Method, apparatus and storage medium for configuring inter-band carrier aggregation

Abstract

The embodiment of the present application provides a configuration method in inter-band carrier aggregation, which comprises: obtaining terminal information of a terminal; configuring a target carrier aggregation mode for the terminal based on the terminal information, the target carrier aggregation mode being adapted to the terminal information; and realizing data transmission with the terminal based on the target carrier aggregation mode. The method provided by the embodiment of the present application can realize adaptive selection of three carrier aggregation modes, and facilitate configuration of the terminal to a suitable carrier aggregation mode. Moreover, through adaptive selection among the three carrier aggregation modes, the advantages of wide coverage of the first carrier and large capacity of the second carrier can be fully utilized, so that the coverage range is ensured and the demand for large capacity in the data transmission process is also taken into account.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular to a configuration method, apparatus, base station, and storage medium for inter-band carrier aggregation. Background Technology

[0002] With the explosive growth of data traffic, mobile communication technology is gradually evolving towards higher bandwidth, higher speed, and lower latency. Currently, most mainstream 5G frequency bands use higher frequencies such as 2.6GHz and 3.5GHz. While this provides greater bandwidth, it also results in limited uplink coverage due to higher path loss and penetration loss. To address this issue, low-frequency Frequency Division Duplex (FDD) carriers can be aggregated with high-frequency Time Division Duplex (TDD) carriers to achieve data transmission. FDD carriers enhance uplink coverage and improve speeds for edge users. FDD and TDD are two communication modes used in mobile communication systems to separate the receive and transmit channels (or uplink and downlink). In FDD mode, reception and transmission occur on two separate symmetrical frequency channels, separated by a guaranteed frequency band. In TDD mode, reception and transmission occur on the same frequency channel in different time slots, separated by a guaranteed time, enabling dual-stream transmission.

[0003] However, conventional carrier aggregation methods directly aggregate FDD and TDD carriers in parallel without taking into account the uplink service information of the terminal. This not only fails to improve the carrier aggregation capacity but may also lead to a significant waste of terminal power consumption. Summary of the Invention

[0004] Therefore, it is necessary to provide a configuration method, device, base station, and storage medium that adaptively selects carrier aggregation mode based on terminal information, which can fully utilize the wide coverage of FDD carriers and the large capacity of TDD carriers for inter-band carrier aggregation, and facilitates the terminal to be configured with a suitable carrier aggregation mode.

[0005] Firstly, this application provides a configuration method for inter-band carrier aggregation. The method includes:

[0006] Obtain terminal information;

[0007] Based on the terminal information, a target carrier aggregation mode adapted to the terminal information is configured for the terminal; wherein, the target carrier aggregation mode includes: a first carrier single transmission mode, a first carrier and a second carrier concurrent transmission mode, and a first carrier and a second carrier round-robin transmission mode; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier;

[0008] Based on the target carrier aggregation mode, data transmission between the base station and the terminal is realized.

[0009] Secondly, this application provides a configuration apparatus for inter-band carrier aggregation. The apparatus includes:

[0010] The acquisition module is used to acquire terminal information from the terminal.

[0011] A configuration module is used to configure a target carrier aggregation mode adapted to the terminal information based on the terminal information; wherein the target carrier aggregation mode includes: a first carrier single transmission mode, a first carrier and a second carrier concurrent transmission mode, and a first carrier and a second carrier round-robin transmission mode; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier;

[0012] The transmission module is used to realize data transmission between the base station and the terminal based on the target carrier aggregation mode.

[0013] Thirdly, this application also provides a base station. The base station includes a communication interface, a memory, and a processor. The communication interface is used to transmit messages in response to instructions from the processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0014] Obtain terminal information;

[0015] Based on the terminal information, a target carrier aggregation mode adapted to the terminal information is configured for the terminal; wherein, the target carrier aggregation mode includes: a first carrier single transmission mode, a first carrier and a second carrier concurrent transmission mode, and a first carrier and a second carrier round-robin transmission mode; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier;

[0016] Based on the target carrier aggregation mode, data transmission between the base station and the terminal is realized.

[0017] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, performs the following steps:

[0018] Obtain terminal information;

[0019] Based on the terminal information, a target carrier aggregation mode adapted to the terminal information is configured for the terminal; wherein, the target carrier aggregation mode includes: a first carrier single transmission mode, a first carrier and a second carrier concurrent transmission mode, and a first carrier and a second carrier round-robin transmission mode; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier;

[0020] Based on the target carrier aggregation mode, data transmission between the base station and the terminal is realized.

[0021] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, performs the following steps:

[0022] Obtain terminal information;

[0023] Based on the terminal information, a target carrier aggregation mode adapted to the terminal information is configured for the terminal; wherein, the target carrier aggregation mode includes: a first carrier single transmission mode, a first carrier and a second carrier concurrent transmission mode, and a first carrier and a second carrier round-robin transmission mode; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier;

[0024] Based on the target carrier aggregation mode, data transmission between the base station and the terminal is realized.

[0025] In the aforementioned configuration method, apparatus, base station, and storage medium for inter-band carrier aggregation, the base station can obtain terminal information of the terminal; and based on this terminal information, configure a suitable target carrier aggregation mode for the terminal. This target carrier aggregation mode can be one of the following: a single-transmission mode for the first carrier, a concurrent mode for the first and second carriers, or a round-robin mode for the first and second carriers. Furthermore, based on the target carrier aggregation mode, data transmission between the base station and the terminal is realized. The method provided in this application embodiment can adaptively select from three carrier aggregation modes, facilitating the configuration of the terminal to a suitable carrier aggregation mode. Moreover, by adaptively selecting from the three carrier aggregation modes, the advantages of the wide coverage of the first carrier and the large capacity of the second carrier are fully utilized, ensuring coverage while also taking into account the high-capacity requirements during data transmission. Attached Figure Description

[0026] Figure 1 An application scenario diagram illustrating a configuration method for inter-band carrier aggregation provided in an embodiment of this application;

[0027] Figure 2 A flowchart illustrating a configuration method for inter-band carrier aggregation provided in an embodiment of this application;

[0028] Figure 3 A schematic diagram illustrating three carrier aggregation modes provided in the embodiments of this application;

[0029] Figure 4 A schematic diagram illustrating the switching of the transmitting antenna on the first carrier and the second carrier provided in an embodiment of this application;

[0030] Figure 5 A flowchart illustrating the configuration target scheduling timing and target feedback timing in concurrent mode provided in this application embodiment;

[0031] Figure 6 Design diagrams of the target scheduling timing and target feedback timing for the concurrent mode provided in the embodiments of this application;

[0032] Figure 7 A flowchart illustrating the configuration of target scheduling timing and target feedback timing under the round-robin mode provided in this application embodiment;

[0033] Figure 8 This application provides a design diagram of the target scheduling timing and target feedback timing for the round-robin mode.

[0034] Figure 9 A schematic diagram illustrating the determination of scheduling symbols and feedback symbols provided in an embodiment of this application;

[0035] Figure 10 A schematic diagram illustrating a process for configuring a target carrier aggregation mode for a terminal, provided in an embodiment of this application;

[0036] Figure 11 A structural block diagram of a configuration device for inter-band carrier aggregation provided in an embodiment of this application;

[0037] Figure 12 This is an internal structure diagram of a base station provided in an embodiment of this application. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0039] Currently, most mainstream 5G frequency bands adopt TDD carrier transmission mode. However, TDD carriers have a low uplink duty cycle, which cannot meet the service demands of large uplink data traffic. To solve this problem, inter-band carrier aggregation can aggregate low-frequency FDD carriers with high-frequency TDD carriers, using FDD carriers to enhance uplink coverage and improve the speed of edge users. However, if FDD carriers and TDD carriers are simply aggregated concurrently, both can only use single-stream transmission, limiting the uplink dual-stream capability of TDD carriers, and the capacity may even be reduced compared to no carrier aggregation. Therefore, in this embodiment, a super uplink technology is introduced, which allows a terminal's antenna to flexibly switch between two carriers. Combining super uplink technology with inter-band carrier aggregation can adaptively select the appropriate carrier aggregation mode for the terminal, thereby fully leveraging the advantages of both and ensuring the large capacity brought by TDD carrier uplink dual-stream transmission while enhancing uplink coverage.

[0040] The configuration method for inter-band carrier aggregation provided in this application embodiment can be applied to, for example... Figure 1 In the scenario shown, in this embodiment of the application, terminal 101 communicates wirelessly with base station 102.

[0041] Base station 102 can measure the signal sent by terminal 101 to obtain the reference signal received power (RSRP) measurement value of terminal 101. Additionally, base station 102 can also obtain the data traffic to be transmitted and latency requirements of terminal 101 based on signaling interaction with terminal 101. Next, based on terminal information such as the reference signal received power, data traffic to be transmitted, and latency requirements of terminal 101, base station 102 can configure a corresponding target carrier aggregation mode for terminal 101, thereby enabling data transmission between terminal 101 and base station 102.

[0042] Terminal 101 can send signals to base station 102 for signaling interaction, so that base station 102 can obtain terminal information of terminal 101. After being configured to the corresponding target carrier aggregation mode, terminal 101 can transmit data with base station 102 according to the corresponding target carrier aggregation mode.

[0043] Terminal 101 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, smart in-vehicle devices, etc. Portable wearable devices can include smartwatches, smart bracelets, head-mounted devices, etc.

[0044] In one embodiment, such as Figure 2As shown, a configuration method for inter-band carrier aggregation is provided, which can be applied to... Figure 1 Taking base station 102 as an example, the explanation includes the following steps:

[0045] Step S201: Obtain terminal information of the terminal.

[0046] In the embodiments of this application, the terminal information may include, but is not limited to, reference signal received power, data traffic to be transmitted, and latency requirements. In some possible implementations, the terminal information may also include other terminal-related information such as bandwidth requirements and spectrum resources, which are not limited in this embodiment.

[0047] The data to be transmitted refers to the uplink service data that the terminal needs to transmit to the base station; the data traffic to be transmitted can be the uplink service data traffic of the terminal, which can characterize the service level of the terminal in this embodiment. The reference signal received power of the terminal can characterize the position of the terminal within the coverage area of ​​the second carrier.

[0048] Step S202: Based on the terminal information, configure a target carrier aggregation mode for the terminal that is compatible with the terminal information.

[0049] Among them, such as Figure 3 As shown, the target carrier aggregation mode can include: a single-carrier mode, where the terminal uses the first carrier for uplink transmission and transmits data using a single carrier; a concurrent mode of the first and second carriers, where the terminal uses both the first and second carriers concurrently for uplink transmission, with both carriers using single-stream transmission; and a round-robin mode of the first and second carriers, where the terminal alternates between the first and second carriers for uplink transmission, using single-stream transmission when using the first carrier and dual-stream transmission when using the second carrier. Here, "stream" can refer to a data stream, a mode of data transmission that indicates how many data streams are being transmitted simultaneously. Single-stream transmission means one data stream is being transmitted; dual-stream transmission means two data streams are being transmitted simultaneously. In this embodiment, the first carrier is FDD and the second carrier is TDD, as an example. Typically, a terminal has two transmit antennas. In this embodiment, for a terminal supporting super uplink for antenna switching, in the round-robin mode of the first and second carriers, one transmit antenna can be fixed on the second carrier, and the other transmit antenna can switch between the first and second carriers, such as... Figure 4 As shown; for example, when not in the uplink time slot of the second carrier, the first carrier single-stream transmission is used. When in the uplink time slot of the second carrier, the transmitting antenna on the first carrier can be switched to the second carrier, thereby realizing the uplink dual-stream transmission of the second carrier.

[0050] In addition, the coverage area of ​​the first carrier is greater than that of the second carrier, and the capacity of the second carrier is greater than that of the first carrier.

[0051] In some possible implementations, the first carrier can be a frequency division duplex (FDD) carrier with wide coverage. The second carrier can be a time division duplex (TDD) carrier with high capacity. TDD carriers have the characteristics of abundant bandwidth resources and low uplink duty cycle. In some possible implementations, the first and second carriers can also be other transmission carriers, and this application embodiment does not limit this.

[0052] Step S203: Data transmission with the terminal is achieved based on the target carrier aggregation mode.

[0053] In the above-described inter-band carrier aggregation configuration method, the base station can obtain terminal information of the terminal; and based on this terminal information, configure a suitable target carrier aggregation mode for the terminal. This target carrier aggregation mode can be one of the following: a single-transmission mode for the first carrier, a concurrent mode for the first and second carriers, or a round-robin mode for the first and second carriers. Then, based on the target carrier aggregation mode, data transmission between the base station and the terminal is realized. The method provided in this application embodiment can adaptively select from three carrier aggregation modes, facilitating the terminal to be configured with a suitable carrier aggregation mode. Furthermore, by adaptively selecting from the three carrier aggregation modes, the advantages of the wide coverage of the first carrier and the large capacity of the second carrier are fully utilized, ensuring coverage while also taking into account the high-capacity requirements during data transmission.

[0054] In one embodiment, step S202 may include:

[0055] When the terminal information meets at least one of the first set conditions, the target carrier aggregation mode is configured as the first carrier single transmission mode;

[0056] If the terminal information does not meet any of the first set conditions, the target carrier aggregation mode will be configured as concurrent mode or round-robin mode.

[0057] In this embodiment of the application, the first setting condition may include: sub-condition 1: the reference signal received power is less than the coverage edge received power threshold of the second carrier; sub-condition 2: the data traffic to be transmitted is not greater than a preset traffic threshold.

[0058] The reference signal received power of the terminal can characterize the terminal's position within the coverage area of ​​the second carrier. The coverage edge received power threshold of the second carrier can characterize the minimum received power of the terminal within the coverage area of ​​the second carrier; the lower the received power, the closer the terminal is to the coverage edge within the coverage area of ​​the second carrier. Regarding sub-condition 1 under the first setting condition: if the reference signal received power of the terminal is less than the coverage edge received power threshold of the second carrier, it indicates that the terminal is outside the coverage area of ​​the second carrier. Therefore, data transmission between the base station and the terminal cannot use the second carrier. In this case, the single-transmission mode of the first carrier can be selected as the target carrier aggregation mode. If the reference signal received power of the terminal is not less than the coverage edge received power threshold of the second carrier, it indicates that the terminal is within the coverage area of ​​the second carrier. Then, the terminal can also use the second carrier for data transmission. In this case, the concurrent mode or round-robin mode can be used as the target carrier aggregation mode. Regarding sub-condition 2 under the first setting condition, the data traffic to be transmitted by the terminal can characterize the terminal's service level. The preset traffic threshold can be the minimum value of the service traffic using the second carrier with a large capacity, set in advance. If the data traffic to be transmitted by the terminal is not greater than the preset traffic threshold, it indicates that the size of the data packet to be transmitted by the terminal is too small. In this case, it is not suitable to use the second carrier for data transmission between the base station and the terminal. The first carrier single transmission mode can be selected as the target carrier aggregation mode. If the data traffic to be transmitted by the terminal is greater than the preset traffic threshold, it indicates that the terminal can also use the second carrier for data transmission. In this case, the concurrent mode or round-robin mode can be selected as the target carrier aggregation mode.

[0059] In some possible implementations, if the terminal's reference signal received power is less than the coverage edge received power threshold of the second carrier and the data traffic to be transmitted is not greater than a preset traffic threshold, it indicates that the second carrier is not suitable for data transmission between the base station and the terminal. In this case, the first carrier single-transmission mode is used as the target carrier aggregation mode for the terminal, meaning that data transmission between the base station and the terminal can be performed through the first carrier single-transmission mode. In this implementation, for users with small data traffic to be transmitted or located at the coverage edge of the second carrier TDD carrier, enabling super uplink may not only fail to increase user capacity but also waste terminal power consumption. Therefore, in this case, an appropriate first carrier single-transmission mode is adaptively configured for the terminal as the target carrier aggregation mode.

[0060] In some possible implementations, if the reference signal received power of the terminal is not less than the coverage edge received power threshold of the second carrier and the data traffic to be transmitted is greater than the preset traffic threshold, it indicates that the second carrier can be used for data transmission between the base station and the terminal. In this case, the aggregation mode of the first carrier and the second carrier can be used, that is, the concurrent mode or the round-robin mode can be used as the target carrier aggregation mode.

[0061] In the above method, the base station can determine whether the terminal meets the conditions in the first set conditions based on the terminal information of the terminal. Thus, it can determine whether the terminal can use the second carrier and configure the appropriate carrier aggregation mode for the terminal more accurately. When configuring the first carrier single transmission mode for the terminal, the advantage of the wide coverage of FDD can be fully utilized.

[0062] In one embodiment, the terminal information may further include: the terminal's latency requirements, information indicating whether the terminal supports dual-stream transmission of the second carrier, and information indicating whether the terminal supports antenna switching. Correspondingly, step S202 may further include:

[0063] When the terminal information meets all of the second set conditions, the target carrier aggregation mode is configured as round-robin mode; when the terminal information does not meet at least one of the second set conditions, the target carrier aggregation mode is configured as concurrent mode.

[0064] In this embodiment of the application, the second setting condition may include: sub-condition 1: the reference signal receiving power of the terminal is not less than the coverage center receiving power threshold of the second carrier; sub-condition 2: the delay requirement of the terminal is greater than the preset delay threshold; sub-condition 3: the terminal supports dual-stream transmission of the second carrier; sub-condition 4: the terminal supports antenna switching.

[0065] Specifically, regarding sub-condition 1 of the second setting condition: the coverage center received power threshold of the second carrier can characterize the minimum received power of a terminal located at the center of the coverage range of the second carrier; the smaller the reference signal received power, the closer the terminal is to the edge of the coverage center within the coverage range of the second carrier. If the terminal's reference signal received power is less than the coverage center received power threshold of the second carrier, it indicates that the terminal is not within the center of the coverage range of the second carrier. In this case, the terminal is not suitable for data transmission using the second carrier alone, i.e., it is not suitable for data transmission using the round-robin mode of the first and second carriers. In this case, data transmission between the base station and the terminal can be achieved through the concurrent mode of the first and second carriers. If the terminal's reference signal received power is not less than the coverage center received power threshold of the second carrier, it indicates that the terminal is within the center of the coverage range of the second carrier. In this case, the appropriate target carrier aggregation mode for the terminal can be determined by judging the terminal according to sub-conditions 2 to 4 of the second setting condition. Regarding sub-condition 2 of the second setting condition: If the terminal's latency requirement is not greater than the preset latency threshold, it indicates that the terminal has a relatively high latency requirement. In concurrent mode, the transmission latency can be shortened. Therefore, when the latency requirement is not greater than the preset latency threshold, the terminal can be configured with concurrent mode as the target carrier aggregation mode, i.e., data transmission between the base station and the terminal is achieved through concurrent mode of the first and second carriers. Regarding sub-condition 3 of the second setting condition: If the terminal supports dual-stream transmission of the second carrier, it indicates that the terminal can use the second carrier alone for data transmission, i.e., the terminal supports round-robin mode of the first and second carriers. In this case, the terminal can be judged according to sub-conditions 1, 2, and 4 of the second setting condition to determine whether the terminal can be configured with round-robin mode of the first and second carriers. If the terminal does not support dual-stream transmission of the second carrier, it indicates that the terminal cannot use the second carrier alone for data transmission. Therefore, the terminal does not support round-robin mode of the first and second carriers. In this case, the terminal can be configured with concurrent mode as the target carrier aggregation mode, i.e., data transmission between the base station and the terminal is achieved through concurrent mode of the first and second carriers. Regarding sub-condition 4 under the second setting condition: If the terminal supports antenna switching, it indicates that the terminal supports the first carrier and second carrier round-robin mode. In this case, it can be determined whether the terminal can be configured with the first carrier and second carrier round-robin mode by judging sub-conditions 1 to 3 under the second setting condition. If the terminal does not support antenna switching, it indicates that the terminal does not support the first carrier and second carrier round-robin mode. In this case, a concurrent mode can be configured for the terminal as the target carrier aggregation mode, that is, data transmission between the base station and the terminal is realized through the first carrier and second carrier concurrent mode.

[0066] If the terminal information simultaneously meets all the second preset conditions, it indicates that the terminal is located in the center of the coverage area of ​​the second carrier, has low latency requirements, supports dual-stream transmission of the second carrier, and antenna switching. In this case, data transmission can be performed using the first carrier and second carrier round-robin mode. In the above method, the base station can determine whether the terminal meets the conditions in the second preset conditions based on the terminal information. Therefore, it can configure an appropriate carrier aggregation mode for the terminal in both concurrent and round-robin modes. When configuring the round-robin mode, the dual-stream transmission advantage of the TDD carrier can be fully utilized to meet the high-capacity requirements of the terminal during data transmission. In the above method, for users who meet the requirements of low latency but large data volume and are located in the center of the TDD carrier coverage area, enabling the FDD+TDD round-robin mode can ensure that the corresponding uplink time slot of the TDD carrier uses dual-stream transmission, fully utilizing the advantages of TDD's large bandwidth. For users with high latency requirements and large data throughput, enabling FDD+TDD concurrent mode not only improves uplink capacity but also shortens feedback latency through the uplink time slots of the FDD carrier. In one embodiment, the inter-band carrier aggregation configuration method provided in this application may further include:

[0067] Based on the target carrier aggregation mode, the terminal is configured with target scheduling timing and target feedback timing that are adapted to the target carrier aggregation mode.

[0068] In some possible implementations, such as Figure 5 As shown, configuring target scheduling timing and target feedback timing for the terminal based on the concurrent mode, adapted to the target carrier aggregation mode, may include the following steps:

[0069] Step S501: When the target carrier aggregation mode is concurrent mode, determine the current FDD timeslot in the first carrier and the current TDD timeslot in the second carrier; the current timeslot is the timeslot for transmitting data in data transmission.

[0070] In this embodiment, the example is given with the first carrier being FDD and the second carrier being TDD.

[0071] The first carrier includes multiple FDD uplink time slots; the second carrier includes multiple TDD uplink time slots; the target scheduling timing includes FDD scheduling timing and TDD scheduling timing; and the target feedback timing includes FDD feedback timing and TDD feedback timing.

[0072] Step S502: Configure the terminal with the FDD scheduling timing and FDD feedback timing corresponding to the first carrier adapted to the target carrier aggregation mode on the FDD uplink time slot closest to the current FDD time slot among multiple FDD uplink time slots.

[0073] Step S503: Configure the TDD scheduling timing for the terminal on the TDD uplink time slot closest to the current TDD time slot among multiple TDD uplink time slots, and configure the TDD feedback timing for the terminal on the TDD uplink time slot closest to the current TDD time slot among multiple FDD uplink time slots, which is also compatible with the target carrier aggregation mode.

[0074] In the embodiments of this application, the concurrent mode of the first carrier and the second carrier is described.

[0075] like Figure 6 As shown in (a), taking the N28+N41 frequency band combination as an example, in concurrent mode, the two transmit antennas of the terminal do not perform carrier switching, and all uplink time slots of the FDD and TDD carriers can be used. Therefore, the uplink scheduling and HARQ feedback are evenly distributed on the uplink time slots of the FDD carrier. The uplink scheduling time slot of the FDD carrier can be designed as {2}, and the feedback timing can be designed as {2,3}; the uplink scheduling time slot of the TDD carrier can be designed as {2}, and the feedback timing can be designed as {3,4}. Figure 6 As shown in (b), taking the N1+N78 frequency band combination as an example, the uplink scheduling time slot of the FDD carrier can be designed as {2}, and the feedback timing can be designed as {2,3}; the uplink scheduling time slot of the TDD carrier can be designed as {2}, and the feedback timing can be designed as {3,4}.

[0076] Compared to TDD single-carrier transmission, the concurrent mode provided in this application not only improves capacity, but also shortens HARQ feedback delay based on the design of the scheduling and feedback time slots. Furthermore, while the FDD+TDD concurrent mode offers slightly less capacity improvement than the FDD+TDD round-robin mode, it avoids the switching delay caused by antenna switching and further shortens the HARQ feedback delay.

[0077] In some possible implementations, such as Figure 7 As shown, configuring the target scheduling timing and target feedback timing for the terminal based on the round-robin mode can include the following steps:

[0078] Step S701: When the target carrier aggregation mode is round-robin mode, determine the switching time position between the first carrier and the second carrier, and obtain the current time slot for the terminal to transmit uplink data.

[0079] In this embodiment, the example is given with the first carrier being FDD and the second carrier being TDD.

[0080] Specifically, when the target carrier aggregation mode is round-robin mode, the antenna switching time interval is configured on the first carrier; when the target carrier aggregation mode is single-transmission mode or concurrent mode on the first carrier, the antenna switching time interval is not configured. The start and end times of the TDD uplink timeslot of the second carrier are determined as the switching time positions.

[0081] Based on the principles of prioritizing scheduling and feedback, requiring downlink scheduling to occur before or in the current time slot, and minimizing scheduling and feedback delays, the scheduling and feedback time slots are determined.

[0082] Step S702: Determine the uplink time slots other than the switching time position as available time slots.

[0083] The uplink time slots include FDD uplink time slots and TDD uplink time slots.

[0084] Step S703: Configure the target scheduling timing and target feedback timing that are adapted to the target carrier aggregation mode for the terminal on the available time slot closest to the current time slot.

[0085] In one embodiment, configuring a target scheduling sequence adapted to the target carrier aggregation mode for the terminal on the available time slot closest to the current time slot may include:

[0086] When the current time slot is an FDD uplink time slot, configure the terminal with an FDD scheduling sequence adapted to the target carrier aggregation mode on the available time slot closest to the current time slot among multiple FDD uplink time slots.

[0087] When the current time slot is a TDD uplink time slot, configure the terminal with a TDD scheduling sequence adapted to the target carrier aggregation mode on the available time slot closest to the current time slot among multiple TDD uplink time slots.

[0088] In one embodiment, configuring a target feedback timing adapted to the target carrier aggregation mode for the terminal on the available time slot closest to the current time slot may include:

[0089] When the current time slot is an FDD uplink time slot, configure the terminal with an FDD feedback timing that is adapted to the target carrier aggregation mode on the available time slot closest to the current time slot among multiple FDD uplink time slots.

[0090] When the current time slot is a TDD uplink time slot, configure the terminal with a TDD feedback timing that is adapted to the target carrier aggregation mode on the available time slot closest to the current time slot among multiple FDD uplink time slots.

[0091] For the round-robin mode of the first and second carriers.

[0092] like Figure 8 As shown in (a), taking the N28+N41 frequency band combination as an example, the FDD carrier occupies time slots 4 and 9 due to transmit antenna switching, preventing uplink transmission in time slots 4 and 9. Therefore, uplink scheduling and Hybrid Automatic Repeat Request (HARQ) feedback are distributed as evenly as possible across the available time slots closest to the current time slot. In some possible implementations, the uplink scheduling time slot for the FDD carrier can be designed as {2}, and the feedback timing can be designed as {2,3}; the uplink scheduling time slot for the TDD carrier can be designed as {2}, and the feedback timing can be designed as {3,4,5,6}. Figure 8 As shown in (b), taking the N1+N78 frequency band combination as an example, the FDD carrier occupies time slots 2, 4, 7, and 9 due to the switching of the transmit antenna, which prevents uplink transmission in time slots 2, 4, 7, and 9. Therefore, the uplink scheduling and HARQ feedback should be evenly distributed on the available time slots closest to the current time slot as much as possible. The uplink scheduling time slot of the FDD carrier can be designed as {2}, and the feedback timing can be designed as {2,3,4}. The uplink scheduling time slot of the TDD carrier can be designed as {2}, and the feedback timing can be designed as {3,4,5,6}.

[0093] N28+N41 and N1+N78 are only two carrier aggregation frequency band combinations in the embodiments of this application. The line carrier aggregation mode of the embodiments of this application is also applicable to other frequency band combinations, and the embodiments of this application do not limit this.

[0094] The round-robin mode provided in this application not only improves capacity, but also shortens HARQ feedback latency based on the design of this scheduling and feedback time slots. It fully utilizes the dual-stream transmission of TDD carriers, increasing transmission capacity while simultaneously reducing transmission latency.

[0095] In addition, the scheduling timing can include scheduling time slots and scheduling symbols; the feedback timing includes feedback time slots and feedback symbols; the scheduling time slot can represent the time slot position where the terminal sends data to be transmitted; the scheduling symbol can represent the symbol position where the terminal sends data to be transmitted; the feedback time slot can represent the time slot position where the terminal feeds back the downlink scheduling of the base station; the feedback symbol can represent the symbol position where the terminal feeds back the downlink scheduling of the base station.

[0096] In some possible implementations, configuring the target scheduling sequence for the terminal based on the target carrier aggregation mode may also include:

[0097] Based on the target carrier aggregation mode and terminal information, obtain the available symbols for each time slot in each time slot corresponding to the first carrier and the second carrier, respectively.

[0098] When the target carrier aggregation mode is either the first carrier single-transmission mode or the concurrent mode, no antenna switching is required, and all symbols in each time slot of the first and second carriers can be used.

[0099] When the target carrier aggregation mode is round-robin mode, the available symbols in each time slot of the first and second carriers are determined according to the handover time position indicated by the terminal.

[0100] Typically, a time slot can include 14 symbols. In this embodiment, for the round-robin mode, taking an FDD carrier subcarrier spacing of 15kHz, a TDD carrier subcarrier spacing of 30kHz, and a handover interval of 140µs as an example, the handover interval corresponds to 2 symbols on the FDD carrier. Figure 9 As shown in (a), this embodiment of the application provides a time slot configuration for an N28+N41 frequency band combination. Time slots 8 and 9 of the TDD carrier are uplink time slots. Therefore, the FDD carrier will switch to the TDD carrier in time slot 4 to achieve TDD uplink dual-stream transmission. Since the switching interval is 140µs, and the switching interval is located on the FDD carrier, the last two symbols of time slot 3 of the FDD carrier and the first two symbols of time slot 5 cannot be used for uplink transmission. If the downlink interruption frequency band indicated by the terminal is the FDD carrier frequency band, with a switching interval of 140µs and a subcarrier spacing of 15kHz for the FDD carrier, the corresponding downlink interruption symbols are 3 symbols. Therefore, the last two symbols of time slot 3 of the FDD carrier, the first symbol of time slot 4, and the first three symbols of time slot 5 cannot be used for downlink transmission. Similarly, the subcarrier spacing of the TDD carrier is 30kHz, and the corresponding downlink interruption symbols are 6 symbols. Therefore, the first six symbols of time slot 10 of the TDD carrier cannot be used for downlink transmission. Figure 9 As shown in (b), this embodiment of the application provides a time slot configuration for an N1+N78 frequency band combination. Time slots 4, 8, and 9 of the TDD carrier are uplink time slots. Therefore, the FDD carrier will switch to the TDD carrier in time slots 2 and 4 to achieve TDD uplink dual-stream transmission. Since the switching interval is 140µs, and the switching interval is located on the FDD carrier, the last two symbols of time slot 1, the 8th and 9th symbols of time slot 2, the last two symbols of time slot 3, and the first two symbols of time slot 5 of the FDD carrier cannot be used for uplink transmission. According to the 3GPP protocol, the N1+N78 frequency band combination does not support downlink interruption; therefore, N1+N78 carrier aggregation does not need to consider downlink interruption caused by transmit antenna switching.

[0101] In some embodiments, taking FDD as the first carrier and TDD as the second carrier as an example, such as... Figure 10 As shown, a configuration method for inter-band carrier aggregation is provided, which may include the following steps:

[0102] Step S1001: Determine whether the received power of the reference signal is less than the coverage edge received power threshold of TDD. If yes, proceed to step S1003; otherwise, execute step S1002.

[0103] Step S1002: Determine whether the data traffic to be transmitted is greater than the preset traffic threshold. If not, proceed to step S1003; otherwise, proceed to step S1004.

[0104] Step S1003: Determine the target carrier aggregation mode as FDD single transmission mode.

[0105] Step S1004: Determine whether the received power of the reference signal is not less than the received power threshold of the coverage center of TDD. If not, proceed to step S1005; if yes, execute step S1006.

[0106] Step S1005: Determine the target carrier aggregation mode as concurrent mode.

[0107] Step S1006: Determine whether the terminal's latency requirement is greater than the TDD coverage center receiving power threshold. If not, proceed to step S1005; if yes, execute step S1007.

[0108] Step S1007: Determine whether the terminal supports antenna switching. If not, proceed to step S1005; if yes, proceed to step S1008.

[0109] Step S1008: Determine whether the terminal supports dual-stream transmission of the second carrier. If not, proceed to step S1005; if yes, execute step S1009.

[0110] Step S1009: Determine the target carrier aggregation mode as round-robin mode.

[0111] In this embodiment of the application, when the terminal supports dual-stream transmission, the round-robin mode can be used as the target carrier aggregation mode. In this mode, the terminal can alternately use the first carrier and the second carrier to transmit data with the base station. When using the second carrier, dual-stream transmission is performed, and when using the first carrier, single-stream transmission is performed.

[0112] If the terminal does not support dual-stream transmission, it cannot transmit data with the base station in round-robin mode. In this case, concurrent mode can be used as the target carrier aggregation mode.

[0113] The method described above can adaptively select from three carrier aggregation modes, making it easier for the terminal to be configured with the appropriate carrier aggregation mode. Furthermore, the adaptive selection among the three carrier aggregation modes fully leverages the advantages of the first carrier's wide coverage and the second carrier's large capacity, ensuring coverage while also meeting the high-capacity requirements during data transmission.

[0114] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0115] Based on the same inventive concept, this application also provides a configuration apparatus for implementing the inter-band carrier aggregation involved above. The solution provided by this apparatus is similar to the implementation scheme described in the above method. Therefore, the specific limitations in one or more configuration apparatus embodiments provided below can be found in the limitations of the configuration method above, and will not be repeated here.

[0116] In one embodiment, such as Figure 11 As shown, a configuration device for inter-band carrier aggregation is provided, comprising: an acquisition module 1101, a configuration module 1102, and a transmission module 1103, wherein:

[0117] The acquisition module 1101 is used to acquire terminal information of the terminal;

[0118] The configuration module 1102 is used to configure a target carrier aggregation mode for the terminal based on the terminal information and adapted to the terminal information; wherein, the target carrier aggregation mode includes: a first carrier single transmission mode, a first carrier and a second carrier concurrent transmission mode, and a first carrier and a second carrier round-robin transmission mode; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier;

[0119] The transmission module 1103 is used to realize data transmission with the terminal based on the target carrier aggregation mode.

[0120] The configuration module 1102 is further configured to: configure the target carrier aggregation mode to the first carrier single transmission mode when the terminal information meets at least one of the first set conditions; the first set conditions include: the reference signal received power is less than the coverage edge received power threshold of the second carrier; and the data traffic to be transmitted is not greater than a preset traffic threshold.

[0121] The configuration module 1102 is also used to: configure the target carrier aggregation mode to concurrent mode or round-robin mode when the terminal information does not meet any of the first set conditions.

[0122] The configuration module 1102 is further configured to: configure the target carrier aggregation mode to round-robin mode when the terminal information meets all items of the second set conditions; the second set conditions include: the reference signal received power is not less than the coverage center received power threshold of the second carrier; the delay requirement is greater than the preset delay threshold; the terminal supports dual-stream transmission of the second carrier; and the terminal supports antenna switching.

[0123] The configuration module 1102 is further configured to: configure the target carrier aggregation mode to concurrent mode when the terminal information does not meet at least one of the second set conditions.

[0124] The configuration module 1102 is also used to: configure the target scheduling timing and target feedback timing for the terminal based on the target carrier aggregation mode.

[0125] The configuration module 1102 is further configured to: determine the switching time position between the first carrier and the second carrier when the target carrier aggregation mode is round-robin mode, and obtain the current time slot for the terminal to transmit uplink data; determine the uplink time slot other than the switching time position as the available time slot; and configure the target scheduling timing and target feedback timing for the terminal on the available time slot closest to the current time slot.

[0126] Each module in the above-mentioned configuration device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of the base station in hardware form or independent of it, or stored in the memory of the base station in software form, so that the processor can call and execute the operations corresponding to each module.

[0127] In one embodiment, a base station is provided, the internal structure of which can be shown in the following diagram. Figure 12 As shown, the base station includes a processor, memory, and communication interface connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals. When executed by the processor, the computer program implements a configuration method in inter-band carrier aggregation.

[0128] Those skilled in the art will understand that Figure 12The structure shown is merely a block diagram of a portion of the structure related to the solution of this application and does not constitute a limitation on the base station to which the solution of this application is applied. A specific base station may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0129] In one embodiment, a base station is also provided, including a communication interface, a memory, and a processor. The communication interface is used to transmit messages in response to instructions from the processor. The memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0130] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0131] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0132] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0133] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0134] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0135] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A configuration method for inter-band carrier aggregation, characterized in that, The method includes: Obtain terminal information; Based on the terminal information, a target carrier aggregation mode adapted to the terminal information is configured for the terminal; wherein, the target carrier aggregation mode includes: a first carrier single transmission mode, a concurrent mode of the first carrier and the second carrier, and a round-robin mode of the first carrier and the second carrier; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier; the terminal information includes the terminal's reference signal received power, the amount of data to be transmitted, the latency requirement, information indicating whether the terminal supports dual-stream transmission of the second carrier, and information indicating whether the terminal supports antenna switching; Based on the target carrier aggregation mode, data transmission with the terminal is achieved.

2. The configuration method for inter-band carrier aggregation according to claim 1, characterized in that, The step of configuring a target carrier aggregation mode adapted to the terminal information based on the terminal information includes: When the terminal information satisfies at least one of the first preset conditions, the target carrier aggregation mode is configured as the first carrier single transmission mode; The first set conditions include: The received power of the reference signal is less than the coverage edge received power threshold of the second carrier; The data traffic to be transmitted is no greater than a preset traffic threshold.

3. The configuration method for inter-band carrier aggregation according to claim 2, characterized in that, The step of configuring a target carrier aggregation mode adapted to the terminal information based on the terminal information includes: If the terminal information does not meet any of the first set conditions, the target carrier aggregation mode will be configured as the concurrent mode or the round-robin mode.

4. The configuration method for inter-band carrier aggregation according to claim 3, characterized in that, The step of configuring the target carrier aggregation mode to the concurrent mode or the round-robin mode includes: When the terminal information satisfies all items of the second set condition, the target carrier aggregation mode is configured as the round-robin mode; The second setting conditions include: The received power of the reference signal is not less than the coverage center received power threshold of the second carrier; The required latency is greater than a preset latency threshold; The terminal supports dual-stream transmission of the second carrier. The terminal supports antenna switching.

5. The configuration method for inter-band carrier aggregation according to claim 4, characterized in that, The step of configuring the target carrier aggregation mode to the concurrent mode or the round-robin mode includes: When the terminal information does not meet at least one of the second set conditions, the target carrier aggregation mode is configured as the concurrent mode.

6. The configuration method for inter-band carrier aggregation according to claim 1, characterized in that, Also includes: Based on the target carrier aggregation mode, the terminal is configured with target scheduling timing and target feedback timing that are adapted to the target carrier aggregation mode.

7. The configuration method for inter-band carrier aggregation according to claim 6, characterized in that, The step of configuring target scheduling timing and target feedback timing for the terminal based on the target carrier aggregation mode includes: When the target carrier aggregation mode is configured as the round-robin mode, the switching time position between the first carrier and the second carrier is determined, and the current time slot for the terminal to transmit uplink data is obtained; The uplink time slots other than the switching time positions are determined as available time slots; On the available time slot closest to the current time slot, configure the target scheduling timing and the target feedback timing for the terminal.

8. A configuration device for inter-band carrier aggregation, characterized in that, The device includes: The acquisition module is used to acquire terminal information from the terminal. A configuration module is used to configure a target carrier aggregation mode adapted to the terminal information based on the terminal information; wherein the target carrier aggregation mode includes: a first carrier single-transmission mode, a concurrent mode of the first carrier and the second carrier, and a round-robin mode of the first carrier and the second carrier; the coverage range of the first carrier is greater than the coverage range of the second carrier, and the capacity of the second carrier is greater than the capacity of the first carrier; the terminal information includes the terminal's reference signal received power, the data flow to be transmitted, the latency requirement, information indicating whether the terminal supports dual-stream transmission of the second carrier, and information indicating whether the terminal supports antenna switching; The transmission module is used to realize data transmission with the terminal based on the target carrier aggregation mode.

9. A base station, comprising a communication interface, a memory, and a processor, wherein the communication interface is used to transmit messages in response to instructions from the processor; the memory stores a computer program, characterized in that... When the processor executes the computer program, it implements the steps of the method according to any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method described in any one of claims 1-7.

11. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the method described in any one of claims 1-7.

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