Transmission policy configuration method and device, equipment and storage medium

Abstract

This application discloses a method, apparatus, device, and storage medium for configuring a transmission strategy, relating to the field of wireless communication. The method, applied to a terminal device, includes: sending configuration signaling to a first terminal, the configuration signaling including a transmission strategy for an uplink channel; wherein the transmission strategy is used to determine a first transmission resource and a second transmission resource for two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device; the first transmission resource and the second transmission resource have a beam switching time for switching beam directions; the first transmission resource corresponds to the earlier transmission opportunity among two adjacent transmission opportunities for uplink channel transmission; and the second transmission resource corresponds to the later transmission opportunity among two adjacent transmission opportunities for uplink channel transmission. This method can introduce beam switching time into the uplink channel transmission.

Description

Technical Field

[0001] This application relates to the field of wireless communication, and in particular to a method, apparatus, device, and storage medium for configuring a transmission strategy. Background Technology

[0002] 3GPP (3rd Generation Partnership Project) introduced repeat transmission technology based on multiple TRPs (Transmit-Receive Points) in 5G NR (New Radio) systems.

[0003] Based on multiple TRPs, a terminal device can repeatedly transmit uplink channels to multiple TRPs of a single base station. When repeatedly transmitting to TRPs in different directions, the terminal device needs to switch beam directions. Summary of the Invention

[0004] This application provides a method, apparatus, device, and storage medium for configuring a transmission strategy, which can introduce beam switching time in uplink channel transmission. The technical solution is as follows:

[0005] According to one aspect of this application, a method for configuring a transmission policy is provided, applied in a network device, the method comprising:

[0006] Send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel;

[0007] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0008] According to one aspect of this application, a method for configuring a transmission strategy is provided, applied in a terminal device, the method comprising:

[0009] Receive configuration signaling sent by network devices, the configuration signaling including the transmission strategy of the uplink channel;

[0010] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0011] According to one aspect of this application, a configuration apparatus for a transmission strategy is provided, the apparatus comprising:

[0012] The sending module is used to send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel;

[0013] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0014] According to one aspect of this application, a configuration apparatus for a transmission strategy is provided, the apparatus comprising:

[0015] The receiving module is used to receive configuration signaling sent by the network device, wherein the configuration signaling includes the transmission strategy of the uplink channel;

[0016] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0017] According to one aspect of this application, a network device is provided, the network device comprising: a processor and a transceiver connected to the processor; wherein,

[0018] The transceiver is used to send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel;

[0019] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0020] According to one aspect of this application, a terminal device is provided, the terminal device comprising: a processor and a transceiver connected to the processor; wherein,

[0021] The transceiver is used to receive configuration signaling sent by the network device, the configuration signaling including the transmission strategy of the uplink channel;

[0022] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0023] According to one aspect of this application, a computer-readable storage medium is provided, wherein executable instructions are stored therein, the executable instructions being loaded and executed by a processor to implement a configuration method for a transmission strategy as described above.

[0024] According to one aspect of the embodiments of this application, a chip is provided, the chip including programmable logic circuits and / or program instructions, which, when the chip is run on a computer device, are used to implement the configuration method of the transmission strategy described above.

[0025] According to one aspect of this application, a computer program product is provided that, when run on a processor of a computer device, causes the computer device to perform a configuration method for the transmission strategy described above.

[0026] The technical solutions provided in this application have at least the following beneficial effects:

[0027] By configuring two transmission resources with a beam switching time interval for two adjacent repeated transmissions of the uplink channel, the two repeated transmissions use different transmission beams to send to different TRPs of the same base station. By spacing the beam switching time between the two transmission resources, the beam switching required when the terminal device transmits uplink channels to different TRPs using different beam directions is fully considered. The beam switching time is reserved for beam switching, which facilitates the terminal device to realize repeated transmission of uplink channels to multiple TRPs of the same base station. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a system architecture provided in an exemplary embodiment of this application;

[0030] Figure 2 This is a flowchart of a method for configuring a transmission strategy provided in an exemplary embodiment of this application;

[0031] Figure 3 This is a flowchart of a method for configuring a transmission strategy provided in an exemplary embodiment of this application;

[0032] Figure 4 This is a flowchart of a method for configuring a transmission strategy provided in an exemplary embodiment of this application;

[0033] Figure 5 This is a flowchart of a method for configuring a transmission strategy provided in an exemplary embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the PUCCH being repeatedly transmitted between time slots in a transmission strategy configuration method provided by an exemplary embodiment of this application;

[0035] Figure 7 This is a schematic diagram of the PUSCH being repeatedly transmitted between time slots in a transmission strategy configuration method provided by an exemplary embodiment of this application;

[0036] Figure 8 This is a schematic diagram of the PUSCH being repeatedly transmitted between time slots in a transmission strategy configuration method provided by an exemplary embodiment of this application;

[0037] Figure 9 This is a schematic diagram of the PUSCH being repeatedly transmitted between time slots in a transmission strategy configuration method provided by an exemplary embodiment of this application;

[0038] Figure 10 This is a schematic diagram of the PUSCH being repeatedly transmitted between time slots in a transmission strategy configuration method provided by an exemplary embodiment of this application;

[0039] Figure 11 This is a schematic diagram of the PUCCH repeatedly transmitting based on frequency hopping resources within a time slot in a transmission strategy configuration method provided by an exemplary embodiment of this application;

[0040] Figure 12 This is a schematic diagram of the PUCCH repeatedly transmitting based on frequency hopping resources within a time slot in a transmission strategy configuration method provided by an exemplary embodiment of this application;

[0041] Figure 13 This is a structural block diagram of a transmission strategy configuration apparatus provided in an exemplary embodiment of this application;

[0042] Figure 14 This is a structural block diagram of a transmission strategy configuration apparatus provided in an exemplary embodiment of this application;

[0043] Figure 15 This is a schematic diagram of the structure of a communication device provided in an exemplary embodiment of this application. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0045] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0046] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0047] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0048] Please refer to Figure 1 The diagram illustrates a system architecture provided in one embodiment of this application. This system architecture may include: a terminal device 10 and a network device 20.

[0049] The number of terminal devices 10 is typically multiple, and one or more terminal devices 10 can be distributed within the cell managed by each network device 20. Terminal devices 10 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE), mobile stations (MS), etc. For ease of description, in this embodiment, the devices mentioned above are collectively referred to as terminal devices.

[0050] Network device 20 is a device deployed in an access network to provide wireless communication functionality to terminal device 10. Network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the name of the device with network device functionality may differ; for example, in a 5G NR system, it is called gNodeB or gNB. As communication technologies evolve, the name "network device" may change. For ease of description, in this embodiment, the aforementioned device providing wireless communication functionality to terminal device 10 is collectively referred to as a network device.

[0051] For example, a network device 20 deploys multiple TRPs, such as TRP1, TRP2, ..., TRPn. Terminal devices use different transmit beams to repeatedly transmit uplink channels to different TRPs, and network device 20 receives these repeated uplink channel transmissions from the terminal devices through multiple TRPs. For example, because different TRPs are located at different relative positions to the terminal devices, the terminal devices need to use transmit beams with different beam directions to transmit beams to the corresponding TRPs for repeated uplink channel transmissions.

[0052] The "5G NR system" in this disclosure can also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in this disclosure are applicable to 5G NR systems and also to subsequent evolution systems of 5G NR systems.

[0053] Please refer to Figure 2 It illustrates a flowchart of a transmission strategy configuration method provided in one embodiment of this application, which can be applied to Figure 1 In the system architecture shown, the method includes the following steps.

[0054] Step 220: The network device sends a configuration signaling message to the first terminal. The configuration signaling message includes the transmission strategy of the uplink channel.

[0055] The transmission strategy is used to determine the first transmission resource and the second transmission resource for two adjacent repeated transmissions in the uplink channel when different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier transmission opportunity among two adjacent transmission opportunities for uplink channel transmission. The second transmission resource corresponds to the later transmission opportunity among two adjacent transmission opportunities for uplink channel transmission.

[0056] The configuration signaling is used to configure the first terminal to perform repeated transmissions of the same data in the uplink channel. The configuration signaling includes a transmission strategy, which determines the transmission resources used for two adjacent repeated transmissions that require beam direction switching. The first terminal determines the first and second transmission resources used for these two adjacent repeated transmissions according to the transmission strategy in the configuration signaling, and performs the two adjacent repeated transmissions of the same data in the uplink channel on the first and second transmission resources respectively.

[0057] The transmission strategy is used to instruct the first terminal how to determine two transmission resources that are repeatedly transmitted in two adjacent transmissions, so that there is a beam switching time interval between the two transmission resources.

[0058] The first transmission resource corresponds to the earlier of two adjacent transmission opportunities and uses a beam in the TRP direction for uplink transmission. The second transmission resource corresponds to the later of two adjacent transmission opportunities.

[0059] For example, the first transmission resource corresponds to the i-th transmission opportunity, and the second transmission resource corresponds to the (i+1)-th transmission opportunity, where i is a positive integer. The i-th transmission opportunity and the (i+1)-th transmission opportunity represent two sequential transmission opportunities.

[0060] Transmission timing includes transmission resources in the time domain. Transmission timing is at least one symbol in the time domain. For example, the transmission timing in step 220 refers to the actual transmission timing. The actual transmission timing is the actual transmission timing used by the first terminal when it finally performs uplink channel transmission. For example, in contrast to the actual transmission timing, there is also a nominal transmission timing, which is the transmission timing configured by the network device for the first terminal for uplink channel transmission. For example, the first terminal, based on the nominal transmission timing configured by the network device and combined with the beam switching time required for switching beam directions, ultimately determines the actual transmission timing for repeated uplink channel transmission.

[0061] For example, the first terminal determines the first transmission resource and the second transmission resource based on the uplink channel resource configuration. The terminal determines the transmission resource using two methods: deletion and delay. Deletion means that at least one of the first and second transmission resources is determined by deleting the beam switching time. Delay means that the second transmission resource is determined after the beam switching time of the first transmission resource.

[0062] For example, repeated transmission of the same data in the uplink channel includes at least two repeated transmissions. The two adjacent repeated transmissions in step 220 refer to the two adjacent repeated transmissions that require beam direction switching among the at least two repeated transmissions.

[0063] For example, the first terminal needs to perform four repeated transmissions. The first repeated transmission uses the first beam direction to send to the first TRP, the second repeated transmission uses the first beam direction to send to the first TRP, the third repeated transmission uses the second beam direction to send to the second TRP, and the fourth repeated transmission uses the third beam direction to send to the third TRP. Then, the two adjacent repeated transmissions in step 220 can be the second and third repeated transmissions, or the two adjacent repeated transmissions can be the third and fourth repeated transmissions.

[0064] For example, the first transmission resource corresponds to the first transmission timing, the second transmission resource corresponds to the second transmission timing, and there is a time interval between the symbol at the end of the first transmission timing and the symbol at the beginning of the second transmission timing. The time interval is greater than or equal to the beam switching time used to switch the beam direction.

[0065] For example, the data transmitted in the uplink channel can be either uplink data or uplink signaling.

[0066] For example, beam switching time is the time reserved for the first terminal to switch beam directions. The beam switching time is configured or predefined by the network device. The required beam switching time will vary depending on the scenario. For instance, the beam switching time between the same panel (antenna panel) and different panels on the first terminal may be different.

[0067] Step 240: The terminal device receives configuration signaling sent by the network device. The configuration signaling includes the transmission strategy of the uplink channel.

[0068] In summary, the method provided in this embodiment configures two transmission resources with a beam switching time interval for two adjacent repeated transmissions of the uplink channel, so that the two repeated transmissions use different transmission beams to send to different TRPs of the same base station. By spacing the beam switching time between the two transmission resources, the method fully considers that when the terminal device uses different beam directions to transmit uplink channels to different TRPs, it needs to perform beam switching. The method reserves beam switching time, which facilitates the terminal device to realize repeated transmission of uplink channels to multiple TRPs of the same base station.

[0069] By considering the configuration of beam switching time in the uplink enhanced PUCCH / PUSCH transmission scheme based on multiple TRP, a transmission strategy with configurable beam switching time for uplink transmission is supported, thereby optimizing transmission efficiency and reliability under different specific transmission conditions.

[0070] For example, the signaling sent by a network device includes at least the following three scenarios:

[0071] (i) The network device sends the first signaling message, which carries the transmission strategy.

[0072] (ii) The network device sends a first signaling message and a second signaling message. The first signaling message carries the transmission policy, and the second signaling message can dynamically update the transmission policy.

[0073] (iii) The network device sends a first signaling and a second signaling. The first signaling carries multiple candidate transmission policies, and the second signaling indicates the transmission policy from the multiple candidate transmission policies.

[0074] Based on the above three scenarios, the following three exemplary embodiments are given, and the order of these three exemplary embodiments is not important.

[0075] (i) The network device sends the first signaling message, which carries the transmission strategy.

[0076] Please refer to Figure 3 It illustrates a flowchart of a transmission strategy configuration method provided in one embodiment of this application, which can be applied to Figure 1In the system architecture shown, the method includes the following steps.

[0077] Step 221: The network device sends RRC (Radio Resource Control) signaling to the first terminal. The RRC signaling includes the transmission strategy of the uplink channel.

[0078] For example, a network device can carry the uplink channel transmission policy in the RRC signaling, so that after receiving the RRC signaling, the first terminal can determine the transmission resources used for repeated transmission according to the transmission policy in the RRC signaling.

[0079] For example, network devices can configure delayed transmission ("delaying") or dropped transmission ("dropping") in RRC signaling. Exemplary examples show that network devices can also configure other transmission policies. A list of transmission policies will be detailed in the following embodiments.

[0080] Step 241: The first terminal receives RRC signaling sent by the network device. The RRC signaling includes the transmission strategy of the uplink channel.

[0081] In summary, the method provided in this embodiment carries a transmission policy in the RRC signaling. The network device configures the transmission policy to the first terminal through the RRC signaling, so that the first terminal determines the first transmission resource and the second transmission resource used for two adjacent repeated transmissions according to the transmission policy. This ensures that there is a beam switching time interval between the first transmission resource and the second transmission resource, which facilitates the terminal device to realize repeated transmission of uplink channels to multiple TRPs of the same base station.

[0082] (ii) The network device sends a first signaling message and a second signaling message. The first signaling message carries the transmission policy, and the second signaling message can dynamically update the transmission policy.

[0083] Please refer to Figure 4 It illustrates a flowchart of a transmission strategy configuration method provided in one embodiment of this application, which can be applied to Figure 1 In the system architecture shown, the method includes the following steps.

[0084] Step 222: The network device sends a first signaling message and a second signaling message to the first terminal. The first signaling message includes the transmission strategy of the uplink channel, and the second signaling message includes indication information, which is used to dynamically update the transmission strategy.

[0085] For example, the first signaling is RRC signaling, and the second signaling can be at least one of MAC-CE (Media Access Control-Control Element) signaling, DCI (Downlink Control Information) signaling, and packet DCI signaling.

[0086] For example, the first signaling includes a first transmission strategy, and the second signaling includes a second transmission strategy. The first terminal receives the first signaling and determines the first and second transmission resources according to the first transmission strategy. When the first terminal receives the second signaling, it replaces the first transmission strategy with the second transmission strategy and determines the first and second transmission resources according to the second transmission strategy.

[0087] For example, when the second signaling is DCI signaling, the indication information is located on a newly defined DCI field in the DCI signaling; or, the indication information is located on an unused DCI bit or a DCI reserved codepoint in the DCI signaling.

[0088] For example, a new DCI field can be defined in DCI signaling to carry indication information, which includes transmission policies.

[0089] For example, in an existing DCI domain of DCI signaling, unused DCI bits or reserved DCI code points carry indication information, which includes transmission strategies. For instance, a DCI reserved code point could be a TPMI reserved codepoint.

[0090] For example, when the second signaling is packet DCI signaling, the indication information is located on a newly defined DCI bit in the DCI field corresponding to the first terminal in the packet DCI signaling; or, the indication information is located on an unused DCI code point or a newly added DCI code point in the DCI field corresponding to the first terminal in the packet DCI signaling.

[0091] For example, packet DCI signaling includes a DCI field corresponding to the first terminal and a DCI field corresponding to the second terminal. A new DCI bit is defined in the DCI field corresponding to the first terminal to carry indication information.

[0092] For example, in the DCI domain corresponding to the first terminal, unused code points may carry indication information; or, in the DCI domain corresponding to the first terminal, new DCI code points may be added to carry indication information.

[0093] Step 242: The first terminal receives a first signaling and a second signaling sent by the network device. The first signaling includes the transmission strategy of the uplink channel, and the second signaling includes indication information, which is used to dynamically update the transmission strategy.

[0094] In summary, the method provided in this embodiment carries the transmission strategy in the first signaling and dynamically updates the transmission strategy in the second signaling, so that the first terminal determines the first transmission resource and the second transmission resource used for two adjacent repeated transmissions according to the transmission strategy, so that there is a beam switching time interval between the first transmission resource and the second transmission resource, which facilitates the terminal device to realize repeated transmission of uplink channels to multiple TRPs of the same base station.

[0095] (iii) The network device sends a first signaling and a second signaling. The first signaling carries multiple candidate transmission policies, and the second signaling indicates the transmission policy from the multiple candidate transmission policies.

[0096] Please refer to Figure 5 It illustrates a flowchart of a transmission strategy configuration method provided in one embodiment of this application, which can be applied to Figure 1 In the system architecture shown, the method includes the following steps.

[0097] Step 223: The network device sends a first signaling and a second signaling to the first terminal. The first signaling includes at least one candidate transmission strategy for the uplink channel, and the second signaling includes indication information for activating the first transmission strategy from at least one candidate transmission strategy.

[0098] The first signaling carries multiple candidate transmission strategies, and the second signaling indicates the final transmission strategy to be used from among these candidate strategies. For example, the second signaling activates one of the candidate transmission strategies as the first transmission strategy, enabling the first terminal to determine the transmission resources used for two consecutive repeated transmissions based on the first transmission strategy. The second signaling may also carry indication information including a deactivation instruction to deactivate a specific transmission strategy.

[0099] For example, the first signaling also includes a default active transport policy; the default active transport policy is one of at least one candidate transport policy.

[0100] If the first terminal does not receive the second signaling, or if the DCI field containing the indication information in the second signaling is lost, the first terminal can directly adopt the default active transmission strategy and determine the transmission resources according to the transmission strategy.

[0101] For example, the first signaling is RRC signaling, and the second signaling can be at least one of MAC-CE signaling, DCI signaling, and packet DCI signaling.

[0102] For example, when the second signaling is DCI signaling, the indication information is located on a newly defined DCI field in the DCI signaling; or, the indication information is located on an unused DCI bit or a DCI reserved codepoint in the DCI signaling.

[0103] For example, a new DCI field is defined in the DCI signaling to carry indication information. The indication information includes activation instructions or deactivation instructions. The activation instructions are used to activate a candidate transmission policy as the first transmission policy, and the deactivation instructions are used to deactivate the already activated transmission policy.

[0104] For example, in an existing DCI field of DCI signaling, unused DCI bits or reserved DCI code points carry indication information. For instance, a DCI reserved code point could be a TPMI reserved codepoint.

[0105] For example, when the second signaling is packet DCI signaling, the indication information is located on a newly defined DCI bit in the DCI field corresponding to the first terminal in the packet DCI signaling; or, the indication information is located on an unused DCI code point or a newly added DCI code point in the DCI field corresponding to the first terminal in the packet DCI signaling.

[0106] For example, packet DCI signaling includes a DCI field corresponding to the first terminal and a DCI field corresponding to the second terminal. A new DCI bit is defined in the DCI field corresponding to the first terminal to carry indication information.

[0107] For example, in the DCI domain corresponding to the first terminal, unused code points may carry indication information; or, in the DCI domain corresponding to the first terminal, new DCI code points may be added to carry indication information.

[0108] Step 243: The first terminal receives a first signaling and a second signaling sent by the network device. The first signaling includes at least one candidate transmission strategy for the uplink channel, and the second signaling includes indication information for activating the first transmission strategy from at least one candidate transmission strategy.

[0109] In summary, the method provided in this embodiment carries multiple candidate transmission strategies in the first signaling and indicates one of the candidate transmission strategies as the transmission strategy in the second signaling. This enables the first terminal to determine the first and second transmission resources used for two adjacent repeated transmissions according to the transmission strategy, so that there is a beam switching time interval between the first and second transmission resources. This facilitates the terminal device to realize repeated transmissions of uplink channels to multiple TRPs of the same base station.

[0110] For example, the uplink channel can be PUCCH (Physical Uplink Control Channel) or PUSCH (Physical Uplink Shared Channel).

[0111] The uplink channel enhancement scheme based on multiple TRPs is mainly based on the PUCCH / PUSCH repetitive transmission scheme of Release 16 (R16). First, we introduce the uplink transmission scheme of R16, namely, PUCCH only supports repetitive transmission within time slots, while PUSCH supports repetitive transmission type A within time slots and repetitive transmission type B that can be transmitted across time slots.

[0112] I. Repeated transmission within the PUCCH time slot.

[0113] In Release 15 / 16, considering uplink coverage issues, a mechanism was introduced for PUCCH (corresponding to PUCCH formats 1 / 3 / 4) to repeatedly transmit across multiple slots. Different PUCCH resources are transmitted with the same transmission symbol length at different transmission times within each slot, such as... Figure 6 As shown. A PUCCH retransmission can only use one PUCCH resource. This PUCCH resource is configured with a beam direction spatialRelationInfo and is applied to all transmission opportunities. Network devices configure the corresponding number of retransmissions supported for the PUCCH format through RRC (Radio Resource Control) higher-layer signaling. The range of the indicated number of retransmissions is defined as {1, 2, 4, 8}. Different PUCCH resources may correspond to different PUCCH formats.

[0114] 2. Repeated transmission between PUSCH slots.

[0115] The two methods for enhancing uplink PUSCH time-domain repetition transmission are: repetition type A transmission method and repetition type B transmission method introduced in R16.

[0116] 1) PUSCH repeat type A transmission mode.

[0117] R16 slot-level aggregation PUSCH transmission is suitable for applications with very low latency and high reliability requirements. A PUSCH is transmitted over K consecutive time slots, i.e., K transmission opportunities, starting from the S-th symbol in the initial time slot. Each transmission opportunity lasts for L symbols, and S+L does not exceed the time slot boundary. For example, ... Figure 7 As shown, S equals 1 and L equals 4. The first terminal performs the first repeated transmission from the first symbol to the fourth symbol in the first time slot, and performs the second repeated transmission from the first symbol to the fourth symbol in the second time slot.

[0118] 2) PUSCH repeat type B transmission mode.

[0119] To reduce latency and improve reliability, Release 16 supports a PUSCH repetition scheme based on mini-slots (also known as "sub-slots"), and allows PUSCH transmission across time slots to further reduce latency. In the time domain, a PUSCH begins transmission on the S-th symbol in the initial time slot, and K nominal repetitions are sent consecutively. Each repetition occupies L symbols back-to-back, and the transmission of S+L symbols can cross time slot boundaries.

[0120] like Figure 8 As shown, when S equals 1 and L equals 4, the first terminal is configured to perform two repeated transmissions of the uplink channel. The first terminal performs the first repeated transmission in the first to fourth symbols of the first time slot, and the second repeated transmission in the fifth to eighth symbols of the first time slot.

[0121] If a transmission occurs at a time slot boundary, the transmission will be re-segmented.

[0122] like Figure 9 As shown, when S equals 1 and L equals 4, the first terminal is configured to perform four uplink channel repetitions. The first terminal performs the first repetition from the 1st to the 4th symbol of the first time slot, and the second repetition from the 5th to the 8th symbol of the first time slot. Since, according to the configuration information, the four symbols of the third repetition cross the time slot boundary, the third repetition is split into two repetitions: the third repetition occurs from the 9th to the 10th symbol of the first time slot, and the fourth repetition occurs from the 1st to the 2nd symbol of the second time slot. The fifth repetition occurs from the 3rd to the 7th symbol of the second time slot. That is, the first terminal actually performs five repetitions, sending the same data in each repetition.

[0123] like Figure 10 As shown, when S equals 1 and L equals 14, the first terminal is configured to perform one uplink channel retransmission. Since a time slot is 10 symbols long, but each transmission requires 14 symbols, the 14 symbols of the first retransmission will cross the time slot boundary, splitting the first retransmission into two retransmissions. The first retransmission occurs from the 1st to the 10th symbol of the first time slot, and the second retransmission occurs from the 1st to the 4th symbol of the second time slot. That is, the first terminal actually performs two retransmissions, sending the same data in each retransmission.

[0124] For the entire transmission, time slot L*K represents the time-domain resource window length for PUSCH transmission. DL (Downlink) symbols are discarded and not used for PUSCH transmission. The base station can configure SFI (Short Elementary File Identifier) ​​semi-static Flexible symbols as dynamic UL (Uplink) symbols or dynamic DL symbols. Therefore, semi-static Flexible symbols may be available or unavailable for PUSCH. When unavailable symbols exist, the first terminal needs to discard them and then transmit on the remaining available symbols. The base station can also configure invalid symbol patterns that are unusable by the UE (User Equipment) via signaling; that is, the UE will not transmit uplink data on invalid symbols indicated by the signaling.

[0125] In Release 16 (R16), the primary standardization defined an enhanced transmission scheme based on multi-point cooperative transmission for downlink PDSCH. The application of multiple TRPs / panels at base stations utilizes cooperation between multiple TRPs or panels to transmit / receive the channel from multiple angles and multiple beams. This better overcomes various obstruction / blocking effects, ensuring the robustness of link connections and is suitable for improving transmission quality and meeting reliability requirements in URLLC (Ultra-Reliable Low-Latency Communication) services. Release 17 requires further enhancement of uplink transmission using multi-TRP technology, including the uplink control channel PUCCH and the uplink data channel PUSCH. In the R17 multi-TRP enhancement, PUCCH / PUSCH supports cooperative transmission of the same transport block (TB) in different TRP directions at different transmission occupancy (TO) times under the aforementioned transmission modes, further applying spatial multiplexing transmission to improve transmission reliability.

[0126] For PUCCH channel transmission, possible solutions for R17 enhancement are:

[0127] I. Repeated transmission between PUCCH slots.

[0128] Similar to the TDM (Time Division Multiplexing) repetitive transmission mode of R15 / R16, it enables time-division cooperative transmission in multiple time slots in multiple beam directions facing multiple TRPs.

[0129] II. Repeated transmission within the PUCCH slot.

[0130] That is, time-division joint transmission in multiple beam directions facing multiple TRPs within a time slot.

[0131] 1) Transmission scheme based on sub-slots within a time slot:

[0132] This means that PUCCH is repeatedly transmitted within a time slot, in units of sub-slots. For example, ... Figure 11 As shown, two uplink channel repetitions are performed within a time slot. On two physical resource blocks in the same frequency domain within the time slot, the same data is sent to different TRPs using the first beam 301 and the second beam 302, respectively.

[0133] 2) Transmission scheme based on frequency hopping transmission within time slots:

[0134] That is, within a PUCCH resource, different beams are transmitted on different symbol groups (or "material resource blocks") corresponding to consecutive hops within a time slot. For example, such as Figure 12 As shown, two uplink channel repetitions are performed within a time slot. On two physical resource blocks in different frequency domains within the time slot, the same data is sent to different TRPs using the first beam 301 and the second beam 302, respectively.

[0135] Among them, there are several mapping schemes to consider regarding the mapping relationship between the beam transmission direction of PUCCH / PUSCH sent by the first terminal to different TRPs and different transmission timings. Three typical schemes are given below:

[0136] Option a: Periodic mapping. Two beam directions are sequentially and cyclically mapped to multiple configured transmission opportunities. For example, when performing 4 repeated transmissions, the beam direction mapping pattern can be #1#2#1#2, where #1 corresponds to the first beam direction and #2 corresponds to the second beam direction.

[0137] Option b: Continuous mapping. Two beam directions are continuously and cyclically mapped to multiple configured transmission opportunities. For example, when performing 4 repeated transmissions, the beam direction mapping pattern can be #1#1#2#2; for more than 4 repeated transmissions, the pattern is repeated. For example, for 8 repeated transmissions, the beam direction mapping pattern can be #1#1#2#2#1#1#2#2.

[0138] Option c: Half-mapping. Two beam directions are continuously mapped to multiple configured transmission opportunities. For example, when performing 8 repeated transmissions, the beam direction mapping pattern can be #1#1#1#1#2#2#2#2.

[0139] The transmission strategy includes one of the following: a strategy that removes beam switching time or a strategy that delays beam switching time.

[0140] For example, the strategy of removing beam switching time means that at least one of the first and second transmission resources is determined by removing beam switching time. The strategy of delaying beam switching time means that the second transmission resource is determined after the beam switching time is delayed from the first transmission resource.

[0141] Deletion can be understood as removing the beam-switching time from the nominal transmission opportunities configured by the network device for two repeated transmissions, thereby determining the two transmission resources. Delay can be understood as delaying the beam-switching time by adding a delay to the nominal transmission opportunity corresponding to the later repeated transmission, thus obtaining the actual transmission opportunity.

[0142] Combining the above-mentioned repetitive transmission method of PUCCH within a time slot, and the repetitive type B transmission method of PUSCH, at least the following twelve transmission strategies can be obtained:

[0143] (i) For repeated transmission of PUCCH based on sub-time slots within a time slot, the transmission resources are determined by deletion.

[0144] It is applied to PUCCH repetition transmission based on sub-slot within a time slot; the uplink channel resource configuration includes: two consecutive sub-slots configured for two adjacent repetition transmissions; the beam switching time is X symbols, and the sub-slot includes M symbols, where X and M are positive integers, and X is less than or equal to M.

[0145] The first terminal determines the M symbols of the first sub-time slot as the first transmission resource; and determines the last (MX) symbols of the second sub-time slot as the second transmission resource.

[0146] (ii) For the repeated transmission of PUCCH based on frequency hopping resources within the time slot, the transmission resources are determined by deleting the beam switching time from the transmission resources of the two repeated transmissions and then distributing them evenly.

[0147] It is applied to the repeated transmission of PUCCH within the same PUCCH resource in the time slot; the resource configuration of the uplink channel includes: N symbols configured for two adjacent repeated transmissions for the same PUCCH resource, with a beam switching time of X symbols, where X is a positive integer, N is an integer greater than 1, and X is less than or equal to N.

[0148] The first terminal calculates (NX) / 2 and rounds it down to get N1; it calculates (NX) / 2 and rounds it up to get N2; the first N1 symbols out of the N symbols are determined as the first transmission resource; the last N2 symbols out of the N symbols are determined as the second transmission resource.

[0149] (iii) For the repeated transmission of PUCCH based on frequency hopping resources within the time slot, the transmission resources are determined by deleting the beam switching time from the transmission resources corresponding to the second repeated transmission.

[0150] It is applied to the repeated transmission of PUCCH within the same PUCCH resource in the time slot; the resource configuration of the uplink channel includes: N symbols configured for two adjacent repeated transmissions for the same PUCCH resource, the beam switching time is X symbols, X is a positive integer, N is an integer greater than 1, and X is less than N.

[0151] The first terminal calculates N / 2 and rounds it down to get N3; it calculates N / 2 and rounds it up to get N4; the first N3 symbols out of the N symbols are determined as the first transmission resource; the last (N4-X) symbols out of the N symbols are determined as the second transmission resource.

[0152] (iv) For the repeated transmission of PUCCH based on frequency hopping resources within the time slot, the transmission resources are determined by deleting the beam switching time from the remaining available transmission resources within the time slot and then distributing them evenly.

[0153] It is applied to the repeated transmission of PUCCH within the same PUCCH resource in a time slot; the resource configuration of the uplink channel includes: N symbols configured for two adjacent repeated transmissions for the same PUCCH resource, and there are Y symbols between the last symbol of the N symbols and the first symbol of the next time slot; the beam switching time is X symbols, where X and Y are positive integers and N is an integer greater than 1.

[0154] The first terminal calculates (Y+NX) / 2 and rounds it down to get N5; it calculates (Y+NX) / 2 and rounds it up to get N6; it determines the first N5 symbols out of (N+Y) symbols as the first transmission resource; and it determines the last N6 symbols out of (N+Y) symbols as the second transmission resource.

[0155] (v) For repeated transmission of PUCCH based on frequency hopping resources within a time slot, the transmission resources are determined by deleting the beam switching time from the transmission resources corresponding to the second repeated transmission from the remaining available transmission resources within the time slot.

[0156] It is applied to the repeated transmission of PUCCH within the same PUCCH resource in a time slot; the resource configuration of the uplink channel includes: N symbols configured for two adjacent repeated transmissions for the same PUCCH resource, and there are Y symbols between the last symbol of the N symbols and the first symbol of the next time slot; the beam switching time is X symbols, where X and Y are positive integers and N is an integer greater than 1.

[0157] The first terminal calculates (Y+N) / 2 and rounds down to get N7; it calculates (Y+N) / 2 and rounds up to get N8; it determines the first N7 symbols out of (N+Y) symbols as the first transmission resource; and it determines the last (N8-X) symbols out of (N+Y) symbols as the second transmission resource.

[0158] (vi) For repeated transmission of PUSCH in time slots of type B, the transmission resources are determined by deleting the beam switching time from the transmission resources of the two repeated transmissions and then distributing them evenly.

[0159] It is applied to PUSCH repetitive transmission that can be transmitted across time slots (or "cross-time slot transmission") based on nominal transmission timing configuration; the uplink channel resource configuration includes: two consecutive nominal transmission timings configured for two adjacent repetitive transmissions, each nominal transmission timing occupies A symbols of time domain resources, and the beam switching time is X symbols, where X and A are positive integers.

[0160] The first terminal determines the A symbols of the earlier nominal transmission time among the two nominal transmission times as the first transmission resource; and determines the last (AX) symbols of the later nominal transmission time among the two nominal transmission times as the second transmission resource.

[0161] (vii) For the repeated transmission of PUCCH based on sub-time slots within a time slot, the transmission resources are determined by delaying by one sub-time slot.

[0162] It is applied to PUCCH repetition transmission based on sub-time slots within a time slot; the resource configuration of the uplink channel includes: two consecutive sub-time slots are configured for two adjacent repetition transmissions; the beam switching time is X symbols, the sub-time slot includes M symbols, X and M are positive integers, and X is less than or equal to M; the starting symbol configured for two adjacent repetition transmissions is the Sth symbol in the time slot, where S is a positive integer.

[0163] The first terminal will determine the first sub-time slot starting from the Sth symbol as the first transmission resource; and will determine the second sub-time slot starting from the (S+2M)th symbol as the second transmission resource. The (S+2M)th symbol is obtained by delaying the first transmission resource by one sub-time slot.

[0164] (viii) For the repeated transmission of PUCCH based on sub-time slots within a time slot, the transmission resources are determined by delaying the beam switching time.

[0165] It is applied to PUCCH repetition transmission based on sub-time slots within a time slot; the resource configuration of the uplink channel includes: two consecutive sub-time slots are configured for two adjacent repetition transmissions; the beam switching time is X symbols, the sub-time slot includes M symbols, X and M are positive integers, and X is less than or equal to M; the starting symbol configured for two adjacent repetition transmissions is the Sth symbol in the time slot, where S is a positive integer.

[0166] The first terminal designates the first sub-time slot, starting from the S-th symbol, as the first transmission resource; and the second sub-time slot, starting from the (S+M+X)-th symbol, as the second transmission resource. The (S+M+X)-th symbol is obtained by delaying the first transmission resource by X symbols. In response to the last Z symbols of the second sub-time slot, starting from the (S+M+X)-th symbol, exceeding the time slot boundary, the first terminal designates the first (MZ) symbols of the second sub-time slot as the second transmission opportunity, where Z is a positive integer less than M.

[0167] (ix) For repeated transmission of PUCCH based on frequency hopping resources within a time slot, the transmission resources are determined by delaying the transmission resources corresponding to the second repeated transmission.

[0168] It is applied to repeated PUCCH transmissions within the same PUCCH resource in a time slot; the uplink channel resource configuration includes: N symbols configured for two adjacent repeated transmissions for the same PUCCH resource, and there are Y symbols between the last symbol of the N symbols and the first symbol of the next time slot; the beam switching time is X symbols, where X, Y, and N are positive integers, and X is less than or equal to Y; the starting symbol configured for two adjacent repeated transmissions is the Sth symbol in the time slot, where S is a positive integer.

[0169] The first terminal calculates N / 2 and rounds it down to get N3; it calculates N / 2 and rounds it up to get N4; it determines the N3 symbols starting from the S-th symbol as the first transmission resource; it determines the N4 symbols starting from the (S+N3+X)-th symbol as the second transmission resource, where the (S+N3+X)-th symbol is obtained by delaying the first transmission resource by X symbols.

[0170] (x) For repeated transmission of PUCCH based on frequency hopping resources within a time slot, the transmission resources are determined by delaying the transmission resources corresponding to the second repeated transmission and deleting the transmission resources that exceed the time slot boundary.

[0171] It is applied to repeated PUCCH transmissions within the same PUCCH resource in a time slot; the uplink channel resource configuration includes: N symbols configured for two adjacent repeated transmissions for the same PUCCH resource, and there are Y symbols between the last symbol of the N symbols and the first symbol of the next time slot; the beam switching time is X symbols, where X, Y, and N are positive integers, and X is greater than or equal to Y; the starting symbol configured for two adjacent repeated transmissions is the Sth symbol in the time slot, where S is a positive integer.

[0172] The first terminal calculates N / 2 and rounds it down to get N3; it calculates N / 2 and rounds it up to get N4; it determines the N3 symbols starting from the S-th symbol as the first transmission resource; it determines the (N4-(XY)) symbols starting from the (S+N3+X)-th symbol as the second transmission resource, where the (S+N3+X)-th symbol is obtained by delaying the first transmission resource by X symbols.

[0173] (xi) For repeated transmission of PUSCH in time slots of type B, the transmission resources are determined by delaying the transmission resources corresponding to the second repeated transmission.

[0174] It is applied to PUSCH repetition transmission that can be transmitted across time slots (or "cross-time slot transmission") based on nominal transmission timing configuration; the uplink channel resource configuration includes: two consecutive nominal transmission timings configured for two adjacent repetition transmissions, each nominal transmission timing occupying A symbols of time domain resources, and beam switching time of X symbols, where X and A are positive integers; the starting symbol of two adjacent repetition transmissions is the Sth symbol in the time slot, where S is a positive integer.

[0175] The first terminal determines the first transmission resource as A symbols starting from the S-th symbol; and determines the second transmission resource as A symbols starting from the (S+A+X)-th symbol, where the (S+A+X)-th symbol is obtained by delaying the first transmission resource by X symbols.

[0176] (xii) The transmission resources are determined by configuring the beam switching time as an invalid symbol.

[0177] The network device sends uplink channel resource configuration to the first terminal. The first and second transmission resources are determined based on the resource configuration, which includes configuring beam switching time as invalid symbols. The first and second transmission resources are determined from the valid symbols indicated by the resource configuration. The first terminal determines the first and second transmission resources based on the uplink channel resource configuration.

[0178] The order of the twelve transmission strategies mentioned above is not significant.

[0179] For example, based on different application scenarios, network devices can configure different transmission strategies for the first terminal.

[0180] For example, in response to the number of symbols in a sub-slot used for a single repetitive transmission in the PUCCH being less than a threshold, the network device sends a first configuration signaling to the first terminal. This first configuration signaling includes the uplink channel transmission strategy, which is a strategy of delaying beam switching time. When the number of symbols in a sub-slot is low, using a delayed transmission strategy can ensure the reliability of uplink data transmission.

[0181] For example, in response to a PUCCH where the number of symbols in a sub-slot used for a single repeated transmission exceeds a threshold, the network device sends a second configuration signaling message to the first terminal. This second configuration signaling message includes the uplink channel transmission strategy, which is a strategy to delete beam switching time. When the number of symbols in a sub-slot is large, using the deletion transmission strategy can reduce uplink transmission latency.

[0182] For example, in response to a latency requirement in the PUSCH exceeding a threshold, the network device sends a second configuration signaling to the first terminal. This second configuration signaling includes the uplink channel transmission strategy, which is a strategy to delete beam switching time. When uplink transmission has high latency requirements, using the deletion transmission strategy can reduce uplink transmission latency.

[0183] For example, in response to a latency requirement in the PUSCH being lower than a threshold, the network device sends a first configuration signaling to the first terminal. This first configuration signaling includes the uplink channel transmission strategy, which is a strategy to delay beam switching time. When the uplink transmission has low latency requirements, using a delayed transmission strategy can improve the reliability of uplink data transmission.

[0184] For example, network devices can also configure different transmission strategies for the first terminal based on other scenarios or requirements. For instance, based on various scenarios such as the specific transmission method, time slot resource allocation, service latency requirements, channel performance requirements, and beam mapping methods, network devices can configure appropriate transmission strategies to perform repeated transmissions on the uplink channel.

[0185] Figure 13 This illustration shows a structural block diagram of a transmission strategy configuration apparatus provided in an exemplary embodiment of this application. The apparatus can be implemented as a network device, or as part of a network device. The apparatus includes:

[0186] The sending module 401 is used to send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel;

[0187] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0188] In an optional embodiment, the transmitting module 401 is configured to transmit Radio Resource Control (RRC) signaling to the first terminal, the RRC signaling including the transmission strategy of the uplink channel.

[0189] In an optional embodiment, the sending module 401 is configured to send a first signaling and a second signaling to the first terminal, wherein the first signaling includes the transmission strategy of the uplink channel, and the second signaling includes indication information, the indication information being used to dynamically update the transmission strategy.

[0190] In an optional embodiment, the sending module 401 is configured to send a first signaling and a second signaling to the first terminal. The first signaling includes at least one candidate transmission strategy for the uplink channel, and the second signaling includes indication information for activating the first transmission strategy from the at least one candidate transmission strategy.

[0191] In an optional embodiment, the first signaling further includes a default active transmission policy; the default active transmission policy is one of the at least one candidate transmission policy.

[0192] In an optional embodiment, the first signaling is RRC signaling; the second signaling is at least one of Media Access Control-Control Unit (MAC-CE) signaling, Downlink Control Information (DCI) signaling, and Packet DCI signaling.

[0193] In an optional embodiment, the second signaling is DCI signaling, and the indication information is located on a newly defined DCI field in the DCI signaling.

[0194] In an optional embodiment, the second signaling is DCI signaling, and the indication information is located on unused DCI bits or DCI reserved code points in the DCI signaling.

[0195] In an optional embodiment, the second signaling is packet DCI signaling, and the indication information is located on a newly defined DCI bit in the DCI field corresponding to the first terminal in the packet DCI signaling.

[0196] In an optional embodiment, the second signaling is packet DCI signaling, and the indication information is located on unused DCI code points or newly added DCI code points in the DCI field corresponding to the first terminal in the packet DCI signaling.

[0197] In an optional embodiment, the transmission strategy includes one of a strategy of deleting the beam switching time and a strategy of delaying the beam switching time.

[0198] Figure 14 This illustration shows a structural block diagram of a transmission strategy configuration apparatus provided in an exemplary embodiment of this application. The apparatus can be implemented as a terminal device, or as part of a terminal device. The apparatus includes:

[0199] The receiving module 402 is used to receive configuration signaling sent by the network device, wherein the configuration signaling includes the transmission strategy of the uplink channel;

[0200] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0201] In an optional embodiment, the receiving module 402 is configured to receive Radio Resource Control (RRC) signaling sent by the network device, the RRC signaling including the transmission strategy of the uplink channel.

[0202] In an optional embodiment, the receiving module 402 is configured to receive a first signaling and a second signaling sent by the network device, wherein the first signaling includes the transmission strategy of the uplink channel, and the second signaling includes indication information used to dynamically update the transmission strategy.

[0203] In an optional embodiment, the receiving module 402 is configured to receive a first signaling and a second signaling sent by the network device, the first signaling including at least one candidate transmission strategy for the uplink channel, and the second signaling including indication information for activating the first transmission strategy from the at least one candidate transmission strategy.

[0204] In an optional embodiment, the first signaling further includes a default active transmission policy; the default active transmission policy is one of the at least one candidate transmission policy.

[0205] In an optional embodiment, the first signaling is RRC signaling; the second signaling is at least one of Media Access Control-Control Unit (MAC-CE) signaling, Downlink Control Information (DCI) signaling, and Packet DCI signaling.

[0206] In an optional embodiment, the second signaling is DCI signaling, and the indication information is located on a newly defined DCI field in the DCI signaling.

[0207] In an optional embodiment, the second signaling is DCI signaling, and the indication information is located on unused DCI bits or DCI reserved code points in the DCI signaling.

[0208] In an optional embodiment, the second signaling is packet DCI signaling, and the indication information is located on a newly defined DCI bit in the DCI field corresponding to the first terminal in the packet DCI signaling.

[0209] In an optional embodiment, the second signaling is packet DCI signaling, and the indication information is located on unused DCI code points or newly added DCI code points in the DCI field corresponding to the first terminal in the packet DCI signaling.

[0210] In an optional embodiment, the transmission strategy includes one of a strategy of deleting the beam switching time and a strategy of delaying the beam switching time.

[0211] Figure 15 The diagram shows a schematic representation of a communication device (terminal device or network device) provided in an exemplary embodiment of this application. The communication device includes a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.

[0212] The processor 101 includes one or more processing cores. The processor 101 executes various functional applications and information processing by running software programs and modules.

[0213] The receiver 102 and the transmitter 103 can be implemented as a communication component, which can be a communication chip.

[0214] The memory 104 is connected to the processor 101 via the bus 105.

[0215] The memory 104 can be used to store at least one instruction, and the processor 101 can execute the at least one instruction to implement the various steps in the above method embodiments.

[0216] Furthermore, the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic storage, flash memory, and programmable read-only memory (PROM).

[0217] When the communication device is implemented as a terminal device, the processor and transceiver in the communication device involved in the embodiments of this application can execute the steps of any of the above methods performed by the terminal device, which will not be repeated here.

[0218] In one possible implementation, when the communication device is implemented as a terminal device,

[0219] The transceiver is used to receive configuration signaling sent by the network device, the configuration signaling including the transmission strategy of the uplink channel;

[0220] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0221] When the communication device is implemented as a network device, the processor and transceiver in the communication device involved in the embodiments of this application can execute the steps of any of the above methods performed by the network device, which will not be repeated here.

[0222] In one possible implementation, when the communication device is implemented as a network device,

[0223] The transceiver is used to send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel;

[0224] The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission.

[0225] In an exemplary embodiment, a computer-readable storage medium is also provided, which stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the configuration method of the transmission strategy executed by the communication device provided in the above-described method embodiments.

[0226] In an exemplary embodiment, a chip is also provided, the chip including programmable logic circuitry and / or program instructions, which, when the chip is run on a computer device, are used to implement the configuration method of the transmission strategy described above.

[0227] In an exemplary embodiment, a computer program product is also provided, which, when run on a processor of a computer device, causes the computer device to perform the configuration method of the transmission strategy described above.

[0228] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0229] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for configuring a transmission strategy, characterized in that, When applied in network devices, the method includes: Send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel; The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission. The transmission strategy is related to the number of symbols in the sub-slots used for one repeated transmission in the Physical Uplink Control Channel (PUCCH) or the delay requirements in the Physical Uplink Shared Channel (PUSCH). If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is less than a threshold or the delay requirement in the PUSCH is less than a threshold, the transmission strategy is a strategy of delaying beam switching time. If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is greater than a threshold or the delay requirement in the PUSCH is higher than a threshold, the transmission strategy is to delete the beam switching time.

2. The method according to claim 1, characterized in that, Sending configuration signaling to the first terminal includes: A Radio Resource Control (RRC) signaling message is sent to the first terminal, the RRC signaling message including the transmission strategy of the uplink channel.

3. The method according to claim 1, characterized in that, Sending configuration signaling to the first terminal includes: Send a first signaling message and a second signaling message to the first terminal. The first signaling message includes the transmission policy of the uplink channel, and the second signaling message includes indication information, which is used to dynamically update the transmission policy.

4. The method according to claim 1, characterized in that, Sending configuration signaling to the first terminal includes: Send a first signaling and a second signaling to the first terminal. The first signaling includes at least one candidate transmission strategy for the uplink channel, and the second signaling includes indication information for activating a first transmission strategy from the at least one candidate transmission strategy.

5. The method according to claim 4, characterized in that, The first signaling also includes a default active transmission policy; the default active transmission policy is one of the at least one candidate transmission policy.

6. The method according to any one of claims 3 to 5, characterized in that, The first signaling is RRC signaling; the second signaling is at least one of Media Access Control-Control Unit (MAC-CE) signaling, Downlink Control Information (DCI) signaling, and Packet DCI signaling.

7. The method according to claim 6, characterized in that, The second signaling is DCI signaling, and the indication information is located on a newly defined DCI field in the DCI signaling.

8. The method according to claim 6, characterized in that, The second signaling is DCI signaling, and the indication information is located on unused DCI bits or DCI reserved code points in the DCI signaling.

9. The method according to claim 6, characterized in that, The second signaling is packet DCI signaling, and the indication information is located on a newly defined DCI bit in the DCI field corresponding to the first terminal in the packet DCI signaling.

10. The method according to claim 6, characterized in that, The second signaling is packet DCI signaling, and the indication information is located on unused DCI code points or newly added DCI code points in the DCI field corresponding to the first terminal in the packet DCI signaling.

11. A method for configuring a transmission strategy, characterized in that, Applied to a first terminal, the method includes: Receive configuration signaling sent by network devices, the configuration signaling including the transmission strategy of the uplink channel; The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission. The transmission strategy is related to the number of symbols in the sub-slots used for one repeated transmission in the Physical Uplink Control Channel (PUCCH) or the delay requirements in the Physical Uplink Shared Channel (PUSCH). If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is less than a threshold or the delay requirement in the PUSCH is less than a threshold, the transmission strategy is a strategy of delaying beam switching time. If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is greater than a threshold or the delay requirement in the PUSCH is higher than a threshold, the transmission strategy is to delete the beam switching time.

12. The method according to claim 11, characterized in that, The configuration signaling sent by the receiving network device includes: The network device receives Radio Resource Control (RRC) signaling, which includes the transmission strategy of the uplink channel.

13. The method according to claim 11, characterized in that, The configuration signaling sent by the receiving network device includes: The network device receives a first signaling and a second signaling, wherein the first signaling includes the transmission policy of the uplink channel, and the second signaling includes indication information for dynamically updating the transmission policy.

14. The method according to claim 11, characterized in that, The configuration signaling sent by the receiving network device includes: The network device receives a first signaling and a second signaling, the first signaling including at least one candidate transmission strategy for the uplink channel, and the second signaling including indication information for activating a first transmission strategy from the at least one candidate transmission strategy.

15. The method according to claim 14, characterized in that, The first signaling also includes a default active transmission policy; the default active transmission policy is one of the at least one candidate transmission policy.

16. The method according to any one of claims 13 to 15, characterized in that, The first signaling is RRC signaling; the second signaling is at least one of Media Access Control-Control Unit (MAC-CE) signaling, Downlink Control Information (DCI) signaling, and Packet DCI signaling.

17. The method according to claim 16, characterized in that, The second signaling is DCI signaling, and the indication information is located on a newly defined DCI field in the DCI signaling.

18. The method according to claim 16, characterized in that, The second signaling is DCI signaling, and the indication information is located on unused DCI bits or DCI reserved code points in the DCI signaling.

19. The method according to claim 16, characterized in that, The second signaling is packet DCI signaling, and the indication information is located on a newly defined DCI bit in the DCI field corresponding to the first terminal in the packet DCI signaling.

20. The method according to claim 16, characterized in that, The second signaling is packet DCI signaling, and the indication information is located on unused DCI code points or newly added DCI code points in the DCI field corresponding to the first terminal in the packet DCI signaling.

21. A configuration device for a transmission strategy, characterized in that, The device includes: The sending module is used to send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel; The transmission strategy is used to determine a first transmission resource and a second transmission resource for two adjacent repeated transmissions of the uplink channel, where different transmit beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission. The transmission strategy is related to the number of symbols in the sub-slots used for one repeated transmission in the Physical Uplink Control Channel (PUCCH) or the delay requirements in the Physical Uplink Shared Channel (PUSCH). If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is less than a threshold or the delay requirement in the PUSCH is less than a threshold, the transmission strategy is a strategy of delaying beam switching time. If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is greater than a threshold or the delay requirement in the PUSCH is higher than a threshold, the transmission strategy is to delete the beam switching time.

22. A configuration device for a transmission strategy, characterized in that, The device includes: The receiving module is used to receive configuration signaling sent by the network device, wherein the configuration signaling includes the transmission strategy of the uplink channel; The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission. The transmission strategy is related to the number of symbols in the sub-slots used for one repeated transmission in the Physical Uplink Control Channel (PUCCH) or the delay requirements in the Physical Uplink Shared Channel (PUSCH). If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is less than a threshold or the delay requirement in the PUSCH is less than a threshold, the transmission strategy is a strategy of delaying beam switching time. If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is greater than a threshold or the delay requirement in the PUSCH is higher than a threshold, the transmission strategy is to delete the beam switching time.

23. A network device, characterized in that, The network device includes: a processor and a transceiver connected to the processor; wherein, The transceiver is used to send configuration signaling to the first terminal, the configuration signaling including the transmission strategy of the uplink channel; The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission. The transmission strategy is related to the number of symbols in the sub-slots used for one repeated transmission in the Physical Uplink Control Channel (PUCCH) or the delay requirements in the Physical Uplink Shared Channel (PUSCH). If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is less than a threshold or the delay requirement in the PUSCH is less than a threshold, the transmission strategy is a strategy of delaying beam switching time. If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is greater than a threshold or the delay requirement in the PUSCH is higher than a threshold, the transmission strategy is to delete the beam switching time.

24. A terminal device, characterized in that, The terminal device includes: a processor and a transceiver connected to the processor; wherein, The transceiver is used to receive configuration signaling sent by the network device, the configuration signaling including the transmission strategy of the uplink channel; The transmission strategy is used to determine a first transmission resource and a second transmission resource for performing two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device. The first transmission resource and the second transmission resource have a beam switching time for switching beam directions. The first transmission resource corresponds to the earlier of the two adjacent transmission opportunities for uplink channel transmission, and the second transmission resource corresponds to the later of the two adjacent transmission opportunities for uplink channel transmission. The transmission strategy is related to the number of symbols in the sub-slots used for one repeated transmission in the Physical Uplink Control Channel (PUCCH) or the delay requirements in the Physical Uplink Shared Channel (PUSCH). If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is less than a threshold or the delay requirement in the PUSCH is less than a threshold, the transmission strategy is a strategy of delaying beam switching time. If the number of symbols in the sub-slot used for one repeated transmission in the PUCCH is greater than a threshold or the delay requirement in the PUSCH is higher than a threshold, the transmission strategy is to delete the beam switching time.

25. A computer-readable storage medium, characterized in that, The readable storage medium stores executable instructions, which are loaded and executed by a processor to implement the configuration method of the transmission strategy as described in any one of claims 1 to 10, or the configuration method of the transmission strategy as described in any one of claims 11 to 20.

26. A chip, characterized in that, The chip includes programmable logic circuitry, and the chip is used to implement the configuration method of the transmission strategy as described in any one of claims 1 to 10, or the configuration method of the transmission strategy as described in any one of claims 11 to 20.

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