WO2023011071A1

WO2023011071A1 - Access method and apparatus

Info

Publication number: WO2023011071A1
Application number: PCT/CN2022/103041
Authority: WO
Inventors: 费永强; 邢艳萍; 高雪娟
Original assignee: 大唐移动通信设备有限公司
Priority date: 2021-08-06
Filing date: 2022-06-30
Publication date: 2023-02-09
Also published as: CN115706970A

Abstract

The present disclosure relates to the field of radio communications. Provided are an access method and apparatus. The method comprises: a network device determining the type of a terminal according to an RO where a pilot frequency is located, wherein if the RO belongs to a first RO set, the terminal is a first-type terminal; if the RO belongs to a second RO set, the terminal is a second-type terminal; and there is no intersection between the first RO set and the second RO set, or configuration information of the first RO set is different from configuration information of the second RO set.

Description

An access method and device

Cross References to Related Applications

This disclosure claims the priority of the Chinese patent application with the application number 202110904092.6 and the application name "A Access Method and Device" submitted to the China Patent Office on August 6, 2021, the entire contents of which are incorporated by reference in this disclosure .

technical field

The present disclosure relates to the technical field of wireless communication, and in particular to an access method and device.

Background technique

In the development of the fifth generation new radio system (5 Generation New Radio Access Technology, 5G NR) technology, a terminal with reduced capability appears, which is called a reduced capability (Reduced Capability, RedCap) terminal. Compared with ordinary terminals (also called non-RedCap terminals), RedCap terminals aim to reduce the implementation complexity and cost of terminals. The maximum bandwidth supported by RedCap terminals is smaller than that supported by ordinary terminals. For example, when the carrier frequency is below 6GHz, the maximum bandwidth of ordinary terminals is 100MHz, while the maximum bandwidth of RedCap terminals is only 20MHz. The minimum number of receiving antennas of a RedCap terminal is less than or equal to the minimum number of receiving antennas of an ordinary terminal, and its receiving capability is lower than that of an ordinary terminal. For example, the minimum number of receiving antennas of an ordinary terminal is 4 or 2, while the minimum number of receiving antennas of a RedCap terminal is 2 or 1.

No matter what kind of terminal needs to initiate random access to the network device, it can obtain the communication service of the network device. If the network device can know the type of the terminal in advance, it can perform targeted uplink or downlink scheduling to compensate for the loss of the RedCap terminal's receiving capability, thereby improving the utilization of network resources.

Therefore, how to identify the type of the terminal in the access phase to improve transmission reliability is a problem that needs to be solved at present.

Contents of the invention

Embodiments of the present disclosure provide an access method and device for identifying a terminal type.

In the first aspect, an access method is provided, including:

The network device receives the pilot frequency sent by the terminal;

The network device determines the type of the terminal according to the RO where the pilot is located; wherein, if the RO belongs to a first RO set, the terminal is a first type terminal, and if the RO belongs to a second RO set, the terminal is a second type terminal, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set .

Optionally, the first type of terminal initiates random access in the first uplink bandwidth part BWP, the second type of terminal initiates random access in the second uplink BWP, and the configuration information of the first uplink BWP includes the Configuration information of the first RO set, where the configuration information of the second uplink BWP includes configuration information of the second RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , The configuration information of the third uplink BWP includes configuration information of the first RO set and configuration information of the second RO set.

Optionally, the network device determines the type of random access initiated by the terminal according to the pilot sent by the terminal; wherein, if the pilot belongs to the first pilot set, the random access initiated by the terminal The access is 4-step random access. If the pilot belongs to the second pilot set, the random access initiated by the terminal is 2-step random access. The first pilot set and the second pilot set The frequency sets have no intersection.

Optionally, the first pilot set includes a first pilot subset and a second pilot subset, the first pilot subset corresponds to a terminal with enhanced coverage, and the second pilot subset corresponds to A non-coverage enhanced terminal; the method also includes:

If the pilot sent by the terminal belongs to the first pilot subset, the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access, if the The pilot sent by the terminal belongs to the second pilot subset, then the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the method further includes :

If the pilot sent by the terminal belongs to the first pilot subset, then the network device determines that the terminal is a coverage enhancement terminal and the random access initiated is a 4-step random access; if the terminal sends The pilot belongs to the second pilot subset; then the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal If the frequency belongs to the third pilot subset, the network device determines that the terminal is a coverage enhancement terminal and the random access initiated is a 2-step random access; if the pilot sent by the terminal belongs to the fourth pilot subset, the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 2-step random access.

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The method also includes:

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is the first type terminal and is a coverage-enhanced terminal, and if the terminal sends The RO where the pilot is located belongs to the second RO subset, then the network device determines that the terminal is a terminal in the first type and is a non-CE terminal;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the method further includes:

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is the first type terminal and is a coverage-enhanced terminal; if the terminal sends The RO where the pilot is located belongs to the second RO subset, then the network device determines that the terminal is the first type terminal and is a non-coverage enhanced terminal; if the pilot sent by the terminal If the RO where the frequency belongs belongs to the third RO subset, the network device determines that the terminal is the second type terminal and is a coverage-enhanced terminal; if the RO where the pilot sent by the terminal belongs to In the fourth RO subset, the network device determines that the terminal is the second type terminal and is not a coverage-enhanced terminal.

Optionally, the maximum bandwidth supported by the first type of terminal is different from the maximum bandwidth supported by the second type of terminal, the minimum number of receiving antennas of the first type of terminal is different from the minimum number of receiving antennas of the second type of terminal .

In the second aspect, an access method is provided, including:

The terminal sends a pilot to the network device in a random access channel opportunity RO corresponding to the type of the terminal;

Wherein, if the terminal is a first type terminal, the pilot is sent in ROs in the first RO set, and if the terminal is a second type terminal, then the pilot is sent in ROs in the second RO set The pilot, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set.

Optionally, before the terminal sends the pilot to the network device according to the RO corresponding to the terminal type, the method further includes:

The terminal selects the corresponding pilot according to the type of the random access to be initiated; wherein, if the random access to be initiated is a 4-step random access, select the pilot from the first pilot set, if the If the random access to be initiated is a 2-step random access, a pilot is selected from a second pilot set, and the first pilot set has no intersection with the second pilot set.

Optionally, the first pilot set includes a first pilot subset and a second pilot subset, the first pilot subset corresponds to a terminal with enhanced coverage, and the second pilot subset corresponds to Non-coverage enhanced terminal; the terminal selects the corresponding pilot, including:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, then the terminal selects a pilot from the first pilot subset; if the terminal is to initiate The random access is a 4-step random access and the terminal is a non-coverage enhanced terminal, then the terminal selects a pilot from the second pilot subset;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the terminal selection corresponds to pilots, including:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, then the terminal selects a pilot from the first pilot subset; if the terminal is to initiate The random access is 4-step random access and the terminal is a non-coverage-enhanced terminal, then the terminal selects a pilot from the second pilot subset; if the random access to be initiated by the terminal is 2-step random access and the terminal is a coverage-enhanced terminal, then the terminal selects a pilot from the third pilot subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal If the terminal is a non-coverage enhanced terminal, the terminal selects a pilot from the fourth pilot subset.

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The terminal sends a pilot to the network device in the RO corresponding to the type of the terminal, including:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, the terminal selects an RO from the first RO subset; if the terminal is the second type terminal and the If the terminal is a non-coverage enhanced terminal, the terminal selects an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to a coverage-enhanced terminal, and the second RO subset and the fourth RO subset correspond to a non-coverage-enhanced terminal; Network devices send pilots, including:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, the terminal selects an RO from the first RO subset; if the terminal is the first type terminal and the If the terminal is a non-coverage enhanced terminal, the terminal selects an RO from the second RO subset; if the terminal is the second type terminal and the terminal is a coverage enhanced terminal, then the terminal selects an RO from the second RO subset. Select an RO from the third RO subset; if the terminal is the second type terminal and the terminal is a non-coverage enhanced terminal, then the terminal selects an RO from the fourth RO subset.

In the above-mentioned embodiments of the present disclosure, since the first RO set corresponds to the first type of terminal, and the second RO set corresponds to the second type of terminal, the network device can determine the RO set to which it belongs according to the RO where the pilot sent by the terminal is located. The type of the terminal, so the uplink or downlink scheduling of the terminal can be targeted to improve the utilization of network resources.

Optionally, the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum receiving antenna number of the first type terminal and the minimum receiving antenna number of the second type terminal The number of antennas is different.

In a third aspect, an access method is provided, including:

The network device receives the pilot sent by the terminal, and the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The network device determines the type of the terminal according to the pilot set to which the pilot belongs; wherein, if the pilot belongs to the first pilot set, the terminal is the first type terminal, and if the If the pilot belongs to the second pilot set, the terminal is the second type terminal, and the first pilot set and the second pilot set have no intersection.

Optionally, the first type of terminal initiates random access in the first uplink bandwidth part BWP, the second type of terminal initiates random access in the second uplink BWP, and the configuration information of the first uplink BWP or the The configuration information of the second uplink BWP includes the configuration information of the RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , the configuration information of the third uplink BWP includes the configuration information of the RO set.

Optionally, the RO set includes a first RO set and a second RO set, and the first RO set has no intersection with the second RO set, or the configuration information of the first RO set and the second RO set The configuration information of the RO set is different;

The method also includes:

The network device determines the type of random access initiated by the terminal according to the RO where the pilot is located; wherein, if the RO where the pilot is located belongs to the first RO set, the random access initiated by the terminal The access is 4-step random access, and if the RO where the pilot is located belongs to the second RO set, the random access initiated by the terminal is 2-step random access.

Optionally, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals;

The method also includes:

If the RO where the pilot sent by the terminal belongs to the first RO set, the network device determines the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs , wherein, if the pilot belongs to the first pilot subset, the terminal is a first-type terminal and a coverage-enhanced terminal; if the pilot belongs to the second pilot subset, the terminal is The first type of terminal is a non-coverage-enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second-type terminal and is a coverage-enhanced terminal; if the pilot belongs to the fourth pilot frequency subset, the terminal is a second type terminal and is a non-coverage enhanced terminal.

Optionally, the method also includes:

If the RO where the pilot sent by the terminal belongs to the second RO set, the network device determines the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs , wherein, if the pilot belongs to the first pilot subset, the terminal is a first-type terminal and a coverage-enhanced terminal; if the pilot belongs to the second pilot subset, the terminal is The first type of terminal is a non-coverage-enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second-type terminal and is a coverage-enhanced terminal; if the pilot belongs to the fourth pilot frequency subset, the terminal is a second type terminal and is a non-coverage enhanced terminal.

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if The RO where the pilot sent by the terminal belongs to the second RO subset, then the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 2-step random access.

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if The RO where the pilot sent by the terminal belongs to the second RO subset, then the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if The RO where the pilot sent by the terminal belongs to the third RO subset, then the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 2-step random access; if the If the RO where the pilot sent by the terminal belongs to the fourth RO subset, the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 2-step random access.

Optionally, the maximum bandwidth supported by the first type of terminal is smaller than the maximum bandwidth supported by the second type of terminal, and/or the minimum number of receiving antennas of the first type of terminal is smaller than the number of receiving antennas of the second type of terminal .

In a fourth aspect, an access method is provided, including:

The terminal sends a pilot corresponding to the type of the terminal to the network device, and the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

Wherein, if the terminal is the first type terminal, the pilot belongs to a first pilot set, and if the terminal is the second type terminal, the pilot belongs to a second pilot set, The first set of pilots has no intersection with the second set of pilots.

Before the terminal sends the pilot corresponding to the type of the terminal to the network device, the method further includes:

The terminal selects an RO from the first RO set or the second RO set according to the type of random access to be initiated by the terminal; wherein, if the random access to be initiated is a 4-step random access If the random access to be initiated is 2-step random access, select an RO from the second RO set.

If the random access initiated by the terminal is a 4-step random access and the terminal is a first-type terminal and the terminal is a coverage-enhanced terminal, select a pilot from the first pilot subset; if the The random access initiated by the terminal is a 4-step random access and the terminal is a first type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the The random access initiated by the terminal is a 4-step random access and the terminal is a second-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the third pilot subset; if the terminal initiates If the random access is 4-step random access and the terminal is a second type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the fourth pilot subset.

Optionally, the method also includes:

If the random access initiated by the terminal is a 2-step random access and the terminal is a first-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the first pilot subset; if the The random access initiated by the terminal is a 2-step random access and the terminal is a first type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the The random access initiated by the terminal is a 2-step random access and the terminal is a second-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the third pilot subset; if the terminal initiates If the random access is 2-step random access and the terminal is a second type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the fourth pilot subset.

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The terminal sends a pilot corresponding to the type of the terminal to the network device, including:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, the terminal selects an RO from the first RO subset; if the random access to be initiated by the terminal input is 4-step random access and the terminal is a non-coverage enhanced terminal, then the terminal selects an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and all The third RO subset corresponds to a coverage-enhanced terminal, and the second RO subset and the RO subset correspond to a non-coverage-enhanced terminal; the terminal sends a pilot corresponding to the type of the terminal to the network device ,include:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, the terminal selects an RO from the first RO subset; if the random access to be initiated by the terminal If the input is a 4-step random access and the terminal is a non-coverage enhanced terminal, the terminal selects an RO from the second RO subset; if the random access to be initiated by the terminal is a 2-step random access and The terminal is a coverage-enhanced terminal, and the terminal selects an RO from the third RO subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal is a non-coverage-enhanced terminal , the terminal selects an RO from the fourth RO subset.

In a fifth aspect, a communication device is provided, including: a processor and a memory;

the memory stores computer instructions;

The processor is configured to read the computer instructions and execute the method according to any one of the first aspect to the fourth aspect above.

In a sixth aspect, a network device is provided, including: a receiving module and a processing module;

The receiving module is configured to receive the pilot frequency sent by the terminal;

The processing module is configured to determine the type of the terminal according to the random access channel opportunity RO where the pilot is located; wherein, if the RO belongs to the first RO set, the terminal is a first type terminal, If the RO belongs to the second RO set, the terminal is a second type of terminal, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set and the first RO set The configuration information of the two RO sets is different.

In a seventh aspect, a terminal is provided, including: a sending module and a processing module;

The sending module is configured to send a pilot to a network device in a random access channel opportunity RO corresponding to the type of the terminal;

The processing module is configured to send the pilot in ROs in the first RO set if the terminal is a first type terminal, and send the pilot in a second RO set if the terminal is a second type terminal The pilot is sent in the RO, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set.

In an eighth aspect, a network device is provided, including: a receiving module and a processing module;

The receiving module is configured to receive the pilot sent by the terminal, and the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The processing module is configured to determine the type of the terminal according to the pilot set to which the pilot belongs; wherein, if the pilot belongs to the first pilot set, the terminal is the first type terminal , if the pilot belongs to the second pilot set, the terminal is the second type of terminal, and the first pilot set and the second pilot set have no intersection.

In the ninth aspect, a terminal is provided, including: a sending module and a processing module;

The sending module is configured to send a pilot corresponding to the type of the terminal to the network device, where the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The processing module is configured to: if the terminal is the first type terminal, the pilot belongs to the first pilot set; if the terminal is the second type terminal, the pilot belongs to the first set Two sets of pilots, the first set of pilots does not overlap with the second set of pilots.

In a tenth aspect, a computer-readable storage medium is provided, including: the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer perform any of the above-mentioned first to fourth aspects. one of the methods described.

In an eleventh aspect, a computer program product is provided, comprising: when the computer program product is invoked by a computer, the computer executes the method described in any one of the first aspect to the fourth aspect.

In the above embodiments of the present disclosure, since the first pilot set corresponds to the first type of terminal, and the second pilot set corresponds to the second type of terminal, the network device can determine the terminal according to the pilot set to which the pilot sent by the terminal belongs. In this way, the terminal type can be identified in the access phase, and then the uplink or downlink scheduling of the terminal can be targeted to improve the utilization rate of network resources.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings required in the embodiments of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 exemplarily shows a schematic diagram of a system architecture applicable to an embodiment of the present disclosure;

FIG. 2 exemplarily shows a schematic flow chart of a 4-step random access method;

FIG. 3 exemplarily shows a schematic flow diagram of a 2-step random access method;

Fig. 4 exemplarily shows a block diagram of an access process provided by an embodiment of the present disclosure;

FIG. 5 exemplarily shows a schematic diagram of 4-step random access signaling interaction based on FIG. 4;

FIG. 6 exemplarily shows a schematic diagram of 2-step random access signaling interaction based on FIG. 4;

Fig. 7 schematically shows a block diagram of an access process provided by another embodiment of the present disclosure;

FIG. 8 exemplarily shows a schematic diagram of 4-step random access signaling interaction based on FIG. 6;

FIG. 9 exemplarily shows a schematic diagram of two-step random access signaling interaction based on FIG. 6;

FIG. 10 exemplarily shows a schematic structural diagram of a network device provided by an embodiment of the present disclosure;

FIG. 11 exemplarily shows a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

FIG. 12 exemplarily shows a schematic structural diagram of another network device provided by an embodiment of the present disclosure;

FIG. 13 illustrates a schematic structural diagram of another terminal provided in an embodiment of the present disclosure;

FIG. 14 exemplarily shows a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

FIG. 15 exemplarily shows a schematic structural diagram of another communication device provided by an embodiment of the present disclosure;

FIG. 16 exemplarily shows a schematic structural diagram of another communication device provided by an embodiment of the present disclosure;

Fig. 17 exemplarily shows a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

Some terms used in the embodiments of the present disclosure are explained below to facilitate the understanding of those skilled in the art.

(1) In the embodiments of the present disclosure, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand their meanings.

(2) The term "plurality" in the embodiments of the present disclosure refers to two or more, and other quantifiers are similar.

(3) "And/or", which describes the association relationship of associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists independently. Condition. The character "/" generally indicates that the contextual objects are an "or" relationship.

Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

FIG. 1 exemplarily shows a system architecture diagram applicable to an embodiment of the present disclosure. As shown in the figure, the system architecture diagram includes: a network device 101 and a terminal (102a, 102b). The network device 101 interacts with the terminals (102a, 102b) through a wireless communication network. The number of terminals may be more, and FIG. 1 only uses two terminals as an example for description.

The network device 101 is a device that provides wireless communication functions for the terminal, including but not limited to: a base station (generation NodeB, gNB), a radio network controller (radio network controller, RNC), and a node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (BaseBand Unit, BBU), transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), mobile switching center, etc. The base station in this disclosure may also be a device that provides wireless communication functions for terminals in other communication systems that may appear in the future. In the embodiments of the present disclosure, a "base station (gNB)" is used as an example for description.

A terminal (102a, 102b) is a device that can provide voice and/or data connectivity to a user. For example, the terminal device includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like. At present, the terminal equipment can be: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile Internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality ( augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in smart grid, and transportation safety A wireless terminal, a wireless terminal in a smart city, or a wireless terminal in a smart home, etc.

Wherein, the terminal 102a and the terminal 102b belong to different types of terminals, the terminal 102a is a first type terminal, and the terminal 102b is a second type terminal. Compared with the second type of terminal, the first type of terminal may be a terminal with different transmission capabilities, for example, the maximum bandwidth supported by the first type of terminal is different from the maximum bandwidth supported by the second type of terminal, and/or, the first type The minimum number of receiving antennas of the terminal is different from the minimum number of receiving antennas of the second type of terminal. Further, the maximum bandwidth supported by the first type of terminal is smaller than the maximum bandwidth supported by the second type of terminal, and/or, the minimum number of receiving antennas of the first type of terminal The number of receiving antennas is less than or equal to the minimum number of receiving antennas of the second type terminal. Exemplarily, the first type of terminal may be called a RedCap terminal, and the second type of terminal may be called a common terminal or a non-RedCap terminal. Different types of terminals may also be terminals that are different in other respects, for example, terminals of different service types, such as terminals for small data transmission (Small Data Transmission, SDT) services and terminals of non-small data transmission types, or terminals that support Terminals for random access network service slicing (slicing) and terminals that do not support service slicing. Different types of terminals may also be terminals with combinations of the above-mentioned multiple different bandwidths, number of antennas, and service types. In the following description, RedCap terminals and common terminals are used as examples for illustration.

The first type of terminals above can be further divided into coverage enhancement (Coverage Enhancement, CE) terminals and non-coverage enhancement terminals. The above-mentioned second type of terminal can also be further divided into a coverage-enhanced terminal and a non-coverage-enhanced terminal. A coverage enhanced terminal may also be called a coverage enhanced terminal or a coverage enhanced terminal. In 4-step Random Access (4-step Random Access Channel, 4-step RACH), a terminal with coverage enhancement capability may repeatedly send Msg3 to bear Radio Resource Control (Radio Resource Control, RRC) establishment request information. Terminals without the coverage enhancement capability do not support repeated sending of Msg3. Therefore, a terminal with enhanced coverage can also be considered as a terminal that supports Msg3 repeated transmission, or a terminal that requires/triggers Msg3 repeated transmission; a non-coverage enhanced terminal can also be considered as a terminal that does not support Msg3 repeated transmission, or does not require/trigger The terminal that triggers the repeated sending of Msg3.

Both the terminal 102a and the terminal 102b need to initiate random access to the network device 101, and only after accessing the network device 101 can the communication service provided by the network device 101 be obtained. Both the terminal 102a and the terminal 102b can initiate 4-step random access, wherein, random access channel (Random Access Channel, RACH) access and 2-step random access (2-step Random Access Channel, 2-step RACH).

Fig. 2 exemplarily shows a schematic flow chart of 4-step RACH. The gNB sends the configuration information of the 4-step random access to the terminal (User Equipment, UE) by broadcasting. According to the configuration information, the UE sends a pilot (Preamble) to the gNB on the Physical Random Access Channel (PRACH), that is, sends a message 1 (Msg1); the gNB sends Msg2 to the terminal according to the received Msg1, and Msg2 carries There is a random access response (Random Access Response, RAR); the terminal sends Msg3 to the gNB according to the received Msg2, and Msg3 carries a radio resource control (Radio Resource Control, RRC) request, and the gNB sends Msg4 to the terminal according to Msg3 to notify the terminal of a random Whether the access is successful.

Fig. 3 exemplarily shows a flow chart of 2-step random access.

The gNB sends the configuration information of 2-step RACH to the terminal by broadcasting. The terminal sends a message MsgA to the gNB according to the configuration information. MsgA includes a pilot (Preamble) and a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH); gNB sends MsgB to the terminal according to MsgA. If MsgB contains successful RAR (successRAR) , the random access process ends; if MsgB contains fallback RAR (fallbackRAR), the random access process falls back to 4-step random access, and the function of MsgB is similar to Msg2 in 4-step random access (including RAR), and the terminal will send Msg3 and receive Msg4 according to the schedule of fallbackRAR.

In the terminal access stage, the embodiments of the present disclosure realize terminal type identification, so that uplink scheduling or downlink scheduling can be performed in a targeted manner, network resource utilization can be improved, and system performance and/or system reliability can be further improved. For example, if the network device recognizes that the terminal currently initiating random access is a RedCap terminal in the terminal access phase (also called the RACH phase), it can schedule downlink transmission (such as RAR of 4-step random access or 2-step random access) When accessing the MsgB), the transmission reliability is improved to compensate for the loss of the RedCap UE's receiving capability.

FIG. 4 exemplarily shows a block diagram of an access process provided by an embodiment of the present disclosure. Based on this process, the network device can identify the type of the terminal according to the random access channel opportunity (RACH Occasion, RO) where the pilot sent by the terminal is located. , that is, determine whether the terminal is a first-type terminal or a second-type terminal.

Among them, a RO, also called Physical Random Access Channel Occasion (PRACH Occasion), is the time-frequency resource for the terminal to send a random access pilot and the base station to receive/detect a random access pilot. The base station may indicate time-frequency resources of multiple ROs to the terminal device, that is, a set of ROs. For example, the base station may indicate the RO set by indicating the time domain period of the RO, the starting position in a time domain period, the starting position in the frequency domain, and the number of ROs in the frequency domain. A certain terminal device sends a random access pilot in a certain RO, which can also be considered as the terminal device initiates random access in the RO.

As shown in Figure 4, the process includes:

S401: The terminal sends a pilot to the network device.

In this step, the terminal may send the pilot to the network device through the PRACH in the 4-step random access, that is, send Msg1, or send the pilot to the network device through the PRACH in the 2-step random access, that is, MsgA the pilot portion of .

In the embodiment of the present disclosure, the first type of terminal and the second type of terminal correspond to different RO sets, wherein the first type of terminal corresponds to the first RO set, and the second type of terminal corresponds to the second RO set. The terminal can send a pilot to the network device in the RO corresponding to the type of the terminal, that is, the RO of the first type terminal in the first RO set sends the pilot, and the RO of the second type terminal in the second RO set sends the pilot. The RO sends the pilot, so that the base station identifies the type of the terminal based on the RO set to which the RO where the pilot belongs belongs. In order for the base station to identify the terminal type through the RO set to which the received/detected pilot belongs, the first RO set and the second RO set have no intersection, that is, the ROs in the first RO set and the ROs in the second RO set The ROs are different. For example, the base station indicates the time-frequency resources of the first RO set and the second RO set through different configuration information, that is, the configuration information of the first RO set is different from the configuration information of the second RO set.

The configuration information of the first RO set and the second RO set may be sent by the network device to the terminal. Optionally, the embodiments of the present disclosure provide the following two ways to configure different RO sets for different types of terminals by the network device:

Mode 1: If the first type of terminal initiates random access in the first uplink bandwidth part (Bandwidth Part, BWP), and the second type of terminal initiates random access in the second uplink BWP, then the configuration information of the first uplink BWP includes the first The configuration information of the RO set, the configuration information of the second uplink BWP includes the configuration information of the second RO set.

Exemplarily, the base station configures different initial uplink bandwidth parts (initial Uplink Bandwidth Part, initial UL BWP) for the RedCap UE and the normal UE respectively. In this case, the base station can configure the normal UE in the initial UL BWP The RO set used by the UE (that is, the above-mentioned second RO set), for example, includes the RO configuration information of the common UE in the initial UL BWP configuration information of the common UE. The base station can also configure the RO set used by the RedCap UE (ie the first RO set) in the initial UL BWP of the RedCap UE, for example, the initial UL BWP configuration information of the RedCap UE includes the RO configuration information of the RedCap UE.

Optionally, the initial UL BWP configuration information of common UEs and the initial UL BWP configuration information of RedCap UEs may be broadcast and sent by the base station in the system information.

Method 2: If the first type terminal and the second type terminal initiate random access in the third uplink BWP, and the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal, then the configuration of the third uplink BWP The information includes configuration information of the first RO set and configuration information of the second RO set.

Exemplarily, the base station configures a shared initial UL BWP for the RedCap UE and the common UE. In this case, the base station can configure both the RO set of ordinary UEs and the RO set of RedCap UEs in the shared initial UL BWP. For example, the initial UL BWP configuration information includes the RO configuration information of ordinary UEs. And configuration information including RO of RedCap UE.

Optionally, the shared initial UL BWP configuration information may be broadcast and sent by the base station in the system information.

Optionally, in some embodiments of the present disclosure, the type of random access initiated by the terminal may also be distinguished based on the pilot, for example, whether the terminal initiates 4-step random access or 2-step random access. The network device can configure available pilot sets for 4-step random access and 2-step random access respectively, where 4-step random access corresponds to the first pilot set, and 2-step random access corresponds to the second pilot set , there is no intersection between the first pilot set and the second pilot set, that is, the pilots in the first pilot set are different from the pilots in the second pilot set.

Correspondingly, according to the RO corresponding to the type of the terminal, before sending the pilot to the network device, the terminal may select the corresponding pilot according to the type of random access to be initiated. If the terminal wants to initiate 4-step random access, it selects a pilot from the first pilot set; if the terminal wants to initiate 2-step random access, it selects a pilot from the second pilot set.

The way of distinguishing the pilot frequency involves the mapping relationship between the synchronization signal (Synchronization Signal Block, SSB) and the RO. In the NR system, N (N is an integer greater than or equal to 1) SSB can be mapped to 1 RO; if the terminal measures the signal strength of a certain SSB greater than a threshold value, it can initiate from the RO corresponding to the SSB random access.

Exemplarily, it may specifically include the following two situations:

Case 1: If N<1, one SSB is mapped to 1/N ROs. In this case, each RO corresponding to each SSB includes:

The pilot index (preamble index) corresponding to the 4-step random access is R, and the starting point of the pilot index is 0, that is, the R pilots belong to the above-mentioned first pilot set;

There are Q pilot indexes (preamble indexes) corresponding to the 2-step random access, and the starting point of the pilot indexes is R, that is, the Q pilots belong to the above-mentioned second pilot set.

Case 2: If N>=1, one RO includes mappings of N SSBs. In this case, in each RO, corresponding to the nth SSB:

The number of pilot indexes (preamble index) corresponding to the 4-step random access is R, and the starting point of the pilot index is

That is, the R pilots belong to the above-mentioned first pilot set;

The number of pilot indexes (preamble index) corresponding to the 2-step random access is Q, and the starting point of the pilot index is

That is, the Q pilots belong to the above-mentioned second pilot set.

Among them, the above parameters N, R, Q and

Can be indicated or predefined by the network device. It should be noted that the above-mentioned parameters of the second-type terminal and the above-mentioned parameters of the first-type terminal may be the same, for example, the above-mentioned parameters are shared by the first-type terminal and the second-type terminal; they may also be different, for example, the network The device independently configures two different sets of parameters for the first type terminal and the second type terminal.

Further, in this embodiment, the first pilot set and/or the second pilot set may be further divided into different pilot subsets to distinguish coverage-enhanced terminals from non-coverage-enhanced terminals, or to Distinguish between terminals that support Msg3 repeated transmission during the random access phase and terminals that do not support Msg3 repeated transmission, or to distinguish between terminals that require/trigger Msg3 repeated transmission during the random access phase and terminals that do not require/do not trigger Msg3 repeated transmission.

In the embodiment of the present disclosure, the division of the pilot set may include the following two methods:

Method 1: Only the first pilot set corresponding to the 4-step random access is divided into subsets, so that the first pilot set includes the first pilot subset and the second pilot subset, wherein the first pilot subset The first set corresponds to coverage-enhanced terminals, and the second pilot subset corresponds to non-coverage-enhanced terminals. That is, it indicates that a part of pilots in the first pilot set are only used by terminals that support coverage enhancement, and that another part of pilots is only used by terminals that do not support coverage enhancement. Correspondingly, before the terminal sends the pilot, if the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, the terminal selects a pilot from the first pilot subset; if the The random access to be initiated by the terminal is a 4-step random access and the terminal is a non-coverage enhanced terminal, then the terminal selects a pilot from the second pilot subset.

Considering that the 2-step random access is often used by terminals with better coverage conditions, there is generally no need for coverage enhancement in the random access stage, so only the 4-step random access identification support is required Or a terminal that does not support enhanced coverage is sufficient.

Taking the above-mentioned 4-step random access corresponding to the first pilot set including R pilots as an example, assuming that a terminal that does not support coverage enhancement uses the first R1 of the R 4-step random access pilots to support coverage enhancement The terminal uses the last R-R1 of the R 4-step random access pilots, which includes the following two situations:

Case 1: If N<1, one SSB is mapped to 1/N ROs. In this case, in each RO corresponding to each SSB:

The pilot index (preamble index) that does not support coverage enhancement and uses 4-step random access is R1, and the starting point of the pilot index is 0, that is, the R1 pilots belong to the above-mentioned second pilot subset;

The pilot index (preamble index) that supports coverage enhancement and uses 4-step random access is R-R1, and the starting point of the pilot index is R1, that is, the R-R1 pilots belong to the above-mentioned first pilot subset;

The number of pilot indexes (preamble indexes) corresponding to the 2-step random access is Q, and the starting point of the pilot indexes is R, that is, the second pilot set corresponding to the 2-step RACH does not perform subset division.

Case 2: If N>=1, then one RO includes mappings of N SSBs. In this case, in each RO, corresponding to the nth SSB:

The pilot index (preamble index) that does not support coverage enhancement and uses 4-step random access is R1, and the starting point of the pilot index is

That is, the R1 pilots belong to the above-mentioned second pilot subset;

The pilot index (preamble index) that supports coverage enhancement and uses 4-step random access is R-R1, and the starting point of the pilot index is

That is, the R-R1 pilots belong to the above-mentioned first pilot subset;

The number of pilot indexes (preamble indexes) corresponding to the 2-step random access is Q, and the starting point of the available pilot indexes is

That is, the second pilot set corresponding to the 2-step RACH does not perform subset division.

Method 2: Perform subset division on the first pilot set corresponding to the 4-step random access, and also perform subset division on the second pilot set corresponding to the 2-step random access, so that the first pilot set includes the first pilot set A pilot subset and a second pilot subset, the second pilot set includes a third pilot subset and a fourth pilot subset, wherein the first pilot subset and the third pilot subset correspond to cover For enhanced terminals, the second pilot subset and the fourth pilot subset correspond to non-coverage enhanced terminals. That is, it indicates that a part of the pilots in the first pilot set and a part of the pilots in the second pilot set are only used by terminals that support coverage enhancement, and indicates that another part of the pilots in the first pilot set and the second pilot Another part of pilots in the frequency set is only used by terminals that do not support coverage enhancement. Correspondingly, before the terminal sends the pilot, if the random access to be initiated by the terminal is a 4-step random access and the terminal is a terminal with enhanced coverage, the terminal selects a pilot from the first pilot subset; if the terminal The random access to be initiated is a 4-step random access and the terminal is a non-coverage enhanced terminal, then the terminal selects a pilot from the second pilot subset; if the random access to be initiated by the terminal is a 2-step random access and If the terminal is a coverage-enhanced terminal, the terminal selects a pilot from the third pilot subset; A pilot is selected from a subset of four pilots.

Considering that 2-step random access may fall back to 4-step random access by rolling back RAR, if the base station recognizes that the terminal has the capability of coverage enhancement, it can schedule the terminal to repeat Transmit Msg3. Therefore, it is necessary to identify terminals that support or do not support coverage enhancement in 4-step random access and 2-step random access.

Taking the above-mentioned 4-step random access corresponding to the first pilot set including R pilots as an example, terminals that do not support coverage enhancement use the first R1 of the 4-step random access pilots, and terminals that support coverage enhancement use The last R-R1 of the R 4-step random access pilots; taking the second pilot set corresponding to the above 2-step random access including Q pilots as an example, the terminal that does not support coverage enhancement uses Q The first Q1 of the 2-step random access pilots, and the terminal that supports coverage enhancement uses the last Q-Q1 of the Q 2-step random access pilots.

Case 1: If N<1, then one SSB is mapped to 1/N ROs. In this case, in each RO corresponding to each SSB:

The pilot index (preamble index) that does not support coverage enhancement and uses 2-step random access is Q1, and the starting point of the pilot index is R, that is, the Q1 pilots belong to the above-mentioned fourth pilot subset;

The pilot index (preamble index) that supports coverage enhancement and uses 2-step random access is Q-Q1, and the starting point of the pilot index is R+Q1, that is, the Q-Q1 pilots belong to the above-mentioned third pilot sub- set.

Case 2: If N>=1, then one RO includes mappings of N SSBs. In this case, in each RO, corresponding to the nth SSB (0≤n≤N-1):

That is, the R1 pilots belong to the above-mentioned second pilot subset;

That is, the R-R1 pilots belong to the above-mentioned first pilot subset;

The pilot index (preamble index) that does not support coverage enhancement and uses 2-step random access is Q1, and the starting point of the pilot index is

That is, the Q1 pilots belong to the above-mentioned fourth pilot subset;

The pilot index (preamble index) that supports coverage enhancement and uses 2-step random access is Q-Q1, and the starting point of the pilot index is

That is, the Q-Q1 pilots belong to the above-mentioned third pilot subset.

Wherein, the terminal that does not support coverage enhancement uses the first R1 of the R pilots (or the first Q1 of the Q pilots) as an example, in fact, it may also be the terminal that supports coverage enhancement uses the first R of the R pilots R1 (or the first Q1 in Q preambles), the technical effects of the two are the same; in addition, other parameters can also be used to represent the parameters of the combination, for example, R2 is used to replace R-R1, or Q2 is used to replace Q-Q1, Also has the same technical effect.

Optionally, in this embodiment, the first RO set and/or the second RO set may be further divided into different RO subsets to distinguish coverage-enhanced terminals from non-coverage-enhanced terminals.

In the embodiment of the present disclosure, the division of the RO set may include the following two methods:

Mode 1: Subset only the first RO set corresponding to the first type of terminal, so that the first RO set includes the first RO subset and the second RO subset, where the first RO subset corresponds to coverage-enhanced For a terminal, the second RO subset corresponds to a non-coverage enhanced terminal. That is, it indicates that a part of ROs in the first RO set is only used by terminals that support coverage enhancement, and indicates that another part is only used by terminals that do not support coverage enhancement.

Correspondingly, before the terminal sends a pilot to the network device in the RO corresponding to the type of the terminal, if the terminal is a terminal of the first type and is a terminal with enhanced coverage, the terminal selects an RO from the first RO subset, and if the terminal is If the terminal of the second type is not a coverage-enhanced terminal, the terminal selects an RO from the second RO subset.

Method 2: Subset the first RO set corresponding to the first type of terminal and subset the second RO set corresponding to the second type of terminal, so that the first RO set includes the first RO subset and the second RO set. RO subsets, the second RO subset includes a third RO subset and a fourth RO subset, where the first RO subset and the third RO subset correspond to terminals with enhanced coverage, and the second RO subset and the fourth RO subset The subset corresponds to non-coverage enhanced terminals. That is, it indicates that a part of ROs in the first RO set is only used by terminals that support coverage enhancement, indicates that another part is only used by terminals that do not support coverage enhancement, and indicates that a part of ROs in the second RO set is only used by terminals that support coverage enhancement Used, indicating that the other part is only used by terminals that do not support coverage enhancement.

Correspondingly, before the terminal sends a pilot to the network device in the RO corresponding to the type of the terminal, if the terminal is a terminal of the first type and is a terminal with enhanced coverage, the terminal selects an RO from the first RO subset; One type of terminal and non-coverage enhanced terminal, the terminal selects RO from the second RO subset, if the terminal is the second type terminal and is a coverage enhanced terminal, then the terminal selects RO from the third RO subset, if the terminal is If the terminal of the second type is not a coverage-enhanced terminal, the terminal selects an RO from the fourth RO subset.

S402: The network device determines the terminal type according to the RO where the pilot is located.

Wherein, if the RO where the pilot is located belongs to the first RO set, the network device determines that the terminal is a first type terminal, and if the RO where the pilot is located belongs to the second RO set, then the network device determines that the terminal is a terminal of the second type. The first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set.

Optionally, if the available pilots are divided into the first pilot set corresponding to the 4-step random access and the second pilot set corresponding to the 2-step random access, the network device can also determine the The type of random access initiated by the terminal. Wherein, if the pilot belongs to the first pilot set, the random access initiated by the terminal is 4-step random access; if the pilot belongs to the second pilot set, the random access initiated by the terminal is 2-step random access.

Optionally, if the available first pilot set is further divided so that the first pilot set includes the first pilot subset and the second pilot subset, the network device determines that the terminal initiates the Whether the 4-step random access supports coverage enhancement; if the pilot belongs to the first pilot subset, the 4-step random access initiated by the terminal corresponds to coverage enhancement; if the pilot belongs to the second pilot subset, the terminal The initiated 4-step random access corresponds to non-coverage enhancement.

Optionally, if the available first pilot set is further divided, the available second pilot set is also further divided, so that the first pilot set includes the first pilot subset and the second pilot subset. The two pilot sets include the third pilot subset and the fourth pilot subset, then the network device determines whether the 4-step random access and 2-step random access initiated by the terminal support coverage enhancement according to the pilot sent by the terminal; , if the pilot belongs to the first pilot subset, then the 4-step random access initiated by the terminal corresponds to coverage enhancement; if the pilot belongs to the second pilot subset, then the 4-step random access initiated by the terminal corresponds to non-coverage enhancement, If the pilot belongs to the third pilot subset, the 2-step random access initiated by the terminal corresponds to coverage enhancement, and if the pilot belongs to the fourth pilot subset, the 2-step random access initiated by the terminal corresponds to non-coverage enhancement.

Optionally, if the first RO set is further divided so that the first RO set includes the first RO subset and the second RO subset, if the RO where the pilot sent by the terminal belongs to the first RO subset, the network device It is determined that the terminal is a first type terminal and a coverage enhanced terminal, and if the RO where the pilot sent by the terminal belongs to the second RO subset, the network device determines that the terminal is a first type terminal and a non-coverage enhanced terminal.

Optionally, if the first RO set is further divided so that the first RO set includes the first RO subset and the second RO subset, the second RO set is further divided so that the second RO set includes the third RO subset and the fourth RO subset, if the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is the first type of terminal and is a terminal with enhanced coverage; if the RO where the pilot sent by the terminal is located If it belongs to the second RO subset, the network device determines that the terminal is the first type of terminal and is not a coverage enhanced terminal; if the RO where the pilot sent by the terminal belongs to the third RO subset, the network device determines that the terminal is the first type of RO. The terminal of the second type is a terminal with enhanced coverage; if the RO where the pilot sent by the terminal belongs to the fourth RO subset, the network device determines that the terminal is a terminal of the second type and is not a terminal with enhanced coverage.

In the embodiment of the present disclosure, the network device can identify whether the terminal is the first type terminal or the second type terminal according to the random RO where the pilot sent by the terminal is located, which is beneficial for the network device to perform corresponding scheduling configurations for different types of terminals, improving the Utilization of network resources.

FIG. 5 exemplarily shows a schematic diagram of 4-step random access signaling interaction based on FIG. 4 . As shown, the process includes:

S501: The terminal sends Msg1 to the network device;

S502: The network device determines the type of the terminal according to the RO where the pilot is located;

S503: The network device determines the random access type initiated by the terminal according to the pilot set to which the pilot belongs;

S504: The network device determines whether the terminal is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs;

Wherein, steps S501, S502, S503, and S504 are described with reference to FIG. 4, and S503 and S504 are optional steps;

S505: The network device sends Msg2, and Msg2 carries RAR, which is used to notify the terminal whether it can access;

S506: The terminal sends Msg3 to the network device;

In this step, the terminal sends Msg3 to the network device according to the received Msg2, wherein Msg3 carries an RRC request;

S507: The network device sends Msg4 to the terminal;

In this step, the network device sends Msg4 to the terminal according to the received Msg3 to notify the terminal whether the random access is successful.

FIG. 6 exemplarily shows a schematic diagram of 2-step random access signaling interaction based on FIG. 4 . As shown in the figure, the process includes:

S601: The terminal sends MsgA to the network device, where MsgA carries a pilot and a physical uplink shared channel;

S602: The network device identifies the terminal type according to the RO where the pilot is located;

S603: The network device determines the random access type initiated by the terminal according to the pilot set to which the pilot belongs;

S604: The network device determines whether the terminal is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs;

Wherein, the steps of S601, S602, S603, and S604 are described with reference to FIG. 4, and S603 and S604 are optional steps;

In this step, the terminal sends MsgA to the network device, wherein MsgA carries the pilot frequency and the physical uplink shared channel.

S605: The network device sends the MsgB to the terminal.

In this step, the network device sends MsgB to the terminal according to the received MsgA. If MsgB contains a successful RAR, the random access procedure ends. If MsgB contains a fallback RAR, the random access procedure returns to step 4. Msg2 in the random access, and the terminal sends Msg3 according to the scheduling of fallback RAR, and receives Msg4, notifying the terminal whether the random access is successful.

Fig. 7 exemplarily shows a block diagram of an access procedure provided by another embodiment of the present disclosure. Based on this process, the network device can identify the type of the terminal according to the pilot sent by the terminal, that is, determine whether the terminal is a first-type terminal or a second-type terminal.

As shown in Figure 7, the process includes:

S701: The terminal sends a pilot corresponding to the type of the terminal to the network device;

Wherein, the RO where the pilot sent by the terminal belongs to the RO set shared by the first type terminal and the second type terminal;

In this step, the terminal may send the pilot to the network device through the PRACH in the 4-step random access, that is, send Msg1, or send the pilot to the network device through the PRACH in the 2-step random access, that is, MsgA pilot part.

In the embodiment of the present disclosure, the first type of terminal and the second type of terminal correspond to different pilot sets, wherein the first type of terminal corresponds to the first pilot set, the second type of terminal corresponds to the second pilot set, and the first pilot There is no intersection between the set and the second pilot set, that is, the pilots in the first pilot set are different from the pilots in the second pilot set, so that the network device identifies the terminal's identity based on the pilot set to which the pilot belongs. type.

The configuration information of the RO set shared by the first-type terminal and the second-type terminal may be sent by the network device to the terminal.

Optionally, this embodiment of the present disclosure provides the following two ways to implement sharing RO sets configured for different types of terminals:

Method 1: If the first type of terminal initiates random access in the first uplink bandwidth part BWP, and the second type of terminal initiates random access in the second uplink BWP, the configuration information of the first uplink BWP or the configuration information of the second uplink BWP Include the configuration information of the RO set.

Exemplarily, the base station configures different initial UL BWPs for the RedCap UE and the common UE respectively. In this case, the base station can only configure shared For example, the initial UL BWP configuration information of the common UE includes the configuration information of the shared RO set, and both the common UE and the RedCap UE determine the RO set according to the configuration information of the RO set. In a feasible embodiment, the RO set shared by the base station is included in the initial UL BWP range of the common UE, and is included in the initial UL BWP range of the RedCap UE.

Mode 2: If the first type terminal and the second type terminal initiate random access in the third uplink BWP, the third uplink BWP is the uplink BWP shared by the first type terminal and the second type terminal, and the third uplink BWP The configuration information is the configuration information of the shared first RO set and the configuration information of the second RO set.

Exemplarily, the base station configures a shared initial UL BWP for the RedCap UE and the common UE. In this case, the base station can configure a shared RO set in the shared initial UL BWP, for example, the initial UL BWP configuration information includes RO configuration information for common UEs and RO configuration information for RedCap UEs.

Optionally, in some embodiments of the present disclosure, the type of random access initiated by the terminal may also be distinguished based on the RO where the pilot is located, for example, whether the terminal initiates a 4-step random access or a 2-step random access. Network devices can configure RO sets for 4-step random access and 2-step random access respectively, where 4-step random access corresponds to the first RO set, 2-step random access corresponds to the second RO set, and the first RO set and The second RO set has no intersection, that is, the ROs in the first RO set are different from the ROs in the second RO set, for example, the base station indicates the time-frequency resources of the first RO set and the second RO set through different configuration information, That is, the configuration information of the first RO set is different from the configuration information of the second RO set.

Correspondingly, before the terminal sends the pilot corresponding to the type of the terminal to the network device, it can select an RO from the first RO set or the second RO set according to the type of random access to be initiated by the terminal; If the initiated random access is a 4-step random access, select an RO from the first RO set; if the to-be-initiated random access is a 2-step random access, select an RO from the second RO set.

Taking the first type of terminal and the second type of terminal as RedCap UE and ordinary UE respectively as an example, when the base station configures the shared RO set, the RO set includes the first RO set for 4-step random access, and the first RO set for 4-step random access. The second RO set of 2-step random access, therefore, no matter whether the normal UE and the RedCap UE share the initial UL BWP or not, the base station can determine the terminal that sent the pilot based on which ROs received the pilot. 4-step random access H or 2-step RACH; correspondingly, the terminal can send pilots on ROs in different RO sets to indicate whether the terminal initiates 4-step random access or 2-step random access.

The manner of distinguishing the pilot frequency involves the mapping relationship between the SSB and the RO. In the NR system, N (N is an integer greater than or equal to 1) SSB can be mapped to 1 RO; if the terminal measures the signal strength of a certain SSB greater than a threshold value, it can initiate from the RO corresponding to the SSB random access.

If the base station does not identify "UEs that support coverage enhancement and UEs that do not support coverage enhancement", or do not identify "terminals that support Msg3 repeated transmission and terminals that do not support Msg3 repeated transmission", or do not identify "require/ Terminals that trigger repeated sending of Msg3 and terminals that do not require/trigger repeated sending of Msg3" then:

Exemplarily, it may specifically include the following two situations:

There are P pilot indexes corresponding to the common UE, and the starting point of the pilot index is 0, that is, the P pilots belong to the second pilot set.

There are S pilot indexes corresponding to the RedCap UE, and the starting point of the pilot index is P, that is, the S pilots belong to the first pilot set.

Case 2: If N>=1, an RO includes mappings of N SSBs. In this case, in each RO, corresponding to the nth SSB (0≤n≤N-1):

There are P pilot indexes corresponding to ordinary UEs, and the starting point of the pilot indexes is

That is, the P pilots belong to the second pilot set;

The number of pilot indexes corresponding to RedCap UE is S, and the starting point of the pilot index is

That is, the S pilots belong to the first pilot set.

Among them, the above parameters N, P, S and

May be indicated or predetermined by network equipment. N, P, S and

is a positive integer greater than 0. It should be noted that the above-mentioned parameters for 4-step random access and the above-mentioned parameters for 2-step random access may be the same, for example, the parameters are shared; 2-step random access and 2-step random access are independently configured with two different sets of parameters.

The above method takes ordinary UEs using the first P pilots as an example. In fact, RedCap UEs can also use the first P pilots. The technical effects of the two are the same. In short, through the above method, it can be identified according to the pilot whether the terminal that initiates random access is a normal UE or a RedCap UE.

Further, in this embodiment, the first pilot set and/or the second pilot set may be further divided into different pilot subsets, so that the first pilot set includes the first pilot subset and the second pilot set. The frequency subset, the second pilot set includes the third pilot subset and the fourth pilot subset, which are used to distinguish coverage-enhanced terminals from non-coverage-enhanced terminals, or to distinguish between terminals that support Msg3 in the random access phase Terminals that repeatedly send Msg3 and terminals that do not support Msg3 repeated transmission, or used to distinguish between terminals that require/trigger Msg3 repeated transmission and terminals that do not require/do not trigger Msg3 repeated transmission during the random access phase. Wherein, the first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and fourth pilot subset correspond to non-coverage-enhanced terminals.

Method 1: In the case that the random access initiated by the terminal is a 4-step random access: if the terminal is a first-type terminal and a coverage-enhanced terminal, select a pilot from the first pilot subset; A type of terminal and a non-coverage-enhanced terminal, select a pilot from the second pilot subset; if the terminal is a second-type terminal and a coverage-enhanced terminal, select a pilot from the third pilot subset; if If the terminal is a terminal of the second type and is not a coverage-enhanced terminal, a pilot is selected from the fourth pilot subset.

If the random access initiated by the terminal is a 2-step random access, it includes the following situations: if the terminal is a first-type terminal, select a pilot from the first pilot set; if the terminal is a second-type terminal, select a pilot from the second set A pilot is selected from the two pilot sets.

Considering that 2-step random access is often used by terminals with better coverage conditions, generally there is no need to perform coverage enhancement in the random access stage, so it is only necessary to identify in 4-step random access Terminals that support or do not support enhanced coverage are sufficient.

Mode 2: In the case that the random access initiated by the terminal includes 4-step random access: if the terminal is a first-type terminal and a coverage-enhanced terminal, select a pilot from the first pilot subset; A type of terminal and a non-coverage-enhanced terminal, select a pilot from the second pilot subset; if the terminal is a second-type terminal and a coverage-enhanced terminal, select a pilot from the third pilot subset; if If the terminal is a terminal of the second type and is not a coverage-enhanced terminal, a pilot is selected from the fourth pilot subset.

If the random access initiated by the terminal is a 2-step random access, it includes the following situations: if the terminal is a terminal of the first type and is a terminal with enhanced coverage, select a pilot from the first pilot subset; if the terminal is the first type terminal and is a non-coverage enhanced terminal, then select the pilot from the second pilot subset; if the terminal is the second type terminal and is a coverage enhanced terminal, select the pilot from the third pilot subset; if the terminal If the terminal is a terminal of the second type and is a non-coverage enhanced terminal, a pilot is selected from the fourth pilot subset.

Taking P pilots included in the second pilot set corresponding to ordinary UEs as an example, terminals that do not support coverage enhancement use the first P1 of the P ordinary UE pilots, and ordinary UEs that support coverage enhancement use P ordinary UE pilots. The last P-P1 in the frequency; take the corresponding first pilot set of the above-mentioned RedCap UE as an example, the RedCap UE that does not support coverage enhancement uses the first S1 of the S RedCap UE pilots, and the RedCap UE that supports coverage enhancement Use the last S-S1 of the S RedCap UE pilots.

The pilot index (preamble index) of the ordinary UE that does not support coverage enhancement is P1, and the starting point of the pilot index is 0, that is, the PI pilots belong to the above-mentioned fourth pilot subset;

The pilot index (preamble index) of the ordinary UE that supports coverage enhancement is P-P1, and the starting point of the pilot index is P1, that is, the P-P1 pilots belong to the above-mentioned second pilot subset;

The pilot index (preamble index) of the RedCap UE that does not support coverage enhancement is S1, and the starting point of the pilot index is P, that is, the P pilots belong to the above-mentioned third pilot subset;

The pilot index (preamble index) of the RedCap UE that supports coverage enhancement is S-S1, and the starting point of the pilot index is P+S1, that is, the S-S1 pilots belong to the above-mentioned first pilot subset.

The pilot index (preamble index) of the ordinary UE that does not support coverage enhancement is P1, and the starting point of the pilot index is

That is, the PI pilots belong to the above-mentioned fourth pilot subset;

The pilot index (preamble index) of the common UE that supports coverage enhancement is P-P1, and the starting point of the pilot index is

That is, the P-P1 pilots belong to the above-mentioned second pilot subset;

The pilot index (preamble index) of the RedCap UE that does not support coverage enhancement is S1, and the starting point of the pilot index is

That is, the P pilots belong to the above-mentioned third pilot subset;

The pilot index (preamble index) of the RedCap UE that supports coverage enhancement is S-S1, and the starting point of the pilot index is

That is, the S-S1 pilots belong to the above-mentioned first pilot subset.

Among them, N, P, P1, S, S1 and

Can be indicated or predefined by the network device. It should be noted that the above-mentioned parameters for 4-step random access and the above-mentioned parameters for 2-step random access can be the same, for example, the above parameters are shared; they can also be different, for example, the network equipment is 4-step Random access and 2-step random access configure two different sets of parameters independently.

The above method takes the first P1 of the P pilots (or the first S1 of the S pilots) used by a terminal that does not support coverage enhancement as an example. In fact, it can also be that a terminal that supports coverage enhancement uses the first P of the P pilots. P1 (or the first S1 of the S pilots), the technical effects of the two are the same; in addition, other parameters can also be used to represent the combined parameters, such as P2 instead of P-P1, or S2 instead of S-S1 , also has the same technical effect.

Correspondingly, before the terminal sends a pilot to the network device in the corresponding RO, if the terminal selects an RO from the first RO subset, the terminal is a first-type terminal and a coverage-enhanced terminal; if the terminal selects an RO from the second RO subset If the RO is selected collectively, the terminal is a second type terminal and a non-coverage enhanced terminal.

Method 2: Subset the first RO set corresponding to the first type of terminal and subset the second RO set corresponding to the second type of terminal, so that the first RO set includes the first RO subset and the second RO set. The RO subset, the second RO subset includes a third RO subset and a fourth RO subset, where the first RO subset and the third RO subset correspond to terminals with enhanced coverage, and the second RO subset and the fourth RO subset The subset corresponds to non-coverage enhanced terminals. That is, it indicates that a part of ROs in the first RO set is only used by terminals that support coverage enhancement, indicates that another part is only used by terminals that do not support coverage enhancement, and indicates that a part of ROs in the second RO set is only used by terminals that support coverage enhancement Used, indicating that the other part is only used by terminals that do not support coverage enhancement.

Correspondingly, before the terminal sends a pilot to the network device in the corresponding RO, if the terminal is a first type terminal and a coverage enhanced terminal, the terminal selects an RO from the first RO subset, if the terminal is a first type terminal and If the terminal is a non-coverage enhanced terminal, the terminal selects an RO from the second RO subset. If the terminal is a second type terminal and is a coverage enhanced terminal, the terminal selects an RO from the third RO subset. If the terminal is a second type terminal And it is a non-coverage enhanced terminal, then the terminal selects an RO from the fourth RO subset.

S702: The network device determines the type of the terminal according to the pilot set to which the pilot belongs.

Wherein, if the pilot belongs to the first pilot set, the network device determines that the terminal is a first type terminal, and if the pilot belongs to the second pilot set, the network device determines that the terminal is a second type terminal.

Optionally, if the RO set where the pilot is located is further divided, the network device may also determine the type of random access initiated by the terminal according to the RO where the pilot sent by the terminal is located. Wherein, if the RO where the pilot is located belongs to the first RO set, the random access initiated by the terminal is a 4-step random access; if the RO where the pilot is located belongs to the second RO set, then the random access initiated by the terminal is 2-step random access.

Optionally, the available first pilot set is further divided, and the available second pilot set is also further divided, so that the first pilot set includes the first pilot subset and the second pilot subset, and the second The pilot set includes the third pilot subset and the fourth pilot subset, and the network device determines whether the first type terminal and the second type terminal support coverage enhancement according to the pilot sent by the terminal, wherein, if the pilot belongs to the first a pilot subset, the network device determines that the terminal is a first type terminal with enhanced coverage; if the pilot sent by the terminal belongs to the second pilot subset, the network device determines that the terminal is a second type terminal and is non-coverage Enhancement; if the pilot sent by the terminal belongs to the third pilot subset, the network device determines that the terminal is the second type of terminal and is coverage enhancement; if the pilot sent by the terminal belongs to the fourth pilot subset, the network device determines The terminal is a second type terminal and is non-coverage enhanced.

Optionally, if the first RO set is further divided so that the first RO set includes the first RO subset and the second RO subset, if the RO where the pilot sent by the terminal belongs to the first RO subset, the network device Determine that the terminal is a coverage-enhanced terminal and it is a 4-step random access; if the RO where the pilot sent by the terminal belongs to the second RO subset, the network device determines that the terminal is a non-coverage-enhanced terminal and it is a 2-step random access enter.

Optionally, if the first RO set is further divided so that the first RO set includes the first RO subset and the second RO subset, the second RO set is further divided so that the second RO set includes the third RO subset and the fourth RO subset, if the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is a terminal with enhanced coverage and is a 4-step random access; if the pilot sent by the terminal is in the If the RO belongs to the second RO subset, the network device determines that the terminal is a non-coverage enhanced terminal and is a 4-step random access; if the RO where the pilot sent by the terminal belongs to the third RO subset, the network device determines that the The terminal is coverage-enhanced and 2-step random access; if the RO where the pilot sent by the terminal belongs to the fourth RO subset, the network device determines that the terminal is non-coverage-enhanced and 2-step random access.

In another embodiment of the present disclosure, the network device can identify whether the terminal is a first-type terminal or a second-type terminal according to the set of pilots sent by the terminal, which is beneficial for the network device to perform corresponding scheduling configurations for different types of terminals, which improves network security. resource utilization.

FIG. 8 exemplarily shows a schematic diagram of 4-step random access signaling interaction implemented based on FIG. 7 .

S801: The terminal sends Msg1 to the network device;

S802: The network device determines the type of the terminal according to the pilot set to which the pilot belongs;

S803: The network device determines the random access type initiated by the terminal according to the RO where the pilot is located;

S804: The network device determines whether the terminal is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs;

Wherein, steps S801, S802, S803, and S804 refer to the relevant description in FIG. 6, and S803 and S804 are optional steps.

S805: The network device sends Msg2, wherein Msg2 carries RAR, and is used to notify the terminal whether access is possible;

S806: The terminal sends Msg3 to the network device;

In this step, the terminal sends Msg3 to the network device according to the received Msg2, wherein Msg3 carries an RRC request.

S807: The network device sends Msg4 to the terminal;

FIG. 9 exemplarily shows a schematic diagram of two-step random access signaling interaction based on FIG. 7 .

S901: The terminal sends MsgA to the network device, wherein MsgA carries a pilot and a physical uplink shared channel;

S902: The network device identifies the terminal type according to the pilot set to which the pilot belongs;

S903: The network device distinguishes the random access type according to the RO where the pilot is located;

S904: The network device distinguishes whether the coverage is enhanced according to the pilot subset to which the pilot belongs;

Wherein, steps S901, S902, S903, and S904 refer to the relevant description in FIG. 6, and S903 and S904 are optional steps.

S905: The network device sends the MsgB to the terminal.

Fig. 10 exemplifies the structure of the network device in the embodiment of the present disclosure. Based on this structure, the network device can identify the type of the terminal according to the RO where the pilot sent by the terminal is located, that is, determine whether the terminal is a first-type terminal or a second-type terminal.

As shown in FIG. 10 , the network device includes a receiving module 1001 and a processing module 1002 .

The receiving module 1001 is configured to receive the pilot frequency sent by the terminal;

The processing module 1002 is configured to determine the type of the terminal according to the random access channel opportunity RO where the pilot is located; wherein, if the RO belongs to the first RO set, the terminal is a first type terminal, if If the RO belongs to the second RO set, the terminal is the second type of terminal, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set and the second RO set The configuration information of the RO set is different.

Optionally, the processing module 1002 is also used for:

Determine the type of random access initiated by the terminal according to the pilot sent by the terminal; wherein, if the pilot belongs to the first pilot set, the random access initiated by the terminal is a 4-step random access , if the pilot belongs to the second pilot set, the random access initiated by the terminal is a 2-step random access, and the first pilot set and the second pilot set have no intersection.

Optionally, the first pilot set includes a first pilot subset and a second pilot subset, the first pilot subset corresponds to a terminal with enhanced coverage, and the second pilot subset corresponds to Non-coverage enhanced terminal; the processing module 1002 is also used for:

If the pilot sent by the terminal belongs to the first pilot subset, it is determined that the terminal is a coverage-enhanced terminal and the random access initiated is a 4-step random access, and if the pilot sent by the terminal The pilot belongs to the second pilot subset, then the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the processing module 1002 Also used for:

If the pilot sent by the terminal belongs to the first pilot subset, it is determined that the terminal is a coverage enhancement terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal Belonging to the second pilot subset; determine that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal belongs to the third pilot subset, it is determined that the terminal is a coverage enhanced terminal and the random access initiated is a 2-step random access; if the pilot sent by the terminal belongs to the fourth pilot subset, it is determined that the terminal is not The random access initiated by the enhanced terminal is 2-step random access.

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The processing module 1002 is also used for:

If the RO where the pilot sent by the terminal belongs to the first RO subset, determine that the terminal is the first type terminal and is a coverage-enhanced terminal, if the pilot sent by the terminal If the RO where the frequency is located belongs to the second RO subset, then it is determined that the terminal is a terminal in the first type and is a non-CE terminal;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processing module 1002 is further configured to:

If the RO where the pilot sent by the terminal belongs to the first RO subset, determine that the terminal is the first type terminal and is a coverage-enhanced terminal; if the pilot sent by the terminal If the RO where the frequency belongs belongs to the second RO subset, it is determined that the terminal is the first type terminal and is a non-coverage enhanced terminal; if the RO where the pilot sent by the terminal belongs to the second RO subset Three RO subsets, then determine that the terminal is the second type terminal and a coverage-enhanced terminal; if the RO where the pilot sent by the terminal belongs to the fourth RO subset, then determine the The terminal is the second type terminal and is a non-coverage enhanced terminal.

Optionally, the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum number of receiving antennas of the first type terminal is different from the minimum number of receiving antennas of the second type terminal The number of receiving antennas is different.

Based on the same technical concept, the embodiments of the present disclosure further provide a terminal, which can realize the functions of the terminal side in the foregoing embodiments.

Fig. 11 exemplifies the structure of a terminal in an embodiment of the present disclosure. Based on this structure, the network device can identify the type of the terminal according to the pilot sent by the terminal, that is, determine whether the terminal is a first-type terminal or a second-type terminal.

As shown in FIG. 11 , the terminal includes a sending module 1101 and a processing module 1102 .

A sending module 1101, configured to send a pilot to a network device in a random access channel opportunity RO corresponding to the type of the terminal;

A processing module 1102, configured to send the pilot in ROs in the first RO set if the terminal is a first type terminal, and send the pilot in ROs in a second RO set if the terminal is a second type terminal The pilot is sent in an RO, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set.

Optionally, before the processing module 1102 sends the pilot to the network device according to the RO corresponding to the type of the terminal, the processing module 1102 is further configured to:

Select the corresponding pilot according to the type of random access to be initiated; wherein, if the random access to be initiated is a 4-step random access, select a pilot from the first pilot set, and if the random access to be initiated The random access of is 2-step random access, then select a pilot from a second pilot set, and the first pilot set has no intersection with the second pilot set.

Optionally, the first pilot set includes a first pilot subset and a second pilot subset, the first pilot subset corresponds to a terminal with enhanced coverage, and the second pilot subset corresponds to Non-coverage enhanced terminal; the processing module 1102 is specifically used for:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, select a pilot from the first pilot subset; if the random access to be initiated by the terminal is a 4-step random access and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the processing module 1102 Specifically for:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, select a pilot from the first pilot subset; if the random access to be initiated by the terminal It is a 4-step random access and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the random access to be initiated by the terminal is a 2-step random access and the If the terminal is a coverage-enhanced terminal, select a pilot from the third pilot subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal is a non-coverage-enhanced terminal, select a pilot from the third pilot subset; A pilot is selected from the fourth pilot subset.

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The processing module 1102 sends a pilot to the network device in the RO corresponding to the type of the terminal, and the processing module 1102 is specifically used for:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, select an RO from the first RO subset; if the terminal is the second type terminal and the terminal is not For a terminal with enhanced coverage, select an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processing module 1102 is specifically configured to:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, select an RO from the first RO subset; if the terminal is the first type terminal and the terminal is not For a terminal with enhanced coverage, select an RO from the second RO subset; if the terminal is the second type of terminal and the terminal is a terminal with enhanced coverage, select an RO from the third RO subset; If the terminal is the second type terminal and the terminal is not a coverage-enhanced terminal, select an RO from the fourth RO subset.

Fig. 12 exemplifies the structure of another network device in the embodiment of the present disclosure. Based on this structure, the network device can identify the type of the terminal according to the RO where the pilot sent by the terminal is located, that is, determine whether the terminal is a first-type terminal or a second-type terminal.

As shown in FIG. 12 , the network device includes a receiving module 1201 and a determining module 1202 .

The receiving module 1201 is configured to receive the pilot sent by the terminal, and the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The processing module 1202 is configured to determine the type of the terminal according to the pilot set to which the pilot belongs; wherein, if the pilot belongs to the first pilot set, the terminal is the first type terminal, If the pilot belongs to the second pilot set, the terminal is the second type terminal, and the first pilot set and the second pilot set have no intersection.

The processing module 1202 is also used for:

Determine the type of random access initiated by the terminal according to the RO where the pilot is located; wherein, if the RO where the pilot is located belongs to the first RO set, then the random access initiated by the terminal is 4 1-step random access, if the RO where the pilot is located belongs to the second RO set, then the random access initiated by the terminal is 2-step random access.

The processing module 1202 is also used for:

If the RO where the pilot sent by the terminal belongs to the first RO set, determine the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs, wherein, if If the pilot belongs to the first pilot subset, the terminal is a terminal of the first type and is a terminal with enhanced coverage; if the pilot belongs to the second subset of pilots, the terminal is a terminal of the first type And it is a non-coverage enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second type terminal and is a coverage enhanced terminal; if the pilot belongs to the fourth pilot subset, Then the terminal is a second type terminal and is a non-coverage enhanced terminal.

Optionally, the processing module 1202 is also used for:

If the RO where the pilot sent by the terminal belongs to the second RO set, determine the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs, wherein, if If the pilot belongs to the first pilot subset, the terminal is a terminal of the first type and is a terminal with enhanced coverage; if the pilot belongs to the second subset of pilots, the terminal is a terminal of the first type And it is a non-coverage enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second type terminal and is a coverage enhanced terminal; if the pilot belongs to the fourth pilot subset, Then the terminal is a second type terminal and is a non-coverage enhanced terminal.

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The processing module 1202 is also used for:

If the RO where the pilot sent by the terminal belongs to the first RO subset, it is determined that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if the terminal sends If the RO where the pilot is located belongs to the second RO subset, it is determined that the terminal is a non-coverage enhanced terminal and the initiated random access is a 2-step random access;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processing module 1202 is further configured to:

If the RO where the pilot sent by the terminal belongs to the first RO subset, then the determined terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if the terminal The RO where the sent pilot is located belongs to the second RO subset, then it is determined that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if the terminal sends the The RO where the pilot is located belongs to the third RO subset, then it is determined that the terminal is a coverage-enhanced terminal and the random access initiated is a 2-step random access; if the RO where the pilot is sent by the terminal If it belongs to the fourth RO subset, it is determined that the terminal is a non-coverage enhanced terminal and the initiated random access is 2-step random access.

Fig. 13 exemplifies the structure of another terminal in the embodiment of the present disclosure. Based on this structure, the network device can identify the type of the terminal according to the pilot sent by the terminal, that is, determine whether the terminal is a first-type terminal or a second-type terminal.

As shown in FIG. 13 , the terminal includes a sending module 1301 and a processing module 1302 .

The sending module 1301 is configured to send a pilot corresponding to the type of the terminal to the network device, where the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The processing module 1302 is configured to: if the terminal is the first type terminal, the pilot belongs to the first pilot set; if the terminal is the second type terminal, the pilot belongs to the second set A set of pilots, where the first set of pilots does not overlap with the second set of pilots.

Before the processing module 1302 sends the pilot corresponding to the type of the terminal to the network device, the processing module 1302 is further configured to:

According to the type of random access to be initiated by the terminal, select an RO from the first RO set or the second RO set; wherein, if the random access to be initiated is a 4-step random access, then Select an RO from the first RO set; if the random access to be initiated is a 2-step random access, select an RO from the second RO set.

Optionally, the processing module 1302 is also used to:

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The processing module 1302 is specifically used for:

If the random access to be initiated by the terminal is 4-step random access and the terminal is a coverage-enhanced terminal, select an RO from the first RO subset; if the random access to be initiated by the terminal is 4 random access and the terminal is a non-coverage enhanced terminal, select an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and all The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the RO subset correspond to non-coverage-enhanced terminals; the processing module 1302 is specifically configured to:

If the random access to be initiated by the terminal is 4-step random access and the terminal is a coverage-enhanced terminal, select an RO from the first RO subset; if the random access to be initiated by the terminal is 4 1-step random access and the terminal is a non-coverage-enhanced terminal, select an RO from the second RO subset; if the random access to be initiated by the terminal is 2-step random access and the terminal is coverage-enhanced , select an RO from the third RO subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal is a non-coverage enhanced terminal, select an RO from the fourth RO subset Select RO centrally.

Fig. 14 exemplarily shows a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.

As shown in the figure, the device may include: a processor 1401 , a memory 1402 and a bus interface 1403 .

The processor 1401 is responsible for managing the bus architecture and general processing, and the memory 1402 can store data used by the processor 1403 when performing operations.

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1401 and various circuits of the memory represented by the memory 1402 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 1401 is responsible for managing the bus architecture and general processing, and the memory 1402 can store data used by the processor 1401 when performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 1401 or implemented by the processor 1401 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1401 or instructions in the form of software. The processor 1401 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present disclosure may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1402, and the processor 1401 reads the information in the memory 1402, and completes the steps of the information processing flow in combination with its hardware.

Specifically, the processor 1401 is configured to read computer instructions in the memory 1402 and perform the following processes:

receiving the pilot frequency sent by the terminal;

According to the random access channel opportunity RO where the pilot is located, determine the type of the terminal; wherein, if the RO belongs to the first RO set, the terminal is the first type of terminal, and if the RO belongs to the second RO set RO set, the terminal is a second type terminal, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set same.

Optionally, the processor 1401 is further configured to:

Optionally, the first pilot set includes a first pilot subset and a second pilot subset, the first pilot subset corresponds to a terminal with enhanced coverage, and the second pilot subset corresponds to Non-coverage enhanced terminal; the processor 1401 is also used to:

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the processor 1401 Also used for:

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The processor 1401 is also used for:

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processor 1401 is further configured to:

Fig. 15 exemplarily shows a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.

As shown in the figure, the device is applied to a terminal and may include: a processor 1501 , a memory 1502 and a bus interface 1503 .

The processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1502 can store data used by the processor 1503 when performing operations.

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1501 and various circuits of the memory represented by the memory 1502 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1502 can store data used by the processor 1501 when performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 1501 or implemented by the processor 1501 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1501 or instructions in the form of software. The processor 1501 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in the embodiments of the present disclosure may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1502, and the processor 1501 reads the information in the memory 1502, and completes the steps of the information processing flow in combination with its hardware.

Specifically, the processor 1501 is configured to read computer instructions in the memory 1502 and perform the following processes:

sending a pilot to a network device in a random access channel opportunity RO corresponding to the type of the terminal;

Optionally, before the processor 1501 sends the pilot to the network device according to the RO corresponding to the type of the terminal, the processor 1501 is further configured to:

Optionally, the first pilot set includes a first pilot subset and a second pilot subset, the first pilot subset corresponds to a terminal with enhanced coverage, and the second pilot subset corresponds to Non-coverage enhanced terminal; the processor 1501 is specifically used for:

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the processor 1501 Specifically for:

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The processor 1501 sends a pilot to the network device in the RO corresponding to the type of the terminal, and the processor 1501 is specifically configured to:

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to a coverage-enhanced terminal, and the second RO subset and the fourth RO subset correspond to a non-coverage-enhanced terminal; The network device sends the pilot, and the processor 1501 is specifically configured to:

Fig. 16 exemplarily shows a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.

As shown in the figure, the device may include: a processor 1601 , a memory 1602 and a bus interface 1603 .

The processor 1601 is responsible for managing the bus architecture and general processing, and the memory 1602 can store data used by the processor 1603 when performing operations.

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1601 and various circuits of the memory represented by the memory 1602 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 1601 is responsible for managing the bus architecture and general processing, and the memory 1602 can store data used by the processor 1601 when performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 1601 or implemented by the processor 1601 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1601 or instructions in the form of software. The processor 1601 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in the embodiments of the present disclosure may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1602, and the processor 1601 reads the information in the memory 1602, and completes the steps of the information processing flow in combination with its hardware.

Specifically, the processor 1601 is configured to read computer instructions in the memory 1602 and perform the following processes:

receiving the pilot sent by the terminal, where the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

Determining the type of the terminal according to the pilot set to which the pilot belongs; wherein, if the pilot belongs to the first pilot set, the terminal is the first type terminal, and if the pilot If the frequency belongs to the second pilot set, the terminal is the second type terminal, and the first pilot set and the second pilot set have no intersection.

The processor 1601 is also used for:

Optionally, the processor 1601 is further configured to:

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The processor 1601 is also used for:

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processor 1601 is further configured to:

If the RO where the pilot sent by the terminal belongs to the first RO subset, it is determined that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if the terminal sends If the RO where the pilot is located belongs to the second RO subset, it is determined that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal If the RO where the frequency belongs belongs to the third RO subset, then it is determined that the terminal is a terminal with enhanced coverage and the random access initiated is a 2-step random access; if the RO where the pilot sent by the terminal belongs to In the fourth RO subset, it is determined that the terminal is a non-coverage enhanced terminal and the initiated random access is a 2-step random access.

As shown in the figure, the device is applied to a terminal and may include: a processor 1701 , a memory 1702 and a bus interface 1703 .

The processor 1701 is responsible for managing the bus architecture and general processing, and the memory 1702 can store data used by the processor 1703 when performing operations.

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1701 and various circuits of the memory represented by the memory 1702 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 1701 is responsible for managing the bus architecture and general processing, and the memory 1702 can store data used by the processor 1701 when performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 1701 or implemented by the processor 1701 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1701 or instructions in the form of software. The processor 1701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in the embodiments of the present disclosure may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1702, and the processor 1701 reads the information in the memory 1702, and completes the steps of the information processing flow in combination with its hardware.

Specifically, the processor 1701 is configured to read computer instructions in the memory 1702 and perform the following processes:

Sending a pilot corresponding to the type of the terminal to the network device, where the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

Before the processor 1701 sends the pilot corresponding to the type of the terminal to the network device, the processor 1701 is further configured to:

Optionally, the processor 1701 is further configured to:

Optionally, the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to coverage-enhanced terminals, and the second RO subset corresponds to non-coverage-enhanced terminals ; The terminal sends a pilot corresponding to the type of the terminal to the network device, and the processor 1701 is specifically configured to:

It should be noted here that the above-mentioned communication device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect. The same parts and beneficial effects are described in detail.

An embodiment of the present disclosure also provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and the computer-executable instructions are used to make a computer execute the method for managing an Internet of Vehicles device in the foregoing embodiments.

An embodiment of the present disclosure further provides a computer program product, which, when invoked by a computer, causes the computer to execute the method for managing the Internet of Vehicles device in the foregoing embodiments.

Those skilled in the art should understand that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present disclosure. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, whereby the The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and equivalent technologies thereof, the present disclosure also intends to include these modifications and variations.

Claims

An access method, characterized by comprising:

The network device receives the pilot frequency sent by the terminal;

The network device determines the type of the terminal according to the random access channel opportunity RO where the pilot is located; wherein, if the RO belongs to the first RO set, the terminal is a first type terminal, and if the If the RO belongs to the second RO set, the terminal is the second type of terminal, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set and the second RO set configuration information is different.
The method according to claim 1, wherein the first type of terminal initiates random access in the first uplink bandwidth part BWP, the second type of terminal initiates random access in the second uplink BWP, and the second type of terminal initiates random access in the second uplink BWP. The configuration information of an uplink BWP includes configuration information of the first RO set, and the configuration information of the second uplink BWP includes configuration information of the second RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , The configuration information of the third uplink BWP includes configuration information of the first RO set and configuration information of the second RO set.
The method according to claim 1 or 2, characterized in that the method further comprises:

The network device determines the type of random access initiated by the terminal according to the pilot sent by the terminal; wherein, if the pilot belongs to the first pilot set, the random access initiated by the terminal is 4 1-step random access, if the pilot belongs to the second pilot set, the random access initiated by the terminal is 2-step random access, and the first pilot set does not overlap with the second pilot set .
The method according to claim 3, wherein the first pilot set includes a first pilot subset and a second pilot subset, and the first pilot subset corresponds to a terminal with enhanced coverage, The second pilot subset corresponds to a non-coverage enhanced terminal; the method further includes:

If the pilot sent by the terminal belongs to the first pilot subset, the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access, if the The pilot sent by the terminal belongs to the second pilot subset, then the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the method further includes :

If the pilot sent by the terminal belongs to the first pilot subset, then the network device determines that the terminal is a coverage enhancement terminal and the random access initiated is a 4-step random access; if the terminal sends The pilot belongs to the second pilot subset; then the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal If the frequency belongs to the third pilot subset, the network device determines that the terminal is a coverage enhancement terminal and the random access initiated is a 2-step random access; if the pilot sent by the terminal belongs to the fourth pilot subset, the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 2-step random access.
The method according to claim 1 or 2, wherein the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to a terminal with enhanced coverage, and the The second RO subset corresponds to non-coverage enhanced terminals; the method further includes:

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is the first type terminal and is a coverage-enhanced terminal, and if the terminal sends The RO where the pilot is located belongs to the second RO subset, then the network device determines that the terminal is a terminal in the first type and is a non-CE terminal;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the method further includes:

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is the first type terminal and is a coverage-enhanced terminal; if the terminal sends The RO where the pilot is located belongs to the second RO subset, then the network device determines that the terminal is the first type terminal and is a non-coverage enhanced terminal; if the pilot sent by the terminal If the RO where the frequency belongs belongs to the third RO subset, the network device determines that the terminal is the second type terminal and is a coverage-enhanced terminal; if the RO where the pilot sent by the terminal belongs to In the fourth RO subset, the network device determines that the terminal is the second type terminal and is not a coverage-enhanced terminal.
The method according to claim 1 or 2, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum receiving bandwidth of the first type terminal The number of antennas is different from the minimum number of receiving antennas for the second type of terminal.
An access method, characterized by comprising:

The terminal sends a pilot to the network device in a random access channel opportunity RO corresponding to the type of the terminal;

Wherein, if the terminal is a first type terminal, the pilot is sent in ROs in the first RO set, and if the terminal is a second type terminal, then the pilot is sent in ROs in the second RO set The pilot, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set.
The method according to claim 7, wherein the terminal of the first type initiates random access in the first uplink bandwidth part BWP, the terminal of the second type initiates random access in the second uplink BWP, and the second type of terminal initiates random access in the second uplink BWP. The configuration information of an uplink BWP includes configuration information of the first RO set, and the configuration information of the second uplink BWP includes configuration information of the second RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , The configuration information of the third uplink BWP includes configuration information of the first RO set and configuration information of the second RO set.
The method according to claim 7 or 8, wherein, before the terminal sends the pilot to the network device according to the RO corresponding to the type of the terminal, the method further comprises:

The terminal selects the corresponding pilot according to the type of the random access to be initiated; wherein, if the random access to be initiated is a 4-step random access, select the pilot from the first pilot set, if the If the random access to be initiated is a 2-step random access, a pilot is selected from a second pilot set, and the first pilot set has no intersection with the second pilot set.
The method according to claim 9, wherein the first pilot set includes a first pilot subset and a second pilot subset, and the first pilot subset corresponds to a terminal with enhanced coverage, The second pilot subset corresponds to a non-coverage enhanced terminal; the terminal selects the corresponding pilot, including:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, then the terminal selects a pilot from the first pilot subset; if the terminal is to initiate The random access is a 4-step random access and the terminal is a non-coverage enhanced terminal, then the terminal selects a pilot from the second pilot subset;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the terminal selection corresponds to pilots, including:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, then the terminal selects a pilot from the first pilot subset; if the terminal is to initiate The random access is 4-step random access and the terminal is a non-coverage-enhanced terminal, then the terminal selects a pilot from the second pilot subset; if the random access to be initiated by the terminal is 2-step random access and the terminal is a coverage-enhanced terminal, then the terminal selects a pilot from the third pilot subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal If the terminal is a non-coverage enhanced terminal, the terminal selects a pilot from the fourth pilot subset.
The method according to claim 7 or 8, wherein the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to a terminal with enhanced coverage, the The second RO subset corresponds to a non-coverage enhanced terminal; the terminal sends a pilot to the network device in the RO corresponding to the type of the terminal, including:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, the terminal selects an RO from the first RO subset; if the terminal is the second type terminal and the If the terminal is a non-coverage enhanced terminal, the terminal selects an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to a coverage-enhanced terminal, and the second RO subset and the fourth RO subset correspond to a non-coverage-enhanced terminal; Network devices send pilots, including:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, the terminal selects an RO from the first RO subset; if the terminal is the first type terminal and the If the terminal is a non-coverage enhanced terminal, the terminal selects an RO from the second RO subset; if the terminal is the second type terminal and the terminal is a coverage enhanced terminal, then the terminal selects an RO from the second RO subset. Select an RO from the third RO subset; if the terminal is the second type terminal and the terminal is a non-coverage enhanced terminal, then the terminal selects an RO from the fourth RO subset.
The method according to claim 7 or 8, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and the minimum number of receiving antennas of the first type terminal is The minimum number of receiving antennas of the second type of terminal is different.
An access method, characterized by comprising:

The network device receives the pilot sent by the terminal, and the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The network device determines the type of the terminal according to the pilot set to which the pilot belongs; wherein, if the pilot belongs to the first pilot set, the terminal is the first type terminal, and if the If the pilot belongs to the second pilot set, the terminal is the second type terminal, and the first pilot set and the second pilot set have no intersection.
The method according to claim 13, wherein the first type terminal initiates random access in the first uplink bandwidth part BWP, the second type terminal initiates random access in the second uplink BWP, and the second The configuration information of the first uplink BWP or the configuration information of the second uplink BWP includes the configuration information of the RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , the configuration information of the third uplink BWP includes the configuration information of the RO set.
The method according to claim 13 or 14, wherein the RO set includes a first RO set and a second RO set, and the first RO set has no intersection with the second RO set, or the first RO set The configuration information of an RO set is different from the configuration information of the second RO set;

The method also includes:

The network device determines the type of random access initiated by the terminal according to the RO where the pilot is located; wherein, if the RO where the pilot is located belongs to the first RO set, the random access initiated by the terminal The access is 4-step random access, and if the RO where the pilot is located belongs to the second RO set, the random access initiated by the terminal is 2-step random access.
The method according to claim 15, wherein the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset set and a fourth pilot subset, the first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset corresponds to the fourth pilot subset Non-coverage enhanced terminals;

The method also includes:

If the RO where the pilot sent by the terminal belongs to the first RO set, the network device determines the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs , wherein, if the pilot belongs to the first pilot subset, the terminal is a first-type terminal and a coverage-enhanced terminal; if the pilot belongs to the second pilot subset, the terminal is The first type of terminal is a non-coverage-enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second-type terminal and is a coverage-enhanced terminal; if the pilot belongs to the fourth pilot frequency subset, the terminal is a second type terminal and is a non-coverage enhanced terminal.
The method according to claim 16, further comprising:

If the RO where the pilot sent by the terminal belongs to the second RO set, the network device determines the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs , wherein, if the pilot belongs to the first pilot subset, the terminal is a first-type terminal and a coverage-enhanced terminal; if the pilot belongs to the second pilot subset, the terminal is The first type of terminal is a non-coverage-enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second-type terminal and is a coverage-enhanced terminal; if the pilot belongs to the fourth pilot frequency subset, the terminal is a second type terminal and is a non-coverage enhanced terminal.
The method according to claim 13 or 14, wherein the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to a terminal with enhanced coverage, and the The second RO subset corresponds to non-coverage enhanced terminals; the method further includes:

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if The RO where the pilot sent by the terminal belongs to the second RO subset, then the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 2-step random access;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the method further includes:

If the RO where the pilot sent by the terminal belongs to the first RO subset, the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if The RO where the pilot sent by the terminal belongs to the second RO subset, then the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if The RO where the pilot sent by the terminal belongs to the third RO subset, then the network device determines that the terminal is a terminal with enhanced coverage and the random access initiated is a 2-step random access; if the If the RO where the pilot sent by the terminal belongs to the fourth RO subset, the network device determines that the terminal is a non-coverage enhanced terminal and the random access initiated is a 2-step random access.
The method according to claim 13 or 14, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum receiving bandwidth of the first type terminal Number of antennas The minimum number of receiving antennas of the second type of terminal is different.
An access method, characterized by comprising:

The terminal sends a pilot corresponding to the type of the terminal to the network device, and the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

Wherein, if the terminal is the first type terminal, the pilot belongs to a first pilot set, and if the terminal is the second type terminal, the pilot belongs to a second pilot set, The first set of pilots has no intersection with the second set of pilots.
The method according to claim 20, wherein the first type terminal initiates random access in the first uplink bandwidth part BWP, the second type terminal initiates random access in the second uplink BWP, and the second The configuration information of the first uplink BWP or the configuration information of the second uplink BWP includes the configuration information of the RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , the configuration information of the third uplink BWP includes the configuration information of the RO set.
The method according to claim 20 or 21, wherein the RO set includes a first RO set and a second RO set, and the first RO set has no intersection with the second RO set, or the first RO set has no intersection with the second RO set, or the first RO set The configuration information of an RO set is different from the configuration information of the second RO set;

Before the terminal sends the pilot corresponding to the type of the terminal to the network device, the method further includes:

The terminal selects an RO from the first RO set or the second RO set according to the type of random access to be initiated by the terminal; wherein, if the random access to be initiated is a 4-step random access If the random access to be initiated is 2-step random access, select an RO from the second RO set.
The method according to claim 22, wherein the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset set and a fourth pilot subset, the first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset corresponds to the fourth pilot subset Non-coverage enhanced terminals;

Before the terminal sends the pilot corresponding to the type of the terminal to the network device, the method further includes:

If the random access initiated by the terminal is a 4-step random access and the terminal is a first-type terminal and the terminal is a coverage-enhanced terminal, select a pilot from the first pilot subset; if the The random access initiated by the terminal is a 4-step random access and the terminal is a first type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the The random access initiated by the terminal is a 4-step random access and the terminal is a second-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the third pilot subset; if the terminal initiates If the random access is 4-step random access and the terminal is a second type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the fourth pilot subset.
The method according to claim 23, further comprising:

If the random access initiated by the terminal is a 2-step random access and the terminal is a first-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the first pilot subset; if the The random access initiated by the terminal is a 2-step random access and the terminal is a first type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the The random access initiated by the terminal is a 2-step random access and the terminal is a second-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the third pilot subset; if the terminal initiates If the random access is 2-step random access and the terminal is a second type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the fourth pilot subset.
The method according to claim 20 or 21, wherein the first RO set includes a first RO subset and a second RO subset, the first RO subset corresponds to a terminal with enhanced coverage, and the The second RO subset corresponds to a non-coverage enhanced terminal; the terminal sends a pilot corresponding to the type of the terminal to the network device, including:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, the terminal selects an RO from the first RO subset; if the random access to be initiated by the terminal input is 4-step random access and the terminal is a non-coverage enhanced terminal, then the terminal selects an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and all The third RO subset corresponds to a coverage-enhanced terminal, and the second RO subset and the RO subset correspond to a non-coverage-enhanced terminal; the terminal sends a pilot corresponding to the type of the terminal to the network device ,include:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, the terminal selects an RO from the first RO subset; if the random access to be initiated by the terminal If the input is a 4-step random access and the terminal is a non-coverage enhanced terminal, the terminal selects an RO from the second RO subset; if the random access to be initiated by the terminal is a 2-step random access and The terminal is a coverage-enhanced terminal, and the terminal selects an RO from the third RO subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal is a non-coverage-enhanced terminal , the terminal selects an RO from the fourth RO subset.
The method according to claim 20 or 21, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum receiving bandwidth of the first type terminal Number of antennas The minimum number of receiving antennas of the second type of terminal is different.
A communication device, characterized by comprising: a processor, a memory;

the memory stores computer instructions;

The processor is configured to read the computer instructions and perform the following operations:

receiving the pilot frequency sent by the terminal;

According to the random access channel opportunity RO where the pilot is located, determine the type of the terminal; wherein, if the RO belongs to the first RO set, the terminal is the first type of terminal, and if the RO belongs to the second RO set RO set, the terminal is a second type terminal, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set same.
The communication device according to claim 27, wherein the terminal of the first type initiates random access in the first uplink bandwidth part BWP, the terminal of the second type initiates random access in the second uplink BWP, and the The configuration information of the first uplink BWP includes configuration information of the first RO set, and the configuration information of the second uplink BWP includes configuration information of the second RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , The configuration information of the third uplink BWP includes configuration information of the first RO set and configuration information of the second RO set.
The communication device according to claim 27 or 28, wherein the processor is further configured to:

Determine the type of random access initiated by the terminal according to the pilot sent by the terminal; wherein, if the pilot belongs to the first pilot set, the random access initiated by the terminal is a 4-step random access , if the pilot belongs to the second pilot set, the random access initiated by the terminal is a 2-step random access, and the first pilot set and the second pilot set have no intersection.
According to the communication device according to claim 29, the first pilot set includes a first pilot subset and a second pilot subset, the first pilot subset corresponds to a terminal with enhanced coverage, and the first pilot subset corresponds to a terminal with enhanced coverage. The two pilot subsets correspond to non-coverage enhanced terminals; it is characterized in that the processor is also used for:

If the pilot sent by the terminal belongs to the first pilot subset, it is determined that the terminal is a coverage-enhanced terminal and the random access initiated is a 4-step random access, and if the pilot sent by the terminal The pilot belongs to the second pilot subset, then the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the processor further Used for:

If the pilot sent by the terminal belongs to the first pilot subset, it is determined that the terminal is a coverage enhancement terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal Belonging to the second pilot subset; determine that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal belongs to the third pilot subset, it is determined that the terminal is a coverage enhanced terminal and the random access initiated is a 2-step random access; if the pilot sent by the terminal belongs to the fourth pilot subset, it is determined that the terminal is not The random access initiated by the enhanced terminal is 2-step random access.
The communication device according to claim 27 or 28, wherein the first RO set includes a first RO subset and a second RO subset, and the first RO subset corresponds to a terminal with enhanced coverage, so The second RO subset corresponds to a non-coverage enhanced terminal; the processor is further configured to:

If the RO where the pilot sent by the terminal belongs to the first RO subset, determine that the terminal is the first type terminal and is a coverage-enhanced terminal, if the pilot sent by the terminal If the RO where the frequency is located belongs to the second RO subset, then it is determined that the terminal is a terminal in the first type and is a non-CE terminal;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processor is further configured to:

If the RO where the pilot sent by the terminal belongs to the first RO subset, determine that the terminal is the first type terminal and is a coverage-enhanced terminal; if the pilot sent by the terminal If the RO where the frequency belongs belongs to the second RO subset, it is determined that the terminal is the first type terminal and is a non-coverage enhanced terminal; if the RO where the pilot sent by the terminal belongs to the second RO subset Three RO subsets, then determine that the terminal is the second type terminal and a coverage-enhanced terminal; if the RO where the pilot sent by the terminal belongs to the fourth RO subset, then determine the The terminal is the second type terminal and is a non-coverage enhanced terminal.
The communication device according to claim 27 or 28, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum bandwidth of the first type terminal The number of receiving antennas is different from the minimum number of receiving antennas of the second type of terminal.
A communication device, characterized in that it is applied to a terminal, including: a processor and a memory;

the memory stores computer instructions;

The processor is configured to read the computer instructions and perform the following operations:

sending a pilot to a network device in a random access channel opportunity RO corresponding to the type of the terminal;

Wherein, if the terminal is a first type terminal, the pilot is sent in ROs in the first RO set, and if the terminal is a second type terminal, then the pilot is sent in ROs in the second RO set The pilot, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set.
The communication device according to claim 33, wherein the terminal of the first type initiates random access in the first uplink bandwidth part BWP, the terminal of the second type initiates random access in the second uplink BWP, and the The configuration information of the first uplink BWP includes configuration information of the first RO set, and the configuration information of the second uplink BWP includes configuration information of the second RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , The configuration information of the third uplink BWP includes configuration information of the first RO set and configuration information of the second RO set.
The communication device according to claim 33 or 34, wherein the processor is further configured to: before sending the pilot to the network device according to the RO corresponding to the type of the terminal:

Select the corresponding pilot according to the type of random access to be initiated; wherein, if the random access to be initiated is a 4-step random access, select a pilot from the first pilot set, and if the random access to be initiated The random access of is 2-step random access, then select a pilot from a second pilot set, and the first pilot set has no intersection with the second pilot set.
The communication device according to claim 35, wherein the first pilot set includes a first pilot subset and a second pilot subset, and the first pilot subset corresponds to a terminal with enhanced coverage , the second pilot subset corresponds to a non-coverage enhanced terminal; the processor is specifically configured to:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, select a pilot from the first pilot subset; if the random access to be initiated by the terminal is a 4-step random access and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset;

Alternatively, the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot subset and a fourth pilot subset, the The first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, and the second pilot subset and the fourth pilot subset correspond to non-coverage-enhanced terminals; the processor specifically Used for:

If the random access to be initiated by the terminal is a 4-step random access and the terminal is a coverage-enhanced terminal, select a pilot from the first pilot subset; if the random access to be initiated by the terminal It is a 4-step random access and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the random access to be initiated by the terminal is a 2-step random access and the If the terminal is a coverage-enhanced terminal, select a pilot from the third pilot subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal is a non-coverage-enhanced terminal, select a pilot from the third pilot subset; A pilot is selected from the fourth pilot subset.
The communication device according to claim 33 or 34, wherein the first RO set includes a first RO subset and a second RO subset, and the first RO subset corresponds to a terminal with enhanced coverage, so The second RO subset corresponds to a non-coverage enhanced terminal; the processor sends a pilot to the network device in the RO corresponding to the type of the terminal, and the processor is specifically configured to:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, select an RO from the first RO subset; if the terminal is the second type terminal and the terminal is not For a terminal with enhanced coverage, select an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processor is specifically configured to:

If the terminal is the first type terminal and the terminal is a coverage enhanced terminal, select an RO from the first RO subset; if the terminal is the first type terminal and the terminal is not For a terminal with enhanced coverage, select an RO from the second RO subset; if the terminal is the second type of terminal and the terminal is a terminal with enhanced coverage, select an RO from the third RO subset; If the terminal is the second type terminal and the terminal is not a coverage-enhanced terminal, select an RO from the fourth RO subset.
The communication device according to claim 33 or 34, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and the minimum number of receiving antennas of the first type terminal The minimum numbers of receiving antennas of the second type terminals are different.
A communication device, characterized by comprising: a processor, a memory;

the memory stores computer instructions;

The processor is configured to read the computer instructions and perform the following operations:

receiving the pilot sent by the terminal, where the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

Determine the type of the terminal according to the pilot set to which the pilot belongs; wherein, if the pilot belongs to the first pilot set, the terminal is the first type of terminal, and if the pilot belongs to the second pilot set, the terminal is the second type terminal, and the first pilot set and the second pilot set have no intersection.
The communication device according to claim 39, wherein the terminal of the first type initiates random access in the first uplink bandwidth part BWP, the terminal of the second type initiates random access in the second uplink BWP, and the The configuration information of the first uplink BWP or the configuration information of the second uplink BWP includes the configuration information of the RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , the configuration information of the third uplink BWP includes the configuration information of the RO set.
The communication device according to claim 39 or 40, wherein the RO set includes a first RO set and a second RO set, and the first RO set has no intersection with the second RO set, or the The configuration information of the first RO set is different from the configuration information of the second RO set;

The processor is also used to:

Determine the type of random access initiated by the terminal according to the RO where the pilot is located; wherein, if the RO where the pilot is located belongs to the first RO set, then the random access initiated by the terminal is 4 1-step random access, if the RO where the pilot is located belongs to the second RO set, then the random access initiated by the terminal is 2-step random access.
The communication device according to claim 41, wherein the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot A subset and a fourth pilot subset, the first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, the second pilot subset and the fourth pilot subset Corresponding to non-coverage enhanced terminals;

The processor is also used to:

If the RO where the pilot sent by the terminal belongs to the first RO set, determine the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs, wherein, if If the pilot belongs to the first pilot subset, the terminal is a terminal of the first type and is a terminal with enhanced coverage; if the pilot belongs to the second subset of pilots, the terminal is a terminal of the first type And it is a non-coverage enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second type terminal and is a coverage enhanced terminal; if the pilot belongs to the fourth pilot subset, Then the terminal is a second type terminal and is a non-coverage enhanced terminal.
The communication device according to claim 42, wherein the processor is further configured to:

If the RO where the pilot sent by the terminal belongs to the second RO set, determine the type of the terminal and whether it is a coverage-enhanced terminal according to the pilot subset to which the pilot belongs, wherein, if If the pilot belongs to the first pilot subset, the terminal is a terminal of the first type and is a terminal with enhanced coverage; if the pilot belongs to the second subset of pilots, the terminal is a terminal of the first type And it is a non-coverage enhanced terminal; if the pilot belongs to the third pilot subset, the terminal is a second type terminal and is a coverage enhanced terminal; if the pilot belongs to the fourth pilot subset, Then the terminal is a second type terminal and is a non-coverage enhanced terminal.
The communication device according to claim 39 or 40, wherein the first RO set includes a first RO subset and a second RO subset, and the first RO subset corresponds to a terminal with enhanced coverage, so The second RO subset corresponds to a non-coverage enhanced terminal; the processor is further configured to:

If the RO where the pilot sent by the terminal belongs to the first RO subset, it is determined that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if the terminal sends If the RO where the pilot is located belongs to the second RO subset, it is determined that the terminal is a non-coverage enhanced terminal and the initiated random access is a 2-step random access;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and The third RO subset corresponds to coverage-enhanced terminals, and the second RO subset and the fourth RO subset correspond to non-coverage-enhanced terminals; the processor is further configured to:

If the RO where the pilot sent by the terminal belongs to the first RO subset, it is determined that the terminal is a terminal with enhanced coverage and the random access initiated is a 4-step random access; if the terminal sends If the RO where the pilot is located belongs to the second RO subset, it is determined that the terminal is a non-coverage enhanced terminal and the random access initiated is a 4-step random access; if the pilot sent by the terminal If the RO where the frequency belongs belongs to the third RO subset, then it is determined that the terminal is a terminal with enhanced coverage and the random access initiated is a 2-step random access; if the RO where the pilot sent by the terminal belongs to In the fourth RO subset, it is determined that the terminal is a non-coverage enhanced terminal and the initiated random access is a 2-step random access.
The communication device according to claim 39 or 40, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum bandwidth of the first type terminal Number of receiving antennas The minimum number of receiving antennas of the second type of terminal is different.
A communication device, characterized in that it is applied to a terminal, including: a processor and a memory;

the memory stores computer instructions;

The processor is configured to read the computer instructions and perform the following operations:

Sending a pilot corresponding to the type of the terminal to the network device, where the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

Wherein, if the terminal is the first type terminal, the pilot belongs to a first pilot set, and if the terminal is the second type terminal, the pilot belongs to a second pilot set, The first set of pilots has no intersection with the second set of pilots.
The communication device according to claim 46, wherein the terminal of the first type initiates random access in the first uplink bandwidth part BWP, the terminal of the second type initiates random access in the second uplink BWP, and the The configuration information of the first uplink BWP or the configuration information of the second uplink BWP includes the configuration information of the RO set;

Alternatively, the first type terminal and the second type terminal initiate random access in a third uplink BWP, where the third uplink BWP is an uplink BWP shared by the first type terminal and the second type terminal , the configuration information of the third uplink BWP includes the configuration information of the RO set.
The communication device according to claim 46 or 47, wherein the RO set includes a first RO set and a second RO set, and the first RO set has no intersection with the second RO set, or the The configuration information of the first RO set is different from the configuration information of the second RO set;

Before the processor sends the pilot corresponding to the type of the terminal to the network device, the processor is further configured to:

According to the type of random access to be initiated by the terminal, select an RO from the first RO set or the second RO set; wherein, if the random access to be initiated is a 4-step random access, then Select an RO from the first RO set; if the random access to be initiated is a 2-step random access, select an RO from the second RO set.
The communication device according to claim 48, wherein the first pilot set includes a first pilot subset and a second pilot subset, and the second pilot set includes a third pilot A subset and a fourth pilot subset, the first pilot subset and the third pilot subset correspond to coverage-enhanced terminals, the second pilot subset and the fourth pilot subset Corresponding to non-coverage enhanced terminals;

Before the processor sends the pilot corresponding to the type of the terminal to the network device, the processor is further configured to:

If the random access initiated by the terminal is a 4-step random access and the terminal is a first-type terminal and the terminal is a coverage-enhanced terminal, select a pilot from the first pilot subset; if the The random access initiated by the terminal is a 4-step random access and the terminal is a first type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the The random access initiated by the terminal is a 4-step random access and the terminal is a second-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the third pilot subset; if the terminal initiates If the random access is 4-step random access and the terminal is a second type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the fourth pilot subset.
The communication device according to claim 49, wherein the processor is further configured to:

If the random access initiated by the terminal is a 2-step random access and the terminal is a first-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the first pilot subset; if the The random access initiated by the terminal is a 2-step random access and the terminal is a first type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the second pilot subset; if the The random access initiated by the terminal is a 2-step random access and the terminal is a second-type terminal and the terminal is a coverage-enhanced terminal, then select a pilot from the third pilot subset; if the terminal initiates If the random access is 2-step random access and the terminal is a second type terminal and the terminal is a non-coverage enhanced terminal, then select a pilot from the fourth pilot subset.
The communication device according to claim 46 or 47, wherein the first RO set includes a first RO subset and a second RO subset, and the first RO subset corresponds to a terminal with enhanced coverage, so The second RO subset corresponds to a non-coverage enhanced terminal; the processor is specifically used for:

If the random access to be initiated by the terminal is 4-step random access and the terminal is a coverage-enhanced terminal, select an RO from the first RO subset; if the random access to be initiated by the terminal is 4 random access and the terminal is a non-coverage enhanced terminal, select an RO from the second RO subset;

Alternatively, the first RO set includes a first RO subset and a second RO subset, the second RO set includes a third RO subset and a fourth RO subset, and the first RO subset and all The third RO subset corresponds to a coverage-enhanced terminal, and the second RO subset and the RO subset correspond to a non-coverage-enhanced terminal; the processor is specifically configured to:

If the random access to be initiated by the terminal is 4-step random access and the terminal is a coverage-enhanced terminal, select an RO from the first RO subset; if the random access to be initiated by the terminal is 4 1-step random access and the terminal is a non-coverage-enhanced terminal, select an RO from the second RO subset; if the random access to be initiated by the terminal is 2-step random access and the terminal is coverage-enhanced , select an RO from the third RO subset; if the random access to be initiated by the terminal is a 2-step random access and the terminal is a non-coverage enhanced terminal, select an RO from the fourth RO subset Select RO centrally.
The communication device according to claim 46 or 47, wherein the maximum bandwidth supported by the first type terminal is different from the maximum bandwidth supported by the second type terminal, and/or the minimum bandwidth of the first type terminal Number of receiving antennas The minimum number of receiving antennas of the second type of terminal is different.
A network device, characterized by comprising: a receiving module and a processing module;

The receiving module is configured to receive the pilot frequency sent by the terminal;

The processing module is configured to determine the type of the terminal according to the random access channel opportunity RO where the pilot is located; wherein, if the RO belongs to the first RO set, the terminal is a first type terminal, If the RO belongs to the second RO set, the terminal is a second type of terminal, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set and the first RO set The configuration information of the two RO sets is different.
A terminal, characterized by comprising: a sending module and a processing module;

The sending module is configured to send a pilot to a network device in a random access channel opportunity RO corresponding to the type of the terminal;

The processing module is configured to send the pilot in ROs in the first RO set if the terminal is a first type terminal, and send the pilot in a second RO set if the terminal is a second type terminal The pilot is sent in the RO, the first RO set has no intersection with the second RO set, or the configuration information of the first RO set is different from the configuration information of the second RO set.
A network device, characterized by comprising: a receiving module and a processing module;

The receiving module is configured to receive the pilot sent by the terminal, and the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The processing module is configured to determine the type of the terminal according to the pilot set to which the pilot belongs; wherein, if the pilot belongs to the first pilot set, the terminal is the first type terminal , if the pilot belongs to the second pilot set, the terminal is the second type of terminal, and the first pilot set and the second pilot set have no intersection.
A terminal, characterized by comprising: a sending module and a processing module;

The sending module is configured to send a pilot corresponding to the type of the terminal to the network device, where the random access channel opportunity RO where the pilot is located belongs to the RO set shared by the first type terminal and the second type terminal;

The processing module is configured to: if the terminal is the first type terminal, the pilot belongs to the first pilot set; if the terminal is the second type terminal, the pilot belongs to the first set Two sets of pilots, the first set of pilots does not overlap with the second set of pilots.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer perform the method according to any one of claims 1-26 .
A computer program product, characterized in that, when the computer program product is invoked by a computer, it causes the computer to execute the method according to any one of claims 1-26.