SSB activation or deactivation method, terminal and network side equipment

Abstract

The embodiment of the invention discloses an SSB activation or deactivation method, a terminal and network side equipment, and belongs to the technical field of communication, and the SSB activation or deactivation method comprises the steps that the terminal sends a first signal, and the first signal is used for activating or deactivating a first SSB.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a method for activating or deactivating a Synchronization Signal and PBCH block (SSB), a terminal, and a network-side device. Background Art

[0002] To control the transmission complexity of downlink signals such as SSB and reduce network power consumption, the network needs to configure flexible SSB resources, and such SSBs are sometimes also called on-demand SSBs.

[0003] For such SSB resources, activation is only required when needed. In the case of non-activation, the terminal does not need to perform SSB detection on such SSB resources; at the same time, such SSB resources can also be used to assist other uplink transmissions to improve resource utilization.

[0004] In the related art, the activation or deactivation of SSB is determined by the network. In some cases, the network may not be able to timely learn about the terminal's demand for SSB, and thus may not be able to timely activate or deactivate the SSB, resulting in poor flexibility in SSB transmission. Summary of the Invention

[0005] Embodiments of this application provide a method for activating or deactivating an SSB, a terminal, and a network-side device, which can solve the problem of poor flexibility in SSB transmission.

[0006] In a first aspect, a method for activating or deactivating an SSB is provided, which is executed by a terminal. The method includes: the terminal sends a first signal, and the first signal is used to activate or deactivate a first SSB.

[0007] In a second aspect, a method for activating or deactivating an SSB is provided, which is executed by a network-side device. The method includes: the network-side device receives a first signal, and the first signal is used to activate or deactivate a first SSB.

[0008] In a third aspect, a device for activating or deactivating an SSB is provided, including: a sending module, configured to send a first signal, and the first signal is used to activate or deactivate a first SSB.

[0009] In a fourth aspect, a device for activating or deactivating an SSB is provided, including: a receiving module, configured to receive a first signal, and the first signal is used to activate or deactivate a first SSB.

[0010] In a fifth aspect, a terminal is provided, which includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0011] In a sixth aspect, a terminal is provided, which includes a processor and a communication interface. The communication interface is used to send a first signal, and the first signal is used to activate or deactivate a first SSB.

[0012] In a seventh aspect, a network-side device is provided, which includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0013] In an eighth aspect, a network-side device is provided, which includes a processor and a communication interface. The communication interface is used to receive a first signal, and the first signal is used to activate or deactivate a first SSB.

[0014] In a ninth aspect, a readable storage medium is provided. A program or instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0015] In a tenth aspect, a wireless communication system is provided, which includes a terminal and a network-side device. The terminal can be used to execute the steps of the method described in the first aspect, and the network-side device can be used to execute the steps of the method described in the second aspect.

[0016] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0017] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0018] In the embodiments of the present application, the terminal sends a first signal, and the first signal is used to activate or deactivate a first SSB. Thus, the terminal can send a signal for activating the SSB when the SSB is needed, and send a signal for deactivating the SSB when the SSB is not needed, improving the flexibility of SSB transmission and facilitating the improvement of resource utilization. Description of the Drawings

[0019] Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0020] Figure 2 is a schematic flowchart of a method for activating or deactivating an SSB according to an embodiment of the present application;

[0021] Figure 3 is a schematic flowchart of a method for activating or deactivating an SSB according to an embodiment of the present application;

[0022] Figure 4 is a schematic structural diagram of a device for activating or deactivating an SSB according to an embodiment of the present application;

[0023] Figure 5 is a schematic structural diagram of a device for activating or deactivating an SSB according to an embodiment of the present application;

[0024] Figure 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0025] Figure 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0026] Figure 8 is a schematic structural diagram of a network - side device according to an embodiment of the present application. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0028] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0029] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly informs the receiver of specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information based on the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0030] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses NR terms in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0031] Figure 1The block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be called a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be called a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0032] Next, with reference to the accompanying drawings, the method for activating or deactivating the SSB provided in the embodiments of this application will be described in detail through some embodiments and their application scenarios.

[0033] As Figure 2 shown, the embodiments of this application provide a method 200 for activating or deactivating an SSB. This method can be executed by a terminal. In other words, this method can be executed by software or hardware installed in the terminal. This method includes the following steps.

[0034] S202: The terminal sends a first signal, and the first signal is used to activate or deactivate a first SSB.

[0035] In each embodiment of this application, activating or deactivating the first SSB can either mean activating or deactivating the first SSB for the network or requesting the network to activate or deactivate the first SSB. The first signal can be a signal for activating or deactivating the first SSB, or a signal for requesting to activate or deactivate the first SSB.

[0036] The first SSB mentioned in various embodiments of the present application may be an On demand SSB. The first SSB may be a module including at least one of a synchronization signal, a broadcast signal, a broadcast channel, other system messages, a downlink broadcast channel, a positioning reference signal, a time-frequency tracking reference signal, a low-power wake-up signal, a channel state information reference signal, a downlink control channel, and a downlink control channel resource.

[0037] The first SSB mentioned in various embodiments of the present application may be any SSB that can be activated, deactivated, or sent in a switched manner. Activating the first SSB may be activating some SSB indexes on the SSB or activating all SSB indexes; deactivating the first SSB may be deactivating some SSB indexes on the SSB or deactivating all SSB indexes.

[0038] Activating the first SSB mentioned in various embodiments of the present application may be allowing the terminal to detect the first SSB on the first SSB resource, or allowing the network to send the first SSB on the first SSB resource; deactivating the first SSB may be not allowing the terminal to detect the first SSB on the first SSB resource, or not allowing the network to send the first SSB on the first SSB resource.

[0039] In the method for activating or deactivating the SSB provided by the embodiments of the present application, the terminal sends a first signal, and the first signal is used to activate or deactivate the first SSB. Thus, the terminal can send a signal for activating the SSB when the SSB is needed, and send a signal for deactivating the SSB when the SSB is not needed, improving the flexibility of SSB transmission and facilitating the improvement of resource utilization.

[0040] The method for activating or deactivating the SSB provided by the embodiments of the present application can also be extended to time-frequency resources, Demodulation Reference Signal (DMRS) resources, or sequences used for activating or deactivating other signal transmissions.

[0041] The following will introduce the following contents in multiple embodiments respectively: 1) The method for sending and retransmitting the first signal, including the retransmission mechanism and feedback mechanism of the first signal; 2) The resource selection and switching mechanism between the first SSB and the second SSB, including the selection rules between two types of SSBs; 3) The activation or deactivation effective time of the first SSB; 4) The sending conditions of the first signal; 5) The method for distinguishing whether the first signal is an activation signal or a deactivation signal. It can be understood that the embodiments constituted by the above multiple methods can be combined and implemented, or independently implemented.

[0042] For the first signal, in order to improve the reliability of activating or deactivating the first SSB, a retransmission mechanism for the first signal can be introduced. In some embodiments, the first signal supports repeated transmission, or rather, the first signal supports retransmission.

[0043] In some embodiments, the first signal supports repeated transmission, wherein the conditions for the terminal to repeat transmitting the first signal include at least one of the following:

[0044] 1) The number of transmissions of the first signal has not reached the maximum number of repeated transmissions.

[0045] This example introduces the maximum number of repeated transmissions of the first signal. When the number of transmissions of the first signal has not reached the maximum number of repeated transmissions, the first signal can be repeatedly transmitted; when the number of transmissions of the first signal reaches the maximum number of repeated transmissions, it is announced that the activation or deactivation of the first SSB fails, and the terminal only monitors the second SSB, and the second SSB can be a normal SSB.

[0046] The second SSB mentioned in various embodiments of this application can be a normal SSB. The second SSB can be a module including at least one of a synchronization signal, a broadcast signal, a broadcast channel, other system messages, a downlink broadcast channel, a positioning reference signal, a time-frequency tracking reference signal, a low-power wake-up signal, a channel state information reference signal, a downlink control channel, and a downlink control channel resource.

[0047] 2) The transmission time of the first signal is within the transmission time window or during the operation of the timer, and the transmission time window and the timer are used for transmitting the first signal.

[0048] This example introduces the transmission time window or timer of the first signal. If the current time is within the transmission time window or during the operation of the timer, the first signal can be repeatedly transmitted; otherwise, if the current time is not within the transmission time window or the timer times out or is not running, the first signal is no longer transmitted.

[0049] The start time of the above-mentioned transmission time window can be related to the initial transmission time of the first signal. For example, the start time of the transmission time window can be the initial transmission time of the first signal, and the duration of the transmission time window can be network-configured or pre-defined; the start time of the above-mentioned timer can be related to the initial transmission time of the first signal. For example, when the first signal is initially transmitted, the terminal starts the timer, and the duration of the timer can be network-configured or pre-defined.

[0050] 3) The measurement value of the first SSB is less than or not greater than a first threshold, where the first signal is used to activate the first SSB. The measurement value of the first SSB can be the Reference Signal Receiving Power (RSRP) or the Reference Signal Receiving Quality (RSRQ) of the first SSB, etc., and can also be a function value obtained based on the RSRP or RSRQ of the first SSB.

[0051] 4) The measurement value of the first SSB is greater than or not less than a first threshold, where the first signal is used to deactivate the first SSB. The measurement value of the first SSB can be the RSRP or RSRQ of the first SSB, etc., and can also be a function value obtained based on the RSRP or RSRQ of the first SSB.

[0052] 5) The terminal does not receive the feedback signal within the reception time window of the feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received.

[0053] In some embodiments, when the terminal does not receive the feedback signal within the reception time window of the feedback signal, the terminal may re - transmit the first signal.

[0054] In some embodiments, when the terminal does not receive the feedback signal within the reception time window of the feedback signal, the terminal may re - transmit the first signal at a certain time after the end of the reception time window. This certain time can be configured by the network or specified by the protocol.

[0055] Optionally, the starting position of the reception time window is network - configured or predefined. For example, the starting position of the reception time window is the first time when a downlink feedback signal can be received after transmitting the first signal.

[0056] Optionally, the length of the reception time window is related to at least one of the following: 1) the length of the Random Access Response (RAR) time window, for example, it can be the length of the RAR time window, or a function value obtained based on the length of the RAR time window, such as an integer multiple of the length of the RAR time window; 2) the period of the first SSB. For example, it can be the length of the first SSB period, or a function value obtained based on the length of the first SSB period, such as an integer multiple of the length of the first SSB period.

[0057] The above several embodiments introduce a feedback signal and a reception window for the feedback signal. By introducing the feedback signal, it is convenient for the terminal to know whether the first signal is successfully sent, improving the robustness of the first signal transmission; by introducing the reception window for the feedback signal, it is convenient to improve the reception efficiency of the feedback signal.

[0058] Optionally, in each of the above embodiments, the first signal corresponds to the feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received; or, the first signal corresponds to the beam of the first SSB; or, the beams used for multiple transmissions of the first signal are the same or different.

[0059] Optionally, the beams used for multiple transmissions of the first signal are different. Thus, after the network-side device (such as a base station) receives the repeatedly transmitted first signal, it can determine the transmission beam of the first SSB. Different transmission beams of the first signal can enable the base station to select a suitable (first SSB's) transmission beam through measurement.

[0060] Optionally, the beams used for multiple transmissions of the first signal are the same. This example can be used in weak coverage scenarios to improve the reliability of the first signal transmission. This example can be triggered according to the RSRP strength of the uplink signal and other conditions.

[0061] The above multiple embodiments mention the feedback signal of the first signal, which is convenient for the terminal to know whether the first signal is successfully sent. Optionally, after the terminal sends the first signal, the method further includes: the terminal receives a feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received; where the feedback signal includes at least one of the following:

[0062] 1) A specific SSB.

[0063] For example, in the Master Information Block (MIB) of the SSB, a specific bit (such as the Intra-freq re-selction indication bit) can be used to indicate whether the first signal is successfully received by the network.

[0064] For another example, the feedback signal of the first signal is the first SSB. That is, the terminal determines whether the first SSB is activated based on whether it can detect the first SSB or based on the signal capability or quality of the detected first SSB.

[0065] 2) The response message of the first signal.

[0066] This example can introduce a Radio Network Temporary Identity (RNTI) identification response message. This response message can indicate whether the first signal has been successfully received.

[0067] 3) Physical layer signaling.

[0068] For example, after the network receives the first signal, the network can use Physical Downlink Control Channel (PDCCH) signaling (order) to instruct the terminal to use the first SSB for various corresponding purposes, such as for corresponding cell measurements or downlink beam management, or to select a corresponding Physical Random Access Channel (PRACH) resource for PRACH transmission based on the first SSB.

[0069] For another example, after the network receives the first signal, the network can use PDCCH signaling to instruct the terminal to only use the first SSB for various corresponding purposes, such as for corresponding cell measurements or downlink beam management, or to select a corresponding PRACH resource for PRACH transmission based on the first SSB.

[0070] For yet another example, the network can use special PDCCH signaling, such as configuring the preamble id of the PDCCH signaling to a special value, to notify the terminal that the network has received the first signal.

[0071] For example, the network can use a specific common PDCCH, such as a specific Downlink Control Information (DCI) format or paging DCI, to notify the terminal whether the first signal has been successfully received.

[0072] The above embodiments introduce a suitable retransmission mechanism for the first signal to improve its robustness and reduce the delay to a certain extent. In addition, it also considers whether the network needs to indicate a feedback signal to the terminal to notify the terminal whether the activation or deactivation is successful.

[0073] The above embodiments introduce the sending and retransmission mechanisms of the first signal. The following will introduce the selection and handover mechanisms of the first SSB and the second SSB. Among them, the first SSB can be an On demand SSB, and the second SSB can be a normal SSB.

[0074] For the case where the resources of the first SSB and the second SSB are configured independently, or the resources of the first SSB and the second SSB are configured by a common SSB resource, but for frequency division multiplexing (FDM) or a situation with a large separation, when the first SSB has been activated, it is necessary to consider the measurement and reception of the SSB. For example, when to select to perform measurement and reception on the first SSB resource and when to select to perform measurement and reception on the second SSB resource. The following embodiments can try to ensure that the terminal selects an appropriate SSB, improve the successful reception of the SSB, and increase the success probability of corresponding processes such as optimal beam selection and random access process.

[0075] Optionally, the methods provided in the above embodiments further include at least one of the following steps:

[0076] 1) When the first SSB has been activated or has become effective, the terminal preferentially selects the first SSB.

[0077] In some embodiments, when the first SSB has been activated or has become effective, the terminal preferentially selects the first SSB. For example, select the first SSB for PRACH resource selection or for determining the downlink beam, etc.

[0078] 2) The terminal preferentially selects the first SSB within a first time range.

[0079] In some embodiments, the terminal preferentially selects the first SSB within a first time range. For example, select the first SSB for PRACH resource selection or for determining the downlink beam, etc.

[0080] The first time range may be network-configured or predefined; or, the first time range includes the PRACH configuration period or the SSB period. For example, within a PRACH configuration period or an SSB period, the network preferentially selects the first SSB for PRACH resource selection and performs PRACH transmission. When the terminal does not successfully receive the RAR and enters the next time period, the terminal preferentially selects the second SSB for subsequent PRACH resource selection.

[0081] 3) When initially transmitting the PRACH, the terminal preferentially selects the second SSB for PRACH resource selection, and the second SSB includes a typical SSB.

[0082] In some embodiments, when initially transmitting the PRACH, the terminal preferentially selects the second SSB for the selection of the corresponding PRACH resources.

[0083] The initial transmission of the PRACH includes at least one of the following: the first PRACH transmission without power ramping; the first PRACH transmission without repeated transmission; the first PRACH transmission in multiple repeated transmissions.

[0084] 4) The terminal determines whether to preferentially select the first SSB based on the measurement of the reference signal associated with the first SSB.

[0085] In some embodiments, whether the terminal preferentially selects the first SSB depends on the measurement metric of the reference signal associated with the first SSB.

[0086] For example, when the SS-RSRP measured by the reference signal (such as SSB) associated with the first SSB is not less than the SS-RSRP measured by the reference signal associated with the second SSB, the first SSB is selected for the determination of PRACH resources.

[0087] For another example, when the SS-RSRP measured by the reference signal (such as SSB) associated with the first SSB is not less than or greater than a certain threshold for at least one SSB index, the first SSB is selected for the selection of PRACH resources.

[0088] The reference signal associated with the first SSB mentioned in the embodiments of the present application may be an SSB, a Channel State Information-Reference Signal (CSI-RS), a Tracking Reference Signal (TRS), a MsgA, a MsgA Physical Uplink Shared Channel (PUSCH), a Physical Random Access Channel (PRACH), or a Configuration Grant Physical Uplink Shared Channel (CG PUSCH). The above reference signals may include the reference signals of one cell or the reference signals of multiple cells. The multiple cells may be of the same frequency carrier or different frequency carriers, and may be within a bandwidth or of different bandwidths. The different bandwidths may be continuous or discontinuous.

[0089] Optionally, in the above embodiments, the handover from the first SSB to the second SSB or the handover from the second SSB to the first SSB may also be supported.

[0090] Optionally, the methods provided by the above embodiments further include at least one of the following:

[0091] 1) If the number of PRACH transmission failures of the terminal on the PRACH resources associated with the first SSB is greater than or not less than the second threshold, the terminal switches to select the second SSB for PRACH resource selection.

[0092] 2) If the measurement of the reference signal associated with the first SSB does not meet the first condition, the terminal switches to select the second SSB.

[0093] In this example, the measurement of the reference signal can be the RSRP, RSRQ, etc. of the reference signal, or can also be a function value obtained based on the RSRP or RSRQ of the reference signal.

[0094] 3) If the measurement of the first SSB does not meet the second condition, the terminal switches to select the second SSB;

[0095] In this example, the measurement of the first SSB can be the RSRP, RSRQ, etc. of the first SSB, or can also be a function value obtained based on the RSRP or RSRQ of the first SSB.

[0096] Optionally, the measurement of the first SSB not meeting the second condition includes at least one of the following: the signal strength, signal quality, signal strength function value, or signal quality function value of the first SSB does not meet the second condition.

[0097] 4) If the number of transmissions of the terminal on the PRACH resources associated with the first SSB reaches the third threshold, the terminal switches to select the second SSB.

[0098] This third threshold can be the maximum number of allowed transmissions, or can also be a specified value less than the above maximum number of transmissions.

[0099] 5) If the PRACH transmissions attempted by the terminal are always on the PRACH resources associated with the first SSB, the terminal switches to select the second SSB;

[0100] In this example, the terminal is not allowed to switch back to the previously selected SSB type.

[0101] 6) If the number of retransmissions of the first signal is greater than or not less than the fourth threshold, the terminal switches to select the second SSB, where the first signal is used to activate the first SSB.

[0102] In this example, when the retransmission count of the activation signal of the first SSB exceeds or is not less than the fourth threshold, the terminal switches to select the second SSB. For example, it switches to use the PRACH resource corresponding to the second SSB for PRACH transmission.

[0103] In each of the above embodiments, the first type of SSB is the first SSB, and the second type of SSB is the second SSB; or, the first type of SSB is the second SSB, and the second type of SSB is the first SSB; the second SSB includes a typical SSB.

[0104] To ensure that the terminal and the network have a consensus on the effective time of the first SSB and avoid blindly sending and receiving the first SSB or blindly sending and receiving PRACH signals on the PRACH resource corresponding to the first SSB, this embodiment can determine the effective time of the first SSB through the following solution.

[0105] Optionally, in each of the above embodiments, the first signal is used to activate the first SSB, and the method further includes the following steps: the terminal selects the first SSB at at least one of the following times:

[0106] 1) After the terminal sends the first signal.

[0107] 2) After a first time interval after the terminal sends the first signal. The first time interval can be configured by the network or specified by the protocol. For example, it can depend on the uplink signal processing time.

[0108] 3) After the terminal receives the feedback signal. Optionally, the feedback signal is used to indicate that the first signal has been successfully received.

[0109] 4) After a second time interval after the terminal receives the feedback signal. Optionally, the feedback signal is used to indicate that the first signal has been successfully received. The second time interval can be configured by the network or specified by the protocol. For example, it can depend on the uplink signal processing time and the downlink signal reception and processing time.

[0110] Optionally, in parallel with the previous embodiment, the first signal is used to deactivate the first SSB, and the method further includes the following steps: the terminal selects the first SSB at at least one of the following times:

[0111] 1) Before the terminal sends the first signal.

[0112] 2) Before a first time point, the first time point is after a third time interval after the terminal sends the first signal. The third time interval can be configured by the network or specified by the protocol. For example, it can depend on the uplink signal processing time.

[0113] 3) Before the terminal receives the feedback signal. Optionally, the feedback signal is used to indicate that the first signal has been successfully received.

[0114] 4) Before a second time point, the second time point is after a fourth time interval after the terminal receives the feedback signal. Optionally, the feedback signal is used to indicate that the first signal has been successfully received. The fourth time interval can be configured by the network or specified by the protocol. For example, it can depend on the uplink signal processing time and the downlink signal reception and processing time.

[0115] Optionally, in parallel with the previous two embodiments, the method further includes: the terminal determines the effective time for activating or deactivating the first SSB based on at least one of the following: the resources occupied by the first signal, the indication information carried by the first signal. In this example, the effective time for activating or deactivating the first SSB can be determined by the resources occupied by the first signal or the indication information carried by the first signal.

[0116] To activate or request to activate the first SSB only when necessary, the solutions provided in the following embodiments can define the transmission conditions of the first signal.

[0117] Optionally, in each of the above embodiments, when the first signal is used to activate the first SSB, the transmission timing of the first signal includes at least one of the following:

[0118] 1) The number of random accesses of the terminal on the PRACH associated with the second SSB or the number of times of receiving a random access response message fails reaches a fifth threshold.

[0119] 2) The signal strength or quality of the second SSB does not meet the third condition.

[0120] In this example, for example, the signal strength, signal quality, signal strength function value, or signal quality function value of the second SSB does not meet the third condition.

[0121] In this example, for example, the SS-RSRP measured by the second SSB is lower than a threshold (i.e., does not meet the third condition). At this time, the first signal can be sent to activate or request to activate the first SSB.

[0122] 3) The number of attempts by the terminal to transmit on the PRACH resources associated with the second SSB reaches a sixth threshold and all transmissions fail.

[0123] The sixth threshold can be the maximum number of allowed transmissions or a specified value less than the above maximum number of transmissions.

[0124] 4) The terminal attempts two-step random access on the PRACH resources associated with the second SSB and still fails to access after falling back to four-step random access.

[0125] 5) The number of transmissions of the first signal is less than or not greater than the seventh threshold. The seventh threshold may be a configured or predefined value.

[0126] 6) The Timing Advance (TA) for transmitting the first signal is valid.

[0127] 7) The first signal is repeatedly transmitted, and the time interval from the last transmission is greater than or not less than the eighth threshold.

[0128] 8) The power of the PRACH signal transmitted by the terminal on the PRACH resource associated with the second SSB is greater than or not less than the ninth threshold. The ninth threshold may be the maximum transmission power.

[0129] 9) The preamble identifier in the RAR message received by the terminal is different from the preamble identifier transmitted by the terminal on the PRACH resource associated with the second SSB.

[0130] 10) The preamble identifier in the RAR message received by the terminal is different from the preamble identifier transmitted by the terminal on the PRACH resource associated with the second SSB, and the number of times the RAR message is received within the second time range is greater than or not less than the tenth threshold.

[0131] The second time range may be the length of one RAR time window, or the lengths of multiple RAR time windows, or a window additionally configured by the network, or a window specified by an additional protocol (such as 10 ms).

[0132] The tenth threshold may be configured by the network or specified by the protocol, or related to the number of Random Access Occasions (ROs) associated with the second SSB or the number of configured preambles. For example, the tenth threshold is the total number of preambles configured on the RO associated with the second SSB divided by the number of ROs associated with the second SSB, and then rounded down.

[0133] 11) The terminal has transmitted a second signal, and the second signal is used to activate the signal associated with the first SSB.

[0134] In this example, the second signal may be an activation signal used to activate other specific signals. The specific signals here may be paging, Physical Downlink Shared Channel (PDSCH), PDCCH, PRS, TRS, PRACH, PUCCH, PUSCH, CSI-RS, PTRS, MsgA, etc.

[0135] For example, when the terminal sends an uplink wake-up signal for activating a flexible RO, the terminal may send an uplink activation signal for activating the first SSB.

[0136] 12) The terminal detects a demand-based signal.

[0137] The demand-based signal here includes but is not limited to SSB, paging, PDSCH, PDCCH, PRS, TRS, PUSCH, etc.

[0138] For example, when a demand-based PDCCH is detected and the network does not need to save energy at this time, the first SSB corresponding to it can be activated.

[0139] 13) The time interval between the transmission time of the deactivation signal for deactivating the first SSB and the current time is greater than or not less than the eleventh threshold.

[0140] 14) The duration from the activation effective start time of the first SSB reaches the twelfth threshold.

[0141] For example, within a certain period of time after the activation of the first SSB becomes effective, the first SSB is considered to be activated and effective. After this period of time, it is deactivated by default, and the activation signal for the initial transmission can continue to be sent.

[0142] 15) The signal strength, signal quality, signal strength function value, or signal quality function value of the reference signal associated with the second SSB does not meet certain requirements. Specifically, for example, when the SS-RSRP measured by all the reference signals associated with the second SSB is lower than a threshold, an activation signal can be sent at this time to activate or request the activation of the first SSB.

[0143] In each of the above embodiments, the second SSB includes a typical SSB.

[0144] In the above multiple embodiments, the transmission of the first signal takes into account the actual network energy saving situation, cell coverage, capacity, and conflict situation, and it is proposed that it needs to be triggered under certain conditions.

[0145] In the above multiple embodiments, according to the actual system coverage situation, conflict situation, and network energy consumption status, the resource selection priority problem between the first SSB and the second SSB is considered, and the usage efficiency of the air interface resources is further improved, including the energy usage efficiency of the network and the terminal.

[0146] Optionally, in parallel with the previous embodiment, when the first signal is used to deactivate the first SSB, the transmission timing of the first signal includes at least one of the following:

[0147] 1) The number of random accesses by the terminal on the PRACH associated with the second SSB or the number of times of receiving a random access response message fails to reach the fifth threshold.

[0148] 2) The signal strength or quality of the second SSB can meet the third condition.

[0149] For example, the signal strength, signal quality, signal strength function value, or signal quality function value of the second SSB can meet the third condition.

[0150] 3) The number of attempts by the terminal to transmit on the PRACH resource associated with the second SSB fails to reach the sixth threshold. The sixth threshold can be the maximum allowed number of transmissions or a specified value less than the above maximum number of transmissions.

[0151] 4) The terminal attempts two-step random access and does not fallback to four-step random access.

[0152] 5) The number of transmissions of the first signal is less than or not greater than the seventh threshold. The seventh threshold can be a configured or predefined value.

[0153] 6) The TA for transmitting the first signal is valid.

[0154] 7) The first signal is a retransmission, and the time interval from the last transmission is greater than or not less than the eighth threshold.

[0155] 8) The power of the PRACH signal transmitted by the terminal on the PRACH resource associated with the second SSB is less than or not greater than the ninth threshold. The ninth threshold can be the maximum transmission power.

[0156] 9) The preamble identifier in the RAR message received by the terminal is the same as the preamble identifier transmitted by the terminal on the PRACH resource associated with the second SSB, that is, the RAR message is received successfully.

[0157] 10) The preamble identifier in the RAR message received by the terminal is different from the preamble identifier transmitted by the terminal on the PRACH resource associated with the second SSB, but the number of RAR messages received within the second time range is less than or not greater than the tenth threshold.

[0158] The second time range can be the length of a RAR time window, or multiple RAR time window lengths, or a window configured additionally by the network, or a window specified by an additional protocol (such as 10 ms).

[0159] The tenth threshold can be configured by the network or specified by the protocol, or related to the number of random access occasions (ROs) associated with the second SSB or the number of configured preambles. For example, the tenth threshold is the floor of the total number of preambles configured on the ROs associated with the second SSB divided by the number of ROs associated with the second SSB.

[0160] 11) The terminal does not send the third signal or the sending condition of the third signal is not satisfied, and the third signal is used to activate the demand-based signal associated with the first SSB.

[0161] For example, the terminal does not or does not meet the conditions to trigger the sending of other activation of demand-based signals, or the terminal meets the conditions to activate the demand-based signal.

[0162] The demand-based signal here can be SSB, paging, PDSCH, PDCCH, PRS, TRS, etc. For example, when the terminal has not sent the uplink wake-up signal for activating the demand-based PDCCH, the terminal can send the uplink deactivation signal for deactivating the first SSB. For example, when the terminal sends the uplink wake-up signal for deactivating the first SSB, the terminal can also send the uplink deactivation signal for deactivating the flexible RO.

[0163] 12) The conditions for deactivating the demand-based signal are met.

[0164] 13) The terminal does not detect the demand-based signal.

[0165] The demand-based signal includes but is not limited to SSB, paging, PDSCH, PDCCH, PRS, TRS, etc.

[0166] For example, when the demand-based PDCCH is not detected, at this time the network needs to save energy, and the corresponding first SSB can also be deactivated.

[0167] 14) The sending time of the activation signal for activating the first SSB is greater than or not less than the eleventh threshold from the current time.

[0168] 15) The signal strength, signal quality, signal strength function value, or signal quality function value of the reference signal associated with the second SSB can meet certain requirements. Specifically, for example, when at least some of the SS-RSRP values measured by all the reference signals associated with the second SSB are not lower than a threshold, at this time, a deactivation signal can be sent to deactivate or request to deactivate the first SSB.

[0169] In each of the above embodiments, the second SSB includes a typical SSB.

[0170] In the above-mentioned multiple embodiments, the transmission of the first signal takes into account the actual network energy saving situation, cell coverage, capacity and conflict situation, and it is proposed that it needs to be triggered under certain conditions.

[0171] In the above-mentioned multiple embodiments, according to the actual system coverage situation, conflict situation and network energy consumption status, the resource selection priority problem between the first SSB and the second SSB is considered, and the utilization efficiency of radio interface resources is further improved, including the energy utilization efficiency of the network and the terminal.

[0172] In order to determine whether the first signal is an inactive signal or a deactivation signal, the two signals need to be distinguished. Optionally, in each of the above embodiments, the first signal includes an activation signal or a deactivation signal, the activation signal is used to activate the first SSB, the deactivation signal is used to deactivate the first SSB, and the activation signal and the deactivation signal are distinguished by at least one of the following methods:

[0173] 1) Different time resources under the same signal configuration.

[0174] 2) Different frequency domain resources under the same signal configuration.

[0175] 3) Different spatial resources under the same signal configuration. For example, the same signal associated with two different reference signal indexes can be used for activation or deactivation respectively.

[0176] 4) Different signal sequences under the same signal configuration.

[0177] 5) Using different signal configurations.

[0178] In order to determine whether the first signal is an activation signal or a deactivation signal, this embodiment proposes a variety of signal discrimination methods. In this implementation, the activation signal and the deactivation signal can share some configurations. In order to reduce the complexity of signal design.

[0179] Optionally, the association of the reference signal mentioned in each of the above embodiments to the first signal or the first signal resource also includes but is not limited to: the association between the SSB and the activation signal resource, the relationship between the CSI-RS and the activation signal resource, the relationship between the TRS and the activation signal resource, the association between the PRACH resource and the activation signal resource, the association between the MsgA resource and the activation signal resource, the association between the MsgA PUSCH resource and the activation signal resource, the association between the CG PUSCH and the activation signal resource.

[0180] The above combination Figure 2 has been described in detail the activation or deactivation method of the SSB according to the embodiments of the present application. Next, it will be combined with Figure 3Describe in detail a method for activating or deactivating an SSB according to another embodiment of the present application. It can be understood that the interaction between the network-side device and the terminal described from the perspective of the network-side device is the same as or corresponding to the description on the terminal side in the method shown in Figure 2 The relevant description is appropriately omitted to avoid repetition.

[0181] Figure 3 FIG. is a schematic flowchart of the implementation process of the method for activating or deactivating an SSB according to an embodiment of the present application, which can be applied to a network-side device. As Figure 3 shown, the method 300 includes the following steps.

[0182] S302: The network-side device receives a first signal, where the first signal is used to activate or deactivate a first SSB.

[0183] In the embodiment of the present application, the network-side device receives a first signal, and the first signal is used to activate or deactivate a first SSB. The embodiment of the present application enables the terminal to send a signal for activating the SSB when the SSB is needed, and send a signal for deactivating the SSB when the SSB is not needed, improving the flexibility of SSB transmission and facilitating the improvement of resource utilization.

[0184] Optionally, as an embodiment, the first signal supports repeated reception, where the conditions for the network-side device to repeatedly receive the first signal include at least one of the following: 1) The number of receptions of the first signal has not reached the maximum number of repeated receptions; 2) The reception time of the first signal is within the reception time window or during the operation of a timer, where the reception time window and the timer are used to receive the first signal; 3) The network-side device has not sent the feedback signal within the transmission time window of the feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received.

[0185] Optionally, as an embodiment, the first signal is associated with a feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received; or, the first signal is associated with the beam of the first SSB; or, the beams used for multiple transmissions of the first signal are the same or different.

[0186] Optionally, as an embodiment, after the network-side device receives the first signal, the method further includes: The network-side device sends a feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received; where the feedback signal includes at least one of the following: a specific SSB, a response message of the first signal, a physical layer signaling.

[0187] Optionally, as an embodiment, the first signal includes an activation signal or a deactivation signal. The activation signal is used to activate the first SSB, and the deactivation signal is used to deactivate the first SSB. The activation signal and the deactivation signal are distinguished by at least one of the following methods: 1) Different time resources under the same signal configuration; 2) Different frequency domain resources under the same signal configuration; 3) Different spatial resources under the same signal configuration; 4) Different signal sequences under the same signal configuration; 5) Using different signal configurations.

[0188] In the embodiment of the present application, for the method for activating or deactivating the SSB provided, the execution subject may be a device for activating or deactivating the SSB. In the embodiment of the present application, taking the device for activating or deactivating the SSB to execute the method for activating or deactivating the SSB as an example, the device for activating or deactivating the SSB provided in the embodiment of the present application is described.

[0189] Figure 4 is a schematic structural diagram of a device for activating or deactivating an SSB according to an embodiment of the present application. This device may correspond to a terminal in other embodiments. As Figure 4 shown, the device 400 includes the following modules.

[0190] A sending module 402, configured to send a first signal, where the first signal is used to activate or deactivate a first SSB.

[0191] Optionally, the device 400 further includes a receiving module, a processing module, etc.

[0192] In the embodiment of the present application, the sending module sends a first signal, and the first signal is used to activate or deactivate the first SSB. Thus, the device 400 can send a signal for activating the SSB when the SSB is needed, and send a signal for deactivating the SSB when the SSB is not needed, improving the flexibility of SSB sending and facilitating the improvement of resource utilization.

[0193] Optionally, as an embodiment, the first signal supports repeated sending. Among them, the conditions for the sending module 402 to repeatedly send the first signal include at least one of the following: 1) The number of times the first signal is sent has not reached the maximum number of repeated sends; 2) The sending time of the first signal is within the sending time window or during the running period of the timer, where the sending time window and the timer are used to send the first signal; 3) The measurement value of the first SSB is less than or not greater than a first threshold, where the first signal is used to activate the first SSB; 4) The measurement value of the first SSB is greater than or not less than a first threshold, where the first signal is used to deactivate the first SSB; 5) The device has not received the feedback signal within the receiving time window of the feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received.

[0194] Optionally, as an embodiment, the start position of the reception time window is network-configured or predefined; or the length of the reception time window is related to at least one of the following: the length of the RAR time window; the period of the first SSB.

[0195] Optionally, as an embodiment, the first signal is associated with a feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received; or the first signal is associated with the beam of the first SSB; or the beams used for multiple transmissions of the first signal are the same or different.

[0196] Optionally, as an embodiment, the apparatus 400 further includes a reception module for receiving a feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received; where the feedback signal includes at least one of the following: a specific SSB, a response message of the first signal, a physical layer signaling.

[0197] Optionally, as an embodiment, the transmission module 402 is used for at least one of the following: 1) preferentially select the first SSB when the first SSB has been activated or is in effect; 2) preferentially select the first SSB within a first time range; 3) preferentially select a second SSB for PRACH resource selection when initially transmitting a PRACH, where the second SSB includes a typical SSB; 4) determine whether to preferentially select the first SSB based on a measurement of a reference signal associated with the first SSB.

[0198] Optionally, as an embodiment, the first time range is network-configured or predefined; or the first time range includes a PRACH configuration period or an SSB period.

[0199] Optionally, as an embodiment, the initial transmission of the PRACH includes at least one of the following: 1) the first PRACH transmission without power boost; 2) the first PRACH transmission without repeated transmission; 3) the first PRACH transmission in multiple repeated transmissions.

[0200] Optionally, as an embodiment, the sending module 402 is configured to perform at least one of the following: 1) If the number of failures of PRACH transmission on the PRACH resources associated with the first SSB is greater than or equal to a second threshold, switch to select the second SSB for PRACH resource selection; 2) If the measurement of the reference signal associated with the first SSB does not meet a first condition, switch to select the second SSB; 3) If the measurement of the first SSB does not meet a second condition, switch to select the second SSB; 4) If the number of transmissions on the PRACH resources associated with the first SSB reaches a third threshold, switch to select the second SSB; 5) If the attempted PRACH transmissions are always on the PRACH resources associated with the first SSB, switch to select the second SSB; 6) If the number of retransmissions of the first signal is greater than or equal to a fourth threshold, switch to select the second SSB, where the first signal is used to activate the first SSB; where, the first SSB is the first SSB, and the second SSB is the second SSB; or, the first SSB is the second SSB, and the second SSB is the first SSB; the second SSB includes a typical SSB.

[0201] Optionally, as an embodiment, the measurement of the first SSB not meeting the second condition includes at least one of the following: the signal strength, signal quality, signal strength function value, or signal quality function value of the first SSB does not meet the second condition.

[0202] Optionally, as an embodiment, the first signal is used to activate the first SSB, and the sending module 402 is configured to select the first SSB at least one of the following times: after sending the first signal; after a first time interval after sending the first signal; after receiving a feedback signal; after a second time interval after receiving the feedback signal.

[0203] Optionally, as an embodiment, the first signal is used to deactivate the first SSB, and the sending module 402 is configured to select the first SSB at least one of the following times: before sending the first signal; before a first time point, where the first time point is after a third time interval after sending the first signal; before receiving the feedback signal; before a second time point, where the second time point is after a fourth time interval after receiving the feedback signal.

[0204] Optionally, as an embodiment, the feedback signal is used to indicate that the first signal is successfully received.

[0205] Optionally, as an embodiment, the sending module 402 is configured to determine the effective time for activating or deactivating the first SSB based on at least one of the following: the resources occupied by the first signal, and the indication information carried by the first signal.

[0206] Optionally, as an embodiment, when the first signal is used to activate the first SSB, the transmission opportunity of the first signal includes at least one of the following: 1) the number of random accesses on the PRACH associated with the second SSB or the number of times of receiving a random access response message fails to reach the fifth threshold; 2) the signal strength or quality of the second SSB does not meet the third condition; 3) the number of attempts to transmit on the PRACH resources associated with the second SSB reaches the sixth threshold and all transmissions fail; 4) a two-step random access is attempted on the PRACH resources associated with the second SSB, and the access still fails after falling back to a four-step random access; 5) the number of transmissions of the first signal is less than or not greater than the seventh threshold; 6) the TA for transmitting the first signal is valid; 7) the first signal is repeatedly transmitted, and the time interval from the last transmission is greater than or not less than the eighth threshold; 8) the power of the PRACH signal transmitted on the PRACH resources associated with the second SSB is greater than or not less than the ninth threshold; 9) the preamble identifier in the received RAR message is different from the preamble identifier transmitted on the PRACH resources associated with the second SSB; 10) the preamble identifier in the received RAR message is different from the preamble identifier transmitted on the PRACH resources associated with the second SSB, and the number of times of receiving the RAR message within the second time range is greater than or not less than the tenth threshold; 11) a second signal has been transmitted, and the second signal is used to activate the signal associated with the first SSB; 12) a demand signal is detected; 13) the time interval from the transmission moment of the deactivation signal for deactivating the first SSB to the current moment is greater than or not less than the eleventh threshold; 14) the duration from the start moment of the activation effectiveness of the first SSB reaches the twelfth threshold; wherein, the second SSB includes a typical SSB.

[0207] Optionally, as an embodiment, when the first signal is used to deactivate the first SSB, the transmission opportunity of the first signal includes at least one of the following: 1) the number of random accesses on the PRACH associated with the second SSB or the number of times of receiving a random access response message fails to reach the fifth threshold; 2) the signal strength or quality of the second SSB can meet the third condition; 3) the number of attempts to transmit on the PRACH resources associated with the second SSB fails to reach the sixth threshold; 4) 2-step random access is attempted and does not fallback to 4-step random access; 5) the number of transmissions of the first signal is less than or not greater than the seventh threshold; 6) the TA of the first signal is valid; 7) the first signal is a retransmission, and the time interval from the last transmission is greater than or not less than the eighth threshold; 8) the power of the PRACH signal transmitted on the PRACH resources associated with the second SSB is less than or not greater than the ninth threshold; 9) the preamble identifier in the received RAR message is the same as the preamble identifier transmitted on the PRACH resources associated with the second SSB; 10) the preamble identifier in the received RAR message is different from the preamble identifier transmitted on the PRACH resources associated with the second SSB, but the number of times of receiving the RAR message within the second time range is less than or not greater than the tenth threshold; 11) the third signal is not transmitted or the transmission condition of the third signal is not met, and the third signal is used to activate the demand-based signal associated with the first SSB; 12) the condition for deactivating the demand-based signal is met; 13) the demand-based signal is not detected; 14) the transmission time of the activation signal used to activate the first SSB is greater than or not less than the eleventh threshold from the current moment; wherein, the second SSB includes a typical SSB.

[0208] Optionally, as an embodiment, the first signal includes an activation signal or a deactivation signal, the activation signal is used to activate the first SSB, the deactivation signal is used to deactivate the first SSB, and the activation signal and the deactivation signal are distinguished by at least one of the following methods: 1) different time resources under the same signal configuration; 2) different frequency domain resources under the same signal configuration; 3) different spatial resources under the same signal configuration; 4) different signal sequences under the same signal configuration; 5) using different signal configurations.

[0209] Optionally, as an embodiment, the first SSB includes a demand-based SSB.

[0210] The device 400 according to the embodiment of the present application may refer to the process of the method 200 corresponding to the embodiment of the present application. Moreover, each unit / module in the device 400 and the above other operations and / or functions respectively implement the corresponding processes in the method 200 and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described in detail here.

[0211] The activation or deactivation device of the SSB in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than terminals. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0212] Figure 5 is a schematic structural diagram of the activation or deactivation device of the SSB according to the embodiments of the present application, and this device may correspond to the network-side device in other embodiments. As Figure 5 shown, the device 500 includes the following modules.

[0213] A receiving module 502, configured to receive a first signal, where the first signal is used to activate or deactivate a first SSB.

[0214] Optionally, the device 500 further includes a sending module, a processing module, etc.

[0215] In the embodiments of the present application, the device 500 receives a first signal, and the first signal is used to activate or deactivate a first SSB. The embodiments of the present application enable the terminal to send a signal for activating the SSB when the SSB is needed and send a signal for deactivating the SSB when the SSB is not needed, improving the flexibility of SSB transmission and facilitating the improvement of resource utilization.

[0216] Optionally, as an embodiment, the first signal supports repeated reception, where the conditions for the receiving module 502 to repeatedly receive the first signal include at least one of the following: 1) the number of receptions of the first signal does not reach the maximum number of repeated receptions; 2) the reception time of the first signal is within the reception time window or during the operation of the timer, where the reception time window and the timer are used for receiving the first signal; 3) the device 500 does not send the feedback signal within the sending time window of the feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received.

[0217] Optionally, as an embodiment, the first signal is associated with the feedback signal, where the feedback signal is used to indicate whether the first signal is successfully received; or the first signal is associated with the beam of the first SSB; or the beams used for multiple transmissions of the first signal are the same or different.

[0218] Optionally, as an embodiment, the apparatus 500 further includes a sending module configured to send a feedback signal for indicating whether the first signal is successfully received; wherein the feedback signal includes at least one of the following: a specific SSB, a response message of the first signal, and physical layer signaling.

[0219] Optionally, as an embodiment, the first signal includes an activation signal or a deactivation signal, the activation signal is used to activate the first SSB, the deactivation signal is used to deactivate the first SSB, and the activation signal and the deactivation signal are distinguished by at least one of the following methods: 1) different time resources under the same signal configuration; 2) different frequency domain resources under the same signal configuration; 3) different spatial resources under the same signal configuration; 4) different signal sequences under the same signal configuration; 5) using different signal configurations.

[0220] The apparatus 500 according to the embodiment of the present application may refer to the process of the method 300 corresponding to the embodiment of the present application. Moreover, each unit / module in the apparatus 500 and the above other operations and / or functions respectively implement the corresponding processes in the method 300 and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described herein again.

[0221] The SSB activation or deactivation apparatus provided by the embodiment of the present application can implement Figures 2 to 3 each process implemented by the method embodiment and achieve the same technical effects. To avoid repetition, they will not be described here again.

[0222] Optionally, as Figure 6 shown, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602. A program or instruction that can run on the processor 601 is stored on the memory 602. For example, when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, it implements each step of the above SSB activation or deactivation method embodiment and can achieve the same technical effects. When the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, it implements each step of the above SSB activation or deactivation method embodiment and can achieve the same technical effects. To avoid repetition, they will not be described here again.

[0223] The embodiment of the present application further provides a terminal, including a processor and a communication interface. The communication interface is configured to send a first signal for activating or deactivating a first SSB. This terminal embodiment corresponds to the above terminal-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 7 FIG. is a schematic diagram of the hardware structure of a terminal for implementing the embodiment of the present application.

[0224] The terminal 700 includes, but is not limited to, at least some components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0225] Those skilled in the art can understand that the terminal 700 may further include a power supply (such as a battery) for powering each component. The power supply can be logically connected to the processor 710 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown does not limit the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0226] It should be understood that in the embodiments of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The graphics processor 7041 processes the image data of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0227] In the embodiments of the present application, after receiving downlink data from a network side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0228] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include volatile memory or non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synch link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0229] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 710 either.

[0230] Among them, the radio frequency unit 701 can be used to send a first signal, and the first signal is used to activate or deactivate a first SSB.

[0231] In the embodiments of the present application, the terminal sends a first signal, and the first signal is used to activate or deactivate a first SSB. Thus, the terminal can send a signal for activating the SSB when the SSB is needed, and send a signal for deactivating the SSB when the SSB is not needed, improving the flexibility of SSB transmission and facilitating the improvement of resource utilization.

[0232] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the embodiment of the method for activating or deactivating the SSB, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0233] The embodiment of the present application also provides a network-side device, including a processor and a communication interface. The communication interface is used to receive a first signal, and the first signal is used to activate or deactivate a first SSB. The embodiment of this network-side device corresponds to the embodiment of the above-mentioned network-side device method. Each implementation process and implementation manner of the above method embodiment can be applied to the embodiment of this network-side device, and the same technical effect can be achieved.

[0234] The embodiment of the present application also provides a network-side device. As Figure 8 shown, the network-side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82. After processing the received information, the radio frequency device 82 sends it out through the antenna 81.

[0235] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, and the baseband device 83 includes a baseband processor.

[0236] The baseband device 83 may include, for example, at least one baseband board, and multiple chips are arranged on the baseband board. As Figure 8 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 through a bus interface to call the program in the memory 85 and execute the operations of the network device shown in the above method embodiments.

[0237] The network-side device may further include a network interface 86, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0238] The network-side device 800 of the embodiment of the present application further includes: instructions or programs stored on the memory 85 and executable on the processor 84. The processor 84 calls the instructions or programs in the memory 85 to execute Figure 5 the methods executed by the modules shown, and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0239] The embodiments of the present application further provide a readable storage medium, on which a program or instructions are stored. When the program or instructions are executed by a processor, each process of the above-described method embodiments for activating or deactivating the SSB is implemented, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.

[0240] Wherein, the processor is the processor in the terminal described in the above embodiments. The readable storage medium can be non-volatile or non-transitory. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks, or optical discs, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0241] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run a program or instructions to implement each process of the above-described method embodiments for activating or deactivating the SSB, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.

[0242] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0243] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the above-described method embodiments for activating or deactivating the SSB, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.

[0244] The embodiments of the present application further provide a system for activating or deactivating an SSB, including: a terminal and a network-side device. The terminal can be used to execute the steps of the above-described method for activating or deactivating the SSB, and the network-side device can be used to execute the steps of the above-described method for activating or deactivating the SSB.

[0245] It should be noted that in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0246] From the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0247] The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A method for activating or deactivating an SSB, characterized in that, it includes: The terminal sends a first signal, and the first signal is used to activate or deactivate a first SSB.

2. The method according to claim 1, characterized in that, the first signal supports repeated transmission, wherein the conditions for the terminal to repeatedly transmit the first signal include at least one of the following: The number of transmissions of the first signal has not reached the maximum number of repeated transmissions; The transmission time of the first signal is within the transmission time window or during the operation of a timer, and the transmission time window and the timer are used for transmitting the first signal; The measurement value of the first SSB is less than or not greater than a first threshold, wherein the first signal is used to activate the first SSB; The measurement value of the first SSB is greater than or not less than a first threshold, wherein the first signal is used to deactivate the first SSB; The terminal does not receive the feedback signal within the reception time window of the feedback signal, wherein the feedback signal is used to indicate whether the first signal is successfully received.

3. The method according to claim 2, characterized in that, the starting position of the reception time window is network-configured or predefined; or the length of the reception time window is related to at least one of the following: the length of the RAR time window; the period of the first SSB.

4. The method according to any one of claims 1 to 3, characterized in that, the first signal is associated with a feedback signal, wherein the feedback signal is used to indicate whether the first signal is successfully received; or, the first signal is associated with the beam of the first SSB; or, the beams used for multiple transmissions of the first signal are the same or different.

5. The method according to claim 1, characterized in that, after the terminal sends the first signal, the method further includes: The terminal receives a feedback signal, and the feedback signal is used to indicate whether the first signal is successfully received; wherein the feedback signal includes at least one of the following: a specific SSB, a response message of the first signal, a physical layer signaling.

6. The method according to any one of claims 1 to 5, characterized in that, the method further includes at least one of the following: When the first SSB has been activated or has become effective, the terminal preferentially selects the first SSB; The terminal preferentially selects the first SSB within a first time range; When the terminal initially transmits a PRACH, it preferentially selects a second SSB for PRACH resource selection, and the second SSB includes a typical SSB; The terminal determines whether to preferentially select the first SSB based on the measurement value of the reference signal associated with the first SSB.

7. The method according to claim 6, characterized in that, the first time range is network-configured or predefined; or the first time range includes a PRACH configuration period or an SSB period.

8. The method according to claim 6, characterized in that, the initial transmission of the PRACH includes at least one of the following: The first PRACH transmission without power boost; The first PRACH transmission without repeated transmission; The first PRACH transmission in multiple repeated transmissions.

9. The method according to any one of claims 1 to 8, characterized in that the method further includes at least one of the following: If the number of PRACH transmission failures of the terminal on the PRACH resources associated with the first SSB is greater than or not less than the second threshold, the terminal switches to select the second SSB for PRACH resource selection; If the measurement of the reference signal associated with the first SSB does not meet the first condition, the terminal switches to select the second SSB; If the measurement of the first SSB does not meet the second condition, the terminal switches to select the second SSB; If the number of transmissions of the terminal on the PRACH resources associated with the first SSB reaches the third threshold, the terminal switches to select the second SSB; If the PRACH transmissions attempted by the terminal are always on the PRACH resources associated with the first SSB, the terminal switches to select the second SSB; If the number of retransmissions of the first signal is greater than or not less than the fourth threshold, the terminal switches to select the second SSB, where the first signal is used to activate the first SSB; wherein, the first SSB is the first SSB, and the second SSB is the second SSB; or, the first SSB is the second SSB, and the second SSB is the first SSB; The second SSB includes a typical SSB.

10. The method according to claim 9, characterized in that the measurement of the first SSB not meeting the second condition includes at least one of the following: The signal strength, signal quality, signal strength function value, or signal quality function value of the first SSB does not meet the second condition.

11. The method according to any one of claims 1 to 10, characterized in that the first signal is used to activate the first SSB, and the method further includes: the terminal selects the first SSB at at least one of the following times: after the terminal sends the first signal; after the first time interval after the terminal sends the first signal; after the terminal receives the feedback signal; after the second time interval after the terminal receives the feedback signal.

12. The method according to any one of claims 1 to 10, characterized in that the first signal is used to deactivate the first SSB, and the method further includes: the terminal selects the first SSB at at least one of the following times: before the terminal sends the first signal; before the first time point, the first time point is after the third time interval after the terminal sends the first signal; before the terminal receives the feedback signal; before the second time point, the second time point is after the fourth time interval after the terminal receives the feedback signal.

13. The method according to claim 11 or 12, characterized in that the feedback signal is used to indicate that the first signal is successfully received.

14. The method according to any one of claims 1 to 13, characterized in that The method further includes: the terminal determines the effective time for activating or deactivating the first SSB based on at least one of the following: The resources occupied by the first signal, and the indication information carried by the first signal.

15. The method according to any one of claims 1 to 14, characterized in that when the first signal is used to activate the first SSB, the transmission opportunity of the first signal includes at least one of the following: the number of random accesses of the terminal on the PRACH associated with the second SSB or the number of times of receiving a random access response message fails to reach a fifth threshold; the signal strength or quality of the second SSB cannot meet a third condition; the number of times the terminal attempts to transmit on the PRACH resource associated with the second SSB reaches a sixth threshold and all transmissions fail; the terminal attempts two-step random access on the PRACH resource associated with the second SSB and still fails to access after falling back to four-step random access; the number of transmissions of the first signal is less than or not greater than a seventh threshold; the TA for transmitting the first signal is valid; the first signal is repeatedly transmitted and the time interval from the last transmission is greater than or not less than an eighth threshold; the power of the PRACH signal transmitted by the terminal on the PRACH resource associated with the second SSB is greater than or not less than a ninth threshold; the preamble identifier in the RAR message received by the terminal is different from the preamble identifier transmitted by the terminal on the PRACH resource associated with the second SSB; the preamble identifier in the RAR message received by the terminal is different from the preamble identifier transmitted by the terminal on the PRACH resource associated with the second SSB, and the number of times of receiving the RAR message within a second time range is greater than or not less than a tenth threshold; the terminal has transmitted a second signal, and the second signal is used to activate a signal associated with the first SSB; the terminal detects a demand signal; the time interval from the transmission moment of the deactivation signal for deactivating the first SSB to the current moment is greater than or not less than an eleventh threshold; the duration from the activation effective start moment of the first SSB reaches a twelfth threshold; wherein, the second SSB includes a typical SSB.

16. The method according to any one of claims 1 to 14, characterized in that when the first signal is used to deactivate the first SSB, the transmission opportunity of the first signal includes at least one of the following: the number of random accesses of the terminal on the PRACH associated with the second SSB or the number of times of receiving a random access response message fails to reach the fifth threshold; the signal strength or quality of the second SSB can meet the third condition; the number of times the terminal attempts to transmit on the PRACH resource associated with the second SSB fails to reach the sixth threshold; the terminal attempts two-step random access and does not fall back to four-step random access; the number of transmissions of the first signal is less than or not greater than the seventh threshold; the TA for transmitting the first signal is valid; the first signal is retransmitted and the time interval from the last transmission is greater than or not less than the eighth threshold; The power of the PRACH signal sent by the terminal on the PRACH resource associated with the second SSB is less than or not greater than the ninth threshold; The preamble identifier in the RAR message received by the terminal is the same as the preamble identifier sent by the terminal on the PRACH resource associated with the second SSB; The preamble identifier in the RAR message received by the terminal is different from the preamble identifier sent by the terminal on the PRACH resource associated with the second SSB, but the number of times the RAR message is received within the second time range is less than or not greater than the tenth threshold; The terminal does not send the third signal or the sending condition of the third signal is not satisfied, and the third signal is used to activate the demand-based signal associated with the first SSB; The condition for deactivating the demand-based signal is satisfied; The terminal does not detect the demand-based signal; The sending time of the activation signal for activating the first SSB is greater than or not less than the eleventh threshold from the current time; Wherein, the second SSB includes a typical SSB.

17. The method according to any one of claims 1 to 16, characterized in that The first signal includes an activation signal or a deactivation signal. The activation signal is used to activate the first SSB, and the deactivation signal is used to deactivate the first SSB. The activation signal and the deactivation signal are distinguished by at least one of the following methods: Different time resources under the same signal configuration; Different frequency domain resources under the same signal configuration; Different spatial resources under the same signal configuration; Different signal sequences under the same signal configuration; Using different signal configurations.

18. The method according to any one of claims 1 to 17, characterized in that The first SSB includes a demand-based SSB.

19. A method for activating or deactivating an SSB, characterized in that includes: The network side device receives a first signal, and the first signal is used to activate or deactivate the first SSB.

20. The method according to claim 19, characterized in that The first signal supports repeated reception. Among them, the conditions for the network side device to repeatedly receive the first signal include at least one of the following: The number of receptions of the first signal has not reached the maximum number of repeated receptions; The reception time of the first signal is within the reception time window or during the operation of the timer, and the reception time window and the timer are used to receive the first signal; The network side device does not send the feedback signal within the sending time window of the feedback signal, and the feedback signal is used to indicate whether the first signal is successfully received.

21. The method according to claim 19 or 20, characterized in that The first signal is associated with the feedback signal, and the feedback signal is used to indicate whether the first signal is successfully received; or, The first signal is associated with the beam of the first SSB; or, The beams used for multiple transmissions of the first signal are the same or different.

22. The method according to claim 19, characterized in that After the network side device receives the first signal, the method further includes: The network-side device sends a feedback signal, and the feedback signal is used to indicate whether the first signal is successfully received; Wherein, the feedback signal includes at least one of the following: a specific SSB, a response message of the first signal, and a physical layer signaling.

23. The method according to any one of claims 19 to 22, characterized in that, The first signal includes an activation signal or a deactivation signal. The activation signal is used to activate the first SSB, and the deactivation signal is used to deactivate the first SSB. The activation signal and the deactivation signal are distinguished by at least one of the following methods: Different time resources under the same signal configuration; Different frequency domain resources under the same signal configuration; Different spatial resources under the same signal configuration; Different signal sequences under the same signal configuration; Using different signal configurations.

24. An apparatus for activating or deactivating an SSB, characterized in that, comprising: A sending module, configured to send a first signal, where the first signal is used to activate or deactivate a first SSB.

25. An apparatus for activating or deactivating an SSB, characterized in that, comprising: A receiving module, configured to receive a first signal, where the first signal is used to activate or deactivate a first SSB.

26. A terminal, characterized in that, comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 18 are implemented.

27. A network-side device, characterized in that, comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 19 to 23 are implemented.

28. A readable storage medium, characterized in that, The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 23 are implemented.

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