Method for receiving power saving signal, method for transmitting power saving signal, and related device

Abstract

This disclosure provides a method for receiving a power saving signal, a method for transmitting a power saving signal, and a related device. The method includes: in a case that a beam failure is detected, transmitting (501) a random access request; and after the random access request is transmitted and before a transmission control indication TCI state is updated, performing (502) detection for a first power saving signal in a recovery search space based on a first quasi co-location QCL relationship, where the first power saving signal may be used to determine whether to wake up in OnDuration and the first QCL relationship is a QCL relationship of beam failure recovery reference signals BFR-RS.

Description

Energy-saving signal receiving method, energy-saving signal transmitting method and related equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 201910906938.2, filed in China on September 24, 2019, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of communication technology, and in particular to an energy-saving signal receiving method, an energy-saving signal transmitting method, and related equipment. Background Technology

[0004] In the connected state, based on the service characteristics of the User Equipment (UE) (also known as the terminal equipment), discontinuous reception (DRX), or connected mode DRX (C-DRX), can be configured for the UE to reduce power consumption. Currently, before the activation time (OnDuration) of each DRX, the UE can determine whether to wake up the OnDuration by receiving a power-saving signal or a wake-up signal (WUS). When the OnDuration is woken up, the UE listens for scheduling information on the control channel and then transmits or receives data. When the OnDuration is in sleep mode, the UE does not listen for scheduling information on the control channel and then transmits or receives data. Therefore, it is crucial that the transmission and reception of the power-saving signal are understood consistently by both the network and UE sides.

[0005] However, in related technologies, when the quality of the beam signal used for energy-saving signal transmission is poor, the reception performance of the energy-saving signal is often poor, which can easily lead to inconsistencies in the understanding of energy-saving signal transmission and reception between the network side and the UE side.

[0006] Summary of the Invention

[0007] This disclosure provides an energy-saving signal receiving method, an energy-saving signal transmitting method, and related equipment to solve the problem of poor energy-saving signal receiving performance when the beam signal quality is poor.

[0008] To solve the above-mentioned technical problems, this disclosure is implemented as follows:

[0009] In a first aspect, embodiments of this disclosure provide an energy-saving signal receiving method, applied to a terminal device, the method comprising:

[0010] If a beam failure is detected, a random access request is sent;

[0011] After sending the random access request and before the Transmission Control Indicator (TCI) status is updated, the energy-saving signal is detected in the recovery search space based on the first quasi-co-address QCL relationship; wherein, the first QCL relationship is the QCL relationship of the Beam Failure Recovery Reference Signal (BFR-RS).

[0012] Secondly, this disclosure also provides an energy-saving signal transmission method, applied to a network-side device, the method comprising:

[0013] Upon receiving a random access request on a random access opportunity, a power-saving signal is sent over the recovery search space;

[0014] The random access opportunity and the beam failure recovery reference signal (BFR-RS) have a QCL relationship, and the energy-saving signal and the BFR-RS have a QCL relationship.

[0015] Thirdly, embodiments of this disclosure also provide a terminal device. The terminal device includes:

[0016] The first transmitting module is used to send a random access request in the event of a detected beam failure;

[0017] The first detection module is used to detect energy-saving signals in the recovery search space based on a first quasi-co-address QCL relationship after sending the random access request and before the Transmission Control Indicator (TCI) status is updated; wherein, the first QCL relationship is the QCL relationship of the Beam Failure Recovery Reference Signal (BFR-RS).

[0018] Fourthly, embodiments of this disclosure also provide a network-side device. The network-side device includes:

[0019] The first sending module is used to send an energy-saving signal in the recovery search space when a random access request is received on a random access opportunity.

[0020] The random access opportunity and the beam failure recovery reference signal (BFR-RS) have a QCL relationship, and the energy-saving signal and the BFR-RS have a QCL relationship.

[0021] Fifthly, embodiments of this disclosure also provide a terminal device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the energy-saving signal receiving method provided in the first aspect.

[0022] In a sixth aspect, embodiments of this disclosure also provide a network-side device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the energy-saving signal transmission method provided in the second aspect above.

[0023] In a seventh aspect, embodiments of this disclosure also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the energy-saving signal receiving method provided in the first aspect, or the steps of the energy-saving signal transmitting method provided in the second aspect.

[0024] In this embodiment of the disclosure, upon detecting a beam failure, a random access request is sent. After sending the random access request and before the Transmission Control Indicator (TCI) state update, a power-saving signal is detected in the recovery search space based on the QCL relationship of the BFR-RS. By transmitting the power-saving signal during the beam failure recovery process, the reception performance of the power-saving signal can be improved when the beam signal quality is poor, thereby improving the consistency of understanding of the power-saving signal transmission and reception on the network side and the UE side. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1a is one of the schematic diagrams of beam failure recovery provided in the embodiments of this disclosure;

[0027] Figure 1b is a second schematic diagram of beam failure recovery provided in an embodiment of this disclosure;

[0028] Figure 1c is a third schematic diagram of beam failure recovery provided in an embodiment of this disclosure;

[0029] Figure 2 is a schematic diagram of WUS signal transmission provided in an embodiment of this disclosure;

[0030] Figure 3 is a schematic diagram of the control resource set and search space provided in an embodiment of this disclosure;

[0031] Figure 4 is a structural diagram of a network system that can be applied to an embodiment of this disclosure;

[0032] Figure 5 is a flowchart of the energy-saving signal receiving method provided in an embodiment of this disclosure;

[0033] Figure 6a is one of the schematic diagrams of WUS based on BFR process transmission provided in the embodiments of this disclosure;

[0034] Figure 6b is a second schematic diagram of WUS based on BFR process transmission provided in an embodiment of this disclosure;

[0035] Figure 6c is a third schematic diagram of WUS based on BFR process transmission provided in the embodiments of this disclosure;

[0036] Figure 6d is a fourth schematic diagram of WUS based on BFR process transmission provided in the embodiments of this disclosure;

[0037] Figure 6e is the fifth schematic diagram of WUS based on BFR process transmission provided in the embodiments of this disclosure;

[0038] Figure 6f is a schematic diagram of WUS based on BFR process transmission provided in the embodiments of this disclosure;

[0039] Figure 7 is a flowchart of the energy-saving signal transmission method provided in an embodiment of this disclosure;

[0040] Figure 8 is a structural diagram of the terminal device provided in an embodiment of this disclosure;

[0041] Figure 9 is a structural diagram of the network-side device provided in an embodiment of this disclosure;

[0042] Figure 10 is a structural diagram of a terminal device provided in yet another embodiment of this disclosure;

[0043] Figure 11 is a structural diagram of a network-side device provided in another embodiment of this disclosure. Detailed Implementation

[0044] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0045] The terms “first,” “second,” etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein may be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, the use of “and / or” in the specification and claims indicates at least one of the connected objects, such as A and / or B and / or C, indicating seven possibilities: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and A, B, and C present.

[0046] For ease of understanding, the following describes some aspects related to the embodiments of this disclosure:

[0047] Transmission Configuration Indication (TCI) status:

[0048] In downlink applications with multiple beams, such as millimeter wave, the network configures a set of TCI states (i.e., a set of beam information) when configuring the Control Resource Set (CORESET). Then, it activates one of these TCI states through the MAC Control Element (CE) or Downlink Control Information (DCI). The Power Saving Signal (or WUS) CORESET can be configured with a maximum of three, meaning a maximum of three active TCI states. However, to reduce signaling and UE detection overhead, the network may limit the number of active TCI states, perhaps activating only one or two.

[0049] Beam Failure Recovery (BFR) technology:

[0050] According to the New Radio (NR) protocol in Release 15 (R15), no more than two Reference Signal (RS) resources are available for BFR (Band Failure). The UE utilizes the RS resources of BFR for beam-level radio link quality monitoring. When the link quality remains below a certain threshold, the UE's physical layer reports a beam failure to the Media Access Control (MAC) layer. The MAC layer starts a timer, beamFailureDetectionTimer, which is restarted with each beam failure report. Additionally, each beam failure report increments the value of the BFI_COUNTER register by 1. If the timer expires, the beam failure reporting register BFI_COUNTER is cleared. If the register value exceeds beamFailureInstanceMaxCount, the UE considers the beam failure detected (Beam Failure Detected, BFD) and initiates the beam recovery procedure.

[0051] In the beam recovery procedure, the UE needs to send a Random Access Request (RACH) to notify the network that a beam switch has occurred and to start the FailureRecovery timer and the RA response timer. The UE then performs a beam search in the search space (SS) configured by the network for beam failure recovery to obtain further response information from the network. This response information can be the Cell Radio Network Temporary Identity (C-RNTI), as shown in Figure 1a. If the UE does not receive the C-RNTI after the RA response timer expires, the UE can increase its power and resend the RACH, as shown in Figure 1b. If the UE receives the C-RNTI, it stops the FailureRecovery timer. If the UE still does not receive a response after the FailureRecovery timer expires, the UE stops sending the RACH and waits for the Radio Link Monitor (RLM) to trigger a radio link failure, as shown in Figure 1c.

[0052] When DRX is present, according to the R15 protocol definition, the UE may not perform beam failure monitoring and beam recovery RACH uploading during the inactive time. The UE can perform beam failure monitoring and beam recovery RACH uploading only during the DRX onDuration (Active Time). Additionally, it should be noted that the network response information mentioned above is carried by C-RNTI, but this C-RNTI can be received outside of Active Time, meaning it is not restricted by Active Time; it must simply be received within the RA response time window (i.e., before the RA response timer expires).

[0053] The role of the BFR (Broadcast Reception Framework) is to maintain the beam information for the UE to receive the PDCCH. If the network does not configure BFD-RS (Broadcast Difference-Reception System), the UE uses the Transmission Configuration Indication (TCI) status of all currently configured Control Resource Sets (CORESETs) to determine the current set of BFD-RSs. The TCI status indication is, in fact, a quasi-co-location (QCL) indication. This quasi-co-location relationship indicates that two signals are quasi-co-located; that is, two signals transmitted from the same set of ports can be assumed to have some identical parameters upon reception. Therefore, the TCI status of all UE CORESETs needs to have a QCL relationship with at least one of the configured BFD-RSs. However, from a general network implementation logic perspective, it can be assumed that the network needs to use the BFR to maintain the active beam. For example, as shown in Figure 2, WUS (Wireless Usage System) only transmits on the beam corresponding to the BFD-RS.

[0054] CORESET and SS (SearchSpace) configurations in NR R15:

[0055] In NR, a CORESET is defined, which is a set of time-frequency resources used to carry control information. This configuration determines the pattern of time-frequency resources within each time slot. For a CORESET, a QCL relationship can be configured to indicate the beam used by the network when transmitting this CORESET.

[0056] Furthermore, for each UE, a series of SSs can be configured. Each SS has a corresponding CORESET, with independently configured periodicity, slot offset, and symbol offset, as shown in Figure 3. A CORESET can have multiple SSs.

[0057] Referring to Figure 4, which is a structural diagram of a network system applicable to an embodiment of this disclosure, the system includes a terminal device 11 and a network-side device 12. The terminal device 11 can be a user-side device such as a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), or wearable device. It should be noted that the specific type of the terminal device 11 is not limited in this embodiment. The network-side device 12 can be a base station, such as a macro base station, LTE eNB, 5G NR NB, gNB, etc.; the network-side device 12 can also be a small cell, such as a low-power node (LPN) pico, femto, etc., or an access point (AP); the base station can also be a network node composed of a central unit (CU) and multiple TRPs that it manages and controls. It should be noted that the specific type of the network-side device 12 is not limited in this embodiment.

[0058] The terminal device 11 can be used to execute the energy-saving signal receiving method provided in the embodiments of this disclosure, and the network-side device 12 can be used to execute the energy-saving signal transmitting method provided in the embodiments of this disclosure.

[0059] This disclosure provides an energy-saving signal receiving method applied to a terminal device. Referring to Figure 5, which is a flowchart of the energy-saving signal receiving method provided in this disclosure, the method includes the following steps:

[0060] Step 501: If a beam failure is detected, send a random access request.

[0061] In this embodiment, a beam failure recovery (BFR) procedure can be initiated before receiving the energy-saving signal, in the event of a detected beam failure, to perform beam switching. That is, the UE can send a random access request (RACH) to perform beam failure recovery upon detecting a beam failure.

[0062] Step 502: After sending the random access request and before the Transmission Control Indicator (TCI) status update, detect the power-saving signal in the recovery search space based on the first quasi-co-located QCL relationship; wherein, the first QCL relationship is the QCL relationship of the Beam Failure Recovery Reference Signal (BFR-RS), or the QCL relationship of the CORESET corresponding to the recovery search space.

[0063] In this embodiment, the aforementioned recovery search space can refer to the search space used for beam failure recovery. The aforementioned BFR-RS can refer to the reference signal used for beam failure recovery. The aforementioned first QCL relationship can be the QCL relationship between the power-saving signal and the BFR-RS. For example, the network-side equipment can pre-configure the BFR-RS, which, after being identified by the UE as an RS that can be used for beam recovery, automatically becomes the QCL relationship used when detecting the power-saving signal. That is, when the UE detects the power-saving signal, it assumes that the power-saving signal and the BFR-RS have a QCL relationship, for example, the same UE can be used to receive the beam for detection.

[0064] It should be noted that when the BFR-RS is automatically identified by the UE as an RS that can be used for beam recovery and becomes the QCL relationship used when detecting power-saving signals, the network-side equipment can transmit power-saving signals in the recovery search space. In this case, the actual transmitted power-saving signal has a QCL relationship with the BFR-RS. Alternatively, the power-saving signal can not be transmitted in the recovery search space. In this case, the actual transmitted power-saving signal does not have a QCL relationship with the BFR-RS.

[0065] In this step, after sending the random access request and before the TCI state update, the UE can expect the network-side device to send a power-saving signal with a QCL relationship with the BFR-RS in the recovery search space. Therefore, the UE can detect the power-saving signal in the recovery search space based on the QCL relationship of the BFR-RS.

[0066] For example, referring to Figures 6a and 6b, in the event of a beam failure (i.e., Beam Failure Detected), RACH transmission is triggered, and C-RNTI is detected within the RA response time window (i.e., the RA-Response time window). Specifically, the UE can detect WUS based on BFR-RS QCL relationships in the recovery search space within the RA response time window before C-RNTI detection, as shown in Figure 6a; or it can detect WUS based on BFR-RS QCL relationships in the recovery search space outside the RA response time window after C-RNTI detection, as shown in Figure 6b.

[0067] It should be noted that in this embodiment, the energy-saving signal can be used only to determine whether the wake-up activation time (i.e., OnDuration) has been completed; it can also be used only to determine whether beam recovery has been completed; or it can be used both to determine whether the beam recovery has been completed and to determine whether the wake-up activation time (i.e., OnDuration) has been completed.

[0068] The energy-saving signal receiving method provided in this disclosure sends a random access request when a beam failure is detected. After sending the random access request and before the Transmission Control Indicator (TCI) state is updated, the energy-saving signal is detected in the recovery search space based on the QCL relationship of the BFR-RS. By transmitting the energy-saving signal during the beam failure recovery process, the reception performance of the energy-saving signal can be improved when the beam signal quality is poor, thereby improving the consistency of understanding of the transmission and reception of the energy-saving signal on the network side and the UE side.

[0069] Optionally, the method may further include:

[0070] After sending the random access request and before updating the TCI state, energy-saving signals are detected in the first search space based on the second QCL relationship;

[0071] Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship configured on the control resource set CORESET corresponding to the first search space.

[0072] In this embodiment, the first search space can be any search space for energy-saving signal transmission that is different from the recovery search space.

[0073] In practical applications, after sending the random access request and before the TCI state update, the UE can detect energy-saving signals based on the QCL relationship of BFR-RS in the recovery search space, and can also detect energy-saving signals based on the original configuration information for energy-saving signal transmission (e.g., CORESET, search space, QCL relationship, etc.). The original configuration information for energy-saving signal transmission can include the configuration information for energy-saving signal transmission when no beam failure occurs, such as the configuration information for energy-saving signal transmission in related technologies.

[0074] In this embodiment, after sending the random access request and before the TCI state update, energy-saving signals can be detected not only in the recovery search space but also in the first search space, which can further improve the reception performance of energy-saving signals.

[0075] Optionally, the detection of energy-saving signals in the recovery search space based on the first quasi-co-address QCL relationship may include:

[0076] Starting from the second moment, energy-saving signals are detected in the recovery search space based on the first QCL relationship;

[0077] Wherein, the second time is at least a first preset time interval later than the first time, and the first time is the time when the random access request is sent.

[0078] In this embodiment, the first preset time interval can be a preset duration, such as X1 milliseconds; or a preset number of time slots, such as X2 time slots. The values ​​of X1 and X2 can be configured by the network side or predefined by the protocol. For example, the protocol can predefine X1 as 1, 2, 3, or 4, and X2 can predefine X2 as 1, 2, 3, or 4.

[0079] In practice, since the network response to random access typically takes some time, energy-saving signals can be detected in the recovery search space starting from a preset time interval after the random access request is sent. This reduces invalid detections and saves system resources. Correspondingly, the energy-saving signal reception time should be at least a preset time interval later than the random access request transmission time.

[0080] This embodiment can reduce some invalid detections and save system resources by detecting energy-saving signals in the recovery search space based on the first QCL relationship starting from the second time point.

[0081] Optionally, the method may further include:

[0082] If an energy-saving signal is detected from the recovery search space, at least one of resetting the value of the beam failure counter and stopping the failure recovery timer is executed.

[0083] In this embodiment, when an energy-saving signal is detected from the recovery search space, the value of the beam failure counter (i.e., BFI_COUNTER) can be cleared to zero, and / or the failure recovery timer (i.e., FailureRecovery timer) can be stopped, without having to continue detecting C-RNTI to determine that beam recovery is complete, thus saving resources.

[0084] For example, referring to Figure 6c, if WUS is detected from the recovery search space within the RA response time window, the value of BFI_COUNTER can be cleared to zero and the FailureRecovery timer can be stopped, without further detection of C-RNTI.

[0085] Optionally, in this embodiment, after sending a random access request, C-RNTI can be detected within the RA response time window. If C-RNTI is detected before an energy-saving signal is detected from the recovery search space, beam recovery can be determined based on C-RNTI, that is, the value of BFI_COUNTER is cleared to zero, and / or the FailureRecovery timer is stopped.

[0086] It should be noted that in this embodiment, the energy-saving signal can be used only to determine that beam recovery is complete; or it can be used to determine both that beam recovery is complete and that the wake-up activation time (i.e., OnDuration) has been activated.

[0087] Optionally, the method may further include:

[0088] After sending the random access request, the wake-up activation time is OnDuration.

[0089] In this embodiment, the OnDuration can be woken up after a random access request is initiated due to beam failure. That is, the OnDuration is woken up regardless of whether a power-saving signal is detected. This allows the OnDuration to be woken up based on the random access request, maintaining consistency in the UE's and network's understanding of the OnDuration's state. It should be noted that waking up the OnDuration described above can be understood as waking up the OnDuration at the upcoming OnDuration opportunity defined by the DRX cycle.

[0090] In this embodiment, the UE may not assume that the network will not issue a power-saving signal to instruct the UE to sleep after the random access request is sent, or the network will issue a power-saving signal and instruct the UE to sleep in the power-saving signal.

[0091] It should be noted that, in this embodiment, the aforementioned energy-saving signal can be used to determine that beam recovery is complete.

[0092] Optionally, the method may further include at least one of the following:

[0093] Upon detecting an energy-saving signal, send the first feedback message;

[0094] If no energy-saving signal is detected, a second feedback message is sent.

[0095] In this embodiment, the first feedback information and the second feedback information can be any different feedback information. For example, the first feedback information can be ACK information, and the second feedback information can be NACK information.

[0096] This embodiment sends a first feedback message to the network-side device when a power-saving signal is detected, and a second feedback message to the network-side device when no power-saving signal is detected. This allows the network-side device to know the UE's reception status of the power-saving signal, thereby improving the consistency of understanding between the network side and the UE side regarding the transmission and reception of the power-saving signal.

[0097] Optionally, the method may further include:

[0098] If no power-saving signal is detected, the activation time OnDuration is activated and random access requests continue to be sent.

[0099] In this embodiment, the above-mentioned failure to detect energy-saving signal can be understood as the UE not detecting energy-saving signal in the recovery search space when it only detects energy-saving signal in the recovery search space.

[0100] Optionally, the UE may not assume that the network will not send a power-saving signal to instruct the UE to sleep after the random access request is sent. Therefore, if the UE does not receive a power-saving signal, it may assume that the power-saving signal was missed or that the RACH network is not receiving it normally. In this case, the UE can automatically wake up the OnDuration and continue to send RACH to the network-side equipment. Here, the aforementioned OnDuration can refer to the OnDuration targeted by the power-saving signal detection. For example, if the power-saving signal is detected before the first OnDuration, that is, the OnDuration targeted by the power-saving signal detection is the first OnDuration, then the first OnDuration can be woken up even if the power-saving signal is not detected.

[0101] For example, as shown in Figure 6d, if no WUS is detected before a certain OnDuration, the UE automatically wakes up the OnDuration and continues to send RACH until it receives C-RNTI.

[0102] It should be noted that the above-mentioned wake-up OnDuration can be understood as waking up OnDuration on the upcoming OnDuration opportunity defined by the DRX cycle.

[0103] Optionally, the method may further include:

[0104] When the OnDuration is woken up, control signals are listened for on the OnDuration.

[0105] In this embodiment, when the OnDuration is woken up, in addition to continuing to send random access requests, control signals can also be listened to on the woken OnDuration. For example, the UE can listen to control signals based on existing configuration information for control signal listening (e.g., CORESET, SearchSpace, etc.). This existing configuration information can include configuration information for control signal listening when beam failure does not occur, such as configuration information for control signal listening in related technologies. It should be noted that the control signals mentioned above can include energy-saving signals.

[0106] In this embodiment, when the OnDuration is woken up, in addition to continuing to send random access requests, control signals can also be listened to on the woken OnDuration. This can improve the reception performance of control signals while ensuring that the switch to a beam with better signal quality is guaranteed.

[0107] Optionally, the method may further include:

[0108] If the TCI state is not updated and the detected energy-saving signal indicates hibernation, continue to detect energy-saving signals in the recovery search space based on the first QCL relationship.

[0109] In this embodiment, if the TCI state is not updated and the detected energy-saving signal indicates hibernation, the Onduration corresponding to the currently detected energy-saving signal is hibernated, and the corresponding energy-saving signal is detected in the recovery search space based on the first QCL relationship before the next Onduration.

[0110] For example, as shown in Figure 6e, if a power-saving signal detected before a certain Onduration indicates that the Onduration should be put into sleep mode, the Onduration should be put into sleep mode, and the power-saving signal should continue to be detected in the recovery search space based on the first QCL relationship before the next Onduration, and so on, until the TCI state is updated.

[0111] Based on the solution provided in this embodiment, the network-side device can avoid immediately waking up the UE when there is no service demand and the RACH reception performance corresponding to the BFR-RS used for beam recovery is better. Instead, it can wake up the UE when there is service demand and perform TCI state update while transmitting services. This avoids scheduling dedicated to TCI state update and reduces the time the UE is in Onduration, thereby reducing network overhead and UE power consumption.

[0112] Optionally, the method may further include:

[0113] If the TCI state is not updated and the detected energy-saving signal indicates sleep mode, continue to send random access requests.

[0114] In this embodiment, if the TCI state is not updated and the detected energy-saving signal indicates sleep mode, a random access request can continue to be sent to notify the network side that the beam needs to be restored as soon as possible, as shown in Figure 6f. The network-side device can determine the link quality of the UE corresponding to the BFR-RS beam based on the RACH reception quality, and then decide whether to perform beam restoration immediately.

[0115] This disclosure provides an energy-saving signal transmission method applied to a network-side device. Referring to Figure 7, which is a flowchart of the energy-saving signal transmission method provided in this disclosure, the method includes the following steps:

[0116] Step 701: If a random access request is received on a random access opportunity, an energy-saving signal is sent on the recovery search space;

[0117] The random access opportunity and the beam failure recovery reference signal (BFR-RS) have a QCL relationship, and the energy-saving signal and the BFR-RS have a QCL relationship.

[0118] In this embodiment, the network-side device can send a power-saving signal with a QCL relationship to the BFR-RS in the recovery search space when it receives a random access request for beam failure recovery, that is, when it receives a random access opportunity with a QCL relationship to the BFR-RS. This allows the terminal device to detect the power-saving signal in the recovery search space based on the QCL relationship between the BFR-RS and the power-saving signal.

[0119] This embodiment improves the reception performance of energy-saving signals in cases of poor beam signal quality by sending energy-saving signals in the recovery search space when a random access request is received on a random access opportunity. This, in turn, improves the consistency of understanding of energy-saving signal transmission and reception on the network side and the UE side.

[0120] Optionally, the method may further include:

[0121] Energy-saving signals are sent in the first search space based on the second QCL relationship;

[0122] Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship of the reference signal corresponding to the first search space.

[0123] In this embodiment, the first search space can be any search space for energy-saving signal transmission that is different from the recovery search space.

[0124] Optionally, in practical applications, when a network-side device receives a random access request on a random access opportunity, it can not only send an energy-saving signal on the recovery search space, but also send an energy-saving signal based on the original configuration information for energy-saving signal transmission (e.g., CORESET, search space, QCL relationship, etc.). The aforementioned original configuration information for energy-saving signal transmission may include configuration information for energy-saving signal transmission when no beam failure occurs, such as the configuration information for energy-saving signal transmission in related technologies.

[0125] In this embodiment, when a random access request is received on a random access opportunity, the energy-saving signal can be sent not only in the recovery search space but also in the first search space, which can further improve the reception performance of the energy-saving signal.

[0126] Optionally, sending an energy-saving signal over the recovery search space may include:

[0127] Starting from the third moment, energy-saving signals are sent over the recovery search space;

[0128] The third time point is at least a second preset time interval later than the fourth time point, and the fourth time point is the time when the random access request is received.

[0129] In this embodiment, the time of receiving the random access request can refer to the time when the physical layer on the network side receives the random access request, which can be equivalent to the time of sending the random access request. The second preset time interval can be a preset duration, for example, X1 milliseconds; or it can be a preset number of time slots, for example, X2 time slots. The values ​​of X1 and X2 can be configured by the network side or predefined by the protocol. For example, X1 can be predefined by the protocol as 1, 2, 3, or 4, and X2 can be predefined by the protocol as 1, 2, 3, or 4.

[0130] In practice, after a terminal device receives a random access request, it usually needs to parse the received random access request, and parsing usually takes a certain amount of time. Therefore, in this embodiment, energy-saving signals can be sent in the recovery search space starting from the second preset time interval after the time of receiving the random access request.

[0131] Optionally, the energy-saving signal is used to indicate the wake-up activation time OnDuration.

[0132] In this embodiment, the power-saving signal sent by the network-side device to the terminal device is used to indicate wake-up onDuration. That is, the UE does not believe that the power-saving signal sent by the network side after the random access request is sent will indicate sleep mode.

[0133] Optionally, the method may further include the following:

[0134] Receive first feedback information, wherein the first feedback information is used to indicate that the terminal device has received an energy-saving signal;

[0135] Receive second feedback information, wherein the second feedback information is used to indicate that the terminal device has not received an energy-saving signal.

[0136] In this embodiment, the first feedback information and the second feedback information can be any different feedback information. For example, the first feedback information can be ACK information, and the second feedback information can be NACK information.

[0137] This embodiment receives first feedback information from the terminal device to indicate that the terminal device has received the energy-saving signal, or receives second feedback information from the terminal device to indicate that the terminal device has not received the energy-saving signal. This facilitates the network-side device to know the UE's reception status of the energy-saving signal, thereby improving the consistency of the network side and the UE side's understanding of the transmission and reception of the energy-saving signal.

[0138] The embodiments of this disclosure are described below with reference to examples:

[0139] Referring to Figures 6a to 6e, the UE's MAC layer can determine that if a beam failure is detected, it will trigger the transmission of RACH, and after the RACH is transmitted, it will detect C-RNTI within the RA response time window, i.e. before the RA response timer expires.

[0140] Optionally, if the WUS (i.e., the energy-saving signal mentioned above) is within the RA response time window, or if the UE has detected the C-RNTI but has not yet received the TCI status update, the UE can detect the WUS using the QCL relationship of the BFR-RS in the RecoverySearchSpace, as shown in Figures 6a and 6b. In this case, the UE can determine that beam recovery is complete upon receiving the C-RNTI, i.e., stop the FailureRecovery timer.

[0141] Optionally, the UE can also detect WUS based on existing configuration information used for energy-saving signal transmission (e.g., CORESET, Searchspace, and QCL relationships).

[0142] Optionally, the aforementioned RA response time window can be initiated after RACH sends X1 milliseconds or X1 time slots. X1 or X2 can be values ​​defined by the protocol, for example, X1 is 4 and X2 is 4.

[0143] Optionally, if the WUS occurs within the RA response time window and the UE receives the WUS, beam recovery can be considered complete, meaning BFI_COUNTER is set to 0 and the FailureRecovery timer is stopped. In this case, if a WUS detection opportunity exists within the RA response time window, the network does not need to send a C-RNTI as a response after sending the WUS.

[0144] Optionally, the WUS mentioned above can be a Physical Downlink Shared Channel (PDCCH) message that requires ACK / NACK feedback. For example, the WUS mentioned above can be a Downlink control information (DCI) message that requires ACK / NACK feedback.

[0145] Optionally, the UE assumes that the network will definitely send a WUS after the RACH is sent, and will not instruct the UE to sleep by not sending a WUS. Therefore, if the UE does not receive a WUS, the UE considers that a WUS was missed, or that the RACH was not received normally by the network. In this case, the UE will automatically enter Active Time in the OnDuration of the next DRX cycle (i.e., the DRX period) and listen for control signals during Active Time. In addition, the UE can send a RACH after each RA response timer expires, as shown in Figure 6d.

[0146] Optionally, if the UE assumes that the WUS issued by the network side indicates that the UE is in sleep mode and that the TCI status has not been updated, the UE can still detect WUS on the RecoverySearchSpace based on the QCL relationship of BFR-RS before waking up on the next DRX OnDuration, as shown in Figure 6e.

[0147] Optionally, in the case of WUS indicating sleep, the UE can send RACH again before the next WUS arrives to prompt the network to update the beam information, as shown in Figure 6f.

[0148] Additionally, the protocol can predefine that if the UE has an opportunity to receive WUS after sending RACH but before the TCI state update, the UE will assume that this WUS will not instruct the UE to sleep.

[0149] In summary, the embodiments of this disclosure utilize the BFR process to transmit WUS, which, while ensuring the receiving performance of WUS, can reduce the configuration of the CORESET and QCL relationships of WUS and reduce network overhead.

[0150] Referring to Figure 8, which is a structural diagram of a terminal device provided in an embodiment of this disclosure. As shown in Figure 8, the terminal device 800 includes:

[0151] The first transmitting module 801 is used to send a random access request when a beam failure is detected;

[0152] The first detection module 802 is used to detect energy-saving signals in the recovery search space based on the first quasi-co-address QCL relationship after sending the random access request and before the transmission control indication (TCI) status is updated; wherein, the first QCL relationship is the QCL relationship of the beam failure recovery reference signal (BFR-RS).

[0153] Optionally, the terminal device further includes:

[0154] The second detection module is used to detect energy-saving signals in the first search space based on the second QCL relationship after sending the random access request and before the TCI state update.

[0155] Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship configured on the control resource set CORESET corresponding to the first search space.

[0156] Optionally, the first detection module is specifically used for:

[0157] Starting from the second moment, energy-saving signals are detected in the recovery search space based on the first QCL relationship;

[0158] Wherein, the second time is at least a first preset time interval later than the first time, and the first time is the time when the random access request is sent.

[0159] Optionally, the terminal device further includes:

[0160] An execution module is configured to, upon detecting an energy-saving signal from the recovery search space, execute at least one of resetting the value of the beam failure counter to zero and stopping the failure recovery timer.

[0161] Optionally, the terminal device further includes:

[0162] The first wake-up module is used to activate the OnDuration time after the random access request is sent.

[0163] Optionally, the terminal device further includes a second transmitting module, used for at least one of the following:

[0164] Upon detecting an energy-saving signal, send the first feedback message;

[0165] If no energy-saving signal is detected, a second feedback message is sent.

[0166] Optionally, the terminal device further includes:

[0167] The second wake-up module is used to wake up the activation time OnDuration and continue sending random access requests if no energy-saving signal is detected.

[0168] Optionally, the terminal device further includes:

[0169] A listening module is used to listen for control signals on the OnDuration when the OnDuration is woken up.

[0170] Optionally, the terminal device further includes:

[0171] If the TCI state is not updated and the detected energy-saving signal indicates hibernation, continue to detect energy-saving signals in the recovery search space based on the first QCL relationship.

[0172] Optionally, the terminal device further includes:

[0173] The third sending module is used to continue sending random access requests when the TCI state is not updated and the detected energy-saving signal indicates sleep mode.

[0174] The terminal device 800 provided in this embodiment can implement the various processes implemented by the terminal device in the above method embodiments. To avoid repetition, it will not be described again here.

[0175] The terminal device 800 of this embodiment includes a first transmitting module 801, configured to transmit a random access request upon detecting a beam failure; and a first detection module 802, configured to detect a power-saving signal in the recovery search space based on a first quasi-co-address QCL relationship after transmitting the random access request and before updating the Transmission Control Indicator (TCI) state; wherein the first QCL relationship is the QCL relationship of the Beam Failure Recovery Reference Signal (BFR-RS). By transmitting the power-saving signal during the beam failure recovery process, the reception performance of the power-saving signal can be improved when the beam signal quality is poor, thereby improving the consistency of understanding of the transmission and reception of the power-saving signal on the network side and the UE side.

[0176] Referring to Figure 9, which is a structural diagram of a network-side device provided in an embodiment of this disclosure, the network-side device 900 includes:

[0177] The first transmitting module 901 is used to transmit an energy-saving signal in the recovery search space when a random access request is received on a random access opportunity.

[0178] The random access opportunity and the beam failure recovery reference signal (BFR-RS) have a QCL relationship, and the energy-saving signal and the BFR-RS have a QCL relationship.

[0179] Optionally, the network-side device further includes:

[0180] The second transmitting module is used to transmit energy-saving signals in the first search space based on the second QCL relationship;

[0181] Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship configured on the control resource set CORESET corresponding to the first search space.

[0182] Optionally, the first sending module is specifically used for:

[0183] Starting from the third moment, energy-saving signals are sent over the recovery search space;

[0184] The third time point is at least a second preset time interval later than the fourth time point, and the fourth time point is the time when the random access request is received.

[0185] Optionally, the energy-saving signal is used to indicate the wake-up activation time OnDuration.

[0186] Optionally, the network-side device further includes a receiving module for one of the following:

[0187] Receive first feedback information, wherein the first feedback information is used to indicate that the terminal device has received an energy-saving signal;

[0188] Receive second feedback information, wherein the second feedback information is used to indicate that the terminal device has not received an energy-saving signal.

[0189] The network-side device 900 provided in this embodiment can implement the various processes implemented by the network-side device in the above method embodiment. To avoid repetition, it will not be described again here.

[0190] The network-side device 900 of this disclosure includes a first transmitting module 901, configured to transmit a power-saving signal in the recovery search space upon receiving a random access request on a random access opportunity; wherein the random access opportunity has a QCL relationship with the beam failure recovery reference signal (BFR-RS), and the power-saving signal has a QCL relationship with the BFR-RS. By transmitting the power-saving signal during the beam failure recovery process, the reception performance of the power-saving signal can be improved when the beam signal quality is poor, thereby improving the consistency of understanding of the power-saving signal transmission and reception on the network side and the UE side.

[0191] Figure 10 is a structural diagram of another terminal device provided in an embodiment of this disclosure. Referring to Figure 10, the terminal device 1000 includes, but is not limited to, components such as: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, and a power supply 1011. Those skilled in the art will understand that the terminal device structure shown in Figure 10 does not constitute a limitation on the terminal device. The terminal device may include more or fewer components than shown, or combine certain components, or have different component arrangements. In the embodiments of this disclosure, the terminal device includes, but is not limited to, mobile phones, tablet computers, laptop computers, PDAs, vehicle terminals, wearable devices, and pedometers.

[0192] The radio frequency unit 1001 is used to send a random access request when a beam failure is detected; the processor 1010 is used to detect a power-saving signal in the recovery search space based on a first quasi-co-address QCL relationship after sending the random access request and before the transmission control indication (TCI) state is updated; wherein the first QCL relationship is the QCL relationship of the beam failure recovery reference signal (BFR-RS).

[0193] The embodiments disclosed herein improve the reception performance of energy-saving signals when beam signal quality is poor by transmitting energy-saving signals during beam failure recovery procedures, thereby improving the consistency of understanding of energy-saving signal transmission and reception on the network side and the UE side.

[0194] Optionally, the processor 1010 is further configured to:

[0195] After sending the random access request and before updating the TCI state, energy-saving signals are detected in the first search space based on the second QCL relationship;

[0196] Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship configured on the control resource set CORESET corresponding to the first search space.

[0197] Optionally, the processor 1010 is further configured to:

[0198] Starting from the second moment, energy-saving signals are detected in the recovery search space based on the first QCL relationship;

[0199] Wherein, the second time is at least a first preset time interval later than the first time, and the first time is the time when the random access request is sent.

[0200] Optionally, the processor 1010 is further configured to:

[0201] If an energy-saving signal is detected from the recovery search space, at least one of resetting the value of the beam failure counter and stopping the failure recovery timer is executed.

[0202] Optionally, the processor 1010 is further configured to:

[0203] After sending the random access request, the wake-up activation time is OnDuration.

[0204] Optionally, the processor 1010 is further configured to perform at least one of the following:

[0205] Upon detecting an energy-saving signal, send the first feedback message;

[0206] If no energy-saving signal is detected, a second feedback message is sent.

[0207] Optionally, the processor 1010 is further configured to:

[0208] If no power-saving signal is detected, the activation time OnDuration is activated and random access requests continue to be sent.

[0209] Optionally, the processor 1010 is further configured to:

[0210] When the OnDuration is woken up, control signals are listened for on the OnDuration.

[0211] Optionally, the processor 1010 is further configured to:

[0212] If the TCI state is not updated and the detected energy-saving signal indicates hibernation, continue to detect energy-saving signals in the recovery search space based on the first QCL relationship.

[0213] Optionally, the processor 1010 is further configured to:

[0214] If the TCI state is not updated and the detected energy-saving signal indicates sleep mode, continue to send random access requests.

[0215] It should be understood that in this embodiment, the radio frequency unit 1001 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink data from the base station and processes it with the processor 1010; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. Furthermore, the radio frequency unit 1001 can also communicate with networks and other devices through a wireless communication system.

[0216] The terminal device provides users with wireless broadband internet access through the network module 1002, such as helping users send and receive emails, browse web pages, and access streaming media.

[0217] The audio output unit 1003 can convert audio data received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into audio signals and output them as sound. Furthermore, the audio output unit 1003 can also provide audio output related to specific functions performed by the terminal device 1000 (e.g., call signal reception sound, message reception sound, etc.). The audio output unit 1003 includes a speaker, a buzzer, and a receiver, etc.

[0218] Input unit 1004 is used to receive audio or video signals. Input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042. GPU 10041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on display unit 1006. The image frames processed by GPU 10041 can be stored in memory 1009 (or other storage medium) or transmitted via radio frequency unit 1001 or network module 1002. Microphone 10042 can receive sound and process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via radio frequency unit 1001 in telephone call mode.

[0219] The terminal device 1000 also includes at least one sensor 1005, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 10061 according to the ambient light level, and the proximity sensor can turn off the display panel 10061 and / or backlight when the terminal device 1000 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes). When stationary, it can detect the magnitude and direction of gravity and can be used to identify the terminal device's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. The sensor 1005 may also include a fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc., which will not be described in detail here.

[0220] The display unit 1006 is used to display information input by the user or information provided to the user. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0221] User input unit 1007 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the terminal device. Specifically, user input unit 1007 includes touch panel 10071 and other input devices 10072. Touch panel 10071, also known as a touch screen, can collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 10071). Touch panel 10071 may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to processor 1010, which receives and executes commands from processor 1010. In addition, touch panel 10071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 10071, the user input unit 1007 may also include other input devices 10072. Specifically, other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, joysticks, etc., which will not be described in detail here.

[0222] Furthermore, the touch panel 10071 can cover the display panel 10061. When the touch panel 10071 detects a touch operation on or near it, it transmits the information to the processor 1010 to determine the type of touch event. Subsequently, the processor 1010 provides corresponding visual output on the display panel 10061 according to the type of touch event. Although in Figure 10, the touch panel 10071 and the display panel 10061 are shown as two separate components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 10071 and the display panel 10061 can be integrated to implement the input and output functions of the terminal device. Specific details are not limited here.

[0223] Interface unit 1008 serves as an interface for connecting external devices to terminal device 1000. For example, external devices may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 1008 can be used to receive input from external devices (e.g., data, power, etc.) and transmit the received input to one or more components within terminal device 1000, or it can be used to transmit data between terminal device 1000 and external devices.

[0224] The memory 1009 can be used to store software programs and various data. The memory 1009 may primarily include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 1009 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0225] The processor 1010 is the control center of the terminal device. It connects various parts of the terminal device via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 1009, and by calling data stored in the memory 1009, it performs various functions and processes data of the terminal device, thereby providing overall monitoring of the terminal device. The processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 1010.

[0226] The terminal device 1000 may also include a power supply 1011 (such as a battery) that supplies power to various components. Optionally, the power supply 1011 may be logically connected to the processor 1010 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0227] In addition, the terminal device 1000 includes some functional modules not shown, which will not be described in detail here.

[0228] Optionally, this disclosure also provides a terminal device, including a processor 1010, a memory 1009, and a computer program stored in the memory 1009 and executable on the processor 1010. When the computer program is executed by the processor 1010, it implements the various processes of the above-described energy-saving signal receiving method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0229] Referring to Figure 11, which is a structural diagram of a network-side device provided in another embodiment of the present disclosure, the network-side device 1100 includes a processor 1101, a memory 1102, a bus interface 1103, and a transceiver 1104, wherein the processor 1101, the memory 1102, and the transceiver 1104 are all connected to the bus interface 1103.

[0230] In this embodiment of the disclosure, the network-side device 1100 further includes a computer program stored on the memory 1102 and capable of running on the processor 1101.

[0231] In this embodiment of the disclosure, the processor 1101 is used for:

[0232] Upon receiving a random access request on a random access opportunity, a power-saving signal is sent over the recovery search space;

[0233] The random access opportunity and the beam failure recovery reference signal (BFR-RS) have a QCL relationship, and the energy-saving signal and the BFR-RS have a QCL relationship.

[0234] Optionally, the processor 1101 is further configured to:

[0235] Energy-saving signals are sent in the first search space based on the second QCL relationship;

[0236] Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship configured on the control resource set CORESET corresponding to the first search space.

[0237] Optionally, the processor 1101 is further configured to:

[0238] Starting from the third moment, energy-saving signals are sent over the recovery search space;

[0239] The third time point is at least a second preset time interval later than the fourth time point, and the fourth time point is the time when the random access request is received.

[0240] Optionally, the energy-saving signal is used to indicate the wake-up activation time OnDuration.

[0241] Optionally, the processor 1101 is further configured to:

[0242] Receive first feedback information, wherein the first feedback information is used to indicate that the terminal device has received an energy-saving signal;

[0243] Receive second feedback information, wherein the second feedback information is used to indicate that the terminal device has not received an energy-saving signal.

[0244] This disclosure also provides a computer-readable storage medium storing a computer program. When executed by a processor, the computer program implements the various processes of the above-described energy-saving signal receiving method embodiment or the various processes of the above-described energy-saving signal transmitting method embodiment, and achieves the same technical effect. To avoid repetition, further details are omitted here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0245] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0246] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the related technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this disclosure.

[0247] The embodiments of this disclosure have been described above with reference to the accompanying drawings. However, this disclosure is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this disclosure without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this disclosure.

Claims

1. An energy-saving signal receiving method, applied to a terminal device, comprising: If a beam failure is detected, a random access request is sent; After sending the random access request and before the Transmission Control Indicator (TCI) status is updated, the energy-saving signal is detected in the recovery search space based on the first quasi-co-address QCL relationship; wherein, the first QCL relationship is the QCL relationship of the Beam Failure Recovery Reference Signal (BFR-RS).

2. The method according to claim 1, further comprising: After sending the random access request and before updating the TCI state, energy-saving signals are detected in the first search space based on the second QCL relationship; Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship configured on the control resource set CORESET corresponding to the first search space.

3. The method according to claim 1, wherein, The detection of energy-saving signals in the recovery search space based on the first quasi-co-address QCL relationship includes: Starting from the second moment, energy-saving signals are detected in the recovery search space based on the first QCL relationship; Wherein, the second time is at least a first preset time interval later than the first time, and the first time is the time when the random access request is sent.

4. The method according to claim 1, further comprising: If an energy-saving signal is detected from the recovery search space, at least one of resetting the value of the beam failure counter and stopping the failure recovery timer is executed.

5. The method according to claim 4, further comprising: After sending the random access request, the wake-up activation time is OnDuration.

6. The method according to claim 1, wherein, The method further includes at least one of the following: Upon detecting an energy-saving signal, send the first feedback message; If no energy-saving signal is detected, a second feedback message is sent.

7. The method according to claim 1, further comprising: If no power-saving signal is detected, the activation time OnDuration is activated and random access requests continue to be sent.

8. The method according to claim 7, further comprising: When the OnDuration is woken up, control signals are listened for on the OnDuration.

9. The method according to claim 1, further comprising: If the TCI state is not updated and the detected energy-saving signal indicates hibernation, continue to detect energy-saving signals in the recovery search space based on the first QCL relationship.

10. The method of claim 9, further comprising: If the TCI state is not updated and the detected energy-saving signal indicates sleep mode, continue to send random access requests.

11. An energy-saving signal transmission method, applied to network-side equipment, comprising: Upon receiving a random access request on a random access opportunity, a power-saving signal is sent over the recovery search space; The random access opportunity and the beam failure recovery reference signal (BFR-RS) have a QCL relationship, and the energy-saving signal and the BFR-RS have a QCL relationship.

12. The method of claim 11, further comprising: Energy-saving signals are sent in the first search space based on the second QCL relationship; Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship configured on the control resource set CORESET corresponding to the first search space.

13. The method according to claim 11, wherein, Sending an energy-saving signal in the recovery search space includes: Starting from the third moment, energy-saving signals are sent over the recovery search space; The third time point is at least a second preset time interval later than the fourth time point, and the fourth time point is the time when the random access request is received.

14. The method according to claim 11, wherein, The energy-saving signal is used to indicate the wake-up activation time, OnDuration.

15. The method according to claim 11, wherein, The method further includes the following: Receive first feedback information, wherein the first feedback information is used to indicate that the terminal device has received an energy-saving signal; Receive second feedback information, wherein the second feedback information is used to indicate that the terminal device has not received an energy-saving signal.

16. A terminal device, comprising: The first transmitting module is used to send a random access request in the event of a detected beam failure; The first detection module is used to detect energy-saving signals in the recovery search space based on a first quasi-co-address QCL relationship after sending the random access request and before the Transmission Control Indicator (TCI) status is updated; wherein, the first QCL relationship is the QCL relationship of the Beam Failure Recovery Reference Signal (BFR-RS).

17. The terminal device according to claim 16, further comprising: The second detection module is used to detect energy-saving signals in the first search space based on the second QCL relationship after sending the random access request and before the TCI state update. Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship of the reference signal corresponding to the first search space.

18. The terminal device according to claim 16, wherein, The first detection module is specifically used for: Starting from the second moment, energy-saving signals are detected in the recovery search space based on the first QCL relationship; Wherein, the second time is at least a first preset time interval later than the first time, and the first time is the time when the random access request is sent.

19. The terminal device according to claim 16, further comprising: An execution module is configured to, upon detecting an energy-saving signal from the recovery search space, execute at least one of resetting the value of the beam failure counter to zero and stopping the failure recovery timer.

20. The terminal device according to claim 19, further comprising: The first wake-up module is used to activate the OnDuration time after the random access request is sent.

21. The terminal device according to claim 16, further comprising a second transmitting module, configured to perform at least one of the following: Upon detecting an energy-saving signal, send the first feedback message; If no energy-saving signal is detected, a second feedback message is sent.

22. The terminal device according to claim 16, further comprising: The second wake-up module is used to wake up the activation time OnDuration and continue sending random access requests if no energy-saving signal is detected.

23. The terminal device according to claim 22, further comprising: A listening module is used to listen for control signals on the OnDuration when the OnDuration is woken up.

24. The terminal device according to claim 16, further comprising: If the TCI state is not updated and the detected energy-saving signal indicates hibernation, continue to detect energy-saving signals in the recovery search space based on the first QCL relationship.

25. The terminal device according to claim 24, further comprising: The third sending module is used to continue sending random access requests when the TCI state is not updated and the detected energy-saving signal indicates sleep mode.

26. A network-side device, comprising: The first sending module is used to send an energy-saving signal in the recovery search space when a random access request is received on a random access opportunity. The random access opportunity and the beam failure recovery reference signal (BFR-RS) have a QCL relationship, and the energy-saving signal and the BFR-RS have a QCL relationship.

27. The network-side device according to claim 26, further comprising: The second transmitting module is used to transmit energy-saving signals in the first search space based on the second QCL relationship; Wherein, the first search space is a search space used for energy-saving signal transmission, and the first search space is different from the recovery search space. The second QCL relationship is the QCL relationship of the reference signal corresponding to the first search space.

28. The network-side device according to claim 26, wherein, The first sending module is specifically used for: Starting from the third moment, energy-saving signals are sent over the recovery search space; The third time point is at least a second preset time interval later than the fourth time point, and the fourth time point is the time when the random access request is received.

29. The network-side device according to claim 26, wherein, The energy-saving signal is used to indicate the wake-up activation time, OnDuration.

30. The network-side device according to claim 26, wherein, The network-side device further includes a receiving module, used for one of the following: Receive first feedback information, wherein the first feedback information is used to indicate that the terminal device has received an energy-saving signal; Receive second feedback information, wherein the second feedback information is used to indicate that the terminal device has not received an energy-saving signal.

31. A terminal device comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the energy-saving signal receiving method as described in any one of claims 1 to 10.

32. A network-side device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the energy-saving signal transmission method as described in any one of claims 11 to 15.

33. A computer-readable storage medium, wherein, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the energy-saving signal receiving method as described in any one of claims 1 to 10, or the steps of the energy-saving signal transmitting method as described in any one of claims 11 to 15.