Random access instruction method, device, and storage medium

Abstract

A random access instruction method, device, and storage medium relate to the field of communication technology. The method comprises the steps of: a service base station transmitting a random access instruction signaling, wherein the random access instruction signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to a terminal; and a terminal receiving the random access instruction signaling and determining at least one of a target antenna panel and a target beam used to transmit a random access preamble according to the random access instruction signaling. An embodiment of the present invention transmits a random access instruction signaling to a terminal through a service base station so that the terminal determines at least one of a target antenna panel and a target beam used to transmit a random access preamble accordingly; thereby, when the terminal has a plurality of antenna panels, the terminal can accurately determine which antenna panel to use to initiate random access, which is advantageous for improving the accuracy and success rate of random access and reducing random access delay.

Description

Technology Field

[0001] Embodiments of the present invention relate to the field of communication technology, and in particular to a random access indication method, device, and storage medium. Background Technology

[0002] The terminal must initiate random access to the base station to establish a wireless connection with the base station.

[0003] In the conventional method, a terminal typically has only one antenna panel, and the terminal initiates random access to a base station through said antenna panel. In a 5G NR (New Radio) system, to improve spatial diversity gain, the base station and the terminal may each be equipped with multiple antenna panels. Multiple antenna panels of a base station may belong to the same TRP (Transmitter Receiver Point) or may belong to multiple different TRPs.

[0004] Currently, there is no complete solution yet for how to initiate random access to a base station in a situation where the terminal is equipped with multiple antenna panels.

[0005] Embodiments of the present invention provide a random access indication method, an apparatus, and a storage medium. The technical means are as follows.

[0006] According to a first aspect of an embodiment of the present invention, a random access indication method is provided, and the method is,

[0007] The service base station includes the step of transmitting a random access instruction signaling, wherein the random access instruction signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to a terminal.

[0008] Optionally, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0009] Optionally, the above method,

[0010] The service base station receives a Radio Resource Management (RRM) measurement report transmitted from the terminal - the RRM measurement report includes a measurement report of at least one adjacent cell - ;

[0011] The step of the service base station selecting the target cell from the at least one adjacent cell;

[0012] The step of the service base station transmitting a handover request signaling to the target base station to which the target cell belongs - the handover request signaling includes a measurement report of the target cell - ; and

[0013] The above service base station receives a handover response signaling transmitted from the target base station - the handover response signaling includes at least one indication information among the target antenna panel and the target beam - ; further includes.

[0014] Optionally, the measurement report of the adjacent cell includes an identifier of the adjacent cell, a measurement value of the adjacent cell, and measurement target information, wherein the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell.

[0015] Optionally, the above measurement target information,

[0016] Identifier of the receiving antenna panel and / or identifier of the receiving beam;

[0017] or,

[0018] Identifier of the receiving antenna panel and / or a first reference signal identifier used to indicate the receiving beam;

[0019] or,

[0020] A first reference signal group identifier used to indicate the receiving antenna panel and / or a first reference signal identifier used to indicate the receiving beam;

[0021] or,

[0022] It includes a first reference signal identifier used to indicate the receiving antenna panel and / or the receiving beam.

[0023] Optionally, the handover request signaling further includes configuration information of an uplink reference signal used by the terminal to measure the uplink.

[0024] Optionally, the above method,

[0025] The step of the service base station receiving candidate panel information transmitted from the terminal - the candidate panel information indicates at least one candidate antenna panel used for random access - ; and

[0026] The above service base station further includes the step of transmitting the above candidate panel information to the above target base station;

[0027] The target antenna panel is selected from the at least one candidate antenna panel.

[0028] Optionally, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0029] Optionally, the above method,

[0030] The above service base station further includes the step of receiving a wireless link failure notice or a beam failure notice transmitted from the terminal, and

[0031] The above wireless link failure notification is used to notify the service base station of the base station antenna panel where a wireless link failure has occurred, and the above beam failure notification is used to notify the service base station of the base station antenna panel where a beam failure has occurred.

[0032] Optionally, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0033] Optionally, the above method,

[0034] The step of the service base station receiving an adjacent cell measurement report transmitted from the terminal - the adjacent cell measurement report includes a measurement report of at least one adjacent cell - ;

[0035] The above service base station further includes the step of selecting the target secondary cell from the at least one adjacent cell.

[0036] Optionally, the random access indication signaling is,

[0037] Identifier of the target antenna panel and / or identifier of the target beam;

[0038] or,

[0039] Identifier of the target antenna panel and / or a second reference signal identifier used to indicate the target beam;

[0040] or,

[0041] A second reference signal group identifier used to indicate the target antenna panel and / or a second reference signal identifier used to indicate the target beam;

[0042] or,

[0043] It includes a second reference signal identifier used to indicate the target antenna panel and / or the target beam.

[0044] Optionally, the random access instruction signaling further includes instruction information of an antenna panel and / or beam used to monitor the Random Access Response (RAR) after the terminal transmits the random access preamble.

[0045] According to a second aspect of an embodiment of the present invention, a random access indication method is provided, and the method is,

[0046] A step in which the terminal receives a random access instruction signaling;

[0047] The above terminal determines at least one of a target antenna panel and a target beam used to transmit a random access preamble according to the random access instruction signaling; the method includes.

[0048] Optionally, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0049] Optionally, the above method,

[0050] The above terminal further includes the step of transmitting an RRM measurement report to a service base station, wherein the RRM measurement report includes a measurement report of at least one adjacent cell, and

[0051] The measurement report of the adjacent cell includes an identifier of the adjacent cell, a measurement value of the adjacent cell, and measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell.

[0052] Optionally, the above method,

[0053] The above terminal further includes the step of transmitting candidate panel information to the service base station, wherein the candidate panel information indicates at least one candidate antenna panel used for random access, and

[0054] The target antenna panel is selected from the at least one candidate antenna panel.

[0055] Optionally, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0056] Optionally, the above method,

[0057] The above terminal further includes the step of transmitting a wireless link failure notification or a beam failure notification to a service base station, and

[0058] The above wireless link failure notification is used to notify the service base station of the base station antenna panel where a wireless link failure has occurred, and the above beam failure notification is used to notify the service base station of the base station antenna panel where a beam failure has occurred.

[0059] Optionally, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0060] Optionally, the above method,

[0061] The above terminal further includes the step of transmitting an adjacent cell measurement report to a service base station, wherein the adjacent cell measurement report includes a measurement report of at least one adjacent cell.

[0062] The above target secondary cell is selected from at least one adjacent cell.

[0063] According to a third aspect of an embodiment of the present invention, a random access indication device applied to a service base station is provided, and said device,

[0064] It includes a signaling transmission module configured to transmit a random access signaling, wherein the random access signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to a terminal.

[0065] Optionally, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0066] Optionally, the device,

[0067] A measurement report receiving module configured to receive an RRM measurement report transmitted from the above terminal - the RRM measurement report includes a measurement report of at least one adjacent cell - ;

[0068] A target cell selection module configured to select the target cell from at least one adjacent cell;

[0069] A switching request transmission module configured to transmit a handover request signaling to a target base station to which the above target cell belongs - the handover request signaling includes a measurement report of the above target cell - ; and

[0070] A transition response receiving module configured to receive a handover response signaling transmitted from the target base station, wherein the handover response signaling includes indication information for at least one of the target antenna panel and the target beam; further comprises

[0071] Optionally, the device,

[0072] A panel information receiving module configured to receive candidate panel information transmitted from the above terminal - said candidate panel information indicates at least one candidate antenna panel used for random access - ;

[0073] A panel information transmission module configured to transmit the above candidate panel information to the target base station; further comprising

[0074] The target antenna panel is selected from the at least one candidate antenna panel.

[0075] Optionally, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0076] Optionally, the device,

[0077] It further includes a failure notification receiving module configured to receive a wireless link failure notification or a beam failure notification transmitted from the above terminal, and

[0078] The above wireless link failure notification is used to notify the service base station of the base station antenna panel where a wireless link failure has occurred, and the above beam failure notification is used to notify the service base station of the base station antenna panel where a beam failure has occurred.

[0079] Optionally, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0080] Optionally, the device,

[0081] An adjacent cell report receiving module configured to receive an adjacent cell measurement report transmitted from the above terminal - the adjacent cell measurement report includes a measurement report of at least one adjacent cell - ;

[0082] It further includes a secondary cell selection module configured to select the target secondary cell from at least one adjacent cell.

[0083] According to a fourth aspect of an embodiment of the present invention, a random access indication device applied to a terminal is provided, and said device,

[0084] Instruction signaling receiving module configured to receive random access instruction signaling;

[0085] It includes a panel beam determination module configured to determine at least one of a target antenna panel and a target beam used to transmit a random access preamble according to the random access instruction signaling above.

[0086] Optionally, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0087] Optionally, the device,

[0088] The system further includes a measurement report transmission module configured to transmit an RRM measurement report to a service base station, wherein the RRM measurement report includes a measurement report of at least one adjacent cell.

[0089] The measurement report of the adjacent cell includes an identifier of the adjacent cell, a measurement value of the adjacent cell, and measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell.

[0090] Optionally, the device,

[0091] It includes a panel information transmission module configured to transmit candidate panel information to the service base station, wherein the candidate panel information indicates at least one candidate antenna panel used for random access, and

[0092] The target antenna panel is selected from the at least one candidate antenna panel.

[0093] Optionally, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0094] Optionally, the device,

[0095] It further includes a failure notification transmission module configured to transmit a wireless link failure notification or a beam failure notification to a service base station, and

[0096] The above wireless link failure notification is used to notify the service base station of the base station antenna panel where a wireless link failure has occurred, and the above beam failure notification is used to notify the service base station of the base station antenna panel where a beam failure has occurred.

[0097] Optionally, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0098] Optionally, the device,

[0099] It further includes an adjacent cell report transmission module configured to transmit an adjacent cell measurement report to a service base station, wherein the adjacent cell measurement report includes a measurement report of at least one adjacent cell.

[0100] The above target secondary cell is selected from at least one adjacent cell.

[0101] According to a fifth aspect of an embodiment of the present invention, a random access indication device applied to a service base station is included, and said device,

[0102] processor;

[0103] Memory for storing executable instructions of the above processor; including;

[0104] The above processor is,

[0105] It is configured to transmit a random access instruction signaling, and the random access instruction signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to a terminal.

[0106] According to a sixth aspect of an embodiment of the present invention, a random access indication device applied to a terminal is provided, and said device,

[0107] processor;

[0108] memory for storing executable instructions of the above processor;

[0109] The above processor is,

[0110] Receive random access instruction signaling;

[0111] According to the above random access instruction signaling, it is configured to determine at least one of the target antenna panel and the target beam used to transmit the random access preamble.

[0112] According to the seventh aspect of an embodiment of the present invention, a non-transient computer-readable storage medium is provided in which a computer program is stored, and the method of the first aspect is implemented when the computer program is executed by a processor.

[0113] According to the eighth aspect of an embodiment of the present invention, a non-transient computer-readable storage medium is provided in which a computer program is stored, and the method of the second aspect is implemented when the computer program is executed by a processor.

[0114] The technical means provided in the embodiments of the present invention may include the following beneficial effects.

[0115] A random access instruction signaling is transmitted to a terminal through a service base station, thereby causing the terminal to determine at least one of a target antenna panel and a target beam used to transmit a random access preamble accordingly; thereby, when the terminal is equipped with multiple antenna panels, the terminal can accurately determine which antenna panel to use to initiate random access, which is advantageous for improving the accuracy and success rate of random access and reducing random access delay.

[0116] It should be understood that the general description above and the detailed description in the following paragraph are merely illustrative and descriptive and do not limit the invention. Brief explanation of the drawing

[0117] The following drawings are incorporated into the specification and constitute part of the specification to illustrate embodiments conforming to the present invention and, together with the specification, interpret the principles of the present invention. FIG. 1 is a schematic diagram of a network architecture according to an exemplary embodiment. FIG. 2 is a flowchart of a random access instruction method according to an exemplary embodiment. FIG. 3 is a flowchart of a random access instruction method according to another exemplary embodiment. FIG. 4 is a flowchart of a random access indication method according to another exemplary embodiment. FIG. 5 is a flowchart of a random access instruction method according to another exemplary embodiment. FIG. 6 is a block diagram of a random access indicator device according to an exemplary embodiment. FIG. 7 is a block diagram of a random access indicator device according to another exemplary embodiment. FIG. 8 is a block diagram of a random access indicator device according to another exemplary embodiment. FIG. 9 is a block diagram of a random access indicator device according to another exemplary embodiment. FIG. 10 is a schematic diagram of the structure of a base station according to an exemplary embodiment. FIG. 11 is a schematic diagram of the structure of a terminal according to an exemplary embodiment. Specific details for implementing the invention

[0118] An exemplary embodiment is described in detail below. Such examples are illustrated in the drawings, and where the following description relates to the drawings, the same numbers in different drawings indicate the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiment are not representative of all embodiments consistent with the present invention. On the other hand, they are merely examples of apparatuses and methods consistent with some aspects of the present invention described in detail in the appended claims.

[0119] The network architecture and business scenarios described in the embodiments of the present invention are intended to more clearly explain the technical means of the embodiments of the present invention and are not intended to be a limitation on the technical means provided in the embodiments of the present invention. Those skilled in the art will understand that, with the advancement of network architecture and the emergence of new business scenarios, the technical means provided in the embodiments of the present invention are still applicable to similar technical problems.

[0120] FIG. 1 is a schematic diagram of a network architecture according to an exemplary embodiment. The network architecture may include a base station (110) and a terminal (120).

[0121] The base station (110) is deployed in an access network. The access network of the 5G NR system can be called NG-RAN (New Generation-Radio Access Network). The base station (110) and the terminal (120) communicate using one of the new wireless communication technologies. For example, they communicate using cellular technology.

[0122] A base station (110) may be a device deployed in an access network and providing wireless communication functions for a terminal (120). The base station (110) may include various types of macro base stations, micro base stations, relay stations, and access points. In systems using different wireless access technologies, the name of the device equipped with base station functions may vary. For example, in a 5G NR system, it is called a gNodeB or gNB. As communication technology advances, the name "base station" may change. For convenience of explanation, embodiments of the present invention refer to the device providing wireless communication functions for the terminal (120) as a base station. The base station (110) may be a single vehicle-mounted device and is applied to the scenario of vehicle-to-vehicle communication in the connection between a vehicle and an object. When vehicles communicate with each other, the channels or signaling of the present invention are all channels or signalings applied to the sidelink.

[0123] The number of terminals (120) is generally large, and one or more terminals (120) can be deployed in the area managed by each base station (110). The terminals (120) may include various mobile devices including wireless communication functions, vehicle-mounted devices, wearable devices, computer devices, or other processing devices connected to a wireless modem, as well as various types of User Equipment (UE), Mobile Station (MS), terminal devices, etc. For convenience of explanation, the embodiments of the present invention refer to the devices as terminals. The terminal (120) may be a single vehicle-mounted device and is applied to the scene of communication between vehicles and vehicles, or between vehicles and objects. When vehicles communicate with each other, the channels or signaling of the present invention are all channels or signalings applied to the sidelink.

[0124] The "5G NR system" of the embodiments of the present invention may be referred to as a 5G system or an NR system, but those skilled in the art will understand the meaning thereof. The technical means described in the embodiments of the present invention may be applied to a 5G NR system and may also be applied to a subsequent advanced system of the 5G NR system.

[0125] FIG. 2 is a flowchart of a random access indication method according to an exemplary embodiment. The method may be applied to the network architecture illustrated in FIG. 1. The method comprises steps 201 to 202 as follows.

[0126] In step 201, the service base station transmits a random access instruction signaling, and the random access instruction signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to a terminal.

[0127] The service base station transmits a random access instruction signaling to the terminal, and correspondingly, the terminal receives the random access instruction signaling transmitted from the said service base station. The service base station refers to the base station to which the service cell accessed by the terminal belongs.

[0128] When a terminal accesses only one service cell, the service base station is the base station to which the service cell belongs. When a terminal accesses multiple service cells simultaneously, for example, when a terminal accesses one PCell (Primary cell) and one or more SCells (Secondary cells), and the Pcell and Scell ​​share a single base station, the service base station is the shared base station. When the Pcell and Scell ​​do not share a single base station, that is, when dual connections exist and there are PeNBs and SeNBs, the service base station may be the base station to which the Pcell belongs, or it may be the base station to which the PScell ​​(Primary and Secondary Cells) belongs.

[0129] In an embodiment of the present invention, the terminal has at least two antenna panels, and each antenna panel includes at least one beam. A service base station indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to the terminal through random access indication signaling. The target antenna panel may be one antenna panel or multiple antenna panels. The target beam may be one beam or multiple beams. If the target beam is multiple beams, the multiple beams may belong to the same antenna panel or to multiple different antenna panels. If the random access indication signaling includes multiple target antenna panels and multiple target beams simultaneously, the target antenna panel corresponding to each target beam must be clearly indicated.

[0130] Optionally, the random access instruction signaling includes instruction information for at least one of the target antenna panel and the target beam, and said instruction information serves as a sign for at least one of the target antenna panel and the target beam.

[0131] In one example, the indication information includes an identifier of a target antenna panel and / or an identifier of a target beam. That is, the random access indication signaling includes an identifier of a target antenna panel and / or an identifier of a target beam. The identifier of the target antenna panel is used to indicate only said target antenna panel, and different antenna panels have different identifiers. The identifier of the antenna panel may be recorded as a panel ID and may be a string composed of at least one element of a number, a character, or a character code. The identifier of the target beam is used to indicate only said target beam, and different beams have different identifiers. The identifier of the beam may be recorded as a beam ID and may be a string composed of at least one element of a number, a character, or a character code. For example, the random access indication signaling includes panel#1 and beam#5, indicating that the target antenna panel used to transmit a random access preamble to a terminal is the antenna panel with number 1, and the target beam used to transmit a random access preamble is the beam with number 5.

[0132] In another embodiment, the instruction information includes at least one of the identifier of the target antenna panel and the second reference signal identifier. That is, the random access instruction signaling includes at least one of the identifier of the target antenna panel and the second reference signal identifier. The second reference signal identifier is used to indicate a target beam. The terminal can determine the target beam used to transmit the random access preamble according to the second reference signal identifier. The second reference signal identifier is an identifier of the second reference signal, and the second reference signal is an uplink reference signal. For example, it may be a Sounding Reference Signal (SRS) or a downlink reference signal. For example, it may be a Synchronization Signal Block (SSB) or a Channel State Information-Reference Signal (CSI-RS). If the second reference signal is an uplink reference signal, the service base station informs the terminal that the transmission beam transmitting the uplink reference signal is used as the target beam used to transmit the random access preamble. When the second reference signal is a downlink reference signal, the service base station informs the terminal that the transmission beam corresponding to the receiving beam that receives the said downlink reference signal is used as the target beam used to transmit the random access preamble. For example, since the random access instruction signaling includes panel #1 and SRS #1, the terminal is informed that the target antenna panel used to transmit the random access preamble is the antenna panel with number 1, and the target beam used to transmit the random access preamble is the transmission beam that transmits said SRS #1.For example, the random access instruction signaling includes panel #1 and SSB #1, so that the target antenna panel used to transmit the random access preamble to the terminal is the antenna panel with number 1, and the target beam used to transmit the random access preamble is the transmission beam corresponding to the receiving beam that receives the SSB #1.

[0133] In another embodiment, the instruction information includes at least one of a second reference signal group identifier (the group is a group or a set) and a second reference signal identifier. That is, the random access instruction signaling includes at least one of a second reference signal group identifier and a second reference signal identifier. The second reference signal group identifier is used to indicate a target antenna panel, and the second reference signal identifier is used to indicate a target beam. A terminal can determine a target antenna panel used to transmit a random access preamble according to the second reference signal group identifier. The second reference signal group identifier is an identifier of the second reference signal group, and the second reference signal group includes at least one reference signal. A terminal can determine a target beam used to transmit a random access preamble according to the second reference signal identifier. The second reference signal identifier is an identifier of the second reference signal. The reference signal may also be an uplink reference signal or a downlink reference signal.

[0134] In another embodiment, the instruction information includes a second reference signal identifier. That is, the random access instruction signaling includes a second reference signal identifier. The second reference signal identifier is used to indicate at least one of a target antenna panel and a target beam. The terminal can determine at least one of a target antenna panel and a target beam used to transmit a random access preamble according to the second reference signal identifier. The second reference signal identifier is an identifier of the second reference signal. In this situation, if the identifier of the reference signal of each antenna panel is floating, the target antenna panel and the target beam used to transmit the random access preamble can be determined through the second reference signal identifier.

[0135] In step 202, the terminal determines at least one of the target antenna panel and the target beam used to transmit the random access preamble according to the random access instruction signaling.

[0136] After receiving random access instruction signaling, the terminal can determine at least one of a target antenna panel and a target beam used to transmit a random access preamble, and by transmitting a random access preamble using at least one of the target antenna panel and the target beam, it initiates random access to the network side.

[0137] Optionally, if the random access instruction signaling indicates only a target antenna panel, the terminal transmits a random access preamble using said target antenna panel. In said situation, if the target antenna panel contains only one beam, the terminal transmits a random access preamble using said beam; if the target antenna panel contains multiple beams, the terminal selects at least one beam from said multiple beams and transmits a random access preamble.

[0138] Optionally, if the random access instruction signaling indicates only the target beam, the terminal determines the target antenna panel and the target beam used to transmit the random access preamble by using the mapping relationship between the antenna panel and the beam to determine the target antenna panel to which the target beam belongs.

[0139] Optionally, if the random access instruction signaling indicates a target antenna panel and a target beam, the terminal can determine the target antenna panel and target beam used to transmit the random access preamble directly.

[0140] For example, if the random access instruction signaling includes panel #0, the terminal transmits a random access preamble using the antenna panel with the number 0, and further transmits a random access preamble using at least one beam of the antenna panel with the number 0. For example, if the random access instruction signaling includes beam #1 and beam #1 belongs to panel #1, the terminal transmits a random access preamble using the beam with the number 1 of the antenna panel with the number 1. For example, if the random access instruction signaling includes panel #1 and beam #1, the terminal transmits a random access preamble using the beam with the number 1 of the antenna panel with the number 1.

[0141] Optionally, the random access instruction signaling further includes an identifier of a target cell, and said target cell is the cell to which the terminal intends to initiate random access. The identifier of the target cell is used to indicate only said target cell, and different cells have different identifiers. The identifier of a cell may be recorded as a cell ID and may be a string consisting of at least one of a number, an alphabet, or a character code. After obtaining the identifier of the target cell, the terminal can know which cell to initiate random access to.

[0142] Optionally, the random access instruction signaling further includes instruction information for an antenna panel and / or beam used to monitor the Random Access Response (RAR) after the terminal transmits a random access preamble. The implementation format of the instruction information for the antenna panel and / or beam used to monitor the RAR may be the same as the implementation format of at least one of the instruction information for the target antenna panel and target beam described above. For example, the antenna panel used to monitor the RAR may be indicated using an antenna panel identifier, may be indicated using a reference signal group identifier, or may be indicated using a reference signal identifier; and the beam of the RAR used to monitor may be indicated using a beam identifier or may be indicated using a reference signal identifier. The reference signal may also be an uplink reference signal or a downlink reference signal. Thus, after transmitting a random access preamble, the terminal can monitor the RAR fed back from the network side with the correct antenna panel and beam, thereby improving random access efficiency.

[0143] As described above, in the technical means provided in the embodiment of the present invention, a random access instruction signaling is transmitted to a terminal through a service base station so that the terminal determines at least one of a target antenna panel and a target beam used to transmit a random access preamble accordingly; thereby, when the terminal is equipped with a plurality of antenna panels, the terminal can accurately determine which antenna panel to use to initiate random access, which is advantageous for improving the accuracy and success rate of random access and reducing random access delay.

[0144] In a situation where the terminal is equipped with multiple antenna panels, the scene in which the terminal starts random access includes (1) to (3).

[0145] (1) All antenna panels of the terminal are switched to the target cell, and one or more antenna panels are selected to transmit a random access preamble to the target cell.

[0146] (2) Among all antenna panels of the terminal, one or more specific antenna panels are switched to a target cell, and among the one or more specific antenna panels, one or more antenna panels are selected and a random access preamble is transmitted to the target cell, wherein the target cell is the cell that the terminal intends to switch to.

[0147] (3) When the terminal detects that a radio link failure or beam failure has occurred in any of the antenna panels of a service cell, it transmits a random access preamble to the target cell using the terminal's target antenna panel, wherein the target cell is effectively a service cell; and the target antenna panel refers to the antenna panel used when the terminal transmits downlink information (e.g., at least one of a downlink reference signal and a downlink control signaling) from the base station antenna panel where the radio link failure or beam failure occurred.

[0148] (4) After the terminal accesses one Pcell, if it needs to add an Scell, it selects one or more antenna panels from the terminal's antenna panel and transmits a random access preamble to the target cell, where the target cell is the SCell to be added.

[0149] Below, the corresponding random access instruction method is introduced and explained for several types of floating scenes mentioned above.

[0150] In scene (1), the random access instruction signaling is a handover command, and said handover command is used to instruct the terminal to switch to a target cell. Optionally, the handover command includes an identifier of the target cell, and the handover command further includes instruction information of at least one of the target antenna panel and the target beam. Thus, the terminal can determine to transmit a random access preamble to the target antenna panel and / or the target beam and implement to initiate random access to the target cell.

[0151] As illustrated in FIG. 3, in scene (1), the random access indication method provided in an embodiment of the present invention includes steps 301 to 306 as follows.

[0152] In step 301, the terminal transmits an RRM measurement report to a service base station, and the RRM measurement report includes a measurement report of at least one adjacent cell.

[0153] When a terminal measures an adjacent cell and a service cell, if it finds that the measurement value of the adjacent cell satisfies a certain measurement report triggering event, for example, Event A3: the adjacent cell measurement value is greater than the service cell measurement value by one offset, the terminal may transmit an RRM measurement report to the service base station; correspondingly, the service base station receives the RRM measurement report transmitted from the terminal. The RRM measurement report is used to report the radio signal quality of the service cell and / or the adjacent cell.

[0154] The RRM measurement report includes a measurement report of at least one adjacent cell. The measurement report of the adjacent cell is used to indicate the wireless signal quality of the adjacent cell. The measurement report of the adjacent cell may include an identifier of the adjacent cell, a measurement value of the adjacent cell, and information on the measurement target.

[0155] Measurements of adjacent cells are used to indicate the wireless signal quality of said adjacent cells. For example, the measurements include, but are not limited to, at least one of the following: RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), and SINR (Signal to Interference plus Noise Ratio). RSRP includes L1-RSRP and / or L3-RSRP, RSRQ includes L1-RSRQ and / or L3-RSRQ, and SINR includes L1-SINR and / or L3-SINR. L1 (Layer 1) is an instantaneous sampling value of the physical layer, and L3 (Layer 3) is the average value of the sliding window of the RRM layer. For example, it is a weighted average.

[0156] The measurement target information is used to indicate at least one of the receiving antenna panel and receiving beam used when the terminal acquires a measurement value of an adjacent cell. When the terminal performs a signal measurement for an adjacent cell, it may use each receiving beam of each receiving antenna panel, but only when using at least one of the receiving antenna panel and receiving beam provided in the measurement target information does the measurement value satisfy at most or any one of the conditions (e.g., exceeding a set threshold). Accordingly, the receiving antenna panel and / or receiving beam provided in the measurement target information is the receiving antenna panel and / or receiving beam used when the terminal acquires the measurement value of the adjacent cell provided in the measurement report, and the terminal receives a downlink reference signal transmitted from the adjacent cell through at least one of the receiving antenna panel and receiving beam and acquires a measurement value corresponding to the downlink reference signal.

[0157] In one example, the measurement target information includes an identifier of a receiving antenna panel and / or an identifier of a receiving beam. For example, the measurement target information includes panel#0 and beam#3, indicating that the receiving antenna panel used when the terminal measures a signal to an adjacent cell is the antenna panel with number 0, and the receiving beam used when the terminal measures a signal to an adjacent cell is the beam with number 3.

[0158] In another embodiment, the measurement target information includes at least one of an identifier of a receiving antenna panel and a first reference signal identifier. The first reference signal identifier is used to indicate a receiving beam. A service base station can determine the receiving beam used when a terminal measures a signal based on the first reference signal identifier. The first reference signal identifier is an identifier of the first reference signal, and the first reference signal may be a downlink reference signal. For example, it may be an SSB or CSI-RS, and it may be an uplink reference signal. For example, it may be an SRS. If the first reference signal is a downlink reference signal, the terminal informs the service base station that what the terminal used was measured with a receiving beam that receives the downlink reference signal; if the first reference signal is an uplink reference signal, the terminal informs the service base station that what the terminal used was measured with a receiving beam corresponding to a transmitting beam that transmits the uplink reference signal. For example, the measurement target information includes panel#0 and SSB#1, and when the terminal measures a signal for an adjacent cell, the receiving antenna panel used is an antenna panel with number 0, and when the terminal measures a signal for an adjacent cell, the receiving beam used is a beam that receives the said SSB#1. Further example, the measurement target information includes panel#0 and SRS#1, and when the terminal measures a signal for an adjacent cell, the receiving antenna panel used is an antenna panel with number 0, and when the terminal measures a signal for an adjacent cell, the receiving beam used is a receiving beam corresponding to a transmitting beam that transmits the said SRS#1.

[0159] In another embodiment, the measurement target information includes at least one of a first reference signal group identifier (the group is a group or a set) and a first reference signal identifier. The first reference signal group identifier is used to indicate a receiving antenna panel, and the first reference signal identifier is used to indicate a receiving beam. A service base station can determine the receiving antenna panel used when the terminal measures a signal according to the first reference signal group identifier. The first reference signal group identifier is an identifier of the first reference signal group, and the first reference signal group may include at least one reference signal. A service base station can determine the receiving beam used when the terminal measures a signal according to the first reference signal identifier. The first reference signal identifier is an identifier of the first reference signal. The reference signal may be a downlink reference signal or an uplink reference signal.

[0160] In another embodiment, the measurement target information includes a first reference signal identifier, and the identifier of the first reference signal is used to indicate at least one of a receiving antenna panel and a receiving beam. A service base station can determine at least one of the receiving antenna panel and a receiving beam used when a terminal performs signal measurement according to the first reference signal identifier. The first reference signal identifier is the identifier of the first reference signal. In such a situation, if the identifier of the reference signal of each antenna panel is floating, the receiving antenna panel and the receiving beam can be determined through the first reference signal identifier.

[0161] For example, assuming that a measurement report of any adjacent cell includes Cell ID #1, panel #0, beam #3, and RSRP, the terminal indicates that for the adjacent cell numbered 1, it measures the downlink reference signal transmitted from the adjacent cell using the receiving antenna panel #0 and the receiving beam beam #3, and the acquired measurement value is RSRP, which can be represented as a single specific numeric value and embodies the wireless signal quality of the adjacent cell.

[0162] It must be explained that the RRM measurement report may include measurement reports of one or more adjacent cells, but the measurement results of said adjacent cells must satisfy certain conditions. For example, the measurement value of an adjacent cell must be greater than one threshold, or the measurement value of an adjacent cell must be greater than one offset relative to the measurement value of a service cell. That is, if the measurement result of any one adjacent cell does not satisfy the above-described conditions, the RRM measurement report does not include the measurement report of said adjacent cell, and if there are no adjacent cells satisfying the above-described conditions, the terminal does not transmit the RRM measurement report.

[0163] Optionally, the RRM measurement report further includes a service cell measurement report, which is used to indicate the wireless signal quality of the service cell. The contents of the service cell measurement report may be similar to those of the adjacent cell measurement report and are not described further here.

[0164] In step 302, the service base station selects a target cell from at least one adjacent cell.

[0165] Optionally, the service base station selects the adjacent cell with the most desirable wireless signal strength as the target cell based on the measurements of each adjacent cell.

[0166] In step 303, the service base station transmits a handover request signaling to the target base station to which the target cell belongs.

[0167] Handover request signaling is used to request a switch to a target cell. Optionally, the handover request signaling includes a measurement report from the target cell. For example, it includes the identifier of the target cell, the measurement values ​​of the target cell, and information regarding the measurement target.

[0168] After receiving the handover request signaling, the target base station transmits a handover response signaling to the service base station if the terminal agrees to switch to the target cell.

[0169] In step 304, the service base station receives the handover response signaling transmitted from the target base station.

[0170] Optionally, the handover response signaling includes indication information for at least one of the target antenna panel and the target beam. That is, when the terminal initiates the said random access, the target base station determines at least one of the target antenna panel and the target beam used to transmit the random access preamble, informs the service base station of said information carrying in the handover response signaling, and informs the terminal by the service base station.

[0171] At least one of the indicator information for the target antenna panel and the target beam serves as a sign for at least one of the target antenna panel and the target beam. As already introduced in the embodiment of FIG. 2, the indicator information may have multiple implementation forms, and the indicator information may include an identifier of the target antenna panel and / or an identifier of the target beam, or at least one of the identifier of the target antenna panel and a second reference signal identifier, or at least one of the identifier of the second reference signal group and a second reference signal identifier, or a second reference signal identifier. Specifically, what format of indicator information to include in the handover response signaling is determined by the format of the measurement target information of the measurement report transmitted from the terminal. Optionally, the format of the indicator information included in the handover response signaling is the same as the format of the measurement target information of the measurement report. For example, if the measurement target information of the measurement report includes an identifier of the receiving antenna panel and / or an identifier of the receiving beam, the indicator information of the handover response signaling includes the identifier of the target antenna panel and / or the identifier of the target beam. For example, if the measurement target information of the measurement report includes at least one of the identifier of the receiving antenna panel and the first reference signal identifier, the instruction information of the handover response signaling includes at least one of the identifier of the target antenna panel and the second reference signal identifier.

[0172] In one possible scenario, when the terminal is equipped with beam correspondence capability, that is, when the terminal receives a downlink signal transmitted from a target base station, the transmitting antenna panel and transmitting beam corresponding to the most desirable receiving antenna panel and receiving beam of the signal are the most desirable selection when transmitting an uplink signal to said target base station. For example, when the terminal receives a downlink signal transmitted from a target base station, the receiving antenna panel most desirable for radio signal strength is panel #1 and the receiving beam is beam #1, the transmitting antenna panel corresponding to said receiving antenna panel #1 is panel #1, and the transmitting beam corresponding to said receiving beam #1 is beam #4, and when the terminal transmits a random access preamble to the target base station using panel #1 and beam #4, the receiving signal at the target base station must be the strongest. In the said situation, if the most desirable receiving antenna panel and receiving beam are determined when the target base station communicates with the terminal according to the measurement report, the most desirable transmitting antenna panel and transmitting beam are also determined accordingly, and these are designated as the target antenna panel and target beam used by the terminal to transmit a random access preamble to the said target base station.

[0173] In other possible situations, where the terminal does not possess beam-related capabilities—that is, where the terminal cannot directly locate the corresponding transmitting antenna panel and transmitting beam by means of the receiving antenna panel and receiving beam—the handover request signaling transmitted by the service base station to the target base station may further include configuration information of the uplink reference signal used by the terminal for uplink measurement. After acquiring said configuration information, the target base station measures the uplink reference signal transmitted by the terminal to obtain a measurement value corresponding to each uplink reference signal, thereby identifying the transmitting antenna panel and transmitting beam most desirable for the measurement value, and designating them as the target antenna panel and target beam used by the terminal to transmit a random access preamble to the said target base station.

[0174] In step 305, the service base station transmits a handover command to the terminal.

[0175] Optionally, the handover command includes an identifier of the target cell and further includes indication information for at least one of the target antenna panel and the target beam. Optionally, the handover command further includes indication information for the antenna panel and / or beam used to monitor the RAR after the terminal transmits a random access preamble.

[0176] In step 306, the terminal determines at least one of the target antenna panel and the target beam used to transmit the random access preamble according to the handover command.

[0177] After receiving a handover command, the terminal may decide to initiate random access to a target cell accordingly, determine at least one of a target antenna panel and a target beam used to transmit a random access preamble, and, using at least one of the target antenna panel and the target beam, transmit a random access preamble to a target base station to which the target cell belongs and initiate random access.

[0178] In addition, the target antenna panel may be one or more, and the target beam may also be one or more.

[0179] The service base station and the target base station may be the same or different, and are not limited thereto.

[0180] In scene (1), an RRM measurement report is transmitted to a service base station through the terminal, and the service base station identifies an adjacent cell with the most desirable signal strength and sets it as the terminal target cell. The target base station to which the target cell belongs determines the target antenna panel and target beam used to transmit the terminal random access preamble, thereby causing the terminal to start random access to the target cell with the most desirable signal strength. When the terminal starts random access to the target cell, it can use the most desirable transmission antenna panel and transmission beam, and secures the random access success rate when performing cell switching.

[0181] In scene (2), similar to scene (1), the random access instruction signaling is a handover command. What is different from scene (1) is that in scene (2), only a specific antenna panel of a part of the terminal is switched to a target cell. For example, the terminal holds a part of the antenna panel to communicate with the current service cell and switches another part of the antenna panel to a different target cell. In scene (2), the terminal must transmit candidate panel information to the service base station, and the candidate panel information instruction is used for at least one candidate antenna panel of random access. The service base station transmits the candidate panel information to the target base station, making it convenient for the target base station to select the target antenna panel from the at least one candidate antenna panel.

[0182] For example, a terminal is equipped with three antenna panels, each being panel #0, panel #1, and panel #2. When the terminal selects panel #0 and panel #2 to switch to a target cell and maintains panel #1 so that it is not switched, the candidate panel information transmitted by the terminal to the service base station may include identifiers of the two candidate antenna panels. For example, it may include panel #0 and panel #2. The target base station selects one or more antenna panels from the two candidate panels and sets them as the target antenna panels used by the terminal to transmit a random access preamble. For example, the target base station selects panel #0 and sets it as the target antenna panel used by the terminal to transmit a random access preamble.

[0183] In scene (2), candidate panel information is transmitted to the network side through the terminal, so that the target base station selects a target antenna panel to be used for transmitting a random access preamble from several candidate antenna panels to be switched determined by the terminal, and ensures that the terminal starts random access using a suitable antenna panel, thereby improving the accuracy and success rate of random access.

[0184] In scene (3), the random access instruction signaling is a radio link recovery command or a beam recovery command, said radio link recovery command is used to trigger a process in which the terminal starts radio link recovery, and said beam recovery command is used to trigger a beam recovery process in which the terminal starts beam recovery. Optionally, the radio link recovery command or beam recovery command includes instruction information for at least one of a target antenna panel and a target beam, so that the terminal can use at least one of the target antenna panel and a target beam to start random access to a target base station (e.g., a service base station) and perform radio link recovery or beam recovery.

[0185] As illustrated in FIG. 4, in scene (3), the random access indication method provided in an embodiment of the present invention includes steps 401 to 403 as follows.

[0186] In step 401, the terminal transmits a wireless link failure notice or a beam failure notice to the service base station.

[0187] A wireless link failure notification is used to notify a service base station of the base station antenna panel where a wireless link failure has occurred. That is, it is used to notify the service base station of which antenna panel of the service base station has experienced a wireless link failure. A beam failure notification is used to notify a service base station of the base station antenna panel where a beam failure has occurred. That is, it informs the service base station of which antenna panel of the service base station has experienced a beam failure. Optionally, a wireless link failure notification or a beam failure notification may include indication information of the base station antenna panel that has experienced the wireless link failure or beam failure. The indication information of the base station antenna panel may be an identifier of the base station antenna panel, may be indicated using a reference signal group identifier and / or a reference signal identifier, and the reference signal may be a downlink reference signal or an uplink reference signal. For example, if the identifier is for a downlink reference signal, and the base station knows that the TRP or antenna panel transmitting the downlink reference signal has beam failed, the base station must use the antenna panel to transmit downlink control signaling to the terminal in a new beam direction.

[0188] In step 402, the service base station transmits a wireless link recovery command or a beam recovery command to the terminal.

[0189] When the terminal transmits a wireless link failure notification to the service base station, the service base station transmits a wireless link recovery command to the terminal; and when the terminal transmits a beam failure notification to the service base station, the service base station transmits a beam recovery command to the terminal.

[0190] Optionally, the wireless link recovery command or beam recovery command includes at least one indication information of a target antenna panel and a target beam. Optionally, the target antenna panel is the antenna panel used when the terminal receives downlink information (e.g., at least one of a downlink reference signal and a downlink control signaling) transmitted by the base station antenna panel that failed the wireless link or beam. The indication information of the target antenna panel may also be an identifier of the target antenna panel, may be indicated using a reference signal group identifier and / or a reference signal identifier, and the reference signal may be a downlink reference signal or an uplink reference signal. For example, if it is an identifier of a downlink reference signal, the terminal is convenient for the base station to know that the terminal should use a new beam direction and initiate random access to the base station's TRP or antenna panel that transmitted the downlink reference signal, and for the base station to obtain a new beam direction in which it transmits downlink control signaling to the terminal.

[0191] Instead of using the aforementioned target antenna panel to notify the antenna panel of a service base station where a wireless link failure or beam failure has occurred by transmitting a random access preamble to a service cell, other methods are used. For example, when a wireless link failure notification or beam failure notification is transmitted to a service base station by transmitting a SR (Scheduling Request) using a PUCCH (Physical Uplink Control Channel), or by transmitting MAC (Medium Access Control) CE (Control Element) signaling using a PUSCH (Physical Uplink Shared Channel), or by transmitting a random access preamble using other service cells or other antenna panels, the service base station must notify the terminal that random access is being performed at the target antenna panel used when transmitting downlink information (e.g., at least one of a downlink reference signal and downlink control signaling) transmitted by the antenna panel of the base station where the wireless link failure or beam failure occurred. The service base station transmits a wireless link recovery command or a beam recovery command to the terminal, and said wireless link recovery command or beam recovery command may include instruction information of said target antenna panel.

[0192] Optionally, the wireless link recovery command or beam recovery command may be RRC (Radio Resource Control) signaling, MAC CE signaling, or DCI (Downlink Control Information) signaling, but is not limited in embodiments of the present invention.

[0193] In step 403, the terminal determines at least one of the target antenna panel and the target beam used to transmit the random access preamble according to a wireless link recovery command or a beam recovery command.

[0194] After receiving a wireless link recovery or beam recovery command, the terminal may determine at least one of a target antenna panel and a target beam used to transmit a random access preamble accordingly, and using at least one of the target antenna panel and the target beam, transmit a random access preamble to a service base station and initiate random access.

[0195] In scene (3), random access is implemented in the wireless link failure or beam failure scene, and the wireless link or beam is restored.

[0196] In scene (4), the random access instruction signaling is a secondary cell add command, and said secondary cell add command is used to instruct the terminal to access the target secondary cell. Optionally, the secondary cell add command includes instruction information for at least one of the target antenna panel and the target beam, so that the terminal can use at least one of the target antenna panel and the target beam to initiate random access to the target base station (e.g., the base station to which the target secondary cell belongs) and access the target secondary cell.

[0197] As illustrated in FIG. 5, in scene (4), the random access indication method provided in an embodiment of the present invention includes steps 501 to 503 as follows.

[0198] In step 501, the terminal transmits an adjacent cell measurement report to the service base station.

[0199] Optionally, the adjacent cell measurement report includes a measurement report of at least one adjacent cell. The adjacent cell measurement report is used to indicate the radio signal quality of the adjacent cell. The adjacent cell measurement report includes the identifier of the adjacent cell, the measurement value of the adjacent cell, and information on the measurement target, etc. For the adjacent cell measurement report, refer to the introduction and description set forth above, and it is not described further here.

[0200] In step 502, the service base station selects a target secondary cell from at least one adjacent cell.

[0201] Optionally, the service base station designates the adjacent cell with the most desirable wireless signal strength as the target secondary cell based on the measurements of each adjacent cell.

[0202] In step 503, the service base station transmits a secondary cell add command to the terminal.

[0203] The secondary cell add command is used to instruct the terminal to access the target secondary cell. Optionally, the secondary cell add command includes an identifier of the target secondary cell. Optionally, the secondary cell add command further includes at least one instruction information among the target antenna panel and the target beam. Regarding the format of at least one instruction information among the target antenna panel and the target beam, refer to the introduction and description of the embodiments described above, which are not described further herein.

[0204] In step 504, the terminal determines at least one of the target antenna panel and the target beam used to transmit the random access preamble according to the secondary cell addition command.

[0205] After receiving a secondary cell addition command, the terminal determines to initiate random access to the target secondary cell accordingly, determines at least one of a target antenna panel and a target beam used to transmit a random access preamble, and uses at least one of the target antenna panel and the target beam to transmit a random access preamble to the base station to which the target secondary cell belongs, and initiates random access.

[0206] In scene (4), the selection of an antenna panel when the terminal accesses a secondary cell is implemented, thereby allowing the terminal to start random access to the secondary cell using a suitable antenna panel, thereby improving the success rate of accessing the secondary cell.

[0207] What needs to be explained is that, in the above-described method embodiment, the technical means of the present invention are introduced and described only from the perspective of the interaction between the terminal and the service base station. With respect to the step performed by the above-described terminal, it can be implemented solely as a random access instruction method on one side of the terminal, and with respect to the step performed by the above-described service base station, it can be implemented solely as a random access instruction method on one side of the service base station.

[0208] The following is an example of an apparatus of the present invention and may be used to carry out an example of a method of the present invention. For details not disclosed in the example of the apparatus of the present invention, refer to the example of the method of the present invention.

[0209] FIG. 6 is a block diagram of a random access indication device according to an exemplary embodiment. The device has a function that implements the example of a method on one side of a service base station described above, and said function may be implemented through hardware or may be implemented by executing the corresponding software through hardware. The device may be the service base station described in the above sentence and may be installed at the service base station. As illustrated in FIG. 6, the device (600) includes an indication signaling transmission module (601).

[0210] The instruction signaling transmission module (601) is configured to transmit a random access instruction signaling, and the random access instruction signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to a terminal.

[0211] In an exemplary embodiment, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0212] In an exemplary embodiment, as illustrated in FIG. 7, the device (600) further includes a measurement report receiving module (602), a target cell selection module (603), a switch request transmitting module (604), and a switch response receiving module (605).

[0213] The measurement report receiving module (602) is configured to receive the RRM measurement report transmitted from the terminal.

[0214] The target cell selection module (603) is configured to select the target cell from at least one adjacent cell.

[0215] The switching request transmission module (604) is configured to transmit a handover request signaling to the target base station to which the target cell belongs, and the handover request signaling includes a measurement report of the target cell.

[0216] The switching response receiving module (605) is configured to receive a handover response signaling transmitted from the target base station, and the handover response signaling includes at least one indication information of the target antenna panel and the target beam.

[0217] In an exemplary embodiment, the measurement report of the adjacent cell includes an identifier of the adjacent cell, a measurement value of the adjacent cell, and measurement target information, wherein the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell.

[0218] In an exemplary embodiment, the measurement target information is,

[0219] Identifier of the receiving antenna panel and / or identifier of the receiving beam;

[0220] Or, an identifier of the receiving antenna panel and / or a first reference signal identifier used to indicate the receiving beam;

[0221] Or, a first reference signal group identifier used to indicate the receiving antenna panel and / or a first reference signal identifier used to indicate the receiving beam;

[0222] Or, a first reference signal identifier used to indicate the receiving antenna panel and / or the receiving beam; is included.

[0223] In an exemplary embodiment, the handover request signaling further includes configuration information of an uplink reference signal used by the terminal to measure the uplink.

[0224] In an exemplary embodiment, as illustrated in FIG. 7, the device (600) further includes a panel information receiving module (606) and a panel information transmitting module (607).

[0225] A panel information receiving module (606) is configured to receive candidate panel information transmitted from the terminal, and the candidate panel information indicates at least one candidate antenna panel used for random access.

[0226] The panel information transmission module (607) is configured to transmit the candidate panel information to the target base station. The target antenna panel is selected from the at least one candidate antenna panel.

[0227] In an exemplary embodiment, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0228] In an exemplary embodiment, as illustrated in FIG. 7, the device (600) further includes a failure notification receiving module (608).

[0229] The failure notification receiving module (608) is configured to receive a wireless link failure notification or a beam failure notification transmitted from the terminal, the wireless link failure notification is used to notify the service base station of a base station antenna panel where a wireless link failure has occurred, and the beam failure notification is used to notify the service base station of a base station antenna panel where a beam failure has occurred.

[0230] In an exemplary embodiment, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0231] In an exemplary embodiment, as illustrated in FIG. 7, the device (600) further includes an adjacent cell report receiving module (609) and a secondary cell selection module (610).

[0232] An adjacent cell report receiving module (609) is configured to receive an adjacent cell measurement report transmitted from the terminal, and the adjacent cell measurement report includes a measurement report of at least one adjacent cell.

[0233] The secondary cell selection module (610) is configured to select the target secondary cell from at least one adjacent cell.

[0234] In an exemplary embodiment, the random access indication signaling is,

[0235] Identifier of the target antenna panel and / or identifier of the target beam;

[0236] Or, an identifier of the target antenna panel and / or a second reference signal identifier used to indicate the target beam;

[0237] Or, a second reference signal group identifier used to indicate the target antenna panel and / or a second reference signal identifier used to indicate the target beam;

[0238] Or, a second reference signal identifier used to indicate the target antenna panel and / or the target beam; is included.

[0239] In an exemplary embodiment, the random access instruction signaling further includes instruction information of an antenna panel and / or beam used to monitor the RAR after the terminal transmits the random access preamble.

[0240] As described above, in the technical means provided in the embodiment of the present invention, a random access instruction signaling is transmitted to a terminal through a service base station so that the terminal determines at least one of a target antenna panel and a target beam used to transmit a random access preamble accordingly; thereby, when the terminal has a plurality of antenna panels, the terminal can accurately determine which antenna panel to use to start random access, which is advantageous for improving the accuracy and success rate of random access and reducing random access delay.

[0241] FIG. 8 is a block diagram of a random access indication device according to another exemplary embodiment. The device has a function that implements the example of a method on one side of the terminal described above, and said function may be implemented through hardware or may be implemented by executing the corresponding software through hardware. The device may be the terminal described in the above sentence and may be installed on the terminal. As illustrated in FIG. 8, the device (800) may include an indication signaling receiving module (801) and a panel beam determination module (802).

[0242] The instruction signaling receiving module (801) may be configured to receive random access instruction signaling;

[0243] The panel beam determination module (802) may be configured to determine at least one of the target antenna panel and the target beam used to transmit the random access preamble according to the random access instruction signaling.

[0244] In an exemplary embodiment, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0245] In an exemplary embodiment, as illustrated in FIG. 9, the device (800) further includes a measurement report transmission module (803).

[0246] A measurement report transmission module (803) is configured to transmit a wireless resource management RRM measurement report to a service base station, and the RRM measurement report includes a measurement report of at least one adjacent cell.

[0247] The measurement report of the adjacent cell includes an identifier of the adjacent cell, a measurement value of the adjacent cell, and measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell.

[0248] In an exemplary embodiment, as illustrated in FIG. 9, the device (800) further includes a panel information transmission module (804).

[0249] A panel information transmission module (804) is configured such that the terminal transmits candidate panel information to the service base station, the candidate panel information indicates at least one candidate antenna panel used for random access, and the target antenna panel is selected from the at least one candidate antenna panel.

[0250] In an exemplary embodiment, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0251] In an exemplary embodiment, as illustrated in FIG. 9, the device (800) further includes a failure notification transmission module (805).

[0252] A failure notification transmission module (805) is configured to transmit a wireless link failure notification or a beam failure notification to a service base station, the wireless link failure notification is used to notify the service base station of a base station antenna panel where a wireless link failure has occurred, and the beam failure notification is used to notify the service base station of a base station antenna panel where a beam failure has occurred.

[0253] In an exemplary embodiment, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0254] In an exemplary embodiment, as illustrated in FIG. 9, the device (800) further includes an adjacent cell report transmission module (806).

[0255] The adjacent cell report transmission module (806) is configured so that the terminal transmits an adjacent cell measurement report to a service base station, the adjacent cell measurement report includes a measurement report of at least one adjacent cell, and the target secondary cell is selected from the at least one adjacent cell.

[0256] As described above, in the technical means provided in the embodiment of the present invention, a random access instruction signaling is transmitted to a terminal through a service base station so that the terminal determines at least one of a target antenna panel and a target beam used to transmit a random access preamble accordingly; thereby, when the terminal has a plurality of antenna panels, the terminal can accurately determine which antenna panel to use to start random access, which is advantageous for improving the accuracy and success rate of random access and reducing random access delay.

[0257] It must be explained that when the device provided in the above-described embodiment implements the said function, it is described by example only by the division of each function module described above, and in actual application, the said function is divided into different function modules to be completed according to actual demand. That is, the internal structure of the device is divided into different function modules to complete all or part of the said function.

[0258] With respect to the device of the above-described embodiment, the specific method of execution and operation of each module has been described in detail in the embodiment related to the method and is not described further here.

[0259] An exemplary embodiment of the present invention further provides a random access indication device, said device may be applied to a service base station introduced in the above description and may implement a random access indication method on one side of a service base station provided in the present invention. The device includes a processor and a memory for storing executable instructions of the processor. The processor,

[0260] It is configured to transmit a random access instruction signaling, and the random access instruction signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to a terminal.

[0261] In an exemplary embodiment, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0262] In an exemplary embodiment, the processor is,

[0263] It is further configured to receive an RRM measurement report transmitted from the terminal, wherein the RRM measurement report includes a measurement report of at least one adjacent cell;

[0264] Further configured to select the target cell from at least one adjacent cell;

[0265] It is further configured to transmit a handover request signaling to a target base station to which the target cell belongs, and the handover request signaling includes a measurement report of the target cell;

[0266] It is further configured to receive a handover response signaling transmitted from the target base station, and the handover response signaling includes at least one indication information of the target antenna panel and the target beam.

[0267] In an exemplary embodiment, the measurement report of the adjacent cell includes an identifier of the adjacent cell, a measurement value of the adjacent cell, and measurement target information, wherein the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell.

[0268] In an exemplary embodiment, the measurement target information is,

[0269] Identifier of the receiving antenna panel and / or identifier of the receiving beam;

[0270] Or, an identifier of the receiving antenna panel and / or a first reference signal identifier used to indicate the receiving beam;

[0271] Or, a first reference signal group identifier used to indicate the receiving antenna panel and / or a first reference signal identifier used to indicate the receiving beam;

[0272] Or, a first reference signal identifier used to indicate the receiving antenna panel and / or the receiving beam; is included.

[0273] In an exemplary embodiment, the handover request signaling further includes configuration information of an uplink reference signal used by the terminal to measure the uplink.

[0274] In an exemplary embodiment, the processor is,

[0275] Further configured to receive candidate panel information transmitted from the above terminal, wherein the candidate panel information indicates at least one candidate antenna panel used for random access;

[0276] Further configured to transmit the above candidate panel information to the above target base station;

[0277] The target antenna panel is selected from the at least one candidate antenna panel.

[0278] In an exemplary embodiment, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0279] In an exemplary embodiment, the processor is,

[0280] Further configured to receive a wireless link failure notification or a beam failure notification transmitted from the above terminal;

[0281] The above wireless link failure notification is used to notify the service base station of the base station antenna panel where a wireless link failure has occurred, and the above beam failure notification is used to notify the service base station of the base station antenna panel where a beam failure has occurred.

[0282] In an exemplary embodiment, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0283] In an exemplary embodiment, the processor is,

[0284] It is further configured to receive an adjacent cell measurement report transmitted from the terminal, wherein the adjacent cell measurement report includes a measurement report of at least one adjacent cell;

[0285] The above is further configured to select the target secondary cell from at least one adjacent cell.

[0286] In an exemplary embodiment, the random access indication signaling is,

[0287] Identifier of the target antenna panel and / or identifier of the target beam;

[0288] Or, an identifier of the target antenna panel and / or a second reference signal identifier used to indicate the target beam;

[0289] Or, a second reference signal group identifier used to indicate the target antenna panel and / or a second reference signal identifier used to indicate the target beam;

[0290] Or, a second reference signal identifier used to indicate the target antenna panel and / or the target beam; is included.

[0291] In an exemplary embodiment, the random access instruction signaling further includes instruction information of an antenna panel and / or beam used to monitor the RAR after the terminal transmits the random access preamble.

[0292] An exemplary embodiment of the present invention further provides a random access indication device, said device may be applied to a terminal described in the preceding sentence and may implement a random access indication method on one side of the terminal provided in the present invention. The device includes a processor and a memory for storing executable instructions of the processor. The processor,

[0293] Receive random access instruction signaling;

[0294] According to the above random access instruction signaling, it is configured to determine at least one of the target antenna panel and the target beam used to transmit the random access preamble.

[0295] In an exemplary embodiment, the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell.

[0296] In an exemplary embodiment, the processor is,

[0297] It is further configured to transmit an RRM measurement report to a service base station, wherein the RRM measurement report includes a measurement report of at least one adjacent cell;

[0298] The measurement report of the adjacent cell includes an identifier of the adjacent cell, a measurement value of the adjacent cell, and measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell.

[0299] In an exemplary embodiment, the processor is,

[0300] It is further configured to transmit candidate panel information to the above service base station, and the candidate panel information indicates at least one candidate antenna panel used for random access;

[0301] The target antenna panel is selected from the at least one candidate antenna panel.

[0302] In an exemplary embodiment, the random access instruction signaling is a wireless link recovery command or a beam recovery command.

[0303] In an exemplary embodiment, the processor is,

[0304] Further configured to transmit a wireless link failure notice or a beam failure notice to a service base station;

[0305] The above wireless link failure notification is used to notify the service base station of the base station antenna panel where a wireless link failure has occurred, and the above beam failure notification is used to notify the service base station of the base station antenna panel where a beam failure has occurred.

[0306] In an exemplary embodiment, the random access instruction signaling is a secondary cell add command, and the secondary cell add command is used to instruct the terminal to access a target secondary cell.

[0307] In an exemplary embodiment, the processor is,

[0308] It is further configured to transmit an adjacent cell measurement report to a service base station, wherein the adjacent cell measurement report includes a measurement report of at least one adjacent cell;

[0309] The above target secondary cell is selected from at least one adjacent cell.

[0310] The foregoing description introduces the means provided in the embodiments of the present invention primarily from the perspective of base stations and terminals. It should be understood that base stations and terminals include corresponding hardware structures and / or software modules that perform each function to implement the functions described above. By combining the units and algorithm steps of each example described in the description of the embodiments disclosed in the present invention, the embodiments of the present invention may be implemented in a combined form of hardware or computer software. Whether any one function is performed in a hardware manner or in a computer software manner is determined by the constraints of the specific application and design of the technical means. Those skilled in the art may implement the functions described for each specific application using different methods, but such implementation shall not exceed the scope of the technical means of the embodiments of the present invention.

[0311] FIG. 10 is a schematic diagram of the structure of a base station according to an exemplary embodiment.

[0312] The base station (1000) includes a transmitter / receiver (1001) and a processor (1002). The processor (1002) may be a controller and is indicated as "controller / processor (1002)" in FIG. 10. The transmitter / receiver (1001) is used to support receiving and transmitting information between the base station and the terminal of the above-described embodiment, and to support communication between the base station and other network entities. The processor (1002) performs functions used to communicate with each terminal. In the uplink, the uplink signal from the terminal is received via an antenna, demodulated by the receiver (1001) (e.g., demodulating a high-frequency signal into a baseband signal), and further processed by the processor (1002) to recover the business data and signaling information transmitted by the terminal. In the downlink, business data and signaling messages are processed by a processor (1002) and modulated by a transmitter (1001) (e.g., modulating a baseband signal into a high-frequency signal) to generate a downlink signal, which is then transmitted to a terminal via an antenna. It should be noted that the aforementioned demodulation or modulation function can be completed by the processor (1002). For example, the processor (1002) is further used to perform each step on the base station side of the above-described method embodiment and / or to perform other steps of the technical means described in the embodiment of the present invention.

[0313] Furthermore, the base station (1000) may further include a memory (1003), and the memory (1003) is used to store program code and data of the base station (1000). In addition, the base station may further include a communication unit (1004). The communication unit (1004) is used to support the base station in communicating with other network entities (e.g., network devices of a core network). For example, in a 5G NR system, the communication unit (1004) may be an NG-U interface and is used to support the base station in communicating with a User Plane Function (UPF) entity; or, the communication unit (1004) may be an NG-C interface and is used to support access to and communication with an Access and Mobility Management Function (AMF) entity.

[0314] It should be understood that FIG. 10 shows only a simplified design of a base station (1000). In actual applications, the base station (1000) may include any number of transmitters, receivers, processors, controllers, memory and communication units, etc., but any base station capable of implementing an embodiment of the present invention is within the scope of protection of the embodiment of the present invention.

[0315] FIG. 11 is a schematic diagram of the structure of a terminal according to an exemplary embodiment.

[0316] The terminal (1100) comprises a transmitter (1101), a receiver (1102), and a processor (1103). The processor (1103) may be a controller and is indicated as "controller / processor (1103)" in FIG. 11. Optionally, the terminal (1100) may further comprise a modem processor (1105), and the modem processor (1105) may comprise an encoder (1106), a modulator (1107), a decoder (1108), and a demodulator (1109).

[0317] In one example, a transmitter (1101) modulates the output sample (e.g., analog conversion, filtering, expansion, and up-conversion) and generates an uplink signal, and transmits the uplink signal to a base station via an antenna. In the downlink, the antenna receives the downlink signal transmitted from the base station. A receiver (1102) modulates the signal received from the antenna (e.g., filtering, expansion, down-conversion, and digitization) and provides an input sample. In the modem processor (1105), an encoder (1106) receives the business data and signaling message to be transmitted in the uplink and processes the business data and signaling message (e.g., formatting, encoding, and interleaving). A modulator (1107) further processes the business data and signaling message after encoding (e.g., symbol mapping and modulation) and provides an output sample. A demodulator (1109) processes the input sample (e.g., demodulation) and provides symbol estimation. The decoder (1108) processes the symbol estimation (e.g., deinterleaving and decoding) and provides already decoded data and signaling messages to be transmitted to the terminal (1100). The encoder (1106), modulator (1107), demodulator (1109), and decoder (1108) may be implemented as a synthesized modem processor (1105). The unit may be processed using wireless access technology used by the wireless access network (e.g., access technology of 5G NR and other evolutionary systems). It should be noted that if the terminal (1100) does not include the modem processor (1105), the above-described functions of the modem processor (1105) may also be completed by the processor (1103).

[0318] The processor (1103) controls and manages the operation of the terminal (1100) and is used to perform processing steps by the terminal (1100) in the embodiment of the present invention described above. For example, the processor (1103) is further used to perform each step on the terminal side of the method embodiment described above, and / or to perform other steps of the technical means described in the embodiment of the present invention.

[0319] Furthermore, the terminal (1100) further includes a memory (1104), and the memory (1104) is used to store program code and data used in the terminal (1100).

[0320] It should be understood that FIG. 11 shows only a simplified design of the terminal (1100). In actual applications, the terminal (1100) may include any number of transmitters, receivers, processors, modem processors, memory, etc., but any terminal capable of implementing an embodiment of the present invention is within the scope of protection of the embodiment of the present invention.

[0321] An embodiment of the present invention further provides a non-transient computer-readable storage medium in which a computer program is stored, and when the computer program is executed by a processor of a service base station, a random access instruction method on one side of the service base station is implemented.

[0322] An embodiment of the present invention provides a non-transient computer-readable storage medium in which a computer program is stored, and when the computer program is executed by a processor of a terminal, a random access instruction method on one side of the terminal is executed.

[0323] Optionally, the non-transient computer-readable storage medium may be a ROM (Read-Only Memory), RAM (Random Access Memory), CD-ROM, magnetic tape, floppy diskette, and optical data storage device, etc.

[0324] It should be understood that "plural" as used in this specification refers to two or more. "And / or" describes the relationship between related objects and indicates that a three-way relationship may exist. For example, A and / or B indicates three situations in which A exists alone, A and B exist simultaneously, or B exists alone. The character symbol " / " typically indicates that the related objects before and after are in an "or" relationship.

[0325] Those skilled in the art can readily conceive of other embodiments of the invention after considering this specification and practicing the invention disclosed herein. The invention is intended to encompass any variation, use, or adaptive modification of the invention, such variation, use, or adaptive modification follows the general principles of the invention and includes known common sense or ordinary technical means in the art that are not disclosed in this specification. This specification and the embodiments are merely illustrative, and the true scope and spirit of the invention are determined by the following claims.

[0326] It should be understood that the present invention is not limited to the exact structure illustrated in the attached drawings and that various modifications and changes are possible without departing from the scope thereof. The scope of the present invention is limited only by the appended claims. Explanation of the symbols

[0327] 801: Instruction signaling receiving module 802: Panel beam determination module

Claims

Claim 1 In a random access instruction method, the service base station receives a wireless resource management (RRM) measurement report transmitted from a terminal - the RRM measurement report includes a measurement report of at least one adjacent cell, the measurement report includes measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell -; the service base station selects a target cell from the at least one adjacent cell; the service base station transmits a handover request signaling to a target base station to which the target cell belongs - the handover request signaling includes a measurement report of the target cell -; the service base station receives a handover response signaling transmitted from the target base station - the handover response signaling includes instruction information of at least one of a target antenna panel and a target beam -; A random access instruction method characterized by including the step of the service base station transmitting a random access instruction signaling, wherein the random access instruction signaling indicates at least one of the target antenna panel and the target beam used to transmit a random access preamble to a terminal, and wherein the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to the target cell. Claim 2 A random access indication method according to claim 1, wherein the measurement report of the adjacent cell further includes an identifier of the adjacent cell and a measurement value of the adjacent cell. Claim 3 A random access indication method according to claim 2, wherein the measurement target information comprises: an identifier of the receiving antenna panel and / or an identifier of the receiving beam; or a first reference signal identifier used to indicate the identifier of the receiving antenna panel and / or the receiving beam; or a first reference signal group identifier used to indicate the receiving antenna panel and / or a first reference signal identifier used to indicate the receiving beam; or a first reference signal identifier used to indicate the receiving antenna panel and / or the receiving beam. Claim 4 A random access indication method according to claim 1, characterized in that the handover request signaling further includes configuration information of an uplink reference signal used by the terminal to measure the uplink. Claim 5 A random access indication method according to claim 1, further comprising the step of the service base station receiving candidate panel information transmitted from the terminal - the candidate panel information indicates at least one candidate antenna panel used for random access -; and the step of the service base station transmitting the candidate panel information to the target base station; wherein the target antenna panel is selected from the at least one candidate antenna panel. Claim 6 A random access instruction method according to claim 1, characterized in that the random access instruction signaling is a wireless link recovery command or a beam recovery command. Claim 7 A random access indication method according to claim 6, wherein the method further comprises the step of the service base station receiving a wireless link failure notice or a beam failure notice transmitted from the terminal, wherein the wireless link failure notice is used to notify the service base station of a base station antenna panel where a wireless link failure has occurred, and the beam failure notice is used to notify the service base station of a base station antenna panel where a beam failure has occurred. Claim 8 A random access instruction method according to claim 1, wherein the random access instruction signaling is a secondary cell addition command, and the secondary cell addition command is used to instruct the terminal to access a target secondary cell. Claim 9 A random access instruction method according to claim 8, further comprising the step of the service base station receiving an adjacent cell measurement report transmitted from the terminal - the adjacent cell measurement report includes a measurement report of at least one adjacent cell -; and the step of the service base station selecting the target secondary cell from the at least one adjacent cell. Claim 10 A random access indication method according to claim 1, wherein the random access indication signaling comprises: an identifier of the target antenna panel and / or an identifier of the target beam; or a second reference signal identifier used to indicate the identifier of the target antenna panel and / or the target beam; or a second reference signal group identifier used to indicate the target antenna panel and / or a second reference signal identifier used to indicate the target beam; or a second reference signal identifier used to indicate the target antenna panel and / or the target beam. Claim 11 A random access indication method according to claim 1, wherein the random access indication signaling further comprises indication information of an antenna panel and / or beam used to monitor a random access feedback RAR after the terminal transmits the random access preamble. Claim 12 A random access instruction method comprising: a step in which a terminal transmits a wireless resource management RRM measurement report to a service base station, wherein the RRM measurement report includes a measurement report of at least one adjacent cell, and the measurement report of the adjacent cell includes measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell; a step in which the terminal receives a random access instruction signaling; and a step in which the terminal determines at least one of a target antenna panel and a target beam used to transmit a random access preamble according to the random access instruction signaling; wherein the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell, and the target cell is selected from the at least one adjacent cell by the service base station based on the measurement report of at least one adjacent cell. Claim 13 A random access indication method according to claim 12, wherein the above method is characterized in that the measurement report of the adjacent cell further includes an identifier of the adjacent cell and a measurement value of the adjacent cell. Claim 14 A random access indication method according to claim 13, wherein the method further comprises the step of the terminal transmitting candidate panel information to the service base station, wherein the candidate panel information indicates at least one candidate antenna panel used for random access; and wherein the target antenna panel is selected from the at least one candidate antenna panel. Claim 15 A random access instruction method characterized in that, in paragraph 12, the random access instruction signaling is a wireless link recovery command or a beam recovery command. Claim 16 A random access indication method according to claim 14, wherein the method further comprises the step of the terminal transmitting a wireless link failure notification or a beam failure notification to a service base station, wherein the wireless link failure notification is used to notify the service base station of a base station antenna panel where a wireless link failure has occurred, and the beam failure notification is used to notify the service base station of a base station antenna panel where a beam failure has occurred. Claim 17 A random access instruction method according to claim 12, wherein the random access instruction signaling is a secondary cell addition command, and the secondary cell addition command is used to instruct the terminal to access a target secondary cell. Claim 18 A random access indication method according to claim 17, wherein the method further comprises the step of the terminal transmitting an adjacent cell measurement report to a service base station, wherein the adjacent cell measurement report includes a measurement report of at least one adjacent cell, and the target secondary cell is selected from the at least one adjacent cell. Claim 19 In an access instruction device applied to a service base station, the device comprises: a measurement report receiving module configured to receive a wireless resource management (RRM) measurement report transmitted from a terminal, wherein the RRM measurement report includes a measurement report of at least one adjacent cell, the measurement report includes measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell; and an instruction signaling transmitting module configured to transmit a random access instruction signaling, wherein the random access instruction signaling indicates at least one of a target antenna panel and a target beam used to transmit a random access preamble to the terminal, and the device comprises: a target cell selection module configured to select a target cell from the at least one adjacent cell; a switching request transmitting module configured to transmit a handover request signaling to a target base station to which the target cell belongs, wherein the handover request signaling includes a measurement report of the target cell; and a switching response receiving module configured to receive a handover response signaling transmitted from the target base station, wherein the handover response signaling includes instruction information of at least one of the target antenna panel and the target beam. A random access instruction device characterized by further including, wherein the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to the target cell. Claim 20 A random access indicating device according to claim 19, wherein the device further comprises: a panel information receiving module configured to receive candidate panel information transmitted from the terminal, wherein the candidate panel information indicates at least one candidate antenna panel used for random access; and a panel information transmitting module configured to transmit the candidate panel information to the target base station; wherein the target antenna panel is selected from the at least one candidate antenna panel. Claim 21 A random access indicator device according to claim 19, characterized in that the random access indicator signaling is a wireless link recovery command or a beam recovery command. Claim 22 A random access indication device according to claim 21, wherein the device further comprises a failure notification receiving module configured to receive a wireless link failure notification or a beam failure notification transmitted from the terminal, wherein the wireless link failure notification is used to notify the service base station of a base station antenna panel where a wireless link failure has occurred, and the beam failure notification is used to notify the service base station of a base station antenna panel where a beam failure has occurred. Claim 23 A random access instruction device according to claim 19, characterized in that the random access instruction signaling is a secondary cell addition command, and the secondary cell addition command is used to instruct the terminal to access a target secondary cell. Claim 24 A random access indicator device according to claim 23, further comprising: an adjacent cell report receiving module configured to receive an adjacent cell measurement report transmitted from the terminal, wherein the adjacent cell measurement report includes a measurement report of at least one adjacent cell; and a secondary cell selection module configured to select the target secondary cell from the at least one adjacent cell. Claim 25 A random access instruction device applied to a terminal, wherein the upper device comprises: a measurement report transmission module configured to transmit a wireless resource management RRM measurement report to a service base station, wherein the RRM measurement report includes a measurement report of at least one adjacent cell, and the measurement report of the adjacent cell includes measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell; an instruction signaling reception module configured to receive a random access instruction signaling; and a panel beam determination module configured to determine at least one of a target antenna panel and a target beam used to transmit a random access preamble according to the random access instruction signaling; wherein the random access instruction signaling is a handover command, and the handover command is used to instruct the terminal to switch to a target cell, and the target cell is selected from the at least one adjacent cell by the service base station based on the measurement report of at least one adjacent cell. Claim 26 A random access indicator device according to claim 25, wherein the device is characterized in that the measurement report of the adjacent cell further includes an identifier of the adjacent cell and a measurement value of the adjacent cell. Claim 27 A random access indicating device according to claim 26, wherein the device comprises a panel information transmitting module configured to transmit candidate panel information to the service base station, the candidate panel information indicates at least one candidate antenna panel used for random access, and the target antenna panel is selected from the at least one candidate antenna panel. Claim 28 A random access indicator device according to claim 25, characterized in that the random access indicator signaling is a wireless link recovery command or a beam recovery command. Claim 29 A random access indication device according to claim 28, wherein the device further comprises a failure notification transmission module configured to transmit a wireless link failure notification or a beam failure notification to a service base station, wherein the wireless link failure notification is used to notify the service base station of a base station antenna panel where a wireless link failure has occurred, and the beam failure notification is used to notify the service base station of a base station antenna panel where a beam failure has occurred. Claim 30 A random access instruction device according to claim 25, characterized in that the random access instruction signaling is a secondary cell addition command, and the secondary cell addition command is used to instruct the terminal to access a target secondary cell. Claim 31 A random access indicator device according to claim 30, wherein the device further comprises an adjacent cell report transmission module configured to transmit an adjacent cell measurement report to a service base station, wherein the adjacent cell measurement report comprises a measurement report of at least one adjacent cell, and the target secondary cell is selected from the at least one adjacent cell. Claim 32 An access instruction device applied to a service base station comprises: a processor; and a memory for storing executable instructions of the processor; wherein the processor receives a wireless resource management (RRM) measurement report transmitted from a terminal, the RRM measurement report includes a measurement report of at least one adjacent cell, the measurement report includes measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell; wherein the service base station selects a target cell from the at least one adjacent cell; wherein the service base station transmits a handover request signaling to a target base station to which the target cell belongs, and the handover request signaling includes a measurement report of the target cell; A random access instruction device characterized by the service base station receiving a handover response signaling transmitted from the target base station, wherein the handover response signaling includes at least one instruction information of a target antenna panel and a target beam; wherein the service base station is configured to transmit a random access instruction signaling, wherein the random access instruction signaling indicates at least one of the target antenna panel and the target beam used to transmit a random access preamble to a terminal, wherein the random access instruction signaling is a handover command, and wherein the handover command is used to instruct the terminal to switch to a target cell. Claim 33 A random access instruction device applied to a terminal, wherein the device comprises: a processor; and a memory for storing executable commands of the processor; wherein the processor transmits a wireless resource management RRM measurement report to a service base station, the RRM measurement report includes a measurement report of at least one adjacent cell, the measurement report of the adjacent cell includes measurement target information, and the measurement target information is used to indicate at least one of a receiving antenna panel and a receiving beam used by the terminal when measuring the measurement value of the adjacent cell; receives a random access instruction signaling; and is configured to determine at least one of a target antenna panel and a target beam used to transmit a random access preamble according to the random access instruction signaling, wherein the random access instruction signaling is a handover command, the handover command is used to instruct the terminal to switch to a target cell, and the target cell is selected from the at least one adjacent cell by the service base station based on the measurement report of at least one adjacent cell. Claim 34 A non-transient computer-readable storage medium in which a computer program is stored, characterized in that when the computer program is executed by a processor, the method of any one of claims 1 to 11 or the method of any one of claims 12 to 18 is implemented. Claim 35 delete Claim 36 delete Claim 37 delete Claim 38 delete Claim 39 delete Claim 40 delete

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