Uplink transmission method and device

Abstract

The present application provides an uplink transmission method. In the method, a terminal device receives configuration information of a second cell, wherein the configuration information of the second cell comprises configuration information of a downlink carrier, a normal uplink carrier, and a supplementary uplink carrier of the second cell, and a first signal of the second cell is used for determining time-frequency synchronization of a first cell and determining at least one of the transmission power of an uplink channel of the first cell and radio resource management of the first cell; and then, the terminal device can send uplink information by means of the first cell, wherein the first cell is only used for uplink transmission, and the terminal device can obtain related information of the first cell by means of the first signal of the second cell, so that the terminal device can send the uplink information by means of the first cell to implement uplink communication. Thus, because the first cell is only used for uplink transmission, the number of downlink carriers that the terminal device needs to detect is reduced, thereby reducing the complexity and power consumption of the terminal device.

Description

Uplink transmission method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on August 18, 2023, with application number 202311051937.7 and application name “A method and device for uplink transmission”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless technology, and in particular to an uplink transmission method and device. Background Art

[0003] Wireless communication can be the transmission of information between two or more communication nodes without using conductors or cables, or over the air. For example, communication nodes include network devices and terminal devices. Generally, terminal devices can access network devices and receive scheduling and instruction information from them to achieve wireless communication.

[0004] With the continuous emergence of new services such as high-definition video and virtual reality (VR) / augmented reality (AR), the demand for wireless data traffic in wireless communication systems is rapidly increasing. To meet this growing demand for wireless transmission, the deployment of large-scale antennas and transceiver modules that support high-frequency signals can increase the network capacity and transmission rate of wireless communication systems. Consequently, the power consumption of the terminal devices equipped with these transceiver modules will increase.

[0005] Therefore, how to reduce the power consumption of terminal equipment is a technical problem that needs to be solved urgently.

[0006] Summary of the Invention

[0007] The present application provides an uplink transmission method and related equipment for reducing the power consumption of terminal equipment.

[0008] In a first aspect, the present application provides an uplink transmission method, which is executed by a terminal device (or terminal), or the method is executed by some components in the terminal device (such as a processor, a chip or a chip system, etc.), or the method can also be implemented by a logic module or software that can realize all or part of the terminal device functions. In the first aspect and its possible implementation, the uplink transmission method is described as being executed by a terminal device. In this method, the terminal device receives configuration information of a second cell, and the configuration information includes configuration information of a downlink carrier, a normal uplink (NUL) carrier and a supplementary uplink (SUL) carrier of the second cell. The first signal of the second cell is used to determine at least one of the time-frequency synchronization of the first cell, the transmission power of the uplink channel of the first cell and the radio resource management (RRM) of the first cell; the terminal device sends uplink information through the first cell, and the first cell is only used for uplink transmission.

[0009] Based on the above technical solution, the first cell is used only for uplink transmission. After the terminal device receives the configuration information of the second cell, it can obtain relevant information about the first cell used only for uplink transmission through the first signal of the second cell with downlink transmission capability, allowing the terminal device to send uplink information through the first cell to achieve uplink communication. Therefore, because the first cell is used only for uplink transmission, the number of downlink carriers that the terminal device needs to detect is reduced, thereby reducing the complexity and power consumption of the terminal device.

[0010] In addition, the network equipment can dynamically shut down the downlink transmission module of the network equipment according to the changes in the downlink traffic volume in the cell, and switch between the uplink transmission mode only and the uplink and downlink transmission mode, thereby reducing the power consumption of the network equipment.

[0011] In addition, the terminal device can also determine at least one of the time-frequency synchronization of the first cell, the transmission power of the uplink channel of the first cell, and the RRM of the first cell based on the first signal of the second cell. Thus, the terminal device can obtain relevant information of the first cell used only for uplink transmission through the first signal of the second cell with downlink transmission capability, so that the terminal device can use the information corresponding to the downlink signal of other cells as a reference result of the first cell used only for uplink transmission, so as to assist the communication between the terminal device and the cell used only for uplink transmission.

[0012] Optionally, the first cell used only for uplink transmission may be referred to as an uplink only (UL only) cell.

[0013] Optionally, the frequency band corresponding to the SUL carrier is a frequency division duplex (FDD) frequency band or a time division duplex (TDD) frequency band or a first SUL frequency band, and the frequency band corresponding to the carrier of the first cell is an FDD frequency band or a TDD frequency band or a second SUL frequency band.

[0014] The second aspect of the present application provides an uplink transmission method, which is executed by a network device, or the method is executed by some components in the network device (such as a processor, a chip or a chip system, etc.), or the method can also be implemented by a logic module or software that can realize all or part of the network device functions. In the second aspect and its possible implementation, the uplink transmission method is described as being executed by a network device. In this method, the network device sends configuration information of a second cell, and the configuration information includes configuration information of a downlink carrier, a NUL carrier and a SUL carrier of the second cell. The first signal of the second cell is used to determine the time-frequency synchronization of the first cell, determine the transmission power of the uplink channel of the first cell and at least one of the radio resource management RRM of the first cell; the network device receives the uplink information through the first cell, and the first cell is only used for uplink transmission.

[0015] Based on the above technical solution, the first cell is used only for uplink transmission. The first network device sends the configuration information of the second cell, allowing the terminal device to obtain relevant information about the first cell used only for uplink transmission through the first signal of the second cell with downlink transmission capability. This enables the terminal device to send uplink information through the first cell to achieve uplink communication. Therefore, because the first cell is used only for uplink transmission, the number of downlink carriers that the terminal device needs to detect is reduced, thereby reducing the complexity and power consumption of the terminal device.

[0016] In addition, the network equipment can dynamically shut down the downlink transmission module of the network equipment according to the changes in the downlink traffic volume in the cell, and switch between the uplink transmission mode only and the uplink and downlink transmission mode, thereby reducing the power consumption of the network equipment.

[0017] In addition, the network device may also transmit a first signal of a second cell, so that the terminal device can determine at least one of the time-frequency synchronization of the first cell, the transmit power of the uplink channel of the first cell, and the RRM of the first cell based on the first signal. Thus, the terminal device can obtain relevant information of the first cell used only for uplink transmission through the first signal of the second cell with downlink transmission capability, so that the terminal device can use the information corresponding to the downlink signals of other cells as a reference result of the first cell used only for uplink transmission, so as to assist the communication between the terminal device and the cell used only for uplink transmission.

[0018] Optionally, the frequency band corresponding to the SUL carrier is an FDD frequency band or a TDD frequency band or a first SUL frequency band, and the frequency band corresponding to the carrier of the first cell is an FDD frequency band or a TDD frequency band or a second SUL frequency band.

[0019] The third aspect of the present application provides a communication device, which can implement the method in any possible implementation of the first aspect or the second aspect mentioned above. The device includes corresponding units or modules for executing the above methods. The units or modules included in the device can be implemented by software and / or hardware. For example, the device can be a terminal device or a network device, or the device can be a component in a terminal device or a network device (such as a processor, a chip or a chip system, etc.), or the device can also be a logic module or software that can implement all or part of the functions of the terminal device or the network device. Among them, the device includes a processing unit and a transceiver unit, and the component modules of the communication device can also be used to execute the steps performed in each possible implementation of the first aspect or the second aspect, and achieve corresponding technical effects. For details, please refer to the above description and will not be repeated here.

[0020] A fourth aspect of the present application provides a communication device, comprising at least one processor, which is used to execute programs or instructions in a memory so that the device implements the method described in the first aspect or any possible implementation of the first aspect, or enables the device to implement the method described in the second aspect or any possible implementation of the second aspect.

[0021] In a fifth aspect, the present application provides a communication device comprising at least one logic circuit and an input / output interface; the logic circuit is used to execute the method described in the first aspect or any possible implementation of the first aspect, or to execute the method described in the second aspect or any possible implementation of the second aspect.

[0022] In a sixth aspect, the present application provides a computer-readable storage medium for storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in any possible implementation of any one of the first to second aspects above.

[0023] In a seventh aspect, the present application provides a computer program product. When a computer program in the computer program product is executed by a processor, the processor executes the method described in any possible implementation of any one of the first to second aspects above.

[0024] In an eighth aspect, the present application provides a chip system comprising at least one processor for supporting a communication device to implement functions involved in any possible implementation of any one of the first to second aspects.

[0025] In one possible design, the chip system may further include a memory for storing program instructions and data necessary for the first communication device. The chip system may be composed of a chip or may include a chip and other discrete components. Optionally, the chip system may further include an interface circuit that provides program instructions and / or data to the at least one processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic diagram of a communication system provided by the present application;

[0027] FIG2 is a schematic diagram of a carrier aggregation communication scenario involved in this application;

[0028] FIG3 is another schematic diagram of a carrier aggregation communication scenario involved in this application;

[0029] FIG4 is a schematic diagram of an uplink transmission method provided by the present application;

[0030] FIG5 is a schematic diagram of an application example of the uplink transmission method provided in the present application;

[0031] FIG6 is a schematic diagram of a communication device provided by the present application;

[0032] FIG7 is another schematic diagram of the communication device provided in this application. DETAILED DESCRIPTION

[0033] First, some of the terms used in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0034] (1) Configuration and pre-configuration: In this application, configuration and pre-configuration will be used at the same time. Configuration refers to the network equipment such as base stations or servers sending some parameter configuration information or parameter values ​​to the terminal through messages or signaling, so that the terminal can determine the communication parameters or resources during transmission based on these values ​​or information. Pre-configuration is similar to configuration. It can be a way for network equipment such as base stations or servers to send parameter information or values ​​to the terminal through a communication link or carrier; it can also be a way to give the definition of corresponding parameters or parameter values ​​in the standard, or by setting the relevant parameters or values ​​in the terminal device in advance. This application does not limit this. Furthermore, these values ​​and parameters can be changed or updated.

[0035] (2) In this application, “used for indication” can include direct indication and indirect indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0036] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, it can be implemented by direct indication, such as by indicating the information to be indicated itself or the index of the information to be indicated. It can also be implemented by indirectly indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated in the protocol), thereby reducing the indication overhead to a certain extent.

[0037] The information to be indicated can be sent as a whole, or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in this application. Among them, the sending period and / or sending time of these sub-information can be predefined, for example, predefined according to a protocol, or 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 one or a combination of at least two of RRC signaling, medium access control (MAC) layer signaling and physical layer signaling. Among them, MAC layer signaling, for example, includes a medium access control control element (MAC CE); physical layer signaling, for example, includes downlink control information (DCI).

[0038] (3) Reference signal (RS). In a communication system, it is necessary to estimate the uplink or downlink channel in order to send and receive data, obtain system synchronization, and feedback channel information. Channel estimation refers to the process of reconstructing or recovering the received signal in order to compensate for the signal distortion caused by channel fading and noise fading. It uses reference signals known in advance by the transmitter and receiver to measure the time and frequency domain changes of the channel. The above-mentioned reference signals are also called reference signals. They are distributed on different resource elements (REs) in the two-dimensional space of time and frequency within the orthogonal frequency division multiplexing (OFDM) symbol and have known amplitude and phase.

[0039] (4) The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. In addition, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects.

[0040] (5) "Sending" and "receiving" in the embodiments of the present application indicate the direction of signal transmission. In the present application, when entity A sends information to entity B, it can be that A sends it directly to B, or that A sends it indirectly to B through other entities. Similarly, when entity B receives information from entity A, it can be that entity B directly receives the information sent by entity A, or that entity B indirectly receives the information sent by entity A through other entities. Entities A and B here can be RAN nodes or terminals, or modules inside RAN nodes or terminals. The sending and receiving of information can be the information interaction between a RAN node and a terminal, for example, the information interaction between a base station and a terminal; the sending and receiving of information can also be the information interaction between two RAN nodes, for example, the information interaction between a CU and a DU; the sending and receiving of information can also be the information interaction between different modules inside a device, for example, the information interaction between a terminal chip and other modules of the terminal, or the information interaction between a base station chip and other modules in the base station. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface.

[0041] (6) Carrier aggregation, which can be the aggregation of two or more component carriers (CCs) to support a larger transmission bandwidth.

[0042] To efficiently utilize fragmented spectrum, carrier aggregation (CA) supports aggregation of different component carriers. For example, the different component carriers may include component carriers of the same or different bandwidths, or adjacent or non-adjacent component carriers within the same frequency band, or component carriers within different frequency bands.

[0043] In addition, in the CA scenario, the cells accessed by the terminal device may include PCell and SCell. Among them, PCell may be determined at the time of connection establishment, and SCell may be added / modified / released through the RRC connection reconfiguration message after the initial security activation procedure. A serving cell may be a cell that provides services (such as uplink and downlink transmission) to the terminal device. If the terminal device is in the RRC connection (RRC_CONNECTED) state but CA is not configured, the terminal device may have one serving cell, namely PCell; if the terminal device is in the RRC_CONNECTED state and CA is configured, the serving cell set of the terminal device includes PCell and one or more SCells. In other words, a serving cell may refer to either PCell or SCell. A PCell or SCell is also a serving cell.

[0044] (7) NUL and SUL. For traditional cells, the frequencies of uplink and downlink can be the same (e.g., TDD mode) or similar (e.g., FDD mode). For downlink, the transmission power of network equipment is basically unrestricted, but the transmission power of terminal equipment is generally limited due to factors such as battery and cost. In order to increase the coverage of the cell, the network equipment can use a larger transmission power to improve the downlink coverage, but the terminal equipment may not be able to improve the uplink coverage by the same method as the downlink (i.e., increasing the transmission power) due to factors such as the maximum transmission power, which may cause inconsistent coverage of uplink and downlink. SUL is a communication technology that can be a cell. In addition to the original uplink carrier (the original uplink carrier can be called NUL carrier), there can also be an additional uplink carrier (the additional uplink carrier can be called SUL carrier). The frequency of the SUL carrier can be lower than the frequency of the NUL carrier. The terminal equipment can send uplink through the SUL carrier, thereby improving the uplink coverage and making the uplink and downlink coverage consistent. For the convenience of description, this cell can be called SUL cell, and other cells can be called non-supplementary uplink (non-SUL) cell or ordinary cell.

[0045] Optionally, some terminal devices support SUL (i.e., support communication on the SUL carrier), and some terminal devices do not support SUL (i.e., do not support communication on the SUL carrier). Among them, for terminal devices that do not support SUL (referred to as non-SUL capable UE), the NUL carrier can be used for uplink communication; for terminal devices that support SUL (referred to as SUL capable UE), the cell NUL carrier and the SUL carrier can be used for uplink communication. For example, when the downlink signal measured by the terminal device is lower than a preconfigured or configured threshold, the SUL capable UE can use the SUL carrier to initiate a random access process, otherwise the random access process is initiated using the NUL carrier.

[0046] Please refer to Figure 1, which is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in Figure 1, the communication system includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The RAN 100 includes at least one RAN node (such as 110a and 110b in Figure 1, collectively referred to as 110), and may also include at least one terminal (such as 120a-120j in Figure 1, collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1). The terminal 120 is connected to the RAN node 110 wirelessly, and the RAN node 110 is connected to the core network 200 wirelessly or by wire. The core network equipment in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or they may be the same physical device that integrates the logical functions of the core network equipment and the logical functions of the RAN node. Terminals and RAN nodes may be connected to each other via wired or wireless means.

[0047] RAN100 may be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system defined in the 3rd Generation Partnership Project (3GPP). RAN100 may also include two or more of the aforementioned different radio access systems. RAN100 may also be an open RAN (O-RAN).

[0048] A RAN node, also known as a radio access network device, RAN entity, or access node, facilitates wireless access to a communication system by a terminal. In one application scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, or a base station in a future mobile communication system. A RAN node can be a macro base station (such as 110a in Figure 1), a micro base station, an indoor station (such as 110b in Figure 1), a relay node, or a donor node.

[0049] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing portions of the base station's functions. For example, a RAN node can be a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU implements the base station's radio resource control protocol and packet data convergence protocol (PDCP) functions, and can also implement the service data adaptation protocol (SDAP) functions; the DU implements the base station's radio link control layer and MAC layer functions, and can also implement some or all of the physical layer functions. For detailed descriptions of each of the above protocol layers, please refer to the relevant technical specifications of 3GPP. The RU can be used to implement the transmission and reception of radio frequency signals. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as in a baseband unit (BBU). The RU can be included in radio frequency equipment, such as a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0050] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU may be called an open CU (O-CU), a DU may be called an open DU (O-DU), and a RU may be called an open RU (O-RU). The RAN node in the embodiments of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. For example, the RAN node may be a server loaded with the corresponding software module. The embodiments of the present application do not limit the specific technology and specific device form adopted by the RAN node. For ease of description, the following description takes a base station as an example of a RAN node.

[0051] A terminal is a device with wireless transceiver capabilities that can send signals to a base station or receive signals from a base station. A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0052] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0053] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. To terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station. However, to base station 110a, 120i is a terminal, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via a base station-to-base station interface protocol. In this case, 120i is also a base station relative to 110a. Therefore, base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with base station functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal functionality.

[0054] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0055] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem that includes the base station functions. The control subsystem that includes the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or modem) in the terminal, or by a device that includes the terminal functions.

[0056] In this application, a base station sends downlink signals or downlink information to a terminal, and the downlink information is carried on a downlink channel; the terminal sends uplink signals or uplink information to the base station, and the uplink information is carried on an uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the serving cell of the terminal. When the terminal communicates with the serving cell, it will also be subject to interference from signals in neighboring cells.

[0057] In wireless communication systems (such as the one shown in Figure 1), the demand for wireless data traffic is rapidly increasing with the emergence of new services such as high-definition video and VR / AR. To meet this growing demand for wireless transmission, the deployment of large-scale antennas and transceiver modules that support high-frequency signals can increase the network capacity and transmission rate of wireless communication systems. Consequently, the power consumption of the terminal devices and / or network equipment that deploy these transceiver modules will increase.

[0058] In addition, another way to increase the network capacity and transmission rate of wireless communication systems can be achieved by further exploiting the frequency resources of wireless communication. Generally speaking, from the perspective of exploiting frequency resources, a larger transmission bandwidth can provide greater network capacity and higher transmission rate. However, due to the limitations of the actually deployed spectrum bandwidth resources and the processing capabilities of the terminal, large-bandwidth continuous spectrum resources are very scarce. In other words, the bandwidth of a single carrier is limited. To this end, carrier aggregation technology is a key technology to solve the problem of limited bandwidth of a single carrier. It aggregates two or more CCs together to serve terminal devices to support a larger transmission band.

[0059] Figure 2 shows an example implementation of CA. In the CA scenario shown in Figure 2, one or more network devices (only one network device is shown in the figure as an example) can provide n carriers (n is an integer greater than 1), each of which can provide a cell. In other words, there can be n carriers serving a terminal device, meaning the terminal device has n serving cells. The n serving cells of a terminal device include one PCell and one or more SCells.

[0060] Currently, in the implementation of CA technology, all cells used for CA include at least one downlink carrier (i.e., a downlink CC). Taking Figure 3 as an example, one implementation of a cell used for CA, shown as cell 1, includes a downlink CC but no uplink CC; another implementation of a cell used for CA, shown as cell 2, includes a downlink CC and an uplink CC; and another implementation of a cell used for CA, shown as cell 3, includes a downlink CC, an uplink CC, and another uplink CC (which may be called a supplementary uplink CC, i.e., a SUL CC). However, in the current implementation of CA technology, each cell must configure / use a downlink carrier so that a terminal device can obtain downlink synchronization and downlink channel quality information of the cell through the downlink carrier, thereby enabling the terminal device to access the cell and obtain network services. This method of configuring / using downlink carriers inevitably increases the power consumption of the terminal device (and / or the network equipment in which the cell is located).

[0061] In summary, increasing the network capacity and transmission rate of wireless communication systems, whether through the deployment of large-scale antennas and transceiver modules supporting high-frequency signals or through CA technology, inevitably leads to increased power consumption in terminal devices (and / or network equipment). Therefore, reducing the power consumption of terminal devices is a pressing technical issue.

[0062] To solve the above problems, the present application provides an uplink transmission method and device for reducing the power consumption of a terminal device, which will be described in detail below with reference to the accompanying drawings.

[0063] Please refer to FIG4 , which is a schematic diagram of an implementation of the uplink transmission method provided in the present application. The method includes the following steps.

[0064] It should be noted that, in FIG4 , the method is illustrated by taking the terminal device and the network device as the execution subjects of the interaction diagram as an example, but the present application does not limit the execution subjects of the interaction diagram. For example, the execution subject of S401-S402 in FIG4 and the corresponding implementation is the terminal device, and the execution subject may also be a chip, chip system, or processor that supports the terminal device to implement the method, or a logic module or software that can implement all or part of the functions of the terminal device. The network device in S401-S402 in FIG4 and the corresponding implementation may also be replaced by a chip, chip system, or processor that supports the network device to implement the method, or a logic module or software that can implement all or part of the functions of the network device.

[0065] S401. A network device sends configuration information of a second cell, and a terminal device receives the configuration information of the second cell accordingly. The first cell is used only for uplink transmission. The configuration information of the second cell includes configuration information of a downlink carrier, a NUL carrier, and a SUL carrier of the second cell. The first signal of the second cell is used to determine at least one of time-frequency synchronization of the first cell, transmit power of an uplink channel of the first cell, and RRM of the first cell.

[0066] It should be understood that when a terminal device is within the coverage of a network signal, the terminal device can access the network device and receive scheduling and instruction information from the network device to achieve wireless communication. Generally, a network device can include one or more cells. In the technical solution shown in Figure 4, the first cell and the second cell can be located on the same network device, that is, the first cell and the second cell are deployed at the same physical site. The first cell and the second cell can also be located on different network devices, that is, the first cell and the second cell are deployed at different physical sites.

[0067] S402. The terminal device sends uplink information via a first cell, and correspondingly, the network device receives the uplink information via the first cell, wherein the first cell is only used for uplink transmission.

[0068] Exemplarily, in step S402, the terminal device may send uplink information through a variety of uplink channels, such as a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), and the like.

[0069] In the present application, the first cell is only used for uplink transmission, which can be understood as the first cell being able to communicate based on the uplink carrier but not based on the downlink carrier. Accordingly, the first cell being only used for uplink transmission can be replaced by at least one of the following: only the uplink carrier of the first cell is available; the uplink carrier of the first cell is available and the downlink carrier of the first cell is not available; the downlink carrier of the first cell is not available; the carrier of the first cell is an uplink carrier; the first cell only includes an uplink carrier; the carrier of the first cell includes an uplink carrier and does not include a downlink carrier; the uplink transmission of the first cell is activated, turned on, enabled or enabled, and / or the downlink transmission of the first cell is deactivated, turned off, dormant, silent, prohibited or disabled. Similarly, when a certain cell (such as the second cell mentioned later) contains a downlink carrier and an uplink carrier, it can be understood that the cell is able to communicate based on the downlink carrier and the uplink carrier. Accordingly, the cell containing a downlink carrier and an uplink carrier can be replaced by at least one of the following: the uplink and downlink carriers of the cell are available; the uplink and downlink carriers of the cell are available; the uplink and downlink transmission of the cell are activated, turned on, enabled or enabled.

[0070] Optionally, the first cell used only for uplink transmission may be called a UL only cell.

[0071] Optionally, before step S402, the terminal device may receive configuration information of the first cell, and the configuration information of the first cell may include at least one of the following: an index of the serving cell (i.e., the first cell), a physical cell identifier (PCI), uplink carrier configuration information, the position of the first symbol of the uplink and downlink demodulation reference signals (DMRS), the downlink (DL) configuration of the (time division duplexing, TDD) cell, the uplink (UL) configuration of the TDD cell, the frequency band associated with the downlink carrier, the absolute frequency number of the common physical resource block 0 associated with the downlink carrier, the frequency band associated with the uplink carrier, the absolute frequency number of the common physical resource block 0 associated with the uplink carrier, cross-carrier scheduling configuration, timing advance group identifier (ID), downlink carrier unavailable indication information, downlink carrier indication information, and uplink and downlink frame ratio indication information.

[0072] It is understandable that since the first cell is used only for uplink transmission, the configuration information of the first cell may include relevant configuration information of one or more uplink carriers of the first cell, and may not include relevant configuration information of the downlink carrier. For example, for the TDD frequency band, the frequency band associated with the downlink carrier and the absolute frequency number of the common physical resource block 0 associated with the downlink carrier may not be configured, but the frequency band associated with the uplink carrier and the absolute frequency number of the common physical resource block 0 associated with the uplink carrier need to be configured.

[0073] It can be understood that, unlike the first cell which is only used for uplink transmission, since the second cell includes a downlink carrier and an uplink carrier, in step S401, the configuration information of the second cell received by the terminal device includes both relevant configuration information of one or more uplink carriers of the second cell and relevant configuration information of the downlink carrier.

[0074] It should be noted that in step S401, the first signal is used to determine the time-frequency synchronization of the first cell, which can be replaced by: the terminal device can determine the time-frequency synchronization information of the first cell based on the time-frequency synchronization information of the second cell, such as shared time-frequency synchronization information. The first signal is used to determine the transmission power of the uplink channel of the first cell, which can be replaced by: the terminal device can determine the transmission power of the uplink channel of the first cell based on the downlink signal of the second cell. The first signal is used to determine the RRM of the first cell, which can be replaced by: the terminal device can determine the RRM of the first cell based on the RRM of the second cell. In other words, the first cell can share relevant information of the second cell.

[0075] Among them, for the terminal device, it is generally necessary to obtain relevant information of a cell (such as determining the time-frequency synchronization of the cell, determining the transmission power and RRM of the uplink channel, etc.) through downlink transmission (such as downlink signaling / downlink signal / downlink signal / downlink information, etc.). Since the first cell is only used for uplink transmission, the first cell cannot determine the relevant information of the first cell through downlink transmission. For this reason, the relevant information of the first cell can refer to the relevant information of other cells. Correspondingly, the relevant information of the first cell can refer to the relevant information of the second cell, that is, the time-frequency synchronization information of the second cell can be used to determine the time-frequency synchronization of the first cell, the path loss determined by the second cell can be used to determine the transmission power of the uplink channel of the first cell, and the RRM measurement result confirmed by the second cell can be used to determine the RRM of the first cell. Specifically, the signal / information / signaling sent downlink by the second cell can be used to determine at least one of the time-frequency synchronization of the first cell, the transmission power of the uplink channel of the first cell and the RRM of the first cell, so as to realize communication between the terminal device and the first cell that only transmits uplink.

[0076] Optionally, the RRM of the first cell may include at least one of intra-frequency cell measurement, inter-frequency cell measurement, and inter-radio access technology (RAT) measurement.

[0077] It should be understood that in the above technical solution, the first signal of the second cell is also used to determine at least one of the time-frequency synchronization of the second cell, the transmission power of the uplink channel of the second cell, and the RRM of the second cell. In other words, the cell-related information obtained through the downlink carrier of the second cell can be used for the communication of the NUL carrier and the SUL carrier of the second cell, and can also be used for the communication of the carrier of the first cell. Generally, the frequency bands of the downlink carrier and the NUL carrier of a cell are the same or similar. For this reason, the above technical solution can also be understood as the second cell being associated with the first cell, or the downlink carrier of the second cell being associated with the first cell, or the downlink carrier of the second cell being associated with the uplink carrier of the first cell, etc. Among them, "associated" can be replaced with other terms such as corresponding and related.

[0078] In addition, in the above technical solution, there is no restriction on the number of first cells. For example, the first cell can be one or more. The following takes the number of first cells as 2 as an example and provides an exemplary explanation in combination with the scenario shown in Figure 5. As shown in Figure 5, the downlink CC of the second cell and the CC corresponding to the NUL carrier (denoted as NUL CC) are both frequency band A (band A), and the CC corresponding to the SUL carrier of the second cell (denoted as SUL CC) is frequency band B (band B). The first cell used only for uplink transmission may include the first cell_1 and the first cell_2 in the figure. The uplink CC of the first cell_1 is frequency band C (band C), and the uplink CC of the first cell_2 is frequency band D (band D). For a terminal device, when the terminal device accesses the second cell, the first cell_1 and the first cell_2, the SUL CC, the uplink CC of the first cell_1 and the uplink CC of the first cell_2 can all obtain cell-related information through the downlink CC in the second cell. Therefore, because first cell_1 and first cell_2 are used only for uplink transmission, the number of downlink carriers that the terminal device needs to detect is reduced, thereby reducing the complexity and power consumption of the terminal device. In addition, the terminal device can obtain relevant information about multiple uplink carriers through the downlink CC in the second cell, enabling the use of cells used only for uplink transmission and improving uplink capacity.

[0079] Optionally, in the implementation example shown in Figure 5, band A can be a TDD band or an FDD band, and the four bands of band A, band B, band C and band D can be different bands, that is, any two of the four bands are different, or, at least two of the four bands have the same band number, but the frequency domain positions of the carriers within the bands are different.

[0080] In one possible implementation, the configuration information of a certain cell received by the terminal device (for example, the configuration information of the first cell received by the terminal device and / or the configuration information of the second cell received by the terminal device in step S401) can be carried in an RRC message (for example, an RRC message specific to the terminal device), or can be carried in a broadcast message. Specifically, the configuration information of one cell can be carried in an RRC message, so that the terminal device can obtain the configuration information of the one cell through the RRC connection when it has an RRC connection with a certain cell (for example, a PCell). Alternatively, the configuration information of the first cell can be carried in a broadcast message of a certain cell, so that the terminal device can obtain the configuration information of the one cell through a broadcast communication method, thereby enabling multiple terminal devices to obtain the configuration information of the first cell through the broadcast message, which can reduce overhead and be used for random access.

[0081] Optionally, the configuration information of the first cell may be carried in MAC CE, DCI, etc., or other signaling, which is not limited here.

[0082] Optionally, the configuration information of the first cell received by the terminal device and the configuration information of the second cell received by the terminal device in step S401 can be carried in the same message / information / signaling or in different messages / information / signaling, which is not limited here.

[0083] In one possible implementation, in the method shown in FIG4 , the method further includes: the terminal device sends uplink information via the uplink carrier of the first cell and the SUL carrier in the same time unit. Specifically, when the terminal device is capable of communicating with the first cell and the second cell, the terminal device can send uplink information via the uplink carrier of the first cell and the SUL carrier in the same time unit, thereby improving uplink communication efficiency.

[0084] Optionally, the terminal device may also send uplink information in the same time unit via the uplink carrier of the first cell and the NUL carrier in the second cell to improve uplink communication efficiency.

[0085] Optionally, the terminal device may also send uplink information in the same time unit via the SUL carrier in the second cell and the NUL carrier in the second cell to improve uplink communication efficiency.

[0086] Optionally, the terminal device may also send uplink information in the same time unit through the uplink carrier of the first cell, the NUL carrier in the second cell, and the SUL carrier in the second cell to improve uplink communication efficiency.

[0087] Optionally, the time unit may include a symbol, a time slot, a mini-time slot, a subframe, a frame, etc., which is not limited here.

[0088] It can be understood that the terminal device sends uplink information in the same time unit through the uplink carrier of the first cell and the SUL carrier (or through the first cell and the NUL carrier), which can be replaced by the carrier of the first cell and the SUL carrier (or the first cell and the NUL carrier) can be uplinked concurrently.

[0089] In one possible implementation, as shown in steps S401 and S402, the first cell may include a carrier used only for uplink transmission, and the second cell may include a NUL carrier and a SUL carrier. To this end, the terminal device may implement uplink transmission through one or more of these three carriers. The following describes possible implementations of these three carriers with reference to some implementation examples.

[0090] In implementation mode 1, the frequency band corresponding to the SUL carrier in the second cell is the SUL band, and the frequency band corresponding to the carrier of the first cell is the FDD band or the TDD band.

[0091] For example, in implementation method 1, using the implementation scenario shown in Figure 5 as an example, band B can be a SUL band, band C can be an FDD band or a TDD band, and band D can also be an FDD band or a TDD band. This approach ensures that terminal devices access a SUL band for improved uplink coverage and increased uplink capacity.

[0092] In a second implementation mode, the frequency band corresponding to the SUL carrier in the second cell is the first SUL frequency band, and the frequency band corresponding to the carrier of the first cell is the FDD frequency band, the TDD frequency band, or the second SUL frequency band.

[0093] For example, in implementation mode 2, taking the implementation scenario shown in FIG5 as an example, band B may be a SUL band, band C may be an FDD band, a TDD band, or another SUL band, and band D may also be an FDD band, a TDD band, or another SUL band.

[0094] In implementation method two, the first SUL frequency band and the second SUL frequency band are included in a frequency band combination (band combination, BC), and the method further includes: the terminal device sends a first indication information, and the first indication information is used to indicate the frequency band combination. Specifically, a CA frequency band combination of SUL can be defined, and the CA frequency band combination includes at least two SUL bands, wherein at least one SUL frequency band can be configured as a UL only cell, and at least one SUL frequency band can be configured as a cell containing a SUL carrier. In addition, the terminal device can report the first indication information indicating the frequency band combination, so that the network device can clarify that the terminal device supports carrier aggregation in different frequency bands in the frequency band combination of the SUL based on the first indication information, and can configure the first cell and the second cell for the terminal device based on the first indication information.

[0095] Optionally, the first indication information can be implemented in a variety of ways. For example, when the terminal reports the SUL frequency band, it also reports the indication information of whether the frequency band supports the UL only cell configuration. For another example, multiple frequency band combinations are defined in a predefined or preconfigured manner, and the first indication information can indicate one of the multiple frequency band combinations. Exemplarily, the multiple frequency band combinations can include the two CA frequency band combinations shown in Table 1 below.

[0096] Table 1

[0097] In Table 1, the first row "CA_n79_n41-n98" means that the n41, n79, and n98 frequency bands can communicate through carrier aggregation (CA), where n41 and n79 are TDD frequency bands and n98 is a SUL frequency band. That is, the n79 frequency band contained in one cell can communicate with the n41 and n98 frequency bands in another cell through carrier aggregation. The second row "CA_n95_n41-n98" means that the n41, n95, and n98 frequency bands can communicate through carrier aggregation (CA), where n41 is a TDD frequency band and n95 and n98 are SUL frequency bands. That is, the n95 frequency band contained in the first cell can communicate with the n41 and n98 frequency bands in the second cell through carrier aggregation. This method can solve the problem that multiple SUL frequency bands cannot send uplink information in one time unit, thereby improving user uplink coverage and capacity.

[0098] In implementation mode three, the frequency band corresponding to the SUL carrier in the second cell is the FDD frequency band or the TDD frequency band or the third SUL frequency band, and the frequency band corresponding to the carrier of the first cell is the FDD frequency band or the TDD frequency band.

[0099] For example, in implementation manner three, taking the implementation scenario shown in FIG5 as an example, band B may be an FDD band, a TDD band, or a SUL band, band C may be an FDD band, a TDD band, and band D may also be an FDD band, or a TDD band.

[0100] In implementation method three, the frequency bands corresponding to the third SUL frequency band and the carrier of the first cell are different frequency bands in a frequency band combination, and optionally, the frequency band combination is a CA frequency band combination or a SUL frequency band combination. The method also includes: the terminal device sends a second indication information, and the second indication information is used to indicate the frequency band combination. Specifically, a new frequency band combination or a reused CA frequency band combination can be defined, and the frequency band combination contains at least two bands, of which at least one frequency band can be configured as a UL only cell, and at least one frequency band can be configured as a cell containing a SUL carrier (for example, a second cell containing a third SUL frequency band). In addition, the terminal device can report the second indication information indicating the frequency band combination, so that the network device can clarify that the terminal device supports carrier aggregation in different frequency bands in the frequency band combination based on the second indication information, and can configure the first cell and the second cell for the terminal device based on the second indication information. Optionally, the configuration information of the SUL carrier in the first cell includes uplink and downlink frame structure configuration information. This method expands the use scenarios of the SUL feature, enables more frequency bands to be used for SUL carriers, and improves user uplink coverage and capacity.

[0101] In implementation mode 4, the frequency band corresponding to the SUL carrier is the FDD frequency band, the TDD frequency band, or the fourth SUL frequency band, and the frequency band corresponding to the carrier of the first cell is the FDD frequency band, the TDD frequency band, or the fifth SUL frequency band.

[0102] For example, in implementation mode 4, taking the implementation scenario shown in FIG5 as an example, band B can be an FDD band, a TDD band, or a SUL band, band C can be an FDD band, a TDD band, or another SUL band, and band D can also be an FDD band, a TDD band, or another SUL band.

[0103] In implementation method four, the TDD frequency band or FDD frequency band corresponding to the SUL carrier of the second cell and the SUL frequency band corresponding to the carrier of the first cell are different frequency bands in a frequency band combination, and the method further includes: the terminal device sends a third indication information, and the third indication information is used to indicate the one frequency band combination. Specifically, a new frequency band combination or a frequency band combination for multiplexing CA can be defined, and the frequency band combination contains at least two bands, of which at least one frequency band can be configured as a UL only cell containing a SUL band, and at least one frequency band can be configured as a TDD frequency band or FDD frequency band of a SUL carrier. In addition, the terminal device can report the third indication information indicating the frequency band combination, so that the network device can clarify that the terminal device supports carrier aggregation in different frequency bands in the frequency band combination based on the third indication information, and can configure the first cell and the second cell for the terminal device based on the third indication information. The optional third indication information also includes indication information on whether the SUL band can be configured as a UL only cell (for example, the first cell). Optionally, the configuration information of the SUL carrier in the first cell includes uplink and downlink frame structure configuration information. This approach expands both the usage scenarios of the SUL feature and the usage scenarios of the SUL frequency band, enabling terminals to obtain the best uplink experience in a limited number of frequency band combinations.

[0104] Based on the technical solution shown in Figure 4, the first cell is used only for uplink transmission. After the terminal device receives the configuration information of the second cell in step S401, the terminal device can obtain relevant information about the first cell used only for uplink transmission through the first signal of the second cell with downlink transmission capability, allowing the terminal device to send uplink information through the first cell to achieve uplink communication. Therefore, because the first cell is used only for uplink transmission, the number of downlink carriers that the terminal device needs to detect is reduced, thereby reducing the complexity and power consumption of the terminal device.

[0105] In addition, the network equipment can dynamically shut down the downlink transmission module of the network equipment according to the changes in the downlink traffic volume in the cell, and switch between the uplink transmission mode only and the uplink and downlink transmission mode, thereby reducing the power consumption of the network equipment.

[0106] In addition, the terminal device can determine at least one of the time-frequency synchronization of the first cell, the transmission power of the uplink channel of the first cell, and the RRM of the first cell based on the first signal of the second cell. Thus, the terminal device can obtain relevant information of the first cell used only for uplink transmission through the first signal of the second cell with downlink transmission capability, so that the terminal device can use the information corresponding to the downlink signal of other cells as a reference result of the first cell used only for uplink transmission, so as to assist the communication between the terminal device and the cell used only for uplink transmission.

[0107] Referring to Figure 6, an embodiment of the present application provides a communication device 600. This communication device 600 can implement the functions of the communication device (the communication device is a terminal device or a network device) in the above-mentioned method embodiment, and thus can also achieve the beneficial effects of the above-mentioned method embodiment. In the embodiment of the present application, the communication device 600 can be a communication device, or it can be an integrated circuit or component within the communication device, such as a chip. The following embodiments are described using the communication device 600 as an example.

[0108] In one possible implementation, when the device 600 is used to execute the method executed by the terminal device in any of the aforementioned embodiments, the device 600 includes a processing unit 601 and a transceiver unit 602; the transceiver unit 602 is used to receive configuration information of the second cell, and the configuration information includes configuration information of the downlink carrier, NUL carrier and SUL carrier of the second cell; the processing unit 601 is used to determine the time and frequency synchronization of the first cell, the transmission power of the uplink channel of the first cell and the radio resource management RRM of the first cell based on the first signal of the second cell; the transceiver unit 602 is also used to send uplink information through the first cell, and the first cell is only used for uplink transmission.

[0109] In one possible implementation, when the device 600 is used to execute the method executed by the network device in any of the aforementioned embodiments, the device 600 includes a processing unit 601 and a transceiver unit 602; the processing unit 601 is used to determine the configuration information of the second cell, the configuration information of the second cell includes the configuration information of the downlink carrier, NUL carrier and SUL carrier of the second cell, and the first signal of the second cell is used to determine the time and frequency synchronization of the first cell, determine the transmission power of the uplink channel of the first cell and at least one of the radio resource management RRM of the first cell; the transceiver unit 602 is used to send the configuration information of the second cell; the transceiver unit 602 is also used to receive uplink information through the first cell, and the first cell is only used for uplink transmission.

[0110] It should be noted that, for details on the information execution process of the units of the above-mentioned communication device 600, please refer to the description in the method embodiment shown above in this application, and no further details will be given here.

[0111] Please refer to Figure 7, which is another schematic structural diagram of a communication device 700 provided in this application. The communication device 700 includes a logic circuit 701 and an input / output interface 702. The communication device 700 may be a chip or an integrated circuit. The transceiver unit 602 shown in Figure 6 may be a communication interface, which may be the input / output interface 702 in Figure 7. The input / output interface 702 may include an input interface and an output interface. Alternatively, the communication interface may be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0112] Optionally, the input and output interface 702 is used to receive configuration information of the second cell, the configuration information of the second cell including configuration information of the downlink carrier, NUL carrier and SUL carrier of the second cell; the logic circuit 701 is used to determine the time and frequency synchronization of the first cell, the transmission power of the uplink channel of the first cell and at least one of the radio resource management RRM of the first cell based on the first signal of the second cell; the input and output interface 702 is also used to send uplink information through the first cell, and the first cell is only used for uplink transmission.

[0113] Optionally, the logic circuit 701 is used to determine the configuration information of the second cell, the configuration information of the second cell including the configuration information of the downlink carrier, NUL carrier and SUL carrier of the second cell, the first signal of the second cell is used to determine the time-frequency synchronization of the first cell, determine the transmission power of the uplink channel of the first cell and at least one of the radio resource management RRM of the first cell; the input-output interface 702 is used to send the configuration information of the second cell; the input-output interface 702 is also used to receive uplink information through the first cell, and the first cell is only used for uplink transmission.

[0114] The logic circuit 701 and the input / output interface 702 may also execute other steps executed by the terminal device or the network device in any embodiment and achieve corresponding beneficial effects, which will not be described in detail here.

[0115] In a possible implementation, the processing unit 601 shown in FIG. 6 may be the logic circuit 701 in FIG. 7 .

[0116] Optionally, the logic circuit 701 may be a processing device, and the functions of the processing device may be partially or entirely implemented by software. The functions of the processing device may be partially or entirely implemented by software.

[0117] Optionally, the processing device may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory to perform corresponding processing and / or steps in any one of the method embodiments.

[0118] Alternatively, the processing device may include only a processor. A memory for storing the computer program is located outside the processing device, and the processor is connected to the memory via circuits / wires to read and execute the computer program stored in the memory. The memory and processor may be integrated or physically separate.

[0119] Optionally, the processing device may be one or more chips, or one or more processors.

[0120] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), network processors (NP), field programmable gate arrays (FPGA), programmable logic devices (PLD), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0121] An embodiment of the present application also provides a computer-readable storage medium, which is used to store one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in the possible implementation methods of the terminal device or network device in the above embodiments.

[0122] An embodiment of the present application also provides a computer program product (or computer program). When the computer program product is executed by the processor, the processor executes the method of the possible implementation mode of the above-mentioned terminal device or network device.

[0123] An embodiment of the present application also provides a chip system, which includes at least one processor for supporting a communication device to implement the functions involved in the possible implementation methods of the above-mentioned communication device. Optionally, the chip system also includes an interface circuit, which provides program instructions and / or data to the at least one processor. In one possible design, the chip system may also include a memory, which is used to store the necessary program instructions and data for the communication device. The chip system can be composed of chips, or it can include chips and other discrete devices, wherein the communication device can specifically be a terminal device or a network device in the aforementioned method embodiment.

[0124] An embodiment of the present application also provides a communication system, which includes the terminal device and network device in any of the above embodiments.

[0125] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0126] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0127] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0128] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above-mentioned method embodiment. When the terminal chip receives information from the base station, it can be understood that the information is first received by other modules in the terminal (such as a radio frequency module or antenna) and then sent to the terminal chip by these modules. When the terminal chip sends information to the base station, it can be understood that the information is first sent to other modules in the terminal (such as a radio frequency module or antenna) and then sent to the base station by these modules.

[0129] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above-mentioned method embodiment. When the base station chip receives information from the terminal, it can be understood that the information is first received by other modules in the base station (such as a radio frequency module or antenna) and then sent to the base station chip by these modules. When the base station chip sends information to the terminal, it can be understood that the information is sent to other modules in the base station (such as a radio frequency module or antenna) and then sent to the terminal by these modules.

[0130] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and storage medium can also exist in a base station or a terminal as discrete components.

[0131] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. 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 or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0132] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0133] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. An uplink transmission method, characterized in that: Executed by a terminal or a module applied to a terminal, including: receiving configuration information of a second cell, the configuration information including configuration information of a downlink carrier, a conventional uplink NUL carrier, and a supplementary uplink SUL carrier of the second cell, wherein the first signal of the second cell is used to determine at least one of time-frequency synchronization of the first cell, transmit power of an uplink channel of the first cell, and radio resource management RRM of the first cell; Uplink information is sent through the first cell, and the first cell is only used for uplink transmission.

2. The method according to claim 1, characterized in that The frequency band corresponding to the SUL carrier is a frequency division duplex FDD frequency band, a time division duplex TDD frequency band or a first SUL frequency band, and the frequency band corresponding to the carrier of the first cell is a FDD frequency band, a TDD frequency band or a second SUL frequency band.

3. The method according to claim 2, characterized in that The frequency band corresponding to the SUL carrier and the frequency band corresponding to the uplink carrier of the first cell are different frequency bands in a first frequency band combination, and the method further includes: Sending first indication information, where the first indication information is used to indicate the first frequency band combination.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: Uplink information is sent in the same time unit via the uplink carrier of the first cell and the SUL carrier.

5. An uplink transmission method, characterized in that: Executed by a network device or a module applied to a network device, including: Sending configuration information of a second cell, the configuration information including configuration information of a downlink carrier, a conventional uplink NUL carrier, and a supplementary uplink SUL carrier of the second cell, wherein the first signal of the second cell is used to determine at least one of time-frequency synchronization of the first cell, transmit power of an uplink channel of the first cell, and radio resource management RRM of the first cell; Uplink information is received through the first cell, where the first cell is only used for uplink transmission.

6. The method according to claim 5, characterized in that The frequency band corresponding to the SUL carrier is a frequency division duplex FDD frequency band, a time division duplex TDD frequency band or a first SUL frequency band, and the frequency band corresponding to the carrier of the first cell is a FDD frequency band, a TDD frequency band or a second SUL frequency band.

7. The method according to claim 6, characterized in that The frequency band corresponding to the SUL carrier and the frequency band corresponding to the uplink carrier of the first cell are different frequency bands in a first frequency band combination, and the method further includes: Sending first indication information, where the first indication information is used to indicate the first frequency band combination.

8. The method according to any one of claims 5 to 7, further comprising: Uplink information is received in the same time unit through the uplink carrier of the first cell and the SUL carrier.

9. A communication device, characterized in that: Comprising modules for executing the method according to any one of claims 1 to 8.

10. A communication device, characterized in that: The method comprises at least one processor coupled to a memory; the at least one processor is configured to execute the method according to any one of claims 1 to 8.

11. A readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the communication device implements the method according to any one of claims 1 to 8.

12. A computer program product, characterized in that When the computer program in the computer program product is executed by a communication device, the communication device is caused to implement the method according to any one of claims 1 to 8.

Images