Method for requesting to send downlink information, downlink information sending method, and related device

Abstract

The present application relates to the technical field of communications, and discloses a method for requesting to send downlink information, a downlink information sending method, and a related device. The method for requesting to send downlink information in embodiments of the present application comprises: upon sending a first uplink signal in a first cell, a terminal executes a first operation, the first operation comprising at least one of the following: receiving first downlink information of the first cell, wherein the first downlink information is used for indicating second downlink information of at least one second cell; receiving configuration information of a second uplink signal; measuring a reference signal of the at least one second cell; sending the second uplink signal; and receiving the second downlink information of the at least one second cell, wherein the second uplink signal is used for requesting to acquire the second downlink information, and the first uplink signal is used for at least one of the following: requesting to acquire the second downlink information, and requesting to acquire the configuration information of the second uplink signal.

Description

Methods for requesting downlink information transmission, downlink information transmission methods and related equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510079158.0, filed in China on January 17, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to a method for requesting downlink information transmission, a downlink information transmission method, and related equipment. Background Technology

[0004] With the development of communication technology, the introduction of Network Energy Saving (NES) technology into communication systems can reduce unnecessary uplink or downlink, time domain, frequency domain, or spatial domain transmissions without significantly impacting terminal services or system performance, thus achieving network energy conservation. However, when an NES cell is in energy-saving mode, providing services solely through non-NES cells cannot meet the service quality requirements of all terminals. Therefore, related technologies suffer from the problem of poor terminal service quality due to the introduction of network energy saving technologies. Summary of the Invention

[0005] This application provides a method for requesting downlink information transmission, a downlink information transmission method, and related equipment, which can solve the problem of poor service quality of terminals caused by the introduction of network energy-saving technology.

[0006] Firstly, a method for requesting downlink information transmission is provided, including:

[0007] After the terminal sends a first uplink signal in the first cell, it performs a first operation, which includes at least one of the following:

[0008] Receive first downlink information from a first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell;

[0009] Configuration information for receiving the second uplink signal;

[0010] Measure the reference signal of at least one second cell;

[0011] Send a second uplink signal;

[0012] Receive second downlink information from at least one second cell;

[0013] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0014] Secondly, a downlink information transmission method is provided, including:

[0015] Upon receiving the first uplink signal, the first network-side device executes the second operation;

[0016] Wherein, the first network-side device is the network-side device corresponding to the first cell, and the second operation includes at least one of the following:

[0017] Send first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell;

[0018] Send a first message to the second network-side device corresponding to the second cell, the first message being used to trigger the second network-side device to send the second downlink information of the second cell;

[0019] Configuration information for sending the second uplink signal;

[0020] Receive the second uplink signal;

[0021] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0022] Thirdly, a downlink information transmission method is provided, including:

[0023] The second network-side device receives a first message from the first network-side device corresponding to the first cell. The first message is used to trigger the second network-side device to send the second downlink information of the second cell.

[0024] The second network-side device sends the second downlink information;

[0025] The second network-side device is the network-side device corresponding to the second cell.

[0026] Fourthly, an apparatus for requesting downlink information transmission is provided, comprising:

[0027] The first transmission module is configured to perform a first operation after the first cell transmits a first uplink signal, the first operation including at least one of the following:

[0028] Receive first downlink information from a first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell;

[0029] Configuration information for receiving the second uplink signal;

[0030] Measure the reference signal of at least one second cell;

[0031] Send a second uplink signal;

[0032] Receive second downlink information from at least one second cell;

[0033] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0034] Fifthly, a downlink information transmission device is provided, comprising:

[0035] The second transmission module is used to perform a second operation upon receiving the first uplink signal;

[0036] The second operation includes at least one of the following:

[0037] Send first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell;

[0038] Send a first message to the second network-side device corresponding to the second cell, the first message being used to trigger the second network-side device to send the second downlink information of the second cell;

[0039] Configuration information for sending the second uplink signal;

[0040] Receive the second uplink signal;

[0041] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0042] Sixthly, a downlink information transmission device is provided, comprising:

[0043] The receiving module is used to receive a first message from a first network-side device corresponding to a first cell, wherein the first message is used to trigger a second network-side device to send second downlink information of the second cell.

[0044] The sending module is used to send the second downlink information.

[0045] In a seventh aspect, an apparatus for requesting downlink information transmission is provided, the apparatus being configured to perform the steps of the method described in the first aspect.

[0046] Eighthly, a downlink information transmission apparatus is provided, the apparatus being configured to perform the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0047] In a ninth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0048] In a tenth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is configured to perform a first operation after a first uplink signal is transmitted in a first cell, the first operation including at least one of the following:

[0049] Receive first downlink information from a first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell;

[0050] Configuration information for receiving the second uplink signal;

[0051] Measure the reference signal of at least one second cell;

[0052] Send a second uplink signal;

[0053] Receive second downlink information from at least one second cell;

[0054] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0055] Eleventhly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect, or implementing the steps of the method as described in the third aspect.

[0056] In a twelfth aspect, a network-side device is provided, including a processor and a communication interface, wherein...

[0057] When the network-side device is a first network-side device, the communication interface is used to perform a second operation upon receiving a first uplink signal;

[0058] The second operation includes at least one of the following:

[0059] Send first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell;

[0060] Send a first message to the second network-side device corresponding to the second cell, the first message being used to trigger the second network-side device to send the second downlink information of the second cell;

[0061] Configuration information for sending the second uplink signal;

[0062] Receive the second uplink signal;

[0063] Wherein, the second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, requesting the acquisition of the configuration information of the second uplink signal;

[0064] When the network-side device is a second network-side device, the communication interface is used to receive a first message from the first network-side device corresponding to the first cell, and the first message is used to trigger the second network-side device to send the second downlink information of the second cell;

[0065] Send the second downlink information;

[0066] The second network-side device is the network-side device corresponding to the second cell.

[0067] In a thirteenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0068] In a fourteenth aspect, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method described in the first aspect, and the network-side device is configured to perform the steps of the method described in the second aspect and the steps of the method described in the third aspect.

[0069] In a fifteenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect.

[0070] In a sixteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect.

[0071] In this embodiment, after the terminal sends a first uplink signal in the first cell, it performs a first operation, which includes at least one of the following: receiving first downlink information from the first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell; receiving configuration information for a second uplink signal; measuring a reference signal from at least one second cell; sending a second uplink signal; and receiving second downlink information from at least one second cell. The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information and requesting the acquisition of configuration information for the second uplink signal. Thus, by waking up the second cell using the first uplink signal and / or the second uplink signal, the terminal can perform cell reselection, thereby improving the terminal's service quality. Attached Figure Description

[0072] Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application;

[0073] Figure 2 is a flowchart illustrating a method for requesting downlink information transmission according to an embodiment of this application;

[0074] Figures 3A to 3E are flowchart examples of a method for requesting downlink information transmission provided in an embodiment of this application;

[0075] Figure 4 is a flowchart illustrating a downlink information transmission method provided in an embodiment of this application;

[0076] Figure 5 is a flowchart illustrating another downlink information transmission method provided in an embodiment of this application;

[0077] Figure 6 is a schematic diagram of the structure of an apparatus for requesting downlink information transmission provided in an embodiment of this application;

[0078] Figure 7 is a schematic diagram of a downlink information transmission device provided in an embodiment of this application;

[0079] Figure 8 is a schematic diagram of another downlink information transmission device provided in an embodiment of this application;

[0080] Figure 9 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0081] Figure 10 is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0082] Figure 11 is a schematic diagram of the structure of a network-side device provided in an embodiment of this application;

[0083] Figure 12 is a schematic diagram of another network-side device provided in an embodiment of this application. Detailed Implementation

[0084] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0085] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction 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 required operation or requested result based on the judgment result.

[0086] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0087] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as User Equipment (UE), and can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.Among them, base stations can be referred to as Node B (NB), Evolved Node B (eNB), 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, Transmit / Receive Point (TRP), Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform stations). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to specific technical terms. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0088] The method for sending request downlink information provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0089] Referring to Figure 2, this application embodiment provides a method for requesting downlink information transmission. As shown in Figure 2, the method for requesting downlink information transmission includes:

[0090] Step 201: After the terminal sends the first uplink signal in the first cell, it performs a first operation, which includes at least one of the following:

[0091] Receive first downlink information from a first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell;

[0092] Configuration information for receiving the second uplink signal;

[0093] Measure the reference signal of at least one second cell;

[0094] Send a second uplink signal;

[0095] Receive second downlink information from at least one second cell;

[0096] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0097] In this embodiment, the first uplink signal can be understood as a first wake-up signal (WUS), which can also be called a low-power wake-up signal or a request for on-demand signal. The first downlink information or second downlink information may include downlink channels, downlink signals, and system information. In some embodiments, system information may include system information blocks, such as System Information Block (SIB) 1, SIB2, and SIBX. In some embodiments, downlink signals include a Synchronization Signal and PBCH block (SSB), a Tracking Reference Signal (TRS), and a Channel State Information Reference Signal (CSI-RS), among other downlink reference signals. Downlink channels include the Physical Downlink Control Channel (PDCCH) and the Physical Downlink Shared Channel (PDSCH).

[0098] In some embodiments, the downlink channel or downlink signal may also include system information. Optionally, the downlink channel may include, but is not limited to, the Physical Broadcast Channel (PBCH), and the downlink signal may include, but is not limited to, at least one of the following reference signals: Secondary Synchronization Signal (SSS) and Primary Synchronization Signal (PSS). The reference signal may include the SSB.

[0099] Optionally, in some embodiments, receiving the first downlink information of the first cell can be understood as the terminal indicating the second downlink information of at least one second cell by receiving the first downlink information on the first cell. This allows the terminal to know the relevant information of the second cell in advance, thereby reducing the latency of subsequent cell reselection and improving the service quality of the terminal.

[0100] Optionally, in some embodiments, the configuration information for receiving the second uplink signal can be understood as the terminal receiving the configuration information for the second uplink signal in the first cell, which is used by the terminal to subsequently send the second uplink signal. The second uplink signal can be understood as a second wake-up signal, which can also be called a low-power wake-up signal or an on-demand signal request. In this way, since the terminal receives the configuration information for the second uplink signal, it can send the second uplink signal based on the configuration information to wake up the second cell for sending the second downlink information. This allows the terminal to perform cell reselection evaluation based on the second downlink information and perform cell reselection when conditions are met, thereby improving the terminal's quality of service.

[0101] Optionally, in some embodiments, measuring the reference signal of at least one second cell can be understood as follows: after the terminal sends a first uplink signal in the first cell, it wakes up at least one second cell to send a reference signal. The terminal measures the reference signal of at least one second cell and performs cell reselection evaluation based on the measurement results. If the conditions are met, cell reselection is performed to improve the service quality of the terminal.

[0102] Optionally, in some embodiments, sending a second uplink signal can be understood as the terminal sending a second uplink signal on the first cell. In this way, the second uplink signal can wake up the second cell to send second downlink information, so that the terminal can perform cell reselection evaluation based on the second downlink information and perform cell reselection when the conditions are met, thereby improving the service quality of the terminal.

[0103] Optionally, in some embodiments, receiving second downlink information from at least one second cell can be understood as the terminal receiving second downlink information in at least one second cell. After receiving the second downlink information from the second cell, the terminal can perform cell reselection evaluation based on the second downlink information and perform cell reselection if the conditions are met, thereby improving the terminal's quality of service. For example, in some embodiments, after the first cell sends a first uplink signal, the terminal receives the SSB of at least one second cell or receives the SSB and corresponding SIB1 of at least one second cell.

[0104] Optionally, in some embodiments, the aforementioned at least one second cell may be indicated by the first cell, that is, the first cell may instruct the terminal to measure reference signals or receive second downlink information in one or more second cells. For example, in some embodiments, the indication may be made through first feedback information corresponding to the first uplink signal, or through the configuration of the first uplink signal, or through the configuration of the second uplink signal.

[0105] In this embodiment, after the terminal sends a first uplink signal in the first cell, it performs a first operation, which includes at least one of the following: receiving first downlink information from the first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell; receiving configuration information for a second uplink signal; measuring a reference signal from at least one second cell; sending a second uplink signal; and receiving second downlink information from at least one second cell. The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information and requesting the acquisition of configuration information for the second uplink signal. Thus, by waking up the second cell using the first uplink signal and / or the second uplink signal, the terminal can perform cell reselection, thereby improving the terminal's service quality.

[0106] Optionally, in some embodiments, after measuring the reference signal of at least one second cell, the method further includes:

[0107] The terminal performs a cell reselection evaluation process based on the reference signal measurement results of the at least one second cell.

[0108] In this embodiment, after the terminal sends a first uplink signal in the first cell, it can wake up at least one second cell to send a reference signal. The terminal measures the reference signal of the at least one second cell and performs a cell reselection evaluation process based on the measurement results. This allows for cell reselection based on the evaluation results, thereby improving the terminal's service quality.

[0109] Optionally, in some embodiments, the method further includes:

[0110] If the cell reselection conditions are met, the terminal reselects to the second cell.

[0111] In this embodiment, when the cell reselection conditions are met, the terminal reselects to a second cell, thereby providing services to the terminal through the second cell and improving the service quality of the terminal. The terminal reselecting to the second cell can be understood as the terminal reselecting to one of the at least one second cell.

[0112] Optionally, in some embodiments, the first cell and the second cell are independent cells, or the second cell is a cell within the coverage area of ​​the first cell.

[0113] It should be noted that in some embodiments, the first cell and the second cell are independent cells, meaning that the coverage areas of the first cell and the second cell are independent of each other, or that the first cell and the second cell are not co-located cells.

[0114] Optionally, in some embodiments, the second cell and the first cell can be cells that satisfy certain relative relationships, such as a timing difference of less than a certain value, co-located, or geographical distance of less than a certain value.

[0115] Optionally, in some embodiments, the terminal sending the first uplink signal in the first cell includes:

[0116] If the first condition is met, the terminal sends the first uplink signal in the first cell;

[0117] The first condition includes at least one of the following:

[0118] The measurement result of the first cell is lower than the first threshold value;

[0119] The measurement results of the first cell are within the first interval;

[0120] Within the first time period, the measurement result of the first cell drops to the second threshold value;

[0121] During the second time period, the measurement results of the first cell decreased by the third threshold value;

[0122] The terminal did not detect any synchronization signal block (SSB) in any cell other than the first cell;

[0123] No suitable cell was found.

[0124] The conditions for re-selection of the community are met;

[0125] The measurement result of the first cell is lower than the fourth threshold, and the measurement results of at least some of the at least one second cell are lower than the fifth threshold;

[0126] The measurement results include at least one of the following: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Signal to Interference plus Noise Ratio (SINR).

[0127] In this embodiment of the application, the first interval can be understood as a range interval, the second threshold value can be an absolute value (e.g., a decrease to X1 dB) or a percentage value (e.g., a decrease to X2%). The third threshold value can be an absolute value (e.g., a decrease to X3 dB) or a percentage value (e.g., a decrease to X4%). The requirement to establish a connection can be understood as the requirement to establish a Radio Resource Control (RRC) connection.

[0128] Optionally, the upper limit of the first interval is used to represent the threshold for triggering cell reselection, and the lower limit of the first interval is used to represent the lower limit for ensuring successful transmission of the first uplink signal. By setting the first interval, uplink signal transmission can be performed when cell reselection conditions are met and normal uplink signal transmission is guaranteed. This improves communication reliability.

[0129] It should be noted that meeting the first condition can be understood as the terminal's service quality not meeting the requirements, necessitating cell reselection. When the first condition is met, the terminal sends a first uplink signal in the first cell, which triggers the transmission of reference signals from at least one second cell. This prompts the UE to measure the reference signals from at least one second cell, perform quality assessments on these cells, and, if the conditions are met, execute cell reselection, thereby improving the terminal's service quality.

[0130] It should be understood that at least one of the aforementioned first threshold, second threshold, fourth threshold, and fifth threshold can be agreed upon by the protocol or configured by the network-side device, or indicated in the first feedback information, configured in the first uplink signal configuration, or configured in the second uplink signal, or determined based on the terminal implementation, without further limitations here.

[0131] Optionally, in some embodiments, the method further includes:

[0132] The terminal receives configuration information for the first uplink signal in the first cell;

[0133] The configuration information of the first uplink signal includes at least one of the following:

[0134] System Information Request Resource Configuration (SI-RequestConfig / SI-RequestResources);

[0135] The transmission configuration of the first uplink signal;

[0136] The receiving configuration of the first feedback information corresponding to the first uplink signal;

[0137] First SSB-based Measurement Timing Configuration (SMTC) configuration;

[0138] The community signage for the second community;

[0139] The second SMTC configuration of the second cell;

[0140] Reference signal information for the second cell;

[0141] The reference signal information of the second cell includes at least one of the following: reference signal frequency, reference signal power, reference signal beam power, identifier of the actually transmitted reference signal, number of actually transmitted reference signals, quasi-co-location information of the actually transmitted reference signals, transmission period of the reference signal, transmission period of each reference signal beam, start and end positions of the reference signal transmission window, and duration of the reference signal transmission window.

[0142] Optionally, one or more of the cell identifier of the second cell, the second SMTC configuration of the second cell, and the reference signal information of the second cell can be understood as a set of configuration information for a second cell.

[0143] Optionally, in some embodiments, the transmission configuration of the first uplink signal may include at least one of the following:

[0144] Send resource configurations, such as time-frequency resources and preamble sequence resources;

[0145] First condition (i.e., configuring the relevant threshold values ​​for the first condition, such as the first threshold value, the first interval, or the second threshold value, etc.);

[0146] Maximum number of times the first uplink signal can be sent;

[0147] Power configuration.

[0148] Optionally, in some embodiments, the aforementioned first SMTC configuration can be understood as a common SMTC configuration, and the terminal can measure the reference signal of at least one second cell based on this first SMTC configuration. Further, it can be understood that at least one or more second cells will transmit the corresponding SSB within the SSB measurement window configured in the first SMTC configuration.

[0149] Optionally, in some embodiments, the configuration of the first uplink signal can be indicated by SIB1 or SIBX of the first cell. SIBX can be understood as any SIB other than SIB1, which can be an SIB in the existing protocol or a SIB newly introduced in the 6G standard.

[0150] Optionally, in some embodiments, the first uplink signal is further used to indicate at least one of the following: the location information of the terminal, the speed information of the terminal, and the direction of movement of the terminal.

[0151] Optionally, the first uplink signal may explicitly or implicitly indicate at least one of the following: the terminal's location information, the terminal's speed information, and the terminal's direction of movement. For implicit indication, the first uplink signal may be mapped to at least one of the terminal's location information, speed information, and direction of movement, allowing the first cell to determine these information based on the first uplink signal. Thus, by indicating at least one of the terminal's location information, speed information, and direction of movement through the first uplink signal, the first network-side device of the first cell can better determine and wake up at least one suitable second cell.

[0152] Optionally, in some embodiments, the method further includes:

[0153] The terminal receives the first feedback information corresponding to the first uplink signal;

[0154] The first feedback information includes at least one of the following:

[0155] The on-demand system information (OD-SIB, or OSI for short) of the first cell;

[0156] Rach Access Response (RAR);

[0157] The second downlink information;

[0158] The second downlink information includes at least one of the following: Physical Broadcast Channel (PBCH), System Information Block (SIB), SIB1, Reference Signal, Secondary Synchronization Signal (SSS), and Primary Synchronization Signal (PSS).

[0159] It should be noted that the content of the first feedback information mentioned above can be set according to actual needs. For example, in some embodiments, the first feedback information includes at least one of the following:

[0160] The random access preamble ID (RAPID) corresponding to the first uplink signal;

[0161] Configuration information for the second uplink signal;

[0162] The configuration identifier of the second uplink signal;

[0163] The signage for the second residential area;

[0164] Access or reselection priority of the second cell;

[0165] Frequency priority of the second cell;

[0166] System information block reception configuration for the second cell;

[0167] Configuration for receiving the reference signal in the second cell;

[0168] First SMTC configuration;

[0169] The system information block receiving configuration includes at least one of the following: type 0 physical downlink control channel (PDCCH) configuration, SIB listening window length, and SIB listening start position.

[0170] The reception configuration of the reference signal of the second cell includes at least one of the following: the second SMTC configuration of the second cell, the reference signal frequency, the reference signal power, the reference signal beam power, the identifier of the actually transmitted reference signal, the number of actually transmitted reference signals, the quasi-co-location (QCL) information of the actually transmitted reference signals, the transmission period of the reference signal, the transmission period of each reference signal beam, the start position of the reference signal transmission window, and the duration of the reference signal transmission window.

[0171] It should be noted that in some embodiments, the content of the first feedback information may be the same as or different from the content received by the first operation. If the content of the first feedback information is the same as the content received by the first operation, it can be applied to the information content received later.

[0172] Optionally, in some embodiments, one or more of the cell identifier of the second cell, the access or reselection priority of the second cell, the frequency priority of the second cell, the system information block reception configuration of the second cell, and the reference signal reception configuration of the second cell can be regarded as a set of configurations for a certain second cell.

[0173] In this embodiment of the application, the configuration of the second uplink signal may include at least one of the following:

[0174] Send resource configurations, such as time-frequency resources and preamble sequence resources;

[0175] The second condition (i.e., the relevant threshold value for configuring the second condition, such as the transmission threshold value) can also be called the transmission condition for the second uplink signal;

[0176] The receiving configuration of the second feedback information corresponding to the second uplink signal;

[0177] Power configuration.

[0178] Optionally, the configuration identifier of the second uplink signal is used to indicate one of multiple predefined configurations.

[0179] Optionally, in some embodiments, the starting position of the SIB's listening can be determined based on a reference point. For example, the listening window can be started at a time X time units after the reference point.

[0180] In some embodiments, the actual transmitted reference signal identifier can be an explicit identifier (ID) or a bitmap.

[0181] Optionally, in some embodiments, the method further includes at least one of the following:

[0182] If the first feedback information includes the second downlink information, the terminal determines whether the second cell meets the cell reselection conditions or is a suitable cell based on the second downlink information, and if the second cell meets the cell reselection conditions, the terminal performs cell reselection.

[0183] When the first feedback information carries the first information, the terminal receives the second downlink information of the second cell, where the first information is the reception configuration or scheduling information of the second downlink information.

[0184] In this embodiment of the application, the terminal can perform the above-mentioned actions based on the first feedback information. For example, it can receive the second downlink information, determine whether the second cell is a suitable cell based on the measurement results of the second downlink information, and determine whether the cell reselection conditions are met. If the cell reselection conditions are met, the terminal can perform cell reselection to reselect to the second cell, thereby improving the service quality of the terminal.

[0185] Optionally, in some embodiments, the terminal receiving the second downlink information from the second cell includes at least one of the following:

[0186] If the resource indicated by the first information is the resource of the first cell, the terminal receives the second downlink information of the second cell from the first cell;

[0187] If the resource indicated by the first information is the resource of the second cell, the terminal receives the second downlink information of the second cell from the second cell.

[0188] In this embodiment of the application, the resource indicated by the above-mentioned receiving configuration or scheduling information can be understood or replaced as the location indicated by the receiving configuration or scheduling information. That is, when the location indicated by the receiving configuration or scheduling information of the second downlink information of the second cell is the location of the first cell, the terminal receives the second downlink information of the second cell from the first cell.

[0189] When the location indicated by the receiving configuration or scheduling information of the second downlink information of the second cell is the location of the second cell, the terminal receives the second downlink information of the second cell from the second cell.

[0190] Optionally, in some embodiments, the starting position for measuring the reference signal of the second cell is determined based on at least one of the following:

[0191] The first moment is X time units apart from the second moment, where X is an integer, and the second moment is the time when the first uplink signal was sent.

[0192] The time when the first timer expires, the start time of the first timer is the second time, and the duration of the first timer is A time units;

[0193] The third time point is Y time units apart from the fourth time point, where Y is an integer, and the fourth time point is the time when the first feedback information corresponding to the first uplink signal is received;

[0194] The fifth moment is the start time of the receiving window for the first feedback information corresponding to the first uplink signal;

[0195] The sixth time point is the end time of the receiving window for the first feedback information corresponding to the first uplink signal;

[0196] The seventh time point is P time units apart from the fifth time point, where P is an integer;

[0197] The eighth time point is Q time units away from the sixth time point, where Q is an integer.

[0198] Wherein, at least one of X, Y, P, Q, and A is determined based on any one of the following:

[0199] The first feedback information corresponding to the first uplink signal;

[0200] Configuration information of the first uplink signal;

[0201] Configuration information for the second uplink signal;

[0202] System messages from the first cell;

[0203] The reference signal of the second cell;

[0204] The agreement was agreed upon in advance.

[0205] In the embodiments of this application, the time unit mentioned above may include, but is not limited to, any of the following: frame, subframe, half-frame, millisecond (ms), time slot.

[0206] It should be noted that the method for determining the starting position of the reference signal for measuring the second cell can be set according to actual needs. For example, in some embodiments, the starting position of the reference signal for measuring the second cell can be the first time, the time when the first timer expires, the third time, the fifth time, the sixth time, the seventh time, or the eighth time. It can also be the start or end time of the time unit containing the first time, the time when the first timer expires, the third time, the fifth time, the sixth time, the seventh time, or the eighth time. Furthermore, it can be the earliest or latest time among at least two of the first time, the time when the first timer expires, the third time, the fifth time, the sixth time, the seventh time, and the eighth time.

[0207] Optionally, in some embodiments, measuring the reference signal of at least one second cell includes:

[0208] The reference signal of the second cell is measured based on the second SMTC configuration of the second cell;

[0209] The reference signal of the second cell is measured based on the first SMTC configuration.

[0210] In this embodiment of the application, the second SMTC configuration of the second cell can be understood as the SMTC configuration dedicated to the second cell.

[0211] Optionally, in some embodiments, the length of the measurement window for the reference signal of the second cell is determined by at least one of the following:

[0212] The agreement stipulates;

[0213] The first feedback information corresponding to the first uplink signal;

[0214] Configuration information of the first uplink signal;

[0215] Configuration information for the second uplink signal;

[0216] OSI of the first cell;

[0217] System messages from the first cell;

[0218] System messages from the second cell;

[0219] The agreement was agreed upon in advance.

[0220] Optionally, in some embodiments, before the terminal measures the reference signal of at least one of the second cells, the method further includes at least one of the following:

[0221] The terminal assumes that the reference signal of the second cell is transmitted periodically;

[0222] The terminal assumes that the reference signal of the second cell will be periodically transmitted before the terminal sends the deactivation command, and the deactivation command is used to instruct the second cell to stop transmitting the reference signal;

[0223] The terminal assumes that the period of the reference signal of the second cell within the first window is the first period;

[0224] The terminal assumes that the period of the reference signal of the second cell within the first window is the first period, and the period of the reference signal of the second cell after the end of the first window is the second period.

[0225] The terminal assumes that the period of the reference signal of the second cell within the first window is the first period, and the period of the reference signal of the second cell within the second window is the second period, and the start time of the second window is the end time of the first window.

[0226] Optionally, in some embodiments, the starting time of the first window is the starting position for measuring the reference signal of the second cell;

[0227] The end time of the first window is determined based on any one of the following: the time when the second downlink information is received; the fourth time; the sixth time; the seventh time; or the eighth time.

[0228] It should be noted that when the start time and end time of the first window are determined based on the same time, the start time of the first window can be the start time of a time unit containing a certain time, and the end time of the first window can be the end time of that time unit; or, the start time of the first window can be a certain time, and the end time of the first window can be a time corresponding to at least one time unit offset after that time.

[0229] Optionally, in some embodiments, after the terminal measures the reference signal of the at least one second cell, the method further includes:

[0230] The terminal sends a second uplink signal in the first cell;

[0231] The terminal receives the second downlink information from the second cell and camps on the second cell;

[0232] If the terminal does not receive the reference signal from the second cell during the first time period, the terminal re-determines whether the first condition is met.

[0233] If the first condition is met, the terminal retransmits the first uplink signal.

[0234] In this embodiment of the application, if the terminal does not receive the reference signal of the second cell in the first time period, it can be understood that the reference signal of the second cell changes from periodic transmission to no transmission. At this time, the terminal needs to re-evaluate the first condition for transmitting the first uplink signal.

[0235] Optionally, in some embodiments, after sending the second uplink signal, the method further includes at least one of the following:

[0236] The terminal receives SIB1 from a third cell, wherein the third cell is one of the at least one second cell;

[0237] The terminal receives SIB1 of all second cells associated with the first cell;

[0238] The terminal performs cell reselection.

[0239] Optionally, in some embodiments, after the terminal sends the second uplink signal, the method further includes:

[0240] The terminal listens to the second downlink information sent by the second cell;

[0241] The start time of the second downlink information monitoring is determined based on at least one of the following:

[0242] The transmission time of the second uplink signal;

[0243] The timing of receiving the second feedback information corresponding to the second uplink signal;

[0244] The start or end position of the receiving window for the second feedback information corresponding to the second uplink signal;

[0245] The PBCH reception or decoding time of the second cell.

[0246] In this embodiment of the application, when the start time for listening to the second downlink information is determined based on the transmission time of the second uplink signal, the second downlink information can be started listening to M units after the second uplink signal is transmitted; alternatively, a timer can be started after the second uplink signal is transmitted, and the second downlink information can be started listening to when the timer expires.

[0247] In cases where the start time for listening to the second downlink information is determined based on the time of receiving the second feedback information corresponding to the second uplink signal, listening to the second downlink information can begin N units after receiving the second feedback information corresponding to the second uplink signal; alternatively, a timer can be started after receiving the second feedback information corresponding to the second uplink signal, and listening to the second downlink information can begin after the timer expires.

[0248] In cases where the start time of listening to the second downlink information is determined based on the start or end position of the receiving window of the second feedback information corresponding to the second uplink signal, listening to the second downlink information can begin in A units after the start or end position of the receiving window of the second feedback information corresponding to the second uplink signal.

[0249] If the start time of the second downlink information is determined based on the PBCH reception time or decoding time of the second cell, the second downlink information can be monitored starting L units after the PBCH reception time or decoding time of the second cell.

[0250] Optionally, in some embodiments, the first uplink signal or the second uplink signal includes at least one of the following:

[0251] Message 1 (Message 1, Msg1);

[0252] Message 3: Physical Uplink Shared Channel (PUSCH);

[0253] Physical random access channel.

[0254] It should be noted that the system information, SIB1 and SIB mentioned in the embodiments of this application can be uniformly referred to as SIB, and SIB1 is an example of SIB; SIB can be one or more of SIB1-SIBX, or a combination of more of them; the reference signal may include SSB.

[0255] The cell mentioned in this application embodiment can be replaced by carrier, carrier group, serving cell, bandwidth part (BWP), TRP, bandwidth (band), or subband, etc.

[0256] To better understand this application, the following examples will be used to illustrate it in detail.

[0257] Example 1: The NES cell (i.e., the second cell) is in deep sleep (not transmitting SSB / SIB1). The terminal first sends WUS1 (i.e., the first uplink signal) to request the first cell to wake up the SSBs of the surrounding NES cell base stations (i.e., the second network-side equipment), and then sends WUS2 (i.e., the second uplink signal) to request the target NES cell to transmit SIB1. The transmission conditions for WUS1 are: the RSRP of the first cell is below a certain value, the terminal wants to initiate connection establishment, and no other cell's SSB is detected, there are no other suitable cells, and the RSRP of the first cell drops by X3 dB within a certain period. The transmission conditions for WUS2 can refer to the design of related technologies (such as R19). The specific interaction process is shown in Figure 3A, including the following steps:

[0258] Step 31: The terminal obtains the first uplink signal configuration in the first cell. The first uplink signal configuration is the WUS1 configuration sent by the NES cell SSB to wake up the NES cell.

[0259] Step 32: The terminal sends WUS1 when the conditions for sending WUS1 are met (the RSRP of the first cell is lower than a certain value, there is no cell that meets the reselection condition in intra-frequency or inter-frequency measurement, the terminal wants to initiate connection establishment, and no SSB of other cells can be detected, and there is no cell to reselect or select).

[0260] Optionally, WUS1 carries the terminal's location information, speed information, etc. (so that the first cell can identify which potential NES cells it wants to wake up later).

[0261] Step 33: The terminal receives the first feedback information (i.e., the feedback for WUS1).

[0262] Step 34: Based on the measurement results, the terminal sends WUS2 (i.e., the second uplink signal) to request SIB1 of the target NES cell;

[0263] Step 35: The terminal receives NES cell SIB1.

[0264] In the scheme of this application embodiment: after the terminal completes the WUS1 transmission in the first cell, it remains camped in the first cell and continues to perform SSB measurements on potential NES cells (the second cell) in the first cell. In related technologies, the WUS configuration used to request SIB1 is approximately over one hundred bits. To save the broadcast overhead of SIBX in the first cell, WUS2config (WUS2 configuration) can be delayed in its initial broadcast. When the first cell receives a UE request to wake up the NES cell using WUS1, WUS2config is then broadcast. WUS2 is used to trigger the OD-SIB1 transmission of the potential NES cell.

[0265] The WUS2 configuration (second uplink signal configuration) used to request OD-SIB1 transmission can be indicated in the following ways:

[0266] Carried by SIB1 in the first cell, it has been broadcasting continuously;

[0267] Carried by the SIBX of the first cell, it is in 'non-broadcasting' state by default. In the non-broadcasting state, the terminal sends an OSI (WUS1) request to the SIBX; or it is always in 'broadcasting' state.

[0268] The feedback from the first cell indicates, for example, the ID of some predefined WUS configuration;

[0269] The NES cell's Master Information Block (MIB) indicates this.

[0270] The terminal obtains information such as the potential NES cell ID and the corresponding SSB frequency point location through at least one of the following methods:

[0271] The broadcast has been continuously initiated by SIB1 in the first cell.

[0272] As indicated by the SIBX of the first cell, when the UE receives the WUS2 config, the WUS2 config naturally contains the corresponding cell ID and the corresponding SSB frequency point location;

[0273] WUS feedback indication;

[0274] The NES cell that WUS2 wakes up can only be one of the potential NES cells indicated by the network side.

[0275] The behavior of the NES cell in this application and related technologies differs from that in related technologies. In this embodiment, after receiving the wake-up instruction from the first cell, the NES cell first sends an SSB. If it does not receive WUS2 within a certain time, it stops sending an SSB.

[0276] WUS1 may not be a cell-specific resource; it can be a common resource used to request the transmission of SSBs by an NES cell. It is not specific to any cell and is only used by the terminal to express its expectation of cell reselection.

[0277] In the above scenario, the terminal obtains information about the potential NES cell in at least one of the following ways:

[0278] Method 1 (Static): The UE is configured according to WUS1 or WUS2. The WUS configuration contains information about one or more potential NES cells that are about to be successfully woken up, including the SSB frequency point, cell ID and other necessary information.

[0279] Method 2 (Dynamic): The RAR (First Feedback Information) indicates the information of the potential NES cell (including the SSB frequency point, cell ID, and other necessary information). In order to avoid the impact on the interpretation of the RAR by the legacy UE, the RAR can be scheduled by the Physical Downlink Control Channel (PDCCH) scrambled with the new Radio Network Temporary Identifier (RNTI), or the WUS occasion and the legacy RACH occasion do not overlap, that is, the legacy UE will not listen to the RAR.

[0280] Method 3 (Semi-static): The WUS configuration includes information on all potential NES cells that may be woken up (including SSB frequency, cell ID, and other necessary information). The RAR (First Feedback Information) dynamically indicates which potential NES cells will be woken up (this involves modifying the RAR, which can be scheduled by a PDCCH scrambled by a new RNTI, or the WUS occasion and legacy RACH occasion do not overlap, i.e., the legacy UE will not listen to the RAR). For example, it may indicate the NES cell ID, the NES cell subset ID, the NES cell group ID, the WUS configuration ID, etc.

[0281] In this embodiment, WUS1 requests the transmission of WUS config2 and the SSB measurement of the NES cell, which allows the NES cell to enter deep sleep, and the network-side device can obtain a relatively large energy saving gain.

[0282] Example 2: The NES cell is in deep sleep (no SSB / SIB transmission). The terminal first sends WUS1 (i.e., the first uplink signal) to request the NES cell to send a light SSB (such as PSS and SSS), and then sends WUS2 (i.e., the second uplink signal) to request the NES cell to send a normal SSB and SIB1. The specific interaction process is shown in Figure 3A.

[0283] In some embodiments, if WUS1 requests the PSS and SSS of the NES cell first, it means that the PBCH of the NES cell is requested by WUS2 subsequently.

[0284] In some embodiments, if both PBCH and OD-SIB1 are triggered by WUS2, including the following cases:

[0285] Scenario 1: The UE sends WUS2. The UE first receives PBCH, and then listens to OD-SIB1 based on the SIB1 configuration in PBCH.

[0286] Scenario 2: The UE sends WUS2 and can directly receive OD-SIB1, where the configuration of OD-SIB1 is included in the configuration of WUS2.

[0287] The configuration of WUS2 may include at least one of the following:

[0288] The conditions for sending WUS2 (i.e., the conditions for requesting PBCH and OD-SIB1 from the NES cell);

[0289] Receive WUS2 feedback configuration, such as PBCH or RAR;

[0290] The time point at which the PBCH is received can be associated with at least one of the following: the time when WUS2 is sent, the time when WUS2 feedback is received, or the start or end position of the WUS2 feedback time window.

[0291] The time point at which OD-SIB1 is received can be associated with at least one of the following: the time when WUS2 is sent, the time when WUS2 feedback is received, the start or end position of the WUS2 feedback time window, or the PBCH reception or decoding time.

[0292] In some embodiments, PBCH can be triggered by WUS2 first, and then OD-SIB1 can be triggered by WUS3. In this case, the steps after the UE sends WUS2 are as follows:

[0293] Receive WUS feedback, which carries the frequency points of the PSS / SSB of the possible NES cell;

[0294] The UE needs to detect the PSS at each frequency point of the synchronization signal frequency grid indicated by the WUS feedback. At each frequency point, the terminal needs to blindly detect the Network Identifier (NID)2, search for the OFDM symbol boundary of the PSS, and perform initial frequency offset correction.

[0295] Demodulate the SSS to obtain NID 1. Based on NID 1 and NID 2, obtain the Physical Cell Identifier (PCI). Based on the PCI, determine the position of the Packet Notification Channel (PNCH) Demodulation Reference Signal (DMRS). Demodulate the PBCH DMRS to obtain the SSB index and n_hf (first half frame / second half frame). Decode the PBCH to obtain the MIB.

[0296] Send WUS3 again to request OD-SIB1 from the NES cell, receive WUS feedback, and receive OD-SIB1.

[0297] Optionally, after the terminal resides in the NES cell, SIB1 can transmit for a period of time.

[0298] Optionally, after receiving the trigger request from the first cell, the NES cell's SSB transmission rule can be any of the following:

[0299] After being triggered, it keeps sending SSBs;

[0300] The base station queries the idle UE; if no idle UE responds, it stops transmitting SSB.

[0301] By default, the base station continuously transmits SSBs. After receiving a deactivation request from the UE, the base station stops transmitting SSBs.

[0302] In the first window, a 20ms periodic SSB is sent to the UE for measurement. In the second window, it is sent at a 160ms period (or continuously). The switching time (i.e., reference point) between the two windows includes: using the SSB1 sending time as the switching time between the two windows or using the RAR receiving time as the switching time.

[0303] Optionally, after the terminal camps on the NES cell, it continuously measures the SSB. If it suddenly finds that the SSB cannot be detected, the legacy procedure is for the UE to look for another cell. In this embodiment of the application, the procedure can be to resend the WUS to request the transmission of the SSB.

[0304] Example 3: NES cell in deep sleep (no SSB / SIB transmission). The UE sends a WUS request to the NES cell to transmit SSB and SIB1 in the first cell. The specific interaction process is shown in Figure 3B, including the following steps:

[0305] Step 31: The UE obtains the first configuration in the first cell. The first configuration is the WUS configuration sent by the NES cell SSB and SIB1 to wake up the NES cell.

[0306] Step 32: The UE sends WUS when the conditions for sending WUS are met (the RSRP of the first cell is lower than a certain value, the UE wants to initiate connection establishment (i.e., it has the need to establish connection), and no SSB of other cells can be detected, and there is no cell to reselect or select, and the RSRP of the first cell drops by X3dB within a certain period of time).

[0307] Optionally, the WUS carries the terminal's location information, speed information, etc. (so that the first cell can identify which potential NES cells it wants to wake up later).

[0308] Step 33: The terminal receives the first feedback information (i.e., the WUS response).

[0309] Step 34, terminal measurement of NES cell;

[0310] Step 35: The terminal performs cell reselection if the cell reselection conditions are met.

[0311] In this embodiment of the application, the UE can obtain the WUS configuration through the SIBX of the first cell or the SIB1 of the first cell.

[0312] Example 4: The terminal sends an OSI request in the first cell to wake up the NES cell SSB for transmission. The specific interaction process is shown in Figure 3C, including the following steps:

[0313] Step 31: The terminal obtains the scheduling information of the request OSI Y in the first cell (the scheduling information of the request OSI Y is the configuration of the first uplink signal). The OSI Y contains the NES cell ID and SSB frequency point related information of multiple potential NES cells, as well as the WUS2 configuration of the subsequent terminal request SIB1.

[0314] Step 32: Under the first condition (when the RSRP of the first cell is lower than a certain value, the UE wants to initiate connection establishment, and no SSB of other cells can be detected, and there is no cell to reselect or select, the RSRP of the first cell drops by X3dB in a short time), the terminal sends an OSI Y SI request.

[0315] Optionally, the preamble of the OSI Y SI request (i.e., the first uplink signal) is mapped to the terminal's location information, speed information, etc., so that the first cell can determine which potential NES cells it wants to wake up later.

[0316] Step 33: The terminal receives the first feedback information (i.e., the response for OSI Y request).

[0317] Step 34: The terminal measures the SSB of the NES cell based on the information provided by OSI Y (such as the frequency point and cell ID of the NES cell).

[0318] Step 35: If the conditions are met, the terminal sends a WUS2 request to the target NES cell's SIB1 transmission based on the WUS2 config contained in OSI Y.

[0319] Optionally, in the traditional OSI request mechanism, the UE sending an SI request is a UE implementation and no conditions are designed for requesting OSI. However, in the embodiments of this application, the terminal will only request OSI Y if certain conditions are met.

[0320] Optionally, in this embodiment of the application, after the UE receives the feedback from OSI Y, it should not only receive OSI Y, but also measure the SSB of the potential NES cell based on the information contained in OSI Y.

[0321] Optionally, in this embodiment of the application, the WUS2config that wakes up the NES cell can be included in OSI Y.

[0322] Optionally, regarding the behavior of the base station, after receiving the OSI Y request, the base station not only needs to send OSI Y, but also needs to wake up the SSB of the corresponding NES cell to send it.

[0323] Example 5: The terminal sends an OSI request in the first cell to wake up the NES cell SSB and SIB1. The specific interaction process is shown in Figure 3D, including the following steps:

[0324] Step 31: The terminal obtains the scheduling information of OSI Y in the first cell. OSI Y contains the NES cell ID and SSB frequency point related information of multiple potential NES cells.

[0325] Step 32: Under the first condition (when the RSRP of the first cell is lower than a certain value, the UE wants to initiate connection establishment, and no SSB of other cells can be detected, and there is no cell to reselect or select, the RSRP of the first cell drops by X3dB in a short period of time), the terminal sends an OSI Y SI request.

[0326] Optionally, the OSI Y SI request preamble is mapped to the UE's location information, speed information, etc., so that the first cell can determine which potential NES cells it wants to wake up later;

[0327] Step 33: The terminal receives the first feedback information (i.e., response for OSI Y request);

[0328] Step 34: The terminal measures the NES cell SSB based on the information provided by OSI Y (such as the frequency point and cell ID of the NES cell), receives SIB1, and further determines whether to allow camping.

[0329] Step 35: If the cell reselection conditions are met, the terminal performs cell reselection.

[0330] It should be noted that in Embodiments 1 and 2, if the WUS configuration is valid after the UE receives the WUS configuration, then when it wants to wake up the NES cell again, it can directly send WUS2 without needing to receive the WUS2 configuration again. That is, Embodiments 1 and 2 decouple the sending of the request to wake up the NES cell (i.e., sending WUS1) from the receiving of the WUS2 configuration. However, for Embodiments 4 and 5, the two functions of sending WUS1 and receiving the WUS2 configuration are bound together.

[0331] Example 6: The terminal wakes up the NES cell based on a measurement event reporting request.

[0332] Optionally, when the terminal is in RRC_IDLE state, the terminal's measurement configuration is primarily obtained through system information broadcasts. Specifically, the system will send measurement parameters via the following SIB messages:

[0333] SIB3: Distribute measurement information for neighboring cells at the same frequency.

[0334] SIB4: Send out inter-frequency neighbor cell measurement information.

[0335] SIB5: Distribute UMTS (Universal Terrestrial Radio Access Network) neighbor cell information.

[0336] SIB6: Distribute neighbor cell information to GSM / EDGE Radio Access Network (GERAN).

[0337] SIB7: Distribute Code Division Multiple Access (CDMA) 2000 neighbor cell information.

[0338] SIB8: Send CDMA2000 High Rate Packet Data (HRPD) or 1x Radio Transmission Technology (1xRTT) neighbor cell information.

[0339] The aforementioned system information includes a neighboring cell list and related measurement parameters. The UE obtains the measurement configuration and performs cell reselection by receiving this system information. In RRC_IDLE state, the UE does not report measurement results, but only performs cell reselection.

[0340] In this embodiment, measurement events are configured for idle UEs, but the UE can report measurement events under certain conditions. The measurement configuration of the NES cell in the first cell is semi-static. The UE's behavior is as follows: before receiving an instruction from the network-side device, the UE does not measure the reference signal of the NES cell. When the UE meets the conditions for waking up the NES cell, it reports a measurement event, requesting the first cell to wake up the NES cell. Only after the UE receives feedback from the network-side device, such as an ACK for the measurement reporting event, does it begin detecting the SSB of these NES cells.

[0341] It should be understood that, in this embodiment, the measurement configuration information related to the potential NES cell can be placed in the existing SIB3-SIB8, and the process of the terminal requesting to wake up the potential NES cells in the first cell can be based on the measurement reporting framework. The measurement configuration of the NES cell is semi-statically configured by the first cell, and the idle UE does not need to perform measurements on the NES cell before activating the measurement configuration.

[0342] Optionally, after receiving the neighbor cell measurement configuration, the legacy idle UE performs continuous measurement of the neighbor cell. However, in this embodiment, the measurement of the neighbor cell of the NES cell by the idle UE is conditionally triggered. Originally, the idle UE did not need to report the measurement event after measuring the neighbor cell. In this embodiment, the idle UE reports the measurement event to trigger the SSB measurement of the neighbor cell NES cell when the conditions are met.

[0343] Example 7: WUS configuration assigns all candidate NES cell frequency points. For example, in a WUS configuration, the relevant information of the candidate NES cell, including frequency point and cell ID, is assigned. However, the UE does not measure these NES cells. It waits until it receives the RAR from the WUS before starting to measure the SSB of the candidate NES cell.

[0344] Optionally, the WUS configuration includes a semi-static configuration of multiple potential NES cell IDs and their corresponding measurement configurations. The network-side device sends a first feedback message (such as an uplink WUS response) to activate these measurement configurations, and the UE performs measurements on the potential NES cells based on these configurations. When a network-side activation indication is received, measurements can be performed only within a specific time window. The specific interaction process is shown in Figure 3E, including the following steps:

[0345] Step 31: The terminal obtains the WUS configuration in the first cell. The WUS configuration is used to wake up the NES cell SSB and SIB1 to send the WUS configuration. At the same time, the WUS configuration also contains the measurement configuration of the potential NES cell (SSB frequency point, period, etc.).

[0346] Step 32: The terminal sends WUS when the conditions for sending WUS are met (the RSRP of the first cell is lower than a certain value, the UE wants to initiate a connection establishment (RRC connection), and no SSB of other cells is detected, and there is no cell to reselect or select).

[0347] Optionally, the WUS carries the terminal's location information, speed information, etc. (so that the first cell can determine which potential NES cells it wants to wake up later).

[0348] Step 33: The terminal receives the first feedback information (response for WUS);

[0349] Step 34, terminal measurement of NES cell;

[0350] Step 35: The terminal performs cell reselection if the conditions are met.

[0351] Optionally, the terminal's behavior is to perform inter-frequency or intra-frequency SSB measurements within a window after WUS. The terminal can perform measurements based on the second SMTC window of the NES cell, or based on the first SMTC window. Measurements can be performed continuously, or only B SMTC windows can be measured. The B is agreed upon in advance by the protocol, configured by the first uplink signal, or indicated by the first feedback information.

[0352] Example 8: The terminal triggers different subsequent actions and behaviors based on the content of the first feedback information (such as WUS1 feedback).

[0353] Optionally, if the first feedback information is the SIB of one or more second cells, the UE determines, based on the received information, whether the one or more second cells are suitable cells and whether the cell reselection conditions are met. If the cell reselection conditions are met, the UE performs cell reselection.

[0354] Optionally, if the first feedback information is the reception configuration (or scheduling information) of SIB1 of the second cell. In some implementations, if the resource / location indicated by the scheduling information of SIB1 is the current cell (i.e., the first cell), the UE receives the SIB1 of the second cell from the current cell; if the resource / location indicated by the scheduling information of SIB1 is the resource / location of the second cell, the UE receives the SIB1 of the second cell from the second cell.

[0355] This application embodiment also provides a downlink information transmission method, as shown in Figure 4, the downlink information transmission method includes:

[0356] Step 401: If the first network-side device receives the first uplink signal, it performs the second operation.

[0357] Wherein, the first network-side device is the network-side device corresponding to the first cell, and the second operation includes at least one of the following:

[0358] Send first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell;

[0359] Send a first message to the second network-side device corresponding to the second cell, the first message being used to trigger the second network-side device to send the second downlink information of the second cell;

[0360] Configuration information for sending the second uplink signal;

[0361] Receive the second uplink signal;

[0362] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0363] Optionally, the first cell and the second cell are independent cells, or the second cell is a cell within the coverage area of ​​the first cell.

[0364] Optionally, the method further includes:

[0365] The first network-side device receives a second message from the second network-side device, the second message including at least one of the following:

[0366] The transmission period of the reference signal;

[0367] The frequency of the reference signal;

[0368] The index of the reference signal actually transmitted;

[0369] The actual number of reference signals transmitted;

[0370] The transmission period of each reference signal beam.

[0371] Optionally, the method further includes:

[0372] The first network-side device sends the configuration information of the first uplink signal to the terminal;

[0373] The configuration information of the first uplink signal includes at least one of the following:

[0374] System information request resource configuration;

[0375] The transmission configuration of the first uplink signal;

[0376] The receiving configuration of the first feedback information corresponding to the first uplink signal;

[0377] First SSB measurement configuration SMTC configuration;

[0378] The community signage for the second community;

[0379] The second SMTC configuration of the second cell;

[0380] Reference signal information for the second cell;

[0381] The reference signal information of the second cell includes at least one of the following: reference signal frequency, reference signal power, reference signal beam power, identifier of the actually transmitted reference signal, number of actually transmitted reference signals, quasi-co-location information of the actually transmitted reference signals, transmission period of the reference signal, transmission period of each reference signal beam, start and end positions of the reference signal transmission window, and duration of the reference signal transmission window.

[0382] Optionally, the first uplink signal is also used to indicate at least one of the following: the terminal's location information, the terminal's speed information, and the terminal's direction of movement.

[0383] Optionally, the method further includes:

[0384] The first network-side device sends the first feedback information corresponding to the first uplink signal to the terminal;

[0385] The first feedback information includes at least one of the following:

[0386] On-Demand System Information (OD-SIB) of the first cell;

[0387] Random Access Feedback (RAR);

[0388] The second downlink information;

[0389] The second downlink information includes at least one of the following: Physical Broadcast Channel (PBCH), System Information Block (SIB), SIB1, Reference Signal, Secondary Synchronization Signal (SSS), and Primary Synchronization Signal (PSS).

[0390] Optionally, the first feedback information includes at least one of the following:

[0391] The random access preamble identifier (RAPID) corresponding to the first uplink signal;

[0392] Configuration information for the second uplink signal;

[0393] The configuration identifier of the second uplink signal;

[0394] The signage for the second residential area;

[0395] Access or reselection priority of the second cell;

[0396] Frequency priority of the second cell;

[0397] System information block reception configuration for the second cell;

[0398] Configuration for receiving the reference signal in the second cell;

[0399] First SMTC configuration;

[0400] The system information block receiving configuration includes at least one of the following: type 0 physical downlink control channel (PDCCH) configuration, SIB listening window length, and SIB listening start position.

[0401] The reception configuration of the reference signal of the second cell includes at least one of the following: the second SMTC configuration of the second cell, the reference signal frequency, the reference signal power, the reference signal beam power, the identifier of the actually transmitted reference signal, the number of actually transmitted reference signals, the quasi-co-location information of the actually transmitted reference signals, the transmission period of the reference signal, the transmission period of each reference signal beam, the start position of the reference signal transmission window, and the duration of the reference signal transmission window.

[0402] Optionally, the first feedback information carries the reception configuration or scheduling information of the second downlink information of the second cell.

[0403] This application embodiment also provides a downlink information transmission method, as shown in Figure 5, the downlink information transmission method includes:

[0404] Step 501: The second network-side device receives a first message from the first network-side device corresponding to the first cell. The first message is used to trigger the second network-side device to send the second downlink information of the second cell.

[0405] Step 502, the second network-side device sends the second downlink information;

[0406] The second network-side device is the network-side device corresponding to the second cell.

[0407] Optionally, the method further includes:

[0408] The second network-side device sends a second message to the first network-side device, wherein the second message includes at least one of the following:

[0409] The transmission period of the reference signal;

[0410] The frequency of the reference signal;

[0411] The index of the reference signal actually transmitted;

[0412] The actual number of reference signals transmitted;

[0413] The transmission period of each reference signal beam.

[0414] Optionally, the first cell and the second cell are independent cells, or the second cell is a cell within the coverage area of ​​the first cell.

[0415] Optionally, after the second network-side device sends the second downlink information, the method further includes:

[0416] The second network-side device starts the second timer;

[0417] If the second network-side device does not receive the second uplink signal during the operation of the second timer, the second network-side device stops sending the second downlink information. The second uplink signal is used to request the acquisition of the second downlink information.

[0418] Optionally, the second network-side device sending the second downlink information includes:

[0419] The second network-side device periodically sends the second downlink information.

[0420] The method for requesting downlink information transmission provided in this application can be executed by an apparatus for requesting downlink information transmission. This application uses an apparatus for requesting downlink information transmission executing the method as an example to illustrate the apparatus for requesting downlink information transmission provided in this application.

[0421] The downlink information transmission method provided in this application can be executed by a downlink information transmission device. This application uses the example of a downlink information transmission device executing the downlink information transmission method to illustrate the downlink information transmission device provided in this application.

[0422] This application provides an apparatus for requesting downlink information transmission or a downlink information transmission apparatus. As an example, the apparatus for requesting downlink information transmission or the downlink information transmission apparatus may be a communication device or a component in a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0423] The device requesting downlink information transmission or the downlink information transmission device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include a general-purpose processor, a special-purpose processor, such as a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), an Artificial Intelligence (AI) processor, a Graphics Processing Unit (GPU), an Application Specific Integrated Circuit (ASIC), a Network Processor (NP), a Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving module and the transmitting module can be implemented by a communication interface, which can include one or more of the following: a transceiver, pins, circuits, a bus, and a radio frequency unit.

[0424] Specifically, referring to Figure 6, the device 600 for requesting downlink information transmission includes:

[0425] The first transmission module 601 is configured to perform a first operation after the first cell transmits a first uplink signal, the first operation including at least one of the following:

[0426] Receive first downlink information from a first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell;

[0427] Configuration information for receiving the second uplink signal;

[0428] Measure the reference signal of at least one second cell;

[0429] Send a second uplink signal;

[0430] Receive second downlink information from at least one second cell;

[0431] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0432] Optionally, the first transmission module 601 is further configured to:

[0433] The cell reselection evaluation process is performed based on the reference signal measurement results of the at least one second cell.

[0434] Optionally, the first transmission module 601 is further configured to:

[0435] If the cell reselection conditions are met, the cell will be reselected to the second cell.

[0436] Optionally, the first transmission module 601 is specifically used to: when a first condition is met, the terminal transmits the first uplink signal in the first cell;

[0437] The first condition includes at least one of the following:

[0438] The measurement result of the first cell is lower than the first threshold value;

[0439] The measurement results of the first cell are within the first interval;

[0440] Within the first time period, the measurement result of the first cell drops to the second threshold value;

[0441] During the second time period, the measurement results of the first cell decreased by the third threshold value;

[0442] The terminal did not detect any synchronization signal block (SSB) in any cell other than the first cell;

[0443] No suitable residential area was found.

[0444] The conditions for re-selection of the community are met;

[0445] The measurement result of the first cell is lower than the fourth threshold, and the measurement results of at least some of the at least one second cell are lower than the fifth threshold;

[0446] The measurement results include at least one of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), and signal-to-interference-noise ratio (SINR).

[0447] Optionally, the first transmission module 601 is further configured to receive configuration information of the first uplink signal in the first cell;

[0448] The configuration information of the first uplink signal includes at least one of the following:

[0449] System information request resource configuration;

[0450] The transmission configuration of the first uplink signal;

[0451] The receiving configuration of the first feedback information corresponding to the first uplink signal;

[0452] First SSB measurement configuration SMTC configuration;

[0453] The community signage for the second community;

[0454] The second SMTC configuration of the second cell;

[0455] Reference signal information for the second cell;

[0456] The reference signal information of the second cell includes at least one of the following: reference signal frequency, reference signal power, reference signal beam power, identifier of the actually transmitted reference signal, number of actually transmitted reference signals, quasi-co-location information of the actually transmitted reference signals, transmission period of the reference signal, transmission period of each reference signal beam, start and end positions of the reference signal transmission window, and duration of the reference signal transmission window.

[0457] Optionally, the first uplink signal is also used to indicate at least one of the following: the location information of the terminal, the speed information of the terminal, and the direction of movement of the terminal.

[0458] Optionally, the first transmission module 601 is further configured to receive first feedback information corresponding to the first uplink signal;

[0459] The first feedback information includes at least one of the following:

[0460] On-Demand System Information (OD-SIB) of the first cell;

[0461] Random Access Feedback (RAR);

[0462] The second downlink information;

[0463] The second downlink information includes at least one of the following: Physical Broadcast Channel (PBCH), System Information Block (SIB), SIB1, Reference Signal, Secondary Synchronization Signal (SSS), and Primary Synchronization Signal (PSS).

[0464] Optionally, the first feedback information includes at least one of the following:

[0465] The random access preamble identifier (RAPID) corresponding to the first uplink signal;

[0466] Configuration information for the second uplink signal;

[0467] The configuration identifier of the second uplink signal;

[0468] The signage for the second residential area;

[0469] Access or reselection priority of the second cell;

[0470] Frequency priority of the second cell;

[0471] System information block reception configuration for the second cell;

[0472] Configuration for receiving the reference signal in the second cell;

[0473] First SMTC configuration;

[0474] The system information block receiving configuration includes at least one of the following: type 0 physical downlink control channel (PDCCH) configuration, SIB listening window length, and SIB listening start position.

[0475] The reception configuration of the reference signal of the second cell includes at least one of the following: the second SMTC configuration of the second cell, the reference signal frequency, the reference signal power, the reference signal beam power, the identifier of the actually transmitted reference signal, the number of actually transmitted reference signals, the quasi-co-location information of the actually transmitted reference signals, the transmission period of the reference signal, the transmission period of each reference signal beam, the start position of the reference signal transmission window, and the duration of the reference signal transmission window.

[0476] Optionally, the first transmission module 601 is further configured to perform at least one of the following:

[0477] If the first feedback information includes the second downlink information, the terminal determines whether the second cell meets the cell reselection conditions or is a suitable cell based on the second downlink information, and if the second cell meets the cell reselection conditions, the terminal performs cell reselection.

[0478] When the first feedback information carries the first information, the terminal receives the second downlink information of the second cell, where the first information is the reception configuration or scheduling information of the second downlink information.

[0479] Optionally, the first transmission module 601 is specifically configured to perform at least one of the following:

[0480] If the resource indicated by the first information is the resource of the first cell, the second downlink information of the second cell is received from the first cell, and the first information is the reception configuration or scheduling information of the second downlink information;

[0481] If the resource indicated by the first information is the resource of the second cell, the second downlink information of the second cell is received from the second cell.

[0482] Optionally, the starting position for measuring the reference signal of the second cell is determined based on at least one of the following:

[0483] The first moment is X time units apart from the second moment, where X is an integer, and the second moment is the time when the first uplink signal was sent.

[0484] The time when the first timer expires, the start time of the first timer is the second time, and the duration of the first timer is A time units;

[0485] The third time point is Y time units apart from the fourth time point, where Y is an integer, and the fourth time point is the time when the first feedback information corresponding to the first uplink signal is received;

[0486] The fifth moment is the start time of the receiving window for the first feedback information corresponding to the first uplink signal;

[0487] The sixth time point is the end time of the receiving window for the first feedback information corresponding to the first uplink signal;

[0488] The seventh time point is P time units apart from the fifth time point, where P is an integer;

[0489] The eighth time point is Q time units away from the sixth time point, where Q is an integer.

[0490] Wherein, at least one of X, Y, P, Q, and A is determined based on any one of the following:

[0491] The first feedback information corresponding to the first uplink signal;

[0492] Configuration information of the first uplink signal;

[0493] Configuration information for the second uplink signal;

[0494] System messages from the first cell;

[0495] The reference signal of the second cell;

[0496] The agreement was agreed upon in advance.

[0497] Optionally, the measurement of the reference signal of at least one second cell includes:

[0498] The reference signal of the second cell is measured based on the second SMTC configuration of the second cell;

[0499] The reference signal of the second cell is measured based on the first SMTC configuration.

[0500] Optionally, the length of the measurement window for the reference signal of the second cell is determined by at least one of the following:

[0501] The agreement stipulates;

[0502] The first feedback information corresponding to the first uplink signal;

[0503] Configuration information of the first uplink signal;

[0504] Configuration information for the second uplink signal;

[0505] OSI of the first cell;

[0506] System messages from the first cell;

[0507] System messages from the second cell;

[0508] The agreement was agreed upon in advance.

[0509] Optionally, the first transmission module 601 is further configured to perform at least one of the following:

[0510] Assume that the reference signal of the second cell is transmitted periodically;

[0511] Assuming that the reference signal of the second cell is periodically transmitted before the terminal sends the deactivation command, the deactivation command is used to instruct the second cell to stop transmitting the reference signal;

[0512] Assume that the period of the reference signal of the second cell within the first window is the first period;

[0513] Assume that the period of the reference signal of the second cell within the first window is the first period, and the period of the reference signal of the second cell after the end of the first window is the second period.

[0514] Assume that the period of the reference signal of the second cell within the first window is the first period, the period of the reference signal of the second cell within the second window is the second period, and the start time of the second window is the end time of the first window.

[0515] Optionally, the starting time of the first window is the starting position for measuring the reference signal of the second cell;

[0516] The end time of the first window is determined based on any one of the following: the time when the second downlink information is received; the fourth time; the sixth time; the seventh time; or the eighth time.

[0517] Optionally, the first transmission module 601 is further configured to:

[0518] Send a second uplink signal in the first cell;

[0519] Receives the second downlink information from the second cell and camps on the second cell;

[0520] If no reference signal from the second cell is received during the first time period, the first condition is re-evaluated to determine whether it is met.

[0521] If the first condition is met, the first uplink signal is retransmitted.

[0522] Optionally, the first transmission module 601 is further configured to perform at least one of the following:

[0523] Receive SIB1 from a third cell, wherein the third cell is one of the at least one second cell;

[0524] Receive SIB1 of all second cells associated with the first cell;

[0525] Perform cell reselection.

[0526] Optionally, the first transmission module 601 is further configured to: monitor the second downlink information sent by the second cell;

[0527] The start time of the second downlink information monitoring is determined based on at least one of the following:

[0528] The transmission time of the second uplink signal;

[0529] The timing of receiving the second feedback information corresponding to the second uplink signal;

[0530] The start or end position of the receiving window for the second feedback information corresponding to the second uplink signal;

[0531] The PBCH reception or decoding time of the second cell.

[0532] Optionally, the first uplink signal or the second uplink signal includes at least one of the following:

[0533] Message 1;

[0534] Message 3: Physical Uplink Shared Channel (PUSCH);

[0535] Physical random access channel.

[0536] Specifically, referring to Figure 7, the downlink information transmission device 700 includes:

[0537] The second transmission module 701 is used to perform a second operation upon receiving the first uplink signal;

[0538] The second operation includes at least one of the following:

[0539] Send first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell;

[0540] Send a first message to the second network-side device corresponding to the second cell, the first message being used to trigger the second network-side device to send the second downlink information of the second cell;

[0541] Configuration information for sending the second uplink signal;

[0542] Receive the second uplink signal;

[0543] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0544] Optionally, the first cell and the second cell are independent cells, or the second cell is a cell within the coverage area of ​​the first cell.

[0545] Optionally, the second transmission module 701 is further configured to receive a second message from the second network-side device, the second message including at least one of the following:

[0546] The transmission period of the second downlink information;

[0547] The frequency point of the second downlink information;

[0548] The index of the actual second downlink message sent;

[0549] The actual number of second downlink messages sent;

[0550] The transmission cycle of each second downlink information beam.

[0551] Optionally, the second transmission module 701 is further configured to send configuration information of the first uplink signal to the terminal;

[0552] The configuration information of the first uplink signal includes at least one of the following:

[0553] System information request resource configuration;

[0554] The transmission configuration of the first uplink signal;

[0555] The receiving configuration of the first feedback information corresponding to the first uplink signal;

[0556] First SSB measurement configuration SMTC configuration;

[0557] The community signage for the second community;

[0558] The second SMTC configuration of the second cell;

[0559] Reference signal information for the second cell;

[0560] The reference signal information of the second cell includes at least one of the following: reference signal frequency, reference signal power, reference signal beam power, identifier of the actually transmitted reference signal, number of actually transmitted reference signals, quasi-co-location information of the actually transmitted reference signals, transmission period of the reference signal, transmission period of each reference signal beam, start and end positions of the reference signal transmission window, and duration of the reference signal transmission window.

[0561] Optionally, the first uplink signal is also used to indicate at least one of the following: the terminal's location information, the terminal's speed information, and the terminal's direction of movement.

[0562] Optionally, the second transmission module 701 is further configured to send the first feedback information corresponding to the first uplink signal to the terminal;

[0563] The first feedback information includes at least one of the following:

[0564] On-Demand System Information (OD-SIB) of the first cell;

[0565] Random Access Feedback (RAR);

[0566] The second downlink information;

[0567] The second downlink information includes at least one of the following: Physical Broadcast Channel (PBCH), System Information Block (SIB), SIB1, Reference Signal, Secondary Synchronization Signal (SSS), and Primary Synchronization Signal (PSS).

[0568] Optionally, the first feedback information includes at least one of the following:

[0569] The random access preamble identifier (RAPID) corresponding to the first uplink signal;

[0570] Configuration information for the second uplink signal;

[0571] The configuration identifier of the second uplink signal;

[0572] The signage for the second residential area;

[0573] Access or reselection priority of the second cell;

[0574] Frequency priority of the second cell;

[0575] System information block reception configuration for the second cell;

[0576] Configuration for receiving the reference signal in the second cell;

[0577] First SMTC configuration;

[0578] The system information block receiving configuration includes at least one of the following: type 0 physical downlink control channel (PDCCH) configuration, SIB listening window length, and SIB listening start position.

[0579] The reception configuration of the reference signal of the second cell includes at least one of the following: the second SMTC configuration of the second cell, the reference signal frequency, the reference signal power, the reference signal beam power, the identifier of the actually transmitted reference signal, the number of actually transmitted reference signals, the quasi-co-location information of the actually transmitted reference signals, the transmission period of the reference signal, the transmission period of each reference signal beam, the start position of the reference signal transmission window, and the duration of the reference signal transmission window.

[0580] Optionally, the first feedback information carries the reception configuration or scheduling information of the second downlink information of the second cell.

[0581] Specifically, referring to Figure 8, the downlink information transmitting device 800 includes:

[0582] The receiving module 801 is used to receive a first message from the first network-side device corresponding to the first cell, and the first message is used to trigger the second network-side device to send the second downlink information of the second cell.

[0583] The sending module 802 is used to send the second downlink information.

[0584] Optionally, the sending module 802 is further configured to send a second message to the first network-side device, wherein the second message includes at least one of the following:

[0585] The transmission period of the reference signal;

[0586] The frequency of the reference signal;

[0587] The index of the reference signal actually transmitted;

[0588] The actual number of reference signals transmitted;

[0589] The transmission period of each reference signal beam.

[0590] Optionally, the first cell and the second cell are independent cells, or the second cell is a cell within the coverage area of ​​the first cell.

[0591] Optionally, the sending module 802 is further configured to: start a second timer;

[0592] If the second network-side device does not receive the second uplink signal during the operation of the second timer, it stops sending the second downlink information. The second uplink signal is used to request the acquisition of the second downlink information.

[0593] Optionally, the sending module 802 is specifically used to periodically send the second downlink information.

[0594] The device for requesting downlink information transmission and the downlink information transmission device provided in this application embodiment can implement the various processes implemented in the method embodiments of Figures 2 to 5 and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0595] As shown in Figure 9, this application embodiment also provides a communication device 900, including a processor 901 and a memory 902. The memory 902 stores programs or instructions that can run on the processor 901. For example, when the communication device 900 is a terminal, the program or instructions executed by the processor 901 implement the various steps of the above-described downlink information transmission method embodiment and achieve the same technical effect. When the communication device 900 is a network-side device, the program or instructions executed by the processor 901 implement the various steps of the above-described method embodiment for requesting downlink information transmission and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0596] This application also provides a terminal, including 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 in the method embodiment shown in FIG2. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the device for requesting downlink information transmission shown in FIG6. Specifically, FIG10 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0597] The terminal 1000 includes, but is not limited to, at least some of the following components: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0598] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 1010 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 10 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0599] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processor 10041 and a microphone 10042. The graphics processor 10041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0600] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network-side device. Typically, the radio frequency unit 1001 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0601] The memory 1009 can be used to store software programs or instructions, as well as various data. The memory 1009 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1009 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0602] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into the processor 1010.

[0603] The radio frequency unit 1001 is configured to perform a first operation after the first cell transmits a first uplink signal, the first operation including at least one of the following:

[0604] Receive first downlink information from a first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell;

[0605] Configuration information for receiving the second uplink signal;

[0606] Measure the reference signal of at least one second cell;

[0607] Send a second uplink signal;

[0608] Receive second downlink information from at least one second cell;

[0609] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0610] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the terminal side method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0611] This application also provides a network-side device, including a processor and a communication interface. 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 embodiment shown in FIG4 or FIG5. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0612] Specifically, this application embodiment also provides a network-side device, which can be the downlink information transmitting device shown in FIG7. As shown in FIG11, the network-side device 1100 includes: an antenna 1101, a radio frequency device 1102, a baseband device 1103, a processor 1104, and a memory 1105. The antenna 1101 is connected to the radio frequency device 1102. In the uplink direction, the radio frequency device 1102 receives information through the antenna 1101 and sends the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information to be transmitted and sends it to the radio frequency device 1102. The radio frequency device 1102 processes the received information and transmits it through the antenna 1101.

[0613] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1103, which includes a baseband processor.

[0614] The baseband device 1103 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG11. One of the chips is, for example, a baseband processor, which is connected to the memory 1105 via a bus interface to call the program or instructions in the memory 115 to execute the network-side device operation shown in the above method embodiment.

[0615] The network-side device may also include a network interface 1106, such as a Common Public Radio Interface (CPRI).

[0616] The radio frequency device 1102 is used to perform a second operation upon receiving a first uplink signal;

[0617] The second operation includes at least one of the following:

[0618] Send first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell;

[0619] Send a first message to the second network-side device corresponding to the second cell, the first message being used to trigger the second network-side device to send the second downlink information of the second cell;

[0620] Configuration information for sending the second uplink signal;

[0621] Receive the second uplink signal;

[0622] The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

[0623] In addition, the network-side device 1100 of this application embodiment also includes: a program or instructions stored in the memory 1105 and executable on the processor 1104. The processor 1104 calls the program or instructions in the memory 1105 to execute the methods executed by each module shown in FIG7 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0624] Specifically, this application also provides a network-side device. As shown in FIG12, the network-side device 1200 includes a processor 1201, a network interface 1202, and a memory 1203. The network-side device may be the downlink information transmission device shown in FIG8. The network interface 1202 is, for example, a Common Public Radio Interface (CPRI).

[0625] The network interface 1202 is used to receive a first message from the first network-side device corresponding to the first cell, and the first message is used to trigger the second network-side device to send the second downlink information of the second cell; and to send the second downlink information.

[0626] In addition, the network-side device 1200 of this application embodiment also includes: a program or instructions stored in the memory 1203 and executable on the processor 1201. The processor 1201 calls the program or instructions in the memory 1203 to execute the methods executed by each module shown in FIG5 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0627] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described method for requesting downlink information transmission or the embodiments of the downlink information transmission method, and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0628] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. 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 may be a non-transient readable storage medium.

[0629] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described method for requesting downlink information transmission or the embodiment of the downlink information transmission method, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0630] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0631] This application also provides a computer program / program product, which includes computer instructions. The computer program / program product is executed by at least one processor to implement the various processes of the above-described method for requesting downlink information transmission or the embodiments of the downlink information transmission method, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0632] This application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method for requesting downlink information transmission as described above, and the network-side device can be used to perform the steps of the downlink information transmission method as described above.

[0633] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0634] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0635] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for requesting downlink information transmission, comprising: After the terminal sends a first uplink signal in the first cell, it performs a first operation, which includes at least one of the following: Receive first downlink information from a first cell, wherein the first downlink information is used to indicate second downlink information from at least one second cell; Configuration information for receiving the second uplink signal; Measure the reference signal of at least one second cell; Send a second uplink signal; Receive second downlink information from at least one second cell; The second uplink signal is used to request the acquisition of the second downlink information, and the first uplink signal is used for at least one of the following: requesting the acquisition of the second downlink information, and requesting the acquisition of the configuration information of the second uplink signal.

2. The method of claim 1, wherein, After measuring the reference signal of at least one second cell, the method further includes: The terminal performs a cell reselection evaluation process based on the reference signal measurement results of the at least one second cell.

3. The method according to claim 2, further comprising: If the cell reselection conditions are met, the terminal reselects to the second cell.

4. The method according to any one of claims 1 to 3, wherein, The first cell and the second cell are independent cells, or the second cell is a cell within the coverage area of ​​the first cell.

5. The method according to any one of claims 1 to 4, wherein, The terminal sending the first uplink signal in the first cell includes: If the first condition is met, the terminal sends the first uplink signal in the first cell; The first condition includes at least one of the following: The measurement result of the first cell is lower than the first threshold value; The measurement results of the first cell are within the first interval; Within the first time period, the measurement result of the first cell drops to the second threshold value; During the second time period, the measurement results of the first cell decreased by the third threshold value; The terminal has a connection establishment requirement; The terminal did not detect any synchronization signal block (SSB) in any cell other than the first cell; No suitable residential area was found. The conditions for re-selection of the community are met; The measurement result of the first cell is lower than the fourth threshold, and the measurement results of at least some of the at least one second cell are lower than the fifth threshold; The measurement results include at least one of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), and signal-to-interference-noise ratio (SINR).

6. The method according to any one of claims 1 to 5, wherein the method further comprises: The terminal receives configuration information for the first uplink signal in the first cell; The configuration information of the first uplink signal includes at least one of the following: System information request resource configuration; The transmission configuration of the first uplink signal; The receiving configuration of the first feedback information corresponding to the first uplink signal; First SSB measurement configuration SMTC configuration; The community signage for the second community; The second SMTC configuration of the second cell; Reference signal information for the second cell; The reference signal information of the second cell includes at least one of the following: reference signal frequency, reference signal power, reference signal beam power, identifier of the actually transmitted reference signal, number of actually transmitted reference signals, quasi-co-location information of the actually transmitted reference signals, transmission period of the reference signal, transmission period of each reference signal beam, start and end positions of the reference signal transmission window, and duration of the reference signal transmission window.

7. The method according to any one of claims 1 to 6, wherein, The first uplink signal is also used to indicate at least one of the following: the location information of the terminal, the speed information of the terminal, and the direction of movement of the terminal.

8. The method according to any one of claims 1 to 7, wherein the method further comprises: The terminal receives the first feedback information corresponding to the first uplink signal; The first feedback information includes at least one of the following: On-Demand System Information (OD-SIB) of the first cell; Random Access Feedback (RAR); The second downlink information; The second downlink information includes at least one of the following: Physical Broadcast Channel (PBCH), System Information Block (SIB), SIB1, Reference Signal, Secondary Synchronization Signal (SSS), and Primary Synchronization Signal (PSS).

9. The method of claim 8, wherein, The first feedback information includes at least one of the following: The random access preamble identifier (RAPID) corresponding to the first uplink signal; Configuration information for the second uplink signal; The configuration identifier of the second uplink signal; The community signage for the second community; The access or reselection priority of the second cell; Frequency priority of the second cell; The system information block receiving configuration of the second cell; The configuration for receiving the reference signal of the second cell; First SMTC configuration; The system information block receiving configuration includes at least one of the following: type 0 physical downlink control channel (PDCCH) configuration, SIB listening window length, and SIB listening start position. The reference signal reception configuration of the second cell includes at least one of the following: the second SMTC configuration of the second cell, reference signal frequency, reference signal power, reference signal beam power, identifier of the actually transmitted reference signal, number of actually transmitted reference signals, quasi-co-location information of the actually transmitted reference signals, transmission period of the reference signal, transmission period of each reference signal beam, start position of the reference signal transmission window, and duration of the reference signal transmission window.

10. The method according to claim 8 or 9, further comprising at least one of the following: If the first feedback information includes the second downlink information, the terminal determines whether the second cell meets the cell reselection conditions or is a suitable cell based on the second downlink information, and if the second cell meets the cell reselection conditions, the terminal performs cell reselection. When the first feedback information carries the first information, the terminal receives the second downlink information of the second cell, where the first information is the reception configuration or scheduling information of the second downlink information.

11. The method of claim 10, wherein, The terminal receiving the second downlink information from the second cell includes at least one of the following: In a case where the resource indicated by the first information is a resource of the first cell, the terminal receives second downlink information of the second cell from the first cell; In a case where the resource indicated by the first information is a resource of the second cell, the terminal receives second downlink information of the second cell from the second cell.

12. The method according to any one of claims 1 to 11, wherein, A starting position of the measurement of the reference signal of the second cell is determined based on at least one of the following: a first time point, the first time point is spaced apart from a second time point by X time units, X is an integer, and the second time point is a time point of sending the first uplink signal; a time point at which a first timer expires, a starting time point of the first timer being the second time point, and a time length of the first timer being A time units; a third time point, the third time point being spaced apart from a fourth time point by Y time units, Y being an integer, and the fourth time point being a time point of receiving first feedback information corresponding to the first uplink signal; a fifth time point, the fifth time point being a starting time point of a receiving window of the first feedback information corresponding to the first uplink signal; a sixth time point, the sixth time point being an ending time point of the receiving window of the first feedback information corresponding to the first uplink signal; a seventh time point, the seventh time point being spaced apart from the fifth time point by P time units, P being an integer; an eighth time point, the eighth time point being spaced apart from the sixth time point by Q time units, Q being an integer; wherein at least one of the X, the Y, the P, the Q, and the A is determined based on any one of the following: the first feedback information corresponding to the first uplink signal; configuration information of the first uplink signal; configuration information of the second uplink signal; a system message of the first cell; a reference signal of the second cell; a protocol agreement.

13. The method according to any one of claims 1 to 12, wherein, The measurement of the reference signal of the at least one second cell comprises: measuring the reference signal of the second cell based on a second SMTC configuration of the second cell; measuring the reference signal of the second cell based on a first SMTC configuration.

14. The method according to any one of claims 1 to 13, wherein, A length of a measurement window of the reference signal of the second cell is determined based on at least one of the following: a protocol agreement; the first feedback information corresponding to the first uplink signal; configuration information of the first uplink signal; configuration information of the second uplink signal; an OSI of the first cell; a system message of the first cell; a system message of the second cell; a protocol agreement.

15. The method according to any one of claims 1 to 14, wherein, Before the terminal measures the reference signal of the at least one second cell, the method further comprises at least one of the following: the terminal assumes that the reference signal of the second cell is periodically sent; the terminal assumes that, before the terminal sends a deactivation command for instructing the second cell to stop sending the reference signal, the reference signal of the second cell will be periodically sent; the terminal assumes that, within a first window, a period of the reference signal of the second cell is a first period; the terminal assumes that, within the first window, the period of the reference signal of the second cell is the first period, and after an ending time point of the first window, the period of the reference signal of the second cell is a second period; The terminal assumes that a period of the reference signal of the second cell in the first window is a first period, and a period of the reference signal of the second cell in a second window is a second period, and a starting time of the second window is an ending time of the first window.

16. The method of claim 15, wherein, A starting time of the first window is a starting position of measuring the reference signal of the second cell. An ending time of the first window is determined based on any one of the following: a time of receiving the second downlink information; a fourth time; a sixth time; a seventh time; and an eighth time.

17. The method of any one of claims 1 to 16, wherein, After the terminal measures the reference signal of the at least one second cell, the method further includes: The terminal sends the second uplink signal in the first cell; The terminal receives second downlink information of the at least one second cell and camps on the second cell; In a case where the terminal does not receive the reference signal of the at least one second cell in a first time period, the terminal re-determines whether the first condition is met; In a case where the first condition is met, the terminal re-sends the first uplink signal.

18. The method of any one of claims 1 to 17, wherein, After the terminal sends the second uplink signal, the method further includes at least one of the following: The terminal receives SIB1 of a third cell, the third cell being one of the at least one second cell; The terminal receives SIB1 of all second cells associated with the first cell; The terminal performs cell reselection.

19. The method of any one of claims 1 to 18, wherein, After the terminal sends the second uplink signal, the method further includes: The terminal listens to the second downlink information sent by the second cell; The starting listening time of the second downlink information is determined based on at least one of the following: A sending time of the second uplink signal; A receiving time of second feedback information corresponding to the second uplink signal; A starting position or an ending position of a receiving window of the second feedback information; A PBCH receiving time or decoding time of the second cell.

20. The method of any one of claims 1 to 19, wherein, The first uplink signal or the second uplink signal is at least one of the following: Message 1; Preamble; Message 3 physical uplink shared channel (PUSCH); Physical random access channel.

21. A downlink information sending method, comprising: In a case where a first network side device receives a first uplink signal, performing a second operation; The first network side device is a network side device corresponding to a first cell, and the second operation includes at least one of the following: Sending first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell; Sending a first message to a second network side device corresponding to a second cell, the first message being used to trigger the second network side device to send the second downlink information of the second cell; Sending configuration information of a second uplink signal; Receiving the second uplink signal; The second uplink signal is used to request to obtain the second downlink information, and the first uplink signal is used to at least one of the following: request to obtain the second downlink information, and request to obtain the configuration information of the second uplink signal.

22. The method of claim 21, further comprising: The first network-side device receives a second message from the second network-side device, and the second message includes at least one of the following: a transmission period of the reference signal; a frequency point of the reference signal; an index of the actually transmitted reference signal; a quantity of the actually transmitted reference signal; a transmission period of each reference signal beam.

23. The method of claim 22, further comprising: The first network-side device sends configuration information of the first uplink signal to the terminal; wherein the configuration information of the first uplink signal includes at least one of the following: system information request resource configuration; transmission configuration of the first uplink signal; reception configuration of the first feedback information corresponding to the first uplink signal; first SSB measurement configuration (SMTC) configuration; cell identity of the second cell; second SMTC configuration of the second cell; reference signal information of the second cell; wherein the reference signal information of the second cell includes at least one of the following: reference signal frequency point, reference signal power, reference signal beam power, actual transmitted reference signal identity, actual transmitted reference signal quantity, actual transmitted reference signal quasi co-location information, reference signal transmission period, transmission period of each reference signal beam, starting position and ending position of reference signal transmission window, and time length of the reference signal transmission window.

24. The method of any one of claims 21 to 23, wherein, The first uplink signal is further used to indicate at least one of the following: terminal position information, terminal speed information, and terminal moving direction.

25. The method of any one of claims 21 to 24, further comprising: The first network-side device sends the first feedback information corresponding to the first uplink signal to the terminal; wherein the first feedback information includes at least one of the following: on-demand system information (OD-SIB) of the first cell; random access feedback (RAR); second downlink information; wherein the second downlink information includes at least one of the following: physical broadcast channel (PBCH), system information block (SIB), SIB1, reference signal, secondary synchronization signal (SSS), and primary synchronization signal (PSS).

26. The method of claim 25, wherein, The first feedback information includes at least one of the following: random access preamble identifier (RAPID) corresponding to the first uplink signal; configuration information of the second uplink signal; configuration identity of the second uplink signal; cell identity of the second cell; access or reselection priority of the second cell; frequency priority of the second cell; system information block reception configuration of the second cell; reception configuration of the reference signal of the second cell; first SMTC configuration; wherein the system information block reception configuration includes at least one of the following: type 0 physical downlink control channel (PDCCH) configuration, SIB monitoring window length, and SIB monitoring starting position. The receiving configuration of the reference signal of the second cell comprises at least one of the following: a second SMTC configuration of the second cell, a reference signal frequency point, a reference signal power, a reference signal beam power, an identity of an actually transmitted reference signal, a number of actually transmitted reference signals, quasi co-location information of the actually transmitted reference signals, a transmission period of the reference signal, a transmission period of each reference signal beam, a starting position of a reference signal transmission window, and a time length of the reference signal transmission window.

27. The method of claim 26, wherein, The first feedback information carries receiving configuration or scheduling information of the second downlink information of the second cell.

28. A downlink information transmission method, comprising: receiving, by a second network side device, a first message from a first network side device corresponding to a first cell, the first message being used to trigger the second network side device to transmit second downlink information of a second cell; transmitting, by the second network side device, the second downlink information; wherein the second network side device is a network side device corresponding to the second cell.

29. The method of claim 28, further comprising: transmitting, by the second network side device, a second message to the first network side device, wherein the second message comprises at least one of the following: a transmission period of the reference signal; a frequency point of the reference signal; an index of an actually transmitted reference signal; a number of actually transmitted reference signals; a transmission period of each reference signal beam.

30. The method of claim 28 or 29, wherein, After the second network side device transmits the second downlink information, the method further comprises: starting, by the second network side device, a second timer; stopping, by the second network side device, transmitting the second downlink information in a case that the second network side device does not receive a second uplink signal during running of the second timer, the second uplink signal being used to request acquisition of the second downlink information.

31. The method of any one of claims 28 to 30, wherein, The second network side device transmitting the second downlink information comprises: periodically transmitting, by the second network side device, the second downlink information.

32. An apparatus for requesting downlink information transmission, comprising: a first transmission module configured to perform a first operation after transmitting a first uplink signal in a first cell, the first operation comprising at least one of the following: receiving first downlink information of the first cell, the first downlink information being used to indicate second downlink information of at least one second cell; receiving configuration information of a second uplink signal; measuring a reference signal of at least one second cell; transmitting the second uplink signal; receiving the second downlink information of at least one second cell; wherein the second uplink signal is used to request acquisition of the second downlink information, and the first uplink signal is used to at least one of the following: request acquisition of the second downlink information, and request acquisition of the configuration information of the second uplink signal.

33. The apparatus of claim 32, wherein, The first transmission module is specifically configured to transmit, by the terminal, the first uplink signal in the first cell in a case that a first condition is met. The first condition comprises at least one of the following: a measurement result of the first cell being lower than a first threshold value; the measurement result of the first cell being in a first interval; the measurement result of the first cell falling to a second threshold value within a first time period; a measurement result of the first cell decreases by a third threshold value in a second time period; the terminal has a requirement for connection establishment; the terminal does not detect a synchronization signal block (SSB) of a cell other than the first cell; there is no suitable cell; a cell reselection condition is met; a measurement result of the first cell is lower than a fourth threshold value, and a measurement result of at least part of the at least one second cell is lower than a fifth threshold value; wherein the measurement result comprises at least one of: a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal to interference noise ratio (SINR).

34. A downlink information sending apparatus, comprising: a second transmission module configured to perform a second operation when a first uplink signal is received; wherein the second operation comprises at least one of: sending first downlink information, the first downlink information being used to indicate second downlink information of at least one second cell; sending a first message to a second network side device corresponding to a second cell, the first message being used to trigger the second network side device to send the second downlink information of the second cell; sending configuration information of a second uplink signal; receiving a second uplink signal; wherein the second uplink signal is used to request to acquire the second downlink information, and the first uplink signal is used to at least one of: request to acquire the second downlink information and request to acquire the configuration information of the second uplink signal.

35. The apparatus of claim 34, wherein, The second transmission module is further configured to receive a second message from the second network side device, the second message comprising at least one of: a sending period of the second downlink information; a frequency point of the second downlink information; an index of actually sent second downlink information; a number of actually sent second downlink information; a sending period of each second downlink information beam.

36. A downlink information transmission device, characterized in that, comprising: a receiving module configured to receive a first message from a first network side device corresponding to a first cell, the first message being used to trigger a second network side device to send second downlink information of a second cell; a sending module configured to send the second downlink information.

37. A terminal comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the method for requesting downlink information sending according to any one of claims 1 to 20.

38. A network side device comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the method for sending downlink information according to any one of claims 21 to 31.

39. A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions being executed by a processor to implement steps of the method for requesting downlink information sending according to any one of claims l to 20, or to implement steps of the method for sending downlink information according to any one of claims 21to 31.

40. A computer program product comprising computer instructions which, when executed by a processor, implement the steps of the method of requesting transmission of downlink information according to any one of claims 1 to 20, or implement the steps of the method of transmitting downlink information according to any one of claims 21 to 31.

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