WO2023279991A1 - Procédé et appareil de communication à base dect - Google Patents

Procédé et appareil de communication à base dect Download PDF

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Publication number
WO2023279991A1
WO2023279991A1 PCT/CN2022/101280 CN2022101280W WO2023279991A1 WO 2023279991 A1 WO2023279991 A1 WO 2023279991A1 CN 2022101280 W CN2022101280 W CN 2022101280W WO 2023279991 A1 WO2023279991 A1 WO 2023279991A1
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handles
frame number
handle
channel
number type
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PCT/CN2022/101280
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Chinese (zh)
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刘元龙
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厦门亿联网络技术股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/72502—Cordless telephones with one base station connected to a single line
    • H04M1/72505—Radio link set-up procedures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the technical field of wireless communication, in particular to a communication method and device based on DECT.
  • the bandwidth of DECT (Digital Enhanced Cordless Telecommunications) digital enhanced cordless communication is generally 12*32kbps or 6*64kbps.
  • the DECT wireless communication channel can be divided into 12 transmission channels and 12 reception channels according to the full slot channel division.
  • the DECT wireless communication channel can be divided into 6 transmission channels and 6 reception channels according to the long slot channel division.
  • the upper limit of simultaneous calls is only 12, that is, the fixed end of the same DECT device can only perform broadband voice communication with 12 terminals at the same time; in practical applications, in order to meet the interference switching, usually only 10 or even Fewer simultaneous calls; in the case of long slots, theoretically, the upper limit of simultaneous calls is only 6.
  • Embodiments of the present invention provide a communication method and device based on DECT, which further increases the upper limit of simultaneous calls according to basic facilities, and saves costs.
  • the first aspect of the embodiment of the present application provides a communication method based on DECT, including:
  • the first to-be-sent data corresponding to each of the plurality of first handles is sent to the plurality of first handles through respective configuration channels corresponding to each of the plurality of first handles.
  • Also after the first data to be sent corresponding to each of the multiple first handles is sent to the multiple first handles through the respective configuration channels corresponding to the multiple first handles ,Also includes:
  • the second to-be-sent data of the plurality of second handles is sent to the plurality of second handles through respective configuration channels corresponding to the plurality of second handles.
  • it further includes: sending broadcast signals to multiple first handles and multiple second handles, so that multiple first handles and multiple second handles adjust clocks according to the broadcast signals , to realize synchronous communication with multiple first handles and multiple second handles.
  • the third handle when the third handle that has not established a communication connection needs to establish communication, the third handle obtains an idle list; wherein, the idle list includes an idle channel and an idle period;
  • the third handle After the third handle selects an idle channel and an idle period from the idle list, it sends a communication connection request through the idle channel in the idle period; wherein, the idle period is a current period in which there is an idle channel;
  • the idle channel is used as the corresponding configuration channel of the third handle, and the channel configuration table is updated in combination with the frame number type corresponding to the idle period.
  • it also includes: when actively transmitting data, according to a preset channel configuration table, querying handles for which no communication connection has been established;
  • the handles that have not established a communication connection are notified by broadcasting, so that the handles that have not established a communication connection select an idle channel and an idle period from the idle list, and then send a communication connection request through the idle channel during the idle period.
  • it also includes: monitoring each idle channel in the idle period, and judging whether there is a communication connection request from a handle that has not established a communication connection in the idle channel, and if so, receiving the communication connection request ; if not, keep monitoring.
  • multiple first handles that are allowed to transmit data in the current period are determined from the multiple handles, specifically:
  • the second aspect of the embodiment of the present application provides a DECT-based communication device, including: a query module, an acquisition module and a sending module;
  • the query module is used to query the corresponding configuration channel and frame number type of each handle according to the preset channel configuration table when multiple handles that have established communication connections need to transmit data in the same cycle; where the frame number type includes the first The first type and the second type; every time a cycle passes, the frame number type of the current cycle is updated alternately;
  • the acquisition module is used to obtain and determine multiple first handles that are allowed to transmit data in the current cycle from multiple handles according to the frame number type of the current cycle and in combination with the frame number type corresponding to each handle;
  • the sending module is used to send the first to-be-sent data corresponding to each of the plurality of first handles to the plurality of first handles through respective configuration channels corresponding to each of the plurality of first handles.
  • the acquiring module is further configured to: send the first data to be sent corresponding to each of the multiple first handles to the After multiple first handles, update the frame number type of the current cycle, and according to the updated frame number type, combined with the frame number type corresponding to each handle, determine multiple handles that are allowed to transmit data in the current cycle. Two handles;
  • the sending module is also used to send the second data to be sent corresponding to each of the plurality of second handles to the plurality of second handles through the respective configuration channels corresponding to each of the plurality of second handles.
  • it further includes: sending broadcast signals to multiple first handles and multiple second handles, so that multiple first handles and multiple second handles adjust clocks according to the broadcast signals , to realize synchronous communication with multiple first handles and multiple second handles.
  • the DECT-based communication method and device provided by the embodiment of the present invention have the beneficial effect that: the communication method of the embodiment of the present invention, first, multiple handles that have established communication connections within the same cycle When data needs to be transmitted, according to the preset channel configuration table, query the corresponding configuration channel and frame number type of each handle; then obtain and combine the frame number type corresponding to each handle according to the frame number type of the current cycle, from Among the plurality of handles, determine a plurality of first handles that are allowed to transmit data in the current cycle; finally, the first data to be sent corresponding to each of the plurality of first handles is respectively passed through each of the plurality of first handles The corresponding configuration channel is sent to the multiple first handles.
  • the above method can send data to different handles in the same channel and in periods of different frame number types, and the frame number types include the first type and the second type. Therefore, one channel can support two handles at the same time, so it can be used by up to 24 handles at the same time, that is, the upper limit of simultaneous calls is up to 24 channels.
  • This solution only adopts the method of time-division multiplexing, supplying the same channel to different handles in different frame number types of cycles, without any changes in hardware, unlike the existing technology: in order to increase the call limit 2 wireless modules are placed in a fixed end of a DECT device. Because this solution does not put two wireless modules in a fixed end of DECT equipment, it does not occupy multiple frequency bands and avoids the reduction of deployment capacity; at the same time, because this solution further increases the upper limit of simultaneous calls according to the basic facilities, it saves costs.
  • Fig. 1 is a schematic flow chart of a DECT-based communication method provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a preset channel configuration table provided by an embodiment of the present invention.
  • Fig. 3 is a schematic structural diagram of a DECT-based communication device provided by an embodiment of the present invention.
  • FIG. 1 it is a schematic flow chart of a DECT-based communication method provided by an embodiment of the present invention, including:
  • the frame number type includes the first type and the second type; every time a cycle passes, the frame number type of the current cycle is updated alternately.
  • the preset channel configuration table is updated according to the communication connection requests of multiple handles; wherein, the communication connection request includes the channel data used by the handle when sending the request, that is, the corresponding configuration of the handle Channel and frame number types.
  • the preset channel configuration table is automatically updated according to the channel data.
  • the automatically updating the preset channel configuration table is specifically:
  • the preset channel configuration table When a new handle establishes a communication connection and a handle that has established a communication connection disconnects, the preset channel configuration table will be updated. Among them, when the communication connection is disconnected, that is, when the call is hung up, the handle no longer transmits data in the channel, that is, the channel becomes a clean channel for subsequent new handles to use.
  • S102 Obtain and determine multiple first handles that are allowed to transmit data in the current cycle from multiple handles according to the frame number type of the current cycle and in combination with the frame number types corresponding to each handle.
  • the determination of multiple first handles that are allowed to transmit data in the current period from the multiple handles is specifically:
  • the first type and the second type may respectively correspond to an odd type and an even type.
  • S103 Send the first to-be-sent data corresponding to each of the plurality of first handles to the plurality of first handles through respective configuration channels corresponding to each of the plurality of first handles.
  • S104 Update the frame number type of the current cycle, and according to the updated frame number type and the frame number type corresponding to each handle, determine multiple second handles that are allowed to transmit data in the current cycle from the multiple handles.
  • the The handle is determined as a second handle that is allowed to transmit data within the current period.
  • the update of the frame number type is: every time a cycle passes, the frame number type of the current cycle is updated alternately, that is, every time a cycle passes, the first type and the second type are alternately updated. Specifically: switch the frame number type when entering the next cycle as time goes by, switch the first type to the second type or switch the second type to the first type.
  • S105 Send the second to-be-sent data corresponding to each of the plurality of second handles to the plurality of second handles through respective configuration channels corresponding to each of the plurality of second handles.
  • it also includes: sending broadcast signals to multiple first handles and multiple second handles, so that the multiple first handles and multiple second handles adjust the clock according to the broadcast signal, so as to realize the communication with the multiple first handles.
  • Synchronous communication of one handle and multiple second handles the broadcast signal includes time information, and the first handle and the second handle can calculate network delay and clock deviation according to the time information to adjust their own clocks, and finally realize the communication between the base station and multiple first handles, multiple Synchronous communication with a second controller.
  • the broadcast signal is sent via a broadcast channel, and the broadcast channel only allows the handle to receive data, but does not allow the handle to send data.
  • the third handle when the third handle that has not established a communication connection needs to establish communication, the third handle acquires an idle list; wherein, the idle list includes idle channels and idle periods;
  • the third handle After the third handle selects the idle channel and the idle period from the idle list, it sends a communication connection request through the idle channel during the idle period; The current period of the idle channel;
  • the free list is generated by the following method:
  • Each handle keeps monitoring each channel, and when the channel is detected to be clean, the channel is recorded as an idle channel, the cycle in which the channel is detected to be clean is recorded as an idle cycle, and the idle channel and the idle cycle are added to the idle list.
  • the channel is clean, which means that only one handle or no handle is used in the channel.
  • it also includes: when each handle is registered, the corresponding frame number type is preset, and the registered handle can only perform data transmission in the corresponding frame number type; so the registered handle obtains A clean channel refers to a situation where no other handles are used in the corresponding frame number type of each handle in the channel, and there is no other wireless interference.
  • the handle that has not established a communication connection is notified by broadcasting, so that the handle that has not established a communication connection selects the idle channel and the idle period from the idle list, and passes through the idle channel in the idle period.
  • the channel communicates by sending connection requests.
  • it also includes:
  • FIG. 2 is a schematic diagram of a preset channel configuration table provided by an embodiment of the present invention.
  • channels No. 0 to No. 11 are downlink channels, which are used for the handle to receive corresponding data; channels No. 12 to No. 23 It is an uplink channel, which is used for the controller to send data and communicate connection requests.
  • the frame number type of the current period with an odd frame number is used as the first type; the frame number type of the current period with an even frame number is used as the second type.
  • each handle there are currently four handles H1, H2, H3, and H4 that have established communication connections using channels for data transmission.
  • the corresponding configuration channel of each handle is divided into the corresponding configuration uplink channel and the corresponding configuration downlink channel.
  • H1 corresponds to configuring the downlink channel as channel 0, correspondingly configuring the uplink channel as 12, and the frame number type corresponding to the handle as the first type
  • H2 corresponds to configuring the downlink channel as channel 0, correspondingly configuring the uplink channel as 12, and the frame number corresponding to the handle
  • the type is the second type
  • H3 corresponds to configuring the downlink channel as channel 1, correspondingly configuring the uplink channel as 13, and correspondingly configuring the frame number type of the handle as the first type
  • H4 correspondingly configuring the downlink channel as channel 1, and correspondingly configuring the uplink channel as 13
  • the frame number type corresponding to the handle is the second type.
  • the frame number type of the current cycle is the first type.
  • the preset channel configuration table only the frame number types corresponding to the H1 and H3 handles are the first type. Then the handles H1 and H3 are determined as the two first handles that are allowed to transmit data in the current period; the first data to be sent corresponding to H1 and H3 are respectively passed through the corresponding configuration channels of H1 and H3, that is, the corresponding configuration downlink Channels 0 and 1 are sent to H1 and H3.
  • the frame number type of the current cycle is the second type.
  • the frame number types corresponding to the H2 and H4 handles are the second type. Then the handles H2 and H4 are determined as the two second handles that are allowed to transmit data in the current cycle; the second data to be sent corresponding to H2 and H4 are respectively passed through the corresponding configuration channels of H2 and H4, that is, the corresponding configuration downlink Channels 0 and 1 are sent to H2 and H4.
  • the broadcast signal is sent to multiple first handles and multiple second handles, so that the multiple first handles and multiple second handles adjust the clock according to the broadcast signal, so as to realize the communication with multiple first handles and multiple second handles Synchronous communication of the controller.
  • the process of synchronous communication between the first handle and the second handle and the fixed end of the DECT device is as follows:
  • the frame number type of the current cycle is the first type.
  • the preset channel configuration table only the frame number types corresponding to the H1 and H3 handles are the first type. Then the handles H1 and H3 are determined to be the two first handles that are allowed to transmit data in the current cycle; then H1 and H3 send data to The fixed end of the DECT equipment is the DECT base station.
  • the frame number type of the current cycle is the second type.
  • the frame number types corresponding to the H2 and H4 handles are the second type. Then the handles H2 and H4 are determined to be the two second handles that are allowed to transmit data in the current period; then H2 and H4 send data to The fixed end of the DECT equipment is the DECT base station.
  • the data is sent from the channel to the handle uniquely corresponding to each channel in each cycle; and since the 24 channels are divided into uplink channel and downlink channel, they are used for sending and receiving data of the handle respectively , so it can only be used by 12 handles at the same time, that is, the upper limit of simultaneous calls is only 12.
  • this application document first obtains the frame number type of the current cycle, and then determines the handle that is allowed to transmit data in the current cycle according to whether the frame number type of the current cycle is the same as the frame number type corresponding to the handle, and the frame number type includes Type 1 and Type 2.
  • the above method can send data to different handles in the same channel and in different frame number type periods.
  • one channel can support two handles to be used at the same time, so it can be used by up to 24 handles at the same time, that is, the upper limit of simultaneous calls is up to 24 channels.
  • This solution only adopts the method of time-division multiplexing, and supplies the same channel to different handles in different frame number types of cycles.
  • the wireless module is placed in a fixed end of a DECT device. Because this solution does not put two wireless modules in a fixed end of DECT equipment, it does not occupy multiple frequency bands and avoids the reduction of deployment capacity; at the same time, because this solution further increases the upper limit of simultaneous calls according to the basic facilities, it saves costs.
  • the frame number type is expanded to further increase the upper limit of simultaneous calls, such as: set the frame number type to 3 types or With 4 types, one channel can support 3 handles or 4 handles at the same time, and the upper limit of simultaneous calls is as high as 36 or even 48 channels. From the above, it can be obtained that the upper limit of simultaneous calls can be further increased on the basis of the present invention by adopting the method of time-division multiplexing.
  • FIG. 3 is a schematic structural diagram of a DECT-based communication device provided by an embodiment of the present invention, including: a query module 301 , an acquisition module 302 and a sending module 303 .
  • the query module 301 is used to query the configuration channel and frame number type corresponding to each handle according to the preset channel configuration table when multiple handles with established communication connections need to transmit data in the same cycle; wherein, The frame number type includes the first type and the second type; every time a cycle passes, the frame number type of the current cycle is updated alternately;
  • the acquiring module 302 is used to acquire and determine, from the plurality of handles, a plurality of first frame numbers that are allowed to transmit data in the current cycle according to the frame number type of the current cycle and in combination with the frame number type corresponding to each of the handles. handle;
  • the sending module 303 is configured to send the first to-be-sent data corresponding to each of the plurality of first handles to the plurality of first handles through respective configuration channels corresponding to each of the plurality of first handles.
  • the acquiring module 302 is further configured to: send the first data to be sent corresponding to each of the plurality of first handles to the corresponding configuration channels respectively through the corresponding configuration channels of the plurality of first handles.
  • the sending module 303 is further configured to send the second to-be-sent data corresponding to each of the plurality of second handles to the plurality of second handles respectively through the corresponding configuration channels of the plurality of second handles Two handles.
  • the determination of multiple first handles that are allowed to transmit data in the current period from the multiple handles is specifically:
  • the sending module 303 is further configured to send broadcast signals to the multiple first handles and the multiple second handles, so that the multiple first handles, the multiple second handles The clock is adjusted according to the broadcast signal to realize synchronous communication with the multiple first handles and the multiple second handles.
  • the third handle when the third handle that has not established a communication connection needs to establish communication, the third handle acquires an idle list; wherein, the idle list includes idle channels and idle periods;
  • the third handle After the third handle selects the idle channel and the idle period from the idle list, it sends a communication connection request through the idle channel during the idle period; The current period of the idle channel;
  • the handle that has not established a communication connection is notified by broadcasting, so that the handle that has not established a communication connection selects the idle channel and the idle period from the idle list, and passes through the idle channel in the idle period.
  • the channel communicates by sending connection requests.
  • it also includes: monitoring each of the idle channels in the idle period, and judging whether there is the communication connection request of the handle that has not established a communication connection in the idle channel, and if so, receiving The communication connection request; if not, keep monitoring.
  • the query module 301 when multiple handles that have established communication connections need to transmit data in the same cycle through the query module 301, according to the preset channel configuration table, query the corresponding configuration channel and frame number type of each handle; Obtaining 302 acquires and according to the frame number type of the current cycle, combined with the frame number type corresponding to each of the handles, determines from the multiple handles a plurality of first handles that are allowed to transmit data in the current cycle; finally, by sending The module 303 sends the first to-be-sent data corresponding to each of the plurality of first handles to the plurality of first handles through respective configuration channels corresponding to each of the plurality of first handles.
  • data can be sent to different handles in the same channel and in periods of different frame number types, and the frame number types include the first type and the second type. Therefore, one channel can support two handles at the same time, so it can be used by up to 24 handles at the same time, that is, the upper limit of simultaneous calls is up to 24 channels.
  • This solution only adopts the method of time-division multiplexing, supplying the same channel to different handles in different frame number types of cycles, without any changes in hardware, unlike the existing technology: in order to increase the call limit 2 wireless modules are placed in a fixed end of a DECT device. Because this solution does not put two wireless modules in a fixed end of DECT equipment, it does not occupy multiple frequency bands and avoids the reduction of deployment capacity; at the same time, because this solution further increases the upper limit of simultaneous calls according to the basic facilities, it saves costs.

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

Abstract

Sont divulgués un procédé et un appareil de communications à base DECT. Le procédé comprend : lorsqu'une pluralité de poignées qui ont établi des connexions de communication doivent transmettre des données dans le même cycle, selon une table de configuration de canal prédéfinie, l'interrogation d'un canal de configuration et d'un type de numéro de trame correspondant à chaque poignée ; l'obtention d'un type de numéro de trame d'un cycle actuel, et, en combinaison avec le type de numéro de trame correspondant à chaque poignée, la détermination, parmi la pluralité de poignées, d'une pluralité de premières poignées qui sont autorisées à transmettre des données dans le cycle actuel ; et enfin, l'envoi de premières données à envoyer correspondant respectivement à la pluralité de premières poignées à la pluralité de premières poignées au moyen de canaux de configuration correspondant respectivement à la pluralité de premières poignées. Au moyen des modes de réalisation de la présente invention, la limite supérieure d'appels simultanés peut être davantage augmentée selon les installations de base, et les coûts sont réduits.
PCT/CN2022/101280 2021-07-09 2022-06-24 Procédé et appareil de communication à base dect WO2023279991A1 (fr)

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