CN113014370A

CN113014370A - Signaling sending method and device, storage medium, base station equipment and user equipment

Info

Publication number: CN113014370A
Application number: CN202110310741.XA
Authority: CN
Inventors: 邓云
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-06-22
Anticipated expiration: 2041-03-23
Also published as: CN113014370B

Abstract

A signaling sending method and device, a storage medium, a base station device and a user device are provided, wherein the signaling sending method comprises the following steps: when a signaling needs to be sent, the signaling is sent to at least one RLC entity in a plurality of RLC entities, a PDCP entity bearing the signaling is associated with the plurality of RLC entities, and the plurality of RLC entities respectively correspond to a plurality of cells in carrier aggregation; and mapping the signaling on a corresponding cell by using the at least one RLC entity, and sending out the signaling, wherein the cell corresponding to the at least one RLC entity is a main cell and a secondary cell. The technical scheme of the invention can improve the efficiency of signaling transmission.

Description

Signaling sending method and device, storage medium, base station equipment and user equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a signaling sending method and apparatus, a storage medium, a base station device, and a user equipment.

Background

In a New wireless communication system, a terminal can Access the internet through an Access Point (AP), LTE (Long Term Evolution) or New Radio (NR) non-technology is adopted between the terminal and the AP, and the AP can integrate the functions of part of core networks, can be deployed in an authorized spectrum, and can also be deployed in an unauthorized spectrum. The access point can be flexibly deployed in places such as families, enterprises and the like to provide services for a small part of users. The access point serves fewer users and may be more stationary.

When an access point is deployed in an unlicensed spectrum, signaling and data can be transmitted only when the access point and User Equipment (UE) both need to detect that a channel is idle in a Listen Before Talk (LBT) manner. In order to realize transmission of large data volume, a mechanism of carrier aggregation may be adopted to configure multiple serving carriers for the UE. When the UE employs Carrier aggregation, the UE has a Primary cell (PCC) and a Secondary cell (SCC).

However, according to the existing protocol, Radio Resource Control (RRC) signaling can only be transmitted on PCC. If the UE has a measurement report to report, but the UE always detects the channel on the PCC unsuccessfully, the UE cannot send the measurement report in time. May cause a delay in handover and cause radio link failure of the UE. The same situation may occur for downlink signaling.

Disclosure of Invention

The technical problem solved by the invention is how to improve the efficiency of signaling transmission.

In order to solve the above technical problem, an embodiment of the present invention provides a signaling sending method, where the signaling sending method includes: when a signaling needs to be sent, the signaling is sent to at least one RLC entity in a plurality of RLC entities, a PDCP entity bearing the signaling is associated with the plurality of RLC entities, and the plurality of RLC entities respectively correspond to a plurality of cells in carrier aggregation; and mapping the signaling on a corresponding cell by using the at least one RLC entity, and sending out the signaling, wherein the cell corresponding to the at least one RLC entity is a main cell and a secondary cell.

Optionally, the number of the plurality of RLC entities is two or more, and the plurality of RLC entities respectively correspond to the primary cell and the at least one secondary cell.

Optionally, the sending the signaling to at least one RLC entity of the plurality of RLC entities includes: and sending the signaling to the plurality of RLC entities simultaneously.

Optionally, the mapping, by using the at least one RLC entity, the signaling on the corresponding cell to be sent includes: simultaneously carrying out LBT detection on the channel of the primary cell and the channel of the secondary cell; and sending the signaling by using the first cell which successfully detects that the channel is idle firstly, and informing the MAC layer or other RLC entities except the RLC entity corresponding to the first cell to delete the signaling.

Optionally, the notifying other RLC entities except the RLC entity corresponding to the MAC layer or the first cell to delete the signaling includes: notifying a MAC layer or the other RLC entities to delete the signaling while transmitting the signaling with the first cell; or, if the signaling is not sent out by the cell corresponding to the other RLC entity when the acknowledgement of the receiving end to the signaling is received, the MAC layer or the other RLC entity is notified to delete the signaling.

Optionally, the mapping, by using the at least one RLC entity, the signaling on the corresponding cell to be sent includes: preferentially carrying out LBT detection on the channel of the main cell; if the channel of the primary cell is not successfully detected to be idle within a preset time length, carrying out LBT detection on the channel of the secondary cell; and after successfully detecting that the channel of the secondary cell is idle, utilizing the secondary cell to send the signaling.

Optionally, the sending the signaling to at least one RLC entity of the plurality of RLC entities includes: sending the signaling to an RLC entity corresponding to the primary cell; performing LBT detection on a channel of the primary cell; and if the channel of the main cell is not successfully detected to be idle within the preset time, the signaling is sent to an RLC entity corresponding to the auxiliary cell.

Optionally, the mapping, by using the at least one RLC entity, the signaling on the corresponding cell to be sent includes: performing LBT detection on a channel of the secondary cell; and after successfully detecting that the channel of the secondary cell is idle, utilizing the secondary cell to send the signaling.

Optionally, the signaling is selected from uplink signaling and downlink signaling.

Optionally, the signaling is uplink signaling, and before the mapping the signaling on the corresponding cell by using the at least one RLC entity and sending out the signaling, the method further includes: and requesting the service base station or the service access point to schedule the uplink resource, and carrying out LBT detection on the channel before the time of the scheduled uplink resource.

Optionally, the signaling is downlink signaling, and before the mapping the signaling on the corresponding cell by using the at least one RLC entity and sending out the signaling, the method further includes: and carrying out LBT detection on the channel before the time of the scheduled downlink resource.

In order to solve the above technical problem, an embodiment of the present invention further discloses a signaling transmission apparatus, where the signaling transmission apparatus includes: a first sending module, configured to send a signaling to at least one RLC entity in a plurality of RLC entities when the signaling needs to be sent, where a PDCP entity carrying the signaling is associated with the plurality of RLC entities, and the plurality of RLC entities correspond to a plurality of cells in carrier aggregation, respectively; and a second sending module, configured to map the signaling onto a corresponding cell by using the at least one RLC entity, where the cell corresponding to the at least one RLC entity is a primary cell and a secondary cell.

In order to solve the above technical problem, an embodiment of the present invention further discloses a storage medium, on which a computer program is stored, and the computer program executes the steps of the image restoration method when being executed by a processor.

The embodiment of the invention also discloses base station equipment which comprises a memory and a processor, wherein the memory is stored with a computer program which can be operated on the processor, and the processor executes the steps of the signaling sending method when operating the computer program.

The embodiment of the invention also discloses user equipment which comprises a memory and a processor, wherein the memory is stored with a computer program which can be operated on the processor, and the processor executes the steps of the signaling sending method when operating the computer program.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

in the technical scheme of the invention, the signaling is sent to at least one RLC entity in the plurality of RLC entities, namely the PDCP entity bearing the signaling sends the signaling to the plurality of RLC entities related to the signaling, the cell corresponding to the at least one RLC entity is the main cell and the auxiliary cell, the signaling can be sent on the auxiliary cell, and further, the signaling can be ensured to be successfully sent out in time under the condition that the signaling is failed to be sent through the main cell, the signaling sending efficiency is improved, and the transmission delay is reduced.

Further, the first cell which successfully detects that the channel is idle first is used for sending the signaling, and the MAC layer or other RLC entities except the RLC entity corresponding to the first cell are notified to delete the signaling. The technical scheme of the invention can cancel the transmission of the same signaling on other cells in time after the signaling is successfully sent, thereby avoiding the repeated transmission of the same signaling on different carriers and further ensuring the efficiency of signaling transmission.

Drawings

Fig. 1 is a flowchart of a signaling method according to an embodiment of the present invention;

fig. 2 is a schematic flowchart of a signaling sending method according to an embodiment of the present invention;

fig. 3 is a schematic flowchart of another signaling sending method according to an embodiment of the present invention;

fig. 4 is a schematic flowchart of a signaling sending method according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of a signaling sending apparatus according to an embodiment of the present invention.

Detailed Description

As described in the background, Radio Resource Control (RRC) signaling can only be transmitted on the primary cell PCell in accordance with existing protocols. If the UE has a measurement report to report, but the UE always fails to detect the channel on the PCell, the UE cannot send the measurement report in time. May cause a delay in handover and cause radio link failure of the UE. The same situation may occur for downlink signaling.

The technical scheme of the invention can be applied to 5G (5Generation) communication systems, 4G and 3G communication systems, and various future new communication systems such as 6G and 7G.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a flowchart of a signaling method according to an embodiment of the present invention.

In the embodiment of the present invention, when the signaling to be sent is an uplink signaling, the signaling sending method may be used on the user equipment side, that is, the user equipment may execute each step of the method. The user device may be a variety of suitable terminal devices, such as a cell phone, a computer, a tablet computer, etc. When the signaling to be sent is downlink signaling, the signaling sending method may be used on the base station device side, that is, the base station device may execute each step of the method. The base station device may be a base station in a conventional communication network, or may also be an access point device capable of providing a base station function, and the like, which is not limited in this embodiment of the present invention.

Specifically, the signaling method may include the following steps:

step S101: when a signaling needs to be sent, the signaling is sent to at least one RLC entity in a plurality of RLC entities, a PDCP entity bearing the signaling is associated with the plurality of RLC entities, and the plurality of RLC entities respectively correspond to a plurality of cells in carrier aggregation;

step S102: and mapping the signaling on a corresponding cell by using the at least one RLC entity, and sending out the signaling, wherein the cell corresponding to the at least one RLC entity is a main cell and a secondary cell.

It should be noted that the sequence numbers of the steps in this embodiment do not represent a limitation on the execution sequence of the steps.

In this embodiment, a base station device is deployed in an unlicensed spectrum, a carrier aggregation mechanism is used to provide service for a UE, the base station device configures a Primary Cell (PCell) and at least one Secondary Cell (SCell) for the UE, and the UE also establishes a Signaling Radio Bearer (SRB) and a Data Radio Bearer (DRB). The base station equipment configures the SRB to be associated with a plurality of RLC entities. For example, the access point manages serving cells with two different frequency points, the access point may broadcast a system message and the like on only one carrier so that the UE may camp on, and when the UE has a service requirement to establish an RRC connection and enters a connected state, the access point may configure carrier aggregation for the UE.

In this embodiment, the base station device and the UE include a plurality of Radio Link Control (RLC) entities, where the plurality of RLC entities respectively correspond to a plurality of cells in carrier aggregation, that is, data in each RLC entity is transmitted by a cell corresponding to the RLC entity. For example, if the UE configures a primary cell and a secondary cell, the UE includes two RLC entities, which respectively correspond to the primary cell and the secondary cell; the UE configures one primary cell, two secondary cells SCell1, and SCell2, and then the UE includes three RLC entities corresponding to the primary cell, the secondary cell SCell1, and the SCell2, respectively.

It should be noted that the number of RLC entities may be set according to an actual application scenario, for example, when the number of RLC entities is two, one of the two RLC entities corresponds to the primary cell, and the other corresponds to at least one secondary cell; when the number of the RLC entities is more than two, one of the more than two RLC entities corresponds to the primary cell, and each of the remaining RLC entities corresponds to the secondary cell.

In addition, a Packet Data Convergence Protocol (PDCP) entity carrying the signaling is associated with the plurality of RLC entities, and then the PDCP entity may send the signaling to the plurality of RLC entities for processing, so as to obtain a plurality of identical signaling, and copy and duplicate the signaling.

In a specific implementation of step S101, signaling may be sent to all or some of the plurality of RLC entities. Specifically, only signaling may be sent to the RLC entity corresponding to the primary cell; the signaling may also be sent to the RLC entity corresponding to the primary cell and the RLC entity corresponding to the at least one secondary cell at the same time, or the signaling is sent to the RLC entity corresponding to the primary cell first, and after a period of time, the signaling is sent to the RLC entity corresponding to the at least one secondary cell.

In the specific implementation of step S102, the signaling is mapped and sent out on the corresponding cell. For example, if the signaling is sent to the RLC entity corresponding to the primary cell and the RLC entity corresponding to the at least one secondary cell, the signaling is sent through the primary cell and the at least one secondary cell.

For the receiving device, if duplicate signaling is received through different carriers, only one of the signaling may be retained, and the duplicate signaling may be deleted.

It should be understood by those skilled in the art that after being processed by the PDCP entity and the RLC entity, the signaling data packet needs to be processed by a Medium Access Control (MAC) layer, a physical layer, and the like before being sent out.

The embodiment of the invention can realize the sending of the signaling on the auxiliary cell, thereby ensuring that the signaling can be successfully sent out in time under the condition of failure in sending the signaling through the main cell, improving the efficiency of signaling sending and reducing the transmission delay.

In a non-limiting embodiment of the present invention, referring to fig. 2, the signaling method may include the following steps:

step S201: and sending the signaling to the plurality of RLC entities simultaneously.

For signaling that requires SCell transmission, that is, that requires PCell and SCell repeated transmission, signaling with higher importance, such as measurement report, may be specifically used. For the SRB needing to be copied, the PDCP entity sends signaling to multiple RLC entities at the same time, so that the repeated signaling can be transmitted through different carriers.

Step S202: and simultaneously carrying out LBT detection on the channel of the primary cell and the channel of the secondary cell.

Step S203: and sending the signaling by using the first cell which successfully detects that the channel is idle firstly, and informing the MAC layer or other RLC entities except the RLC entity corresponding to the first cell to delete the signaling.

In this embodiment, LBT detection is performed on the channel of the primary cell and the channel of the secondary cell at the same time, that is, whether the channel of the cell is idle is detected. If the channel is detected to be idle, namely the received power on the channel is detected to be lower than a preset threshold, the detection is successful, otherwise, the detection is failed. The time at which detection succeeds for different cells may be different, in which case, for timely signaling transmission, the first cell that successfully detects that the channel is idle first may be used to transmit the signaling.

In order to avoid repeated transmission of signaling, the MAC layer or other RLC entities except the RLC entity corresponding to the first cell may be notified to delete the signaling, that is, delete the signaling that is not sent.

Alternatively, if the channel of the primary cell and the channel of the secondary cell are successfully detected at the same time, the signaling may be sent by using the primary cell and the secondary cell. For example, the UE sends the same RRC signaling in two cells simultaneously, and the access point deletes one RRC signaling after discovering a duplicate RRC signaling. Or the cell with the best signal quality of the cell may be selected for sending the signaling.

It should be noted that, in the embodiment of the present invention, the two different times may be the same time or within a certain time error range, and the embodiment of the present invention is not limited to this.

In a specific implementation of step S203, the MAC layer or the other RLC entity may be notified to delete the signaling while the signaling is sent by using the first cell.

Or, if the signaling is not sent out by the cell corresponding to the other RLC entity when the acknowledgement of the receiving end to the signaling is received, the MAC layer or the other RLC entity is notified to delete the signaling. For example, the UE detects that the SCell acquires the usage right of the channel, the UE sends an uplink RRC signaling to the access point through the SCell, and if the same RRC signaling is not sent to the PCell before the UE receives the confirmation from the access point, the UE may notify an RLC entity associated with the PCell, delete the corresponding data packet, and terminate sending the data packet.

In a non-limiting embodiment of the present invention, referring to fig. 3, the signaling method may include the following steps:

step S301: and sending the signaling to the plurality of RLC entities simultaneously.

Step S302: and preferentially carrying out LBT detection on the channel of the primary cell.

Step S303: if the channel of the primary cell is not successfully detected to be idle within a preset time length, carrying out LBT detection on the channel of the secondary cell;

step S304: and after successfully detecting that the channel of the secondary cell is idle, utilizing the secondary cell to send the signaling.

Unlike the aforementioned embodiments in which LBT detection is performed on the channel of the primary cell and the channel of the secondary cell simultaneously, in the embodiments of the present invention, in steps S302 to S304, LBT detection is preferentially performed on the channel of the primary cell. And under the condition that the channel detection of the primary cell is unsuccessful, carrying out LBT detection on the channel of the secondary cell.

The technical scheme of the invention preferentially uses the main cell to send the signaling, and uses the auxiliary cell to send the signaling under the condition that the main cell fails to send the signaling, thereby avoiding the repeated sending of the signaling.

In a non-limiting embodiment of the present invention, referring to fig. 4, the signaling method may include the following steps:

step S401: and sending the signaling to an RLC entity corresponding to the primary cell.

Step S402: and carrying out LBT detection on the channel of the primary cell.

Step S403: and if the channel of the main cell is not successfully detected to be idle within the preset time, the signaling is sent to an RLC entity corresponding to the auxiliary cell.

Different from the embodiment shown in fig. 2 and fig. 3, which sends signaling to the plurality of RLC entities at the same time, the embodiment of the present invention first sends the signaling to the RLC entity corresponding to the primary cell. And under the condition that the channel of the main cell is not successfully detected to be idle within a preset time, sending a signaling to an RLC entity corresponding to the auxiliary cell.

Step S404: performing LBT detection on a channel of the secondary cell;

step S405: and after successfully detecting that the channel of the secondary cell is idle, utilizing the secondary cell to send the signaling.

In steps S404 and S405, signaling is attempted to be transmitted through the secondary cell. That is, LBT detection is performed on the channel of the secondary cell, and signaling is sent through the secondary cell after detection is successful.

In a specific embodiment, when the UE has uplink signaling to send, the UE may preferentially perform uplink transmission through the PCell. If the UE cannot acquire the uplink channel use right of the PCell due to the LBT within a period of time, the UE generates a backup of RRC signaling, namely copying a PDCP data packet of the RRC signaling, and attempting to transmit through the SCell.

In a specific application scenario of the present invention, the signaling is uplink signaling. Specifically, the RRC signaling may be uplink RRC signaling, for example, RRC signaling carrying a measurement report. The UE has a measurement report to be sent, the PDCP entity of the UE sends a signaling carrying the measurement report to a plurality of RLC entities, and a data packet to be sent is formed after the processing of an MAC layer and a physical layer. The UE requests uplink resources from the base station equipment, and after acquiring the scheduled uplink resources, LBT interception is carried out on uplink channels of all cells, and after successfully intercepting that the channels are idle, data packets are sent out.

In another specific application scenario of the present invention, the signaling is downlink signaling. Specifically, the RRC signaling may be downlink RRC signaling. Unlike the uplink transmission scenario, the base station device does not need to request downlink resources in the downlink scenario. For example, a downlink RRC signaling needs to be sent by the base station device, and the PDCP entity of the base station device sends the signaling carrying the measurement report to a plurality of RLC entities, and forms a data packet to be sent through processing by the MAC layer and the physical layer. The base station equipment carries out LBT interception on the downlink channels of all cells and sends out the data packets after successfully intercepting the channels.

Referring to fig. 5, an embodiment of the present invention further discloses a signaling sending apparatus 50, where the signaling sending apparatus 50 may include:

a first sending module 501, configured to send a signaling to at least one RLC entity in a plurality of RLC entities when the signaling needs to be sent, where a PDCP entity carrying the signaling is associated with the plurality of RLC entities, and the plurality of RLC entities correspond to a plurality of cells in carrier aggregation respectively;

a second sending module 502, configured to map the signaling onto a corresponding cell by using the at least one RLC entity, where the cell corresponding to the at least one RLC entity is a primary cell and a secondary cell.

For more contents of the operation principle and the operation mode of the signaling device 50, reference may be made to the relevant descriptions in fig. 1 to fig. 4, which are not described herein again.

The signaling device 50 (virtual device) may be, for example: a chip, or a chip module, etc.

Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.

The embodiment of the invention also discloses a storage medium which is a computer readable storage medium and stores a computer program, and the computer program can execute the steps of the method shown in fig. 1, 2 or 3 when running. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile memory (non-volatile) or a non-transitory memory (non-transient), and the like.

The embodiment of the invention also discloses user equipment which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when running the computer program, may perform the steps of the method shown in fig. 1, 2 or 3. The user equipment includes but is not limited to a mobile phone, a computer, a tablet computer and other terminal equipment.

The embodiment of the invention also discloses base station equipment which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when running the computer program, may perform the steps of the method shown in fig. 1, 2 or 3. The base station devices include, but are not limited to, base stations and access point devices.

The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, Vehicle-to-event architecture, and the like.

In this embodiment of the present application, the Core Network may be an evolved packet Core (EPC for short), a 5G Core Network (5G Core Network), or may be a novel Core Network in a future communication system. The 5G Core Network is composed of a set of devices, and implements Access and Mobility Management functions (AMF) of functions such as Mobility Management, User Plane Functions (UPF) providing functions such as packet routing and forwarding and qos (quality of service) Management, Session Management Functions (SMF) providing functions such as Session Management, IP address allocation and Management, and the like. The EPC may be composed of an MME providing functions such as mobility management, Gateway selection, etc., a Serving Gateway (S-GW) providing functions such as packet forwarding, etc., and a PDN Gateway (P-GW) providing functions such as terminal address allocation, rate control, etc.

A Base Station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, a device providing a base station function in a 2G network includes a Base Transceiver Station (BTS), a device providing a base station function in a 3G network includes a node b (nodeb), apparatuses for providing a base station function in a 4G network include evolved node bs (enbs), which, in a Wireless Local Area Network (WLAN), the devices providing the base station function are an Access Point (AP), a device gNB providing the base station function in a New Radio (NR) of 5G, and a node B (ng-eNB) continuing to evolve, the gNB and the terminal communicate with each other by adopting an NR (NR) technology, the ng-eNB and the terminal communicate with each other by adopting an E-UTRA (evolved Universal Terrestrial Radio Access) technology, and both the gNB and the ng-eNB can be connected to a 5G core network. The base station in the embodiment of the present application also includes a device and the like that provide a function of the base station in a future new communication system.

The base station controller in the embodiment of the present application is a device for managing a base station, for example, a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, or a device for controlling and managing a base station in a future new communication system.

The network on the network side in the embodiment of the present invention refers to a communication network providing communication services for a terminal, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on the core network side.

A terminal in this embodiment may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.

In the embodiment of the application, a unidirectional communication link from an access network to a terminal is defined as a downlink, data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.

The "plurality" appearing in the embodiments of the present application means two or more.

The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.

The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.

It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM), SDRAM (SLDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. 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 in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. 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, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for signaling, comprising:

when a signaling needs to be sent, the signaling is sent to at least one RLC entity in a plurality of RLC entities, a PDCP entity bearing the signaling is associated with the plurality of RLC entities, and the plurality of RLC entities respectively correspond to a plurality of cells in carrier aggregation;

and mapping the signaling on a corresponding cell by using the at least one RLC entity, and sending out the signaling, wherein the cell corresponding to the at least one RLC entity is a main cell and a secondary cell.

2. The signaling method of claim 1, wherein the number of the plurality of RLC entities is two or more, and the number of the plurality of RLC entities corresponds to the primary cell and the number of the at least one secondary cell.

3. The method of claim 1, wherein the sending the signaling to at least one of a plurality of RLC entities comprises:

and sending the signaling to the plurality of RLC entities simultaneously.

4. The method of claim 3, wherein the mapping the signaling on the corresponding cell by using the at least one RLC entity comprises:

simultaneously carrying out LBT detection on the channel of the primary cell and the channel of the secondary cell;

and sending the signaling by using the first cell which successfully detects that the channel is idle firstly, and informing the MAC layer or other RLC entities except the RLC entity corresponding to the first cell to delete the signaling.

5. The method according to claim 4, wherein the notifying the other RLC entities except the RLC entity corresponding to the MAC layer or the first cell to delete the signaling comprises: notifying a MAC layer or the other RLC entities to delete the signaling while transmitting the signaling with the first cell;

or, if the signaling is not sent out by the cell corresponding to the other RLC entity when the acknowledgement of the receiving end to the signaling is received, the MAC layer or the other RLC entity is notified to delete the signaling.

6. The method of claim 3, wherein the mapping the signaling on the corresponding cell by using the at least one RLC entity comprises:

preferentially carrying out LBT detection on the channel of the main cell;

if the channel of the primary cell is not successfully detected to be idle within a preset time length, carrying out LBT detection on the channel of the secondary cell;

and after successfully detecting that the channel of the secondary cell is idle, utilizing the secondary cell to send the signaling.

7. The method of claim 1, wherein the sending the signaling to at least one of a plurality of RLC entities comprises:

sending the signaling to an RLC entity corresponding to the primary cell;

performing LBT detection on a channel of the primary cell;

and if the channel of the main cell is not successfully detected to be idle within the preset time, the signaling is sent to an RLC entity corresponding to the auxiliary cell.

8. The method of claim 7, wherein the mapping the signaling on the corresponding cell by using the at least one RLC entity comprises:

performing LBT detection on a channel of the secondary cell;

9. The method of claim 1, wherein the signaling is selected from uplink signaling and downlink signaling.

10. The method of claim 9, wherein the signaling is uplink signaling, and before the mapping the signaling on the corresponding cell by using the at least one RLC entity and sending the signaling, the method further comprises:

and requesting the service base station or the service access point to schedule the uplink resource, and carrying out LBT detection on the channel before the time of the scheduled uplink resource.

11. The method of claim 9, wherein the signaling is downlink signaling, and before the mapping the signaling on the corresponding cell by using the at least one RLC entity and sending the signaling, the method further comprises:

and carrying out LBT detection on the channel before the time of the scheduled downlink resource.

12. A signaling apparatus, comprising:

a first sending module, configured to send a signaling to at least one RLC entity in a plurality of RLC entities when the signaling needs to be sent, where a PDCP entity carrying the signaling is associated with the plurality of RLC entities, and the plurality of RLC entities correspond to a plurality of cells in carrier aggregation, respectively;

and a second sending module, configured to map the signaling onto a corresponding cell by using the at least one RLC entity, where the cell corresponding to the at least one RLC entity is a primary cell and a secondary cell.

13. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the signaling method according to any of claims 1 to 11.

14. A base station device comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor executes the computer program to perform the steps of the signaling method according to any of claims 1 to 9 and 11.

15. A user equipment comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the signaling method according to any of claims 1 to 10.