A data transmission method and device

Abstract

The application discloses a data transmission method and device, and relates to the technical field of wireless communication. The method comprises the following steps: determining that the time resources of a basic physical uplink control channel corresponding to characteristic uplink control information and a reference channel overlap, the reference channel carries first information, and the transmission priority of the first information is lower than that of the characteristic uplink control information; determining that one of the basic physical uplink control channel and the reference channel is a temporary channel; determining the channel carrying the characteristic uplink control information according to the comparison result of the transmission power reduction amount of the temporary channel and a first threshold; when the reduction amount exceeds the first threshold, the characteristic uplink control information is transmitted on the basic physical uplink control channel and the first information is discarded; and when the reduction amount does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel. The application can avoid the performance of high-priority uplink control information being impaired due to power scaling, and improve the system transmission efficiency.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a data transmission method and device. Background Technology

[0002] In the NR system, uplink control information (UCI) is used to support feedback on downlink data transmission and request uplink resources. It mainly includes: HARQ-ACK: used to provide feedback on the PDSCH reception result, including ACK or NACK, which is crucial for ensuring data transmission reliability; SR: when the UE has new uplink data to send, it uses SR to request uplink transmission resources; CSI: channel state information measured by the UE, such as CQI, PMI, RI, etc., to help network equipment determine appropriate transmission schemes and achieve link adaptation; LRR: Link Recovery Request, when the UE detects a deterioration in the quality of the current radio link (especially the beam used for the control channel) and a possible beam failure, it actively requests the network to restore the link or beam by sending LRR; UEIRI: UE Initiated Report Indication, used by the UE to request more detailed uplink transmission key information (such as beam quality, specific events) from the network, thereby optimizing system performance and reducing signaling overhead and power consumption.

[0003] This information can be transmitted individually or in combination. In actual transmission, it is carried on the Physical Uplink Control Channel (PUCCH). When conflicts occur or transmission capacity is exceeded, the system prioritizes the transmission of the most important information.

[0004] The NR system also defines multiplexing rules for handling overlapping PUCCH and / or PUSCH. When a UCI type conflicts with PUCCH and / or PUSCH within the same time unit, both the UE and the network must comprehensively consider various conditions and priorities to determine the final PUCCH / PUSCH to be transmitted. First, the UE must report whether it supports simultaneous transmission of PUCCH and PUSCH. If not, the UCI is transferred to PUSCH for transmission to avoid dropping.

[0005] According to existing technology, when there is a time resource conflict in PUCCH for various UCI information, it is handled according to priority, ensuring that important information is transmitted first and as much UCI information as possible is transmitted. Furthermore, when there is a time resource conflict between PUCCH and PUSCH, UCI can be transferred to PUSCH for transmission, ensuring that UCI and uplink shared channel data UL-SCH can be transmitted simultaneously.

[0006] However, when a UE transmits a PUSCH carrying a UCI, if the total uplink channel power of the UE within the time unit containing the PUSCH exceeds the UE's maximum transmit power, the UE's actual transmit power will be allocated among the uplink channels according to priority. Although the power allocation priority for PUSCHs carrying UCIs is high, the transmit power may still be scaled, affecting the performance of UCI transmission. If the current UCI is of a generally high priority type, it will severely impact system performance and efficiency.

[0007] This application addresses the impact of PUSCH transmit power scaling on UCI receive performance during PUCCH / PUSCH transmission. Summary of the Invention

[0008] This application proposes a data transmission method and device to solve the problem of the impact of PUSCH transmit power scaling on UCI reception performance during PUCCH / PUSCH transmission, and is particularly suitable for uplink control information transmission scenarios in mobile communication systems.

[0009] In a first aspect, this application proposes a data transmission method comprising the following steps: The time resources of the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the feature uplink control information. One of the basic physical uplink control channel and the reference channel is determined to be a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information; Based on the comparison between the reduction in the transmission power of the temporary channel and a first threshold, the channel carrying the characteristic uplink control information is determined: when the reduction exceeds the first threshold, the characteristic uplink control information is transmitted on the basic physical uplink control channel, and the first information is discarded; when the reduction does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel.

[0010] The method described in any embodiment of the first aspect of this application, used in a terminal-side device, includes the following steps: The time resource overlap between the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information is determined. One of the basic physical uplink control channel and the reference channel is designated as a temporary channel; When the reduction in the transmission power of the temporary channel exceeds a first threshold, the first information is discarded, and the characteristic uplink control information is transmitted on the basic physical uplink control channel; when the reduction in the transmission power of the temporary channel does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel.

[0011] The method described in any embodiment of the first aspect of this application, used in a network-side device, includes the following steps: The time resources of the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information of the terminal-side device are determined to overlap. One of the basic physical uplink control channel and the reference channel is designated as a temporary channel; The feature uplink control information and the first information are detected in the following manner: the feature uplink control information is detected in the basic physical uplink control channel, and the detection of the first information is abandoned; or, the feature uplink control information and the first information are detected in the temporary channel.

[0012] Preferably, the uplink control information includes at least one of the following: hybrid automatic repeat request acknowledgment, scheduling request, link recovery request, user equipment initiated report indication, and channel state information.

[0013] Preferably, the first threshold is 0, or the first threshold is a first configuration parameter configured by the network-side device for the terminal-side device.

[0014] Preferably, second configuration information is obtained, which is used to indicate support for determining the transmission of the characteristic uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel.

[0015] Preferably, identification information is sent, which is used to distinguish between the case where the first information is discarded and the characteristic uplink control information is sent on the basic physical uplink control channel, and the case where the characteristic uplink control information and the first information are sent on the temporary channel.

[0016] Preferably, the first information includes at least one of the following: channel state information, uplink shared channel data, and / or, the priority order of the first information and the feature uplink control information is determined according to preset information.

[0017] Secondly, this application also proposes a network-side device for implementing the method described in any one of the first aspects of this application, wherein at least one module in the network-side device is used for at least one of the following functions: The time resources of the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information of the terminal-side device are determined to overlap. One of the basic physical uplink control channel and the reference channel is designated as a temporary channel; The feature uplink control information and the first information are detected in the following manner: the feature uplink control information is detected in the basic physical uplink control channel, and the detection of the first information is abandoned; or, the feature uplink control information and the first information are detected in the temporary channel. Send the first configuration parameter, which is used to indicate a first threshold. The first threshold is used by the terminal-side device to determine whether the reduction in the transmission power of the temporary channel exceeds the first threshold. Send second configuration information, which is used to instruct the supporting terminal-side device to determine the transmission of the feature uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel; The identification information is used to distinguish between the case where the terminal device discards the first information and sends the feature uplink control information on the basic physical uplink control channel, and the case where the terminal device sends the feature uplink control information and the first information on the temporary channel. The first information is determined to include at least one of the following: channel state information, uplink shared channel data; Determine and send preset information, which is used to determine the priority order of the first information and the feature uplink control information.

[0018] Thirdly, this application also proposes a terminal-side device for implementing the method described in any one of the first aspects of this application, wherein at least one module in the terminal-side device is used for at least one of the following functions: The time resource overlap between the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information is determined. One of the basic physical uplink control channel and the reference channel is designated as a temporary channel; When the reduction in the transmission power of the temporary channel exceeds a first threshold, the first information is discarded, and the characteristic uplink control information is transmitted on the basic physical uplink control channel; when the reduction in the transmission power of the temporary channel does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel. Obtain second configuration information, which is used to indicate support for determining the transmission of the characteristic uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel; Send identification information, which is used to distinguish between the case of discarding the first information and sending the feature uplink control information on the basic physical uplink control channel, and the case of sending the feature uplink control information and the first information on the temporary channel; The first information is determined to include at least one of the following: channel state information, uplink shared channel data; Obtain preset information, which is used to indicate the priority order of the first information and the feature uplink control information.

[0019] Fourthly, this application also proposes a communication device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any embodiment of the first aspect of this application.

[0020] Fifthly, this application also proposes a computer-readable medium on which a computer program is stored, which, when executed by a processor, implements the steps of the method described in any embodiment of the first aspect of this application.

[0021] Sixthly, this application also proposes a mobile communication system comprising at least one network-side device as described in any embodiment of this application and / or at least one terminal-side device as described in any embodiment of this application.

[0022] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects: Based on existing technologies that determine the PUCCIH channel carrying multiple UCI type information within the same time unit, and ensure the transmission of UCI / UL-SCH types with important priorities when PUCCIH and PUSCH times overlap, this application further determines the channel type carrying the characteristic UCI by judging whether the transmission power of important priority information is severely reduced. This can ensure that the transmission performance of higher priority UCI is not affected by power reduction and improve the efficiency of system data transmission. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a flowchart illustrating an embodiment of the method of this application; Figure 2 This is a flowchart illustrating an embodiment of the method of this application used in a network-side device; Figure 3This is a flowchart illustrating an embodiment of the method of this application used in a terminal-side device; Figure 4 This is a schematic diagram of an embodiment of a network-side device; Figure 5 This is a schematic diagram of an embodiment of the terminal-side device; Figure 6 This is a schematic diagram of the structure of a network-side device according to another embodiment of the present invention; Figure 7 This is a block diagram of a terminal-side device according to another embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0026] Figure 1 This is a flowchart illustrating an embodiment of the method of this application.

[0027] This application proposes a data transmission method, comprising the following steps 110-130.

[0028] Step 110: Determine the time resource overlap between the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information.

[0029] Within the target time unit, the basic PUCCH and the reference channel (which can be PUCCH or PUSCH) corresponding to the feature UCI have overlapping areas in the time domain, meaning that they need to occupy uplink transmission resources within the same time unit, indicating that their transmission timings conflict.

[0030] In this application, the feature UCI (Uplink Control Information) is at least one of HARQ-ACK, SR, LRR, UEIRI, and CSI. Specifically, the feature uplink control information may include at least one of Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK), Scheduling Request (SR), Link Recovery Request (LRR), User Equipment Initiated Report Indication (UEIRI), and Channel State Information (CSI).

[0031] Preferably, the first information includes at least one of the following: channel state information and uplink shared channel data.

[0032] The reference channel is a PUCCH or PUSCH configured or scheduled for transmitting UCIs of types other than the characteristic UCI. That is, the reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, which has a lower transmission priority than the characteristic uplink control information.

[0033] Optionally, the priority order of the first information and the feature uplink control information can be determined according to preset information.

[0034] It should be noted that the first information can be, but is not limited to, Channel State Information (CSI) and Uplink Shared Channel Data (UL-SCH). The first information may also include other uplink information with lower priority than the characteristic UCI, such as non-critical control information or low-priority measurement reports. Those skilled in the art should understand that as long as the first information has a lower priority than the characteristic UCI and can be discarded under power constraints to ensure the transmission of the characteristic UCI, it falls within the scope of protection of this application.

[0035] The basic PUCCH and the reference channel have overlapping time resources, both located within the target time unit. This overlap means they both require uplink transmission resources within the same time unit, potentially leading to conflicts.

[0036] Step 120: Determine one of the basic physical uplink control channel and the reference channel as a temporary channel, wherein the temporary channel corresponds to the characteristic uplink control information and the first information.

[0037] Section 9.2 of 3GPP TS38.213 "NR; Physical layer procedures for control" contains multiplexing strategy rules for UCIs. The purpose is to determine the final PUCCH channel when multiple UCI types need to be transmitted on the same uplink channel resource, or when their transmission timings conflict. If the characteristic UCI is one of HARQ-ACK, SR, LRR, UEIRI, or CSI, this section can be used to determine a temporary channel, corresponding to the transmission of at least one of the characteristic UCI and the first information in the reference channel.

[0038] Specifically, the methods for determining temporary channels may include the following examples: Example 1: If the feature UCI is HARQ-ACK and the other UCIs are SR or UEIRI, if the resource for HARQ-ACK is the basic PUCCH, the UE will attempt to merge them into a single PUCCH resource for transmission, which is the temporary channel.

[0039] Example 2: If the characteristic UCI is HARQ-ACK and the other UCI is CSI, and if the UE is configured to allow simultaneous transmission of HARQ-ACK and CSI, the UE can combine HARQ-ACK and CSI into a single PUCCH (typically format 2 / 3 / 4) for transmission. This PUCCH format 2 / 3 / 4 channel is a temporary channel.

[0040] Example 3: If the feature UCI is SR (without HARQ-ACK) and the other UCI is CSI, the SR bit will be prepended to the front of the CSI information, and the temporary channel is the configuration channel for that CSI.

[0041] Example 4: If the characteristic UCI is LRR or UEIRI and the other UCI is CSI, the two can be merged into a single PUCCH resource for transmission according to similar rules. This PUCCH is a temporary channel.

[0042] It should be noted that the temporary channel is not necessarily actually used to transmit at least one of the characteristic UCI and the first information of the reference channel. After the UE determines the channel carrying the characteristic UCI based on the transmission power reduction of the temporary channel in subsequent steps, the temporary channel may be discarded.

[0043] Step 130: Determine the channel carrying the characteristic uplink control information based on the comparison result between the reduction in the transmission power of the temporary channel and the first threshold.

[0044] When a UE needs to transmit multiple uplink channels simultaneously, or when uplink carrier aggregation is configured, the total required transmit power for all channels may exceed the UE's maximum transmit power. In this case, the UE must reduce power according to priority rules. First, the power requirements of high-priority channels are guaranteed. Then, the remaining power is allocated to low-priority channels. If the power is insufficient, low-priority channels need to have their power reduced, or even be completely dropped. Section 7.5 of 3GPP TS38.213 "NR; Physicallayer procedures for control" defines a strict priority order (e.g., PRACH > PUCCH / PUSCH with HARQ-ACK > PUCCH with CSI > PUSCH without UCI > SRS).

[0045] In this application, the temporary channel is one of the basic PUCCH and the reference channel. Depending on the amount of power reduction in the temporary channel, the UE transmits different features (UCI) and first information in different states.

[0046] Specifically, when the reduction exceeds the first threshold, the feature uplink control information is transmitted on the basic physical uplink control channel, and the first information is discarded; when the reduction does not exceed the first threshold, the feature uplink control information and the first information are transmitted on the temporary channel.

[0047] If the temporary channel is the basic PUCCH, and the reduction in transmission power of the temporary channel exceeds a first threshold, the first information is discarded, and the characteristic UCI is transmitted on the basic PUCCH. In this case, the characteristic UCI has a higher priority than the first information. For example, the characteristic UCI is HARQ-ACK, and the first information is CSI. The basic PUCCH is the channel corresponding to HARQ-ACK, and the reference channel is the channel corresponding to CSI. Since simultaneously transmitting HARQ-ACK and CSI on the basic PUCCH consumes more power from the UE, resulting in excessive power reduction and affecting the transmission performance of HARQ-ACK, discarding CSI and transmitting only the characteristic UCI on the basic PUCCH can ensure the transmission performance of the higher-priority HARQ-ACK as much as possible, thus improving system efficiency.

[0048] If the temporary channel is the reference channel, and the reduction in transmission power of the temporary channel exceeds a first threshold, the first information is discarded, and the characteristic UCI is transmitted on the basic PUCCH. In this case, the characteristic UCI has a higher priority than the first information. For example, the characteristic UCI is SR, and the first information is CSI. The basic PUCCH is the channel corresponding to SR, and the reference channel is the channel corresponding to CSI. Transmitting SR and CSI simultaneously on the reference channel consumes more power from the UE, resulting in excessive power reduction and affecting the transmission performance of SR. Discarding CSI and transmitting only the characteristic UCI on the basic PUCCH can ensure the transmission performance of the higher-priority SR as much as possible, improving system efficiency.

[0049] For example, the characteristic UCI is HARQ-ACK, and the first information is UL-SCH. The basic PUCCH is the channel corresponding to HARQ-ACK, and the reference channel is the PUSCH corresponding to UL-SCH. Simultaneously transmitting HARQ-ACK and UL-SCH on the reference channel consumes more power from the UE, resulting in excessive power reduction and impacting the transmission performance of HARQ-ACK. Discarding UL-SCH and only transmitting HARQ-ACK on the basic PUCCH can better ensure the transmission performance of the higher-priority HARQ-ACK.

[0050] In mobile communication systems, HARQ-ACK information is more important than Channel State Information (CSI). This is because HARQ-ACK is related to the reliability and latency of data transmission. HARQ-ACK is the most basic feedback mechanism at the physical layer: ACK indicates that data has been successfully received, and the network device can continue to send new data; NACK indicates that the data has been corrupted, and the network device must immediately arrange retransmission to avoid the huge delays caused by retransmissions at higher layers. If HARQ-ACK information is lost or corrupted, it will directly lead to a system deadlock (the network device hangs because it cannot receive feedback) or cause the system to trigger unnecessary retransmissions, severely impacting the user experience. The role of CSI is to assist the base station in optimizing future scheduling, such as selecting appropriate modulation and coding schemes (MCS) and precoding matrices. Its loss will only lead to performance degradation and will not immediately threaten the correct delivery of data packets.

[0051] Therefore, if the UCI does not include HARQ-ACK and / or SR, even if the first PUSCH is transmitted using the first power, although the transmission performance of CSI is affected, the impact on the system's data transmission performance is not significant. However, if the UCI includes at least one of HARQ-ACK and SR, the transmission of the UCI in the first PUSCH may have a significant impact on data transmission. In this application, when the UCI includes at least one of HARQ-ACK or SR, the UL-SCH in the first PUSCH is omitted.

[0052] Optionally, the first threshold is 0, or the first threshold is a first configuration parameter configured by the network-side device for the terminal-side device.

[0053] Optionally, prior to the above steps, the UE obtains second configuration information, which is used to indicate support for determining the transmission of the characteristic uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel.

[0054] Although network devices can configure power control parameters, in order to meet radio frequency specifications, the UE must reduce its power from the theoretical maximum power when using different modulation schemes, different RB positions, or when power needs to be reduced due to heat generation. This can be achieved through methods such as MPR, A-MPR, and P-MPR. The UE's maximum power is not a fixed value, and network devices cannot accurately know the UE's actual upper limit of transmit power capability at any given moment.

[0055] Therefore, network devices cannot promptly obtain information about the reduction in transmit power of temporary channels. By sending second configuration information, the network device allows the UE to use the two decision methods described above. This implies that the network device anticipates different decision outcomes and needs to detect the UE's uplink channel using different methods to obtain the transmission performance of the UCI with higher priority, thus ensuring system efficiency.

[0056] Optionally, the method further includes sending identification information, which is used to distinguish between the case of discarding the first information and sending the characteristic uplink control information on the basic physical uplink control channel, and the case of sending the characteristic uplink control information and the first information on the temporary channel.

[0057] If the UE sends identification information to distinguish between the two situations, it will facilitate rapid and effective detection by network devices.

[0058] Figure 2 This is a flowchart illustrating an embodiment of the method of this application used in a network-side device.

[0059] The method described in any embodiment of the first aspect of this application, used in a network-side device, includes the following steps 210-240.

[0060] Step 210: Determine the time resource overlap between the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information of the terminal-side device.

[0061] The network-side device determines that the time resources of the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information of the terminal-side device overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the characteristic uplink control information.

[0062] Network-side devices can learn about the resource allocation of the basic PUCCH and reference channels of terminal-side devices through configuration information or scheduling information, thereby determining whether there is any time resource overlap between them.

[0063] Step 220: Determine one of the basic physical uplink control channel and the reference channel as a temporary channel.

[0064] The network-side device determines one of the basic physical uplink control channel and the reference channel as a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information.

[0065] Network-side devices can determine temporary channels based on the same multiplexing policy rules as terminal-side devices, ensuring that the network side and terminal side have a consistent understanding of temporary channels.

[0066] Step 230: Determine the detection method.

[0067] Network-side equipment needs to determine how to detect UCI. Since terminal-side equipment may choose different transmission methods depending on the amount of power reduction, network-side equipment needs to be able to handle two possible transmission scenarios.

[0068] Step 240: Detect the feature uplink control information and the first information in the following manner: detect the feature uplink control information on the basic physical uplink control channel and abandon the detection of the first information; or, detect the feature uplink control information and the first information on the temporary channel.

[0069] Specifically, the network-side device can employ a blind detection approach, simultaneously attempting two detection methods. If the terminal-side device sends identification information, the network-side device can also detect the identification information. This identification information distinguishes between the case where the terminal-side device discards the first information and sends the characteristic uplink control information on the basic physical uplink control channel, and the case where the terminal-side device sends both the characteristic uplink control information and the first information on the temporary channel.

[0070] Optionally, the network-side device sends a first configuration parameter, which is used to indicate a first threshold. The first threshold is used by the terminal-side device to determine whether the reduction in the transmission power of the temporary channel exceeds the first threshold.

[0071] Optionally, the network-side device sends second configuration information, which is used to instruct the supporting terminal-side device to determine the transmission of the feature uplink control information and / or the transmission of the first information based on the reduction in the transmission power of the temporary channel.

[0072] Optionally, the network device determines that the first information includes at least one of the following: channel state information and uplink shared channel data; Optionally, the network device determines and sends preset information, which is used to determine the priority order of the first information and the feature uplink control information; Figure 3 This is a flowchart illustrating an embodiment of the method of this application used in a terminal-side device.

[0073] The method described in any embodiment of the first aspect of this application, used in a terminal-side device, includes the following steps 310-340.

[0074] Step 310: Determine the time resource overlap between the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information.

[0075] The terminal-side device determines that the time resources of the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the feature uplink control information.

[0076] The specific implementation method corresponds to step 110 of Embodiment 1. The terminal device first detects its uplink transmission resource allocation and identifies whether there is time resource overlap between the basic PUCCH and the reference channel corresponding to the feature UCI.

[0077] Step 320: Determine that one of the basic physical uplink control channel and the reference channel is a temporary channel.

[0078] The terminal-side device determines one of the basic physical uplink control channel and the reference channel as a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information.

[0079] The specific implementation method is the same as step 120 in Embodiment 1, and will not be repeated here.

[0080] Step 330: Determine whether the reduction in the transmission power of the temporary channel exceeds the first threshold.

[0081] The terminal-side device obtains the reduction in transmit power of the temporary channel and compares it with a first threshold. The first threshold can be 0, or it can be a first configuration parameter configured by the network-side device for the terminal-side device.

[0082] Step 340: Execute the corresponding sending operation based on the judgment result.

[0083] When the reduction in the transmission power of the temporary channel exceeds a first threshold, the first information is discarded, and the characteristic uplink control information is transmitted on the basic physical uplink control channel; when the reduction in the transmission power of the temporary channel does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel.

[0084] Specifically, when a UE transmits a PUSCH carrying a UCI, if the total uplink channel power of the UE within the time unit containing the PUSCH exceeds the UE's maximum transmit power, the UE's actual transmit power will be allocated among the uplink channels according to priority. Although the power allocation priority for PUSCHs carrying UCIs is high, the transmit power may still be scaled, affecting the performance of UCI transmission. Through this step, the UE can determine the transmission method based on the amount of power reduction, avoiding damage to high-priority UCIs due to power scaling.

[0085] Optionally, the terminal-side device obtains second configuration information, which is used to indicate support for determining the transmission of the characteristic uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel.

[0086] Optionally, the terminal device sends identification information, which is used to distinguish between the case where the first information is discarded and the characteristic uplink control information is sent on the basic physical uplink control channel, and the case where the characteristic uplink control information and the first information are sent on the temporary channel.

[0087] Optionally, the terminal-side device determines that the first information includes at least one of the following: channel state information and uplink shared channel data; Optionally, the terminal device acquires preset information, which is used to indicate the priority order of the first information and the feature uplink control information.

[0088] Figure 4 This is a schematic diagram of an embodiment of a network-side device.

[0089] This application also proposes a network-side device for implementing the method of any embodiment of this application, wherein the network-side device is used to implement the functions described in steps 210-240: To implement the above technical solution, this application proposes a network-side device 400, which includes a network transmitting module 401, a network determining module 402, and a network receiving module 403 that are interconnected.

[0090] The network determination module 402 is used to determine that the time resources of the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information of the terminal device overlap, wherein the reference channel is a physical uplink control channel or a physical uplink shared channel, the reference channel carries first information, and the transmission priority of the first information is lower than that of the characteristic uplink control information; and to determine that one of the basic physical uplink control channel and the reference channel is a temporary channel, wherein the temporary channel corresponds to the characteristic uplink control information and the first information.

[0091] Specifically, the network determination module 402 can determine the above-mentioned resource overlap relationship and temporary channel through configuration information. The specific implementation method can be referred to steps 210-220 of Embodiment 3.

[0092] The network receiving module 403 is configured to detect the characteristic uplink control information and the first information in the following manner: detecting the characteristic uplink control information on the basic physical uplink control channel and abandoning the detection of the first information; or, detecting the characteristic uplink control information and the first information on the temporary channel; and detecting identification information, the identification information being used to distinguish between the case where the terminal-side device discards the first information and sends the characteristic uplink control information on the basic physical uplink control channel, and the case where the terminal-side device sends the characteristic uplink control information and the first information on the temporary channel.

[0093] Specifically, the network receiving module 403 can adopt a blind detection method and try two detection methods at the same time. The specific implementation method can be referred to step 240 of embodiment 3.

[0094] The network transmission module 401 is configured to transmit a first configuration parameter, which indicates a first threshold, and the first threshold is used by the terminal-side device to determine whether the reduction in the transmission power of the temporary channel exceeds the first threshold; and to transmit second configuration information, which instructs the terminal-side device to determine whether to transmit the characteristic uplink control information and / or transmit the first information based on the reduction in the transmission power of the temporary channel.

[0095] Specifically, the network transmission module 401 can carry the above configuration parameters in the Radio Resource Control (RRC) signaling, and the specific implementation method can be referred to the relevant description in Embodiment 3.

[0096] The specific methods for implementing the functions of the network sending module, network determining module, and network receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0097] The network-side equipment described in this application may refer to base station facilities, network-side equipment or servers connected to base stations, systems that provide services for the aforementioned equipment, or any system, subsystem, module, circuit, chip or software operating device that provides information reception, transmission, identification and processing for the aforementioned equipment.

[0098] Figure 5 This is a schematic diagram of an embodiment of the terminal-side device.

[0099] This application also proposes a terminal-side device for implementing the method of any embodiment of this application, wherein the terminal-side device is used to implement the functions described in steps 310-340: To implement the above technical solution, this application proposes a terminal-side device 500, which includes a terminal transmitting module 501, a terminal determining module 502, and a terminal receiving module 503 that are interconnected.

[0100] The terminal determination module 502 is used to determine that the time resources of the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information overlap, wherein the reference channel is a physical uplink control channel or a physical uplink shared channel, the reference channel carries first information, and the transmission priority of the first information is lower than that of the feature uplink control information; and to determine that one of the basic physical uplink control channel and the reference channel is a temporary channel, wherein the temporary channel corresponds to the feature uplink control information and the first information.

[0101] Specifically, the terminal determination module 502 can determine the above-mentioned resource overlap relationship and temporary channel based on the configuration information of the network-side equipment and the UCI multiplexing rules defined in the 3GPP protocol. The specific implementation method can be referred to steps 310-320 of Embodiment 2.

[0102] The terminal transmitting module 501 is configured to: discard the first information and transmit the characteristic uplink control information on the basic physical uplink control channel when the reduction in the transmission power of the temporary channel exceeds a first threshold; transmit the characteristic uplink control information and the first information on the temporary channel when the reduction in the transmission power of the temporary channel does not exceed the first threshold; and transmit identification information, the identification information being used to distinguish between the case of discarding the first information and transmitting the characteristic uplink control information on the basic physical uplink control channel, and the case of transmitting the characteristic uplink control information and the first information on the temporary channel.

[0103] Specifically, the terminal transmission module 501 needs to calculate the transmission power reduction of the temporary channel and determine the final transmission method based on the comparison result with the first threshold. The specific implementation method can be referred to steps 330-340 of Embodiment 2.

[0104] The terminal receiving module 503 is used to obtain second configuration information, which is used to indicate support for determining the transmission of the characteristic uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel.

[0105] Specifically, the terminal receiving module 503 can receive RRC signaling sent by the network-side device and obtain the second configuration information from it.

[0106] The specific methods for implementing the functions of the terminal sending module, the terminal determining module, and the terminal receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0107] The terminal-side equipment described in this application may refer to user equipment (UE), personal mobile terminal, smart terminal, mobile phone, computer with communication function, system that provides services for the above-mentioned equipment, or any system, subsystem, module, circuit, chip or software running device that provides information reception, transmission, identification and processing for the above-mentioned equipment.

[0108] Figure 6 A schematic diagram of the network-side device according to another embodiment of the present invention is shown.

[0109] As shown in the figure, the network-side device 600 includes a processor 601, a wireless interface 602, and a memory 603. The wireless interface can be multiple components, including a transmitter and a receiver, providing a unit for communication with various other devices over a transmission medium. The wireless interface implements communication functions with the terminal-side device, processes wireless signals through receiving and transmitting devices, and the data carried by the signals is communicated with the memory or processor via an internal bus structure. The memory 603 contains a computer program that executes any embodiment of this application, and the computer program runs or modifies the processor 601. When the memory, processor, and wireless interface circuit are connected through a bus system, the bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be described in detail here.

[0110] Figure 7 This is a block diagram of a terminal-side device according to another embodiment of the present invention.

[0111] The terminal-side device 700 includes at least one processor 701, a memory 702, a user interface 703, and at least one wireless network interface 704. The various components in the terminal-side device 700 are coupled together via a bus system. The bus system is used to enable communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0112] User interface 703 may include a display, keyboard, or clicking device, such as a mouse, trackball, touchpad, or touchscreen.

[0113] The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application programs include various applications, such as media players and browsers, used to implement various application functions.

[0114] In an embodiment of the present invention, the memory 702 contains a computer program that executes any embodiment of the present application, the computer program being run on or modified by the processor 701.

[0115] The memory 702 includes a computer-readable storage medium. The processor 701 reads the information in the memory 702 and, in conjunction with its hardware, completes the steps of the above-described method. Specifically, the computer-readable storage medium stores a computer program, which, when executed by the processor 701, implements the steps of the method embodiments described in any of the above embodiments.

[0116] Processors 601 and 701 may be integrated circuit chips with signal processing capabilities. In implementation, each step of the method in this application can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, digital signal processor, application-specific integrated circuit, off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor.

[0117] Based on the embodiments of the above-described apparatus in this application, this application also proposes a mobile communication system, including at least one embodiment of any terminal-side device in this application and / or at least one embodiment of any network-side device in this application.

[0118] Specifically, the mobile communication system includes a network-side device 400 and a terminal-side device 500, which communicate via a wireless interface. The network-side device 400 is used to configure uplink transmission resources, send configuration parameters (including first configuration parameters and second configuration information), and detect uplink information sent by the terminal-side device 500. The terminal-side device 500, based on the configuration of the network-side device 400, determines the time resource overlap between the basic PUCCH corresponding to the feature UCI and the reference channel, determines a temporary channel, and, based on a comparison of the transmission power reduction of the temporary channel with a first threshold, decides whether to transmit the feature UCI on the basic PUCCH (discarding the first information) or transmit the feature UCI and the first information on the temporary channel.

[0119] It should be noted that the specific mobile communication technology described in this invention is not limited, and can be WCDMA, CDMA2000, TD-SCDMA, WiMAX, LTE / LTE-A, LAA, MuLTEfire, 5G NR, and the sixth-generation and Nth-generation mobile communication technologies that may appear in the future.

[0120] The terminal described in this invention refers to a terminal-side product that can support the communication protocols of terrestrial mobile communication systems, and a specially designed wireless modem module that can be integrated into various types of terminal forms such as mobile phones, tablets, and data cards to complete communication functions.

[0121] For ease of description, a fifth-generation mobile communication system is used as an example, where the mobile communication terminal can be represented as UE (User Equipment), and the network-side access equipment can be represented as a base station or access point.

[0122] Based on existing technologies that determine the PUCCH channel carrying multiple UCI type information within the same time unit and ensure the transmission of UCI / UL-SCH types with important priorities when PUCCH and PUSCH times overlap, this application further determines the channel type carrying the characteristic UCI by judging whether the transmission power of important priority information is severely reduced. This can ensure that the transmission performance of higher priority UCI is not affected by power reduction and improve the efficiency of system data transmission.

[0123] The data transmission method and device proposed in this application can be applied to terminal-side devices and network-side devices in wireless communication systems, especially in the transmission scenario of uplink control information in 5G NR and subsequent mobile communication systems.

[0124] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0125] Those skilled in the art will understand that, unless otherwise stated, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be understood that when a device or component is “connected” to another device or component, it may be directly connected to the other device or component, or there may be an intermediary device or component. Furthermore, the term “connection” as used herein may include partially wireless connections as well as partially wired connections.

[0126] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0127] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A data transmission method, characterized in that, Includes the following steps: The time resources of the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the feature uplink control information. One of the basic physical uplink control channel and the reference channel is determined to be a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information; Based on the comparison between the reduction in the transmission power of the temporary channel and a first threshold, the channel carrying the characteristic uplink control information is determined: when the reduction exceeds the first threshold, the characteristic uplink control information is transmitted on the basic physical uplink control channel, and the first information is discarded; when the reduction does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel.

2. A data transmission method for a network-side device, characterized in that, Includes the following steps: The time resources of the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information of the terminal device are determined to overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the characteristic uplink control information. One of the basic physical uplink control channel and the reference channel is determined to be a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information; The feature uplink control information and the first information are detected in the following manner: the feature uplink control information is detected in the basic physical uplink control channel, and the detection of the first information is abandoned; or, the feature uplink control information and the first information are detected in the temporary channel.

3. A data transmission method for a terminal-side device, characterized in that, Includes the following steps: The time resources of the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the feature uplink control information. One of the basic physical uplink control channel and the reference channel is determined to be a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information; When the reduction in the transmission power of the temporary channel exceeds a first threshold, the first information is discarded, and the characteristic uplink control information is transmitted on the basic physical uplink control channel; when the reduction in the transmission power of the temporary channel does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel.

4. The method according to any one of claims 1 to 3, characterized in that, The uplink control information features include at least one of the following: hybrid automatic repeat request acknowledgment, scheduling request, link recovery request, user equipment initiated report indication, and channel state information.

5. The method according to any one of claims 1 to 3, characterized in that, The first information includes at least one of the following: channel state information, uplink shared channel data, and / or, The priority order of the first information and the feature uplink control information is determined based on preset information.

6. The method according to any one of claims 1 to 3, characterized in that, The first threshold is 0, or the first threshold is a first configuration parameter configured by the network-side device for the terminal-side device.

7. The method according to any one of claims 1 to 3, characterized in that, Obtain second configuration information, which is used to indicate support for determining the transmission of the characteristic uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel.

8. The method according to any one of claims 1 to 3, characterized in that, Send identification information, which is used to distinguish between the case where the first information is discarded and the characteristic uplink control information is sent on the basic physical uplink control channel, and the case where the characteristic uplink control information and the first information are sent on the temporary channel.

9. A network-side device for implementing the method according to any one of claims 1 to 8, characterized in that, At least one module in the network-side device is used for at least one of the following functions: The time resources of the basic physical uplink control channel and the reference channel corresponding to the characteristic uplink control information of the terminal device are determined to overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the characteristic uplink control information. One of the basic physical uplink control channel and the reference channel is determined to be a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information; The feature uplink control information and the first information are detected in the following manner: the feature uplink control information is detected in the basic physical uplink control channel, and the detection of the first information is abandoned; or, the feature uplink control information and the first information are detected in the temporary channel. Send a first configuration parameter, which is used to indicate a first threshold. The first threshold is used by the terminal-side device to determine whether the reduction in the transmission power of the temporary channel exceeds the first threshold. Send second configuration information, which is used to instruct the supporting terminal-side device to determine the transmission of the feature uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel; The identification information is used to distinguish between the case where the terminal device discards the first information and sends the feature uplink control information on the basic physical uplink control channel, and the case where the terminal device sends the feature uplink control information and the first information on the temporary channel. The first information is determined to include at least one of the following: channel state information, uplink shared channel data; Determine and send preset information, which is used to determine the priority order of the first information and the feature uplink control information.

10. A terminal-side device for implementing the method according to any one of claims 1 to 8, characterized in that, At least one module in the terminal-side device is used for at least one of the following functions: The time resources of the basic physical uplink control channel and the reference channel corresponding to the feature uplink control information overlap. The reference channel is a physical uplink control channel or a physical uplink shared channel. The reference channel carries first information, and the transmission priority of the first information is lower than that of the feature uplink control information. One of the basic physical uplink control channel and the reference channel is determined to be a temporary channel, and the temporary channel corresponds to the characteristic uplink control information and the first information; When the reduction in the transmission power of the temporary channel exceeds a first threshold, the first information is discarded, and the characteristic uplink control information is transmitted on the basic physical uplink control channel; when the reduction in the transmission power of the temporary channel does not exceed the first threshold, the characteristic uplink control information and the first information are transmitted on the temporary channel. Obtain second configuration information, which is used to indicate support for determining the transmission of the characteristic uplink control information and / or the transmission of the first information based on the reduction amount of the transmission power of the temporary channel; Send identification information, which is used to distinguish between the case of discarding the first information and sending the feature uplink control information on the basic physical uplink control channel, and the case of sending the feature uplink control information and the first information on the temporary channel; The first information is determined to include at least one of the following: channel state information, uplink shared channel data; Obtain preset information, which is used to indicate the priority order of the first information and the feature uplink control information.

11. A communication device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 8.

12. A computer-readable medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method as described in any one of claims 1 to 8.

13. A mobile communication system comprising at least one network-side device as described in claim 9 and / or at least one terminal-side device as described in claim 10.

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