WO2016146014A1 - Procédé et appareil de réglage de fréquence appliqués à des communications mobiles - Google Patents

Procédé et appareil de réglage de fréquence appliqués à des communications mobiles Download PDF

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Publication number
WO2016146014A1
WO2016146014A1 PCT/CN2016/076033 CN2016076033W WO2016146014A1 WO 2016146014 A1 WO2016146014 A1 WO 2016146014A1 CN 2016076033 W CN2016076033 W CN 2016076033W WO 2016146014 A1 WO2016146014 A1 WO 2016146014A1
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target cell
mobile communication
network device
communication network
rate
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PCT/CN2016/076033
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English (en)
Chinese (zh)
Inventor
白炜
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北京佰才邦技术有限公司
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Priority claimed from CN201510122354.8A external-priority patent/CN104735716B/zh
Application filed by 北京佰才邦技术有限公司 filed Critical 北京佰才邦技术有限公司
Publication of WO2016146014A1 publication Critical patent/WO2016146014A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters

Definitions

  • the present invention relates to the field of communications, and in particular to a frequency adjustment method and apparatus for use in mobile communications.
  • a mobile communication system refers to an operator providing communication services for user terminals (such as mobile phones) by deploying radio access network devices (such as base stations) and core network devices (such as Home Location Registers, HLRs). system.
  • Mobile communication has experienced the first generation, the second generation, the third generation, and the fourth generation.
  • the first generation of mobile communication refers to the original analog, voice-only cellular phone standard, mainly using analog technology and Frequency Division Multiple Access (FDMA) access method;
  • second generation mobile Communication introduces digital technology to improve network capacity, improve voice quality and confidentiality, with Global System for Mobile Communication (GSM) and Code Division Multiple Access (Code Division Multiple Access).
  • GSM Global System for Mobile Communication
  • Code Division Multiple Access Code Division Multiple Access
  • third-generation mobile communication mainly refers to Code Division Multiple Access (CDMA) 2000, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access).
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • 3GPP 3rd Generation Partnership of the International Organization for Standardization. Project, abbreviated as 3GPP
  • LTE/LTE-A Long Term Evolution/Long Term Evolution-Advanced
  • OFDMA Orthogonal Frequency Division Multiple Access
  • FIG. 1 is a schematic diagram of a basic architecture of a mobile communication network. As shown in FIG. 1, a basic architecture of a mobile communication network is schematically illustrated.
  • each base station covers a certain spatial range, which is called a cell or a sector; when the user terminal enters the coverage of a certain base station, the base station serves the user; when the user moves from the coverage of a base station to When the coverage of another base station is reached, the user needs to perform cell handover to maintain continuity of communication.
  • 2 is a schematic diagram of a conventional cellular mobile communication.
  • WiFi Wireless Fidelity
  • 802.11a/g/n/ac Wireless Fidelity
  • WiFi is mainly used for local wireless communication, and the coverage is relatively small, which is a simple and relatively low-cost wireless communication means. Since the WiFi design was initially positioned to provide local wireless LAN services, and its wireless communication device is directly directed to the end user, an unlicensed band that can be used free of charge is used. The original version of WiFi works at 2.4 GHz, but because of the small available bandwidth in the 2.4 GHz band, there are more wireless transmitting devices operating in the 2.4 GHz band, resulting in more WiFi performance at 2.4 GHz has degraded.
  • WiFi has discovered a new communication frequency of 5 GHz in later versions (Note: 5 GHz described here does not refer to a single frequency point, but refers to each frequency band around 5 GHz, which can be understood as from 4.9 GHz to 5.9 GHz.
  • 5 GHz In the 5 GHz band, the 5 GHz has the characteristics of wide available frequency spectrum, continuous spectrum, and few interference sources.
  • the most advanced 802.11ac technology can use 160 MHz bandwidth communication at 5 GHz to achieve an air interface transmission rate close to 1 Gbps.
  • the 5 GHz band has the above advantages, the 5.25 to 5.35 GHz and 5.47 to 5.725 GHz are the operating bands of the global radar system. In order to avoid interference with the radar system by the wireless communication devices operating in the 5 GHz band, the requirements of these devices are excluded. In addition to conventional items such as power and spectrum, the requirements for Dynamic Frequency Selection (DFS) are also added.
  • DFS Dynamic Frequency Selection
  • Dynamic frequency selection refers to a method in which a wireless communication device selects a frequency that can be used for transmission and reception by detecting the quality of a plurality of channels.
  • a wireless communication device selects a frequency that can be used for transmission and reception by detecting the quality of a plurality of channels.
  • countries all over the world have put forward basically the same requirements for wireless communication equipment working at 5 GHz frequency. Table 1 below is the requirement for DFS.
  • LTE/LTE-A For mobile communications, although the fourth-generation mobile communication system LTE/LTE-A can already support higher data transmission rates, with the emergence of various mobile Internet applications, the demand for mobile data traffic is increasing. . In order to address the growing demand for data traffic and the growing shortage of radio frequencies, 3GPP has also begun research on the application of LTE systems in unlicensed bands to increase the available bandwidth for LTE systems. The target unlicensed band currently discussed by the 3GPP also focuses on 5 GHz.
  • the LTE system since the LTE system is currently considering communication on the 5 GHz unlicensed band, it will also be subject to mandatory requirements for supporting DFS functions.
  • WiFi since it is currently mainly used for local wireless LAN access to provide broadband data transmission, and the process of connection establishment is relatively simple, the requirements of DFS will not be seriously affected.
  • an LTE system with a mobile communication gene since one base station connects multiple user terminals and has a relatively complicated access and authentication process, if only the simplest disconnection is used, the frequency is adjusted, and the frequency is changed again. If the DFS is connected, it will cause a poor user experience for users who are communicating/talking, causing problems such as disconnection, data download failure, and the like.
  • any existing mobile communication system including the LTE system does not support dynamic frequency selection because the previously used licensed frequency bands do not need to circumvent the interference from devices of other systems.
  • the main object of the present invention is to provide a frequency adjustment method and apparatus for use in mobile communication to solve the problem that the mobile communication system does not support dynamic frequency adjustment in the prior art.
  • a frequency adjustment method applied in mobile communication is provided.
  • the frequency adjustment method applied in mobile communication includes: the mobile communication network device acquires monitoring parameters of the target cell, wherein the target cell is any cell under the monitoring area of the mobile communication network device, The monitoring parameter indicates the monitored interference level from the target device to the target cell, the target device is a device different from the mobile communication network device; the mobile communication network device determines whether the monitoring parameter is lower than a predetermined threshold; and the mobile communication network device triggers adjusting an operating frequency of the target cell if it is determined that the monitoring parameter is lower than the predetermined threshold.
  • the monitoring parameter includes: a compliance rate of the guaranteed rate service in the target cell, a correct rate of the target cell transmission data packet, an interference level of the target cell, or the target cell works on the unlicensed frequency band.
  • the time ratio is the ratio of the first duration to the second duration, the first duration is the working duration of the target cell on the unlicensed frequency band, and the second duration is the opposite The duration of the monitoring time window in which the target cell performs monitoring.
  • the acquiring, by the mobile communication network device, the monitoring parameter of the target cell includes: the mobile communication network device monitoring each of the guaranteed rate services the bit rate; the mobile communication network device determines a guaranteed rate of actual service bit rate W i V i V i reaches the target rate guaranteed service rate of the W i ', where, i takes 1 sequentially to n, n being the said target cell within the total number of guaranteed service rate; communication network if the mobile device determines that the actual bit rate reaches the target rate V i V i 'is determined to ensure that the service rate W i And the mobile communication network device calculates a ratio of the number of the guaranteed rate services that meets the standard to the total number of the guaranteed rate services in the target cell, and obtains a standard of the guaranteed rate service in the target cell. rate.
  • the acquiring, by the mobile communication network device, the monitoring parameter of the target cell includes: acquiring, by the mobile communication network device, the target cell in a target time period The total number of transmissions and the number of successful transmissions of the data transmission within the network; and the ratio of the number of successful transmissions to the total number of transmissions by the mobile communication network device to obtain the correct rate of the data packet transmitted by the target cell.
  • the data transmission includes an uplink transmission, where the mobile communication network device calculates a ratio of the number of successful transmissions to the total number of transmissions, and obtains a correct rate of the target cell transmission data packet, the mobile communication
  • the acquiring, by the network device, the monitoring parameter of the target cell further includes: the mobile communication network device acquiring physical layer receiving and demodulating of the mobile communication network device; and determining, by the mobile communication network device, whether the physical layer receiving demodulation is successful; When the mobile communication network device determines that the physical layer receives the demodulation successfully, it determines that the uplink transmission is successful.
  • the data transmission includes a downlink transmission, where the mobile communication network device calculates a ratio of the number of successful transmissions to the total number of transmissions, and obtains a correct rate of the target cell transmission data packet, the mobile communication
  • the acquiring, by the network device, the monitoring parameter of the target cell further includes: the mobile communication network device acquiring the physical layer receiving the demodulation feedback of the target terminal, wherein the target terminal is the terminal performing the downlink transmission with the mobile communication network device; Determining, by the mobile communication network device, whether the demodulation feedback is received by the physical layer is an ACK; and determining, by the mobile communication network device, that the physical layer receives demodulation feedback as the ACK, determining the downlink transmission success.
  • the mobile communication network when the monitoring parameter is an interference level of the target cell, the mobile communication network is configured
  • the monitoring parameter of the target cell includes: the mobile communication network device determines that the uplink interference power of the target cell is an uplink interference level of the target cell; and the mobile communication network device receives the power according to the reference signal reported by the target terminal. And determining, by the reference signal reception quality, a downlink interference level of the target cell, wherein the target terminal is a terminal that communicates with the mobile communication network device; and the mobile communication network device calculates the uplink interference level and the The average of the downlink interference levels is obtained as the interference level of the target cell.
  • the acquiring, by the mobile communication network device, the monitoring parameter of the target cell includes: acquiring, by the mobile communication network device, the first duration And the second duration; and the mobile communication network device calculates a ratio of the first duration to the second duration to obtain a proportion of time that the target cell works on the unlicensed frequency band.
  • a frequency adjustment apparatus for use in mobile communication which frequency adjustment apparatus can be used to perform any of the applications provided by the above-described contents of the present invention on a mobile Frequency adjustment method in communication.
  • the frequency adjustment apparatus applied in the mobile communication according to the present invention is applied to a mobile communication network device, and the frequency adjustment apparatus includes: an acquisition unit, configured to acquire a monitoring parameter of the target cell, wherein the target cell is in the mobile Any one of the cells under the monitoring area of the communication network device, the monitoring parameter indicating the monitored interference level from the target device to the target cell, the target device being a device different from the mobile communication network device; a unit, configured to determine whether the monitoring parameter is lower than a predetermined threshold, and a triggering unit, configured to trigger to adjust an operating frequency of the target cell if it is determined that the monitoring parameter is lower than the predetermined threshold.
  • the monitoring parameter includes: a compliance rate of the guaranteed rate service in the target cell, a correct rate of the target cell transmission data packet, an interference level of the target cell, or the target cell works on the unlicensed frequency band.
  • the time ratio is the ratio of the first duration to the second duration, the first duration is the working duration of the target cell on the unlicensed frequency band, and the second duration is the opposite The duration of the monitoring time window in which the target cell performs monitoring.
  • the acquiring unit includes: a monitoring module, configured to monitor a bit rate of each of the guaranteed rate services; and a first determining module, the actual bit rate for determining V i W i guaranteed rate traffic has reached the target rate guaranteed service rate of the W i V i ', where, i takes 1 sequentially to n, n being the target cell within the guaranteed rate the total number of service; a first determining module configured to in a case where it is determined that the actual bit rate reaches the target rate V i V i 'to determine the service rate guarantee compliance W i; and a first calculation module And calculating a ratio of the number of the guaranteed rate services that meet the target to the total number of the guaranteed rate services in the target cell, and obtaining a compliance rate of the guaranteed rate service in the target cell.
  • the acquiring unit includes: a first acquiring module, configured to acquire a total transmission of data transmission of the target cell in a target time period The number of times and the number of successful transmissions; and a second calculation module, configured to calculate a ratio of the number of successful transmissions to the total number of transmissions, to obtain a correct rate of the target cell transmission data packet.
  • the data transmission includes an uplink transmission
  • the acquiring unit further includes: a second acquiring module, configured to calculate, by the second calculating module, a ratio of the number of successful transmissions to the total number of transmissions, to obtain the Acquiring the physical layer receiving demodulation of the mobile communication network device before the correct rate of the data packet is transmitted by the target cell; the second determining module is configured to determine whether the physical layer receiving demodulation is successful; and the second determining module is configured to: When it is determined that the physical layer receives the demodulation successfully, it is determined that the uplink transmission is successful.
  • the data transmission includes a downlink transmission
  • the acquiring unit further includes: a third acquiring module, configured to calculate, by the second calculating module, a ratio of the number of successful transmissions to the total number of transmissions, to obtain the Before the target cell transmits the correct rate of the data packet, the physical layer of the target terminal receives the demodulation feedback, where the target terminal is the terminal that performs the downlink transmission with the mobile communication network device, and the third determining module is configured to: Determining whether the physical layer receives the demodulation feedback is an ACK; and the third determining module is configured to determine that the downlink transmission is successful if it is determined that the physical layer receives the demodulation feedback as the ACK.
  • the acquiring unit includes: a fourth determining module, configured to determine that the uplink interference power of the target cell is an uplink interference level of the target cell a fifth determining module, configured to determine a downlink interference level of the target cell according to a reference signal received power and a reference signal received quality reported by the target terminal, where the target terminal is a terminal that communicates with the mobile communication network device And a third calculating module, configured to calculate an average of the uplink interference level and the downlink interference level, to obtain an interference level of the target cell.
  • the acquiring unit includes: a fourth acquiring module, configured to acquire the first duration and the second duration, when the monitoring parameter is a time ratio of the target cell working on the unlicensed frequency band; And a fourth calculating module, configured to calculate a ratio of the first duration to the second duration, to obtain a proportion of time that the target cell works on the unlicensed frequency band.
  • the device is a base station of the mobile communication network device.
  • a monitoring parameter of a target cell is acquired by using a mobile communication network device, wherein the target cell is any cell under the monitoring area of the mobile communication network device, and the monitoring parameter indicates that the monitored target device is from the target device.
  • the interference level of the target cell, the target device is a device that is different from the mobile communication network device; the mobile communication network device determines whether the monitoring parameter is lower than a predetermined threshold; and the mobile communication network device When it is determined that the monitoring parameter is lower than the predetermined threshold, triggering adjustment of an operating frequency of the target cell.
  • the mobile communication system capable of working in the unlicensed frequency band is realized.
  • the flexible support of dynamic frequency selection and adjustment solves the problem that the mobile communication system does not support dynamic frequency adjustment in the prior art, thereby achieving the effect of improving the flexibility of the mobile communication system in the license-free frequency band, and operating using the mobile communication system. Operators are more flexible in network planning on the unlicensed band to avoid interference.
  • FIG. 1 is a schematic diagram of a basic architecture of a mobile communication network
  • FIG. 2 is a schematic diagram of a conventional cellular mobile communication
  • FIG. 3 is a flowchart of a frequency adjustment method applied in mobile communication according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a frequency adjustment apparatus applied in mobile communication according to an embodiment of the present invention.
  • the specific technology of the mobile communication described in the embodiments of the present invention is not limited, and may be WCDMA, CDMA2000, TD-SCDMA, Worldwide Interoperability for Microwave Access (Wimax), LTE/LTE-A, and subsequent The fifth, sixth and Nth generation mobile communication technologies.
  • the terminal described in this alternative embodiment refers to a terminal side product that can support a communication protocol of a land mobile communication system, and a modem module (Wireless Modem) of a special communication, which can be various types such as a mobile phone, a tablet computer, and a data card.
  • the terminal form is integrated to complete the communication function.
  • FIG. 3 is a flowchart of a frequency adjustment method applied in mobile communication according to an embodiment of the present invention.
  • the frequency adjustment method of the application in mobile communication includes the following steps S102 to S106:
  • Step S102 The mobile communication network device acquires the monitoring parameter of the target cell, where the target cell is any cell under the monitoring area of the mobile communication network device, and the monitoring parameter indicates the monitored interference level from the target device to the target cell, and the target The device is a device that is different from the mobile communication network device. Specifically, the mobile communication network device obtains monitoring parameters of interest by monitoring the overall communication state of the cell of the target cell, and the monitoring parameters may be used to describe the overall target cell. Satisfactory situation, reflecting that the target is less than the interference level to the target device, the so-called target device refers to any other device that is different from the mobile communication network device.
  • Step S104 The mobile communication network device determines whether the monitoring parameter is lower than a predetermined threshold.
  • Step S106 The mobile communication network device triggers to adjust the working frequency of the target cell when it is determined that the monitoring parameter is lower than a predetermined threshold. Specifically, the mobile communication network device may trigger the adjustment of the working frequency of the target cell by using a sending command. In an optional embodiment, the mobile communication network device may send a trigger command to the target cell, and the working frequency of the target cell is determined by the current The operating frequency is adjusted to a frequency that is different from the current operating frequency.
  • the frequency adjustment method applied in the mobile communication acquires the monitoring parameter indicating the overall communication state of the cell of the target cell, and triggers the adjustment of the target cell when the monitoring parameter is lower than a predetermined threshold.
  • the working frequency realizes that the mobile communication system working in the unlicensed frequency band can flexibly support dynamic frequency selection and adjustment, and solves the problem that the mobile communication system does not support dynamic frequency adjustment in the prior art, thereby improving the mobile communication system.
  • the flexibility of the unlicensed band enables operators using mobile communication systems to operate more flexibly on the unlicensed band to avoid interference.
  • the monitoring parameter may be any one of the following parameters: a rate of compliance of a guaranteed rate service (GBR) in the target cell, a correct rate of the data packet transmitted by the target cell, and interference of the target cell.
  • GRR guaranteed rate service
  • the predetermined threshold includes a threshold corresponding to different monitoring parameters, and may be set according to actual needs in the actual application process.
  • the predetermined threshold may be taken as 85%; for the case where the monitoring parameter is the correct rate of the data packet transmitted by the target cell, the predetermined threshold may be taken as 70%; for the case where the monitoring parameter is the interference level of the target cell, the predetermined threshold may be taken as -70dbm; The parameter is the proportion of the time that the target cell operates on the unlicensed band, and the predetermined threshold may be 0.3 or 0.5.
  • the following specifically combines different monitoring parameters to illustrate the specific manner in which the mobile communication network device acquires the monitoring parameters of the target cell:
  • the mobile communication system classifies the service when each service is established, and is classified into a guaranteed rate service (GBR) and a non-guaranteed rate service (non- GBR).
  • GRR guaranteed rate service
  • non- GBR non-guaranteed rate service
  • the mobile communication network device monitors the bit rate of each guaranteed rate service; the mobile communication network device determines the guarantee the actual bit rate V i W i of traffic rate reaches the target rate-guaranteed service rate of the W i V i ', where, i order to get a total number n, n being the target cell guaranteed service rate; mobile communication network device Determining that the guaranteed rate service W i is up to the standard in the case where it is determined that the actual bit rate V i reaches the target rate V i '; and the mobile communication network device calculates the number of guaranteed rate services that determine the compliance and the total guaranteed rate service in the target cell The ratio of the number is obtained, and the compliance rate of the guaranteed rate service in the target cell is obtained.
  • Table 2 below shows the classification of GBR services and the guaranteed rates of various services in the LTE system:
  • the mobile communication network device may acquire the total number of transmissions and the number of successful transmissions of the data transmission of the target cell in the target time period, and then calculate the number of successful transmissions and the total number of transmissions. Proportion, the correct rate of the data packet transmitted by the target cell is obtained.
  • the data transmission includes an uplink transmission and a downlink transmission.
  • the mobile communication network device calculates the ratio of the number of successful transmissions to the total number of transmissions, and obtains the correct rate of the target cell transmission data packet, and the mobile communication network device acquires the target cell.
  • the monitoring parameters further include: the mobile communication network device acquires the physical layer receiving demodulation of the mobile communication network device; the mobile communication network device determines whether the physical layer receives the demodulation successfully; and the mobile communication network device determines that the physical layer receives the demodulation successfully. In the case, it is determined that the uplink transmission is successful.
  • the LTE base station For each upload transmission, the LTE base station needs to count the physical layer receiving demodulation. Row data, if correctly demodulated, is marked as successful, and vice versa as failure. The base station side counts all transmissions over a period of time, using all the correct transmission times and the proportion of all transmission times as the monitoring parameters.
  • the monitoring parameter of the mobile communication network device acquiring the target cell further includes: the mobile communication network device acquires the target.
  • the physical layer of the terminal receives demodulation feedback, wherein the target terminal is a terminal that performs downlink transmission with the mobile communication network device; the mobile communication network device determines whether the physical layer receives demodulation feedback is an ACK; and the mobile communication network device determines the physical layer When the demodulation feedback is received as an ACK, it is determined that the downlink transmission is successful.
  • each transmission lasts for 1 ms.
  • the base station of the LTE system needs to receive the demodulation feedback from the physical layer of the statistical terminal. If it is ACK, it is considered successful, and if it is NACK, it is considered as failure.
  • the specific manner in which the mobile communication network device acquires the monitoring parameter of the target cell is:
  • the mobile communication network device determines that the uplink interference power of the target cell is the uplink interference level of the target cell.
  • the base station side can perform statistics on the uplink signal interference noise ratio (SINR), and calculate the final The level of interference.
  • SINR uplink signal interference noise ratio
  • the mobile communication network device determines the downlink interference level of the target cell according to the reference signal received by the target terminal (Reference Signal Received Power, RSRP for short) and the reference signal received quality (RSRQ), wherein the target terminal A terminal that communicates with a mobile communication network device.
  • the specific calculation manner of the downlink interference level is: the mobile communication network device first receives the reference signal received power RSRP and the reference signal received quality RSRQ reported by the target terminal; and then calculates the mobile communication according to the reference signal received power RSRP and the reference signal received quality RSRQ.
  • the mobile communication network device calculates an average of the uplink interference level and the downlink interference level to obtain an interference level of the target cell.
  • the uplink interference level and the downlink interference level if it is from multiple terminals, it is necessary to average the multiple uplink interference levels first, and average the multiple downlink interference levels.
  • the monitoring parameter of the mobile communication network device acquiring the target cell includes: the mobile communication network device acquiring the working duration of the target cell on the unlicensed frequency band as the first duration, And obtaining a monitoring time window for monitoring the target cell as the second duration, where the length of the monitoring time window for monitoring the target cell is the longest duration of the target cell in the unlicensed band; and then calculating the first The ratio of the duration to the second duration gives the proportion of time the target cell is operating on the unlicensed band. For example, if the target cell works for 30 seconds in an unlicensed band, and the target cell can use the maximum length of the unlicensed band for 60 seconds, the monitoring parameter is 0.5.
  • the embodiment of the invention also provides a frequency adjusting device applied in mobile communication.
  • the device may be used in a mobile communication network device, and the frequency adjustment device in the mobile communication provided by the embodiment of the present invention is used to perform the frequency adjustment method in the mobile communication provided by the embodiment of the present invention.
  • the frequency adjustment method of the application in the mobile communication can also be performed by the frequency adjustment apparatus applied in the mobile communication provided by the embodiment of the present invention.
  • the frequency adjustment apparatus of the application in mobile communication mainly includes an acquisition unit 10, a determination unit 20, and a trigger unit 30. ,among them:
  • the acquiring unit 10 is configured to acquire monitoring parameters of the target cell, where the target cell is any cell under the monitoring area of the mobile communication network device, and the monitoring parameter indicates the monitored interference level from the target device to the target cell, where the target
  • the device is a device that is different from the mobile communication network device.
  • the mobile communication network device obtains monitoring parameters of interest by monitoring the overall communication state of the cell of the target cell, and the monitoring parameters may be used to describe the overall target cell. Satisfactory situation, reflecting that the target is less than the interference level to the target device, the so-called target device refers to any other device that is different from the mobile communication network device.
  • the determining unit 20 is configured to determine whether the monitoring parameter is lower than a predetermined threshold.
  • the triggering unit 30 is configured to trigger an adjustment of the operating frequency of the target cell if it is determined that the monitoring parameter is lower than a predetermined threshold.
  • the mobile communication network device may trigger the adjustment of the working frequency of the target cell by using a sending command.
  • the mobile communication network device may send a trigger command to the target cell, and the working frequency of the target cell is determined by the current The operating frequency is adjusted to a frequency that is different from the current operating frequency.
  • the frequency adjustment apparatus applied in the mobile communication acquires the monitoring parameter indicating the overall communication state of the cell of the target cell, and triggers the adjustment of the target cell when the monitoring parameter is lower than a predetermined threshold.
  • the working frequency realizes that the mobile communication system working in the unlicensed frequency band can flexibly support dynamic frequency selection and adjustment, and solves the problem that the mobile communication system does not support dynamic frequency adjustment in the prior art, thereby improving the mobile communication system.
  • the flexibility of the unlicensed band enables operators using mobile communication systems to operate more flexibly on the unlicensed band to avoid interference.
  • the monitoring parameter may be any one of the following parameters: a rate of compliance of a guaranteed rate service (GBR) in the target cell, a correct rate of the data packet transmitted by the target cell, and interference of the target cell.
  • GRR guaranteed rate service
  • the predetermined threshold includes a threshold corresponding to different monitoring parameters, and may be set according to actual needs in the actual application process.
  • the predetermined threshold may be taken as 85%; for the case where the monitoring parameter is the correct rate of the data packet transmitted by the target cell, the predetermined threshold may be taken as 70%; for the case where the monitoring parameter is the interference level of the target cell, the predetermined threshold may be taken as -70dbm; The parameter is the proportion of the time that the target cell operates on the unlicensed band, and the predetermined threshold may be 0.3 or 0.5.
  • the structural components of the acquisition unit 10 are specifically described below in combination with different monitoring parameters:
  • the mobile communication system classifies the service when each service is established, and is classified into a guaranteed rate service (GBR) and a non-guaranteed rate service (non- GBR).
  • GRR guaranteed rate service
  • non- GBR non-guaranteed rate service
  • the system needs to record all guaranteed rate services and record the guaranteed bit rate of the service.
  • it is monitored whether each guaranteed rate service has reached its target rate, and if not, it is recorded as a non-compliant service. For a period of time, the ratio of all the guaranteed guaranteed rate services and the total guaranteed rate services is used as the overall satisfaction parameter.
  • the obtaining unit 10 mainly includes a monitoring module, a first determining module, a first determining module, and a first calculation module, wherein each monitoring module for monitoring the rate of guaranteed bit rate service; a first determining means for determining an actual bit rate V i W i guaranteed rate traffic has reached a target rate-guaranteed service rate of the W i V i ' , where, i order to get the total number n, n being the target cell is a guaranteed rate traffic; means for determining a first determined in a case where the actual bit rate reaches the target rate V i V i 'to determine a guaranteed rate
  • the service W i is up to standard; the first calculation module is configured to calculate a ratio of the number of guaranteed rate services that meet the standard to the total number of guaranteed rate services in the target cell, and obtain a compliance rate of the guaranteed rate service in the target cell.
  • Table 2 above takes the LTE system as an example to show the classification of GBR services and the guaranteed rate of various services.
  • the acquiring unit 10 mainly includes a first acquiring module and a second calculating module, where the first acquiring module is configured to acquire data transmission of the target cell in the target time period. The total number of transmissions and the number of successful transmissions; the second calculation module is used to calculate the ratio of the number of successful transmissions to the total number of transmissions, and obtain the correct rate of the data packets transmitted by the target cell.
  • the data transmission includes an uplink transmission and a downlink transmission.
  • the acquiring unit 10 further includes a second acquiring module, a second determining module, and a second determining module, where the second computing module calculates the number of successful transmissions and the total number of transmissions.
  • the second obtaining module is configured to obtain physical layer receiving and demodulating of the mobile communication network device;
  • the second determining module is configured to determine whether the physical layer receiving demodulation is successful;
  • the second determining module is configured to determine that the uplink transmission is successful.
  • the LTE base station For each upload transmission, the LTE base station needs to count the uplink data of the physical layer receiving the demodulation, and if it is correctly demodulated, it is recorded as successful, and vice versa as failure.
  • the base station side counts all transmissions over a period of time, using all the correct transmission times and the proportion of all transmission times as the monitoring parameters.
  • the obtaining unit 10 further includes a third obtaining module, a third determining module, and a third determining module, where the second calculating module calculates the ratio of the number of successful transmissions to the total number of transmissions, and obtains the correct rate of the target cell transmission data packet.
  • the third obtaining module is configured to obtain a physical layer receiving demodulation feedback of the target terminal, where the target terminal is a terminal that performs downlink transmission with the mobile communication network device, and the third determining module is configured to determine whether the physical layer receives the demodulation feedback as an ACK.
  • the third determining module determines that the physical layer receives the demodulation feedback as an ACK
  • the third determining module is configured to determine that the downlink transmission is successful.
  • each transmission lasts for 1 ms.
  • the base station of the LTE system needs to receive the demodulation feedback from the physical layer of the statistical terminal. If it is ACK, it is considered successful, and if it is NACK, it is considered as failure.
  • the obtaining unit 10 includes a fourth determining module, a fifth determining module, and a third calculating module respectively performing the following corresponding functions:
  • the fourth determining module is configured to determine the uplink interference level of the target cell as the uplink interference level of the target cell.
  • the base station side may perform statistics on the uplink signal interference noise ratio (SINR), and calculate the final The level of interference.
  • SINR uplink signal interference noise ratio
  • the fifth determining module is configured to determine a downlink interference level of the target cell according to a Reference Signal Received Power (RSRP) and a Reference Signal Received Quality (RSRQ) reported by the target terminal, where the target terminal A terminal that communicates with a mobile communication network device.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • the specific calculation manner of the downlink interference level is: the mobile communication network device first receives the reference signal received power RSRP and the reference signal received quality RSRQ reported by the target terminal; and then calculates the mobile communication according to the reference signal received power RSRP and the reference signal received quality RSRQ.
  • the third calculation module is configured to calculate an average of the uplink interference level and the downlink interference level to obtain an interference level of the target cell.
  • the uplink interference level and the downlink interference level if it is from multiple terminals, it is necessary to average the multiple uplink interference levels first, and average the multiple downlink interference levels.
  • the obtaining unit 10 includes a fourth acquiring module and a fourth calculating module, where the fourth acquiring module is configured to obtain the target cell in the unlicensed band.
  • the duration is used as the first duration
  • the duration of the monitoring time window for monitoring the target cell is obtained as the second duration, wherein the length of the monitoring time window for monitoring the target cell is the longest duration of the target cell in the unlicensed band.
  • the fourth calculation module is configured to calculate a ratio of the first duration to the second duration, and obtain a proportion of time that the target cell works on the unlicensed band. For example, if the target cell works for 30 seconds in an unlicensed band, and the target cell can use the maximum length of the unlicensed band for 60 seconds, the monitoring parameter is 0.5.
  • the frequency adjustment apparatus applied in the mobile communication may be a base station in the mobile communication network equipment, and in the unlicensed frequency band, there are other solutions to meet the regulations and the frequency band.
  • Complex interference environments such as Listening Before Talk (LBT), Discontinuous Transmission (DTX), Carrier Selection, and so on. While these techniques may also be applied in mobile communications, the triggering conditions for dynamic frequency selection proposed by the present invention are equally applicable to the three techniques mentioned herein.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the unit described as a separate component may or may not be physically separated as a unit display
  • the illustrated components may or may not be physical units, ie may be located in one place or may be distributed over multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, mobile terminal, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

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

Abstract

L'invention concerne un procédé et un appareil de réglage de fréquence appliqués à des communications mobiles. Le procédé de réglage de fréquence appliqué à des communications mobiles comprend les opérations suivantes : un dispositif de réseau de communication mobile acquiert un paramètre de surveillance d'une cellule cible, la cellule cible étant toute cellule dans une zone de surveillance du dispositif de réseau de communication mobile, le paramètre de surveillance indiquant le niveau d'un brouillage surveillé de la cellule cible à un dispositif cible, et le dispositif cible étant un dispositif différent du dispositif de réseau de communication mobile ; le dispositif de réseau de communication mobile détermine si le paramètre de surveillance est ou non inférieur à une valeur de seuil préétablie ; et le dispositif de réseau de communication mobile déclenche le réglage de la fréquence de travail de la cellule cible dans le cas dans lequel le paramètre de surveillance est déterminé comme étant inférieur à la valeur de seuil préétablie. Au moyen de la présente invention, le problème dans l'état antérieur de la technique selon lequel un système de communication mobile ne prend pas en charge un ajustement de fréquence dynamique, est résolu, permettant ainsi d'obtenir l'effet d'amélioration de la flexibilité du système de communication mobile sur une bande de fréquences autorisée.
PCT/CN2016/076033 2015-03-19 2016-03-10 Procédé et appareil de réglage de fréquence appliqués à des communications mobiles WO2016146014A1 (fr)

Applications Claiming Priority (2)

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CN201510122354.8A CN104735716B (zh) 2015-01-06 2015-03-19 应用在移动通信中的频率调整方法和装置
CN201510122354.8 2015-03-19

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CN113411148A (zh) * 2020-03-17 2021-09-17 中国移动通信集团福建有限公司 移频方法、装置、电子设备及存储介质
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