WO2023098874A1

WO2023098874A1 - Random access method and related device

Info

Publication number: WO2023098874A1
Application number: PCT/CN2022/136196
Authority: WO
Inventors: 雷珍珠
Original assignee: 展讯半导体(南京)有限公司
Priority date: 2021-12-02
Filing date: 2022-12-02
Publication date: 2023-06-08
Also published as: CN116234051A

Abstract

Embodiments of the present application relate to the technical field of communications, and provide a random access method and a related device. The method comprises: receiving first carrier configuration information and second carrier configuration information sent by a network side device; sending a random access request message Msg1 to the network side device; if the terminal device is a first-type terminal device, receiving, on the basis of the first carrier configuration information, a random access response message Msg2 sent by the network side device; and if the terminal device is a second-type terminal device, receiving, on the basis of the second carrier configuration information, the Msg2 sent by the network side device. By means of the method provided by the embodiments of the present application, a terminal device can indicate the type of the terminal to a network, and a terminal device that does not have the GNSS capability can determine a starting position of a random access response window, thereby realizing effective random access.

Description

Random access method and related equipment

This application claims the priority of the Chinese patent application with the application number 202111457155.4 and the application title "random access method and related equipment" filed with the China Patent Office on December 02, 2021, the entire contents of which are incorporated by reference in this application .

technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a random access method and related equipment.

Background technique

In non-terrestrial networks (Non-Terrestrial Networks, NTN), for terminal devices with Global Navigation Satellite System (Global Navigation Satellite System, GNSS) capabilities, the distance between the terminal device and the satellite can be determined according to ephemeris information and GNSS capabilities. The round-trip propagation delay, and then determine the round-trip propagation time between the terminal device and the base station according to the public timing advance (Timing advance, TA) indicated by the network and the effective delay of the media access control layer control information element (MAC Control Element, MAC CE). delay. Finally, the terminal device determines the initial position of the random access response window (RAR window) according to the determined round-trip propagation delay between the terminal device and the base station, and then monitors the physical downlink control channel (Physical Downlink) within the random access response window. Control Channel, PDCCH). However, for terminal devices without GNSS capabilities, a method is urgently needed to determine the initial position of the random access response window and the size of the random access response window.

Contents of the invention

The embodiment of this application provides a random access method and related equipment to provide a random access method that allows terminal devices without GNSS capabilities to determine the initial position of the random access response window, thereby avoiding The problem that terminal devices without GNSS capabilities cannot effectively perform random access.

In the first aspect, the embodiment of the present application provides a random access method, which is applied to a terminal device. The terminal device is a first-type terminal device or a second-type terminal device. The first-type terminal device does not have GNSS capability. Type 2 terminal equipment has GNSS capability, the method includes:

receiving the first carrier configuration information and the second carrier configuration information sent by the network side device;

Send a random access request message Msg1 to the network side device;

If the terminal device is the first type of terminal device, receiving the random access response message Msg2 sent by the network side device based on the first carrier configuration information;

If the terminal device is a second type of terminal device, receiving Msg2 sent by the network side device based on the second carrier configuration information;

Wherein, the first carrier configuration information is used to indicate the first offset information and/or first response window information corresponding to the first type of terminal equipment; the second carrier configuration information is used to indicate the first offset information corresponding to the second type of terminal equipment. Two response window information.

In the embodiment of the present application, the terminal device without GNSS capability performs random access based on the carrier information configured by the network, so that the terminal device without GNSS capability can determine the initial position of the random access response window, thereby avoiding unnecessary The problem that terminal devices with GNSS capabilities cannot effectively perform random access.

In order to effectively receive Msg2, in one possible implementation manner, the terminal device is a first type terminal device,

The first carrier configuration information is used to indicate the first offset information and/or the first response window information corresponding to the first type of terminal device specifically includes:

The first carrier configuration information is used to indicate first offset information and first response window information corresponding to the first type of terminal equipment;

Receiving Msg2 sent by the network side device based on the first carrier configuration information includes:

Determine the first offset value and the duration value of the first response window based on the first carrier configuration information, determine the first starting position based on the first offset value, and start from the first starting position in the duration of the first response window The Msg2 sent by the network side device is received within the range; wherein, the first starting position is used to represent the starting position of the first response window.

In order to improve configuration efficiency, one of the possible implementations also includes:

The first carrier configuration information includes first carrier member set information, first offset information corresponding to the first carrier member set, and first response window information corresponding to the first carrier member set, and the first carrier member set information includes a or multiple carrier member indexes; the second carrier configuration information includes second carrier member set information, and the second carrier member set information includes one or more carrier member indexes.

In order to reduce the signaling overhead of the network, in one of the possible implementations,

The first response window information includes the duration value of the unique first response window corresponding to the first carrier member set; or,

The first response window information includes a duration value of the first response window corresponding to each carrier component in the first carrier component set.

The first offset information includes a unique first offset value corresponding to the first carrier member set; or,

The first offset information includes a unique first offset differential value corresponding to the first carrier component set; wherein, the unique first offset differential value is a unique first offset corresponding to the first carrier component set The difference between the value and the preset first reference value.

The first offset information includes a first offset value corresponding to each carrier member in the first set of carrier members; or,

The first offset information includes a first offset differential value corresponding to each carrier member in the first carrier component set; wherein, the first offset differential value corresponding to a carrier member in the first carrier component set is the first A difference between a first offset value corresponding to a carrier member in a carrier member set and a preset second reference value.

The first offset information includes a unique first offset value corresponding to the first carrier component set and a second offset difference value corresponding to each carrier component in the first carrier component set; wherein, the first carrier component The second offset difference value corresponding to one carrier member in the set is the difference between the first offset value of the carrier member in the first carrier member set and the unique first offset value.

In order to effectively send Msg1 to the network side device, in one possible implementation, sending Msg1 to the network side device includes:

If the terminal device is the first type of terminal device, select the first carrier to send Msg1 to the network side device;

If the terminal device is a second-type terminal device, a second carrier is selected to send the Msg1 to the network side device.

In order to improve the flexibility of carrier selection, in one of the possible implementations,

All the carrier components in the first carrier component set form the first carrier set, the first carrier is selected from the first carrier set, all the carrier components in the second carrier component set form the second carrier set, and the second carrier is selected in the second carrier set Selected from the set; wherein, the first carrier set is orthogonal to the second carrier set, and the first carrier is different from the second carrier.

All carrier components in the first carrier component set form a fourth carrier set, all carrier components in the second carrier component set form a third carrier set, and the second carrier is selected from the third carrier set and/or the fourth carrier set; The first carrier is selected from the fourth carrier set;

Wherein, the third carrier set is orthogonal to the fourth carrier set.

In order to improve configuration flexibility, one of the possible implementations also includes:

Receive carrier group access weight configuration information or carrier access weight configuration information sent by the network side device; wherein, the carrier group access weight configuration information is used to indicate the probability that the terminal device uses the carrier set to initiate random access, and the carrier access weight configuration The information is used to indicate the probability that the terminal device uses the carrier to initiate random access.

In order to reasonably allocate the access ratio of the first type of terminal equipment and the second type of terminal equipment to realize load sharing, in one possible implementation manner,

The second carrier is selected by the terminal device based on the access weight of the carrier set; wherein, the third carrier set has the first access weight, and the fourth carrier set has the second access weight; or,

The second carrier is selected by the terminal device based on the carrier's access weight; wherein, each carrier member in the fourth carrier set has a third access weight corresponding to the first type of terminal device and a third access weight corresponding to the second type of terminal device. The fourth access weight.

receiving physical random access channel configuration information sent by the network side device, where the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access opportunity of the first type of terminal device, and The second random access preamble and/or the second random access opportunity of the second type of terminal device.

In order to effectively identify the type of terminal equipment on the network side, in one possible implementation manner,

If the terminal device is the first type of terminal device, the random access preamble and/or the random access opportunity used by the terminal device is the first random access preamble and/or the first random access opportunity; or,

If the terminal device is a second-type terminal device, the random access preamble and/or random access opportunity used by the terminal device is a second random access preamble and/or a second random access opportunity;

Wherein, the first random access preamble is different from the second random access preamble, and the first random access opportunity is different from the second random access opportunity.

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

If the terminal device is the first type of terminal device, the terminal device selects the first carrier to send Msg1 to the network side device; wherein, the first carrier has a duration value and a first offset value of the first response window corresponding to the first carrier, The first response window is used to characterize the random access response window of the first type of terminal device, and the first type of terminal device does not have GNSS capability;

The terminal device determines the first starting position based on the first offset value, and receives the random access response message Msg2 sent by the network side device within the duration range of the first response window starting from the first starting position; wherein, the first The initial position is used to characterize the initial position of the first response window.

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

If the terminal device is the second type of terminal device, the terminal device selects the second carrier to send Msg1 to the network side device; wherein, the second carrier has a duration value of the second response window corresponding to the second carrier, and the second response window is used to represent A random access response window for a second type of terminal device, where the second type of terminal device has GNSS capabilities;

The terminal device acquires the second starting position, and from the second starting position, receives the Msg2 sent by the network side device within the duration of the second response window; the second starting position is used to represent the start of the second response window start position.

In a fourth aspect, the embodiment of the present application also provides a random access method, which is applied to a network side device, and the method includes:

sending the first carrier configuration information and the second carrier configuration information to the terminal device;

Receive Msg1 sent by the terminal device;

Determine the type of the terminal device based on Msg1, the terminal device is a first type terminal device or a second type terminal device, the first type terminal device does not have GNSS capability, and the second type terminal device has GNSS capability;

If the type of the terminal device is the first type of terminal device, determine the duration value of the first response window based on the type of the terminal device; wherein, the first response window is used to characterize the random access response window of the first type of terminal device;

Send Msg2 to the terminal device based on the duration value of the first response window;

One of the possible implementations also includes:

If the terminal device is the first type of terminal device, receiving the Msg1 sent by the terminal device includes: receiving the Msg1 sent by the terminal device on the first carrier;

If the terminal device is a second-type terminal device, receiving the Msg1 sent by the terminal device includes: receiving the Msg1 sent by the terminal device on the second carrier.

In one possible implementation manner, all carrier members in the first carrier member set form the first carrier set, the first carrier is selected from the first carrier set, and all carrier members in the second carrier member set form the second carrier Set, the second carrier is selected from the second carrier set, the first carrier set is orthogonal to the second carrier set, the first carrier is different from the second carrier, and determining the type of the terminal device based on the Msg1 includes:

The type of the terminal device is determined based on the carrier set where the carrier member used by Msg1 is located.

In one possible implementation manner, all carrier components in the first carrier component set form a fourth carrier set, all carrier components in the second carrier component set form a third carrier set, and the first carrier is in the fourth carrier set Selecting, the second carrier is selected from the third carrier set and/or the fourth carrier set, and the third carrier set is orthogonal to the fourth carrier set.

One of the possible implementations also includes:

Sending physical random access channel configuration information to the terminal device; wherein the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access opportunity of the first type of terminal device, and the second The second random access preamble and/or the second random access opportunity of the type terminal device, the first random access preamble and the second random access preamble are different, the first random access opportunity and the second random access The timing is different.

In one possible implementation manner, determining the type of the terminal device based on Msg1 includes:

The type of the terminal device is determined based on the random access opportunity used by the terminal device to send Msg1 and/or the random access preamble included in Msg1.

One of the possible implementations also includes:

Send carrier group access weight configuration information or carrier access weight configuration information to the terminal device; wherein, the carrier group access weight configuration information is used to indicate the probability that the terminal device uses the carrier set to initiate random access, and the carrier access weight configuration information uses It is used to indicate the probability that the terminal equipment uses the carrier to initiate random access.

In one possible implementation manner, the first response window information includes the duration value of the unique first response window corresponding to the first carrier component set; or,

One of the possible implementations also includes:

sending the preset first reference value to the terminal device;

Wherein, the first offset information includes the unique first offset differential value corresponding to the first carrier component set; the unique first offset differential value is the unique first offset corresponding to the first carrier component set The difference between the value and the preset first reference value.

In one of the possible implementation manners, the first offset information includes the unique first offset value corresponding to the first carrier member set; the unique first offset value is based on the location closest to the satellite in the cell coverage area The round-trip propagation delay with the network side device is determined.

One of the possible implementations also includes:

sending the preset second reference value to the terminal device;

Wherein, the first offset information includes a first offset differential value corresponding to each carrier member in the first carrier component set; the first offset differential value corresponding to a carrier member in the first carrier component set is the first A difference between a first offset value corresponding to a carrier member in a carrier member set and a preset second reference value.

In one of the possible implementations,

The first offset information includes a first offset value corresponding to each carrier member in the first carrier member set;

Wherein, the first offset value corresponding to each carrier member in the first carrier member set is based on the distance between the position closest to the satellite and the network side device in the coverage area of the beam associated with the carrier member in the first carrier member set The round-trip propagation delay is fixed.

In one possible implementation manner, the first offset information includes a unique first offset value corresponding to the first carrier component set and a second offset corresponding to each carrier component in the first carrier component set Difference value; wherein, the second offset difference value corresponding to a carrier member in the first carrier member set is relative to the unique first offset value of the first offset value of the carrier member in the first carrier member set difference.

In a fifth aspect, the embodiment of the present application provides a chip configured to execute the methods described in the first aspect to the fourth aspect.

In a sixth aspect, the embodiment of the present application provides a terminal device, including:

Memory, the memory is used to store computer program codes, the computer program codes include instructions, when the terminal device reads the instructions from the memory, the terminal device executes the methods described in the first aspect to the third aspect.

In the seventh aspect, the embodiment of the present application further provides a network side device, including:

A memory, where the memory is used to store computer program codes, the computer program codes include instructions, and when the network side device reads the instructions from the memory, the network side device executes the method described in the fourth aspect.

In the eighth aspect, the embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored in the computer-readable storage medium, and when it is run on a computer, the computer executes the program as described in the first aspect to the fourth aspect. Methods.

In a ninth aspect, an embodiment of the present application provides a computer program, which is used to execute the methods described in the first aspect to the fourth aspect when the above computer program is executed by a computer.

In a possible design, all or part of the program in the sixth aspect may be stored on a storage medium packaged with the processor, or part or all may be stored on a memory not packaged with the processor.

In a tenth aspect, a terminal device is provided, the terminal device includes various functional units for performing the methods described in the first aspect to the fourth aspect above, and the terminal device realizes the above first aspect to the second aspect through the various functional units Four methods are provided.

In the eleventh aspect, a network side device is provided, the network side device includes various functional units for performing the method described in the fourth aspect above, and the network side device implements the above-mentioned fourth aspect through the various functional units method.

A twelfth aspect provides a random access system, including: the foregoing terminal device and/or the foregoing network side device.

Description of drawings

FIG. 1 is a schematic diagram of the architecture of a non-terrestrial network scenario provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a random access response window provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a hardware structure of a terminal device provided in an embodiment of the present application;

FIG. 4 is a schematic flowchart of a random access method provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an embodiment of a random access device provided by the present application;

FIG. 6 is a schematic structural diagram of another embodiment of a random access device provided by the present application;

FIG. 7 is a schematic structural diagram of another embodiment of a random access apparatus provided in this application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Among them, in the description of the embodiments of this application, unless otherwise specified, "/" means or means, for example, A/B can mean A or B; "and/or" in this article is only a description of associated objects The association relationship of indicates that there may be three kinds of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.

Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

In the narrowband Internet of Things (NB-IOT), a single-frequency cell has only a bandwidth of 180kHz. In addition to narrowband primary synchronization signal (Narrowband Primary Synchronization Signal, NPSS), narrowband secondary synchronization signal (Narrowband Secondary Synchronization Signal, NSSS) and Except for the overhead of the System Information Block (SIB), the remaining traffic channel capacity is very small. In order to support a large number of terminals, it is necessary to use multiple frequency points to increase network capacity. In addition to the anchor carrier (anchor carrier) including NPSS, NSSS and Narrowband Physical Broadcast Channel (NPBCH), the cell can also contain several non-anchor carriers (non -anchor carrier).

A cell includes an anchor carrier and several non-anchor carriers, the spectrum bandwidth of each carrier is 180kHz, and the maximum spectrum span of all carriers in the cell does not exceed 20MHz. Among them, there is one and only one downlink carrier in a multi-carrier cell that supports simultaneous carrying of NPSS, NSSS, NPBCH, narrowband physical downlink control channel (Narrowband Physical Downlink Control Channel, NPDCCH) and narrowband physical downlink shared channel (Narrowband Physical Downlink Shared Channel, NPDSCH) channel, the downlink carrier is called the anchor carrier. Terminal equipment needs to monitor NPSS, NSSS, NPBCH, NPDCCH and NPDSCH information on the anchor carrier. In a multi-carrier cell, there may be several downlink carriers that only carry NPDCCH and NPDSCH, but do not carry NPSS, NSSS and NPBCH channels, and the downlink carriers are called non-anchor carriers. Terminal devices can perform data transmission on non-anchor carriers. In addition, before the terminal device enters the connected state, the network will designate a carrier for subsequent downlink data transmission through Msg4 in the random access process. In the idle state, the terminal device can monitor the paging on the non-anchor carrier.

The method provided in this application can be applied to a non-terrestrial network scenario. Please refer to FIG. 1 , which is a schematic diagram of an architecture of a non-terrestrial network scenario provided by an embodiment of this application.

As shown in FIG. 1 , the non-terrestrial network scenario includes a satellite, a terminal device, and a gateway (gateway, which may also be called a ground station). The wireless link between the satellite and the terminal equipment can be called the service link, the wireless link between the satellite and the gateway station can be called the feedback link, and there can be an inter-satellite link between the satellite and the satellite to provide data backhaul road.

Generally, one or several gateway stations in the non-terrestrial network scenario need to be connected to a public data network (public data network, PDN), such as the network in FIG. 1 .

Exemplarily, a terminal device may also be called a user equipment (User Equipment, UE) or a terminal, and the terminal device may be, for example, a mobile phone or a notebook computer.

In some embodiments, the base station in the non-terrestrial network scenario may be located on land, for example, the gateway station in FIG. 1 may have the function of a base station. At this time, the satellite will act as a relay between the terminal equipment and the gateway station, receive the data sent by the terminal equipment through the service link, and then forward the data to the ground gateway station.

In some other embodiments, the base station in the non-terrestrial network scenario may also be set up on a satellite, for example, the satellite in FIG. 1 may have the function of a base station. At this time, the satellite with base station function can be regarded as a kind of evolved base station (evolutional NodeB, eNB) or 5G base station (gNB).

In the embodiment of the present application, the terminal device can communicate with the network device, and the network device can be understood as a device capable of data processing and network communication. Exemplarily, the network device may include a base station (for example, eNB, gNB, etc.) or a network access device, etc., which is not limited in this application. For ease of description, the method involved in the present application will be described exemplarily below by taking the network device as a satellite with a base station function as an example.

In non-terrestrial networks, a cell may consist of one or more beams. As shown in Figure 1, a cell includes multiple beams. Due to the rapid movement of satellites, terminal equipment needs to frequently switch beams. In the future, IoT devices can be accessed through satellite networks. Therefore, a beam management mechanism is required (the current terrestrial Internet of Things protocol does not support the beam management mechanism). Currently, a more possible beam management method is beam management through carrier switching, that is, a cell may include multiple beams, different beams correspond to different carriers, and beam switching is implemented through carrier switching.

In non-terrestrial networks, different locations within the coverage of a cell or beam have different propagation delays between network devices. Within the coverage of a certain cell or a certain beam, the difference between the propagation delay corresponding to a certain position and the propagation delay corresponding to the position closest to the network device may be called the differential delay corresponding to the position. It is understandable that in non-terrestrial networks, since satellites are relatively far from the ground and the coverage of beams/cells formed by satellites is relatively large, there is a large differential delay within the coverage of beams/cells. For example, within the coverage of a certain cell or a certain beam, the difference between the air interface propagation delay between the position farthest from the network device and the network device and the air interface propagation delay between the position closest to the network device and the network device can be called is the maximum differential delay of the cell. Wherein, if the maximum differential delay is calculated for the coverage of a certain cell, the maximum differential delay is the maximum differential delay at the cell level. It can be understood that the maximum differential delays corresponding to different cells may be the same or different. If the maximum differential delay is calculated for the coverage of a certain beam, the maximum differential delay is the maximum differential delay at the beam level. It can be understood that the maximum differential time delays corresponding to different beam coverages may be the same or different.

The random access process of Narrowband Internet of Things (NB-IOT) is composed of four message sending and receiving steps of Msg1, Msg2, Msg3 and Msg4. Msg1 is a random access request message. This Msg1 contains the preamble of the terminal device. Currently, the maximum number of repetitions sent by Msg1 is 128. Before sending Msg1, the terminal device will obtain the current The signal quality of the cell (ie RSRP), and then compare the measured RSRP value with the relevant threshold value configured by the network to determine the current coverage level (ie CE Level). Different CE Levels correspond to different Physical Random Access Channel (PRACH) configurations (that is, the number of repetitions of Msg1), and the terminal device can determine the number of repetitions of sending Msg1 according to the CE Level determined by itself and randomly select one with the corresponding configuration. The uplink carrier configured by PRACH sends Msg1. If sending Msg1 fails for the first time, the terminal device will upgrade CE Level (that is, increase the number of repetitions of Msg1) and try again until Msg2 is successfully received or all Msg1 repetitions corresponding to CE Level are tried. times (PRACH resources).

When the base station receives Msg1, it will instruct the terminal equipment to send Msg3 resources and related parameters through a random access response message (Msg2), for example, including subcarrier indication, Msg3 repetition times, modulation and coding strategy (Modulation and Coding Scheme) , MCS) instructions, etc. The random access response information (Msg2) is scheduled by the downlink control information (DCI). When receiving Msg2, the terminal device first receives the downlink control information (that is, DCI scrambled by RA-RNTI, which will indicate the transmission of Msg2 parameters, including receiving resource location, subcarrier indication, Msg3 repetition times, MCS indication, etc.), and then receive Msg2 according to the downlink control information. FIG. 2 is a sequence diagram of a terminal device sending Msg1 and receiving Msg2. As shown in Figure 2, after the terminal device sends Msg1, it can determine the initial position of the random access response window according to the offset of the initial position, and the random access response window can be used to receive Msg2 sent by the network side device, It can be understood that the random access response window has a certain duration, therefore, the terminal device can start from the initial position of the random access response window and receive the information sent by the network side device within the duration of the random access response window. Msg2.

The terminal device can send Msg3 according to the relevant scheduling information of Msg3 indicated by the random access response message. After sending Msg3, the terminal device will use the unique identifier carried in Msg3 to monitor the PDCCH. Receive the corresponding Msg4 content (Msg4 is scheduled by DCI).

In non-terrestrial networks, there is a large air interface propagation delay between the terminal device and the base station (for example, eNB in 4G network or gNB in 5G network). After the terminal device sends Msg1, the terminal device needs to wait for a period of time before receiving the random access response sent by the base station. If the terminal device immediately starts the random access response window and monitors the PDCCH after sending the Msg1, the terminal device will perform invalid PDCCH monitoring, resulting in waste of power consumption of the terminal device. In order to reduce the power consumption of terminal devices, in the current protocol, for terminal devices with GNSS, the round-trip propagation delay between the terminal device and the satellite can be determined according to the ephemeris information and GNSS capabilities, and then the public TA and The MAC CE effective delay determines the round-trip propagation delay between the terminal equipment and the base station. Finally, the terminal device determines the starting position of the random access response window according to the determined round-trip propagation delay between the terminal device and the base station. For example, the starting position may be the end time of Msg1 + the round-trip propagation delay between the terminal device and the base station. However, for terminal devices without GNSS capabilities, a method is urgently needed to determine the initial position of the random access response window and the size of the random access response window.

Based on the above problems, the embodiment of the present application proposes a random access method, which is applied to the terminal device 100 and the network side device. The terminal device 100 may be a mobile terminal. The mobile terminal may also be called terminal equipment, user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The embodiment of the present application does not specifically limit the specific form of the terminal device 100 implementing the technical solution.

The exemplary terminal device provided in the following embodiments of the present application is first introduced below with reference to FIG. 3 . FIG. 3 shows a schematic structural diagram of the terminal device 100 .

The terminal device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, and an antenna 2 , mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone jack 170D, sensor module 180, button 190, motor 191, indicator 192, camera 193, display screen 194, and A subscriber identification module (subscriber identification module, SIM) card interface 195 and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, bone conduction sensor 180M, etc.

It can be understood that, the structure shown in the embodiment of the present invention does not constitute a specific limitation on the terminal device 100 . In other embodiments of the present application, the terminal device 100 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processing unit (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

The controller can generate an operation control signal according to the instruction opcode and timing signal, and complete the control of fetching and executing the instruction.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transmitter (universal asynchronous receiver/transmitter, UART) interface, mobile industry processor interface (mobile industry processor interface, MIPI), general-purpose input and output (general-purpose input/output, GPIO) interface, subscriber identity module (subscriber identity module, SIM) interface, and /or universal serial bus (universal serial bus, USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus, including a serial data line (serial data line, SDA) and a serial clock line (derail clock line, SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 can be respectively coupled to the touch sensor 180K, the charger, the flashlight, the camera 193 and the like through different I2C bus interfaces. For example, the processor 110 may be coupled to the touch sensor 180K through an I2C interface, so that the processor 110 communicates with the touch sensor 180K through an I2C bus interface to realize the touch function of the terminal device 100 .

The I2S interface can be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 through an I2S bus to implement communication between the processor 110 and the audio module 170 . In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the I2S interface, so as to realize the function of answering calls through the Bluetooth headset.

The PCM interface can also be used for audio communication, sampling, quantizing and encoding the analog signal. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface. In some embodiments, the audio module 170 can also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communication. The bus can be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect the processor 110 and the wireless communication module 160 . For example: the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to realize the Bluetooth function. In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the UART interface, so as to realize the function of playing music through the Bluetooth headset.

The MIPI interface can be used to connect the processor 110 with peripheral devices such as the display screen 194 and the camera 193 . MIPI interface includes camera serial interface (camera serial interface, CSI), display serial interface (display serial interface, DSI), etc. In some embodiments, the processor 110 communicates with the camera 193 through a CSI interface to realize the shooting function of the terminal device 100 . The processor 110 communicates with the display screen 194 through the DSI interface to realize the display function of the terminal device 100 .

The GPIO interface can be configured by software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 110 with the camera 193 , the display screen 194 , the wireless communication module 160 , the audio module 170 , the sensor module 180 and so on. The GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, etc.

The USB interface 130 is an interface conforming to the USB standard specification, specifically, it can be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface 130 can be used to connect a charger to charge the terminal device 100, and can also be used to transmit data between the terminal device 100 and peripheral devices. It can also be used to connect headphones and play audio through them. This interface can also be used to connect other terminal devices, such as AR devices.

It can be understood that the interface connection relationship between modules shown in the embodiment of the present invention is only a schematic illustration, and does not constitute a structural limitation of the terminal device 100 . In other embodiments of the present application, the terminal device 100 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.

The charging management module 140 is configured to receive a charging input from a charger. Wherein, the charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 can receive charging input from the wired charger through the USB interface 130 . In some wireless charging embodiments, the charging management module 140 may receive wireless charging input through the wireless charging coil of the terminal device 100 . While the charging management module 140 is charging the battery 142 , it can also supply power to the terminal device through the power management module 141 .

The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives the input from the battery 142 and/or the charging management module 140 to provide power for the processor 110 , the internal memory 121 , the display screen 194 , the camera 193 , and the wireless communication module 160 . The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be disposed in the processor 110 . In some other embodiments, the power management module 141 and the charging management module 140 may also be set in the same device.

The wireless communication function of the terminal device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the terminal device 100 can be used to cover single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide wireless communication solutions including 2G/3G/4G/5G applied on the terminal device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA) and the like. The mobile communication module 150 can receive electromagnetic waves through the antenna 1, filter and amplify the received electromagnetic waves, and send them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signals modulated by the modem processor, and convert them into electromagnetic waves and radiate them through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be set in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be set in the same device.

A modem processor may include a modulator and a demodulator. Wherein, the modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator sends the demodulated low-frequency baseband signal to the baseband processor for processing. The low-frequency baseband signal is passed to the application processor after being processed by the baseband processor. The application processor outputs sound signals through audio equipment (not limited to speaker 170A, receiver 170B, etc.), or displays images or videos through display screen 194 . In some embodiments, the modem processor may be a stand-alone device. In some other embodiments, the modem processor may be independent from the processor 110, and be set in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide applications on the terminal device 100 including wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (wireless fidelity, Wi-Fi) network), bluetooth (bl terminal device tooth, BT), GNSS, frequency modulation (freq terminal equipment ncy modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , frequency-modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

In some embodiments, the antenna 1 of the terminal device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the terminal device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC , FM, and/or IR techniques, etc. The GNSS may include a global positioning system (global positioning system, GPS), a Beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi-zenith satellite system (quasi-zenith satellite system, QZSS) and/or satellite-based augmentation System (satellite based augmentation systems, SBAS).

The terminal device 100 implements a display function through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos and the like. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active matrix organic light emitting diode or an active matrix organic light emitting diode (active-matrix organic light emitting diode, AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light emitting diodes (quantum dot light emitting diodes, QLED), etc. In some embodiments, the terminal device 100 may include 1 or N display screens 194, where N is a positive integer greater than 1.

The terminal device 100 can realize the shooting function through the ISP, the camera 193 , the video codec, the GPU, the display screen 194 and the application processor.

The ISP is used for processing the data fed back by the camera 193 . For example, when taking a picture, open the shutter, the light is transmitted to the photosensitive element of the camera through the lens, and the light signal is converted into an electrical signal, and the photosensitive element of the camera transmits the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye. ISP can also perform algorithm optimization on image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be located in the camera 193 .

Camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects it to the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the light signal into an electrical signal, and then transmits the electrical signal to the ISP to convert it into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. DSP converts digital image signals into standard RGB, YUV and other image signals. In some embodiments, the terminal device 100 may include 1 or N cameras 193, where N is a positive integer greater than 1.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.

Video codecs are used to compress or decompress digital video. The terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record videos in various encoding formats, for example: moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The NPU is a neural-network (NN) computing processor. By referring to the structure of biological neural networks, such as the transfer mode between neurons in the human brain, it can quickly process input information and continuously learn by itself. Applications such as intelligent cognition of the terminal device 100 can be implemented through the NPU, such as image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. Such as saving music, video and other files in the external memory card.

The internal memory 121 may be used to store computer-executable program codes including instructions. The internal memory 121 may include an area for storing programs and an area for storing data. Wherein, the stored program area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.) and the like. The storage data area can store data created during the use of the terminal device 100 (such as audio data, phonebook, etc.) and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (universal flash storage, UFS) and the like. The processor 110 executes various functional applications and data processing of the terminal device 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The terminal device 100 may implement an audio function through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, and an application processor. Such as music playback, recording, etc.

The audio module 170 is used to convert digital audio information into analog audio signal output, and is also used to convert analog audio input into digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be set in the processor 110 , or some functional modules of the audio module 170 may be set in the processor 110 .

Speaker 170A, also referred to as a "horn", is used to convert audio electrical signals into sound signals. The terminal device 100 can listen to music through the speaker 170A, or listen to hands-free calls.

Receiver 170B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the terminal device 100 receives a phone call or voice information, the receiver 170B can be placed close to the human ear to receive the voice.

The microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a phone call or sending a voice message, the user can put his mouth close to the microphone 170C to make a sound, and input the sound signal to the microphone 170C. The terminal device 100 may be provided with at least one microphone 170C. In some other embodiments, the terminal device 100 may be provided with two microphones 170C, which may also implement a noise reduction function in addition to collecting sound signals. In some other embodiments, the terminal device 100 can also be provided with three, four or more microphones 170C to realize sound signal collection, noise reduction, identify sound sources, and realize directional recording functions, etc.

The earphone interface 170D is used for connecting wired earphones. The earphone interface 170D may be a USB interface 130, or a 3.5mm open mobile terminal platform (open mobile terminal platform, OMTP) standard interface, or a cellular telecommunications industry association of the USA (CTIA) standard interface.

The pressure sensor 180A is used to sense the pressure signal and convert the pressure signal into an electrical signal. In some embodiments, pressure sensor 180A may be disposed on display screen 194 . There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, and capacitive pressure sensors. A capacitive pressure sensor may be comprised of at least two parallel plates with conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. The terminal device 100 determines the intensity of pressure according to the change in capacitance. When a touch operation acts on the display screen 194, the terminal device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The terminal device 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example: when a touch operation with a touch operation intensity less than the first pressure threshold acts on the short message application icon, an instruction to view short messages is executed. When a touch operation whose intensity is greater than or equal to the first pressure threshold acts on the icon of the short message application, the instruction of creating a new short message is executed.

The gyroscope sensor 180B can be used to determine the motion posture of the terminal device 100 . In some embodiments, the angular velocity of the terminal device 100 around three axes (ie, x, y and z axes) can be determined by the gyro sensor 180B. The gyro sensor 180B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyro sensor 180B detects the shaking angle of the terminal device 100, calculates the distance that the lens module needs to compensate according to the angle, and allows the lens to counteract the shaking of the terminal device 100 through reverse motion to achieve anti-shake. The gyro sensor 180B can also be used for navigation and somatosensory game scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, the terminal device 100 calculates the altitude based on the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.

The magnetic sensor 180D includes a Hall sensor. The terminal device 100 may use the magnetic sensor 180D to detect the opening and closing of the flip holster. In some embodiments, when the terminal device 100 is a clamshell machine, the terminal device 100 may detect opening and closing of the clamshell according to the magnetic sensor 180D. Furthermore, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, features such as automatic unlocking of the flip cover are set.

The acceleration sensor 180E can detect the acceleration of the terminal device 100 in various directions (generally three axes). When the terminal device 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to recognize the posture of terminal equipment, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc.

The distance sensor 180F is used to measure the distance. The terminal device 100 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the terminal device 100 may use the distance sensor 180F for distance measurement to achieve fast focusing.

Proximity light sensor 180G may include, for example, light emitting diodes (LEDs) and light detectors, such as photodiodes. The light emitting diodes may be infrared light emitting diodes. The terminal device 100 emits infrared light through the light emitting diode. The terminal device 100 detects infrared reflected light from nearby objects using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object near the terminal device 100 . When insufficient reflected light is detected, the terminal device 100 may determine that there is no object near the terminal device 100 . The terminal device 100 can use the proximity light sensor 180G to detect that the user holds the terminal device 100 close to the ear to make a call, so as to automatically turn off the screen to save power. The proximity light sensor 180G can also be used in leather case mode, automatic unlock and lock screen in pocket mode.

The ambient light sensor 180L is used for sensing ambient light brightness. The terminal device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the terminal device 100 is in the pocket to prevent accidental touch.

The fingerprint sensor 180H is used to collect fingerprints. The terminal device 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access to application locks, take pictures with fingerprints, answer incoming calls with fingerprints, and so on.

The temperature sensor 180J is used to detect temperature. In some embodiments, the terminal device 100 uses the temperature detected by the temperature sensor 180J to implement a temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds the threshold, the terminal device 100 executes reducing the performance of a processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection. In some other embodiments, when the temperature is lower than another threshold, the terminal device 100 heats the battery 142 to avoid abnormal shutdown of the terminal device 100 due to low temperature. In some other embodiments, when the temperature is lower than another threshold, the terminal device 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.

The touch sensor 180K is also called "touch device". The touch sensor 180K can be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also called a “touch screen”. The touch sensor 180K is used to detect a touch operation on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to the touch operation can be provided through the display screen 194 . In other embodiments, the touch sensor 180K may also be disposed on the surface of the terminal device 100 , which is different from the position of the display screen 194 .

The bone conduction sensor 180M can acquire vibration signals. In some embodiments, the bone conduction sensor 180M can acquire the vibration signal of the vibrating bone mass of the human voice. The bone conduction sensor 180M can also contact the human pulse and receive the blood pressure beating signal. In some embodiments, the bone conduction sensor 180M can also be disposed in the earphone, combined into a bone conduction earphone. The audio module 170 can analyze the voice signal based on the vibration signal of the vibrating bone mass of the vocal part acquired by the bone conduction sensor 180M, so as to realize the voice function. The application processor can analyze the heart rate information based on the blood pressure beating signal acquired by the bone conduction sensor 180M, so as to realize the heart rate detection function.

The keys 190 include a power key, a volume key and the like. The key 190 may be a mechanical key. It can also be a touch button. The terminal device 100 may receive key input and generate key signal input related to user settings and function control of the terminal device 100 .

The motor 191 can generate a vibrating reminder. The motor 191 can be used for incoming call vibration prompts, and can also be used for touch vibration feedback. For example, touch operations applied to different applications (such as taking pictures, playing audio, etc.) may correspond to different vibration feedback effects. The motor 191 may also correspond to different vibration feedback effects for touch operations acting on different areas of the display screen 194 . Different application scenarios (for example: time reminder, receiving information, alarm clock, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

The indicator 192 can be an indicator light, and can be used to indicate charging status, power change, and can also be used to indicate messages, missed calls, notifications, and the like.

The SIM card interface 195 is used for connecting a SIM card. The SIM card can be connected and separated from the terminal device 100 by inserting it into the SIM card interface 195 or pulling it out from the SIM card interface 195 . The terminal device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 195 can support NanoSIM card, MicroSIM card, SIM card and so on. Multiple cards can be inserted into the same SIM card interface 195 at the same time. The types of the multiple cards may be the same or different. The SIM card interface 195 is also compatible with different types of SIM cards. The SIM card interface 195 is also compatible with external memory cards. The terminal device 100 interacts with the network through the SIM card to implement functions such as calling and data communication. In some embodiments, the terminal device 100 adopts an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the terminal device 100 and cannot be separated from the terminal device 100 .

The random access method provided by Embodiment 1 of the present application will now be described with reference to FIG. 4 .

As shown in Figure 4, it is a schematic flowchart of an embodiment of a random access method provided by the embodiment of the present application, including:

Step 401, the network sends carrier configuration information to the terminal device.

Specifically, the above-mentioned network can be a network-side device, and the above-mentioned network-side device can be a satellite, that is, in the above-mentioned scenario, the satellite can be regarded as a base station, and the terminal device directly communicates with the satellite (that is, the base station). The aforementioned network side equipment may also include a satellite and a base station. In this case, the satellite can act as a relay forwarding role, that is, the terminal equipment communicates with the base station on the ground through the relay of the satellite. For the convenience of description, the network-side device is referred to as "network" for short below.

The aforementioned types of terminal devices may include two types, for example, GNSS type (also may be called the second type) and non-GNSS type (also may be called the first type). Wherein, the GNSS-type terminal device can be used to represent a terminal device with GNSS capability, and the non-GNSS-type terminal device can be used to represent a terminal device without GNSS capability. The terminal device in step 401 may be a GNSS type terminal device, or may be a non-GNSS type terminal device.

The terminal device may select a carrier in the cell to initiate random access, for example, may send Msg1 to the network, and the Msg1 may include a preamble. Wherein, Msg1 is carried by PRACH. The network can group the carriers in the cell in advance, that is to say, the network can group the carriers in the cell based on GNSS-type terminal devices and non-GNSS-type terminal devices, so that a carrier set can be obtained.

After the network performs carrier grouping, GNSS-type terminal devices and non-GNSS-type terminal devices can be configured with different carrier groups, and the carriers in the carrier group can be used to initiate a random access procedure. Wherein, each carrier group may include one or more carriers. For the convenience of description, the carrier group corresponding to non-GNSS type terminal equipment may be referred to as "the first carrier group" below, and the first carrier group may include one or more carriers; the carrier group corresponding to GNSS type terminal equipment shall be It may be called a "second carrier group", and the second carrier group may include one or more carriers. It can be understood that the above carrier group may also be referred to as a carrier set, for example, the first carrier group may also be referred to as a first carrier set, and the second carrier group may also be referred to as a second carrier set. For the convenience of description, the carrier The collection is called a carrier group. Exemplarily, a non-GNSS type terminal device may select a carrier in the above-mentioned first carrier group to initiate random access. For the convenience of description, the carrier used by the non-GNSS type terminal device for sending Msg1 is referred to below as is the "first carrier"; GNSS-type terminal devices can select a carrier from the above-mentioned second carrier group to initiate random access. For the convenience of description, the GNSS-type terminal device is used to send the carrier used by Msg1 below Called "Second Carrier".

The foregoing information for configuring the carrier group (for example, the first carrier configuration information and the second carrier configuration information) may be sent by the network to the terminal device. Exemplarily, the network may send the first carrier configuration information and the second carrier configuration information to the terminal device through system information or RRC dedicated signaling. The first carrier configuration information may include first carrier member set information, and the first carrier member The aggregation information may include one or more carrier member indexes (for example, the carrier member index in the first carrier group); the above-mentioned second carrier configuration information may include second carrier member set information, and the second carrier member set information may be The index of one or more carrier components (eg, the index of the carrier component in the second carrier group) is included, and the index of the carrier component can be used to identify the identity of the carrier component (eg, used to distinguish the carrier component). It can be understood that the above-mentioned first carrier may be selected from the first carrier group, and the above-mentioned second carrier may be selected from the second carrier group; the first carrier group may be one or more of the first carrier configuration information sent by the network. The second carrier group may be composed of one or more carrier components in the second carrier configuration information sent by the network. If the first carrier group is composed of all carrier members configured by the first carrier configuration information sent by the network, the first carrier member set is also the first carrier group; if the second carrier group is configured by the second carrier configuration information sent by the network All carrier components are composed, and the second carrier component set is also the second carrier group. It should be noted that the foregoing first carrier group and the second carrier group are orthogonal, that is, there is no intersection between carrier components in the first carrier group and carrier components in the second carrier group.

Further, the above carrier configuration information may also be used to configure the start position offset value and duration value of the random access response window of each carrier member in the carrier member set. Exemplarily, a non-GNSS type terminal device can use an extended random access response window. It can be understood that the duration of the extended random access response window can be the same as or different from the duration of the random access response window specified in the existing protocol. . GNSS-type terminal equipment can use the random access response window specified in the existing protocol. For the convenience of description, the extended random access response window used by non-GNSS terminal devices is referred to as the "first response window", and the random access response window used by GNSS terminal devices is referred to as the "second response window" , where the duration of the first response window may be different from the duration of the second response window.

In order to enable non-GNSS terminal devices to determine the specific position of the first response window, the first carrier configuration information may include first offset information and first response window information corresponding to the first carrier component set. Wherein, the first offset information corresponding to the first carrier component set is used to determine the first offset value corresponding to the carrier components in the first carrier component set, and the first offset value is used to determine the first response window The starting position, that is, the first offset may be used to characterize the time interval between the end position of the transmission resource used for sending Msg1 and the starting position of the first response window. Therefore, the first offset value may also be referred to as a starting position offset value. The first response window information is used to determine the duration of the first response window corresponding to the carrier components in the first carrier component set. The first offset value and the duration of the first response window corresponding to a carrier component may be used by a terminal device using the carrier to determine the position of the first response window.

Specifically, the first offset value corresponding to the carrier components in the first carrier component set may be configured in the following ways 1-5.

way 1

The first carrier configuration information includes first offset information corresponding to the first carrier component set, and the first offset information includes a unique first offset value corresponding to the first carrier component set.

In manner 1, the first offset value is at the carrier group level or at the cell level. The start position of the first response window may be determined by the end position of the transmission resource used for sending Msg1 and the first offset value. Exemplarily, the network may configure a first offset value for all carrier members in the first carrier group, that is, the network may configure the terminal device with the first offset value corresponding to the first carrier group through system information or RRC dedicated signaling. An offset value, no matter which carrier member in the first carrier group is selected by the non-GNSS type terminal equipment, the network uses the same first offset value to determine the starting position of the first response window. During specific implementation, the above-mentioned first offset value may be determined by the network according to the round-trip propagation delay between the position closest to the satellite in the coverage area of the cell and the base station. For example, the network first calculates the round-trip propagation delay T1 between the position closest to the satellite in the coverage area of the cell and the satellite based on the ephemeris information, and then determines the above-mentioned first offset by combining the public TA value T2 and the MAC CE effective delay value T3 value, that is, the above-mentioned first offset value is: T1+T2+T3; or, the network calculates the round-trip propagation delay T1 between the position closest to the satellite and the satellite in the coverage area of the cell according to the ephemeris information and the base station to The round-trip propagation delay between satellites is T4, and the network determines the first offset value as: T1+T4.

way 2

The first carrier configuration information includes first offset information corresponding to the first carrier member set, and the first offset information includes the unique first offset difference value corresponding to the first carrier member set; wherein, the unique The first offset difference value is a difference between the unique first offset value corresponding to the first carrier component set and the preset first reference value.

The difference between method 2 and method 1 is that method 1 directly indicates the first offset value at the carrier group level or cell level, and method 2 indirectly indicates the first offset value at the carrier group level or cell level . At this time, the first offset value at the carrier group level or at the cell level=the first reference value+the unique first offset difference value corresponding to the first carrier component set.

In method 2, it should be noted that this is only an example of how to indirectly indicate the first offset value at the carrier group level or at the cell level. In actual implementation, there may also be In other manners, for example, the first offset information may include a scale factor (or a ratio) between the first reference value and the unique first offset value corresponding to the first carrier component set.

In mode 2, optionally, the method further includes: the network sends a preset first reference value to the terminal device. In addition to being sent by the network to the terminal device, the first reference value may also be pre-configured in the terminal device or stipulated by a protocol, which is not limited in this application.

way 3

The first carrier configuration information includes first offset information corresponding to the first carrier component set, and the first offset information includes a first offset value corresponding to each carrier component in the first carrier component set.

In mode 3, the first offset value is at the carrier level, that is, the network can configure the terminal device with the first offset corresponding to each carrier member in the first carrier member set through system information or RRC dedicated signaling Each carrier member in the first carrier member set may correspond to a first offset value. Since the network configures a first offset value for each carrier member in the first carrier member set, the terminal device can determine the first offset value corresponding to the current carrier member according to the currently used carrier member. Wherein, the first offset value of each carrier component may be determined according to the round-trip propagation delay between the position closest to the satellite and the base station in the beam coverage area corresponding to the carrier component. For example, the network first calculates the round-trip propagation delay T1 between the position closest to the satellite and the satellite in the beam coverage area corresponding to a certain carrier member based on the ephemeris information, and then combines the public TA value T2 and the MAC CE effective delay value T3 determines the first offset value corresponding to the carrier member, that is, the first offset value corresponding to the carrier member is: T1+T2+T3; or, the network calculates the corresponding offset value of a carrier member according to the ephemeris information The round-trip propagation delay T1 between the position closest to the satellite in the beam coverage area and the satellite, and the round-trip propagation delay T4 between the base station and the satellite, the network determines the first offset value corresponding to the carrier member as: T1+ T4.

way 4

The first carrier configuration information includes first offset information corresponding to the first carrier member set, and the first offset information includes a first offset difference value corresponding to each carrier member in the first carrier member set; Wherein, the first offset difference value corresponding to a carrier member in the first carrier component set is the difference between the first offset value corresponding to the carrier component in the first carrier component set and the preset second reference value .

The difference between mode 4 and mode 3 is that mode 3 directly indicates the first offset value of the carrier class, and mode 4 indirectly indicates the first offset value of the carrier class. At this time, for carrier A in the first carrier member set, the first offset value corresponding to carrier A=the second reference value+the first offset difference value corresponding to carrier A.

In method 4, it should be noted that this is just an example of how to indirectly indicate the first offset value of the carrier level, and there may be other methods in actual implementation, for example, the first The offset information may include a scale factor (or a ratio) between the second reference value and the first offset value corresponding to each carrier component in the first carrier component set.

In mode 4, optionally, the method further includes: the network sends a preset second reference value to the terminal device. In addition to being sent by the network to the terminal device, the second reference value may also be pre-configured in the terminal device or specified by a protocol, which is not limited in this application.

Compared with way 3, way 4 does not need too many bit indications for the first offset corresponding to each carrier component due to the existence of the second reference value, and therefore, signaling overhead can be reduced.

way 5

The first carrier configuration information includes the first offset information corresponding to the first carrier component set, and the first offset information includes the unique first offset value corresponding to the first carrier component set and the first offset value corresponding to the first carrier component set. The second offset difference value corresponding to each carrier member in the set; wherein, the second offset difference value corresponding to a carrier member in the first carrier member set is the first offset value of the carrier member in the first carrier member set The difference of the offset value relative to the unique first offset value.

In mode 5, the unique first offset value corresponding to the first carrier member set is the first offset value at the carrier level or cell level.

In mode 5, the network can configure a starting position offset value of the first response window at the cell level or carrier group level for the terminal device through system information or RRC dedicated signaling, that is, the network can configure the terminal device through system information or The RRC dedicated signaling indicates the non-GNSS type terminal equipment a cell-level or carrier group-level first offset value. When the non-GNSS type terminal device does not obtain the first offset value at the carrier level, the first offset value at the cell level or carrier group level may be used to determine the starting position of the first response window. The above carrier-level first offset value can be configured in the following manner: Exemplarily, the network can indicate the relative value of the carrier-level first offset value based on the carrier group-level first offset value, that is, That is, the network can indicate the difference between the first offset value of a certain carrier member and the first offset value of the carrier group level, and the non-GNSS type terminal device can use the difference indicated by the network and the carrier group level The first offset value of determines the first offset value of the carrier component.

Way 5 is similar to way 4, and is also a method of indirectly indicating the first offset value of the carrier level. At this time, for carrier A in the first carrier member set, the first offset value corresponding to carrier A=the unique first offset value corresponding to the first carrier member set+the second offset value corresponding to carrier A Shift differential value.

In method 5, it should be noted that this is only an example of how to indirectly indicate the first offset value of the carrier level, and there may be other methods in actual implementation, for example, the first The offset information may include a scaling factor between the unique first offset value corresponding to the first carrier component set and the first offset value corresponding to each carrier component in the first carrier component set (or ratio).

Similar to mode 4, mode 5 can also reduce signaling overhead.

In the above method 2 and method 4, the network can also indicate the first offset value of the carrier group level or carrier level of the non-GNSS type terminal equipment based on a reference value, that is, the network can configure the non-GNSS type terminal equipment The difference between the first offset value of a certain carrier group or a certain carrier member of the device relative to the above-mentioned reference value, non-GNSS type terminal equipment can determine the above-mentioned carrier group or the above-mentioned carrier according to the difference and the reference value indicated by the network The first offset value of the member. It can be understood that the above reference value may be pre-configured by the network according to the ephemeris information.

Specifically, the duration of the first response window corresponding to the carrier components in the first carrier component set may be configured through the following method (1) or method (2).

way(1)

The first carrier configuration information includes first response window information, and the first response window information includes a unique duration value of the first response window.

In way (1),

The first carrier configuration information may include a duration value of the first response window, and the network may send the above-mentioned first carrier configuration information through system information or RRC dedicated signaling to configure the duration value of the first response window corresponding to the first carrier group , that is, configure the duration value of the random access response window at the carrier group level for the terminal device of the non-GNSS type, that is, each carrier member in the first carrier group corresponds to the same duration value of the first response window. No matter which carrier member of the first carrier group is used by the non-GNSS terminal device to initiate random access, the same duration value of the first response window is used.

way (2)

The first carrier configuration information includes first response window information, and the first response window information includes a duration value of the first response window corresponding to each carrier member in the first carrier member set.

In mode (2), the above-mentioned first carrier configuration information may also include the duration values of multiple first response windows, and the network may also send the above-mentioned first carrier configuration information through system information or RRC dedicated signaling. Configure the duration value of the corresponding first response window for each carrier member in the configuration, that is, configure the duration value of the carrier-level random access response window for non-GNSS type terminal equipment, that is, each carrier member in the first carrier group Each corresponds to a duration value of the first response window. The network will configure each carrier member in the first carrier group with the duration value of the first response window corresponding to the carrier member, so that the network can determine the time period corresponding to the above determined carrier according to the carrier currently selected by the non-GNSS type terminal device. The duration value of the first response window corresponding to the carrier.

It can be understood that the foregoing second carrier configuration information may also include a duration value of the second response window. The configuration method of the duration value of the second response window can refer to the method of the existing protocol, and will not be repeated here.

Optionally, the first carrier configuration information may not include the first response window information, and at this time, the duration value of the first response window may be determined by the duration value of the second response window.

It should be noted that, the above second carrier configuration information does not include the start position offset value of the second response window. If the type of the terminal device is GNSS type, the starting position of the second response window may be determined according to the sending time of Msg1 and the starting position offset value of the second response window. For the convenience of description, the starting position offset of the second response window is referred to as the "second offset" hereinafter. Wherein, the second offset may be used to characterize the time interval between the end position of Msg1 and the second response window, and the second offset value may be determined by the uplink TA and MAC CE effective delay value. That is to say, the first offset corresponds to the first carrier, and can be pre-configured by the network for non-GNSS type terminal equipment, and the second offset value is calculated by the GNSS type terminal equipment in real time, which is the same as the first The two carriers are independent and are not configured by the network.

It should be noted that the information sent by the network in each of the above methods can be sent to the terminal device through system information or RRC dedicated signaling, wherein different information can be sent in the same message or in different messages Send in, this application is not limited.

Step 402, the terminal device sends Msg1 (that is, a random access request message) to the network. Correspondingly, the network receives the Msg1 sent by the terminal device.

Specifically, after the terminal device receives the carrier configuration information sent by the network, it can obtain a carrier set from the above carrier configuration information, and can select a carrier from the carrier set to initiate random access, for example, it can use the selected carrier to send the network Send Msg1.

In a specific implementation, a non-GNSS type terminal device may select a carrier (for example, the first carrier) in the above-mentioned first carrier group for initiating random access, and a GNSS type terminal device may select a carrier (for example, the first carrier) in the above-mentioned second carrier group A carrier (for example, the second carrier) is selected for initiating random access.

Correspondingly, the network may receive the Msg1 sent by the terminal device of the non-GNSS type on the first carrier, and may also receive the Msg1 sent by the terminal device of the GNSS type on the second carrier.

Step 403, the network sends Msg2 (that is, a random access response message) to the terminal device. Correspondingly, the terminal device receives Msg2 sent by the network.

Specifically, after the network receives the Msg1 sent by the terminal device, it can determine the time window for sending the Msg2, and can send the Msg2 to the terminal device according to the time window. Wherein, the above time window for sending Msg2 may be a random access response window.

In specific implementation, after the network receives the Msg1 sent by the terminal device, it can determine the type of the terminal device based on Msg1. In Embodiment 1, the carrier used by the terminal device to send Msg1 can be determined, and the type of the terminal device can be determined according to the carrier group to which the carrier belongs, for example, it can be determined whether the terminal device is a non-GNSS type or a GNSS type. If the terminal device uses a carrier in the first carrier group to send Msg1, since the first carrier group is only allocated to non-GNSS type terminal devices, it can be determined that the terminal device is a non-GNSS type; if the terminal device uses a The carrier in the second carrier group sends Msg1, and since the second carrier group is only allocated to the terminal device of the GNSS type, it can be determined that the terminal device is of the GNSS type.

After the network determines the type of the terminal device, the random access response window may be determined according to the type of the terminal device. For example, if the terminal device is a non-GNSS type terminal device, the network may use the duration of the first response window corresponding to the carrier currently used by the non-GNSS type terminal device to send Msg2. If the terminal device is a GNSS type terminal device, Msg2 is sent using the duration of the second response window.

Specifically, the terminal device may start to receive Msg2 according to the starting position of the random access response window, and the duration of receiving Msg2 may be determined by the duration of the random access response window. Exemplarily, a non-GNSS type terminal device can receive Msg2 from the start position of the first response window within the duration of the first response window, and a GNSS type terminal device can receive Msg2 from the second response window within the duration of the second response window. Receive Msg2 from the start position of the window.

Wherein, for a non-GNSS type terminal device, after the non-GNSS type terminal device receives the first offset value indicated by the network, it may use the first offset value corresponding to the first carrier selected by the non-GNSS type terminal device. The offset value and the sending time of Msg1 determine the starting position of the first response window, that is, the starting position of receiving Msg2, and the receiving of Msg2 can be started at the starting position of receiving Msg2. It can be understood that, the above-mentioned first offset value corresponding to the first carrier selected by the non-GNSS type terminal device may be the first offset value at the carrier group level, or the first offset value at the carrier level . In this way, the non-GNSS type terminal device can accurately calculate the time to receive the Msg2, and then can effectively realize the reception of the Msg2, so that the random access of the non-GNSS type terminal device can be successfully completed.

For a GNSS type terminal device, the start position of the second time window may be determined according to the stipulations of the existing protocol, for example, according to the sending moment of Msg1 and the second offset. Then, the GNSS-type terminal device may start to receive Msg2 at the start position of the second time window.

Step 404, the terminal device sends Msg3 to the network. Correspondingly, the network receives Msg3 sent by the terminal device.

For the above-mentioned interaction process of Msg3 between the terminal device and the network, reference may be made to existing protocols, and details will not be repeated here.

Step 405, the network sends Msg4 to the terminal device. Correspondingly, the terminal device receives the Msg4 sent by the network.

Wherein, the implementation of step 405 may refer to existing protocols, and will not be repeated here.

Next, the random access method provided by this application is further described through the second embodiment.

The difference between the second embodiment and the first embodiment is:

In step 401, when the network groups all carriers in the cell, the network may group some carriers into a "third carrier group", and group the remaining carriers into a "fourth carrier group". Wherein, the carriers of the third carrier group can be used for GNSS-type terminal devices to initiate random access, and the carriers of the fourth carrier group can be used for GNSS-type terminal devices and non-GNSS-type terminal devices to initiate random access. In this way, when the network sends the carrier configuration information to the terminal device, the first carrier configuration information may carry carrier member information in the fourth carrier group, and the second carrier configuration information may carry carrier member information in the third carrier group.

Exemplarily, the first carrier configuration information may include first carrier member set information, and the first carrier member set information may include one or more carrier member indexes (for example, the carrier member index in the fourth carrier group) , the foregoing second carrier configuration information may include second carrier member set information, and the second carrier member set information may include one or more carrier member indexes (for example, indexes of carrier members in the third carrier group). The first carrier may be selected from the fourth carrier group, and the second carrier may be selected from the third carrier group and/or the fourth carrier group. The fourth carrier group may consist of one or more carrier components in the first carrier configuration information sent by the network, and the third carrier group may consist of one or more carrier components in the second carrier configuration information sent by the network. If the fourth carrier group is composed of all carrier members configured by the first carrier configuration information sent by the network, the first carrier member set is also the fourth carrier group; if the third carrier group is configured by the second carrier configuration information sent by the network All carrier components are formed, and the second carrier component set is also the third carrier group. It should be noted that the third carrier group and the fourth carrier group are orthogonal, that is, there is no intersection between carrier components in the third carrier group and carrier components in the fourth carrier group.

Optionally, for a GNSS-type terminal device, since it can select carriers in two carrier groups, the network can configure different access points on the two carrier groups (for example, the third carrier group and the fourth carrier group). input weight to balance the load of the carrier group. For example, the network device may configure different access weights for two carriers through the carrier group access weight configuration information. The carrier group access weight configuration information may be sent by the network to the terminal device in advance, and the carrier group access weight configuration information may be used to represent the probability that the terminal device uses the carrier group to initiate random access. For example, the network may indicate the above carrier group access weight configuration information to the terminal device through system information or RRC dedicated signaling. At this time, the second carrier is selected by the terminal device based on the access weight of the carrier set; wherein, the third carrier set has the first access weight, and the fourth carrier set has the second access weight. Exemplarily, the network may configure the access weight of the GNSS-type terminal device on the third carrier group to be 80%, and the access weight on the fourth carrier group to be 20%. GNSS-type terminal equipment can first select a carrier group according to the access weights of the above two carrier groups. For example, it can select a carrier group with a high access weight (that is, the third carrier group). Select an appropriate carrier to initiate random access. It can be understood that the carrier group access weight configuration information is used to indicate the probability that the terminal device uses the carrier group to initiate random access.

Optionally, since the carriers in the fourth carrier group can be used by both GNSS-type terminal devices and non-GNSS-type terminal devices, the network can configure two carrier members in the fourth carrier group An access weight, the access weight information can also be used to represent the probability that the terminal device uses the carrier to initiate random access, so as to balance the carrier load. For example, the network device may configure different access weights for two carriers through carrier access weight configuration information. Wherein, one access weight is used for GNSS-type terminal equipment to initiate random access, and the other access weight is used for non-GNSS-type terminal equipment to initiate random access. In this way, different types of terminal devices can perform carrier selection based on the above access weights when initiating random access. Specifically, the second carrier is selected by the terminal device based on the carrier's access weight; wherein, each carrier member in the fourth carrier set has a third access weight corresponding to the first type of terminal device and a third access weight corresponding to the second type of terminal The fourth access weight corresponding to the device. Exemplarily, one carrier member in the fourth carrier group has two weights, the access weight corresponding to the GNSS type terminal equipment of this carrier member is 20%, and the access weight corresponding to the non-GNSS type terminal equipment is 80% %, the carrier member can be preferentially used by non-GNSS type terminal equipment. In this way, the access ratios of GNSS-type terminal devices and non-GNSS-type terminal devices can be allocated reasonably, so as to realize load distribution. It can be understood that the carrier access weight configuration information is used to indicate the probability that the terminal device uses the carrier to initiate random access

In step 403, since in the second embodiment, the non-GNSS type terminal device and the GNSS type terminal device can select the same carrier member (for example, the non-GNSS type terminal device and the GNSS type terminal device are both in the fourth carrier group Select the same carrier member) to initiate random access, and the network cannot distinguish the type of the terminal device through the carrier member where the terminal device sends Msg1, so the random access response window cannot be determined. Therefore, in the second embodiment, the type of the terminal device can also be determined based on Msg1. Specifically, the network may pre-configure different random access preambles and/or different random access channel timings for GNSS-type terminal devices and non-GNSS-type terminal devices through system information or RRC dedicated signaling. For example, the network may sending physical random access channel configuration information to the terminal device in advance, where the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access opportunity of the non-GNSS type terminal device, and a second random access preamble and/or a second random access opportunity of a terminal device of the GNSS type, wherein the first random access preamble is different from the second random access preamble, and the first random access opportunity and The timing of the second random access is different. GNSS-type terminal devices and non-GNSS-type terminal devices can select their corresponding random access preambles and/or different random access channel opportunities to send Msg1, and the network sends Msg1 according to the random access preamble and selected by the terminal device. The/or different random access channel opportunities determine the type of the terminal device, that is, whether the terminal device is a GNSS type terminal device or a non-GNSS type terminal device. Exemplarily, a non-GNSS type terminal device may carry the first random access preamble in Msg1 and/or send the above Msg1 at the first random access channel opportunity, and a GNSS type terminal device may carry the second random access preamble in Msg1 Accessing the preamble and/or sending the above Msg1 at a second random access channel opportunity, wherein the first random access preamble is different from the second random access preamble, and the first random access channel opportunity is different from the second random access channel The timing of accessing the channel is different.

Next, the random access method provided by this application is further described through the third embodiment.

The difference between the third embodiment and the first embodiment is:

In step 401, the network does not group the carriers in the cell, but configures the duration value of the first response window and the first offset value for some carriers in the cell, and configures the duration value of the second response window for the remaining carriers. It can be understood that the network can also configure the duration value of the first response window and the first offset value for some carriers in the cell through the first carrier configuration information, and configure the second response window for the remaining carriers through the second carrier configuration information. The duration value of the window.

The non-GNSS type terminal device may select a carrier to initiate random access among the above-mentioned carriers configured with the duration value of the first response window and the first offset value.

For GNSS-type terminal equipment, in one case (assumed to be case 1), a carrier may be selected from the carriers configured with the duration value of the first response window and the first offset value to initiate random access, or A carrier is selected from all carriers in the cell to initiate random access. In another case (assumed to be case 2), a carrier may be selected from the remaining carriers to initiate random access.

For convenience of description, below, the carrier configured with the duration value of the first response window and the first offset value is referred to as a fully configured carrier, and the rest of the carriers are referred to as half configured carriers.

In case 1, for a GNSS-type terminal device, since it can select a fully configured carrier or a semi-configured carrier, the network can configure different access weights for the two carriers to balance the loads of the two carriers. For example, the network device may configure different access weights for two carriers through the carrier group access weight configuration information. The carrier group access weight configuration information may be sent by the network to the terminal device in advance, and the carrier group access weight configuration information may be used to represent the probability that the terminal device uses two carriers to initiate random access. For example, the network may indicate the above two types of carrier access weight configuration information to the terminal device through system information or RRC dedicated signaling. At this time, the second carrier is selected by the terminal device based on the access weights of the two carriers; the fully configured carrier has the first access weight, and the semi-configured carrier has the second access weight. Exemplarily, the network may configure the access weight of GNSS-type terminal equipment on half-configured carriers to be 80%, and the access weight on fully-configured carriers to be 20%. The GNSS-type terminal device can first determine which carrier to choose according to the access weights of the above two carriers. For example, it can select a semi-configured carrier, and then select a suitable carrier from all the semi-configured carriers to initiate random access. It can be understood that the carrier group access weight configuration information is used to indicate the probability that the terminal device uses the carrier group to initiate random access.

In case 1, since the fully-configured carrier can be used by both GNSS-type terminal devices and non-GNSS-type terminal devices, the network can configure two access weights for each carrier member in the fully-configured carrier , the access weight information can also be used to represent the probability that the terminal device uses the carrier to initiate random access, so as to balance the load of the carrier. For example, the network device may configure different access weights for two carriers through carrier access weight configuration information. Wherein, one access weight is used for GNSS-type terminal equipment to initiate random access, and the other access weight is used for non-GNSS-type terminal equipment to initiate random access. In this way, different types of terminal devices can perform carrier selection based on the above access weights when initiating random access. Specifically, the second carrier is selected by the terminal device based on the carrier's access weight; wherein, each carrier member in the fully configured carrier has a third access weight corresponding to the first type of terminal device and a third access weight corresponding to the second type of terminal device The corresponding fourth access weight. Exemplarily, a carrier component in a fully configured carrier has two weights, the access weight corresponding to the GNSS type terminal equipment of the carrier component is 20%, and the access weight corresponding to the non-GNSS type terminal equipment is 80% , then the carrier member can be preferentially used by non-GNSS type terminal equipment. In this way, the access ratios of GNSS-type terminal devices and non-GNSS-type terminal devices can be allocated reasonably, so as to realize load distribution. It can be understood that the carrier access weight configuration information is used to indicate the probability that the terminal device uses the carrier to initiate random access.

In step 403, since in the third embodiment, in case 1, the non-GNSS type terminal device and the GNSS type terminal device can select the same carrier component (for example, a fully configured carrier) to initiate random access, the network cannot pass the terminal The carrier member where the device sends Msg1 distinguishes the type of the terminal device, so that the random access response window cannot be determined. Therefore, in the second embodiment, the type of the terminal device can also be determined based on Msg1. Specifically, the network may pre-configure different random access preambles and/or different random access channel timings for GNSS-type terminal devices and non-GNSS-type terminal devices through system information or RRC dedicated signaling. For example, the network may sending physical random access channel configuration information to the terminal device in advance, where the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access opportunity of the non-GNSS type terminal device, and a second random access preamble and/or a second random access opportunity of a terminal device of the GNSS type, wherein the first random access preamble is different from the second random access preamble, and the first random access opportunity and The timing of the second random access is different. GNSS-type terminal devices and non-GNSS-type terminal devices can select their corresponding random access preambles and/or different random access channel opportunities to send Msg1, and the network sends Msg1 according to the random access preamble and selected by the terminal device. /Or different random access channel opportunities determine the type of the terminal device, that is, whether the terminal device is a GNSS type terminal device or a non-GNSS type terminal device. Exemplarily, a non-GNSS type terminal device may carry the first random access preamble in Msg1 and/or send the above Msg1 at the first random access channel opportunity, and a GNSS type terminal device may carry the second random access preamble in Msg1 Accessing the preamble and/or sending the above Msg1 at a second random access channel opportunity, wherein the first random access preamble is different from the second random access preamble, and the first random access channel opportunity is different from the second random access channel The timing of accessing the channel is different.

Except for the differences described in the above-mentioned Embodiment 2 and Embodiment 3, for other descriptions in Embodiment 2 and Embodiment 3, reference may be made to Embodiment 1, and details are not repeated here.

It can be understood that, in order to realize the above-mentioned functions, the above-mentioned terminal devices and network-side devices include corresponding hardware structures and/or software modules for performing various functions. Those skilled in the art should easily realize that the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the example units and algorithm steps described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the embodiments of the present application.

The embodiment of the present application can divide the functional modules of the above-mentioned terminal equipment and network-side equipment according to the above-mentioned method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

FIG. 5 is a schematic structural diagram of a random access device 50 provided in an embodiment of the present application, which may include: a receiving module 51 and a sending module 52 .

The random access device 50 may be a first-type terminal device or a second-type terminal device, the first-type terminal device does not have GNSS capability, and the second-type terminal device has GNSS capability;

The receiving module 51 is configured to receive the first carrier configuration information and the second carrier configuration information sent by the network side device;

A sending module 52, configured to send a random access request message Msg1 to the network side device;

In the case that the terminal device is a first type of terminal device, then

The receiving module 51 is configured to receive the random access response message Msg2 sent by the network side device based on the first carrier configuration information;

In the case that the terminal device is a second type of terminal device, then

A receiving module 51, configured to receive Msg2 sent by the network side device based on the second carrier configuration information;

In one possible implementation manner, the first carrier configuration information is used to indicate the first offset information and the first response window information corresponding to the first type of terminal equipment, then

The receiving module 51 is also configured to determine the first offset value and the duration value of the first response window based on the first carrier configuration information, determine the first starting position based on the first offset value, and start from the first starting position at The Msg2 sent by the network side device is received within the duration range of the first response window; wherein, the first starting position is used to represent the starting position of the first response window.

In one of the possible implementations,

In the case that the terminal device is a first type of terminal device, then

The sending module 52 is also used to select the first carrier to send Msg1 to the network side device;

In the case that the terminal device is a second type of terminal device, then

The sending module 52 is also configured to select a second carrier to send the Msg1 to the network side device.

In one of the possible implementations,

All carrier components in the first carrier component set form a fourth carrier set, all carrier components in the second carrier component set form a third carrier set, and the second carrier is selected from the third carrier set and/or the fourth carrier set; The first carrier is selected from the fourth carrier set; wherein, the third carrier set is orthogonal to the fourth carrier set.

In one of the possible implementations,

The receiving module 51 is also configured to receive carrier group access weight configuration information or carrier access weight configuration information sent by the network side device; wherein, the carrier group access weight configuration information is used to instruct the terminal device to use the carrier set to initiate random access Probability, the carrier access weight configuration information is used to indicate the probability that the terminal device uses the carrier to initiate random access.

In one of the possible implementations,

The receiving module 51 is also configured to receive physical random access channel configuration information sent by the network side device, where the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access preamble of the first type of terminal device. A random access opportunity, and a second random access preamble and/or a second random access opportunity of the second type of terminal equipment.

In one of the possible implementations,

FIG. 6 is a schematic structural diagram of a random access device 60 provided by an embodiment of the present application, which may include: a sending module 61 , a receiving module 62 , and a processing module 63 , and other modules may perform corresponding actions under the control of the processing module 62 . The random access device 60 may be a network side device, then:

A sending module 61, configured to send the first carrier configuration information and the second carrier configuration information to the terminal device;

A receiving module 62, configured to receive the Msg1 sent by the terminal device

The processing module 63 is configured to determine the type of the terminal device based on Msg1, the terminal device is a first type terminal device or a second type terminal device, the first type terminal device does not have GNSS capability, and the second type terminal device has GNSS capability;

When the type of the terminal device is the first type of terminal device, the processing module 63 is further configured to determine the duration value of the first response window based on the type of the terminal device; wherein, the first response window is used to characterize the duration of the first type of terminal device Random access response window;

A sending module 61, configured to send Msg2 to the terminal device based on the duration value of the first response window;

In one of the possible implementations,

If the terminal device is the first type of terminal device, the receiving module 62 is specifically configured to receive the Msg1 sent by the terminal device on the first carrier;

If the terminal device is a second type of terminal device, the receiving module 62 is specifically configured to receive the Msg1 sent by the terminal device on the second carrier.

In one possible implementation manner, all carrier members in the first carrier member set form the first carrier set, the first carrier is selected from the first carrier set, and all carrier members in the second carrier member set form the second carrier set, the second carrier is selected from the second carrier set, the first carrier set is orthogonal to the second carrier set, the first carrier is different from the second carrier, and the processing module 63 is also used to locate the carrier member based on Msg1 The set of carriers determines the type of end device.

In one of the possible implementations,

The sending module 61 is further configured to send physical random access channel configuration information to the terminal device; wherein the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access preamble of the first type of terminal device Access opportunity, and second random access preamble and/or second random access opportunity of the second type of terminal equipment, the first random access preamble and the second random access preamble are different, the first random access The timing is different from the second random access timing.

In one possible implementation manner, the processing module 63 is further configured to determine the type of the terminal device based on the random access opportunity used by the terminal device to send Msg1 and/or the random access preamble included in Msg1.

In one of the possible implementations,

The sending module 61 is further configured to send carrier group access weight configuration information or carrier access weight configuration information to the terminal device; wherein, the carrier group access weight configuration information is used to indicate the probability that the terminal device uses the carrier set to initiate random access, The carrier access weight configuration information is used to indicate the probability that the terminal device uses the carrier to initiate random access.

In one of the possible implementations,

The sending module 61 is also configured to send the preset first reference value to the terminal device;

In one of the possible implementations,

A sending module 61, configured to send a preset second reference value to the terminal device;

In one possible implementation manner, the first offset information includes a first offset value corresponding to each carrier member in the first carrier member set;

Wherein, the first offset value corresponding to each carrier member in the first carrier member set is based on the distance between the position closest to the satellite and the network side device in the coverage area of the beam associated with the carrier member in the first carrier member set The round-trip propagation delay is determined.

FIG. 7 is a schematic structural diagram of a random access apparatus 700 provided in an embodiment of the present application. The random access apparatus 700 may include: at least one processor; and at least one memory communicatively connected to the processor. The foregoing random access apparatus 700 may be a network side device or a terminal device. The memory stores program instructions that can be executed by the processor. If the random access device 700 is a network-side device, the processor calls the program instructions to execute the network-side device in the random access method provided by the embodiment of the present application. If the random access apparatus 700 is a terminal device, the processor can call the above program instructions to execute the actions performed by the terminal device in the random access method provided by the embodiment of the present application.

As shown in FIG. 7, the random access apparatus 700 is represented in the form of a general-purpose computing device. The components of the random access device 700 may include, but are not limited to: one or more processors 710, a memory 720, a communication bus 740 and a communication interface 730 connecting different system components (including the memory 720 and the processor 710).

Communication bus 740 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (Industry Standard Architecture; hereinafter referred to as: ISA) bus, Micro Channel Architecture (Micro Channel Architecture; hereinafter referred to as: MAC) bus, enhanced ISA bus, video electronics Standards Association (Video Electronics Standards Association; hereinafter referred to as: VESA) local bus and Peripheral Component Interconnection (hereinafter referred to as: PCI) bus.

Random access device 700 typically includes various computer system readable media. These media can be any available media that can be accessed by the random access device 700, including volatile and non-volatile media, removable and non-removable media.

The memory 720 may include a computer system-readable medium in the form of a volatile memory, such as a random access memory (Random Access Memory; hereinafter referred to as RAM) and/or a cache memory. The random access device 700 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. Although not shown in FIG. 7, a disk drive for reading and writing to a removable nonvolatile disk (such as a "floppy disk") may be provided, as well as a disk drive for removable nonvolatile disks (such as a CD-ROM (Compact Disc Read Only Memory; hereinafter referred to as: CD-ROM), Digital Video Disc Read Only Memory (hereinafter referred to as: DVD-ROM) or other optical media). In these cases, each drive may be connected to communication bus 740 through one or more data media interfaces. The memory 720 may include at least one program product having a set (for example, at least one) of program modules configured to execute the functions of the various embodiments of the present application.

A program/utility having a set (at least one) of program modules may be stored in memory 720, such program modules including - but not limited to - an operating system, one or more application programs, other program modules, and program data , each or some combination of these examples may include implementations of network environments. The program modules generally perform the functions and/or methods in the embodiments described herein.

The random access device 700 may also communicate with one or more external devices (such as keyboards, pointing devices, displays, etc.), and may also communicate with one or more devices that enable the user to interact with the random access device 700, and/or Or communicate with any device (such as network card, modem, etc.) that enables the random access device 700 to communicate with one or more other computing devices. Such communication may occur through communication interface 730 . Moreover, the random access device 700 can also communicate with one or more networks (such as a local area network (Local Area Network; hereinafter referred to as: LAN), a wide area network (Wide Area Network; hereinafter referred to as: WAN) through a network adapter (not shown in FIG. ) and/or a public network, such as the Internet, the above-mentioned network adapter can communicate with other modules of the electronic device through the communication bus 740 . It should be appreciated that although not shown in FIG. 7 , other hardware and/or software modules may be used in conjunction with random access device 700, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Redundant Arrays of Independent Drives; hereinafter referred to as: RAID) system, tape drive and data backup storage system, etc.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated according to needs It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not repeated here.

Each functional unit in each embodiment of the embodiment of the present application may be integrated into one processing unit, or each unit may physically exist separately, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage The medium includes several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: flash memory, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk, and other various media capable of storing program codes.

The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application should be covered within the protection scope of the application . Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A random access method, applied to a terminal device, the terminal device is a first-type terminal device or a second-type terminal device, the first-type terminal device does not have GNSS capability, and the second-type terminal device Having GNSS capability, it is characterized in that the method comprises:

receiving the first carrier configuration information and the second carrier configuration information sent by the network side device;

Send a random access request message Msg1 to the network side device;

If the terminal device is a first type terminal device, receiving a random access response message Msg2 sent by the network side device based on the first carrier configuration information;

If the terminal device is a second type of terminal device, receiving Msg2 sent by the network side device based on the second carrier configuration information;

Wherein, the first carrier configuration information is used to indicate the first offset information and/or first response window information corresponding to the first type of terminal equipment; the second carrier configuration information is used to indicate the Second response window information corresponding to the second type of terminal device.
The method according to claim 1, wherein the terminal device is a first type of terminal device,

The first carrier configuration information is used to indicate the first offset information and/or first response window information corresponding to the first type of terminal device specifically includes:

The first carrier configuration information is used to indicate first offset information and first response window information corresponding to the first type of terminal equipment;

The receiving the Msg2 sent by the network side device based on the first carrier configuration information includes:

Determine a first offset value and a duration value of the first response window based on the first carrier configuration information, determine a first starting position based on the first offset value, and start from the first starting position , receiving the Msg2 sent by the network side device within the duration range of the first response window; wherein the first starting position is used to characterize the starting position of the first response window.
The method according to claim 2, characterized in that,

The first carrier configuration information includes first carrier component set information, first offset information corresponding to the first carrier component set, and first response window information corresponding to the first carrier component set, the The first carrier member set information includes one or more carrier member indexes; the second carrier configuration information includes second carrier member set information, and the second carrier member set information includes one or more carrier member indexes.
The method according to claim 3, characterized in that,

The first response window information includes the duration value of the unique first response window corresponding to the first carrier member set; or,

The first response window information includes a duration value of a first response window corresponding to each carrier component in the first carrier component set.
The method according to claim 3 or 4, characterized in that,

The first offset information includes a unique first offset value corresponding to the first carrier member set; or,

The first offset information includes a unique first offset difference value corresponding to the first carrier component set; wherein, the unique first offset difference value corresponds to the first carrier component set The difference between the unique first offset value and the preset first reference value.
The method according to claim 3 or 4, characterized in that,

The first offset information includes a first offset value corresponding to each carrier member in the first set of carrier members; or,

The first offset information includes a first offset difference corresponding to each carrier member in the first carrier component set; wherein, the first offset corresponding to a carrier component in the first carrier component set The offset difference value is a difference between the first offset value corresponding to the carrier component in the first carrier component set and the preset second reference value.
The method according to claim 3 or 4, characterized in that,

The first offset information includes a unique first offset value corresponding to the first carrier component set and a second offset difference value corresponding to each carrier component in the first carrier component set; Wherein, the second offset difference value corresponding to a carrier member in the first carrier component set is relative to the unique first offset value of the first offset value of the carrier component in the first carrier component set The difference in displacement values.
The method according to any one of claims 3-7, wherein the sending Msg1 to the network side device comprises:

If the terminal device is a first-type terminal device, select a first carrier to send Msg1 to the network side device;

If the terminal device is a second-type terminal device, select a second carrier to send Msg1 to the network side device.
The method according to claim 8, characterized in that,

All carrier members in the first carrier member set form a first carrier set, the first carrier is selected from the first carrier set, and all carrier members in the second carrier member set form a second carrier set , the second carrier is selected from the second carrier set; wherein, the first carrier set is orthogonal to the second carrier set, and the first carrier is different from the second carrier.
The method according to claim 8, characterized in that,

All carrier components in the first carrier component set form a fourth carrier set, all carrier components in the second carrier component set form a third carrier set, and the second carrier is in the third carrier set and/or or selected from the fourth carrier set; the first carrier is selected from the fourth carrier set; wherein, the third carrier set is orthogonal to the fourth carrier set.
The method according to claim 10, characterized in that the method further comprises:

Receive carrier group access weight configuration information or carrier access weight configuration information sent by the network side device; wherein the carrier group access weight configuration information is used to indicate the probability that the terminal device uses a carrier set to initiate random access , the carrier access weight configuration information is used to indicate the probability that the terminal device uses a carrier to initiate random access.
The method according to claim 11, characterized in that,

The second carrier is selected by the terminal device based on an access weight of a carrier set; wherein, the third carrier set has a first access weight, and the fourth carrier set has a second access weight; or,

The second carrier is selected by the terminal device based on the carrier's access weight; wherein, each carrier member in the fourth carrier set has a third access weight corresponding to the first type of terminal device and A fourth access weight corresponding to the second type of terminal device.
The method according to any one of claims 10-12, wherein the method further comprises:

receiving physical random access channel configuration information sent by the network side device, where the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access preamble of the first type terminal device A random access opportunity, and a second random access preamble and/or a second random access opportunity of the second type of terminal equipment.
The method according to claim 13, characterized in that,

If the terminal device is a first-type terminal device, the random access preamble and/or random access opportunity used by the terminal device is the first random access preamble and/or the first random access timing; or,

If the terminal device is a second type of terminal device, the random access preamble and/or random access opportunity used by the terminal device is the second random access preamble and/or the second random access opportunity;

Wherein, the first random access preamble is different from the second random access preamble, and the first random access opportunity is different from the second random access opportunity.
A random access method applied to a terminal device, characterized in that the method includes:

If the terminal device is the first type of terminal device, the terminal device selects the first carrier to send Msg1 to the network side device; wherein the first carrier has a duration value of the first response window corresponding to the first carrier and a first offset value, the first response window is used to characterize the random access response window of the first type of terminal device, and the first type of terminal device does not have GNSS capability;

The terminal device determines a first starting position based on the first offset value, and receives, from the first starting position, within the duration range of the first response window, the random Access response message Msg2; wherein, the first starting position is used to represent the starting position of the first response window.
A random access method applied to a terminal device, characterized in that the method includes:

If the terminal device is a second type of terminal device, the terminal device selects a second carrier to send Msg1 to the network side device; wherein, the second carrier has a duration value of a second response window corresponding to the second carrier , the second response window is used to characterize the random access response window of the second type of terminal device, and the second type of terminal device has GNSS capability;

The terminal device acquires a second starting position, and from the second starting position, receives the Msg2 sent by the network-side device within the duration of the second response window; the second starting position is used to characterize the starting position of the second response window.
A random access method applied to network side equipment, characterized in that the method includes:

sending the first carrier configuration information and the second carrier configuration information to the terminal device;

Receive Msg1 sent by the terminal device;

Determine the type of the terminal device based on the Msg1, the terminal device is a first type terminal device or a second type terminal device, the first type terminal device does not have GNSS capability, and the second type terminal device has GNSS ability;

If the type of the terminal device is the first type of terminal device, determine the duration value of the first response window based on the type of the terminal device; wherein, the first response window is used to characterize the randomness of the first type of terminal device access response window;

sending Msg2 to the terminal device based on the duration value of the first response window;

Wherein, the first carrier configuration information is used to indicate the first offset information and/or first response window information corresponding to the first type of terminal equipment; the second carrier configuration information is used to indicate the Second response window information corresponding to the second type of terminal device.
The method according to claim 17, further comprising:

The first carrier configuration information includes first carrier component set information, first offset information corresponding to the first carrier component set, and first response window information corresponding to the first carrier component set, the The first carrier member set information includes one or more carrier member indexes; the second carrier configuration information includes second carrier member set information, and the second carrier member set information includes one or more carrier member indexes.
The method of claim 18, wherein,

If the terminal device is a first type terminal device, receiving the Msg1 sent by the terminal device includes: receiving the Msg1 sent by the terminal device on the first carrier;

If the terminal device is a second-type terminal device, receiving the Msg1 sent by the terminal device includes: receiving the Msg1 sent by the terminal device on a second carrier.
The method according to claim 19, wherein all carrier components in the first carrier component set form a first carrier set, the first carrier is selected from the first carrier set, and the second All carrier components in the carrier component set form a second carrier set, the second carrier is selected from the second carrier set, the first carrier set is orthogonal to the second carrier set, and the first carrier Different from the second carrier, the determining the type of the terminal device based on the Msg1 includes:

Determine the type of the terminal device based on the carrier set where the carrier member used by the Msg1 is located.
The method according to claim 19, wherein all the carrier components in the first carrier component set form a fourth carrier set, and all the carrier components in the second carrier component set form a third carrier set, so The first carrier is selected from the fourth carrier set, the second carrier is selected from the third carrier set and/or the fourth carrier set, the third carrier set and the fourth carrier The set is orthogonal.
The method according to claim 21, further comprising:

Sending physical random access channel configuration information to the terminal device; wherein the physical random access channel configuration information is used to configure the first random access preamble and/or the first random access channel of the first type of terminal device an entry opportunity, and a second random access preamble and/or a second random access opportunity of the second type of terminal device, the first random access preamble is different from the second random access preamble, The first random access opportunity is different from the second random access opportunity.
The method according to claim 22, wherein the determining the type of the terminal device based on the Msg1 comprises:

Determine the type of the terminal device based on the random access opportunity used by the terminal device to send the Msg1 and/or the random access preamble included in the Msg1.
The method according to any one of claims 21-23, further comprising:

Sending carrier group access weight configuration information or carrier access weight configuration information to the terminal device; wherein the carrier group access weight configuration information is used to indicate the probability that the terminal device uses a carrier set to initiate random access, and the The carrier access weight configuration information is used to indicate the probability that the terminal device uses a carrier to initiate random access.
The method according to any one of claims 18-24, wherein,

The first response window information includes the duration value of the unique first response window corresponding to the first carrier member set; or,

The first response window information includes a duration value of a first response window corresponding to each carrier component in the first carrier component set.
The method according to any one of claims 18-25, further comprising:

sending a preset first reference value to the terminal device;

Wherein, the first offset information includes the unique first offset difference value corresponding to the first carrier component set; the unique first offset difference value corresponds to the first carrier component set The difference between the unique first offset value and the preset first reference value.
The method according to any one of claims 18-25, wherein,

The first offset information includes the unique first offset value corresponding to the first carrier member set; the unique first offset value is based on the location closest to the satellite in the cell coverage area and the The round-trip propagation delay between network-side devices is determined.
The method according to any one of claims 18-25, further comprising:

sending a preset second reference value to the terminal device;

Wherein, the first offset information includes a first offset difference value corresponding to each carrier member in the first carrier member set; the first offset difference corresponding to a carrier member in the first carrier member set The offset difference value is a difference between the first offset value corresponding to the carrier component in the first carrier component set and the preset second reference value.
The method according to any one of claims 18-25, wherein,

The first offset information includes a first offset value corresponding to each carrier member in the first set of carrier members;

Wherein, the first offset value corresponding to each carrier member in the first carrier member set is based on the closest position to the satellite in the coverage area of the beam associated with the carrier member in the first carrier member set and the The round-trip propagation delay between network-side devices is determined.
The method according to any one of claims 18-25, wherein,

The first offset information includes a unique first offset value corresponding to the first carrier component set and a second offset difference value corresponding to each carrier component in the first carrier component set; Wherein, the second offset difference value corresponding to a carrier member in the first carrier component set is relative to the unique first offset value of the first offset value of the carrier component in the first carrier component set The difference in displacement values.
A chip, characterized by being used to execute the method according to any one of claims 1-30.
A terminal device, characterized in that it includes: a memory, the memory is used to store computer program codes, the computer program codes include instructions, when the terminal device reads the instructions from the memory, so that the The terminal device executes the method according to any one of claims 1-16.
A network-side device, characterized in that it includes: a memory, the memory is used to store computer program codes, the computer program codes include instructions, and when the network-side device reads the instructions from the memory, the making the network side device execute the method according to any one of claims 17-30.
A computer-readable storage medium, characterized in that it includes computer instructions, and when the computer instructions are run on a computer, the computer is made to execute the method according to any one of claims 1-16, or to execute A method as claimed in any one of claims 17-30.