A transmission control method, apparatus, terminal, and network-side equipment

Abstract

This invention provides a transmission control method, apparatus, terminal, and network-side equipment, relating to the field of communication technology. The method includes: receiving two downlink channels; and selecting, based on the reception of the two downlink channels, an uplink control channel transmission mode between repeated uplink control channel transmission and a single uplink control channel transmission mode. The solution of this invention solves the problem of significant resource waste caused by repeated PUCCH transmission in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a transmission control method, apparatus, terminal and network-side equipment. Background Technology

[0002] To improve channel reliability, enhancement schemes for repetition of the Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), and Physical Uplink Control Channel (PUCCH) are proposed in Multi-Transmit Receive Point (Multi-TRP) scenarios. The PDSCH repetition scheme supports Spatial Division Multiplexing (SDM), Frequency Division Multiplexing (FDM), intra-slot Time Division Multiplexing (TDM), and inter-slot TDM transmission. The PDCCH repetition scheme supports both FDM and TDM transmission. For the PUCCH repetition transmission scheme, two spatial-relation-info parameters or two sets of power control parameters can be configured for a portion of the PUCCH resources, with each spatial-relation-info / power control parameter corresponding to one of the two TRPs; and one spatial-relation-info / power control parameter can be configured for another portion of the PUCCH resources, corresponding to a certain TRP.

[0003] If the PUCCH Resource Indicator field (PRI field) in the Downlink Control Information (DCI) indicates that the PUCCH resource is configured with two spatial-relation-info / power control parameters, then it indicates that the UE can perform multi-TRP repetition transmission on this PUCCH resource; otherwise, the UE performs single-TRP transmission.

[0004] To support the dynamic switching between Multi-TRP and Single-TRP transmission for UEs, two sets of PUCCH resources need to be configured for the UE, one for each of the two transmission schemes (Single-TRP / Multi-TRP). This results in a significant waste of PUCCH resources and also limits the flexibility of PUCCH resource configuration. Summary of the Invention

[0005] The purpose of this invention is to provide a transmission control method, apparatus, terminal, and network-side equipment, which solves the problem of significant resource waste caused by repeated PUCCH transmission in the prior art.

[0006] To achieve the above objectives, embodiments of the present invention provide a transmission control method applied to a terminal, comprising:

[0007] Receives two downlink channels;

[0008] Based on the reception of the two downlink channels, select one of the following uplink control channel transmission methods: repeated transmission multiple times or single transmission.

[0009] To achieve the above objectives, embodiments of the present invention provide a transmission control method applied to a network-side device, comprising:

[0010] Send two downlink channels;

[0011] The terminal receives an uplink control channel, which is transmitted by the terminal using either a repeated uplink control channel transmission mode or a single uplink control channel transmission mode. Based on the reception of the two downlink channels, the terminal selects one of the uplink control channel transmission modes: the repeated uplink control channel transmission mode or the single uplink control channel transmission mode.

[0012] To achieve the above objectives, embodiments of the present invention provide a transmission control device applied to a terminal, comprising:

[0013] The receiving module is used to receive two downlink channels;

[0014] The transmission module is used to select, based on the reception of two downlink channels, a transmission mode for the uplink control channel, either a repeated transmission mode or a single transmission mode.

[0015] To achieve the above objectives, embodiments of the present invention provide a transmission control device applied to a network-side device, comprising:

[0016] The transmitting module is used to transmit data through two downlink channels;

[0017] The first receiving module is used to receive the uplink control channel, which is transmitted by the terminal using either the uplink control channel repeated transmission mode or the uplink control channel single transmission mode. The terminal selects one of the uplink control channel transmission modes, the uplink control channel repeated transmission mode and the uplink control channel single transmission mode, based on the reception of the two downlink channels.

[0018] To achieve the above objectives, embodiments of the present invention provide a terminal, including a processor and a transceiver, wherein,

[0019] The transceiver is used to receive two downlink channels;

[0020] The processor is used to select an uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode based on the reception of two downlink channels.

[0021] To achieve the above objectives, embodiments of the present invention provide a terminal, including a transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; when the processor executes the program or instructions, it implements the steps in the transmission control method on the terminal side as described above.

[0022] To achieve the above objectives, embodiments of the present invention provide a network-side device, including a processor and a transceiver, wherein,

[0023] The transceiver is used to transmit two downlink channels; and

[0024] The terminal receives an uplink control channel, which is transmitted by the terminal using either a repeated uplink control channel transmission mode or a single uplink control channel transmission mode. Based on the reception of the two downlink channels, the terminal selects one of the uplink control channel transmission modes: the repeated uplink control channel transmission mode or the single uplink control channel transmission mode.

[0025] To achieve the above objectives, embodiments of the present invention provide a network-side device, including a transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; when the processor executes the program or instructions, it implements the steps in the transmission control method of the network-side device as described above.

[0026] To achieve the above objectives, embodiments of the present invention provide a readable storage medium having a program or instructions stored thereon, wherein the program or instructions, when executed by a processor, implement the steps in the transmission control method of the terminal or network-side device as described above.

[0027] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0028] This invention, by receiving two downlink channels and selecting one uplink control channel transmission mode from multiple uplink control channel transmission modes and a single uplink control channel transmission mode based on the reception of the two downlink channels, can flexibly select a suitable mode for uplink transmission from multiple TRP repeated transmission modes and a single TRP repeated transmission mode based on channel quality. This avoids the problem of low transmission reliability and resource waste caused by still using a TRP for transmission when the channel quality of a certain TRP is poor. Attached Figure Description

[0029] Figure 1 This is a schematic flowchart of the transmission control method on the terminal side according to an embodiment of the present invention;

[0030] Figure 2 This is a flowchart illustrating the transmission method of multiple uplink control channel transmission modes according to an embodiment of the present invention.

[0031] Figure 3 This is a flowchart illustrating the transmission method of a single uplink control channel transmission mode according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the transmission control device on the terminal side according to an embodiment of the present invention;

[0033] Figure 5 This is a structural block diagram of the terminal according to an embodiment of the present invention;

[0034] Figure 6 This is a flowchart illustrating the transmission control method for a network-side device according to an embodiment of the present invention.

[0035] Figure 7 This is a schematic diagram of the transmission control device of the network-side equipment according to an embodiment of the present invention;

[0036] Figure 8 This is a structural block diagram of a network-side device according to an embodiment of the present invention. Detailed Implementation

[0037] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0038] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0039] In various embodiments of the present invention, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0040] In addition, the terms "system" and "network" are often used interchangeably in this article.

[0041] In the embodiments provided in this application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0042] In traditional methods, the switching of PUCCH transmission schemes is determined by flexible indications in the PRI field. In other words, the PUCCH transmission scheme is actually decided by the base station. If the UE is instructed to perform Multi-TRP repetition transmission on the indicated PUCCH resource, however, as the channel changes continuously, the channel of a certain TRP may deteriorate rapidly and become unsuitable for Multi-TRP transmission. Compared to single-TRP transmission, Multi-TRP transmission leads to a significant performance loss in PUCCH. In this case, the UE cannot flexibly switch transmission schemes, resulting in a substantial loss of transmission performance.

[0043] like Figure 1 As shown, a transmission control method according to an embodiment of the present invention is applied to a terminal and includes, but is not limited to, the following steps:

[0044] Step 11: Receive two downlink channels.

[0045] The two downlink channels originate from two separate Transmission Configuration Indicator (TRPs). Each TRP corresponds to a different Transmission Configuration Indicator (TCI) state, and each TCI state corresponds to its own set of power control parameters. Specifically, the two TRPs can be indicated by spatial-relation-info or power control parameter sets; that is, each TRP corresponds to its own spatial-relation-info or power control parameter set, and the spatial-relation-info or power control parameter sets of the two TRPs are different. The downlink channels include, but are not limited to, PDCCH or PDSCH. For example, if the two TRPs are TRP0 and TRP1, the terminal receives PDCCH0 or PDSCH0 from TRP0, and PDCCH1 and PDSCH1 from TRP1.

[0046] Step 12: Based on the reception of the two downlink channels, select one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode.

[0047] The uplink channel is configured with two TRPs, including but not limited to: PUCCH or Physical Uplink Shared Channel (PUSCH). For example, the base station may indicate to the terminal via PRI that a certain PUCCH resource is configured with two spatial-relation-info / power control parameter sets, namely {spatial-relation-info#0, spatial-relation-info#1} / {power control parameter set #0, power control parameter set #1}. When the terminal is allowed to adaptively select between multi-TRP repetition transmission mode and single-TRP repetition transmission mode based on the channel quality of the downlink channel, the UE can adaptively determine the transmission mode of the uplink channel. Specifically, based on the channel quality of the two downlink channels, the channel quality of the two TRPs can be determined, thus allowing the selection of multi-TRP repetition transmission mode or single-TRP repetition transmission mode for uplink channel transmission based on the channel quality of the TRPs. Specifically, the uplink and downlink channels have channel reciprocity. If the channel quality of the downlink channel is good, it can be determined that the channel quality of the uplink channel in the same direction is also good. The terminal can adaptively select the multiple TRP repetition transmission mode or the single TRP repetition transmission mode to transmit the uplink channel based on the channel quality of the downlink channel.

[0048] Optionally, the base station can also instruct the terminal to adaptively select between multi-TRP retransmission mode and single-TRP retransmission mode based on the channel quality of the downlink channel. This can be indicated, for example, through RRC signaling, or through the Medium Access Control Element (MAC CE), or through DCI.

[0049] Optionally, the terminal can also report to the base station whether the selected transmission mode is a multi-TRP repeat transmission mode or a single-TRP repeat transmission mode. For example, it can be indicated through the Physical Uplink Shared Channel (PUSCH), or through the Medium Access Control Control Element (MAC CE), or reported through the Physical Uplink Control Channel (PUCCH).

[0050] Optionally, step 12 includes: when the channel quality of the two downlink channels is close, selecting the uplink control channel repeated transmission mode from the options of uplink control channel multiple transmission mode and uplink control channel single transmission mode. For example, when the difference in channel quality between the two downlink channels is less than a first preset threshold, the uplink control channel repeated transmission mode is selected to transmit multiple uplink control channels; or, when the ratio of the channel quality of the two downlink channels is within a first preset range, the uplink control channel repeated transmission mode is selected to transmit multiple uplink control channels. Optionally, step 12 includes: when the channel quality of the two downlink channels is close, selecting the uplink channel to be transmitted using the multiple TRP repeated transmission mode. For example, when the difference in channel quality between the two downlink channels is less than a first preset threshold, the uplink channel is selected to be transmitted using the multiple TRP repeated transmission mode; or, when the ratio of the channel quality of the two downlink channels is within a first preset range, the uplink channel is selected to be transmitted using the multiple TRP repeated transmission mode.

[0051] Channel quality can be represented by Reference Signal Received Power (RSRP) or Reference Signal Received Quality (RSRQ). The first preset threshold can be agreed upon by the protocol or indicated by the base station. The first preset range is close to 1. If the ratio of the channel quality of two downlink channels is close to 1, it indicates that the channel quality of the two downlink channels is similar.

[0052] Optionally, step 12 includes: when the channel quality of the two downlink channels is not close, selecting the uplink control channel single transmission mode from the options of multiple uplink control channel transmission mode and single uplink control channel transmission mode. For example, when the difference in channel quality between the two downlink channels is greater than or equal to a second preset threshold, the uplink control channel single transmission mode is selected to transmit one uplink control channel; or, when the ratio of the channel quality of the two downlink channels is not within a second preset range, the uplink control channel single transmission mode is selected to transmit one uplink control channel. Optionally, step 12 includes: when the channel quality of the two downlink channels is not close, selecting the single TRP repeated transmission mode to transmit the uplink channel. For example, when the difference in channel quality between the two downlink channels is greater than or equal to a second preset threshold, the single TRP repeated transmission mode is selected to transmit the uplink channel; or, when the ratio of the channel quality of the two downlink channels is not within a second preset range, the single TRP repeated transmission mode is selected to transmit the uplink channel.

[0053] The second preset threshold can be agreed upon by protocol or indicated by the base station. The second preset range is a range close to 1. If the ratio of the channel quality of the two downlink channels is not close to 1, it indicates that the channel quality of the two downlink channels is close. Furthermore, the second preset threshold can be the same as or different from the first preset threshold, and the first preset range can also be the same as or different from the second preset range.

[0054] Further, selecting the single-transmission uplink control channel transmission method includes transmitting the uplink control channel on the channel with better quality among the two channels. Optionally, the TRP with better channel quality is selected as the target TRP for the single-transmission repetition method; the uplink channel is transmitted through the target TRP. When the channel quality of the two downlink channels is not close, the TRP with better channel quality can be selected for uplink channel transmission.

[0055] Furthermore, the two downlink channels are independently configured with their own TCI states, and the two downlink channels are configured with different Transmission Configuration Indicator (TCI) states.

[0056] The two downlink channels include two physical downlink shared channels, which are configured with different TCI states.

[0057] Alternatively, the two downlink channels may include two physical downlink control channels, each associated with a different TCI state of its control resource set (CORESET).

[0058] Alternatively, the two downlink channels may include a physical downlink shared channel and a physical downlink control channel, wherein the TCI state configured for the physical downlink shared channel is different from the TCI state of the CORESET associated with the physical downlink control channel.

[0059] Optionally, the method further includes: receiving the configuration of an uplink control channel resource; the configuration of the uplink control channel resource includes: at least two spatial relationship information, and / or at least two sets of power control parameters, and / or at least two TCI states.

[0060] The uplink control channel repeated transmission mode is a mode in which at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

[0061] The uplink control channel single transmission mode is a mode of transmission based on at least two spatial relationship information, at least two power control parameter sets, or at least one of two TCI states in the configuration of the uplink control channel resource.

[0062] Optionally, the two uplink control channels may correspond to different spatial relationship information, different sets of power control parameters, or different TCI states. In scenarios where Joint Unified TCI does not exist, the PUCCH transmission mode is determined as follows:

[0063] The UE receives two PDCCH / PDSCH from two different TRPs. The TCI states in the control resource set (CORESET) corresponding to the two PDCCHs are also different (or, the TCI states of the pair of PDSCHs activated by the MAC CE for receiving PDSCHs are different), namely TCI#0 and TCI#1. Assume that PDCCH#0 / PDSCH#0 comes from TRP#0 and PDCCH#1 / PDSCH#1 comes from TRP1.

[0064] like Figure 2 As shown, if the received RSRP or signal-to-noise and interference ratio (SINR) of the two PDCCH / PDSCH are close, or the difference between the two is less than a certain threshold, then it can be determined that the downlink channel conditions of the two TRPs are close. In this case, the PUCCH performs Multi-TRP repetition transmission and sends it to the two TRPs respectively.

[0065] Otherwise, such as Figure 3 As shown, the UE sends PUCCH only to the TRP with the larger received RSRP or SINR among the two PDCCH / PDSCH signals, falling back to single-TRP transmission mode. In other words, if the UE receives a better PDCCH / PDSCH based on the TCI state (TCI#0) with the smaller ID, then on FR2, for the PUCCH, it will only send PUCCH based on the spatial relation info (e.g., spatial-relation-info#0) with the smaller ID. Alternatively, on FR1, for the PUCCH, it will only send PUCCH based on the power control parameter set with the smaller ID (e.g., power control parameter set #0).

[0066] Specifically, the base station and the UE pre-agree that the spatial relation info / power control parameter set with the smaller ID configured in the PUCCH and the TRP corresponding to the TCI state with the smaller ID configured in the PDCCH / PDSCH are consistent. Furthermore, regarding the information that the UE will fall back to Single-TRP mode, the UE can explicitly report it to the base station or not.

[0067] Alternatively, the two downlink channels may be jointly configured with their respective TCI states, and the two uplink control channels may correspond to the same spatial relationship information or the same set of power control parameters. In scenarios where a unified TCI exists, the PUCCH transmission mode is determined as follows:

[0068] Both PDCCH / PDSCH and PUCCH are configured with the same set of joint unified TCI states (TCI#0, TCI#1), corresponding to TRP0 and TRP1 respectively. The UE receives two PDCCH / PDSCH from two different TRPs, and the joint TCI states in the CORESET corresponding to the two PDCCH are also different (or, the pair of joint TCI states activated by the MAC CE for receiving PDSCH are different). Assume that PDCCH#0 / PDSCH#0 comes from TRP#0, and PDCCH#1 / PDSCH#1 comes from TRP#1.

[0069] like Figure 2 As shown, if the received RSRP or SINR information of two PDCCH / PDSCH are close, or the difference between them is less than a certain threshold, then it can be determined that the downlink channel conditions of the two TRPs are close. In this case, the PUCCH performs Multi-TRPrepetition transmission and sends it to the two TRPs according to their respective TCI states.

[0070] Otherwise, such as Figure 3 As shown, the UE sends PUCCH only to the TRP with better performance among the two PDCCH / PDSCH, falling back to single-TRP transmission mode. That is, if the UE receives a PDCCH / PDSCH with better performance based on one of the two joint TCI states (joint TCI state #0), then the UE will also only send PUCCH according to joint TCI state #0.

[0071] Regarding the information that the UE will fall back to Single-TRP mode, the UE can explicitly report it to the base station or not.

[0072] In the transmission control method of this invention, two downlink channels are received from two transmit / receive points (TRPs). Based on the channel quality of the two downlink channels, an uplink transmission method is selected from both multi-TRP repetitive transmission and single-TRP repetitive transmission methods. This allows for flexible selection of a suitable uplink transmission method based on channel quality, avoiding the problems of low transmission reliability and resource waste caused by using a TRP with poor channel quality for transmission.

[0073] The above embodiments describe the transmission control method of the present invention. The corresponding device embodiments will be further described below with reference to the accompanying drawings.

[0074] like Figure 4 As shown, an embodiment of the present invention provides a transmission control device applied to a terminal, comprising:

[0075] Receiver module 410 is used to receive two downlink channels;

[0076] The transmission module 420 is used to select an uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode based on the reception of the two downlink channels.

[0077] Optionally, the transmission module includes:

[0078] The first transmission submodule is used to select the uplink control channel to transmit multiple times when the difference in channel quality between the two downlink channels is less than a first preset threshold.

[0079] or,

[0080] The second transmission submodule is used to select the uplink control channel to transmit multiple times when the ratio of the channel quality of the two downlink channels is within a first preset range.

[0081] Optionally, the transmission module includes:

[0082] The third transmission submodule is used to select the uplink control channel single transmission mode to send an uplink control channel once when the channel quality difference between the two downlink channels is greater than or equal to the second preset threshold.

[0083] or,

[0084] The fourth transmission submodule is used to select the uplink control channel single transmission mode to send an uplink control channel once when the ratio of the channel quality of the two downlink channels is not within a second preset range.

[0085] Optionally, the third transmission module or the fourth transmission module includes:

[0086] A transmission unit is used to transmit the uplink control channel on the channel with better quality of the two channels.

[0087] Optionally, the two downlink channels are configured with different Transmission Configuration Indicator (TCI) states.

[0088] Optionally, the two downlink channels include two physical downlink shared channels, wherein the two physical downlink shared channels are configured with different TCI states.

[0089] Alternatively, the two downlink channels may include two physical downlink control channels, each associated with a different TCI state of its control resource set (CORESET).

[0090] Alternatively, the two downlink channels may include a physical downlink shared channel and a physical downlink control channel, wherein the TCI state configured for the physical downlink shared channel is different from the TCI state of the CORESET associated with each of the physical downlink control channels.

[0091] Optionally, the transmission control device further includes:

[0092] The second receiving module is used to receive the configuration of an uplink control channel resource; the configuration of the uplink control channel resource includes: at least two spatial relationship information, and / or at least two sets of power control parameters, and / or at least two TCI states.

[0093] Optionally, the uplink control channel is transmitted repeatedly in a manner that transmits information according to at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states in the configuration of the uplink control channel resource.

[0094] Alternatively, the uplink control channel single transmission mode may be a mode in which at least two spatial relationship information, at least two sets of power control parameters, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

[0095] The device embodiments of the present invention correspond to the method embodiments described above. All implementations of the method embodiments described above are applicable to this device embodiment and can achieve the same technical effect, so they will not be described in detail here.

[0096] A terminal according to an embodiment of the present invention includes a processor and a transceiver, wherein,

[0097] The transceiver is used to receive two downlink channels;

[0098] The processor is used to select an uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode based on the reception of the two downlink channels.

[0099] Optionally, the processor is further configured to:

[0100] When the difference in channel quality between the two downlink channels is less than a first preset threshold, the uplink control channel is selected to be transmitted multiple times in a repeated transmission mode.

[0101] or,

[0102] When the ratio of the channel quality of the two downlink channels is within a first preset range, the uplink control channel is selected to be transmitted multiple times in a repeated transmission mode.

[0103] Optionally, the processor is further configured to:

[0104] When the difference in channel quality between the two downlink channels is greater than or equal to the second preset threshold, the uplink control channel is sent once using the single transmission mode.

[0105] or,

[0106] When the ratio of the channel quality of the two downlink channels is not within the second preset range, the uplink control channel is sent once using the single transmission mode.

[0107] Optionally, the processor is further configured to:

[0108] Send an uplink control channel once on the channel with better quality of the two channels.

[0109] Optionally, the two TRPs are configured with different Transmission Configuration Indicator (TCI) states.

[0110] Optionally, the two uplink control channels are configured with different TCI states.

[0111] The two downlink channels include two physical downlink shared channels, which are configured with different TCI states.

[0112] Alternatively, the two downlink channels may include two physical downlink control channels, each associated with a different TCI state of its control resource set (CORESET).

[0113] Alternatively, the two downlink channels may include a physical downlink shared channel and a physical downlink control channel, wherein the TCI state configured for the physical downlink shared channel is different from the TCI state of the CORESET associated with each of the physical downlink control channels.

[0114] The transceiver is used to receive the configuration of an uplink control channel resource; the configuration of the uplink control channel resource includes: at least two spatial relationship information, and / or at least two sets of power control parameters, and / or at least two TCI states.

[0115] Optionally, the uplink control channel is transmitted repeatedly in a manner that transmits information according to at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states in the configuration of the uplink control channel resource.

[0116] Alternatively, the uplink control channel single transmission mode can be a mode of transmission based on at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states in the configuration of the uplink control channel resource. In this embodiment, the terminal receives two downlink channels; based on the reception of the two downlink channels, it selects one of the uplink control channel transmission modes from multiple uplink control channel transmission modes and a single uplink control channel transmission mode. This allows for flexible selection of a suitable uplink transmission mode from multiple TRP repeated transmission modes and a single TRP repeated transmission mode based on channel quality, avoiding the problems of low transmission reliability and resource waste caused by still using a TRP with poor channel quality.

[0117] Another embodiment of the present invention includes a terminal, such as Figure 5As shown, it includes a transceiver 510, a processor 500, a memory 520, and a program or instructions stored in the memory 520 and executable on the processor 500; when the processor 500 executes the program or instructions, it implements the above-described transmission control method.

[0118] The transceiver 510 is used to receive and send data under the control of the processor 500.

[0119] Among them, Figure 5 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 500 and memory represented by memory 520 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 510 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, user interface 530 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0120] The processor 500 is responsible for managing the bus architecture and general processing, while the memory 520 can store the data used by the processor 500 when performing operations.

[0121] It should be further noted that the terminals described in this specification include, but are not limited to, smartphones, tablets, etc., and many of the functional components described are referred to as modules in order to emphasize the independence of their implementation.

[0122] The transmission control method, apparatus, and terminal of the present invention have been described above from the perspective of the terminal side. The transmission control method, apparatus, and network side device of the present invention will be further described below with reference to the accompanying drawings.

[0123] like Figure 6 As shown, this embodiment of the invention provides a transmission control method applied to a network-side device, including but not limited to the following steps:

[0124] Step 61: Send two downlink channels.

[0125] The two downlink channels originate from two TRPs, each with a different Transmission Configuration Indicator (TCI) state, and each TCI state corresponds to its own set of power control parameters.

[0126] Step 62: Receive the uplink control channel. The uplink control channel is sent by the terminal using either the uplink control channel repeated transmission mode or the uplink control channel single transmission mode. Based on the reception of the two downlink channels, the terminal selects one of the uplink control channel transmission modes: the uplink control channel repeated transmission mode or the uplink control channel single transmission mode.

[0127] Optionally, step 62 includes: receiving uplink control channels via two TRPs.

[0128] Optionally, before step 62, the method further includes receiving indication information, which is used to indicate the uplink control channel transmission mode selected by the terminal.

[0129] Based on the channel quality of the two downlink channels, the channel quality of the two TRPs can be determined. This allows the terminal to choose between multiple TRP repetition transmission or single TRP repetition transmission for uplink channel transmission. Specifically, since uplink and downlink channels exhibit channel reciprocity, a good downlink channel quality generally indicates a good uplink channel quality in the same direction. The terminal can then adaptively select between multiple TRP repetition transmission or single TRP repetition transmission based on the downlink channel quality.

[0130] like Figure 7 As shown, this embodiment of the invention also provides a transmission control device applied to a network-side device, which includes, but is not limited to, the following functional modules:

[0131] Transmitting module 710 is used to transmit two downlink channels;

[0132] The first receiving module 720 is used to receive the uplink control channel. The uplink control channel is transmitted by the terminal using either the uplink control channel repeated transmission method or the uplink control channel single transmission method. Based on the reception of the two downlink channels, the terminal selects one of the uplink control channel transmission methods, namely the uplink control channel repeated transmission method or the uplink control channel single transmission method.

[0133] The device embodiments of the present invention correspond to the method embodiments described above. All implementations of the method embodiments described above are applicable to this device embodiment and can achieve the same technical effect, so they will not be described in detail here.

[0134] Another embodiment of the network-side device of the present invention, such as Figure 8 As shown, it includes a transceiver 810, a processor 800, a memory 820, and a program or instructions stored in the memory 820 and executable on the processor 800; when the processor 800 executes the program or instructions, it implements the above-mentioned transmission control method applied to network-side devices.

[0135] The transceiver 810 is used to receive and send data under the control of the processor 800.

[0136] Among them, Figure 8 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 800) and memory (memory 820). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 810 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 during operation.

[0137] An embodiment of the present invention provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the steps in the transmission control method described above and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0138] The processor mentioned above is the processor in the terminal or network-side device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0139] In this embodiment of the invention, the module can be implemented in software so that it can be executed by various types of processors. For example, an identified executable code module may include one or more physical or logical blocks of computer instructions, which may be constructed as objects, procedures, or functions. Nevertheless, the executable code of the identified module does not need to be physically located together, but may include different instructions stored in different bits, which, when logically combined, constitute the module and achieve the module's intended purpose.

[0140] In practice, an executable code module can be a single instruction or many instructions, and can even be distributed across multiple different code segments, different programs, and across multiple memory devices. Similarly, operational data can be identified within the module and can be implemented in any suitable form and organized within any suitable type of data structure. This operational data can be collected as a single dataset or distributed across different locations (including different storage devices), and can exist, at least in part, solely as electronic signals within the system or network.

[0141] When a module can be implemented using software, considering the current level of hardware technology, modules that can be implemented in software can be implemented using hardware circuits by those skilled in the art to achieve the corresponding functions, without considering cost. These hardware circuits include conventional very-large-scale integrated circuits (VLSI) or gate arrays, as well as existing semiconductors such as logic chips and transistors, or other discrete components. Modules can also be implemented using programmable hardware devices, such as field-programmable gate arrays, programmable array logic, and programmable logic devices.

[0142] The exemplary embodiments described above are with reference to the accompanying drawings. Many different forms and embodiments are feasible without departing from the spirit and teachings of the invention. Therefore, the invention should not be construed as limiting the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided to make the invention complete and convey the scope of the invention to those skilled in the art. In these drawings, component dimensions and relative dimensions may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, unless clearly indicated otherwise, the singular forms “a,” “an,” and “the” are intended to include all such forms. It will be further understood that the terms “comprising” and / or “including”, when used in this specification, indicate the presence of the stated features, integers, steps, operations, components, and / or elements, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, and / or groups thereof. Unless otherwise indicated, when stated, a range of values ​​includes the upper and lower limits of the range and any subranges in between.

[0143] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A transmission control method, characterized in that, Applied to terminals, including: Receives two downlink channels; Based on the reception of the two downlink channels, select one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode; Receive the configuration of an uplink control channel resource; the configuration of the uplink control channel resource includes: at least two spatial relationship information, and / or at least two sets of power control parameters, and / or at least two TCI states; The uplink control channel is transmitted repeatedly in a manner that transmits information according to at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states in the configuration of an uplink control channel resource. Alternatively, the uplink control channel single transmission mode may be a mode in which at least two spatial relationship information, at least two sets of power control parameters, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

2. The transmission control method according to claim 1, characterized in that, Based on the reception of the two downlink channels, one uplink control channel transmission mode is selected from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode, including: When the difference in channel quality between the two downlink channels is less than a first preset threshold, the uplink control channel is selected to be transmitted multiple times in a repeated transmission mode. or, When the ratio of the channel quality of the two downlink channels is within a first preset range, the uplink control channel is selected to be transmitted multiple times in a repeated transmission mode.

3. The transmission control method according to claim 1, characterized in that, Based on the reception of the two downlink channels, one uplink control channel transmission mode is selected from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode, including: When the difference in channel quality between the two downlink channels is greater than or equal to the second preset threshold, the uplink control channel is sent once using the single transmission mode. or, When the ratio of the channel quality of the two downlink channels is not within the second preset range, the uplink control channel is sent once using the single transmission mode.

4. The transmission control method according to claim 3, characterized in that, Selecting to send one uplink control channel using the single-transmission mode, including: The uplink control channel is transmitted on the channel with better quality of the two channels.

5. The transmission control method according to claim 1, characterized in that, The two downlink channels are each configured with different Transmission Configuration Indicator (TCI) states.

6. The transmission control method according to claim 5, characterized in that, The two downlink channels include two physical downlink shared channels, which are configured with different TCI states. Alternatively, the two downlink channels may include two physical downlink control channels, each associated with a different TCI state of its control resource set (CORESET). Alternatively, the two downlink channels may include a physical downlink shared channel and a physical downlink control channel, wherein the TCI state configured for the physical downlink shared channel is different from the TCI state of the CORESET associated with the physical downlink control channel.

7. A transmission control method, characterized in that, Applied to network-side devices, including: Send two downlink channels; The terminal receives an uplink control channel, which is transmitted by the terminal using either a repeated uplink control channel transmission method or a single uplink control channel transmission method. Based on the reception of the two downlink channels, the terminal selects one of the uplink control channel transmission methods: the repeated uplink control channel transmission method or the single uplink control channel transmission method. The uplink control channel repeated transmission mode is a mode in which at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states are transmitted according to the configuration of an uplink control channel resource. Alternatively, the uplink control channel single transmission mode may be a mode in which at least two spatial relationship information, at least two sets of power control parameters, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

8. A transmission control device, characterized in that, Applied to terminals, including: The receiving module is used to receive two downlink channels; The transmission module is used to select an uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode based on the reception of the two downlink channels. The second receiving module is used to receive the configuration of an uplink control channel resource; the configuration of the uplink control channel resource includes: at least two spatial relationship information, and / or at least two sets of power control parameters, and / or at least two TCI states; The uplink control channel is transmitted repeatedly in a manner that transmits information according to at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states in the configuration of the uplink control channel resource. Alternatively, the uplink control channel single transmission mode may be a mode in which at least two spatial relationship information, at least two sets of power control parameters, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

9. The transmission control device according to claim 8, characterized in that, The transmission module includes: The first transmission submodule is used to select the uplink control channel to transmit multiple times when the difference in channel quality between the two downlink channels is less than a first preset threshold. or, The second transmission submodule is used to select the uplink control channel to transmit multiple times when the ratio of the channel quality of the two downlink channels is within a first preset range.

10. The transmission control device according to claim 8, characterized in that, The transmission module includes: The third transmission submodule is used to select the uplink control channel single transmission mode to send an uplink control channel once when the channel quality difference between the two downlink channels is greater than or equal to the second preset threshold. or, The fourth transmission submodule is used to select the uplink control channel single transmission mode to send an uplink control channel once when the ratio of the channel quality of the two downlink channels is not within a second preset range.

11. The transmission control device according to claim 10, characterized in that, The third transmission submodule or the fourth transmission submodule includes: The transmission unit is used to transmit the uplink control channel on the channel with better quality of the two channels.

12. The transmission control device according to claim 8, characterized in that, The two downlink channels are each configured with different Transmission Configuration Indicator (TCI) states.

13. The transmission control device according to claim 8, characterized in that, The uplink control channel is configured with different transmission configuration indicators (TCI) states for each of the multiple transmissions.

14. A transmission control device, characterized in that, Applied to network-side devices, including: The transmitting module is used to transmit data through two downlink channels; The first receiving module is used to receive the uplink control channel, which is transmitted by the terminal using either the uplink control channel repeated transmission mode or the uplink control channel single transmission mode. The terminal selects one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode based on the reception of the two downlink channels. The uplink control channel repeated transmission mode is a mode in which at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states are transmitted according to the configuration of an uplink control channel resource. Alternatively, the uplink control channel single transmission mode may be a mode in which at least two spatial relationship information, at least two sets of power control parameters, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

15. A terminal, characterized in that, include: Transceiver and processor; The transceiver is used to receive two downlink channels; The processor is used to select an uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode based on the reception of the two downlink channels. The transceiver is used to receive the configuration of an uplink control channel resource; The configuration of an uplink control channel resource includes: at least two spatial relationship information, and / or at least two sets of power control parameters, and / or at least two TCI states; The uplink control channel is transmitted repeatedly in a manner that transmits information according to at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states in the configuration of the uplink control channel resource. Alternatively, the uplink control channel single transmission mode may be a mode in which at least two spatial relationship information, at least two sets of power control parameters, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

16. A network-side device, comprising a transceiver and a processor; The transceiver is used to transmit two downlink channels; and The terminal receives an uplink control channel, which is transmitted by the terminal using either a repeated uplink control channel transmission method or a single uplink control channel transmission method. Based on the reception of the two downlink channels, the terminal selects one of the uplink control channel transmission methods: the repeated uplink control channel transmission method or the single uplink control channel transmission method. in, The uplink control channel is transmitted repeatedly in a manner that transmits information according to at least two spatial relationship information, at least two power control parameter sets, or at least two TCI states in the configuration of an uplink control channel resource. Alternatively, the uplink control channel single transmission mode may be a mode in which at least two spatial relationship information, at least two sets of power control parameters, or at least two TCI states are transmitted according to the configuration of the uplink control channel resource.

17. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or instructions are executed by the processor, they implement the steps of the transmission control method as described in any one of claims 1 to 7.

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