CN110741679B - Secondary cell group configuration method and related product - Google Patents
Secondary cell group configuration method and related product Download PDFInfo
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- CN110741679B CN110741679B CN201880037231.6A CN201880037231A CN110741679B CN 110741679 B CN110741679 B CN 110741679B CN 201880037231 A CN201880037231 A CN 201880037231A CN 110741679 B CN110741679 B CN 110741679B
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Abstract
The embodiment of the application discloses a method for configuring an auxiliary cell group and a related product, comprising the following steps: the terminal measures one or more cells of the first node to obtain a measurement report, wherein the measurement report comprises the corresponding relation between one or more measurement reports and the base station identification of the first node; and sending a measurement report to the network equipment, wherein the measurement report is used for the network equipment to configure the auxiliary cell group for the terminal according to the corresponding relation. According to the embodiment of the application, the terminal can preferentially measure and report the cells belonging to the same base station through enhancing the measurement mechanism, so that the base station can rapidly configure the auxiliary cells for the terminal, and therefore, the switching or configuration delay is shortened through accelerating the configuration of the auxiliary cells, and the utilization rate of the auxiliary cells is improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method for configuring a secondary cell group in a wireless communication system and a related product.
Background
Handover is an important mechanism for communication systems, both for single connection and dual connection mechanisms. The handover mechanism of the single connection requires the handover of the terminal from one serving base station to another serving base station, and the handover of the dual connection mechanism requires the handover of the connection between the terminal and the MN and the SN to another serving base station.
In the existing measurement configuration method, a frequency point and a physical layer cell identity (PCI) list are configured in measurement configuration, the PCI list includes a cell name list (cell list) and a black list (black list), the former is a cell list for a base station to configure a UE to measure, and the latter is a list which does not allow the UE to measure.
Disclosure of Invention
Embodiments of the present application provide a method for configuring an auxiliary cell group and a related product, which enable a terminal to preferentially measure and report cells belonging to a same base station by enhancing a measurement mechanism, so that the base station can rapidly configure the auxiliary cell to the terminal, thereby shortening a handover or configuration delay by accelerating the configuration of the auxiliary cell, and improving the utilization rate of the auxiliary cell.
In a first aspect, an embodiment of the present application provides a method for configuring a secondary cell group, where the method is applied to a terminal, and the method includes:
measuring one or more cells of a first node to obtain a measurement report, wherein the measurement report comprises the corresponding relation between the one or more cells and the base station identification of the first node;
and sending the measurement report to network equipment, wherein the measurement report is used for the network equipment to configure an auxiliary cell group for the terminal according to the corresponding relation.
In a second aspect, an embodiment of the present application provides a secondary cell group configuration method, which is applied to a network device, and the method includes:
receiving a measurement report from a terminal, wherein the measurement report is obtained by measuring one or more cells of a first node by the terminal, and the measurement report comprises a corresponding relation between the one or more cells and a base station identification of the first node;
and configuring the auxiliary cell group for the terminal according to the corresponding relation.
In a third aspect, an embodiment of the present application provides a terminal, where the terminal has a function of implementing a behavior of the terminal in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the terminal includes a processor configured to enable the terminal to perform the corresponding functions of the above-described method. Further, the terminal may further include a transceiver for supporting communication between the terminal and the network device. Further, the terminal may also include a memory, coupled to the processor, that retains program instructions and data necessary for the terminal.
In a fourth aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing a behavior of a first network device in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the network device includes a processor configured to support the network device to perform the corresponding functions of the above-described method. Further, the network device may further include a transceiver for supporting communication between the network device and the terminal. Further, the network device may also include a memory for coupling with the processor that retains program instructions and data necessary for the network device.
In a fifth aspect, embodiments of the present application provide a network device, including a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps of any of the methods of the first aspect of the embodiments of the present application.
In a sixth aspect, embodiments of the present application provide a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps of any of the methods of the second aspect of the embodiments of the present application.
In a seventh aspect, this application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps as described in any one of the methods of the first aspect of this application.
In an eighth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in any one of the methods in the second aspect of the present application.
In a ninth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operable to cause a computer to perform some or all of the steps as described in any one of the methods of the first aspect of the embodiments of the present application. The computer program product may be a software installation package.
In a tenth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program, the computer program being operable to cause a computer to perform some or all of the steps as described in any one of the methods of the second aspect of the embodiments of the present application. The computer program product may be a software installation package.
It can be seen that, in the embodiment of the present application, a terminal first measures one or more cells of a first node to obtain a measurement report, and then sends the measurement report to a network device, where the measurement report includes a correspondence between one or more cells and a base station identifier of the first node, so that the measurement report can be used by the network device to rapidly configure an auxiliary cell group for the terminal according to the correspondence, that is, by using the enhanced measurement mechanism, the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure the auxiliary cell for the terminal, thereby shortening a handover or configuration delay and improving a utilization rate of the auxiliary cell by accelerating configuration of the auxiliary cell.
Drawings
Reference will now be made in brief to the drawings that are needed in describing embodiments or prior art.
Fig. 1 is a network architecture diagram of a possible communication system provided by an embodiment of the present application;
fig. 2 is a flowchart illustrating a method for configuring a secondary cell group according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a method for configuring a secondary cell group according to an embodiment of the present application;
fig. 4 is a flowchart illustrating a method for configuring a secondary cell group according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
By way of example, fig. 1 illustrates a wireless communication system to which the present application relates. The wireless communication system 100 may operate in a high frequency band, and is not limited to a Long Term Evolution (LTE) system, but may also be a future-Evolution fifth-Generation mobile communication (5 th Generation, 5G) system, a new air interface (NR) system, a Machine-to-Machine communication (M2M) system, and the like. The wireless communication system 100 may include: one or more network devices 101, one or more terminals 103, and a core network device 105. Wherein: the network device 101 may be a base station, and the base station may be configured to communicate with one or more terminals, and may also be configured to communicate with one or more base stations having partial terminal functions (such as a macro base station and a micro base station). The Base Station may be a Base Transceiver Station (BTS) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, an evolved Node B (eNB) in an LTE system, and a Base Station in a 5G system or a new air interface (NR) system. In addition, the base station may also be an Access Point (AP), a transmission node (Trans TRP), a Central Unit (CU), or other network entity, and may include some or all of the functions of the above network entities. The core network device 105 includes Access and Mobility Management Function (AMF) entities, a User Plane Function (UPF) entity, and a Session Management Function (SMF) on the core network side. The terminals 103 may be distributed throughout the wireless communication system 100 and may be stationary or mobile. In some embodiments of the present application, the terminal 103 may be a mobile device (e.g., a smart phone), a mobile station (mobile station), a mobile unit (mobile unit), an M2M terminal, a wireless unit, a remote unit, a user agent, a mobile client, and so forth.
It should be noted that the wireless communication system 100 shown in fig. 1 is only for more clearly illustrating the technical solution of the present application, and does not constitute a limitation to the present application, and as a person having ordinary skill in the art knows, the technical solution provided in the present application is also applicable to similar technical problems as the network architecture evolves and new service scenarios emerge.
The related art to which the present application relates is described below.
The existing dual connectivity architecture can only support one Master Node (MN) and one Secondary Node (SN). If the terminal wants to configure more secondary cells SCell, when reporting the measurement, the PCI cannot distinguish the association between the cell and the base station, so the cell configured by the terminal may not be a secondary node but may be a cell of a different base station in the neighboring area. Thus, even if the cell is reported to the network, the reported cells do not belong to the same base station, and cannot be all configured to the terminal, which causes the efficiency of measurement reporting to be low and makes it difficult to configure the SCell for the terminal quickly.
In view of the above problems, the embodiments of the present application propose the following embodiments, which are described in detail below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flowchart of a secondary cell group configuration method provided in an embodiment of the present application, which is applied to the above example communication system, and the method includes:
in part 201, a terminal measures one or more cells of a first node to obtain a measurement report, wherein the measurement report comprises a corresponding relation between the one or more cells and a base station identifier of the first node;
the signal coverage of the serving cell of the first node includes the current location of the terminal, the node to which the cell whose signal coverage does not include the current location of the terminal belongs is a second node, and the second node is not in the measurement range of the terminal.
The terminal may include a millimeter wave terminal supporting dual transmission links, and the base station identifier includes an evolved node identifier eNB ID or a node identifier gNB ID of a new wireless system, which is not limited herein.
In part 202, the terminal sends the measurement report to a network device, where the measurement report is used for the network device to configure a secondary cell group for the terminal according to the correspondence.
It can be seen that, in the embodiment of the present application, a terminal first measures one or more cells of a first node to obtain a measurement report, and then sends the measurement report to a network device, where the measurement report includes a correspondence between one or more cells and a base station identifier of the first node, so that the measurement report can be used by the network device to rapidly configure an auxiliary cell group for the terminal according to the correspondence, that is, through the enhanced measurement mechanism, the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure the auxiliary cell for the terminal, thereby shortening handover or configuration delay and improving the utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
In one possible example, before the terminal measures one or more cells of the first node, the method further includes: and autonomously reading system information to acquire the base station identification of the first node.
The system information may be, for example, a Cell Global identity, if an E-UTRAN Cell Global identity (E-CGI) or an NR Cell Global identity (N-CGI), or other forms of Cell Global identities.
In specific implementation, the terminal may trigger a measurement process in advance, and autonomously read system information such as a neighboring cell in advance to obtain a base station identifier. That is, the terminal can autonomously measure cells and analyze correspondence between the cells and the base stations, statistically classify the measured cells, and if the terminal detects 2 cells Cell1 and Cell2 on node 1 and 1 Cell3 on node 2, the terminal may generate a measurement report, which may carry the correspondence between the Cell1, Cell2 and the base station identifier of node 1 and the correspondence between the Cell3 and the base station identifier of node 2, and send the measurement report to the network device.
Therefore, in this example, the terminal can autonomously read the system information to obtain the base station identifier of the first node, and measure the cell of the first node, without performing a cell measurement process limited by the network side according to specific base station identifier information in the measurement configuration sent by the base station, which is more flexible and efficient.
In this possible example, the terminal supports dual connectivity and is in a dual connectivity state; before autonomously reading system information to obtain a base station identity of the first node, the method further includes: and the terminal receives a first message from the network equipment, wherein the first message is used for notifying the update of the main node MN or the auxiliary node SN.
The terminal supports the update of the main node MN and the update of the SN of the auxiliary node, or the update of the SN of the MN is not changed.
For example, assuming that the network device determines that the terminal updates the MN, that is, the MN updates the SN unchanged, the terminal autonomously reads the system information to obtain the identifier of the first node, measures one or more cells under the first node, and adds a corresponding relationship between the one or more cells and the first node in the generated measurement report, where the first node is a node other than the current MN of the terminal.
For another example, assuming that the network device determines that the terminal updates the SN, that is, the MN does not change the SN update, the terminal autonomously reads the system information to obtain the identifier of the first node, measures one or more cells under the first node, and adds a corresponding relationship between the one or more cells and the first node in the generated measurement report, where the first node is a node other than the current SN of the terminal.
It can be seen that, in this example, for a terminal supporting dual connectivity and in a dual connectivity state, the terminal can trigger an operation of autonomously reading system information to obtain a base station identifier of a first node when receiving a first message from the network device and determining to update an MN or an SN, so as to implement a measurement process initiated in advance, and facilitate the terminal to preferentially measure and report cells belonging to the MN or the SN, so that the base station can rapidly configure an auxiliary cell to the terminal, thereby shortening a handover or configuration delay and improving a utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
In this possible example, the terminal supports dual connectivity and is in a single connectivity state; before the terminal autonomously reads system information to obtain the base station identifier of the first node, the method further includes: and the terminal receives a second message from the network equipment, wherein the second message is used for notifying the establishment of the auxiliary node SN.
When the terminal is in the single connection state, only the MN is configured, and the SN is not configured.
For example, the network device determines that the SN is configured for the terminal, then sends a second message to the terminal, and after receiving the second message and determining that the SN is configured, the terminal autonomously reads the system information to obtain the base station identifier of the first node, measures one or more cells under the first node, and adds the measured correspondence between the one or more cells and the corresponding base station identifier in the measurement report.
It can be seen that, in this example, for a terminal supporting dual connectivity and in a single connectivity state, the terminal can trigger an operation of autonomously reading system information to obtain a base station identifier of a first node when receiving a second message, so as to implement a measurement process initiated in advance, and facilitate the terminal to preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure an SN base station and an auxiliary cell thereof to the terminal, thereby accelerating the configuration of the auxiliary cell, shortening configuration delay, and improving the utilization rate of the auxiliary cell.
In an example of this energy, before the terminal autonomously reads system information to obtain the base station identifier of the first node, the method further includes: the terminal establishes RRC connection; receiving and pre-storing measurement configuration from the network equipment through the RRC connection, wherein the measurement configuration is used for indicating the terminal to determine a base station identifier of a detected node when carrying out cell measurement, and reporting the corresponding relation between the base station identifier and a corresponding detected cell when meeting preset conditions; and releasing the RRC connection and switching to an idle state.
For the idle terminal, if a plurality of secondary cells are configured when the terminal is started, measurement can be performed in advance. The preset conditions include: reporting a measurement report if the number of measured cells is greater than or equal to a preset number (e.g., 3); alternatively, when a preset Timer (e.g., 100 seconds) is completed, a measurement report is reported
It can be seen that, in this example, for the terminal in the idle state, the configuration information of the network side may be stored through RRC connection before switching to the idle state, so that after switching to the idle state, an operation of autonomously reading system information to obtain a base station identifier of the first node may be triggered, thereby implementing a measurement process initiated in advance, facilitating the terminal to preferentially measure and report cells belonging to the same base station, so that the base station may rapidly configure a serving primary cell and a serving secondary cell to the terminal, thereby shortening configuration delay and improving the utilization rate of the secondary cell.
In one possible example, before the terminal measures one or more cells of the first node, the method further includes: the terminal receives a measurement configuration from a network device, the measurement configuration including a base station identity of the first node.
The base station identifier carried in the measurement configuration configured for the terminal by the network device is used for indicating a base station corresponding to the cell measurement process.
As can be seen, in this example, since the first node is configured by the network side, that is, the network side can measure the selected base station by actively configuring the terminal, a more accurate cell measurement process is achieved, a cell that cannot be added as an auxiliary cell is prevented from being measured and reported, and measurement efficiency is improved.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a primary node MN and/or a secondary node SN of the terminal.
For example, if the network device determines that the terminal adds one or more cells to the SN, the network device instructs the terminal to add cells to the SN, and after the terminal obtains the notification, the terminal measures the one or more cells under the SN to obtain a measurement report, and adds the measured correspondence between the one or more cells and the base station identifier of the SN to the measurement report.
For another example, if the network device determines that the terminal adds one or more cells to the MN, the network device instructs the terminal to add cells to the MN, and after the terminal obtains the notification, the terminal measures the one or more cells under the MN to obtain a measurement report, and adds the measured correspondence between the one or more cells and the base station identifier of the MN in the measurement report.
It can be seen that, in this example, for a terminal supporting dual connectivity and in a dual connectivity state, when the terminal is notified by a network side to add a cell to an MN or an SN, a process of performing cell measurement under a node that needs to add a cell is triggered, so that the terminal can preferentially measure and report the cell belonging to the MN or the SN, so that a base station can rapidly configure an auxiliary cell to the terminal, thereby shortening configuration delay and improving utilization rate of the auxiliary cell by accelerating configuration of the auxiliary cell.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a node of the terminal except for a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
For example, assuming that the network device determines that the terminal updates the MN, that is, the MN updates the SN unchanged, the terminal is notified of the base station identifier of the first node, the terminal measures one or more cells under the first node, and the corresponding relationship between the one or more cells and the base station identifier of the first node is added in the measurement report.
For another example, assuming that the network device determines that the terminal updates the SN, that is, the MN does not change the SN update, the network device notifies the terminal of the base station identifier of the first node, the terminal measures one or more cells under the first node, and adds the corresponding relationship between the one or more cells and the base station identifier of the first node in the measurement report.
It can be seen that, in this example, after determining that the MN or SN of the terminal needs to be updated, the network side may trigger the cell measurement process of the terminal by sending the node identifier of the first node to the terminal, so that the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure a new MN or SN and an auxiliary cell thereof, thereby shortening a handover or configuration delay and improving a utilization rate of the auxiliary cell.
In this possible example, the terminal supports dual connectivity DC and is in a single connectivity state, the first node is a node other than the current primary node MN of the terminal, and the first node is determined to be a secondary node SN of the terminal.
Wherein, which base station the terminal configures as the secondary node SN needs to be determined by the network device according to the measurement result.
It can be seen that, in this example, for a terminal supporting dual connectivity and in a single connectivity state, after determining that the terminal needs to set an SN, a network side may trigger a cell measurement process of the terminal by sending a node identifier of a first node to the terminal, so that the terminal can preferentially measure and report cells belonging to the same base station, so that a base station can rapidly configure an SN auxiliary node and an auxiliary cell thereof to the terminal, thereby shortening a handover or configuration delay and improving a utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
Referring to fig. 3, in accordance with the embodiment shown in fig. 2, fig. 3 is another secondary cell group configuration method provided in this embodiment, which is applied to the above exemplary communication system, and the method includes:
in part 301, a network device receives a measurement report from a terminal, wherein the measurement report is obtained by the terminal measuring one or more cells of a first node, and the measurement report comprises a corresponding relation between the one or more cells and a base station identification of the first node;
and in part 302, the network equipment configures an auxiliary cell group for the terminal according to the corresponding relation.
It can be seen that, in the embodiment of the present application, the network device receives a measurement report reported by the terminal, where the measurement report is obtained by the terminal measuring one or more cells of the first node, and the measurement report includes a correspondence between the one or more cells and a base station identifier of the first node, so that the network device can configure an auxiliary cell group for the terminal according to the correspondence in the measurement report, that is, through the enhanced measurement mechanism, the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure the auxiliary cell for the terminal, thereby shortening handover or configuration delay and improving the utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
In one possible example, the base station identification is obtained by the terminal autonomously reading system information.
In this possible example, the terminal supports dual connectivity and is in a dual connectivity state; before the network device receives the measurement report from the terminal, the method further includes: and the network equipment sends a first message to the terminal, wherein the first message is used for notifying the update of the main node MN or the auxiliary node SN.
In this possible example, the terminal supports dual connectivity and is in a single connectivity state; before the network device receives the measurement report from the terminal, the method further includes: and the network equipment sends a second message to the terminal, wherein the second message is used for notifying the establishment of the auxiliary node SN.
In this possible example, before the network device receives the measurement report from the terminal, the method further includes: the network equipment establishes RRC connection with the terminal; and sending measurement configuration to the terminal through the RRC connection, wherein the measurement configuration is used for indicating the terminal to determine the base station identification of the detected node when the terminal carries out cell measurement, and reporting the corresponding relation between the base station identification and the corresponding detected cell when preset conditions are met.
In one possible example, before the network device receives the measurement report from the terminal, the method further includes: the network equipment sends measurement configuration to the terminal, wherein the measurement configuration comprises the base station identification of the first node.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a primary node MN and/or a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a node of the terminal except for a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
In this possible example, the terminal supports dual connectivity DC and is in a single connectivity state, the first node is a node other than the current primary node MN of the terminal, and the first node is determined to be a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC; before the network device receives the measurement report from the terminal, the method further includes: the network device determines to release a radio resource control, RRC, connection with the terminal.
Referring to fig. 4, in accordance with the embodiments of fig. 2 and fig. 3, fig. 4 is a flowchart of a secondary cell group configuration method provided by an embodiment of the present application, which is applied to the above example communication system, and the method includes:
in part 401, a terminal measures one or more cells of a first node to obtain a measurement report, where the measurement report includes a correspondence between the one or more cells and a base station identifier of the first node;
and in part 402, the terminal sends the measurement report to network equipment, and the measurement report is used for the network equipment to configure an auxiliary cell group for the terminal according to the corresponding relation.
In part 403, the network device receives a measurement report from a terminal, where the measurement report is obtained by the terminal measuring one or more cells of a first node, and the measurement report includes a correspondence between the one or more cells and a base station identity of the first node;
and in part 404, the network equipment configures an auxiliary cell group for the terminal according to the corresponding relation.
It can be seen that, in the embodiment of the present application, a terminal first measures one or more cells of a first node to obtain a measurement report, and then sends the measurement report to a network device, where the measurement report includes a correspondence between one or more cells and a base station identifier of the first node, so that the measurement report can be used by the network device to rapidly configure an auxiliary cell group for the terminal according to the correspondence, that is, through the enhanced measurement mechanism, the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure the auxiliary cell for the terminal, thereby shortening handover or configuration delay and improving the utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
In accordance with the above-described embodiments, please refer to fig. 5, fig. 5 is a schematic structural diagram of a terminal provided in an embodiment of the present application, where the terminal is a first terminal, and as shown in the figure, the terminal includes a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the following steps;
measuring one or more cells of a first node to obtain a measurement report, wherein the measurement report comprises the corresponding relation between the one or more cells and the base station identification of the first node;
and sending the measurement report to network equipment, wherein the measurement report is used for the network equipment to configure an auxiliary cell group for the terminal according to the corresponding relation.
It can be seen that, in the embodiment of the present application, a terminal first measures one or more cells of a first node to obtain a measurement report, and then sends the measurement report to a network device, where the measurement report includes a correspondence between one or more cells and a base station identifier of the first node, so that the measurement report can be used by the network device to rapidly configure an auxiliary cell group for the terminal according to the correspondence, that is, through the enhanced measurement mechanism, the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure the auxiliary cell for the terminal, thereby shortening handover or configuration delay and improving the utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
In one possible example, the program further includes instructions for: autonomously reading system information to obtain a base station identity of the first node prior to the measuring one or more cells of the first node.
In this possible example, the terminal supports dual connectivity and is in a dual connectivity state; the program further includes instructions for: before one or more cells of the first measurement node, receiving a first message from the network equipment, wherein the first message is used for informing the update of a main node MN or an auxiliary node SN.
In this possible example, the terminal supports dual connectivity and is in a single connectivity state; the program further includes instructions for: receiving a second message from the network device before the measuring of the one or more cells of the first node, the second message being used for informing the establishment of a secondary node, SN.
In this possible example, the program further includes instructions for: establishing an RRC connection prior to said measuring one or more cells of the first node; and the network equipment is used for receiving and pre-storing the measurement configuration from the network equipment through the RRC connection, wherein the measurement configuration is used for indicating the terminal to determine the base station identifier of the detected node when carrying out cell measurement, and reporting the corresponding relation between the base station identifier and the corresponding detected cell when meeting preset conditions;
and releasing the RRC connection and switching to an idle state.
In one possible example, the program further includes instructions for: prior to measuring one or more cells of the first node, receiving a measurement configuration from a network device, the measurement configuration comprising a base station identification of the first node.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a primary node MN and/or a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a node of the terminal except for a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
In this possible example, the terminal supports dual connectivity DC and is in a single connectivity state, the first node is a node other than the current primary node MN of the terminal, and the first node is determined to be a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC; the program further includes instructions for: releasing a radio resource control, RRC, connection prior to said measuring one or more cells of the first node; and for switching from a connected state to an idle state.
Consistent with the above embodiments, please refer to fig. 6, fig. 6 is a schematic structural diagram of a network device provided in an embodiment of the present application, and as shown in the figure, the network device includes a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the following steps;
receiving a measurement report from a terminal, wherein the measurement report is obtained by measuring one or more cells of a first node by the terminal, and the measurement report comprises a corresponding relation between the one or more cells and a base station identification of the first node;
and configuring the auxiliary cell group for the terminal according to the corresponding relation.
It can be seen that, in the embodiment of the present application, the network device receives a measurement report reported by the terminal, where the measurement report is obtained by the terminal measuring one or more cells of the first node, and the measurement report includes a correspondence between the one or more cells and a base station identifier of the first node, so that the network device can configure an auxiliary cell group for the terminal according to the correspondence in the measurement report, that is, through the enhanced measurement mechanism, the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure the auxiliary cell for the terminal, thereby shortening handover or configuration delay and improving the utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
In one possible example, the base station identification is obtained by the terminal autonomously reading system information.
In this possible example, the terminal supports dual connectivity and is in a dual connectivity state; the program further includes instructions for: before the measurement report from the terminal is received, a first message is sent to the terminal, and the first message is used for notifying the update of the main node MN or the auxiliary node SN.
In this possible example, the terminal supports dual connectivity and is in a single connectivity state; the program further includes instructions for: and sending a second message to the terminal before the measurement report from the terminal is received, wherein the second message is used for notifying the establishment of the auxiliary node SN.
In this possible example, the program further includes instructions for: establishing an RRC connection with a terminal prior to said receiving a measurement report from the terminal; and the system is used for sending measurement configuration to the terminal through the RRC connection, wherein the measurement configuration is used for indicating the terminal to determine the base station identification of the detected node when the terminal carries out cell measurement, and reporting the corresponding relation between the base station identification and the corresponding detected cell when preset conditions are met.
In one possible example, the program further includes instructions for: sending a measurement configuration to the terminal prior to said receiving a measurement report from the terminal, the measurement configuration comprising a base station identity of the first node.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a primary node MN and/or a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a node of the terminal except for a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
In this possible example, the terminal supports dual connectivity DC and is in a single connectivity state, the first node is a node other than the current primary node MN of the terminal, and the first node is determined to be a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC; the program further includes instructions for: determining to release a radio resource control, RRC, connection with a terminal prior to said receiving a measurement report from the terminal.
The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is understood that the terminal and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above-described functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the terminal and the network device may be divided according to the above method examples, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In case of an integrated unit, fig. 7 shows a block diagram of a possible functional unit composition of the terminal, which is a first terminal, referred to in the above embodiments. The terminal 700 includes: a processing unit 702 and a communication unit 703. Processing unit 702 is configured to control and manage actions of the terminal, e.g., processing unit 702 is configured to enable the terminal to perform step 201 in fig. 2, 401 in fig. 4, and/or other processes for the techniques described herein. The communication unit 703 is used to support communication between the terminal and other devices, for example, communication with a network device shown in fig. 6. The terminal may further include a storage unit 701 for storing program codes and data of the terminal.
The processing unit 702 may be a processor or a controller, the communication unit 703 may be a transceiver, a transceiver circuit, a radio frequency chip, or the like, and the storage unit 701 may be a memory.
The processing unit 702 is configured to measure one or more cells of a first node, and obtain a measurement report, where the measurement report includes a correspondence between the one or more cells and a base station identifier of the first node; and is configured to send the measurement report to a network device through the communication unit 703, where the measurement report is used for the network device to configure the secondary cell group for the terminal according to the correspondence.
It can be seen that, in this example, the terminal first measures one or more cells of the first node to obtain a measurement report, and then sends the measurement report to the network device, where the measurement report includes a correspondence between one or more cells and the base station identifier of the first node, so that the measurement report can be used by the network device to rapidly configure the auxiliary cell group for the terminal according to the correspondence, that is, the terminal can preferentially measure and report the cells belonging to the same base station through the enhanced measurement mechanism, so that the base station can rapidly configure the auxiliary cells for the terminal, thereby shortening the handover or configuration delay and improving the utilization rate of the auxiliary cells by accelerating the configuration of the auxiliary cells.
In one possible example, the processing unit 702, prior to measuring one or more cells of the first node, is further configured to: the communication unit 703 autonomously reads system information to obtain a base station identifier of the first node.
In this possible example, the terminal supports dual connectivity and is in a dual connectivity state; the processing unit 702, before autonomously reading system information through the communication unit 703 to obtain a base station identifier of the first node, is further configured to: receiving a first message from the network device through the communication unit 703, where the first message is used to notify the update of the primary node MN or the secondary node SN.
In this possible example, the terminal supports dual connectivity and is in a single connectivity state; the processing unit 702, before autonomously reading system information through the communication unit 703 to obtain a base station identifier of the first node, is further configured to: receiving, by the communication unit 703, a second message from the network device, where the second message is used to notify that an auxiliary node SN is established.
In this possible example, before autonomously reading system information to acquire a base station identifier of the first node through the communication unit 703, the processing unit 702 is further configured to: establishing Radio Resource Control (RRC) connection; and is configured to receive and pre-store, through the RRC connection, measurement configuration from the network device through the communication unit 703, where the measurement configuration is configured to instruct the terminal to determine a base station identifier of a detected node when performing cell measurement, and report a correspondence between the base station identifier and a corresponding detected cell when a preset condition is met; and the RRC connection is released and is switched to an idle state.
In one possible example, the processing unit 702, prior to measuring one or more cells of the first node, is further configured to: receiving, by the communication unit 703, a measurement configuration from a network device, the measurement configuration including a base station identity of the first node.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a primary node MN and/or a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a node of the terminal except for a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
In this possible example, the terminal supports dual connectivity DC and is in a single connectivity state, the first node is a node other than the current primary node MN of the terminal, and the first node is determined to be a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC; the processing unit, after receiving the measurement configuration from the network device through the communication unit 703 and before measuring one or more cells of the first node, is further configured to: releasing Radio Resource Control (RRC) connection; and for switching from a connected state to an idle state.
When the processing unit 702 is a processor, the communication unit 703 is a communication interface, and the storage unit 701 is a memory, the terminal according to the embodiment of the present application may be the terminal shown in fig. 5.
In the case of integrated units, fig. 8 shows a block diagram of one possible functional unit of the network device involved in the above-described embodiment. The network device 800 includes: a processing unit 802 and a communication unit 803. Processing unit 802 is configured to control and manage actions of the network device, e.g., processing unit 802 is configured to support the network device to perform step 301 in fig. 3, step 402 in fig. 4, and/or other processes for the techniques described herein. The communication unit 803 is used to support communication between the network device and other devices, for example, a terminal shown in fig. 5. The network device may also comprise a storage unit 801 for storing program codes and data of the network device.
The Processing Unit 802 may be a Processor or a controller, and may be, for example, a Central Processing Unit (CPU), 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 transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 803 may be a transceiver, a transmitting and receiving circuit, etc., and the storage unit 801 may be a memory.
Wherein the processing unit 802 is configured to
It can be seen that, in this example, the network device receives a measurement report reported by the terminal, where the measurement report is obtained by the terminal measuring one or more cells of the first node, and the measurement report includes a corresponding relationship between the one or more cells and a base station identifier of the first node, so that the network device can configure an auxiliary cell group for the terminal according to the corresponding relationship in the measurement report, that is, through the enhanced measurement mechanism, the terminal can preferentially measure and report cells belonging to the same base station, so that the base station can rapidly configure the auxiliary cell for the terminal, thereby shortening handover or configuration delay and improving the utilization rate of the auxiliary cell by accelerating the configuration of the auxiliary cell.
In one possible example, the base station identification is obtained by the terminal autonomously reading system information.
In this possible example, the terminal supports dual connectivity and is in a dual connectivity state; the processing unit 802, before receiving the measurement report from the terminal through the communication unit 803, is further configured to: a first message is sent to the terminal through the communication unit 803, where the first message is used to notify the update of the primary node MN or the secondary node SN.
In this possible example, the terminal supports dual connectivity and is in a single connectivity state; the processing unit 802, before receiving the measurement report from the terminal through the communication unit 803, is further configured to: and sending a second message to the terminal through the communication unit 803, where the second message is used to notify the establishment of the secondary node SN.
In this possible example, the processing unit 802 is further configured to, before receiving the measurement report from the terminal through the communication unit 803: establishing RRC connection with the terminal; and is configured to send, through the communication unit 803, a measurement configuration to the terminal through the RRC connection, where the measurement configuration is configured to instruct the terminal to determine a base station identifier of a detected node when performing cell measurement, and report a correspondence between the base station identifier and a corresponding detected cell when a preset condition is satisfied.
In one possible example, before the processing unit 802 receives the measurement report from the terminal through the communication unit 803, it is further configured to: sending, by the communication unit, a measurement configuration to the terminal, the measurement configuration including a base station identity of the first node.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a primary node MN and/or a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC and is in a dual connectivity state, and the first node is a node of the terminal except for a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
In this possible example, the terminal supports dual connectivity DC and is in a single connectivity state, the first node is a node other than the current primary node MN of the terminal, and the first node is determined to be a secondary node SN of the terminal.
In this possible example, the terminal supports dual connectivity DC; the processing unit 802 is further configured to determine to release the radio resource control, RRC, connection with the terminal before receiving the measurement report from the terminal through the communication unit 803.
When the processing unit 802 is a processor, the communication unit 803 is a communication interface, and the storage unit 801 is a memory, the network device according to the embodiment of the present application may be the network device shown in fig. 6.
The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the terminal in the above method embodiment.
The present application also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the network device in the above method embodiments.
Embodiments of the present application also provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the terminal in the above method embodiments. The computer program product may be a software installation package.
Embodiments of the present application also provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the network device in the method. The computer program product may be a software installation package.
The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.
Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in the embodiments of the present application may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present application in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.
Claims (24)
1. A method for configuring a secondary cell group is applied to a terminal, and the method comprises the following steps:
measuring one or more cells of a first node to obtain a measurement report, wherein the measurement report comprises the corresponding relation between the one or more cells and a base station identifier of the first node, so that the terminal preferentially measures and reports the cells belonging to the same base station;
and sending the measurement report to network equipment, wherein the measurement report is used for the network equipment to configure an auxiliary cell group for the terminal according to the corresponding relation.
2. The method of claim 1, wherein prior to measuring the one or more cells of the first node, the method further comprises:
and autonomously reading system information to acquire the base station identification of the first node.
3. The method of claim 2, wherein the terminal supports dual connectivity and is in a dual connectivity state; before autonomously reading system information to obtain a base station identity of the first node, the method further includes:
and receiving a first message from the network equipment, wherein the first message is used for notifying the update of the main node MN or the auxiliary node SN.
4. The method of claim 2, wherein the terminal supports dual connectivity and is in a single connectivity state; before autonomously reading system information to obtain a base station identity of the first node, the method further includes:
and receiving a second message from the network equipment, wherein the second message is used for notifying the establishment of the secondary node SN.
5. The method of claim 2, wherein prior to autonomously reading system information to obtain base station identification of the first node, the method further comprises:
establishing Radio Resource Control (RRC) connection;
receiving and pre-storing measurement configuration from the network equipment through the RRC connection, wherein the measurement configuration is used for indicating the terminal to determine a base station identifier of a detected node when carrying out cell measurement, and reporting the corresponding relation between the base station identifier and a corresponding detected cell when meeting preset conditions;
and releasing the RRC connection and switching to an idle state.
6. The method of claim 1, wherein prior to measuring the one or more cells of the first node, the method further comprises:
receiving a measurement configuration from a network device, the measurement configuration comprising a base station identification of the first node.
7. The method according to claim 6, wherein the terminal supports dual connectivity DC and is in dual connectivity state, and the first node is a primary node MN and/or a secondary node SN of the terminal.
8. The method according to claim 6, wherein the terminal supports dual connectivity DC and is in dual connectivity state, and the first node is a node of the terminal except for a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
9. The method according to claim 6, characterized in that the terminal supports dual connectivity DC and is in single connectivity state, the first node is a node other than the current primary node MN of the terminal, and the first node is determined to be a secondary node SN of the terminal.
10. The method of claim 6, wherein the terminal supports dual connection DC; after the receiving the measurement configuration from the network device and before the measuring the one or more cells of the first node, the method further comprises:
releasing Radio Resource Control (RRC) connection;
switching from the connected state to the idle state.
11. A method for configuring a secondary cell group, applied to a network device, includes:
receiving a measurement report from a terminal, wherein the measurement report is obtained by measuring one or more cells of a first node by the terminal, and the measurement report comprises a corresponding relation between the one or more cells and a base station identifier of the first node, so that the terminal preferentially measures and reports the cells belonging to the same base station;
and configuring the auxiliary cell group for the terminal according to the corresponding relation.
12. The method of claim 11, wherein the base station identity is obtained by the terminal autonomously reading system information.
13. The method according to claim 12, wherein the terminal supports dual connectivity and is in a dual connectivity state; before the receiving the measurement report from the terminal, the method further includes:
and sending a first message to the terminal, wherein the first message is used for notifying the update of the main node MN or the auxiliary node SN.
14. The method according to claim 12, wherein the terminal supports dual connectivity and is in a single connectivity state; before the receiving the measurement report from the terminal, the method further includes:
and sending a second message to the terminal, wherein the second message is used for notifying the establishment of the auxiliary node SN.
15. The method of claim 12, wherein prior to receiving the measurement report from the terminal, the method further comprises:
establishing RRC connection with the terminal;
and sending measurement configuration to the terminal through the RRC connection, wherein the measurement configuration is used for indicating the terminal to determine the base station identification of the detected node when the terminal carries out cell measurement, and reporting the corresponding relation between the base station identification and the corresponding detected cell when preset conditions are met.
16. The method of claim 11, wherein prior to receiving the measurement report from the terminal, the method further comprises:
sending a measurement configuration to the terminal, the measurement configuration comprising a base station identity of the first node.
17. Method according to claim 16, wherein the terminal supports dual connectivity DC and is in dual connectivity state, and wherein the first node is a primary node MN and/or a secondary node SN of the terminal.
18. The method according to claim 16, wherein the terminal supports dual connectivity DC and is in dual connectivity state, and the first node is a node of the terminal other than a primary node MN and a secondary node SN;
and the first node is determined as a main node after the terminal performs main node updating, or determined as an auxiliary node after the terminal performs auxiliary node updating.
19. The method according to claim 16, wherein the terminal supports dual connectivity DC and is in a single connectivity state, wherein the first node is a node other than a current primary node MN of the terminal, and wherein the first node is determined to be a secondary node SN of the terminal.
20. The method of claim 16, wherein the terminal supports dual connection DC; before the receiving the measurement report from the terminal, the method further includes:
determining to release a radio resource control, RRC, connection with the terminal.
21. A terminal comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-10.
22. A network device comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 11-20.
23. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-10.
24. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 11-20.
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| CN113259957B (en) * | 2020-02-07 | 2023-06-06 | 维沃移动通信有限公司 | System information transmission method, terminal, network equipment and SN |
| CN114080063A (en) * | 2020-08-19 | 2022-02-22 | 中国移动通信有限公司研究院 | Method, device and equipment for activating or deactivating secondary node or secondary cell |
| CN114339870A (en) * | 2020-09-30 | 2022-04-12 | 维沃移动通信有限公司 | Report processing method and device, terminal and network side equipment |
| CN114449573A (en) * | 2020-10-30 | 2022-05-06 | 维沃移动通信有限公司 | Indication method, device, equipment and readable storage medium |
| CN112616162B (en) * | 2020-12-10 | 2023-02-17 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Multi-connection method and system in mobile communication system |
| WO2022151194A1 (en) * | 2021-01-14 | 2022-07-21 | Oppo广东移动通信有限公司 | Measurement method and apparatus, and terminal device |
| CN113055933B (en) * | 2021-03-25 | 2023-04-21 | 展讯通信（上海）有限公司 | Cell access method, user equipment and base station |
| CN115190640A (en) * | 2021-04-01 | 2022-10-14 | 华为技术有限公司 | Communication method and communication device |
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| CN110741679A (en) | 2020-01-31 |
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