Wireless communication method, terminal and network side device

Abstract

The application discloses a wireless communication method, a terminal and a network side device, and belongs to the field of communication. The wireless communication method comprises the following steps: a terminal sends a target uplink transmission, the target uplink transmission is used for at least one of the following: requesting the sending of a target PDCCH; requesting the activation of an SS associated with the target PDCCH; requesting the sending of a PDSCH scheduled by the target PDCCH; requesting the activation of a target RACH resource; wherein the target PDCCH is scrambled by at least one of the following: an RA-RNTI; an SI-RNTI; a first RNTI, wherein the first RNTI is different from the SI-RNTI; the terminal monitors the target PDCCH, or the terminal receives a PDSCH scheduled by the target PDCCH, or the terminal performs random access based on the target RACH resource.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a wireless communication method, terminal, and network-side equipment. Background Technology

[0002] In 6th Generation (6G) communication systems, the PDCCH timing period for type 0PDCCH may be at least 160ms. If the mechanism of receiving broadcast OD-SIB1 in 5G communication systems is continued in 6G communication systems, it may increase the reception latency of SIB1 and the access cell latency, thereby reducing the communication performance of the terminal. Summary of the Invention

[0003] This application provides a wireless communication method, a terminal, and a network-side device, which can improve the communication performance of the terminal.

[0004] In a first aspect, a wireless communication method is provided, executed by a terminal, the method comprising:

[0005] The terminal sends a target uplink transmission, the target uplink transmission being used for at least one of the following:

[0006] Request the transmission of the target physical downlink control channel (PDCCH);

[0007] Request activation of the search space SS associated with the target PDCCH;

[0008] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0009] Request the activation of the target random access channel (RACH) resource;

[0010] The target PDCCH is scrambled by at least one of the following:

[0011] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0012] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0013] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0014] The terminal listens to the target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH, or the terminal performs random access based on the target RACH resource.

[0015] Secondly, a wireless communication method is provided, executed by a network-side device, the method comprising:

[0016] The network-side device receives a target uplink transmission, the target uplink transmission being used for at least one of the following:

[0017] Request the transmission of the target physical downlink control channel (PDCCH);

[0018] Request activation of the search space SS associated with the target PDCCH;

[0019] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0020] Request the activation of the target random access channel (RACH) resource;

[0021] The target PDCCH is scrambled by at least one of the following:

[0022] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0023] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0024] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0025] The network-side device sends the target PDCCH, or the network-side device sends the PDSCH scheduled by the target PDCCH, or the network-side device responds to the terminal's random access based on the target RACH resource.

[0026] Thirdly, a wireless communication device is provided, comprising:

[0027] The sending module is configured to send a target uplink transmission, wherein the target uplink transmission is used for at least one of the following:

[0028] Request the transmission of the target physical downlink control channel (PDCCH);

[0029] Request activation of the search space SS associated with the target PDCCH;

[0030] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0031] Request the activation of the target random access channel (RACH) resource;

[0032] The target PDCCH is scrambled by at least one of the following:

[0033] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0034] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0035] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0036] A receiving module or a processing module, wherein the receiving module is used to monitor the target PDCCH, or the receiving module is used to receive the PDSCH scheduled by the target PDCCH, or the processing module is used to perform random access based on the target RACH resource.

[0037] Fourthly, a wireless communication device is provided, comprising:

[0038] A receiving module is configured to receive a target uplink transmission, wherein the target uplink transmission is used for at least one of the following:

[0039] Request the transmission of the target physical downlink control channel (PDCCH);

[0040] Request activation of the search space SS associated with the target PDCCH;

[0041] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0042] Request the activation of the target random access channel (RACH) resource;

[0043] The target PDCCH is scrambled by at least one of the following:

[0044] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0045] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0046] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0047] A sending module or a processing module, wherein the sending module is used to send the target PDCCH, or the sending module is used to send the PDSCH scheduled by the target PDCCH, or the processing module is used to respond to random access performed by the terminal based on the target RACH resource.

[0048] Fifthly, a wireless communication device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0049] In a sixth 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.

[0050] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to send a target uplink transmission, the target uplink transmission being used for at least one of the following:

[0051] Request the transmission of the target physical downlink control channel (PDCCH);

[0052] Request activation of the search space SS associated with the target PDCCH;

[0053] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0054] Request the activation of the target random access channel (RACH) resource;

[0055] The target PDCCH is scrambled by at least one of the following:

[0056] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0057] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0058] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0059] The communication interface is also used to listen to the target PDCCH, or the communication interface is also used to receive the PDSCH scheduled by the target PDCCH, or the processor is used to perform random access based on the target RACH resources.

[0060] Eighthly, 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.

[0061] A ninth aspect provides a network-side device, including a processor and a communication interface, wherein the communication interface is used to receive a target uplink transmission, the target uplink transmission being used for at least one of the following:

[0062] Request the transmission of the target physical downlink control channel (PDCCH);

[0063] Request activation of the search space SS associated with the target PDCCH;

[0064] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0065] Request the activation of the target random access channel (RACH) resource;

[0066] The target PDCCH is scrambled by at least one of the following:

[0067] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0068] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0069] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0070] The communication interface is also used to send the target PDCCH, or the communication interface is also used to send the PDSCH scheduled by the target PDCCH, or the processor is used to respond to random access performed by the terminal based on the target RACH resource.

[0071] In a tenth 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 implement the steps of the method described in the second aspect.

[0072] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0073] In a twelfth 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 described in the first aspect, or to implement the steps of the method described in the second aspect.

[0074] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the wireless communication method as described in the first or second aspect.

[0075] In this embodiment, the target uplink transmission is used for at least one of the following: requesting the transmission of a target PDCCH, requesting the activation of an SS associated with the target PDCCH, and requesting the transmission of a PDSCH scheduled by the target PDCCH. Since the target PDCCH, the PDSCH scheduled by the target PDCCH, and the SS associated with the target PDCCH can all be used to transmit downlink information, the flexibility of the terminal in receiving downlink information can be improved, thereby reducing the latency of the terminal in receiving downlink information. When the target uplink transmission is used to request the activation of a target RACH resource, it is not necessary to wait for an available statically configured legacy RACH resource for a long time. The terminal can directly access the cell based on the activated target RACH resource, thereby reducing the latency of random access. Attached Figure Description

[0076] Figure 1 This is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0077] Figure 2 This is a schematic flowchart of a wireless communication method provided in an embodiment of this application.

[0078] Figure 3 This is an example of a target PDCCH provided in the embodiments of this application.

[0079] Figure 4 This is an example of the activation of the PDCCH timing for triggering the first PDCCH by the target uplink transmission provided in this application embodiment.

[0080] Figure 5 This is an example of the activation of the PDCCH timing for triggering the second PDCCH by the target uplink transmission provided in this application embodiment.

[0081] Figure 6 This is an example of the activation of the PDCCH timing of the second PDCCH when the target uplink transmission triggers the PDCCH timing, provided in the embodiments of this application, when the SS associated with the first PDCCH and the SS associated with the second PDCCH do not overlap.

[0082] Figure 7 This is an example provided in this application where the target uplink transmission triggers the activation of the PDCCH timing of the second PDCCH when the SS associated with the first PDCCH and the SS associated with the second PDCCH do not overlap, and the PDCCH timing of the second PDCCH is valid.

[0083] Figure 8This is an example provided in this application where the target uplink transmission triggers the activation of the PDCCH timing of the second PDCCH when the SS associated with the first PDCCH and the SS associated with the second PDCCH do not overlap, and the PDCCH timing of the second PDCCH fails after the activation of the PDCCH timing of the first PDCCH.

[0084] Figure 9 This is a schematic flowchart of another wireless communication method provided in the embodiments of this application.

[0085] Figure 10 This is a schematic block diagram of a wireless communication device provided in an embodiment of this application.

[0086] Figure 11 This is a schematic block diagram of another wireless communication device provided in the embodiments of this application.

[0087] Figure 12 This is a schematic block diagram of a communication device provided in an embodiment of this application.

[0088] Figure 13 This is a schematic diagram of the hardware structure of a terminal provided in an embodiment of this application.

[0089] Figure 14 This is a schematic block diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0090] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments 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 devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart earphones, 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 any specific technical term. 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.

[0095] To facilitate a better understanding of the embodiments of this application, the related technologies are described.

[0096] (1) System Information and SIB1

[0097] In 5G New Radio (NR), system information can be divided into three categories: Minimum System Information (MSI), Remaining Minimum System Information (RMSI), and Other System Information (OSI). These three categories can be further divided into one Master Information Block (MIB) and nine System Information Blocks (SIBs). MIB information is transmitted via the Broadcast Channel (BCH) and Physical Broadcast Channel (PBCH), while SIBs are transmitted via the Downlink Shared Channel (DL-SCH) and PDSCH. RMSI includes SIB1, and OSI includes SIB2 through SIB9. MIBs and SIB1 each have their own Radio Resource Control (RRC) messages.

[0098] SIB1 contains the necessary information for the terminal to camp on the cell (e.g., cell selection information, Public Land Mobile Network (PLMN), Tracking Area Code (TAC), cell identifier, Radio Access Network (RAN) notification information, SI scheduling information for OSI, and serving cell information). SIB1 is transmitted via the DL-SCH and PDSCH channels. Its change period is 160ms, and it can be retransmitted within 160ms, with a variable retransmission period. The default retransmission period for SIB1 is 20ms, but the actual retransmission time depends on the network implementation. For the Synchronization Signal / Physical Broadcast Channel Block (SSB) and Control Resource Set (CORESET) multiplexing pattern 1, the SIB1 retransmission period is 20ms; for SSB and CORESET multiplexing patterns 2 / 3, the SIB1 retransmission period is consistent with the SSB period. The PDSCH channel where SIB1 is located is scheduled using SI-RNTI scrambled Downlink Control Information (DCI) format 1_0.

[0099] (2) PDCCH.

[0100] The PDCCH is the only downlink control channel in NR, and the data carried by the PDCCH is the DCI. The DCI mainly contains PDSCH or Physical Uplink Shared Channel (PUSCH) transmission resource scheduling information, as well as uplink power control (PUSCH, Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS)) indications, time slot format indications, and information on which Physical Resource Blocks (PRBs) and Orthogonal Frequency Division Multiplexing (OFDM) symbols the UE is not mapping to, etc. After scrambling, modulation, and coding, the DCI is mapped to physical resources in units of Control Channel Elements (CCEs).

[0101] The PDCCH dynamically sends control information (DCI) to the UE. The UE needs to read this control information to know when (time domain), where (frequency domain), and how to demodulate / decode the PDSCH (downlink), or when (time domain), where (frequency domain), and how to assemble and send PUSCH data (uplink).

[0102] (3) CORESET.

[0103] A CORESET is a collection of time-domain and frequency-domain resources for control information. The basic building block of a CORESET is a Resource Element Group (REG), with one REG corresponding to one PRB on one OFDM symbol. The number of REGs contained in a CORESET is generally a multiple of 6.

[0104] CORESET#0 is a special CORESET typically used to schedule the transmission of SIB1 PDCCH. The configuration information for CORESET#0, as well as the configuration information for the listening timing of the Type 0-PDCCH Common Search Space (CSS), is carried by the associated Cell-Defined Synchronization Signal Block (CD-SSB). The main function of CORESET#0 is to define the time and frequency resources of the Type 0-PDCCH CSS and the size of the Type 0-PDCCH CSS listening timing.

[0105] The resource configuration information for CORESET#0 is indicated by an 8-bit pdcch-ConfigSIB1 in the MIB, with the high 4 bits indicating ControlResourceSetZero and the low 4 bits indicating searchSpaceZero. Furthermore, an index can be obtained from ControlResourceSetZero, and using this index to look up information such as the number of consecutive symbols Nsymb occupied by the CORESET and the multiplexing mode of CORESET#0 and SSB can be retrieved. Similarly, an index can be obtained from searchSpaceZero, and using this index to look up information about the search space (SS) can be obtained. Based on this information, the UE can determine where to perform blind detection (BD) on the SIB1 PDCCH.

[0106] (4)SS.

[0107] The terminal receives a PDCCH containing a specific DCI through blind detection (BD). Since it is blind detection, it means that the reception of the PDCCH is performed within a specified range, which is called the SS.

[0108] There are two types of Search Space (SS) sets: one is a Common Search Space (CSS) set monitored by a group of UEs in the cell, and the other is a UE-specific Search Space (USS) set monitored by a single UE. The SS set further configures the PDCCH candidates that the UE needs to monitor. The search spaces in NR are of the following types:

[0109] 1. Type0-PDCCH CSS set: This searchspace set is used to listen to SIB1.

[0110] 2. Type0A-PDCCH CSS set: This search space set is used to listen for system messages other than SIB1.

[0111] 3. Type1-PDCCH CSS set: This search space set is used to listen to: the downlink PDCCH corresponding to Msg2 / 4 in the traditional 4-step random access process; and the downlink PDCCH corresponding to Msg-B in the 2-step random access process added in R16.

[0112] 4. Type2-PDCCH CSS set: This search space set is used to listen for paging messages.

[0113] 5. Type3-PDCCH CSS set: This search space set is used to listen to the uplink power control PDCCH, downlink pre-emption PDCCH, slot format indication PDCCH, and PDCCH related to downlink data transmission.

[0114] 6. UE-specific search space (USS): This search space set is used to listen for and monitor PDCCH related to downlink data transmission.

[0115] (5) The relationship between CORESET and SS.

[0116] CORESET addresses the scope of PDCCH existence, such as frequency and time domain resources. However, RRC signaling reveals that the CORESET configuration does not specify the exact time domain location where the UE monitors the PDCCH; instead, the specific time domain location is determined by the Monitoring Occasion (MO) provided by the SS. This design offers greater flexibility. CORESET can be configured at any frequency domain location (the configuration parameter FrequencyDomainResources Information Element (IE) is a bitmap of the PRB number of the current Bandwidth Part (BWP)). The SS addresses how the UE searches. The Searchspace IE configures the UE's monitoring period, start position, and slot offset. The key parameter monitoringSymbolsWithinSlot IE can be understood as: within N consecutive slots specified by the duration, which SS start symbols (OFDM symbols) require monitoring occcasions for each slot.

[0117] (6) Random access technology.

[0118] RACH serves many purposes. For example, random access triggered by PDCCH orders is primarily for the UE to obtain uplink time synchronization. Another example is when the UE establishes the initial radio link, the random access procedure can be used to obtain user identifiers, such as the Cell-Radio Network Temporary Identifier (C-RNTI) information.

[0119] Random access procedures can be either contention-based random access (CBRA) or contention-free random access (CFRA).

[0120] The CBRA process is as follows: The UE randomly selects a preamble from the contention-based preamble pool shared with other UEs in the cell and transmits it on the PRACH. After the network detects the preamble, it sends a Msg2 (Random Access Response, RAR) message. The RAR contains the number of the preamble detected by the network and the uplink radio resources allocated to the UE to send Msg3. After receiving Msg2, the UE confirms that at least one of the preamble numbers carried in Msg2 matches the number of the preamble it sent. Then, according to the resources indicated by the RAR, it sends Msg3 containing contention resolution information. After receiving Msg3, the network sends Msg4 containing contention resolution information. After receiving Msg4, the UE confirms that the contention resolution information is consistent with the one it sent in Msg3, thus completing the four-step random access process. The network includes Uplink Grant (UL Grant) information in the RAR to indicate Msg3 PUSCH scheduling information, and also includes Random Access Preamble ID (RAPID), Temporary Cell-Radio Network Temporary Identifier (TC-RNTI), Timing Advance (TA), and other information. If the network does not receive Msg3 PUSCH, it can schedule retransmission of Msg3 PUSCH in the PDCCH scrambled by TC-RNTI. Since different UEs randomly select preambles for transmission in CBRA, different UEs may select the same preamble for transmission on the same time-frequency radio resource (Random Access Occasion (RO) resource), which can be understood as a UE preamble conflict.

[0121] In CFRA, the preamble is allocated by the base station. This preamble is called a dedicated random access preamble and is provided to the UE via RRC signaling or PDCCH command signaling, thus eliminating resource conflicts. When dedicated random access preamble resources are insufficient, the base station can notify the terminal to initiate CBRA-based access.

[0122] It should be noted that in the 5th generation (5 thIn the Generation 5G communication system, the System Information Block 1 (SIB1) of the energy-saving cell is triggered by on-demand requests. After the terminal sends the Uplink Wake-Up Signal (UL-WUS), it only starts listening to the PDCCH of the Type 0 Physical Downlink Control Channel (PDCCH) for scheduling the broadcast of On-Demand System Information Block 1 (OD-SIB1) after receiving the feedback information from the UL-WUS.

[0123] However, in 6th Generation (6G) communication systems, the PDCCH timing period for type 0 PDCCH may be at least 160ms. If the mechanism of receiving broadcast OD-SIB1 in 5G communication systems is continued in 6G communication systems, it may increase the reception latency of PDCCH, the reception latency of the Physical Downlink Shared Channel (PDSCH) scheduled by PDCCH, and the access cell latency, thereby reducing the communication performance of the terminal.

[0124] This application provides a wireless communication method, a terminal, and a network-side device, which can improve the communication performance of the terminal.

[0125] The wireless communication method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0126] Figure 2 This is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application. It should be understood that... Figure 2 The steps or operations of the wireless communication method 200 are illustrated, but these steps or operations are merely examples, and other operations may be performed in this application. Figure 2 Variations of various operations within it.

[0127] like Figure 2 As shown, the wireless communication method 200 may include:

[0128] S201, the terminal sends a target uplink transmission, the target uplink transmission being used for at least one of the following:

[0129] Request the sending of the target PDCCH;

[0130] Request the activation of the SS associated with the target PDCCH;

[0131] Request the transmission of the PDSCH scheduled by the target PDCCH;

[0132] Request activation of the target RACH resource;

[0133] The target PDCCH is scrambled by at least one of the following:

[0134] RA-RNTI;

[0135] SI-RNTI;

[0136] The first RNTI is different from the SI-RNTI;

[0137] The terminal described in this application embodiment may include, but is not limited to, at least one of the following:

[0138] Reduced Capability (RedCap) terminals, Low Power Wide Area (LPWA) terminals, Enhanced Mobile Broadband (eMBB) terminals, and new types of 6G terminals.

[0139] The target uplink transmission described in the embodiments of this application may include, but is not limited to, at least one of the following:

[0140] The target uplink transmission includes, but is not limited to, at least one of the following:

[0141] Msg A PRACH

[0142] Msg B PRACH

[0143] Msg1;

[0144] preamble sequence;

[0145] Msg 3PUSCH;

[0146] Uplink Wake-Up Signal (UL-WUS).

[0147] The phrase "request for activation of A" in this application can be replaced or understood as "trigger activation of A", "trigger A", "activate A", etc., and this application does not impose specific limitations on it. For example, the phrase "request for activation of SS associated with target PDCCH" in this application can be replaced or understood as "trigger activation of SS associated with target PDCCH", "trigger SS associated with target PDCCH", "activate SS associated with target PDCCH", etc., and this application does not impose specific limitations on it.

[0148] For example, the first RNTI can be any type of public RNTI.

[0149] For example, the first RNTI can be any type of RNTI other than non-SI-RNTI and non-RA-RNTI, or it can be a new RNTI that is different from the existing types of RNTI in 5G NR.

[0150] S202, the terminal listens to the target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH, or the terminal performs random access based on the target RACH resource.

[0151] If the target uplink transmission is used to request the transmission of the target PDCCH, the terminal listens to the target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH.

[0152] If the target uplink transmission is used to request the activation of the SS associated with the target PDCCH, the terminal listens to the target PDCCH based on the SS associated with the activated target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH.

[0153] If the target uplink transmission is used to request the transmission of the PDSCH scheduled by the target PDCCH, the terminal listens to the target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH.

[0154] If the target uplink transmission is used to request the activation of the target RACH resource, the terminal performs random access based on the target RACH resource. The random access includes at least one of the following: two-step random access, four-step random access, contention-based random access, and non-contention-based random access.

[0155] If the target uplink transmission function includes at least one of requesting the transmission of the target PDCCH, requesting the activation of the SS associated with the target PDCCH, and requesting the transmission of the PDSCH scheduled by the target PDCCH, the terminal listens to the target PDCCH, or the terminal monitors the PDCCH based on the activated SS, or the terminal receives the PDSCH scheduled by the target PDCCH.

[0156] If the target uplink transmission function includes at least one of requesting the transmission of a target PDCCH, requesting the activation of an SS associated with the target PDCCH, and requesting the transmission of a PDSCH scheduled by the target PDCCH, and requesting the activation of a target RACH resource, the terminal listens to the target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH; further, the terminal performs random access based on the target RACH resource. The random access includes at least one of the following: two-step random access, four-step random access, contention-based random access, and non-contention-based random access.

[0157] In this embodiment, the target uplink transmission is used for at least one of the following: requesting the transmission of a target PDCCH, requesting the activation of an SS associated with the target PDCCH, and requesting the transmission of a PDSCH scheduled by the target PDCCH. Since the target PDCCH, the PDSCH scheduled by the target PDCCH, and the SS associated with the target PDCCH can all be used to transmit downlink information, the flexibility of the terminal in receiving downlink information can be improved, thereby reducing the latency of the terminal in receiving downlink information. When the target uplink transmission is used to request the activation of a target RACH resource, it is not necessary to wait for an available statically configured legacy RACH resource for a long time. The terminal can directly access the cell based on the activated target RACH resource, thereby reducing the latency of random access.

[0158] In some embodiments, the PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

[0159] In some embodiments, the target uplink transmission is a UL-WUS signal, which may be a preamble sequence Msg1, a preamble, or Msg A PRACH.

[0160] In some embodiments, the configuration of the target uplink transmission is understood as the WUS configuration.

[0161] In some embodiments, the target PDCCH includes at least one of the following:

[0162] 1. The first PDCCH is used to schedule part or all of the information in the system information block (e.g., unicast OD-SIB1 or UE-specific OD-SIB1).

[0163] For example, the first PDSCH scheduled by the first PDCCH may include some or all of the information of unicast OD-SIB1.

[0164] For example, the target uplink transmission (e.g., UL-WUS) is used to request unicast OD-SIB1, which is scheduled by the target PDCCH (including the first PDCCH). The target PDCCH (including the first PDCCH) can be scrambled by SI-RNTI, RA-RNTI, other new RNTI, or common RNTI.

[0165] The scheduling information block involved in this application can be referred to as an incremental (delta) system information block, such as incremental SIB1. Incremental SIB1 refers to SIB1 after removing some parameters already provided by the configuration of the target uplink transmission (e.g., UL-WUS), and is not a complete SIB1. For example, if the configuration of the target uplink transmission (e.g., UL-WUS) provides parameters such as SSB power, SSB frequency, SSB period, and SSB-positionInBurst of the NES cell, then incremental SIB1 may not contain these parameters; it can be understood that these parameters, which the UE has already obtained from the UL-WUS configuration, may not be carried in unicast OD-SIB1 to save the transmission overhead of unicast OD-SIB1.

[0166] 2. The second PDCCH is used to schedule all information of the system information block (e.g., broadcast OD-SIB1); for example, the second PDCCH can be used to schedule all information of broadcast OD-SIB1.

[0167] For example, the second PDCCH can be of type 0PDCCH.

[0168] For example, the target uplink transmission (e.g., UL-WUS) is used to request broadcast OD-SIB1, which is scheduled by the target PDCCH (including the second PDCCH), and the target PDCCH (including the second PDCCH) may be scrambled by SI-RNTI.

[0169] 3. The third PDCCH is used to schedule Msg2 or MsgB;

[0170] For example, the third PDSCH of the third PDCCH scheduling may include RAR. For a UE that needs to transmit services and access a target cell, it can send a UL-WUS request to send the first PDCCH and the third PDCCH (the first PDCCH and the third PDCCH can be the same PDCCH bearer, or the same PDCCH with two functions, scheduling SIB1 and Msg2 / MsgB). The first PDCCH schedules unicast OD-SIB1, and the third PDCCH schedules Msg2 / MsgB in the random access procedure. If the UE receives the SIB1 from the target cell and determines that the target cell meets the criteria for a suitable cell, allowing it to camp or access the target cell, the UE can continue to send Msg3 to complete the subsequent random access procedure. This avoids the problem of repeatedly sending UL-WUS (Msg1) to request SIB1 and then sending Msg1 (the first step of random access) to request access. In this application, the UE only needs to send one uplink request to receive SIB1 and Msg2 / MsgB in the random access procedure.

[0171] 4. The fourth PDCCH is used to activate the target RACH resource.

[0172] The target RACH resource described in this application embodiment can be understood as being triggered / activated by the target uplink transmission (e.g., UL-WUS), or activated by the target PDCCH triggered by the target uplink transmission.

[0173] For example, UL-WUS triggers the transmission of the first PDCCH and the fourth PDCCH. That is, after the UE sends UL-WUS, UL-WUS triggers the transmission of the first PDCCH for scheduling unicast OD-SIB1. The UE can receive unicast OD-SIB1 based on the first PDCCH. The fourth PDCCH also indicates that the target RACH resource is activated. Then the UE can perform random access on the activated target RACH resource. The fourth PDCCH and the first PDCCH can be the same PDCCH.

[0174] For example, UL-WUS triggers the transmission of the second and fourth PDCCHs. That is, after the UE sends UL-WUS, UL-WUS triggers the transmission of the second PDCCH for scheduling broadcast OD-SIB1. The UE can receive broadcast OD-SIB1 based on the second PDCCH, and the fourth PDCCH also indicates that the target RACH resource is activated. Therefore, the UE can perform random access on the activated target RACH resource. In some implementations, the fourth PDCCH and the second PDCCH can be the same PDCCH.

[0175] For example, UL-WUS triggers the transmission of the first, third, and fourth PDCCHs. That is, after the UE sends UL-WUS, UL-WUS triggers the transmission of the third PDCCH scheduling Msg2 / MsgB, and also triggers the transmission of the first PDCCH scheduling unicast OD-SIB1. The UE can receive unicast OD-SIB1 based on the first PDCCH and receive MsgB / Msg2 based on the third PDCCH. Furthermore, the fourth PDCCH indicates that the target RACH resource is activated, allowing the UE to perform random access on the activated target RACH resource. In some implementations, any two or three of the first, fourth, and third PDCCHs can be the same PDCCH.

[0176] Optionally, the target RACH resource can be an RO (Resource Oriented), which can be understood as an additional RO resource relative to a traditional RO (e.g., an always-on RO). The configuration of the target RACH resource can be indicated by a UE-specific OD-SIB1 or by the configuration of the target uplink transmission (e.g., UL-WUS). Optionally, the additional RO can be a one-shot RO, for example, valid only within a single window.

[0177] 5. The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

[0178] For example, the fifth PDSCH can also be referred to as the feedback of the target uplink transmission (e.g., UL-WUS).

[0179] In this embodiment, by allocating different target uplink transmission resources to the activation / triggering of different target PDCCHs, the terminal can flexibly trigger / request the transmission of part or all of the system information block information, the transmission of all the system information block information, the transmission of message 2Msg2 or message BMsgB, and the activation of the target RACH resource according to its current needs. This not only helps to reduce the reception latency of acquiring system messages, but also reduces the latency of random access.

[0180] In some embodiments, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are the same PDCCH; or, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are scrambled by the same RNTI or by different RNTIs; or, the SS associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain; or, the control resource set CORESET associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain.

[0181] It is understandable that, in order to distinguish the functions of the PDCCH, such as the first PDCCH scheduling OD-SIB1, the second PDCCH scheduling broadcast OD-SIB1, the third PDCCH scheduling Msg / MsgB, the fourth PDCCH activating the target RACH resource, and the fifth PDCCH scheduling the uplink transmission feedback corresponding to the target uplink transmission, the target PDCCH is divided into the first / second / third / fourth / fifth PDCCH. However, any two / any three / any four / any five of the first / second / third / fourth / fifth PDCCH can be the same PDCCH. That is, one PDCCH can implement one or more of the functions of the first / second / third / fourth / fifth PDCCH. In other words, after the UE sends the target uplink transmission, the requested target PDCCH can contain any one / any two / any three / any four / any five of the functions of the first / second / third / fourth / fifth PDCCH.

[0182] For example, the target PDCCH includes either the first PDCCH or the second PDCCH and the third PDCCH.

[0183] In one implementation, the target PDCCH is used to schedule part or all of the information of the system information block (e.g., unicast OD-SIB1 or UE-specific OD-SIB1) and Msg2 / MsgB. For example, the target PDCCH can be used to schedule part or all of the information of unicast OD-SIB1 and Msg2 / MsgB, wherein part or all of the information of unicast OD-SIB1 is scheduled by a first PDCCH, which is scrambled by a first RNTI / RA-RNTI / SI-RNTI, and Msg2 / MsgB is scheduled by a third PDCCH, which is scrambled by RA-RNTI. In other words, the target uplink transmission (e.g., UL-WUS) is used to request unicast OD-SIB1 and Msg2 / MsgB, which are scheduled by the target PDCCH, which can be scrambled by SI-RNTI or RA-RNTI.

[0184] In another implementation, the target PDCCH is used to schedule all information of a system information block (e.g., broadcast OD-SIB1) and Msg2 / MsgB; for example, the target PDCCH can be used to schedule all information of broadcast OD-SIB1 and Msg2 / MsgB. Part or all of the information of broadcast OD-SIB1 is scheduled by a second PDCCH, which is scrambled by SI-RNTI. Msg2 / MsgB is scheduled by a third PDCCH, which is scrambled by RA-RNTI. For example, the target uplink transmission (e.g., UL-WUS) is used to request broadcast OD-SIB1 and Msg2 / MsgB, which are scheduled by the target PDCCH, which can be scrambled by SI-RNTI.

[0185] For example, the target PDCCH includes either the first PDCCH or the second PDCCH and the fourth PDCCH.

[0186] In one implementation, the target PDCCH is used to schedule some or all of the information of the system information block (e.g., unicast OD-SIB1 or UE-specific OD-SIB1) and activate the target RACH resource; for example, the target PDCCH can be used to schedule some or all of the information of unicast OD-SIB1 and activate the target RACH resource. In other words, the target uplink transmission (e.g., UL-WUS) is used to request unicast OD-SIB1, which is scheduled by the target PDCCH. The target PDCCH can be scrambled by SI-RNTI or RA-RNTI. Further, the target RACH resource is activated by the target PDCCH, and the terminal can perform random access on the activated target RACH resource.

[0187] In another implementation, the target PDCCH is used to schedule all information of a system information block (e.g., broadcast OD-SIB1) and activate the target RACH resource; for example, the target PDCCH can be used to schedule all information of broadcast OD-SIB1 and activate the target RACH resource. For example, the target uplink transmission (e.g., UL-WUS) is used to request broadcast OD-SIB1, which is scheduled by the target PDCCH, and the target PDCCH can be scrambled by SI-RNTI. Further, the target RACH resource is activated by the target PDCCH, and the terminal can perform random access on the activated target RACH resource.

[0188] In this embodiment, at least two of the first, second, third, fourth, and fifth PDCCHs are the same PDCCH; or, at least two of the first, second, third, fourth, and fifth PDCCHs are scrambled using the same RNTI; or, the SS associated with at least two of the first, second, third, fourth, and fifth PDCCHs overlap in the time-frequency domain; or, the control resource set CORESET associated with at least two of the first, second, third, fourth, and fifth PDCCHs overlaps in the time-frequency domain. This can reduce the number of PDCCH listening attempts and thus improve the communication performance of the terminal.

[0189] In some embodiments, the first PDCCH is scrambled by any one of the following: the RA-RNTI, the SI-RNTI, and the first RNTI; or, the second PDCCH is scrambled by the SI-RNTI.

[0190] In this embodiment, the first PDCCH is scrambled by any one of the following: the RA-RNTI, the SI-RNTI, or the first RNTI; or, the second PDCCH is scrambled by the SI-RNTI, which enables the terminal to decode different target PDCCHs based on different RNTI scrambling.

[0191] In some embodiments, the second PDCCH / third PDCCH / fourth PDCCH / fifth PDCCH may be scrambled by any of the following: the RA-RNTI, the SI-RNTI, or the C-RNTI.

[0192] In some embodiments, the SS associated with the target PDCCH satisfies at least one of the following:

[0193] When the first PDCCH is scrambled by SI-RNTI, the SS associated with the first PDCCH is the first SS;

[0194] When the first PDCCH is scrambled by the RA-RNTI, the SS associated with the first PDCCH is a Random Access Response (RAR) SS or other types of SS;

[0195] When the first PDCCH is scrambled by the first RNTI, the SS associated with the first PDCCH is an SS of any type;

[0196] When the second PDCCH is scrambled by the SI-RNTI, the SS associated with the second PDCCH is SS0;

[0197] When the third PDCCH is scrambled by the RA-RNTI, the SS associated with the third PDCCH is RARSS;

[0198] The first SS is different from SS0. Optionally, SS0 can also be called Type 0PDCCH SS. In other words, SS0 is an SS used to listen to Type 0PDCCH.

[0199] For example, the target PDCCH can be scrambled by different RNTIs, and the target PDCCH can correspond to different SSs.

[0200] For example, if the target PDCCH is scrambled by RA-RNTI, the terminal monitors the RAR SS (e.g., this can be provided by the configuration of the target uplink, for example, if the target uplink is UL-WUS, it can be provided by the UL-WUS configuration).

[0201] For example, if the target PDCCH is scrambled by SI-RNTI, the terminal listens to at least one of the first SS and SS0. The first SS can be an SS different from SS0. The first SS can be triggered by the target uplink transmission. For example, the first SS can be triggered by UL-WUS.

[0202] For example, if the target PDCCH is scrambled by the first RNTI, the terminal listens to any type of SS. For example, the arbitrary type of SS can be SS0, an SS independent of type 0 PDCCH, or an SS independent of RAR SS.

[0203] This embodiment aims to determine which SS is associated with the target PDCCH when the UE requests a target PDCCH scrambled by different RNTIs.

[0204] In some embodiments, the period of the first SS is less than the period of the SS0, or the first SS and the SS0 do not overlap or overlap in the time-frequency domain. For example, the period of the first SS being less than the period of the SS0 is agreed upon by a protocol, or the period of the first SS being less than the period of the SS0 is configured by a network-side device. Alternatively, the non-overlapping or overlapping of the first SS and the SS0 in the time-frequency domain is agreed upon by a protocol, or the non-overlapping or overlapping of the first SS and the SS0 in the time-frequency domain is configured by a network-side device, such as by UL-WUS configuration.

[0205] In this embodiment, the period of the first SS is shorter than the period of the SS0, which can reduce the latency of the terminal receiving the PDSCH scheduled by the first PDCCH. For example, when the first PDCCH is used to schedule part or all of the information of the system information block (e.g., SIB1), it can reduce the latency of the UE receiving the system information block (e.g., SIB1). That is, after sending UL-WUS, the UE can listen to the scheduling information of SIB1 in the first SS, avoiding waiting a long time for the SS0 to listen to the scheduling information of SIB1.

[0206] In some embodiments, the method 200 further includes:

[0207] The terminal performs at least one of the following based on the PDSCH scheduled by the third PDCCH:

[0208] Determine whether access to the target cell is permitted;

[0209] If it is determined that access to the target cell is not permitted, the random access procedure shall be terminated.

[0210] Send the first instruction message to the target cell;

[0211] Based on the timing of the information block in the decoding system, the timing for sending the first indication information is determined;

[0212] Receive MsgB or Msg4;

[0213] Residing in the target community;

[0214] The first indication information includes information indicating whether the terminal is allowed or not allowed to access the target cell;

[0215] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0216] In this embodiment, the UL-WUS sent by the terminal is equivalent to the first step in the random access process, namely the transmission of Msg1. At the same time, the UL-WUS also requests the transmission of OD-SIB1. Based on the PDSCH (i.e., Msg2 / MsgB) scheduled by the third PDCCH and the SIB1 scheduled by the first PDCCH, the terminal determines whether it can continue to execute the third step of the random access process (sending Msg3). The Msg3 carries information to indicate to the network side that the UE should access / not access the cell. If the UE indicates access, the network side will execute the fourth step of the random access process and send Msg4. If the UE indicates not to access, the random access process will be terminated, thereby improving the cell access performance of the terminal. Furthermore, since after transmitting the target uplink (e.g., UL-WUS), the terminal needs to decode the system information block (e.g., SIB1), decode the RAR (e.g., Msg2), and then send the first indication information (e.g., Msg3), the time required is longer than that required in the traditional four-step RACH process where the UE only needs to receive Msg2. Therefore, by determining the timing for sending the first indication information (e.g., Msg3) based on the timing of decoding the system information block (e.g., SIB1), the terminal can improve the efficiency of sending the first indication information (e.g., Msg3). That is, the UE must ensure that SIB1 is fully decoded before sending Msg3.

[0217] In some embodiments, the PDSCH scheduled by the target PDCCH includes at least one of the following:

[0218] Part or all of the information in the system information block (e.g., unicast OD-SIB1 or UE-specific OD-SIB1);

[0219] All information of the system information block (e.g., broadcast OD-SIB1);

[0220] Msg2 or MsgB;

[0221] The uplink transmission feedback corresponding to the target uplink transmission.

[0222] If the target PDCCH includes a first PDCCH, which is used to schedule part or all of the information of a system information block (e.g., unicast OD-SIB1 or UE-specific OD-SIB1), then the PDSCH scheduled by the target PDCCH includes part or all of the information of the system information block (e.g., unicast OD-SIB1 or UE-specific OD-SIB1). For example, the first PDCCH can be used to schedule part or all of the information of unicast OD-SIB1. In other words, the target uplink transmission (e.g., UL-WUS) is used to request the transmission of unicast OD-SIB1, which is scheduled by the target PDCCH (including the first PDCCH). The target PDCCH (including the first PDCCH) can be scrambled by SI-RNTI, RA-RNTI, other common RNTIs, or new RNTIs.

[0223] If the target PDCCH includes a second PDCCH, and the second PDCCH is used to schedule all information of a system information block (e.g., broadcast OD-SIB1), then the PDSCH scheduled by the target PDCCH includes all information of the system information block (e.g., broadcast OD-SIB1). For example, the second PDCCH can be used to schedule broadcast OD-SIB1. For example, the target uplink transmission (e.g., UL-WUS) is used to request broadcast OD-SIB1, and broadcast OD-SIB1 is scheduled by the target PDCCH (including the second PDCCH). The target PDCCH (including the second PDCCH) can be scrambled by SI-RNTI.

[0224] If the target PDCCH includes a third PDCCH, and the third PDCCH is used to schedule Msg2 or MsgB, then the PDSCH scheduled by the target PDCCH includes Msg2 or MsgB.

[0225] If the target PDCCH includes a fifth PDCCH, and the fifth PDCCH is used to schedule the uplink transmission feedback, then the PDSCH scheduled by the target PDCCH includes the uplink transmission feedback.

[0226] In some embodiments, the content scheduled by the target PDCCH can be carried on the same PDSCH. For example, if the target PDCCH (one PDCCH) schedules both unicast OD-SIB1 and Msg2 / MsgB, then OD-SIB1 and Msg2 / MsgB can be carried on the same PDSCH (one PDSCH); or they can be carried separately, i.e., the first PDCCH schedules unicast OD-SIB1, and the third PDCCH schedules Msg2 / MsgB, so unicast OD-SIB1 is carried on the first PDSCH scheduled by the first PDCCH, and Msg2 / MsgB is carried on the third PDSCH scheduled by the third PDCCH. For example, if the target PDCCH (one PDCCH) schedules both unicast OD-SIB1 and the uplink feedback corresponding to the target uplink transmission, then OD-SIB1 and the uplink feedback corresponding to the target uplink transmission can be carried on the same PDSCH (one PDSCH); or they can be carried separately, i.e., the first PDCCH schedules unicast OD-SIB1, and the fifth PDCCH schedules the uplink feedback corresponding to the target uplink transmission. Therefore, unicast OD-SIB1 is carried on the first PDSCH scheduled by the first PDCCH, and the uplink feedback corresponding to the target uplink transmission is carried on the fifth PDSCH scheduled by the fifth PDCCH. For example, if the target PDCCH (one PDCCH) schedules both the broadcast OD-SIB1 and the uplink feedback corresponding to the target uplink transmission, then the broadcast OD-SIB1 and the uplink feedback corresponding to the target uplink transmission can be carried on the same PDSCH (one PDSCH); or they can be carried separately, that is, the second PDCCH schedules the broadcast OD-SIB1, and the fifth PDCCH schedules the uplink feedback corresponding to the target uplink transmission. Therefore, the broadcast OD-SIB1 is carried on the second PDSCH scheduled by the second PDCCH, and the uplink feedback corresponding to the target uplink transmission is carried on the fifth PDSCH scheduled by the fifth PDCCH.

[0227] In this embodiment, by allocating different target uplink transmission resources to different target PDCCH requests, the terminal can flexibly trigger the transmission of part or all of the system information block information, the transmission of all the system information block information, the transmission of message 2Msg2 or message BMsgB, and the activation of the target RACH resource. This not only helps to reduce the reception latency of system messages, but also reduces the latency of random access.

[0228] In some embodiments, the time-frequency resources of the target uplink transmission are associated with the target PDCCH; or, multiple time-frequency resources of the target uplink transmission are associated with multiple target PDCCHs; or, multiple preamble sequence resources of the target uplink transmission are associated with multiple target PDCCHs, wherein the preamble sequence resources include at least one of the following: a preamble identifier range and a preamble sequence format.

[0229] The preamble identifier range can be the range to which the identifier of the preamble sequence belongs. The preamble sequence format can be any format of the preamble sequence.

[0230] For example, the time-frequency resource may be a RO, such as multiple ROs of the target uplink transmission being associated with multiple target PDCCHs.

[0231] For example, the time-frequency resources and preamble sequence resources are associated with the triggering of one or more target PDCCHs; for example, preamble sequence 1 requests the transmission of the first PDCCH, and preamble sequence 2 requests the transmission of the first PDCCH and the third PDCCH (wherein, the first PDCCH and the third PDCCH can be the same PDCCH).

[0232] For example, if the preamble index used by the target uplink transmission is in interval 1, the target uplink transmission is used to request the transmission of the target PDCCH. The terminal's behavior after executing the target uplink transmission is either to listen to the target PDCCH or to receive the PDSCH scheduled by the target PDCCH. If the preamble index used by the target uplink transmission is in interval 2, the target uplink transmission is used to request the activation of the target RACH resource. The terminal's behavior after executing the target uplink transmission is to perform random access based on the target RACH resource. If the preamble index used by the target uplink transmission is in interval 3, the target uplink transmission is used to request the activation of the target RACH resource and the transmission of OD-SIB1. The terminal's behavior after executing the target uplink transmission is to receive SIB1 and perform random access based on the target RACH resource. Optionally, the random access includes at least one of the following: two-step random access, four-step random access, contention-based random access, and non-contention-based random access.

[0233] For example, the association of multiple time-frequency resources of the target uplink transmission with multiple target PDCCHs can be understood as: the multiple time-frequency resources of the target uplink transmission are associated with multiple target PDCCHs; or, the multiple preamble sequence resources of the target uplink transmission are associated with multiple target PDCCHs. Association means that a mapping relationship exists, i.e., different time-frequency resources and different preamble sequence resources are used to request the transmission of different target PDCCHs. For example, taking the target uplink transmission as UL-WUS, different functions of UL-WUS can be distinguished based on different preambles / ROs, including requesting the scheduling of unicast OD-SIB1 PDCCH transmission, or requesting the scheduling of broadcast OD-SIB1 PDCCH transmission, or requesting the activation of the target RACH resource PDCCH transmission, etc.

[0234] For example, the association of multiple time-frequency resources of the target uplink transmission with multiple PDSCHs scheduled by the target PDCCH can be understood as: the association of multiple time-frequency resources of the target uplink transmission with multiple PDSCHs scheduled by the target PDCCH; or, the association of multiple preamble sequence resources of the target uplink transmission with multiple PDSCHs scheduled by the target PDCCH. For example, taking the target uplink transmission as UL-WUS, different functions of UL-WUS can be distinguished based on different preambles / ROs, including requesting the transmission of unicast OD-SIB1, or requesting the transmission of broadcast OD-SIB1, or requesting the activation of the target RACH resources, etc. Correspondingly, the PDSCH received by the terminal can be distinguished based on different preambles / ROs, including unicast OD-SIB1 or broadcast OD-SIB1, etc.

[0235] In this embodiment, multiple time-frequency resources of the target uplink transmission are associated with multiple target PDCCHs; or, multiple preamble sequence resources of the target uplink transmission are associated with multiple target PDCCHs, which enables the target uplink transmission to request the transmission of different content, thereby improving the flexibility of the target uplink transmission.

[0236] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission is used to indicate at least one of the following:

[0237] The preamble identifier associated with the target uplink transmission;

[0238] Any preamble identifier in the preamble identifier range associated with the target uplink transmission;

[0239] The system information triggered by the target uplink transmission is either broadcast system information or unicast system information;

[0240] Activate or deactivate the target PDCCH;

[0241] Activate or deactivate the SS associated with the target PDCCH;

[0242] Activate or deactivate the target RACH resource.

[0243] For example, after receiving the uplink transmission feedback corresponding to the target uplink transmission, the terminal can determine whether the trigger was successful, or determine whether the network-side device is about to send a broadcast OD-SIB1 or a unicast OD-SIB1 (for example, the first PDCCH and the second PDCCH are both SI-RNTI scrambled), or determine the SS that needs to be monitored (for example, the first PDCCH and the second PDCCH are both SI-RNTI scrambled, and the SS associated with the first PDCCH is the first SS, which is different from SS0).

[0244] For example, if the uplink transmission feedback corresponding to the target uplink transmission is used to indicate the preamble identifier associated with the target uplink transmission, it can serve as an acknowledgment message for the target uplink transmission, that is, to notify the terminal that the network has received the preamble identifier associated with the target uplink transmission. The preamble identifier associated with the target uplink transmission can be an identifier of the WUS preamble.

[0245] For example, if the uplink transmission feedback corresponding to the target uplink transmission is used to indicate any preamble identifier in the preamble identifier range associated with the target uplink transmission, it can be used in the following scenarios:

[0246] Both UE1 and UE2 send WUS-related preambles that are in interval 1. Before sending WUS, UE1 can first receive WUS feedback. If the preamble contained in the WUS feedback is any preamble in interval 1, then UE1 believes that another UE has already sent WUS, that is, another UE has already requested the transmission of the target PDCCH or target PDSCH. Therefore, it does not need to send WUS again and can directly start receiving SIB1.

[0247] For example, if the uplink transmission feedback corresponding to the target uplink transmission indicates that the system information triggered by the target uplink transmission is broadcast system information (e.g., broadcast OD-SIB1), the terminal can listen to the PDCCH used to schedule the broadcast system information (e.g., broadcast OD-SIB1), i.e., the second PDCCH. If the uplink transmission feedback corresponding to the target uplink transmission indicates that the system information triggered by the target uplink transmission is unicast system information (e.g., unicast OD-SIB1), the terminal can listen to the PDCCH used to schedule the unicast system information (e.g., unicast OD-SIB1), i.e., the first PDCCH.

[0248] For example, if the uplink transmission feedback corresponding to the target uplink transmission indicates that the target PDCCH is activated, it means that the target uplink transmission successfully triggered the target PDCCH, and the UE can receive the corresponding PDCCH according to the network side instruction. If the uplink transmission feedback corresponding to the target uplink transmission indicates that the target PDCCH is not activated, it means that the target uplink transmission did not successfully trigger the target PDCCH.

[0249] For example, if the uplink transmission feedback corresponding to the target uplink transmission indicates activation of the SS associated with the target PDCCH, it means that the target uplink transmission successfully triggered the SS associated with the target PDCCH, and the UE can perform blind detection on the corresponding SS according to the network side instruction. If the uplink transmission feedback corresponding to the target uplink transmission indicates deactivation of the SS associated with the target PDCCH, it means that the target uplink transmission did not successfully trigger the SS associated with the target PDCCH.

[0250] For example, if the uplink feedback corresponding to the target uplink transmission indicates activation of the target RACH resource, it means that the target uplink transmission successfully triggered the target RACH resource, and the UE can perform random access on the target RACH resource according to the network side's instructions. If the uplink feedback corresponding to the target uplink transmission indicates deactivation of the target RACH resource, it means that the target uplink transmission failed to trigger the target RACH resource.

[0251] In this embodiment, if the uplink transmission feedback corresponding to the target uplink transmission is used to indicate the preamble identifier associated with the target uplink transmission, the target uplink transmission can be confirmed, that is, the terminal is notified that the network has successfully received the preamble associated with the target uplink transmission. If the uplink transmission feedback corresponding to the target uplink transmission is used to indicate any preamble identifier in the preamble identifier range associated with the target uplink transmission, the terminal can directly start receiving SIB1, which can reduce the signaling overhead of UE1 sending WUS (target uplink transmission). If the uplink transmission feedback corresponding to the target uplink transmission is used to indicate that the system information triggered by the target uplink transmission is broadcast system information or unicast system information, then the UE can determine whether the system information to be received is broadcast system information or unicast system information based on the uplink transmission feedback corresponding to the target uplink transmission. If the uplink transmission feedback corresponding to the target uplink transmission indicates activation-related content (e.g., activating the target PDCCH, activating the SS associated with the target PDCCH, or activating the target RACH resource), the terminal can receive the corresponding PDCCH according to the network side instruction, or perform blind detection on the corresponding SS, or perform random access on the activated target RACH resource, which can reduce the PDCCH listening latency, PDSCH reception latency, or random access latency. If the uplink transmission feedback corresponding to the target uplink transmission indicates activation of the SS associated with the target PDCCH, the terminal can determine that the SS to be monitored is the SS associated with the target PDCCH.

[0252] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission includes at least one of the following:

[0253] The target PDCCH;

[0254] Random Access Response (RAR);

[0255] The target PDCCH schedules the PDSCH;

[0256] The identifier of the preamble sequence corresponding to the target uplink transmission.

[0257] In this embodiment, at least one of the target PDCCH, the random access response (RAR), the PDSCH scheduled by the target PDCCH, and the preamble sequence identifier corresponding to the target uplink transmission can be directly used as the uplink transmission feedback corresponding to the target uplink transmission, thereby reducing the overhead of receiving information caused by separately introducing the uplink transmission feedback (e.g., WUS feedback) corresponding to the target uplink transmission.

[0258] In some embodiments, the method 200 further includes:

[0259] The terminal receives a target configuration, which includes at least one of the following:

[0260] The configuration of the target uplink transmission;

[0261] The receiving configuration of the target PDCCH may include at least one of the following: SS configuration, CORESET configuration;

[0262] The receiving configuration of the PDSCH scheduled by the target PDCCH;

[0263] The listening duration of the target PDCCH;

[0264] The reception duration of the PDSCH scheduled by the target PDCCH;

[0265] The uplink transmission feedback receiving configuration corresponding to the target uplink transmission may include at least one of the following: SS configuration, CORESET configuration, and listening duration configuration;

[0266] The offset between the starting position of the target PDCCH and the target reference point;

[0267] The offset between the receiving start position of the PDSCH scheduled by the target PDCCH and the target reference point;

[0268] The configuration of the target RACH resource may include, for example, at least one of the following: some or all of the parameters in the configuration of the public RACH resource RACH-ConfigCommon and the configuration of the private RACH resource RACH-ConfigDedicated;

[0269] Information related to the target community;

[0270] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0271] Carrier configuration or other information used to configure at least one of the following: carrier bandwidth, allowing associated frequency bands.

[0272] For example, the configuration of the target uplink transmission includes at least one of the following:

[0273] The configuration identifier of the target uplink transmission is used to identify one of multiple predefined uplink transmission configurations, and each uplink transmission configuration configures at least some parameters from the relevant parameter set of the target uplink transmission.

[0274] Send threshold value;

[0275] The association between the target uplink transmission resources and the requested target PDCCH; for example, the association between the target uplink transmission time-frequency resources and the target PDCCH; or the association between multiple time-frequency resources of the target uplink transmission and multiple target PDCCHs; or the association between multiple preamble sequence resources of the target uplink transmission and multiple target PDCCHs, wherein the preamble sequence resources include at least one of the following: preamble identifier range, preamble sequence format.

[0276] The minimum reference signal quality threshold for the target uplink transmission must be met.

[0277] Root Sequence Index;

[0278] The subcarrier spacing of the target uplink transmission;

[0279] RestrictedSetConfig configuration information;

[0280] Uplink frequency band information (frequencyBandList);

[0281] Absolute Frequency Point A;

[0282] Carrier offset (offsetToCarrier);

[0283] Maximum transmit power (p-Max);

[0284] Uplink common subcarrier spacing;

[0285] SSB power (ss-PBCH-BlockPower);

[0286] The beam identifier corresponding to SSB transmission (SSB-positionInBurst);

[0287] TDD configuration information (tdd-UL-DL-ConfigurationCommon);

[0288] PRACH configuration identifier (Prach-ConfigurationIndex);

[0289] The number of frequency domain transmission opportunities for the target uplink transmission;

[0290] The starting position of the frequency domain transmission timing of the target uplink transmission;

[0291] Configuration information for the zero-correlation zone (zeroCorrelationZoneConfig);

[0292] The target received power (preambleReceivedTargetPower) corresponding to the random access preamble;

[0293] The maximum number of transmissions of the random access preamble (preambleTransMax);

[0294] Power ramping step;

[0295] Information about the random access response window (ra-ResponseWindow);

[0296] Configuration information used to schedule PDCCH (such as Type 0 PDCCH) received by the SIB;

[0297] Configuration information used to schedule PDCCH (such as Type 1 PDCCH) received by RAR;

[0298] Configuration information for the PDCCH used to schedule the uplink transmission feedback corresponding to the target uplink transmission;

[0299] The number of SSBs associated with each Random Access Channel Occasion (RO);

[0300] SIB1 request cycle (e.g., sib1-RequestPeriod);

[0301] The sequence identifier of the random access preamble (ra-PreambleStartIndex);

[0302] Random access association period index (ra-AssociationPeriodIndex);

[0303] RO mask identifier (ra-ssb-OccasionMaskIndex);

[0304] Search for information in searchSpaceZero;

[0305] Information about control resource set 0 (controlResourceSetZero);

[0306] The search space corresponding to RAR (ra-SearchSpace);

[0307] Timing Advance (TA) value (n-TimingAdvanceOffset);

[0308] SSB cycle (SSB - Periodicity Serving Cell);

[0309] Subcarrier offset (k-ssb) of SSB relative to CRB 0 or PRB 0;

[0310] On-demand SIB1 transmission duration (e.g., od-sib1-duration);

[0311] The offset of the SIB1 time window (offsetToTimeWindow);

[0312] Offset relative to reference point A (offsetToPointA);

[0313] The number of times the target uplink transmission is repeated;

[0314] The number of times the target uplink transmission is repeated;

[0315] The relevant information of the time window corresponding to the repeated resources of the target uplink transmission, such as K SSB to WUS associated mode periods, where K is indicated by the network.

[0316] The target uplink transmission format; optionally, the target uplink transmission format can be a preamble format or other formats, which are not limited in this application.

[0317] The type of uplink transmission to the target, such as Msg1 / Msg3 / MsgA / preamble;

[0318] Information used to monitor Msg2 or RAR time windows;

[0319] Information used to monitor the time window of MsgB;

[0320] Information used to monitor the time window of the uplink transmission feedback corresponding to the target uplink transmission;

[0321] SIB1 transmission duration;

[0322] The duration of sending Msg2 or RAR;

[0323] The duration of MsgB's transmission;

[0324] UL BWP configuration;

[0325] Carrier bandwidth configuration;

[0326] The transmission duration of the uplink transmission feedback corresponding to the target uplink transmission;

[0327] The offset of the time-domain start position of the SIB transmission relative to the target reference point.

[0328] In this embodiment, the terminal can execute the target uplink transmission based on the configuration of the target uplink transmission. Optionally, in this embodiment, the terminal can also listen to at least one of the following based on the relevant parameter set of the target uplink transmission: PDCCH, Msg2 or RAR, SIB (such as SIB1) used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

[0329] For example, the receiving configuration of the PDSCH scheduled by the target PDCCH includes at least one of the following:

[0330] Time Domain Resource Allocation (TDRA);

[0331] Frequency Domain Resource Allocation (FDRA);

[0332] Modulation and Coding Scheme (MCS);

[0333] Redundancy Version (RV);

[0334] Virtual Resource Block to Physical Resource Block (VRB-to-PRB) mapping;

[0335] New Data Indicator (NDI);

[0336] Number of repeated transmissions;

[0337] Number of time units per PDSCH;

[0338] Information related to Transport Block (TB) scaling;

[0339] Information related to Physical Resource Block (PRB) scaling;

[0340] Power control related information.

[0341] For example, the uplink transmission feedback receiving configuration corresponding to the target uplink transmission includes at least one of the following: SS configuration, CORESET configuration, and listening duration configuration.

[0342] In this embodiment, the network-side device configures the UE with WUS transmission configuration, target PDCCH reception configuration, target PDSCH reception configuration, etc., so that the UE can transmit UL-WUS based on these configurations and receive the corresponding triggered target PDCCH and PDSCH.

[0343] In some embodiments, some or all of the information in the target configuration is configured or indicated by at least one of the following of the target cell:

[0344] MIB;

[0345] PBCH Layer 1 (L1) load;

[0346] RAR;

[0347] MsgB;

[0348] Msg4;

[0349] Paging messages;

[0350] System messages, such as SIB1 or OSI;

[0351] RRC;

[0352] Media Access Control (MAC) layer signaling;

[0353] For example, if the target PDCCH schedules a PDSCH, such as SIB1, then SIB1 can configure the resource configuration of the target RACH resource.

[0354] In this embodiment, by enriching the configuration or indication methods of some or all of the information in the target configuration, the flexibility of the network-side device in configuring or indicating some or all of the information in the target configuration for the terminal can be improved.

[0355] In some embodiments, S202 includes:

[0356] The terminal begins listening to the target PDCCH or begins receiving the PDSCH scheduled by the target PDCCH at at least one of the following locations:

[0357] It begins after the Xth time unit following the target reference point;

[0358] The first PDCCH timing of the target PDCCH begins after the target reference point;

[0359] The first PDCCH timing of the target PDCCH begins after the Yth time unit following the target reference point;

[0360] After the first timer started at the target reference point times out, the first PDCCH timing of the target PDCCH begins;

[0361] The first PDCCH timing of the target PDCCH begins after the latest target reference point among multiple target reference points;

[0362] The first PDCCH timing of the target PDCCH begins after the Zth time unit following the latest target reference point among multiple target reference points.

[0363] The time unit described in this embodiment is also called a time-domain resource unit. The time unit includes at least one of the following: Orthogonal Frequency Division Multiplexing (OFDM) symbol, time slot, micro-time slot, subframe, frame, second (s), millisecond (ms), etc.

[0364] In this embodiment, X can be agreed upon by a protocol, or X can be pre-configured or indicated by the network side.

[0365] In this embodiment, Y can be agreed upon by a protocol, or Y can be pre-configured or indicated by the network side.

[0366] The Z mentioned in this embodiment can be agreed upon by a protocol, or Z can be pre-configured or indicated by the network side.

[0367] In this embodiment, after the terminal sends the target uplink transmission, it can be determined that the terminal starts listening to the target PDCCH or starts receiving the PDSCH scheduled by the target PDCCH. Thus, the terminal can start listening to the target PDCCH or start receiving the PDSCH scheduled by the target PDCCH at the corresponding position, thereby improving the reception performance of the target PDCCH or the PDSCH scheduled by the target PDCCH.

[0368] In some embodiments, the target reference point includes any of the following:

[0369] First reference point;

[0370] The Ath time unit following the first reference point;

[0371] The first reference point includes any one of the following or the latest one of the following:

[0372] The time unit for sending the target uplink transmission;

[0373] The time unit for receiving the uplink transmission feedback corresponding to the target uplink transmission;

[0374] The start or end position of the receiving window corresponding to the uplink transmission feedback of the target uplink transmission;

[0375] The start or end position of the receiving window of the target PDCCH;

[0376] The start or end position of the receiving window of the PDSCH scheduled by the target PDCCH;

[0377] The time unit for successfully receiving or successfully decoding the PDCCH;

[0378] The time unit for successfully receiving or successfully decoding type 0PDCCH.

[0379] The time unit described in this embodiment is also called a time-domain resource unit. The time unit includes at least one of the following: Orthogonal Frequency Division Multiplexing (OFDM) symbol, time slot, micro-time slot, subframe, frame, second (s), millisecond (ms), etc.

[0380] In this embodiment, the A in the Ath time unit can be agreed upon by the protocol, or A can be pre-configured or indicated by the network side.

[0381] In this embodiment, when the first reference point includes the latest of a plurality of predefined reference units (e.g., including at least one of the following: the time unit for sending the target uplink transmission; the time unit for receiving the uplink transmission feedback corresponding to the target uplink transmission; the start or end position of the receiving window of the uplink transmission feedback corresponding to the target uplink transmission; the start or end position of the receiving window of the target PDCCH; the start or end position of the receiving window of the PDSCH scheduled by the target PDCCH; the time unit for successfully receiving or successfully decoding the PDCCH; the time unit for successfully receiving or successfully decoding type 0 PDCCH), unnecessary listening or receiving can be reduced, thereby achieving the purpose of UE power saving.

[0382] In some embodiments, S201 includes:

[0383] The terminal sends the target uplink transmission in at least one of the following situations:

[0384] Community re-selection;

[0385] Community selection;

[0386] The terminal has a service to transmit;

[0387] The reference signal measurement result of the serving cell is lower than the first threshold value. For example, the reference signal measurement result includes, but is not limited to: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), or Signal to Interference plus Noise Ratio (SINR).

[0388] The reference signal measurement result of the target cell is higher than the second threshold value. For example, the reference signal measurement result includes, but is not limited to: RSRP, RSRQ or SINR;

[0389] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0390] For example, if at least one of the following conditions is met: cell reselection occurs, cell selection occurs, the terminal has a service to transmit, the reference signal measurement result of the serving cell is lower than a first threshold, or the reference signal measurement result of the target cell is higher than a second threshold, the terminal sends the target uplink transmission:

[0391] In this embodiment, by restricting the terminal from sending the target uplink transmission, unnecessary transmission of the target uplink transmission can be reduced, thereby reducing signaling overhead.

[0392] Figure 9 This is a schematic flowchart of a wireless communication method 300 according to an embodiment of this application.

[0393] like Figure 9 As shown, the wireless communication method 300 may include:

[0394] S301, the network-side device receives a target uplink transmission, the target uplink transmission being used for at least one of the following:

[0395] Request the transmission of the target physical downlink control channel (PDCCH);

[0396] Request activation of the search space SS associated with the target PDCCH;

[0397] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0398] Request the activation of the target random access channel (RACH) resource;

[0399] The target PDCCH is scrambled by at least one of the following:

[0400] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0401] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0402] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0403] S302, the network-side device sends the target PDCCH, or the network-side device sends the PDSCH scheduled by the target PDCCH, or the network-side device responds to the random access performed by the terminal based on the target RACH resource.

[0404] In this embodiment, the target uplink transmission is used for at least one of the following: requesting the transmission of a target PDCCH, requesting the activation of an SS associated with the target PDCCH, and requesting the transmission of a PDSCH scheduled by the target PDCCH. Since the target PDCCH, the PDSCH scheduled by the target PDCCH, and the SS associated with the target PDCCH can all be used to transmit downlink information, the flexibility of the terminal in receiving downlink information can be improved, thereby reducing the latency of the terminal in receiving downlink information. When the target uplink transmission is used to request the activation of a target RACH resource, it is not necessary to wait for an available statically configured legacy RACH resource for a long time. The terminal can directly access the cell based on the activated target RACH resource, thereby reducing the latency of random access.

[0405] In some embodiments, the PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

[0406] In some embodiments, the target PDCCH includes at least one of the following:

[0407] The first PDCCH is used to schedule part or all of the information in the system information block.

[0408] The second PDCCH is used to schedule all information in the system information block.

[0409] The third PDCCH is used to schedule message 2Msg2 or message BMSgB;

[0410] The fourth PDCCH is used to activate the target RACH resource;

[0411] The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

[0412] In some embodiments, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are the same PDCCH; or, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are scrambled by the same RNTI or by different RNTIs; or, the SS associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain; or, the control resource set CORESET associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain.

[0413] In some embodiments, the first PDCCH is scrambled by any one of the following: the RA-RNTI, the SI-RNTI, and the first RNTI; or, the second PDCCH is scrambled by the SI-RNTI.

[0414] In some embodiments, the SS associated with the target PDCCH satisfies at least one of the following:

[0415] When the first PDCCH is scrambled by SI-RNTI, the SS associated with the first PDCCH is the first SS;

[0416] When the first PDCCH is scrambled by the RA-RNTI, the SS associated with the first PDCCH is a Random Access Response (RAR) SS or other types of SS;

[0417] When the first PDCCH is scrambled by the first RNTI, the SS associated with the first PDCCH is an SS of any type;

[0418] When the second PDCCH is scrambled by the SI-RNTI, the SS associated with the second PDCCH is SS0;

[0419] When the third PDCCH is scrambled by the RA-RNTI, the SS associated with the third PDCCH is RARSS;

[0420] The first SS is different from SS0.

[0421] In some embodiments, the period of the first SS is less than the period of the SS0, or the first SS and the SS0 do not overlap or overlap in the time-frequency domain.

[0422] In some embodiments, the method 300 further includes:

[0423] The network-side device performs at least one of the following:

[0424] Receive the first instruction information through the target cell;

[0425] Receive MsgB or Msg4;

[0426] The first indication information includes information indicating whether the terminal is allowed or not allowed to access the target cell;

[0427] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0428] In some embodiments, the PDSCH scheduled by the target PDCCH includes at least one of the following:

[0429] Part or all of the information in the system information block;

[0430] All information in the system information block;

[0431] Msg2 or MsgB;

[0432] The uplink transmission feedback corresponding to the target uplink transmission.

[0433] In some embodiments, the time-frequency resources of the target uplink transmission are associated with the target PDCCH; or, multiple time-frequency resources of the target uplink transmission are associated with multiple target PDCCHs; or, multiple preamble sequence resources of the target uplink transmission are associated with multiple target PDCCHs, wherein the preamble sequence resources include at least one of the following: a preamble identifier range and a preamble sequence format.

[0434] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission is used to indicate at least one of the following:

[0435] The preamble identifier associated with the target uplink transmission;

[0436] Any preamble identifier in the preamble identifier range associated with the target uplink transmission;

[0437] The system information triggered by the target uplink transmission is either broadcast system information or unicast system information;

[0438] Activate or deactivate the target PDCCH;

[0439] Activate or deactivate the SS associated with the target PDCCH;

[0440] Activate or deactivate the target RACH resource.

[0441] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission includes at least one of the following:

[0442] The target PDCCH;

[0443] Random Access Response (RAR);

[0444] The target PDCCH schedules the PDSCH;

[0445] The identifier of the preamble sequence corresponding to the target uplink transmission.

[0446] In some embodiments, the method 300 further includes:

[0447] The network-side device sends a target configuration, which includes at least one of the following:

[0448] The configuration of the target uplink transmission;

[0449] The target PDCCH reception configuration;

[0450] The receiving configuration of the PDSCH scheduled by the target PDCCH;

[0451] The listening duration of the target PDCCH;

[0452] The reception duration of the PDSCH scheduled by the target PDCCH;

[0453] The receiving configuration of the uplink transmission feedback corresponding to the target uplink transmission;

[0454] The offset between the starting position of the target PDCCH and the target reference point;

[0455] The offset between the receiving start position of the PDSCH scheduled by the target PDCCH and the target reference point;

[0456] The configuration of the target RACH resource;

[0457] Information related to the target community;

[0458] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0459] In some embodiments, some or all of the information in the target configuration is configured or indicated by at least one of the following of the target cell:

[0460] Master Information Block (MIB);

[0461] Physical Broadcast Channel PBCH Layer 1L1 Load;

[0462] RAR;

[0463] MsgB;

[0464] Msg4;

[0465] Paging messages;

[0466] System message;

[0467] Radio Resource Control (RRC);

[0468] Media access control MAC layer signaling;

[0469] The target PDCCH schedules the PDSCH.

[0470] In some embodiments, S302 includes:

[0471] The network-side device begins sending the target PDCCH or begins sending the PDSCH scheduled by the target PDCCH at at least one of the following locations:

[0472] It begins after the Xth time unit following the target reference point;

[0473] The first PDCCH timing of the target PDCCH begins after the target reference point;

[0474] The first PDCCH timing of the target PDCCH begins after the Yth time unit following the target reference point;

[0475] After the first timer started at the target reference point times out, the first PDCCH timing of the target PDCCH begins;

[0476] The first PDCCH timing of the target PDCCH begins after the latest target reference point among multiple target reference points;

[0477] The first PDCCH timing of the target PDCCH begins after the Zth time unit following the latest target reference point among multiple target reference points.

[0478] In some embodiments, the target reference point includes any of the following:

[0479] First reference point;

[0480] The Ath time unit following the first reference point;

[0481] The first reference point includes any one of the following or the latest one of the following:

[0482] The time unit for sending the target uplink transmission;

[0483] The time unit for receiving the uplink transmission feedback corresponding to the target uplink transmission;

[0484] The start or end position of the receiving window corresponding to the uplink transmission feedback of the target uplink transmission;

[0485] The start or end position of the receiving window of the target PDCCH;

[0486] The start or end position of the receiving window of the PDSCH scheduled by the target PDCCH;

[0487] The time unit for successfully receiving or successfully decoding the PDCCH;

[0488] The time unit for successfully receiving or successfully decoding type 0PDCCH.

[0489] In some embodiments, the target uplink transmission includes at least one of the following:

[0490] Message A Physical Random Access Channel Msg A PRACH

[0491] Message B Physical Random Access Channel Msg B PRACH

[0492] Message 1Msg1;

[0493] preamble sequence;

[0494] Message 3 Physical Uplink Shared Channel Msg 3PUSCH;

[0495] Uplink wake-up signal UL-WUS.

[0496] It should be understood that the wireless communication method 300 includes a process in which the network-side device sends or configures relevant information to the terminal. The terminology involved is similar to that of method 200. Therefore, the specific content can be referred to the relevant description in method 200. To avoid repetition, it will not be repeated here.

[0497] The wireless communication method provided in this application will be described below with reference to specific embodiments.

[0498] Example 1:

[0499] In this embodiment, as Figure 3 As shown, different preamble sequence resources can be divided for different WUS, and the preamble sequence resources include at least one of the following: preamble index range and preamble sequence format.

[0500] For example, different preamble identifier intervals can be defined for different WUS. If the preamble sequence identifier used by WUS1 is in interval 1, then WUS1 is used to request the transmission of the first PDCCH, which schedules the first PDSCH, including unicast OD-SIB1. If the preamble sequence identifier used by WUS2 is in interval 2, then WUS2 is used to request the transmission of the second PDCCH, which schedules the second PDSCH, including broadcast OD-SIB1. If the preamble sequence identifier used by WUS3 is in interval 3, then WUS3 is used to request the transmission of the third PDCCH, which schedules the third PDSCH, including at least one of unicast OD-SIB1 and Msg2 / MsgB. If the preamble sequence identifier used by WUS4 is in interval 4, then WUS4 is used to request the transmission of the fourth PDCCH, which is used to activate the target RACH resource. If the preamble sequence used by WUS5 is identified in interval 5, then WUS5 is used to request the transmission of the fifth PDCCH, and the fifth PDCCH schedules the feedback of WUS.

[0501] For example, different preamble sequence formats can be used for different WUS. If WUS1 uses format 1 as its preamble sequence format, then WUS1 is used to request the transmission of the first PDCCH, which schedules the first PDSCH, including unicast OD-SIB1. If WUS2 uses format 2 as its preamble sequence format, then WUS2 is used to request the transmission of the second PDCCH, which schedules the second PDSCH, including broadcast OD-SIB1. If WUS3 uses format 3 as its preamble sequence format, then WUS3 is used to request the transmission of the third PDCCH, which schedules the third PDSCH, including at least one of unicast OD-SIB1 and Msg2 / MsgB. If WUS4 uses format 4 as its preamble sequence format, then WUS4 is used to request the transmission of the fourth PDCCH, which is used to activate the target RACH resource. If the preamble sequence format used by WUS5 is format 5, then WUS5 is used to request the transmission of the fifth PDCCH, and the fifth PDCCH schedules the feedback of WUS.

[0502] The UE can send the corresponding WUS based on its needs, such as sending any one of WUS1 to WUS5.

[0503] The following is combined Figures 4 to 8 The solution of this embodiment will be described.

[0504] It should be understood that the more sparsely filled diagonal lines in the diagram represent the PDCCH occasions for scheduling broadcast OD-SIB1, while the more densely filled diagonal lines represent the PDCCH occasions for scheduling unicast OD-SIB1. In power-saving mode, the network side does not send information on these PDCCH occasions; it only sends the PDCCH at the corresponding location after receiving a request from the UE. The gray-filled PDCCH occasions can be active PDCCH occasions. It should be understood that "activation of request A" in this application can be replaced or understood as "activation of trigger A," "trigger A," "activation A," etc., and this application does not specifically limit it in this way.

[0505] The first main idea of ​​this embodiment is:

[0506] The first PDCCH of the first scheduled PDSCH (e.g., unicast OD-SIB1) is scrambled with RA-RNTI. The UE monitors the RAR SS (configured by WUS configuration) and receives the first PDSCH (unicast OD-SIB1) based on the first PDCCH. The second PDCCH of the second scheduled PDSCH (broadcast OD-SIB1) is still a Type 0 PDCCH, scrambled with SI-RNTI.

[0507] First PDSCH: Carries at least one of unicast OD-SIB1 or delta SIB1.

[0508] The definition of incremental SIB1: SIB1 that excludes some parameters already provided by the WUS configuration, and is not a complete SIB1. For example, if the WUS configuration provides parameters such as SSB power, SSB frequency, SSB period, and SSB-positionInBurst for the NES cell, then the incremental SIB1 may not include these parameters.

[0509] Second PDSCH: Carrying broadcast OD-SIB1.

[0510] Different types of UL-WUS are distinguished based on different preamble identifier ranges / preamble formats / RO resource configurations. These different types of UL-WUS allow UEs to request different information transmissions based on different needs (such as latency, service urgency, or cell access requirements). For example, the first type of UL-WUS requests the first PDSCH, and the UE listens for the scheduling information of the first PDSCH in the RAR SS. The first PDSCH contains at least incremental SIB1. The second type of WUS requests the second PDSCH (SIB1 scheduled by Type 0PDCCH), and the UE receives the broadcast OD-SIB1 scheduling information at the Type 0PDCCH location. This Type 0PDCCH is also scrambled by SI-RNTI.

[0511] like Figure 4 As shown, the UE sends the first type of UL-WUS, which triggers the activation of the PDCCH timing of the first PDCCH. The UE listens to the scheduling information of the first PDSCH during the PDCCH timing of the first PDCCH. The listening duration can be configured by WUS or agreed upon by the protocol.

[0512] like Figure 5 As shown, the UE sends the second type of UL-WUS, which triggers the activation of the PDCCH timing of the second PDCCH. The UE listens to the scheduling information of the second PDSCH during the PDCCH timing of the second PDCCH. The listening duration can be configured by WUS or agreed upon by the protocol.

[0513] from Figure 4 and Figure 5 The comparison shows that, Figure 5 In this process, the UE needs to wait for the PDCCH timing of type 0PDCCH before receiving the SIB1 scheduling information. Figure 4In this process, the UE can directly receive the PDCCH of the scheduled unicast OD-SIB1 at the PDCCH timing of the first PDCCH, which can reduce the latency of the UE receiving SIB1.

[0514] The second main idea of ​​this embodiment is:

[0515] The first PDCCH of the first PDSCH is scrambled with SI-RNTI, and a new SS (such as the first SS mentioned above) is configured. The new SS is triggered by UL-WUS and is a denser SS. (WUS configuration can configure the new SS, including period and MO position). Whether the new SS overlaps with SS0 can be configured by the network side, but if this unicast OD-SIB1 is an incremental SIB1, or its content is different from the broadcast OD-SIB1, it is preferable to avoid overlap. After the monitoring window ends within a certain period, it switches back to SS0, or it does not switch. This new SS is an additionally activated SS, triggered by UL-WUS, or triggered by RAR after RAR is present. Here, SS0 can also be called Type 0 PDCCH SS. Or, the SS0 is the SS used to monitor Type 0 PDCCH.

[0516] like Figure 6 As shown, the SS of scheduled broadcast OD-SIB1 and the SS of scheduled unicast OD-SIB1 do not overlap. UL-WUS triggers the first PDCCH, and the UE receives the first PDSCH (unicast OD-SIB1) based on the first PDCCH. Figure 6 In this process, the PDCCH timing of the first PDCCH is more frequent than that of the second PDCCH, which is more conducive to the UE receiving multiple SIB1 versions for soft merging and improving decoding performance.

[0517] like Figure 7 As shown, the PDCCH timing of the second PDCCH is always valid. The SS of the scheduled broadcast OD-SIB1 and the SS of the scheduled unicast OD-SIB1 do not overlap. UL-WUS triggers the first PDCCH. Based on the first PDCCH, the UE can additionally receive the first PDSCH (unicast OD-SIB1).

[0518] like Figure 8As shown, only one configuration of the PDCCH timing of the first PDCCH and the PDCCH timing of the second PDCCH can be valid at the same time. The SS of the scheduled broadcast OD-SIB1 and the SS of the scheduled unicast OD-SIB1 do not overlap. After UL-WUS triggers the first PDCCH, the configuration of the PDCCH timing of the second PDCCH becomes invalid. The UE can additionally receive the first PDSCH (unicast OD-SIB1) based on the first PDCCH.

[0519] The third main idea of ​​this embodiment is:

[0520] The first PDCCH of the first PDSCH is scrambled with a new RNTI. All UEs sending UL-WUS share the same common RNTI (e.g., the first RNTI mentioned above). The advantage is that multiple UEs sending UL-WUS can receive OD-SIB1 at the nearest PDCCH timing. If multiple UEs send UL-WUS before the same PDCCH timing, these multiple UEs can listen to OD-SIB1 on the same SS. The advantage is that the SS can be decoupled from the Type 0 PDCCH SS or RAR SS, and the DCI format can also be redesigned, making OD-SIB1 reception more flexible.

[0521] Example 2:

[0522] In this embodiment, as Figure 3 As shown, WUS3 is used to request the transmission of the third PDCCH, which schedules the third PDSCH, including unicast OD-SIB1 and Msg2 / MsgB.

[0523] The main idea of ​​this embodiment is:

[0524] WUS3 requests OD-SIB1 and Msg2. The network-side device receives WUS3 and sends a third PDCCH. The PDSCH scheduled by the third PDCCH includes both OD-SIB1 and Msg2 from the random access process.

[0525] The third PDCCH is scrambled by RA-RNTI. The UE monitors the RAR SS, where the RAR includes the delta SIB1 and the RAR (e.g., including Msg2 for random access). The UE decodes SIB1. After decoding SIB1, if it finds that it cannot camp, it terminates the RACH process and sends Msg3 (instructing the base station to terminate the process). If it can camp, it continues to receive Msg4.

[0526] In this embodiment, Msg2 can be received even if the UE has not yet determined whether it can camp. In other words, a UL grant will be assigned to the UE even if it has not yet determined whether it can camp. If it is determined that it cannot camp, the UE can ignore or not use the UL grant.

[0527] In this embodiment, since the UE needs to decode SIB1 and RAR (Msg2) before sending Msg3 after sending WUS3, the time required is longer than that required in the traditional (legacy) RACH process of only receiving Msg2. The UE can determine the timing of sending Msg3 based on the timing of decoding SIB1 to improve the efficiency of sending Msg3.

[0528] In this embodiment, the UE triggers the RACH procedure based on UL-WUS, saving the overhead of sending Msg1 in the traditional random access procedure.

[0529] Example 3:

[0530] In this embodiment, as Figure 3 As shown, WUS4 is used to request the transmission of the fourth PDCCH, which is used to activate the target RACH resource. The target RACH resource can be an RO, which can be understood as an additional RO resource relative to a traditional RO (e.g., an always-on RO). The configuration of the target RACH resource can be indicated by UE-specific OD-SIB1 or by the configuration of the target uplink transmission (e.g., UL-WUS). Optionally, the additional RO can be a one-shot RO, for example, valid only within a window.

[0531] The main idea of ​​this embodiment is:

[0532] WUS4 triggers the activation of OD-SIB1 and the target RACH resource.

[0533] The scenarios to which this embodiment is applicable are:

[0534] The always-on legacy RO is very sparse (e.g., 160ms). The UE triggers OD-SIB1 and needs to perform random access immediately when there is a service transmission.

[0535] The specific process of this embodiment may include:

[0536] Step 1: The UE receives configuration information sent by the network-side device. The configuration information includes relevant information about the target cell, the configuration of WUS4, the relevant configuration of the target RACH resources, and the reception configuration of SIB1 (such as the configuration of RNTI, SS, CORESET, etc.).

[0537] Step 2: When the UE meets the reselection conditions, send WUS4.

[0538] Step 3: The UE detects the target PDCCH (e.g., the target PDCCH is used to schedule unicast OD-SIB1) based on the SIB1 reception configuration, and receives the SIB1 scheduled by the target PDCCH, and initiates RACH on the activated target RACH resource after decoding SIB1.

[0539] Step 4: The process of UE performing random access.

[0540] The target RACH resource can be triggered by WUS4 or by the target PDCCH (DCI) of the scheduling SIB1. The configuration of the target RACH resource can be indicated by UE-specific OD-SIB1 (e.g., incremental SIB1) or by the configuration of WUS4.

[0541] In this embodiment, some target RACH resources can be configured immediately after the OD-SIB1, so that the UE can initiate RACH immediately after decrypting SIB1, thereby reducing random access latency.

[0542] The wireless communication method provided in this application can be executed by a wireless communication device. This application uses an example of a wireless communication device executing a wireless communication method to illustrate the wireless communication device provided in this application.

[0543] This application provides a wireless communication device. As an example, the wireless communication device may be a communication equipment or a component within a communication equipment, such as a chip. The communication equipment 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.

[0544] The wireless communication 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 general-purpose processors, special-purpose processors, etc., such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0545] For details, see Figure 10 When the wireless communication device is a terminal or a component within a terminal, the wireless communication device 400 includes:

[0546] The sending module 401 is configured to send a target uplink transmission, wherein the target uplink transmission is used for at least one of the following:

[0547] Request the transmission of the target physical downlink control channel (PDCCH);

[0548] Request activation of the search space SS associated with the target PDCCH;

[0549] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0550] Request the activation of the target random access channel (RACH) resource;

[0551] The target PDCCH is scrambled by at least one of the following:

[0552] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0553] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0554] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0555] The receiving module 402 or the processing module 403 are configured to either listen to the target PDCCH, receive the PDSCH scheduled by the target PDCCH, or perform random access based on the target RACH resources.

[0556] In some embodiments, the PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

[0557] In some embodiments, the target PDCCH includes at least one of the following:

[0558] The first PDCCH is used to schedule part or all of the information in the system information block.

[0559] The second PDCCH is used to schedule all information in the system information block.

[0560] The third PDCCH is used to schedule message 2Msg2 or message BMSgB;

[0561] The fourth PDCCH is used to activate the target RACH resource;

[0562] The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

[0563] In some embodiments, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are the same PDCCH; or, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are scrambled by the same RNTI or by different RNTIs; or, the SS associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain; or, the control resource set CORESET associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain.

[0564] In some embodiments, the first PDCCH is scrambled by any one of the following: the RA-RNTI, the SI-RNTI, and the first RNTI; or, the second PDCCH is scrambled by the SI-RNTI.

[0565] In some embodiments, the SS associated with the target PDCCH satisfies at least one of the following:

[0566] When the first PDCCH is scrambled by SI-RNTI, the SS associated with the first PDCCH is the first SS;

[0567] When the first PDCCH is scrambled by the RA-RNTI, the SS associated with the first PDCCH is a Random Access Response (RAR) SS or other types of SS;

[0568] When the first PDCCH is scrambled by the first RNTI, the SS associated with the first PDCCH is an SS of any type;

[0569] When the second PDCCH is scrambled by the SI-RNTI, the SS associated with the second PDCCH is SS0;

[0570] When the third PDCCH is scrambled by the RA-RNTI, the SS associated with the third PDCCH is RARSS;

[0571] The first SS is different from SS0.

[0572] In some embodiments, the period of the first SS is less than the period of the SS0, or the first SS and the SS0 do not overlap or overlap in the time-frequency domain.

[0573] In some embodiments, the processing module 403 is further configured to:

[0574] Based on the PDSCH scheduled by the third PDCCH, perform at least one of the following:

[0575] Determine whether access to the target cell is permitted;

[0576] If it is determined that access to the target cell is not permitted, the random access procedure shall be terminated.

[0577] Based on the timing of the information block in the decoding system, the timing for sending the first indication information is determined;

[0578] Residing in the target community;

[0579] Alternatively, the sending module 401 may also be used for:

[0580] Based on the PDSCH scheduled by the third PDCCH, send the first indication information to the target cell;

[0581] Alternatively, the receiving module 402 may also be used for:

[0582] Based on the PDSCH scheduled by the third PDCCH, receive MsgB or Msg4;

[0583] The first indication information includes information indicating whether the terminal is allowed or not allowed to access the target cell;

[0584] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0585] In some embodiments, the PDSCH scheduled by the target PDCCH includes at least one of the following:

[0586] Part or all of the information in the system information block;

[0587] All information in the system information block;

[0588] Msg2 or MsgB;

[0589] The uplink transmission feedback corresponding to the target uplink transmission.

[0590] In some embodiments, the time-frequency resources of the target uplink transmission are associated with the target PDCCH; or, multiple time-frequency resources of the target uplink transmission are associated with multiple target PDCCHs; or, multiple preamble sequence resources of the target uplink transmission are associated with multiple target PDCCHs, wherein the preamble sequence resources include at least one of the following: a preamble identifier range and a preamble sequence format.

[0591] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission is used to indicate at least one of the following:

[0592] The preamble identifier associated with the target uplink transmission;

[0593] Any preamble identifier in the preamble identifier range associated with the target uplink transmission;

[0594] The system information triggered by the target uplink transmission is either broadcast system information or unicast system information;

[0595] Activate or deactivate the target PDCCH;

[0596] Activate or deactivate the SS associated with the target PDCCH;

[0597] Activate or deactivate the target RACH resource.

[0598] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission includes at least one of the following:

[0599] The target PDCCH;

[0600] Random Access Response (RAR);

[0601] The target PDCCH schedules the PDSCH;

[0602] The identifier of the preamble sequence corresponding to the target uplink transmission.

[0603] In some embodiments, the receiving module 402 is further configured to:

[0604] Receive a target configuration, which includes at least one of the following:

[0605] The configuration of the target uplink transmission;

[0606] The target PDCCH reception configuration;

[0607] The receiving configuration of the PDSCH scheduled by the target PDCCH;

[0608] The listening duration of the target PDCCH;

[0609] The reception duration of the PDSCH scheduled by the target PDCCH;

[0610] The receiving configuration of the uplink transmission feedback corresponding to the target uplink transmission;

[0611] The offset between the starting position of the target PDCCH and the target reference point;

[0612] The offset between the receiving start position of the PDSCH scheduled by the target PDCCH and the target reference point;

[0613] The configuration of the target RACH resource;

[0614] Information related to the target community;

[0615] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0616] In some embodiments, some or all of the information in the target configuration is configured or indicated by at least one of the following of the target cell:

[0617] Master Information Block (MIB);

[0618] Physical Broadcast Channel PBCH Layer 1L1 Load;

[0619] RAR;

[0620] MsgB;

[0621] Msg4;

[0622] Paging messages;

[0623] System message;

[0624] Radio Resource Control (RRC);

[0625] Media access control MAC layer signaling;

[0626] The target PDCCH schedules the PDSCH.

[0627] In some embodiments, the receiving module 402 is specifically used for:

[0628] Start listening to the target PDCCH or start receiving the PDSCH scheduled by the target PDCCH at at least one of the following locations:

[0629] It begins after the Xth time unit following the target reference point;

[0630] The first PDCCH timing of the target PDCCH begins after the target reference point;

[0631] The first PDCCH timing of the target PDCCH begins after the Yth time unit following the target reference point;

[0632] After the first timer started at the target reference point times out, the first PDCCH timing of the target PDCCH begins;

[0633] The first PDCCH timing of the target PDCCH begins after the latest target reference point among multiple target reference points;

[0634] The first PDCCH timing of the target PDCCH begins after the Zth time unit following the latest target reference point among multiple target reference points.

[0635] In some embodiments, the target reference point includes any of the following:

[0636] First reference point;

[0637] The Ath time unit following the first reference point;

[0638] The first reference point includes any one of the following or the latest one of the following:

[0639] The time unit for sending the target uplink transmission;

[0640] The time unit for receiving the uplink transmission feedback corresponding to the target uplink transmission;

[0641] The start or end position of the receiving window corresponding to the uplink transmission feedback of the target uplink transmission;

[0642] The start or end position of the receiving window of the target PDCCH;

[0643] The start or end position of the receiving window of the PDSCH scheduled by the target PDCCH;

[0644] The time unit for successfully receiving or successfully decoding the PDCCH;

[0645] The time unit for successfully receiving or successfully decoding type 0PDCCH.

[0646] In some embodiments, the target uplink transmission includes at least one of the following:

[0647] Message A Physical Random Access Channel Msg A PRACH

[0648] Message B Physical Random Access Channel Msg B PRACH

[0649] Message 1Msg1;

[0650] preamble sequence;

[0651] Message 3 Physical Uplink Shared Channel Msg 3PUSCH;

[0652] Uplink wake-up signal UL-WUS.

[0653] In some embodiments, S201 includes:

[0654] The terminal sends the target uplink transmission in at least one of the following situations:

[0655] Community re-selection;

[0656] Community selection;

[0657] The terminal has a service to transmit;

[0658] The reference signal measurement result of the serving cell is lower than the first threshold value;

[0659] The reference signal measurement result of the target cell is higher than the second threshold value;

[0660] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0661] See Figure 11 When the wireless communication device is a network-side device or a component within a network-side device, the wireless communication device 500 includes:

[0662] Receiver module 501 is configured to receive target uplink transmission, wherein the target uplink transmission is used for at least one of the following:

[0663] Request the transmission of the target physical downlink control channel (PDCCH);

[0664] Request activation of the search space SS associated with the target PDCCH;

[0665] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0666] Request the activation of the target random access channel (RACH) resource;

[0667] The target PDCCH is scrambled by at least one of the following:

[0668] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0669] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0670] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0671] The sending module 502 or the processing module 503 are configured to send the target PDCCH, or send the PDSCH scheduled by the target PDCCH, or respond to the random access performed by the terminal based on the target RACH resource.

[0672] In some embodiments, the PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

[0673] In some embodiments, the target PDCCH includes at least one of the following:

[0674] The first PDCCH is used to schedule part or all of the information in the system information block.

[0675] The second PDCCH is used to schedule all information in the system information block.

[0676] The third PDCCH is used to schedule message 2Msg2 or message BMSgB;

[0677] The fourth PDCCH is used to activate the target RACH resource;

[0678] The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

[0679] In some embodiments, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are the same PDCCH; or, at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are scrambled by the same RNTI or by different RNTIs; or, the SS associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain; or, the control resource set CORESET associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlap or do not overlap in the time-frequency domain.

[0680] In some embodiments, the first PDCCH is scrambled by any one of the following: the RA-RNTI, the SI-RNTI, and the first RNTI; or, the second PDCCH is scrambled by the SI-RNTI.

[0681] In some embodiments, the SS associated with the target PDCCH satisfies at least one of the following:

[0682] When the first PDCCH is scrambled by SI-RNTI, the SS associated with the first PDCCH is the first SS;

[0683] When the first PDCCH is scrambled by the RA-RNTI, the SS associated with the first PDCCH is a Random Access Response (RAR) SS or other types of SS;

[0684] When the first PDCCH is scrambled by the first RNTI, the SS associated with the first PDCCH is an SS of any type;

[0685] When the second PDCCH is scrambled by the SI-RNTI, the SS associated with the second PDCCH is SS0;

[0686] When the third PDCCH is scrambled by the RA-RNTI, the SS associated with the third PDCCH is RARSS;

[0687] The first SS is different from SS0.

[0688] In some embodiments, the period of the first SS is less than the period of the SS0, or the first SS and the SS0 do not overlap or overlap in the time-frequency domain.

[0689] In some embodiments, the receiving module 501 is further configured to receive first indication information through a target cell; or the sending module 502 is further configured to send MsgB or Msg4;

[0690] The first indication information includes information indicating whether the terminal is allowed or not allowed to access the target cell;

[0691] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0692] In some embodiments, the PDSCH scheduled by the target PDCCH includes at least one of the following:

[0693] Part or all of the information in the system information block;

[0694] All information in the system information block;

[0695] Msg2 or MsgB;

[0696] The uplink transmission feedback corresponding to the target uplink transmission.

[0697] In some embodiments, the time-frequency resources of the target uplink transmission are associated with the target PDCCH; or, multiple time-frequency resources of the target uplink transmission are associated with multiple target PDCCHs; or, multiple preamble sequence resources of the target uplink transmission are associated with multiple target PDCCHs, wherein the preamble sequence resources include at least one of the following: a preamble identifier range and a preamble sequence format.

[0698] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission is used to indicate at least one of the following:

[0699] The preamble identifier associated with the target uplink transmission;

[0700] Any preamble identifier in the preamble identifier range associated with the target uplink transmission;

[0701] The system information triggered by the target uplink transmission is either broadcast system information or unicast system information;

[0702] Activate or deactivate the target PDCCH;

[0703] Activate or deactivate the SS associated with the target PDCCH;

[0704] Activate or deactivate the target RACH resource.

[0705] In some embodiments, the uplink transmission feedback corresponding to the target uplink transmission includes at least one of the following:

[0706] The target PDCCH;

[0707] Random Access Response (RAR);

[0708] The target PDCCH schedules the PDSCH;

[0709] The identifier of the preamble sequence corresponding to the target uplink transmission.

[0710] In some embodiments, the sending module 502 is further configured to:

[0711] Send the target configuration, which includes at least one of the following:

[0712] The configuration of the target uplink transmission;

[0713] The target PDCCH reception configuration;

[0714] The receiving configuration of the PDSCH scheduled by the target PDCCH;

[0715] The listening duration of the target PDCCH;

[0716] The reception duration of the PDSCH scheduled by the target PDCCH;

[0717] The receiving configuration of the uplink transmission feedback corresponding to the target uplink transmission;

[0718] The offset between the starting position of the target PDCCH and the target reference point;

[0719] The offset between the receiving start position of the PDSCH scheduled by the target PDCCH and the target reference point;

[0720] The configuration of the target RACH resource;

[0721] Information related to the target community;

[0722] The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

[0723] In some embodiments, some or all of the information in the target configuration is configured or indicated by at least one of the following of the target cell:

[0724] Master Information Block (MIB);

[0725] Physical Broadcast Channel PBCH Layer 1L1 Load;

[0726] RAR;

[0727] MsgB;

[0728] Msg4;

[0729] Paging messages;

[0730] System message;

[0731] Radio Resource Control (RRC);

[0732] Media access control MAC layer signaling;

[0733] The target PDCCH schedules the PDSCH.

[0734] In some embodiments, the sending module 502 is specifically used for:

[0735] The transmission of the target PDCCH or the PDSCH scheduled by the target PDCCH is started at at least one of the following locations:

[0736] It begins after the Xth time unit following the target reference point;

[0737] The first PDCCH timing of the target PDCCH begins after the target reference point;

[0738] The first PDCCH timing of the target PDCCH begins after the Yth time unit following the target reference point;

[0739] After the first timer started at the target reference point times out, the first PDCCH timing of the target PDCCH begins;

[0740] The first PDCCH timing of the target PDCCH begins after the latest target reference point among multiple target reference points;

[0741] The first PDCCH timing of the target PDCCH begins after the Zth time unit following the latest target reference point among multiple target reference points.

[0742] In some embodiments, the target reference point includes any of the following:

[0743] First reference point;

[0744] The Ath time unit following the first reference point;

[0745] The first reference point includes any one of the following or the latest one of the following:

[0746] The time unit for sending the target uplink transmission;

[0747] The time unit for receiving the uplink transmission feedback corresponding to the target uplink transmission;

[0748] The start or end position of the receiving window corresponding to the uplink transmission feedback of the target uplink transmission;

[0749] The start or end position of the receiving window of the target PDCCH;

[0750] The start or end position of the receiving window of the PDSCH scheduled by the target PDCCH;

[0751] The time unit for successfully receiving or successfully decoding the PDCCH;

[0752] The time unit for successfully receiving or successfully decoding type 0PDCCH.

[0753] In some embodiments, the target uplink transmission includes at least one of the following:

[0754] Message A Physical Random Access Channel Msg A PRACH

[0755] Message B Physical Random Access Channel Msg B PRACH

[0756] Message 1Msg1;

[0757] preamble sequence;

[0758] Message 3 Physical Uplink Shared Channel Msg 3PUSCH;

[0759] Uplink wake-up signal UL-WUS.

[0760] The apparatus provided in this application embodiment can achieve... Figures 2 to 9 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0761] like Figure 12 As shown in the illustration, this application also provides a communication device 600, including a processor 601 and a memory 602. The memory 602 stores programs or instructions that can run on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the various steps of the above-described wireless communication method embodiments and achieve the same technical effect. When the communication device 600 is a network-side device, the program or instructions executed by the processor 601 implement the various steps of the above-described wireless communication method embodiments and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0762] This application embodiment 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, for example... Figures 2 to 9 The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 10 The wireless communication device shown. Specifically, Figure 13 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0763] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0764] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 13 The terminal structure shown 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.

[0765] It should be understood that, in this embodiment, the input unit 704 may include a graphics processor 7041 and a microphone 7042. The graphics processor 7041 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 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 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.

[0766] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0767] The memory 709 can be used to store software programs or instructions, as well as various data. The memory 709 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 709 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 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0768] Processor 710 may include one or more processing units; optionally, processor 710 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 processor 710.

[0769] The radio frequency unit 701 is used to transmit the target uplink transmission, which is used for at least one of the following:

[0770] Request the transmission of the target physical downlink control channel (PDCCH);

[0771] Request activation of the search space SS associated with the target PDCCH;

[0772] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0773] Request the activation of the target random access channel (RACH) resource;

[0774] The target PDCCH is scrambled by at least one of the following:

[0775] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0776] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0777] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0778] The radio frequency unit 701 is also used to monitor the target PDCCH, or the radio frequency unit 701 is also used to receive the PDSCH scheduled by the target PDCCH, or the processor 710 is used to perform random access based on the target RACH resources.

[0779] In this embodiment, the target uplink transmission is used for at least one of the following: requesting the transmission of a target PDCCH, requesting the activation of an SS associated with the target PDCCH, and requesting the transmission of a PDSCH scheduled by the target PDCCH. Since the target PDCCH, the PDSCH scheduled by the target PDCCH, and the SS associated with the target PDCCH can all be used to transmit downlink information, the flexibility of the terminal in receiving downlink information can be improved, thereby reducing the latency of the terminal in receiving downlink information. When the target uplink transmission is used to request the activation of a target RACH resource, it is not necessary to wait for an available statically configured legacy RACH resource for a long time. The terminal can directly access the cell based on the activated target RACH resource, thereby reducing the latency of random access.

[0780] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiment 200 and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0781] This application embodiment also provides a network-side device, 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, for example... Figure 9 The steps of the method embodiment shown are illustrated. 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.

[0782] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 11The wireless communication device shown. (As shown) Figure 14 As shown, the network-side device 800 includes: an antenna 81, a radio frequency (RF) device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the RF device 82. In the uplink direction, the RF device 82 receives information through the antenna 81 and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the RF device 82. The RF device 82 processes the received information and transmits it through the antenna 81.

[0783] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0784] Baseband device 83 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 14 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 via a bus interface to call the program or instructions in the memory 85 to execute the network-side device operations shown in the above method embodiments.

[0785] The network-side device may also include a network interface 86, such as a Common Public Radio Interface (CPRI).

[0786] The radio frequency device 82 is used to receive target uplink transmissions, wherein the target uplink transmissions are used for at least one of the following:

[0787] Request the transmission of the target physical downlink control channel (PDCCH);

[0788] Request activation of the search space SS associated with the target PDCCH;

[0789] Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH;

[0790] Request the activation of the target random access channel (RACH) resource;

[0791] The target PDCCH is scrambled by at least one of the following:

[0792] Random Access Radio Network Temporary Identifier (RA-RNTI);

[0793] System message: Temporary Identifier for Wireless Networks (SI-RNTI)

[0794] First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI;

[0795] The radio frequency device 82 is also used to transmit the target PDCCH, or the radio frequency device 82 is also used to transmit the PDSCH scheduled by the target PDCCH, or the processor 84 is used to respond to random access performed by the terminal based on the target RACH resource.

[0796] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiment 300 and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0797] Furthermore, the network-side device 800 in this embodiment of the application also includes: a program or instructions stored in a memory 85 and executable on a processor 84, wherein the processor 84 calls the program or instructions in the memory 85 to execute. Figure 11 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0798] 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 wireless communication method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0799] 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.

[0800] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described wireless communication method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0801] 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.

[0802] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described wireless communication method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0803] This application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the wireless communication method described above, and the network-side device can be used to execute the steps of the wireless communication method described above.

[0804] 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.

[0805] 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 the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0806] 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 wireless communication method, characterized in that, include: The terminal sends a target uplink transmission, the target uplink transmission being used for at least one of the following: Request the transmission of the target physical downlink control channel (PDCCH); Request activation of the search space SS associated with the target PDCCH; Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH; Request the activation of the target random access channel (RACH) resource; The target PDCCH is scrambled by at least one of the following: Random Access Radio Network Temporary Identifier (RA-RNTI); System message: Temporary Identifier for Wireless Networks (SI-RNTI); First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI; The terminal listens to the target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH, or the terminal performs random access based on the target RACH resource.

2. The method according to claim 1, characterized in that, The PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

3. The method according to claim 1 or 2, characterized in that, The target PDCCH includes at least one of the following: The first PDCCH is used to schedule part or all of the information in the system information block. The second PDCCH is used to schedule all information in the system information block. The third PDCCH is used to schedule message 2Msg2 or message BMSgB; The fourth PDCCH is used to activate the target RACH resource; The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

4. The method according to claim 3, characterized in that, At least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are the same PDCCH; or At least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are scrambled by the same RNTI or by different RNTIs; or The SS associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlaps or does not overlap in the time-frequency domain; or The control resource sets CORESET associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH may or may not overlap in the time-frequency domain.

5. The method according to claim 3 or 4, characterized in that, The first PDCCH is scrambled by any one of the following: the RA-RNTI, the SI-RNTI, or the first RNTI; or The second PDCCH is scrambled by the SI-RNTI.

6. The method according to any one of claims 3 to 5, characterized in that, The SS associated with the target PDCCH satisfies at least one of the following: When the first PDCCH is scrambled by SI-RNTI, the SS associated with the first PDCCH is the first SS; When the first PDCCH is scrambled by the RA-RNTI, the SS associated with the first PDCCH is a Random Access Response (RAR) SS or other types of SS; When the first PDCCH is scrambled by the first RNTI, the SS associated with the first PDCCH is an SS of any type; When the second PDCCH is scrambled by the SI-RNTI, the SS associated with the second PDCCH is SS0; When the third PDCCH is scrambled by the RA-RNTI, the SS associated with the third PDCCH is RAR SS; The first SS is different from SS0.

7. The method according to claim 6, characterized in that, The period of the first SS is less than the period of the SS0, or the first SS and the SS0 do not overlap or overlap in the time-frequency domain.

8. The method according to any one of claims 3 to 7, characterized in that, The method further includes: The terminal performs at least one of the following based on the PDSCH scheduled by the third PDCCH: Determine whether access to the target cell is permitted; If it is determined that access to the target cell is not permitted, the random access procedure shall be terminated. Send the first instruction message to the target cell; Based on the timing of the information block in the decoding system, the timing for sending the first indication information is determined; Receive MsgB or Msg4; Residing in the target community; The first indication information includes information indicating whether the terminal is allowed or not allowed to access the target cell; The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

9. The method according to any one of claims 1 to 8, characterized in that, The target PDCCH scheduling PDSCH includes at least one of the following: Part or all of the information in the system information block; All information in the system information block; Msg2 or MsgB; The uplink transmission feedback corresponding to the target uplink transmission.

10. The method according to any one of claims 1 to 9, characterized in that, The time-frequency resources of the target uplink transmission are associated with the target PDCCH; or The target uplink transmission's multiple time-frequency resources are associated with multiple target PDCCHs; or The target uplink transmission of multiple preamble sequence resources is associated with multiple target PDCCHs, and the preamble sequence resources include at least one of the following: preamble identifier range and preamble sequence format.

11. The method according to any one of claims 1 to 10, characterized in that, The uplink transmission feedback corresponding to the target uplink transmission is used to indicate at least one of the following: The preamble identifier associated with the target uplink transmission; Any preamble identifier in the preamble identifier range associated with the target uplink transmission; The system information triggered by the target uplink transmission is either broadcast system information or unicast system information; Activate or deactivate the target PDCCH; Activate or deactivate the SS associated with the target PDCCH; Activate or deactivate the target RACH resource.

12. The method according to any one of claims 1 to 11, characterized in that, The uplink transmission feedback corresponding to the target uplink transmission includes at least one of the following: The target PDCCH; Random Access Response (RAR); The target PDCCH schedules the PDSCH; The identifier of the preamble sequence corresponding to the target uplink transmission.

13. The method according to any one of claims 1 to 12, characterized in that, The method further includes: The terminal receives a target configuration, which includes at least one of the following: The configuration of the target uplink transmission; The target PDCCH reception configuration; The receiving configuration of the PDSCH scheduled by the target PDCCH; The listening duration of the target PDCCH; The reception duration of the PDSCH scheduled by the target PDCCH; The receiving configuration of the uplink transmission feedback corresponding to the target uplink transmission; The offset between the starting position of the target PDCCH and the target reference point; The offset between the receiving start position of the PDSCH scheduled by the target PDCCH and the target reference point; The configuration of the target RACH resource; Information related to the target community; The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

14. The method according to claim 13, characterized in that, Some or all of the information in the target configuration is configured or indicated by at least one of the following of the target cell: Master Information Block (MIB); Physical Broadcast Channel PBCH Layer 1L1 Load; RAR; MsgB; Msg4; Paging messages; System message; Radio Resource Control (RRC); Media access control MAC layer signaling; The target PDCCH schedules the PDSCH.

15. The method according to any one of claims 1 to 14, characterized in that, The terminal listens to the target PDCCH, or the terminal receives the PDSCH scheduled by the target PDCCH, including: The terminal begins listening to the target PDCCH or begins receiving the PDSCH scheduled by the target PDCCH at at least one of the following locations: It begins after the Xth time unit following the target reference point; The first PDCCH timing of the target PDCCH begins after the target reference point; The first PDCCH timing of the target PDCCH begins after the Yth time unit following the target reference point; After the first timer started at the target reference point times out, the first PDCCH timing of the target PDCCH begins; The first PDCCH timing of the target PDCCH begins after the latest target reference point among multiple target reference points; The first PDCCH timing of the target PDCCH begins after the Zth time unit following the latest target reference point among multiple target reference points.

16. The method according to claim 13 or 15, characterized in that, The target reference point includes any of the following: First reference point; The Ath time unit following the first reference point; The first reference point includes any one of the following or the latest one of the following: The time unit for sending the target uplink transmission; The time unit for receiving the uplink transmission feedback corresponding to the target uplink transmission; The start or end position of the receiving window corresponding to the uplink transmission feedback of the target uplink transmission; The start or end position of the receiving window of the target PDCCH; The start or end position of the receiving window of the PDSCH scheduled by the target PDCCH; The time unit for successfully receiving or successfully decoding the PDCCH; The time unit for successfully receiving or successfully decoding type 0PDCCH.

17. The method according to any one of claims 1 to 16, characterized in that, The target uplink transmission includes at least one of the following: Message A Physical Random Access Channel Msg A PRACH Message B Physical Random Access Channel Msg B PRACH Message 1Msg1; preamble sequence; Message 3 Physical Uplink Shared Channel Msg 3PUSCH; Uplink wake-up signal UL-WUS.

18. The method according to any one of claims 1 to 17, characterized in that, The terminal sends the target uplink transmission, including: The terminal sends the target uplink transmission in at least one of the following situations: Community re-selection; Community selection; The terminal has a service to transmit; The reference signal measurement result of the serving cell is lower than the first threshold value; The reference signal measurement result of the target cell is higher than the second threshold value; The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

19. A wireless communication method, characterized in that, include: The network-side device receives a target uplink transmission, the target uplink transmission being used for at least one of the following: Request the transmission of the target physical downlink control channel (PDCCH); Request activation of the search space SS associated with the target PDCCH; Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH; Request the activation of the target random access channel (RACH) resource; The target PDCCH is scrambled by at least one of the following: Random Access Radio Network Temporary Identifier (RA-RNTI); System message: Temporary Identifier for Wireless Networks (SI-RNTI); First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI; The network-side device sends the target PDCCH, or the network-side device sends the PDSCH scheduled by the target PDCCH, or the network-side device responds to the terminal's random access based on the target RACH resource.

20. The method according to claim 19, characterized in that, The PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

21. The method according to claim 19 or 20, characterized in that, The target PDCCH includes at least one of the following: The first PDCCH is used to schedule part or all of the information in the system information block. The second PDCCH is used to schedule all information in the system information block. The third PDCCH is used to schedule message 2Msg2 or message BMSgB; The fourth PDCCH is used to activate the target RACH resource; The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

22. The method according to claim 21, characterized in that, At least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are the same PDCCH; or At least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH are scrambled by the same RNTI or by different RNTIs; or The SS associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH overlaps or does not overlap in the time-frequency domain; or The control resource sets CORESET associated with at least two of the first PDCCH, the second PDCCH, the third PDCCH, the fourth PDCCH, and the fifth PDCCH may or may not overlap in the time-frequency domain.

23. The method according to claim 21 or 22, characterized in that, The first PDCCH is scrambled by any one of the following: the RA-RNTI, the SI-RNTI, or the first RNTI; or The second PDCCH is scrambled by the SI-RNTI.

24. The method according to any one of claims 21 to 23, characterized in that, The SS associated with the target PDCCH satisfies at least one of the following: When the first PDCCH is scrambled by SI-RNTI, the SS associated with the first PDCCH is the first SS; When the first PDCCH is scrambled by the RA-RNTI, the SS associated with the first PDCCH is a Random Access Response (RAR) SS or other types of SS; When the first PDCCH is scrambled by the first RNTI, the SS associated with the first PDCCH is an SS of any type; When the second PDCCH is scrambled by the SI-RNTI, the SS associated with the second PDCCH is SS0; When the third PDCCH is scrambled by the RA-RNTI, the SS associated with the third PDCCH is RAR SS; The first SS is different from SS0.

25. The method according to claim 24, characterized in that, The period of the first SS is less than the period of the SS0, or the first SS and the SS0 do not overlap or overlap in the time-frequency domain.

26. The method according to any one of claims 21 to 25, characterized in that, The method further includes: The network-side device performs at least one of the following: Receive the first instruction information through the target cell; Send MsgB or Msg4; The first indication information includes information indicating whether the terminal is allowed or not allowed to access the target cell; The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

27. The method according to any one of claims 19 to 26, characterized in that, The target PDCCH scheduling PDSCH includes at least one of the following: Part or all of the information in the system information block; All information in the system information block; Msg2 or MsgB; The uplink transmission feedback corresponding to the target uplink transmission.

28. The method according to any one of claims 19 to 27, characterized in that, The time-frequency resources of the target uplink transmission are associated with the target PDCCH; or The target uplink transmission's multiple time-frequency resources are associated with multiple target PDCCHs; or The target uplink transmission of multiple preamble sequence resources is associated with multiple target PDCCHs, and the preamble sequence resources include at least one of the following: preamble identifier range and preamble sequence format.

29. The method according to any one of claims 19 to 28, characterized in that, The uplink transmission feedback corresponding to the target uplink transmission is used to indicate at least one of the following: The preamble identifier associated with the target uplink transmission; Any preamble identifier in the preamble identifier range associated with the target uplink transmission; The system information triggered by the target uplink transmission is either broadcast system information or unicast system information; Activate or deactivate the target PDCCH; Activate or deactivate the SS associated with the target PDCCH; Activate or deactivate the target RACH resource.

30. The method according to any one of claims 19 to 29, characterized in that, The uplink transmission feedback corresponding to the target uplink transmission includes at least one of the following: The target PDCCH; Random Access Response (RAR); The target PDCCH schedules the PDSCH; The identifier of the preamble sequence corresponding to the target uplink transmission.

31. The method according to any one of claims 19 to 30, characterized in that, The method further includes: The network-side device sends a target configuration, which includes at least one of the following: The configuration of the target uplink transmission; The target PDCCH reception configuration; The receiving configuration of the PDSCH scheduled by the target PDCCH; The listening duration of the target PDCCH; The reception duration of the PDSCH scheduled by the target PDCCH; The receiving configuration of the uplink transmission feedback corresponding to the target uplink transmission; The offset between the starting position of the target PDCCH and the target reference point; The offset between the receiving start position of the PDSCH scheduled by the target PDCCH and the target reference point; The configuration of the target RACH resource; Information related to the target community; The target cell includes at least one of the following: the cell that sends the target PDCCH, the cell that sends the PDSCH scheduled by the target PDCCH, the cell that receives the target uplink transmission, the cell that sends the target configuration, and the cell where the terminal is camped.

32. The method according to claim 31, characterized in that, Some or all of the information in the target configuration is configured or indicated by at least one of the following of the target cell: Master Information Block (MIB); Physical Broadcast Channel PBCH Layer 1L1 Load; RAR; MsgB; Msg4; Paging messages; System message; Radio Resource Control (RRC); Media access control MAC layer signaling; The target PDCCH schedules the PDSCH.

33. The method according to any one of claims 19 to 32, characterized in that, The network-side device sends the target PDCCH, or the network-side device sends the PDSCH scheduled by the target PDCCH, including: The network-side device begins sending the target PDCCH or begins sending the PDSCH scheduled by the target PDCCH at at least one of the following locations: It begins after the Xth time unit following the target reference point; The first PDCCH timing of the target PDCCH begins after the target reference point; The first PDCCH timing of the target PDCCH begins after the Yth time unit following the target reference point; After the first timer started at the target reference point times out, the first PDCCH timing of the target PDCCH begins; The first PDCCH timing of the target PDCCH begins after the latest target reference point among multiple target reference points; The first PDCCH timing of the target PDCCH begins after the Zth time unit following the latest target reference point among multiple target reference points.

34. The method according to claim 31 or 33, characterized in that, The target reference point includes any of the following: First reference point; The Ath time unit following the first reference point; The first reference point includes any one of the following or the latest one of the following: The time unit for sending the target uplink transmission; The time unit for receiving the uplink transmission feedback corresponding to the target uplink transmission; The start or end position of the receiving window corresponding to the uplink transmission feedback of the target uplink transmission; The start or end position of the receiving window of the target PDCCH; The start or end position of the receiving window of the PDSCH scheduled by the target PDCCH; The time unit for successfully receiving or successfully decoding the PDCCH; The time unit for successfully receiving or successfully decoding type 0PDCCH.

35. The method according to any one of claims 19 to 34, characterized in that, The target uplink transmission includes at least one of the following: Message A Physical Random Access Channel Msg A PRACH Message B Physical Random Access Channel Msg B PRACH Message 1Msg1; preamble sequence; Message 3 Physical Uplink Shared Channel Msg 3PUSCH; Uplink wake-up signal UL-WUS.

36. A wireless communication device, characterized in that, include: The sending module is configured to send a target uplink transmission, wherein the target uplink transmission is used for at least one of the following: Request the transmission of the target physical downlink control channel (PDCCH); Request activation of the search space SS associated with the target PDCCH; Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH; Request the activation of the target random access channel (RACH) resource; The target PDCCH is scrambled by at least one of the following: Random Access Radio Network Temporary Identifier (RA-RNTI); System message: Temporary Identifier for Wireless Networks (SI-RNTI); First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI; A receiving module or a processing module, wherein the receiving module is used to monitor the target PDCCH, or the receiving module is used to receive the PDSCH scheduled by the target PDCCH, or the processing module is used to perform random access based on the target RACH resource.

37. The apparatus according to claim 36, characterized in that, The PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

38. The apparatus according to claim 36 or 37, characterized in that, The target PDCCH includes at least one of the following: The first PDCCH is used to schedule part or all of the information in the system information block. The second PDCCH is used to schedule all information in the system information block. The third PDCCH is used to schedule message 2Msg2 or message BMSgB; The fourth PDCCH is used to activate the target RACH resource; The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

39. The apparatus according to any one of claims 36 to 38, characterized in that, The target PDCCH scheduling PDSCH includes at least one of the following: Part or all of the information in the system information block; All information in the system information block; Msg2 or MsgB; The uplink transmission feedback corresponding to the target uplink transmission.

40. The apparatus according to any one of claims 36 to 39, characterized in that, The time-frequency resources of the target uplink transmission are associated with the target PDCCH; or The target uplink transmission's multiple time-frequency resources are associated with multiple target PDCCHs; or The target uplink transmission of multiple preamble sequence resources is associated with multiple target PDCCHs, and the preamble sequence resources include at least one of the following: preamble identifier range and preamble sequence format.

41. A wireless communication device, characterized in that, include: A receiving module is configured to receive a target uplink transmission, wherein the target uplink transmission is used for at least one of the following: Request the transmission of the target physical downlink control channel (PDCCH); Request activation of the search space SS associated with the target PDCCH; Request the transmission of the Physical Downlink Shared Channel (PDSCH) scheduled by the target PDCCH; Request the activation of the target random access channel (RACH) resource; The target PDCCH is scrambled by at least one of the following: Random Access Radio Network Temporary Identifier (RA-RNTI); System message: Temporary Identifier for Wireless Networks (SI-RNTI); First Radio Network Temporary Identifier (RNTI), which is different from SI-RNTI; A sending module or a processing module, wherein the sending module is used to send the target PDCCH, or the sending module is used to send the PDSCH scheduled by the target PDCCH, or the processing module is used to respond to random access performed by the terminal based on the target RACH resource.

42. The apparatus according to claim 41, characterized in that, The PDSCH scheduled by the target PDCCH includes system information block 1SIB1.

43. The apparatus according to claim 41 or 42, characterized in that, The target PDCCH includes at least one of the following: The first PDCCH is used to schedule part or all of the information in the system information block. The second PDCCH is used to schedule all information in the system information block. The third PDCCH is used to schedule message 2Msg2 or message BMSgB; The fourth PDCCH is used to activate the target RACH resource; The fifth PDCCH is used to schedule the uplink transmission feedback corresponding to the target uplink transmission.

44. The apparatus according to any one of claims 41 to 43, characterized in that, The target PDCCH scheduling PDSCH includes at least one of the following: Part or all of the information in the system information block; All information in the system information block; Msg2 or MsgB; The uplink transmission feedback corresponding to the target uplink transmission.

45. The apparatus according to any one of claims 41 to 44, characterized in that, The time-frequency resources of the target uplink transmission are associated with the target PDCCH; or The target uplink transmission's multiple time-frequency resources are associated with multiple target PDCCHs; or The target uplink transmission of multiple preamble sequence resources is associated with multiple target PDCCHs, and the preamble sequence resources include at least one of the following: preamble identifier range and preamble sequence format.

46. ​​A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the wireless communication method as described in any one of claims 1 to 18.

47. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the wireless communication method as described in any one of claims 19 to 35.

48. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the wireless communication method as described in any one of claims 1 to 18, or implement the steps of the wireless communication method as described in any one of claims 19 to 35.

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