Communication method and related device

Abstract

A communication method and a related device. When a terminal device wakes up a secondary cell (SCell) by means of first information, on the basis of a broadcast signal of the SCell, the terminal device can use a communication resource provided by the SCell to perform communication, so as to improve the data transmission rate. In addition, the first information sent by the terminal device can be used for waking up the SCell of the terminal device. For a network device, upon receiving the first information, the network device can send the broadcast signal by means of the SCell. In other words, the network device does not need to send the broadcast signal before receiving the first information. In this way, before the terminal device sends the first information, the network device does not need to send the broadcast signal by means of the SCell, and the terminal device does not need to receive the broadcast signal of the SCell, thereby reducing the power consumption of the terminal device and the network device.

Description

A communication method and related equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on February 7, 2024, with application number 202410175977.0 and invention name “A communication method and related equipment”, 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 a communication method and related equipment. 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, virtual reality (VR) and augmented reality (AR), the demand for wireless data traffic in wireless communication systems is rapidly increasing. Carrier aggregation (CA) technology is one way to increase data transmission rates.

[0005] However, how to reduce device power consumption during carrier aggregation communication is a technical problem that needs to be solved urgently. Summary of the Invention

[0006] The present application provides a communication method and related devices for reducing the power consumption of a device.

[0007] In a first aspect, the present application provides a communication 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 communication method is described as being executed by a terminal device. In this method, the terminal device receives a first message, which is used to carry the configuration of the first information, and the first information is used to wake up the secondary cell (SCell) of the terminal device that does not send a broadcast signal; the terminal device sends the first information based on the first message; the terminal device receives a broadcast signal, and the broadcast signal comes from one or more SCells in the SCell of the terminal device.

[0008] Based on the above technical solution, after the terminal device wakes up the SCell through the first information, the terminal device can use the communication resources provided by the SCell to communicate based on the broadcast signal of the SCell to improve the data transmission rate. In addition, the first information sent by the terminal device can be used to wake up the SCell of the terminal device. For the network device, after the network device receives the first information, the network device can send a broadcast signal through the SCell. In other words, before the network device receives the first information, the network device may not send a broadcast signal. In this way, before the terminal device sends the first information, the network device does not need to send a broadcast signal through the SCell, and the terminal device does not need to receive the broadcast signal of the SCell, which can reduce the power consumption of the terminal device and the network device.

[0009] In the present application, the broadcast signal may include one or more of a synchronization signal / physical broadcast channel block (SSB or SS / PBCH block) and a system information block (SIB).

[0010] In a possible implementation manner of the first aspect, before the terminal device receives the broadcast signal, the method further includes: the terminal device receiving second information, where the second information is used to indicate the one or more SCells.

[0011] Based on the above technical solution, after receiving the first information indicating the one or more SCells, the terminal device can receive the broadcast signal of the one or more SCells based on the indication of the first information. In this way, the terminal device can receive the broadcast signal of the specified SCell based on the indication of the network device, which can reduce implementation complexity.

[0012] In a possible implementation of the first aspect, after the terminal device sends the first information based on the first message, the method further includes: when the first timer expires, if no information indicating the one or more SCells is received, retransmitting the first information, wherein the first timer is started at the pth time unit after the first information is sent, and p is a natural number; or, when the second timer expires, if the broadcast signal is not received, retransmitting the first information, wherein the second timer is started at the qth time unit after the first information is sent, and q is a natural number.

[0013] Based on the above technical solution, after the terminal device sends the first information, if it does not receive the information indicating the one or more SCells within the duration indicated by the first timer, and / or does not receive the broadcast signal from the one or more SCells within the duration indicated by the second timer, the terminal device can determine that the transmission of the first information sent previously failed (or the network device failed to receive it). To this end, the terminal device can retransmit the first information so that the network device triggers the sending of the broadcast signal based on the retransmitted first information, so that the terminal device can subsequently receive the broadcast signal of the one or more SCells.

[0014] Optionally, the first timer and / or the second timer are preconfigured; or, the configuration of the first information is also used to configure the first timer and / or the second timer.

[0015] The second aspect of the present application provides a communication method, which is executed by a network device, or the method is executed by some components in the network device (such as a processor, chip or 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 communication method is described as being executed by a network device. In this method, the network device sends a first message, wherein the first message is used to configure first information, and the first information is used to wake up the SCell of the terminal device that does not send a broadcast signal; the network device receives the first information based on the first message; the network device sends a broadcast signal, and the broadcast signal comes from one or more SCells in the SCell of the terminal device. The second aspect is a method on the network device side corresponding to the first aspect, which can also achieve the beneficial effects of the first aspect.

[0016] In a possible implementation manner of the second aspect, before the network device sends the broadcast signal, the method further includes: the network device sending second information, where the second information is used to indicate the one or more SCells.

[0017] In a possible implementation of the first aspect or the second aspect, the first information includes a first field, the bit length of the first field is the maximum number of SCells supported by the terminal device; the i-th bit of the first field is used to indicate whether to wake up the i-th SCell of the terminal device.

[0018] Exemplarily, the maximum number of SCells supported by the terminal device is N, the number of one or more SCells indicated by the first information is M, where M is a positive integer and N is an integer greater than or equal to M. The value of i is less than or equal to M.

[0019] Optionally, the first information is downlink control information (DCI) or a medium access control control element (MAC CE).

[0020] In a possible implementation manner of the first aspect or the second aspect, the first information is carried on a PUCCH, and the format of the PUCCH is PUCCH format 0; wherein the value of the cyclic shift parameter of the PUCCH sequence is 2, 5, 8, or 11.

[0021] Based on the above technical solution, when the format of the PUCCH carrying the first information is PUCCH format 0, the cyclic shift parameter of the PUCCH sequence can be other values ​​(including 2, 5, 8, or 11) outside the currently defined parameter set (including 0, 1, 3, 4, 6, 7, 9, 10, etc.). In this way, while avoiding affecting other information transmitted by the PUCCH, it is also possible to reuse the mechanism in PUCCH format 0 of using different cyclic shift parameters to carry different information on the PUCCH, so as to carry the first information through the PUCCH.

[0022] In a possible implementation manner of the first aspect or the second aspect, the first information is carried on a PUCCH, and the format of the PUCCH is PUCCH format 2, format 3, or format 4; wherein, among the multiple information carried by the PUCCH, the first information is located after a scheduling request (SR).

[0023] Based on the above technical solution, when the format of the PUCCH carrying the first information is PUCCH format 2, format 3 or format 4, the first information is located after the SR carried by the PUCCH. In this way, it is possible to avoid affecting the parsing of the SR and reduce the implementation complexity.

[0024] The third aspect of the present application provides a communication device, which can implement the method in any possible implementation of any aspect of the first to second aspects 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 any aspect of the first to second aspects, and achieve corresponding technical effects. For details, please refer to the above description and will not be repeated here.

[0025] A fourth aspect of an embodiment 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 executed in each possible implementation manner of any one of the first to second aspects mentioned above.

[0026] A fifth aspect of an embodiment of 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 executed in each possible implementation of any one of the first to second aspects mentioned above.

[0027] A sixth aspect of an embodiment of the present application 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 performed in each possible implementation of any one of the first to second aspects above.

[0028] A seventh aspect of an embodiment of the present application provides a computer program product. When the computer program in the computer program product is executed by a processor, the processor executes the method performed in each possible implementation of any one of the first to second aspects above.

[0029] An eighth aspect of an embodiment of the present application provides a chip system, which includes at least one processor for supporting a communication device to implement the method executed in each possible implementation manner of any one of the first to second aspects above.

[0030] 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

[0031] FIG1 is a schematic diagram of a communication system provided by the present application;

[0032] FIG2 is a schematic diagram of a carrier aggregation communication scenario involved in this application;

[0033] FIG3 is a schematic diagram of a communication method provided by the present application;

[0034] FIG4 a is a schematic diagram of the SSB transmission process of the SCell provided in this application;

[0035] FIG4 b is another schematic diagram of the SSB transmission process of the SCell provided in this application;

[0036] FIG5a is a schematic diagram of the format of a MAC CE provided in this application;

[0037] FIG5 b is another schematic diagram of the communication method provided by the present application;

[0038] Figures 6a and 6b are some schematic diagrams of the communication device provided in this application;

[0039] 7 to 8 are some schematic diagrams of the communication device provided in this application. DETAILED DESCRIPTION

[0040] 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.

[0041] 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).

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] In a wireless communication system (such as the communication system shown in FIG1 ), wireless signals can be transmitted between terminal devices and network devices. The following is an illustrative introduction to the wireless signals that may be involved in the subsequent embodiments of this application.

[0052] 1. Carrier aggregation.

[0053] Taking NR as an example, carrier aggregation (CA) technology in NR can be used to increase the transmission bandwidth for a single user. Specifically, carrier aggregation (CA) can integrate multi-frequency resources, aggregating spectrum resources in the same or different frequency bands for terminal use, thereby improving overall network resource utilization and user experience. In general, CA aggregates two or more component carriers (CCs) to support greater transmission bandwidth.

[0054] 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.

[0055] In carrier aggregation, the primary cell (PCell) can be the cell where a terminal device establishes an initial connection, the cell where an RRC connection is reestablished, or the designated primary cell during a mobile handover. In other words, the PCell is responsible for RRC communication with the terminal device. Generally, the carrier component corresponding to the PCell is called the primary component carrier (PCC).

[0056] In carrier aggregation, an SCell can be a cell added during RRC reconfiguration to provide additional radio resources. Generally, there is no RRC communication between the SCell and the terminal device; instead, control information is conveyed via the PCell. The carrier component corresponding to the SCell is called a secondary component carrier (SCC).

[0057] It should be noted that PCell and SCell are user-level concepts. The PCell of one terminal device can be the PCell or SCell of another terminal device, and the SCell of one terminal device can be the PCell or SCell of another UE.

[0058] In addition, when a terminal device initially accesses (or switches to, or reestablishes) a cell, the network equipment initiates SCell configuration. A successfully configured SCell is in a deactivated state, during which the terminal device cannot yet transmit data through the SCell. When specific conditions are met, the base station activates the SCell, switching it from a deactivated state to an active state, enabling the terminal device to transmit data through the SCell. At specific moments in the above process, the terminal device uses the SSBs sent on the SCell to complete cell search, measurement, and synchronization.

[0059] 2. Control channels and information.

[0060] In wireless communications, data information can be transmitted via radio electromagnetic waves, which are known as wireless signals. These signals undergo encoding, interleaving, and other processing to form a regular transmission resource. Data transmission from network devices to terminal devices occurs over physical downlink channels, while data transmission from terminal devices to network devices occurs over physical uplink channels. Specifically, the channels responsible for transmitting control information are the physical downlink control channel (PDCCH) and the PUCCH.

[0061] 3.PUCCH.

[0062] Specifically, the PUCCH can be used to transmit uplink control information (UCI). The UCI carried by the PUCCH includes the following three types of information:

[0063] 3.1.SR, resource request for PUSCH scheduling.

[0064] Optionally, SR may include SR with scheduling request (Positive SR) and SR without scheduling request (Negative SR). For example, the terminal device may not always need to send an SR request. If the SR sent by the terminal device is Positive SR, it means that the terminal device has an SR request to send and needs to send SR / PUCCH at the physical layer; for a terminal device without an SR request, at the time point of the SR resource, the SR is Negative SR.

[0065] 3.2. Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) Information: For example, HARQ-ACK information may include positive acknowledgment (ACK) and / or negative acknowledgment (NACK) feedback.

[0066] 3.3. Channel state information (CSI) feedback is used to feedback the results of channel state information reference siganl (CSI-RS) measurement.

[0067] For example, in order to adapt to different service scenarios, five PUCCH formats are defined as shown in the following Table 1. In the following table, "PRB" represents a physical resource block (PRB).

[0068] Table 1

[0069] As can be seen from Table 1, when the UCI payload size sent by the terminal device is less than or equal to 2 bits, it can be carried on PUCCH format 0 or format 1 for transmission; when the UCI payload size sent by the terminal device is greater than 2 bits, it can be carried on PUCCH format 2, format 3 or format 4 for transmission.

[0070] In particular, for PUCCH format 0, it represents different information (one or two HARQ and one SR) by cyclically shifting a base sequence of 12 bits. The cyclic shift is composed of m0 and m CS (0≤m CS <12) These two parameters determine. For example, m CS The relationship with the bearer information is:

[0071] m CS =0: HARQ-ACK={0}; HARQ-ACK={0, 0}.

[0072] m CS =1: HARQ-ACK = {0, 0} and positive SR.

[0073] m CS=3: HARQ-ACK={0, 1}; HARQ-ACK={0} and positive SR.

[0074] m CS =4: HARQ-ACK={0, 1} and positive SR.

[0075] m CS =6: HARQ-ACK={1}; HARQ-ACK={1, 1}.

[0076] m CS =7: HARQ-ACK={1, 1} and positive SR.

[0077] m CS =9: HARQ-ACK={1, 0}; HARQ-ACK={1} and positive SR.

[0078] m CS =10: HARQ-ACK={1,0} and positive SR.

[0079] Optionally, for PUCCH format 2, format 3, or format 4, it is not necessary to define the above mapping rules, and the corresponding information is directly represented by the bit sequence carried by the PUCCH.

[0080] 4. Uplink Control Information (UCI) and Downlink Control Information (DCI)

[0081] UCI is uplink control information, sent by the terminal device to the network device to support uplink and downlink data transmission. UCI includes the following three types of information: SR, HARQ-ACK, and CSI. UCI is generally transmitted using the PUCCH.

[0082] In addition, transmission is carried out over the physical uplink shared channel (PUSCH) in the following two special cases: when the uplink uses single carrier frequency division multiple access (SC-FDMA) technology and UCI and data need to be sent simultaneously, or when the amount of feedback information is large. It is important to clarify that UCI is specific information, and PUCCH is the physical channel used to carry UCI. UCI can only be transmitted on the PUCCH, and in most cases (but not necessarily) UCI ​​is transmitted over the PUCCH.

[0083] DCI is downlink control information, which is sent from network equipment to terminal equipment to support uplink and downlink data transmission. DCI includes the following three types of information: downlink authorization, uplink authorization, and power control command.

[0084] In addition, DCI can be carried on PDCCH for transmission. The size of DCI payload in different scenarios may be different, resulting in different DCI formats. For example, DCI formats can include the following five categories:

[0085] DCI format 0_X (X can be 0, 1, 2, or 3, indicating uplink scheduling);

[0086] DCI format 1_X (X can be 0, 1, 2, or 3, indicating downlink scheduling);

[0087] DCI format 2_X (X can be 0, 1, 2, 3, ..., 9, used in other specific scenarios);

[0088] DCI format 3_X (X can be 0, 1, or 2, used for sidelink scheduling);

[0089] DCI format 4_X (X can be 0, 1, or 2, used for scheduling multicast broadcast services).

[0090] Generally, DCI carries comprehensive and complex information, including network-side control information necessary for normal communication between terminal devices and the network. Compared to DCI, UCI carries less information, requiring terminal devices to report information unknown to the network (or information that the network cannot obtain locally) through UCI. This is consistent with the current mobile communication system's characteristic of "network devices taking the lead, and terminals following instructions."

[0091] In wireless communication systems (such as the one shown in Figure 1), with the emergence of new services such as high-definition video and VR / AR, the demand for wireless data transmission is rapidly increasing. Carrier-attached communication (CA) technology is one way to increase data transmission rates. However, reducing device power consumption during CA communication is a pressing technical challenge.

[0092] In order to solve the above problems, the present application provides a communication method and related equipment. The communication method provided by the present application will be first described in detail below with reference to the accompanying drawings.

[0093] Please refer to FIG3 , which is a schematic diagram of the communication method provided in this application. The method includes the following steps.

[0094] It should be noted that, in the following, FIG3 takes the terminal device and the network device as the execution subjects of the interaction diagram as an example to illustrate the method, but the present application does not limit the execution subjects of the interaction diagram. For example, in FIG3, the implementation process of each step can be executed by the terminal device, or it can be executed by the chip, chip system, or processor that supports the terminal device to implement the method, or it can be executed by a logic module or software that can implement all or part of the terminal device functions. For another example, in FIG3, the implementation process of each step can be executed by the network device, or it can be executed by the chip, chip system, or processor that supports the network device to implement the method, or it can be executed by a logic module or software that can implement all or part of the network device functions.

[0095] S301. A network device sends a first message, and a terminal device receives the first message accordingly, wherein the first message is used to carry configuration of first information, and the first information is used to wake up an SCell of the terminal device that does not send broadcast signals.

[0096] Optionally, the first information is used to wake up an SCell of a terminal device that does not send a broadcast signal, wherein the first information may be referred to as a wake-up signal (WUS), wake-up signaling, etc. A WUS generally refers to a type of signal that triggers, wakes up, or indicates a state switch in a network. In the method shown in FIG3 , when the first information may be a signal sent by a terminal device to a network device, the first information may also be referred to as an uplink wake-up signal (Uplink WUS).

[0097] It should be noted that, in a carrier aggregation scenario, the network device may send a first message to the terminal device via the PCell. For example, in step S301, the network device may send a first message (eg, an RRC message) to the terminal device via the PCell.

[0098] In a possible implementation, in the first message received by the terminal device in step S301, the configuration of the first information carried by the first message includes at least one of the following:

[0099] The first configuration information is used to configure a physical uplink control channel (PUCCH) resource that carries the first information.

[0100] The second configuration information is used to configure physical layer resources that carry the first information.

[0101] The third configuration information is used to configure the first information as an event of the MAC layer.

[0102] The fourth configuration information is used to configure parameters of the resources that carry the first information.

[0103] Therefore, the configuration of the first information contained in the first message can be implemented through at least one of the above items, so that the terminal device can implement the sending of the first information based on the at least one item.

[0104] As an example, taking the first message as an RRC message, the first configuration information can be carried by a PUCCH configuration (PUCCH-Config) information element. For example, in the PUCCH-Config information element, a wake-up signal resource configuration (WUSResourceConfig) field can be carried, which is used to carry the first configuration information. Among them, this field can configure the PUCCH resources used to send the first information. Optionally, the lower information element in this field may include time information of the first information (such as sending cycle information, time offset information, etc.), wherein the time information can be in units of the number of time domain symbols or the number of time slots. The second configuration information can be carried by a newly defined first information element in the RRC message. For example, the first information element can be a wake-up signal resource identifier (WUSResourceId), which is used to define the resources of the first information on the physical layer. The third configuration information can be carried by a newly defined second information element in the RRC message. For example, the second information element can be a wake-up signal identifier (WUSId), which is used to define the WUS event on the MAC layer. The fourth configuration information can be carried by a newly defined third information element in the RRC message. For example, the third information element may be a wake-up signal configuration (WUSConfig), which is used to configure parameters of WUS resources.

[0105] S302. The terminal device sends the first information, and correspondingly, the network device receives the first information.

[0106] Optionally, the first information is used to wake up the SCell of the terminal device that does not send a broadcast signal. For the terminal device, the terminal device can determine the existence of the SCell that does not send a broadcast signal in a variety of ways. For example, after the terminal device obtains the configuration information of the SCell through the PCell (for example, the configuration information includes the cell frequency band, cell identifier, etc. of the SCell), the terminal device fails to detect or search for the broadcast signal of the SCell based on the configuration information, and the terminal device can determine that there is a SCell that does not send a broadcast signal. For another example, the terminal device obtains the indication information of the SCell through the PCell, and the indication information indicates that the SCell is currently in a state of not sending a broadcast signal (for example, the state may be caused by the configuration of the network device such as energy saving, sleep, and silence), that is, the terminal device can determine the existence of the SCell that does not send a broadcast signal based on the indication information.

[0107] S303. The network device sends a broadcast signal, and the terminal device receives the broadcast signal accordingly. The broadcast signal comes from one or more SCells in the SCell of the terminal device. In other words, in step S303, the network device sends the broadcast signal via the one or more SCells.

[0108] In this application, the broadcast signal may include one or more of SSB and SIB.

[0109] It should be understood that the broadcast signal in step S303 may be sent based on the wake-up requirement indicated by the first information in step S302, that is, the broadcast signal may carry an on-demand broadcast signal, including on-demand SSB, on-demand SIB, etc.

[0110] Based on the technical solution shown in Figure 3, after the terminal device receives the first message in step S301, the terminal device can send the first information for waking up the SCell of the terminal device in step S302 based on the configuration carried by the first message; thereafter, the terminal device can receive a broadcast signal from one or more SCells in the SCell of the terminal device in step S303, and subsequently the terminal device can use the communication resources provided by the one or more SCells to communicate based on the broadcast signal. In this way, after the terminal device wakes up the SCell through the first message, the terminal device can use the communication resources provided by the SCell to communicate based on the SCell's broadcast signal to improve the data transmission rate.

[0111] In addition, the first information sent by the terminal device can be used to wake up the SCell of the terminal device. With respect to the network device, after receiving the first information, the network device can send a broadcast signal through the SCell. In other words, the network device may not send a broadcast signal before receiving the first information. In this way, before the terminal device sends the first information, the network device does not need to send a broadcast signal through the SCell, and the terminal device does not need to receive the broadcast signal of the SCell, thereby reducing the power consumption of the terminal device and the network device.

[0112] In addition, in step S302, the first information sent by the terminal device can be used to wake up the SCell of the terminal device. With respect to the network device, after receiving the first information, the network device can send a broadcast signal via the SCell. In other words, the network device may not send a broadcast signal before receiving the first information. In this way, before the terminal device sends the first information, the terminal device does not need to receive the broadcast signal of the SCell, and the network device does not need to send a broadcast signal via the SCell, thereby reducing the power consumption of both the terminal device and the network device.

[0113] The following will use some implementation examples shown in Figures 4a and 4b to illustrate how to reduce the power consumption of terminal devices and network devices, taking the broadcast signal as SSB as an example.

[0114] As shown in Figure 4a, in a traditional communication process, after the network device is powered on, it will send the SSB of the SCell based on a certain period. However, for the terminal device, if there is no SSB demand, the terminal device will not receive (and / or parse) the SSB of the SCell. In other words, the SSB sent by the network device in this case will not be received (and / or parsed), and for the network device, the transmission of these SSBs will cause unnecessary overhead and power consumption. For the terminal device, since the terminal device does not receive (and / or parse) the SSB of the SCell, the SSB of the SCell will be regarded as an interference signal by the terminal device, which will increase the interference of the terminal device during the communication process, resulting in additional overhead and power consumption of the communication process.

[0115] As shown in Figure 4b, in the implementation process shown in Figure 3, before the terminal device sends the first information, the network device does not send the SSB of the SCell. Instead, after receiving the first information, the network device wakes up the SCell based on the first information and periodically sends the SSB of the SCell. In this way, before the terminal device sends the first information, the network device does not need to send a broadcast signal through the SCell, and the terminal device does not need to receive the broadcast signal of the SCell, which can reduce the power consumption of the terminal device and the network device.

[0116] In other words, in the implementation process shown in FIG3 , when an SSB requirement exists, the terminal device may send first information with a wake-up function in step S302 to wake up the SCell of the terminal device through the first information, and receive broadcast signals from one or more SCells in step S303. For example, taking the broadcast signal as SSB as an example, there may be various reasons why the terminal device may have an SSB requirement, which will be explained below with reference to some examples.

[0117] In an implementation example, when a terminal device has a burst uplink data transmission demand, the terminal device may have accessed one or more cells (for example, a PCell and 0 or 1 or more SCells), but the bandwidth on the one or more cells may not be able to meet the transmission of the burst uplink data. Therefore, the terminal device can send a first message to the network device in step S302 to wake up the SCell of the terminal device through the first message, so that the network device triggers the sending of an on-demand SSB through one or more SCells in step S303 based on the wake-up indicated by the first message. The terminal device can subsequently communicate with the one or more SCells based on the on-demand SSB to obtain communication resources of one or more SCells, and realize burst uplink data transmission through these communication resources.

[0118] In one possible implementation of the method shown in FIG3 , before the terminal device receives the broadcast signal in step S303, the method further includes: the terminal device receiving second information, where the second information is used to indicate the one or more SCells. Specifically, after the terminal device receives the second information indicating the one or more SCells, the terminal device can receive the broadcast signal of the one or more SCells based on the indication of the second information. In this way, the terminal device can receive the broadcast signal of the specified SCell based on the indication of the network device, which can reduce the implementation complexity.

[0119] In addition, the second information can indicate the one or more SCells in a variety of ways. For example, the second information can carry the cell identifiers of the one or more SCells. For another example, the second information can indicate the one or more SCells in the form of a bitmap to reduce overhead. The latter will be used as an example to illustrate below.

[0120] The second information may include a first field whose bit length is the maximum number of SCells supported by the terminal device; the i-th bit of the first field is used to indicate whether to wake up the i-th SCell of the terminal device. In this way, the terminal device can determine the one or more SCells indicated by the second information through the bits contained in the first field, thereby reducing overhead.

[0121] For example, the maximum number of SCell supported by the terminal device is N, and the number of one or more SCell indicated by the second information is M, where M is a positive integer and N is an integer greater than or equal to M. Among them, the value of i is less than or equal to M. When the value of the i-th bit is one value, the i-th bit is used to indicate the i-th SCell that wakes up the terminal device; when the value of the i-th bit is another value, the i-th bit is used to indicate that the i-th SCell of the terminal device is not woken up. Among them, the one value is 1 and the other value is 0, or the one value is 0 and the other value is 1.

[0122] As an implementation example, the second information can be DCI.

[0123] Exemplarily, a new DCI format can be defined to carry the second information.

[0124] For example, the new DCI format is 0_X (where X can be a positive integer other than 0, 1, 2, 3).

[0125] For another example, the new DCI format is 2_X (where X can be an integer greater than 9).

[0126] For another example, the new DCI format is A_X (where A can be an integer greater than 4 and X can be a non-negative integer).

[0127] Among them, within the new DCI format, there is an indication field with a length of N bits, and N is the number of configurable SCell supported by the terminal device. Each bit can take a value of 0 or 1, and these N bits can represent a total of 2 N kinds of values. When the i-th bit (0 < i ≤ N) takes a value of 1, it represents that the SSB on the SCell with the identifier (ID) of i is triggered, and when the value is 0, it represents that the SSB on the SCell with the ID of i is not triggered.

[0128] As an implementation example, the second information can be MAC CE.

[0129] Exemplarily, a new MAC CE can be added to carry the second information.

[0130] As shown in Figure 5a, the length of the newly added MAC CE can be fixed to one or more bytes (octets), and Figure 5a takes 4 bytes as an example. The 4 bytes include 31 C-fields and 1 R-field. The R-field is filled with "0" bits by default. If the i-th C-field is filled with "1" bits, it indicates that the SCell with ID i is triggered to send SSB; if the i-th C-field is filled with "0" bits, it indicates that the SCell with ID i is not triggered to send SSB. In this example, i takes a value from 1 to 31.

[0131] In a possible implementation of the technical solution shown in FIG3 , as shown in FIG5 b , after the terminal device sends the first information based on the first message in step S302, the method further includes:

[0132] Step A. When the first timer times out, if no information indicating one or more SCells (e.g., second information) is received, the terminal device retransmits the first information, wherein the first timer is started at the pth time unit after sending the first information; or

[0133] Step B. When the second timer times out and the broadcast signal is not received, the terminal device retransmits the first information, wherein the second timer is started at the qth time unit after sending the first information.

[0134] Optionally, if the terminal device receives the second information during the operation of the first timer, the first timer is stopped. If the terminal device receives the broadcast signal during the operation of the second timer, the second timer is stopped.

[0135] Optionally, the time unit may be milliseconds, frames, subframes, time slots, symbols, etc.

[0136] When p is equal to 0, it can be understood that the first timer is started immediately after the terminal device sends the first information. When q is equal to 0, it can also be understood that the second timer is started immediately after the terminal device sends the first information.

[0137] Specifically, after the terminal device sends the first information, if it does not receive the information indicating the one or more SCells within the duration indicated by the first timer, and / or does not receive the broadcast signal from the one or more SCells within the duration indicated by the second timer, the terminal device can determine that the transmission of the first information sent previously failed (or the network device failed to receive it). To this end, the terminal device can retransmit the first information so that the network device triggers the sending of the broadcast signal based on the retransmitted first information, so that the terminal device can subsequently receive the broadcast signal of the one or more SCells.

[0138] Optionally, the first timer and / or the second timer are preconfigured; or, in the first message received by the terminal device in step S301, the configuration of the first information is also used to configure the first timer and / or the second timer; or, the network device can also implement the configuration of the first timer and / or the second timer through other messages.

[0139] In one possible implementation, before step S301, the method further includes: the terminal device sending third information to the network device, where the third information is used to indicate that the terminal device supports the sending of the first information. It can also be understood that the third information is used to indicate that the terminal device supports the function of waking up the broadcast signal on the secondary cell by sending the first information to the network device. In this way, the network device can determine, based on the third information, that the terminal device supports the sending of the first information, and send configuration information of the first information to the terminal device, so that the terminal device can send the first information based on the configuration information.

[0140] In the method shown in FIG. 3 , the first information sent by the terminal device in step S302 can be implemented in a variety of ways, which will be described below with reference to some implementation examples.

[0141] Implementation example one: in step S302, the first information sent by the terminal device is carried on the PUCCH (that is, the first information may be a type of UCI, or the first information is included in the UCI), and the format of the PUCCH is PUCCH format 0; wherein the value of the cyclic shift parameter of the PUCCH sequence is 2 or 5 or 8 or 11.

[0142] Optionally, the cyclic shift parameter of the PUCCH sequence may be m CS , m CS For the relationship with the bearer information, please refer to the previous description of PUCCH.

[0143] In implementation example 1, when the format of the PUCCH carrying the first information is PUCCH format 0, the cyclic shift parameter of the PUCCH sequence can be other values ​​(including 2, 5, 8, or 11) outside the currently defined parameter set (including 0, 1, 3, 4, 6, 7, 9, 10, etc.). In this way, while avoiding affecting other information transmitted by the PUCCH, it is also possible to reuse the mechanism in PUCCH format 0 of using different cyclic shift parameters to carry different information on the PUCCH, so as to carry the first information through the PUCCH.

[0144] Implementation example two: in step S302, the first information sent by the terminal device is carried on the PUCCH (that is, the first information may be a type of UCI, or the first information is included in the UCI), and the format of the PUCCH is PUCCH format 2 or format 3 or format 4; wherein, among the multiple information carried by the PUCCH, the first information is located after the SR.

[0145] In implementation example 2, when the format of the PUCCH carrying the first information is PUCCH format 2 / 3 / 4, the first information is located after the SR carried by the PUCCH. In this way, the impact on the parsing of the SR can be avoided and the implementation complexity can be reduced.

[0146] Optionally, among the multiple information carried by the PUCCH, the first information satisfies at least one of the following: located before a cyclic redundancy check (CRC), located after hybrid automatic repeat request-acknowledgement (HARQ-ACK) information, and located before the CSI.

[0147] Traditionally, when UCI is transmitted using PUCCH format 2, format 3, or format 4, the UCI bit sequence is denoted as Seq UCI Among them, the bit sequence Seq UCI The length of O UCI =O ACK +O SR +O CSI +O CRC ;

[0148] Among them, O ACK is the number of bits carrying HARQ-ACK information in the sequence, O SR is the number of bits carrying SR information in the sequence, O CSIis the number of bits carrying CSI information in the sequence, O CRC is the number of bits in the sequence that carry CRC information. The bit sequence is arranged in the above order.

[0149] In the above implementation example 2, the UCI bit sequence may also include the first information, that is, one or more bits in the UCI bit sequence are used to carry the first information. In this case, the bit sequence Seq UCI The length of may also be related to the first information. The number of bits of the first information is denoted as 0. WUS Take for example, an exemplary description is given.

[0150] As an example, the first information may be located between the SR and the CSI. Accordingly, the bit sequence Seq of the UCI is UCI The length of O UCI =O ACK +O SR +O WUS +O CSI +O CRC ;

[0151] Among them, O WUS is the number of bits in the sequence that carries the first information. The bit sequence is arranged in the above order, namely: Seq UCI No. O ACK +O SR +O WUS The bits are used to represent the first information. WUS =1 bit as an example, when its value is "1", it represents that the terminal device has sent the first information and indicates the wake-up of the SCell of the terminal device through the first information.

[0152] As another example, the first information may be located before the ACK. Accordingly, the bit sequence Seq of the UCI is UCI The length of O UCI =O WUS +O ACK +O SR +O CSI +O CRC ;

[0153] Among them, O WUS is the number of bits in the sequence that carries the first information. The bit sequence is arranged in the above order, namely: Seq UCI No. O WUS The bits are used to represent the first information. WUS =1 bit as an example, when its value is "1", it represents that the terminal device has sent the first information and indicates the wake-up of the SCell of the terminal device through the first information.

[0154] As another example, the first information may be located between ACK and SR. Accordingly, the bit sequence Seq of UCI is UCI The length of O UCI =O ACK +O WUS +O SR +O CSI +O CRC ;

[0155] Among them, O WUS is the number of bits in the sequence that carries the first information. The bit sequence is arranged in the above order, namely: Seq UCI No. O ACK +O WUS The bits are used to represent the first information. WUS =1 bit as an example, when its value is "1", it represents that the terminal device has sent the first information and indicates the wake-up of the SCell of the terminal device through the first information.

[0156] As another example, the first information may be located between the CSI and the CRC. Accordingly, the bit sequence Seq of the UCI is UCI The length of O UCI =O ACK +O SR +O CSI +O WUS +O CRC ;

[0157] Among them, O WUS is the number of bits in the sequence that carries the first information. The bit sequence is arranged in the above order, namely: Seq UCI No. O ACK +O SR +O CSI +O WUS The bits are used to represent the first information. WUS =1 bit as an example, when its value is "1", it represents that the terminal device has sent the first information and indicates the wake-up of the SCell of the terminal device through the first information.

[0158] Please refer to Figure 6a, which is a schematic diagram of a communication device provided in this application. The communication device can be an internal module of a terminal device or a network device, and executes each of the steps of the terminal device or network device described above. For example, the communication device shown in Figure 6a can be a chip, a baseband chip, a modem chip, a system-on-chip (SoC) chip containing a modem core, a system-in-package (SIP) chip, a communication module, or a chip system.

[0159] As shown in FIG6 a , the communication device may include one or more memories, one or more processors, and one or more computer-readable media.

[0160] Optionally, any two of the memory, processor, and computer-readable medium may communicate with each other via a communication interface, or any one of the memory, processor, and computer-readable medium may communicate with the outside world via a communication interface. Optionally, the communication process may be performed via a bus, and the communication interface may be a bus interface.

[0161] As an example, a processing system can be implemented using a bus architecture, generally represented by a bus. The bus can include any number of interconnecting buses and bridges, depending on the specific application and overall design constraints of the processing system. The bus communicatively couples various circuits together, including one or more processors (generally represented by a processor), memory, and computer-readable media (generally represented by a computer-readable medium). The bus can also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further. The bus interface provides an interface between the bus and the transceiver and between the bus and the interface.

[0162] As an example, a communication interface may also be referred to as a transceiver, which provides a communication interface or device for communicating with various other devices via a wireless transmission medium. The transceiver may be coupled to an antenna array, and the transceiver and antenna array may be used together to communicate with the corresponding network type. At least one interface (e.g., a network interface and / or a user interface) provides a communication interface or device for connecting an internal bus to an external transmission medium.

[0163] As an example, the processor is responsible for managing the bus and general processing, including executing software stored on a computer-readable medium. When the software is executed by the processor, the software causes the processing system to perform various functions described below for any particular device.

[0164] As an example, the functions that can be implemented by the processor, memory and computer-readable medium can be: encoding, decoding, rate matching, de-rate matching, scrambling, de-scrambling, modulation, demodulation, layer mapping, fast Fourier transform, inverse fast Fourier transform, discrete Fourier transform, precoding, resource element (RE) mapping, channel equalization, de-RE mapping, digital beamforming, adding a cyclic prefix (CP), removing CP, etc.

[0165] As an example, in the one or more processors shown in Figure 6a, at least one processor may include communication and processing circuitry. The communication and processing circuitry may include one or more hardware components that provide a physical structure that performs various processes associated with wireless communication (e.g., signal reception and / or signal transmission). The communication and processing circuitry may include two or more transmit / receive chains. The functions implemented by the communication and processing circuitry may also be processed on a computer-readable medium.

[0166] Optionally, as shown in Figure 6b, the at least one processor may further include a coding module / coding circuit configured for UCI coding, and an RE mapping module. The coding module / coding circuit may include a function for encoding one or more of HARQ-ACK information, CSI, SR, and the first information. In uplink transmission, it can be mapped to RE (for example, RE on PUCCH) through the RE mapping module. In addition, the coding module / coding circuit can be used to implement UCI coding using low-density parity check code (LDPC), polarization code or other methods for encoding corresponding HARQ ACK, SR, CSI, and the first information. The function of the coding circuit can also be processed on a computer-readable medium.

[0167] Referring to Figure 7, an embodiment of the present application provides a communication device 700. This communication device 700 can implement the functions of the communication device (the communication device is a terminal 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 700 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 700 as an example.

[0168] In one possible implementation, when the device 700 is used to execute the method executed by the terminal device in the aforementioned Figure 3 and related embodiments, the device 700 includes a processing unit 701 and a transceiver unit 702; the transceiver unit 702 is used to receive a first message, and the first message is used to carry the configuration of the first information, and the first information is used to wake up the SCell of the terminal device that does not send a broadcast signal; the processing unit 701 is used to send the first information based on the first message; the transceiver unit 702 is also used to receive a broadcast signal, and the broadcast signal comes from one or more SCells in the SCell of the terminal device.

[0169] In one possible implementation, when the device 700 is used to execute the method executed by the network device in the aforementioned Figure 3 and related embodiments, the device 700 includes a processing unit 701 and a transceiver unit 702; the transceiver unit 702 is used to send a first message, and the first message is used to carry the configuration of the first information, and the first information is used to wake up the SCell of the terminal device that does not send a broadcast signal; the processing unit 701 is used to receive the first information based on the first message; the transceiver unit 702 is also used to send a broadcast signal, and the broadcast signal comes from one or more SCells in the SCell of the terminal device.

[0170] It should be noted that, for details on the information execution process of the units of the above-mentioned communication device 700, please refer to the description in the method embodiment shown above in this application, and no further details will be given here.

[0171] Please refer to Figure 8, which is another schematic structural diagram of a communication device 800 provided in this application. Communication device 800 includes a logic circuit 801 and an input / output interface 802. Communication device 800 may be a chip or an integrated circuit. The transceiver unit 702 shown in Figure 7 may be a communication interface, which may be the input / output interface 802 in Figure 8. The input / output interface 802 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.

[0172] In one possible implementation, when the device 800 is used to execute the method executed by the terminal device in the aforementioned Figure 3 and related embodiments, the input-output interface 802 is used to receive a first message, which is used to carry the configuration of the first information, and the first information is used to wake up the SCell of the terminal device that does not send a broadcast signal; the logic circuit 801 is used to send the first information based on the first message; the input-output interface 802 is also used to receive a broadcast signal, which comes from one or more SCells in the SCell of the terminal device.

[0173] In one possible implementation, when the device 800 is used to execute the method executed by the network device in the aforementioned Figure 3 and related embodiments, the input-output interface 802 is used to send a first message, and the first message is used to carry the configuration of the first information, and the first information is used to wake up the SCell of the terminal device that does not send a broadcast signal; the logic circuit 801 is used to receive the first information based on the first message; the input-output interface 802 is also used to send a broadcast signal, and the broadcast signal comes from one or more SCells in the SCell of the terminal device.

[0174] The logic circuit 801 and the input / output interface 802 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.

[0175] In a possible implementation, the processing unit 701 shown in FIG. 7 may be the logic circuit 801 in FIG. 8 .

[0176] Optionally, the logic circuit 801 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.

[0177] 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.

[0178] 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.

[0179] Optionally, the processing device may be one or more chips, or one or more processors.

[0180] It is understood that the processor in the embodiments of the present application may be a central processing unit, or may be other general-purpose processors, digital signal processors, application-specific integrated circuits (ASICs), network processors, field programmable gate arrays, programmable controllers, 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.

[0181] An embodiment of the present application further 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 the possible implementation methods of the terminal device or network device in the aforementioned embodiment.

[0182] An embodiment of the present application also provides a computer program product (or computer program). When the computer program in 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.

[0183] 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.

[0184] 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.

[0185] 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.

[0186] 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.

[0187] 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.

[0188] 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.

[0189] 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.

[0190] In this application, when entity A sends information to entity B, it can be done directly from A to B or indirectly through another entity. Similarly, when entity B receives information from entity A, it can be done directly from entity B or indirectly through another entity. Entities A and B herein can be RAN nodes or terminals, or modules within a RAN node or terminal. The sending and receiving of information can be information exchange between a RAN node and a terminal, for example, between a base station and a terminal; the sending and receiving of information can also be information exchange between two RAN nodes, for example, between a CU and a DU; the sending and receiving of information can also be information exchange between different modules within a device, for example, between a terminal chip and other modules in the terminal, or between a base station chip and other modules within the base station.

[0191] In this application, configuration and pre-configuration may be used at the same time. Configuration refers to the network equipment such as a base station or server sending the configuration information or parameter values ​​of some parameters 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 a network equipment such as a base station or server 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 to set 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.

[0192] In the present application, "used for indication" may include being used for direct indication and being used for 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. Among them, in the present application, the information indicated by the indication information is called 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 through 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 relationship 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 by the protocol), thereby reducing the indication overhead to a certain extent.

[0193] Optionally, 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 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 one or a combination of at least two of radio resource control (RRC) signaling, MAC layer signaling and physical layer signaling. Among them, MAC layer signaling, for example, includes MAC CE; physical layer signaling, for example, includes DCI.

[0194] The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after 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. And, 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.

[0195] 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.

[0196] 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.

[0197] 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.

[0198] 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. A communication method, characterized in that: include: receiving a first message, where the first message is used to carry configuration of first information, and the first information is used to wake up a secondary cell (SCell) of a terminal device that does not send a broadcast signal; sending the first information based on the first message; Receive a broadcast signal from one or more SCells in the SCell of the terminal device.

2. The method according to claim 1, characterized in that Before receiving the broadcast signal, the method further includes: Second information is received, where the second information is used to indicate the one or more SCells.

3. The method according to claim 2, characterized in that The first information includes a first field, the bit length of which is the maximum number of SCells supported by the terminal device; the i-th bit of the first field is used to indicate whether to wake up the i-th SCell of the terminal device.

4. The method according to any one of claims 1 to 3, characterized in that After sending the first information based on the first message, the method further includes: When the first timer times out and the information indicating the one or more SCells is not received, the first information is retransmitted, wherein the first timer is started at the pth time unit after the first information is sent, and p is a natural number; or when the second timer times out and the broadcast signal is not received, the first information is retransmitted, wherein the second timer is started at the qth time unit after the first information is sent, and q is a natural number.

5. The method according to any one of claims 1 to 4, characterized in that The first information is carried on a physical uplink control channel (PUCCH), and the format of the PUCCH is a physical uplink control channel format (PUCCH format 0); The cyclic shift parameter value of the PUCCH sequence is 2, 5, 8 or 11.

6. The method according to any one of claims 1 to 4, characterized in that The first information is carried on a PUCCH, and the format of the PUCCH is PUCCH format 2, format 3, or format 4; Among the multiple information carried by the PUCCH, the first information is located after the scheduling request SR.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: Send third information, where the third information is used to indicate that the terminal device supports the sending of the first information.

8. A communication method, characterized in that: include: Sending a first message, where the first message is used to carry configuration of first information, and the first information is used to wake up a secondary cell (SCell) of a terminal device that does not send a broadcast signal; receiving the first information based on the first message; The broadcast signal is sent through one or more SCells in the SCell of the terminal device.

9. The method according to claim 8, characterized in that Before sending the broadcast signal, the method further includes: Second information is sent, where the second information is used to indicate the one or more SCells.

10. The method according to claim 9, characterized in that The first information includes a first field, the bit length of which is the maximum number of SCells supported by the terminal device; the i-th bit of the first field is used to indicate whether to wake up the i-th SCell of the terminal device.

11. The method according to any one of claims 8 to 10, characterized in that The first information is carried on a physical uplink control channel (PUCCH), and the format of the PUCCH is a physical uplink control channel format (PUCCH format 0); The cyclic shift parameter value of the PUCCH sequence is 2, 5, 8 or 11.

12. The method according to any one of claims 8 to 10, characterized in that The first information is carried on a PUCCH, and the format of the PUCCH is PUCCH format 2, format 3, or format 4; Among the multiple information carried by the PUCCH, the first information is located after the scheduling request SR.

13. The method according to any one of claims 8 to 12, characterized in that The method further comprises: Send third information, where the third information is used to indicate that the terminal device supports the sending of the first information.

14. A communication device, characterized in that: Comprising means for performing the method according to any one of claims 1 to 13.

15. A communication device, characterized in that: The method comprises at least one processor configured to execute the method according to any one of claims 1 to 13.

16. A readable storage medium, characterized in that The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 13 is implemented.

17. A computer program product, characterized in that When the computer program in the computer program product is executed by a communication device, the method according to any one of claims 1 to 13 is implemented.

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