Report recording method, report receiving method, and apparatuses

Abstract

Embodiments of the present application provide a report recording method, a report receiving method, and apparatuses. The report recording apparatus comprises: a processor, which initiates a random access process in a first cell, and records random access information corresponding to said random access process. The random access information comprises at least one of first information of the first cell and second information of a special cell of a cell group to which the first cell belongs; wherein the first information is either a cell global identifier (CGI) and a tracking area code (TAC) of the first cell, or is a physical cell identifier and frequency information of the first cell. When the random access information supports the recording of the second information, the second information comprises a cell global identifier (CGI) and a tracking area code (TAC) of the special cell.

Description

Report recording method, report receiving method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] In a wireless communication network, a terminal device can initiate random access on a random access channel to achieve uplink synchronization and obtain the information required to communicate with network devices. This process is called a random access process.

[0003] In dual-connectivity (DC) or multi-connectivity (MC) communication, the terminal device can simultaneously have communication connections with at least two access network devices, for example, with a primary base station and one or more secondary base stations. Therefore, the terminal device can perform random access processes with multiple network devices respectively.

[0004] When a random access process is successfully performed between a terminal device and a serving cell or a target serving cell, or when the random access process fails, the terminal device may record the information in the random access process (i.e., random access information), generate a random access report (RA report), and send it to a receiving network device. When the receiving network device determines, based on the information in the random access report, that it is not the relevant network device in the random access report, it also needs to forward the random access report to the relevant network device.

[0005] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0006] Summary of the Invention

[0007] The inventors found that when the terminal device records the cell information of the special cell in the random access information, it only records the cell global identifier. There is a problem that the receiving network device cannot determine the network device to be forwarded based only on the cell global identifier, and thus cannot complete the forwarding of the random access report.

[0008] In response to at least one of the above problems or other similar problems, embodiments of the present application provide a report recording method, a report receiving method, and a device.

[0009] According to one aspect of an embodiment of the present application, a report recording device is provided, configured in a terminal device (UE), wherein the device includes:

[0010] a processor that initiates a random access process in a first cell and records random access information corresponding to the random access process; the random access information includes at least one of first information about the first cell and second information about a special cell in a cell group in which the first cell is located;

[0011] The first information is a cell global identifier (CGI) and a tracking area code (TAC) of the first cell, or a physical cell identifier and frequency information of the first cell;

[0012] When the random access report supports recording the second information, the second information includes a cell global identifier (CGI) and a tracking area code (TAC) of the special cell.

[0013] According to another aspect of an embodiment of the present application, a report receiving apparatus is provided, applied to a first network device, wherein the apparatus includes:

[0014] A receiver receives a random access report sent by a terminal device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

[0015] According to another aspect of an embodiment of the present application, a report receiving apparatus is provided, which is applied to a core network device, wherein the apparatus includes:

[0016] A receiver receives a random access report sent by a first network device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

[0017] One of the beneficial effects of the embodiments of the present application is that: when the terminal device records the random access information, it can record the tracking area code of the special cell, so that the network devices can determine the correct forwarding path based on at least the tracking area code, ensuring that the random access report can be forwarded to the correct network device to be forwarded, so that the corresponding network device can optimize the random access parameters according to the random access report, thereby improving the efficiency or success rate of the random access process.

[0018] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0019] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0020] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0022] FIG1 is a schematic diagram of a primary cell group and a secondary cell group;

[0023] FIG2 is a schematic diagram of a report recording method according to an embodiment of the present application;

[0024] FIG3 is a schematic diagram of a report receiving method according to an embodiment of the present application;

[0025] FIG4 is an interactive diagram of a report receiving method according to an embodiment of the present application;

[0026] FIG5 is an interactive diagram of a report receiving method according to an embodiment of the present application;

[0027] FIG6 is a schematic diagram of a report receiving method according to an embodiment of the present application;

[0028] FIG7 is a schematic diagram of a report forwarding method according to an embodiment of the present application;

[0029] FIG8 is a schematic diagram of a report forwarding method according to an embodiment of the present application;

[0030] FIG9 is a schematic diagram of a report forwarding method according to an embodiment of the present application;

[0031] FIG10 is a schematic diagram of a report recording device according to an embodiment of the present application;

[0032] FIG11 is a schematic diagram of a communication system according to an embodiment of the present application;

[0033] FIG12 is a schematic diagram of a terminal device according to an embodiment of the present application;

[0034] FIG13 is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0036] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0037] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0038] In the embodiments of the present application, a scenario involving network devices and / or terminal devices is taken as an example.

[0039] In the above scenario, the network device may include at least one of a core network device, a third-party application device, an operation administration and maintenance (OAM), and an access network device.

[0040] The core network device may refer to a device in the core network (CN) that provides service support for the terminal device. As some examples, the core network device may be at least one of the following: a mobility and management entity (MME), an access and mobility management function (AMF) entity, a session management function (SMF) entity, a user plane function (UPF) entity, a location management function (LMF) entity, and the like, which are not listed here one by one. Among them, the AMF entity may be responsible for the access management and mobility management of the terminal, the SMF entity may be responsible for session management, such as the establishment of a user session, and the UPF entity may be a functional entity of the user plane, mainly responsible for connecting to the external network. The LMF entity may manage the overall coordination and scheduling of resources required for the location of the terminal device registered with the core network device or accessing the core network device. It should be noted that in the embodiment of the present application, the entity may also be referred to as a network element or a functional entity, such as the AMF entity may also be referred to as an AMF network element or an AMF functional entity, and so on.

[0041] The third-party application device can be an OTT service (over the top server) or other third-party device.

[0042] OAM is a network device that performs operations, management, and maintenance on the network according to the actual needs of the operator's network operations.

[0043] The access network device is an access device that the terminal device uses to access the communication system wirelessly. The access network device can be a base station (BS), a node, an evolved NodeB (eNodeB), a transmission reception point (TRP), a base station (next generation NodeB, gNB) in the fifth generation (5G) mobile communication system, a base station in the sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The access network device can also be a module or unit that completes part of the functions of the base station. For example, it can be at least one of the following modules or units: a centralized unit (CU), a distributed unit (DU), a centralized unit control plane (CU control plane, CU-CP), a centralized unit user plane (CU user plane, CU-CP), an integrated access backhaul (IAB) or other modules or units. The embodiments of the present application do not limit the specific technology and / or specific device form adopted by the access network device. The access network equipment can be deployed on land, including indoors / outdoors, and can be handheld or vehicle-mounted; it can also be deployed on the water, on an airplane, on a balloon or on a satellite; the access network equipment can be deployed in a fixed location or on a mobile carrier, and the embodiments of the present application do not limit this.

[0044] In the above scenarios, a terminal device can be a device with wireless transceiver capabilities that can send signals to and / or receive signals from an access network device. A terminal device can also be referred to as a terminal, mobile station, or mobile terminal. A terminal device can be a mobile phone, tablet, or other device with wireless intelligent transceiver capabilities. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, and various smart scenarios.

[0045] In the above scenarios, access network devices and terminal devices, and terminal devices and terminal devices can communicate via licensed spectrum, unlicensed spectrum, or both. The embodiments of this application do not limit the spectrum resources used for wireless communications.

[0046] For ease of description, the following description is made by taking a base station as an example of a network device. In the following description, "if ...", "under ...", "if ..." and "when ..." can be used interchangeably without causing confusion.

[0047] In an embodiment of the present application, a terminal device may be configured with a primary network device and a secondary network device. As shown in FIG1 , a group of service cells associated with the primary network device may be referred to as an MCG, and a group of service cells associated with the secondary network device may be referred to as a secondary cell group (SCG). The primary cell group may include a primary cell (PCell), or a primary cell and at least one secondary cell (SCell), and the secondary cell group may include a primary SCG cell (PSCell), or a primary and secondary cell and at least one secondary cell. The primary cell and the primary and secondary cells may also be referred to as special cells (spCells). The primary cell refers to a cell deployed at a primary frequency point, and the terminal device initiates an initial connection establishment process or a connection reestablishment process in the cell, or indicates that it is a primary cell during a handover process. The primary and secondary cells refer to the cell in which the terminal device initiates a random access process in a secondary access network device, or the cell in which the terminal device skips the random access process and initiates data transmission during a change of the secondary access network device, or the cell in which the secondary access network device initiates random access during a synchronous reconfiguration process.

[0048] In the embodiments of the present application, the primary base station may also be referred to as a master node (MN) or a primary network device (or a primary cell). The secondary base station may also be referred to as a secondary node (SN) or a secondary network device (or a primary and secondary cell). A control plane connection may be established between the primary base station and the core network, and the primary base station and the secondary base station may each establish a data plane connection with the core network.

[0049] The embodiments of the present application are described below with reference to the accompanying drawings and specific implementation methods.

[0050] Embodiments of the first aspect

[0051] An embodiment of the present application provides a report recording method, which is described from the perspective of a terminal device.

[0052] FIG2 is a schematic diagram of a report recording method according to an embodiment of the present application. As shown in FIG2 , the method includes:

[0053] 201. A terminal device initiates a random access process in a first cell and records random access information corresponding to the random access process; the random access information includes at least one of first information about the first cell and second information about a special cell in a cell group in which the first cell is located.

[0054] The first information is a cell global identifier (CGI) and a tracking area code (TAC) of the first cell, or a physical cell identity (PCI) and frequency information of the first cell; the cell global identifier may include a PLMN ID and a cell identifier (cell ID).

[0055] When the random access information supports recording the second information, the second information includes a cell global identifier (CGI) and a tracking area code (TAC) of the special cell.

[0056] It is worth noting that FIG2 above only schematically illustrates an embodiment of the present application, and the present application is not limited thereto. For example, other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG2 above.

[0057] In some embodiments, the terminal device initiates a random access process in the first cell. The random access process can refer to relevant technologies, and the embodiments of the present application are not limited to this. For example, the random access process can be contention-based random access or non-contention-based random access, or the random access can be four-step random access or two-step random access. The terminal device sends a random access preamble on at least the first cell and attempts to receive a random access response, etc., which will not be repeated here. Regardless of whether the random access process is successful or failed, the terminal device can record (store) the random access information corresponding to the random access process and generate a random access report.

[0058] In some embodiments, the random access information includes first information of a first cell (a successful or failed service cell or a target service cell), at least one of second information of a special cell in the cell group where the first cell is located, and relevant information of the random access process. The above-mentioned first cell or special cell may also be referred to as a cell to be forwarded, which is used by the network device to determine to which cell to forward the random access report. In addition, if the terminal device is not in a standalone private network access mode (standalone NPN access mode, abbreviated as: SNPN access mode), the random access information also includes the public land mobile network (public land mobile network, abbreviated as: PLMN) ID of the terminal device; if the terminal device is in a standalone private network access mode, the random access information also includes the standalone private network identification information (SNPN identifier, abbreviated as: SNPN ID) of the terminal device, and the standalone private network identification information includes PLMN ID and network identification information (network identifier, abbreviated as: N-ID).

[0059] In some embodiments, the first information (cellId) is the cell global identifier and tracking area code (TAC) of the first cell, or the physical cell identifier and frequency information of the first cell. As a possible implementation, if the UE has (if available) the CGI and TAC of the first cell, the first information is the CGI and TAC of the first cell; if the UE does not have the CGI and TAC of the first cell, the first information is the physical cell identifier and frequency information of the first cell (initiating the random access procedure).

[0060] In some embodiments, when the random access information supports recording second information (also called special cell information spCell ID), the second information includes not only the cell global identifier (CGI) of the special cell, but also a newly added tracking area code (TAC).

[0061] As a possible implementation method, the first cell is a secondary cell of the main cell group, and the random access information includes the first information and the second information. The description of the first information is as above, and the cell global identifier (CGI) and tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and tracking area code (TAC) of the main cell of the main cell group. That is to say, if the terminal device supports recording the special cell information of the cell or cell group corresponding to the random access information, if the cell corresponding to the random access information is a secondary cell of the main cell group, or if the random access process corresponding to the random access information is performed on the secondary cell of the main cell group, the terminal device sets the special cell information (i.e., the second information) as the CGI and TAC of the main service cell.

[0062] As a possible implementation method, the first cell is a secondary cell of the secondary cell group, and the random access information includes the first information and the second information. The description of the first information is as above. When the terminal device has (if available) the cell global identifier and tracking area code of the primary and secondary cells of the secondary cell group, the cell global identifier (CGI) and tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and tracking area code (TAC) of the primary and secondary cells; when the terminal device does not have the cell global identifier and tracking area code of the primary and secondary cells of the secondary cell group, the cell global identifier (CGI) and tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and tracking area code (TAC) of the primary cell. That is to say, if the terminal device supports recording the special cell information of the cell or cell group corresponding to the random access information, if the cell corresponding to the random access information is a secondary cell of the secondary cell group, or if the random access process corresponding to the random access information is performed on the secondary cell of the secondary cell group, if the terminal device has the cell global identifier and tracking code information of the primary and secondary cells, the terminal device sets the special cell information (i.e., the second information) as the cell global identifier and tracking code information of the primary and secondary service cells; or, if the terminal device does not have at least one of the cell global identifier and tracking code information of the primary and secondary cells, the terminal device sets the special cell information (i.e., the second information) as the CGI and TAC of the primary service cell.

[0063] As a possible implementation, the first cell is a primary or secondary cell, and the random access information includes the first information; if the first information is the cell global identifier (CGI) and tracking area code (TAC) of the primary or secondary cell. That is, the random access information does not need to include the second information. If the first information is not the cell global identifier (CGI) and tracking area code (TAC) of the primary or secondary cell, the random access information also includes the second information, and the cell global identifier (CGI) and tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and tracking area code (TAC) of the primary cell. That is to say, if the terminal device supports recording the special cell information of the cell or cell group corresponding to the random access information, if the cell corresponding to the random access information is the primary or secondary cell of the secondary cell group, or if the random access procedure corresponding to the random access report is performed on the primary or secondary cell of the secondary cell group, if the first information is not the cell global identifier (CGI) and tracking area code (TAC) of the primary or secondary cell (for example, the first information is PCI and frequency information), the terminal device sets the special cell information (i.e., the second information) as the CGI and TAC of the primary service cell.

[0064] As an example, a UE performs a random access procedure with a secondary cell. Regardless of whether the random access procedure succeeds or fails, the UE records the random access information corresponding to the random access procedure. If the UE is not in independent private network access mode, the terminal device records the terminal device's PLMN ID information, which includes at least one equivalent PLMN ID information including the registered PLMN ID. Alternatively, the UE records the PLMN ID information selected by the UE's upper layer from a received system message. The UE records the first information. Furthermore, the UE may also record the second information. For example, the UE sets the first information as the cell information of the secondary cell. Specifically, if the UE has the CGI and TAC of the secondary cell, the UE sets the first information to the CGI and TAC of the secondary cell; if the UE does not have the CGI and TAC of the secondary cell, the UE sets the first information to the PCI and frequency information of the secondary cell; further, if the UE supports recording the second information, if the secondary cell is a secondary cell of the main cell group, the UE sets the second information to the CGI and TAC of the main cell; if the secondary cell is a secondary cell of the secondary cell group, if the UE has the CGI and TAC of the main and secondary cells, the UE sets the second information to the CGI and TAC of the main and secondary cells; if the UE does not have the CGI and TAC of the main and secondary cells, the UE sets the second information to the CGI and TAC of the main cell.

[0065] As another example, the UE performs a random access process between the primary and secondary cells, and no matter whether the random access process succeeds or fails, the UE records the random access information corresponding to the random access process. If the UE is not in an independent private network access mode, the terminal device records the PLMN ID information of the terminal device, and the PLMN ID information includes at least one equivalent PLMN ID information including the registered PLMN ID, or the UE records the PLMN ID information selected by the UE's upper layer from the received system message; the UE records the first information, and the first information is the CGI and TAC of the primary and secondary cells, or the physical cell identifier and frequency information of the primary and secondary cells. Furthermore, if the first information is not set to the CGI and TAC of the primary and secondary cells, the UE can also record the second information, and the UE sets the second information to the CGI and TAC of the primary cell.

[0066] As another example, the UE performs a random access procedure with the secondary cell. Regardless of whether the random access procedure succeeds or fails, the UE records the random access information corresponding to the random access procedure. If the UE is in an independent private network access mode, the terminal device records the independent private network identification information of the terminal device. The independent private network identification information includes at least one equivalent independent private network identification information including the registered independent private network identification information, or the UE records the independent private network identification information selected by the UE's upper layer from the received system message; the UE records the first information. Furthermore, the UE can also record the second information. For example, the UE sets the first information as the cell information of the secondary cell. Specifically, if the UE has the CGI and TAC of the secondary cell, the UE sets the first information to the CGI and TAC of the secondary cell; if the UE does not have the CGI and TAC of the secondary cell, the UE sets the first information to the PCI and frequency information of the secondary cell; further, if the UE supports recording the second information, if the secondary cell is a secondary cell of the main cell group, the UE sets the second information to the CGI and TAC of the main cell; if the secondary cell is a secondary cell of the secondary cell group, if the UE has the CGI and TAC of the main and secondary cells, the UE sets the second information to the CGI and TAC of the main and secondary cells; if the UE does not have the CGI and TAC of the main and secondary cells, the UE sets the second information to the CGI and TAC of the main cell.

[0067] As another example, the UE performs a random access process between the primary and secondary cells, and no matter whether the random access process succeeds or fails, the UE records the random access information corresponding to the random access process. If the UE is in an independent private network access mode, the terminal device records the independent private network identification information of the terminal device, and the independent private network identification information includes at least one equivalent independent private network identification information including the registered independent private network identification information, or the UE records the independent private network identification information selected by the UE's upper layer from the received system message; the UE records the first information, and the first information is the CGI and TAC of the primary and secondary cells, or the physical cell identification and frequency information of the primary and secondary cells. Furthermore, if the first information is not set to the CGI and TAC of the primary and secondary cells, the UE can also record the second information, and the UE sets the second information to the CGI and TAC of the primary cell.

[0068] In some embodiments, the method may further include:

[0069] 202. Send the random access report to the first network device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of the special cell.

[0070] It can be understood that the terminal device generates a random access report based on the random access information in step 201, and the random access report includes all or part of the random access information.

[0071] In some embodiments, when the terminal device accesses the first network device, the terminal device sends the random access report to the first network device.

[0072] The above embodiments are merely exemplary descriptions of the methods of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used individually, or one or more of the above embodiments may be combined.

[0073] According to an embodiment of the present application, when a terminal device records random access information, it can record the tracking area code of a special cell, so that network devices can determine the correct forwarding path based on at least the tracking area code, ensuring that the random access report can be forwarded to the correct network device to be forwarded, so that the corresponding network device can optimize the random access parameters based on the random access report, thereby improving the efficiency or success rate of the random access process.

[0074] Embodiments of the second aspect

[0075] An embodiment of the present application provides a report receiving method, which is described from the perspective of a first network device.

[0076] FIG3 is a schematic diagram of a report receiving method according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0077] 301. A first network device receives a random access report sent by a terminal device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

[0078] The content of the random access report is described in step 202 in the above embodiment and will not be repeated here.

[0079] In some embodiments, after receiving the random access report, the first network device can determine the cell to be forwarded corresponding to the random access report and the network device to which the cell to be forwarded belongs (which can be referred to as the network device to be forwarded, or the second network device) based on the first information or the second information in the random access report, and determine whether itself is the second network device. As an example, the terminal device initiates a random access process to the second network device. It can be understood that if the first information in the random access report contains CGI, the first network device determines the second network device based on the CGI information (in this case, the second network device is the network device to which the first cell belongs); and / or, if the first information in the random access report does not contain CGI, the first network device determines the second network device based on the CGI information in the second information (in this case, the second network device is the network device to which the special cell belongs).

[0080] In some embodiments, if the first network device is the second network device, the first network device identifies problems in the RACH process according to the random access report and optimizes configuration in a timely manner to improve the success rate of the terminal device in the RACH process.

[0081] In some embodiments, if the first network device is not the second network device, the first network device needs to forward the random access report to the corresponding second network device.

[0082] In some embodiments, if a direct interface exists between the first network device and the second network device, the first network device may determine the second network device based on the CGI in the random access report and forward the corresponding random access report;

[0083] Therefore, optionally, the method may further include:

[0084] 302. The first network device sends the random access report to the second network device, where the second network device is a network device to which the first cell or the special cell belongs.

[0085] In some embodiments, the first network device sends part or all of the random access report information to the second network device via an interface between network devices (also referred to as a direct transmission mechanism). The interface between the first network device and the second network device may be an X2 interface or an Xn interface. Specifically, the first network device may send part or all of the random access report information to the second network device via a failure indication message, a handover report message, an access and mobility message, or other message.

[0086] In some embodiments, if there is no direct interface between the first network device and the second network device, the first network device needs to first forward the random access report to the core network device, and the core network device determines the second network device and forwards the corresponding random access report to the second network device. In the current random access report, if the terminal device records the second information of the special cell, only the cell global identifier is recorded. However, the core network device cannot determine the second network device based only on the cell global identifier of the special cell, and there may be a problem of being unable to forward the random access report, or it may take a lot of queries to find the second network device. Therefore, when recording the random access report, the embodiment of the present application records the TAC of the special cell in addition to the cell global identifier of the special cell. The core network device can determine the correct forwarding path based on the TAC or the PLMN ID and TAC to ensure that the random access report can be forwarded to the correct second network device.

[0087] It can be understood that if the first cell and the special cell belong to different network devices (for example, the first cell is a primary and secondary cell, and the special cell is a primary cell), and the second network device is the network device to which the special cell belongs, the embodiment of the present application also includes: the second network device forwards the above-mentioned random access report to the network device corresponding to the first cell. The specific forwarding mechanism can refer to the description of forwarding the random access report from the first network device to the second network device, which will not be repeated here.

[0088] An embodiment of the present application provides a report receiving method, which is described from the perspective of a first network device.

[0089] FIG4 is a schematic diagram of a report receiving method according to an embodiment of the present application. As shown in FIG4 , the method includes:

[0090] 401. A first network device receives a random access report sent by a terminal device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

[0091] The implementation of step 401 is the same as that of step 301 and will not be described again here.

[0092] The first network device determines the second network device based on the random access report. The implementation method is as described above and will not be repeated here. When the first network device determines that it is not the second network device and there is no direct interface between the first network device and the second network device, the method may further include:

[0093] 402. The first network device sends the random access report to the core network device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of the special cell.

[0094] In some embodiments, the mechanism by which the core network device determines the second network device based on the random access report can refer to the description of the first network device determining the second network device based on the random access report in 301, which will not be repeated here. And / or, the method also includes: the first network device can send the tracking area code (TAC) of the cell to be forwarded, or the cell global identifier (CGI) and tracking area code (TAC) of the special cell, or the PLMN ID and tracking area code (TAC) of the special cell to the core network device in addition to sending the random access report. The cell to be forwarded can be the first cell or the special cell. Through this sending method, the core network device does not need to read or parse the random access report, and does not need to determine the second network device based on the content of the random access report, but directly determines the second network device based on information other than the above-mentioned random access report.

[0095] In some embodiments, if direct communication between the first network device and the second network device is impossible, the first network device may send part or all of the random access report information to the second network device through the core network device (also referred to as an indirect transmission mechanism). For example, part or all of the random access report information is sent to the core network device via the interface between the first network device and the core network device. Implementation methods for the core network device will be described in the embodiments of the third aspect.

[0096] As an example, the first network device sends part or all of the random access report information to the core network device via the S1 or NG interface, and the core network device sends the random access report received from the first network device to the second network device. Specifically, the first network device may send part or all of the random access report information to the second network device via at least one of the following messages on the S1 or NG interface: an uplink RAN ​​configuration transfer message, a downlink RAN ​​configuration transfer message, an eNB configuration transfer message, a core network device configuration transfer message, or other messages.

[0097] It can be understood that if the first cell and the special cell belong to different network devices (for example, the first cell is a primary and secondary cell, and the special cell is a primary cell), and the second network device is the network device to which the special cell belongs, the embodiment of the present application also includes: the second network device forwards the above-mentioned random access report to the network device corresponding to the first cell. The specific forwarding mechanism can refer to the description of forwarding the random access report from the first network device to the second network device, which will not be repeated here.

[0098] At present, when 5G is independently deployed, the logical system of gNB can adopt a central unit (CU) and distributed unit (DU) separation mode. The embodiment of the present application provides a report receiving method, which is explained from the side of the first network device.

[0099] FIG5 is a schematic diagram of a report receiving method according to an embodiment of the present application. As shown in FIG5 , the method includes:

[0100] 501. A first network device receives a random access report sent by a terminal device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

[0101] The content of the random access report is described in step 202 in the above embodiment and will not be repeated here.

[0102] In some embodiments, the first network device may be a CU, and the method may further include:

[0103] 502. The first network device CU sends all or part of the random access report to the DU.

[0104] For example, if the CU can send part or all of the information in the random access report to the DU corresponding to / belonging to the CU through the F1 interface. Specifically, part or all of the information in the random access report is sent through at least one of the F1 setup response (F1 SETUP RESPONSE) message, the F1 setup failure (F1 SETUP FAILURE) message, the user equipment context setup request (UE CONTEXT SETUP REQUEST) message, the GNB-DU configuration update confirmation (GNB-DU CONFIGURATION UPDATE ACKNOWLEDGE) message, the GNB-DU configuration update failure (GNB-DU CONFIGURATION UPDATE FAILURE) message, and the GNB-CU configuration update (GNB-CU CONFIGURATION UPDATE) message.

[0105] In some embodiments, the first network device may be a DU, and the method may further include:

[0106] 502', the first network device DU sends all or part of the random access report information to the CU;

[0107] The above embodiments are merely exemplary descriptions of the methods of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used individually, or one or more of the above embodiments may be combined.

[0108] According to an embodiment of the present application, when a terminal device records random access information, it can record the tracking area code of a special cell, so that network devices can determine the correct forwarding path based on at least the tracking area code, ensuring that the random access report can be forwarded to the correct network device to be forwarded, so that the corresponding network device can optimize the random access parameters based on the random access report, thereby improving the efficiency or success rate of the random access process.

[0109] Embodiments of the third aspect

[0110] An embodiment of the present application provides a report receiving method, which is described from the side of a core network device.

[0111] FIG6 is a schematic diagram of a report receiving method according to an embodiment of the present application. As shown in FIG6 , the method includes:

[0112] 601. A core network device receives a random access report sent by a first network device. The random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

[0113] For the implementation of 601, please refer to 402 of the second aspect of the embodiment, which will not be repeated here.

[0114] In some embodiments, the method may further include:

[0115] 602. The core network device determines the area information to which the second network device belongs at least according to the tracking area code, and determines to forward the random access report to the second network device according to the area information.

[0116] In some embodiments, the core network device (first core network device) determines the area information to which the second network device belongs based on the TAC or tracking area identity (TAI) in the random access report, where TAI is composed of PLMN ID and TAC, and further determines the core network device corresponding to the area (the two core network devices may be the same or different), thereby determining the sending path for forwarding the random access report to the second network device.

[0117] In some embodiments, when the core network device (forwarding core network device) corresponding to the area is the same as the first core network device, the first core network device further determines the second network device based on the CGI in the random access report. The method may also include:

[0118] 603. The core network device (first core network device) forwards the random access report to the second network device.

[0119] As an example, the core network device sends part or all of the random access report information to the second network device through the S1 or NG interface.

[0120] Optionally, the method further includes: the first core network device can receive the tracking area code (TAC) of the cell to be forwarded in addition to the random access report sent by the first network device, or the cell global identifier (CGI) and tracking area code (TAC) of the special cell, or the PLMN ID and tracking area code (TAC) of the special cell. The cell to be forwarded can be the first cell or the special cell. Through this sending method, the core network device does not need to read or parse the random access report, does not need to determine the second network device based on the content of the random access report, but directly determines the second network device based on information other than the above-mentioned random access report.

[0121] In some embodiments, when the core network device corresponding to the area (forwarding core network device) is different from the first core network device, the method may further include (not shown): the core network device sends the random access report to the forwarding core network device corresponding to the tracking area code, and the forwarding core network device determines the second network device and forwards the random access report to the second network device. Optionally, in addition to the random access report, the core network device may also send the tracking area code (TAC) of the cell to be forwarded, or the cell global identifier (CGI) and tracking area code (TAC) of the special cell, or the PLMN ID and tracking area code (TAC) of the special cell to the forwarding core network device. The mechanism for the forwarding core network device to determine the second network device can refer to the mechanism for the core network device to determine the second network device in 402, which will not be repeated here.

[0122] It can be understood that if the first cell and the special cell belong to different network devices (for example, the first cell is a primary and secondary cell, and the special cell is a primary cell), and the second network device is the network device to which the special cell belongs, the embodiment of the present application also includes: the second network device forwards the above-mentioned random access report to the network device corresponding to the first cell. The specific forwarding mechanism can refer to the description of forwarding the random access report from the first network device to the second network device, which will not be repeated here.

[0123] According to an embodiment of the present application, when a terminal device records random access information, it can record the tracking area code of a special cell, so that network devices can determine the correct forwarding path based on at least the tracking area code, ensuring that the random access report can be forwarded to the correct network device to be forwarded, so that the corresponding network device can optimize the random access parameters based on the random access report, thereby improving the efficiency or success rate of the random access process.

[0124] Embodiments of the fourth aspect

[0125] An embodiment of the present application provides a report receiving method, which is described from the perspective of a second network device.

[0126] In some embodiments, the second network device receives a random access report sent by the first network device.

[0127] In some embodiments, the second network device receives a random access report sent by a core network device.

[0128] It can be understood that if the first cell and the special cell belong to different network devices (for example, the first cell is a primary and secondary cell, and the special cell is a primary cell), and the second network device is the network device to which the special cell belongs, the second network device can also forward the above-mentioned random access report process to the network device corresponding to the first cell. For the specific forwarding mechanism, refer to the description of forwarding the random access report from the first network device to the second network device, which will not be repeated here.

[0129] An embodiment of the present application provides a report receiving method, which is described from the side of a forwarding core network device.

[0130] In some embodiments, the forwarding core network device receives the random access report sent by the first core network device, and forwards the random access report to the second core network device.

[0131] For specific implementations of the above embodiments, please refer to the embodiments of the second and third aspects. For different scenarios of the first network device and the second network device, further explanation will be given below in conjunction with Figures 7, 8 and 9.

[0132] FIG7 is a schematic diagram of a report forwarding method according to an embodiment of the present application. For a scenario in which there is a direct interface between a first network device and a second network device, as shown in FIG7 , the method includes:

[0133] 701. The terminal device sends a random access report to the first network device, where the random access report includes a CGI and a TAC of a special cell.

[0134] 702. The first network device forwards the random access report to the second network device.

[0135] FIG8 is a schematic diagram of a report forwarding method according to an embodiment of the present application. For a scenario where there is no direct interface between the first network device and the second network device, as shown in FIG8 , the method includes:

[0136] 801. The terminal device sends a random access report to the first network device, where the random access report includes a CGI and a TAC of a special cell.

[0137] 802. The first network device forwards the random access report to the first core network device.

[0138] 803. The first core network device forwards the random access report to the second network device.

[0139] FIG9 is a schematic diagram of a report forwarding method according to an embodiment of the present application. For a scenario where there is no direct interface between the first network device and the second network device, as shown in FIG9 , the method includes:

[0140] 901. The terminal device sends a random access report to the first network device, where the random access report includes a CGI and a TAC of a special cell.

[0141] 902. The first network device forwards the random access report to the first core network device.

[0142] 903. The first core network device forwards the random access report to the forwarding core network device.

[0143] 904. The forwarding core network device forwards the random access report to the second network device.

[0144] For the implementation of each step in Figures 7, 8 and 9, please refer to the embodiments of the first aspect, the second aspect and the third aspect, which will not be repeated here.

[0145] The above embodiments are merely exemplary descriptions of the methods of the present application, but the present application is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used individually, or one or more of the above embodiments may be combined.

[0146] According to an embodiment of the present application, when a terminal device records random access information, it can record the tracking area code of a special cell, so that network devices can determine the correct forwarding path based on at least the tracking area code, ensuring that the random access report can be forwarded to the correct network device to be forwarded, so that the corresponding network device can optimize the random access parameters based on the random access report, thereby improving the efficiency or success rate of the random access process.

[0147] Embodiments of the fifth aspect

[0148] An embodiment of the present application provides a report recording device.

[0149] Figure 10 is a schematic diagram of a report recording device according to an embodiment of the present application. This device may be, for example, a terminal device, or one or more components or assemblies configured on the terminal device. Since the principle of solving the problem of this device is the same as that of the embodiment of the first aspect, its specific implementation can refer to the implementation of the method of the embodiment of the first aspect, and the same content will not be repeated here.

[0150] As shown in FIG10 , the device 1000 includes:

[0151] Processor 1001 initiates a random access procedure in a first cell and records random access information corresponding to the random access procedure; the random access information includes at least one of first information about the first cell and second information about a special cell in a cell group in which the first cell is located;

[0152] The first information is a cell global identifier (CGI) and a tracking area code (TAC) of the first cell, or a physical cell identifier and frequency information of the first cell;

[0153] When the random access report supports recording the second information, the second information includes a cell global identifier (CGI) and a tracking area code (TAC) of the special cell.

[0154] For the implementation of the random access report, please refer to the embodiment of the first aspect.

[0155] In some embodiments, the apparatus 1001 may further include:

[0156] The transmitter 1002 sends the random access report to the first network device, where the random access report includes the CGI and TAC of the special cell.

[0157] The above embodiments of the present application are illustrative, but the present application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0158] It is worth noting that the above description only describes the components or modules related to this application, but this application is not limited thereto. The above-mentioned device may also include other components or modules. For the specific content of these components or modules, please refer to the relevant art. In addition, the above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0159] According to an embodiment of the present application, when a terminal device records random access information, it can record the tracking area code of a special cell, so that network devices can determine the correct forwarding path based on at least the tracking area code, ensuring that the random access report can be forwarded to the correct network device to be forwarded, so that the corresponding network device can optimize the random access parameters based on the random access report, thereby improving the efficiency or success rate of the random access process.

[0160] Embodiments of the sixth aspect

[0161] An embodiment of the present application also provides a communication system, including a network device and / or a terminal device, wherein the network device includes a first network device, a second network device and / or a core network device.

[0162] Figure 11 is a schematic diagram of a communication system of an embodiment of the present application. As shown in Figure 11, the communication system 1100 may include a first network device 1101, a second network device 1102, a terminal device 1103, a first core network device 1104, and a forwarding core network device 1105.

[0163] In some embodiments, the first network device 1201, the second network device 1202, the terminal device 1203, the first core network device 1104, and the forwarding core network device 1105 are configured to perform the method described in the embodiments of the first, second, third, or fourth aspects. Since the method has been described in detail in the embodiments of the first, second, third, or fourth aspects, the content is incorporated herein and is not repeated.

[0164] An embodiment of the present application also provides a terminal device.

[0165] Figure 12 is a schematic diagram of a terminal device according to an embodiment. As shown in Figure 12 , terminal device 1200 (e.g., corresponding to terminal device 202 in Figure 2 ) may include a processor 1210 and a memory 1220; memory 1220 stores data and programs and is coupled to processor 1210. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication functions or other functions.

[0166] For example, the processor 1210 may be configured to execute a program to implement the method in the embodiment of the first aspect.

[0167] As shown in Figure 12 , the terminal device 1200 may further include: a communication module 1230, an input unit 1240, a display 1250, and a power supply 1260. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1200 does not necessarily include all of the components shown in Figure 12 , and these components are not essential. Furthermore, the terminal device 1200 may also include components not shown in Figure 12 , for which reference may be made to the prior art.

[0168] An embodiment of the present application also provides a network device, which may be, for example, a base station, a CU, a DU, or a core network device, but the present application is not limited thereto and may also be other network devices.

[0169] Figure 13 is a schematic diagram of a network device according to an embodiment of the present application. As shown in Figure 13 , network device 1300 may include a processor 1301 and a memory 1302 ; the memory 1302 is coupled to the processor 1301 . The memory 1302 may store various data and may also store an information processing program 1303 , which is executed under the control of the processor 1301 .

[0170] In some embodiments, the processor 1301 can be configured to execute a program to implement a method as an embodiment of the second, third or fourth aspect, for example, controlling the receiver (transceiver 1304) to receive a random access report, and / or controlling the transmitter (transceiver 1304) to forward a random access report, the contents of which are incorporated herein and will not be repeated here.

[0171] Furthermore, as shown in FIG13 , network device 1300 may further include a transceiver 1304 and an antenna 1305. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 1300 does not necessarily include all of the components shown in FIG13 ; furthermore, network device 1300 may also include components not shown in FIG13 , for which reference may be made to the prior art.

[0172] An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method described in the embodiment of the second, third or fourth aspect.

[0173] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the method described in the embodiment of the second, third, or fourth aspect.

[0174] The above network device may be a first network device or a second network device or a first core network device or a forwarding core network device.

[0175] An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method described in the embodiment of the first aspect.

[0176] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method described in the embodiment of the first aspect.

[0177] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0178] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0179] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0180] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0181] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

Claims

1. A reporting and recording device, applied to a terminal device, comprising: A processor, which initiates a random access procedure in a first cell and records random access information corresponding to the random access procedure; The random access information includes at least one of first information of the first cell and second information of a special cell in a cell group where the first cell is located; Wherein, the first information is a cell global identifier (CGI) and a tracking area code (TAC) of the first cell, or is a physical cell identifier and frequency information of the first cell; When recording the second information in the random access information is supported, the second information includes a cell global identifier (CGI) and a tracking area code (TAC) of the special cell.

2. The device according to claim 1, wherein The first cell is a secondary cell of a primary cell group, the random access information includes the first information and the second information, and the cell global identifier (CGI) and the tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and the tracking area code (TAC) of the primary cell of the primary cell group.

3. The apparatus according to claim 1, wherein, The first cell is a secondary cell of a secondary cell group, and the random access report includes the first information and the second information; When the terminal device has the cell global identifier and the tracking area code of the primary and secondary cells of the secondary cell group, the cell global identifier (CGI) and the tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and the tracking area code (TAC) of the primary and secondary cells; When the terminal device does not have the cell global identifier and the tracking area code of the primary and secondary cells of the secondary cell group, the cell global identifier (CGI) and the tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and the tracking area code (TAC) of the primary cell.

4. The device according to claim 1, wherein, The first cell is a primary and secondary cell, and the random access report includes the first information; If the first information is not the cell global identifier (CGI) and the tracking area code (TAC) of the primary and secondary cells, the random access information includes the second information, and the cell global identifier (CGI) and the tracking area code (TAC) of the special cell included in the second information are the cell global identifier (CGI) and the tracking area code (TAC) of the primary cell.

5. The device according to any one of claims 1 to 4, wherein, When the terminal device is not in the independent private network access mode, the random access information further includes the PLMN ID information of the terminal device.

6. The device according to any one of claims 1 to 4, wherein When the terminal device is in the independent private network access mode, the random access information further includes the independent private network identifier information of the terminal device.

7. The device according to claim 1, wherein The device further comprises: A transmitter, which sends a random access report to a first network device, the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell, and the random access report includes all or part of the random access information.

8. A report receiving device, applied to a first network device, wherein, The device comprises: A receiver, which receives a random access report sent by a terminal device, the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

9. The device according to claim 8, wherein The device further comprises: A transmitter that sends the random access report to a second network device, where the second network device is the network device to which the special cell belongs.

10. The apparatus according to claim 8, wherein, The device further includes: A transmitter that sends the random access report to a core network device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

11. The apparatus according to claim 10, wherein, The transmitter further sends the tracking area code (TAC) of the special cell outside the random access report to the core network device.

12. The device according to claim 8, wherein, The device further includes: A transmitter that sends the random access report to a distributed unit (DU).

13. A report receiving device, applied to a core network device, wherein, The device includes: A receiver that receives a random access report sent by a first network device, where the random access report includes a cell global identifier (CGI) and a tracking area code (TAC) of a special cell.

14. The device according to claim 13, wherein The receiver further receives the tracking area code (TAC) of the special cell sent by the first network device outside the random access report.

15. The device according to claim 13, wherein, The device further includes: A transmitter that forwards the random access report to other core network devices or a second network device.

16. The apparatus according to claim 15, wherein, The device further includes: A processor that determines at least the area information to which a second network device belongs according to the tracking area code, and determines to forward the random access report to the second network device according to the area information.

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