Random access methods, random access devices, related equipment, and storage media

Abstract

This application discloses a random access method, a random access device, a terminal, a network device, and a storage medium, wherein the method comprises a terminal acquiring first information, the first information comprising at least one of a first resource set and / or a second resource set and a number of preamble transmissions, the first resource set being used by the terminal to transmit at least two preambles on at least two occasions, the at least two preambles transmitted on at least two occasions being associated with one terminal, and the second resource set being used by the terminal to transmit at least two preambles on one occasion, the at least two preambles transmitted on one occasion being associated with one terminal.

Description

[Technical Field]

[0001] (Cross-reference to related applications) This application is filed based on the Chinese patent application filed with the China National Patent Office on 31 October 2022, application number 202211350497.0, claiming priority from said Chinese patent application, and all contents of said Chinese patent application are incorporated herein by reference. This application relates to the field of wireless communication, and more particularly to random access methods, random access devices, related equipment, and storage media. [Background technology]

[0002] The terminal obtains downlink synchronization by receiving and measuring the synchronous signal block (SSB), and performs uplink random access by transmitting a preamble on the uplink random access channel opportunity (RO, RACH occasion) corresponding to the SSB. However, in related technologies, no effective solutions have yet been proposed for how to enhance the random access process, improve the success rate of terminal access, and reduce access latency. [Overview of the project]

[0003] To solve the problems of related technologies, embodiments of the present application provide a random access method, a random access device, related equipment, and a storage medium. The technical solution of the present embodiment is implemented as follows. Embodiments of the present application provide a random access method applicable to a terminal, the method being: This includes obtaining first information, and the first information described above is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with one terminal, and This indicates at least one of the preamble transmission counts. In the above plan, obtaining the first information means This includes receiving first information transmitted from the network side. In the above plan, the random access method is The system further includes receiving second information transmitted from the network side, the second information including at least one timing advance (TA) piece of information. In the above scheme, if the first information indicates at least a first resource set, then the at least two preambles transmitted on the at least two occasions are the same or different. In the above plan, if the first information indicates at least a first resource set and the number of preamble transmissions, and at least two preambles transmitted are the same, the number of preamble transmissions shall not exceed the indicated number of preamble transmissions. or If the first information indicates at least a first resource set and the number of preamble transmissions, then when at least two preambles transmitted are different, the number of transmissions for each preamble will not exceed the indicated number of preamble transmissions. In the above scheme, if the first information indicates at least a first resource set, then the at least two opportunities are consecutive. In the above scheme, if the first information indicates at least a first resource set and the at least two transmitted preambles are different, then the at least two preambles transmitted on at least two occasions are related. In the above scheme, if the first information indicates at least a first set of resources, the time-domain resources or frequency-domain resources of the at least two opportunities are different, or the time-domain resources of the at least two opportunities are the same and the frequency-domain resources are different. Here, the resources of the at least two opportunities are related. In the above scheme, if the first information indicates at least a second set of resources, then at least two preambles transmitted on one occasion are related. In the above plan, select the first preamble from the second resource set, Based on the rules, select the second preamble. In the above-described scheme, if the first information indicates the second resource set and the number of preamble transmissions, the number of transmissions for each preamble does not exceed the indicated number of preamble transmissions. In the above plan, the opportunity has a correspondence with at least the identifier of the signal used for synchronization. Embodiments of the present application further provide a random access method applicable to network equipment, the method being: This includes transmitting first information to a terminal, wherein the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with only one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with only one terminal, and This indicates at least one of the preamble transmission counts. In the above plan, the random access method is The method further includes transmitting second information to the terminal, wherein the second information includes at least one piece of TA information. In the above scheme, if the first information indicates at least a first resource set, then at least two preambles are received on at least two occasions, and the at least two preambles received on at least two occasions are the same or different. In the above scheme, if the first information indicates at least a first resource set, then the at least two opportunities are consecutive. In the above scheme, if the first information indicates at least a first set of resources, then at least two preambles are received on at least two occasions, and the at least two different preambles received on at least two occasions are related. In the above scheme, if the first information indicates at least a first set of resources, the time-domain resources or frequency-domain resources of the at least two opportunities are different, or the time-domain resources of the at least two opportunities are the same and the frequency-domain resources are different. Here, the resources of the at least two opportunities are related. In the above scheme, if the first information indicates at least a second set of resources, then at least two preambles are received in one instance, and the at least two preambles received in one instance are related. In the above plan, it is determined that at least two pieces of TA information must be adopted based on at least two received preambles, with each piece of TA information corresponding to the uplink transmission of one beam. In the above plan, the opportunity has a correspondence with at least the identifier of the signal used for synchronization. Embodiments of the present application further provide a random access device applicable to a terminal, the device being The unit comprises an acquisition unit configured to acquire first information, wherein the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with one terminal, and This indicates at least one of the preamble transmission counts. Embodiments of the present application further provide a random access device applicable to network equipment, the device being The system includes a transmission unit configured to transmit first information to a terminal, wherein the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with only one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with only one terminal, and This indicates at least one of the preamble transmission counts. The embodiment of the present application further provides a terminal comprising a first processor and a first communication interface, wherein, The first processor is configured to acquire first information, and the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with one terminal, and This indicates at least one of the preamble transmission counts. The embodiment of the present application further provides a network device comprising a second processor and a second communication interface, wherein, The second communication interface is configured to transmit first information to the terminal, and the first information is, A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with only one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with only one terminal, and This indicates at least one of the preamble transmission counts. Embodiments of the present invention further provide a terminal comprising a first processor and a first memory configured to store a computer program executable on the processor, Here, the first processor is configured to execute the steps of any of the above-described methods on the terminal side by executing the computer program. An embodiment of the present application further provides a network device including a second processor and a second memory configured to store a computer program executable on the processor. Here, the second processor is configured to execute steps of any of the above methods on the network device side by executing the computer program. An embodiment of the present application further provides a storage medium storing a computer program, where the computer program causes a processor to execute steps of any of the above methods on the terminal side or steps of any of the above methods on the network device side.

Advantages of the Invention

[0004] Embodiments of the present application provide a random access method, a random access device, related devices, and a storage medium. In the method provided by the embodiments of the present application, a terminal acquires first information, where the first information indicates at least one of a first resource set and / or a second resource set, and the number of preamble transmission times. The first resource set is used for the terminal to transmit at least two preambles at least two times, and the at least two preambles transmitted at the at least two times are associated with one terminal. The second resource set is used for the terminal to transmit at least two preambles at one time, and the at least two preambles transmitted at the one time are associated with one terminal. According to the solution provided by the embodiments of the present application, the terminal acquires indication information, and the network side can know, based on the indication information, that a plurality of preambles transmitted by the terminal are from the same user. Thus, since one terminal transmits a plurality of preambles, the coverage capability of the PRACH is improved, that is, the random access capability of the PRACH is improved, the access success rate of the terminal is improved, and the access delay is shortened.

Brief Description of the Drawings

[0005] [Figure 1] It is a schematic diagram of a random access flow. [Figure 2] It is a schematic diagram of a communication method between a multi-antenna panel terminal and a base station. [Figure 3] It is a flowchart of a random access method in an embodiment of the present application. [Figure 4] It is a schematic diagram of continuous ROs in an embodiment of the present application. [Figure 5] It is a schematic diagram of another continuous RO in an embodiment of the present application. [Figure 6] It is a flowchart of another random access method in an embodiment of the present application. [Figure 7] It is a schematic structural diagram of a random access device in an embodiment of the present application. [Figure 8] It is a schematic structural diagram of another random access device in an embodiment of the present application. [Figure 9] It is a schematic structural diagram of a terminal in an embodiment of the present application. [Figure 10] It is a schematic structural diagram of a network device in an embodiment of the present application. [Figure 11] It is a schematic structural diagram of a random access system in an embodiment of the present application.

Embodiments for Carrying Out the Invention

[0006] Hereinafter, the present application will be described in more detail with reference to the drawings and embodiments. As shown in Figure 1, the base station transmits an SSB (Synchronization Signal Block) to the terminal to perform downlink synchronization. The terminal obtains downlink synchronization by measuring the SSB and transmits a preamble on the RO corresponding to the SSB to perform random access. Here, there is a correspondence between the RO and the SSB index (index), so the base station receives the preamble on the RO corresponding to a given SSB using a beam in the same direction as the SSB, thereby ensuring that it can correctly receive the preamble transmitted uplink by the terminal. Here, transmitting a preamble can be understood as transmitting a physical random access channel (PRACH), and conversely, transmitting a preamble can be understood as receiving a PRACH. Furthermore, related technologies propose enhanced PRACH coverage, including, for example, multiple transmissions of PRACH in the same beam (which can also be understood as the same direction), and multiple transmissions of PRACH in multiple directions (which can also be understood as multiple beams). On the other hand, to address the transmission and reception of terminals in millimeter-wave or higher frequency bands, as shown in Figure 2, the terminal is equipped with multiple antenna panels for reception and transmission. The introduction of multiple panels can effectively improve the downlink signal reception capability and uplink signal transmission capability of the terminal. In particular, in some industrial scenarios where there are no limitations on the volume of the terminal, it is possible to obtain higher transmission rates or improve transmission reliability by placing more panels on the terminal. However, related technologies only propose the basic idea of ​​sending PRACH multiple times, and there is still no effective solution for how to actually implement sending PRACH multiple times. Based on this, in the various embodiments of the present application, the terminal acquires instruction information, and the network side (specifically, the base station (which can also be understood as a transmitting / receiving node (TRP, Transmit / Receive Point))) can know, based on the instruction information, that multiple preambles transmitted by the terminal are from the same user. Thus, one terminal transmits multiple preambles, specifically, one terminal transmits multiple preambles in a single random access process, which improves the coverage capability of PRACH, increases the success rate of terminal access, and reduces access delay. The embodiments of this application provide a random access method (which can also be understood as a random access information processing method) applicable to a terminal, and as shown in Figure 3, the method may include the following steps. In step 301, first information is obtained, and the first information is, A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with one terminal, and This indicates at least one of the preamble transmission counts. In actual applications, the aforementioned terminal is referred to as a user device (UE), terminal device, or user. In actual applications, the first information may be predefined, and in this way, the terminal obtains the predefined first information. Alternatively, the network side may configure (which can also be understood as predefined) the first information, and the terminal obtains the first information by receiving the first information transmitted from the network side. Here, the network side may place (or instruct the terminal to place) the first information on the terminal using a broadcast message or a system message, for example, by using a system message block 1 (SIB1), and the embodiments of this application do not limit the specific process by which the network side transmits the first information. Since the first resource set includes at least one first resource, the first information indicating the first resource set can be understood as the first information indicating at least one first resource, and the first resource set being used to cause the terminal to send at least two preambles on at least two occasions can be understood as the at least one first resource being used to cause the terminal to send at least two preambles on at least two occasions, specifically, the at least one first resource being used by the terminal to send at least two preambles on at least two occasions in a single random access process. Accordingly, since the second resource set includes at least one second resource, the fact that the first information indicates the second resource set can be understood as the first information indicating at least one second resource, and the fact that the second resource set is used to cause the terminal to send at least two preambles in one opportunity can be understood as the at least one second resource being used to cause the terminal to send at least two preambles in one opportunity, specifically, the at least one second resource being used by the terminal to send at least two preambles in one opportunity during a single random access process. In practical applications, the resources included in the resource set can be understood as random access resources, and include, for example, at least one of a preamble, a time-frequency resource for transmitting the preamble (also called a time-frequency resource for transmitting PRACH), and an RO. In other words, the resources included in the resource set may include opportunities and / or preambles. The first and second resource sets can be understood as a designated resource set, so that the network side can recognize that multiple received preambles originated from a single terminal. Here, if the resource set includes only opportunities, the terminal can send a preamble using the opportunities included in the resource set, thereby enabling the network to recognize that multiple received preambles originated from a single terminal. In this case, the terminal can select a preamble as needed. If the resource set includes only preambles, the terminal can send a preamble included in the resource set, thereby enabling the network to recognize that multiple received preambles originated from a single terminal. In this case, the terminal can decide which opportunity to preamble as needed. Of course, if the resource set includes both opportunities and preambles, the terminal can send a preamble included in the resource set using the opportunities included in the resource set. Here, the specific implementation process of how the terminal selects a preamble as needed and how it decides which opportunity to send a preamble as needed is not limited, as long as the network can recognize that multiple received preambles originated from a single terminal. In actual applications, the aforementioned opportunity may include a transmission opportunity, a random access opportunity, a PRACH occasion (PRACH opportunity), an RO or time unit (also called a time resource, e.g., a time slot), or a resource for transmitting or receiving a PRACH (which can also be understood as a preamble) (i.e., a time-frequency resource related to random access), and the embodiments of this application are not limited to these, as long as they can realize the function. The preamble transmission count refers to the number of times each preamble is transmitted. Specifically, it may refer to the number of times each preamble is transmitted in a single random access process, and can be understood as the maximum number of transmissions. The preamble transmission count can be understood as the maximum number of preamble transmissions supported by the network. Here, in the related technology, a random access process includes the transmission of one preamble (or one PRACH) and a random access response. In a single random access process, one terminal transmits one preamble, and only after the random access process has failed (meaning the terminal has not received a random access response) does the terminal transmit a second preamble. In this case, the network considers the two preambles transmitted by one terminal to be from two different terminals. On the other hand, in the embodiments of the present application, one terminal transmits at least two preambles, specifically, multiple preambles in a single random access process, and from the network's perspective, after receiving one or more preambles transmitted by the terminal, it determines that the preambles transmitted by the terminal have been correctly received, i.e., the transmission of multiple preambles is considered to be a random access from one terminal. To make it clear, the aforementioned single random access process is also called a single random access request or a single random access attempt (which can be expressed as an attempt in English), and the embodiments of this application are not limited to this. In actual applications, the terminal can initiate a random access process after acquiring the first information. Based on this, in one embodiment, the method may further include the following steps, as shown in Figure 3. In step 302, the random access process is executed. Here, the terminal uses the first information to perform a random access process. That is, the terminal performs a random access process using the corresponding resources within the resources indicated by the first information. In the random access process, the terminal receives second information transmitted from the network side, and the second information includes at least one TA information. Here, in a practical application, the network side can recognize, based on the first information, that at least two received preambles are from one terminal. Furthermore, the network side can recognize whether the terminal has at least two panels and, based on the received preambles, determine whether there is a propagation delay (transmission delay, propagation time difference, or propagation delay offset) in the transmission of at least two panels. If there is a propagation delay, at least two pieces of TA information can be sent to the terminal; if there is no propagation delay, one piece of TA information can be sent to the terminal. Here, in a practical application, if the terminal has multiple panels, the terminal can recognize whether there is a propagation delay in the transmission of at least two panels by measuring at least one synchronization signal transmitted from the network side. If there is a propagation delay, the terminal may send a request to the network to configure or instruct the network to configure at least two TA information (i.e., at least two panels transmit different preambles), and the network, after receiving the request from the terminal, may recognize that there is a propagation delay in the transmission of at least two panels and thereby transmit at least two TA information to the terminal. If there is no propagation delay, the terminal may send a request to the network to configure or instruct the network to configure one TA information, and the network, after receiving the request from the terminal, may recognize that there is no propagation delay in the transmission of at least two panels and thereby transmit one TA information to the terminal. Of course, if there is no propagation delay, the terminal may not send a request to the network and, by default, assume that there is no propagation delay in the transmission of at least two panels. In actual applications, each TA information may include the TA value, the effective time of the TA value, etc., and the embodiments of this application are not limited to these. In embodiments of the present application, the apparatus is associated with an identifier for at least the signal used for synchronization. Here, in a practical application, the signal used for at least synchronization may include SSB and / or channel status information reference signals (CSI-RS). The identifier may include, and the embodiments of the present application are not limited to, an index for the signal. In one embodiment, if the first information indicates at least a first resource set, the at least two preambles transmitted on the at least two occasions may be the same or different, but in any case, when the terminal transmits at least two preambles using the resources of the first resource set, the network side considers the at least two preambles transmitted on the at least two occasions to be preambles from the same terminal. In actual applications, the terminal can transmit the at least two preambles using one panel as needed, and of course, if the terminal has at least two panels, it can transmit the at least two preambles using at least two panels. When transmitting at least two identical preambles using at least two panels, for example, when the terminal determines, based on measurements of at least two signals used for synchronization received by the terminal, that there is no propagation delay in the transmission of at least two panels, additional energy gains and spatial diversity gains of the beam can be obtained by transmitting at least two identical preambles using at least two panels (because the preamble is transmitted from at least two panels, i.e., from different directions, the probability of shielding is reduced). When transmitting at least two different preambles using at least two panels, for example, when the terminal determines, based on measurements of at least two signals used for synchronization received, that there is a propagation delay in the transmission of at least two panels, transmitting at least two different preambles using at least two panels can provide a power gain (the network equipment can integrate the results associated with at least two preambles to improve the detection probability), a spatial diversity gain in different beam directions, and an increased chance of detection compared to a typical terminal. Here, if the terminal transmits at least two identical preambles, the number of times the preamble is transmitted does not exceed the number of preamble transmissions indicated by the first information. For example, assuming the terminal adopts preamble1 and the first information indicates that the number of transmissions of preamble1 is M, if the terminal transmits preamble1 L times in a single access process, then L must be less than or equal to M. Here, both M and L are integers greater than zero. If the terminal transmits at least two different preambles, the number of transmissions of each preamble (which can also be understood as the number of repeated transmissions) shall not exceed the indicated number of preamble transmissions. For example, assuming that the terminal employs preamble1 and preamble2, and the first information indicates that the number of transmissions of both preamble1 and preamble2 is M, the number of times the terminal transmits preamble1 shall not exceed M, and the number of times it transmits preamble2 shall not exceed M. In practical applications, if the terminal transmits at least two different preambles, the at least two preambles transmitted on at least two occasions may be related, thereby reducing the difficulty of detecting the preambles on the network side. Here, the relatedness may indicate that the at least two different preambles originate from the same terminal. Here, when selecting a preamble, the terminal first selects one preamble from the first resource set, and then, based on the rules, selects another preamble, the selected other preamble may or may not be a preamble within the first resource set. Based on this, in one embodiment, the terminal selects a third preamble from the first resource set, and based on the rule, selects a fourth preamble, the fourth preamble may be a preamble in the first resource set, that is, the terminal selects a fourth preamble from the first resource set based on the rule, the fourth preamble may not be a preamble in the first resource set. Exemplarily, the rule is the k-th sequence (i.e., the k-th preamble) P(k) = P1 + N among a plurality of preambles. k , or P(k)=P(k-1)+N' kThis may also be the case. Here, P1 represents the first sequence number or sequence index among the multiple preambles, i.e., the third preamble, and N k represents the offset between the k-th sequence and the first sequence, P(k-1) represents the (k-1)th sequence or sequence index among multiple preambles, and N' represents the offset between the k-th sequence and the first sequence. k This represents the offset between the k-th sequence and the (k-1)-th sequence. k and N' k By selecting this, each k sequence can be made to have better discorrelation, which on the one hand reduces the correlation between the k sequences, reduces interference between sequences and improves the detection probability, and on the other hand, it is possible to avoid the difficulty in distinguishing signals from multiple sequences due to channel influence. In actual applications, the aforementioned rules may be predefined or transmitted to the terminal from the network side first, and the embodiments of this application are not limited to these. In practical applications, at least two of the aforementioned opportunities are consecutive, thereby reducing the difficulty of detecting the preamble. Here, these consecutive opportunities may correspond to the same signal identifier used for at least synchronization, or to different signal identifiers used for at least synchronization. Here, in practical applications, whether these consecutive opportunities correspond to the same signal identifier used for at least synchronization or to different signal identifiers used for at least synchronization depends on the PRACH transmission method supported by the network, i.e., the beams (transmission direction, or direction, or transmission configuration, or spatial filtering) for PRACH transmission supported by the network. Specifically, if the network supports multiple beam transmissions, these consecutive opportunities may correspond to different signal identifiers used for at least synchronization, and if the network supports single-beam (i.e., identical beam) transmissions, these consecutive opportunities may correspond to the same signal identifier used for at least synchronization. Exemplarily, assuming the network supports transmission on Q beams (where Q is an integer greater than or equal to 2), for example, assuming it supports transmission on four beams, the base station may perform integration on Q consecutive ROs, each RO corresponding to a different SSB index. As shown in Figure 4, the network can receive uplink PRACH (i.e., preamble) with four ROs, each associated with a different SSB index, and the network can, if necessary, integrate (also called joint reception or joint detection) the PRACH received by, for example, four ROs m+1 to m+4. Alternatively, the PRACH can be integrated with four ROs m+2 to m+5. In other words, the network can integrate the PRACH with RO m and the subsequent Q-1 ROs and consider it as multiple transmissions from the same user.If the network side supports transmission on the same beam, that is, if consecutive opportunities correspond to at least one signal identifier used for synchronization, then, as shown in Figure 5, four ROs correspond to one SSB index, and the network side can integrate the PRACH received by the four ROs (m+1, m+5, m+9, m+13) corresponding to SSB#1 and consider them as multiple transmissions from the same user. In other words, the at least two consecutive opportunities include an opportunity associated with a certain SSB index, an opportunity associated with the next same SSB index, and a subsequent opportunity associated with the same SSB index, i.e., these opportunities constitute at least two opportunities. In actual applications, the network can instruct the terminal to use a PRACH transmission method supported by the network, and the terminal uses the PRACH transmission method instructed by the network to transmit at least two preambles on at least two occasions. In one embodiment, if the first information represents at least a first set of resources, the time-domain resources of the at least two opportunities are different, or the time-domain resources of the at least two opportunities are the same and the frequency-domain resources are different, where the frequency-domain resources of the at least two opportunities are related. Specifically, if the at least two opportunities operate only on different time-domain resources or only on different frequency-domain resources, the terminal can transmit at least two identical or different preambles. Here, if the at least two opportunities operate only on different time-domain resources, the time-domain resources of the at least two opportunities are related, and if the at least two opportunities operate only on different frequency-domain resources, the frequency-domain resources of the at least two opportunities are related, so that the network can recognize that these preambles are from the same terminal. If at least two of the aforementioned opportunities reside on the same time resource (for example, the at least two opportunities reside on one time instance) and are distributed across multiple different frequency domain resources, that is, if the number of frequency division multiplexing (FDM) PRACH transmission opportunities in one time instance (the number of resources that can be frequency multiplexed on the same time resource or at the same time, also called the number of random access transmission machines) is not equal, then the network can configure multiple different opportunity resources in the frequency domain to be related, and at least two identical preambles can be transmitted on these related opportunity resources, thereby enabling the network to recognize that these preambles originate from the same terminal, and then use the detection results of these preambles to perform collaborative processing and improve the coverage capability of random access (i.e., PRACH). Here, transmission of the same sequence on multiple opportunities is performed on the uplink random access of a multi-panel terminal and on other terminals. The probability of competition with the end can be reduced. On different opportunity resources with related relationships, at least two different preambles can also be transmitted, and different preambles can be transmitted on different opportunities. For example, if there are two ROs, RO1 and RO2, RO1 is distributed to a first frequency domain resource and RO2 is distributed to a second frequency domain resource, and the two preambles are P1 and P2 respectively, then P1 can be transmitted on the first frequency domain resource and P2 can be transmitted on the second frequency domain resource. By selecting different preamble sequences, changes in sequence correlation due to factors such as the channel can be reduced, thereby reducing cross-correlation performance with other sequences and reducing the probability of false positives or detection failures by utilizing the diversity gain brought about by different sequences. Here, for multi-panel terminals, the frequency domain resource locations of the equipment are as follows:

number

Claims

1. A random access method applied to a terminal, This includes obtaining first information, and the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with one terminal, and A random access method that specifies at least one of the preamble transmission counts.

2. Obtaining the aforementioned first information means This includes receiving first information transmitted from the network side. The random access method according to claim 1.

3. The aforementioned random access method is: The process further includes receiving second information transmitted from the network side, wherein the second information includes at least one timing advance (TA) piece of information. The random access method according to claim 1.

4. If the first information indicates at least a first resource set, then the at least two preambles transmitted on the at least two occasions are the same or different. The random access method according to claim 1.

5. If the first information indicates at least a first resource set and the number of preamble transmissions, and at least two preambles transmitted are the same, the number of preamble transmissions shall not exceed the indicated number of preamble transmissions. or If the first information indicates at least a first resource set and the number of preamble transmissions, and at least two preambles transmitted are different, the number of transmissions for each preamble shall not exceed the indicated number of preamble transmissions. The random access method according to claim 1.

6. If the first information indicates at least a first resource set, then the at least two opportunities are consecutive. The random access method according to claim 1.

7. If the first information indicates at least a first resource set and the at least two preambles transmitted are different, then the at least two preambles transmitted on at least two occasions are related. The random access method according to claim 1.

8. If the first information indicates at least a first set of resources, then the time-domain resources or frequency-domain resources of the at least two opportunities are different, or the time-domain resources of the at least two opportunities are the same and the frequency-domain resources are different, and the resources of the at least two opportunities are related. The random access method according to claim 1.

9. If the first information indicates at least a second set of resources, then at least two preambles transmitted on one occasion have a related relationship. The random access method according to claim 1.

10. Selecting the first preamble from the second resource set, This includes selecting a second preamble based on the rules, The random access method according to claim 9.

11. If the first information indicates a second resource set and the number of preamble transmissions, the number of transmissions for each preamble shall not exceed the indicated number of preamble transmissions. The random access method according to claim 1.

12. The aforementioned opportunity has at least a correspondence with the identifier of the signal used for synchronization. The random access method according to any one of claims 1 to 11.

13. A random access method applicable to network equipment, This includes transmitting first information to a terminal, wherein the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with only one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with only one terminal, and A random access method that specifies at least one of the preamble transmission counts.

14. The aforementioned random access method is: The method further includes transmitting second information to the terminal, wherein the second information includes at least one piece of TA information. The random access method according to claim 13.

15. If the first information indicates at least a first resource set, then at least two preambles are received on at least two occasions, and the at least two preambles received on at least two occasions are the same or different. The random access method according to claim 13.

16. If the first information indicates at least a first resource set, then the at least two opportunities are consecutive. The random access method according to claim 13.

17. If the first information indicates at least a first set of resources, then at least two preambles are received on at least two occasions, and the at least two different preambles received on at least two occasions are related. The random access method according to claim 13.

18. If the first information indicates at least a first set of resources, then the time-domain resources or frequency-domain resources of the at least two opportunities are different, or the time-domain resources of the at least two opportunities are the same and the frequency-domain resources are different, and the resources of the at least two opportunities are related. The random access method according to claim 13.

19. If the first information indicates at least a second set of resources, then at least two preambles are received on one occasion, and the at least two preambles received on one occasion are related. The random access method according to claim 13.

20. Based on the two preambles received, it is determined that at least two TA pieces of information must be adopted, and each TA piece of information corresponds to the uplink transmission of one beam. The random access method according to claim 19.

21. The aforementioned opportunity has at least a correspondence with the identifier of the signal used for synchronization. A random access method according to any one of claims 13 to 20.

22. A random access device applied to a terminal, The unit comprises an acquisition unit configured to acquire first information, wherein the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with one terminal, and A random access device that indicates at least one of the preamble transmission counts.

23. A random access device applicable to network equipment, A transmission unit configured to transmit first information to a terminal, wherein the first information is: A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with only one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with only one terminal, and A random access device that indicates at least one of the preamble transmission counts.

24. A terminal comprising a first processor and a first communication interface, The first processor is configured to acquire first information, and the first information is A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with one terminal, and A terminal that indicates at least one of the preamble transmission counts.

25. A network device comprising a second processor and a second communication interface, The second communication interface is configured to transmit first information to the terminal, and the first information is, A first resource set and / or a second resource set, wherein the first resource set is used by the terminal to transmit at least two preambles on at least two occasions, and the at least two preambles transmitted on at least two occasions are associated with only one terminal, and the second resource set is used by the terminal to transmit at least two preambles on one occasion, and the at least two preambles transmitted on one occasion are associated with only one terminal, and A network device that indicates at least one of the preamble transmission counts.

26. A terminal comprising a first processor and a first memory configured to store a computer program executable on the processor, A terminal wherein the first processor is configured to execute the steps of the random access method described in any one of claims 1 to 12 by executing the computer program.

27. A network device comprising a second processor and a second memory configured to store a computer program executable on the processor, Network device wherein the second processor is configured to execute the steps of the random access method described in any one of claims 13 to 21 by executing the computer program.

28. A storage medium in which a computer program is stored, wherein the computer program causes a processor to perform the steps of the random access method described in any one of claims 1 to 12, or the steps of the random access method described in any one of claims 13 to 21.

Images