Communication method, device and system

Abstract

The invention discloses a communication method, device and system, relates to the technical field of communication, and is used for solving the problem of relatively large uplink coverage and capacity loss caused by relatively small uplink transmission occupation ratio in an existing time division duplex (TDD) mode. The method comprises: receiving first configuration information from a network device, the first configuration information being used for configuring a plurality of uplink carriers, the plurality of uplink carriers being located in the same frequency band, and communicating with the network device according to the plurality of uplink carriers.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to communication methods, devices, and systems. Background Art

[0002] With the continuous emergence of new services such as high-definition video, augmented reality (AR) / virtual reality (VR), etc., the demand for wireless data traffic is growing rapidly. In order to meet the growing wireless transmission requirements, wireless communication technologies need to further evolve.

[0003] In the prior art, in order to improve the network capacity and transmission rate of wireless networks, a TDD mode with a larger bandwidth has been proposed. However, in the TDD mode, the uplink carrier and the downlink carrier are time-division multiplexed. Since the proportion of uplink transmission is small and the bandwidth is small, the uplink coverage and capacity loss are relatively large. Therefore, how to improve the uplink coverage and capacity is an urgent problem to be solved. Summary of the Invention

[0004] Embodiments of this application provide a communication method, device, and system, which are used to solve the problem that the proportion of uplink transmission in the existing TDD mode is relatively small, resulting in relatively large uplink coverage and capacity loss.

[0005] In a first aspect, a communication method is provided. This method can be executed by a terminal device, or by components of the terminal device, such as a processor, a chip, or a chip system of the terminal device, or can also be implemented by a logic module or software that can implement all or part of the functions of the terminal device. Taking the example that this method can be executed by a terminal device, this method includes: receiving first configuration information from a network device, where the first configuration information is used to configure multiple uplink carriers, and the multiple uplink carriers are in the same frequency band, and communicating with the network device according to the multiple uplink carriers.

[0006] In the above technical solution, since the terminal device can receive the first configuration information of the network device, and the first configuration information is used to configure multiple uplink carriers in the same frequency band, compared with the existing configuration of one uplink carrier in one frequency band, by increasing the number of uplink carriers, the bandwidth for the terminal device to transmit uplink data is increased, the opportunity for uplink transmission is increased, thereby the uplink coverage and capacity are improved, and further, services with low latency, large uplink data traffic requirements, and high uplink coverage requirements can be supported.

[0007] Combined with the above first aspect, in a possible implementation manner, the above multiple uplink carriers support simultaneous signal transmission, further increasing the bandwidth for transmitting uplink data.

[0008] Combined with the first aspect above, in a possible implementation, the above-mentioned multiple uplink carriers support time-division transmission of signals, so that the terminal device can also flexibly select the transmission resources for signal transmission.

[0009] Combined with the first aspect above, in a possible implementation, the frequency-domain position of the downlink carrier of the above-mentioned terminal device overlaps with the frequency-domain position of the first uplink carrier, and the first uplink carrier is one of the multiple uplink carriers. In this way, since the frequency-domain resources used by the uplink and downlink links are the same, the consistency of the uplink and downlink links can be ensured.

[0010] Combined with the first aspect above, in a possible implementation, the time-domain resources of the downlink carrier and the time-domain resources of the first uplink carrier are time-division limited, and the frequency-domain resources of the downlink carrier and the frequency-domain resources of the first uplink carrier are time-division limited, so that the terminal device can make full use of all transmission resources when transmitting each data stream, improving the transmission efficiency.

[0011] Combined with the first aspect above, in a possible implementation, the frequency-domain position of the downlink carrier does not overlap with the frequency-domain position of the second uplink carrier, and the second uplink carrier is a carrier other than the first uplink carrier among the multiple uplink carriers. In this way, by configuring an uplink carrier whose frequency-domain position does not overlap with that of the downlink carrier, the uplink carrier can continuously transmit uplink signals, increasing the bandwidth for transmitting uplink data.

[0012] Combined with the first aspect above, in a possible implementation, there is a frequency-domain interval between the downlink carrier and the second uplink carrier in the frequency domain, and the size of the frequency-domain interval is predefined; or, the size of the frequency-domain interval is related to the capabilities of the terminal device. In this way, by setting a frequency-domain interval between the uplink and downlink carriers, uplink-downlink interference can be avoided, which affects the transmission efficiency.

[0013] Combined with the first aspect above, in a possible implementation, the downlink carrier and the second uplink carrier support simultaneous signal transmission, so that the terminal device can efficiently utilize all bandwidths.

[0014] In a second aspect, a communication method is provided. This method can be executed by a network device, or by components of the network device, such as a processor, a chip, or a chip system of the network device, etc., and can also be implemented by a logic module or software that can implement all or part of the functions of the network device. Taking the example that this method can be executed by a network device, the method includes: determining first configuration information, where the first configuration information is used to configure multiple uplink carriers, and the multiple uplink carriers are in the same frequency band, and sending the first configuration information to the terminal device.

[0015] In the above technical solution, since the first configuration information sent by the network device to the terminal device is used to configure multiple uplink carriers within the same frequency band, compared with the existing configuration of one uplink carrier within one frequency band, by increasing the number of uplink carriers, the bandwidth for the terminal device to transmit uplink data is improved, the uplink transmission opportunities are increased, thereby enhancing the uplink coverage and capacity, and further enabling the support of low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0016] Combined with the second aspect above, in a possible implementation manner, the above-mentioned multiple uplink carriers support simultaneous signal transmission, further increasing the bandwidth for transmitting uplink data.

[0017] Combined with the second aspect above, in a possible implementation manner, the above-mentioned multiple uplink carriers support time-division signal transmission, enabling the terminal device to flexibly select the transmission resources for signal transmission.

[0018] Combined with the second aspect above, in a possible implementation manner, the frequency-domain position of the downlink carrier of the above-mentioned terminal device overlaps with the frequency-domain position of the first uplink carrier, and the first uplink carrier is one of the multiple uplink carriers. In this way, since the frequency-domain resources used by the uplink and downlink links are the same, the consistency of the uplink and downlink links can be ensured.

[0019] Combined with the second aspect above, in a possible implementation manner, the time-domain resources of the downlink carrier and the time-domain resources of the first uplink carrier are time-division limited, and the frequency-domain resources of the downlink carrier and the frequency-domain resources of the first uplink carrier are time-division limited, enabling the terminal device to make full use of all transmission resources when transmitting each data stream and improving the transmission efficiency.

[0020] Combined with the second aspect above, in a possible implementation manner, the frequency-domain position of the downlink carrier does not overlap with the frequency-domain position of the second uplink carrier, and the second uplink carrier is a carrier other than the first uplink carrier among the multiple uplink carriers. In this way, configuring an uplink carrier whose frequency-domain position does not overlap with that of the downlink carrier enables the uplink carrier to continuously transmit uplink signals, increasing the bandwidth for transmitting uplink data.

[0021] Combined with the second aspect above, in a possible implementation manner, there is a frequency-domain interval between the downlink carrier and the second uplink carrier, and the size of the frequency-domain interval is predefined; or, the size of the frequency-domain interval is related to the capabilities of the terminal device. In this way, by setting a frequency-domain interval between the uplink and downlink carriers, uplink-downlink interference is avoided, which may affect the transmission efficiency.

[0022] Combined with the second aspect above, in a possible implementation manner, the downlink carrier and the second uplink carrier support simultaneous signal transmission, enabling the terminal device to efficiently utilize all bandwidths.

[0023] In a third aspect, a communication method is provided. This method can be executed by a terminal device, or by components of the terminal device, such as a processor, a chip, or a chip system of the terminal device, etc., or can also be implemented by a logic module or software that can implement all or part of the functions of the terminal device. Taking the example that this method can be executed by the terminal device, the method includes: receiving second configuration information from a network device, where the second configuration information is used to reconfigure a first time-domain resource into a second time-domain resource, and the transmission directions of the first time-domain resource and the second time-domain resource are different, and communicating with the network device according to the second time-domain resource.

[0024] In the above technical solution, since the terminal device can receive the second configuration information of the network device, and the second configuration information is used to reconfigure the first time-domain resource into a second time-domain resource with a different transmission direction, when the uplink transmission delay requirement of the terminal device is low, or the uplink data traffic demand is large, or the uplink coverage requirement is high, the downlink time-domain resource is configured as the uplink time-domain resource, which improves the bandwidth for the terminal device to transmit uplink data, increases the opportunity for uplink transmission, thereby improving the uplink coverage and capacity, and further being able to support services with low latency, large uplink data traffic demand, and high uplink coverage requirements.

[0025] Combined with the above third aspect, in a possible implementation manner, the above first time-domain resource is a time-domain resource other than the common time-domain resource, and the common time-domain resource is used to receive broadcast signals. In this way, when reconfiguring the time-domain resource, the common time-domain resource is not reconfigured to ensure that the terminal device can receive the broadcast signals of the network device.

[0026] Combined with the above third aspect, in a possible implementation manner, the above time-domain resource is a frame or a subframe or a time slot or a symbol.

[0027] In a fourth aspect, a communication method is provided. This method can be executed by a network device, or by components of the network device, such as a processor, a chip, or a chip system of the network device, etc., or can also be implemented by a logic module or software that can implement all or part of the functions of the network device. Taking the example that this method can be executed by the network device, the method includes: determining second configuration information, where the second configuration information is used to reconfigure a first time-domain resource into a second time-domain resource, and the transmission directions of the first time-domain resource and the second time-domain resource are different, and sending the second configuration information to the terminal device.

[0028] In the above technical solution, since the second configuration information sent by the network device to the terminal device is used to reconfigure the first time-domain resource into a second time-domain resource with a different transmission direction, so as to configure the downlink time-domain resource as the uplink time-domain resource when the uplink transmission delay requirement of the terminal device is low, or the uplink data traffic requirement is large, or the uplink coverage requirement is high, the bandwidth for the terminal device to transmit uplink data is improved, the opportunity for uplink transmission is increased, thereby improving the uplink coverage and capacity, and further enabling the support of low-latency services, services with large uplink data traffic requirements, and services with high uplink coverage requirements.

[0029] Combined with the above fourth aspect, in a possible implementation manner, the above first time-domain resource is a time-domain resource other than the common time-domain resource, and the common time-domain resource is used to receive broadcast signals. In this way, when the terminal device reconfigures the time-domain resource, the common time-domain resource is not reconfigured to ensure that the terminal device can receive the broadcast signal of the network device.

[0030] Combined with the above fourth aspect, in a possible implementation manner, the above time-domain resource is a frame or a subframe or a time slot or a symbol.

[0031] In a fifth aspect, a communication device is provided for implementing the above various methods. The communication device includes corresponding modules, units, or means for implementing the above methods, and the modules, units, or means can be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

[0032] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, which can also be referred to as a transceiver unit, is used to implement the sending and / or receiving functions in any of the above aspects and any possible implementation manners thereof. The transceiver module can be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module can be used to implement the processing functions in any of the above aspects and any possible implementation manners thereof.

[0033] In some possible designs, the transceiver module includes a sending module and a receiving module, which are respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation manners thereof.

[0034] In a sixth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device is enabled to execute the methods in any of the above aspects.

[0035] In a seventh aspect, a communication device is provided, including: a processor and a communication interface; the communication interface is used to communicate with modules outside the communication device; the processor is used to execute a computer program or instruction, so that the communication device executes the method of any of the above aspects.

[0036] In an eighth aspect, a communication device is provided, including: at least one processor; the processor is used to execute a computer program or instruction stored in a memory, so that the communication device executes the method of any of the above aspects. The memory may be coupled to the processor or may be independent of the processor.

[0037] Among them, the communication device in the fifth to eighth aspects above may be: a terminal device in any one or any implementation manner of the first or third aspect above, or a device including the above terminal device, or a device included in the above terminal device, such as a chip; the communication device in the fifth to eighth aspects above may be: a network device in any one or any implementation manner of the second or fourth aspect above, or a device including the above network device, or a device included in the above network device, such as a chip.

[0038] In a ninth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When it runs on a communication device, the communication device can execute the method of any of the above aspects or any of its implementation manners.

[0039] In a tenth aspect, a computer program product including instructions is provided. When it runs on a communication device, the communication device can execute the method of any of the above aspects or any of its implementation manners.

[0040] In an eleventh aspect, a communication device (for example, the communication device may be a chip or a chip system) is provided, and the communication device includes a processor for implementing the functions involved in any of the above aspects or any of its implementation manners.

[0041] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0042] In some possible designs, when the communication device is a chip system, it may be composed of chips or may include chips and other discrete devices.

[0043] It can be understood that when the communication device provided in any of the sixth to ninth aspects is a chip, the above-mentioned sending action / function can be understood as output, and the above-mentioned receiving action / function can be understood as input.

[0044] In a twelfth aspect, a communication system is provided, which includes a terminal device for performing the method described in the first aspect or the third aspect above, and a network device for performing the method described in the second aspect or the fourth aspect above.

[0045] Among them, for the technical effects brought by any implementation manner in the fifth aspect to the twelfth aspect, reference can be made to the technical effects brought by the corresponding implementation manners in the first aspect to the fourth aspect, which will not be elaborated here.

[0046] It should be noted that, for any possible implementation manner of any one of the above aspects, under the premise that the solutions do not conflict, they can be combined. Description of the Drawings

[0047] Figure 1 Schematic diagrams of uplink and downlink carriers in multiple duplex modes provided in the related art;

[0048] Figure 2 Schematic diagram of the frame ratio of uplink and downlink carriers in a TDD mode provided in the related art;

[0049] Figure 3 Schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0050] Figure 4 Schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0051] Figure 5 Schematic diagram of the process flow of a communication method provided in an embodiment of the present application;

[0052] Figure 6 Schematic diagram of the frequency-domain positions of uplink and downlink carriers of a communication method provided in an embodiment of the present application;

[0053] Figure 7 Schematic diagram of uplink and downlink carriers of a communication method provided in an embodiment of the present application;

[0054] Figure 8 Schematic diagram of the process flow of another communication method provided in an embodiment of the present application;

[0055] Figure 9 Schematic diagram of the frame ratio of a communication method provided in an embodiment of the present application;

[0056] Figure 10 Schematic diagram of the frame ratio of another communication method provided in an embodiment of the present application;

[0057] Figure 11 Schematic diagram of the frame ratio of another communication method provided in an embodiment of the present application;

[0058] Figure 12 This is a schematic structural diagram of another communication device provided by an embodiment of the present application. Detailed implementation manners

[0059] In the description of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship. For example, A / B may represent A or B; "and / or" in the present application is merely a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural.

[0060] In the description of the present application, unless otherwise specified, "a plurality of" means two or more than two. "At least one (item) or similar expressions below" refers to any combination of these items, including any combination of single item (item) or plural items (items). For example, at least one (item) of a, b, and (or) c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple.

[0061] In addition, for the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and roles. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit to be different.

[0062] In the embodiments of the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplarily" or "for example" aims to present relevant concepts in a specific way for easy understanding.

[0063] It can be understood that the "embodiments" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, throughout the specification, the various embodiments do not necessarily refer to the same embodiments. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It can be understood that in the various embodiments of the present application, the magnitudes of the sequence numbers of the various processes do not mean the order of execution, and the execution order of the various processes should be determined according to their functions and internal logics, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0064] It can be understood that some optional features in the embodiments of the present application can, in some scenarios, be implemented independently without relying on other features, such as the current solution they are based on, to solve corresponding technical problems and achieve corresponding effects. In some scenarios, they can also be combined with other features according to requirements. Correspondingly, the devices given in the embodiments of the present application can also implement these features or functions accordingly, which will not be elaborated here.

[0065] In the present application, unless otherwise specified, the same or similar parts among various embodiments can be referred to each other. In each embodiment of the present application, if there is no special instruction and logical conflict, the terms and / or descriptions among different embodiments are consistent and can be cited mutually. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships. The embodiments of the present application described below do not constitute a limitation on the protection scope of the present application.

[0066] With the continuous emergence of new services such as high-definition video, AR / VR, etc., the demand for wireless data traffic is growing rapidly. In order to meet the increasing wireless transmission requirements, wireless communication technologies need to further evolve to improve the network capacity and transmission rate of wireless networks. In the evolution direction of wireless communication technologies, further exploring the frequency resources of wireless communication is a very important dimension.

[0067] In the related art, there are duplex modes such as time division duplex (TDD), frequency division duplex (FDD), supplementary uplink (SUL), and supplementary downlink (SDL). As Figure 1 shown, in the cell corresponding to TDD, the center frequencies of the uplink carrier and the downlink carrier are aligned and used in a time-division manner through the frame ratio configuration in the time domain; in the cell corresponding to FDD, the center frequencies of the uplink carrier and the downlink carrier are not aligned; the carrier corresponding to SUL can only be an uplink carrier and needs to be used together with the uplink and downlink carriers of FDD or TDD; in the cell corresponding to SDL, there is only a downlink carrier.

[0068] Table 1

[0069] NR Operating Band Uplink Operating Band Downlink Operating Band Duplex Mode n1 1920 MHz - 1980 MHz 2110 MHz - 2170 MHz FDD n29 N / A 717 MHz - 728 MHz SDL n34 2010 MHz - 2025 MHz 2010 MHz - 2025 MHz TDD n80 1710 MHz - 1785 MHz N / A SUL

[0070] It should be noted that Table 1 lists the corresponding new radio (NR) operating frequency bands under each duplex mode, and the corresponding uplink operating frequency bands and downlink operating frequency bands under each NR operating frequency band.

[0071] For the next-generation 6G communication technology, the potentially available new spectrum is U6G (6425 MHz - 7125 MHz). Since the corresponding frequency band of this spectrum is high, the corresponding duplex mode is TDD. However, in the TDD mode, the uplink carrier and the downlink carrier are time-division multiplexed in terms of transmission resources. As Figure 2 shown, the proportion of uplink transmission resources (such as U) is usually less than that of downlink transmission resources (such as D), and the U6G frequency band is relatively high, resulting in large uplink coverage loss and low capacity. Therefore, services that are sensitive to latency, have large uplink data traffic, and have high requirements for uplink coverage cannot be well supported.

[0072] To solve the problem that the uplink transmission proportion is relatively small in the existing TDD mode and services with low latency and high uplink traffic requirements cannot be well supported, the embodiments of the present application provide related communication methods, devices, and systems. On the one hand, by configuring multiple uplink carriers within a frequency band, the uplink transmission bandwidth is increased. Specifically, the following Figure 5 shown embodiments can be referred to. On the other hand, by reconfiguring the time-domain resources in one transmission direction into the time-domain resources in the other transmission direction, the uplink transmission bandwidth is increased. Specifically, the following Figure 8 shown embodiments can be referred to. The implementation manners of the embodiments of the present application will be described in detail below with reference to the accompanying drawings of the specification.

[0073] To facilitate the understanding of the embodiments of the present application, the following points are explained before introducing the embodiments of the present application.

[0074] 1. In the embodiments of the present application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. Let the information indicated by a certain piece of information (such as the indication information below) be the information to be indicated. Then, in the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated, etc. It is also possible to indirectly indicate the information to be indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to only indicate a part of the information to be indicated, while the other parts of the information to be indicated are known or pre-agreed. For example, it is also possible to use the pre-agreed (such as protocol-defined) arrangement order of each piece of information to achieve the indication of specific information, thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each piece of information can be identified and indicated uniformly to reduce the indication overhead caused by separately indicating the same information.

[0075] In addition, the specific indication method can also be various existing indication methods, such as but not limited to, the above indication methods and their various combinations, etc. The specific details of various indication methods can refer to the prior art and will not be elaborated herein. As can be seen from the above, for example, when it is necessary to indicate multiple pieces of information of the same type, there may be a situation where the indication methods of different pieces of information are different. In the specific implementation process, the required indication method can be selected according to specific needs, and the present application embodiment does not limit the selected indication method. In this way, the indication methods involved in the embodiments of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0076] It should be understood that the information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending periods and / or sending times of these sub-information can be the same or different. The present application embodiment does not limit the specific sending method. Among them, the sending periods and / or sending times of these sub-information can be predefined, such as predefined according to a protocol, or can be configured by the transmitting device by sending configuration information to the receiving device. Among them, the configuration information can, for example but not limited to, include radio resource control signaling, such as radio resource control (RRC) signaling, medium access control (MAC) layer signaling, physical layer signaling, or a combination of one or at least two of downlink control information (DCI).

[0077] 2. "Predefined" or "preconfigured" can be implemented by pre-saving corresponding codes, tables or other ways that can be used to indicate relevant information in a device (such as a terminal device or a network device). The present application embodiment does not limit its specific implementation method. Among them, "saving" can mean saving in one or more memories. One or more memories can be set separately or integrated in an encoder, decoder, processor, or communication device. One or more memories can also be partially set separately and partially integrated in a decoder, processor, or communication device. The type of memory can be any form of storage medium, and the present application embodiment does not limit this.

[0078] 3. In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if", and "when" all mean that the device (such as the first terminal device, the second terminal device, or the network device) will perform corresponding processing under a certain objective situation, which does not limit the time, and it is not required that the device (such as the first terminal device, the second terminal device, or the network device) must have a judgment action when implementing, nor does it mean that there are other limitations.

[0079] The embodiments of the present application can be applied to a Long Term Evolution (LTE) system or a New Radio (NR) system (which can also be referred to as a 5G system), a Vehicle-to-Everything (V2X) system, a system with a hybrid network of LTE and NR, or a device-to-device (D2D) system, a machine-to-machine (M2M) communication system, an Internet of Things (IoT) system (such as a Narrow Band Internet of Things (NB-IoT) system), and other next-generation communication systems. Alternatively, the communication system can also be a non-3GPP communication system, without limitation.

[0080] In addition, the communication architecture and service scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those of ordinary skill in the art will know that with the evolution of the communication architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0081] As Figure 3 shown, it is a schematic structural diagram of a communication system provided by an embodiment of the present application. Figure 3 Taking the communication system 300 including a network device 310 and a terminal device 320 as an example for illustration. Among them, uplink and downlink transmissions can be carried out between the network device 310 and the terminal device 320 by using air interface resources. Optionally, the air interface resources can include at least one of time domain resources, frequency domain resources, code resources, and spatial resources.

[0082] It should be noted that Figure 3 the system diagram shown takes the communication system including one network device and one terminal device as an example for illustration. Of course, the communication system can include a greater number of network devices and terminal devices. In addition, the wireless communication between devices can include: wireless communication between a network device and a terminal device, wireless communication between network devices, and wireless communication between terminal devices. The embodiments of the present application do not make specific limitations on this.

[0083] In addition, the "wireless communication" in the embodiments of the present application can also be abbreviated as "communication", and "communication" can also be described as "data transmission", "information transmission", or "transmission". The embodiments of the present application do not make specific limitations on this.

[0084] Optionally, the network device in the embodiments of the present application may also be referred to as an access network node, a radio access network (RAN) node, a RAN entity, or an access node, etc., located on the network side of the above communication system, used to assist the terminal device to achieve wireless access, and is a device with wireless transceiver functions or a chip or chip system that can be set in the device. The network device includes but is not limited to: base station (BS), evolved NodeB (eNodeB), access point (AP), transmission reception point (TRP or transmission point, TP), next generation NodeB (gNB), next generation base station in a 6G mobile communication system, base station in a future mobile communication system, or access node in a Wi-Fi system, etc. The network device may be a macro base station, a micro base station or an indoor station, a relay node or a donor node, an open radio access network (ORAN), or a radio controller in a centralized radio access network (CRAN) scenario. The network device may also be one or a group of (including multiple antenna panels) antenna panels of a base station in 5G, or, may also be a network node constituting a gNB, a TRP, or a TP or a transmission measurement function (TMF), such as a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), a road side unit (RSU) with base station functions. Optionally, the network device may also be a server, a wearable device, a vehicle or an in-vehicle device, etc. For example, the network device in V2X technology may be an RSU. All or part of the functions of the network device in the present application may also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform). The network device in the present application may also be a logical node, a logical module or software that can implement all or part of the network device functions.

[0085] Among them, the CU and the DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio device or a radio unit, such as included in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). It can be understood that the network device can be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be classified as a network device in the radio access network (RAN), or the CU can be classified as a network device in the core network (CN), which is not limited here.

[0086] In different systems, the CU (or CU-CP and CU-UP), DU, or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be called O-CU (Open CU), the DU can also be called O-DU, the CU-CP can also be called O-CU-CP, the CU-UP can also be called O-CU-UP, and the RU can also be called O-RU. For the convenience of description, in this application, the CU, CU-CP, CU-UP, DU, and RU are used as examples for description. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0087] In the embodiments of this application, the form of the network device is not limited. The device for implementing the functions of the network device can be the network device; it can also be a device capable of supporting the network device to implement this function, such as a chip system. This device can be installed in the network device or used in combination with the network device.

[0088] Optionally, the base station in the embodiments of this application is a device deployed in the radio access network that can communicate wirelessly with a terminal. Among them, the base station can include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, home base stations, TRPs, transmitting points (TPs), mobile switching centers, etc. The embodiments of this application do not make specific limitations on this.

[0089] Optionally, the terminal device involved in this application may also be referred to as a terminal, which can be a device with wireless transceiver functions. It can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as a ship, etc.); it can also be deployed in the air (such as an airplane, a balloon, a satellite, etc.). The terminal device can be a UE. Among them, the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with wireless communication functions. Exemplarily, the UE can be a mobile phone, a tablet computer or a computer with wireless transceiver functions. The terminal device can also be a VR (virtual reality) terminal device, an AR (augmented reality) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote medical treatment, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, etc.

[0090] In the embodiments of this application, the form of the terminal device is not limited. The device for implementing the functions of the terminal device can be the terminal device; it can also be a device that can support the terminal device to implement this function, such as a chip system, and this device can be installed in the terminal device or used in combination with the terminal device.

[0091] In a possible implementation manner, the network device and the terminal device in the embodiments of this application can also be referred to as communication devices, which can be a general device or a dedicated device, and this application does not make specific limitations in this regard.

[0092] In a possible implementation manner, the relevant functions of the terminal device or the network device in the embodiments of this application can be implemented by one device, can also be implemented by multiple devices together, and can also be implemented by one or more functional modules in one device. This application does not make specific limitations in this regard. It can be understood that the above functions can be network elements in a hardware device, can also be software functions running on dedicated hardware, or a combination of hardware and software, or virtualized functions instantiated on a platform (such as a cloud platform).

[0093] When specifically implemented, Figure 3 both the network device and the terminal device shown can adopt Figure 4 the shown composition structure, or include Figure 4 the shown components. Figure 4Schematic diagram of the composition of a communication device 400 provided by an embodiment of the present application. The communication device 400 includes one or more processors 411. The processor 411 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control a communication device (such as a network device, a terminal device, or a chip, etc.), execute software programs, and process data of software programs.

[0094] Optionally, in one design, the processor 411 may include a program 413 (sometimes also referred to as code or instructions), and the program 413 can be run on the processor 411, so that the communication device 400 executes the methods described in the following embodiments.

[0095] Optionally, the communication device 400 may include one or more memories 412, on which there is a program 414 (sometimes also referred to as code or instructions), and the program 414 can be run on the processor 411, so that the communication device 400 executes the methods described in the following method embodiments.

[0096] Optionally, the processor 411 and / or the memory 412 may include artificial intelligence (AI) modules 417, 418, and the AI modules are used to implement AI-related functions. The AI modules can be implemented in a software, hardware, or a combination of software and hardware manner. For example, the AI module may include a RAN intelligent controller (RIC) module. For example, the AI module may be a near-real-time RIC or a non-real-time RIC.

[0097] Optionally, data may also be stored in the processor 411 and / or the memory 412. The processor and the memory may be provided separately or integrated together.

[0098] Optionally, the communication device 400 may further include a transceiver 415 and / or an antenna 416. The processor 411 is sometimes also referred to as a processing unit and controls a communication device (such as a network device or a terminal device). The transceiver 415 is sometimes also referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the communication device through the antenna 416.

[0099] Optionally, in the embodiments of the present application, the processor 411 is a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The processor 411 may also be other devices with processing functions, such as circuits, devices, or software modules, without limitation.

[0100] Optionally, in the embodiments of the present application, the memory 412 may be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, or a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions. It may also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM), or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, without limitation.

[0101] Although not shown, as an optional implementation, the communication device 400 further includes an output device and an input device. Exemplarily, the input device is a device such as a keyboard, a mouse, a microphone, or a joystick, and the output device is a device such as a display screen or a speaker.

[0102] It should be noted that the communication device 400 may be a desktop computer, a laptop computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device with a Figure 4 similar structure therein. In addition, Figure 4 the shown component structure does not constitute a limitation on the communication device. Except for Figure 4 the components shown, the communication device may include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0103] In the embodiments of the present application, the chip system may be composed of chips or may include chips and other discrete devices.

[0104] In addition, actions, terms, etc. involved between the embodiments of the present application can be referred to each other without limitation. The message names or parameter names in the messages exchanged between devices in the embodiments of the present application are only examples, and other names can also be used in specific implementations without limitation.

[0105] Next, in conjunction with Figure 3 and Figure 4 , with reference to the following Figures 5 to 11 , the communication method provided by the embodiments of the present application will be described.

[0106] It should be noted that in the following embodiments of the present application, the message names between network elements, the names of each parameter, or the names of each piece of information are only examples, and other names can also be used in other embodiments. The communication method provided by the present application does not make specific limitations on this.

[0107] It can be understood that in the embodiments of the present application, each network element can execute some or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application can also execute other operations or various deformations of the operations. In addition, each step can be executed in a different order presented in the embodiments of the present application, and it is possible not to execute all the operations in the embodiments of the present application.

[0108] Figure 5 is a schematic diagram of an example of the communication method provided by the embodiments of the present application. This method is described by taking the interaction between a terminal device and a network device as an example. Of course, the entity that executes the actions of the terminal device in this method can also be a device / module in the terminal device; the entity that executes the actions of the network device in this method can also be a device / module in the network device. The embodiments of the present application do not make specific limitations on this.

[0109] Exemplarily, as Figure 5 shown, the communication method provided by the embodiments of the present application includes:

[0110] S501. The network device determines first configuration information.

[0111] Among them, the first configuration information is used to configure multiple uplink carriers, and the multiple uplink carriers are in the same frequency band. For example, the multiple uplink carriers correspond to the same frequency band number, and the frequency band corresponding to the frequency band number can be the U6G (6425 MHz - 7125 MHz) frequency band.

[0112] In the embodiments of the present application, the first configuration information further includes the configuration information of the downlink carrier, the bandwidth configuration information of the uplink carrier, the frequency domain position information of the uplink carrier, etc.

[0113] In the embodiments of the present application, the network device can configure multiple uplink carriers in the same frequency band according to the carrier configuration method corresponding to the first configuration information.

[0114] Exemplarily, multiple uplink carriers may be configured on the U6G frequency band, and the uplink carriers are used for uplink signal transmission.

[0115] S502. The network device sends first configuration information to the terminal device. Correspondingly, the terminal device receives the first configuration information from the network device.

[0116] In an optional implementation, the network device may broadcast the first configuration information.

[0117] Exemplarily, after determining the first configuration information, the network device may send the first configuration information to the terminal device in a broadcast form. At this time, the first configuration information received by all terminal devices within the coverage of the network device is the same.

[0118] Optionally, in the embodiments of the present application, the above multiple uplink carriers support simultaneous signal transmission; also support time-division signal transmission; also support simultaneous signal transmission by a part of the uplink carriers among the multiple uplink carriers and time-division signal transmission by another part of the uplink carriers.

[0119] Example 1. The multiple uplink carriers support simultaneous signal transmission. Taking the multiple uplink carriers including uplink carrier 1, uplink carrier 2, and uplink carrier 3 as an example. The terminal device may simultaneously send uplink signals on uplink carrier 1, uplink carrier 2, and uplink carrier 3.

[0120] Example 2. The multiple uplink carriers support time-division signal transmission. Combining with Example 1, the terminal device may stagger the transmission of signals on uplink carrier 1, uplink carrier 2, and uplink carrier 3 respectively, that is, the times when the terminal device sends uplink signals on uplink carrier 1, uplink carrier 2, and uplink carrier 3 are all different.

[0121] Example 3. The multiple uplink carriers support simultaneous signal transmission and time-division signal transmission. Combining with Example 1, the terminal device may simultaneously send uplink signals on uplink carrier 1 and uplink carrier 2, and the time when the terminal device sends uplink signals on uplink carrier 3 is different from the time when the terminal device sends uplink signals on uplink carrier 1 and uplink carrier 2.

[0122] It should be noted that the terminal device determines whether multiple uplink carriers can simultaneously send uplink signals according to the capabilities of the terminal device. For example, the capabilities of the terminal device may include the chip performance of the terminal device, the number of chips, etc. For example, if the chip performance value for signal transmission in the terminal device is greater than or equal to a preset performance value or the number of chips for signal transmission in the terminal device is greater than or equal to a preset number, the terminal device may simultaneously send uplink signals on multiple uplink carriers. The preset number may be set as needed. For example, it may be 2, 3, or more, without limitation.

[0123] Optionally, in the embodiments of the present application, among multiple uplink carriers, there are uplink carriers whose frequency domain positions overlap with the frequency domain position of the downlink carrier of the terminal device, and there are also uplink carriers whose frequency domain positions do not overlap with the frequency domain position of the downlink carrier of the terminal device. For the convenience of subsequent description, in the embodiments of the present application, the uplink carrier that overlaps with the downlink carrier is referred to as the first uplink carrier, and the uplink carrier that does not overlap with the downlink carrier is referred to as the second uplink carrier, which will not be elaborated hereinafter.

[0124] In the embodiments of the present application, the downlink carrier of the terminal device can be the existing downlink carrier of the terminal device, or can be configured when the terminal device configures multiple uplink carriers.

[0125] Among them, when the number of carriers whose frequency domain positions overlap with the frequency domain position of the downlink carrier of the terminal device among multiple uplink carriers is 1. The overlap between the frequency domain position of the downlink carrier and the frequency domain position of the uplink carrier means that the frequency domain position of the downlink carrier partially overlaps with the frequency domain position of the uplink carrier, or the frequency domain position of the downlink carrier completely overlaps with the frequency domain position of the uplink carrier, or the frequency domain position of the downlink carrier contains the frequency domain position of the uplink carrier.

[0126] In one example, as Figure 6 shown in (a) of, the frequency domain position of the downlink carrier partially overlaps with the frequency domain position of the first uplink carrier. For example, the starting point of the frequency domain of the downlink carrier is aligned with the center frequency point of the first uplink carrier.

[0127] In another example, as Figure 6 shown in (b) of, the frequency domain position of the downlink carrier completely overlaps with the frequency domain position of the first uplink carrier, that is, the center frequency points of the downlink carrier and the first uplink carrier are aligned in the frequency domain. For example, the starting point of the frequency domain of the downlink carrier is aligned with the starting point of the frequency domain of the first uplink carrier, and the ending point of the frequency domain of the downlink carrier is aligned with the ending point of the frequency domain of the first uplink carrier.

[0128] Optionally, the time domain resources of the downlink carrier and the time domain resources of the first uplink carrier are time division limited. Specifically, in the time domain, the downlink carrier and the first uplink carrier of the terminal device are configured by the existing TDD frame ratio method.

[0129] Optionally, the frequency domain resources of the downlink carrier and the frequency domain resources of the first uplink carrier are time division limited. Specifically, the terminal device uses the frequency domain resources in a time division multiplexing (TDM) manner on the downlink carrier and the first uplink carrier.

[0130] Optionally, in the embodiments of the present application, the frequency domain position of the downlink carrier does not overlap with the frequency domain position of the second uplink carrier, and the downlink carrier and the second uplink carrier support simultaneous signal transmission.

[0131] Furthermore, there is a frequency-domain interval between the downlink carrier and the second uplink carrier in the frequency domain, and the size of the frequency-domain interval is predefined; alternatively, the size of the frequency-domain interval is related to the capabilities of the terminal device.

[0132] In the embodiments of the present application, the above frequency-domain interval may also be referred to as a guard interval, an interval, a transition band, or other names, without limitation. This guard interval can avoid interference problems in uplink and downlink transmissions.

[0133] In one example, the size of the frequency-domain interval may be a preset value. For example, this value may be 5M or 10M, without limitation.

[0134] In another example, the size of the frequency-domain interval may be related to the capabilities of the terminal device. For example, the size of the frequency-domain interval may be defined according to the bandwidth of the downlink carrier and the bandwidth of the second uplink carrier, or determined according to the capabilities reported by the terminal.

[0135] Exemplarily, taking the above multiple uplink carriers including two uplink carriers as an example. As Figure 7 shown, assume that the terminal device is configured with a downlink carrier A, an uplink carrier B, and an uplink carrier C. Among them, the downlink carrier A, the uplink carrier B, and the uplink carrier C correspond to the same frequency band number, and the center frequency points of the downlink carrier A and the uplink carrier B are aligned in the frequency domain; the downlink carrier A and the uplink carrier C do not overlap in the frequency domain, the downlink carrier A and the uplink carrier C support simultaneous signal transmission, and there is a frequency-domain interval (such as a transition band) between the downlink carrier A and the uplink carrier C in the frequency domain. This frequency-domain interval is predefined, or this frequency-domain interval is defined according to the bandwidths of the downlink carrier A and the uplink carrier C. For example, the width of the frequency-domain interval on the predefined frequency band n104 is 5M.

[0136] S503. The terminal device communicates with the network device according to multiple uplink carriers.

[0137] In the embodiments of the present application, since the terminal device obtains multiple uplink carriers, the terminal device can send data to the network device according to the multiple uplink carriers to implement uplink communication with the network device.

[0138] In the above technical solution, the network device sends the first configuration information to the terminal device, and the first configuration information is used to configure multiple uplink carriers within one frequency band. Therefore, compared with the existing single uplink carrier, by increasing the number of uplink carriers, the bandwidth for the terminal device to transmit uplink data is increased, the uplink transmission opportunity is increased, thereby improving the uplink coverage and capacity. Furthermore, the terminal device can support services with low latency, large uplink data traffic requirements, and high uplink coverage requirements.

[0139] Figure 8It is a schematic diagram of another example of the communication method provided by the embodiments of the present application. This method is described by taking the interaction between a terminal device and a network device as an example. Of course, the entity that executes the actions of the terminal device in this method can also be a device / module in the terminal device; the entity that executes the actions of the network device in this method can also be a device / module in the network device. The embodiments of the present application do not make specific limitations in this regard.

[0140] Exemplarily, as Figure 8 shown, the communication method provided by the embodiments of the present application includes:

[0141] S801. The network device determines second configuration information.

[0142] Among them, the second configuration information is used to reconfigure the first time-domain resource into a second time-domain resource, and the transmission directions of the first time-domain resource and the second time-domain resource are different. For example, when the first time-domain resource is a downlink time-domain resource, the second time-domain resource is an uplink time-domain resource; or when the first time-domain resource is an uplink time-domain resource, the second time-domain resource is a downlink time-domain resource.

[0143] In the embodiments of the present application, the second configuration information can be UE-specific RRC signaling or MAC control element (CE) signaling or physical layer downlink control signaling.

[0144] Exemplarily, the network device can reconfigure the first time-domain resource through RRC signaling to obtain the second time-domain resource.

[0145] Optionally, in the embodiments of the present application, when the terminal device initially accesses the cell, the network device can broadcast third configuration information to configure the first time-domain resource for the terminal device, and then the network device determines the second configuration information to reconfigure the first time-domain resource for the terminal device.

[0146] Among them, the time-domain resource can be a frame or a subframe or a time slot or a symbol, and the third configuration information can be system information block 1 (SIB1).

[0147] In one example, when the terminal device initially accesses the cell, the network device can broadcast the frame ratio mode of the uplink and downlink carriers (such as the frame ratio in the TDD mode) in SIB1. At this time, after receiving SIB1, the terminal device can obtain the first time-domain resource according to SIB1, and the first time-domain resource includes the first downlink symbol, the first uplink symbol, and the first flexible symbol.

[0148] In another example, when the network device initializes the access of the terminal device to the cell, the frame ratio mode of the uplink and downlink carriers is not broadcast in SIB1. At this time, after receiving SIB1, all symbols in the first time-domain resource obtained by the terminal device according to this SIB1 are flexible symbols, that is, the transmission directions of all symbols are flexible.

[0149] Optionally, the network device may also configure common time-domain resources in SIB1, and the common time-domain resources are used to transmit information.

[0150] In one example, the network device may configure common downlink time-domain resources (such as common downlink symbols) in SIB1, and the common downlink time-domain resources are used for the transmission of broadcast signals.

[0151] In another example, the network device may configure common uplink time-domain resources (such as common uplink symbols) in SIB1, and the common uplink resources are used for the unified feedback of the terminal device.

[0152] S802. The network device sends second configuration information to the terminal device. Correspondingly, the terminal device receives the second configuration information from the network device.

[0153] In the embodiments of the present application, when the second configuration information is an RRC signaling, the network device may send an RRC signaling to the terminal device.

[0154] Further, in the case where there are multiple terminal devices, the RRC signals sent by the network device to each terminal device are different.

[0155] Exemplarily, the network device may send different RRC signals to multiple terminal devices respectively to configure different time-domain resources for each terminal device. For example, one terminal device is configured to obtain more uplink time-domain resources than downlink time-domain resources, and another terminal device is configured to obtain more downlink time-domain resources than uplink time-domain resources.

[0156] In one example, if the uplink data transmission requirement of the terminal device is large, the network device may reconfigure the first time-domain resource (such as a downlink symbol) into a second time-domain resource (such as an uplink symbol); if the downlink transmission requirement of the terminal device is large, the network device may reconfigure the first time-domain resource (such as an uplink symbol) into a second time-domain resource (such as a downlink symbol).

[0157] In yet another example, the network device may send second configuration information to multiple terminal devices. For example, the multiple terminal devices may include terminal device 1 and terminal device 2. The first time-domain resource is reconfigured to obtain the corresponding second time-domain resource. The transmission directions of the first time-domain resources of terminal device 1 and terminal device 2 may be the same or different.

[0158] For example, if the uplink data transmission requirement of the terminal device 1 is large, the first time-domain resource of the terminal device 1 can be a downlink time-domain resource, such as a downlink symbol. Correspondingly, the second time-domain resource reconfigured by the terminal device 1 can be an uplink symbol. In this way, the terminal device 1 can send an uplink signal to the network device through the reconfigured second time-domain resource. If the downlink transmission requirement of the terminal device 2 is large, the first time-domain resource of the terminal device 2 can be an uplink time-domain resource, such as an uplink symbol. Correspondingly, the second time-domain resource reconfigured by the terminal device 2 can be a downlink symbol. In this way, the terminal device 2 can receive the downlink signal of the network device through the second time-domain resource. That is, the network device can receive the uplink signal of the terminal device 1 and send a downlink signal to the terminal device 2 at the same time.

[0159] In an optional implementation manner, the first time-domain resource can be an uplink time-domain resource, a downlink time-domain resource, or all symbols in the first time-domain resource are flexible symbols.

[0160] In an example, when the first time-domain resource is a downlink time-domain resource, the downlink time-domain resource includes downlink symbols. At this time, the network device can reconfigure the downlink symbols through RRC signaling.

[0161] Exemplarily, taking the above downlink time-domain resource including 12 symbols (such as 12 downlink symbols (D)) as an example. As Figure 9 shown in (a) of, among the 14 symbols, there are 12 downlink symbols (D), 1 uplink symbol (U), and 1 flexible symbol (F). At this time, as Figure 9 shown in (b) of, the network device can reconfigure the above 12 downlink symbols (D) into: 12 uplink symbols (U) through RRC signaling.

[0162] In another example, when the first time-domain resource is an uplink time-domain resource, the uplink time-domain resource includes uplink symbols. At this time, the network device can reconfigure the uplink symbols through RRC signaling.

[0163] In still another example, when all symbols in the first time-domain resource are flexible symbols, the network device can reconfigure all flexible symbols through RRC signaling.

[0164] Exemplarily, taking the above first time-domain resource including 14 symbols as an example. As Figure 10 shown in (a) of, assuming that all the 14 symbols are flexible symbols, after the terminal device receives the RRC signaling from the network device, as Figure 10 shown in (b) of, it can configure the above 14 symbols into: 2 downlink symbols and 12 uplink symbols according to the RRC signaling.

[0165] Optionally, in the embodiments of the present application, the network device may also broadcast a common downlink symbol through SIB1. When the network device reconfigures symbols through RRC signaling, the common downlink symbol is not reconfigured.

[0166] Exemplarily, as Figure 11 shown in (a) of [], assuming there are a total of 14 symbols, including 1 common downlink symbol, 11 downlink symbols, and 2 uplink symbols. Then, as Figure 11 shown in (b) of [], the network device may reconfigure 13 symbols other than the common downlink symbol through RRC signaling to obtain 2 downlink symbols and 11 uplink symbols, while the common downlink symbol remains unchanged.

[0167] Optionally, in the embodiments of the present application, a supplementary uplink (SUL) may also be configured in the terminal device to further improve the uplink transmission bandwidth.

[0168] S803. The terminal device communicates with the network device according to the second time-domain resource.

[0169] In the embodiments of the present application, since the terminal device obtains a second time-domain resource with a transmission direction different from that of the first time-domain resource, the terminal device can use the second time-domain resource to send data to the network device to achieve communication with the network device.

[0170] In the above technical solution, the network device sends different second configuration information to different terminal devices, and the second configuration information is used to reconfigure the first time-domain resource into a second time-domain resource with a different transmission direction. When the uplink transmission delay requirement of the terminal device is low, or the uplink data traffic requirement is large, or the uplink coverage requirement is high, the downlink time-domain resource is configured as the uplink time-domain resource, which improves the uplink data transmission bandwidth of the terminal device, increases the uplink transmission opportunity, thereby improving the uplink coverage and capacity, and further enabling the terminal device to support services with low latency, large uplink data traffic requirements, and high uplink coverage requirements.

[0171] The above mainly introduces the solution provided by the embodiments of this application from the perspective of network element interaction. Correspondingly, the embodiments of this application also provide a communication device, which is used to implement the above various methods. The communication device can be the terminal device or network device in the above method embodiments, or a device including the above terminal device or network device, or a component applicable to the terminal device or network device. It can be understood that, in order to implement the above functions, the communication device includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments disclosed in this article, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0172] The embodiments of this application can divide functional modules for the communication device according to the above method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. It should be understood that the division of modules in the embodiments of this application is illustrative, only a logical functional division, and there may be other division methods in actual implementation.

[0173] For example, Figure 12 FIG. 1200 is a schematic diagram of a communication device 1200 provided by an embodiment of this application. The communication device includes a transceiver module 1210, and optionally includes a processing module 1220. The transceiver module 1210, which can also be referred to as a transceiver unit, is used to implement the transceiver function. For example, it can be a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0174] Taking the communication device 1200 as the terminal device described in the above method embodiments as an example, in a possible implementation:

[0175] The transceiver module 1210 is used to receive first configuration information from a network device, and the first configuration information is used to configure multiple uplink carriers, and the multiple uplink carriers are in the same frequency band. The processing module 1220 is used to communicate with the network device according to the multiple uplink carriers.

[0176] Taking the communication device 1200 as the network device described in the above method embodiments as an example, in a possible implementation:

[0177] The transceiver module 1210 is configured to determine first configuration information for configuring a plurality of uplink carriers, where the plurality of uplink carriers are in the same frequency band. The transceiver module 1210 is further configured to send the first configuration information to the terminal device.

[0178] Taking the communication device 1200 as the terminal device described in the foregoing method embodiment, in a possible implementation:

[0179] The transceiver module 1210 is configured to receive second configuration information from the network device, where the second configuration information is used to reconfigure a first time-domain resource into a second time-domain resource, and the transmission directions of the first time-domain resource and the second time-domain resource are different. The processing module 1220 is configured to communicate with the network device according to the second time-domain resource.

[0180] Taking the communication device 1200 as the network device described in the foregoing method embodiment, in a possible implementation:

[0181] The transceiver module 1210 is configured to determine second configuration information for reconfiguring a first time-domain resource into a second time-domain resource, where the transmission directions of the first time-domain resource and the second time-domain resource are different. The transceiver module 1210 is further configured to send the second configuration information to the terminal device.

[0182] All relevant content of each step involved in the foregoing method embodiment can be cited in the function description of the corresponding functional module, and will not be elaborated here. Optionally, the communication device 1200 may further include a storage module, and the storage module may be configured to store instructions and / or data, and the processing module 1220 may read the instructions and / or data in the storage module.

[0183] In the embodiments of the present application, the communication device 1200 is presented in a form of dividing each functional module in an integrated manner. Here, a "module" may refer to a specific ASIC, a circuit, a processor and a memory that execute one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art can think that the communication device may adopt Figure 4 the form of the communication device 400 shown.

[0184] For example, Figure 4 the processor 411 in the communication device 400 shown may call computer-executable instructions stored in the memory 412, so that the communication device 400 executes the communication method in the foregoing method embodiment.

[0185] Specifically, Figure 12 the functions / implementation processes of the transceiver module 1210 and the processing module 1220 in Figure 4The processor 411 in the communication device 400 shown implements it by invoking computer-executable instructions stored in the memory 412. Alternatively, Figure 12 the function / implementation process of the processing module 1220 in can be implemented by Figure 4 the processor 411 in the communication device 400 shown invoking computer-executable instructions stored in the memory 412, Figure 12 the function / implementation process of the transceiver module 1210 in can be implemented by Figure 4 the transceiver 415 and / or the antenna 416 in the communication device 400 shown.

[0186] Since the communication device provided by the embodiments of the present application can execute the above communication method, the technical effects it can obtain can refer to the above method embodiments and will not be elaborated here.

[0187] It should be understood that one or more of the above modules or units can be implemented by software, hardware, or a combination of both. When any of the above modules or units is implemented by software, the software exists in the form of computer program instructions and is stored in the memory. The processor can be used to execute the program instructions and implement the above method flow. The processor can be built into a SoC (System on Chip) or ASIC, or it can be an independent semiconductor chip. In addition to the core for executing software instructions for arithmetic or processing inside the processor, it may further include necessary hardware accelerators, such as a field programmable gate array (FPGA), a programmable logic device (PLD), or a logic circuit for implementing dedicated logic operations.

[0188] When the above modules or units are implemented by hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator, or a non-integrated discrete device, which can run the necessary software or execute the above method flow without relying on software.

[0189] Optionally, an embodiment of this application further provides a communication device (for example, the communication device may be a chip or a chip system). The communication device includes a processor configured to implement the method in any of the above method embodiments. In a possible design, the communication device further includes a memory. The memory is configured to store necessary program instructions and data. The processor may call the program code stored in the memory to instruct the communication device to execute the method in any of the above method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of chips or may include chips and other discrete devices. Embodiments of this application do not make specific limitations in this regard.

[0190] Optionally, an embodiment of this application further provides a computer-readable storage medium. Computer programs or instructions are stored in the computer-readable storage medium. When running on a communication device, the communication device can execute the method described in any of the above method embodiments or any of its implementation manners.

[0191] Optionally, an embodiment of this application further provides a communication system. The communication system includes the network device described in the above method embodiment and the terminal device described in the above method embodiment.

[0192] In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of this application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from a website, a computer, a server, or a data center to another website, computer, server, or data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or a wireless manner (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, etc. that includes one or more integrated media. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0193] Although the present application has been described in connection with various embodiments, it will be understood by those skilled in the art that other variations of the disclosed embodiments can be understood and effected while practicing the claimed application, by studying the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality. A single processor or other unit may implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not indicate that these measures cannot be combined to advantage.

[0194] Although the present application has been described in connection with specific features and their embodiments, it will be apparent that various modifications and combinations can be made without departing from the scope of the present application. Accordingly, the specification and drawings are merely exemplary illustrations of the application defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A communication method, characterized in that, Applied to a terminal device, the method includes: Receiving first configuration information from a network device, the first configuration information being used to configure a plurality of uplink carriers, the plurality of uplink carriers being in the same frequency band; Communicating with the network device according to the plurality of uplink carriers.

2. The method according to claim 1, characterized in that, The plurality of uplink carriers support simultaneous signal transmission.

3. The method according to claim 1 or 2, characterized in that, The plurality of uplink carriers support time-division signal transmission.

4. The method according to any one of claims 1 to 3, characterized in that, The frequency-domain position of the downlink carrier of the terminal device overlaps with the frequency-domain position of a first uplink carrier, the first uplink carrier being one of the plurality of uplink carriers.

5. The method according to claim 4, characterized in that, The time-domain resources of the downlink carrier and the time-domain resources of the first uplink carrier are time-division defined, and the frequency-domain resources of the downlink carrier and the frequency-domain resources of the first uplink carrier are time-division defined.

6. The method according to claim 4 or 5, characterized in that, The frequency-domain position of the downlink carrier does not overlap with the frequency-domain position of a second uplink carrier, the second uplink carrier being a carrier other than the first uplink carrier among the plurality of uplink carriers.

7. The method according to claim 6, wherein There is a frequency-domain interval between the downlink carrier and the second uplink carrier in the frequency domain, the size of the frequency-domain interval being predefined; or, the size of the frequency-domain interval is related to the capability of the terminal device.

8. The method according to claim 6 or 7, characterized in that The downlink carrier and the second uplink carrier support simultaneous signal transmission.

9. A communication method, characterized in that, Applied to a network device, the method includes: Determining first configuration information, the first configuration information being used to configure a plurality of uplink carriers, the plurality of uplink carriers being in the same frequency band; Sending the first configuration information to a terminal device.

10. The method according to claim 9, wherein The plurality of uplink carriers support simultaneous signal transmission.

11. The method according to claim 9 or 10, characterized in that, The plurality of uplink carriers support time-division signal transmission.

12. The method according to any one of claims 9-11, characterized in that, The frequency-domain position of the downlink carrier of the terminal device overlaps with the frequency-domain position of a first uplink carrier, the first uplink carrier being one of the plurality of uplink carriers.

13. The method according to claim 12, characterized in that, The time-domain resources of the downlink carrier and the time-domain resources of the first uplink carrier are time-division defined, and the frequency-domain resources of the downlink carrier and the frequency-domain resources of the first uplink carrier are time-division defined.

14. The method according to claim 12 or 13, characterized in that, The frequency-domain position of the downlink carrier does not overlap with the frequency-domain position of a second uplink carrier, the second uplink carrier being a carrier other than the first uplink carrier among the plurality of uplink carriers.

15. The method according to claim 14, characterized in that, There is a frequency-domain interval between the downlink carrier and the second uplink carrier in the frequency domain, the size of the frequency-domain interval being predefined; or, the size of the frequency-domain interval is related to the capability of the terminal device.

16. The method according to claim 14 or 15, characterized in that The downlink carrier and the second uplink carrier support simultaneous signal transmission.

17. A communication method, characterized in that, Applied to a terminal device, the method includes: Receiving second configuration information from a network device, the second configuration information being used to reconfigure a first time-domain resource into a second time-domain resource, the transmission directions of the first time-domain resource and the second time-domain resource being different; Communicating with the network device according to the second time-domain resource.

18. The method according to claim 17, wherein The first time-domain resource is a time-domain resource other than a common time-domain resource, the common time-domain resource being used to transmit signals.

19. The method according to claim 17 or 18, characterized in that, The time-domain resource is a frame or a subframe or a time slot or a symbol.

20. A communication method, characterized in that, Applied to a network device, the method includes: Determining second configuration information, the second configuration information being used to reconfigure a first time-domain resource into a second time-domain resource, the transmission directions of the first time-domain resource and the second time-domain resource being different; Send the second configuration information to the terminal device.

21. The method according to claim 20, characterized in that, The first time-domain resource is a time-domain resource other than the common time-domain resource, and the common time-domain resource is used for transmitting signals.

22. The method according to claim 20 or 21, characterized in that, The time-domain resource is a frame or a sub-frame or a time slot or a symbol.

23. A communication device, characterized in that, Including: A functional unit for performing the function of the method according to any one of claims 1-22; wherein, the actions performed by the functional unit are implemented by hardware or by hardware executing corresponding software.

24. A communication device, characterized in that, The communication device includes a processor; the processor is configured to run a computer program or instruction, or to implement the method according to any one of claims 1-22 by means of a logic circuit, so that the communication device realizes the method.

25. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions or programs, and when the computer instructions or programs are run on a computer, the communication device is enabled to implement the method according to any one of claims 1-22.

26. A computer program product, characterized in that, The computer program product includes instructions, and when the instructions are executed on a computer, the computer executes the method according to any one of the above claims 1-22.

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