CN115150966B

CN115150966B - Information processing method, system and terminal

Info

Publication number: CN115150966B
Application number: CN202110340288.7A
Authority: CN
Inventors: 宋谱; 许森; 孙震强; 张乐
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2024-11-01
Anticipated expiration: 2041-03-30
Also published as: CN115150966A

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 disclosure relates to the field of communication technologies, and in particular, to an information processing method, an information processing system and a terminal.

Background

In the 5G age, the large connectivity and mobility of the wireless communication devices are generally considered to assist in the transformation and innovation of industries such as manufacturing, transportation, energy and public service, medical care and the like, which makes wireless communication promising in the vertical industry market. These diverse vertical services bring about a wide range of performance requirements in terms of throughput, capacity, delay, mobility, reliability, location accuracy, etc.

The 3gpp r17 proposes a stand-off for slice enhancement, wherein how to enable a user to quickly access a cell supporting a given slice through RACH (Random ACCESS CHANNEL ) is an important research direction.

The existing signaling flow of Msg 1-4 and the like is to be randomly accessed between the terminal and the base station based on the contention-based random Access mechanism, and after the terminal completes random Access, the identification S-NSSAI of the slice requested by the network itself can be informed through RRC (Radio Resource Control) signaling or NAS (Non-Access Stratum) signaling (Single Network Slice Selection Assistance Information, single network slice selection auxiliary information).

Disclosure of Invention

The inventors found that: the hierarchy of slices may provide richer and more flexible services for different users. Users of higher level slices may be better served, e.g., faster access to the slice to be accessed. However, the existing random access mechanism cannot realize slice sensing, and all terminals need to wait until the random access is completed to inform the network of the slice requested by the terminals, so that the base station can know the slice to be accessed by the terminals. The base station cannot quickly acquire which terminals are to be accessed to the high-grade slice and which terminals are to be accessed to the low-grade slice, so that different services are provided for the terminals of different grades more quickly and efficiently.

One technical problem to be solved by the present disclosure is: how to make the base station know the slice level to be accessed by the terminal more quickly and more efficiently.

According to some embodiments of the present disclosure, there is provided an information processing method including: 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.

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 selected PRACH in the system frame, the index of the PRACH selected in the frequency domain, and the uplink carrier used for the preamble transmission, and the information of the slice level to be accessed by the terminal comprises: a representative value of the slice level to be accessed by the terminal; the terminal generating RA-RNTI according to the selected PRACH resource information and the information of the slice grade to be accessed by the terminal comprises the following steps: the terminal multiplies the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the selected PRACH in the system frame, the index of the PRACH selected in the frequency domain, the uplink carrier used for the preamble transmission, and the representation value of the slice level to be accessed by the terminal with the corresponding coefficients respectively, and then sums the multiplied representation values to generate the RA-RNTI.

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

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_i represents an index of a first OFDM symbol of the selected PRACH, t_id represents an index of a first slot of the selected PRACH in the system frame, f_id represents an index of the selected PRACH in the frequency domain, ul_carrier_id represents an uplink carrier for preamble transmission, slice_id represents a representation value of a slice level to be accessed by the terminal, and slice_id is an integer.

In some embodiments, the information of the slice level to be accessed by the terminal is determined according to a slice type identifier in the identifiers of the slices to be accessed, wherein the slice type identifier corresponds to the information of the slice level.

In some embodiments, the terminal scrambling the preamble with the RA-RNTI includes: the terminal generates a random access message Msg1, msg1 comprising a preamble and RA-RNTI.

In some embodiments, the method further comprises: the terminal receives a random access response RAR sent by the base station; and the terminal demodulates the RAR by utilizing the RA-RNTI, and under the condition that demodulation is successful, the base station determines that the base station acquires the slice level to be accessed by the terminal.

In some embodiments, the RAR includes a conflict resolution policy corresponding to the terminal, where the conflict resolution policy is configured for the terminal by the base station according to a slice level to be accessed by the terminal; the method further comprises the steps of: under the condition that the demodulation is successful, the terminal acquires a conflict resolution strategy corresponding to the terminal; under the condition that the terminal and other terminals generate random access conflict to cause access failure, re-initiating random access according to a conflict resolution strategy.

In some embodiments, the base station obtaining the slice level to be accessed by the terminal through the RA-RNTI includes: and the base station calculates the information of the slice level to be accessed by the terminal from the RA-RNTI according to the information of the PRACH resource of the received preamble and the received RA-RNTI.

In some embodiments, the method further comprises: and the base station configures a corresponding conflict resolution strategy for the terminal according to the slice level to be accessed by the terminal.

In some embodiments, the configuring, by the base station, a corresponding conflict resolution policy for the terminal according to a slice level to be accessed by the terminal includes: the base station configures at least one of a power climbing parameter and a rollback time parameter corresponding to the slice level for the terminal according to the slice level to be accessed by the terminal; wherein, the higher the slice level, the larger the power ramp parameter, and the smaller the back-off time parameter.

According to other embodiments of the present disclosure, there is provided a terminal including: a resource selection module, configured to select a physical random access channel PRACH resource for transmitting a preamble; the RA-RNTI generating module is used for generating 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; and the sending module is used for scrambling the lead code by utilizing the RA-RNTI and sending the lead code to the base station so that the base station can acquire the slice grade to be accessed by the terminal through the RA-RNTI.

According to still further embodiments of the present disclosure, there is provided a terminal including: a processor; and a memory coupled to the processor for storing instructions that, when executed by the processor, cause the processor to perform the information processing method of any of the embodiments described above.

According to still further embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements the steps of any of the foregoing embodiments of the information processing method.

According to still further embodiments of the present disclosure, there is provided an information processing system including: the terminal of any of the foregoing embodiments; and the base station is used for receiving the lead code which is sent by the terminal and is scrambled by utilizing the RA-RNTI, and acquiring the slice grade to be accessed by the terminal through the RA-RNTI.

In some embodiments, the base station is configured to calculate, from the RA-RNTI, information of a slice level to be accessed by the terminal, based on the information of PRACH resources of the received preamble and the received RA-RNTI.

In some embodiments, the base station is further configured to configure a corresponding conflict resolution policy for the terminal according to a slice level to which the terminal is to access.

In some embodiments, the base station is configured to configure at least one of a power ramp parameter and a backoff time parameter corresponding to a slice level for the terminal according to the slice level to be accessed by the terminal; wherein, the higher the slice level, the larger the power ramp parameter, and the smaller the back-off time parameter.

After selecting PRACH resources for transmitting a preamble, a terminal generates RA-RNTI according to the selected PRACH resources and the information of the slice level to be accessed, and then scrambles the preamble by utilizing the RA-RNTI and transmits the preamble to a base station. Thus, the base station can acquire the slice level to be accessed by the terminal through the RA-RNTI. The preamble is sent in the Msg1 stage, so that the base station can quickly and efficiently sense the slice level of the terminal in the first signaling stage of random access, has higher guiding significance for subsequent scheduling and the like, and can provide different services for the terminals with different levels of slices more quickly and efficiently. The scheme disclosed by the invention has little change to the existing random access flow and good backward compatibility.

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

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 illustrates a flow diagram of an information processing method of some embodiments of the present disclosure.

Fig. 2 shows a flow diagram of an information processing method of other embodiments of the present disclosure.

Fig. 3 illustrates a schematic structural diagram of a terminal of some embodiments of the present disclosure.

Fig. 4 shows a schematic structural diagram of a terminal of other embodiments of the present disclosure.

Fig. 5 shows a schematic structural diagram of a terminal of further embodiments of the present disclosure.

Fig. 6 illustrates a schematic diagram of the structure of an information processing system of some embodiments of the present disclosure.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

The present disclosure proposes an information processing method, which is described below with reference to fig. 1 to 2.

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

In step S102, the terminal selects PRACH resources for transmitting a Preamble (Preamble).

Similar to 4G, the Random access technology adopted in the 5G system is generally a 4-step RACH (Random ACCESS CHANNEL ) technology, and 5 times of information interaction between the terminal and the base station is required to complete the Random access procedure, which is specifically as follows.

(1) The terminal sends a message Msg1 to the base station, the Msg1 comprising a Preamble (Preamble) for timing advance estimation by the base station. (2) The base station transmits a message Msg2 to the terminal, wherein the Msg2 is a random access response (Random Access Response, RAR) of Msg1, and the random access response includes a preamble sequence identifier, a TA (TIMING ADVANCE ) indication, uplink authorization information of Msg3 transmitted by the terminal to the base station, a temporary cell radio network temporary identifier (TC-RNTI), and the like. (3) And the terminal sends a message Msg3 to the base station, when the terminal reads the preamble sequence identifier corresponding to the Msg1 in the Msg2, the terminal sends the Msg3 by using the uplink authorization in the Msg2, and the content of the Msg3 is related to an event triggering a random access process. (4) The base station sends a message Msg4 to the terminal, wherein the Msg4 is a response for resolving the contention conflict, and when the Msg4 detected by the terminal contains the related contention conflict resolution identification information in the corresponding Msg3, the random access is considered to be successful. (5) The terminal that successfully detects Msg4 sends an ACK acknowledgement to the base station.

The method and the device mainly aim at enhancing the process of sending the Msg1 in the first step in random access, so that the base station can sense the slice grade to be accessed by the terminal faster and more efficiently. The terminal may further perform the following steps before step S102: (1) Selecting SSB (Synchronization Signal Block ) or CSI-RS (CHANNEL STATE Information-REFERENCE SIGNAL, channel state Information reference signal); (2) selecting Preamble index. The above steps (1) and (2) may refer to the existing standard, and will not be described herein. The SSB or CSI-RS is used to select PRACH resources to transmit the preamble. The frequency domain location in the PRACH resource transmitting the preamble may also be determined in conjunction with RRC parameters msg1-FDM and msg1-FrequencyStart, while the time domain location in the PRACH resource transmitting the preamble may also be determined in conjunction with RRC parameter PRACH-ConfigurationIndex. The RRC parameters are transmitted from the base station to the terminal. The specific method for selecting PRACH resources for transmitting the preamble may refer to the existing standard, and will not be described herein.

In step S104, the terminal generates RA-RNTI (Radom Access-Radio Network Tempory Identity, random access radio network temporary identifier) according to the selected PRACH resource information and the information of the slice level to be accessed by the terminal.

In some embodiments, the information of the selected PRACH resource includes: an index of a first OFDM symbol of the selected PRACH, an index of a first slot of the selected PRACH in the system frame, an index of the selected PRACH in the frequency domain, and an uplink carrier for preamble transmission. The information of the slice level to be accessed by the terminal comprises: and the representative value of the slice level to be accessed by the terminal. The terminal multiplies the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the selected PRACH in the system frame, the index of the PRACH selected in the frequency domain, the uplink carrier used for the preamble transmission, and the representation value of the slice level to be accessed by the terminal with the corresponding coefficients respectively, and then sums the multiplied representation values to generate the RA-RNTI. And determining the coefficient corresponding to the representation value of the slice level to be accessed by the terminal according to the value range of the various information.

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

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 an index of a first OFDM symbol of the selected PRACH (0+.s_id < 14), t_id represents an index of a first slot of the selected PRACH in a system frame (0+.t_id < 80), f_id represents an index of the selected PRACH in a frequency domain (0+.f_id < 8), ul_carrier_id represents an uplink carrier (0 represents a normal carrier, 1 represents a SUL (Supplementary Uplink, supplementary uplink) carrier) for preamble transmission, slice_id represents a value representing a slice level to be accessed by a terminal, and slice_id is an integer. For example, n=2, n may also take other integer values greater than 1. For example, a larger value of slice_id indicates a higher slice level to be accessed by the terminal. 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 method, the representing value of the slice level is increased when the RA-RNTI is calculated, and even if different terminals use the same time-frequency resource and select the same Preamble to send, different slices can still be used, and at the moment, slice_id can be different, so that the risk of collision is reduced to a certain extent, and the success rate of random access is improved.

For example, each network slice is uniquely identified by S-NSSAI, and S-NSSAI includes two parts: slice type (Slice/SERVICE TYPE, SST) identification for indicating characteristics and service classification of the network Slice; slice differentiation (Slice Differentiator, SD) is identified as optional information for indicating different slices within the same slice type. For example, the correspondence of slice type identifiers and representation values of slice levels is shown in table 1.

TABLE 1

The above-mentioned correspondence between slice type identification (SST) and slice level representation value (slice_id) is only an example, and the slice_id value and the correspondence with SST may be set according to actual requirements, and are not limited to the illustrated example. The terminal initiates random access, at this time, only the terminal knows its own slice identifier (S-NSSAI), and can determine the slice_id according to the SST in S-NSSAI.

In step S106, the terminal scrambles the preamble with the RA-RNTI and transmits to the base station so that the base station obtains the slice level to be accessed by the terminal through the RA-RNTI.

For example, the terminal generates a random access message Msg1, msg1 including a preamble and RA-RNTI. The terminal also stores the RA-RNTI after sending the Msg 1. Because the RA-RNTI carries the representation value of the slice level to be accessed by the terminal, the base station can calculate the RA-RNTI to obtain the slice level to be accessed by the terminal. Before the Msg1 is sent, the terminal may also determine the TARGET RECEIVED POWER preamble_received_target_power, and the specific process may refer to the existing standard, which is not described herein.

Further embodiments of the information processing method of the present disclosure are described below in conjunction with fig. 2.

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

In step S202, the base station calculates the information of the slice level to be accessed by the terminal from the RA-RNTI according to the information of the PRACH resource of the received preamble and the received RA-RNTI.

For example, after receiving Msg1 sent by the terminal, the base station may obtain information of PRACH resources where the preamble is located, including: index of the first OFDM symbol of the PRACH where the preamble is located, index of the first slot of the PRACH where the preamble is located in the system frame, index of the PRACH where the preamble is located in the frequency domain. The base station may substitute the information of 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, and rounds down C to obtain a slice_id value, and further obtains a ul_carrier_id value.

After the base station identifies the slice level to be accessed by the terminal, the base station can more pertinently introduce a priority random access mechanism. Optionally, in step S204, the base station configures a corresponding conflict resolution policy for the terminal according to the slice level to be accessed by the terminal.

In some embodiments, the base station configures at least one of a power ramp parameter and a back-off time parameter corresponding to a slice level for the terminal according to the slice level to be accessed by the terminal; wherein, the higher the slice level, the larger the power ramp parameter, and the smaller the back-off time parameter.

The base station can set a priority access parameter for a high-level terminal, and the larger the power climbing parameter is, so that the terminal can initiate random access with larger power and can successfully complete random access with larger probability. The smaller the back-off time parameter is, the earlier the terminal initiates the random access next time, the faster the terminal can complete the random access. The conflict resolution policy may also be configured according to actual needs, not limited to the illustrated example.

In step S206, the base station transmits the RAR to the terminal, and the terminal receives the RAR transmitted by the base station.

After receiving Msg1, the base station (for example, gNB) calculates an RA-RNTI, and uses the RA-RNTI to scramble a CRC (Cyclic Redundancy Check ) of a format 1_0 of a PDCCH (Physical Downlink Control Channel ) DCI (Downlink Control Information, downlink control information) of Msg 2. Therefore, only the terminal transmitting Msg1 on the time-frequency resource identified by the RA-RNTI can successfully decode the DCI of this PDCCH.

After the terminal sends the Preamble, it will monitor the PDCCH in the RAR response time window (RA Response window) to receive the RAR corresponding to the RA-RNTI. If the RAR replied by the base station is not received in the RAR time window, the random access procedure is considered to be failed.

In step S208, the terminal demodulates the RAR with the RA-RNTI, and determines that the base station has acquired the slice level to be accessed by the terminal if the demodulation is successful.

The terminal uses the stored RA-RNTI to descramble after receiving the RAR message, and when the terminal finds that the RAR message can be successfully demodulated, the terminal also knows that the base station has identified the own slice level, and uses the configuration information of the base station in the RAR to perform the next operation.

In step S210, the terminal obtains a conflict resolution policy corresponding to the terminal if demodulation is successful.

The RAR includes a conflict resolution policy corresponding to the terminal, for example, the base station configures at least one of a power ramp parameter and a back-off time parameter corresponding to the slice level for the terminal.

Optionally, in step S212, in case that the terminal collides with another terminal to cause access failure, the random access is restarted according to the collision resolution policy.

And under the condition that the terminal fails in access due to the random access conflict, the terminal reinitiates random access according to at least one of the power ramp parameter and the back-off time parameter corresponding to the slice level.

The scheme innovation of the present disclosure provides a method for scrambling RA-RNTI capable of fast slice sensing, which enables a base station to identify high-level users in a cell in advance, thereby having higher guiding significance for subsequent scheduling and the like. The method is more beneficial to perfecting a slice enhancement mechanism of the wireless side, and improves the flexibility of configuration of the wireless side from a customizable perspective. In addition, the RA-RNTI calculation method provided by the disclosure can reduce the collision risk to a certain extent in terms of probability due to the fact that the representation value of the slice level is increased. The method has the advantages of small change to the existing flow, no influence on R15 or R16 users and good backward compatibility. E.g., eMBB traffic, can be considered fully normal level slicing, where there is no impact on existing mechanisms.

The present disclosure also provides a terminal, described below in connection with fig. 3.

Fig. 3 is a block diagram of some embodiments of a terminal of the present disclosure. As shown in fig. 3, the terminal 30 of this embodiment includes: a resource selection module 310, a ra-RNTI generation module 320, and a transmission module 330.

The resource selection module 310 is configured to select a physical random access channel PRACH resource for transmitting the preamble.

The RA-RNTI generating module 320 is configured to generate a random access radio network temporary identifier RA-RNTI according to the selected PRACH resource information 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 selected PRACH in the system frame, the index of the PRACH selected in the frequency domain, and the uplink carrier used for the preamble transmission, and the information of the slice level to be accessed by the terminal comprises: a representative value of the slice level to be accessed by the terminal; the RA-RNTI generating module 320 is configured to multiply the index of the first OFDM symbol of the selected PRACH, the index of the first time slot of the selected PRACH in the system frame, the index of the selected PRACH in the frequency domain, the uplink carrier used for preamble transmission, and the representation value of the slice level to be accessed by the terminal with the corresponding coefficients, respectively, and then sum the multiplied representation values to generate the RA-RNTI.

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

The sending module 330 is configured to scramble the preamble with the RA-RNTI and send the preamble to the 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 sending module 330 is configured to generate a random access message Msg1, where Msg1 includes a preamble and RA-RNTI.

In some embodiments, the terminal 30 further comprises: a receiving module 340, configured to receive a random access response RAR sent by a base station; and demodulating the RAR by utilizing the RA-RNTI, and determining that the base station acquires the slice level to be accessed by the terminal under the condition of successful demodulation.

In some embodiments, the RAR includes a conflict resolution policy corresponding to the terminal, where the conflict resolution policy is configured for the terminal by the base station according to a slice level to be accessed by the terminal; the receiving module 340 is further configured to obtain a conflict resolution policy corresponding to the terminal when the demodulation is successful; the sending module 330 is further configured to reinitiate random access according to a collision resolution policy in a case that a random access collision occurs with another terminal, resulting in access failure.

The terminals or base stations in embodiments of the present disclosure may each be implemented by various computing devices or computer systems, and are described below in connection with fig. 4 and 5 by way of example of a terminal. The structure of the base station is similar to that of fig. 4 and 5.

Fig. 4 is a block diagram of some embodiments of a 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, the processor 420 being configured to perform the information processing method in any of the embodiments of the present disclosure based on instructions stored in the memory 410.

The memory 410 may include, for example, system memory, fixed nonvolatile storage media, and the like. The system memory stores, for example, an operating system, application programs, boot Loader (Boot Loader), database, and other programs.

Fig. 5 is a block diagram of other embodiments of a terminal of the present disclosure. As shown in fig. 5, the terminal 50 of this embodiment includes: memory 510 and processor 520 are similar to memory 410 and processor 420, respectively. Input/output interface 530, network interface 540, storage interface 550, and the like may also be included. These interfaces 530, 540, 550, as well as the memory 510 and the processor 520, may be connected by a bus 560, for example. The input/output interface 530 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, a touch screen, etc. The network interface 540 provides a connection interface for various networking devices, such as may be connected to a database server or cloud storage server, or the like. The storage interface 550 provides a connection interface for external storage devices such as SD cards, U discs, and the like.

The present disclosure also provides an information handling system, described below in connection with FIG. 6.

FIG. 6 is a block diagram of some embodiments of the information handling system of the present disclosure. As shown in fig. 6, the information processing system 6 of this embodiment includes: terminals 30/40/50, and base stations 62.

The base station 62 is configured to receive a preamble sent by a terminal and scrambled with an RA-RNTI, and obtain a slice level to be accessed by the terminal through the RA-RNTI.

In some embodiments, the base station 62 is configured to calculate the information of the slice level to be accessed by the terminal from the RA-RNTI according to the information of the PRACH resource of the received preamble and the received RA-RNTI.

In some embodiments, the base station 62 is further configured to configure the corresponding conflict resolution policy for the terminal 30/40/50 according to the slice level to be accessed by the terminal 30/40/50.

In some embodiments, the base station 62 is configured to configure at least one of a power ramp-up parameter and a back-off time parameter corresponding to a slice level for the terminal 30/40/50 according to the slice level to be accessed by the terminal 30/40/50; wherein, the higher the slice level, the larger the power ramp parameter, and the smaller the back-off time parameter.

It will be appreciated by those skilled in the art that embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover any and all modifications, equivalents, improvements or alternatives falling within the spirit and principles of the present disclosure.

Claims

1. An information processing method, comprising:

The terminal selects a physical random access channel PRACH resource for transmitting a preamble, wherein the PRACH resource comprises 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 selected PRACH in a frequency domain, and an uplink carrier for transmitting the preamble, and the information of a slice level to be accessed by the terminal comprises: the representative 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 adopting 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 an index of a first OFDM symbol of the selected PRACH, t_id represents an index of a first time slot of the selected PRACH in a system frame, f_id represents an index of the selected PRACH in a frequency domain, ul_carrier_id represents an uplink carrier for preamble transmission, slice_id represents a representation value of a slice level to be accessed by the terminal, and slice_id is an integer;

And the terminal utilizes the RA-RNTI to scramble the lead code and sends the lead code to a base station, so that the base station can acquire the slice grade to be accessed by the terminal through the RA-RNTI.

2. The information processing method according to claim 1, wherein the information of the slice level to be accessed by the terminal is determined according to a slice type identifier in the identifier of the slice to be accessed, wherein the slice type identifier corresponds to the information of the slice level.

3. The information processing method of claim 1, wherein the scrambling the preamble with the RA-RNTI by the terminal comprises:

The terminal generates a random access message, msg1, the Msg1 comprising 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;

And the terminal demodulates the RAR by utilizing the RA-RNTI, and under the condition that demodulation is successful, the base station is determined to acquire the slice grade to be accessed by the terminal.

5. The information processing method according to claim 4, wherein the RAR includes a conflict resolution policy corresponding to the terminal, where the conflict resolution policy is configured for the terminal by the base station according to a slice level to be accessed by the terminal;

The method further comprises the steps of:

under the condition that the demodulation is successful, the terminal acquires a conflict resolution strategy corresponding to the terminal;

and under the condition that the terminal and other terminals generate random access conflict to cause access failure, re-initiating random access according to the conflict resolution strategy.

6. The information processing method of claim 1, wherein the base station obtaining the slice level to be accessed by the terminal through the RA-RNTI comprises:

and the base station calculates the information of the slice level to be accessed by the terminal from the RA-RNTI according to the information of the PRACH resource of the received preamble and the received RA-RNTI.

7. The information processing method according to claim 1, further comprising:

And the base station configures a corresponding conflict resolution strategy for the terminal according to the slice level to be accessed by the terminal.

8. The information processing method according to claim 7, wherein the configuring, by the base station, a corresponding conflict resolution policy for the terminal according to a slice level to which the terminal is to access includes:

The base station configures at least one of a power climbing parameter and a rollback time parameter corresponding to a slice grade for the terminal according to the slice grade to be accessed by the terminal;

Wherein, the higher the slice level is, the larger the power climbing parameter is, and the smaller the back-off time parameter is.

9. A terminal, comprising:

A resource selection module, configured to select a physical random access channel PRACH resource for transmitting a preamble, where 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 selected PRACH in a frequency domain, and an uplink carrier for preamble transmission, and information of a slice level to be accessed by the terminal includes: the representative value of the slice level to be accessed by the terminal;

The RA-RNTI generation module is used for generating 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 adopting the following formula:

And the sending module is used for scrambling the lead code by utilizing the RA-RNTI and sending the lead code to a base station so that the base station can acquire the slice grade to be accessed by the terminal through the RA-RNTI.

10. A terminal, comprising:

a processor; and

A memory coupled to the processor for storing instructions that, when executed by the processor, cause the processor to perform the information processing method of any of claims 1-8.

11. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements the steps of the method of any of claims 1-8.

12. An information processing system, comprising: the terminal of claim 9 or 10; and

And the base station is used for receiving the lead code which is sent by the terminal and is scrambled by utilizing the RA-RNTI, and acquiring the slice grade to be accessed by the terminal through the RA-RNTI.

13. The information handling system of claim 12, wherein,

And the base station is used for calculating the information of the slice level to be accessed by the terminal from the RA-RNTI according to the information of the PRACH resource of the received preamble and the received RA-RNTI.

14. The information handling system of claim 12, wherein,

The base station is further configured to configure a corresponding conflict resolution policy for the terminal according to the slice level to be accessed by the terminal.

15. The information handling system of claim 12, wherein,

The base station is used for configuring at least one of a power climbing parameter and a rollback time parameter corresponding to a slice grade for the terminal according to the slice grade to be accessed by the terminal;