WO2021228226A1

WO2021228226A1 - Random access processing method and terminal

Info

Publication number: WO2021228226A1
Application number: PCT/CN2021/093827
Authority: WO
Inventors: 莫毅韬; 吴昱民
Original assignee: 维沃移动通信有限公司
Priority date: 2020-05-15
Filing date: 2021-05-14
Publication date: 2021-11-18
Also published as: CN113677038B; CN116634597A; CN113677038A

Abstract

The present application provides a random access processing method and a terminal. The method comprises: sending a random access preamble; and in the case that the random access preamble is not mapped to a valid physical uplink shared channel (PUSCH) resource, generating first uplink data according to a first PUSCH resource set associated with the random access preamble, or generating first uplink data according to a fallback random access response, wherein the first PUSCH resource set is used for carrying the first uplink data.

Description

Random access processing method and terminal

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 202010415407.6 filed in China on May 15, 2020, the entire content of which is incorporated herein by reference.

Technical field

This application relates to the field of communication technology, and in particular to a random access processing method and terminal.

Background technique

As we all know, in the current 2-step random access (Random Access, RA) process, the terminal sends a message A (MsgA) to the network device, and the network device sends a message B (MsgB) to the terminal after receiving the MsgA. If the terminal receives a fallback random access response (Fallback Random Access Response, FallbackRAR) that matches the index value of the random access preamble of the sent MsgB in MsgB, the UE will retrieve MsgA from the MsgA buffer. The payload is stored in the Msg3 buffer. Subsequently, the UE sends Msg3 to the network side, and then performs contention resolution. For the 2-step RA process, the MsgA preamble may not be mapped to a valid Physical Uplink Shared Channel resource. At this time, when the UE selects this MsgA preamble, since it cannot obtain the uplink grant (UL grant) carrying the MsgA payload transmission, it cannot generate a MsgA payload, and the subsequent fallback process cannot be guaranteed. , Resulting in lower reliability of the random access process.

Summary of the invention

The embodiments of the present application provide a random access processing method and terminal to solve the problem of low reliability of the random access process.

In the first aspect, an embodiment of the present application provides a random access processing method, including:

Send the random access preamble;

In the case that the random access preamble is not mapped to a valid Physical Uplink Shared Channel (PUSCH) resource, first uplink data is generated according to the first PUSCH resource set associated with the random access preamble , Or generate the first uplink data according to the fallback random access response;

Wherein, the first PUSCH resource set is used to carry the first uplink data.

In the second aspect, an embodiment of the present application provides a terminal, including:

The sending module is used to send the random access preamble;

A data generation module, configured to generate first uplink data according to the first PUSCH resource set associated with the random access preamble when the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource, Or generate the first uplink data according to the fallback random access response;

Wherein, the first PUSCH resource set is used to carry the first uplink data.

In a third aspect, an embodiment of the present application provides a terminal, including: a memory, a processor, and a program or instruction stored on the memory and capable of running on the processor, and the program or instruction is executed by the processor. The steps in the random access processing method described above are implemented during execution.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium with a program or instruction stored on the computer-readable storage medium, and when the program or instruction is executed by a processor, the steps of the random access processing method described above are implemented .

In the embodiment of this application, a random access preamble is sent; in the case that the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource, according to the first PUSCH resource set associated with the random access preamble Generate first uplink data, or generate first uplink data according to a fallback random access response; wherein, the first PUSCH resource set is used to carry the first uplink data. In this way, the terminal can still generate the first uplink data and store the data in the MsgA buffer when the random access preamble is not mapped to the effective physical uplink shared channel PUSCH resource, thereby ensuring the subsequent fallback process The progress went smoothly. Therefore, the embodiments of the present application improve the reliability of the random access process.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present application;

Fig. 2 is a flowchart of a random access processing method provided by an embodiment of the present application;

FIG. 3 is a structural diagram of a terminal provided by an embodiment of the present application;

Fig. 4 is a structural diagram of another terminal provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The term "including" in the specification and claims of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to clear Instead, those steps or units listed below may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment. In addition, the use of "and/or" in the specification and claims means at least one of the connected objects, such as A and/or B, which means that A and B alone are included, and there are three cases for both A and B.

In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

The embodiments of the present application are described below in conjunction with the drawings. The random access processing method and terminal provided by the embodiments of the present application can be applied to a wireless communication system. The wireless communication system may be a 5G system, or an evolved Long Term Evolution (eLTE) system, or a subsequent evolved communication system.

Please refer to FIG. 1. FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present application. As shown in FIG. 1, it includes a terminal 11 and a network device 12. The terminal 11 may be a user terminal or other terminal-side device , Such as: mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, PDA for short), mobile Internet device (Mobile Internet Device, MID) or wearable device ( Wearable Device) and other terminal-side devices. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The above-mentioned network device 12 may be a 5G base station, or a later version base station, or a base station in other communication systems, or it is called Node B, Evolved Node B, or Transmission Reception Point (TRP), or access point (Access Point, AP), or other vocabulary in the field, as long as the same technical effect is achieved, the network device is not limited to a specific technical vocabulary. In addition, the aforementioned network device 12 may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that, in the embodiments of the present application, only a 5G base station is taken as an example, but the specific type of network equipment is not limited.

In order to facilitate understanding, some contents involved in the embodiments of the present application are described below:

Uplink shared channel (UL-SCH) data transmission.

In order to transmit UL-SCH data, the terminal must have the corresponding UL grant and the corresponding Hybrid Automatic Repeat reQuest (HARQ) information. The HARQ information includes the HARQ process identification number (HARQ process id). ), Redundancy Version (RV), New Data Indicator (NDI), Transport Block Size (TBS), etc. For example, in order to transmit MsgA payload, the network equipment needs to use Radio Resource Control (Radio Resource Control, RRC) signaling to indicate the configuration related to the PUSCH resource carrying the MsgA payload transmission, such as: UL grant (MsgA UL grant) for MsgA payload transmission , The MsgA UL grant may include time-frequency code spatial resource allocation.

When the terminal receives a MsgA UL grant, the Medium Access Control (MAC) entity will instruct the MAC layer multiplexing and assembly entity to generate a MAC protocol data unit (Protocol Data Unit) according to the HARQ information corresponding to the MsgA UL grant. Data Unit, PDU), namely MsgA payload, and store it in the MsgA buffer.

In the next step, the MAC entity will give the MsgA UL grant and the corresponding HARQ information to the HARQ entity. Then, the HARQ entity obtains the MsgA payload to be sent from the MsgA buffer. Subsequently, the HARQ entity will instruct the corresponding HARQ process to trigger the transmission of a newly transmitted data, for example, instruct the HARQ process id 0 to trigger the transmission of a newly transmitted data. Specifically, the HARQ process stores the MsgA payload in the HARQ buffer corresponding to HARQ process id 0, and finally triggers the physical layer to send new data.

Please refer to FIG. 2. FIG. 2 is a flowchart of a random access processing method provided by an embodiment of the present application. The method is applied to a terminal. As shown in FIG. 2, it includes the following steps:

Step 201: Send a random access preamble;

In the embodiments of the present application, the aforementioned random access preamble may be called a preamble, and further may be a contention-based random access preamble or a non-competitive preamble (contention-free random access preamble). When the terminal is performing the random access process, it can select effective physical random access channel (Physical Random Access Channel, PRACH) resources for sending the random access preamble. In this embodiment, the random access process can be understood as a 2-step RA process, the competing preamble can be understood as a 2-step RA competitive preamble, and the non-competitive preamble can be understood as a 2-step RA non-competitive preamble. In the above 2-step RA process, the terminal will first send MsgA, which carries a random access preamble.

Step 202: In the case that the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource, generate first uplink data according to the first PUSCH resource set associated with the random access preamble, or according to the response The de-random access response generates first uplink data; wherein, the first PUSCH resource set is used to carry the first uplink data.

Generally, if the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource, the terminal can send MsgA on a selected valid PRACH transmission opportunity (occasion). Further, the above random access preamble is not mapped to the effective physical uplink shared channel PUSCH resource, which can be understood as the preamble that competes with the 2-step RA within an association pattern period (Association Pattern Period) is not mapped to the effective physical uplink shared channel PUSCH. Resource mapping. For example, in an association pattern period, the PUSCH resource selected by the terminal in the first PUSCH resource set associated with the random access preamble is an invalid PUSCH resource. Specifically, part or all of the PUSCH resources in the first PUSCH resource set associated with the random access preamble may be invalid PUSCH resources. Wherein, the first PUSCH resource set may include one PUSCH resource, or may include or multiple time division multiplexing (Time Division Multiplexing) or frequency division multiplexing (Frequency Division Multiplexing) PUSCH resources, and the one PUSCH resource may also be Periodic. Each PUSCH resource includes at least one PUSCH transmission opportunity and demodulation reference signal (Demodulation Reference Signal, DMRS) resource.

The above-mentioned first uplink data can be understood as the uplink data for subsequent uplink transmission, and can also be referred to as MsgA payload. After the foregoing first uplink data is generated, the first uplink data can be stored in the MsgA buffer.

It should be understood that different types of the foregoing random access preambles have different definitions of the corresponding first PUSCH resource set. For example, in an embodiment, the foregoing first PUSCH resource set includes any one of the following:

In the case that the random access preamble is a competing random access preamble, the PUSCH resource set associated with the random access preamble group to which the random access preamble belongs;

In the case that the random access preamble is a non-contention random access preamble, the PUSCH resource set associated with the random access preamble.

Further, the above-mentioned first PUSCH resource set may be configured by the network device through RRC signaling, for example, may be configured through a broadcast system message, for example, may also be configured through RRC dedicated signaling. In other words, in this embodiment, before the sending the random access preamble, the method further includes:

Receive PUSCH configuration information sent by a network device, where the PUSCH configuration information is used to configure a PUSCH resource set, and the PUSCH resource set includes the first PUSCH resource set.

Furthermore, it should be understood that the association relationship between the aforementioned random access preamble and the first PUSCH resource set can be known through the resource configuration indicated in the aforementioned RRC signaling. For example, in a case where the network device configures the random access preamble as a competing random access preamble, the network device may configure a random access preamble group A, where the random access preamble group A includes at least one Competing random access preamble, and the network equipment configures a corresponding PUSCH resource set A for the random access preamble group A. At the same time, the network equipment can configure the random access preamble group B, and the network equipment is the random access preamble Another different PUSCH resource set B corresponding to the code group B configuration. At this time, there is a one-to-one association relationship between the random access preamble group and the PUSCH resource set. Specifically, if the aforementioned competing random access preamble selected by the terminal belongs to the random access preamble group A, the associated first PUSCH resource set is the PUSCH resource set A. If the aforementioned competing random access preamble selected by the terminal belongs to random access preamble group B, the associated first PUSCH resource set is PUSCH resource set B. For another example, in a case where the network device configures the random access preamble as a non-competitive random access preamble, the network device may configure one or more non-competitive random access preambles, and the network device can configure one or more non-competitive random access preambles. One PUSCH resource set corresponding to one or more non-competitive random access preamble configurations. At this time, the non-competitive random access preamble and the PUSCH resource set have a one-to-one or many-to-one association relationship. Specifically, if the terminal selects the aforementioned non-contention random access preamble, the associated first PUSCH resource set is the only PUSCH resource set configured in the RRC dedicated signaling.

In an embodiment, the foregoing generating of the first uplink data according to the first PUSCH resource set associated with the random access preamble includes:

Determining hybrid automatic repeat request HARQ information according to the first PUSCH resource set associated with the random access preamble, where the HARQ information includes transport block size TBS information;

Generating the first uplink data according to the TBS information.

Further, generating the first uplink data according to the TBS information mentioned above means that the multiplexing and assembling entity of the MAC layer can, when the random access preamble is not mapped with the effective physical uplink shared channel PUSCH resource, The above-mentioned first uplink data is generated according to the TBS information.

It should be understood that in this embodiment, when the aforementioned random access preamble is a competing random access preamble, the first PUSCH resource set associated with the random access preamble group to which the random access preamble belongs Determine the hybrid automatic repeat request HARQ information; when the random access preamble is a non-competitive random access preamble, determine the hybrid automatic repeat request according to the first PUSCH resource set associated with the random access preamble HARQ information. The foregoing HARQ information may also include information such as HARQ process id, RV, and NDI.

In another embodiment, the generating first uplink data according to the first PUSCH resource set associated with the random access preamble includes:

Determine a first PUSCH resource from the first PUSCH resource set stored in the MAC layer and associated with the random access preamble;

Determining HARQ information corresponding to the first PUSCH resource;

Submit the first PUSCH resource and the HARQ information to the HARQ entity;

Generating the first uplink data according to the first PUSCH resource and the HARQ information.

Optionally, before the sending the random access preamble, the method further includes:

After the random access process is triggered, an allocation parameter is configured, and the allocation parameter is used to determine the PUSCH resource carrying the first uplink data in the first PUSCH resource set. For example, after the random access procedure is triggered, the RRC layer configures the allocation parameters of resources related to carrying the first uplink data in the PUSCH resource set.

After the random access process is triggered, the PUSCH resource set is stored in the media access control MAC layer.

It should be understood that the resource allocation parameters related to carrying the first uplink data in the above PUSCH resource set include at least one of the following:

Time domain resource allocation parameters of PUSCH resources;

The offset value of the PUSCH resource in the time domain;

The reuse factor of the PUSCH resource in the frequency domain;

PRACH resource configuration period;

The configuration period of PUSCH resources.

Further, it should be understood that the PUSCH resources in the first PUSCH resource set are PUSCH resources that have been granted uplink. Determine a first PUSCH resource from the first PUSCH resource set stored in the MAC layer and associated with the random access preamble, which can also be understood as the first PUSCH stored in the MAC layer and associated with the random access preamble The resources are concentrated, and a UL grant is determined. The corresponding HARQ information can be obtained based on the first PUSCH resource. At this time, the first PUSCH resource and HARQ information can be handed over to the HARQ entity, so that the above-mentioned first uplink data can be generated according to the first PUSCH resource and HARQ information.

In this embodiment, the manner of determining the first PUSCH resource may be set according to actual needs. For example, in an embodiment, it may be determined by random selection with equal probability, or may be determined according to instructions from a network device.

Optionally, after the sending the random access preamble, the method further includes:

In the case that the random access process is completed or the random access type is changed from the 2-step type to the 4-step type, the PUSCH resource set stored in the MAC layer is cleared.

In this embodiment, the foregoing PUSCH resource set can be understood as a transmission PUSCH resource set that carries the MsgA payload in the 2-step RA process. Since the above-mentioned PUSCH resource set does not need to be used after the 2-step RA type is changed to the 4-step RA type, after the PUSCH resource set is cleared, the occupation of the MAC layer cache can be effectively reduced and the system performance can be improved.

Optionally, in this embodiment, the HARQ entity does not submit the first PUSCH resource and the HARQ information to a target HARQ process, and the target HARQ process is agreed upon by a protocol or indicated by HARQ information. For example, the agreement stipulates that the identification number of the HARQ process is 0.

Further, the generating the first uplink data according to the information carried in the fallback random access response includes:

In a case where a fallback random access response is received and there is no uplink data in the MsgA buffer, the multiplexing and assembling entity is instructed to generate the first uplink data according to the fallback random access response.

In this embodiment, the fallback random access response carries related information used to generate the first uplink data, for example, uplink authorization information and corresponding HARQ information. After receiving the fallback random access response, if the MsgA buffer is found to be empty, the multiplexing and assembling entity can be instructed to generate the first uplink data and store the first uplink data in the MsgA buffer. Specifically, the multiplexing and assembling entity may generate the first uplink data based on related information carried in the fallback random access response.

Optionally, the method further includes:

In the case that the logical channel carrying the first uplink data is not a Common Control Channel (CCCH), the first uplink data includes a Cell Radio Network Temporary Identifier (C-RNTI) Medium Access Control Control Element (MAC CE).

In this embodiment, when the logical channel carrying the first uplink data is not a CCCH, it can be understood that this MsgA transmission or the current random access process is not for the CCCH logical channel. In the case that the logical channel carrying the first uplink data is the common control channel CCCH, the first uplink data does not include C-RNTI MAC CE.

Optionally, after generating the first uplink data according to the fallback random access response, the method further includes:

When the first uplink data exists in the MsgA buffer, and the TBS corresponding to the second PUSCH resource in the second PUSCH resource set does not match the size of the first uplink data, the multiplexing and assembling entity is instructed to pair MsgA Reconstructing or reorganizing the first uplink data existing in the buffer to obtain second uplink data;

The second uplink data is stored in the MsgA buffer.

In this embodiment, the multiplexing and assembling entity will reconstruct or rebuild the first uplink data existing in the MsgA buffer according to the TBS corresponding to the second PUSCH resource to obtain the second uplink data. Therefore, the second uplink data can be obtained from the multiplexing and assembling entity and stored in the MsgA buffer. The foregoing second PUSCH resource set and the first PUSCH resource set may be the same or different, and no further limitation is made here. The mismatch between the size of the TBS corresponding to the second PUSCH resource and the first uplink data can be understood as a different size of the TBS corresponding to the second PUSCH resource and the first uplink data.

In the case that the random access type is changed from the 2-step type to the 4-step type, if the first uplink data exists in the MsgA buffer and there is no uplink data in the Msg3 buffer, all the data in the MsgA buffer is changed. The first uplink data is stored in the Msg3 buffer.

In this embodiment, the first uplink data in the MsgA buffer may be obtained first, and then the obtained first uplink data is stored in the Msg3 buffer. In this way, when sending Msg3, the first uplink data can be carried.

Further, after the sending the random access preamble, the method further includes:

In the case where the random access preamble is mapped to a valid PUSCH resource, and the random access preamble is a non-competitive random access preamble, the third PUSCH resource associated with the random access preamble is Set to generate the third upstream data.

It should be noted that the foregoing third uplink data can be understood as uplink data for subsequent uplink transmission, which can also be referred to as MsgA payload. After the foregoing third uplink data is generated, the third uplink data can be stored in the MsgA buffer.

Because in this embodiment, it is defined that when the random access preamble is mapped to an effective PUSCH resource, and the random access preamble is a non-contention random access preamble, the third uplink data is generated The way. This can further ensure the smooth progress of the subsequent fallback process. Therefore, the reliability of the random access process can be further improved.

The foregoing third PUSCH resource set is used to carry the third uplink data. Specifically, the third PUSCH resource set and the first PUSCH resource set may be the same or different; at the same time, the third PUSCH resource set and the second PUSCH resource set may be the same or different; no further details are here. The limit.

Optionally, the generating third uplink data according to the third PUSCH resource set associated with the random access preamble includes:

Determine a third PUSCH resource in the third PUSCH resource set associated with the random access preamble;

Determining HARQ information corresponding to the third PUSCH resource;

Submit the third PUSCH resource and the HARQ information to the HARQ entity;

Generating the third uplink data according to the third PUSCH resource and the HARQ information.

The foregoing third PUSCH resource set may include one PUSCH resource, or may include or multiple time division multiplexing (Time Division Multiplexing) or frequency division multiplexing (Frequency Division Multiplexing) PUSCH resources, and the one PUSCH resource may also be periodic Sexual. Each PUSCH resource includes at least one PUSCH transmission opportunity and DMRS resource.

It should be understood that the PUSCH resources in the third PUSCH resource set are PUSCH resources that have been granted uplink. In the third PUSCH resource set associated with the random access preamble, determining a third PUSCH resource can also be understood as determining a UL grant in the third PUSCH resource set associated with the random access preamble. The corresponding HARQ information can be obtained based on the third PUSCH resource. At this time, the third PUSCH resource and HARQ information can be handed over to the HARQ entity, so that the third uplink data can be generated according to the third PUSCH resource and HARQ information.

In this embodiment, the manner of determining the third PUSCH resource may be set according to actual needs. For example, in an embodiment, it may be determined by random selection with equal probability, or may be determined according to an instruction of a network device.

Further, the foregoing third PUSCH resource set may be configured by a network device through RRC signaling. For example, in this embodiment, before the sending the random access preamble, the method further includes:

Receive PUSCH configuration information sent by a network device through RRC dedicated signaling, where the PUSCH configuration information is used to configure a PUSCH resource set, and the PUSCH resource set includes the third PUSCH resource set.

Furthermore, it should be understood that the association relationship between the aforementioned random access preamble and the third PUSCH resource set can be known through the resource configuration indicated in the aforementioned RRC dedicated signaling. For example, when the network device configures the random access preamble as a non-competitive random access preamble, the network device may configure one or more non-competitive random access preambles, and the network device is the one Or a PUSCH resource set corresponding to multiple non-competitive random access preamble configurations. At this time, the non-competitive random access preamble and the PUSCH resource set have a one-to-one or many-to-one association relationship. Specifically, if the terminal selects the aforementioned non-contention random access preamble, the associated first PUSCH resource set is the only PUSCH resource set configured in the RRC dedicated signaling.

In order to better understand this application, the specific implementation process of this application will be described in detail below for different application scenarios.

Example one

1. The network equipment configures the 2-step RA-related resource configuration for the UE through RRC signaling. The 2-step random access may include 2-step contention-based random access (CBRA) and 2-step non-competition random access (Contention-Free Random Access, CFRA).

2. The terminal triggers the 2-step RA process.

3. In this 2-step RA attempt, if the 2-step RA preamble selected by the MAC entity is a 2-step RA non-competitive preamble, and if the 2-step RA preamble or its corresponding PRACH occasion is the same For effective PUSCH (MsgA PSUCH) resource mapping for carrying MsgA payload transmission, the terminal performs the following steps:

Obtain UL grant and corresponding HARQ information according to the MsgA PUSCH resource configuration associated with the selected 2-step RA non-competitive preamble. The MsgA PUSCH resource configuration is configured through a random access channel dedicated configuration (RACH-Config-Dedicated);

The above UL grant and HARQ information are handed over to the HARQ entity.

4. If the 2-step RA preamble selected by the MAC entity is a 2-step RA competition preamble, and the 2-step RA preamble or its corresponding PRACH occasion is not mapped with a valid MsgA PUSCH resource, the terminal performs the following steps :

Obtain HARQ information (such as TBS) according to the MsgA PUSCH resource configuration associated with the random access preamble group to which the selected 2-step RA competition preamble belongs, and then instruct the multiplexing and assembling entity to generate the MsgA payload according to the TBS information, and transfer it Stored in MsgA buffer. The MsgA PUSCH resource configuration is configured through the SIB1 message.

5. If the 2-step RA preamble selected by the MAC entity is a 2-step RA non-competitive preamble, and the 2-step RA preamble or its corresponding PRACH occasion is not mapped with a valid MsgA PUSCH resource, the terminal performs the following step:

Obtain HARQ information (such as TBS) according to the MsgA PUSCH resource configuration associated with the selected 2-step RA non-competitive preamble, and then instruct the multiplexing and assembly entity to generate the MsgA payload according to the TBS information, and store it in the MsgA buffer. The MsgA PUSCH resource configuration is configured through RACH-Config-Dedicated.

Example two

1. The network equipment configures the 2-step RA-related resource configuration for the UE through RRC signaling. The 2-step RA may include 2-step CBRA and 2-step CFRA.

2. The terminal triggers the 2-step RA process. The RRC layer of the UE first configures MsgA and PUSCH related resource allocation parameters, such as msgA-PUSCH-TimeDomainAllocation and startSymbolAndLengthMsgA-PO. When the 2-step RA process is triggered for initialization, the UE saves the MsgA PUSCH resource (for example, UL grant) configured in the RRC in the MAC entity. The UL grant is a non-dynamic UL grant, and the UE can use it Send MsgA payload.

Obtain UL grant and corresponding HARQ information according to the MsgA PUSCH resource configuration associated with the selected 2-step RA non-competitive preamble. The MsgA PUSCH resource configuration is configured through RACH-Config-Dedicated.

The above UL grant and HARQ information are handed over to the HARQ entity.

Randomly select a UL grant and corresponding HARQ information from the MsgA PUSCH resource configuration associated with the random access preamble group to which the selected 2-step RA competition preamble belongs;

Deliver the above UL grant and HARQ information to the HARQ entity;

Instruct the multiplexing and assembling entity to generate the MsgA payload according to the above UL grant and HARQ information, and store it in the MsgA buffer.

Randomly select a UL grant and corresponding HARQ information from the MsgA PUSCH resource configuration associated with the selected 2-step RA non-competitive preamble;

The above UL grant and HARQ information are handed over to the HARQ entity.

6. If the 2-step RA process is completed or the UE changes the random access type from 2-step RA to 4-step RA, the UE will clear all the MsgA PUSCH resources stored in the MAC layer for MsgA payload transmission.

Example three

2. The terminal triggers the 2-step RA process.

Obtain UL grant and corresponding HARQ information according to the MsgA PUSCH resource configuration associated with the selected 2-step RA non-competitive preamble. The MsgA PUSCH resource configuration is configured through RACH-Config-Dedicated;

The above UL grant and HARQ information are handed over to the HARQ entity.

4. If the UE receives a FallbackRAR, and if the MsgA buffer is empty at this time, the terminal has the following behaviors:

If this transmission is not for the data in the CCCH logical channel, then

Instruct the multiplexing and assembling entity to include a C-RNTI MAC CE in the subsequent uplink transmission;

5. The multiplexing and assembling entity generates the MsgA buffer based on the relevant information carried by FallbackRAR, and obtains the MsgA payload from the multiplexing and assembling entity, and stores it in the MsgA buffer.

6. In the next 2-step RA attempt (for example, the UE is preparing to send the next MsgA), if the data has been buffered in the MsgA buffer, and the UL grant received at this time is a MsgA UL grant for MsgA payload transmission And at this time, the TBS corresponding to the MsgA UL grant is different from the MAC PDU buffered in the MsgA buffer, and the terminal has the following behaviors:

Instruct the multiplexing and assembling entity to rebuild or reorganize the MAC PDU in the MsgA buffer;

Obtain the MsgA payload from the multiplexing and assembly entity, and store it in the MsgA buffer.

6. If the UE changes the random access type from 2-step RA to 4-step RA, and if the MsgA buffer is not empty, and if the Msg3 buffer is not empty, the terminal has the following behaviors:

Obtain the MsgA payload from the MsgA buffer and store it in the Msg3 buffer.

Please refer to FIG. 3, which is a structural diagram of a terminal provided by an embodiment of the present application. As shown in FIG. 3, the terminal 300 includes:

The sending module 301 is used to send a random access preamble;

The data generation module 302 is configured to generate first uplink data according to the first PUSCH resource set associated with the random access preamble when the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource , Or generate the first uplink data according to the fallback random access response;

Wherein, the first PUSCH resource set is used to carry the first uplink data.

Optionally, the first PUSCH resource set includes any one of the following:

Optionally, the terminal further includes:

The receiving module is configured to receive PUSCH configuration information sent by a network device, where the PUSCH configuration information is used to configure a PUSCH resource set, and the PUSCH resource set includes the first PUSCH resource set.

Optionally, the data generating module 302 is specifically configured to perform the following operations:

Generating the first uplink data according to the TBS information.

Determining HARQ information corresponding to the first PUSCH resource;

Submit the first PUSCH resource and the HARQ information to the HARQ entity;

The terminal also includes:

The configuration module is configured to configure allocation parameters after the random access process is triggered, and the allocation parameters are used to determine the PUSCH resource carrying the first uplink data in the first PUSCH resource set.

Optionally, the terminal further includes:

The storage module is configured to store the PUSCH resource set in the media access control MAC layer after the random access process is triggered.

Optionally, the terminal 300 further includes:

The clearing module is used to clear the PUSCH resource set stored in the MAC layer when the random access process is completed or the random access type is changed from the 2-step type to the 4-step type.

Optionally, the HARQ entity does not submit the first PUSCH resource and the HARQ information to a target HARQ process, and the target HARQ process is agreed upon by a protocol or indicated by HARQ information.

Optionally, the data generation module 302 is specifically configured to instruct the multiplexing and assembling entity to perform random access according to the fallback random access response and there is no uplink data in the MsgA buffer. The first uplink data is generated in response.

Optionally, in the case that the logical channel carrying the first uplink data is not the common control channel CCCH, the first uplink data includes the cell radio network temporary identification medium access control control unit C-RNTI MAC CE.

Optionally, the terminal further includes: a storage module, wherein:

The data generation module is further configured to indicate when the first uplink data exists in the MsgA buffer and the TBS corresponding to the second PUSCH resource in the second PUSCH resource set does not match the size of the first uplink data The multiplexing and assembling entity reconstructs or reorganizes the first uplink data existing in the MsgA buffer to obtain the second uplink data;

The storage module is configured to store the second uplink data in the MsgA cache.

Optionally, the terminal further includes:

The storage module is used for changing the random access type from the 2-step type to the 4-step type if the first uplink data exists in the MsgA buffer and there is no uplink data in the Msg3 buffer. The first uplink data in the MsgA buffer is stored in the Msg3 buffer.

Optionally, the data generation module 302 is further configured to: when the random access preamble is mapped to a valid PUSCH resource, and the random access preamble is a non-contention random access preamble, The third uplink data is generated according to the third PUSCH resource set associated with the random access preamble.

Determining HARQ information corresponding to the third PUSCH resource;

Submit the first PUSCH resource and the HARQ information to the HARQ entity;

Optionally, the terminal further includes:

The receiving module is configured to receive PUSCH configuration information sent by a network device through RRC dedicated signaling, where the PUSCH configuration information is used to configure a PUSCH resource set, and the PUSCH resource set includes the third PUSCH resource set.

The terminal provided by the embodiment of the present application can implement the various processes implemented by the terminal in the method embodiment of FIG. 2. To avoid repetition, details are not described herein again.

FIG. 4 is a schematic diagram of the hardware structure of a terminal that implements each embodiment of the present application.

The terminal 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, a processor 410, and a power supply 411 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or less components than those shown in the figure, or combine certain components, or arrange different components. In the embodiments of the present application, terminals include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.

The radio frequency unit 401 is used to send a random access preamble;

The processor 410 is configured to generate first uplink data according to the first PUSCH resource set associated with the random access preamble when the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource, Or generate the first uplink data according to the fallback random access response;

Wherein, the first PUSCH resource set is used to carry the first uplink data.

It should be understood that, in this embodiment, the above-mentioned processor 410 and radio frequency unit 401 can implement each process implemented by the terminal in the method embodiment of FIG.

It should be understood that, in the embodiment of the present application, the radio frequency unit 401 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 410; in addition, Uplink data is sent to the base station. Generally, the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.

The terminal provides users with wireless broadband Internet access through the network module 402, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 403 may convert the audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into an audio signal and output it as sound. Moreover, the audio output unit 403 may also provide audio output related to a specific function performed by the terminal 400 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.

The input unit 404 is used to receive audio or video signals. The input unit 404 may include a graphics processing unit (GPU) 4041 and a microphone 4042. The graphics processor 4041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed. The processed image frame can be displayed on the display unit 406. The image frame processed by the graphics processor 4041 may be stored in the memory 409 (or other storage medium) or sent via the radio frequency unit 401 or the network module 402. The microphone 4042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 in the case of a telephone call mode for output.

The terminal 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 4061 according to the brightness of the ambient light. The proximity sensor can close the display panel 4061 and/or when the terminal 400 is moved to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal gestures (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.

The display unit 406 is used to display information input by the user or information provided to the user. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

The user input unit 407 can be used to receive inputted number or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 407 includes a touch panel 4071 and other input devices 4072. The touch panel 4071, also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 4071 or near the touch panel 4071. operate). The touch panel 4071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 410, the command sent by the processor 410 is received and executed. In addition, the touch panel 4071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 4071, the user input unit 407 may also include other input devices 4072. Specifically, other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

Further, the touch panel 4071 can cover the display panel 4061. When the touch panel 4071 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of the touch event, and then the processor 410 determines the type of the touch event according to the touch. The type of event provides corresponding visual output on the display panel 4061. Although in FIG. 4, the touch panel 4071 and the display panel 4061 are used as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 4071 and the display panel 4061 can be integrated. Realize the input and output functions of the terminal, the specifics are not limited here.

The interface unit 408 is an interface for connecting an external device with the terminal 400. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 408 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 400 or may be used to communicate between the terminal 400 and the external device. Transfer data between.

The memory 409 can be used to store software programs and various data. The memory 409 may mainly include a storage program area and a storage data area. The storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc. In addition, the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 410 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. Various functions of the terminal and processing data, so as to monitor the terminal as a whole. The processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc., the modem The processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.

The terminal 400 may also include a power source 411 (such as a battery) for supplying power to various components. Preferably, the power source 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.

In addition, the terminal 400 includes some functional modules not shown, which will not be repeated here.

Preferably, the embodiment of the present application further provides a terminal, including a processor 410, a memory 409, a program or instruction stored on the memory 409 and running on the processor 410, and the program or instruction is executed by the processor 410 Each process of the foregoing random access processing method embodiment is realized at a time, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.

The embodiment of the present application also provides a computer-readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, the random access processing method on the terminal side provided by the embodiment of the present application is implemented Each process of the embodiment can achieve the same technical effect, and in order to avoid repetition, it will not be repeated here. Wherein, the computer-readable storage medium, such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk, or optical disk, etc.

It can be understood that the embodiments described in this application can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment method can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.) to execute the method described in each embodiment of the present application.

The embodiments of the application are described above with reference to the accompanying drawings, but the application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of this application, many forms can be made without departing from the purpose of this application and the scope of protection of the claims, all of which fall within the protection of this application.

Claims

A random access processing method, including:

Send the random access preamble;

In the case that the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource, the first uplink data is generated according to the first PUSCH resource set associated with the random access preamble, or the random access according to the fallback Incoming response generates first uplink data;

Wherein, the first PUSCH resource set is used to carry the first uplink data.
The method according to claim 1, wherein the first PUSCH resource set includes any one of the following:

In the case that the random access preamble is a competing random access preamble, the PUSCH resource set associated with the random access preamble group to which the random access preamble belongs;

In the case that the random access preamble is a non-contention random access preamble, the PUSCH resource set associated with the random access preamble.
The method according to claim 1 or 2, wherein, before the sending a random access preamble, the method further comprises:

Receive PUSCH configuration information sent by a network device, where the PUSCH configuration information is used to configure a PUSCH resource set, and the PUSCH resource set includes the first PUSCH resource set.
The method according to claim 3, wherein the generating the first uplink data according to the first PUSCH resource set associated with the random access preamble comprises:

Determining hybrid automatic repeat request HARQ information according to the first PUSCH resource set associated with the random access preamble, where the HARQ information includes transport block size TBS information;

Generating the first uplink data according to the TBS information.
The method according to claim 3, wherein the generating the first uplink data according to the first PUSCH resource set associated with the random access preamble comprises:

Determine a first PUSCH resource from the first PUSCH resource set stored in the media access control MAC layer and associated with the random access preamble;

Determining HARQ information corresponding to the first PUSCH resource;

Submit the first PUSCH resource and the HARQ information to the HARQ entity;

Generating the first uplink data according to the first PUSCH resource and the HARQ information.
The method according to claim 5, wherein, before the sending the random access preamble, the method further comprises:

After the random access process is triggered, an allocation parameter is configured, and the allocation parameter is used to determine the PUSCH resource carrying the first uplink data in the first PUSCH resource set.
The method according to claim 5, wherein, before the sending the random access preamble, the method further comprises:

After the random access procedure is triggered, the PUSCH resource set is stored in the MAC layer.
The method according to claim 7, wherein, after the sending the random access preamble, the method further comprises:

When the random access process is completed or the random access type is changed from the 2-step type to the 4-step type, the PUSCH resource set stored in the MAC layer is cleared.
The method according to claim 5, wherein the HARQ entity does not submit the first PUSCH resource and the HARQ information to a target HARQ process, and the target HARQ process is agreed by a protocol or indicated by HARQ information.
The method according to claim 1, wherein said generating the first uplink data according to the back-off random access response comprises:

In a case where a fallback random access response is received and there is no uplink data in the MsgA buffer, the multiplexing and assembling entity is instructed to generate the first uplink data according to the fallback random access response.
The method according to claim 10, wherein, in the case that the logical channel carrying the first uplink data is not a common control channel (CCCH), the first uplink data includes a cell radio network temporary identification medium access control control unit C-RNTI MAC CE.
The method according to claim 10, wherein, after generating the first uplink data according to the fallback random access response, the method further comprises:

In the case that the first uplink data exists in the MsgA cache, and the TBS corresponding to the second PUSCH resource in the second PUSCH resource set does not match the size of the first uplink data, instruct the multiplexing and assembling entity to pair the MsgA cache Reconstructing or reorganizing the existing first uplink data to obtain second uplink data;

The second uplink data is stored in the MsgA buffer.
The method according to claim 10, wherein, after generating the first uplink data according to the fallback random access response, the method further comprises:

In the case that the random access type is changed from the 2-step type to the 4-step type, if the first uplink data exists in the MsgA buffer and there is no uplink data in the Msg3 buffer, all the data in the MsgA buffer is changed. The first uplink data is stored in the Msg3 buffer.
The method according to claim 1, wherein, after the sending the random access preamble, the method further comprises:

In the case where the random access preamble is mapped to a valid PUSCH resource, and the random access preamble is a non-competitive random access preamble, the third PUSCH resource associated with the random access preamble is Set to generate the third upstream data.
The method according to claim 14, wherein the generating third uplink data according to the third PUSCH resource set associated with the random access preamble comprises:

Determine a third PUSCH resource in the third PUSCH resource set associated with the random access preamble;

Determining HARQ information corresponding to the third PUSCH resource;

Submit the third PUSCH resource and the HARQ information to the HARQ entity;

Generating the third uplink data according to the third PUSCH resource and the HARQ information.
The method according to claim 14 or 15, wherein, before the sending a random access preamble, the method further comprises:

Receive PUSCH configuration information sent by a network device through RRC dedicated signaling, where the PUSCH configuration information is used to configure a PUSCH resource set, and the PUSCH resource set includes the third PUSCH resource set.
A terminal including:

The sending module is used to send the random access preamble;

A data generation module, configured to generate first uplink data according to the first PUSCH resource set associated with the random access preamble when the random access preamble is not mapped to a valid physical uplink shared channel PUSCH resource, Or generate the first uplink data according to the fallback random access response;

Wherein, the first PUSCH resource set is used to carry the first uplink data.
The terminal according to claim 17, wherein the first PUSCH resource set includes any one of the following:

In the case that the random access preamble is a competing random access preamble, the PUSCH resource set associated with the random access preamble group to which the random access preamble belongs;

In the case that the random access preamble is a non-contention random access preamble, the PUSCH resource set associated with the random access preamble.
The terminal according to claim 17 or 18, wherein the terminal further comprises:

The receiving module is configured to receive PUSCH configuration information sent by a network device, where the PUSCH configuration information is used to configure a PUSCH resource set, and the PUSCH resource set includes the first PUSCH resource set.
The terminal according to claim 19, wherein the data generating module is specifically configured to perform the following operations:

Determining hybrid automatic repeat request HARQ information according to the first PUSCH resource set associated with the random access preamble, where the HARQ information includes transport block size TBS information;

Generating the first uplink data according to the TBS information.
The terminal according to claim 19, wherein the data generating module is specifically configured to perform the following operations:

Determine a first PUSCH resource from the first PUSCH resource set stored in the media access control MAC layer and associated with the random access preamble;

Determining HARQ information corresponding to the first PUSCH resource;

Submit the first PUSCH resource and the HARQ information to the HARQ entity;

Generating the first uplink data according to the first PUSCH resource and the HARQ information.
The terminal according to claim 21, wherein the terminal further comprises:

The configuration module is configured to configure allocation parameters after the random access process is triggered, and the allocation parameters are used to determine the PUSCH resource carrying the first uplink data in the first PUSCH resource set.
The terminal according to claim 21, wherein the terminal further comprises:

The storage module is configured to store the PUSCH resource set in the MAC layer after the random access process is triggered.
The terminal according to claim 23, wherein the terminal further comprises:

The clearing module is used to clear the PUSCH resource set stored in the MAC layer when the random access process is completed or the random access type is changed from the 2-step type to the 4-step type.
The terminal according to claim 21, wherein the HARQ entity does not submit the first PUSCH resource and the HARQ information to a target HARQ process, and the target HARQ process is agreed upon by a protocol or indicated by HARQ information.
The terminal according to claim 17, wherein the data generation module is specifically configured to: in the case that the backoff random access response is received and there is no uplink data in the MsgA buffer, instruct the multiplexing and assembling entity according to The fallback random access response generates the first uplink data.
The terminal according to claim 26, wherein, in the case that the logical channel carrying the first uplink data is not a common control channel (CCCH), the first uplink data includes a cell radio network temporary identification medium access control control unit C-RNTI MAC CE.
The terminal according to claim 26, wherein the terminal further comprises a storage module, wherein,

The data generation module is further configured to indicate when the first uplink data exists in the MsgA buffer and the TBS corresponding to the second PUSCH resource in the second PUSCH resource set does not match the size of the first uplink data The multiplexing and assembling entity reconstructs or reorganizes the first uplink data existing in the MsgA buffer to obtain the second uplink data;

The storage module is configured to store the second uplink data in the MsgA cache.
The terminal according to claim 26, wherein the terminal further comprises:

The storage module is used for changing the random access type from the 2-step type to the 4-step type if the first uplink data exists in the MsgA buffer and there is no uplink data in the Msg3 buffer. The first uplink data in the MsgA buffer is stored in the Msg3 buffer.
A terminal, comprising: a memory, a processor, and a program or instruction stored on the memory and capable of running on the processor, and the program or instruction is executed by the processor as claimed in claims 1 to 16 Steps in any one of the random access processing methods.
A computer-readable storage medium having a program or instruction stored on the computer-readable storage medium, and when the program or instruction is executed by a processor, the random access processing according to any one of claims 1 to 16 is realized Method steps.
A terminal configured to execute the steps in the random access processing method according to any one of claims 1 to 16.
A computer program product, which is executed by at least one processor to implement the resource selection method according to any one of claims 1 to 16.