WO2023011041A1

WO2023011041A1 - Wireless communication method and communication device

Info

Publication number: WO2023011041A1
Application number: PCT/CN2022/100966
Authority: WO
Inventors: 花梦
Original assignee: 华为技术有限公司
Priority date: 2021-08-06
Filing date: 2022-06-24
Publication date: 2023-02-09
Also published as: CN115913827A

Abstract

Provided in the present application are a wireless communication method and a communication device. The method comprises: a terminal device receives configuration information, where the first configuration information is used for configuring a first configured grant resource, the first configured grant resource is a periodic resource, and the first configured grant resource occupies multiple time units in one period. The terminal device sends a channel repetition in each of K time units, where multiple time units comprise the K time units, the channel repetition comprises a data channel repetition or a control channel repetition. In the multiple time units, every T consecutive time units that start from a starting time unit belong to the same time unit group, the K time units belong to the at least one time unit group, and the sending parameter of the channel repetition sent in one time unit group in the at least one time unit group is unchanged. K is an integer greater than 1, and T is an integer greater than 1. The accuracy of channel estimation can be improved.

Description

Wireless communication method and communication device

This application claims the priority of a Chinese patent application with application number 202110903067.6 and application title "Wireless Communication Method and Communication Device" filed with the State Intellectual Property Office of China on August 06, 2021, the entire contents of which are incorporated by reference in this application middle.

technical field

The present application relates to the communication field, and more specifically, to a wireless communication method and a communication device.

Background technique

In the mobile communication system, the network device can configure periodic or semi-persistent configuration authorization resources for the terminal device. When the terminal device has a physical layer channel to send, it can use the configuration authorization resource to send to the network device without sending a scheduling request (scheduling request) , SR) and receiving uplink scheduling (uplink grant) information, reducing the transmission delay of the physical layer channel. A configuration authorization resource can occupy multiple time units in one cycle, and the terminal device can start from a time unit selected from the multiple time units, and implement the physical layer on this time unit and the subsequent time units occupied by the configuration authorization resource. Repeated transmission of the channel.

At present, it is considered that filtering for a longer time in the time domain can be performed to improve the accuracy of channel estimation, for example, channel estimation can be performed in conjunction with repeated transmissions of multiple time units. However, joint channel estimation requires the terminal device and the network device to reach a consensus on multiple time units for performing joint channel estimation. For the repeated transmission of the physical layer channel on the configured authorized resource, the number of times the terminal device configures the authorized resource in a cycle The starting time unit for transmitting the physical layer channel in a time unit is not fixed. How to make the terminal device and the network device reach a consensus on the time unit for performing joint estimation has become a problem that needs to be solved in the repeated transmission mechanism for joint channel estimation to configure authorized resources. .

Contents of the invention

The present application provides a wireless communication method and a communication device, which can improve the accuracy of channel estimation.

In a first aspect, a communication method is provided, and the method may be executed by a network device or a module (such as a chip) configured on (or used for) the network device.

The method includes: receiving configuration information, the configuration information is used to configure a first configuration authorization resource, the first configuration authorization resource is a periodic resource, and the first configuration authorization resource occupies multiple time units in one cycle; Send a channel repetition in each time unit of K time units, the multiple time units include the K time units, the channel repetition includes data channel repetition or control channel repetition, wherein the multiple time units Every T consecutive time units starting from the starting time unit in the unit belong to the same time unit group, the K time units belong to at least one of the time unit groups, and one time unit group in the at least one time unit group The transmission parameter of the channel repetition transmitted in the transmission is unchanged, and the transmission parameter includes 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.

According to the above solution provided by the embodiment of the present application, the terminal device and the network device are based on the multiple time units occupied by the configuration authorization resources in one period, and the multiple time units are grouped into time units for joint channel estimation, so that the terminal device and Network devices agree on groupings of time units for joint channel estimation. It allows the terminal device to repeat the transmission parameters of the channel sent by the time unit belonging to the same group, so that the network device can repeatedly perform joint channel estimation on the channel received in the time unit belonging to the same group, and realize joint channel estimation for configuration In the repeated transmission mechanism of the authorized resources, the channel estimation performance and the demodulation and decoding performance of the uplink physical layer channel can be improved, thereby improving the communication reliability.

With reference to the first aspect, in some implementation manners of the first aspect, the repetition period of the redundancy version in the redundancy version sequence corresponding to the multiple time units is M, where the redundancy version sequence includes multiple redundancy one redundant version among the plurality of redundant versions corresponds to one time unit among the plurality of time units, M is a positive integer, and the first time unit among the K time units is the In the Nth time unit among the multiple time units, N-1 is a common multiple of the M and the T, and N is a positive integer.

According to the above scheme, by specifying that the terminal equipment (corresponding network equipment also adopts the same method) determines the first time unit that can transmit channel repetition according to the common multiple of M and T, the terminal equipment can be configured within a period of authorized resource Each time unit group that sends channel repetitions has channel repetitions that satisfy the number of time units T for joint channel estimation, ensuring the number of time units for joint channel estimation and achieving the effect of joint channel estimation to improve channel estimation accuracy.

With reference to the first aspect, in some implementation manners of the first aspect, the repetition period of the redundancy version in the redundancy version sequence corresponding to the multiple time units is M, where the redundancy version sequence includes multiple redundancy One redundant version among the multiple redundant versions corresponds to one time unit among the multiple time units, where M is an integer multiple of T.

According to the above scheme, by specifying that the repetition period of the redundant version is M 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 configured authorization resource period is repeated, so that the transmitted channel repeats There are channel repetitions satisfying the number of time units T of joint channel estimation in each time unit group of , which ensures the number of time units for joint channel estimation and achieves the effect of joint channel estimation to improve channel estimation accuracy.

With reference to the first aspect, in some implementation manners of the first aspect, the number T of time units in which the sending parameter remains unchanged is predefined.

According to the above solution, the number T can be predefined, for example, it is predefined by the protocol so that it is pre-configured in the terminal device and the network device, so that the terminal device and the network device can estimate the number T of the joint channel without signaling interaction. Reach a consensus.

With reference to the first aspect, in some implementation manners of the first aspect, the method further includes: receiving first indication information, where the first indication information is used to indicate that the transmission parameters corresponding to the first configured authorization resource remain unchanged The number of time units T.

According to the above solution, the network device can notify the terminal device of the number T of time units for joint channel estimation, so that the network device can indicate the appropriate number of time units for joint channel estimation according to actual communication conditions such as channel conditions. The flexibility of joint channel estimation is improved.

With reference to the first aspect, in some implementation manners of the first aspect, the configuration information includes the first indication information; or, the first indication information is carried in downlink control information, and the downlink control information is used for Activating the first configuration authorization resource, where the configuration information is an RRC message.

With reference to the first aspect, in some implementation manners of the first aspect, the configuration information includes second indication information, and the second indication information is used to indicate the time when the transmission parameter corresponding to the first configuration authorization resource remains unchanged Multiple candidate quantities of units, the first indication information is carried in the downlink control information, and the downlink control information specifically indicates the quantity T from the multiple candidate quantities.

According to the above solution, for a configured authorized resource, the network device can configure multiple alternative numbers of time units for joint channel estimation, and according to actual communication conditions such as channel conditions, when activating the configured authorized resource, the activation information indicates a time unit that satisfies the current The number of conditions. The flexibility of joint channel estimation is improved.

With reference to the first aspect, in some implementation manners of the first aspect, the configuration information is used to configure multiple groups of configuration authorization resources, and the first configuration authorization resource is one of the multiple groups of configuration authorization resources, so The configuration information is further used to configure the number of time units in which the sending parameters corresponding to each group of configuration authorization resources in the multiple groups of configuration authorization resources remain unchanged.

In a second aspect, a communication method is provided, and the method may be executed by a terminal device or a module (such as a chip) configured on (or used for) the terminal device.

The method includes: sending first configuration information, the first configuration information is used to configure a first configuration authorization resource, the first configuration authorization resource is a periodic resource, and the first configuration authorization resource occupies more than one period time units; multiple channel repetitions from the terminal equipment are received in the plurality of time units, the channel repetitions include data channel repetitions or control channel repetitions, and the channel repetitions include reference signals; according to the first time unit group The reference signal in the time unit in the time unit jointly estimates the channel information of the air interface channel corresponding to the first time unit group, wherein the multiple time units belong to multiple time unit groups, and the multiple time units Every T consecutive 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 multiple time unit groups include the first time unit group, and T is greater than Integer of 1.

With reference to the second aspect, in some implementation manners of the second aspect, the first time unit group is the first time unit group that includes the repetition of the channel from the terminal device among the multiple time unit groups , the joint estimation of the channel information of the air interface channel corresponding to the first time unit group according to the reference signal in the time unit in the first time unit group includes: determining the information contained in the first time unit group At least two time units of the channel repetition; according to the reference signal in the at least two time units, jointly estimate the channel information of the air interface channel corresponding to the first time unit group.

With reference to the second aspect, in some implementation manners of the second aspect, the repetition period of the redundancy version in the redundancy version sequence corresponding to the multiple time units is M, where the redundancy version sequence includes multiple redundancy one redundant version among the plurality of redundant versions corresponds to one time unit among the plurality of time units, and the first time unit group is that the multiple time unit groups contain the channel repetition The first time unit group of the first time unit group, the first time unit in the first time unit group is the Nth time unit in the multiple time unit groups, N-1 is the M and the T Common multiple, N is a positive integer.

With reference to the second aspect, in some implementation manners of the second aspect, the channel of the air interface channel corresponding to the first time unit group is jointly estimated according to the reference signal in the time unit in the first time unit group information, including: determining that the time units in the first time unit group include the channel repetition; jointly estimating the first time according to the reference signal in each time unit in the first time unit group Channel information of the air interface channel corresponding to the unit group.

With reference to the second aspect, in some implementation manners of the second aspect, the method further includes: according to the reference signal in the time units in the second time unit group, jointly estimating the Channel information of an air interface channel, the second time unit group is a time unit group after the first time unit among the plurality of time unit groups.

With reference to the second aspect, in some implementation manners of the second aspect, the repetition period of the redundancy version in the redundancy version sequence corresponding to the multiple time units is M, where the redundancy version sequence includes multiple redundancy One redundant version among the multiple redundant versions corresponds to one time unit among the multiple time units, where M is an integer multiple of T.

With reference to the second aspect, in some implementation manners of the second aspect, the number T of time units of the joint channel estimation is predefined.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: sending first indication information to the terminal device, where the first indication information is used to indicate that the first configuration authorization resource corresponds to The number of time units T for the joint channel estimation.

With reference to the second aspect, in some implementation manners of the second aspect, the configuration information includes the first indication information; or, the first indication information is carried in downlink control information, and the downlink control information is used for Activating the first configuration authorization resource, where the configuration information is an RRC message.

With reference to the second aspect, in some implementation manners of the second aspect, the configuration information includes second indication information, and the second indication information is used to indicate the time unit of the joint channel estimation corresponding to the first configuration authorization resource multiple candidate quantities, the first indication information is carried in the downlink control information, and the downlink control information specifically indicates the quantity T from the multiple candidate quantities.

With reference to the second aspect, in some implementation manners of the second aspect, the configuration information is used to configure multiple groups of configuration authorization resources, and the first configuration authorization resource is one of the multiple groups of configuration authorization resources, so The configuration information is further used to configure the number of time units for joint channel estimation corresponding to each group of configuration authorization resources in the multiple groups of configuration authorization resources.

A third aspect provides a communication device, which may include a module corresponding to performing the method/operation/step/action described in the first aspect and any possible implementation manner of the first aspect, and the module may be The hardware circuit may also be software, or may be implemented by combining hardware circuits with software.

A fourth aspect provides a communication device, which may include a module corresponding to performing the method/operation/step/action described in the second aspect and any possible implementation manner of the second aspect, and the module may be The hardware circuit may also be software, or may be implemented by combining hardware circuits with software.

In a fifth aspect, a communication device is provided, including a processor. The processor may implement the first aspect and the method in any possible implementation manner of the first aspect. 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, so as to implement the above first aspect and the method in any possible implementation manner of the first aspect. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In this embodiment of the present application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module or other types of communication interfaces, without limitation.

In an implementation manner, the communication device is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, 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 may be an input/output interface, and the processor may be a logic circuit.

In a sixth aspect, a communication device is provided, including a processor. The processor may implement the second aspect and the method in any possible implementation manner of the second aspect. 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, so as to implement the above second aspect and the method in any possible implementation manner of the second aspect. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In this embodiment of the present application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module or other types of communication interfaces, without limitation.

In an implementation manner, the communication device is a network device. When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, 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 may be an input/output interface, and the processor may be a logic circuit.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In a seventh aspect, a processor is provided, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in the first aspect or the second aspect and any possible implementation manner of the first aspect or the second aspect .

In the specific implementation process, the above-mentioned processor can be one or more chips, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a flip-flop and various logic circuits, etc. . The input signal received by the input circuit may be received and input by, for example but not limited to, the receiver, the output signal of the output circuit may be, for example but not limited to, output to the transmitter and transmitted by the transmitter, and the input circuit and the output The circuit may be the same circuit, which is used as an input circuit and an output circuit respectively at different times. The embodiment of the present application does not limit the specific implementation manners of the processor and various circuits.

In an eighth aspect, a computer program product is provided, and the computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is executed, causes the computer to perform the above-mentioned first aspect or the second aspect And the method in any possible implementation of the first aspect or the second aspect.

In a ninth aspect, a computer-readable storage medium is provided, and the computer-readable storage medium stores a computer program (also referred to as code, or an instruction) which, when run on a computer, causes the computer to perform the above-mentioned first aspect or The second aspect and the method in any possible implementation manner of the first aspect or the second aspect.

In a tenth aspect, a communication system is provided, including the foregoing at least one network device and the foregoing at least one terminal device.

Description of drawings

FIG. 1 is a schematic architecture of a communication system applicable to an embodiment of the present application;

FIG. 2 is a schematic diagram of repeated transmission of configuration authorization resources provided by the embodiment of the present application;

FIG. 3 is a schematic diagram of a network device blind detection error provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a wireless communication method provided by an embodiment of the present application;

FIG. 6 to FIG. 8 are schematic diagrams of the terminal device determining the first time unit of transmission channel repetition provided by the embodiment of the present application;

FIG. 9 is a schematic diagram of a network device blind detection error provided by an embodiment of the present application;

FIG. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

Fig. 12 is a schematic structural diagram of a network device provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second" and the like in the description, claims, and above-mentioned drawings of the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) system, fifth generation (5th generation, 5G) (or new radio (new radio, NR)) communication system and future communication systems, such as the sixth generation mobile communication system, etc. This application is not limited to this.

Fig. 1 is a schematic structural diagram of a communication system applicable to this application.

As shown in FIG. 1 , the communication system 100 may include at least one network device, such as network device 101 in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as terminal devices 102 to 107 in FIG. 1 . Wherein, the terminal devices 102 to 107 may be mobile or fixed. Each of the network device 101 and one or more of the terminal devices 102 to 107 may communicate via a wireless link. The wireless communication method provided by the embodiment of the present application may be used for communication between the network device and the terminal device.

The terminal equipment in the embodiment of the present application may also be referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal , wireless communication device, user agent, or user device. The terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless Terminals, wireless terminals in autonomous driving, wireless terminals in telemedicine, wireless terminals in smart grid, wireless terminals in transportation security, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones , session initiation protocol (session initiation protocol, SIP) telephone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device, vehicle-mounted device , wearable devices, terminal devices in the 5G network or terminal devices in the future evolved public land mobile network (PLMN), etc. It should be understood that the present application does not limit the specific form of the terminal device.

The network device in this embodiment of the present application may be a device in an access network that has a wireless transceiver function. The equipment includes but is not limited to: base station, evolved node B (evolved node B, eNB), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or sending and receiving point (transmission and reception point, TRP) in the (wireless fidelity, WIFI) system . The device may also be a network node constituting a gNB or a transmission point, a distributed unit (distributed unit, DU), etc. It should be understood that the present application does not limit the specific form of the network device.

Related technologies and terms involved in the embodiments of the present application are described below.

1. Configured grant resources

Configuration authorization resources can also be called configuration authorization resources. Configuration authorization resources include Type 1 and Type 2:

Configuration authorization resource type 1 is a periodic resource configured by the network device for the terminal device through radio resource control (RRC) signaling, and the configuration authorization resource becomes effective after the terminal device receives the RRC message. The terminal device can use the configured authorization resources to transmit physical layer channels, and the physical layer channels can include data channels or control channels. The data channel may be a physical uplink shared channel (PUSCH) in the mobile communication system. The control channel may be a physical uplink control channel (physical uplink control channel, PUCCH) in the mobile communication system. But the present application is not limited thereto.

Specifically, the network device may configure type 1 configuration authorization resources through RRC configuration information configuredGrantConfig including rrc-ConfiguredUplinkGrant. But the present application is not limited thereto.

Configuration authorization resource type 2 is a semi-persistent resource configured by network devices for terminal devices through RRC messages. Network devices can activate type 2 configuration authorization resources through physical layer signaling. After activation, the configuration authorization resources take effect, and the configuration authorization resources will be Occurring periodically, the terminal device may use the configured grant resource to transmit the physical layer channel. The network device may also deactivate the type 2 configuration authorization resource through physical layer signaling, and the terminal device cannot use the configuration authorization resource after deactivation.

Specifically, the network device may configure type 2 configuration authorization resources through RRC configuration information configuredGrantConfig that does not include rrc-ConfiguredUplinkGrant. But the present application is not limited thereto.

The configuration authorization resources of type 1 may specifically be referred to as configured uplink grant resources (configured uplink grant), and the configuration authorization resources of type 2 may specifically be referred to as based on layer 1 (layer 1, L1) signaling, that is, physical layer signaling Configured uplink grant based on L1 signaling.

A network device can configure a group of configuration authorization resources to occupy multiple time units in one cycle. The multiple time units are used for the terminal device to repeatedly transmit the same physical layer channel, and one time unit can be used to transmit the physical layer channel once, or in other words Each time unit in the multiple time units is used to transmit a physical layer channel repetition (the physical layer channel repetition may be referred to as channel repetition for short).

For example, the configuration information sent by the network device for configuring the configuration authorization resource includes the indication information of the time-frequency position of a time unit and the indication information indicating the number of repeated transmissions. The location of multiple time units in which the physical layer channel is repeatedly transmitted. The number of the multiple time units is equal to the number of repeated transmissions indicated by the indication information, and each time unit is used to transmit a physical layer channel once.

As an example without limitation, a time unit in this embodiment of the present application may be an (orthogonal frequency division multiplexing, OFDM) symbol group, a time slot, a subframe or a frame, and a time unit corresponding to a channel repetition. Wherein, the OFDM symbol group includes at least one OFDM symbol.

Wherein, when a time unit is an OFDM symbol group, the multiple time units occupied by the configuration grant resource in one cycle may be multiple OFDM symbol groups in one time slot, or the multiple time units may be in different time slots Consecutive multiple OFDM symbols.

The multiple time units may be referred to as multiple transmission opportunities. In a period of configuring authorized resources, the terminal device may choose to start from one of the multiple time units, and repeatedly transmit the same physical layer channel in this time unit and subsequent time units.

For example, as shown in Figure 2, the network device can be configured with a group of 4 time units that the configuration authorization resources occupy in one period. Select a time unit occupied by the configured authorized resource in a cycle, and the configured authorized resource occupied after the time unit sends a data channel repetition every time unit, and each data channel includes a transmission block. As shown in Figure 2, the four time units occupied by the configuration authorization resources in one cycle are time unit 0, time unit 1, time unit 2, and time unit 3, and the terminal device can start sending from time unit 1 in one cycle. , then the terminal device sends a data channel repetition in each

time unit

1, 2, and 3, and the data channel is repeatedly sent 3 times.

The terminal device may also repeatedly send a control channel in part or all of the multiple time units within one period of the configured authorization resource. The control channel may include uplink control information, and each time unit may send a control channel repetition. But the present application is not limited thereto.

The network device needs to blindly detect whether the terminal device has sent a physical layer channel on the configured authorized resources. Regardless of whether the terminal device sends uplink data or uplink control information on the configured authorized resources, the terminal device will send a reference signal for channel estimation in each time unit when the physical layer channel is sent. For example, the reference signal can be demodulation Reference signal (demodulation reference signal, DMRS). The network device may detect the reference signal at the time unit occupied by the configured authorized resources to determine whether the terminal device has sent a physical layer channel at the time unit. The physical layer channel is received at the earliest time unit when the reference signal is detected and the time unit occupied by the configured authorized resource after the time unit.

2. Joint channel estimation

In order to enhance the uplink coverage, it is considered that the accuracy of channel estimation can be improved by performing longer-time filtering in the time domain, for example, performing channel estimation jointly with reference signals in multiple time units (which may be called joint channel estimation). If the receiving end performs joint channel estimation on the reference signals in multiple time units, the physical layer channel sent by the sending end in the multiple time units needs to be repeated to keep the sending parameters unchanged, so that the receiving end can receive in the multiple time units The channel information obtained by performing joint channel estimation on the received reference signal can be used for demodulation of the physical layer channel of the multiple time units, and obtain the physical layer channel sent by the terminal device. Among them, the sending parameters of the sending end may include but not limited to one or more of the following:

Transmit phase, transmit power or average power.

For the repeated transmission of the physical layer channel on the configured authorized resource, the starting time unit of the repeated transmission of the physical layer channel sent by the terminal device in multiple time units within a cycle of configuring the authorized resource is not fixed. How to make the terminal device and the network device execute Reaching a consensus on the time unit of joint estimation has become a problem to be solved in the repeated transmission mechanism for joint channel estimation to allocate authorized resources.

In addition, when the network device blindly detects the initial time unit of the terminal device transmitting the physical layer channel on the allocation of authorized resources, there are also problems of false alarms and missed detections. The false alarm means that the network device detects the reference signal at a time unit when the terminal device does not send a physical layer channel, and considers that the terminal device sends a physical layer channel at this time unit. Missing detection means that the network device does not detect the reference signal in the time unit when the terminal device sends the physical layer channel, and considers that the terminal device does not send the physical layer channel in the time unit.

For example, as shown in FIG. 3 , the configuration authorization resource occupies 8 time units in one period, which are time unit 0 to time unit 7 respectively. The terminal device starts sending PUSCH repetitions from time unit 1, and the time units that actually send PUSCH repetitions are time units 1 to 7, and each time unit sends a PUSCH repetition, 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 in every 4 consecutive time units remain unchanged, as shown in Figure 3. The sending parameters remain unchanged, and the sending parameters of the PUSCH repetitions sent in the remaining two time units, ie, time unit 5 to time unit 7, remain unchanged.

The network device blindly detects the DMRS within the time unit occupied by the configured authorized resources. If the network device successfully blindly detects that the initial time unit for the terminal device to send the physical layer channel is time unit 1, the time unit for the joint channel estimation between the terminal device and the network device It is a consensus that the accuracy of channel estimation can be improved through joint channel estimation so as to improve the demodulation and decoding performance of the physical layer channel.

If a false alarm occurs in the blind detection of the network device, as shown in Figure 3, for example, the blind detection of the network device determines that the first time unit in which the terminal device sends the repetition of the physical layer channel within a cycle of configuring authorized resources is time unit 0, then the network The device considers that joint channel estimation is performed according to the DMRS in time unit 0 to time unit 3, and demodulates the physical layer channel in time unit 0 to time unit 3 according to the estimated channel information. And perform joint channel estimation according to the DMRS in time unit 4 to time unit 7, and demodulate the physical layer channels in time unit 4 to time unit 7 according to the estimated channel information. This makes the joint channel estimation range considered by the terminal device and the network device different, and the transmission parameters of the physical layer channel in the joint channel estimation range performed by the network device may have changed, affecting the performance of demodulating the physical layer channel, which will reduce the physical layer channel. Layer channel transmission reliability.

If the blind detection of the network device fails to detect, for example, as shown in Figure 3, the blind detection of the network device determines that the initial time unit for the terminal device to send the physical layer channel is time unit 2, then the network device considers that according to time unit 2 to time unit 5 The DMRS performs joint channel estimation, and demodulates the physical layer channels in time unit 2 to time unit 5 according to the estimated channel information. And the network device independently performs channel estimation according to the DMRS in time unit 6 and time unit 7 . The missed detection of the network equipment also causes the terminal equipment and the network equipment to consider the joint channel estimation interval to be different, which will affect the performance of demodulating the physical layer channel and reduce the reliability of the physical layer channel transmission.

Moreover, it can be seen from FIG. 3 that if false alarms or missed detections occur in the blind detection of the network equipment, it will affect the performance of the interval channel estimation of each joint channel estimation and the demodulation of the physical layer channel. The overall transmission performance within the configuration authorization resource period is affected.

This application proposes that since the time unit occupied by the configured authorized resources in each cycle is unchanged, the network device and the terminal device determine the joint channel estimation interval based on the multiple time units occupied by the configured authorized resources in one cycle, and no terminal will appear. The situation that the device and the network device have different perceptions of the joint channel estimation interval.

The communication method provided by the embodiment of the present application will be described below with reference to the accompanying drawings.

FIG. 4 is a schematic flowchart of a communication method 400 provided by an embodiment of the present application.

S401. The network device sends configuration information to the terminal device, where the configuration information is used to configure a first configuration authorization resource.

Correspondingly, the terminal device receives the configuration information. The first configuration authorization resource is a periodic resource, and the first configuration authorization resource occupies multiple time units within a period. The multiple time units are multiple transmission opportunities for repeated transmission of the same physical layer channel. Each time unit in the plurality of time units is used to transmit one physical layer channel repetition. Optionally, the physical layer channel repetition may be data channel repetition or control channel repetition. For example, the data channel repetition may be PUSCH repetition, and the control channel repetition may be PUCCH repetition.

S402. The terminal device determines that every T consecutive time units starting from the first time unit among the multiple time units within a period of the first configuration authorization resource is a time unit group.

Wherein, T is the number of time units for which the terminal device sends parameters unchanged. That is, T is the number of time units for the network device to perform joint channel estimation. T is an integer greater than 1.

In one embodiment, the T is predefined.

For example, the protocol defines the number of time units for joint channel estimation as T, or in other words, defines the protocol as T for the number of time units in which transmission parameters remain unchanged. The quantity T is set in the factory configuration information of the terminal device and the network device.

In another implementation manner, the network device may send first indication information to the terminal device, where the first indication information is used to indicate that the number of time units in which the transmission parameters corresponding to the first configuration authorization resources remain unchanged is T, or in other words, the The first indication information is used to indicate that the number of time units of joint channel estimation corresponding to the first configured grant resource is T.

Correspondingly, the terminal device receives the first indication information from the network device, and determines, as T, the number of time units corresponding to the first configuration authorization resource in which the sending parameter remains unchanged according to the first indication information.

After receiving the configuration information, the terminal device groups multiple time units within a period of the first configuration authorization resource according to the number T, and each consecutive T time units starting from the first time unit among the multiple time units is A time unit group, at least one time unit group can be determined after grouping.

In an implementation manner, the configuration information used to configure the first configuration authorization resource may include the first indication information. Wherein, the configuration information is an RRC message.

The first configuration authorization resource may be a type 1 configuration authorization resource, or a type 2 configuration authorization resource. The network device may notify the terminal device that the number of time units in which the sending parameter corresponding to the first configuration authorization resource remains unchanged is T through the first indication information in the configuration information.

Optionally, the network device may configure multiple groups of configuration authorization resources for the terminal device, and for each group of configuration authorization resources in the multiple groups of configuration authorization resources, it is configured with a corresponding number of time units (or called a joint number of time units for channel estimation).

It should be noted that the numbers corresponding to two groups of configuration authorization resources in the multiple groups of configuration authorization resources may be the same or different, and may be determined according to specific implementations. This application does not limit this.

For example, the configuration information sent by the network device to the terminal device configures multiple groups of configuration authorization resources, the first configuration authorization resource is one of the multiple groups of configuration authorization resources, and the configuration information is also used to configure the multiple groups of configuration authorization resources The number of time units in which the sending parameters corresponding to each group of configuration authorization resources in the group remain unchanged. For example, the configuration information includes a plurality of indication information, and one indication information in the plurality of indication information is used to indicate the number of time units in which the sending parameters corresponding to a group of configuration authorization resources remain unchanged. The plurality of indication information includes first indication information, and the first indication information is used to indicate that the quantity is T. Optionally, the first indication information may specifically indicate the quantity T, or the first indication information specifically indicates identification information corresponding to the quantity T, and the quantity is determined to be T according to the identification information.

In another implementation manner, the first indication information may be carried in downlink control information, and the downlink control information is used to activate the first configuration authorization resource. Wherein, the configuration information is an RRC message.

The first configuration authorization resource is a type 2 configuration authorization resource. In an example, the configuration information of the first configuration authorization resource does not configure the number of time units in which the sending parameters corresponding to the first configuration authorization resource remain unchanged. A downlink control information for configuring authorized resources indicates that the number is T.

In another example, the configuration information of the first configuration authorization resource includes second indication information, and the second indication information is used to indicate a plurality of alternative numbers of time units corresponding to the first configuration authorization resource in which the sending parameters remain unchanged, The network device sends downlink control information to the terminal device, the downlink control information is used to activate the first configuration authorization resource, and the downlink control information includes first indication information, and the first indication information is specifically used to select from the multiple candidate resources. The quantity T is indicated in the quantity.

S403, the terminal device sends a channel repetition in each time unit of K time units, the K time units belong to at least one time unit group, and the transmission parameters of the channel repetitions sent in the same time unit group remain unchanged.

Wherein, the K time units are K among the multiple time units occupied by the first configuration authorization resource in one period.

For example, as shown in FIG. 5 , the first configuration authorization resource occupies 8 time units in one period, such as time unit 0 to time unit 7 shown in FIG. 5 . If the number T of time units with constant sending parameters is 4, then every 4 consecutive time units starting from time unit 0 in the 8 time units is a time unit group, then the 4 time units from time unit 0 to time unit 3 A time unit is a time unit group, such as time unit group 0, and four time units from time unit 4 to time unit 7 are a time unit group, such as time unit group 1. The terminal device may determine to send channel repetitions from time unit 2, and then the terminal device sends channel repetitions once in each of the 6 time units (that is, K=6) from time unit 2 to time unit 7. Wherein, among the 6 time units, the sending and sending parameters of the channel repetition sent in the time units belonging to the same time unit group remain unchanged. As shown in FIG. 5 ,

time units

2 and 3 belong to time unit group 0, and the transmission parameters of the two channel repetitions sent by the terminal device in

time units

2 and 3 remain unchanged. Time unit 4 to time unit 7 belong to time unit group 1, and the transmission parameters of the four channel repetitions sent by the terminal device in time unit 4 to time unit 7 remain unchanged.

Optionally, sending parameters may include but not limited to one or more of the following:

Transmit phase, transmit power or average power.

It should be noted that, in the embodiment of the present application, the constant transmission phase of the channel repetition transmitted by the terminal device in the time units belonging to the same time unit group may refer to the channels transmitted in two adjacent time units in the same time unit group The transmission phases between channel repetitions are continuous, or the transmission phases are the same, or the deviation of the transmission phases is smaller than a preset phase deviation threshold. The constant average power of the channel repetition sent by the terminal device in two time units belonging to the same time unit group may refer to the constant power of the channel repetition sent by each of the two adjacent time units in the same time unit group The average power is the same, or the deviation of the average power is smaller than the preset phase deviation threshold. The constant transmission power of the channel repetition transmitted by the terminal device in two time units belonging to the same time unit group may mean that the transmission power of the channel repetition transmitted in two adjacent time units in the same time unit group is the same, Or the deviation of the transmit power is smaller than the preset phase deviation threshold.

The terminal device may determine the first time unit in the K time units according to the repetition period M of the redundancy version (redundancy version, RV) sequence corresponding to the multiple time units occupied by the first configuration authorization resource in one cycle. Position in multiple time units. Wherein, the RV sequence includes multiple redundant versions, and one redundant version in the multiple redundant versions corresponds to one time unit in the multiple time units.

The channel repetition sent by the terminal device in one time unit is obtained after processing by the terminal device based on the redundancy version. Specifically, the terminal device may perform rate matching on a transport block according to the cyclic redundancy version corresponding to a time unit, and transmit the cyclic redundancy check code of the transport block in the time unit. That is, the data channel sent by the terminal device in the time unit includes the transport block and the cyclic redundancy check code of the transport block.

Optionally, the network device may send RV indication information to the terminal device, where the RV indication information may indicate an RV sequence, and the RV sequences corresponding to the multiple time units may be determined based on the RV sequence of the RV indication information. Optionally, the configuration information of the first configuration authorization resource may include the RV indication information.

For example, the multiple time units correspond to the RVs in the indicated RV sequence in turn, so that the RV sequence corresponding to the multiple time units can be obtained. In a specific example, the sequence indicated by the RV indication information is {0 3 0 3}, if the first configuration authorization resource occupies 8 time units in one period, then the 8 time units and the {0 3 0 3} are sequentially The cycle correspondence can be obtained that the RV sequence corresponding to the 8 time units is {0 3 0 3 0 3 0 3}, if the first configuration authorization resource occupies 2 time units in one cycle, then the 2 time units and the { 0 3 0 3} can be cyclically corresponded in turn, and the RV sequence corresponding to the two time units can be obtained as {0 3}. Wherein, the repetition period M of the RV sequence is 2.

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

The sequence indicated by the RV indication information may also be {0 0 0 0}, then the period M of the RV sequence corresponding to the multiple time units occupied by the first configuration authorization resource within one period is 1. But the present application is not limited thereto.

The implementation manner in which the terminal device determines the position of the first time unit in the K time units in the multiple time units may include but not limited to the following implementation manners:

Embodiment 1, the terminal device may specify the time unit corresponding to the RV in each repetition period of the RV sequence corresponding to the multiple time units to start sending channel repetition.

Optionally, the specified RV may be the time unit corresponding to the first RV of each cycle. Then the first time unit in the K time units is the time unit corresponding to the first RV in one cycle of the RV sequence among the multiple time units.

For example, the first configuration authorization resource occupies 4 time units in one cycle, if the RV sequence corresponding to the 4 time units is {0 0 0 0}, the terminal device can Any one of the time units starts sending channel repetitions. It should be noted that if the terminal device sends channel repetition in the last time unit, the network device only performs channel estimation according to the reference signal in the time unit. Optionally, it may be specified that the terminal device transmits channel repetitions in at least two time units. Or, if the RV sequence corresponding to the 4 time units is {0 3 0 3}, and the repetition period of the RV sequence is 2, the terminal device can, at the time unit corresponding to the first RV in the first cycle of the RV sequence, That is, the first time unit among the multiple time units starts to transmit channel repetition, then K=4. The terminal device may also start sending channel repetition at the time unit corresponding to the first RV in the second period of the RV sequence, that is, the third time unit among the multiple time units, then K=3.

The terminal device cannot use the time unit corresponding to an RV other than the designated RV as the first time unit of the transmission channel repetition within the configured authorization resource period, that is, the time unit corresponding to an RV other than the designated RV cannot be used as K time units The first time unit in .

Optionally, the repetition period M of the RV sequence corresponding to the multiple time units occupied by the first configuration authorization resource in one period is an integer multiple of T. The repetition period of the plurality of time unit RV sequences may be predefined. Alternatively, the repetition period M of the RV sequence indicated by the network device through the RV indication information is an integer multiple of T. But the present application is not limited thereto.

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

For example, the number T of constant transmission parameters corresponding to the first configuration authorization resource is 2, and the network device needs to configure the repetition period M of the RV sequence corresponding to the multiple time units as an integer multiple of 2. As shown in Figure 6, the network device can configure the repetition cycle of the RV sequence to be 4, and the first configuration authorization resource occupies 8 time units in one cycle, and the terminal device can start from the first repetition of the RV sequence in the 8 time units The time unit corresponding to the first RV of the cycle (ie, time unit 0) starts to send channel repetitions, and K=8. The terminal device sends a channel repetition once in each time unit of the 8 time units. Or the terminal device can start sending channel repetition from the time unit corresponding to the first RV (i.e. time unit 4) of the second repetition period of the RV sequence in the 8 time units, then K=4, the terminal device Each time unit of time unit 4 to time unit 7 in the 8 time units sends a channel repetition. Therefore, it can be seen that when the repetition period M of the RV sequence 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 transmits channel repetitions within one period. As shown in Figure 6, regardless of whether the terminal device sends channel repetitions from time unit 0 or time unit 4, it can ensure that the transmission parameters of the terminal device for channel repetitions sent every 2 time units remain unchanged, so that the network The device may perform joint channel estimation based on reference signals in 2 time units. The effect of joint channel estimation to improve channel estimation accuracy is achieved.

Embodiment 2, the first time unit in the K time units is the Nth time unit in the plurality of time units, where N-1 is a common multiple of M and T, and N is a positive integer.

That is to say, the terminal device determines the first one of the K time units among the multiple time units according to the repetition periods M and T of the RV sequence corresponding to the multiple time units (the number of time units whose transmission parameters remain unchanged) unit of time.

The terminal device cannot use a time unit that does not meet the conditions within a cycle of configuring authorized resources as the first time unit for sending channel repetitions in the cycle.

For example, as shown in FIG. 7 , the first configuration authorization resource occupies 8 time units in one period. If the repetition period M of the RV sequence is 1, and the number of time units in which the sending parameters remain unchanged is 4, the terminal device can determine (1 , and the common multiple of 4) is 0 and 4, then the terminal device can send a channel repetition once in each time unit starting from time unit 0 (that is, the first time unit in the multiple time units, N=1), or One channel repetition is sent in each time unit starting from time unit 4 (ie, the fifth time unit in the plurality of time units, N=4). However, the terminal device cannot use a time unit that does not meet the conditions, that is, a time unit other than time unit 0 and time unit 4, as the first time unit for the transmission channel repetition within the configured authorization resource period.

For another example, as shown in FIG. 8 , the first configuration authorization resource occupies 8 time units in one period, if the repetition period M of the RV sequence is 4, and the number of time units in which the sending parameters remain unchanged is 2, then the terminal device can determine ( 4, 2) have a common multiple of 0 and 4, then the terminal device can determine to send a channel repetition at each time unit starting from time unit 0 (that is, the first time unit in the multiple time units, N=1) , or send a channel repetition once in each time unit starting from time unit 4 (that is, the fifth time unit in the plurality of time units, N=4).

According to Figure 7 and Figure 8 in the above examples, it can be seen that by specifying that the terminal equipment (corresponding network equipment also adopts the same method) determines the first time unit that can send channel repetition according to the common multiple of M and T, it can In each time unit group that the terminal device sends channel repetitions in a configuration authorization resource period, there are channel repetitions that satisfy the number of time units T of joint channel estimation, ensuring the number of time units for joint channel estimation and improving channel estimation. effect on accuracy.

Optionally, the configuration information of the first configuration authorization resource may include third indication information, and the third indication information may be used to indicate a manner of determining the first time unit of transmission channel repetition.

For example, the third indication information may indicate one of the above two implementation manners. As indicated by the third indication information, the first time unit of transmission channel repetition is determined based on the repetition period of the RV. Alternatively, the third indication information may indicate to determine the first time unit of transmission channel repetition based on a common multiple of M and T.

The network device detects the reference signal from the terminal device in multiple time units occupied by each period of the first configuration authorization resource.

If the terminal device adopts the above-mentioned embodiment—determining the first time unit of the K time units, the network device can also correspondingly base on the repetition period M , determine the first time unit in which the terminal device may transmit channel repetitions, and detect whether the terminal device has sent a reference signal. Alternatively, if the terminal device determines the first time unit of the K time units in the above second embodiment, the network device can also determine the terminal The device may send the first time unit of channel repetition and detect whether the end device has sent a reference signal.

Or, even if the terminal device adopts the first or second embodiment described above or other embodiments to determine the first time unit of the K time units, the network device is still occupying multiple time units within a period of the first configuration authorization resource Each time unit in detects whether the terminal device has sent a reference signal. Optionally, after the network device determines the earliest time unit containing the reference signal of the terminal device according to the detection, it determines that the terminal device may actually send The first time unit of the reference signal. For example, the terminal device adopts the first embodiment above, and determines that the first time unit of the K time units is the time unit corresponding to the first RV in one repetition period of the RV sequence. If the network device determines according to the detection that the terminal device reference signal The earliest time unit of the RV sequence is the time unit corresponding to the second RV in a repetition period of the RV sequence, then the network device can think that the terminal device may actually start sending channel repetitions from the time unit corresponding to the first RV of the repetition period of repetitions. But the present application is not limited thereto.

S404. The network device determines that every T consecutive time units starting from the first time unit among the multiple time units within a period of the first configuration authorization resource is a time unit group.

In the same manner as the terminal device, the network device determines the time unit group based on the multiple time units occupied by the first configuration authorization resource within one cycle. This enables the terminal device and the network device to reach a consensus on the time unit of the joint channel estimation.

It should be noted that the order in which the network device performs S404 is not limited to after S403, and the network device may perform S404 after determining that the first configuration authorization resource occupies a time unit within a cycle.

S405. The network device jointly estimates the channel information of the air interface channel corresponding to the first time unit group according to the reference signal in the first time unit group.

Wherein, the first time unit group is a time unit group obtained by grouping multiple time units occupied by the first configuration authorization resource within one cycle by the network device. The network device determines that at least one time unit in the first time unit group contains a channel repetition from the terminal device, and each channel repetition includes a reference signal. The network device may jointly estimate the channel information of the air interface channel corresponding to the first time unit group according to the reference signal in the at least one time unit.

It should be noted that the air interface channel is a transmission channel used to transmit a physical layer channel between a network device and a terminal device. In the embodiment of the present application, the physical layer channel may be a data channel including transport blocks sent by the terminal device, such as PUSCH, or the physical layer channel may be a control channel including control information sent by the terminal device, such as PUCCH. The channel repetition in this application refers to the physical layer channel repetition sent by the terminal equipment, such as PUSCH repetition or PUCCH repetition.

The first time unit group may be a first time unit group including channel repetitions from the terminal device.

If the terminal device adopts the first time unit of the first time unit of transmission channel repetition in the above embodiment, 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 one repetition period of the RV sequence .

If the terminal device adopts the second embodiment above to transmit the first time unit of channel repetition, each time unit in the first time unit group includes a reference signal from the terminal device, and the first time unit in the first time unit group A time unit is the Nth time unit among the multiple time units, and N-1 is a common multiple of M and T, and N is a positive integer. The network device may jointly estimate the channel information corresponding to the first time unit group according to the reference signal included in each time unit in the first time unit group.

The network device performs joint channel estimation on time units belonging to the same time unit group. For example, a time unit group includes the first time unit and the second time unit. The implementation of joint channel estimation by the network device may include but not limited to the following implementations :

In one embodiment, the channel estimation on the first time unit is related to both the reference signal on the first time unit and the reference signal on the second time unit, and/or, the channel estimation on the second time unit It is not only related to the reference signal on the first time unit, but also related to the reference signal on the second time unit.

However, for two time units that do not belong to the same time unit group (for example, 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, and the third time unit The channel estimate on the unit is independent of the reference signal on the fourth time unit, and the channel estimate on the fourth time unit is independent of the reference signal on the second time unit.

In another embodiment, the network device performs channel estimation according to the reference signal in the first time unit to obtain the first channel information, performs channel estimation according to the reference signal in the second time unit to obtain the second channel information, and then uses the first The channel information and the second channel information are filtered together to obtain jointly estimated channel information. The jointly estimated channel information may be used for demodulation of the physical layer channel of the first time unit and/or the second time unit.

However, for the third time unit and the fourth time unit that do not belong to the same time unit group, the network device does not perform joint channel estimation for the third time unit and the fourth time unit, and the network device does not use the two time units estimated separately The channel information corresponding to the unit is filtered together.

In the same manner as the terminal device, the network device determines the time unit group based on the multiple time units occupied by the first configuration authorization resource within one cycle. This enables the terminal device and the network device to reach a consensus on the grouping of time units for joint channel estimation. If there is a false alarm or missed detection on the network device, for example, as shown in Figure 9, the terminal device sends the channel repeatedly in the 6 time units starting from time unit 2 of the 8 time units. If there is a missed detection on the network device, it will Reduce the number of time units for the network device to perform joint channel estimation on the time unit group to which the missed time unit belongs, but it does not affect the joint channel estimation of the subsequent time unit groups. If there is a false alarm on the network device, it will only affect the detection of the network device The channel information estimation performance of the first time unit group of the reference signal will not affect the joint channel estimation of the subsequent time unit groups.

According to the above solution provided by the embodiment of the present application, the terminal device and the network device are based on the multiple time units occupied by the configuration authorization resources in one period, and the multiple time units are grouped into time units for joint channel estimation, so that the terminal device and Network devices agree on groupings of time units for joint channel estimation. It allows the terminal device to repeat the transmission parameters of the channel sent by the time unit belonging to the same group, so that the network device can repeatedly perform joint channel estimation on the channel received in the time unit belonging to the same group, and realize joint channel estimation for configuration In the repeated transmission mechanism of the authorized resources, the channel estimation performance and the demodulation performance of the uplink physical layer channel can be improved, thereby improving the communication reliability.

Above, the method provided by the embodiment of the present application is described in detail with reference to FIG. 2 to FIG. 9 . Hereinafter, the device provided by the embodiment of the present application will be described in detail with reference to FIG. 10 to FIG. 12 . In order to realize the functions in the methods provided by the above embodiments of the present application, each network element may include a hardware structure and/or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above-mentioned functions is executed 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.

Fig. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 10 , the communication device 1000 may include a processing unit 1010 and a transceiver unit 1020 .

Optionally, the processing unit 1010 may 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 .

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 may be an input/output interface or circuit of the chip, and the processing in the communication device 1000 Unit 1010 may be a processor in a chip.

Optionally, the communication device 1000 may further include a storage unit 1030, which may be used to store instructions or data, and the processing unit 1010 may execute the instructions or data stored in the storage unit 1030, so that the communication device implements corresponding operate.

In a possible design, the communication device 1000 may correspond to the terminal device in the above method embodiments, or a chip configured in (or used in) the terminal device, or other devices capable of implementing the method of the terminal device, modules, circuits or units etc. The operations and/or functions of each unit or module in the communication apparatus 1000 are respectively to implement a corresponding process of the terminal device in the method 400 in FIG. 4 .

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 an input/output interface), for example, it can correspond to the terminal device shown in FIG. 11 Transceiver 1110 in 1100. The processing unit 1010 in the communication apparatus 1000 may be implemented by at least one processor, for example, may correspond to the processor 1120 in the terminal device 1100 shown in FIG. 11 . The processing unit 1010 in the communication device 1000 may also be implemented by at least one logic circuit. The storage unit 1030 in the communication apparatus 1000 may correspond to the memory in the terminal device 1100 shown in FIG. 11 .

It should also be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.

In another possible design, the communication device 1000 may correspond to the network device in the above method embodiment, or a chip configured in (or used in) the network device, or other devices capable of implementing the method of the network device , modules, circuits or units, etc. The operations and/or functions of each unit or module in the communication apparatus 1000 are respectively to realize the corresponding flow of the network device in the method 400 in FIG. 4 .

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 realized through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to the network device shown in FIG. 12 Transceiver 1210 in 1200. The processing unit 1010 in the communication device 1000 can be implemented by at least one processor, for example, it can correspond to the processor 1220 in the network device 1200 shown in FIG. circuit implementation.

FIG. 11 is a schematic structural diagram of a terminal device 1100 provided in an embodiment of the present application. The terminal device 1100 may be applied to the system shown in FIG. 1 to perform functions of the terminal device in the foregoing method embodiments. As shown in the figure, the terminal device 1100 includes a processor 1120 and a transceiver 1110 . Optionally, the terminal device 1100 further includes a memory. Wherein, the processor 1120, the transceiver 1110 and the memory may communicate with each other through an internal connection path, and 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 send and receive signals.

The processor 1120 and the memory may be combined into a processing device, and the processor 1120 is configured to execute program codes stored in the memory to realize the above functions. During specific implementation, the memory may also be integrated in the processor 1120 or be independent of the processor 1120 . The processor 1120 may correspond to the processing unit in FIG. 10 .

The above-mentioned transceiver 1110 may correspond to the transceiver unit in FIG. 10 . The transceiver 1110 may include a receiver (or called a receiver, a receiving circuit) and a transmitter (or called a transmitter, a transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.

It should be understood that the terminal device 1100 shown in FIG. 11 can implement the process involving the terminal device in the method embodiment shown in FIG. 4 . The operations and/or functions of each unit or module in the terminal device 1100 are respectively to implement the corresponding processes in the foregoing method embodiments. For details, reference may be made to the descriptions in the foregoing method embodiments, and detailed descriptions are appropriately omitted here to avoid repetition.

The above-mentioned processor 1120 can be used to execute the actions implemented by the terminal device described in the previous method embodiments, and the transceiver 1110 can be used to execute the actions described in the previous method embodiments sent by the terminal device to the network device or received from the network device. action. For details, please refer to the description in the foregoing method embodiments, and details are not repeated here.

Optionally, the terminal device 1100 may further include a power supply, configured to provide power to various devices or circuits in the terminal device.

In addition, in order to make the functions of the terminal equipment more perfect, the terminal equipment 1100 may also include input and output devices, such as including one or more of an input unit, a display unit, an audio circuit, a camera, and a sensor. The circuitry may also include speakers, microphones, and the like.

FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of the present application. The network device 1200 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments. As shown in FIG. 12 , the network device 1200 includes a processor 1220 and a transceiver 1210 . Optionally, the network device 1200 further includes a memory. Wherein, the processor 1220, the transceiver 1210, and the memory may communicate with each other through an internal connection path, and transmit control and/or data signals. The memory is used to store computer programs, and the processor 1220 is used to execute the computer programs in the memory to control the transceiver 1210 to send and receive signals.

The processor 1220 and the memory may be combined into a processing device, and the processor 1220 is configured to execute the program codes stored in the memory to realize the above functions. During specific implementation, the memory may also be integrated in the processor 1220, or be independent of the processor 1220. The processor 1220 may correspond to the processing unit in FIG. 10 .

The above-mentioned transceiver 1210 may correspond to the transceiver unit in FIG. 10 . The transceiver 1210 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.

It should be understood that the network device 1200 shown in FIG. 12 can implement various processes related to the network device in the method embodiment shown in FIG. 4 . The operations and/or functions of the various modules in the network device 1200 are respectively for implementing the corresponding processes in the foregoing method embodiments. For details, reference may be made to the descriptions in the foregoing method embodiments, and detailed descriptions are appropriately omitted here to avoid repetition.

The above-mentioned processor 1220 can be used to execute the actions internally implemented by the network device described in the foregoing method embodiments, and the transceiver 1210 can be used to execute the actions described in the foregoing method embodiments that the network device sends to or receives from the terminal device. action. For details, please refer to the description in the foregoing method embodiments, and details are not repeated here.

The embodiment of the present application also provides a processing device, including a processor and a (communication) interface; the processor is configured to execute the method in any one of the above method embodiments. It should be understood that the above processing device may be one or more chips.

According to the method provided in the embodiment of the present application, the present application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code is executed by one or more processors, the The device executes the method provided in any one of the foregoing method embodiments.

The technical solutions provided by the embodiments of the present application may be fully or partially implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention will be generated in whole or in part. The computer may be a general computer, a dedicated computer, a computer network, a network device, a terminal device, a core network device, a machine learning device or other programmable devices. The computer instructions may be stored in, or transmitted from, one computer-readable storage medium to another computer-readable storage medium.

According to the method provided in the embodiment of the present application, the present application also provides a computer-readable storage medium, the computer-readable storage medium stores program code, and when the program code is run by one or more processors, the processing includes the The device of the device executes the method provided by any one of the above method embodiments.

According to the method provided in the embodiment of the present application, the present application further provides a system, which includes the aforementioned one or more network devices. The system may further include the aforementioned one or more terminal devices.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A wireless communication method, characterized in that, comprising:

receiving configuration information, where the configuration information is used to configure a first configuration authorization resource, the first configuration authorization resource is a periodic resource, and the first configuration authorization resource occupies multiple time units within a period;

Sending a channel repetition in each time unit of K time units, the plurality of time units comprising the K time units, the channel repetition comprising data channel repetition or control channel repetition,

Wherein, every consecutive T time units starting from the starting time unit in the plurality of time units belong to the same time unit group, the K time units belong to at least one of the time unit groups, and the at least one of the time units The transmission parameters of the channel repetition transmitted in one time unit group in the unit group remain unchanged, and the transmission parameters include one or more items of transmission phase, transmission power or average power, K is an integer greater than 1, and T is An integer greater than 1.
The method according to claim 1, wherein the repetition period of the redundant version 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 redundant version in the plurality of redundant versions corresponds to one time unit in 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 the M and the T, and N is a positive integer.
The method according to claim 1 or 2, wherein the repetition period of the redundancy version in the redundancy version sequence corresponding to the plurality of time units is M, wherein the redundancy version sequence includes a plurality of redundancy A redundant version in the plurality of redundant versions corresponds to a time unit in the plurality of time units, where the M is an integer multiple of the T.
The method according to any one of claims 1 to 3, characterized in that the number T of time units in which the sending parameters remain unchanged is predefined.
The method according to any one of claims 1 to 3, wherein the method further comprises:

receiving first indication information, where the first indication information is used to indicate the number T of time units in which the transmission parameters corresponding to the first configuration authorization resource remain unchanged.
The method according to claim 5, wherein the configuration information includes the first indication information; or,

The first indication information is carried in downlink control information, and the downlink control information is used to activate the first configuration authorization resource,

Wherein, the configuration information is an RRC message.
The method according to claim 6, wherein the configuration information includes second indication information, and the second indication information is used to indicate the number of time units in which the transmission parameters corresponding to the first configuration authorization resources remain unchanged. candidate quantities, the first indication information is carried in the downlink control information, and the downlink control information specifically indicates the quantity T from the multiple candidate quantities.
The method according to claim 5 or 6, wherein the configuration information is used to configure multiple groups of configuration authorization resources, the first configuration authorization resource is one of the multiple groups of configuration authorization resources, and the The configuration information is also used to configure the number of time units in which the sending parameters corresponding to each group of configuration authorization resources in the multiple groups of configuration authorization resources remain unchanged.
A wireless communication method, characterized in that, comprising:

Sending first configuration information, the first configuration information is used to configure a first configuration authorization resource, the first configuration authorization resource is a periodic resource, and the first configuration authorization resource occupies multiple time units in one cycle;

Receive multiple channel repetitions from the terminal device at the multiple time units, the channel repetitions include data channel repetitions or control channel repetitions, and the channel repetitions include reference signals;

jointly estimating channel information of an air interface channel corresponding to the first time unit group according to the reference signal in the time unit in the first time unit group,

Wherein, the multiple time units belong to multiple time unit groups, and each consecutive T time units starting from the starting time unit among the multiple time units belong to the same time unit group, and T is the time unit of the joint channel estimation number, the multiple time unit groups include the first time unit group, and T is an integer greater than 1.
The method according to claim 9, wherein the first time unit group is the first time unit group including the repetition of the channel from the terminal device among the plurality of time unit groups,

The joint estimation of the channel information of the air interface channel corresponding to the first time unit group according to the reference signal in the time unit in the first time unit group includes:

determining at least two time units in the first group of time units that contain the channel repetition;

Jointly estimating channel information of air interface channels corresponding to the first time unit group according to the reference signals in the at least two time units.
The method according to claim 9 or 10, wherein the repetition period of the redundancy version in the redundancy version sequence corresponding to the plurality of time units is M, wherein the redundancy version sequence includes a plurality of redundancy version, one redundant version in the plurality of redundant versions corresponds to one time unit in the plurality of time units,

The first time unit group is the first time unit group that contains the channel repetition among the multiple time unit groups, and the first time unit in the first time unit group is the multiple time unit groups The Nth time unit in the group, N-1 is the common multiple of the M and the T, and N is a positive integer.
The method according to claim 11, wherein, according to the reference signal in the time unit in the first time unit group, jointly estimating the channel information of the air interface channel corresponding to the first time unit group includes :

determining that time units in the first group of time units comprise the channel repetition;

Jointly estimating channel information of air interface channels corresponding to the first time unit group according to the reference signal in each time unit in the first time unit group.
The method according to any one of claims 10 to 12, further comprising:

According to the reference signal in the time unit in the second time unit group, jointly estimate the channel information of the air interface channel corresponding to the second time unit group, the second time unit group is one of the plurality of time unit groups The group of time units following the first time unit.
The method according to any one of claims 9 to 13, wherein the repetition period of the redundant version in the redundant version sequence corresponding to the plurality of time units is M, wherein the redundant version sequence includes A plurality of redundancy versions, one redundancy version in the plurality of redundancy versions corresponds to one time unit in the plurality of time units, wherein the M is an integer multiple of the T.
The method according to any one of claims 9 to 14, characterized in that the number T of time units of the joint channel estimation is predefined.
The method according to any one of claims 9 to 14, further comprising:

Sending first indication information to the terminal device, where the first indication information is used to indicate the number T of time units of joint channel estimation corresponding to the first configured grant resource.
The method according to claim 16, wherein the configuration information includes the first indication information; or,

The first indication information is carried in downlink control information, and the downlink control information is used to activate the first configuration authorization resource,

Wherein, the configuration information is an RRC message.
The method according to claim 17, wherein the configuration information includes second indication information, and the second indication information is used to indicate a plurality of time units of joint channel estimation corresponding to the first configuration authorization resource. The number of candidates, the first indication information is carried in the downlink control information, and the downlink control information specifically indicates the number T from the multiple candidate numbers.
The method according to any one of claims 9 to 18, wherein the configuration information is used to configure multiple groups of configuration authorization resources, and the first configuration authorization resource is one of the multiple groups of configuration authorization resources. group, the configuration information is also used to configure the number of time units for joint channel estimation corresponding to each group of configuration authorization resources in the multiple groups of configuration authorization resources.
A communication device, characterized by comprising:

A transceiver unit, configured to receive configuration information, the configuration information is used to configure a first configuration authorization resource, the first configuration authorization resource is a periodic resource, and the first configuration authorization resource occupies multiple time units in one cycle ;

a processing unit, configured to determine a first configuration authorization resource according to the configuration information;

The transceiver unit is also used to send a channel repetition in each time unit of K time units, the multiple time units include the K time units, and the channel repetition includes data channel repetition or control channel repetition,

Wherein, every consecutive T time units starting from the starting time unit in the plurality of time units belong to the same time unit group, the K time units belong to at least one of the time unit groups, and the at least one of the time units The transmission parameters of the channel repetition transmitted in one time unit group in the unit group remain unchanged, and the transmission parameters include one or more items of transmission phase, transmission power or average power, K is an integer greater than 1, and T is An integer greater than 1.
The device according to claim 20, wherein the repetition period of the redundancy version in the redundancy version sequence corresponding to the plurality of time units is M, wherein the redundancy version sequence includes a plurality of redundancy versions, One redundant version in the plurality of redundant versions corresponds to one time unit in 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 the M and the T, and N is a positive integer.
The device according to claim 20 or 21, wherein the repetition period of the redundancy version in the redundancy version sequence corresponding to the plurality of time units is M, wherein the redundancy version sequence includes a plurality of redundancy A redundant version in the plurality of redundant versions corresponds to a time unit in the plurality of time units, where the M is an integer multiple of the T.
The device according to any one of claims 20 to 22, characterized in that the number T of time units in which the transmission parameters remain unchanged is predefined.
Apparatus according to any one of claims 20 to 22, characterized in that

The transceiving unit is further configured to receive first indication information, where the first indication information is used to indicate the number T of time units corresponding to the first configuration authorization resource in which the transmission parameters remain unchanged.
The device according to claim 24, wherein the configuration information includes the first indication information; or,

The first indication information is carried in downlink control information, and the downlink control information is used to activate the first configuration authorization resource,

Wherein, the configuration information is an RRC message.
The device according to claim 25, wherein the configuration information includes second indication information, and the second indication information is used to indicate the number of time units in which the transmission parameters corresponding to the first configuration authorization resources remain unchanged. candidate quantities, the first indication information is carried in the downlink control information, and the downlink control information specifically indicates the quantity T from the multiple candidate quantities.
The device according to claim 24 or 25, wherein the configuration information is used to configure multiple groups of configuration authorization resources, the first configuration authorization resource is one of the multiple groups of configuration authorization resources, and the The configuration information is also used to configure the number of time units in which the sending parameters corresponding to each group of configuration authorization resources in the multiple groups of configuration authorization resources remain unchanged.
A wireless communication device, characterized in that it includes:

A processing unit, configured to determine first configuration information, the first configuration information is used to configure a first configuration authorization resource, the first configuration authorization resource is a periodic resource, and the first configuration authorization resource is occupied within a period multiple time units;

a transceiver unit, configured to send the first configuration information;

The transceiver unit is further configured to receive multiple channel repetitions from the terminal device at the multiple time units, the channel repetitions include data channel repetitions or control channel repetitions, and the channel repetitions include reference signals;

jointly estimating channel information of an air interface channel corresponding to the first time unit group according to the reference signal in the time unit in the first time unit group,

Wherein, the multiple time units belong to multiple time unit groups, and each consecutive T time units starting from the starting time unit among the multiple time units belong to the same time unit group, and T is the time unit of the joint channel estimation number, the multiple time unit groups include the first time unit group, and T is an integer greater than 1.
The apparatus according to claim 28, wherein the first time unit group is the first time unit group including the repetition of the channel from the terminal device among the plurality of time unit groups, and, The processing unit is specifically used for:

determining at least two time units in the first group of time units that contain the channel repetition;

Jointly estimating channel information of air interface channels corresponding to the first time unit group according to the reference signals in the at least two time units.
The device according to claim 28 or 29, wherein the repetition period of the redundancy version in the redundancy version sequence corresponding to the plurality of time units is M, wherein the redundancy version sequence includes a plurality of redundancy version, one redundant version in the plurality of redundant versions corresponds to one time unit in the plurality of time units,

The first time unit group is the first time unit group that contains the channel repetition among the multiple time unit groups, and the first time unit in the first time unit group is the multiple time unit groups The Nth time unit in the group, N-1 is the common multiple of the M and the T, and N is a positive integer.
The device according to claim 30, wherein the processing unit is specifically used for:

determining that time units in the first group of time units comprise the channel repetition;

Jointly estimating channel information of air interface channels corresponding to the first time unit group according to the reference signal in each time unit in the first time unit group.
The device according to any one of claims 29 to 31, wherein the processing unit is further configured to jointly estimate the second time according to the reference signal in the time unit in the second time unit group The channel information of the air interface channel corresponding to the unit group, the second time unit group is a time unit group after the first time unit among the plurality of time unit groups.
The device according to any one of claims 28 to 32, wherein the repetition period of the redundant version in the redundant version sequence corresponding to the plurality of time units is M, wherein the redundant version sequence includes A plurality of redundancy versions, one redundancy version in the plurality of redundancy versions corresponds to one time unit in the plurality of time units, wherein the M is an integer multiple of the T.
The device according to any one of claims 28 to 33, wherein the number T of time units of the joint channel estimation is predefined.
The apparatus according to any one of claims 28 to 33, wherein the transceiver unit is further configured to send first indication information to the terminal equipment, the first indication information is used to indicate that the first The number T of time units for joint channel estimation corresponding to the authorized resource is configured.
The device according to claim 35, wherein the configuration information includes the first indication information; or,

The first indication information is carried in downlink control information, and the downlink control information is used to activate the first configuration authorization resource,

Wherein, the configuration information is an RRC message.
The apparatus according to claim 36, wherein the configuration information includes second indication information, and the second indication information is used to indicate a plurality of time units of joint channel estimation corresponding to the first configuration authorization resource. The number of candidates, the first indication information is carried in the downlink control information, and the downlink control information specifically indicates the number T from the multiple candidate numbers.
The device according to any one of claims 28 to 37, wherein the configuration information is used to configure multiple groups of configuration authorization resources, and the first configuration authorization resource is one of the multiple groups of configuration authorization resources. group, the configuration information is also used to configure the number of time units for joint channel estimation corresponding to each group of configuration authorization resources in the multiple groups of configuration authorization resources.
A communication device, characterized by comprising at least one processor coupled to a memory;

The memory is used to store programs or instructions;

The at least one processor is configured to execute the program or instructions, so that the device implements the method according to any one of claims 1-19.
A chip, characterized in that it includes at least one processor and a communication interface;

The communication interface is used to receive a signal input into the chip or a signal output from the chip, and the processor communicates with the communication interface and implements any one of claims 1 to 19 through a logic circuit or executing code instructions. method described in the item.
A computer-readable storage medium, characterized in that instructions are stored, and when the instructions are run on a computer, the computer is made to execute the method according to any one of claims 1 to 19.
A computer program product, characterized by comprising instructions, which, when run on a computer, cause the computer to execute the method according to any one of claims 1 to 19.