Access Method and Device

Abstract

An embodiment of the present application provides an access method and apparatus. The method includes: receiving configuration signaling sent by a network-side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein the preamble sequence channel and the data information channel respectively occupy different frequency bands; sending a preamble sequence and data information according to the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence. Through the access method and apparatus provided by the embodiments of the present application, the network side simultaneously configures the time-frequency domain resources of the preamble sequence channel and the data information channel, realizes that the preamble sequence and the data information respectively occupy different frequency domain resources for transmission, reduces the scheduling signaling overhead, and significantly increases the number of terminals supported by the network.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and particularly to an access method and apparatus. Background Art

[0002] With the development and changes in mobile communication and the explosive growth in the number of connected devices, it is expected that by 2030, the number of connected devices will be more than six times that in 2020. The connected devices are mainly machine-type devices. In terms of specific key technical indicators, the density of connected devices may reach tens of millions of terminals per square kilometer. Therefore, multiple organizations have started to research new wireless communication systems, namely 6G (Sixth Generation Wireless Communication Technology).

[0003] For the initial access of a huge number of terminals, using the RACH (Random Access Channel) technology of NR (New Radio) for access will be limited by the network's coordination signaling resources and cannot accommodate such a large number of connected devices. Using ordinary contention access technology will also cause network congestion due to a relatively high collision probability. Therefore, a new random access technology is needed. Summary of the Invention

[0004] In view of the problems existing in the prior art, the access method and apparatus provided in the embodiments of this application are provided.

[0005] In a first aspect, the access method provided in the embodiments of this application is applied to a user terminal, and the method includes:

[0006] Receiving configuration signaling sent by a network-side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0007] Sending a preamble sequence and data information according to the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence.

[0008] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0009] The frequency band position of the preamble sequence channel;

[0010] The frequency band position of the data information channel;

[0011] The time domain period of the preamble sequence channel and the data information channel;

[0012] The time domain start position of the preamble sequence channel and the data information channel;

[0013] The time domain duration of the preamble sequence channel and the data information channel.

[0014] Optionally, the method further includes:

[0015] Selecting the preamble sequence from a preamble sequence resource pool based on a preset selection rule, where the preset selection rule includes at least one of the following: random selection, determination based on user identity information, and determination based on data information.

[0016] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0017] Optionally, the method further includes:

[0018] Determining a RA-RNTI (Random Access Radio Network Temporary Identity) based on the sending position of the preamble sequence;

[0019] Obtaining a first eRA-RNTI (extend Random Access Radio Network Temporary Identity) by extending the RA-RNTI in a preset extension manner;

[0020] Wherein, the preset extension manner includes at least one of the following: extending based on bits in user identity information, extending based on bits in data information, and extending based on extension bits obtained from the network side device in advance.

[0021] Optionally, the method further includes:

[0022] The first eRA-RNTI is obtained from the network side device in advance.

[0023] Optionally, the method further includes:

[0024] Receiving a feedback message sent by the network side device, where the feedback message explicitly or implicitly includes a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network side device based on the RA-RNTI in the preset extension manner or is specified by the network side device;

[0025] Verifying the feedback message based on the first eRA-RNTI and the second eRA-RNTI.

[0026] In a second aspect, the access method provided in the embodiments of the present application is further applied to a network side device, and the method includes:

[0027] Send configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0028] Receive a preamble sequence and data information sent by a user terminal, and obtain the data information based on the transmission format determined by the preamble sequence and the data information channel.

[0029] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0030] The frequency band position of the preamble sequence channel;

[0031] The frequency band position of the data information channel;

[0032] The time domain period of the preamble sequence channel and the data information channel;

[0033] The time domain start position of the preamble sequence channel and the data information channel;

[0034] The time domain duration length of the preamble sequence channel and the data information channel.

[0035] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0036] Optionally, the method further includes:

[0037] Send a feedback message to the user terminal, where the feedback message explicitly or implicitly includes a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network side device based on the RA-RNTI in a preset extension manner or is specified by the network side device, and the RA-RNTI is determined based on the sending position of the preamble sequence;

[0038] Wherein, the preset extension manner includes at least one of the following: extending based on bits in user identity information, extending based on bits in data information, and extending based on extension bits previously obtained from the network side device.

[0039] Optionally, the channel configuration information further includes:

[0040] Configure multiple sets of parameters for indicating the time-frequency domain resources of the preamble sequence channel and the data information channel, each set of parameters includes different frequency bands, and each set of parameters is different from each other or partially different.

[0041] In a third aspect, the access device provided in the embodiments of the present application further includes a memory, a transceiver, and a processor;

[0042] The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to execute the computer programs in the memory and implement the following steps:

[0043] Receive a configuration signaling sent by a network-side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0044] Send a preamble sequence and data information according to the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence.

[0045] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0046] The frequency band position of the preamble sequence channel;

[0047] The frequency band position of the data information channel;

[0048] The time domain period of the preamble sequence channel and the data information channel;

[0049] The time domain start position of the preamble sequence channel and the data information channel;

[0050] The time domain duration length of the preamble sequence channel and the data information channel.

[0051] Optionally, the steps further include:

[0052] Select the preamble sequence from a preamble sequence resource pool based on a preset selection rule, and the preset selection rule includes at least one of the following: random selection, determination based on user identity information, and determination based on data information.

[0053] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0054] Optionally, the steps further include:

[0055] Determine the RA-RNTI based on the transmission position of the preamble sequence;

[0056] Obtain a first eRA-RNTI for the RA-RNTI according to a preset expansion method;

[0057] Among them, the preset expansion method includes at least one of the following: expanding based on bits in the user identity information, expanding based on bits in the data information, and expanding based on expansion bits pre-obtained from the network-side device.

[0058] Optionally, the step further includes:

[0059] The first eRA-RNTI is pre-obtained from a network-side device.

[0060] Optionally, the step further includes:

[0061] Receiving a feedback message sent by the network-side device, where the feedback message explicitly or implicitly includes a second eRA-RNTI; where the second eRA-RNTI is obtained by the network-side device based on the RA-RNTI according to the preset expansion method or is specified by the network-side device;

[0062] Verifying the feedback message based on the first eRA-RNTI and the second eRA-RNTI.

[0063] Fourthly, an access device provided in an embodiment of the present application further includes a memory, a transceiver, and a processor;

[0064] The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to execute the computer program in the memory and implement the following steps:

[0065] Sending configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; where the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0066] Receiving a preamble sequence and data information sent by a user terminal, and obtaining the data information based on a transmission format determined by the preamble sequence and the data information channel.

[0067] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0068] The frequency band position of the preamble sequence channel;

[0069] The frequency band position of the data information channel;

[0070] The time domain period of the preamble sequence channel and the data information channel;

[0071] The time domain start position of the preamble sequence channel and the data information channel;

[0072] The time domain duration lengths of the preamble sequence channel and the data information channel.

[0073] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0074] Optionally, the step further includes:

[0075] Sending a feedback message to the user terminal, where the feedback message explicitly or implicitly includes a second eRA-RNTI; where the second eRA-RNTI is obtained by the access device based on the RA-RNTI according to a preset extension method or is specified by the access device, and the RA-RNTI is determined based on the sending position of the preamble sequence;

[0076] Wherein, the preset extension method includes at least one of the following: extension based on bits in the user identity information, extension based on bits in the data information, and extension based on extension bits pre-obtained from the access device.

[0077] Optionally, the channel configuration information further includes:

[0078] Configuring multiple sets of parameters to indicate the time-frequency domain resources of the preamble sequence channel and the data information channel, each set of parameters includes different frequency bands, and each set of parameters is different from each other or partially different.

[0079] In a fifth aspect, an access device provided by an embodiment of the present application is applied to a user terminal, and the device includes:

[0080] A receiving module, configured to receive a configuration signaling sent by a network side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes the time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0081] A sending module, configured to send the preamble sequence channel and the data information channel according to the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence.

[0082] In a sixth aspect, an access device provided by an embodiment of the present application is applied to a network side device, and the device includes:

[0083] A sending module, configured to send a configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes the time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0084] A receiving and obtaining module, configured to receive a preamble sequence and data information sent by a user terminal, and obtain the data information based on a transmission format determined by the preamble sequence and a data information channel.

[0085] In a seventh aspect, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the steps of the access method described in the first aspect above, or execute the steps of the access method described in the second aspect above.

[0086] For the access method and apparatus provided in the embodiments of the present application, the network side simultaneously configures the time-frequency domain resources of the preamble sequence and the data information channel through configuration signaling, so that the preamble sequence and the data information occupy different frequency domain resources for transmission respectively, reducing the scheduling signaling overhead and significantly increasing the number of terminals supported by the network. Description of the Drawings

[0087] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0088] Figure 1 is one of the schematic flowcharts of the access method provided by the embodiment of the present application;

[0089] Figure 2 is the second of the schematic flowcharts of the access method provided by the embodiment of the present application;

[0090] Figure 3 is one of the schematic structural diagrams of the access device provided by the embodiment of the present application;

[0091] Figure 4 is the second of the schematic structural diagrams of the access device provided by the embodiment of the present application;

[0092] Figure 5 is one of the schematic structural diagrams of the access apparatus provided by the embodiment of the present application;

[0093] Figure 6 is the second of the schematic structural diagrams of the access apparatus provided by the embodiment of the present application. Detailed Embodiments

[0094] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0095] In the embodiments of the present application, the term "plurality" refers to two or more, and other quantifiers are similar.

[0096] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0097] In current wireless communication technologies, the four-step RACH (Random Access Channel) process adopted by LTE (Long Term Evolution) uses a preamble for access. If there is no collision, the identity information is determined through the interaction between the network and the terminal, and then data transmission begins. The process of data transmission requires scheduling or pre-configuring resources, which limits the number of terminals. The two-step RACH process adopted by NR uses a preamble for access and simultaneously sends user information. Although it can increase the number of preambles and reduce the time occupied by the preamble, theoretically improving the utilization efficiency of the preamble, still, the identity information needs to be determined through the interaction between the network and the terminal before data transmission can begin, and the process of data transmission requires scheduling or pre-configuring resources, which limits the number of terminals.

[0098] The above two technologies require the network to send coordination signaling to coordinate the resource overhead, which limits the number of terminals that the network can support. In addition, there is also a relatively large delay.

[0099] When a large number of terminals are connected, the transmission of preamble sequences and data information by the terminals both involve network pre-allocated resources. Here, the resources mainly refer to the resources of network coordination signaling. Taking the four-step RACH in LTE and the two-step RACH in NR as examples, the estimation of the required coordination signaling resources is as follows. In LTE, the network side needs to perform two downlink transmissions, and in NR, the network side needs to perform one downlink transmission, which correspondingly occupies the PDCCH (Physical Downlink Control Channel) and the PDSCH (Physical Downlink Shared Channel). If it is assumed that each downlink transmission occupies an orthogonal PRB (Physical Resource Block), for a cell with one million user terminals and a corresponding activation rate of 5%, the four-step RACH and the two-step RACH respectively require 100,000 and 50,000 PRBs, which will be a huge overhead and even an unattainable resource quantity.

[0100] For the network to pre-allocate preamble sequence resources and data information resources, this configuration coordination signaling is for all users in a certain cell, not for a single user. All terminals will share the preamble sequence resources and data information resources. In the four-step RACH in LTE and the two-step RACH in NR, all terminals share the preamble sequence resources. All terminals share the data information resources, and different terminals will be distinguished through the coding domain or the spreading domain.

[0101] The core idea of the embodiments of this application is that the network side realizes the configuration of the time-frequency domain resources of the preamble sequence channel and the data information channel through configuration signaling. Among them, the periods of the time domain resources are the same, and the preamble sequence channel and the data information channel are frequency-division, that is, they occupy different frequency domain resource blocks PRBs. The preamble sequence is used to directly or indirectly control the transmission format (checking, coding, interleaving, scrambling, modulation, resource mapping, etc.) of the data information channel.

[0102] To distinguish the relationship between the common control channel and the data channel, the following supplementary explanations are provided: (1) Only one (ZC, Zadoff-Chu) sequence is sent on the preamble sequence channel, which is different from the bit filling by field of the control channel. (2) The serial number of the preamble sequence is used to select a transmission format corresponding to the serial number among various data information channel transmission formats, which is different from the control channel determining the data information channel transmission format by field.

[0103] The access method and device of this application will be described below with specific embodiments.

[0104] Figure 1 is one of the schematic flowcharts of the access method provided by the embodiments of this application. AsFigure 1 As shown in Figure 1 , the access method is applied to a user terminal, and the method includes:

[0105] Step 101, receive a configuration signaling sent by a network-side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0106] In the field of wireless communication, the network-side device notifies all terminals through SIB2 that user terminals are allowed to transmit preambles on specific time-frequency resources. The user terminal sends corresponding preambles on the PRACH channel. The preambles are derived from the root sequences of one or more Zadoff-Chu sequences and are generated by cyclic shifting the Zadoff-Chu sequences. There are 64 preambles in a cell. The network-side configures the available preambles in the cell and broadcasts the first Zadoff-Chu root sequence through the parameter "rootSequencelndex" (taking values between 0 and 837) in SIB2. The root sequences are cyclically shifted according to certain rules to generate corresponding PRACH preambles. The different synchronicities of PRACH uplink transmissions lead to uncertainties in transmission delays. Therefore, it is required to maintain sufficient intervals between the corresponding cyclic shifts, so not all cyclic shifts can be used as orthogonal sequences. If the number of available cyclic shift preambles is less than 64, the next Zadoff-Chu root sequence is selected according to certain rules, and new PRACH preambles are generated by cyclic shifting.

[0107] The data information channel is obtained from the corresponding mapping relationship between the preamble sequence and the PUSCH resource location. The user terminal listens to the PDCCH and PDSCH channels and sends messages to obtain the feedback messages from the network-side device within a time window.

[0108] As can be seen from the above content, in the prior art, the preamble sequence channel and the data information channel are usually configured separately, which will occupy more wireless resources and increase the overhead of scheduling instructions. However, in this application, the configurations of the preamble sequence channel and the data information channel are combined through a configuration signaling, and different frequency bands are configured for the preamble sequence channel and the data information channel respectively. And this configuration signaling can be an RRC message, or other protocol layer messages or signaling, making its configuration method more flexible. At the same time, the preamble sequence channel and the data information channel are transmitted on different frequency bands, reducing the limitation on the number of access users and meeting the requirements of massive terminal access in the 6G network.

[0109] Step 102, send a preamble sequence and data information according to the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence.

[0110] The configuration signaling realizes the configuration of the time-domain resources and frequency-domain resources of both the preamble sequence channel and the data information channel in the same signaling. The preamble sequence is transmitted in the preamble sequence channel and is transmitted according to the time-domain resources or frequency band corresponding to the preamble sequence channel in the configuration information. The data information is transmitted in the data information channel and is transmitted according to the time-domain resources or frequency band corresponding to the data information in the configuration information.

[0111] There can be multiple ways for the transmission format of the data information channel, and the specific way to be selected is determined based on the preamble sequence.

[0112] The access method provided by the embodiment of the present application realizes that the preamble sequence and the data information transmission respectively occupy different frequency bands by the network side sending configuration signaling, which can simultaneously configure the time-frequency domain resources of the preamble sequence and the data information channel, reduces the scheduling signaling overhead, and significantly increases the number of terminals supported by the network. At the same time, the transmission format of the data information channel is determined based on the preamble sequence, which improves the flexibility of setting the transmission format of the data information channel.

[0113] Optionally, on the basis of the above embodiment, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0114] The frequency band position of the preamble sequence channel;

[0115] The frequency band position of the data information channel;

[0116] The time-domain period of the preamble sequence channel and the data information channel;

[0117] The time-domain start position of the preamble sequence channel and the data information channel;

[0118] The time-domain duration length of the preamble sequence channel and the data information channel.

[0119] Specifically, in terms of frequency domain resources, the configuration of different frequency bands for the preamble sequence channel and the data information channel is determined by two parameters in the channel configuration information, namely, the "frequency band position of the preamble sequence channel" and the "frequency band position of the data information channel". One is the frequency band position of the preamble sequence channel, which is used to characterize the frequency domain resources of the preamble sequence channel, such as RG (Resource Grid), RE (Resource Elements), RB (Resource Blocks), RBG (Resource Block Group), REG (Resource Element Group), CCE (Control Channel Element), BWP (bandwidth part), the starting position and / or frequency range of the frequency, etc.; the other is the frequency band position of the data information channel, which is used to characterize the frequency domain resources of the data information channel, such as RG, RE, RB, RBG, REG, CCE, BWP, the starting position and / or frequency range of the frequency, etc.

[0120] The access method provided by the embodiment of the present application realizes the flexible configuration of the frequency domain resources of the preamble sequence channel and the data information channel by specifically specifying the frequency domain resources of the preamble sequence channel and the data information channel, such as RG, RE, RB, RBG, REG, CCE, BWP, the starting position and / or frequency range of the frequency, etc. in the frequency domain resource position information in the channel configuration information. It improves the flexibility of the configuration, reduces the scheduling signaling overhead, and significantly increases the number of terminals supported by the network.

[0121] Specifically, in terms of time domain resources, the time domain configuration of the preamble sequence channel and the data information channel is determined by three parameters in the channel configuration information. One is the time domain period of the preamble sequence channel and the data information channel, which is used to characterize the time domain period of the preamble sequence channel and the data information channel. For example, when the parameter is (50) or (50, 50), it means that the time domain periods of both the preamble sequence channel and the data information channel are 50; when the parameter is (50, 60), it respectively means that the time domain period of the preamble sequence channel is 50 and the time domain period of the data information channel is 60. In the present application, the time domain periods of the preamble sequence channel and the data information channel are the same. Therefore, when the parameter has two values, the two values are equal.

[0122] Second, it is the time-domain starting position of the preamble sequence channel and the data information channel. For example, when this parameter is (10) or (10, 10), it means that the time-domain starting positions of both the preamble sequence channel and the data information channel are 10; when this parameter is (10, 20), it respectively means that the time-domain starting position of the preamble sequence channel is 10, and the time-domain starting position of the data information channel is 20.

[0123] Third, it is the time-domain duration of the preamble sequence channel and the data information channel. It represents the time-domain resource size of the preamble sequence channel and the data information channel, that is, the occupied time length. For example, when this parameter is (15) or (15, 15), it means that the time-domain durations of both the preamble sequence channel and the data information channel are 15; when this parameter is (15, 18), it respectively means that the time-domain duration of the preamble sequence channel is 15, and the time-domain duration of the data information channel is 18.

[0124] The access method provided by the embodiment of the present application realizes flexible configuration of the time-domain resources of the preamble sequence channel and the data information channel in the same instruction by specifically specifying the time-domain period, the time-domain starting position, and the time-domain duration, etc. of the time-domain resource position information in the channel configuration information. It improves the flexibility of configuration, reduces the scheduling signaling overhead, and significantly increases the number of terminals supported by the network.

[0125] Based on the above embodiments, optionally, the method further includes:

[0126] Selecting the preamble sequence from the preamble sequence resource pool based on a preset selection rule, where the preset selection rule includes at least one of the following: random selection, determination based on user identity information, and determination based on data information.

[0127] Specifically, the preset selection rules include at least one of the following: random selection, or determination based on user identity information, or determination based on data information. That is, the user terminal obtains a preamble sequence from the preamble sequence resource pool through random selection, or determination based on user identity information, or determination based on data information, and the number of bits of each preamble sequence is the same. If the preset selection rule is one of the above three, then the preamble sequence is obtained from the preamble sequence resource pool according to one of random selection, or determination based on user identity information, or determination based on data information; if the preset selection rule is a combination of the above two, for example, assuming that the number of bits of the preamble sequence in the preamble sequence resource pool is P, according to random selection, or determination based on user identity information, a preamble sequence A1 is obtained from the preamble sequence resource pool based on random selection, and a preamble sequence B1 is obtained from the preamble sequence resource pool according to user identity information. The first M bits of the preamble sequence A1 are intercepted to obtain the preamble sequence A11, and the last N bits of the preamble sequence B1 are intercepted to obtain the preamble sequence B11. The two parts are spliced to obtain a new preamble sequence A11 + B11, satisfying M + N = P, that is, the number of bits of the new preamble sequence A11 + B11 is equal to the number of bits of any preamble sequence in the preamble sequence pool.

[0128] If the preset selection rule is a combination of the above three, for example, a preamble sequence A2 is obtained from the preamble sequence resource pool according to random selection, or a preamble sequence B2 is obtained from the preamble sequence resource pool according to user identity information, or a preamble sequence C2 is obtained from the preamble sequence resource pool according to data information. The first M bits of the preamble sequence A2 are intercepted to obtain the preamble sequence A21, the middle Mth to (P - N - 1)th bits of the preamble sequence B2 are intercepted to obtain a preamble sequence B21 with P - M - N bits, and the first and last N bits of the preamble sequence C2 are intercepted to obtain the preamble sequence C21. The three parts are spliced to obtain a new preamble sequence A21 + B21 + C21, and the corresponding number of bits is P, which is the same as the number of bits of any preamble sequence in the preamble sequence pool.

[0129] The above is only an exemplary description. The specific interception method and splicing method of the preamble sequence obtained from the preamble sequence resource pool are not limited here, as long as the number of bits of the preamble sequence obtained after interception and then spliced to obtain a new preamble sequence is the same as the number of bits of any preamble sequence in the preamble sequence resource pool.

[0130] Among them, the user identity information includes the user's IMSI, or TMSI, or IP, etc., and the data information includes the first M bits of the user service data; the specific method of determining according to user identity information or according to data information can be to directly map the identity information or data information to the serial number of the preamble sequence in the resource pool to determine the corresponding preamble sequence.

[0131] In the access method provided by the embodiment of the present application, the preamble sequence is selected from a preamble sequence resource pool based on a preset selection rule. There are various selections and combinations for the preset selection rule. Through the preset selection rule, the flexibility of preamble sequence selection is improved.

[0132] Based on the above embodiment, optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0133] Specifically, after the terminal selects a preamble sequence, it is necessary to determine the transmission format of the data information. In the present application, the transmission format of the data information is set according to the preamble sequence selected from the preamble sequence resource pool. Specifically, the serial number of the preamble sequence is X. The terminal can use at least one method to determine the transmission format of the data information. a) Among Y1 PN sequences, according to Z = X mod Y1, the PN sequence with the serial number Z is obtained, and the user service data is spread at the bit level or symbol level using this sequence. b) Among Y2 PN sequences, according to Z = X mod Y2, the PN sequence with the serial number Z is obtained, and the user service data is scrambled at the bit level or symbol level using this sequence. c) Among Y3 PN sequences, according to Z = X mod Y3, the PN sequence with the serial number Z is obtained, and the CRC bits of the user service data are scrambled at the bit level using this sequence. d) Among Y4 interleaving methods, according to Z = X mod Y4, the interleaving method with the serial number Z is obtained, and the data information is interleaved using this interleaving method. Through this operation, the connection between the preamble sequence and the data information is established. The corresponding network-side device needs to detect the preamble sequence first when receiving the relevant message. If the detection is successful, the data information can be further detected.

[0134] Similarly, for checking, encoding, modulation, and resource mapping in the transmission format, similar methods can be used to determine them, which will not be elaborated here.

[0135] The transmission format of the data information can adopt any one or a combination of spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping. Through different transmission formats, different processing methods are adopted for the data information to achieve different functions. For example, functions such as spreading and interleaving, scrambling can be realized simultaneously, or functions such as spreading, encoding, and modulation can be realized separately.

[0136] In the access method provided by the embodiment of the present application, through various settings of the transmission format of the data information, different functions corresponding to different transmission formats of the data information are realized, and multiple transmission formats can be configured simultaneously, improving the flexibility of the configuration of the transmission format of the data information.

[0137] Based on the above embodiment, optionally, the method further includes:

[0138] Determine the RA-RNTI based on the transmission position of the preamble sequence;

[0139] Obtain the first eRA-RNTI for the RA-RNTI according to a preset extension method;

[0140] Wherein, the preset extension method includes at least one of the following: extension based on bits in the user identity information, extension based on bits in the data information, and extension based on extension bits obtained from the network side device in advance.

[0141] Specifically, the user terminal selects a suitable RO (RACH Occasion) and sends it out. When sending, the RA-RNTI is calculated according to the RO. Among them, the transmission position of the preamble sequence is the RO.

[0142] In the 6G network, with a huge number of terminals accessing, the original RA-RNTI can no longer meet the needs of such a large number of terminals. In order to distinguish a huge number of terminals, including active and temporarily inactive ones, it is necessary to extend to eRA-RNTI. The main purpose is for the network side to confirm the data of the terminal. The confirmation information (such as HARQ-ACK, Hybrid Automatic Repeat reQuest ACK) should contain the unique identity of the terminal. Since access / transmission / detection / feedback, etc. require a long time, the RA-RNTI cannot meet the requirements and must be extended. The extension method can be to add bits in the user identity information or data information to the RA-RNTI, or it can be the extension bits obtained from the network side device in advance.

[0143] For example, when using the bits in the user identity information for extension, if the RA-RNTI is 16 bits and needs to be extended to an N-bit eRA-RNTI, then use the user identity bits, obtain its first N - 16 bits, and perform bitwise filling on the basis of the original RA-RNTI to obtain the N-bit eRA-RNTI.

[0144] For example, when using the bits in the data information for extension, obtain its first N - 16 bits, and perform bitwise filling on the basis of the original RA-RNTI to obtain the N-bit eRA-RNTI.

[0145] For example, when using the extension bits obtained from the network side device in advance, the network side directly informs the user terminal of the number of bits to be extended and the specific content of the bits to be extended through the corresponding signaling.

[0146] It is also possible to adopt a combination of any two of the extension methods, for example, an extension based on bits in the user identity information and an extension based on bits in the data information are combined. The first c bits of the user identity information are intercepted, and the first d bits of the data information are intercepted. The c-bit user identity information and the d-bit data information are filled bit by bit on the basis of the original RA-RNTI to obtain an N-bit eRA-RNTI, where c + d = N - 16 is required.

[0147] Similarly, it is also possible to adopt a combination of three of the extension methods. For example, the first c bits of the user identity information are intercepted, the first d bits of the data information are intercepted, and e bits of extended bits pre-sent by the network-side device are obtained. The c-bit user identity information, the d-bit data information, and the e-bit extended bits pre-sent by the network-side device are filled bit by bit on the basis of the original RA-RNTI to obtain an N-bit eRA-RNTI, where c + d + e = N - 16 is required.

[0148] Based on the above embodiments, optionally, the method further includes: the first eRA-RNTI is obtained from the network-side device in advance.

[0149] Specifically, the user terminal receives a signaling message sent by the network-side device, which includes the eRA-RNTI, and the user terminal uses the eRA-RNTI directly allocated by the network side for the access process.

[0150] The access method provided by the embodiments of the present application meets the requirements of a huge number of terminals accessing the network by extending the RA-RNTI. Specifically, the extension method can adopt various forms, or can be directly configured by the network side to flexibly configure the corresponding eRA-RNTI, improving the flexibility of the user terminal to obtain the eRA-RNTI.

[0151] Based on the above embodiments, optionally, a feedback message sent by the network-side device is received, and the feedback message explicitly or implicitly includes a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network-side device based on the RA-RNTI according to the preset extension method or is specified by the network-side device;

[0152] Based on the first eRA-RNTI and the second eRA-RNTI, the feedback message is verified.

[0153] Specifically, the network-side device receives the preamble sequence and data information of the user terminal, uses the correlation detection method to obtain the corresponding preamble sequence. If the preamble sequence detection is successful, then based on the same method as that of the user terminal side, the corresponding transmission format is obtained, and the data information sent by the user terminal is obtained to complete the detection of the data information. If the detection is successful, a corresponding feedback message is sent, and the feedback message explicitly or implicitly includes the second eRA-RNTI. That the feedback message explicitly includes the second eRA-RNTI means that the specific information of the second eRA-RNTI is directly included in the feedback message body. That the feedback message implicitly includes the second eRA-RNTI means that there is a storage space in the feedback message body, each bit points to a specific position, and the eRA-RNTI information is stored at the corresponding position. The terminal side can obtain the corresponding second eRA-RNTI information by knowing the specific bit in the storage space.

[0154] The second eRA-RNTI is obtained by the network-side device based on the RA-RNTI according to the preset extension method or is specified by the network-side device;

[0155] The user terminal verifies based on the first eRA-RNTI obtained by local extension and the second eRA-RNTI in the feedback message to determine the feedback information specifically sent to this terminal. And based on the feedback information, the user terminal determines the next operation. Specifically, if the data information detection is successful, the user terminal enters the HARQ-ACK process; if only the preamble sequence detection is successful and the data information detection fails, the user terminal enters the 4-step RACH process.

[0156] The access method provided by the embodiment of the present application determines the time-frequency domain resources of the preamble sequence and the data information channel by receiving the configuration signaling sent by the network side, and the preamble sequence and the data information are transmitted on different frequency bands respectively, which meets the requirement of a large number of terminals accessing the network, reduces the scheduling signaling overhead, and significantly improves the number of supported terminals.

[0157] Figure 2 It is the second schematic diagram of the process of the access method provided by the embodiment of the present application. As Figure 2 shown, this access method is applied to a network device, and the method includes:

[0158] Step 201, send configuration signaling, and the configuration signaling includes channel configuration information; the channel configuration information includes the time-frequency domain resources of the preamble sequence channel and the data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0159] Specifically, the network-side device combines the configuration of the preamble sequence channel and the data information channel in one signaling by sending configuration signaling, and configures different frequency-domain resources for the preamble sequence channel and the data information channel at the same time, so as to realize the transmission of the preamble sequence channel and the data information channel in different frequency domains, reduce the limitation on the number of access users, and meet the requirements of massive terminal access in the 6G network.

[0160] Step 202: Receive the preamble sequence and data information sent by the user terminal, and obtain the data information based on the transmission format determined by the preamble sequence and the data information channel.

[0161] Specifically, receive the preamble sequence sent by the user terminal through the preamble sequence channel, and receive the data information sent by the user terminal through the data information channel. Among them, receiving the data information sent by the user terminal specifically includes: first, using the correlation detection method to obtain the preamble sequence sent by the user terminal, and obtaining the transmission format determined based on the preamble sequence, and obtaining the data information sent by the user terminal in the data information channel.

[0162] Based on the above embodiments, optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0163] The frequency band position of the preamble sequence channel;

[0164] The frequency band position of the data information channel;

[0165] The time domain period of the preamble sequence channel and the data information channel;

[0166] The time domain start position of the preamble sequence channel and the data information channel;

[0167] The time domain duration length of the preamble sequence channel and the data information channel.

[0168] Specifically, in terms of frequency-domain resources, the configuration of different frequency bands for the preamble sequence channel and the data information channel is determined by two parameters in the channel configuration information, namely, the "frequency band position of the preamble sequence channel" and the "frequency band position of the data information channel". One is the frequency band position of the preamble sequence channel, which is used to characterize the frequency-domain resources of the preamble sequence channel, such as RG (Resource Grid), RE (Resource Elements), RB (Resource Blocks), RBG (Resource Block Group), REG (Resource Element Group), CCE (Control Channel Element), BWP (bandwidth part), the starting position and / or frequency range of the frequency, etc.; the other is the frequency band position of the data information channel, which is used to characterize the frequency-domain resources of the data information channel, such as RG, RE, RB, RBG, REG, CCE, BWP, the starting position and / or frequency range of the frequency, etc.

[0169] The access method provided by the embodiments of the present application realizes the flexible configuration of the frequency-domain resources of the preamble sequence channel and the data information channel in the same instruction by specifically specifying the frequency-domain resource information such as RG, RE, RB, RBG, REG, CCE, BWP, the starting position and / or frequency range of the frequency, etc. in the frequency-domain resource position information in the channel configuration information. It improves the flexibility of the configuration, reduces the scheduling signaling overhead, and significantly increases the number of terminals supported by the network.

[0170] Specifically, in terms of time-domain resources, the time-domain configuration of the preamble sequence channel and the data information channel is determined by three parameters in the channel configuration information. One is the time-domain period of the preamble sequence channel and the data information channel, which is used to characterize the time-domain period of the preamble sequence channel and the data information channel. The second is the time-domain starting position of the preamble sequence channel and the data information channel. The third is the time-domain duration of the preamble sequence channel and the data information channel. If the time-domain resources of the preamble sequence channel and the data information channel are determined by separate parameters respectively, it means that the time-domain resources of the preamble sequence channel and the data information channel are different. The specific parameter examples are the same as those on the user terminal side and will not be elaborated here.

[0171] The access method provided by the embodiment of the present application realizes the flexible configuration of the time-domain resources of the preamble sequence channel and the data information channel in the same instruction by specifically specifying the time-domain period, the time-domain start position, and the time-domain duration length, etc. in the channel configuration information. It improves the flexibility of configuration, reduces the scheduling signaling overhead, and significantly increases the number of terminals supported by the network.

[0172] Based on the above embodiment, optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0173] Specifically, after the terminal selects the preamble sequence, it is necessary to determine the transmission format of the data information. In the present application, the transmission format of the data information is set according to the determined preamble sequence; specifically, the serial number of the preamble sequence is X, and the terminal can use at least one method to determine the transmission format of the data information. a) Among Y1 PN sequences, according to Z = X mod Y1, the PN sequence with serial number Z is obtained, and the user service data is spread at the bit level or symbol level using this sequence. b) Among Y2 PN sequences, according to Z = X mod Y2, the PN sequence with serial number Z is obtained, and the user service data is scrambled at the bit level or symbol level using this sequence. c) Among Y3 PN sequences, according to Z = X mod Y3, the PN sequence with serial number Z is obtained, and the CRC bits of the user service data are scrambled at the bit level using this sequence. d) Among Y4 interleaving methods, according to Z = X mod Y4, the interleaving method with serial number Z is obtained, and the data information is interleaved using this interleaving method. Through this operation, the connection between the preamble sequence and the data information is established. The corresponding network-side device needs to detect the preamble sequence first when receiving the relevant message. If the detection is successful, the data information can be further detected.

[0174] Similarly, checking, encoding, modulation, and resource mapping in the transmission format can be determined in a similar manner, which will not be elaborated here.

[0175] The transmission format of the data information can adopt any one or a combination of spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping. By different transmission formats, different processing methods are adopted for the data information to achieve different functions. For example, functions such as spreading and interleaving, scrambling can be realized simultaneously, or functions such as spreading, encoding, modulation can be realized separately.

[0176] The access method provided by the embodiment of the present application realizes different functions corresponding to different transmission formats of the data information through various settings of the transmission format of the data information, and can configure multiple transmission formats simultaneously, improving the flexibility of the configuration of the transmission format of the data information.

[0177] Based on the above embodiments, optionally, the method further includes:

[0178] Sending a feedback message to the user terminal, where the feedback message carries a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network-side device based on the RA-RNTI according to a preset extension method or is specified by the network-side device, and the RA-RNTI is determined based on the transmission position of the preamble sequence;

[0179] Wherein, the preset extension method includes at least one of the following: extension based on bits in the user identity information, extension based on bits in the data information, and extension based on extension bits pre-transmitted by the network-side device.

[0180] Specifically, the network-side device receives the preamble sequence and data information of the user terminal, uses a correlation detection method to obtain the corresponding preamble sequence. If the preamble sequence detection is successful, then based on the same method as the user terminal side, obtains the corresponding transmission format, obtains the data information, and completes the detection of the data information. If the detection is successful, sends a feedback message, and the feedback message carries a second eRA-RNTI; there are two specific carrying methods: explicit or implicit. The feedback message explicitly includes the second eRA-RNTI, which means that the specific information of the second eRA-RNTI is directly included in the feedback message body. The feedback message implicitly includes the second eRA-RNTI, which means that there is a storage space in the feedback message body, each bit points to a specific position, and the eRA-RNTI information is stored at the corresponding position. The terminal side can obtain the corresponding second eRA-RNTI information by knowing the specific bit in the storage space.

[0181] Where the second eRA-RNTI is obtained by the network-side device based on the RA-RNTI according to the preset extension method or is specified by the network-side device; the preset extension method can be to add bits in the user identity information or data information to the RA-RNTI, or it can be that the network itself determines the extension bits.

[0182] The implementation form of the specific extension method is the same as that of the user terminal and will not be elaborated here.

[0183] The access method provided by the embodiments of this application meets the need for a large number of terminals to access the network by extending the RA-RNTI. The specific extension method can adopt various forms, or it can be directly configured by the network side to flexibly configure the corresponding eRA-RNTI. It improves the flexibility for the user terminal to obtain the eRA-RNTI.

[0184] Based on the above embodiments, optionally, the channel configuration information further includes: configuring multiple sets of parameters for indicating the time-frequency domain resources of the preamble sequence channel and the data information channel, each set of parameters includes different frequency domains, and each set of parameters is different from each other or partially different.

[0185] Specifically, the configuration signaling sent by the network device includes channel configuration information. There may be multiple sets of parameters in the channel configuration information. The time-frequency domain resources of the preamble sequence channel and the data information channel can be configured in each set of parameters; and the preamble sequence channel and the data information channel respectively occupy different frequency bands. That is, the preamble sequence channel and the data information channel respectively occupy different frequency domain resource blocks. And each set of parameters can be different from each other or partially different. It is possible to configure the time-frequency resources for multiple user terminals, and each user terminal can obtain one set of parameters and complete the corresponding configuration.

[0186] The access method provided by the embodiments of this application, through the configuration signaling sent by the network side, this signaling can simultaneously configure the time-frequency domain resources of the preamble sequence and the data information channel, realize that the preamble sequence and the data information respectively occupy different frequency domain resources for transmission, and multiple sets of parameters can be configured in this signaling to realize the configuration of multiple user terminals, reduce the scheduling signaling overhead, and significantly increase the number of terminals supported by the network. At the same time, the transmission format of the data information channel is determined based on the preamble sequence, which improves the flexibility of setting the transmission format of the data information channel.

[0187] Compared with the prior art, the innovation point of this application is that "the network pre-configures different frequency domain resource blocks for the preamble sequence channel and the data information channel", including (a) using a network pre-configuration signaling to simultaneously configure the preamble sequence channel resources and the data information channel resources, (b) using a new transmission method, that is, the accessed preamble sequence and data information are jointly transmitted, (c) different from the format of using preamble combined with data in WiFi, in this format, preamble and data can only use TDM (time-division multiplexing technology), because without the coordination of the AP (Access Point), they are jointly transmitted successively in the time domain, and there are a huge number of terminals in the 6G network, and the TDM technology limits the number of access users, so this format cannot be directly applied to NR or 6G. (d) When accessing, both the preamble sequence and the data information are jointly transmitted in the FDM (Frequency Division Multiplexing) manner, and there is a clear association between the two, that is, the transmission format of the data information is determined by the preamble sequence. After the preamble is detected correctly, the preamble is used as a parameter to detect the data information, and the joint transmission is considered successful only after the data information is detected correctly.

[0188] The following uses a specific example to illustrate that the configuration signaling sent by the network device includes channel configuration information. The channel configuration information further includes: configuring multiple sets of parameters for indicating the time-frequency domain resources of the preamble sequence channel and the data information channel, each set of parameters includes different frequency bands, and each set of parameters is different from each other or partially different.

[0189] (1) When the network configures the time-frequency domain resources, it can be multiple sets of configurations. The parameters of each set can be partially different. Each set of parameters includes the time-frequency domain resources of the preamble sequence channel and the data information channel. Among them, the period of the time domain resources is the same, and the preamble sequence channel and the data information channel are frequency division, that is, they occupy different physical resource blocks (PRBs) in the frequency domain.

[0190] The configuration signaling here is a network pre-configuration RRC signaling, and the name of this signaling is URATConfigCommon. The specific design is as follows:

[0191]

[0192] Among them, the common RRC signaling URATConfigCommon within the cell range guides the terminal to jointly perform the random access and data transmission processes. This signaling includes at least 5 parameters: the period (periodicity) of URAT, the starting position (timeDomainOffset) of the time domain resources of URAT, the size (timeDomainAllocation) of the time domain resources of URAT, the frequency domain resource position (preambleFrequencyDomainAllocation) of the preamble sequence for random access in URAT, and the frequency domain resource position (dataFrequencyDomainAllocation) of the data in URAT. It can be seen from the parameter configuration that the preamble sequence for random access and the service data will occupy the same time domain resource position and different frequency domain resource positions and are transmitted jointly. This is completely different from the prior art, where the prior art always transmits the preamble sequence for access first and then transmits the data after successful access.

[0193] For different service characteristics, such as different services with different delay requirements, data block sizes, etc., the network can configure multiple sets of parameters in one configuration signaling, which is equivalent to one or more sub-signalings. When there are multiple sub-signalings, each sub-signaling is the above-mentioned signaling URATConfigCommon.

[0194] The data information sent by the user terminal includes:

[0195] ·Preamble (Option 1 carries no information, Option 2 carries identity information or partial identity information, Option 3 carries signaling information, Option 4 carries data, Option 5 carries data CRC). If the amount of information carried is large, more preamble is required.

[0196] ·Identity information (Option 1 is TMSI - type information, Option 2 is eRA - RNTI, Option 3 is empty and contains RA - RNTI). Among them, eRA - RNTI extends the 16 - bit RA - RNTI to N bits and can support up to 10 million terminals.

[0197] ·Uplink access information (Option 1 is RRC connection request and tracking information update, Option 2 is data transmission format including PDMA resource location and large - block data indication, Option 3 is empty).

[0198] ·Data (Option 1 is small - packet service data, Option 2 is empty). The data here may occupy more resources.

[0199] Specifically, the preamble item is sent through the preamble sequence channel. When the preamble includes Option 2, if there is enough storage space in the identity information item to save, the user identity information is saved in the identity information item; if the storage space of the identity information item is insufficient, the part of the user's identity information that exceeds its storage space is saved to the data item.

[0200] When the preamble includes Option 3, it indicates the preset transmission format.

[0201] When the preamble includes Option 4, it means that the data item is also carried.

[0202] When the preamble includes Option 5, it means that the data CRC is also carried.

[0203] Among them, for Option 3 of the identity information, although it is empty, it implies the information of RA - RNTI.

[0204] In addition, the identity information item, the uplink access information item, and the data item can all be sent through the data information channel.

[0205] Figure 3 It is one of the structural schematic diagrams of the access device provided by the embodiments of the present application. As Figure 3 shown, the access device includes a memory 320, a transceiver 310, and a processor 300. Among them, the processor 300 and the memory 320 can also be physically separated.

[0206] The memory 320 is used to store computer programs; the transceiver 310 is used to transmit and receive data under the control of the processor.

[0207] Specifically, the transceiver 310 is used to receive and send data under the control of the processor 300.

[0208] Among them, in Figure 3 The bus architecture may include any number of interconnected buses and bridges, specifically various circuits represented by one or more processors represented by the processor 300 and the memory represented by the memory 320 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so this application will not further describe them. The bus interface provides an interface. The transceiver 310 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on the transmission medium, and these transmission media include wireless channels, wired channels, optical fiber cables and other transmission media. For different user terminals, the user interface 830 may also be an interface capable of externally connecting and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0209] The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 can store the data used by the processor 300 when executing operations.

[0210] The processor 300 may be a CPU, ASIC, FPGA or CPLD, and the processor may also adopt a multi-core architecture.

[0211] The processor 300, by calling the computer program stored in the memory 320, is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. For example:

[0212] Receive configuration signaling sent by a network-side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0213] Send a preamble sequence and data information according to the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence.

[0214] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0215] The frequency band position of the preamble sequence channel;

[0216] The frequency band position of the data information channel;

[0217] The time domain period of the preamble sequence channel and the data information channel;

[0218] The time-domain starting positions of the preamble sequence channel and the data information channel;

[0219] The time-domain duration lengths of the preamble sequence channel and the data information channel.

[0220] Optionally, the step further includes:

[0221] Selecting the preamble sequence from a preamble sequence resource pool based on a preset selection rule, where the preset selection rule includes at least one of the following: random selection, determination based on user identity information, and determination based on data information.

[0222] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0223] Optionally, the step further includes:

[0224] Determining the RA-RNTI based on the transmission position of the preamble sequence;

[0225] Obtaining a first eRA-RNTI for the RA-RNTI according to a preset extension method;

[0226] Wherein, the preset extension method includes at least one of the following: extension based on bits in user identity information, extension based on bits in data information, and extension based on extension bits obtained from the network-side device in advance.

[0227] Optionally, the step further includes:

[0228] The first eRA-RNTI is obtained from the network-side device in advance.

[0229] Optionally, the step further includes:

[0230] Receiving a feedback message sent by the network-side device, where the feedback message explicitly or implicitly includes a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network-side device based on the RA-RNTI according to the preset extension method or is specified by the network-side device;

[0231] Verifying the feedback message based on the first eRA-RNTI and the second eRA-RNTI.

[0232] Figure 4 It is the second schematic structural diagram of the access device provided by the embodiments of the present application. As Figure 4 shown, the access device includes a memory 420, a transceiver 410, and a processor 400; wherein, the processor 400 and the memory 420 may also be physically separated.

[0233] A memory 420 for storing computer programs; a transceiver 410 for transmitting and receiving data under the control of a processor 400.

[0234] Specifically, the transceiver 410 is used to receive and transmit data under the control of the processor 400.

[0235] Among them, in Figure 4 The bus architecture may include any number of interconnected buses and bridges, specifically various circuits represented by one or more processors represented by the processor 400 and the memory represented by the memory 420 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so this application will not further describe them. The bus interface provides an interface. The transceiver 410 may be multiple components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, and these transmission media include wireless channels, wired channels, optical fiber cables, etc. The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store the data used by the processor 400 when executing operations.

[0236] The processor 400 may be a CPU, ASIC, FPGA or CPLD, and the processor may also adopt a multi-core architecture.

[0237] The processor 400, by invoking the computer program stored in the memory 420, is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. For example:

[0238] Send configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; among them, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0239] Receive a preamble sequence and data information sent by a user terminal, and obtain the data information based on the transmission format determined by the preamble sequence and the data information channel.

[0240] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0241] The frequency band position of the preamble sequence channel;

[0242] The frequency band position of the data information channel;

[0243] The time domain period of the preamble sequence channel and the data information channel;

[0244] The time domain start position of the preamble sequence channel and the data information channel;

[0245] The time domain duration lengths of the preamble sequence channel and the data information channel.

[0246] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0247] Optionally, the step further includes:

[0248] Sending a feedback message to the user terminal, where the feedback message carries a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the access device based on the RA-RNTI according to a preset extension method or is specified by the access device, and the RA-RNTI is determined based on the sending position of the preamble sequence;

[0249] Wherein, the preset extension method includes at least one of the following: extension based on bits in the user identity information, extension based on bits in the data information, and extension based on extension bits pre-obtained from the access device.

[0250] Optionally, multiple sets of parameters are configured to indicate the time-frequency domain resources of the preamble sequence channel and the data information channel, each set of parameters includes different frequency bands, and each set of parameters is different from each other or partially different.

[0251] It should be noted here that the above access device provided in the embodiments of the present application can implement all the method steps implemented in the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0252] Figure 5 is one of the schematic structural diagrams of the access device provided in the embodiments of the present application. As Figure 5 shown, the device is applied to a user terminal and includes:

[0253] A receiving module 501, configured to receive a configuration signaling sent by a network side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes the time-frequency domain resources of a preamble sequence channel and a data information channel; wherein the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0254] A sending module 502, configured to send a preamble sequence channel and a data information channel based on the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence.

[0255] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0256] The frequency band position of the preamble sequence channel;

[0257] The frequency band position of the data information channel;

[0258] The time domain period of the preamble sequence channel and the data information channel;

[0259] The time domain start position of the preamble sequence channel and the data information channel;

[0260] The time domain duration length of the preamble sequence channel and the data information channel.

[0261] Optionally, the apparatus further includes a determining module 503, configured to select the preamble sequence from a preamble sequence resource pool based on a preset selection rule, where the preset selection rule includes at least one of the following: random selection, determination based on user identity information, and determination based on data information.

[0262] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0263] Optionally, the determining module 503 is further configured to determine the RA-RNTI based on the transmission position of the preamble sequence;

[0264] Obtain a first eRA-RNTI for the RA-RNTI according to a preset extension method;

[0265] Wherein, the preset extension method includes at least one of the following: extension based on bits in user identity information, extension based on bits in data information, and extension based on extension bits previously obtained from the network side device.

[0266] Optionally, the first eRA-RNTI is previously obtained from the network side device.

[0267] Optionally, the receiving module 501 is further configured to receive a feedback message sent by the network side device, where the feedback message explicitly or implicitly includes a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network side device based on the RA-RNTI according to the preset extension method or is specified by the network side device;

[0268] Verify the feedback message based on the first eRA-RNTI and the second eRA-RNTI.

[0269] Figure 6 It is the second structural schematic diagram of the access device provided by the embodiments of the present application. As Figure 6 shown, the apparatus is applied to a network side device and includes:

[0270] A sending module 601, configured to send configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0271] A receiving and obtaining module 602, configured to receive a preamble sequence and data information sent by a user terminal, and obtain the data information based on a transmission format determined by the preamble sequence and the data information channel.

[0272] Optionally, the channel configuration information includes the following parameters for indicating the time-frequency domain resources:

[0273] The frequency band position of the preamble sequence channel;

[0274] The frequency band position of the data information channel;

[0275] The time domain period of the preamble sequence channel and the data information channel;

[0276] The time domain starting position of the preamble sequence channel and the data information channel;

[0277] The time domain duration length of the preamble sequence channel and the data information channel.

[0278] Optionally, the transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

[0279] Optionally, the sending module 601 is further configured to send a feedback message to the user terminal, where the feedback message carries a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network side device based on the RA-RNTI in a preset extension manner or is specified by the network side device, and the RA-RNTI is determined based on the sending position of the preamble sequence;

[0280] Wherein, the preset extension manner includes at least one of the following: extension based on bits in user identity information, extension based on bits in data information, and extension based on extension bits obtained from the network side device in advance.

[0281] Optionally, the channel configuration information further includes:

[0282] Multiple sets of parameters are configured to indicate the time-frequency domain resources of the preamble sequence channel and the data information channel, each set of parameters includes different frequency bands, and each set of parameters is different from each other or partially different.

[0283] It should be noted that the division of units in the embodiments of the present application is illustrative, merely a logical function division, and there may be other division methods in actual implementation. In addition, in each embodiment of the present application, each functional unit may be integrated in a processing unit, may exist independently physically for each unit, or two or more units may be integrated in one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0284] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0285] It should be noted here that the above-mentioned device provided in the embodiments of the present application can implement all the method steps implemented in the above-mentioned method embodiments and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0286] On the other hand, the embodiments of the present application also provide a processor-readable storage medium. The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the access method provided in the above-mentioned embodiments, including: receiving a configuration signaling sent by a network-side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0287] Sending a preamble sequence and data information according to the time-frequency domain resources; wherein, the transmission format of the data information is determined by the preamble sequence.

[0288] On the other hand, the embodiments of the present application also provide a processor-readable storage medium. The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the access method provided in the above-mentioned embodiments, including:

[0289] Send configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes time-frequency domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands;

[0290] Receive a preamble sequence and data information sent by a user terminal, and obtain the data information based on the transmission format determined by the preamble sequence and the data information channel.

[0291] The processor-readable storage medium can be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NANDFLASH), solid-state drives (SSD)).

[0292] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program codes.

[0293] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0294] These processor-executable instructions can also be stored in a processor-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 processor-readable memory generate a manufactured article including instruction means, and the instruction means implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0295] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable apparatus to generate a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one process Figure 1 one process or a plurality of processes and / or blocks Figure 1 steps of the functions specified in one block or a plurality of blocks.

[0296] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to cover these changes and modifications.

Claims

1. An access method, characterized in that, Applied to a user terminal, the method includes: Receiving configuration signaling sent by a network-side device, the configuration signaling including channel configuration information, the channel configuration information including time-domain resources and frequency-domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands; Sending a preamble sequence and data information according to the time-domain resources and frequency-domain resources; wherein, the transmission format of the data information is determined by the preamble sequence and is used to detect whether the joint transmission of the preamble sequence and the data information is successful.

2. The access method according to claim 1, wherein The channel configuration information includes the following parameters for indicating the time-domain resources and frequency-domain resources: The frequency-band position of the preamble sequence channel; The frequency-band position of the data information channel; The time-domain period of the preamble sequence channel and the data information channel; The time-domain start position of the preamble sequence channel and the data information channel; The time-domain duration length of the preamble sequence channel and the data information channel.

3. The access method according to claim 1 or 2, characterized in that The method further includes: Selecting the preamble sequence from a preamble sequence resource pool based on a preset selection rule, the preset selection rule including at least one of the following: random selection, determination based on user identity information, and determination based on data information.

4. The access method according to claim 1, characterized in that The transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

5. The access method according to claim 1, characterized in that, The method further includes: Determining a RA-RNTI based on the transmission position of the preamble sequence; Obtaining a first eRA-RNTI by extending the RA-RNTI in a preset extension manner; Wherein, the preset extension manner includes at least one of the following: extension based on bits in user identity information, extension based on bits in data information, and extension based on extension bits previously obtained from the network-side device.

6. The access method according to claim 5, characterized in that The first eRA-RNTI is obtained from the network-side device in advance.

7. The access method according to claim 5 or 6, characterized in that The method further includes: Receiving a feedback message sent by the network-side device, the feedback message explicitly or implicitly including a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network-side device based on the RA-RNTI in the preset extension manner or is specified by the network-side device; Verifying the feedback message based on the first eRA-RNTI and the second eRA-RNTI.

8. An access method, characterized in that Applied to a network-side device, the method includes: Sending configuration signaling, the configuration signaling including channel configuration information; the channel configuration information including time-domain resources and frequency-domain resources of a preamble sequence channel and a data information channel; wherein, the preamble sequence channel and the data information channel respectively occupy different frequency bands; Receiving a preamble sequence and data information sent by a user terminal, and obtaining the data information based on the transmission format determined by the preamble sequence and the data information channel; the transmission format determined by the preamble sequence is used to detect whether the joint transmission of the preamble sequence and the data information is successful.

9. The access method according to claim 8, wherein The channel configuration information includes the following parameters for indicating the time-domain resources and frequency-domain resources: The frequency-band position of the preamble sequence channel; The frequency-band position of the data information channel; The time-domain period of the preamble sequence channel and the data information channel; The time-domain starting position of the preamble sequence channel and the data information channel; The time-domain duration length of the preamble sequence channel and the data information channel.

10. The access method according to claim 8, wherein The transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

11. The access method according to claim 8, wherein The method further includes: Sending a feedback message to the user terminal, the feedback message explicitly or implicitly including a second eRA-RNTI; wherein, the second eRA-RNTI is obtained by the network-side device based on the RA-RNTI according to a preset expansion method or is specified by the network-side device, and the RA-RNTI is determined based on the sending position of the preamble sequence; Wherein, the preset expansion method includes at least one of the following: expanding based on bits in the user identity information, expanding based on bits in the data information, and expanding based on expansion bits pre-obtained from the network-side device.

12. The access method according to any one of claims 8-11, characterized in that, The channel configuration information further includes: Configuring multiple sets of parameters to indicate the time-domain resources and frequency-domain resources of the preamble sequence channel and the data information channel, each set of parameters includes different frequency bands, and each set of parameters is different from each other or partially different.

13. An access device, characterized in that, Including a memory, a transceiver, and a processor; The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to execute the computer program in the memory and implement the following steps: Receiving configuration signaling sent by a network-side device, the configuration signaling includes channel configuration information, and the channel configuration information includes the time-domain resources and frequency-domain resources of the preamble sequence channel and the data information channel; Wherein the preamble sequence channel and the data information channel respectively occupy different frequency bands; Sending a preamble sequence and data information according to the time-domain resources and frequency-domain resources; wherein, the transmission format of the data information is determined by the preamble sequence and is used to detect whether the joint transmission of the preamble sequence and the data information is successful.

14. The access device according to claim 13, characterized in that, The channel configuration information includes the following parameters to indicate the time-domain resources and frequency-domain resources: The frequency-band position of the preamble sequence channel; The frequency-band position of the data information channel; The time-domain period of the preamble sequence channel and the data information channel; The time-domain starting position of the preamble sequence channel and the data information channel; The time-domain duration length of the preamble sequence channel and the data information channel.

15. The access device according to claim 13 or 14, characterized in that, The step further includes: Selecting the preamble sequence from a preamble sequence resource pool based on a preset selection rule, and the preset selection rule includes at least one of the following: random selection, determination based on user identity information, and determination based on data information.

16. The access device according to claim 13, characterized in that, The transmission format includes any one or a combination of the following: spreading, checking, encoding, interleaving, scrambling, modulation, and resource mapping.

17. The access device according to claim 13, wherein The step further includes: Determining the RA-RNTI based on the sending position of the preamble sequence; Obtaining a first eRA-RNTI by expanding the RA-RNTI according to a preset expansion method; Among them, the preset expansion method includes at least one of the following: expanding based on bits in user identity information, expanding based on bits in data information, and expanding based on expansion bits obtained in advance from the network side device.

18. The access device according to claim 17, wherein The step further includes: The first eRA-RNTI is obtained in advance from the network side device.

19. The access device according to claim 17 or 18, characterized in that, The step further includes: Receiving a feedback message sent by the network side device, where the feedback message explicitly or implicitly includes a second eRA-RNTI; where the second eRA-RNTI is obtained by the network side device based on the RA-RNTI according to the preset expansion method or is specified by the network side device; Verifying the feedback message based on the first eRA-RNTI and the second eRA-RNTI.

20. An access device, characterized in that, Including a memory, a transceiver, and a processor; The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to execute the computer program in the memory and implement the following steps: Sending configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes the time domain resources and frequency domain resources of the preamble sequence channel and the data information channel; where the preamble sequence channel and the data information channel respectively occupy different frequency bands; Receiving a preamble sequence and data information sent by a user terminal, and obtaining the data information based on the transmission format determined by the preamble sequence and the data information channel; the transmission format determined by the preamble sequence is used to detect whether the joint transmission of the preamble sequence and the data information is successful.

21. The access device according to claim 20, wherein The channel configuration information includes the following parameters for indicating the time domain resources and frequency domain resources: The frequency band position of the preamble sequence channel; The frequency band position of the data information channel; The time domain period of the preamble sequence channel and the data information channel; The time domain start position of the preamble sequence channel and the data information channel; The time domain duration length of the preamble sequence channel and the data information channel.

22. The access device according to claim 20, characterized in that, The transmission format includes any one or a combination of the following: spreading, checking, coding, interleaving, scrambling, modulation, and resource mapping.

23. The access device according to claim 20, wherein The step further includes: Sending a feedback message to the user terminal, where the feedback message explicitly or implicitly includes a second eRA-RNTI; where the second eRA-RNTI is obtained by the access device based on the RA-RNTI according to the preset expansion method or is specified by the access device, and the RA-RNTI is determined based on the sending position of the preamble sequence; Among them, the preset expansion method includes at least one of the following: expanding based on bits in user identity information, expanding based on bits in data information, and expanding based on expansion bits obtained in advance from the access device.

24. The access device according to any one of claims 20-23, characterized in that, The channel configuration information further includes: Configuring multiple sets of parameters for indicating the time domain resources and frequency domain resources of the preamble sequence channel and the data information channel, and each set of parameters includes different frequency bands, and each set of parameters is different from each other or partially different.

25. An access device, characterized in that, Applied to a user terminal, the device includes: A receiving module, configured to receive configuration signaling sent by a network-side device, where the configuration signaling includes channel configuration information, and the channel configuration information includes time-domain resources and frequency-domain resources of a preamble sequence channel and a data information channel; wherein the preamble sequence channel and the data information channel respectively occupy different frequency bands; A transmitting module, configured to transmit a preamble sequence and data information according to the time-domain resources and the frequency-domain resources; wherein a transmission format of the data information is determined by the preamble sequence and is used to detect whether the joint transmission of the preamble sequence and the data information is successful.

26. An access device, characterized in that, Applied to a network-side device, the apparatus includes: A transmitting module, configured to transmit configuration signaling, where the configuration signaling includes channel configuration information; the channel configuration information includes time-domain resources and frequency-domain resources of a preamble sequence channel and a data information channel; wherein the preamble sequence channel and the data information channel respectively occupy different frequency bands; A receiving and obtaining module, configured to receive a preamble sequence and data information sent by a user terminal, and obtain the data information based on a transmission format determined by the preamble sequence and the data information channel; the transmission format determined by the preamble sequence is used to detect whether the joint transmission of the preamble sequence and the data information is successful.

27. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the access method according to any one of claims 1 to 7, or execute the access method according to any one of claims 8 to 12.

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