WO2023125346A1

WO2023125346A1 - Random access method and apparatus, chip, and module device

Info

Publication number: WO2023125346A1
Application number: PCT/CN2022/141720
Authority: WO
Inventors: 张萌
Original assignee: 展讯通信（上海）有限公司
Priority date: 2021-12-29
Filing date: 2022-12-24
Publication date: 2023-07-06
Also published as: CN116419419A

Abstract

Disclosed in the present application are a random access method and apparatus, a chip, and a module device. The method comprises: determining the number of retransmissions N of a random access message on the basis of a first parameter, N being an integer greater than 1; and repeatedly transmitting the random access message to a network device on the basis of the number of retransmissions N, wherein the first parameter is a number of retransmissions set, the number of retransmissions set comprises one or more numbers of retransmissions, and the number of retransmissions N is one number of transmissions in the number of retransmissions set; or the first parameter is a number of transmissions threshold, and the number of retransmissions N is less than or equal to the number of retransmissions threshold. On the basis of the method described in the present application, the number of repeated transmissions of a random access message can be flexibly determined.

Description

A random access method, device, chip and module equipment

technical field

The present invention relates to the communication field, in particular to a random access method, device, chip and module equipment.

Background technique

In a wireless communication system, a terminal device establishes a connection with a network device, and this process is generally called a random access (RA) process. The terminal device may send a random access message to the network device to perform random access. In consideration of coverage enhancement, some enhancements can be made to the transmission of random access messages. For example, coverage may be enhanced by repeatedly transmitting random access messages. However, there is currently no scheme for determining the number of repeated transmissions of the random access message. If the number of repeated transmissions of the random access message is set to a fixed value, the number of repeated transmissions of the random access message may be insufficient, or the number of repeated transmissions of the random access message may be too many, resulting in waste of random access resources. Therefore, how the terminal device flexibly determines the number of repeated transmissions of the random access message is an urgent problem to be solved at present.

Contents of the invention

The present application provides a random access method, device, chip and module equipment, the terminal equipment can flexibly determine the number of repeated transmissions of the random access message.

In the first aspect, the present application provides a random access method, which is applied to a terminal device, and the method includes:

Determine the number of retransmissions N of the random access message based on the first parameter, and N is an integer greater than 1; repeat the random access message to the network device based on the number of retransmissions N; where the first parameter is a set of retransmission times, retransmission The set of times includes one or more times of retransmissions, and the number of retransmissions N is a number of retransmissions in the set of times of retransmissions; or, the first parameter is the threshold of the number of retransmissions, and the number of retransmissions N is less than or equal to the threshold of retransmissions .

Based on the method described in the first aspect, the repeated transmission times of the random access message can be flexibly determined.

In a possible implementation, the first parameter is predefined by the protocol. Based on this possible implementation manner, the network device does not need to configure the first parameter for the terminal device, which is beneficial to saving transmission resources.

In a possible implementation, first configuration information from the network device may also be received, where the first configuration information is used to configure the first parameter. Based on this possible implementation manner, the first parameter is not fixed but can be changed, which can make the first parameter more flexible.

In a possible implementation, one or more downlink reference signals can also be measured to obtain the measurement results of one or more downlink reference signals; the target downlink can also be determined from the measurement results of one or more downlink reference signals The specific implementation manner of determining the number of retransmissions N of the random access message based on the target measurement result corresponding to the reference signal and based on the first parameter is: determining the number of retransmissions N of the random access message based on the target measurement result and the first parameter.

Based on this possible implementation manner, it is beneficial to save transmission resources or improve the success rate of random access.

In a possible implementation, the specific implementation manner of determining the retransmission times N of the random access message based on the target measurement result and the first parameter is: determining the target measurement result range from multiple measurement result ranges, the target measurement result range is the measurement result range where the target measurement result is located; determine the retransmission times N of the random access message based on the target measurement result range and the first parameter; where the retransmission times N is the retransmission number corresponding to the target measurement result range in the retransmission times set The number of retransmissions, or, the number of retransmissions N is the number of retransmissions corresponding to the target measurement result range among the retransmission times less than or equal to the retransmission times threshold. Based on this possible implementation, it is beneficial to accurately determine the number of retransmissions that is beneficial to saving transmission resources or improving the success rate of random access.

In one possible implementation, multiple measurement result ranges are predefined by the protocol. Based on this possible implementation manner, the network device does not need to be configured with multiple measurement result ranges, which is beneficial to saving transmission resources.

In a possible implementation, second configuration information from the network device may also be received, where the second configuration information is used to configure multiple measurement result ranges. Based on this possible implementation manner, the measurement result range is not fixed but can be changed, which can make the measurement result range more flexible.

In a possible implementation, the sending beams used for the N times of repeated transmission of random access messages are the same; the preambles in the N times of repeated transmission of random access messages are the same. In this possible implementation manner, since the preambles in the random access messages transmitted repeatedly for N times are the same, the network device can jointly decode the random access messages transmitted for N times to increase the gain.

In a possible implementation, multiple downlink reference signals correspond to the same random access opportunity RO resource; repeated transmission of N random access messages uses N different transmission beams; N different transmission beams correspond to N target downlink For reference signals, any two target downlink reference signals among the N target downlink reference signals do not correspond to the same RO resource. Based on this possible implementation manner, it is beneficial to avoid self-interference when the random access message is repeatedly transmitted.

In a possible implementation, the sending beams used for the N repeated transmissions of the random access message are different; in the N repeated transmissions of the random access message, the preamble in the random access message is the target preamble group. The preamble, the target preamble group is a preamble group corresponding to the number of retransmissions N among the plurality of preamble groups, and the target preamble group includes N preambles. Based on this possible implementation manner, it is beneficial to reduce the complexity of blind detection of random access messages by network equipment.

In a second aspect, the present application provides a random access method, which is applied to a network device. The method includes: receiving a random access message repeatedly transmitted by a terminal device, and the number of retransmissions of the random access message is N, where N is An integer greater than 1; wherein, the number of retransmissions N is a number of retransmissions in the set of retransmissions, and the set of retransmissions includes one or more retransmissions, or the number of retransmissions N is less than or equal to the threshold of retransmissions .

In a possible implementation, the first parameter is a set of retransmission times or a threshold of retransmission times; the first parameter is predefined by the protocol, or the first configuration information may also be sent to the terminal device, and the first configuration information uses To configure the first parameter.

In a possible implementation, second configuration information may also be sent to the terminal device, where the second configuration information is used to configure multiple measurement result ranges of the downlink reference signal, and the multiple measurement result ranges are used by the terminal device to determine the random access The number of retransmissions N of incoming messages.

In a possible implementation, the RO resources where the random access messages are repeatedly transmitted for N times correspond to the same downlink reference signal; the preambles in the random access messages for N repeated transmissions are the same.

In a possible implementation, multiple downlink reference signals correspond to the same random access opportunity RO resource; repeated transmission of N random access messages uses N different transmission beams; N different transmission beams correspond to N target downlink For reference signals, any two target downlink reference signals among the N target downlink reference signals do not correspond to the same RO resource.

In a possible implementation, the sending beams used for the N repeated transmissions of the random access message are different; in the N repeated transmissions of the random access message, the preamble in the random access message is the target preamble group. The preamble, the target preamble group is a preamble group corresponding to the number of retransmissions N among the plurality of preamble groups, and the target preamble group includes N preambles.

For the beneficial effects of the second aspect, reference may be made to the beneficial effects of the first aspect, which will not be repeated here.

In a third aspect, the present application provides a random access device, which includes a unit for performing the method in the above first aspect or any possible implementation thereof, or, the device includes a unit for performing the above first aspect A unit of a method in any of the two aspects or any possible implementation thereof.

In a fourth aspect, the present application provides a chip, the chip includes a processor and a communication interface, and the processor is configured to make the method in the above first aspect or any possible implementation of the chip, or, the processor The chip is configured to implement the method in the above-mentioned second aspect or any possible implementation manner of the chip.

In a fifth aspect, the present application provides a module device, which includes a communication module, a power supply module, a storage module, and a chip, wherein: the power supply module is used to provide power for the module device; the The storage module is used to store data and instructions; the communication module is used for internal communication of the module device, or for the module device to communicate with external devices; the chip is used to implement the above-mentioned first aspect or any one thereof A method in a possible implementation manner, or, the chip is configured to execute the method in the above second aspect or any possible implementation manner thereof.

In a sixth aspect, the embodiment of the present invention discloses a random access device, the random access device includes a memory and a processor, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to The program instruction is invoked to execute the method in the above first aspect or any possible implementation thereof, or execute the method in the above second aspect or any possible implementation thereof.

In a seventh aspect, the present application provides a computer-readable storage medium, in which computer-readable instructions are stored, and when the computer-readable instructions are run on a communication device, the communication device is made to execute the above-mentioned first aspect The method in any possible implementation manner thereof, or causing the communication device to execute the method in the above second aspect or any possible implementation manner thereof.

In an eighth aspect, the present application provides a computer program or a computer program product, including codes or instructions. When the codes or instructions are run on a computer, the computer executes the method in the first aspect or any possible implementation thereof. , or causing the computer to execute the method in the second aspect or any possible implementation thereof.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a corresponding relationship between SSB and RO resources provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of another correspondence relationship between SSB and RO resources provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a corresponding relationship between CSI-RS and RO resources provided by an embodiment of the present application;

FIG. 5 is a schematic flowchart of a random access method provided in an embodiment of the present application;

FIG. 6 is a schematic flowchart of a random access method provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a random access device provided in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another random access device provided by an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also Plural expressions are included unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in this application refers to and includes any and all possible combinations of one or more of the listed items.

It should be noted that the terms “first”, “second”, and “third” in the specification and claims of the present application and in the above drawings are used to distinguish similar objects, but not necessarily to describe specific objects. sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the term "comprising" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or server comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, Instead, other steps or elements not explicitly listed or inherent to the process, method, product or apparatus may be included.

In order to better understand the embodiment of the present application, the following first introduces the system architecture involved in the embodiment of the present application:

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: global system of mobile communication (global system of mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, broadband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) Communication System, Fifth Generation (5G) system or new radio (new radio, NR) and future communication systems, etc.

Fig. 1 is a schematic diagram of a communication system provided by an embodiment of the present application, and the solution in the present application is applicable to the communication system. The communication system may include a network device and at least one terminal device. FIG. 1 takes a communication system including a network device and three terminal devices as an example.

1. Terminal equipment

Terminal equipment includes equipment that provides voice and/or data connectivity to users. For example, terminal equipment is a device with wireless transceiver capabilities that can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed in On the water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.). The terminal can be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, or a wireless terminal in industrial control (industrial control) , vehicle terminal equipment, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, Wireless terminals in smart cities, wireless terminals in smart homes, wearable terminal devices, etc. The embodiments of the present application do not limit the application scenarios. A terminal may sometimes be referred to as terminal equipment, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, terminal equipment, wireless communication equipment, UE proxy or UE device, etc. Terminals can also be fixed or mobile. In the embodiment of the present application, the device used to realize the function of the terminal device may be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system or a combined device or component that can realize the function of the terminal device. Can be installed in terminal equipment.

2. Network equipment

The network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and a next-generation base station (next station) in the fifth generation (5th generation, 5G) mobile communication system. generation NodeB, gNB), the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc. The network device may also be a module or unit that performs some functions of the base station, for example, it may be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and also completes the function of the service data adaptation protocol (SDAP); the DU completes the functions of the base station The functions of the radio link control layer and the medium access control (medium access control, MAC) layer can also complete the functions of part or all of the physical layer. For specific descriptions of the above protocol layers, reference may be made to relevant technical specifications of the 3rd generation partnership project (3GPP). The network equipment may be a macro base station, a micro base station or an indoor station, or a relay node or a donor node. In the embodiment of the present application, the device for implementing the function of the network device may be the network device itself, or a device capable of supporting the network device to realize the function, such as a chip system or a combined device or component that can realize the function of the access network device, The device can be installed in network equipment. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.

In order to facilitate the understanding of the solutions provided by the embodiments of the present application, the correspondence between downlink reference signals and random access occasion (physical random access occasion, RO) resources is firstly introduced below:

The downlink reference signal may be a synchronization signal block (synchronous signal block, SSB) or a channel state information-reference signal (CSI-reference signal, CSI-RS). There is a corresponding relationship between SSB and RO resources. There is a corresponding relationship between CSI-RS resources and RO resources. Since there is a corresponding relationship between the CSI-RS resource and the RO resource, it can also be understood that there is a corresponding relationship between the CSI-RS and the RO resource, and the RO resource corresponding to the CSI-RS is the RO resource corresponding to the CSI-RS resource. The terminal device may measure one or more downlink reference signals, and select a target downlink reference signal or a resource of the target downlink reference signal based on the measurement result. The terminal device can send the random access message on the RO resource corresponding to the target downlink reference signal.

1. Correspondence between SSB and RO resources

One SSB can correspond to multiple RO resources. Multiple SSBs may correspond to the same RO resource, or different SSBs may correspond to different RO resources. Wherein, the corresponding relationship may be configured by the network side through high-layer signaling.

For example, as shown in FIG. 2 , one SSB corresponds to multiple RO resources, and multiple SSBs correspond to the same RO resource. 12 RO resources are shown in FIG. 2 . The numerical serial number in Fig. 2 is the serial number of SSB. Among them, SSB0 and SSB1 correspond to the same RO resource, SSB8 and SSB9 correspond to the same RO resource, SSB16 and SSB17 correspond to the same RO resource, SSB24 and SSB25 correspond to the same RO resource, and SSB32 and SSB33 correspond to the same RO resource.

For another example, as shown in FIG. 3 , one SSB corresponds to multiple RO resources in FIG. 3 , and different SSBs correspond to different RO resources. 12 RO resources are shown in FIG. 3 . The numerical serial number in Fig. 3 is the serial number of SSB. Wherein, SSB0, SSB1, SSB8, SSB9, SSB16 and SSB17 correspond to different RO resources.

2. Correspondence between CSI-RS resources and RO resources

One CSI-RS resource may correspond to multiple RO resources. Multiple CSI-RS resources may correspond to the same RO resource, or different CSI-RS resources may correspond to different RO resources. Wherein, the corresponding relationship may be configured by the network side through high-layer signaling.

For example, as shown in FIG. 4 , one CSI-RS resource in FIG. 4 corresponds to multiple RO resources, and different CSI-RS resources correspond to different RO resources. 20 RO resources are shown in FIG. 4 . The numerical serial numbers in FIG. 4 are serial numbers of RO resources. Wherein, CSI-RS resource 1 corresponds to RO resource 1 and RO resource 13 , and CSI-RS resource 2 corresponds to RO resource 2 and RO resource 14 . The correspondence between CSI-RS resources and RO resources can be configured through high-layer signaling. For example, the network device may configure the random access opportunity list corresponding to CSI-RS resource 1 and the random access opportunity list corresponding to CSI-RS resource 2 through high-layer signaling. The random access opportunity list corresponding to CSI-RS resource 1 includes RO resource 1 and RO resource 13 . The random access opportunity list corresponding to CSI-RS resource 1 includes RO resource 2 and RO resource 14 .

FIG. 4 takes different CSI-RS resources corresponding to different RO resources as an example. Multiple CSI-RS resources may also correspond to the same RO resource, for example, CSI-RS resource 1 corresponds to RO resource 1 and RO resource 13 , and CSI-RS resource 2 corresponds to RO resource 13 and RO resource 14 .

In order for a terminal device to flexibly determine the number of repeated transmissions of a random access message, the present application provides a random access method, device, chip and module device. The random access method, device, chip, and module device provided in the embodiments of the present application are further described in detail below.

Fig. 5 is a schematic flowchart of a random access method provided by an embodiment of the present application. As shown in FIG. 5 , the random access method includes steps 501 to 502 as follows. The execution body of the method shown in FIG. 5 may be a terminal device and a network device. Alternatively, the execution subject of the method shown in FIG. 5 may be a chip in the terminal device and a chip in the network device. FIG. 5 uses a terminal device and a network device as execution subjects of the method as examples for illustration.

501. The terminal device determines the retransmission times N of the random access message based on the first parameter, where N is an integer greater than 1.

Wherein, the first parameter is a set of retransmission times, the retransmission number set includes one or more random access message retransmission times, and the retransmission number N is a retransmission number in the retransmission number set; or, the first One parameter is the retransmission times threshold, and the retransmission times N is less than or equal to the retransmission times threshold.

That is to say, the number of retransmissions N may be a number of retransmissions selected by the terminal device from the set of retransmission times, or the number of retransmissions N may be a number of retransmissions selected by the terminal device from the number of retransmissions less than or equal to the threshold of retransmission times The number of retransmissions. The number of retransmissions indicates the number of times the random access message needs to be sent. For example, if the number of retransmissions of the random access message is N, it means that the terminal device needs to send N random access messages to the network device.

For example, the set of retransmission times may be {1, 2, 4, 8, 16}, {1, 2, 3, 4, 5} or {2, 4, 6, 8, 10} and so on. The retransmission times threshold may be 5, 6, 7, 8 or 10, etc.

Optionally, the retransmission times N may be a retransmission times randomly selected by the terminal device from the retransmission times set. Alternatively, the retransmission times N may be a retransmission times selected by the terminal device from a set of retransmission times based on a preset rule. For example, the preset rule may refer to the description in the embodiment corresponding to FIG. 6 .

Optionally, the retransmission times N may be a retransmission times randomly selected by the terminal device from retransmission times less than or equal to the retransmission times threshold. Alternatively, the retransmission times N may be a retransmission times randomly selected by the terminal device from retransmission times less than or equal to the retransmission times threshold based on a preset rule. For example, the preset rule may refer to the description in the embodiment corresponding to FIG. 6 . Alternatively, the retransmission times N is equal to the retransmission times threshold.

In another possible implementation, the network device may also send first configuration information to the terminal device, where the first configuration information is used to configure the first parameters; correspondingly, the terminal device may also receive the first configuration information from the network device . That is to say, the network device may configure the first parameter for the terminal device. Based on this possible implementation manner, the first parameter is not fixed but can be changed, which can make the first parameter more flexible. Wherein, the first configuration information may be carried by high layer signaling.

502. The terminal device repeatedly transmits the random access message to the network device based on the retransmission times N. Correspondingly, the network device may receive the random access message repeatedly transmitted by the terminal device.

In the embodiment of the present application, the terminal device may use the same or different sending beams to repeatedly transmit the random access message N times.

Before the terminal device sends the random access message, it may also measure one or more downlink reference signals to obtain the measurement results of the one or more downlink reference signals. For example, the downlink reference signal may be SSB or CSI-RS. If the terminal device uses the same sending beam to repeatedly transmit the random access message N times, the terminal device may determine a target downlink reference signal from the one or more downlink reference signals based on the measurement results of the one or more downlink reference signals. The sending beam used by the terminal device to repeatedly transmit the random access message for N times is the sending beam corresponding to the receiving beam of the target downlink reference signal. The sending beam corresponding to the receiving beam of the target downlink reference signal refers to: the sending beam whose beam sending direction is the same as the beam receiving direction of the receiving beam of the target downlink reference signal, or uses the same airspace transmission as the receiving beam of the target downlink reference signal The filter transmits the transmit beam.

For example, suppose N is 3, and the target downlink reference signal is SSB1. The terminal device can use the transmit beam corresponding to the receiving beam of SSB1 to transmit the random access message for the first time, the terminal device can use the transmit beam corresponding to the receive beam of SSB1 for the second transmission of the random access message, and the terminal device can use the transmit beam corresponding to the receive beam of SSB1 for the third transmission of the random access message. The incoming message can use the transmit beam corresponding to the receive beam of SSB1. Wherein, the random access message is transmitted on the RO resource corresponding to the target downlink reference signal. For example, the random access message transmitted for the first time can be transmitted on RO resource 1 corresponding to SSB1, the random access message transmitted for the second time can be transmitted on RO resource 2 corresponding to SSB1, and the random access message transmitted for the third time can be transmitted on It is transmitted on RO resource 3 corresponding to SSB1. The same is true when the downlink reference signal is the CSI-RS, and details are not described here.

If the terminal device uses different transmission beams to repeatedly transmit the random access message N times, the terminal device may determine N target downlink reference signals from the one or more downlink reference signals based on the measurement results of the one or more downlink reference signals. The sending beam used by the terminal device to repeatedly transmit the random access message for N times is the sending beam corresponding to the receiving beams of the N target downlink reference signals.

For example, assuming that N is 3, the N target downlink reference signals are respectively SSB1, SSB2 and SSB3. The terminal device can use the transmit beam corresponding to the receive beam of SSB1 for the first transmission of the random access message, the terminal device can use the transmit beam corresponding to the receive beam of SSB2 for the second transmission of the random access message, and the terminal device can use the transmit beam corresponding to the receive beam of SSB2 for the third transmission of the random access message. The incoming message can use the transmit beam corresponding to the receive beam of SSB3. Wherein, the random access message is transmitted on the RO resource corresponding to the target downlink reference signal. For example, the random access message transmitted for the first time may be transmitted on an RO resource corresponding to SSB1, the random access message transmitted for the second time may be transmitted on an RO resource corresponding to SSB2, and the random access message transmitted for the third time may be transmitted on an RO resource corresponding to SSB2. An RO resource corresponding to SSB3 is transmitted. The same is true when the downlink reference signal is the CSI-RS, and details are not described here.

In a possible implementation, the sending beams used by the terminal device to repeatedly transmit the random access message for N times are the same; the preambles in the random access message for N repeated transmissions are the same. In this possible implementation manner, since the preambles in the random access messages transmitted repeatedly for N times are the same, the network device can jointly decode the random access messages transmitted for N times to increase the gain.

In a possible implementation, the sending beams used by the terminal device to repeatedly transmit the random access message for N times are different, and the preambles in the random access message for N times of repeated transmission are the same or different.

In a possible implementation, multiple downlink reference signals correspond to the same random access opportunity RO resource; the terminal device repeatedly transmits random access messages N times using N different transmission beams; the N different transmission beams correspond to N target downlink reference signals, and any two target downlink reference signals in the N target downlink reference signals do not correspond to the same RO resource. Based on this possible implementation, it is beneficial to avoid self-interference when the terminal device repeatedly transmits random access messages.

For example, suppose N is 3, and the downlink reference signal is SSB. The corresponding relationship between SSB and RO resources is shown in FIG. 2 . The N target downlink reference signals selected by the terminal device may be SSB1, SSB9 and SSB17. SSB1, SSB9 and SSB17 correspond to different RO resources. For example, a terminal device cannot simultaneously select SSB0 and SSB1 as target downlink reference signals. Since the two SSBs correspond to the same RO resource, self-interference will occur when the terminal device repeatedly transmits the random access message.

In a possible implementation, the transmission beams used by the terminal device to repeatedly transmit the random access message for N times are different; in the N times of repeated transmission of the random access message, the preamble in the random access message is the target preamble group In the preamble, the target preamble group is a preamble group corresponding to the number of retransmissions N among the plurality of preamble groups, and the target preamble group includes N preamble groups. Based on this possible implementation manner, it is beneficial to reduce the complexity of blind detection of random access messages by network equipment.

In this possible implementation, the preamble is divided into multiple preamble groups, and the number of retransmissions corresponds to the number of retransmissions. The retransmission times corresponding to the preamble group are the same. In this possible implementation, the preambles in the random access messages transmitted repeatedly for N times are different.

The protocol can predefine a preamble division rule, and the terminal device and the network device can group multiple preambles based on the preamble division rule to obtain multiple preamble groups. Alternatively, the terminal device does not need to group the preambles, and the network device may configure multiple preamble groups for the terminal device through high-layer signaling after grouping the multiple preambles based on the preamble division rule.

In a possible implementation, the preambles in the preamble groups corresponding to different retransmission times may overlap. Optionally, the number of preamble packets corresponding to the retransmission times N may be Q/N. Wherein, Q is the total number of preambles. For example, assuming that there are 64 preambles in total, the number of retransmissions includes {16, 32} in total. The retransmission times of 16 corresponds to 4 preamble groups, each preamble group includes 16 preambles, and the preambles in each preamble group are different. The 4 preamble groups corresponding to 16 retransmission times are: {preamble 1~preamble 16}, {preamble 17~preamble 32}, {preamble 33~preamble 48}, {preamble 49~preamble Code 64}.

2 preamble groups corresponding to 32 retransmission times, each preamble group includes 32 preambles, and the preambles in each preamble group are different. The two preamble groups corresponding to the retransmission times 32 are respectively: {preamble 1-preamble 32}, {preamble 33-preamble 64}.

Therefore, there are 6 preamble packets in total. Assuming that the retransmission times N is 16, the terminal device can randomly select a preamble group from the 4 preamble groups corresponding to the retransmission times 16 to send the random access message. Assume that the selected preamble group is {preamble 1-preamble 16}. The random access message transmitted for the first time may include preamble 1, the random access message transmitted for the second time may include preamble 2, ..., and so on, the random access message transmitted for the sixteenth time may include Includes preamble 16.

In another possible implementation, preambles in preamble packets corresponding to different retransmission times do not overlap. This is more conducive to reducing the complexity of blind detection of random access messages by network equipment. For example, suppose there are 64 preambles in total, and the number of retransmissions includes {8, 16, 32} in total. The retransmission times of 8 corresponds to 2 preamble groups, and each preamble group includes 8 preambles. The two preamble groups corresponding to the retransmission times 8 are respectively: {preamble 1-preamble 8}, {preamble 9-preamble 16}.

The retransmission times of 16 corresponds to 1 preamble group, and the preamble group includes 16 preambles. The preamble group corresponding to the number of retransmission times 16 is {preamble 17-preamble 32}.

1 preamble packet corresponding to 32 times of retransmission, and the preamble packet includes 32 preambles. The preamble group corresponding to the retransmission times 32 is {preamble 32-preamble 64}.

The network device side usually determines whether the random access message is received by blindly detecting the preamble on the RO resource. Because the network device does not know the number of times the terminal device repeatedly transmits the random access message. The network device will perform blind detection on the random access message for various retransmission times, various combinations of RO resources, and various combinations of preambles. For example, assume that the number of retransmissions includes {2, 4, 6, 8}. The network device first performs blind detection on the random access message with the number of retransmissions being 2. Suppose there are 30 RO resources and 64 preambles. Since selecting 2 RO resources out of 30 RO resources has

combination, selecting 2 preambles from 64 preambles has

kind of combination. Therefore, when a network device performs blind detection for a repetition count of 2, at most

Blind test. If the network device does not detect blindly when the number of repetitions is 2, the network device continues to perform blind detection on the random access message for the next number of retransmissions. Therefore, if the preambles are not grouped so that there is a corresponding relationship between the preamble grouping and the number of retransmissions, then the blind detection complexity on the network device side will be relatively large. By grouping the preambles, the grouping of the preambles and the number of retransmissions have a corresponding relationship, which is beneficial to reducing the complexity of blind detection on the network device side. For example, assuming that the number of repetitions is 2 corresponding to 32 preamble packets, then when the network device performs blind detection for the number of repetitions of 2, it will perform at most

Secondary blind detection greatly reduces the complexity of blind detection on the network side.

It can be seen that, based on the method described in FIG. 5 , the number of repeated transmissions of the random access message is not fixed. The terminal device can flexibly select the repeated transmission times of the random access message from the retransmission times set, or the terminal device can flexibly select the repeated transmission times of the random access message from the retransmission times less than or equal to the retransmission times threshold. Therefore, based on the method described in FIG. 5 , the terminal device can flexibly determine the number of repeated transmissions of the random access message.

FIG. 6 is a schematic flowchart of a random access method provided by an embodiment of the present application. As shown in FIG. 6 , the random access method includes the following steps 601 to 604 . The execution body of the method shown in FIG. 6 may be a terminal device and a network device. Alternatively, the execution subject of the method shown in FIG. 6 may be a chip in the terminal device and a chip in the network device. FIG. 6 uses a terminal device and a network device as execution subjects of the method as an example for illustration.

601. The terminal device measures one or more downlink reference signals, and obtains a measurement result of the one or more downlink reference signals.

Wherein, the measurement result may be reference signal receiving power (reference signal receiving power, RSRP), or other reference signal measurement results, which are not limited in this embodiment of the present application.

602. The terminal device determines a target measurement result corresponding to the target downlink reference signal from the measurement results of one or more downlink reference signals.

Optionally, the target downlink reference signal may be a downlink reference signal with the largest measurement result among one or more downlink reference signals. When sending a random access message, the terminal device may send the random access message on the RO resource corresponding to the target downlink reference signal, and use the sending beam corresponding to the receiving beam of the target downlink reference signal to send the random access message.

603. The terminal device determines the retransmission times N of the random access message based on the target measurement result and the first parameter, where N is an integer greater than 1.

For example, when the target measurement result is RSRP, a larger target measurement result indicates a better signal strength of the target downlink reference signal. The more reliable the terminal device is in sending the random access message based on the sending beam corresponding to the receiving beam of the target downlink reference signal. Therefore, if the value of the target measurement result is larger, a smaller number of retransmissions may be selected to transmit the random access message, which is beneficial to saving transmission resources. If the value of the target measurement result is smaller, a larger number of retransmissions may be selected to transmit the random access message, which is beneficial to improving the success rate of the random access.

It can be seen that determining the retransmission times N of the random access message based on the target measurement result corresponding to the target downlink reference signal and the first parameter is beneficial for the terminal device to save transmission resources or improve the success rate of the random access.

In a possible implementation, the specific implementation manner in which the terminal device determines the number of retransmissions N of the random access message based on the target measurement result and the first parameter is: the terminal device determines the target measurement result range from multiple measurement result ranges, the The target measurement result range is the measurement result range where the target measurement result is located; the terminal device determines the retransmission times N of the random access message based on the target measurement result range and the first parameter; where the retransmission times N is the target in the retransmission times set The retransmission times corresponding to the measurement result range, or, the retransmission times N is the retransmission times corresponding to the target measurement result range among the retransmission times less than or equal to the retransmission times threshold.

Wherein, the measurement result range and the number of retransmissions have a corresponding relationship. The optional RSRP range is inversely proportional to the number of retransmissions. The larger the RSRP range, the smaller the number of retransmissions. For example, assume that the set of retransmission times includes {1, 2, 4, 8, 16}. The corresponding relationship between the measurement result range of the terminal device and the number of retransmissions may be shown in Table 1. Assuming that the range of the target measurement result is RSRP range 1, the number N of retransmissions determined by the terminal device is 1. Assuming that the range of the target measurement result is RSRP range 2, the number N of retransmissions determined by the terminal device is 2. Assuming that the range of the target measurement result is RSRP range 3, the number N of retransmissions determined by the terminal device is 4. Assuming that the range of the target measurement result is RSRP range 4, the number N of retransmissions determined by the terminal device is 8. Assuming that the range of the target measurement result is RSRP range 5, the number N of retransmissions determined by the terminal device is 16.

Table 1

RSRPRSRP	重传次数Number of retransmissions

RSRP范围1RSRP range 1	11
RSRP范围2 RSRP Range 2	22
RSRP范围3 RSRP range 3	44
RSRP范围4 RSRP Range 4	88
RSRP范围5 RSRP Range 5	1616

For another example, assume that the retransmission times threshold is 5. The corresponding relationship between the measurement result range of the terminal device and the number of retransmissions may be shown in Table 2. Assuming that the range of the target measurement result is RSRP range 1, the number N of retransmissions determined by the terminal device is 1. Assuming that the range of the target measurement result is RSRP range 2, the number N of retransmissions determined by the terminal device is 2. Assuming that the range of the target measurement result is RSRP range 3, the number N of retransmissions determined by the terminal device is 3. Assuming that the range of the target measurement result is RSRP range 4, the number N of retransmissions determined by the terminal device is 4. Assuming that the range of the target measurement result is RSRP range 5, the number N of retransmissions determined by the terminal device is 5.

Table 2

RSRPRSRP	重传次数Number of retransmissions

RSRP范围1RSRP range 1	11
RSRP范围2 RSRP Range 2	22
RSRP范围3 RSRP range 3	33
RSRP范围4 RSRP Range 4	44
RSRP范围5 RSRP Range 5	55

In a possible implementation, the foregoing multiple measurement result ranges are predefined by a protocol. Based on this possible implementation manner, the network device does not need to configure multiple measurement result ranges for the terminal device, which is beneficial to saving transmission resources.

In another possible implementation, the network device sends second configuration information to the terminal device, and the second configuration information is used to configure the foregoing multiple measurement result ranges; correspondingly, the terminal device may receive the second configuration information from the network device. Based on this possible implementation manner, the measurement result range is not fixed but can be changed, which can make the measurement result range more flexible.

604. The terminal device repeatedly transmits the random access message to the network device based on the retransmission times N.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of a random access device provided by an embodiment of the present invention. The random access device may be a terminal device or a device (such as a chip) having a terminal device function. Specifically, as shown in FIG. 7, the random access device 700 may include:

The determination unit 701 is configured to determine the number of retransmissions N of the random access message based on the first parameter, and N is an integer greater than 1; the communication unit 702 is used to repeatedly transmit the random access message to the network device based on the number of retransmissions N; wherein , the first parameter is a set of retransmission times, the set of retransmission times includes one or more retransmission times, and the number of retransmissions N is a retransmission number in the retransmission number set; or, the first parameter is the threshold of retransmission times , the retransmission times N is less than or equal to the retransmission times threshold.

In a possible implementation, the first parameter is predefined by the protocol; or, the communication unit 702 is further configured to receive first configuration information from the network device, where the first configuration information is used to configure the first parameter.

In a possible implementation, the random access device 700 may further include a measuring unit, configured to measure one or more downlink reference signals, and obtain measurement results of one or more downlink reference signals; the determining unit 701 also uses Determine the target measurement result corresponding to the target downlink reference signal from the measurement results of one or more downlink reference signals; the method for determining the number N of retransmissions of the random access message based on the first parameter is specifically: based on the target measurement result and the first parameter determine the number N of retransmissions of the random access message.

In a possible implementation, the manner in which the determining unit 701 determines the retransmission times N of the random access message based on the target measurement result and the first parameter is specifically: determining the target measurement result range from multiple measurement result ranges, the target measurement The result range is the measurement result range where the target measurement result is located; the number of retransmissions N of the random access message is determined based on the target measurement result range and the first parameter; wherein, the number of retransmissions N corresponds to the target measurement result range in the retransmission times set The number of retransmissions, or, the number of retransmissions N is the number of retransmissions corresponding to the range of the target measurement result among the number of retransmissions less than or equal to the threshold of the number of retransmissions.

In a possible implementation, the multiple measurement result ranges are predefined by the protocol; or, the communication unit 702 is further configured to receive second configuration information from the network device, where the second configuration information is used to configure the multiple measurement results scope.

In a possible implementation, the sending beams used by the random access device to repeatedly transmit the random access messages for N times are the same; the preambles in the random access messages for the N repeated transmissions are the same.

In a possible implementation, multiple downlink reference signals correspond to the same random access opportunity RO resource; the random access device repeatedly transmits random access messages N times using N different transmission beams; N different transmission beams correspond to There are N target downlink reference signals, and any two target downlink reference signals in the N target downlink reference signals do not correspond to the same RO resource.

In a possible implementation, the sending beams used by the random access device to repeatedly transmit the random access message for N times are different; in the N times of repeated transmission of the random access message, the preamble in the random access message is the target preamble The preamble in the code group, the target preamble group is the preamble group corresponding to the retransmission times N among the multiple preamble groups, and the target preamble group includes N preambles.

The embodiment of the present invention also provides a random access device, which may be a network device or a device (such as a chip) having a network device function. Specifically, the random access device may include:

The communication unit is configured to receive a random access message repeatedly transmitted by the terminal device, the number of retransmissions of the random access message is N, and N is an integer greater than 1; wherein, the number of retransmissions N is a retransmission in the set of retransmission times The retransmission times set includes one or more retransmission times, or the retransmission times N is less than or equal to the retransmission times threshold.

In a possible implementation, the first parameter is a retransmission times set or a retransmission times threshold;

The first parameter is predefined by the protocol, or the communication unit is further configured to send first configuration information to the terminal device, where the first configuration information is used to configure the first parameter.

In a possible implementation, the communication unit is further configured to send second configuration information to the terminal device, where the second configuration information is used to configure multiple measurement result ranges of the downlink reference signal, and the multiple measurement result ranges are used for the terminal device The device determines the number N of retransmissions of the random access message.

The embodiment of the present application also provides a chip, which can execute the relevant steps of the terminal device in the foregoing method embodiments. The chip includes a processor and a communication interface, and the processor is configured to cause the chip to perform the following operations: determine the number of retransmissions N of the random access message based on the first parameter, where N is an integer greater than 1; based on the number of retransmissions N Repeatedly transmit the random access message to the network device; wherein, the first parameter is a set of retransmission times, the set of retransmission times includes one or more retransmission times, and the number of retransmissions N is a retransmission number in the retransmission number set ; Or, the first parameter is the threshold of retransmission times, and the number of retransmissions N is less than or equal to the threshold of retransmission times.

In a possible implementation, the first parameter is predefined by the protocol; or,

The processor is further configured to cause the chip to perform the following operations: receive first configuration information from the network device, where the first configuration information is used to configure the first parameter.

In a possible implementation, the processor is further configured to cause the chip to perform the following operations: measure one or more downlink reference signals to obtain measurement results of one or more downlink reference signals; Determining the target measurement result corresponding to the target downlink reference signal from the measurement results of the downlink reference signal; determining the retransmission times N of the random access message based on the first parameter, including: determining the retransmission of the random access message based on the target measurement result and the first parameter Number of passes N.

In a possible implementation, determining the retransmission times N of the random access message based on the target measurement result and the first parameter includes: determining the target measurement result range from multiple measurement result ranges, where the target measurement result range is the target measurement result The measurement result range where it is located; determine the retransmission times N of the random access message based on the target measurement result range and the first parameter; where the retransmission times N is the retransmission times corresponding to the target measurement result range in the retransmission times set, or , the number of retransmissions N is the number of retransmissions corresponding to the range of the target measurement result among the number of retransmissions less than or equal to the threshold of the number of retransmissions.

In a possible implementation, the multiple measurement result ranges are predefined by the protocol; or, the processor is configured to make the chip perform the following operations: receive second configuration information from the network device, and use the second configuration information to for configuring multiple measurement result ranges.

In a possible implementation, the sending beams used for the N times of repeated transmission of random access messages are the same; the preambles in the N times of repeated transmission of random access messages are the same.

In a possible implementation manner, the above-mentioned chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the aforementioned at least one first memory and the aforementioned at least one processor are interconnected Instructions are stored in the memory; the aforementioned at least one second memory and the aforementioned at least one processor are interconnected through lines, and the aforementioned second memory stores data that needs to be stored in the aforementioned method embodiments.

For each device or product applied to or integrated in the chip, each module contained therein may be implemented by means of hardware such as circuits, or at least some of the modules may be implemented by means of software programs, which run on the internal integrated components of the chip. The processor and the remaining (if any) modules can be realized by hardware such as circuits.

The embodiment of the present application also provides a chip, which can execute the relevant steps of the network device in the foregoing method embodiments. The chip includes a processor and a communication interface, the processor is configured to cause the chip to perform the following operations:

Receiving the random access message repeatedly transmitted by the terminal device, the number of retransmissions of the random access message is N, and N is an integer greater than 1; wherein, the number of retransmissions N is a number of retransmissions in the retransmission times set, and the retransmission The set of times includes one or more times of retransmission, or the number of times of retransmission N is less than or equal to the threshold of times of retransmission.

The first parameter is pre-defined by the protocol, and the processor is configured to make the chip perform the following operations: send first configuration information to the terminal device, where the first configuration information is used to configure the first parameter.

In a possible implementation, the processor is configured to cause the chip to perform the following operations: send second configuration information to the terminal device, where the second configuration information is used to configure multiple measurement result ranges of the downlink reference signal, and the multiple The measurement result range is used for the terminal device to determine the retransmission times N of the random access message.

In a possible implementation manner, the aforementioned chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the aforementioned at least one first memory and the aforementioned at least one processor are interconnected through a wire, and the aforementioned first Instructions are stored in the memory; the aforementioned at least one second memory and the aforementioned at least one processor are interconnected through lines, and the aforementioned second memory stores data that needs to be stored in the aforementioned method embodiments.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of a random access apparatus provided by an embodiment of the present invention. The random access device may be a terminal device or a network device. The random access device 800 may include a memory 801 and a processor 802 . Optionally, a communication interface 803 is also included. The memory 801, the processor 802 and the communication interface 803 are connected by one or more communication buses. Wherein, the communication interface 803 is controlled by the processor 802 for sending and receiving information.

The memory 801 may include read-only memory and random-access memory, and provides instructions and data to the processor 802 . A portion of memory 801 may also include non-volatile random access memory.

The communication interface 803 is used to receive or send data.

The processor 802 can be a central processing unit (Central Processing Unit, CPU), and the processor 802 can also be other general processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC) ), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, and optionally, the processor 802 may also be any conventional processor. in:

The memory 801 is used for storing program instructions.

The processor 802 is configured to invoke program instructions stored in the memory 801 .

The processor 802 invokes the program instructions stored in the memory 801 to make the random access apparatus 800 execute the method executed by the terminal device or the network device in the foregoing method embodiments.

As shown in FIG. 9 , FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application. The module device 900 can perform relevant steps of the terminal device or network device in the foregoing method embodiments, and the module device 900 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip 904 .

Among them, the power supply module 902 is used to provide electric energy for the module equipment; the storage module 903 is used to store data and instructions; the communication module 901 is used for internal communication of the module equipment, or for communication between the module equipment and external equipment ; The chip 904 is used to execute the method executed by the terminal device or the network device in the above method embodiment.

It should be noted that for the content not mentioned in the embodiment corresponding to FIG. 8 and FIG. 9 and the specific implementation manner of each step, refer to the embodiment shown in FIG. 5 and the foregoing content, and details are not repeated here.

The embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instruction is run on a processor, the method flow of the above-mentioned method embodiment is realized.

The embodiment of the present application further provides a computer program product. When the computer program product is run on a processor, the method flow of the above method embodiment is realized.

Regarding each device described in the above embodiments, each module/unit contained in the product may be a software module/unit, or a hardware module/unit, or may be partly a software module/unit and partly a hardware module/unit. . For example, for each device applied to or integrated in a chip, each module/unit contained in the product may be realized by hardware such as a circuit, or at least part of the modules/units may be realized by a software program, and the software program runs The processor is integrated inside the chip, and the remaining (if any) modules/units can be realized by hardware such as circuits; Realized by means of hardware such as circuits, different modules/units can be located in the same part of the chip module (such as chips, circuit modules, etc.) or in different components, or at least part of the modules/units can be implemented in the form of software programs, the software program Running on the integrated processor inside the chip module, the remaining (if any) modules/units can be realized by hardware such as circuits; It is implemented by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components in the terminal, or at least some modules/units can be implemented by software programs. The program runs on the processor integrated in the terminal, and the remaining (if any) modules/units can be implemented by means of hardware such as circuits.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because of this application, certain operations may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by this application.

The descriptions of the various embodiments provided in this application can refer to each other, and the descriptions of each embodiment have their own emphases. For the parts that are not described in detail in a certain embodiment, you can refer to the relevant descriptions of other embodiments. For the convenience and brevity of description, for example, regarding the functions and operations of the various devices and devices provided in the embodiments of the present application, reference may be made to the relevant descriptions of the method embodiments of the present application. May be cross-referenced, combined or cited.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present application. scope.

Claims

A random access method, characterized in that it is applied to a terminal device, the method comprising:

Determine the retransmission times N of the random access message based on the first parameter, where N is an integer greater than 1;

Repeatedly transmitting the random access message to the network device based on the retransmission times N;

Wherein, the first parameter is a set of retransmission times, the set of retransmission times includes one or more retransmission times, and the number of retransmissions N is a retransmission number in the set of retransmission times; or , the first parameter is a retransmission times threshold, and the retransmission times N is less than or equal to the retransmission times threshold.
The method according to claim 1, characterized in that,

The first parameter is predefined by the protocol; or,

The method also includes:

Receive first configuration information from a network device, where the first configuration information is used to configure the first parameter.
The method according to claim 1 or 2, characterized in that the method further comprises:

Performing measurements on one or more downlink reference signals to obtain measurement results of one or more downlink reference signals;

determining a target measurement result corresponding to the target downlink reference signal from the measurement results of the one or more downlink reference signals;

The determining the number N of retransmissions of the random access message based on the first parameter includes:

Determine the number N of retransmissions of the random access message based on the target measurement result and the first parameter.
The method according to claim 3, wherein the determining the retransmission times N of the random access message based on the target measurement result and the first parameter comprises:

determining a target measurement result range from a plurality of measurement result ranges, the target measurement result range being a measurement result range in which the target measurement result is located;

determining the number N of retransmissions of a random access message based on the target measurement result range and the first parameter;

Wherein, the number of retransmissions N is the number of retransmissions corresponding to the range of the target measurement result in the set of retransmission times, or the number of retransmissions N is the number of retransmissions that is less than or equal to the threshold of the number of retransmissions The number of retransmissions corresponding to the target measurement range described in .
The method according to claim 4, wherein the ranges of the multiple measurement results are predefined by the protocol; or,

The method also includes:

Receive second configuration information from the network device, where the second configuration information is used to configure the multiple measurement result ranges.
The method according to any one of claims 1 to 5, characterized in that the sending beams used for the N times of repeated transmission of the random access message are the same; the preambles in the N times of repeated transmission of the random access message are the same.
The method according to any one of claims 1 to 5, wherein multiple downlink reference signals correspond to the same random access occasion RO resource; repeated transmission of the random access message N times uses N different transmission Beam: the N different transmission beams correspond to N target downlink reference signals, and any two target downlink reference signals in the N target downlink reference signals do not correspond to the same RO resource.
The method according to any one of claims 1 to 5, characterized in that the sending beams used for repeated transmission of the random access message N times are different;

In the N repeated transmissions of the random access message, the preamble in the random access message is a preamble in a target preamble group, and the target preamble group is a plurality of preamble groups that are identical to the The preamble packet corresponding to the number of retransmissions N, the target preamble packet includes N preambles.
A random access method, characterized in that it is applied to network equipment, the method comprising:

Receiving a random access message repeatedly transmitted by the terminal device, where the number of retransmissions of the random access message is N, and the N is an integer greater than 1;

Wherein, the retransmission times N is a retransmission times in a retransmission times set, and the retransmission times set includes one or more retransmission times, or, the retransmission times N is less than or equal to the retransmission times threshold.
The method according to claim 9, wherein the first parameter is the retransmission times set or the retransmission times threshold;

The first parameter is predefined by the protocol, or,

The method also includes:

Sending first configuration information to the terminal device, where the first configuration information is used to configure the first parameter.
The method according to claim 9 or 10, characterized in that the method further comprises:

sending second configuration information to the terminal device, where the second configuration information is used to configure multiple measurement result ranges of downlink reference signals, and the multiple measurement result ranges are used by the terminal device to determine the random access message The number of retransmissions N.
The method according to any one of claims 9 to 11, wherein the RO resource where the random access message is repeatedly transmitted N times corresponds to the same downlink reference signal; The preamble is the same.
The method according to any one of claims 9-11, characterized in that, multiple downlink reference signals correspond to the same random access occasion RO resource; repeated transmission of the random access message N times uses N different transmission Beam: the N different transmission beams correspond to N target downlink reference signals, and any two target downlink reference signals in the N target downlink reference signals do not correspond to the same RO resource.
The method according to any one of claims 9-11, characterized in that the sending beams used for the repeated transmission of the random access message N times are different;

In the N repeated transmissions of the random access message, the preamble in the random access message is a preamble in a target preamble group, and the target preamble group is a plurality of preamble groups that are identical to the The preamble packet corresponding to the number of retransmissions N, the target preamble packet includes N preambles.
A random access device, characterized in that the device includes:

A determining unit, configured to determine the number N of retransmissions of the random access message based on the first parameter, where N is an integer greater than 1;

A communication unit, configured to repeatedly transmit the random access message to the network device based on the retransmission times N;

Wherein, the first parameter is a set of retransmission times, the set of retransmission times includes one or more retransmission times, and the number of retransmissions N is a retransmission number in the set of retransmission times; or , the first parameter is a retransmission times threshold, and the retransmission times N is less than or equal to the retransmission times threshold.
A random access device, characterized in that the device includes:

The communication unit is configured to receive a random access message repeatedly transmitted by the terminal device, where the number of retransmissions of the random access message is N, and the N is an integer greater than 1;

Wherein, the retransmission times N is a retransmission times in a retransmission times set, and the retransmission times set includes one or more retransmission times, or, the retransmission times N is less than or equal to the retransmission times threshold.
A chip, characterized in that it includes a processor and a communication interface, the processor is configured to make the chip execute the method according to any one of claims 1-8, or the processor is configured It is used to make the chip execute the method according to any one of claims 9-14.
A module device, characterized in that the module device includes a communication module, a power supply module, a storage module, and a chip, wherein:

The power supply module is used to provide electric energy for the module equipment;

The storage module is used to store data and instructions;

The communication module is used for internal communication of the module equipment, or for the communication between the module equipment and external equipment;

The chip is used to execute the method according to any one of claims 1-8, or the chip is used to execute the method according to any one of claims 9-14.
A random access device, characterized in that it includes a memory and a processor, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to invoke the program instructions, so that the The random access device performs the method according to any one of claims 1-8, or causes the random access device to perform the method according to any one of claims 9-14.
A computer-readable storage medium, characterized in that computer-readable instructions are stored in the computer-readable medium, and when the computer-readable instructions are run on a communication device, the communication device is made to execute claims 1-8 The method described in any one of claims 9-14, or causing the communication device to execute the method described in any one of claims 9-14.
A computer program product, characterized in that it includes codes or instructions, and when the codes or instructions are run on a computer, the computer is made to execute the method according to any one of claims 1 to 8, or, so that The computer executes the method according to any one of claims 9-14.