Communication methods, communication device, communication system, storage medium and program product

Abstract

The present disclosure relates to communication methods, a communication device, a communication system, a storage medium and a program product. A method is executed by a terminal, and comprises: the terminal performing a first service on a first cell; and sending a first message on a second cell, the first message being used for requesting system information of the second cell. By means of the solution of the present disclosure, terminals request system messages on demand when performing first services.

Description

Communication methods, communication equipment, communication systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of wireless communication, and more particularly to a communication method, communication device, communication system, storage medium, and program product. Background Technology

[0002] With the widespread application of wireless communication technology, network energy consumption has increased significantly. Therefore, energy-saving technologies have become an important research direction for network operators and equipment manufacturers. To this end, network energy saving (NES) technology is proposed. NES refers to reducing the energy consumption of radio access networks (RANs) and other network infrastructure by optimizing the operation of network equipment, adjusting network configurations, and adopting energy-saving technologies. Summary of the Invention

[0003] How to request system messages on demand when a terminal is performing its first service is a technical problem that needs to be solved.

[0004] According to a first aspect of the present disclosure, a communication method is provided. The method is executed by a terminal. The method includes: performing a first service with a first network device on a first cell; and sending a first message to a second network device on a second cell, the first message being used to request system information from the second cell.

[0005] According to a second aspect of the present disclosure, a communication method is provided. The method is performed by a first network device. The method includes: performing a first service with a terminal on a first cell.

[0006] According to a third aspect of the present disclosure, a communication method is provided. The method is performed by a second network device. The method includes: receiving a first message sent by a terminal to the second network device on a second cell, the first message being used to request system information from the second cell.

[0007] According to a fourth aspect of the present disclosure, a terminal is provided. The terminal includes: a processing module configured to perform a first service with a first network device in a first cell; and to send a first message to a second network device in a second cell, the first message being used to request system information of the second cell.

[0008] According to a fifth aspect of the present disclosure, a terminal is provided. The terminal includes: a processing module configured to perform a first service with a first network device in a first cell; and to send a first message to a second network device in a second cell, the first message being used to request system information of the second cell.

[0009] According to a sixth aspect of the present disclosure, a network device, such as a first network device, is provided. The network device includes a processing module configured to perform a first service with a terminal on a first cell.

[0010] According to a seventh aspect of the present disclosure, a network device, such as a second network device, is provided. The network device includes a processing module configured to receive a first message sent by a terminal to the second network device on a second cell, the first message being used to request system information of the second cell.

[0011] According to an eighth aspect of the present disclosure, a communication system is provided. The communication system includes a terminal, a first network device, and a second network device. The terminal is configured to perform the communication method as described in the first aspect. The first network device is configured to perform the communication method as described in the second aspect. The second network device is configured to perform the communication method as described in the third aspect.

[0012] According to a ninth aspect of the present disclosure, a storage medium is provided. The storage medium stores instructions. When executed on a communication device, the instructions cause the communication device to perform the communication method as described in the first, second, or third aspect.

[0013] According to a tenth aspect of the present disclosure, a program product is provided. The program product includes at least one of a program and instructions. When the program or instructions are executed by a communication device, they implement the communication method as described in the first, second, or third aspect.

[0014] According to an eleventh aspect of the present disclosure, a computer program is provided. When the computer program is run on a computer, it causes the computer to perform the communication method as described in the first, second, or third aspect.

[0015] According to a twelfth aspect of this disclosure, a chip or chip system is provided. The chip or chip system includes processing circuitry. The processing circuitry is configured to perform the communication methods described in the first, second, or third aspects.

[0016] According to embodiments of this disclosure, the terminal can request system messages on demand when performing a first service.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not constitute a limitation on the embodiments of this disclosure. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments of the invention.

[0019] Figure 1A is a schematic diagram of an architecture of a communication system provided according to an embodiment of the present disclosure.

[0020] Figure 1B is a schematic diagram of the reuse relationship between the CORESET and SSB resources of SIB1 provided according to an embodiment of the present disclosure.

[0021] Figure 2A is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0022] Figure 2B is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0023] Figure 2C is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0024] Figure 3 is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0025] Figure 4A is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0026] Figure 4B is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0027] Figure 4C is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

[0028] Figure 5 is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0029] Figure 6A is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0030] Figure 6B is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0031] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0032] In a first aspect, embodiments of this disclosure provide a communication method. The method is executed by a terminal. The method includes: performing a first service with a first network device on a first cell; and sending a first message to a second network device on a second cell, the first message being used to request system information from the second cell.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the second cell is a Network Energy Saving (NES) cell.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal is in a radio resource control (RRC) disconnected state.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, sending a first message to a second network device on a second cell includes: after stopping a first service, sending a first message to a network device on the second cell according to the configuration information of the second cell.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes: sending a second message to a first network device on a first cell, the second message being used to notify the terminal to stop the first service.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes: sending a second message to a first network device on a first cell, the second message being used to notify the terminal to request system information of a second cell as needed.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, sending a first message to a second network device on a second cell includes: while performing a first service on the first cell, sending a first message to a second network device on the second cell according to the configuration information of the second cell.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the above method includes: receiving a third message sent by a second network device on a second cell, the third message carrying system information; and stopping the first service if it is determined from the system information that the cell has been reselected to the second cell.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, stopping the first service includes: stopping the timer associated with the first service.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, sending a first message to a second network device on a second cell includes: sending a first message to a second network device on a second cell within a first time period, based on the configuration information of the second cell.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes: suspending the first service on the first cell during a first time period.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes: sending a fourth message to a first network device on a first cell, the fourth message being used to notify the terminal of first configuration information for a first time period determined by the terminal.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the first network device does not acknowledge the fourth message.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes: sending a fifth message to a first network device on a first cell, the fifth message being used to request a first time period; and receiving a sixth message sent by the first network device on the first cell, the sixth message carrying second configuration information of the first time period.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the configuration information of the second cell is sent from the first network device to the terminal on the first cell.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, when a terminal performs a first service on a first cell, it is prohibited to send a first message on the first cell.

[0048] In a second aspect, embodiments of this disclosure provide a communication method. The method is performed by a first network device. The method includes: performing a first service with a terminal on a first cell.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, the terminal is in an RRC disconnected state.

[0050] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes: sending configuration information of a second cell to the terminal on the first cell, wherein the configuration information of the second cell is used by the terminal to send a first message to a second network device on the second cell, wherein the first message is used to request system information of the second cell.

[0051] In conjunction with some embodiments of the second aspect, in some embodiments, the second cell is a Network Energy Saving (NES) cell.

[0052] In conjunction with some embodiments of the second aspect, in some embodiments, the first service is stopped before the terminal sends the first message on the second cell.

[0053] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes: receiving a second message sent by the terminal to the first network device on the first cell, the second message being used to notify the terminal to stop the first service.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes: receiving a second message sent by the terminal to the first network device on the first cell, the second message being used to notify the terminal to request system information of the second cell as needed.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, the first service is stopped when the terminal determines that the cell has been reselected to the second cell based on the system information of the second cell. The system information of the second cell is obtained by the terminal by sending a first message while performing the first service.

[0056] In conjunction with some embodiments of the second aspect, in some embodiments, stopping the first service includes stopping the timer associated with the first service.

[0057] In conjunction with some embodiments of the second aspect, in some embodiments, the first service is stopped at the beginning of a first time period, which is the period during which the terminal stops performing the first service and is used for the terminal to send a first message.

[0058] In conjunction with some embodiments of the second aspect, in some embodiments, the above method includes: receiving a fourth message sent by a terminal on a first cell, the fourth message being used to notify the terminal of first configuration information determined for a first time period.

[0059] In conjunction with some embodiments of the second aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the network device does not acknowledge the fourth message.

[0060] In conjunction with some embodiments of the second aspect, in some embodiments, the above method includes: receiving a fifth message sent by a terminal on a first cell, the fifth message being used to request knowledge of a first time period; and sending a sixth message to the terminal on the first cell, the sixth message carrying second configuration information of the first time period.

[0061] In a third aspect, embodiments of this disclosure provide a communication method. This method is performed by a second network device. The method includes: receiving a first message sent by a terminal to the second network device on a second cell, the first message being used to request system information from the second cell.

[0062] In conjunction with some embodiments of the third aspect, in some embodiments, the second cell is a Network Energy Saving (NES) cell.

[0063] In conjunction with some embodiments of the third aspect, in some embodiments, the terminal is in an RRC disconnected state.

[0064] In conjunction with some embodiments of the third aspect, in some embodiments the above method further includes: sending a third message to the terminal, the third message carrying system information.

[0065] In conjunction with some embodiments of the third aspect, in some embodiments, the first message is sent by the terminal on the second cell according to the configuration information of the second cell after the terminal stops the first service on the first cell.

[0066] In conjunction with some embodiments of the third aspect, in some embodiments, the first message is sent by the terminal on the second cell while performing the first service on the first cell, based on the configuration information of the second cell.

[0067] In conjunction with some embodiments of the third aspect, in some embodiments, the first message is sent by the terminal on the second cell according to the configuration information of the second cell within a first time period, and the first time period is the time period during which the terminal stops performing the first service on the first cell.

[0068] In conjunction with some embodiments of the third aspect, in some embodiments, the configuration information of the second cell is sent from the first network device to the terminal on the first cell.

[0069] In a fourth aspect, embodiments of this disclosure provide a communication method. The method is executed by a terminal. The method includes: when the terminal is performing a first service on a first cell, determining to send a first message to a network device on a second cell, the first message being used to request system information from the second cell, the second cell being a neighboring cell of the first cell.

[0070] In this embodiment of the disclosure, when the terminal performs the first service, it can determine to send a first message to the neighboring cell to request system information from the neighboring cell. In this way, the terminal can request system messages on demand when performing the first service, thus eliminating the need for frequent broadcast reception and reducing the energy consumption of the terminal and the network.

[0071] In conjunction with some embodiments of the fourth aspect, in some embodiments, the second cell is an NES cell.

[0072] In conjunction with some embodiments of the fourth aspect, in some embodiments, the terminal is in a radio resource control (RRC) disconnected state.

[0073] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above method further includes: after stopping the first service, sending a first message to the network device in the second cell according to the configuration information of the second cell.

[0074] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above method further includes: sending a second message to a network device on the first cell, the second message being used to instruct the terminal to stop the first service.

[0075] In conjunction with some embodiments of the fourth aspect, in some embodiments, the second message carries second information, which is used to indicate that the reason for the termination of the first service is on-demand system information.

[0076] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above method includes: while performing a first service on the first cell, sending a first message to a network device on the second cell according to the configuration information of the second cell.

[0077] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above method includes: receiving a third message on a second cell, the third message carrying system information; and stopping the first service if it is determined, based on the system information, that the cell has been reselected to the second cell.

[0078] In conjunction with some embodiments of the fourth aspect, in some embodiments, stopping the first service includes: stopping the timer associated with the first service.

[0079] In some embodiments of the fourth aspect, the above method includes: sending a fourth message to a network device on a first cell, the fourth message being used to request a first time period, the first time period being used for a terminal to send a first message on a second cell.

[0080] In conjunction with some embodiments of the fourth aspect, in some embodiments, the fourth message carries first configuration information for a first time period.

[0081] In conjunction with some embodiments of the fourth aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the network device does not acknowledge the fourth message.

[0082] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above method further includes: receiving a fifth message sent by a network device on a first cell, the fifth message being an acknowledgment message of the fourth message, the fifth message carrying second configuration information for a first time period.

[0083] In conjunction with some embodiments of the fourth aspect, in some embodiments the above method further includes: sending a first message on a second cell within a first time period according to second configuration information.

[0084] In conjunction with some embodiments of the fourth aspect, in some embodiments, when the terminal performs the first service on the first cell, the terminal prohibits the sending of the first message on the first cell.

[0085] In a fifth aspect, embodiments of this disclosure provide a communication method. The method is performed by a first network device. The method includes: receiving a first message sent by a terminal on a second cell, the first message being used to request system information from the second cell, the second cell being a neighboring cell of the first cell, and the first message being determined to be sent by the terminal when performing a first service on the first cell.

[0086] In this embodiment of the disclosure, when the terminal performs the first service, it can determine to send a first message to the neighboring cell to request system information from the neighboring cell. In this way, the terminal can request system messages on demand when performing the first service, thus eliminating the need for frequent broadcast reception and reducing the energy consumption of the terminal and the network.

[0087] In conjunction with some embodiments of the fifth aspect, in some embodiments, the second cell is an NES cell.

[0088] In conjunction with some embodiments of the fifth aspect, in some embodiments, the terminal is in an RRC disconnected state.

[0089] In conjunction with some embodiments of the fifth aspect, in some embodiments the above method further includes: sending a third message to the terminal, the third message carrying system information.

[0090] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first message is sent by the terminal on the second cell according to the configuration information of the second cell after the first service is stopped.

[0091] In conjunction with some embodiments of the fifth aspect, in some embodiments, the above method further includes: receiving a terminal sending a second message on a first cell, the second message being used to instruct the terminal to stop the first service.

[0092] In conjunction with some embodiments of the fifth aspect, in some embodiments, the second message carries second information, which is used to indicate that the reason for the termination of the first service is on-demand system information.

[0093] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first message is sent by the terminal on the second cell while performing the first service on the first cell, based on the configuration information of the second cell.

[0094] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first service is stopped when the terminal determines, based on system information, that the cell has been reselected to a second cell.

[0095] In conjunction with some embodiments of the fifth aspect, in some embodiments, stopping the first service includes stopping the timer associated with the first service.

[0096] In conjunction with some embodiments of the fifth aspect, in some embodiments, the above method includes: receiving a fourth message sent by a terminal on a first cell, the fourth message being used to request a first time period, the first time period being used for the terminal to send a first message on a second cell.

[0097] In conjunction with some embodiments of the fifth aspect, in some embodiments, the fourth message carries first configuration information for a first time period.

[0098] In conjunction with some embodiments of the fifth aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the network device does not acknowledge the fourth message.

[0099] In some embodiments of the fifth aspect, the above method further includes: sending a fifth message to the terminal on the first cell, the fifth message being an acknowledgment message of the fourth message, and the fifth message carrying second configuration information for a first time period.

[0100] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first message is sent by the terminal on the second cell within a first time period according to the second configuration information.

[0101] In conjunction with some embodiments of the fifth aspect, in some embodiments, the steps performed by the network device on the first cell can be understood as being performed by the network device to which the first cell belongs, such as the first network device.

[0102] In conjunction with some embodiments of the fifth aspect, in some embodiments, the steps performed by the network device on the second cell can be understood as being performed by the network device to which the second cell belongs, such as the second network device.

[0103] In a sixth aspect, embodiments of this disclosure provide a terminal. The terminal includes: a transceiver module configured to perform a first service with a first network device in a first cell; and to send a first message to a second network device in a second cell, the first message being used to request system information from the second cell.

[0104] In conjunction with some embodiments of the sixth aspect, in some embodiments, the second cell is a network energy-saving (NES) cell.

[0105] In conjunction with some embodiments of the sixth aspect, in some embodiments, the terminal is in a radio resource control (RRC) disconnected state.

[0106] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to send a first message to the network device in the second cell according to the configuration information of the second cell after the first service is stopped.

[0107] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to send a second message to the first network device on the first cell, the second message being used to notify the terminal to stop the first service.

[0108] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to send a second message to the first network device on the first cell, the second message being used to notify the terminal to request system information of the second cell as needed.

[0109] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to perform a first service on the first cell while simultaneously sending a first message to a second network device on the second cell according to the configuration information of the second cell.

[0110] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to receive a third message sent by a second network device on the second cell, the third message carrying system information; and to stop the first service if it is determined, based on the system information, that the cell has been reselected to the second cell.

[0111] In conjunction with some embodiments of the sixth aspect, in some embodiments, stopping the first service includes: stopping the timer associated with the first service.

[0112] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to send a first message to the second network device on the second cell according to the configuration information of the second cell during a first time period, wherein the first time period is the time period during which the terminal stops performing the first service.

[0113] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is also configured to stop performing the first service on the first cell during a first time period.

[0114] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to send a fourth message to the first network device on the first cell, the fourth message being used to notify the terminal of first configuration information for a first time period.

[0115] In conjunction with some embodiments of the sixth aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the first network device does not acknowledge the fourth message.

[0116] In conjunction with some embodiments of the sixth aspect, in some embodiments, the transceiver module is further configured to send a fifth message to the first network device on the first cell, the fifth message being used to request a first time period; and to receive a sixth message sent by the first network device on the first cell, the sixth message carrying second configuration information of the first time period.

[0117] In conjunction with some embodiments of the sixth aspect, in some embodiments, the configuration information of the second cell is sent from the first network device to the terminal on the first cell.

[0118] In conjunction with some embodiments of the sixth aspect, in some embodiments, when a terminal performs a first service on a first cell, it is prohibited from sending a first message on the first cell.

[0119] In a seventh aspect, embodiments of this disclosure provide a network device, such as a first network device. The network device includes a transceiver module configured to perform a first service with a terminal on a first cell.

[0120] In conjunction with some embodiments of the seventh aspect, in some embodiments, the terminal is in an RRC disconnected state.

[0121] In conjunction with some embodiments of the seventh aspect, in some embodiments, the transceiver module is further configured to send configuration information of a second cell to the terminal on the first cell. The configuration information of the second cell is used by the terminal to send a first message to the second network device on the second cell. The first message is used to request system information of the second cell.

[0122] In conjunction with some embodiments of the seventh aspect, in some embodiments, the second cell is a Network Energy Saving (NES) cell.

[0123] In conjunction with some embodiments of the seventh aspect, in some embodiments, the first service is stopped before the terminal sends the first message on the second cell.

[0124] In conjunction with some embodiments of the seventh aspect, in some embodiments, the transceiver module is further configured to receive a second message sent by the terminal to the first network device on the first cell, the second message being used to notify the terminal to stop the first service.

[0125] In conjunction with some embodiments of the seventh aspect, in some embodiments, the transceiver module is further configured to receive a second message sent by the terminal to the first network device on the first cell, the second message being used to notify the terminal to request system information of the second cell as needed.

[0126] In conjunction with some embodiments of the seventh aspect, in some embodiments, the first service is stopped when the terminal determines that the cell has been reselected to the second cell based on the system information of the second cell, and the system information of the second cell is obtained by the terminal by sending a first message while performing the first service.

[0127] In conjunction with some embodiments of the seventh aspect, in some embodiments, stopping the first service includes stopping the timer associated with the first service.

[0128] In conjunction with some embodiments of the seventh aspect, in some embodiments, the first service is stopped at the beginning of a first time period, the first time period being the period during which the terminal stops performing the first service, and the first time period being used for the terminal to send a first message.

[0129] In conjunction with some embodiments of the seventh aspect, in some embodiments, the transceiver module is further configured to receive a fourth message sent by the terminal on the first cell, the fourth message being used to notify the terminal of first configuration information for a first time period determined by the terminal.

[0130] In conjunction with some embodiments of the seventh aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the network device does not acknowledge the fourth message.

[0131] In conjunction with some embodiments of the seventh aspect, in some embodiments, the transceiver module is further configured to receive a fifth message sent by the terminal on the first cell, the fifth message being used to request information about a first time period; and to send a sixth message to the terminal on the first cell, the sixth message carrying second configuration information for the first time period.

[0132] In an eighth aspect, embodiments of this disclosure provide a network device, such as a second network device. The network device includes a transceiver module configured to receive a first message sent by a terminal to the second network device on a second cell, the first message being used to request system information from the second cell.

[0133] In conjunction with some embodiments of the eighth aspect, in some embodiments, the second cell is a network energy-saving (NES) cell.

[0134] In conjunction with some embodiments of the eighth aspect, in some embodiments, the terminal is in an RRC disconnected state.

[0135] In conjunction with some embodiments of the eighth aspect, in some embodiments, the transceiver module is further configured to send a third message to the terminal, the third message carrying system information.

[0136] In conjunction with some embodiments of the eighth aspect, in some embodiments, the first message is sent by the terminal on the second cell according to the configuration information of the second cell after the terminal stops the first service on the first cell.

[0137] In conjunction with some embodiments of the eighth aspect, in some embodiments, the first message is sent by the terminal on the second cell while performing the first service on the first cell, according to the configuration information of the second cell.

[0138] In conjunction with some embodiments of the eighth aspect, in some embodiments, the first message is sent by the terminal on the second cell according to the configuration information of the second cell within a first time period, and the first time period is the time period during which the terminal stops performing the first service on the first cell.

[0139] In conjunction with some embodiments of the eighth aspect, in some embodiments, the configuration information of the second cell is sent from the first network device to the terminal on the first cell.

[0140] In a ninth aspect, embodiments of this disclosure provide a terminal. The terminal includes a processing module configured to, when the terminal is performing a first service on a first cell, determine to send a first message to a network device on a second cell, the first message being used to request system information from the second cell, the second cell being a neighboring cell of the first cell.

[0141] In conjunction with some embodiments of the ninth aspect, in some embodiments, the second cell is an NES cell.

[0142] In conjunction with some embodiments of the ninth aspect, in some embodiments, the terminal is in an RRC disconnected state.

[0143] In conjunction with some embodiments of the ninth aspect, in some embodiments, the terminal further includes: a transceiver module configured to send a first message to a network device in the second cell according to the configuration information of the second cell after the first service is stopped.

[0144] In conjunction with some embodiments of the ninth aspect, in some embodiments, the transceiver module is further configured to send a second message to the network device on the first cell, the second message being used to instruct the terminal to stop the first service.

[0145] In conjunction with some embodiments of the ninth aspect, in some embodiments, the second message carries second information, which is used to indicate that the reason for the termination of the first service is on-demand system information.

[0146] In conjunction with some embodiments of the ninth aspect, in some embodiments, the terminal further includes: a transceiver module configured to perform a first service on the first cell while sending a first message to a network device on the second cell according to the configuration information of the second cell.

[0147] In conjunction with some embodiments of the ninth aspect, in some embodiments, the transceiver module is further configured to receive a third message on the second cell, the third message carrying system information; the processing module is configured to stop the first service if it is determined, based on the system information, that the cell has been reselected to the second cell.

[0148] In conjunction with some embodiments of the ninth aspect, in some embodiments, stopping the first service includes: stopping the timer associated with the first service.

[0149] In conjunction with some embodiments of the ninth aspect, in some embodiments, the transceiver module is further configured to send a fourth message to the network device on the first cell, the fourth message being used to request a first time period, the first time period being used for the terminal to send the first message on the second cell.

[0150] In conjunction with some embodiments of the ninth aspect, in some embodiments, the fourth message carries first configuration information for a first time period.

[0151] In conjunction with some embodiments of the ninth aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the network device does not acknowledge the fourth message.

[0152] In conjunction with some embodiments of the ninth aspect, in some embodiments, the transceiver module is further configured to receive a fifth message sent by a network device on a first cell, the fifth message being an acknowledgment message of the fourth message, and the fifth message carrying second configuration information for a first time period.

[0153] In conjunction with some embodiments of the ninth aspect, in some embodiments, the transceiver module is further configured to send a first message on a second cell within a first time period according to the second configuration information.

[0154] In conjunction with some embodiments of the ninth aspect, in some embodiments, when the terminal performs a first service on the first cell, the terminal prohibits the sending of a first message on the first cell.

[0155] In a tenth aspect, embodiments of this disclosure provide a network device. The network device includes: a transceiver module configured to receive a first message sent by a terminal on a second cell, the first message being used to request system information from the second cell, the second cell being a neighboring cell of a first cell, and the first message being determined to be sent by the terminal when performing a first service on the first cell.

[0156] In conjunction with some embodiments of the tenth aspect, in some embodiments, the second cell is an NES cell.

[0157] In conjunction with some embodiments of the tenth aspect, in some embodiments, the terminal is in an RRC disconnected state.

[0158] In conjunction with some embodiments of the tenth aspect, in some embodiments, the transceiver module is further configured to send a third message to the terminal, the third message carrying system information.

[0159] In conjunction with some embodiments of the tenth aspect, in some embodiments, the first message is sent by the terminal on the second cell according to the configuration information of the second cell after the first service is stopped.

[0160] In conjunction with some embodiments of the tenth aspect, in some embodiments, the transceiver module is further configured to receive a second message sent by the terminal on the first cell, the second message being used to instruct the terminal to stop the first service.

[0161] In conjunction with some embodiments of the tenth aspect, in some embodiments, the second message carries second information, which is used to indicate that the reason for the termination of the first service is on-demand system information.

[0162] In conjunction with some embodiments of the tenth aspect, in some embodiments, the first message is sent by the terminal on the second cell while performing the first service on the first cell, according to the configuration information of the second cell.

[0163] In conjunction with some embodiments of the tenth aspect, in some embodiments, the first service is stopped when the terminal determines, based on system information, that the cell has been reselected to a second cell.

[0164] In conjunction with some embodiments of the tenth aspect, in some embodiments, stopping the first service includes stopping the timer associated with the first service.

[0165] In conjunction with some embodiments of the tenth aspect, in some embodiments, the transceiver module is further configured to receive a fourth message sent by the terminal on a first cell, the fourth message being used to request a first time period, the first time period being used for the terminal to send a first message on a second cell.

[0166] In conjunction with some embodiments of the tenth aspect, in some embodiments, the fourth message carries first configuration information for a first time period.

[0167] In conjunction with some embodiments of the tenth aspect, in some embodiments, the fourth message carries first information, which is used to indicate that the network device does not acknowledge the fourth message.

[0168] In conjunction with some embodiments of the tenth aspect, in some embodiments, the transceiver module is further configured to send a fifth message to the terminal on the first cell, the fifth message being an acknowledgment message of the fourth message, and the fifth message carrying second configuration information for a first time period.

[0169] In conjunction with some embodiments of the tenth aspect, in some embodiments, the first message is sent by the terminal on the second cell within a first time period according to the second configuration information.

[0170] In conjunction with some embodiments of the tenth aspect, in some embodiments, the transceiver module is configured to perform corresponding steps on the first cell, wherein the transceiver module is deployed in the network device to which the first cell belongs, such as the first network device.

[0171] In conjunction with some embodiments of the tenth aspect, in some embodiments, the transceiver module is configured to perform corresponding steps on the second cell, whereby the transceiver module is deployed in the network device to which the second cell belongs, such as in the second network device.

[0172] In an eleventh aspect, embodiments of this disclosure provide a communication device. This communication device is used to perform the communication methods described in any of the first, second, third, fourth, and fifth aspects and their possible implementations.

[0173] In a twelfth aspect, embodiments of this disclosure provide a communication system. The communication system includes a terminal, a first network device, and a second network device. The terminal is configured to perform a communication method as described in any of the first aspect and its possible embodiments. The first network device is configured to perform a communication method as described in any of the second aspect and its possible embodiments. The second network device is configured to perform a communication method as described in any of the third aspect and its possible embodiments.

[0174] In a thirteenth aspect, embodiments of this disclosure provide a communication system. The communication system includes a terminal and a network device. The terminal is configured to perform the communication method as described in any of the fourth aspect and its possible embodiments. The network device is configured to perform the communication method as described in any of the fifth aspect and its possible embodiments.

[0175] In a fourteenth aspect, embodiments of this disclosure provide a storage medium storing instructions. When executed on a communication device, the instructions cause the communication device to perform the communication method as described in the first aspect, the second aspect, and any possible embodiments thereof.

[0176] In a fifteenth aspect, embodiments of this disclosure provide a program product. The program product includes at least one of a program and instructions. When executed by a communication device, the program or instructions implement the steps of the communication method as described in any of the first, second, third, fourth, and fifth aspects and their possible embodiments.

[0177] In a sixteenth aspect, embodiments of this disclosure provide a computer program. When this computer program is run on a computer, it causes the computer to perform the communication methods described in any of the first, second, third, fourth, and fifth aspects and their possible implementations.

[0178] In a seventeenth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry. The processing circuitry is configured to perform the communication methods described in any of the first, second, and possible embodiments thereof.

[0179] It is understood that the aforementioned communication devices, communication systems, storage media, program products, computer programs, chips, and chip systems are all used to execute the methods provided in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0180] This disclosure provides a communication method, a communication device, a communication system, a storage medium, and a program product. In some embodiments, terms such as communication method, information processing method, and information transmission method can be used interchangeably; terms such as communication device, communication equipment, network equipment, network function, and network entity can be used interchangeably; and terms such as communication system and information processing system can be used interchangeably.

[0181] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0182] In the embodiments disclosed herein, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the various embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0183] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0184] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0185] In the embodiments of this disclosure, "a plurality of" means two or more.

[0186] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0187] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0188] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0189] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0190] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0191] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0192] In some embodiments, terms such as “greater than,” “more than,” “higher than,” and “exceeding” can be used interchangeably; terms such as “greater than or equal to,” “not less than,” “more than or equal to,” “not less than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably; terms such as “less than,” “less than,” and “lower than” can be used interchangeably; and terms such as “less than or equal to,” “not greater than,” “less than or equal to,” “not more than,” “lower than or equal to,” “not higher than,” and “below” can be used interchangeably.

[0193] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0194] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0195] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0196] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0197] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0198] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0199] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0200] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0201] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0202] Figure 1A is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure. As shown in Figure 1A, the communication system 100 includes a terminal 101 and a network device 102. The network device 102 can be at least one of an access network device and a core network device.

[0203] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0204] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0205] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0206] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0207] In some embodiments, the communication system 100 may include a 5G communication system (5GS) or a 6G communication system (6GS). It should be noted that the communication system 100 may also be other communication systems, such as a 4G communication system (LTE), and this disclosure does not specifically limit it.

[0208] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0209] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0210] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or some of the main components in the communication system 100, but are not limited thereto. The main components shown in FIG1A are illustrative. The communication system 100 may include all or some of the main components in 1, or may include other main components besides 1. The number and form of each main component are arbitrary. Each main component may be physical or virtual. The connection relationship between the main components is illustrative. The main components may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0211] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0212] With the development of communication technology, 5G base stations in NR systems have higher bit rates and speeds, but their power consumption is four times that of 4G. Base station energy consumption results in significant network operation and maintenance costs for operators, and this cost is continuously increasing. Therefore, network energy saving is a major concern for operators' network operations. Data shows that electricity costs account for approximately 40% of operators' total network operation expenses. Based on the current 2.384 million 5G base stations, the annual electricity cost for 5G base stations alone exceeds 10 billion yuan.

[0213] Therefore, to conserve base station energy, the Network Energy Saving (NES) project was launched. When the network enters energy-saving mode, i.e., NES mode, cells periodically refrain from transmitting and / or receiving signals at certain intervals; this is known as discontinuous transmission (DTX) or discontinuous reception (DRX). In some embodiments, the master information block (MIB), system information block (SIB), paging, and random access channel (RACH) can be transmitted and received.

[0214] In some embodiments, the following four NES functions are supported: synchronization signal block-less secondary cell (SSB-less SCell), cell DTX and / or DRX (cell DTX / DRX), antenna port adaptation, and physical downlink share channel (PDSCH) transmission power adaptation.

[0215] In some embodiments, for cell DTX / DRX, the network side configures the cell DTX / DRX operating pattern via dedicated RRC signaling, including the configuration period, offset, and onduration duration. During the onduration, the cell is active and can receive and transmit data. Other times are inactive, and the network side generally does not receive or transmit data during these times, except in special circumstances, such as paging, SSB, MIB, SIB, and RACH processes, which are unaffected and proceed normally.

[0216] In some embodiments, the downlink control information (DCI) format 2_9 (e.g., DCI format 2_9) is a group common DCI, used to notify the terminal about the activation or deactivation of the cell DTX / DRX.

[0217] In some embodiments, NES may also include cell switch-off. Due to cell DTX / DRX activation or cell switch-off, NES-enabled terminals may become inoperable or unable to meet high-performance requirements. In this case, the terminal needs to switch to another cell. To address this, conditional handover (CHO) for NES is introduced. Simultaneously, a 1-bit DCI-based instruction is proposed to trigger the handover; that is, if the NES CHO handover condition is met and a DCI handover instruction is received from the network side, the terminal performs the handover. In one embodiment, the DCI handover instruction can be DCI format 2_9, which reuses the DCI notifying cell DTX / DRX activation / deactivation.

[0218] In some embodiments, in an NR system, the content broadcast by the system may include MIB, remaining minimum system information (RMSI), and other system information (OSI). Here, RMSI is SIB1, and OSI refers to other SIBs, such as SIBx, where x is a positive integer.

[0219] In some embodiments, SIB1 is configured with configuration parameters related to cell selection, cell access, OSI scheduling, cell common configuration, access control, and cell capability-related configuration information. The control resource set (CORESET) of SIB1 is configured in MIB. The multiplexing relationship between the SIB1 CORESET and SSB resources includes three types: time division multiplexing (TDM), TDM, and frequency division multiplexing (FDM), FDM. The terminal obtains the resource location of the physical downlink control channel (PDCCH) based on the RMSI CORESET information (i.e., the SIB1 CORESET) in the physical broadcast channel (PBCH), thereby further receiving the RMSI (i.e., SIB1).

[0220] Figure 1B is a schematic diagram of the reuse relationship between the CORESET and SSB resources of SIB1 according to an embodiment of the present disclosure. As shown in Figure 1B, (1) shows that the relationship between the CORESET and SSB resources of SIB1 is TDM; (2) shows that the relationship between the CORESET and SSB resources of SIB1 is TDM and FDM; (3) shows that the relationship between the CORESET and SSB resources of SIB1 is FDM.

[0221] In some embodiments of NR, to conserve network resources and reduce the amount of system information broadcast by default by the base station, a request-based system broadcast transmission is proposed. Except for MIBs and SIB1, other SIBs can be requested on demand; that is, the base station only broadcasts after receiving an SI request from a terminal, rather than broadcasting periodically.

[0222] In one embodiment, SIB1 contains an indication of whether each SI is being broadcast. The terminal can determine which SIBs require an SI request by reading SIB1. In one embodiment, the SI request methods include message 1-based (MSG1-based) SI requests and message 3-based (MSG3-based) SI requests. MSG1-based SI requests are based on reserved preamble and / or RACH resources. MSG3-based SI requests do not require a reserved preamble and are defined as an RRC System Info Request message, which can also be referred to as MSG3.

[0223] In some embodiments, the terminal determines whether to use MSG1-based or MSG3-based SI requests by reading system information. If the base station provides SI request configuration information, i.e., si-Request-Config, in the system information (such as SIB1), the terminal uses an MSG1-based SI request; otherwise, it uses an MSG3-based SI request.

[0224] In some embodiments, after receiving confirmation of an SI request, the terminal may receive an SI within the current SI change cycle until the SI change cycle ends or the SI is received. If RACH fails during the SI request process, the subsequent behavior of the terminal depends on the terminal implementation.

[0225] In some embodiments, SI requests from terminals in RRC connected state (RRC_CONNECTED) are not supported.

[0226] In some embodiments, on-demand requests for SIB1 are supported. However, the terminal needs pre-configured information to initiate the process of requesting SIB1. For example, the terminal obtains the configuration information of the requested neighboring cell's SIB1 from a neighboring cell.

[0227] In some embodiments, the terminal obtains the configuration for requesting SIB1 from cell A, such as the configuration information of the uplink wake-up signal (UL WUS). In one embodiment, if radio resource management (RRM) measurements trigger a cell reselection evaluation of a candidate cell, the terminal initiates a random access procedure to the NES cell based on the UL WUS configuration information, and then receives SIB1 based on sending MSG1 and receiving MSG2 (such as a random access response (RAR)).

[0228] In some embodiments, if a terminal wants to reselect a neighboring cell while performing the first service, the terminal needs to request the neighboring cell's SIB1. Therefore, how the terminal can request system messages on demand while performing the first service is a problem that needs to be solved.

[0229] To address the aforementioned issues, embodiments of this disclosure provide a communication method, communication device, communication system, storage medium, and program product, enabling a terminal to request system messages on demand when performing a first service, without needing to frequently broadcast and receive messages, thereby reducing the energy consumption of the terminal and network.

[0230] Figure 2A is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. The communication method involved in this embodiment can be applied to a communication system 100. As shown in Figure 2A, the communication method of this embodiment includes steps S2101 to S2107.

[0231] In some embodiments, the terminal can perform a first service with network equipment within a first cell. In one embodiment, the first service can be a service that the terminal can execute in the RRC disconnected state. In one example, the first service can be a small data transmission (SDT) service, a sidelink (SL) service, a positioning service, etc. Of course, the first service can also be other services, and this disclosure does not specifically limit them.

[0232] In some embodiments, the first network device can send configuration information of a second cell to the terminal via the first cell. This configuration information is used by the terminal to request system information on the second cell. In one example, the configuration information of the second cell may be the UL WUS configuration information of the second cell.

[0233] In some embodiments, the first cell is the cell where the terminal is currently camped, also referred to as the terminal's camped cell. In one embodiment, the second cell can be a neighboring cell of the first cell, and the second cell can serve as a candidate cell for the terminal to perform cell reselection. In one embodiment, the second cell can be the first cell, i.e., the terminal's camped cell. In one embodiment, the second cell can be an NES cell, that is, a cell that supports NES.

[0234] In some embodiments, the first cell belongs to a first network device, and the second cell belongs to a second network device. In one embodiment, the first cell and the second cell may belong to the same network device, i.e., the first network device and the second network device are the same network device. In another embodiment, the first cell and the second cell may belong to different network devices, i.e., the first network device and the second network device are different network devices.

[0235] In some embodiments, when the second cell is the terminal's designated cell, the terminal is prohibited from requesting system information on the designated cell while simultaneously performing the first service on that cell. In other words, the terminal is prohibited from simultaneously performing the first service and requesting system information on demand on the designated cell.

[0236] In some embodiments, the system information of the second cell requested by the terminal may include the terminal's initial access information, such as RSMI or SIB1. In one example, the terminal's on-demand request for system information can be described as on-demand SIB1.

[0237] The following explanation uses SDT service as an example to illustrate the above communication method.

[0238] In step S2101, the terminal performs SDT services on the first cell.

[0239] In some embodiments, the terminal is in an RRC non-connected state, such as an RRC inactive state or an RRC idle state.

[0240] In some embodiments, the terminal is in an RRC disconnected state within the first cell. In this state, the terminal can perform SDT on the first cell. At this time, the terminal does not need to enter the RRC connected state and remains in the RRC inactive or RRC idle state.

[0241] In step S2102, the terminal stops performing SDT services on the first cell.

[0242] In some embodiments, while performing SDT services, the terminal may determine that cell reselection is required. Based on this, the terminal may determine to initiate an on-demand request process for system information. In one embodiment, the terminal may determine that cell reselection is required based on instructions from a higher layer, and then determine to initiate an on-demand request process for system information. In one embodiment, the terminal may periodically determine that cell reselection is required, and then determine to initiate an on-demand request process for system information. In one embodiment, the terminal may determine that cell reselection is required after moving to a second cell, and then determine to initiate an on-demand request process for system information. Of course, the terminal may also determine that cell reselection is required in other circumstances, and then determine to initiate an on-demand request process for system information; this disclosure does not specifically limit this. In one embodiment, the terminal may determine to initiate an on-demand request process for SIB1, that is, the terminal determines to request on-demand SIB1.

[0243] In some embodiments, when a terminal determines that it is initiating an on-demand request process for system information, in order to avoid affecting the ongoing SDT service, the terminal may first terminate the SDT service, that is, stop the transmission of SDT data.

[0244] In some embodiments, the terminal stopping the SDT service can be understood as the terminal stopping the timer associated with the SDT service. After the timer stops, the terminal determines that the SDT has ended. In one example, the timer associated with the SDT service can be T319a.

[0245] In step S2103, the terminal sends a second message on the first cell.

[0246] In some embodiments, after the terminal terminates the SDT service, it may send a second message to the first network device on the first cell.

[0247] In some embodiments, the second message may instruct the terminal to stop SDT services. In some embodiments, the second message may instruct the terminal to request system messages on demand in the second cell. In some embodiments, the second message may instruct the terminal to stop SDT services and request system messages on demand in the second cell.

[0248] In some embodiments, the first network device may determine the termination of SDT service based on the indication of the second message.

[0249] In some embodiments, after receiving the second message, the first network device can determine that the terminal has stopped the SDT service based on the second message. In this way, the first network device can reallocate resources; for example, it can reallocate resources originally allocated to the SDT service to other users or services, thereby improving resource utilization. Alternatively, the first network device can enter NES mode to reduce network power consumption.

[0250] In some embodiments, the second message may carry second information, which may indicate the reason why the terminal stops the SDT service. In this case, the reason why the terminal stops the SDT service may be on-demand request system information. In one example, the second information may be on-demand SIB1.

[0251] In some embodiments, the second message may be an uplink message such as an RRC message or a media access control (MAC) control element (CE). Of course, the second message may also be other uplink messages, and this disclosure does not specifically limit them.

[0252] In some embodiments, if the first network device does not receive SDT data from the terminal within a preset time period, for example, if no SDT data is received from the terminal after the timer (T319a) associated with the SDT service expires, then the first network device can determine that the SDT service has ended. In this case, step S2103 can be omitted, and the first network device determines the end of the SDT service on its own.

[0253] In step S2104, the terminal sends a first message on the second cell.

[0254] In some embodiments, after the terminal terminates the SDT service, it determines to send a first message on the second cell to initiate an on-demand request process for system information.

[0255] In some embodiments, the first message is a request for system information from a second cell. In one example, the first message may be message 1 (msg1) during the random access procedure.

[0256] In some embodiments, after determining that a first message will be sent on the second cell, the terminal can send the first message to the second network device on the second cell according to the configuration information of the second cell. In one embodiment, the configuration information of the second cell may include a specific preamble and random access resources in the second cell, wherein the specific preamble is for the terminal to request system information on demand. Thus, the terminal can send a first message carrying the specific preamble on the random access resources indicated by the configuration information to request system information of the second cell from the second network device.

[0257] In some embodiments, a specific preamble may be configured by the network or defined by the protocol, and this disclosure does not specifically limit this.

[0258] In step S2105, the second network device sends a seventh message on the second cell.

[0259] In some embodiments, after receiving the first message, the second network device responds by sending a seventh message to the terminal. In one embodiment, the seventh message is a response message to the first message. In one example, the first message is msg1, and the seventh message can be message 2 (msg2) during the random access procedure.

[0260] In some embodiments, the seventh message may carry configuration information for the system information. This configuration information is used to indicate the resources used by the second network device to send the system information. In one embodiment, the second network device allocates resources for the system information requested on demand by the terminal and indicates this to the terminal via the seventh message, allowing the terminal to receive the system information on the indicated resources. In one embodiment, the second network device may allocate at least one of time-domain resources and frequency-domain resources for the system information requested on demand by the terminal.

[0261] In some embodiments, when the system information is SIB1, the configuration information of the system information can be the configuration information of SIB1. In one embodiment, the configuration information of SIB1 can indicate the PDSCH carrying SIB1, enabling the terminal to receive SIB1 on that PDSCH. In one example, the configuration information of SIB1 can include the time-domain resources and / or frequency-domain resources of the PDSCH carrying SIB1. In one embodiment, the configuration information of SIB1 can indicate the PDCCH associated with SIB1, enabling the terminal to receive the scheduling information of SIB1 on that PDCCH, and then determine the PDSCH carrying SIB1 based on the scheduling information of SIB1, and receive SIB1 on that PDSCH. In one example, the configuration information of SIB1 can include the configuration of the CORESET and search space associated with the scheduling information of SIB1.

[0262] In step S2106, the second network device sends a third message on the second cell.

[0263] In some embodiments, after configuring system information for the terminal, the second network device can send system information to the terminal based on the configuration information. In one embodiment, the second network device can send system information to the terminal via downlink messages such as RRC messages and MAC CE. That is, the third message can be a downlink message such as an RRC message or MAC CE. Of course, the third message can also be other downlink messages, and this disclosure does not specifically limit this.

[0264] In some embodiments, after receiving the seventh message, the terminal receives the third message on the second cell according to the configuration information of the system information carried in the seventh message. In one embodiment, the terminal determines the resource on which the second network device transmits the system information of the second cell according to the configuration information of the system information, and then the terminal receives the system information of the second cell on that resource.

[0265] In some embodiments, when the system information configuration information is the configuration information of SIB1, and the configuration information of SIB1 indicates the PDSCH carrying SIB1, the terminal determines the PDSCH carrying SIB1 based on the configuration information of SIB1. Then, the terminal receives SIB1 on that PDSCH.

[0266] In some embodiments, when the system information configuration information is the configuration information of SIB1, and the configuration information of SIB1 indicates the PDCCH associated with SIB1, the terminal determines the PDCCH carrying the scheduling information of SIB1 based on the configuration information of SIB1. Then, the terminal listens to this PDCCH to obtain the scheduling information of SIB1. Next, the terminal determines the PDSCH carrying SIB1 based on the scheduling information of SIB1, and receives SIB1 on this PDSCH.

[0267] In step S2107, the terminal performs cell reselection.

[0268] In some embodiments, after receiving system information from the second cell, the terminal can determine whether to reselect to the second cell based on the cell reselection parameters carried in the system information, that is, whether the terminal can reselect to the second cell. In one embodiment, if the terminal determines that it needs to reselect to the second cell, then the terminal can initiate random access on the second cell to reselect to the second cell. In one embodiment, if the terminal determines that it does not need to reselect to the second cell, then the terminal can re-execute SDT services on the first cell.

[0269] In one example, Figure 3 is a schematic diagram of a communication system provided according to an embodiment of the present disclosure. As shown in Figure 3, base station 32 and base station 33 have an Xn interface. Base station 32 provides cell 1, and base station 33 provides cell 2. When terminal 31 is camped on cell 1 and is in an idle or deactivated state, terminal 31 and base station 32 perform SDT services on cell 1, and base station 32 sends UL WUS configuration information of cell 2 to terminal 31. If the terminal determines that cell reselection is required, the terminal stops the SDT service on cell 1 and sends message 1 (msg1) to base station 33 to request on-demand SIB1 for cell 2. Base station 33 sends msg2 to terminal 31 to indicate the resource associated with SIB1. The terminal receives SIB1 on the resource associated with SIB1.

[0270] Thus, through the above steps S2101 to S2107, the process of requesting system information on demand when performing SDT services on the terminal is completed.

[0271] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2107. For example, a combination of steps S2101 to S2102 and step S2104 can be implemented as an independent embodiment. For example, a combination of steps S2101 to S2102 and steps S2104 to S2105 can be implemented as an independent embodiment. For example, a combination of steps S2101 to S2102 and steps S2104 to S2106 can be implemented as an independent embodiment. For example, a combination of steps S2101 to S2102 and steps S2104 to S2107 can be implemented as an independent embodiment. For example, a combination of steps S2101 to S2104 can be implemented as an independent embodiment. For example, a combination of steps S2101 to S2105 can be implemented as an independent embodiment. For example, a combination of steps S2101 to S2106 can be implemented as an independent embodiment. For example, a combination of steps S2101 to S2107 can be implemented as an independent embodiment. It should be noted that possible independent embodiments may consist of one or more steps from S2101 to S2107, but are not limited thereto.

[0272] In some embodiments, step S2103 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0273] In some embodiments, step S2105 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0274] In some embodiments, step S2106 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0275] In some embodiments, step S2107 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0276] Figure 2B is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. The communication method involved in this embodiment can be applied to a communication system 100. As shown in Figure 2B, the communication method of this embodiment includes steps S2201 to S2207.

[0277] In some embodiments, the terminal can perform a first service with a first network device within a first cell. In one embodiment, the first service can be a service that the terminal can execute in an RRC-disconnected state. In one example, the first service can be an SDT service, an SL service, a location service, etc. Of course, the first service can also be other services, and this disclosure does not specifically limit it.

[0278] In some embodiments, the first network device can send configuration information of a second cell to the terminal via the first cell. This configuration information is used by the terminal to request system information on the second cell. In one example, the configuration information of the second cell may be the UL WUS configuration information of the second cell.

[0279] In some embodiments, the first cell is the cell where the terminal is currently camped, also referred to as the terminal's camped cell. In one embodiment, the second cell can be a neighboring cell of the first cell, and the second cell can serve as a candidate cell for the terminal to perform cell reselection. In one embodiment, the second cell can be the first cell, i.e., the terminal's camped cell. In one embodiment, the second cell can be an NES cell, that is, a cell that supports NES.

[0280] In some embodiments, the first cell belongs to a first network device, and the second cell belongs to a second network device. In one embodiment, the first cell and the second cell may belong to the same network device, i.e., the first network device and the second network device are the same network device. In another embodiment, the first cell and the second cell may belong to different network devices, i.e., the first network device and the second network device are different network devices.

[0281] In some embodiments, when the second cell is the terminal's designated cell, the terminal is prohibited from requesting system information on the designated cell while simultaneously performing the first service on that cell. In other words, the terminal is prohibited from simultaneously performing the first service and requesting system information on demand on the designated cell.

[0282] In some embodiments, the system information of the second cell requested by the terminal may include the terminal's initial access information, such as RSMI or SIB1. In one example, the terminal's on-demand request for system information can be described as on-demand SIB1.

[0283] The following explanation uses SDT service as an example to illustrate the above communication method.

[0284] In step S2201, the terminal performs SDT services on the first cell.

[0285] The optional implementation of step S2201 can be found in the optional implementation of step S2101 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0286] In step S2202, the terminal sends a first message on the second cell.

[0287] In some embodiments, while performing SDT services, the terminal may determine that cell reselection is required. Based on this, the terminal may determine to initiate an on-demand request process for system information. In one embodiment, the terminal may determine that cell reselection is required based on instructions from higher layers, and then determine to initiate an on-demand request process for system information. In one embodiment, the terminal may periodically determine that cell reselection is required, and then determine to initiate an on-demand request process for system information. In one embodiment, the terminal may determine that cell reselection is required after moving to a second cell, and then determine to initiate an on-demand request process for system information. Of course, the terminal may also determine that cell reselection is required in other circumstances, and then determine to initiate an on-demand request process for system information; this disclosure does not specifically limit this. In one embodiment, the terminal may determine to initiate an on-demand request process for SIB1, that is, the terminal determines to request on-demand SIB1.

[0288] In some embodiments, when a terminal determines to initiate an on-demand request process for system information, it may determine to send a first message on the second cell. In this way, the terminal can directly request system information from the second cell without suspending SDT services.

[0289] In some embodiments, the first message is a request for system information from a second cell. In one example, the first message may be message 1 (msg1) during the random access procedure.

[0290] In some embodiments, after determining that a first message will be sent on the second cell, the terminal can send the first message to the second network device on the second cell according to the configuration information of the second cell. In one embodiment, the configuration information of the second cell may include a specific preamble and random access resources in the second cell, wherein the specific preamble is for the terminal to request system information on demand. Thus, the terminal can send a first message carrying the specific preamble on the random access resources indicated by the configuration information to request system information of the second cell from the second network device.

[0291] In some embodiments, a specific preamble may be configured by the network or defined by the protocol, and this disclosure does not specifically limit this.

[0292] In step S2203, the second network device sends a seventh message on the second cell.

[0293] The optional implementation of step S2203 can be found in the optional implementation of step S2105 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0294] In step S2204, the second network device sends a third message on the second cell.

[0295] The optional implementation of step S2204 can be found in the optional implementation of step S2106 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0296] In step S2205, the terminal stops performing SDT services on the first cell.

[0297] In some embodiments, after receiving system information from the second cell, the terminal can determine whether to reselect the cell to the second cell based on the cell reselection parameters carried in the system information. If the terminal determines that the cell has been reselected to the second cell, then, in order to avoid affecting the ongoing SDT service, the terminal can terminate the SDT service, that is, stop the transmission of SDT data.

[0298] In some embodiments, if the terminal determines that cell reselection to a second cell is unnecessary, the terminal can continue to perform SDT services on the first cell. In this case, steps S2205 to S2207 can be omitted.

[0299] In some embodiments, the terminal stopping the SDT service can be understood as the terminal stopping the timer associated with the SDT service. After the timer stops, the terminal determines that the SDT has ended. In one example, the timer associated with the SDT service can be T319a.

[0300] In step S2206, the terminal sends a second message on the first cell.

[0301] In some embodiments, after the terminal terminates the SDT service, it can send a second message to the first network device on the first cell to instruct the first network device to stop the SDT service. At this time, the first network device can determine that the SDT service has ended.

[0302] In some embodiments, after receiving the second message, the first network device can determine that the terminal has stopped the SDT service based on the second message. In this way, the first network device can reallocate resources; for example, it can reallocate resources originally allocated to the SDT service to other users or services, thereby improving resource utilization. Alternatively, the first network device can enter NES mode to reduce network power consumption.

[0303] In some embodiments, the second message may also carry second information, which may indicate the reason why the terminal stops the SDT service. In this case, the reason why the terminal stops the SDT service may be cell reselection.

[0304] In some embodiments, the second message can be an uplink message such as an RRC message or a MAC CE. Of course, the second message can also be other uplink messages, and this disclosure does not specifically limit this type of message.

[0305] In some embodiments, if the first network device does not receive SDT data from the terminal within a preset time period—for example, if it does not receive SDT data from the terminal after the timer (T319a) associated with the SDT service expires—or if the first network device receives a random access message sent by the terminal on the second cell, then the first network device can determine that the SDT service has ended, and the terminal will reselect the second cell. In this case, step S2203 can be omitted, and the first network device determines the end of the SDT service itself.

[0306] In step S2207, the terminal performs cell reselection.

[0307] In some embodiments, after the terminal stops the SDT service, it initiates random access on the second cell to reselect the second cell.

[0308] In one example, still as shown in Figure 3, there is an Xn interface between base station 32 and base station 33. Base station 32 provides cell 1, and base station 33 provides cell 2. When terminal 31 is camped on cell 1 and in an idle or deactivated state, terminal 31 and base station 32 perform SDT services on cell 1, and base station 32 sends UL WUS configuration information for cell 2 to terminal 31. If the terminal determines that cell reselection is required, the terminal sends message 1 (msg1) to base station 33 while performing SDT services on cell 1 to request on-demand SIB1 for cell 2. Base station 33 sends msg2 to terminal 31 to indicate the resource associated with SIB1. The terminal receives SIB1 on the resource associated with SIB1.

[0309] Thus, through the above steps S2201 to S2207, the process of requesting system information on demand when performing SDT services on the terminal is completed.

[0310] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2207. For example, a combination of steps S2201 to S2204 may be implemented as a standalone embodiment. For example, a combination of steps S2201 to S2205 may be implemented as a standalone embodiment. For example, a combination of steps S2201 to S2206 may be implemented as a standalone embodiment. For example, a combination of steps S2201 to S2205 and step S2207 may be implemented as a standalone embodiment. For example, a combination of steps S2201 to S2207 may be implemented as a standalone embodiment. It should be noted that possible standalone embodiments consisting of one or more steps S2201 to S2207 are possible, but are not limited thereto.

[0311] In some embodiments, step S2205 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0312] In some embodiments, step S2206 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0313] In some embodiments, step S2207 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0314] In some embodiments, steps S2205, S2206, and S2207 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0315] Figure 2C is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. The communication method involved in this embodiment can be applied to a communication system 100. As shown in Figure 2C, the communication method of this embodiment includes steps S2301 to S2306.

[0316] In some embodiments, the terminal can perform a first service with a first network device within a first cell. In one embodiment, the first service can be a service that the terminal can execute in an RRC-disconnected state. In one example, the first service can be an SDT service, an SL service, a location service, etc. Of course, the first service can also be other services, and this disclosure does not specifically limit it.

[0317] In some embodiments, the first network device can send configuration information of a second cell to the terminal via the first cell. This configuration information is used by the terminal to request system information on the second cell. In one example, the configuration information of the second cell may be the UL WUS configuration information of the second cell.

[0318] In some embodiments, the first cell is the cell where the terminal is currently camped, also referred to as the terminal's camped cell. In one embodiment, the second cell can be a neighboring cell of the first cell, and the second cell can serve as a candidate cell for the terminal to perform cell reselection. In one embodiment, the second cell can be the first cell, i.e., the terminal's camped cell. In one embodiment, the second cell can be an NES cell, that is, a cell that supports NES.

[0319] In some embodiments, the first cell belongs to a first network device, and the second cell belongs to a second network device. In one embodiment, the first cell and the second cell may belong to the same network device, i.e., the first network device and the second network device are the same network device. In another embodiment, the first cell and the second cell may belong to different network devices, i.e., the first network device and the second network device are different network devices.

[0320] In some embodiments, when the second cell is the terminal's designated cell, the terminal is prohibited from requesting system information on the designated cell while simultaneously performing the first service on that cell. In other words, the terminal is prohibited from simultaneously performing the first service and requesting system information on demand on the designated cell.

[0321] In some embodiments, the system information of the second cell requested by the terminal may include the terminal's initial access information, such as RSMI or SIB1. In one example, the terminal's on-demand request for system information can be described as on-demand SIB1.

[0322] The following explanation uses SDT service as an example to illustrate the above communication method.

[0323] In step S2301, the terminal performs SDT services on the first cell.

[0324] The optional implementation of step S2201 can be found in the optional implementation of step S2101 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0325] In step S2302, the terminal sends a fourth message to the first network device on the first cell.

[0326] In some embodiments, while performing SDT services, the terminal may determine that cell reselection is required. Based on this, the terminal may determine to initiate an on-demand request process for system information. In one embodiment, the terminal may determine that cell reselection is required based on instructions from a higher layer, and then determine to initiate an on-demand request process for system information. In one embodiment, the terminal may periodically determine that cell reselection is required, and then determine to initiate an on-demand request process for system information. In one embodiment, the terminal may determine that cell reselection is required after moving to a second cell, and then determine to initiate an on-demand request process for system information. Of course, the terminal may also determine that cell reselection is required in other circumstances, and then determine to initiate an on-demand request process for system information; this disclosure does not specifically limit this. In one embodiment, the terminal may determine to initiate an on-demand request process for SIB1, that is, the terminal determines to request on-demand SIB1.

[0327] In some embodiments, when a terminal determines that it needs to initiate an on-demand request process for system information, the terminal may suspend SDT services and perform the on-demand request process for system information within a first time period. In one embodiment, the first time period may be used for the terminal to perform an on-demand request process for system information in a second cell. In another embodiment, the terminal suspends SDT services on the first cell within the first time period.

[0328] In one embodiment, during the first time period, the terminal stops performing SDT services on the first cell, or this can be understood as the terminal suspending SDT services on the first cell. In another embodiment, the terminal prohibits performing SDT services on the time domain resources occupied during the first time period.

[0329] In some embodiments, the first time period is determined by the terminal itself. Therefore, in order to reach a consensus with the first network device, the terminal can send a fourth message to the first network device to notify it of the first time period determined by the terminal.

[0330] In one example, the fourth message can be an uplink message such as an RRC message or a MAC CE. Of course, the fourth message can also be other uplink messages, and this disclosure does not specifically limit this.

[0331] In some embodiments, the fourth message may carry first configuration information for a first time period. This first configuration information is the configuration information for the first time period determined by the terminal, that is, the configuration information for the first time period expected by the terminal.

[0332] In some embodiments, the first configuration information is used to indicate the temporal resources occupied by the first time period. In one embodiment, the first configuration information may indicate at least one of the following: the start position of the first time period, and the length of the first time period.

[0333] In some embodiments, the starting position of the first time period can be the starting time domain resource of the first time period, and the first configuration information can include the identifier of the starting time domain resource. In one example, the time domain resource can be at least one of a system frame, a subframe, or a slot, and correspondingly, the identifier of the starting time domain resource can be a system frame number (SFN), a subframe number, or a slot number.

[0334] In some embodiments, the length of the first time period can be the length of the time domain resources occupied by the first time period, and the first configuration information can include the number of time domain resources occupied by the first time period. In one example, the time domain resources can be at least one of radio frames, subframes, and slots, and correspondingly, the number of time domain resources can be the number of radio frames, the number of subframes, or the number of slots.

[0335] Of course, the above is only an exemplary description of the first configuration information. The first configuration information may also indicate other parameters for the first time period, and this disclosure does not specifically limit this.

[0336] In some embodiments, the fourth message may also carry first information, which is used to indicate that the first network device does not need to acknowledge the fourth message. In one embodiment, when the terminal notifies the first network device of a first time period, in order to save signaling and reduce latency, the terminal may carry the first information in the fourth message to indicate that the first network device does not need to acknowledge the fourth message. In this way, the terminal can directly use the time domain resources indicated by the first configuration information to determine the first time period.

[0337] In some embodiments, the fourth message may also carry third information, which is used to instruct the first network device to acknowledge the fourth message. In one embodiment, when the terminal notifies the first network device of a first time period, the terminal may carry third information in the fourth message to instruct the first network device to acknowledge the fourth message. Thus, the terminal waits for acknowledgment from the first network device and cannot directly use the time-domain resources indicated by the first configuration information to determine the first time period. After determining the first configuration information, the first network device may send an acknowledgment message to the terminal.

[0338] In some embodiments, the first time period is configured by the first network device. Then, the terminal can send a fifth message to the first network device to request the first time period. In one example, the fifth message can be an uplink message such as an RRC message or a MAC CE. Of course, the fifth message can also be other uplink messages, and this disclosure does not specifically limit this type of message.

[0339] In some embodiments, after receiving the fifth message, the first network device allocates time-domain resources to the terminal as a first time period and sends a sixth message to the terminal. In one embodiment, the sixth message can be a response message to the fifth message. In another embodiment, the sixth message can be a downlink message such as an RRC message or a MAC CE. Of course, the sixth message can also be other downlink messages, and this disclosure does not specifically limit them.

[0340] In some embodiments, the sixth message may carry second configuration information for the first time period. This second configuration information is the configuration information for the first time period configured by the first network device; that is, the configuration information for the first time period that the first network device allows the terminal to use.

[0341] In some embodiments, after step S2301, step S2302 is executed. Then, after receiving the fourth message, the first network device can determine the second configuration information based on the first configuration information, and then send a sixth message to the terminal to indicate the second configuration information. In one embodiment, the first configuration information and the second configuration information can be the same or different. That is, the time-domain resource determined by the terminal as the first time period and the time-domain resource configured by the first network device as the first time period can be the same time-domain resource or different time-domain resources. In one example, the first network device can determine the first configuration information as the second configuration information based on the current resource allocation. In one example, the first network device can adjust the first configuration information based on the current resource allocation to determine the second configuration information. In one example, the first network device can determine new configuration information as the second configuration information based on the current resource allocation; in this case, the new configuration information is unrelated to the first configuration information.

[0342] In some embodiments, the second configuration information is similar to the first configuration information, used to indicate the temporal resources occupied by the first time period. In one embodiment, the second configuration information may indicate at least one of the following: the start position of the first time period, and the length of the first time period. For details, please refer to the specific description of the first configuration information above, which will not be repeated here.

[0343] In some embodiments, when the first network device sends a sixth message after receiving the fourth message, the fourth message may carry third information.

[0344] In some embodiments, besides the methods described above, the first time period can be periodic. In one example, the first network device can configure multiple first time periods for the terminal, so that the terminal can send the first message in the most recent first time period when it needs to initiate a process of requesting system information on demand. Of course, the first time period can also be configured in other ways, and this disclosure does not specifically limit it.

[0345] In some embodiments, the aforementioned time period may also be described as duration, time window, time range, time interval, etc., and the embodiments disclosed herein do not specifically limit this.

[0346] In step S2303, the terminal sends a first message on the second cell within a first time period.

[0347] In some embodiments, after obtaining configuration information for a first time period (such as first configuration information or second configuration information), the terminal determines the time domain resources occupied by the first time period based on the configuration information. Then, the terminal sends a first message on the second cell using the time domain resources occupied by the first time period.

[0348] In some embodiments, the first message is a request for system information from a second cell. In one example, the first message may be message 1 (msg1) during the random access procedure.

[0349] In some embodiments, after determining that a first message will be sent on the second cell, the terminal can send the first message to the second network device on the second cell according to the configuration information of the second cell. In one embodiment, the configuration information of the second cell may include a specific preamble and random access resources in the second cell, wherein the specific preamble is for the terminal to request system information on demand. Thus, the terminal can send a first message carrying the specific preamble on the random access resources indicated by the configuration information to request system information of the second cell from the second network device.

[0350] In some embodiments, a specific preamble may be configured by the network or defined by the protocol, and this disclosure does not specifically limit this.

[0351] In step S2304, the second network device sends a seventh message on the second cell.

[0352] The optional implementation of step S2304 can be found in the optional implementation of step S2105 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0353] In step S2305, the second network device sends a third message on the second cell.

[0354] The optional implementation of step S2305 can be found in the optional implementation of step S2106 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0355] In step S2306, the terminal stops the SDT service on the first cell and performs cell reselection.

[0356] In some embodiments, after receiving system information from the second cell, the terminal can determine whether to reselect to the second cell based on the cell reselection parameters carried in the system information, that is, whether the terminal can reselect to the second cell. In one embodiment, if the terminal determines that it can reselect to the second cell, then the terminal can initiate random access on the second cell to reselect to the second cell. In one embodiment, if the terminal determines that it cannot reselect to the second cell, then the terminal can continue to perform SDT services on the first cell.

[0357] In some embodiments, if the terminal determines that the cell has been reselected to a second cell, the terminal may stop the SDT service on the first cell and initiate random access on the second cell. In one embodiment, if the terminal determines that the cell has been reselected to a second cell, then the terminal initiates random access on the second cell before the end of a first time period and stops the SDT service on the first cell after the end of the first time period. In another embodiment, if the terminal determines that the cell has been reselected to a second cell, then the terminal stops the SDT service on the first cell after the end of the first time period and then initiates random access on the second cell. Of course, the terminal may also perform the stopping of the SDT service on the first cell and the cell reselection in other ways, and this disclosure does not specifically limit this approach.

[0358] In some embodiments, if the terminal determines that it cannot reselect to the second cell, the terminal can continue to perform SDT services on the first cell after the first time period ends.

[0359] In one example, still as shown in Figure 3, there is an Xn interface between base station 32 and base station 33. Base station 32 provides cell 1, and base station 33 provides cell 2. When terminal 31 is camped on cell 1 and in an idle or deactivated state, terminal 31 and base station 32 perform SDT services on cell 1, and base station 32 sends UL WUS configuration information for cell 2 to terminal 31. If the terminal determines that cell reselection is required, the terminal requests a gap from base station 32, and the terminal stops SDT services on cell 1 during this gap. During the gap, the terminal sends message 1 (msg1) to base station 33 to request on-demand SIB1 for cell 2. Base station 33 sends msg2 to terminal 31 to indicate the resources associated with SIB1. The terminal receives SIB1 on the resources associated with SIB1.

[0360] Thus, through the above steps S2301 to S2306, the process of requesting system information on demand when performing SDT services on the terminal is completed.

[0361] The communication method involved in the embodiments of this disclosure may include at least one of steps S2301 to S2306. For example, a combination of steps S2301 to S2302 can be implemented as a standalone embodiment. For example, a combination of steps S2301 to S2302 and step S2304 can be implemented as a standalone embodiment. For example, a combination of steps S2301 to S2302 and steps S2304 to S2305 can be implemented as a standalone embodiment. For example, a combination of steps S2301 to S2302 and steps S2304 to S2306 can be implemented as a standalone embodiment. For example, a combination of steps S2301 to S2303 can be implemented as a standalone embodiment. For example, a combination of steps S2301 to S2304 can be implemented as a standalone embodiment. For example, a combination of steps S2301 to S2305 can be implemented as a standalone embodiment. For example, a combination of steps S2301 to S2306 can be implemented as a standalone embodiment. It should be noted that one or more of steps S2301 to S2306 constitute possible independent embodiments, but are not limited thereto.

[0362] In some embodiments, step S2303 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0363] In some embodiments, step S2306 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0364] In one example, Figure 3 is a schematic diagram of a communication system provided according to an embodiment of the present disclosure. As shown in Figure 3, terminal 31 and base station 32 perform SDT services on cell 1, and base station 32 sends UL WUS configuration information of cell 2 to terminal 31. Cell 2 belongs to base station 33. The terminal sends message 1 (msg1) to base station 33 to request on-demand SIB1 of cell 2.

[0365] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0366] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0367] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0368] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0369] In some embodiments, terms such as "certain", "preset", "default", "set", "indicated", "a certain", "any", and "first" can be used interchangeably. "Certain A", "preset A", "default A", "set A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0370] In some embodiments, "neighboring cell" and "neighboring cell" are interchangeable.

[0371] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0372] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0373] Figure 4A is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. The communication method involved in this embodiment can be applied to a communication system 100. As shown in Figure 4A, the communication method of this embodiment includes steps S4101 to S4103.

[0374] In step S4101, the terminal performs the first service on the first cell.

[0375] The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0376] In step S4102, the terminal stops performing the first service on the first cell.

[0377] The optional implementation of step S4102 can be found in the optional implementation of step S2102 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0378] In step S4103, the terminal sends a first message on the second cell.

[0379] The optional implementation of step S4103 can be found in the optional implementation of step S2104 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0380] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0381] Figure 4B is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. The communication method involved in this embodiment can be applied to a communication system 100. As shown in Figure 4B, the communication method of this embodiment includes steps S4201 to S4202.

[0382] In step S4201, the terminal performs the first service on the first cell.

[0383] The optional implementation of step S4201 can be found in the optional implementation of step S2101 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0384] In step S4202, the terminal sends a first message on the second cell.

[0385] The optional implementation of step S4202 can be found in the optional implementation of step S2202 in Figure 2B, as well as other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0386] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0387] Figure 4C is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. The communication method involved in this embodiment can be applied to a communication system 100. As shown in Figure 4C, the communication method of this embodiment includes steps S4301 to S4303.

[0388] In step S4301, the terminal performs the first service on the first cell.

[0389] The optional implementation of step S4301 can be found in the optional implementation of step S2101 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0390] In step S4302, the terminal sends a fourth message on the first cell.

[0391] The optional implementation of step S4302 can be found in the optional implementation of step S2302 in Figure 2C, as well as other related parts in the embodiments involved in Figure 2C, which will not be repeated here.

[0392] In step S4303, the terminal sends a first message on the second cell within a first time period.

[0393] The optional implementation of step S4303 can be found in the optional implementation of step S2304 in Figure 2C, as well as other related parts in the embodiments involved in Figure 2C, which will not be repeated here.

[0394] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0395] In some embodiments, the communication method disclosed herein can be applied to a communication system. The communication method in this embodiment includes: when performing a first service on a first cell, a terminal sends a first message on a second cell.

[0396] The optional implementations of the above steps can be found in the optional implementations of step S2104 in Figure 2A, step S2202 in Figure 2B, and step S2304 in Figure 2C, as well as other related parts in the embodiments involved in Figures 2A, 2B, and 2C, which will not be repeated here.

[0397] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0398] In the following, the technical solutions of the embodiments of this disclosure will be described by way of specific implementation.

[0399] In some embodiments, if the UE is performing an SDT procedure, and if the UE has neighbor cell UL WUS configuration information at this time, and if the UE wants to initiate an on-demand SIB1 procedure to a certain NES neighbor cell, the UE performs the following operations:

[0400] In one embodiment, the UE stops timer T319a and considers the SDT to have ended, then initiates the on-demand SIB1 procedure to the NES cell, that is, sends msg1 and waits for msg2 to be received.

[0401] In one embodiment, the UE may notify the current serving cell (or camped cell) about stopping the SDT process before or after the stop timer T319a. This notification may be sent in RRC signaling or MAC CE. In another embodiment, the reason for stopping the SDT may be further indicated as on-demand SIB1.

[0402] In some embodiments, if the UE is performing an SDT procedure, and if the UE has neighbor cell UL WUS configuration information at this time, and if the UE wants to initiate an on-demand SIB1 procedure to a certain NES neighbor cell, the UE performs the following operations:

[0403] In one embodiment, the UE does not notify the network side or stop the SDT process, but directly initiates the on-demand SIB1 process to the neighboring NES cell, that is, sends msg1 and waits for msg2 to be received.

[0404] In one embodiment, after the UE obtains SIB1, it determines whether cell reselection can occur. If it determines that the cell can be reselected, the UE stops timer T319a and considers the SDT to have ended.

[0405] In some embodiments, if the UE is performing an SDT procedure, and if the UE has neighbor cell UL WUS configuration information at this time, and if the UE wants to initiate an on-demand SIB1 procedure to a certain NES neighbor cell, the UE performs the following operations:

[0406] In one embodiment, the UE initiates a Gap (e.g., a first time period) request procedure to the current cell. The gap is used by the UE to leave the current serving cell and initiate an on-demand SIB1 procedure to the NES cell. The Gap request message can be RRC signaling or MAC CE. The parameters of the Gap request can be: the radio frame (SFN) at the start of the gap, a subframe, at least one of the slots, the gap length, etc. In one embodiment, it can also carry an indication that the Gap request does not require network-side confirmation. If network-side confirmation is required, the network side replies to the UE with the gap configuration. The gap configuration can be: the radio frame (SFN) at the start of the gap, a subframe, at least one of the slots, the gap length, etc.

[0407] In some embodiments, the above embodiments may be for the UE to initiate an on-demand SIB1 procedure to a neighboring NES cell. If the on-demand SIB1 procedure is to the current serving cell, the above embodiments can also be used. However, additionally: if SDT is in progress, it is not allowed to initiate an on-demand SIB1 procedure to the current serving cell.

[0408] In some embodiments, the UE is in a disconnected state.

[0409] In some embodiments, the above scheme is just an example of SDT, but it can also be other services, such as SL service, location service, etc.

[0410] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0411] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, this disclosure proposes an apparatus that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0412] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through a configuration file, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0413] In this disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a central processing unit (CPU), microprocessor, graphics processing unit (GPU) (which can be understood as a type of microprocessor), or digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (FPGA). In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), tensor processing unit (TPU), deep learning processing unit (DPU), etc.

[0414] Figure 5 is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure. As shown in Figure 5, the communication device 500 may include at least one of the following: a transceiver module 501 and a processing module 502.

[0415] In some embodiments, the communication device 500 can be a terminal. In some embodiments, the transceiver module 501 is configured to perform a first service with a first network device in a first cell; and to send a first message to a second network device in a second cell, the first message being used to request system information of the second cell. Optionally, the transceiver module 501 and the processing module 502 are configured to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, which will not be elaborated here. Optionally, the processing module 502 can be configured to perform at least one of the other steps besides the communication steps such as sending and / or receiving, which will not be elaborated here.

[0416] In some embodiments, the communication device 500 may be a first network device. In some embodiments, the transceiver module 501 is configured to perform a first service with the terminal on a first cell. Optionally, the transceiver module 501 may be used to perform at least one of the communication steps such as sending and / or receiving performed by the first network device in any of the above methods, which will not be elaborated here. Optionally, the processing module 502 is used to perform at least one of the other steps performed by the first network device in any of the above methods besides the communication steps such as sending and / or receiving, which will not be elaborated here.

[0417] In some embodiments, the communication device 500 may be a second network device. In some embodiments, the transceiver module 501 is configured to receive a first message sent by a terminal to the second network device on a second cell, the first message being used to request system information of the second cell. Optionally, the transceiver module 501 may be used to perform at least one of the communication steps such as sending and / or receiving performed by the second network device in any of the above methods, which will not be elaborated here. Optionally, the processing module 502 is used to perform at least one of the other steps performed by the second network device in any of the above methods besides the communication steps such as sending and / or receiving, which will not be elaborated here.

[0418] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module. The transmitting and receiving modules may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0419] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0420] In some embodiments, the storage module may optionally be interchanged with the memory.

[0421] Figure 6A is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure. The communication device 6100 may be at least one of a terminal, a first network device, and a second network device, or it may be a chip, chip system, or processor that supports at least one of the terminal, the first network device, and the second network device in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0422] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 can be used to execute any of the above methods. Optionally, one or more processors 6101 can be used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0423] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above-described method, and the processor 6101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0424] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may be located outside the communication device 6100. In optional embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and can be used to receive data from the memories 6103 or other devices, and to send data to the memories 6103 or other devices. For example, the interface circuits 6104 can read data stored in the memories 6103 and send that data to the processor 6101.

[0425] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (6) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (7) others, etc.

[0426] Figure 6B is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of the chip 6200 shown in Figure 6B, but it is not limited thereto.

[0427] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0428] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of the memories 6203 may be located outside chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data from memory 6203 or other devices, and interface circuit 6202 can be used to send data to memory 6203 or other devices. For example, interface circuit 6202 can read data stored in memory 6203 and send the data to processor 6201.

[0429] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0430] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0431] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 6100, cause the communication device 6100 to perform any of the methods described above. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0432] This disclosure also proposes a program product that, when executed by a communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0433] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0434] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are considered as one example only.

[0435] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A communication method, executed by a terminal, the method comprising: The first network device performs the first service in the first cell; A first message is sent from the second cell to the second network device, the first message being used to request system information from the second cell.

2. The method according to claim 1, wherein, The second cell is a network energy-saving NES cell.

3. The method according to claim 1 or 2, wherein, The terminal is in a non-connected state under Radio Resource Control (RRC).

4. The method according to any one of claims 1 to 3, wherein, Sending the first message to the second network device on the second cell includes: After the first service is stopped, the first message is sent to the network device on the second cell according to the configuration information of the second cell.

5. The method according to claim 4, wherein, The method further includes: A second message is sent from the first cell to the first network device, the second message being used to notify the terminal to stop the first service.

6. The method according to claim 5, wherein, The second message is also used to notify the terminal to request system information of the second cell as needed.

7. The method according to any one of claims 1 to 3, wherein, Sending the first message to the second network device on the second cell includes: While performing the first service on the first cell, the first message is sent to the second network device on the second cell according to the configuration information of the second cell.

8. The method according to claim 7, wherein, The method includes: The system receives a third message sent by the second network device on the second cell, the third message carrying the system information. If the system determines that the cell has been reselected to the second cell based on the system information, the first service is terminated.

9. The method according to any one of claims 4 to 8, wherein, Stopping the first service includes stopping the timer associated with the first service.

10. The method according to any one of claims 1 to 3, wherein, Sending the first message to the second network device on the second cell includes: During the first time period, the first message is sent to the second network device on the second cell according to the configuration information of the second cell.

11. The method according to claim 10, wherein, The method further includes: The first service shall be suspended during the first time period.

12. The method according to claim 10 or 11, wherein, The method further includes: A fourth message is sent to the first network device on the first cell, the fourth message being used to notify the terminal of the first configuration information determined for the first time period.

13. The method according to claim 12, wherein, The fourth message carries first information, which is used to indicate that the first network device does not acknowledge the fourth message.

14. The method according to any one of claims 10 to 13, wherein, The method further includes: Send a fifth message on the first network device in the first cell, the fifth message being used to request the first time period; The sixth message sent by the first network device is received on the first cell, and the sixth message carries the second configuration information of the first time period.

15. The method according to any one of claims 4 to 14, wherein, The configuration information of the second cell is sent by the first network device to the terminal on the first cell.

16. The method according to any one of claims 1 to 14, wherein, When the terminal is performing the first service on the first cell, it is prohibited from sending the first message on the first cell.

17. A communication method performed by a first network device, the method comprising: The terminal performs the first service on the first cell.

18. The method according to claim 17, wherein, The terminal is in a non-connected state under Radio Resource Control (RRC).

19. The method according to claim 17 or 18, wherein, The method further includes: The configuration information of the second cell sent to the terminal on the first cell is used by the terminal to send a first message to the second network device on the second cell. The first message is used to request system information of the second cell.

20. The method according to claim 19, wherein, The second cell is a network energy-saving NES cell.

21. The method according to claim 19 or 20, wherein, The first service was stopped before the terminal sent the first message on the second cell.

22. The method according to claim 21, wherein, The method further includes: The terminal receives a second message sent by the terminal to the first network device on the first cell. The second message is used to notify the terminal to stop the first service.

23. The method according to claim 21, wherein, The method further includes: The terminal receives a second message sent by the terminal to the first network device on the first cell. The second message is used to notify the terminal to request system information of the second cell as needed.

24. The method according to claim 19 or 20, wherein, The first service is stopped when the terminal determines that the cell has been reselected to the second cell based on the system information of the second cell. The system information of the second cell is obtained by the terminal by sending the first message while performing the first service.

25. The method according to any one of claims 21 to 24, wherein, The first service being stopped includes: the timer associated with the first service being stopped.

26. The method according to any one of claim 19 or 20, wherein, The first service is suspended during a first time period, during which the terminal sends the first message.

27. The method according to any one of claims 26, wherein, The method includes: The terminal receives a fourth message sent on the first cell, the fourth message being used to notify the terminal of the first configuration information determined for the first time period.

28. The method according to claim 27, wherein, The fourth message carries first information, which is used to indicate that the network device does not acknowledge the fourth message.

29. The method according to claim 26, wherein, The method includes: Receive a fifth message sent by the terminal on the first cell, the fifth message being used to request knowledge of the first time period; A sixth message is sent to the terminal on the first cell, the sixth message carrying the second configuration information of the first time period.

30. A communication method performed by a second network device, the method comprising: The receiving terminal sends a first message to the second network device on the second cell, the first message being used to request system information of the second cell.

31. The method according to claim 30, wherein, The second cell is a network energy-saving NES cell.

32. The method according to claim 30 or 31, wherein, The terminal is in a non-connected state under Radio Resource Control (RRC).

33. The method according to any one of claims 30 to 32, wherein, The method further includes: A third message is sent to the terminal. The third message is sent by the second network device after receiving the first message. The third message carries the system information.

34. The method according to any one of claims 30 to 32, wherein, The first message is sent by the terminal on the second cell after it stops the first service on the first cell, based on the configuration information of the second cell.

35. The method according to any one of claims 30 to 32, wherein, The first message is sent by the terminal on the second cell while performing the first service on the first cell, based on the configuration information of the second cell.

36. The method according to any one of claims 30 to 32, wherein, The first message is sent by the terminal on the second cell within a first time period according to the configuration information of the second cell.

37. The method according to any one of claims 30 to 36, wherein, The configuration information of the second cell is sent from the first network device to the terminal on the first cell.

38. A communication device, wherein, The communication device is used to perform the communication method as described in any one of claims 1 to 16, 17 to 29, and 30 to 37.

39. A communication system, comprising a terminal, a first network device, and a second network device, wherein, The terminal is configured to implement the communication method as described in any one of claims 1 to 16, the first network device is configured to implement the communication method as described in any one of claims 17 to 29, and the second network device is configured to implement the communication method as described in any one of claims 30 to 37.

40. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the communication method as described in any one of claims 1 to 16, 17 to 29, and 30 to 37.

41. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, it implements the communication method as described in any one of claims 1 to 16, 17 to 29, and 30 to 37.

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