Information transmission method and communication device

Abstract

The invention discloses an information transmission method and a communication device, which can enable a network side to determine when a terminal can carry out service transmission and avoid influencing the service transmission. The method comprises the steps that a first device receives a first signal on a first link and receives data through a second link of the first device after a first time point. Wherein the first time point is determined according to the maximum value of the number of candidate repeated transmissions according to the first signal.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and in particular to an information transmission method and a communication device. BACKGROUND

[0002] The 3rd generation partnership project (3GPP) protocol introduces technologies such as wakeup radio (WUR) and carrier aggregation. A first link (for example, a low power wakeup receiver (LP-WUR) or a primary cell (Pcell)) of a terminal can listen to a signal from a network side, so that a second link (for example, a main receiver (MR) or a secondary cell (Scell)) of the terminal can perform service transmission, such as uplink transmission or downlink reception.

[0003] However, the current 3GPP protocol does not specify a mechanism for the network side, such as an access network device, to determine when the terminal can perform service transmission. SUMMARY

[0004] The information transmission method and the communication device provided by the embodiments of the present application can enable the network side to determine when the terminal can perform service transmission, thereby avoiding affecting service transmission.

[0005] To achieve the above object, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, an information transmission method is provided. The method can be applied to a first device, such as a terminal or a communication module in the terminal, or a circuit or chip (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core) responsible for communication functions in the terminal. Taking the case where the method is applied to the first device, the method includes: receiving, by the first device, a first signal at a first link, and receiving, by the first device, data through a second link of the first device after a first time point. The first time point is determined according to a maximum value of a candidate number of repeated transmissions of the first signal.

[0007] Since in the embodiments of the present application, after receiving the first signal, the first device can determine that data can be received through the second link after the first time point, which is determined according to the maximum value of the candidate repetition transmission number of the first signal, thereby enabling the network side (such as the access network device) to determine when the second link can perform service transmission, avoiding affecting service transmission.

[0008] In a possible implementation, before the first device receives the first signal on the first link, the method provided in the first aspect further includes: performing, by the first device, physical downlink control channel (PDCCH) monitoring on the second link according to a monitoring occasion (MO) corresponding to a first search space set group (SSSG) in a plurality of SSSGs associated with the first bandwidth part (BWP), and starting a first timer, a switching time of the first SSSG being determined according to a time length of the first timer; in a case where the first device stops performing PDCCH monitoring on the second link, the first device stops or suspends the first timer. That is, in a case where the first device stops performing PDCCH monitoring on the second link, the first timer is stopped or suspended, so as to synchronize the timing of the first timer between the first device and the network side (such as the access network device), avoiding the synchronization of the switching time of the first SSSG due to the unsynchronized timing of the first timer.

[0009] In a possible implementation, the first device receives data through the second link after the first time point includes: performing, by the first device, PDCCH monitoring on the second link according to a MO corresponding to a second SSSG in the plurality of SSSGs associated with the first BWP after the first time point. That is, in a case where the first device stops performing PDCCH monitoring according to the first SSSG and data is received through the second link, the first device can switch the first SSSG to the second SSSG, and the flexibility of switching the first SSSG based on the first timer can be improved.

[0010] In a possible implementation, the method provided in the first aspect further includes: starting, by the first device, a second timer after the first time point, a switching time of the second SSSG being determined according to a time length of the second timer. That is, in a case where the first device performs PDCCH monitoring according to the MO corresponding to the second SSSG after the first time point, the first device can start the second timer for switching the second SSSG, so as to keep synchronization with the second timer of the network side (such as the access network device), avoiding the synchronization of the switching time of the second SSSG of the two.

[0011] In a possible implementation, the first device receives data through the second link of the first device after the first time point, including: the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the first time point. That is, in the case that the first device stops PDCCH monitoring or sending according to the first SSSG and the second link receives data by receiving the first signal, the first device can continue to perform PDCCH monitoring or sending using the first SSSG, reducing the impact of SSSG switching based on the first device on service transmission.

[0012] In a possible implementation, the first device stops the first timer; the method provided in the first aspect further includes: the first device resets the first timer after the first time point. That is, in the case that the first device performs PDCCH monitoring according to the MO corresponding to the first SSSG after the first time point, the first device can reset the first timer after the first time point, and then determine the switching time of the first SSSG according to the reset first timer, so as to keep synchronization with the first timer of the network side (for example, the access network device), and avoid the switching time of the first SSSG of the two sides out of synchronization.

[0013] In a possible implementation, the first device suspends the first timer; the method provided in the first aspect further includes: the first device resumes the first timer after the first time point. That is, in the case that the first device performs PDCCH monitoring according to the MO corresponding to the first SSSG after the first time point, the first device can resume the first timer after the first time point, and then determine the switching time of the first SSSG according to the resumed first timer, so as to reduce the impact on the first timer. In addition, it is convenient to keep synchronization with the first timer of the network side (for example, the access network device), and avoid the switching time of the first SSSG of the two sides out of synchronization.

[0014] In a possible implementation, the first device receives data through the second link of the first device after the first time point, including: the first device performs PDCCH monitoring on the second link according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the second time point, and the second time point is determined according to the first time point and the BWP switching delay of switching from the first BWP to the second BWP. That is, in the case that the first device stops PDCCH monitoring according to the first SSSG and the second link receives data by receiving the first signal, the first device can switch the first SSSG associated with the first BWP to the SSSG associated with the second BWP, and perform PDCCH monitoring after the second time point, so as to make the first device and the second device match the MO corresponding to the SSSG associated with the second BWP after switching.

[0015] In a second aspect, a method for information transmission is provided. The method can be applied to a second device, for example, an access network device at a network side, a module (for example, a circuit, a chip, or a chip system, etc.) in the access network device, or a logic node, a logic module, or software capable of implementing all or part of the functions of the access network device. Taking the method applied to the second device as an example, the method comprises: the second device sending a first signal and sending data after a first time point. The first time point is determined according to a maximum value of a candidate number of repeated transmissions of the first signal.

[0016] The beneficial effects of the second aspect can be referred to the first aspect, which will not be repeated here.

[0017] In a possible implementation, before the second device sends the first signal, the method provided by the second aspect further comprises: the second device performing physical downlink control channel (PDCCH) transmission according to a monitoring occasion (MO) corresponding to a first search space set group (SSSG) in a plurality of SSSGs associated with a first bandwidth part (BWP); and the second device sending the data after the first time point, comprising: the second device performing PDCCH transmission according to an MO corresponding to any one of the following SSSGs after the first time point: the first SSSG, a second SSSG in the plurality of SSSGs associated with the first BWP, or a SSSG in a plurality of SSSGs associated with a second BWP. That is, in the case where the second device is configured to switch SSSG listening for PDCCH based on a timer, and the second device sends the first signal for causing the second link to receive data, the second device can determine to perform PDCCH transmission according to the agreed SSSG after the first time point, so that the second device can determine when the second link can receive PDCCH and the SSSG used, so as to match the MO at which the first device listens to PDCCH and the occasion at which the second device sends PDCCH.

[0018] In a possible implementation, the method provided by the second aspect further comprises: in the case where the second device performs PDCCH transmission according to the MO corresponding to the first SSSG, the second device starts a first timer, and the switching occasion of the first SSSG is determined according to a time length of the first timer; and in the case where the second device sends second indication information, the second device stops or suspends the first timer, and the second indication information is used to indicate to stop listening to PDCCH transmission. That is, the second device can indicate the terminal side (for example, the first device) to stop listening to PDCCH transmission by sending the second indication information, and stop or suspend the first timer, so as to synchronize the timing of the first timer between the first device and the second device, and avoid the synchronization of the switching occasion of the first SSSG due to the unsynchronized timing of the first timer.

[0019] In a possible implementation, the second device stops the first timer, and the second device performs PDCCH transmission according to the MO corresponding to the first SSSG after the first time point; the method provided in the second aspect further includes: the second device resets the first timer after the first time point. That is, in the case of performing PDCCH transmission according to the MO corresponding to the first SSSG after the first time point, the second device can reset the first timer after the first time point, and then determine the switching time of the first SSSG according to the reset first timer, so as to keep synchronization with the first device on the terminal side (for example, the first timer), and avoid that the switching times of the first SSSGs of the two are out of synchronization.

[0020] In a possible implementation, the second device suspends the first timer, and the second device performs PDCCH transmission according to the MO corresponding to the first SSSG after the first time point; the method provided in the second aspect further includes: the second device resumes the first timer after the first time point. That is, in the case of performing PDCCH transmission according to the MO corresponding to the first SSSG after the first time point, the second device can resume the first timer after the first time point, and then determine the switching time of the first SSSG according to the resumed first timer, so as to reduce the influence on the first timer. In addition, it is convenient to keep synchronization with the first device on the terminal side (for example, the first timer), and avoid that the switching times of the first SSSGs of the two are out of synchronization.

[0021] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the second SSSG after the first time point; the method provided in the second aspect further includes: the second device starts the second timer after the first time point, and the switching time of the second SSSG is determined according to the time length of the second timer. That is, in the case of performing PDCCH transmission according to the MO corresponding to the second SSSG after the first time point, the second device can start the second timer for switching of the second SSSG, so as to keep synchronization with the second device on the terminal side (for example, the first device), and avoid that the switching times of the second SSSGs of the two are out of synchronization.

[0022] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the first time point, including: the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the second time point, the second time point being determined according to the first time point and the BWP switching delay of switching from the first BWP to the second BWP. That is, in the case where the second device stops performing PDCCH transmission according to the first SSSG and indicates that the second link receives data by sending the first signal, the second device can switch the first SSSG associated with the first BWP to the SSSG associated with the second BWP, and perform PDCCH transmission after the second time point, so as to make the terminal side (for example, the first device) and the second device match the MO corresponding to the SSSG associated with the switched second BWP.

[0023] In a third aspect, an information transmission method is provided, which can be applied to a first device, for example, a terminal or a communication module in the terminal, or a circuit or chip responsible for communication function in the terminal (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core). Taking the case where the method is applied to the first device, the method includes: the first device performs physical downlink control channel (PDCCH) listening on a second link of the first device according to a monitoring occasion (MO) corresponding to a first search space set group (SSSG) in a plurality of SSSGs associated with a first bandwidth part (BWP); in the case where the first device stops PDCCH listening on the second link and a first link of the first device receives a first signal, the first signal is used to wake up PDCCH listening on the second link, and the first device sends first indication information through the second link, the first indication information being used to indicate that the second link is woken up; and the first device performs PDCCH listening on the second link according to the MO corresponding to any one of the following SSSGs after a third time point: the first SSSG, a second SSSG in the plurality of SSSGs associated with the first BWP, or a SSSG in the plurality of SSSGs associated with a second BWP; wherein the third time point is determined according to the time of transmitting the first indication information.

[0024] In the embodiments of the present application, when the first device stops PDCCH monitoring according to the SSSG on the second link, and receives the indication information for waking up PDCCH monitoring on the second link through the first link, the first device sends the indication information to the network side (for example, the access network device) to indicate that the second link is woken up, and then the first device and the network side can determine to perform PDCCH transmission according to the agreed SSSG after the third time point, so that the first device and the network side can determine when the second link can perform service transmission and the SSSG used after waking up, so that the MO of the first device for monitoring PDCCH matches the timing of the network side for sending PDCCH.

[0025] In a possible implementation, the method provided by the third aspect further includes: in a case where the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG, the first device starts a first timer, and the switching time of the first SSSG is determined according to the time length of the first timer; and in a case where the first device stops PDCCH monitoring on the second link, the first device stops or suspends the first timer. That is, in a case where the first device stops PDCCH monitoring on the second link, the first device stops or suspends the first timer, so that the first device and the network side (for example, the access network device) are synchronized in timing with respect to the first timer, and the switching time of the first SSSG is prevented from being unsynchronized.

[0026] In a possible implementation, the first device stops the first timer, and the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the third time point; the method provided by the third aspect further includes: the first device resets the first timer after the third time point. That is, in a case where the first device performs PDCCH monitoring according to the MO corresponding to the first SSSG after the third time point, the first device can reset the first timer after the third time point, and then determine the switching time of the first SSSG according to the reset first timer, so as to keep the first timer synchronized with the network side (for example, the access network device), and prevent the switching time of the first SSSG from being unsynchronized.

[0027] In a possible implementation, the first device suspends the first timer, and the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the third time point; the method provided in the third aspect further includes: the first device resumes the first timer after the third time point. That is, in the case of performing PDCCH monitoring according to the MO corresponding to the first SSSG after the third time point, the first device can resume the first timer after the third time point, and then determine the switching time of the first SSSG according to the resumed first timer, so that the influence on the first timer can be reduced. In addition, it is convenient to keep the first timer synchronized with the network side (for example, the access network device), and avoid that the switching times of the first SSSGs of the two are out of synchronization.

[0028] In a possible implementation, the first device performs PDCCH monitoring on the second link according to the MO corresponding to the second SSSG after the third time point; the method provided in the third aspect further includes: the first device starts the second timer after the third time point, and the switching time of the second SSSG is determined according to the time length of the second timer. That is, in the case of performing PDCCH monitoring according to the MO corresponding to the second SSSG after the third time point, the first device can start the second timer for switching of the second SSSG, so as to keep the second timer synchronized with the network side (for example, the access network device), and avoid that the switching times of the second SSSGs of the two are out of synchronization.

[0029] In a possible implementation, the first device performs PDCCH monitoring on the second link according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the third time point, including: the first device performs PDCCH monitoring on the second link according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the fourth time point, and the fourth time point is determined according to the third time point and a BWP switching delay of switching from the first BWP to the second BWP. That is, in the case that the first device stops performing PDCCH monitoring according to the first SSSG, and the second link receives data by receiving the first signal, the first device can switch the first SSSG associated with the first BWP to the SSSG associated with the second BWP, and perform PDCCH monitoring after the fourth time point, so that the first device and the network side (for example, the access network device) can match the MO corresponding to the switched SSSG associated with the second BWP.

[0030] In a fourth aspect, a method for information transmission is provided. The method can be applied to a second device, which can be, for example, an access network device at a network side, a module (e.g., a circuit, a chip, or a chip system, etc.) in the access network device, or a logic node, a logic module, or software capable of implementing all or part of the functions of the access network device. Taking the method as applied to the second device as an example, the method includes: performing, by the second device, PDCCH transmission according to a monitoring occasion (MO) corresponding to a first SSSG in a plurality of SSSGs associated with a first bandwidth part (BWP); sending, by the second device, a first signal, the first signal being used to wake up PDCCH transmission on a second link; receiving, by the second device, first indication information, the first indication information being used to indicate that the second link is woken up; and performing, by the second device, PDCCH transmission according to a MO corresponding to any one of the following SSSGs after a third time point: the first SSSG, a second SSSG in the plurality of SSSGs associated with the first BWP, or a SSSG in a plurality of SSSGs associated with a second BWP; wherein the third time point is determined according to a time of transmitting the first indication information.

[0031] In a possible implementation, the method provided in the fourth aspect further includes: in a case where the second device performs PDCCH transmission according to the MO corresponding to the first SSSG, starting, by the second device, a first timer, and a switching occasion of the first SSSG being determined according to a time length of the first timer; and in a case where the second device sends second indication information, stopping or suspending, by the second device, the first timer, and the second indication information being used to indicate that PDCCH transmission is stopped.

[0032] In a possible implementation, the second device stops the first timer, and the second device performs PDCCH transmission according to the MO corresponding to the first SSSG after the third time point; and the method provided in the fourth aspect further includes: resetting, by the second device, the first timer after the third time point.

[0033] In a possible implementation, the second device suspends the first timer, and the second device performs PDCCH transmission according to the MO corresponding to the first SSSG after the third time point; and the method provided in the fourth aspect further includes: resuming, by the second device, the first timer after the third time point.

[0034] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the second SSSG after the third time point; and the method provided in the fourth aspect further includes: starting, by the second device, a second timer after the third time point, and a switching occasion of the second SSSG being determined according to a time length of the second timer.

[0035] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP at a third time point, including: the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP at a fourth time point, the fourth time point being determined according to the third time point and a BWP switching delay of switching from the first BWP to the second BWP.

[0036] The beneficial effects of the fourth aspect and any implementation thereof can be referred to the beneficial effects of the third aspect and any implementation thereof, which will not be repeated here.

[0037] In the fifth aspect, the present application provides a communication device, which has the function of implementing the first aspect, for example, the communication device includes a module or unit or means corresponding to the operation of any of the above aspects, which can be implemented by software, or by hardware, or by software and hardware.

[0038] In the sixth aspect, the present application provides a communication device, which includes an interface circuit and one or more processors. The one or more processors can execute the computer program or instructions, which, when executed, cause the communication device to implement the method in any possible design or implementation manner in any of the above aspects. The interface circuit is used to realize the communication function within the communication device and / or the communication function of the communication device with other devices or components.

[0039] In a possible design, the processor is configured to communicate with other devices or components through the interface circuit.

[0040] In a possible design, the communication device can further include the memory.

[0041] The communication device can be a terminal, a communication module in the terminal, or a chip responsible for the communication function such as a modem chip (also known as a baseband chip) or an SoC or SIP chip containing a modem module; or the communication device can be an access network device on the network side, a module (such as a circuit, a chip or a chip system, etc.) in the access network device, or a logic node, a logic module or software that can realize all or part of the function of the access network device.

[0042] In the seventh aspect, a computer readable storage medium is provided, which stores computer programs or instructions, when running on a communication device, causes the communication device to perform the method in any of the above aspects or any implementation manner thereof.

[0043] In an eighth aspect, a computer program product containing instructions, which, when executed on a communication device, enable the communication device to carry out the method according to any one of the preceding aspects or any implementation thereof.

[0044] In a ninth aspect, a communication system is provided, the communication system comprising: the first device and the second device according to any one of the preceding aspects or any implementation thereof.

[0045] In a tenth aspect, a communication method is provided, the communication method comprising: the method according to any one of the preceding aspects or any implementation thereof.

[0046] The technical effects brought by any one of the fifth aspect to the tenth aspect can be referred to the technical effects brought by different design manners of any one of the preceding aspects, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is a working state schematic diagram of an LP-WUR provided by an embodiment of the present application;

[0048] Figure 2 is a MO time domain position schematic diagram provided by an embodiment of the present application;

[0049] Figure 3 is a schematic diagram of determining MO based on SS set provided by an embodiment of the present application;

[0050] Figure 4 is a schematic diagram of a terminal listening PDCCH based on SSSG provided by an embodiment of the present application;

[0051] Figure 5 is a possible, non-limiting system schematic diagram provided by an embodiment of the present application;

[0052] Figure 6 is a flow schematic diagram of an information transmission method provided by an embodiment of the present application Figure 1 ;

[0053] Figure 7 is a schematic diagram of determining a first time point provided by an embodiment of the present application;

[0054] Figures 8-9 is a schematic diagram of listening PDCCH based on a first timer and a first SSSG provided by an embodiment of the present application;

[0055] Figure 10 is a schematic diagram of switching a second SSSG by a first SSSG provided by an embodiment of the present application;

[0056] Figure 11 is a flow schematic diagram of an information transmission method provided by an embodiment of the present applicationFigure 2 ;

[0057] Figure 12 is a communication device structure schematic diagram provided by an embodiment of the present application;

[0058] Figure 13 is a terminal structure schematic diagram provided by an embodiment of the present application. DETAILED DESCRIPTION

[0059] To facilitate understanding of the technical solutions provided by the embodiments of the present application, first, a brief introduction of the related technologies of the present application is given. The brief introduction is as follows:

[0060] First, the wakeup radio (WUR):

[0061] Since the new radio (NR) system supports a larger transmission bandwidth, more transceiver antenna arrays, higher transmission rates, etc. compared to the long term evolution (LTE) system, the power consumption of the terminal will be increased. In order to reduce the terminal power consumption of the NR system, the 3rd generation partnership project (3GPP) introduces the WUR technology.

[0062] The WUR technology refers to that the receiver of the terminal can be logically and / or physically divided into two types: a main receiver (MR) and a low power wakeup radio receiver (LP-WUR). Among them, in the case that the MR is in a sleep state (or called sleep mode), the LP-WUR of the terminal is in an open state and listens to a wakeup signal (such as a low power wakeup signal (LP-WUS)) from the network side (such as a radio access network (RAN) device), and then wakes up the MR according to the indication of the wakeup signal.

[0063] Figure 1 is a working state schematic diagram of the LP-WUR provided by an embodiment of the present application. As shown in Figure 1 , the receiver of the terminal can be in two states: state 1 and state 2. State 1 means that the LP-WUR is in an open state and the MR is in a sleep state. State 2 means that the MR is in an open state and can listen to data (such as including service data, signaling, or signals, etc.) from the network side. Among them, in state 2, the working state of the LP-WUR is not limited, for example, the LP-WUR can be in an open state, or in a closed state, or in other similar sleep state working states.

[0064] It is understood that the above-mentioned state 1 and state 2 can be converted to each other. Figure 1 As shown, in state 1, the LP-WUR receives the LP-WUS for instructing to wake up the MR, and the receiver of the terminal enters state 2 from state 1, that is, the MR enters the on state from the sleep state. In state 2, when the MR meets the triggering conditions, the receiver of the terminal enters state 1 from state 2, that is, the MR enters the sleep state from the on state, and the LP-WUR is in the on state. Among them, the triggering conditions may include, for example: the MR enters the idle state after completing data transmission and reception, or other terminal energy-saving mechanisms (such as discontinuous reception (DRX), power saving mode (PSM), or the corresponding sleep state under the terminal-initiated connection only (MICO)) mechanism, or the network side instructs the MR to enter the sleep state, etc., and the embodiments of the present application do not make specific limitations on this.

[0065] It should be understood that the above Figure 1 In state 1, the MR may also be in a shutdown state, or other low-power consumption state where it does not monitor a specific channel or signal, which is not specifically limited in the embodiment of the present application.

[0066] The following introduces the downlink signal, MR, and LP-WUR in the above WUR respectively.

[0067] 1.1. Downward signal in WUR:

[0068] It should be understood that the WUR includes at least a wake-up signal, which can be used to wake up the MR of a specific terminal or the MR of a group of terminals. In addition, the wake-up signal can be used to trigger the terminal to perform operations such as updating system messages, receiving paging information, initiating random access, or receiving disaster warning information, which is not specifically limited in the embodiments of the present application.

[0069] 1.2、MR and LP-WUR:

[0070] MR can also be called the main link (main radio, MR), communication main module, main circuit, etc., and LP-WUR can also be called the wake-up link, auxiliary link, communication auxiliary module, wake-up circuit, auxiliary circuit, etc. The embodiments of this application do not make specific limitations on this.

[0071] For example, the MR can include a medium radio frequency module and a baseband processing module, and the LP-WUR can be a simple receiver including only the medium radio frequency module. For another example, the LP-WUR can use a lower power consumption module (the rate and bandwidth of the LP-WUS signal are much lower than the data of the normal NR, and a low power consumption module can be used), so that the working power consumption of the LP-WUR is much lower than that of the MR, for example, the power consumption of the LP-WUR in the working state is only one tenth or less of the average power consumption of the MR in the idle mode.

[0072] For example, the LP-WUR can use some lower power consumption radio frequency circuits and baseband circuits. For example, the LP-WUR can include a ring oscillator without a phase lock loop (PLL), and / or a low noise amplifier (LNA) with a higher noise coefficient. For another example, the LP-WUR can also be a sub-module (i.e., a partial module) of the MR. For another example, the LP-WUR and the MR multiplex some circuitry, devices, etc. For another example, compared with the main receiver, the LP-WUR includes fewer devices or supports fewer functions when working, for example, the LP-WUR does not include a fast Fourier transform module, a complex channel decoding module, a low density parity check code (LDPC) decoding module, or a polar decoding module, etc., and can have fewer registers and memory units, use a lower bandwidth bus, and thus the power consumption of the LP-WUR is lower than that of the MR.

[0073] In addition, the MR in a low power consumption working mode can also be considered as the LP-WUR, for example, when the MR reduces the working voltage, turns off some high power consumption functions, slows down the clock frequency, or reduces the sampling rate and bit width of the analog-to-digital sampling, it is the LP-WUR.

[0074] To facilitate understanding of the embodiments of the present application, the time-frequency resources of the NR system are introduced below.

[0075] Second, time-frequency resources:

[0076] The time-frequency resource can include a time domain resource and a frequency domain resource. To meet the demand of communication traffic, in the frequency domain, the NR system can support a larger frequency range (frequency range, FR) and system bandwidth. For example, for a low frequency band below 6 GHz, such as FR1 (410 MHz-7125 MHz), the maximum system bandwidth supported by the NR system is 100 MHz. For example, for a high frequency band above 6 GHz to millimeter wave band, such as FR2 including FR2-1 (24250 MHz-52600 MHz) and FR2-2 (52600 MHz-71000 MHz), the maximum system bandwidth supported by the NR system is 400 MHz. It can be understood that in addition to the above FR1, FR2, and FR2-2, the FR can also be other frequency ranges supported in future next-generation communication systems (for example, a sixth-generation (6th generation, 6G) communication system), and the embodiments of the present application do not make specific limitations.

[0077] In addition, the time domain resource and the frequency domain resource are related to the transmission scheme of the NR system. The uplink transmission scheme and the downlink transmission scheme of the NR system can use orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) technology, and the minimum frequency domain resource in the NR system can be 1 subcarrier, and the minimum time domain resource can be 1 OFDM symbol.

[0078] It can be understood that any two subcarriers within an OFDM symbol are orthogonal, and the duration of the OFDM symbol (i.e., the OFDM symbol length) is inversely proportional to the subcarrier spacing (subcarrier space, SCS). The subcarrier is located in the carrier operated by the NR system, and the number of subcarriers is determined by the subcarrier spacing (subcarrier space, SCS) and the system bandwidth corresponding to the carrier.

[0079] In addition, due to the complexity of the wireless channel, a multipath effect will be generated, which will cause inter-symbol interference. The OFDM symbol is generated by adding a cyclic prefix (cyclic prefix, CP), which is equivalent to inserting a guard interval between different OFDM symbols, thereby reducing inter-symbol interference. The CP can include a normal CP and an extended CP.

[0080] It should be understood that the NR system can configure different SCSs to adapt to the different FRs described above. For example, for FR1 of a low frequency band, a smaller SCS is used to avoid too large time domain overhead of the CP. For example, for FR2 of a high frequency band, a larger SCS is used to avoid a larger inter-carrier interference caused by a Doppler frequency offset of the high frequency band.

[0081] For example, a set of transmission parameters supported by the NR system is shown in Table 1. In Table 1, the first column is a specific value of the SCS configuration μ, the second column is a specific value of the SCS, and the third column is a specific type of the CP.

[0082] Table 1

[0083] μ Δf = 2 μ · 15 [kHz]] CP 0 15 Normal CP 1 30 Normal CP 2 60 Normal CP, extended CP 3 120 Normal CP 4 240 Normal CP

[0084] For example, for SCS of 15 kHz, the OFDM symbol time length can be about 66.67 μs; for SCS of 30 kHz, the OFDM symbol time length can be about 33.33 μs; for SCS of 60 kHz, the OFDM symbol time length can be about 16.67 μs; for SCS of 120 kHz, the OFDM symbol time length can be about 8.88 μs; and for SCS of 240 kHz, the OFDM symbol time length can be about 4.17 μs.

[0085] It should be understood that the time lengths of the normal CP and the extended CP can be specified in the 3GPP related protocols, which will not be described herein.

[0086] In addition, Table 1 is only an example, and the SCS configuration μ can also take values of 5 (SCS of 480 kHz) or 6 (SCS of 960 kHz), which are not limited in the embodiments of the present application.

[0087] The time domain resources will be described in detail below according to the related configurations of the SCS.

[0088] 2.1, Time domain resources:

[0089] It should be understood that in the time domain, the NR system can perform transmission in units of radio frames (or frames). The frame can include a plurality of subframes, and each subframe can include a plurality of slots, i.e., the NR system can include time domain resources of different granularities such as frames, subframes, slots, and OFDM symbols.

[0090] For example, the duration of each frame is 10 ms. Each frame can be composed of 10 subframes with a duration of 1 ms. The 10 subframes within a frame can be arranged sequentially. For example, the 10 subframes within a frame can be arranged in ascending chronological order as: subframe #0 to subframe #9. For another example, the 10 subframes can be arranged in descending chronological order as: subframe #9 to subframe #0. The embodiments of the present application do not specifically limit the subframe sorting method.

[0091] In addition, the above subframe numbers are only exemplary. For example, the numbering may start with 1. For example, 10 subframes in a frame may be represented as: subframe #1 to subframe #10.

[0092] It can be understood that for SCS configuration μ, time slots can be numbered in ascending order within a subframe. Arrange, and can be numbered in ascending order within a frame In a time slot there are consecutive OFDM symbols, It is related to the CP type used by OFDM symbols. As shown in Table 2, no matter how many SCSs there are, a time slot includes 14 OFDM symbols. As can be seen from Table 3, when the SCS is 60kHz, one time slot includes 12 OFDM symbols.

[0093] In addition, the time slot in a subframe The time domain starting position of the OFDM symbol in the same subframe The time domain starting positions of OFDM symbols are aligned. For example, when a time slot includes 14 OFDM symbols, the OFDM symbols can be sorted in ascending time order as: OFDM symbol #0 to OFDM symbol #13, where the time domain starting position of OFDM symbol #0 is the same as the time domain starting position of the time slot.

[0094] Table 2

[0095]

[0096] Table 3

[0097]

[0098] It should be understood that Table 2 and Table 3 are only examples. For example, if μ is 5, a subframe includes 32 time slots; for another example, if μ is 6, a subframe includes 64 time slots. The embodiments of the present application do not specifically limit this.

[0099] In addition, in the service scheduling, the granularity (or scheduling unit) of the scheduling can be a time slot or a mini time slot. The time length of the mini time slot can be a part of OFDM symbols in a time slot, for example, the time length of a downlink mini time slot can be 2, 4, or 7 OFDM symbols, and the time length of an uplink mini time slot can be any time length within 1-14 OFDM symbols.

[0100] It should be understood that, for the convenience of description, the OFDM symbol is described as a symbol below, and the following description is uniform.

[0101] The frequency domain resource will be specifically introduced below.

[0102] 2.2, Frequency domain resource:

[0103] It can be understood that, according to the foregoing description of the OFDM, the minimum granularity of the frequency domain resource is one subcarrier, and the number of subcarriers can measure the size of the frequency domain resource. In the NR system, the frequency domain resource can be divided into a resource element (RE), a resource block (RB), and a bandwidth part (BWP).

[0104] For RE: one subcarrier in the frequency domain and one symbol in the time domain can be defined as an RE. The RE is the minimum granularity of the physical layer resource.

[0105] For RB: in the frequency domain, no matter the subcarrier spacing is, 12 consecutive subcarriers can be defined as one RB. The larger the SCS is, the larger the actual bandwidth corresponding to one RB is. It should be understood that, in the physical layer, the RB can be referred to as a physical resource block (PRB).

[0106] For BWP: considering the limitation of terminal capability and the demand of energy saving, the NR system allows the terminal to work in a part of the system bandwidth, i.e. BWP. Alternatively, the BWP can be a part of the bandwidth in a carrier corresponding to a cell supported by the system. For example, a cell covered by the network side (e.g. the next-generation radio access network (NG-RAN) in the NR system) supports two carriers (carrier #1 and carrier #2), the cell allocates 40MHz bandwidth to carrier #1 and 60MHz bandwidth to carrier #2, and the BWP can be 20MHz bandwidth in the 40MHz bandwidth corresponding to carrier #1, and the terminal can only work in the BWP. It can be understood that a BWP can include multiple RBs, i.e. the size of the BWP can be measured by the number of RBs. It can also be understood that the size of the frequency domain resource can also be represented by the bandwidth, for example, for SCS of 15 kHz, the bandwidth of an RB is 12*15 kHz = 180 kHz.

[0107] It should be understood that in the NR system, after the terminal accesses the network through the initial access process, the network can configure the working BWP for the terminal through high layer signaling, each terminal can be configured with 1-4 BWPs, but only one BWP is activated at any time. Except for radio resource management (RRM) measurement, the terminal only transmits and receives data on the activated BWP.

[0108] It can be understood that in order to enable the terminal to transmit and receive data on different BWPs at different times according to the service transmission demand, the NR system supports triggering the terminal to switch the activated BWP by using the downlink control information (DCI) for scheduling data.

[0109] For example, the DCI for scheduling data can be referred to as scheduling DCI, which can be DCI format 1_1 for scheduling the terminal to receive the physical downlink shared channel (PDSCH), or DCI format 0_1 for scheduling the terminal to transmit the physical uplink shared channel (PUSCH). In addition, after receiving the above-mentioned scheduling DCI, the terminal switches the current activated BWP to the BWP indicated by the DCI, and transmits and receives data on the BWP indicated by the scheduling DCI.

[0110] In the above-mentioned BWP switching of the terminal, at least the following operations need to be performed:

[0111] ①, the terminal receives and analyzes the BWP switching indication in the DCI;

[0112] ②, the terminal switches the operating frequency band of its radio frequency device to the new BWP, including center frequency switching, or sampling rate switching, etc.

[0113] ③, the terminal applies the configuration parameters on the new BWP and transmits and receives data.

[0114] It should be understood that a certain processing delay is required to complete the above operations, which is referred to as BWP switching delay T BWPswitc h Delay Specifically, if the terminal receives the scheduling DCI for indicating switching the BWP on the nth time slot, the terminal should have the capability of transmitting and receiving data on the switched BWP on the n+T BWPswitc h Delay time slot.

[0115] In addition, according to the different terminal capabilities, the NR system defines two different types of BWP switching delays. For example, as shown in Table 4, the BWP switching delay types include type 1 and type 2. Among them, the BWP switching delay corresponding to type 1 is smaller than that corresponding to type 2. In addition, the terminal can report to the network side whether the terminal supports the BWP switching delay type as type 1 or type 2, so as to facilitate the network side to schedule.

[0116] Table 4

[0117]

[0118] It should be understood that Table 4 is only an example, and the SCS configuration μ can also take other group values such as 4 or 5, and the embodiments of the present application do not make specific limitations thereto.

[0119] Third, scheduling and search space set (SS set):

[0120] The NR system can schedule PDSCH and PUSCH through DCI carried on the physical downlink control channel (PDCCH). The DCI contains scheduling information, which is used to indicate the transmission time, occupied frequency resources, and used modulation and coding format parameters of PDSCH or PUSCH.

[0121] Wherein, the terminal can monitor the PDCCH according to a monitoring occasion (MO). The MO is a time at which the PDCCH can be transmitted. Specifically, the MO is generally periodic, and the MO can be represented by a period, a time offset in each period, and a time length. Wherein, the time offset in each period can be, for example, the number of time units by which the time domain starting position of the MO is offset relative to the starting position of a plurality of time units (such as subframes, slots, or symbols, etc.) corresponding to the period.

[0122] Figure 2 is a schematic diagram of a MO time domain position provided by an embodiment of the present application. As shown in Figure 2 , the period of the MO is 2 slots, the time offset of the MO in each period is 1 slot, and the time length of the MO is 2 symbols. Wherein, since the period of the MO is 2 slots, the MO will occur once every 2 slots. In addition, since the time offset is 1 slot, the time domain position at which the MO occurs is the latter slot (i.e. slot 1, slot 3, etc.) in every 2 slots, and the 2 symbols occupied by the MO can be the first 2 symbols (i.e. symbol 0 and symbol 1) in the 14 symbols included in the slot.

[0123] It should be understood that the period, time offset, and time length of the MO described above can be configured by the SS set of the PDCCH. Wherein, the SS set can be configured by high layer signaling of the network side (such as radio resource control (RRC) signaling), and the terminal monitors the PDCCH on the downlink active BWP according to the SS set. In addition, for one downlink active BWP, the terminal can be configured with multiple SS sets, and each SS set can include at least one of the following parameters:

[0124] a. SS set index, used to identify the SS set;

[0125] b. Control resource set (CORESET) index associated with the SS set, the CORESET represents a set of time-frequency resources for carrying the PDCCH, and a CORESET is composed of a plurality of continuous or non-continuous RBs in the frequency domain and 1-3 continuous symbols in the time domain;

[0126] c. PDCCH monitoring period Ks and time offset Os, the values of Ks and Os can be slots;

[0127] d. Intra-slot PDCCH monitoring pattern (or intra-slot PDCCH monitoring symbol) is used to indicate the starting symbol of the CORESET in a slot, in addition, the CORESET can have multiple starting symbols in a slot;

[0128] e. Duration Ts is used to indicate the number of consecutive slots in which the SS set exists, where Ts < Ks, and the default value of Ts is 1 slot.

[0129] It can be understood that according to the configuration of the SS set, the terminal can determine the MO of monitoring the PDCCH, and the following will be described in combination with Figure 3 Further description of the configuration of the SS set.

[0130] Figure 3 is a schematic diagram provided by an embodiment of the present application for determining the MO based on the configuration of the SS set. As shown in Figure 3 , the configuration of the SS set is that the period Ks is 4 slots, the time offset Os is 0, and Ts is 1, and then the MO appears in the first slot in every 4 slots, for example Figure 3 slot 0 and slot 5 in . In addition, the CORESET associated with the SS set configuration is 3 symbols, and the time domain starting position is symbol 0, and then the MO occupies the first to third symbols of the first slot in every 4 slots, for example, the MO occupies Figure 3 symbol 0 to symbol 2 of slot 0 in .

[0131] It can be understood that if the MO of the PDCCH is relatively dense (for example, the period of the SS set is 1 slot), the terminal needs to monitor the PDCCH in every slot, and then once there is data transmission, the network side can quickly schedule the terminal, which is beneficial to reduce the transmission delay of service data, but the frequent monitoring of the PDCCH by the terminal will waste the power consumption of the terminal. If the period of the SS set is relatively large, the MO of the PDCCH is relatively sparse, which can reduce the power consumption of the terminal, but will increase the transmission delay of the service data.

[0132] Based on the above problems, the plurality of SS sets configured by the downlink active BWP can be divided into a plurality of search space set groups (SSSGs), for example, 2 SSSGs, 3 SSSGs, or more SSSGs. For example, taking the case of dividing the plurality of SS sets into two SSSGs (namely, SSSG0 and SSSG1), through the configuration information of the SS set, it can be indicated whether the SS set belongs to SSSG0 or SSSG1. In addition, the 3GPP protocol allows an SS set to belong to both SSSG0 and SSSG1, for example, the plurality of SS sets are: SS set1~3, SSSG0 includes SS set1 and SS set2, and SSSG1 includes SS set1 and SS set3.

[0133] It can be understood that, since the dilution degrees of the MOs for monitoring the PDCCH are different between different SSSGs in the plurality of SSSGs, through switching between the plurality of SSSGs, the terminal power consumption can be reduced on the basis of guaranteeing the transmission delay of the service data.

[0134] The principle of reducing the terminal power consumption by the SSSG will be specifically explained below in combination with Figure 4 .

[0135] Figure 4 is a schematic diagram of the terminal monitoring the PDCCH based on the SSSG provided by an embodiment of the present application. As shown in Figure 4 , the network side configures 4 SS sets for the terminal, which are SS set1, SS set2, SS set3, and SS set4, the MOs for monitoring the PDCCH are different between SS set1~4, and the dilution degrees are also different. Among them, SS set1 and SS set2 belong to SSSG0, SS set3 and SS set4 belong to SSSG1, and the dilution degree of the MO in SSSG1 is smaller than that in SSSG0.

[0136] As shown in Figure 4 , the terminal monitors the PDCCH based on SSSG0, which is monitored according to SS set1 and SS set2 included in SSSG0, at this time, the MO for monitoring the PDCCH is relatively sparse, and the terminal power consumption can be reduced. In the case of switching SSSG0 to SSSG1, the terminal monitors the PDCCH according to SS set3 and SS set4 included in SSSG1, at this time, the MO is relatively dense, and the transmission delay of the service data can be guaranteed.

[0137] It can be understood that, the terminal monitors the PDCCH according to the switching between SSSG0 and SSSG1, and the terminal power consumption can be reduced on the basis of guaranteeing the transmission delay of the service data.

[0138] In addition, the switching between the above-mentioned SSSG0 and SSSG1 can be automatically switched based on a timer, and a specific example is as follows.

[0139] A. In a case where the terminal is configured with timer-based SSSG switching and starts to monitor PDCCH according to an SSSG with an index not equal to 0, the terminal starts (or restarts) a timer, and when the timer expires (or times out), the terminal switches to SSSG0. For example, when the terminal monitors PDCCH according to SSSG1, it starts timer 1 corresponding to SSSG1, and when timer 1 expires, SSSG1 switches to SSSG0, and the terminal stops monitoring PDCCH according to SSSG1 and starts monitoring PDCCH according to SSSG0.

[0140] B. In a case where the terminal is configured with timer-based SSSG switching and monitors PDCCH according to an SSSG with an index not equal to 0, if the terminal receives PDCCH on the MO corresponding to the SSSG, and the check bits of the PDCCH are scrambled using a cell radio network temporary identifier (RNTI) or a configured scheduling RNTI (CS-RNTI) or a modulation and coding scheme RNTI (MCS-RNTI), the terminal will reset the timer.

[0141] It can be understood that the above-mentioned timer-based automatic switching mode is applicable to switching of an SSSG with an index not equal to 0 to SSSG0 and switching of SSSG0 to an SSSG with an index not equal to 0, which can be based on a condition trigger or a network side indication, and the embodiments of the present application do not make specific limitations thereto. In addition, for switching between multiple SSSGs with indexes not equal to 0, it can also be based on a condition trigger or a network side indication, and the embodiments of the present application do not make specific limitations thereto.

[0142] Based on the above related description, there are two problems in the current NR system.

[0143] Problem 1, for WUR, when the access network device on the network side sends a WUS to the terminal to indicate to wake up the MR, the current NR system does not have a related mechanism to enable the access network device to perceive whether the MR of the terminal is successfully woken up, and the specific time of the MR wake-up, which in turn will affect the scheduling of the access network device to the terminal. For example, assuming that the access network device does not know the specific time of the MR successful wake-up, the access network device may send PDCCH in the case that the MR of the terminal is not successfully woken up, or in the case that the MR of the terminal enters the sleep state again due to the related energy saving mechanism (such as DRX, PSM, or MICO, etc.), thereby causing the terminal to miss the PDCCH, affecting the transmission of the service.

[0144] Problem 2, for timer-based switching SSSG and WUR, in the case that the terminal is configured with timer-based switching SSSG, since the access network device cannot determine the specific time of the MR successful wake-up, it will cause the access network device to be unable to determine when the terminal resets the timer, and in turn will cause the MO of the terminal listening to the PDCCH to not match the timing of the access network device sending the PDCCH, thereby causing the terminal to be unable to correctly receive the PDCCH.

[0145] Based on the above problems, the embodiments of the present application propose the following technical solutions. The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0146] In order to facilitate the understanding of the embodiments of the present application, before introducing the embodiments of the present application, the following points are explained.

[0147] 1. In the embodiments of the present application, for the convenience of description, when referring to numbers or indexes, they can be numbered continuously from 1, or from 0, or from any parameter, and no specific limitation is made to this.

[0148] 2. "Predefined", "predefined", "preconfigured (or preconfigured)", and "protocol agreement" can be mutually replaced expressions, and the predefinition can be realized by pre-saving the corresponding code, table or other means that can be used to indicate the related information in the device (such as terminal or access network device), and the embodiments of the present application do not limit the specific implementation manner. Wherein, "saving" can mean saving in one or more memories.

[0149] 3. The “protocol” involved in the embodiments of the present application may refer to a standard protocol in the field of communications, such as the long term evolution (LTE) protocol, the NR protocol, wireless fidelity (Wi-Fi), and related protocols used in future communication systems (such as 6G communication systems). The embodiments of the present application are not limited to this.

[0150] 4. In the embodiments of the present application, descriptions such as “when…”, “in the case of…”, “if” and “if” all refer to the fact that the device (such as a terminal or access network device) will perform corresponding processing under certain objective circumstances. It does not limit the time, nor does it require the device to perform judgment actions when implementing it, nor does it mean that there are other limitations. In addition, the descriptions of the above-mentioned conditions such as “when…”, “if”, “in the case of…” and “if” can be understood as necessary conditions, and there is no limitation on whether the condition is a sufficient condition or whether it is a necessary and sufficient condition. For example, “in the case of A, execute B” can be understood as “if at least A is satisfied, execute B”.

[0151] 5. In the embodiments of the present application, "sending information" can be understood as one device (or apparatus) sending information to another device (or apparatus), or as one logical module within a device sending information to another logical module. For example, "an access network device sending information" can be understood as an access network device sending information to another device (such as a terminal), or as logical module 1 within an access network device sending information to logical module 2 within the access network device.

[0152] In addition, in the embodiments of the present application, "receiving information" can be understood as one device (or apparatus) receiving information from another device (or apparatus), or it can also be understood as a logic module within a device receiving information from another logic module. For example, "an access network device receiving information" can be understood as the access network device receiving information from another device (such as a terminal), or it can be understood as logic module 1 in the access network device receiving information from logic module 2 in the access network device.

[0153] In addition, "sending information to...(terminal)" can be understood as the destination of the information being the terminal, and may include sending information directly or indirectly to the terminal. "Receiving information from...(access network device)" or "receiving information from...(access network device)" can be understood as the source of the information being the access network device, and may include receiving information directly or indirectly from the access network device. The information may be processed as necessary between the source and destination of the information, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be repeated here.

[0154] 6. In the description of the embodiments of the present application, unless otherwise specified, "and / or" in the embodiments of the present application means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. Also, "at least one of" or the like means any combination of the items, including a single item or a combination of plural items. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the same items or similar items with basically the same functions and effects are distinguished by using "first", "second", and the like. Those skilled in the art can understand that "first", "second", and the like do not limit the quantity and execution order, and "first", "second", and the like do not necessarily mean different. At the same time, in the embodiments of the present application, "exemplary" or "for example" means to serve as an example, illustration, or description.

[0155] The embodiments of the present application can be applicable to an LTE system or an NR system, a system of mixed networking of LTE and NR, a vehicle to everything (V2X) system, a device-to-device (D2D) system, a machine to machine (M2M) communication system, an internet of thing (IoT) system (such as a narrow band internet of thing (NB-IoT) system), a Wi-Fi system, a non-terrestrial network (NTN) system, a 6G system, and other next-generation communication systems, and the like. Alternatively, the communication system can also be an open radio access network (O-RAN or ORAN), or a cloud RAN (CRAN), without limitation.

[0156] It can be understood that the embodiments of the present application can be applied to various services, such as enhanced mobile broadband (eMBB), URLLC, massive machine type communication (mMTC), immersive communication, massive communication, ubiquitous connection, integrated artificial intelligence and communication, or integrated sensing and communication, etc. To meet the further requirements of transmission delay, reliability, coverage, etc. for different services, higher resource utilization is required.

[0157] In addition, the communication architecture and service scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. It can be known by those skilled in the art that, with the evolution of the communication architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0158] Figure 5 is a possible, non-limiting system schematic diagram provided by the embodiments of the present application. As shown in Figure 5 , the communication system 50 includes a RAN 500 and a core network (CN) 600. The RAN 500 includes at least one access network device (such as 510a and 510b in Figure 5 , collectively referred to as 510) and at least one terminal (such as 520a-520j in Figure 5 , collectively referred to as 520). The RAN 500 can also include other access network devices, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 5 ), etc. The terminal 520 is connected to the access network device 510 in a wireless manner. The access network device 510 is connected to the core network 800 in a wireless or wired manner. The core network device in the core network 800 and the access network device 510 in the RAN 500 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the wireless access network.

[0159] The RAN 500 can be a 3GPP related cellular system, e.g., a 4G, 5G mobile communication system, or a future evolution system, e.g., a 6G mobile communication system. The RAN 500 can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (Wi-Fi) system. The RAN 500 can also be a communication system that combines two or more of the above systems.

[0160] The access network devices 510, which can also be referred to as access network devices, RAN nodes, RAN entities, or access nodes, etc., form part of the communication system 500 and can be configured to facilitate wireless access by the terminals 520. The access network devices 510 in the communication system 500 can be nodes of the same type or nodes of different types. In some scenarios, the roles of the access network devices 510 and the terminals 520 are relative, e.g., Figure 5 The intermediate network element 520i can be a drone or a UAV, which can be configured to move as a base station for those terminals 520j that access the RAN 500 via the network element 520i. For the base station 510a, the network element 520i is a terminal. Both the access network devices 510 and the terminals 520 are sometimes referred to as communication apparatuses, e.g., Figure 5 The access network devices 510a and 510b can be understood as communication apparatuses with base station functionality, and the network elements 520a-520j can be understood as communication apparatuses with terminal functionality.

[0161] In a possible scenario, the access network device can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc. The access network device can be a macro base station (e.g., 510a in FIG. 1), a micro base station, or an indoor station (e.g., 510b in FIG. 1), etc. Figure 5 In a possible scenario, the access network device can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc. The access network device can be a macro base station (e.g., 510a in FIG. 1), a micro base station, or an indoor station (e.g., 510b in FIG. 1), etc. Figure 5The access network device can be a base station, a relay node or a donor node, or a radio controller in a CRAN scenario. Optionally, the access network device can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in the V2X technology can be a road side unit (RSU). All or part of the functions of the access network device in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform). The access network device can also be provided with a communication module, circuit or chip for performing corresponding communication functions. The access network device can also be configured with program instructions for performing corresponding communication functions and corresponding program instructions. The network device in the embodiments of the present application can also be a logic node, a logic module or software that can realize all or part of the functions of the access network device.

[0162] In another possible scenario, multiple access network devices cooperate to assist terminals to implement wireless access, and different access network devices respectively implement part of the functions of a base station. For example, the access network device can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU) or a remote radio head (RRH).

[0163] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as O-CU (open CU), the DU can also be referred to as O-DU, the CU-CP can also be referred to as O-CU-CP, the CU-UP can also be referred to as O-CU-UP, and the RU can also be referred to as O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in the present application. Any one of the CU (or CU-CP, CU-UP), DU and RU in the embodiments of the present application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0164] A terminal can be a device or module with corresponding communication functions and can access the above communication system. The terminal can also be referred to as a terminal, terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely applied to various scenarios, such as D2D, V2X communication, MTC, IoT, virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, unmanned aerial vehicle, helicopter, airplane, ship, robot, mechanical arm, smart home device, transport vehicle with wireless communication function, communication module, etc. The embodiments of the present application do not limit the device form of the terminal. The terminal is usually provided with a communication module, circuit or chip for performing corresponding communication functions. The terminal is also configured with program instructions for performing corresponding communication functions.

[0165] For problem 1, the embodiments of the present application provide an information transmission method. Through the method, after receiving a first signal (for example, a WUS for waking up an MR), the access network device and the terminal can determine that data can be received through a second link (for example, a WUR) after a first time point, which is determined according to the maximum value of the candidate repetition transmission number of the first signal, that is, the access network device and the terminal can determine when the MR of the terminal wakes up to perform service transmission, thereby avoiding affecting service transmission.

[0166] For problem 2, the embodiments of the present application provide another information transmission method. Through the method, in the case that the MR of the terminal stops PDCCH monitoring according to the SSSG, and the WUS for waking up the MR is received through the WUR, the terminal sends indication information indicating that the MR is woken up to the access network device, and then the terminal and the access network device can determine to perform PDCCH transmission according to the agreed SSSG after a third time point, so that the terminal and the access network device can determine when the MR wakes up and the SSSG used after waking up, so that the MO of the terminal listening to the PDCCH matches the occasion of the access network device sending the PDCCH.

[0167] The above method provided by the embodiments of the present application will be described below. Figures 6-11 The above method provided by the embodiments of the present application will be described below.

[0168] It should be understood that the names of signals, parameters in signals, or names of information carried by signals between various devices or apparatuses in the following embodiments of the present application are only examples, and other names can also be used in actual implementation, and the embodiments of the present application do not make specific limitations on this. The first device and the second device are taken as the execution subjects of the interaction in the present application, but the present application does not limit the execution subjects of the interaction. For example, the first device in the embodiments of the present application can refer to a terminal itself, or a communication module in the terminal or a circuit or a chip (such as a modem chip (also referred to as a baseband chip), or a SoC chip containing a modem core, or a SIP chip) responsible for a communication function in the terminal. For another example, the second device in the embodiments of the present application can refer to an access network device itself, or a module (such as a circuit, a chip or a chip system, etc.) in the access network device, or a logic node or a logic module capable of implementing all or part of the functions of the access network device.

[0169] Figure 6 is a flowchart of an information transmission method provided by the embodiments of the present application Figure 1 . As shown in Figure 6 , the information transmission method comprises the following steps:

[0170] S601, the second device sends a first signal to the first device. Correspondingly, the first device receives the first signal on a first link.

[0171] It can be understood that the first signal can be a WUS (for example, an LP-WUS) in the foregoing preamble of the specific embodiments, which can be used to wake up a second link of the first device, for example, the WUS can make the second link of the terminal receive data. The second link can be an MR, for example, and the first signal can make the MR enter an open state from a sleep state. In addition, the first device can receive the first signal through the first link, and the first link can be an LP-WUR. The above-mentioned WUS, MR, and LP-WUR can be referred to the related description in the “WUR”, which will not be described here again.

[0172] It should be understood that the first signal can also be other signals in addition to the WUS, for example, in a carrier aggregation (CA) scenario, the first link can be a primary cell (Pcell), the second link can be a secondary cell (Scell), and the first signal can be a signal used to indicate that data is received using the Scell, and the embodiments of the present application do not make specific limitations on this.

[0173] In addition, the second device sending the first signal to the first device can include the second device broadcasting the first signal, and the first device receiving the first signal on the first link. The embodiments of the present application do not limit the manner of the second device sending the first signal.

[0174] S602. The second device sends data to the first device after the first time point. Correspondingly, the first device receives the data from the second device through the second link of the first device after the first time point. The first time point is determined according to the maximum value of the candidate repetition times of the first signal.

[0175] It can be understood that in the embodiments of the present application, the maximum value of the candidate repetition times of the first signal can be agreed by a protocol, or agreed by the first device and the second device in advance, or indicated by the second device, and the embodiments of the present application do not limit this. In addition, repeatedly transmitting the first signal can be used to improve the reliability of the first device receiving the first signal on the first link.

[0176] It should be understood that the indication of the second device can mean that the second device determines the maximum value of the candidate repetition times and indicates it to the first device, or the second device receives an indication of the core network side to determine the maximum value of the candidate repetition times and indicates it to the first device.

[0177] In addition, the "xx information indicated by the second device" referred to below can mean that the second device determines the xx information and indicates it to the first device, or that the second device receives an indication of the core network side to determine the xx information and indicates it to the first device. Here, it is uniformly described below and will not be repeated.

[0178] It should be understood that in the embodiments of the present application, although the maximum value of the candidate repetition times of the first signal is agreed, the number of times the second device actually transmits the first signal can not be the maximum value of the candidate repetition times. For example, the maximum value of the candidate repetition times of the first signal is 10 times, and the second device can not repeatedly transmit the first signal, i.e., actually transmits the first signal 1 time, or the second device actually transmits the first signal 2 times, 3 times, 4 times, or less than 10 times. The second device can specifically determine the number of times the first signal is actually transmitted according to the channel quality, and the embodiments of the present application do not limit this.

[0179] The implementation of determining the first time point according to the maximum value of the candidate repetition times of the first signal will be specifically described below.

[0180] Method one:

[0181] In the first mode, the first device can determine the time of last reception of the first signal according to the maximum value of the candidate repetition number of the first signal, and the time of reception of the first signal according to the first link, which can be taken as the first time point.

[0182] The time of last reception of the first signal is not necessarily the time of actual last reception of the first signal by the first device. For example, assuming that the maximum value of the candidate repetition number of the first signal is 10, the second device actually transmits the first signal for 2 times, the first device actually receives the first signal for the second time, and the time of last reception of the first signal by the first device refers to the time of reception of the first signal for the 10th time. For another example, assuming that the maximum value of the candidate repetition number of the first signal is 10, the second device actually transmits the first signal for 10 times, the first device actually receives the first signal for the fourth time, and the time of last reception of the first signal by the first device refers to the time of reception of the first signal for the 10th time.

[0183] The time of last reception of the first signal can refer to the start time or the end time of the last reception of the first signal, or the time of last reception of the first signal can refer to the start time or the end time of the time unit (for example, a subframe, a time slot, or a symbol) corresponding to the last reception of the first signal.

[0184] It can be understood that the first device determines the time of last reception of the first signal, for example, the first device can take the start time or the end time of reception of the first signal according to the first link as the start, and determine the time of last reception of the first signal according to the maximum value of the candidate repetition number of the first signal. The second device can determine the end time of the first reception of the first signal according to the duration of the first signal. In addition, the duration of the first signal can be agreed by protocol, or negotiated in advance by the first device and the second device, or indicated by the second device, and the embodiments of the present application do not make specific limitation.

[0185] For another example, the first device determines the time of last reception of the first signal, which can be that the first device determines the start time unit of transmission of the first signal according to the time unit of reception of the first signal, and determines the time unit of last reception of the first signal according to the maximum value of the candidate repetition number of the first signal based on the start time unit, and further determines the time of last reception of the first signal.

[0186] It can be understood that in the scenario of poor channel quality, the first device can receive the first signal when the second device transmits the first signal for the third or fourth time. In addition, the time domain resource corresponding to the first signal is configured like the aforementioned "SSset", that is, as shown in Figure 2 and Figure 3 , the first signal occupies a fixed time unit, and thus the starting time unit in which the first signal is transmitted can be determined according to the time unit in which the first signal is received. For example, taking Figure 2 as an example, assuming that the time unit in which the first device receives the first signal is slot 3 in Figure 2 , it can be determined that the starting time unit in which the first signal is transmitted is slot 1. Further, assuming that the maximum number of repeated transmissions of the first signal is 4 times, the time unit in which the first signal is received for the last time is symbol 1 in slot 3.

[0187] For another example, taking Figure 3 as an example, assuming that the time unit in which the first device receives the first signal is symbol 3 in slot 0 in Figure 3 , it can be determined that the starting time unit in which the first signal is transmitted is symbol 0 in slot 0 in Figure 3 . Further, assuming that the maximum number of repeated transmissions of the first signal is 5 times, the time unit in which the first signal is received for the last time is symbol 1 in slot 4 in Figure 3 (not shown). Figure 3

[0188] Method two:

[0189] The difference between method two and method one is that the first time point is the sum of the time at which the first signal is received for the last time in method one and the first time delay. It can be understood that it can take a certain time for the first device to switch the second link to a state in which data can be received according to the first signal, and the first time delay can ensure that the second link is in a state in which data can be received.

[0190] In addition, the first time delay can be one or more time units, or a specific time value, and embodiments of the present application do not make specific limitations thereon. In addition, the first time delay can be agreed upon by a protocol, or negotiated by the first device and the second device, or indicated by the second device, and embodiments of the present application do not make specific limitations thereon.

[0191] The first time point in method two will be specifically described below in combination with Figure 7 .

[0192] Figure 7 is a schematic diagram provided by an embodiment of the present application for determining the first time point. As shown in Figure 7 ​As shown in FIG. 5, the maximum value of the candidate repetition times of the first signal is 5, the first signal is configured to be repeatedly transmitted in a period of 1 time unit, and the starting time unit for transmitting the first signal is time unit 1. Assuming that the first device starts to receive the first signal from time unit 1, and actually receives the first signal from time unit 2 through repetition combination, the first device can determine that the starting time unit for transmitting the first signal is time unit 1, the time unit for receiving the first signal for the last time is time unit 5, and the first time point is the sum of the end time of time unit 5 and the first time delay.

[0193] It can be understood that the above Figure 7 are only examples, and other manners can also be used to determine the first time point according to the maximum value of the candidate repetition times of the first signal. For example, the first time point can be the sum of the starting time of time unit 5 in FIG. 5 and the first time, and the embodiments of the present application do not make a specific limitation thereon. Figure 7

[0194] In another possible implementation manner, the first time point is determined according to the time for receiving the first signal on the first link and a second time delay.

[0195] It can be understood that the time for receiving the first signal on the first link can be the starting time or the end time for receiving the first signal on the first link, or the time unit for receiving the first signal on the first link. The specific value of the second time delay can be agreed by a protocol, or pre-negotiated by the first device and the second device, or indicated by the second device, and the embodiments of the present application do not make a specific limitation thereon.

[0196] For example, as shown in FIG. 5, the first time point can be the sum of the starting time of the time unit for receiving the first signal on the first link and the second time delay. In addition, the first time point can also be the sum of the starting time of the starting time unit for transmitting the first signal in FIG. 5 and the second time delay. Figure 7 Figure 7

[0197] That is, the first device can determine when the second link can receive data according to the first time point determined according to the time for receiving the first signal on the first link and the second time delay.

[0198] In a possible implementation manner, before the first device receives the first signal on the first link, Figure 6 The method shown in FIG. 5 further includes the following steps.

[0199] ​​​S603, the second device performs PDCCH transmission according to a monitoring occasion MO corresponding to a first SSSG in the plurality of SSSGs associated with the first BWP. Correspondingly, the first device performs physical downlink control channel PDCCH monitoring on the second link according to the MO corresponding to the first SSSG in the plurality of SSSGs associated with the first BWP, and starts a first timer. The switching occasion of the first SSSG is determined according to the duration of the first timer.

[0200] It can be understood that the switching occasion of the first SSSG is determined according to the duration of the first timer, which can be switching the first SSSG to a second SSSG in the plurality of SSSGs when the duration of the first timer expires. Specifically, the second SSSG can be the SSSG with an SSSG index of 0 in the aforementioned "scheduling and search space set", and the first SSSG can be the SSSG with an SSSG index other than 0. Alternatively, the first SSSG can be the SSSG with an SSSG index of 0, and the second SSSG can be the SSSG with an SSSG index other than 0, which is not limited in the embodiments of the present application.

[0201] In a possible implementation, the second device sends data after the first time point (i.e., step S602), including: the second device performs PDCCH transmission according to the MO corresponding to any one of the following SSSGs after the first time point: the first SSSG, a second SSSG in the plurality of SSSGs associated with the first BWP, or an SSSG in the plurality of SSSGs associated with the second BWP. Correspondingly, the first device receives data from the second device through the second link of the first device after the first time point, including: the first device receives PDCCH from the second device through the second link of the first device according to the MO corresponding to any one of the following SSSGs after the first time point: the first SSSG, the second SSSG in the plurality of SSSGs associated with the first BWP, or the SSSG in the plurality of SSSGs associated with the second BWP.

[0202] It can be understood that the above specific PDCCH monitoring or transmission according to which one of the first SSSG, the second SSSG, or the SSSG associated with the second BWP can be agreed by the protocol, or agreed by the first device and the second device in advance, or indicated by the second device, which is not limited in the embodiments of the present application.

[0203] That is, in a case that the first device is configured to switch SSSG monitoring PDCCH based on the timer, and the first signal for causing the second link to receive data is received through the first link, the first device and the second device can determine to perform PDCCH monitoring or transmission according to the agreed SSSG after the first time point, so that the first device and the second device can determine when the second link can receive PDCCH and the SSSG used, so that the MO of the first device monitoring PDCCH matches the timing of the second device sending PDCCH.

[0204] The setting of the first timer of the first device and the second device and the case of using SSSG are specifically explained below.

[0205] In a possible implementation, Figure 6 The method shown further includes:

[0206] S604, in a case that the second device performs PDCCH transmission according to the MO corresponding to the first SSSG, the second device starts the first timer. Wherein, the switching timing of the first SSSG is determined according to the time length of the first timer.

[0207] S605, in a case that the second device sends the second indication information, the second device stops or suspends the first timer. Wherein, the second indication information is used to indicate to stop monitoring PDCCH transmission.

[0208] It can be understood that stopping the first timer can mean that the first timer ends timing. Wherein, after stopping the first timer, starting the first timer again should reset the first timer, that is, the timing of the first timer is cleared.

[0209] In addition, suspending the first timer can mean pausing the current timing of the first timer. Wherein, the first timer is waiting to be restored, and when the first timer is restored, the first timer continues to time from the previous paused timing.

[0210] That is, the second device can indicate the first device to stop monitoring PDCCH transmission and stop or suspend the first timer by sending the second indication information, so as to synchronize the timing of the first timer between the first device and the second device, and avoid the synchronization of the first SSSG switching timing due to the unsynchronized timing of the first timer.

[0211] S606, in a case that the first device stops monitoring PDCCH on the second link, the first device stops or suspends the first timer.

[0212] That is to say, when the first device stops monitoring PDCCH on the second link, it stops or suspends the first timer so that the timing of the first timer is synchronized between the first device and the second device, thereby avoiding the first SSSG switching timing being out of sync due to the timing out of sync of the first timer.

[0213] It can be understood that the first device can receive the second indication information from the second device to stop monitoring PDCCH transmission, or can trigger the stop of monitoring PDCCH transmission according to conditions, and then notify the second device, so that when the second device receives the indication from the first device to stop PDCCH transmission, the second device stops or suspends the first timer.

[0214] In one possible implementation, the second device transmits a PDCCH after a first time point according to the MO corresponding to the first SSSG. Accordingly, the first device receives data through the second link of the first device after the first time point, including: the first device monitors the PDCCH on the second link after the first time point according to the MO corresponding to the first SSSG.

[0215] That is to say, when the first device and the second device stop monitoring or transmitting PDCCH according to the first SSSG and enable the second link to receive data through the first signal, the first device and the second device can continue to use the first SSSG to monitor or transmit PDCCH, reducing the impact on the service transmission of the first device and the second device based on SSSG switching.

[0216] In one possible implementation, the second device stops the first timer, and after the first time point, the second device performs PDCCH transmission according to the MO corresponding to the first SSSG; Figure 6 The method shown also includes:

[0217] S607: The second device resets the first timer after the first time point.

[0218] That is to say, when PDCCH transmission is performed according to the MO corresponding to the first SSSG after the first time point, the second device can reset the first timer after the first time point, and then determine the switching timing of the first SSSG according to the reset first timer, so as to maintain synchronization with the first timer of the first device, thereby avoiding the switching timing of the first SSSGs of the two being out of synchronization.

[0219] It can be understood that for resetting the first timer, reference can be made to the relevant description of the aforementioned step S605, which will not be repeated here.

[0220] In a possible implementation, the first device stops the first timer, and after the first time point, the first device monitors the PDCCH on the second link according to the MO corresponding to the first SSSG; Figure 6 The method shown also includes:

[0221] S608: The first device resets the first timer after the first time point.

[0222] That is to say, when PDCCH monitoring is performed according to the MO corresponding to the first SSSG after the first time point, the first device can reset the first timer after the first time point, and then determine the switching timing of the first SSSG according to the reset first timer, so as to maintain synchronization with the first timer of the second device, thereby avoiding the switching timing of the first SSSGs of the two being out of sync.

[0223] The following combination Figure 8 The first device stops and resets the first timer.

[0224] Figure 8 This is a schematic diagram of a method for monitoring PDCCH based on a first timer and a first SSSG provided in an embodiment of the present application. Figure 1 .like Figure 8 As shown, the second link of the first device monitors the PDCCH according to the MO corresponding to the first SSSG. When a trigger condition is met (for example, the first device receives the second indication information), the second link of the first device stops monitoring the PDCCH and stops the first timer. After the first device receives the first signal on the first link, the first device resets the first timer after the first time point and monitors the PDCCH according to the MO corresponding to the first SSSG.

[0225] In one possible implementation, the second device suspends the first timer, and after the first time point, the second device performs PDCCH transmission according to the MO corresponding to the first SSSG; Figure 6 The method shown also includes:

[0226] S609: The second device resumes the first timer after the first time point.

[0227] That is, when the PDCCH is transmitted according to the MO corresponding to the first SSSG after the first time point, the second device can restore the first timer after the first time point, and then determine the switching timing of the first SSSG based on the restored first timer, thereby reducing the impact on the first timer. In addition, it is also convenient to maintain synchronization with the first timer of the first device, avoiding asynchrony between the switching timings of the first SSSGs of the two.

[0228] It can be understood that according to the foregoing description of step S605 about resuming the first timer, resuming the first timer means continuing the timing from the time when the first timer is suspended, which will not be described herein again.

[0229] In a possible implementation, the first device suspends the first timer; and the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the first time point. Figure 6 The method shown further includes:

[0230] S610, the first device resumes the first timer after the first time point.

[0231] That is, in the case of performing PDCCH transmission according to the MO corresponding to the first SSSG after the first time point, the first device can resume the first timer after the first time point, and then determine the switching time of the first SSSG according to the resumed first timer, so as to reduce the influence on the first timer. In addition, it is also convenient to keep synchronization with the first timer of the second device, and avoid the switching time of the first SSSG of the two devices out of synchronization.

[0232] The following will be described in combination with Figure 9 an example to illustrate the suspension and resumption of the first timer of the first device.

[0233] Figure 9 is a method for performing PDCCH monitoring based on the first timer and the first SSSG provided by the embodiment of the application Figure 2 . As Figure 9 shown, the second link of the first device performs PDCCH monitoring according to the MO corresponding to the first SSSG, and in the case of meeting the triggering condition (for example, the first device receives the second indication information described above), the second link of the first device stops PDCCH monitoring and suspends the first timer. After the first device receives the first signal on the first link, the first device resumes the first timer after the first time point, and performs PDCCH monitoring according to the MO corresponding to the first SSSG. In addition, in the case of the expiration of the first timer, the first SSSG can switch to the second SSSG, and perform PDCCH monitoring according to the MO corresponding to the second SSSG.

[0234] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the second SSSG after the first time point. Correspondingly, the first device receives data through the second link of the first device after the first time point, including: the first device performs PDCCH monitoring on the second link according to the MO corresponding to the second SSSG after the first time point.

[0235] That is, in the case that the first device and the second device stop PDCCH monitoring or transmission according to the first SSSG, and the second link receives data through the first signal, the first device and the second device can switch the first SSSG to the second SSSG, and the flexibility of switching the first SSSG based on the first timer can be improved.

[0236] It can be understood that if the MO sparsity degree corresponding to the second SSSG is greater than the MO sparsity degree corresponding to the first SSSG, the terminal power consumption can be further saved; if the MO sparsity degree corresponding to the second SSSG is less than the MO sparsity degree corresponding to the first SSSG, the service transmission delay can be further reduced, so that the first device or the second device can flexibly switch the first SSSG to the second SSSG based on service requirements.

[0237] In addition, the second SSSG can be SSSG0 with an SSSG index of 0 in the aforementioned "scheduling and search space set", or an SSSG with an index other than 0, and the embodiments of the present application do not make specific limitations on this.

[0238] The following will be described in combination with Figure 10 Exemplarily illustrate the switching of the first SSSG to the second SSSG.

[0239] Figure 10 is a schematic diagram of the switching of the first SSSG to the second SSSG provided by the embodiments of the present application. As Figure 10 indicated, the second link of the first device performs PDCCH monitoring according to the MO corresponding to the first SSSG, and in the case that the trigger condition (for example, the first device receives the second indication information) is met, the second link of the first device stops PDCCH monitoring and stops or suspends the first timer. After the first device receives the first signal on the first link, the first device switches the SSSG from the first SSSG to the second SSSG (for example, SSSG0) at a first time point, and performs PDCCH monitoring according to the MO corresponding to the second SSSG.

[0240] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the second SSSG at the first time point. Figure 6 The method shown in the figure further includes:

[0241] S611, the second device starts a second timer after the first time point. The switching time of the second SSSG is determined according to the time length of the second timer.

[0242] It can be understood that the switching time of the second SSSG can refer to the switching time of the first SSSG, which will not be described here.

[0243] That is, in the case that the second device performs PDCCH transmission according to the MO corresponding to the second SSSG after the first time point, the second device can start the second timer for switching of the second SSSG, so as to keep synchronization with the second timer of the first device, and avoid that the switching time of the second SSSG of the two devices is out of synchronization.

[0244] In a possible implementation, the first device performs PDCCH monitoring according to the MO corresponding to the second SSSG after the first time point. Figure 6 The method shown further includes:

[0245] S612, the first device starts the second timer after the first time point. The switching time of the second SSSG is determined according to the time length of the second timer.

[0246] That is, in the case that the first device performs PDCCH monitoring according to the MO corresponding to the second SSSG after the first time point, the first device can start the second timer for switching of the second SSSG, so as to keep synchronization with the second timer of the second device, and avoid that the switching time of the second SSSG of the two devices is out of synchronization.

[0247] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the first time point, including: the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the second time point. The second time point is determined according to the first time point and the BWP switching delay of switching from the first BWP to the second BWP.

[0248] It can be understood that PDCCH transmission according to the SSSG associated with the second BWP after the first time point involves the BWP switching delay between switching from the first BWP to the second BWP, and then the second device should at least perform PDCCH transmission after switching from the first BWP to the second BWP. In other words, the second time point should be greater than or equal to the first time. Specifically, if the time point of switching from the first BWP to the second BWP is less than or equal to the first time point after receiving the first signal, the second time point is equal to the first time point; if the time point of switching from the first BWP to the second BWP is greater than the first time point, the second time point is greater than the first time point.

[0249] The following describes the way of determining the second time point based on the second way in step S602.

[0250] It can be understood that in the second mode, the first time point is the sum of the time of the last time of receiving the first signal and the first time delay, and the second time point is the sum of the time of the last time of receiving the first signal and the third time delay, the third time delay being the maximum value between the first time delay and the BWP switching time delay of switching the first BWP to the second BWP, that is, max (the first time delay, the BWP switching time delay), that is, the second time point = the time of the last time of receiving the first signal + max (the first time delay, the BWP switching time delay).

[0251] The flow of switching the first device from the first SSSG to the SSSG associated with the second BWP is exemplarily illustrated below.

[0252] Exemplarily, the flow of switching the first device from the first SSSG to the SSSG associated with the second BWP includes:

[0253] a. The first device listens to the PDCCH according to the first SSSG on the first BWP;

[0254] b. The first device is explicitly or implicitly triggered to listen to the first signal using the first link, and the second link enters a sleep state, and then the first device no longer continues to listen to the PDCCH;

[0255] c. The first link of the first device receives the first information for waking up the second link;

[0256] d. The first device wakes up the second link and switches to the second BWP, and then the first device can listen to the PDCCH according to the SSSG associated with the second BWP after the second time point.

[0257] That is, in the case that the second device stops the PDCCH transmission according to the first SSSG and indicates the second link to receive data by sending the first signal, the second device can switch the first SSSG associated with the first BWP to the SSSG associated with the second BWP, and perform the PDCCH transmission after the second time point, so as to make the first device and the second device match the MO corresponding to the switched SSSG associated with the second BWP.

[0258] In a possible implementation, the first device receives data through the second link of the first device after the first time point, including: the first device performs PDCCH listening on the second link according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the second time point, and the second time point is determined according to the first time point and the BWP switching time delay of switching the first BWP to the second BWP.

[0259] That is to say, when the first device stops monitoring PDCCH according to the first SSSG and enables the second link to receive data by receiving the first signal, the first device can switch the first SSSG associated with the first BWP to the SSSG associated with the second BWP, and perform PDCCH monitoring after the second time point, so that the first device and the second device can match the MO corresponding to the SSSG associated with the second BWP after the switch.

[0260] In addition, the second device in the embodiment of the present application may include a CU, a DU, a CU-CP, a CU-UP, or a RU. Optionally, the second device may further include an AAU. The CU implements part of the functions of the second device, and the DU implements part of the functions of the second device. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the RRC and / or PDCP layers. The DU is responsible for processing PHY layer protocols and real-time services, and implementing the functions of the RLC layer, the MAC layer, and the PHY layer. The AAU implements some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this architecture, high-level signaling, such as RRC signaling, can also be considered to be sent by the DU, or by the DU+AAU. It can be understood that the second device can be a device including one or more of a CU node, a DU node, and an AAU node.

[0261] For example, the second device may be the O-CU, O-DU, or O-RU in the aforementioned ORAN, or a combination of O-CU, O-DU, or O-RU. For example, the O-DU may determine the first time point based on the maximum value of the candidate repeated transmission times according to the first signal, and send data to the first device after the first time point. In addition, the near real-time or non-real-time radio intelligent controller (RIC) in the O-CU or ORAN architecture may also determine the first time point based on the maximum value of the candidate repeated transmission times according to the first signal, and send data to the first device after the first time point. This embodiment of the present application does not specifically limit this.

[0262] Since, in an embodiment of the present application, after receiving the first signal, the first device can determine that data can be received through the second link after a first time point, and the first time point is determined based on the maximum value of the candidate repeated transmission times according to the first signal, the second device on the network side can determine when the second link can perform service transmission, thereby avoiding affecting service transmission.

[0263] It is understood that the present application embodiment also provides another information transmission method (see Figure 11 ), the information transmission method isFigure 6 The difference between the methods shown is that the first device sends first indication information to the second device to indicate that the second link is woken up after receiving the first signal, and then receives data through the second link after a third time point. The third time point is different from the first time point, and the third time point is determined according to the time of transmitting the first indication information.

[0264] The following will be specifically introduced Figure 11 The information transmission method shown.

[0265] Figure 11 is a flowchart of an information transmission method provided by an embodiment of the present application Figure 2 . As Figure 11 shown, the information transmission method includes the following steps:

[0266] S1101, the second device performs PDCCH transmission according to the MO corresponding to the first SSSG in the plurality of SSSGs associated with the first BWP. Correspondingly, the first device performs PDCCH monitoring on the second link of the first device according to the MO corresponding to the first SSSG.

[0267] It can be understood that step S1101 can be referred to step S603 for details, which will not be repeated here.

[0268] S1102, the second device sends a first signal to the first device. Correspondingly, the first device receives the first signal from the second device. The first signal is used to wake up the PDCCH monitoring on the second link.

[0269] It can be understood that the specific implementation of step S1102 can be referred to step S601 for details, which will not be repeated here.

[0270] S1103, in the case that the first device stops PDCCH monitoring on the second link and the first link of the first device receives the first signal, the first device sends first indication information through the second link. Correspondingly, the second device receives the first indication information from the first device. The first indication information is used to indicate that the second link is woken up.

[0271] It can be understood that the first device can use a preconfigured uplink resource, or a configured grant, or a random access resource, etc. to send the first indication information, that is, there is a preconfigured uplink resource for sending the first indication information after the first device receives the first signal.

[0272] In addition, the resource for sending the first indication information can be periodic or aperiodic, which is not limited in the embodiments of the present application.

[0273] S1104, after the third time point, the second device performs PDCCH transmission according to the MO corresponding to any one of the following SSSGs: the first SSSG, the second SSSG in the plurality of SSSGs associated with the first BWP, or the SSSG in the plurality of SSSGs associated with the second BWP. Correspondingly, the first device performs PDCCH monitoring on the second link after the third time point according to the MO corresponding to any one of the following SSSGs: the first SSSG, the second SSSG, or the SSSG in the plurality of SSSGs associated with the second BWP.

[0274] The third time point is determined according to the time of transmitting the first indication information.

[0275] It can be understood that the third time point can be the start time or the end time of transmitting the first indication information, or the start time or the end time corresponding to the time unit in which the first indication information is transmitted, and the embodiments of the present application do not make specific limitations on this.

[0276] In addition, for the start time, the end time, or the start time or the end time corresponding to the time unit, please refer to the related descriptions of the first mode and the second mode in step S602 of Figure 6 , which will not be repeated here.

[0277] In a possible implementation manner, Figure 11 The method shown further includes:

[0278] S1105, in the case where the second device performs PDCCH transmission according to the MO corresponding to the first SSSG, the second device starts a first timer. The switching time of the first SSSG is determined according to the time length of the first timer.

[0279] It can be understood that the specific implementation of step S1105 can be referred to step S604.

[0280] S1106, in the case where the second device sends second indication information, the second device stops or suspends the first timer. The second indication information is used to indicate to stop monitoring PDCCH transmission.

[0281] It can be understood that the specific implementation of step S1106 can be referred to step S605.

[0282] That is, the second device can indicate the first device to stop monitoring PDCCH transmission by sending the second indication information, and stop or suspend the first timer, so as to synchronize the timing of the first timer between the first device and the second device, and avoid the synchronization of the first SSSG switching time due to the unsynchronized timing of the first timer.

[0283] In a possible implementation manner, Figure 11The method also includes:

[0284] S1107, in a case where the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG, the first device starts a first timer. The switching time of the first SSSG is determined according to the length of the first timer.

[0285] It can be understood that the specific implementation of step S1107 can be referred to step S605.

[0286] S1108, in a case where the first device stops performing PDCCH monitoring on the second link, the first device stops or suspends the first timer.

[0287] It can be understood that the specific implementation of step S1108 can be referred to step S606.

[0288] That is, in a case where the first device stops performing PDCCH monitoring on the second link, the first device stops or suspends the first timer, so that the first device and the second device are synchronized in timing regarding the first timer, and the switching time of the first SSSG is avoided from being unsynchronized.

[0289] In a possible implementation, the second device stops the first timer, and the second device performs PDCCH transmission according to the MO corresponding to the first SSSG after the third time point; Figure 11 The method also includes:

[0290] S1109, the second device resets the first timer after the third time point.

[0291] It can be understood that step S1109 is similar to step S607, the difference is that step S607 resets the first timer after the first time point, and the specific implementation of step S1109 can be referred to step S607, which will not be repeated here.

[0292] That is, in a case where PDCCH transmission is performed according to the MO corresponding to the first SSSG after the third time point, the second device can reset the first timer after the third time point, and then determine the switching time of the first SSSG according to the reset first timer, so as to keep synchronization with the first timer of the first device, and avoid the switching time of the first SSSG of the two devices from being unsynchronized.

[0293] In a possible implementation, the first device stops the first timer, and the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the third time point; Figure 11 The method also includes:

[0294] S1110, the first device resets the first timer after the third time point.

[0295] It can be understood that step S1110 is similar to step S608, and the difference is that step S608 is to reset the first timer after the first time, and the specific implementation of step S1110 can be referred to step S607, which will not be described here.

[0296] That is, in the case of performing PDCCH monitoring according to the MO corresponding to the first SSSG after the third time point, the first device can reset the first timer after the third time point, and then determine the switching time of the first SSSG according to the reset first timer, so as to keep synchronization with the first timer of the second device, and avoid the switching time of the first SSSG of the two devices out of synchronization.

[0297] In a possible implementation, the second device suspends the first timer, and the second device performs PDCCH transmission according to the MO corresponding to the first SSSG after the third time point. Figure 11 The method shown further includes:

[0298] S1111, the second device resumes the first timer after the third time point.

[0299] It can be understood that step S1111 is similar to step S609, and the difference is that step S609 is to resume the first timer after the third time point, and the specific implementation of step S1111 can be referred to step S609, which will not be described here.

[0300] That is, in the case of performing PDCCH transmission according to the MO corresponding to the first SSSG after the third time point, the second device can resume the first timer after the third time point, and then determine the switching time of the first SSSG according to the resumed first timer, so as to reduce the influence on the first timer. In addition, it is convenient to keep synchronization with the first timer of the first device, and avoid the switching time of the first SSSG of the two devices out of synchronization.

[0301] In a possible implementation, the first device suspends the first timer, and the first device performs PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the third time point. Figure 11 The method shown further includes:

[0302] S1112, the first device resumes the first timer after the third time point.

[0303] It can be understood that step S1112 is similar to step S610, and the difference is that step S610 is to resume the first timer after the first time point, and the specific implementation of step S1112 can be referred to step S610, which will not be described here.

[0304] That is, in the case that the first device performs PDCCH monitoring according to the MO corresponding to the first SSSG after the third time point, the first device can resume the first timer after the third time point, and then determine the switching time of the first SSSG according to the resumed first timer, so as to reduce the influence on the first timer. In addition, it is convenient to keep synchronization with the first timer of the second device, and avoid that the switching times of the first SSSGs of the two devices are out of synchronization.

[0305] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the second SSSG after the third time point. Figure 11 The method further includes:

[0306] S1113, the second device starts the second timer after the third time point. The switching time of the second SSSG is determined according to the time length of the second timer.

[0307] It can be understood that step S1113 is similar to step S611, and the difference is that step S611 starts the second timer after the first time point. The specific implementation of step S1113 can be referred to step S611, which will not be described here. That is, in the case that the second device performs PDCCH transmission according to the MO corresponding to the second SSSG after the third time point, the second device can start the second timer for switching the second SSSG, so as to keep synchronization with the second timer of the first device, and avoid that the switching times of the second SSSGs of the two devices are out of synchronization.

[0308] In a possible implementation, the first device performs PDCCH monitoring according to the MO corresponding to the second SSSG on the second link after the third time point. The method further includes:

[0309] S1114, the first device starts the second timer after the third time point. The switching time of the second SSSG is determined according to the time length of the second timer.

[0310] It can be understood that step S1114 is similar to step S612, and the difference is that step S612 starts the second timer after the first time point. The specific implementation of step S1114 can be referred to step S612, which will not be described here.

[0311] That is, in the case that the first device performs PDCCH monitoring according to the MO corresponding to the second SSSG after the third time point, the first device can start the second timer for switching the second SSSG, so as to keep synchronization with the second timer of the second device, and avoid that the switching times of the second SSSGs of the two devices are out of synchronization.

[0312] In a possible implementation, the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the third time point, including: the second device performs PDCCH transmission according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the fourth time point, and the fourth time point is determined according to the third time point and a BWP switching delay of switching from the first BWP to the second BWP.

[0313] It should be understood that the fourth time point is determined in a manner similar to the second time point of Figure 6 the first time point is replaced by the second time point, for example, the third time point can be determined according to the time at which the first device sends the first indication information, and the first delay is the difference between the third time point and the time of receiving the first signal, and the third delay is the maximum value between the first delay and the BWP switching delay of switching from the first BWP to the second BWP, that is, max(first delay, BWP switching delay), that is, the fourth time point = time of receiving the first signal + max(first delay, BWP switching delay). Or, the fourth time point = max(third time point, time of receiving the first signal + BWP switching delay).

[0314] That is, in the case where the second device stops performing PDCCH transmission according to the first SSSG and indicates that the second link receives data by sending the first signal, the second device can switch the first SSSG associated with the first BWP to the SSSG associated with the second BWP, and perform PDCCH transmission after the fourth time point, so that the first device and the second device match the MO corresponding to the switched SSSG associated with the second BWP.

[0315] In a possible implementation, the first device performs PDCCH monitoring on the second link according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the third time point, including: the first device performs PDCCH monitoring on the second link according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after the fourth time point, and the fourth time point is determined according to the third time point and a BWP switching delay of switching from the first BWP to the second BWP.

[0316] That is, in the case where the first device stops performing PDCCH monitoring according to the first SSSG and causes the second link to receive data by receiving the first signal, the first device can switch the first SSSG associated with the first BWP to the SSSG associated with the second BWP, and perform PDCCH monitoring after the fourth time point, so that the first device and the second device match the MO corresponding to the switched SSSG associated with the second BWP.

[0317] Since in the embodiments of the present application, the first device stops PDCCH monitoring according to the SSSG through the second link, and receives the indication information for indicating that the second link is woken up through the first link, the first device and the second device can determine to perform PDCCH monitoring or transmission according to the agreed SSSG after the third time point, so that the first device and the second device can determine when the second link is woken up and the SSSG used after the wakening, and the MO of the first device for monitoring the PDCCH matches the timing of the second device for sending the PDCCH.

[0318] The above describes the method embodiments provided by the embodiments of the present application. Correspondingly, the embodiments of the present application also provide a communication device for implementing the above various methods. The communication device can be the first device in the above method embodiments, or a device containing the above first device, or a component applicable to the first device; or the communication device can be the second device in the above method embodiments, or a device containing the above second device, or a component applicable to the second device.

[0319] Figure 12 is a structure schematic of a communication device provided by the embodiments of the present application Figure 1 . As shown in Figure 12 , the communication device 1200 can include modules or units for implementing the above method embodiments. In one possible design, the communication device 1200 includes a communication unit 1203. Optionally, the communication device 1200 can further include a processing unit 1202. Optionally, the communication device 1200 can further include a storage unit 1201 for storing device program code and / or data.

[0320] The communication device 1200 can be the first device in the above embodiments, for example, the first device can be a terminal or a communication module in the terminal, or a circuit or chip responsible for the communication function in the terminal.

[0321] For example, in one embodiment, the communication unit 1203 is configured to receive a first signal through a first link. The communication unit 1203 is further configured to receive data through a second link of the first device after a first time point. The first time point is determined according to a maximum value of candidate repetition transmission times of the first signal.

[0322] In one possible design, when the communication device 1200 is a terminal or a communication module in the terminal, the function of the processing unit 1202 can be implemented by one or more processors. Specifically, the processor can include a modem chip, or a system on chip SoC chip or a SIP chip containing a modem core. The function of the communication unit 1203 can be implemented by a transceiver circuit.

[0323] In a possible design, when the communication apparatus 1200 is a circuit or chip responsible for communication functions in a terminal, such as a modem chip or a system on chip (SoC) chip or a system in package (SIP) chip including a modem core, the function of the processing unit 1202 can be implemented by circuitry including one or more processors or processor cores in the chip. The function of the communication unit 1203 can be implemented by interface circuitry or data transceiver circuitry on the chip.

[0324] The communication apparatus 1200 can be the second apparatus in the above-described embodiments. For example, the second apparatus can be an access network device or a module in an access network device, for example, a module in an access network device can be an access network device or a communication module in an access network device, or a circuit or chip responsible for communication functions in an access network device.

[0325] For example, in an embodiment, the communication unit 1203 is configured to send the first signal. The communication unit 1203 is further configured to send the data after the first time point. The first time point is determined according to the maximum value of the candidate number of repeated transmissions of the first signal.

[0326] It can be understood that the division of units in the above-described apparatus is only a logical functional division, one function can correspond to one functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or part of the units can be integrated into one physical entity, or distributed on different physical entities. In addition, the above-mentioned functional units can be implemented in the form of hardware, or in the form of software, or in the form of combination of hardware and software. Whether a certain function is implemented in the form of hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for specific applications, but such implementation should not be considered beyond the scope of the present application.

[0327] In an example, the functional units in any of the above apparatuses can be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (ASICs), or, one or more central processing units (CPUs), one or more microcontroller units (MCUs), one or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0328] In an example, the storage unit 1201 can include random access memory, flash memory, read only memory, programmable read only memory, electrically erasable programmable memory, and / or registers, etc.

[0329] In addition, the communication apparatus 1200 can perform the above information transmission method, and thus the technical effects that it can obtain can refer to the above method embodiments, which will not be described here again.

[0330] Figure 13 is a schematic diagram of a terminal structure provided by an embodiment of the present application. The terminal can correspond to the terminal shown in Figure 5 , and is used to implement the operations of the terminal in the above embodiments. As shown in Figure 13 , the terminal includes one or more antennas 1310, a radio frequency (RF) processing system 1320, and a processor system 1330.

[0331] In the downlink or sidelink direction, the RF processing system 1320 receives a radio frequency signal through the antenna 1310, and sends the signal after RF processing to the processor system 1330 for further processing. In the uplink or sidelink direction, the processor system 1330 performs signal processing on the information (for example, data) at the terminal side, and sends it to the RF processing system 1320, which performs RF processing on the signal and transmits it through the antenna 1310.

[0332] In one example, the radio frequency processing system 1320, as a communication interface for the terminal to communicate with the outside, can include a radio frequency front end 1321 (RFFE) and a radio frequency transceiver 1322. The RFFE 1321 is mainly used for one or more of shaping, passband selection, or gain processing of the RF signals received by the antenna or the RF signals to be sent through the antenna, and can include one or more of radio frequency switches, duplexers, filters, power amplifiers, antenna tuning, and low-noise amplifiers. The RFFE 1321 can be a circuit system composed of a plurality of discrete devices, or can be integrated and packaged in one or more chips. The radio frequency transceiver 1322 is used to process the RF signals received by the RFFE into baseband / intermediate frequency signals for the processor system 1330 to process next, and process the baseband / intermediate frequency signals provided by the processor system 1330 into RF signals for the RFFE 1321. The baseband / intermediate frequency signals transmitted between the radio frequency transceiver 1322 and the processor system 1330 can be digital signals or analog signals. The radio frequency transceiver 1322 can be implemented by one or more chips, which are usually referred to as radio frequency chips (RFIC).

[0333] In one example, the processor system 1330 can include one or more processors for processing signals and executing one or more communication protocols. Optionally, the processor system 1330 can further include a memory 1336. In one example, the one or more processors include at least one baseband processor 1331 (also referred to as a modem processor). The memory 1336 is used to store data and / or computer program instructions. Optionally, the processor system 1330 can further include one or more application processors 1332 for implementing processing of the terminal operating system and the application layer. Optionally, the processor system 1330 can further include one or more of a voice subsystem 1333, a multimedia subsystem 1334, or an interface circuit 1335. Among them, the voice subsystem 1333 is used to process voice signals, the multimedia subsystem 1334 is used to process multimedia related operations such as video encoding and decoding, image processing, etc., and the interface circuit 1335 is used to realize communication with other terminal components such as a display 1340, an input device 1350, a memory 1360, etc. The above-mentioned components in the processor system 1330 can communicate with each other through a bus or a communication interface circuit.

[0334] In one example, the processor system 1330 can be packaged into a processor chip, such as a SoC chip or a SIP chip. In one example, the processor system 1330 can be a system composed of multiple chips, for example, the baseband processor 1331 can be packaged into a chip separately, or packaged into a chip with part or all of the circuit of the radio frequency processing system.

[0335] In one example, the memory 1336 can be on-chip memory, i.e., located on the chip of the processor system 1330. In one example, the memory 1360 can be off-chip memory, i.e., located off the chip of the processor system 1330.

[0336] In one example, the baseband processor 1331 can include one or more processor cores 13311 and interface circuitry 13314. The one or more processor cores 13311 are configured to process signals and perform one or more communication protocols. Optionally, the baseband processor 1331 can further include a memory 13312 configured to store at least part of corresponding computer program instructions and / or data. In one example, the one or more processor cores 13311 perform the above-mentioned operations (the processing of data transmission or reception in the time range corresponding to the first time domain resource in the case where the priority of the first measurement configuration is low, and / or the priority of the first physical channel is high) by executing the computer program instructions stored in the memory 13312. In the embodiments of the present application, the memory 13312 configured to store corresponding computer program instructions and / or data can mean that the memory 13312 is configured to store all corresponding computer program instructions and / or data for execution by the processor core 13311; or can mean that the memory 13312 is configured to store part of corresponding computer program instructions and / or data, which includes computer program instructions and / or data currently needed for execution by the processor core 13311, and the memory 13312 can store different parts of computer program instructions and / or data for execution by the processor core 13311 multiple times to perform the above-mentioned operations. The interface circuitry 13314 serves as a communication interface to communicate with other components, such as transmitting signals with the radio frequency processing system 1320, communicating with other subsystems and related components of the processor system 1330 through the bus, such as transmitting data control signals with the application processor 1332, and transmitting data or computer program instructions with the memory 1336 or the memory 1360. Optionally, in order to reduce the load of the processor core, the baseband signal processing circuitry 13313 can be configured to perform at least part of the processing of the baseband signal, including one or more of demodulation, modulation, encoding or decoding of the signal.

[0337] In one example, the communication apparatus provided by the embodiments of the present application can be Figure 13 the terminal shown in FIG. 13, including the communication module of the processor system 1330 and the radio frequency system 1320, the processor system 1330, or the baseband processor 1331.

[0338] The processor, processor system, application processor, baseband processor, processor circuit, or processor core can be collectively referred to as a processor, which can include one or a combination of a CPU, DSP, microprocessor unit (MPU), MCU, graphics processing unit (GPU), FPGA, artificial intelligence processor (AI processor), or neural processing unit (NPU).

[0339] The memory can include one or more of the following storage media: random access memory (RAM), static RAM (SRAM), dynamic RAM (DRAM), phase-change memory (PCM), resistive RAM (ReRAM), magnetoresistive RAM (MRAM), ferroelectric RAM (FRAM), cache, register, read-only memory (ROM), flash memory, erasable programmable ROM (EPROM), hard disk, and the like. In one example, computer program instructions for implementing the above embodiments can be stored on a non-volatile memory, such as at least part of the memory 1360 (e.g., one or more of ROM, flash memory, EPROM, or hard disk). During terminal operation, the corresponding computer program instructions can be partially or entirely loaded onto a memory with faster transmission speed than the processor, such as at least part of the memory 1336 and / or the memory 13312 (e.g., one or more of RAM, SRAM, DRAM, PCM, ReRAM, MRAM, FRAM, cache, or register), for execution by the processor to implement the steps in the above method embodiments.

[0340] In one example, the radio frequency transceiver 1322 and the radio frequency front end 1321 can also be packaged in one chip. In one example, the radio frequency transceiver 1322, the radio frequency front end 1321 and the baseband processor 1331 can also be packaged in one chip.

[0341] In a possible implementation, the embodiment of the present application further provides a computer readable storage medium, which stores a computer program or instructions, and the computer program or instructions are executed by a computer to realize the functions of the above-mentioned method embodiments.

[0342] In a possible implementation, the embodiment of the present application further provides a computer program product, which is executed by a computer to realize the functions of the above-mentioned method embodiments.

[0343] In a possible implementation, the embodiment of the present application further provides a communication system, which includes the first device and the second device of the above-mentioned method embodiments.

[0344] In a possible implementation, the embodiment of the present application further provides a communication method, which includes the method of any of the above-mentioned method embodiments or any implementation thereof.

[0345] In the above-mentioned embodiments, all or part of the embodiments can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part of the embodiments can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or include one or more data storage devices that can be integrated with the medium, such as servers, data centers, etc. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium or a semiconductor medium (such as a solid state drive (SSD)), etc.

[0346] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed 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 the present application.

[0347] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0348] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0349] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0350] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit.

[0351] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0352] Although the present application is described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations can be made thereto without departing from the scope of the present application. Accordingly, the description and drawings are merely illustrative of the present application and are to be regarded as covering all modifications, variations, combinations or equivalents that are within the scope of the present application. Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is intended to include these modifications and variations.

Claims

1. A method of information transmission, characterized in that, The method comprises: The first device receives a first signal on a first link; The first device receives data on a second link of the first device after a first time point, which is determined according to a maximum value of candidate repetition transmission times of the first signal.

2. The method of claim 1, wherein, Before the first device receives the first signal on the first link, the method further comprises: The first device performs physical downlink control channel (PDCCH) monitoring on the second link according to a monitoring occasion (MO) corresponding to a first search space set group (SSSG) of a plurality of SSSGs associated with a first bandwidth part (BWP), and starts a first timer, wherein a switching time of the first SSSG is determined according to a time length of the first timer. In a case where the first device stops the PDCCH monitoring on the second link, the first device stops or suspends the first timer.

3. The method of claim 2, wherein, The first device receives data on a second link of the first device after a first time point, comprising: The first device performs the PDCCH monitoring on the second link according to a MO corresponding to a second SSSG of a plurality of SSSGs associated with the first BWP after the first time point.

4. The method of claim 3, wherein, The method further comprises: The first device starts a second timer after the first time point, wherein a switching time of the second SSSG is determined according to a time length of the second timer.

5. The method of claim 2, wherein, The first device receives data on a second link of the first device after a first time point, comprising: The first device performs the PDCCH monitoring on the second link according to a MO corresponding to the first SSSG after the first time point.

6. The method of claim 5, wherein, The first device stops the first timer; the method further comprises: The first device resets the first timer after the first time point.

7. The method of claim 5, wherein, The first device suspends the first timer; the method further comprises: The first device resumes the first timer after the first time point.

8. The method of claim 2, wherein, The first device receives data on a second link of the first device after a first time point, comprising: The first device performs the PDCCH monitoring on the second link according to a MO corresponding to a SSSG of a plurality of SSSGs associated with a second BWP after a second time point, wherein the second time point is determined according to the first time point and a BWP switching delay of switching the first BWP to the second BWP.

9. An information transmission method characterized by comprising: The method comprises: The second device sends a first signal; The second device sends data after a first time point, which is determined according to a maximum value of candidate repetition transmission times of the first signal.

10. The method of claim 9, wherein, Before the second device sends the first signal, the method further comprises: The second device performs physical downlink control channel (PDCCH) transmission according to a monitoring occasion (MO) corresponding to a first search space set group (SSSG) of a plurality of SSSGs associated with a first bandwidth part (BWP); The second device sends data after a first time point, comprising: The second device performs the PDCCH transmission according to a MO corresponding to any one of the SSSGs after the first time point. The first SSSG, a second SSSG in a plurality of SSSGs associated with the first BWP, or a SSSG in a plurality of SSSGs associated with a second BWP.

11. The method of claim 10, wherein, The method further includes: In a case where the second device performs the PDCCH transmission according to the MO corresponding to the first SSSG, the second device starts a first timer, and a switching time of the first SSSG is determined according to a time length of the first timer; In a case where the second device sends second indication information, the second device stops or suspends the first timer, and the second indication information is used to indicate to stop monitoring the PDCCH transmission.

12. The method of claim 11, wherein, The second device stops the first timer, and the second device performs the PDCCH transmission according to the MO corresponding to the first SSSG after the first time point; the method further includes: The second device resets the first timer after the first time point.

13. The method of claim 11, wherein, The second device suspends the first timer, and the second device performs the PDCCH transmission according to the MO corresponding to the first SSSG after the first time point; the method further includes: The second device resumes the first timer after the first time point.

14. The method of claim 10 or 11, wherein, The second device performs the PDCCH transmission according to the MO corresponding to the second SSSG after the first time point; the method further includes: The second device starts a second timer after the first time point, and a switching time of the second SSSG is determined according to a time length of the second timer.

15. The method of claim 10 or 11, wherein, The second device performs the PDCCH transmission according to the MO corresponding to a SSSG in a plurality of SSSGs associated with the second BWP after the first time point, including: The second device performs the PDCCH transmission according to the MO corresponding to a SSSG in a plurality of SSSGs associated with the second BWP after a second time point, and the second time point is determined according to the first time point and a BWP switching delay of switching the first BWP to the second BWP.

16. An information transmission method, characterized by, The method includes: A first device performs physical downlink control channel (PDCCH) monitoring on a second link of the first device according to a monitoring occasion (MO) corresponding to a first search space set group (SSSG) in a plurality of SSSGs associated with a first bandwidth part (BWP); In a case where the first device stops the PDCCH monitoring on the second link and a first link of the first device receives a first signal, the first device sends first indication information through the second link, the first signal is used to wake up the PDCCH monitoring on the second link, and the first indication information is used to indicate that the second link is woken up; The first device performs the PDCCH monitoring on the second link according to a monitoring occasion (MO) corresponding to any one of the following SSSGs after a third time point: the first SSSG, a second SSSG in the plurality of SSSGs associated with the first BWP, or a SSSG in the plurality of SSSGs associated with the second BWP, wherein the third time point is determined according to a time of transmitting the first indication information.

17. The method of claim 16, wherein, The method further comprises: In a case where the first device performs the PDCCH monitoring on the second link according to the MO corresponding to the first SSSG, the first device starts a first timer, and a switching time of the first SSSG is determined according to a time length of the first timer; In a case where the first device stops the PDCCH monitoring on the second link, the first device stops or suspends the first timer.

18. The method of claim 17, wherein, The first device stops the first timer, and the first device performs the PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the third time point; the method further comprises: The first device resets the first timer after the third time point.

19. The method of claim 17, wherein, The first device suspends the first timer, and the first device performs the PDCCH monitoring on the second link according to the MO corresponding to the first SSSG after the third time point; the method further comprises: The first device resumes the first timer after the third time point.

20. The method of claim 16 or 17, wherein, The first device performs the PDCCH monitoring on the second link according to the MO corresponding to the second SSSG after the third time point; the method further comprises: The first device starts a second timer after the third time point, and a switching time of the second SSSG is determined according to a time length of the second timer.

21. The method of claim 16 or 17, wherein, The first device performs the PDCCH monitoring on the second link according to the MO corresponding to a SSSG in the plurality of SSSGs associated with the second BWP after the third time point, comprising: The first device performs the PDCCH monitoring on the second link according to the MO corresponding to the SSSG in the plurality of SSSGs associated with the second BWP after a fourth time point, and the fourth time point is determined according to the third time point and a BWP switching time delay of switching the first BWP to the second BWP.

22. An information transmission method, characterized by, The method comprises: A second device performs physical downlink control channel (PDCCH) transmission according to a monitoring occasion (MO) corresponding to a first search space set group (SSSG) in a plurality of SSSGs associated with a first bandwidth part (BWP); The second device transmits a first signal, and the first signal is used to wake up a device for monitoring the PDCCH transmission on a second link; The second device receives first indication information, and the first indication information is used to indicate that the second link is woken up; The second device performs the PDCCH transmission according to a monitoring occasion (MO) corresponding to any one of the following SSSGs after a third time point: The first SSSG, a second SSSG in a plurality of SSSGs associated with the first BWP, or a SSSG in a plurality of SSSGs associated with a second BWP; wherein the third time point is determined according to a time of transmitting the first indication information.

23. The method of claim 22, wherein, The method further includes: In a case where the second device performs the PDCCH transmission according to the MO corresponding to the first SSSG, the second device starts a first timer, and a switching time of the first SSSG is determined according to a time length of the first timer; In a case where the second device transmits second indication information, the second device stops or suspends the first timer, and the second indication information is used to indicate to stop monitoring the PDCCH transmission.

24. The method of claim 23, wherein, The second device stops the first timer, and the second device performs the PDCCH transmission according to the MO corresponding to the first SSSG after the third time point; the method further includes: The second device resets the first timer after the third time point.

25. The method of claim 23, wherein, The second device suspends the first timer, and the second device performs the PDCCH transmission according to the MO corresponding to the first SSSG after the third time point; the method further includes: The second device resumes the first timer after the third time point.

26. The method of claim 22 or 23, wherein, The second device performs the PDCCH transmission according to the MO corresponding to the second SSSG after the third time point; the method further includes: The second device starts a second timer after the third time point, and a switching time of the second SSSG is determined according to a time length of the second timer.

27. The method of claim 22 or 23, wherein, The second device performs the PDCCH transmission according to the MO corresponding to a SSSG in a plurality of SSSGs associated with the second BWP after the third time point, including: The second device performs the PDCCH transmission according to the MO corresponding to a SSSG in a plurality of SSSGs associated with the second BWP after a fourth time point, and the fourth time point is determined according to the third time point and a BWP switching time delay of switching the first BWP to the second BWP.

28. A communications device, characterized by The communication device includes a module or unit for performing the method of any one of claims 1-8, or a module or unit for performing the method of any one of claims 9-15, or a module or unit for performing the method of any one of claims 16-21, or a module or unit for performing the method of any one of claims 22-27.

29. A communications device, characterized by The communication device comprises at least one processor configured to cause the communication device to perform the method according to any one of claims 1-8, or to cause the communication device to perform the method according to any one of claims 9-15, or to cause the communication device to perform the method according to any one of claims 16-21, or to cause the communication device to perform the method according to any one of claims 22-27.

30. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises instructions that, when executed, cause the method of any one of claims 1-8 to be implemented, or cause the method of any one of claims 9-15 to be implemented, or cause the method of any one of claims 16-21 to be implemented, or cause the method of any one of claims 22-27 to be implemented.

31. A computer program product, characterised in that, The computer program product comprises instructions that, when executed, cause the method of any one of claims 1-8 to be implemented, or cause the method of any one of claims 9-15 to be implemented, or cause the method of any one of claims 16-21 to be implemented, or cause the method of any one of claims 22-27 to be implemented.

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