SSB activation or deactivation method, terminal, and network side device

Abstract

Embodiments of the present application relate to the technical field of communications. Disclosed are an SSB activation or deactivation method, a terminal, and a network side device. The SSB activation or deactivation method in the embodiments of the present application comprises: a terminal sends a first signal, wherein the first signal is used for activating or deactivating a first SSB.

Description

SSB activation or deactivation method, terminal and network side equipment

[0001] Cross-references

[0002] This application claims priority to Chinese patent application number 2023116124681 filed in China on November 28, 2023, with invention name “SSB activation or deactivation method, terminal and network side equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method for activating or deactivating a synchronization signal and a physical broadcast signal or a channel block (Synchronization Signal and PBCH block, SSB), a terminal, and a network-side device. Background Art

[0004] In order to control the transmission complexity of downlink signals such as SSB and reduce network power consumption, the network needs to configure flexible SSB resources. This type of SSB is sometimes also called on-demand SSB.

[0005] This type of SSB resource only needs to be activated when needed. When not activated, the terminal does not need to perform SSB detection on this type of SSB resource. At the same time, this type of SSB resource can also be used to assist other uplink transmissions to improve resource utilization.

[0006] In related technologies, the activation or deactivation of SSB is determined by the network. In some cases, the network may not be able to promptly learn of the terminal's demand for SSB and thus be unable to promptly deactivate or reactivate SSB, resulting in poor flexibility in SSB transmission. Summary of the Invention

[0007] The embodiments of the present application provide an SSB activation or deactivation method, terminal, and network-side device, which can solve the problem of poor flexibility in SSB transmission.

[0008] In a first aspect, a method for activating or deactivating an SSB is provided, which is performed 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.

[0009] In the second aspect, a method for activating or deactivating an SSB is provided, which is performed 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.

[0010] According to a third aspect, an SSB activation or deactivation device is provided, comprising: a sending module for sending a first signal, wherein the first signal is used to activate or deactivate a first SSB.

[0011] In a fourth aspect, an SSB activation or deactivation device is provided, comprising: a receiving module for receiving a first signal, wherein the first signal is used to activate or deactivate a first SSB.

[0012] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0013] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first signal, and the first signal is used to activate or deactivate a first SSB.

[0014] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0015] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive a first signal, and the first signal is used to activate or deactivate a first SSB.

[0016] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. 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.

[0017] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein 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.

[0018] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions 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.

[0019] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and 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.

[0020] In an embodiment of the present application, the terminal sends a first signal, which 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, thereby improving the flexibility of SSB transmission and facilitating improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0022] FIG2 is a schematic flowchart of a method for activating or deactivating SSB according to an embodiment of the present application;

[0023] FIG3 is a schematic flowchart of a method for activating or deactivating SSB according to an embodiment of the present application;

[0024] FIG4 is a schematic structural diagram of an SSB activation or deactivation device according to an embodiment of the present application;

[0025] FIG5 is a schematic structural diagram of an SSB activation or deactivation device according to an embodiment of the present application;

[0026] FIG6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0027] FIG7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0028] FIG8 is a schematic structural diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0030] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0031] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0032] It is worth noting that the technology described in the embodiments of the present 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 the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6G) system. thGeneration, 6G) communication system.

[0033] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (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 (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may 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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0034] The following, in combination with the accompanying drawings, describes in detail the SSB activation or deactivation method provided in the embodiments of the present application through some embodiments and their application scenarios.

[0035] As shown in Figure 2, an embodiment of the present application provides an SSB activation or deactivation method 200, which can be executed by a terminal. In other words, the method can be executed by software or hardware installed in the terminal. The method includes the following steps.

[0036] S202: The terminal sends a first signal, where the first signal is used to activate or deactivate a first SSB.

[0037] The activation or deactivation of the first SSB mentioned in various embodiments of the present application can indicate activation or deactivation of the first SSB by 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 activation or deactivation of the first SSB.

[0038] The first SSB mentioned in each embodiment 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 downlink control channel resources.

[0039] The first SSB mentioned in each embodiment of the present application can be any SSB that can be activated or deactivated or switched on and off. Activating the first SSB can be activating some SSB indexes (index) on the SSB or activating all SSB indexes; deactivating the first SSB can be deactivating some SSB indexes (index) on the SSB or deactivating all SSB indexes.

[0040] The activation of the first SSB mentioned in various embodiments of the present application may mean 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 mean 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.

[0041] The SSB activation or deactivation method provided in the embodiment of the present application is that 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, thereby improving the flexibility of SSB transmission and facilitating improving resource utilization.

[0042] The SSB activation or deactivation method provided in the embodiment of the present application can also be extended to activate or deactivate time-frequency resources, demodulation reference signal (DMRS) resources or sequences used for other signal transmissions.

[0043] The following will be divided into multiple embodiments to introduce the following contents respectively: 1) the transmission and retransmission method of the first signal, including the retransmission mechanism and feedback mechanism of the first signal; 2) the resource selection and switching mechanism of the first SSB and the second SSB, including the selection rules between the two types of SSB; 3) the activation or deactivation effective time of the first SSB; 4) the transmission 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 consisting of the above multiple methods can be implemented in combination or independently.

[0044] For the first signal, in order to improve the reliability of activating or deactivating the first SSB, a retransmission mechanism of the first signal can be introduced. In some embodiments, the first signal supports repeated transmission, or in other words, the first signal supports retransmission.

[0045] In some embodiments, the first signal supports repeated transmission, wherein the condition for the terminal to repeatedly transmit the first signal includes at least one of the following:

[0046] 1) The number of times the first signal is sent does not reach the maximum number of repeated transmissions.

[0047] This example introduces a maximum number of repetitions for the first signal. If the number of repetitions for the first signal does not reach the maximum number, the first signal may be retransmitted. When the number of repetitions for the first signal reaches the maximum number, activation or deactivation of the first SSB is declared a failure, and the terminal monitors only the second SSB, which may be a normal SSB.

[0048] The second SSB mentioned in each embodiment of the present application may be a typical SSB (normal SSB). The second 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 downlink control channel resources.

[0049] 2) The sending time of the first signal is within a sending time window or during the running of a timer. The sending time window and the timer are used to send the first signal.

[0050] This example introduces a sending time window or timer for the first signal. If the current moment is within the sending time window or the timer is running, the first signal can be sent repeatedly; otherwise, if the current moment is not within the sending time window or the timer has timed out or is not running, the first signal is no longer sent.

[0051] The starting moment of the above-mentioned sending time window may be related to the initial sending moment of the first signal. For example, the starting moment of the sending time window may be the initial sending moment of the first signal, and the duration of the sending time window may be network configured or predefined; the moment when the above-mentioned timer is started may be related to the initial sending moment of the first signal. For example, when the first signal is first sent, the terminal starts the timer, and the duration of the timer may be network configured or predefined.

[0052] 3) A measurement quantity 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 quantity of the first SSB may be a reference signal received power (RSRP) or a reference signal received quality (RSRQ) of the first SSB, or may be a function value obtained based on the RSRP or RSRQ of the first SSB.

[0053] 4) A 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 measurement value of the first SSB may be the RSRP or RSRQ of the first SSB, or a function value obtained based on the RSRP or RSRQ of the first SSB.

[0054] 5) The terminal does not receive the feedback signal within a feedback signal reception time window, wherein the feedback signal is used to indicate whether the first signal is successfully received.

[0055] In some embodiments, if the terminal does not receive the feedback signal within the feedback signal reception time window, the terminal may repeatedly send the first signal.

[0056] In some embodiments, if the terminal does not receive the feedback signal within the feedback signal reception time window, the terminal may retransmit the first signal at a certain time after the reception time window ends. The certain time here may be specified by network configuration or protocol.

[0057] Optionally, the starting position of the receiving time window is network configured or predefined, for example, the starting position of the receiving time window is the first time when a downlink feedback signal can be received after the first signal is sent.

[0058] Optionally, the length of the receiving time window is related to at least one of the following: 1) the length of the random access response (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.

[0059] The above embodiments introduce a feedback signal and a receiving window for the feedback signal. The introduced feedback signal facilitates the terminal to know whether the first signal is sent successfully, thereby improving the robustness of the first signal sending; the introduced feedback signal receiving window facilitates the improvement of the feedback signal receiving efficiency.

[0060] Optionally, in each of the above embodiments, the first signal is associated (correspondence) 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 (correspondence) with the beam of the first SSB; or, the beams used for sending the first signal multiple times are the same or different.

[0061] Optionally, the beams used for sending the first signal multiple times are different. Thus, after receiving the repeatedly transmitted first signal, the network side device (such as a base station) can determine the transmission beam of the first SSB. The different transmission beams of the first signal allow the base station to select a suitable transmission beam (of the first SSB) through measurement.

[0062] Optionally, the beam used for sending the first signal multiple times is the same. This example can be used in weak coverage situations to improve the reliability of the first signal transmission. This example can be triggered based on the RSRP strength of the uplink signal and other conditions.

[0063] The above embodiments mention feedback signals of the first signal, which facilitate 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 receiving a feedback signal, the feedback signal being used to indicate whether the first signal is successfully received; wherein the feedback signal includes at least one of the following:

[0064] 1) Specific SSB.

[0065] In this example, a specific bit, such as an intra-freq re-selction indication bit, may be used in the Master Information Block (MIB) of the SSB to indicate whether the first signal is successfully received by the network.

[0066] 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 the first SSB can be detected or based on the signal capability or quality of the detected first SSB.

[0067] 2) A response message to the first signal.

[0068] This example may introduce a corresponding Radio Network Temporary Identity (RNTI) identification response message. The response message may indicate whether the first signal is successfully received.

[0069] 3) Physical layer signaling.

[0070] For example, after the first signal is received by the network, the network can instruct the terminal through the physical downlink control channel (PDCCH) signaling (order) to use the first SSB for various corresponding purposes, such as corresponding cell measurement or downlink beam management, or select the corresponding physical random access channel (PRACH) resource according to the first SSB for PRACH transmission.

[0071] For another example, after the first signal is received by the network, the network can instruct the terminal through PDCCH signaling that it can only use the first SSB for corresponding purposes, such as corresponding cell measurement or downlink beam management, or select the corresponding PRACH resource for PRACH transmission based on the first SSB.

[0072] For another example, the network may use special PDCCH signaling, such as configuring a preamble ID of the PDCCH signaling to a special value, to notify the terminal that the network has received the first signal.

[0073] For example, the network may 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 is successfully received.

[0074] The above embodiment introduces 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 inform the terminal whether the activation or deactivation is successful.

[0075] The above embodiments introduce the sending and retransmission mechanism of the first signal. The following will introduce the selection and switching mechanism of the first SSB and the second SSB, where the first SSB can be an on-demand SSB and the second SSB can be a normal SSB.

[0076] In the case where the resources of the first SSB and the resources of the second SSB are independently configured, or the resources of the first SSB and the second SSB are configured by a common SSB resource, but are frequency division multiplexing (FDM) or are far apart, when the first SSB has been activated, it is necessary to consider the measurement and reception of the SSB, for example, when to choose to measure and receive on the first SSB resource and when to choose to measure and receive on the second SSB resource. The following embodiments can ensure that the terminal selects the appropriate SSB as much as possible, improve the success probability of the SSB being received successfully, and improve the success probability of corresponding processes such as optimal beam selection and random access.

[0077] Optionally, the methods provided in the above embodiments further include at least one of the following steps:

[0078] 1) When the first SSB has been activated or has taken effect, the terminal preferentially selects the first SSB.

[0079] In some embodiments, when the first SSB is activated or effective, the terminal preferentially selects the first SSB, for example, selecting the first SSB for PRACH resource selection or for downlink beam determination.

[0080] 2) The terminal preferentially selects the first SSB within a first time range.

[0081] In some embodiments, the terminal preferentially selects the first SSB within the first time range, for example, selecting the first SSB for PRACH resource selection or for determining a downlink beam.

[0082] The first time range may be network-configured or predefined; or the first time range includes a PRACH configuration period or an 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 PRACH transmission. When the terminal fails to successfully receive the RAR and enters the next time period, the terminal preferentially selects the second SSB for subsequent PRACH resource selection.

[0083] 3) The terminal preferentially selects the second SSB for PRACH resource selection when transmitting PRACH for the first time, and the second SSB includes a typical SSB.

[0084] In some embodiments, the terminal preferentially selects the second SSB for selection of the corresponding PRACH resource when transmitting PRACH for the first time.

[0085] The initial transmission PRACH includes at least one of the following: the first PRACH transmission without power ramping; the first PRACH transmission without repeated transmission; and the first PRACH transmission among multiple repeated transmissions.

[0086] 4) The terminal determines whether to prioritize the first SSB based on the measurement amount of the reference signal associated with the first SSB.

[0087] In some embodiments, whether the terminal preferentially selects the first SSB depends on a measurement metric of the terminal on a reference signal associated with the first SSB.

[0088] 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 determining the PRACH resource.

[0089] For another example, when the SS-RSRP measured for 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 PRACH resource selection.

[0090] The reference signal associated with the first SSB mentioned in each embodiment of the present application may be SSB, Channel State Information-Reference Signal (CSI-RS), Tracking Reference Signal (TRS), Message A (MsgA), MsgA Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), Configuration Grant Physical Uplink Shared Channel (CG PUSCH). The above-mentioned reference signal may include a reference signal of one cell or reference signals of multiple cells. The multiple cells may be the same frequency carrier or different frequency carriers, and may be within a bandwidth or different bandwidths. The different bandwidths may be continuous or discontinuous.

[0091] Optionally, in each of the above embodiments, switching from the first SSB to the second SSB may be supported, or switching from the second SSB to the first SSB may be supported.

[0092] Optionally, the methods provided in the above embodiments further include at least one of the following:

[0093] 1) If the number of failures of PRACH transmission of the terminal on the PRACH resource associated with the first SSB is greater than or not less than a second threshold, the terminal switches to selecting the second SSB for PRACH resource selection.

[0094] 2) If the measurement quantity of the reference signal associated with the first type of SSB fails to meet the first condition, the terminal switches to selecting the second type of SSB.

[0095] In this example, the measurement quantity of the reference signal may be RSRP, RSRQ, etc. of the reference signal, or may be a function value obtained based on the RSRP or RSRQ of the reference signal.

[0096] 3) If the measurement value of the first SSB fails to satisfy the second condition, the terminal switches to selecting the second SSB;

[0097] In this example, the measurement quantity of the first type of SSB may be the RSRP, RSRQ, etc. of the first type of SSB, or may be a function value obtained based on the RSRP or RSRQ of the first type of SSB.

[0098] Optionally, the measurement quantity of the first type of SSB cannot meet the second condition, including at least one of the following: the signal strength, signal quality, signal strength function value or signal quality function value of the first type of SSB cannot meet the second condition.

[0099] 4) If the number of times the terminal transmits on the PRACH resource associated with the first SSB reaches a third threshold, the terminal switches to selecting the second SSB.

[0100] The third threshold may be the maximum number of transmissions allowed, or a specified value smaller than the maximum number of transmissions allowed.

[0101] 5) If the PRACH transmission attempted by the terminal has always been on the PRACH resource associated with the first SSB, the terminal switches to selecting the second SSB;

[0102] In this example, the terminal is not allowed to switch back to the previously selected SSB type.

[0103] 6) If the number of retransmissions of the first signal is greater than or not less than a fourth threshold, the terminal switches to selecting a second SSB, wherein the first signal is used to activate the first SSB.

[0104] In this example, when the number of activation signal retransmissions of the first SSB exceeds or is not less than the fourth threshold, the terminal switches to selecting the second SSB, for example, switching to using the PRACH resource corresponding to the second SSB for PRACH transmission.

[0105] In 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.

[0106] In order to ensure that the terminal and the network have a consensus on the effective time of the first SSB, avoid blindly sending and receiving the first SSB, or blindly sending and receiving PRACH signals on the corresponding PRACH resources of the first SSB, this embodiment can determine the effective time of the first SSB through the following scheme.

[0107] Optionally, in each of the above embodiments, the first signal is used to activate the first SSB, and the method further includes the following step: the terminal selects the first SSB at at least one of the following times:

[0108] 1) After the terminal sends the first signal.

[0109] 2) After a first time interval after the terminal sends the first signal. The first time interval may be configured by the network or specified by a protocol, for example, it may depend on the uplink signal processing time.

[0110] 3) After the terminal receives the feedback signal, optionally, the feedback signal is used to indicate that the first signal is successfully received.

[0111] 4) After a second time interval after the terminal receives the feedback signal. Optionally, the feedback signal indicates that the first signal was successfully received. The second time interval may be configured by the network or specified by the protocol, for example, it may depend on the uplink signal processing time and the downlink signal reception and processing time.

[0112] 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:

[0113] 1) Before the terminal sends the first signal.

[0114] 2) Before the first time point, the first time point is located after a third time interval after the terminal sends the first signal. The third time interval may be specified by a network configuration or protocol, for example, may depend on an uplink signal processing time.

[0115] 3) Before the terminal receives a feedback signal, optionally, the feedback signal is used to indicate that the first signal is successfully received.

[0116] 4) before a second time point, the second time point being after a fourth time interval after the terminal receives the feedback signal. Optionally, the feedback signal is used to indicate that the first signal was successfully received. The fourth time interval may be configured by the network or specified by the protocol, for example, and may depend on the uplink signal processing time and the downlink signal reception and processing time.

[0117] Optionally, in parallel with the previous two embodiments, the method further includes: the terminal determining the effective time of activation or deactivation of the first SSB based on at least one of the following: resources occupied by the first signal, and indication information carried by the first signal. In this example, the effective time of activation or deactivation of the first SSB can be determined by the resources occupied by the first signal or the indication information carried by the first signal.

[0118] In order to activate or request activation of the first SSB only when necessary, the scheme provided in the following embodiments can define the sending conditions of the first signal.

[0119] Optionally, in each of the above embodiments, when the first signal is used to activate the first SSB, the timing of sending the first signal includes at least one of the following:

[0120] 1) The number of random accesses performed by the terminal on the PRACH associated with the second SSB or the number of failed random access response message receptions reaches a fifth threshold.

[0121] 2) The signal strength or quality of the second SSB cannot meet the third condition.

[0122] In this example, the signal strength, signal quality, signal strength function value, or signal quality function value of the second SSB cannot satisfy the third condition.

[0123] In this example, the SS-RSRP measured by the second SSB is lower than a threshold (ie, the third condition cannot be met). At this time, a first signal can be sent to activate or request activation of the first SSB.

[0124] 3) 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.

[0125] The sixth threshold may be the maximum number of transmissions allowed, or a specified value smaller than the maximum number of transmissions allowed.

[0126] 4) The terminal attempted 2-step random access on the PRACH resource associated with the second SSB, and still failed to access after falling back to 4-step random access.

[0127] 5) The number of times the first signal is sent is less than or not greater than a seventh threshold. The seventh threshold may be a configured or predefined value.

[0128] 6) The timing advance (TA) for sending the first signal is valid.

[0129] 7) The first signal is sent repeatedly, and the time interval between the first signal and the last signal is greater than or not less than an eighth threshold.

[0130] 8) The power of the PRACH signal sent by the terminal on the PRACH resource associated with the second SSB is greater than or not less than a ninth threshold. The ninth threshold may be the maximum transmit power.

[0131] 9) 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.

[0132] 10) The preamble code identifier in the RAR message received by the terminal is different from the preamble code identifier sent 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.

[0133] The second time range may be a RAR time window length, or multiple RAR time window lengths, or a window additionally configured for the network, or a window specified for an additional protocol (eg, 10 ms).

[0134] The tenth threshold may be configured by the network or specified by the protocol, or may be related to the number of random access opportunities (RACH 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 ROs associated with the second SSB divided by the number of ROs associated with the second SSB, rounded down.

[0135] 11) The terminal has sent a second signal, which is used to activate a signal associated with the first SSB.

[0136] In this example, the second signal may be an activation signal for activating 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.

[0137] In this 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.

[0138] 12) The terminal detects a demand-based signal.

[0139] The demand-based signals here include but are not limited to SSB, paging, PDSCH, PDCCH, PRS, TRS, PUSCH, etc.

[0140] In this example, when a demand-based PDCCH is detected, the network does not need to save energy, and the corresponding first SSB can be activated.

[0141] 13) The time interval between the sending moment of the deactivation signal for deactivating the first SSB and the current moment is greater than or not less than the eleventh threshold.

[0142] 14) The time from the activation start time of the first SSB reaches the twelfth threshold.

[0143] In this example, for a certain period of time after the activation of the first SSB takes effect, the first SSB is considered to be activated and effective. After this period of time, it is deactivated by default and the activation signal of the initial transmission can continue to be sent.

[0144] 15) The signal strength, signal quality, signal strength function value, or signal quality function value of the reference signal associated with the second SSB fails to meet certain requirements. For example, when the SS-RSRP measured for all reference signals associated with the second SSB is below a threshold, an activation signal may be sent to activate or request activation of the first SSB.

[0145] In each of the above embodiments, the second SSB includes a typical SSB.

[0146] In the above embodiments, the sending of the first signal takes into account the actual network energy saving situation, cell coverage, capacity and conflict situation, and proposes that it needs to be triggered under certain conditions.

[0147] The above multiple embodiments consider the resource selection priority between the first SSB and the second SSB based on the actual system coverage, conflict conditions and network energy consumption status, and further improve the utilization efficiency of air interface resources, including the energy utilization efficiency of the network and the terminal.

[0148] Optionally, in parallel with the previous embodiment, when the first signal is used to deactivate the first SSB, a timing for sending the first signal includes at least one of the following:

[0149] 1) The number of random accesses performed by the terminal on the PRACH associated with the second SSB or the number of failed random access response message receptions does not reach the fifth threshold.

[0150] 2) The signal strength or quality of the second SSB can meet the third condition.

[0151] In this example, the signal strength, signal quality, signal strength function value, or signal quality function value of the second SSB can satisfy the third condition.

[0152] 3) The number of transmission attempts by the terminal on the PRACH resource associated with the second SSB does not reach a sixth threshold. The sixth threshold may be a maximum number of transmissions allowed, or a specified value less than the maximum number of transmissions.

[0153] 4) The terminal attempts 2-step random access and does not fall back to 4-step random access.

[0154] 5) The number of times the first signal is sent is less than or not greater than a seventh threshold. The seventh threshold may be a configured or predefined value.

[0155] 6) The TA that sends the first signal is valid.

[0156] 7) The first signal is resent, and the time interval between the first signal and the last signal is greater than or not less than an eighth threshold.

[0157] 8) 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 a ninth threshold. The ninth threshold may be the maximum transmit power.

[0158] 9) 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, that is, the RAR message is received successfully.

[0159] 10) 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.

[0160] The second time range may be a RAR time window length, or multiple RAR time window lengths, or a window additionally configured for the network, or a window specified for an additional protocol (eg, 10 ms).

[0161] The tenth threshold may be configured by the network or specified by the protocol, or may be related to the number of random access opportunities (RACH 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 ROs associated with the second SSB divided by the number of ROs associated with the second SSB, rounded down.

[0162] 11) The terminal does not send a third signal or a sending condition of the third signal is not met, and the third signal is used to activate a demand-based signal associated with the first SSB.

[0163] In this example, the terminal does not or does not meet the conditions to trigger sending of other activation-based demand signals, or the terminal meets the conditions to deactivate the activation-based demand signals.

[0164] The demand-based signal here can be SSB, paging, PDSCH, PDCCH, PRS, TRS, etc. For example, when the terminal has not yet sent an uplink wake-up signal for activating the demand-based PDCCH, the terminal can send an uplink deactivation signal for deactivating the first SSB. For example, when the terminal has sent an uplink wake-up signal for deactivating the first SSB, the terminal can also send an uplink deactivation signal for deactivating the flexible RO.

[0165] 12) The conditions for deactivating the demand signal are met.

[0166] 13) The terminal does not detect the demand-based signal.

[0167] Demand-based signals include but are not limited to SSB, paging, PDSCH, PDCCH, PRS, TRS, etc.

[0168] For example, when the PDCCH is not detected based on demand, the network needs to save energy and the corresponding first SSB can also be deactivated.

[0169] 14) The time when the activation signal for activating the first SSB is sent is greater than or not less than the eleventh threshold value from the current time.

[0170] 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. For example, when at least some of the SS-RSRP values ​​measured for all reference signals associated with the second SSB are not less than a threshold, a deactivation signal may be sent to deactivate or request deactivation of the first SSB.

[0171] In each of the above embodiments, the second SSB includes a typical SSB.

[0172] In the above embodiments, the sending of the first signal takes into account the actual network energy saving situation, cell coverage, capacity and conflict situation, and proposes that it needs to be triggered under certain conditions.

[0173] The above multiple embodiments consider the resource selection priority between the first SSB and the second SSB based on the actual system coverage, conflict conditions and network energy consumption status, and further improve the utilization efficiency of air interface resources, including the energy utilization efficiency of the network and the terminal.

[0174] In order to determine whether the first signal is inactive or deactivated, 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, and 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:

[0175] 1) Different time resources under the same signal configuration.

[0176] 2) Different frequency domain resources under the same signal configuration.

[0177] 3) Different spatial resources under the same signal configuration: For example, the same signal associated with two different reference signal indices can be used for activation or deactivation respectively.

[0178] 4) Different signal sequences under the same signal configuration.

[0179] 5) Use a different signal configuration.

[0180] In order to determine whether the first signal is an activation signal or a deactivation signal, this embodiment proposes multiple signal differentiation methods. In this implementation, the activation signal and the deactivation signal can share some configurations to reduce the complexity of signal design.

[0181] Optionally, the association between the reference signal and the first signal or the first signal resource mentioned in the above embodiments also includes but is not limited to: the association between SSB and activation signal resources, the relationship between CSI-RS and activation signal resources, the relationship between TRS and activation signal resources, the association between PRACH resources and activation signal resources, the association between MsgA resources and activation signal resources, the association between MsgA PUSCH resources and activation signal resources, and the association between CG PUSCH and activation signal resources.

[0182] The above describes in detail the SSB activation or deactivation method according to an embodiment of the present application in conjunction with Figure 2. The following describes in detail the SSB activation or deactivation method according to another embodiment of the present application in conjunction with Figure 3. 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 corresponds to the description of the terminal side in the method shown in Figure 2. To avoid repetition, the relevant description is appropriately omitted.

[0183] FIG3 is a flow chart of a method for activating or deactivating SSB according to an embodiment of the present invention, which can be applied to a network-side device. As shown in FIG3 , the method 300 includes the following steps.

[0184] S302: The network side device receives a first signal, where the first signal is used to activate or deactivate a first SSB.

[0185] In an embodiment of the present application, a network-side device receives a first signal, which 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 to send a signal for deactivating the SSB when the SSB is not needed, thereby improving the flexibility of SSB transmission and facilitating the improvement of resource utilization.

[0186] Optionally, as an embodiment, the first signal supports repeated reception, wherein the conditions for the network side device to repeatedly receive the first signal include at least one of the following: 1) the number of times the first signal is received does not reach the maximum number of repeated receptions; 2) the reception time of the first signal is within the receiving time window or during the operation of the timer, and the receiving time window and the timer are used to receive the first signal; 3) the network side device does not send the feedback signal within the sending time window of the feedback signal, wherein the feedback signal is used to indicate whether the first signal is successfully received.

[0187] Optionally, as an embodiment, 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 a beam of the first SSB; or, the beams used for sending the first signal multiple times are the same or different.

[0188] 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, 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 physical layer signaling.

[0189] 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, 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.

[0190] The SSB activation or deactivation method provided in the embodiment of the present application can be executed by an SSB activation or deactivation device. In the embodiment of the present application, the SSB activation or deactivation method performed by the SSB activation or deactivation device is taken as an example to illustrate the SSB activation or deactivation device provided in the embodiment of the present application.

[0191] FIG4 is a schematic diagram of the structure of an SSB activation or deactivation device according to an embodiment of the present application, which may correspond to a terminal in other embodiments. As shown in FIG4 , the device 400 includes the following modules.

[0192] The sending module 402 is used to send a first signal, where the first signal is used to activate or deactivate a first SSB.

[0193] Optionally, the device 400 further includes a receiving module and a processing module.

[0194] In an embodiment of the present application, the sending module sends a first signal, which 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, thereby improving the flexibility of SSB sending and facilitating improving resource utilization.

[0195] Optionally, as an embodiment, the first signal supports repeated transmission, wherein 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 does not reach the maximum number of repeated transmissions; 2) the sending time of the first signal is within the sending time window or during the operation of the timer, and the sending time window and the timer are used to send the first signal; 3) the measurement amount 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; 4) the measurement amount of the first SSB is greater than or not less than the first threshold, wherein the first signal is used to deactivate the first SSB; 5) the device does not receive the feedback signal within the receiving time window of the feedback signal, wherein the feedback signal is used to indicate whether the first signal is successfully received.

[0196] Optionally, as an embodiment, the starting position of the receiving time window is network configured or predefined; or the length of the receiving time window is related to at least one of the following: the length of the RAR time window; the period of the first SSB.

[0197] Optionally, as an embodiment, 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 a beam of the first SSB; or, the beams used for sending the first signal multiple times are the same or different.

[0198] Optionally, as an embodiment, the device 400 further includes a receiving module for receiving a feedback signal, wherein 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 physical layer signaling.

[0199] Optionally, as an embodiment, the sending module 402 is used for at least one of the following: 1) giving priority to the first SSB when the first SSB has been activated or has taken effect; 2) giving priority to the first SSB within a first time range; 3) giving priority to the second SSB for PRACH resource selection when initially transmitting PRACH, the second SSB including a typical SSB; 4) determining whether to give priority to the first SSB based on the measurement amount of the reference signal associated with the first SSB.

[0200] 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.

[0201] Optionally, as an embodiment, the initial transmission PRACH includes at least one of the following: 1) the first PRACH transmission without power boosting; 2) the first PRACH transmission without repeated transmission; 3) the first PRACH transmission among multiple repeated transmissions.

[0202] Optionally, as an embodiment, the sending module 402 is used for at least one of the following: 1) if the number of failures of PRACH transmission on the PRACH resource associated with the first SSB is greater than or not less than the second threshold, switching to selecting the second SSB for PRACH resource selection; 2) if the measurement amount of the reference signal associated with the first SSB cannot meet the first condition, switching to selecting the second SSB; 3) if the measurement amount of the first SSB cannot meet the second condition, switching to selecting the second SSB; 4) if the number of transmissions on the PRACH resource associated with the first SSB reaches 5) if the attempted PRACH transmission is always on the PRACH resource associated with the first SSB, switch to selecting the second SSB; 6) if the number of retransmissions of the first signal is greater than or not less than the fourth threshold, switch to selecting the second SSB, wherein 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.

[0203] Optionally, as an embodiment, the measurement quantity of the first type of SSB cannot meet the second condition, including at least one of the following: the signal strength, signal quality, signal strength function value or signal quality function value of the first type of SSB cannot meet the second condition.

[0204] Optionally, as an embodiment, the first signal is used to activate the first SSB, and the sending module 402 is used to select the first SSB at 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.

[0205] Optionally, as an embodiment, the first signal is used to deactivate the first SSB, and the sending module 402 is used to select the first SSB at at least one of the following times: before sending the first signal; before a first time point, the first time point being located after a third time interval after sending the first signal; before receiving a feedback signal; before a second time point, the second time point being located after a fourth time interval after receiving the feedback signal.

[0206] Optionally, as an embodiment, the feedback signal is used to indicate that the first signal is successfully received.

[0207] Optionally, as an embodiment, the sending module 402 is used to determine the effective time of activation or deactivation of the first SSB based on at least one of the following: resources occupied by the first signal, and indication information carried by the first signal.

[0208] Optionally, as an embodiment, when the first signal is used to activate the first SSB, the timing of sending 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 failed receptions of random access response messages reaches the fifth threshold; 2) the signal strength or quality of the second SSB cannot meet the third condition; 3) the number of transmission attempts on the PRACH resource associated with the second SSB reaches the sixth threshold, and all transmissions fail; 4) 2-step random access is attempted on the PRACH resource associated with the second SSB, and access still fails after falling back 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 sending the first signal is valid; 7) the first signal is repeatedly sent, and the time interval with the last transmission is greater than or not less than the eighth threshold; 8) on the PRACH associated with the second SSB The power of the PRACH signal sent on the resource is greater than or not less than the ninth threshold; 9) The preamble code identifier in the received RAR message is different from the preamble code identifier sent on the PRACH resource associated with the second SSB; 10) The preamble code identifier in the received RAR message is different from the preamble code identifier sent 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; 11) A second signal has been sent, and the second signal is used to activate the signal associated with the first SSB; 12) A demand-based signal is detected; 13) The time interval between the time of sending the deactivation signal for deactivating the first SSB and the current time is greater than or not less than the eleventh threshold; 14) The time length from the start time of the activation of the first SSB reaches the twelfth threshold; wherein, the second SSB includes a typical SSB.

[0209] Optionally, as an embodiment, when the first signal is used to deactivate the first SSB, the timing of sending 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 failed receptions of random access response messages does not reach the fifth threshold; 2) the signal strength or quality of the second SSB can meet the third condition; 3) the number of transmission attempts on the PRACH resource associated with the second SSB does not reach the sixth threshold; 4) 2-step random access is attempted and does not fall back 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 sending the first signal is valid; 7) the first signal is retransmitted, and the time interval with the last transmission is greater than or not less than the eighth threshold; 8) the number of PRACs sent on the PRACH resource associated with the second SSB is less than or not greater than the eighth threshold. The power of the H signal 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 sent on the PRACH resource associated with the second SSB; 10) The preamble identifier in the received RAR message is different from the preamble identifier sent 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; 11) The third signal is not sent or the sending 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 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.

[0210] 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, 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.

[0211] Optionally, as an embodiment, the first SSB includes a demand-based SSB.

[0212] According to the device 400 of the embodiment of the present application, the process of the method 200 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 400 and the above-mentioned other operations and / or functions are respectively for implementing 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 repeated here.

[0213] The SSB activation or deactivation device in the embodiments of the present application can 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 chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0214] FIG5 is a schematic diagram of the structure of an SSB activation or deactivation device according to an embodiment of the present application, which may correspond to the network-side device in other embodiments. As shown in FIG5 , the device 500 includes the following modules.

[0215] The receiving module 502 is used to receive a first signal, where the first signal is used to activate or deactivate a first SSB.

[0216] Optionally, the device 500 further includes a sending module and a processing module.

[0217] In an embodiment of the present application, the device 500 receives a first signal, which 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 to send a signal for deactivating the SSB when the SSB is not needed, thereby improving the flexibility of SSB transmission and facilitating improving resource utilization.

[0218] Optionally, as an embodiment, the first signal supports repeated reception, wherein the conditions for the receiving module 502 to repeatedly receive the first signal include at least one of the following: 1) the number of times the first signal is received does not reach the maximum number of repeated receptions; 2) the reception time of the first signal is within the receiving time window or during the operation of the timer, and the receiving time window and the timer are used to receive the first signal; 3) the device 500 does not send the feedback signal within the sending time window of the feedback signal, wherein the feedback signal is used to indicate whether the first signal is successfully received.

[0219] Optionally, as an embodiment, 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 a beam of the first SSB; or, the beams used for sending the first signal multiple times are the same or different.

[0220] Optionally, as an embodiment, the device 500 further includes a sending module for sending a feedback signal, wherein 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 physical layer signaling.

[0221] 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, 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.

[0222] According to the device 500 of the embodiment of the present application, the process of the method 300 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 500 and the above-mentioned other operations and / or functions are respectively for implementing 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 repeated here.

[0223] The SSB activation or deactivation device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 3 and achieve the same technical effects. To avoid repetition, it will not be repeated here.

[0224] Optionally, as shown in Figure 6, an embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, wherein the memory 602 stores a program or instruction that can be run on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned SSB activation or deactivation method embodiment, and can achieve the same technical effect. When the communication device 600 is a network side device, the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned SSB activation or deactivation method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0225] An embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is configured to send a first signal, wherein the first signal is configured to activate or deactivate a first SSB. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 7 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0226] The terminal 700 includes but is not limited to: 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 at least some of the components of the processor 710.

[0227] Those skilled in the art will appreciate that the terminal 700 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 710 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG7 does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0228] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video 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 a touch panel 7071 and at least one of 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. 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 an operating stick, which will not be repeated here.

[0229] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 701 may transmit the data to the processor 710 for processing. Furthermore, the RF unit 701 may send uplink data to the network-side device. Typically, the RF unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0230] 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, wherein the first storage area may store an operating system, applications 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 a volatile memory or a 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 (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0231] Processor 710 may include one or more processing units. Optionally, processor 710 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0232] 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 the first SSB.

[0233] In an embodiment of the present application, the terminal sends a first signal, which 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, thereby improving the flexibility of SSB transmission and facilitating improving resource utilization.

[0234] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the SSB activation or deactivation method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0235] An embodiment of the present application further provides a network-side device, including a processor and a communication interface, wherein the communication interface is configured to receive a first signal, wherein the first signal is configured to activate or deactivate a first SSB. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0236] The present application also provides a network-side device. As shown in Figure 8, 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. Antenna 81 is connected to radio frequency device 82. In the uplink direction, radio frequency device 82 receives information via antenna 81 and sends the received information to baseband device 83 for processing. In the downlink direction, baseband device 83 processes the information to be transmitted and sends it to radio frequency device 82. Radio frequency device 82 processes the received information and then sends it through antenna 81.

[0237] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83 , which includes a baseband processor.

[0238] The baseband device 83 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 8, 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 to execute the network device operations shown in the above method embodiment.

[0239] The network side device may further include a network interface 86, which is, for example, a Common Public Radio Interface (CPRI).

[0240] The network side device 800 of the embodiment of the present application also includes: instructions or programs stored in the memory 85 and can be run on the processor 84. The processor 84 calls the instructions or programs in the memory 85 to execute the methods executed by each module shown in Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0241] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned SSB activation or deactivation method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0242] The processor is the processor in the terminal described in the above embodiment. 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 disk, or optical disk. In some examples, the readable storage medium can be non-transitory.

[0243] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned SSB activation or deactivation method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0244] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0245] An embodiment of the present application further provides 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 the various processes of the above-mentioned SSB activation or deactivation method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0246] An embodiment of the present application also provides an SSB activation or deactivation system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the SSB activation or deactivation method as described above, and the network side device can be used to execute the steps of the SSB activation or deactivation method as described above.

[0247] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the 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 opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0248] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0249] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for activating or deactivating an SSB, comprising: The terminal sends a first signal, which is used to activate or deactivate a first SSB.

2. The method according to claim 1, wherein: The first signal supports repeated transmission, wherein a condition for the terminal to repeatedly transmit the first signal includes at least one of the following: The number of times the first signal is sent does not reach a maximum number of repeated sending times; The sending time of the first signal is within a sending time window or during the operation of a timer, and the sending time window and the timer are used to send the first signal; The measurement amount 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 amount 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 a receiving 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, wherein: The starting position of the receiving time window is network configured or predefined; or The length of the receiving 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, wherein: 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 a beam of the first SSB; or, The beams used for sending the first signal multiple times are the same or different.

5. The method according to claim 1, wherein: 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; The feedback signal includes at least one of the following: a specific SSB, a response message of the first signal, and physical layer signaling.

6. The method according to any one of claims 1 to 5, wherein: The method further comprises at least one of the following: In a case where the first SSB has been activated or has taken effect, the terminal preferentially selects the first SSB; The terminal preferentially selects the first SSB within a first time range; The terminal preferentially selects a second SSB for PRACH resource selection when initially transmitting the PRACH, where the second SSB includes a typical SSB; The terminal determines whether to prioritize the first SSB based on a measurement amount of a reference signal associated with the first SSB.

7. The method according to claim 6, wherein: 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, wherein: The initial transmission PRACH includes at least one of the following: First PRACH transmission without power boosting; The first PRACH transmission without repeated transmission; The first PRACH transmission among multiple repetitions.

9. The method according to any one of claims 1 to 8, wherein: The method further comprises at least one of the following: If the number of failures of PRACH transmission of the terminal on the PRACH resource associated with the first SSB is greater than or not less than the second threshold, the terminal switches to selecting the second SSB for PRACH resource selection; If the measurement amount of the reference signal associated with the first SSB fails to satisfy the first condition, the terminal switches to selecting the second SSB; If the measurement amount of the first SSB fails to satisfy the second condition, the terminal switches to selecting the second SSB; If the number of transmissions by the terminal on the PRACH resource associated with the first SSB reaches a third threshold, the terminal switches to selecting the second SSB; If the PRACH transmission attempted by the terminal has always been on the PRACH resource associated with the first SSB, the terminal switches to selecting the second SSB; If the number of retransmissions of the first signal is greater than or not less than a fourth threshold, the terminal switches to selecting a second SSB, wherein the first signal is used to activate the first SSB; 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 a second SSB, and the second type of SSB is the first SSB; The second SSB includes a typical SSB.

10. The method according to claim 9, wherein: The first type of SSB measurement quantity cannot satisfy the second condition, including at least one of the following: The signal strength, signal quality, signal strength function value or signal quality function value of the first type of SSB cannot meet the second condition.

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

12. The method according to any one of claims 1 to 10, wherein: The first signal is used to deactivate the first SSB, and the method further includes: the terminal selecting the first SSB at at least one of the following times: Before the terminal sends the first signal; before a first time point, the first time point being located after a third time interval after the terminal sends the first signal; Before the terminal receives the feedback signal; Before the second time point, where the second time point is located after a fourth time interval after the terminal receives the feedback signal.

13. The method according to claim 11 or 12, wherein: 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, wherein: The method further includes: the terminal determining, based on at least one of the following, a time at which the first SSB activation or deactivation takes effect: Resources occupied by the first signal, and indication information carried by the first signal.

15. The method according to any one of claims 1 to 14, wherein: In the case where the first signal is used to activate the first SSB, a timing of sending the first signal includes at least one of the following: The number of random accesses or the number of random access response message reception failures of the terminal on the PRACH associated with the second SSB reaches a fifth threshold; The signal strength or quality of the second SSB cannot satisfy the 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 2-step random access on the PRACH resource associated with the second SSB, and still fails to access after falling back to 4-step random access; The number of times the first signal is sent is less than or not greater than a seventh threshold; The TA sending the first signal is valid; The first signal is sent repeatedly, and the time interval between the first signal and the last signal is greater than or not less than an eighth threshold; The power of the PRACH signal sent 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 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, 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; The terminal has sent a second signal, where the second signal is used to activate a signal associated with the first SSB; The terminal detects a demand-based signal; The time interval between the sending time of the deactivation signal for deactivating the first SSB and the current time is greater than or not less than an eleventh threshold; The time from the activation start time 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, wherein: In the case where the first signal is used to deactivate the first SSB, a timing of sending the first signal includes at least one of the following: The number of random accesses or the number of random access response message reception failures of the terminal on the PRACH associated with the second SSB does not reach a fifth threshold; The signal strength or quality of the second SSB can satisfy the third condition; The number of times the terminal attempts to transmit on the PRACH resource associated with the second SSB does not reach a sixth threshold; The terminal attempted 2-step random access and did not fall back to 4-step random access; The number of times the first signal is sent is less than or not greater than a seventh threshold; The TA sending the first signal is valid; The first signal is resent, and the time interval between the first signal and the last signal is greater than or not less than an 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 a 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 a third signal or a sending condition of the third signal is not satisfied, the third signal being used to activate a demand-based signal associated with the first SSB; The conditions for deactivating the demand-based signal are met; 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 an 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, wherein: 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: 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; Use a different signal configuration.

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

19. A method for activating or deactivating a SSB, comprising: The network side device receives a first signal, which is used to activate or deactivate a first SSB.

20. The method according to claim 19, wherein: The first signal supports repeated reception, wherein a condition for the network side device to repeatedly receive the first signal includes at least one of the following: The number of times the first signal is received does not reach a maximum number of repeated receptions; The receiving time of the first signal is within a receiving time window or during the operation of a timer, and the receiving time window and the timer are used to receive the first signal; The network side device does not send the feedback signal within a sending time window of the feedback signal, wherein the feedback signal is used to indicate whether the first signal is successfully received.

21. The method according to claim 19 or 20, wherein: 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 a beam of the first SSB; or, The beams used for sending the first signal multiple times are the same or different.

22. The method according to claim 19, wherein: 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; The feedback signal includes at least one of the following: a specific SSB, a response message of the first signal, and physical layer signaling.

23. The method according to any one of claims 19 to 22, wherein: 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: 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; Use a different signal configuration.

24. An activation or deactivation device for SSB, comprising: A sending module is used to send a first signal, where the first signal is used to activate or deactivate a first SSB.

25. An activation or deactivation device for SSB, comprising: The receiving module is used to receive a first signal, where the first signal is used to activate or deactivate a first SSB.

26. A terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be 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, comprising a processor and a memory, wherein the memory stores a program or instruction that can be 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 storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the method according to any one of claims 1 to 23.

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