Carrier aggregation method, device, communication equipment and storage medium

Abstract

The embodiment of the present application discloses a carrier aggregation method, apparatus, communication device and storage medium. The carrier aggregation method includes: determining a primary carrier for performing carrier aggregation on an unlicensed frequency band; and triggering execution of carrier aggregation on the primary carrier.

Description

[0001] This case is a divisional application of the Chinese application with application number 201980000956.2 and filing date of May 24, 2019. Technical Field

[0002] The present application relates to the field of wireless communications but is not limited to the field of wireless communications, and in particular to a carrier aggregation method, apparatus, communication equipment and storage medium. Background Art

[0003] In the field of wireless communication technology, carrier aggregation technology has been introduced to improve transmission rate and communication capacity. The transmission rate and communication capacity of the system can be improved by aggregating transmission of multiple carriers. However, in the related carrier aggregation technology, there are problems such as poor effect of carrier aggregation or inability to implement carrier aggregation. Summary of the invention

[0004] The embodiments of the present application disclose a carrier aggregation method, apparatus, communication device and storage medium.

[0005] At least one embodiment of the present application provides a carrier aggregation method, including:

[0006] Determine a primary carrier for carrier aggregation in an unlicensed frequency band;

[0007] The execution of carrier aggregation is triggered on the primary carrier.

[0008] In at least one embodiment of the present application, determining a primary carrier for performing carrier aggregation in an unlicensed frequency band includes:

[0009] The primary carrier for performing carrier aggregation on the unlicensed frequency band is determined according to the pre-configured carrier information.

[0010] In at least one embodiment of the present application, the method further includes:

[0011] performing channel detection on the primary carrier;

[0012] or,

[0013] Channel detection is performed on the primary carrier and the secondary carrier.

[0014] In at least one embodiment of the present application, triggering execution of carrier aggregation on the primary carrier includes:

[0015] When it is detected that the primary carrier is idle, execution of carrier aggregation is triggered on the primary carrier.

[0016] In at least one embodiment of the present application, the method further includes:

[0017] When the transmitting end is a terminal, the terminal reports the detection result of performing channel detection to the base station;

[0018] The triggering execution of carrier aggregation on the primary carrier includes:

[0019] On the primary carrier, an execution instruction for triggering carrier aggregation sent by the base station based on the detection result is received.

[0020] In at least one embodiment of the present application, the method further includes:

[0021] When the transmitting end is a terminal, the terminal receives the carrier information sent by the base station;

[0022] The determining a primary carrier for performing carrier aggregation in an unlicensed frequency band includes:

[0023] The terminal determines, according to the carrier information indicated by the carrier information, the primary carrier for performing carrier aggregation in the unlicensed frequency band.

[0024] In at least one embodiment of the present application, the method further includes:

[0025] reporting the carrier aggregation capability information of the terminal to the base station,

[0026] The carrier information of the carrier aggregation sent by the receiving base station includes:

[0027] The carrier information sent by the receiving base station based on the carrier aggregation capability information.

[0028] In at least one embodiment of the present application, the carrier aggregation capability information is used to indicate at least one of the following:

[0029] Whether the terminal supports carrier aggregation on an unlicensed frequency band;

[0030] The maximum number of carrier aggregations supported by the terminal.

[0031] In at least one embodiment of the present application, determining a primary carrier for performing carrier aggregation in an unlicensed frequency band includes:

[0032] The main carrier is determined according to the dynamically determined carrier information.

[0033] In at least one embodiment of the present application, the method further includes:

[0034] When the transmitting end is a base station, the base station performs channel detection on the carrier of the unlicensed frequency band;

[0035] The base station uses the idle carrier detected earliest as the main carrier indicated by the dynamically determined carrier information.

[0036] In at least one embodiment of the present application, triggering execution of carrier aggregation on the primary carrier includes:

[0037] After the primary carrier is determined, an execution instruction for triggering carrier aggregation is sent to the terminal on the primary carrier.

[0038] In at least one embodiment of the present application, the method further includes:

[0039] When the transmitting end is a terminal, the terminal performs channel detection on the carrier of the unlicensed frequency band to obtain a detection result;

[0040] The detection result is reported to a base station, wherein the detection result is used by the base station to determine the primary carrier.

[0041] In at least one embodiment of the present application, the carrier information is used to indicate at least one of the following:

[0042] Main carrier;

[0043] Carrier bandwidth;

[0044] The frequency of the main carrier;

[0045] The frequency of the subcarrier.

[0046] At least one embodiment of the present application provides a carrier aggregation device, including:

[0047] A first determination module is configured to determine a primary carrier for performing carrier aggregation in an unlicensed frequency band;

[0048] The triggering module is configured to trigger execution of carrier aggregation on the primary carrier.

[0049] In at least one embodiment of the present application, the determining module is specifically configured to determine the primary carrier for performing carrier aggregation on the unlicensed frequency band according to pre-configured carrier information.

[0050] In at least one embodiment of the present application, the device further includes:

[0051] A first detection module, configured to perform channel detection on the primary carrier;

[0052] or,

[0053] The second detection module is configured to perform channel detection on the primary carrier and the secondary carrier.

[0054] In at least one embodiment of the present application, the trigger module is configured to trigger execution of carrier aggregation on the primary carrier when detecting that the primary carrier is idle.

[0055] In at least one embodiment of the present application, the device further includes:

[0056] A first reporting module, configured to, when the transmitting end is a terminal, report the detection result of the channel detection performed by the terminal to the base station;

[0057] The trigger module is configured to receive, on the primary carrier, an execution instruction for triggering carrier aggregation sent by the base station based on the detection result.

[0058] In at least one embodiment of the present application, the device further includes:

[0059] A first receiving module is configured to, when the transmitting end is a terminal, receive the carrier information sent by the base station;

[0060] The trigger module is configured to enable the terminal to determine the primary carrier for performing carrier aggregation on the unlicensed frequency band according to the carrier information indicated by the carrier information.

[0061] In at least one embodiment of the present application, the device further includes:

[0062] A second reporting module is configured to report the carrier aggregation capability information of the terminal to the base station,

[0063] The first receiving module is configured to receive the carrier information sent by the base station based on the carrier aggregation capability information.

[0064] In at least one embodiment of the present application, the carrier aggregation capability information is used to indicate at least one of the following:

[0065] Whether the terminal supports carrier aggregation on an unlicensed frequency band;

[0066] The maximum number of carrier aggregations supported by the terminal.

[0067] In at least one embodiment of the present application, the first determination module is configured to determine the primary carrier according to dynamically determined carrier information.

[0068] In at least one embodiment of the present application, the device further includes:

[0069] A third detection module is configured to, when the transmitting end is a base station, perform channel detection on the carrier of the unlicensed frequency band by the base station;

[0070] The second determining module is configured to enable the base station to use the idle carrier detected earliest as the main carrier indicated by the dynamically determined carrier information.

[0071] In at least one embodiment of the present application, the trigger module is configured to send an execution instruction for triggering carrier aggregation to the terminal on the primary carrier after determining the primary carrier.

[0072] In at least one embodiment of the present application, the device further includes:

[0073] a fourth detection module, configured to, when the transmitting end is a terminal, perform channel detection on the carrier of the unlicensed frequency band by the terminal to obtain a detection result;

[0074] The third reporting module is configured to report the detection result to the base station, wherein the detection result is used by the base station to determine the primary carrier.

[0075] In at least one embodiment of the present application, the carrier information is used to indicate at least one of the following:

[0076] Main carrier;

[0077] Carrier bandwidth;

[0078] The frequency of the main carrier;

[0079] The frequency of the subcarrier.

[0080] At least one embodiment of the present application provides a communication device, including:

[0081] antenna;

[0082] Memory;

[0083] The processor is connected to the antenna and the memory respectively, and is used to control the antenna to send and receive wireless signals by executing an executable program stored in the memory, and can execute the steps of the carrier aggregation method provided in any of the above embodiments.

[0084] At least one embodiment of the present application provides a non-transitory computer-readable storage medium, which stores an executable program, wherein when the executable program is executed by a processor, the steps of the carrier aggregation method provided in any of the aforementioned embodiments are implemented.

[0085] The technical solution provided by the embodiment of the present application is that the carrier aggregation of the embodiment of the present application is performed on the unlicensed frequency band, rather than being limited to the licensed frequency band. In this way, compared with the carrier aggregation based on the licensed carrier, it is equivalent to expanding the frequency band for carrier aggregation, reducing the problem of fewer frequency bands used for carrier aggregation due to being limited to the licensed frequency band, which leads to fewer opportunities for carrier aggregation and a high failure rate. At the same time, the embodiment of the present application also standardizes the way to perform carrier aggregation on the unlicensed frequency band, and the execution of carrier aggregation is triggered by the instruction or notification transmitted on the main carrier. In this way, once the main carrier is determined, the instruction on whether to perform carrier aggregation can be obtained in time by monitoring the main carrier, reducing the problem of poor reception effect caused by the transmission method due to the failure to transmit the notification or instruction of carrier aggregation in time; and improving the effect of data transmission using carrier aggregation technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0087] Figure 1 A schematic diagram of the structure of a wireless communication system provided in an embodiment of the present application;

[0088] Figure 2 A schematic diagram of a flow chart of a carrier aggregation method provided in an embodiment of the present application;

[0089] Figure 3 A schematic diagram of intra-band continuous carrier aggregation provided by an embodiment of the present application;

[0090] Figure 4 A schematic diagram of an intra-band non-contiguous carrier aggregation provided in an embodiment of the present application;

[0091] Figure 5 A usage diagram of inter-band carrier aggregation provided in an embodiment of the present application;

[0092] Figure 6 A schematic diagram of a flow chart of another carrier aggregation method provided in an embodiment of the present application;

[0093] Figure 7 A schematic diagram of the structure of a carrier aggregation device provided in an embodiment of the present application;

[0094] Figure 8 A schematic diagram of channel detection of a pre-configured carrier aggregation relationship provided in an embodiment of the present application;

[0095] Fig. 9 A schematic diagram of channel detection of a pre-dynamically determined carrier aggregation relationship provided in an embodiment of the present application;

[0096] Fig.10 A schematic diagram of a bandwidth of a carrier provided in an embodiment of the present application;

[0097] Fig.11 A schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0098] Fig.12 A schematic diagram of the structure of a base station provided in an embodiment of the present application. DETAILED DESCRIPTION

[0099] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0100] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "said" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0101] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at" or "when" or "in response to determination".

[0102] Please refer to Figure 1 , which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. Figure 1 As shown, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of terminals 11 and a plurality of base stations 12 .

[0103] Among them, the terminal 11 can be a device that provides voice and / or data connectivity to the user. The terminal 11 can communicate with one or more core networks via a radio access network (RAN). The terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an Internet of Things terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Alternatively, the terminal 11 can also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 can also be a vehicle-mounted device, for example, it can be a driving computer with wireless communication function, or a wireless communication device connected to an external driving computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street lamp, a traffic light or other roadside device with a wireless communication function.

[0104] The base station 12 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be the next generation system of the 5G system. The access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0105] Among them, the base station 12 can be an evolved base station (eNB) adopted in the 4G system. Alternatively, the base station 12 can also be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (Physical, PHY) layer protocol stack. The specific implementation method of the base station 12 is not limited in the embodiment of the present disclosure.

[0106] A wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0107] In some embodiments, E2E (End to End) connections may also be established between the terminals 11, such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle to everything (V2X) communication.

[0108] In some embodiments, the wireless communication system may further include a network management device 13 .

[0109] Several base stations 12 are respectively connected to a network management device 13. The network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber network side device (HSS). The embodiment of the present disclosure does not limit the implementation form of the network management device 13.

[0110] like Figure 2 As shown, an embodiment of the present application provides a carrier aggregation method, including:

[0111] Step S101: determining a primary carrier for performing carrier aggregation in an unlicensed frequency band;

[0112] Step S102: triggering execution of carrier aggregation on the primary carrier.

[0113] In this embodiment, a carrier aggregation method is provided, and the carrier aggregation method is applied to various communication devices. Specifically, for example, the carrier aggregation method is applied to a transmitting end that needs to use carrier aggregation technology to send data.

[0114] When performing carrier aggregation, the aggregated carriers can be divided into: a primary carrier and a secondary carrier.

[0115] The primary carrier is relative to the secondary carrier. In addition to being used to transmit data, the primary carrier also transmits control signaling related to carrier aggregation, such as control signaling for controlling the start and end of carrier aggregation, and control instructions for scheduling data transmission on the secondary carrier. The control signaling may also include: other carrier aggregation parameters for controlling carrier aggregation, for example, the carrier aggregation parameters are used to indicate at least one of the following but not limited to: the frame format and subframe format used when transmitting data using carrier aggregation technology. For another example, the control instructions related to carrier aggregation may also include: control instructions for instructing the terminal to perform channel detection on the secondary carrier.

[0116] In some other embodiments, the primary carrier may also be used to transmit other control signaling not related to carrier aggregation.

[0117] In some embodiments, the main carrier may also be used to transmit feedback information. For example, the main carrier may also be used to transmit hybrid automatic repeat request (HAR Q) feedback of data transmitted by carrier aggregation; the HARQ feedback includes HARQ feedback of data transmitted by the main carrier, and / or HARQ feedback of data transmitted by the secondary carrier. The HARQ feedback includes but is not limited to: an acknowledgment character (ACK) indicating successful data transmission and / or a non-acknowledgement character (NACK) indicating failed data transmission.

[0118] The secondary carrier may also be referred to as an auxiliary carrier. In this embodiment, the secondary carrier mainly assists the transmission of the primary carrier.

[0119] In this embodiment, the frequency band used for carrier aggregation is an unlicensed frequency band. The primary carrier and at least one secondary carrier used for carrier aggregation are both from the unlicensed frequency band.

[0120] In this embodiment, the carrier aggregation on the unlicensed frequency band can be divided into: dual carrier aggregation and multi-carrier aggregation according to the number of carrier aggregations, and multi-carrier aggregation implements the aggregation of more than two carriers. For example, dual carrier aggregation will use one main carrier and one secondary carrier; while multi-carrier aggregation will use one main carrier and two or more secondary carriers.

[0121] In this embodiment, the carrier aggregation on the unlicensed frequency band may include, according to the frequency distribution of aggregated carriers:

[0122] Contiguous carrier aggregation within the same frequency band in unlicensed bands;

[0123] Non-contiguous carrier aggregation within the same frequency band in unlicensed bands;

[0124] Inter-band carrier aggregation of different frequency bands in unlicensed bands.

[0125] refer to Figure 3 As shown, carrier 1 and carrier 2 are carriers from the same frequency band of the unlicensed frequency band and have continuous frequency points, which is a continuous carrier aggregation within the frequency band.

[0126] refer to Figure 4 As shown, carrier 1 and carrier 2 are carriers with discontinuous frequencies from the same frequency band of the unlicensed frequency band, which is a discontinuous carrier aggregation within the frequency band.

[0127] refer to Figure 5As shown, carrier 1 and carrier 2 are carriers from different frequency bands in the unlicensed frequency band, which is an inter-band carrier aggregation. Since carrier 1 and carrier 2 are from different frequency bands, the frequency point ranges corresponding to different frequency bands are different, so carrier 1 and carrier 2 are another non-continuous carrier aggregation.

[0128] In this embodiment, the control signaling transmitted on the primary carrier may further include: indication information such as the number of carriers in carrier aggregation and / or the frequency of the carriers.

[0129] The unlicensed frequency band can be considered as a public frequency band, and the communication device uses the unlicensed frequency band for data transmission based on a competition mechanism. Before using the unlicensed frequency band, the unlicensed frequency band can be monitored using a channel detection technology, and competition for the unlicensed frequency band can be performed based on the monitoring results.

[0130] For example, the following unlicensed frequency bands exist in 5G New Radio (NR): 5G NR technology includes LWA (LTE-WLAN aggregation, LTE-WiFi link aggregation), LTE-U (LTE unlicensed, unlicensed frequency band LTE), LAA (licensed-assisted access) and other frequency bands.

[0131] In this embodiment, before performing the carrier aggregation operation, a primary carrier is first determined.

[0132] The execution of carrier aggregation is then triggered on the primary carrier.

[0133] The step S102 may include: sending a notification or instruction for performing carrier aggregation on the primary carrier, so that both the transmitting and receiving ends know that carrier aggregation transmission is currently started.

[0134] The carrier aggregation in the embodiment of the present application is performed on an unlicensed frequency band rather than being limited to an authorized frequency band. This is equivalent to expanding the frequency band for carrier aggregation, reducing the problem of fewer frequency bands used for carrier aggregation and higher failure rates due to being limited to the authorized frequency band. At the same time, the embodiment of the present application also standardizes the method for performing carrier aggregation on an unlicensed frequency band. The execution of carrier aggregation is triggered by instructions or notifications transmitted on the main carrier. In this way, once the main carrier is determined, the instruction on whether to perform carrier aggregation can be obtained in a timely manner by monitoring the main carrier, thereby reducing the problem of poor reception caused by the transmission method due to the failure to transmit notifications or instructions of carrier aggregation in a timely manner; and improving the effect of data transmission using carrier aggregation technology.

[0135] In some embodiments, step S101 may include:

[0136] The primary carrier for performing carrier aggregation on the unlicensed frequency band is determined according to the pre-configured carrier information.

[0137] In this embodiment, the network side equipment such as the base station can pre-configure the carrier information for performing carrier aggregation, and the carrier information includes the carrier identifier of the primary carrier, etc. Therefore, in this embodiment, the transmitting end can determine the primary carrier for performing carrier aggregation on the unlicensed frequency band according to the pre-configured carrier information.

[0138] For example, the base station may pre-configure the carrier information that the terminal can use for carrier aggregation. In this way, the terminal can know the main carrier of the carrier aggregation in the unlicensed frequency band according to the carrier information.

[0139] For example, after completing the configuration of the carrier information, the base station will use the authorized frequency band or the unauthorized frequency band to send it to the terminal. Specifically, the base station will use physical layer signaling or high-level signaling to send the carrier information to the terminal. The physical layer signaling includes but is not limited to: downlink control information (Downlink Control Information, DCI) issued using the physical downlink control channel (Physical Downlink Control Channel, PDCCH), etc. The high-level signaling includes but is not limited to medium access control layer (Medium Access Control, MAC) signaling or radio resource control (Radio Resource Control, RRC) signaling.

[0140] The carrier information is carried by various control signalings on the licensed frequency band or the unlicensed frequency band and is sent to the terminal, so that the terminal can easily determine the main carrier for performing carrier aggregation on the unlicensed frequency band according to the carrier information.

[0141] The signaling by which the base station sends the carrier information may include: broadcast signaling, multicast signaling or unicast signaling.

[0142] In this embodiment, the carrier information includes: information indicating a carrier aggregation relationship of carrier aggregation. The carrier aggregation relationship can be used to at least characterize a primary carrier and a secondary carrier of the carrier aggregation.

[0143] In some embodiments, the method further comprises:

[0144] performing channel detection on the primary carrier;

[0145] or,

[0146] Channel detection is performed on the primary carrier and the secondary carrier.

[0147] In this embodiment, before determining the carrier aggregation, channel detection of the carriers may be performed.

[0148] Specifically, channel detection is performed on the primary carrier, for example, channel sensing is performed on the primary carrier.

[0149] In one embodiment, channel detection is performed on the primary carrier, and channel detection is not performed on the secondary carrier; when it is detected that the primary carrier is idle, if a carrier aggregation operation needs to be performed, a carrier aggregation operation can be triggered on the primary carrier; then step S102 is executed to trigger the execution of carrier aggregation.

[0150] In another embodiment, the end performing channel detection may perform channel detection on the main carrier and at least one subcarrier. For example, channel detection may be performed on the main carrier and all subcarriers. For another example, channel detection may be performed on the main carrier and some subcarriers.

[0151] After the channel detection is completed, carrier aggregation parameters related to carrier aggregation, such as whether to perform carrier aggregation and the time to perform carrier aggregation, will be determined according to the detection result of the channel detection.

[0152] In some embodiments, step S102 may include:

[0153] When it is detected that the primary carrier is idle, execution of carrier aggregation is triggered on the primary carrier.

[0154] In this embodiment, when the primary carrier passes the channel detection (for example, the primary carrier is idle at the current moment), the execution of carrier aggregation is triggered on the primary carrier, and the triggering of the execution of carrier aggregation here includes: sending a notification and an instruction to execute carrier aggregation.

[0155] In some embodiments, the method further comprises:

[0156] When the transmitting end is a terminal, the terminal reports the detection result of performing channel detection to the base station;

[0157] The step S102 includes:

[0158] On the primary carrier, an execution instruction for triggering carrier aggregation sent by the base station based on the detection result is received.

[0159] In this embodiment, if the transmitting end having data to be sent is a terminal, the terminal reports the detection result of channel detection performed on the main carrier to the base station, or the terminal reports the detection result of channel detection performed on both the main carrier and the secondary carrier to the base station.

[0160] In this way, after receiving the detection result, the base station will decide whether to perform carrier aggregation and / or determine the carrier aggregation parameters for performing carrier aggregation. The carrier aggregation parameters include: carrier aggregation time parameters, carrier aggregation frequency parameters, carrier aggregation number, carrier aggregation mode parameters, etc.

[0161] When performing carrier aggregation, the terminal will receive an execution instruction for triggering the execution of carrier aggregation sent by the base station on the primary carrier.

[0162] After receiving the execution instruction, the terminal may activate the carrier aggregation function according to the execution instruction and / or the carrier information for performing carrier aggregation.

[0163] In some embodiments, the method further comprises:

[0164] When the transmitting end is a terminal, the terminal receives the carrier information sent by the base station;

[0165] The step S101 may include:

[0166] The terminal determines, according to the carrier information indicated by the carrier information, the primary carrier for performing carrier aggregation in the unlicensed frequency band.

[0167] If the sending end is a terminal, the terminal will receive the carrier information sent by the base station. The carrier information may be carried in various signaling or messages sent by the base station. For example, the carrier information may be carried in the broadcast information, multicast message or unicast information of the authorized frequency band provided in the aforementioned embodiment.

[0168] In this way, the terminal determines the primary carrier for performing carrier aggregation in the unlicensed frequency band according to the carrier information received from the base station in step S101.

[0169] In some embodiments, Figure 6 As shown, the method also includes:

[0170] reporting the carrier aggregation capability information of the terminal to the base station,

[0171] The carrier information of the carrier aggregation sent by the receiving base station includes:

[0172] The carrier information sent by the receiving base station based on the carrier aggregation capability information.

[0173] The terminal will also send its own carrier aggregation capability information to the base station in advance, so that the base station can determine whether to allow the terminal to perform carrier aggregation and / or how to perform carrier aggregation.

[0174] In some embodiments, the terminal may report the carrier aggregation capability information to the base station on the licensed frequency band or the unlicensed frequency band. Specifically, the terminal may report the carrier aggregation capability information through the uplink channel of the licensed frequency band, specifically, the carrier aggregation capability information may be reported through the physical uplink control channel (Physical Uplink Control Channel, PUCCH) of the licensed frequency band.

[0175] In some embodiments, the terminal reports the carrier aggregation capability information during the process of establishing an RRC connection with the base station. Specifically, the base station sends an RRC connection establishment message; after receiving the RRC connection establishment message, the terminal returns a base station RRC connection establishment completion message to the base station; the RRC connection establishment completion message may carry the carrier aggregation capability information, so that during the process of the terminal and the base station completing the RRC connection establishment, the carrier aggregation capability information is reported synchronously; in this way, there is no need to introduce additional signaling to report the carrier aggregation capability information.

[0176] In other embodiments, the terminal may actively report the carrier aggregation capability information after completing the RRC connection establishment with the base station.

[0177] In some other embodiments, during the RRC connection reestablishment process of the terminal with the base station, the carrier aggregation capability information may be carried in an RRC connection reconfiguration complete message and sent together to be reported to the base station.

[0178] After receiving the carrier aggregation capability information, the base station will configure according to the carrier aggregation capability information of the terminal to adapt to the carrier aggregation capability of the terminal, thereby reducing the carrier aggregation failure caused by the configured carrier information not matching the carrier aggregation capability of the terminal.

[0179] In some embodiments, the carrier aggregation capability information is used to indicate at least one of the following:

[0180] Whether the terminal supports carrier aggregation on an unlicensed frequency band;

[0181] The maximum number of carrier aggregations supported by the terminal.

[0182] In some embodiments, the carrier aggregation capability information may also be used to indicate: whether the terminal supports carrier aggregation on a licensed frequency band; or whether the terminal supports carrier aggregation.

[0183] Steps S101 to S102 are performed only when the terminal supports carrier aggregation in the unlicensed frequency band.

[0184] The maximum number of carrier aggregations supported by the terminal. For example, some terminals only support dual carrier aggregation, while some terminals can support two or more carrier aggregations.

[0185] When configuring carrier information of carrier aggregation for a terminal, the number of carriers of the carrier aggregation indicated by the carrier information does not exceed the maximum number of carrier aggregation supported by the terminal.

[0186] In some embodiments, the carrier aggregation capability information may also be used to indicate the frequency spacing between carriers of the carrier aggregation supported by the terminal.

[0187] In some embodiments, the step S101 may include: determining the primary carrier according to dynamically determined carrier information.

[0188] In the above-mentioned embodiment, the carrier information is pre-configured. In this embodiment, the carrier information may be dynamically determined.

[0189] In this way, in step S101, the primary carrier may be determined according to the dynamically determined carrier information.

[0190] Specifically, at least one or more carriers in the unlicensed frequency band are subjected to channel detection, and when at least one carrier is detected to be idle, the earliest detected idle carrier can be used as the main carrier of the carrier aggregation. After the main carrier is determined, the carrier identifier of the carrier is written into the carrier information as the main carrier identifier.

[0191] In this embodiment, the carrier information for carrier aggregation is dynamically determined, which is equivalent to dynamically determining the main carrier for carrier aggregation; in this way, the relevant information of carrier aggregation can be flexibly configured dynamically according to the idle and busy conditions of the carriers on the unlicensed frequency band; compared with static configuration, the number of operations and the success rate of carrier aggregation can be increased.

[0192] In some embodiments, the method further comprises:

[0193] When the transmitting end is a base station, the base station performs channel detection on the carrier of the unlicensed frequency band;

[0194] The base station uses the idle carrier detected earliest as the main carrier indicated by the dynamically determined carrier information.

[0195] If the base station performs channel detection, the base station will perform channel detection on multiple carriers in the unlicensed frequency band, and then use the earliest detected idle carrier as the main carrier, and generate and determine the carrier information according to the determined main carrier.

[0196] In this embodiment, the earliest detected idle carrier is used as the primary carrier, which can realize carrier aggregation as quickly as possible, reduce the delay of carrier aggregation, and reduce the phenomenon of low transmission efficiency caused by the late start time of carrier aggregation. In some embodiments, the step S102 may include: after determining the primary carrier, sending an execution instruction to trigger the execution of carrier aggregation to the terminal on the primary carrier.

[0197] After determining the primary carrier, if it is determined that carrier aggregation needs to be performed, the base station will send an execution instruction for triggering the execution of carrier aggregation to the terminal on the primary carrier, so that the terminal will perform the operation of carrier aggregation after receiving the execution instruction.

[0198] In some embodiments, the method further comprises:

[0199] When the transmitting end is a terminal, the terminal performs channel detection on the carrier of the unlicensed frequency band to obtain a detection result;

[0200] The detection result is reported to a base station, wherein the detection result is used by the base station to determine the primary carrier.

[0201] When the transmitting end is a terminal, the terminal will perform channel detection on the carrier of the unlicensed frequency band, obtain the detection result, and report the detection result to the base station. The base station will finally determine the selection of the main carrier and / or decide whether to perform carrier aggregation.

[0202] Specifically, the base station will dynamically determine the carrier information according to the detection result.

[0203] In this embodiment of the present application, the carrier information is used to indicate at least one of the following:

[0204] Main carrier;

[0205] Carrier bandwidth;

[0206] The frequency of the main carrier;

[0207] The frequency of the subcarrier.

[0208] The carrier information may include: a carrier identifier indicating the primary carrier; bandwidth information indicating a carrier bandwidth; frequency information indicating a frequency corresponding to the primary carrier and / or secondary carrier, and the like.

[0209] In some cases, the maximum bandwidth of a carrier is 20 MHz; in some cases, the maximum bandwidth of a carrier can reach 80 MHz. Fig.10 What is shown is a carrier with a bandwidth of 80 MHz, which is divided into four bandwidth parts, namely bandwidth part 1, bandwidth part 2, bandwidth part 3 and bandwidth part 4, wherein each bandwidth part is 20 MHz.

[0210] like Figure 7 As shown, this embodiment provides a carrier aggregation device, including:

[0211] A first determination module 71 is configured to determine a primary carrier for performing carrier aggregation in an unlicensed frequency band;

[0212] The triggering module 72 is configured to trigger execution of carrier aggregation on the primary carrier.

[0213] In this embodiment, the first determination module 71 and the trigger module 72 may be program modules. After the program modules are executed by the processor, the determination of the primary carrier and the execution of the operation of performing carrier aggregation can be realized.

[0214] In some other embodiments, the first determination module 71 and the trigger module 72 may be soft-hard combination modules; the soft-hard combination modules may be various programmable arrays; the programmable arrays include but are not limited to complex programmable arrays and field programmable arrays.

[0215] In some other embodiments, the first determination module 71 and the trigger module 72 may be pure hardware modules; the pure hardware modules include but are not limited to application-specific integrated circuits.

[0216] In some embodiments, the determining module is specifically configured to determine the primary carrier for performing carrier aggregation on the unlicensed frequency band according to pre-configured carrier information.

[0217] In some embodiments, the apparatus further comprises:

[0218] A first detection module, configured to perform channel detection on the primary carrier;

[0219] or,

[0220] The second detection module is configured to perform channel detection on the primary carrier and the secondary carrier.

[0221] In some other embodiments, the trigger module 72 is configured to trigger execution of carrier aggregation on the primary carrier when detecting that the primary carrier is idle.

[0222] In some other embodiments, the apparatus further comprises:

[0223] A first reporting module, configured to, when the transmitting end is a terminal, report the detection result of the channel detection performed by the terminal to the base station;

[0224] The trigger module 72 is configured to receive, on the primary carrier, an execution instruction for triggering carrier aggregation sent by the base station based on the detection result.

[0225] In some other embodiments, the apparatus further comprises:

[0226] A first receiving module, configured to, when the transmitting end is a terminal, receive the carrier information sent by the base station;

[0227] The trigger module 72 is configured to enable the terminal to determine the primary carrier for performing carrier aggregation on the unlicensed frequency band according to the carrier information indicated by the carrier information.

[0228] In some other embodiments, the apparatus further comprises:

[0229] A second reporting module is configured to report the carrier aggregation capability information of the terminal to the base station,

[0230] The first receiving module is configured to receive the carrier information sent by the base station based on the carrier aggregation capability information.

[0231] In some other embodiments, the carrier aggregation capability information is used to indicate at least one of the following:

[0232] Whether the terminal supports carrier aggregation on an unlicensed frequency band;

[0233] The maximum number of carrier aggregations supported by the terminal.

[0234] In some other embodiments, the first determination module 71 is configured to determine the primary carrier according to dynamically determined carrier information.

[0235] In some other embodiments, the apparatus further comprises:

[0236] A third detection module is configured to, when the transmitting end is a base station, perform channel detection on the carrier of the unlicensed frequency band by the base station;

[0237] The second determining module is configured to enable the base station to use the idle carrier detected earliest as the main carrier indicated by the dynamically determined carrier information.

[0238] In some other embodiments, the trigger module 72 is configured to send an execution instruction for triggering carrier aggregation to the terminal on the primary carrier after determining the primary carrier.

[0239] In some other embodiments, the apparatus further comprises:

[0240] a fourth detection module, configured to, when the transmitting end is a terminal, perform channel detection on the carrier of the unlicensed frequency band by the terminal to obtain a detection result;

[0241] The third reporting module is configured to report the detection result to the base station, wherein the detection result is used by the base station to determine the primary carrier.

[0242] In some other embodiments, the carrier information is used to indicate at least one of the following:

[0243] Main carrier;

[0244] Carrier bandwidth;

[0245] The frequency of the main carrier;

[0246] The frequency of the subcarrier.

[0247] Several specific examples are provided below in combination with any of the above embodiments:

[0248] Example 1:

[0249] This application provides a method for implementing carrier aggregation in an unlicensed frequency band, which can effectively support service transmission with relatively high data rate requirements in the unlicensed frequency band.

[0250] The method proposed in this application is as follows:

[0251] The terminal reports its carrier aggregation capability information. The carrier aggregation capability information indicates the carrier aggregation capability of the terminal. For example, the carrier aggregation capability information is at least used to indicate: whether the terminal supports carrier aggregation on unlicensed spectrum; the maximum number of carrier aggregations that the terminal can support, and other information.

[0252] The terminal may report the carrier aggregation capability information in a licensed frequency band or an unlicensed frequency band. For example, the terminal may report the capability during the process of establishing an RRC connection or during the communication process with the base station after the RRC connection is established.

[0253] The carrier aggregation relationship may be pre-configured or dynamically determined; if the carrier aggregation relationship is pre-configured, the aforementioned carrier information will be pre-configured.

[0254] In the case of pre-configured carrier aggregation relationship, when the terminal has the capability of performing carrier aggregation on the unlicensed frequency band, the base station will pre-configure the carrier information that the terminal can use for carrier aggregation, and the carrier information can be used to indicate at least one of the following:

[0255] Information such as the main carrier, carrier bandwidth, and the frequency points corresponding to the carriers participating in carrier aggregation.

[0256] When the transmitter operates on the unlicensed spectrum, the specific carrier aggregation methods may include but are not limited to the following:

[0257] The first method is to perform operations such as channel detection on a carrier that can be used as a primary carrier. After the primary carrier is determined, operations on the secondary carrier can be controlled through the primary carrier, such as a channel access mechanism, notification of some control information, etc.

[0258] The second method is to perform channel detection operations on all carriers. When the operable carrier is a secondary carrier, the carrier aggregation operation cannot be performed.

[0259] For the first type: when performing channel detection only on the primary carrier, the transmitting end (such as a base station or a terminal) may also preferentially perform channel detection on carrier 1, and if the corresponding carrier is detected to be idle, the carrier is occupied for carrier aggregation. After successfully occupying carrier 1, operations on carriers 2 and 3 are indicated.

[0260] For the second case: when performing channel detection on all carriers, Figure 8 As shown: when the transmitting end is a base station, the base station predetermines carrier 1 as the main carrier during carrier aggregation operation, and carrier 2 and carrier 3 as secondary carriers during carrier aggregation operation.

[0261] The base station can perform channel detection on carrier 1, carrier 2 and carrier 3. When the base station detects that carrier 2 or carrier 3 is idle, the base station can transmit data on carrier 2 and carrier 3, but cannot trigger carrier aggregation operations on carrier 2 and carrier 3. When carrier 1 is detected to be idle, carrier 1 is occupied, and carrier aggregation can be triggered on carrier 1 to aggregate idle carriers 2 and / or carrier 3. Similarly, when the transmitting end is a terminal, the terminal receives an instruction from the base station to predetermine carrier 1 as the main carrier during carrier aggregation operation, and carrier 2 and carrier 3 as secondary carriers during carrier aggregation operation. The terminal performs channel detection on carrier 1, carrier 2, and carrier 3, and notifies the base station of the detection results. The base station decides whether to trigger the execution of carrier aggregation based on the detection results.

[0262] Example 2:

[0263] In the case of dynamically determining the carrier aggregation relationship, when the terminal has the capability to perform carrier aggregation on an unlicensed frequency band, the base station will perform channel detection operations on all carriers. After successfully occupying a channel on a certain carrier, the terminal can be triggered to perform carrier aggregation operations on that carrier.

[0264] The operations for triggering the terminal to perform carrier aggregation may include but are not limited to:

[0265] Notify the terminal of information about aggregated carriers;

[0266] Channel access mechanism on subcarriers, transmission of control information, etc.

[0267] like Fig. 9As shown, when the transmitting end passes the channel detection on any carrier, it can determine that the carrier is the main carrier, and trigger and perform the carrier aggregation operation on it. This application provides a method for implementing carrier aggregation on an unlicensed frequency band, which can effectively support the transmission of services with relatively high data rate requirements on an unlicensed frequency band.

[0268] The transmitting end (base station or terminal) performs channel detection on carrier 1, carrier 2, and carrier 3 in the unlicensed frequency band. If an idle carrier is detected, it can be used as the main carrier to trigger the execution of carrier aggregation. In this example, the earliest idle carrier detected will be used as the main carrier to trigger the execution of carrier aggregation. Fig.10 The earliest idle carrier detected is carrier 2, and the base station will configure carrier 2 as the main carrier of carrier aggregation to form dynamically determined carrier information.

[0269] So, compare Figure 8 The pre-configured carrier 1 is shown as the main carrier. When the idle status of carrier 1, carrier 2 and carrier 3 are the same, due to different configuration methods of carrier information, entering will result in different start times of carrier aggregation and different main carriers used.

[0270] This embodiment also provides a communication device, including:

[0271] antenna;

[0272] Memory;

[0273] The processor is connected to the antenna and the memory respectively, and is used to control the antenna to send and receive wireless signals by executing an executable program stored in the memory, and can execute the steps of the carrier aggregation method provided in any of the above embodiments.

[0274] The communication device provided in this embodiment may be the aforementioned terminal or base station. The terminal may be various human-mounted terminals or vehicle-mounted terminals. The base station may be various types of base stations, for example, a 4G base station or a 5G base station.

[0275] The antenna may be various types of antennas, for example, a mobile antenna such as a 3G antenna, a 4G antenna or a 5G antenna; the antenna may also include: a WiFi antenna or a wireless charging antenna, etc.

[0276] The memory may include various types of storage media, which are non-transitory computer storage media that can continue to memorize information stored thereon after the communication device loses power.

[0277] The processor may be connected to the antenna and the memory through a bus, etc., and is used to read the executable program stored in the memory, for example Figure 2 and / or Figure 6The carrier aggregation method shown, etc.

[0278] The present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores an executable program, wherein when the executable program is executed by a processor, the steps of the carrier aggregation method provided in any of the above embodiments are implemented, for example, Figure 2 and / or Figure 6 At least one of the methods shown.

[0279] Reference Fig.11 The terminal 800 shown in this embodiment provides a terminal 800, which can be a mobile phone, a computer, a digital broadcast terminal, a message sending and receiving device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0280] Reference Fig.11 The terminal 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0281] The processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0282] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0283] Power component 806 provides power to various components of terminal 800. Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0284] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0285] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0286] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0287] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the terminal 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of the components, such as the display and keypad of the terminal 800, and the sensor assembly 814 can also detect the position change of the terminal 800 or a component of the terminal 800, the presence or absence of contact between the user and the terminal 800, the orientation or acceleration / deceleration of the terminal 800 and the temperature change of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0288] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0289] In an exemplary embodiment, terminal 800 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.

[0290] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by a processor 820 of the terminal 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0291] The terminal can be used to implement the aforementioned carrier aggregation method, for example, Figure 2 and / or Figure 6 The carrier aggregation method.

[0292] Fig.12 is a block diagram of a base station 900 according to an exemplary embodiment. For example, the base station 900 may be provided as a network side device. Fig.12 The base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932, for storing instructions that can be executed by the processing component 922, such as an application. The application stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute instructions to perform the carrier aggregation method provided by any of the aforementioned embodiments of the method, for example, Figure 2 and / or Figure 6 The method shown.

[0293] The base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input / output (I / O) interface 958. The base station 900 may operate based on an operating system stored in the memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

[0294] The wireless network interface 950 includes, but is not limited to, the antenna of the aforementioned communication device. After considering the specification and practicing the invention disclosed herein, those skilled in the art will easily think of other embodiments of the present application. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present application are indicated by the following claims.

[0295] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A carrier aggregation method, characterized in that: include: The terminal receives carrier information sent by the base station based on the carrier aggregation capability information, where the carrier aggregation capability information is used to indicate to the terminal: whether to support carrier aggregation on an unlicensed frequency band; and / or, the maximum number of carrier aggregations supported; The terminal determines, according to the carrier information, a primary carrier for performing carrier aggregation on an unlicensed frequency band; wherein the primary carrier is used to transmit control signaling; The terminal transmits a control instruction related to carrier aggregation on the primary carrier; The terminal performs channel detection on the primary carrier; The terminal sends a detection result of performing channel detection to the base station.

2. The method according to claim 1, characterized in that: The method further comprises: The terminal sends the carrier aggregation capability information of the terminal to the base station.

3. The method according to claim 1 or 2, characterized in that: The carrier information is used to indicate at least one of the following: Main carrier; Carrier bandwidth; The frequency of the main carrier; The frequency of the subcarrier.

4. A carrier aggregation device, characterized in that: include: a transceiver unit, configured to receive carrier information sent by a base station based on the carrier aggregation capability information, wherein the carrier aggregation capability information is used to indicate whether the terminal supports carrier aggregation on an unlicensed frequency band; and / or, the maximum number of carrier aggregations supported; A processing unit, configured to determine a primary carrier for performing carrier aggregation on an unlicensed frequency band according to the carrier information; wherein the primary carrier is used to transmit control signaling; The transceiver unit is used to transmit control instructions related to carrier aggregation on the main carrier, perform channel detection on the main carrier, and send the detection result of performing the channel detection to the base station.

5. The device according to claim 4, characterized in that The transceiver unit is further configured to send carrier aggregation capability information of the device to the base station.

6. The device according to claim 4 or 5, characterized in that The carrier information is used to indicate at least one of the following: Main carrier; Carrier bandwidth; The frequency of the main carrier; The frequency of the subcarrier.

7. A communication device, comprising: antenna; Memory; The processor is connected to the antenna and the memory respectively, and is used to control the antenna to send and receive wireless signals by executing an executable program stored in the memory, and is capable of executing the carrier aggregation method as described in claim 1 and / or 2.

8. A computer-readable storage medium for storing an executable program, characterized in that: When the executable program is executed by the processor, the carrier aggregation method as claimed in claim 1 and / or 2 is implemented.

Images