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WO2021036774A1 - Procédé et dispositif de resélection de cellule - Google Patents

Procédé et dispositif de resélection de cellule Download PDF

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Publication number
WO2021036774A1
WO2021036774A1 PCT/CN2020/108234 CN2020108234W WO2021036774A1 WO 2021036774 A1 WO2021036774 A1 WO 2021036774A1 CN 2020108234 W CN2020108234 W CN 2020108234W WO 2021036774 A1 WO2021036774 A1 WO 2021036774A1
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WO
WIPO (PCT)
Prior art keywords
cell
network
frequency
terminal
supports
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/108234
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English (en)
Chinese (zh)
Inventor
张晓然
徐晓东
胡南
李男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
Original Assignee
China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Group Co Ltd, Research Institute of China Mobile Communication Co Ltd filed Critical China Mobile Communications Group Co Ltd
Publication of WO2021036774A1 publication Critical patent/WO2021036774A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements

Definitions

  • the present disclosure relates to the field of mobile communication technology, and in particular to a cell reselection method and device.
  • the terminal in the idle state performs cell reselection through the frequency priority configured by the network, and selects the frequency where the priority resides.
  • the frequency priority configured by the network
  • the frequency priority of dedicated signaling has an effective time. After the effective time, the dedicated frequency priority becomes invalid, and the terminal adopts the frequency priority in the system message broadcast .
  • the LTE base station acts as the main base station (That is, MeNB)
  • NR base station gNB serves as a secondary base station (ie, SgNB)
  • the eNB is connected to the 4G core network (EPC) through the S1 interface
  • the gNB and the eNB can be connected through the X2 interface.
  • EPC 4G core network
  • the terminal stays on the LTE frequency in the idle state. After entering the connected state, the network will configure the terminal with an NR secondary node, so that the terminal enters the EN-DC mode.
  • the TDD frequency configuration in the original LTE network has a higher priority; however, considering the coverage of LTE in the EN-DC network, the low-frequency FDD frequency is usually used as the EN-DC frequency.
  • LTE anchor point, and FDD frequency usually has the problem of small bandwidth and limited capacity.
  • One possible solution is to configure frequency priority through dedicated signaling.
  • the network can learn the capability information of the terminal, and the terminal can be configured with dedicated frequency priority based on the capability information of the terminal, for example, an EN-DC terminal Configure the LTE frequency priority that supports EN-DC as high priority.
  • the terminal after receiving the dedicated priority indication, the terminal will execute the dedicated priority for a period of time while ignoring the priority information transmitted in the system information. If the dedicated frequency priority is configured only through the terminal's capability information, it may result in that during this period, if the terminal moves to some areas that are not covered by 5G (the area that cannot be used as EN-DC), the terminal will also follow the dedicated priority Select the target frequency cell instead of selecting the target frequency cell according to the priority indicated by the system message, which may lead to network load imbalance on the corresponding frequency. Similar solutions are also used in other scenarios, so similar problems also exist.
  • At least one embodiment of the present disclosure provides a cell reselection method and device.
  • the terminal can determine the frequency priority according to the cell measurement result, so as to realize more accurate cell reselection, avoid or reduce frequency congestion, and improve the communication of the terminal. effectiveness.
  • At least one embodiment provides a cell reselection method applied to a terminal, including:
  • the first frequency priority or the second frequency priority is used for cell reselection.
  • the step of using the first frequency priority or the second frequency priority to perform cell reselection according to the cell measurement result includes:
  • the first frequency priority or the second frequency priority is used to perform cell reselection.
  • the step of using the first frequency priority or the second frequency priority to perform cell reselection includes:
  • the terminal When the terminal resides in the first cell of the first network, when the cell measurement result meets the first condition, the terminal uses the first frequency priority for cell reselection; otherwise, the second frequency priority is used for cell reselection.
  • Cell reselection wherein the first condition includes at least one of the following:
  • the terminal has not measured the second cell of the second network
  • the third cell of the second network measured by the terminal does not meet the preset cell quality condition.
  • the first condition further includes at least one of the following:
  • the terminal measures the fourth cell of the second network, but the terminal does not support the dual connection of the first network and the second network;
  • the terminal measures the fifth cell of the second network, and the terminal supports the dual connection of the first network and the second network, but does not support the dual connection frequency band combination including the first frequency of the first cell;
  • the terminal measures the sixth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but does not support the dual connectivity including the first frequency.
  • the terminal measures that the seventh cell of the second network meets a preset cell quality condition, but the terminal does not support dual connections between the first network and the second network;
  • the terminal measures that the eighth cell of the second network meets the preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network, but does not support the dual connectivity frequency band including the first frequency of the first cell combination;
  • the terminal measures that the ninth cell of the second network meets a preset cell quality condition, the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell , But does not support dual-connection band combinations that include the frequency of the first frequency and the frequency of the ninth cell.
  • the method before the step of using the first frequency priority or the second frequency priority for cell reselection, the method further includes:
  • the first condition further includes at least one of the following:
  • the terminal measures the twelfth cell of the second network, but the first cell does not support dual connectivity of the first network and the second network;
  • the terminal measures the thirteenth cell of the second network, where the first cell supports dual connectivity between the first network and the second network, but the thirteenth cell does not support dual connectivity between the first network and the second network;
  • the terminal measures the fourteenth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but the fourteenth
  • the cell does not support a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the fourteenth cell;
  • the terminal measures that the fifteenth cell of the second network meets a preset cell quality condition, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures that the sixteenth cell of the second network meets the preset cell quality conditions.
  • the first cell supports dual connectivity between the first network and the second network, but the sixteenth cell does not support the first network and the second network.
  • the terminal measures that the seventeenth cell of the second network satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell , But the seventeenth cell does not support a dual-connection frequency band combination that includes the frequencies of the first frequency and the seventeenth cell.
  • the step of using the first frequency priority or the second frequency priority to perform cell reselection includes:
  • the terminal uses the second frequency priority for cell reselection when the cell measurement result meets the second condition, otherwise, uses the first frequency priority for cell reselection Cell reselection, wherein the second condition includes at least one of the following:
  • the terminal measures the eighteenth cell of the second network
  • the nineteenth cell of the second network measured by the terminal satisfies a preset cell quality condition.
  • the second condition further includes at least one of the following:
  • the terminal measures the twentieth cell of the second network, and the terminal supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-first cell of the second network, and the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell;
  • the terminal measures the twenty-second cell of the second network, and the terminal supports the dual connection of the first network and the second network, and supports a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the twenty-second cell;
  • the twenty-third cell of the second network measured by the terminal satisfies a preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network;
  • the twenty-fourth cell of the second network measured by the terminal satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection of the first frequency including the first cell Connection frequency band combination;
  • the twenty-fifth cell of the second network measured by the terminal satisfies a preset cell quality condition, the terminal supports dual connections between the first network and the second network, and the terminal supports the first frequency and the twenty-fifth cell.
  • the method before the step of using the first frequency priority or the second frequency priority for cell reselection, the method further includes:
  • the second condition further includes at least one of the following:
  • the terminal measures the twenty-sixth cell of the second network, and the first cell supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-seventh cell of the second network, the first cell supports the dual connection of the first network and the second network, and the twentieth cell supports the dual connection of the first network and the second network;
  • the twenty-eighth cell of the second network measured by the terminal satisfies a preset cell quality condition, and the first cell supports dual connectivity of the first network and the second network;
  • the twenty-ninth cell of the second network measured by the terminal satisfies a preset cell quality condition, the first cell supports dual connectivity between the first network and the second network, and the twenty-ninth cell supports the first network Dual connection with the second network.
  • the step of receiving the first frequency priority and the second frequency priority of at least one frequency sent by the network device includes:
  • the cell in the second network measured by the terminal is a cell in a preset second network cell list, or a cell in a second network cell list sent by a network device.
  • the preset cell quality conditions include at least one of the following:
  • the RSRP of the cell satisfies a preset threshold, and the preset threshold adopts a preset configured value or a value issued by a network device.
  • At least one embodiment provides a terminal, including:
  • An information receiving module configured to receive the first frequency priority and the second frequency priority of at least one frequency sent by the network device
  • the cell reselection module is configured to use the first frequency priority or the second frequency priority to perform cell reselection according to the cell measurement result.
  • the cell reselection module is further configured to use the first frequency priority or the second frequency priority to perform cell reselection according to whether the cell measurement result meets the first condition and/or whether the second condition is satisfied .
  • the cell reselection module is further configured to use the first frequency priority when the terminal is camped on the first cell of the first network, and the measurement result of the terminal in the cell meets a first condition Perform cell reselection, otherwise use the second frequency priority for cell reselection, where the first condition includes at least one of the following:
  • the terminal has not measured the second cell of the second network
  • the third cell of the second network measured by the terminal does not meet the preset cell quality condition.
  • the first condition further includes at least one of the following:
  • the terminal measures the fourth cell of the second network, but the terminal does not support the dual connection of the first network and the second network;
  • the terminal measures the fifth cell of the second network, and the terminal supports the dual connection of the first network and the second network, but does not support the dual connection frequency band combination including the first frequency of the first cell;
  • the terminal measures the sixth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but does not support the dual connectivity including the first frequency.
  • the terminal measures that the seventh cell of the second network meets a preset cell quality condition, but the terminal does not support dual connections between the first network and the second network;
  • the terminal measures that the eighth cell of the second network meets the preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network, but does not support the dual connectivity frequency band including the first frequency of the first cell combination;
  • the terminal measures that the ninth cell of the second network meets a preset cell quality condition, the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell , But does not support dual-connection band combinations that include the frequency of the first frequency and the frequency of the ninth cell.
  • the information receiving module is further configured to receive the frequency of at least one cell and the capability information of whether the cell supports dual connectivity sent by the network device.
  • the first condition further includes at least one of the following:
  • the terminal measures the twelfth cell of the second network, but the first cell does not support dual connectivity of the first network and the second network;
  • the terminal measures the thirteenth cell of the second network, and the first cell supports the dual connection of the first network and the second network, but the thirteenth cell does not support the dual connection of the first network and the second network;
  • the terminal measures the fourteenth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but the fourteenth
  • the cell does not support a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the fourteenth cell;
  • the terminal measures that the fifteenth cell of the second network meets a preset cell quality condition, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures that the sixteenth cell of the second network meets the preset cell quality conditions.
  • the first cell supports dual connectivity between the first network and the second network, but the sixteenth cell does not support the first network and the second network.
  • the terminal measures that the seventeenth cell of the second network satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell , But the seventeenth cell does not support a dual-connection frequency band combination that includes the frequencies of the first frequency and the seventeenth cell.
  • the cell reselection module is further configured to use the second frequency priority when the terminal's cell measurement result meets a second condition when the terminal is camped on the first cell of the first network Perform cell reselection, otherwise use the first frequency priority for cell reselection, where the second condition includes at least one of the following:
  • the terminal measures the eighteenth cell of the second network
  • the nineteenth cell of the second network measured by the terminal satisfies a preset cell quality condition.
  • the second condition further includes at least one of the following:
  • the terminal measures the twentieth cell of the second network, and the terminal supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-first cell of the second network, and the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell;
  • the terminal measures the twenty-second cell of the second network, and the terminal supports the dual connection of the first network and the second network, and supports a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the twenty-second cell;
  • the twenty-third cell of the second network measured by the terminal satisfies a preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network;
  • the twenty-fourth cell of the second network measured by the terminal satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection of the first frequency including the first cell Connection frequency band combination;
  • the twenty-fifth cell of the second network measured by the terminal satisfies a preset cell quality condition, the terminal supports dual connections between the first network and the second network, and the terminal supports the first frequency and the twenty-fifth cell.
  • the information receiving module is further configured to receive the frequency of at least one cell and the capability information of whether the cell supports dual connectivity sent by the network device.
  • the second condition further includes at least one of the following:
  • the terminal measures the twenty-sixth cell of the second network, and the first cell supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-seventh cell of the second network, the first cell supports the dual connection of the first network and the second network, and the twentieth cell supports the dual connection of the first network and the second network;
  • the twenty-eighth cell of the second network measured by the terminal satisfies a preset cell quality condition, and the first cell supports dual connectivity of the first network and the second network;
  • the twenty-ninth cell of the second network measured by the terminal satisfies a preset cell quality condition, the first cell supports dual connectivity between the first network and the second network, and the twenty-ninth cell supports the first network Dual connection with the second network.
  • the information receiving module is further configured to receive the first frequency priority sent by the network device through a broadcast message; and receive the second frequency priority sent by the network device through a broadcast message or dedicated signaling .
  • the cell in the second network measured by the terminal is a cell in a preset second network cell list, or a cell in a second network cell list sent by a network device.
  • the preset cell quality conditions include at least one of the following:
  • the RSRP of the cell satisfies a preset threshold, and the preset threshold adopts a preset configured value or a value issued by a network device.
  • At least one embodiment provides a terminal including a transceiver and a processor, wherein:
  • the transceiver is configured to receive a first frequency priority and a second frequency priority of at least one frequency sent by a network device;
  • the processor is configured to use the first frequency priority or the second frequency priority to perform cell reselection according to the cell measurement result.
  • the processor is further configured to use the first frequency priority or the second frequency priority to perform cell reselection according to whether the cell measurement result meets the first condition and/or whether the second condition is satisfied.
  • the processor is further configured to: when the terminal is camped on the first cell of the first network, the measurement result of the terminal in the cell satisfies a first condition, and the first frequency priority is used to perform cell Reselect, otherwise use the second frequency priority for cell reselection, where the first condition includes at least one of the following:
  • the terminal has not measured the second cell of the second network
  • the third cell of the second network measured by the terminal does not meet the preset cell quality condition.
  • the first condition further includes at least one of the following:
  • the terminal measures the fourth cell of the second network, but the terminal does not support the dual connection of the first network and the second network;
  • the terminal measures the fifth cell of the second network, and the terminal supports the dual connection of the first network and the second network, but does not support the dual connection frequency band combination including the first frequency of the first cell;
  • the terminal measures the sixth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but does not support the dual connectivity including the first frequency.
  • the terminal measures that the seventh cell of the second network meets a preset cell quality condition, but the terminal does not support dual connections between the first network and the second network;
  • the terminal measures that the eighth cell of the second network satisfies the preset cell quality condition, and the terminal supports the dual connection of the first network and the second network, but does not support the dual connection frequency band including the first frequency of the first cell combination;
  • the terminal measures that the ninth cell of the second network satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell , But does not support dual-connection band combinations that include the frequency of the first frequency and the frequency of the ninth cell.
  • the transceiver is also used to receive the frequency of at least one cell and the capability information of whether the cell supports dual connectivity sent by the network device.
  • the first condition further includes at least one of the following:
  • the terminal measures the twelfth cell of the second network, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures the thirteenth cell of the second network, where the first cell supports dual connectivity between the first network and the second network, but the thirteenth cell does not support dual connectivity between the first network and the second network;
  • the terminal measures the fourteenth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but the fourteenth
  • the cell does not support a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the fourteenth cell;
  • the terminal measures that the fifteenth cell of the second network meets a preset cell quality condition, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures that the sixteenth cell of the second network meets the preset cell quality conditions.
  • the first cell supports dual connectivity between the first network and the second network, but the sixteenth cell does not support the first network and the second network.
  • the terminal measures that the seventeenth cell of the second network satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell , But the seventeenth cell does not support a dual-connection frequency band combination that includes the frequencies of the first frequency and the seventeenth cell.
  • the processor is further configured to: when the terminal is camped on the first cell of the first network, the measurement result of the terminal in the cell meets a second condition, and the second frequency priority is used to perform the cell Reselect, otherwise use the first frequency priority for cell reselection, where the second condition includes at least one of the following:
  • the terminal measures the eighteenth cell of the second network
  • the nineteenth cell of the second network measured by the terminal satisfies a preset cell quality condition.
  • the second condition further includes at least one of the following:
  • the terminal measures the twentieth cell of the second network, and the terminal supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-first cell of the second network, and the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell;
  • the terminal measures the twenty-second cell of the second network, and the terminal supports the dual connection of the first network and the second network, and supports a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the twenty-second cell;
  • the twenty-third cell of the second network measured by the terminal satisfies a preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network;
  • the twenty-fourth cell of the second network measured by the terminal satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection of the first frequency including the first cell Connection frequency band combination;
  • the twenty-fifth cell of the second network measured by the terminal satisfies a preset cell quality condition, the terminal supports dual connections between the first network and the second network, and the terminal supports the first frequency and the twenty-fifth cell.
  • the transceiver is also used to receive the frequency of at least one cell and the capability information of whether the cell supports dual connectivity sent by the network device.
  • the second condition further includes at least one of the following:
  • the terminal measures the twenty-sixth cell of the second network, and the first cell supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-seventh cell of the second network, the first cell supports the dual connection of the first network and the second network, and the twentieth cell supports the dual connection of the first network and the second network;
  • the twenty-eighth cell of the second network measured by the terminal satisfies a preset cell quality condition, and the first cell supports dual connectivity of the first network and the second network;
  • the twenty-ninth cell of the second network measured by the terminal satisfies a preset cell quality condition, the first cell supports dual connectivity between the first network and the second network, and the twenty-ninth cell supports the first network Dual connection with the second network.
  • the transceiver is further configured to receive the first frequency priority sent by the network device through a broadcast message; and receive the second frequency priority sent by the network device through a broadcast message or dedicated signaling.
  • the cell in the second network measured by the terminal is a cell in a preset second network cell list, or a cell in a second network cell list sent by a network device.
  • the preset cell quality conditions include at least one of the following:
  • the RSRP of the cell satisfies a preset threshold, and the preset threshold adopts a preset configured value or a value issued by a network device.
  • At least one embodiment provides a terminal including: a processor, a memory, and a program stored on the memory and capable of running on the processor, the program being processed by the When the device is executed, the steps of the cell reselection method described above are implemented.
  • At least one embodiment provides a computer-readable storage medium with a program stored on the computer-readable storage medium, and when the program is executed by a processor, it implements the method described above. step.
  • the terminal can determine the frequency priority according to the cell measurement result, and then select a high-priority cell for cell reselection according to the determined frequency priority, thereby It can control the terminal to reselect to a more suitable cell, realize more accurate cell reselection, avoid or reduce congestion in certain frequencies, and improve the communication efficiency of the terminal.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the disclosure
  • FIG. 2 is a flowchart of a cell reselection method provided by an embodiment of the disclosure
  • FIG. 3 is a schematic structural diagram of a terminal provided by an embodiment of the disclosure.
  • FIG. 4 is a schematic diagram of another structure of a terminal provided by an embodiment of the disclosure.
  • the technology described in this article is not limited to NR systems and Long Time Evolution (LTE)/LTE-Advanced (LTE-A) systems, and can also be used in various wireless communication systems, such as code division multiple access.
  • Code Division Multiple Access CDMA
  • Time Division Multiple Access TDMA
  • Frequency Division Multiple Access FDMA
  • Orthogonal Frequency Division Multiple Access OFDMA
  • Single-carrier Frequency-Division Multiple Access SC-FDMA
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • the terms “system” and “network” are often used interchangeably.
  • the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
  • GSM Global System for Mobile Communication
  • the OFDMA system can implement radios such as UltraMobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE802.21 (Wi-Fi), IEEE802.16 (WiMAX), IEEE802.20, Flash-OFDM, etc. technology.
  • UMB UltraMobile Broadband
  • Evolved UTRA Evolved UTRA
  • E-UTRA Evolved UTRA
  • IEEE802.21 Wi-Fi
  • WiMAX IEEE802.16
  • IEEE802.20 Flash-OFDM
  • Flash-OFDM Flash-OFDM
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
  • the following description describes the NR system for exemplary purposes, and NR terminology is used in most of the following description, although these techniques can also be applied to applications other than NR system applications.
  • FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present disclosure can be applied.
  • the wireless communication system includes a terminal 11 and a network device 12.
  • the terminal 11 may also be called a user terminal or a user equipment (UE, User Equipment), and the terminal 11 may be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), or a personal digital assistant (Personal Digital Assistant).
  • PDA mobile Internet device
  • MID mobile Internet Device
  • Wearable Device wearable device
  • vehicle-mounted device it should be noted that the specific type of terminal 11 is not limited in the embodiments of the present disclosure .
  • the network device 12 may be a base station and/or a core network element, where the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN Access point, or other access points, etc.), where the base station can be called Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node or As long as some other suitable terminology in the field achieves the same technical effect, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiments of the present disclosure, only the base station in the NR system is taken as an example, but not The specific
  • the base station may communicate with the terminal 11 under the control of the base station controller.
  • the base station controller may be a part of the core network or some base stations. Some base stations can communicate control information or user data with the core network through the backhaul. In some examples, some of these base stations may directly or indirectly communicate with each other through a backhaul link, which may be a wired or wireless communication link.
  • the wireless communication system can support operations on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can simultaneously transmit modulated signals on these multiple carriers. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (for example, reference signals, control channels, etc.), overhead information, data, and so on.
  • the base station may perform wireless communication with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its corresponding coverage area. The coverage area of an access point can be divided into sectors that constitute only a part of the coverage area.
  • the wireless communication system may include different types of base stations (for example, a macro base station, a micro base station, or a pico base station).
  • the base station can also utilize different radio technologies, such as cellular or WLAN radio access technologies.
  • the base stations can be associated with the same or different access networks or operator deployments.
  • the coverage areas of different base stations may overlap.
  • the communication link in the wireless communication system may include an uplink for carrying uplink (UL) transmission (for example, from the terminal 11 to the network device 12), or for carrying a downlink (DL) Transmission (e.g., from the network device 12 to the terminal 11) downlink.
  • UL transmission may also be referred to as reverse link transmission
  • DL transmission may also be referred to as forward link transmission.
  • Downlink transmission can use licensed frequency bands, unlicensed frequency bands, or both.
  • uplink transmission can be performed using licensed frequency bands, unlicensed frequency bands, or both.
  • the cell reselection method provided by the embodiment of the present disclosure when applied to the terminal side, includes:
  • Step 21 Receive the first frequency priority and the second frequency priority of at least one frequency sent by the network device.
  • the at least one frequency may be one or more frequencies.
  • the network device configures the at least one frequency with two different frequency priorities, that is, the first frequency priority and the second frequency priority.
  • the first frequency priority specifies the priority of each of the above at least one frequency.
  • the second frequency priority also specifies the priority of each of the above at least one frequency. It needs to be pointed out that , There is at least one frequency, and its priority order in the first and second frequency priorities is different.
  • frequencies F1 and F2 where the priorities of frequencies F1 and F2 in the first frequency priority are 1 and 2, and the priority in the second frequency priority is 2 and 1, that is to say, in the first frequency priority, the priority of frequency F1 is lower than that of frequency F2; in the second frequency priority Among them, frequency F1 has a higher priority than frequency F2.
  • the terminal may receive the first frequency priority sent by the network device through a first broadcast message; and, receive the second frequency priority sent by the network device through a second broadcast message or dedicated signaling. priority.
  • the above-mentioned first broadcast message and the second broadcast message may be the same message or different messages, which are not specifically limited in the embodiment of the present disclosure.
  • the foregoing broadcast message may be various system messages, the foregoing dedicated signaling may be radio resource control (RRC) signaling, etc., and the foregoing network device may specifically be a base station or other access devices, such as a transceiver point TRP.
  • RRC radio resource control
  • Step 22 Use the first frequency priority or the second frequency priority to perform cell reselection according to the cell measurement result.
  • the terminal may use the first frequency priority or the second frequency priority to perform cell reselection according to whether the cell measurement result meets the first condition and/or whether the second condition is satisfied.
  • the cell measurement result may include the measurement result of the first cell in the first network where the terminal resides, and may also include the measurement result of the neighboring cell of the first cell, and the neighboring cell may be the same network (that is, the first network).
  • the first network and the second network may be networks based on radio access technology (RTA).
  • RTA radio access technology
  • the first network is an LTE network
  • the second network is an LTE network.
  • the network is a 5G NR network; the first network and the second network may also be networks deployed for different application scenarios, such as a second network suitable for fast-moving terminals deployed around a high-speed rail track, and a network for normal moving speeds.
  • the first and second networks may be based on the same or different RATs.
  • the terminal of the embodiment of the present disclosure can determine the frequency priority according to the cell measurement result, and then select a high-priority cell for cell reselection according to the determined frequency priority, thereby controlling the terminal to reselect to a more suitable cell , To achieve more accurate cell reselection, avoid or reduce congestion in certain frequencies, and improve the communication efficiency of the terminal.
  • the cell measurement result of the terminal meets the first condition, and the first frequency priority is used for cell reselection; otherwise, the first frequency priority is used for cell reselection.
  • Cell reselection is performed with second frequency priority, where the first condition includes one or more of the following situations:
  • the first, second, and n-th cells all refer to an arbitrary cell in the corresponding network, and do not specifically refer to a specific cell.
  • the capability information of the terminal when cell reselection is performed, the capability information of the terminal, such as whether to support dual connectivity, whether to support a certain dual connectivity frequency band combination, etc., can be used to determine whether to use the first frequency priority for cell reselection.
  • the first frequency priority or the second frequency priority may be used for cell reselection according to whether the cell measurement result and the terminal capability information meet the first condition.
  • the first frequency priority or the second frequency priority may be used for cell reselection.
  • the first condition may also include at least one of the following conditions:
  • the terminal measures the fourth cell of the second network, but the terminal does not support the dual connection of the first network and the second network.
  • the terminal measures the fifth cell of the second network, and the terminal supports the dual connection of the first network and the second network, but does not support the dual connection frequency band combination including the first frequency of the first cell.
  • the terminal measures the sixth cell of the second network.
  • the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell, but does not support The dual-connection frequency band combination of the first frequency and the frequency of the sixth cell.
  • the terminal measures that the seventh cell of the second network meets the preset cell quality condition, but the terminal does not support the dual connection of the first network and the second network.
  • the terminal measures that the eighth cell of the second network meets the preset cell quality conditions.
  • the terminal supports dual connections between the first network and the second network, but does not support dual connections that include the first frequency of the first cell. Connect the frequency band combination.
  • the terminal measures that the ninth cell of the second network meets the preset cell quality conditions, and the terminal supports the dual connection of the first network and the second network, and supports the dual connection of the first frequency including the first cell Frequency band combination, but does not support dual-connection frequency band combination including the first frequency and the frequency of the ninth cell.
  • the first condition of the embodiment of the present disclosure can be any one or more of the above-mentioned first to eighth conditions.
  • the first condition includes the above-mentioned multiple conditions, it is necessary to ensure that the multiple conditions are There is no subset relationship between them, that is, there is no one of the multiple situations, and it belongs to a subset of the other of the multiple situations.
  • the network/cell may also support or not support dual connectivity, and support or not support a certain combination of dual connectivity frequency bands, etc. Therefore, in step 22 above, at this time, in step 22 above, it can be based on the cell Whether the measurement result, terminal capability information, and cell capability information meet the first condition, use the first frequency priority or the second frequency priority for cell reselection.
  • the first condition may also include at least one of the following Situation:
  • the terminal measures the twelfth cell of the second network, but the first cell does not support dual connectivity of the first network and the second network.
  • the terminal measures the thirteenth cell of the second network.
  • the first cell supports the dual connection of the first network and the second network, but the thirteenth cell does not support the dual connection of the first network and the second network .
  • the terminal measures the fourteenth cell of the second network.
  • the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell.
  • the fourteenth cell does not support a dual-connection frequency band combination including the frequency of the first frequency and the fourteenth cell.
  • the terminal measures that the fifteenth cell of the second network meets the preset cell quality condition, but the first cell does not support the dual connection of the first network and the second network.
  • the terminal measures that the sixteenth cell of the second network meets the preset cell quality condition, and the first cell supports dual connectivity between the first network and the second network, but the sixteenth cell does not support the first network Dual connection with the second network.
  • the terminal measured that the seventeenth cell of the second network satisfies the preset cell quality condition, and the terminal supports the dual connection of the first network and the second network, and supports the dual connection of the first frequency including the first cell Frequency band combination, but the seventeenth cell does not support a dual-connection frequency band combination including the frequencies of the first frequency and the seventeenth cell.
  • the first condition of the embodiment of the present disclosure may be any one or more of the above-mentioned first to fourteenth conditions.
  • the first condition includes the above-mentioned multiple conditions, it is necessary to ensure that the There is no subset relationship among multiple situations, that is, there is no one situation in the multiple situations, and it belongs to a subset of another situation in the multiple situations.
  • the second frequency priority is used for cell reselection, otherwise the first frequency priority is used for cell reselection Reselection, wherein the second condition includes at least one of the following:
  • the terminal measures the eighteenth cell of the second network
  • the capability information of the terminal when cell reselection is performed, the capability information of the terminal, such as whether to support dual connectivity, whether to support a certain dual connectivity frequency band combination, etc., can be used to determine whether to use the second frequency priority for cell reselection.
  • the second frequency priority or the first frequency priority may be used for cell reselection according to whether the cell measurement result and the terminal capability information meet the second condition.
  • the second frequency priority or the first frequency priority may be used for cell reselection.
  • the second condition may also include at least one of the following conditions:
  • the terminal measures the twentieth cell of the second network, and the terminal supports dual connections between the first network and the second network;
  • the terminal measures the twenty-first cell of the second network, and the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell;
  • the terminal measures the twenty-second cell of the second network, and the terminal supports the dual connection of the first network and the second network, and supports the dual-connection frequency band including the frequency of the first frequency and the frequency of the twenty-second cell combination;
  • the twenty-third cell of the second network measured by the terminal satisfies a preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network;
  • the twenty-fourth cell of the second network measured by the terminal satisfies the preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network, and supports the first frequency including the first cell Dual-connection frequency band combination;
  • the twenty-fifth cell of the second network measured by the terminal satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and the terminal supports the first frequency and the second network.
  • the second condition of the embodiment of the present disclosure can be any one or more of the above A to H conditions.
  • the first condition includes the above multiple conditions, it is necessary to ensure that the multiple conditions are There is no subset relationship between them, that is, there is no one of the multiple situations, and it belongs to a subset of the other of the multiple situations.
  • the network/cell may also support or not support dual connectivity, and support or not support a certain combination of dual connectivity frequency bands, etc. Therefore, in step 22 above, at this time, in step 22 above, it can be based on the cell Whether the measurement result, terminal capability information, and cell capability information meet the second condition, use the second frequency priority or the first frequency priority for cell reselection.
  • the second condition may also include at least one of the following Situation:
  • the terminal measures the twenty-sixth cell of the second network, and the first cell supports dual connectivity of the first network and the second network.
  • the terminal measures the twenty-seventh cell of the second network, the first cell supports dual connectivity of the first network and the second network, and the twentieth cell supports dual connectivity of the first network and the second network .
  • the twenty-eighth cell of the second network measured by the terminal satisfies a preset cell quality condition, and the first cell supports dual connectivity of the first network and the second network.
  • the twenty-ninth cell of the second network measured by the terminal satisfies a preset cell quality condition, the first cell supports dual connectivity between the first network and the second network, and the twenty-ninth cell supports the first network Dual connection of a network and a second network.
  • the second condition of the embodiment of the present disclosure may be any one or more of the above A to L conditions.
  • the second condition includes the above multiple conditions, it needs to be guaranteed. There is no subset relationship among multiple situations, that is, there is no one situation in the multiple situations, and it belongs to a subset of another situation in the multiple situations.
  • the terminal in order to obtain the capability information of the cell, before step 22, the terminal may also receive the frequency of at least one cell and the capability information of whether the cell supports dual connectivity sent by the network device.
  • the dual connectivity capability information may indicate whether the cell supports dual connectivity of the first network and the second network, and the dual connectivity frequency band combination supported when the dual connectivity is supported, and so on.
  • the cell in the second network measured by the terminal may be a cell in a preset second network cell list, or a cell sent by a network device. 2.
  • the preset cell quality condition includes at least one of the following:
  • the reference signal received power (RSRP) of the cell satisfies a preset threshold, and the preset threshold adopts a preset configured value or a value issued by a network device.
  • the aforementioned cell selection criteria may include the following criteria (only examples and not used to limit the present disclosure):
  • the network sends the first frequency priority through a broadcast message, where: the frequency priority of frequency f1 is 2, and the frequency priority of frequency f2 is 1. Assume that the larger the value of the frequency priority, the higher the priority.
  • the network sends the second frequency priority through dedicated signaling, where: the frequency priority of frequency f1 is 1, and the frequency priority of frequency f2 is 2
  • the terminal receives the frequency priority sent by the network.
  • the terminal uses the second frequency priority sent in the dedicated signaling, that is, the priority of f2 is high and the priority of f1 is low, and cell reselection is performed according to the second frequency priority.
  • the terminal does not measure the NR frequency point, it continues to use the first frequency priority sent by the broadcast message, that is, the priority of f1 is high and the priority of f2 is low, and cell reselection is performed according to the first frequency priority.
  • the network sends the first frequency priority through a broadcast message, where: the frequency priority of LTE frequency f1 is 3, the frequency priority of LTE frequency f2 is 2, the frequency priority of NR frequency f3 is 1, and the frequency priority of NR frequency f3 is 1.
  • the frequency priority of frequency f4 is 0. Assume that the larger the value of the frequency priority, the higher the priority.
  • LTE f1 frequency priority is 2
  • LTE f2 frequency priority is 3
  • NR f3 frequency priority is 1
  • NR f4 frequency priority is 0.
  • the terminal measures the NR frequency points f3 and f4, it uses the second frequency priority sent in the dedicated signaling, that is, the priority of f2 is high, and the priority of f1 is low, and the cell is performed according to the second frequency priority.
  • the terminal uses the second frequency priority sent in the dedicated signaling, that is, the priority of f2 is high, and the priority of f1 is low, and cell reselection is performed according to the second frequency priority
  • the terminal measures the NR frequency point f4 or does not measure the NR frequency point
  • the first frequency priority sent by the broadcast message is used, that is, the priority of f1 is high, and the priority of f2 is low. According to the first frequency priority Level to perform cell reselection.
  • the terminal can realize a more appropriate cell reselection based on the cell measurement results, and reselect to a more appropriate cell, which can avoid or reduce congestion on certain frequencies and improve the communication of the terminal. effectiveness.
  • the embodiments of the present disclosure also provide a device for implementing the above method.
  • an embodiment of the present disclosure provides a terminal 30, including:
  • the information receiving module 31 is configured to receive the first frequency priority and the second frequency priority of at least one frequency sent by the network device;
  • the cell reselection module 32 is configured to use the first frequency priority or the second frequency priority to perform cell reselection according to the cell measurement result.
  • the cell reselection module 32 is further configured to use the first frequency priority or the second frequency priority to perform cell reselection according to whether the cell measurement result meets the first condition and/or whether the second condition is satisfied. selected.
  • the cell reselection module 32 is further configured to, when the terminal is camped on the first cell of the first network, the measurement result of the terminal in the cell satisfies a first condition, and the first frequency is preferentially used. Cell reselection is performed at the first level, otherwise the second frequency priority is used for cell reselection, where the first condition includes at least one of the following:
  • the terminal has not measured the second cell of the second network
  • the third cell of the second network measured by the terminal does not meet the preset cell quality condition.
  • the first condition further includes at least one of the following:
  • the terminal measures the fourth cell of the second network, but the terminal does not support the dual connection of the first network and the second network;
  • the terminal measures the fifth cell of the second network, and the terminal supports the dual connection of the first network and the second network, but does not support the dual connection frequency band combination including the first frequency of the first cell;
  • the terminal measures the sixth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but does not support the dual connectivity including the first frequency.
  • the terminal measures that the seventh cell of the second network meets a preset cell quality condition, but the terminal does not support dual connections between the first network and the second network;
  • the terminal measures that the eighth cell of the second network meets the preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network, but does not support the dual connectivity frequency band including the first frequency of the first cell combination;
  • the terminal measures that the ninth cell of the second network meets a preset cell quality condition, the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell , But does not support dual-connection band combinations that include the frequency of the first frequency and the frequency of the ninth cell.
  • the information receiving module is further configured to receive the frequency of at least one cell and the capability information of whether the cell supports dual connectivity sent by the network device.
  • the first condition further includes at least one of the following:
  • the terminal measures the twelfth cell of the second network, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures the thirteenth cell of the second network, where the first cell supports dual connectivity between the first network and the second network, but the thirteenth cell does not support dual connectivity between the first network and the second network;
  • the terminal measures the fourteenth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but the fourteenth
  • the cell does not support a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the fourteenth cell;
  • the terminal measures that the fifteenth cell of the second network meets a preset cell quality condition, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures that the sixteenth cell of the second network meets the preset cell quality conditions.
  • the first cell supports dual connectivity between the first network and the second network, but the sixteenth cell does not support the first network and the second network.
  • the terminal measures that the seventeenth cell of the second network satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell , But the seventeenth cell does not support a dual-connection frequency band combination that includes the frequencies of the first frequency and the seventeenth cell.
  • the cell reselection module 32 is further configured to: when the terminal camps on the first cell of the first network, the measurement result of the terminal in the cell satisfies a second condition, and the second frequency is preferentially used. Cell reselection is performed at the first level, otherwise the first frequency priority is used for cell reselection, where the second condition includes at least one of the following:
  • the terminal measures the eighteenth cell of the second network
  • the nineteenth cell of the second network measured by the terminal satisfies a preset cell quality condition.
  • the second condition further includes at least one of the following:
  • the terminal measures the twentieth cell of the second network, and the terminal supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-first cell of the second network, and the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell;
  • the terminal measures the twenty-second cell of the second network, and the terminal supports the dual connection of the first network and the second network, and supports a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the twenty-second cell;
  • the twenty-third cell of the second network measured by the terminal satisfies a preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network;
  • the twenty-fourth cell of the second network measured by the terminal satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection of the first frequency including the first cell Connection frequency band combination;
  • the twenty-fifth cell of the second network measured by the terminal satisfies a preset cell quality condition, the terminal supports dual connections between the first network and the second network, and the terminal supports the first frequency and the twenty-fifth cell.
  • the information receiving module is further configured to receive the frequency of at least one cell and the capability information of whether the cell supports dual connectivity sent by the network device.
  • the second condition further includes at least one of the following:
  • the terminal measures the twenty-sixth cell of the second network, and the first cell supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-seventh cell of the second network, the first cell supports the dual connection of the first network and the second network, and the twentieth cell supports the dual connection of the first network and the second network;
  • the twenty-eighth cell of the second network measured by the terminal satisfies a preset cell quality condition, and the first cell supports dual connectivity of the first network and the second network;
  • the twenty-ninth cell of the second network measured by the terminal satisfies a preset cell quality condition, the first cell supports dual connectivity between the first network and the second network, and the twenty-ninth cell supports the first network Dual connection with the second network.
  • the information receiving module is further configured to receive the first frequency priority sent by the network device through a broadcast message; and receive the second frequency priority sent by the network device through a broadcast message or dedicated signaling .
  • the cell in the second network measured by the terminal is a cell in a preset second network cell list, or a cell in a second network cell list sent by a network device.
  • the preset cell quality conditions include at least one of the following:
  • the RSRP of the cell satisfies a preset threshold, and the preset threshold adopts a preset configured value or a value issued by a network device.
  • the terminal 400 includes a processor 401, a transceiver 402, a memory 403, a user interface 404, and a bus interface, where:
  • the terminal 400 further includes a program stored in the memory 403 and capable of running on the processor 401, and the following steps are implemented when the program is executed by the processor 401:
  • the first frequency priority or the second frequency priority is used for cell reselection.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 401 and various circuits of the memory represented by the memory 403 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 402 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the user interface 404 may also be an interface capable of externally connecting internally required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 401 is responsible for managing the bus architecture and general processing, and the memory 403 can store data used by the processor 401 when performing operations.
  • the first frequency priority or the second frequency priority is used to perform cell reselection.
  • the first frequency priority is used for cell reselection, otherwise the second frequency priority is used for cell reselection ,
  • the first condition includes at least one of the following:
  • the terminal has not measured the second cell of the second network
  • the third cell of the second network measured by the terminal does not meet the preset cell quality condition.
  • the first condition further includes at least one of the following:
  • the terminal measures the fourth cell of the second network, but the terminal does not support the dual connection of the first network and the second network;
  • the terminal measures the fifth cell of the second network, and the terminal supports the dual connection of the first network and the second network, but does not support the dual connection frequency band combination including the first frequency of the first cell;
  • the terminal measures the sixth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but does not support the dual connectivity including the first frequency.
  • the terminal measures that the seventh cell of the second network meets a preset cell quality condition, but the terminal does not support dual connections between the first network and the second network;
  • the terminal measures that the eighth cell of the second network meets the preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network, but does not support the dual connectivity frequency band including the first frequency of the first cell combination;
  • the terminal measures that the ninth cell of the second network meets a preset cell quality condition, the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell , But does not support dual-connection band combinations that include the frequency of the first frequency and the frequency of the ninth cell.
  • the first condition further includes at least one of the following:
  • the terminal measures the twelfth cell of the second network, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures the thirteenth cell of the second network, where the first cell supports dual connectivity between the first network and the second network, but the thirteenth cell does not support dual connectivity between the first network and the second network;
  • the terminal measures the fourteenth cell of the second network.
  • the terminal supports the dual connectivity of the first network and the second network, and supports the dual connectivity frequency band combination including the first frequency of the first cell, but the fourteenth
  • the cell does not support a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the fourteenth cell;
  • the terminal measures that the fifteenth cell of the second network meets a preset cell quality condition, but the first cell does not support dual connectivity between the first network and the second network;
  • the terminal measures that the sixteenth cell of the second network meets the preset cell quality conditions.
  • the first cell supports dual connectivity between the first network and the second network, but the sixteenth cell does not support the first network and the second network.
  • the terminal measures that the seventeenth cell of the second network satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection frequency band combination including the first frequency of the first cell , But the seventeenth cell does not support a dual-connection frequency band combination that includes the frequencies of the first frequency and the seventeenth cell.
  • the second frequency priority is used for cell reselection, otherwise the first frequency priority is used for cell reselection ,
  • the second condition includes at least one of the following:
  • the terminal measures the eighteenth cell of the second network
  • the nineteenth cell of the second network measured by the terminal satisfies a preset cell quality condition.
  • the second condition further includes at least one of the following:
  • the terminal measures the twentieth cell of the second network, and the terminal supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-first cell of the second network, and the terminal supports dual connectivity of the first network and the second network, and supports a dual connectivity frequency band combination including the first frequency of the first cell;
  • the terminal measures the twenty-second cell of the second network, and the terminal supports the dual connection of the first network and the second network, and supports a dual-connection frequency band combination including the frequency of the first frequency and the frequency of the twenty-second cell;
  • the twenty-third cell of the second network measured by the terminal satisfies a preset cell quality condition, and the terminal supports dual connectivity of the first network and the second network;
  • the twenty-fourth cell of the second network measured by the terminal satisfies the preset cell quality condition, the terminal supports the dual connection of the first network and the second network, and supports the dual connection of the first frequency including the first cell Connection frequency band combination;
  • the twenty-fifth cell of the second network measured by the terminal satisfies a preset cell quality condition, the terminal supports dual connections between the first network and the second network, and the terminal supports the first frequency and the twenty-fifth cell.
  • the second condition further includes at least one of the following:
  • the terminal measures the twenty-sixth cell of the second network, and the first cell supports dual connectivity of the first network and the second network;
  • the terminal measures the twenty-seventh cell of the second network, the first cell supports the dual connection of the first network and the second network, and the twentieth cell supports the dual connection of the first network and the second network;
  • the twenty-eighth cell of the second network measured by the terminal satisfies a preset cell quality condition, and the first cell supports dual connectivity of the first network and the second network;
  • the twenty-ninth cell of the second network measured by the terminal satisfies a preset cell quality condition, the first cell supports dual connectivity between the first network and the second network, and the twenty-ninth cell supports the first network Dual connection with the second network.
  • the cell in the second network measured by the terminal is a cell in a preset second network cell list, or a cell in a second network cell list sent by a network device.
  • the preset cell quality conditions include at least one of the following:
  • the RSRP of the cell satisfies a preset threshold, and the preset threshold adopts a preset configured value or a value issued by a network device.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present disclosure.
  • the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the related 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
  • the instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the cell reselection method described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • each module is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated.
  • these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware.
  • the determination module may be a separately established processing element, or it may be integrated into a certain chip of the above-mentioned device to be implemented.
  • it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element Call and execute the functions of the above-identified module.
  • each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more application specific integrated circuits (ASIC), or, one or Multiple microprocessors (digital signal processors, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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

Abstract

La présente invention concerne un procédé et un dispositif de resélection de cellule. Le procédé comprend les étapes suivantes : un terminal reçoit une première priorité de fréquence et une seconde priorité de fréquence d'au moins une fréquence envoyée par un dispositif réseau; et le terminal utilise, en fonction d'un résultat de mesure de cellule, la première priorité de fréquence ou la seconde priorité de fréquence pour effectuer une resélection de cellule.
PCT/CN2020/108234 2019-08-26 2020-08-10 Procédé et dispositif de resélection de cellule Ceased WO2021036774A1 (fr)

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