A communication method and apparatus

Abstract

The application provides a communication method. By configuring and delivering, by a network device, a synchronization signal block used for enhanced paging and a corresponding transmission power mode, a terminal device can obtain correct transmission power of the synchronization signal block, accurately evaluate path loss, and then obtain accurate uplink transmission power, thereby improving the accuracy and stability of the communication system.

Description

Technical Field

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

[0002] With the continuous development of wireless communication technology, the scale of wireless communication systems is increasing daily. Before a network device can communicate with a terminal device, it needs to send a paging message within the network coverage area so that the network device can locate and notify the corresponding terminal device of its service request. However, when a terminal device is obstructed or its signal is interfered with, the network device may be unable to page the corresponding terminal device.

[0003] Therefore, network devices typically increase the signal power when sending paging messages to attempt to re-paging terminal devices that failed to respond. However, this may cause terminal devices to misjudge path loss, resulting in the use of inappropriate uplink transmission power. Summary of the Invention

[0004] This application provides a communication method that enables a terminal device to know the transmission power of the synchronization signal block when the network device performs enhanced paging, thereby correctly estimating path loss and adopting an appropriate uplink transmission power, thus improving the reliability and stability of communication between the terminal device and the network device. This application also provides corresponding apparatus, computer-readable storage media, and computer program products.

[0005] The first aspect of this application provides a communication method applied to a first communication device. The method includes: receiving a first synchronization signal block from a second communication device; wherein the first synchronization signal block is included in a set of synchronization signal blocks, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; receiving a first message from the second communication device; calculating path loss based on the transmission power and the reception power of the first synchronization signal block; and using the path loss to adjust the uplink transmission power of the first communication device.

[0006] In this application, the first communication device can be a terminal device or a component of the terminal device, such as a communication module, a circuit or chip responsible for communication functions (such as a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip or system-in-package (SIP) chip containing a modem core), a chip system, or a processor, etc., which can be applied in the terminal device. It can also be a logic module or software that can realize all or part of the functions of the terminal device.

[0007] In this application, the second communication device can be a network device or a component of an access network device, such as a communication module, processor, chip, chip system, or circuit that can be applied in the access network device, or a logic module or software that can realize all or part of the functions of the access network device.

[0008] In this application, before sending a paging message, the second communication device needs to establish a connection and synchronization with the first communication device by sending a synchronization signal block (SSB). The SSB includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). The PSS and SSS are used by the terminal device for time and frequency synchronization, as well as to obtain information such as the cell identifier. The PBCH carries basic cell configuration information, such as the system frame number and downlink system bandwidth. By receiving the SSB, the terminal device can quickly establish synchronization with the cell and obtain necessary system information, preparing for receiving paging messages.

[0009] In this application, the number of first communication devices can be one or more. When there are multiple first communication devices, the second communication device can send synchronization signal blocks to the multiple first communication devices respectively.

[0010] In this application, the synchronization signal block set is a collection of multiple synchronization signal blocks transmitted by the second communication device. The synchronization signal block set may include multiple synchronization signal blocks used to scan terminal devices in different directions within the coverage area of ​​the second communication device. The synchronization signal block set includes CD-SSB (cell-defined SSB) and / or NCD-SSB (non-cell-defining SSB).

[0011] Among them, CD-SSB stands for Cell Defined Synchronization Signal Block. CD-SSB is associated with Remaining Minimum System Information (RMSI). Its broadcast Master System Information Block (MIB) carries the scheduling information of System Information Block (SIB1), which can be used for scheduling related system messages for cell access. It is a cell-level configuration. NCD-SSB is another SSB broadcast in the same cell. It is not associated with SIB1 or other SIBs, does not have RMSI information, and is used for downlink synchronization of terminals, as well as to inform terminals that want to access the network of relevant CD-SSB auxiliary information.

[0012] In this application, the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging.

[0013] In this application, paging refers to the process by which a network device uses specific signaling and mechanisms to locate and notify a specific terminal device that it has data or other relevant information that needs to be processed. The network device sends paging messages to the area it covers. Terminal devices in an idle or inactive state listen to the paging channel at certain intervals. When a terminal device receives its own paging message, it will perform corresponding operations based on the paging reason, such as initiating a random access procedure to establish a connection with the network device, or reading system messages.

[0014] In this application, the second communication device first sends a paging message and the corresponding downlink synchronization signal in the normal paging mode, i.e., at normal transmission power. If it fails to receive the paging response message sent by the first communication device after sending the paging message, the second communication device considers the paging to have failed.

[0015] The second communication device can set a preset time threshold after sending a paging message. If it does not receive a paging response message from the first communication device within the preset time threshold, the second communication device considers the paging to have failed. The second communication device can also determine whether the paging has failed by whether it receives a connection establishment request or related signaling interaction initiated by the first communication device.

[0016] The preset time threshold can be configured by the upper-level communication device and sent to the second communication device through signaling or other means, or it can be pre-configured by the second communication device before leaving the factory, or it can be predefined, or it can be set by the second communication device itself based on historical parameters. There is no limitation on the setting method of the preset time threshold.

[0017] In this context, configuration refers to the process where the upper-level communication device sends configuration information or parameter values ​​to the second communication device via messages or signaling. This allows the second communication device to determine communication parameters or transmission resources based on these values ​​or information. Pre-configured content typically refers to information pre-recorded / written into the hardware and / or software of the second communication device itself, determined by the manufacturer and modifiable through software or hardware. Predefined content typically refers to standard-defined information that does not require configuration from other devices, pre-recorded / written into the hardware and / or software of the second communication device itself, or information that cannot be modified by network devices or other terminal devices. Pre-configuration can be performed by the network via SIB or RRC signaling.

[0018] In this application, if the second communication device confirms that the paging has failed, it will attempt to resend the paging message and the corresponding synchronization signal block to the first communication device by increasing the transmission power.

[0019] In this application, when the terminal device (first communication device) is blocked, the network device (second communication device) cannot page the terminal device through normal paging. Therefore, the network device needs to send the paging message to the terminal device again by increasing the transmission power of the downlink signal and the downlink synchronization signal. At this time, the paging process with the enhanced transmission power of the downlink signal is called enhanced paging.

[0020] In this application, the terminal device being in an obstructed state can refer to situations such as being placed in a pocket or bag, being in complex terrain such as mountains or forests, or being located inside complex buildings such as tall buildings. Other scenarios where the terminal device cannot receive paging messages are also possible and are not limited here.

[0021] In this application, the first synchronization signal block can be used to synchronize the first communication device with the second communication device, and can also be used by the first communication device to evaluate the signal quality of the cell within the coverage area of ​​the second communication device.

[0022] In this application, the first communication device can determine the time deviation between itself and the second communication device based on the time of receiving the first synchronization signal block, and make adjustments to ensure that the clock of the first communication device is consistent with the clock of the second communication device, thereby ensuring that the first communication device receives and sends data at the correct time in subsequent communication processes, thus guaranteeing the accuracy and reliability of communication.

[0023] In this application, the first communication device can evaluate the signal quality of the second communication device by measuring the signal strength of the first synchronization signal block, such as the reference signal received power (RSRP) and reference signal received quality (RSRQ).

[0024] In this application, the first message includes a first power, which is the transmission power of the synchronization signal block when the second communication device performs normal paging. The first message is used to determine the transmission power of the first synchronization signal block.

[0025] In this application, the first power can be set by the second communication device according to factors such as the current communication environment, cell coverage requirements, and default settings, and is the power of the synchronization signal block sent by the second communication device when performing normal paging.

[0026] In this application, the first message can be sent by the second communication device via a broadcast message or via other system messages, such as MIB or SIB messages. The method by which the second communication device sends the first message is not limited here.

[0027] In this application, if the first synchronization signal block is an NCD-SSB, then the NCD-SSB in the synchronization signal block set includes the first NCD-SSB and the second NCD-SSB; wherein, the transmission power of the second NCD-SSB is the same as the transmission power of the CD-SSB, the transmission power of the first NCD-SSB is greater than the transmission power of the CD-SSB, and the first synchronization signal block is the first NCD-SSB.

[0028] In this application, the first NCD-SSB can be a new set of NCD-SSBs configured separately by the second communication device in the synchronization signal block set. The first NCD-SSB has different transmission power and transmission period from the ordinary NCD-SSB (second NCD-SSB). The first NCD-SSB can also be a subset of NCD-SSBs selected by the second communication device from the existing NCD-SSBs in the synchronization signal block set.

[0029] In this application, the period of the synchronization signal block is the interval at which the second communication device sends the synchronization signal block, which can be 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, etc. At each corresponding interval, the second communication device will send a synchronization signal block once so that the first communication device can synchronize.

[0030] In this application, the periods and transmission power of the first NCD-SSB, the second NCD-SSB, and the CD-SSB can be configured by the second communication device. Specifically, the transmission power of the first NCD-SSB is greater than that of other types of SSBs in the synchronization signal block set; that is, the transmission power of the first NCD-SSB is greater than that of the second NCD-SSB / CD-SSB. The periods of the NCD-SSB and the CD-SSB are different, and the transmission power of the second NCD-SSB (ordinary NCD-SSB) is the same as that of the CD-SSB.

[0031] In this application, the first communication device also receives a second message from the second communication device; wherein the second message includes a power offset, which is used to indicate the difference between the transmission power of the first NCD-SSB and the first power; the transmission power of the first synchronization signal block is determined based on the first message and the second message.

[0032] In this application, when the first synchronization signal block is the first NCD-SSB, the first communication device can add the first power and the power offset to obtain the transmission power of the first synchronization signal block.

[0033] Optionally, if the second communication device does not use enhanced paging, i.e., the first synchronization signal block is another SSB, the first communication device can directly use the first power as the transmission power of the first synchronization signal block.

[0034] In this application, the transmit power and receive power of the first synchronization signal block are used by the first communication device to calculate path loss. Path loss can be used to adjust the uplink transmit power of the first communication device. The path loss value can be calculated by subtracting the receive power of the first synchronization signal block from its transmit power. A higher path loss means a more severe signal attenuation during transmission from the network device to the terminal device. To ensure the network device can receive a signal of sufficient strength to guarantee communication quality and correct demodulation, the terminal device needs to increase its uplink transmit power.

[0035] In this application, the NCD-SSB is configured by the second communication device using UE-level signaling. Therefore, when the first communication device is an older version of the terminal equipment, it cannot receive the NCD-SSB; that is, the older terminal equipment cannot support enhanced paging by the network equipment, nor can it interpret the meaning of the power offset in the second message. Therefore, by setting the power offset and the first synchronization signal block during enhanced paging as the first NCD-SSB, the path loss in calculating the transmission power of older terminal equipment using an incorrect first synchronization signal block can be avoided, thus improving the accuracy of the communication system.

[0036] In the first aspect mentioned above, the second communication device configures a specific NCD-SSB as the SSB for enhanced paging, and sends a second message to enable the first communication device to calculate the transmission power of the SSB used for enhanced paging based on the power offset in the message. This allows the first communication device to accurately calculate the path loss during enhanced paging, thereby obtaining an appropriate uplink transmission power based on the path loss. This improves the stability of the communication system, enhances communication quality, and increases the resource utilization and capacity of the entire system.

[0037] In one possible implementation, if the first synchronization signal block is a CD-SSB, the first message also includes a second power, which is the transmission power of the synchronization signal block when the second communication device performs enhanced paging, and the first power is less than the second power.

[0038] In this application, the second communication device can configure a first power and a second power in the first message, which are used to indicate the transmission power of the SSB when performing normal paging and the transmission power of the SSB when performing enhanced paging, respectively.

[0039] In this application, the first communication device will also receive instruction information from the second communication device; wherein, the instruction information is used to indicate whether the first synchronization signal block is in power enhancement mode, if the first synchronization signal block is in power enhancement mode, then the transmission power of the first synchronization signal block is the second power; if the first synchronization signal block is not in power enhancement mode, then the transmission power of the first synchronization signal block is the first power.

[0040] In this application, the power enhancement mode refers to the second communication device increasing the transmission power of the first synchronization signal block. If the first synchronization signal block is not in power enhancement mode, then the transmission power of the first synchronization signal block is the same as the transmission power of other synchronization signal blocks in the synchronization signal block set, i.e., the first power.

[0041] In this application, the position of the first synchronization signal block in the synchronization signal block set is determined based on the location of the first communication device. When the location of the first communication device is within the beam range of one SSB in the synchronization signal block set, the second communication device can increase the transmission power of the corresponding SSB, i.e., the SSB is the first synchronization signal block. When the location of the first communication device is within the beam range of multiple SSBs in the synchronization signal block set, the second communication device can increase the transmission power of SSBs in both directions, so that the first communication device can receive the enhanced paging SSB.

[0042] In this application, the instruction information is carried in at least one of the main system message MIB, broadcast message SIB1, and specific system message.

[0043] In this possible implementation, the second communication device designates one or more synchronization signal blocks in the synchronization signal block set as synchronization signal blocks for enhanced paging, and by adding the transmission power during normal paging and the transmission power during enhanced paging to the first message, the first communication device can select the correct transmission power to calculate path loss based on whether the first synchronization signal block is in power enhancement mode, thereby selecting an appropriate uplink transmission power and improving the stability and accuracy of the communication system.

[0044] In one possible implementation, if the first synchronization signal block is carried on the first channel, the first message also includes the transmission power difference between the first channel and the channels of the other synchronization signal blocks in the set of synchronization signal blocks.

[0045] In this application, the second communication device can achieve enhanced paging by transmitting a first synchronization signal block in the first channel. That is, when the first communication device receives a signal from the first channel, it can determine that the second communication device is using enhanced paging, and calculate the transmission power of the first synchronization signal block based on the transmission power difference in the first message.

[0046] In this possible implementation, the second communication device can be configured to use a new channel specifically for transmitting synchronization signals for enhanced paging, and the transmission power of this channel is greater than that of the channels of other synchronization signal blocks, thereby reducing the impact on ordinary synchronization signal blocks used for normal paging and improving the stability and accuracy of the communication system.

[0047] In one possible implementation, the method further includes: a first communication device receiving a third message from a second communication device; wherein the third message is used to indicate the power level of a first synchronization signal block; and determining the transmission power of the first synchronization signal block based on the power level and the first message.

[0048] In this application, the power level of the first synchronization signal block may include multiple levels, each corresponding to a different transmission power. For example, the second communication device may indicate the power level by a power offset, where the power offset is different for each power level and the power offset is the difference between each power level and the first power; the second communication device may also directly indicate the power level by defining the transmission power magnitude.

[0049] In this application, when the second communication device sends a paging message at the normal paging transmission power and does not receive a response, the second communication device can resend the paging message step by step according to the power level until the first communication device responds.

[0050] In this application, the second communication device may send a third message through at least one of the main system message MIB, broadcast message SIB1, and specific system message, without limitation.

[0051] Alternatively, the power level can also be indicated by the characteristics of the channel itself that transmits the first synchronization block. For example, a higher-power channel may be used to transmit the first synchronization block for enhanced paging, or the channel that transmits the synchronization block for enhanced paging may have a longer period.

[0052] In this possible implementation, the second communication device indicates the power level of the first synchronization signal block through a third message, and the power level indication method is flexible, enabling the first communication device to obtain the correct transmission power of the synchronization signal block to calculate the path loss, thereby selecting an appropriate uplink transmission power and improving the stability and accuracy of the communication system.

[0053] In one possible implementation, the method further includes: the first communication device sending first information to the second communication device; wherein the first information includes the measurement result of the first synchronization signal block, the paging mode of the first synchronization signal block and / or the power mode of the first synchronization signal block, which are the same as the power mode of the synchronization signal block corresponding to the first information and the power mode of the first synchronization signal block.

[0054] In this application, the measurement results of the first synchronization signal block include at least one of the following: reference signal received power, reference signal received quality, and synchronization signal block signal-to-interference-plus-noise ratio.

[0055] In this application, the paging modes of the first synchronization signal block include a normal paging mode and an enhanced paging mode. In the normal paging mode, the transmission power of the first synchronization signal block is relatively low; in the enhanced paging mode, the transmission power of the first synchronization signal block is relatively high. That is, the transmission power of the first synchronization signal block in the enhanced paging mode is greater than the transmission power of the first synchronization signal block in the normal paging mode.

[0056] In this application, the power mode of the first synchronization signal block corresponds to the paging mode of the first synchronization signal block, and may include an enhanced power mode and a normal power mode. The transmission power of the first synchronization signal block in the enhanced power mode is greater than the transmission power of the first synchronization signal block in the normal power mode.

[0057] In this application, the power mode of the synchronization signal block used by the first communication device to report the measurement results of the first synchronization signal block to the second communication device is the same as the power mode of the first synchronization signal block. That is, when the first synchronization signal block is a synchronization signal block sent by the second communication device during normal paging, the first communication device selects to use a synchronization signal block with a transmission power of the first power to send the measurement results of the first synchronization signal block; when the first synchronization signal block is a synchronization signal block sent by the second communication device during enhanced paging, the first communication device selects to use a synchronization signal block with a transmission power of the second power (or the first power plus a power offset) to send the measurement results of the first synchronization signal block.

[0058] In this application, after receiving the measurement results of the first synchronization signal block, the second communication device can evaluate the cell where the first communication device is located based on the measurement results, thereby helping the first communication device select the best cell for communication and improving the communication quality of the communication system. Furthermore, the second communication device can understand the channel quality status for communication with the first communication device based on the measurement results, and flexibly adjust the communication resources allocated to the first communication device based on the channel quality status, thereby improving the resource utilization rate of the communication system.

[0059] In this possible implementation, the first communication device reports the signal quality of the first synchronization signal block, and the power mode of the synchronization signal block used for reporting is the same as the power mode of the measured synchronization signal block. This allows the second communication device to understand the measurement feedback of the first communication device, avoiding confusion in measurement results due to the existence of multiple synchronization signal blocks with different power modes, and improving the accuracy of the measurement results.

[0060] In one possible implementation, the method further includes: sending second information to a second communication device; wherein the second information includes the measurement result of the first synchronization signal block; before sending the second information to the second communication device, if the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the measurement result of the first synchronization signal block is converted into the measurement result of the synchronization signal block corresponding to the first information according to the power mode.

[0061] In this application, the first communication device can report the measurement results of the first synchronization signal block using synchronization signal blocks with different power modes. If the first synchronization signal block is sent during enhanced paging (i.e., the power mode of the first synchronization signal block is enhanced power mode), and the reported synchronization signal block is sent during normal paging (i.e., the power mode of the reported synchronization signal block is normal power mode), then the first communication device can convert the measurement results of the first synchronization signal block into the results of normal paging.

[0062] That is, the transmission power of the first synchronization signal block is converted into the transmission power of the reported synchronization signal block by converting the measurement result of the first synchronization signal block into the equivalent transmission power of the reported synchronization signal block.

[0063] Optionally, when the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the second information may also include the measurement result of the first synchronization signal block and the access information (transmission power or paging mode) of the reported synchronization signal block. After receiving the second information, the second communication device can perform an equivalent conversion on the measurement result of the first synchronization signal block to obtain the measurement result corresponding to the reported synchronization signal block.

[0064] Optionally, the second information may also include both the measurement results of the first synchronization signal block and the measurement results obtained by conversion with a different power mode than the first synchronization signal block. The second communication device can evaluate the channel quality based on the measurement results obtained with the two different power modes.

[0065] In this possible implementation, the first communication device can perform an equivalent conversion of the measurement results based on the power mode of the measured synchronization signal block and the power mode of the reported synchronization signal block, thereby eliminating the need to report the power mode of the first synchronization signal block during reporting and improving the flexibility of reporting the measurement results of the first synchronization signal block.

[0066] A second aspect of this application provides a communication method applied to a second communication device. The method includes: sending a first synchronization signal block to a first communication device; wherein the first synchronization signal block is included in a set of synchronization signal blocks, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging.

[0067] Send a first message to the first communication device; wherein the first message includes a first power, the first power being the transmission power of the synchronization signal block when the second communication device performs normal paging, the first message being used to determine the transmission power of the first synchronization signal block, the transmission power of the first synchronization signal block and the reception power of the first synchronization signal block being used to calculate path loss, and the path loss being used to adjust the uplink transmission power of the first communication device.

[0068] In one possible implementation, the synchronization signal block set includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is NCD-SSB, then the NCD-SSB in the synchronization signal block set includes a first NCD-SSB and a second NCD-SSB. The transmission power of the second NCD-SSB is the same as that of the CD-SSB, and the transmission power of the first NCD-SSB is greater than that of the CD-SSB. The first synchronization signal block is the first NCD-SSB.

[0069] In one possible implementation, the method further includes: sending a second message to a first communication device; wherein the second message includes a power offset, the power offset being used to indicate the difference between the transmission power of the first NCD-SSB and the first power, and the first message and the second message being used to determine the transmission power of the first synchronization signal block.

[0070] In one possible implementation, the set of synchronization signal blocks includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is CD-SSB, the first message also includes a second power, which is the transmission power of the synchronization signal block when the second communication device performs enhanced paging. The first power is less than the second power.

[0071] In one possible implementation, the method further includes: sending indication information to a first communication device; wherein the indication information is used to indicate whether the first synchronization signal block is in power enhancement mode; if the first synchronization signal block is in power enhancement mode, the transmission power of the first synchronization signal block is a second power; if the first synchronization signal block is not in power enhancement mode, the transmission power of the first synchronization signal block is a first power.

[0072] In one possible implementation, the indication information is carried in at least one of the main system message MIB, the broadcast message SIB1, and a specific system message.

[0073] In one possible implementation, the position of the first synchronization signal block in the set of synchronization signal blocks is determined based on the location of the first communication device.

[0074] In one possible implementation, if the first synchronization signal block is carried on the first channel, the first message also includes the transmission power difference between the first channel and the channels of the other synchronization signal blocks in the synchronization signal block set.

[0075] In one possible implementation, the method further includes: sending a third message to a first communication device; wherein the third message is used to indicate the power level of the first synchronization signal block, and the power level and the first message are used to determine the transmission power of the first synchronization signal block.

[0076] In one possible implementation, the method further includes: receiving first information from a first communication device; wherein the first information includes a measurement result of a first synchronization signal block, a paging mode of the first synchronization signal block, and / or a power mode of the first synchronization signal block, which is the same as the power mode of the synchronization signal block corresponding to the first information and the power mode of the first synchronization signal block.

[0077] In one possible implementation, the method further includes: receiving second information from the first communication device; wherein the second information includes the measurement result of the first synchronization signal block;

[0078] Before receiving the second information from the first communication device, if the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the power mode is also used by the first communication device to convert the measurement result of the first synchronization signal block into the measurement result of the synchronization signal block corresponding to the first information.

[0079] In the second aspect mentioned above, the second communication device instructs the first communication device on the transmission power of the synchronization signal block during paging enhancement, enabling the first communication device to accurately calculate the path loss during enhanced paging, thereby obtaining an appropriate uplink transmission power based on the path loss, which improves the stability of the communication system, enhances communication quality, and increases the resource utilization and capacity of the entire system.

[0080] A third aspect of this application provides a communication device, which can be a first communication device, including: a transceiver module and a processing module;

[0081] The transceiver module is used to receive a first synchronization signal block from the second communication device; wherein the first synchronization signal block is included in the synchronization signal block set, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging.

[0082] The transceiver module is also used to receive a first message from the second communication device; wherein the first message includes a first power, the first power being the transmission power of the synchronization signal block when the second communication device performs normal paging, and the first message is used to determine the transmission power of the first synchronization signal block;

[0083] The processing module is used to calculate the path loss based on the transmission power and reception power of the first synchronization signal block; the path loss is used to adjust the uplink transmission power of the first communication device.

[0084] In one possible implementation, the synchronization signal block set includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is NCD-SSB, then the NCD-SSB in the synchronization signal block set includes a first NCD-SSB and a second NCD-SSB. The transmission power of the second NCD-SSB is the same as that of the CD-SSB, and the transmission power of the first NCD-SSB is greater than that of the CD-SSB. The first synchronization signal block is the first NCD-SSB.

[0085] In one possible implementation, the transceiver module is further configured to receive a second message from the second communication device; wherein the second message includes a power offset, the power offset being used to indicate the difference between the transmission power of the first NCD-SSB and the first power;

[0086] The processing module is also used to determine the transmission power of the first synchronization signal block based on the first message and the second message.

[0087] In one possible implementation, the set of synchronization signal blocks includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is CD-SSB, the first message also includes a second power, which is the transmission power of the synchronization signal block when the second communication device performs enhanced paging. The first power is less than the second power.

[0088] In one possible implementation, the transceiver module is further configured to receive indication information from the second communication device; wherein the indication information is used to indicate whether the first synchronization signal block is in power enhancement mode; if the first synchronization signal block is in power enhancement mode, the transmission power of the first synchronization signal block is the second power; if the first synchronization signal block is not in power enhancement mode, the transmission power of the first synchronization signal block is the first power.

[0089] In one possible implementation, the indication information is carried in at least one of the main system message MIB, the broadcast message SIB1, and a specific system message.

[0090] In one possible implementation, the position of the first synchronization signal block in the set of synchronization signal blocks is determined based on the location of the first communication device.

[0091] In one possible implementation, if the first synchronization signal block is carried on the first channel, the first message also includes the transmission power difference between the first channel and the channels of the other synchronization signal blocks in the synchronization signal block set.

[0092] In one possible implementation, the transceiver module is further configured to receive a third message from the second communication device; wherein the third message is used to indicate the power level of the first synchronization signal block;

[0093] The processing module is also used to determine the transmission power of the first synchronization signal block based on the power level and the first message.

[0094] In one possible implementation, the transceiver module is further configured to send first information to the second communication device; wherein the first information includes the measurement result of the first synchronization signal block, the paging mode of the first synchronization signal block, and / or the power mode of the first synchronization signal block, which are the same as the power mode of the synchronization signal block corresponding to the first information and the power mode of the first synchronization signal block.

[0095] In one possible implementation, the transceiver module is further configured to send second information to the second communication device; wherein the second information includes the measurement result of the first synchronization signal block;

[0096] Before sending the second information to the second communication device, if the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the processing module is further configured to convert the measurement result of the first synchronization signal block into the measurement result of the synchronization signal block corresponding to the first information according to the power mode.

[0097] In this application, the fourth aspect provides a communication device, which can be a second communication device that communicates with a first communication device. The communication device includes: a transceiver module and a processing module.

[0098] The transceiver module is used to send a first synchronization signal block to a first communication device; wherein the first synchronization signal block is included in a set of synchronization signal blocks, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; the transceiver module is also used to send a first message to the first communication device; wherein the first message includes a first power, the first power being the transmission power of the second communication device when sending the synchronization signal block during normal paging, the first message being used to determine the transmission power of the first synchronization signal block, the transmission power of the first synchronization signal block and the reception power of the first synchronization signal block being used to calculate path loss, and the path loss being used to adjust the uplink transmission power of the first communication device.

[0099] In one possible implementation, the synchronization signal block set includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is NCD-SSB, then the NCD-SSB in the synchronization signal block set includes a first NCD-SSB and a second NCD-SSB. The transmission power of the second NCD-SSB is the same as that of the CD-SSB, and the transmission power of the first NCD-SSB is greater than that of the CD-SSB. The first synchronization signal block is the first NCD-SSB.

[0100] In one possible implementation, the transceiver module is further configured to send a second message to the first communication device; wherein the second message includes a power offset, the power offset being used to indicate the difference between the transmission power of the first NCD-SSB and the first power, and the first message and the second message being used to determine the transmission power of the first synchronization signal block.

[0101] In one possible implementation, the set of synchronization signal blocks includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is CD-SSB, the first message also includes a second power, which is the transmission power of the synchronization signal block when the second communication device performs enhanced paging. The first power is less than the second power.

[0102] In one possible implementation, the transceiver module is further configured to send indication information to the first communication device; wherein the indication information is used to indicate whether the first synchronization signal block is in power enhancement mode; if the first synchronization signal block is in power enhancement mode, the transmission power of the first synchronization signal block is the second power; if the first synchronization signal block is not in power enhancement mode, the transmission power of the first synchronization signal block is the first power.

[0103] In one possible implementation, the indication information is carried in at least one of the main system message MIB, the broadcast message SIB1, and a specific system message.

[0104] In one possible implementation, the position of the first synchronization signal block in the set of synchronization signal blocks is determined based on the location of the first communication device.

[0105] In one possible implementation, if the first synchronization signal block is carried on the first channel, the first message also includes the transmission power difference between the first channel and the channels of the other synchronization signal blocks in the synchronization signal block set.

[0106] In one possible implementation, the transceiver module is further configured to send a third message to the first communication device; wherein the third message is used to indicate the power level of the first synchronization signal block, and the power level and the first message are used to determine the transmission power of the first synchronization signal block.

[0107] In one possible implementation, the transceiver module is further configured to receive first information from the first communication device; wherein the first information includes the measurement result of the first synchronization signal block, the paging mode of the first synchronization signal block, and / or the power mode of the first synchronization signal block, which are the same as the power mode of the synchronization signal block corresponding to the first information and the power mode of the first synchronization signal block.

[0108] In one possible implementation, the transceiver module is further configured to receive second information from the first communication device; wherein the second information includes the measurement result of the first synchronization signal block;

[0109] Before receiving the second information from the first communication device, if the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the power mode is also used by the first communication device to convert the measurement result of the first synchronization signal block into the measurement result of the synchronization signal block corresponding to the first information.

[0110] A fifth aspect of this application provides a communication device including a processor. The processor is configured to invoke and execute computer programs or instructions, causing the processor to implement as described in the first aspect or any of the implementations in the first aspect.

[0111] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.

[0112] Optionally, the communication device includes a memory in which computer programs or instructions are stored.

[0113] The communication device mentioned in the fifth aspect above can be a device or a chip (system) in a device.

[0114] A sixth aspect of this application provides a communication device including a processor. The processor is configured to invoke and execute computer programs or instructions, causing the processor to implement as described in the second aspect or any of the implementations in the second aspect.

[0115] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.

[0116] Optionally, the communication device includes a memory in which computer programs or instructions are stored.

[0117] The communication device mentioned in the sixth aspect can be a device or a chip (system) in a device.

[0118] The seventh aspect of this application provides a communication device, which may be a first communication device or a module or unit (e.g., a chip, a chip system, or a circuit) in the first communication device that corresponds to the execution of the methods / operations / steps / actions described in the first aspect.

[0119] The eighth aspect of this application provides a communication device, which may be a second communication device or a module or unit (e.g., a chip, a chip system, or a circuit) in the second communication device that corresponds to the execution of the methods / operations / steps / actions described in the second aspect.

[0120] The ninth aspect of this application provides a computer-readable storage medium including a computer program or instructions that, when executed on a computer, cause the computer to perform an implementation as described in the first aspect or any of the first aspects.

[0121] The tenth aspect of this application provides a computer-readable storage medium including a computer program or instructions that, when executed on a computer, cause the computer to perform an implementation as described in the second aspect or any of the second aspects.

[0122] The eleventh aspect of this application provides a computer program product including a computer program or instructions, which, when run on a computer, causes the computer to perform an implementation as described in the first aspect or any of the first aspects.

[0123] The twelfth aspect of this application provides a computer program product including a computer program or instructions, which, when run on a computer, causes the computer to perform an implementation as described in the second aspect or any of the second aspects.

[0124] The thirteenth aspect of this application provides a chip device, including a processor for calling a computer program or instructions in memory to cause the processor to execute the first aspect or any implementation thereof.

[0125] Optionally, the memory may be located inside or outside the chip device.

[0126] The fourteenth aspect of this application provides a chip device including a processor for calling a computer program or instructions stored in a memory, so that the processor executes the second aspect or any implementation thereof described above.

[0127] Optionally, the memory may be located inside or outside the chip device.

[0128] The fifteenth aspect of this application provides a communication system, which includes a first communication device and a second communication device. The first communication device is used to execute the first aspect or any one of the implementations of the first aspect, and the second communication device is used to execute the second aspect or any one of the implementations of the second aspect.

[0129] The technical effects of the third aspect or any possible implementation of the third aspect, the fifth aspect, the seventh aspect, the ninth aspect, the eleventh aspect, the thirteenth aspect or the fifteenth aspect can be found in the first aspect or the technical effects of different possible implementations of the first aspect, and will not be repeated here.

[0130] The technical effects of the fourth aspect or any possible implementation of the fourth aspect, the sixth aspect, the eighth aspect, the tenth aspect, the twelfth aspect, the fourteenth aspect, or the fifteenth aspect can be found in the technical effects of the second aspect or different possible implementations of the second aspect, and will not be repeated here. Attached Figure Description

[0131] Figure 1A This is an example schematic diagram of a communication scenario provided in an embodiment of this application;

[0132] Figure 1B This is another example schematic diagram of the communication scenario provided in the embodiments of this application;

[0133] Figure 1C This is another example schematic diagram of the communication scenario provided in the embodiments of this application;

[0134] Figure 1D This is another example schematic diagram of the communication scenario provided in the embodiments of this application;

[0135] Figure 2 This is a schematic diagram of an embodiment of the communication method provided in this application;

[0136] Figure 3 This is a schematic diagram of another embodiment of the communication method provided in this application;

[0137] Figure 4 This is a schematic diagram of an embodiment of the synchronization signal block set in the communication method provided in this application;

[0138] Figure 5 This is a schematic diagram of another embodiment of the communication method provided in this application;

[0139] Figure 6 This is a schematic diagram of another embodiment of the synchronization signal block set in the communication method provided in this application;

[0140] Figure 7 This is a schematic diagram of the O-RAN system provided in an embodiment of this application;

[0141] Figure 8 This is another structural schematic diagram of the O-RAN system provided in the embodiments of this application;

[0142] Figure 9This is a schematic diagram of the structure of the communication device provided in an embodiment of this application;

[0143] Figure 10 This is another structural schematic diagram of the communication device provided in the embodiments of this application;

[0144] Figure 11 This is another structural schematic diagram of the communication device provided in the embodiments of this application;

[0145] Figure 12 This is another structural schematic diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0146] The embodiments of this application are described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. As those skilled in the art will recognize, with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0147] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0148] This application provides a communication method for providing different types of random access opportunities that meet the needs of terminal devices with different capabilities when the terminal device accesses the network where the network device is located, thereby improving the success rate of random access by the terminal device. This application also provides corresponding apparatus, computer-readable storage media, and computer program products, etc., which are described in detail below.

[0149] The technical solutions of this application can be applied to various communication systems, such as: satellite communication, 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication system (UMTS), future communication systems after 5G networks, vehicle to everything (V2X) communication systems, machine to machine (M2M) communication, machine type communication (MTC), internet of things (IoT) communication systems, or other communication systems. Satellite communication systems can be communication systems integrated with 4G, 5G mobile communication systems, or future communication systems, such as non-terrestrial networks (NTN). NTN systems can be, for example, satellite communication systems, and can also include unmanned aerial vehicles (UAVs), high altitude platform stations (HAPS), and other aerial access network equipment; this application does not limit this.

[0150] The communication system described in this application can be a communication system based on orthogonal frequency division multiplexing (OFDM) and / or time division multiplexing (TDM), or a communication system or communication and sensing system based on frequency modulated continuous waveform (FMCW).

[0151] The terminal equipment and network equipment of this application are described below.

[0152] Terminal equipment can be a device capable of receiving core network information or a wireless terminal device that handles network device scheduling and instruction information. Wireless terminal equipment can be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connectivity, another processing device connected to a wireless modem, or a device with sensing capabilities.

[0153] Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that includes wireless communication functions, such as handheld devices or vehicle-mounted devices with wireless connectivity.

[0154] Terminal devices can communicate with one or more core networks or the Internet via a radio access network (RAN). Terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones), computers, and data cards. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets, and computers with wireless transceiver capabilities. Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment, mobile terminal, etc. In satellite communication, terminal equipment can be a satellite communication terminal, such as a very small aperture terminal (VSAT), as well as portable stations, fixed stations, vehicle-mounted or airborne satellite communication terminals, etc. It should be understood that in these scenarios, satellite communication terminals communicate with satellites and can act as micro base stations or satellite data stations to further provide data interfaces to user equipment accessing the satellite communication terminal.

[0155] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0156] Furthermore, terminal devices can also be terminal devices for communication systems evolved from fifth-generation (5G) communication systems (such as 5G Advanced or future communication systems). For example, the form and function of communication terminals can be further expanded, including but not limited to vehicles, cellular network terminals (integrating satellite terminal functions), drones, Internet of Things (IoT) devices, as well as virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in vehicle-to-everything (V2X) communication, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes. For example, wireless terminals in V2X communication can be in-vehicle equipment, vehicle-mounted equipment, in-vehicle modules, vehicles, etc. Wireless terminals in industrial control can be cameras, robots, etc. Wireless terminals in smart homes can be televisions, air conditioners, robot vacuums, speakers, set-top boxes, etc.

[0157] In this embodiment, the apparatus for implementing the functions of the terminal device can be the terminal device itself, or a component of the terminal device, such as a communication module, a circuit or chip responsible for communication functions (e.g., a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip or system-in-package (SIP) chip containing a modem core), a chip system, or a processor, etc., or a logic module or software capable of implementing all or part of the functions of the terminal device. In this embodiment, the terminal device is used as an example to illustrate the apparatus for implementing the functions of the terminal device, and this does not constitute a limitation on the solution of this embodiment.

[0158] The network device in this application embodiment is a means deployed in a radio access network to provide wireless communication functions for terminal devices. It can refer to a radio access network (RAN) node (or device) or base station that connects the terminal device to the wireless network. Currently, some common examples of access network nodes (or devices) include: Node B (NB), evolved Node B (eNB or eNodeB), generation node B (gNB) in 5G NR systems, nodes in future communication systems (e.g., xNodeB), transmission reception point (TRP), transmitting point (TP), transmission measurement function (TMF), radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), access point (AP), etc. Furthermore, in network architectures such as cloud radio access network (CloudRAN) or open radio access network (ORAN), the access network device can be a device including CU and / or DU. In the RAN system, which includes CUs and DUs, the protocol layers of gNBs are separated. Some protocol layer functions are centrally controlled by the CU, while the remaining functions are distributed in the DU, which is centrally controlled by the CU. This separation of CUs and DUs can be based on the protocol stack. For example, one possible separation method is to deploy the RRC, Service Data Adaptation Protocol (SDAP), and Packet Data Convergence Protocol (PDCP) layers in the CU, and the remaining Radio Link Control (RLC), Media Access Control (MAC), and Physical (PHY) layers in the DU. CUs and DUs are connected via the F1 interface. A CU, representing its associated gNB, connects to the core network via the NG interface, and a CU, representing its associated gNB, connects to other gNBs (or other CUs) via the Xn interface. In actual RAN deployments, in addition to the logical gNBs composed of CUs and DUs, the RAN equipment also includes RUs (not shown in the diagram).An RU is a hardware unit that includes some PHY layer functionality and / or antenna equipment. Optionally, the RU can be configured independently of the antenna equipment (e.g., an antenna line device (ALD)) or integrated with it. For example, in a 5G NR system, the aforementioned RU can be an active antenna unit (AAU), which is a processing unit integrating a remote radio unit (RRU) (or remote radio head (RRH)) and antenna equipment. In a satellite communication system, the network equipment can be a satellite or access network equipment mounted on a satellite.

[0159] It should be noted that in practical applications, there may be multiple ways to deploy access network devices, and this application does not limit them.

[0160] In some examples, the CU can be split into control plane CU nodes (central unit-control plane (CU-CP)) and user plane CU nodes (central unit-user plane (CU-UP)). The CU-CP is a logical node carrying the RRC layer and the PDCP-C (control plane part of PDCP) layer, used to implement the CU's control plane functions. The CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. The CU-UP is a logical node carrying the SDAP layer and the PDCP-U (user plane part of PDCP) layer, used to implement the CU's user plane functions. The CU-UP can interact with network elements in the core network used to implement user plane functions. In the core network, network elements used to implement user plane functions, such as the user plane function (UPF) in a 5G system, are responsible for forwarding and receiving data in terminal devices. The above configuration of CU and DU is merely an example; the functions of CU and DU can be configured as needed. For example, CU or DU can be configured to have more protocol layer functions, or to have only some protocol layer processing functions. For instance, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of CU or DU can be divided according to service type or other system requirements, such as by latency, placing functions that need to meet low latency requirements in the DU and functions that do not need to meet such latency requirements in the CU.

[0161] In some examples, the DU is a logical node that carries the RLC layer, MAC layer, higher physical layer (HigherPHY) layer, and other functions. In some examples, the DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0162] In some examples, the RU is a logical node that carries both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP TRP or RRH or other similar entity. In some examples, the Low-PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0163] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a lower-layer split-control, user, and synchronization (LLS-CUS) interface through a fronthaul link. LLS-CUS may include LLS-C and LLS-U interfaces that provide the control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0164] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0165] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples.

[0166] In this embodiment, the apparatus for implementing the functions of the network device can be a network device itself, or a component of an access network device, such as a communication module, processor, chip, chip system, or circuit that can be applied in the access network device. It can also be a logic module or software that can implement all or part of the functions of the access network device. This apparatus can be installed in the network device or used in conjunction with the network device. In this embodiment, only a network device is used as an example to illustrate the apparatus for implementing the functions of the access network device, and this does not constitute a limitation on the solution of this embodiment.

[0167] It should be noted that network devices and / or terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located. Furthermore, terminal devices and network devices can be hardware devices; they can also be software functions running on dedicated or general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform); or they can be entities that include dedicated or general-purpose hardware devices and software functions. This application does not limit the specific form of terminal devices and network devices.

[0168] For ease of understanding, the technical terms involved in the embodiments of this application are briefly introduced below:

[0169] (1) Synchronization signal block (SSB): The SSB consists of synchronization signals and broadcast signals. The synchronization signals include the primary synchronization signal (PSS) and the secondary synchronization signal (SSS), while the broadcast signals contain the data from the physical broadcast channel (PBCH) and the demodulation reference signal (DMRS).

[0170] (2) Paging: When a network device needs to establish a connection with a terminal device or send important information such as system message updates to a terminal device, it will use paging to locate the terminal device and establish a communication link so that the terminal device can receive relevant information. The network device will send a paging signal through the downlink channel to all possible paging opportunities within the coverage area. The paging signal carries the terminal's identifier and the paging reason. When the terminal device is idle, it will periodically listen to the paging channel. When it receives a paging message that matches its own identifier, it will take corresponding actions according to the paging reason.

[0171] (3) SSB burst: that is, a burst of synchronization signal blocks. An SSB burst is a set of SSBs. Each SSB contains three parts: the primary synchronization signal (PSS), the secondary synchronization signal (SSS), and the physical broadcast channel (PBCH).

[0172] (4) Path loss: Path loss refers to the weakening of wireless signal strength during transmission due to factors such as propagation distance and propagation environment. In downlink synchronization signals, the network side sends the transmission power of the downlink synchronization signal, and the terminal can assess the magnitude of path loss based on the quality of the received signal, thereby determining the uplink transmission power.

[0173] (5) Configuration and Pre-configuration: In this application, both configuration and pre-configuration are used. Configuration refers to the network device / server sending configuration information or parameter values ​​to the terminal via messages or signaling, so that the terminal can determine communication parameters or transmission resources based on these values ​​or information. Pre-configuration is similar to configuration; it can be parameter information or parameter values ​​negotiated in advance between the network device / server and the terminal device, or it can be parameter information or parameter values ​​used by the base station / network device or terminal device as specified in standard protocols, or it can be parameter information or parameter values ​​pre-stored in the base station / server or terminal device. This application does not limit this.

[0174] Furthermore, these values ​​and parameters can be changed or updated.

[0175] (6) The terms "system" and "network" in the embodiments of this application can be used interchangeably. "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, sequence, priority or importance of multiple objects.

[0176] (7) In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include sending directly through the air interface or sending indirectly through the air interface by other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include receiving directly from YY through the air interface or receiving indirectly from YY through the air interface by other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0177] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0178] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.

[0179] (8) In the embodiments of this application, "instruction" may include direct instruction and indirect instruction, as well as explicit instruction and implicit instruction. The information indicated by a certain piece of information (as described below, the instruction information) is called the information to be instructed. In the specific implementation process, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is an association between the other information and the information to be instructed; or it can only indicate a part of the information to be instructed, while the other parts of the information to be instructed are known or pre-agreed upon. For example, the instruction can be implemented by using a pre-agreed (e.g., protocol pre-defined or pre-configured) arrangement order of various information, thereby reducing the instruction overhead to a certain extent. This application does not limit the specific method of instruction. It is understood that for the sender of the instruction information, the instruction information can be used to indicate the information to be instructed; for the receiver of the instruction information, the instruction information can be used to determine the information to be instructed.

[0180] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and the various methods / designs / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various methods / designs / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various methods / designs / implementations within each embodiment can be combined to form new embodiments, methods, or implementations based on their inherent logical relationships. The following descriptions of the embodiments of this application do not constitute a limitation on the scope of protection of this application.

[0181] The communication method provided in this application embodiment can be applied to, for example... Figures 1A to 1D The communication system shown.

[0182] Please see Figure 1A This is a schematic diagram of the architecture of the communication system 1000 used in an embodiment of this application. Figure 1A As shown, the communication system may include a radio access network (RAN) 100. Optionally, the communication system 1000 may also include a core network 200 and an Internet 300. The RAN 100 includes at least one RAN node (e.g., Figure 1A 110a and 110b, collectively referred to as 110, may also include at least one terminal (such as...). Figure 1A RAN100, denoted as RAN100, comprises RAN nodes 120a-120j, collectively referred to as RAN120. RAN100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1A(Not shown in the image). Terminal 120 connects wirelessly to RAN node 110, and RAN node 110 connects wirelessly or via a wired connection to core network 200. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be independent physical devices, or they can be the same physical device integrating the logical functions of core network equipment and RAN nodes. Terminals can connect to each other, and RAN nodes can connect to each other, via wired or wireless connections.

[0183] by Figure 1A Taking the communication system shown as an example, different devices (including network devices to network devices, network devices to terminal devices, and / or terminal devices to terminal devices) perform communication-related services. For example, Figure 1B As shown, multiple terminal devices can exist within the network coverage area of ​​a network device, and the network device can send synchronization signal blocks and paging messages to the terminal devices respectively.

[0184] The communication method provided in this application embodiment can also be applied to, for example... Figure 1C and Figure 1D The satellite network scenario shown. (As shown) Figure 1C and Figure 1D As shown, in this communication system, the terrestrial mobile terminal (UE) can access the network via the air interface. Base stations can be deployed on satellites and connected to the ground core network via wireless links, or they can be deployed on the ground, with the satellite acting as a transparent relay node. Simultaneously, wireless links can exist between satellites to facilitate signaling interaction and user data transmission between base stations (if the satellite is a base station). The base station can be a 4G base station or a 5G base station (generally, 5G is also called New Radio, NR), and this is not limited to any particular type.

[0185] In addition to being deployed on satellites, base stations can also be deployed on satellites as transparent nodes, forwarding data sent by terminals to ground-based base stations or forwarding signaling sent by base stations to terminals. The core network includes multiple functional units, such as the Access and Mobility Management Unit (AMF), the Session Management Function Unit (SMF), and the User Plane Processing Unit (UPF).

[0186] In existing technology, when a network device needs to page a terminal device, if it does not receive a paging response, the network device may attempt to page again by increasing the signal power of the user's corresponding paging area. If the network device increases the power so that a terminal device in an obstructed state, such as a terminal in a pocket, can receive the paging signal, then the downlink synchronization signal transmission power also needs to be increased. Since terminal devices that do not need enhanced paging will also assess path loss based on the corresponding downlink synchronization signal, if they are unaware that the network device has increased its power, they will use the normal paging transmission power to estimate the path loss, thus obtaining an inappropriate uplink transmission power based on incorrect path loss.

[0187] To address the aforementioned problems, this application provides a communication method and related apparatus, which will be described in detail below with reference to the accompanying drawings.

[0188] The communication method provided in this application can be implemented through the interaction of a first communication device and a second communication device. The first communication device can be a communication device for receiving and sending information, or a communication device capable of supporting the functions required for the communication method, such as a chip. Exemplarily, the first communication device is a terminal device, or a chip disposed in a terminal device to implement the functions of the terminal device, or other components for implementing the functions of the terminal device. In the following description, the example of the first communication device being a terminal device will be used. The second communication device can be a communication device for data exchange and communication, or a communication device capable of supporting the functions required for the communication method, such as a chip. Exemplarily, the second communication device is a network device, or a chip disposed in a network device to implement the functions of the network device, or other components for implementing the functions of the network device. In the following description, the example of the second communication device being a network device will be used.

[0189] like Figure 2 As shown, the communication method provided in this application embodiment includes:

[0190] S201. The second communication device sends a first synchronization signal block, and correspondingly, the first communication device receives the first synchronization signal block from the second communication device.

[0191] The first synchronization signal block is included in the synchronization signal block set. The first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging.

[0192] In this application, the second communication device first sends a paging message and the corresponding downlink synchronization signal in the normal paging mode, i.e., at normal transmission power. If it fails to receive the paging response message sent by the first communication device after sending the paging message, the second communication device considers the paging to have failed.

[0193] The second communication device can set a preset time threshold after sending a paging message. If it does not receive a paging response message from the first communication device within the preset time threshold, the second communication device considers the paging to have failed. The second communication device can also determine whether the paging has failed by whether it receives a connection establishment request or related signaling interaction initiated by the first communication device.

[0194] The preset time threshold can be configured by the upper-level communication device and sent to the second communication device through signaling or other means, or it can be pre-configured by the second communication device before leaving the factory, or it can be predefined, or it can be set by the second communication device itself based on historical parameters. There is no limitation on the setting method of the preset time threshold.

[0195] In this context, configuration refers to the process where the upper-level communication device sends configuration information or parameter values ​​to the second communication device via messages or signaling. This allows the second communication device to determine communication parameters or transmission resources based on these values ​​or information. Pre-configured content typically refers to information pre-recorded / written into the hardware and / or software of the second communication device itself, determined by the manufacturer and modifiable through software or hardware. Predefined content typically refers to standard-defined information that does not require configuration from other devices, pre-recorded / written into the hardware and / or software of the second communication device itself, or information that cannot be modified by network devices or other terminal devices. Pre-configuration can be performed by the network via SIB or RRC signaling.

[0196] In this application, if the second communication device confirms that the paging has failed, it will attempt to resend the paging message and the corresponding synchronization signal block to the first communication device by increasing the transmission power.

[0197] In this application, when the terminal device (first communication device) is blocked, the network device (second communication device) cannot page the terminal device through normal paging. Therefore, the network device needs to send the paging message to the terminal device again by increasing the transmission power of the downlink signal and the downlink synchronization signal. At this time, the paging process with the enhanced transmission power of the downlink signal is called enhanced paging.

[0198] In this application, the terminal device being in an obstructed state can refer to situations such as being placed in a pocket or bag, being in complex terrain such as mountains or forests, or being located inside complex buildings such as tall buildings. Other scenarios where the terminal device cannot receive paging messages are also possible and are not limited here.

[0199] In this application, before sending a paging message, the second communication device needs to establish a connection and synchronization with the first communication device by sending a synchronization signal block (SSB). The SSB includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). The PSS and SSS are used by the terminal device for time and frequency synchronization, as well as to obtain information such as the cell identifier. The PBCH carries basic cell configuration information, such as the system frame number and downlink system bandwidth. By receiving the SSB, the terminal device can quickly establish synchronization with the cell and obtain necessary system information, preparing for receiving paging messages.

[0200] In this application, the synchronization signal block set is a collection of multiple synchronization signal blocks transmitted by the second communication device. The synchronization signal block set may include multiple synchronization signal blocks used to scan terminal devices in different directions within the coverage area of ​​the second communication device. The synchronization signal block set includes CD-SSB (cell-defined SSB) and / or NCD-SSB (non-cell-defining SSB).

[0201] Among them, CD-SSB stands for Cell Defined Synchronization Signal Block. CD-SSB is associated with Remaining Minimum System Information (RMSI). Its broadcast Master System Information Block (MIB) carries the scheduling information of System Information Block (SIB1), which can be used for scheduling related system messages for cell access. It is a cell-level configuration. NCD-SSB is another SSB broadcast in the same cell. It is not associated with SIB1 or other SIBs, does not have RMSI information, and is used for downlink synchronization of terminals, as well as to inform terminals that want to access the network of relevant CD-SSB auxiliary information.

[0202] In this application, the position of the first synchronization signal block in the synchronization signal block set is determined based on the location of the first communication device. When the location of the first communication device is within the beam range of one SSB in the synchronization signal block set, the second communication device can increase the transmission power of the corresponding SSB, i.e., the SSB is the first synchronization signal block. When the location of the first communication device is within the beam range of multiple SSBs in the synchronization signal block set, the second communication device can increase the transmission power of SSBs in both directions, so that the first communication device can receive the enhanced paging SSB.

[0203] S202. The second communication device sends a first message, and correspondingly, the first communication device receives the first message from the second communication device.

[0204] The first message includes a first power, which is the transmission power of the synchronization signal block when the second communication device performs normal paging. The first message is used to determine the transmission power of the first synchronization signal block.

[0205] In this application, the first power can be set by the second communication device according to factors such as the current communication environment, cell coverage requirements, and default settings, and is the power of the synchronization signal block sent by the second communication device when performing normal paging.

[0206] In this application, the first message can be sent by the second communication device via a broadcast message or via other system messages, such as MIB or SIB messages. The method by which the second communication device sends the first message is not limited here.

[0207] In this application, the first message can directly indicate the transmission power during paging enhancement, or it can indirectly indicate the transmission power during paging enhancement through a power offset.

[0208] S203. The first communication device calculates the path loss.

[0209] In this application, the transmit power and receive power of the first synchronization signal block are used by the first communication device to calculate path loss, and the path loss can be used to adjust the uplink transmit power of the first communication device. The value of the path loss can be calculated by subtracting the receive power of the first synchronization signal block from its transmit power.

[0210] The greater the path loss, the more severe the signal attenuation during transmission from the network device to the terminal device. To ensure sufficient signal strength for network devices to receive signals and guarantee communication quality and proper demodulation, the terminal device needs to increase its uplink transmit power.

[0211] In this application, the received power of the first synchronization signal block is measured by the first communication device itself. The average power value can be obtained by squaring the amplitude of the synchronization signal block and then averaging it over a certain time window.

[0212] In this way, when the second communication device sends the first synchronization signal block during enhanced paging, the second communication device can correctly obtain the transmission power of the first synchronization signal block and use the transmission power to accurately assess the current path loss, avoiding the situation where the second communication device increases the transmission power of the synchronization signal block without the first communication device being aware of it, thereby improving the accuracy of the path loss calculated by the first communication device.

[0213] In one possible embodiment, if the first synchronization signal block is NCD-SSB, such as Figure 3 As shown, the communication method provided in this application embodiment may further include:

[0214] S301. The second communication device sends a first synchronization signal block, and correspondingly, the first communication device receives the first synchronization signal block from the second communication device.

[0215] In this application, if the first synchronization signal block is an NCD-SSB, then the NCD-SSB in the synchronization signal block set includes the first NCD-SSB and the second NCD-SSB; wherein, the transmission power of the second NCD-SSB is the same as the transmission power of the CD-SSB, the transmission power of the first NCD-SSB is greater than the transmission power of the CD-SSB, and the first synchronization signal block is the first NCD-SSB.

[0216] In this application, when the second communication device enhances paging, the first NCD-SSB, the second NCD-SSB, and the CD-SSB can be in the synchronization signal block set as follows: Figure 4 As shown. The first NCD-SSB can be a new set of NCD-SSBs configured separately by the second communication device in the synchronization signal block set. The first NCD-SSB has a different transmission power and transmission period than the ordinary NCD-SSB (second NCD-SSB). The first NCD-SSB can also be a subset of NCD-SSBs selected by the second communication device from the existing NCD-SSBs in the synchronization signal block set.

[0217] In this application, the period of the synchronization signal block is the interval at which the second communication device sends the synchronization signal block, which can be 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, etc. At each corresponding interval, the second communication device will send a synchronization signal block once so that the first communication device can synchronize.

[0218] In this application, the periods and transmission power of the first NCD-SSB, the second NCD-SSB, and the CD-SSB can be configured by the second communication device. Specifically, the transmission power of the first NCD-SSB is greater than that of other types of SSBs in the synchronization signal block set; that is, the transmission power of the first NCD-SSB is greater than that of the second NCD-SSB / CD-SSB. The periods of the NCD-SSB and the CD-SSB are different, and the transmission power of the second NCD-SSB (ordinary NCD-SSB) is the same as that of the CD-SSB.

[0219] S302. The second communication device sends a first message, and correspondingly, the first communication device receives the first message from the second communication device.

[0220] In this application, the step of the second communication device sending the first message in S302 is the same as in S202, and will not be described again here.

[0221] S303. The second communication device sends a second message, and correspondingly, the first communication device receives the second message from the second communication device.

[0222] In this application, the second message includes a power offset, which is used to indicate the difference between the transmission power of the first NCD-SSB and the first power; the first communication device can determine the transmission power of the first synchronization signal block based on the first message and the second message.

[0223] In this application, when the first synchronization signal block is the first NCD-SSB, the first communication device can add the first power and the power offset to obtain the transmission power of the first synchronization signal block.

[0224] Optionally, if the second communication device does not use enhanced paging, i.e., the first synchronization signal block is another SSB, the first communication device can directly use the first power as the transmission power of the first synchronization signal block.

[0225] In this application, the NCD-SSB is configured by the second communication device using UE-level signaling. Therefore, when the first communication device is an older version of the terminal equipment, it cannot receive the NCD-SSB; that is, the older terminal equipment cannot support enhanced paging by the network equipment, nor can it interpret the meaning of the power offset in the second message. Therefore, by setting the power offset and the first synchronization signal block during enhanced paging as the first NCD-SSB, the path loss in calculating the transmission power of older terminal equipment using an incorrect first synchronization signal block can be avoided, thus improving the accuracy of the communication system.

[0226] S304. The first communication device calculates the path loss.

[0227] In this application, the step of calculating path loss by the first communication device in S304 is the same as that in S203, and will not be repeated here.

[0228] In this possible embodiment, the second communication device configures a specific NCD-SSB as the SSB for enhanced paging, and sends a second message to enable the first communication device to calculate the transmission power of the SSB used for enhanced paging based on the power offset therein. This allows the first communication device to accurately calculate the path loss during enhanced paging, thereby obtaining an appropriate uplink transmission power based on the path loss. This improves the stability of the communication system, enhances communication quality, and increases the resource utilization and capacity of the entire system.

[0229] In one possible embodiment, if the first synchronization signal block is a CD-SSB, such as Figure 5 As shown, the communication method provided in this application embodiment may further include:

[0230] S501. The second communication device sends a first synchronization signal block, and correspondingly, the first communication device receives the first synchronization signal block from the second communication device.

[0231] The first synchronization signal block is CD-SSB. When the first synchronization signal block is the synchronization signal block sent by the second communication device during paging enhancement, the schematic diagram of the first synchronization signal block in the synchronization signal block set can be shown as follows. Figure 6 As shown. The second communication device can select a synchronization signal block within the beam range corresponding to the location of the first communication device, and enhance the transmission power of the synchronization signal block, thereby making the transmission power of the first synchronization signal block greater than that of other synchronization signal blocks.

[0232] S502. The second communication device sends a first message, and correspondingly, the first communication device receives the first message from the second communication device.

[0233] In this application, if the first synchronization signal block is a CD-SSB, the first message also includes a second power, which is the transmission power of the synchronization signal block when the second communication device performs enhanced paging, and the first power is less than the second power.

[0234] In this application, the first communication device will also receive instruction information from the second communication device; wherein, the instruction information is used to indicate whether the first synchronization signal block is in power enhancement mode, if the first synchronization signal block is in power enhancement mode, then the transmission power of the first synchronization signal block is the second power; if the first synchronization signal block is not in power enhancement mode, then the transmission power of the first synchronization signal block is the first power.

[0235] In this application, the power enhancement mode refers to the second communication device increasing the transmission power of the first synchronization signal block. If the first synchronization signal block is not in power enhancement mode, then the transmission power of the first synchronization signal block is the same as the transmission power of other synchronization signal blocks in the synchronization signal block set, i.e., the first power.

[0236] In this application, the instruction information may be carried in at least one of the main system message MIB, broadcast message SIB1, and specific system message.

[0237] S503. The first communication device calculates the path loss.

[0238] In this application, the step of calculating path loss by the first communication device in S503 is the same as that in S203, and will not be repeated here.

[0239] In this possible embodiment, the second communication device indicates one or more synchronization signal blocks in the synchronization signal block set as synchronization signal blocks for enhanced paging, and by adding the transmission power magnitude during normal paging and the transmission power magnitude during enhanced paging to the first message, the first communication device can select the correct transmission power to calculate path loss based on whether the first synchronization signal block is in power enhancement mode, thereby selecting an appropriate uplink transmission power and improving the stability and accuracy of the communication system.

[0240] In one possible embodiment, if the first synchronization signal block is carried on the first channel, the first message also includes the transmission power difference between the first channel and the channels of the other synchronization signal blocks in the synchronization signal block set.

[0241] In this application, the second communication device can achieve enhanced paging by transmitting a first synchronization signal block in the first channel. That is, when the first communication device receives a signal from the first channel, it can determine that the second communication device is using enhanced paging, and calculate the transmission power of the first synchronization signal block based on the transmission power difference in the first message.

[0242] In this possible embodiment, the second communication device can be configured to use a new channel specifically for transmitting synchronization signals for enhanced paging, and the transmission power of this channel is greater than that of the channels of other synchronization signal blocks, thereby reducing the impact on ordinary synchronization signal blocks used for normal paging and improving the stability and accuracy of the communication system.

[0243] In one possible embodiment, the method further includes: a first communication device receiving a third message from a second communication device; wherein the third message is used to indicate the power level of a first synchronization signal block; and determining the transmission power of the first synchronization signal block based on the power level and the first message.

[0244] In this application, the power level of the first synchronization signal block may include multiple levels, each corresponding to a different transmission power. For example, the second communication device may indicate the power level through a power offset, such as power level 1, power level 2, and power level 3.

[0245] The power offset is different for each power level. The power offset is the difference between each power level and the first power. When the second communication device sends a paging message using normal paging and does not receive a paging response from the first communication device, the second communication device can re-paging using power level 1.

[0246] In this application, the second communication device can also directly indicate the power level by defining the transmission power of each power level.

[0247] In this application, the second communication device may send a third message through at least one of the main system message MIB, broadcast message SIB1, and specific system message, without limitation.

[0248] Alternatively, the power level can also be indicated by the characteristics of the channel itself that transmits the first synchronization block. For example, a higher-power channel is used to transmit the first synchronization block for enhanced paging and / or the channel that transmits the synchronization block for enhanced paging has a longer period.

[0249] In this possible embodiment, the second communication device indicates the power level of the first synchronization signal block through a third message, and the power level indication method is flexible, enabling the first communication device to obtain the correct transmission power of the synchronization signal block to calculate the path loss, thereby selecting an appropriate uplink transmission power and improving the stability and accuracy of the communication system.

[0250] In one possible embodiment, the method further includes: a first communication device sending first information to a second communication device; wherein the first information includes a measurement result of a first synchronization signal block, a paging mode of the first synchronization signal block, and / or a power mode of the first synchronization signal block, which is the same as the power mode of the synchronization signal block corresponding to the first information and the power mode of the first synchronization signal block.

[0251] In this application, the measurement results of the first synchronization signal block include at least one of the following: reference signal received power, reference signal received quality, and synchronization signal block signal-to-interference-plus-noise ratio.

[0252] In this application, the paging modes of the first synchronization signal block include a normal paging mode and an enhanced paging mode. In the normal paging mode, the transmission power of the first synchronization signal block is relatively low; in the enhanced paging mode, the transmission power of the first synchronization signal block is relatively high. That is, the transmission power of the first synchronization signal block in the enhanced paging mode is greater than the transmission power of the first synchronization signal block in the normal paging mode.

[0253] In this application, the power mode of the first synchronization signal block corresponds to the paging mode of the first synchronization signal block, and may include an enhanced power mode and a normal power mode. The transmission power of the first synchronization signal block in the enhanced power mode is greater than the transmission power of the first synchronization signal block in the normal power mode.

[0254] In this application, the power mode of the synchronization signal block used by the first communication device to report the measurement results of the first synchronization signal block to the second communication device is the same as the power mode of the first synchronization signal block. That is, when the first synchronization signal block is a synchronization signal block sent by the second communication device during normal paging, the first communication device selects to use a synchronization signal block with a transmission power of the first power to send the measurement results of the first synchronization signal block; when the first synchronization signal block is a synchronization signal block sent by the second communication device during enhanced paging, the first communication device selects to use a synchronization signal block with a transmission power of the second power (or the first power plus a power offset) to send the measurement results of the first synchronization signal block.

[0255] In this application, after receiving the measurement results of the first synchronization signal block, the second communication device can evaluate the cell where the first communication device is located based on the measurement results, thereby helping the first communication device select the best cell for communication and improving the communication quality of the communication system. Furthermore, the second communication device can understand the channel quality status for communication with the first communication device based on the measurement results, and flexibly adjust the communication resources allocated to the first communication device based on the channel quality status, thereby improving the resource utilization rate of the communication system.

[0256] In this possible embodiment, the first communication device reports the signal quality of the first synchronization signal block, and the power mode of the synchronization signal block used for reporting is the same as the power mode of the measured synchronization signal block. This enables the second communication device to understand the measurement feedback of the first communication device, avoids confusion of measurement results due to the existence of multiple synchronization signal blocks with different power modes, and improves the accuracy of the measurement results.

[0257] In one possible embodiment, the method further includes: sending second information to a second communication device; wherein the second information includes the measurement result of a first synchronization signal block; before sending the second information to the second communication device, if the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the measurement result of the first synchronization signal block is converted into the measurement result of the synchronization signal block corresponding to the first information according to the power mode.

[0258] In this application, the first communication device can report the measurement results of the first synchronization signal block using synchronization signal blocks with different power modes. If the first synchronization signal block is sent during enhanced paging (i.e., the power mode of the first synchronization signal block is enhanced power mode), and the reported synchronization signal block is sent during normal paging (i.e., the power mode of the reported synchronization signal block is normal power mode), then the first communication device can convert the measurement results of the first synchronization signal block into the results of normal paging.

[0259] That is, the transmission power of the first synchronization signal block is converted into the transmission power of the reported synchronization signal block by converting the measurement result of the first synchronization signal block into the equivalent transmission power of the reported synchronization signal block.

[0260] Optionally, when the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the second information may also include the measurement result of the first synchronization signal block and the access information (transmission power or paging mode) of the reported synchronization signal block. After receiving the second information, the second communication device can perform an equivalent conversion on the measurement result of the first synchronization signal block to obtain the measurement result corresponding to the reported synchronization signal block.

[0261] Optionally, the second information may also include both the measurement results of the first synchronization signal block and the measurement results obtained by conversion with a different power mode than the first synchronization signal block. The second communication device can evaluate the channel quality based on the measurement results obtained with the two different power modes.

[0262] In this possible embodiment, the first communication device can perform an equivalent conversion of the measurement results based on the power mode of the measured synchronization signal block and the power mode of the reported synchronization signal block, thereby eliminating the need to report the power mode of the first synchronization signal block during reporting and improving the flexibility of reporting the measurement results of the first synchronization signal block.

[0263] The communication system and communication method in the embodiments of this application have been described above. The communication device provided in the embodiments of this application will be described below.

[0264] Please see Figure 7 This application provides an O-RAN system architecture. This system can implement the functions of the first or second communication device in the above method embodiments, and therefore also achieves the beneficial effects of the above method embodiments.

[0265] As shown in the figure, the access network equipment (RAN, such as eNB, gNB, or next-generation access network equipment) communicates with the core network (CN) through the backhaul link and with the user equipment (UE) through the air interface.

[0266] Specifically, the baseband unit (BBU) in the access network equipment communicates with the core network via a backhaul link, and the radio unit (RU) in the access network equipment communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link. The BBU and RU may or may not be co-located.

[0267] The BBU includes at least one control unit (CU) and at least one distributed unit (DU), which can communicate via at least one midhaul link.

[0268] Please see Figure 8 This application provides another O-RAN system architecture.

[0269] In some examples, the CU is a logical node carrying the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network equipment. The CU connects to network nodes such as the core network through interfaces, which can be interfaces such as E2 interfaces. Optionally, the CU may have some core network functions. The CU (e.g., PDCP layer and higher layers) connects to the DU (e.g., RLC layer and lower layers) through interfaces, which can be interfaces such as F1 interfaces. In some examples, these interfaces (e.g., F1 interfaces) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, defining the F1 signaling procedures in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0270] In some examples, the CU can be split into CU-CP (control unit-control plane) and CU-UP (control unit-user plane). CU-CP is a logical node carrying the RRC layer and PDCP-C (control plane part of PDCP) layer, used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the SDAP layer and PDCP-U (user plane part of PDCP) layer, used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the UPF (User Plane Function) in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above CU and DU configurations are merely examples; the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements, such as by latency. Functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0271] In some examples, a DU is a logical node that carries the radio link control (RLC) layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces.

[0272] In some examples, the CU may not have a PDCP layer, i.e., it only includes the RRC layer. CU-CP does not have PDCP-C. CU-UP may not have PDCP-U, or may not have CU-UP at all. In some examples, the DU may not have an RLC layer, only a MAC and a higher PHY layer. Furthermore, in some examples, it may not have a CU and may only include the DU.

[0273] In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation. In some examples, the RU is a logical node carrying both lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Low-PHY includes the PHY processing, such as fast fourier transform (FFT), inverse fast fourier transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0274] The DU and RU can be co-located or separate. The DU and RU exchange control plane and user plane information via a lower-layer Split CUS-Plane (LLS-CUS) interface through a fronthaul link. LLS-CUS may include LLS-C and LLS-U interfaces providing the control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU. The DU and RU can cooperate to implement PHY layer functions. A DU can be connected to one or more RUs. The functions of the DU and RU can be configured in various ways depending on the design. For example, the DU may be configured to implement baseband functions, and the RU may be configured to implement mid-frequency functions. For example, DU is configured to implement higher-level functions in the PHY layer, and RU is configured to implement lower-level functions in the PHY layer, or to implement both lower-level functions and RF functions. Higher-level functions in the physical layer may include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer may include another portion of the physical layer's functions that are closer to the mid-RF side.

[0275] Please see Figure 9 This application provides a communication device 900, which can realize the functions of the first or second communication device in the above method embodiments, and thus also achieve the beneficial effects of the above method embodiments. In this application embodiment, the communication device 900 can be the first or second communication device, or it can be an integrated circuit or component inside the first or second communication device, such as a chip, baseband chip, modem chip, SoC chip (e.g., an SoC chip containing a modem core), SIP chip, communication module, chip system, processor, etc.

[0276] It should be noted that the transceiver unit 902 can also be called a transceiver module, which may include a sending unit (also called a sending module) and / or a receiving unit (also called a receiving module), which are used to perform the sending and receiving operations in the embodiment, respectively.

[0277] In one possible implementation, when the device 900 is for performing Figure 2When the method executed by the first communication device in the relevant embodiments is described, the device 900 includes a processing unit 901 and a transceiver unit 902; the transceiver unit 902 is used to receive a first synchronization signal block from the second communication device; wherein, the first synchronization signal block is included in a set of synchronization signal blocks, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; the transceiver unit 902 is also used to receive a first message from the second communication device; wherein, the first message includes a first power, the first power being the transmission power of the second communication device when it performs normal paging, and the first message is used to determine the transmission power of the first synchronization signal block; the processing unit 901 is used to calculate path loss based on the transmission power and the reception power of the first synchronization signal block; the path loss is used to adjust the uplink transmission power of the first communication device.

[0278] In one possible implementation, when the device 900 is for performing Figure 2 When the method executed by the second communication device in the relevant embodiments is used, the device 900 includes a processing unit 901 and a transceiver unit 902; the transceiver unit 902 is used to send a first synchronization signal block to the first communication device; wherein, the first synchronization signal block is included in the synchronization signal block set, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; the transceiver unit 902 is also used to send a first message to the first communication device; wherein, the first message includes a first power, the first power is the transmission power of the second communication device when it performs normal paging, the first message is used to determine the transmission power of the first synchronization signal block, the transmission power of the first synchronization signal block and the reception power of the first synchronization signal block are used to calculate the path loss, and the path loss is used to adjust the uplink transmission power of the first communication device.

[0279] In one possible design, when the communication device 900 is a terminal device or a communication module within a terminal, the function of the processing unit 901 can be implemented by one or more processors. Specifically, the processor may include a modem chip, a SoC chip (such as a SoC chip containing a modem core), or a SIP chip. The function of the transceiver unit 902 can be implemented by transceiver circuitry.

[0280] In one possible design, when the communication device 900 is a circuit or chip in a terminal responsible for communication functions, such as a modem chip, a SoC chip, or a SoC chip or SIP chip containing a modem core, the function of the processing unit 901 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver unit 902 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0281] It should be noted that the information execution process of the unit of the above-mentioned communication device 900 can be specifically described in the method embodiment shown above in this application, and will not be repeated here.

[0282] Please see Figure 10 This is another schematic structural diagram of the communication device 10000 provided in this application. The communication device 10000 includes a logic circuit 1001 and an input / output interface 1002. The communication device 10000 can be a chip or an integrated circuit.

[0283] in, Figure 9 The transceiver unit 902 shown can be a communication interface, which can be... Figure 10 The input / output interface 1002 may include an input interface and an output interface. Alternatively, the communication interface may also be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0284] In one possible implementation, when the device 10000 is used for execution Figure 2 When the method executed by the first communication device in the relevant embodiments is performed, the input / output interface 1002 is used to receive a first synchronization signal block from the second communication device; wherein, the first synchronization signal block is included in the synchronization signal block set, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; the input / output interface 1002 is also used to receive a first message from the second communication device; wherein, the first message includes a first power, the first power is the transmission power of the synchronization signal block when the second communication device performs normal paging, and the first message is used to determine the transmission power of the first synchronization signal block; the logic circuit 1001 is used to calculate the path loss based on the transmission power and the reception power of the first synchronization signal block; the path loss is used to adjust the uplink transmission power of the first communication device.

[0285] In one possible implementation, when the device 10000 is used for execution Figure 2When the second communication device executes the method in the relevant embodiments, the input / output interface 1002 is used to send a first synchronization signal block to the first communication device; wherein, the first synchronization signal block is included in the synchronization signal block set, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; the input / output interface 1002 is also used to send a first message to the first communication device; wherein, the first message includes a first power, the first power is the transmission power of the synchronization signal block when the second communication device performs normal paging, the first message is used to determine the transmission power of the first synchronization signal block, the transmission power of the first synchronization signal block and the reception power of the first synchronization signal block are used to calculate the path loss, and the path loss is used to adjust the uplink transmission power of the first communication device.

[0286] The logic circuit 1001 and the input / output interface 1002 can also perform other steps performed by the first or second communication device in any embodiment and achieve corresponding beneficial effects, which will not be elaborated here.

[0287] In one possible implementation, Figure 9 The processing unit 901 shown can be Figure 10 The logic circuit 1001 in the middle.

[0288] Optionally, the logic circuit 1001 can be a processing device, the functions of which can be partially or entirely implemented in software.

[0289] Optionally, the processing apparatus may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory to perform the corresponding processing and / or steps in any of the method embodiments.

[0290] Optionally, the processing device may consist of only a processor. Memory for storing computer programs is located outside the processing device, and the processor is connected to the memory via circuitry / wires to read and execute the computer programs stored in the memory. The memory and processor may be integrated together or physically independent.

[0291] Optionally, the processing device may be one or more chips, or one or more integrated circuits. For example, the processing device may be one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system on-chips (SoCs), central processing units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic controllers (PLDs), or other integrated chips, or any combination of the above chips or processors.

[0292] Please see Figure 11 The communication device 1100 mentioned in the above embodiments provided for the purposes of this application can specifically be the communication device serving as a terminal device in the above embodiments. Figure 11 The example shown illustrates how a terminal device can be implemented through a terminal device (or a component within a terminal device).

[0293] The present invention provides a possible logical structure diagram of the communication device 1100, which may include, but is not limited to, at least one processor 1101 and a communication port 1102.

[0294] in, Figure 9 The transceiver unit 902 shown can be a communication interface, which can be... Figure 11 The communication port 1102 may include an input interface and an output interface. Alternatively, the communication port 1102 may also be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0295] Further optionally, the device may also include at least one of a memory 1103 and a bus 1104. In the embodiments of this application, the at least one processor 1101 is used to control the operation of the communication device 1100.

[0296] Furthermore, the processor 1101 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, etc. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0297] It should be noted that, Figure 11 The communication device 1100 shown can be used to implement the steps implemented by the terminal device in the aforementioned method embodiments, and to achieve the corresponding technical effects of the terminal device. Figure 11 The specific implementation of the terminal device shown can be referred to the description of the first or second communication device in the foregoing method embodiments, and will not be repeated here.

[0298] Please see Figure 12 The above-described embodiments of the communication device 1200, provided as an example of the present application, are structural schematic diagrams. Specifically, the communication device 1200 can be a network device as described in the above embodiments. Figure 12 The example shown illustrates a network device implemented through a network device (or a component within a network device). The structure of this communication device can be referenced. Figure 12 The structure shown.

[0299] The communication device 1200 includes at least one processor 1211 and at least one network interface 1214. Optionally, the communication device further includes at least one memory 1212, at least one transceiver 1213, and one or more antennas 1215. The processor 1211, memory 1212, transceiver 1213, and network interface 1214 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited thereto. The antenna 1215 is connected to the transceiver 1213. The network interface 1214 enables the communication device to communicate with other communication devices through a communication link. For example, the network interface 1214 may include a network interface between the communication device and core network equipment, such as an S1 interface; the network interface may also include a network interface between the communication device and other communication devices (e.g., other network devices or core network equipment), such as an X2 or Xn interface.

[0300] in, Figure 9The transceiver unit 902 shown can be a communication interface, which can be... Figure 12 The network interface 1214 may include an input interface and an output interface. Alternatively, the network interface 1214 may also be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0301] The processor 1211 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process data from the software programs, for example, to support the communication device in performing the actions described in the embodiments. The communication device may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, while the central processing unit is mainly used to control the entire terminal device, execute software programs, and process data from the software programs. Figure 12 The processor 1211 can integrate the functions of a baseband processor and a central processing unit. Those skilled in the art will understand that the baseband processor and the central processing unit can also be independent processors interconnected via technologies such as buses. Those skilled in the art will understand that a terminal device can include multiple baseband processors to adapt to different network standards, and a terminal device can include multiple central processing units to enhance its processing capabilities. The various components of the terminal device can be connected via various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. The central processing unit can also be described as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in memory as a software program, with the processor executing the software program to implement the baseband processing function.

[0302] The memory is primarily used to store software programs and data. The memory 1212 can exist independently or be connected to the processor 1211. Optionally, the memory 1212 can be integrated with the processor 1211, for example, integrated within a single chip. The memory 1212 can store program code that executes the technical solutions of the embodiments of this application, and its execution is controlled by the processor 1211. The various types of computer program code being executed can also be considered as drivers for the processor 1211.

[0303] Figure 12 Only one memory and one processor are shown. In actual terminal devices, there may be multiple processors and multiple memories. Memory can also be called storage medium or storage device, etc. Memory can be a storage element on the same chip as the processor, i.e., an on-chip storage element, or it can be a separate storage element; this application does not limit this.

[0304] Transceiver 1213 can be used to support the reception or transmission of radio frequency signals between a communication device and a terminal. Transceiver 1213 can be connected to antenna 1215. Transceiver 1213 includes a transmitter Tx and / or a receiver Rx. Specifically, one or more antennas 1215 can receive radio frequency signals. The receiver Rx of transceiver 1213 is used to receive the radio frequency signals from the antennas, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to processor 1211 so that processor 1211 can perform further processing on the digital baseband signals or digital intermediate frequency signals, such as demodulation and decoding. In addition, the transmitter Tx in transceiver 1213 is also used to receive the modulated digital baseband signals or digital intermediate frequency signals from processor 1211, convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through one or more antennas 1215. Specifically, the receiver Rx can selectively perform one or more stages of downmixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency (IF) signal. The order of these downmixing and IF conversion processes is adjustable. The transmitter Tx can selectively perform one or more stages of upmixing and digital-to-analog conversion on the modulated digital baseband signal or digital IF signal to obtain a radio frequency signal. The order of these upmixing and IF conversion processes is also adjustable. The digital baseband signal and the digital IF signal can be collectively referred to as digital signals.

[0305] The transceiver 1213 can also be called a transceiver unit, transceiver, transceiver device, etc. Optionally, the device in the transceiver unit that performs the receiving function can be regarded as the receiving unit, and the device in the transceiver unit that performs the transmitting function can be regarded as the transmitting unit. That is, the transceiver unit includes a receiving unit and a transmitting unit. The receiving unit can also be called a receiver, input port, receiving circuit, etc., and the transmitting unit can be called a transmitter, transmitter, or transmitting circuit, etc.

[0306] It should be noted that, Figure 12 The communication device 1200 shown can be used to implement the steps implemented by the network device in the aforementioned method embodiments, and to achieve the corresponding technical effects of the network device. Figure 12 The specific implementation of the communication device 1200 shown can be referred to the description of the first or second communication device in the foregoing method embodiments, and will not be repeated here.

[0307] This application also provides a computer-readable storage medium for storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor performs the method described in the possible implementations of the first or second communication device in the foregoing embodiments.

[0308] This application also provides a computer program product (or computer program) that, when executed by a processor, executes the method described above for the possible implementation of the first or second communication device.

[0309] This application also provides a chip system including at least one processor for supporting a communication device in implementing the functions involved in the possible implementations of the communication device described above. Optionally, the chip system further includes an interface circuit that provides program instructions and / or data to the at least one processor. In one possible design, the chip system may also include a memory for storing the program instructions and data necessary for the communication device. The chip system may be composed of chips or may include chips and other discrete devices, wherein the communication device may specifically be the first communication device or the second communication device in the aforementioned method embodiments.

[0310] This application also provides a communication system, which includes the first communication device in any of the above embodiments.

[0311] Optionally, the communication system may also include a second communication device.

[0312] In the 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, indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms. Whether a function is implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0313] 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.

[0314] Furthermore, 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. The integrated unit can be implemented in hardware or as a software functional unit. If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A communication method, said method being applied to a first communication device, characterized in that, The method includes: Receive a first synchronization signal block from a second communication device; wherein the first synchronization signal block is included in a set of synchronization signal blocks, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; Receive a first message from the second communication device; wherein the first message includes a first power, the first power being the transmission power of the synchronization signal block when the second communication device performs normal paging, and the first message is used to determine the transmission power of the first synchronization signal block; The path loss is calculated based on the transmit power and receive power of the first synchronization signal block; the path loss is used to adjust the uplink transmit power of the first communication device.

2. The method according to claim 1, characterized in that, The synchronization signal block set includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is an NCD-SSB, then the NCD-SSB in the synchronization signal block set includes a first NCD-SSB and a second NCD-SSB. The transmission power of the second NCD-SSB is the same as that of the CD-SSB, and the transmission power of the first NCD-SSB is greater than that of the CD-SSB. The first synchronization signal block is the first NCD-SSB.

3. The method according to claim 2, characterized in that, Before calculating the path loss based on the transmit power and receive power of the first synchronization signal block, the method further includes: Receive a second message from the second communication device; wherein the second message includes a power offset, the power offset being used to indicate the difference between the transmission power of the first NCD-SSB and the first power; The transmission power of the first synchronization signal block is determined based on the first message and the second message.

4. The method according to claim 1, characterized in that, The set of synchronization signal blocks includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is CD-SSB, the first message also includes a second power, which is the transmission power of the synchronization signal block when the second communication device performs enhanced paging. The first power is less than the second power.

5. The method according to claim 4, characterized in that, Before calculating the path loss based on the transmit power and receive power of the first synchronization signal block, the method further includes: The device receives instruction information from the second communication device; wherein the instruction information is used to indicate whether the first synchronization signal block is in power enhancement mode; if the first synchronization signal block is in power enhancement mode, the transmission power of the first synchronization signal block is the second power; if the first synchronization signal block is not in power enhancement mode, the transmission power of the first synchronization signal block is the first power.

6. The method according to claim 5, characterized in that, The indication information is carried in at least one of the main system message MIB, broadcast message SIB1, and specific system message.

7. The method according to any one of claims 1-6, characterized in that, The position of the first synchronization signal block in the set of synchronization signal blocks is determined based on the location of the first communication device.

8. The method according to claim 1, characterized in that, If the first synchronization signal block is carried on the first channel, the first message also includes the transmission power difference between the first channel and the channels of the other synchronization signal blocks in the set of synchronization signal blocks.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: Receive a third message from the second communication device; wherein the third message is used to indicate the power level of the first synchronization signal block; The transmission power of the first synchronization signal block is determined based on the power level and the first message.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: Send first information to the second communication device; wherein the first information includes the measurement result of the first synchronization signal block, the paging mode of the first synchronization signal block and / or the power mode of the first synchronization signal block, which is the same as the power mode of the synchronization signal block corresponding to the first information and the power mode of the first synchronization signal block.

11. The method according to any one of claims 1-9, characterized in that, The method further includes: Send second information to the second communication device; wherein the second information includes the measurement result of the first synchronization signal block; Before sending the second information to the second communication device, if the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the measurement result of the first synchronization signal block is converted into the measurement result of the synchronization signal block corresponding to the first information according to the power mode.

12. A communication method, said method being applied to a second communication device, characterized in that, The method includes: Send a first synchronization signal block to the first communication device; wherein, the first synchronization signal block is included in the synchronization signal block set, and the first synchronization signal block is used for the first communication device to synchronize with the second communication device when the second communication device performs normal paging or enhanced paging; Send a first message to the first communication device; wherein the first message includes a first power, the first power being the transmission power of the synchronization signal block when the second communication device performs normal paging, the first message being used to determine the transmission power of the first synchronization signal block, the transmission power of the first synchronization signal block and the reception power of the first synchronization signal block being used to calculate path loss, the path loss being used to adjust the uplink transmission power of the first communication device.

13. The method according to claim 12, characterized in that, The synchronization signal block set includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is an NCD-SSB, then the NCD-SSB in the synchronization signal block set includes a first NCD-SSB and a second NCD-SSB. The transmission power of the second NCD-SSB is the same as that of the CD-SSB, and the transmission power of the first NCD-SSB is greater than that of the CD-SSB. The first synchronization signal block is the first NCD-SSB.

14. The method according to claim 13, characterized in that, The method further includes: Send a second message to the first communication device; wherein the second message includes a power offset, the power offset being used to indicate the difference between the transmission power of the first NCD-SSB and the first power, and the first message and the second message being used to determine the transmission power of the first synchronization signal block.

15. The method according to claim 12, characterized in that, The set of synchronization signal blocks includes NCD-SSB and / or CD-SSB. If the first synchronization signal block is CD-SSB, the first message also includes a second power, which is the transmission power of the synchronization signal block when the second communication device performs enhanced paging. The first power is less than the second power.

16. The method according to claim 15, characterized in that, The method further includes: Send indication information to the first communication device; wherein the indication information is used to indicate whether the first synchronization signal block is in power enhancement mode; if the first synchronization signal block is in power enhancement mode, the transmission power of the first synchronization signal block is the second power; if the first synchronization signal block is not in power enhancement mode, the transmission power of the first synchronization signal block is the first power.

17. The method according to claim 16, characterized in that, The indication information is carried in at least one of the main system message MIB, broadcast message SIB1, and specific system message.

18. The method according to any one of claims 12-17, characterized in that, The position of the first synchronization signal block in the set of synchronization signal blocks is determined based on the location of the first communication device.

19. The method according to claim 12, characterized in that, If the first synchronization signal block is carried on the first channel, the first message also includes the transmission power difference between the first channel and the channels of the other synchronization signal blocks in the set of synchronization signal blocks.

20. The method according to any one of claims 12-19, characterized in that, The method further includes: A third message is sent to the first communication device; wherein the third message is used to indicate the power level of the first synchronization signal block, and the power level and the first message are used to determine the transmission power of the first synchronization signal block.

21. The method according to any one of claims 12-20, characterized in that, The method further includes: Receive first information from the first communication device; wherein the first information includes the measurement result of the first synchronization signal block, the paging mode of the first synchronization signal block and / or the power mode of the first synchronization signal block, which is the same as the power mode of the synchronization signal block corresponding to the first information and the power mode of the first synchronization signal block.

22. The method according to any one of claims 12-20, characterized in that, The method further includes: Receive second information from the first communication device; wherein the second information includes the measurement result of the first synchronization signal block; Before receiving the second information from the first communication device, if the power mode of the synchronization signal block corresponding to the first information is different from the power mode of the first synchronization signal block, the power mode is further used by the first communication device to convert the measurement result of the first synchronization signal block into the measurement result of the synchronization signal block corresponding to the first information.

23. A communication device, characterized in that, Includes at least one processor; The at least one processor is configured to execute computer programs or instructions to enable the communication device to implement the method as described in any one of claims 1 to 22.

24. The communication device according to claim 23, characterized in that, The communication device further includes a memory; The processor is coupled to the memory; The memory is used to store the computer program or instructions.

25. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed, cause the method described in any one of claims 1 to 22 to be performed.

26. A computer program product, characterized in that, When the program instructions are run on a computer, the computer causes the computer to perform the method as described in any one of claims 1 to 22.

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