Communication method and device

Abstract

The invention provides a communication method and device, aims to reduce the power consumption of terminal equipment, and relates to the technical field of wireless communication. In the method, a first communication device comprises a first module and a second module, and the power consumption of the first module is lower than that of the second module. Wherein the first communication device obtains first information, and the first information is used for determining a function executed by the first module and / or a function executed by the second module. And the first communication device awakens the first module and / or the second module to execute corresponding functions based on the first information. Based on the scheme, the function executed by the first module and / or the function executed by the second module are indicated through the first information. Therefore, the second module can execute part of functions, the first module can execute part of functions, and compared with the prior art in which all functions are executed by the second module, the frequency of waking up the second module can be reduced, so that frequent waking up of the second module can be avoided, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and in particular, to a communication method and apparatus. Background Art

[0002] In Release 18, the 3rd generation partnership project (3GPP) has studied the low power (LP) wake up signal (WUS) with the aim of evaluating the potential of terminals equipped with low power radio (LR) to reduce power consumption. Generally speaking, even when a terminal does not send or receive any data, it will consume dozens of milliwatts of power, which is called idle power consumption. This idle power consumption is caused by the fact that the terminal must regularly measure and detect potential LP-WUS. Among them, the LR will regularly measure and detect the LP-WUS, and the main radio (MR) can be turned off when the LR is active and searching for potential LP-WUS signals. The LR can wake up the MR to send and receive data when a LP-WUS is detected.

[0003] However, each turn-on and turn-off of the MR has additional energy consumption. Among them, when the power amplifier (PA) of the MR is turned on, there is a power ramp-up, which brings a certain delay and additional power consumption from zero to a steady state. Therefore, it is difficult to achieve an energy-saving effect by frequently waking up the MR. Summary of the Invention

[0004] This application provides a communication method and apparatus, in order to reduce the power consumption of terminal devices.

[0005] In a first aspect, a communication method is provided. This method can be executed by a first communication device or a chip / chip system. Among them, the first communication device can be a network device or a terminal device. In this method, the first communication device includes a first module and a second module, and the power consumption of the first module is lower than that of the second module. Among them, the first communication device obtains first information, and the first information is used to determine the functions executed by the first module and / or the second module. The first communication device wakes up the first module and / or the second module to execute corresponding functions based on the first information.

[0006] Based on this solution, the functions executed by the first module and / or the second module are indicated by the first information. Therefore, the second module can execute some functions, and the first module can execute some functions. Compared with the related art in which all functions are executed by the second module, the number of times of waking up the second module can be reduced. Therefore, it is possible to avoid frequently waking up the second module and achieve the purpose of energy saving.

[0007] In a possible implementation of the first aspect, the first communication device receives first information, and the first information is carried in a low-power wake-up signal or radio resource control signaling.

[0008] In a second aspect, a communication method is provided. The method may be executed by a second communication device or a chip / chip system. Among them, the second communication device may be a network device or a terminal device. In this method, the second communication device determines first information, and the first information is used to determine the function executed by the first module of the first communication device and / or the function executed by the second module of the communication device. The power consumption of the first module is lower than that of the second module. The second communication device sends the first information to the first communication device.

[0009] In a possible implementation of the second aspect, the first information is carried in a low-power wake-up signal or radio resource control signaling.

[0010] In a possible implementation of the first aspect and the second aspect, when the first information is carried in radio resource control signaling, the first information includes the condition for waking up the second module and / or the condition for waking up the first module.

[0011] Based on the above solution, the base station can use radio resource control signaling to carry the first information. Compared with carrying the first information through a low-power wake-up signal, the resources occupied by the low-power wake-up signal can be saved.

[0012] In a possible implementation of the first aspect and the second aspect, the condition for waking up the second module and / or the condition for waking up the first module includes one or more of the data volume size, quality of service list, or reference signal received power.

[0013] Based on the above solution, by using one or more of the data volume size, quality of service list, or reference signal received power as the condition for waking up the second module and / or the condition for waking up the first module, the requirements for different data volume sizes, service requirements, and channel qualities can be met.

[0014] In a possible implementation of the first aspect and the second aspect, the first information is determined based on one or more of the following: the correspondence between the cell active period and the function executed by the first module, the correspondence between the cell active period and the function executed by the second module, the correspondence between the cell inactive period and the function executed by the first module, or the correspondence between the cell inactive period and the function executed by the second module.

[0015] Based on this solution, by predefining or preconfiguring the correspondence between the cell active period / cell inactive period and the function executed by the first module / second module, it is not necessary to use additional information to indicate the first information, and transmission resources can be saved.

[0016] In a possible implementation of the first aspect and the second aspect, the functions performed by the second module include one or more of the following: activating the uplink function and the downlink function of the second module, activating the uplink function of the second module, activating the downlink function of the second module, closing the reception of the downlink control channel of the second module, activating the transmission function of the uplink control channel of the second module, and activating the measurement function of the channel quality of the second module.

[0017] Based on the above solution, since the functions performed by the second module include one or more of the above, that is, include some of the functions performed by the second module in the related art, the second module will not be frequently awakened, achieving an energy-saving effect.

[0018] In a possible implementation of the first aspect and the second aspect, the first information is used to determine to activate the uplink function of the second module and indicate to activate the downlink function of the first module. Alternatively, the first information is used to determine to activate the downlink function of the second module and activate the uplink function of the first module. Alternatively, the first information is used to determine to activate the uplink function and the downlink function of the second module. Alternatively, the first information is used to determine to activate the uplink function and the downlink function of the first module.

[0019] Based on the above solution, the first module and the second module can be determined to cooperate in performing uplink and downlink functions through the first information, which can save the energy consumption of the terminal while meeting the service requirements.

[0020] In a possible implementation of the first aspect and the second aspect, the first information is used to determine to activate the function of the second module to perform synchronization signal block (SSB) synchronization, measurement, or data reception, and the first information is used to determine to activate the function of the first module to send feedback information of hybrid automatic repeat request.

[0021] Based on the above solution, since the second module has high power and large bandwidth, performing SSB synchronization, measurement, or data reception through the second module can improve the accuracy of SSB synchronization, the accuracy of measurement results, and the accuracy of data reception. In addition, since the first module has low power and low energy consumption, sending feedback information of hybrid automatic repeat request through the first module can reduce the energy consumption of the terminal.

[0022] In a possible implementation of the first aspect and the second aspect, when the first information is used to determine to activate the function of the first module to send feedback information of hybrid automatic repeat request, the first information also indicates the time domain resource for sending the feedback information.

[0023] In a possible implementation of the first aspect and the second aspect, the first information further indicates a first duration for the second module to switch to the first module, and the first duration is less than or equal to the maximum duration required by the hybrid automatic repeat request timer. In a possible case, the first information may indicate the duration T for the second module to switch to the first module and the delay (offset) of the first module scheduling the uplink frame (U frame), where T + offset ≤ the maximum duration required by the hybrid automatic repeat request timer.

[0024] Based on the above solution, since data is received through the second module and feedback information is sent through the first module, the terminal needs to switch from the second module to the first module. Therefore, through the above first duration and the maximum duration required by the hybrid automatic repeat request timer, the configuration of the first duration can be restricted, and it can be ensured that the feedback information is sent within the duration required by the hybrid automatic repeat request.

[0025] In a possible implementation of the first aspect and the second aspect, the first information further indicates to repeatedly send the feedback information of the hybrid automatic repeat request in the time domain.

[0026] Based on the above solution, since the power of the first module is low and the uplink coverage is poor, by repeatedly sending the feedback information in the time domain, the grading gain can be improved and the accuracy of network - side reception can be enhanced.

[0027] In a possible implementation of the first aspect and the second aspect, the first information is used to determine to activate the sensing measurement function of the first module and activate the sending function of the sensing measurement result of the second module.

[0028] Based on the above solution, although the power of the first module is low, the first module can also complete the sensing measurement function, which can save the power consumption of the terminal. And since the power of the second module is high, the second module is used to send the sensing measurement result, which can increase the possibility of the sensing measurement result being accurately received.

[0029] In a possible implementation of the first aspect and the second aspect, the sensing measurement result is carried in the uplink control channel, and the first information further indicates the resource set of the uplink control channel. The resource set of the uplink control channel includes the number of time - domain symbols, the frequency - domain offset, and the cyclic shift size.

[0030] In a possible implementation of the first aspect and the second aspect, the first information further indicates the working duration of the second module. In a possible example, the first information may indicate the activation time and the de - activation time of the second module to implement indicating the working duration of the second module.

[0031] Based on the above solution, indicating the working duration of the second module through the first information can prevent the second module from being in the active state (wake-up state) for a long time, and can save the energy consumption of the terminal.

[0032] In a possible implementation manner of the first aspect and the second aspect, the first information further indicates that the signal format of the uplink control channel is format 0 based on the base sequence.

[0033] Based on the fact that the signal format of the uplink control channel is format 0 based on the base sequence, it is possible to repeatedly transmit the uplink control channel in the time domain, and compared with the signal using the demodulation reference signal (DMRS) format, the processing is simple and the power consumption is low.

[0034] In a possible implementation manner of the first aspect and the second aspect, the first information is further used to determine that in data retransmission, the initial transmission data uses the first module or the second module, and the retransmission data uses the first module or the second module.

[0035] In a possible implementation manner of the first aspect and the second aspect, the first information further indicates the number of retransmissions.

[0036] In a possible implementation manner of the first aspect and the second aspect, the first information is used to determine that in data retransmission, the initial transmission data uses the second module and the retransmission data uses the first module, and the first information further indicates the data header position and the modulation and coding strategy.

[0037] Based on this solution, the initial transmission is performed by the second module and the retransmission is performed by the first module. Since the power of the second module is high, the possibility of correct transmission at one time can be improved, and since the energy consumption of the first module is low during retransmission, the energy consumption of the terminal can be reduced.

[0038] In a possible implementation manner of the first aspect and the second aspect, the first information is used to indicate the first configuration information and the second configuration information of the uplink reference signal, where the first configuration information corresponds to the first module and the second configuration information corresponds to the second module.

[0039] In a possible implementation manner of the first aspect and the second aspect, the first configuration information includes a first power control factor, a first initial power value, and a first closed-loop power control step size, and the second configuration information includes a second power control factor, a second initial power value, and a second closed-loop power control step size. Among them, the first power control factor is different from the second power control factor, the first initial power value is less than the second initial power value, and the first closed-loop power control step size is different from the second closed-loop power control step size.

[0040] Based on the above solution, by indicating the configuration information of different SRSs through the first information, the terminal can determine the power control formula of the SRS based on this configuration information and the indication of the first information.

[0041] In a third aspect, a communication device is provided, including a first module and a second module. Among them, the power consumption of the first module is lower than that of the second module.

[0042] The first module or the second module is configured to obtain first information, where the first information is used to determine the function executed by the first module and / or the function executed by the second module. The first module is further configured to execute a corresponding function based on the first information, and / or the first module is further configured to wake up the second module based on the first information, and the second module is further configured to execute a corresponding function.

[0043] In a possible implementation manner of the third aspect, the first module or the second module is further configured to receive the first information, where the first information is carried in a low-power wake-up signal or a radio resource control signaling.

[0044] In a fourth aspect, a communication device is provided, including a processing unit and a transceiver unit.

[0045] The processing unit is configured to determine first information, where the first information is used to determine the function executed by the first module of the first communication device and / or the function executed by the second module of the communication device, and the power consumption of the first module is lower than that of the second module. The transceiver unit is configured to send the first information to the first communication device.

[0046] In a possible implementation manner of the fourth aspect, the first information is carried in a low-power wake-up signal or a radio resource control signaling.

[0047] In a possible implementation manner of the third aspect and the fourth aspect, when the first information is carried in a radio resource control signaling, the first information includes the condition for waking up the second module and / or the condition for waking up the first module.

[0048] In a possible implementation manner of the third aspect and the fourth aspect, the condition for waking up the second module and / or the condition for waking up the first module includes one or more of the data volume size, the quality of service list, or the reference signal received power.

[0049] In a possible implementation manner of the third aspect and the fourth aspect, the first information is determined based on one or more of the following: the correspondence between the cell active period and the function executed by the first module, the correspondence between the cell active period and the function executed by the second module, the correspondence between the cell inactive period and the function executed by the first module, or the correspondence between the cell inactive period and the function executed by the second module.

[0050] In a possible implementation of the third aspect and the fourth aspect, the functions performed by the second module include one or more of the following: activating the uplink function and the downlink function of the second module, activating the uplink function of the second module, activating the downlink function of the second module, closing the reception function of the downlink control channel of the second module, activating the transmission function of the uplink control channel of the second module, and activating the measurement function of the channel quality of the second module.

[0051] In a possible implementation of the third aspect and the fourth aspect, the first information is used to determine the activation of the uplink function of the second module and indicates the activation of the downlink function of the first module. Alternatively, the first information is used to determine the activation of the downlink function of the second module and activates the uplink function of the first module. Alternatively, the first information is used to determine the activation of the uplink function and the downlink function of the second module. Alternatively, the first information is used to determine the activation of the uplink function and the downlink function of the first module.

[0052] In a possible implementation of the third aspect and the fourth aspect, the first information is used to determine the activation of the function of the second module to perform SSB synchronization, measurement, or data reception, and the first information is used to determine the activation of the function of the first module to send feedback information of the hybrid automatic repeat request.

[0053] In a possible implementation of the third aspect and the fourth aspect, when the first information is used to determine the activation of the function of the first module to send feedback information of the hybrid automatic repeat request, the first information further indicates the time domain resource for sending the feedback information.

[0054] In a possible implementation of the third aspect and the fourth aspect, the first information further indicates the first duration for the second module to switch to the first module, and the first duration is less than or equal to the maximum duration required by the hybrid automatic repeat request timer. In a possible case, the first information may indicate the duration T for the second module to switch to the first module and the delay (offset) of the first module to schedule the uplink frame (U frame), where T + offset ≤ the maximum duration required by the hybrid deterioration automatic repeat request timer.

[0055] In a possible implementation of the third aspect and the fourth aspect, the first information further indicates the repeated transmission of the feedback information of the hybrid automatic repeat request in the time domain.

[0056] In a possible implementation of the third aspect and the fourth aspect, the first information is used to determine the activation of the sensing measurement function of the first module and the activation of the function of the second module to send the sensing measurement result.

[0057] In a possible implementation of the third and fourth aspects, the sensing measurement result is carried on the uplink control channel, and the first information further indicates the resource set of the uplink control channel. The resource set of the uplink control channel includes the number of time-domain symbols, the frequency-domain offset, and the cyclic shift size.

[0058] In a possible implementation of the third and fourth aspects, the first information further indicates the operating duration of the second module. In a possible example, the first information may indicate the moment to activate the second module and the moment to deactivate the second module to implement indicating the operating duration of the second module.

[0059] In a possible implementation of the third and fourth aspects, the first information further indicates that the signal format of the uplink control channel is format 0 based on the base sequence.

[0060] In a possible implementation of the third and fourth aspects, the first information is further used to determine that in data retransmission, the initial transmission data uses the first module or the second module, and the retransmission data uses the first module or the second module.

[0061] In a possible implementation of the third and fourth aspects, the first information further indicates the number of retransmissions.

[0062] In a possible implementation of the third and fourth aspects, the first information is used to determine that in data retransmission, the initial transmission data uses the second module, and the retransmission data uses the first module. The first information further indicates the data header position and the modulation and coding strategy.

[0063] In a possible implementation of the third and fourth aspects, the first information is used to indicate the first configuration information and the second configuration information of the uplink reference signal. The first configuration information corresponds to the first module, and the second configuration information corresponds to the second module.

[0064] In a possible implementation of the third and fourth aspects, the first configuration information includes the first power control factor, the first initial power value, and the first closed-loop power control step size. The second configuration information includes the second power control factor, the second initial power value, and the fourth closed-loop power control step size. Among them, the first power control factor is different from the second power control factor, the first initial power value is less than the second initial power value, and the first closed-loop power control step size is different from the second closed-loop power control step size.

[0065] In a fifth aspect, the present application provides a communication device, including a processor. The processor is coupled to a memory. The memory is used to store computer programs or instructions. The processor is used to execute the computer programs or instructions to perform the implementation methods of the above first and second aspects. The memory may be located inside the device or outside the device. The number of the processors is one or more.

[0066] In a sixth aspect, the present application provides a communication device, including: a processor and an interface circuit, where the interface circuit is used to communicate with other devices, and the processor is used for the implementation methods of the first aspect and the second aspect above.

[0067] In a seventh aspect, a communication device is provided. The device includes a logic circuit and an input / output interface.

[0068] In an eighth aspect, the present application provides a communication system, including: a first communication device and a second communication device for executing the implementation methods of the first aspect and the second aspect above.

[0069] In a ninth aspect, the present application further provides a chip system, including: a processor for executing the implementation methods of the first aspect and the second aspect above.

[0070] In a tenth aspect, the present application further provides a computing program product, including computer execution instructions. When the computer execution instructions run on a computer, the implementation methods of the first aspect and the second aspect above are executed.

[0071] In an eleventh aspect, the present application further provides a computer-readable storage medium. A computer program or instructions are stored in the computer-readable storage medium. When the instructions run on a computer, the implementation methods of the first aspect and the second aspect above are implemented.

[0072] The technical effects achieved by the third aspect to the eleventh aspect above can refer to the technical effects in the first aspect and the second aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application;

[0074] Figure 2 is a schematic block diagram of a terminal provided by an embodiment of the present application;

[0075] Figure 3 is an exemplary flowchart of a communication method provided by an embodiment of the present application;

[0076] Figure 4 is a schematic diagram of DTX / DRX provided by an embodiment of the present application;

[0077] Figure 5 is a schematic diagram of a scenario of a communication method provided by an embodiment of the present application;

[0078] Figure 6A is a schematic diagram of the time-domain resources of a PUCCH carrying HARQ feedback information provided by an embodiment of the present application;

[0079] Figure 6BSchematic diagram of PUCCH retransmission provided by an embodiment of the present application;

[0080] Figure 7 Scenario schematic diagram of another communication method provided by an embodiment of the present application;

[0081] Figure 8 Schematic diagram of a communication device provided by an embodiment of the present application;

[0082] Figure 9 Schematic diagram of another communication device provided by an embodiment of the present application;

[0083] Figure 10 Schematic diagram of another communication device provided by an embodiment of the present application;

[0084] Figure 11 Schematic diagram of another communication device provided by an embodiment of the present application. Detailed implementation manners

[0085] To facilitate understanding of the technical solutions provided by the embodiments of the present application, the following explains and describes the technical terms involved in the embodiments of the present application.

[0086] 1) Low power wake up signal (LP-WUS) is used in multiple low-power communication protocols, such as long range radio (LoRa), bluetooth, or wireless fidelity (WiFi). LP-WUS allows for the design and implementation of low-power receivers, which helps reduce device power consumption. LP-WUS is very similar to WUS. WUS is sent based on the traditional Zadoff-Chu (ZC) sequence and the downlink control information (DCI) in format 2-6 of the physical downlink control channel (PDCCH). If WUS is detected, the paging message will continue to be decoded; otherwise, the device will return to the sleep state and wait for the next opportunity to receive WUS.

[0087] The technical solutions of the embodiments of this application can be applied to New Radio (NR) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, fifth-generation communication systems (5 th generation, 5G), next-generation wireless communication systems such as 6G, etc., which are not limited here.

[0088] Figure 1 It is a schematic diagram of the architecture of the communication system 1000 to which the embodiments of this application are applied. As Figure 1 shown, the communication system includes a radio access network 100. Among them, the radio access network 100 may include at least one network device (such as Figure 1 110a and / or 110b in Figure 1 ), and may also include at least one terminal device (such as Figure 1 at least one of 120a - 120j in Figure 1 ). The terminal device is connected to the access network device wirelessly, and the access network device is connected to the core network device wirelessly or wiredly. The terminal devices and the network devices can be connected to each other wirelessly or wiredly.

[0089] A network device is a network-side device with wireless transceiver capabilities. The network device can be a device in a radio access network (RAN) that provides wireless communication capabilities for terminal devices, referred to as a RAN device. For example, the network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5th generation (5G) mobile communication system, a next generation NodeB in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes some functions of the base station. For example, it can be a central unit (CU) or a distributed unit (DU). Here, the CU completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete some or all of the functions of the physical layer. For specific descriptions of the above various protocol layers, reference can be made to the relevant technical specifications of the 3rd generation partnership project (3GPP). The network device can be a macro base station (such as Figure 1 110a in Figure 1 ), or a micro base station or an indoor station (such as 110b in ), or a relay node or a donor node, etc. The embodiments of this application do not limit the specific technologies and specific device forms adopted by the network device.

[0090] In another possible scenario, multiple RAN nodes cooperate to assist a terminal in achieving wireless access, and different RAN nodes respectively implement partial functions of a base station. For example, the RAN node can be a CU, a DU, a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as included in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0091] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU may also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (ORAN) system, the CU can also be called an O-CU (open CU), the DU can also be called an O-DU, the CU-CP can also be called an O-CU-CP, the CU-UP can also be called an O-CU-UP, and the RU can also be called an O-RU. For the convenience of description, in this application, the CU, CU-CP, CU-UP, DU, and RU are used as examples for description. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0092] A terminal device is a user-side device with wireless transceiver capabilities. A terminal device can also be referred to as a user equipment (UE), mobile station, mobile terminal, etc. Terminal devices can be widely applied 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 wearables, smart transportation, smart city, etc. Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. Embodiments of this application do not limit the specific technologies and specific device forms adopted by the terminal device.

[0093] Network devices and terminal devices can be fixed in position or movable. Network devices and terminal devices can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airplanes, balloons, and artificial satellites in the air. Embodiments of this application do not limit the application scenarios of network devices and terminal devices.

[0094] The roles of network devices and terminal devices can be relative. For example, Figure 1 the helicopter or drone 120i in can be configured as a mobile network device. For the terminal devices 120j that access the radio access network 100 through 120i, the terminal device 120i is a network device; but for the network device 110a, 120i is a terminal device, that is, the communication between 110a and 120i is through the radio air interface protocol. Of course, the communication between 110a and 120i can also be through the interface protocol between network devices. At this time, relative to 110a, 120i is also a network device. Therefore, network devices and terminal devices can both be uniformly referred to as communication devices. Figure 1 110a and 110b in can be referred to as communication devices with network device functions. Figure 1 120a - 120j in can be referred to as communication devices with terminal device functions.

[0095] In the embodiments of the present application, the functions of the network device can also be performed by a module (such as a chip) in the network device, or can be performed by a control subsystem including the functions of the network device. The control subsystem including the functions of the network device here can be a control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal device can also be performed by a module (such as a chip or a modem) in the terminal device, or can be performed by a device including the functions of the terminal device. In the following, an example will be described in which the functions of the terminal device are performed by the terminal and the functions of the network device are performed by the base station.

[0096] With the development of 5G technology, the 5G network has higher and higher requirements for the capabilities of terminals. As the requirements for terminal capabilities increase, the hardware of the terminal will increase accordingly, and the power consumption of the terminal will inevitably increase. Compared with LTE terminals, the maximum power supported by 5G terminals is 29 dBm. In typical services, such as comprehensive web browsing, instant messaging, games, or food, etc., the communication power consumption of 5G terminals increases by more than 200% on average compared with LTE terminals. The long-term battery life of the terminal is an important aspect of the user experience and will affect the applicability of 5G terminals or services. Therefore, the long-term battery life of 5G terminals faces great challenges, and studying how to save the power consumption of 5G terminals is the key to solving this problem.

[0097] Referring to Figure 2 , the terminal can include a low power wake up radio (LR) and a main radio (MR). It can be understood that LR and MR can be integrated as logical function modules on the same processor (chip), or LR and MR can be separate processors (chips) respectively. The power consumption of LR is lower than that of MR. In another example, the bandwidth of LR is also lower than that of MR. It should be noted that MR and LR are only shown as exemplary names. LR can also be called a secondary module, and MR can also be called a primary module. The present application does not make specific limitations. In the embodiments of the present application, an example will be described in which LR is the first module and MR is the second module.

[0098] In Release 18, the 3rd generation partnership project (3GPP) has been researching on the low power (LP) wake up signal (WUS) with the aim of evaluating the potential of 5G terminals with low LR to reduce power consumption. Generally speaking, even when a 5G terminal does not send or receive any data, it will consume dozens of milliwatts of power, which is called idle power consumption. This idle power consumption is due to the fact that 5G terminals must regularly measure and detect potential LP-WUS. Among them, the LR will regularly measure and detect the LP-WUS, and the MR can be turned off when the LR is active and searching for potential LP-WUS signals. The LR can wake up the MR to send and receive data when a LP-WUS is detected.

[0099] However, each turn-on and turn-off of the MR has additional energy consumption. Among them, when the power amplifier (PA) of the MR is turned on, there is a power ramp-up, which brings a certain time delay and additional power consumption for the power to change from zero to a steady state. For example, when doing radio resource management (RRM) measurements, the LR can receive the LP-WUS and wake up the MR for RRM measurements. After the measurements are completed, the MR can go to sleep. Another example is that after the LR receives the LP-WUS, it can wake up the MR to receive and demodulate signals. In these processes, waking up the MR will generate additional power consumption. Therefore, it is difficult to achieve an energy-saving effect by frequently waking up the main module.

[0100] In view of this, an embodiment of the present application provides a communication method. In this method, the LP-WUS is used to indicate the functions performed by the LR and / or the functions performed by the MR. Therefore, the MR can perform some functions, and the LR can perform some functions. Compared with the related art where all functions are performed by the MR, the number of times the MR is woken up can be reduced. Therefore, frequent waking up of the MR can be avoided, achieving the purpose of energy saving.

[0101] Refer to Figure 3 , which is an exemplary flowchart of a communication method provided by an embodiment of the present application, and may include the following operations. Figure 3 In the illustrated embodiment, the first communication device may include a first module and a second module, and the power consumption of the first module is higher than that of the second module. Figure 3 In the illustrated embodiment, taking the first communication device as a terminal and the second communication device as a base station as an example for illustration,

[0102] S301: The base station sends the first information to the terminal.

[0103] Correspondingly, the terminal receives the first information from the base station.

[0104] Among them, the first information can be used to determine the function of the first module and / or the function of the second module. For example, the first information can be used to determine the function of the first module, such as the function of LR. For another example, the first information can be used to determine the function of the second module, such as the function of MR. For yet another example, the first information can be used to determine the functions of the first module and the second module, such as the functions of LR and MR.

[0105] S302: The terminal wakes up the first module and / or the second module to execute the corresponding function.

[0106] For example, when the function executed by the first module is determined based on the first information, the terminal can wake up the first module to execute the determined function. For another example, when the function executed by the second module is determined based on the first information, the terminal can wake up the second module to execute the determined function. For yet another example, when the functions of the first module and the second module are determined based on the first information, the terminal can wake up the first module and the second module to execute the determined functions.

[0107] It can be understood that the first information can be carried in LP-WUS, or can also be carried in radio resource control (RRC) signaling, or can also be determined by implicit indication. The following is introduced in different cases.

[0108] Case 1: The first information can be carried in LP-WUS.

[0109] For example, the first module can receive LP-WUS, and LP-WUS can indicate the function of the first module and / or the second module. In one possible case, an indicator, that is, the first information, can be carried in LP-WUS to indicate the function of the first module and / or the second module. The following shows an example in which the first information indicates the function of the second module in combination with Table 1.

[0110] Table 1: Example of the first information indicating the function of the second module

[0111] First Information (indicator) Function of the second module 0 Activate the uplink and downlink functions of the second module 1 Activate the downlink function of the second module 2 Activate the uplink function of the second module 3 Disable the PDCCH reception function of the second module 4 Activate the physical uplink control channel transmission function of the second module 5 Activate the channel quality measurement function of the second module

[0112] In Table 1, when the value of the first information is 0, it can indicate to activate (or turn on) the uplink function and the downlink function of the second module, or it can indicate not to turn off the second module. For example, in the case of large data volume transmission, it is necessary to turn on both the uplink and downlink of the second module to meet the requirements of high data volume and low latency. At this time, setting the first information to 0 can indicate that the terminal activates the uplink function and the downlink function of the second module for large data volume transmission.

[0113] When the value of the first information is 1, it can indicate to activate (or turn on) the downlink function of the second module, or it can indicate to turn off the uplink function of the second module. For example, in the case of a large amount of data, it is necessary to turn on the downlink function of the second module to meet the quantity requirements. At this time, setting the first information to 1 can indicate that the terminal activates the downlink function of the second module to receive data.

[0114] Optionally, in this case, the first module and the second module can exchange information and cooperate to complete the uplink and downlink functions. For example, data can be received through the second module, and feedback information of the data, such as hybrid auto repeat request (HARQ) feedback information, can be sent through the first module. After the second module successfully receives and decodes the data, it can inform the first module, and the first module can send an acknowledgement (ACK) to the base station. After the second module fails to receive and decode the data, it can inform the first module, and the first module can send a non-acknowledgement (NACK) to the base station.

[0115] When the value of the first information is 2, it can indicate to activate (or turn on) the uplink function of the second module, or it can indicate to turn off the downlink function of the second module. For example, when the first module receives a downlink signal and operates in a low-power state, such as receiving a sensing signal, etc., since the power consumption of the first module is low, the uplink coverage is limited, and it is necessary to turn on the uplink function of the second module to feedback the measurement result. At this time, setting the first information to 1 can indicate that the terminal activates the uplink function of the second module to complete the feedback.

[0116] In Table 1, turning off the receiving function of the PDCCH of the second module can be understood as not monitoring (monitor) or blindly detecting the PDCCH. Activating the sending function of the physical uplink control channel (PUCCH) of the second module can also be referred to as turning on the sending function of the PUCCH of the second module. Activating the measurement function of the channel quality of the second module can be understood as activating the function of the second module to receive the channel state information (CSI) reference signal (RS) and activating the sending function of the PUCCH of the second module. The second module can send the channel quality indication (CQI) of the measurement result based on the CSI-RS to the base station through the PUCCH.

[0117] As can be seen from Table 1, the division rules for the content indicated by the first information can be divided according to uplink or downlink, or can also be divided according to different channels, or can also be divided according to different functions. Different division rules have different effects and energy consumption performances. For example, when divided according to uplink or downlink, all functions of uplink or downlink can be executed by the second module, which can meet different scenario requirements, such as the requirement of time delay. For another example, when divided according to different channels, all functions of a certain channel can be executed by the second module, which can improve the energy-saving effect compared with dividing according to uplink or downlink. For another example, when divided according to different functions, the second module can only execute the functions indicated by the first information, which can maximize the energy-saving effect compared with the previous two division methods.

[0118] It can be understood that the corresponding relationship between the first information shown in Table 1 and the functions of the second module is only shown as an example and does not constitute a limitation on this corresponding relationship. In addition, the values of the first information in Table 1 are also shown as examples. In the embodiments of the present application, the first information can also indicate the functions of the second module by indicating function identifiers and other means. The indication of the functions of the first module by the first information, the indication of the functions of the first module and the second module, etc. in the following text are also shown as examples and will not be repeated.

[0119] In a possible implementation manner, the first information can indicate the functions of the first module. Hereinafter, an example of the first information indicating the functions of the first module will be introduced in combination with Table 2.

[0120] Table 2: Examples of the first information indicating the functions of the first module

[0121] First Information (indicator) Function of the first module 6 Activate the channel quality measurement function of the first module 7 Activate the RRM measurement function of the first module 8 Activate the small data transmission function of the first module 9 Activate the sensing function of the first module 10 Activate the function of the first module to update the radio frequency channel data RF-map

[0122] In Table 2, when the value of the first information is 6, it can indicate to activate (or turn on) the channel quality measurement function of the first module. Activating the channel quality measurement function of the first module can be understood as activating the function of the first module to receive CSI-RS and activating the function of the first module to send PUCCH. The first module can send the CSI-RS-based measurement result CQI to the base station through PUCCH.

[0123] When the value of the first information is 7, it can indicate to activate (or turn on) the RRM measurement function of the first module. Activating the RRM measurement function of the first module can be understood as activating the function of the first module to receive signals of neighboring cells and activating the function of the first module to send PUCCH. Although the structure of the first module is simple, the first module can complete the measurement of CSI-RS or signals of neighboring cells, as well as the function of sending PUCCH. Compared with the second module executing the channel quality measurement function and the RRM measurement function, it can save the power consumption of the terminal.

[0124] When the value of the first information is 8, it can indicate to activate (or turn on) the small data transmission function of the first module. The first module has a simple structure, large data processing delay, and low power consumption. Therefore, it is suitable for use in small data transmission (SDT) scenarios with low data volume and insensitive delay. Therefore, the first information can be set to 8 to indicate that the terminal activates the first module to send or receive data.

[0125] In Table 2, activating the sensing function of the first module can be understood as activating (or turning on) the function of the first module to receive sensing signals and send sensing results. Activating the function of the first module to update the RF-map can be understood as activating (or turning on) the function of the first module to receive sensing signals and process to obtain the RF-map. In the embodiments of the present application, the RF-map can indicate the following two aspects of information:

[0126] On the one hand, the RF-map corresponds to a certain geographical area and is used to indicate the geographical locations and area sizes of multiple regions divided within the geographical area. On the other hand, the RF-map can indicate the channel quality prediction values of each region among the multiple regions. Among them, the geographical area can be a region within a certain range in the real physical world. Among them, the multiple regions can be regions obtained by dividing the geographical area in a certain manner. In the present application, the shapes, contours, sizes, radii, and areas of different regions are the same. The geographical locations of different regions are different. There is no overlap between different regions.

[0127] In the embodiments of the present application, the first module and the second module can cooperate to complete the uplink and downlink functions. In one possible case, when the first information indicates the function of the second module, the function of the first module can be indicated by the second module to the first module. For another example, when the first information indicates the function of the first module, the function of the second module can be indicated by the first module to the second module.

[0128] For example, when the first information indicates the downlink function of the second module, the second module activates the downlink function to receive data. If the data needs to feedback ACK / NACK, since the first information indicates the downlink function of the second module, the second module cannot activate the uplink function, and the second module can indicate the first module to feedback the ACK / NACK of the data. For another example, when the first information indicates the downlink function of the first module, the first module activates the downlink function to receive data. If the data needs to feedback ACK / NACK, since the first information indicates the downlink function of the first module, the first module cannot activate the uplink function, and the first module can indicate the second module to feedback the ACK / NACK of the data.

[0129] For another example, when the first information indicates the downlink function of the second module, the terminal completes SSB synchronization, measurement, data reception, etc. through the downlink function of the second module. The second module may instruct the first module to complete the uplink function, such as sending measurement results, feedback of ACK / NACK of data, etc.

[0130] In another possible case, the first information may indicate the functions of the first module and the second module. Hereinafter, an introduction will be given in conjunction with Table 3.

[0131] Table 3: Examples of the first information indicating the functions of the first module and the second module

[0132]

[0133] In Table 3, when the value of the first information is 0, it may indicate to activate (or turn on) the uplink function and the downlink function of the second module, without activating the first module or rather turning off the first module. When the value of the first information is 1, it may activate the downlink function of the second module and at the same time activate the uplink function of the first module, and so on.

[0134] Based on the above Case 1, the first information may be carried in the LP-WUS, so it can be received by the first module, which can avoid waking up the second module to obtain the first information, thereby achieving the purpose of energy saving. In addition, the first information may indicate the function of the first module and / or the function of the second module. Compared with the related art in which the second module performs all functions, in the embodiments of the present application, the second module may perform part of the functions, and the first module may perform part of the functions. Therefore, it is possible to avoid frequently waking up the second module and improve the energy saving effect.

[0135] Case 2: The first information is carried in the RRC signaling.

[0136] For example, the first information may be carried in RRC reconfiguration, RRC connection reestablishment and other signaling, and the present application does not make specific limitations.

[0137] In Case 2, the first information may include the condition for waking up the first module and / or the condition for waking up the second module. For example, the first information may include the data volume, quality of service (QoS), or reference signal receive power (RSRP).

[0138] For example, in the downlink scenario, the base station can send the size of the data to be transmitted to the terminal through the first piece of information. The terminal can compare the received data size with the data volume threshold to determine whether to receive through the first module or the second module. For example, when the data size is less than (or equal to) the data volume threshold, the terminal can determine to wake up the first module and receive the data through the first module. For another example, when the data size is greater than (or equal to) the data volume threshold, the terminal can determine to wake up the second module and receive the data through the second module. It can be understood that the data volume threshold can be indicated by the base station, pre-configured, or predefined by the protocol. If the data volume threshold is indicated by the base station, the data volume threshold can be carried in the first piece of information or sent to the terminal through a signaling different from the first piece of information.

[0139] For another example, in the downlink scenario, the base station can determine the latency requirement of the service and send the quality of service, such as the latency requirement, to the terminal. The terminal can compare based on the latency requirement and the quality of service threshold to determine whether to receive through the first module or the second module. For example, when the latency requirement is greater than (or equal to) the quality of service threshold, the terminal can determine to wake up the first module and receive the data through the first module. For another example, when the latency requirement is less than (or equal to) the quality of service threshold, the terminal can determine to wake up the second module and receive the data through the second module. It can be understood that the quality of service threshold can be indicated by the base station, pre-configured, or predefined by the protocol. If the quality of service threshold is indicated by the base station, the quality of service threshold can be carried in the first piece of information or sent to the terminal through a signaling different from the first piece of information.

[0140] In the downlink scenario, for the RSRP, it can be implemented by referring to the aforementioned quality of service and data size. The base station can determine the required RSRP and send it to the terminal, and the repeated parts will not be elaborated.

[0141] In the uplink scenario, the base station can send one or more of the data volume threshold, quality of service threshold, or RSRP threshold to the intermediate terminal. For example, the base station can send the data volume threshold to the terminal, and the terminal can determine whether to send through the first module or the second module based on the size of the data to be transmitted. For example, when the data size is less than (or equal to) the data volume threshold, the terminal can determine to wake up the first module and send the data through the first module. For another example, when the data size is greater than (or equal to) the data volume threshold, the terminal can determine to wake up the second module and send the data through the second module.

[0142] In the uplink scenario, for the quality of service threshold and RSRP threshold, they can be implemented by referring to the aforementioned data volume threshold, and the repeated parts will not be elaborated.

[0143] Based on the above solution, the base station can carry the first information through RRC signaling, which can save the resources occupied by LP-WUS compared with carrying the first information through LP-WUS.

[0144] Case 3: The first information is determined based on an implicit indication.

[0145] For example, one or more of the correspondence relationships predefined or preconfigured by the protocol between the cell active period and the functions performed by the first module, the correspondence relationship between the cell active period and the functions performed by the second module, the correspondence relationship between the cell inactive period and the functions performed by the first module, or the correspondence relationship between the cell inactive period and the functions performed by the second module.

[0146] In Case 3, the cell active period may include one or more of cell discontinuous reception (DRX), cell discontinuous transmission (DTX), or connected discontinuous reception (C-DRX) in the connected state. The cell inactive period may include deep sleep.

[0147] That is to say, one or more of the correspondence relationships between DRX and the functions performed by the first module, the correspondence relationship between DRX and the functions performed by the second module, the correspondence relationship between DTX and the functions performed by the first module, the correspondence relationship between DTX and the functions performed by the second module, the correspondence relationship between C-DRX and the functions performed by the first module, or the correspondence relationship between C-DRX and the functions performed by the second module can be predefined or preconfigured by the protocol.

[0148] In Case 3, the terminal can request the base station to exit the cell active period through UL LP-WUS, such as exiting DRX, DTX, or C-DRX, etc. After exiting the cell active period, the terminal can determine to perform the corresponding functions based on the first module or based on the second module according to the above correspondence relationship. It can be understood that the functions of the first module and the second module can be divided according to channels, functions, or uplink and downlink, which can be referred to as shown in Tables 1 to 3 and will not be elaborated here.

[0149] Refer to Figure 4During DRX, the terminal can execute uplink functions through the second module and optionally execute downlink functions through the first module. Alternatively, during DRX, the terminal can execute uplink functions through the first module and optionally execute downlink functions through the second module. For another example, after the terminal exits DRX, that is, during sleep, it can execute uplink functions through the first module and optionally execute downlink functions through the second module, or after the terminal exits DRX, it can execute uplink functions through the second module and optionally execute downlink functions through the first module. For another example, during DTX, the terminal can execute uplink functions through the first module and optionally execute downlink functions through the second module, or during DTX, the terminal can execute uplink functions through the second module and optionally execute downlink functions through the first module. For another example, after the terminal exits DTX, that is, during sleep, it can execute uplink functions through the first module and optionally execute downlink functions through the second module, or after the terminal exits DTX, it can execute uplink functions through the second module and optionally execute downlink functions through the first module.

[0150] Based on Scenario 3, by predefining or preconfiguring the correspondence between the cell active period / cell inactive period and the functions executed by the first module / second module, it is possible to indicate the first information without additional information, saving transmission resources. Moreover, by defining the cell active period and cell inactive period and the functions executed by the first module and the second module, it is possible to compatibly support terminals with DRX, DTX, or C-DRX.

[0151] In the embodiments of this application, the methods for determining the functions executed by the first module and / or the second module through the first information are introduced through the above Scenario 1 to Scenario 3. Refer to Figure 5 , which shows a schematic diagram of the scenario of a communication method provided by the embodiments of this application. As Figure 5 shown, in the related art, after the first module receives LP-WUS, it will wake up the second module to execute corresponding functions, such as Function 1, Function 2, Function 3, and Function 4. Therefore, as Figure 5 shown, the power consumption of the second module is relatively high. Moreover, in the related art, the first module wakes up the second module every time it receives LP-WUS, resulting in the second module being frequently woken up, thus bringing additional power consumption and poor energy-saving effect.

[0152] In the embodiments of this application, the first information can indicate that the second module enables some functions, such as Function 2. At this time, it can be selected that the first module completes the remaining functions, such as Function 1. Or, it can also be selected to only enable some functions, such as Function 3 and Function 4, and turn off the rest of the functions. As Figure 5As shown, it can be seen that the power consumption of the second module is relatively low compared to the related art. Moreover, each time the first module receives the LP-WUS, it can determine whether to wake up the second module according to the first information carried in the LP-WUS, which can effectively avoid the second module being frequently woken up and improve the energy-saving effect.

[0153] The following describes other contents indicated by the first information in different scenarios.

[0154] Scenario 1: The first information indicates to activate the downlink function of the second module, that is, to turn off the uplink function of the second module. The uplink function is executed by the first module.

[0155] In a possible implementation, the first information indicates to activate the second module to perform SSB synchronization, measurement, and data reception. Based on the first information or the indication of the second module, the terminal can activate the function of the first module to send HARQ feedback information for data.

[0156] The terminal can activate the second module to perform SSB synchronization and SSB measurement, so as to access the cell. The terminal can receive data from the cell through the second module. If the terminal receives and decodes successfully, the terminal can send an ACK through the first module. If the terminal receives and decodes failed, the terminal can send a NACK through the first module.

[0157] In a possible example, the first information can also indicate the time-domain resource of the PUCCH carrying the HARQ feedback information. For example, the first information can indicate K1 + the first offset to indicate the time-domain resource of the PUCCH. Refer to Figure 6A , K1 indicates the time-domain interval from the second module receiving the data carried in the physical downlink shared channel (PDSCH) to sending an ACK, and the first offset represents the time-domain interval from activating the first module to sending an ACK. That is to say, the first offset represents the duration of the first module scheduling the uplink frame (U frame).

[0158] Since the uplink function needs to be completed by the second module, the uplink coverage is poor and the power is small. Therefore, the delay of the HARQ feedback information may be relatively high. If the base station does not receive the HARQ feedback information for a long time, it will send the PDSCH again. At this time, it is necessary to configure the second module to switch to the first module for a first duration through the first information, which is less than or equal to the maximum duration required by the HARQ timer. For example, the first duration T + the first offset ≤ the maximum duration required by the HARQ timer can be configured through the first information.

[0159] In a possible scenario, due to the low power consumption of the first module and its limited coverage ability, when using the first module to send PUCCH, the signal may not be able to be sent to the base station due to power consumption issues. At this time, the PUCCH can be configured to be repeatedly sent in the time domain through the first information to enhance coverage, and the base station obtains the hierarchical gain through multiple receptions. Refer to Figure 6B , the first information can configure the format of the PUCCH to be format 0 based on the base sequence. Among them, the repetition times n and the repetition interval T2 can be indicated by the first information.

[0160] In another possible implementation, the first information can indicate that the terminal activates the first module to send uplink data. For example, the first module can carry the uplink data on the physical uplink shared channel (PUSCH) for transmission. Exemplarily, the first information can indicate the modulation and coding scheme (MCS) of the PUSCH. Since the first module has low power consumption, when the first module performs uplink data transmission, generally high code rate and high MCS configurations are not required. At this time, the first information can indicate a smaller MCS to transmit uplink data, such as restricting the maximum modulation to 16 quadrature amplitude modulation (QAM).

[0161] In yet another possible implementation, the first information can indicate that the terminal performs feedback on the channel quality. Optionally, the channel quality measurement function can be performed by the second module. For example, the second module can receive CSI-RS and perform measurements to obtain the measurement results. The first module can generate CQI based on the measurement results. Exemplarily, the first information can indicate the number of bits used in the table for sending CQI. For example, the first information can indicate that the table of CQI uses fewer bits, such as less than 5 bits for indication. For example, the first information can indicate using 2 bits to indicate CQI.

[0162] Scenario 2: The first information indicates that the second module activates the sending function of the PUCCH.

[0163] For example, the first module performs sensing measurement functions. Refer to Figure 7 , the terminal can activate the first module for sensing and receive the sensing signal. The terminal receives LP-WUS, and the first information is carried in LP-WUS, indicating that the second module activates the sending function of the PUCCH. Then the terminal can activate the second module and send the sensing result obtained by measuring the sensing signal to the base station through the PUCCH.

[0164] In one example, the first information may further indicate the resource set of the PUCCH. Among them, the resource set of the PUCCH may include the number of time-domain symbols, frequency-domain offset, cyclic shift size, etc.

[0165] In another example, the first information may further indicate the working duration of the second module. For example, the first information may indicate the start time and end time of the second module to indicate the working duration of the second module. For another example, the first information may indicate the start time of the timer and the timing duration of the timer, and this timing duration can be understood as the working duration of the second module. Based on this solution, indicating the working duration of the second module can prevent the second module from being in the wake-up state for a long time and reduce the power consumption of the terminal.

[0166] In yet another example, the first information may further indicate that the signal format of the PUCCH is sent using base sequence-based format 0. Compared with the signal using the demodulation reference signal (DMRS) format, the processing is simple and the power consumption is low.

[0167] Scenario three: HARQ retransmission.

[0168] In the HARQ retransmission scenario, the first information may further indicate that the initial transmission is performed using the first module or the initial transmission is performed using the second module. The first information may further indicate that the retransmission is performed using the first module, or the retransmission is performed using the second module. The first information may further indicate the number of retransmissions. In this method, if the initial transmission is performed using the second module and the retransmission is performed using the first module, since the power of the second module is high, the possibility of correct transmission at one time can be increased, and since the power consumption of the first module is low during retransmission, the power consumption of the terminal can be reduced.

[0169] In one possible case, assuming that the initial transmission is performed by the second module and the retransmission is performed by the first module, the indication information used to indicate the execution of the first module or the second module during retransmission may be the newly added indication information in LP-WUS. In another possible case, assuming that the initial transmission is performed by the second module and the retransmission is performed by the first module, the indication information used to indicate the execution of the first module or the second module during retransmission may reuse the existing field in LP-WUS, such as reusing the bit indicating MCS. Since the first module does not need to use a high MCS, one bit in the bits indicating MCS can be reused to indicate the execution of the first module or the second module during retransmission, and the remaining 4 bits indicate MCS for the first module to select data modulation.

[0170] In one example, the first information may further indicate different redundancy version numbers, and this redundancy version number may indicate the data header position.

[0171] Scenario 4: The first piece of information instructs the second module to activate the SRS transmission function.

[0172] For example, the first piece of information can instruct to activate the SRS transmission function of the second module. The terminal can activate the second module to perform positioning using SRS, or use the channel measurement results of SRS and the uplink-downlink reciprocity to obtain the downlink channel quality for data demodulation.

[0173] In a possible scenario, the first piece of information can include the first configuration information and the second configuration information. Among them, the first configuration information can be the configuration information used to send SRS through the first module, and the second configuration information can be the configuration information used to send SRS through the second module.

[0174] Next, the power control formula of SRS will be introduced.

[0175]

[0176] Combined with the power control formula of SRS, the first configuration information can include the first power control factor α SRS,b,f,c (q s ), the first initial power value and the first closed-loop power control step size h b,f,c (i, l). Similarly, the second configuration information can include the second power control factor α SRS,b,f,c (q s ), the second initial power value and the second closed-loop power control step size h b,f,c (i, l).

[0177] It can be understood that since the power consumption of the first module is lower than that of the second module, the first initial power value can be less than the second initial power value. The first closed-loop power control step size is different from the second closed-loop power control step size, and the first power control factor is different from the second power control factor.

[0178] Based on the above solution, by instructing different SRS configuration information through the first piece of information, the terminal can determine the power control formula of SRS based on this configuration information and the instruction of the first piece of information.

[0179] In a possible scenario, the processing operation of the base station can be executed by the CU, and the transceiver operation of the base station can be executed by the DU or RU. For example, the CU can determine the first piece of information and send the first piece of information to the DU. The DU can send the first piece of information to the terminal, or the DU can send the first piece of information to the RU, and the RU sends it to the terminal.

[0180] In another possible scenario, the processing operations of the base station can be performed by the CU-CP, and the transceiver operations of the base station can be performed by the DU or RU. For example, the CU-CP can determine the first information and send the first information to the DU. The DU can send the first information to the terminal, or the DU can send the first information to the RU, and the RU sends it to the terminal.

[0181] In the O-RAN scenario, the operations performed by the above-mentioned CU can be performed by the O-CU, the operations performed by the DU can be performed by the O-DU, the operations performed by the RU can be performed by the O-RU, and the operations performed by the CU-CP can be performed by the O-CU-CP.

[0182] Based on the following embodiments, the communication device provided in the embodiments of the present application will be introduced. Figure 8 It is a schematic block diagram of the communication device 800 provided in the embodiments of the present application. The communication device 800 can correspondingly implement the functions or steps implemented by the terminal or the base station in the above-mentioned various method embodiments. The communication device may include a first module 810 and a second module 820. The first module 810 and the second module 820 can be independently set or integrated. Among them, the first module 810 may include a processing unit 811 and a transceiver unit 812. Optionally, a storage unit may also be included, and the storage unit may be used to store instructions (codes or programs) and / or data. The processing unit 811 and the transceiver unit 812 can be coupled to the storage unit. For example, the processing unit 811 can read the instructions (codes or programs) and / or data in the storage unit to implement the corresponding method. The above-mentioned various units can be independently set, or partially or fully integrated. Similarly, the second module 820 may include a processing unit 821 and a transceiver unit 822. Optionally, a storage unit may also be included.

[0183] Optionally, the above-mentioned transceiver unit 812 (transceiver unit 822) may include a sending unit and a receiving unit. Among them, the sending unit can be used to perform all the sending operations performed by the communication device 1100, and the receiving unit can be used to perform all the receiving operations performed by the communication device 1100.

[0184] In some possible implementation manners, the communication device 1100 can correspondingly implement the behaviors and functions of the terminal and the like in the above-mentioned method embodiments. For example, the communication device 800 can be a terminal or a component (such as a chip or a circuit) applied to the terminal. The transceiver unit 812 (transceiver unit 822) can be used to perform Figure 3 all the receiving or sending operations performed by the terminal in the illustrated embodiments. For example Figure 3 S301 in the illustrated embodiments, and / or other processes for supporting the technologies described herein; wherein, the processing unit 811 (processing unit 821) is used to perform as Figure 3All operations other than the transceiver operations performed by the terminal in the illustrated embodiments.

[0185] For example, the transceiver unit 812 (transceiver unit 822) is configured to obtain first information for determining functions performed by a first module and / or functions performed by a second module. The processing unit 811 (processing unit 821) is configured to perform corresponding functions based on the first information.

[0186] In some possible implementation manners, the communication device 1100 can correspondingly implement the behaviors and functions of the base station in the foregoing method embodiments. For example, the communication device 800 can be a base station or a component applied to the base station (such as a chip or a circuit). The transceiver unit 812 (transceiver unit 822) can be used to perform Figure 3 All receiving or transmitting operations performed by the base station in the illustrated embodiments. For example Figure 3 S8301 in the illustrated embodiments, and / or other processes for supporting the technologies described herein; wherein, the processing unit 811 (processing unit 821) is used to perform Figure 3 All operations other than the transceiver operations performed by the base station in the illustrated embodiments.

[0187] For example, the processing unit 811 (processing unit 821) is configured to determine first information for determining functions performed by a first module of a first communication device and / or functions performed by a second module of the communication device, where the power consumption of the first module is lower than that of the second module. The transceiver unit 812 (transceiver unit 822) is configured to send the first information to the first communication device.

[0188] For operations performed by the processing unit 811 (processing unit 821) and the transceiver unit 812 (transceiver unit 822), reference can be made to the relevant descriptions in the foregoing method embodiments.

[0189] It should be understood that the processing unit 800 in the embodiments of the present application can be implemented by a processor or processor-related circuit components, and the transceiver unit 800 can be implemented by a transceiver or transceiver-related circuit components or a communication interface.

[0190] Based on the same concept, as Figure 9 shown, an embodiment of the present application provides a communication device 900. The communication device 900 includes a processor 910. Optionally, the communication device 900 may further include a memory 920 for storing instructions executed by the processor 910 or storing input data required for the processor 910 to run the instructions or storing data generated after the processor 910 runs the instructions. The processor 910 can implement the method shown in the foregoing method embodiments through the instructions stored in the memory 920.

[0191] Based on the same concept, asFigure 10 As shown in the figure, an embodiment of the present application provides a communication device 10000, which may be a chip or a chip system. Optionally, in the embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

[0192] The communication device 10000 may include at least one processor 1010, and the processor 1010 is coupled to a memory. Optionally, the memory may be located inside the device or outside the device. For example, the communication device 10000 may further include at least one memory 1020. The memory 1020 stores necessary computer programs, configuration information, computer programs or instructions, and / or data for implementing any of the above embodiments; the processor 1010 may execute the computer programs stored in the memory 1020 to complete the methods in any of the above embodiments.

[0193] The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information interaction between devices, units or modules. The processor 1010 may cooperate with the memory 1020. In the embodiment of the present application, the specific connection medium between the transceiver 1030, the processor 1010 and the memory 1020 is not limited.

[0194] The communication device 10000 may further include a transceiver 1030, and the communication device 10000 may perform information interaction with other devices through the transceiver 1030. The transceiver 1030 may be a circuit, a bus, a transceiver or any other device that can be used for information interaction, or is referred to as a signal transceiver unit. As Figure 10 shown, the transceiver 1030 includes a transmitter 1031, a receiver 1032 and an antenna 1033. In addition, when the communication device 10000 is a chip-type device or circuit, the transceiver in the communication device 10000 may also be an input / output circuit and / or a communication interface, which can input data (or receive data) and output data (or send data), and the processor is an integrated processor, a microprocessor or an integrated circuit, and the processor may determine the output data according to the input data.

[0195] In a possible implementation manner, the communication device 10000 may be applied to a terminal. Specifically, the communication device 1000 may be a terminal, or may be a device capable of supporting the terminal to implement the functions of the terminal in any of the above embodiments. The memory 1020 stores necessary computer programs, computer programs or instructions, and / or data for implementing the functions of the communication device in any of the above embodiments. The processor 1010 may execute the computer programs stored in the memory 1020 to complete the methods executed by the terminal in any of the above embodiments.

[0196] In a possible implementation, the communication device 1000 can be applied to a base station. Specifically, the communication device 1000 can be a base station or a device capable of supporting the base station to implement the functions of the base station in any of the above-mentioned embodiments. The memory 1020 stores the necessary computer programs, computer programs or instructions and / or data for implementing the functions of the base station in any of the above-mentioned embodiments. The processor 1010 can execute the computer programs stored in the memory 1020 to complete the methods executed by the base station in any of the above-mentioned embodiments.

[0197] In the embodiments of the present application, the processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0198] In the embodiments of the present application, the memory can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and can also be a volatile memory, such as a random-access memory (RAM). The memory can also be any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in the embodiments of the present application can also be a circuit or any other device capable of implementing a storage function, for storing computer programs, computer programs or instructions and / or data.

[0199] Based on the above embodiments, see Figure 11 , the embodiments of the present application further provide another communication device 1100, including: a first module 1110 and a second module 1120. The first module 1110 includes an input / output interface 1111 and a logic circuit 1112; the input / output interface 1111 is used to receive code instructions and transmit them to the logic circuit 1112; the logic circuit 1112 is used to run the code instructions to execute the method executed by the first module in any of the above-mentioned embodiments. Similarly, the second module includes an input / output interface 1121 and a logic circuit 1122; the input / output interface 1121 is used to receive code instructions and transmit them to the logic circuit 1122; the logic circuit 1122 is used to run the code instructions to execute the method executed by the second module in any of the above-mentioned embodiments.

[0200] Optionally, the input / output interface 1111 (input / output interface 1121) can be an interface on the chip, and the logic circuit 1112 (logic circuit 1122) can be one or more processors. Optionally, the one or more processors can be located inside the device or outside the device.

[0201] Next, the operations performed by the communication device when applied to a terminal or a base station will be described in detail.

[0202] In an alternative embodiment, the communication device 1100 can be applied to a terminal to perform the method executed by the terminal, specifically, for example, the method executed by the terminal in the foregoing Figure 3 embodiment shown.

[0203] For example, the input / output interface 1111 (input / output interface 1121) is used to obtain first information, and the first information is used to determine the function executed by the first module and / or the function executed by the second module. The logic circuit 1112 (logic circuit 1122) is used to execute the corresponding function based on the first information.

[0204] Since the communication device 1100 provided in this embodiment can be applied to a terminal to complete the method executed by the terminal, the technical effects that can be obtained can refer to the foregoing method embodiment and will not be elaborated here.

[0205] In an alternative embodiment, the communication device 1100 can be applied to a base station to perform the method executed by the base station, specifically, for example, the method executed by the base station in the foregoing Figure 3 embodiment shown.

[0206] For example, the logic circuit 1112 (logic circuit 1122) is used to determine first information, and the first information is used to determine the function executed by the first module of the first communication device and / or the function executed by the second module of the communication device, and the power consumption of the first module is lower than that of the second module. The input / output interface 1111 (input / output interface 1121) is used to send the first information to the first communication device.

[0207] Since the communication device 1100 provided in this embodiment can be applied to a base station to complete the method executed by the base station, the technical effects that can be obtained can refer to the foregoing method embodiment and will not be elaborated here.

[0208] Based on the above embodiments, an embodiment of the present application further provides a communication system. The communication system includes at least one communication device applied to a terminal and at least one communication device applied to a base station. The technical effects that can be obtained can refer to the foregoing method embodiment and will not be elaborated here.

[0209] Based on the above embodiments, an embodiment of the present application further provides a system. The communication system includes at least one base station and a terminal.

[0210] Based on the above embodiments, an embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program or instructions. When the instructions are executed, the method executed by the terminal in any of the above embodiments or the method executed by the base station is implemented. The computer-readable storage medium may include: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories, random access memories, magnetic disks, or optical discs.

[0211] To implement the functions of the above Figures 8 to 11 communication device, an embodiment of the present application further provides a chip, including a processor, for supporting the communication device to implement the functions involved in the terminal or the base station in the above method embodiments. In a possible design, the chip is connected to a memory or the chip includes a memory, and the memory is used to store the necessary computer programs or instructions and data of the communication device.

[0212] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0213] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer programs or instructions. These computer programs or instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the specified functions in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0214] These computer programs or instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing devices to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions in Figure 1 one process or multiple processes and / or blocksFigure 1 The functions specified in one or more boxes.

[0215] These computer programs or instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide for implementing the steps of the functions specified in one or more processes and / or boxes Figure 1 One or more processes and / or boxes Figure 1 The steps of the functions specified in one or more boxes.

[0216] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A communication method, characterized in that, Applied to a communication device, the communication device includes a first module and a second module, and the power consumption of the first module is lower than that of the second module. The method includes: Obtain first information, where the first information is used to determine the function executed by the first module and / or the function executed by the second module; Based on the first information, wake up the first module and / or the second module to execute the corresponding function.

2. The method according to claim 1, characterized in that, The obtaining of the first information includes: Receive the first information, where the first information is carried in a low-power wake-up signal or a radio resource control signaling.

3. A communication method, characterized in that, Includes: Determine first information, where the first information is used to determine the function executed by the first module of the communication device and / or the function executed by the second module of the communication device, and the power consumption of the first module is lower than that of the second module; Send the first information to the communication device.

4. The method according to claim 3, characterized in that, The first information is carried in a low-power wake-up signal or a radio resource control signaling.

5. The method according to claim 2 or 4, characterized in that, When the first information is carried in the radio resource control signaling, the first information includes the condition for waking up the second module and / or the condition for waking up the first module.

6. The method according to claim 5, characterized in that, The condition for waking up the second module and / or the condition for waking up the first module includes one or more of the data volume size, the quality of service list, or the reference signal received power.

7. The method according to claim 1 or 3, characterized in that, The first information is determined based on one or more of the following: The correspondence between the cell active period and the function executed by the first module, the correspondence between the cell active period and the function executed by the second module, the correspondence between the cell inactive period and the function executed by the first module, or the correspondence between the cell inactive period and the function executed by the second module.

8. The method according to any one of claims 1 to 7, characterized in that, The functions executed by the second module include one or more of the following: Activate the uplink function and downlink function of the second module, activate the uplink function of the second module, activate the downlink function of the second module, turn off the receiving function of the downlink control channel of the second module, activate the sending function of the uplink control channel of the second module, activate the measurement function of the channel quality of the second module.

9. The method according to any one of claims 1 to 8, characterized in that, The first information is used to determine to activate the uplink function of the second module and the downlink function of the first module; or, the first information is used to determine to activate the downlink function of the second module and the uplink function of the first module; or, the first information is used to determine to activate the uplink function and downlink function of the second module; or, the first information is used to determine to activate the uplink function and downlink function of the first module.

10. The method according to claim 9, characterized in that, The first information is used to determine to activate the downlink function of the second module and the uplink function of the first module, including: The first information is used to determine to activate the function of the second module to execute synchronization signal block SSB synchronization, measurement, or data reception, and the first information is used to determine to activate the function of the first module to send feedback information of hybrid automatic repeat request.

11. The method according to claim 10, characterized in that, When the first information is used to determine to activate the function of the first module to send feedback information of hybrid automatic repeat request, the first information further indicates the time domain resource for sending the feedback information.

12. The method according to claim 10 or 11, characterized in that, The first information further indicates a first duration for the second module to switch to the first module, where the first duration is less than or equal to the maximum duration required by the hybrid automatic repeat request timer.

13. The method according to any one of claims 9 to 12, characterized in that, The first information further indicates repeating transmission of the feedback information of the hybrid automatic repeat request in the time domain.

14. The method according to claim 9, characterized in that, The first information is used to determine to activate the uplink function of the second module and indicate to activate the downlink function of the first module, including: The first information is used to determine to activate the sensing measurement function of the first module and activate the transmission function of the sensing measurement results of the second module.

15. The method according to claim 14, characterized in that, The sensing measurement results are carried in the uplink control channel, and the first information further indicates a resource set of the uplink control channel, where the resource set of the uplink control channel includes the number of time domain symbols, the frequency domain offset, and the cyclic shift size.

16. The method according to claim 15, characterized in that, The first information further indicates the working duration of the second module.

17. The method according to claim 15 or 16, characterized in that The first information further indicates that the signal format of the uplink control channel is format 0 based on the base sequence of the uplink control channel.

18. The method according to any one of claims 1 to 9, characterized in that The first information is further used to determine that in data retransmission, the initial transmission data uses the first module or the second module, and the retransmission data uses the first module or the second module.

19. The method according to claim 18, characterized in that The first information further indicates the number of retransmissions.

20. The method according to claim 18 or 19, characterized in that The first information is used to determine that in data retransmission, the initial transmission data uses the second module and the retransmission data uses the first module, and the first information further indicates the data header position and the modulation and coding strategy.

21. The method according to any one of claims 1 to 9, characterized in that The first information is used to indicate the first configuration information and the second configuration information of the uplink reference signal, where the first configuration information corresponds to the first module and the second configuration information corresponds to the second module.

22. The method according to claim 21, characterized in that The first configuration information includes a first power control factor, a first initial power value, and a first closed-loop power control step size, and the second configuration information includes a second power control factor, a second initial power value, and a second closed-loop power control step size; wherein, the first power control factor is different from the second power control factor, the first initial power value is less than the second initial power value, and the first closed-loop power control step size is different from the second closed-loop power control step size.

23. A communication device, characterized in that It includes a unit for executing the method according to any one of claims 1 to 2 or any one of claims 5 to 22, or includes a unit for executing the method according to any one of claims 3 to 22.

24. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which when called by an electronic device, cause the electronic device to execute the method according to any one of claims 1 to 2 or any one of claims 5 to 22, or cause the electronic device to execute the method according to any one of claims 3 to 22.

25. A communication system, characterized in that It includes a device for executing the method according to any one of claims 1 to 2 or any one of claims 5 to 22 and a device for executing the method according to any one of claims 3 to 22.

26. A chip system, characterized in that The chip system includes: A communication interface; A processor, configured to call and run the instructions through the communication interface, such that a device installed with the chip system executes the method according to any one of claims 1 to 2 or any one of claims 5 to 22, or such that a device installed with the chip system executes the method according to any one of claims 3 to 22.

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