WO2022037706A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2022037706A1
WO2022037706A1 PCT/CN2021/114158 CN2021114158W WO2022037706A1 WO 2022037706 A1 WO2022037706 A1 WO 2022037706A1 CN 2021114158 W CN2021114158 W CN 2021114158W WO 2022037706 A1 WO2022037706 A1 WO 2022037706A1
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WIPO (PCT)
Prior art keywords
cell
frequency
access
terminal device
determining
Prior art date
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PCT/CN2021/114158
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English (en)
French (fr)
Inventor
李秉肇
金哲
Original Assignee
华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21857793.0A priority Critical patent/EP4187976A4/en
Publication of WO2022037706A1 publication Critical patent/WO2022037706A1/zh
Priority to US18/172,145 priority patent/US20230199619A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0258—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity controlling an operation mode according to history or models of usage information, e.g. activity schedule or time of day
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method and apparatus.
  • the diversity of services is increasing day by day, including enhanced mobile broadband (eMBB) services, ultra-reliability low-latency communication (URLLC) services
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliability low-latency communication
  • mMTC massive machine-type communication
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliability low-latency communication
  • mMTC massive machine-type communication
  • the mMTC service requires higher power consumption of the terminal device.
  • the deployment environment of some machine-type terminal equipment is not convenient for adjustment of the power supply system. In this case, the machine-type terminal equipment is required to have lower power consumption to prolong the use time and meet business needs.
  • Mobility management is an important part of wireless mobile communication. It refers to the general term for the related operations involved in order to ensure that the communication link between the network and the terminal device is not interrupted due to the movement of the terminal device.
  • the mobility management can be roughly divided into two parts: radio resource control (RRC) idle state (RRC_idle state) mobility management and RRC connected state (RRC_connected state) mobility management.
  • RRC idle state the mobility management mainly refers to the process of cell selection/reselection
  • RRC connected state the mobility management mainly refers to the cell handover process. Whether it is cell selection/reselection or cell handover, it is performed based on the radio resource management (radio resource management, RRM) measurement results of the terminal equipment. Therefore, RRM measurement is the basis for mobility management.
  • RRM radio resource management
  • RRM measurement includes measuring the serving cell of the terminal equipment, and also includes measuring the neighboring cells (also referred to as neighboring cells) of the serving cell, for example, measuring the neighboring cells belonging to the same communication system as the serving cell, or measuring the neighboring cells belonging to the serving cell. Neighborhoods of different systems.
  • the measurement process of the serving cell by the terminal equipment is always carried out, and the measurement of the neighboring cell needs to be started only when certain conditions are met.
  • a neighboring cell measurement relaxation condition is also set for the neighboring cell measurement. When the neighboring cell measurement relaxation condition is satisfied, the terminal equipment may not perform the neighboring cell measurement. However, the neighbor cell relaxation measurement is only applicable to the terminal equipment in a stationary state, or the terminal equipment moving at a slow speed. If the terminal equipment moves, the neighbor cell measurement still needs to be performed.
  • Embodiments of the present application provide a communication method and apparatus, which are used to reduce energy consumption of a terminal device.
  • a first communication method comprising: camping on a first cell, in response to receiving a paging message from the first cell, or in response to determining uplink information to be transmitted, or in response to determining The transmitted non-multicast service is determined to access the second cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency.
  • the method may be performed by a first communication apparatus, and the first communication apparatus may be a communication apparatus or a communication apparatus, such as a chip, capable of supporting the functions required by the communication apparatus to implement the method.
  • the first communication apparatus is a terminal device, or a chip provided in the network device for implementing the function of the terminal device, or other components for implementing the function of the terminal device.
  • the first communication device is a terminal device.
  • the terminal device receives downlink transmission by camping in the first cell, and accesses the second cell when receiving a paging message, or when it needs to transmit uplink information, or when it needs to transmit non-multicast services , thereby reducing the overhead of RRM measurement and receiving system information in the first cell, saving power, and obtaining services in the first cell to ensure service transmission.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell can be deployed by using low-frequency beams, thereby realizing extensive coverage through a small number of beams, and further, when the terminal equipment resides in the first cell, the beam measurement overhead can be reduced, and the terminal equipment can be reduced. energy consumption of the device.
  • the first cell does not support uplink transmission, or the first cell only supports the transmission of multicast services.
  • the terminal device can only receive downlink transmission in the first cell, or only receive non-multicast services without access, so as to reduce the overhead of RRM measurement, and the communication system can use an access network device Realize wide coverage downlink transmission or multicast transmission, improve communication efficiency and reduce network deployment overhead.
  • the response is in response to receiving a paging message from the first cell, or in response to determining that uplink information to be transmitted, or in response to determining that there is a non-multiple information to be transmitted.
  • the broadcast service, determining to access the second cell includes: in response to determining the uplink information to be transmitted and determining that the first cell does not support uplink transmission, determining to access the second cell, or in response to determining the uplink information to be transmitted and determining
  • the uplink information to be transmitted is a data service, it is determined to access the second cell, or in response to determining that there is a non-multicast service to be transmitted and it is determined that the first cell only supports the transmission of multicast services, determining to access Second district.
  • the network device can indicate whether the terminal device is accessing in the first cell through indication information, and the indication information can be carried in the paging message; when the first cell does not support downlink transmission, the terminal device is in the first cell.
  • the terminal device determines to access the second cell when it needs to transmit non-multicast services.
  • the terminal device can determine whether to access in the first cell according to the network load and service requirements, so as to ensure the normal operation of the service.
  • the reference signal of the first cell is measured, and when the measurement result is less than a first threshold, it is determined to access the second cell.
  • the terminal device when the terminal device needs to access, it can determine whether to access the first cell according to the reference signal quality of the first cell.
  • the first cell performs access, and the first access network device is an access network device corresponding to the first cell.
  • the terminal device receives indication information from a network device, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell cell, or instructing to select a cell for access according to the second frequency, or instructing that the frequency priority of the first frequency is the lowest priority.
  • the network device can use the indication information to indicate whether the terminal device accesses the first cell, or can use the indication information from the designated cell or frequency to which the terminal device accesses, so as to realize dynamic regulation according to the network load and improve the The resource utilization of the communication system.
  • the terminal device performs cell selection according to the second frequency, selects to access the second cell, or lowers the frequency priority of the first frequency to A frequency priority lower than the second frequency triggers measurement of a cell whose frequency is the second frequency, and reselection to the second cell.
  • the terminal device can adjust the priority of the cell according to the frequency priority, or the terminal device can determine the cell to access through cell selection or cell reselection.
  • a serving cell of the terminal device is a third cell, and a frequency of the third cell is different from the first frequency.
  • the terminal device changes the serving cell to the first cell through cell selection, cell reselection or handover.
  • the serving cell when the terminal device determines that access is not required, the serving cell can be replaced with the first cell through cell selection, cell reselection or handover, thereby realizing power saving.
  • the terminal device receives a first message from a network device, where the first message is used to indicate the frequency priority of the first frequency, or the first message A message is used to indicate that the first frequency is an energy saving mode frequency.
  • the first frequency is measured and the serving cell is changed to the first cell.
  • the network device can indicate the priority of the first cell of the terminal device through the first message, so that the terminal device can change the serving cell to the first cell in time, so that the terminal device can reduce the measurement overhead, and the communication system can Balance the load.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • the network device can simultaneously indicate the priority of the first cell of multiple terminal devices or the first frequency is the frequency in the energy saving mode by broadcasting a message, saving signaling, or the network device can indicate for a single terminal device
  • the priority of the first cell or the first frequency is the frequency of the energy saving mode, which realizes flexible scheduling.
  • the service activity level of the terminal device, the power of the terminal device and the access delay of the terminal device At least one of the replacement serving cells is determined to be the first cell.
  • the terminal device can determine whether to enter the first cell to save power according to its own energy saving requirements and service requirements.
  • a second communication method comprising: determining indication information, where the indication information is used to instruct to access the second cell, or instruct not to access the first cell, or instruct to select a cell according to the second frequency access, or indicate that the frequency priority of the first frequency is the lowest priority.
  • the indication information is sent to the terminal device through the first cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency
  • the first cell is the cell of the first access network device
  • the second cell is the cell of the second access network device.
  • the method may be performed by a second communication apparatus, and the second communication apparatus may be a communication apparatus or a communication apparatus, such as a chip, capable of supporting the functions required by the communication apparatus to implement the method.
  • the second communication device is a network device, such as an access network device, or a chip provided in the network device for implementing the function of the network device, or other components for implementing the function of the network device.
  • the second communication apparatus is a network device.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell can be deployed by using low-frequency beams, thereby realizing extensive coverage through a small number of beams, and further, when the terminal equipment resides in the first cell, the beam measurement overhead can be reduced, and the terminal equipment can be reduced. energy consumption of the device.
  • the first cell does not support uplink transmission, or the first cell only supports the transmission of multicast services.
  • the terminal device can only receive downlink transmission in the first cell, or only receive non-multicast services without access, so as to reduce the overhead of RRM measurement, and the communication system can use an access network device Realize wide coverage downlink transmission or multicast transmission, improve communication efficiency and reduce network deployment overhead.
  • the indication information is carried in a paging message.
  • a first message is sent to the terminal device, where the first message is used to indicate the frequency priority of the first frequency, or the first The message is used to indicate that the first frequency is an energy saving mode frequency.
  • the network device can indicate the priority of the first cell of the terminal device through the first message, so that the terminal device can change the serving cell to the first cell in time, so that the terminal device can reduce the measurement overhead, and the communication system can Balance the load.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • the network device can simultaneously indicate the priority of the first cell of multiple terminal devices or the first frequency is the frequency in the energy saving mode by broadcasting a message, saving signaling, or the network device can indicate for a single terminal device
  • the priority of the first cell or the first frequency is the frequency of the energy saving mode, which realizes flexible scheduling.
  • a third communication method comprising: camping on a first cell, and determining to access a second cell in response to determining the non-multicast service to be transmitted.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency.
  • the method may be performed by a third communication apparatus, and the third communication apparatus may be a communication apparatus or a communication apparatus, such as a chip, capable of supporting the functions required by the communication apparatus to implement the method.
  • the third communication apparatus is a terminal device, or a chip provided in the terminal device for implementing the function of the terminal device, or other components for implementing the function of the terminal device.
  • the third communication apparatus is a terminal device.
  • the terminal device can only receive multicast services in the first cell, and determine to access the second cell when it needs to transmit non-multicast services, so as to save power in the first cell, and from the second cell Get other business.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell can be deployed by using low-frequency beams, thereby realizing extensive coverage through a small number of beams, and further, when the terminal equipment resides in the first cell, the beam measurement overhead can be reduced, and the terminal equipment can be reduced. energy consumption of the device.
  • the first cell only supports the transmission of multicast services.
  • the terminal device can only receive non-multicast services in the first cell without performing access, so as to reduce the overhead of RRM measurement, and the communication system can implement multicast with wide coverage through one access network device transmission, improve communication efficiency, and reduce network deployment overhead.
  • the determining to access the second cell in response to determining the non-multicast service to be transmitted comprises: in response to determining the non-multicast service to be transmitted and determining the non-multicast service to be transmitted When the first cell only supports transmission of multicast services, it is determined to access the second cell.
  • the reference signal of the first cell is measured, and when the measurement result is less than a first threshold, it is determined to access the second cell.
  • the terminal device when the terminal device needs to access, it can determine whether to access the first cell according to the reference signal quality of the first cell.
  • the first cell performs access, and the first access network device is an access network device corresponding to the first cell.
  • the terminal device receives indication information from a network device, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell cell, or instructing to select a cell for access according to the second frequency, or instructing that the frequency priority of the first frequency is the lowest priority.
  • the network device can use the indication information to indicate whether the terminal device accesses the first cell, or can use the indication information from the designated cell or frequency to which the terminal device accesses, so as to realize dynamic regulation according to the network load and improve the The resource utilization of the communication system.
  • the terminal device performs cell selection according to the second frequency, selects to access the second cell, or lowers the frequency priority of the first frequency to A frequency priority lower than the second frequency triggers measurement of a cell whose frequency is the second frequency, and reselection to the second cell.
  • the terminal device can adjust the priority of the cell according to the frequency priority, or the terminal device can determine the cell to access through cell selection or cell reselection.
  • a serving cell of the terminal device is a third cell, and a frequency of the third cell is different from the first frequency.
  • the terminal device changes the serving cell to the first cell through cell selection, cell reselection or handover.
  • the serving cell when the terminal device determines that access is not required, the serving cell can be replaced with the first cell through cell selection, cell reselection or handover, thereby realizing power saving.
  • the terminal device receives a first message from a network device, where the first message is used to indicate the frequency priority of the first frequency, or the first message A message is used to indicate that the first frequency is an energy saving mode frequency.
  • the first frequency is measured and the serving cell is changed to the first cell.
  • the network device can indicate the priority of the first cell of the terminal device through the first message, so that the terminal device can change the serving cell to the first cell in time, so that the terminal device can reduce the measurement overhead, and the communication system can Balance the load.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • the network device can simultaneously indicate the priority of the first cell of multiple terminal devices or the first frequency is the frequency in the energy saving mode by broadcasting a message, saving signaling, or the network device can indicate for a single terminal device
  • the priority of the first cell or the first frequency is the frequency of the energy saving mode, which realizes flexible scheduling.
  • a fourth communication method comprising: determining indication information, where the indication information is used to instruct access to the second cell, or instruct not to access the first cell, or instruct to select a cell according to the second frequency access, or indicate that the frequency priority of the first frequency is the lowest priority.
  • the indication information is sent to the terminal device through the first cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency
  • the first cell is the cell of the first access network device
  • the second cell is the cell of the second access network device.
  • the method may be performed by a fourth communication apparatus, and the fourth communication apparatus may be a communication apparatus or a communication apparatus, such as a chip, capable of supporting the functions required by the communication apparatus to implement the method.
  • the fourth communication apparatus is a network device, or a chip provided in the network device for implementing the function of the network device, or other components for implementing the function of the network device.
  • the fourth communication apparatus is a network device.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell can be deployed by using low-frequency beams, thereby realizing extensive coverage through a small number of beams, and further, when the terminal equipment resides in the first cell, the beam measurement overhead can be reduced, and the terminal equipment can be reduced. energy consumption of the device.
  • the first cell only supports the transmission of multicast services.
  • the terminal device can only receive non-multicast services in the first cell, so as to reduce the overhead of RRM measurement, and the communication system can implement wide-coverage downlink transmission or multicast transmission through one access network device, thereby improving the Communication efficiency, reducing network deployment overhead.
  • the indication information is carried in a paging message.
  • a first message is sent to the terminal device, where the first message is used to indicate the frequency priority of the first frequency, or the first The message is used to indicate that the first frequency is an energy saving mode frequency.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • a communication device is provided.
  • the communication device is the aforementioned first communication device.
  • the first communication apparatus is configured to execute the method in the above first aspect or any possible implementation manner.
  • the first communication apparatus may include a module for executing the method in the first aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module, and the sending module and the receiving module may be different functional modules, or may be the same functional module, but can implement different functions.
  • the first communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the first communication device is a terminal device.
  • the transceiver module can also be implemented by a transceiver, and the processing module can also be implemented by a processor.
  • the sending module can be implemented by a transmitter
  • the receiving module can be implemented by a receiver
  • the transmitter and the receiver can be different functional modules, or can be the same functional module but can implement different functions.
  • the transceiver is implemented by, for example, an antenna, a feeder, a codec and the like in the communication device.
  • the transceiver (or the transmitter and the receiver) is, for example, a communication interface in the chip, and the communication interface is connected with the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • the processing module is configured to determine to camp on the first cell.
  • the processing module In response to receiving a paging message from the first cell, or in response to determining uplink information to be transmitted, or in response to determining non-multicast traffic to be transmitted, the processing module is further configured to determine access to the second cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell does not support uplink transmission, or the first cell only supports the transmission of multicast services.
  • the determining to access the second cell includes: in response to determining the uplink information to be transmitted and determining that the first cell does not support uplink transmission, the processing module determining to access the second cell or in response to determining the uplink information to be transmitted and determining that the uplink information to be transmitted is a data service, the processing module determines to access the second cell, or in response to determining the non-multicast service to be transmitted and When it is determined that the first cell only supports transmission of multicast services, the processing module determines to access the second cell.
  • the processing module is further configured to measure the reference signal of the first cell, and when the measurement result is less than a first threshold, determine to access the second cell.
  • the transceiver module is configured to receive indication information from a network device, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell, Or instruct to select a cell for access according to the second frequency, or instruct that the frequency priority of the first frequency is the lowest priority.
  • the processing module is further configured to perform cell selection according to the second frequency, select to access the second cell, or reduce the frequency priority of the first frequency to a low level According to the frequency priority of the second frequency, the cell whose frequency is the second frequency is triggered to measure and reselect to the second cell.
  • the serving cell of the terminal device is a third cell, and the frequency of the third cell is different from the first frequency, and the processing module is configured to perform cell selection and cell reselection through cell selection and cell reselection. Or switch, and replace the serving cell with the first cell.
  • the transceiver module is further configured to receive a first message from a network device, where the first message is used to indicate the frequency priority of the first frequency, or the first message The message is used to indicate that the first frequency is an energy saving mode frequency.
  • the processing module is further configured to measure the first frequency and change the serving cell to the first cell.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • the processing module is further configured to, according to the energy saving mode of the terminal device, the service activity level of the terminal device, the power of the terminal device and the access time of the terminal device At least one of the delays determines to replace the serving cell as the first cell.
  • a communication device is provided, for example, the communication device is the aforementioned second communication device.
  • the second communication device is configured to execute the method in the second aspect or any possible implementation manner.
  • the second communication apparatus may include a module for executing the method in the second aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module, and the sending module and the receiving module may be different functional modules, or may be the same functional module, but can implement different functions.
  • the second communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the second communication apparatus is a network device.
  • the transceiver module can also be implemented by a transceiver, and the processing module can also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver
  • the transmitter and the receiver may be different functional modules, or may be the same functional module but capable of implementing different functions.
  • the transceiver is implemented by, for example, an antenna, a feeder, a codec and the like in the communication device.
  • the transceiver (or the transmitter and the receiver) is, for example, a communication interface in the chip, and the communication interface is connected with the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • the introduction process of the sixth aspect continue to take the second communication device as a terminal device, and take the processing module and the transceiver module as examples for introduction. in,
  • the processing module is configured to determine indication information, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell, or to instruct to select a cell for access according to the second frequency, or to instruct the first frequency
  • the frequency priority is the lowest priority.
  • the transceiver module is configured to send the indication information to the terminal device through the first cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency
  • the first cell is the cell of the first access network device
  • the second cell is the cell of the second access network device.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell does not support uplink transmission, or the first cell only supports the transmission of multicast services.
  • the indication information is carried in a paging message.
  • the transceiver module is further configured to send a first message to the terminal device, where the first message is used to indicate the frequency priority of the first frequency, or the The first message is used to indicate that the first frequency is an energy saving mode frequency.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • a communication device is provided, for example, the communication device is the aforementioned third communication device.
  • the third communication apparatus is configured to execute the method in the third aspect or any possible implementation manner.
  • the third communication apparatus may include a module for executing the method in the third aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module, and the sending module and the receiving module may be different functional modules, or may be the same functional module, but can implement different functions.
  • the third communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the third communication apparatus is a terminal device as an example.
  • the transceiver module can also be implemented by a transceiver, and the processing module can also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver
  • the transmitter and the receiver may be different functional modules, or may be the same functional module but capable of implementing different functions.
  • the transceiver is implemented by, for example, an antenna, a feeder, a codec and the like in the communication device.
  • the third communication device is a chip provided in the communication device
  • the transceiver (or the transmitter and the receiver) is, for example, a communication interface in the chip, and the communication interface is connected with the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • the third communication apparatus is continued to be a terminal device, and the processing module and the transceiver module are used as examples for introduction. in,
  • the processing module is configured to determine to camp on the first cell.
  • the processing module In response to determining that non-multicast traffic is to be transmitted, the processing module also determines to access the second cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell only supports the transmission of multicast services.
  • the processing module determines to access the second cell in response to determining the non-multicast service to be transmitted and determining that the first cell only supports transmission of the multicast service.
  • the transceiver module measures the reference signal of the first cell, and when the measurement result is less than a first threshold, the processing module determines to access the second cell.
  • the transceiver module is configured to receive indication information from a network device, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell, Or instruct to select a cell for access according to the second frequency, or instruct that the frequency priority of the first frequency is the lowest priority.
  • the transceiver module is configured to perform cell selection according to the second frequency, select to access the second cell, or reduce the frequency priority of the first frequency to a value lower than The frequency priority of the second frequency triggers the measurement of a cell whose frequency is the second frequency and reselection to the second cell.
  • the serving cell of the terminal device is a third cell, and the frequency of the third cell is different from the first frequency.
  • the transceiver module is configured to change the serving cell to the first cell through cell selection, cell reselection or handover.
  • the transceiver module is configured to receive a first message from a network device, where the first message is used to indicate a frequency priority of the first frequency, or the first message It is used to indicate that the first frequency is an energy saving mode frequency.
  • the first frequency is measured and the serving cell is changed to the first cell.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • a communication device is provided, for example, the communication device is the aforementioned fourth communication device.
  • the fourth communication apparatus is configured to execute the method in the above fourth aspect or any possible implementation manner.
  • the fourth communication apparatus may include a module for executing the method in the fourth aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module, and the sending module and the receiving module may be different functional modules, or may be the same functional module, but can implement different functions.
  • the fourth communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the fourth communication apparatus is a network device.
  • the transceiver module can also be implemented by a transceiver, and the processing module can also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver
  • the transmitter and the receiver may be different functional modules, or may be the same functional module but capable of implementing different functions.
  • the transceiver is implemented by, for example, an antenna, a feeder, a codec and the like in the communication device.
  • the fourth communication device is a chip provided in the communication device
  • the transceiver (or the transmitter and the receiver) is, for example, a communication interface in the chip, and the communication interface is connected with the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • the fourth communication apparatus is continued to be a terminal device, and the processing module and the transceiver module are used as examples for introduction. in,
  • the processing module is configured to determine indication information, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell, or to instruct to select a cell for access according to the second frequency, or to instruct the first frequency
  • the frequency priority is the lowest priority.
  • the transceiver module is configured to send the indication information to the terminal device through the first cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency
  • the first cell is the cell of the first access network device
  • the second cell is the cell of the second access network device.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell only supports the transmission of multicast services.
  • the indication information is carried in a paging message.
  • the transceiver module is further configured to send a first message to the terminal device, where the first message is used to indicate the frequency priority of the first frequency, or the first message A message is used to indicate that the first frequency is an energy saving mode frequency.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • a communication device is provided, and the communication device is, for example, the aforementioned first communication device.
  • the communication device includes a processor.
  • a memory may also be included for storing computer instructions.
  • the processor and the memory are coupled to each other for implementing the method described in the first aspect or various possible implementation manners.
  • the first communication device may not include the memory, and the memory may be located outside the first communication device.
  • the first communication apparatus may further include a communication interface for communicating with other apparatuses or devices.
  • the processor, the memory and the communication interface are coupled to each other, and are used for implementing the method described in the first aspect or various possible implementation manners.
  • the first communication device when the processor executes the computer instructions stored in the memory, the first communication device is caused to execute the method in the first aspect or any one of the possible implementation manners.
  • the first communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the communication interface is realized by, for example, a transceiver (or a transmitter and a receiver) in the communication device, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codecs, etc. are implemented.
  • the communication interface is, for example, an input/output interface of the chip, such as input/output pins, etc., and the communication interface is connected with the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • a communication device is provided, for example, the communication device is the aforementioned second communication device.
  • the communication device includes a processor.
  • a memory may also be included for storing computer instructions.
  • the processor and the memory are coupled to each other for implementing the method described in the second aspect or various possible implementation manners.
  • the second communication device may not include the memory, and the memory may be located outside the second communication device.
  • the second communication apparatus may further include a communication interface for communicating with other apparatuses or devices.
  • the processor, the memory and the communication interface are coupled to each other, and are used for implementing the method described in the second aspect or various possible implementation manners.
  • the second communication device when the processor executes the computer instructions stored in the memory, the second communication device is caused to perform the method in the second aspect or any one of the possible implementation manners.
  • the second communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the communication interface is realized by, for example, a transceiver (or a transmitter and a receiver) in the communication device, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codecs, etc. are implemented.
  • the communication interface is, for example, an input/output interface of the chip, such as input/output pins, etc., and the communication interface is connected to the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • a communication device is provided, and the communication device is, for example, the aforementioned third communication device.
  • the communication device includes a processor.
  • a memory may also be included for storing computer instructions.
  • the processor and the memory are coupled to each other for implementing the method described in the third aspect or various possible implementation manners.
  • the third communication device may not include the memory, and the memory may be located outside the third communication device.
  • the third communication apparatus may further include a communication interface for communicating with other apparatuses or devices.
  • the processor, the memory and the communication interface are coupled to each other, and are used to implement the method described in the third aspect or various possible implementation manners.
  • the third communication apparatus when the processor executes the computer instructions stored in the memory, the third communication apparatus is caused to perform the method in the above third aspect or any one of the possible implementation manners.
  • the third communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the communication interface is realized by, for example, a transceiver (or a transmitter and a receiver) in the communication device, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codecs, etc. are implemented.
  • the communication interface is, for example, an input/output interface of the chip, such as input/output pins, etc., and the communication interface is connected with the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • a communication device is provided, for example, the communication device is the aforementioned fourth communication device.
  • the communication device includes a processor.
  • a memory may also be included for storing computer instructions.
  • the processor and the memory are coupled to each other for implementing the method described in the fourth aspect or various possible implementation manners.
  • the fourth communication device may not include the memory, and the memory may be located outside the fourth communication device.
  • the fourth communication apparatus may further include a communication interface for communicating with other apparatuses or devices.
  • the processor, the memory and the communication interface are coupled to each other, and are used to implement the method described in the fourth aspect or various possible implementation manners.
  • the fourth communication apparatus when the processor executes the computer instructions stored in the memory, the fourth communication apparatus is caused to perform the method in the above fourth aspect or any one of the possible implementation manners.
  • the fourth communication apparatus is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the communication interface is realized by, for example, a transceiver (or a transmitter and a receiver) in the communication device, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codecs, etc. are implemented.
  • the fourth communication device is a chip provided in the communication device, the communication interface is, for example, an input/output interface of the chip, such as input/output pins, etc., and the communication interface is connected to the radio frequency transceiver component in the communication device to Send and receive information through radio frequency transceiver components.
  • a thirteenth aspect provides a chip system, the chip system includes a processor and a communication interface, the processor is coupled to the communication interface, and is configured to implement the above-mentioned first aspect or any of the optional implementation manners. provided method.
  • the chip system may further include a memory, for example, the processor may read and execute a software program stored in the memory, so as to implement the above-mentioned first aspect or any of the optional implementation manners.
  • the memory may not be included in the chip system, but is located outside the chip system, which is equivalent to that the processor may read and execute the software program stored in the external memory, so as to realize the above-mentioned first A method provided by an aspect or any alternative embodiment.
  • a fourteenth aspect provides a chip system, the chip system includes a processor and a communication interface, the processor is coupled to the communication interface, and is configured to implement the second aspect or any of the optional implementation manners. provided method.
  • the chip system may further include a memory, for example, the processor may read and execute a software program stored in the memory, so as to implement the second aspect or any of the optional implementation manners.
  • the memory may not be included in the chip system, but is located outside the chip system, which is equivalent to that the processor may read and execute the software program stored in the external memory, so as to realize the above-mentioned second A method provided by an aspect or any alternative embodiment.
  • a fifteenth aspect provides a chip system, the chip system includes a processor and a communication interface, the processor is coupled to the communication interface, and is configured to implement the third aspect or any of the optional implementation manners. provided method.
  • the chip system may further include a memory, for example, the processor may read and execute a software program stored in the memory, so as to implement the third aspect or any of the optional implementation manners.
  • the memory may not be included in the chip system, but is located outside the chip system, which is equivalent to that the processor can read and execute the software program stored in the external memory, so as to realize the third A method provided by an aspect or any alternative embodiment.
  • a sixteenth aspect provides a chip system, the chip system includes a processor and a communication interface, the processor is coupled to the communication interface, and is configured to implement the fourth aspect or any of the optional implementation manners. provided method.
  • the chip system may further include a memory, for example, the processor may read and execute a software program stored in the memory, so as to implement the above fourth aspect or any of the optional implementation manners.
  • the memory may not be included in the chip system, but is located outside the chip system, which is equivalent to that the processor may read and execute the software program stored in the external memory, so as to realize the above fourth A method provided by an aspect or any alternative embodiment.
  • a seventeenth aspect provides a first communication system, the communication system comprising the communication device of the fifth aspect, the communication device of the ninth aspect, or the communication device of the thirteenth aspect, and the communication device of the sixth aspect The communication device, the communication device of the tenth aspect, or the communication device of the fourteenth aspect.
  • An eighteenth aspect provides a second communication system, the communication system comprising the communication device of the seventh aspect, the communication device of the eleventh aspect, or the communication device of the fifteenth aspect, and the communication device of the eighth aspect
  • a nineteenth aspect provides a computer-readable storage medium, where the computer-readable storage medium is used to store computer instructions, which, when the computer instructions are executed on a computer, cause the computer to execute the first aspect or any one of the above method described in a possible embodiment.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used for storing computer instructions, and when the computer instructions are executed on a computer, the computer is made to execute the second aspect or any one of the above method described in a possible embodiment.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used for storing computer instructions, and when the computer instructions are executed on a computer, the computer is made to execute the third aspect or any of the above The method described in a possible embodiment.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used for storing computer instructions, and when the computer instructions are executed on a computer, the computer is made to execute the fourth aspect or any of the above The method described in a possible embodiment.
  • a twenty-third aspect provides a computer program product comprising instructions, the computer program product being used to store computer instructions, which, when the computer instructions are executed on a computer, cause the computer to execute the first aspect or any of the above The method described in a possible embodiment.
  • a twenty-fourth aspect provides a computer program product comprising instructions, the computer program product being used to store computer instructions, which, when the computer instructions are executed on a computer, cause the computer to execute any of the above-mentioned second aspect or The method described in a possible embodiment.
  • a twenty-fifth aspect provides a computer program product comprising instructions, the computer program product being used to store computer instructions, which, when the computer instructions are executed on a computer, cause the computer to execute the third aspect or any of the above The method described in a possible embodiment.
  • a twenty-sixth aspect provides a computer program product comprising instructions, the computer program product is used to store computer instructions, and when the computer instructions are executed on a computer, the computer is made to execute the fourth aspect or any of the above The method described in a possible embodiment.
  • a twenty-seventh aspect provides a communication method, a corresponding communication device, and a communication system.
  • the terminal device resides on the first frequency, receives access information corresponding to the second frequency through the first frequency, and further accesses the second frequency according to the access information.
  • the terminal device can reside on the first frequency in the RRC idle state, and receive downlink information through the first frequency, thereby saving the consumption of RRM measurement.
  • the terminal device needs to perform service transmission, it can access the second frequency.
  • a communication service is obtained, wherein the first frequency is different from the second frequency.
  • the terminal device sends a probe signal to the second access network device.
  • the sounding signal is a specific code sequence or a reference signal.
  • the second access network device can determine the location of the terminal device, and then determine the access assistance information required by the terminal device to access the second frequency.
  • the access information received by the terminal device through the first frequency includes at least one second cell configuration information
  • the second cell configuration information includes at least one of the following: the second cell identification information, such as physical cell identifier (PCI) or cell identifier (cell indentifer, CI), the frequency point information of the second frequency, the configuration information of the reference signal of the second cell, the The access resource information of the second cell, the system information of the second cell, and the measurement result of the sounding signal.
  • the second cell identification information such as physical cell identifier (PCI) or cell identifier (cell indentifer, CI)
  • PCI physical cell identifier
  • CI cell indentifer
  • the access information includes identification information of the second cell, and the terminal device obtains the random access configuration information by reading SIB1 after obtaining the cell timing according to the SSB or CSI-RS, Then perform random access according to the random access configuration information.
  • the access information includes scheduling configuration information of SIB1, and the terminal may determine the scheduling of SIB1 according to the scheduling configuration information of SIB1 in the access resource information, and receive SIB1 according to the scheduling.
  • the access information includes configuration information of random access resources and an ID of the second cell, wherein the configuration information of random access resources includes access timing of the random access resources At least one of configuration, frequency configuration, and preamble configuration.
  • the access information includes authorization information of the third message (Msg3) of the second cell
  • the terminal device can send the Msg3 to the base station according to the authorization information of the Msg3, without needing to The second cell initiates a complete random access procedure, thereby improving communication efficiency.
  • the terminal device may include a preferred beam identifier in Msg3 to request the access network device to schedule the terminal device according to the beam identifier.
  • a twenty-eighth aspect provides a communication method, a corresponding communication device, and a communication system.
  • the second access network device receives the probe signal from the terminal device, and determines the access assistance information corresponding to the terminal device, and further, the second access network device sends the access assistance information to the first access network device .
  • the second access network device can determine the location of the terminal device by detecting the probe signal from the terminal device, and then send the access assistance information corresponding to the second frequency to the terminal device through the first frequency, so as to improve the connection of the terminal device. efficiency into the second frequency.
  • the first access network device and the second access network device may be the same device, and in this case, message sending between the two access network devices does not need to be performed.
  • the access assistance information includes at least one second cell configuration information
  • the second cell configuration information includes at least one of the following: identification information of the second cell, such as a physical cell Identifier (physical cell identifier, PCI) or cell identifier (cell indentifer, CI), frequency point information of the second frequency, configuration information of the reference signal of the second cell, access resource information of the second cell , the system information of the second cell, and the measurement result of the sounding signal.
  • identification information of the second cell such as a physical cell Identifier (physical cell identifier, PCI) or cell identifier (cell indentifer, CI), frequency point information of the second frequency, configuration information of the reference signal of the second cell, access resource information of the second cell , the system information of the second cell, and the measurement result of the sounding signal.
  • PCI physical cell Identifier
  • cell CI cell indentifer
  • a twenty-ninth aspect provides a communication method, a corresponding communication device, and a communication system.
  • the first access network device receives access assistance information from the second access network device, where the access assistance information is used by the terminal device to access the second frequency, and the first access network device receives the access assistance information according to the access assistance information.
  • the information determines access information, and sends the access information to the terminal device through the first frequency.
  • the first access network device can send the access information corresponding to the second frequency to the terminal device through the first frequency, which saves the time delay and consumption of the terminal device receiving broadcast messages or performing cell selection and cell reselection. Improve communication efficiency.
  • the first access network device and the second access network device may be the same device, and in this case, message sending between the two access network devices does not need to be performed.
  • the first access network device receives access assistance information from multiple second access network devices, and further, the first access network device receives access assistance information from multiple second access network devices At least one second access network device is selected, and access information is determined according to access assistance information corresponding to the selected second access network device.
  • the access assistance information includes a measurement result of the probe signal by the second access network device, and the measurement result is used to characterize the quality of the probe signal received by the second access network device, then the first access network device The device can select a second access network device with high communication quality with the terminal device according to the measurement result, improve the communication quality after the terminal device accesses the second frequency, and save the terminal device's ability to perform cell reselection. consumption.
  • a thirtieth aspect provides a communication device.
  • the communication device may be the terminal device described in the twenty-seventh aspect above, or an electronic device configured in the terminal device, or a larger device including the terminal device.
  • the terminal device includes corresponding means or modules for performing the above method.
  • the communication device includes a processing unit (sometimes also referred to as a processing module) and a transceiving unit (sometimes also referred to as a transceiving module).
  • the processing unit is configured to reside on the first frequency through the transceiver unit, the transceiver unit is configured to receive access information corresponding to the second frequency through the first frequency, and the processing unit is further configured to use the first frequency to receive access information corresponding to the second frequency.
  • the transceiver unit is connected to the second frequency.
  • the communication apparatus includes: a processor, coupled to the memory, for executing instructions in the memory, so as to implement the method performed by the terminal device in the twenty-seventh aspect above.
  • the communication device further includes other components, such as an antenna, an input and output module, an interface, and the like. These components may be hardware, software, or a combination of software and hardware.
  • a thirty-first aspect provides a communication device.
  • the communication apparatus may be the first access network device and/or the second access network device described in the twenty-eighth aspect or the twenty-ninth aspect.
  • the communication apparatus has the function of the first access network device, the function of the second access network device, or the functions of the first access network device and the second access network device.
  • the first access network device and/or the second access network device for example, a base station, or a baseband device in a base station.
  • the communication device includes a baseband device and a radio frequency device.
  • the communication apparatus includes a processing unit (sometimes also called a processing module) and a transceiver unit (sometimes also called a transceiver module).
  • the communication apparatus includes a processing unit, which is configured to be coupled to the storage unit and execute a program or instruction in the storage unit to enable the communication apparatus to execute the above-mentioned first access network device. function, and/or function of the second access network device.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store a computer program or instruction, which, when executed, enables the terminal device or the first access network in the above aspects The device, or the method performed by the second access network device is implemented.
  • a computer program product comprising instructions which, when run on a computer, cause the methods of the above aspects to be implemented.
  • the terminal equipment by performing only downlink transmission or only transmission of non-multicast services in the first cell, the terminal equipment can save the overhead of performing RRM measurement and receiving system information, thereby realizing power saving.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application
  • FIG. 2 is a schematic diagram of another application scenario of an embodiment of the present application.
  • FIG. 3 is a schematic diagram of entering and exiting the first frequency layer in an embodiment of the present application.
  • FIG. 4 is a flowchart of a first communication method provided by an embodiment of the present application.
  • FIG. 5 is another flowchart of the first communication method provided by the embodiment of the present application.
  • FIG. 6 is a flowchart of a second communication method provided by an embodiment of the present application.
  • FIG. 7 is another flowchart of a second communication method provided by an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a first terminal device provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a first network device provided by an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 is another schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 12 is still another schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 13 is another schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • 14A is a flowchart of a third communication method provided by an embodiment of the present application.
  • FIG. 14B is another flowchart of a third communication method provided by an embodiment of the present application.
  • Terminal devices including devices that provide users with voice and/or data connectivity, specifically, include devices that provide users with voice, or include devices that provide users with data connectivity, or include devices that provide users with voice and data connectivity sexual equipment.
  • it may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem.
  • the terminal equipment can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • RAN radio access network
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, vehicle to everything (V2X) terminal equipment , machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscription unit (subscriber unit), subscription station (subscriber) station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user Agent (user agent), or user equipment (user device), etc.
  • UE user equipment
  • D2D device-to-device
  • V2X vehicle to everything
  • M2M/MTC machine-to-machine/machine-type communications
  • IoT Internet of things
  • subscription unit subscriber unit
  • subscription station subscriber
  • mobile station mobile station
  • remote station remote station
  • access point access point
  • AP remote terminal
  • remote terminal remote terminal
  • access terminal
  • these may include mobile telephones (or "cellular" telephones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, computer-embedded mobile devices, and the like.
  • mobile telephones or "cellular" telephones
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • constrained devices such as devices with lower power consumption, or devices with limited storage capacity, or devices with limited computing power, etc.
  • it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners.
  • RFID radio frequency identification
  • GPS global positioning system
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. Wait.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as on-board terminal equipment.
  • the on-board terminal equipment is also called on-board unit (OBU). ).
  • the terminal device may further include a relay (relay).
  • a relay relay
  • any device capable of data communication with the base station can be regarded as a terminal device.
  • the apparatus for implementing the function of the terminal device may be the terminal device, or may be an apparatus capable of supporting the terminal device to implement the function, such as a chip system, and the apparatus may be installed in the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • Network equipment including, for example, access network (AN) equipment, such as a base station (for example, an access point), which may refer to a device in the access network that communicates with wireless terminal equipment over the air interface through one or more cells , or, for example, a network device in a vehicle-to-everything (V2X) technology is a roadside unit (RSU).
  • the base station may be used to interconvert the received air frames and IP packets, acting as a router between the terminal equipment and the rest of the access network, which may include the IP network.
  • the RSU can be a fixed infrastructure entity supporting V2X applications and can exchange messages with other entities supporting V2X applications.
  • the network device can also coordinate the attribute management of the air interface.
  • the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in the LTE system or long term evolution-advanced (LTE-A), or may also include fifth generation mobile
  • NodeB or eNB or e-NodeB, evolutional Node B in the LTE system or long term evolution-advanced (LTE-A)
  • LTE-A long term evolution-advanced
  • the next generation node B (gNB) in the communication technology (the 5th generation, 5G) NR system (also referred to as the NR system) may also include a cloud radio access network (Cloud RAN) system
  • a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) in the embodiments of the present application are not limited.
  • the network equipment may also include core network equipment, and the core network equipment includes, for example, an access and mobility management function (AMF) or a user plane function (UPF), and the like. Since the embodiments of the present application mainly relate to the access network, in the following description, unless otherwise specified, the network equipment refers to the access network equipment.
  • AMF access and mobility management function
  • UPF user plane function
  • the device for implementing the function of the network device may be a network device, or may be a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device.
  • the technical solutions provided by the embodiments of the present application are described by taking the device for realizing the function of the network device being a network device as an example.
  • the terminal equipment has three RRC states: RRC connected state, RRC idle state and RRC inactive state.
  • RRC connected state (or, it can also be referred to as connected state.
  • connected state and “RRC connected state” are the same concept, and the two terms can be interchanged): the terminal device and the network establish an RRC connection for data transfer.
  • RRC idle state (or, it can also be referred to as idle state.
  • idle state and “RRC idle state” are the same concept, and the two terms can be interchanged): the terminal device does not establish RRC with the network connection, the base station does not store the context of the terminal device. If the terminal device needs to enter the RRC connected state from the RRC idle state, it needs to initiate the RRC connection establishment process.
  • RRC inactive state (or, may also be referred to simply as inactive state.
  • inactive state “deactivated state”, “inactive state”, “RRC inactive state” or “RRC deactivated state” etc., are the same concept, and these terms can be interchanged): the terminal device entered the RRC connection state at the anchor base station before, and then the anchor base station released the RRC connection, but the anchor base station saved the context of the terminal device. If the terminal device needs to enter the RRC connected state again from the RRC inactive state, it needs to initiate an RRC connection recovery process (or referred to as an RRC connection re-establishment process) at the currently residing base station.
  • RRC connection recovery process or referred to as an RRC connection re-establishment process
  • the base station where the terminal device currently resides and the anchor base station of the terminal device may be the same base station, or may be different base stations.
  • the RRC recovery process has shorter delay and lower signaling overhead.
  • the base station needs to save the context of the terminal device, which will occupy the storage overhead of the base station.
  • Multicast transmission technology is a transmission technology in which one sender sends data and multiple receivers receive data; for example, an access network device sends data, and multiple terminal devices receive data.
  • a possible multicast transmission technology is a single cell point to multipoint (single cell point to multipoint, SC-PTM) technology.
  • SC-PTM single cell point to multipoint
  • PDSCH physical downlink shared channel
  • the access network device can pre-configure the association relationship between the multicast service and the group-radio network temporary identity (G-RNTI), and each multicast service can be associated with a G-RNTI.
  • G-RNTI group-radio network temporary identity
  • the access network device can send control information (such as downlink control information (DCI)) carried on the physical downlink control channel (PDCCH) to the terminal device, and the DCI is used for Scheduling a unicast PDSCH carrying a service (this service may be a unicast service or a multicast service), the DCI may be scrambled by a cell-radio network temporary identity (C-RNTI); accordingly, After detecting the DCI according to the C-RNTI, the terminal device may receive the unicast PDSCH according to the scheduling information included in the DCI.
  • DCI downlink control information
  • PDCH physical downlink control channel
  • C-RNTI cell-radio network temporary identity
  • the access network device can send DCI to multiple terminal devices interested in the multicast service, where the DCI is used to schedule the information of the multicast service, and the information of the multicast service can be carried in the In the multicast PDSCH, the DCI can be scrambled by the G-RNTI associated with the multicast service; accordingly, after multiple terminal devices detect the DCI according to the G-RNTI associated with the multicast service, they can information to receive multicast service information.
  • Mobility management is an important part of wireless mobile communication. It refers to the general term for related content involved in order to ensure that the communication link between the network and the terminal device is not interrupted due to the movement of the terminal device. According to the state of the terminal equipment, it can be roughly divided into two parts: RRC idle state mobility management and RRC connected state mobility management. In the RRC idle state, the mobility management mainly refers to the process of cell selection/reselection, and in the RRC connected state, the mobility management mainly refers to the cell handover process. Whether it is cell selection/reselection or cell handover, it is based on the measurement results. Therefore, RRM measurement is the basis for mobility management.
  • the RRM measurement includes measuring the serving cell of the terminal equipment, and also includes measuring the neighboring cells, such as measuring the neighboring cells of the same communication system, or measuring the neighboring cells of different systems.
  • the measurement can be divided into two types: physical layer measurement (layer 1 measurement) and RRC layer measurement (layer 3 measurement).
  • At least one means one or more, and “plurality” means two or more.
  • And/or which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, it can indicate that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple .
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, and timing of multiple objects , priority or importance, etc.
  • the first paging message and the second paging message are only for distinguishing different paging messages, but do not indicate the difference in size, content, sending order, priority or importance of the two paging messages.
  • the technical solutions provided in the embodiments of the present application can be applied to the fourth generation mobile communication technology (the 4th generation, 4G) system, such as the LTE system, or can be applied to the 5G system, such as the NR system, or can also be applied to the next generation mobile communication system or other similar communication systems, which are not specifically limited.
  • the 4th generation, 4G the 4th generation, 4G system
  • the 5G system such as the NR system
  • next generation mobile communication system or other similar communication systems which are not specifically limited.
  • FIG. 1 is an application scenario of the embodiment of the present application.
  • FIG. 1 includes a network device 1, a network device 2 and a terminal device.
  • the terminal device can communicate with the network device 2 while receiving the information from the network device 1 .
  • the network device 1 for example, works in an evolved universal mobile communication system terrestrial radio access (evolved UMTS terrestrial radio access, E-UTRA) system, or works in an NR system, or works in a next-generation communication system or other communication systems.
  • E-UTRA evolved universal mobile communication system terrestrial radio access
  • the network device 2 works, for example, in an E-UTRA system, or in an NR system, or in a next-generation communication system or other communication systems.
  • the network device 1 and the network device 2 may work in the same communication system, for example, both work in the E-UTRA system, or the network device 1 and the network device 2 may also work in different communication systems, for example, the network device 1 works in In the E-UTRA system, the network device 2 works in the NR system.
  • FIG. 2 is another application scenario of the embodiment of the present application.
  • FIG. 2 includes a network device 1, a network device 2 and a terminal device.
  • the signal coverage of the network device 1 is relatively large, and the coverage of the network device 2 is relatively small.
  • the communication scenario shown in Figure 2 can be understood as a gradual transition from dense urban areas to urban areas, counties, towns and villages. In dense urban areas, the population and communication terminals are densely deployed, so more and more detailed networks are required.
  • the equipment provides services, and in the open scene such as rural areas, coverage can be achieved through a small number of large-scale network equipment, thereby saving the deployment cost of network equipment.
  • the terminal device shown in the figure is located in the service areas of the network device 1 and the network device 2 at the same time, and can communicate with the network device 2 while receiving information from the network device 1 .
  • the network device 1 can be, for example, a radio and television transmission tower.
  • This high-power large tower has the characteristics of wide coverage and high antenna height.
  • the signal coverage radius of the large tower can reach tens of kilometers, and the network device 2 can be, for example, a common function.
  • the common base station is referred to as a small tower in this application. Because the coverage radius of the large tower is too large, the communication quality of the terminal equipment during uplink transmission with the large tower may be low, or the consumption of the terminal equipment for RRM measurement will be high.
  • the terminal device when there is no uplink service requirement, can receive downlink information from the network device 1 without performing RRM measurement, and when there is an uplink service requirement, the terminal device can obtain the service through the network device 2 .
  • the terminal equipment can only receive downlink services or multicast services through the large tower when there is no need for uplink services.
  • the large tower has a large coverage area and few low-frequency beams, which can save the consumption of RRM measurement.
  • communication is carried out through a small tower without affecting the communication quality. As shown in FIG.
  • the communication coverage of the network device 1 corresponds to the first frequency layer, and the coverage of other network devices can be understood as the second frequency layer, wherein the coverage of a single cell in the first frequency layer is greater than that of the second frequency
  • the terminal equipment can enter the first frequency layer when there is no uplink service demand to achieve energy saving, and exit the first frequency layer when there is an uplink service demand to communicate.
  • the conditions for entering the first frequency layer and the conditions for exiting the frequency layer are not limited to whether there is an uplink service demand, the above is only an example, and the following will be described in detail through embodiments.
  • the network device in FIG. 1 , FIG. 2 or FIG. 3 is, for example, a base station.
  • the network device corresponds to different devices in different systems, for example, in a 4G system, it may correspond to an eNB, and in a 5G system, it corresponds to an access network device in 5G, such as a gNB.
  • the technical solutions provided in the embodiments of the present application can also be applied to future mobile communication systems, so the network devices in FIG. 2 or FIG. 3 can also correspond to network devices in future mobile communication systems.
  • FIG. 1 , FIG. 2 or FIG. 3 take the network device being a base station as an example.
  • the network device may also be a device such as an RSU.
  • the terminal device in FIG. 1 , FIG. 2 , or FIG. 3 takes a mobile phone as an example.
  • the terminal device in this embodiment of the present application is not limited to a mobile phone.
  • the method is performed by the network device and the terminal device as an example.
  • the first access network device described below may be the network device 1 in the network architecture shown in FIG. 1
  • the second access network device The device may be the network device 2 in the network architecture shown in FIG. 1
  • the terminal device may be the terminal device in the network architecture shown in FIG. 1; or, if the embodiment of the present application is applied to the network architecture shown in FIG. 2,
  • the first access network device described below may be the network device 1 in the network architecture shown in FIG. 2
  • the second access network device may be the network device 2 in the network architecture shown in FIG. 2
  • the terminal device It may be a terminal device in the network architecture shown in FIG. 2 .
  • an embodiment of the present application provides a communication method, including steps S401 to S402.
  • a terminal device camps on a first cell.
  • S402. In response to receiving a paging message from the first cell, or in response to determining uplink information to be transmitted, or in response to determining non-multicast services to be transmitted, determine to access the second cell.
  • the first cell and the second cell may be different cells, the downlink frequency of the first cell is the first frequency, and the downlink frequency of the second cell is the second frequency.
  • the first cell and the second cell may be the same cell, for example, the first cell and the second cell have the same cell global identifier (CGI) or have the same uplink frequency.
  • CGI cell global identifier
  • the cell has two downlink frequencies, namely the first frequency and the second frequency, the first frequency is the frequency for the terminal equipment to camp on, and the second frequency is the downlink frequency after the terminal equipment accesses the cell. reference frequency.
  • the terminal device is in a power-saving state (for example, an idle state, or an inactive state, or a DRX state), it can reside on the first frequency. Timing synchronization and RRM measurements.
  • the cell deployed on the first frequency is uniformly expressed as the first cell below, and the second cell deployed on the second frequency is expressed as the second cell. It should be understood that the first cell and the second cell The cells may be the same cell, and when the two cells are the same cell, the first cell is the first downlink frequency of the cell, and the second cell is the second downlink frequency of the cell.
  • the terminal device can camp on the first cell in the idle state, and receive downlink information through the first cell, thereby saving the consumption of RRM measurement.
  • the terminal device needs to establish an RRC connection, it can Accessing the second cell to obtain communication services to meet the service requirements of the terminal equipment, wherein the frequency of the first cell is different from the frequency of the second cell.
  • the terminal device camps on the first cell.
  • the first cell is a cell of the first access network device, the terminal device is in an RRC idle state or an RRC inactive state, and the terminal device can receive downlink information from the first access network device through the first cell, For example, the terminal device may receive multicast information, paging messages, and system information in the first cell.
  • the first cell does not support uplink transmission, or the first cell only supports transmission of multicast services.
  • the terminal device resides in the first cell, it only receives downlink information or only multicast services, and does not perform RRM measurement, thereby realizing power saving.
  • the second cell is a cell of a second access network device, and the second access network device is different from the first access network device, or the second access network device and the first access network device
  • the devices are the same access device.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency, that is, the frequency of the first cell is different from the frequency of the second cell.
  • the first frequency is the frequency of the first cell, such as the frequency of the SSB of the first cell
  • the second frequency is the frequency of the second cell, such as the frequency of the SSB of the second cell, or the
  • the first frequency is a frequency range, and the difference between the first frequency and the second frequency can be understood that the two frequency ranges are not exactly the same, and the two frequency ranges may overlap.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first access network device is a radio and television transmission tower (large tower), and the second access network device is an ordinary base station (small tower) as an example.
  • the communication methods provided by the embodiments of the present application are also applicable to other network architectures including two access network devices.
  • the first access network device may be a cell deployed on a satellite, and its cell coverage area It can reach hundreds of square kilometers, or even thousands of square kilometers
  • the second access network equipment can be a conventional cell, such as a common macro cell cell, or a micro cell cell. It can be understood that, in some scenarios, the first access network device and the second access network device may be the same access network device.
  • the same access network device may support the first frequency and the second frequency, where the first frequency corresponds to the first cell, and the first frequency corresponds to the first cell.
  • the second frequency corresponds to the second cell.
  • multiple first access network devices can use a single frequency network (SFN) mode to transmit the same cell reference signal on the first frequency, and combine them into a larger corresponding A cell at the first frequency, and each first access network device transmits a different cell reference signal at the second frequency. In this way, the coverage of the reference signal of the first frequency is much larger than the coverage of the reference signal of the second frequency.
  • SFN single frequency network
  • the first frequency is lower than the second frequency, that is, the transmission frequency of the large tower is lower than the transmission frequency of the small tower, and the higher the transmission frequency, the faster the information transmission rate.
  • the carrier frequency is high, the wireless signal it transmits will experience more serious fading in the process of space propagation, and it is even difficult to detect the wireless signal at the receiving end. Therefore, the penetration of high-frequency signals is poor, and transmission The distance is short, and it can only communicate in places close to the base station and with few obstructions, while low-frequency signals can achieve a wider range of network coverage through a small number of beams. Therefore, in the first cell served by the big tower, the terminal equipment can reduce The overhead of RRM measurement and the overhead of beam measurement.
  • the coverage of the first cell is larger than the coverage of the second cell, and through higher antenna deployment and/or higher signal transmission power, a large tower can achieve a wider range of coverage.
  • a large tower can achieve a wider range of coverage.
  • SI system information
  • the number of beams in the first cell is less than the number of beams in the second cell, thereby reducing the overhead of the terminal equipment for beam selection and monitoring of paging messages.
  • the first frequency layer corresponding to the first frequency may be understood as an energy saving layer, the first frequency layer includes at least one first cell, and in the energy saving layer, the terminal device may only receive downlink transmission, or only Receive multicast services, or determine whether to perform uplink transmission through signal measurement.
  • the transmission characteristics of the first frequency layer may also be understood as transmission characteristics of the first cell, that is, the first cell does not support uplink transmission, or the first cell only supports transmission of multicast services.
  • the first access network device corresponding to the first frequency may be, for example, a large tower. In the first frequency layer where the large tower provides services, due to the large radius of the large tower coverage area, the terminal equipment consumes a large amount of uplink transmission. Therefore, The terminal device can save energy by receiving only downlink traffic or only multicast traffic, and leave the first frequency layer when it needs to perform upstream transmission or when it needs to receive non-multicast traffic.
  • the first cell corresponding to the first frequency layer does not support uplink transmission, that is, the first cell layer only supports downlink transmission.
  • the terminal device only receives downlink information from the first access network device in the first frequency layer.
  • the terminal device needs to perform uplink transmission, it can leave the first frequency layer. Further, it can obtain services through other access network devices, for example, Uplink transmission is performed through the second cell.
  • the first frequency may be deployed on a frequency band or frequency that only supports downlink transmission (downlink only, DL only).
  • the network device may plan a first frequency set as a DL only frequency band, and the first frequency set includes at least a first frequency.
  • the first cell corresponding to the first frequency layer supports uplink transmission
  • the terminal device may establish a connection with the first access network device at the first frequency layer.
  • the terminal device needs to determine whether to perform access in the first cell, so as to avoid excessive consumption of uplink transmission or poor transmission quality when the radius of the first cell is large.
  • the transmission characteristics of the first frequency layer are described above. It can be understood that the first frequency layer includes at least one first cell, so the transmission characteristics of the first frequency layer described above can be understood as transmission characteristics of the first cell. Next, a method for the terminal device to determine whether to access the first cell is described.
  • the "response” may be understood as a trigger condition. That is, when receiving the paging message from the first cell, the terminal device is triggered to determine that the target access cell is the second cell, or when there is uplink information to be transmitted, the terminal device is triggered to determine that the target access cell is the second cell, or When there is a non-multicast service to be transmitted, the terminal device is triggered to determine that the target access cell is the second cell.
  • S402 can also be understood as, when the first condition is satisfied, the terminal device determines to access the second cell, and the first condition includes at least one of the following:
  • the first condition can be understood as a condition that triggers the terminal device to leave the first frequency layer.
  • the terminal device determines to leave the first cell. Further, the terminal device The device determines to access the second cell.
  • step S402 may be understood as including steps S4021 and S4022.
  • S4021 The terminal device determines that access needs to be performed.
  • S4022 The terminal device determines that the target access cell is the second cell, or the terminal device determines to access the first cell.
  • the terminal device receives first indication information from the first access network device in the first cell, where the first indication information is used to instruct the terminal device to access, and further, the terminal device also receives Second indication information from the first access network device, where the second indication information is used to instruct the terminal device to access the second cell, wherein the first indication information and/or the second indication information may be carried in a paging message , the terminal device determines whether to access from the first cell according to the indication information in the paging message.
  • the first indication information and/or the second indication information come from an access network device
  • the second indication information indicates that the terminal device accesses from the first cell, or indicates that the terminal device does not access from the first cell, Either instructing the terminal device to access from the second cell, or instructing the terminal device to select a cell for access according to the second frequency, or instructing the terminal device that the frequency priority of the first frequency is the lowest priority.
  • the access network device can flexibly schedule whether the terminal device accesses the first cell in real time according to the network load, thereby improving the reliability of the communication system.
  • the second indication information please refer to the following three designs as examples to understand:
  • the second indication information instructs the terminal device to access from the first cell, or instructs the terminal device not to access from the first cell.
  • the terminal device receives a paging message from the access network device, and the paging cell includes an access permission indication, then the terminal device determines to access from the first cell; for another example, the terminal device receives the paging message from the access network device.
  • paging message the paging cell includes a redirection indication and/or a second cell identity, then the terminal device determines to access from the second cell.
  • the second indication information may be a bit value or a bit state, and further, may be a reserved bit in the paging message, and further, flexible scheduling may be implemented through a small amount of signaling consumption.
  • the second indication information instructs the terminal device to select a cell for access according to the second frequency.
  • the terminal device receives second indication information from the first access network device, the second indication information includes the value of the second frequency, and the terminal device can perform cell search or cell selection at the second frequency layer according to the second frequency, Select to access the second cell, and further, initiate a service in the second cell.
  • the network device can determine a suitable cell according to the network load, and explicitly instruct the terminal device to access, so as to improve the utilization of network resources.
  • the second indication information indicates that the frequency priority of the first frequency of the terminal device is the lowest priority.
  • the terminal device receives second indication information from the first access network device, where the second indication information is used to indicate the frequency priority of the first frequency, and the terminal device can use the frequency priority of the first frequency and the priority list according to , to adjust the priority of the first cell, when the frequency priority of the first frequency is lower than the frequency priority of the second frequency, the terminal device can trigger cell measurement and/or cell reselection for the second frequency, and further, re- The second cell is selected, wherein the priority list is predefined or preconfigured.
  • the terminal device may directly trigger cell measurement and/or cell reselection for the second frequency.
  • the terminal device may perform cell measurement, cell selection, or cell reselection according to a preconfigured or predefined alternative frequency, wherein the standby The selected frequency may be a second frequency, and the second frequency is a frequency different from the first frequency.
  • the terminal device can determine whether the first cell is suitable for access through the frequency priority, and can determine at least one alternative frequency through the priority list, and then according to the real-time load situation of the communication system, to determine the appropriate cell for access to ensure that Transmission reliability of subsequent services.
  • the access network device when the access network device determines that the terminal device needs to access, it may notify the terminal device through the first indication information and/or the second indication information. Further, the access network device may determine whether the terminal device is Accessing from the first cell, for example, the access network device determines the type of downlink transmission currently being performed, and when the transmission volume of downlink services meets the second threshold, it is determined that the terminal device can access in the first cell, otherwise, it is determined that the terminal device is not available The first cell access, where the second threshold may be predefined.
  • the access network device may also determine whether the terminal device accesses from the first cell according to the overall transmission volume of the first frequency layer, and when the total transmission volume of the first frequency layer meets the third threshold, determine that the terminal device can access the first cell in the first cell. One cell accesses, otherwise, it is determined that the terminal device does not access the first cell, wherein the third threshold may be predefined.
  • the method further includes step S401: the access network device determines second indication information, where the indication information is used to indicate access to the second cell, or not to access the first cell, or to indicate that the second frequency Select a cell for access, or indicate that the frequency priority of the first frequency is the lowest priority.
  • the method further includes step S402: the access network device sends the indication information to the terminal device through the first cell.
  • the first access network device may send second indication information to the terminal device, and the meaning of the second indication information may refer to the above related description.
  • the terminal device determines the uplink information to be transmitted, and further determines that access needs to be performed.
  • Cell access According to the real-time network load situation, determine a suitable cell for access. Specifically, please refer to the following three designs as examples to understand:
  • the first cell does not support uplink transmission, and when the terminal device determines that there is uplink information to be transmitted, it determines to access the second cell. That is to say, the first cell only supports downlink transmission, and the terminal device can only receive downlink transmission in the first cell without performing uplink transmission.
  • the coverage of the first cell is large, uplink transmission consumption can be avoided and power saving can be achieved.
  • the first cell supports uplink transmission, and the terminal device determines whether to access the first cell according to the reference signal measurement.
  • the terminal device can determine whether to access according to the first frequency according to the reference signal measurement.
  • the terminal device measures the reference signal to obtain the reference signal received power (RSRP) value.
  • RSRP reference signal received power
  • the terminal device determines to access from the first cell, and when the measurement result is less than the first threshold.
  • the first threshold is predefined or pre-configured, that is, when the terminal device is relatively close to the first access network device, the quality of the received reference signal The requirement can be met, and accordingly, the terminal device can bear the consumption of uplink transmission, so the terminal device determines to access from the first cell; when it is determined that the RSRP value does not meet the first threshold, the terminal device determines not to access from the first cell , or, the terminal device determines to access from a second cell, where the second cell is a cell of the second access network device.
  • the terminal equipment can determine the cell with the least transmission consumption to access at the current location, or determine the access to the cell with acceptable transmission consumption, without the need to indicate through the network equipment, which can avoid the movement of the terminal equipment.
  • the network equipment needs to be frequently indicated, or the indicated access cell is not suitable, thereby further realizing power saving while ensuring the transmission quality.
  • the first cell supports uplink transmission, and the terminal device determines whether to access from the first cell according to the service type that triggers access. For example, when the terminal device determines that the uplink information needs to be sent as signaling, it determines to access from the first cell, because usually the signaling needs to transmit less content and occupies less transmission resources, so it can be sent quickly and consumes power. Also less, so the terminal equipment can perform uplink signaling transmission in the first cell. When the terminal device determines that the uplink information needs to be sent as a data service, it determines not to access from the first cell, and further, the terminal device may determine to access the second cell through cell reselection or cell selection. Through this design, the indication of the network device can be avoided, and additional measurement consumption can be avoided, quickly determining whether to access from the first cell, and improving communication efficiency.
  • the terminal device determines the non-multicast service to be transmitted, and then determines that access needs to be performed. Further, the terminal device may determine whether to transmit from the first cell according to the transmission characteristics of the first cell and/or the type of the service to be transmitted. Access to the first cell. In this case, the first cell corresponding to the first frequency layer only supports the transmission of non-multicast services. Therefore, when the terminal device determines that there is a non-multicast service to be transmitted, it needs to access, and the terminal device determines whether to receive or not from the first cell.
  • the terminal device determines that there is a non-multicast service to be transmitted, it needs to access, and the terminal device determines whether to receive or not from the first cell.
  • the terminal device determines that there is a non-multicast service to be transmitted, it needs to access, and the terminal device determines whether to receive or not from the first cell.
  • the terminal device determines that there is a non-multicast service to be transmitted, it needs to access, and the terminal device determines whether to receive
  • the network device can deploy the energy saving layer so that the terminal device only receives low-power transmission in the first cell, saves power overhead, and accesses the second cell when high-power transmission is required , thereby realizing the power saving of the terminal equipment, and when the radius of the first cell is greater than the radius of the second cell, the measurement consumption of the terminal equipment when moving in the first cell can be reduced compared to the second cell. Therefore, the terminal equipment can be Keep consumption low in a wide range, further saving the consumption of terminal equipment.
  • the method further includes S403: the terminal device accesses the second cell, and further, the terminal device performs service transmission in the second cell.
  • the method further includes step S404: when the serving cell of the terminal equipment is a third cell, through cell selection, cell reselection or handover, the serving cell is replaced with the first cell, the third cell frequency is different from the first frequency.
  • the third cell may be understood as a cell in the second frequency layer, the third cell is different from the first cell, and the third cell and the second cell may be the same or different.
  • the terminal device can leave the second frequency layer and enter the energy saving layer (the first frequency layer), where the second frequency layer should be understood as the composition of other cells other than the first frequency layer.
  • the second frequency layer is not limited to one frequency, but may also include multiple frequencies, including the second cell and the third cell. The following description will be given by taking the serving cell of the terminal device as the third cell as an example. It should be noted that the embodiment of the present application does not limit the execution order of the step S404. In a possible implementation shown in FIG. 5, the S404 is executed before the S401.
  • the terminal device receives a first message from the access network device, where the first message indicates the frequency priority of the first frequency. For example, the first message indicates that the frequency priority of the first frequency is the highest priority, and the terminal device triggers cell reselection to the first frequency layer.
  • the terminal device receives a first message from an access network device, where the first message indicates that the first frequency is an energy-saving mode frequency. After the terminal device determines the frequency of the energy-saving mode, it may determine the handover serving cell as the first cell in combination with the current service requirement and/or the energy-saving requirement, for example, determined by the terminal device.
  • the above-mentioned first message and/or second message may be a broadcast message or a dedicated RRC message.
  • the access network device When the access network device wants to send the energy saving layer information to multiple terminal devices, it may be sent by a broadcast message to save energy. Signaling consumption, when the access network device needs to send the specified energy-saving layer information for the terminal device, it can be sent through dedicated signaling, thereby realizing flexible configuration for the terminal device.
  • the access network device may indicate the frequency priority information of the energy saving layer to the terminal device.
  • the method further includes step S4041: the access network device sends a first message to the terminal device, the first message The message is used to indicate the frequency priority of the first frequency, or the first message is used to indicate that the first frequency is an energy saving mode frequency. Then, the terminal device can be dynamically scheduled to enter the energy saving layer according to the network load situation.
  • the terminal device determines to replace the serving cell with the first cell according to the energy saving requirement. For example, if the terminal device is in the energy saving mode, the terminal device may adjust the frequency priority of the first frequency corresponding to the energy saving layer (first frequency layer) to the highest priority, thereby triggering cell reselection for the first frequency layer.
  • the terminal device determines to replace the serving cell with the first cell according to service requirements. For example, the terminal device determines to change the serving cell to the first cell when the service activity in the first duration is lower than a certain threshold, where the service activity can be understood as the service activity degree, such as the interval between two services, the longer the interval , the lower the business activity. For another example, the terminal device determines to change the serving cell to the first cell when the service requirements in the next first time period are lower than a certain threshold, and the service requirements include access delay requirements. When the delay is higher than a certain threshold, it can be determined to replace the serving cell with the first cell.
  • the threshold can be set to It is set to 5ms.
  • the serving cell can be changed to the first cell.
  • the access delay that the terminal device needs to meet is lower than a certain threshold value, it takes a period of time to return from the energy-saving layer to the second frequency layer, so the terminal device may not reside in the energy-saving layer to meet the access time requirements. delay requirements, wherein the first duration may be predefined, and the first duration may be a period of time or a period of time.
  • the terminal device determines to replace the serving cell with the first cell according to the power. For example, when the terminal device determines that the current battery level is lower than a second threshold, or when the terminal device is in a low-power mode, it changes the serving cell to the first cell to save battery power.
  • the second threshold may be preset, or the terminal device may dynamically set.
  • the terminal device may combine any two or all of the above manners to determine to replace the serving cell as the first cell.
  • the above conditions for triggering the terminal device to determine to change the serving cell to the first cell can be summarized as the second condition.
  • the terminal device determines to replace the serving cell with the first cell, and the second condition includes at least one of the following:
  • the terminal device when the terminal device wishes to save power overhead (for example, only receiving downlink transmission), it can reside in the first frequency layer (energy saving layer), and when high-power transmission is required (for example, Uplink transmission is required), and access to the second frequency layer to save power and extend service duration while meeting service requirements.
  • the access network device can flexibly and dynamically schedule the terminal device to enter or leave the first frequency layer through network messages; the terminal device can also determine whether to access the first frequency layer according to its own power saving state and/or service requirements. , and then realize the dynamic adjustment in combination with the network load, and improve the resource utilization rate and communication stability of the communication system.
  • the network can deploy the first frequency layer only for transmitting multicast services, and sending multicast services through a cell with a larger coverage area can improve transmission efficiency. , saving network deployment costs.
  • an embodiment of the present application provides a communication method, including steps S601-S602.
  • a terminal device camps on a first cell.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency.
  • first frequency and the second frequency, and the first access network device and the second access network device reference may be made to the relevant description in Embodiment 1, here No longer.
  • the terminal device can camp on the first cell in the idle state, and receive multicast services through the first cell, thereby saving the consumption of RRM measurement.
  • a second cell may be accessed to obtain communication services, wherein the frequency of the first cell is different from the frequency of the second cell.
  • the second cell is a cell of a second access network device, and the second access network device is different from the first access network device.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency, that is, the frequency of the first cell is different from the frequency of the second cell.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the access network equipment can implement wide coverage multicast transmission through the deployment of a small number of base stations, saving the cost of deploying the network architecture, And improve the transmission efficiency of multicast services.
  • step S402 For the transmission feature supported by the corresponding first cell of the first frequency layer, reference may be made to the relevant description in step S402, which will not be repeated here.
  • the terminal device may access the second cell when the first condition is met, and the first condition includes at least one of the following:
  • step S602 may be understood as including steps S6021 and S6022.
  • S6021 The terminal device determines that access is required.
  • the terminal device determines that the target access cell is the second cell, or the terminal device determines to access the first cell.
  • the terminal device receives first indication information from the first access network device in the first cell, where the first indication information is used to instruct the terminal device to access, and further, the terminal device also receives Second indication information from the first access network device, where the second indication information is used to instruct the terminal device to access the second cell, wherein the first indication information and/or the second indication information may be carried in a paging message , the terminal device determines whether to access from the first cell according to the indication information in the paging message.
  • the first indication information and/or the second indication information come from an access network device
  • the second indication information indicates that the terminal device accesses from the first cell, or indicates that the terminal device does not access from the first cell, Either instructing the terminal device to access from the second cell, or instructing the terminal device to select a cell for access according to the second frequency, or instructing the terminal device that the frequency priority of the first frequency is the lowest priority.
  • the access network device can flexibly schedule whether the terminal device accesses the first cell in real time according to the network load, thereby improving the reliability of the communication system.
  • the second indication information reference may be made to the relevant description in step S402, which will not be repeated here.
  • the access network device may notify the terminal device through the first indication information and/or the second indication information.
  • the terminal device determines the non-multicast service to be transmitted, and further determines that access is required. Further, the terminal device may determine whether to transmit from the first cell according to the transmission characteristics of the first cell and/or the type of the service to be transmitted. Access to the first cell.
  • the first cell does not support uplink transmission, and when the terminal device determines that there is non-multicast to be transmitted, it determines to access the second cell. That is to say, the first cell only supports the transmission of multicast services, and the terminal device can only receive multicast services in the first cell without performing uplink transmission. When the coverage of the first cell is large, the consumption of uplink transmission can be avoided, and the Power saving.
  • the method further includes S603: the terminal device accesses the second cell, and further, the terminal device performs service transmission in the second cell.
  • the method further includes step S604: when the serving cell of the terminal device is a third cell, through cell selection, cell reselection or handover, the serving cell is replaced with the first cell, the third cell frequency is different from the first frequency.
  • the third cell may be understood as a cell in the second frequency layer, the third cell is different from the first cell, and the third cell and the second cell may be the same or different.
  • the terminal device works in the second frequency layer, if it is determined that it only needs to receive multicast services and has no other service requirements in the next period of time, the terminal device can leave the second frequency layer and enter the energy saving layer (the first frequency layer),
  • the second frequency layer should be understood as a set of cells composed of cells other than the first frequency layer, including the second cell and the third cell.
  • the method for the terminal device to trigger the terminal device to enter the first frequency layer may refer to the above steps The relevant description in S404 will not be repeated here. It should be noted that the embodiment of the present application does not limit the execution order of the step S604. In a possible implementation shown in FIG. 7, the S604 is executed before the S601.
  • the first frequency layer can be configured to be used only for transmitting multicast services, thereby further improving the transmission efficiency of multicast services.
  • the broadcast multicast service is provided for a large number of terminal devices through the first access network device, without the need for simultaneous transmission through multiple access network devices, thereby improving the resource utilization rate of the communication system.
  • an embodiment of the present application provides a communication method, including steps S1401-1403.
  • a terminal device resides on a first frequency.
  • the terminal device receives access information corresponding to the second frequency by using the first frequency.
  • the terminal device accesses the second frequency according to the access information.
  • the terminal device resides on the first frequency.
  • the terminal device may receive downlink information through the first frequency, for example, the terminal device may receive multicast information, paging messages, and system information and random access response information at the first frequency.
  • the UE resides in a first cell on a first frequency, and the first cell does not support uplink transmission, or the first cell only supports transmission of multicast services. For example, when the terminal device is in the RRC idle state or the RRC inactive state, it only receives downlink information or only multicast services through the first frequency, and does not perform RRM measurement or reduces RRM measurement, thereby achieving power saving.
  • the terminal device receives access information corresponding to the second frequency through the first frequency.
  • the access information is configuration information required by the terminal device when performing access on the second frequency.
  • the terminal device accesses the second frequency according to the access information.
  • the terminal device responds to receiving a paging message from the first cell of the first frequency, or in response to determining that uplink information to be transmitted, or in response to determining that non-multicast information to be transmitted is to be transmitted. service, it is determined that uplink access needs to be initiated.
  • the first frequency and the second frequency corresponds to the first cell
  • the second frequency corresponds to the second cell
  • the camping on the first frequency can be understood as camping on the first cell
  • the accessing the second frequency can be understood as accessing the first cell
  • the present application does not limit the existence form of the first cell and the second cell
  • the first cell and the second cell may have the same physical cell identifier (physical cell identifier, PCI), which is only named for the convenience of expression.
  • PCI physical cell identifier
  • the terminal device can reside on the first frequency in the RRC idle state, and receive downlink information through the first frequency, thereby saving the consumption of RRM measurement.
  • a second frequency may be accessed to obtain communication services to meet service requirements of the terminal device, wherein the first frequency is different from the second frequency.
  • the process of the access network device sending the access information to the terminal device may further include steps S1404 to 1407 . It should be noted that steps S1404 to 1407 are optional steps.
  • S1404 The terminal device sends a probe signal to the second access network device.
  • the second access network device receives the probe signal from the terminal device.
  • the second access network device determines access assistance information corresponding to the terminal device.
  • step S1406 The second access network device sends the access assistance information to the first access network device. It should be understood that when the first access network device and the second access network device are the same device, step S1406 does not need to be performed.
  • the first access network device sends access information corresponding to the second frequency to the terminal device.
  • step S1404 the terminal device sends a probe signal to the second access network device.
  • the second access network device receives the probe signal from the terminal device.
  • the sounding signal is a specific code sequence or a reference signal.
  • the sounding signal is a random access channel (random access channel, RACH) preamble sequence
  • the sounding resource is a RACH resource.
  • the second access network device receives the probe signal from the terminal device, and determines access assistance information of the terminal device corresponding to the second frequency according to the probe signal. For example, after receiving the reference signal from the terminal device, the second access network device may determine the location of the terminal device, and then determine the access information required by the terminal device to establish a connection with the second access network device.
  • multiple second access network devices may be configured with the same set of sounding resources, where the set of sounding resources includes at least one group of sounding resources, where the sounding resources include sounding code sequences, reference signals, and at least one of the frequency resources of the reference signal.
  • the sounding resource set may be pre-configured in the terminal device, or may be sent to the terminal device by the access network device through the first frequency or the second frequency.
  • the terminal equipment determines a sounding signal according to the sounding resource set, and sends the sounding signal to the second access network equipment through a third frequency, where the third frequency is an uplink frequency at which the terminal equipment communicates with the second cell, wherein the third frequency
  • the configuration information of the frequency can be received through the first cell, then when the terminal device resides in the first cell in an energy-saving state, it can receive the configuration information of the third frequency through the first cell, and then directly report to the second cell on the third frequency.
  • the access network device sends the uplink information, thereby saving energy and delay consumption of acquiring the configuration information of the cell deployed on the third frequency and the access information from the second cell.
  • step S1405 the second access network device determines access assistance information corresponding to the terminal device.
  • the access assistance information is used for the terminal device to access on the second frequency.
  • the access assistance information includes at least one second cell configuration information, the second cell is an access cell corresponding to the second frequency, and the second cell configuration information includes at least one of the following:
  • the identification information of the second cell such as PCI or cell identifier (cell indentifer, CI);
  • the configuration information of the reference signal of the second cell for example, the configuration information of the SSB, the configuration information of the CSI-RS, or the configuration information of the discovery reference signal (DRS);
  • Access resource information of the second cell for example, configuration information of RACH resources, or message 3 (Msg3) authorization information;
  • SIB system information block
  • SIB2 system information block
  • step S1407 the first access network device determines access information corresponding to the second frequency.
  • the first access network device determines access information corresponding to the second frequency according to the access assistance information, where the access information includes one or more of the access assistance information. configuration information of the second cell.
  • the first access network device may also receive access assistance information from multiple second access network devices.
  • the first access network device may send the second cell configuration information to the UE.
  • the first access network device may select one or more from multiple second cell configuration information as the access information, or use the access information as the access information. All access assistance information is sent to the terminal device as access information.
  • the first access network device determines access information according to at least one measurement result and the access assistance information, where the at least one measurement result is at least one second cell according to the received sounding signal
  • the determined measurement result that is, the measurement result may represent the quality of the corresponding second cell receiving the sounding signal, for example, the measurement result includes an RSRP value or a reference signal received quality (RSRQ) value.
  • the first access network device selects one or more second cells that receive the highest quality of the sounding signal according to the measurement result.
  • the first access network device selects at least one second cell whose measurement result is higher than the threshold, and sends configuration information of the at least one second cell to the terminal device.
  • the access information corresponding to the second frequency is carried in a random access response message, system broadcast information, or a probe response message.
  • the second frequency access information may be sent through different messages.
  • the cell ID may be carried in the probe response message, and the RACH configuration may be sent through system broadcast.
  • the first access network device transmits the confirmation flag of the probe signal to the terminal device through the probe response information, and after receiving the confirmation flag, the terminal device may determine that the probe response information responds to the detection signal.
  • the access information is sent to the terminal device through the first frequency.
  • the terminal device receives access information corresponding to the second frequency through the first frequency, and accesses the second frequency according to the access information. The following describes the method for the terminal device to use the access information for access in detail.
  • the access information includes identification information of the second cell, and the terminal device determines the identification of the access cell according to the identification information.
  • the access information does not include RACH configuration information, and the terminal device may obtain the cell timing according to the SSB or CSI-RS, read SIB1 to obtain the random access configuration information, and then perform random access according to the random access configuration information. enter.
  • the access information includes scheduling configuration information of SIB1, and the terminal may determine the scheduling of SIB1 according to the scheduling configuration information of SIB1 in the access resource information, and receive SIB1 according to the scheduling.
  • the access information includes configuration information of the random access resource and the ID of the second cell
  • the terminal device configures the first cell according to the ID of the second cell and the configuration information of the random access resource.
  • the second cell initiates random access, where the frequency of the second cell is the second frequency.
  • the configuration information of the random access resource may include at least one of an access timing configuration, a frequency configuration, and a preamble configuration of the random access resource.
  • the access information includes the authorization information of the Msg3 of the second cell
  • the terminal device can send the Msg3 to the base station according to the authorization information of the Msg3, without the need to initiate a complete randomization in the second cell.
  • Msg3 may include the RRC establishment request, RRC re-establishment request, or RRC recovery request information of the terminal equipment
  • Msg3 may also include the first beam identifier determined by the terminal equipment through measurement, the first beam identifier
  • the beam identifier is used to indicate the beam that the terminal device requests to access, and can also be understood as the preferred beam direction determined by the terminal device
  • the second access network device can determine the preferred beam direction of the terminal device according to the first beam identifier, Further, the second access network device may schedule the terminal device according to the preferred beam direction.
  • the access information includes frequency point information of the second frequency
  • the terminal device performs access according to the frequency point information.
  • the second cell configuration information does not include the frequency information of the second frequency
  • the terminal device may determine it through the broadcast message of the first cell, or the frequency information of the second frequency may also be determined by the terminal device. It can be pre-configured in the terminal device.
  • the access information includes the frequency point information of the second frequency
  • the terminal device can use the frequency point information to access, which saves time delay and energy consumption for receiving broadcast messages.
  • the access information includes configuration information of the reference signal of the second cell, and the terminal device may measure the reference signal according to the configuration information of the reference signal.
  • the access information includes SSB configuration information
  • the terminal device can perform SSB measurement and cell synchronization according to the window configuration information of the SSB, and after completing downlink synchronization, can initiate access according to random access resources.
  • the access information includes CSI-RS configuration information
  • the terminal device may perform CSI-RS measurement according to the cell timing after acquiring the cell timing (frame boundary or slot boundary) according to the SSB. The position transmission of the RS determines the downlink timing (frame boundary or slot boundary) of the cell, and then initiates access according to random access resources.
  • the terminal device may also determine the first beam identifier carried in Msg3 according to the SSB measurement result or the CSI-RS measurement result. It should be noted that when the configuration information of the second cell does not include the configuration information of the reference signal of the second cell, the terminal device may receive the SSB by blindly detecting the SSB reference signal corresponding to the cell identifier.
  • the access information includes configuration information of multiple second cells
  • the terminal device measures reference signals of multiple second cells.
  • the terminal device only searches for the downlink reference signal of one cell, it determines to use the access parameters of the searched cell for access.
  • the terminal device searches for multiple cells, it can select the access parameters of one cell for access. Specifically, the selection can be made according to the measurement results of the multiple cells, and then the cell with high measurement quality can be selected and provided to the terminal. equipment to improve the communication quality of the terminal equipment and save the consumption of the terminal equipment for cell measurement.
  • the terminal device can reside on the first frequency in the RRC idle state, and receive downlink information through the first frequency, thereby saving the consumption of RRM measurement.
  • the second access network device can send a probe signal to the second access network device, and the second access network device can determine the location of the terminal device by receiving the probe signal from the terminal device, and then determine that it can provide services for the terminal device, and the second access network device can
  • the access assistance information for terminal equipment access (via the first access network equipment) is sent to the terminal equipment through the first frequency, and the terminal equipment accesses the second frequency to obtain communication services to meet the service requirements of the terminal equipment.
  • FIG. 8 is a schematic block diagram of a communication apparatus 800 according to an embodiment of the present application.
  • the communication apparatus 800 is, for example, a terminal device 800 .
  • the terminal device 800 includes a processing module 810 and a transceiver module 820 .
  • the terminal device 800 may be a terminal device, or may be a chip applied in the terminal device or other combined devices, components, etc. having the functions of the above-mentioned terminal device.
  • the transceiver module 820 may be a transceiver, the transceiver may include an antenna and a radio frequency circuit, etc.
  • the processing module 810 may be a processor, such as a baseband processor, and the baseband processor may include one or more CPU.
  • the transceiver module 820 may be a radio frequency unit, and the processing module 810 may be a processor, such as a baseband processor.
  • the transceiver module 820 may be an input/output interface of a chip (eg, a baseband chip), and the processing module 810 may be a processor of the chip system, which may include one or more central processing units.
  • the processing module 810 in this embodiment of the present application may be implemented by a processor or a circuit component related to the processor, and the transceiver module 820 may be implemented by a transceiver or a circuit component related to the transceiver.
  • the processing module 810 may be configured to perform all operations except the transceiving operation performed by the terminal device in the embodiment shown in FIG. 4, FIG. 5 or FIG. 6, FIG. 7 or FIG. 14A-14B, such as S402, and /or other processes for supporting the techniques described herein.
  • the transceiver module 820 may be used to perform all transceiver operations performed by the terminal device in the embodiments shown in FIG. 4, FIG. 5 or FIG. 6, FIG. 7 or FIG. 14A-14B, such as S401 and S403, and/or for supporting Other procedures for the techniques described herein.
  • transceiver module 820 reference may be made to the introduction to the implementation of the transceiver module 820.
  • the transceiver module 820 is used to communicate with other communication devices;
  • a processing module 810 configured to enable the communication device to camp in the first cell through the transceiver module 820;
  • the processing module 810 is further configured to: determine to access the second cell in response to receiving a paging message from the first cell, or in response to determining uplink information to be transmitted, or in response to determining non-multicast services to be transmitted.
  • the frequency of the first cell is the first frequency
  • the frequency of the second cell is the second frequency.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell does not support uplink transmission, or the first cell only supports transmission of multicast services.
  • the processing module 810 is configured to determine access to the second cell in the following manner:
  • the processing module 810 is configured to determine access to the second cell in the following manner: measure the reference signal of the first cell, and when the measurement result is less than a first threshold, determine to access the second cell Second district.
  • the transceiver module 820 is further configured to receive indication information from a network device, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell, or Instructing to select a cell for access according to the second frequency, or instructing that the frequency priority of the first frequency is the lowest priority.
  • the processing module 810 is configured to perform cell selection according to the second frequency, and select to access the second cell; or reduce the frequency priority of the first frequency to a lower level than the The frequency priority of the second frequency triggers the measurement of the cell whose frequency is the second frequency and reselection to the second cell.
  • the processing module 810 is configured to change the serving cell to the first cell through cell selection, cell reselection or handover, Wherein, the frequency of the third cell is different from the first frequency.
  • the transceiver module 820 is configured to receive a first message from a network device, where the first message is used to indicate the frequency priority of the first frequency, or the first message is used to Indicates that the first frequency is an energy saving mode frequency.
  • the transceiver module 820 is further configured to measure the first frequency and change the serving cell to the first cell.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • the processing module 810 is configured to, according to the energy saving mode of the terminal device, the service activity level of the terminal device, the power of the terminal device and the access delay of the terminal device, At least one determines to replace the serving cell as the first cell.
  • the terminal device 800 is configured to implement the methods corresponding to the terminal device in the embodiments shown in FIGS. 14A to 14B .
  • the transceiver module 820 is further configured to receive access information corresponding to the second frequency through the first frequency
  • the processing module 810 is further configured to access the second frequency through the transceiver module 820 according to the access information.
  • terminal device 800 For other functions that can be implemented by the terminal device 800, reference may be made to the relevant introductions of the embodiments shown in FIG. 4, FIG. 5, or FIG. 6, FIG. 7, or FIGS.
  • FIG. 9 is a schematic block diagram of a communication apparatus 900 provided by an embodiment of the present application.
  • the communication apparatus 900 is, for example, a network device 900 .
  • the network device 900 includes a processing module 910 and a transceiver module 920 .
  • the network device 900 may be a network device, or may be a chip applied in the network device or other combined devices, components, etc., having the functions of the above-mentioned network device.
  • the transceiver module 920 may be a transceiver, the transceiver may include an antenna and a radio frequency circuit, etc.
  • the processing module 910 may be a processor, such as a baseband processor, and the baseband processor may include one or more CPU.
  • the transceiver module 920 may be a radio frequency unit, and the processing module 910 may be a processor, such as a baseband processor.
  • the transceiver module 920 may be an input/output interface of a chip (eg, a baseband chip), and the processing module 910 may be a processor of the chip system, which may include one or more central processing units.
  • the processing module 910 in this embodiment of the present application may be implemented by a processor or a circuit component related to the processor, and the transceiver module 920 may be implemented by a transceiver or a circuit component related to the transceiver.
  • the processing module 910 may be configured to perform all operations except the transceiving operations performed by the access network device in the embodiment shown in FIG. 4, FIG. 5 or FIG. 6, FIG. 7 or FIGS. 14A-14B, and/ or other processes used to support the techniques described herein.
  • the transceiver module 920 may be configured to perform all transceiver operations performed by the network device (access network device) in the embodiments shown in FIG. 4 , FIG. 5 or FIG. 6 , FIG. 7 or FIGS. 14A to 14B , and/or Additional processes supporting the techniques described herein.
  • transceiver module 920 refers to the introduction to the implementation of the transceiver module 820.
  • the processing module 910 is configured to determine indication information, where the indication information is used to instruct to access the second cell, or to instruct not to access the first cell, or to instruct to select a cell for access according to the second frequency, or to instruct the first cell to be accessed.
  • the frequency priority of the frequency is the lowest priority;
  • the transceiver module 920 is configured to send the indication information to the terminal device through the first cell, where the frequency of the first cell is the first frequency, the frequency of the second cell is the second frequency, and the frequency of the second cell is the second frequency.
  • the first cell is a cell of the first access network device, and the second cell is a cell of the second access network device.
  • the first cell and the second cell satisfy at least one of the following:
  • the first frequency is lower than the second frequency
  • the coverage of the first cell is greater than the coverage of the second cell
  • the number of beams in the first cell is less than the number of beams in the second cell.
  • the first cell does not support uplink transmission, or the first cell only supports transmission of multicast services.
  • the indication information is carried in a paging message.
  • the transceiver module 920 is configured to send a first message to the terminal device, where the first message is used to indicate the frequency priority of the first frequency, or the first message uses for indicating that the first frequency is a power saving mode frequency.
  • the first message is a broadcast message or a dedicated radio resource control RRC message.
  • the network device 900 is configured to implement the method corresponding to the second access network device in the embodiments shown in FIGS. 14A to 14B .
  • the transceiver module 920 is configured to receive a probe signal from a terminal device, the processing module 910 is configured to determine access assistance information corresponding to the terminal device, and the transceiver module 920 is further configured to send the first access network device The access assistance information is sent.
  • the network device 900 is configured to implement the method corresponding to the first access network device in the embodiments shown in FIGS. 14A to 14B .
  • the transceiver module 920 is configured to receive access assistance information from the second access network device, where the access assistance information is used by the terminal device to access the second frequency, and the processing module 910 is configured to access the second frequency according to the access assistance information.
  • the information determines access information, and the transceiver module 920 is further configured to send the access information to the terminal device through the first frequency.
  • FIG. 10 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device takes a mobile phone as an example.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, and process data of software programs.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 10 only one memory and processor are shown in FIG. 10 . In an actual end device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the terminal device (the transceiver unit may be a functional unit, and the function unit can realize the sending function and the receiving function; alternatively, the transceiver unit may also be It includes two functional units, namely a receiving unit capable of realizing a receiving function and a transmitting unit capable of realizing a transmitting function), and a processor with a processing function is regarded as a processing unit of the terminal device. As shown in FIG. 10 , the terminal device includes a transceiver unit 1010 and a processing unit 1020 .
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
  • the processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the transceiver unit 1010 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1010 may be regarded as a transmitting unit, that is, the transceiver unit 1010 includes a receiving unit and a transmitting unit.
  • the transceiver unit may also sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like.
  • the transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.
  • transceiving unit 1010 is configured to perform the sending and receiving operations on the terminal device side in the above method embodiments
  • processing unit 1020 is configured to perform other operations on the terminal device in the above method embodiments except the transceiving operations.
  • the processing unit 1020 may be configured to perform all operations performed by the terminal device in the embodiments shown in FIG. 4 and FIG. 5 except for the transceiving operations, such as determining access to the second cell, etc. operations, and/or other processes for supporting the techniques described herein.
  • the transceiving unit 1010 may be configured to perform all transceiving operations performed by the terminal device in the embodiments shown in FIGS. 4 and 5, such as camping on the first cell, and/or other processes used to support the techniques described herein .
  • the processing unit 1020 may be configured to perform all operations performed by the terminal device in the embodiments shown in FIG. 6 and FIG. 7 except for the transceiving operation, such as determining access to the second cell and/or other processes for supporting the techniques described herein.
  • the transceiving unit 1010 may be configured to perform all transceiving operations performed by the terminal device in the embodiments shown in FIG. 6 and FIG. 7 , such as camping on the first cell, and/or other processes used to support the techniques described herein .
  • the processing unit 1020 may be configured to perform all operations except the transceiving operations performed by the terminal device in the embodiments shown in FIG. 14A and FIG. 14B , for example, according to the access information Operations such as accessing a second frequency, and/or other procedures for supporting the techniques described herein.
  • the transceiving unit 1010 can be used to perform all transceiving operations performed by the terminal device in the embodiment shown in FIG. 14A and FIG. 14B , such as receiving access information corresponding to the second frequency through the first frequency, and/or for supporting Other procedures for the techniques described herein.
  • the device may include a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit and/or a communication interface;
  • the processing unit may be an integrated processor, a microprocessor or an integrated circuit.
  • the device may perform functions similar to the processing module 810 in FIG. 8 .
  • the device includes a processor 1110 , a transmit data processor 1120 , and a receive data processor 1130 .
  • the processing module 810 in the above-mentioned embodiment may be the processor 1110 in FIG. 11, and performs corresponding functions;
  • the transceiver module 820 in the above-mentioned embodiment may be the transmitting data processor 1120 and the receiving data processor 1130 in FIG. 11, and complete the corresponding function.
  • a channel encoder and a channel decoder are shown in FIG. 11 , it can be understood that these modules do not constitute a limiting description of this embodiment, but are only illustrative.
  • FIG. 12 shows another form of this embodiment.
  • the processing device 1200 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication apparatus in this embodiment may serve as a modulation subsystem therein.
  • the modulation subsystem may include a processor 1203 and an interface 1204 .
  • the processor 1203 completes the functions of the above-mentioned processing module 810
  • the interface 1204 implements the functions of the above-mentioned transceiver module 820 .
  • the modulation subsystem includes a memory 1206, a processor 1203, and a program stored in the memory 1206 and executable on the processor. When the processor 1203 executes the program, the terminal device side in the foregoing method embodiment is implemented. Methods.
  • the memory 1206 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1200, as long as the memory 1206 can be connected to the The processor 1203 is sufficient.
  • the apparatus 1300 includes one or more radio frequency units, such as a remote radio unit (RRU) 1310 and one or more baseband units (BBU) (also referred to as digital units, digital units, DU) 1320 .
  • RRU 1310 may be referred to as a transceiver module, and the transceiver module may include a sending module and a receiving module, or the transceiver module may be a module capable of transmitting and receiving functions.
  • the transceiver module may correspond to the transceiver module 920 in FIG. 9 .
  • the transceiver module may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1311 and a radio frequency unit 1312 .
  • the RRU 1310 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals to baseband signals, for example, for sending indication information to terminal equipment.
  • the part of the BBU 1310 is mainly used to perform baseband processing, control the base station, and the like.
  • the RRU 1310 and the BBU 1320 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 1320 is the control center of the base station, and can also be referred to as a processing module, which can correspond to the processing module 910 in FIG. 9 , and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, and the like.
  • the BBU processing module
  • the BBU may be used to control the base station to perform the operation procedure of the network device in the foregoing method embodiments, for example, to generate the foregoing indication information and the like.
  • the BBU 1320 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as an LTE network) of a single access standard, or may respectively support a wireless access network of different access standards. Radio access network (such as LTE network, 5G network or other network).
  • the BBU 1320 also includes a memory 1321 and a processor 1322.
  • the memory 1321 is used to store necessary instructions and data.
  • the processor 1322 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation flow of the network device in the foregoing method embodiments.
  • the memory 1321 and the processor 1322 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.
  • Embodiments of the present application provide a first communication system.
  • the first communication system may include the terminal equipment involved in the above-mentioned embodiments shown in FIG. 4 and FIG. 5 and the access network equipment involved in the above-mentioned embodiments shown in FIG. 4 and FIG. 5 .
  • the terminal device is, for example, the terminal device 800 in FIG. 8
  • the access network device is, for example, the network device 900 in FIG. 9 .
  • Embodiments of the present application provide a second communication system.
  • the second communication system may include the terminal equipment involved in the above-mentioned embodiments shown in FIG. 6 and FIG. 7 and the access network equipment involved in the above-mentioned embodiments shown in FIG. 6 and FIG. 7 .
  • the terminal device is, for example, the terminal device 800 in FIG. 8
  • the access network device is, for example, the network device 900 in FIG. 9 .
  • Embodiments of the present application provide a third communication system.
  • the third communication system may include the terminal equipment involved in the above-mentioned embodiments shown in FIG. 14A and FIG. 14B and the access network equipment involved in the above-mentioned embodiments shown in FIG. 14A and FIG. 14B .
  • the terminal device is, for example, the terminal device 800 in FIG. 8
  • the access network device is, for example, the network device 900 in FIG. 9 .
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 4 and FIG. 5 provided by the above method embodiments. Processes related to the access network in the illustrated embodiment.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 4 and FIG. Processes related to the terminal device in the embodiment shown in 5.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 6 and FIG. 7 provided in the foregoing method embodiments. Processes related to access network equipment in the illustrated embodiment.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 6 and FIG. Processes related to the terminal device in the embodiment shown in 7.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium.
  • the computer program When the computer program is executed by a computer, the computer can implement FIG. 14A and FIG. 14B provided by the foregoing method embodiments. Processes related to access network equipment in the illustrated embodiment.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 14A and FIG. The process related to the terminal device in the embodiment shown in 14B.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 4 and FIG. 5 provided by the above method embodiments. The process related to the access network device in the embodiment.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 4 and FIG. 5 provided by the above method embodiments. Processes related to terminal equipment in the embodiment.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 6 and FIG. 7 provided by the above method embodiments. The process related to the access network device in the embodiment.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program.
  • the computer program When the computer program is executed by a computer, the computer can implement the methods shown in FIG. 6 and FIG. 7 provided by the above method embodiments. Processes related to terminal equipment in the embodiment.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the methods shown in FIG. 14A and FIG. 14B provided by the above method embodiments.
  • the process related to the access network device in the embodiment is not limited to a computer program product, where the computer program product is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the methods shown in FIG. 14A and FIG. 14B provided by the above method embodiments.
  • the process related to the access network device in the embodiment is not limited to the access network device, a computer program, or a computer.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the methods shown in FIG. 14A and FIG. 14B provided by the above method embodiments. Processes related to terminal equipment in the embodiment.
  • processors mentioned in the embodiments of the present application may be a CPU, and may also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), ready-made Field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGA Field programmable gate array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM enhanced synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SCRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components
  • the memory storage module
  • memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus 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 shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of 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 components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used 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 the various embodiments of the present application.
  • the aforementioned computer-readable storage medium can be any available medium that can be accessed by a computer.
  • the computer-readable medium may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (electrically erasable programmable read-only memory) read only memory, EEPROM), compact disc read-only memory (CD-ROM), universal serial bus flash disk (universal serial bus flash disk), removable hard disk, or other optical disk storage, disk storage A medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • RAM random access memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • universal serial bus flash disk universal serial bus flash disk
  • removable hard disk or other optical disk storage
  • disk storage A medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

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Abstract

本申请涉及一种通信方法及装置。所述方法包括：终端设备驻留在第一小区，响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，所述终端设备确定接入第二小区，其中，所述第一小区的频率和所述第二小区的频率不同。终端设备在第一小区可以不进行上行传输，或者仅接收多播业务，进而减少小区测量和波束选择的能量消耗，并且通信系统可以通过灵活部署提高资源利用率。

Description

一种通信方法及装置
本申请要求于2020年08月21日提交中国国家知识产权局、申请号为202010852143.0、申请名称为“一种通信方法及装置”的中国专利申请和于2020年9月29日提交中国国家知识产权局、申请号为202011052905.5、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
在新空口(new radio，NR)系统中，业务多样性与日俱增，包括面向增强型移动宽带(enhanced mobile broadband，eMBB)业务、超可靠低延时通信(ultra-reliability low-latency communication，URLLC)业务以及大规模机器通信(massive machine-type communication，mMTC)业务，多样化的业务需求对终端设备的要求也更高。例如，相对于eMBB业务，mMTC业务对终端设备的功耗要求更高。再如，有些机器类终端设备的部署环境不便于对供电系统进行调整，这种情况下，就要求机器类终端设备具有较低的功耗，以延长使用时间，适应业务需要。
而移动性管理是无线移动通信中的重要组成部分。它指的是为了保证网络与终端设备之间的通信链路不因终端设备的移动而中断所涉及到的相关操作的统称。根据终端设备的状态，移动性管理大致上可以分为无线资源控制(radio resource control，RRC)空闲态(RRC_idle state)移动性管理和RRC连接态(RRC_connected state)移动性管理两部分。在RRC空闲态下，移动性管理主要指的是小区选择/重选(cell selection/reselection)的过程，在RRC连接态下，移动性管理主要指的是小区切换(handover)过程。不论是小区选择/重选还是小区切换，都是基于终端设备的无线资源管理的(radio resource management,RRM)测量结果进行的。因此，RRM测量是移动性管理的基础。
RRM测量，包括测量终端设备的服务小区，还包括测量该服务小区的相邻小区(也简称为邻区)，例如测量与该服务小区属于同一通信系统的邻区，或者测量与该服务小区属于异系统的邻区。终端设备对服务小区的测量过程是始终进行的，对邻区的测量是需要在满足一定条件的前提下才启动。为了减小终端设备因测量所带来的功耗，针对邻区测量还设置了邻区测量放松条件，在满足邻区测量放松条件时终端设备可以不执行对邻区的测量。但是邻区放松测量仅适用于处于静止状态的终端设备，或者移动速度较慢的终端设备，如果终端设备发生移动，仍然需要进行邻区测量。
因此，如何进一步减小终端设备的能耗成为亟需解决的问题。
发明内容
本申请实施例提供一种通信方法及装置，用于减小终端设备的能耗。
第一方面，提供第一种通信方法，该方法包括：驻留在第一小区，响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区。其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。
该方法可由第一通信装置执行，第一通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第一通信装置为终端设备，或者为设置在网络设备中的用于实现终端设备的功能的芯片，或者为用于实现终端设备设备的功能的其他部件。在下文的介绍过程中，以第一通信装置是终端设备为例。
根据本申请实施例的方案，终端设备通过驻留在第一小区接收下行传输，而在接收寻呼消息，或者需要进行传输上行信息，或者需要传输非多播业务时，接入到第二小区，从而实现在第一小区内减少RRM测量和接收系统信息的开销，实现节电，而在第一小区获取业务，保证业务传输。
结合第一方面，在第一方面的某些实现方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
根据本申请实施例的方案，第一小区可以通过低频波束进行部署，进而实现通过少量的波束实现广泛的覆盖，进而，终端设备在第一小区驻留时，可以减少波束测量的开销，减少终端设备的能耗。
结合第一方面，在第一方面的某些实现方式中，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
根据本申请实施例的方案，终端设备可以在第一小区仅接收下行传输，或者仅接收非多播业务，而不进行接入，以减少RRM测量的开销，通信系统可以通过一个接入网设备实现广泛覆盖的下行传输或多播传输，提高通信效率，减少网络部署的开销。
结合第一方面，在第一方面的某些实现方式中，所述响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区包括：响应于确定有待传输的上行信息且确定所述第一小区不支持上行传输时，确定接入第二小区，或响应于确定有待传输的上行信息且确定所述待传输的上行信息为数据业务时，确定接入所述第二小区，或响应于确定有待传输的非多播业务且确定所述第一小区仅支持传输多播业务时，确定接入第二小区。
根据本申请实施例的方案，网络设备可以通过指示信息来指示终端设备是否在第一小区接入，所述指示信息可以承载于寻呼消息；当第一小区不支持下行传输时，终端设备在需要进行上行传输时确定接入第二小区；当第一小区不支持非多播业务传输时，终端设备在需要传输非多播业务时确定接入第二小区。进而，终端设备可以根据网络负载和业务需求来确定是否在第一小区接入，从而保证业务的正常进行。
结合第一方面，在第一方面的某些实现方式中，对所述第一小区的参考信号进行测量，当测量结果小于第一阈值时，确定接入所述第二小区。
根据本申请实施例的方案，终端设备可以在需要进行接入时，根据第一小区的参考信号质量确定是否接入第一小区，当终端设备距离第一接入网设备比较近时，可以从第一小区进行接入，所述第一接入网设备为第一小区对应的接入网设备。
结合第一方面，在第一方面的某些实现方式中，终端设备接收来自网络设备的指示信息，所述指示信息用于指示接入所述第二小区，或者指示不接入所述第一小区，或者指示根据所述第二频率选择小区进行接入，或者指示所述第一频率的频率优先级为最低优先级。
根据本申请实施例的方案，网络设备可以通过指示信息来指示终端设备是否接入第一小区，或者可以通过指示信息来自指定终端设备接入的小区或频率，从而实现根据网络负载动态调控，提高通信系统的资源利用率。
结合第一方面，在第一方面的某些实现方式中，终端设备根据所述第二频率进行小区选择，选择接入所述第二小区，或将所述第一频率的频率优先级降低至低于所述第二频率的频率优先级，触发对频率为所述第二频率的小区进行测量，并重选到所述第二小区。
根据本申请实施例的方案，终端设备可以根据频率优先级来调整小区的优先级，或者终端设备可以通过小区选择或小区重选来确定接入的小区。
结合第一方面，在第一方面的某些实现方式中，所述终端设备的服务小区为第三小区，所述第三小区的频率不同于所述第一频率。终端设备通过小区选择、小区重选或者切换，更换服务小区为所述第一小区。
根据本申请实施例的方案，当终端设备确定不需要接入时，可以通过小区选择、小区重选或者切换，更换服务小区为所述第一小区，进而实现节电。
结合第一方面，在第一方面的某些实现方式中，终端设备接收来自网络设备的第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。对所述第一频率进行测量并更换服务小区至所述第一小区。
根据本申请实施例的方案，网络设备可以通过第一消息来指示终端设备第一小区的优先级，以便终端设备及时变更服务小区为第一小区，进而终端设备可以减少测量的开销，通信系统可以平衡负载。
结合第一方面，在第一方面的某些实现方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
根据本申请实施例的方案，网络设备可以通过广播消息来同时指示多个终端设备第一小区的优先级或第一频率为节能模式频率，节省信令，或者网络设备可以针对单个终端设备来指示第一小区的优先级或第一频率为节能模式频率，实现灵活调度。
结合第一方面，在第一方面的某些实现方式中，根据所述终端设备的节能模式，所述终端设备的业务活跃程度，所述终端设备的电量和所述终端设备的接入时延中的至少一个确定更换服务小区为所述第一小区。
根据本申请实施例的方案，终端设备可以根据自身的节能需求和业务需求来确定是否进入第一小区实现节电。
第二方面，提供第二种通信方法，该方法包括：确定指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级。通过所述第一小区向终端设备发送所述指示信息。所述第一小区的频率为所述第一频率，所述第二小区的频率为所述第二频率，所 述第一小区为所述第一接入网设备的小区，所述第二小区为第二接入网设备的小区。
该方法可由第二通信装置执行，第二通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第二通信装置为网络设备，例如接入网设备，或者为设置在网络设备中的用于实现网络设备的功能的芯片，或者为用于实现网络设备的功能的其他部件。在下文的介绍过程中，以第二通信装置是网络设备为例。
结合第二方面，在第二方面的某些实现方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
根据本申请实施例的方案，第一小区可以通过低频波束进行部署，进而实现通过少量的波束实现广泛的覆盖，进而，终端设备在第一小区驻留时，可以减少波束测量的开销，减少终端设备的能耗。
结合第二方面，在第二方面的某些实现方式中，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
根据本申请实施例的方案，终端设备可以在第一小区仅接收下行传输，或者仅接收非多播业务，而不进行接入，以减少RRM测量的开销，通信系统可以通过一个接入网设备实现广泛覆盖的下行传输或多播传输，提高通信效率，减少网络部署的开销。
结合第二方面，在第二方面的某些实现方式中，所述指示信息承载于寻呼消息。
结合第二方面，在第二方面的某些实现方式中，向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
根据本申请实施例的方案，网络设备可以通过第一消息来指示终端设备第一小区的优先级，以便终端设备及时变更服务小区为第一小区，进而终端设备可以减少测量的开销，通信系统可以平衡负载。
结合第二方面，在第二方面的某些实现方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
根据本申请实施例的方案，网络设备可以通过广播消息来同时指示多个终端设备第一小区的优先级或第一频率为节能模式频率，节省信令，或者网络设备可以针对单个终端设备来指示第一小区的优先级或第一频率为节能模式频率，实现灵活调度。
第三方面，提供第三种通信方法，该方法包括：驻留在第一小区，响应于确定有待传输的非多播业务，确定接入第二小区。其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。
该方法可由第三通信装置执行，第三通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第三通信装置为终端设备，或者为设置在终端设备中的用于实现终端设备的功能的芯片，或者为用于实现终端设备的功能的其他部件。在下文的介绍过程中，以第三通信装置是终端设备为例。
根据本申请实施例的方案，终端设备可以在第一小区仅接收多播业务，而在需要传输 非多播业务时确定接入第二小区，从而在第一小区实现节电，从第二小区获取其他业务。
结合第三方面，在第三方面的某些实现方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
根据本申请实施例的方案，第一小区可以通过低频波束进行部署，进而实现通过少量的波束实现广泛的覆盖，进而，终端设备在第一小区驻留时，可以减少波束测量的开销，减少终端设备的能耗。
结合第三方面，在第三方面的某些实现方式中，所述第一小区仅支持传输多播业务。
根据本申请实施例的方案，终端设备可以在第一小区仅接收非多播业务，而不进行接入，以减少RRM测量的开销，通信系统可以通过一个接入网设备实现广泛覆盖的多播传输，提高通信效率，减少网络部署的开销。
结合第三方面，在第三方面的某些实现方式中，所述响应于确定有待传输的非多播业务，确定接入第二小区包括：响应于确定有待传输的非多播业务且确定所述第一小区仅支持传输多播业务时，确定接入第二小区。
结合第三方面，在第三方面的某些实现方式中，对所述第一小区的参考信号进行测量，当测量结果小于第一阈值时，确定接入所述第二小区。
根据本申请实施例的方案，终端设备可以在需要进行接入时，根据第一小区的参考信号质量确定是否接入第一小区，当终端设备距离第一接入网设备比较近时，可以从第一小区进行接入，所述第一接入网设备为第一小区对应的接入网设备。
结合第三方面，在第三方面的某些实现方式中，终端设备接收来自网络设备的指示信息，所述指示信息用于指示接入所述第二小区，或者指示不接入所述第一小区，或者指示根据所述第二频率选择小区进行接入，或者指示所述第一频率的频率优先级为最低优先级。
根据本申请实施例的方案，网络设备可以通过指示信息来指示终端设备是否接入第一小区，或者可以通过指示信息来自指定终端设备接入的小区或频率，从而实现根据网络负载动态调控，提高通信系统的资源利用率。
结合第三方面，在第三方面的某些实现方式中，终端设备根据所述第二频率进行小区选择，选择接入所述第二小区，或将所述第一频率的频率优先级降低至低于所述第二频率的频率优先级，触发对频率为所述第二频率的小区进行测量，并重选到所述第二小区。
根据本申请实施例的方案，终端设备可以根据频率优先级来调整小区的优先级，或者终端设备可以通过小区选择或小区重选来确定接入的小区。
结合第三方面，在第三方面的某些实现方式中，所述终端设备的服务小区为第三小区，所述第三小区的频率不同于所述第一频率。终端设备通过小区选择、小区重选或者切换，更换服务小区为所述第一小区。
根据本申请实施例的方案，当终端设备确定不需要接入时，可以通过小区选择、小区重选或者切换，更换服务小区为所述第一小区，进而实现节电。
结合第三方面，在第三方面的某些实现方式中，终端设备接收来自网络设备的第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所 述第一频率为节能模式频率。对所述第一频率进行测量并更换服务小区至所述第一小区。
根据本申请实施例的方案，网络设备可以通过第一消息来指示终端设备第一小区的优先级，以便终端设备及时变更服务小区为第一小区，进而终端设备可以减少测量的开销，通信系统可以平衡负载。
结合第三方面，在第三方面的某些实现方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
根据本申请实施例的方案，网络设备可以通过广播消息来同时指示多个终端设备第一小区的优先级或第一频率为节能模式频率，节省信令，或者网络设备可以针对单个终端设备来指示第一小区的优先级或第一频率为节能模式频率，实现灵活调度。
第四方面，提供第四种通信方法，该方法包括：确定指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级。通过所述第一小区向终端设备发送所述指示信息。所述第一小区的频率为所述第一频率，所述第二小区的频率为所述第二频率，所述第一小区为所述第一接入网设备的小区，所述第二小区为第二接入网设备的小区。
该方法可由第四通信装置执行，第四通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第四通信装置为网络设备，或者为设置在网络设备中的用于实现网络设备的功能的芯片，或者为用于实现网络设备的功能的其他部件。在下文的介绍过程中，以第四通信装置是网络设备为例。
结合第四方面，在第四方面的某些实现方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
根据本申请实施例的方案，第一小区可以通过低频波束进行部署，进而实现通过少量的波束实现广泛的覆盖，进而，终端设备在第一小区驻留时，可以减少波束测量的开销，减少终端设备的能耗。
结合第四方面，在第四方面的某些实现方式中，所述第一小区仅支持传输多播业务。
根据本申请实施例的方案，终端设备可以在第一小区仅接收非多播业务，以减少RRM测量的开销，通信系统可以通过一个接入网设备实现广泛覆盖的下行传输或多播传输，提高通信效率，减少网络部署的开销。
结合第四方面，在第四方面的某些实现方式中，所述指示信息承载于寻呼消息。
结合第四方面，在第四方面的某些实现方式中，向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
结合第四方面，在第四方面的某些实现方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
第五方面，提供了一种通信装置。例如该通信装置为如前所述的第一通信装置。所述第一通信装置用于执行上述第一方面或任一可能的实施方式中的方法。具体地，所述第一通信装置可以包括用于执行第一方面或任一可能的实施方式中的方法的模块，例如包括处 理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第一通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为网络设备。下面以第一通信装置是终端设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第一通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第一通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。其中，
所述处理模块，用于确定驻留在第一小区。
响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，所述处理模块还用于确定接入第二小区。
其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。
在一种可选的实施方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
在一种可选的实施方式中，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
在一种可选的实施方式中，所述确定接入第二小区包括：响应于确定有待传输的上行信息且确定所述第一小区不支持上行传输时，所述处理模块确定接入第二小区；或响应于确定有待传输的上行信息且确定所述待传输的上行信息为数据业务时，所述处理模块确定接入所述第二小区，或响应于确定有待传输的非多播业务且确定所述第一小区仅支持传输多播业务时，所述处理模块确定接入第二小区。
在一种可选的实施方式中，所述处理模块还用于对所述第一小区的参考信号进行测量，当测量结果小于第一阈值时，确定接入所述第二小区。
在一种可选的实施方式中，所述收发模块用于接收来自网络设备的指示信息，所述指示信息用于指示接入所述第二小区，或者指示不接入所述第一小区，或者指示根据所述第二频率选择小区进行接入，或者指示所述第一频率的频率优先级为最低优先级。
在一种可选的实施方式中，所述处理模块还用于根据所述第二频率进行小区选择，选择接入所述第二小区，或将所述第一频率的频率优先级降低至低于所述第二频率的频率优先级，触发对频率为所述第二频率的小区进行测量，并重选到所述第二小区。
在一种可选的实施方式中，所述终端设备的服务小区为第三小区，所述第三小区的频率不同于所述第一频率，所述处理模块用于通过小区选择、小区重选或者切换，更换服务小区为所述第一小区。
在一种可选的实施方式中，所述收发模块还用于接收来自网络设备的第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频 率为节能模式频率。所述处理模块还用于对所述第一频率进行测量并更换服务小区至所述第一小区。
在一种可选的实施方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
在一种可选的实施方式中，所述处理模块还用于根据所述终端设备的节能模式，所述终端设备的业务活跃程度，所述终端设备的电量和所述终端设备的接入时延中的至少一个确定更换服务小区为所述第一小区。
关于第五方面或各种可选的实施方式所带来的技术效果，可参考对于第一方面或相应的实施方式的技术效果的介绍。
第六方面，提供一种通信装置，例如该通信装置为如前所述的第二通信装置。所述第二通信装置用于执行上述第二方面或任一可能的实施方式中的方法。具体地，所述第二通信装置可以包括用于执行第二方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第二通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为网络设备。下面以第二通信装置是网络设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第二通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第二通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。在第六方面的介绍过程中，继续以所述第二通信装置是终端设备，以及，以所述处理模块和所述收发模块为例进行介绍。其中，
所述处理模块，用于确定指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级。
所述收发模块，用于通过所述第一小区向终端设备发送所述指示信息。所述第一小区的频率为所述第一频率，所述第二小区的频率为所述第二频率，所述第一小区为所述第一接入网设备的小区，所述第二小区为第二接入网设备的小区。
在一种可选的实施方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
在一种可选的实施方式中，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
在一种可选的实施方式中，所述指示信息承载于寻呼消息。
在一种可选的实施方式中，所述收发模块，还用于向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一 频率为节能模式频率。
结合第二方面，在第二方面的某些实现方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
关于第六方面或各种可选的实施方式所带来的技术效果，可参考对于第二方面或相应的实施方式的技术效果的介绍。
第七方面，提供一种通信装置，例如该通信装置为如前所述的第三通信装置。所述第三通信装置用于执行上述第三方面或任一可能的实施方式中的方法。具体地，所述第三通信装置可以包括用于执行第三方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第三通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为终端设备。下面以第三通信装置是终端设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第三通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第三通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。在第七方面的介绍过程中，继续以所述第三通信装置是终端设备，以及，以所述处理模块和所述收发模块为例进行介绍。其中，
所述处理模块，用于确定驻留在第一小区。
响应于确定有待传输的非多播业务，所述处理模块还确定接入第二小区。其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。
在一种可选的实施方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
在一种可选的实施方式中，所述第一小区仅支持传输多播业务。
在一种可选的实施方式中，响应于确定有待传输的非多播业务且确定所述第一小区仅支持传输多播业务时，所述处理模块确定接入第二小区。
在一种可选的实施方式中，所述收发模块对所述第一小区的参考信号进行测量，当测量结果小于第一阈值时，所述处理模块确定接入所述第二小区。
在一种可选的实施方式中，所述收发模块用于接收来自网络设备的指示信息，所述指示信息用于指示接入所述第二小区，或者指示不接入所述第一小区，或者指示根据所述第二频率选择小区进行接入，或者指示所述第一频率的频率优先级为最低优先级。
在一种可选的实施方式中，所述收发模块用于根据所述第二频率进行小区选择，选择接入所述第二小区，或将所述第一频率的频率优先级降低至低于所述第二频率的频率优先级，触发对频率为所述第二频率的小区进行测量，并重选到所述第二小区。
在一种可选的实施方式中，所述终端设备的服务小区为第三小区，所述第三小区的频 率不同于所述第一频率。所述收发模块用于通过小区选择、小区重选或者切换，更换服务小区为所述第一小区。
在一种可选的实施方式中，所述收发模块用于接收来自网络设备的第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。对所述第一频率进行测量并更换服务小区至所述第一小区。
在一种可选的实施方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
关于第七方面或各种可选的实施方式所带来的技术效果，可参考对于第三方面或相应的实施方式的技术效果的介绍。
第八方面，提供一种通信装置，例如该通信装置为如前所述的第四通信装置。所述第四通信装置用于执行上述第四方面或任一可能的实施方式中的方法。具体地，所述第四通信装置可以包括用于执行第四方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第四通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为网络设备。下面以第四通信装置是网络设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第四通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第四通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。在第八方面的介绍过程中，继续以所述第四通信装置是终端设备，以及，以所述处理模块和所述收发模块为例进行介绍。其中，
所述处理模块，用于确定指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级。
所述收发模块，用于通过所述第一小区向终端设备发送所述指示信息。所述第一小区的频率为所述第一频率，所述第二小区的频率为所述第二频率，所述第一小区为所述第一接入网设备的小区，所述第二小区为第二接入网设备的小区。
在一种可选的实施方式中，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率，
所述第一小区的覆盖范围大于所述第二小区的覆盖范围，
所述第一小区的波束数量少于所述第二小区的波束数量。
在一种可选的实施方式中，所述第一小区仅支持传输多播业务。
在一种可选的实施方式中，所述指示信息承载于寻呼消息。
在一种可选的实施方式中，所述收发模块还用于向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
在一种可选的实施方式中，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
关于第八方面或各种可选的实施方式所带来的技术效果，可参考对于第四方面或相应的实施方式的技术效果的介绍。
第九方面，提供一种通信装置，该通信装置例如为如前所述的第一通信装置。该通信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第一方面或各种可能的实施方式所描述的方法。或者，第一通信装置也可以不包括存储器，存储器可以位于第一通信装置外部。可选的，第一通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第一方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第一通信装置执行上述第一方面或任意一种可能的实施方式中的方法。示例性地，所述第一通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为终端设备。
其中，如果第一通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第一通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十方面，提供一种通信装置，该通信装置例如为如前所述的第二通信装置。该通信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第二方面或各种可能的实施方式所描述的方法。或者，第二通信装置也可以不包括存储器，存储器可以位于第二通信装置外部。可选的，第二通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第二方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第二通信装置执行上述第二方面或任意一种可能的实施方式中的方法。示例性地，所述第二通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为网络设备。
其中，如果第二通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第二通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十一方面，提供一种通信装置，该通信装置例如为如前所述的第三通信装置。该通信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第三方面或各种可能的实施方式所描述的方法。或者，第三通信装置也可以不包括存储器，存储器可以位于第三通信装置外部。可选的，第三通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第三方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第三通信装置执行上述第三方面或任意一种可能的实施 方式中的方法。示例性地，所述第三通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为终端设备。
其中，如果第三通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第三通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十二方面，提供一种通信装置，该通信装置例如为如前所述的第四通信装置。该通信装置包括处理器。可选的，还可以包括存储器，用于存储计算机指令。处理器和存储器相互耦合，用于实现上述第四方面或各种可能的实施方式所描述的方法。或者，第四通信装置也可以不包括存储器，存储器可以位于第四通信装置外部。可选的，第四通信装置还可以包括通信接口，用于与其他装置或设备进行通信。处理器、存储器和通信接口相互耦合，用于实现上述第四方面或各种可能的实施方式所描述的方法。例如，当处理器执行所述存储器存储的计算机指令时，使第四通信装置执行上述第四方面或任意一种可能的实施方式中的方法。示例性地，所述第四通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性的，所述通信设备为网络设备。
其中，如果第四通信装置为通信设备，通信接口例如通过所述通信设备中的收发器(或者，发送器和接收器)实现，例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者，如果第四通信装置为设置在通信设备中的芯片，那么通信接口例如为芯片的输入/输出接口，例如输入/输出管脚等，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。
第十三方面，提供一种芯片系统，所述芯片系统包括处理器和通信接口，所述处理器与所述通信接口耦合，用于实现上述第一方面或任一种可选的实施方式所提供的方法。
可选的，所述芯片系统还可以包括存储器，例如，所述处理器可以读取并执行所述存储器所存储的软件程序，以实现上述第一方面或任一种可选的实施方式所提供的方法。或者，所述存储器也可以不包括在所述芯片系统内，而是位于所述芯片系统外部，相当于，所述处理器可以读取并执行外部存储器所存储的软件程序，以实现上述第一方面或任一种可选的实施方式所提供的方法。
第十四方面，提供一种芯片系统，所述芯片系统包括处理器和通信接口，所述处理器与所述通信接口耦合，用于实现上述第二方面或任一种可选的实施方式所提供的方法。
可选的，所述芯片系统还可以包括存储器，例如，所述处理器可以读取并执行所述存储器所存储的软件程序，以实现上述第二方面或任一种可选的实施方式所提供的方法。或者，所述存储器也可以不包括在所述芯片系统内，而是位于所述芯片系统外部，相当于，所述处理器可以读取并执行外部存储器所存储的软件程序，以实现上述第二方面或任一种可选的实施方式所提供的方法。
第十五方面，提供一种芯片系统，所述芯片系统包括处理器和通信接口，所述处理器与所述通信接口耦合，用于实现上述第三方面或任一种可选的实施方式所提供的方法。
可选的，所述芯片系统还可以包括存储器，例如，所述处理器可以读取并执行所述存储器所存储的软件程序，以实现上述第三方面或任一种可选的实施方式所提供的方法。或 者，所述存储器也可以不包括在所述芯片系统内，而是位于所述芯片系统外部，相当于，所述处理器可以读取并执行外部存储器所存储的软件程序，以实现上述第三方面或任一种可选的实施方式所提供的方法。
第十六方面，提供一种芯片系统，所述芯片系统包括处理器和通信接口，所述处理器与所述通信接口耦合，用于实现上述第四方面或任一种可选的实施方式所提供的方法。
可选的，所述芯片系统还可以包括存储器，例如，所述处理器可以读取并执行所述存储器所存储的软件程序，以实现上述第四方面或任一种可选的实施方式所提供的方法。或者，所述存储器也可以不包括在所述芯片系统内，而是位于所述芯片系统外部，相当于，所述处理器可以读取并执行外部存储器所存储的软件程序，以实现上述第四方面或任一种可选的实施方式所提供的方法。
第十七方面，提供第一通信系统，该通信系统包括第五方面所述的通信装置、第九方面所述的通信装置或第十三方面所述的通信装置，以及包括第六方面所述的通信装置、第十方面所述的通信装置或第十四方面所述的通信装置。
第十八方面，提供第二通信系统，该通信系统包括第七方面所述的通信装置、第十一方面所述的通信装置或第十五方面所述的通信装置，以及包括第八方面所述的通信装置、第十二方面所述的通信装置或第十六方面所述的通信装置。
第十九方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第一方面或任意一种可能的实施方式中所述的方法。
第二十方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第二方面或任意一种可能的实施方式中所述的方法。
第二十一方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第三方面或任意一种可能的实施方式中所述的方法。
第二十二方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第四方面或任意一种可能的实施方式中所述的方法。
第二十三方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第一方面或的任意一种可能的实施方式中所述的方法。
第二十四方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第二方面或的任意一种可能的实施方式中所述的方法。
第二十五方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第三方面或的任意一种可能的实施方式中所述的方法。
第二十六方面，提供一种包含指令的计算机程序产品，所述计算机程序产品用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行上述第四方面或 的任意一种可能的实施方式中所述的方法。
第二十七方面，提供一种通信方法、相应的通信装置及通信系统。所述终端设备驻留在第一频率，通过第一频率接收对应于第二频率的接入信息，进一步，根据所述接入信息接入第二频率。该方案中，终端设备可以实现在RRC空闲态时驻留在第一频率，通过第一频率接收下行信息，进而节省RRM测量的消耗，当终端设备需要进行业务传输时，可以接入第二频率获取通信服务，其中所述第一频率不同于所述第二频率。通过在第一频率接收对应于第二频率的接入信息可以节省在第二小区接收广播消息，以及进行小区选择或者小区重选测量的开销，进而提高接入效率，并节省消耗。
在一种可选的实施方式中，所述终端设备向第二接入网设备发送探测信号。其中，所述探测信号为特定码序列或者参考信号。通过向第二接入网设备发送探测信号，可以使第二接入网设备确定终端设备的位置，进而确定所述终端设备接入第二频率所需要的接入辅助信息。
在一种可选的实施方式中，所述终端设备通过第一频率接收的接入信息包括至少一个第二小区配置信息，所述第二小区配置信息包括以下至少一种：所述第二小区的标识信息，例如物理小区标识(physical cell identifier,PCI)或者小区标识(cell indentifer,CI)，所述第二频率的频点信息，所述第二小区的参考信号的配置信息，所述第二小区的接入资源信息，所述第二小区的系统信息，所述探测信号的测量结果。
在一种可选的实施方式中，所述接入信息包括所述第二小区的标识信息，所述终端设备根据SSB或者CSI-RS获取小区定时后，读取SIB1获取随机接入配置信息，再根据随机接入配置信息进行随机接入。或者，所述接入信息中包含SIB1的调度配置信息，终端可以根据所述接入资源信息中SIB1的调度配置信息确定SIB1的调度，并根据所述调度接收SIB1。
另一种可选的实施方式中，所述接入信息包括随机接入资源的配置信息和第二小区的ID，其中，随机接入资源的配置信息包括所述随机接入资源的接入时机配置，频率配置，前导配置中的至少一个。
再一种可选的实施方式中，所述接入信息包括所述第二小区的第三消息(Msg3)的授权信息，终端设备可以根据Msg3的授权信息，向基站发送Msg3，而不需要在第二小区发起完整的随机接入过程，从而提高通信效率。进一步，终端设备可以在Msg3中包括偏好的波束标识，以请求接入网设备根据该波束标识调度所述终端设备。
第二十八方面，提供一种通信方法、相应的通信装置及通信系统。第二接入网设备接收来自终端设备的探测信号，并确定对应于所述终端设备的接入辅助信息，进一步，第二接入网设备向第一接入网设备发送所述接入辅助信息。该方案中，第二接入网设备可以通过检测来自终端设备的探测信号确定终端设备的位置，进而通过第一频率来向终端设备发送对应于第二频率的接入辅助信息，提高终端设备接入第二频率的效率。需要说明的是，第一接入网设备与第二接入网设备可以为同一设备，此时不需要执行两个接入网设备之间的消息发送。
在一种可选的实施方式中，所述接入辅助信息包括至少一个第二小区配置信息，所述第二小区配置信息包括以下至少一种：所述第二小区的标识信息，例如物理小区标识(physical cell identifier,PCI)或者小区标识(cell indentifer,CI)，所述第二频率的频点信息，所述第二小区的参考信号的配置信息，所述第二小区的接入资源信息，所述第二小区的系 统信息，所述探测信号的测量结果。
第二十九方面，提供一种通信方法、相应的通信装置及通信系统。第一接入网设备接收来自第二接入网设备的接入辅助信息，所述接入辅助信息用于终端设备接入第二频率，所述第一接入网设备根据所述接入辅助信息确定接入信息，并通过第一频率向终端设备发送所述接入信息。该方案中，第一接入网设备可以通过第一频率向终端设备发送对应于第二频率的接入信息，节省了终端设备接收广播消息或者做小区选择、小区重选的时延和消耗，提高通信效率。需要说明的是，第一接入网设备与第二接入网设备可以为同一设备，此时不需要执行两个接入网设备之间的消息发送。
在一种可选的实施方式中，第一接入网设备接收来自多个第二接入网设备的接入辅助信息，进一步，第一接入网设备从多个第二接入网设备中选择至少一个第二接入网设备，根据被选中的第二接入网设备对应的接入辅助信息确定接入信息。可选的，所述接入辅助信息中包括第二接入网设备对探测信号的测量结果，所述测量结果用于表征第二接入网设备接收探测信号的质量，那么第一接入网设备可以根据所述测量结果选择出与所述终端设备通信质量高的第二接入网设备，提高终端设备接入到第二频率之后的通信质量，并节约了终端设备进行小区重选的功耗。
第三十方面，提供一种通信装置。该通信装置可以为上述第二十七方面所述的终端设备，或者为配置在所述终端设备中的电子设备，或者为包括所述终端设备的较大设备。所述终端设备包括用于执行上述方法的相应的手段(means)或模块。例如，所述通信装置：包括处理单元(有时也称为处理模块)和收发单元(有时也称为收发模块)。其中，所述处理单元，用于通过所述收发单元驻留在第一频率，所述收发单元用于通过第一频率接收对应于第二频率的接入信息，所述处理单元还用于通过所述收发单元接入第二频率。
又例如，所述通信装置包括：处理器，与存储器耦合，用于执行存储器中的指令，以实现上述第二十七方面中终端设备所执行的方法。可选的，该通信装置还包括其他部件，例如，天线，输入输出模块，接口等等。这些部件可以是硬件，软件，或者软件和硬件的结合。
第三十一方面，提供一种通信装置。所述通信装置可以为上述第二十八方面或第二十九方面所述的第一接入网设备和/或第二接入网设备。所述通信装置具备上述第一接入网设备的功能，上述第二接入网设备的功能，或者，上述第一接入网设备和第二接入网设备的功能。所述第一接入网设备和/或第二接入网设备：例如为基站，或为基站中的基带装置。一种可选的实现方式中，所述通信装置包括基带装置和射频装置。另一种可选的实现方式中，所述通信装置包括处理单元(有时也称为处理模块)和收发单元(有时也称为收发模块)。
在一种可选的实现方式中，所述通信装置包括处理单元，用于与存储单元耦合，并执行存储单元中的程序或指令，使能所述通信装置执行上述第一接入网设备的功能，和/或第二接入网设备的功能。
第三十二方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序或指令，当其被运行时，使得上述各方面中终端设备，或第一接入网设备，或第二接入网设备所执行的方法被实现。
第三十三方面，提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得 上述各方面所述的方法被实现。
在本申请实施例中，通过在第一小区仅进行下行传输，或者仅进行非多播业务的传输，可以节省终端设备做RRM测量和接收系统信息的开销，实现节电。
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具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)终端设备，包括向用户提供语音和/或数据连通性的设备，具体的，包括向用户提供语音的设备，或包括向用户提供数据连通性的设备，或包括向用户提供语音和数据连通性的设备。例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音或数据，或与RAN交互语音和数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、车到一切(vehicle to everything，V2X)终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、签约单元(subscriber unit)、签约站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session  initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。
本申请实施例中，终端设备还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端设备。
本申请实施例中，用于实现终端设备的功能的装置可以是终端设备，也可以是能够支持终端设备实现该功能的装置，例如芯片系统，该装置可以被安装在终端设备中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例提供的技术方案中，以用于实现终端的功能的装置是终端设备为例，描述本申请实施例提供的技术方案。
2)网络设备，例如包括接入网(access network，AN)设备，例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备，或者例如，一种车到一切(vehicle-to-everything，V2X)技术中的网络设备为路侧单元(road side unit，RSU)。基站可用于将收到的空中帧与IP分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。RSU可以是支持V2X应用的固定基础设施实体，可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如，网络设备可以包括LTE系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(the 5th generation，5G)NR系统(也简称为NR系统)中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。
网络设备还可以包括核心网设备，核心网设备例如包括访问和移动管理功能(access and mobility management function，AMF)或用户平面功能(user plane function，UPF)等。本申请实施例由于主要涉及的是接入网，因此在后文中如无特殊说明，则所述的网络设备均是指接入网设备。
本申请实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支 持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中。在本申请实施例提供的技术方案中，以用于实现网络设备的功能的装置是网络设备为例，描述本申请实施例提供的技术方案。
3)RRC状态，终端设备有3种RRC状态：RRC连接态、RRC空闲态和RRC非激活态。
RRC连接(connected)态(或，也可以简称为连接态。在本文中，“连接态”和“RRC连接态”，是同一概念，两种称呼可以互换)：终端设备与网络建立了RRC连接，可以进行数据传输。
RRC空闲(idle)态(或，也可以简称为空闲态。在本文中，“空闲态”和“RRC空闲态”，是同一概念，两种称呼可以互换)：终端设备没有与网络建立RRC连接，基站没有存储该终端设备的上下文。如果终端设备需要从RRC空闲态进入RRC连接态，则需要发起RRC连接建立过程。
RRC非激活态(或，也可以简称为非激活态。在本文中，“去活动态”、“去激活态”、“非激活态”、“RRC非激活态”或“RRC去激活态”等，是同一概念，这几种称呼可以互换)：终端设备之前在锚点基站进入了RRC连接态，然后锚点基站释放了该RRC连接，但是锚点基站保存了该终端设备的上下文。如果该终端设备需要从RRC非激活态再次进入RRC连接态，则需要在当前驻留的基站发起RRC连接恢复过程(或者称为RRC连接重建立过程)。因为终端设备可能处于移动状态，因此终端设备当前驻留的基站与终端设备的锚点基站可能是同一基站，也可能是不同的基站。RRC恢复过程相对于RRC建立过程来说，时延更短，信令开销更小。但是基站需要保存终端设备的上下文，会占用基站的存储开销。
4)多播传输技术是一个发送方进行数据发送，而多个接收方对数据进行接收的传输技术；例如接入网设备发送数据，多个终端设备对数据进行接收。其中，一种可能的多播传输技术为单小区点到多点(single cell point to multipoint，SC-PTM)技术。在SC-PTM技术中，可以使用物理下行共享信道(physical downlink share channel，PDSCH)传输多播业务的数据。区别于承载单播业务的PDSCH，承载多播业务的PDSCH可以称为多播PDSCH。接入网设备可以预先配置多播业务与组无线网络临时标识(group-radio network temporary identity，G-RNTI)之间的关联关系，每个多播业务可以关联一个G-RNTI。
在单播传输中，接入网设备可以向终端设备发送承载于物理下行控制信道(physical downlink control channel，PDCCH)的控制信息(比如下行控制信息(downlink control information，DCI))，该DCI用于调度承载某一业务(该业务可以为单播业务或多播业务)的单播PDSCH，该DCI可以通过小区无线网络临时标识(cell-radio network temporary identity，C-RNTI)加扰；相应地，终端设备根据C-RNTI检测到DCI之后，可以根据该DCI包括的调度信息来接收单播PDSCH。
类似地，在多播传输中，接入网设备可以向多个对多播业务感兴趣的终端设备发送DCI，该DCI用于调度该多播业务的信息，该多播业务的信息可以承载于多播PDSCH中，该DCI可以通过该多播业务关联的G-RNTI加扰；相应地，多个终端设备根据该多播业务关联的G-RNTI检测到DCI之后，可以根据该DCI包括的调度信息来接收多播业务的信息。
5)移动性管理是无线移动通信中的重要组成部分。它指的是为了保证网络与终端设备之间的通信链路不因终端设备的移动而中断所涉及到的相关内容的统称。根据终端设备的 状态大致上可以分为RRC空闲态移动性管理和RRC连接态移动性管理两部分。在RRC空闲态下，移动性管理主要指的是小区选择/重选的过程，在RRC连接态下，移动性管理主要指的是小区切换过程。不论是小区选择/重选还是小区切换，都是基于测量结果进行的。因此，RRM测量是移动性管理的基础。
RRM测量，包括测量终端设备的服务小区，还包括测量邻区，例如测量相同的通信系统的邻区，或者测量异系统的邻区。根据测量所涉及到的层，可以将测量划分为物理层测量(层1测量)和RRC层测量(层3测量)这两种。
6)本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的大小、内容、顺序、时序、优先级或者重要程度等。例如，第一寻呼消息和第二寻呼消息，只是为了区分不同的寻呼消息，而并不是表示这两个寻呼消息的大小、内容、发送顺序、优先级或者重要程度等的不同。
本申请实施例提供的技术方案可以应用于第四代移动通信技术(the 4th generation，4G)系统中，例如LTE系统，或可以5G系统中，例如NR系统，或者还可以应用于下一代移动通信系统或其他类似的通信系统，具体的不做限制。
请参见图1，为本申请实施例的一种应用场景。图1包括网络设备1、网络设备2和终端设备。终端设备可以在接收来自网络设备1的信息的同时，与网络设备2进行通信。网络设备1例如工作在演进的通用移动通信系统陆地无线接入(evolved UMTS terrestrial radio access，E-UTRA)系统中，或者工作在NR系统中，或者工作在下一代通信系统或其他通信系统中。网络设备2例如工作在E-UTRA系统中，或者工作在NR系统中，或者工作在下一代通信系统或其他通信系统中。网络设备1和网络设备2可以工作在相同的通信系统中，例如均工作在E-UTRA系统中，或者，网络设备1和网络设备2也可以工作在不同的通信系统中，例如网络设备1工作在E-UTRA系统中，网络设备2工作在NR系统中。
请再参见图2，为本申请实施例的另一种应用场景。图2包括包括网络设备1、网络设备2和终端设备。其中，网络设备1的信号覆盖范围较大，网络设备2的覆盖范围较小。图2所示的通信场景可以理解为，从密集市区逐渐过渡到市区、县城、乡镇和农村，在密集市区中，人口和通信终端部署绵密，因此需要更多的和更细致的网络设备提供服务，而以农村为例的空旷场景下，可以通过少量的大型网络设备来实现覆盖，进而节省网络设备的部署开销。图中所示的终端设备同时处于网络设备1和网络设备2的服务区域内，可以实现在接收来自网络设备1的信息的同时，与网络设备2进行通信。具体的，网络设备1可以例如为广播电视发射塔，这种高功率的大塔具有覆盖范围广，天线高度高的特点，大塔的信号覆盖半径可以达到数十公里，网络设备2可以例如为普通功能的基站，为了便于 阐述，在本申请中将普通基站称为小塔。由于大塔的覆盖半径过大，终端设备在与大塔进行上行传输时的通信质量可能较低，或者，终端设备进行RRM测量的消耗会较高。
鉴于此，提供本申请实施例的技术方案。在本申请实施例中，在没有上行业务需求时，终端设备可以接收来自网络设备1的下行信息，而无需进行RRM测量，在有上行业务需求时，通过网络设备2获取服务。进一步，在大塔和小塔的通信场景中，终端设备可以在没有上行业务需求时，仅通过大塔接收下行业务或者多播业务，大塔的覆盖范围大，低频波束少，可以节省RRM测量的消耗，以达到节电的目的，而在有上行业务需求时，通过小塔进行通信，不影响通信质量。如图3所示，网络设备1的通信覆盖范围对应于第一频率层，其他网络设备的覆盖范围可以理解为第二频率层，其中，第一频率层中单小区的覆盖范围大于第二频率中单小区的覆盖范围，终端设备可以在没有上行业务需求时进入第一频率层，以实现节能，在有上行业务需求时退出第一频率层，进行通信。需要说明的是，进入第一频率层的条件和退出频率层的条件并不局限于是否存在上行业务需求，以上仅为一种示例，接下来将通过实施例详细阐述。
图1、图2或图3中的网络设备例如为基站。其中，网络设备在不同的系统对应不同的设备，例如在4G系统中可以对应eNB，在5G系统中对应5G中的接入网设备，例如gNB。当然本申请实施例所提供的技术方案也可以应用于未来的移动通信系统中，因此图2或图3中的网络设备也可以对应未来的移动通信系统中的网络设备。图1、图2或图3以网络设备是基站为例，实际上参考前文的介绍，网络设备还可以是RSU等设备。另外，图1、图2或图3中的终端设备以手机为例，实际上根据前文对于终端设备的介绍可知，本申请实施例的终端设备不限于手机。
为了便于介绍，在下文中，以方法由网络设备和终端设备执行为例。因为本申请实施例是以应用在图1或图2所示的网络架构为例。因此，如果将本申请实施例应用在图1所示的网络架构，则下文中所述的第一接入网设备可以是图1所示的网络架构中的网络设备1，第二接入网设备可以是图1所示的网络架构中的网络设备2，终端设备可以是图1所示的网络架构中的终端设备；或者，如果将本申请实施例应用在图2所示的网络架构，则下文中所述的第一接入网设备可以是图2所示的网络架构中的网络设备1，第二接入网设备可以是图2所示的网络架构中的网络设备2，终端设备可以是图2所示的网络架构中的终端设备。
实施例1
如图4所示，本申请实施例提供一种通信方法，包括步骤S401～S402。
S401、终端设备驻留在第一小区。
S402、响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区。
其中，第一小区和第二小区可以为不同小区，所述第一小区的下行频率为第一频率，所述第二小区的下行频率为第二频率。
或者，第一小区和第二小区可以为同一小区，例如，第一小区和第二小区具有相同的全球小区标识(cell global identifier,CGI)或者具有相同的上行频率。此时可以理解为该小区具有两个下行频率，分别为第一频率和第二频率，第一频率为用于终端设备驻留的频率，第二频率为终端设备接入所述小区后的下行参考频率。当终端设备处于节电状态时(例如 空闲态，或者非激活态，或者DRX状态)，可以驻留在第一频率，而在需要进行数据收发时，终端设备需要根据第二频率的参考信号进行定时同步以及RRM测量。
为了便于阐述以上两种情况，下文统一以第一小区来表述部署在第一频率上的小区，以第二小区来表述部署在第二频率的上第二小区应理解，第一小区和第二小区可以为同一小区，当两个小区是同一小区时，第一小区为小区的第一下行频率，第二小区为小区的第二下行频率。
通过本申请实施例提供的通信方法，终端设备可以实现在空闲态时驻留在第一小区，通过第一小区接收下行信息，进而节省RRM测量的消耗，当终端设备需要建立RRC连接时，可以接入第二小区获取通信服务，以满足终端设备的业务需求，其中所述第一小区的频率不同于所述第二小区的频率。
对于S401：终端设备驻留在第一小区。
所述第一小区为第一接入网设备的小区，所述终端设备处于RRC空闲态或者RRC非激活态，所述终端设备可以通过第一小区接收来自第一接入网设备的下行信息，例如，终端设备可以在第一小区接收多播信息，寻呼消息，以及系统信息等。
在一种可能的实现中，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。当终端设备驻留在第一小区时，仅接收下行信息或者仅接收多播业务，不进行RRM测量，进而实现节电。
对于S402：响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区。
其中，所述第二小区为第二接入网设备的小区，所述第二接入网设备不同于所述第一接入网设备，或者，第二接入网设备和第一接入网设备是同一接入设备。所述第一小区的频率为第一频率，所述第二小区的频率为第二频率，也就是说，所述第一小区的频率不同于所述第二小区的频率。可选的，第一频率为第一小区的频点，例如第一小区的SSB的频点，第二频率为第二小区的频点，例如第二小区的SSB的频点，或者，所述第一频率为一个频率范围，第一频率与第二频率不同可以理解为两个频率范围不完全相同，两个频率范围可能存在重叠。可选的，所述第一小区和所述第二小区满足以下至少一个：
(1)所述第一频率低于所述第二频率；
(2)所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
(3)所述第一小区的波束数量少于所述第二小区的波束数量。
具体的，关于第一小区和第二小区的部署可以参考所述第一接入网设备为广播电视发射塔(大塔)，所述第二接入网设备为普通基站(小塔)为例进行说明，可以理解的是，本申请实施例提供的通信方法同样适用于其他包括两个接入网设备的网络架构，例如，第一接入网设备可以为卫星上部署的小区，其小区覆盖面积可以达到几百平方公里，甚至几千平方公里，而第二接入网设备可以为常规小区，例如普通宏站小区，或者微站小区。可以理解的，在一些场景里，第一接入网设备和第二接入网设备可以为同一个接入网设备。当第一接入网设备和第二接入网设备为同一个接入网设备时，同一个接入网设备可以支持第一频率和第二频率，其中第一频率对应于第一小区，第二频率对应于第二小区。为了第一 小区能够覆盖更大范围，多个第一接入网设备可以采用单频网络(single frequuency network,SFN)方式，在第一频率发送相同的小区参考信号，合并成一个较大的对应于第一频率的小区，而每个第一接入网设备在第二频率发送不同的小区参考信号。这样第一频率的参考信号覆盖范围就会远大于第二频率的参考信号的覆盖范围。以下仅以大塔和小塔为例进行说明。
在第一种可能的实现中，所述第一频率低于所述第二频率，也就是说，大塔的发射频率低于小塔的发射频率，当传输频率越高时，信息的传输速率越快，但是由于载波频率较高时，会使得其发射的无线信号在空间传播过程中经历更加严重的衰落，甚至在接收端难以检测出该无线信号，因此高频信号的穿透力差，传输距离短，只能在靠近基站很近且遮挡物少的地方通信，而低频信号可以通过少量的波束实现更大范围的网络覆盖，因此，在大塔的服务第一小区内，终端设备可以减少进行RRM测量的开销和波束测量的开销。
在第二种可能的实现中，所述第一小区的覆盖范围大于所述第二小区的覆盖范围，通过较高的天线部署和/或较大的信号发射功率，大塔可以实现更大范围的通信覆盖，由于第一小区的半径比较大，可以减少终端设备进行小区重选的次数，进而减少终端设备进行小区测量和接收系统信息(system information,SI)的开销。
在第三种可能的实现中，所述第一小区的波束数量少于所述第二小区的波束数量，进而可以减少终端设备进行波束(beam)选择和监听寻呼(paging)消息的开销。
在本申请实施例中，第一频率对应的第一频率层可以理解为节能层，所述第一频率层包括至少一个第一小区，在节能层中，终端设备可以仅接收下行传输，或者仅接收多播业务，或者通过信号测量确定是否进行上行传输。所述第一频率层的传输特性也可以理解为第一小区的传输特征，也就是说，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。具体的，第一频率对应的第一接入网设备可以例如为大塔，在大塔提供服务的第一频率层中，由于大塔覆盖范围的半径较大，终端设备做上行传输的消耗较大，因此终端设备可以通过仅接收下行业务或者仅接收多播业务来节省能量，而在需要进行上行传输或者需要接收非多播业务时离开第一频率层。
关于第一频率层支持的传输特征可以通过以下几种实现为例来说明：
在第一种可能的实现中，第一频率层对应的第一小区不支持上行传输，也就是说，第一小区层仅支持下行传输。终端设备在第一频率层中仅接收来自第一接入网设备的下行信息，当终端设备需要进行上行传输时可以离开第一频率层，进一步，可以通过其他接入网设备获取服务，例如，通过第二小区进行上行传输。具体的，第一频率可以部署在仅支持下行传输(downlink only,DL only)的频段或者频率上，例如，网络设备可以规划第一频率集合作为DL only的频段，所述第一频率集合包括至少一个第一频率。
在第二种可能的实现中，第一频率层对应的第一小区支持上行传输，终端设备可以在第一频率层与第一接入网设备建立连接。终端设备需要判断是否在第一小区进行接入，避免第一小区半径较大时，进行上行传输的消耗过大或者传输质量过差。
以上介绍了第一频率层的传输特征，可以理解的是，第一频率层包括至少一个第一小区，因此以上说明的第一频率层的传输特征可以理解为第一小区的传输特征。接下来说明终端设备确定是否接入第一小区的方法。
需要说明的是，在本申请的一些实施例中，所述“响应于”可以被理解为触发条件。也就是说，从所述第一小区接收寻呼消息时触发终端设备确定目标接入小区为第二小区，或者存在待传输的上行信息时触发终端设备确定目标接入小区为第二小区，或者存在待传输的非多播业务时触发终端设备确定目标接入小区为第二小区。S402还可以理解为，当满足第一条件时，所述终端设备确定接入第二小区，所述第一条件包括以下至少一个：
(1)接收来自接入网设备的指示信息，可选的，所述指示信息承载于寻呼信息。
(2)有待传输的上行信息。
(3)有待传输的非多播业务。
结合图3中所示的离开第一频率层，所述第一条件可以理解为触发终端设备离开第一频率层的条件，响应于满足第一条件，终端设备确定离开第一小区，进一步，终端设备确定接入第二小区。可选的，步骤S402可以理解为包括步骤S4021和S4022。
S4021：终端设备确定需要进行接入。
S4022：终端设备确定目标接入小区为第二小区，或者终端设备确定接入第一小区。
具体的，可以参考以下几种实现来理解终端设备确定需要接入的方法：
在第一种可能的实现中，终端设备在第一小区接收来自第一接入网设备的第一指示信息，所述第一指示信息用于指示终端设备进行接入，进一步，终端设备还接收来自第一接入网设备的第二指示信息，所述第二指示信息用于指示终端设备接入第二小区，其中所述第一指示信息和/或第二指示信息可以承载于寻呼消息，终端设备根据寻呼消息中的指示信息确定是否从第一小区接入。具体的，所述第一指示信息和/或第二指示信息来自接入网设备，所述第二指示信息指示终端设备从第一小区接入，或者指示终端设备不从第一小区接入，或者指示终端设备从第二小区接入，或者指示终端设备根据第二频率选择小区进行接入，或者指示终端设备所述第一频率的频率优先级为最低优先级。通过显示的指示信息，接入网设备可以根据网络负载实时地灵活调度终端设备是否接入第一小区，进而提升通信系统的可靠性。具体的，关于第二指示信息，请参考以下三种设计为例来理解：
在第一种设计中，第二指示信息指示终端设备从第一小区接入，或者指示终端设备不从第一小区接入。例如，终端设备接收来自接入网设备的寻呼消息，所述寻呼小区包括允许接入指示，那么终端设备确定从第一小区接入；又例如，终端设备接收来自接入网设备的寻呼消息，所述寻呼小区包括重定向指示和/或第二小区标识，那么终端设备确定从第二小区接入。其中，所述第二指示信息可以为一个比特(bit)值或者一个bit状态，进一步，可以为寻呼消息中的预留bit，进而，可以通过少量的信令消耗实现灵活调度。
在第二种设计中，第二指示信息指示终端设备根据第二频率选择小区进行接入。例如，终端设备接收来自第一接入网设备的第二指示信息，所述第二指示信息包括第二频率的值，终端设备可以根据第二频率在第二频率层进行小区搜索或者小区选择，选择接入第二小区，进一步，在第二小区发起业务。通过这种设计，网络设备可以根据网络负载来确定适合的小区，并且明确指示终端设备进行接入，以提高网络资源利用率。
在第三种设计中，第二指示信息指示终端设备所述第一频率的频率优先级为最低优先级。例如，终端设备接收来自第一接入网设备的第二指示信息，所述第二指示信息用于指示第一频率的频率优先级，终端设备可以根据第一频率的频率优先级以及优先级列表，来 调整第一小区的优先级，当第一频率的频率优先级低于第二频率的频率优先级时，终端设备可以触发针对第二频率的小区测量和/或小区重选，进一步，重选到所述第二小区，其中，所述优先级列表为预定义的或者预配置的。又例如，第二指示信息指示第一频率的频率优先级最低，那么终端设备可以直接触发针对第二频率的小区测量和/或小区重选。需要说明的是，在本申请实施例中，当终端设备确定不在第一频率接入时，可以根据预配置或者预定义的备选频率进行小区测量或者小区选择，或者小区重选，其中，备选频率可以为第二频率，第二频率为不同于第一频率的频率。终端设备可以通过频率优先级来确定第一小区是否适合接入，并且通过优先级列表可以确定至少一个备选频率，进而根据通信系统的实时负载情况，来确定适合的小区进行接入，以保证后续业务的传输可靠性。
相应的，接入网设备在确定终端设备需要进行接入时，可以通过第一指示信息和/或第二指示信息来通知终端设备，进一步，接入网设备可以根据网络负载情况确定终端设备是否从第一小区接入，例如，接入网设备确定当前进行的下行传输类型，当下行业务的传输量满足第二阈值时，确定终端设备可以在第一小区接入，否则，确定终端设备不在第一小区接入，其中第二阈值可以为预定义的。又例如，接入网设备还可以根据第一频率层整体的传输量确定终端设备是否从第一小区接入，当第一频率层的传输总量满足第三阈值时，确定终端设备可以在第一小区接入，否则，确定终端设备不在第一小区接入，其中第三阈值可以为预定义的。可选的，所述方法还包括步骤S401：接入网设备确定第二指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级。可选的，所述方法还包括步骤S402：所述接入网设备通过所述第一小区向终端设备发送所述指示信息。具体的，第一接入网设备可以向终端设备发送第二指示信息，所述第二指示信息的含义可以参考上述相关说明。
在第二种可能的实现中，终端设备确定有待传输的上行信息，进而确定需要进行接入，进一步，终端设备可以根据第一小区的传输特征和/或待传输业务的类型确定是否从第一小区接入。以根据实时的网络负载情况，确定适合的小区进行接入。具体的，请参考以下三种设计为例来理解：
在第一种设计中，所述第一小区不支持上行传输，当终端设备确定有待传输的上行信息时，确定接入第二小区。也就是说，第一小区仅支持下行传输，终端设备可以在第一小区仅接收下行传输，而不做上行传输，当第一小区覆盖范围较大时，可以避免上行传输消耗，实现节电。
在第二种设计中，第一小区支持上行传输，终端设备根据参考信号测量来确定是否在第一小区进行接入，或者说，终端设备可以根据参考信号测量来确定是否根据第一频率接入，例如，终端设备对参考信号进行测量得到参考信号接收功率(reference signal received power,RSRP)值，当确定测量结果大于第一阈值时，终端设备确定从第一小区接入，当测量结果小于第一阈值时，确定接入所述第二小区，所述第一阈值为预定义的或者预配置的，也就是说，当终端设备距离第一接入网设备比较近时，接收参考信号的质量可以满足需求，相应的，终端设备可以承担上行传输的消耗，因此终端设备确定从第一小区接入；当确定所述RSRP值不满足第一阈值时，终端设备确定不从第一小区接入，或者，终端设备确定从第二小区接入，所述第二小区为第二接入网设备的小区。通过实时的参考信号测量，终端 设备可以确定在当前位置传输消耗最小的小区进行接入，或者确定在传输消耗可以接受的小区接入，而不需要通过网络设备指示，可以避免由于终端设备移动，而导致的网络设备需要频繁指示，或者指示的接入小区不适宜的问题，进而在保证传输质量的同时进一步实现节电。
在第三种设计中，第一小区支持上行传输，终端设备根据触发接入的业务类型来确定是否从第一小区接入。例如，当终端设备确定需要发送上行信息为信令时，确定从第一小区接入，因为，通常信令需要传输的内容比较少，占用的传输资源也较少，可以快速发送完毕，消耗功率也较少，因此终端设备在第一小区可以进行上行信令传输。当终端设备确定需要发送上行信息为数据业务时，确定不从第一小区接入，进一步，终端设备可以通过小区重选或者小区选择来确定接入第二小区。通过这种设计，可以避免网络设备的指示，并且避免额外的测量消耗，快速确定是否从第一小区接入，提高通信效率。
在第三种可能的实现中，终端设备确定有待传输的非多播业务，进而确定需要进行接入，进一步，终端设备可以根据第一小区的传输特征和/或待传输业务的类型确定是否从第一小区接入。这种情况下，第一频率层对应的第一小区仅支持传输非多播业务，因此，当终端设备确定有待传输的非多播业务时需要进行接入，终端设备确定是否从第一小区接入的方法可以参考针对在第二种可能的实现中的三种设计的相关说明，此处不再赘述，关于第一频率层对应的第一小区仅支持传输非多播业务的场景，将在实施例2中详细说明。
通过本申请实施例提供的通信方法，网络设备可以通过部署节能层来使实现终端设备仅在第一小区接收小功率传输，节省功率开销，而在需要进行大功率的传输时接入第二小区，进而实现终端设备的节电，并且，当第一小区的半径大于第二小区的半径时，相对于第二小区，终端设备在第一小区中移动时可以减少测量消耗，因此，可以实现终端设备在较大范围内的保持较低消耗，进一步节省终端设备的消耗。
可选的，所述方法还包括S403：终端设备接入第二小区，进一步，终端设备在第二小区进行业务传输。
可选的，所述方法还包括步骤S404：所述终端设备的服务小区为第三小区时，通过小区选择、小区重选或者切换，更换服务小区为所述第一小区，所述第三小区的频率不同于所述第一频率。
其中，所述第三小区可以理解为第二频率层的一个小区，第三小区不同于第一小区，第三小区与第二小区可以相同，也可以不相同。当终端设备确定接下来一段时间希望节省功率开销，那么终端设备可以离开第二频率层，进入节能层(第一频率层)，这里第二频率层应理解为第一频率层以外的其他小区组成的小区集合，第二频率层不限定为一个频率，也可以包括多个频率，其中包括第二小区和第三小区，接下来以终端设备的服务小区为第三小区为例进行说明。需要说明的是，本申请实施例不限定所述步骤S404的执行顺序，如图5示出的一种可能的实现中，所述S404在S401之前执行。
结合图3所示的进入第一频率层，触发终端设备进入第一频率层的条件可以参考以下几种实现为例来理解：
在第一种可能的实现中，终端设备接收来自接入网设备的第一消息，所述第一消息指示第一频率的频率优先级。例如，所述第一消息指示第一频率的频率优先级为最高优先级，终端设备触发向第一频率层的小区重选。
在第二种可能的实现中，终端设备接收来自接入网设备的第一消息，所述第一消息指示第一频率为节能模式频率。终端设备确定节能模式频率之后可以结合当前的业务需求和/或节能需求确定切换服务小区为第一小区，例如，终端设备确定。
可选的，上述第一消息和/或第二消息可以为广播消息或者专用的RRC消息，当接入网设备要向多个终端设备发送节能层信息时，可以通过广播消息来发送，以节省信令消耗，当接入网设备需要针对终端设备发送指定的节能层信息时，可以通过专用信令来发送，进而实现针对终端设备的灵活配置。相应的，接入网设备可以向终端设备指示节能层的频率优先级信息，可选的，所述方法还包括步骤S4041：接入网设备向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。进而实现根据网络负载情况动态调度终端设备进入节能层。
在第三种可能的实现中，终端设备根据节能需求确定更换服务小区为第一小区。例如，所述终端设备处于节能模式，那么终端设备可以将节能层(第一频率层)对应的第一频率的频率优先级调整为最高优先级，进而触发对于第一频率层的小区重选。
在第四种可能的实现中，终端设备根据业务需求确定更换服务小区为第一小区。例如，终端设备确定在第一时长中的业务活性低于一定门限时更换服务小区为第一小区，其中，所述业务活性可以理解为业务活跃程度，比如两次业务之间的间隔，间隔越久，业务活性越低。又例如，终端设备确定在接下来的第一时长中的业务要求低于一定门限时更换服务小区为第一小区，所述业务要求包括接入时延要求，当终端设备需要满足的接入时延高于一定门限值时，可以确定更换服务小区为第一小区，例如，第一小区可以提供接入时延为3～5毫秒(millisecond,ms)的通信服务，那么可以将门限值设定为5ms，当终端设备需要满足接入时延小于10ms时，可以更换服务小区为第一小区。相应的，当终端设备需要满足的接入时延低于于一定门限值时，从节能层返回第二频率层需要一段时间，因此终端设备可以不驻留在节能层，以满足接入时延的要求，其中，所述第一时长可以为预定义的，第一时长可以为一段时间，或者为一个时间阶段。
在第五种可能的实现中，终端设备根据电量确定更换服务小区为第一小区。例如，终端设备确定当前电量低于第二阈值时，或者终端设备处于低电量模式时，更换服务小区为第一小区，以节约电量，所述第二阈值可以为预设置的，或者终端设备可以动态设置的。
在可能的场景下，终端设备可以结合应用以上任意两种或者全部方式来确定更换服务小区为第一小区。
以上触发终端设备确定更换服务小区为第一小区的条件可以概括为第二条件。当满足第二条件时，所述终端设备确定更换服务小区为第一小区，所述第二条件包括以下至少一个：
(1)接收来自接入网设备的第一消息，所述第一消息指示第一频率的频率优先级，或者，指示第一频率为节能模式频率；
(2)确定所述终端设备需要节能；
(3)确定业务活性低或业务要求低；
(4)确定电量低于第二阈值。
通过本申请实施例提供的通信方法，可以实现终端设备在希望节省功率开销时(例如，仅接收下行传输)，驻留在第一频率层(节能层)，而在需要大功率传输时(例如需要上行 传输)，接入第二频率层，以实现在满足业务需求的同时节约电量，延长业务持续时间。并且，接入网设备通过网络消息可以实现灵活、动态的调度终端设备进入或者离开第一频率层；终端设备也可以根据自身的节电状态和/或业务需求来确定是否接入第一频率层，进而实现结合网络负载来动态调整，提高通信系统资源利用率和通信稳定性。
进一步，本申请实施例的技术效果并不局限于节能场景，例如，网络可以部署第一频率层仅用于传输多播业务，通过覆盖面积更大的小区来发送多播业务，可以提高传输效率，节省网络部署成本。接下来，将通过实施例2来详细说明。
实施例2
如图6所示，本申请实施例提供一种通信方法，包括步骤S601～S602。
S601、终端设备驻留在第一小区。
S602、响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的非多播业务，确定接入第二小区。
其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。在本实施例中，关于第一小区和第二小区、第一频率和第二频率以及第一接入网设备和第二接入网设备的定义可以参考实施例1中的相关说明，此处不再赘述。
通过本申请实施例提供的通信方法，终端设备可以实现在空闲态时驻留在第一小区，通过第一小区接收多播业务，进而节省RRM测量的消耗，当终端设备需要接收非多播业务，或者需要进行上行传输时，可以接入第二小区获取通信服务，其中所述第一小区的频率不同于所述第二小区的频率。
其中，所述第二小区为第二接入网设备的小区，所述第二接入网设备不同于所述第一接入网设备。所述第一小区的频率为第一频率，所述第二小区的频率为第二频率，也就是说，所述第一小区的频率不同于所述第二小区的频率。可选的，所述第一小区和所述第二小区满足以下至少一个：
(1)所述第一频率低于所述第二频率；
(2)所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
(3)所述第一小区的波束数量少于所述第二小区的波束数量。
关于第一小区和第二小区传输特征的具体含义可以参考步骤S402中的相关说明，此处不再赘述。可以理解的是，通过较低的频率和/或较广泛的覆盖范围来部署第一小区，接入网设备可以通过少量的基站部署来实现广覆盖的多播传输，节省部署网络架构的成本，并且提高多播业务的传输效率。
关于第一频率层的对应的第一小区支持的传输特征可以参考步骤S402中的相关说明，此处不再赘述。
对于实施例2，终端设备可以在满足第一条件时，接入第二小区，所述第一条件包括以下至少一个：
(1)接收来自接入网设备的指示信息，可选的，所述指示信息承载于寻呼信息。
(2)有待传输的非多播业务。
可选的，步骤S602可以理解为包括步骤S6021和S6022。
S6021：终端设备确定需要进行接入。
S6022：终端设备确定目标接入小区为第二小区，或者终端设备确定接入第一小区。
具体的，可以参考以下几种实现来理解终端设备确定需要接入的方法：
在第一种可能的实现中，终端设备在第一小区接收来自第一接入网设备的第一指示信息，所述第一指示信息用于指示终端设备进行接入，进一步，终端设备还接收来自第一接入网设备的第二指示信息，所述第二指示信息用于指示终端设备接入第二小区，其中所述第一指示信息和/或第二指示信息可以承载于寻呼消息，终端设备根据寻呼消息中的指示信息确定是否从第一小区接入。具体的，所述第一指示信息和/或第二指示信息来自接入网设备，所述第二指示信息指示终端设备从第一小区接入，或者指示终端设备不从第一小区接入，或者指示终端设备从第二小区接入，或者指示终端设备根据第二频率选择小区进行接入，或者指示终端设备所述第一频率的频率优先级为最低优先级。通过显示的指示信息，接入网设备可以根据网络负载实时地灵活调度终端设备是否接入第一小区，进而提升通信系统的可靠性。具体的，关于第二指示信息，可以参考步骤S402中的相关说明，此处不再赘述。相应的，接入网设备在确定终端设备需要进行接入时，可以通过第一指示信息和/或第二指示信息来通知终端设备。
在第二种可能的实现中，终端设备确定有待传输的非多播业务，进而确定需要进行接入，进一步，终端设备可以根据第一小区的传输特征和/或待传输业务的类型确定是否从第一小区接入。
可选的，所述第一小区不支持上行传输，当终端设备确定有待传输的非多播时，确定接入第二小区。也就是说，第一小区仅支持传输多播业务，终端设备可以在第一小区仅接收多播业务，而不做上行传输，当第一小区覆盖范围较大时，可以避免上行传输消耗，实现节电。
可选的，所述方法还包括S603：终端设备接入第二小区，进一步，终端设备在第二小区进行业务传输。
可选的，所述方法还包括步骤S604：所述终端设备的服务小区为第三小区时，通过小区选择、小区重选或者切换，更换服务小区为所述第一小区，所述第三小区的频率不同于所述第一频率。
其中，所述第三小区可以理解为第二频率层的一个小区，第三小区不同于第一小区，第三小区与第二小区可以相同，也可以不相同。当终端设备工作在第二频率层时，如果确定接下来一段时间内仅需要接收多播业务，没有其他业务需求，那么终端设备可以离开第二频率层，进入节能层(第一频率层)，这里第二频率层应理解为第一频率层以外的其他小区组成的小区集合，其中包括第二小区和第三小区，具体的，终端设备触发终端设备进入第一频率层的方法可以参考上述步骤S404中的相关说明，此处不再赘述。需要说明的是，本申请实施例不限定所述步骤S604的执行顺序，如图7示出的一种可能的实现中，所述S604在S601之前执行。
通过本申请实施例提供的通信方法，可以在实施例1实现节电的基础上，将第一频率层配置为仅用于传输多播业务，进一步提高多播业务的传输效率，网络设备可以仅通过第一接入网设备为大量终端设备提供广播多播服务，而不需要通过多个接入网设备同时发送，进而提高通信系统的资源利用率。
实施例3
如图14A所示，本申请实施例提供一种通信方法，包括步骤S1401～1403。
S1401、终端设备驻留在第一频率。
S1402、所述终端设备通过第一频率接收对应于第二频率的接入信息。
S1403、所述终端设备根据所述接入信息接入第二频率。
对于S1401：终端设备驻留在第一频率。
所述终端设备可以通过第一频率接收下行信息，例如，终端设备可以在第一频率接收多播信息，寻呼消息，以及系统信息，随机接入响应信息。
在一种可能的实现中，所述UE在第一频率驻留在第一小区内，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。例如，当所述终端设备处于RRC空闲态或者RRC非激活态时，通过第一频率仅接收下行信息或者仅接收多播业务，不进行RRM测量或者减少RRM测量，进而实现节电。
对于S1402：所述终端设备通过第一频率接收对应于第二频率的接入信息。
其中，所述接入信息为所述终端设备在所述第二频率进行接入时所需要的配置信息。
对于S1403:所述终端设备根据所述接入信息接入第二频率。
可选的，在步骤S1402或S1403之前，终端设备响应于从所述第一频率的第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定需要发起上行接入。
在本实施例中，关于第一小区和第二小区、第一频率和第二频率以及第一接入网设备和第二接入网设备的定义可以参考实施例1中的相关说明，应理解，第一频率对应于第一小区，第二频率对应于第二小区，所述驻留在第一频率可以理解为驻留在第一小区，所述接入第二频率可以理解为接入第二小区，其中，第一小区和第二小区可以属于相同的接入网设备，本申请不限定第一小区和第二小区的存在形式，第一小区和第二小区可以有相同的物理小区标识(physical cell identifier,PCI)，仅为了表述方便而区分命名。
通过本申请实施例提供的通信方法，终端设备可以实现在RRC空闲态时驻留在第一频率，通过第一频率接收下行信息，进而节省RRM测量的消耗，当终端设备需要进行业务传输时，可以接入第二频率获取通信服务，以满足终端设备的业务需求，其中所述第一频率不同于所述第二频率。通过在第一频率接收对应于第二频率的接入信息可以节省在第二小区接收广播消息，以及进行小区选择或者小区重选测量的开销，进而提高接入效率，并节省消耗。
具体的，如图14B所示，接入网设备向终端设备发送所述接入信息的过程还可以包括步骤S1404～1407，需要说明的是步骤S1404～1407均为可选步骤。
S1404：终端设备向第二接入网设备发送探测信号。相应的，所述第二接入网设备接收来自所述终端设备的探测信号。
S1405：所述第二接入网设备确定对应于所述终端设备的接入辅助信息。
S1406：所述第二接入网设备向第一接入网设备发送所述接入辅助信息。应理解，当所述第一接入网设备与所述第二接入网设备为同一设备时，不需要执行步骤S1406。
S1407：所述第一接入网设备向所述终端设备发送对应于第二频率的接入信息。
对于步骤S1404：终端设备向第二接入网设备发送探测信号。相应的，所述第二接入网设备接收来自所述终端设备的探测信号。
其中，所述探测信号为特定码序列或者参考信号。可选的，所述探测信号为随机接入信道(random access channel,RACH)前导序列，探测资源为RACH资源。相应的，第二接入网设备接收来自终端设备的探测信号，根据所述探测信号确定所述终端设备对应于第二频率的接入辅助信息。例如，第二接入网设备接收来自终端设备的参考信号之后，可以确定所述终端设备的位置，进而确定所述终端设备与第二接入网设备建立连接所需要的接入信息。在一种可能的实现中，多个第二接入网设备可以配置相同的探测资源集合，所述探测资源集合包括至少一组探测资源，其中，所述探测资源包括探测码序列，参考信号，以及所述参考信号的频率资源中的至少一个。所述探测资源集合可以预先配置在终端设备中，也可以由接入网设备通过第一频率或者第二频率发送给终端设备。终端设备根据探测资源集合确定一个探测信号，通过第三频率向第二接入网设备发送探测信号，所述第三频率为终端设备与第二小区进行通信的上行频率，其中，所述第三频率的配置信息可以是通过第一小区接收的，那么当终端设备以节能状态驻留在第一小区时，可以通过第一小区接收第三频率的配置信息，进而直接在第三频率向第二接入网设备发送上行信息，而节省了从第二小区获取第三频率上部署的小区的配置信息以及接入信息的能量和时延消耗。
对于步骤S1405：所述第二接入网设备确定对应于所述终端设备的接入辅助信息。
其中，所述接入辅助信息用于所述终端设备在第二频率进行接入。所述接入辅助信息包括至少一个第二小区配置信息，所述第二小区为对应于第二频率的接入小区，所述第二小区配置信息包括以下至少一种：
(1)所述第二小区的标识信息，例如PCI或者小区标识(cell indentifer,CI)；
(2)所述第二频率的频点信息，例如所述第二频率的频率编号；
(3)所述第二小区的参考信号的配置信息，例如，SSB的配置信息，CSI-RS的配置信息，或者发现参考信号(discovery reference signal,DRS)的配置信息；
(4)所述第二小区的接入资源信息，例如，RACH资源的配置信息，或者消息3(Msg3)授权信息；
(5)所述第二小区的系统信息，例如系统信息块(system information block,SIB)1，SIB2；
(6)所述探测信号的测量结果。
对于步骤S1407：所述第一接入网设备确定对应于第二频率的接入信息。
具体的，第一接入网设备接收到接入辅助信息后，根据所述接入辅助信息确定对应于第二频率的接入信息，所述接入信息包括接入辅助信息中的一个或者多个第二小区的配置信息。第一接入网设备也可能接收来自多个第二接入网设备的接入辅助信息。
当第一接入网设备收到的接入辅助信息中仅有一个第二小区配置信息时，第一接入网设备可以将所述第二小区配置信息发送给UE。
当所述接入辅助信息包括多个第二小区配置信息时，第一接入网设备可以从多个第二小区配置信息中选择一个或者多个作为所述接入信息，或者将所述接入辅助信息全部作为接入信息发送给终端设备。
在一种可能的实现中，第一接入网设备根据至少一个测量结果以及所述接入辅助信息 确定接入信息，所述至少一个测量结果为至少一个第二小区根据接收的所述探测信号确定的测量结果，也就是说，测量结果可以表征对应的第二小区接收所述探测信号的质量，例如测量结果包括RSRP值或者参考信号接收质量(reference signal received quality,RSRQ)值。例如，第一接入网设备根据测量结果，选择接收所述探测信号的质量最高的一个或者多个第二小区。又例如，第一接入网设备根据预定义的阈值，选择测量结果高于所述阈值的至少一个第二小区，将所述至少一个第二小区的配置信息发送给终端设备。可选的，所述对应于第二频率的接入信息承载于随机接入响应消息，系统广播信息，或者探测响应消息。其中，所述第二频率接入信息可以通过不同的消息发送。例如，所述小区ID可以承载于探测响应消息中，RACH配置可以通过系统广播发送。在一种可能的实现中，第一接入网设备通过探测响应信息向终端设备传输所述探测信号的确认标记，终端设备接收所述确认标记之后，可以确定所述探测响应信息响应于所述探测信号。
在第一接入网设备确定对应于第二频率的接入信息之后，通过第一频率向终端设备发送所述接入信息。相应的，所述终端设备通过第一频率接收对应于第二频率的接入信息，并根据所述接入信息接入第二频率，以下详细介绍终端设备应用接入信息进行接入的方法。
在一种可能的实现中，所述接入信息包括所述第二小区的标识信息，终端设备根据所述标识信息确定接入小区的标识。可选的，所述接入信息中不包括RACH配置信息，终端设备可以根据SSB或者CSI-RS获取小区定时后，读取SIB1获取随机接入配置信息，再根据随机接入配置信息进行随机接入。进一步可选的，所述接入信息中包含SIB1的调度配置信息，终端可以根据所述接入资源信息中SIB1的调度配置信息确定SIB1的调度，并根据所述调度接收SIB1。
在另一种可能的实现中，所述接入信息包括随机接入资源的配置信息和第二小区的ID，所述终端设备根据第二小区ID以及所述随机接入资源的配置信息对第二小区发起随机接入，其中第二小区的频率为第二频率。所述随机接入资源的配置信息可以包括所述随机接入资源的接入时机配置，频率配置，前导配置中的至少一个。
再一种可能的实现中，所述接入信息包括所述第二小区的Msg3的授权信息，终端设备可以根据Msg3的授权信息，向基站发送Msg3，而不需要在第二小区发起完整的随机接入过程，从而提高通信效率，其中Msg3可以包括终端设备的RRC建立请求，RRC重建立请求，或者RRC恢复请求信息，Msg3还可以包括终端设备通过测量确定的第一波束标识，所述第一波束标识用于指示所述终端设备请求接入的波束，也可以理解为终端设备确定的偏好的波束方向，第二接入网设备可以根据所述第一波束标识确定终端设备偏好的波束方向，进一步，第二接入网设备可以根据所述偏好的波束方向调度终端设备。
在一种可能的实现中，所述接入信息包括所述第二频率的频点信息，那么终端设备根据所述频点信息进行接入。需要说明的是，当所述第二小区配置信息中不包括所述第二频率的频点信息时，终端设备可以通过第一小区的广播消息确定，或者所述第二频率的频点信息也可以是预配置在终端设备中的。当所述接入信息包括所述第二频率的频点信息时，终端设备可以应用所述频点信息接入，节省了接收广播消息的时延和能量消耗。
在一种可能的实现中，所述接入信息包括所述第二小区的参考信号的配置信息，终端设备可以根据参考信号的配置信息进行参考信号的测量。当所述接入信息包括SSB配置信息时，终端设备可以根据SSB的窗口配置信息进行SSB测量和小区同步，完成下行同步后， 可以根据随机接入资源发起接入。当所述接入信息包括CSI-RS配置信息时，终端设备可以在根据SSB获取小区定时(帧边界或slot边界)之后，根据小区定时进行CSI-RS测量，又例如，终端设备可以根据CSI-RS的位置发送确定小区的下行定时(帧边界或slot边界)，然后根据随机接入资源发起接入。终端设备还可以根据SSB测量结果或者CSI-RS测量结果定Msg3中携带的第一波束标识。需要说明的是，当所述第二小区配置信息中不包括所述第二小区的参考信号的配置信息时，终端设备可以通过盲检测小区标识对应的SSB参考信号来接收SSB。
在一种可能的实现中，所述接入信息包括多个第二小区的配置信息，那么终端设备对多个第二小区的参考信号进行测量。当终端设备仅搜索一个小区的下行参考信号时，则确定使用搜索到的小区的接入参数进行接入。当终端设备搜索到多个小区时，可以从中选择一个小区的接入参数进行接入，具体的，可以根据所述多个小区的测量结果进行选择，进而可以选择测量质量高的小区提供给终端设备，以提高终端设备的通信质量，节省终端设备进行小区测量的消耗。
需要说明的是，以上所述可能的实现可以相互结合应用。
通过本申请实施例提供的通信方法，终端设备可以实现在RRC空闲态时驻留在第一频率，通过第一频率接收下行信息，进而节省RRM测量的消耗，当终端设备需要进行业务传输时，可以向第二接入网设备发送探测信号，第二接入网设备可以通过接收来自终端设备的探测信号来确定终端设备的位置，进而确定可以为终端设备提供服务，第二接入网设备可以将用于终端设备接入的接入辅助信息(经由第一接入网设备)通过第一频率发送给终端设备，终端设备接入第二频率获取通信服务，以满足终端设备的业务需求。通过在第一频率接收对应于第二频率的接入信息可以节省在第二小区接收广播消息，以及进行小区选择或者小区重选测量的开销，进而提高接入效率，并节省消耗。
下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此，上文中的内容均可以用于后续实施例中，重复的内容不再赘述。
图8为本申请实施例提供的通信装置800的示意性框图。示例性地，通信装置800例如为终端设备800。
终端设备800包括处理模块810和收发模块820。示例性地，终端设备800可以是终端设备，也可以是应用于终端设备中的芯片或者其他具有上述终端设备功能的组合器件、部件等。当终端设备800是终端设备时，收发模块820可以是收发器，收发器可以包括天线和射频电路等，处理模块810可以是处理器，例如基带处理器，基带处理器中可以包括一个或多个CPU。当终端设备800是具有上述终端设备功能的部件时，收发模块820可以是射频单元，处理模块810可以是处理器，例如基带处理器。当终端设备800是芯片系统时，收发模块820可以是芯片(例如基带芯片)的输入输出接口、处理模块810可以是芯片系统的处理器，可以包括一个或多个中央处理单元。应理解，本申请实施例中的处理模块810可以由处理器或处理器相关电路组件实现，收发模块820可以由收发器或收发器相关电路组件实现。
例如，处理模块810可以用于执行图4、图5或图6、图7或图14A～14B所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如S402，和/或用于支持本文所描 述的技术的其它过程。收发模块820可以用于执行图4、图5或图6、图7或图14A～14B所示的实施例中由终端设备所执行的全部收发操作，例如S401和S403，和/或用于支持本文所描述的技术的其它过程。
另外，关于收发模块820的实现方式，可参考对于收发模块820的实现方式的介绍。
其中，收发模块820，用于与其他通信装置进行通信；
处理模块810，用于通过所述收发模块820使所述通信装置驻留在第一小区；
处理模块810，还用于：响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区。其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。
作为一种可选的实施方式，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率；
所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
所述第一小区的波束数量少于所述第二小区的波束数量。
作为一种可选的实施方式，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
作为一种可选的实施方式，处理模块810用于通过如下方式确定接入第二小区：
响应于确定有待传输的上行信息且确定所述第一小区不支持上行传输时，确定接入第二小区；或
响应于确定有待传输的上行信息且确定所述待传输的上行信息为数据业务时，确定接入所述第二小区；或
应于确定有待传输的非多播业务且确定所述第一小区仅支持传输多播业务时，确定接入第二小区。
作为一种可选的实施方式，处理模块810用于通过以下方式确定接入第二小区：对所述第一小区的参考信号进行测量，当测量结果小于第一阈值时，确定接入所述第二小区。
作为一种可选的实施方式，收发模块820还用于接收来自网络设备的指示信息，所述指示信息用于指示接入所述第二小区，或者指示不接入所述第一小区，或者指示根据所述第二频率选择小区进行接入，或者指示所述第一频率的频率优先级为最低优先级。
作为一种可选的实施方式，处理模块810用于根据所述第二频率进行小区选择，选择接入所述第二小区；或将所述第一频率的频率优先级降低至低于所述第二频率的频率优先级，触发对频率为所述第二频率的小区进行测量，并重选到所述第二小区。
作为一种可选的实施方式，当所述终端设备的服务小区为第三小区时，所述处理模块810用于通过小区选择、小区重选或者切换，更换服务小区为所述第一小区，其中，所述第三小区的频率不同于所述第一频率。
作为一种可选的实施方式，收发模块820用于接收来自网络设备的第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。收发模块820还用于对所述第一频率进行测量并更换服务小区至所述第一小区。
作为一种可选的实施方式，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
作为一种可选的实施方式，处理模块810用于根据所述终端设备的节能模式，所述终端设备的业务活跃程度，所述终端设备的电量和所述终端设备的接入时延中的至少一个确定更换服务小区为所述第一小区。
作为一种可选的实施方式，终端设备800用于实现图14A～14B所示的实施例中终端设备对应的方法。收发模块820还用于通过第一频率接收对应于第二频率的接入信息，处理模块810还用于通过收发模块820根据所述接入信息接入第二频率。
关于终端设备800所能实现的其他功能，可参考图4、图5或图6、图7或图14A～14B所示的实施例的相关介绍，不多赘述。
图9为本申请实施例提供的通信装置900的示意性框图。示例性地，通信装置900例如为网络设备900。
网络设备900包括处理模块910和收发模块920。示例性地，网络设备900可以是网络设备，也可以是应用于网络设备中的芯片或者其他具有上述网络设备功能的组合器件、部件等。当网络设备900是网络设备时，收发模块920可以是收发器，收发器可以包括天线和射频电路等，处理模块910可以是处理器，例如基带处理器，基带处理器中可以包括一个或多个CPU。当网络设备900是具有上述网络设备功能的部件时，收发模块920可以是射频单元，处理模块910可以是处理器，例如基带处理器。当网络设备900是芯片系统时，收发模块920可以是芯片(例如基带芯片)的输入输出接口、处理模块910可以是芯片系统的处理器，可以包括一个或多个中央处理单元。应理解，本申请实施例中的处理模块910可以由处理器或处理器相关电路组件实现，收发模块920可以由收发器或收发器相关电路组件实现。
例如，处理模块910可以用于执行图4、图5或图6、图7或图14A～14B所示的实施例中由接入网设备所执行的除了收发操作之外的全部操作，和/或用于支持本文所描述的技术的其它过程。收发模块920可以用于执行图4、图5或图6、图7或图14A～14B所示的实施例中由网络设备(接入网设备)所执行的全部收发操作，和/或用于支持本文所描述的技术的其它过程。
另外，关于收发模块920的实现方式，可参考对于收发模块820的实现方式的介绍。
其中，处理模块910，用于确定指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级；
收发模块920，用于通过所述第一小区向终端设备发送所述指示信息，所述第一小区的频率为所述第一频率，所述第二小区的频率为所述第二频率，所述第一小区为所述第一接入网设备的小区，所述第二小区为第二接入网设备的小区。
作为一种可选的实施方式，所述第一小区和所述第二小区满足以下至少一个：
所述第一频率低于所述第二频率；
所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
所述第一小区的波束数量少于所述第二小区的波束数量。
作为一种可选的实施方式，所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
作为一种可选的实施方式，所述指示信息承载于寻呼消息。
作为一种可选的实施方式，收发模块920用于向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
作为一种可选的实施方式，所述第一消息为广播消息或者专用的无线资源控制RRC消息。
作为一种可选的实施方式，网络设备900用于实现图14A～14B所示的实施例中第二接入网设备对应的方法。其中，收发模块920用于接收来自终端设备的探测信号，所述处理模块910用于确定对应于所述终端设备的接入辅助信息，所述收发模块920还用于向第一接入网设备发送所述接入辅助信息。
作为一种可选的实施方式，网络设备900用于实现图14A～14B所示的实施例中第一接入网设备对应的方法。其中，收发模块920用于接收来自第二接入网设备的接入辅助信息，所述接入辅助信息用于终端设备接入第二频率，所述处理模块910用于根据所述接入辅助信息确定接入信息，所述收发模块920还用于通过第一频率向终端设备发送所述接入信息。
关于网络设备900所能实现的其他功能，可参考图4、图5或图6、图7或图14A～14B所示的实施例的相关介绍，不多赘述。
当该通信装置为终端设备时，图10示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图10中，终端设备以手机作为例子。如图10所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图10中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元(收发单元可以是一个功能单元，该功能单元能够实现发送功能和接收功能；或者，收发单元也可以包括两个功能单元，分别为能够实现接收功能的接收单元和能够实现发送功能的发送单元)，将具有处理功能的处理器视为终端设备的处理单元。如图10所示，终端设备包括收发单元1010和处理单元1020。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元1010中用于实现接收功能的器件视为接收单元，将收发单元1010中用于实现发送功能的器件视为发送单元，即收发单元1010包括接收单元和发送单元。收发单元有时也可以称 为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元1010用于执行上述方法实施例中终端设备侧的发送操作和接收操作，处理单元1020用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。
例如，在一种实现方式中，处理单元1020可以用于执行图4、图5所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如确定接入第二小区等操作，和/或用于支持本文所描述的技术的其它过程。收发单元1010可以用于执行图4、图5所示的实施例中由终端设备所执行的全部收发操作，例如驻留在第一小区，和/或用于支持本文所描述的技术的其它过程。
又例如，在一种实现方式中，处理单元1020可以用于执行图6、图7所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如确定接入第二小区等操作，和/或用于支持本文所描述的技术的其它过程。收发单元1010可以用于执行图6、图7所示的实施例中由终端设备所执行的全部收发操作，例如驻留在第一小区，和/或用于支持本文所描述的技术的其它过程。
再例如，在一种实现方式中，处理单元1020可以用于执行图14A、图14B所示的实施例中由终端设备所执行的除了收发操作之外的全部操作，例如根据所述接入信息接入第二频率等操作，和/或用于支持本文所描述的技术的其它过程。收发单元1010可以用于执行图14A、图14B所示的实施例中由终端设备所执行的全部收发操作，例如通过第一频率接收对应于第二频率的接入信息，和/或用于支持本文所描述的技术的其它过程。
当该通信装置为芯片类的装置或者电路时，该装置可以包括收发单元和处理单元。其中，所述收发单元可以是输入输出电路和/或通信接口；处理单元为集成的处理器或者微处理器或者集成电路。
本实施例中的通信装置为终端设备时，可以参照图11所示的设备。作为一个例子，该设备可以完成类似于图8中处理模块810的功能。在图11中，该设备包括处理器1110，发送数据处理器1120，接收数据处理器1130。上述实施例中的处理模块810可以是图11中的处理器1110，并完成相应的功能；上述实施例中的收发模块820可以是图11中的发送数据处理器1120和接收数据处理器1130，并完成相应的功能。虽然图11中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。
图12示出本实施例的另一种形式。处理装置1200中包括调制子系统、中央处理子系统、周边子系统等模块。本实施例中的通信装置可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器1203，接口1204。其中，处理器1203完成上述处理模块810的功能，接口1204完成上述收发模块820的功能。作为另一种变形，该调制子系统包括存储器1206、处理器1203及存储在存储器1206上并可在处理器上运行的程序，该处理器1203执行该程序时实现上述方法实施例中终端设备侧的方法。需要注意的是，所述存储器1206可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于处理装置1200中，只要该存储器1206可以连接到所述处理器1203即可。
本申请实施例中的装置为网络设备时，该装置可以如图13所示。装置1300包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)1310和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)1320。所述RRU 1310可以 称为收发模块，该收发模块可以包括发送模块和接收模块，或者，该收发模块可以是一个能够实现发送和接收功能的模块。该收发模块可以与图9中的收发模块920对应。可选地，该收发模块还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线1311和射频单元1312。所述RRU 1310部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送指示信息。所述BBU 1310部分主要用于进行基带处理，对基站进行控制等。所述RRU 1310与BBU 1320可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 1320为基站的控制中心，也可以称为处理模块，可以与图9中的处理模块910对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理模块)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程，例如，生成上述指示信息等。
在一个示例中，所述BBU 1320可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网络)，也可以分别支持不同接入制式的无线接入网(如LTE网络，5G网络或其他网络)。所述BBU 1320还包括存储器1321和处理器1322。所述存储器1321用以存储必要的指令和数据。所述处理器1322用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器1321和处理器1322可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
本申请实施例提供第一通信系统。第一通信系统可以包括上述的图4、图5所示的实施例所涉及的终端设备和包括上述的图4、图5所示的实施例所涉及的接入网设备。终端设备例如为图8中的终端设备800，接入网设备例如为图9中的网络设备900。
本申请实施例提供第二通信系统。第二通信系统可以包括上述的图6、图7所示的实施例所涉及的终端设备和包括上述的图6、图7所示的实施例所涉及的接入网设备。终端设备例如为图8中的终端设备800，接入网设备例如为图9中的网络设备900。
本申请实施例提供第三通信系统。第三通信系统可以包括上述的图14A、图14B所示的实施例所涉及的终端设备和包括上述的图14A、图14B所示的实施例所涉及的接入网设备。终端设备例如为图8中的终端设备800，接入网设备例如为图9中的网络设备900。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图4、图5所示的实施例中与接入网相关的流程。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图4、图5所示的实施例中与终端设备相关的流程。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图6、图7所示的实施例中与接入网设备相关的流程。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图6、 图7所示的实施例中与终端设备相关的流程。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图14A、图14B所示的实施例中与接入网设备相关的流程。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图14A、图14B所示的实施例中与终端设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图4、图5所示的实施例中与接入网设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图4、图5所示的实施例中与终端设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图6、图7所示的实施例中与接入网设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图6、图7所示的实施例中与终端设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图14A、图14B所示的实施例中与接入网设备相关的流程。
本申请实施例还提供一种计算机程序产品，所述计算机程序产品用于存储计算机程序，该计算机程序被计算机执行时，所述计算机可以实现上述方法实施例提供的图14A、图14B所示的实施例中与终端设备相关的流程。
应理解，本申请实施例中提及的处理器可以是CPU，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced  SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)集成在处理器中。
应注意，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的计算机可读存储介质，可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、电可擦可编程只读存储器(electrically erasable programmable read only memory，EEPROM)、紧凑型光盘只读存储器(compact disc read-only memory，CD-ROM)、通用串行总线闪存盘(universal serial bus flash disk)、移动硬盘、或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。
以上所述，仅为本申请的具体实施方式，但本申请实施例的保护范围并不局限于此， 任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请实施例的保护范围之内。因此，本申请实施例的保护范围应所述以权利要求的保护范围为准。

Claims (31)

  1. 一种通信方法，其特征在于，所述方法适用于终端设备，包括：
    驻留在第一小区；
    响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区；
    其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。
  2. 根据权利要求1所述的方法，其特征在于，所述第一小区和所述第二小区满足以下至少一个：
    所述第一频率低于所述第二频率；
    所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
    所述第一小区的波束数量少于所述第二小区的波束数量。
  3. 根据权利要求1或2所述的方法，其特征在于，包括：
    所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
  4. 根据权利要求1～3任一项所述的方法，其特征在于，所述响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区包括：
    响应于确定有待传输的上行信息且确定所述第一小区不支持上行传输时，确定接入第二小区；或
    响应于确定有待传输的上行信息且确定所述待传输的上行信息为数据业务时，确定接入所述第二小区；或
    响应于确定有待传输的非多播业务且确定所述第一小区仅支持传输多播业务时，确定接入第二小区。
  5. 根据权利要求1～3任一项所述的方法，其特征在于，所述确定接入第二小区还包括：
    对所述第一小区的参考信号进行测量，当测量结果小于第一阈值时，确定接入所述第二小区。
  6. 根据权利要求1～3任一项所述的方法，其特征在于，所述方法还包括：
    接收来自网络设备的指示信息，所述指示信息用于指示接入所述第二小区，或者指示不接入所述第一小区，或者指示根据所述第二频率选择小区进行接入，或者指示所述第一频率的频率优先级为最低优先级。
  7. 根据权利要求1～6任一项所述的方法，其特征在于，所述确定接入第二小区包括：
    根据所述第二频率进行小区选择，选择接入所述第二小区；或
    将所述第一频率的频率优先级降低至低于所述第二频率的频率优先级，触发对频率为所述第二频率的小区进行测量，并重选到所述第二小区。
  8. 根据权利要求1～6任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备的服务小区为第三小区，所述第三小区的频率不同于所述第一频率；
    通过小区选择、小区重选或者切换，更换服务小区为所述第一小区。
  9. 根据权利要求8所述的方法，其特征在于，所述更换服务小区为所述第一小区包括：
    接收来自网络设备的第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
    对所述第一频率进行测量并更换服务小区至所述第一小区。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    根据所述终端设备的节能模式，所述终端设备的业务活跃程度，所述终端设备的电量和所述终端设备的接入时延中的至少一个确定更换服务小区为所述第一小区。
  11. 一种通信方法，其特征在于，所述方法适用于第一接入网设备，包括：
    确定指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级；
    通过所述第一小区向终端设备发送所述指示信息；
    所述第一小区的频率为所述第一频率，所述第二小区的频率为所述第二频率，所述第一小区为所述第一接入网设备的小区，所述第二小区为第二接入网设备的小区。
  12. 根据权利要求11所述的方法，其特征在于，所述第一小区和所述第二小区满足以下至少一个：
    所述第一频率低于所述第二频率；
    所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
    所述第一小区的波束数量少于所述第二小区的波束数量。
  13. 根据权利要求11或12所述的方法，其特征在于，包括：
    所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
  14. 根据权利要求11～13任一项所述的方法，其特征在于，包括：
    所述指示信息承载于寻呼消息。
  15. 根据权利要求11～14任一项所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
  16. 一种通信装置，其特征在于，包括处理模块和收发模块，其中，
    所述处理模块，用于通过所述收发模块驻留在第一小区；
    所述处理模块还用于响应于从所述第一小区接收寻呼消息，或者响应于确定有待传输的上行信息，或者响应于确定有待传输的非多播业务，确定接入第二小区；
    其中，所述第一小区的频率为第一频率，所述第二小区的频率为第二频率。
  17. 根据权利要求16所述的装置，其特征在于，所述第一小区和所述第二小区满足以下至少一个：
    所述第一频率低于所述第二频率；
    所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
    所述第一小区的波束数量少于所述第二小区的波束数量。
  18. 根据权利要求16或17所述的装置，其特征在于，包括：
    所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
  19. 根据权利要求16～18任一项所述的装置，其特征在于，所述处理模块具体用于：
    响应于确定有待传输的上行信息且确定所述第一小区不支持上行传输时，确定接入第二小区；或
    响应于确定有待传输的上行信息且确定所述待传输的上行信息为数据业务时，确定接入所述第二小区；或
    响应于确定有待传输的非多播业务且确定所述第一小区仅支持传输多播业务时，确定接入第二小区。
  20. 根据权利要求16～19任一项所述的装置，其特征在于，所述处理模块具体用于：
    对所述第一小区的参考信号进行测量，当测量结果小于第一阈值时，确定接入所述第二小区。
  21. 根据权利要求16～20任一项所述的装置，其特征在于，所述收发模块还用于：
    接收来自网络设备的指示信息，所述指示信息用于指示接入所述第二小区，或者指示不接入所述第一小区，或者指示根据所述第二频率选择小区进行接入，或者指示所述第一频率的频率优先级为最低优先级。
  22. 根据权利要求16～21任一项所述的装置，其特征在于，所述处理模块具体用于：
    根据所述第二频率进行小区选择，选择接入所述第二小区；或
    将所述第一频率的频率优先级降低至低于所述第二频率的频率优先级，触发对频率为所述第二频率的小区进行测量，并重选到所述第二小区。
  23. 根据权利要求16～22任一项所述的装置，其特征在于，所述终端设备的服务小区为第三小区，所述第三小区的频率不同于所述第一频率，所述处理模块还用于：
    通过小区选择、小区重选或者切换，更换服务小区为所述第一小区。
  24. 根据权利要求23所述的装置，其特征在于，所述处理模块具体用于：
    接收来自网络设备的第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
    对所述第一频率进行测量并更换服务小区至所述第一小区。
  25. 根据权利要求16～24任一项所述的装置，其特征在于，所述处理模块还用于：
    根据所述终端设备的节能模式，所述终端设备的业务活跃程度，所述终端设备的电量和所述终端设备的接入时延中的至少一个确定更换服务小区为所述第一小区。
  26. 一种通信装置，其特征在于，包括：
    处理模块，用于确定指示信息，所述指示信息用于指示接入第二小区，或者指示不接入第一小区，或者指示根据第二频率选择小区进行接入，或者指示第一频率的频率优先级为最低优先级；
    收发模块，用于通过所述第一小区向终端设备发送所述指示信息；
    所述第一小区的频率为所述第一频率，所述第二小区的频率为所述第二频率，所述第一小区为所述第一接入网设备的小区，所述第二小区为第二接入网设备的小区。
  27. 根据权利要求26所述的装置，其特征在于，所述第一小区和所述第二小区满足以下至少一个：
    所述第一频率低于所述第二频率；
    所述第一小区的覆盖范围大于所述第二小区的覆盖范围；
    所述第一小区的波束数量少于所述第二小区的波束数量。
  28. 根据权利要求26或27所述的装置，其特征在于，包括：
    所述第一小区不支持上行传输，或者所述第一小区仅支持传输多播业务。
  29. 根据权利要求26～28任一项所述的装置，其特征在于，包括：
    所述指示信息承载于寻呼消息。
  30. 根据权利要求26～29任一项所述的装置，其特征在于，所述收发模块还用于：
    向所述终端设备发送第一消息，所述第一消息用于指示所述第一频率的频率优先级，或者，所述第一消息用于指示所述第一频率为节能模式频率。
  31. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储指令，当所述指令在计算机上运行时，使得所述计算机执行如权利要求1～10中任意一项所述的方法，或者使得所述计算机执行如权利要求11～15中任意一项所述的方法。
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