WO2016095424A1 - Procédé, appareil et système d'accès à un terminal - Google Patents

Procédé, appareil et système d'accès à un terminal Download PDF

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Publication number
WO2016095424A1
WO2016095424A1 PCT/CN2015/079325 CN2015079325W WO2016095424A1 WO 2016095424 A1 WO2016095424 A1 WO 2016095424A1 CN 2015079325 W CN2015079325 W CN 2015079325W WO 2016095424 A1 WO2016095424 A1 WO 2016095424A1
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Prior art keywords
cell
signal quality
quality threshold
mtc
signal
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PCT/CN2015/079325
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English (en)
Chinese (zh)
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史莉荣
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中兴通讯股份有限公司
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Publication of WO2016095424A1 publication Critical patent/WO2016095424A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the present invention relates to the field of communications, and in particular to a terminal access method, apparatus, and system.
  • Machine equipment includes: home appliances, vehicles, vending machines, factory machinery and equipment.
  • M2M Machine to Machine
  • MTC Machine-Type Communications
  • M2M enables machines, devices, and application processes to share information with back-end information systems and share information with operators. It provides a means for transmitting data in real time by establishing a wireless connection between systems, between remote devices, or between individuals.
  • M2M technology integrates data acquisition, Global Positioning System (GPS), remote monitoring, telecommunications, and information technology. It is an ecosystem of computers, networks, devices, sensors, and humans. It can automate business processes and integrate corporate IT. Real-time status of systems and non-IT devices and creating value-added services. This platform can be operated and provides a wide range of applications and solutions in environments such as safety monitoring, automatic meter reading, mechanical service and repair services, vending machines, public transportation systems, fleet management, industrial process automation, electromechanical, and urban information. Program.
  • the M2M system is mainly composed of the following three parts:
  • Wireless terminal In addition to commonly used mobile phones and notebook computers, it also includes various types of industrial application terminals;
  • Transmission channel a data transmission channel from a wireless terminal to an industrial application center
  • M2M technology is of great significance, with a broad market and application, driving a new round of social production and lifestyle changes. But for mobile operators, there may be insufficient power to build a brand new network for M2M devices.
  • M2M devices In order to reduce the cost of deploying an M2M network, in terms of spectrum, consider dynamic or semi-static reuse of part of the spectrum of the existing network and application of scattered spectrum to reduce the cost overhead of the spectrum.
  • the embodiment of the invention provides a method, a device and a system for accessing a terminal, so as to at least solve the problem that the prior art provides a network access technology for an MTC device in an M2M network.
  • a method for accessing a terminal includes: measuring signal quality of each cell in a pre-acquired cell list, obtaining a signal quality measurement value corresponding to each cell; and correcting according to a pre-acquired signal quality threshold The parameters are used to correct the signal quality thresholds required by each cell, and the corrected signal quality thresholds of the respective cells are obtained; and the signal quality thresholds of the respective cells are compared according to the corrected signal quality thresholds of the respective cells; The cell whose signal quality measurement value is greater than the signal quality threshold required by the modified cell; sends an access request to the selected cell, and accesses the selected cell.
  • the method before measuring the signal quality of each cell in the pre-acquired cell list, the method further includes:
  • a cell list is obtained, and the cell list is used to display each cell currently providing communication services.
  • the method before acquiring the cell list, the method further includes:
  • the signal quality threshold correction parameter configured by the network side device, where the signal quality threshold correction parameter is used to perform correction on a required signal quality threshold for the cell corresponding to the cell type, where the cell type includes: a machine type communication MTC cell and a non-MTC cell.
  • the signal quality of each cell in the cell list is measured, and the signal quality measurement value corresponding to each cell is obtained, including:
  • the signal quality of each current cell is measured according to the signal to noise ratio of the pilot signal, and the signal to noise ratio of the pilot signal is expressed as: a ratio Ec/NO per modulation bit rate and noise spectral density;
  • the signal quality of each current cell is measured according to the received signal code power (Received Signal Code Power, RSCP for short).
  • the signal quality threshold required by each cell is corrected, and the corrected signal quality thresholds of each cell are obtained, including:
  • the signal quality thresholds and signal quality threshold correction parameters required for each cell are added or subtracted to obtain the corrected signal quality thresholds of the respective cells.
  • a terminal access apparatus including:
  • a measuring module configured to measure signal quality of each cell in the pre-acquired cell list, to obtain a signal quality measurement value corresponding to each cell;
  • the correction module is configured to correct the signal quality threshold required by each cell according to the pre-acquired signal quality threshold correction parameter, and obtain the corrected signal quality threshold of each cell;
  • the determining module is configured to compare the signal quality thresholds of the respective cells according to the corrected signal quality thresholds of the respective cells;
  • the access module is configured to send an access request to the selected cell, and access the selected cell.
  • the device further includes:
  • the obtaining module is configured to acquire a cell list, where the cell list is used to display each cell currently providing the communication service, before measuring the signal quality of each cell in the pre-acquired cell list.
  • the device further includes:
  • the receiving module is configured to receive a signal quality threshold correction parameter configured by the network side device before acquiring the cell list, where the signal quality threshold correction parameter is used to perform correction on a required signal quality threshold for the cell corresponding to the cell type, where the cell type includes:
  • the machine type communicates with the MTC cell and the non-MTC cell.
  • the measurement module is configured to measure signal quality of each cell in the cell list by using the following manner, and obtain a signal quality measurement value corresponding to each cell, including:
  • the first measuring unit is configured to measure the signal quality of each current cell according to the signal to noise ratio of the pilot signal, and the signal to noise ratio of the pilot signal is expressed as: a ratio Ec/NO per modulation bit rate and noise spectral density;
  • the second measuring unit is configured to measure the signal quality of each current cell according to the received signal code power RSCP.
  • the correction module includes:
  • the correcting unit is configured to add or subtract the signal quality threshold and the signal quality threshold correction parameter required by each cell to obtain a corrected signal quality threshold of each cell.
  • a terminal access system including: a machine type communication MTC device, a non-MTC device, a network side server, and a cell, wherein the MTC device and the non-MTC device pass the cell and the network side server.
  • a communication connection is established, and the cell includes: a machine type communication MTC cell and a non-MTC cell.
  • the MTC device and the non-MTC device obtain the signal quality measurement values corresponding to each cell by measuring the signal quality of each cell in the pre-acquired cell list, and correct the signal quality threshold required by each cell according to the pre-acquired signal quality threshold correction parameter.
  • the corrected signal quality thresholds of the respective cells are compared with the signal quality thresholds required by the corrected cells, and compared with the signal quality measurement values of the respective cells; and the signal quality measurement values are selected to be larger than the corrected cell requirements.
  • the signal quality of each cell in the pre-acquired cell list is measured, and the signal quality measurement value corresponding to each cell is obtained; and the signal quality threshold required by each cell is corrected according to the pre-acquired signal quality threshold correction parameter.
  • the problem of providing network access technology for the MTC device in the M2M network is solved, thereby implementing the access of the MTC device to the network.
  • FIG. 1 is a flowchart of a terminal access method according to an embodiment of the present invention.
  • FIG. 2 is a structural block diagram of a terminal access device according to an embodiment of the present invention.
  • FIG. 3 is a block diagram showing the structure of a terminal access device according to a preferred embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of a terminal access device according to a preferred embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a terminal access apparatus according to a preferred embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a terminal access device according to a preferred embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a terminal access system according to an embodiment of the present invention.
  • FIG. 9 is a flow of a cell access by a non-MTC device.
  • FIG. 1 is a flowchart of a method for accessing a terminal according to an embodiment of the present invention. As shown in FIG. 1 , the process includes the following steps:
  • Step S102 measuring signal quality of each cell in the pre-acquired cell list, and obtaining a signal quality measurement value corresponding to each cell;
  • the terminal access method provided by the embodiment of the present invention is applicable to Machine-Type Communications (MTC), where the MTC device includes at least: a home appliance, a vehicle, a vending machine, The device and the like of the factory; and the terminal access method provided by the embodiment of the present invention is applicable to a network side server, an MTC device, a non-MTC device, and a communication network formed by each cell, wherein the network server may be composed of multiple network servers.
  • the MTC device and the non-MTC device establish a communication connection with the network server through the access cell.
  • the embodiment of the present invention is described by taking an MTC device as an example.
  • the MTC device is described by taking a vending machine as an example.
  • the vending machine is an access cell, and a communication connection is established between the cell and the provider server, so that the supplier passes the automatic.
  • the vending machine accesses the vending machine according to the received feedback from the vending machine. Therefore, in order to establish a communication connection with the supplier's server, the vending machine obtains the communication connection before obtaining the communication connection.
  • the cell list measures the signal quality of each cell in the cell list.
  • the signal quality measurement value of cell A measured by the corresponding vending machine is A1
  • the signal quality measurement of cell B measured by the vending machine is measured.
  • the value of the signal quality measured by B1 and the cell C measured by the vending machine is C1, as shown in Table 1:
  • Step S104 correcting a signal quality threshold required by each cell according to the pre-acquired signal quality threshold correction parameter, and obtaining a corrected signal quality threshold of each cell;
  • the signal quality threshold correction parameter is configured by the network side server, and is sent by the network server to the MTC device, the non-MTC device, and each cell.
  • the MTC device corrects the signal quality threshold required by each cell according to the signal quality threshold correction parameter sent by the network server, and obtains the corrected signal quality thresholds of each cell, for example, the signal quality threshold correction parameter is As an example, it is assumed that there are three cells in the cell list, namely cell A, cell B, and cell C.
  • the required signal quality threshold of the corresponding cell A is A2
  • the required signal quality threshold of cell B is B2.
  • the required signal quality threshold of cell C is C2;
  • the correction process is as follows:
  • the corrected C3 C2 ⁇ 3.
  • Step S106 comparing with the signal quality thresholds of the respective cells according to the corrected signal quality thresholds of the respective cells
  • Step S108 selecting a cell whose signal quality measurement value is greater than a signal quality threshold required by the corrected cell
  • step S108 is combined with step S106, and the data in Table 1 and Table 2 in step S102 and step S104 are still taken as an example to compare the data in Table 1 with the data in Table 2.
  • a cell whose signal quality measurement value is larger than a signal quality threshold required by the corrected cell is selected, that is, assuming that A1>A3, B1 ⁇ B3, C1 ⁇ C3, the cell A is selected.
  • Step S110 Send an access request to the selected cell, and access the selected cell.
  • the vending machine in the above steps is still taken as an example, and the vending machine sends an access request to the cell A and accesses the cell A.
  • the MTC devices in the embodiments of the present invention are all devices having a communication function, and establish a connection between the cell and the server of the provider.
  • the MTC device includes a storage function and a data processing function.
  • the embodiment of the present invention is only described by taking a vending machine as an example, and the terminal access method provided by the embodiment of the present invention is implemented, which is not limited.
  • the signal quality of each cell in the pre-acquired cell list is measured, and the signal quality measurement value corresponding to each cell is obtained; the signal quality threshold required by each cell is corrected according to the pre-acquired signal quality threshold correction parameter, and the correction is obtained.
  • the signal quality thresholds required by each of the subsequent cells are compared with the signal quality measurement values of the respective cells according to the corrected signal quality thresholds of the respective cells; and the signal quality measurement values are selected to be larger than the signal quality required by the corrected cells.
  • a cell of the threshold sending an access request to the selected cell, and accessing the selected cell.
  • the non-MTC device is also applicable to the method described in the foregoing steps S102 to S110.
  • the difference between the non-MTC device and the MTC device in the terminal access method provided by the implementation of the present invention is: when the non-MTC device accesses the MTC-specific In the case of a cell, the network side server will refuse to access the non-MTC device in order to ensure that the spectrum resource used by the MTC device in the MTC private cell is not occupied by the non-MTC device, and the representation may be: the non-MTC device cannot access the MTC dedicated cell. Or disconnected from the cell after accessing the MTC private cell.
  • the method before measuring the signal quality of each cell in the pre-acquired cell list, the method further includes:
  • Step S101 Acquire a cell list, where the cell list is used to display each cell that currently provides communication services.
  • step S102 is taken as an example, and the obtained cell list is as shown in Table 3.
  • the method before acquiring the cell list in step S101, the method further includes:
  • Step S100 Receive a signal quality threshold correction parameter configured by the network side device, where the signal quality threshold correction parameter is used to perform correction on a required signal quality threshold for the cell corresponding to the cell type, where the cell type includes: a machine type communication MTC cell and a non-MTC Community.
  • the signal quality threshold correction parameter is configured by the network side server, and is sent by the network server to the MTC device, the non-MTC device, and each cell.
  • step S102 the signal quality of each cell in the cell list is measured, and the signal quality measurement value corresponding to each cell is obtained, including:
  • the signal quality of each current cell is measured according to the signal to noise ratio of the pilot signal, and the signal to noise ratio of the pilot signal is expressed as: a ratio Ec/NO per modulation bit rate and noise spectral density;
  • the signal quality of each current cell is measured according to the received signal code power RSCP.
  • step S104 the signal quality thresholds required by each cell are corrected according to the pre-acquired signal quality threshold correction parameters, and the corrected signal quality thresholds of each cell are obtained, including:
  • the signal quality thresholds and signal quality threshold correction parameters required for each cell are added or subtracted to obtain the corrected signal quality thresholds of the respective cells.
  • step S104 since the signal quality threshold correction parameter is applicable to the actual scenario, when the signal quality threshold required for each cell is corrected, the corresponding addition or subtraction is required to achieve the purpose of the correction. .
  • a terminal access device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and has not been described again.
  • the term "module" can be implemented to be predetermined A combination of functional software and/or hardware.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • the device includes: a measurement module 22, a correction module 24, a determination module 26, a selection module 28, and an access module 30, where
  • the measuring module 22 is configured to measure signal quality of each cell in the pre-acquired cell list, and obtain a signal quality measurement value corresponding to each cell;
  • the correction module 24 is configured to correct the signal quality threshold required by each cell according to the pre-acquired signal quality threshold correction parameter, and obtain the corrected signal quality threshold of each cell;
  • the determining module 26 establishes a connection with the correction module 24, and is configured to compare with the signal quality measurement values of the respective cells according to the corrected signal quality thresholds of the respective cells;
  • the module 28 is connected to the measurement module 22 and the correction module 24, and is configured to select a cell whose signal quality measurement value is greater than a signal quality threshold required by the corrected cell;
  • the access module 30 establishes a connection with the selection module 28, and is configured to send an access request to the selected cell and access the selected cell.
  • FIG. 3 is a structural block diagram of a terminal access device according to a preferred embodiment of the present invention. As shown in FIG. 3, the device further includes:
  • the obtaining module 32 is configured to acquire a cell list, where the cell list is used to display each cell currently providing the communication service, before measuring the signal quality of each cell in the pre-acquired cell list.
  • FIG. 4 is a structural block diagram of a terminal access device according to a preferred embodiment of the present invention. As shown in FIG. 4, the device further includes:
  • the receiving module 34 is configured to receive a signal quality threshold correction parameter configured by the network side device before acquiring the cell list, where the signal quality threshold correction parameter is used to modify a required signal quality threshold for the cell corresponding to the cell type, where the cell type includes : Machine type communication MTC cell and non-MTC cell.
  • FIG. 5 is a structural block diagram of a terminal access device according to a preferred embodiment of the present invention.
  • the measurement module 22 is configured to measure signal quality of each cell in the cell list by: Obtaining signal quality measurements corresponding to each cell, including:
  • the first measuring unit 221 is configured to measure the signal quality of each current cell according to the signal to noise ratio of the pilot signal, and the signal to noise ratio of the pilot signal is expressed as: a ratio Ec/NO per modulation bit rate and noise spectral density;
  • the second measuring unit 222 is configured to measure the signal quality of each current cell according to the received signal code power RSCP.
  • FIG. 6 is a structural block diagram of a terminal access device according to a preferred embodiment of the present invention.
  • the correction module 24 includes:
  • the correcting unit 241 is configured to add or subtract the signal quality threshold and the signal quality threshold correction parameter required by each cell to obtain the corrected signal quality threshold of each cell.
  • FIG. 7 is a structural block diagram of a terminal access system according to an embodiment of the present invention. As shown in FIG. 7, the system includes: a machine type communication MTC device 72, a non-MTC device 74, a network side server 76, and a cell 78.
  • the MTC device 72 and the non-MTC device 74 establish a communication connection with the network side server 76 through the cell 78.
  • the cell 78 includes: a machine type communication MTC cell and a non-MTC cell.
  • the MTC device 72 and the non-MTC device 74 obtain the signal quality measurement values corresponding to the respective cells by measuring the signal quality of each cell 78 in the pre-acquired cell list, and correct the required parameters of each cell according to the pre-acquired signal quality threshold correction parameters.
  • the signal quality threshold is obtained, and the corrected signal quality threshold of each cell is compared with the signal quality threshold required by each cell, and the signal quality measurement value of each cell is compared; and the signal quality measurement value is greater than the corrected value.
  • the network side server 76 rejects the non-MTC device 74 access.
  • the embodiment of the present invention provides a method for accessing a terminal to solve the problem of how to reuse part of the spectrum of the existing network and apply the scattered spectrum to provide services for the MTC device.
  • the method provided by the embodiment of the present invention is as follows: configuring an MTC dedicated cell, the cell frequency point is a part of the spectrum of the current network or a frequency point in the scattered spectrum, setting a MTC dedicated cell quality threshold correction parameter, and notifying the user equipment to modify the cell site
  • the required quality threshold is used to preferentially select the cell when the MTC device performs cell access.
  • Step 1 measuring signal quality of each cell
  • Step 2 Select a cell whose cell measurement value is greater than a quality threshold required by the cell to form a list
  • the user equipment learns that the cell is an MTC-dedicated cell, and the quality threshold required by the cell is the quality threshold required by the configured cell, and then the MTC-dedicated cell quality threshold correction parameter is subtracted.
  • step 3 the MTC device preferentially selects an MTC dedicated cell.
  • Step 1 measuring signal quality of each cell
  • Step 2 Select a cell whose cell measurement value is greater than a quality threshold required by the cell to form a list
  • Step 3 selecting the cell with the strongest signal access
  • Step 4 The network side, according to the access request message of the non-MTC device, learns that the device is not requested to access the MTC service.
  • Step 5 The non-MTC device selects the second strongest cell access.
  • the signal quality of the measurement cell includes a pilot signal signal to noise ratio Ec/N0 or a received signal code power RSCP.
  • the method provided by the embodiment of the present invention can reuse part of the spectrum of the existing network and apply the scattered spectrum to provide services for the MTC device, reduce the network deployment cost of the operator, and does not affect the existing non-MTC service, and is compatible with the current non-MTC. device.
  • FIG. 8 shows a flow of cell access by an MTC device.
  • Step S802 the network side configures the MTC cell, and the cell frequency point is a part of the spectrum of the current network or a frequency point in the scattered spectrum.
  • the network side is a radio network controller (Radio Network Controller, RNC for short) in the 3G mobile communication, and the enhanced node B (Evolved Node B, in the 4G mobile communication) eNodeB) and network equipment in 5G mobile communication;
  • RNC Radio Network Controller
  • Step S804 the MTC device measures signal quality of each cell.
  • the signal quality of the measurement cell includes a pilot signal to noise ratio Ec/N0 or a received signal code power RSCP.
  • Step S806 the MTC device selects a cell whose measured value of the cell is greater than the quality threshold required by the cell, and forms a list;
  • the user equipment obtains the MTC dedicated cell quality threshold correction parameter, and knows that the cell is an MTC dedicated cell, and the quality threshold required by the cell is the quality threshold required by the configured cell, and then the MTC dedicated cell quality threshold correction parameter is subtracted.
  • Step S808 selecting the MTC dedicated cell access with the strongest signal in the cell list.
  • FIG. 9 is a flow of a cell access by a non-MTC device.
  • Step S902 the network side configures the MTC cell, and the cell frequency point is a part of the spectrum of the live network or a frequency point in the scattered spectrum.
  • 3G is the radio network controller RNC
  • 4G is the enhanced node B eNodeB
  • 5G is the network device
  • the user equipment is notified of the MTC dedicated cell quality threshold correction parameter;
  • Step S904 the non-MTC device measures signal quality of each cell
  • the signal quality of the measurement cell includes a pilot signal to noise ratio Ec/N0 or a received signal code power RSCP.
  • Step S906 the non-MTC device selects a cell whose measured value of the cell is greater than the quality threshold required by the cell, and forms a list;
  • Step S908 selecting the MTC dedicated cell access with the strongest signal
  • Step S910 the network side obtains, from the access message, that the UE does not request the MTC service, and denies access;
  • step S912 the non-MTC device reselects the cell with the strongest signal to access.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solutions provided by the embodiments of the present invention may be applied to network access of an MTC device.
  • the signal quality of each cell in the pre-acquired cell list is measured, and the signal quality measurement value corresponding to each cell is obtained;
  • the signal quality threshold correction parameter corrects the signal quality threshold required by each cell, and obtains the corrected signal quality threshold of each cell; according to the corrected signal quality threshold of each cell, and the signal quality measurement value of each cell Comparing; selecting a cell whose signal quality measurement value is greater than a signal quality threshold required by the corrected cell; sending an access request to the selected cell, and accessing the selected cell.
  • the problem of providing network access technology for the MTC device in the M2M network is solved, thereby implementing the access of the MTC device to the network.

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Abstract

L'invention concerne un procédé, un appareil et un système d'accès à un terminal. Le procédé consiste : à mesurer la qualité de signal de chaque cellule dans une liste de cellules pré-acquise pour obtenir une valeur de mesure de qualité de signal correspondant à chaque cellule ; à modifier un seuil de qualité de signal requis par chaque cellule selon un paramètre de modification de seuil de qualité de signal pré-acquis pour obtenir le seuil de qualité de signal modifié requis par chaque cellule ; à comparer le seuil de qualité de signal modifié requis par chaque cellule à la valeur de mesure de qualité de signal de chaque cellule ; à sélectionner une cellule dont la valeur de mesure de qualité de signal est supérieure au seuil de qualité de signal modifié requis par la cellule ; et envoyer une requête d'accès à la cellule sélectionnée et réaliser un accès à la cellule sélectionnée. La solution technique fournie par la présente invention résout le problème de fourniture de technologies d'accès à un réseau à un dispositif MTC dans un réseau machine-machine (M2M).
PCT/CN2015/079325 2014-12-17 2015-05-19 Procédé, appareil et système d'accès à un terminal WO2016095424A1 (fr)

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