CN115150966B - Information processing method, system and terminal - Google Patents

Abstract

The disclosure relates to an information processing method, an information processing system and a terminal, and relates to the technical field of communication. The method of the present disclosure comprises: the terminal selects a physical random access channel PRACH resource for transmitting the preamble; the terminal generates a random access radio network temporary identifier RA-RNTI according to the information of the selected PRACH resource and the information of the slice level to be accessed by the terminal; the terminal scrambles the preamble by utilizing the RA-RNTI and sends the preamble to the base station so that the base station can acquire the slice level to be accessed by the terminal through the RA-RNTI.

Description

Information processing method, system and terminal

Technical Field

The present disclosure relates to the field of communication technology, and in particular to an information processing method, system and terminal.

Background Art

In the 5G era, it is generally believed that its large connection capacity and mobility can help promote the transformation and innovation of industries such as manufacturing, transportation, energy and public services, and healthcare, which makes wireless communications highly anticipated in the vertical industry market. These diverse vertical businesses bring a wide range of performance requirements in terms of throughput, capacity, latency, mobility, reliability, and location accuracy.

3GPP R17 proposed a project on slicing enhancement, among which how to enable users to quickly access cells that support given slices through RACH (Random Access Channel) is an important research direction.

The existing contention-based random access mechanism requires random access to the signaling process of Msg1~4 between the terminal and the base station. After the terminal completes the random access, the network can be informed of the identifier of the requested slice S-NSSAI (Single Network Slice Selection Assistance Information) through RRC (Radio Resource Control) signaling or NAS (Non-Access Stratum) signaling.

Summary of the invention

The inventors found that the grading of slices can provide richer and more flexible services for different users. Users of higher-level slices can get better services, for example, faster access to the slices they want to access. However, the existing random access mechanism cannot achieve slice awareness. All terminals need to wait until the random access is completed before they can inform the network of the slices they requested, and the base station can know the slices that the terminal wants to access. The base station cannot know more quickly which terminals want to access high-level slices and which terminals want to access low-level slices, so as to provide different services to terminals of different levels of slices faster and more efficiently.

A technical problem to be solved by the present disclosure is: how to enable the base station to obtain the slice level that the terminal wants to access more quickly and efficiently.

According to some embodiments of the present disclosure, an information processing method is provided, including: a terminal selects a physical random access channel PRACH resource for sending a preamble code; the terminal generates a random access radio network temporary identifier RA-RNTI according to information of the selected PRACH resource and information of a slice level to be accessed by the terminal; the terminal scrambles the preamble code using the RA-RNTI and sends it to a base station, so that the base station obtains the slice level to be accessed by the terminal through the RA-RNTI.

In some embodiments, the information of the selected PRACH resource includes: the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the PRACH selected in the system frame, the index of the PRACH selected in the frequency domain, and the uplink carrier used for preamble code transmission, and the information of the slice level that the terminal wants to access includes: the representation value of the slice level that the terminal wants to access; the terminal generates an RA-RNTI based on the information of the selected PRACH resource and the information of the slice level that the terminal wants to access, including: the terminal multiplies the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the PRACH selected in the system frame, the index of the PRACH selected in the frequency domain, the uplink carrier used for preamble code transmission, and the representation value of the slice level that the terminal wants to access with the corresponding coefficients and then sums them to generate the RA-RNTI.

In some embodiments, the RA-RNTI is determined using the following formula:

RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×slice_id

Among them, s_i represents the index of the first OFDM symbol of the selected PRACH, t_id represents the index of the first time slot of the PRACH selected in the system frame, f_id represents the index of the PRACH selected in the frequency domain, ul_carrier_id represents the uplink carrier used for preamble code transmission, slice_id represents the representation value of the slice level that the terminal wants to access, and slice_id is an integer.

In some embodiments, information about a slice level to be accessed by a terminal is determined based on a slice type identifier in an identifier of the slice to be accessed, wherein the slice type identifier corresponds to the information about the slice level.

In some embodiments, the terminal scrambling the preamble code by using the RA-RNTI includes: the terminal generating a random access message Msg1, where Msg1 includes the preamble code and the RA-RNTI.

In some embodiments, the method also includes: the terminal receives a random access response RAR sent by the base station; the terminal demodulates the RAR using the RA-RNTI, and if the demodulation is successful, determines that the base station has obtained the slice level that the terminal wants to access.

In some embodiments, the RAR includes a conflict resolution strategy corresponding to the terminal, and the conflict resolution strategy is configured for the terminal by the base station according to the slice level to which the terminal wants to access; the method also includes: when the terminal is demodulated successfully, obtaining the conflict resolution strategy corresponding to the terminal; when a random access conflict occurs between the terminal and other terminals, resulting in access failure, re-initiating random access according to the conflict resolution strategy.

In some embodiments, the base station obtains the slice level that the terminal wants to access through the RA-RNTI, including: the base station calculates the information of the slice level that the terminal wants to access from the RA-RNTI based on the information of the PRACH resources of the received preamble code and the received RA-RNTI.

In some embodiments, the method also includes: the base station configures a corresponding conflict resolution strategy for the terminal according to the slice level that the terminal wants to access.

In some embodiments, the base station configures a corresponding conflict resolution strategy for the terminal according to the slice level that the terminal wants to access, including: the base station configures at least one of the power climbing parameter and the backoff time parameter corresponding to the slice level for the terminal according to the slice level that the terminal wants to access; wherein, the higher the slice level, the larger the power climbing parameter, and the smaller the backoff time parameter.

According to some other embodiments of the present disclosure, a terminal is provided, including: a resource selection module, used to select a physical random access channel PRACH resource for sending a preamble code; an RA-RNTI generation module, used to generate a random access radio network temporary identifier RA-RNTI according to information of the selected PRACH resource and information of a slice level to be accessed by the terminal; and a sending module, used to scramble the preamble code using the RA-RNTI and send it to a base station, so that the base station obtains the slice level to be accessed by the terminal through the RA-RNTI.

According to some further embodiments of the present disclosure, a terminal is provided, comprising: a processor; and a memory coupled to the processor, for storing instructions, wherein when the instructions are executed by the processor, the processor executes the information processing method as described in any of the aforementioned embodiments.

According to some further embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, on which a computer program is stored, wherein the program, when executed by a processor, implements the steps of the information processing method of any of the aforementioned embodiments.

According to some further embodiments of the present disclosure, an information processing system is provided, comprising: a terminal of any of the aforementioned embodiments; and a base station, for receiving a preamble code sent by the terminal that is scrambled using RA-RNTI, and obtaining a slice level that the terminal wants to access through the RA-RNTI.

In some embodiments, the base station is used to calculate information about the slice level that the terminal wants to access from the RA-RNTI based on the information about the PRACH resources of the received preamble code and the received RA-RNTI.

In some embodiments, the base station is also used to configure a corresponding conflict resolution strategy for the terminal according to the slice level that the terminal wants to access.

In some embodiments, the base station is used to configure at least one of the power climbing parameters and backoff time parameters corresponding to the slice level for the terminal according to the slice level that the terminal wants to access; wherein, the higher the slice level, the larger the power climbing parameter and the smaller the backoff time parameter.

In the present disclosure, after the terminal selects the PRACH resource for sending the preamble, it generates RA-RNTI according to the information of the selected PRACH resource and the information of the slice level to be accessed, and then uses RA-RNTI to scramble the preamble and send it to the base station. In this way, the base station can obtain the slice level that the terminal wants to access through RA-RNTI. Since the preamble will be sent in the Msg1 stage, the base station can quickly and efficiently perceive the slice level of the terminal in the first signaling stage of random access, which has a high guiding significance for subsequent scheduling, etc., so that the base station can provide different services for terminals with slices of different levels faster and more efficiently. In addition, the disclosed solution makes little change to the existing random access process and has good backward compatibility.

Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic flow chart showing an information processing method according to some embodiments of the present disclosure.

FIG. 2 is a schematic flow chart showing information processing methods according to other embodiments of the present disclosure.

FIG3 shows a schematic structural diagram of a terminal according to some embodiments of the present disclosure.

FIG. 4 is a schematic diagram showing the structure of a terminal according to some other embodiments of the present disclosure.

FIG5 is a schematic structural diagram of a terminal according to still other embodiments of the present disclosure.

FIG. 6 is a schematic diagram showing the structure of an information processing system according to some embodiments of the present disclosure.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

The present disclosure proposes an information processing method, which is described below in conjunction with FIGS. 1 and 2 .

Fig. 1 is a flow chart of some embodiments of the information processing method of the present disclosure. As shown in Fig. 1, the method of this embodiment includes: steps S102 to S106.

In step S102, the terminal selects a PRACH resource for sending a preamble.

Similar to 4G, the random access technology used in 5G systems is generally 4-step RACH (Random Access Channel) technology. Five information exchanges are required between the terminal and the base station to complete the random access process, as follows.

(1) The terminal sends a message Msg1 to the base station. Msg1 includes a preamble, which is used by the base station to estimate the timing advance. (2) The base station sends a message Msg2 to the terminal. Msg2 is a random access response (RAR) to Msg1, which includes a preamble sequence identifier, a TA (Timing Advance) indication, uplink authorization information sent by the terminal to the base station in Msg3, and a temporary cell radio network temporary identifier (TC-RNTI). (3) The terminal sends a message Msg3 to the base station. When the terminal reads the preamble sequence identifier corresponding to Msg1 in Msg2, it uses the uplink authorization in Msg2 to send Msg3. The content of Msg3 is related to the event that triggers the random access process. (4) The base station sends a message Msg4 to the terminal. Msg4 is a response to resolve contention conflicts. When the terminal detects that Msg4 contains the contention conflict resolution identifier information corresponding to Msg3, the random access is deemed to be successful. (5) The terminal that successfully detects Msg4 sends an ACK confirmation message to the base station.

The present disclosure mainly enhances the process of sending Msg1 in the first step of random access, so that the base station can perceive the slice level that the terminal wants to access faster and more efficiently. If the terminal wants to send Preamble, it can also perform the following steps before step S102: (1) Select SSB (Synchronization Signal Block) or CSI-RS (Channel State Information-Reference Signal); (2) Select Preambleindex. The above steps (1) and (2) can refer to the existing standards and will not be repeated here. SSB or CSI-RS is used to select the PRACH resource for sending the preamble. The frequency domain position in the PRACH resource for sending the preamble can also be determined in combination with the RRC parameters msg1-FDM and msg1-FrequencyStart, and the time domain position in the PRACH resource for sending the preamble can also be determined in combination with the RRC parameter prach-ConfigurationIndex. The above RRC parameters are sent by the base station to the terminal. The specific method for selecting the PRACH resource for sending the preamble can refer to the existing standards and will not be repeated here.

In step S104, the terminal generates a RA-RNTI (Radom Access-Radio Network Temporary Identity) according to the information of the selected PRACH resource and the information of the slice level to be accessed by the terminal.

In some embodiments, the information of the selected PRACH resource includes: the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the PRACH selected in the system frame, the index of the PRACH selected in the frequency domain, and the uplink carrier used for preamble transmission. The information of the slice level that the terminal wants to access includes: the representation value of the slice level that the terminal wants to access. The terminal multiplies the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the PRACH selected in the system frame, the index of the PRACH selected in the frequency domain, the uplink carrier used for preamble transmission, and the representation value of the slice level that the terminal wants to access with the corresponding coefficients and then sums them to generate RA-RNTI. The coefficient corresponding to the representation value of the slice level that the terminal wants to access is determined according to the value range of the above-mentioned various information.

In some embodiments, the RA-RNTI is determined using the following formula:

RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×n×slice_id(1)

In formula (1), s_i represents the index of the first OFDM symbol of the selected PRACH (0≤s_id<14), t_id represents the index of the first time slot of the PRACH selected in the system frame (0≤t_id<80), f_id represents the index of the PRACH selected in the frequency domain (0≤f_id<8), ul_carrier_id represents the uplink carrier used for preamble transmission (0 represents a normal carrier, 1 represents a SUL (Supplementary Uplink) carrier), slice_id represents the representation value of the slice level to which the terminal wants to access, and slice_id is an integer. For example, n=2, n can also select other integer values greater than 1. For example, the larger the value of slice_id, the higher the slice level to which the terminal wants to access. For example, 0 represents a normal level slice, 1 represents a high level slice, 2 represents a higher level slice, and so on.

In the present disclosure, a representation value of the slice level is added when calculating RA-RNTI. Even if different terminals use the same time-frequency resources and select the same Preamble to send, different slices may still be used. In this case, the slice_id may be different, which reduces the risk of collision to a certain extent and improves the success rate of random access.

In some embodiments, information about a slice level to be accessed by a terminal is determined based on a slice type identifier in an identifier of the slice to be accessed, wherein the slice type identifier corresponds to the information about the slice level.

For example, each network slice is uniquely identified by S-NSSAI, which includes two parts: a slice type (Slice/Service type, SST) identifier, which is used to indicate the characteristics and service classification of the network slice; and a slice differentiator (SliceDifferentiator, SD) identifier, which is optional information and is used to indicate different slices within the same slice type. For example, the corresponding relationship between the slice type identifier and the representation value of the slice level is shown in Table 1.

Table 1

The correspondence between the slice type identifier (SST) and the slice level representation value (slice_id) is only an example. The value of slice_id and the correspondence with SST can be set according to actual needs and are not limited to the examples given. The terminal initiates random access. At this time, only the terminal knows its own slice identifier (S-NSSAI), and the slice_id can be determined according to the SST in the S-NSSAI.

In step S106, the terminal uses RA-RNTI to scramble the preamble code and sends it to the base station, so that the base station obtains the slice level that the terminal wants to access through RA-RNTI.

For example, the terminal generates a random access message Msg1, which includes a preamble and RA-RNTI. After sending Msg1, the terminal also saves the RA-RNTI. Since RA-RNTI carries the representation value of the slice level that the terminal wants to access, the base station can solve the RA-RNTI to know the slice level that the terminal wants to access. Before sending Msg1, the terminal can also determine the target received power PREAMBLE_RECEIVED_TARGET_POWER. The specific process can refer to the existing standards and will not be repeated here.

In the present disclosure, after the terminal selects the PRACH resource for sending the preamble, it generates RA-RNTI according to the information of the selected PRACH resource and the information of the slice level to be accessed, and then uses RA-RNTI to scramble the preamble and send it to the base station. In this way, the base station can obtain the slice level that the terminal wants to access through RA-RNTI. Since the preamble will be sent in the Msg1 stage, the base station can quickly and efficiently perceive the slice level of the terminal in the first signaling stage of random access, which has a high guiding significance for subsequent scheduling, etc., so that the base station can provide different services for terminals with slices of different levels faster and more efficiently. In addition, the disclosed solution makes little change to the existing random access process and has good backward compatibility.

Other embodiments of the information processing method disclosed herein are described below in conjunction with FIG. 2 .

Fig. 2 is a flow chart of some other embodiments of the information processing method of the present disclosure. As shown in Fig. 2, after step S106, the method further includes steps S202 to S212.

In step S202, the base station calculates information about the slice level that the terminal wants to access from the RA-RNTI based on the information about the PRACH resources of the received preamble code and the received RA-RNTI.

For example, after receiving Msg1 sent by the terminal, the base station can obtain information about the PRACH resource where the preamble is located, including: the index of the first OFDM symbol of the PRACH where the preamble is located, the index of the first time slot of the PRACH where the preamble is located in the system frame, and the index of the PRACH where the preamble is located in the frequency domain. The base station can substitute the information about the PRACH resource where the preamble is located into formula (1) to obtain a value A of 1+s_id+14×t_id+14×80×f_id. The base station subtracts A from the received RA-RNTI to obtain a value B of 14×80×8×ul_carrier_id+14×80×8×n×slice_id, divides B by 14×80×8×n to obtain C, rounds C down to the value of slice_id, and further obtains the value of ul_carrier_id.

After the base station identifies the slice level that the terminal wants to access, the base station can introduce a priority random access mechanism more specifically. Optionally, in step S204, the base station configures a corresponding conflict resolution strategy for the terminal according to the slice level that the terminal wants to access.

In some embodiments, the base station configures at least one of a power climbing parameter and a backoff time parameter corresponding to the slice level for the terminal according to the slice level that the terminal wants to access; wherein, the higher the slice level, the larger the power climbing parameter and the smaller the backoff time parameter.

The base station can set priority access parameters for high-level terminals. The larger the power ramp parameter, the greater the power increase value when the terminal initiates random access next time. The terminal can initiate random access with greater power and successfully complete random access with a greater probability. The smaller the backoff time parameter, the earlier the terminal initiates random access next time, and the terminal can complete random access faster. The conflict resolution strategy can also be configured according to actual needs, not limited to the examples given.

In step S206, the base station sends the RAR to the terminal, and correspondingly, the terminal receives the RAR sent by the base station.

After receiving Msg1, the base station (e.g. gNB) calculates the RA-RNTI and uses the RA-RNTI to scramble the CRC (Cyclic Redundancy Check) of the PDCCH (Physical Downlink Control Channel) DCI (Downlink Control Information) format 1_0 of Msg2. Therefore, only the terminal that sends Msg1 in the time-frequency resource identified by RA-RNTI can successfully decode the DCI of this PDCCH.

After sending the Preamble, the terminal will monitor the PDCCH within the RAR response time window (RA Response window) to receive the RAR corresponding to the RA-RNTI. If the RAR reply from the base station is not received within the RAR time window, it is considered that the random access process has failed.

In step S208, the terminal uses RA-RNTI to demodulate the RAR. If the demodulation is successful, it is determined that the base station has obtained the slice level that the terminal wants to access.

After receiving the RAR message, the terminal uses the stored RA-RNTI for descrambling. When it is found that demodulation can be successfully performed, the terminal also knows that the base station has identified its own slice level and uses the configuration information of the base station in the RAR to perform the next step.

Corresponding to step S204, optionally, in step S210, when demodulation is successful, the terminal obtains a conflict resolution strategy corresponding to the terminal.

The RAR includes a conflict resolution strategy corresponding to the terminal, for example, the base station configures at least one of a power ramping parameter and a backoff time parameter corresponding to the slice level for the terminal.

Optionally, in step S212, when a random access conflict occurs between the terminal and other terminals resulting in access failure, the terminal re-initiates random access according to a conflict resolution strategy.

When a random access conflict occurs in the terminal, resulting in access failure, the terminal re-initiates random access according to at least one of the power ramping parameters and the back-off time parameters corresponding to the slice level.

The solution disclosed in this disclosure innovatively proposes a method for RA-RNTI scrambling that can be quickly slice-aware, which enables the base station to identify high-level users in the cell in advance, thereby having a high guiding significance for subsequent scheduling, etc. It is more helpful to improve the slice enhancement mechanism on the wireless side and enhance the flexibility of the wireless side configuration from a customizable perspective. In addition, the RA-RNTI calculation method proposed in this disclosure, due to the increase in the representation value of the slice level, can reduce the risk of collision to a certain extent from a probability perspective. This disclosure makes little change to the existing process, has no impact on R15 or R16 users, and has good backward compatibility. For example, eMBB services can be completely regarded as normal-level slices, which has no impact on the existing mechanism.

The present disclosure also provides a terminal, which will be described below in conjunction with FIG. 3 .

FIG3 is a structural diagram of some embodiments of the terminal of the present disclosure. As shown in FIG3 , the terminal 30 of this embodiment includes: a resource selection module 310 , a RA-RNTI generation module 320 , and a sending module 330 .

The resource selection module 310 is used to select a physical random access channel PRACH resource for sending a preamble.

The RA-RNTI generation module 320 is used to generate a random access radio network temporary identifier RA-RNTI according to the information of the selected PRACH resource and the information of the slice level that the terminal wants to access.

In some embodiments, the information of the selected PRACH resource includes: the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the PRACH selected in the system frame, the index of the PRACH selected in the frequency domain, and the uplink carrier used for preamble code transmission, and the information of the slice level that the terminal wants to access includes: the representation value of the slice level that the terminal wants to access; the RA-RNTI generation module 320 is used to multiply the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the PRACH selected in the system frame, the index of the PRACH selected in the frequency domain, the uplink carrier used for preamble code transmission, and the representation value of the slice level that the terminal wants to access with the corresponding coefficients and then sum them to generate RA-RNTI.

In some embodiments, the RA-RNTI is determined using the following formula:

RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×slice_id

Among them, s_i represents the index of the first OFDM symbol of the selected PRACH, t_id represents the index of the first time slot of the PRACH selected in the system frame, f_id represents the index of the PRACH selected in the frequency domain, ul_carrier_id represents the uplink carrier used for preamble code transmission, slice_id represents the representation value of the slice level that the terminal wants to access, and slice_id is an integer.

In some embodiments, information about a slice level to be accessed by a terminal is determined based on a slice type identifier in an identifier of the slice to be accessed, wherein the slice type identifier corresponds to the information about the slice level.

The sending module 330 is used to scramble the preamble code using the RA-RNTI and send it to the base station so that the base station obtains the slice level that the terminal wants to access through the RA-RNTI.

In some embodiments, the sending module 330 is used to generate a random access message Msg1, where Msg1 includes a preamble and a RA-RNTI.

In some embodiments, the terminal 30 also includes: a receiving module 340, which is used to receive a random access response RAR sent by the base station; use RA-RNTI to demodulate the RAR, and if the demodulation is successful, determine that the base station has obtained the slice level that the terminal wants to access.

In some embodiments, the RAR includes a conflict resolution strategy corresponding to the terminal, and the conflict resolution strategy is configured for the terminal by the base station according to the slice level to which the terminal wants to access; the receiving module 340 is also used for the terminal to obtain the conflict resolution strategy corresponding to the terminal when the demodulation is successful; the sending module 330 is also used to re-initiate random access according to the conflict resolution strategy when a random access conflict occurs with other terminals, resulting in access failure.

The terminal or base station in the embodiments of the present disclosure may be implemented by various computing devices or computer systems, and the following description will be made taking the terminal as an example in conjunction with Figures 4 and 5. The structure of the base station is similar to that of Figures 4 and 5.

Fig. 4 is a structural diagram of some embodiments of the terminal of the present disclosure. As shown in Fig. 4, the terminal 40 of this embodiment includes: a memory 410 and a processor 420 coupled to the memory 410, and the processor 420 is configured to execute the information processing method in any of the embodiments of the present disclosure based on the instructions stored in the memory 410.

The memory 410 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, a database, and other programs.

FIG5 is a structural diagram of some other embodiments of the terminal disclosed in the present invention. As shown in FIG5 , the terminal 50 of this embodiment includes: a memory 510 and a processor 520, which are similar to the memory 410 and the processor 420, respectively. It may also include an input/output interface 530, a network interface 540, a storage interface 550, etc. These interfaces 530, 540, 550 and the memory 510 and the processor 520 may be connected, for example, via a bus 560. Among them, the input/output interface 530 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 540 provides a connection interface for various networked devices, for example, it can be connected to a database server or a cloud storage server, etc. The storage interface 550 provides a connection interface for external storage devices such as SD cards and USB flash drives.

The present disclosure also provides an information processing system, which will be described below in conjunction with FIG. 6 .

FIG6 is a structural diagram of some embodiments of the information processing system of the present disclosure. As shown in FIG6 , the information processing system 6 of this embodiment includes: a terminal 30 / 40 / 50 and a base station 62 .

The base station 62 is used to receive the preamble code sent by the terminal after being encrypted with the RA-RNTI, and obtain the slice level that the terminal wants to access through the RA-RNTI.

In some embodiments, the base station 62 is used to calculate information about the slice level that the terminal wants to access from the RA-RNTI based on the information about the PRACH resources of the received preamble code and the received RA-RNTI.

In some embodiments, the base station 62 is also used to configure a corresponding conflict resolution strategy for the terminal 30/40/50 according to the slice level that the terminal 30/40/50 wants to access.

In some embodiments, the base station 62 is used to configure at least one of the power climbing parameters and backoff time parameters corresponding to the slice level for the terminal 30/40/50 according to the slice level that the terminal 30/40/50 wants to access; wherein, the higher the slice level, the larger the power climbing parameter and the smaller the backoff time parameter.

Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

The present disclosure is described with reference to the flowchart and/or block diagram of the method, device (system), and computer program product according to the embodiment of the present disclosure. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of the process and/or box in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims (15)

1. An information processing method, comprising: The terminal selects a physical random access channel PRACH resource for sending a preamble, wherein the PRACH resource includes an index of a first OFDM symbol of the selected PRACH, an index of a first time slot of the PRACH selected in a system frame, an index of the PRACH selected in a frequency domain, and an uplink carrier for preamble transmission, and the information of the slice level to be accessed by the terminal includes: a representation value of the slice level to be accessed by the terminal; The terminal generates a random access radio network temporary identifier RA-RNTI according to the information of the selected PRACH resource and the information of the slice level to be accessed by the terminal, wherein the RA-RNTI is determined by the following formula: RA-RNTI = 1 + s_id + 14 × t_id + 14 × 80 × f_id + 14 × 80 × 8 × ul_carrier_id+14 × 80 × 8 × 2× slice_id Wherein, s_id represents the index of the first OFDM symbol of the selected PRACH, t_id represents the index of the first time slot of the selected PRACH in the system frame, f_id represents the index of the selected PRACH in the frequency domain, ul_carrier_id represents the uplink carrier used for preamble transmission, slice_id represents the representation value of the slice level to which the terminal wants to access, and slice_id is an integer; The terminal uses the RA-RNTI to scramble the preamble code and sends it to the base station, so that the base station obtains the slice level that the terminal wants to access through the RA-RNTI. 2. The information processing method according to claim 1, wherein the information of the slice level that the terminal wants to access is determined according to the slice type identifier in the identifier of the slice to access, wherein the slice type identifier corresponds to the information of the slice level. 3. The information processing method according to claim 1, wherein the terminal scrambles the preamble code by using the RA-RNTI comprises: The terminal generates a random access message Msg1, where the Msg1 includes the preamble and the RA-RNTI. 4. The information processing method according to claim 1, further comprising: The terminal receives a random access response RAR sent by the base station; The terminal demodulates the RAR using the RA-RNTI, and if the demodulation is successful, determines that the base station has acquired the slice level that the terminal wants to access. 5. The information processing method according to claim 4, wherein the RAR includes a conflict resolution strategy corresponding to the terminal, and the conflict resolution strategy is configured by the base station for the terminal according to the slice level to be accessed by the terminal; The method further comprises: When the demodulation is successful, the terminal obtains a conflict resolution strategy corresponding to the terminal; When a random access conflict occurs between the terminal and other terminals, resulting in access failure, the terminal re-initiates random access according to the conflict resolution strategy. 6. The information processing method according to claim 1, wherein the base station obtains the slice level that the terminal wants to access through the RA-RNTI comprises: The base station calculates information about the slice level that the terminal wants to access from the RA-RNTI based on the information about the PRACH resource of the received preamble code and the received RA-RNTI. 7. The information processing method according to claim 1, further comprising: The base station configures a corresponding conflict resolution strategy for the terminal according to the slice level that the terminal wants to access. 8. The information processing method according to claim 7, wherein the base station configures a corresponding conflict resolution strategy for the terminal according to the slice level to be accessed by the terminal, comprising: The base station configures, for the terminal according to a slice level to be accessed by the terminal, at least one of a power ramping parameter and a backoff time parameter corresponding to the slice level; Among them, the higher the slice level, the larger the power ramp parameter is, and the smaller the backoff time parameter is. 9. A terminal, comprising: A resource selection module, configured to select a physical random access channel PRACH resource for sending a preamble, wherein the PRACH resource includes an index of a first OFDM symbol of the selected PRACH, an index of a first time slot of the selected PRACH in a system frame, an index of the PRACH selected in a frequency domain, and an uplink carrier for preamble transmission, and the information of the slice level to be accessed by the terminal includes: a representation value of the slice level to be accessed by the terminal; The RA-RNTI generation module is used to generate a random access radio network temporary identifier RA-RNTI according to the information of the selected PRACH resource and the information of the slice level to be accessed by the terminal, wherein the RA-RNTI is determined by the following formula: RA-RNTI = 1 + s_id + 14 × t_id + 14 × 80 × f_id + 14 × 80 × 8 × ul_carrier_id+14 × 80 × 8 × 2× slice_id Wherein, s_id represents the index of the first OFDM symbol of the selected PRACH, t_id represents the index of the first time slot of the selected PRACH in the system frame, f_id represents the index of the selected PRACH in the frequency domain, ul_carrier_id represents the uplink carrier used for preamble transmission, slice_id represents the representation value of the slice level to which the terminal wants to access, and slice_id is an integer; The sending module is used to scramble the preamble code using the RA-RNTI and send it to the base station, so that the base station obtains the slice level that the terminal wants to access through the RA-RNTI. 10. A terminal, comprising: Processor; and A memory coupled to the processor, for storing instructions, wherein when the instructions are executed by the processor, the processor executes the information processing method according to any one of claims 1 to 8. 11. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented. 12. An information processing system, comprising: the terminal according to claim 9 or 10; and The base station is used to receive the preamble code sent by the terminal and encrypted with the RA-RNTI, and obtain the slice level that the terminal wants to access through the RA-RNTI. 13. The information processing system according to claim 12, wherein: The base station is used to calculate information about the slice level that the terminal wants to access from the RA-RNTI based on the information about the PRACH resource of the received preamble code and the received RA-RNTI. 14. The information processing system according to claim 12, wherein: The base station is also used to configure a corresponding conflict resolution strategy for the terminal according to the slice level that the terminal wants to access. 15. The information processing system according to claim 12, wherein: The base station is used to configure, for the terminal, at least one of a power ramping parameter and a backoff time parameter corresponding to the slice level according to the slice level to be accessed by the terminal; Among them, the higher the slice level, the larger the power ramp parameter is, and the smaller the backoff time parameter is.