WO2024032252A1 - Communication method and apparatus - Google Patents

Abstract

A communication method and apparatus. The method comprises: a network device sends first system information, and correspondingly, a terminal device receives the first system information, the first system information being used for configuring a tracking reference signal (TRS). If a default paging period changes, the terminal device may determine that the configured TRS is unavailable, and the network device may determine that the configured TRS does not need to be sent to the terminal device. On the basis of the method, because the terminal device has determined that the configured TRS is unavailable, even if the network device does not send the configured TRS, the terminal device can perform a background operation according to an SSB according to a traditional scheme, thereby ensuring that the terminal device can be in a wake-up state and normally monitor a PO when the PO arrives, and avoiding missing of important information such as paging, an SI modification indication, or an earthquake and tsunami early warning/commercial mobile alert. In addition, the network device not sending the configured TRS can also reduce resource and signaling overheads.

Description

A communication method and device

This application claims priority to the Chinese patent application submitted to the State Intellectual Property Office on August 10, 2022, with application number 202210956756.8 and application title "A communication method and device", the entire content of which is incorporated into this application by reference. .

Technical field

The embodiments of the present application relate to the field of communication, and in particular, to a communication method and device.

Background technique

Currently, in the new radio (NR) system, a terminal device in the radio resource control (RRC) idle state or RRC inactive state can be configured according to at least one prior to the paging occasion (PO). The synchronization signal/physical broadcast channel block (SSB) performs "background" operations such as time-frequency tracking/timing synchronization to ensure that the terminal device can enter the wake-up state when the PO arrives to monitor normally. For example, as shown in Figure 1, the terminal device performs background operations according to three SSB bursts (SSB burst) before PO.

However, the SSB cycle is relatively large, causing the terminal device to spend a long time performing background operations before PO, thereby increasing the power consumption of the terminal device. Based on this, a solution is proposed to use additional reference signals to assist terminal equipment in background operations. For example, as shown in Figure 2, the terminal device can perform background operations according to an SSB burst, reference signal (RS) 1, and RS2. Among them, RS1 and RS2 are additional reference signals.

In the above auxiliary scheme, whether the network device actually sends additional reference signals can be indicated by the layer 1 availability indication (L1availability indication). A Tier 1 availability indication may be associated with a validity period during which the Tier 1 availability indication remains valid.

Contents of the invention

This application provides a communication method and device that stipulates the processing of terminal equipment when the default paging cycle changes, which can reduce the impact of changes in the default paging cycle on PO monitoring.

In the first aspect, a communication method is provided. The method can be executed by a terminal device, or by a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device. It can also be executed by a device that can implement all or part of the communication method. Logic module or software implementation of terminal equipment functions. The method includes receiving first system information, the first system information being used to configure a tracking reference signal TRS. If the default paging cycle changes, determine that the configured TRS is unavailable.

Based on this solution, in the case where the default paging cycle changes, the terminal device determines that the configured TRS is unavailable. At this time, even if the network device does not send the configured TRS after the default paging cycle changes, because the terminal device has determined that the configured TRS is unavailable, the terminal device can perform background operations according to SSB according to the traditional solution, thereby ensuring that when the PO arrives The terminal device can be awake and monitor the PO normally to avoid missing important information such as paging, SI modification instructions, or earthquake and tsunami warnings/commercial mobile alarms.

In a possible design, before the default paging cycle is changed, the method further includes: receiving a first availability indication, where the first availability indication is used to indicate whether the configured TRS is available. If the default paging cycle changes, determine that the configured TRS is unavailable, including: if the default paging cycle changes within the first validity period corresponding to the first availability indication, determine that the configured TRS is unavailable during the remaining time of the first validity period. .

Based on this possible design, if the default paging cycle changes within a certain validity period corresponding to the availability indication, the terminal device can determine that the configured TRS is unavailable during the remaining time of the validity period. In this scenario, even if the network device does not send the configured TRS during the remaining period of validity, the terminal device can perform background operations based on SSB, thereby reducing the impact of changes in the default paging cycle on PO monitoring.

In a possible design, the method further includes: if the default paging cycle changes within the first validity period corresponding to the first availability indication, determining that the first validity period is invalid.

Based on this possible design, when the default paging cycle changes within a certain validity period corresponding to the availability indication, the terminal device can determine that the validity period has expired, thereby avoiding some possible misalignment issues between the terminal device and the network device.

In one possible design, determining that the first validity period has expired includes: stopping the timing of the first validity period; or, stopping the timer of the first validity period; or, determining that the first validity period has ended.

In a possible design, the first validity period is determined based on the default paging cycle before the change.

In a possible design, after the default paging cycle changes, the method further includes: receiving a second availability indication, and determining whether the configured TRS is available according to the second availability indication.

Based on this possible design, after the default paging cycle changes, the terminal device can determine whether the configured TRS is based on the new availability indication. available. This can prevent the terminal device from always thinking that the configured TRS is unavailable after the default paging cycle changes, and thus always using SSB for background operations, resulting in high power consumption of the terminal device. When the terminal device determines that some or all of the configured TRSs are available according to the second availability indication, it can perform background operations based on the available TRSs, thereby reducing power consumption.

In a possible design, the second availability indication is used to indicate whether the configured TRS is available; determining whether the configured TRS is available according to the second availability indication includes: determining according to the second availability indication that the configured TRS is available at a location corresponding to the second availability indication. is available within the second validity period.

In a possible design, the second validity period is determined based on the changed default paging cycle.

In the second aspect, a communication method is provided. The method can be executed by a network device, or by a component of the network device, such as a processor, a chip, or a chip system of the network device. It can also be executed by a device that can implement all or part of the communication method. Logic module or software implementation of network device functions. The method includes: sending first system information, which is used to configure a tracking reference signal TRS for the terminal device; if the default paging cycle changes, determining that it is not necessary to send the configured TRS to the terminal device.

Based on this solution, because the terminal device may think that the configured TRS is unavailable when the default paging cycle changes, even if the network device sends the configured TRS, the terminal device may not receive and use the configured TRS, resulting in resource waste. Therefore, the network device does not need to send the configured TRS after the default paging cycle changes, thereby reducing resource waste and signaling overhead.

In a possible design, before the default paging cycle is changed, the method further includes: sending a first availability indication, where the first availability indication is used to indicate whether the configured TRS is available. If the default paging cycle changes, determine that it is not necessary to send the configured TRS to the terminal device, including: if the default paging cycle changes within the first validity period corresponding to the first availability indication, determine that it does not need to be sent within the remaining time of the first validity period. The configured TRS needs to be sent to the terminal device.

Based on this possible design, when the default paging cycle changes within a certain validity period corresponding to the availability indication, the network device can determine that it does not need to send the configured TRS to the terminal device during the remaining time of the validity period, which can avoid the network device The TRS is sent within the remaining time but the terminal device does not use or receive the TRS, thereby reducing resource waste.

In a possible design, the first validity period is determined based on the default paging cycle before the change.

In a possible design, after the default paging cycle changes, the method further includes: sending a second availability indication; and determining whether to send the configured TRS according to the second availability indication.

Based on this possible design, after the default paging cycle changes, the network device can send a new availability indication to the terminal device, so that the terminal device can determine whether the configured TRS is available based on the new availability indication. This can prevent the terminal device from always thinking that the configured TRS is unavailable after the default paging cycle changes, and thus always using SSB for background operations, resulting in high power consumption of the terminal device. When the terminal device determines that some or all of the configured TRSs are available according to the second availability indication, it can perform background operations based on the available TRSs, thereby reducing power consumption.

In a possible design, the second availability indication is used to indicate whether the configured TRS is available; determining whether to send the configured TRS according to the second availability indication includes: determining according to the second availability indication the second location corresponding to the second availability indication. Whether to send the configured TRS within the validity period.

In a possible design, the second validity period is determined based on the changed default paging cycle.

In the third aspect, a communication method is provided. The method can be executed by a terminal device, or by a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device. It can also be executed by a device that can implement all or part of the communication method. Logic module or software implementation of terminal equipment functions. The method includes: receiving a third availability indication, the third availability indication being used to indicate whether the configured tracking reference signal TRS is available. If the default paging cycle changes within the third validity period corresponding to the third availability indication, the third validity period remains unchanged. The third validity period is determined based on the default paging cycle before the change.

Based on this solution, when the default paging cycle changes within the validity period corresponding to an availability indication, the terminal device remains unchanged during the third validity period, that is, the terminal device considers that the availability indication and its corresponding validity period are not subject to default paging. The influence of periodic changes, so that the terminal equipment can normally use the TRS configured within the validity period, ensuring that the terminal equipment can be in the awake state and monitor the PO normally when the PO arrives, to avoid missing paging, SI modification instructions, or earthquake and tsunami warning/commercial Mobile alerts and other important information. In addition, the terminal device uses the TRS configured within the validity period for background operations. Compared with the terminal device only using SSB for background operations, the power consumption of the terminal device can be reduced.

In one possible design, keeping the availability of the configured TRS unchanged during the third validity period includes: keeping the availability of the configured TRS unchanged during the third validity period.

Based on this possible design, the terminal device can receive the available TRS within the third validity period and perform background operations based on the available TRS to ensure that the terminal device can be awake and monitor the PO normally when the PO arrives, reducing the default paging cycle. Impact of changes on PO monitoring.

In a possible design, the method further includes: determining whether the configured TRS is available within the third validity period according to the third availability indication. use.

In a possible design, the method further includes: receiving first system information, where the first system information is used to configure the TRS.

In the fourth aspect, a communication method is provided. The method can be executed by a network device, or by a component of the network device, such as a processor, a chip, or a chip system of the network device. It can also be executed by a device that can implement all or part of the communication method. Logic module or software implementation of network device functions. The method includes: sending a third availability indication, the third availability indication being used to indicate whether the configured tracking reference signal TRS is available. If the default paging cycle changes within the third validity period corresponding to the third availability indication, the third validity period remains unchanged. The third validity period is determined based on the default paging cycle before the change.

Based on this solution, when the default paging cycle changes within the validity period corresponding to an availability indication, the network device remains unchanged for the third validity period, that is, the network device considers that the availability indication and its corresponding validity period are not subject to default paging. The impact of periodic changes, so the network device can send the TRS available in the third validity period, so that the terminal device can normally use the TRS configured within the validity period, ensuring that the terminal device can be awake and listen to the PO normally when the PO arrives, avoiding The terminal equipment misses important information such as paging, SI modification instructions, or earthquake and tsunami warnings/commercial mobile warnings. In addition, when the terminal device uses the TRS configured within the validity period for background operations, compared with the terminal device only using SSB for background operations, the power consumption of the terminal device can be reduced.

In one possible design, keeping the third validity period unchanged includes: keeping the sending of the configured TRS unchanged in the third validity period.

Based on this possible design, the terminal device can perform background operations according to the available TRS during the third validity period, ensuring that the terminal device can be awake and monitor the PO normally when the PO arrives, and reduce the impact of changes in the default paging cycle on PO monitoring. .

In a possible design, the method further includes: sending first system information, where the first system information is used to configure the TRS.

In the fifth aspect, a communication method is provided. The method can be executed by a terminal device, or by a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device. It can also be executed by a device that can implement all or part of the communication method. Logic module or software implementation of terminal equipment functions. The method includes: receiving a fifth availability indication, the fifth availability indication being used to indicate whether the configured tracking reference signal TRS is available. If the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication, the sixth validity period corresponding to the fifth availability indication is determined based on the changed default paging cycle, and the fifth validity period is based on the default paging cycle before the change. definite.

Based on this solution, when the default paging cycle changes within the validity period corresponding to an availability indication, the terminal device can use the changed default paging cycle to determine a new validity period, so that the terminal device can use the new validity period normally. The TRS configured within the terminal ensures that the terminal device can be awake and monitor the PO normally when the PO arrives, avoiding missing important information such as paging, SI modification instructions, or earthquake and tsunami warnings/commercial mobile alarms.

In a possible design, the method further includes: determining whether the configured TRS is available within the sixth validity period according to the fifth availability indication.

Based on this possible design, the terminal device can use the TRS available within the sixth validity period to perform background operations, thereby ensuring that the terminal device can be in the awake state and monitor the PO normally when the PO arrives, and reduce the impact of changes in the default paging cycle on PO monitoring. Influence.

In a possible design, the method further includes: receiving first system information, where the first system information is used to configure the TRS.

In the sixth aspect, a communication method is provided. The method can be executed by a network device, or by a component of the network device, such as a processor, a chip, or a chip system of the network device. It can also be executed by a device that can implement all or part of the communication method. Logic module or software implementation of network device functions. The method includes: sending a fifth availability indication, the fifth availability indication being used to indicate whether the configured tracking reference signal TRS is available. If the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication, the sixth validity period corresponding to the fifth availability indication is determined based on the changed default paging cycle, and the fifth validity period is based on the default paging cycle before the change. definite.

Based on this solution, when the default paging cycle changes within the validity period corresponding to an availability indication, the network device can use the changed default paging cycle to determine the new validity period, thereby sending available TRS within the new validity period. , so that the terminal equipment can normally use the TRS configured within the new validity period, thereby ensuring that the terminal equipment can be awake and monitor the PO normally when the PO arrives, to avoid the terminal equipment missing paging, SI modification instructions, or earthquake and tsunami warning/commercial Mobile alerts and other important information.

In a possible design, the method further includes: among the TRSs configured to be sent within the sixth validity period, the TRSs are indicated as available by the fifth availability indication.

Based on this possible design, the network device sends the available TRS within the sixth validity period, so that the terminal device can use the available TRS to perform background operations, thereby ensuring that the terminal device can be awake and listen to the PO normally when the PO arrives, reducing the default The impact of changes in paging cycle on PO monitoring.

In a possible design, the method further includes: sending first system information, where the first system information is used to configure the TRS.

In a seventh aspect, a communication device is provided for implementing various methods. The communication device may be the terminal equipment in the first, third or fifth aspect, or a device included in the terminal equipment, such as a chip or a chip system; or, the communication device may be the second or fourth aspect or Network equipment in the sixth aspect, or devices included in network equipment, such as chips or chip systems. The communication device It includes modules, units, or means (means) corresponding to the implementation method. The modules, units, or means can be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to functions.

In some possible designs, the communication device may include a processing module and a transceiver module. This processing module can be used to implement the processing functions in any of the above aspects and any possible implementation manner thereof. The transceiver module may include a receiving module and a sending module, respectively used to implement the receiving function and the sending function in any of the above aspects and any possible implementation manner thereof.

In some possible designs, the transceiver module can be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.

In an eighth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device performs the method described in any aspect. The communication device may be the terminal equipment in the first, third or fifth aspect, or a device included in the terminal equipment, such as a chip or a chip system; or, the communication device may be the second or fourth aspect or Network equipment in the sixth aspect, or devices included in network equipment, such as chips or chip systems.

A ninth aspect provides a communication device, including: a processor and a communication interface; the communication interface is used to communicate with modules external to the communication device; the processor is used to execute computer programs or instructions to enable the communication device Perform the methods described in either aspect. The communication device may be the terminal equipment in the first, third or fifth aspect, or a device included in the terminal equipment, such as a chip or a chip system; or, the communication device may be the second or fourth aspect or Network equipment in the sixth aspect, or devices included in network equipment, such as chips or chip systems.

In a tenth aspect, a communication device is provided, including: at least one processor; the processor is configured to execute a computer program or instructions stored in a memory, so that the communication device executes the method described in any aspect. The memory may be coupled to the processor, or may be independent of the processor. The communication device may be the terminal equipment in the first, third or fifth aspect, or a device included in the terminal equipment, such as a chip or a chip system; or, the communication device may be the second or fourth aspect or Network equipment in the sixth aspect, or devices included in network equipment, such as chips or chip systems.

In an eleventh aspect, a computer-readable storage medium is provided. Computer programs or instructions are stored in the computer-readable storage medium. When run on a communication device, the communication device can perform the method described in any aspect. .

A twelfth aspect provides a computer program product containing instructions that, when run on a communication device, enable the communication device to perform the method described in any aspect.

A thirteenth aspect provides a communication device (for example, the communication device may be a chip or a chip system). The communication device includes a processor for implementing the functions involved in any aspect.

In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

In some possible designs, when the device is a system-on-a-chip, it may be composed of a chip or may include chips and other discrete components.

It can be understood that when the communication device provided in any one of the seventh to thirteenth aspects is a chip, the sending action/function of the communication device can be understood as output information, and the receiving action/function of the communication device can be understood as input information. .

Among them, the technical effects brought by any design method in the seventh aspect to the thirteenth aspect can be referred to the technical effects brought by the different design methods in the first to sixth aspects, and will not be described again here.

Description of drawings

Figure 1 is a schematic diagram of an SSB-based background operation provided by this application;

Figure 2 is a schematic diagram of a background operation based on SSB and additional reference signals provided by this application;

Figure 3 is a schematic structural diagram of a communication system provided by this application;

Figure 4 is a schematic diagram of the time domain position of a paging cycle and paging timing provided by this application;

Figure 5 is a schematic diagram of a system information modification cycle provided by this application;

Figure 6 is a schematic comparison diagram of reference signal distribution in LTE and NR provided by this application;

Figure 7 is a schematic diagram of a layer 1 availability indication and its corresponding validity period provided by this application;

Figure 8 is a schematic flow chart of a communication method provided by this application;

Figure 9 is a schematic flow chart of another communication method provided by this application;

Figure 10 is a schematic diagram of a default paging cycle provided by this application that changes within the validity period;

Figure 11 is a schematic flow chart of another communication method provided by this application;

Figure 12 is a schematic diagram of another default paging cycle provided by this application that changes within the validity period;

Figure 13 is a schematic flow chart of another communication method provided by this application;

Figure 14 is a schematic diagram of another default paging cycle provided by this application that changes within the validity period;

Figure 15 is a schematic structural diagram of a communication device provided by this application;

Figure 16 is a schematic structural diagram of another communication device provided by the present application;

Figure 17 is a schematic structural diagram of yet another communication device provided by this application.

Detailed ways

In the description of this application, unless otherwise stated, "/" means that the related objects are in an "or" relationship. For example, A/B can mean A or B; "and/or" in this application only means It is an association relationship that describes associated objects. It means that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. Among them, A and B Can be singular or plural.

In the description of this application, unless otherwise stated, "plurality" means two or more than two. "At least one of the following" or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items). For example, at least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .

In addition, in order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as “first” and “second” are used to distinguish identical or similar items with basically the same functions and effects. Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not limit the number and execution order.

In the embodiments of this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "such as" in the embodiments of the present application is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner that is easier to understand.

It will be understood that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Therefore, various embodiments are not necessarily referred to the same embodiment throughout this specification. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It can be understood that in the various embodiments of the present application, the size of the sequence numbers of each process does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be determined by the execution order of the embodiments of the present application. The implementation process constitutes no limitation.

It can be understood that in this application, "... when", "when..." and "if" all refer to corresponding processing under certain objective circumstances. They do not limit the time, and do not require implementation. The act of judgment does not imply the existence of other limitations.

It can be understood that some optional features in the embodiments of the present application, in certain scenarios, can be implemented independently without relying on other features, such as the solutions they are currently based on, to solve corresponding technical problems and achieve corresponding effects. , and can also be combined with other features according to needs in certain scenarios. Correspondingly, the devices provided in the embodiments of the present application can also implement these features or functions, which will not be described again here.

In this application, unless otherwise specified, the same or similar parts between various embodiments may be referred to each other. In the various embodiments of this application, if there are no special instructions or logical conflicts, the terms and/or descriptions between different embodiments are consistent and can be referenced to each other. Different embodiments can be combined to form new ones according to their inherent logical relationships. embodiment. The embodiments of the present application described below do not constitute a limitation on the protection scope of the present application.

The technical solution provided by this application can be used in various communication systems. The communication system can be a third generation partnership project (3GPP) communication system, for example, the fourth generation (4th generation, 4G) long-term evolution (long term evolution, LTE) system, evolved LTE system (LTE-Advanced, LTE-A) system, fifth generation (5th generation, 5G) new radio (new radio, NR) system, vehicle to everything (V2X) system, LTE and NR hybrid networking system, or device-to-device (D2D) system, machine to machine (M2M) communication system, Internet of things (IoT), and Other next-generation communication systems, etc. Alternatively, the communication system may also be a non-3GPP communication system, without limitation.

Among them, the above-mentioned communication systems applicable to the present application are only examples. The communication systems applicable to the present application are not limited to these and will be explained uniformly here, and will not be described in detail below.

As shown in Figure 3, it is a schematic structural diagram of a possible communication system provided by this application. In FIG. 3 , the communication system includes at least one network device 310 and one or more terminal devices 320 connected to the network device 310 for illustration. It should be understood that the number of terminal devices and network devices in Figure 3 is only an example, and may be more or less.

Optionally, the network device 310 in the embodiment of this application is a device that connects the terminal device 320 to a wireless network. The network device 310 may be a node in a wireless access network, and may also be called a base station. It can also be called a radio access network (RAN) node (or device).

For example, the network equipment may include an evolved base station (evolutional Node B, NodeB or eNB or e-NodeB) in the LTE system or LTE-A system, such as a traditional macro base station eNB and a micro base station eNB in a heterogeneous network scenario. Alternatively, a next generation node B (gNB) in an NR system may be included. Alternatively, it may include next generation evolutionary base stations (next generation evolutionary base stations). Node B, ng-eNB) (that is, the 4G base station connected to the 5G core network). Alternatively, it may include a transmission reception point (TRP), a home base station (eg, home evolved NodeB, or home Node B, HNB), a base band unit (base band unit, BBU), a baseband pool (BBU pool), or Wireless fidelity (WiFi) access point (AP), etc. Alternatively, it can include base stations in NTN, that is, network equipment can be deployed on high-altitude platforms or satellites. In NTN, network equipment can serve as a layer 1 (L1) relay, or can serve as a base station, or can serve as a DU, or It can be used as an integrated access and backhaul (IAB) node. Alternatively, the network device may be a device that implements base station functions in IoT, such as V2X, D2D, or a device that implements base station functions in machine to machine (M2M), which is not limited by the embodiments of this application.

Optionally, the base stations in the embodiments of this application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, home base stations, TRPs, and transmitting points. , TP), mobile switching center, etc., the embodiments of this application do not specifically limit this.

Optionally, the terminal device 320 in the embodiment of this application may be a user-side device used to implement wireless communication functions, such as a terminal or a chip that can be used in a terminal. Among them, the terminal can be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, or a mobile station in a 5G network or a public land mobile network (PLMN) evolved after 5G. , remote station, remote terminal, mobile equipment, wireless communication equipment, terminal agent or terminal device, etc. The access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), or a device with wireless communications Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial) Wireless terminals in control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc. Alternatively, the terminal may be a terminal with communication functions in IoT, such as a terminal in V2X (such as an Internet of Vehicles device), a terminal in D2D communication, or a terminal in M2M communication, etc. Terminals can be mobile or fixed.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction to the relevant technologies of the present application is first provided as follows.

1. Paging:

The network can notify terminal devices in the radio resource control (RRC) idle state (RRC_IDLE) or RRC inactive state (RRC_INACTIVE) to receive paging messages through paging. Alternatively, the network can send a short message (short message) to the terminal device in the RRC idle state, RRC inactive state or RRC connected state (RRC_CONNECTED) through paging to indicate system information (SI) updates or earthquake and tsunami warnings /Commercial mobile alert (earthquake and tsunami warning system/commercial mobile alert service, ETWS/CAMS).

As shown in Figure 4, a terminal device in RRC idle state or RRC inactive state can monitor the paging occasion (PO) in each paging cycle to determine whether the network has paged the terminal device. . Among them, the PO corresponding to different terminal devices may be different.

The network can send paging downlink control information (DCI) within the PO. The paging DCI may include scheduling information of paging messages and/or short messages, etc. For example, the content in the paging DCI may be as shown in Table 1.

Table 1

Table 2

table 3

For the terminal device, if the paging DCI includes the scheduling information of the paging message, the terminal device receives and decodes the paging message on the physical downlink shared channel (PDSCH) according to the scheduling information, and then according to the paging message content for subsequent operations. If the paging DCI includes a short message, the terminal device receives updated system information and/or earthquake and tsunami warning/commercial mobile alarm according to the instructions of the short message.

2. System information (SI) and system information modification (system information modification):

System information can be divided into minimum system information (Minimum SI) and other system information (Other SI). The minimum system information includes master information block (MIB) and system information block 1 (SIB1). Network devices periodically broadcast MIBs on the broadcast channel (BCH). In addition, the network device periodically broadcasts SIB1 on the downlink shared channel (DL-SCH), or sends it to the terminal device in the RRC connected state through dedicated signaling.

Other system information includes other SIBs, for example, SIB2~SIB9, etc. Other SIBs are broadcast on the DL-SCH periodically or on-demand (for example, when the RRC idle state or RRC inactive state terminal device requests a certain SIB, the network device broadcasts it on the DL-SCH This SIB, otherwise the SIB will not be sent), or sent to the terminal device in the RRC connected state through dedicated signaling.

System information update refers to the network updating system information. In the process of updating system information, the network first needs to notify the terminal device that the system information will change, and then the updated system information can be broadcast.

In order to update system information, the standard defines the system information modification period (SI modification period). When system information needs to be updated, the network device first sends an SI modification indication (SI change modification) within an SI modification cycle. Specifically, the network device sends paging DCI on each PO within the SI modification period, and the paging DCI includes a short message to indicate the modification of the system information. Subsequently, the network device starts broadcasting the updated system information in the next SI modification cycle. The implementation of short messages can refer to the above Table 3 and will not be described in detail here.

For example, as shown in Figure 5, the network device first sends an SI modification indication on the PO within the SI modification period M1, and the terminal device receives the SI modification indication. Subsequently, the network device starts broadcasting the updated system information in the SI modification period M2, and the terminal device receives the new system information.

3. “Background” operation:

The terminal device in RRC idle state or RRC inactive state can complete "background" operations such as time-frequency tracking/synchronization based on at least one reference signal before PO to ensure that when PO arrives, The terminal device can enter the wake-up state to monitor normally. In the NR system, the reference signal is a synchronization signal/physical broadcast channel block (SSB). In the LTE system, the reference signal is a cell reference signal (cell reference signal). signal, CRS).

As shown in Figure 6, CRS in LTE is relatively dense, that is, the period of CRS is small and fixed at milliseconds (5ms). Therefore, the terminal device can wake up in advance not far before PO and use CRS to complete background operations. The terminal device can remain in a deep sleep state with lower power consumption before waking up.

SSB in NR is relatively sparse, that is, the period of SSB is larger (for example, 20ms, 40ms, 160ms, etc.). Therefore, the terminal device needs to wake up a long time in advance before PO, and use multiple SSB bursts (SSB bursts) to complete background operations. In addition, the terminal device can only remain in a light sleep state between SSB bursts. The power consumption of the terminal device in the light sleep state is greater than the power consumption in the deep sleep state. The SSB burst may include several SSBs.

In other words, when performing background operations, compared with LTE, the power consumption of terminal equipment in the RRC idle state or RRC inactive state in NR is greater. Based on this problem, a solution was proposed to use additional reference signals to assist terminal equipment in background operations.

The basic idea of this solution is to provide additional reference signals for terminal equipment in the RRC idle state or RRC inactive state to assist the terminal equipment in background operations and shorten the time for the terminal equipment to wake up in advance. An exemplary auxiliary method may be that the terminal device uses SSB and additional reference signals to complete background operations (such as the example shown in FIG. 2), or the terminal device only uses additional reference signals to complete background operations.

For example, the additional reference signal can be understood as a reference signal originally sent by the network device to the RRC connected terminal device through dedicated signaling (ie, RRC message). Alternatively, the additional reference signal may be understood as a reference signal other than SSB used for background operations before PO. The additional reference signal in this application is just a general name for this type of reference signal. This type of reference signal can also have other names, and this application does not specifically limit this.

For example, the additional reference signal type may be a tracking reference signal (TRS). It should be noted that in the following embodiments of the present application, the type of the additional reference signal is TRS as an example for description. This does not mean that this application limits the type of additional reference signals to only TRS. The type of the additional reference signal in this application may also be other types, which is not specifically limited in this application.

In addition, unless otherwise specified, the TRS in this application can be understood as the TRS that can be used by terminal equipment in the RRC idle state or RRC inactive state. In other words, it can be understood as TRS as an additional reference signal.

Usually, TRS configuration information can be carried in SIB17. The configuration information may include TRS resource set configuration information, validity duration information, etc.

The TRS resource set configuration information may include TRS frequency domain configuration information, TRS time domain configuration information, TRS scrambling identification information, TRS power information, and so on.

The validity period information is used to indicate the validity period (or validity time length) corresponding to the layer 1 availability indication (L1availability indication). The validity period is based on the default paging cycle. For example, the validity period can be 1 default paging cycle, 4 default paging cycles, etc.

Although the network device provides TRS configuration information in SIB17, whether the network device actually sends TRS, or whether the TRS resource set or TRS is finally available, still needs to be determined through the layer 1 availability indication and its corresponding validity period.

For example, as shown in Figure 7, the network device may send a layer 1 availability indication within a paging early indication (PEI). For example, the SSB in Figure 7 may be an SSB burst (SSB burst). In addition, the network device may also send this Layer 1 availability indication in the paging DCI.

After the terminal device receives the layer 1 availability indication, if the layer 1 availability indication indicates that its associated TRS resource set or TRS is available, the terminal device can determine the starting moment of its corresponding validity period according to the rules defined in the protocol. The starting time may be earlier than the time domain position of the PEI, may be later than the time domain position of the PEI, or may be the same as the time domain position of the PEI.

In the TRS resource set associated with this layer 1 availability indication, the TRS resources located within the validity period are available, or in other words, among the TRS associated with the layer 1 availability indication, the TRS located within the validity period are available, or the network device will send the association with the layer 1 availability indication The TRS resources are concentrated in the TRS within the validity period.

The TRS associated with the layer 1 availability indication can be understood as the TRS within the TRS resource set associated with the layer 1 availability indication. The TRS in the TRS resource set can be understood as the TRS sent on the resources in the TRS resource set.

For example, as shown in Figure 7, assume that the TRS resource sets associated with the layer 1 availability indication carried in the PEI are TRS resource set 1, TRS resource set 2, and TRS resource set 3, and the layer 1 availability indication indicates the TRS resource set 1. TRS resource set 2 and TRS resource set 3 are available. If the starting time of the validity period corresponding to the layer 1 availability indication is t1 and the end time is t2, then, based on the layer 1 availability indication and its corresponding validity period, it can be determined that TRS resource set 1 and TRS resource set 2 are available, and the TRS resource set 3 is not available.

After the validity period, the Tier 1 availability indication becomes invalid. The terminal device needs to receive the next layer 1 availability indication to determine the availability of the subsequent TRS resource set or TRS.

Optionally, the network device can be configured with multiple TRS resource sets, and each TRS resource set can include one or more TRS resources. exist When the TRS resource set includes multiple TRSs, the time-frequency locations of the multiple TRS resources may be the same. The TRS resources are used to carry TRS, and different scrambling identification information corresponding to different TRS resources is different. In other words, it can be considered that the scrambling identification information of the multiple TRSs is different, and different TRSs can be distinguished by different scrambling identification information. In addition, each TRS resource set may be associated with a layer 1 availability indication, and the layer 1 availability indications associated with different TRS resource sets may be the same or different.

Optionally, taking the network device configuring N TRS resource sets as an example, the network device can send the layer 1 availability indication associated with the N TRS resource sets in the form of a bitmap.

For example, the network device may send M bits, and each of the M bits may be understood as a layer 1 availability indication. Each of the M bits is associated with at least one TRS resource set among the N TRS resource sets, and different bits are associated with different TRS resource sets.

Different values of each bit can represent different layer 1 availability indications. For example, when a certain bit is set to "1 (or 0)", it indicates that the TRS resource set or TRS associated with the layer 1 availability indication is available. A certain bit When set to "0 (or 1)", indicates that this layer 1 availability indicates that the associated TRS resource set or TRS is unavailable.

Optionally, for each layer 1 availability indication indicating that its associated TRS resource set or TRS is available, the terminal device or network device may maintain its corresponding validity period for each layer 1 availability indication. For a Layer 1 availability indication indicating that its associated TRS resource set or TRS is unavailable, the terminal device or network device may not maintain its corresponding validity period.

For example, the layer 1 availability indication 1 indicates that its associated TRS resource set 1 is available, and the terminal device or network device maintains (for example, determines or updates) the validity period corresponding to the layer 1 availability indication 1. Layer 1 availability indication 2 indicates that its associated TRS resource set 2 is unavailable, and the terminal device or network device does not maintain the validity period corresponding to the layer 1 availability indication 2.

It can be seen from the above description that the length of the validity period corresponding to the layer 1 availability indication is based on the default paging cycle. However, the default paging cycle may change. There is currently no relevant solution for how the terminal device or network device handles this scenario.

At this time, if the terminal device and the network device process the layer 1 availability indication differently, the terminal device and the network device also have inconsistent understandings of the TRS resource set associated with the layer 1 availability indication or whether the TRS is available. There may be situations where the network device thinks that the TRS resource set or TRS is unavailable and therefore does not send TRS, but the terminal device still thinks that the TRS resource set or TRS is available. This may ultimately result in the terminal device being unable to receive enough reference signals to complete background operations. It affects the monitoring on the PO, thereby missing paging, SI modification instructions, or earthquake and tsunami warnings/commercial mobile alarms, etc.

Based on this, this application provides a communication method that stipulates the processing of terminal equipment when the default paging cycle changes, and reduces the impact of changes in the default paging cycle on PO monitoring.

The methods provided by the embodiments of the present application will be described below with reference to the accompanying drawings. It can be understood that in the embodiment of the present application, the network device or the terminal device can perform some or all of the steps in the embodiment of the present application. These steps or operations are only examples. The embodiment of the present application can also perform other operations or various operations. Deformation. In addition, various steps may be performed in a different order than those presented in the embodiments of the present application, and it may not be necessary to perform all operations in the embodiments of the present application.

As shown in Figure 8, a communication method provided by an embodiment of the present application includes the following steps:

S801. The network device sends the first system information. Correspondingly, the terminal device receives the first system information.

The first system information is used to configure TRS for the terminal device. The following embodiments of this application refer to this TRS as configured TRS. For example, the first system information may be SIB17. Of course, the first system information can also be other SIBs, which is not specifically limited in this application.

Optionally, the first system information may configure at least one TRS, that is, the configured TRS may include at least one TRS. When the first system information configures multiple TRSs, the configuration of the multiple TRSs can be implemented in the form of a TRS resource set.

For example, the network device may carry the configuration information of multiple TRS resource sets in the first system information. The configuration information of each TRS resource set may include TRS frequency domain configuration information, TRS time domain configuration information, and TRS addition information. interference identification information, TRS power information, etc. The frequency domain configuration information and time domain configuration information of the TRS may configure at least one TRS resource, and the at least one TRS resource is used to carry at least one TRS. That is, it can be considered that a TRS resource set can include (or correspond to) at least one TRS. The time-frequency position of at least one TRS resource included in a TRS resource set may be the same, and the scrambling identification information corresponding to different TRS resources is different.

S802. If the default paging cycle changes, the terminal device determines that the configured TRS is unavailable.

Optional, the configured TRS is unavailable can be understood as: the terminal device does not use the configured TRS; or the terminal device believes that the network device does not send the configured TRS; or the terminal device believes that the terminal device cannot receive the configured TRS .

Similarly, the configured TRS being available can be understood as: the terminal device uses the configured TRS; or the terminal device believes that the network device will send the configured TRS; or the terminal device believes that the terminal device can receive the configured TRS.

Optionally, the terminal device determines that the configured TRS is unavailable, which may include: the terminal device resets the configured TRS or TRS resource set to unavailable. For example, assume that before step S802, the network device carries availability indication 1 and availability indication 2 in the PEI. The availability indication 1 indicates that TRS resource set 1, TRS resource set 2, and TRS resource set 3 are available, and the availability indication 2 indicates that TRS resource set 1, TRS resource set 2, and TRS resource set 3 are available. TRS resource set 4 is unavailable. Then, after the default paging cycle changes, the terminal device can reset TRS resource set 1, TRS resource set 2, TRS resource set 3, and TRS resource set 4 to be unavailable.

It should be noted that in this application, whether the TRS is available can also be understood as whether the TRS resource set corresponding to the TRS is available. Therefore, in the embodiment of the application, "TRS is available" can also be described as "TRS resource set is available." can be replaced with each other; similarly, "TRS is not available" can also be described as "TRS resource set is not available", and the two can be replaced with each other.

Based on this solution, in the case where the default paging cycle changes, the terminal device determines that the configured TRS is unavailable. In this scenario, even if the network device does not send the configured TRS after the default paging cycle changes, because the terminal device has determined that the configured TRS is unavailable, the terminal device can perform background operations according to SSB according to the traditional solution, thereby ensuring that when the PO arrives At this time, the terminal device can be in the awake state and monitor the PO normally to avoid missing important information such as paging, SI modification instructions, or earthquake and tsunami warnings/commercial mobile alarms.

S803. If the default paging cycle changes, the network device determines that it does not need to send the configured TRS to the terminal device.

Optionally, for network equipment, if the default paging cycle changes, the network equipment can still send the configured TRS. For example, although the network device does not need to send a TRS to the terminal device because the terminal device determines that the configured TRS is unavailable, other terminal devices may still need to configure the TRS, such as a terminal device in the RRC connected state. In this case, Network devices may still need to send configured TRS. However, for the network device, since sending the configured TRS to the terminal device is no longer required, the probability of sending the configured TRS is reduced, and signaling overhead may be reduced.

Based on this solution, because the terminal device considers the configured TRS to be unavailable when the default paging cycle changes, even if the network device sends the configured TRS, the terminal device may not receive and use the configured TRS, resulting in a waste of resources. . Therefore, the network device does not need to send the configured TRS after the default paging cycle changes, thereby reducing resource waste and signaling overhead.

It should be noted that there is no strict sequence between the above-mentioned steps S802 and step S803. Step S802 can be executed first and then step S803; or step S803 can be executed first and then step S802; or step S802 and step S802 can be executed at the same time. S803, this application does not specifically limit this.

Optionally, as shown in Figure 9, before the default paging cycle changes, the communication method provided by this application may also include the following step S804:

S804. The network device sends the first availability indication. Correspondingly, the terminal device receives the first availability indication.

Optionally, the first availability indication is the availability indication before the default paging cycle changes. For example, the first availability indication is the last availability indication before the default paging cycle changes.

It should be noted that the availability indication in the solution of this application can also be called the layer 1 availability indication, and the two can be replaced with each other, and this application does not specifically limit this.

Optionally, the first availability indication is used to indicate the availability of the configured TRS. In other words, the first availability indication is used to indicate whether the configured TRS is available.

Optionally, when the first system information configures multiple TRSs, and the configuration of multiple TRSs is implemented through multiple TRS resource sets, the first availability indication may include each TRS resource in the multiple TRS resource sets. Set associated availability indication. The availability indications associated with different TRS resource sets may be different.

For example, taking the first system information including configuration information of TRS resource set 1 and configuration information of TRS resource set 2, the first availability indication may include availability indication 1 associated with TRS resource set 1 and TRS resource set 2 associated Availability indication 2. Availability indication 1 may indicate that the TRS in TRS resource set 1 is available or unavailable, and availability indication 2 may indicate that the TRS in TRS resource set 2 is available or unavailable.

Optionally, the default paging cycle may change within the first validity period corresponding to the first availability indication. The first validity period corresponding to the first availability indication is determined by the default paging cycle before the change.

For example, the first validity period corresponding to the first availability indication may be: the validity period corresponding to the availability indication used to indicate that the TRS resource set is available in the first availability indication. For example, the first availability indication includes availability indication 1 and availability indication 2. The availability indication 1 indicates that the TRSs in TRS resource set 1, TRS resource set 2, and TRS resource set 3 are available, and the availability indication 2 indicates that the TRSs in TRS resource set 4 are available. For example, if TRS is not available, the first validity period corresponding to the first availability indication is the validity period corresponding to availability indication 1.

Optionally, the first indication information can be implemented in the form of a bitmap. For example, taking the network device to implement the configuration of multiple TRSs through N TRS resource sets, the first indication information may be a bitmap including M bits. Each of the M bits may be associated with at least one TRS resource set among the N TRS resource sets. The value of a certain bit can be used to indicate whether the TRS in the TRS resource set associated with the bit is available. N and M are positive integers, please refer to the above related explanations and will not be repeated here.

Optionally, when the default paging cycle changes within the first validity period corresponding to the first availability indication, the terminal device determining that the configured TRS is unavailable may include: the terminal device determines that the configured TRS is within the remaining time of the first validity period. unavailable.

For example, the remaining time of the first validity period may be: the time interval between the time when the terminal device determines that the default paging cycle changes within the first validity period and the end time of the first validity period.

For example, as shown in Figure 10, assume that the PEI carries a first availability indication, the start time of the first validity period corresponding to the first availability indication is t1, the end time is t2, and the terminal device determines default paging at time t3 The period changes, then the remaining time of the first validity period is the time interval between t2 and t3.

Based on the example shown in Figure 10, assuming that the first validity period corresponds to availability indication 1 in the first availability indication, and this availability indication 1 is associated with TRS resource set 1, TRS resource set 2, and TRS resource set 3, then, in the default paging Before the period changes, the terminal device may determine that TRS resource set 1, TRS resource set 2, and TRS resource set 3 are available according to the availability indication 1 and the first validity period. After the default paging cycle changes, since the TRS resource set 3 is located within the remaining time of the first validity period, the terminal device may determine that the TRS resource set 3 is unavailable.

Optionally, the terminal device determines that the default paging cycle changes within the first validity period, which may include: the terminal device receives second system information from the network device within the first validity period, and learns the default paging cycle based on the second system information. changes occur.

For example, the second system information may include the value of the changed default paging cycle, or may include information indicating the changed default paging cycle. For example, multiple default paging cycles may be predefined, and each default paging cycle in the multiple default paging cycles corresponds to an index. Then, the second system information may include an index, and the default paging cycle corresponding to the index The cycle is the changed default paging cycle.

Optionally, the second system information may be SIB1. The SIB1 may also be understood as the SIB1 updated by the network device, which includes the value of the changed default paging cycle, or includes information indicating the changed default paging cycle.

Optionally, if the default paging cycle changes within the first validity period corresponding to the first availability indication, the terminal device may also determine that the first validity period has expired.

For example, the terminal device determining that the first validity period has expired may include: the terminal device stops timing the first validity period, or the terminal device stops the timer of the first validity period; or determines that the first validity period is over.

Optionally, the terminal device can immediately determine that the first validity period has expired after learning that the default paging cycle has changed. In other words, the terminal device may consider that the end time of the first validity period is updated as the time when the terminal device determines that the default paging cycle changes. For example, based on the example shown in Figure 10, the terminal device may consider that the end time of the first validity period is updated from t2 to t3.

Optionally, when the default paging cycle changes within the first validity period corresponding to the first availability indication, the network device determines that it does not need to send the configured TRS to the terminal device, which may include: the network device determines that within the remaining time of the first validity period There is no need to send configured TRS to the terminal device. For the remaining time of the first validity period, please refer to the above-mentioned relevant explanations and will not be repeated here.

Based on the example shown in Figure 10, after the default paging cycle changes, since TRS resource set 3 is located within the remaining time of the first validity period, the network device can determine that it is not necessary to send the TRS in TRS resource set 3 to the terminal device. .

Optionally, as shown in Figure 9, after the default paging cycle changes, the communication method provided by this application may also include the following steps S805 to S807:

S805. The network device sends a second availability indication. Correspondingly, the terminal device receives the second availability indication.

Optionally, the second availability indication is an availability indication after the default paging cycle is changed. For example, the second availability indication is the first availability indication after the default paging cycle is changed.

Optionally, the second availability indication is used to indicate the availability of the configured TRS. In other words, the second availability indication is used to indicate whether the configured TRS is available.

Optionally, when the first system information configures multiple TRSs, and the configuration of multiple TRSs is implemented through multiple TRS resource sets, the second availability indication may include each TRS resource in the multiple TRS resource sets. For the set-associated availability indication, please refer to the above-mentioned related description of the first availability indication, which will not be described again here.

S806: The terminal device determines whether the configured TRS is available according to the second availability indication.

Optionally, the terminal device may determine according to the second availability indication whether the configured TRS is available within the second validity period corresponding to the second availability indication.

For example, the second validity period corresponding to the second availability indication may be: the validity period corresponding to the availability indication used to indicate that the TRS resource set is available in the second availability indication. The second validity period is determined based on the changed default paging cycle.

For example, the second availability indication includes availability indication 1 and availability indication 2. The availability indication 1 indicates that TRS resource set 1 and TRS resource set 2 are unavailable, and the availability indication 2 indicates that TRS resource set 3, TRS resource set 4, and TRS Resource set 5 is available as an example, the second can The second validity period corresponding to the availability indication is the validity period corresponding to availability indication 2.

If TRS resource set 3 and TRS resource set 4 are within the second validity period, and TRS resource set 5 is outside the second validity period, then the terminal device can determine according to the second availability indication and the second validity period: TRS resource set 1 and TRS resource set 2. TRS resource set 5 and TRS resource set 5 are not available, but TRS resource set 3 and TRS resource set 4 are available. Among them, the reason why TRS resource set 1 and TRS resource set 2 are unavailable is that the availability indication 1 indicates that they are unavailable. Even though TRS resource set 1 and TRS resource set 2 may be within the second validity period, the TRS resource set 1 and TRS resource set 2 are not available. 2 is also not available.

Optionally, through the above steps S805 and S806, it can be considered that the terminal device re-determines whether the configured TRS is available after receiving the first availability indication after the default paging cycle is changed. In the above step S802, if the default paging cycle changes, the terminal device determines that the configured TRS is unavailable. Therefore, combined with steps S802, S805, and S806, it can be considered that: if the default paging cycle changes, the terminal device determines that the configured TRS is unavailable. The TRS is not available until it receives an availability indication associated with that TRS.

Furthermore, combined with the situation that the default paging cycle changes within the first validity period corresponding to the first availability indication, and the terminal device determines that the configured TRS is unavailable during the remaining time of the first validity period, it can be considered that: if the default paging cycle is within If a change occurs within the first validity period, the terminal device considers that the configured TRS is unavailable after the default paging cycle changes and before receiving a new availability indication. The new availability indication may be the first availability indication after the default paging cycle is changed.

S807: The network device determines whether to send the configured TRS according to the second availability indication.

Optionally, the network device may determine according to the second availability indication whether to send the configured TRS within the second validity period corresponding to the second availability indication. For the second validity period, please refer to the relevant description in step S806 above, which will not be described again here.

For example, the second availability indication includes availability indication 1 and availability indication 2. The availability indication 1 indicates that TRS resource set 1 and TRS resource set 2 are unavailable, and the availability indication 2 indicates that TRS resource set 3, TRS resource set 4, and TRS Resource set 5 is available. For example, if TRS resource set 3 and TRS resource set 4 are within the second validity period, and TRS resource set 5 is outside the second validity period, then the network device can determine according to the second availability indication and the second validity period: During the second validity period, TRS in TRS resource set 3 and TRS resource set 4 will be sent, and TRS in TRS resource set 1, TRS resource set 2, and TRS resource set 5 will not be sent. Among them, the reason for not sending the TRS in TRS resource set 1 and TRS resource set 2 is that the availability indication 1 indicates that it is unavailable. Even though TRS resource set 1 and TRS resource set 2 may be within the second validity period, the network device does not need to send them. Among them TRS.

It should be noted that there is no strict sequence between the above-mentioned steps S807 and step S806. Step S807 can be executed first and then step S806; or step S806 can be executed first and then step S807; or step S807 and step S807 can be executed at the same time. S806, this application does not specifically limit this.

In addition to the method shown in Figure 8, the embodiment of the present application also provides another communication method, as shown in Figure 11. The communication method includes the following steps:

S1101. The network device sends a third availability indication. Correspondingly, the terminal device receives the third availability indication. Wherein, the third availability indication is used to indicate whether the configured TRS is available.

Optionally, before step S1101, the network device may send first system information, where the first system information is used to configure TRS. Correspondingly, the terminal device receives the first system information and learns the TRS configured by the network device according to the first system information. For the first system information, reference may be made to the relevant description in the above step S801, which will not be described again here.

Optionally, the third availability indication is the availability indication before the default paging cycle changes. For example, the third availability indication is the last availability indication before the default paging cycle changes.

Optionally, when the first system information configures multiple TRSs, and the configuration of multiple TRSs is implemented through multiple TRS resource sets, the third availability indication may include each TRS resource in the multiple TRS resource sets. Set associated availability indication. The availability indications associated with different TRS resource sets may be different. Reference may be made to the relevant description of the above first availability indication, which will not be described again here.

Optionally, after receiving the third availability indication, the terminal device may determine whether the configured TRS is available within the third validity period corresponding to the third availability indication according to the third availability indication. The third validity period is determined based on the default paging cycle before the change. In other words, the terminal device may determine whether the configured TRS is available within the third validity period according to the third availability indication before the default paging cycle changes.

Optionally, the third validity period corresponding to the third availability indication may be: the validity period corresponding to the availability indication used to indicate that the TRS resource set is available in the third availability indication. The third availability indication may be implemented in the form of a bitmap. Reference may be made to the relevant description of the above first availability indication, which will not be described again here.

For example, as shown in Figure 12, the third availability indication includes availability indication 1 and availability indication 2. The availability indication 1 indicates that TRS resource set 1, TRS resource set 2, and TRS resource set 3 are available, and the availability indication 2 indicates that TRS For example, if resource set 4 is unavailable, the third validity period corresponding to the third availability indication is the validity period corresponding to availability indication 1.

In addition, based on the example shown in Figure 12, assuming that the start time of the third validity period is t1, the end time is t2, and TRS resource set 1, TRS resource set 2, and TRS resource set 3 are all located within the third validity period, then the terminal The device may determine, according to the third availability indication, that the TRSs in TRS resource set 1, TRS resource set 2, and TRS resource set 3 are available within the third validity period.

In addition, for the network device, based on the example shown in FIG. 12, the network device may determine to send the TRS within the TRS resource set 1, TRS resource set 2, and TRS resource set 3 within the third validity period.

S1102. If the default paging cycle changes within the third validity period corresponding to the third availability indication, the terminal device remains unchanged during the third validity period. The third validity period is determined based on the default paging cycle before the change.

Optionally, if the terminal device receives the second system information from the network device within the third validity period, and the second information indicates the changed default paging cycle, then the terminal device can determine that the default paging cycle is in the third validity period. Three changes occur within the validity period. Illustratively, based on the example shown in Figure 12, the terminal device may determine that the default paging cycle changes at time t3.

Optionally, keeping the availability of the configured TRS unchanged during the third validity period may include: keeping the availability of the configured TRS unchanged during the third validity period.

Illustratively, based on the example shown in Figure 12, in step S1102, the terminal device may consider that the availability of TRS resource set 1, TRS resource set 2, and TRS resource set 3 remains unchanged during the third validity period, that is, TRS resource set 1 , TRS resource set 2, and TRS resource set 3 are still available during the third validity period. That is to say, even if the default paging cycle changes before TRS resource set 3, the terminal device still considers that TRS resource set 3 is available within the third validity period.

S1103. If the default paging cycle changes within the third validity period corresponding to the third availability indication, the network device remains unchanged during the third validity period.

Optionally, keeping the configured TRS unchanged within the third validity period may include: keeping the configured TRS sent within the third validity period unchanged.

Illustratively, based on the example shown in Figure 12, in step S1103, the network device may consider that the transmission of TRS in TRS resource set 1, TRS resource set 2, and TRS resource set 3 remains unchanged during the third validity period, that is, the network device The device still sends TRS in TRS resource set 1, TRS resource set 2, and TRS resource set 3 within the third validity period. That is to say, even if the default paging cycle changes before TRS resource set 3, the network device still sends the TRS in TRS resource set 3 within the third validity period.

It should be noted that there is no strict sequence between the above-mentioned steps S1102 and step S1103. Step S1102 can be executed first and then step S1103; or step S1103 can be executed first and then step S1102; or step S1102 and step S1102 can be executed at the same time. S1103, this application does not specifically limit this.

Optionally, after steps S1102 and S1103, the method may also include the following steps:

S1104. The network device sends a fourth availability indication. Correspondingly, the terminal device receives the fourth availability indication.

The fourth availability indication is used to indicate whether the configured TRS is available. The fourth availability indication may be an availability indication after the default paging cycle is changed.

Optionally, the network device may send the fourth availability indication after the third validity period ends. The fourth validity period corresponding to the fourth availability indication may be determined according to the changed default paging cycle.

Optionally, after receiving the fourth availability indication, the terminal device may determine whether the configured TRS is available according to the fourth availability indication. For example, it may be determined according to the fourth availability indication whether the configured TRS is available within the fourth validity period. Reference may be made to the related description of the terminal device determining whether the configured TRS is available according to the third availability indication, which will not be described again here.

Based on this solution, when the default paging cycle changes within the validity period corresponding to an availability indication, the terminal device or network device remains unchanged for the third validity period, that is, the terminal device or network device considers the availability indication and its corresponding The validity period is not affected by changes in the default paging cycle. For example, the terminal device keeps the availability of the configured TRS in the third validity period unchanged, and the network device keeps the sending of the configured TRS in the third validity period unchanged. This enables the terminal device to normally use the TRS configured within the validity period, thereby ensuring that the terminal device can be awake and monitor the PO normally when the PO arrives, avoiding missing paging, SI modification instructions, or earthquake and tsunami warnings/commercial mobile alarms and other important information.

In addition, when the default paging cycle changes within the validity period corresponding to an availability indication, the terminal equipment and network equipment believe that the availability indication and its corresponding validity period are not affected by the change in the default paging cycle, which can reduce some possible Additional maintenance operations (such as stopping the validity period or timer) can reduce power consumption.

In addition to the methods shown in Figures 8 and 11, the embodiment of the present application also provides another communication method, as shown in Figure 13, the communication method includes the following steps:

S1301. The network device sends a fifth availability indication. Correspondingly, the terminal device receives the fifth availability indication. Wherein, the fifth availability indication is used to indicate whether the configured TRS is available.

Optionally, before step S1301, the network device may send first system information, where the first system information is used to configure TRS. Correspondingly, the terminal device receives the first system information and learns the TRS configured by the network device according to the first system information. Among them, the first system information can be Refer to the relevant description in step S801 above, which will not be described again here.

Optionally, the fifth availability indication is the availability indication before the default paging cycle changes. For example, the fifth availability indication is the last availability indication before the default paging cycle changes.

Optionally, when the first system information configures multiple TRSs, and the configuration of multiple TRSs is implemented through multiple TRS resource sets, the fifth availability indication may include each TRS resource in the multiple TRS resource sets. Set associated availability indication. The availability indications associated with different TRS resource sets may be different. Reference may be made to the relevant description of the above first availability indication, which will not be described again here.

Optionally, the default paging cycle may change within the fifth validity period corresponding to the fifth availability indication. The fifth validity period is determined based on the default paging cycle before the change.

Optionally, the fifth validity period corresponding to the fifth availability indication may be: the validity period corresponding to the availability indication used to indicate that the TRS resource set is available in the fifth availability indication. The fifth availability indication can be implemented in the form of a bitmap. Reference may be made to the relevant description of the above first availability indication, which will not be described again here.

As an example, taking the fifth availability indication including availability indication 1 and availability indication 2, where the availability indication 1 indicates that TRS resource set 1 and TRS resource set 2 are available, and the availability indication 2 indicates that TRS resource set 3 is unavailable, the fifth availability indication The fifth validity period corresponding to the indication is the validity period corresponding to availability indication 1.

If the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication, the terminal device and the network device may perform the following steps S1302 and S1303 respectively.

S1302. If the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication, the terminal device determines the sixth validity period corresponding to the fifth availability indication based on the changed default paging cycle.

Optionally, the sixth validity period corresponding to the fifth availability indication may be: the validity period corresponding to the availability indication used to indicate that the TRS resource set is available in the fifth availability indication.

For example, taking the fifth availability indication including availability indication 1 and availability indication 2, where the availability indication 1 indicates that TRS resource set 1 and TRS resource set 2 are available, and the availability indication 2 indicates that TRS resource set 3 is unavailable, the sixth availability indication The fifth validity period corresponding to the indication is the validity period corresponding to availability indication 1. That is to say, the sixth validity period and the fifth validity period can correspond to the same availability indication. The difference between them is that the values are different. The sixth validity period is determined based on the default paging cycle after the change, and the fifth validity period is based on the pre-change default paging cycle. The default paging cycle is determined.

S1303. If the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication, the terminal device determines the sixth validity period corresponding to the fifth availability indication based on the changed default paging cycle.

That is to say, if the default paging cycle changes within the validity period corresponding to an availability indication, the change can take effect immediately, and the terminal equipment and network equipment can determine the new availability indication corresponding to the changed default paging cycle. Validity period.

Optionally, the starting time of the sixth validity period and the starting time of the fifth validity period may be the same or different, and may be determined by an algorithm of the starting time of the validity period, which is not specifically limited in this application.

Based on this solution, when the default paging cycle changes within the validity period corresponding to an availability indication, the terminal device or network device can immediately use the changed default paging cycle to determine the new validity period, so that the terminal device can normally Use the TRS configured within the new validity period to ensure that the terminal device can be awake and monitor the PO normally when the PO arrives, to avoid missing important information such as paging, SI modification instructions, or earthquake and tsunami warnings/commercial mobile alerts. In addition, the terminal device or network device immediately uses the changed default paging cycle, which can shorten the delay for the network device to change the configuration in the system.

It should be noted that there is no strict sequence between the above-mentioned steps S1302 and step S1303. Step S1302 can be executed first and then step S1303; or step S1303 can be executed first and then step S1302; or step S1302 and step S1302 can be executed simultaneously. S1303, this application does not specifically limit this.

Optionally, after steps S1302 and S1303, the method may also include the following steps:

S1304. The terminal device determines whether the configured TRS is available within the sixth validity period according to the fifth availability indication.

Optionally, if the fifth availability indication indicates that a configured TRS resource set is unavailable, the terminal device may determine that the TRS in the TRS resource set is unavailable within the sixth validity period. If the fifth availability indication indicates that a configured TRS resource set is available and the TRS resource set is within the sixth validity period, the terminal device may determine that the TRS in the TRS resource set is available within the sixth validity period.

For example, as shown in Figure 14, the fifth availability indication includes availability indication 1 and availability indication 2. The availability indication 1 indicates that TRS resource set 1 and TRS resource set 2 are available, and the availability indication 2 indicates that TRS resource set 3 is not available. For example, the terminal device may determine that TRS resource set 3 is unavailable within the sixth validity period.

Assume that the start time of the fifth validity period is t1 and the end time is t2. The terminal device determines that the default paging cycle changes at time t3 within the fifth validity period, and the start time of the sixth validity period is t1. Under this assumption, if the end time of the sixth validity period is t4, the terminal device can confirm It is determined that TRS resource set 1 is available during the sixth validity period, and TRS resource set 2 is not available during the sixth validity period. If the end time of the sixth validity period is t5, the terminal device can determine that both TRS resource set 1 and TRS resource set 2 are available within the sixth validity period.

S1305. Among the configured TRSs sent by the network device within the sixth validity period, the TRSs are indicated as available by the fifth availability indication. Correspondingly, the terminal device may receive the available TRS determined by the terminal device within the sixth validity period.

Illustratively, based on the example shown in Figure 14, the network device does not send TRS in TRS resource set 3 during the sixth validity period. If the end time of the sixth validity period is t4, the network device sends the TRS in TRS resource set 1 and does not send the TRS in TRS resource set 2 during the sixth validity period. If the end time of the sixth validity period is t5, the network device sends the TRS in TRS resource set 1 and TRS resource set 2 within the sixth validity period.

Optionally, after step S1305, the network device may also send a sixth availability indication, where the sixth availability indication is used to indicate whether the configured TRS is available. The validity period corresponding to the sixth availability indication may be determined based on the changed default paging cycle. After receiving the sixth availability indication, the terminal device can determine whether the configured TRS is available.

It should be noted that in the above embodiments of the present application, after the terminal device determines that the TRS is available, it can receive the TRS or choose not to receive the TRS. Whether to ultimately receive the available TRS is determined by the implementation of the terminal device. After the terminal device determines that the TRS is unavailable, it does not receive or use the unavailable TRS.

It can be understood that in the above embodiments, the methods and/or steps implemented by the network device can also be implemented by components (such as processors, chips, chip systems, circuits, logic modules, or software that can be used in the network device). chip or circuit); the methods and/or steps implemented by the terminal device can also be implemented by components (such as processors, chips, chip systems, circuits, logic modules, or software such as chips or circuits) that can be used in the terminal device. .

It can be understood that, in order to implement the above functions, the communication device includes corresponding hardware structures and/or software modules for performing each function. Persons skilled in the art should easily realize that, with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Embodiments of the present application can divide the communication device into functional modules according to the above method embodiments. For example, functional modules can be divided into corresponding functional modules, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods.

Communication Device FIG. 15 shows a schematic structural diagram of a communication device 150 . The communication device 150 includes a processing module 1501 and a transceiver module 1502. The communication device 150 can be used to implement the functions of the above-mentioned network equipment or terminal equipment.

In some embodiments, the communication device 150 may also include a storage module (not shown in Figure 15) for storing program instructions and data.

In some embodiments, the transceiver module 1502, which may also be called a transceiver unit, is used to implement sending and/or receiving functions. The transceiver module 1502 may be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

In some embodiments, the transceiver module 1502 may include a receiving module and a sending module, respectively configured to perform the receiving and sending steps performed by the network device or terminal device in the above method embodiments, and/or to support the steps described herein. Other processes of the described technology; the processing module 1501 can be used to perform steps of the processing class (such as determining, generating, etc.) performed by the network device or the terminal device in the above method embodiments, and/or to support the steps described herein. Other processes of technology.

When the communication device 150 is used to implement the functions of the above terminal device:

As a first possible implementation, the transceiver module 1502 is configured to receive the first system information, which is used to configure the tracking reference signal TRS; the processing module 1501 is configured to, when the default paging cycle changes, Determine the configured TRS is not available.

Optionally, before the default paging cycle changes, the transceiving module 1502 is also configured to receive a first availability indication, where the first availability indication is used to indicate whether the configured TRS is available. The processing module 1501 is used to determine that the configured TRS is unavailable when the default paging cycle changes, including: the processing module 1501 is used to change the default paging cycle within the first validity period corresponding to the first availability indication. In the case of , it is determined that the configured TRS is unavailable during the remaining period of the first validity period.

Optionally, the processing module 1501 is also configured to determine that the first validity period has expired when the default paging cycle changes within the first validity period corresponding to the first availability indication.

Optionally, the processing module 1501 is used to determine that the first validity period has expired, including: the processing module 1501 is used to stop the timing of the first validity period; or, the processing module 1501 is used to stop the timer of the first validity period; or, the processing module 1501 is used to stop the timer of the first validity period; Module 1501 is used to determine the end of the first validity period.

Optionally, the first validity period is determined based on the default paging cycle before the change.

Optionally, after the default paging cycle changes, the transceiving module 1502 is also configured to receive a second availability indication; the processing module 1501 is also configured to determine whether the configured TRS is available according to the second availability indication.

Optionally, the second availability indication is used to indicate whether the configured TRS is available. The processing module 1501 is also configured to determine whether the configured TRS is available according to the second availability indication, including: the processing module 1501 is also configured to determine whether the configured TRS is available within the second validity period corresponding to the second availability indication according to the second availability indication. .

Optionally, the second validity period is determined based on the changed default paging cycle.

As a second possible implementation, the transceiver module 1502 is configured to receive a third availability indication, which is used to indicate whether the configured tracking reference signal TRS is available. The processing module 1501 is configured to keep the third validity period unchanged when the default paging cycle changes within the third validity period corresponding to the third availability indication. The third validity period is determined based on the default paging cycle before the change. of.

Optionally, the processing module 1501 is used to keep the availability of the configured TRS unchanged during the third validity period, including: the processing module 1501 is used to keep the availability of the configured TRS unchanged during the third validity period.

Optionally, the processing module 1501 is also configured to determine whether the configured TRS is available within the third validity period according to the third availability indication.

Optionally, the transceiver module 1502 is also used to receive first system information, and the first system information is used to configure the TRS.

As a third possible implementation, the transceiver module 1502 is configured to receive a fifth availability indication. The fifth availability indication is used to indicate whether the configured tracking reference signal TRS is available. The processing module 1501 is configured to determine the sixth validity period corresponding to the fifth availability indication and the fifth validity period based on the changed default paging cycle when the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication. It is determined based on the default paging cycle before the change.

Optionally, the processing module 1501 is also configured to determine whether the configured TRS is available within the sixth validity period according to the fifth availability indication.

Optionally, the transceiver module 1502 is also used to receive first system information, and the first system information is used to configure the TRS.

When the communication device 150 is used to implement the functions of the above-mentioned network equipment:

As a first possible implementation, the transceiver module 1502 is used to send the first system information, and the first system information is used to configure the tracking reference signal TRS for the terminal device; the processing module 1501 is used when the default paging cycle changes. Next, confirm that there is no need to send the configured TRS to the terminal device.

Optionally, before the default paging cycle changes, the transceiving module 1502 is also configured to send a first availability indication, where the first availability indication is used to indicate whether the configured TRS is available. The processing module 1501 is used to determine that it is not necessary to send the configured TRS to the terminal device when the default paging cycle changes, including: the processing module 1501 is used to set the first availability indication corresponding to the first availability indication in the default paging cycle. If a change occurs within the validity period, it is determined that there is no need to send the configured TRS to the terminal device during the remaining time of the first validity period.

The optional first validity period is determined based on the default paging cycle before the change.

Optionally, after the default paging cycle changes, the transceiving module 1502 is also configured to send a second availability indication; and determine whether to send the configured TRS according to the second availability indication.

Optionally, the second availability indication is used to indicate whether the configured TRS is available; the processing module 1501 is used to determine whether to send the configured TRS according to the second availability indication, including: the processing module 1501 is used to determine whether to send the configured TRS according to the second availability indication. The second availability indicates whether the configured TRS is sent within the corresponding second validity period.

Optionally, the second validity period is determined based on the changed default paging cycle.

As a second possible implementation, the transceiving module 1502 is configured to send a third availability indication. The third availability indication is used to indicate whether the configured tracking reference signal TRS is available. The processing module 1501 is configured to keep the third validity period unchanged when the default paging cycle changes within the third validity period corresponding to the third availability indication. The third validity period is determined based on the default paging cycle before the change. .

Optionally, the processing module 1501 is used to keep the sending of the configured TRS unchanged during the third validity period, including: the processing module 1501 is used to keep the sending of the configured TRS unchanged during the third validity period.

Optionally, the transceiving module 1502 is also used to send first system information, and the first system information is used to configure the TRS.

As a third possible implementation, the transceiving module 1502 is configured to send a fifth availability indication. The fifth availability indication is used to indicate whether the configured tracking reference signal TRS is available. The processing module 1501 is configured to determine the sixth validity period corresponding to the fifth availability indication and the fifth validity period based on the changed default paging cycle when the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication. It is determined based on the default paging cycle before the change.

Optionally, the transceiving module 1502 is also configured to send TRSs that are indicated as available by the fifth availability indication among the configured TRSs within the sixth validity period.

Optionally, the transceiving module 1502 is also used to send first system information, and the first system information is used to configure the TRS.

All relevant content of each step involved in the above method embodiments can be quoted from the functional description of the corresponding functional module, and will not be described again here.

In this application, the communication device 150 may be presented in the form of dividing various functional modules in an integrated manner. A "module" here may refer to an application-specific integrated circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or others that may provide the above functions. device.

In some embodiments, when the communication device 150 in FIG. 15 is a chip or a chip system, the function/implementation process of the transceiver module 1502 can be implemented through the input and output interface (or communication interface) of the chip or chip system, and the processing module 1501 The function/implementation process can be realized by the processor (or processing circuit) of the chip or chip system.

Since the communication device 150 provided in this embodiment can perform the above method, the technical effects it can obtain can be referred to the above method embodiment, which will not be described again here.

As a possible product form, the terminal equipment or network equipment described in the embodiments of this application can also be implemented using the following: one or more field programmable gate arrays (FPGA), programmable logic A programmable logic device (PLD), controller, state machine, gate logic, discrete hardware component, any other suitable circuit, or any combination of circuits capable of performing the various functions described throughout this application.

As another possible product form, the terminal equipment or network equipment described in the embodiments of this application can be implemented by a general bus architecture. For ease of explanation, refer to FIG. 16 , which is a schematic structural diagram of a communication device 1600 provided by an embodiment of the present application. The communication device 1600 includes a processor 1601 and a transceiver 1602 . The communication device 1600 may be a network device, or a chip or a chip system thereof; or, the communication device 1600 may be a terminal device, or a chip or module thereof. Figure 16 shows only the main components of the communication device 1600. In addition to the processor 1601 and the transceiver 1602, the communication device may further include a memory 1603 and an input and output device (not shown).

Optionally, the processor 1601 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process data of the software programs. Memory 1603 is mainly used to store software programs and data. The transceiver 1602 may include a radio frequency circuit and an antenna. The radio frequency circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.

Optionally, the processor 1601, the transceiver 1602, and the memory 1603 can be connected through a communication bus.

When the communication device is turned on, the processor 1601 can read the software program in the memory 1603, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 1601 performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1601. The processor 1601 converts the baseband signal into data and performs processing on the data. deal with.

In another implementation, the radio frequency circuit and antenna can be arranged independently of the processor that performs baseband processing. For example, in a distributed scenario, the radio frequency circuit and antenna can be arranged remotely and independently of the communication device. .

In some embodiments, in terms of hardware implementation, those skilled in the art can imagine that the above-mentioned communication device 150 may take the form of the communication device 1600 shown in FIG. 16 .

As an example, the function/implementation process of the processing module 1501 in Figure 15 can be implemented by the processor 1601 in the communication device 1600 shown in Figure 16 calling the computer execution instructions stored in the memory 1603. The function/implementation process of the transceiver module 1502 in Figure 15 can be implemented by the transceiver 1602 in the communication device 1600 shown in Figure 16 .

As another possible product form, the network equipment or terminal equipment in this application can adopt the composition structure shown in Figure 17, or include the components shown in Figure 17. Figure 17 is a schematic diagram of the composition of a communication device 1700 provided by this application. The communication device 1700 may be a terminal device or a chip or system on a chip in the terminal device; or it may be a network device or a module or chip in the network device or an on-chip system. system.

As shown in Figure 17, the communication device 1700 includes at least one processor 1701 and at least one communication interface (Figure 17 is only an example of including a communication interface 1704 and a processor 1701 for illustration). Optionally, the communication device 1700 may also include a communication bus 1702 and a memory 1703.

The processor 1701 can be a general central processing unit (CPU), a general processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, or a microcontroller device, programmable logic device (PLD), or any combination thereof. The processor 1701 can also be other devices with processing functions, such as circuits, devices or software modules, without limitation.

The communication bus 1702 is used to connect different components in the communication device 1700 so that different components can communicate. The communication bus 1702 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture. standard architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in Figure 17, but it does not mean that there is only one bus or one type of bus.

Communication interface 1704, used to communicate with other devices or communication networks. For example, the communication interface 1704 may be a module, a circuit, a transceiver, or any device capable of realizing communication. Optionally, the communication interface 1704 may also be an input/output interface located within the processor 1701 to implement signal input and signal output of the processor.

Memory 1703 may be a device with a storage function, used to store instructions and/or data. Wherein, the instructions may be computer programs.

Exemplarily, the memory 1703 may be a read-only memory (ROM) or other types of static storage devices that can store static information and/or instructions, or may be a random access memory (RAM). or other types of dynamic storage devices that can store information and/or instructions, and can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory, CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, etc., are not restricted.

It should be noted that the memory 1703 may exist independently of the processor 1701 or may be integrated with the processor 1701 . The memory 1703 may be located within the communication device 1700 or outside the communication device 1700, without limitation. The processor 1701 can be used to execute instructions stored in the memory 1703 to implement the methods provided by the following embodiments of the application.

As an optional implementation manner, the communication device 1700 may also include an output device 1705 and an input device 1706. Output device 1705 communicates with processor 1701 and can display information in a variety of ways. For example, the output device 1705 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector), etc. Input device 1706 communicates with processor 1701 and may receive user input in a variety of ways. For example, the input device 1706 may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

In some embodiments, in terms of hardware implementation, those skilled in the art can imagine that the communication device 150 shown in FIG. 15 may take the form of the communication device 1700 shown in FIG. 17 .

As an example, the function/implementation process of the processing module 1501 in Figure 15 can be implemented by the processor 1701 in the communication device 1700 shown in Figure 17 calling the computer execution instructions stored in the memory 1703. The function/implementation process of the transceiver module 1502 in Figure 15 can be implemented through the communication interface 1704 in the communication device 1700 shown in Figure 17 .

It should be noted that the structure shown in Figure 17 does not constitute a specific limitation on network equipment or terminal equipment. For example, in other embodiments of the present application, the network device or the terminal device may include more or less components than shown in the figures, or some components may be combined, or some components may be separated, or may be arranged differently. The components illustrated may be implemented in hardware, software, or a combination of software and hardware.

In some embodiments, embodiments of the present application further provide a communication device, which includes a processor and is configured to implement the method in any of the above method embodiments.

As a possible implementation manner, the communication device further includes a memory. This memory is used to store necessary computer programs and data. The computer program may include instructions, and the processor may call the instructions in the computer program stored in the memory to instruct the communication device to perform the method in any of the above method embodiments. Of course, the memory may not be in the communication device.

As another possible implementation, the communication device further includes an interface circuit, which is a code/data reading and writing interface circuit. The interface circuit is used to receive computer execution instructions (computer execution instructions are stored in the memory and may be directly read from memory, or possibly through other devices) and transferred to the processor.

As yet another possible implementation manner, the communication device further includes a communication interface, which is used to communicate with modules external to the communication device.

It can be understood that the communication device may be a chip or a chip system. When the communication device is a chip system, it may be composed of a chip or may include a chip and other discrete devices. This is not specifically limited in the embodiments of the present application.

This application also provides a computer-readable storage medium on which a computer program or instructions are stored. When the computer program or instructions are executed by a computer, the functions of any of the above method embodiments are realized.

This application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

Those of ordinary skill in the art can understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

It can be understood that the systems, devices and methods described in this application can also be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. Other In one point, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

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

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

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

Although the present application has been described herein in connection with various embodiments, in practicing the claimed application, those skilled in the art will understand and understand by reviewing the drawings, the disclosure, and the appended claims. Other variations of the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may perform several of the functions recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not mean that a combination of these measures cannot be combined to advantageous effects.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations may be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are intended to be merely illustrative of the application as defined by the appended claims and are to be construed to cover any and all modifications, variations, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (30)

1. A communication method, characterized in that the method includes:

   Receive first system information, the first system information is used to configure the tracking reference signal TRS;

   If the default paging cycle changes, it is determined that the configured TRS is unavailable.
2. The method according to claim 1, characterized in that before the default paging cycle changes, the method further includes:

   Receive a first availability indication, the first availability indication being used to indicate whether the configured TRS is available;

   If the default paging cycle changes, it is determined that the configured TRS is unavailable, including:

   If the default paging cycle changes within the first validity period corresponding to the first availability indication, it is determined that the configured TRS is unavailable within the remaining time of the first validity period.
3. The method of claim 2, further comprising:

   If the default paging cycle changes within the first validity period corresponding to the first availability indication, it is determined that the first validity period is invalid.
4. The method according to claim 3, wherein determining that the first validity period expires includes:

   Stop the timing of the first validity period; or stop the timer of the first validity period; or determine that the first validity period is over.
5. The method according to any one of claims 2 to 4, characterized in that the first validity period is determined based on the default paging cycle before change.
6. The method according to any one of claims 1 to 5, characterized in that, after the default paging cycle changes, the method further includes:

   receiving the second availability indication;

   Determining whether the configured TRS is available based on the second availability indication.
7. The method of claim 6, wherein the second availability indication is used to indicate whether the configured TRS is available;

   Determining whether the configured TRS is available according to the second availability indication includes:

   Determine whether the configured TRS is available within a second validity period corresponding to the second availability indication according to the second availability indication.
8. The method according to claim 7, characterized in that the second validity period is determined based on the changed default paging cycle.
9. A communication method, characterized in that the method includes:

   Receive a third availability indication, the third availability indication being used to indicate whether the configured tracking reference signal TRS is available;

   If the default paging cycle changes within the third validity period corresponding to the third availability indication, the third validity period remains unchanged. The third validity period is determined based on the default paging cycle before the change.
10. The method of claim 9, wherein keeping the third validity period unchanged includes:

    The availability of the configured TRS within the third validity period is maintained unchanged.
11. The method according to claim 9 or 10, characterized in that, the method further includes:

    Determine whether the configured TRS is available within the third validity period according to the third availability indication.
12. The method according to any one of claims 9 to 11, characterized in that the method further includes:

    Receive first system information, where the first system information is used to configure the TRS.
13. A communication method, characterized in that the method includes:

    Receive a fifth availability indication, the fifth availability indication being used to indicate whether the configured tracking reference signal TRS is available;

    If the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication, the sixth validity period corresponding to the fifth availability indication is determined based on the changed default paging cycle, and the fifth validity period is based on the change. Determined by the previous default paging cycle.
14. The method of claim 13, further comprising:

    It is determined according to the fifth availability indication whether the configured TRS is available within the sixth validity period.
15. The method according to claim 13 or 14, characterized in that the method further includes:

    Receive first system information, where the first system information is used to configure the TRS.
16. A communication method, characterized in that the method includes:

    Send first system information, the first system information is used to configure the tracking reference signal TRS for the terminal device;

    If the default paging cycle changes, it is determined that there is no need to send the configured TRS to the terminal device.
17. The method according to claim 16, characterized in that before the default paging cycle changes, the method further includes:

    Send a first availability indication, the first availability indication being used to indicate whether the configured TRS is available;

    If the default paging cycle changes, it is determined that there is no need to send the configured TRS to the terminal device, including:

    If the default paging cycle changes within the first validity period corresponding to the first availability indication, determine the remainder of the first validity period. There is no need to send the configured TRS to the terminal device within the time.
18. The method according to claim 17, characterized in that the first validity period is determined based on the default paging cycle before change.
19. The method according to any one of claims 16 to 18, characterized in that, after the default paging cycle changes, the method further includes:

    sending a second availability indication;

    Determining whether to send the configured TRS is based on the second availability indication.
20. The method of claim 19, wherein the second availability indication is used to indicate whether the configured TRS is available;

    Determining whether to send the configured TRS according to the second availability indication includes:

    It is determined according to the second availability indication whether to send the configured TRS within the second validity period corresponding to the second availability indication.
21. The method according to claim 20, characterized in that the second validity period is determined based on the changed default paging cycle.
22. A communication method, characterized in that the method includes:

    Send a third availability indication, the third availability indication being used to indicate whether the configured tracking reference signal TRS is available;

    If the default paging cycle changes within the third validity period corresponding to the third availability indication, the third validity period remains unchanged. The third validity period is determined based on the default paging cycle before the change.
23. The method of claim 22, wherein keeping the third validity period unchanged includes:

    The sending of the configured TRS within the third validity period remains unchanged.
24. The method according to claim 22 or 23, characterized in that the method further includes:

    Send first system information, where the first system information is used to configure the TRS.
25. A communication method, characterized in that the method includes:

    Send a fifth availability indication, the fifth availability indication being used to indicate whether the configured tracking reference signal TRS is available;

    If the default paging cycle changes within the fifth validity period corresponding to the fifth availability indication, the sixth validity period corresponding to the fifth availability indication is determined based on the changed default paging cycle, and the fifth validity period is based on the change. Determined by the previous default paging cycle.
26. The method of claim 25, further comprising:

    Among the TRSs that are sent the configuration within the sixth validity period, the TRSs are indicated as available by the fifth availability indication.
27. The method according to claim 25 or 26, characterized in that, the method further includes:

    Send first system information, where the first system information is used to configure the TRS.
28. A communication device, characterized in that the communication device includes a processor; the processor is used to run a computer program or instructions, so that the communication device performs the method according to any one of claims 1-15 , or, to cause the communication device to perform the method according to any one of claims 16-27.
29. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions or programs. When the computer instructions or programs are run on the computer, the method as claimed in any one of claims 1-15 is performed. Execute, or cause the method according to any one of claims 16 to 27 to be executed.
30. A computer program product, characterized in that the computer program product includes computer instructions; when part or all of the computer instructions are run on a computer, the method according to any one of claims 1-15 is executed, Or, the method according to any one of claims 16-27 is performed.