Signal transmission method, terminal equipment, access network equipment and communication equipment

Abstract

The invention provides a signal transmission method, terminal equipment, access network equipment and communication equipment, and relates to the technical field of communication. The method comprises the following steps: receiving a random access response RAR, and scheduling a first physical uplink shared channel PUSCH based on the RAR; in response to the condition that the original sending power of a first channel to be transmitted and the original sending power of the first PUSCH meet a preset condition, the original sending power of the first channel is reduced, the first PUSCH and the first channel are used for carrier aggregation, and in order to ensure that random access of terminal equipment can be successful, the first PUSCH and the first channel are used for carrier aggregation. In the embodiment of the invention, the terminal equipment maintains the original sending power of the first PUSCH, so that the first PUSCH is successfully sent, meanwhile, the sending power of the first channel is reduced and sending is carried out, and signal loss can be avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of computer technologies, and particularly to a signal transmission method, a terminal device, an access network device, and a communication device. Background Art

[0002] A terminal device can establish a communication connection with a base station through random access, and the transmission of a PUSCH based on RAR scheduling is an important link in the random access process. In the scenario of New Radio Carrier Aggregation (NR CA), when power is allocated to the PUSCH based on RAR scheduling according to the existing power allocation scheme, the random access of the terminal device cannot be guaranteed to succeed. Summary of the Invention

[0003] The present disclosure provides a signal transmission method, a terminal device, an access network device, and a communication device.

[0004] The technical solution of the present disclosure is as follows:

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided a signal transmission method, the method including:

[0006] Receiving a random access response RAR, and scheduling a first physical uplink shared channel PUSCH based on the RAR;

[0007] In response to the original transmission power of a first channel to be transmitted and the original transmission power of the first PUSCH satisfying a preset condition, reducing the original transmission power of the first channel, where the first PUSCH and the first channel are used for carrier aggregation.

[0008] According to a second aspect of an embodiment of the present disclosure, there is provided a signal transmission method applicable to an access network device, the method including:

[0009] Sending an RAR, where the RAR is used to instruct a terminal device to schedule a first PUSCH;

[0010] Receiving the first PUSCH transmitted by the terminal device at the original transmission power;

[0011] Receiving a first channel transmitted by the terminal device at the reduced transmission power of the first channel, where the first PUSCH and the first channel are used for carrier aggregation.

[0012] According to a third aspect of an embodiment of the present disclosure, there is provided a terminal device, the terminal device including:

[0013] A transceiver module, configured to receive a random access response RAR, and schedule a first physical uplink shared channel PUSCH based on the RAR;

[0014] A processing module, configured to reduce the original transmission power of the first channel in response to that the original transmission power of the first channel to be transmitted satisfies a preset condition with the original transmission power of the first PUSCH, where the first PUSCH and the first channel are used for carrier aggregation.

[0015] According to a fourth aspect of the embodiments of the present disclosure, there is provided an access network device, including:

[0016] A transceiver module, configured to send a RAR, where the RAR is used to instruct a terminal device to schedule a first PUSCH, and receive the first PUSCH transmitted at the original transmission power, and receive a first channel transmitted at the reduced transmission power of the first channel to be transmitted, where the first PUSCH and the first channel are used for carrier aggregation.

[0017] According to a fifth aspect of the embodiments of the present disclosure, there is provided a communication device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, a signal transmission method provided in the first aspect or the second aspect of the present disclosure is implemented.

[0018] According to a sixth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium. When instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute a data processing method provided in the first aspect or the second aspect of the present disclosure.

[0019] According to a seventh aspect of the embodiments of the present disclosure, there is provided a computer program product, including a computer program, characterized in that when the computer program is executed by a processor, a data processing method provided in the first aspect or the second aspect of the present disclosure is implemented.

[0020] According to an eighth aspect of the embodiments of the present disclosure, there is provided a chip system, including a processing unit and an interface circuit. The processing unit obtains program instructions through the interface circuit, and the program instructions are executed by the processing unit. The processing unit is configured to execute the steps of a data processing method provided in the first aspect or the second aspect.

[0021] The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects:

[0022] A signal transmission method according to an embodiment of the present disclosure. In the case where there is a transmission power conflict when simultaneously transmitting on the first PUSCH and the first channel, in order to ensure the successful random access process of the terminal device, the terminal device maintains the original transmission power of the first PUSCH and at the same time reduces the transmission power of the first channel. This can not only enable the successful transmission of the first PUSCH, but also allow the simultaneous transmission of the first channel, and can avoid signal loss.

[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings herein are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure, and do not constitute an improper limitation of the present disclosure.

[0025] Figure 1 is a flowchart showing a signal transmission method according to an exemplary embodiment.

[0026] Figure 2 is a flowchart showing another signal transmission method according to an exemplary embodiment.

[0027] Figure 3 is a flowchart showing another signal transmission method according to an exemplary embodiment.

[0028] Figure 4 is an interaction diagram showing a signal transmission method according to an exemplary embodiment.

[0029] Figure 5 is a structural block diagram showing a communication device according to an exemplary embodiment.

[0030] Figure 6 is a structural block diagram showing another communication device according to an exemplary embodiment.

[0031] Figure 7 is a structural block diagram showing a chip system according to some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In order to enable those of ordinary skill in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0033] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present disclosure are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0034] It should be noted that the signal transmission method provided in this application is applicable to the New Radio Carrier Aggregation (NR CA) scenario, in which two or more Component Carriers (CCs) can be aggregated together to support a wider transmission bandwidth. The signal transmission method provided in this application can allocate sufficient transmission power for the PUSCH scheduled based on the RAR to ensure that the terminal device successfully completes the random access process.

[0035] Figure 1 It is a schematic flow chart of a signal transmission method provided by an embodiment of the present disclosure.

[0036] As Figure 1 shown, the signal transmission method is executed by a terminal device, and the method includes the following steps:

[0037] S101, receive the RAR and schedule the first PUSCH based on the RAR.

[0038] In some embodiments, the terminal device includes, for example, at least one of a mobile phone, a wearable device, an Internet of Things device, an automobile with communication function, a smart automobile, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in an unmanned aerial vehicle (UAV), a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home, but is not limited thereto.

[0039] The terminal device can establish a communication connection with an access network device (such as a base station) through random access to perform information interaction on the communication connection and complete subsequent operations, such as calls, resource requests, data transmission, etc. The terminal device first sends a Physical Random Access Channel (PRACH) to the access network device, and a random access preamble is carried in the PRACH. After receiving the PRACH, the access network device can send a Random Access Response (RAR) to the terminal device.

[0040] Further, after receiving the RAR, the terminal device can schedule temporary Physical Uplink Shared Channel (PUSCH) resources for the access network device to send a first PUSCH on the allocated temporary PUSCH resources.

[0041] In the NR CA scenario, in the embodiments of the present application, the first PUSCH scheduled by the terminal device based on the RAR can be sent on the first CC.

[0042] Optionally, the first PUSCH can be a PUSCH including a Hybrid Automatic Repeat reQuest (HARQ)-ACK message.

[0043] Optionally, the first PUSCH may be a PUSCH including Channel State Information (CSI).

[0044] S102, in response to the original transmission power of the first channel to be transmitted and the original transmission power of the first PUSCH satisfying a preset condition, reduce the original transmission power of the first channel.

[0045] In the embodiments of the present application, when the terminal device transmits the first PUSCH, there may be a situation where additional uplink signals need to be transmitted on other CCs. For example, when the terminal device transmits the first PUSCH through the first CC, it also needs to transmit the first channel on the second CC.

[0046] Optionally, the first channel may be a second PUSCH carrying uplink control information UCI; or, optionally, the first channel may be a Physical Uplink Control Channel (PUCCH); or, optionally, the first channel may include a second PUSCH and a PUCCH.

[0047] In the case where the terminal device needs to transmit the first PUSCH and the first channel simultaneously, it is necessary to consider whether the maximum transmission power of the terminal device meets the requirements for simultaneously transmitting the first PUSCH and the first channel, that is, it is necessary to determine whether the maximum transmission power of the terminal device is greater than the sum of the original transmission powers of the first PUSCH and the first channel, so as to determine whether the original transmission powers of the first PUSCH and the first channel meet the preset conditions.

[0048] In some embodiments, determine the original transmission power of the first PUSCH and the original transmission power of the first channel, and determine the total transmission power required for the terminal device to simultaneously transmit the first PUSCH and the first channel according to the original transmission power of the first PUSCH and the original transmission power of the first channel. Further, compare the total transmission power required by the terminal device with the maximum transmission power of the terminal device.

[0049] If the total transmission power required by the terminal device is less than the maximum transmission power of the terminal device, it means that the first PUSCH and the first channel do not meet the preset conditions, that is, there is no conflict in transmission power between the first PUSCH and the first channel, and they can be transmitted according to their respective original transmission powers. That is, the terminal device can transmit the first PUSCH to the access network device according to the original transmission power of the first PUSCH on the first CC, and transmit the target signal to the access network device according to the original transmission power of the first channel on the second CC.

[0050] In one embodiment of the present disclosure, if the total transmission power required by the terminal device is greater than the maximum transmission power of the terminal device, it is determined that the first PUSCH and the first channel meet the preset conditions, that is, there is a conflict in transmission power between the first PUSCH and the first channel. After determining that there is a transmission power conflict between the first PUSCH and the first channel, in order to ensure the successful random access process of the terminal device, the original transmission power required for the first PUSCH can be allocated, and then the first PUSCH can be transmitted to the access network device at the original transmission power of the first PUSCH. However, since the total transmission power required by the terminal device is greater than the maximum transmission power, in order to be able to transmit the first channel simultaneously, a transmission power lower than the original transmission power can be allocated to the first channel, that is, the original transmission power of the first channel is reduced, and the first channel is transmitted to the access network device at the reduced transmission power.

[0051] That is, the terminal device can transmit the first PUSCH to the access network device through the first CC at the original transmission power of the first PUSCH, and transmit the first channel to the access network device through the second CC at the reduced transmission power of the first channel. Optionally, the terminal device transmits at least one of the second PUSCH and the PUCCH to the access network device through the second CC at the reduced transmission power of the first channel.

[0052] In some embodiments, the original transmission power of the first PUSCH and the original transmission power of the first channel can be configured based on the access network device. Optionally, the original transmission power of the first PUSCH and the original transmission power of the first channel can be agreed upon based on the protocol. Optionally, the maximum transmission power of the terminal device can be stored in the memory of the terminal device and read from the memory.

[0053] In some embodiments, the first PUSCH includes the device information of the terminal device. After receiving the first PUSCH, the access network device parses the first PUSCH and can obtain the device information of the terminal device. Further, it is determined whether to allow the terminal device to access based on the device information.

[0054] In the embodiments of the present application, in the case where there is a transmission power conflict when the first PUSCH and the first channel are transmitted simultaneously, in order to ensure the successful random access process of the terminal device, the terminal device maintains the original transmission power of the first PUSCH and reduces the transmission power of the first channel at the same time. This can not only make the first PUSCH transmitted successfully, but also transmit the first channel simultaneously, and can avoid the loss of the first channel.

[0055] Figure 2 It is a schematic flowchart of a signal transmission method provided by an embodiment of the present disclosure.

[0056] As Figure 2As shown, the signal transmission method is executed by a terminal device, and the method includes the following steps:

[0057] S201, receive a RAR, and schedule a first PUSCH based on the RAR.

[0058] For the optional implementation manner of step S201, reference can be made to Figure 1 the optional implementation manner of step S101 in Figure 1 and other related parts in the embodiments involved, which will not be elaborated here.

[0059] S202, in response to the first channel to be transmitted including a second PUSCH and a PUCCH, determine that the original transmission powers of the first PUSCH, the second PUSCH, and the PUCCH satisfy a preset condition.

[0060] In some embodiments, the first PUCCH is transmitted on a first CC, and the first channel needs to be transmitted on a second CC. It can be understood that the second CC can be a general term for other CCs except the first CC. Optionally, the second PUSCH and the PUCCH can be transmitted on two different second CCs respectively.

[0061] Exemplarily, it can include three CCs, CC1, CC2, and CC3. Among them, CC1 is the first CC, carrying the first PUSCH, and CC2 and CC3 are called the second CCs. Among them, the second PUSCH is carried on CC2, and the PUCCH is carried on CC3.

[0062] In some embodiments, determine the original transmission powers of the first PUSCH, the second PUSCH, and the PUCCH respectively, and determine the total transmission power required by the terminal device based on their respective original transmission powers.

[0063] Further, based on the total transmission power required by the terminal device and the maximum transmission power of the terminal device, determine whether there is a transmission power conflict among the first PUSCH, the second PUSCH, and the PUCCH. For the specific introduction, reference can be made to the description of step S102 in the above embodiments, which will not be elaborated here.

[0064] S203, in response to satisfying the preset condition, determine the power allocation levels of the second PUSCH and the PUCCH.

[0065] In some embodiments, the power allocation levels of the second PUSCH and the PUCCH can be determined based on protocol agreements.

[0066] In some embodiments, the power allocation levels of the second PUSCH and the PUCCH can be determined based on the configuration of the access network device.

[0067] S204. Allocate transmission power for the second PUSCH and the PUCCH according to the power allocation levels of the second PUSCH and the PUCCH.

[0068] In the embodiments of the present application, the higher the power allocation level, the higher the allocated transmission power. That is to say, a higher transmission power is allocated to a signal with a higher priority, while a lower transmission power is allocated to a signal with a lower priority. However, to ensure the successful random access of the terminal device, the transmission powers allocated to the second PUSCH and the PUCCH are both less than their respective original transmission powers, so as to ensure that the first PUSCH can be transmitted at the original transmission power.

[0069] In some embodiments, determine the remaining transmission power of the terminal device according to the maximum transmission power of the terminal device and the original transmission power of the first PUSCH. Further, allocate the remaining transmission power to the second PUSCH and the PUCCH according to the power allocation levels of the second PUSCH and the PUCCH.

[0070] Optionally, compare the power allocation levels of the second PUSCH and the PUCCH to determine the higher and lower levels of the two signals. Allocate a higher transmission power to the signal with a higher level and a lower transmission power to the signal with a lower level, but the sum of the transmission powers allocated to the second PUSCH and the PUCCH is less than or equal to the remaining transmission power.

[0071] S205. Transmit the first PUSCH to the access network device at the original transmission power of the first PUSCH.

[0072] Since the transmission of the first PUSCH scheduled by the RAR is an important link in the random access process, in the embodiments of the present application, allocating the original transmission power to the first PUSCH can ensure sufficient power allocation in the random access process, improve the successful transmission of the first PUSCH, and thus ensure that the terminal device can successfully complete the random access process.

[0073] S205. Transmit the second PUSCH and the PUCCH to the access network device at the transmission powers allocated to the second PUSCH and the PUCCH.

[0074] After completing the allocation of the transmission powers of the second PUSCH and the PUCCH, the second PUSCH and the PUCCH can be transmitted to the access network device based on their respective allocated transmission powers.

[0075] In the embodiments of the present application, in the case where there is a transmission power conflict when the first PUSCH and the first channel are transmitted simultaneously, in order to ensure the successful random access process of the terminal device, the terminal device maintains the original transmission power of the first PUSCH and reduces the transmission power of the first channel at the same time. This can not only enable the successful transmission of the first PUSCH, but also allocate the transmission power according to the power allocation level of the first channel, and can make the first channel with higher priority complete the transmission as much as possible.

[0076] In some embodiments, the terminal device may receive configuration information sent by the access network device, and the configuration information may indicate the power allocation levels of the first PUSCH and the first channel. Optionally, the power allocation level of the first PUSCH is higher than that of the first channel. When allocating the transmission power for the first PUSCH, since the power allocation level of the first PUSCH is the highest, the original transmission power can be allocated to the first PUSCH, and correspondingly, the transmission power of the first channel is reduced to ensure the successful transmission of the first PUSCH and improve the success rate of the terminal device's random access.

[0077] In some embodiments, in the NR CA scenario, when the first PUSCH needs to be transmitted simultaneously with at least one of the second PUSCH and PUCCH carrying UCI on different CCs, the power allocation levels of the above three types of signals can be pre-agreed based on the protocol, where the power allocation level of the first PUSCH is higher than that of the first channel. When allocating the transmission power for the first PUSCH, since the power allocation level of the first PUSCH is the highest, the original transmission power can be allocated to the first PUSCH to ensure the successful transmission of the first PUSCH and improve the success rate of the terminal device's random access.

[0078] Figure 3 It is a schematic flowchart of a signal transmission method provided by the embodiments of the present disclosure.

[0079] As Figure 3 shown, this signal transmission method is executed by the access network device, and the method includes the following steps:

[0080] S301, send a RAR, where the RAR is used to instruct the terminal device to schedule the first PUSCH.

[0081] In the embodiments of the present application, the first PUSCH is carried on the first CC. Optionally, the first PUSCH may be a PUSCH including HARQ-ACK. Optionally, the first PUSCH may be a PUSCH including CSI.

[0082] In some embodiments, an access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation Node B (gNB), a Node B (NB), a home Node B (HNB), a home evolved NodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

[0083] The terminal device can establish a communication connection with the access network device through random access to perform information interaction on the communication connection and complete subsequent operations, such as calls, resource requests, data transmission, etc. The terminal device first sends a PRACH to the access network device, and a random access preamble is carried in the PRACH. After receiving the PRACH, the access network device can send an RAR to the terminal device.

[0084] S302: Receive a first PUSCH transmitted by the terminal device at the original transmission power of the first PUSCH.

[0085] In the embodiments of the present application, when the terminal device sends a first PUSCH, there may be a situation where additional uplink signals need to be sent on other CCs. For example, when the terminal device sends a first PUSCH through a first CC, it also needs to send a first channel on a second CC.

[0086] Optionally, the first channel may be a second PUSCH carrying uplink control information UCI; or, optionally, the first channel may be a PUCCH; or, optionally, the first channel may include a second PUSCH and a PUCCH.

[0087] When the terminal device needs to send the first PUSCH and the first channel simultaneously, it is necessary to consider whether the maximum transmission power of the terminal device meets the requirement of simultaneously sending the first PUSCH and the first channel, that is, it is necessary to determine whether the maximum transmission power of the terminal device is greater than the sum of the transmission powers of the first PUSCH and the first channel.

[0088] In the embodiments of the present application, when the terminal device determines that there is a transmission power conflict between the first PUSCH and the first channel, the first PUSCH is sent to the access network device at the original transmission power of the first PUSCH, that is, the terminal device can send the first PUSCH to the access network device through the first CC at the original transmission power of the first PUSCH. Correspondingly, the access network device can receive the first PUSCH sent by the terminal device at the original transmission power of the first PUSCH on the first CC.

[0089] In some embodiments, the first PUSCH includes the device information of the terminal device. After receiving the first PUSCH, the access network device can parse the first PUSCH to obtain the device information of the terminal device. Further, it is determined whether to allow the terminal device to access based on the device information.

[0090] S303, receive the first channel sent by the terminal device at the reduced transmission power of the first channel.

[0091] In the embodiments of the present application, the first channel is an uplink signal carried on the second CC.

[0092] After determining that there is a transmission power conflict between the first PUSCH and the first channel, in order to ensure the successful random access process of the terminal device, the original transmission power of the first PUSCH can be maintained. However, since the total transmission power required by the terminal device is greater than the maximum transmission power, in order to be able to send the first channel simultaneously, the original transmission power of the first channel can be reduced. The terminal device sends the first channel to the access network device through the second CC at the reduced transmission power of the first channel. Correspondingly, the access network device can receive the first channel sent by the terminal device at the reduced transmission power of the first channel on the second CC.

[0093] Optionally, the terminal device sends at least one of the second PUSCH and the PUCCH to the access network device through the second CC at the reduced transmission power of the first channel. Correspondingly, the access network device can receive at least one of the second PUSCH and the PUCCH sent by the terminal device at the reduced transmission power of the first channel on the second CC.

[0094] In the embodiments of the present application, when there is a transmission power conflict in the simultaneous transmission of the first PUSCH and the first channel, in order to ensure the successful random access process of the terminal device, the terminal device maintains the original transmission power of the first PUSCH and reduces the transmission power of the first channel at the same time. This can not only enable the successful transmission of the first PUSCH, but also allow the simultaneous transmission of the first channel, avoiding the loss of the first channel.

[0095] In some embodiments, the access network device may send configuration information to the terminal device. Optionally, the terminal device may receive the configuration information sent by the access network device. The configuration information may indicate the power allocation levels of the first PUSCH and the first channel, where the power allocation level of the first PUSCH is higher than that of the first channel. When allocating transmission power for the first PUSCH, since the power allocation level of the first PUSCH is the highest, the original transmission power may be allocated to the first PUSCH to ensure the successful transmission of the first PUSCH and improve the success rate of the terminal device's random access.

[0096] Figure 4 It is an interaction schematic diagram of a signal transmission method provided by an embodiment of the present disclosure.

[0097] As Figure 4 shown, the signal transmission method includes the following steps:

[0098] S401, the terminal device sends a PRACH to the base station.

[0099] S402, the base station sends an RAR to the terminal device.

[0100] S403, schedule the first PUSCH based on the RAR.

[0101] S404, determine whether there is a transmission power conflict between the first PUSCH and the first channel to be transmitted.

[0102] S405, in response to the existence of a transmission power conflict, send the first PUSCH to the base station with the original transmission power of the first PUSCH.

[0103] S406, reduce the original transmission power of the first channel and send the first channel to the base station with the reduced transmission power.

[0104] S407, parse the first PUSCH to obtain the device information of the terminal device, and determine whether to allow the terminal device to access according to the device information.

[0105] In some embodiments, steps S404 and S405 may be executed simultaneously or the execution order may be exchanged, and the present application does not limit this.

[0106] In the embodiments of the present application, when there is a transmission power conflict in the simultaneous transmission of the first PUSCH and the first channel, in order to ensure the successful random access process of the terminal device, the terminal device maintains the original transmission power of the first PUSCH and reduces the transmission power of the first channel at the same time. This can not only enable the successful transmission of the first PUSCH, but also allow the simultaneous transmission of the first channel, avoiding the loss of the first channel.

[0107] In some embodiments, the terms "acquire", "obtain", "get", "receive", "transmit", "two-way transmission", "send and / or receive" can be replaced with each other, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, self-processing and self-realization, etc.

[0108] In some embodiments, the terms "send", "transmit", "report", "downlink", "transmit", "two-way transmission", "send and / or receive", etc. can be replaced with each other.

[0109] In some embodiments, the terms "component carrier", "cell", "frequency carrier", "carrier frequency", etc. can be replaced with each other.

[0110] The embodiments of the present disclosure also propose a device for implementing any of the above methods. For example, a device is proposed. The above device includes units or modules for implementing each step executed by the terminal in any of the above methods. Again, another device is proposed, including units or modules for implementing each step executed by the network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0111] It should be understood that the division of each unit or module in the above device is only a logical function division. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or the functions of each unit or module of the above device.

[0112] Figure 5 It is a block diagram of the structure of a communication device shown according to an exemplary embodiment.

[0113] As Figure 5 shown, the communication device 500 includes at least one of a transceiver module 501 and a processing module 502.

[0114] In some embodiments, the communication device 500 is a terminal device and can execute the steps executed by the terminal device in any of the above methods as follows:

[0115] A transceiver module 501, configured to receive a RAR, transmit a first PUSCH with an original transmission power, and transmit a first channel with a transmission power reduced from the transmission power to be transmitted, where the first PUSHC and the first channel are used for carrier aggregation.

[0116] A processing module 502, configured to schedule the first PUSCH based on the RAR, and determine whether the original transmission powers of the first channel and the first PUSCH satisfy a preset condition.

[0117] In some embodiments, the processing module 502 is further configured to:

[0118] Determine a total transmission power required by the terminal device according to the original transmission power of the first PUSCH and the original transmission power of the first channel, and in response to the total transmission power being greater than the maximum transmission power of the terminal device, determine that the original transmission powers of the first PUSCH and the first channel satisfy the preset condition.

[0119] In some embodiments, the first channel includes at least one of a second PUSCH carrying UCI and a PUCCH.

[0120] In some embodiments, the first channel includes the second PUSCH and the PUCCH, and the processing module 502 is further configured to:

[0121] Determine power allocation levels of the second PUSCH and the PUCCH; allocate transmission powers to the second PUSCH and the PUCCH according to the power allocation levels of the second PUSCH and the PUCCH, where the higher the power allocation level, the higher the allocated transmission power, and the transmission powers allocated to the second PUSCH and the PUCCH are both less than their respective original transmission powers.

[0122] In some embodiments, the transceiver module 501 is further configured to transmit a RACH signal before receiving the RAR.

[0123] In some embodiments, the transceiver module 501 is further configured to receive configuration information, and configure power allocation levels of the first PUSCH and the first channel according to the configuration information, where the power allocation level of the first PUSCH is higher than the power allocation level of the first channel.

[0124] In some embodiments, the first PUSCH includes device information of the terminal device, and the device information is used to determine whether to allow the terminal device to access.

[0125] In some embodiments, the communication device 500 is an access network device, and may perform the steps performed by the access network device in any of the above methods:

[0126] A transceiver module 501, configured to send a RAR, where the RAR is used to instruct a terminal device to schedule a first PUSCH, and receive the first PUSCH transmitted at an original transmission power, and receive the first channel transmitted at a transmission power reduced after the first channel to be transmitted, where the first PUSHC and the first channel are used for carrier aggregation.

[0127] In some embodiments, the first channel includes at least one of a second PUSCH and a PUCCH carrying uplink control information UCI.

[0128] In some embodiments, the transceiver module 501 is further configured to send configuration information, where the configuration information is used to instruct the terminal device to configure a power allocation level of the first PUSCH and the first channel, where a power allocation level of the first PUSCH is higher than a power allocation level of the first channel.

[0129] In some embodiments, the transceiver module 501 is further configured to receive a PRACH before sending the RAR.

[0130] In some embodiments, the processing module 502 is further configured to parse the first PUSCH to obtain device information of the terminal device; and determine whether to allow the terminal device to access according to the device information.

[0131] In some embodiments, the transceiver module may include a sending module and / or a receiving module, and the sending module and the receiving module may be separate or integrated together. Optionally, the transceiver module may be replaced with a transceiver.

[0132] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the above multiple sub-modules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module may be replaced with a processor.

[0133] In the embodiments of the present application, in a case where there is a transmission power conflict when the first PUSCH and the first channel are simultaneously transmitted, in order to ensure that the random access process of the terminal device can succeed, the terminal device maintains the original transmission power of the first PUSCH, and at the same time reduces the transmission power of the first channel, which can not only enable the first PUSCH to be successfully transmitted, but also enable the first channel to be transmitted simultaneously, and can avoid signal loss.

[0134] Figure 6It is a schematic structural diagram of a communication device 600 proposed by an embodiment of the present disclosure. The communication device 600 can be a network device (such as an access network device, a core network device, etc.), or a terminal device (such as a user equipment, etc.), or a chip, a chip system, or a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, or a processor, etc. that supports the terminal to implement any of the above methods. The communication device 600 can be used to implement the methods described in the above method embodiments, and specific reference can be made to the descriptions in the above method embodiments.

[0135] As Figure 6 shown, the communication device 600 includes one or more processors 601. The processor 601 can be a general-purpose processor or a special-purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control a communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 600 is used to execute any of the above methods. Optionally, one or more processors 601 are used to call instructions to cause the communication device 600 to execute any of the above methods.

[0136] In some embodiments, the communication device 600 further includes one or more transceivers 602. When the communication device 600 includes one or more transceivers 602, the transceivers 602 execute at least one of the communication steps such as sending and / or receiving in the above method, and the processor 601 executes at least one of the other steps. In an alternative embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and the transmitter may be separate or integrated together. Optionally, terms such as transceiver, transceiver unit, transceiver machine, transceiver circuit, interface circuit, interface, etc. can be replaced with each other, terms such as transmitter, transmitter unit, transmitter machine, transmitter circuit, etc. can be replaced with each other, and terms such as receiver, receiver unit, receiver machine, receiver circuit, etc. can be replaced with each other.

[0137] In some embodiments, the communication device 600 further includes one or more memories 603 for storing data. Optionally, all or part of the memories 603 may also be outside the communication device 600. In an alternative embodiment, the communication device 600 may include one or more interface circuits 604. Optionally, the interface circuit 604 is connected to the memory 602, and the interface circuit 604 can be used to receive data from the memory 602 or other devices, and can be used to send data to the memory 602 or other devices. For example, the interface circuit 604 can read the data stored in the memory 602 and send the data to the processor 601.

[0138] The communication device 600 described in the above embodiments may be a network device or a terminal. However, the scope of the communication device 600 described in the present disclosure is not limited thereto, and the structure of the communication device 600 may not be subject to Figure 6 restrictions. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit (IC), or chip, or chip system or subsystem; (2) a set of one or more ICs. Optionally, the above IC set may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0139] Figure 7 FIG. is a schematic structural diagram of a chip system 700 proposed by an embodiment of the present disclosure. For the case where the communication device 600 may be a chip or a chip system, reference may be made to Figure 7 the schematic structural diagram of the chip system 700 shown, but not limited thereto.

[0140] The chip system 700 includes one or more processors 701. The chip system 700 is used to execute any of the above methods.

[0141] In some embodiments, the chip system 700 further includes one or more interface circuits 702. Optionally, terms such as interface circuit, interface, and transceiver pin can be replaced with each other. In some embodiments, the chip system 700 further includes one or more memories 703 for storing data. Optionally, all or part of the memories 703 may be outside the chip system 700. Optionally, the interface circuit 702 is connected to the memory 703. The interface circuit 702 can be used to receive data from the memory 703 or other devices, and the interface circuit 702 can be used to send data to the memory 703 or other devices. For example, the interface circuit 702 can read the data stored in the memory 703 and send the data to the processor 701.

[0142] In some embodiments, the interface circuit 702 executes at least one of the communication steps such as sending and / or receiving in the above method. The interface circuit 702 executing the communication steps such as sending and / or receiving in the above method means, for example, that the interface circuit 702 executes data interaction between the processor 701, the chip system 700, the memory 703, or the transceiver device. In some embodiments, the processor 701 executes at least one of the other steps.

[0143] The various modules and / or devices described in the embodiments such as virtual devices, physical devices, chips, etc. can be arbitrarily combined or separated according to the circumstances. Optionally, some or all of the steps can also be executed by multiple modules and / or devices in cooperation, which is not limited herein.

[0144] The present disclosure also provides a storage medium, on which instructions are stored. When the instructions run on the communication device 600, the communication device 600 is caused to execute any of the above methods. Optionally, the above storage medium is an electronic storage medium. Optionally, the above storage medium is a computer-readable storage medium, but not limited thereto, and it can also be other device-readable storage mediums. Optionally, the above storage medium can be a non-transitory storage medium, but not limited thereto, and it can also be a transitory storage medium.

[0145] The present disclosure also provides a program product. When the program product is executed by the communication device 600, the communication device 600 is caused to execute any of the above methods. Optionally, the above program product is a computer program product.

[0146] The present disclosure also provides a computer program. When it runs on a computer, the computer is caused to execute any of the above methods. Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. For each specific application, those skilled in the art can use various methods to implement the described function, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0147] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0148] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A signal transmission method, characterized in that, The method includes: Receiving a Random Access Response (RAR) and scheduling a first Physical Uplink Shared Channel (PUSCH) based on the RAR; In response to the original transmission power of a first channel to be transmitted and the original transmission power of the first PUSCH satisfying a preset condition, reducing the original transmission power of the first channel, where the first PUSCH and the first channel are used for carrier aggregation.

2. The method according to claim 1, characterized in that, The method further includes: Determining the total transmission power required by the terminal device according to the original transmission power of the first PUSCH and the original transmission power of the first channel; In response to the total transmission power being greater than the maximum transmission power of the terminal device, determining that the original transmission power of the first PUSCH and the original transmission power of the first channel satisfy a preset condition.

3. The method according to claim 1, characterized in that, The first channel includes at least one of a second PUSCH carrying uplink control information (UCI) and a Physical Uplink Control Channel (PUCCH).

4. The method according to claim 3, characterized in that, The method further includes: When the first channel includes the second PUSCH and the PUCCH, determining the power allocation levels of the second PUSCH and the PUCCH; Allocating transmission power to the second PUSCH and the PUCCH according to the power allocation levels of the second PUSCH and the PUCCH, where the higher the power allocation level, the higher the allocated transmission power, and the transmission powers allocated to the second PUSCH and the PUCCH are both less than their respective original transmission powers.

5. The method according to any one of claims 1-4, characterized in that, The method further includes: Receiving configuration information and configuring the power allocation levels of the first PUSCH and the first channel according to the configuration information, where the power allocation level of the first PUSCH is higher than the power allocation level of the first channel.

6. A signal transmission method, characterized in that, The method includes: Sending an RAR, where the RAR is used to instruct the terminal device to schedule a first PUSCH; Receiving the first PUSCH transmitted by the terminal device at the original transmission power; Receiving the first channel transmitted by the terminal device at the reduced transmission power, where the first PUSCH and the first channel are used for carrier aggregation.

7. The method according to claim 6, characterized in that, The first channel includes at least one of a second PUSCH carrying uplink control information (UCI) and a Physical Uplink Control Channel (PUCCH).

8. The method according to claim 6, characterized in that, The method further includes: Sending configuration information, where the configuration information is used to instruct the terminal device to configure the power allocation levels of the first PUSCH and the first channel, where the power allocation level of the first PUSCH is higher than the power allocation level of the first channel.

9. A terminal device, characterized in that, Includes: A transceiver module, configured to receive a Random Access Response (RAR) and schedule a first Physical Uplink Shared Channel (PUSCH) based on the RAR; A processing module, configured to reduce the original transmission power of the first channel in response to the original transmission power of a first channel to be transmitted and the original transmission power of the first PUSCH satisfying a preset condition, where the first PUSCH and the first channel are used for carrier aggregation.

10. An access network device, characterized in that, Includes: A transceiver module, configured to transmit a RAR, where the RAR is used to instruct a terminal device to schedule a first PUSCH, and to receive the first PUSCH transmitted at an original transmission power, and to receive the first channel transmitted at a transmission power reduced by the first channel, where the first PUSHC and the first channel are used for carrier aggregation.

11. A communication device, characterized in that, Comprising: A memory, a processor, and a computer program stored on the memory and executable on the processor, where when the processor executes the program, a signal transmission method as claimed in any one of claims 1-5 or claims 6-8 is implemented.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, a signal transmission method as claimed in any one of claims 1-5 or claims 6-8 is implemented.

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