WO2024007294A1 - Procédé de balayage de canal et appareil associé - Google Patents

Procédé de balayage de canal et appareil associé Download PDF

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Publication number
WO2024007294A1
WO2024007294A1 PCT/CN2022/104590 CN2022104590W WO2024007294A1 WO 2024007294 A1 WO2024007294 A1 WO 2024007294A1 CN 2022104590 W CN2022104590 W CN 2022104590W WO 2024007294 A1 WO2024007294 A1 WO 2024007294A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
scanning
time slot
channel
radio frequency
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PCT/CN2022/104590
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English (en)
Chinese (zh)
Inventor
梁朝忠
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海能达通信股份有限公司
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Application filed by 海能达通信股份有限公司 filed Critical 海能达通信股份有限公司
Priority to PCT/CN2022/104590 priority Critical patent/WO2024007294A1/fr
Publication of WO2024007294A1 publication Critical patent/WO2024007294A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements

Definitions

  • the present application relates to the field of communication technology, and specifically to a channel scanning method and related devices.
  • Terrestrial trunked radio is a trunking communication technology based on digital time division multiple access (TDMA).
  • TDMA digital time division multiple access
  • the terminal equipment in addition to receiving and transmitting information, the terminal equipment also needs to scan neighboring areas to facilitate the development of other services.
  • the Tetra system when a terminal device needs to scan neighboring cells, the Tetra system will send a monitor scan message to the terminal device.
  • the underlying module of the terminal device uses the idle time slot of the terminal device to scan the monitor message according to the message. Complete the corresponding neighborhood scan operation.
  • the sleep time will be reduced, thereby increasing the power consumption of the terminal device.
  • this application provides a channel scanning method and related devices, which can reduce the power consumption of terminal equipment.
  • the first aspect of this application provides a channel scanning method, including:
  • the scanning message includes channel parameters, the channel parameters are used to indicate the target channel to be scanned, and the scanning message is a scanning message issued by the communication system where the terminal device is located;
  • the target channel is scanned according to the channel parameters through the radio frequency circuit.
  • the receiving time slot includes a first time period during which the radio frequency circuit performs a data reception task, and a second time period during which the radio frequency circuit completes the data reception task and is in a working state;
  • scanning the target channel according to the channel parameters through the radio frequency circuit includes: in the second time period in the receiving time slot, using the radio frequency circuit to scan the target channel according to the channel parameters.
  • the method before scanning the target channel according to the channel parameters through the radio frequency circuit, the method further includes: delaying shutdown to complete the data reception task within the reception time slot.
  • the radio frequency circuit wherein the radio frequency circuit is in the working state when it is not turned off; and scanning the target channel according to the channel parameters through the radio frequency circuit includes: resetting the target channel according to the channel parameters. Set the scanning parameters of the radio frequency circuit; scan the target channel through the radio frequency circuit that resets the scanning parameters.
  • receiving the scan message includes: receiving the scan message in a reception time slot before the reception time slot or in an idle time slot.
  • the method further includes: adding the channel parameters to a cache after receiving the scan message; and obtaining the channel parameters from the cache within the receiving time slot.
  • the method further includes: if the current time slot is an idle time slot, maintaining the sleep state of the radio frequency circuit.
  • the method further includes: deleting the channel parameters corresponding to the target channel in the cache.
  • the method before obtaining the channel parameter from the cache, the method further includes: determining whether the channel parameter exists in the cache within the receiving time slot; if so, triggering the Describe the steps of obtaining the channel parameters from the cache.
  • the channel parameters include frequency information of neighboring cells.
  • the scanning message is a monitor scanning message sent by the access network element in the land trunked radio Tetra system.
  • a second aspect of this application provides a terminal device, which includes a radio frequency circuit; and further includes:
  • a receiving unit configured to receive a scanning message, where the scanning message includes channel parameters, where the channel parameters are used to indicate the target channel to be scanned, and the scanning message is a scanning message issued by the communication system where the terminal device is located;
  • a scanning unit is configured to scan the target channel according to the channel parameters through the radio frequency circuit within the receiving time slot when the terminal device is working.
  • the receiving time slot includes a first time period when the radio frequency circuit performs a data reception task, and a second time period when the radio frequency circuit completes the data reception task and is in a working state; the scanning unit Specifically, it is used to scan the target channel according to the channel parameters through the radio frequency circuit during the second time period in the receiving time slot.
  • the terminal device further includes: a delay unit, configured to delay turning off the radio frequency circuit that has completed the data reception task within the receiving time slot, wherein the radio frequency circuit is in the state when it is not turned off.
  • the working state the scanning unit is specifically configured to: reset the scanning parameters of the radio frequency circuit according to the channel parameters; and scan the target channel by using the radio frequency circuit that resets the scanning parameters.
  • the receiving unit is specifically configured to: receive the scanning message in a receiving time slot before the receiving time slot or an idle time slot.
  • the terminal device further includes: a caching unit, configured to add the channel parameters to the cache after receiving the scanning message; and an obtaining unit, configured to obtain the channel parameters from the receiving time slot within the receiving time slot. Obtain the channel parameters from the cache.
  • the terminal device further includes: a sleep unit, configured to maintain the sleep state of the radio frequency circuit when the current time slot is an idle time slot.
  • the terminal device further includes: a deletion unit, configured to delete the channel parameter corresponding to the target channel in the cache.
  • the terminal device further includes: a judgment unit, used to judge whether the channel parameter exists in the cache within the receiving time slot; a triggering unit, used to determine when the judgment unit determines that the cache When the channel parameter exists in , the step of obtaining the channel parameter from the cache is triggered.
  • the channel parameters include frequency information of neighboring cells.
  • the scanning message is a monitor scanning message sent by the access network element in the land trunked radio Tetra system.
  • the third aspect of this application provides a terminal device, including:
  • processor memory
  • the processor is configured to communicate with the memory, and execute instruction operations or codes in the memory to perform the channel scanning method provided in any one of the first aspects.
  • a fourth aspect of the present application provides a computer-readable storage medium, which is characterized in that the computer-readable storage medium includes instructions that, when the instructions are run on a computer, cause the computer to perform any of the steps provided in the first aspect. channel scanning method.
  • a channel scanning method and related devices includes: receiving a scanning message.
  • the scanning message contains channel parameters.
  • the channel parameters are used to indicate a target channel to be scanned.
  • the scanning message is a message issued by the communication system where the terminal device is located. ;
  • the target channel is scanned according to the channel parameters through the radio frequency circuit.
  • This solution uses radio frequency circuits to scan the corresponding target channel according to the channel parameters in the scanning message in the receiving time slot when the terminal device is working, so that the terminal device completes the scanning work corresponding to the scanning message in the receiving time slot. Therefore, there is no need to perform scanning work in idle time slots due to scanning messages issued by the communication system, thereby reducing the power consumption of the terminal equipment.
  • Figure 1 is a schematic diagram of time slots in the standby mode of a terminal device in an embodiment
  • Figure 2 is a schematic flow chart of a channel scanning method provided by an embodiment of the present application.
  • Figure 3 is a schematic flow chart of another channel scanning method provided by an embodiment of the present application.
  • Figure 4 is a time period configuration diagram within a receiving time slot in the embodiment of the present application.
  • Figure 5 is a schematic diagram of the operating power of a receiving time slot in an embodiment
  • Figure 6 is a schematic diagram of time slots in the standby mode of the terminal device provided by the embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • Figure 8 is a schematic structural diagram of another terminal device provided by an embodiment of the present application.
  • Terrestrial trunked radio (Tetra) system Tetra digital trunking communication system, is a trunking communication system based on digital time division multiple access (TDMA) technology.
  • TDMA digital time division multiple access
  • the terminal equipment In addition to receiving and transmitting information, the terminal equipment also needs to process the monitor scanning messages sent by the Tetra system. Since there are many trigger conditions for the Tetra system to deliver monitor scan messages, the delivery time of the monitor scan messages is uncertain. In order to process the monitor scanning messages sent from time to time by the Tetra system, the terminal device needs to configure additional time slots to receive the monitor scanning messages and turn on the radio frequency circuit to perform corresponding scanning work, which consumes a lot of radio frequency resources.
  • Figure 1 is a schematic diagram of the time slots in the standby mode of the Tetra terminal cluster mode in an embodiment.
  • the four time slots in a frame are configured as one receiving time slot and three The idle time slots correspond to Slot1 and Slot2 to Slot4 in the figure respectively.
  • the terminal device performs receiving work.
  • the monitor scan message is added to the cache.
  • the workflow of the terminal equipment includes:
  • Step 101 The terminal device wakes up the radio frequency circuit from the sleep state, switches to the working state, and detects whether there is a monitor scan message to be processed or received;
  • the radio frequency circuit mentioned in this application document is a circuit required by the terminal device to work within the receiving time slot, and may specifically include a radio frequency receiving circuit and a frequency generator unit (frequency generator unit, FGU) circuit.
  • FGU frequency generator unit
  • Step 102 If the monitor scan message is detected, the scanning process corresponding to the monitor scan message is performed through the radio frequency circuit.
  • the terminal device needs to configure a radio frequency switch, lock the frequency point of the channel to be scanned corresponding to the monitor scanning message and collect data, and then turn off the radio frequency switch after the scanning process is completed.
  • a scan operation Due to the switching action of radio frequency, it will take about 6ms to lock the frequency point of the channel to be scanned. Coupled with the process of signal acquisition and data processing, the scanning of each frequency point will occupy one time slot resource (Tetra system 1 time slot 14.167ms).
  • the applicant used the time of one multiframe in standby mode as the calculation range, and calculated the resources consumed due to monitor scanning messages as shown in Table 1. Among them, the time of one multiframe is equal to the time of 18 frames.
  • the terminal device needs to wake up from the sleep state in every idle time slot to detect whether there is a monitor scan message that needs to be received and processed; while the terminal device Sleep is usually performed in idle time slots; the radio frequency circuit of the terminal device frequently switches between sleep state and working state, which will greatly weaken the actual power saving effect of standby sleep.
  • some scanning messages regularly delivered by the communication system that directly or indirectly instruct the terminal device to perform scanning operations in idle time slots will also cause the above defects.
  • the cell system will send a scanning message containing frequency point information.
  • the terminal device will perform periodic scanning based on the frequency point information, and the scanning operation can be performed in idle time slots; therefore , processing the scan message will also weaken the sleep power saving effect of the terminal device in idle time slots.
  • this application provides a channel scanning method and related devices, which can improve the time-frequency resource utilization of terminal equipment and also reduce the power consumption of terminal equipment.
  • the channel scanning method provided by the embodiment of the present application can be applied to terminal equipment in the Tetra system.
  • terminal device refers to the terminal device under the Tetra system, which can be a handheld terminal, such as a walkie-talkie and a smartphone, or a vehicle-mounted terminal, such as a vehicle navigator.
  • the Tetra system is usually used to provide command, dispatch and data transmission services.
  • many new applications such as vehicle positioning, image transmission, Mobile Internet, database query, etc. have all been implemented in the Tetra system.
  • the channel scanning method provided by the embodiment of the present application can also be applied to other communication systems based on TDMA technology, such as police digital trunking (police digital trunking, PDT) system or (digital mobile radio, DMR) system; Specifically, it can be applied to the scenario where the terminal device needs to perform channel scanning according to the scanning message or other instruction message issued by the communication system.
  • TDMA time division multiple access
  • PDT police digital trunking
  • DMR digital mobile radio
  • Figure 2 is a schematic flow chart of a channel scanning method provided by an embodiment of the present application. The method specifically includes:
  • Step 201 The terminal device receives the scanning message.
  • the scanning message includes channel parameters, and the channel parameters are used to indicate the target channel to be scanned.
  • the scanning message is a scanning message issued by the communication system where the terminal device is located.
  • the scanning message is a monitor scanning message sent from time to time by the access network element in the Tetra system.
  • the access network element may be a base station.
  • the scanning message is a monitor scanning message and the access network element is a base station.
  • the scanning message is a scanning message issued by the cell system when the terminal device registers with the cell system.
  • a cell handover process occurs when the terminal device moves across areas.
  • the terminal device periodically scans the frequency points of adjacent cells according to the configuration in the monitor scanning message sent by the base station to provide a basis for cell switching. It is understandable that the greater the number of neighboring cells that exist at the same time, the more frequency points need to be scanned and the greater the time-frequency resources consumed.
  • the base station needs to establish a neighbor relationship between adjacent cells, so it sends a monitor scan message to the terminal device to instruct the terminal device to perform neighbor cell detection scanning. work process.
  • the base station sends a monitor scanning message to the terminal device, and performs background signal interference detection based on the scanning results of the terminal device.
  • the base station in the Tetra system can be triggered to send a monitor scanning message to the terminal device, so that services can be carried out through the scanning results of the terminal device. Therefore, the scanning message may be sent from time to time by the communication system where the terminal device is located.
  • the channel parameter is the frequency point information of the neighboring cell, so that the terminal device can directly lock the frequency point of the neighboring cell channel and collect data.
  • the channel parameter can also be the frequency range of the neighboring cell.
  • step 201 can be executed in any time slot; in the idle time slot, when the radio frequency circuit of the terminal device is in a sleep state, other circuit units of the terminal device complete the reception of the monitor scan message.
  • the terminal device receives the monitor scan message in a receiving time slot or an idle time slot.
  • the terminal device If the monitor scan message is received in an idle time slot, the terminal device does not perform the scanning workflow corresponding to the monitor scan message and keeps the radio frequency circuit in a dormant state until the next reception time slot arrives.
  • the terminal device If the monitor scan message is received in the receiving time slot, the terminal device performs step 202; if the scanning work corresponding to all channel parameters in the monitor scanning message cannot be completed in the receiving time slot, the terminal device waits for the next receiving time slot to continue the process. Scanning works.
  • Step 202 In the receiving time slot, the terminal device scans the target channel according to the channel parameters in the scanning message.
  • the process of scanning a channel is the process of locking the frequency point of the channel and collecting data.
  • the target channel indicated by the radio frequency circuit is scanned according to the channel parameters in the monitor scanning message.
  • the receiving time slot when the terminal device is working refers to the receiving time slot when the terminal device is not turned off.
  • the receiving time slot can be the receiving time slot in the working mode of the terminal device, or it can also be the receiving time slot in the standby mode. gap.
  • the embodiments of the present application borrow radio frequency circuits to scan the corresponding target channel according to the channel parameters in the scanning message in the receiving time slot when the terminal device is working, so that the terminal device completes the processing during the receiving time slot.
  • the scanning work corresponding to the scanning message eliminates the need to perform scanning work in idle time slots due to the scanning message issued by the communication system, thereby reducing the power consumption of the terminal device.
  • Figure 3 shows another channel scanning method provided by the embodiment of the present application. process diagram. As shown in Figure 3, the channel scanning method includes the following steps 301-308.
  • Step 301 The terminal device receives the scanning message.
  • step 301 in this embodiment is similar to step 201 in the aforementioned embodiment shown in Figure 2, and will not be described again here.
  • Step 302 The terminal device adds channel parameters to the cache.
  • the terminal device After receiving the monitor scan message, the terminal device can add the channel parameters in the monitor scan message to the cache.
  • the terminal device can add the channel parameter to the cache through the protocol stack inside the terminal device.
  • the protocol stack controls the time point at which step 302 is performed.
  • the protocol stack when the radio frequency circuit of the terminal device is in a sleep state, the protocol stack does not perform the adding operation of channel parameters.
  • the channel parameter is used as the frequency point information of the neighboring cell for explanation.
  • the terminal device adds the frequency point information to the end of the cache queue.
  • the cache queue may be a preset queue or a temporary queue created after obtaining the channel parameters.
  • the cache queue is a first-in-first-out queue.
  • Step 303 The terminal device determines whether the current time slot is a receiving time slot.
  • the terminal device After adding the channel parameters to the cache, the terminal device can detect whether the current time slot is a receiving time slot.
  • step 304 is executed.
  • step 303 is executed again after a preset time interval.
  • the radio frequency circuit is kept in a sleep state.
  • the embodiment of the present application does not perform the scanning work corresponding to the monitor scanning message in the non-receiving time slot, and maintains the sleep state of the radio frequency circuit in the idle time slot. There is no need to frequently switch between the sleep state and the working state in the standby mode, and it is possible to increase the number of terminals.
  • the sleep time of the device reduces the power consumption of the terminal device.
  • the terminal device receives the monitor scan message before receiving the time slot.
  • the terminal device can receive the monitor scan message before receiving the time slot; and, after adding the channel parameters to the cache, the terminal device does not perform scanning work corresponding to the monitor scan message before receiving the time slot.
  • the time slot for receiving the monitor scan message is different from the time slot for performing the corresponding scanning workflow according to the monitor scan message, and no scanning work corresponding to the monitor scan message is performed in non-receiving time slots, so that the terminal device does not need to occupy other
  • the time slot resources carry out the corresponding scanning workflow.
  • Step 304 The terminal device determines whether the channel parameters exist in the cache.
  • step 303 determines whether the channel parameters exist in the cache.
  • FIG. 4 is a time period configuration diagram within a receiving time slot in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the working power of a receiving time slot.
  • a receiving time slot can be divided into four time periods T1 to T4, specifically including the time period T1 when the radio frequency circuit is turned on, the first time period T2 when the radio frequency circuit performs the data reception task, and the radio frequency circuit completes execution
  • the second time period T3 is the data receiving task and is in the working state
  • the time period T4 is when the radio frequency circuit is turned off.
  • the receiving time slot includes: the t1 time period when the radio frequency circuit is gradually turned on and the power gradually rises; the t2 time period when the radio frequency circuit is in working state and the power is maintained at about 0dBc; and
  • the RF receiving circuit and FGU circuit in the RF circuit begin to shut down in an orderly manner and the power gradually decreases during the t3 period; and the terminal device in the embodiment of the present application delays the shutdown of the RF circuit after the RF circuit completes the data reception task, thereby reducing the t3 time period.
  • the segment is divided into T3 and T4, and T3 is the time to delay turning off the radio frequency circuit, which is the above-mentioned second time period T3.
  • step 304 can be performed in the first time period T2, specifically before the radio frequency circuit performs the data receiving task, or after the radio frequency circuit performs the data receiving task; it can also be performed in the second time period T3.
  • step 305 If the channel parameter exists in the cache, perform step 305; if not, return to step 301.
  • the terminal device determines that the channel parameters do not exist in the cache, it waits for the base station to send the scanning message again and then performs step 301.
  • Step 305 The terminal device obtains channel parameters from the cache.
  • the terminal device determines that there are channel parameters in the buffer, after the terminal device completes receiving data in the first time period T2, the terminal device can perform steps 305 to 308 in the second time period T3.
  • the terminal device can obtain one frequency point information from the cache each time and then perform step 306; it can also calculate the remaining time that can be used for scanning based on the second time period T3, and then calculate the remaining time that can be used for scanning based on the remaining time. The number of scanned channels is then obtained, and the corresponding number of frequency point information is obtained, and then step 306 is performed.
  • Step 306 The terminal device scans the target channel.
  • the terminal device resets the frequency information in the scanning parameters of the radio frequency circuit to the frequency information obtained in step 305, and performs the target channel analysis on the target channel based on the reset frequency information.
  • the frequency point is locked, and finally the received signal strength indicator (RSSI) of the target channel is collected through the radio frequency receiving circuit.
  • RSSI received signal strength indicator
  • the terminal device resets the scanning parameters of the radio frequency circuit according to the channel parameter, and scans the target channel through the radio frequency circuit that resets the scanning parameters.
  • the terminal device When there are multiple frequency points obtained in step 305, the terminal device needs to scan the corresponding target channels one by one.
  • Step 307 The terminal device deletes the channel parameters corresponding to the target channel in the cache.
  • the terminal device may delete the channel parameters corresponding to the target channel in the cache. Specifically, the terminal device can complete one scan and perform a deletion operation, or it can perform the corresponding deletion operation after completing the scan of the target channel corresponding to all channel parameters.
  • Step 308 The terminal device reports the scanning results to the base station.
  • the terminal device After the terminal device completes scanning of the target channel, the terminal device can report the scanned RSSI information of the target channel to the base station, so that the base station can carry out services based on the field strength information.
  • step 307 and step 308 can be executed simultaneously or sequentially, and the specific order is not limited here.
  • the terminal device can return to executing step 303 to complete scanning of corresponding target channels for all channel parameters in the buffer in different receiving time slots.
  • the embodiment of the present application uses the tail time of the reception time slot to process the scan message, thereby saving the time slot resources and the radio frequency resources consumed by the radio frequency circuit operation, and reducing the power consumption of the terminal equipment; in addition, the embodiment of the present application also uses the communication system
  • the scan messages sent are processed according to the orderly time nodes. There is no need to wake up for detection in every time slot, which can extend the system sleep time to a greater extent.
  • FIG. 6 is a schematic diagram of time slots in the standby mode of the terminal device provided by the embodiment of the present application.
  • the terminal device processes the scanning message and performs the corresponding scanning workflow will be concentrated in Slot1 or the receiving time slot in the working mode, and the idle time slot It can be mainly used to perform step 601: sleep.
  • the terminal device can delay the time to turn off the radio frequency circuit and scan the target channel before turning off the radio frequency circuit; thus, there is no need to restart the radio frequency circuit, and the terminal equipment only needs to reset the frequency point information.
  • the time required for locking is greatly reduced, and the scanning of a neighboring area can be completed in a very short time.
  • the base station is configured with 8 neighboring cells to work together.
  • the terminal device moves at the edge of different cells, the terminal device will trigger neighbor cell detection.
  • each scan is continued at the end of the receiving time slot, which can reduce the time to start the radio frequency circuit by 8 times compared with the general method. It can be seen that using the channel scanning method provided by the embodiment of the present application can greatly improve the time-frequency utilization of the terminal.
  • the resource consumption situation within a multiframe period in standby mode is as follows:
  • the additional radio frequency resource time occupied by scanning two neighboring cells is 2nms
  • the additional working time of the radio frequency part circuit in the radio frequency circuit is 2*(m+n)ms.
  • the system of the terminal equipment The number of additional wake-ups is 0.
  • n is the radio frequency time required to scan a neighboring cell
  • m is the time to lock the frequency point.
  • the present application also provides a terminal device 700.
  • Figure 7 is a schematic structural diagram of the terminal device 700.
  • the terminal device 700 may specifically include:
  • the receiving unit 701 is configured to receive a scanning message.
  • the scanning message includes channel parameters.
  • the channel parameters are used to define the target channel to be scanned.
  • the scanning message is a scanning message issued by the communication system where the terminal device is located. ;
  • the scanning unit 702 is configured to scan the target channel according to the channel parameters through the radio frequency circuit within the receiving time slot when the terminal device is working.
  • a terminal device wherein the receiving unit 701 receives a scanning message, the scanning message contains channel parameters, and the channel parameters are used to indicate a target channel to be scanned; the scanning unit 702 uses a radio frequency circuit in the receiving time slot when the terminal device is working. , scan the target channel according to the channel parameters.
  • This solution uses radio frequency circuits to scan the corresponding target channel according to the channel parameters in the scanning message in the receiving time slot when the terminal equipment is working, so that the terminal equipment completes the scanning work corresponding to the scanning message when receiving the time slot. This eliminates the need to perform scanning work in idle time slots and reduces the power consumption of terminal equipment.
  • the receiving time slot includes a first time period when the radio frequency circuit performs a data reception task, and a second time period when the radio frequency circuit completes the data reception task and is in a working state; the scanning unit 702 is specifically configured to: scan the target channel according to the channel parameters through the radio frequency circuit during the second time period in the receiving time slot.
  • the terminal device 700 also includes: a delay unit 709, configured to delay turning off the radio frequency circuit that has completed the data reception task within the receiving time slot, wherein the radio frequency circuit is in this working state when it is not turned off. ;
  • the scanning unit is specifically used to: reset the scanning parameters of the radio frequency circuit according to the channel parameters; and scan the target channel by resetting the scanning parameters of the radio frequency circuit.
  • the receiving unit 701 is specifically configured to receive the scanning message in a receiving time slot before the receiving time slot or an idle time slot.
  • the terminal device 700 further includes: a cache unit 703, configured to add the channel parameters to the cache after receiving the scan message; an acquisition unit 704, configured to, within the receiving time slot, Obtain the channel parameters from the cache.
  • the terminal device 700 further includes: a sleep unit 705, configured to maintain the sleep state of the radio frequency circuit when the current time slot is an idle time slot.
  • a sleep unit 705 configured to maintain the sleep state of the radio frequency circuit when the current time slot is an idle time slot.
  • the terminal device 700 further includes: a deletion unit 706, configured to delete the channel parameter corresponding to the target channel in the cache.
  • the terminal device 700 also includes: a judgment unit 707, used to judge whether the channel parameter exists in the cache within the receiving time slot; a triggering unit 708, used to determine when the judgment unit determines whether the channel parameter exists in the buffer; When the channel parameter exists in the cache, the step of obtaining the channel parameter from the cache is triggered.
  • the channel parameters are frequency information of neighboring cells.
  • the scanning message is a monitor scanning message sent by the access network element in the land trunked radio Tetra system.
  • the working principle of the terminal device 700 provided in the embodiment of this application can be understood by referring to the corresponding content of the foregoing channel scanning method embodiment, and will not be repeated here.
  • the embodiment of the present application also provides a terminal device 800.
  • the terminal device 800 includes a processor 801 and a memory 803;
  • the memory stores instruction operations or codes
  • the processor is configured to communicate with the memory and execute instruction operations or codes in the memory to perform the channel scanning method as provided in FIG. 2 or FIG. 3 .
  • processor 801 and the memory 803 are connected through a bus 802.
  • the terminal equipment also includes a radio frequency receiving circuit and an FGU circuit.
  • Embodiments of the present application also provide a computer-readable storage medium that includes instructions that, when run on a computer, cause the computer to perform the channel scanning method as shown in Figure 2 or Figure 3 .
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solutions of the embodiments of the present application are essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

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Abstract

Sont divulgués dans les modes de réalisation de la présente demande un procédé de balayage de canal et un appareil associé. Le procédé est appliqué à un équipement terminal, l'équipement terminal comprenant un circuit radiofréquence. Le procédé comprend : la réception d'un message de balayage, le message de balayage comprenant un paramètre de canal, le paramètre de canal étant utilisé pour indiquer un canal cible à balayer, et le message de balayage étant un message de balayage émis par un système de communication où se trouve un équipement terminal ; et dans un créneau de réception dans lequel l'équipement terminal fonctionne, le balayage du canal cible au moyen d'un circuit radiofréquence selon le paramètre de canal. Dans la présente demande, dans un créneau de réception dans lequel un équipement terminal fonctionne, un canal cible correspondant est balayé selon un paramètre de canal dans un message de balayage, de telle sorte que l'équipement terminal achève, dans le créneau de réception, une opération de balayage correspondant au message de balayage, et n'a pas besoin d'effectuer une opération de balayage dans un créneau inactif en raison d'un message de balayage émis par un système de communication, ce qui permet de réduire la consommation d'énergie de l'équipement terminal.
PCT/CN2022/104590 2022-07-08 2022-07-08 Procédé de balayage de canal et appareil associé WO2024007294A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5627882A (en) * 1993-06-02 1997-05-06 U.S. Philips Corporation Enhanced power saving method for hand-held communications system and a hand-held communications system therefor
US20130308512A1 (en) * 2012-05-17 2013-11-21 Samsung Electronics Co. Ltd. Portable terminal and method for scanning access points
CN111327375A (zh) * 2018-12-14 2020-06-23 海能达通信股份有限公司 一种信道扫描的方法、通信终端及存储介质

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5627882A (en) * 1993-06-02 1997-05-06 U.S. Philips Corporation Enhanced power saving method for hand-held communications system and a hand-held communications system therefor
US20130308512A1 (en) * 2012-05-17 2013-11-21 Samsung Electronics Co. Ltd. Portable terminal and method for scanning access points
CN111327375A (zh) * 2018-12-14 2020-06-23 海能达通信股份有限公司 一种信道扫描的方法、通信终端及存储介质

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