WO2014161335A1 - Procédé, dispositif, terminal et support de stockage informatique pour le transfert de communication interne - Google Patents

Procédé, dispositif, terminal et support de stockage informatique pour le transfert de communication interne Download PDF

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Publication number
WO2014161335A1
WO2014161335A1 PCT/CN2013/088096 CN2013088096W WO2014161335A1 WO 2014161335 A1 WO2014161335 A1 WO 2014161335A1 CN 2013088096 W CN2013088096 W CN 2013088096W WO 2014161335 A1 WO2014161335 A1 WO 2014161335A1
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WIPO (PCT)
Prior art keywords
carrier frequency
internal communication
communication
backup
module
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Application number
PCT/CN2013/088096
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English (en)
Chinese (zh)
Inventor
宿美春
安洋
刘婷
张明昊
Original Assignee
中兴通讯股份有限公司
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Publication of WO2014161335A1 publication Critical patent/WO2014161335A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point

Definitions

  • the present invention relates to mobile communication technologies, and in particular, to a method, an apparatus, a terminal, and a computer storage medium for switching internal communication. Background technique
  • a wireless network even if two user equipments (UE, User Equipment) are in close proximity, communication control must be performed through a central controller such as a base station, including control of transmission power and allocation of used resources.
  • a central controller such as a base station
  • Such a centralized control system facilitates resource management and interference control, but the use of resources is not very efficient. Therefore, in order to improve the efficiency of spectrum utilization and achieve higher system throughput, a device-to-device communication (D2D, Device-to-Device communication) is proposed in the LTE-Advanced (Long Term Evolution Advanced) system. Mode.
  • LTE-Advanced Long Term Evolution Advanced
  • the main purpose of the embodiment of the present invention is to provide an internal communication switching method
  • the device, the terminal and the computer storage medium are used to solve the problem that the internal communication in the hybrid network is easily interfered by the communication signal of the wireless network, and overcome the phenomenon that the internal communication is dropped due to being interfered.
  • the embodiment of the present invention provides a method for switching internal communication, where the method includes: when detecting that the interference of the carrier frequency of the current internal communication exceeds a set threshold, sending a notification message for selecting internal carrier frequency for internal communication;
  • the communication carrier channel is established by using the backup carrier frequency, and the communication channel of the backup carrier frequency is established.
  • the method further includes:
  • the wireless network communication service is initiated using the carrier frequency before switching to the alternate carrier frequency.
  • the determining to switch to the backup carrier frequency includes:
  • a notification message of successful handover to the alternate carrier frequency is received, and it is determined to switch to the alternate carrier frequency.
  • the determining to switch to the backup carrier frequency includes:
  • a notification message of the alternate carrier frequency is received, and it is determined to switch to the alternate carrier frequency.
  • the interference detected by the carrier frequency of the current internal communication exceeds a set threshold, and includes:
  • the interference detected by the carrier frequency of the current internal communication exceeds a set threshold, and includes:
  • the embodiment of the invention further provides a method for switching internal communication, the method comprising: when detecting that the interference of the carrier frequency of the current internal communication exceeds a set threshold, sending an alternate carrier frequency for internal communication to the terminal of the internal communication Notification message; Determining, when the terminal switches to the backup carrier frequency, establishing a communication channel with the terminal by using the backup carrier frequency, and transmitting a communication service with the terminal by using the established backup carrier frequency channel.
  • the method further includes:
  • the communication with the wireless network is initiated using the carrier frequency before the terminal switches to the standby carrier frequency.
  • the determining that the terminal switches to the backup carrier frequency comprises:
  • the determining that the terminal switches to the backup carrier frequency comprises: receiving a notification message of the backup carrier frequency sent by the terminal, and determining that the terminal switches to the standby carrier frequency.
  • the interference detected by the carrier frequency of the current internal communication exceeds a set threshold, and includes:
  • the interference detected by the carrier frequency of the current internal communication exceeds a set threshold, and includes:
  • the embodiment of the present invention further provides an internal communication switching device, where the device includes: a detection module, a message sending module, a determining module, and an internal communication module, where
  • the detecting module is configured to detect whether the interference received by the carrier frequency of the current internal communication exceeds a set threshold, and trigger the message sending module when the interference of the carrier frequency of the internal communication exceeds a set threshold;
  • the message sending module is configured to send a notification that uses an alternate carrier frequency for internal communication Interest rate
  • the determining module is configured to determine whether to switch to the standby carrier frequency, and trigger the internal communication module when determining to switch to the standby carrier frequency;
  • the internal communication module is configured to establish a communication channel by using the backup carrier frequency, and perform communication service by using the established backup carrier frequency channel.
  • the apparatus further comprises a wireless network communication module configured to initiate a wireless network communication service.
  • the device further includes:
  • a receiving module configured to receive a notification message of the standby carrier frequency
  • the determining module is further configured to:
  • the receiving module When the receiving module receives the notification message sent by the terminal and successfully switches to the backup carrier frequency, it is determined to switch to the backup carrier frequency.
  • the device further includes:
  • a receiving module configured to receive a notification message of the standby carrier frequency
  • the determining module is further configured to:
  • the detecting module is further configured to:
  • the detecting module is further configured to:
  • the embodiment of the invention further provides a terminal, including the switching device of the internal communication described above.
  • An embodiment of the present invention further provides a computer storage medium, where the computer storage medium There is stored a computer program for executing the switching method of the internal communication described above.
  • the method, device, terminal and computer storage medium for switching internal communication provided by the embodiment of the present invention, by setting a backup carrier frequency in the internal communication module, when detecting that the signal-to-noise ratio of the current internal communication carrier frequency is lower than a preset threshold and continuing When the time exceeds the preset duration or the error rate is greater than the preset threshold and the duration exceeds the preset duration, a notification message for selecting an internal carrier for internal communication is sent to the terminal of the internal communication, and the standby carrier frequency is used to establish with the terminal.
  • the channel of communication, and the communication between the terminal and the terminal is transmitted using the established alternate carrier frequency channel.
  • FIG. 1 is a schematic diagram of a communication flow of a conventional dual mode terminal in a hybrid network
  • FIG. 2 is a schematic flowchart of an internal communication switching method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of implementing an internal communication switching method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an internal communication switching apparatus according to an embodiment of the present invention. detailed description
  • a backup carrier frequency is set in the internal communication module, and when it is detected that the interference of the current internal communication carrier frequency exceeds a set threshold, the communication carrier channel is established by using the backup carrier frequency, and the established channel is utilized.
  • the alternate carrier frequency channel performs communication services.
  • FIG. 1 is a schematic diagram of a communication flow of a conventional dual mode terminal in a hybrid network; as shown in FIG. 1, when an ordinary user calls another user on the wireless network through an internal communication terminal, the dual mode terminal uses an internal communication module to communicate with the internal communication through an internal communication protocol.
  • the terminal communicates, and the data is transmitted from the internal communication module to the wireless network communication module in the dual mode terminal through the serial port, and the wireless network communication module Communicate with the wireless network access network via a corresponding wireless network protocol.
  • the high-frequency signals transmitted by the internal communication module and the wireless network communication module through the antenna interfere with each other, and the call-out occurs. Due to the high power level of the transmitted signal of the wireless network, both theoretical analysis and actual measurement find that the dropped call mainly occurs on the side of the internal communication module.
  • FIG. 2 is a schematic flowchart of an internal communication switching method according to an embodiment of the present invention. As shown in FIG. 2, the internal communication switching method of this embodiment includes the following steps:
  • Step 201 When detecting that the interference of the carrier frequency of the current internal communication exceeds the set threshold, send a notification message for selecting an alternate carrier frequency for internal communication to the terminal of the internal communication.
  • the internal communication may be, but is not limited to, direct communication between the device and the device.
  • the interference of the carrier frequency of the current internal communication exceeds a set threshold includes: detecting a signal to noise ratio of a carrier frequency of the current internal communication When the preset threshold is lower than the preset duration and the duration exceeds the preset duration, it is determined that the interference of the carrier frequency of the current internal communication exceeds the set threshold;
  • the interference determined to be the carrier frequency of the current internal communication exceeds a set threshold; the current internal communication carrier frequency
  • the default carrier frequency selected for the service initiation such as the DECT carrier frequency in the Digital Enhanced Cordless Telecommunication (DECT) terminal.
  • Step 202 Determine, when the terminal switches to the backup carrier frequency, establish a communication channel with the terminal by using the backup carrier frequency, and transmit a communication service with the terminal by using the established backup carrier frequency channel.
  • determining that the terminal switches to the backup carrier frequency includes:
  • the communication mode of the internal communication terminal is switched to the backup carrier frequency
  • the communication with the wireless network side is still initiated using the carrier frequency before the terminal switches to the standby carrier frequency.
  • a specific embodiment is used to analyze the influence of wireless network communication signals in a dual mode terminal on internal communication.
  • DECT technology is used for internal communication.
  • the dual mode terminal described in this embodiment includes an internal communication module configured to perform internal communication and a wireless network communication module configured to perform wireless network communication.
  • the BER should be kept below 0.001 in the presence of the out-of-band interference signal as shown in Table 1.
  • ⁇ is the operating frequency of DECT, the electricity measured for the radiation measurement mode Field strength, the unit is ( ⁇ /m ; ⁇ ) is the measured power in the conduction measurement mode, the unit is dBm; E ⁇ dBuVlm) and P (dBm , the value has the following quantitative relationship:
  • Out-of-band blocking when non-simultaneous operation of different frequency bands requires that the DECT internal communication module can be restored in the next time slot when the in-band strong interference of -14dBm is input.
  • the internal communication module and the wireless network communication module of the dual mode terminal work simultaneously, and therefore, at the antenna interface of the internal communication module, the transmission signal from the wireless network communication module Out-of-band blocking signals when working in different frequency bands need to meet the out-of-band blocking requirements as shown in Table 1.
  • the following analyzes the impact of the wireless network communication module on the internal communication module.
  • the maximum transmission power of the wireless network communication module is the dish, and the free space propagation loss of the radio frequency signal from the antenna of the wireless network communication module to the antenna of the internal communication module is, the gain of the antenna of the internal communication module access box is, and the gain of the internal communication module antenna is
  • the wireless network communication module receiving power ⁇ ⁇ max received by the internal communication module RF port is:
  • F is the transmission frequency
  • the unit is GHz
  • D is the transmission distance
  • the unit is kilometer (km)
  • the unit of r max is dBm
  • WCDMA Wideband Code Division Multiple Access
  • the normal transmit power range of the WCDMA wireless network communication module is -50 dBm ⁇ 24 dBm, so that the critical output power of the internal communication module receiving sensitivity degradation of 3 dB is about -21 dBm.
  • the block transmit power ⁇ is:
  • the normal transmit power range of the WCDMA wireless network communication module is -50 dBm ⁇ 24 dBm, which degrades the internal communication module's receiving sensitivity by 3dB and the critical output power is about -21 dBm.
  • FIG. 3 is a schematic flowchart of an internal communication switching method according to an embodiment of the present invention. As shown in FIG. 3, the internal communication switching method according to the embodiment of the present invention includes the following steps:
  • Step 301 Receive a call from the internal communication terminal, establish an internal communication channel in the current carrier frequency of the internal communication according to the internal communication protocol, transmit the communication service, and establish a connection with the wireless network.
  • the carrier frequency of the current internal communication is the default carrier frequency selected when the service is initiated, such as the DECT carrier frequency in the DECT terminal.
  • Step 302 receiving a signal transmitted inside the communication terminal while receiving the signal and the background noise interference; and forward error correction (FER, Forward Error Correction) 0
  • the interference signal is a transmit signal from the wireless network communication module, a noise floor for the additive white gaussian noise (AWGN, Additive White Gaussian Noise) 0
  • Step 303 to step 304 determining whether the received internal communication signal strength indication (RSI, Received Signal Strength Indication) is greater than 0; if less than 0 or no signal strength is displayed, performing step 304, and the internal communication terminal still works in the current internal communication.
  • the carrier frequency is returned to step 302; if the RSSI is greater than 0, step 305 is performed.
  • the RSSI is less than 0 or no signal strength is displayed, the signal strength of the signal source is weak, and the reason for the weak signal strength is that the internal communication terminal has a low transmission power or a long distance from the internal communication terminal; if the RSSI is greater than 0 , indicating the source of the detected signal.
  • Step 305 Calculate the bit error rate and the signal to noise ratio, and calculate the bit error rate and the signal to noise ratio in the current situation.
  • Step 306 Determine whether the bit error rate and the signal to noise ratio are both in accordance with the preset standard. If yes, execute step 304, the communication with the internal communication terminal still works in the carrier frequency of the current internal communication, and return to step 302; otherwise, execute Step 307.
  • step 307 If the BER is less than the preset threshold, and the SNR is greater than the preset threshold, perform the step. 304.
  • the communication with the internal communication terminal still works on the carrier frequency of the current internal communication, and returns to step 302; otherwise, when any one of the error rate and the signal-to-noise ratio does not meet the preset standard, step 307 is performed.
  • the BER is less than the preset threshold, and the signal-to-noise ratio is greater than the preset threshold, the error rate and the signal-to-noise ratio are both in accordance with the preset standard, and the interference does not exceed the set threshold; in the bit error rate and the signal-to-noise ratio If any one does not meet the preset standard, it means that the interference is very serious in the carrier communication mode of the current internal communication; the threshold corresponding to the error rate and the signal-to-noise ratio respectively can be set according to the actual needs of the user.
  • Step 307 Determine whether the bit error rate does not meet the preset standard duration, and whether the signal-to-noise ratio does not meet the preset standard duration is less than the preset time. If both are less than the preset time, step 304 is performed, and the steps are returned. 302; Otherwise, step 308 is performed.
  • the preset time may be set according to the actual needs of the user, and the preset time corresponding to the error rate may be the same as the preset time corresponding to the signal to noise ratio, or may be different.
  • Step 308 Send a notification message for selecting an alternate carrier frequency for internal communication to the internal communication terminal.
  • Step 309 Receive a notification message of the successful handover to the backup carrier frequency and the signal of the backup carrier frequency sent by the internal communication terminal, establish a communication channel with the internal communication terminal by using the backup carrier frequency, and utilize the channel of the established backup carrier frequency. Transmitting communication services with the terminal.
  • Step 310 Initiate communication with the wireless network side by using the carrier frequency before the terminal switches to the standby carrier frequency.
  • the communication process in this embodiment ends when the communication mode is switched to the standby carrier frequency or the communication mode maintains the carrier frequency of the current internal communication until the end of the user communication process, and the on-hook operation is performed.
  • the operating frequency is switched to standby.
  • the alternate carrier frequency is different from the carrier frequency of the current internal communication.
  • the embodiment of the invention further describes an internal communication switching device, and FIG. 4 is an embodiment of the present invention.
  • the internal communication switching device of the present embodiment includes a detecting module 41, a message transmitting module 42, a receiving module 43, a determining module 44, an internal communication module 45, and a wireless network communication module 46. , among them,
  • the detecting module 41 is configured to detect whether the interference of the current internal communication carrier frequency exceeds a set threshold; and when the interference of the internal communication carrier frequency exceeds the set threshold, triggering the message sending module 42;
  • the detecting module 41 is configured to detect whether the RSSI is greater than 0; and a signal to noise ratio of the current internal communication carrier frequency and a bit error rate due to external interference, and detect the current internal communication carrier frequency according to a preset threshold value. Whether the interference exceeds a set threshold;
  • the signal-to-noise ratio is less than the preset threshold and the signal-to-noise ratio is greater than the preset threshold, the error rate and the signal-to-noise ratio are both in accordance with the preset criteria, and the interference does not exceed the set threshold; otherwise, the error rate and the signal-to-noise ratio If any one of them does not meet the preset criteria, it indicates that the interference is very serious in the carrier communication mode of the current internal communication, and the detection error rate and the signal-to-noise ratio do not meet the duration of the preset standard; wherein, respectively, corresponding to the error code
  • the preset threshold of the rate and the signal-to-noise ratio can be set according to the user's needs; the preset time can be set according to the actual needs of the user, and the preset time corresponding to the error rate corresponds to the signal-to-noise ratio Set the time to be the same or different;
  • the signal-to-noise ratio of the carrier frequency of the current internal communication is lower than the preset threshold and the duration exceeds the preset duration
  • the current internal communication is detected.
  • the frequency error rate of the frequency signal is greater than the preset threshold and the duration exceeds the preset duration
  • the interference of the carrier frequency of the current internal communication exceeds the set threshold.
  • the message sending module 42 is configured to send, to the terminal that communicates internally, a notification message that selects an alternate carrier frequency for internal communication;
  • the receiving module 43 is configured to receive a notification message that is successfully switched to the backup carrier frequency sent by the terminal, and send the notification message to the determining module;
  • the receiving module is configured to receive a notification message that is successfully switched by the terminal to the backup carrier frequency and a signal of the standby carrier frequency sent by the terminal;
  • the determining module 44 is configured to determine whether the terminal switches to the standby carrier frequency, and when the terminal is determined to switch to the standby carrier frequency, triggering the internal communication module 45;
  • the determining module 44 is configured to, when the receiving module 43 receives the notification message that the terminal successfully switches to the backup carrier frequency, determine that the terminal switches to the backup carrier frequency; when the receiving module 43 receives the terminal When the signal of the standby carrier frequency is sent, determining that the terminal switches to the standby carrier frequency; sending a determination message to the internal communication module 44;
  • the internal communication module 45 is configured to use the standby carrier frequency to establish a communication channel with the terminal, and transmit the communication service with the terminal by using the established backup carrier frequency channel; when the internal communication module 45 receives After determining, by the determining module, that the terminal switches to the backup carrier frequency, configuring, by using the standby carrier frequency, establishing a communication channel with the terminal, and using the established alternate carrier frequency channel transmission and the terminal Inter-communication service; the internal communication module is connected to the wireless network communication module 46 through the serial port inside the device;
  • the wireless network communication module 46 is configured to: after the internal communication terminal switches to the backup carrier frequency, still use the carrier frequency before the terminal switches to the backup carrier frequency to initiate communication with the wireless network side to ensure smooth communication service.
  • the embodiment of the invention further describes a terminal, including the internal communication switching device described above.
  • a terminal including the internal communication switching device described above.
  • the implementation functions of the respective processing modules in the internal communication switching device shown in FIG. 4 can be understood with reference to the related description of the aforementioned internal communication switching method.
  • the work of each processing module in the internal communication switching device shown in FIG. It can be implemented by a program running on the processor, or by a corresponding logic circuit.
  • the detecting module 41, the determining module 44, the internal communication module 45, and the wireless network communication module 46 may all be controlled by a central processing unit (CPU).
  • CPU central processing unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • the message sending module 42 can be implemented by a transmitter, and the receiving module 43 can be implemented by a receiver.
  • the embodiment of the present invention further describes a computer storage medium, wherein the computer storage medium stores a computer program, and the computer program is used to perform the internal communication switching method shown in FIG. 2 in the embodiment of the present invention, or The method of switching the internal communication shown.
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are only schematic.
  • the division of the modules is only a logical function division.
  • there may be another division manner such as: multiple modules or components may be combined, or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or modules, and may be electrical, mechanical or other forms. of.
  • the modules described above as separate components may or may not be physically separated.
  • the components displayed as modules may or may not be physical modules, that is, may be located in one place or distributed to multiple network modules; Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional module in each embodiment of the present invention may be integrated into one processing list.
  • each module may be separately used as a unit, or two or more modules may be integrated into one unit; the above integrated modules may be implemented in the form of hardware or hardware and software functional units. Formal realization.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes
  • the foregoing storage method includes: a removable storage device, a read-only memory (ROM), a magnetic disk or an optical disk, and the like, which can store program codes.
  • the above-described integrated module of the embodiment of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a stand-alone product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product.
  • the computer software product is stored in a storage medium and includes a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is implemented to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a medium that can store program codes, such as a mobile storage device, a ROM, a magnetic disk, or an optical disk.

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

Abstract

Les modes de réalisation de la présente invention concernent un procédé de transfert de communication interne. Le procédé comprend : lors de la détection du fait que le brouillage sur une fréquence porteuse d'une communication interne en cours a excédé un seuil prédéfini, l'envoi d'un message de notification pour sélectionner une fréquence porteuse secondaire pour le transport de ladite communication ; et, lors de la détermination du fait que la communication a été transférée sur la fréquence porteuse secondaire, l'utilisation de ladite fréquence porteuse secondaire pour établir un canal de communication, et l'utilisation de la fréquence porteuse secondaire établie pour la mise en œuvre du service de communication. Les modes de réalisation de la présente invention concernent également un dispositif, un terminal et un support de stockage informatique pour le transfert de communication interne.
PCT/CN2013/088096 2013-09-18 2013-11-28 Procédé, dispositif, terminal et support de stockage informatique pour le transfert de communication interne WO2014161335A1 (fr)

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CN201310432175.5 2013-09-18
CN201310432175.5A CN104469654A (zh) 2013-09-18 2013-09-18 一种内部通信的切换方法和装置

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CN114071618B (zh) * 2020-08-10 2023-11-17 华为技术有限公司 一种信道切换方法、接入设备及用户设备

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