Reference signal availability indication method and device

Abstract

The present invention relates to the field of communication technology, and in particular to a reference signal availability indication method and device. The method comprises: determining the effective duration of the reference signal availability indication; upon receiving the reference signal availability indication, determining the availability of the reference signal within the effective time domain range according to the reference signal availability indication, wherein the effective time domain range is determined according to the effective duration. The embodiment of the present invention can determine the availability of the reference signal within the effective time domain range according to the effective duration and the reference signal availability indication.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a reference signal availability indication method and device. Background Art

[0002] Before receiving a paging message, an idle / inactive terminal device needs to obtain a reference signal to complete time-frequency synchronization, cell measurement, and Radio Resource Management (RRM) measurement. However, for a terminal device, the network device does not send a reference signal at every reference signal transmission opportunity. Therefore, the terminal device needs to determine the availability of the reference signal at the corresponding reference signal transmission opportunity according to the indication of the network device. However, the reference signal availability indication schemes proposed in the related art have certain limitations, so how to indicate the availability of the reference signal transmitted by the network device becomes a problem that needs to be solved. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a reference signal availability indication method and device, which can determine the availability of a reference signal within a valid time domain range according to the valid duration and the reference signal availability indication.

[0004] In a first aspect, an embodiment of the present invention provides a reference signal availability indication method, which is applied to a terminal device and includes: determining a valid duration of a reference signal availability indication; upon receiving the reference signal availability indication, determining the availability of a reference signal within a valid time domain range according to the reference signal availability indication, the valid time domain range being determined according to the valid duration.

[0005] Optionally, determining the valid duration of the reference signal availability indication includes: acquiring the valid duration of the reference signal availability indication according to a system broadcast message or a radio resource control (Radio Resource Control, RRC) signaling.

[0006] Optionally, the length of the effective duration is an integer multiple of the paging cycle.

[0007] Optionally, the validity period includes one or more combinations of the following information:

[0008] A reception period T1 of the reference signal availability indication;

[0009] The number of paging cycles M;

[0010] Timing duration T2.

[0011] Optionally, receiving the reference signal availability indication includes: determining a target resource location based on the effective duration; and receiving the reference signal availability indication at the target resource location.

[0012] Optionally, determining the target resource location based on the effective duration includes: calculating the target paging occasion (Paging Occasion, PO) based on the effective duration and paging parameters; the target PO is the target resource location; or, the first resource location where the paging early indication (Paging early indication, PEI) associated with the target PO is located is the target resource location.

[0013] Optionally, receiving the reference signal availability indication at the target resource location includes: when the target PO is the target resource location, receiving paging downlink control information at the target PO, and obtaining the reference signal availability indication from the paging downlink control information; when the first resource location where the PEI associated with the target PO is located is the target resource location, receiving the target PEI at the first resource location, and obtaining the reference signal availability indication from the target PEI.

[0014] Optionally, the valid time domain range is determined according to the valid duration, including: the valid time domain range takes the target resource position as the starting position and takes the valid duration as the time domain length.

[0015] Optionally, receiving the reference signal availability indication includes: calculating each paging opportunity PO according to the paging cycle and the paging parameter; receiving paging downlink control information at each of the POs until the received paging downlink control information includes the reference signal availability indication, and when the paging downlink control information includes the reference signal availability indication, triggering a timer to count;

[0016] Alternatively, determine the PEI position associated with each of the POs, receive the PEI at each PEI position until the received PEI includes the reference signal availability indication, and when the PEI includes the reference signal availability indication, trigger a timer.

[0017] Optionally, the timing duration of the timer is the effective duration, and the effective time domain range takes the triggering of the timer as the starting position and the effective duration as the time domain length.

[0018] Optionally, when the paging downlink control information includes the reference signal availability indication, each PO located after the valid time domain range is received to determine whether the paging downlink control information includes the reference signal availability indication;

[0019] When the PEI includes the reference signal availability indication, each PEI located after the valid time domain range is received to determine whether the PEI includes the reference signal availability indication.

[0020] Optionally, the availability of the reference signal within the valid time domain range is determined based on the reference signal availability indication, including: if the reference signal availability indication includes information that the reference signal is available, then all reference signals within the valid time domain range are available; if the reference signal availability indication includes information that the reference signal is unavailable, then all reference signals within the valid time domain range are unavailable.

[0021] In a second aspect, an embodiment of the present invention provides a reference signal availability indication method, which is applied to a network device, comprising: sending a valid duration of a reference signal availability indication to a terminal device; sending a reference signal availability indication to the terminal device, wherein the reference signal availability indication is used to indicate the availability of a reference signal within a valid time domain range, and the valid time domain range is determined according to the valid duration.

[0022] Optionally, the effective duration is carried in a system broadcast message or RRC signaling.

[0023] Optionally, the length of the effective duration is an integer multiple of the paging cycle.

[0024] Optionally, the validity period includes one or more combinations of the following information:

[0025] A reception period T1 of the reference signal availability indication;

[0026] The number of paging cycles M;

[0027] Timing duration T2.

[0028] Optionally, sending a reference signal availability indication to a terminal device includes: determining a target resource location based on the effective duration; and sending a reference signal availability indication at the target resource location.

[0029] Optionally, determining the target resource location based on the effective duration includes: calculating the target paging opportunity PO based on the effective duration and paging parameters; the target PO is the target resource location; or determining the first resource location where the PEI associated with the target PO is located, the first resource location being the target resource location.

[0030] Optionally, a reference signal availability indication is sent at the target resource location, including: when the target PO is the target resource location, carrying the reference signal availability indication in the paging downlink control information corresponding to the target PO; when the first resource location where the PEI associated with the target PO is located is the target resource location, carrying the reference signal availability indication in the target PEI corresponding to the first resource location.

[0031] Optionally, sending a reference signal availability indication to a terminal device includes: calculating each paging occasion PO based on a paging cycle and paging parameters; carrying the reference signal availability indication in the paging downlink control information corresponding to at least one of the POs; or, carrying the reference signal availability indication in the PEI associated with at least one of the POs.

[0032] Optionally, the reference signal availability indication is used to indicate the availability of a reference signal within a valid time domain range, including: if the reference signal availability indication includes information that a reference signal is available, then all reference signals within the valid time domain range are available; if the reference signal availability indication includes information that a reference signal is unavailable, then all reference signals within the valid time domain range are unavailable.

[0033] In a third aspect, an embodiment of the present invention provides a terminal device, comprising: at least one processor; and at least one memory communicatively connected to the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the method described in the first aspect or any possible embodiment of the first aspect.

[0034] In a fourth aspect, an embodiment of the present invention provides a network device, comprising: at least one processor; and at least one memory communicatively connected to the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the method described in the second aspect or any possible embodiment of the second aspect.

[0035] In the fifth aspect, an embodiment of the present invention provides a communication chip, comprising: a processor, which is used to execute computer program instructions stored in a memory, wherein, when the computer program instructions are executed by the processor, the communication chip is triggered to execute the method described in the first aspect, any possible embodiment of the first aspect, the second aspect, or any possible embodiment of the second aspect.

[0036] In the sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute a method as described in the first aspect, any possible embodiment of the first aspect, the second aspect, or any possible embodiment of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 is a schematic diagram of a scenario of a communication system provided by an embodiment of the present invention;

[0039] Figure 2 is a schematic diagram of a reference signal availability indication method provided in the related art;

[0040] Figure 3 is a schematic diagram of another reference signal availability indication method provided in the related art;

[0041] Figure 4 is a flow chart of a reference signal availability indication method provided by an embodiment of the present invention;

[0042] Figure 5-a and Figure 5-b is a schematic diagram of a reference signal availability indication method according to a first embodiment of the present invention;

[0043] Figure 6-a and Figure 6-b is a schematic diagram of a reference signal availability indication method according to a second embodiment of the present invention;

[0044] Figure 7-a and Figure 7-b is a schematic diagram of a reference signal availability indication method according to a third embodiment of the present invention;

[0045] Figure 8-a and Figure 8-b is a schematic diagram of a reference signal availability indication method according to a fourth embodiment of the present invention;

[0046] Fig. 9 is a flowchart of another reference signal availability indication method provided by an embodiment of the present invention;

[0047] Fig.10 A schematic diagram of the structure of a terminal device provided by an embodiment of the present invention;

[0048] Fig.11 It is a structural diagram of a network device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Figure 1 Schematic diagram of a communication system provided by an embodiment of the present invention. Figure 1 As shown, the communication system 100 may include at least one network device 101 and at least one terminal device 102, and the network device 101 and the terminal device 102, the terminal device 102 and the terminal device 102, and the network device 101 and the network device 101 are connected through wired or wireless communication technology. It should be noted that Figure 1 The number and form of the terminal devices 102 and network devices 101 shown do not constitute a limitation on the embodiments of the present application. In different embodiments, the network device 101 may also be connected to a core network device. Figure 1 Shown in.

[0051] It should be noted that the wireless communication systems mentioned in the embodiments of the present application include but are not limited to: Narrow Band-internet of Things (NB-IoT), Global System for Mobile Communications 100 (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (CDMA2000), Time Division-Synchronization Code Division Multiple Access (TDSCDMA), Long Term Evolution (LTE), fifth-generation mobile communication systems, vehicle-mounted wireless short-range communication systems, and future mobile communication systems.

[0052] In the embodiment of the present application, the above-mentioned network device 101 is a device deployed in a wireless access network to provide wireless communication functions for the terminal device 102. The network device 101 may include but is not limited to a base station (Base Station, BS), a station (Station, STA, including an access point (Access Point, AP) and a non-AP station STA), a network controller, a transmission and reception point (Transmission and Reception Point, TRP), a mobile switching center or a wireless access point in wifi, etc. For example, the device that directly communicates with the terminal device 102 through a wireless channel is usually a base station. The base station may include various forms of macro base stations, micro base stations, relay stations, access points or remote radio units (Remote Radio Unit, RRU), etc. Of course, other network devices 101 with wireless communication functions may also be used to communicate wirelessly with the terminal device 102, and this application does not make a sole limitation on this.

[0053] The terminal device 102 may include, for example, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., which is a device that provides voice and / or data communication to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, a wearable device, a computing device or other processing device linked to a wireless modem. At present, some examples of terminals are: mobile phones, tablet computers, laptops, PDAs, mobile Internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control (Industrial Control), wireless terminals in self-driving (Self Driving), wireless terminals in remote medical surgery (Remote Medical Surgery), wireless terminals in smart grids (Smart Grid), wireless terminals in transportation safety (Transportation Safety), wireless terminals in smart cities (Smart City), wireless terminals in smart homes (Smart Home), etc. Of course, the names of the devices may be different in different systems, and they will not be listed here one by one.

[0054] exist Figure 1In the communication system shown, before receiving a paging message, a terminal device in an idle / inactive state needs to use the reference signal transmitted by the network device to complete time-frequency synchronization, cell measurement, and RRM measurement, including when monitoring the physical downlink control channel (PDCCH) and the corresponding physical downlink shared channel (PDSCH). However, for the terminal device, the network device does not send a reference signal at every reference signal transmission opportunity. The terminal device needs to determine the availability of the reference signal at the reference signal transmission opportunity according to the indication of the network device. In the related art, the way in which the network device indicates the availability of the reference signal includes:

[0055] Method 1: Figure 2 As shown, a paging early indication (PEI) is used to indicate whether a reference signal in the current paging cycle of the terminal device is available and / or whether a reference signal in the next paging cycle is available. Figure 3 The Paging Downlink Control Information (PagingDCI) is used to indicate whether the reference signal in the next paging cycle is available. The reference signal described in Method 1 and Method 2 may be, for example, a Channel State Information-Reference Signal (CSI-RS) or a Tracking Reference Signal (TRS). Figure 2 and Figure 3 TRS is taken as an example.

[0056] In method 1, it is considered that a PEI is usually associated with multiple paging occasions (POs). When a PEI is associated with multiple POs, the terminal device often does not need to listen to the PEI before each PO. If the UE does not receive the PEI before a certain PO, the terminal device cannot obtain the availability indication of the reference signal from the PEI. Therefore, how to indicate the availability of the reference signal through the PEI becomes a problem that needs to be solved.

[0057] In method 2, Paging DCI needs to be obtained by monitoring PDCCH in PO, and whether to monitor PDCCH in PO needs to be determined based on PEI. Since PEI is likely to indicate that PO associated with it is not monitored, it is difficult to effectively obtain the availability indication of the reference signal using method 2. It can be seen that how to obtain the availability indication of the reference signal through Paging DCI is also a problem that needs to be solved.

[0058] In view of the fact that the methods for obtaining reference signal availability indication provided in the related art all have certain drawbacks, an embodiment of the present invention provides a reference signal availability indication scheme. In an embodiment of the present invention, a network device sends a reference signal availability indication and a valid duration of the reference signal availability indication to a terminal device. The terminal device can determine the availability of the reference signal within the valid time domain range based on the valid duration and the reference signal availability indication. The reference signal availability indication method of an embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0059] Figure 4 FIG. 1 is a flow chart of a reference signal availability indication method provided by an embodiment of the present invention. Figure 4 As shown, the processing steps of the method include:

[0060] 201. The terminal device determines the effective duration of the reference signal availability indication. Optionally, the effective duration may be carried in a system broadcast message or RRC signaling. The terminal device receives the system broadcast message or RRC signaling sent by the network device to obtain the effective duration of the reference signal availability indication from the system broadcast message or RRC signaling.

[0061] Optionally, the effective duration is an integer multiple of the paging cycle. In some embodiments, the effective duration includes a combination of one or more of the following information: a reception period T1 of the reference signal availability indication, a number M of paging cycles, and a timing duration T2.

[0062] In some embodiments, the effective duration may be the receiving period T1 of the reference signal availability indication. Optionally, the receiving period may also be represented by the number of paging cycles M. That is, for a terminal device, the terminal device may receive a reference signal availability indication once every period T1 or every M paging cycles. In some embodiments, the effective duration may be a timing duration T2. ​​Optionally, the timing duration may also be represented by the number of paging cycles M. Optionally, when the terminal device obtains the reference signal availability indication, a timer may be started, and the timing duration of the timer is T2 or M paging cycles. When the timing duration is exceeded, the terminal device needs to receive PEI or Paging DCI again to obtain the reference signal availability indication.

[0063] 202. When receiving the reference signal availability indication, the terminal device determines availability of the reference signal within a valid time domain range according to the reference signal availability indication. The valid time domain range may be determined according to the valid duration.

[0064] In some embodiments, the effective duration is expressed as the reception period T1 of the reference signal availability indication. At this time, the effective time domain range starts with the resource position carrying the reference signal availability indication and takes the period T1 as the time domain length. In some embodiments, the effective duration is expressed as the timing duration T2. ​​When the terminal device detects the reference signal availability indication, the terminal device triggers the timer, and the timing duration of the timer is T2. Accordingly, the effective time domain range starts with the time domain position where the reference signal availability indication is detected and takes the timing duration T2 as the time domain length.

[0065] The terminal device determines the availability of the reference signal within the valid time domain range based on the reference signal availability indication, including: if the reference signal availability indication includes information that the reference signal is available, then all reference signals within the valid time domain range are available; if the reference signal availability indication includes information that the reference signal is unavailable, then all reference signals within the valid time domain range are unavailable.

[0066] In some embodiments, the reference signal availability indication is carried in Paging DCI or PEI. The terminal device obtains the reference signal availability indication by receiving Paging DCI or PEI. In some embodiments, after the terminal device obtains the valid duration of the reference signal availability indication, the terminal device can calculate the target resource location according to the valid duration. The terminal device can receive the reference signal availability indication at the target resource location. Optionally, the terminal device calculates the target resource location according to the valid duration, including: the terminal device calculates the target PO according to the valid duration and the paging parameters. The first resource location where the calculated target PO or the PEI associated with the target PO is located is the target resource location.

[0067] Among them, when the target PO is the target resource location, the terminal device receives the paging downlink control information at the target PO and obtains the reference signal availability indication from the paging downlink control information. When the first resource location where the PEI associated with the target PO is located is the target resource location, the terminal device receives the target PEI at the first resource location and obtains the reference signal availability indication from the target PEI.

[0068] In a specific embodiment 1, the terminal device obtains the reference signal availability indication from the Paging DCI. Specifically, the network device configures the receiving period T1 of the reference signal availability indication for the user equipment through a system broadcast message or RRC. The terminal device calculates the target PO for receiving the reference signal availability indication based on the paging parameters and the period T1. Optionally, T1 is M times the paging period. Optionally, the network device may also configure the parameter M for the user equipment through a system broadcast message or RRC. The terminal device determines the paging period T1 according to the parameter M, T1=M*paging period. The terminal device calculates the target PO according to the paging parameters and the period T1, including:

[0069] The terminal device calculates the paging frame PF according to the following formula, that is, determines the system frame number (SFN) where the target PO is located;

[0070] (SFN+PF_offset)mod T1=(T1 div N)*(UE_ID mod N).

[0071] Afterwards, the terminal device determines the index (PO index) of the target PO in the PF according to the parameter i_s;

[0072] i_s=floor(UE_ID / N)mod Ns.

[0073] PF_offset: used in existing protocols to determine the start time interval of PF, that is, the frame number at which PF starts;

[0074] N: the number of PFs in the Paging period in the existing protocol;

[0075] UE_ID:5G-S-TMSI mod 1024;, where 5G-S-TMSI stands for 5G-Serving -Temporary Mobile Subscriber Identity in English and 5G-Serving -Temporary Mobile Subscriber Identity in Chinese.

[0076] i_s: the index of the target PO in PF;

[0077] T1: reception period of reference signal availability indication;

[0078] Ns: the number of POs included in a PF. The POs here are determined according to the paging cycle. Multiple POs may be included between two adjacent target POs.

[0079] like Figure 5-aAs shown in FIG. 1 , when the Paging DCI corresponding to the target PO indicates that the reference signal is available, all reference signals (such as TRS) in the time domain range starting from the target PO and with the period T1 as the time domain length are available. Figure 5-b As shown, when the Paging DCI corresponding to the target PO indicates that the reference signal is unavailable, all reference signals (such as TRS) within the time domain range starting from the target PO and with the period T1 as the time domain length are unavailable.

[0080] Optionally, for the calculated target PO, the terminal device does not need to determine whether to monitor the target PO to obtain the Paging DCI based on its associated PEI. Figure 5-a and 5-b As shown, the target PO is the PO that the terminal device must monitor, and the PEI associated with the target PO (shown by the dotted line) does not need to be monitored. For POs other than the target PO, the terminal device needs to determine whether to receive Paging DCI at the PO based on the PEI.

[0081] In a specific embodiment 2, the terminal device obtains a reference signal availability indication from the PEI. Specifically, the network device configures the receiving period T1 of the reference signal availability indication for the user equipment through a system broadcast message or RRC. The terminal device calculates the target PO for receiving the reference signal availability indication based on the paging parameters and the period T1. The method for calculating the target PO by the terminal device is described in Embodiment 1 and will not be repeated here.

[0082] Afterwards, the terminal device determines the first resource location where the PEI associated with the target PO is located according to the target PO. The terminal device receives the target PEI from the first resource location and obtains a reference signal availability indication from the target PEI.

[0083] like Figure 6-a As shown, when the target PEI received at the first resource position indicates that the reference signal is available, the reference signal (such as TRS) corresponding to the PO in the current period T1 is available. Figure 6-b As shown, when the target PEI received at the first resource position indicates that the reference signal is unavailable, the reference signal (such as TRS) corresponding to the PO in the current period T1 is unavailable.

[0084] In addition to obtaining the reference signal availability indication at the target PO or the PEI associated with the target PO, the terminal device can also monitor the PO one by one or the PEI one by one to obtain the reference signal availability indication, and start the timer after obtaining the reference signal availability indication. Specifically: the terminal device can calculate each PO according to the paging cycle and paging parameters. The PO here is calculated according to a single paging cycle. The target PO above is calculated according to the cycle T1. The POs here are different from the target POs. The terminal device receives the Paging DCI at each PO until the received Paging DCI includes the reference signal availability indication, and when the Paging DCI includes the reference signal availability indication, the timer is triggered. Alternatively, after calculating each PO, the terminal device determines the PEI position associated with each PO, and receives the PEI at each PEI position until the received PEI includes the reference signal availability indication. When the received PEI includes the reference signal availability indication, the timer is triggered. Optionally, the timing duration of the above-mentioned timer is the effective duration, and accordingly, the effective time domain range takes the triggering of the timer as the starting position and the effective duration as the time domain length.

[0085] Optionally, for a PO within the timer timing range, the terminal device determines whether to monitor the PO based on the PEI associated with the PO. For each PO beyond the timer timing range, the terminal device performs reception to determine whether the corresponding Paging DCI includes a reference signal availability indication, and triggers the timer once the reference signal availability indication is detected in the Paging DCI. Alternatively, for each PEI beyond the timer timing range, the terminal device performs reception detection to determine whether the PEI includes a reference signal availability indication, and triggers the timer once the reference signal availability indication is detected in the PEI.

[0086] In a specific embodiment 3, the terminal device obtains the reference signal availability indication from the PagingDCI. Specifically, the network device configures the timing duration T2 of the timer for the user equipment through a system broadcast message or RRC. Figure 7-a and 7-b As shown, T2 is 3 paging cycles. The terminal device calculates the location of the PO according to the paging cycle, and then receives Paging DCI from the PO one by one until the Paging DCI includes the reference signal availability indication. The terminal device triggers the timer, and the timing duration is T2. During the timer operation, the terminal device determines whether to monitor the PO according to the indication of PEI; for the PO after the timer expires, it is required to monitor by default, and it is not necessary to determine whether to monitor according to PEI. Optional, such as Figure 7-aAs shown in FIG. 1 , if PagingDCI indicates that the reference signal is available, the reference signal (such as TRS) during the timer operation is available. Figure 7-b As shown, if the Paging DCI indicates that the reference signal is unavailable, then all reference signals (such as TRS) during the timer operation are unavailable.

[0087] In a specific embodiment 4, the terminal device obtains the reference signal availability indication from the PEI. Specifically, the network device configures the timing duration T2 of the timer for the user equipment through a system broadcast message or RRC. Figure 8-a and 8-b As shown in FIG. 1 , T2 is 3 paging cycles. The terminal device calculates the location of the PO according to the paging cycle, and then determines the location of each PEI according to the location of the PO. The terminal device receives PEIs one by one until the PEI includes a reference signal availability indication. When the received PEI includes a reference signal availability indication, the terminal device triggers a timer for T2. The terminal device may not receive the PEI during the timer, such as Figure 8-a and 8-b As shown by the dotted line PEI in the figure; the PEI after the timer expires needs to be received by default. Figure 8-a As shown in FIG. 1 , if PEI indicates that the reference signal is available, the reference signal (such as TRS) during the timer operation is available. Figure 8-b As shown, if PEI indicates that the reference signal is unavailable, then all reference signals (such as TRS) during the timer operation are unavailable.

[0088] Fig. 9 is a flow chart of another reference signal availability indication method provided by an embodiment of the present invention. The method is applied to a network device, such as Fig. 9 As shown, including:

[0089] 301, the network device sends the valid duration of the reference signal availability indication to the terminal device. The valid duration is carried in the system broadcast message or RRC signaling. Optionally, the length of the valid duration is an integer multiple of the paging cycle. Specifically, the valid duration includes a combination of one or more of the following information: the receiving period T1 of the reference signal availability indication, the number of paging cycles M, and the timing duration T2.

[0090] 302. The network device sends a reference signal availability indication to the terminal device, where the reference signal availability indication is used to indicate the availability of a reference signal within a valid time domain range, and the valid time domain range is determined according to the valid duration.

[0091] In some embodiments, the network device sends a reference signal availability indication to the terminal device, including: determining a target resource location according to the effective duration; and sending the reference signal availability indication at the target resource location.

[0092] Among them, the network device determines the target resource location according to the effective duration, including: calculating the target paging opportunity PO according to the effective duration and paging parameters; the target PO is the target resource location; or, determining the first resource location where the PEI associated with the target PO is located, and the first resource location is the target resource location.

[0093] In some embodiments, the network device sends a reference signal availability indication at the target resource location, including: when the target PO is the target resource location, carrying the reference signal availability indication in the paging downlink control information corresponding to the target PO;

[0094] When the first resource location where the PEI associated with the target PO is located is the target resource location, the reference signal availability indication is carried in the target PEI corresponding to the first resource location.

[0095] In some embodiments, a network device sends a reference signal availability indication to a terminal device, including: calculating each paging occasion PO based on a paging cycle and paging parameters; carrying the reference signal availability indication in paging downlink control information corresponding to at least one PO among each of the POs; or, carrying the reference signal availability indication in a PEI associated with at least one PO among each of the POs.

[0096] In some embodiments, the reference signal availability indication is used to indicate the availability of a reference signal within a valid time domain range, including: if the reference signal availability indication includes information that a reference signal is available, then all reference signals within the valid time domain range are available; if the reference signal availability indication includes information that a reference signal is unavailable, then all reference signals within the valid time domain range are unavailable.

[0097] In an embodiment of the present invention, the reference signal availability indication method executed by the network device corresponds to the steps executed by the terminal device. For relevant specific contents, please refer to the description on the terminal device side, which will not be repeated here.

[0098] Fig.10 A schematic diagram of the structure of a terminal device provided by an embodiment of the present invention. Fig.10A simplified schematic diagram of a possible design structure of a terminal device involved in the above method embodiment is shown in FIG. The terminal device includes a transceiver 401, a processor 402, a memory 403 and a modem 404, and the transceiver 401, the processor 402, the memory 403 and the modem 404 are connected via a bus.

[0099] The transceiver 401 adjusts (e.g., analog conversion, filtering, amplification, up-conversion, etc.) the output sample and generates an uplink signal, which is transmitted to the network device in the above embodiment via the antenna. In the downlink, the antenna receives the downlink signal from the network device in the above embodiment. The transceiver 401 adjusts (e.g., filters, amplifies, down-converts, and digitizes, etc.) the signal received from the antenna and provides input samples. Exemplarily, in the modulation processor 404, the encoder 4041 receives the service data and signaling message to be sent on the uplink, and processes the service data and signaling message (e.g., formatting, encoding, and interleaving). The modulator 4042 further processes (e.g., symbol mapping and modulation) the encoded service data and signaling message and provides the above output samples. The demodulator 4043 processes (e.g., demodulates) the above input samples and provides symbol estimates. The decoder 4044 processes (e.g., deinterleaves and decodes) the symbol estimate and provides decoded data and signaling messages sent to the terminal device. The encoder 4041, modulator 4042, demodulator 4043, and decoder 4044 may be implemented by the synthesized modem 404. These units perform processing according to the wireless access technology (e.g., access technology of LTE, 5G, and other evolved systems) adopted by the wireless access network. Fig. 9 In the illustrated embodiment, the transceiver 401 is integrated with a transmitter and a receiver. In other embodiments, the transmitter and the receiver may also be independent of each other.

[0100] The processor 402 controls and manages the terminal device to execute the steps of the processing performed by the terminal device in the above method embodiment. For example, it is used to control the terminal device to perform the reference signal availability indication method and / or other processes of the technology described in this application. As an example, the processor 402 is used to support the terminal device to perform Figure 2 - Figure 8 and the processing process involving the terminal device. In different embodiments, the processor 402 may include one or more processors, for example, one or more CPUs, and the processor 402 may be integrated into a chip, or may be the chip itself.

[0101] The memory 403 is used to store relevant instructions and data, as well as the program code and data of the terminal. In different embodiments, the memory 403 includes but is not limited to a random access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), an erasable programmable read-only memory (Erasable Programmable ReadOnly Memory, EPROM), a non-transitory computer readable storage medium (non-transitory computerreadable storage medium) or a portable read-only memory (Compact Disc Read-Only Memory, CDROM). In this embodiment, the memory 403 is independent of the processor 402. In other embodiments, the memory 403 can also be integrated in the processor 402.

[0102] Understandably, Fig.10 Only a simplified design of the terminal device is shown. In different embodiments, the terminal device may include any number of transmitters, receivers, processors, memories, etc., and all terminal devices that can implement the present application are within the protection scope of the present application.

[0103] Fig.11 1 is a schematic diagram of the structure of a network device provided by an embodiment of the present invention. Fig.11 A simplified schematic diagram of a possible design structure of the network device involved in the above method embodiment is shown in FIG. The network device includes a transceiver 501, a processor 502, a memory 503 and a modem 504, and the transceiver 501, the processor 502, the memory 503 and the modem 504 are connected via a bus.

[0104] The transceiver 501 adjusts (e.g., analog conversion, filtering, amplification, up-conversion, etc.) the output sampling and generates a downlink signal, which is transmitted to the terminal device in the above embodiment via an antenna. In the uplink, the antenna receives the uplink signal from the terminal device in the above embodiment. The transceiver 501 adjusts (e.g., filters, amplifies, down-converts, and digitizes, etc.) the signal received from the antenna and provides input sampling. Exemplarily, in the modulation processor 504, the encoder 5041 receives the service data and signaling message to be sent on the downlink, and processes the service data and signaling message (e.g., formatting, encoding, and interleaving). The modulator 5042 further processes (e.g., symbol mapping and modulation) the encoded service data and signaling message and provides the above output sampling. The demodulator 5043 processes (e.g., demodulates) the above input sampling and provides symbol estimation. The decoder 5044 processes (e.g., deinterleaves and decodes) the symbol estimation and provides decoded data and signaling messages sent to the network device. The encoder 5041, modulator 5042, demodulator 5043, and decoder 5044 may be implemented by the synthesized modem 504. These units perform processing according to the radio access technology (e.g., access technology of LTE, 5G, and other evolved systems) adopted by the radio access network. Fig.11 In the illustrated embodiment, the transceiver 501 is integrated with a transmitter and a receiver. In other embodiments, the transmitter and the receiver may be independent of each other.

[0105] The processor 502 controls and manages the network device to execute the steps of the processing performed by the network device in the above method embodiment. For example, it is used to control the network device to perform the reference signal availability indication method and / or other processes of the technology described in this application. As an example, the processor 502 is used to support the network device to perform Figure 2-Figure 9 In different embodiments, the processor 502 may include one or more processors, such as one or more CPUs. The processor 502 may be integrated into a chip, or may be the chip itself.

[0106] The memory 503 is used to store relevant instructions and data, as well as the program code and data of the terminal. In different embodiments, the memory 503 includes but is not limited to a random access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), an erasable programmable read-only memory (Erasable Programmable ReadOnly Memory, EPROM), a non-transitory computer readable storage medium (non-transitory computerreadable storage medium) or a portable read-only memory (Compact Disc Read-Only Memory, CDROM). In this embodiment, the memory 503 is independent of the processor 502. In other embodiments, the memory 503 can also be integrated in the processor 502.

[0107] Understandably, Fig.11 Only a simplified design of the network device is shown. In different embodiments, the network device may include any number of transmitters, receivers, processors, memories, etc., and all network devices that can implement the present application are within the protection scope of the present application.

[0108] Corresponding to the above-mentioned device embodiment, the embodiment of the present invention further provides a communication system, which includes Fig.10 The terminal equipment and Fig.11 The network devices shown.

[0109] In a specific implementation, the present application further provides a computer storage medium, wherein the computer storage medium may store a program, and when the program is executed, the program may include some or all of the steps in each embodiment provided in the present application. The storage medium may be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM).

[0110] In a specific implementation, an embodiment of the present application further provides a computer program product, which includes executable instructions. When the executable instructions are executed on a computer, the computer executes some or all of the steps in the above method embodiment.

[0111] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0112] Those skilled in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0113] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0114] In several embodiments provided by the present invention, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0115] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A reference signal availability indication method, characterized in that: The method is applied to a terminal device, comprising: determining a validity period of the reference signal availability indication; When receiving the reference signal availability indication, determining, according to the reference signal availability indication, availability of a reference signal within a valid time domain range, where the valid time domain range is determined according to the valid duration; Receiving the reference signal availability indication includes: Calculate the target paging opportunity PO according to the effective duration and paging parameters; The target PO is the target resource location; or, the first resource location where the PEI associated with the target PO is located is the target resource location; The reference signal availability indication is received at the target resource location.

2. The method according to claim 1, characterized in that Determine the validity period of the reference signal availability indication, including: The effective duration of the reference signal availability indication is acquired according to a system broadcast message or a radio resource control RRC signaling.

3. The method according to claim 1, characterized in that The length of the effective duration is an integer multiple of the paging cycle.

4. The method according to claim 3, characterized in that The effective duration includes one or more combinations of the following information: A reception period T1 of the reference signal availability indication; The number of paging cycles M; Timing duration T2.

5. The method according to claim 1, characterized in that Receiving the reference signal availability indication at the target resource location includes: When the target PO is the target resource location, receiving paging downlink control information at the target PO, and acquiring the reference signal availability indication from the paging downlink control information; When the first resource location where the PEI associated with the target PO is located is the target resource location, the target PEI is received at the first resource location, and the reference signal availability indication is acquired from the target PEI.

6. The method according to claim 1, characterized in that The effective time domain range is determined according to the effective duration, including: The effective time domain range takes the target resource position as a starting position and the effective time length as a time domain length.

7. The method according to any one of claims 1 to 4, characterized in that: Receiving the reference signal availability indication includes: Calculate each paging opportunity PO according to the paging cycle and paging parameters; receiving paging downlink control information at each PO until the received paging downlink control information includes the reference signal availability indication, and when the paging downlink control information includes the reference signal availability indication, triggering a timer to count; Alternatively, determine the PEI position associated with each of the POs, receive the PEI at each PEI position until the received PEI includes the reference signal availability indication, and when the PEI includes the reference signal availability indication, trigger a timer.

8. The method according to claim 7, characterized in that The timing duration of the timer is the effective duration, and the effective time domain range takes the triggering of the timer as the starting position and the effective duration as the time domain length.

9. The method according to claim 7, characterized in that: When the paging downlink control information includes the reference signal availability indication, each PO located after the valid time domain range is received to determine whether the paging downlink control information includes the reference signal availability indication; When the PEI includes the reference signal availability indication, each PEI located after the valid time domain range is received to determine whether the PEI includes the reference signal availability indication.

10. The method according to claim 1, characterized in that Determining availability of a reference signal within a valid time domain range according to the reference signal availability indication includes: If the reference signal availability indication includes information that a reference signal is available, then all reference signals within the valid time domain range are available; If the reference signal availability indication includes information that a reference signal is unavailable, then all reference signals within the valid time domain range are unavailable.

11. A reference signal availability indication method, characterized in that: The method is applied to a network device, comprising: The validity period of sending the reference signal availability indication to the terminal device; Sending the reference signal availability indication to the terminal device, where the reference signal availability indication is used to indicate the availability of a reference signal within a valid time domain range, where the valid time domain range is determined according to the valid duration; Sending the reference signal availability indication to the terminal device includes: Calculate the target paging opportunity PO according to the effective duration and paging parameters; The target PO is a target resource location; or, a first resource location where the PEI associated with the target PO is located is determined, and the first resource location is the target resource location; The reference signal availability indication is sent at the target resource location.

12. The method according to claim 11, characterized in that The effective duration is carried in a system broadcast message or RRC signaling.

13. The method according to claim 11, characterized in that The length of the effective duration is an integer multiple of the paging cycle.

14. The method according to claim 13, characterized in that The effective duration includes one or more combinations of the following information: A reception period T1 of the reference signal availability indication; The number of paging cycles M; Timing duration T2.

15. The method according to claim 11, characterized in that Sending the reference signal availability indication at the target resource location includes: When the target PO is the target resource location, the reference signal availability indication is carried in the paging downlink control information corresponding to the target PO; When the first resource location where the PEI associated with the target PO is located is the target resource location, the reference signal availability indication is carried in the target PEI corresponding to the first resource location.

16. The method according to any one of claims 11 to 14, characterized in that Sending the reference signal availability indication to the terminal device includes: Calculate each paging opportunity PO according to the paging cycle and paging parameters; The reference signal availability indication is carried in the paging downlink control information corresponding to at least one PO among each of the POs; or, the reference signal availability indication is carried in the PEI associated with at least one PO among each of the POs.

17. The method according to claim 11, characterized in that The reference signal availability indication is used to indicate the availability of a reference signal within a valid time domain range, including: If the reference signal availability indication includes information that a reference signal is available, then all reference signals within the valid time domain range are available; If the reference signal availability indication includes information that a reference signal is unavailable, then all reference signals within the valid time domain range are unavailable.

18. A terminal device, characterized in that: include: at least one processor; as well as at least one memory in communication with the processor, wherein: The memory stores program instructions executable by the processor, and the processor can execute the method according to any one of claims 1 to 10 by calling the program instructions.

19. A network device, characterized in that: include: at least one processor; as well as at least one memory in communication with the processor, wherein: The memory stores program instructions executable by the processor, and the processor can execute the method according to any one of claims 11 to 17 by calling the program instructions.

20. A communication chip, characterized in that: include: A processor, which is used to execute computer program instructions stored in a memory, wherein, when the computer program instructions are executed by the processor, the communication chip is triggered to execute the method as described in any one of claims 1 to 10 or any one of claims 11 to 17.

21. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method according to any one of claims 1 to 10 or any one of claims 11 to 17.

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