Communication methods and communication devices

Abstract

Provided are communication methods and communication devices. A method comprises: a terminal device receives first information sent by a network device, the first information being used for indicating that a transmission cycle of a synchronization signal is or is adjusted to a first transmission cycle, and / or the first information being used for indicating that an index of the synchronization signal is or is adjusted to a first index.

Description

Communication methods and communication equipment Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Technology

[0002] In some communication systems, network devices periodically transmit synchronization signals to terminal devices, which can lead to high energy consumption during the transmission of these signals. Reducing the energy consumption of synchronization signal transmission is a technical problem that needs to be solved. Summary of the Invention

[0003] This application provides a communication method and a communication device. The various aspects covered by this application are described below.

[0004] In a first aspect, a communication method is provided, the method comprising: a terminal device receiving first information sent by a network device, the first information being used to indicate that the transmission period of a synchronization signal is or is adjusted to a first transmission period, and / or the first information being used to indicate that the index of the synchronization signal is or is adjusted to a first index.

[0005] In a second aspect, a communication method is provided, the method comprising: a network device sending first information to a terminal device, the first information being used to indicate that the transmission period of a synchronization signal is or is adjusted to a first transmission period, and / or the first information being used to indicate that the index of the synchronization signal is or is adjusted to a first index.

[0006] Thirdly, a communication device is provided, the communication device being a terminal device, the communication device comprising: a first receiving unit, configured to receive first information sent by a network device, the first information being configured to indicate that the transmission period of a synchronization signal is or is adjusted to a first transmission period, and / or the first information being configured to indicate that the index of the synchronization signal is or is adjusted to a first index.

[0007] Fourthly, a communication device is provided, the communication device being a network device, the communication device comprising: a first transmitting unit, configured to transmit first information to a terminal device, the first information being configured to indicate that the transmission period of a synchronization signal is or is adjusted to a first transmission period, and / or the first information being configured to indicate that the index of the synchronization signal is or is adjusted to a first index.

[0008] Fifthly, a communication device is provided, including a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to invoke the program in the memory, and to control the transceiver to receive or transmit signals so that the communication device performs the method as described in the first or second aspect.

[0009] A sixth aspect provides an apparatus including a processor for calling a program from a memory to cause the apparatus to perform the method as described in the first or second aspect.

[0010] In a seventh aspect, a chip is provided, including a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in the first or second aspect.

[0011] Eighthly, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method as described in the first or second aspect.

[0012] A ninth aspect provides a computer program product, characterized in that it includes a program that causes a computer to perform the method as described in the first or second aspect.

[0013] In a tenth aspect, a computer program is provided that causes a computer to perform the method as described in the first or second aspect.

[0014] In this embodiment, first information is introduced for the transmission process of the synchronization signal. The first information indicates that the transmission period of the synchronization signal is or is adjusted to a first transmission period, or that the index of the synchronization signal is or is adjusted to a first index. The terminal device can use the first information to know the current transmission period of the synchronization signal or the transmission period that will be used to transmit the synchronization signal. Alternatively, the terminal device can use the first information to know the index of the currently transmitted synchronization signal or the index of the synchronization signal that will be transmitted. In this way, the power consumption of the synchronization signal transmission can be reduced. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the communication system used in the embodiments of this application.

[0016] Figure 2 is a schematic flowchart of the communication method provided in an embodiment of this application.

[0017] Figure 3 is an example diagram of adjusting the transmission period of the synchronization signal based on the synchronization signal according to an embodiment of this application.

[0018] Figure 4 is an example diagram of adjusting the transmission period of the synchronization signal based on downlink control information (DCI) according to an embodiment of this application.

[0019] Figure 5 is an example diagram of adjusting the transmission period of the synchronization signal based on DCI according to an embodiment of this application.

[0020] Figure 6 is an example diagram of adjusting the transmission period of the synchronization signal based on DCI according to another embodiment of this application.

[0021] Figure 7 is an example diagram of adjusting the transmission period of the synchronization signal based on DCI according to another embodiment of this application.

[0022] Figure 8 is a schematic diagram of the structure of a communication device provided in an embodiment of this application.

[0023] Figure 9 is a schematic diagram of the structure of a communication device provided in another embodiment of this application.

[0024] Figure 10 is a schematic diagram of the structure of the communication device provided in an embodiment of this application. Detailed Implementation

[0025] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0026] Communication system

[0027] The embodiments of this application can be applied to various communication systems. For example, the embodiments of this application can be applied to Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A), New Radio (NR), evolution systems of NR, LTE-based access to unlicensed spectrum (LTE-U), NR-based access to unlicensed spectrum (NR-U), Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), and 5th-generation (5G) systems. The embodiments of this application can also be applied to other communication systems, such as future communication systems. This future communication system could be, for example, a sixth-generation mobile communication system or a satellite communication system.

[0028] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can now support not only traditional cellular communication but also one or more other types of communication. For example, a communication system can support one or more of the following communication methods: device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, and vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to communication systems that support the above-mentioned communication methods.

[0029] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0030] The communication system in this application embodiment can be applied to unlicensed spectrum. This unlicensed spectrum can also be considered a shared spectrum. Alternatively, the communication system in this application embodiment can also be applied to licensed spectrum. This licensed spectrum can also be considered a dedicated spectrum.

[0031] The embodiments of this application can be applied to terrestrial networks (TN) systems as well as non-terrestrial networks (NTN) systems. As an example, the NTN system can include an NR-based NTN system and an Internet of Things (IoT)-based NTN system.

[0032] A communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of this application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.

[0033] In some embodiments, the terminal device may be a station (ST) in a WLAN. In some embodiments, the terminal device may also be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a next-generation communication system (e.g., NR system), or terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0034] In some embodiments, the terminal device may be a device that provides voice and / or data connectivity to the user. For example, the terminal device may be a handheld device, an in-vehicle device, etc., with wireless connectivity. As some specific examples, the terminal device may be a mobile phone, tablet, laptop, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.

[0035] In some embodiments, the terminal device may be deployed on land. For example, the terminal device may be deployed indoors or outdoors. In some embodiments, the terminal device may be deployed on water, such as on a ship. In some embodiments, the terminal device may be deployed in the air, such as on an airplane, balloon, or satellite.

[0036] In addition to terminal devices, the communication system may also include one or more network devices. In this embodiment, the network device can be a device for communicating with the terminal device; this network device may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. In this embodiment, the network device may refer to an access network (RAN) node (or device) that connects the terminal device to the wireless network. Access network equipment can broadly encompass various names listed below, or be interchangeable with them, such as: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, secondary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. Base stations can be macro base stations, micro base stations, relay nodes, donor nodes, or similar entities, or combinations thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, or a device that performs base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device performing base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0037] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0038] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0039] By way of example and not limitation, in the embodiments of this application, the network device may have mobility characteristics; for example, the network device may be a mobile device. In some embodiments of this application, the network device may be satellite-based or space-based, that is, the network device is installed on a satellite or flying equipment. In some embodiments of this application, the network device may also be a base station installed in locations such as land or water.

[0040] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0041] For example, Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. As shown in Figure 1, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0042] Figure 1 illustrates an exemplary network device and two terminal devices. In some embodiments of this application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit this aspect.

[0043] In some embodiments of this application, the wireless communication system shown in FIG1 may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but this application does not limit this.

[0044] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Taking the communication system 100 shown in FIG1 as an example, the communication devices may include network devices 110 and terminal devices 120 with communication functions. Network devices 110 and terminal devices 120 can be the specific devices described above, which will not be repeated here. The communication devices may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in this application embodiment.

[0045] Transmission of synchronization signals

[0046] In some communication systems (e.g., traditional NR systems), network devices (e.g., base stations) periodically send synchronization signals to terminal devices (e.g., UEs). These synchronization signals are also called synchronization signal blocks (SSBs). Synchronization signals can be used by idle terminal devices to access the network. Alternatively, they can be used by terminal devices for downlink time synchronization and / or to obtain system information. Because network devices cannot predict the number of idle terminal devices that may need synchronization signals, some periodically transmitted synchronization signals may be wasted. Furthermore, because network devices need to maintain synchronization signal transmission, they cannot enter deep sleep mode. Therefore, the energy consumption of network devices for transmitting synchronization signals is significant, which is detrimental to the future operation of cellular systems and to the environment, hindering carbon emission reduction and mitigation of global warming. In conclusion, reducing the energy consumption of synchronization signal transmission is a technical problem that needs to be solved.

[0047] However, if network devices do not send synchronization signals, idle terminal devices will be prevented from accessing the cell, making the cell undiscoverable. Therefore, one solution is to optimize the transmission of synchronization signals. For example, network devices could be allowed to adjust the density of synchronization signals as needed. However, how idle terminal devices know how the network devices adjust the transmission of synchronization signals is also a technical problem that needs to be solved.

[0048] To address the aforementioned problems, this application provides a communication method. This method introduces first information into the transmission process of a synchronization signal. The first information indicates that the transmission period of the synchronization signal is or has been adjusted to a first transmission period, or it indicates that the index of the synchronization signal is or has been adjusted to a first index. The terminal device can use the first information to determine the current transmission period of the synchronization signal or the transmission period that will be used to transmit the synchronization signal. Alternatively, the terminal device can use the first information to determine the index of the currently transmitted synchronization signal or the index of the synchronization signal that will be transmitted. In this way, the energy consumption of the synchronization signal transmission can be reduced.

[0049] The communication method provided in the embodiments of this application will be described in detail below with reference to Figure 2.

[0050] Figure 2 is a schematic flowchart of the communication method provided in an embodiment of this application. The method in Figure 2 is described from the perspective of interaction between a network device and a terminal device. The terminal device in Figure 2 can be the terminal device 120 mentioned above. This terminal device can be, for example, a UE. The network device in Figure 2 can be the network device 110 mentioned above. This network device can be, for example, a base station.

[0051] Referring to Figure 2, the communication method provided in this application embodiment may include the following step S210.

[0052] In step S210, the terminal device receives the first information sent by the network device; correspondingly, the network device sends the first information to the terminal device.

[0053] In some implementations, the first information can be used to indicate that the transmission period of the synchronization signal is or is adjusted to the first transmission period. This synchronization signal can also be called the SSB. The synchronization signal can be used by the terminal device to access the network device. Alternatively, the synchronization signal can be used by the terminal device to perform downlink time synchronization and / or obtain system information. When the synchronization signal is an SSB, the transmission period of the synchronization signal can also be called the SSB period.

[0054] The transmission period of a synchronization signal can be the transmission period of a single synchronization signal. Alternatively, the transmission period of a synchronization signal can also be the transmission period of a set of synchronization signals. A set of synchronization signals can contain one or more synchronization signals. For a set of synchronization signals, the transmission period of the synchronization signals within the set can be the same as the transmission period of the set itself. Alternatively, the transmission period of the synchronization signals within the set can be different from the transmission period of the set itself. Taking an SSB (Synchronization Block Bundle) as an example, the transmission period of the SSBs within an SSB burst can be the same as or different from the transmission period of the SSB burst itself.

[0055] In some cases, the first information can be used to indicate that the transmission period of the synchronization signal is a first transmission period. In this case, after receiving the first information, the terminal device can know that the synchronization signal is being transmitted at the period indicated by the first information. The first transmission period can also be called the current transmission period of the synchronization signal. For example, if the first information sent by the network device to the terminal device indicates that the transmission period of the synchronization signal is 80ms, then after receiving the first information, the terminal device can know that the synchronization signal is being transmitted with a period of 80ms.

[0056] In other cases, the first information can be used to adjust the transmission period of the synchronization signal. When the first information is used to adjust the transmission period of the synchronization signal, it can instruct the transmission period of the synchronization signal to be adjusted to a first transmission period. In this case, after receiving the first information, the terminal device can know that the transmission period of the synchronization signal will be adjusted to the first transmission period. The first transmission period can also be referred to as the adjusted transmission period of the synchronization signal or the transmission period that will be used to transmit the synchronization signal. For example, a network device is transmitting a synchronization signal with a period of 80ms. When the network device decides to adjust the transmission period of the synchronization signal, it can send the first information to the terminal device, which instructs the transmission period of the synchronization signal to be adjusted to 20ms. After receiving the first information, the terminal device can know that the transmission period of the synchronization signal will be adjusted to 20ms.

[0057] In other implementations, the first information can be used to indicate that the index of the synchronization signal is or is adjusted to the first index. The index of the synchronization signal can be associated with the transmission direction of the synchronization signal. Synchronization signals with different indices can correspond to different transmission directions.

[0058] In some cases, the first information can be used to indicate that the index of the synchronization signal is the first index. In this case, after receiving the first information, the terminal device can know the index of the synchronization signal being transmitted, and thus know the transmission direction of the synchronization signal.

[0059] In other cases, the first information can be used to adjust the index of the synchronization signal. When the first information is used to adjust the index of the synchronization signal, it can indicate that the index of the synchronization signal to be transmitted is the first index. In this case, after receiving the first information, the terminal device can know the index of the synchronization signal to be transmitted, and thus know the transmission direction of the synchronization signal.

[0060] In some implementations, the first information can be carried in the synchronization signal. That is, the network device can send a synchronization signal to the terminal device, and this synchronization signal can contain first information about the period of the synchronization signal. Upon receiving the synchronization signal, the terminal device can determine the current transmission period of the synchronization signal. If the network device needs to adjust the transmission period of the synchronization signal, it can adjust the transmission period indicated in the first information contained in the synchronization signal to inform the terminal device of the adjusted synchronization signal transmission period. For example, if the network device is transmitting the synchronization signal with a period of 80ms, it can indicate a transmission period of 80ms in the first information contained in the synchronization signal to inform the terminal device that the current transmission period of the synchronization signal is 80ms. If the network device decides to adjust the transmission period of the synchronization signal, it can change the transmission period indicated in the first information contained in the synchronization signal to 20ms to inform the terminal device that the adjusted synchronization signal transmission period is 20ms.

[0061] In some implementations, the first information can be carried in first signaling for the terminal device. "First signaling for the terminal device" can be the first signaling for the terminal device mentioned in step S210. Alternatively, "first signaling for the terminal device" can also be the first signaling for a group of terminal devices, including the terminal devices mentioned in step S210. Here, the first signaling can be dynamic signaling sent by the network device to the terminal device. For example, the first signaling can be dynamic signaling sent by the network device to one or a group of terminal devices. The first signaling can be carried in a medium access control element (MAC CE) or DCI. That is, when the network device needs to adjust the transmission period of the synchronization signal, it can send the first signaling to the terminal device, which can contain an indication of the adjusted transmission period of the synchronization signal. After receiving the first signaling, the terminal device can know the transmission period that will be used to transmit the synchronization signal. For example, the network device is transmitting the synchronization signal with a period of 80ms. When a network device decides to adjust the transmission period of a synchronization signal, it can send a Direct Message Control (DCI) to the terminal device. This DCI instructs the terminal device to adjust the transmission period of the synchronization signal to 20ms. Upon receiving this DCI, the terminal device will know that the transmission period of the synchronization signal will be adjusted to 20ms.

[0062] As described in step S210, this embodiment introduces first information for the transmission process of the synchronization signal. The first information indicates that the transmission period of the synchronization signal is or is adjusted to a first transmission period, or it indicates that the index of the synchronization signal is or is adjusted to a first index. The terminal device can obtain the current transmission period of the synchronization signal or the transmission period that will be used to transmit the synchronization signal through the first information. Alternatively, the terminal device can obtain the index of the currently transmitted synchronization signal or the index of the synchronization signal that will be transmitted through the first information. In this way, the transmission power consumption of the synchronization signal can be reduced.

[0063] Step S210 mentions that in some implementations, the first information can be carried in a synchronization signal or a first signaling signal for the terminal device. The following describes these two implementations in detail with reference to Figures 3 to 7.

[0064] Implementation Method 1: The first information is carried in the synchronization signal

[0065] In implementation one, the first information can be carried in the synchronization signal. In this implementation, the network device can send a synchronization signal to the terminal device, which may contain first information about the period of the synchronization signal. After receiving the synchronization signal, the terminal device can know the current transmission period of the synchronization signal or the transmission period that will be used to transmit the synchronization signal. Refer to Figure 3, which is an example diagram of adjusting the transmission period of the synchronization signal based on the synchronization signal according to an embodiment of this application. In the example shown in Figure 3, the synchronization signal is an SSB. During the first 80ms time interval shown in Figure 3, the SSB transmitted by the network device to the terminal device contains first information, which indicates that the transmission period of the SSB is 20ms. When the terminal device receives the SSB sent by the network device, it can know from the first information contained in the SSB that the SSB is being transmitted with a period of 20ms.

[0066] In implementation method one, during the transmission of the synchronization signal, if the network device needs to adjust the transmission period of the synchronization signal, it can change the transmission period indicated in the first information. For example, if the network device is transmitting the synchronization signal with a period of 80ms, the network device indicates a transmission period of 80ms in the first information included in the currently transmitted synchronization signal to inform the terminal device that the current transmission period of the synchronization signal is 80ms. If the network device decides to adjust the transmission period of the synchronization signal, it can change the transmission period indicated in the first information included in the synchronization signal to 20ms to inform the terminal device that the adjusted transmission period of the synchronization signal is 20ms.

[0067] In implementation method one, if the synchronization signal is SSB, the first information can be carried in the master information block (MIB) or the physical broadcast channel (PBCH). When the first information is carried in the MIB or PBCH, the first information can also be called the MIB or PBCH payload.

[0068] As mentioned above, the first information can be used to indicate that the transmission period of the synchronization signal is a first transmission period. In implementation method one, the first transmission period indicated by the first information can be the transmission period of the synchronization signal within a first time interval. That is, within the first time interval, the synchronization signal is transmitted with the first transmission period indicated by the first information as the period. Or, in other words, within the first time interval, the first transmission period indicated by the first information will not change. Here, the first time interval can be understood as a time period. The first time interval can be an integer millisecond. The first time interval can be determined based on predefined information. The first time interval can also be determined based on the configuration information of the network device. The first time interval can be a periodic time interval.

[0069] When the first time interval is a periodic time interval, it can be a continuous periodic time interval. In this case, the first transmission period indicated by the first information can be the transmission period of the synchronization signal within the current first time interval. Alternatively, the first transmission period indicated by the first information can be the transmission period of the synchronization signal within the next first time interval after the current first time interval. Here, the current first time interval can be understood as the time interval in which the terminal device receives the first information. That is, the terminal device receives the first information within the current first time interval.

[0070] As a concrete example, referring back to Figure 3, the first time interval shown in Figure 3 is 80ms. During the first 80ms time interval, the network device transmits a SSB containing first information indicating that the SSB's transmission period is 20ms. When the UE receives the SSB and the corresponding first information, the UE knows that the SSB is being transmitted with a period of 20ms within the current 80ms time interval. During the second and third 80ms time intervals, the network device adjusts the SSB's transmission period. The network device changes the transmission period indicated by the first information contained in the SSB to 80ms. When the UE receives the SSB during the second or third 80ms time interval, the UE knows that the SSB is being transmitted with a period of 80ms. During the fourth 80ms time interval, the network device adjusts the SSB's transmission period again. The network device changes the transmission period indicated by the first information contained in the SSB to 40ms. When the UE receives the first information during the fourth 80ms time interval, the UE knows that the SSB is being transmitted with a period of 40ms. As another concrete example, assume the first time interval is 80ms. Within the first 80ms interval, the SSB transmitted by the network device includes first information indicating that the SSB transmission period is 20ms. When the UE receives the SSB and the corresponding first information, the UE knows that the SSB will be transmitted again within the second 80ms interval with a period of 20ms. Similarly, the transmission period indicated by the first information received by the UE in the second 80ms interval is the transmission period of the SSB in the third 80ms interval, and the transmission period indicated by the first information received by the UE in the third 80ms interval is the transmission period of the SSB in the fourth 80ms interval.

[0071] In some embodiments, the first transmission period indicated by the first information can be the transmission period of a synchronization signal within a plurality of first time intervals. For example, the UE receives an SSB transmitted by the network device within the first 80ms time interval, the SSB including the first information. Upon receiving the SSB and the corresponding first information, the UE knows that the SSB is transmitted with an 80ms period within the current 80ms time interval and within one or more 80ms time intervals after the current 80ms time interval.

[0072] As described above, in the first implementation, a synchronization signal is used to indicate the transmission period of the synchronization signal. Using this implementation, non-camped terminal equipment can also benefit from the adjustment of the synchronization signal period. For example, when the transmission period of the synchronization signal becomes a smaller value, non-camped terminal equipment can also measure the synchronization signal in fast mode, thereby reducing the delay in cell measurement and cell selection or reselection.

[0073] However, using only the synchronization signal to indicate the period of the synchronization signal also presents some problems. For example, for camped or connected terminal devices, in order to keep up with the latest synchronization signal period, these terminal devices need to read the first information in each first time interval, which leads to higher power consumption of the terminal devices.

[0074] To address the aforementioned problems, this application provides a second implementation method. The second implementation method will be described in detail below.

[0075] Implementation Method 2: The first information is carried in the first signaling message for the terminal device.

[0076] In implementation method two, the first information can be carried in the first signaling for the terminal device. The "first signaling for the terminal device" can be the first signaling for the terminal device mentioned in step S210. Alternatively, the "first signaling for the terminal device" can also be the first signaling for a group of terminal devices, including the terminal devices mentioned in step S210. Here, the first signaling can be dynamic signaling sent by the network device to the terminal device. For example, the first signaling can be dynamic signaling sent by the network device to one or a group of terminal devices. That is, when the network device needs to adjust the transmission period of the synchronization signal, it can send the first signaling to the terminal device, which can include an indication of the adjusted transmission period of the synchronization signal. After receiving the first signaling, the terminal device can know the transmission period that will be used to transmit the synchronization signal. For example, the network device is transmitting the synchronization signal with a period of 80ms. When the network device decides to adjust the transmission period of the synchronization signal, it can send the first signaling to the terminal device, which can indicate that the transmission period of the synchronization signal will be adjusted to 20ms. After receiving the first signaling, the terminal device can know that the transmission period of the synchronization signal will be adjusted to 20ms.

[0077] The first signaling message can be carried on the MAC CE. Alternatively, the first signaling message can also be carried on the DCI. The DCI here can be, for example, a group common DCI. Different terminal devices corresponding to this group common DCI can share the same radio network temporary identifier (RNTI).

[0078] As described above, the first information carried in the first signaling can be used to indicate that the transmission period of the synchronization signal is the first transmission period. Alternatively, the first information carried in the first signaling can be used to indicate that the transmission period of the synchronization signal be adjusted to the first transmission period. The first transmission period can take effect at a certain time or moment. "The first transmission period takes effect" can be understood as the network device starting to transmit the synchronization signal with the first transmission period as the cycle. The time or moment when the first transmission period takes effect can be called the effective time of the first transmission period. Alternatively, the time or moment when the first transmission period takes effect can also be called the starting position of the first transmission period in the time domain.

[0079] In some embodiments, the effective time of the first transmission period may be related to the second time interval.

[0080] The second time interval here can be understood as a periodic time interval. Within a second time interval, the transmission period of the synchronization signal can remain unchanged. That is, if the terminal device receives the first signaling within a certain second time interval, it does not mean that the network device immediately transmits the synchronization signal with the first transmission period. Instead, the network device can still continue to transmit the synchronization signal with the original transmission period within the second time interval. The second time interval can also be called the period change interval or period change boundary of the synchronization signal. When the synchronization signal is an SSB, the second time interval can also be called the SSB period change interval or SSB period change boundary. Refer to Figure 4, which is an example diagram of adjusting the transmission period of the synchronization signal based on DCI provided in an embodiment of this application. As shown in Figure 4, within the first SSB period change boundary, the network device transmits the SSB with a period of 80ms. And, within the first SSB period change boundary, the terminal device receives a DCI indicating that the transmission period of the SSB should be adjusted to 20ms. After receiving the DCI, within the first SSB period change boundary, the network device does not change the transmission period of the SSB, but continues to transmit the SSB with a period of 80ms.

[0081] The second time interval here may be related to one or more of the following: the maximum transmission period of the synchronization signal configured for the terminal device; the maximum transmission period of the synchronization signal supported by the network device; the monitoring period of the first signaling; and the update period of the system message configured for the terminal device. The second time interval may be an integer millisecond. When the second time interval is related to the maximum transmission period of the synchronization signal configured for the terminal device, the second time interval may be less than or equal to the maximum transmission period of the synchronization signal configured for the terminal device. When the second time interval is related to the maximum transmission period of the synchronization signal supported by the network device, the second time interval may be less than or equal to the maximum transmission period of the synchronization signal supported by the network device. When the second time interval is related to the monitoring period of the first signaling, the second time interval may be less than or equal to the monitoring period of the first signaling. When the synchronization signal is an SSB, the maximum transmission period of the SSB configured for the terminal device may, for example, be 80 ms, and the maximum transmission period of the SSB supported by the network device may, for example, be 160 ms or 320 ms. When the first signaling is a DCI, the monitoring period of the first signaling may be the period of the time-frequency resources used to monitor the DCI.

[0082] When the effective time of the first transmission period is related to the second time interval, the effective time of the first transmission period can be related to the following time: the start time of the next second time interval after the second time interval in which the first signaling is received. As mentioned earlier, the transmission period of the synchronization signal can remain unchanged within the second time interval in which the terminal device receives the first signaling. In some cases, the effective time of the first transmission period can be related to the start time of the next second time interval in which the terminal device receives the first signaling, or the time in which the first signaling is received. For example, the effective time of the first transmission period can be the start time of the next second time interval in which the terminal device receives the first signaling, or the time in which the first signaling is received. As a specific example, refer to Figure 4 again. As can be seen from the previous introduction to Figure 4, within the first SSB period change boundary, the terminal device receives a DCI indicating that the transmission period of the SSB should be adjusted to 20ms. After receiving the DCI, within the first SSB period change boundary, the network device does not change the transmission period of the SSB, but continues to transmit the SSB at a period of 80ms. Within the second SSB period change boundary, the network device transmits the SSB at a period of 20ms.

[0083] In other embodiments, the effective time of the first transmission cycle may be indicated by the second information.

[0084] The second information here can be information contained in the first signaling. That is, the first signaling can contain second information, which can be used to indicate the effective time of the first transmission period. In this case, the first signaling not only contains the first information, but also the second information used to indicate the effective time of the first transmission period. After receiving the first signaling, the terminal device can know that the network device has adjusted the transmission period of the synchronization signal from the effective time of the first transmission period indicated by the first signaling.

[0085] In some cases, the second information can indicate the effective time of the first transmission period by indicating a first time offset. In this case, the effective time of the first transmission period can be related to the reception time of the second information and the first time offset. For example, if the terminal device receives the second information at time t0 and the first time offset is offset, then the effective time of the first transmission period can be (t0 + offset).

[0086] In other cases, the second information may indicate the effective time of the first transmission period by indicating one or more of the following: system frame number (SFN) index; time slot index; half-frame index.

[0087] In other embodiments, the effective time of the first transmission period may be related to one or more of the following: the reception time of the first signaling; the first delay; and the first time-domain position. The first delay may be related to the processing time of the first signaling. The first time-domain position may be related to one or more of the following: the first transmission period; the index of the synchronization signal; and the half-frame index. The first time-domain position can also be referred to as the candidate position of the synchronization signal corresponding to the first transmission period. As shown in Figures 4 to 7, in Figures 4 to 7, the first row of small squares corresponding to the 80ms SSB represents the candidate position of the SSB corresponding to the 80ms transmission period, and the first row of small squares corresponding to the 20ms SSB represents the candidate position of the SSB corresponding to the 20ms transmission period.

[0088] In some cases, the effective time of the first transmission cycle can be related to the reception time of the first signaling. For example, the effective time of the first transmission cycle may be the reception time of the first signaling. That is, after the terminal device receives the first signaling, the network device immediately transmits the synchronization signal with the first transmission cycle.

[0089] In some cases, the effective time of the first transmission cycle can be related to the reception time of the first signaling and the first time domain position. For example, the effective time of the first transmission cycle can be the first time domain position after the reception time of the first signaling. That is, after the terminal device receives the first signaling, the network device does not immediately transmit the synchronization signal in the first transmission cycle, but instead starts transmitting the synchronization signal in the first transmission cycle from the first time domain position after the reception time of the first signaling.

[0090] In other cases, the effective time of the first transmission period can be related to the reception time of the first signaling and the first delay. This first delay can be related to the processing time of the first signaling. That is, after the terminal device receives the first signaling, the network device does not immediately transmit the synchronization signal with the first transmission period, but only begins transmitting the synchronization signal with the first transmission period after the first delay has elapsed since the terminal device received the first signaling. After receiving the first signaling, the terminal device needs a period of time to process the first signaling to read its content and / or perform preparations for adjusting the synchronization signal. In the embodiments of this application, this period can be referred to as the first delay. This first delay can be, for example, the shortest time required to process the first signaling, and in this case, it can also be called the minimum delay. As a specific example, see Figure 6, which is an example diagram of adjusting the transmission period of the synchronization signal based on DCI provided in another embodiment of this application. In the example shown in Figure 6, at time t0, the terminal device receives a DCI indicating that the transmission period of the SSB should be adjusted to 20ms. The network device did not start transmitting SSB with a period of 20ms at time t0, but instead started transmitting SSB with a period of 20ms at time t1, after the minimum delay from time t0.

[0091] In other cases, the effective time of the first transmission period can be related to the reception time of the first signaling, the first delay, and the first time domain position. For example, the effective time of the first transmission period can be the first first time domain position after the reception time of the first signaling has elapsed the first delay. Referring again to Figure 6, at time t0, the terminal device receives a DCI indicating that the transmission period of the SSB should be adjusted to 20ms. Time t0 after the minimum delay is time t1, and the first first time domain position after time t1 corresponds to time t2. The network device starts transmitting the SSB with a period of 20ms from time t2.

[0092] The effective time of the first transmission cycle has been described above. The first transmission cycle can be effective from this effective time and continue indefinitely without duration restrictions. Alternatively, the first transmission cycle can be effective from this effective time and remain effective for a period of time. The duration of this period can be referred to as the duration of the first transmission cycle, the effective duration of the first transmission cycle, or the adjusted duration.

[0093] In some embodiments, the duration of the first transmission cycle may be indicated based on third information sent by the network device.

[0094] In some cases, third information can be carried within system information. For example, system information can contain a third message, which can indicate the duration of the second time interval mentioned earlier, and the duration of the first transmission period can be the duration of the second time interval. As a concrete example, still referring to Figure 4, the network device can configure the duration of the second time interval (SSB period change interval) to 80ms in the system information. The terminal device receives a DCI indicating that the SSB transmission period should be adjusted to 20ms within the first SSB period change interval. The network device starts transmitting SSBs at a period of 20ms from the start time of the second SSB period change interval and continues to transmit SSBs at a period of 20ms within the second SSB period change interval. After the second SSB period change interval ends, the network device resumes transmitting SSBs at a period of 80ms.

[0095] When third-party information is carried within system information, changes to the value of the third-party information will not trigger adjustments or updates to the system information. For example, when a network device needs to change the duration of the first transmission cycle, the network device can change the value of the third-party information. Changes to the value of the third-party information are not considered adjustments or updates to the system information.

[0096] In other cases, this third information can be carried in a radio resource control (RRC) message. This RRC message can be, for example, a terminal device-specific RRC signaling. As a concrete example, referring to Figure 5, the terminal device can determine the effective time and duration of the first transmission cycle based on the terminal device-specific RRC signaling. As shown in Figure 5, before the effective time, the SSB transmits with a period of 80ms. During the adjustment duration starting from the effective time, the SSB transmits with a period of 20ms. After the adjustment duration ends, the SSB transmission cycle returns to 80ms.

[0097] In other cases, the third information can be carried within the first signaling message. The situation where the third information is carried within the first signaling message is similar to the situation where the third information is carried within system information and / or RRC messages, and will not be elaborated further here.

[0098] In other embodiments, the duration of the first transmission period may be related to the reception time of the second signaling and / or the second delay.

[0099] The second signaling here can be understood as the next signaling sent by the network device after the first signaling to adjust the transmission period of the synchronization signal. The second delay here can be related to the processing time of the second signaling. That is, the network device can send a second signaling after sending the first signaling. This second signaling can be used to adjust the transmission period of the synchronization signal.

[0100] In some cases, the duration of the first transmission period can be related to the reception time of the second signaling. For example, the end time of the first transmission period can be later than the reception time of the second signaling by a preset time period. That is, after the terminal device receives the second signaling, the network device does not immediately adjust the transmission period of the synchronization signal, but continues to transmit the synchronization signal in the first transmission period from the time the terminal device receives the second signaling. In this case, the duration of the first transmission period is the sum of the time interval between the reception time of the first signaling and the reception time of the second signaling and the preset time period.

[0101] In other cases, the duration of the first transmission period can be related to the reception time of the second signaling and the second delay, where the second delay can be related to the processing time of the second signaling. That is, after the terminal device receives the second signaling, the network device does not immediately adjust the transmission period of the synchronization signal; instead, it begins adjusting the transmission period of the synchronization signal only after the second delay has elapsed since the terminal device received the second signaling. After receiving the second signaling, the terminal device needs a period of time to process it, to read its content and / or perform preparations for synchronization signal adjustment. In this embodiment, this period can be referred to as the second delay. This second delay can be, for example, the shortest time required to process the second signaling, and can also be called the minimum delay. In this case, the duration of the first transmission period is the sum of the time interval between the effective time of the first transmission period and the reception time of the second signaling, and the second delay. As a specific example, see Figure 7, which is an example diagram of adjusting the transmission period of the synchronization signal based on DCI provided in another embodiment of this application. In the example shown in Figure 7, the terminal device receives a DCI at time t0 instructing it to adjust the SSB transmission period to 20ms, and begins transmitting SSBs with a period of 20ms at time t1. Then, at time t2, the terminal device receives a DCI instructing it to adjust the SSB transmission period to 80ms. However, the terminal device does not begin adjusting the SSB transmission period to 80ms at time t2; instead, it begins transmitting SSBs with a period of 80ms at time t3, after the minimum delay from time t2.

[0102] The above describes the effective time and duration of the first transmission cycle in implementation method two. In implementation method two, the communication method provided by this application may further include: the terminal device receiving the fourth information sent by the network device.

[0103] The fourth information here can be used to configure multiple transmission cycles of the synchronization signal. The first signaling mentioned in Implementation Method 2 can be used to indicate the first transmission cycle from among these multiple transmission cycles. That is, the first transmission cycle indicated by the first signaling can belong to multiple transmission cycles configured by the fourth information. The fourth information here can be carried in system information. When the fourth information is carried in system information, changes in the value of the fourth information will not trigger adjustments or updates to the system information. Alternatively, the fourth information here can also be carried in an RRC message. As a specific example, see Figure 4 again. In the example shown in Figure 4, the network device configures two transmission cycles in the system information or RRC message, where transmission cycle 1 is 20ms and transmission cycle 2 is 80ms. The network device can select one of these two transmission cycles as the first transmission cycle as needed and inform the terminal device of its selected transmission cycle through DCI.

[0104] The fourth information mentioned above can be used not only to configure multiple transmission cycles of the synchronization signal, but also to configure the default cycle and / or default index of the synchronization signal. In this way, when the terminal device receives the first signaling, it can determine the first transmission cycle based on the first signaling. If the terminal device does not receive the first signaling, it can use the default cycle and / or default index indicated by the fourth information. As a concrete example, still referring to Figure 4, the network device configures two SSB cycles (20ms and 80ms) through system information. Furthermore, the network device also configures the default SSB cycle to be 80ms through system information. Therefore, before the UE receives the DCI, the UE will assume that the SSB is transmitting with the default cycle of 80ms. The default cycle can only be applied within the current SSB cycle change interval. Within the current SSB cycle change interval, the UE receives the configuration of the default SSB cycle.

[0105] As mentioned in step S210, the first information can be used to indicate or adjust the index of the synchronization signal. In some implementations, the network device can also indicate or adjust the index of the synchronization signal through the fifth information. That is, the network device can also send the fifth information to the terminal device, which can be used to indicate or adjust the index of the synchronization signal. This fifth information can be carried in system information, RRC messages, or the first signaling. For details regarding the index of the synchronization signal, please refer to the relevant descriptions above, which will not be repeated here.

[0106] Step S210 states that the first information can be used to instruct the transmission period of the synchronization signal to be adjusted to the first transmission period. It can be assumed that the transmission period of the synchronization signal before adjustment was the second transmission period. That is, the first information can be used to instruct the transmission period of the synchronization signal to be adjusted from the second transmission period to the first transmission period. The center frequency of the synchronization signal corresponding to the first transmission period can be the same as the center frequency of the synchronization signal corresponding to the second transmission period. Alternatively, the center frequency of the synchronization signal corresponding to the first transmission period can be different from the center frequency of the synchronization signal corresponding to the second transmission period. "The center frequency of the synchronization signal corresponding to the first transmission period is different from the center frequency of the synchronization signal corresponding to the second transmission period" can be understood as the synchronization signal corresponding to the first transmission period being different from the synchronization signal corresponding to the second transmission period. For example, an SSB transmitted with a period of 20 milliseconds and an SSB transmitted with a period of 80 milliseconds are different SSBs. That is, the center frequencies of the SSB transmitted with a period of 20 milliseconds and the SSB transmitted with a period of 80 milliseconds are different.

[0107] When the center frequency of the synchronization signal corresponding to the first transmission cycle is different from that of the synchronization signal corresponding to the second transmission cycle, the center frequencies of the synchronization signals corresponding to the first and second transmission cycles can be located in the same bandwidth of the terminal device. Alternatively, the center frequencies of the synchronization signals corresponding to the first and second transmission cycles can also be located in different bandwidths of the terminal device. Here, the bandwidth can be, for example, a bandwidth part (BWP) or a carrier. For example, an SSB transmitted with a period of 20 milliseconds and an SSB transmitted with a period of 80 milliseconds can both be in the same active BWP of the UE. As another example, an SSB transmitted with a period of 20 milliseconds and an SSB transmitted with a period of 80 milliseconds can be on different BWPs or different carriers.

[0108] If the center frequency of the synchronization signal corresponding to the first transmission cycle differs from that of the synchronization signal corresponding to the second transmission cycle, the network device can adjust the period of the synchronization signal and either continue sending the synchronization signal corresponding to the second transmission cycle or stop sending it. For example, when the network device adjusts the transmission period of the SSB from 80ms to 20ms, it can stop sending SSBs with an 80ms transmission period. Conversely, when the network device adjusts the transmission period of the SSB from 80ms to 20ms, it can continue sending SSBs with an 80ms transmission period.

[0109] In the case where the first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, the communication method provided in this application embodiment may further include: the terminal device receiving a sixth piece of information sent by the network device, the sixth piece of information being used to indicate whether the network device sends a synchronization signal corresponding to the first transmission period. That is, even if the network device indicates through the first information to adjust the transmission period of the synchronization signal from the second transmission period to the first transmission period, the network device may not necessarily send a synchronization signal corresponding to the first transmission period. The network device may further indicate whether to send a synchronization signal corresponding to the first transmission period through the sixth information. The sixth information here may be carried in system information, first signaling, or DCI. For example, when the network device adjusts the transmission period of the SSB from 80ms to 20ms, the network device continues to send an SSB with a transmission period of 80ms and indicates through the system information whether to send an SSB with a transmission period of 20ms. If the system information indicates to send an SSB with a transmission period of 20ms, then the network device simultaneously sends an SSB with a transmission period of 80ms and an SSB with a transmission period of 20ms. If the system information indicates that an SSB with a transmission period of 20ms should not be sent, the network device will only send an SSB with a transmission period of 80ms and will not send an SSB with a transmission period of 20ms.

[0110] In some implementations, the first time-domain position corresponding to the first transmission cycle can have a correspondence with the second time-domain position corresponding to the second transmission cycle. The first time-domain position can be associated with one or more of the following: the first transmission cycle, the index of the synchronization signal corresponding to the first transmission cycle, and the half-frame index. Similarly, the second time-domain position can be associated with one or more of the following: the second transmission cycle, the index of the synchronization signal corresponding to the second transmission cycle, and the half-frame index. In some cases, the first time-domain position can also be referred to as a candidate position or candidate time-domain position of the synchronization signal corresponding to the first transmission cycle. Likewise, the second time-domain position can also be referred to as a candidate position or candidate time-domain position of the synchronization signal corresponding to the second transmission cycle.

[0111] There can be various correspondences between the first time-domain position and the second time-domain position. In some embodiments, the first time-domain position can be a subset of the second time-domain position. In other embodiments, the second time-domain position can be a subset of the first time-domain position. As shown in Figure 6, the small squares in the first row corresponding to the 80ms SSB represent the time-domain positions corresponding to the 80ms transmission period, and the small squares in the second row corresponding to the 20ms SSB represent the time-domain positions corresponding to the 20ms transmission period. As can be seen from Figure 6, the time-domain positions corresponding to the 80ms transmission period are a subset of the time-domain positions corresponding to the 20ms transmission period.

[0112] In some cases, a terminal device may receive downlink transmissions from a network device in addition to receiving synchronization signals. These downlink transmissions may include one or more of the following: downlink data transmission and downlink reference signal transmission. Resources used for downlink transmission (i.e., downlink transmission resources) may overlap with candidate resources for synchronization signals. In this case, the terminal device can determine whether to perform rate matching on the overlapping portion using first information. This rate matching can also be called downlink transmission reception rate matching. That is, the first information can also be used by the terminal device to determine whether to perform rate matching on the overlapping portion. In this embodiment, the overlapping portion of the downlink transmission resources and candidate resources for synchronization signals can be referred to as the first transmission resource. That is, the first transmission resource belongs to both downlink transmission resources and candidate resources for synchronization signals. Or, the first transmission resource simultaneously belongs to both downlink transmission resources and candidate resources for synchronization signals. For example, when the terminal device determines, based on the first information, that there is downlink data transmission within the candidate resources of the SSB, the terminal device needs to perform downlink transmission reception rate matching on the overlapping portion of the candidate resources of the SSB and the resources transmitting downlink data.

[0113] To facilitate understanding of the communication method provided in this application, a more detailed description of the communication method provided in this application will be given below with more specific examples.

[0114] Example 1

[0115] In Embodiment 1, the first information is carried in a synchronization signal. The UE receives a synchronization signal sent by the network device, which contains first information about the periodicity of the synchronization signal. This synchronization signal may be, for example, an SSB. The first information may be, for example, a MIB or PBCH payload. The first information may be indicated by one or more bits. The first information may indicate the transmission period of the synchronization signal. The UE can learn from the first information that the synchronization signal is transmitted within a time interval (hereinafter referred to as the first time interval for ease of description) at the indicated period. This also means that the indication of the first information will not change within the first time interval. The first time interval may be an integer millisecond. The first time interval may be predefined. The first time interval may be a periodic time interval. As shown in Figure 3, the first time interval is 80 ms. Within the first 80 ms time interval, the transmitted SSB contains the first information, which indicates that the transmission period of the SSB is 20 ms. When the UE receives the SSB and the corresponding first information, the UE knows that the SSB is transmitted within the current 80 ms time interval at a period of 20 ms. Within the second and third 80 ms time intervals, the network device decides to adjust the transmission period of the SSB. The network device can modify the first message to indicate an 80ms transmission period. When the UE receives the first message within the second or third 80ms time interval, the UE knows that the SSB is being transmitted with an 80ms period. Within the fourth 80ms time interval, the network device decides to adjust the SSB transmission period again. The network device can then modify the first message again to indicate a 40ms transmission period. When the UE receives the first message within the fourth 80ms time interval, the UE knows that the SSB is being transmitted with a 40ms period.

[0116] Example 2

[0117] In Example 2, the first information is carried in the DCI. For camped or connected UEs, adjusting the synchronization signal transmission via the DCI is more convenient. This DCI can be, for example, a group of common DCIs, where different UEs corresponding to this group of common DCIs can share the same RNTI. The network device can configure multiple synchronization signal periods in system information and / or UE-specific RRC signaling, for example, period 1 = 20ms, period 2 = 80ms. Then, the network device can use the DCI to adjust the period between 20ms and 80ms. As shown in Figure 4, the SSB is transmitting with an 80ms period. When the UE receives a DCI indicating that the period will change to 20ms, the SSB period will change from the start time of the next SSB period change interval, and the SSB period will remain unchanged within the current SSB period change interval. If the UE does not receive another DCI indicating a different SSB period, it is assumed that the SSB period remains unchanged. The SSB period change interval can be an integer millisecond. The SSB period change interval can be related to the configured maximum SSB period. In the example shown in Figure 4, the maximum SSB period is configured to be 80 ms. Alternatively, the SSB period change interval can be related to the maximum SSB period supported by the 3GPP system. For example, the maximum SSB period supported by the 3GPP system is 160 ms or 320 ms. The SSB period change interval can be related to the search space period used for DCI monitoring. The time-domain and frequency-domain resources used for DCI monitoring, as well as the RNTI value, can be configured through system information and / or UE-specific RRC signaling.

[0118] Example 3

[0119] In Example 3, the first information is carried in the DCI. In Example 3, the network device configures multiple SSB periods in the system information and / or UE-specific RRC signaling, as well as a default SSB period and / or a default SSB index. When the UE does not receive the DCI, it uses this default SSB period and / or default SSB index. Therefore, the UE will assume that the SSB is being transmitted with the default period and / or default SSB index. Referring again to Figure 4, two SSB periods (20ms and 80ms) are configured in the system information and / or UE-specific RRC signaling. Furthermore, a default period of 80ms is configured. Therefore, before the UE receives the DCI, the UE will assume that the SSB is being transmitted with the default period of 80ms. The default period can only be applied within the current SSB period change interval. Within the current SSB period change interval, the UE receives the configuration of the default SSB period. The case of the default SSB index is similar to that of the default SSB period and will not be repeated here.

[0120] Example 4

[0121] In Example 4, the first information is carried in the DCI. When the UE receives the DCI indicating an adjustment to the SSB period and / or SSB index, the adjustment will be applied for the duration of the adjustment. The start position of the adjustment duration can be explicitly indicated by the DCI. The duration of the adjustment duration can be explicitly configured by system information and / or UE-specific RRC signaling. Alternatively, the duration of the adjustment duration can be indicated by the DCI. As shown in Figure 5, the UE determines the start position of the SSB period and the adjustment duration based on the DCI, and determines the duration of the adjustment duration based on the system information. As can be seen from Figure 5, before the adjustment, the SSB is transmitted with a period of 80ms; after the adjustment, the SSB is transmitted with a period of 20ms during the adjustment duration. When the adjustment duration ends, the SSB transmission period returns to 80ms.

[0122] Example 5

[0123] In Embodiment 5, the first information is carried in the DCI. Embodiment 5 differs from Embodiment 4 in that the starting position of the adjustment duration in Embodiment 5 is related to the position of the received DCI. For example, it is required that the starting position of the adjusted SSB should satisfy a minimum delay at least after the position of the received DCI. The UE needs this minimum delay to process the DCI, read its contents, and perform the necessary preparations for SSB adjustment, as shown in Figure 6. In some cases, as shown in Figure 7, the transmission of the adjusted SSB is not limited by the adjustment duration.

[0124] Example 6

[0125] In Examples 1 to 5, in some cases, SSBs transmitted with an 80ms period and SSBs transmitted with a 20ms period can be located at the same frequency. In this case, the SSB corresponding to a certain transmission period can always be transmitted, for example, the SSB corresponding to the 80ms transmission period. The transmission of the SSB corresponding to the other transmission period can be controlled to be turned on or off by DCI, system information, or UE-specific RRC signaling. For example, the transmission of the SSB corresponding to the 20ms transmission period can be turned on or off by DCI, system information, or UE-specific RRC signaling.

[0126] The method embodiments of this application have been described in detail above with specific examples. The apparatus embodiments of this application are described in detail below with reference to Figures 8 to 10. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be referred to the preceding method embodiments.

[0127] Figure 8 is a schematic diagram of the structure of a communication device 800 provided in an embodiment of this application. The communication device 800 shown in Figure 8 is a terminal device. The communication device 800 includes a first receiving unit 810. The first receiving unit 810 is used to receive first information sent by a network device, wherein the first information is used to indicate that the transmission period of the synchronization signal is or is adjusted to a first transmission period, and / or the first information is used to indicate that the index of the synchronization signal is or is adjusted to a first index.

[0128] In some implementations, the transmission period of the synchronization signal is the transmission period of one synchronization signal or the transmission period of a set of synchronization signals.

[0129] In some implementations, the first information is carried in the synchronization signal.

[0130] In some implementations, the synchronization signal is an SSB, and the first information is carried in the MIB and / or PBCH.

[0131] In some implementations, the first transmission period indicated by the first information is the transmission period of the synchronization signal within a first time interval, wherein the first time interval satisfies one or more of the following: the first time interval is determined based on predefined information and / or the configuration information of the network device; the duration of the first time interval is an integer millisecond; and the first time interval is a periodic time interval.

[0132] In some implementations, the first time interval is a periodic continuous time interval, and the first transmission period indicated by the first information is the transmission period of the synchronization signal within the following time intervals: the current first time interval; or, the next first time interval of the current first time interval; wherein the terminal device receives the first information within the current first time interval.

[0133] In some implementations, the first transmission period indicated by the first information is the transmission period of the synchronization signal within a plurality of first time intervals.

[0134] In some implementations, the first information is carried in a first signaling message for the terminal device.

[0135] In some implementations, the first signaling is carried in MAC CE or DCI.

[0136] In some implementations, the first signaling is a group common DCI.

[0137] In some implementations, the effective time of the first transmission period is related to a second time interval, which is a periodic time interval, and the transmission period of the synchronization signal remains unchanged within a second time interval.

[0138] In some implementations, the effective time of the first transmission period is related to the start time of the next second time interval after the second time interval in which the first signaling is received.

[0139] In some implementations, the second time interval satisfies one or more of the following: the second time interval is related to the maximum transmission period of the synchronization signal configured for the terminal device; the second time interval is related to the maximum transmission period of the synchronization signal supported by the network device; the second time interval is related to the monitoring period of the first signaling; the second time interval is related to the update period of the system messages configured for the terminal device; and the duration of the second time interval is an integer millisecond.

[0140] In some implementations, the first signaling is DCI, and the monitoring period of the first signaling is the period used to monitor the time and frequency resources of the DCI.

[0141] In some implementations, the first signaling includes second information, which indicates the effective time of the first transmission period.

[0142] In some implementations, the second information is used to indicate a first time offset; and / or the second information is used to indicate one or more of the following: SFN index; slot index; half-frame index.

[0143] In some implementations, the effective time of the first transmission period is related to one or more of the following: the reception time of the first signaling; the first delay; the first time domain position; wherein the first delay is related to the processing time of the first signaling; wherein the first time domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal, and the half-frame index.

[0144] In some implementations, the duration of the first transmission period is based on a third information indication sent by the network device.

[0145] In some implementations, the third information is carried in system information, RRC messages, or first signaling.

[0146] In some implementations, the third information is carried within system information, and changes in the value of the third information do not trigger adjustments or updates to the system information.

[0147] In some implementations, the duration of the first transmission period is related to the reception time of the second signaling and / or the second delay; wherein the second signaling is the next signaling sent by the network device after the first signaling to adjust the transmission period of the synchronization signal, and the second delay is related to the processing time of the second signaling.

[0148] In some implementations, the device further includes: a second receiving unit, configured to receive fourth information sent by the network device, the fourth information being configured to configure multiple transmission cycles of the synchronization signal, and the first signaling being configured to indicate the first transmission cycle from among the multiple transmission cycles.

[0149] In some implementations, the fourth information is carried in system information or RRC messages.

[0150] In some implementations, the fourth information is carried within system information, and changes in the value of the fourth information do not trigger adjustments or updates to the system information.

[0151] In some implementations, the fourth information is also used to configure the default period and / or default index of the synchronization signal.

[0152] In some implementations, the device further includes a third receiving unit for receiving fifth information sent by the network device, the fifth information being used to indicate or adjust the index of the synchronization signal.

[0153] In some implementations, the first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, wherein the center frequency of the synchronization signal corresponding to the first transmission period is different from the center frequency of the synchronization signal corresponding to the second transmission period.

[0154] In some implementations, the center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in the same bandwidth of the terminal device; or, the center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in different bandwidths of the terminal device.

[0155] In some implementations, the first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period. The device further includes: a fourth receiving unit, used to receive sixth information sent by the network device, the sixth information being used to indicate whether the network device sends the synchronization signal corresponding to the first transmission period.

[0156] In some implementations, the first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and there is a correspondence between the first time domain position corresponding to the first transmission period and the second time domain position corresponding to the second transmission period; wherein, the first time domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal corresponding to the first transmission period, and the half-frame index; wherein, the second time domain position is related to one or more of the following: the second transmission period, the index of the synchronization signal corresponding to the second transmission period, and the half-frame index.

[0157] In some implementations, the first time-domain position is a subset of the second time-domain position; or, the second time-domain position is a subset of the first time-domain position.

[0158] In some implementations, the first information is further used by the terminal device to determine whether to perform rate matching for a first transmission resource, which is simultaneously a candidate resource for both downlink transmission resources and the synchronization signal.

[0159] In some implementations, the synchronization signal is SSB.

[0160] Figure 9 is a schematic diagram of the structure of a communication device 900 provided in an embodiment of this application. The communication device 900 shown in Figure 9 is an access network device. The communication device 900 includes a first transmitting unit 910. The first transmitting unit 910 is used to transmit first information to a terminal device, wherein the first information is used to indicate that the transmission period of the synchronization signal is or is adjusted to a first transmission period, and / or the first information is used to indicate that the index of the synchronization signal is or is adjusted to a first index.

[0161] In some implementations, the transmission period of the synchronization signal is the transmission period of one synchronization signal or the transmission period of a set of synchronization signals.

[0162] In some implementations, the first information is carried in the synchronization signal.

[0163] In some implementations, the synchronization signal is an SSB, and the first information is carried in the MIB and / or PBCH.

[0164] In some implementations, the first transmission period indicated by the first information is the transmission period of the synchronization signal within a first time interval, wherein the first time interval satisfies one or more of the following: the first time interval is determined based on predefined information and / or the configuration information of the network device; the duration of the first time interval is an integer millisecond; and the first time interval is a periodic time interval.

[0165] In some implementations, the first time interval is a periodic continuous time interval, and the first transmission period indicated by the first information is the transmission period of the synchronization signal within the following time intervals: the current first time interval; or, the next first time interval of the current first time interval; wherein the terminal device receives the first information within the current first time interval.

[0166] In some implementations, the first transmission period indicated by the first information is the transmission period of the synchronization signal within a plurality of first time intervals.

[0167] In some implementations, the first information is carried in a first signaling message for the terminal device.

[0168] In some implementations, the first signaling is carried in MAC CE or DCI.

[0169] In some implementations, the first signaling is a group common DCI.

[0170] In some implementations, the effective time of the first transmission period is related to a second time interval, which is a periodic time interval, and the transmission period of the synchronization signal remains unchanged within a second time interval.

[0171] In some implementations, the effective time of the first transmission period is related to the start time of the next second time interval after the second time interval in which the first signaling is received.

[0172] In some implementations, the second time interval satisfies one or more of the following: the second time interval is related to the maximum transmission period of the synchronization signal configured for the terminal device; the second time interval is related to the maximum transmission period of the synchronization signal supported by the network device; the second time interval is related to the monitoring period of the first signaling; the second time interval is related to the update period of the system messages configured for the terminal device; and the duration of the second time interval is an integer millisecond.

[0173] In some implementations, the first signaling is DCI, and the monitoring period of the first signaling is the period used to monitor the time and frequency resources of the DCI.

[0174] In some implementations, the first signaling includes second information, which indicates the effective time of the first transmission period.

[0175] In some implementations, the second information is used to indicate a first time offset; and / or the second information is used to indicate one or more of the following: SFN index; slot index; half-frame index.

[0176] In some implementations, the effective time of the first transmission period is related to one or more of the following: the reception time of the first signaling; the first delay; the first time domain position; wherein the first delay is related to the processing time of the first signaling; wherein the first time domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal, and the half-frame index.

[0177] In some implementations, the duration of the first transmission period is based on a third information indication sent by the network device.

[0178] In some implementations, the third information is carried in system information, RRC messages, or first signaling.

[0179] In some implementations, the third information is carried within system information, and changes in the value of the third information do not trigger adjustments or updates to the system information.

[0180] In some implementations, the duration of the first transmission period is related to the reception time of the second signaling and / or the second delay; wherein the second signaling is the next signaling sent by the network device after the first signaling to adjust the transmission period of the synchronization signal, and the second delay is related to the processing time of the second signaling.

[0181] In some implementations, the device further includes: a second transmitting unit, configured to transmit fourth information to the terminal device, the fourth information being configured to configure multiple transmission cycles of the synchronization signal, and the first signaling being configured to indicate the first transmission cycle from among the multiple transmission cycles.

[0182] In some implementations, the fourth information is carried in system information or RRC messages.

[0183] In some implementations, the fourth information is carried within system information, and changes in the value of the fourth information do not trigger adjustments or updates to the system information.

[0184] In some implementations, the fourth information is also used to configure the default period and / or default index of the synchronization signal.

[0185] In some implementations, the device further includes a third transmitting unit for transmitting fifth information to the terminal device, the fifth information being used to indicate or adjust the index of the synchronization signal.

[0186] In some implementations, the first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, wherein the center frequency of the synchronization signal corresponding to the first transmission period is different from the center frequency of the synchronization signal corresponding to the second transmission period.

[0187] In some implementations, the device further includes: a fourth transmitting unit, configured to continue transmitting the synchronization signal corresponding to the second transmission cycle; or, to stop transmitting the synchronization signal corresponding to the second transmission cycle.

[0188] In some implementations, the center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in the same bandwidth of the terminal device; or, the center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in different bandwidths of the terminal device.

[0189] In some implementations, the first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period. The device further includes a fifth transmitting unit, used to send sixth information to the terminal device, the sixth information being used to indicate whether the network device sends the synchronization signal corresponding to the first transmission period.

[0190] In some implementations, the first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and there is a correspondence between the first time domain position corresponding to the first transmission period and the second time domain position corresponding to the second transmission period; wherein, the first time domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal corresponding to the first transmission period, and the half-frame index; wherein, the second time domain position is related to one or more of the following: the second transmission period, the index of the synchronization signal corresponding to the second transmission period, and the half-frame index.

[0191] In some implementations, the first time-domain position is a subset of the second time-domain position; or, the second time-domain position is a subset of the first time-domain position.

[0192] In some implementations, the first information is further used by the terminal device to determine whether to perform rate matching for a first transmission resource, which is simultaneously a candidate resource for both downlink transmission resources and the synchronization signal.

[0193] In some implementations, the synchronization signal is SSB.

[0194] Figure 10 is a schematic diagram of the structure of a communication device applicable to embodiments of this application. The dashed lines in Figure 10 indicate that the unit or module is optional. This device 1000 can be used to implement the methods described in the above method embodiments. The device 1000 can be a chip, a terminal device, or a network device.

[0195] Apparatus 1000 may include one or more processors 1010. The processor 1010 may support apparatus 1000 in implementing the methods described in the preceding method embodiments. The processor 1010 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0196] The apparatus 1000 may further include one or more memories 1020. The memories 1020 store a program that can be executed by the processor 1010, causing the processor 1010 to perform the methods described in the preceding method embodiments. The memories 1020 may be independent of the processor 1010 or integrated within the processor 1010.

[0197] The device 1000 may also include a transceiver 1030. The processor 1010 can communicate with other devices or chips via the transceiver 1030. For example, the processor 1010 can send and receive data with other devices or chips via the transceiver 1030.

[0198] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to the communication device provided in this application, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0199] This application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the communication device provided in this application embodiment, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0200] This application also provides a computer program. This computer program can be applied to the communication device provided in this application, and causes the computer to execute the methods performed by the communication device in various embodiments of this application.

[0201] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0202] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0203] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0204] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0205] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0206] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0207] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0208] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0209] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0210] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0211] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0212] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0213] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: The terminal device receives first information sent by the network device, wherein the first information is used to indicate that the transmission period of the synchronization signal is or is adjusted to a first transmission period, and / or the first information is used to indicate that the index of the synchronization signal is or is adjusted to a first index.

2. The method according to claim 1, characterized in that, The transmission period of the synchronization signal is either the transmission period of a single synchronization signal or the transmission period of a set of synchronization signals.

3. The method according to claim 1 or 2, characterized in that, The first information is carried in the synchronization signal.

4. The method according to claim 3, characterized in that, The synchronization signal is a synchronization signal block SSB, and the first information is carried in the main information block MIB and / or the physical broadcast channel PBCH.

5. The method according to claim 3, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a first time interval, wherein the first time interval satisfies one or more of the following: The first time interval is determined based on predefined information and / or the configuration information of the network device; The duration of the first time interval is an integer number of milliseconds; The first time interval is a periodic time interval.

6. The method according to claim 5, characterized in that, The first time interval is a periodic continuous time interval, and the first transmission period indicated by the first information is the transmission period of the synchronization signal within the following time intervals: The current first time interval; or, The next first time interval after the current first time interval; The terminal device receives the first information within the current first time interval.

7. The method according to claim 5, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a plurality of first time intervals.

8. The method according to claim 1 or 2, characterized in that, The first information is carried in the first signaling for the terminal device.

9. The method according to claim 8, characterized in that, The first signaling is carried in the Media Access Control (MAC) control element (CE) or the Downlink Control Information (DCI).

10. The method according to claim 9, characterized in that, The first signaling is a group common DCI.

11. The method according to any one of claims 8 to 10, characterized in that, The effective time of the first transmission cycle is related to the second time interval, which is a periodic time interval, and the transmission cycle of the synchronization signal remains unchanged within one second time interval.

12. The method according to claim 11, characterized in that, The effective time of the first transmission cycle is related to the start time of the next second time interval after the second time interval in which the first signaling is received.

13. The method according to claim 11 or 12, characterized in that, The second time interval satisfies one or more of the following: The second time interval is related to the maximum transmission period of the synchronization signal configured for the terminal device; The second time interval is related to the maximum transmission period of the synchronization signal supported by the network device; The second time interval is related to the monitoring period of the first signaling; The second time interval is related to the update cycle of the system messages configured for the terminal device; The duration of the second time interval is an integer number of milliseconds.

14. The method according to claim 13, characterized in that, The first signaling is DCI, and the monitoring period of the first signaling is the period used to monitor the time and frequency resources of the DCI.

15. The method according to any one of claims 8 to 10, characterized in that, The first signaling includes second information, which indicates the effective time of the first transmission period.

16. The method according to claim 15, characterized in that: The second information is used to indicate the first time offset; and / or The second information is used to indicate one or more of the following: System Frame Number (SFN) index; Time Slot Index; Half-Frame Index.

17. The method according to any one of claims 8 to 10, characterized in that, The effective time of the first transmission period is related to one or more of the following: the reception time of the first signaling; the first delay; the first time domain location; Wherein, the first delay is related to the processing time of the first signaling; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal, and the half-frame index.

18. The method according to any one of claims 8 to 10, 15 to 17, characterized in that, The duration of the first transmission cycle is based on the third information indication sent by the network device.

19. The method according to claim 18, characterized in that, The third information is carried in system information, RRC messages, or the first signaling.

20. The method according to claim 19, wherein the third information is carried in system information, and a change in the value of the third information does not trigger an adjustment or update of the system information.

21. The method according to any one of claims 8 to 10, 15 to 17, characterized in that, The duration of the first transmission period is related to the reception time of the second signaling and / or the second delay; The second signaling is a next signaling sent by the network device after the first signaling to adjust the transmission period of the synchronization signal, and the second delay is related to the processing time of the second signaling.

22. The method according to any one of claims 8 to 21, characterized in that, The method further includes: The terminal device receives fourth information sent by the network device, the fourth information being used to configure multiple transmission cycles of the synchronization signal, and the first signaling being used to indicate the first transmission cycle from the multiple transmission cycles.

23. The method according to claim 22, characterized in that, The fourth piece of information is carried in system information or RRC messages.

24. The method according to claim 23, characterized in that, The fourth piece of information is carried within the system information, and changes in the value of the fourth piece of information do not trigger adjustments or updates to the system information.

25. The method according to any one of claims 22 to 24, characterized in that, The fourth piece of information is also used to configure the default period and / or default index of the synchronization signal.

26. The method according to any one of claims 1 to 25, characterized in that, The method further includes: The terminal device receives the fifth information sent by the network device, the fifth information being used to indicate or adjust the index of the synchronization signal.

27. The method according to any one of claims 1 to 26, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the center frequency of the synchronization signal corresponding to the first transmission period is different from the center frequency of the synchronization signal corresponding to the second transmission period.

28. The method according to claim 27, characterized in that: The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in the same bandwidth of the terminal device; or... The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in different bandwidths of the terminal device.

29. The method according to any one of claims 1 to 28, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the method further includes: The terminal device receives the sixth information sent by the network device, the sixth information being used to indicate whether the network device sends the synchronization signal corresponding to the first transmission cycle.

30. The method according to any one of claims 1 to 29, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and there is a correspondence between the first time domain position corresponding to the first transmission period and the second time domain position corresponding to the second transmission period; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal corresponding to the first transmission period, and the half-frame index; The second time-domain position is related to one or more of the following: the second transmission period, the index of the synchronization signal corresponding to the second transmission period, and the half-frame index.

31. The method according to claim 30, characterized in that, The first time-domain position is a subset of the second time-domain position; or, the second time-domain position is a subset of the first time-domain position.

32. The method according to any one of claims 1 to 31, characterized in that, The first information is also used by the terminal device to determine whether to perform rate matching for the first transmission resource, which is simultaneously a candidate resource for both downlink transmission resources and the synchronization signal.

33. The method according to any one of claims 1 to 32, characterized in that, The synchronization signal is SSB.

34. A communication method, characterized in that, include: The network device sends first information to the terminal device, the first information being used to indicate that the transmission period of the synchronization signal is or is adjusted to a first transmission period, and / or the first information being used to indicate that the index of the synchronization signal is or is adjusted to a first index.

35. The method according to claim 34, characterized in that, The transmission period of the synchronization signal is either the transmission period of a single synchronization signal or the transmission period of a set of synchronization signals.

36. The method according to claim 34 or 35, characterized in that, The first information is carried in the synchronization signal.

37. The method according to claim 36, characterized in that, The synchronization signal is a synchronization signal block SSB, and the first information is carried in the main information block MIB and / or the physical broadcast channel PBCH.

38. The method according to claim 36, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a first time interval, wherein the first time interval satisfies one or more of the following: The first time interval is determined based on predefined information and / or the configuration information of the network device; The duration of the first time interval is an integer number of milliseconds; The first time interval is a periodic time interval.

39. The method according to claim 38, characterized in that, The first time interval is a periodic continuous time interval, and the first transmission period indicated by the first information is the transmission period of the synchronization signal within the following time intervals: The current first time interval; or, The next first time interval after the current first time interval; The terminal device receives the first information within the current first time interval.

40. The method according to claim 38, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a plurality of first time intervals.

41. The method according to claim 34 or 35, characterized in that, The first information is carried in the first signaling for the terminal device.

42. The method according to claim 41, characterized in that, The first signaling is carried in the Media Access Control (MAC) control element (CE) or the Downlink Control Information (DCI).

43. The method according to claim 42, characterized in that, The first signaling is a group common DCI.

44. The method according to any one of claims 41 to 43, characterized in that, The effective time of the first transmission cycle is related to the second time interval, which is a periodic time interval, and the transmission cycle of the synchronization signal remains unchanged within one second time interval.

45. The method according to claim 44, characterized in that, The effective time of the first transmission cycle is related to the start time of the next second time interval after the second time interval in which the first signaling is received.

46. ​​The method according to claim 44 or 45, characterized in that, The second time interval satisfies one or more of the following: The second time interval is related to the maximum transmission period of the synchronization signal configured for the terminal device; The second time interval is related to the maximum transmission period of the synchronization signal supported by the network device; The second time interval is related to the monitoring period of the first signaling; The second time interval is related to the update cycle of the system messages configured for the terminal device; The duration of the second time interval is an integer number of milliseconds.

47. The method according to claim 46, characterized in that, The first signaling is DCI, and the monitoring period of the first signaling is the period used to monitor the time and frequency resources of the DCI.

48. The method according to any one of claims 41 to 43, characterized in that, The first signaling includes second information, which indicates the effective time of the first transmission period.

49. The method according to claim 48, characterized in that: The second information is used to indicate the first time offset; and / or The second information is used to indicate one or more of the following: System Frame Number (SFN) index; Time Slot Index; Half-Frame Index.

50. The method according to any one of claims 41 to 43, characterized in that, The effective time of the first transmission period is related to one or more of the following: the reception time of the first signaling; the first delay; the first time domain location; Wherein, the first delay is related to the processing time of the first signaling; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal, and the half-frame index.

51. The method according to any one of claims 41 to 43, 48 to 50, characterized in that, The duration of the first transmission cycle is based on the third information indication sent by the network device.

52. The method according to claim 51, characterized in that, The third information is carried in system information, RRC messages, or the first signaling.

53. The method according to claim 52, wherein the third information is carried in system information, and a change in the value of the third information does not trigger an adjustment or update of the system information.

54. The method according to any one of claims 41 to 43, 48 to 50, characterized in that, The duration of the first transmission period is related to the reception time of the second signaling and / or the second delay; The second signaling is a next signaling sent by the network device after the first signaling to adjust the transmission period of the synchronization signal, and the second delay is related to the processing time of the second signaling.

55. The method according to any one of claims 41 to 54, characterized in that, The method further includes: The network device sends fourth information to the terminal device, the fourth information being used to configure multiple transmission cycles of the synchronization signal, and the first signaling being used to indicate the first transmission cycle from among the multiple transmission cycles.

56. The method according to claim 55, characterized in that, The fourth piece of information is carried in system information or RRC messages.

57. The method according to claim 56, characterized in that, The fourth piece of information is carried within the system information, and changes in the value of the fourth piece of information do not trigger adjustments or updates to the system information.

58. The method according to any one of claims 55 to 57, characterized in that, The fourth piece of information is also used to configure the default period and / or default index of the synchronization signal.

59. The method according to any one of claims 34 to 58, characterized in that, The method further includes: The network device sends a fifth message to the terminal device, the fifth message being used to indicate or adjust the index of the synchronization signal.

60. The method according to any one of claims 34 to 59, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the center frequency of the synchronization signal corresponding to the first transmission period is different from the center frequency of the synchronization signal corresponding to the second transmission period.

61. The method according to claim 60, characterized in that, The method further includes: The network device continues to send the synchronization signal corresponding to the second transmission cycle; or... The network device stops sending the synchronization signal corresponding to the second transmission cycle.

62. The method according to claim 60 or 61, characterized in that: The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in the same bandwidth of the terminal device; or... The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in different bandwidths of the terminal device.

63. The method according to any one of claims 34 to 62, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the method further includes: The network device sends a sixth message to the terminal device, the sixth message being used to indicate whether the network device should send the synchronization signal corresponding to the first transmission cycle.

64. The method according to any one of claims 34 to 63, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and there is a correspondence between the first time domain position corresponding to the first transmission period and the second time domain position corresponding to the second transmission period; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal corresponding to the first transmission period, and the half-frame index; The second time-domain position is related to one or more of the following: the second transmission period, the index of the synchronization signal corresponding to the second transmission period, and the half-frame index.

65. The method according to claim 64, characterized in that, The first time-domain position is a subset of the second time-domain position; or, the second time-domain position is a subset of the first time-domain position.

66. The method according to any one of claims 34 to 65, characterized in that, The first information is also used by the terminal device to determine whether to perform rate matching for the first transmission resource, which is simultaneously a candidate resource for both downlink transmission resources and the synchronization signal.

67. The method according to any one of claims 34 to 66, characterized in that, The synchronization signal is SSB.

68. A communication device, characterized in that, The communication device is a terminal device, and the communication device includes: The first receiving unit is configured to receive first information sent by the network device, wherein the first information is used to indicate that the transmission period of the synchronization signal is or is adjusted to a first transmission period, and / or the first information is used to indicate that the index of the synchronization signal is or is adjusted to a first index.

69. The device according to claim 68, characterized in that, The transmission period of the synchronization signal is either the transmission period of a single synchronization signal or the transmission period of a set of synchronization signals.

70. The device according to claim 68 or 69, characterized in that, The first information is carried in the synchronization signal.

71. The device according to claim 70, characterized in that, The synchronization signal is a synchronization signal block SSB, and the first information is carried in the main information block MIB and / or the physical broadcast channel PBCH.

72. The device according to claim 70, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a first time interval, wherein the first time interval satisfies one or more of the following: The first time interval is determined based on predefined information and / or the configuration information of the network device; The duration of the first time interval is an integer number of milliseconds; The first time interval is a periodic time interval.

73. The device according to claim 72, characterized in that, The first time interval is a periodic continuous time interval, and the first transmission period indicated by the first information is the transmission period of the synchronization signal within the following time intervals: The current first time interval; or, The next first time interval after the current first time interval; The terminal device receives the first information within the current first time interval.

74. The device according to claim 72, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a plurality of first time intervals.

75. The device according to claim 68 or 69, characterized in that, The first information is carried in the first signaling for the terminal device.

76. The device according to claim 75, characterized in that, The first signaling is carried in the Media Access Control (MAC) control element (CE) or the Downlink Control Information (DCI).

77. The device according to claim 76, characterized in that, The first signaling is a group common DCI.

78. The device according to any one of claims 75 to 77, characterized in that, The effective time of the first transmission cycle is related to the second time interval, which is a periodic time interval, and the transmission cycle of the synchronization signal remains unchanged within one second time interval.

79. The device according to claim 78, characterized in that, The effective time of the first transmission cycle is related to the start time of the next second time interval after the second time interval in which the first signaling is received.

80. The device according to claim 78 or 79, characterized in that, The second time interval satisfies one or more of the following: The second time interval is related to the maximum transmission period of the synchronization signal configured for the terminal device; The second time interval is related to the maximum transmission period of the synchronization signal supported by the network device; The second time interval is related to the monitoring period of the first signaling; The second time interval is related to the update cycle of the system messages configured for the terminal device; The duration of the second time interval is an integer number of milliseconds.

81. The device according to claim 80, characterized in that, The first signaling is DCI, and the monitoring period of the first signaling is the period used to monitor the time and frequency resources of the DCI.

82. The device according to any one of claims 75 to 77, characterized in that, The first signaling includes second information, which indicates the effective time of the first transmission period.

83. The device according to claim 82, characterized in that: The second information is used to indicate the first time offset; and / or The second information is used to indicate one or more of the following: System Frame Number (SFN) index; Time Slot Index; Half-Frame Index.

84. The device according to any one of claims 75 to 77, characterized in that, The effective time of the first transmission period is related to one or more of the following: the reception time of the first signaling; the first delay; the first time domain location; Wherein, the first delay is related to the processing time of the first signaling; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal, and the half-frame index.

85. The device according to any one of claims 75 to 77, 82 to 84, characterized in that, The duration of the first transmission cycle is based on the third information indication sent by the network device.

86. The device according to claim 85, characterized in that, The third information is carried in system information, RRC messages, or the first signaling.

87. The device according to claim 86, wherein the third information is carried in system information, and a change in the value of the third information does not trigger an adjustment or update of the system information.

88. The device according to any one of claims 75 to 77, 82 to 84, characterized in that, The duration of the first transmission period is related to the reception time of the second signaling and / or the second delay; The second signaling is a next signaling sent by the network device after the first signaling to adjust the transmission period of the synchronization signal, and the second delay is related to the processing time of the second signaling.

89. The device according to any one of claims 75 to 88, characterized in that, The device also includes: The second receiving unit is configured to receive fourth information sent by the network device, the fourth information being used to configure multiple transmission cycles of the synchronization signal, and the first signaling being used to indicate the first transmission cycle from among the multiple transmission cycles.

90. The device according to claim 89, characterized in that, The fourth piece of information is carried in system information or RRC messages.

91. The device according to claim 90, characterized in that, The fourth piece of information is carried within the system information, and changes in the value of the fourth piece of information do not trigger adjustments or updates to the system information.

92. The device according to any one of claims 89 to 91, characterized in that, The fourth piece of information is also used to configure the default period and / or default index of the synchronization signal.

93. The device according to any one of claims 68 to 92, characterized in that, The device also includes: The third receiving unit is used to receive the fifth information sent by the network device, the fifth information being used to indicate or adjust the index of the synchronization signal.

94. The device according to any one of claims 68 to 93, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the center frequency of the synchronization signal corresponding to the first transmission period is different from the center frequency of the synchronization signal corresponding to the second transmission period.

95. The device according to claim 94, characterized in that: The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in the same bandwidth of the terminal device; or... The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in different bandwidths of the terminal device.

96. The device according to any one of claims 68 to 95, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the device further includes: The fourth receiving unit is used to receive the sixth information sent by the network device, the sixth information being used to indicate whether the network device sends the synchronization signal corresponding to the first transmission cycle.

97. The device according to any one of claims 68 to 96, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and there is a correspondence between the first time domain position corresponding to the first transmission period and the second time domain position corresponding to the second transmission period; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal corresponding to the first transmission period, and the half-frame index; The second time-domain position is related to one or more of the following: the second transmission period, the index of the synchronization signal corresponding to the second transmission period, and the half-frame index.

98. The device according to claim 97, characterized in that, The first time-domain position is a subset of the second time-domain position; or, the second time-domain position is a subset of the first time-domain position.

99. The device according to any one of claims 68 to 98, characterized in that, The first information is also used by the terminal device to determine whether to perform rate matching for the first transmission resource, which is simultaneously a candidate resource for both downlink transmission resources and the synchronization signal.

100. The device according to any one of claims 68 to 99, characterized in that, The synchronization signal is SSB.

101. A communication device, characterized in that, The communication device is a network device, and the communication device includes: The first transmitting unit is configured to transmit first information to the terminal device, wherein the first information is used to indicate that the transmission period of the synchronization signal is or is adjusted to a first transmission period, and / or the first information is used to indicate that the index of the synchronization signal is or is adjusted to a first index.

102. The device according to claim 101, characterized in that, The transmission period of the synchronization signal is either the transmission period of a single synchronization signal or the transmission period of a set of synchronization signals.

103. The device according to claim 101 or 102, characterized in that, The first information is carried in the synchronization signal.

104. The device according to claim 103, characterized in that, The synchronization signal is a synchronization signal block SSB, and the first information is carried in the main information block MIB and / or the physical broadcast channel PBCH.

105. The device according to claim 104, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a first time interval, wherein the first time interval satisfies one or more of the following: The first time interval is determined based on predefined information and / or the configuration information of the network device; The duration of the first time interval is an integer number of milliseconds; The first time interval is a periodic time interval.

106. The device according to claim 105, characterized in that, The first time interval is a periodic continuous time interval, and the first transmission period indicated by the first information is the transmission period of the synchronization signal within the following time intervals: The current first time interval; or, The next first time interval after the current first time interval; The terminal device receives the first information within the current first time interval.

107. The device according to claim 105, characterized in that, The first transmission period indicated by the first information is the transmission period of the synchronization signal within a plurality of first time intervals.

108. The device according to claim 101 or 102, characterized in that, The first information is carried in the first signaling for the terminal device.

109. The device according to claim 108, characterized in that, The first signaling is carried in the Media Access Control (MAC) control element (CE) or the Downlink Control Information (DCI).

110. The device according to claim 109, characterized in that, The first signaling is a group common DCI.

111. The device according to any one of claims 108 to 110, characterized in that, The effective time of the first transmission cycle is related to the second time interval, which is a periodic time interval, and the transmission cycle of the synchronization signal remains unchanged within one second time interval.

112. The device according to claim 111, characterized in that, The effective time of the first transmission cycle is related to the start time of the next second time interval after the second time interval in which the first signaling is received.

113. The device according to claim 111 or 112, characterized in that, The second time interval satisfies one or more of the following: The second time interval is related to the maximum transmission period of the synchronization signal configured for the terminal device; The second time interval is related to the maximum transmission period of the synchronization signal supported by the network device; The second time interval is related to the monitoring period of the first signaling; The second time interval is related to the update cycle of the system messages configured for the terminal device; The duration of the second time interval is an integer number of milliseconds.

114. The device according to claim 113, characterized in that, The first signaling is DCI, and the monitoring period of the first signaling is the period used to monitor the time and frequency resources of the DCI.

115. The device according to any one of claims 108 to 110, characterized in that, The first signaling includes second information, which indicates the effective time of the first transmission period.

116. The device according to claim 115, characterized in that: The second information is used to indicate the first time offset; and / or The second information is used to indicate one or more of the following: System Frame Number (SFN) index; Time Slot Index; Half-Frame Index.

117. The device according to any one of claims 108 to 110, characterized in that, The effective time of the first transmission period is related to one or more of the following: the reception time of the first signaling; the first delay; the first time domain location; Wherein, the first delay is related to the processing time of the first signaling; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal, and the half-frame index.

118. The device according to any one of claims 108 to 110, 115 to 117, characterized in that, The duration of the first transmission cycle is based on the third information indication sent by the network device.

119. The device according to claim 118, characterized in that, The third information is carried in system information, RRC messages, or the first signaling.

120. The device according to claim 119, wherein the third information is carried in system information, and a change in the value of the third information does not trigger an adjustment or update of the system information.

121. The device according to any one of claims 108 to 110, 115 to 117, characterized in that, The duration of the first transmission period is related to the reception time of the second signaling and / or the second delay; The second signaling is a next signaling sent by the network device after the first signaling to adjust the transmission period of the synchronization signal, and the second delay is related to the processing time of the second signaling.

122. The device according to any one of claims 108 to 121, characterized in that, The device also includes: The second sending unit is used to send fourth information to the terminal device, the fourth information being used to configure multiple transmission cycles of the synchronization signal, and the first signaling being used to indicate the first transmission cycle from the multiple transmission cycles.

123. The device according to claim 122, characterized in that, The fourth piece of information is carried in system information or RRC messages.

124. The device according to claim 123, characterized in that, The fourth piece of information is carried within the system information, and changes in the value of the fourth piece of information do not trigger adjustments or updates to the system information.

125. The device according to any one of claims 122 to 124, characterized in that, The fourth piece of information is also used to configure the default period and / or default index of the synchronization signal.

126. The device according to any one of claims 101 to 125, characterized in that, The device also includes: The third sending unit is used to send fifth information to the terminal device, the fifth information being used to indicate or adjust the index of the synchronization signal.

127. The device according to any one of claims 101 to 126, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the center frequency of the synchronization signal corresponding to the first transmission period is different from the center frequency of the synchronization signal corresponding to the second transmission period.

128. The device according to claim 127, characterized in that, The device also includes: The fourth transmitting unit is configured to continue transmitting the synchronization signal corresponding to the second transmission cycle; or to stop transmitting the synchronization signal corresponding to the second transmission cycle.

129. The device according to claim 127 or 128, characterized in that: The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in the same bandwidth of the terminal device; or... The center frequency of the synchronization signal corresponding to the first transmission cycle and the center frequency of the synchronization signal corresponding to the second transmission cycle are located in different bandwidths of the terminal device.

130. The device according to any one of claims 101 to 129, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and the device further includes: The fifth sending unit is used to send sixth information to the terminal device, the sixth information being used to indicate whether the network device should send the synchronization signal corresponding to the first transmission cycle.

131. The device according to any one of claims 101 to 130, characterized in that, The first information is used to indicate that the transmission period of the synchronization signal is adjusted from the second transmission period to the first transmission period, and there is a correspondence between the first time domain position corresponding to the first transmission period and the second time domain position corresponding to the second transmission period; The first time-domain position is related to one or more of the following: the first transmission period, the index of the synchronization signal corresponding to the first transmission period, and the half-frame index; The second time-domain position is related to one or more of the following: the second transmission period, the index of the synchronization signal corresponding to the second transmission period, and the half-frame index.

132. The device according to claim 131, characterized in that, The first time-domain position is a subset of the second time-domain position; or, the second time-domain position is a subset of the first time-domain position.

133. The device according to any one of claims 101 to 132, characterized in that, The first information is also used by the terminal device to determine whether to perform rate matching for the first transmission resource, which is simultaneously a candidate resource for both downlink transmission resources and the synchronization signal.

134. The device according to any one of claims 101 to 133, characterized in that, The synchronization signal is SSB.

135. A communication device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the communication device performs the method as described in any one of claims 1 to 33 or the method as described in any one of claims 34 to 67.

136. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the apparatus to perform the method as claimed in any one of claims 1 to 33 or the method as claimed in any one of claims 34 to 67.

137. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as claimed in any one of claims 1 to 33 or the method as claimed in any one of claims 34 to 67.

138. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1 to 33 or the method as described in any one of claims 34 to 67.

139. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as claimed in any one of claims 1 to 33 or the method as claimed in any one of claims 34 to 67.

140. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1 to 33 or the method as described in any one of claims 34 to 67.

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