Information transmission method and apparatus, and electronic device and computer program product

Abstract

The present disclosure relates to the technical field of wireless communications. In particular, an information transmission method and apparatus, and an electronic device and a computer program product are provided. The method comprises: on the basis of a first system message, determining at least one first occasion, or on the basis of the first system message and a second system message, determining at least one first occasion, wherein the first system message is related to a beam; or on the basis of at least one of a third system message, a time-domain-related parameter of the third system message, and a time-domain-related parameter of a synchronization signal block (SSB), determining at least one first occasion; and performing information transmission at the at least one first occasion. In the present disclosure, a terminal device determines an information transmission occasion, and thus energy consumption waste caused by transmission failures and repeated transmissions of the terminal device is reduced.

Description

Information transmission method and apparatus, electronic device, and computer program product

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese patent application 202411010166.1 filed on July 26, 2024, the disclosure content of which is hereby incorporated by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to, but is not limited to, the field of communications, and in particular, to an information transmission method and apparatus, electronic device, and computer program product. BACKGROUND

[0004] In the prior art, the on-board processing capability of a low earth orbit (LEO) satellite is limited, and satellite beams cannot be activated simultaneously, resulting in the satellite being unable to simultaneously cover all satellite beam positions (usually referred to as spot beam positions) on the ground, and only a limited number of beam positions can be illuminated at a time; the beam positions illuminated at a time are referred to as active beams. In the above context, illumination can also be referred to as service or scanning, which are not distinguished in this case.

[0005] At RAN1 #116 of R19 NTN, a typical low-orbit satellite capability simulation assumption was proposed, i.e., for a 600 km altitude LEO satellite in the S band (2 GHz, subcarrier spacing SCS = 15 kHz), the maximum bandwidth of each beam is 5 MHz, the target coverage area is 1058 spot beam positions (50 km radius), but the satellite can simultaneously support a maximum of 16 active beams. For each active beam, the satellite can only do uplink service, only do downlink service, or simultaneously do uplink and downlink services. However, the satellite does not have the capability to simultaneously do uplink service on more than 16 active beams.

[0006] Therefore, when a terminal device (User Equipment, UE) wants to perform information transmission, but does not know when and on which beam positions the satellite is illuminated, the following problems can occur:

[0007] 1) Increase the probability of transmission failure, and even cause the UE to give up information transmission. If the selected beam position by the UE is not illuminated or is not a valid communication channel, the transmitted information can not be correctly received by the satellite; after the UE performs multiple transmissions, the transmission process is still not completed, and the UE understands that the information transmission has failed, at which time the UE can give up transmission.

[0008] 2) waste the energy consumption of the UE. Both downlink reception and uplink transmission by the UE will generate terminal energy consumption, and compared with downlink signal reception, uplink signal transmission will generate more terminal energy consumption. When the satellite illuminates other wave positions, the UE also tries to transmit information, which will waste a lot of energy consumption to try to transmit information that will not actually be received by the satellite, which is not conducive to the energy saving of the UE and will seriously affect the endurance of the mobile phone. SUMMARY

[0009] The present disclosure is proposed in view of the above problems. The present disclosure provides an information transmission method, device, electronic equipment and computer program product.

[0010] According to one aspect of the present disclosure, an information transmission method is provided, applied to a terminal device, the method comprising: determining at least one first occasion according to a first system message, or determining at least one first occasion according to the first system message and a second system message, wherein the first system message is related to a beam; or determining at least one first occasion according to at least one of a third system message, a time domain related parameter of the third system message, a time domain related parameter of a synchronization signal block (SSB); and performing information transmission at the at least one first occasion.

[0011] According to another aspect of the present disclosure, an information transmission method is provided, applied to a network device, the method comprising: transmitting at least one of a first system message, a second system message, a third system message, a synchronization signal block (SSB) to a terminal device, wherein the first system message is related to a beam; and performing information transmission at at least one first occasion, wherein the at least one first occasion is determined according to one or more of the first system message, the second system message, the third system message, a time domain related parameter of the third system message, a time domain related parameter of the SSB.

[0012] According to still another aspect of the present disclosure, an information transmission device is provided, the device comprising: a determination module configured to determine at least one first occasion according to a received first system message, or determine at least one first occasion according to the first system message and a second system message, wherein the first system message is related to a beam; or determine at least one first occasion according to at least one of a third system message, a time domain related parameter of the third system message, a time domain related parameter of a synchronization signal block (SSB); and a transmission module configured to perform information transmission at the at least one first occasion.

[0013] According to another aspect of this disclosure, an information transmission apparatus is provided, comprising: a transmitting module for transmitting to a terminal at least one of a first system message, a second system message, a third system message, a time-domain correlation parameter of the third system message, and a time-domain correlation parameter of an SSB, wherein the first system message is beam-correlated; a determining module for determining at least one first timing based on one or more of the first system message, the second system message, the third system message, the time-domain correlation parameter of the third system message, and the time-domain correlation parameter of the SSB; and a transmitting module for transmitting the information at at least one first timing.

[0014] According to another aspect of this disclosure, an electronic device is provided, comprising: a memory for storing computer-readable instructions; and a processor for executing the computer-readable instructions, causing the electronic device to perform the information transmission method described above.

[0015] According to another aspect of this disclosure, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, it implements the information transmission method as described above.

[0016] As will be described in detail below, the information transmission method according to embodiments of the present disclosure reduces energy waste caused by terminal device transmission failures and repeated transmissions by allowing the terminal device to determine the timing of information transmission.

[0017] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0018] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or operations.

[0019] Figure 1 is a schematic diagram illustrating a communication system provided according to an embodiment of the present disclosure.

[0020] Figure 2 is a schematic diagram illustrating an SSB time-frequency structure provided in related technologies.

[0021] Figure 3 is a schematic diagram illustrating a half-frame intra-SSB mode provided in related technologies.

[0022] Figure 4 is a schematic diagram illustrating an active beam provided in related technologies.

[0023] Figure 5 is a schematic diagram illustrating SSB repeated transmission according to related technologies.

[0024] Figure 6 is a schematic diagram illustrating SSB clustering transmission based on related technologies.

[0025] Figure 7 is a schematic diagram illustrating the problems existing in SSB repeated transmission according to related technologies.

[0026] Figure 8 is a flowchart illustrating an information transmission method according to an embodiment of the present disclosure.

[0027] Figure 9 is a flowchart further illustrating an information transmission method according to an embodiment of the present disclosure.

[0028] Figure 10 is a schematic diagram illustrating a random access configuration table based on related technologies.

[0029] Figure 11 is a schematic diagram illustrating an information transmission device according to an embodiment of the present disclosure.

[0030] Figure 11-1 is a schematic diagram illustrating the determining module according to an embodiment of the present disclosure.

[0031] Figure 12 is a schematic diagram of an information transmission device according to an embodiment of the present disclosure.

[0032] Figure 13 is a hardware block diagram illustrating an electronic device according to an embodiment of the present disclosure.

[0033] Figure 14 is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.

[0035] First, the embodiments disclosed herein can be applied to various communication systems, such as: satellite communication systems, Global System of Mobile communication (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Advanced Long Term Evolution (LTE-A) systems, New Radio (NR) systems, evolution systems of NR systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication systems, or other communication systems, etc.

[0036] Satellite communication systems include transparent and non-transparent satellite architectures. Transparent transmission, also known as bend-tube relay transmission, means that the signal only undergoes frequency conversion and amplification on the satellite; the satellite is transparent to the signal. Non-transparent transmission, also known as regenerative (on-board access / processing) transmission, means that the satellite has some or all of the base station functions. When the satellite operates in transparent mode, it has relay forwarding capabilities. Gateway stations have base station functions or some base station functions. In some embodiments, gateway stations can be considered as ground base stations, or ground base stations can be deployed separately from gateway stations. When the satellite operates in regenerative mode, it has data processing capabilities, base station functions, or some base station functions, and can be considered as a base station.

[0037] The satellite can be a LEO satellite, a non-geostationary earth orbit (NGEO) satellite, etc. The satellite can provide communication, navigation, and positioning services to terminal devices through multiple beams. The satellite uses multiple beams to cover the service area, and different beams can communicate through one or more of time division, frequency division, and space division. The satellite communicates wirelessly with terminal devices through broadcast communication signals and navigation signals, and can also communicate wirelessly with ground station equipment. The satellite mentioned in this disclosure can be a satellite base station, or it may include an orbital receiver or repeater for relaying information, or network-side equipment mounted on the satellite.

[0038] The communication system 100 used in this embodiment is shown in FIG1. ​​The communication system 100 may include a network device 110, which may be a device communicating with a terminal device 120 (or referred to as a communication terminal, terminal). The network device 110 may be a satellite and a gateway station, used to provide communication services to the terminal device 120. The gateway station may also be referred to as a ground station, signaling station, etc. The link between the satellite and the terminal device is called a service link, and the link between the satellite and the gateway station is called a feeder link.

[0039] For example, in a 5G communication system, ground terminal equipment accesses the network through the 5G New Radio interface, while 5G network equipment is deployed on satellites and connected to the ground core network equipment via wireless links. Simultaneously, wireless links exist between satellites to facilitate signaling interaction and user data transmission between network devices.

[0040] Figure 1 exemplarily illustrates a network device and two terminal devices. In some embodiments, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This disclosure does not limit the scope of the embodiments.

[0041] In some embodiments, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this disclosure.

[0042] It should be understood that devices with communication functions in the network / system of this disclosure embodiment can be referred to as communication devices. Taking the communication system 100 shown in FIG1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 can be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities. This disclosure embodiment does not limit this.

[0043] The terminal device in this disclosure can also be referred to as User Equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc. The terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, and next-generation communication system, such as a terminal device in an NR network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0044] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0045] The network device in this disclosure can be any wireless transceiver device used to communicate with terminal devices. It can be a network device deployed on a satellite or a network device deployed on the ground. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a vehicle-mounted device, wearable device, or a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, etc.

[0046] In this embodiment of the disclosure, the network device provides services to the cell, and the terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0047] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. It should also be understood that "instruction" mentioned in the embodiments of this disclosure can be a direct instruction, an indirect instruction, or an indication of a related relationship. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, B can be obtained through C; or it can mean that there is a related relationship between A and B. It should also be understood that "correspondence" mentioned in the embodiments of this disclosure can indicate a direct or indirect correspondence between two things, or an related relationship between two things, or a relationship of instruction and being instructed, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this disclosure can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this disclosure does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this disclosure, the "protocol" can refer to standard protocols in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems, and this disclosure does not limit it.

[0048] To facilitate understanding of the technical solutions of the embodiments of this disclosure, the related technologies of the embodiments of this disclosure are described below. The following related technologies are as implementation methods and can be combined with the technical solutions of the embodiments of this disclosure in any way, and they all fall within the protection scope of the embodiments of this disclosure.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to be limiting of this disclosure.

[0050] Before explaining this disclosure, the following description is given regarding synchronization signal blocks in the related art:

[0051] Figure 2 is a schematic diagram of an SSB (SS / PBCH block) time-frequency structure provided in related technologies. As shown in Figure 2, the SSB consists of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH). One SSB occupies four Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain, with OFDM symbol numbers from 0 to 3; in the frequency domain, it occupies 240 subcarriers, with subcarrier numbers from 0 to 239. The PSS is located in the middle 127 subcarriers of symbol 0. The SSS is located in the middle 127 subcarriers of symbol 2. To protect the PSS and SSS, they are each connected to different subcarriers at their ends (Set to 0). The PBCH is located in symbols 1, 2, and 3. It occupies all subcarriers from 0 to 239 on symbols 1 and 3, and all subcarriers except those occupied by the SSS and the guard subcarrier Set 0 on symbol 2. The DM-RS is located in the middle of the PBCH, on symbols 1 and 3, with 60 DM-RS per symbol, spaced 4 subcarriers apart. Table 1 records the resources within an SS / PBCH block for PSS, SSS, PBCH, and DM-RS for PBCH.

[0052] Table 1

[0053] in, The Physical Layer Cell Identity (PCI) represents the physical layer cell identity within a cell; that is, the position of a DM-RS symbol of a PBCH in the frequency domain is related to the cell's PCI. k and l represent the frequency domain index and time domain index within the SSB, respectively.

[0054] Within a half-frame containing multiple SSBs (the multiple SSBs within a half-frame are called the SSB set), the candidate SSBs range from 0 to... Number them in ascending order; among them... Characterizes the maximum number of SSBs in an SSB cycle; The value is determined based on the SSB mode. SSB has five transmission modes: Case A, Case B, Case C, Case D, and Case E, and it is always transmitted in the first half of a radio frame. Depending on the frequency range, sub-carrier spacing (SCS), and other parameters, NR SSB will transmit in various different modes.

[0055] Figure 3 is a schematic diagram of a half-frame intra-SSB mode provided in the related technology; as shown in Figure 3, SCS = 15kHz, carrier frequency f <= 3GHz, or f > 3GHz and f <= 6GHz, corresponds to SSB mode Case A. SCS = 30kHz, carrier frequency f <= 3GHz, or f > 3GHz and f <= 6GHz, corresponds to SSB mode Case B. For SSB mode Case A, when f <= 3GHz, When f > 3GHz and f <= 6GHz

[0056] It should be noted that in Figure 3, one frame corresponds to 10ms, and half a frame corresponds to 5ms. The quadrilateral borders corresponding to each 10ms frame in Figure 3 represent the time domain horizontally and the frequency domain vertically.

[0057] For a half frame with SS / PBCH blocks, the first symbol indexes for candidate SS / PBCH blocks are determined according to the SCS of SS / PBCH blocks as follows, where index 0 corresponds to the first symbol of the first slot in a half-frame.

[0058] For Case A with SCS = 15kHz: the index of the first symbol of the candidate SS / PBCH block is {2,8} + 14·n; for carrier frequencies smaller than or equal to 3GHz, n = 0,1; for carrier frequencies within FR1 larger than 3GHz, n = 0,1,2,3.

[0059] For initial cell selection, a UE may assume that half frames with SS / PBCH blocks occur with a periodicity of 2 frames.

[0060] The periodicity of the half-frames received by the UE can be configured per serving cell by the higher-layer signaling ssb-periodicityServingCell for the reception of the SS / PBCH blocks for the serving cell. For example, ssb-periodicityServingCell can be configured to 5ms, 10ms, 20ms, 40ms, 80ms, or 160ms.

[0061] If the UE is not configured with a periodicity of the half frames for receiving the SS / PBCH blocks, the UE assumes that the periodicity is one half frame.

[0062] The UE assumes that the periodicity is the same for all SS / PBCH blocks in the serving cell.

[0063] Satellite communication primarily serves areas such as oceans, deserts, and remote regions where terrestrial communication networks cannot cover. Therefore, terminals need to be able to directly access satellite networks without terrestrial network assistance, and all ground spot positions need to have random access capability. Due to the limited onboard processing power of low-Earth orbit (LEO) satellites, such as limited power and a limited number of channels, satellites cannot simultaneously cover all ground spot positions; they can only illuminate a limited number of spot positions at a time. The beam used to illuminate a spot position each time is called the active beam, and the satellite's active beam serves different spot positions each time. For example, Figure 4 is a schematic diagram of an active beam provided in related technologies; in Figure 4, circles represent each spot position (satellite beam, or spot beam); yellow circles represent spot positions served by the satellite's active beam. As can be seen from Figure 4, the corresponding LEO satellite's active beam can only illuminate 4 spot positions simultaneously. Note that spot beams are sometimes also called satellite beams, beam footprints, or simply beams, or other beam-related terms, which are not limited to this one.

[0064] It should be noted that, as an example, for an S-band (2GHz, SCS=15kHz) LEO satellite at an altitude of 600km, the maximum bandwidth of each beam is 5MHz, and the target coverage area is 1058 spot positions (50km radius). However, the satellite can only support a maximum of 16 active beams simultaneously. According to relevant protocols, for S-band (2GHz) and SCS=15kHz, the SSB mode is Case A, with only 4 SSBs within each 5ms half-frame. Table 2 records the relevant parameters for the LEO 600km Set1-2 Frequency Range (FR) 1.

[0065] Table 2

[0066] At the Radio Access Network (RAN) 1#116 meeting of Release (R) 19 Non-Terrestrial Networks (NTN), a simulation assumption for low-Earth orbit satellite capabilities (taking the S-band as an example) was proposed, as shown in Table 2. Figure 5 is a schematic diagram of SSB repetitive transmission provided in related technologies. In Figure 5, each group of red and green bar signal blocks represents an SSB, and a half-frame (5ms) in a 20ms period includes 4 SSBs with indices 0, 1, 2, and 3, i.e., SSB#0, SSB#1, SSB#2, and SSB#3. In Figure 2, the SSB in the red ellipse is SSB#0, and the SSB in the blue ellipse is SSB#3. Assume the satellite transmits SSBs using all 16 active beams, namely active beam #1, active beam #2, active beam #3, ..., active beam #16 in Figure 5. For each active beam, 4 SSBs are transmitted every 20ms. Each SSB transmitted by each active beam covers one spot beam. For example, active beam #1 transmits 4 SSBs every 20ms, and active beam #16 transmits 4 SSBs. In the first 20ms, the 4 SSBs transmitted by active beam #1 cover spot beams #1, #2, #3, and #4 respectively; in the first 20ms, the 4 SSBs transmitted by active beam #2 cover spot beams #5, #6, #7, and #8 respectively; ...; in the first 20ms, the 4 SSBs transmitted by active beam #16 cover spot beams #61, #62, #63, and #64 respectively; in the second 20ms, the 4 SSBs transmitted by active beam #1 cover spot beams #65, #66, #67, and #68 respectively; and so on. Each active beam is repeated for the first period of the SSB.

[0067] For example, as shown in Figure 5, let's assume that spot beam #x is associated with active beam #1, and active beam #1 has a first period P SSB The SSB retransmission cycle is overridden by the first SSB within a certain 20ms period; spot beam#y is associated with active beam#16, and active beam#16 also has the first cycle as its retransmission cycle, overridden by the fourth SSB within a certain 20ms period.

[0068] The satellite repeatedly covers the same spot position every first cycle; that is, from the perspective of a UE at a given spot position, the period of a half-frame containing the SSB is the first cycle. It should be noted that every 20ms, the satellite can simultaneously serve a maximum of 16*4=64 spot positions. Therefore, in the first cycle, a total of 64*first cycle / 20ms spot positions can be served. To cover 1058 spot positions, i.e., 64*first cycle / 20ms>=1058, we can obtain...

[0069] The SSB retransmission period (i.e., the first period) is typically a power of 2 for the number of radio frames to ensure that the SSB retransmission period is divisible by the radio frame period (10240ms). For example, the SSB retransmission period can be 320ms (ensuring 94% coverage) or 640ms (ensuring 100% coverage). In other words, in SSB retransmission mode, network devices sequentially transmit multiple SSBs at multiple spot positions according to the first period via the active beam of the satellite. Different SSBs correspond to different spot positions, and the active beam of the satellite repeatedly covers the same spot position according to the first period. It should be noted that from the perspective of a terminal at a certain spot position, an excessively large SSB half-frame period will make it difficult to support the soft combining of multiple SSBs, posing a significant challenge to the coverage capability of the NTN network. Therefore, related technologies also provide an SSB clustering transmission technique. Figure 6 shows an example of SSB clustering transmission. As shown in Figure 6, each SSB cluster corresponds to a dotted spectral position, and each SSB cluster includes N (e.g., N=4) SSBs with the same index. The interval between adjacent SSBs in an SSB cluster is the second period (e.g., 20ms), which can also be called the second duration. The third period of two adjacent SSB clusters corresponding to the same dotted spectral position is P. revisit (e.g., 1.36s). For example, in Figure 6, SSB#1 corresponds to dotted wave position #x. In Figure 6, the four SSBs within a half-frame (5ms) correspond to different dotted wave positions. That is, in the SSB clustering transmission mode, each SSB cluster includes at least two SSBs corresponding to the same dotted wave position, the interval between adjacent SSBs in each SSB cluster is the second period, and the interval between two adjacent SSB clusters corresponding to the same dotted wave position is the third period (P). revisit In some embodiments, the second period is the period P of a half-frame containing the SSB. SSB (e.g., 20ms), different SSBs within a certain second period correspond to different spot positions. For each spot position, the network device follows the third period (P... revisitThe network device sends SSB clusters to this point wavelength, wherein the network device sends SSBs to this point wavelength in the first window within each third cycle. The first window includes N half-frames for sending SSBs (i.e., the length of the first window is N*P). SSB N is a positive integer greater than 1. From the perspective of the terminal located at a certain point position, the terminal receives SSB in the first window. The first window contains N half-frames for receiving SSB (as shown in Figure 6, the N half-frames for receiving SSB in the first window may not be continuous).

[0070] In this way, since the relative positions of the N (e.g., N=4) SSBs in an SSB cluster are the same as those in the terrestrial network, satellite terminals with terrestrial terminal capabilities can easily merge and decode the MIB messages carried in these N SSBs, thereby improving the coverage capability of the NTN network.

[0071] Based on the assumptions of the two SSB transmission methods mentioned above, the existing information transmission methods cannot well support NTN beam-hopping scenarios, which is detrimental to terminal energy saving and / or saving network overhead. From the terminal side perspective, information transmission includes at least one of the following: receiving system information, receiving PDCCH, receiving PDSCH, receiving downlink reference signals, sending random access information, sending PUCCH, sending PUSCH, and sending uplink reference signals. From the base station side perspective, information transmission includes at least one of the following: sending system information, sending PDCCH, sending PDSCH, sending downlink reference signals, receiving random access information, receiving PUCCH, receiving PUSCH, and receiving uplink reference signals.

[0072] The following uses the transmission of system information as an example to illustrate the problems of downlink transmission in the existing technology. From the perspective of the terminal, downlink transmission includes at least one of receiving system information, receiving PDCCH, receiving PDSCH, and receiving downlink reference signal.

[0073] Control resource set 0 (CORESET 0), also known as CORESET for Type 0-PDCCH CSS set, is used to carry the PDCCH and DCI of System Information Block 1 (SIB1). User equipment (UE, also known as terminal) determines the search space of CORESET 0 based on the Master Information Block (MIB), and then determines the set of monitoring occasions for the Physical downlink control channel (PDCCH).

[0074] According to existing technologies, for a subcarrier spacing (SCS) of 15kHz, only CORESET multiplexing pattern 1 is supported (i.e., the synchronization signal block (SSB) and CORESET are multiplexed using time division multiplexing (TDM). For a numbered... The candidate SSB has a System Frame Number (SFN) of SFN. C The two time slots numbered n0 and n0+1 within the frame include the listening time for Type 0 PDCCH (Type 0-PDCCH). The UE will listen for PDCCH in the Type 0-PDCCH Common Search Space (CSS) in these two time slots.

[0075] And SFN C The following relationship must be satisfied:

[0076] Even frames

[0077] Odd frames

[0078] This represents the number of time slots included in the frame. The values ​​of parameters O and M can be determined according to relevant tables in the prior art, where u represents the SCS configuration.

[0079] In CORESET 0, the UE listens for DCI format 1_0 scrambled with System Information RNTI (SI-RNTI) to obtain scheduling information for the Physical Downlink Shared Channel (PDSCH) carrying SIB1. SIB1 is transmitted on the Downlink Shared Channel (DL-SCH) with a period of 160ms and a variable transmission repetition period within 160ms. The default transmission repetition period for SIB1 is 20ms, but the actual transmission repetition period depends on network implementation. For SSB and CORESET multiplexing mode 1, the SIB1 repetition transmission period is 20ms. For SSB and CORESET multiplexing modes 2 / 3, the SIB1 transmission repetition period is the same as the SSB period.

[0080] The transmission of other system information (such as SIB19) is described below: After receiving SIB1, the UE will receive other SIB messages according to the SI scheduling information (SI-SchedulingInfo) indicated by SIB1. In particular, for satellite communication, the UE needs to receive SIB19 messages to obtain the satellite auxiliary information required for NTN access, such as ephemeris information (ephemerisInfo), cell-specific Koffset (cellSpecificKoffset), and Common TA information (TA-Info).

[0081] Through the relevant fields in SIB1, the UE can obtain the SIB19 scheduling-related parameters: si-WindowLength (SI window length), si-WindowPosition-r17 (SI window position), and si-Periodicity-r17 (SI period).

[0082] SI window containing SIB19 (SI-window) from The time slot #a begins within the wireless frame, where a = x mod N and x = (O si-WindowPosition -1)×w

[0083] w represents the SI window length (si-WindowLength); O si-WindowPosition T is the SI window position; T is the SI period; N is the number of time slots within the radio frame.

[0084] Starting from the SI window, the UE will continuously receive the PDCCH scrambled by SI-RNTI until the SI window ends or the SI message has been received. If the SI message is not received by the end of the SI window, it will be received again during the next SI window opportunity within the current modification period.

[0085] Note that the PDCCH listening timing is determined by the SearchSpace indicated by searchSpaceOtherSystemInformation. The monitoringSlotPeriodicityAndOffset field in the SearchSpace determines the PDCCH listening offset. s (Unit: time slot) and PDCCH listening cycle k s (Unit: time slot).

[0086] The UE determines that the PDCCH eavesdropping opportunity exists in the position numbered n. f The intra-frame number is In the time slot,

[0087] UE from time slot The initial continuous T s Listen to the PDCCH candidate set within the time slot, and do not listen to the remaining k PDCCH candidates. s -T s The UE monitors PDCCH candidates for search space sets for T. s consecutive slots, starting from slot and does not monitor PDCCH candidates for search space set s for the nextk s -T s consecutive slots.), where, k is the number of time slots within a wireless frame. s For the PDCCH listening cycle, T s The duration of the search space.

[0088] To ensure that all users at every point of interest have access to the satellite network, the satellite needs to periodically traverse all points of interest and transmit a synchronization signal block (SS / PBCH block, SSB), System Information Block 1 (SIB1), and System Information Block 19 (SIB19). However, typically, most of the traversed points of interest are unoccupied. Therefore, the probability of users intercepting the SSB, SIB1, and SIB19 transmitted by the satellite is very low. In other words, for normal satellite communication, the SSB, SIB1, and SIB19 transmitted by the satellite to ensure coverage performance are all network overhead.

[0089] The following section will take the repeated transmission of SSB (as shown in Figure 7) as an example to introduce the problem of system information (SI) transmission in the prior art.

[0090] As shown in Figure 7, the first SSB index #1 (the leftmost red ellipse) covers spot beam #1 (i.e., the active beam of the satellite points to spot beam #1), the second SSB index #1 (the leftmost blue ellipse) covers spot beam #2, the third SSB index #1 covers spot beam #3, and so on.

[0091] According to existing technology, the transmission period for CORESET0 and SIB1 is 20ms. This means that the SSB index #1 transmitted by the satellite to cover spot beam #1 is associated with a set of CORESET 0 and SIB1 with a repetition period of 20ms (shown by the orange rectangle in Figure 7). However, the satellite typically does not cover spot beam #1 in all CORESET 0 and SIB1 sets. Possible reasons include:

[0092] (1) Considering the purpose of saving system resource overhead, the satellite should not and is not capable of covering spot beam #1 in all CORESET 0 and SIB1 sets. To save system resources, the satellite may cover spot beam #1 on some resources in the aforementioned CORESET 0 and SIB1 sets, and spot beam #2 on other resources, as shown in the red and blue ellipses in Figure 7;

[0093] (2) If spot beam #1 and spot beam #2 belong to the same cell, according to the existing protocol, the system message is either cell-level (i.e., all beams within a cell share the same system message) or region-level (i.e., all cells within a region share the same system message). Therefore, the two SSB indexes #1 associated with spot beam #1 and spot beam #2 are both associated with the same CORESET 0 and SIB1 set with a repetition period of 20ms (shown by the orange rectangle in Figure 7). Therefore, in order to balance the coverage of spot beam #1 and spot beam #2, the satellite needs to cover spot beam #1 on some resources in the aforementioned CORESET 0 and SIB1 sets, and spot beam #2 on other resources;

[0094] However, according to the existing protocol, the UE understands that SSB index#1 is associated with a set of CORESET 0 and SIB1 with a repetition period of 20ms, and will attempt to listen for CORESET 0 and SIB1 on any resources within that set. However, since the satellite will not cover the same dot bit in all resources within the aforementioned CORESET 0 and SIB1 sets, a UE on a certain dot bit will waste a significant amount of power trying to listen for downlink signals that do not actually exist (as the satellite covers other dot bits at that moment), which is detrimental to terminal energy saving.

[0095] Similar issues exist with SIB19 transmission. The scheduling-related parameters of SIB19, si-WindowLength, si-WindowPosition, and si-Periodicity, are indicated via SIB1. Additionally, the search space for the UE to listen for Other System Information is also indicated via SIB1.

[0096] As mentioned earlier, if spot beam #1 and spot beam #2 belong to the same cell, then the two SSB indexes #1 associated with spot beam #1 and spot beam #2 will both be associated with the CORESET 0 and SIB1 sets (shown by the orange rectangle in Figure 7) with a repetition period of 20ms. Since the content indicated in the SIB1 associated with spot beam #1 and spot beam #2 is the same, spot beam #1 and spot beam #2 will also be associated with the same SI window set and search space set containing SIB19 (referred to as the SIB19 time domain set; the green rectangle in Figure 7 indicates the intersection of the SI window set and the search space set, i.e., the UE will attempt to listen for the PDCCH of SIB19 and its scheduled PDSCH within the green rectangle). Similar to SIB1, the UE will attempt to listen for DL ​​signals that do not actually exist on any resources within this SIB19 time domain set (the satellite covers other spot positions at this time), which is detrimental to terminal energy saving.

[0097] Other downlink transmissions, such as receiving PDCCH, receiving PDSCH, and receiving downlink reference signals, are similar to the case of receiving system messages. That is, terminals at different beacons are configured to listen for the same set of times (denoted as the whole set A), but the base station uses different subsets of that set (denoted as subset B). k (where k is the sequence number associated with the dot wave position) serves different dot wave positions; however, the terminal does not understand the subset B of the listening opportunity set associated with its own dot wave position. k Therefore, the terminal still performs downlink transmission in the entire set A, which leads to frequent attempts to listen for DL ​​channels or signals that do not actually exist (the satellite covers other point positions at this time), thus which is not conducive to the terminal's energy saving.

[0098] The following explanation uses random access as an example to illustrate the problems of uplink transmission in the existing technology. From the terminal's perspective, the above uplink transmission includes: sending random access information, sending PUCCH, sending PUSCH, and sending uplink reference signals.

[0099] The following section will first introduce the transmission issues of the existing Physical Random Access Channel (PRACH).

[0100] According to existing technology, the same SSB index is associated with the same PRACH occasion resource set. For example, the SSB index #1 corresponding to spot beam #1 and spot beam #2 are both associated with the same PRACH occasion resource set. However, due to satellite capability limitations (similar to analog beams), satellites can only conduct uplink services on no more than 16 active beams at the same time. This means that satellites cannot simultaneously cover all spot beams (such as spot beam #1 and spot beam #2) on each PRACH occasion resource in the same PRACH occasion resource set associated with the aforementioned SSB index #1. Instead, they can only cover different spot beams on different PRACH occasion resources in a time-division manner.

[0101] If the UE is unaware of when the satellite will actually cover which PRACH occasion resource, then according to current technology, the UE may send PRACH on the PRACH occasion resource corresponding to when the satellite covers other spot beams, which may lead to the following problems:

[0102] 1) It increases the probability of transmission failure, and may even cause the UE to give up on transmitting information. If the UE's selected wavelength is not illuminated or is not a valid communication channel, the transmitted information may not be correctly received by the satellite; if the UE fails to complete the transmission process after multiple transmissions, the UE will understand that the information transmission has failed, and at this time, the UE may give up on transmitting.

[0103] 2) Wasting UE power. Compared to downlink signal reception, uplink signal transmission will generate more terminal power consumption. While the satellite is illuminating other wavelengths, the UE is still trying to transmit information, which will waste a lot of power trying to transmit information that will not actually be received by the satellite. This is not conducive to the UE's energy saving and will seriously affect the phone's battery life.

[0104] Other uplink transmissions, such as sending PUCCH, PUSCH, and uplink reference signals, are similar to the case of sending random access information. That is, terminals at different bezel positions are configured to send at the same set of times (denoted as the whole set A), but the base station transmits through different subsets of that set (denoted as subset B). k (where k is the sequence number associated with the dot wave position) serves different dot wave positions; however, the terminal does not understand the subset B of the transmission timing set associated with its own dot wave position. k Therefore, the terminal still performs uplink transmission in the entire set A, resulting in the frequent attempts to send UL channels or signals that are not actually received by the satellite (the satellite covers other spot positions at this time), which is detrimental to the terminal's energy saving.

[0105] Note that in the example of sending random access information, the above-mentioned sending timing is sometimes referred to as the PRACH occasion.

[0106] To address at least one of the above problems, this disclosure provides an information transmission method that can reduce or avoid the occurrence of the above situations in NTN beam-hopping scenarios, thereby achieving at least one of the following beneficial effects: reducing terminal power consumption, reducing network overhead, and increasing the success rate of terminal random access.

[0107] In this embodiment of the disclosure, the information transmission includes at least one of the following: receiving system information, receiving PDCCH, receiving PDSCH, receiving downlink reference signals, sending random access information, sending a Physical Uplink Control Channel (PUCCH), sending a Physical Uplink Shared Channel (PUSCH), and sending uplink reference signals. Alternatively, in some embodiments, the information transmission may be at least one of receiving system information, receiving PDCCH, receiving PDSCH, receiving downlink reference signals, sending random access information, sending a Physical Uplink Control Channel, sending a Physical Uplink Shared Channel, and sending uplink reference signals.

[0108] Figure 8 is a flowchart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in Figure 8, the information transmission method applied to a terminal device 120 according to an embodiment of the present disclosure may include at least the following operations.

[0109] In operation S801, at least one first timing is determined based on a first system message, or at least one first timing is determined based on a first system message and a second system message, wherein the first system message is beam-related; or at least one first timing is determined based on a third system message, a time-domain related parameter of the third system message, or a time-domain related parameter of the synchronization signal block SSB.

[0110] In operation S802, information transmission is performed at at least one first opportunity.

[0111] As described above, this disclosure aims to address the problem of wasted energy and increased probability of cell access failure caused by the UE's uncertain transmission timing. Therefore, this disclosure proposes a method to solve the above-mentioned problem by having the network device send at least one of the following to the UE: a first system message, a second system message, a third system message, a time-domain related parameter of the third system message, and a time-domain related parameter of the SSB (SS / PBCH block). This method allows the UE to determine the transmission timing. Specific details will be provided in the following embodiments one through three.

[0112] The first opportunity can be understood as the aforementioned transmission opportunity, and at least one first opportunity can be understood as a set of first opportunities. The English word for opportunity is "occasion," and the English word for a set of opportunities is "occasion set," sometimes also referred to as "occasions." For example, a set of listening opportunities might be called monitoring occasions. In some embodiments, a first opportunity can be called a monitoring occasion (or sensing occasion), or a reception occasion, or a measurement occasion, or a transmitting occasion, or collectively referred to as a transmission occasion.

[0113] Furthermore, if the information transmission includes at least one of the following: receiving system information, receiving PDCCH, receiving PDSCH, and receiving downlink reference signals, then the aforementioned first timing can be a receiving timing, a listening timing, or a measurement timing.

[0114] If the information transmission includes at least one of the following: sending random access information, sending PUCCH, sending PUSCH, and sending uplink reference signals, then the aforementioned first timing can be the transmission timing.

[0115] Figure 9 is a flowchart further illustrating an information transmission method according to an embodiment of the present disclosure. As shown in Figure 9, the information transmission method applied to network device 110 according to an embodiment of the present disclosure may include at least the following operations.

[0116] In operation S901, at least one of the following is sent to the terminal device: a first system message, a second system message, a third system message, a time-domain related parameter of the third system message, and a time-domain related parameter of the SSB, wherein the first system message is beam-related.

[0117] In operation S902, information transmission is performed at at least one first timing point, wherein at least one first timing point is determined based on one or more of the first system message, the second system message, the third system message, the time-domain related parameters of the third system message, and the time-domain related parameters of the SSB.

[0118] As described above, this operation corresponds to operations S801 and S802 and is a counter-operation. Specifically, please refer to the following embodiments one to three for a detailed description.

[0119] Example 1:

[0120] At least one first timing is determined based on a first system message, wherein the first system message is beam-related.

[0121] The executing entities may include at least: network device 110 and terminal device 120, and their information transmission methods may include at least the following operations.

[0122] In operation S11, network device 110 sends a first system message to terminal device 120, wherein the first system message is beam-related.

[0123] In operation S12, terminal device 120 determines at least one first timing based on a first system message, wherein the first system message is beam-related.

[0124] In one example embodiment, the first system message includes at least a PRACH Configuration Index. The PRACH Configuration Index is an index to the Random Access Configurations table, which can be seen in Figure 10.

[0125] Figure 10 is a schematic diagram illustrating the random access configuration table in related technologies. The UE, based on the received first system message, queries the Random Access Configurations to obtain parameters x and y, and then uses formula n... SFN mod x = y, determines the PRACH time-domain resource, that is, only when n SFN The UE will only attempt random access in a specific time slot within the corresponding radio frame when the condition mod x = y is met. In other words, the UE will attempt random access in the time slot of the corresponding radio frame when the frame number is n. SFN Random access is attempted in a specific time slot of a radio frame, where the radio frame number is n. SFN Satisfying n SFN The condition mod x = y.

[0126] Here, x defines the temporal period of the PRACH resource in radio frames. y is the offset of the PRACH resource in radio frames within period x. For example, if the value of y is 0, then the PRACH resource exists in the first radio frame of each x-frame period.

[0127] The UE then determines the PRACH in the specified location based on parameters such as the subframe number, the number of PRACH slots within a subframe, the number of time-domain PRACH occasions within a PRACH slot, and the starting symbol, obtained from the PRACH Configuration Index (see Figure 10). SFN In which time slots does it appear, how many times does it appear, and which symbols does it occupy within the radio frame?

[0128] As described above, a different value is forcibly assigned to the first offset y through the first system message. Substituting the forcibly assigned y and the first period x into n... SFN mod x = y, we get different n SFN That is, determining at least one opportunity to send random access information (the first opportunity).

[0129] Network device configuration involves beam-related first system messages, meaning different beam positions are associated with different first system messages. For example, when the first system message includes at least the PRACH Configuration Index field, different beam positions are associated with different PRACH Configuration Indexes.

[0130] In some embodiments, the different PRACH Configuration Indexes correspond to different parameters y and the same parameter x. Therefore, based on formula n SFN mod x = y, n is the radio frame number n associated with different point positions for transmitting PRACH. SFN The difference lies in the fact that different wave positions correspond to different sets of first opportunities.

[0131] To address the problem in existing technology, terminals at different wavelengths are configured with the same set of transmission opportunities (denoted as the total set A), but the base station transmits through different subsets of that set (denoted as subset B). k (where k is the sequence number associated with the dot wave position) serves different dot wave positions; however, the terminal does not understand the subset B of the transmission timing set associated with its own dot wave position. k Therefore, the terminal still performs uplink transmission in the entire set A, resulting in the frequent attempts to send UL channels or signals that are not actually received by the satellite (the satellite covers other spot positions at this time), which is detrimental to the terminal's energy saving.

[0132] In this solution, the base station configures different time-domain resource sets (i.e., the first timing set) for different terminals to transmit PRACH resources, and the base station and the terminal have a consistent understanding of the above-mentioned time-domain resource sets (i.e., the first timing set), thus effectively solving the above-mentioned problems in the prior art.

[0133] The network can configure or associate different time-domain parameters for different point beams through beam-related first system message configuration, so that different point beam positions correspond to different first timing sets. As a terminal, it can determine at least one first timing associated with its own beam based on the beam-related first system message configuration.

[0134] As one example, the first system message maps different spot beams to different PRACH Configuration Index fields, thereby enabling different time-domain parameters to be configured or associated for different spot beams.

[0135] As described above, in one embodiment, by making the first offset y in the Random access configurations table associated with different PRACH Configuration Indexes different, different time-domain parameters are configured or associated with different spot beams. This ensures that even when other parameters are the same, the PRACH occasions corresponding to different spot beam positions are located at different n. SFN middle.

[0136] In other embodiments, the network can also configure different spot beams or associate different time-domain parameters by making the time-domain parameters in the Random access configurations table associated with different PRACH Configuration Indexes different, except for the first offset y. These time-domain parameters include, but are not limited to, at least one of the following: first period x, subframe number, number of PRACH slots within a subframe, number of time-domain PRACH occasions within a PRACH slot, and starting symbol. Further details will not be provided here.

[0137] In some embodiments, new configuration items may be added to the existing Random access configurations table.

[0138] In another example embodiment, for system message reception or PDCCH reception, the first system message may be searchspace information of other system information.

[0139] The `searchSpaceOtherSystemInformation` specifies the search space in which the UE listens for the PDCCH. This PDCCH is used to schedule the PDSCH carrying other SIBs. In 5G NR, SIBs are divided into several types, with "other SIBs" referring to system information blocks other than MIBs and SIB1.

[0140] SearchSpace is a part of PDCCH, and the UE needs to listen for Downlink Control Information (DCI) specific to itself within this space. Each SearchSpace is defined by a set of PDCCH monitoring periods and offsets.

[0141] The `monitoringSlotPeriodicityAndOffset` field in the `SearchSpace` defines the periodicity and offset by which the UE listens to the PDCCH. Specifically:

[0142] o S (Listening Offset): This indicates how many time slots the UE needs to skip before starting to listen to the PDCCH, calculated from a specific reference point (such as the start of a radio frame). This offset is in units of time slots.

[0143] k S (Listening Period): This indicates how many time slots the UE needs to listen to the PDCCH again after the starting point with a determined offset. This period is also measured in time slots.

[0144] The UE determines that the PDCCH eavesdropping opportunity exists in the position numbered n. f The intra-frame number is In the time slot,

[0145] In this embodiment, the above-mentioned k s This can be understood as the first cycle, the above o s This can be understood as the first offset, and by adjusting the first offset o... s Forced assignment ensures that, even with all other parameters being equal, different point wave positions correspond to different PDCCH monitoring occasions located at different n.SFN In short, at least one opportunity to eavesdrop (the first opportunity) must be identified.

[0146] As can be seen, similar to random access information transmission, for system message reception or PDCCH reception, the network can also configure or associate different time-domain parameters for different point beams through beam-related first system message configuration, so that different point beams correspond to different sets of first timing opportunities. As a terminal, it can determine at least one first timing opportunity related to its own beam based on the beam-related first system message configuration. Specifically, determining at least one first timing opportunity based on the first system message includes: determining a first period and a first offset based on the first system message; and determining at least one first timing opportunity based on the first period and the first offset. Similar processing can be applied to PDSCH reception, downlink reference signal reception, PUCCH transmission, PUSCH transmission, and uplink reference signal transmission, which will not be elaborated upon in this case.

[0147] Example 2:

[0148] The executing entities may include at least: network device 110 and terminal device 120, and their information transmission methods may include at least the following operations.

[0149] In operation S21, network device 110 sends a first system message and a second system message to terminal device 120, wherein the first system message is beam-related.

[0150] In operation S22, terminal device 120 determines at least one first timing based on a first system message and a second system message, wherein the first system message is beam-related.

[0151] In one example embodiment, as described above, the second system message includes at least a PRACH Configuration Index field, and the second system message is beam-independent. That is, different beams have the same second system message, such as different point positions being associated with the same PRACH Configuration Index field.

[0152] The first system message must include at least one newly added field O. y (i.e., the first parameter), where O y This represents the wireless frame offset.

[0153] Similar to existing technologies, the terminal operates according to the formula: n SFN mod x = y1 determines the PRACH time-domain resource, that is, only when n SFN Only when the condition mod x = y1 is met will the UE attempt random access in a specific time slot within the corresponding radio frame. However, the difference from existing technologies lies in the fact that y1 = (y + O) y)mod x, where parameters x and y are determined by the second system message, and different point positions are associated with the same parameters x and y. But parameter O y Based on the first system message related to the beam, different parameters O are associated with different beam positions. y .

[0154] Through the above enhancements, it can be ensured that the PRACH occasions corresponding to different dotted wave positions are located in different radio frames, that is, the radio frame number n in which the PRACH occasions corresponding to different dotted wave positions are located. SFN different.

[0155] As described above, substitute the y1 calculated in operation S21 and the second period x into n. SFN mod x = y1, we get different n SFN That is, determining at least one opportunity to send random access information (the first opportunity).

[0156] In another example embodiment, for system message reception or PDCCH reception, the second system message includes at least the monitoringSlotPeriodicityAndOffset field, and the second system message is beam-independent. That is, different beams have the same second system message, such as different point positions being associated with the same monitoringSlotPeriodicityAndOffset field.

[0157] The first system message must include at least one newly added field O. y (i.e., the first parameter), where O y This represents the wireless frame offset.

[0158] Similar to existing technologies, the terminal operates according to the formula:

[0159] Determine the PDCCH listening time, that is, only when The UE will only be active at the corresponding number n when the condition is met. f The intra-frame number is It attempts to listen to the PDCCH during the time slot. However, the difference from existing technologies is that o′ s =(o s +o y )mod k s , where parameter o s and k s The second system message confirms that different point wave positions are associated with the same parameter o. s and k s But parameter O yBased on the first system message related to the beam, different parameters O are associated with different beam positions. y .

[0160] Through the above enhancements, it can be ensured that the PDCCH listening opportunities corresponding to different spot wave positions are located in different time slots, that is, the radio frame number n where the PDCCH listening opportunities corresponding to different spot wave positions are located. f and time slot number At least one of them is different.

[0161] In summary, similar to random access information transmission, for system message reception or PDCCH reception, the network can also configure or associate different time-domain parameters for different point beams through the first and second system messages, so that different point beams correspond to different sets of first timing opportunities, where the first system message is beam-related. As a terminal, it can determine at least one first timing opportunity related to its own beam based on the configuration of the first and second system messages, where the first system message is beam-related. Specifically, the second period and second offset are determined based on the second system message; the first parameter is determined based on the first system message; and at least one first timing opportunity is determined based on the second period, the second offset, and the first parameter. Similar processing can be applied to PDSCH reception, downlink reference signal reception, PUCCH transmission, PUSCH transmission, and uplink reference signal transmission, which will not be elaborated upon here.

[0162] Example 3:

[0163] The executing entities may include at least: network device 110 and terminal device 120, and their information transmission methods may include at least the following operations.

[0164] Terminal device 120 determines at least one first timing based on at least one of the following: a third system message sent by network device 110, time-domain related parameters of the third system message, and time-domain related parameters of the synchronization signal block (SSB). Specifically, this includes:

[0165] In operation S31, terminal device 120 determines the second parameter based on the third system message sent by network device 110; or, terminal device 120 determines the second parameter based on the time-domain related parameters of the third system message or the time-domain related parameters of the SSB.

[0166] In some embodiments, determining the second parameter based on the third system message can be understood as explicitly indicating the second parameter; determining the second parameter based on the time-domain related parameters of the third system message or the time-domain related parameters of the SSB can be understood as implicitly indicating the second parameter, which will be described in detail below:

[0167] A. Based on the message from the third system, determine the second parameter (display indicator):

[0168] In one example embodiment, the terminal receives a third system message to determine a second parameter, wherein the third system message includes at least one of MIB, SIB1, and other SIBs. For example, the second parameter can be indicated or determined by adding fields to MIB, SIB1, or other SIBs, or by reinterpreting existing fields of MIB, SIB1, or other SIBs to indicate or determine the second parameter.

[0169] In some embodiments, the second parameter is also referred to as the first index, which is related to the dotted wave position. The same SSB index can be associated with different first indices. The terminal determines at least one first timing based on the first index and the SSB index. For example, the first timing is the PRACH transmission timing. Assume that the value range of the first index is 0, 1, ..., M-1. In one embodiment, M = 16.

[0170] In some embodiments, the third system message directly indicates the second parameter. For example, an additional field can be added to the MIB or an existing field can be reinterpreted to indicate the second parameter. Alternatively, an additional field can be added to the SIB 1 or Other SIB associated with the current SSB or a reinterpreted field to indicate the second parameter.

[0171] In other embodiments, a third system message indirectly indicates the second parameter. For example, the third system message includes a third parameter, which is either the highest x bits or the lowest y bits of the second parameter, where x and y are integers. The UE combines the third parameter with other information (such as the timing relationship of the SSB or certain bits of the SSB index) to jointly determine the second parameter.

[0172] In both of the above cases, the terminal determines at least one first timing based on the second parameter (first index) and the SSB index.

[0173] B. Determine the second parameter (implicit indication) based on the time-domain related parameters of the third system message or the time-domain related parameters of the SSB:

[0174] In another example embodiment, the time-domain dependent parameters of the third system message or the time-domain dependent parameters of the SSB are related to the SSB retransmission and SSB clustering transmission methods described in Figures 5 and 6.

[0175] For the SSB repetitive transmission mode shown in Figure 5, the time-domain related parameters of the third system message or the time-domain related parameters of the SSB include, but are not limited to: the SSB repetitive transmission period, the SSB half-frame interval, and the SSB radio frame number. Therefore, the second parameter is determined based on at least one of the SSB repetitive transmission period, the SSB half-frame interval, and the SSB radio frame number.

[0176] Specifically, for SSB repetitive transmission, if the UE assumes the SSB repetitive transmission period P... SSB If the second parameter is divisible by 10240ms (ensuring that the radio frame number of the SSB corresponding to a certain point wave position does not change with time), and the interval between adjacent half frames with SSBs (half frames with SS / PBCH blocks occur) from the base station side is P1 (e.g., 20ms), then the second parameter (which can also be denoted as the first index) satisfies the following relationship: Second parameter = ((10ms * SFN) c )mod P SSB ) / P1, where SFN c This refers to the radio frame number associated with the SSB, i.e., the SFN number to which the current SSB resides. P SSB It can also be referred to as the half-frame interval of SSB, or the repetition period of SSB. P1 is a preset parameter.

[0177] For example: P SSB =320ms (10240ms / 320ms=32), P1=20ms, SFN c =4, then the first index = ((10ms*4)mod 320ms) / 20ms = 2.

[0178] For the SSB clustering transmission method shown in Figure 6, the time-domain related parameters of the third system message or the time-domain related parameters of the SSB include, but are not limited to: the period of the first window, the period of the half-frame including the first information, the interval of the half-frames including the first information within the first window, and the frame number of the first radio frame including the first information within the first window. The first window includes at least one piece of first information, which is an SSB, and at least one piece of first information has the same SSB index. Therefore, at least one of the following—the period of the first window, the period of the half-frame including the first information, the interval of the half-frames including the first information within the first window, and the frame number of the first radio frame including the first information within the first window—is used to determine the second parameter.

[0179] The first window includes the clustering of SSBs. In some embodiments, the period of the first window may also be referred to as the clustering transmission period of two adjacent SSBs, or the interval between the clustering of two adjacent SSBs; the period of the half-frame including the first information may also be referred to as the interval between adjacent SSBs, or the interval between the half-frames including the first information within the first window; the first half-frame including the first information within the first window may also be referred to as the first SSB half-frame of the SSB clustering.

[0180] For SSB clustering transmission, if the period P of two adjacent SSB clusters is... revsist Divisible by 10240ms, each SSB cluster includes N (e.g., N=4) SSBs, and the interval between adjacent SSBs is P. SSB (e.g., 20ms), then the first index satisfies the following relationship: the second parameter = ((10ms*SFN) c )mod P revisit ) / (N*P SSB ),in,

[0181] P revsist The period of the first window;

[0182] P SSB The period of a half-frame including the first information, or the interval of a half-frame including the first information within the first window;

[0183] N is the number of pieces of information included in the first window;

[0184] SFN c It is the frame number of the first half-frame radio frame containing the first information within the first window, that is, the SFN number of the first half-frame of the SSB cluster to which the current SSB belongs.

[0185] For example: P revisit =1280ms(10240ms / 1280ms=8), P SSB =20ms, N=4, SFN c =16, then the first index = ((10ms*16)mod 1280ms) / (4*20ms) = (160ms) / (80ms) = 2.

[0186] In operation S32, the terminal device 120 determines the second cycle and the second offset based on the second system message.

[0187] In some embodiments, the second system message is beam-independent. That is, different beams have the same second system message.

[0188] In some embodiments, for random access, the second system message includes at least a Random Access Configuration Index (PRACH), which can be used to determine the second period x and the second offset y. Different point positions are associated with the same second period x and second offset y.

[0189] In other embodiments, for system message reception or PDCCH reception, the second system message includes at least the monitoringSlotPeriodicityAndOffset field, which can be used to determine the second period k. s Second offset o s Different point wave positions are associated with the same second period k. s Second offset o s .

[0190] The same approach can be applied to PDSCH reception, downlink reference signal reception, PUCCH transmission, PUSCH transmission, and uplink reference signal transmission, which will not be elaborated upon in this case.

[0191] In operation S33, the terminal device 120 determines at least one first timing based on the second period, the second offset, and the second parameter.

[0192] In one embodiment, a fourth offset is determined based on a second period, a second offset, and a second parameter;

[0193] Based on the second cycle and the fourth offset, at least one first timing is determined.

[0194] In some embodiments, for random access, the second system message includes at least a Random Access Configuration Index (PRACH), which can be used to determine the second period x and the second offset y. Different point positions are associated with the same second period x and second offset y.

[0195] The terminal determines the second parameter O based on the time-domain related parameters of the third system message or the time-domain related parameters of the SSB. y .

[0196] Based on the second period x, the second offset y, and the second parameter O y Determine the fourth offset y1. That is, y1 = (y + f(O)). y ))mod x. Where, f(O y ) is the second parameter O y A function, for example, f(z) = Az + B, where parameters A and B are integers, and can be agreed upon by a protocol or configured at a higher level. In some simple examples, f(z) = z.

[0197] Based on the second cycle x and the fourth offset y1, at least one first opportunity is determined. That is, the terminal is determined according to the formula: n SFN mod x = y1 determines the PRACH time-domain resource, that is, only when n SFN Only when the condition mod x = y1 is met will the UE attempt random access in a specific time slot of the corresponding radio frame.

[0198] Through the above enhancements, it can be ensured that the PRACH occasions corresponding to different dotted wave positions are located in different radio frames, that is, the radio frame number n in which the PRACH occasions corresponding to different dotted wave positions are located. SFN different.

[0199] In summary, similar to random access information transmission, for system message reception or PDCCH reception, the network can also configure or associate different time-domain parameters for different point beams through the first and second system messages, so that different point beams correspond to different sets of first timing opportunities, where the first system message is beam-related. As a terminal, it can determine at least one first timing opportunity related to its own beam based on the configuration of the first and second system messages, where the first system message is beam-related. Specifically, the second period and second offset are determined based on the second system message; the first parameter is determined based on the first system message; and at least one first timing opportunity is determined based on the second period, the second offset, and the first parameter. Similar processing can be applied to PDSCH reception, downlink reference signal reception, PUCCH transmission, PUSCH transmission, and uplink reference signal transmission, which will not be elaborated upon here.

[0200] In other embodiments, for system message reception or PDCCH reception, the second system message includes at least the monitoringSlotPeriodicityAndOffset field, which can be used to determine the second period k. s Second offset o s Different point wave positions are associated with the same second period k. s Second offset o s .

[0201] The terminal determines the second parameter O based on the time-domain related parameters of the third system message or the time-domain related parameters of the SSB. y .

[0202] According to the second period k s Second offset o s and the second parameter O y Determine the fourth offset y1, i.e., o′. s =(o s +f(O y ))mod ks Among them, f(O) y ) is the second parameter O y A function, for example, f(z) = Az + B, where parameters A and B are integers, and can be agreed upon by a protocol or configured at a higher level. In some simple examples, f(z) = z.

[0203] According to the second period k s And the fourth offset y1, determine at least one first timing. That is, the terminal according to the formula:

[0204] Determine the PDCCH listening time, that is, only when The UE will only be active at the corresponding number n when the condition is met. f The intra-frame number is Attempt to listen to the PDCCH during the time slot.

[0205] Through the above enhancements, it can be ensured that the PDCCH listening opportunities corresponding to different spot wave positions are located in different time slots, that is, the radio frame number n where the PDCCH listening opportunities corresponding to different spot wave positions are located. f and time slot number At least one of them is different.

[0206] The same approach can be applied to PDSCH reception, downlink reference signal reception, PUCCH transmission, PUSCH transmission, and uplink reference signal transmission, which will not be elaborated upon in this disclosure.

[0207] If the information transmission is the sending of random access information, determining at least one first timing based on the aforementioned second period, second offset, and second parameter, further includes at least one of the following:

[0208] Based on the second period, the second offset, and the second parameter, the configured physical random access channel (PRACH) opportunities are determined.

[0209] Based on the second period, the second offset, and the second parameter, valid PRACH opportunities are determined.

[0210] Based on the second period, the second offset, and the second parameter, the PRACH opportunity of the mapping is determined.

[0211] In one example embodiment, the configured Physical Random Access Channel (PRACH) opportunity is determined based on the second period x, the second offset y, and the second parameter.

[0212] The UE determines the temporal resource configuration of the RO by querying the Random access configurations table in TS 38.211 through the PRACH Configuration Index field in the higher-layer Random Access Configuration Generic IE (RACH-ConfigGeneric IE) or the Two-Step Random Access Configuration Generic IE (RACH-ConfigGenericTwoStepRA IE).

[0213] Replace y in the existing Random access configurations table with y1 = (y + f(second parameter)) mod x. f(second parameter) is a function of the second parameter, for example, f(z) = Az + B, where parameters A and B are integers, which can be agreed upon by the protocol or configured at a higher level.

[0214] Network device 110 is configured in conjunction with other parameters to ensure that the PRACH occasions corresponding to different dot wave positions are located in different radio frames.

[0215] This operation can be understood as determining the starting point for when to send random access information. RACH configuration provides a set of predefined PRACH opportunities (i.e., configured ROs), which are candidate times when the UE can send the random access preamble. This step determines the potential timeframe for random access.

[0216] It is evident that for different point beams, the associated second period (x) and second offset (y) parameters are the same, but the associated second parameter differs. The network determines the PRACH opportunity based on the second period, second offset, and second parameter, allowing different point beams to be configured or associated with different time-domain parameters, so that different point positions correspond to different first opportunity sets. As a terminal, it can determine at least one PRACH opportunity associated with its own beam based on the second period, second offset, and second parameter.

[0217] In another example embodiment, a valid PRACH opportunity is determined based on a second period x, a second offset y, and a second parameter.

[0218] Based on existing technologies, the UE determines a set of predefined PRACH opportunities (i.e., configured ROs). Specifically, the UE determines the temporal resource configuration of the RO by querying the Random access configurations table in TS 38.211 through the PRACH Configuration Index field in the higher-layer RACH-ConfigGeneric IE or RACH-ConfigGenericTwoStepRA IE.

[0219] Note that not all configured ROs are valid, so after identifying potential random access opportunities, this operation verifies which of these configured ROs are valid.

[0220] This embodiment enhances the valid PRACH occasion rule. In the prior art, the radio frame number SFN n where the PRACH occasion is located is determined according to the following formula. f of, n f mod x = y

[0221] Here, x and y are fields in the Random access configurations table.

[0222] This embodiment enhances the above formula, and only when the following condition is met will n... f Only the PRACH occasion in the specified context is a valid PRACH occasion. f mod M = f(second parameter) where f(second parameter) is a function of the second parameter. For example, f(z) = Az + B, where parameters A and B are integers. Parameters A and B can be agreed upon by the protocol or configured by a higher layer. M is an integer. Parameter M is related to the number of point ripples with the same configured RO configuration.

[0223] It is evident that for different spot beams, the associated second period x and second offset y parameters are the same, and therefore the mapped PRACH opportunity set is also the same. However, the second parameters associated with different spot beams are different, causing different spot beams to be associated with different valid PRACH occasions.

[0224] The network determines valid PRACH opportunities based on the second period, the second offset, and the second parameter, allowing different spot beam configurations or associations with different time-domain parameters so that different spot beam positions correspond to different first opportunity sets. As a terminal, it can determine at least one valid PRACH opportunity associated with its own beam based on the second period, the second offset, and the second parameter.

[0225] In another example embodiment, the PRACH opportunity of the mapping is determined based on the second period, the second offset, and the second parameter.

[0226] The UE determines the configured PRACH opportunity (i.e., configured RO) and / or the valid PRACH opportunity (i.e., valid RO) based on existing technology. For different spot beams, the associated second period x and second offset y parameters are the same, therefore the set of valid PRACH opportunities is also the same.

[0227] After identifying a valid random access opportunity (SROS), this operation determines the mapping between the SSB and the valid SROS. This mapping is crucial for the UE because it determines on which exact time-domain resource the random access preamble should be transmitted after a specific SSB is detected. This step specifies the timing of transmission, ensuring that the UE transmits the preamble in the correct time slot to synchronize with the network and achieve successful access.

[0228] This embodiment enhances the mapping relationship between SSB and valid RO. For example, in the NTN scenario, the UE does not expect to be configured with ssb-perRACH-Occasion>1 (i.e., N SS / PBCH blocks will be mapped to 1 valid RO).

[0229] Replace the existing SSB index with i SSB =SSB index + M * second parameter. And according to existing technology, i... SSB Mapped to a valid RO, such as:

[0230] First, follow the increasing order of the preamble index within a PRACH occasion;

[0231] Secondly, the frequency domain resource indexes of the PRACH occasions that are multiplexed in the frequency domain are in ascending order;

[0232] Secondly, the time-domain resource indexes of PRACH occasions that are time-domain multiplexed within a PRACH slot are in ascending order;

[0233] Finally, follow the ascending index order of the PRACH slots.

[0234] As can be seen, since different spot beams are associated with different second parameters, a new mapping relationship between the SSB and the valid RO can be designed to associate it with the second parameter, allowing users of different spot beams to associate different PRACH occasions.

[0235] The network determines the mapped PRACH opportunity based on the second period, the second offset, and the second parameter, allowing different point beams to be configured or associated with different time-domain parameters, so that different point beams correspond to different first opportunity sets. As a terminal, it can determine at least one mapped PRACH opportunity associated with its beam based on the second period, the second offset, and the second parameter. Figure 11 is a schematic diagram illustrating an information transmission device according to an embodiment of this disclosure. As shown in Figure 11, the information transmission device 1100 may include at least the following modules.

[0236] The determining module 1101 is configured to determine at least one first timing based on a received first system message, or to determine at least one first timing based on a first system message and a second system message, wherein the first system message is beam-related; or to determine at least one first timing based on a third system message, a time-domain related parameter of the third system message, or a time-domain related parameter of a synchronization signal block (SSB).

[0237] As shown in Figure 11-1, the determining module 1101 may include:

[0238] The first determining unit 11011 is configured to determine at least one first timing based on a first system message, including: determining a first period and a first offset based on the first system message; and determining at least one first timing based on the first period and the first offset.

[0239] The second determining unit 11012 is configured to determine a second period and a second offset based on a second system message; determine a first parameter based on a first system message; and determine at least one first timing based on the second period, the second offset, and the first parameter.

[0240] The third determining unit 11013 is used to determine the second parameter according to the third system message; or, to determine the second parameter according to the time-domain related parameters of the third system message or the time-domain related parameters of the SSB; to determine the second period and the second offset according to the second system message; and to determine at least one first timing according to the second period, the second offset, and the second parameter.

[0241] Furthermore, the second parameter can be determined based on at least one of the SSB's repetition transmission period, the SSB's half-frame interval, and the SSB's radio frame number.

[0242] The second parameter = ((10ms*SFN) c )mod P SSB ) / P1;

[0243] Among them, P SSB The repetition period of the SSB or the half-frame interval of the SSB; SFN c P1 is the frame number of the radio frame associated with the SSB. The second parameter can also be determined based on at least one of the following: the period of the first window, the period of the half-frame including the first information, the interval of the half-frames including the first information within the first window, and the frame number of the first radio frame including the first information within the first window. The first window includes at least one piece of first information, which is an SSB, and at least one piece of first information has the same SSB index.

[0244] The second parameter = ((10ms*SFN) c )mod P revisit ) / (N*P SSB );

[0245] Among them, P revisit The period of the first window; P SSB The period of a half-frame containing the first information, or the interval of a half-frame containing the first information within the first window; N is the number of pieces of first information included within the first window; SFN c The frame number is the first half-frame of the radio frame that includes the first information within the first window.

[0246] The transmission module 1102 is used to transmit information at at least one first time. The information transmission includes at least one of the following: receiving system information, receiving physical downlink control channel (PDCCH), receiving physical downlink shared channel (PDSCH), receiving downlink reference signals, transmitting random access information, transmitting PUCCH, transmitting PUSCH, and transmitting uplink reference signals.

[0247] The first timing is the transmission timing; when information transmission includes at least one of the following: receiving system information, receiving PDCCH, receiving PDSCH, receiving downlink reference signal, the first timing is the receiving timing, or the listening timing, or the measurement timing; when information transmission includes at least one of the following: sending random access information, sending PUCCH, sending PUSCH, sending uplink reference signal, the first timing is the sending timing.

[0248] In addition, if the information transmission is to send random access information, the method further includes: determining the configured physical random access channel (PRACH) opportunity based on the second period, the second offset, and the second parameter; determining the valid PRACH opportunity based on the second period, the second offset, and the second parameter; and determining the mapped PRACH opportunity based on the second period, the second offset, and the second parameter.

[0249] Figure 12 is a further schematic diagram of an information transmission device according to an embodiment of the present disclosure. As shown in Figure 12, the information transmission device 1200 may include at least the following modules.

[0250] The transmitting module 1201 is used to transmit at least one of a first system message, a second system message, a third system message, and a synchronization signal block (SSB) to the terminal, wherein the first system message is beam-related.

[0251] The determination module 1202 is used to determine at least one first timing based on one or more of the first system message, the second system message, the third system message, the time-domain related parameters of the third system message, and the time-domain related parameters of the SSB.

[0252] The transmission module 1203 is used to transmit information at at least one first moment.

[0253] The method for determining the first timing includes at least one of the following:

[0254] The first cycle and the first offset are determined based on the first system message; at least one first timing is determined based on the first cycle and the first offset;

[0255] The second system message determines the second period and the second offset; the first system message determines the first parameter; the second system message, the second offset, and the first parameter determine at least one first timing.

[0256] Determine the second parameter based on the third system message; or, determine the second parameter based on the time-domain related parameters of the third system message or the time-domain related parameters of the SSB; determine the second period and the second offset based on the second system message; determine at least one first timing based on the second period, the second offset, and the second parameter.

[0257] The second parameter can be determined based on at least one of the following: the SSB repetition transmission period, the SSB half-frame interval, and the SSB radio frame number.

[0258] The second parameter = ((10ms*SFN) c )mod P SSB ) / P1; where P SSB The repetition period of the SSB or the half-frame interval of the SSB; SFNc P1 is the radio frame number associated with the SSB; P2 is a preset parameter.

[0259] The second parameter may also be determined based on at least one of the following: the period of the first window, the period of the half-frame including the first information, the interval of the half-frames including the first information within the first window, and the frame number of the first radio frame including the first information within the first window, wherein the first window includes at least one piece of first information, the first information is an SSB, and at least one piece of first information has the same SSB index.

[0260] The second parameter = ((10ms*SFN) c )mod P revisit ) / (N*P SSB ); where P revisit The period of the first window; P SSB The period of a half-frame containing the first information, or the interval of a half-frame containing the first information within the first window; N is the number of pieces of first information included within the first window; SFN c The frame number is the first half-frame of the radio frame that includes the first information within the first window.

[0261] The information transmission performed includes at least one of the following: sending system information, sending physical downlink control channel (PDCCH), sending physical downlink shared channel (PDSCH), sending downlink reference signals, receiving random access information, receiving PUCCH, receiving PUSCH, and receiving uplink reference signals.

[0262] If the information transmission is to receive random access information, determining at least one first opportunity based on the second period, the second offset, and the second parameter, further includes at least one of the following: determining the configured physical random access channel (PRACH) opportunity based on the second period, the second offset, and the second parameter; determining a valid PRACH opportunity based on the second period, the second offset, and the second parameter; and determining a mapped PRACH opportunity based on the second period, the second offset, and the second parameter.

[0263] Figure 13 is a hardware block diagram illustrating an electronic device according to an embodiment of the present disclosure. The electronic device according to an embodiment of the present disclosure includes at least a processor and a memory for storing computer-readable instructions. When the computer-readable instructions are loaded and executed by the processor, the processor performs the information transfer method as described above.

[0264] The electronic device 1300 shown in Figure 13 specifically includes a central processing unit (CPU) 1301, a graphics processing unit (GPU) 1302, and a memory 1303. These units are interconnected via a bus 1304. The CPU 1301 and / or GPU 1302 can function as the aforementioned processor, and the memory 1303 can function as the aforementioned memory for storing computer-readable instructions. Furthermore, the electronic device 1300 may also include a communication unit 1305, a storage unit 1306, an output unit 1307, an input unit 1308, and an external device 1309, all of which are also connected to the bus 1304.

[0265] Figure 14 is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. As shown in Figure 14, a computer program product 1400 according to an embodiment of the present disclosure stores a computer program 1401 thereon. When the computer program 1401 is executed by a processor, it performs the information transmission method described with reference to the above figures. The computer program product includes, but is not limited to, volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, optical disk, magnetic disk, etc.

[0266] The above description, with reference to the accompanying drawings, outlines an information transmission method, apparatus, electronic device, and computer program product according to embodiments of the present disclosure. The information transmission method according to embodiments of the present disclosure reduces energy waste caused by terminal device transmission failures and repeated transmissions by allowing the terminal device to determine the timing of information transmission.

[0267] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0268] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0269] The block diagrams of devices, apparatuses, devices, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0270] Additionally, as used herein, the “or” used in a list of items beginning with “at least one” indicates a separate list, such that a list of, for example, “at least one of A, B, or C” means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word “exemplary” does not imply that the described example is preferred or better than other examples.

[0271] It should also be noted that in the systems and methods of this disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions to this disclosure.

[0272] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufactures, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufactures, events, means, methods, or actions within their scope.

[0273] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0274] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A method for transmitting information, applied to a terminal device, comprising: determining at least one first occasion according to a first system message, or determining at least one first occasion according to a first system message and a second system message, wherein the first system message is related to a beam; or determining at least one first occasion according to at least one of a third system message, a time domain related parameter of the third system message, a time domain related parameter of a synchronization signal block (SSB); and performing the information transmission at the at least one first occasion. The determining at least one first occasion according to a first system message comprises: determining a first period and a first offset according to the first system message; and determining the at least one first occasion according to the first period and the first offset. The determining at least one first occasion according to a first system message and a second system message comprises: determining a second period and a second offset according to the second system message; determining a first parameter according to the first system message; and determining the at least one first occasion according to the second period, the second offset, and the first parameter. The determining at least one first occasion according to at least one of a third system message, a time domain related parameter of the third system message, a time domain related parameter of a SSB comprises: determining a second parameter according to the third system message, or determining the second parameter according to the time domain related parameter of the third system message or the time domain related parameter of the SSB; determining a second period and a second offset according to a second system message; and determining the at least one first occasion according to the second period, the second offset, and the second parameter.

2. The method of claim 1, wherein, The determining a second parameter according to a time domain related parameter of a SSB or a time domain related parameter of a SSB comprises: determining the second parameter according to at least one of a repetition transmission period of the SSB, a half frame interval of the SSB, a radio frame number of the SSB. P1 is a preset parameter. The determining a second parameter according to a time domain related parameter of a SSB or a time domain related parameter of a SSB further comprises: determining the second parameter according to at least one of a period of a first window, a period of a half frame including first information, an interval of a half frame including first information within the first window, a frame number of a radio frame of a first half frame including first information within the first window, wherein the first window includes at least one first information, the first information is a SSB, and the at least one first information has a same SSB index.

3. The method of claim 1, wherein, N is a number of the first information included in the first window. The information transmission comprises at least one of: receiving a system information, receiving a physical downlink control channel (PDCCH), receiving a physical downlink shared channel (PDSCH), receiving a downlink reference signal, transmitting random access information, transmitting a PUCCH, transmitting a PUSCH, and transmitting an uplink reference signal. The first occasion comprises at least one of: the first occasion is a transmission occasion; and the first occasion is a receiving occasion. ​ 4. The method of claim 1, wherein, ​ ​ ​ ​ 5. The method of claim 4, wherein, ​ ​ 6. The method of claim 5, wherein, satisfies the following relationship: the second parameter = ((10 ms * SFN c ) mod P SSB ) / P1; wherein P SSB is a repetition transmission period of the SSB or a half-frame interval of the SSB; SFN C a radio frame number associated with the SSB; ​ 7. The method of claim 4, wherein, ​ ​ 8. The method of claim 7, wherein, satisfies the following relationship: the second parameter = ((10 ms * SFN c ) mod P revisit ) / (N * P SSB ); wherein P revisit is the period of the first window; P SSB a period of the half-frames comprising the first information, or an interval of the half-frames comprising the first information within the first window; ​ SFN C is the frame number of the radio frame in which the first half frame containing the first information is included in the first window.

9. The method of any one of claims 1 to 8, wherein, ​ ​ 10. The method of claim 9, wherein, ​ ​ If the information transmission comprises at least one of: receiving system information, receiving PDCCH, receiving PDSCH, receiving downlink reference signal, the first occasion is a receiving occasion, or a listening occasion, or a measuring occasion. If the information transmission comprises at least one of: sending random access information, sending PUCCH, sending PUSCH, sending uplink reference signal, the first occasion is a sending occasion.

11. The method of claim 4, wherein, The method further comprises: If the information transmission is sending random access information, the determining the at least one first occasion according to the second period, the second offset, and the second parameter further comprises at least one of: determining a configured physical random access channel (PRACH) occasion based on the second period, the second offset, and the second parameter; determining a valid PRACH occasion based on the second period, the second offset, and the second parameter; determining a mapped PRACH occasion based on the second period, the second offset, and the second parameter.

12. An information transmission method applied to a network device, comprising: sending, to a terminal device, at least one of: a first system message, a second system message, a third system message, and a synchronization signal block (SSB), wherein the first system message is related to a beam; and performing the information transmission at at least one first occasion, wherein the at least one first occasion is determined according to one or more of: a time domain related parameter of the first system message, a time domain related parameter of the second system message, a time domain related parameter of the third system message, and a time domain related parameter of the SSB.

13. The method of claim 12, wherein, The determining the at least one first occasion according to one or more of: the first system message, the second system message, the third system message, the time domain related parameter of the third system message, and the time domain related parameter of the SSB comprises: determining a first period and a first offset according to the first system message; determining the at least one first occasion according to the first period and the first offset.

14. The method of claim 12, wherein, The determining the at least one first occasion according to one or more of: the first system message, the second system message, the third system message, the time domain related parameter of the third system message, and the time domain related parameter of the SSB further comprises: determining a second period and a second offset according to the second system message; determining a first parameter according to the first system message; determining the at least one first occasion according to the second period, the second offset, and the first parameter.

15. The method of claim 12, wherein, The determining the at least one first occasion according to one or more of: the first system message, the second system message, the third system message, the time domain related parameter of the third system message, and the time domain related parameter of the SSB further comprises: determining a second parameter according to the third system message, or determining the second parameter according to a time domain related parameter of the third system message or a time domain related parameter of the SSB; determining a second period and a second offset according to the second system message; determining the at least one first occasion according to the second period, the second offset, and the second parameter.

16. The method of claim 15, wherein, The second parameter is determined according to at least one of a repetition transmission period of the SSB, a half-frame interval of the SSB, or a radio frame frame number of the SSB.

17. The method of claim 16, wherein, satisfies the following relationship: the second parameter = ((10 ms * SFN c ) mod P SSB ) / P1; wherein P SSB is a repetition transmission period of the SSB or a half-frame interval of the SSB; SFN C a radio frame number associated with the SSB; P1 is a preset parameter.

18. The method of claim 15, wherein, The second parameter is determined according to at least one of a period of the first window, a period of a half-frame including the first information, an interval of a half-frame including the first information within the first window, or a frame number of a radio frame of a first half-frame including the first information within the first window, wherein the first window includes at least one first information, the first information is an SSB, and the at least one first information has a same SSB index.

19. The method of claim 18, wherein, satisfies the following relationship: the second parameter = ((10 ms * SFN c ) mod P revisit ) / (N * P SSB ); wherein P revisit is the period of the first window; P SSB a period of the half-frames comprising the first information, or an interval of the half-frames comprising the first information within the first window; N is a number of the first information included in the first window. SFN C is the frame number of the radio frame in which the first half frame containing the first information is included in the first window.

20. The method of any one of claims 12 to 19, wherein, The information transmission includes at least one of: transmitting system information, transmitting a physical downlink control channel (PDCCH), transmitting a physical downlink shared channel (PDSCH), transmitting a downlink reference signal, receiving random access information, receiving a PUCCH, receiving a PUSCH, or receiving an uplink reference signal.

21. The method of claim 15, wherein, The method further includes: If the information transmission is receiving random access information, the determining the at least one first occasion according to the second period, the second offset, and the second parameter further includes at least one of: determining a configured physical random access channel (PRACH) opportunity based on the second period, the second offset, and the second parameter; determining a valid PRACH opportunity based on the second period, the second offset, and the second parameter; or determining a mapped PRACH opportunity based on the second period, the second offset, and the second parameter.

22. An information transmission apparatus, comprising: a determining module configured to determine at least one first occasion according to a received first system message, or to determine at least one first occasion according to a first system message and a second system message, wherein the first system message is related to a beam, or to determine at least one first occasion according to at least one of a third system message, a time-domain related parameter of the third system message, or a time-domain related parameter of a synchronization signal block (SSB); a transmission module configured to perform the information transmission at the at least one first occasion.

23. An information transmission apparatus, comprising: a sending module configured to send at least one of a first system message, a second system message, a third system message, a time-domain related parameter of the third system message, or a time-domain related parameter of a synchronization signal block (SSB) to a terminal, wherein the first system message is related to a beam; a determining module configured to determine at least one first occasion according to one or more of the first system message, the second system message, the third system message, the time-domain related parameter of the third system message, or the time-domain related parameter of the SSB; a transmission module configured to perform the information transmission at the at least one first occasion.

24. An electronic device, comprising: a memory configured to store computer readable instructions; and a processor configured to execute the computer readable instructions to cause the electronic device to perform an information transmission method according to any one of claims 1 to 21. The computer program, when executed by a processor, implements the information transmission method according to any one of claims 1 to 21.

25. A computer program product comprising a computer program, wherein, ​

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