Wireless communication methods and communication devices

Abstract

This application provides a wireless communication method and a communication apparatus. The method includes: a terminal device receiving configuration information, the first configuration information being used to configure a first configuration grant resource, the first configuration grant resource being a periodic resource, and the first configuration grant resource occupying multiple time units within one period. The terminal device transmits a channel repetition in each of K time units, the multiple time units including the K time units, the channel repetition including data channel repetition or control channel repetition, wherein every T consecutive time units starting from a start time unit belong to the same time unit group, the K time units belong to at least one of the time unit groups, and the transmission parameters of the channel repetition transmitted in one of the at least one time unit groups remain unchanged, where K is an integer greater than 1 and T is an integer greater than 1. This method can improve the accuracy of channel estimation.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a wireless communication method and a communication device. Background Technology

[0002] In mobile communication systems, network devices can configure periodic or semi-persistent configuration grant resources for terminal devices. When a physical layer channel needs to be transmitted, the terminal device can use the configuration grant resource to send it to the network device without sending a scheduling request (SR) or receiving uplink grant information, thus reducing the transmission latency of the physical layer channel. A configuration grant resource can occupy multiple time units within a period. The terminal device can choose one of these time units to start repetitive transmission of the physical layer channel in that time unit and in the subsequent time units occupied by the configuration grant resource.

[0003] Currently, longer-term filtering in the time domain is considered to improve the accuracy of channel estimation. For example, channel estimation can be performed by combining repeated transmissions of multiple time units. However, joint channel estimation requires consensus between the terminal device and the network device on the multiple time units for performing joint channel estimation. For repeated transmissions of physical layer channels on configuration licensed resources, the starting time units of the physical layer channels transmitted by the terminal device within one cycle of the configuration licensed resources are not fixed. How to achieve consensus between the terminal device and the network device on the time units for performing joint estimation has become a problem that needs to be solved in the application of joint channel estimation to the repeated transmission mechanism of configuration licensed resources. Summary of the Invention

[0004] This application provides a wireless communication method and communication device that can improve the accuracy of channel estimation.

[0005] In a first aspect, a communication method is provided, which can be executed by a network device or a module (such as a chip) configured in (or used in) a network device.

[0006] The method includes: receiving configuration information, the configuration information being used to configure a first configuration authorization resource, the first configuration authorization resource being a periodic resource, the first configuration authorization resource occupying multiple time units within one period; transmitting a channel repetition in each of K time units, the multiple time units including the K time units, the channel repetition including data channel repetition or control channel repetition, wherein every T consecutive time units starting from a start time unit in the multiple time units belong to the same time unit group, the K time units belonging to at least one of the time unit groups, the transmission parameters of the channel repetition transmitted in one of the at least one time unit groups remaining unchanged, the transmission parameters including one or more of the following: transmission phase, transmission power, or average power, where K is an integer greater than 1, and T is an integer greater than 1.

[0007] According to the above-described scheme provided in the embodiments of this application, the terminal device and the network device group the time units for joint channel estimation based on the multiple time units occupied by the configured authorized resources within a cycle. This enables the terminal device and the network device to reach a consensus on the time unit grouping for joint channel estimation. This allows the terminal device to maintain unchanged transmission parameters for channels transmitted repeatedly within the same time unit group, so that the network device can repeatedly perform joint channel estimation on channels received within the same time unit group. This application of joint channel estimation to the repeated transmission mechanism of configured authorized resources improves channel estimation performance, as well as the uplink physical layer channel demodulation and decoding performance, thereby enhancing communication reliability.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the repetition period of the redundant versions in the redundant version sequence corresponding to the plurality of time units is M, wherein the redundant version sequence includes a plurality of redundant versions, one of the redundant versions corresponds to one of the plurality of time units, M is a positive integer, the first time unit in the K time units is the Nth time unit in the plurality of time units, N-1 is a common multiple of M and T, and N is a positive integer.

[0009] According to the above scheme, by specifying that the terminal device (and the corresponding network device in the same way) determines the first time unit that can be sent for channel repetition based on the common multiple of M and T, it is possible to ensure that each time unit group in which the terminal device sends channel repetition within a configuration authorized resource period has channel repetition that satisfies the number of time units T of joint channel estimation, thus guaranteeing the number of time units for joint channel estimation and achieving the effect of improving the accuracy of channel estimation through joint channel estimation.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the repetition period of the redundant versions in the redundant version sequence corresponding to the plurality of time units is M, wherein the redundant version sequence includes a plurality of redundant versions, one of the redundant versions corresponds to one of the time units in the plurality of time units, and wherein M is an integer multiple of T.

[0011] According to the above scheme, by specifying that the repetition period of the redundant version is an integer multiple of the number of time units T of the joint channel estimation, the channel transmitted by the terminal device within a configuration authorized resource period is repeated. This ensures that each time unit group that has transmitted repeated channels has channel repetition that satisfies the number of time units T of the joint channel estimation, thus guaranteeing the number of time units of the joint channel estimation and achieving the effect of improving the accuracy of channel estimation through joint channel estimation.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the number T of time units in which the transmission parameters remain unchanged is predefined.

[0013] According to the above scheme, the quantity T can be predefined, for example, predefined by the protocol and thus pre-configured in the terminal device and network device, so that the terminal device and network device can reach a consensus on the quantity T of the joint channel estimation without signaling interaction.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: receiving first indication information, the first indication information being used to indicate the number T of time units in which the sending parameters corresponding to the first configuration authorized resource remain unchanged.

[0015] According to the above scheme, the network device can notify the terminal device of the number of time units T for joint channel estimation, enabling the network device to indicate the appropriate number of time units for joint channel estimation based on actual communication conditions such as channel conditions. This improves the flexibility of joint channel estimation.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the configuration information includes the first indication information; or, the first indication information is carried in downlink control information, the downlink control information being used to activate the first configuration authorization resource, wherein the configuration information is an RRC message.

[0017] In conjunction with the first aspect, in some implementations of the first aspect, the configuration information includes second indication information, which is used to indicate a plurality of alternative time units for which the transmission parameters of the first configuration authorized resource remain unchanged. The first indication information is carried in the downlink control information, and the downlink control information specifically indicates the quantity T from the plurality of alternative quantities.

[0018] According to the above scheme, for a network device with a configured authorized resource, multiple alternative time units for joint channel estimation can be configured. Based on actual communication conditions such as channel conditions, when activating the configured authorized resource, an activation message indicates a number that meets the current conditions. This improves the flexibility of joint channel estimation.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the configuration information is used to configure multiple sets of configuration authorization resources, wherein the first configuration authorization resource is one of the multiple sets of configuration authorization resources, and the configuration information is also used to configure the number of time units with unchanged transmission parameters corresponding to each set of configuration authorization resources.

[0020] Secondly, a communication method is provided, which can be executed by a terminal device or a module (such as a chip) configured in (or used in) the terminal device.

[0021] The method includes: sending first configuration information, the first configuration information being used to configure a first configuration authorization resource, the first configuration authorization resource being a periodic resource, the first configuration authorization resource occupying multiple time units within a period; receiving multiple channel repetitions from a terminal device in the multiple time units, the channel repetitions including data channel repetitions or control channel repetitions, and the channel repetitions containing a reference signal; jointly estimating channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the time units of the first time unit group, wherein the multiple time units belong to multiple time unit groups, every T consecutive time units starting from the starting time unit in the multiple time units belong to the same time unit group, T is the number of time units for joint channel estimation, the multiple time unit groups include the first time unit group, and T is an integer greater than 1.

[0022] In conjunction with the second aspect, in some implementations of the second aspect, the first time unit group is the first time unit group among the plurality of time unit groups that includes the channel repetition from the terminal device. The step of jointly estimating the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the time units of the first time unit group includes: determining at least two time units in the first time unit group that include the channel repetition; and jointly estimating the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the at least two time units.

[0023] In conjunction with the second aspect, in some implementations of the second aspect, the repetition period of the redundant versions in the redundant version sequence corresponding to the plurality of time units is M, wherein the redundant version sequence includes a plurality of redundant versions, one of the redundant versions corresponds to one of the multiple time units, the first time unit group is the first time unit group in the plurality of time unit groups that contains the channel repetition, the first time unit in the first time unit group is the Nth time unit in the plurality of time unit groups, N-1 is a common multiple of M and T, and N is a positive integer.

[0024] In conjunction with the second aspect, in some implementations of the second aspect, the step of jointly estimating the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the time unit of the first time unit group includes: determining that the time unit in the first time unit group contains the channel repetition; and jointly estimating the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in each time unit of the first time unit group.

[0025] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: jointly estimating the channel information of the air interface channel corresponding to the second time unit group based on the reference signal in the time unit of the second time unit group, wherein the second time unit group is the time unit group following the first time unit among the plurality of time unit groups.

[0026] In conjunction with the second aspect, in some implementations of the second aspect, the repetition period of the redundant versions in the redundant version sequence corresponding to the plurality of time units is M, wherein the redundant version sequence includes a plurality of redundant versions, one of the redundant versions corresponds to one of the time units in the plurality of time units, and wherein M is an integer multiple of T.

[0027] In conjunction with the second aspect, in some implementations of the second aspect, the number T of time units for the joint channel estimation is predefined.

[0028] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: sending first indication information to the terminal device, the first indication information being used to indicate the number T of time units of joint channel estimation corresponding to the first configuration authorized resource.

[0029] In conjunction with the second aspect, in some implementations of the second aspect, the configuration information includes the first indication information; or, the first indication information is carried in downlink control information, the downlink control information being used to activate the first configuration authorization resource, wherein the configuration information is an RRC message.

[0030] In conjunction with the second aspect, in some implementations of the second aspect, the configuration information includes second indication information, which is used to indicate a plurality of alternative time units for joint channel estimation corresponding to the first configuration authorized resource. The first indication information is carried in the downlink control information, and the downlink control information specifically indicates the number T from the plurality of alternative numbers.

[0031] In conjunction with the second aspect, in some implementations of the second aspect, the configuration information is used to configure multiple sets of configuration grant resources, wherein the first configuration grant resource is one of the multiple sets of configuration grant resources, and the configuration information is also used to configure the number of joint channel estimation time units corresponding to each set of configuration grant resources.

[0032] Thirdly, a communication device is provided, which may include a module corresponding to performing the method / operation / step / action described in the first aspect and any possible implementation of the first aspect. The module may be a hardware circuit, software, or a combination of hardware circuit and software.

[0033] Fourthly, a communication device is provided, which may include a module corresponding to performing the methods / operations / steps / actions described in the second aspect and any possible implementation of the second aspect. The module may be a hardware circuit, software, or a combination of hardware circuit and software.

[0034] Fifthly, a communication device is provided, including a processor. The processor can implement the methods described in the first aspect and any possible implementation thereof. Optionally, the communication device further includes a memory, and the processor is coupled to the memory and can be used to execute instructions in the memory to implement the methods described in the first aspect and any possible implementation thereof. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In the embodiments of this application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interface, and is not limited thereto.

[0035] In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface can be a transceiver, or an input / output interface.

[0036] In another implementation, the communication device is a chip configured in a terminal device. When the communication device is a chip configured in a terminal device, the communication interface can be an input / output interface, and the processor can be a logic circuit.

[0037] Sixthly, a communication device is provided, including a processor. The processor can implement the methods of the second aspect and any possible implementation thereof. Optionally, the communication device further includes a memory, and the processor is coupled to the memory and can be used to execute instructions in the memory to implement the methods of the second aspect and any possible implementation thereof. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In the embodiments of this application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interface, and is not limited thereto.

[0038] In one implementation, the communication device is a network device. When the communication device is a network device, the communication interface can be a transceiver, or an input / output interface.

[0039] In another implementation, the communication device is a chip configured in a network device. When the communication device is a chip configured in a network device, the communication interface can be an input / output interface, and the processor can be a logic circuit.

[0040] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0041] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0042] A seventh aspect provides a processor, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the methods of the first aspect or the second aspect, and any possible implementation thereof.

[0043] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0044] Eighthly, a computer program product is provided, comprising: a computer program (also referred to as code or instructions) that, when run, causes a computer to perform the methods of the first or second aspect and any possible implementation thereof.

[0045] Ninth aspect, a computer-readable storage medium is provided that stores a computer program (also referred to as code or instructions) that, when executed on a computer, causes the computer to perform the methods of the first or second aspect and any possible implementation thereof.

[0046] In a tenth aspect, a communication system is provided, including at least one network device and at least one terminal device as described above. Attached Figure Description

[0047] Figure 1 This is an illustrative architecture of a communication system applicable to embodiments of this application;

[0048] Figure 2 This is a schematic diagram illustrating the repeated transmission of configuration authorization resources provided in an embodiment of this application;

[0049] Figure 3 This is a schematic diagram illustrating a network device blind detection error provided in an embodiment of this application;

[0050] Figure 4 This is a schematic flowchart of a wireless communication method provided in an embodiment of this application;

[0051] Figure 5 This is a schematic diagram of a wireless communication method provided in an embodiment of this application;

[0052] Figures 6 to 8 This is a schematic diagram of a terminal device determining the first time unit of transmission channel repetition provided in an embodiment of this application;

[0053] Figure 9 This is a schematic diagram illustrating a network device blind detection error provided in an embodiment of this application;

[0054] Figure 10 This is a schematic block diagram of the communication device provided in the embodiments of this application;

[0055] Figure 11 This is a schematic structural diagram of the terminal device provided in the embodiments of this application;

[0056] Figure 12 This is a schematic structural diagram of the network device provided in the embodiments of this application. Detailed Implementation

[0057] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0060] The technical solutions of this application can be applied to various communication systems, such as Long Term Evolution (LTE) systems, 5th Generation (5G) (or New Radio, NR) communication systems, and future communication systems, such as 6th Generation mobile communication systems. This application does not limit these applications.

[0061] Figure 1 This is a schematic structural diagram of a communication system applicable to this application.

[0062] like Figure 1 As shown, the communication system 100 may include at least one network device, such as... Figure 1 The network device 101 in the communication system 100 may also include at least one terminal device, such as Figure 1 The network device 101 and terminal devices 102 to 107 are described. These terminal devices 102 to 107 can be mobile or fixed. One or more of the network device 101 and terminal devices 102 to 107 can communicate via a wireless link. The network device and the terminal device can communicate using the wireless communication method provided in the embodiments of this application.

[0063] The terminal equipment in the embodiments of this application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device. The terminal equipment in the embodiments of this application may be a mobile phone, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, wireless terminal in autonomous driving, wireless terminal in telemedicine, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication function, computing device, vehicle-mounted device, wearable device, terminal equipment in a 5G network, or terminal equipment in a future evolved public land mobile network (PLMN), etc. It should be understood that this application does not limit the specific form of the terminal device.

[0064] The network device in this application embodiment can be a device with wireless transceiver capabilities in an access network. This device includes, but is not limited to: base stations, evolved node B (eNB), home base stations (e.g., home evolved node B, or home node B, HNB), baseband units (BBU), access points (APs), wireless relay nodes, wireless backhaul nodes, transmission points (TPs), or transmission and reception points (TRPs) in a Wi-Fi system. This device can also be a network node constituting a gNB or transmission point, a distributed unit (DU), etc. It should be understood that this application does not limit the specific form of the network device.

[0065] The relevant technologies and terms involved in the embodiments of this application will be described below.

[0066] I. Configuring and Granting Resources

[0067] Configuration license resources, also known as configuration authorization resources, include two types: Type 1 and Type 2.

[0068] Configuration authorized resource type 1 refers to a periodic resource configured by the network device for the terminal device via radio resource control (RRC) signaling. This configuration authorized resource takes effect upon the terminal device receiving the RRC message. The terminal device can use this configuration authorized resource to transmit physical layer channels, which may include data channels or control channels. The data channel may be the physical uplink shared channel (PUSCH) in a mobile communication system. The control channel may be the physical uplink control channel (PUCCH) in a mobile communication system. However, this application is not limited to these.

[0069] Network devices can specifically use configuration authorization resources that include RRC configuration information (configuredGrantConfig, configuration type 1) containing rrc-ConfiguredUplinkGrant. However, this application is not limited to this.

[0070] Configuration authorization resource type 2 is a semi-persistent resource configured by the network device for the terminal device via RRC messages. The network device can activate the type 2 configuration authorization resource through physical layer signaling. After activation, the configuration authorization resource takes effect and will appear periodically. The terminal device can use the configuration authorization resource to transmit physical layer channels. The network device can also deactivate the type 2 configuration authorization resource through physical layer signaling. After deactivation, the terminal device can no longer use the configuration authorization resource.

[0071] Network devices can specifically use configuration authorization resources of configuration type 2, such as `configuredGrantConfig`, which does not contain `rrc-ConfiguredUplinkGrant` configuration information. However, this application is not limited to this.

[0072] The type 1 configuration grant resource can be specifically referred to as the configured uplink grant, while the type 2 configuration grant resource can be specifically referred to as the configured uplink grant based on L1 signaling, i.e., physical layer signaling.

[0073] Network devices can be configured to use a set of authorized resources to occupy multiple time units within a cycle. These multiple time units are used for terminal devices to repeatedly transmit the same physical layer channel. One time unit can be used to transmit the physical layer channel once, or each of the multiple time units is used to transmit the physical layer channel once (physical layer channel repetition can be simply referred to as channel repetition).

[0074] For example, the configuration information sent by the network device for configuring the authorized resources includes an indication of the time-frequency position of a time unit and an indication of the number of repeated transmissions. The terminal device can determine the positions of multiple time units for repeated transmission of the physical layer channel within a period according to preset rules. The number of these multiple time units is equal to the number of repeated transmissions indicated by the indication information, and each time unit is used to transmit the physical layer channel once.

[0075] By way of example and not limitation, a time unit in the embodiments of this application may be an orthogonal frequency division multiplexing (OFDM) symbol group, a time slot, a subframe or frame, or a time unit corresponding to a channel repetition. The OFDM symbol group includes at least one OFDM symbol.

[0076] When a time unit is an OFDM symbol group, the configuration of authorized resources within a period can occupy multiple time units, which can be multiple OFDM symbol groups in a time slot, or the multiple time units can be multiple consecutive OFDM symbols in different time slots.

[0077] These multiple time units can be referred to as multiple transmission opportunities. Within a period of configuring authorized resources, the terminal device can choose to start from one of these multiple time units and repeatedly transmit the same physical layer channel in that time unit and subsequent time units.

[0078] For example Figure 2 As shown, a network device can be configured with a set of four time units for the configuration license resources to occupy within a cycle. When a terminal device needs to send a transport block, it can select a time unit within a cycle to start the transmission based on the arrival time and processing time of the transport block. After that time unit, the terminal device sends a data channel repeat once for each subsequent time unit occupied by the configuration license resources, and each data channel includes one of the transport blocks. Figure 2As shown, the four time units occupied by the authorized resources in one cycle are time unit 0, time unit 1, time unit 2 and time unit 3. The terminal device can start sending from time unit 1 in one cycle. Then the terminal device sends the data channel once in each time unit of time unit 1, 2 and 3. The data channel is repeatedly sent 3 times.

[0079] The terminal device may also repeatedly transmit the control channel in some or all of the time units within a period of the configured authorized resources. The control channel may include uplink control information, and one control channel repetition may be transmitted in each time unit. However, this application is not limited to this.

[0080] Network devices need to blindly detect whether terminal devices have transmitted physical layer channels on the configured licensed resources. Regardless of whether the terminal device transmits uplink data or uplink control information on the configured licensed resources, it transmits a reference signal for channel estimation in each time unit where a physical layer channel is transmitted. This reference signal could be a demodulation reference signal (DMRS). Network devices can detect the reference signal within the time unit occupied by the configured licensed resources to determine whether the terminal device has transmitted a physical layer channel in that time unit. Physical layer channels are received in the earliest time unit where the reference signal is detected and in the subsequent time units occupied by the configured licensed resources.

[0081] II. Joint Channel Estimation

[0082] To enhance uplink coverage, longer filtering in the time domain is considered. For example, joint channel estimation (also known as joint channel estimation) using reference signals from multiple time units can improve the accuracy of channel estimation. If the receiver performs joint channel estimation on reference signals from multiple time units, the physical layer channel transmitted by the transmitter in those time units needs to maintain unchanged transmission parameters. This ensures that the channel information obtained by the receiver from joint channel estimation of the reference signals received in those time units can be used for demodulation of the physical layer channel in those time units to obtain the physical layer channel transmitted by the terminal device. The transmission parameters of the transmitter may include, but are not limited to, one or more of the following:

[0083] Transmit phase, transmit power, or average power.

[0084] For repeated transmission of physical layer channels on configuration licensed resources, the starting time unit for repeated transmission of physical layer channels by the terminal device in multiple time units within one cycle of configuration licensed resources is not fixed. How to make the terminal device and network device reach a consensus on the time unit for joint estimation has become a problem that needs to be solved in the repeated transmission mechanism of joint channel estimation applied to configuration licensed resources.

[0085] Furthermore, the blind detection of the initial time unit for physical layer channel transmission by terminal devices when configuring authorized resources in network devices also suffers from false alarms and missed detections. A false alarm occurs when the network device detects a reference signal in a time unit when the terminal device has not transmitted a physical layer channel, and assumes that the terminal device has transmitted a physical layer channel in that time unit. A missed detection occurs when the network device fails to detect a reference signal in a time unit when the terminal device has transmitted a physical layer channel, and assumes that the terminal device has not transmitted a physical layer channel in that time unit.

[0086] For example Figure 3 As shown, the authorized resources are configured to occupy 8 time units within one cycle, namely time units 0 to 7. The terminal device starts sending PUSCH repetitions from time unit 1, so the actual time units for sending PUSCH repetitions are time units 1 to 7. One PUSCH repetition is sent in each time unit, and each PUSCH repetition includes DMRS. If the joint channel estimation interval is 4 time units, the terminal device can determine that the transmission parameters of the PUSCH repetitions sent every 4 consecutive time units remain unchanged, such as... Figure 3 The transmission parameters of the PUSCH repeats in time units 1 to 4 remain unchanged, and the transmission parameters of the PUSCH repeats in the remaining two time units, namely time units 5 to 7, remain unchanged.

[0087] The network device blindly detects DMRS within the time unit of the configured authorized resource occupation. If the network device successfully detects that the initial time unit of the physical layer channel sent by the terminal device is time unit 1, then the terminal device and the network device reach a consensus on the time unit of joint channel estimation. This joint channel estimation can improve the accuracy of channel estimation and thus improve the demodulation and decoding performance of the physical layer channel.

[0088] If a network device generates a false alarm during blind detection, for example... Figure 3As shown, when the network device blindly detects that the first time unit in a cycle of configured authorized resources for the terminal device to transmit repeated physical layer channels is time unit 0, the network device assumes that it performs joint channel estimation based on the DMRS in time units 0 to 3, and demodulates the physical layer channels in time units 0 to 3 based on the estimated channel information. Similarly, it performs joint channel estimation based on the DMRS in time units 4 to 7, and demodulates the physical layer channels in time units 4 to 7 based on the estimated channel information. This causes the interval of joint channel estimation perceived by the terminal device and the network device to differ. The transmission parameters of the physical layer channels within the interval in which the network device performs joint channel estimation may have changed, affecting the performance of demodulating the physical layer channels and reducing the reliability of physical layer channel transmission.

[0089] If a blind test of network devices misses a detection, for example... Figure 3 As shown, if the network device determines that the initial time unit for the terminal device to transmit the physical layer channel is time unit 2 using blind detection, then the network device assumes that joint channel estimation is performed based on the DMRS in time units 2 to 5, and demodulates the physical layer channel in time units 2 to 5 based on the estimated channel information. The network device also performs channel estimation separately based on the DMRS in time units 6 and 7. Missed detections by the network device can also cause discrepancies between the joint channel estimation intervals assumed by the terminal device and the network device, affecting the performance of demodulating the physical layer channel and reducing the reliability of physical layer channel transmission.

[0090] Furthermore, it can be obtained from Figure 3 It can be seen that if false alarms or missed detections occur during blind detection by network devices, it will affect the performance of inter-area channel estimation for each joint channel estimation and the demodulation of the physical layer channel. This will impact the overall transmission performance within the authorized resource period of this configuration.

[0091] This application proposes that since the time unit occupied by the configuration license resource in each cycle is constant, the network device and the terminal device determine the joint channel estimation interval based on the multiple time units occupied by the configuration license resource in one cycle, so that there will be no situation where the terminal device and the network device have different perceptions of the joint channel estimation interval.

[0092] The communication method provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0093] Figure 4 This is a schematic flowchart of a communication method 400 provided in an embodiment of this application.

[0094] S401, the network device sends configuration information to the terminal device, which is used to configure the first configuration authorized resource.

[0095] Accordingly, the terminal device receives the configuration information. The first configuration grant resource is a periodic resource, and it occupies multiple time units within one period. These multiple time units represent multiple transmission opportunities for repeatedly transmitting the same physical layer channel. Each of these multiple time units is used to transmit one physical layer channel repetition. Optionally, the physical layer channel repetition can be data channel repetition or control channel repetition. For example, the data channel repetition can be a PUSCH repetition, and the control channel repetition can be a PUCCH repetition.

[0096] S402, the terminal device determines that each consecutive T time units starting from the first time unit are a time unit group within a period of the first configuration authorized resource.

[0097] Where T represents the number of time units in which the terminal device transmits parameters without changing. In other words, T represents the number of time units in which the network device performs joint channel estimation. T is an integer greater than 1.

[0098] In one implementation, T is predefined.

[0099] For example, the number of time units for joint channel estimation is defined by the protocol as T, or the number of time units for which the transmission parameters remain unchanged is defined by the protocol as T. This number T is set in the factory configuration information of the terminal equipment and network equipment.

[0100] In another embodiment, the network device may send a first indication information to the terminal device, the first indication information being used to indicate that the number of time units with unchanged transmission parameters corresponding to the first configuration authorized resource is T, or in other words, the first indication information being used to indicate that the number of time units for joint channel estimation corresponding to the first configuration authorized resource is T.

[0101] Accordingly, the terminal device receives the first indication information from the network device and determines, based on the first indication information, the number of time units in which the transmission parameters remain unchanged for the first configuration authorized resource as T.

[0102] After receiving the configuration information, the terminal device groups multiple time units within a period of the first configuration authorized resource according to the quantity T. Each consecutive T time units starting from the first time unit constitutes a time unit group, and at least one time unit group can be determined after grouping.

[0103] In one embodiment, the configuration information used to configure the first configuration authorization resource may include the first indication information. The configuration information is an RRC message.

[0104] The first configuration authorization resource can be either a type 1 configuration authorization resource or a type 2 configuration authorization resource. The network device can notify the terminal device through the first indication information in the configuration information that the number of time units in which the transmission parameters corresponding to the first configuration authorization resource remain unchanged is T.

[0105] Optionally, the network device can configure multiple sets of configuration authorization resources for the terminal device, and configure the number of time units with unchanged transmission parameters (or the number of time units for joint channel estimation) for each set of configuration authorization resources.

[0106] It should be noted that the number of configuration authorization resources in the two sets of configuration authorization resources can be the same or different, and can be determined according to the specific implementation. This application does not impose any restrictions on this.

[0107] For example, the configuration information sent by the network device to the terminal device configures multiple sets of configuration authorization resources. The first configuration authorization resource is one of these multiple sets of configuration authorization resources, and the configuration information is also used to configure the number of time units with unchanged transmission parameters corresponding to each set of configuration authorization resources. For example, the configuration information includes multiple indication information, one of which indicates the number of time units with unchanged transmission parameters corresponding to a set of configuration authorization resources. The multiple indication information includes a first indication information, which indicates that the number is T. Optionally, the first indication information may specifically indicate the number T, or the first indication information may specifically indicate the identification information corresponding to the number T, and the number T is determined based on the identification information.

[0108] In another implementation, the first indication information can be carried in downlink control information, which is used to activate the first configuration authorization resource. The configuration information is an RRC message.

[0109] The first configuration authorization resource is a type 2 configuration authorization resource. In one example, the configuration information of the first configuration authorization resource does not configure the number of time units for which the transmission parameters of the first configuration authorization resource remain unchanged. The downlink control information that activates the first configuration authorization resource indicates that the number is T.

[0110] In another example, the configuration information of the first configuration authorized resource includes second indication information, which is used to indicate multiple alternatives for the time unit with unchanged transmission parameters corresponding to the first configuration authorized resource. The network device sends downlink control information to the terminal device, which is used to activate the first configuration authorized resource. The downlink control information includes first indication information, which is specifically used to indicate a quantity T from the multiple alternatives.

[0111] S403, the terminal device transmits a channel repeat in each of the K time units, the K time units belong to at least one time unit group, and the transmission parameters of the channel repeats transmitted in the same time unit group remain unchanged.

[0112] Here, the K time units are K of the multiple time units occupied by the first configuration authorized resources within a cycle.

[0113] For example Figure 5 As shown, the first configuration authorized resource occupies 8 time units within one cycle, such as Figure 5 The time units shown are 0 to 7. If the number T of time units with unchanged transmission parameters is 4, then every four consecutive time units starting from time unit 0 form a time unit group. For example, the four time units from time unit 0 to time unit 3 form a time unit group (e.g., time unit group 0), and the four time units from time unit 4 to time unit 7 form a time unit group (e.g., time unit group 1). The terminal device can determine that channel repetition will begin from time unit 2. Therefore, the terminal device will transmit channel repetition once in each of the six time units from time unit 2 to time unit 7 (i.e., K=6). The transmission parameters for channel repetitions transmitted within the same time unit group within these six time units remain unchanged. For example... Figure 5 As shown, time units 2 and 3 belong to time unit group 0, and the terminal device transmits the same data on two channels repeatedly in time units 2 and 3 with unchanged transmission parameters. Time units 4 to 7 belong to time unit group 1, and the terminal device transmits the same data on four channels repeatedly in time units 4 to 7 with unchanged transmission parameters.

[0114] Optionally, the parameters to be sent may include, but are not limited to, one or more of the following:

[0115] Transmit phase, transmit power, or average power.

[0116] It should be noted that, in the embodiments of this application, the unchanged transmission phase of the channel repetitions transmitted by the terminal device in time units belonging to the same time unit group can mean that the transmission phases of the channel repetitions transmitted in two adjacent time units within the same time unit group are continuous, or the transmission phases are the same, or the deviation of the transmission phases is less than a preset phase deviation threshold. The unchanged average power of the channel repetitions transmitted by the terminal device in two time units belonging to the same time unit group can mean that the average power of the channel repetitions transmitted in each of the two adjacent time units within the same time unit group is the same, or the deviation of the average power is less than a preset phase deviation threshold. The unchanged transmission power of the channel repetitions transmitted by the terminal device in two time units belonging to the same time unit group can mean that the transmission power of the channel repetitions transmitted in two adjacent time units within the same time unit group is the same, or the deviation of the transmission power is less than a preset phase deviation threshold.

[0117] The terminal device can determine the position of the first time unit among K time units based on the repetition period M of the redundant version (RV) sequence corresponding to the multiple time units occupied by the first configuration authorized resources within a cycle. The RV sequence includes multiple redundant versions, and one of these redundant versions corresponds to one time unit within the multiple time units.

[0118] The channel repetition transmitted by the terminal device within a time unit is obtained after the terminal device has processed based on redundancy versions. Specifically, the terminal device can perform rate matching on a transport block according to the cyclic redundancy version corresponding to a time unit, and transmit the cyclic redundancy check (CRC) code of this transport block in that time unit. That is, the data channel transmitted by the terminal device in that time unit includes the transport block and the CRC code of the transport block.

[0119] Optionally, the network device may send RV indication information to the terminal device. This RV indication information may indicate an RV sequence, and the RV sequence corresponding to the multiple time units may be determined based on the RV sequence indicated by the RV indication information. Optionally, the configuration information of the first configuration authorized resource may include the RV indication information.

[0120] For example, these multiple time units correspond sequentially with the RVs in the indicated RV sequence, thus obtaining the RV sequence corresponding to these multiple time units. In a specific example, the sequence indicated by the RV indication information is {0 3 0 3}. If the first configuration authorized resource occupies 8 time units in one cycle, then the 8 time units corresponding to {0 3 0 3} in a sequential cycle can obtain the RV sequence {0 3 0 3 0 3 0 3} for those 8 time units. If the first configuration authorized resource occupies 2 time units in one cycle, then the 2 time units corresponding to {0 3 0 3} in a sequential cycle can obtain the RV sequence {0 3} for those 2 time units. The repetition period M of the RV sequence is 2.

[0121] For example, the sequence indicated by the RV indication information can also be {0 1 2 3}. If the first configuration authorized resource occupies 8 time units in one cycle, then the RV sequence corresponding to these 8 time units is {0 1 2 3 0 1 2 3}, and the repetition period M of the RV sequence corresponding to these 8 time units is 4. If the first configuration authorized resource occupies 2 time units in one cycle, then the RV sequence corresponding to these 2 time units is {0 1}, and the repetition period M of the RV sequence corresponding to these 2 time units is 2.

[0122] The sequence indicated by the RV indication information can also be {0 0 0 0}, in which case the period M of the RV sequence corresponding to the multiple time units occupied by the first configuration authorized resource within a period is 1. However, this application is not limited to this.

[0123] The implementation methods for a terminal device to determine the position of the first time unit among K time units within the plurality of time units may include, but are not limited to, the following implementation methods:

[0124] In one implementation method, the terminal device can specify the time unit corresponding to the RV in each repetition period of the RV sequence corresponding to multiple time units to start sending channel repetition.

[0125] Optionally, RV can be specified as the time unit corresponding to the first RV in each period. Then the first time unit among the K time units is the time unit corresponding to the first RV in one period of the RV sequence.

[0126] For example, if the first configuration grant resource occupies 4 time units within one cycle, and the RV sequence corresponding to these 4 time units is {0 0 0 0}, the terminal device can start transmitting channel repetition in any one of the 4 time units within one cycle of the first configuration grant resource. It should be noted that if the terminal device transmits channel repetition in the last time unit, the network device only performs channel estimation based on the reference signal within that time unit. Optionally, it can be specified that the terminal device transmits channel repetition in at least two time units. Alternatively, if the RV sequence corresponding to these 4 time units is {03 0 3}, and the repetition period of the RV sequence is 2, the terminal device can start transmitting channel repetition in the time unit corresponding to the first RV in the first cycle of the RV sequence, i.e., the first time unit among these multiple time units, then K = 4. The terminal device can also start transmitting channel repetition in the time unit corresponding to the first RV in the second cycle of the RV sequence, i.e., the third time unit among these multiple time units, then K = 3.

[0127] The terminal device cannot use the time unit corresponding to an RV other than the specified RV as the first time unit of the transmission channel repetition within the configuration authorized resource period. In other words, the time unit corresponding to an RV other than the specified RV cannot be the first time unit among the K time units.

[0128] Optionally, the repetition period M of the RV sequence corresponding to the multiple time units occupied by the first configuration authorized resources within a period is an integer multiple of T. The repetition period of the RV sequence of the multiple time units can be predefined. Alternatively, the repetition period M of the RV sequence indicated by the network device through RV indication information is an integer multiple of T. However, this application is not limited to this.

[0129] For example, a network device can indicate the quantity T through the first indication information and the repetition period M of the RV sequence through the RV indication information. The network device needs to ensure that M is an integer multiple of T.

[0130] For example, if the number T of transmission parameters that remain unchanged corresponding to the first configured authorized resource is 2, the network device needs to configure the repetition period M of the RV sequence corresponding to these multiple time units to be an integer multiple of 2. Figure 6As shown, the network device can configure the repetition period of the RV sequence to be 4. The first configuration grants 8 time units within one period. The terminal device can start sending channel repetitions from the time unit corresponding to the first RV of the first repetition period of the RV sequence (i.e., time unit 0), then K = 8. The terminal device sends one channel repetition in each of these 8 time units. Alternatively, the terminal device can start sending channel repetitions from the time unit corresponding to the first RV of the second repetition period of the RV sequence (i.e., time unit 4), then K = 4, and the terminal device sends one channel repetition in each of time units 4 to 7 within these 8 time units. Therefore, it can be seen that when the repetition period M of the RV sequences corresponding to multiple time units is an integer multiple of T, the number of time units required for joint channel estimation can be guaranteed when the terminal device sends channel repetitions within one period. Figure 6 As shown, regardless of whether the terminal device starts transmitting channel repetition from time unit 0 or time unit 4, it can ensure that the transmission parameters of the channel repetition transmitted by the terminal device remain unchanged for every two time units. This allows the network device to perform joint channel estimation based on the reference signals in the two time units, achieving the effect of improving the accuracy of channel estimation through joint channel estimation.

[0131] In the second implementation method, the first time unit among the K time units is the Nth time unit among the plurality of time units, where N-1 is a common multiple of M and T, and N is a positive integer.

[0132] In other words, the terminal device determines the first time unit among K time units based on the repetition period M and T (the number of time units with unchanged transmission parameters) of the RV sequence corresponding to the multiple time units.

[0133] Terminal devices cannot use time units that do not meet the conditions within a cycle of configured authorized resources as the first time unit for transmission channel repetition within that cycle.

[0134] For example Figure 7As shown, the first configuration grant resource occupies 8 time units in one cycle. If the repetition period M of the RV sequence is 1, and the number of time units with unchanged transmission parameters is 4, then the terminal device can determine that the common multiple of (1, 4) is 0 and 4. Therefore, the terminal device can send a channel repetition once in each time unit starting from time unit 0 (i.e., the first time unit among these multiple time units, N=1), or send a channel repetition once in each time unit starting from time unit 4 (i.e., the fifth time unit among these multiple time units, N=4). The terminal device cannot use time units that do not meet the conditions, i.e., time units other than time units 0 and 4, as the first time unit for sending channel repetitions within the configuration grant resource cycle.

[0135] For example Figure 8 As shown, the first configuration authorized resource occupies 8 time units in one cycle. If the repetition period M of the RV sequence is 4 and the number of time units with unchanged transmission parameters is 2, then the terminal device can determine that the common multiple of (4,2) is 0 and 4. Then the terminal device can determine to send a channel repetition once in each time unit starting from time unit 0 (i.e., the first time unit in the multiple time units, N=1), or to send a channel repetition once in each time unit starting from time unit 4 (i.e., the fifth time unit in the multiple time units, N=4).

[0136] According to the example above Figure 7 , Figure 8 It can be seen that by specifying that the terminal device (and the corresponding network device in the same way) determines the first time unit that can be sent for channel repetition based on the common multiple of M and T, it is possible to ensure that each time unit group in which the terminal device sends channel repetition within a configuration authorized resource period has channel repetition that satisfies the number of time units T of joint channel estimation, thus guaranteeing the number of time units for joint channel estimation and improving the accuracy of channel estimation.

[0137] Optionally, the configuration information of the first configuration authorized resource may include third indication information, which may be used to indicate the method of determining the first time unit of transmission channel repetition.

[0138] For example, the third indication information can indicate one of the two embodiments described above. For instance, the third indication information indicates that the first time unit of transmission channel repetition is determined based on the repetition period of RV. Alternatively, the third indication information can indicate that the first time unit of transmission channel repetition is determined based on a common multiple of M and T.

[0139] The network device detects reference signals from the terminal device in multiple time units occupied by each cycle of the first configured authorized resources.

[0140] If the terminal device uses the first embodiment described above to determine the first time unit of the K time units, the network device can also correspondingly determine the first time unit in which the terminal device may transmit channel repetition based on the repetition period M of the RV sequences corresponding to multiple time units within a period of the first configured authorized resource, and detect whether the terminal device has transmitted a reference signal. Alternatively, if the terminal device uses the second embodiment described above to determine the first time unit of the K time units, the network device can also correspondingly determine the first time unit in which the terminal device may transmit channel repetition based on the repetition period M of the RV sequence and the number T of time units jointly estimated by the number of channels, and detect whether the terminal device has transmitted a reference signal.

[0141] Alternatively, even if the terminal device uses the first time unit of the K time units determined by the above-described Embodiment 1, Embodiment 2, or other embodiments, the network device still detects whether the terminal device has transmitted a reference signal in each of the multiple time units occupied by the first configured authorized resources in one cycle. Optionally, after the network device determines the earliest time unit containing the terminal device's reference signal based on the detection, it determines the first time unit in which the terminal device may have actually transmitted the reference signal based on the method used by the terminal device to determine the first time unit among the K time units. For example, if the terminal device uses the above-described Embodiment 1 to determine that the first time unit of the K time units is the time unit corresponding to the first RV in a repetition period of the RV sequence, and the network device determines that the earliest time unit containing the terminal device's reference signal is the time unit corresponding to the second RV in a repetition period of the RV sequence, then the network device can consider that the terminal device may actually have started transmitting channel repetitions from the time unit corresponding to the first RV in that repetition period. However, this application is not limited to this.

[0142] S404, The network device determines that each consecutive T time units starting from the first time unit are a time unit group within a period of the first configuration authorized resource.

[0143] The network device uses the same method as the terminal device to determine the time unit group based on multiple time units occupied by the first configured authorized resources within a cycle. This enables the terminal device and the network device to reach a consensus on the time units for joint channel estimation.

[0144] It should be noted that the network device can execute S404 in any order, not necessarily after S403. The network device can execute S404 after determining that the first configuration authorized resource occupies a time unit within a cycle.

[0145] S405, the network device jointly estimates the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the first time unit group.

[0146] The first time unit group is one of the time unit groups obtained by the network device from grouping multiple time units occupied by the first configuration authorized resources within a period. The network device determines that at least one time unit in the first time unit group contains channel repetition from the terminal device, and each channel repetition includes a reference signal. The network device can jointly estimate the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the at least one time unit.

[0147] It should be noted that the air interface channel is the transmission channel used between network devices and terminal devices to transmit physical layer channels. In the embodiments of this application, the physical layer channel can be a data channel containing transport blocks sent by the terminal device, such as PUSCH; or, the physical layer channel can be a control channel containing control information sent by the terminal device, such as PUCCH. Channel repetition in this application refers to physical layer channel repetition sent by the terminal device, such as PUSCH repetition or PUCCH repetition.

[0148] The first time unit group may be the first time unit group that includes channel repetitions from the terminal device.

[0149] If the terminal device uses the first time unit of the channel repetition in the above-described embodiment 1, then the first time unit containing the reference signal in the first time unit group is the time unit corresponding to the specified RV of a repetition period of the RV sequence.

[0150] If the terminal device uses the first time unit of channel repetition in Embodiment 2 described above, then each time unit in the first time unit group contains a reference signal from the terminal device, and the first time unit of the first time unit group is the Nth time unit among multiple time units, where N-1 is a common multiple of M and T, and N is a positive integer. The network device can jointly estimate the channel information corresponding to the first time unit group based on the reference signal contained in each time unit in the first time unit group.

[0151] The network device performs joint channel estimation on time units belonging to the same time unit group. For example, a time unit group includes a first time unit and a second time unit. The implementation methods for the network device to perform joint channel estimation may include, but are not limited to, the following:

[0152] In one embodiment, the channel estimation at the first time unit is related to both the reference signal at the first time unit and the reference signal at the second time unit, and / or the channel estimation at the second time unit is related to both the reference signal at the first time unit and the reference signal at the second time unit.

[0153] For two time units that do not belong to the same time unit group (e.g., denoted as the third time unit and the fourth time unit), the network device does not perform joint channel estimation for the third time unit and the fourth time unit. The channel estimation on the third time unit is independent of the reference signal on the fourth time unit, and the channel estimation on the fourth time unit is independent of the reference signal on the second time unit.

[0154] In another implementation, the network device performs channel estimation based on a reference signal in a first time unit to obtain first channel information, performs channel estimation based on a reference signal in a second time unit to obtain second channel information, and then filters the first and second channel information together to obtain jointly estimated channel information. This jointly estimated channel information can be used for demodulation of the physical layer channels in the first and / or second time units.

[0155] For the third and fourth time units that do not belong to the same time unit group, the network device does not perform joint channel estimation for the third and fourth time units, and the network device will not filter the channel information corresponding to the two time units estimated separately together.

[0156] The network device uses the same method as the terminal device to determine the time unit group based on multiple time units occupied by the first configured authorized resources within a cycle. This enables the terminal device and the network device to reach a consensus on the time unit grouping for joint channel estimation. If the network device experiences false alarms or missed detections, for example... Figure 9 As shown, the terminal device transmits channel repetition for 6 time units starting from time unit 2 out of 8 time units. If the network device misses a detection, it will reduce the number of time units for joint channel estimation of the time unit group to which the missed time unit belongs, but will not affect the joint channel estimation of subsequent time unit groups. If the network device issues a false alarm, it will only affect the channel information estimation performance of the first time unit group to which the network device detects the reference signal, and will not affect the joint channel estimation of subsequent time unit groups.

[0157] According to the above-described scheme provided in the embodiments of this application, the terminal device and the network device group the time units for joint channel estimation based on the multiple time units occupied by the configured authorized resources within a cycle. This enables the terminal device and the network device to reach a consensus on the time unit grouping for joint channel estimation. This allows the terminal device to maintain unchanged transmission parameters for channels transmitted repeatedly within the same time unit group, so that the network device can repeatedly perform joint channel estimation on channels received within the same time unit group. This application of joint channel estimation to the repeated transmission mechanism of the configured authorized resources improves channel estimation performance and uplink physical layer channel demodulation performance, thereby enhancing communication reliability.

[0158] The above, combined with Figures 2 to 9 The methods provided in the embodiments of this application are described in detail below. Figures 10 to 12 The apparatus provided in the embodiments of this application is described in detail. To implement the functions of the methods provided in the embodiments of this application, each network element may include a hardware structure and / or a software module, implementing the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a particular function is implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0159] Figure 10 This is a schematic block diagram of a communication device provided in an embodiment of this application. Figure 10 As shown, the communication device 1000 may include a processing unit 1010 and a transceiver unit 1020.

[0160] Optionally, the processing unit 1010 can be used to process instructions or data to implement corresponding operations. The transceiver unit 1020 can transmit and receive signals under the control of the processing unit 1010.

[0161] It should also be understood that when the communication device 1000 is a chip configured in (or used in) a terminal device, the transceiver unit 1020 in the communication device 1000 can be the input / output interface or circuit of the chip, and the processing unit 1010 in the communication device 1000 can be the processor in the chip.

[0162] Optionally, the communication device 1000 may further include a storage unit 1030, which can be used to store instructions or data. The processing unit 1010 can execute the instructions or data stored in the storage unit 1030 to enable the communication device to perform corresponding operations.

[0163] In one possible design, the communication device 1000 may correspond to the terminal device in the above method embodiments, or a chip configured in (or used for) the terminal device, or other means, modules, circuits, or units capable of implementing the methods of the terminal device. The operation and / or function of each unit or module in the communication device 1000 are respectively for implementing... Figure 4 The corresponding process for terminal devices in Method 400.

[0164] It should be understood that when the communication device 1000 is a terminal device, the transceiver unit 1020 in the communication device 1000 can be implemented through a communication interface (such as a transceiver or input / output interface), for example, it can correspond to Figure 11The transceiver 1110 is shown in the terminal device 1100. The processing unit 1010 in this communication device 1000 can be implemented by at least one processor, for example, corresponding to… Figure 11 The processor 1120 in the terminal device 1100 shown is illustrated. The processing unit 1010 in the communication device 1000 can also be implemented by at least one logic circuit. The storage unit 1030 in the communication device 1000 can correspond to... Figure 11 The memory in the terminal device 1100 shown in the figure.

[0165] It should also be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0166] In another possible design, the communication device 1000 may correspond to the network device in the above method embodiments, or a chip configured in (or used for) the network device, or other means, modules, circuits, or units capable of implementing the methods of the network device. The operation and / or function of each unit or module in the communication device 1000 are respectively for implementing... Figure 4 The corresponding procedures for network devices in Method 400.

[0167] It should be understood that when the communication device 1000 is a network device, the transceiver unit 1020 in the communication device 1000 can be implemented through a communication interface (such as a transceiver or input / output interface), for example, it can correspond to... Figure 12 The transceiver 1210 in the network device 1200 shown is illustrated. The processing unit 1010 in this communication device 1000 can be implemented by at least one processor, for example, a processor corresponding to… Figure 12 The processor 1220 in the network device 1200 shown in the figure, and the processing unit 1010 in the communication device 1000 can be implemented by at least one logic circuit.

[0168] It should also be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0169] Figure 11 This is a schematic diagram of the structure of the terminal device 1100 provided in an embodiment of this application. The terminal device 1100 can be applied to, for example... Figure 1In the system shown, the functions of the terminal device in the above method embodiments are executed. As shown, the terminal device 1100 includes a processor 1120 and a transceiver 1110. Optionally, the terminal device 1100 also includes a memory. The processor 1120, transceiver 1110, and memory can communicate with each other through internal connection paths to transmit control and / or data signals. The memory is used to store computer programs, and the processor 1120 is used to execute the computer programs in the memory to control the transceiver 1110 to transmit and receive signals.

[0170] The processor 1120 and the memory can be combined into a single processing device. The processor 1120 executes the program code stored in the memory to achieve the aforementioned functions. In specific implementations, the memory can be integrated into the processor 1120 or independent of it. The processor 1120 can be combined with... Figure 10 The corresponding processing unit in the process.

[0171] The transceiver 1110 described above can be used with Figure 10 The transceiver unit corresponds to this. The transceiver 1110 may include a receiver (or receiver circuit) and a transmitter (or transmitter circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0172] It should be understood that Figure 11 The terminal device 1100 shown can achieve Figure 4 The methods illustrated in the embodiments involve processes related to a terminal device. The operations and / or functions of each unit or module in the terminal device 1100 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the descriptions in the above method embodiments; to avoid repetition, detailed descriptions are appropriately omitted here.

[0173] The processor 1120 described above can be used to execute the actions implemented internally by the terminal device as described in the preceding method embodiments, while the transceiver 1110 can be used to execute the actions described in the preceding method embodiments of sending data to or receiving data from the network device by the terminal device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.

[0174] Optionally, the terminal device 1100 may also include a power supply for providing power to various devices or circuits in the terminal device.

[0175] In addition, to further enhance the functionality of the terminal device, the terminal device 1100 may also include input / output devices, such as one or more of an input unit, a display unit, an audio circuit, a camera, and a sensor. The audio circuit may also include a speaker, a microphone, etc.

[0176] Figure 12This is a schematic diagram of the structure of a network device provided in an embodiment of this application. The network device 1200 can be applied to, for example... Figure 1 In the system shown, the functions of the network device in the above method embodiments are performed. For example... Figure 12 As shown, the network device 1200 includes a processor 1220 and a transceiver 1210. Optionally, the network device 1200 also includes a memory. The processor 1220, transceiver 1210, and memory can communicate with each other via internal connections to transmit control and / or data signals. The memory stores computer programs, and the processor 1220 executes the computer programs stored in the memory to control the transceiver 1210 to transmit and receive signals.

[0177] The processor 1220 and the memory can be combined into a single processing device. The processor 1220 executes the program code stored in the memory to achieve the aforementioned functions. In specific implementations, the memory can be integrated into the processor 1220 or independent of the processor 1220. The processor 1220 can be combined with... Figure 10 The corresponding processing unit in the process.

[0178] The transceiver 1210 described above can be used with Figure 10 The transceiver unit corresponds to this. The transceiver 1210 may include a receiver (or receiver circuit) and a transmitter (or transmitter circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0179] It should be understood that Figure 12 The network device 1200 shown can achieve Figure 4 The methods illustrated in the embodiments involve various processes of the network device. The operations and / or functions of each module in the network device 1200 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the descriptions in the above method embodiments; to avoid repetition, detailed descriptions are appropriately omitted here.

[0180] The processor 1220 described above can be used to perform the actions implemented internally by the network device as described in the preceding method embodiments, while the transceiver 1210 can be used to perform the actions described in the preceding method embodiments of sending data from the network device to the terminal device or receiving data from the terminal device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.

[0181] This application also provides a processing apparatus, including a processor and a (communication) interface; the processor is used to execute the methods in any of the above method embodiments. It should be understood that the processing apparatus may be one or more chips.

[0182] According to the method provided in the embodiments of this application, this application also provides a computer program product, which includes: computer program code, which, when executed by one or more processors, causes a device including the processor to perform the method provided in any of the above method embodiments.

[0183] The technical solutions provided in this application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, they can be implemented in whole or in part as a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a terminal device, a core network device, a machine learning device, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another.

[0184] According to the method provided in the embodiments of this application, this application also provides a computer-readable storage medium storing program code that, when run by one or more processors, causes a device including the processor to perform the method provided in any of the above-described method embodiments.

[0185] According to the method provided in the embodiments of this application, this application also provides a system that includes one or more of the aforementioned network devices. The system may further include one or more of the aforementioned terminal devices.

[0186] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0187] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0188] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wireless communication method, characterized in that, include: Receive configuration information, the configuration information being used to configure a first configuration authorized resource, the first configuration authorized resource being a periodic resource, the first configuration authorized resource occupying multiple time units within a period; A channel repeat is transmitted in each of the K time units, wherein the plurality of time units includes the K time units, and the channel repeat includes data channel repeat or control channel repeat. In this context, each consecutive T time units starting from the initial time unit belong to the same time unit group, and the K time units belong to at least one of the time unit groups. In the at least one time unit group, the transmission parameters of the channel transmitted repeatedly in one of the time unit groups remain unchanged. The transmission parameters include one or more of the following: transmission phase, transmission power, or average power. K is an integer greater than 1, and T is an integer greater than 1.

2. The method according to claim 1, characterized in that, The repeating period of the redundant versions in the redundant version sequence corresponding to the multiple time units is M, wherein the redundant version sequence includes multiple redundant versions, one of the multiple redundant versions corresponds to one time unit in the multiple time units, and M is a positive integer. The first time unit among the K time units is the Nth time unit among the plurality of time units, N-1 is a common multiple of M and T, and N is a positive integer.

3. The method according to claim 1 or 2, characterized in that, The repeating period of the redundant versions in the redundant version sequence corresponding to the multiple time units is M, wherein the redundant version sequence includes multiple redundant versions, one of the multiple redundant versions corresponds to one of the multiple time units, and M is an integer multiple of T.

4. The method according to any one of claims 1 to 3, characterized in that, The number T of time units in which the transmission parameters remain unchanged is predefined.

5. The method according to any one of claims 1 to 3, characterized in that, The method further includes: Receive first indication information, which is used to indicate the number T of time units in which the sending parameters of the first configuration authorized resource remain unchanged.

6. The method according to claim 5, characterized in that, The configuration information includes the first indication information; or... The first indication information is carried in downlink control information, which is used to activate the first configuration authorized resource. The configuration information is an RRC message.

7. The method according to claim 6, characterized in that, The configuration information includes second indication information, which is used to indicate a plurality of alternative time units for which the transmission parameters remain unchanged corresponding to the first configuration authorized resource. The first indication information is carried in the downlink control information, and the downlink control information specifically indicates the quantity T from the plurality of alternative quantities.

8. The method according to any one of claims 5 to 6, characterized in that, The configuration information is used to configure multiple sets of configuration authorization resources, wherein the first configuration authorization resource is one of the multiple sets of configuration authorization resources, and the configuration information is also used to configure the number of time units with unchanged transmission parameters corresponding to each set of configuration authorization resources.

9. A wireless communication method, characterized in that, include: Send first configuration information, which is used to configure a first configuration authorized resource. The first configuration authorized resource is a periodic resource and occupies multiple time units within a period. Multiple channel repetitions from a terminal device are received in the plurality of time units, the channel repetitions including data channel repetitions or control channel repetitions, and the channel repetitions include a reference signal; Based on the reference signal in the time unit of the first time unit group, the channel information of the air interface channel corresponding to the first time unit group is jointly estimated. The plurality of time units belong to a plurality of time unit groups. Each consecutive T time units starting from the initial time unit belong to the same time unit group. T is the number of time units for joint channel estimation. The plurality of time unit groups include the first time unit group. T is an integer greater than 1.

10. The method according to claim 9, characterized in that, The first time unit group is the first time unit group among the plurality of time unit groups that includes the channel repetition from the terminal device. The step of jointly estimating the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the time unit of the first time unit group includes: Identify at least two time units in the first time unit group that contain the channel repetition; Based on the reference signals in the at least two time units, the channel information of the air interface channel corresponding to the first time unit group is jointly estimated.

11. The method according to claim 9 or 10, characterized in that, The repeating period of the redundant versions in the redundant version sequence corresponding to the multiple time units is M, wherein the redundant version sequence includes multiple redundant versions, and one of the multiple redundant versions corresponds to one time unit in the multiple time units. The first time unit group is the first time unit group that includes the channel repetition among the plurality of time unit groups. The first time unit in the first time unit group is the Nth time unit among the plurality of time unit groups, where N-1 is a common multiple of M and T, and N is a positive integer.

12. The method according to claim 11, characterized in that, The step of jointly estimating the channel information of the air interface channel corresponding to the first time unit group based on the reference signal in the time unit of the first time unit group includes: It is determined that the time units in the first time unit group include the channel repetition; Based on the reference signal in each time unit of the first time unit group, the channel information of the air interface channel corresponding to the first time unit group is jointly estimated.

13. The method according to any one of claims 10 to 12, characterized in that, The method further includes: Based on the reference signal in the time unit of the second time unit group, the channel information of the air interface channel corresponding to the second time unit group is jointly estimated, wherein the second time unit group is the time unit group after the first time unit among the plurality of time unit groups.

14. The method according to any one of claims 9 to 13, characterized in that, The repeating period of the redundant versions in the redundant version sequence corresponding to the multiple time units is M, wherein the redundant version sequence includes multiple redundant versions, one of the multiple redundant versions corresponds to one of the multiple time units, and M is an integer multiple of T.

15. The method according to any one of claims 9 to 14, characterized in that, The number of time units T for the joint channel estimation is predefined.

16. The method according to any one of claims 9 to 14, characterized in that, The method further includes: Send a first indication message to the terminal device, the first indication message being used to indicate the number T of time units of joint channel estimation corresponding to the first configuration authorized resource.

17. The method according to claim 16, characterized in that, The configuration information includes the first indication information; or... The first indication information is carried in downlink control information, which is used to activate the first configuration authorized resource. The configuration information is an RRC message.

18. The method according to claim 17, characterized in that, The configuration information includes second indication information, which is used to indicate a plurality of alternative time units for joint channel estimation corresponding to the first configuration authorized resource. The first indication information is carried in the downlink control information, and the downlink control information specifically indicates the number T from the plurality of alternative numbers.

19. The method according to any one of claims 9 to 18, characterized in that, The configuration information is used to configure multiple sets of configuration grant resources, wherein the first configuration grant resource is one of the multiple sets of configuration grant resources, and the configuration information is also used to configure the number of joint channel estimation time units corresponding to each set of configuration grant resources.

20. A communication device, characterized in that, Includes processing units and transceiver units; The transceiver unit is used to send and receive information under the control of the processing unit; the processing unit is used to read code instructions and execute the method as described in any one of claims 1 to 19.

21. A communication device, characterized in that, Includes at least one processor coupled to memory; The memory is used to store programs or instructions; The at least one processor is used to execute the program or instructions to cause the apparatus to implement the method as described in any one of claims 1 to 19.

22. A chip, characterized in that, Includes at least one processor and a communication interface; The communication interface is used to receive signals input to the chip or signals output from the chip, and the processor communicates with the communication interface and implements the method as described in any one of claims 1 to 19 through logic circuits or execution code instructions.

23. A computer-readable storage medium, characterized in that, The computer stores instructions that, when executed on the computer, cause the computer to perform the method as described in any one of claims 1 to 19.

24. A computer program product, characterized in that, Includes instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 19.

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