Processing method, communication device and storage medium

Abstract

The invention discloses a processing method, communication equipment and a storage medium, and the processing method comprises the steps: responding to a first condition, and determining a physical random access channel opportunity; through the technical scheme of the invention, a physical random access channel opportunity determination mechanism supporting transmission of a plurality of physical random access channels of different transmitting beams is defined, and then a physical random access channel transmission mechanism is perfected.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to a processing method, communication device, and storage medium. Background Technology

[0002] The coverage performance of cellular communication networks not only directly affects service quality but also significantly impacts network construction and maintenance costs. With the continuous growth of service demands, uplink coverage has gradually become a major bottleneck restricting network performance improvement. Especially in the uplink, PRACH (Physical Random Access Channel) coverage enhancement is crucial, as it directly determines whether terminal devices can successfully initiate connections and access the network.

[0003] In the process of conceiving and implementing this application, the inventors discovered at least the following problems: The existing PRACH transmission mechanism is imperfect. For example, the current protocol does not support transmission through multiple physical random access channels based on different transmit beams. Due to this limitation, terminal devices need to repeatedly perform beam scanning during random access to determine the optimal uplink transmit beam, resulting in a decrease in beam scanning efficiency. Therefore, it is necessary to improve the PRACH transmission mechanism.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the Invention

[0005] The main objective of this application is to provide a processing method, communication device, and storage medium, aiming to propose a technical solution for determining the timing of physical random access channels, so as to support the transmission of multiple physical random access channels based on different transmission beams, thereby improving the physical random access channel transmission mechanism.

[0006] This application provides a processing method applicable to terminal devices (such as mobile phones), including the following steps: S1: In response to the satisfaction of the first condition, determine the timing of the physical random access channel.

[0007] Optionally, the processing method further includes at least one of the following: The physical random access channel timing is the effective physical random access channel timing used for physical random access channel transmission of different transmit beams; The timing of a physical random access channel is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings in a time instance of frequency division multiplexing, number of preamble repetitions for the same beam, first offset, and second offset.

[0008] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0009] Optionally, the processing method further includes at least one of the following: The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one of the same synchronization signal block indices; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices; Different sets of physical random access channel timings with different numbers of transmit beams lie within a time period; The number of different transmit beams in a set of physical random access channel opportunities lies within a time period; The number of times the preamble of the same beam is repeated in a set of physical random access channel opportunities. The number of valid physical random access channel opportunities within a time period.

[0010] Optionally, the processing method further includes at least one of the following: A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices. A physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are repeated consecutively in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0011] Optionally, the processing method further includes at least one of the following: For paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities; For unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing. For unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block in the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell is a valid physical random access channel timing within that physical random access channel time slot. Physical random access channel timing does not include physical random access channel timing in subband full-duplex symbols; Physical random access channel timing does not include physical random access channel timing used for physical random access channel time-domain adaptation; X is less than or equal to the number of times the preamble is repeated in the same beam; X is a positive integer.

[0012] This application also provides a processing method applicable to network devices (such as base stations), including the following steps: S2: Receive the random access preamble on the physical random access channel timing, which is determined by the terminal device in response to the satisfaction of the first condition.

[0013] Optionally, the processing method further includes at least one of the following: The physical random access channel timing is the physical random access channel timing used for transmission of different transmit beams. The timing of a physical random access channel is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings in a time instance of frequency division multiplexing, number of preamble repetitions for the same beam, first offset, and second offset.

[0014] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0015] Optionally, the processing method further includes at least one of the following: The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one of the same synchronization signal block indices; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices; Different sets of physical random access channel timings with different numbers of transmit beams lie within a time period; The number of different transmit beams in a set of physical random access channel opportunities lies within a time period; The number of times the preamble of the same beam is repeated in a set of physical random access channel opportunities. The number of valid physical random access channel opportunities within a time period.

[0016] Optionally, the processing method further includes at least one of the following: A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices. A physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are repeated consecutively in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0017] Optionally, the processing method further includes at least one of the following: For paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities; For unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing. For unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block in the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell is a valid physical random access channel timing within that physical random access channel time slot. Physical random access channel timing does not include physical random access channel timing in subband full-duplex symbols; Physical random access channel timing does not include physical random access channel timing used for physical random access channel time-domain adaptation; X is less than or equal to the number of times the preamble is repeated in the same beam; X is a positive integer.

[0018] This application also provides a processing apparatus, the processing apparatus comprising: The determination module is used to determine the timing of the physical random access channel in response to the satisfaction of the first condition.

[0019] This application also provides a processing apparatus, the processing apparatus comprising: The receiving module is used to receive the random access preamble on the physical random access channel timing, which is determined by the terminal device in response to the satisfaction of a first condition.

[0020] This application also provides a communication device, including: a memory, a processor, and a transmission program stored in the memory and executable on the processor, wherein the transmission program, when executed by the processor, implements the steps of any of the processing methods described above.

[0021] The communication equipment mentioned in this application may be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific meaning needs to be clarified in the context.

[0022] This application also provides a computer-readable storage medium storing a transmission program, which, when executed by a processor, implements the steps of any of the processing methods described above.

[0023] In the technical solution of this application, the terminal device determines the timing of the physical random access channel in response to the fulfillment of the first condition, thus clarifying the mechanism for determining the timing of the physical random access channel that supports the transmission of multiple physical random access channels with different transmit beams, thereby improving the physical random access channel transmission mechanism. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0025] Figure 1 A schematic diagram of the hardware structure of a mobile terminal to implement the various embodiments of this application; Figure 2 A communication network system architecture diagram provided in this application embodiment; Figure 3 A schematic diagram of the hardware structure of a controller 140 provided in this application; Figure 4 A schematic diagram of the hardware structure of a network node 150 provided in this application; Figure 5This is a schematic flowchart illustrating the processing method of the first embodiment of this application; Figure 6 This is a schematic diagram of a scenario illustrating the processing method in the second embodiment of this application; Figure 7 This is a schematic diagram illustrating a processing method according to the third embodiment of this application. Figure 8 This is a schematic diagram of a scenario illustrating the processing method in the fourth embodiment of this application; Figure 9 This is a schematic diagram of a scenario illustrating the processing method in the fifth embodiment of this application; Figure 10 This is a schematic flowchart illustrating the processing method of the sixth embodiment of this application; Figure 11 This is a schematic diagram illustrating the interaction flow between a network device and a terminal device in the processing method shown in the tenth embodiment of this application; Figure 12 Schematic diagram of the processing apparatus provided in the embodiments of this application Figure 1 ; Figure 13 Schematic diagram of the processing apparatus provided in the embodiments of this application Figure 2 ; Figure 14 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application.

[0026] The realization of the objectives, functional features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0028] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element, and / or, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0029] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, may be interpreted as "when," "when," or "in response to determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising," "including," indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used in this application, may be interpreted as inclusive, or mean any one or any combination thereof. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Similarly, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0030] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0031] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0032] It should be noted that step designations such as S1 and S2 are used in this document for the purpose of more clearly and concisely describing the corresponding content, and do not constitute a substantial limitation on the order. In specific implementation, those skilled in the art may execute S2 first and then S1, etc., but these should all be within the protection scope of this application.

[0033] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0034] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0035] The communication equipment mentioned in this application may be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific meaning needs to be clarified according to the context.

[0036] Terminal devices can be implemented in various forms. For example, the terminal devices described in this application may include smart terminal devices such as mobile phones, tablets, laptops, handheld computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminal devices such as digital TVs and desktop computers.

[0037] The following description will use a mobile terminal as an example. Those skilled in the art will understand that, apart from elements specifically designed for mobile purposes, the construction according to the embodiments of this application can also be applied to fixed-type terminal devices.

[0038] Please see Figure 1 This is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of this application. The mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (Audio / Video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, etc. Those skilled in the art will understand that... Figure 1 The mobile terminal structure shown does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0039] The following is combined Figure 1 A detailed introduction to each component of the mobile terminal: The radio frequency unit 101 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink information from the base station and processes it with the processor 110; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. And / or, the radio frequency unit 101 can also communicate wirelessly with networks and other devices. The aforementioned wireless communications may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G, and 6G.

[0040] WiFi is a short-range wireless transmission technology. Mobile terminals, through the WiFi module 102, can help users send and receive emails, browse web pages, and access streaming media, providing users with wireless broadband internet access. Although Figure 1 WiFi module 102 is shown, but it is understood that it is not a necessary component of a mobile terminal and can be omitted as needed without changing the nature of the invention.

[0041] The audio output unit 103 can convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into audio signals and output them as sound when the mobile terminal 100 is in call signal receiving mode, call mode, recording mode, voice recognition mode, broadcast receiving mode, or other modes. Furthermore, the audio output unit 103 can also provide audio output related to specific functions performed by the mobile terminal 100 (e.g., call signal receiving sound, message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0042] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) in operating modes such as telephone call mode, recording mode, and voice recognition mode, and can process such sound into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in telephone call mode. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0043] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the ambient light level, and the proximity sensor can turn off the display panel 1061 and / or backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. Other sensors that may be configured in the phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, will not be described in detail here.

[0044] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0045] User input unit 107 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the mobile terminal. Optionally, user input unit 107 may include touch panel 1071 and other input devices 1072. Touch panel 1071, also known as touch screen, can collect touch operations on or near the user (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 1071), and drive corresponding connection devices according to a pre-set program. Touch panel 1071 may include two parts: touch detection device and touch controller. Optionally, touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to touch controller; touch controller receives touch information from touch detection device, converts it into touch point coordinates, and sends it to processor 110, and can receive and execute commands from processor 110. And / or, touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Optionally, other input devices 1072 may include, but are not limited to, one or more of the following: physical keyboard, function keys (such as volume control buttons, power buttons, etc.), trackball, mouse, joystick, etc., without being specifically limited here.

[0046] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides corresponding visual output on the display panel 1061 based on the type of touch event. Although in Figure 1 In this embodiment, the touch panel 1071 and the display panel 1061 are two independent components to realize the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the mobile terminal. The specific implementation is not limited here.

[0047] Interface unit 108 serves as an interface through which at least one external device can connect to mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. Interface unit 108 may be used to receive input (e.g., data, power, etc.) from the external device and transmit the received input to one or more components within mobile terminal 100, or it may be used to transmit data between mobile terminal 100 and the external device.

[0048] The memory 109 can be used to store software programs and various data. The memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). And / or, the memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0049] The processor 110 is the control center of the mobile terminal. It connects various parts of the mobile terminal via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 109, and by calling data stored in the memory 109, it performs various functions and processes data of the mobile terminal, thereby providing overall monitoring of the mobile terminal. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 110.

[0050] The mobile terminal 100 may also include a power supply 111 (such as a battery) that supplies power to various components. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0051] although Figure 1 As not shown, the mobile terminal 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0052] To facilitate understanding of the embodiments of this application, the communication network system on which the mobile terminal of this application is based is described below.

[0053] Please see Figure 2 , Figure 2This application provides a communication network system architecture diagram. The communication network system is a New Radio (NR) system based on general mobile communication technology. The NR system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and the operator's IP services 204, which are connected in sequence.

[0054] Optionally, UE201 can be the aforementioned terminal device 100, which will not be described in detail here.

[0055] E-UTRAN202 includes eNodeB2021 and other eNodeB2022s. Optionally, eNodeB2021 can connect to other eNodeB2022s via backhaul (e.g., X2 interface). eNodeB2021 connects to EPC203 and can provide UE201 with access to EPC203.

[0056] EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gateway) 2034, a PGW (Packet Data Network Gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, MME2031 is the control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as the Home Location Register (not shown in the figure) and stores user-specific information such as service characteristics and data rates. All user data can be sent through SGW2034. PGW2035 can provide UE 201 IP address allocation and other functions. PCRF2036 is the policy and charging control decision point for service data flow and IP bearer resources. It selects and provides available policy and charging control decisions for the policy and charging enforcement function unit (not shown in the figure).

[0057] IP services 204 may include the Internet, intranet, IMS (IP Multimedia Subsystem), or other IP services.

[0058] Although the above description uses the LTE system as an example, those skilled in the art should know that this application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., without limitation.

[0059] Figure 3 This is a schematic diagram of the hardware structure of a controller 140 provided in this application. The controller 140 includes a memory 1401 and a processor 1402. The memory 1401 is used to store program instructions, and the processor 1402 is used to call the program instructions in the memory 1401 to execute the steps performed by the controller in the first embodiment of the above method. The implementation principle and beneficial effects are similar, and will not be described again here.

[0060] Optionally, the controller further includes a communication interface 1403, which can be connected to the processor 1402 via a bus 1404. The processor 1402 can control the communication interface 1403 to implement the receiving and sending functions of the controller 140.

[0061] Figure 4 This application provides a schematic diagram of the hardware structure of a network node 150. The network node 150 includes a memory 1501 and a processor 1502. The memory 1501 is used to store program instructions, and the processor 1502 is used to call the program instructions in the memory 1501 to execute the steps performed by the first node in the first embodiment of the above method. The implementation principle and beneficial effects are similar, and will not be described again here.

[0062] Optionally, the controller further includes a communication interface 1503, which can be connected to the processor 1502 via a bus 1504. The processor 1502 can control the communication interface 1503 to implement the receiving and sending functions of the network node 150.

[0063] The integrated modules described above, implemented as software functional modules, can be stored in a computer-readable storage medium. These software functional modules, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods of the various embodiments of this application.

[0064] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk, SSD), etc.

[0065] Based on the above-described mobile terminal hardware structure and communication network system, various embodiments of this application are proposed.

[0066] Technical terms used in this embodiment: SSB: Synchronization Signal Block; PRACH: Physical Random Access Channel.

[0067] First Embodiment Reference Figure 5 , Figure 5 This is a flowchart illustrating the processing method of the first embodiment of this application. The processing method of this embodiment can be applied to a terminal device (such as a mobile phone), and includes step S1: Step S1: The terminal device determines the timing of physical random access to the channel in response to the first condition being met.

[0068] This embodiment takes into account that existing physical random access channel transmission mechanisms are imperfect. For example, existing protocols do not support transmission through multiple physical random access channels based on different transmit beams. Due to this limitation, terminal devices need to repeatedly perform beam scanning during random access to determine the optimal uplink transmit beam, which leads to a decrease in beam scanning efficiency.

[0069] Therefore, this embodiment proposes a solution whereby the terminal device determines the timing of the physical random access channel in response to satisfying the first condition. This embodiment clarifies how to determine the timing of the physical random access channel, enabling the terminal device to support multiple physical random access channel transmissions with different transmit beams, thereby improving the physical random access channel transmission mechanism.

[0070] Optionally, the terminal device sends a random access preamble when the physical random access channel is accessed.

[0071] Optionally, the network device receives the random access preamble during the physical random access channel.

[0072] Alternatively, network equipment may be base stations, etc.

[0073] Optionally, the terminal device determines the timing of the physical random access channel in response to the satisfaction of the first condition, including at least one of the following: In response to satisfying the first condition, the terminal device determines a number of physical random access channel opportunities from a set of physical random access channel opportunities for transmission of different transmit beams via physical random access channels. In response to satisfying the first condition, the terminal device determines a first number of physical random access channel opportunities from the set of physical random access channel opportunities for different transmit beams for transmission via physical random access channels for different transmit beams. In response to satisfying the first condition, the terminal device determines the number of physical random access channel opportunities for different transmission beams in the set of physical random access channel opportunities for different transmission beams.

[0074] Optionally, the first number is related to the different number of transmitted beams and / or the number of times the preamble of the same beam is repeated.

[0075] Optionally, the first number is equal to the product of the number of different transmitted beams and the number of times the preamble of the same beam is repeated.

[0076] Optionally, the physical random access channel timing is the effective physical random access channel timing for physical random access channel transmission of different transmit beams.

[0077] Optionally, different transmit beams correspond to different space filters.

[0078] Optionally, in response to satisfying the first condition, the terminal device determines a number of physical random access channel opportunities with different transmit beams in a set of physical random access channel opportunities for physical random access channel transmission with different transmit beams. Specifically, on the number of physical random access channel opportunities with different transmit beams in the set of physical random access channel opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0079] Optionally, in response to satisfying the first condition, the terminal device determines a first number of physical random access channel (PRAM) opportunities from the set of different transmit beam PRAM opportunities for PRAM transmission of different transmit beams. Specifically, on the first number of PRAM opportunities from the set of different transmit beam PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0080] Optionally, in response to satisfying the first condition, the terminal device determines different numbers of physical random access channel (PRAM) opportunities from the set of different numbers of PRAM opportunities for different transmission beams for PRAM transmission of different transmission beams. Specifically, on the different numbers of PRAM opportunities from the set of different numbers of PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit the random access preamble.

[0081] Optionally, the physical random access channel timing is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset, and second offset.

[0082] Optionally, at least one of the following can be configured by system message 1 and / or radio resource control information: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel opportunities for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset.

[0083] Optionally, the number of transmit beams, the number of synchronization signal blocks, the number of physical random access channel opportunities for frequency division multiplexing in a time instance, the number of preamble repetitions for the same beam, the first offset, and the second offset are positive integers.

[0084] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0085] Optionally, X is less than or equal to the number of repetitions of the preamble of the same beam.

[0086] Optionally, X is a positive integer.

[0087] Optionally, X is configured by system message 1 and / or radio resource control information.

[0088] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets. Specifically, when X is 1, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the first valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0089] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0090] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one synchronization signal block index.

[0091] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index.

[0092] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices.

[0093] Optionally, the number of synchronization signal block indices associated with the physical random access channel timing is configured by system message 1 and / or radio resource control information.

[0094] Optionally, if the number of synchronization block indices associated with a physical random access channel opportunity is 1, then the effective physical random access channel opportunities of different transmit beams are associated with the same synchronization block index; specifically, if the number of synchronization block indices associated with a physical random access channel opportunity is P, then the effective physical random access channel opportunities of different transmit beams are associated with the same P synchronization block indices.

[0095] Optionally, P is a positive integer.

[0096] Optionally, different numbers of physical random access channel timing sets lie within a time period.

[0097] Optionally, the number of valid physical random access channel opportunities of different transmit beams in a physical random access channel opportunity set lies within a time period.

[0098] Optionally, the number of repetitions of the preamble of the same beam in a set of physical random access channel opportunities falls within a time period.

[0099] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and each synchronization signal block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0100] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices.

[0101] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0102] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0103] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0104] Optionally, the set of physical random access channel opportunities within a time period satisfies at least one of the following: The first valid physical random access channel opportunity in the first set of physical random access channel opportunities is the first valid physical random access channel opportunity within the time period; After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the first consecutive valid physical random access channel opportunities in the time domain. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the second consecutive time slot in the time domain. If the first parameter is configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the first valid physical random access channel timing of the previous physical random access channel timing set, and is offset in the time domain by the first parameter consecutive valid physical random access channel timings. If the first parameter is not configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the physical random access channel timing of the previous physical random access channel timing set. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity in each subsequent set of physical random access channel opportunities is first sorted in ascending order by the frequency domain resource index of the frequency division multiplexing physical random access channel opportunity, and then sorted in ascending order by the time domain resource index of the time division multiplexing physical random access channel opportunity.

[0105] Optionally, the first parameter is the msg1-RepetitionTimeOffsetROGroup parameter.

[0106] Optionally, the first parameter is configured by system message 1 and / or radio resource control information.

[0107] Optionally, for each frequency domain resource index of the physical random access channel timing for frequency division multiplexing, the first valid physical random access channel timing of the first physical random access channel timing set is the first valid physical random access channel timing under that frequency domain resource index.

[0108] Alternatively, for paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities.

[0109] Optionally, for unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing.

[0110] Optionally, for unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block within the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell within that physical random access channel time slot is a valid physical random access channel timing.

[0111] Optionally, the second parameter is the tdd-UL-DL-ConfigurationCommon parameter.

[0112] Optionally, the second parameter is configured by system message 1 and / or radio resource control information.

[0113] Optionally, the values ​​for Ngap are shown in Table 1: Table 1: Different preamble subcarrier spacings value

[0114] Optionally, the physical random access channel timing does not include the physical random access channel timing in the subband full-duplex symbols.

[0115] Optionally, the physical random access channel timing does not include physical random access channel timing for physical random access channel time-domain adaptation.

[0116] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the effective physical random access channel timings in subband full-duplex symbols.

[0117] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the physical random access channel timings configured by the higher-layer parameter addl-RACH-Config-Adaptation.

[0118] Optionally, addl-RACH-Config-Adaptation is configured by System Message 1 and / or Radio Resource Control information.

[0119] Optionally, the association period refers to a period starting from frame 0 used to map the synchronization signal block index to the physical random access channel timing.

[0120] Optionally, the association period is the smallest integer value in the set determined by the physical random access channel configuration period in Table 2, and it is required that within one association period, the index of the actual transmitted synchronization signal block is mapped to the physical random access channel timing at least once.

[0121] Optionally, if, within an association period, after a number of integer cycles of mapping synchronization block indices to physical random access channel timings, there is still a set of physical random access channel timings or physical random access channel preambles that have not been mapped to at least one synchronization block index, then these physical random access channel timings or preambles will not be assigned any synchronization block index.

[0122] Optionally, the association mode period includes one or more association periods, and the mapping pattern between the physical random access channel timing and the synchronization signal block index is repeated at most once every 160 milliseconds within an association mode period.

[0123] Optionally, if there are still physical random access channel opportunities not associated with the synchronization signal block index after a certain number of associated periods, these opportunities will not be used for physical random access channel transmission.

[0124] Table 2: Mapping between PRACH configuration cycle and the correlation cycle from synchronization signal block to PRACH timing

[0125] Through the technical solution of this embodiment, the terminal device determines the timing of the physical random access channel in response to the fulfillment of the first condition. This embodiment clarifies the technical solution for determining the timing of the physical random access channel. Therefore, the terminal device can perform multiple physical random access channel transmissions on different transmit beams, thereby supporting a complete physical random access channel transmission mechanism.

[0126] Second Embodiment Based on the first embodiment of this application, a second embodiment of this application is proposed, which further discloses a method for determining the timing of a physical random access channel.

[0127] Optionally, in response to the fulfillment of the first condition, the terminal device determines the timing of the physical random access channel, thus clarifying the technical solution for determining the timing of the physical random access channel. Therefore, the terminal device can support the transmission of multiple physical random access channels with different beams, thereby improving the physical random access channel transmission mechanism.

[0128] Optionally, the terminal device determines the physical random access channel timing in response to satisfying the first condition. Specifically, the terminal device determines a number of physical random access channel timings from a set of different transmit beams for physical random access channel transmission of different transmit beams in response to satisfying the first condition.

[0129] Optionally, the physical random access channel timing is the effective physical random access channel timing for physical random access channel transmission of different transmit beams.

[0130] Optionally, different transmit beams correspond to different space filters.

[0131] Optionally, in response to satisfying the first condition, the terminal device determines a number of different physical random access channel opportunities from a set of physical random access channel opportunities for different transmission beams to transmit physical random access channels. Specifically, on the different number of physical random access channel opportunities from a set of physical random access channel opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0132] Optionally, the physical random access channel timing is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset, and second offset.

[0133] Optionally, at least one of the following can be configured by system message 1 and / or radio resource control information: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel opportunities for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset.

[0134] Optionally, the number of transmit beams, the number of synchronization signal blocks, the number of physical random access channel opportunities for frequency division multiplexing in a time instance, the number of preamble repetitions for the same beam, the first offset, and the second offset are positive integers.

[0135] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings.

[0136] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one synchronization signal block index.

[0137] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index.

[0138] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices.

[0139] Optionally, the number of synchronization signal block indices associated with the physical random access channel timing is configured by system message 1 and / or radio resource control information.

[0140] Optionally, if the number of synchronization block indices associated with a physical random access channel opportunity is 1, then the effective physical random access channel opportunities of different transmit beams are associated with the same synchronization block index; specifically, if the number of synchronization block indices associated with a physical random access channel opportunity is P, then the effective physical random access channel opportunities of different transmit beams are associated with the same P synchronization block indices.

[0141] Optionally, P is a positive integer.

[0142] Optionally, the number of valid physical random access channel opportunities of different transmit beams in a physical random access channel opportunity set lies within a time period.

[0143] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and each synchronization signal block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0144] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices.

[0145] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0146] Optionally, the set of physical random access channel opportunities within a time period satisfies at least one of the following: The first valid physical random access channel opportunity in the first set of physical random access channel opportunities is the first valid physical random access channel opportunity within the time period; If the first parameter is configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the first valid physical random access channel timing of the previous physical random access channel timing set, and is offset in the time domain by the first parameter consecutive valid physical random access channel timings. If the first parameter is not configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the physical random access channel timing of the previous physical random access channel timing set. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity in each subsequent set of physical random access channel opportunities is first sorted in ascending order by the frequency domain resource index of the frequency division multiplexing physical random access channel opportunity, and then sorted in ascending order by the time domain resource index of the time division multiplexing physical random access channel opportunity.

[0147] Optionally, the first parameter is the msg1-RepetitionTimeOffsetROGroup parameter.

[0148] Optionally, the first parameter is configured by system message 1 and / or radio resource control information.

[0149] Optionally, for each frequency domain resource index of the PRACH timing for frequency division multiplexing, the first valid physical random access channel timing of the first physical random access channel timing set is the first valid physical random access channel timing under that frequency domain resource index.

[0150] Alternatively, for paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities.

[0151] Optionally, for unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing.

[0152] Optionally, for unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block within the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell within that physical random access channel time slot is a valid physical random access channel timing.

[0153] Optionally, the values ​​for Ngap are shown in Table 1.

[0154] Optionally, the second parameter is the tdd-UL-DL-ConfigurationCommon parameter.

[0155] Optionally, the second parameter is configured by system message 1 and / or radio resource control information.

[0156] Optionally, the physical random access channel timing does not include the physical random access channel timing in the subband full-duplex symbols.

[0157] Optionally, the physical random access channel timing does not include physical random access channel timing for physical random access channel time-domain adaptation.

[0158] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the effective physical random access channel timings in subband full-duplex symbols.

[0159] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the physical random access channel timings configured by the higher-layer parameter addl-RACH-Config-Adaptation.

[0160] Optionally, addl-RACH-Config-Adaptation is configured by System Message 1 and / or Radio Resource Control information.

[0161] Optionally, the number of actual transmitted synchronization signal blocks and the index of the actual transmitted synchronization signal blocks are configured by system message 1 and / or radio resource control information.

[0162] Optionally, the number of physical random access channel opportunities for frequency division multiplexing in a time instance is configured by system message 1 and / or radio resource control information.

[0163] Optionally, such as Figure 6 As shown, the actual number of synchronization signal blocks transmitted is set to 2, and the indexes of the actual transmitted synchronization signal blocks are 0 and 1 (that is, the actual transmitted synchronization signal blocks are SSB 0 and SSB 1).

[0164] Optionally, if the number of physical random access channel opportunities in a time instance is 2, that is, the number of physical random access channel opportunities in the frequency domain in a time instance is 2, and a synchronization signal block is associated with 2 physical random access channel opportunities, then the 2 physical random access channel opportunities in the frequency domain are associated with the same synchronization signal block.

[0165] Optionally, if the number of different transmit beams N is 2, then the two physical random access channel opportunities associated with the same synchronization signal block in the time domain constitute a physical random access channel opportunity set. For example, the two physical random access channel opportunities of synchronization signal block 0 under the first frequency domain index constitute a physical random access channel opportunity set (e.g., Figure 6 (As shown by the shading on the left side of the middle section); For example, the two physical random access channel opportunities associated with the synchronization signal block 0 in the time domain under the second frequency domain index form another set of physical random access channel opportunities (such as...). Figure 6 (As indicated by the shading in the middle horizontal line).

[0166] Optionally, the terminal device transmits random access preambles with different beams on different physical random access channel opportunities within a set of physical random access channel opportunities determined by the first condition. Specifically, if the terminal device selects the first set of physical random access channel opportunities to transmit random access preambles with different beams, and both physical random access channel opportunities in the first set of physical random access channel opportunities are valid physical random access channel opportunities, that is, the terminal device transmits random access preambles with different beams on different physical random access channel opportunities within the first set of physical random access channel opportunities. Figure 6 On two valid physical random access channel opportunities in the set of physical random access channel opportunities shaded by the middle left diagonal line, two random access preambles with different transmit beams are transmitted.

[0167] Optionally, the association period refers to a period starting from frame 0 used to map the synchronization signal block index to the physical random access channel timing.

[0168] Optionally, the association period is the smallest integer value in the set determined by the physical random access channel configuration period in Table 2, and it is required that within one association period, the index of the actual transmitted synchronization signal block is mapped to the physical random access channel timing at least once.

[0169] Optionally, if, within an association period, after a number of integer cycles of mapping synchronization block indices to physical random access channel timings, there is still a set of physical random access channel timings or physical random access channel preambles that have not been mapped to at least one synchronization block index, then these physical random access channel timings or preambles will not be assigned any synchronization block index.

[0170] Optionally, the association mode period includes one or more association periods, and the mapping pattern between the physical random access channel timing and the synchronization signal block index is repeated at most once every 160 milliseconds within an association mode period.

[0171] Optionally, if there are still physical random access channel opportunities not associated with the synchronization signal block index after a certain number of associated periods, these opportunities will not be used for physical random access channel transmission.

[0172] In this embodiment, the terminal device determines the physical random access channel (PRAM) timing in response to a first condition. Specifically, the terminal device determines a different number of PRAM timings from a set of PRAM timings used for PRAM transmission on different transmit beams in response to the first condition. This embodiment enables the terminal device to determine a set of PRAM timings to support multiple PRAM transmissions on different transmit beams. Therefore, the terminal device can perform multiple PRAM transmissions on different transmit beams, thereby improving random access performance. Based on this embodiment, the terminal device can complete random access transmissions on different transmit beams, and / or improve random access flexibility and / or overall performance, while maintaining compatibility with existing protocols.

[0173] Third Embodiment Based on any of the above embodiments of this application, a third embodiment of this application is proposed, which further discloses a method for determining the timing of a physical random access channel.

[0174] Optionally, in response to the fulfillment of the first condition, the terminal device determines the timing of the physical random access channel, thus clarifying the technical solution for determining the timing of the physical random access channel. Therefore, the terminal device can support the transmission of multiple physical random access channels with different beams, thereby improving the physical random access channel transmission mechanism.

[0175] Optionally, the terminal device determines the physical random access channel timing in response to satisfying the first condition. Specifically, in response to satisfying the first condition, the terminal device determines a first number of physical random access channel timings from a set of physical random access channel timings for different transmit beams for physical random access channel transmission of different transmit beams.

[0176] Optionally, the first number is related to the different number of transmitted beams and / or the number of times the preamble of the same beam is repeated.

[0177] Optionally, the first number is equal to the product of the number of different transmitted beams and the number of times the preamble of the same beam is repeated.

[0178] Optionally, the physical random access channel timing is the effective physical random access channel timing for physical random access channel transmission of different transmit beams.

[0179] Optionally, different transmit beams correspond to different space filters.

[0180] Optionally, in response to satisfying the first condition, the terminal device determines a first number of physical random access channel (PRAM) opportunities from the set of different transmit beam PRAM opportunities for PRAM transmission of different transmit beams. Specifically, on the first number of PRAM opportunities from the set of different transmit beam PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0181] Optionally, the physical random access channel timing is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset, and second offset.

[0182] Optionally, at least one of the following can be configured by system message 1 and / or radio resource control information: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel opportunities for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset.

[0183] Optionally, the number of transmit beams, the number of synchronization signal blocks, the number of physical random access channel opportunities for frequency division multiplexing in a time instance, the number of preamble repetitions for the same beam, the first offset, and the second offset are positive integers.

[0184] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. The physical random access channel timings used for physical random access channel transmissions of different transmit beams belong to different physical random access channel timing sets.

[0185] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one synchronization signal block index.

[0186] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index.

[0187] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices.

[0188] Optionally, the number of synchronization signal block indices associated with the physical random access channel timing is configured by system message 1 and / or radio resource control information.

[0189] Optionally, if the number of synchronization block indices associated with a physical random access channel opportunity is 1, then the effective physical random access channel opportunities of different transmit beams are associated with the same synchronization block index; specifically, if the number of synchronization block indices associated with a physical random access channel opportunity is P, then the effective physical random access channel opportunities of different transmit beams are associated with the same P synchronization block indices.

[0190] Optionally, P is a positive integer.

[0191] Optionally, different numbers of physical random access channel timing sets lie within a time period.

[0192] Optionally, the number of repetitions of the preamble of the same beam in a set of physical random access channel opportunities falls within a time period.

[0193] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0194] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0195] Optionally, the set of physical random access channel opportunities within a time period satisfies at least one of the following: The first valid physical random access channel opportunity in the first set of physical random access channel opportunities is the first valid physical random access channel opportunity within the time period; If the first parameter is configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the first valid physical random access channel timing of the previous physical random access channel timing set, and is offset in the time domain by the first parameter consecutive valid physical random access channel timings. If the first parameter is not configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the physical random access channel timing of the previous physical random access channel timing set. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity in each subsequent set of physical random access channel opportunities is first sorted in ascending order by the frequency domain resource index of the frequency division multiplexing physical random access channel opportunity, and then sorted in ascending order by the time domain resource index of the time division multiplexing physical random access channel opportunity.

[0196] Optionally, the first parameter is the msg1-RepetitionTimeOffsetROGroup parameter.

[0197] Optionally, the first parameter is configured by system message 1 and / or radio resource control information.

[0198] Optionally, for each frequency domain resource index of the PRACH timing for frequency division multiplexing, the first valid physical random access channel timing of the first physical random access channel timing set is the first valid physical random access channel timing under that frequency domain resource index.

[0199] Alternatively, for paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities.

[0200] Optionally, for unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing.

[0201] Optionally, for unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block within the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell within that physical random access channel time slot is a valid physical random access channel timing.

[0202] Optionally, the values ​​for Ngap are shown in Table 1.

[0203] Optionally, the second parameter is the tdd-UL-DL-ConfigurationCommon parameter.

[0204] Optionally, the second parameter is configured by system message 1 and / or radio resource control information.

[0205] Optionally, the physical random access channel timing does not include the physical random access channel timing in the subband full-duplex symbols.

[0206] Optionally, the physical random access channel timing does not include physical random access channel timing for physical random access channel time-domain adaptation.

[0207] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the effective physical random access channel timings in subband full-duplex symbols.

[0208] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the physical random access channel timings configured by the higher-layer parameter addl-RACH-Config-Adaptation.

[0209] Optionally, addl-RACH-Config-Adaptation is configured by System Message 1 and / or Radio Resource Control information.

[0210] Optionally, such as Figure 7 As shown, the actual number of synchronization signal blocks transmitted is set to 2, and the indexes of the actual transmitted synchronization signal blocks are 0 and 1 (that is, the actual transmitted synchronization signal blocks are SSB 0 and SSB 1).

[0211] Optionally, if the number of physical random access channel opportunities in a time instance is 2, that is, the number of physical random access channel opportunities in the frequency domain in a time instance is 2, and a synchronization signal block is associated with 2 physical random access channel opportunities, then the 2 physical random access channel opportunities in the frequency domain are associated with the same synchronization signal block.

[0212] Optionally, if the number of different transmit beams is 2, and the number of repetitions of the preamble of the same beam is 2, then the two physical random access channel opportunities associated with the same synchronization signal block in the time domain constitute a physical random access channel opportunity set. For example, the two physical random access channel opportunities associated with synchronization signal block 0 in the time domain under the first frequency domain index constitute the first physical random access channel opportunity set (e.g., Figure 7 (Middle left slanted shaded area); For example, the two physical random access channel opportunities associated with the synchronization signal block 0 in the time domain under the second frequency domain index constitute the second physical random access channel opportunity set (e.g.) Figure 7(Hyperlined line); For example, the two physical random access channel opportunities of the time-domain associated synchronization signal block 0 under the first frequency domain index after the first physical random access channel opportunity set constitute the third physical random access channel opportunity set (e.g.) Figure 7 (As shown by the shading on the right side of the middle section); For example, the two physical random access channel opportunities associated with the synchronization signal block 0 in the time domain under the second frequency domain index after the second physical random access channel opportunity set constitute the fourth physical random access channel opportunity set (e.g., Figure 7 (As indicated by the vertical shading).

[0213] Optionally, the terminal device transmits random access preambles for different beams on a first number of physical random access channel opportunities within a set of different beam physical random access channel opportunities that satisfies the first condition. Specifically, if the number of different transmit beams is 4, and at least two physical random access channel opportunity sets within the set of different transmit beam physical random access channel opportunities use different frequency domain resources, then the terminal device selects 8 physical random access channel opportunities within this consecutive set of different transmit beam physical random access channel opportunities (number of different transmit beams * number of repetitions of the preamble for the same beam) for transmission on 4 different transmit beam physical random access channels.

[0214] Optionally, such as Figure 7 As shown, the physical random access channel timing set shaded by the left diagonal line is used for the two repeated transmissions of beam 1; the horizontal shading set is used for the two repeated transmissions of beam 2; the physical random access channel timing set shaded by the right diagonal line is used for the two repeated transmissions of beam 3; and the vertical shading set is used for the two repeated transmissions of beam 4.

[0215] Optionally, the association period refers to a period starting from frame 0 used to map the synchronization signal block index to the physical random access channel timing.

[0216] Optionally, the association period is the smallest integer value in the set determined by the physical random access channel configuration period in Table 2, and it is required that within one association period, the index of the actual transmitted synchronization signal block is mapped to the physical random access channel timing at least once.

[0217] Optionally, if, within an association period, after a number of integer cycles of mapping synchronization block indices to physical random access channel timings, there is still a set of physical random access channel timings or physical random access channel preambles that have not been mapped to at least one synchronization block index, then these physical random access channel timings or preambles will not be assigned any synchronization block index.

[0218] Optionally, the association mode period includes one or more association periods, and the mapping pattern between the physical random access channel timing and the synchronization signal block index is repeated at most once every 160 milliseconds within an association mode period.

[0219] Optionally, if there are still physical random access channel opportunities not associated with the synchronization signal block index after a certain number of associated periods, these opportunities will not be used for physical random access channel transmission.

[0220] In this embodiment, the terminal device determines the physical random access channel (PRAM) timing in response to satisfying a first condition. Specifically, in response to satisfying the first condition, the terminal device determines a first number of PRAM timings from a set of multiple PRAM timings for different transmit beams used for PRAM transmission with different transmit beams. Compared to the second embodiment, this embodiment can determine a set of PRAM timings for the terminal device to support multiple PRAM transmissions with different transmit beams while maintaining repeated transmission of the same beam. Therefore, based on this embodiment, the transmission of PRAMs with the same beam can be guaranteed, and / or the transmission of PRAMs with different beams can be achieved, and / or compatibility with existing protocols can be maintained.

[0221] Fourth embodiment Based on any of the above embodiments of this application, a fourth embodiment of this application is proposed, which further discloses a method for determining the timing of a physical random access channel.

[0222] Optionally, in response to the fulfillment of the first condition, the terminal device determines the timing of the physical random access channel, thus clarifying the technical solution for determining the timing of the physical random access channel. Therefore, the terminal device can support the transmission of multiple physical random access channels with different beams, thereby improving the physical random access channel transmission mechanism.

[0223] Optionally, the terminal device determines the physical random access channel timing in response to satisfying the first condition. Specifically, in response to satisfying the first condition, the terminal device determines different numbers of physical random access channel timings from the set of different numbers of transmit beams for physical random access channel transmission of different transmit beams.

[0224] Optionally, the physical random access channel timing is the effective physical random access channel timing for physical random access channel transmission of different transmit beams.

[0225] Optionally, different transmit beams correspond to different space filters.

[0226] Optionally, in response to satisfying the first condition, the terminal device determines different numbers of physical random access channel (PRAM) opportunities from the set of different numbers of PRAM opportunities for different transmission beams for PRAM transmission of different transmission beams. Specifically, on the different numbers of PRAM opportunities from the set of different numbers of PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit the random access preamble.

[0227] Optionally, the physical random access channel timing is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset, and second offset.

[0228] Optionally, at least one of the following can be configured by system message 1 and / or radio resource control information: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel opportunities for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset.

[0229] Optionally, the number of transmit beams, the number of synchronization signal blocks, the number of physical random access channel opportunities for frequency division multiplexing in a time instance, the number of preamble repetitions for the same beam, the first offset, and the second offset are positive integers.

[0230] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0231] Optionally, X is less than or equal to the number of repetitions of the preamble of the same beam.

[0232] Optionally, X is a positive integer.

[0233] Optionally, X is configured by system message 1 and / or radio resource control information.

[0234] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets. Specifically, when X is 1, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the first valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0235] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0236] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one synchronization signal block index.

[0237] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index.

[0238] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices.

[0239] Optionally, the number of synchronization signal block indices associated with the physical random access channel timing is configured by system message 1 and / or radio resource control information.

[0240] Optionally, if the number of synchronization block indices associated with a physical random access channel opportunity is 1, then the effective physical random access channel opportunities of different transmit beams are associated with the same synchronization block index; specifically, if the number of synchronization block indices associated with a physical random access channel opportunity is P, then the effective physical random access channel opportunities of different transmit beams are associated with the same P synchronization block indices.

[0241] Optionally, P is a positive integer.

[0242] Optionally, different numbers of physical random access channel timing sets lie within a time period.

[0243] Optionally, the number of repetitions of the preamble of the same beam in a set of physical random access channel opportunities falls within a time period.

[0244] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0245] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0246] Optionally, the set of physical random access channel opportunities within a time period satisfies at least one of the following: The first valid physical random access channel opportunity in the first set of physical random access channel opportunities is the first valid physical random access channel opportunity within the time period; After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the first consecutive valid physical random access channel opportunities in the time domain. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the second consecutive time slot in the time domain. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity in each subsequent set of physical random access channel opportunities is first sorted in ascending order by the frequency domain resource index of the frequency division multiplexing physical random access channel opportunity, and then sorted in ascending order by the time domain resource index of the time division multiplexing physical random access channel opportunity.

[0247] Optionally, for each frequency domain resource index of the physical random access channel timing for frequency division multiplexing, the first valid physical random access channel timing of the first physical random access channel timing set is the first valid physical random access channel timing under that frequency domain resource index.

[0248] Alternatively, for paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities.

[0249] Optionally, for unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing.

[0250] Optionally, for unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block within the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell within that physical random access channel time slot is a valid physical random access channel timing.

[0251] Optionally, the values ​​for Ngap are shown in Table 1.

[0252] Optionally, the second parameter is the tdd-UL-DL-ConfigurationCommon parameter.

[0253] Optionally, the second parameter is configured by system message 1 and / or radio resource control information.

[0254] Optionally, the physical random access channel timing does not include the physical random access channel timing in the subband full-duplex symbols.

[0255] Optionally, the physical random access channel timing does not include physical random access channel timing for physical random access channel time-domain adaptation.

[0256] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the effective physical random access channel timings in subband full-duplex symbols.

[0257] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the physical random access channel timings configured by the higher-layer parameter addl-RACH-Config-Adaptation.

[0258] Optionally, addl-RACH-Config-Adaptation is configured by System Message 1 and / or Radio Resource Control information.

[0259] Optionally, the number of actual transmitted synchronization signal blocks and the index of the actual transmitted synchronization signal blocks are configured by system message 1 and / or radio resource control information.

[0260] Optionally, the number of physical random access channel opportunities for frequency division multiplexing in a time instance is configured by system message 1 and / or radio resource control information.

[0261] Optionally, such as Figure 8 As shown, the actual number of synchronization signal blocks transmitted is set to 2, and the indexes of the actual transmitted synchronization signal blocks are 0 and 1 (that is, the actual transmitted synchronization signal blocks are SSB 0 and SSB 1).

[0262] Optionally, if the number of physical random access channel opportunities (PRANs) in a time instance is 1 (i.e., the number of PRANs in the frequency domain in a time instance is 1), and a synchronization block is associated with 1 PRAN, the number of different transmit beams is 2, and the number of repetitions of the preamble of the same beam is 2, then the two PRANs associated with the same synchronization block in the time domain constitute a set of PRANs. For example, Figure 8 The two physical random access channel opportunities of the synchronization signal block 0, which is shaded by the diagonal line in the middle left, constitute a physical random access channel opportunity set. Figure 8 The two physical random access channel opportunities of the synchronization signal block 0 (shaded by the horizontal line) constitute a physical random access channel opportunity set.

[0263] Optionally, the terminal device transmits random access preambles for different beams in response to different transmit beams of physical random access channel timings within a set of different beams of physical random access channel timings determined by the first condition. Specifically, if two adjacent sets of physical random access channel timings to which different transmit beams belong are offset in the time domain by a first offset of consecutive valid physical random access channel timings, and the number of different transmit beams is 2, and the sets of different transmit beams of physical random access channel timings use the same frequency domain resources, and X equals 1, then the terminal device selects the first physical random access channel timing from these two sets of physical random access channel timings for transmission of two different transmit beams of physical random access channels.

[0264] Optionally, Figure 8 The first physical random access channel timing, shaded by the middle left diagonal line, is used for beam 1 transmission; Figure 8 The first physical random access channel timing, shaded by the horizontal line, is used for beam 2 transmission.

[0265] Optionally, the association period refers to a period starting from frame 0 used to map the synchronization signal block index to the physical random access channel timing.

[0266] Optionally, the association period is the smallest integer value in the set determined by the physical random access channel configuration period in Table 2, and it is required that within one association period, the index of the actual transmitted synchronization signal block is mapped to the physical random access channel timing at least once.

[0267] Optionally, if, within an association period, after a number of integer cycles of mapping synchronization block indices to physical random access channel timings, there is still a set of physical random access channel timings or physical random access channel preambles that have not been mapped to at least one synchronization block index, then these physical random access channel timings or preambles will not be assigned any synchronization block index.

[0268] Optionally, the association mode period includes one or more association periods, and the mapping pattern between the physical random access channel timing and the synchronization signal block index is repeated at most once every 160 milliseconds within an association mode period.

[0269] Optionally, if there are still physical random access channel opportunities not associated with the synchronization signal block index after a certain number of associated periods, these opportunities will not be used for physical random access channel transmission.

[0270] In this embodiment, the terminal device determines the physical random access channel (PRAM) timing in response to a first condition. Specifically, the terminal device determines the number of different physical random access channel timings for different transmission beams within a set of different transmission beam PRAM timings for transmission on different transmission beams, in response to the first condition. Compared to the aforementioned embodiments, this embodiment ensures the time interval for switching between different transmission beams through the first condition, thereby reserving sufficient time for the terminal device to perform multiple PRAM transmissions on different transmission beams. Furthermore, this embodiment requires minimal modification to existing standards and specifications. Based on this embodiment, the switching time interval between different beam transmissions can be guaranteed, and / or the transmission of different beam PRAMs can be achieved.

[0271] Fifth Embodiment Based on any of the above embodiments of this application, a fifth embodiment of this application is proposed, which further discloses a method for determining the timing of a physical random access channel.

[0272] Optionally, in response to the fulfillment of the first condition, the terminal device determines the timing of the physical random access channel, thus clarifying the technical solution for determining the timing of the physical random access channel. Therefore, the terminal device can support the transmission of multiple physical random access channels with different beams and further improve the physical random access channel transmission mechanism.

[0273] Optionally, the terminal device determines the physical random access channel timing in response to satisfying the first condition. Specifically, in response to satisfying the first condition, the terminal device determines a first number of physical random access channel timings from a set of physical random access channel timings for different transmit beams for physical random access channel transmission of different transmit beams.

[0274] Optionally, the first number is related to the different number of transmitted beams and / or the number of times the preamble of the same beam is repeated.

[0275] Optionally, the first number is equal to the product of the number of different transmitted beams and the number of times the preamble of the same beam is repeated.

[0276] Optionally, the physical random access channel timing is the effective physical random access channel timing for physical random access channel transmission of different transmit beams.

[0277] Optionally, different transmit beams correspond to different space filters.

[0278] Optionally, in response to satisfying the first condition, the terminal device determines a first number of physical random access channel opportunities from the set of physical random access channel opportunities for different transmit beams for physical random access channel transmission of different transmit beams. Specifically, on the first number of physical random access channel opportunities from the set of physical random access channel opportunities for different transmit beams determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0279] Optionally, the physical random access channel timing is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset, and second offset.

[0280] Optionally, at least one of the following can be configured by system message 1 and / or radio resource control information: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel opportunities for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset.

[0281] Optionally, the number of transmit beams, the number of synchronization signal blocks, the number of physical random access channel opportunities for frequency division multiplexing in a time instance, the number of preamble repetitions for the same beam, the first offset, and the second offset are positive integers.

[0282] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0283] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one synchronization signal block index.

[0284] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index.

[0285] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices.

[0286] Optionally, the number of synchronization signal block indices associated with the physical random access channel timing is configured by system message 1 and / or radio resource control information.

[0287] Optionally, if the number of synchronization block indices associated with a physical random access channel opportunity is 1, then the effective physical random access channel opportunities of different transmit beams are associated with the same synchronization block index; specifically, if the number of synchronization block indices associated with a physical random access channel opportunity is P, then the effective physical random access channel opportunities of different transmit beams are associated with the same P synchronization block indices.

[0288] Optionally, P is a positive integer.

[0289] Optionally, different numbers of physical random access channel timing sets lie within a time period.

[0290] Optionally, the number of repetitions of the preamble of the same beam in a set of physical random access channel opportunities falls within a time period.

[0291] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0292] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0293] Optionally, the set of physical random access channel opportunities within a time period satisfies at least one of the following: The first valid physical random access channel opportunity in the first set of physical random access channel opportunities is the first valid physical random access channel opportunity within the time period; After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the first consecutive valid physical random access channel opportunities in the time domain. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the second consecutive time slot in the time domain. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity in each subsequent set of physical random access channel opportunities is first sorted in ascending order by the frequency domain resource index of the frequency division multiplexing physical random access channel opportunity, and then sorted in ascending order by the time domain resource index of the time division multiplexing physical random access channel opportunity.

[0294] Optionally, for each frequency domain resource index of the physical random access channel timing for frequency division multiplexing, the first valid physical random access channel timing of the first physical random access channel timing set is the first valid physical random access channel timing under that frequency domain resource index.

[0295] Alternatively, for paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities.

[0296] Optionally, for unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing.

[0297] Optionally, for unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block within the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell within that physical random access channel time slot is a valid physical random access channel timing.

[0298] Optionally, the second parameter is the tdd-UL-DL-ConfigurationCommon parameter.

[0299] Optionally, the second parameter is configured by system message 1 and / or radio resource control information.

[0300] Optionally, the values ​​for Ngap are shown in Table 1.

[0301] Optionally, the physical random access channel timing does not include the physical random access channel timing in the subband full-duplex symbols.

[0302] Optionally, the physical random access channel timing does not include physical random access channel timing for physical random access channel time-domain adaptation.

[0303] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the effective physical random access channel timings in subband full-duplex symbols.

[0304] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the physical random access channel timings configured by the higher-layer parameter addl-RACH-Config-Adaptation.

[0305] Optionally, addl-RACH-Config-Adaptation is configured by System Message 1 and / or Radio Resource Control information.

[0306] Optionally, such as Figure 9 As shown, the actual number of synchronization signal blocks transmitted is set to 2, and the indexes of the actual transmitted synchronization signal blocks are 0 and 1 (that is, the actual transmitted synchronization signal blocks are SSB 0 and SSB 1).

[0307] Optionally, if the number of physical random access channel opportunities (PRANs) in a time instance is 1 (i.e., the number of PRANs in the frequency domain in a time instance is 1), and a synchronization block is associated with 1 PRAN, the number of different transmit beams is 2, and the number of repetitions of the preamble of the same beam is 2, then the two PRANs associated with the same synchronization block in the time domain constitute a set of PRANs. For example, Figure 9 The two physical random access channel opportunities of the synchronization signal block 0, which is shaded by the diagonal line in the middle left, constitute a physical random access channel opportunity set. Figure 9 The two physical random access channel opportunities of the synchronization signal block 0 (shaded by the horizontal line) constitute a physical random access channel opportunity set.

[0308] Optionally, the terminal device transmits random access preambles for different beams on a first number of physical random access channel opportunities from a set of different beam physical random access channel opportunities determined by the first condition. Specifically, if two adjacent physical random access channel opportunity sets to which different transmit beams belong are offset in the time domain by a first offset of consecutive valid physical random access channel opportunities, and the number of different transmit beams is 2, and the sets of different transmit beam physical random access channel opportunities use the same frequency domain resources, then the terminal device selects 4 physical random access channel opportunities from these 2 physical random access channel opportunity sets: the number of different transmit beams * the number of repetitions of the preamble for the same beam.

[0309] Optionally, such as Figure 9 As shown, the left diagonal shading is used for the two repeated transmissions of beam 1; the horizontal shading is used for the two repeated transmissions of beam 2.

[0310] Optionally, the association period refers to a period starting from frame 0 used to map the synchronization signal block index to the physical random access channel timing.

[0311] Optionally, the association period is the smallest integer value in the set determined by the physical random access channel configuration period in Table 2, and it is required that within one association period, the index of the actual transmitted synchronization signal block is mapped to the physical random access channel timing at least once.

[0312] Optionally, if, within an association period, after a number of integer cycles of mapping synchronization block indices to physical random access channel timings, there is still a set of physical random access channel timings or physical random access channel preambles that have not been mapped to at least one synchronization block index, then these physical random access channel timings or preambles will not be assigned any synchronization block index.

[0313] Optionally, the association mode period includes one or more association periods, and the mapping pattern between the physical random access channel timing and the synchronization signal block index is repeated at most once every 160 milliseconds within an association mode period.

[0314] Optionally, if there are still physical random access channel opportunities not associated with the synchronization signal block index after a certain number of associated periods, these opportunities will not be used for physical random access channel transmission.

[0315] Through the technical solution of this embodiment, the terminal device, in response to satisfying the first condition, determines the physical random access channel timing. Specifically, the terminal device, in response to satisfying the first condition, determines a first number of physical random access channel timings from a set of physical random access channel timings for different transmit beams. This technical solution can determine resources for the terminal device to support multiple physical random access channel transmissions on different transmit beams while maintaining repeated transmission of the same beam. And / or, this technical solution guarantees the time interval for switching between different transmit beams through the first condition, thereby reserving sufficient time for the terminal device to perform multiple physical random access channel transmissions on different transmit beams. Based on this technical solution, the switching time interval between different beam transmissions can be guaranteed, and / or the transmission of physical random access channels for different beams can be realized, and / or the repeated transmission of the same beam can be guaranteed, and / or the robustness of physical random access channel transmission can be ensured.

[0316] Sixth Embodiment Reference Figure 10 , Figure 10 This is a flowchart illustrating the processing method of the sixth embodiment of this application. The processing method of this embodiment can be applied to network devices (such as base stations), including step S2: Step S2: The network device receives the random access preamble on the physical random access channel timing, which is determined by the terminal device in response to the satisfaction of the first condition.

[0317] Optionally, the terminal device determines the timing of the physical random access channel in response to the satisfaction of the first condition.

[0318] Optionally, the terminal device sends a random access preamble when the physical random access channel is accessed.

[0319] Optionally, the network device receives the random access preamble during the physical random access channel.

[0320] Alternatively, network equipment may be base stations, etc.

[0321] Optionally, the terminal device determines the timing of the physical random access channel in response to the satisfaction of the first condition, including at least one of the following: In response to satisfying the first condition, the terminal device determines a number of physical random access channel opportunities from a set of physical random access channel opportunities for transmission of different transmit beams via physical random access channels. In response to satisfying the first condition, the terminal device determines a first number of physical random access channel opportunities from the set of physical random access channel opportunities for different transmit beams for transmission via physical random access channels for different transmit beams. In response to satisfying the first condition, the terminal device determines the number of physical random access channel opportunities for different transmission beams in the set of physical random access channel opportunities for different transmission beams.

[0322] Optionally, the first number is related to the different number of transmitted beams and / or the number of times the preamble of the same beam is repeated.

[0323] Optionally, the first number is equal to the product of the number of different transmitted beams and the number of times the preamble of the same beam is repeated.

[0324] Optionally, the physical random access channel timing is the effective physical random access channel timing for physical random access channel transmission of different transmit beams.

[0325] Optionally, different transmit beams correspond to different space filters.

[0326] Optionally, in response to satisfying the first condition, the terminal device determines a number of different physical random access channel opportunities from a set of physical random access channel opportunities for different transmission beams to transmit physical random access channels. Specifically, on the different number of physical random access channel opportunities from a set of physical random access channel opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0327] Optionally, in response to satisfying the first condition, the terminal device determines a first number of physical random access channel (PRAM) opportunities from the set of different transmit beam PRAM opportunities for PRAM transmission of different transmit beams. Specifically, on the first number of PRAM opportunities from the set of different transmit beam PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0328] Optionally, in response to satisfying the first condition, the terminal device determines different numbers of physical random access channel (PRAM) opportunities from the set of different numbers of PRAM opportunities for different transmission beams for PRAM transmission of different transmission beams. Specifically, on the different numbers of PRAM opportunities from the set of different numbers of PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit the random access preamble.

[0329] Optionally, the physical random access channel timing is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset, and second offset.

[0330] Optionally, at least one of the following can be configured by system message 1 and / or radio resource control information: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel opportunities for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset.

[0331] Optionally, the number of transmit beams, the number of synchronization signal blocks, the number of physical random access channel opportunities for frequency division multiplexing in a time instance, the number of preamble repetitions for the same beam, the first offset, and the second offset are positive integers.

[0332] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0333] Optionally, X is less than or equal to the number of repetitions of the preamble of the same beam.

[0334] Optionally, X is a positive integer.

[0335] Optionally, X is configured by system message 1 and / or radio resource control information.

[0336] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets. Specifically, when X is 1, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the first valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0337] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0338] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one synchronization signal block index.

[0339] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index.

[0340] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices.

[0341] Optionally, the number of synchronization signal block indices associated with the physical random access channel timing is configured by system message 1 and / or radio resource control information.

[0342] Optionally, if the number of synchronization block indices associated with a physical random access channel opportunity is 1, then the effective physical random access channel opportunities of different transmit beams are associated with the same synchronization block index; specifically, if the number of synchronization block indices associated with a physical random access channel opportunity is P, then the effective physical random access channel opportunities of different transmit beams are associated with the same P synchronization block indices.

[0343] Optionally, P is a positive integer.

[0344] Optionally, different numbers of physical random access channel timing sets lie within a time period.

[0345] Optionally, the number of valid physical random access channel opportunities of different transmit beams in a physical random access channel opportunity set lies within a time period.

[0346] Optionally, the number of repetitions of the preamble of the same beam in a set of physical random access channel opportunities falls within a time period.

[0347] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and each synchronization signal block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0348] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices.

[0349] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0350] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0351] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0352] Optionally, the set of physical random access channel opportunities within a time period satisfies at least one of the following: The first valid physical random access channel opportunity in the first set of physical random access channel opportunities is the first valid physical random access channel opportunity within the time period; After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the first consecutive valid physical random access channel opportunities in the time domain. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the second consecutive time slot in the time domain. If the first parameter is configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the first valid physical random access channel timing of the previous physical random access channel timing set, and is offset in the time domain by the first parameter consecutive valid physical random access channel timings. If the first parameter is not configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the physical random access channel timing of the previous physical random access channel timing set. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity in each subsequent set of physical random access channel opportunities is first sorted in ascending order by the frequency domain resource index of the frequency division multiplexing physical random access channel opportunity, and then sorted in ascending order by the time domain resource index of the time division multiplexing physical random access channel opportunity.

[0353] Optionally, the first parameter is the msg1-RepetitionTimeOffsetROGroup parameter.

[0354] Optionally, the first parameter is configured by system message 1 and / or radio resource control information.

[0355] Optionally, for each frequency domain resource index of the physical random access channel timing for frequency division multiplexing, the first valid physical random access channel timing of the first physical random access channel timing set is the first valid physical random access channel timing under that frequency domain resource index.

[0356] Alternatively, for paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities.

[0357] Optionally, for unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing.

[0358] Optionally, for unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block within the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell within that physical random access channel time slot is a valid physical random access channel timing.

[0359] Optionally, the second parameter is the tdd-UL-DL-ConfigurationCommon parameter.

[0360] Optionally, the second parameter is configured by system message 1 and / or radio resource control information.

[0361] Optionally, the values ​​for Ngap are shown in Table 1.

[0362] Optionally, the physical random access channel timing does not include the physical random access channel timing in the subband full-duplex symbols.

[0363] Optionally, the physical random access channel timing does not include physical random access channel timing for physical random access channel time-domain adaptation.

[0364] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the effective physical random access channel timings in subband full-duplex symbols.

[0365] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the physical random access channel timings configured by the higher-layer parameter addl-RACH-Config-Adaptation.

[0366] Optionally, addl-RACH-Config-Adaptation is configured by System Message 1 and / or Radio Resource Control information.

[0367] Optionally, the association period refers to a period starting from frame 0 used to map the synchronization signal block index to the physical random access channel timing.

[0368] Optionally, the association period is the smallest integer value in the set determined by the physical random access channel configuration period in Table 2, and it is required that within one association period, the index of the actual transmitted synchronization signal block is mapped to the physical random access channel timing at least once.

[0369] Optionally, if, within an association period, after a number of integer cycles of mapping synchronization block indices to physical random access channel timings, there is still a set of physical random access channel timings or physical random access channel preambles that have not been mapped to at least one synchronization block index, then these physical random access channel timings or preambles will not be assigned any synchronization block index.

[0370] Optionally, the association mode period includes one or more association periods, and the mapping pattern between the physical random access channel timing and the synchronization signal block index is repeated at most once every 160 milliseconds within an association mode period.

[0371] Optionally, if there are still physical random access channel opportunities not associated with the synchronization signal block index after a certain number of associated periods, these opportunities will not be used for physical random access channel transmission.

[0372] Through the technical solution of this embodiment, the network device receives the random access preamble on the physical random access channel timing. The physical random access channel timing is determined by the terminal device in response to the satisfaction of the first condition. This clarifies the PRACH timing determination mechanism that supports the transmission of multiple physical random access channels with different transmit beams, thereby supporting the improvement of the physical random access channel transmission mechanism.

[0373] Seventh Embodiment Reference Figure 11 , Figure 11 This application provides a processing method according to the seventh embodiment, which includes steps S1 and S2. The seventh embodiment is a schematic diagram of the interaction process between a network device and a terminal device. Step S1: The terminal device determines the timing of physical random access to the channel in response to the first condition being met; Step S2: The network device receives the random access preamble on the physical random access channel timing, which is determined by the terminal device in response to the satisfaction of the first condition.

[0374] Optionally, the terminal device determines the timing of the physical random access channel in response to the satisfaction of the first condition.

[0375] Optionally, the terminal device sends a random access preamble when the physical random access channel is accessed.

[0376] Optionally, the network device receives the random access preamble during the physical random access channel.

[0377] Alternatively, network equipment may be base stations, etc.

[0378] Optionally, the terminal device determines the timing of the physical random access channel in response to the satisfaction of the first condition, including at least one of the following: In response to satisfying the first condition, the terminal device determines a number of physical random access channel opportunities from a set of physical random access channel opportunities for transmission of different transmit beams via physical random access channels. In response to satisfying the first condition, the terminal device determines a first number of physical random access channel opportunities from the set of physical random access channel opportunities for different transmit beams for transmission via physical random access channels for different transmit beams. In response to satisfying the first condition, the terminal device determines the number of physical random access channel opportunities for different transmission beams in the set of physical random access channel opportunities for different transmission beams.

[0379] Optionally, the first number is related to the different number of transmitted beams and / or the number of times the preamble of the same beam is repeated.

[0380] Optionally, the first number is equal to the product of the number of different transmitted beams and the number of times the preamble of the same beam is repeated.

[0381] Optionally, the physical random access channel timing is the effective physical random access channel timing for physical random access channel transmission of different transmit beams.

[0382] Optionally, different transmit beams correspond to different space filters.

[0383] Optionally, in response to satisfying the first condition, the terminal device determines a number of physical random access channel opportunities with different transmit beams in a set of physical random access channel opportunities for physical random access channel transmission with different transmit beams. Specifically, on the number of physical random access channel opportunities with different transmit beams in the set of physical random access channel opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0384] Optionally, in response to satisfying the first condition, the terminal device determines a first number of physical random access channel (PRAM) opportunities from the set of different transmit beam PRAM opportunities for PRAM transmission of different transmit beams. Specifically, on the first number of PRAM opportunities from the set of different transmit beam PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit random access preambles.

[0385] Optionally, in response to satisfying the first condition, the terminal device determines different numbers of physical random access channel (PRAM) opportunities from the set of different numbers of PRAM opportunities for different transmission beams for PRAM transmission of different transmission beams. Specifically, on the different numbers of PRAM opportunities from the set of different numbers of PRAM opportunities determined in response to satisfying the first condition, the terminal device uses different spatial filters to transmit the random access preamble.

[0386] Optionally, the physical random access channel timing is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset, and second offset.

[0387] Optionally, at least one of the following can be configured by system message 1 and / or radio resource control information: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel opportunities for frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset.

[0388] Optionally, the number of transmit beams, the number of synchronization signal blocks, the number of physical random access channel opportunities for frequency division multiplexing in a time instance, the number of preamble repetitions for the same beam, the first offset, and the second offset are positive integers.

[0389] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0390] Optionally, X is less than or equal to the number of repetitions of the preamble of the same beam.

[0391] Optionally, X is a positive integer.

[0392] Optionally, X is configured by system message 1 and / or radio resource control information.

[0393] Optionally, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the Xth valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets. Specifically, when X is 1, the different number of physical random access channel opportunities in the different number of transmit beams physical random access channel opportunity sets are the first valid physical random access channel opportunity in each physical random access channel opportunity set in the different number of transmit beams physical random access channel opportunity sets.

[0394] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0395] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one synchronization signal block index.

[0396] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index.

[0397] Optionally, the effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices.

[0398] Optionally, the number of synchronization signal block indices associated with the physical random access channel timing is configured by system message 1 and / or radio resource control information.

[0399] Optionally, if the number of synchronization block indices associated with a physical random access channel opportunity is 1, then the effective physical random access channel opportunities of different transmit beams are associated with the same synchronization block index; specifically, if the number of synchronization block indices associated with a physical random access channel opportunity is P, then the effective physical random access channel opportunities of different transmit beams are associated with the same P synchronization block indices.

[0400] Optionally, P is a positive integer.

[0401] Optionally, different numbers of physical random access channel timing sets lie within a time period.

[0402] Optionally, the number of valid physical random access channel opportunities of different transmit beams in a physical random access channel opportunity set lies within a time period.

[0403] Optionally, the number of repetitions of the preamble of the same beam in a set of physical random access channel opportunities falls within a time period.

[0404] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and each synchronization signal block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0405] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices.

[0406] Optionally, a physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set.

[0407] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0408] Optionally, if, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0409] Optionally, the set of physical random access channel opportunities within a time period satisfies at least one of the following: The first valid physical random access channel opportunity in the first set of physical random access channel opportunities is the first valid physical random access channel opportunity within the time period; After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the first consecutive valid physical random access channel opportunities in the time domain. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity of each subsequent set of physical random access channel opportunities is located after the first valid physical random access channel opportunity of the previous set of physical random access channel opportunities, and is offset by the second consecutive time slot in the time domain. If the first parameter is configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the first valid physical random access channel timing of the previous physical random access channel timing set, and is offset in the time domain by the first parameter consecutive valid physical random access channel timings. If the first parameter is not configured, then after the first physical random access channel timing set, the first valid physical random access channel timing of each subsequent physical random access channel timing set is located after the physical random access channel timing of the previous physical random access channel timing set. After the first set of physical random access channel opportunities, the first valid physical random access channel opportunity in each subsequent set of physical random access channel opportunities is first sorted in ascending order by the frequency domain resource index of the frequency division multiplexing physical random access channel opportunity, and then sorted in ascending order by the time domain resource index of the time division multiplexing physical random access channel opportunity.

[0410] Optionally, the first parameter is the msg1-RepetitionTimeOffsetROGroup parameter.

[0411] Optionally, the first parameter is configured by system message 1 and / or radio resource control information.

[0412] Optionally, for each frequency domain resource index of the physical random access channel timing for frequency division multiplexing, the first valid physical random access channel timing of the first physical random access channel timing set is the first valid physical random access channel timing under that frequency domain resource index.

[0413] Alternatively, for paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities.

[0414] Optionally, for unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing.

[0415] Optionally, for unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block within the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell within that physical random access channel time slot is a valid physical random access channel timing.

[0416] Optionally, the second parameter is the tdd-UL-DL-ConfigurationCommon parameter.

[0417] Optionally, the second parameter is configured by system message 1 and / or radio resource control information.

[0418] Optionally, the values ​​for Ngap are shown in Table 1.

[0419] Optionally, the physical random access channel timing does not include the physical random access channel timing in the subband full-duplex symbols.

[0420] Optionally, the physical random access channel timing does not include physical random access channel timing for physical random access channel time-domain adaptation.

[0421] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the effective physical random access channel timings in subband full-duplex symbols.

[0422] Optionally, the effective physical random access channel timings for physical random access channel transmissions for different transmit beams do not include the physical random access channel timings configured by the higher-layer parameter addl-RACH-Config-Adaptation.

[0423] Optionally, addl-RACH-Config-Adaptation is configured by System Message 1 and / or Radio Resource Control information.

[0424] Optionally, the association period refers to a period starting from frame 0 used to map the synchronization signal block index to the physical random access channel timing.

[0425] Optionally, the association period is the smallest integer value in the set determined by the physical random access channel configuration period in Table 2, and it is required that within one association period, the index of the actual transmitted synchronization signal block is mapped to the physical random access channel timing at least once.

[0426] Optionally, if, within an association period, after a number of integer cycles of mapping synchronization block indices to physical random access channel timings, there is still a set of physical random access channel timings or physical random access channel preambles that have not been mapped to at least one synchronization block index, then these physical random access channel timings or preambles will not be assigned any synchronization block index.

[0427] Optionally, the association mode period includes one or more association periods, and the mapping pattern between the physical random access channel timing and the synchronization signal block index is repeated at most once every 160 milliseconds within an association mode period.

[0428] Optionally, if there are still physical random access channel opportunities not associated with the synchronization signal block index after a certain number of associated periods, these opportunities will not be used for physical random access channel transmission.

[0429] Through the technical solution of this embodiment, the terminal device determines the timing of the physical random access channel in response to the fulfillment of the first condition, and the network device receives the random access preamble on the timing of the physical random access channel. This clarifies the PRACH timing determination mechanism that supports the transmission of multiple physical random access channels with different transmit beams, thereby supporting the improvement of the physical random access channel transmission mechanism.

[0430] Eighth embodiment Please see Figure 12 , Figure 12 Schematic diagram of the processing apparatus provided in the embodiments of this application Figure 1 The device can be mounted on or is the terminal device in the above method embodiments. Figure 12 The processing apparatus shown can be used to perform some or all of the functions described in the method embodiments above. For example... Figure 12 As shown, the processing device 160 includes: The determination module 1601 is used to determine the timing of the physical random access channel in response to the satisfaction of the first condition.

[0431] Optionally, the processing apparatus further includes at least one of the following: The physical random access channel timing is the physical random access channel timing used for transmission of different transmit beams. The timing of a physical random access channel is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings in a time instance of frequency division multiplexing, number of preamble repetitions for the same beam, first offset, and second offset.

[0432] Optionally, satisfying the first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0433] Optionally, the processing apparatus further includes at least one of the following: The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one of the same synchronization signal block indices; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices; Different sets of physical random access channel timings with different numbers of transmit beams lie within a time period; The number of different transmit beams in a set of physical random access channel opportunities lies within a time period; The number of times the preamble of the same beam is repeated in a set of physical random access channel opportunities. The number of valid physical random access channel opportunities within a time period.

[0434] Optionally, the processing apparatus further includes at least one of the following: A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices. A physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are repeated consecutively in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0435] Optionally, the processing apparatus further includes at least one of the following: For paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities; For unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing. For unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block in the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell is a valid physical random access channel timing within that physical random access channel time slot. Physical random access channel timing does not include physical random access channel timing in subband full-duplex symbols; Physical random access channel timing does not include physical random access channel timing used for physical random access channel time-domain adaptation; X is less than or equal to the number of times the preamble is repeated in the same beam; X is a positive integer.

[0436] The processing device provided in this application embodiment is similar in implementation principle and beneficial effect to the technical solution shown in the corresponding method embodiment above, and will not be described again here.

[0437] Ninth Embodiment Please see Figure 13 , Figure 3 Schematic diagram of the processing apparatus provided in the embodiments of this application Figure 2 The device can be mounted on or is the network device in the above method embodiments. Figure 13 The processing apparatus shown can be used to perform some or all of the functions described in the method embodiments above. For example... Figure 13 As shown, the device 170 includes: The receiving module 1701 is used to receive the random access preamble on the physical random access channel timing, which is determined by the terminal device in response to the satisfaction of a first condition.

[0438] Optionally, the processing apparatus further includes at least one of the following: The physical random access channel timing is the physical random access channel timing used for transmission of different transmit beams. The timing of a physical random access channel is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings in a time instance of frequency division multiplexing, number of preamble repetitions for the same beam, first offset, and second offset.

[0439] Optionally, the terminal device satisfies at least one of the following conditions: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

[0440] Optionally, the processing apparatus further includes at least one of the following: The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one of the same synchronization signal block indices; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices; Different sets of physical random access channel timings with different numbers of transmit beams lie within a time period; The number of different transmit beams in a set of physical random access channel opportunities lies within a time period; The number of times the preamble of the same beam is repeated in a set of physical random access channel opportunities. The number of valid physical random access channel opportunities within a time period.

[0441] Optionally, the processing apparatus further includes at least one of the following: A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices. A physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are repeated consecutively in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

[0442] Optionally, the processing apparatus further includes at least one of the following: For paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities; For unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing. For unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block in the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell is a valid physical random access channel timing within that physical random access channel time slot. Physical random access channel timing does not include physical random access channel timing in subband full-duplex symbols; Physical random access channel timing does not include physical random access channel timing used for physical random access channel time-domain adaptation; X is less than or equal to the number of times the preamble is repeated in the same beam; X is a positive integer.

[0443] The processing device provided in this application embodiment is similar in implementation principle and beneficial effect to the technical solution shown in the corresponding method embodiment above, and will not be described again here.

[0444] See Figure 14 , Figure 14 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Figure 14 As shown, the communication device 180 described in this embodiment can be a terminal device (or a component that can be used in a terminal device) or a network device (or a component that can be used in a network device) mentioned in the foregoing method embodiments. The communication device 180 can be used to implement the methods corresponding to the terminal device or network device described in the above method embodiments, as detailed in the descriptions in the above method embodiments.

[0445] The communication device 180 may include one or more processors 1801, which may also be referred to as processing units, and can perform certain control or processing functions. The processor 1801 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control the communication device, execute software programs, and process data from the software programs.

[0446] Optionally, the processor 1801 may also store instructions 1803 or data (e.g., intermediate data). Optionally, instructions 1803 may be executed by the processor 1801, causing the communication device 180 to perform the methods described in the above method embodiments corresponding to the terminal device or network device.

[0447] Optionally, the communication device 180 may include a circuit that can perform the functions of sending, receiving, or communicating in the foregoing method embodiments.

[0448] Optionally, the communication device 180 may include one or more memories 1802, which may store instructions 1804 that can be executed on the processor 1801 to cause the communication device 180 to perform the methods described in the above method embodiments.

[0449] Alternatively, the memory 1802 may also store data. The processor 1801 and the memory 1802 can be configured separately or integrated together.

[0450] Optionally, the communication device 180 may further include a transceiver 1805 and / or an antenna 1806. The processor 1801, which may be referred to as a processing unit, controls the communication device 180 (terminal device, core network device, or wireless access network device). The transceiver 1805, which may be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, is used to implement the transceiver functions of the communication device 180.

[0451] Optionally, if the communication device 180 is used to implement the operation corresponding to the terminal device in the above embodiments, for example, the transceiver 1805 may send a random access preamble; and the processor 1801 may determine the timing of the physical random access channel in response to the satisfaction of the first condition.

[0452] Optionally, the specific implementation process of the processor 1801 and transceiver 1805 can be found in the relevant descriptions of the above embodiments, and will not be repeated here.

[0453] Optionally, if the communication device 180 is used to implement the operation of the network device corresponding to the above embodiments, for example, the transceiver 1805 can receive the random access preamble.

[0454] Optionally, the specific implementation process of the processor 1801 and transceiver 1805 can be found in the relevant descriptions of the above embodiments, and will not be repeated here.

[0455] The processor 1801 and transceiver 1805 described in this application can be implemented on ICs (Integrated Circuits), analog integrated circuits, RFICs (Radio Frequency Integrated Circuits), mixed-signal integrated circuits, ASICs (Application Specific Integrated Circuits), PCBs (Printed Circuit Boards), electronic devices, etc. The processor 1801 and transceiver 1805 can also be manufactured using various integrated circuit process technologies, such as CMOS (Complementary Metal Oxide Semiconductor), NMOS (N Metal-Oxide-Semiconductor), PMOS (Positive Channel Metal Oxide Semiconductor), BJT (Bipolar Junction Transistor), Bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0456] In this application, the communication device can be a terminal device (such as a mobile phone) or a network device (such as a base station), depending on the context. Furthermore, the terminal device can be implemented in various forms. For example, the terminal devices described in this application can include mobile terminals such as mobile phones, tablets, laptops, PDAs, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminal devices such as digital TVs and desktop computers.

[0457] Although the communication devices described above are exemplified as terminal devices or network devices, the scope of the communication devices described in this application is not limited to the aforementioned terminal devices or network devices, and the structure of the communication devices may vary. Figure 14 There are limitations. Communication equipment can be a standalone device or part of a larger device.

[0458] This application also provides a communication system, including: a terminal device as described in any of the above embodiments; and a network device as described in any of the above embodiments.

[0459] This application also provides a communication device, including a memory and a processor. The memory stores a processing program, and when the processing program is executed by the processor, it implements the steps of the processing method in any of the above embodiments.

[0460] The communication equipment mentioned in this application may be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific meaning needs to be clarified according to the context.

[0461] This application also provides a computer-readable storage medium storing a processing program, which, when executed by a processor, implements the steps of the processing method in any of the above embodiments.

[0462] In the embodiments of the communication device and storage medium provided in this application, all the technical features of any of the above-described processing method embodiments may be included. The extended and explained contents of the specification are basically the same as the embodiments of the above methods, and will not be repeated here.

[0463] This application also provides a computer program product, which includes computer program code. When the computer program code is run on a computer, it causes the computer to perform the methods described in the various possible implementations above.

[0464] This application also provides a chip, including a memory and a processor. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a device with the chip installed performs the methods described in the various possible implementations above.

[0465] It is understood that the above scenarios are merely examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, as those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0466] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0467] The steps in the method of this application embodiment can be adjusted, combined, or deleted according to actual needs.

[0468] The units in the device of this application embodiment can be merged, divided, and deleted according to actual needs.

[0469] In this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions are generally described in detail only when they appear for the first time. When they appear again, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions that are not described in detail later can be referred to their previous relevant detailed descriptions.

[0470] In this application, the descriptions of the various embodiments have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0471] The technical features of the present application can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0472] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, controlled terminal device, or network device, etc.) to execute the methods of each embodiment of this application.

[0473] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, storage disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (SSD)).

[0474] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A processing method, characterized in that, Applied to terminal devices, including the following steps: S1: In response to the satisfaction of the first condition, determine the timing of the physical random access channel.

2. The method according to claim 1, characterized in that, It also includes at least one of the following: The physical random access channel timing is the effective physical random access channel timing used for physical random access channel transmission of different transmit beams; The timing of the physical random access channel is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings in frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset. The first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

3. The method according to claim 2, characterized in that, It also includes at least one of the following: The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one of the same synchronization signal block indices; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices; Different sets of physical random access channel timings with different numbers of transmit beams lie within a time period; The number of different transmit beams in a set of physical random access channel opportunities lies within a time period; The number of times the preamble of the same beam is repeated in a set of physical random access channel opportunities. The number of valid physical random access channel opportunities within a time period.

4. The method according to claim 3, characterized in that, It also includes at least one of the following: A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. A physical random access channel timing set includes a number of valid physical random access channel timings that are consecutive in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization signal block index, and at least two valid physical random access channel timings in the physical random access channel timing set are associated with different preamble indices. A physical random access channel timing set includes a number of valid physical random access channel timings of the same beam whose preambles are repeated consecutively in the time domain, use the same frequency domain resources, and are associated with the same at least one synchronization block index, and each synchronization block index is associated with the same preamble sequence index in the valid physical random access channel timings of the physical random access channel timing set. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of different transmit beams minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities. If, within a time period, after the first valid physical random access channel opportunity in a set of physical random access channel opportunities, the number of remaining valid physical random access channel opportunities is less than the number of preamble repetitions minus 1, then the physical random access channel opportunities in that set of physical random access channel opportunities are invalid physical random access channel opportunities.

5. The method according to claim 4, characterized in that, It also includes at least one of the following: For paired spectrum or supplemental uplink bands, all physical random access channel opportunities are valid physical random access channel opportunities; For unpaired spectrum, if a terminal device in a cell is not configured with a second parameter, and the physical random access channel timing of the cell is not earlier than the synchronization signal block in the same physical random access channel time slot, and there is at least an interval of Ngap symbols after the last synchronization signal block is received, then the physical random access channel timing of the cell in that physical random access channel time slot is a valid physical random access channel timing. For unpaired spectrum, if a terminal device in a cell is configured with a second parameter, and the physical random access channel timing of the cell is only located within the uplink symbol and no earlier than the synchronization signal block in the same physical random access channel time slot, and is at least Ngap symbols after the last downlink symbol and / or the last synchronization signal block, then the physical random access channel timing of the cell is a valid physical random access channel timing within that physical random access channel time slot. Physical random access channel timing does not include physical random access channel timing in subband full-duplex symbols; Physical random access channel timing does not include physical random access channel timing used for physical random access channel time-domain adaptation; X is less than or equal to the number of times the preamble is repeated in the same beam; X is a positive integer.

6. A processing method, characterized in that, Applied to network devices, including the following steps: S2: Receive the random access preamble on the physical random access channel timing, which is determined by the terminal device in response to the satisfaction of the first condition.

7. The method according to claim 6, characterized in that, It also includes at least one of the following: The physical random access channel timing is the physical random access channel timing used for transmission of different transmit beams. The timing of the physical random access channel is determined based on at least one of the following: different number of transmit beams, number of synchronization signal blocks, number of physical random access channel timings in frequency division multiplexing in a time instance, number of preamble repetitions for the same beam, first offset and second offset. The first condition includes at least one of the following: Physical random access channels used for transmission of different transmit beams use the same frequency domain resources. Physical random access channels used for transmission of different transmit beams utilize different frequency domain resources. Physical random access channel timings used for transmission of different transmit beams belong to the same set of physical random access channel timings. The physical random access channel timings used for transmission of different transmit beams belong to a set of different physical random access channel timings. The physical random access channel timing for transmission of physical random access channels for different transmit beams is the Xth valid physical random access channel timing in each physical random access channel timing set of different transmit beams. The physical random access channel timings used for transmission of different transmit beams are offset in the time domain by the first consecutive valid physical random access channel timings between two adjacent physical random access channel timing sets. The physical random access channel timings used for transmission of different transmit beams are offset by a second consecutive time slot in the time domain between two adjacent physical random access channel timing sets.

8. The method according to claim 7, characterized in that, It also includes at least one of the following: The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with at least one of the same synchronization signal block indices; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with the same preamble index; The effective physical random access channel timing for physical random access channel transmissions for different transmit beams is associated with different preamble indices; Different sets of physical random access channel timings with different numbers of transmit beams lie within a time period; The number of different transmit beams in a set of physical random access channel opportunities lies within a time period; The number of times the preamble of the same beam is repeated in a set of physical random access channel opportunities. The number of valid physical random access channel opportunities within a time period.

9. A communication device, characterized in that, include: A memory and a processor, wherein the memory stores a processing program, and the processing program, when executed by the processor, implements the processing method as described in any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a processing program, which, when executed by a processor, implements the processing method as described in any one of claims 1 to 8.

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