CN115486197A

CN115486197A - Random access method/device/equipment and storage medium

Info

Publication number: CN115486197A
Application number: CN202280002574.5A
Authority: CN
Inventors: 张娟; 李明菊; 吴昱民
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-16
Also published as: WO2024016360A1

Abstract

The present disclosure proposes a random access method, apparatus, device, and storage medium, where the method includes: triggering a Random Access (RA) process in response to a terminal device supporting beam reciprocity, determining a transmission and/or reception beam of the terminal device based on the beam reciprocity; and transmitting information and/or data in the current triggered RA process based on the transmitting and/or receiving beam of the terminal equipment. The method can reduce overhead (overhead) of beam management, and the terminal equipment side does not need to carry out beam scanning, thereby shortening the transmission flow of the terminal equipment side and improving the transmission efficiency on the basis of ensuring successful transmission of information and/or data.

Description

Random access method/device/equipment and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a random access method, apparatus, and device, and a storage medium.

Background

In a communication system, if a non-connected terminal device needs to perform a communication service with a network device, it generally needs to initiate a Random Access (RA) procedure to Access the network device and then perform a communication service with the network device.

In the related art, in the RA process, the terminal device and the network device perform signaling interaction, for example, in the 2-step random access process, the terminal device sends msgA to the network device and receives msgB sent by the network device; in the 4-step random access process, the terminal device sends msg1 and msg3 to the network device and receives msg2 and msg4 sent by the network device.

Among them, how to select a transmission beam and/or a reception beam for receiving and transmitting signaling by a terminal device in an RA procedure is a technical problem that needs to be solved urgently.

Disclosure of Invention

The present disclosure provides a random access method, apparatus, device, and storage medium for determining a transmission beam and/or a reception beam to be used in a random access procedure.

In a first aspect, an embodiment of the present disclosure provides a random access method, where the method is performed by a network device, and includes:

in response to a terminal device supporting beam reciprocity triggering a random access, RA, procedure, determining a transmit and/or receive beam for the terminal device based on beam reciprocity;

and transmitting information and/or data in the current triggered RA process based on the transmitting and/or receiving beam of the terminal equipment.

Therefore, in the present disclosure, for a terminal device supporting beam reciprocity, information and/or data is transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management can be reduced, and a terminal device side does not need to perform beam scanning, thereby shortening a transmission flow of the terminal device side and improving transmission efficiency on the basis of ensuring successful transmission of information and/or data.

In a second aspect, an embodiment of the present disclosure provides a random access method, where the method is performed by a terminal device, and includes:

responding to a terminal device triggering RA process, and determining whether the RA process triggered by the terminal device is an RA process for realizing transmission based on beam reciprocity;

in response to determining that the RA procedure triggered by the terminal device is an RA procedure that implements transmissions based on beam reciprocity, determining whether the network device is to implement transmissions in a currently triggered RA procedure based on beam reciprocity of the terminal device;

in response to determining that the network device is to implement transmission in a currently triggered RA procedure based on beam reciprocity of a terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on the beam reciprocity of the terminal device;

and in response to determining that the network device does not implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device, implementing transmission of information and/or data in the currently triggered RA procedure based on beam scanning.

In a third aspect, an embodiment of the present disclosure provides a communication apparatus, where the apparatus is configured to, by a network device, include:

a processing module, configured to trigger an RA procedure in response to a terminal device supporting beam reciprocity, determine a transmit and/or receive beam of the terminal device based on the beam reciprocity;

and the receiving and sending module is used for transmitting the information and/or the data in the current triggered RA process based on the sending and/or receiving beam of the terminal equipment.

In a fourth aspect, an embodiment of the present disclosure provides a communication apparatus, where the apparatus is configured in a terminal device, and the apparatus includes:

the processing module is used for responding to the RA triggering process of the terminal equipment and determining whether the terminal equipment realizes the transmission in the current triggered RA process based on the beam reciprocity;

the processing module is further configured to determine, in response to determining that the terminal device implements transmission in a currently triggered RA procedure based on beam reciprocity, whether the network device is to implement transmission in a currently triggered RA procedure based on beam reciprocity of the terminal device;

a receiving and sending module, configured to respond to a determination that the network device is to implement transmission in a currently triggered RA process based on beam reciprocity of a terminal device, and implement transmission of information and/or data in the currently triggered RA process based on the beam reciprocity of the terminal device;

the transceiver module is further configured to, in response to determining that the network device does not implement transmission in the currently triggered RA procedure based on beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on beam scanning.

In a fifth aspect, the disclosed embodiments provide a communication device comprising a processor, which, when calling a computer program in a memory, executes the method of the first aspect.

In a sixth aspect, the disclosed embodiments provide a communication device comprising a processor that, when calling a computer program in a memory, performs the method of the second aspect described above.

In a seventh aspect, an embodiment of the present disclosure provides a communication apparatus, including a processor and a memory, where the memory stores a computer program; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect.

In an eighth aspect, an embodiment of the present disclosure provides a communication apparatus, including a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect.

In a ninth aspect, the disclosed embodiments provide a communication apparatus, the apparatus comprising a processor and an interface circuit, the interface circuit being configured to receive code instructions and transmit the code instructions to the processor, and the processor being configured to execute the code instructions to cause the apparatus to perform the method of the first aspect.

In a tenth aspect, an embodiment of the present disclosure provides a communication apparatus, which includes a processor and an interface circuit, where the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to execute the code instructions to cause the apparatus to perform the method according to the second aspect.

In an eleventh aspect, the disclosed embodiments provide a communication system, which includes the communication apparatus of the third aspect to the communication apparatus of the fourth aspect, or the system includes the communication apparatus of the fifth aspect to the communication apparatus of the sixth aspect, or the system includes the communication apparatus of the seventh aspect to the communication apparatus of the eighth aspect, or the system includes the communication apparatus of the tenth aspect to the communication apparatus of the eleventh aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions for the network device, where the instructions, when executed, cause the terminal device to perform the method described in any one of the first aspect to the second aspect.

In a thirteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of any of the first to second aspects described above.

In a fourteenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, and is configured to support a network device to implement a function involved in the method according to any one of the first aspect to the second aspect, for example, to determine or process at least one of data and information involved in the above method. In one possible design, the system-on-chip further includes a memory for storing computer programs and data necessary for the source secondary node. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a fifteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects described above.

Drawings

The above and/or additional aspects and advantages of the present disclosure will become apparent from and readily appreciated by reference to the following description of the embodiments taken in conjunction with the accompanying drawings,

wherein:

fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present disclosure;

fig. 2 is a flowchart illustrating a random access method according to another embodiment of the disclosure;

fig. 3 is a flowchart illustrating a random access method according to still another embodiment of the disclosure;

fig. 4 is a flowchart illustrating a random access method according to another embodiment of the disclosure;

fig. 5 is a flowchart illustrating a random access method according to another embodiment of the disclosure;

fig. 6 is a flowchart illustrating a random access method according to still another embodiment of the disclosure;

fig. 7 is a flowchart illustrating a random access method according to another embodiment of the disclosure;

fig. 8 is a flowchart illustrating a random access method according to an embodiment of the present disclosure;

fig. 9 is a flowchart illustrating a random access method according to another embodiment of the disclosure;

fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a communication device according to another embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosed embodiments, as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The words "if" and "if," as used herein, may be interpreted as "at" \8230; \8230when "or" when 8230; \823030, when "or" in response to a determination, "depending on the context.

Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present disclosure, and should not be construed as limiting the present disclosure.

For ease of understanding, terms referred to in the present application will be first introduced.

1. Beam reciprocity (beam reciprocity)

The terminal device may determine its uplink transmission beam according to the downlink reception beam or determine its downlink reception beam according to the uplink transmission beam.

2. Small Data Transmission (SDT, small Data Transmission)

In a scenario of small data transmission SDT, according to resources configured at a network device side, a terminal device can directly send small data to the network device side when the terminal device is in a Radio Resource Control (RRC) IDLE/INACTIVE state.

For example, the terminal device in the idle state or the inactive state may directly transmit data to the network device in the following process:

a random access process of initial access, namely sending small data through an Msg3 or MsgA;

the 4-step random access procedure for initial access (otherwise known as 4-step RACH SDT), i.e. sending small data over Msg 3.

The 2-step random access procedure for initial access (otherwise known as 2-step RACH SDT), i.e. sending small data over MsgA.

A CG (configuration Grant) SDT service process, that is, sending small data through a dedicated Physical Uplink Shared Channel (PUSCH) Resource (e.g., a Configuration Grant (CG) Resource or a pre-Configured Uplink Resource (PUR)) Configured by a network device.

3. Random access channel opportunity (RO)

A time-frequency domain resource occupied by a Random Access Channel (RACH) format.

In order to better understand a random access method disclosed in the embodiments of the present disclosure, a communication system to which the embodiments of the present disclosure are applicable is first described below.

Referring to fig. 1, fig. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure. The communication system may include, but is not limited to, one network device and one terminal device, the number and form of the devices shown in fig. 1 are only for example and do not constitute a limitation to the embodiments of the present disclosure, and two or more network devices and two or more terminal devices may be included in practical applications. The communication system shown in fig. 1 includes a network device 11 and a terminal device 12 as an example.

It should be noted that the technical solutions of the embodiments of the present disclosure may be applied to various communication systems. For example: a Long Term Evolution (LTE) system, a fifth generation (5 th generation, 5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems.

The network device 11 in the embodiment of the present disclosure is an entity for transmitting or receiving signals on the network side. For example, the network device 11 may be an evolved NodeB (eNB), a Transmission Reception Point (TRP), a next generation base station (gNB) in an NR system, a base station in another future mobile communication system, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present disclosure do not limit the specific technologies and the specific device forms adopted by the network devices. The network device provided by the embodiment of the present disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and a protocol layer of a network device, such as a base station, may be split by using a structure of CU-DU, functions of a part of the protocol layer are centrally controlled by the CU, and functions of the remaining part or all of the protocol layer are distributed in the DU, and the DU is centrally controlled by the CU.

The terminal device 12 in the embodiment of the present disclosure is an entity, such as a mobile phone, on the user side for receiving or transmitting signals. A terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), or the like. The terminal device may be a vehicle having a communication function, a smart vehicle, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving (self-driving), a wireless terminal device in remote surgery (remote medical supply), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), and the like. The embodiments of the present disclosure do not limit the specific technology and the specific device form adopted by the terminal device.

It is to be understood that the communication system described in the embodiment of the present disclosure is for more clearly illustrating the technical solutions of the embodiment of the present disclosure, and does not constitute a limitation to the technical solutions provided in the embodiment of the present disclosure, and as a person having ordinary skill in the art knows, with the evolution of the system architecture and the appearance of a new service scenario, the technical solutions provided in the embodiment of the present disclosure are also applicable to similar technical problems.

A random access method/apparatus/device and a storage medium provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

Fig. 2 is a schematic flowchart of a random access method provided in an embodiment of the present disclosure, where the method is executed by a terminal device, and as shown in fig. 2, the random access method may include the following steps:

step 201, triggering an RA procedure in response to a terminal device supporting beam reciprocity, and determining a transmission and/or reception beam of the terminal device based on the beam reciprocity.

In one embodiment of the present disclosure, the RA procedure may include any one of:

RA procedure related to SDT (hereinafter abbreviated RA-SDT procedure);

non-SDT related RA procedures (subsequently abbreviated as RA-non-SDT procedures).

And, in one embodiment of the present disclosure, the beam reciprocity mentioned above is a beam reciprocity that does not require beam scanning, i.e., a beam reciprocity that does not require downlink beam scanning and/or uplink beam scanning.

In addition, in one embodiment of the present disclosure, it may be predetermined based on a protocol convention that, for a terminal device supporting beam reciprocity, it must implement transmission in the RA procedure based on beam reciprocity.

Further, in an embodiment of the present disclosure, after the terminal supporting beam reciprocity triggers the RA procedure, the terminal device generally needs to indicate to the network device whether the RA procedure triggered by the terminal device is an RA procedure for implementing transmission based on beam reciprocity, so that when the RA procedure is an RA procedure for implementing transmission based on beam reciprocity, the network device may subsequently further determine whether the network device is to implement transmission in the currently triggered RA procedure based on beam reciprocity of the terminal device.

In an embodiment of the present disclosure, a method for indicating, by a terminal device, to a network device, whether an RA procedure is an RA procedure for implementing transmission based on beam reciprocity may be any of the following:

the first method comprises the following steps: the terminal device implements the transmitted RA procedure by triggering the RA procedure based on some specific RO and/or preamble to implicitly indicate to the network device whether the RA procedure triggered by the terminal device is based on beam reciprocity.

Specifically, in an embodiment of the present disclosure, a terminal device supporting beam reciprocity may determine a first mapping relationship and/or a second mapping relationship first. Wherein, the first mapping relationship may include: a first RO and/or a first preamble corresponding to the RA-SDT procedure, the first RO being configured to: if the RO corresponding to the triggered RA-SDT process is the first RO, indicating the terminal equipment to realize the transmission in the triggered RA-SDT process based on the beam reciprocity; the first preamble is used for: and if the preamble corresponding to the triggered RA-SDT process is the first preamble, indicating that the terminal equipment can realize the transmission in the triggered RA-SDT process based on the beam reciprocity.

The second mapping relationship may include: and a second RO and/or a second preamble corresponding to the RA-non-SDT process, wherein the second RO is used for: if the RO corresponding to the triggered RA-non-SDT process is the second RO, indicating the terminal equipment to realize the transmission in the triggered RA-non-SDT process based on the beam reciprocity; the second preamble is used for: and if the preamble corresponding to the triggered RA-non-SDT process is the second preamble, indicating the terminal equipment to realize the transmission in the triggered RA-non-SDT process based on the beam reciprocity.

And after the terminal device supporting the beam reciprocity determines the first mapping relationship and/or the second mapping relationship, if the terminal device is to trigger the RA-SDT process, determining a first RO and/or a first preamble based on the first mapping relationship, and triggering the RA-SDT process based on the first RO and/or the first preamble; if the RA-non-SDT procedure is to be triggered (or initiated), a second RO and/or a second preamble are determined based on the second mapping relationship, and the RA-non-SDT procedure is triggered based on the second RO and/or the second preamble.

It can be known from the foregoing content that the network device only needs to determine whether the RO corresponding to the RA procedure triggered by the terminal device is the first RO or the second RO, and/or determine whether the preamble corresponding to the RA procedure triggered by the terminal device is the first preamble or the second preamble, so as to determine whether the RA procedure currently triggered by the terminal device is the RA procedure for realizing transmission based on beam reciprocity.

And the second method comprises the following steps: the terminal equipment reports the capability information to the network equipment to indicate whether the RA process triggered by the terminal equipment is the RA process for realizing transmission based on beam reciprocity.

Specifically, in an embodiment of the present disclosure, the terminal device may report capability information to the network device, where the capability information is used to indicate whether the terminal device supports beam reciprocity in the RA procedure. When the capability information reported by the terminal device and received by the network device indicates that the terminal device supports the beam reciprocity in the RA procedure, since the protocol is agreed, the transmission in the RA procedure must be implemented based on the beam reciprocity for the terminal device supporting the beam reciprocity, and therefore, the network device can directly know that the RA procedures triggered by the terminal device should all be the RA procedures implemented based on the beam reciprocity.

It should be noted that, in an embodiment of the present disclosure, when the terminal device reports the capability information to the network device to indicate whether the RA procedure triggered by the terminal device is an RA procedure for implementing transmission based on beam reciprocity, since the network device can directly know, based on the capability information reported by the terminal device, whether the RA procedure triggered by the terminal device is an RA procedure for implementing transmission based on beam reciprocity, the terminal device does not need to trigger the RA procedure based on some specific ROs and/or preambles (such as the above-mentioned first RO, second RO, first preamble, or second preamble) to indicate to the network device whether the RA procedure triggered by the terminal device is an RA procedure for implementing transmission based on beam reciprocity, so that the terminal device can trigger the RA procedure based on any one or both of the ROs and the preambles.

In addition, in an embodiment of the present disclosure, the capability information may be carried in an information field, for example, may be carried in an information field IE, bearer _ synchronization _ ra _ SDT-r18 managed { supported }.

Still further, in an embodiment of the present disclosure, the method for determining a transmission and/or reception beam of the terminal device based on beam reciprocity as described above may include:

determining a receiving beam used when the terminal equipment receives a Synchronization Signal Block (SSB) associated with an RO and/or a preamble corresponding to a currently triggered RA process as the receiving beam of the terminal equipment; and then, determining the transmission beam of the terminal device based on the beam reciprocity and the reception beam of the terminal device, that is, simultaneously determining the reception beam of the terminal device as the transmission beam of the terminal device based on the beam reciprocity, in other words, the terminal device can simultaneously perform uplink transmission on the reception beam thereof.

Step 202, transmitting information and/or data in the currently triggered RA procedure based on the transmission and/or reception beam of the terminal device.

Specifically, in one embodiment of the present disclosure, in response to that the currently triggered RA procedure is an RA-SDT procedure, information and data may be sent to the network device based on the sending beam of the terminal device, and information and data sent by the network device may be received based on the receiving beam of the terminal device;

and in response to the currently triggered RA procedure being an RA-non-SDT procedure, may transmit information to the network device based on the transmit beam of the terminal device and receive information transmitted by the network device based on the receive beam of the terminal device.

For example, the terminal device can use the transmission beam of the terminal device to transmit the small data in the msg1/msg3/msgA/RA-SDT process to the network device, and use the reception beam of the terminal device to receive the small data in the msg2/msg4/msgB/RA-SDT process transmitted by the network device.

In summary, in the random access method provided in the embodiment of the present disclosure, in response to a terminal device supporting beam reciprocity triggering an RA procedure, the terminal device supporting beam reciprocity may determine a transmission beam and/or a reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity may transmit information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiment of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data are transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management can be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow of the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring successful transmission of the information and/or data.

Fig. 3 is a flowchart of a random access method provided in an embodiment of the present disclosure, where the method is executed by a terminal device, and as shown in fig. 3, the random access method may include the following steps:

step 301, in response to the terminal device supporting the beam reciprocity, determining the first mapping relationship and/or the second mapping relationship.

Step 302, in response to that a terminal device supporting beam reciprocity needs to trigger (or initiate) an RA procedure, triggering the RA procedure based on the first mapping relationship and/or the second mapping relationship.

Step 303, determining a transmitting and/or receiving beam of the terminal device based on the beam reciprocity.

Step 304, transmitting information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device.

The detailed description about steps 301 to 304 can be described with reference to the above embodiments.

In summary, in the random access method provided in the embodiment of the present disclosure, in response to a terminal device supporting beam reciprocity triggering an RA procedure, the terminal device supporting beam reciprocity may determine a transmission beam and/or a reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity transmits information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiment of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data are transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management can be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow of the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring successful transmission of the information and/or data.

Fig. 4 is a flowchart illustrating a random access method provided in an embodiment of the present disclosure, where the method is executed by a terminal device, and as shown in fig. 4, the random access method may include the following steps:

step 401, reporting capability information to the network device in response to the terminal device supporting the beam reciprocity, where the capability information indicates that the terminal device supports the beam reciprocity.

Step 402, in response to that a terminal device supporting beam reciprocity needs to trigger (or initiate) an RA procedure, triggering the RA procedure.

In an embodiment of the present disclosure, when a terminal device supporting beam reciprocity reports capability information to a network device, and the capability information indicates that the terminal device supports beam reciprocity, and the terminal device triggers an RA procedure, the RA procedure may not be triggered based on some specific ROs and/or preambles (such as the first RO, the second RO, the first preamble, or the second preamble), but may be triggered based on any RO and/or any preamble.

And step 403, determining a transmitting beam and/or a receiving beam of the terminal equipment based on the beam reciprocity.

Step 404, transmitting information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device.

The detailed description about steps 401-404 can be described with reference to the above embodiments.

Fig. 5 is a flowchart illustrating a random access method provided in an embodiment of the present disclosure, where the method is executed by a network device, and as shown in fig. 5, the random access method may include the following steps:

step 501, responding to the terminal device triggering the RA procedure, and determining whether the RA procedure triggered by the terminal device is an RA procedure for implementing transmission based on beam reciprocity.

In one embodiment of the disclosure, the RA procedure includes any of:

an RA-SDT procedure;

RA-non-SDT procedure.

And, in one embodiment of the present disclosure, the beam reciprocity is a beam reciprocity that does not require beam scanning (e.g., uplink beam scanning and/or downlink beam scanning).

In addition, in an embodiment of the present disclosure, a method for a network device to determine whether an RA procedure triggered by a terminal device is an RA procedure for implementing transmission based on beam reciprocity may include any one of the following:

the method comprises the steps of determining whether an RA process triggered by the terminal equipment is an RA process for realizing transmission based on beam reciprocity or not based on RO and/or preamble corresponding to the RA process triggered by the terminal equipment.

Specifically, the network device may first determine the first mapping relationship and/or the second mapping relationship. Wherein the first mapping relationship comprises: a first RO and/or a first preamble corresponding to the RA-SDT process, wherein the first RO is used for: if the RO corresponding to the triggered RA-SDT process is the first RO, indicating the terminal equipment to realize the transmission in the triggered RA-SDT process based on the beam reciprocity; the first preamble is used for: if the preamble corresponding to the triggered RA-SDT process is the first preamble, indicating that the terminal equipment realizes the transmission in the triggered RA-SDT process based on the beam reciprocity;

the second mapping relationship comprises: a second RO and/or a second preamble corresponding to the RA-non-SDT process, wherein the second RO is used for: if the RO corresponding to the triggered RA-non-SDT process is the second RO, indicating the terminal equipment to realize the transmission in the triggered RA-non-SDT process based on the beam reciprocity; the second preamble is used for: and if the preamble corresponding to the triggered RA-non-SDT process is the second preamble, indicating that the terminal equipment realizes the transmission in the triggered RA-non-SDT process based on the beam reciprocity.

And determining the type of the currently triggered RA process after determining the first mapping relationship and/or the second mapping relationship, wherein in response to the currently triggered RA process being an RA-SDT process, if the RO and/or the preamble corresponding to the currently triggered RA process is the first RO and/or the first preamble, determining that the RA process triggered by the terminal device is an RA process for implementing transmission based on beam reciprocity; and responding to the fact that the current triggered RA process is an RA-non-SDT process, and if the RO and/or the preamble corresponding to the current triggered RA process is the second RO and/or the second preamble, determining that the RA process triggered by the terminal equipment is the RA process for realizing transmission based on beam reciprocity.

And secondly, determining whether the RA process triggered by the terminal equipment is the RA process for realizing transmission based on the beam reciprocity or not based on the capability information reported by the terminal equipment.

Specifically, in an embodiment of the present disclosure, since the protocol has been agreed in advance, for a terminal device supporting beam reciprocity, it must implement transmission in the RA procedure based on beam reciprocity. Therefore, if the capability information reported by the terminal device indicates that the terminal device supports the beam reciprocity in the RA procedure, the network device may directly determine that the RA procedure triggered by the terminal device is an RA procedure for implementing transmission based on the beam reciprocity.

Step 502, in response to determining that the terminal device is to implement transmission in the currently triggered RA procedure based on beam reciprocity, determining whether the network device is to implement transmission in the currently triggered RA procedure based on beam reciprocity of the terminal device.

In an embodiment of the present disclosure, the method for determining whether the network device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device may include:

determining whether the network device supports beam reciprocity; wherein, in response to the network device supporting beam reciprocity, it is determined that the network device is to implement transmission in a currently triggered RA procedure based on the beam reciprocity of a terminal device; and in response to that the network equipment does not support the beam reciprocity, determining that the network equipment does not realize the transmission in the current triggered RA process based on the beam reciprocity of the terminal equipment.

Step 503, in response to determining that the network device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on the beam reciprocity of the terminal device.

In an embodiment of the present disclosure, the method for implementing information and/or data transmission in a currently triggered RA procedure based on beam reciprocity of a terminal device may include the following steps:

determining a sending beam of the SSB associated with the RO and/or preamble corresponding to the currently triggered RA process as a sending beam of the network device; the receiving beam of the network device is determined based on the beam reciprocity of the terminal device and the transmitting beam of the network device, i.e. the transmitting beam of the network device is also determined as the receiving beam of the network device based on the beam reciprocity, in other words, the information and/or data transmitted by the terminal device is also received on the transmitting beam of the network device. Then, receiving information and/or data in a current triggered RA process sent by the terminal device based on a receiving beam of the network device; and sending information and/or data in the current triggered RA process to the terminal equipment based on the sending beam of the network equipment.

In one embodiment of the present disclosure, in response to that the currently triggered RA procedure is an RA-SDT procedure, receiving information and data in the currently triggered RA procedure sent by the terminal device; and receiving the information in the current triggered RA process sent by the terminal equipment in response to the fact that the current triggered RA process is an RA-non-SDT process. And responding to the current triggered RA process as an RA-SDT process, and sending information and data in the current triggered RA process to the terminal equipment; and responding to the fact that the current triggered RA process is an RA-non-SDT process, and sending information in the current triggered RA process to the terminal equipment.

For example, the network device can use the receiving beam of the network device to receive the small data in the msg1/msg3/msgA/RA-SDT process transmitted by the terminal device, and the network device can use the transmitting beam of the network device to transmit the small data in the msg2/msg4/msgB/RA-SDT process to the terminal device.

Therefore, in the embodiment of the present disclosure, when the terminal device transmits information and/or data in the triggered RA process based on the beam reciprocity, the network device may also transmit information and/or data in the triggered RA process based on the beam reciprocity, so that overhead (overhead) of beam management may be further reduced, and the network device side does not need to perform beam scanning, so that on the basis of ensuring that the information and/or data can be successfully transmitted, the transmission flow of the network device side is shortened, and the transmission efficiency is improved.

Step 504, in response to determining that the network device does not implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on beam scanning.

In an embodiment of the present disclosure, the transmitting of information and/or data in the RA procedure currently triggered based on beam scanning may include:

determining a sending beam of the SSB associated with the RO and/or preamble corresponding to the currently triggered RA process as a sending beam of the network device; sending information and/or data in the current triggered RA process to the terminal equipment by utilizing the sending wave beam of the network equipment; and performing uplink beam scanning based on the transmission beam of the network equipment to receive the information and/or data in the current triggered RA process transmitted by the terminal equipment.

In an embodiment of the present disclosure, since the network device has determined that the RA procedure triggered by the terminal device is an RA procedure for implementing transmission based on beam reciprocity, that is, the transmission beam of the terminal device and the reception beam of the terminal device are the same beam, and the transmission beam of the network device is substantially the transmission beam of the SSB associated with the RO and/or preamble corresponding to the currently triggered RA procedure, and there is also beam reciprocity with the transmission beam of the terminal device and the reception beam of the terminal device, when the network device performs the uplink beam scanning, the network device only needs to perform a small-range uplink beam scanning near the transmission beam of the network device based on the transmission beam of the network device to receive information and/or data in the currently triggered RA procedure sent by the terminal device, so that the beam scanning range in the present disclosure is small, the efficiency of beam scanning is improved, and the efficiency of information and/or data transmission is ensured.

In summary, in the random access method provided in the embodiment of the present disclosure, in response to a terminal device supporting beam reciprocity triggering an RA procedure, the terminal device supporting beam reciprocity may determine a transmission and/or reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity transmits information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiment of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data are transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management can be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow of the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring successful transmission of the information and/or data.

Fig. 6 is a flowchart illustrating a random access method provided in an embodiment of the present disclosure, where the method is executed by a network device, and as shown in fig. 6, the random access method may include the following steps:

step 601, responding to the terminal equipment triggering RA process, and determining whether the RA process triggered by the terminal equipment is the RA process for realizing transmission based on beam reciprocity or not based on RO and/or preamble corresponding to the RA process triggered by the terminal equipment.

Step 602, in response to determining that the terminal device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity, determining whether the network device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device.

Step 603, in response to determining that the network device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on the beam reciprocity of the terminal device.

The detailed description of steps 601-603 can be described with reference to the above embodiments.

In summary, in the random access method provided in the embodiment of the present disclosure, in response to a terminal device supporting beam reciprocity triggering an RA procedure, the terminal device supporting beam reciprocity may determine a transmission and/or reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity may transmit information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiments of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data is transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management may be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow at the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring that information and/or data can be successfully transmitted.

Fig. 7 is a flowchart of a random access method provided in an embodiment of the present disclosure, where the method is executed by a network device, and as shown in fig. 7, the random access method may include the following steps:

step 701, responding to the terminal device to trigger the RA process, and determining whether the RA process triggered by the terminal device is the RA process for realizing transmission based on beam reciprocity based on the RO and/or preamble corresponding to the RA process triggered by the terminal device.

Step 702, in response to determining that the terminal device is to implement the transmission in the currently triggered RA procedure based on the beam reciprocity, determining whether the network device is to implement the transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device.

Step 703, in response to determining that the network device does not implement transmission in the currently triggered RA process based on the beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA process based on beam scanning.

The detailed description of steps 701-703 may be described with reference to the above embodiments.

In summary, in the random access method provided in the embodiment of the present disclosure, in response to a terminal device supporting beam reciprocity triggering an RA procedure, the terminal device supporting beam reciprocity may determine a transmission beam and/or a reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity transmits information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiments of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data is transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management may be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow at the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring that information and/or data can be successfully transmitted.

Fig. 8 is a flowchart of a random access method provided in an embodiment of the present disclosure, where the method is executed by a network device, and as shown in fig. 8, the random access method may include the following steps:

step 801, receiving capability information reported by the terminal device, where the capability information is used to indicate whether the terminal device supports beam reciprocity in the RA process.

Step 802, responding to the terminal device triggering the RA procedure, and determining whether the RA procedure triggered by the terminal device is an RA procedure for realizing transmission based on beam reciprocity based on the capability information.

Step 803, in response to determining that the terminal device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity, determining whether the network device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device.

Step 804, in response to determining that the network device is to implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on the beam reciprocity of the terminal device.

The detailed description of steps 801-804 can be described with reference to the above embodiments.

In summary, in the random access method provided in the embodiment of the present disclosure, in response to a terminal device supporting beam reciprocity triggering an RA procedure, the terminal device supporting beam reciprocity may determine a transmission and/or reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity transmits information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiments of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data is transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management may be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow at the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring that information and/or data can be successfully transmitted.

Fig. 9 is a flowchart illustrating a random access method provided in an embodiment of the present disclosure, where the method is executed by a network device, and as shown in fig. 9, the random access method may include the following steps:

step 901, receiving capability information reported by the terminal device, where the capability information is used to indicate whether the terminal device supports beam reciprocity in the RA process.

And 902, responding to the terminal equipment triggering the RA process, and determining whether the RA process triggered by the terminal equipment is an RA process for realizing transmission based on beam reciprocity or not based on the capability information.

Step 903, in response to determining that the terminal device is to implement transmission in the currently triggered RA process based on the beam reciprocity, determining whether the network device is to implement transmission in the currently triggered RA process based on the beam reciprocity of the terminal device.

Step 904, in response to determining that the network device does not implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on beam scanning.

The detailed description of steps 901-904 can be described with reference to the above embodiments.

Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure, and as shown in fig. 10, the device may include:

a processing module, configured to trigger an RA procedure in response to a terminal device supporting beam reciprocity, and determine a transmission and/or reception beam of the terminal device based on beam reciprocity;

In summary, in the communication apparatus provided in the embodiment of the present disclosure, an RA procedure is triggered in response to a terminal device supporting beam reciprocity, where the terminal device supporting beam reciprocity determines a transmission and/or reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity transmits information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiment of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data are transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management can be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow of the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring successful transmission of the information and/or data.

Optionally, in an embodiment of the present disclosure, the RA procedure includes any one of:

a random access, RA, procedure associated with a small data transmission, SDT;

a non-small data transmission related random access procedure.

Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

determining a first mapping relation and/or a second mapping relation;

wherein the first mapping relationship comprises: a first random access channel opportunity (RO) and/or a first preamble corresponding to the RA-SDT procedure, wherein the first RO is configured to: if the RO corresponding to the triggered RA-SDT process is the first RO, indicating the terminal equipment to realize the transmission in the triggered RA-SDT process based on the beam reciprocity; the first preamble is used for: if the preamble corresponding to the triggered RA-SDT process is the first preamble, indicating the terminal equipment to realize the transmission in the triggered RA-SDT process based on the beam reciprocity;

the second mapping relationship comprises: a second RO and/or a second preamble corresponding to the RA-non-SDT process, wherein the second RO is used for: if the RO corresponding to the triggered RA-non-SDT process is the second RO, indicating the terminal equipment to realize the transmission in the triggered RA-non-SDT process based on the beam reciprocity; the second preamble is used for: and if the preamble corresponding to the triggered RA-non-SDT process is the second preamble, indicating the terminal equipment to realize the transmission in the triggered RA-non-SDT process based on the beam reciprocity.

in response to initiating an RA-SDT process, determining a first RO and/or a first preamble based on the first mapping relation, and triggering the RA-SDT process based on the first RO and/or the first preamble;

and responding to the initiation of the RA-non-SDT process, determining a second RO and/or a second preamble based on the second mapping relation, and triggering the RA-non-SDT process based on the second RO and/or the second preamble.

and reporting capability information to the network equipment, wherein the capability information is used for indicating whether the terminal equipment supports beam reciprocity in the RA process.

Optionally, in an embodiment of the present disclosure, the processing module is further configured to:

determining a receiving beam used when the terminal equipment receives a synchronization signal block SSB associated with an RO and/or a preamble corresponding to a currently triggered RA process as the receiving beam of the terminal equipment;

determining a transmit beam for the terminal device based on beam reciprocity and a receive beam for the terminal device.

Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

responding to the fact that the current triggered RA process is an RA-SDT process, sending information and data to the network equipment based on the sending beam of the terminal equipment, and receiving the information and data sent by the network equipment based on the receiving beam of the terminal equipment;

and responding to the fact that the current triggered RA process is an RA-non-SDT process, sending information to the network equipment based on the sending beam of the terminal equipment, and receiving the information sent by the network equipment based on the receiving beam of the terminal equipment.

Optionally, in an embodiment of the present disclosure, the beam reciprocity is a beam reciprocity that does not require beam scanning.

Fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure, and as shown in fig. 11, the device may include:

the processing module is used for responding to the triggering of the RA process of the terminal equipment and determining whether the terminal equipment realizes the transmission in the current triggered RA process based on the beam reciprocity;

the processing module is further configured to determine, in response to determining that the terminal device implements transmission in the currently triggered RA procedure based on beam reciprocity, whether the network device is to implement transmission in the currently triggered RA procedure based on beam reciprocity of the terminal device;

the transceiver module is further configured to, in response to determining that the network device does not implement transmission in the currently triggered RA procedure based on the beam reciprocity of the terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on beam scanning.

In summary, in the communication apparatus provided in the embodiment of the present disclosure, in response to a terminal device supporting beam reciprocity triggering an RA procedure, the terminal device supporting beam reciprocity may determine a transmission and/or reception beam of the terminal device based on the beam reciprocity; then, the terminal device supporting beam reciprocity may transmit information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device. That is, in the embodiment of the present disclosure, for a terminal device supporting beam reciprocity, information and/or data are transmitted based on beam reciprocity in an RA process, so that overhead (overhead) of beam management can be reduced, and a terminal device side does not need to perform beam scanning, so that a transmission flow of the terminal device side is shortened and transmission efficiency is improved on the basis of ensuring successful transmission of the information and/or data.

a random access, RA, procedure associated with a small data transmission, SDT;

a non-small data transmission related random access procedure.

determining a first mapping relation and/or a second mapping relation;

wherein the first mapping relationship comprises: a first RO and/or a first preamble corresponding to the RA-SDT process, wherein the first RO is used for: if the RO corresponding to the triggered RA-SDT process is the first RO, indicating the terminal equipment to realize the transmission in the triggered RA-SDT process based on the beam reciprocity; the first preamble is used for: if the preamble corresponding to the triggered RA-SDT process is the first preamble, indicating that the terminal equipment realizes the transmission in the triggered RA-SDT process based on the beam reciprocity;

responding to the fact that the current triggered RA process is an RA-SDT process, and if the RO and/or the preamble corresponding to the current triggered RA process is the first RO and/or the first preamble, determining that the RA process triggered by the terminal equipment is the RA process for realizing transmission based on beam reciprocity;

and in response to that the currently triggered RA process is an RA-non-SDT process, if the RO and/or preamble corresponding to the currently triggered RA process is a second RO and/or a second preamble, determining that the RA process triggered by the terminal equipment is an RA process for realizing transmission based on beam reciprocity.

and receiving capability information reported by the terminal equipment, wherein the capability information is used for indicating whether the terminal equipment supports beam reciprocity in the RA process.

and responding to the capability information indicating that the terminal equipment supports the beam reciprocity in the RA process, and determining that the RA process triggered by the terminal equipment is the RA process for realizing transmission based on the beam reciprocity.

in response to the network device supporting the beam reciprocity, determining that the network device is to implement transmission in a current triggered RA process based on the beam reciprocity of the terminal device;

and in response to that the network equipment does not support the beam reciprocity, determining that the network equipment does not realize the transmission in the current triggered RA process based on the beam reciprocity of the terminal equipment.

determining a sending beam of the SSB associated with the RO and/or preamble corresponding to the currently triggered RA process as a sending beam of the network device;

determining a receive beam of the network device based on a beam reciprocity of a terminal device and a transmit beam of the network device;

receiving information and/or data in a current triggered RA process sent by the terminal device based on a receiving beam of the network device;

and sending information and/or data in the current triggered RA process to the terminal equipment based on the sending beam of the network equipment.

sending information and/or data in the current triggered RA process to the terminal equipment by utilizing the sending wave beam of the network equipment;

and performing uplink beam scanning based on the transmission beam of the network equipment to receive the information and/or data in the current triggered RA process transmitted by the terminal equipment.

responding to the current triggered RA process as an RA-SDT process, and receiving information and data in the current triggered RA process sent by the terminal equipment;

responding to the current triggered RA process as an RA-non-SDT process, and receiving information in the current triggered RA process sent by the terminal equipment;

the transceiver module is further configured to:

responding to the current triggered RA process as an RA-SDT process, and sending information and data in the current triggered RA process to the terminal equipment;

and responding to the fact that the current triggered RA process is an RA-non-SDT process, and sending information in the current triggered RA process to the terminal equipment.

Referring to fig. 12, fig. 12 is a schematic structural diagram of a communication device 1200 according to an embodiment of the present disclosure. The communication apparatus 1200 may be a network device, a terminal device, a chip system, a processor, or the like supporting the network device to implement the method described above, or a chip, a chip system, a processor, or the like supporting the terminal device to implement the method described above. The apparatus may be configured to implement the method described in the foregoing method embodiment, and specific reference may be made to the description in the foregoing method embodiment.

The communications apparatus 1200 may include one or more processors 1201. The processor 1201 may be a general purpose processor, a special purpose processor, or the like. For example, a baseband processor or a central processor. The baseband processor may be configured to process communication protocols and communication data, and the central processor may be configured to control a communication device (e.g., a base station, a baseband chip, a terminal device chip, a DU or CU, etc.), execute a computer program, and process data of the computer program.

Optionally, the communication apparatus 1200 may further include one or more memories 1202, on which a computer program 1204 may be stored, and the processor 1201 executes the computer program 1204, so as to enable the communication apparatus 1200 to execute the method described in the above method embodiment. Optionally, the memory 1202 may further store data. The communication device 1200 and the memory 1202 may be provided separately or may be integrated together.

Optionally, the communications apparatus 1200 may also include a transceiver 1205, an antenna 1206. The transceiver 1205 may be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc., for implementing transceiving functions. The transceiver 1205 may include a receiver and a transmitter, where the receiver may be referred to as a receiver or a receiving circuit, etc. for performing a receiving function; the transmitter may be referred to as a transmitter or a transmission circuit, etc. for implementing the transmission function.

Optionally, one or more interface circuits 1207 may also be included in the communications device 1200. The interface circuit 1207 is used to receive code instructions and transmit them to the processor 1201. The processor 1201 executes the code instructions to cause the communication apparatus 1200 to perform the methods described in the above-described method embodiments.

In one implementation, a transceiver may be included in the processor 1201 for performing receive and transmit functions. The transceiver may be, for example, a transceiver circuit, or an interface circuit. The transmit and receive circuitry, interfaces or interface circuitry used to implement the receive and transmit functions may be separate or integrated. The transceiver circuit, the interface circuit or the interface circuit may be used for reading and writing code/data, or the transceiver circuit, the interface circuit or the interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 1201 may have a computer program 1203 stored therein, and the computer program 1203 running on the processor 1201 may cause the communication apparatus 1200 to perform the method described in the above method embodiment. The computer program 1203 may be solidified in the processor 1201, in which case the processor 1201 may be implemented by hardware.

In one implementation, the communications apparatus 1200 may include circuitry that may implement the functionality of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described herein may be implemented on Integrated Circuits (ICs), analog ICs, radio Frequency Integrated Circuits (RFICs), mixed signal ICs, application Specific Integrated Circuits (ASICs), printed Circuit Boards (PCBs), electronic devices, and the like. The processor and transceiver may also be fabricated using various IC process technologies, such as Complementary Metal Oxide Semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar Junction Transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), and the like.

The communication apparatus in the above description of the embodiment may be a network device or a terminal device, but the scope of the communication apparatus described in the present application is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 12. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication means may be:

(1) A stand-alone integrated circuit IC, or chip, or system-on-chip or subsystem;

(2) A set of one or more ICs, which optionally may also include storage means for storing data, computer programs;

(3) An ASIC, such as a Modem (Modem);

(4) A module that may be embedded within other devices;

(5) Receivers, terminal devices, smart terminal devices, cellular phones, wireless devices, handsets, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, and the like;

(6) Others, and so forth.

For the case that the communication device may be a chip or a system of chips, see the schematic structural diagram of the chip shown in fig. 13. The chip shown in fig. 13 includes a processor 1301 and an interface 1302. The number of the processors 1301 may be one or more, and the number of the interfaces 1302 may be more.

Optionally, the chip further comprises a memory 1303, the memory 1303 being used to store necessary computer programs and data.

Those skilled in the art will also appreciate that the various illustrative logical blocks and steps (step) set forth in the embodiments of the present application may be implemented in electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

The present application also provides a readable storage medium having stored thereon instructions which, when executed by a computer, implement the functionality of any of the above-described method embodiments.

The present application also provides a computer program product which, when executed by a computer, implements the functionality of any of the method embodiments described above.

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

Those of ordinary skill in the art will understand that: the various numbers of the first, second, etc. mentioned in this application are only used for the convenience of description and are not used to limit the scope of the embodiments of this application, but also to indicate the sequence.

At least one of the present applications may also be described as one or more, and a plurality may be two, three, four or more, and the present application is not limited thereto. In the embodiment of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the like, and the technical features described in "first", "second", "third", "a", "B", "C", and "D" are not in a sequential order or a size order.

The correspondence shown in the tables in the present application may be configured or predefined. The values of the information in each table are only examples, and may be configured to other values, which is not limited in the present application. When the correspondence between the information and each parameter is configured, it is not always necessary to configure all the correspondences indicated in each table. For example, in the table in the present application, the correspondence shown in some rows may not be configured. For another example, appropriate modification adjustments, such as splitting, merging, etc., can be made based on the above tables. The names of the parameters in the tables may be other names understandable by the communication device, and the values or the expression of the parameters may be other values or expressions understandable by the communication device. When the above tables are implemented, other data structures may be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables may be used.

Predefinition in this application may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

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

Claims

1. A random access method, performed by a terminal device, the method comprising:

in response to a terminal device supporting beam reciprocity triggering a random access, RA, procedure, determining a transmit and/or receive beam for the terminal device based on the beam reciprocity;

2. The method of claim 1, wherein the RA procedure comprises any of:

a random access, RA, procedure associated with a small data transmission, SDT;

a non-small data transmission related random access procedure.

3. The method of claim 1 or 2, further comprising:

determining a first mapping relation and/or a second mapping relation;

wherein the first mapping relationship comprises: a first random access channel occasion RO and/or a first preamble corresponding to an SDT related RA procedure, the first RO being configured to: if the triggered RO corresponding to the RA process related to the SDT is the first RO, indicating the terminal equipment to realize the transmission of the triggered RA process related to the SDT based on the beam reciprocity; the first preamble is used for: if the triggered preamble corresponding to the RA process related to the SDT is the first preamble, indicating the terminal device to realize the transmission of the triggered RA process related to the SDT based on the beam reciprocity;

the second mapping relationship comprises: a second RO and/or a second preamble corresponding to a RA procedure related to non-SDT, wherein the second RO is used for: if the RO corresponding to the triggered non-SDT related RA process is the second RO, indicating the terminal equipment to realize the transmission in the triggered non-SDT related RA process based on the beam reciprocity; the second preamble is used for: and if the preamble corresponding to the triggered non-SDT related RA process is the second preamble, indicating that the terminal device can realize the transmission of the triggered non-SDT related RA process based on the beam reciprocity.

4. The method of claim 3, wherein the terminal device supporting beam reciprocity triggers an RA procedure comprising:

in response to initiating an RA procedure related to an SDT, determining a first RO and/or a first preamble based on the first mapping relation, and triggering the RA procedure related to the SDT based on the first RO and/or the first preamble;

and responding to the initiation of the RA process related to the non-SDT, determining a second RO and/or a second preamble based on the second mapping relation, and triggering the RA process related to the non-SDT based on the second RO and/or the second preamble.

5. The method of claim 1, wherein the method further comprises:

6. The method of claim 1, wherein the determining the transmit and/or receive beams for the terminal device based on beam reciprocity comprises:

7. The method of claim 6, wherein the transmitting information and/or data in the currently triggered RA procedure based on the transmit and/or receive beam of the terminal device comprises:

in response to that the currently triggered RA process is an SDT-related RA process, sending information and data to the network device based on a sending beam of the terminal device, and receiving the information and data sent by the network device based on a receiving beam of the terminal device;

and in response to the fact that the currently triggered RA process is a non-SDT related RA process, sending information to the network equipment based on the sending beam of the terminal equipment, and receiving the information sent by the network equipment based on the receiving beam of the terminal equipment.

8. The method of any of claims 1-7, wherein the beam reciprocity is a beam reciprocity that does not require beam scanning.

9. A random access method, performed by a network device, the method comprising:

in response to determining that the network device is to implement transmission in a currently triggered RA procedure based on the beam reciprocity of the terminal device, implementing transmission of information and/or data in the currently triggered RA procedure based on the beam reciprocity of the terminal device;

10. The method of claim 9, wherein the RA procedure comprises any of:

RA procedures related to SDT;

non-SDT related RA procedures.

11. The method of claim 9, wherein the method further comprises:

determining a first mapping relation and/or a second mapping relation;

wherein the first mapping relationship comprises: a first RO and/or a first preamble corresponding to an RA procedure related to SDT, the first RO being configured to: if the triggered RO corresponding to the RA process related to the SDT is the first RO, indicating the terminal equipment to realize the transmission of the triggered RA process related to the SDT based on the beam reciprocity; the first preamble is used for: if the triggered preamble corresponding to the RA process related to the SDT is the first preamble, indicating that the terminal device realizes the transmission of the triggered RA process related to the SDT based on the beam reciprocity;

the second mapping relationship comprises: a second RO and/or a second preamble corresponding to a RA procedure related to non-SDT, wherein the second RO is used for: if the RO corresponding to the triggered non-SDT related RA process is the second RO, indicating that the terminal equipment realizes the transmission in the triggered non-SDT related RA process based on the beam reciprocity; the second preamble is used for: and if the preamble corresponding to the triggered non-SDT related RA process is the second preamble, indicating that the terminal device realizes the transmission in the triggered non-SDT related RA process based on the beam reciprocity.

12. The method of claim 11, wherein the determining whether the terminal device triggered RA procedure is a beam reciprocity based transmission-enabled RA procedure comprises:

responding to that the current triggered RA process is an RA process related to SDT, and if the RO and/or the preamble corresponding to the current triggered RA process is the first RO and/or the first preamble, determining that the RA process triggered by the terminal equipment is the RA process for realizing transmission based on beam reciprocity;

and in response to that the currently triggered RA process is a non-SDT related RA process, if the RO and/or preamble corresponding to the currently triggered RA process is the second RO and/or the second preamble, determining that the RA process triggered by the terminal device is an RA process for realizing transmission based on beam reciprocity.

13. The method of claim 9, wherein the method further comprises:

14. The method of claim 13, wherein the determining whether the terminal device triggered RA procedure is a beam reciprocity based transmission-enabled RA procedure comprises:

and in response to the capability information indicating that the terminal device supports beam reciprocity in the RA process, determining that the RA process triggered by the terminal device is an RA process for implementing transmission based on beam reciprocity.

15. The method of claim 14, wherein the determining whether the network device is to implement transmission in a currently triggered RA procedure based on beam reciprocity of a terminal device comprises:

in response to the fact that the network equipment supports beam reciprocity, determining that the network equipment is to realize transmission in a current triggered RA process based on the beam reciprocity of the terminal equipment;

16. The method of claim 9, wherein the enabling of the transmission of information and/or data in the currently triggered RA procedure based on the beam reciprocity of the terminal device comprises:

17. The method of claim 9, wherein said enabling transmission of information and/or data in a currently triggered RA procedure based on beam scanning comprises:

18. The method according to claim 16 or 17, wherein the receiving information and/or data in the currently triggered RA procedure sent by the terminal device comprises:

responding to the current triggered RA process as an SDT related RA process, and receiving information and data in the current triggered RA process sent by the terminal equipment;

responding to the current triggered RA process as a non-SDT related RA process, and receiving information in the current triggered RA process sent by the terminal equipment;

the sending information and/or data in the currently triggered RA procedure to the terminal device includes:

responding to the current triggered RA process as an RA process related to SDT, and sending information and data in the current triggered RA process to the terminal equipment;

and responding to the fact that the current triggered RA process is a non-SDT related RA process, and sending information in the current triggered RA process to the terminal equipment.

19. The method of any of claims 9-18, wherein the beam reciprocity is a beam reciprocity that does not require beam scanning.

20. A communication apparatus, configured in a network device, comprising:

21. A communications apparatus, configured in a UE, comprising:

a transceiver module, configured to, in response to determining that the network device is to implement transmission in a currently triggered RA procedure based on beam reciprocity of a terminal device, implement transmission of information and/or data in the currently triggered RA procedure based on the beam reciprocity of the terminal device;

22. A communications apparatus, comprising a processor and a memory, wherein the memory has stored therein a computer program, and the processor executes the computer program stored in the memory to cause the apparatus to perform the method of any one of claims 1 to 8, or the processor executes the computer program stored in the memory to cause the apparatus to perform the method of any one of claims 9 to 19.

23. A communications apparatus, comprising: a processor and an interface circuit, wherein

The interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor for executing the code instructions to perform the method of any one of claims 1 to 8 or for executing the code instructions to perform the method of any one of claims 9 to 19.

24. A computer readable storage medium storing instructions that, when executed, cause the method of any one of claims 1 to 8 to be implemented, or that, when executed, cause the method of any one of claims 9 to 19 to be implemented.