Communication method, apparatus, device, storage medium, and program product

Abstract

The application provides a communication method, device, equipment, storage medium and program product, wherein the communication method comprises: listening to a paging indication physical downlink control channel (PDCCH) to obtain indication information; and determining the state of at least one reference signal or determining whether to listen to the paging PDCCH according to the indication information, the state being an available state or an unavailable state. The terminal device can determine the state of the reference signal according to the reference signal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to a communication method, device, equipment, storage medium and program product. BACKGROUND

[0002] When the terminal device is in an idle state, the terminal device needs to listen to a paging physical downlink control channel (PDCCH) used to carry a paging message, to determine whether there is a paging message sent to itself.

[0003] In the related art, when the terminal device is in an idle state, if the terminal device needs to listen to the paging PDCCH, the network device needs to send an additional reference signal to the terminal device, so as to reduce the time of the terminal device waking up in advance before the paging occasion. The terminal device performs automatic gain control (AGC) adjustment / time-frequency synchronization (channel tracking) according to the synchronization signal block and the additional reference signal, so as to receive the paging and save power. In the above technology, the additional reference signal is usually a signal that does not exist in the communication system (including the network device and the UE), which causes a large overhead and a reduced capacity of the communication system. At present, in order to reduce the overhead and improve the capacity of the communication system, the network device usually sends the reference signal sent to the terminal device in a connected state to the terminal device in an idle state.

[0004] However, the network device usually sends the reference signal sent to the terminal device in a connected state to the terminal device in an idle state, which causes the terminal device in an idle state to be unable to determine whether the reference signal is available after receiving the reference signal. Moreover, because the time of waking up in advance is long, the power consumption of the terminal device for listening to the paging occasion is high.

[0005] In particular, when the terminal device needs to wake up frequently to receive the paging, the above power consumption (i.e., power consumption) problem will be more serious. Therefore, reducing the frequency of the terminal device waking up to receive the paging (including waking up to listen to the paging physical downlink control channel PDCCH) is also a problem to be solved urgently. SUMMARY

[0006] The present application provides a communication method, device, equipment, storage medium and program product, which are used for enabling the terminal device to determine the state of the reference signal according to the reference signal.

[0007] In a first aspect, an embodiment of the present application provides a communication method, comprising:

[0008] listening to a paging indication physical downlink control channel (PDCCH) to obtain indication information;

[0009] According to the indication information, a state of at least one reference signal is determined, or it is determined whether to monitor the paging PDCCH, the state being an available state or an unavailable state.

[0010] In a second aspect, an embodiment of the present application provides a communication apparatus applied to a terminal device, the apparatus comprising an obtaining module and a determining module, wherein,

[0011] The obtaining module is configured to monitor a paging indication physical downlink control channel (PDCCH) to obtain indication information.

[0012] The determining module is configured to determine, according to the indication information, a state of at least one reference signal, or determine whether to monitor the paging PDCCH, the state being an available state or an unavailable state.

[0013] In a third aspect, an embodiment of the present application provides a terminal device, comprising a processor and a memory.

[0014] The memory stores computer-executed instructions.

[0015] The processor executes the computer-executed instructions stored in the memory, so that the processor performs the method in the first aspect.

[0016] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores computer-executed instructions, and when a processor executes the computer-executed instructions, the method in the first aspect is implemented.

[0017] In a fifth aspect, an embodiment of the present application provides a computer program product comprising a computer program, and when the computer program is executed by a processor, the method in the first aspect is implemented.

[0018] The embodiments of the present application provide a communication method, apparatus, device, storage medium and program product, wherein the communication method comprises: monitoring a paging indication physical downlink control channel (PDCCH) to obtain indication information; and according to the indication information, determining a state of at least one reference signal, or determining whether to monitor the paging PDCCH, the state being an available state or an unavailable state. The communication method is used to make the terminal device determine the state of the reference signal (i.e., whether the reference signal is available) according to the indication information, so as to shorten the time length of the terminal device waking up, reduce the overhead of the communication system, and improve the capacity of the communication system, thereby achieving the common optimization of the energy saving of the terminal device, the reduction of the overhead of the communication system, and the improvement of the capacity of the communication system. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained on the basis of these drawings without creative labor.

[0020] Figure 1 The application scenario diagram of the communication method provided by the embodiments of the present application is shown in FIG. 1.

[0021] Figure 2 The flowchart of the communication method provided by the embodiments of the present application is shown in FIG. 2.

[0022] Figure 3 The schematic diagram of the first reference point provided by the embodiments of the present application is shown in FIG. 3. Figure 1

[0023] Figure 4 The schematic diagram of the first reference point provided by the embodiments of the present application is shown in FIG. 4. Figure 2

[0024] Figure 5 The schematic diagram of the second reference point provided by the embodiments of the present application is shown in FIG. 5. Figure 1

[0025] Figure 6 The schematic diagram of the second reference point provided by the embodiments of the present application is shown in FIG. 6. Figure 2

[0026] The schematic diagram of the third reference point provided by the embodiments of the present application is shown in FIG. 7. Figure 7

[0027] The schematic diagram of the fourth reference point provided by the embodiments of the present application is shown in FIG. 8. Figure 8

[0028] The structural schematic diagram of the communication device provided by the embodiments of the present application is shown in FIG. 9. Figure 9 Figure 1 The structural schematic diagram of the communication device provided by the embodiments of the present application is shown in FIG. 10.

[0029] Figure 10 Figure 2 The hardware structural schematic diagram of the terminal device provided by the embodiments of the present application is shown in FIG. 11.

[0030] Figure 11 The hardware structural schematic diagram of the terminal device provided by the embodiments of the present application is shown in FIG. 12. DETAILED DESCRIPTION

[0031] ​​​​​In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall into the scope of the present application.

[0032] The terms "first", "second", "third", "fourth" and the like in the description of the specification and claims of the present application and the above drawings (if any) are used to distinguish similar objects, and do not necessarily have to be used to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in an order other than that illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, communication system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] In the prior art, when the terminal device is in an idle state, such as an idle mode or a radio resource control (RRC) idle, the terminal device needs to monitor a paging PDCCH. Generally, the terminal device needs to determine a paging PDCCH monitoring occasion through the configuration of a paging frame (PF), a paging occasion (PO), and a paging search space set, and then monitor the paging PDCCH in the paging PDCCH monitoring occasion. In 5G new radio (NR), the terminal device needs to perform AGC adjustment / time-frequency tracking / measurement based on a synchronization signal block (SSB) before monitoring the paging PDCCH in the paging occasion. In actual application, a synchronization signal burst (SS-burst) (including multiple SSBs in each SS-burst) does not exist in every subframe or every time slot, but is sent in a certain time period (for example, 5 ms, 10 ms, 20 ms, etc.). Therefore, generally, the terminal device needs to wake up before the last two SS-bursts before the PO, and perform AGC adjustment / time-frequency synchronization or AGC adjustment / time-frequency synchronization / measurement using the two SS-bursts. When the terminal device experiences a long sleep, for example, the two POs monitored by the terminal device are far apart due to the PO configuration, the UE may need to wake up before the last three SS-bursts before the PO, and perform AGC adjustment / time-frequency synchronization or AGC adjustment / time-frequency synchronization / measurement using the three SS-bursts. This may cause the terminal device to wake up too early, and thus the terminal device consumes more power.

[0034] Further, in the prior art, the network device can configure and send an additional reference signal to the terminal device, so that the terminal device can use fewer SS-bursts (for example, one) and the additional reference signal to perform AGC adjustment / time-frequency synchronization or AGC adjustment / time-frequency synchronization / measurement, thereby avoiding the terminal device from waking up too early, and thus saving the power of the terminal device.

[0035] In the prior art, the additional reference signal shortens the wake-up time of the terminal device and saves the power of the terminal device. However, the additional reference signal is usually not a reference signal in the communication system, and therefore the overhead of the communication system is increased and the capacity of the communication system is reduced. To this end, a possible enhancement is to enable the idle-state terminal device to use the reference signal (TRS / CSI-RS) used by the connected-state terminal device, that is, the network device shares the reference signal used by the connected-state terminal device with the idle-state terminal device, so as to reduce the overhead of the communication system. However, the reference signal of the connected-state terminal device may become unavailable (or non-existent or invalid) when a connected-state terminal device leaves the connected state (RRC release). At this time, the idle-state terminal device needs to be notified that the reference signal is unavailable.

[0036] Therefore, how to notify the idle-state terminal device of whether the reference signal is available is a problem to be solved. To solve the above problem, the embodiment of the present application provides a communication method, so that the terminal device can determine the state (available state or unavailable state) of the reference signal through the indication information corresponding to the paging monitoring occasion (PMO) or the paging occasion (PO), that is, the terminal device can determine whether the reference signal is available, thereby solving the technical problem that the idle-state terminal device cannot determine whether the reference signal is available.

[0037] The application scenarios of the communication method provided by the embodiment of the present application will be described below. Figure 1 The application scenarios of the communication method provided by the embodiment of the present application will be described below.

[0038] Figure 1 The application scenarios of the communication method provided by the embodiment of the present application will be described below. Figure 1 As shown in FIG. 1, the communication system includes a network device 11 and a plurality of terminal devices. For example, the plurality of terminal devices include a terminal device 12 and a terminal device 13. The terminal device 12 is in a connected state, and the terminal device 13 is in an idle state. The network device 11 can send the reference signal sent to the terminal device 12 to the terminal device 13. The network device 11 sends indication information to the terminal device 13, so that the terminal device 13 can determine the state of the reference signal after receiving the indication information.

[0039] In the present application, network device: is a device with wireless transceiver function. It includes but is not limited to: the base station in long term evolution (long term evolution, LTE) (Evolutional Node B, eNB or eNodeB), base station (gNodeB or gNB) or TRP in new radio (new radio, NR) technology, base station in subsequent evolution communication system, access node in wireless fidelity (wireless fidelity, WiFi) communication system, wireless relay node, wireless backhaul node, etc. The base station can be: macro base station, micro base station, pico base station, small station, relay station, or balloon station, etc. Multiple base stations can support the network of the same technology mentioned above, or support the network of different technologies mentioned above. The base station can contain one or more co-sited or non-co-sited transmission receiving points (transmission receiving point, TRP).

[0040] In the present application, terminal device: is a device with wireless transceiver function. The terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a vehicle-mounted terminal device, a wireless terminal in self driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, a wearable terminal device, etc. The terminal device involved in the embodiments of the present application can also be referred to as terminal, user equipment (user equipment, UE), access terminal device, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent or UE apparatus, etc. The terminal device can also be fixed or mobile.

[0041] The technical solutions of the present application are described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described in some examples.

[0042] Figure 2 is a flowchart of a communication method provided by an embodiment of the present application Figure 1 . As shown in Figure 2 , the communication method provided by the embodiment includes:

[0043] S201, listen to a paging indication (PI) physical downlink control channel PDCCH to obtain indication information.

[0044] Optionally, the execution subject of the embodiment of the present application can be a terminal device, or a communication apparatus arranged in the terminal device, and the state determination apparatus can be implemented by a combination of software and / or hardware. The paging indication PDCCH can also be referred to as a paging early indication (PEI) PDCCH.

[0045] In a possible design, the paging indication PDCCH is listened to before at least one paging frame PF or paging occasion PO to obtain the indication information.

[0046] The paging indication PDCCH is listened to before the at least one PF or PO, which can be implemented in any one of the following feasible manners 10 and 11:

[0047] Manner 11, the paging indication PDCCH is listened to before the at least one PF or PO, including: listening to the paging indication PDCCH on a paging indication PDCCH listening occasion. The paging indication PDCCH listening occasion is before the at least one PF or PO, and closest to the first PF in the at least one PF or closest to the first PO in the at least one PO.

[0048] Manner 12, the paging indication PDCCH is listened to before the at least one PF or PO, including: listening to the paging indication PDCCH on a paging indication PDCCH listening occasion. The paging indication PDCCH listening occasion is before the at least one PF or PO, and closest to the first PF in the at least one PF or closest to the first PO in the at least one PO, and has a complete duration. The complete duration is specified by a higher layer parameter of a paging indication PDCCH search space.

[0049] In Rel-15 new radio (NR), at least one PMO is included in one PO, wherein the PMO and the SSB are in one-to-one association, that is, in one PO, the Kth PMO is associated with the Kth SSB, wherein K is 1 to X, and X is the total number of PMOs included in one PO.

[0050] S202, according to the indication information, determine the state of the at least one reference signal, or determine whether to monitor the paging PDCCH, the state being an available state or an unavailable state.

[0051] Optionally, the at least one reference signal can be configured to correspond to the SSB (have a QCL relationship) through transmission configuration indication (TCI), wherein the TCI is sent by the network device to the network device. Wherein the at least one reference signal includes tracking reference signal (TRS) and / or channel state information-reference signal (CSI-RS). One CSI-RS can be composed of one CSI-RS resource. One TRS can be composed of 4 CSI-RS resources in 2 slots, wherein there are 2 CSI-RS resources in one slot; or, one TRS can be composed of 2 CSI-RS resources in one slot.

[0052] Specifically, the indication information has the use of any one of the following modes 21 to 24.

[0053] Mode 21, according to the indication information, determine the state of the at least one reference signal.

[0054] Mode 22, according to the indication information, determine whether to monitor the paging PDCCH.

[0055] Mode 23, when it is determined according to the indication information that the paging PDCCH is monitored, determine that the state of the at least one reference signal is an available state. In this way, when the terminal device determines according to the indication information that the paging PDCCH is monitored, it can be determined that the state of the at least one reference signal is an available state, at this time the indication information indicates whether the paging PDCCH needs to be monitored and the state of the at least one reference signal. In this way, the number of bits of the indication information can be saved.

[0056] Manner 24, when the terminal device determines to monitor the paging PDCCH according to the indication information, the state of the at least one reference signal is determined according to a predefined rule, the state is either an available state or an unavailable state. In this way, when the terminal device determines to monitor the paging PDCCH according to the indication information, the state of the at least one reference signal can be determined according to the predefined rule, and at this time the indication information indicates both whether the terminal device needs to monitor the paging PDCCH and the state of the at least one reference signal. The predefined rule includes that the reference signal is only valid on a part of the configured occasions, such as a window or a time interval.

[0057] Manner 25, according to the indication information, the state of the at least one reference signal and whether to monitor the paging PDCCH are determined. At this time, the indication information includes multiple bits, the terminal device determines the state of the at least one reference signal through at least one bit in the indication information, and the terminal device determines whether to monitor the paging PDCCH through at least one bit in the indication information. In this way, the indication can be more flexible.

[0058] For manners 21, 23, 24 and 25, determining the state of the at least one reference signal includes any one of manners 210 to 216 (since the paging monitoring occasion PMO refers to the monitoring occasion of the paging PDCCH, the paging monitoring occasion PMO and the paging PDCCH are not distinguished in the following) :

[0059] Manner 210, the state of the at least one reference signal corresponding to the synchronization signal block SSB associated with the paging monitoring occasion PMO is determined. Optionally, the paging monitoring occasion PMO is associated with the paging indication PDCCH carrying the indication information. Optionally, the association relationship between the paging monitoring occasion PMO and the paging indication PDCCH carrying the indication information is that the paging monitoring occasion PMO and the paging indication PDCCH carrying the indication information are associated with the same synchronization signal block SSB.

[0060] Manner 2101, the state of all reference signals corresponding to the synchronization signal block SSB associated with the paging monitoring occasion PMO is determined. The synchronization signal block SSB associated with the paging monitoring occasion PMO can correspond to multiple reference signals, and the terminal device determines the state of all corresponding reference signals, which can save the communication system overhead.

[0061] Manner 2012, the state of one reference signal corresponding to the synchronization signal block SSB associated with the paging monitoring occasion PMO is determined. The synchronization signal block SSB associated with the paging monitoring occasion PMO can only correspond to one reference signal, and the terminal device determines the state of the corresponding one reference signal, which can be more targeted and more accurate.

[0062] Manner 211, it is determined that the state of the at least one reference signal is the available state before a paging monitoring occasion PMO or before a paging occasion PO. Optionally, the paging monitoring occasion PMO is associated with a paging indication PDCCH carrying the indication information. Optionally, the association between the paging monitoring occasion PMO and the paging indication PDCCH carrying the indication information is that the paging monitoring occasion PMO and the paging indication PDCCH carrying the indication information are associated with a same synchronization signal block SSB. Optionally, the paging occasion PO is associated with the paging indication PDCCH carrying the indication information.

[0063] Manner 212, it is determined that the state of the at least one reference signal is the available state after a first reference point. The first reference point is a first offset from the paging monitoring occasion PMO or the paging occasion PO.

[0064] Manner 213, it is determined that the state of the at least one reference signal is the available state before a second reference point. The second reference point is a second offset from the PMO or the PO.

[0065] Manner 214, it is determined that the state of the at least one reference signal is the available state before a paging indication PDCCH.

[0066] Manner 215, it is determined that the state of the at least one reference signal is the available state after a third reference point. The third reference point is a third offset from the paging indication PDCCH.

[0067] Manner 216, it is determined that the state of the at least one reference signal is the available state before a fourth reference point. The fourth reference point is a fourth offset from the paging indication PDCCH.

[0068] On the basis of the manner 210, the indication information has two configuration manners shown in any one of the following manners 101 and 102:

[0069] Manner 101, the indication information is 1 bit. The 1 bit indicates the state of all reference signals corresponding to a synchronization signal block SSB associated with the paging monitoring occasion PMO. In this way, the communication system overhead can be saved.

[0070] Manner 102, the indication information is more than 1 bit. Each 1 bit indicates the state of one reference signal corresponding to a synchronization signal block SSB associated with the paging monitoring occasion PMO. In this way, the communication system overhead is wasted, but the indication information is more accurate.

[0071] For the manners 21, 22, 23, 24 and 25, any one of the following manners 221 to 224 can be used:

[0072] Manner 221, when the indication information is the first preset value, listen to the paging PDCCH in the PF. The indication information is carried by 1 bit.

[0073] Manner 222, when the indication information is the first preset value, listen to the paging PDCCH in the PO. The indication information is carried by 1 bit.

[0074] Manner 223, when the indication information is the first preset value, listen to the paging PDCCH in the PO subgroup or the PO to which the PO subgroup belongs. The indication information is carried by 1 bit.

[0075] Manner 224, listen to the paging indication PDCCH at the listening occasion.

[0076] Wherein, the listening occasion can be implemented by any one of the following manners 2241 to 2251:

[0077] Manner 2241, the listening occasion is before the at least one paging frame PF. Although the granularity of the listening occasion is coarse, the system overhead is reduced before the at least one paging frame PF.

[0078] Manner 2242, the listening occasion is before the at least one PF and closest to the first PF in the at least one PF. In this way, the listening of the paging indication PDCCH can be started as soon as possible.

[0079] Manner 2243, the listening occasion is before the at least one PF and closest to the first PF in the at least one PF, and has a complete duration. In this way, the listening of the paging indication PDCCH can be started as soon as possible, and the paging indication PDCCH has a complete duration (improve reliability).

[0080] Manner 2244, the listening occasion is before the at least one paging occasion PO. Although the system overhead is large, the granularity of the listening occasion is fine before the at least one paging frame PF.

[0081] Manner 2245, the listening occasion is before the at least one PO and closest to the first PO in the at least one PO. In this way, the listening of the paging indication PDCCH can be started as soon as possible.

[0082] Manner 2246, the listening occasion is before the at least one PO and closest to the first PO in the at least one PO, and has a complete duration. In this way, the listening of the paging indication PDCCH can be started as soon as possible, and the paging indication PDCCH has a complete duration (improve reliability).

[0083] Manner 2247, the listening occasion is before the PF or PO that needs to be listened to.

[0084] Manner 2248, the monitoring occasion is on the configured paging PDCCH monitoring occasion before the PF or PO to be monitored. The configured paging PDCCH monitoring occasion is configured by the higher layer parameter, such as the search space set parameter. Using the configured paging PDCCH monitoring occasion as the monitoring occasion can simplify the system complexity, and the network device only needs to configure the paging PDCCH monitoring occasion, and the terminal device can monitor the paging PDCCH at the same time as monitoring the paging indication PDCCH.

[0085] Manner 2249, the monitoring occasion is on the closest configured paging indication PDCCH monitoring occasion to the PF or PO to be monitored before the PF or PO to be monitored. The configured paging indication PDCCH monitoring occasion is configured by the higher layer parameter, such as the search space set parameter. In this way, the terminal device starts to monitor the paging PDCCH as soon as possible after monitoring the paging PDCCH, and if the indication information indicates that the terminal device needs to monitor the paging PDCCH.

[0086] Manner 2250, the monitoring occasion is on the configured paging indication PDCCH monitoring occasion after the paging indication reference point before the PF or PO to be monitored. The configured paging indication PDCCH monitoring occasion is configured by the higher layer parameter, such as the search space set parameter; the paging indication reference point is the paging indication offset to the PF or PO to be monitored, and the paging indication offset is configured by the higher layer parameter. Optionally, the paging indication offset is a number of milliseconds or slots or symbols. In this way, the paging indication PDCCH monitoring occasion cannot be too far from the PF or PO to be monitored, and the terminal device can further perform time-frequency synchronization through the synchronization signal block and / or the reference signal, and successfully receive the paging PDCCH and / or the PDSCH.

[0087] Manner 2251, the monitoring occasion is on the configured paging indication PDCCH monitoring occasion after the paging indication reference point before the PF or PO to be monitored. The configured paging indication PDCCH monitoring occasion is configured by the higher layer parameter, such as the search space set parameter; the paging indication reference point is the paging indication offset to the PF or PO to be monitored, and the paging indication offset is configured by the higher layer parameter; and the paging indication PDCCH has a complete duration. Optionally, the paging indication offset is a number of milliseconds or slots or symbols. The paging indication PDCCH has a complete duration, which can improve the reliability.

[0088] The manner 2252 is that the monitoring occasion is on the configured paging indication PDCCH monitoring occasion before the minimum interval reference point and after the paging indication reference point. The configured paging indication PDCCH monitoring occasion is configured by a high-layer parameter, such as a search space set parameter. The minimum interval reference point is a minimum interval offset from the PF or PO to be monitored. The minimum interval offset is configured by a high-layer parameter. Optionally, the minimum interval offset is a number of milliseconds, slots, or symbols. In this way, the paging indication PDCCH monitoring occasion cannot be too close to the PF or PO to be monitored, and the terminal device can enter deep sleep.

[0089] The manner 2253 is that the monitoring occasion is on the configured paging indication PDCCH monitoring occasion before the minimum interval reference point. The configured paging indication PDCCH monitoring occasion is configured by a high-layer parameter, such as a search space set parameter. The minimum interval reference point is a minimum interval offset from the PF or PO to be monitored. The minimum interval offset is configured by a high-layer parameter. The paging indication PDCCH has a complete duration. Optionally, the minimum interval offset is a number of milliseconds, slots, or symbols. The paging indication PDCCH having a complete duration can improve reliability.

[0090] The manner 2254 is that the monitoring occasion is on the configured paging indication PDCCH monitoring occasion after the paging indication reference point and before the minimum interval reference point. The configured paging indication PDCCH monitoring occasion is configured by a high-layer parameter, such as a search space set parameter. The minimum interval reference point is a minimum interval offset from the PF or PO to be monitored. The minimum interval offset is configured by a high-layer parameter. The paging indication reference point is a paging indication offset from the PF or PO to be monitored. The paging indication offset is configured by a high-layer parameter. Optionally, the minimum interval offset is a number of milliseconds, slots, or symbols, and the paging indication offset is a number of milliseconds, slots, or symbols. In this way, the paging indication PDCCH monitoring occasion cannot be too far from the PF or PO to be monitored, the terminal device can further perform time-frequency synchronization through a synchronization signal block and / or a reference signal, successfully receive a paging PDCCH and / or a PDSCH, and the paging indication PDCCH monitoring occasion cannot be too close to the PF or PO to be monitored, and the terminal device can enter deep sleep.

[0091] The manner 2255 is that the monitoring occasion is on a configured paging indication PDCCH monitoring occasion after a paging indication reference point and before a minimum interval reference point. The configured paging indication PDCCH monitoring occasion is configured by a high-layer parameter, such as a search space set parameter. The minimum interval reference point is a minimum interval offset from a PF or PO that needs to be monitored, and the minimum interval offset is configured by a high-layer parameter. The paging indication reference point is a paging indication offset from the PF or PO that needs to be monitored, and the paging indication offset is configured by a high-layer parameter. The paging indication PDCCH has a complete duration. Optionally, the minimum interval offset is a number of milliseconds or time slots or symbols, and the paging indication offset is a number of milliseconds or time slots or symbols. The paging indication PDCCH having a complete duration can improve reliability.

[0092] Optionally, the indication information can also be carried by the paging indication PDCCH or by a downlink control information (DCI) corresponding to the paging indication PDCCH. The DCI corresponding to the paging indication PDCCH can also be referred to as a paging indication DCI. Hereinafter, it is referred to as DCI.

[0093] For example, when the indication information is carried by the DCI, in S202, on the basis of the manners 21, 22, 23, 24, and 25 described above, the indication information can be obtained by the following manners: determining a starting position and / or length of the indication information in the DCI, the DCI being carried on the paging indication PDCCH.

[0094] According to the starting position and / or length, the indication information is obtained from the DCI.

[0095] The starting position and / or length of the indication information in the DCI can be determined by any one of the following manners 2021 to 2025:

[0096] The manner 2021 is that the starting position and / or length of the indication information in the DCI is determined according to high-layer signaling. Optionally, the high-layer signaling can be sent by a network device to a terminal device, and the high-layer signaling configures the starting position and length of the indication information in the DCI.

[0097] The manner 2022 is that the starting position and / or length of the indication information in the DCI is determined according to a paging frame PF or a paging occasion PO that needs to be monitored.

[0098] The manner 2023 is that the starting position and / or length of the indication information in the DCI is determined according to high-layer signaling and a paging frame PF or a paging occasion PO that needs to be monitored.

[0099] Manner 2024, according to the PO subgroup to which the terminal device belongs, the starting position and / or length of the indication information in the DCI is determined.

[0100] Manner 2025, the indication information is obtained in the medium access control MAC signaling, MAC packet data unit PDU, or MAC control element CE. Among them, the indication information can use the bits in the MAC signaling, the bits in the MAC PDU, or the bits in the MAC CE. When the indication information uses the bits in the MAC signaling, the MAC PDU, or the MAC CE, the number of bits used by the indication information can be more, and is suitable for the case when there is a paging message in the downlink shared physical channel (PDSCH).

[0101] In the above-mentioned manners 2021 to 2024, the configuration manner of the indication information in the DCI can be any one of the following manners 20111 to 20114.

[0102] Manner 20111, the indication information is carried by the reserved bits in the DCI or the DCI format, such as DCI format 1-0.

[0103] Manner 20112, when the DCI does not carry scheduling information, the indication information is carried by the reserved bits of the domain in the DCI or the DCI format corresponding to the DCI. The DCI format can be DCI format 1-0, because DCI format 1-0 is more commonly used in the idle state.

[0104] Manner 20113, when the frequency domain resource allocation in the DCI is invalid, the indication information is carried by the bits of the redefined domain in the DCI or the DCI format corresponding to the DCI. The DCI format can be DCI format 1-0, because DCI format 1-0 is more commonly used in the idle state.

[0105] Manner 20114, when the DCI does not carry scheduling information, and the frequency domain resource allocation in the DCI is invalid, the indication information is carried by the bits of the redefined domain in the DCI or the DCI format corresponding to the DCI. The DCI format can be DCI format 1-0, because DCI format 1-0 is more commonly used in the idle state.

[0106] For the above-mentioned manner 24, any one of the manners 241 to 248 can be used to determine the state of the at least one reference signal according to the predefined rule:

[0107] Manner 241, within the window before the PMO (or PO), the state of the at least one reference information is determined as the available state.

[0108] In the mode 242, after determining the first reference point, the terminal device determines that the state of the at least one reference signal corresponding to the SSB associated with the PMO (or PO) is the available state. The first reference point is a first offset away from the PMO (or PO). The first offset can include zero and a positive non-zero number. Alternatively, the first reference point is before the PMO (or PO) and is a first offset away from the PMO (or PO). The first offset can include a positive non-zero number.

[0109] In the mode 243, the terminal device determines that the state of the at least one reference signal corresponding to the SSB associated with the PMO (or PO) is the available state within a first window. The first window is a window with a first reference point before the PMO (or PO) as a starting point.

[0110] In the mode 244, the terminal device determines that the state of the at least one reference signal corresponding to the SSB associated with the PMO (or PO) is the available state before a second reference point. The second reference point is a second offset away from the PMO (or PO). The second offset can include zero and a positive non-zero number. Alternatively, the second reference point is before the PMO (or PO) and is a second offset away from the PMO (or PO). The second offset can include a positive non-zero number.

[0111] In the mode 245, the terminal device determines that the state of the at least one reference signal corresponding to the SSB associated with the PMO (or PO) is the available state within a second window. The second window is a window with a second reference point before the PMO (or PO) as an ending point.

[0112] In the present application, the terminal device can only consider that the state of the at least one reference signal within the window before the PMO (or PO) is the available state or the unavailable state. In this way, the overhead of the at least one reference signal can be further reduced.

[0113] In the present application, the terminal device can consider that the state of the at least one reference signal after the first reference point before the PMO (or PO) and a first offset away from the PMO (or PO) is the available state. In this way, the terminal device can avoid using the at least one reference signal too far away from the PMO (or PO), which neither has energy saving gain nor increases the overhead of the communication system.

[0114] In the present application, the terminal device can consider that the state of the at least one reference signal before the second reference point before the PMO (or PO) and a second offset away from the PMO (or PO) is the available state. In this way, the terminal device can avoid using the at least one reference signal too close to the PMO (or PO). When the terminal device uses the at least one reference signal too close to the PMO (or PO), the terminal device cannot apply the AGC adjustment / time-frequency synchronization using the at least one reference signal to the reception of the PDCCH in time.

[0115] The method 246 determines that the state of the at least one reference signal is the available state before the paging indication PDCCH. That is, the state of the at least one reference signal is determined to be the available state within a window before the paging indication PDCCH monitoring occasion.

[0116] The method 247 determines that the state of the at least one reference signal is the available state after the third reference point. The third reference point is a third offset from the paging indication PDCCH monitoring occasion. The third offset can include zero and a positive non-zero number. Alternatively, the third reference point is before the paging indication PDCCH monitoring occasion and is a third offset from the paging indication PDCCH monitoring occasion. The third offset can include a positive non-zero number.

[0117] The method 248 determines that the state of the at least one reference signal is the available state before the fourth reference point. The fourth reference point is a fourth offset from the paging indication PDCCH monitoring occasion. The fourth offset can include zero and a positive non-zero number. Alternatively, the fourth reference point is before the paging indication PDCCH monitoring occasion and is a fourth offset from the paging indication PDCCH monitoring occasion. The fourth offset can include a positive non-zero number.

[0118] It should be noted that the given terminal device can transmit the paging indication PDCCH by sweeping beams as the SSB. The paging indication PDCCH monitoring occasion is associated with the SSB one by one, that is, the Kth paging indication PDCCH monitoring occasion is associated with the Kth SSB, where K is 1 to X, and X is the number of paging indication PDCCH monitoring occasions in a paging indication monitoring period.

[0119] In the present application, the terminal device can only consider that the state of the at least one reference signal within a window before the paging indication PDCCH monitoring occasion is the available state or the unavailable state. This can further reduce the overhead of the at least one reference signal.

[0120] In the present application, the terminal device can consider that the state of the at least one reference signal after the third reference point which is a third offset from the paging indication PDCCH monitoring occasion before the paging indication PDCCH monitoring occasion is the available state. This can avoid the terminal device using the at least one reference signal which is too far from the paging indication PDCCH monitoring occasion, which not only does not save the terminal device energy, but also increases the communication system overhead.

[0121] In the present application, the terminal device can consider that the state of the at least one reference signal is available only before the fourth reference point which is the fourth offset from the paging indication PDCCH monitoring occasion, so as to avoid the terminal device using the at least one reference signal which is too close to the paging indication PDCCH monitoring occasion. In practice, when the terminal device uses the at least one reference signal which is too close to the paging indication PDCCH monitoring occasion, even if the terminal device uses the at least one reference signal for AGC adjustment / time-frequency synchronization, it cannot be applied to the reception of the PDCCH in time.

[0122] In the above-mentioned manner 22 and manner 23, the indication information can also be obtained in the DCI through the following manners 25 to 38:

[0123] Manner 25, the starting position and / or length of the indication information in the DCI is directly configured through high layer signaling; the indication information is obtained from the DCI according to the starting position and / or length. Optionally, the high layer signaling can be sent by the network device to the terminal device. For example, if the length of the DCI is 10 bits, the starting position is the 3rd bit, and the length is 2 bits, the 3rd bit and the 4th bit in the DCI are the indication information.

[0124] Manner 26, according to high layer signaling, derive the start position and / or length of the indication information in the DCI; obtain the indication information from the DCI according to the start position and / or length. For example, the terminal device can derive its PF or PO position in the possible PFs or POs through the configuration information of the paging, thereby deriving the start position and length of the indication information in the DCI. Wherein, the possible PFs or POs are the possible PFs or POs in the paging cycle (in this case, the DCI corresponds to all the PFs or POs in the paging cycle), or the possible PFs or POs between the paging indication PDCCH and the next paging indication PDCCH (in this case, the DCI corresponds to all the PFs or POs between the current paging indication PDCCH and the next paging indication PDCCH), or the possible PFs or POs between the paging indication PDCCH and a termination reference point (configured by a termination offset) after the paging indication PDCCH (through the termination reference point, the possible PFs or POs can be avoided to be too much), or the possible PFs or POs between a start reference point (configured by a start offset) after the paging indication PDCCH and the next paging indication PDCCH (through the start reference point, the PFs or POs close to the current paging indication PDCCH can be avoided to be calculated in the possible PFs or POs, because the energy saving gain is not large when the indication information is for the PFs or POs close to the current paging indication PDCCH), or the possible PFs or POs between the start reference point (configured by the start offset) after the paging indication PDCCH and the termination reference point (configured by the termination offset) after the paging indication PDCCH (through the termination reference point and the start reference point, the possible PFs or POs can be avoided to be too much, and the PFs or POs close to the current paging indication PDCCH can be avoided to be calculated in the possible PFs or POs). Optionally, the length can also be determined by a predefined rule. In this way, the high layer signaling can be simplified. Optionally, when the indication information does not exist in the DCI, the terminal device can not listen to the PDCCH corresponding to the DCI. In this way, the complexity of the terminal device can be reduced.

[0125] In mode 27, the starting position and / or length of the indication information in the DCI is determined according to the PF or PO that the terminal device needs to monitor, and the indication information is obtained from the DCI according to the starting position and / or length. Optionally, the terminal device can derive the starting position and / or length of the indication information in the DCI according to the PF or PO that the terminal device needs to monitor. For example, the terminal device derives the PF or PO of itself in the possible PFs or POs, and further derives the starting position and length of the indication information in the DCI. The possible PFs or POs are the possible PFs or POs in a paging cycle, or the possible PFs or POs between a paging indication PDCCH and the next paging indication PDCCH, or the possible PFs or POs between a paging indication PDCCH and a termination reference point (configured by a termination offset) after the paging indication PDCCH, or the possible PFs or POs between a starting reference point (configured by a starting offset) after the paging indication PDCCH and the next paging indication PDCCH, or the possible PFs or POs between a starting reference point (configured by a starting offset) after the paging indication PDCCH and a termination reference point (configured by a termination offset) after the paging indication PDCCH. Optionally, the length can also be determined by a predefined rule. Since it is difficult for the high layer signaling to configure a single terminal device in the idle state, the terminal device derivation can simplify the signaling. Optionally, when the indication information is not in the DCI, the terminal device can not monitor the PDCCH corresponding to the DCI. This can reduce the complexity of the terminal device.

[0126] Manner 28, according to the high layer signaling and the PF or PO that the terminal device needs to monitor, determine the start position and / or length of the indication information in the DCI; according to the start position and / or length, obtain the indication information from the DCI. For example, the terminal device derives how many possible PFs or POs the DCI corresponds to through the configuration information of the paging, and further derives the start position and length of the indication information in the DCI by deriving the position of the PF or PO of the terminal device in the possible PFs or POs. The possible PFs or POs are the possible PFs or POs in a paging cycle, or the possible PFs or POs between the paging indication PDCCH and the next paging indication PDCCH, or the possible PFs or POs between the paging indication PDCCH and a termination reference point (configured by a termination offset) after the paging indication PDCCH, or the possible PFs or POs between a start reference point (configured by a start offset) after the paging indication PDCCH and the next paging indication PDCCH, or the possible PFs or POs between the start reference point (configured by the start offset) after the paging indication PDCCH and the termination reference point (configured by the termination offset) after the paging indication PDCCH. Optionally, the length can also be determined by a predefined rule. In this way, a compromise between signaling control and signaling simplification can be achieved. Optionally, when the indication information does not exist in the DCI, the terminal device can not monitor the PDCCH corresponding to the DCI. In this way, the complexity of the terminal device can be reduced.

[0127] Optionally, in the above-mentioned manners 26, 27, and 28, the terminal device can further derive the start position and / or length of the indication information in the DCI according to the PO subgroup to which the terminal device belongs (corresponding to a subgroup or subset of the terminal device group in the PO). For example, the terminal device first derives the start position and / or length of the indication information in the DCI according to the PO to which the terminal device belongs, and then derives the start position and / or length of the indication information in the DCI according to the PO subgroup to which the terminal device belongs. Optionally, when the indication information does not exist in the DCI, the terminal device can not monitor the PDCCH corresponding to the DCI. In this way, the complexity of the terminal device can be reduced.

[0128] Way 29, according to high layer signaling, the terminal device derives the total length of DCI; according to the total length, the indication information is obtained from the DCI. Only the total length of DCI is obtained, the terminal device can normally decode the DCI. For example, the terminal device can derive the number of possible PFs or POs through the configuration information of the paging, thereby deriving the total length of DCI. Among them, the possible PFs or POs are the possible PFs or POs in the paging cycle (at this time the DCI corresponds to all PFs or POs in the paging cycle), or the possible PFs or POs between the paging indication PDCCH and the next paging indication PDCCH (at this time the DCI corresponds to all PFs or POs between the current paging indication PDCCH and the next paging indication PDCCH), or the possible PFs or POs between the paging indication PDCCH and a termination reference point (configured by a termination offset) after the paging indication PDCCH (by the termination reference point, the possible PFs or POs can be avoided too much), or the possible PFs or POs between a starting reference point (configured by a starting offset) after the paging indication PDCCH and the next paging indication PDCCH (by the starting reference point, the PFs or POs close to the current paging indication PDCCH can be avoided from being calculated in the possible PFs or POs, because the indication information is for the PFs or POs close to the current paging indication PDCCH, the energy saving gain is not large), or the possible PFs or POs between a starting reference point (configured by a starting offset) after the paging indication PDCCH and a termination reference point (configured by a termination offset) after the paging indication PDCCH (by the termination reference point and the starting reference point, the possible PFs or POs can be avoided too much, and the PFs or POs close to the current paging indication PDCCH can be avoided from being calculated in the possible PFs or POs). Optionally, the length can also be determined by a pre-defined rule. In this way, the high layer signaling can be simplified. Optionally, when the indication information is not in the DCI, the terminal device can not listen to the PDCCH corresponding to the DCI. In this way, the complexity of the terminal device can be reduced.

[0129] Optionally, in the above-mentioned way 29, the terminal device can also derive the total length of DCI according to the parameters of the PO sub-group (corresponding to a sub-group or subset of the terminal device group in the PO); according to the total length, the indication information is obtained from the DCI. For example, the terminal device first derives the number of possible PFs or POs, and then derives the total length of DCI according to the PO sub-group parameters (such as the number of PO sub-groups in a PO). Optionally, when the indication information is not in the DCI, the terminal device can not listen to the PDCCH corresponding to the DCI. In this way, the complexity of the terminal device can be reduced.

[0130] Manner 31: The terminal device determines the starting position and / or length of the indication information in the DCI according to the PF to be monitored; and obtains the indication information from the DCI according to the starting position and / or length. When the indication information is a first preset value, it is determined to monitor the paging PDCCH in the PF. Optionally, when the indication information is a second preset value, it is determined not to monitor the paging PDCCH in the PF.

[0131] In a possible design, the indication information is carried by 1 bit. In a possible design, each 1 bit in the DCI corresponds to one PF. In a possible design, the 1 bit in the DCI is obtained, and when the 1 bit is a first preset value, the paging PDCCH is monitored in the PF corresponding to the 1 bit. Optionally, when the 1 bit is a second preset value, it is determined not to monitor the paging PDCCH in the PF corresponding to the 1 bit. In this application, each 1 bit in the DCI corresponds to one PF, although bits can be saved, but the granularity of indication is coarse, which is the PF.

[0132] Manner 32: The terminal device determines the starting position and / or length of the indication information in the DCI according to the paging occasion (PO) to be monitored; and obtains the indication information from the DCI according to the starting position and / or length. When the indication information is a first preset value, it is determined to monitor the paging PDCCH in the PO. Optionally, when the indication information is a second preset value, it is determined not to monitor the paging PDCCH in the PO.

[0133] In a possible design, the indication information is carried by 1 bit. In a possible design, each 1 bit in the DCI corresponds to one PO. In a possible design, the 1 bit in the DCI is obtained, and when the 1 bit is a first preset value, the paging PDCCH is monitored in the PO corresponding to the 1 bit. Optionally, when the 1 bit is a second preset value, it is determined not to monitor the paging PDCCH in the PO corresponding to the 1 bit. In this application, each 1 bit in the DCI corresponds to one PO, although more bits are used, but the granularity of indication is finer, which is the PO.

[0134] Manner 33: The terminal device determines the starting position and / or length of the indication information in the DCI according to the PO subgroup to be monitored; and obtains the indication information from the DCI according to the starting position and / or length. The PO subgroup is a subgroup or subset of the terminal device group in the corresponding PO. When the indication information is the first preset value, it is determined to monitor the paging PDCCH in the PO subgroup or the PO to which the PO subgroup belongs. Optionally, when the indication information is the second preset value, it is determined not to monitor the paging PDCCH in the PO subgroup or the PO to which the PO subgroup belongs. In a possible design, the indication information is carried by 1 bit. In a possible design, each 1 bit in the DCI corresponds to a PO subgroup. In a possible design, 1 bit in the DCI is obtained, and when the 1 bit is the first preset value, it is determined to monitor the paging PDCCH in the PO subgroup corresponding to the 1 bit or the PO to which the PO subgroup corresponding to the 1 bit belongs. Optionally, when the 1 bit is the second preset value, it is determined not to monitor the paging PDCCH in the PO subgroup corresponding to the 1 bit or the PO to which the PO subgroup corresponding to the 1 bit belongs. In this application, each 1 bit in the DCI corresponds to a PO subgroup, although more bits are used, but the granularity of the indication is finer, which is the PO subgroup.

[0135] Optionally, the first preset value can be 1 or 0, and the second preset value can also be 1 or 0. For example, when the first preset value is 1, the second preset value is 0, and when the first preset value is 0, the second preset value is 1.

[0136] The terminal device can wake up to monitor the paging indication PDCCH X PFs or POs in advance, so that the terminal device can know whether to wake up to monitor the paging PDCCH in the subsequent X PFs or POs in advance, thereby reducing the power consumption of the terminal device.

[0137] Manner 34: The terminal device determines the starting position and / or length of the indication information in the DCI according to the PF to be monitored; and obtains the indication information from the DCI according to the starting position and / or length. When the indication information is the first preset value, it is determined to monitor the paging PDCCH in the PF. Optionally, when the indication information is the second preset value, it is determined not to monitor the paging PDCCH in the PF.

[0138] In a possible design, the indication information is carried by 1 bit.

[0139] In a possible design, the DCI includes X bits, and each 1 bit corresponds to a PF.

[0140] In a possible design, 1 bit of the X bits is obtained, and when the 1 bit is the first preset value, the paging PDCCH in the PF corresponding to the 1 bit is monitored. Optionally, when the 1 bit is the second preset value, it is determined not to monitor the paging PDCCH in the PF corresponding to the 1 bit.

[0141] In this application, the DCI includes X bits, although bits can be saved, but the granularity of indication is coarse, which is a PF.

[0142] In mode 35, the terminal device determines the starting position and / or length of the indication information in the DCI according to the PO to be monitored, and obtains the indication information from the DCI according to the starting position and / or length. When the indication information is a first preset value, it is determined to monitor the paging PDCCH in the PO. Optionally, when the indication information is a second preset value, it is determined not to monitor the paging PDCCH in the PO.

[0143] In a possible design, the indication information is carried by 1 bit.

[0144] In a possible design, the DCI includes Y bits, where Y is equal to the product of X and M, M is the total number of paging occasions configured in a PF, and each 1 bit in the Y bits corresponds to a PO.

[0145] In a possible design, 1 bit in the Y bits is obtained, and when the 1 bit is a first preset value, the paging PDCCH is monitored in the PO corresponding to the 1 bit. Optionally, when the 1 bit is a second preset value, it is determined not to monitor the paging PDCCH in the PO corresponding to the 1 bit.

[0146] In this application, the DCI includes Y bits, although more bits are used, but the granularity of indication is finer, which is a PO.

[0147] In mode 36, the terminal device determines the starting position and / or length of the indication information in the DCI according to the PO sub-group to be monitored, and obtains the indication information from the DCI according to the starting position and / or length. The PO sub-group is a sub-group or subset corresponding to a terminal device group in the PO. When the indication information is a first preset value, it is determined to monitor the paging PDCCH in the PO sub-group or the PO to which the PO sub-group belongs. Optionally, when the indication information is a second preset value, it is determined not to monitor the paging PDCCH in the PO sub-group or the PO to which the PO sub-group belongs.

[0148] In a possible design, the indication information is carried by 1 bit.

[0149] In a possible design, the DCI includes Z bits, where Y is equal to the product of X, M and L, M is the total number of POs configured in a PF, L is the total number of PO sub-groups configured in a PO, and each 1 bit in the Z bits corresponds to a PO sub-group.

[0150] In a possible design, 1 bit in the Z bits is acquired, and when the 1 bit is a first preset value, the terminal device listens to the paging PDCCH in the PO corresponding to the 1 bit or in the PO to which the PO corresponding to the 1 bit belongs. Optionally, when the 1 bit is a second preset value, the terminal device determines not to listen to the paging PDCCH in the PO corresponding to the 1 bit or in the PO to which the PO corresponding to the 1 bit belongs.

[0151] In this application, the DCI includes Z bits, although more bits are used, but the granularity of indication is finer, and the granularity of indication is a PO subgroup.

[0152] Optionally, when the indication information is a second preset value, the terminal device determines not to listen to the paging PDCCH in the PO subgroup or in the PO to which the PO subgroup belongs.

[0153] In a possible design, the indication information is carried by 1 bit.

[0154] In a possible design, the DCI includes X bits, and each 1 bit corresponds to one PO.

[0155] In a possible design, 1 bit in the X bits is acquired, and when the 1 bit is a first preset value, the terminal device determines to listen to the paging PDCCH in the PO corresponding to the 1 bit. Optionally, when the 1 bit is a second preset value, the terminal device determines not to listen to the paging PDCCH in the PO corresponding to the 1 bit.

[0156] In this application, the DCI includes X bits, the granularity of indication is a PO, fewer bits are used, the granularity of indication is finer, but more DCI bits are needed.

[0157] Optionally, when the indication information is a second preset value, the terminal device determines not to listen to the paging PDCCH in the PO subgroup or in the PO to which the PO subgroup belongs.

[0158] In a possible design, the indication information is carried by 1 bit. In a possible design, the DCI includes Z bits, and each 1 bit corresponds to one PO subgroup. The PO subgroup is a subgroup or subset of the terminal device group in the corresponding PO. In a possible design, 1 bit of the Z bits is acquired, and when the 1 bit is a first preset value, it is determined to monitor the paging PDCCH in the PO subgroup corresponding to the 1 bit or the PO to which the PO subgroup corresponding to the 1 bit belongs. Optionally, when the 1 bit is a second preset value, it is determined not to monitor the paging PDCCH in the PO subgroup corresponding to the 1 bit or the PO to which the PO subgroup corresponding to the 1 bit belongs. In this application, the DCI includes Z bits, the granularity of the indication is a PO subgroup, the number of bits used is smaller, the granularity of the indication is finer, but the number of DCI bits required is larger.

[0159] In the above manner, the first preset value can be 1 or 0, and the second preset value can also be 1 or 0. For example, when the first preset value is 1, the second preset value is 0, and when the first preset value is 0, the second preset value is 1.

[0160] The communication method provided in this embodiment includes: monitoring a paging indication PDCCH, acquiring indication information, and determining the state of at least one reference signal according to the indication information. This enables the terminal device to determine the state (i.e., whether available) of at least one reference signal, thereby saving the power consumption of the terminal device.

[0161] The communication method provided in this embodiment further includes: monitoring a paging indication PDCCH, acquiring indication information, and determining whether to monitor a paging PDCCH according to the indication information. This can reduce the frequency of the terminal device waking up to receive paging, thereby saving the power consumption of the terminal device.

[0162] Further, in the prior art, in order to shorten the terminal device wake-up time, reduce the overhead of the communication system, and improve the capacity of the communication system, the network device usually sends the reference signal to the terminal device in the connected state to the terminal device in the idle state, causing the terminal device in the idle state to receive the reference signal and being unable to determine whether the reference signal is available, thereby failing to shorten the terminal device wake-up time, reduce the overhead of the communication system, and improve the capacity of the communication system. In this application, the terminal device determines the state of at least one reference signal according to the indication information, which enables the terminal device to determine whether the reference signal is available, thereby achieving the purpose of shortening the terminal device wake-up time, reducing the overhead of the communication system, and improving the capacity of the communication system, i.e., achieving the common optimization of the energy saving of the terminal device, the reduction of the overhead of the communication system, and the improvement of the capacity of the communication system.

[0163] Figure 3 Schematic diagram of the first reference point provided in this embodiment Figure 1 As shown in FIG. 1, the first reference point is a point A. Figure 3As shown, the first reference point is a first offset from the PMO or the PO, and after the first reference point, the state of the at least one reference signal is the available state.

[0164] Figure 4 An illustration of the first reference point provided for an embodiment of the present application Figure 2 As shown, in a first window starting from the first reference point, the state of the at least one reference signal is the available state. Figure 4

[0165] Figure 5 An illustration of the second reference point provided for an embodiment of the present application Figure 1 As shown, the first reference point is a second offset from the PMO or the PO, and after the second reference point, the state of the at least one reference signal is the available state. Figure 5

[0166] An illustration of the second reference point provided for an embodiment of the present application Figure 6 As shown, in a second window ending at the second reference point, after the second reference point, the state of the at least one reference signal is the available state. Figure 2 Figure 6 An illustration of the third reference point provided for an embodiment of the present application. As shown, it is determined that after the third reference point, the state of the at least one reference signal is the available state.

[0167] Figure 7 Figure 7 An illustration of the fourth reference point provided for an embodiment of the present application. As shown, it is determined that before the fourth reference point, the state of the at least one reference signal is the available state.

[0168] Figure 8 An illustration of the fourth reference point provided for an embodiment of the present application. As shown, it is determined that before the fourth reference point, the state of the at least one reference signal is the available state. Figure 8

[0169] An illustration of the structure of a communication apparatus provided for an embodiment of the present application Figure 9 As shown, the communication apparatus 10 comprises an acquisition module 101 and a determination module 102, wherein Figure 1 Figure 9 The acquisition module 101 is configured to listen to a paging indication physical downlink control channel (PDCCH) and acquire indication information.

[0170] The determination module 102 is configured to determine the state of the at least one reference signal or determine whether to listen to the paging PDCCH according to the indication information, the state being the available state or the unavailable state.

[0171] The determination module 102 is configured to determine the state of the at least one reference signal or determine whether to listen to the paging PDCCH according to the indication information, the state being the available state or the unavailable state.

[0172] The communication apparatus 10 provided by the embodiments of the present application can perform the technical solutions shown in the above method embodiments, and the implementation principles and beneficial effects are similar, which will not be described here again.​​​​

[0173] In a possible design, the determining module 102 is specifically configured to:

[0174] determine a state of at least one reference signal corresponding to a synchronization signal block (SSB) associated with the paging monitoring occasion (PMO).

[0175] In a possible design, the indication information is 1 bit, and the 1 bit indicates the state of all reference signals corresponding to a synchronization signal block (SSB) associated with the paging monitoring occasion (PMO).

[0176] In a possible design, the indication information is more than 1 bit, and each 1 bit indicates the state of one reference signal corresponding to a synchronization signal block (SSB) associated with the paging monitoring occasion (PMO).

[0177] In a possible design, the determining module 102 is specifically configured to:

[0178] determine that the state of the at least one reference signal is the available state before the paging monitoring occasion (PMO) or before a paging occasion (PO).

[0179] In a possible design, the determining module 102 is specifically configured to:

[0180] determine that the state of the at least one reference signal is the available state after a first reference point, where the first reference point is a first offset from the paging monitoring occasion (PMO) or the paging occasion (PO).

[0181] In a possible design, the determining module 102 is specifically configured to:

[0182] determine that the state of the at least one reference signal is the available state before a second reference point, where the second reference point is a second offset from the paging monitoring occasion (PMO) or the paging occasion (PO).

[0183] In a possible design, the determining module 102 is specifically configured to:

[0184] determine that the state of the at least one reference signal is the available state before a paging indication PDCCH.

[0185] In a possible design, the determining module 102 is specifically configured to:

[0186] determine that the state of the at least one reference signal is the available state after a third reference point, where the third reference point is a third offset from the paging indication PDCCH.

[0187] In a possible design, the determining module 102 is specifically configured to:

[0188] It is determined that the state of the at least one reference signal is the available state before a fourth reference point, wherein the fourth reference point is a fourth offset amount from the paging indication PDCCH.

[0189] Figure 10 Structure of the communication apparatus provided by the embodiment of the present application Figure 2 In Figure 9 addition, as shown in Figure 10 , the communication apparatus 10 comprises: further comprises: a listening module 103, wherein,

[0190] The listening module 103 is configured to listen to the paging PDCCH in the PF when the indication information is the first preset value.

[0191] In a possible design, the indication information is carried by 1 bit.

[0192] In a possible design, the listening module 103 is configured to listen to the paging PDCCH in the PO when the indication information is the first preset value.

[0193] In a possible design, the indication information is carried by 1 bit.

[0194] In a possible design, the listening module 103 is configured to listen to the paging PDCCH in the PO subgroup or the PO to which the subgroup belongs when the indication information is the first preset value.

[0195] In a possible design, the indication information is carried by 1 bit.

[0196] In a possible design, the obtaining module 101 is specifically configured to:

[0197] Determine the starting position and / or length of the indication information in the DCI, and the DCI is carried on the paging indication PDCCH.

[0198] Obtain the indication information from the DCI according to the starting position and / or length.

[0199] In a possible design, the obtaining module 101 is specifically configured to:

[0200] Determine the starting position and / or length of the indication information in the DCI according to the higher layer signaling.

[0201] In a possible design, the obtaining module 101 is specifically configured to:

[0202] Determine the starting position and / or length of the indication information in the DCI according to the paging frame PF or the paging occasion PO to be listened to.

[0203] In a possible design, the obtaining module 101 is specifically configured to:

[0204] According to the high layer signaling and the paging frame (PF) or paging occasion (PO) to be monitored, the starting position and / or length of the indication information in the DCI is determined.

[0205] In a possible design of the application, the obtaining module 101 is specifically configured to:

[0206] According to the PO subgroup to which the terminal device belongs, the starting position and / or length of the indication information in the DCI is determined.

[0207] In a possible design of the application, the obtaining module 101 is further configured to:

[0208] The indication information is obtained in medium access control (MAC) signaling, a MAC packet data unit (PDU), or a MAC control element (CE).

[0209] In a possible design of the application, the monitoring module 103 is further configured to:

[0210] The paging indication (PDCCH) is monitored at the monitoring occasion.

[0211] In a possible design of the application, the monitoring occasion is before at least one paging frame (PF).

[0212] In a possible design of the application, the monitoring occasion is before at least one PF and closest to a first PF in the at least one PF.

[0213] In a possible design of the application, the monitoring occasion is before at least one PF and closest to a first PF in the at least one PF, and has a complete duration.

[0214] In a possible design of the application, the monitoring occasion is before at least one paging occasion (PO).

[0215] In a possible design of the application, the monitoring occasion is before at least one PO and closest to a first PO in the at least one PO.

[0216] In a possible design of the application, the monitoring occasion is before at least one PO and closest to a first PO in the at least one PO, and has a complete duration.

[0217] Figure 11 A hardware structure diagram of a terminal device provided by an embodiment of the application is shown in FIG. 2. As shown in FIG. 2, the terminal device 20 includes a processor 201 and a memory 202. Figure 11

[0218] The processor 201 and the memory 202 are connected through a bus 203.

[0219] ​In the implementation process, the processor 201 executes the computer execution instructions stored in the memory 202, so that the processor 201 performs the communication method in the above method embodiments.

[0220] The specific implementation process of the processor 201 can refer to the above method embodiments, which have similar implementation principles and technical effects, and will not be repeated here.

[0221] In the above Figure 11 In the embodiments shown above, it should be understood that the processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the application can be directly embodied as execution completed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0222] The memory can contain a high-speed RAM memory, and can also include a non-volatile storage NVM, such as a disk memory.

[0223] The bus can be an industry standard architecture (ISA) bus, a peripheral component (PCI) bus, or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, the bus in the drawings of the present application does not limit to only one bus or one type of bus.

[0224] The present application also provides a computer readable storage medium, and the computer readable storage medium stores computer execution instructions. When the processor executes the computer execution instructions, the communication method in the above method embodiments is implemented.

[0225] The present application also provides a computer program product, which includes a computer program. When the computer program is executed by the processor, the communication method in the above method embodiments is implemented.

[0226] The aforementioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0227] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an application-specific integrated circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0228] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another communication system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0229] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0230] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0231] 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 can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality 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 embodiments of the method of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0232] Those of ordinary skill in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction-related hardware. The aforementioned program can be stored in a computer readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, and various media that can store program codes.

[0233] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacements for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication method, characterized in that, Applied to a terminal device, the method includes: Regarding the timing of the listening, the Paging Indication Physical Downlink Control Channel (PDCCH) is monitored to obtain indication information; the listening timing is before at least one Paging Frame (PF). Based on the instruction information, determine the status of at least one reference signal, or determine whether to listen to the paging PDCCH, wherein the status is an available status or an unavailable status; Obtaining instruction information includes: Based on higher-level signaling and the paging frame PF or paging timing PO that needs to be monitored, the start position and length of the indication information in the DCI are determined, and the DCI is carried on the paging indication PDCCH.

2. The method according to claim 1, characterized in that, Determining the state of at least one reference signal includes: Determine the state of at least one reference signal corresponding to the synchronization signal block SSB associated with the PMO during paging listening.

3. The method according to claim 2, characterized in that, The indication information is 1 bit, which indicates the status of all reference signals corresponding to the synchronization signal block SSB associated with the PMO during paging and listening.

4. The method according to claim 2, characterized in that, The indication information is more than 1 bit, wherein each 1 bit indicates the state of a reference signal corresponding to the synchronization signal block SSB associated with the PMO during paging and listening.

5. The method according to claim 1, characterized in that, Determining the state of at least one reference signal includes: It is determined that the state of the at least one reference signal is available before the paging listening time PMO or before the paging time PO.

6. The method according to claim 1, characterized in that, Determining the state of at least one reference signal includes: After determining the first reference point, the state of the at least one reference signal is an available state, wherein the first reference point is offset from the paging listening time PMO or paging time PO by a first offset.

7. The method according to claim 1, characterized in that, Determining the state of at least one reference signal includes: Before determining the second reference point, the state of the at least one reference signal is an available state, wherein the second reference point is a second offset from the paging listening time PMO or paging time PO.

8. The method according to claim 1, characterized in that, It is determined that the state of the at least one reference signal is available before the paging instruction PDCCH.

9. The method according to claim 1, characterized in that, After determining the third reference point, the state of the at least one reference signal is an available state, wherein the third reference point is a third offset from the paging indicator PDCCH.

10. The method according to claim 1, characterized in that, Before determining the fourth reference point, the state of the at least one reference signal is in an available state, wherein the fourth reference point is a fourth offset from the paging indicator PDCCH.

11. The method according to claim 1, characterized in that, When the indication information is a first preset value, the paging PDCCH is monitored within the PF.

12. The method according to claim 11, characterized in that, The indication information is carried by 1 bit.

13. The method according to claim 1, characterized in that, When the indication information is a first preset value, the paging PDCCH is monitored within the PO.

14. The method according to claim 13, characterized in that, The indication information is carried by 1 bit.

15. The method according to claim 1, characterized in that, When the indication information is a first preset value, the paging PDCCH is monitored in the PO subgroup or the PO to which the PO subgroup belongs.

16. The method according to claim 15, characterized in that, The indication information is carried by 1 bit.

17. The method according to claim 1, characterized in that, Determining the start position and / or length of the indication information in the DCI includes: Based on the paging frame PF or paging timing PO that needs to be monitored, determine the start position and / or length of the indication information in the DCI.

18. The method according to claim 1, characterized in that, Determining the start position and / or length of the indication information in the DCI also includes: The start position and / or length of the indication information in the DCI are determined based on the PO subgroup to which the terminal device belongs.

19. The method according to claim 1, characterized in that, The method further includes: The indication information is obtained from the Media Access Control (MAC) signaling, the MAC Packet Data Unit (PDU), or the MAC Control Unit (CE).

20. The method according to claim 1, characterized in that, The listening time is before at least one PF and closest to the first PF among the at least one PF.

21. The method according to claim 1, characterized in that, The listening timing is before at least one PF and closest to the first of the at least one PF, and has a full duration.

22. The method according to claim 1, characterized in that, The listening time is before at least one paging time (PO).

23. The method according to claim 1, characterized in that, The listening time is before at least one paging time (PO) and closest to the first of the at least one PO.

24. The method according to claim 1, characterized in that, The listening time is before at least one paging time (PO) and closest to the first of the at least one PO, and has a full duration.

25. A communication device, characterized in that, Applied to terminal devices, the device includes: an acquisition module and a determination module, wherein, The acquisition module is used to listen to the Paging Indication Physical Downlink Control Channel (PDCCH) at the listening time and acquire indication information; the listening time is before at least one paging frame (PF); The determination module is used to determine the state of at least one reference signal or to determine whether to listen to the paging PDCCH based on the indication information, wherein the state is an available state or an unavailable state. The acquisition module is specifically used to determine the start position and length of the indication information in the DCI based on the higher-layer signaling and the paging frame PF or paging timing PO that needs to be monitored. The DCI is carried on the paging indication PDCCH.

26. A terminal device, characterized in that, include: Processor and memory; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1 to 24.

27. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, implement the method as described in any one of claims 1 to 24.

28. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 24.

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