs, to initiate paging by the other enbs, and perform speed measurement on the eMTC terminal according to paging responses of the other enbs. Specifically, the eNB may send the paging request message to other enbs through the interface, and trigger the other enbs to page the eMTC terminal, and further, the eNB may receive the paging response of the other enbs to perform speed measurement on the eMTC terminal according to the separation distance between the current location of the eMTC terminal when paging is successful and the historical cell location when the eMTC terminal is released, and the paging separation time between the release time of the latest service release and the time of paging again.
For example, after paging the eMTC terminal according to the paging request message, if it is determined that the eMTC terminal is not paged in the cell range covered by the eNB, the eNB indicates that the eMTC terminal may have moved out of the coverage of the eNB. At this time, the eNB may send the paging request message to another eNB, for example, to another eNB with the eNB, trigger the other eNB to page the eMTC terminal within its coverage area, and perform speed measurement on the eMTC terminal according to a paging response fed back by the other eNB.
Therefore, when the eMTC terminal is not paged by the eNB, the other eMTCs of the eMTC terminal are triggered to initiate paging of the eMTC terminal, so that the success rate of paging the eMTC terminal can be improved, and the speed measurement of the eMTC terminal is further realized.
Further, if the eNB determines that paging of the eMTC terminal by the other eNB fails after receiving the paging response of the other eNB, the eNB may determine that the eMTC terminal is outside the cell range covered by the eNB and the other eNB. At this time, the eNB may determine a history cell position of the history cell according to the cell parameter of the history cell, and estimate the moving speed of the eMTC terminal according to an interval distance between the history cell position and a covered cell range and a paging interval time between a release time of the latest service release and a time of paging again. For example, the eNB may determine a historical cell position of the historical cell according to the cell parameter of the historical cell, determine a maximum distance between the historical cell position and an edge position of the covered cell range, and then calculate a moving speed of the eMTC terminal according to the maximum distance and the paging interval time.
Of course, in practical applications, after the eNB sends the release context to other enbs through the interface, the eNB may also directly trigger other enbs to initiate paging and perform speed measurement on the eMTC terminal. For example, when the other eNB pages successfully, the other eNB may perform speed measurement on the eMTC terminal according to the cell deployment interval distance and the paging interval time between the release time of the last service release and the time of paging again.
Or if the paging of other eNBs is unsuccessful, the eMTC terminal is indicated to be out of the range of the cells covered by the eNBs and other eNBs. At this time, the other eNB may determine the historical cell position of the historical cell according to the cell parameter of the historical cell, and estimate the movement speed of the eMTC according to the separation distance between the historical cell position and the covered cell range and the paging separation time between the release time of the latest service release and the time of paging again.
Therefore, when the eNB does not perform paging successfully, the location area of the eMTC terminal after moving can be estimated according to the edge location of the coverage area of the eNB, so that the speed of the eMTC terminal can be estimated by combining the paging interval time and the estimated location area, and the speed measurement of the eMTC terminal can be realized.
The specific application of the method is illustrated below by means of several scenarios.
Scene 1: and the eNB carries out speed measurement on the eMTC terminal according to the historical cell information and the cell which is successfully paged when paging is initiated again.
The eNB releases the service of the eMTC terminal at the time T1, and reports the Cell (Cell1) where the current UE is located to the core network as a history Cell. The subsequent core network takes the history Cell as a Paging auxiliary parameter and carries the Paging auxiliary parameter with a Paging request message on an S1 interface, for example, the Paging auxiliary parameter "Recommended Cells for Paging" includes Cell1, and after receiving the Paging request message, the eNB initiates Paging to a target terminal (i.e., an e-MTC terminal).
If the eNB successfully pages the eMTC terminal in the target Cell2, the following situations may be classified according to whether the history Cell and the target Cell are the same Cell:
the first condition is as follows: if Cell1 and Cell2 are the same Cell, it indicates that the history Cell and the target Cell are the same Cell, which means that the eMTC terminal has low mobility, for example, the moving speed of the eMTC terminal may be 0.
Case two: and if the Cell1 and the Cell2 are different cells, determining corresponding speed measurement processing according to the base station to which each Cell belongs.
i) If the Cell1 and the Cell2 are different cells under the eNB, the speed of the eMTC terminal may be measured according to the inter-eNB Cell deployment interval distance and the paging interval time.
At this time, the eNB may know the distance between the Cell2 and the Cell1 according to the deployment situation of the Cell2 and the Cell1, and may measure the speed of the eMTC terminal according to the Cell deployment interval distance and the paging interval time, for example, the ratio between the inter-site distance (S) and the interval time (T2-T1), and obtain the moving speed of the UE from the last release to the paging again.
ii) if Cell1 and Cell2 are different cells across enbs, it indicates that the target Cell and the history Cell which are paged successfully again are not under the same eNB. At this time, the speed of the eMTC terminal may be measured according to the deployment interval distance and the paging interval time of the cells between different enbs, and the calculation method is similar to that in i), which is not described herein again.
Scene 2: in the two paging intervals, if the UE does not update the Tracking Area (TA Tracking Area) of the core network, the core network will use the same S-TMSI to page the user during the two paging, that is, the S-TMSI corresponding to the eMTC terminal is not changed during the paging.
In this scenario, the eNB may record the time T1 when the UE releases the service at the previous time, and when the next paging initiation time T2 arrives, the eNB may find the previous service release time of the eMTC terminal in the history record through the same S-TMSI number, so that the eNB may know the time interval T2-T1 between two paging transmissions.
For the scenario ii) of the cross-eNB scenario in scenario 1, the eNB may send information such as historical cell information (optional geographical location information) and last release time where the UE stays to other enbs through an interface, so that a target eNB of the UE may measure the speed of the eMTC terminal according to the inter-eNB cell deployment interval distance and paging interval time when receiving the core network paging message.
Scene 3: counting the number of times of repeating the MPDCCH to increase the measurement precision;
if the eNB releases the service of the eMTC terminal at the time of T1, the Cell1 where the current UE is located and the repetition number of the currently scheduled MPDCCH are used as paging auxiliary information to be reported to a core network. And the paging auxiliary information comprises Cell1 in the paging auxiliary parameters carried by the paging request message on an S1 interface by the subsequent core network, and the paging auxiliary information informs the eNB and carries the MPDCCH repetition times so that the eNB initiates paging to the target terminal.
If the eNB is still in the Cell1 and successfully pages the eMTC terminal by using the historical MPDCCH repetition times, it means that the eMTC terminal has low mobility; if the eNB is still in the Cell1, but the eMTC terminal is successfully paged only by gradually increasing the number of repetitions based on the historical number of repetitions of the MPDCCH, this means that the eMTC terminal moves to the edge of the Cell, and the larger the number of repetitions of the MPDCCH is increased, this means that the UE is closer to the edge. If the network can establish the bitmap relationship between the number of times of successfully decoding the MPDCCH repetition and the Fingerprint (Fingerprint) of the location in the cell in advance, the specific location to which the UE moves when paging the UE again can be located, thereby further increasing the measurement accuracy.
Scene 4: after the eMTC terminal is released, besides the core network initiates paging again to perform speed measurement on the eMTC terminal, the eNB can also actively initiate paging to perform speed measurement on the eMTC terminal.
After the eMTC terminal is released, the eNB can also initiatively initiate paging according to the stored release context to carry out speed measurement on the eMTC terminal.
For a scenario that the eNB does not cross the eNB, that is, the eNB pages the UE again under the eNB, the speed measurement may be performed for the eMTC terminal according to the deployment interval distance and the paging interval time of different cells.
For a cross-eNB scenario, that is, a historical eNB cannot page a UE under the eNB, information such as historical cell information (optional geographical location information) where the UE stays and last release time may be sent to other enbs through an interface, and meanwhile, other enbs are triggered to initiate paging, so that a target eNB of the UE may measure speed for an eMTC terminal according to a cell deployment interval distance and paging interval time between different enbs.
Or, if the eNB cannot page the UE under the eNB, triggering other enbs to initiate paging and receiving paging feedback information of other enbs at the same time, so that the eNB may measure the speed for the eMTC terminal according to the inter-eNB cell deployment interval distance and the paging interval time.
Furthermore, there may be a case where the terminal is not paged finally, and it may be considered that the UE has moved out of the coverage of the eNB and its surrounding enbs (including the TAU update), that is, the UE moves out of the coverage of at least the eNB and its surrounding enbs in the paging interval, and then the rate thereof may be estimated. For example, the movement speed of the eMTC terminal is estimated from the maximum distance between the history cell position and the edge position of the coverage and the paging interval time.
Example two
Based on the same inventive concept, the embodiment of the present invention provides a base station, as shown in fig. 3, the base station includes a receiving module 21, a paging module 22, and a speed measuring module 23.
The receiving module 21 is configured to receive a paging request message for a machine-type communication eMTC terminal sent by a mobility management entity MME; the paging request message carries paging auxiliary parameters, wherein the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eNB initiates paging again;
the paging module 22 is configured to page the eMTC terminal according to the paging request message, and determine a target cell corresponding to the eMTC terminal when paging is successful;
the speed measurement module 23 is configured to determine an interval distance between the history cell and the target cell according to the paging auxiliary parameter, and determine a moving speed of the eMTC terminal according to the interval distance and the paging interval time.
Optionally, the speed measuring module 23 includes:
a first determining module, configured to determine, according to a location parameter in the cell parameters, an inter-station distance between the history cell and the target cell;
a second determining module, configured to determine a moving speed of the eMTC terminal according to a ratio of the inter-station distance to the paging interval time.
Optionally, the paging auxiliary parameter further includes a number of times of repetition of an MPDCCH corresponding to the eMTC and used for machine type communication downlink control channel;
the speed measuring module 23 includes:
a third determining module, configured to determine, according to the MPDCCH repetition number, the historical cell location of the historical cell, and a bitmap relationship between a location fingerprint in the historical cell and the MPDCCH repetition number, a historical location of the eMTC terminal in the historical cell;
a fourth determining module, configured to determine, according to the MPDCCH repetition number, a current MPDCCH repetition number when the eMTC terminal succeeds in paging;
a fifth determining module, configured to determine, according to the current MPDCCH repetition number and a bitmap relationship between a location fingerprint in the target cell and the MPDCCH repetition number, a target location of the eMTC terminal in the target cell;
a sixth determining module, configured to determine the separation distance according to the historical location and the target location, and determine a moving speed of the eMTC terminal according to a ratio of the separation distance to the paging interval time.
Optionally, the base station further includes:
a recording module, configured to record, according to a paging time interval record carried in a paging auxiliary parameter, a paging time interval at which the eMTC terminal initiates paging again, while the paging module 22 pages the eMTC terminal according to the paging request message; or, a paging time interval for initiating paging again to the eMTC terminal according to the last service release time record of the eMTC terminal carried in the paging request message sent by the MME.
Optionally, the recording module is further configured to: and when the paging module 22 pages the eMTC terminal according to the paging request message, according to a release time record of the eMTC terminal at the latest release time, which is stored by the eNB, a paging time interval for initiating paging again for the eMTC terminal.
Optionally, if the recording module records the paging time interval for initiating paging again to the eMTC terminal according to the stored release time of the eMTC terminal when the eMTC terminal was released last time, the base station further includes:
and the sending module is used for sending the stored release time of the eMTC terminal when the eMTC terminal is released last time to other eMTCs through interfaces so that the other eMTCs can record the paging time interval for initiating paging again to the eMTC terminal according to the release time of the eMTC terminal when the eMTC terminal is released last time.
Optionally, if the recording module records a paging time interval for initiating paging again to the eMTC terminal according to the stored release time of the eMTC terminal at the latest release time;
the paging module 22 is further configured to: initiating paging to the eMTC terminal again according to the stored release context of the eMTC terminal, and determining the spacing distance between the current position of the eMTC terminal and the historical cell position when the eMTC terminal is released when the paging is successful;
the speed measuring module 23 is further configured to: and calculating the moving speed of the eMTC terminal according to the determined interval distance between the current position and the historical cell at the latest release time and the stored paging time interval for the eMTC terminal to initiate paging again according to the release time record of the eMTC terminal at the latest release time.
Optionally, the paging module 22 is further configured to send a paging request message to other enbs through an interface after the paging of the eMTC terminal is reinitiated according to the stored release context of the eMTC terminal, trigger the other enbs to page the eMTC terminal, the eNB receives a paging response of the other enbs, when the paging is successful, an interval distance between a current location of the eMTC terminal and a historical cell location located when the eMTC terminal is released, and a speed measurement time interval between the paging time interval when the eMTC terminal reinitiates the paging according to a stored release time record when the eMTC terminal is released last time is right
Optionally, the base station further includes:
a seventh determining module, configured to determine, after receiving the paging response of the other eNB through the receiving module, that the eMTC terminal is outside a cell range covered by the eNB and the other eNB if the paging of the other eNB to the eMTC terminal fails;
the speed measurement module 23 is further configured to determine a historical cell position of the historical cell according to the cell parameter of the historical cell, and estimate a moving speed of the eMTC terminal according to a distance between the historical cell position and the covered cell range and according to a stored paging time interval at which the eMTC terminal initiates paging again according to the stored release time record of the eMTC terminal at the time of the latest release.
Optionally, the sending module is further configured to:
after the paging module initiates paging of the eMTC terminal again according to the stored release context of the eMTC terminal, the release context is sent to other eNBs through interfaces, and the other eNBs are triggered to page the eMTC terminal, so that the other eNBs can conduct speed measurement on the eMTC terminal according to the cell deployment interval distance and the stored paging time interval of the eMTC terminal initiated paging again according to the release time record of the eMTC terminal at the latest release.
EXAMPLE III
Based on the same inventive concept, an embodiment of the present invention provides a base station, and specific implementation of the base station may refer to descriptions in the method embodiment, and repeated parts are not repeated, as shown in fig. 4, the base station mainly includes a processor 601, a memory 602, and a transceiver 603, where the transceiver 603 receives and transmits data under the control of the processor 601, a preset program is stored in the memory 602, the processor 601 reads the program in the memory 602, and executes the following processes according to the program:
receiving a paging request message for a machine type communication (eMTC) terminal sent by a Mobility Management Entity (MME) through a transceiver 603; the paging request message carries paging auxiliary parameters, wherein the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eNB initiates paging again;
the processor 601 pages the eMTC terminal according to the paging request message, and determines a target cell corresponding to the eMTC when paging is successful; and determining the interval distance between the historical cell and the target cell according to the paging auxiliary parameters, and determining the moving speed of the eMTC terminal according to the interval distance and the paging interval time.
Where in fig. 4 the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by the processor 601 and various circuits of the memory represented by the memory 602, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 603 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations.
Example four
Referring to fig. 5, the computer device includes a processor 51 and a memory 52, where the processor 51 is configured to implement the steps of the method provided in the first embodiment of the present invention when executing the computer program stored in the memory 52.
Optionally, the processor 51 may specifically be a central processing unit, an Application Specific Integrated Circuit (ASIC), one or more Integrated circuits for controlling program execution, a hardware Circuit developed by using a Field Programmable Gate Array (FPGA), or a baseband processor.
Optionally, the processor 51 may include at least one processing core.
Optionally, the electronic device further includes a Memory 52, and the Memory 52 may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. The memory 52 is used for storing data required by the processor 51 in operation. The number of the memory 52 is one or more.
EXAMPLE five
The embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the computer instructions are run on a computer, the steps of the terminal speed measurement method according to an embodiment of the present invention may be implemented.
In the embodiments of the present invention, it should be understood that the disclosed terminal speed measurement method and base station may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical or other form.
The functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be an independent physical module.
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 an entirely hardware embodiment, an entirely 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.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (22)

1. A terminal speed measurement method is applied to a base station eNB and is characterized by comprising the following steps:
the eNB receives a paging request message which is sent by a mobile management entity MME and aims at a machine type communication eMTC terminal; the paging request message carries paging auxiliary parameters, wherein the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eNB initiates paging again;
the eNB pages the eMTC terminal according to the paging request message and determines a target cell corresponding to the eMTC when paging is successful;
and the eNB determines the interval distance between the history cell and the target cell according to the paging auxiliary parameters, and determines the moving speed of the eMTC terminal according to the interval distance and the paging interval time.
2. The method of claim 1, wherein the eNB determines a separation distance between the history cell and the target cell according to the paging assistance parameter, and determines a moving speed of the eMTC terminal according to the separation distance and the paging separation time, comprising:
the eNB determines the inter-station distance between the historical cell and the target cell according to the position parameter in the cell parameters;
and the eNB determines the moving speed of the eMTC terminal according to the ratio of the station spacing to the paging interval time.
3. The method of claim 1, wherein the paging assistance parameters further include a number of times the eMTC corresponds to a machine type communication downlink control channel, MPDCCH, repeats;
the eNB determines the separation distance between the history cell and the target cell according to the paging auxiliary parameter, and determines the moving speed of the eMTC terminal according to the separation distance and the paging interval time, including:
the eNB determines the historical position of the eMTC terminal in the historical cell according to the MPDCCH repetition times, the historical cell position of the historical cell and the bitmap relationship between the position fingerprint in the historical cell and the MPDCCH repetition times;
the eNB determines the current MPDCCH repetition times when the eMTC terminal is successfully paged according to the MPDCCH repetition times;
the eNB determines a target position of the eMTC terminal in the target cell according to the current MPDCCH repetition times and a bitmap relationship between the position fingerprint in the target cell and the MPDCCH repetition times;
and the eNB determines the interval distance according to the historical position and the target position, and determines the moving speed of the eMTC terminal according to the ratio of the interval distance to the paging interval time.
4. The method of claim 1, wherein while the eNB pages the eMTC terminal according to the paging request message, the method further comprises:
the eNB records the paging time interval of the eMTC terminal for initiating paging again according to the paging time interval record carried in the paging auxiliary parameter; or
And the eNB records the paging time interval for initiating paging again to the eMTC terminal according to the last service release time of the eMTC terminal carried in the paging request message sent by the MME.
5. The method of claim 1, wherein while the eNB pages the eMTC terminal according to the paging request message, the method further comprises:
and the eNB records the paging time interval for initiating paging again to the eMTC terminal according to the release time of the eMTC terminal when the eMTC terminal is released last time, which is stored by the eNB.
6. The method of claim 5, wherein if the eNB re-initiates a paging interval for the eMTC terminal based on its stored release time record for the most recent release of the eMTC terminal, the method further comprises:
and the eNB sends the stored release time of the eMTC terminal at the latest release to other eMTCs through an interface, so that the other eMTCs record the paging time interval for initiating paging to the eMTC terminal again according to the release time of the eMTC terminal at the latest release.
7. The method of claim 5, wherein if the eNB re-initiates a paging interval for the eMTC terminal based on its stored release time record for the most recent release of the eMTC terminal, the method further comprises:
the eNB initiates paging of the eMTC terminal again according to the stored release context of the eMTC terminal, and determines the interval distance between the current position of the eMTC terminal and the historical cell position when the eMTC terminal is released when the paging is successful;
and the eNB calculates the moving speed of the eMTC terminal according to the determined interval distance between the current position and the historical cell at the latest release time and the stored paging time interval for initiating paging again to the eMTC terminal according to the release time record of the eMTC terminal at the latest release time.
8. The method of claim 7, further comprising, after the eNB reinitiating paging for the eMTC terminal according to the saved release context for the eMTC terminal:
the eNBs send paging request messages to other eNBs through interfaces, the other eNBs are triggered to page the eMTC terminal, the eNBs receive paging responses of the other eNBs, and the speed of the eMTC terminal is measured according to the interval distance between the current position of the eMTC terminal and the historical cell position when the eMTC terminal is released when paging succeeds and the paging time interval when the eMTC terminal initiates paging again according to the stored release time record when the eMTC terminal is released last time.
9. The method of claim 8, wherein after the eNB receives the page responses of the other enbs, further comprising:
if the paging of the eMTC terminal by the other eNBs fails, the eMTC terminal is determined by the eNB to be out of the cell range covered by the eNB and the other eNBs;
and the eNB determines the historical cell position of the historical cell according to the cell parameters of the historical cell, and estimates the moving speed of the eMTC terminal according to the interval distance between the historical cell position and the covered cell range and the paging time interval for initiating paging again to the eMTC terminal according to the stored release time record of the eMTC terminal when the eMTC terminal is released last time.
10. The method of claim 7, further comprising, after the eNB reinitiating paging for the eMTC terminal according to the saved release context for the eMTC terminal:
and the eNB sends the release context to other eNBs through interfaces, and triggers the other eNBs to page the eMTC terminal, so that the other eNBs can measure the speed of the eMTC terminal according to the cell deployment interval distance and the stored paging time interval for the eMTC terminal to initiate paging again according to the release time record of the eMTC terminal when being released last time.
11. A base station (eNB), comprising:
the receiving module is used for receiving a paging request message which is sent by a mobile management entity MME and aims at a machine type communication eMTC terminal; the paging request message carries paging auxiliary parameters, wherein the paging auxiliary parameters comprise cell parameters of a history cell corresponding to the eMTC terminal when the eMTC terminal is released last time and paging interval time from the time of releasing last time to the time when the eNB initiates paging again;
the paging module is used for paging the eMTC terminal according to the paging request message and determining a target cell corresponding to the eMTC when the paging is successful;
and the speed measuring module is used for determining the interval distance between the historical cell and the target cell according to the paging auxiliary parameters and determining the moving speed of the eMTC terminal according to the interval distance and the paging interval time.
12. The base station of claim 11, wherein the velocity measurement module comprises:
a first determining module, configured to determine, according to a location parameter in the cell parameters, an inter-station distance between the history cell and the target cell;
a second determining module, configured to determine a moving speed of the eMTC terminal according to a ratio of the inter-station distance to the paging interval time.
13. The base station of claim 11, wherein the paging assistance parameters further include a number of times the eMTC corresponds to a machine-type communication downlink control channel, MPDCCH, repeats;
the speed measuring module comprises:
a third determining module, configured to determine, according to the MPDCCH repetition number, the historical cell location of the historical cell, and a bitmap relationship between a location fingerprint in the historical cell and the MPDCCH repetition number, a historical location of the eMTC terminal in the historical cell;
a fourth determining module, configured to determine, according to the MPDCCH repetition number, a current MPDCCH repetition number when the eMTC terminal succeeds in paging;
a fifth determining module, configured to determine, according to the current MPDCCH repetition number and a bitmap relationship between a location fingerprint in the target cell and the MPDCCH repetition number, a target location of the eMTC terminal in the target cell;
a sixth determining module, configured to determine the separation distance according to the historical location and the target location, and determine a moving speed of the eMTC terminal according to a ratio of the separation distance to the paging interval time.
14. The base station of claim 11, wherein the base station further comprises:
a recording module, configured to record, according to a paging time interval record carried in a paging auxiliary parameter, a paging time interval at which the eMTC terminal initiates paging again, while the paging module pages the eMTC terminal according to the paging request message; or, a paging time interval for initiating paging again to the eMTC terminal according to the last service release time record of the eMTC terminal carried in the paging request message sent by the MME.
15. The base station of claim 14, wherein the logging module is further configured to:
and when the paging module pages the eMTC terminal according to the paging request message, the paging module is used for recording a paging time interval for initiating paging again to the eMTC terminal according to the release time of the eMTC terminal when the eMTC terminal is released last time, which is stored by the eNB.
16. The base station of claim 15, wherein if the logging module logs a paging interval for reinitiating paging for the eMTC terminal based on a release time of the eMTC terminal at a last release time stored by the eNB itself, the base station further comprises:
and the sending module is used for sending the stored release time of the eMTC terminal when the eMTC terminal is released last time to other eMTCs through interfaces so that the other eMTCs can record the paging time interval for initiating paging again to the eMTC terminal according to the release time of the eMTC terminal when the eMTC terminal is released last time.
17. The base station of claim 15, wherein the recording module records a paging interval for reinitiating paging for the eMTC terminal if the recording module re-initiates paging for the eMTC terminal according to a release time stored by the eNB itself at a last release of the eMTC terminal;
the paging module is further configured to: initiating paging to the eMTC terminal again according to the stored release context of the eMTC terminal, and determining the spacing distance between the current position of the eMTC terminal and the historical cell position when the eMTC terminal is released when the paging is successful;
the speed measuring module is also used for: and calculating the moving speed of the eMTC terminal according to the determined interval distance between the current position and the historical cell at the latest release time and the stored paging time interval for the eMTC terminal to initiate paging again according to the release time record of the eMTC terminal at the latest release time.
18. The base station of claim 17, wherein the paging module is further configured to send a paging request message to another eNB through an interface after re-initiating paging of the eMTC terminal according to the saved release context of the eMTC terminal, to trigger the other eNB to page the eMTC terminal, and wherein the eNB receives a paging response of the other eNB to perform speed measurement on the eMTC terminal according to a separation distance between a current location of the eMTC terminal when paging is successful and a historical cell location when the eMTC terminal is released, and according to a stored release time record of the last release time of the eMTC terminal at a paging time interval when paging is re-initiated by the eMTC terminal.
19. The base station of claim 18, wherein the base station further comprises:
a seventh determining module, configured to determine, after receiving the paging response of the other eNB through the receiving module, that the eMTC terminal is outside a cell range covered by the eNB and the other eNB if the paging of the other eNB to the eMTC terminal fails;
the speed measurement module is further used for determining the historical cell position of the historical cell according to the cell parameters of the historical cell, and estimating the moving speed of the eMTC terminal according to the interval distance between the historical cell position and the covered cell range and the paging time interval for initiating paging again for the eMTC terminal according to the stored release time record of the eMTC terminal when the eMTC terminal is released last time.
20. The base station of claim 17, wherein the transmitting module is further configured to:
after the paging module initiates paging of the eMTC terminal again according to the stored release context of the eMTC terminal, the release context is sent to other eNBs through interfaces, and the other eNBs are triggered to page the eMTC terminal, so that the other eNBs can conduct speed measurement on the eMTC terminal according to the cell deployment interval distance and the stored paging time interval of the eMTC terminal initiated paging again according to the release time record of the eMTC terminal at the latest release.
21. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of any one of claims 1 to 10 are performed by the processor when the computer program is executed.
22. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 10.
CN201710751097.3A 2017-08-28 2017-08-28 Terminal speed measurement method and base station Active CN109495864B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710751097.3A CN109495864B (en) 2017-08-28 2017-08-28 Terminal speed measurement method and base station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710751097.3A CN109495864B (en) 2017-08-28 2017-08-28 Terminal speed measurement method and base station

Publications (2)

Publication Number Publication Date
CN109495864A CN109495864A (en) 2019-03-19
CN109495864B true CN109495864B (en) 2020-10-30

Family

ID=65687011

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710751097.3A Active CN109495864B (en) 2017-08-28 2017-08-28 Terminal speed measurement method and base station

Country Status (1)

Country Link
CN (1) CN109495864B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110661681B (en) * 2019-09-12 2021-06-04 北京市天元网络技术股份有限公司 Buried point design method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101815352A (en) * 2010-02-08 2010-08-25 中兴通讯股份有限公司 Method and base station controller for paging terminal and terminal for reporting position information
CN103404215A (en) * 2013-01-14 2013-11-20 华为技术有限公司 Method and device for reducing paging signaling
CN103476046A (en) * 2012-06-08 2013-12-25 中兴通讯股份有限公司 Measurement method of cell and UE
US9078284B2 (en) * 2008-12-31 2015-07-07 Airvana Lp Personal access point media server
CN105122729A (en) * 2013-04-15 2015-12-02 瑞典爱立信有限公司 Signaling of system information to MTC-devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160029253A1 (en) * 2014-07-28 2016-01-28 Telefonaktiebolaget L M Ericsson (Publ) System and method of automatic neighbor relation (anr) intelligence enhancement for boomer neighbor in lte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9078284B2 (en) * 2008-12-31 2015-07-07 Airvana Lp Personal access point media server
CN101815352A (en) * 2010-02-08 2010-08-25 中兴通讯股份有限公司 Method and base station controller for paging terminal and terminal for reporting position information
CN103476046A (en) * 2012-06-08 2013-12-25 中兴通讯股份有限公司 Measurement method of cell and UE
CN103404215A (en) * 2013-01-14 2013-11-20 华为技术有限公司 Method and device for reducing paging signaling
CN105122729A (en) * 2013-04-15 2015-12-02 瑞典爱立信有限公司 Signaling of system information to MTC-devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Summary of email discussion [95#41][eNB-IoTenh] Paging open issues;Ericsson;《3GPP TSG-RAN WG2 #95bis R2-166278》;20161014;全文 *

Also Published As

Publication number Publication date
CN109495864A (en) 2019-03-19

Similar Documents

Publication Publication Date Title
EP3668205B1 (en) Positioning and measurement reporting method and apparatus
KR20190039130A (en) Methods for using location servers, infrastructure equipment, communication devices and supplemental positioning reference signals
US20120134288A1 (en) Method, system and device for determining position information of user equipment
US11877257B2 (en) Increasing mobile device positioning accuracy
CN111448819A (en) Method, device and communication system for configuring and indicating beam failure recovery
US20220263557A1 (en) A method of reporting channel state information, a communication system, and a method of scheduling tci
EP3257290B1 (en) A wireless device and method performed thereby for reporting and logging an event
US20210045083A1 (en) Data transmission and management for positioning mobile devices
US20190174456A1 (en) Methods and Apparatus for Positioning of a Wireless Communication Device using Timing Advance Multilateration
CN105307284A (en) Random access method and user equipment
CN101110627B (en) Method for obtaining locating information of user's set
CN110741718A (en) Method and apparatus for random access configuration
CN109495864B (en) Terminal speed measurement method and base station
CN111385817B (en) Neighbor cell reporting method and device, E-SMLC and terminal
US11284419B2 (en) Communication method, terminal device and network device
CN113840323A (en) Measurement report positioning method, electronic device, and storage medium
US9723587B2 (en) Movement information processing method and system, user equipment, and access network device
CN115150937B (en) Communication method and device
US20110059755A1 (en) Method of providing location information in wireless communication system
WO2021245508A1 (en) Storing beam related information of used beam at the time of initiating the time-to-trigger procedure
CN116746276A (en) Positioning in a cellular communication network
KR20110023793A (en) Method of providing location information in wireless communication system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210601

Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing

Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd.

Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY