Information indication method and apparatus

Abstract

Embodiments of the present application disclose an information indication method and apparatus. The method comprises: receiving a synchronization signal transmitted by a network device in a polarization direction; on the basis of the polarization direction of the synchronization signal, determining a cell access parameter of a cell where a terminal device is located. Using embodiments of the present application, the polarization direction of a synchronization signal implicitly indicates a cell access parameter of a cell where a terminal device is located, so that the terminal device obtains, in advance, information that can only be acquired after the terminal device accesses the cell. Thus, the complexity of the terminal device searching for a cell and accessing the cell is reduced, and no additional signaling overhead is introduced.

Description

Information indication method and device

[0001] The present application claims priority to the Chinese patent application No. 202410881428.5, filed on July 2, 2024, with the State Intellectual Property Office of China, and the Chinese patent application No. 202410881428.5 has the title of "Information indication method and device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to an information indication method and device. BACKGROUND

[0003] Satellite communication has its unique advantages compared with ground communication, for example, it can provide wider coverage, and satellite base stations are not easily damaged by natural disasters or external forces. For future 5th-Generation (5G) communication, if satellite communication is introduced, it can provide communication services for some areas that cannot be covered by ground communication networks, such as oceans and forests. It can enhance the reliability of 5G communication, for example, to ensure that airplanes, trains, and users on these vehicles obtain better communication services. It can provide more data transmission resources for 5G communication and improve network speed. Therefore, supporting communication with both ground and satellite at the same time is an inevitable trend for future 5G communication, which has great benefits in terms of wide coverage, reliability, multi-connection, and high throughput. The biggest feature of satellite communication is large round-trip transmission delay, and terminal devices need to perform frequent beam and cell switching due to the movement of satellites. Therefore, the integration of satellite and 5G communication requires enhancing the existing 5G protocol to adapt to satellite communication.

[0004] When a terminal device searches for a cell, the complexity of detecting a synchronization signal and accessing the cell by the terminal device is increased due to the terminal device not knowing cell access parameters. For example, when the terminal device searches for a cell, it receives a downlink synchronization signal according to a default period of 20 ms. The period of the downlink synchronization signal of a cell is at most 160 ms. Even if the network side transmits the downlink synchronization signal according to a period other than 20 ms, since the terminal device does not know the period of the downlink synchronization signal transmitted by the network side at the initial access, it can only detect the downlink synchronization signal using a smaller period to determine whether there is a cell at the current frequency. Moreover, with the evolution of the standard, the network side can support larger downlink synchronization signal periods and other features. Using a smaller default period for detection increases the complexity of the terminal device searching for a cell. SUMMARY

[0005] The embodiments of the present application provide an information indication method and device, which enables a terminal device to know information that can be acquired only after the terminal device accesses a cell, reduces the complexity of the terminal device searching for and accessing the cell, and does not introduce additional signaling overhead.

[0006] In a first aspect, embodiments of the present application provide a method for information indication, which can be applied to a terminal side, for example, a terminal device or a communication module in the terminal device, or a circuit or chip responsible for communication function in the terminal device (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core). Taking the case of applying the method to a terminal device, the method comprises:

[0007] receiving a synchronization signal sent by a network device through a polarization direction; and determining a cell access parameter of a cell where the terminal device is located based on the polarization direction of the synchronization signal.

[0008] The network device implicitly indicates the cell access parameter of the cell where the terminal device is located through the polarization direction of the synchronization signal, so that the terminal device can obtain information that can only be obtained after the terminal device accesses the cell, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0009] In a possible design, the cell access parameter comprises a period of the synchronization signal, and the period of the synchronization signal is determined based on the polarization direction of the synchronization signal. The period of the synchronization signal is implicitly indicated through the polarization direction of the synchronization signal, so that the terminal device can obtain information that can only be obtained after the terminal device accesses the cell, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0010] In a possible design, when the polarization direction of the synchronization signal is a first polarization direction, the period of the synchronization signal is determined as a first period; and when the polarization direction of the synchronization signal is a second polarization direction, the period of the synchronization signal is determined as a second period. The period of the synchronization signal is implicitly indicated through the polarization direction of the synchronization signal, so that the terminal device can obtain information that can only be obtained after the terminal device accesses the cell, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0011] In a possible design, the synchronization signal includes a first synchronization signal and a second synchronization signal; when the polarization direction of the first synchronization signal is a first polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, it is determined that a period of the synchronization signal is a first period; when the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is a second polarization direction, it is determined that the period of the synchronization signal is a second period; when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, it is determined that the period of the synchronization signal is a third period; and when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, it is determined that the period of the synchronization signal is a fourth period. That is, the network device indicates the period of the SSB by using different polarization direction combinations, so that the terminal device learns the information that can be acquired only after the terminal device accesses the cell, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0012] In a possible design, the cell access parameter further includes an activation state, and the activation state of the cell where the terminal device is located is determined based on the polarization direction of the synchronization signal. The activation state of the cell where the terminal device is located is implicitly indicated by the polarization direction of the synchronization signal, so that the terminal device learns the activation state of the cell in advance, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without the need to indicate the activation state of the cell by using the MIB, thereby reducing signaling overhead.

[0013] In a possible design, when the polarization direction of the synchronization signal is a third polarization direction, it is determined that the cell where the terminal device is located is in an activated state; and when the polarization direction of the synchronization signal is a fourth polarization direction, it is determined that the cell where the terminal device is located is in a deactivated state. The activation state of the cell where the terminal device is located is implicitly indicated by the polarization direction of the synchronization signal, so that the terminal device learns the activation state of the cell in advance, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without the need to indicate the activation state of the cell by using the MIB, thereby reducing signaling overhead.

[0014] In a possible design, the cell access parameter further includes an activation state and a cell activation type, and the activation state and the cell activation type of the cell where the terminal device is located are determined based on the polarization direction of the synchronization signal. The activation state and the cell activation type of the cell where the terminal device is located are implicitly indicated by the polarization direction of the synchronization signal, so that the terminal device learns the information about accessing the cell in advance, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without the need to indicate the activation state or the cell activation type of the cell by using the MIB, thereby reducing signaling overhead.

[0015] In a possible design, the synchronization signal includes a third synchronization signal and a fourth synchronization signal, when the polarization direction of the third synchronization signal is a fifth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction, it is determined that the cell where the terminal device is located is in an active state; when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction, it is determined that the cell where the terminal device is located is in an inactive state and the cell activation type is passive activation; when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the sixth polarization direction, it is determined that the cell where the terminal device is located is in an inactive state and the cell activation type is active activation. That is, the network device indicates the activation state of the cell or the cell activation type through different polarization direction combinations, so that the terminal device knows the information that can be obtained only after the terminal device accesses the cell, thereby reducing the complexity of the terminal device searching for and accessing the cell, and without introducing additional signaling overhead.

[0016] In a possible design, the cell access parameter further includes an index range of the synchronization signal; and the index range of the synchronization signal is determined based on the polarization direction of the synchronization signal. The index range of the synchronization signal is implicitly indicated by the polarization direction of the synchronization signal, without increasing signaling overhead and without affecting the MIB, thereby expanding the index range of the SSB and thus expanding the coverage range of the cell.

[0017] In a possible design, when the polarization direction of the synchronization signal is a seventh polarization direction, it is determined that the index range of the synchronization signal is a first index range; and when the polarization direction of the synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a second index range. The index range of the synchronization signal is implicitly indicated by the polarization direction of the synchronization signal, without increasing signaling overhead and without affecting the MIB, thereby expanding the index range of the SSB and thus expanding the coverage range of the cell.

[0018] In a possible design, the synchronization signals include a fifth synchronization signal and a sixth synchronization signal, when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is the seventh polarization direction, the index range of the synchronization signals is determined as a first index range; when the polarization direction of the fifth synchronization signal is the seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, the index range of the synchronization signals is determined as a second index range; when the polarization direction of the fifth synchronization signal is the eighth polarization direction and the polarization direction of the sixth synchronization signal is the seventh polarization direction, the index range of the synchronization signals is determined as a third index range; and when the polarization direction of the fifth synchronization signal is the eighth polarization direction and the polarization direction of the sixth synchronization signal is the eighth polarization direction, the index range of the synchronization signals is determined as a fourth index range. That is, the network device indicates the index range of the synchronization signals through different polarization direction combinations, and extends the index range of the SSBs without increasing signaling overhead and affecting the MIB, thereby expanding the coverage range of the cell.

[0019] In a possible design, the synchronization signals are synchronization signal and physical broadcast channel blocks (SSBs).

[0020] In a second aspect, an information indication method is provided, which can be applied to a network side, for example, a network device of the network side or a component (for example, a circuit, a chip, or a chip system) in the network device. For example, when the method is applied to the network device, the method includes:

[0021] The network device sends the synchronization signals to the terminal device through the polarization directions, and the polarization directions are used to indicate the cell access parameters of the cell where the terminal device is located.

[0022] The network device implicitly indicates the cell access parameters of the cell where the terminal device is located through the polarization directions of the synchronization signals, so that the terminal device learns the information that can be acquired only after the terminal device accesses the cell, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0023] In a possible design, the cell access parameters include a period of the synchronization signals, and the polarization directions are used to indicate the period of the synchronization signals. The network device implicitly indicates the period of the synchronization signals through the polarization directions of the synchronization signals, so that the terminal device learns the information that can be acquired only after the terminal device accesses the cell, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0024] In a possible design, when the polarization direction of the synchronization signal is a first polarization direction, a period of the synchronization signal is a first period; and when the polarization direction of the synchronization signal is a second polarization direction, the period of the synchronization signal is a second period. The period of the synchronization signal is implicitly indicated by the polarization direction of the synchronization signal, so that the terminal device learns information that can be acquired only after the terminal device accesses a cell, thereby reducing complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0025] In a possible design, the synchronization signal includes a first synchronization signal and a second synchronization signal; when the polarization direction of the first synchronization signal is a first polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, a period of the synchronization signal is a first period; when the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is a second polarization direction, the period of the synchronization signal is a second period; when the polarization direction of the first synchronization signal is a second polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, the period of the synchronization signal is a third period; and when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, the period of the synchronization signal is a fourth period. That is, the network device indicates the period of the SSB by different polarization direction combinations, so that the terminal device learns information that can be acquired only after the terminal device accesses a cell, thereby reducing complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0026] In a possible design, the cell access parameter further includes an activation state, and the polarization direction is used to indicate the activation state of a cell where the terminal device is located. The activation state of the cell where the terminal device is located is implicitly indicated by the polarization direction of the synchronization signal, so that the activation state of the cell is learned in advance, thereby reducing complexity of the terminal device in searching for and accessing the cell, and without the need to indicate the activation state of the cell by the MIB, reducing signaling overhead.

[0027] In a possible design, when the polarization direction of the synchronization signal is a third polarization direction, the cell where the terminal device is located is in an activated state; and when the polarization direction of the synchronization signal is a fourth polarization direction, the cell where the terminal device is located is in a deactivated state. The activation state of the cell where the terminal device is located is implicitly indicated by the polarization direction of the synchronization signal, so that the activation state of the cell is learned in advance, thereby reducing complexity of the terminal device in searching for and accessing the cell, and without the need to indicate the activation state of the cell by the MIB, reducing signaling overhead.

[0028] In a possible design, the cell access parameter further includes an activation state and a cell activation type, and the polarization direction is used to indicate the activation state and the cell activation type of the cell where the terminal device is located. By implicitly indicating the activation state and the cell activation type of the cell where the terminal device is located through the polarization direction of the synchronization signal, information about accessing the cell is obtained in advance, thereby reducing complexity of the terminal device in searching for and accessing the cell, and the activation state or the cell activation type of the cell does not need to be indicated through the MIB, thereby reducing signaling overhead.

[0029] In a possible design, the synchronization signal includes a third synchronization signal and a fourth synchronization signal, when the polarization direction of the third synchronization signal is a fifth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction, the cell where the terminal device is located is in an activated state; when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction, the cell where the terminal device is located is in a deactivated state and the cell activation type is passive activation; and when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the sixth polarization direction, the cell where the terminal device is located is in a deactivated state and the cell activation type is active activation. That is, the network device indicates the activation state or the cell activation type of the cell through different polarization direction combinations, so that the terminal device obtains information that can be obtained only after the terminal device accesses the cell, thereby reducing complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0030] In a possible design, the cell access parameter further includes an index range of the synchronization signal, and the polarization direction is used to indicate the index range of the synchronization signal. By implicitly indicating the index range of the synchronization signal through the polarization direction of the synchronization signal, the index range of the SSB is extended without increasing signaling overhead and without affecting the MIB, thereby expanding the coverage range of the cell.

[0031] In a possible design, when the polarization direction of the synchronization signal is a seventh polarization direction, it is determined that the index range of the synchronization signal is a first index range; and when the polarization direction of the synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a second index range. By implicitly indicating the index range of the synchronization signal through the polarization direction of the synchronization signal, the index range of the SSB is extended without increasing signaling overhead and without affecting the MIB, thereby expanding the coverage range of the cell.

[0032] In a possible design, the synchronization signals include a fifth synchronization signal and a sixth synchronization signal; when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is the seventh polarization direction, the index range of the synchronization signals is determined as a first index range; when the polarization direction of the fifth synchronization signal is the seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, the index range of the synchronization signals is determined as a second index range; when the polarization direction of the fifth synchronization signal is the eighth polarization direction and the polarization direction of the sixth synchronization signal is the seventh polarization direction, the index range of the synchronization signals is determined as a third index range; and when the polarization direction of the fifth synchronization signal is the eighth polarization direction and the polarization direction of the sixth synchronization signal is the eighth polarization direction, the index range of the synchronization signals is determined as a fourth index range. That is, the network device indicates the index range of the synchronization signals through different polarization direction combinations, and the index range of the SSB is extended without increasing signaling overhead and without affecting the MIB, thereby expanding the coverage range of the cell.

[0033] In a possible design, the synchronization signals are synchronization signal and physical broadcast channel blocks (SSBs).

[0034] In a third aspect, an information indication apparatus is provided, which has the functions of the first aspect, for example, the information indication apparatus includes modules or units or means corresponding to the operations of the first aspect, which can be implemented by software, hardware, or a combination of software and hardware. The apparatus includes:

[0035] a receiving module, configured to receive synchronization signals sent by a network device through polarization directions;

[0036] a processing module, configured to determine cell access parameters of a cell where a terminal device is located based on the polarization directions of the synchronization signals.

[0037] In a possible design, the cell access parameters include a period of the synchronization signals, and the processing module is further configured to determine the period of the synchronization signals based on the polarization directions of the synchronization signals.

[0038] In a possible design, the processing module is further configured to determine that the period of the synchronization signals is a first period when the polarization direction of the synchronization signals is a first polarization direction, and determine that the period of the synchronization signals is a second period when the polarization direction of the synchronization signals is a second polarization direction.

[0039] In a possible design, the synchronization signal includes a first synchronization signal and a second synchronization signal.

[0040] The processing module is further configured to determine, when the polarization direction of the first synchronization signal is a first polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, a period of the synchronization signal to be a first period.

[0041] determine, when the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is a second polarization direction, the period of the synchronization signal to be a second period.

[0042] determine, when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, the period of the synchronization signal to be a third period.

[0043] determine, when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, the period of the synchronization signal to be a fourth period.

[0044] In a possible design, the cell access parameter further includes an activation state, and the processing module is further configured to determine, based on the polarization direction of the synchronization signal, the activation state of the cell in which the terminal device is located.

[0045] In a possible design, the processing module is further configured to determine, when the polarization direction of the synchronization signal is a third polarization direction, that the cell in which the terminal device is located is in an active state; and determine, when the polarization direction of the synchronization signal is a fourth polarization direction, that the cell in which the terminal device is located is in an inactive state.

[0046] In a possible design, the cell access parameter further includes an activation state and a cell activation type, and the processing module is further configured to determine, based on the polarization direction of the synchronization signal, the activation state and the cell activation type of the cell in which the terminal device is located.

[0047] In a possible design, the synchronization signal includes a third synchronization signal and a fourth synchronization signal, and the processing module is further configured to determine, when the polarization direction of the third synchronization signal is a fifth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction, that the cell in which the terminal device is located is in an active state.

[0048] determine, when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction, that the cell in which the terminal device is located is in an inactive state and the cell activation type is a passive activation.

[0049] when the polarization direction of the third synchronization signal is a sixth polarization direction and the polarization direction of the fourth synchronization signal is a sixth polarization direction, determining that the cell where the terminal device is located is in an inactive state and the cell activation type is active activation.

[0050] In a possible design, the cell access parameter further includes an index range of the synchronization signal; and the processing module is further configured to determine the index range of the synchronization signal based on the polarization direction of the synchronization signal.

[0051] In a possible design, the processing module is further configured to determine, when the polarization direction of the synchronization signal is a seventh polarization direction, that the index range of the synchronization signal is a first index range; and determine, when the polarization direction of the synchronization signal is an eighth polarization direction, that the index range of the synchronization signal is a second index range.

[0052] In a possible design, the synchronization signal includes a fifth synchronization signal and a sixth synchronization signal, and the processing module is further configured to determine, when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is a seventh polarization direction, that the index range of the synchronization signal is a first index range.

[0053] determine, when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, that the index range of the synchronization signal is a second index range.

[0054] determine, when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is a seventh polarization direction, that the index range of the synchronization signal is a third index range.

[0055] determine, when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, that the index range of the synchronization signal is a fourth index range.

[0056] The processing module is further configured to determine that the synchronization signal is a synchronization signal and physical broadcast channel block (SSB).

[0057] The information indicating apparatus performs operations and has beneficial effects as described in the method of the first aspect and the beneficial effects, and the repeated parts will not be described herein.

[0058] In a fourth aspect, an information indication apparatus is provided. The information indication apparatus has the functions of the second aspect. For example, the information indication apparatus includes modules or units or means corresponding to the operations of the second aspect. The modules or units or means can be implemented in software, hardware or a combination of software and hardware. The apparatus includes:

[0059] The sending module is configured to send the synchronization signal to the terminal device through a polarization direction, where the polarization direction is used to indicate a cell access parameter of a cell where the terminal device is located.

[0060] In a possible design, the cell access parameter includes a period of the synchronization signal, and the polarization direction is used to indicate the period of the synchronization signal.

[0061] In a possible design, when the polarization direction of the synchronization signal is a first polarization direction, the period of the synchronization signal is a first period; and when the polarization direction of the synchronization signal is a second polarization direction, the period of the synchronization signal is a second period.

[0062] In a possible design, the synchronization signal includes a first synchronization signal and a second synchronization signal.

[0063] When the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, the period of the synchronization signal is the first period.

[0064] When the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, the period of the synchronization signal is the second period.

[0065] When the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, the period of the synchronization signal is a third period.

[0066] When the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, the period of the synchronization signal is a fourth period.

[0067] In a possible design, the cell access parameter further includes an activation state, and the polarization direction is used to indicate the activation state of the cell where the terminal device is located.

[0068] In a possible design, when the polarization direction of the synchronization signal is a third polarization direction, the cell where the terminal device is located is in an active state; and when the polarization direction of the synchronization signal is a fourth polarization direction, the cell where the terminal device is located is in an inactive state.

[0069] In a possible design, the cell access parameter further includes an active state and a cell activation type, and the polarization direction is used to indicate the active state and the cell activation type of the cell where the terminal device is located.

[0070] In a possible design, the synchronization signal includes a third synchronization signal and a fourth synchronization signal.

[0071] When the polarization direction of the third synchronization signal is a fifth polarization direction, and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction, the cell where the terminal device is located is in an active state.

[0072] When the polarization direction of the third synchronization signal is the sixth polarization direction, and the polarization direction of the fourth synchronization signal is the fifth polarization direction, the cell where the terminal device is located is in an inactive state, and the cell activation type is passive activation.

[0073] When the polarization direction of the third synchronization signal is the sixth polarization direction, and the polarization direction of the fourth synchronization signal is the sixth polarization direction, the cell where the terminal device is located is in an inactive state, and the cell activation type is active activation.

[0074] In a possible design, the cell access parameter further includes an index range of the synchronization signal, and the polarization direction is used to indicate the index range of the synchronization signal.

[0075] In a possible design, when the polarization direction of the synchronization signal is a seventh polarization direction, it is determined that the index range of the synchronization signal is a first index range; and when the polarization direction of the synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a second index range.

[0076] In a possible design, the synchronization signal includes a fifth synchronization signal and a sixth synchronization signal.

[0077] When the polarization direction of the fifth synchronization signal is the seventh polarization direction, and the polarization direction of the sixth synchronization signal is the seventh polarization direction, it is determined that the index range of the synchronization signal is the first index range.

[0078] when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, determining that the index range of the synchronization signal is a second index range;

[0079] when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, determining that the index range of the synchronization signal is a second index range;

[0080] when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, determining that the index range of the synchronization signal is a second index range.

[0081] In a possible design, the synchronization signal is a synchronization signal and physical broadcast channel block (SSB).

[0082] The information indication apparatus performs operations and has advantages as described in the method of the second aspect and the advantages, and details are not repeated.

[0083] In a fifth aspect, an information indication apparatus is provided. The information indication apparatus includes a memory and one or more processors. The memory is configured to store part or all of the computer programs or instructions necessary for implementing the functions related to the first aspect. The one or more processors are configured to execute the computer programs or instructions, and when the computer programs or instructions are executed, the information indication apparatus is configured to implement the method in any possible design or implementation manner of the first aspect.

[0084] In a possible design, the information indication apparatus can further include interface circuitry, and the processor is configured to communicate with other apparatuses or components through the interface circuitry.

[0085] In a possible design, the information indication apparatus can further include the memory.

[0086] The information indication apparatus can be a terminal device, a communication module in the terminal device, or a chip responsible for communication functions in the terminal, such as a Modem chip (also referred to as a baseband chip) or a SoC or SIP chip containing a modem module.

[0087] In a sixth aspect, an embodiment of the present application provides an information indication apparatus, which comprises a memory and one or more processors. The memory is configured to store part or all of the computer programs or instructions necessary for implementing the functions related to the second aspect. The one or more processors are configured to execute the computer programs or instructions, and when the computer programs or instructions are executed, the information indication apparatus is configured to implement the method in any possible design or implementation manner of the second aspect.

[0088] In a possible design, the information indication apparatus can further comprise interface circuitry, and the processor is configured to communicate with other apparatuses or components through the interface circuitry.

[0089] In a possible design, the information indication apparatus can further comprise the memory.

[0090] The information indication apparatus can be a network device, a communication module in a network device, or a chip responsible for communication functions in a terminal, such as a Modem chip (also referred to as a baseband chip) or a SoC or SIP chip containing a modem module.

[0091] In a seventh aspect, a computer readable storage medium is provided, which is configured to store a computer program. When the computer program is executed, the method in any one of the first aspect and the second aspect is implemented.

[0092] In an eighth aspect, a computer program product is provided, which comprises a computer program. When the computer program is executed, the method in any one of the first aspect and the second aspect is implemented.

[0093] In a ninth aspect, an embodiment of the present application provides a communication system, which comprises at least one terminal device and at least one network device. The terminal device is configured to execute the steps in the first aspect, and the network device is configured to execute the steps in the second aspect.

[0094] In a tenth aspect, a chip is provided, which comprises a processor and a communication interface. The communication interface is configured to communicate with external devices or internal devices. The processor is configured to implement the method in the various aspects.

[0095] In a possible design, the chip can further comprise a memory. The memory stores computer programs or instructions, and the processor is configured to execute the computer programs or instructions stored in the memory or other programs or instructions. When the computer programs or instructions are executed, the processor is configured to implement the method in the various aspects.

[0096] In a possible design, the chip can be integrated in a terminal device or a network device. Attached Figure Description

[0097] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0098] Figure 2 is a flowchart illustrating an information indication method provided in an embodiment of this application;

[0099] Figure 3 is a structural schematic diagram of an information indication device provided in an embodiment of this application;

[0100] Figure 4 is a schematic diagram of another information indication device provided in an embodiment of this application;

[0101] Figure 5 is a structural schematic diagram of a terminal device provided in an embodiment of this application;

[0102] Figure 6 is a schematic diagram of the structure of a network device provided in an embodiment of this application. Detailed Implementation

[0103] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. The communication system includes terminal equipment, access network equipment, core network equipment, and a ground station. This application falls under the category of satellite communication. The terminal equipment can access the network through an air interface (which can be various types of air interfaces, such as a 5G air interface). The access network equipment is deployed on the satellite and connected to the ground-based core network equipment via a wireless link (NG interface). Simultaneously, a wireless link (Xn interface) exists between the satellites to complete signaling interaction and user data transmission between the access network equipment.

[0104] Terminal device: a device that can access a satellite network through an air interface and initiate a call, online services, and other services, and provide voice and / or data connectivity to users. It can also be referred to as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., such as handheld devices with wireless connection functions, vehicle-mounted devices, etc. Currently, some examples of terminals are: mobile phones, tablet computers, notebook computers, palm computers, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.

[0105] Access network device: mainly provides wireless access services, schedules wireless resources to the accessed terminal device, and provides reliable wireless transmission protocols and data encryption protocols, etc. The access network device can also be referred to as a base station. Currently, some examples of RAN nodes are: continued evolution of Node B (gNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), or wireless fidelity (Wifi) access point (AP), etc.

[0106] Core network device: mainly responsible for user access control, mobility management, session management, user security authentication and charging, etc. It is composed of multiple functional units and can include functional entities of control plane and data plane. Currently, some examples of core network devices are: access and mobility management function (AMF) entity, session management function (SMF) entity, user plane function (UPF) entity, etc. The AMF entity can be responsible for access management and mobility management of the terminal; the SMF entity can be responsible for session management, such as session establishment of the user, etc.; the UPF entity can be a functional entity of the user plane, mainly responsible for connecting external networks. It should be noted that the entity in this application can also be referred to as a network element, for example, the AMF entity can also be referred to as an AMF network element, and for example, the SMF entity can also be referred to as an SMF network element, etc.

[0107] Ground station: responsible for forwarding signaling and service data between satellite base station and core network.

[0108] Air interface: wireless link between terminal device and access network device.

[0109] Xn interface: interface between access network devices, mainly used for signaling interaction such as handover.

[0110] NG interface: interface between access network device and core network device, mainly for interaction of non-access layer (Non-access stratum, NAS) signaling of core network and service data of user.

[0111] The present application is applied to long term evolution (LTE) system, universal mobile telecommunications system (UMTS) system, code division multiple access (CDMA) system, wireless local area network (WLAN), 5G or next generation wireless communication system, etc., involving terminal device and access network device, ground station and other wireless access network elements, based on wireless communication protocol to perform uplink and downlink data communication. The network device in the embodiments of the present application can be a network side device capable of communicating with the terminal device, including access network device, satellite or ground station, etc.

[0112] The terminal device in the embodiments of the present application can be a linear and polarized terminal device. For a high-frequency communication system, the terminal device can be a circularly polarized terminal device. The present application can also be compatible with legacy linear terminal devices. The legacy terminal device is linear, and can receive both left-handed and right-handed polarized synchronization signals. The legacy terminal device can also monitor the synchronization signal through a default period of 20 ms.

[0113] As shown in FIG. 2, FIG. 2 is a flowchart of an information indication method provided by the embodiments of the present application. The method mainly includes the following steps:

[0114] S201, the network device sends a synchronization signal to a terminal device through a polarization direction.

[0115] The synchronization signal can be a downlink synchronization signal. The synchronization signal can be a synchronization signal block (SSB). The SSB can include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). The SSB can also include a PSS, an SSS, a master information block (MIB), and a corresponding demodulation reference signal (DMRS).

[0116] The polarization direction can include left-handed polarization, right-handed polarization, dual polarization, and the like. Dual polarization can mean that two synchronization signals adopt different polarization directions. For example, the PSS adopts one polarization direction, and the SSS adopts another polarization direction.

[0117] S202, the terminal device determines a cell access parameter of a cell in which the terminal device is located based on the polarization direction of the synchronization signal.

[0118] In an implementation manner, the cell access parameter includes a period of the synchronization signal. The terminal device determines the period of the synchronization signal of the cell in which the terminal device is located based on the polarization direction of the synchronization signal. The polarization direction of the synchronization signal implicitly indicates the period of the synchronization signal, so that the terminal device can obtain information that can be obtained only after the terminal device accesses the cell, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and without introducing additional signaling overhead.

[0119] Further, when the polarization direction of the synchronization signal is a first polarization direction, a period of the synchronization signal is determined as a first period; when the polarization direction of the synchronization signal is a second polarization direction, the period of the synchronization signal is determined as a second period. The first polarization direction and the second polarization direction are two different polarization directions. For example, the first polarization direction can be left-handed polarization, and the second polarization direction can be right-handed polarization, or the first polarization direction can be right-handed polarization, and the second polarization direction can be left-handed polarization.

[0120] It should be noted that the network device can transmit the synchronization signal in more different polarization directions, and indicate more different periods of the SSB through different polarization directions.

[0121] For example, there are multiple periods of SSBs for the network device, and the terminal device does not know the current period of the SSB in the initial stage, and needs to use the smallest default period (for example, 20 ms) to monitor the SSB. For example, for a cell with a period of 640 ms, the terminal device needs to detect 32 periods to detect the next SSB. If the polarization direction of the SSB implicitly indicates the period of the current SSB, the SSB can be monitored according to the period of the SSB indicated by the polarization direction. For example, the network device transmits the SSB in left-handed polarization, indicating that the period of the SSB of the cell where the terminal device is located is less than or equal to 80 ms, and the terminal device can receive the SSB according to the default period of 20 ms. If the network device transmits the SSB in right-handed polarization, it indicates that the period of the SSB of the cell where the terminal device is located is greater than 80 ms, and the terminal device can receive the SSB according to the period of 80 ms.

[0122] Alternatively, the network device can indicate three different SSB periods through left-handed polarization, right-handed polarization, and dual polarization, respectively. For example, the network device transmits the SSB in left-handed polarization, indicating that the period of the SSB of the cell where the terminal device is located is less than or equal to 80 ms, and the terminal device can receive the SSB according to the default period of 20 ms. If the network device transmits the SSB in right-handed polarization, it indicates that the period of the SSB of the cell where the terminal device is located is greater than 80 ms and less than or equal to 160 ms, and the terminal device can receive the SSB according to the period of 80 ms. If the network device transmits the SSB in right-handed polarization, it indicates that the period of the SSB of the cell where the terminal device is located is greater than 160 ms, and the terminal device can receive the SSB according to the period of 160 ms.

[0123] Further, the synchronization signal can include a first synchronization signal and a second synchronization signal. When the polarization direction of the first synchronization signal is a first polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, it indicates that the period of the synchronization signal is a first period; when the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is a second polarization direction, it indicates that the period of the synchronization signal is a second period; when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, it indicates that the period of the synchronization signal is a third period; when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, it indicates that the period of the synchronization signal is a fourth period. That is, the network device can indicate the period of the SSB through different polarization direction combinations, so that the terminal device knows the information that can be obtained after the terminal device accesses the cell in advance, thereby reducing the complexity of the terminal device searching for and accessing the cell, and without introducing additional signaling overhead.

[0124] The first synchronization signal and the second synchronization signal are two different synchronization signals. For example, the first synchronization signal can be a PSS, and the second synchronization signal can be a SSS. Alternatively, the first synchronization signal can be a SSS, and the second synchronization signal can be a PSS. The first polarization direction and the second polarization direction are two different polarization directions. For example, the first polarization direction can be left-handed polarization, and the second polarization direction can be right-handed polarization, or the first polarization direction can be right-handed polarization, and the second polarization direction can be left-handed polarization.

[0125] It should be noted that the network device can combine different synchronization signals and different polarization directions to form different polarization direction combinations, send the synchronization signal through different polarization direction combinations, and indicate more different periods of the SSB through different polarization direction combinations.

[0126] For example, the network device can compose four polarization direction combinations in combination with the polarization directions (left-hand circular polarization and right-hand circular polarization) of the PSS and the SSS, and transmit the synchronization signal through the four polarization direction combinations. If the network device transmits the PSS by using the left-hand circular polarization and transmits the SSS by using the left-hand circular polarization, it indicates that the period of the synchronization signal is less than or equal to 80 ms, and the terminal device can receive the SSB according to a default period of 20 ms. If the network device transmits the PSS by using the left-hand circular polarization and transmits the SSS by using the right-hand circular polarization, it indicates that the period of the synchronization signal is greater than 80 ms and less than or equal to 160 ms, and the terminal device can receive the SSB according to a period of 80 ms. If the network device transmits the PSS by using the right-hand circular polarization and transmits the SSS by using the right-hand circular polarization, it indicates that the period of the synchronization signal is greater than 160 ms and less than or equal to 320 ms, and the terminal device can receive the SSB according to a period of 160 ms. If the network device transmits the PSS by using the right-hand circular polarization and transmits the SSS by using the left-hand circular polarization, it indicates that the period of the synchronization signal is greater than 320 ms, and the terminal device can receive the SSB according to a default period of 320 ms.

[0127] The network device can also compose more polarization direction combinations in combination with the polarization directions (left-hand circular polarization and right-hand circular polarization) of the PSS, the SSS and the MIB. The terminal device can determine the period of the SSB through the more polarization direction combinations. Similar to the above, details are not described herein.

[0128] In another implementation, the cell access parameter further includes an activation state, and the terminal device determines the activation state of the cell in which the terminal device is located based on the polarization direction of the synchronization signal. The activation state of the cell is implicitly indicated by the polarization direction of the synchronization signal, so that the activation state of the cell is known in advance, thereby reducing the complexity of the terminal device in searching for and accessing the cell, and the activation state of the cell does not need to be indicated by the MIB, thereby reducing signaling overhead.

[0129] Further, when the polarization direction of the synchronization signal is a third polarization direction, it is determined that the cell in which the terminal device is located is in an activated state; and when the polarization direction of the synchronization signal is a fourth polarization direction, it is determined that the cell in which the terminal device is located is in a deactivated state. The third polarization direction and the fourth polarization direction are two different polarization directions. For example, the third polarization direction can be the left-hand circular polarization, and the fourth polarization direction can be the right-hand circular polarization, or the third polarization direction can be the right-hand circular polarization, and the fourth polarization direction can be the left-hand circular polarization.

[0130] It should be noted that the network device can transmit the synchronization signal by using more different polarization directions to indicate different states of the cell through different polarization directions.

[0131] For example, the network device can indicate the active state of the cell where the terminal device is located through left-handed polarization and right-handed polarization respectively. The network device transmits the SSB in left-handed polarization, indicating that the cell where the terminal device is located is in a non-active state, that is, the cell is a network energy saving (NES) cell, and the terminal device can monitor the SSB of the cell according to a default period. Next, if the network device transmits the SSB in right-handed polarization, it indicates that the cell where the terminal device is located switches to an active state, and the terminal device can normally access the cell.

[0132] In another implementation, the cell access parameter further includes an active state and a cell active type; and the terminal device determines the active state and the cell active type of the cell where the terminal device is located based on the polarization direction of the synchronization signal. The active state and the cell active type of the cell where the terminal device is located are implicitly indicated by the polarization direction of the synchronization signal, so that the information for accessing the cell is obtained in advance, thereby reducing the complexity of searching and accessing the cell by the terminal device, and the active state or the cell active type of the cell does not need to be indicated by the MIB, thereby reducing the signaling overhead.

[0133] Further, the synchronization signal includes a third synchronization signal and a fourth synchronization signal, when the polarization direction of the third synchronization signal is a fifth polarization direction, and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction, the terminal device determines that the cell where the terminal device is located is in an active state; when the polarization direction of the third synchronization signal is the sixth polarization direction, and the polarization direction of the fourth synchronization signal is the fifth polarization direction, it is determined that the cell where the terminal device is located is in a non-active state, and the cell active type is passive activation; when the polarization direction of the third synchronization signal is the sixth polarization direction, and the polarization direction of the fourth synchronization signal is the sixth polarization direction, it is determined that the cell where the terminal device is located is in a non-active state, and the cell active type is active activation. That is, the network device can indicate the active state or the cell active type of the cell through different polarization direction combinations, so that the terminal device obtains the information that can be obtained only after accessing the cell in advance, thereby reducing the complexity of searching and accessing the cell by the terminal device, and without introducing additional signaling overhead.

[0134] Wherein, the third synchronization signal and the fourth synchronization signal are two different synchronization signals. For example, the third synchronization signal can be PSS, and the fourth synchronization signal can be SSS. Or, the third synchronization signal can be SSS, and the fourth synchronization signal can be PSS. The fifth polarization direction and the sixth polarization direction are two different polarization directions. For example, the fifth polarization direction can be left-handed polarization, and the sixth polarization direction can be right-handed polarization, or the fifth polarization direction can be right-handed polarization, and the sixth polarization direction can be left-handed polarization.

[0135] It should be noted that the network device can combine different synchronization signals and different polarization directions to form different polarization direction combinations, transmit the synchronization signals through different polarization direction combinations, and indicate more states of the cell where the terminal device is located through different polarization direction combinations.

[0136] For example, the network device can combine the polarization directions (left-handed polarization and right-handed polarization) of the PSS and the SSS to form four polarization direction combinations, and transmit the synchronization signals through the four polarization direction combinations. If the network device transmits the PSS in left-handed polarization and transmits the SSS in right-handed polarization, it indicates that the cell where the terminal device is located is in a non-active state and is a passively activated cell. There is no normal system information block 1 (SIB1) and other system messages after the SSB, and the terminal device needs to activate the cell. The terminal device can transmit a network side activation signal to enable the network side to switch from a non-active state to an active state. If the network device transmits the PSS in right-handed polarization and transmits the SSS in left-handed polarization, it indicates that the cell where the terminal device is located is in a non-active state and is an actively activated cell. It indicates that the network side will switch from a non-active state to an active state at a certain period. The terminal device can monitor the SSB according to the default period of the NES cell. When it is monitored that the network device transmits the PSS in right-handed polarization and transmits the SSS in right-handed polarization, or transmits the PSS in left-handed polarization and transmits the SSS in left-handed polarization, it indicates that the network side has switched from a non-active state to an active state, and the terminal device can normally access the cell.

[0137] In another implementation manner, the cell access parameter further includes an index range of the synchronization signal; and the terminal device determines the index range of the synchronization signal based on the polarization direction of the synchronization signal. The index range of the synchronization signal is implicitly indicated by the polarization direction of the synchronization signal, the index range of the SSB is expanded without increasing the signaling overhead and without affecting the MIB, and thus the coverage range of the cell is expanded.

[0138] Further, when the polarization direction of the synchronization signal is a seventh polarization direction, the terminal device determines that the index range of the synchronization signal is a first index range; and when the polarization direction of the synchronization signal is an eighth polarization direction, the terminal device determines that the index range of the synchronization signal is a second index range. The seventh polarization direction and the eighth polarization direction are two different polarization directions. For example, the seventh polarization direction can be left-handed polarization, and the eighth polarization direction can be right-handed polarization, or the seventh polarization direction can be right-handed polarization, and the eighth polarization direction can be left-handed polarization.

[0139] It should be noted that the network device can send the synchronization signal in more different polarization directions, and the index range of the synchronization signal is indicated by different polarization directions.

[0140] For example, the number of SSBs in the existing cell and the corresponding index is limited. For a system less than or equal to 3 GHz, the cell has 4 SSBs, and the index range of the SSBs is 0-3. For a system greater than 3 GHz and less than or equal to 6 GHz, the cell has 8 SSBs, and the index range of the SSBs is 0-7. The SSBs correspond to different beam directions. If it is necessary to expand the coverage range of the cell, the index of the SSB needs to be increased. In order not to introduce signaling overhead, the index range of the SSB can be indicated by the polarization direction. If the index of the SSB is indicated as 0-3, and the size of the SSB index is expanded from 4 to 8, then the SSB of the left-handed polarization can represent the index of the SSB from 0 to 3, and the SSB of the right-handed polarization can represent the index of the SSB from 4 to 7.

[0141] Further, the synchronization signal includes a fifth synchronization signal and a sixth synchronization signal. When the polarization direction of the fifth synchronization signal is a seventh polarization direction, and the polarization direction of the sixth synchronization signal is the seventh polarization direction, the terminal device determines that the index range of the synchronization signal is a first index range. When the polarization direction of the fifth synchronization signal is the seventh polarization direction, and the polarization direction of the sixth synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a second index range. When the polarization direction of the fifth synchronization signal is the eighth polarization direction, and the polarization direction of the sixth synchronization signal is the seventh polarization direction, it is determined that the index range of the synchronization signal is a third index range. When the polarization direction of the fifth synchronization signal is the eighth polarization direction, and the polarization direction of the sixth synchronization signal is the eighth polarization direction, it is determined that the index range of the synchronization signal is a fourth index range. That is, the network device can indicate the index range of the synchronization signal by different polarization direction combinations, expand the index range of the SSB without increasing the signaling overhead and without affecting the MIB, thereby expanding the coverage range of the cell.

[0142] The fifth synchronization signal and the sixth synchronization signal are two different synchronization signals. For example, the fifth synchronization signal can be a PSS, and the sixth synchronization signal can be an SSS. Alternatively, the fifth synchronization signal can be an SSS, and the sixth synchronization signal can be a PSS. The seventh polarization direction and the eighth polarization direction are two different polarization directions. For example, the seventh polarization direction can be left-handed polarization, and the eighth polarization direction can be right-handed polarization, or the seventh polarization direction can be right-handed polarization, and the eighth polarization direction can be left-handed polarization.

[0143] It should be noted that the network device can combine different synchronization signals and different polarization directions to form different polarization direction combinations, transmit the synchronization signals through different polarization direction combinations, and indicate a larger index range of the SSB through different polarization direction combinations.

[0144] For example, the network device can combine the polarization directions (left-hand polarization and right-hand polarization) of the PSS and the SSS to form four polarization direction combinations, and transmit the synchronization signals through the four polarization direction combinations. If the network device transmits the PSS in left-hand polarization and transmits the SSS in left-hand polarization, it indicates that the index range of the SSB is 0-3; if the network device transmits the PSS in right-hand polarization and transmits the SSS in right-hand polarization, it indicates that the index range of the SSB is 4-7; if the network device transmits the PSS in left-hand polarization and transmits the SSS in right-hand polarization, it indicates that the index range of the SSB is 8-11; and if the network device transmits the PSS in right-hand polarization and transmits the SSS in left-hand polarization, it indicates that the index range of the SSB is 12-15.

[0145] In another implementation manner, the cell access parameter can include at least two of the following: a period of the synchronization signal, an activation state of the cell, a cell activation type, or an index range of the synchronization signal. That is, the terminal device determines multiple different types of information in the period of the synchronization signal, the activation state of the cell, the cell activation type, and the index range of the synchronization signal based on the polarization direction of the synchronization signal. The network device can combine different synchronization signals and different polarization directions to form different polarization direction combinations, transmit the synchronization signals through different polarization direction combinations, and indicate more different types of information through different polarization direction combinations.

[0146] For example, if the network device transmits the PSS in left-hand polarization and transmits the SSS in left-hand polarization, it indicates that the period of the synchronization signal is less than or equal to 80 ms, and the terminal device can receive the SSB according to a default period of 20 ms. If the network device transmits the PSS in right-hand polarization and transmits the SSS in right-hand polarization, it indicates that the period of the synchronization signal is greater than 80 ms, and the terminal device can receive the SSB according to a period of 80 ms. If the network device transmits the PSS in left-hand polarization and transmits the SSS in right-hand polarization, it indicates that the cell in which the terminal device is located is in a non-activated state, that is, the cell is a network energy-saving cell, and the terminal device can monitor the SSB of the cell according to a default period of 20 ms. Next, the network device transmits the PSS in right-hand polarization and transmits the SSS in left-hand polarization, which indicates that the cell in which the terminal device is located is switched from a non-activated state to an activated state, and the terminal device can normally access the cell. Other cases are similar and will not be described one by one here.

[0147] In the present application, the network device implicitly indicates the cell access parameter of the cell where the terminal device is located through the polarization direction of the synchronization signal, so that the terminal device knows the information that can be obtained after the terminal device accesses the cell, thereby reducing the complexity of the terminal device searching for and accessing the cell, and without introducing additional signaling overhead.

[0148] It can be understood that, in each of the above method embodiments, the method and operation implemented by the terminal device can also be implemented by a component (for example, a chip or a circuit) available for the terminal device, and the method and operation implemented by the network device can also be implemented by a component (for example, a chip or a circuit) available for the network device.

[0149] The present application embodiment can divide the terminal device or the network device according to the above method examples, for example, each function module can be divided according to each function, or two or more functions can be integrated in one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software function module. It should be noted that the division of the modules in the present application embodiment is illustrative, and is only a logical function division. In actual implementation, there can be another division manner. The following will be described taking the division of each function module according to each function as an example.

[0150] The above, in combination with FIG. 2, details the method provided by the present application embodiment. In the following, in combination with FIG. 3 to FIG. 4, the information indication device provided by the present application embodiment is detailed. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, and therefore, the content not detailed can be referred to the above method embodiment, and for brevity, will not be described here.

[0151] Please refer to FIG. 3, which is a structural schematic diagram of an information indication device provided by the present application embodiment. The information indication device can implement the steps or processes performed by the terminal device in the above method embodiment. In a possible design, the information indication device can include a receiving module 301 and a processing module 302. Optionally, the information indication device can further include a storage module for storing device program code and / or data.

[0152] The information indication device can be a terminal side device in the above embodiments, for example, a terminal device or a communication module in the terminal device, or a circuit or a chip responsible for the communication function in the terminal.

[0153] The receiving module 301 is configured to receive the synchronization signal sent by the network device through the polarization direction.

[0154] The processing module 302 is configured to determine the cell access parameter of the cell where the terminal device is located based on the polarization direction of the synchronization signal.

[0155] Optionally, the cell access parameter comprises a period of the synchronization signal; the processing module 302 is further configured to determine the period of the synchronization signal based on the polarization direction of the synchronization signal.

[0156] Optionally, the processing module 302 is further configured to determine the period of the synchronization signal as a first period when the polarization direction of the synchronization signal is a first polarization direction; and determine the period of the synchronization signal as a second period when the polarization direction of the synchronization signal is a second polarization direction.

[0157] Optionally, the synchronization signal comprises a first synchronization signal and a second synchronization signal.

[0158] The processing module 302 is further configured to determine the period of the synchronization signal as a first period when the polarization direction of the first synchronization signal is a first polarization direction and the polarization direction of the second synchronization signal is a first polarization direction; determine the period of the synchronization signal as a second period when the polarization direction of the first synchronization signal is a first polarization direction and the polarization direction of the second synchronization signal is a second polarization direction; determine the period of the synchronization signal as a third period when the polarization direction of the first synchronization signal is a second polarization direction and the polarization direction of the second synchronization signal is a first polarization direction; and determine the period of the synchronization signal as a fourth period when the polarization direction of the first synchronization signal is a second polarization direction and the polarization direction of the second synchronization signal is a second polarization direction.

[0159] Optionally, the cell access parameter further comprises an activation state; the processing module 302 is further configured to determine the activation state of the cell where the terminal device is located based on the polarization direction of the synchronization signal.

[0160] Optionally, the processing module 302 is further configured to determine that the cell where the terminal device is located is in an activated state when the polarization direction of the synchronization signal is a third polarization direction; and determine that the cell where the terminal device is located is in a non-activated state when the polarization direction of the synchronization signal is a fourth polarization direction.

[0161] Optionally, the cell access parameter further comprises an activation state and a cell activation type; the processing module 302 is further configured to determine the activation state and the cell activation type of the cell where the terminal device is located based on the polarization direction of the synchronization signal.

[0162] Optionally, the synchronization signal comprises a third synchronization signal and a fourth synchronization signal, and the processing module 302 is further configured to determine that the cell where the terminal device is located is in an active state when the polarization direction of the third synchronization signal is a fifth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction; determine that the cell where the terminal device is located is in an inactive state and the activation type of the cell is passive activation when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction; and determine that the cell where the terminal device is located is in an inactive state and the activation type of the cell is active activation when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the sixth polarization direction.

[0163] Optionally, the cell access parameter further comprises an index range of the synchronization signal, and the processing module 302 is further configured to determine the index range of the synchronization signal based on the polarization direction of the synchronization signal.

[0164] Optionally, the processing module 302 is further configured to determine that the index range of the synchronization signal is a first index range when the polarization direction of the synchronization signal is a seventh polarization direction, and determine that the index range of the synchronization signal is a second index range when the polarization direction of the synchronization signal is an eighth polarization direction.

[0165] Optionally, the synchronization signal comprises a fifth synchronization signal and a sixth synchronization signal, and the processing module 302 is further configured to determine that the index range of the synchronization signal is a first index range when the polarization direction of the fifth synchronization signal is the seventh polarization direction and the polarization direction of the sixth synchronization signal is the seventh polarization direction; determine that the index range of the synchronization signal is a second index range when the polarization direction of the fifth synchronization signal is the seventh polarization direction and the polarization direction of the sixth synchronization signal is the eighth polarization direction; determine that the index range of the synchronization signal is a third index range when the polarization direction of the fifth synchronization signal is the eighth polarization direction and the polarization direction of the sixth synchronization signal is the seventh polarization direction; and determine that the index range of the synchronization signal is a fourth index range when the polarization direction of the fifth synchronization signal is the eighth polarization direction and the polarization direction of the sixth synchronization signal is the eighth polarization direction.

[0166] The processing module 302 is further configured to determine that the synchronization signal is a synchronization signal and a physical broadcast channel block (SSB).

[0167] In a possible design, the function of the processing module 302 can be implemented by one or more processors when the information indicating apparatus is a terminal device or a communication module in a terminal device. Specifically, the processor can include a Modem chip, or a System on Chip (SoC) chip or a SIP chip including a Modem core. The function of the receiving module 301 can be implemented by a transceiver circuit.

[0168] In a possible design, the function of the processing module 302 can be implemented by circuitry including one or more processors or processor cores in a chip when the information indicating apparatus is a circuit or chip responsible for communication functions in a terminal device, such as a Modem chip or a System on Chip (SoC) chip or a SIP chip including a Modem core. The function of the receiving module 301 can be implemented by an interface circuit or a data transceiver circuit on the chip.

[0169] It should be noted that the implementation of each module can also correspond to the description of the corresponding method embodiment shown in FIG. 2, and the method and function performed by the terminal device in the above embodiments are executed.

[0170] Referring to FIG. 4, FIG. 4 is a structural schematic diagram of another information indicating apparatus according to an embodiment of the present application. The information indicating apparatus can implement the steps or procedures performed by the network device in the above method embodiments. In a possible design, the information indicating apparatus can include a sending module 401. Optionally, the information indicating apparatus can further include a storage module for storing device program code and / or data.

[0171] The information indicating apparatus can be the network side apparatus in the above embodiments, for example, a network device or a communication module in a network device, or a circuit or chip responsible for communication functions in a network.

[0172] The sending module 401 is configured to send a synchronization signal to a terminal device through a polarization direction, where the polarization direction is used to indicate a cell access parameter of a cell where the terminal device is located.

[0173] Optionally, the cell access parameter includes a period of the synchronization signal, and the polarization direction is used to indicate the period of the synchronization signal.

[0174] Optionally, when the polarization direction of the synchronization signal is a first polarization direction, the period of the synchronization signal is a first period; and when the polarization direction of the synchronization signal is a second polarization direction, the period of the synchronization signal is a second period.

[0175] Optionally, the synchronization signal includes a first synchronization signal and a second synchronization signal.

[0176] When the polarization direction of the first synchronization signal is a first polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, a period of the synchronization signal is a first period; when the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is a second polarization direction, the period of the synchronization signal is a second period; when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, the period of the synchronization signal is a third period; and when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, the period of the synchronization signal is a fourth period.

[0177] Optionally, the cell access parameter further comprises an activation state, and the polarization direction is used to indicate the activation state of the cell where the terminal device is located.

[0178] Optionally, when the polarization direction of the synchronization signal is a third polarization direction, the cell where the terminal device is located is in an activation state; and when the polarization direction of the synchronization signal is a fourth polarization direction, the cell where the terminal device is located is in a non-activation state.

[0179] Optionally, the cell access parameter further comprises an activation state and a cell activation type, and the polarization direction is used to indicate the activation state and the cell activation type of the cell where the terminal device is located.

[0180] Optionally, the synchronization signal comprises a third synchronization signal and a fourth synchronization signal, when the polarization direction of the third synchronization signal is a fifth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction, the cell where the terminal device is located is in an activation state; when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the fifth polarization direction, the cell where the terminal device is located is in a non-activation state and the cell activation type is a passive activation; and when the polarization direction of the third synchronization signal is the sixth polarization direction and the polarization direction of the fourth synchronization signal is the sixth polarization direction, the cell where the terminal device is located is in a non-activation state and the cell activation type is an active activation.

[0181] Optionally, the cell access parameter further comprises an index range of the synchronization signal, and the polarization direction is used to indicate the index range of the synchronization signal.

[0182] Optionally, when the polarization direction of the synchronization signal is a seventh polarization direction, it is determined that the index range of the synchronization signal is a first index range; and when the polarization direction of the synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a second index range.

[0183] Optionally, the synchronization signal includes a fifth synchronization signal and a sixth synchronization signal; when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is a seventh polarization direction, it is determined that the index range of the synchronization signal is a first index range; when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a second index range; when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is a seventh polarization direction, it is determined that the index range of the synchronization signal is a third index range; and when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a fourth index range.

[0184] Optionally, the synchronization signal is a synchronization signal and physical broadcast channel block (SSB).

[0185] In a possible design, when the information indicating apparatus is a network device or a communication module in a network device, the function of the sending module 401 can be implemented by a transceiver circuit. Optionally, the information indicating apparatus can further include a processing module, and the function of the processing module can be implemented by one or more processors. Specifically, the processor can include a Modem chip, or a system on chip (SoC) chip or a SIP chip including a Modem core.

[0186] In a possible design, when the information indicating apparatus is a circuit or chip responsible for communication functions in a network device, such as a Modem chip or a system on chip (SoC) chip or a SIP chip including a Modem core, the function of the sending module 401 can be implemented by an interface circuit or a data transceiver circuit on the chip. Optionally, the information indicating apparatus can further include a processing module, and the function of the processing module can be implemented by a circuit system including one or more processors or processor cores in the chip.

[0187] It should be noted that the implementation of each module can also correspond to the description of the corresponding method embodiment shown in FIG. 2, and the method and function performed by the network device in the above embodiments are executed.

[0188] FIG. 5 is a structural schematic diagram of a terminal device according to an embodiment of the present application. The terminal device can be applied to the system shown in FIG. 1, and perform the functions of the terminal device in the above method embodiments, or implement the steps or processes performed by the terminal device in the above method embodiments.

[0189] As shown in FIG. 5, the terminal device includes a processor 501 and a transceiver 502. The transceiver 502 includes a transmitter 521, a receiver 522 and an antenna 523. The receiver 522 can be configured to receive transmission control information through the antenna 523, and the transmitter 521 can be configured to send transmission feedback information to the network device through the antenna 523. Optionally, the terminal device further includes a memory 503. The processor 501, the transceiver 502 and the memory 503 can communicate with each other through internal connection paths to transfer control and / or data signals. The memory 503 is configured to store a computer program, and the processor 501 is configured to invoke and run the computer program stored in the memory 503 to control the transceiver 502 to transceive signals. Optionally, the terminal device can further include an antenna for transmitting uplink data or uplink control signaling output by the transceiver 502 through wireless signals.

[0190] The processor 501 and the memory 503 can be combined into one processing device, and the processor 501 is configured to execute the program code stored in the memory 503 to implement the above functions. In specific implementation, the memory 503 can be integrated in the processor 501 or independent of the processor 501. The processor 501 can correspond to the processing module in FIG. 3.

[0191] The transceiver 502 can correspond to the receiving module in FIG. 3, and can also be referred to as a transceiving unit or a transceiving module. The transceiver 502 can include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is configured to receive signals, and the transmitter is configured to transmit signals.

[0192] It should be understood that the terminal device shown in FIG. 5 can implement each process involving the terminal device in the method embodiment shown in FIG. 2. The operations and / or functions of each module in the terminal device are respectively implemented to realize the corresponding processes in the above method embodiments. For details, please refer to the description in the above method embodiments, and the detailed description is appropriately omitted here.

[0193] The processor 501 can be configured to perform the actions implemented by the terminal device described in the above method embodiments, and the transceiver 502 can be configured to perform the actions of the terminal device sending or receiving to / from the network device described in the above method embodiments. For details, please refer to the description in the above method embodiments, and the description is not repeated here.

[0194] The processor 501 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic device, transistor logic, hardware components, or any combination thereof. It can implement or execute the various exemplary logical blocks, modules, and circuits described in connection with the disclosure. The processor 501 can also be a combination of computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. The terminal device can also include a communication bus, which can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. The communication bus is used to realize the connection and communication between the components. The transceiver 502 in the embodiments of the present application is used for signaling or data communication with other node devices. The memory 503 can include volatile memory, such as non-volatile random access memory (NVRAM), phase change RAM (PRAM), magnetoresistive RAM (MRAM), etc., and can also include non-volatile memory, such as at least one magnetic disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory device, such as NOR flash memory or NAND flash memory, semiconductor device, such as solid state disk (SSD), etc. The memory 503 can also be at least one storage device located away from the aforementioned processor 501. The memory 503 can also optionally store a set of computer program codes or configuration information. Optionally, the processor 501 can also execute the programs stored in the memory 503. The processor can cooperate with the memory and the transceiver to execute any method and function of the terminal device in the embodiments of the present application.

[0195] FIG. 6 is a structural schematic diagram of a network device provided in the embodiments of the present application. The network device can be applied in the system shown in FIG. 1, and can execute the functions of the network device in the method embodiments, or implement the steps or processes executed by the network device in the method embodiments.

[0196] As shown in FIG. 6, the network device includes a processor 601 and a transceiver 602. The transceiver 602 includes a transmitter 621, a receiver 622 and an antenna 623. The transmitter 621 can be configured to send transmission control information to the terminal device through the antenna 623, and the receiver 622 can be configured to receive transmission feedback information sent by the terminal device through the antenna 623. Optionally, the network device further includes a memory 603. The processor 601, the transceiver 602 and the memory 603 can communicate with each other through internal connection paths to transfer control and / or data signals. The memory 603 is configured to store a computer program, and the processor 601 is configured to invoke and run the computer program stored in the memory 603 to control the transceiver 602 to transceive signals. Optionally, the network device can further include an antenna configured to send uplink data or uplink control signaling output by the transceiver 602 through wireless signals.

[0197] The processor 601 and the memory 603 can be combined into one processing device, and the processor 601 is configured to execute program codes stored in the memory 603 to implement the above functions. In specific implementation, the memory 603 can be integrated in the processor 601 or independent of the processor 601.

[0198] The transceiver 602 can correspond to the sending module in FIG. 4, and can also be referred to as a transceiving unit or a transceiving module. The transceiver 602 can include a receiver (or receiver, receiver circuit) and a transmitter (or transmitter, transmitter circuit). The receiver is configured to receive signals, and the transmitter is configured to transmit signals.

[0199] It should be understood that the network device shown in FIG. 6 can implement each process involving the network device in the method embodiment shown in FIG. 2. Each module in the network device is configured to implement the operation and / or function of the corresponding flow in the above method embodiment. For details, please refer to the description in the above method embodiment. To avoid repetition, the detailed description is appropriately omitted here.

[0200] The processor 601 can be configured to perform the actions implemented by the network device described in the above method embodiments, and the transceiver 602 can be configured to perform the actions of sending or receiving by the network device to / from the terminal device described in the above method embodiments. For details, please refer to the description in the above method embodiments, which will not be repeated here.

[0201] The processor 601 can be various types of processors, as discussed more fully below. The network device can also include a communications bus, which can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, etc. The communications bus is used to enable communications between the components. The transceiver 602 of the device is used to communicate signaling or data with other devices. The memory 603 can be various types of memory, as discussed more fully below. The memory 603 can optionally also be at least one storage device that is located remotely from the processor 601. The memory 603 stores a set of computer program instructions or configuration information, and the processor 601 executes the program instructions in the memory 603. The processor can cooperate with the memory and the transceiver to perform any of the methods or functions of the network device described above.

[0202] The embodiments of the present application also provide a chip system, which includes a processor for supporting a terminal device or a network device to implement the functions involved in any of the embodiments described above, such as generating or processing the measurement results involved in the methods described above.

[0203] In a possible design, the chip system can further include a memory for computer programs and data necessary for the terminal device or the network device. The chip system can be composed of a chip, or can include a chip and other discrete components. The input and output of the chip system correspond to the receiving and sending operations of the terminal device or the network device in the method embodiments, respectively.

[0204] According to the method provided in the embodiments of the present application, the present application also provides a computer program product, which includes a computer program. When the computer program runs on a computer, the computer program causes the computer to perform the method in any one of the embodiments shown in FIG. 2.

[0205] According to the method provided in the embodiments of the present application, the present application also provides a computer readable medium, which stores a computer program. When the computer program runs on a computer, the computer program causes the computer to perform the method in any one of the embodiments shown in FIG. 2.

[0206] According to the method provided in the embodiments of the present application, the present application also provides a communication system, which includes one or more terminal devices and one or more network devices described above.

[0207] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media sets. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as high-density digital video disc (digital video disc, DVD)), or semiconductor media (such as solid state disc (solid state disc, SSD)) and the like.

[0208] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for indicating information, characterized in that The method further comprises: receiving a synchronization signal sent by a network device through a polarization direction; determining a cell access parameter of a cell where a terminal device is located based on the polarization direction of the synchronization signal. The method of claim 1, wherein The cell access parameter comprises a period of the synchronization signal; and the determining the cell access parameter of the cell where the terminal device is located based on the polarization direction of the synchronization signal comprises: determining the period of the synchronization signal based on the polarization direction of the synchronization signal. The method of claim 2, wherein The determining the period of the synchronization signal based on the polarization direction of the synchronization signal comprises: when the polarization direction of the synchronization signal is a first polarization direction, determining that the period of the synchronization signal is a first period; when the polarization direction of the synchronization signal is a second polarization direction, determining that the period of the synchronization signal is a second period. The method of claim 2, wherein The synchronization signal comprises a first synchronization signal and a second synchronization signal; and the determining the period of the synchronization signal based on the polarization direction of the synchronization signal comprises: when the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, determining that the period of the synchronization signal is the first period; when the polarization direction of the first synchronization signal is the first polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, determining that the period of the synchronization signal is the second period; when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the first polarization direction, determining that the period of the synchronization signal is a third period; when the polarization direction of the first synchronization signal is the second polarization direction and the polarization direction of the second synchronization signal is the second polarization direction, determining that the period of the synchronization signal is a fourth period. The method according to any one of claims 1 to 4, characterized in that The cell access parameter further comprises an activation state; and the determining the cell access parameter of the cell where the terminal device is located based on the polarization direction of the synchronization signal comprises: determining an activation state of the cell where the terminal device is located based on the polarization direction of the synchronization signal. The method of claim 5, wherein The determining the activation state of the cell where the terminal device is located based on the polarization direction of the synchronization signal comprises: when the polarization direction of the synchronization signal is a third polarization direction, determining that the cell where the terminal device is located is in an activated state; when the polarization direction of the synchronization signal is a fourth polarization direction, determining that the cell where the terminal device is located is in a non-activated state. The method according to any one of claims 1 to 4, characterized in that The cell access parameter further comprises an activation state and a cell activation type; The determining the cell access parameter of the cell where the terminal device is located based on the polarization direction of the synchronization signal comprises: determining the activation state and the cell activation type of the cell where the terminal device is located based on the polarization direction of the synchronization signal. The method of claim 7, wherein The synchronization signal comprises a third synchronization signal and a fourth synchronization signal; and the determining the activation state and the cell activation type of the cell where the terminal device is located based on the polarization direction of the synchronization signal comprises: determining that the cell where the terminal device is located is in an active state when the polarization direction of the third synchronization signal is a fifth polarization direction and the polarization direction of the fourth synchronization signal is a fifth polarization direction or a sixth polarization direction; determining that the cell where the terminal device is located is in an inactive state and the cell activation type is passive activation when the polarization direction of the third synchronization signal is a sixth polarization direction and the polarization direction of the fourth synchronization signal is a fifth polarization direction; determining that the cell where the terminal device is located is in an inactive state and the cell activation type is active activation when the polarization direction of the third synchronization signal is a sixth polarization direction and the polarization direction of the fourth synchronization signal is a sixth polarization direction. The method according to any one of claims 1 to 8, characterized in that The cell access parameter further comprises an index range of the synchronization signal; and the determining the cell access parameter of the cell where the terminal device is located based on the polarization direction of the synchronization signal comprises: determining the index range of the synchronization signal based on the polarization direction of the synchronization signal. The method of claim 9, wherein The determining the index range of the synchronization signal based on the polarization direction of the synchronization signal comprises: determining that the index range of the synchronization signal is a first index range when the polarization direction of the synchronization signal is a seventh polarization direction; determining that the index range of the synchronization signal is a second index range when the polarization direction of the synchronization signal is an eighth polarization direction. The method of claim 9, wherein The synchronization signal comprises a fifth synchronization signal and a sixth synchronization signal; and the determining the index range of the synchronization signal based on the polarization direction of the synchronization signal comprises: determining that the index range of the synchronization signal is a first index range when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is a seventh polarization direction; determining that the index range of the synchronization signal is a second index range when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction; determining that the index range of the synchronization signal is a third index range when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is a seventh polarization direction; determining that the index range of the synchronization signal is a fourth index range when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction. The method according to any one of claims 1 to 11, characterized in that The synchronization signal is a synchronization signal and physical broadcast channel block (SSB). A method for indicating information, characterized in that The method further comprises: sending a synchronization signal to a terminal device through a polarization direction, the polarization direction being used to indicate a cell access parameter of a cell where the terminal device is located. The method of claim 13, wherein The cell access parameter comprises a period of the synchronization signal, and the polarization direction is used to indicate the period of the synchronization signal. The method of claim 14, wherein The period of the synchronization signal is a first period when the polarization direction of the synchronization signal is a first polarization direction, and the period of the synchronization signal is a second period when the polarization direction of the synchronization signal is a second polarization direction. The method of claim 14, wherein The synchronization signal includes a first synchronization signal and a second synchronization signal. When the polarization direction of the first synchronization signal is a first polarization direction, and the polarization direction of the second synchronization signal is the first polarization direction, a period of the synchronization signal is a first period. When the polarization direction of the first synchronization signal is the first polarization direction, and the polarization direction of the second synchronization signal is a second polarization direction, the period of the synchronization signal is a second period. When the polarization direction of the first synchronization signal is the second polarization direction, and the polarization direction of the second synchronization signal is the first polarization direction, the period of the synchronization signal is a third period. When the polarization direction of the first synchronization signal is the second polarization direction, and the polarization direction of the second synchronization signal is the second polarization direction, the period of the synchronization signal is a fourth period. The method according to any one of claims 13-16, characterized in that The cell access parameter further includes an activation state, and the polarization direction is used to indicate the activation state of the cell where the terminal device is located. The method of claim 17, wherein When the polarization direction of the synchronization signal is a third polarization direction, the cell where the terminal device is located is in an activated state; and when the polarization direction of the synchronization signal is a fourth polarization direction, the cell where the terminal device is located is in a non-activated state. The method according to any one of claims 13 to 18, characterized in that The cell access parameter further includes an activation state and a cell activation type, and the polarization direction is used to indicate the activation state and the cell activation type of the cell where the terminal device is located. The method of claim 19, wherein The synchronization signal includes a third synchronization signal and a fourth synchronization signal, When the polarization direction of the third synchronization signal is a fifth polarization direction, and the polarization direction of the fourth synchronization signal is the fifth polarization direction or a sixth polarization direction, the cell where the terminal device is located is in an activated state. When the polarization direction of the third synchronization signal is the sixth polarization direction, and the polarization direction of the fourth synchronization signal is the fifth polarization direction, the cell where the terminal device is located is in a non-activated state, and the cell activation type is a passive activation. When the polarization direction of the third synchronization signal is the sixth polarization direction, and the polarization direction of the fourth synchronization signal is the sixth polarization direction, the cell where the terminal device is located is in a non-activated state, and the cell activation type is an active activation. The method according to any one of claims 13-20, characterized in that The cell access parameter further includes an index range of the synchronization signal, and the polarization direction is used to indicate the index range of the synchronization signal. The method of claim 21, wherein When the polarization direction of the synchronization signal is a seventh polarization direction, it is determined that the index range of the synchronization signal is a first index range; and when the polarization direction of the synchronization signal is an eighth polarization direction, it is determined that the index range of the synchronization signal is a second index range. The method of claim 21, wherein The synchronization signal includes a fifth synchronization signal and a sixth synchronization signal. When the polarization direction of the fifth synchronization signal is the seventh polarization direction, and the polarization direction of the sixth synchronization signal is the seventh polarization direction, it is determined that the index range of the synchronization signal is the first index range. when the polarization direction of the fifth synchronization signal is a seventh polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, determining that the index range of the synchronization signal is a second index range; when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is a seventh polarization direction, determining that the index range of the synchronization signal is a third index range; when the polarization direction of the fifth synchronization signal is an eighth polarization direction and the polarization direction of the sixth synchronization signal is an eighth polarization direction, determining that the index range of the synchronization signal is a fourth index range. The method according to any one of claims 13 to 23, characterized in that The synchronization signal is a synchronization signal and physical broadcast channel block (SSB). An information indicating device characterized by comprising: The information indication device comprises a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program to make the information indication device execute the method in any one of claims 1-12. An information indicating device characterized by comprising: The information indication device comprises a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program to make the information indication device execute the method in any one of claims 13-24. A computer-readable storage medium, characterized by The computer readable storage medium comprises a computer program, when the computer program is run by the processor, the method as claimed in any one of claims 1-12, or any one of claims 13-24 is realized. A chip characterized by The chip comprises a processor and a communication interface, the communication interface is used to communicate with external devices or internal devices, and the processor is used to realize the method as claimed in any one of claims 1-12, or any one of claims 13-24. A computer program product comprising a computer program, characterized in that When the computer program is executed, the computer executes the method as claimed in any one of claims 1-12, or any one of claims 13-24.

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