Method and apparatus for communication

Abstract

The embodiment of the invention relates to a communication method and device. In one embodiment, a method for communication includes: at a terminal device, determining a wake-up delay after receiving a Low Power-Wake Up Signal (Low Power-Wake Up Signal, LP-WUS) from a network device during monitoring of the LP-WUS; determining a sleep state during monitoring of the LP-WUS, wherein the sleep state is associated with a wake-up delay; and performing one of the following on the basis of the sleep state: not measuring and not reporting channel state information (CSI) during the period of monitoring the LP-WUS; or the CSI is measured and reported during monitoring of the LP-WUS. In this way, the terminal equipment can enter the LP-WUS monitoring state and determine wakeup delay limitation and which sleep state the terminal equipment enters, and the energy-saving gain of the terminal equipment is improved on the premise that the communication requirement is met.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and more particularly, to a method, an apparatus, a system, a computer-readable storage medium, and a computer program product for communications. Background Art

[0002] The 3rd Generation Partnership Project (3GPP) Release 18 low power project proposes a new feature, which is to design a separate low-power receiver to reduce the energy consumption of the user equipment (UE) during the blind detection of the physical downlink control channel (PDCCH).

[0003] When the network side sends data to the UE, the network side first sends a low power wake-up signal (Low Power Wake Up Signal, LP-WUS) signal to wake up the main receiver, and then the main receiver performs PDCCH blind detection and receives the corresponding data scheduling. Since the low power wake-up receiver (Low Power Wake Up Receiver, LP-WUR) usually uses a low-speed, low-precision analog to digital converter (Analog to Digital Converter, ADC), a low-precision local oscillator, and a low-complexity digital processing module, the power consumption of LP-WUR is much lower than that of the traditional new radio (New Radio, NR) main receiver. Therefore, by using LP-WUR to receive the wake-up signal and then waking up the main receiver to receive data scheduling, the purpose of reducing UE power consumption can be achieved. Summary of the invention

[0004] Example embodiments of the present disclosure provide solutions related to LP-WUS monitoring, involving communication methods, devices, systems, computer-readable storage media, and computer program products.

[0005] In a first aspect, an embodiment of the present disclosure provides a method that can be applied to a terminal device. The method includes: at the terminal device, receiving first indication information from a network device; based on determining that the first indication information indicates a first value, starting a timer, wherein the timing period of the timer is a first time period; based on determining that the timer has timed out, monitoring a low power wake-up signal LP-WUS and stopping monitoring a physical downlink control channel PDCCH; and based on determining that the first indication information indicates a second value, monitoring the PDCCH without starting the timer.

[0006] In this way, the terminal device can perform LP-WUS monitoring or PDCCH monitoring according to the instructions of the network device, thereby improving the energy saving gain of the terminal device while meeting the communication requirements.

[0007] In some embodiments, the method further includes: receiving second indication information from the network device within the first time period; based on determining that the second indication information indicates a first value, clearing the timer; and based on determining that the second indication information indicates a second value, stopping the timer. In this way, whether the terminal device enters LP-WUS monitoring can be flexibly configured according to the data transmission requirements at the network device, and the data scheduling delay can be reduced.

[0008] In some embodiments, the method further includes: pausing or clearing and pausing the timer when the first time period overlaps with the second time period; and continuing to run the timer when the first time period does not overlap with the second time period. In this way, the terminal device can be prevented from entering LP-WUS monitoring when there may be data scheduling, so that the main receiver does not need to be woken up, reducing the data scheduling delay.

[0009] In some embodiments, the second time period includes the PDCCH skipping duration or the discontinuous reception (DRX) deactivation state time. Usually after the skipping duration or the DRX deactivation state ends, the network device may have accumulated a large amount of data that needs to be sent. At this time, if the timer is still timing during the skipping duration, the terminal device will enter the LP-WUS monitoring mode after the skipping duration ends due to the timer expiration. At this time, if there is data scheduling, the terminal device needs to wake up the main receiver first, which will increase the data scheduling delay. Therefore, pausing the timer during the PDCCH skipping duration or the DRX deactivation state time can delay the terminal device from entering the LP-WUS monitoring and reduce the data scheduling delay.

[0010] In some embodiments, the method further comprises: receiving third indication information from the network device, wherein the third indication information is used to instruct the terminal device not to stop monitoring the PDCCH based on the timer. In this way, the behavior of the terminal device monitoring the PDCCH can be flexibly configured.

[0011] In some embodiments, the method further includes: based on the fourth indication information, determining the PDCCH skip duration and the monitoring behavior of the terminal device monitoring LP-WUS and monitoring PDCCH after the PDCCH skip duration ends, wherein the monitoring behavior is associated with the length of the PDCCH skip duration or the configuration parameters in the configuration information of the PDCCH skip duration. In this way, the monitoring behavior of the terminal device monitoring LP-WUS and monitoring PDCCH can be flexibly configured through the length of the PDCCH skip duration or the configuration information of the PDCCH skip duration, and the data scheduling delay or the power consumption of the terminal device can be reduced through appropriate configuration.

[0012] In a second aspect, an embodiment of the present disclosure provides a method that can be applied to a terminal device. The method includes: at the terminal device, determining a wake-up delay after receiving an LP-WUS from a network device during monitoring of the LP-WUS; determining a sleep state during monitoring of the LP-WUS, wherein the sleep state is associated with the wake-up delay; and performing one of the following based on the sleep state: not measuring and not reporting channel state information CSI during monitoring of the LP-WUS; or measuring and reporting CSI during monitoring of the LP-WUS, etc.

[0013] In this way, the terminal device can determine the wake-up delay limit and the sleep state to enter during the monitoring of LP-WUS, so as to maximize the energy saving gain of the terminal device while meeting the communication requirements.

[0014] In some embodiments, the method further includes: receiving first indication information from a network device, wherein the first indication information is used to indicate a wake-up delay.

[0015] In some embodiments, the wake-up delay is associated with configuration information of the PDCCH skip duration.

[0016] In some embodiments, determining the wake-up delay comprises: receiving a PDCCH skip duration from a network device; and determining the wake-up delay based on the PDCCH skip duration. In this way, the wake-up delay of the terminal device can be flexibly indicated by the length of the PDCCH skip duration.

[0017] In some embodiments, determining the wake-up delay comprises: receiving configuration information from a network device, wherein the configuration information comprises a configuration parameter for indicating the wake-up delay; and determining the wake-up delay based on the configuration parameter. In this way, the wake-up delay of the terminal device can be flexibly indicated by the configuration information of the PDCCH skip duration.

[0018] In some embodiments, the wake-up delay has a corresponding relationship with the sleep state, and determining the sleep state includes: determining the sleep state based on the wake-up delay and the corresponding relationship.

[0019] In some embodiments, the method further comprises: sending auxiliary information to the network device, wherein the auxiliary information comprises at least one wake-up delay.

[0020] In some embodiments, the auxiliary information further includes at least one sleep state corresponding to at least one wake-up delay, and determining the sleep state includes: receiving second indication information from the network device, wherein the second indication information is used to indicate a sleep state in the at least one sleep state; and determining the sleep state based on the second indication information. In this way, the network device can flexibly configure which sleep state the terminal device enters.

[0021] In some embodiments, determining the wake-up delay includes: determining the wake-up delay based on the sleep state and the corresponding relationship between the wake-up delay and the sleep state. In some embodiments, the method further includes: during monitoring LP-WUS, determining to monitor LP-WUS or monitor PDCCH after sending a scheduling request to the network device; and sending third indication information to the network device, wherein the third indication information is used to instruct the terminal device to monitor LP-WUS or monitor PDCCH after sending the scheduling request. In this way, the terminal device can monitor LP-WUS or monitor PDCCH after sending the scheduling request according to the communication requirements, which can reduce the data scheduling delay or reduce the power consumption of the terminal device.

[0022] In some embodiments, the method further includes: receiving fourth indication information from the network device, wherein the fourth indication information is used to instruct the terminal device to monitor the LP-WUS or the PDCCH after sending the scheduling request.

[0023] In a third aspect, an embodiment of the present disclosure provides a method that can be applied to a network device. The method includes: at the network device, sending first indication information to a terminal device, wherein the first indication information indicates a first value or a second value, the first value is used to instruct the terminal device to monitor the LP-WUS and stop monitoring the PDCCH after a first time period based on a timer, and the second value is used to instruct the terminal device to monitor the PDCCH.

[0024] In this way, the network device can effectively instruct the terminal device to monitor the LP-WUS or the PDCCH.

[0025] In some embodiments, the method further includes: sending fourth indication information to the terminal device, wherein the fourth indication information is used to indicate the PDCCH skip duration and the monitoring behavior of the terminal device to monitor LP-WUS and monitor PDCCH after the PDCCH skip duration ends, wherein the monitoring behavior is associated with the length of the PDCCH skip duration or the configuration parameters in the configuration information of the PDCCH skip duration. In this way, the network device can instruct the terminal device to monitor LP-WUS and monitor PDCCH through the length of the PDCCH skip duration or the configuration information of the PDCCH skip duration.

[0026] In a fourth aspect, an embodiment of the present disclosure provides a method that can be applied to a network device. The method includes: at the network device, indicating to a terminal device a wake-up delay after receiving an LP-WUS from the network device during monitoring of the LP-WUS, wherein the wake-up delay is associated with a sleep state of the terminal device during monitoring of the LP-WUS; and performing one of the following based on the sleep state: receiving channel state information CSI from the terminal device during monitoring of the LP-WUS by the terminal device; or not receiving channel state information CSI from the terminal device during monitoring of the LP-WUS by the terminal device.

[0027] In this way, the network device can instruct the terminal device to set a wake-up delay limit and enter a sleep state during the monitoring of LP-WUS, thereby maximizing the energy saving gain of the terminal device while meeting communication requirements.

[0028] In some embodiments, the method further comprises: during the period when the terminal device monitors the LP-WUS, not sending a PDCCH message to the terminal device. In this way, communication efficiency can be improved.

[0029] In a fifth aspect, an embodiment of the present disclosure provides a communication device, which is used to execute a unit or module of the method in the first aspect, the second aspect, the third aspect, the fourth aspect, or any of the embodiments thereof.

[0030] In a sixth aspect, an embodiment of the present disclosure provides a communication device, wherein the communication device includes a processor, wherein the processor is configured to execute the method in the first aspect, the second aspect, the third aspect, the fourth aspect, or any embodiment thereof.

[0031] In a seventh aspect, an embodiment of the present disclosure provides a communication system, which is configured to execute the method in the first aspect, the second aspect, the third aspect, the fourth aspect, or any of the embodiments thereof.

[0032] In an eighth aspect, an embodiment of the present disclosure provides a communication system. The communication system includes: a communication device for executing the method in the first aspect or the second aspect or any embodiment thereof, and a communication device for executing the method in the third aspect or the fourth aspect or any embodiment thereof.

[0033] In the ninth aspect, an embodiment of the present disclosure provides a computer-readable storage medium having instructions stored thereon, which when executed by a device causes the device to execute a method such as the first aspect, the second aspect, the third aspect, the fourth aspect, or any embodiment thereof.

[0034] In a tenth aspect, an embodiment of the present disclosure provides a computer program or a computer program product. The computer program or computer program product is tangibly stored on a computer-readable medium and includes computer-executable instructions, which, when executed, cause an apparatus to perform a method as in the first aspect, the second aspect, the third aspect, the fourth aspect, or any of its embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Several implementations of the present application are shown here in an exemplary and non-limiting manner. In the accompanying drawings:

[0036] Figure 1A A schematic diagram showing a communication system in which some embodiments of the present disclosure may be applied;

[0037] Figure 1B A schematic diagram showing the relationship between a primary receiver and a secondary receiver of a terminal device;

[0038] Figure 1C A schematic diagram of a PDCCH skipping process is shown;

[0039] Figure 2 A schematic signaling diagram showing a communication process according to some embodiments of the present disclosure;

[0040] Figure 3 A schematic diagram showing first indication information indicating monitoring of LP-WUS according to some embodiments of the present disclosure is shown;

[0041] Figure 4 A schematic diagram showing a timer timing period overlapping with a PDCCH skipping duration according to some embodiments of the present disclosure;

[0042] Figure 5 A schematic signaling diagram showing another communication process according to some embodiments of the present disclosure;

[0043] Figure 6A flow chart showing a communication process according to some embodiments of the present disclosure;

[0044] Figure 7 A flow chart showing a communication process according to some embodiments of the present disclosure;

[0045] Figure 8 A flow chart showing a communication process according to some embodiments of the present disclosure;

[0046] Fig. 9 A flow chart showing a communication process according to some embodiments of the present disclosure;

[0047] Fig.10 A schematic diagram showing the structure of a possible communication device provided according to an embodiment of the present disclosure is shown;

[0048] Fig.11 A schematic structural diagram of another possible communication device provided according to an embodiment of the present disclosure is shown.

[0049] In the various drawings, the same or similar reference numerals represent the same or similar elements. DETAILED DESCRIPTION

[0050] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0051] In the present disclosure, the term "including" and similar terms should be understood as open inclusion, i.e., "including but not limited to". The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0052] The embodiments of the present disclosure may be applied to a fourth generation (4G) communication system, such as a long term evolution (LTE) communication system, or to a fifth generation (5G) communication system, such as a 5G new radio (NR) communication system, or to various communication systems evolved after 5G, such as a sixth generation (6G) communication system. The embodiments of the present disclosure may also be applied to a Bluetooth system, a wireless fidelity (WiFi) system, a long range radio (LoRa) system, or a vehicle networking system. The embodiments of the present disclosure may also be applied to a satellite communication system, wherein the satellite communication system may be integrated with the above-mentioned communication system.

[0053] In the present disclosure, the term "network device" refers to a network-side device with wireless transceiver functions, which may include various forms of macro base stations, micro base stations (also known as small stations), relay stations, access points, etc. In systems using different wireless access technologies, the names of network devices may be different, such as Base Transceiver Station (BTS) in Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) networks, NodeB (NB) in Wideband Code Division Multiple Access (WCDMA), eNB or eNodeB (Evolutional NodeB) in Long Term Evolution (LTE), next generation NodeB (gNB) in 5G mobile communication systems, Transmission Reception Point (TRP), base stations of subsequent evolution of 3GPP, access nodes in WiFi systems, wireless relay nodes, wireless backhaul nodes, etc. The network device may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. The network device may also be a network device in a future Public Land Mobile Network (PLMN) network. The network device may also be a wearable device or a vehicle-mounted device. The network device may also be a Road Side Unit (RSU) in the Vehicle to Everything (V2X) technology.

[0054] In the present disclosure, the term "terminal device" refers to a user-side device with wireless transceiver functions, which may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication functions. The terminal device may be a mobile station (MS), a subscriber unit (subscriberunit), a cellular phone, a smart phone (smart phone), a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a wireless modem (modem), a handheld device (handset), a laptop computer (laptop computer), a machine type communication (MTC) terminal, etc.

[0055] There are some issues in the LP-WUS paging process that need further study, for example, how the network device instructs the terminal device to enter the LP-WUS monitoring state and not monitor the PDCCH; and how the network device instructs the terminal device to enter what sleep state the main receiver enters when monitoring the LP-WUS, and what wake-up delay is specified. In view of this, according to some embodiments of the present disclosure, the terminal device can receive a first indication information from the network device. If the first indication information indicates a first value, a timer is started, wherein the timing period of the timer is a first time period, and after the timer times out, the LP-WUS is monitored and the PDCCH is stopped. If the first indication information indicates a second value, the PDCCH is monitored. In this way, the terminal device can perform LP-WUS monitoring or PDCCH monitoring according to the instructions of the network device. According to some embodiments of the present disclosure, the network device can determine the wake-up delay after receiving the LP-WUS from the network device during the monitoring of the LP-WUS, and determine the sleep state during the monitoring of the LP-WUS, the sleep state is associated with the wake-up delay, and determine whether to measure and report CSI during the monitoring of the LP-WUS based on the sleep state. The network device can indicate the wake-up delay to the terminal device, and can also indicate the sleep state to the terminal device. In this way, the network device can indicate the sleep state that the main receiver enters when the terminal device monitors LP-WUS, and indicate the wake-up delay after receiving LP-WUS.

[0056] Figure 1AA schematic diagram of a communication system 100 in which some embodiments of the present disclosure may be applied is shown. Exemplarily, the communication system 100 is a mobile communication system, including a transmitting end 110 and a receiving end 120. In some embodiments, the transmitting end 110 may be a network device, such as a base station, and the receiving end 120 may be a terminal device, such as a UE. Therefore, the transmitting end 110 may also be referred to as a network device 110 or a base station 110, and the receiving end 120 may also be referred to as a terminal device 120 or a UE 120. The transmission between the transmitting end 110 and the receiving end 120 may be transmitted via a transmission medium such as radio waves.

[0057] It is important to understand that Figure 1A The scenarios, number of devices and connections therebetween shown are for illustrative purposes only and do not imply any limitation. The embodiments of the present disclosure may also be applied to other possible scenarios.

[0058] The terminal device 120 may include a primary receiver and a secondary receiver (eg, a LP-WUS receiver). Figure 1B The figure shows the relationship between the main receiver 121 and the auxiliary receiver 122 of the terminal device. When the auxiliary receiver 122 is turned on, the main receiver 121 may enter a sleep state to save energy; when the auxiliary receiver 122 receives the LP-WUS signal, the main receiver 121 is turned on to perform subsequent operations such as data reception.

[0059] When the main receiver enters different sleep states, the wake-up delay after receiving the LP-WUS signal is different. Table 1 shows a relationship between the sleep state and the wake-up delay. The relationship here is only an example. The wake-up delay may be different for different UE implementations.

[0060] Table 1

[0061]

[0062] Some embodiments of the present disclosure relate to PDCCH skipping. Figure 1C The schematic diagram of the PDCCH skipping process is shown. The network side can carry the PDCCH skipping command through the downlink control information (DCI) of the formats 0_1, 0_2, 1_1 and 1_2. Figure 1C This section describes the specific process of PDCCH skipping.

[0063] When the UE is configured with PDCCHSkippingDurationList but searchSpaceGroupIdList-R17 is not configured, the UE executes the PDCCH skip mode of R17, and the number of PDCCHSkippingDurationList elements can be 1, 2, or 3. When there is only 1 element in PDCCHSkippingDurationList and the DCI monitoring adaptation field has only 1 bit, a bit value of 0 can indicate no skipping, and a bit value of 1 can indicate skipping. When there are 2 or 3 elements in PDCCHSkippingDurationList and the DCI monitoring adaptation field has 2 bits, a bit value of 00 can indicate no skipping, a bit value of 01 can indicate skipping the time indicated by the first element in PDCCHSkippingDurationList, a bit value of 10 can indicate skipping the time indicated by the second element in PDCCHSkippingDurationList, and a bit value of 11 can indicate skipping the time indicated by the third element in PDCCHSkippingDurationList. PDCCH skipping has no switching time, that is, when the UE receives the skip indication, it takes effect in the next time slot and does not monitor PDCCH.

[0064] When the UE is configured with PDCCHSkippingDurationList and searchSpaceGroupIdList-R17, the UE performs PDCCH switching + skip mode of R17. When PDCCHSkippingDurationList has only one element, searchSpaceGroupIdList-R17 has two values, and the following information is indicated by DCI: 00: group 0; 01: group 1, plus timer; 10: skip; 11: reserve. When PDCCHSkippingDurationList has only two elements, searchSpaceGroupIdList-R17 has two values, and the following information is indicated by DCI: 00: group 0; 01: group 1, plus timer; 10: skip the first element in PDCCHSkippingDurationList; 11: skip the second element in PDCCHSkippingDurationList.

[0065] Figure 2FIG. 2 shows a schematic signaling diagram of a communication process 200 according to some embodiments of the present disclosure. Figure 1A To describe Figure 2 , for example, process 200 may involve network device 110 and terminal device 120 .

[0066] refer to Figure 2 The network device 110 sends 201 a first indication message 202 to the terminal device 120. The first indication message 202 may indicate a first value or a second value. The first value is used to instruct the terminal device 120 to monitor the LP-WUS and stop monitoring the PDCCH after a first time period based on the timer. The second value is used to instruct the terminal device 120 to monitor the PDCCH without starting the timer.

[0067] The terminal device 120 receives 203 the first indication information, and if the first indication information indicates a first value, the terminal device 120 starts 204 a timer, the timing period of the timer being a first time period. Based on determining that the timer has timed out, the terminal device 120 monitors 205 the LP-WUS and stops monitoring the PDCCH. If the first indication information indicates a second value, the terminal device 120 monitors 206 the PDCCH without starting the timer.

[0068] That is, the terminal device 120 receives the first indication information sent by the network device 110. If the first indication information indicates a first value, the terminal device 120 stops monitoring the PDCCH and starts monitoring the LP-WUS after a first time period. The first time period can also be called the effective time. Figure 3 A schematic diagram showing the first indication information indicating monitoring of LP-WUS is shown. Figure 3 As shown, the first indication information indicates a first value, then after the first time period, the terminal device 120 starts to monitor the LP-WUS and stops monitoring the PDCCH.

[0069] In some embodiments, the first indication information may be indicated by 1-bit information, the first value may be that the bit is 1, the second value may be that the bit is 0, and vice versa. For example, when the bit is 1, it indicates that the terminal device enters LP-WUS monitoring and stops PDCCH blind detection after the effective time after receiving the first indication information, and when the bit is 0, it indicates that the terminal device continues to monitor PDCCH after receiving the first indication information.

[0070] In some embodiments, during the first time period, the terminal device 120 may also receive second indication information from the network device 110. If the second indication information indicates the first value, the terminal device 120 may clear the timer, i.e., restart the timing; if the second indication information indicates the second value, the terminal device 120 may stop the timer or clear the timer and stop the timer, i.e., continue to monitor the PDCCH.

[0071] In some embodiments, if the terminal device 120 receives a PDCCH message for data scheduling within the first time period, the terminal device 120 also pauses the timer or clears the timer and stops the timer, that is, continues to monitor the PDCCH. In some embodiments, if the terminal device 120 receives a PDCCH message for data scheduling within the first time period, the terminal device 120 also clears the timer and restarts the timer. One form of expression of the above-mentioned PDCCH for data scheduling may be that the PDCCH for data scheduling does not carry the first, second, and third indication information.

[0072] For example, in the first time period, if the terminal device receives a PDCCH for data scheduling or receives a second indication message sent by the network device, the terminal device still performs PDCCH monitoring after the first time period. The purpose of this operation is that after the network device sends the first indication message, another batch of data may suddenly arrive and be ready to be sent. At this time, if the terminal device stops PDCCH monitoring and starts LP-WUS monitoring after the first time period times out, the data scheduling delay will be increased.

[0073] Furthermore, the second indication information may share a bit with the first indication information, that is, within the first time period, when the bit is 1, it indicates that the terminal device enters LP-WUS monitoring and stops PDCCH blind detection after the effective time after receiving the indication information; when the bit is 0, it indicates that the terminal device continues to monitor PDCCH after receiving the indication information.

[0074] In some embodiments, when the first time period overlaps with the second time period, the timer is paused or the timer is cleared and paused, and when the first time period does not overlap with the second time period, the timer continues to run. The second time period includes the PDCCH skip duration or the DRX deactivation state time.

[0075] In one implementation, the terminal device can automatically stop monitoring PDCCH and start LP-WUS monitoring based on a certain judgment condition. The certain condition can be that the terminal device automatically stops monitoring PDCCH and starts monitoring LP-WUS after not receiving other PDCCH messages for data scheduling within a certain period of time. For example, if the timer timing period (i.e., within the first time period) overlaps with other moments when PDCCH messages for data scheduling are not monitored, such as when it overlaps with the PDCCH skip duration or the DRX deactivation state, the timer stops timing and continues timing at non-overlapping moments. The purpose of the above operation is that usually after the skip duration or the DRX deactivation state ends, the network device may have accumulated a large amount of data that needs to be sent. At this time, if the timer is still timing during the skip duration, the terminal device will enter the LP-WUS monitoring mode after the skip duration ends due to the timer timeout. At this time, if there is data scheduling, the terminal device needs to wake up the main receiver first, increasing the data scheduling delay. Furthermore, the operation when the timer timing period overlaps with the skip duration or the DRX deactivation state may be different. For example, when the timer timing period overlaps with the skip duration, the timer stops timing; when it overlaps with the DRX deactivation state, the timer stops timing and is cleared.

[0076] In another implementation, the terminal device may automatically stop monitoring the PDCCH and start monitoring the LP-WUS based on a certain judgment condition, and the certain condition may be that the terminal device automatically stops monitoring the PDCCH and starts monitoring the LP-WUS after not receiving other PDCCH messages for data scheduling within a certain period of time. For example, if the timer timing period (i.e., within the first time period) overlaps with other moments when the PDCCH messages for data scheduling are not monitored, such as when it overlaps with the PDCCH skip duration or the DRX deactivation state, the timer stops timing, and after the overlap ends, the timer is reset and restarted.

[0077] Figure 4 FIG. 2 is a schematic diagram showing the overlap between the timer timing period and the PDCCH skipping duration. Figure 4 As shown, if the PDCCH skip duration timer continues to count, then after the timer expires, the terminal device turns off the main receiver and monitors LP-WUS. At the end of the skip duration, the terminal device is in LP-WUS monitoring mode. At this time, if there is data to be received, the terminal device needs to trigger the main receiver to wake up first, which will increase the data scheduling delay.

[0078] In some embodiments, the terminal device may also automatically stop monitoring the PDCCH and start LP-WUS monitoring based on a certain judgment condition without considering the first indication information. For example, after receiving a PDCCH message for data scheduling, the terminal device may start a timer, and the timer starts counting from 0. If the terminal device receives a PDCCH message for data scheduling during the timer counting period, the timer is reset. When the timer times out, the UE stops monitoring the PDCCH and starts monitoring the LP-WUS.

[0079] In some embodiments, the terminal device receives third indication information from the network device, and the third indication information is used to instruct the terminal device not to stop monitoring the PDCCH based on the timer. For example, when the network device does not want the terminal device to stop monitoring the PDCCH by judging the condition, the network device can send the third indication information to instruct the terminal device not to stop monitoring the PDCCH based on the judgment condition.

[0080] The first indication information, the second indication information, and the third indication information may be carried by downlink control information (Downlink Control Information, DCI)\Media Access Control-Control Element (Media Access Control-Control Element, MAC CE). Furthermore, if carried by DCI, the above-mentioned first indication information, the second indication information, and the third indication information may be carried with the PDCCH message of data scheduling, that is, the above-mentioned first indication information, the second indication information, and the third indication information are carried by format 0-1\format 1-1 DCI. The advantage of carrying by format 0-1 or format 1-1 is that the network device does not need to send additional DCI to carry the first indication information, the second indication information, and the third indication information, saving signaling overhead.

[0081] Continue to refer Figure 2 , the network device 110 may send 207 fourth indication information 208 to the terminal device 120, the fourth indication information being used to indicate the PDCCH skip duration and the monitoring behavior of the terminal device 120 monitoring LP-WUS and monitoring PDCCH after the PDCCH skip duration ends, and the monitoring behavior may be associated with the length of the PDCCH skip duration or the configuration parameters in the configuration information of the PDCCH skip duration. The terminal device 120 receives 209 the fourth indication information, and based on the fourth indication information, determines 210 the PDCCH skip duration and the monitoring behavior of the terminal device 120 monitoring LP-WUS and monitoring PDCCH after the PDCCH skip duration ends.

[0082] For example, LP-WUS monitoring in the connected state can be bound to the PDCCH skipping feature. Therefore, the terminal device can have four monitoring behaviors, namely, whether to monitor LP-WUS during the skipping duration, and whether to monitor LP-WUS after the skipping duration ends. As an example, the four monitoring behaviors are shown in Table 2 below.

[0083] Table 2

[0084] Skip Duration After the skip duration has expired Monitoring LP-WUS Monitoring LP-WUS Monitoring LP-WUS Monitoring PDCCH LP-WUS is not monitored Monitoring LP-WUS LP-WUS is not monitored Monitoring PDCCH

[0085] The network device may indicate the monitoring behavior of the terminal device through the fourth indication information. Optionally, one indication method is that the network device indicates the four monitoring behaviors in Table 2 through 2-bit information, and the two-bit information may be carried by DCI or MAC CE. Optionally, one indication method is that the network device directly indicates the monitoring behavior of the terminal device through high-layer signaling.

[0086] Optionally, one indication method is to indicate the monitoring behavior of the terminal device by the length of the skip duration, that is, the fourth indication information may indicate the length of the skip duration. For example, when the predefined skip duration is less than x, the terminal device does not perform LP-WUS monitoring during the skip duration. The reason is that the shorter skip duration is similar to the main receiver wake-up delay. Even if the terminal device is awakened by LP-WUS during the skip duration, the terminal device may not be able to monitor the PDCCH until the skip duration ends, and there is no obvious improvement in data transmission delay, which is contrary to the purpose of monitoring LP-WUS during the skip duration. When the skip duration is greater than or equal to x, the terminal device can perform LP-WUS monitoring during the skip duration.

[0087] Optionally, one indication method is to add four state configurations to the skip configuration, and indicate through DCI which skip configuration the terminal device uses while indicating the monitoring behavior of the terminal device. That is, add a type configuration parameter in the skip configuration, and an example is shown as follows:

[0088]

[0089] In this indication method, the fourth indication information may be the above-mentioned type configuration parameter.

[0090] The above reference process 200 describes a scheme according to some embodiments of the present disclosure, in which the terminal device can perform LP-WUS monitoring or PDCCH monitoring according to the instruction of the network device, and the network device can effectively indicate the LP-WUS monitoring status of the terminal device.

[0091] Figure 5FIG. 5 is a schematic signaling diagram of another communication process 500 according to some embodiments of the present disclosure. Figure 1A To describe Figure 5 , for example, process 500 may involve network device 110 and terminal device 120 .

[0092] The main receiver of the terminal device has different wake-up delays in different sleep states. In deep sleep, the energy saving effect of the terminal device is good, but the wake-up delay is long. Similarly, in shallow sleep, the energy saving effect of the terminal device is poor, but the wake-up delay is short. Therefore, there is a contradiction between sleep depth and data transmission delay. The network device or the terminal device can dynamically configure the sleep state that the main receiver of the terminal device enters during the LP-WUS monitoring period based on the service type (different services have different requirements for delay).

[0093] refer to Figure 5 , the network device 110 may indicate 501 to the terminal device 120 a wake-up delay after receiving an LP-WUS from the network device 110 during monitoring of the LP-WUS. The terminal device 120 may determine the wake-up delay.

[0094] In some embodiments, the terminal device 120 may receive first indication information from the network device 110, where the first indication information is used to indicate a wake-up delay. The terminal device 120 may determine the wake-up delay based on the first indication information. For example, the first indication information may be bound to an index table, where the first indication information indicates a row of the index table, where each row represents a configuration of a wake-up delay for the terminal device. As an example, the index table is shown in Table 3 below.

[0095] Table 3

[0096] index Wake-up delay 0 x1 1 x2 2 x3

[0097] In some embodiments, the wake-up delay may be associated with configuration information of a PDCCH skip duration. The terminal device 120 may receive the PDCCH skip duration from the network device 110, and determine the wake-up delay based on the PDCCH skip duration. Optionally, the terminal device 120 may receive configuration information of the PDCCH skip duration from the network device 110, the configuration information including a configuration parameter for indicating the wake-up delay, and the terminal device 120 determines the wake-up delay based on the configuration parameter.

[0098] For example, during LP-WUS monitoring, the wake-up delay required by the terminal device when entering PDCCH monitoring can be bound to the skip configuration. In one implementation, the relationship between the skip duration and the wake-up delay can be predefined, and an example relationship is shown in Table 4 below.

[0099] Table 4

[0100] Skip Duration Wake-up delay <y1 x1 <y2 and>y1 x2 >y2 x3

[0101] The network device may indicate the skipping duration of the terminal device through the DCI, and indirectly indicate the wake-up delay required for the terminal device to enter the PDCCH monitoring during the LP-WUS monitoring period.

[0102] In one implementation, a type parameter is added to the configuration SCS-specificDuration parameter to indicate the wake-up delay that the terminal device needs to meet when waking up the main receiver during LP-WUS monitoring. An example is shown as follows:

[0103]

[0104] The unit of x may be milliseconds (ms), because for different sub-carrier spaces (SCS), the wake-up delay of the main receiver in the same sleep state is the same.

[0105] Continue to refer Figure 5 , the terminal device 120 may also determine 504 a sleep state during monitoring the LP-WUS, and the sleep state may be associated with the wake-up delay. In some embodiments, the wake-up delay and the sleep state may have a corresponding relationship, and the terminal device 120 may determine the sleep state based on the wake-up delay and the corresponding relationship. In some embodiments, the terminal device 120 may also determine the wake-up delay based on the sleep state and the corresponding relationship.

[0106] For example, the sleep state can be bound to the wake-up delay, that is, the wake-up delay within a certain range corresponds to a certain sleep level. Therefore, the binding relationship between the sleep state and the wake-up delay can be predefined or configured, and an example binding relationship is shown in Table 5 below.

[0107] Table 5

[0108] Wake-up delay range Sleep Level <y1 L1 <y2 and>y1 L2 >y2 L3

[0109] In some embodiments, the terminal device 120 may further send 503 auxiliary information to the network device 110, and the auxiliary information may include at least one wake-up delay. Optionally, the auxiliary information may also include at least one sleep state corresponding to the at least one wake-up delay. The network device 110 may send second indication information to the terminal device 120, and the second indication information is used to indicate a sleep state in at least one sleep state, and the terminal device 120 may determine the sleep state based on the second indication information.

[0110] For example, the network device sends a second indication information to indicate the sleep state that the terminal device can enter during the LP-WUS monitoring period. The main receiver operates differently in different sleep states. For example, when the sleep state is deep, the main receiver may not measure the channel state information reference signal (CSI-RS) and report CSI during the LP-WUS monitoring period. When the sleep state is shallow, the main receiver may measure the CSI-RS and report CSI during the LP-WUS monitoring period.

[0111] Continue to refer Figure 5 , the terminal device 120 may not measure and report CSI during monitoring LP-WUS based on the sleep state, or measure and report 505 CSI during monitoring LP-WUS. Accordingly, the network device 110 may receive 506 CSI from the terminal device 120 during the period when the terminal device monitors LP-WUS based on the sleep state of the terminal device 120, or not receive CSI from the terminal device 120 during the period when the terminal device monitors LP-WUS. For example, the terminal device may report a non-periodic CSI report (CSI report) during monitoring LP-WUS based on the sleep state, not report a periodic CSI report and a semi-persistent CSI report, report CSI other than Reference Signal Received Power (RSRP), or report RSRP, etc.

[0112] One implementation is: when the sleep level is L1, the terminal device reports all configured CSI information, and when the sleep level is L2, the terminal device reports periodic CSI information, that is, the CSI report with the high-level parameter reportConfigType set to 'periodic'. When the sleep level is L3, the terminal device does not report any CSI information.

[0113] During the LP-WUS monitoring period, if the terminal device finds that there is uplink data to be sent, it will send an uplink scheduling request (Scheduling Request, SR) to the network device. After sending the SR, the terminal device will monitor the PDCCH message sent by the network device. The PDCCH message is used to allocate uplink transmission time and frequency resources to the UE. The network device can determine the behavior of the terminal device after sending the SR according to the type of service (different tolerance for data delay). The behavior of the terminal device after sending the SR can be decided by the terminal device or the network device, or both.

[0114] In some embodiments, during monitoring of LP-WUS, the terminal device determines to monitor LP-WUS or monitor PDCCH after sending a scheduling request to the network device, and sends third indication information to the network device, wherein the third indication information is used to instruct the terminal device to monitor LP-WUS or monitor PDCCH after sending the scheduling request.

[0115] For example, when the terminal device believes that the service is not sensitive to delay at this time, the terminal device can automatically enter LP-WUS monitoring and not monitor PDCCH after sending SR. On the contrary, when the terminal device believes that the service is sensitive to delay at this time, the terminal device can continue to monitor PDCCH after sending SR. The terminal device sends a third indication information through the PUCCH channel, and the indication information is used to inform the network device that the terminal device will monitor LP-WUS or PDCCH next after sending SR. One implementation method is: the third indication information can be sent on the same PUCCH as SR.

[0116] In some embodiments, during monitoring of LP-WUS, the terminal device receives fourth indication information from the network device, and the fourth indication information is used to instruct the terminal device to monitor LP-WUS or monitor PDCCH after sending a scheduling request. The fourth indication information can be carried by DCI, MAC CE, Radio Resource Control (RRC), etc.

[0117] In some embodiments, the network device may not send a PDCCH message to the terminal device during the period when the terminal device monitors the LP-WUS.

[0118] The above reference process 500 describes a scheme according to some embodiments of the present disclosure, in which the network device can instruct the terminal device that when a wake-up signal is received during the next LP-WUS monitoring period, the main receiver must meet the delay limit for waking up, which is equivalent to configuring different wake-up delay levels for the terminal device. During different LP-WUS monitoring periods, the terminal device has different operations at different wake-up delay levels. For example, if the wake-up delay is long, the main receiver may not report CSI measurement results during the LP-WUS monitoring period; if the wake-up delay is short, the main receiver may report CSI measurement results during the LP-WUS monitoring period. During the LP-WUS monitoring period, if the terminal device sends a valid SR, whether the terminal device exits the LP-WUS monitoring after sending the SR and turns on the main receiver to receive the PDCCH can be indicated by the network device.

[0119] According to the solutions of some embodiments of the present disclosure, the network device can instruct the terminal device to set a wake-up delay limit and enter a sleep state, so as to maximize the energy saving gain of the terminal device while meeting communication requirements.

[0120] Figure 6 FIG. 6 is a flow chart showing a communication process 600 according to some embodiments of the present disclosure. Figures 1A to 2 To describe Figure 6 For example, the communication process 600 may be performed as follows: Figures 1A to 2 It is implemented at the terminal device 120 shown.

[0121] refer to Figure 6 At 610, the terminal device 120 receives first indication information from the network device 110. At 620, the terminal device 120 determines a value indicated by the first indication information. Based on determining that the first indication information indicates a first value, at 630, a timer is started, wherein the timing period of the timer is a first time period. At 640, based on determining that the timer has timed out, the terminal device 120 monitors the LP-WUS and stops monitoring the PDCCH. Based on determining that the first indication information indicates a second value, at 650, the terminal device 120 monitors the PDCCH.

[0122] In some embodiments, the terminal device 120 receives second indication information from the network device within a first time period, clears the timer based on determining that the second indication information indicates a first value, and pauses the timer based on determining that the second indication information indicates a second value.

[0123] In some embodiments, when the first time period overlaps with the second time period, the terminal device 120 pauses the timer or clears and pauses the timer, and when the first time period does not overlap with the second time period, the terminal device 120 continues to run the timer. In some embodiments, the second time period includes a PDCCH skip duration or a discontinuous reception DRX deactivation state time.

[0124] In some embodiments, the terminal device 120 receives third indication information from the network device 110, where the third indication information is used to instruct the terminal device not to stop monitoring the PDCCH based on a timer.

[0125] In some embodiments, the terminal device 120 receives fourth indication information from the network device 110, and based on the fourth indication information, determines the PDCCH skip duration and the monitoring behavior of the terminal device monitoring LP-WUS and monitoring PDCCH after the PDCCH skip duration ends, wherein the monitoring behavior is associated with the length of the PDCCH skip duration or the configuration parameters in the configuration information of the PDCCH skip duration.

[0126] Figure 7 FIG. 7 is a flow chart showing a communication process 700 according to some embodiments of the present disclosure. Figures 1A to 5 To describe Figure 7 For example, the communication process 700 may be performed as follows: Figures 1A to 5 It is implemented at the terminal device 120 shown.

[0127] refer to Figure 7 At 710, the terminal device 120 determines a wake-up delay after receiving an LP-WUS from the network device 110 during monitoring of the LP-WUS. At 720, the terminal device 120 determines a sleep state during monitoring of the LP-WUS, wherein the sleep state is associated with the wake-up delay. At 730, based on the sleep state, the terminal device 120 performs one of the following: not measuring and not reporting channel state information CSI during monitoring of the LP-WUS; or measuring and reporting CSI during monitoring of the LP-WUS.

[0128] In some embodiments, the terminal device 120 receives first indication information from the network device 110, where the first indication information is used to indicate a wake-up delay.

[0129] In some embodiments, the wake-up delay is associated with configuration information of a PDCCH skip duration. In some embodiments, the terminal device 120 receives the PDCCH skip duration from the network device 110, and determines the wake-up delay based on the PDCCH skip duration. In some embodiments, the terminal device 120 receives the configuration information from the network device 110, the configuration information includes a configuration parameter for indicating the wake-up delay, and determines the wake-up delay based on the configuration parameter.

[0130] In some embodiments, the wake-up delay has a corresponding relationship with the sleep state, and the terminal device 120 determines the sleep state based on the wake-up delay and the corresponding relationship.

[0131] In some embodiments, the terminal device 120 sends auxiliary information to the network device 110, the auxiliary information including at least one wake-up delay. In some embodiments, the auxiliary information also includes at least one sleep state corresponding to the at least one wake-up delay, and the terminal device 120 receives second indication information from the network device 110, the second indication information is used to indicate a sleep state in the at least one sleep state, and determines the sleep state based on the second indication information.

[0132] In some embodiments, during monitoring of LP-WUS, the terminal device 120 determines to monitor LP-WUS or monitor PDCCH after sending a scheduling request to the network device, and sends third indication information to the network device 110, where the third indication information is used to instruct the terminal device to monitor LP-WUS or monitor PDCCH after sending the scheduling request.

[0133] In some embodiments, the terminal device 120 receives fourth indication information from the network device 110, where the fourth indication information is used to instruct the terminal device to monitor the LP-WUS or the PDCCH after sending the scheduling request.

[0134] Figure 8 FIG. 8 is a flow chart showing a communication process 800 according to some embodiments of the present disclosure. Figures 1A to 2 To describe Figure 8 For example, the communication process 800 may be performed as follows: Figures 1A to 2 The network device 110 is shown as being implemented.

[0135] refer to Figure 8 At 810, the network device 110 sends a first indication message to the terminal device 120, where the first indication message indicates a first value or a second value, where the first value is used to instruct the terminal device to monitor LP-WUS and stop monitoring PDCCH after a first time period based on a timer, and the second value is used to instruct the terminal device to monitor PDCCH.

[0136] In some embodiments, the network device 110 sends fourth indication information to the terminal device 120, and the fourth indication information is used to indicate the PDCCH skip duration and the monitoring behavior of the terminal device to monitor LP-WUS and monitor PDCCH after the PDCCH skip duration ends, wherein the monitoring behavior is associated with the length of the PDCCH skip duration or the configuration parameters in the configuration information of the PDCCH skip duration.

[0137] Fig. 9 FIG. 9 is a flow chart showing a communication process 900 according to some embodiments of the present disclosure. Figures 1A to 5 To describe Fig. 9 For example, the communication process 900 may be performed as follows: Figures 1A to 5 The network device 110 is shown as being implemented.

[0138] refer to Fig. 9 At 910, the network device 110 indicates to the terminal device 120 a wake-up delay after receiving an LP-WUS from the network device 110 during monitoring of the LP-WUS, wherein the wake-up delay is associated with a sleep state of the terminal device during monitoring of the LP-WUS.

[0139] In some embodiments, the network device 110 does not send a PDCCH message to the terminal device 120 during the period when the terminal device 120 monitors the LP-WUS.

[0140] Fig.10 and Fig.11 The following is a schematic diagram of the structure of possible communication devices provided by the embodiments of the present disclosure. These communication devices can be used to implement the functions of the network device or terminal device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present disclosure, the communication device can be as follows: Figure 1A The network device 110 or terminal device 120 shown may also be a module (such as a chip) applied to the network device or the terminal device.

[0141] like Fig.10 As shown, the communication device 1000 includes a transceiver unit 1020. The communication device 1000 may also include a processing unit 1010 for processing data or other data sent or received by the transceiver unit 1020. The communication device 1000 is used to implement the above Figure 2 or Figures 5 to 9 The functions of the network device or the terminal device in the embodiments shown in FIG.

[0142] When the communication device 1000 is used to implement Figure 2 or Figure 6 When the functions of the terminal device in the embodiment shown are: the transceiver unit 1020 is used to receive the first indication information; the processing unit 1010 is used to start the timer based on determining that the first indication information indicates a first value, wherein the timing period of the timer is a first time period; the processing unit 1010 is also used to monitor the LP-WUS and stop monitoring the PDCCH based on determining that the timer has timed out; the processing unit 1010 is also used to monitor the PDCCH based on determining that the first indication information indicates a second value.

[0143] When the communication device 1000 is used to implement Figure 2 or Figure 8 The function of the network device in the embodiment shown is: the transceiver unit 1020 is used to send a first indication information, wherein the first indication information indicates a first value or a second value, the first value is used to instruct the terminal device to monitor LP-WUS and stop monitoring PDCCH after a first time period based on the timer, and the second value is used to instruct the terminal device to monitor PDCCH.

[0144] When the communication device 1000 is used to implement Figure 5 or Figure 7 The functions of the terminal device in the illustrated embodiment are as follows: the processing unit 1010 is used to determine the wake-up delay after receiving the LP-WUS from the network device during monitoring of the LP-WUS; determine the sleep state during monitoring of the LP-WUS, wherein the sleep state is associated with the wake-up delay; and perform one of the following based on the sleep state: not measuring and not reporting CSI during monitoring of the LP-WUS; or measuring and reporting CSI during monitoring of the LP-WUS.

[0145] When the communication device 1000 is used to implement Figure 2 or Figure 5 or Fig. 9In the illustrated embodiment, the functions of the network device are as follows: the transceiver unit 1020 is used to indicate the wake-up delay after receiving the LP-WUS from the network device during the monitoring of the LP-WUS, wherein the wake-up delay is associated with the sleep state of the terminal device during the monitoring of the LP-WUS; the processing unit 1010 is used to perform one of the following based on the sleep state: not measuring and not reporting CSI during the monitoring of the LP-WUS; or measuring and reporting CSI during the monitoring of the LP-WUS.

[0146] For more detailed description of the transceiver unit 1020 and the processing unit 1010, please refer to Figure 2 or Figures 5 to 9 The relevant description is shown in the embodiment.

[0147] like Fig.11 As shown, the communication device 1100 includes a processor 1110 and an interface circuit 1120. The processor 1110 and the interface circuit 1120 are coupled to each other. It is understood that the interface circuit 1120 can be a transceiver or an input-output interface. Optionally, the communication device 1100 may also include a memory 1130 for storing instructions executed by the processor 1110 or storing input data required by the processor 1110 to execute instructions or storing data generated after the processor 1110 executes instructions.

[0148] When the communication device 1100 is used to implement Figure 2 or Figure 5 or Fig. 9 In the process shown, the interface circuit 1120 is used to implement the functions of the above-mentioned transceiver unit 1020.

[0149] When the above communication device is a chip applied to a terminal device, the terminal chip implements the functions of the terminal device in the above method embodiment. The terminal chip receives information sent by the network device to the terminal device through other modules in the terminal (such as a radio frequency module or an antenna); or the terminal chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device.

[0150] When the above-mentioned communication device is a module applied to a network device, the network device module implements the function of the network device in the above-mentioned method embodiment. The network device module receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or, the network device module sends information to other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device. The network device module here can be a baseband chip of a base station, or a CU, DU or other module, or a device under an open radio access network (O-RAN) architecture, such as an open CU, an open DU and other devices.

[0151] It is understood that the processor in the embodiments of the present disclosure may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0152] The method steps in the embodiments of the present disclosure can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also exist in a base station or a terminal as discrete components.

[0153] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may 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 program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0154] In the various embodiments of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0155] In the present disclosure, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B may be singular or plural. In the text description of the present disclosure, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of the present disclosure, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" may represent: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0156] It is understood that the various numbers involved in the embodiments of the present disclosure are only for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A method comprising: At the terminal device, receiving first indication information from the network device; Based on determining that the first indication information indicates a first value, starting a timer, wherein the timing period of the timer is a first time period; Based on determining that the timer has expired, monitoring the low power wake-up signal LP-WUS and stopping monitoring the physical downlink control channel PDCCH; and Based on determining that the first indication information indicates a second value, the PDCCH is monitored.

2. The method according to claim 1, further comprising: receiving second indication information from the network device within the first time period; Based on determining that the second indication information indicates a first value, clearing the timer; as well as Based on determining that the second indication information indicates a second value, the timer is stopped.

3. The method according to claim 1 or 2, further comprising: When the first time period overlaps with the second time period, pausing the timer or clearing the timer and pausing it; as well as When the first time period does not overlap with the second time period, the timer continues to run. 4 . The method according to claim 3 , wherein the second time period comprises a PDCCH skipping duration or a discontinuous reception (DRX) deactivated state time.

5. The method according to any one of claims 1 to 4, further comprising: Receive third indication information from the network device, wherein the third indication information is used to instruct the terminal device not to stop monitoring the PDCCH based on the timer.

6. The method according to any one of claims 1 to 5, further comprising: receiving fourth indication information from the network device; as well as Based on the fourth indication information, the PDCCH skip duration and the monitoring behavior of the terminal device to monitor the LP-WUS and the PDCCH after the PDCCH skip duration ends are determined, wherein the monitoring behavior is associated with the length of the PDCCH skip duration or the configuration parameters in the configuration information of the PDCCH skip duration.

7. A method comprising: At the terminal device, determining a wake-up delay after receiving the low power wake-up signal LP-WUS from the network device during monitoring of the LP-WUS; determining a sleep state during monitoring the LP-WUS, wherein the sleep state is associated with the wake-up delay; as well as Based on the sleep state, one of the following is performed: Not measuring and not reporting channel state information CSI during monitoring of the LP-WUS; or The CSI is measured and reported during monitoring of the LP-WUS.

8. The method according to claim 7, further comprising: First indication information is received from the network device, wherein the first indication information is used to indicate the wake-up delay.

9. The method according to claim 7 or 8, wherein the wake-up delay is associated with configuration information of a physical downlink control channel (PDCCH) skip duration.

10. The method of claim 9, wherein determining the wake-up delay comprises: receiving the PDCCH skip duration from the network device; as well as The wake-up delay is determined based on the PDCCH skip duration.

11. The method of claim 9, wherein determining the wake-up delay comprises: receiving the configuration information from the network device, wherein the configuration information includes a configuration parameter for indicating the wake-up delay; as well as Based on the configuration parameters, the wake-up delay is determined.

12. The method according to any one of claims 7 to 11, wherein the wake-up delay has a corresponding relationship with the sleep state, and determining the sleep state comprises: The sleep state is determined based on the wake-up delay and the corresponding relationship.

13. The method according to any one of claims 7 to 11, further comprising: Auxiliary information is sent to the network device, wherein the auxiliary information includes at least one wake-up delay.

14. The method of claim 13, wherein the auxiliary information further includes at least one sleep state corresponding to the at least one wake-up delay, and determining the sleep state comprises: receiving second indication information from the network device, wherein the second indication information is used to indicate a sleep state in the at least one sleep state; as well as Based on the second indication information, the sleep state is determined.

15. The method according to any one of claims 7 to 14, further comprising: During monitoring of the LP-WUS, determining to monitor the LP-WUS or to monitor the PDCCH after sending a scheduling request to the network device; as well as Sending third indication information to the network device, wherein the third indication information is used to instruct the terminal device to monitor the LP-WUS or the PDCCH after sending the scheduling request.

16. The method according to any one of claims 7 to 15, further comprising: Receive fourth indication information from the network device, wherein the fourth indication information is used to instruct the terminal device to monitor the LP-WUS or the PDCCH after sending the scheduling request.

17. A method comprising: At a network device, first indication information is sent to a terminal device, wherein the first indication information indicates a first value or a second value, the first value is used to instruct the terminal device to monitor a low power wake-up signal LP-WUS and stop monitoring a physical downlink control channel PDCCH after a first time period based on a timer, and the second value is used to instruct the terminal device to monitor the PDCCH.

18. The method according to claim 17, further comprising: Send fourth indication information to the terminal device, wherein the fourth indication information is used to indicate the PDCCH skipping duration and the monitoring behavior of the terminal device to monitor the LP-WUS and the PDCCH after the PDCCH skipping duration ends, wherein the monitoring behavior is associated with the length of the PDCCH skipping duration or the configuration parameters in the configuration information of the PDCCH skipping duration.

19. A method comprising: At the network device, indicating to the terminal device a wake-up delay after receiving the low power wake-up signal LP-WUS from the network device during monitoring of the LP-WUS, wherein the wake-up delay is associated with a sleep state of the terminal device during monitoring of the LP-WUS; and Based on the sleep state, one of the following is performed: During the period when the terminal device monitors the LP-WUS, receiving channel state information CSI from the terminal device; or During the period when the terminal device monitors the LP-WUS, channel state information CSI is not received from the terminal device.

20. The method according to claim 19, further comprising: During the period when the terminal device monitors the LP-WUS, no PDCCH message is sent to the terminal device.

21. A communication device, comprising: A unit or module for executing the method as claimed in any one of claims 1 to 6, or a unit or module for executing the method as claimed in any one of claims 7 to 16, or a unit or module for executing the method as claimed in any one of claims 17 to 18, or a unit or module for executing the method as claimed in any one of claims 19 to 20.

22. A communication device, comprising: A processor configured to execute the method as claimed in any one of claims 1 to 6, or configured to execute the method as claimed in any one of claims 7 to 16, or configured to execute the method as claimed in any one of claims 17 to 18, or configured to execute the method as claimed in any one of claims 19 to 20.

23. A computer-readable storage medium storing instructions, which, when executed by a device, causes the device to perform the method as described in any one of claims 1 to 6, or causes the device to perform the method as described in any one of claims 7 to 16, or causes the device to perform the method as described in any one of claims 17 to 18, or causes the device to perform the method as described in any one of claims 19 to 20.

24. A computer program product, comprising instructions, which, when executed by a device, cause the device to perform the method as claimed in any one of claims 1 to 6, or cause the device to perform the method as claimed in any one of claims 7 to 16, or cause the device to perform the method as claimed in any one of claims 17 to 18, or cause the device to perform the method as claimed in any one of claims 19 to 20.

25. A communication system comprising a communication device for executing the method as described in any one of claims 1 to 6, and a communication device for executing the method as described in any one of claims 17 to 18; or a communication device for executing the method as described in any one of claims 7 to 16, and a communication device for executing the method as described in any one of claims 19 to 20.

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