CN115669150A

CN115669150A - Information reporting method, information processing method, terminal equipment and network equipment

Info

Publication number: CN115669150A
Application number: CN202080101239.1A
Authority: CN
Inventors: 徐伟杰; 左志松
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2023-01-31
Also published as: WO2022027684A1

Abstract

The application relates to an information reporting method, an information processing method, a terminal device and a network device. The information reporting method comprises the following steps: and the terminal equipment reports the antenna configuration, and the antenna configuration is used for indicating the antenna gain related parameters and/or the number of antennas of the terminal equipment. In the embodiment of the application, the antenna configuration of the terminal device, including the number of antennas and/or the antenna gain related parameters, is reported, so that the network device can be assisted to perform corresponding configuration or operation based on the characteristics of the terminal device, and the terminal device is ensured to normally work.

Description

Information reporting method, information processing method, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and in particular, to an information reporting method, an information processing method, a terminal device, and a network device.

Background

Under the continuous evolution and assistance of wireless communication technology, the Internet of Things (IoT) technology is rapidly developing. As the development of MTC (Machine-Type Communication)/eMTC (LTE enhanced MTC) promoted by 3GPP (3 rd Generation Partnership Project) organization, NB-IoT (Narrow Band Internet of Things) series standard becomes a candidate technology standard for 5G massive MTC technology. The technical standards are expected to play a great role in the aspects of production and life of people such as smart homes, smart cities, smart factories, remote monitoring, smart traffic and the like. The MTC/eMTC and NB-IoT terminals have the technical advantages of low cost, low price, support of ultra-low power consumption, support of deep and wide coverage scenes and the like. Therefore, the method is beneficial to the rapid popularization of the development initial stage of the Internet of things technology. However, these technologies also have some application scenario limitations, and since MTC/eMTC and NB-IoT support some low data rate and high transmission delay applications, they cannot be applied in some internet of things scenarios requiring relatively high data rate, such as video monitoring in smart security and industrial applications requiring relatively low delay. However, if a New Radio (NR) terminal is directly adopted, the cost is relatively high because the design indexes of the NR terminal, such as transmission rate and transmission delay, far exceed the actual requirements of these scenarios.

In order to improve a terminal system of a 5G massive MTC scenario, an NR MTC terminal type that supports medium transmission rate and medium delay requirements and has a low cost may be designed, and currently, 3GPP refers to this NR MTC type terminal as a Reduced Capability NR terminal. A recap terminal has some different characteristics compared to a normal NR terminal, and the network cannot adaptively make decisions or configure for the characteristics of different terminals.

Disclosure of Invention

The embodiment of the application provides an information reporting method, an information processing method, a terminal device and a network device, which can assist the network device in making a decision or configuring through antenna configuration of the reporting terminal device.

An embodiment of the present application provides an information reporting method, including: and the terminal equipment reports the antenna configuration, and the antenna configuration is used for indicating the antenna gain related parameters and/or the number of the antennas of the terminal equipment.

An embodiment of the present application provides an information processing method, including: the network device receives an antenna configuration indicating antenna gain related parameters and/or the number of antennas of the terminal device.

An embodiment of the present application provides a terminal device, including: and the reporting unit is used for reporting the antenna configuration, and the antenna configuration is used for indicating the antenna gain related parameters and/or the number of antennas of the terminal equipment.

An embodiment of the present application provides a network device, including: the terminal device comprises a receiving unit, a calculating unit and a processing unit, wherein the receiving unit is used for receiving antenna configuration which is used for indicating antenna gain related parameters and/or antenna number of the terminal device.

The embodiment of the application provides terminal equipment which comprises a processor and a memory. The memory is used for storing computer programs, and the processor is used for calling and running the computer programs stored in the memory, so that the terminal equipment can execute the information reporting method.

An embodiment of the application provides a network device, which includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory so as to enable the network equipment to execute the information processing method.

The embodiment of the application provides a chip for implementing the information reporting method or the information processing method. Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the information reporting method or the information processing method.

An embodiment of the present application provides a computer-readable storage medium, configured to store a computer program, and when the computer program is executed by a device, the device executes the information reporting method or the information processing method.

An embodiment of the present application provides a computer program product, which includes computer program instructions, where the computer program instructions enable a computer to execute the information reporting method or the information processing method.

The embodiment of the present application provides a computer program, which when running on a computer, enables the computer to execute the information reporting method or the information processing method.

According to the embodiment of the application, the antenna configuration of the terminal equipment is reported, and the antenna configuration comprises the number of antennas and/or the antenna gain related parameters, so that the network equipment can be assisted to perform corresponding configuration or operation based on the characteristics of the terminal equipment, and the terminal equipment such as a RedCap terminal can be ensured to normally work in an NR system.

Drawings

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

Fig. 2 is a schematic flow chart of an information reporting method according to an embodiment of the present application.

Fig. 3 is a schematic flow chart of an information processing method according to an embodiment of the present application.

Fig. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a terminal device according to another embodiment of the present application.

Fig. 6 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a network device according to another embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a chip according to an embodiment of the application.

Fig. 10 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

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.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global System for Mobile communications (GSM) System, code Division Multiple Access (CDMA) System, wideband Code Division Multiple Access (WCDMA) System, general Packet Radio Service (GPRS), long Term Evolution (Long Term Evolution, LTE) System, LTE-a System, new Radio (NR) System, evolution System of NR System, LTE-based Access to unlicensed spectrum, LTE-U) System, NR-based to unlicensed spectrum (NR-U) System, non-Terrestrial communication network (NTN) System, universal Mobile Telecommunications System (UMTS), wireless Local Area Network (WLAN), wireless Fidelity (WiFi), 5th-Generation (5G) System, or other communication systems.

Generally, the conventional Communication system supports a limited number of connections and is easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication but also, for example, device to Device (D2D) Communication, machine to Machine (M2M) Communication, machine Type Communication (MTC), vehicle to Vehicle (V2V) Communication, or Vehicle to internet (V2X) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, may also be applied to a Dual Connectivity (DC) scenario, and may also be applied to an independent (SA) networking scenario.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; alternatively, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where the licensed spectrum may also be regarded as an unshared spectrum.

Various embodiments are described in connection with a network device and a terminal device, where the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment.

The terminal device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next generation communication system such as an NR Network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, and so on.

In the embodiment of the application, the terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.).

In this embodiment, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in city (smart city), a wireless terminal device in smart home (smart home), or the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of equipment that uses wearable technique to carry out intelligent design, develop can dress to daily wearing, such as glasses, gloves, wrist-watch, dress and shoes. The wearable device may be worn directly on the body or may be a portable device integrated into the user's clothing or accessory. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay Station or an Access Point, a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a PLMN network for future evolution, or a network device in an NTN network.

By way of example and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a Medium Earth Orbit (MEO) satellite, a geosynchronous Orbit (GEO) satellite, a High Elliptic Orbit (HEO) satellite, and the like. Alternatively, the network device may be a base station installed on land, water, or the like.

In this embodiment, a network device may provide a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

Fig. 1 schematically illustrates a communication system 100. The communication system comprises one network device 110 and two terminal devices 120. Optionally, the communication system 100 may include a plurality of network devices 110, and each network device 110 may include another number of terminal devices 120 within a coverage area, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a Mobility Management Entity (MME), an Access and Mobility Management Function (AMF), which is not limited in this embodiment. The network device may further include an access network device and a core network device. I.e. the wireless communication system further comprises a plurality of core networks for communicating with the access network devices. The access network device may be a long-term evolution (LTE) system, a Next Radio (NR) system, or an evolved base station (evolved Node B) in an authorized assisted access long-term evolution (LAA-LTE) system, such as an eNB or an e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), or a new generation base station (g-NodeB).

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system shown in fig. 1 as an example, the communication device may include a network device and a terminal device that have a communication function, and the network device and the terminal device may be specific devices in the embodiment of the present application and are not described herein again; the communication device may further include other devices in the communication system, for example, other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

It should be understood that "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication of an association relationship. For example, a indicates B, which may mean that a directly indicates B, e.g., B may be obtained by a; it may also mean that a indicates B indirectly, for example, a indicates C, and B may be obtained by C; it can also mean that there is an association between a and B.

In the description of the embodiments of the present application, the term "correspond" may indicate that there is a direct correspondence or an indirect correspondence between the two, may also indicate that there is an association between the two, and may also indicate and be indicated, configure and configured, and so on.

For the convenience of understanding of the technical solutions of the embodiments of the present application, the following related technologies of the embodiments of the present application are described below, and the following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as alternatives, and all of them belong to the protection scope of the embodiments of the present application.

At present, an NR terminal needs to support at least 2 receiving channels, and an NR terminal on some frequency bands needs to support 4 receiving channels; each receiving channel includes a receiving antenna, a filter, a Power Amplifier (PA), an Analog Digital (AD) sampler, and other components. Therefore, reducing the number of radio frequency channels that an NR terminal needs to be equipped with will significantly reduce the cost of the terminal. The cost of the chip module can be reduced by about 1/3 by reducing the terminal with two radio frequency channels into one radio frequency channel. The reccap terminal can be equipped with a smaller number of antennas for reducing the cost of the terminal. Similarly, the method that can reduce the cost of the terminal further includes reducing the bandwidth of the terminal, reducing the processing speed requirement of the terminal, and so on.

The antenna gain loss of the red cap terminal is described below. A typical application scenario of a RedCap terminal is an intelligent wearable device, such as a smart watch. Limited by the size of the smart wearable device, the antenna size of such terminals is typically smaller than that of conventional NR terminals, and thus the antenna gain of a red map terminal is lost compared to a conventional NR terminal. Typically, the antenna loss of such a red cap terminal will be above 3dB.

Since a reccap terminal has some different characteristics from a conventional NR terminal, different types of reccap terminals may also have some different characteristics. The terminal in the embodiment of the application can report the characteristics of the terminal, such as antenna configuration, to the network, so that the network can adaptively make scheduling decisions or resource configuration and the like based on the characteristics of different terminals.

Fig. 2 is a schematic flow chart of an information reporting method 200 according to an embodiment of the present application. The method may alternatively be applied to the system shown in fig. 1, but is not limited thereto. The method includes at least part of the following.

And S210, the terminal equipment reports the antenna configuration, and the antenna configuration is used for indicating the antenna gain related parameters and/or the number of antennas of the terminal equipment.

In this embodiment, there may be a plurality of terminal types, such as a normal NR terminal, a red cp terminal, and the like. Different types of terminal devices may have different antenna configurations such as antenna gain related parameters and/or number of antennas. The terminal device reports the antenna configuration to the network device, and the network device can determine whether to adjust the transmission performance based on the antenna configuration after receiving the antenna configuration. For example, the number of receiving antennas supported by the red beacon terminal is smaller than the number of receiving antennas supported by the NR terminal, which affects the receiving performance of the downlink signal.

Optionally, in an embodiment of the present application, the antenna gain related parameter includes at least one of:

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.

Illustratively, the antenna gain may be expressed in terms of a ratio of the maximum radiation intensity in a given direction to the maximum radiation intensity of the antenna.

Optionally, in this embodiment of the present application, the reporting, by the terminal device, the antenna configuration includes: and the terminal equipment reports the antenna configuration by sending the preamble.

In particular, the preamble (preamble), which may also be referred to as a preamble or a random access preamble, may be used to identify the identity of the terminal device at the time of random access. The terminal equipment sends a preamble to the network equipment, and the antenna configuration can be reported through the preamble network equipment.

Optionally, in an embodiment of the present application, the method further includes at least one of:

the terminal equipment receives the corresponding relation between the preamble and the antenna configuration;

and the terminal equipment receives the corresponding relation between the physical random access channel PRACH resource and the antenna configuration.

For example, the terminal device may receive the corresponding relationship between the preamble and the antenna configuration from the network device, and then the terminal device searches for the corresponding preamble according to its own antenna configuration. For example, the antenna configuration is 1 receive antenna and the antenna gain of NdB, and the corresponding preamble is preamble packet 1. The terminal device may send the preamble packet 1 to the network device.

For example, the terminal device may receive a corresponding relationship between the PRACH resource and the antenna configuration from the network device, and then the terminal device searches for a corresponding PRACH resource guide according to its own antenna configuration. For example, the antenna configuration is an antenna gain of NdB, and the corresponding PRACH resource is X. The terminal device may send the preamble format corresponding to the PRACH resource X to the network device as 1-a.

Optionally, in this embodiment of the present application, a correspondence between the preamble and the antenna configuration includes at least one of:

a correspondence of preamble packets to antenna configurations;

the corresponding relation between the preamble format and the antenna configuration.

Exemplarily, preambles included in PRACH resources may be grouped. For example, if the PRACH resources include 48 preambles. Preambles 0-11 belong to preamble packet 1, preambles 12-23 belong to preamble packet 2, preambles 24-35 belong to preamble packet 3, and preambles 36-48 belong to preamble packet 4. The corresponding relationship between the preamble packet and the antenna configuration may include: the leader packet 1 corresponds to 1 antenna, and the antenna gain is 0dB; the antenna gain corresponding to the leading group 2 is 3dB, the antenna gain corresponding to the leading group 2 is 5dB, the leading group 2 corresponds to 2 antennas, and the antenna gain is 3dB.

For example, there are multiple preamble formats, and antenna configurations corresponding to different preamble formats may be set. For example: the preamble format 1-A corresponds to 1 antenna, and the antenna gain is 0dB; preamble format 1-B corresponds to 2 antennas with an antenna gain of 3dB.

Optionally, in this embodiment of the present application, different antenna configurations correspond to different preamble packets or preamble formats; or, different antenna configurations correspond to different PRACH resources.

Optionally, in this embodiment of the present application, different PRACH resources correspond to different preamble formats or different preamble repetition times. Therefore, after the PRACH resources configured by the antenna are determined by the terminal device, a preamble format or different preamble repetition times corresponding to the PRACH resources may be determined.

Illustratively, PRACH resource 1 corresponds to a preamble format of 1-a, and PRACH resource 2 corresponds to a preamble format of 1-B.

Exemplarily, PRACH resource 3 corresponds to 6 preamble repetitions, and PRACH resource 4 corresponds to 3 preamble repetitions.

Optionally, in an embodiment of the present application, the method further includes: and the terminal equipment measures to obtain the strength of the downlink reference signal of the cell.

Optionally, in an embodiment of the present application, the method further includes: and selecting the preamble of the first format under the condition that the measured downlink reference signal strength of the cell is smaller than a first threshold value.

Optionally, in an embodiment of the present application, the method further includes: selecting a preamble of a second format in a case that the downlink reference signal strength is greater than or equal to a first threshold, wherein a length of the preamble of the second format is smaller than a length of the preamble of the first format.

In one case, the terminal device may decide the selected preamble format directly according to the downlink reference signal strength and the threshold. For example, the terminal device selects preamble format 1-a based on the case where the downlink reference signal strength is greater than the first threshold, and selects preamble format 1-B based on the case where the downlink reference signal strength is less than or equal to the first threshold.

In another case, the terminal device may decide the selected preamble format in combination with the antenna configuration, the downlink reference signal strength, and the threshold. For example, the terminal device may correspond to two preamble formats based on the same antenna configuration, and select preamble format 2-a when the downlink reference signal strength is greater than a first threshold, and select preamble format 2-B when the downlink reference signal strength is less than or equal to the first threshold.

Optionally, in an embodiment of the present application, the method further includes: and selecting the first random access resource under the condition that the strength of the downlink reference signal is smaller than a second threshold value.

Optionally, in an embodiment of the present application, the method further includes:

and selecting a second random access resource under the condition that the downlink reference signal strength is greater than or equal to a second threshold value, wherein the preamble transmission times corresponding to the second random access resource are less than the preamble transmission times corresponding to the first random access resource.

In one case, the terminal device may decide the selected random access resource directly according to the downlink reference signal strength and the threshold. For example, the terminal device selects the first random access resource 3-a when the downlink reference signal strength is greater than the second threshold, and selects the first random access resource 3-B when the downlink reference signal strength is less than or equal to the second threshold.

In another case, the terminal device may determine the selected random access resource according to the antenna configuration, the downlink reference signal strength, and the threshold. For example, the terminal device may correspond to two random access resources based on the same antenna configuration, and select the first random access resource 4-a when the downlink reference signal strength is greater than the second threshold, and select the second random access resource 4-B when the downlink reference signal strength is less than or equal to the second threshold.

Optionally, in an embodiment of the present application, the method further includes: the terminal device measures the downlink path loss (i.e., path loss).

Optionally, in an embodiment of the present application, the method further includes: in a case where the downlink path loss is greater than a third threshold, a preamble of a third format is selected.

Optionally, in an embodiment of the present application, the method further includes: and selecting a preamble of a fourth format when the downlink path loss is less than or equal to a third threshold, wherein the length of the preamble of the fourth format is less than that of the preamble of the third format.

In one case, the terminal device may decide the selected preamble format directly according to the downlink path loss and the threshold. For example, the terminal device selects preamble format 5-a when the downlink loss is greater than the third threshold, and selects preamble format 5-B when the downlink loss is less than or equal to the third threshold.

In another case, the terminal device may determine the selected preamble format according to the antenna configuration, the downlink path loss and the threshold. For example, the terminal device may correspond to two preamble formats based on the same antenna configuration, and select the preamble format 6-a when the downlink loss is greater than the third threshold, and select the preamble format 6-B when the downlink loss is less than or equal to the third threshold.

Optionally, in an embodiment of the present application, the method further includes: and selecting a third random access resource under the condition that the downlink path loss is greater than a fourth threshold value.

Optionally, in an embodiment of the present application, the method further includes: and selecting a fourth random access resource under the condition that the downlink path loss is less than or equal to a fourth threshold, wherein the transmission times of the fourth random access resource are less than the transmission times of the third random access resource.

In one case, the terminal device may decide the selected random access resource directly according to the downlink path loss and the threshold. For example, the terminal device selects the first random access resource 7-a when the downlink loss is greater than the fourth threshold, and selects the first random access resource 7-B when the downlink loss is less than or equal to the fourth threshold.

In another case, the terminal device may determine the selected random access resource according to the antenna configuration, the downlink path loss and the threshold. For example, the terminal device may correspond to two random access resources based on the same antenna configuration, select the third random access resource 8-a when the downlink path loss is greater than the fourth threshold, and select the fourth random access resource 8-B when the downlink path loss is less than or equal to the fourth threshold.

FIG. 3 is a schematic flow chart diagram of an information processing method 300 according to an embodiment of the present application. The method may alternatively be applied to the system shown in fig. 1, but is not limited thereto. The method includes at least part of the following.

S310, the network equipment receives antenna configuration which is used for indicating antenna gain related parameters and/or antenna number of the terminal equipment.

Optionally, in this embodiment of the present application, the antenna gain related parameter includes at least one of:

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.

Optionally, in this embodiment of the present application, the receiving, by the network device, the antenna configuration includes:

and the network equipment receives the preamble and acquires the antenna configuration of the terminal equipment corresponding to the preamble.

the network equipment sends the corresponding relation between the preamble and the antenna configuration;

and the network equipment sends the corresponding relation between the physical random access channel PRACH resource and the antenna configuration.

Optionally, in this embodiment of the present application, the correspondence between the preamble and the antenna configuration includes at least one of the following:

a correspondence of preamble packets to antenna configurations;

the preamble format corresponds to the antenna configuration.

Optionally, in this embodiment, different antenna configurations correspond to different preamble packets or preamble formats.

Optionally, in this embodiment of the present application, different PRACH resources correspond to different preamble formats or different preamble repetition times.

the network equipment transmits at least one of the first threshold value, the second threshold value, the third threshold value and the fourth threshold value;

the first threshold is used for enabling the terminal device to select a preamble of a first format when the downlink reference signal strength is smaller than the first threshold, and select a preamble of a second format when the downlink reference signal strength is greater than or equal to the first threshold, wherein the length of the preamble of the second format is smaller than that of the preamble of the first format;

the second threshold is used for enabling the terminal device to select the first random access resource when the downlink reference signal strength is smaller than the second threshold, and to select the second random access resource when the downlink reference signal strength is greater than or equal to the second threshold, wherein the preamble transmission times corresponding to the second random access resource are smaller than the preamble transmission times corresponding to the first random access resource;

the third threshold is used for enabling the terminal device to select the preamble of the third format when the downlink path loss is larger than the third threshold, and select the preamble of the fourth format when the downlink path loss is smaller than or equal to the third threshold, wherein the length of the preamble of the fourth format is smaller than that of the preamble of the third format;

and the fourth threshold is used for enabling the terminal equipment to select the third random access resource when the downlink path loss is greater than the fourth threshold, and to select the fourth random access resource when the downlink path loss is less than or equal to the fourth threshold, wherein the transmission times of the fourth random access resource are less than the transmission times of the third random access resource.

For a specific description of the method 300 executed by the network device in this embodiment, reference may be made to the related description of the method 200 about the network device, such as a base station, and for brevity, no further description is given here.

In an application example, the reccap terminal may send a Preamble to the network to report the antenna configuration, such as the antenna gain loss related parameter and/or the number of antennas of the terminal, to the network.

The performance of the initial access procedure-related signal transmission may be affected by a reduction or performance loss of the antenna configuration of the terminal. For example, the number of receive antennas supported by the red cap terminal is reduced from 2 receive antennas of the legacy terminal to 1 receive antenna. Since the red cap terminal has less received power of one antenna in signal reception and loses the spatial diversity gain that may be obtained in 2-antenna reception, the reception performance of the downlink signal is affected, for example, 3dB is lost. As another example, the loss of antenna gain due to the reduction in antenna size may also affect transmission performance: on the one hand, the receiving performance of the downlink signal may be affected, and on the other hand, the transmission performance of the uplink signal may also be affected. As in table 1 below, examples of several possible loss scenarios of the transmission performance of the terminal are listed:

table 1: impact of antenna configuration of terminal on transmission performance

As can be seen from table 1, the antenna configurations of different terminals have different effects on uplink and downlink transmissions. For example, since the number of antennas of the wearable device is 1Rx (1 receiving antenna), and the antennas have 3dB loss of antenna gain performance, the loss of downlink transmission performance reaches 6dB (1 Rx causes 3dB loss + 3dB loss of antenna gain), and the loss of uplink transmission performance reaches 3dB. For another example, since the number of antennas of other red cap terminals is 1Rx, but there is no antenna gain performance loss, the corresponding downlink transmission performance loss reaches 3dB (1 Rx causes 3dB loss), and the uplink transmission performance loss is 0dB.

In order to deal with the influence of the antenna configurations of different terminals on uplink or downlink transmission, the network usually needs some compensation measures, for example, the aforementioned transmission performance loss is compensated by reducing the code rate of transmission, increasing the power of transmission, increasing the duration of transmission, and the like. If the network knows the specific antenna parameters of the terminal: the number of receive antennas, the antenna gain (or antenna gain loss), etc., the network may implement appropriate compensation for the terminal's transmissions. For example, taking the wearable device in table 1 as an example, since the number of antennas is 1Rx, the antenna gain is 3dB, the transmission performance loss for the downlink is 6dB, and the transmission performance loss for the uplink is 3dB, the power of transmission can be increased by 3dB to reduce the transmission performance loss.

In the initial access process, the network and the terminal are about to carry out uplink and downlink communication, so the earlier the network obtains the antenna configuration of the terminal, the better the network obtains the antenna configuration of the terminal, and the more the network is favorable for stably and reliably completing the random access process of the terminal.

The terminal may report the antenna configuration of the terminal to the network by:

1) Reporting to network through preamble

For example, different preamble packets correspond to terminals with different antenna configurations. For example, corresponding to the class 4 terminals in table 1, the preamble may be divided into 4 groups, and each group of preamble group corresponds to one of the classes of terminals. And when each type of terminal initiates random access, only selecting the preamble of the preamble group corresponding to the type of terminal. For example, one preamble is randomly selected from a plurality of preambles included in the preamble packet corresponding to the class of terminal.

For another example, different preamble formats correspond to terminals with different antenna configurations. For example, in order to distinguish a terminal with antenna gain loss from a terminal without antenna gain loss in table 1, it may be distinguished by configuring different preamble formats. Specifically, for example, a preamble format matching the radius of the cell may be configured for a terminal without antenna gain loss; for a terminal with antenna performance loss, a longer preamble format can be configured, and then the transmission performance of the preamble is improved so as to make up for the influence of antenna gain loss.

2) Reporting to a network via PRACH resources

Terminals with different antenna configurations may be corresponded by different PRACH resources. For example, corresponding to 4 types of terminals in table 1, 4 sets of different PRACH resources may be configured, where each set of PRACH resources corresponds to one type of terminals. And when each type of terminal initiates random access, only selecting a preamble in the PRACH resource corresponding to the type of terminal.

Optionally, different PRACH resources may correspond to different preamble formats. For example, a preamble format matching the radius of a cell may be configured for a terminal without antenna gain loss; for a terminal with antenna performance loss, a longer preamble format can be configured, and then the transmission performance of the preamble is improved so as to make up for the influence of antenna gain loss.

Optionally, different preamble repetition times may be configured for different terminals corresponding to different PRACH resources. For example, preamble transmission for a terminal without antenna gain loss is not repeated or is repeated a small amount; for a terminal with antenna performance loss, repetition or more repetition times can be configured, and then the transmission performance of the preamble is improved so as to make up for the influence of antenna gain loss.

The following introduces the way for the terminal to select preamble or PRACH resource:

for uplink transmission, the performance loss of the antenna gain of the UE at the cell edge is more severe. This is because, for the UE in the center of the cell, the uplink transmit power is set based on the downlink path loss. The downlink path loss measured by the terminal with the antenna gain loss is also larger, so the transmitted uplink power is naturally larger, thereby compensating the influence of the antenna gain loss. However, for the UE at the cell edge, the uplink transmission power of the UE reaches the maximum transmission power of the UE, so that the UE cannot further increase the transmission power, and thus the performance of the edge UE may be lost.

To deal with this problem, an adaptation enhancement can be made for the edge UEs. For example, when the measured cell downlink reference signal strength of the terminal is greater than a certain threshold, the terminal selects a normal preamble or PRACH resource to transmit. For another example, when the measured cell downlink reference signal strength of the terminal is less than a certain threshold, the terminal selects PRACH resources corresponding to a longer preamble format or more transmission times to send the preamble.

The UE determines a transmission power P of a Physical Random Access Channel (PRACH) on a carrier (carrier) f activation (active) UL (Uplink) BWP (Bandwidth Part) b of a serving cell c based on DL-RS _PRACH,b,f,c (i) Serving cell c in transmission occasion (transmission occasion) i. See the following formula:

P _PRACHb,,f,c (i)＝min{P _CMAX,f,c (i),P _{PRACHt,arget,f,c} +PL _b,f,c } [ units may be dBm],

Wherein, P _CMAX,f,c (i) Maximum output power that can be configured for the UE serving cell c carrier f within transmission occasion i; p _{PRACH,target,f,c} Is PRACH TARGET RECEIVED POWER preable _ RECEIVED _ TARGET _ POWER provided by the upper layer for the activation UL BWP b of serving cell c carrier f; PL _b,f,c A Reference Signal Receiving Power (Reference Signal Receiving Power) is calculated by the UE in dB as a Reference Signal Power, i.e., a higher layer filtering Power in dBm, based on a DL RS (Reference Signal) carrier f associated with PRACH transmission on an active DL (Downlink) BWP of the serving cell c and a path loss of UL-BWPb is activated. If the active DL-BWP is the initial DL-BWP, and for SS/PBCH (Synchronization Signal/Physical Broadcast Channel,synchronization signal/physical broadcast channel) block and core set multiplexing mode 2 or 3, the ue determines PL based on the SS/PBCH block associated with PRACH transmission _b,f,c 。

In the information reporting method of this embodiment, the red cap terminal may report the antenna configuration of the terminal, including the number of antennas and/or the antenna gain loss, so that the network may perform corresponding configuration or operation based on the characteristics of the terminal, thereby ensuring that the red cap terminal can normally operate in the NR system.

Fig. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. The terminal device 400 may include:

a reporting unit 401, configured to report an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or an antenna number of the terminal device.

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.

Optionally, in this embodiment, the reporting unit 401 reports the antenna configuration by sending a preamble.

As shown in fig. 5, optionally, in this embodiment of the application, the terminal device 400 further includes at least one of the following:

a first receiving unit 402, configured to receive a corresponding relationship between a preamble and an antenna configuration;

a second receiving unit 403, configured to receive a corresponding relationship between a PRACH resource of a physical random access channel and an antenna configuration.

the corresponding relation between the preamble groups and the antenna configuration;

the preamble format corresponds to the antenna configuration.

Optionally, in this embodiment of the present application, the terminal device 400 further includes: a first measuring unit 404, configured to measure the downlink reference signal strength of the obtained cell.

Optionally, in this embodiment of the present application, the terminal device 400 further includes: a first selecting unit 405, configured to select a preamble of a first format when the measured downlink reference signal strength is smaller than a first threshold.

Optionally, in this embodiment of the application, the first selecting unit 404 is further configured to select a preamble of a second format when the measured downlink reference signal strength is greater than or equal to a first threshold, where a length of the preamble of the second format is smaller than a length of the preamble of the first format.

Optionally, in this embodiment of the present application, the terminal device 400 further includes: a second selecting unit 407, configured to select the first random access resource when the measured downlink reference signal strength is smaller than a second threshold.

Optionally, in this embodiment of the application, the second selecting unit 407 is further configured to select a second random access resource when the measured downlink reference signal strength is greater than or equal to a second threshold, where a number of preamble transmissions corresponding to the second random access resource is smaller than a number of preamble transmissions corresponding to the first random access resource.

Optionally, in this embodiment of the present application, the terminal device 400 further includes: a second measuring unit 408, configured to measure and obtain the downlink path loss.

Optionally, in this embodiment of the present application, the terminal device 400 further includes: a third selecting unit 409, configured to select a preamble in a third format when the measured downlink loss is greater than a third threshold.

Optionally, in this embodiment of the application, the third selecting unit 409 is further configured to select a preamble of a fourth format when the measured downlink loss is less than or equal to a third threshold, where a length of the preamble of the fourth format is less than a length of the preamble of the third format.

Optionally, in this embodiment of the present application, the terminal device 400 further includes: a fourth selecting unit 411, configured to select the third random access resource when the measured downlink loss is greater than a fourth threshold.

Optionally, in this embodiment of the application, the fourth selecting unit 411 is further configured to select a fourth random access resource when the measured downlink loss is less than or equal to a fourth threshold, where a number of transmissions of the fourth random access resource is less than a number of transmissions of the third random access resource.

The terminal device 400 of the embodiment of the present application can implement the corresponding function of the terminal device in the foregoing method embodiment. The corresponding processes, functions, implementation manners and beneficial effects of the modules (sub-modules, units or components, etc.) in the terminal device 400 may refer to the corresponding descriptions in the above method embodiments, and are not described herein again. It should be noted that the functions described in relation to the respective modules (sub-modules, units, or components, etc.) in the terminal device 400 of the application embodiment may be implemented by different modules (sub-modules, units, or components, etc.), or may be implemented by the same module (sub-modules, units, or components, etc.).

Fig. 6 is a schematic block diagram of a network device 500 according to an embodiment of the present application. The network device 500 may include:

a receiving unit 501, configured to receive an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or an antenna number of a terminal device.

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.

Optionally, in this embodiment of the present application, the receiving unit 501 is configured to receive a preamble, and acquire an antenna configuration of a terminal device corresponding to the preamble.

Optionally, in this embodiment of the present application, as shown in fig. 7, the network device 500 further includes at least one of the following:

a first sending unit 502, configured to send a corresponding relationship between a preamble and an antenna configuration;

a second sending unit 503, configured to send a corresponding relationship between the PRACH resource of the physical random access channel and the antenna configuration.

a correspondence of preamble packets to antenna configurations;

Optionally, in this embodiment of the present application, the network device 500 further includes:

a third transmitting unit 504, configured to transmit at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold;

the second threshold is used for enabling the terminal equipment to select the first random access resource when the downlink reference signal strength is smaller than the second threshold, and to select the second random access resource when the downlink reference signal strength is greater than or equal to the second threshold, wherein the preamble transmission times corresponding to the second random access resource are smaller than the preamble transmission times corresponding to the first random access resource;

and the fourth threshold is used for enabling the terminal equipment to select the third random access resource when the downlink path loss is larger than the fourth threshold, and select the fourth random access resource when the downlink path loss is smaller than or equal to the fourth threshold, wherein the transmission times of the fourth random access resource are smaller than the transmission times of the third random access resource.

The network device 500 of the embodiment of the present application can implement the corresponding functions of the network device in the foregoing method embodiments. For the corresponding processes, functions, implementation manners and beneficial effects of each module (sub-module, unit or component, etc.) in the network device 500, reference may be made to the corresponding description in the foregoing method embodiments, and details are not repeated here. It should be noted that the functions described in relation to the respective modules (sub-modules, units, or components, etc.) in the network device 500 of the application embodiment may be implemented by different modules (sub-modules, units, or components, etc.), or may be implemented by the same module (sub-modules, units, or components, etc.).

Fig. 8 is a schematic configuration diagram of a communication apparatus 600 according to an embodiment of the present application. The communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory to make the communication device 600 implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, the communication device 600 may further include a memory 620. From the memory 620, the processor 610 may call and execute a computer program to make the communication device 600 implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, as shown in fig. 8, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 630 may include a transmitter and a receiver, among others. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 600 may be a network device according to this embodiment, and the communication device 600 may implement a corresponding process implemented by the network device in each method according to this embodiment, which is not described herein again for brevity.

Optionally, the communication device 600 may be a terminal device in this embodiment, and the communication device 600 may implement a corresponding process implemented by the terminal device in each method in this embodiment, which is not described herein again for brevity.

Fig. 9 is a schematic block diagram of a chip 700 according to an embodiment of the application. The chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the chip 700 may further include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method executed by the terminal device or the network device in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.

Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

The chips applied to the network device and the terminal device may be the same chip or different chips.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

The aforementioned processors may be general purpose processors, digital Signal Processors (DSPs), field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor, or any conventional processor, etc.

The above-mentioned memories may be either volatile or nonvolatile memories, or may include both volatile and nonvolatile memories. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM).

It should be understood that the above memories are exemplary but not limiting, for example, the memories in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 10 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. The communication system 800 includes a terminal device 810 and a network device 820.

The terminal device 810 reports an antenna configuration, and the antenna configuration is used for indicating an antenna gain related parameter and/or an antenna number of the terminal device 810.

Network device 820 receives an antenna configuration indicating antenna gain related parameters and/or a number of antennas for terminal device 810.

The terminal device 810 may be configured to implement the corresponding functions implemented by the terminal device in the foregoing methods, and the network device 820 may be configured to implement the corresponding functions implemented by the network device in the foregoing methods. For brevity, no further description is provided herein.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produce, in whole or in part, the procedures or functions according to the embodiments of the application. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

An information reporting method comprises the following steps:

and the terminal equipment reports the antenna configuration, wherein the antenna configuration is used for indicating the antenna gain related parameters and/or the number of antennas of the terminal equipment.
The method of claim 1, the antenna gain related parameter comprising at least one of:

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.
The method of claim 1 or 2, wherein the reporting of the antenna configuration by the terminal device comprises:

and the terminal equipment reports the antenna configuration by sending a preamble.
The method of any of claims 1 to 3, wherein the method further comprises at least one of:

the terminal equipment receives the corresponding relation between the preamble and the antenna configuration;

and the terminal equipment receives the corresponding relation between the physical random access channel PRACH resource and the antenna configuration.
The method of claim 4, wherein the correspondence of the preamble to the antenna configuration comprises at least one of:

a correspondence of preamble packets to antenna configurations;

the preamble format corresponds to the antenna configuration.
The method according to claim 4 or 5, wherein different antenna configurations correspond to different preamble packets or preamble formats; or, different antenna configurations correspond to different PRACH resources.
The method of claim 4, in which different PRACH resources correspond to different preamble formats or different preamble repetition times.
The method of any of claims 1 to 7, wherein the method further comprises:

and the terminal equipment selects the preamble with the first format under the condition that the measured downlink reference signal strength of the cell is smaller than a first threshold value.
The method of claim 8, wherein the method further comprises:

selecting a preamble of a second format when the downlink reference signal strength is greater than or equal to a first threshold, wherein the length of the preamble of the second format is smaller than the length of the preamble of the first format.
The method of any of claims 1 to 7, wherein the method further comprises:

and the terminal equipment selects the first random access resource under the condition that the measured downlink reference signal strength of the cell is smaller than a second threshold value.
The method of claim 10, wherein the method further comprises:

and selecting a second random access resource under the condition that the downlink reference signal strength is greater than or equal to a second threshold, wherein the preamble transmission times corresponding to the second random access resource are less than the preamble transmission times corresponding to the first random access resource.
The method of any one of claims 1 to 11, wherein the method further comprises:

and the terminal equipment selects the preamble in the third format under the condition that the measured downlink path loss is greater than a third threshold value.
The method of claim 12, wherein the method further comprises:

and selecting a preamble of a fourth format when the downlink path loss is less than or equal to a third threshold, wherein the length of the preamble of the fourth format is less than the length of the preamble of the third format.
The method of any one of claims 1 to 11, wherein the method further comprises: and selecting a third random access resource when the measured downlink path loss of the terminal equipment is greater than a fourth threshold value.
The method of claim 14, wherein the method further comprises:

and selecting a fourth random access resource under the condition that the downlink path loss is less than or equal to a fourth threshold, wherein the transmission times of the fourth random access resource are less than the transmission times of the third random access resource.
An information processing method, comprising:

the network device receives an antenna configuration indicating antenna gain related parameters and/or the number of antennas of the terminal device.
The method of claim 16, the antenna gain related parameters comprising at least one of:

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.
The method of claim 16 or 17, wherein the network device receiving the antenna configuration comprises:

and the network equipment receives the preamble and acquires the antenna configuration of the terminal equipment corresponding to the preamble.
The method of any of claims 16 to 18, wherein the method further comprises at least one of:

the network equipment sends a corresponding relation between the preamble and the antenna configuration;

and the network equipment sends the corresponding relation between the PRACH resource and the antenna configuration.
The method of claim 19, wherein the preamble to antenna configuration correspondence comprises at least one of:

a correspondence of preamble packets to antenna configurations;

the corresponding relation between the preamble format and the antenna configuration.
The method according to claim 19 or 20, wherein different antenna configurations correspond to different preamble packets or preamble formats; or, different antenna configurations correspond to different PRACH resources.
The method of claim 19, in which different PRACH resources correspond to different preamble formats or different preamble repetition times.
The method of any of claims 16 to 22, wherein the method further comprises:

the network device transmitting at least one of a first threshold, a second threshold, a third threshold, and a fourth threshold;

the first threshold is used for enabling the terminal device to select a preamble of a first format when the downlink reference signal strength is smaller than the first threshold, and select a preamble of a second format when the downlink reference signal strength is greater than or equal to the first threshold, wherein the length of the preamble of the second format is smaller than that of the preamble of the first format;

the second threshold is used for enabling the terminal device to select a first random access resource when the downlink reference signal strength is smaller than the second threshold, and to select a second random access resource when the downlink reference signal strength is greater than or equal to the second threshold, wherein the preamble transmission times corresponding to the second random access resource are smaller than the preamble transmission times corresponding to the first random access resource;

the third threshold is used for enabling the terminal device to select a preamble of a third format when downlink loss is greater than the third threshold, and select a preamble of a fourth format when the downlink loss is less than or equal to the third threshold, where the length of the preamble of the fourth format is less than the length of the preamble of the third format;

the fourth threshold is used for enabling the terminal device to select a third random access resource when the downlink loss is greater than a fourth threshold, and select a fourth random access resource when the downlink loss is less than or equal to the fourth threshold, wherein the transmission times of the fourth random access resource are less than the transmission times of the third random access resource.
A terminal device, comprising:

and a reporting unit, configured to report an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or an antenna number of the terminal device.
The terminal device of claim 24, the antenna gain related parameters comprising at least one of:

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.
The terminal device of claim 24 or 25, wherein the reporting unit reports the antenna configuration by sending a preamble.
The terminal device of any of claims 24 to 26, wherein the terminal device further comprises at least one of:

a first receiving unit, configured to receive a corresponding relationship between a preamble and an antenna configuration;

and the second receiving unit is used for receiving the corresponding relation between the Physical Random Access Channel (PRACH) resource and the antenna configuration.
The terminal device of claim 27, wherein the correspondence of the preamble to the antenna configuration comprises at least one of:

a correspondence of preamble packets to antenna configurations;

the corresponding relation between the preamble format and the antenna configuration.
The terminal device according to claim 27 or 28, wherein different antenna configurations correspond to different preamble packets or preamble formats; or, different antenna configurations correspond to different PRACH resources.
The terminal device of claim 27, wherein different PRACH resources correspond to different preamble formats or different preamble repetition times.
The terminal device of any of claims 24 to 30, wherein the terminal device further comprises:

a first selecting unit, configured to select a preamble of a first format when the measured downlink reference signal strength of the cell is smaller than a first threshold.
The terminal device of claim 31, wherein the first selecting unit is further configured to select a preamble of a second format if the downlink reference signal strength is greater than or equal to a first threshold, wherein a length of the preamble of the second format is smaller than a length of the preamble of the first format.
The terminal device of any of claims 24 to 30, wherein the terminal device further comprises: and the second selecting unit is used for selecting the first random access resource under the condition that the measured downlink reference signal strength is smaller than a second threshold value.
The terminal device of claim 33, wherein the second selecting unit is further configured to select a second random access resource when the downlink reference signal strength is greater than or equal to a second threshold, where the number of preamble transmissions corresponding to the second random access resource is smaller than the number of preamble transmissions corresponding to the first random access resource.
The terminal device of any one of claims 24 to 34, wherein the terminal device further comprises: a third selecting unit, configured to select a preamble of a third format when the measured downlink path loss is greater than a third threshold.
The terminal device of claim 35, wherein the third selecting unit is further configured to select a preamble of a fourth format if the downlink loss is less than or equal to a third threshold, wherein a length of the preamble of the fourth format is less than a length of the preamble of the third format.
The terminal device of any one of claims 24 to 34, wherein the terminal device further comprises: a fourth selecting unit, configured to select the third random access resource when the measured downlink path loss is greater than a fourth threshold.
The terminal device of claim 37, wherein the fourth selecting unit is further configured to select a fourth random access resource when the downlink loss is less than or equal to a fourth threshold, where a number of transmissions of the fourth random access resource is less than a number of transmissions of the third random access resource.
A network device, comprising:

a receiving unit, configured to receive an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or an antenna number of a terminal device.
The network device of claim 39, the antenna gain related parameters comprising at least one of:

antenna gain;

antenna gain loss;

loss of gain of downlink antenna;

the uplink antenna gain is lost.
The network device according to claim 39 or 40, wherein the receiving unit is configured to receive a preamble and obtain an antenna configuration of the terminal device corresponding to the preamble.
The network device of any one of claims 39 to 41, wherein the network device further comprises at least one of:

a first transmitting unit, configured to transmit a correspondence between a preamble and an antenna configuration;

and the second sending unit is used for sending the corresponding relation between the Physical Random Access Channel (PRACH) resource and the antenna configuration.
The network device of claim 42, wherein the correspondence of preambles to antenna configurations comprises at least one of:

a correspondence of preamble packets to antenna configurations;

the corresponding relation between the preamble format and the antenna configuration.
The network device of claim 42 or 43, wherein different antenna configurations correspond to different preamble packets or preamble formats; or, different antenna configurations correspond to different PRACH resources.
The network device of claim 42, wherein different PRACH resources correspond to different preamble formats or different preamble repetition times.
The network device of any one of claims 39 to 45, wherein the network device further comprises: a third transmitting unit configured to transmit at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold;

the first threshold is used for enabling the terminal device to select a preamble of a first format when the downlink reference signal strength is smaller than the first threshold, and select a preamble of a second format when the downlink reference signal strength is greater than or equal to the first threshold, wherein the length of the preamble of the second format is smaller than that of the preamble of the first format;

the second threshold is used for enabling the terminal device to select a first random access resource when the downlink reference signal strength is smaller than the second threshold, and to select a second random access resource when the downlink reference signal strength is greater than or equal to the second threshold, wherein the preamble transmission times corresponding to the second random access resource are smaller than the preamble transmission times corresponding to the first random access resource;

the third threshold is used for enabling the terminal device to select a preamble of a third format when downlink loss is greater than the third threshold, and select a preamble of a fourth format when the downlink loss is less than or equal to the third threshold, where the length of the preamble of the fourth format is less than the length of the preamble of the third format;

and the fourth threshold is used for enabling the terminal equipment to select a third random access resource when the downlink path loss is greater than the fourth threshold, and select a fourth random access resource when the downlink path loss is less than or equal to the fourth threshold, wherein the transmission times of the fourth random access resource are less than the transmission times of the third random access resource.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to cause the terminal device to perform the method of any of claims 1 to 15.
A network device, comprising: a processor and a memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory to cause the network device to perform the method of any of claims 16 to 23.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 15.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 16 to 23.
A computer-readable storage medium storing a computer program which, when executed by an apparatus, causes the apparatus to perform the method of any one of claims 1 to 15.
A computer-readable storage medium storing a computer program which, when executed by an apparatus, causes the apparatus to perform the method of any one of claims 16 to 23.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1 to 15.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 16 to 23.
A computer program for causing a computer to perform the method of any one of claims 1 to 15.
A computer program for causing a computer to perform the method of any one of claims 16 to 23.