CN115734212A

CN115734212A - Signaling processing method and device

Info

Publication number: CN115734212A
Application number: CN202111016062.8A
Authority: CN
Inventors: 纪刘榴; 金黄平; 杭海存; 王潇涵
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2023-03-03
Also published as: WO2023030210A1

Abstract

The embodiment of the application relates to a signaling processing method and a device, wherein the method comprises the following steps: the method comprises the steps that terminal equipment receives a first parameter value from wireless access network equipment, wherein the first parameter value is the requirement for the capability of the terminal equipment for jointly processing a plurality of downlink control information DCI (downlink control information), the first parameter value is larger than a first preset value, the first parameter value is smaller than or equal to a second preset value, the first preset value is smaller than the second preset value, the first preset value is the minimum value of the number of nodes for scheduling the DCI, and the second preset value is the maximum value of the number of the nodes for scheduling the DCI; and the terminal equipment performs joint processing on the detected DCIs according to the first parameter value. When the terminal device has the capability of jointly processing multiple DCIs, the terminal device can jointly process the detected multiple DCIs, so that the demodulation performance is improved.

Description

Signaling processing method and device

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a signaling processing method and apparatus.

Background

A New Radio (NR) version 16 (Release 16, R16) introduces a multi-Downlink Control Information (DCI) technology. The terminal equipment supporting the multi-DCI technology can be simultaneously scheduled by a plurality of DCIs, and the terminal equipment can respectively carry out independent monitoring, blind detection, processing and the like on the plurality of DCIs.

The plurality of DCIs may come from different radio access network devices, so that the plurality of radio access network devices may schedule the terminal device through respective DCIs, thereby improving scheduling flexibility and transmission rate. However, there may be interference between Physical Downlink Shared Channels (PDSCHs) scheduled by multiple DCIs, which results in poor demodulation performance.

Disclosure of Invention

The application provides a signaling processing method and a signaling processing device, which are used for improving the demodulation performance of signaling.

In a first aspect, a signaling processing method is provided, which includes the following procedures: the terminal equipment receives a first parameter value from the wireless access network equipment, wherein the first parameter value is the requirement for the capability of the terminal equipment for jointly processing the plurality of DCIs, the first parameter value is larger than a first preset value, the first parameter value is smaller than or equal to a second preset value, and the first preset value is smaller than the second preset value. The terminal equipment can carry out joint processing on the detected DCIs according to the first parameter value.

The first parameter value relates to a capability of the terminal device to jointly process a plurality of DCIs. Generally, the first parameter value configured by the radio access network device does not exceed (i.e. is less than or equal to) the capability of the terminal device to jointly process multiple DCIs.

Optionally, a value of the first preset value and/or the second preset value is related to the number of nodes that transmit DCI. If the first preset value is the minimum value of the node number of the scheduling DCI, the second preset value is the maximum value of the node number of the scheduling DCI. For example, the first preset value is 1, and the second preset value is 2. The node sending the DCI may be a radio access network device (e.g., a base station or a cell), or may be a transmission point TRP or the like.

The terminal device may perform joint processing on all the DCIs in the multiple DCIs, or may perform joint processing on part of the DCIs in the multiple DCIs.

In the method, when the terminal device has the capability of jointly processing a plurality of DCIs, the terminal device can jointly process the detected plurality of DCIs according to the first parameter value configured by the wireless access network device, thereby improving the demodulation performance of the signaling.

In a possible implementation, if the HARQ processes of the first DCI and the second DCI in the multiple DCIs are the same, the terminal device may further perform joint processing on the first DCI and the second DCI. In this implementation, the terminal device may determine whether to perform joint processing on the PDSCH of the physical downlink shared channel corresponding to the multiple DCIs according to whether the HARQ processes scheduled by the multiple DCIs are the same. Wherein the HARQ process may be represented by a HARQ number.

In a possible implementation, if HARQ processes of a first DCI and a second DCI in the multiple DCIs are different, the terminal device may further process the first DCI and the second DCI respectively.

In one possible implementation, each DCI of the plurality of DCIs includes first indication information, and the first indication information is used for indicating a code word number. The optional codeword number may be 1 or 2.

In a possible implementation, when the terminal device performs joint processing on a plurality of detected DCIs, the terminal device may demodulate, according to scheduling information of one DCI of the plurality of DCIs, a PDSCH of a physical downlink shared channel of the remaining DCIs of the plurality of DCIs respectively; or for one DCI of the multiple DCIs, the terminal device demodulates the PDSCH of the DCI according to the scheduling information of one or more DCI of the rest DCIs of the multiple DCIs; or may determine PDSCH of multiple DCI according to scheduling information of multiple DCI, and demodulate PDSCH. In this implementation, multiple possible modes of joint processing are provided, for example, the terminal device may demodulate multiple PDSCHs respectively, or may demodulate multiple PDSCHs as one PDSCH, which may improve the flexibility of DCI processing.

In one possible implementation, before receiving the first parameter value from the radio access network device, the terminal device may further send, to the radio access network device, a capability of the terminal device to jointly process multiple DCIs. In this implementation, the terminal device sends the capability of jointly processing multiple DCIs to the radio access network device, and the radio access network device may configure the requirement of jointly processing multiple DCIs, that is, the first parameter value, for the terminal device according to the capability of the terminal device.

In a possible implementation, the terminal device may further determine the HARQ feedback delay according to the processing delays of the multiple DCIs, where the processing delays of the multiple DCIs are greater than the processing delay of a single DCI, and the terminal device performs HARQ feedback after the HARQ feedback delay. Generally, the complexity of processing multiple DCIs is greater than that of processing a single DCI, and the time duration required for processing multiple DCIs also greater than that required for processing a single DCI. The terminal device may feed back HARQ-ACK if the terminal device successfully receives the downlink data, and may feed back HARQ-NACK if the terminal device does not successfully receive the downlink data.

In a second aspect, a signaling processing method is provided, which includes the following procedures: the method comprises the steps that a first reference value is determined by the wireless access network equipment, a first parameter value is the requirement of the terminal equipment for the capacity of jointly processing a plurality of DCIs, the first parameter value is larger than a first preset value and smaller than a second preset value, the first preset value is the minimum value of the number of nodes for scheduling the DCIs, the second preset value is the maximum value of the number of the nodes for scheduling the DCIs, the first preset value is smaller than the second preset value, and the wireless access network equipment sends the first reference value to the terminal equipment.

Optionally, the first preset value is 1, and the second preset value is 2.

In one possible implementation, before the radio access network device determines the first reference value, the capability of the terminal device to jointly process multiple DCIs may be further received from the terminal device.

In a third aspect, a communication apparatus is provided, where the communication apparatus may be the terminal device or the radio access network device, or a chip disposed in the terminal device or the radio access network device. The communication device may implement the method of the first aspect or the second aspect.

The communication device includes corresponding modules, units, or means (means) for implementing the above methods, and the modules, units, or means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

In a fourth aspect, a communication device is provided that includes a transceiver unit. Optionally, the communication device further comprises a processing unit. The communication device may implement the method of the first or second aspect.

In a fifth aspect, a communications apparatus is provided that includes a processor. The processor may be adapted to perform the method of the first or second aspect.

Optionally, the apparatus further comprises a memory, the processor being coupled to the memory, the processor being operable to execute instructions in the memory to cause the apparatus to perform the method of the first or second aspect.

Optionally, the apparatus further comprises an interface circuit, the processor being coupled to the interface circuit.

The interface circuit may be a code/data read/write interface circuit, which is configured to receive and transmit computer-executable instructions (which are stored in a memory, may be directly read from the memory, or may pass through other devices) to the processor, so that the processor executes the computer-executable instructions to perform the method of any of the above aspects.

In some possible designs, the communication device may be a chip or a system of chips.

In a sixth aspect, a communications apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory, and may receive signals via the receiver and transmit signals via the transmitter to perform the method of the first or second aspect.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor.

In a specific implementation process, the memory may be a non-transient memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

The communication device may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

In a seventh aspect, a processor is provided, including: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal via the input circuit and transmit a signal via the output circuit, such that the processor performs the method of the first or second aspect.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

In an eighth aspect, there is provided a communication apparatus comprising: the communication device comprises a logic circuit and an input/output interface, wherein the input/output interface is used for communicating with a module outside the communication device; the logic circuitry is configured to run a computer program to perform the method of any of the above aspects. The communication device may be the terminal device or the radio access network device in the first aspect or the second aspect, or a device including the terminal device or the radio access network device, or a device included in the terminal device or the radio access network device, such as a chip.

Alternatively, the input/output interface may be a code/data read/write interface circuit, and the input/output interface is used for receiving a computer program (the computer program is stored in a memory, may be directly read from the memory, or may pass through other devices) and transmitting the computer program to the input/output interface, so that the input/output interface runs the computer program to execute the method of any one of the above aspects.

Alternatively, the communication device may be a chip.

In a ninth aspect, there is provided a computer program product comprising: a computer program (also referred to as code, or instructions), which when executed, causes a computer to perform the method of the first or second aspect.

A tenth aspect provides a computer-readable medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of the first or second aspect.

In an eleventh aspect, a chip system is provided, which comprises a processor and an interface, and is configured to enable a communication apparatus to implement the functions recited in the first aspect or the second aspect. In one possible design, the chip system further comprises a memory for storing necessary information and data of the aforementioned communication means. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a twelfth aspect, a functional entity is provided for implementing the method in the first to second aspects.

In a thirteenth aspect, a communication system is provided, which includes the terminal device and the radio access network device of the first or second aspect.

The technical effects brought by any one of the design manners of the third aspect to the thirteenth aspect can be referred to the technical effects brought by the first aspect, and are not described herein again.

Drawings

FIG. 1 is a block diagram of a communication system;

fig. 2 is a schematic process diagram of signaling processing according to an embodiment of the present application;

fig. 3 is a schematic diagram of overlapping time-frequency resources according to an embodiment of the present application;

fig. 4 is a schematic diagram of a signaling process provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings.

This application is intended to present various aspects, embodiments or features around a system that may include a number of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, a combination of these schemes may also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

Some terms of the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

1) And the terminal equipment is used for realizing the equipment with the wireless communication function. A terminal may be a User Equipment (UE), an access terminal, a terminal unit, an end station, a mobile station, a remote terminal, a mobile device, a wireless communication device, a terminal agent, or a terminal equipment, etc., in a fifth generation (5 g) network or a future evolved Public Land Mobile Network (PLMN). The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device or a wearable device, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transport security (smart security), a wireless terminal in city (city), a wireless terminal in smart home (home), etc. Alternatively, the terminal may be a terminal (e.g., a vehicle-to-internet Device) in a vehicle-to-electrical (V2X) network, a terminal in a Device-to-Device (Device-to-Device) communication, a terminal in a machine-to-machine (M2M) communication, or the like. The terminal may be mobile or stationary.

2) The network device is a device for accessing the terminal device to the wireless network. The network device may be a node in a radio access network, which may also be referred to as a base station, and may also be referred to as a Radio Access Network (RAN) device (or node). For example, the network device may include an evolved Node B (NodeB or eNB or eNodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), such as a traditional macro base station eNB and a micro base station eNB in a heterogeneous network scenario; or may also include a next generation Node B (gNB) in a 5G New Radio (NR) system, or may also include a Transmission Reception Point (TRP), a home base station (e.g., home evolved NodeB or home Node B, HNB), a baseband unit (BBU), a baseband pool BBU, or a wireless fidelity (Wi-Fi) Access Point (AP), etc.; still alternatively, a Centralized Unit (CU) and a Distributed Unit (DU) in a cloud access network (cloudlan) system may be further included; or may include a network device in a non-terrestrial network (NTN), that is, the network device may be deployed in a high altitude platform or a satellite, and in the NTN, the network device may serve as a layer 1 (L1) relay (relay), or may serve as a base station, or may serve as a DU, or may serve as an Integrated Access and Backhaul (IAB) node, which is not limited in the embodiment of the present application.

Where TRP is the transmission point for gNB.

Of course, the network device may also be a node in the core network.

3) In the Physical Downlink Control Channel (PDCCH) blind detection, a terminal device may determine a candidate time-frequency position of the PDCCH through a control resource set (core set) and a search space (search space), and since the terminal device does not know a time-frequency position where the PDCCH is actually located, the terminal device attempts to decode a PDCCH candidate (candidate) at the candidate time-frequency position, so the process is called PDCCH blind detection. And if the terminal equipment successfully decodes the PDCCH candidates, the terminal equipment determines that the PDCCH is detected and stops the blind detection process. Wherein the information that the terminal device has received and attempted to decode once at a time-frequency location is referred to herein as a PDCCH candidate.

The PDCCH is used to carry downlink scheduling information. Here, downlink scheduling information carried on the PDCCH is referred to as Downlink Control Information (DCI). On PDCCH, a basic unit for carrying DCI is a Control Channel Element (CCE), where the CCE is composed of 6 Resource Element Groups (REGs), a resource of one REG is composed of 4 REs, 1 RE is 1 subcarrier in frequency domain, and 1 Orthogonal Frequency Division Multiplexing (OFDM) symbol in time domain. A general Resource Block (RB) is 12 subcarriers in a frequency domain and 1 slot in a time domain.

The DCI is used to schedule the PDSCH, e.g., the DCI indicates the time-frequency location where the PDSCH is located. The process of processing the DCI by the terminal device means that the terminal device attempts to demodulate the PDSCH according to the time-frequency position of the PDSCH included in the DCI, and the terminal device can acquire downlink data carried by the PDSCH after successfully demodulating the PDSCH. Optionally, if the terminal device determines that interference may exist between time-frequency positions of PDSCHs included in the multiple DCIs, the terminal device may further perform interference cancellation or interference suppression when demodulating the PDSCHs.

The terminal device may also perform hybrid automatic repeat request (HARQ) feedback to the radio access network device according to whether the downlink data is correctly received. If the terminal device successfully receives the downlink data, the terminal device may send HARQ-Acknowledgement (ACK) feedback to the radio access network device, and if the terminal device does not successfully receive the downlink data, the terminal device may send HARQ-non-acknowledgement (NACK) feedback to the radio access network device.

4) CORESET, which defines the possibility of detecting PDCCH in frequency domain, i.e. the information such as frequency domain resources occupied in PDCCH frequency domain is encapsulated in CORESET. The radio access network device may configure information such as an identifier of the CORESET, a scrambling Identifier (ID) of a demodulation reference signal (DMRS) of the PDCCH, a frequency domain precoding granularity, a symbol length, a frequency domain position, a mapping manner between the CCE and the REG, a quasi co-location assumption of the received PDCCH, and whether or not a Transmission Configuration Index (TCI) state exists in the DCI of the PDCCH received in the CORESET.

5) search space, defines the possibility in the time domain to detect PDCCH. The radio access network device may configure the terminal device with an identifier of the search space, an identifier of the associated CORESET, a detection period of the PDCCH, a time unit period, a time unit offset (offset), a time domain detection pattern (pattern), the number of possible PDCCH candidates for each aggregation level (which may be 0), a type of the search space (e.g., common search space, UE-specific search space), a configuration related to a DCI format, a continuous length, and the like. The time domain detection pattern is used to indicate a starting symbol position of a terminal device that may detect the PDCCH in one slot (slot), for example, the time domain detection pattern may indicate one or more symbol positions. The one or more symbol positions may correspond to a first symbol position of a possible PDCCH start, e.g., the time domain detection pattern may indicate symbol positions l1, l2, and l3, and the terminal device may detect the PDCCH at positions starting with l1, l2, or l3, respectively. The number of PDCCH candidates possible for each aggregation level refers to the number of PDCCH candidates possible for different aggregation levels (e.g., 1,2,4,8, and 16) in a search space that the radio access network device can configure to the terminal device. The continuous length refers to the duration of this Search Space in the time domain unit. Taking the time domain unit as a time slot as an example, if the period configured by the radio access network device is k and the duration length is d, the terminal device starts at a slot satisfying the detection period of the search space and the time domain offset, and the PDCCH can be detected in the search space for d slots.

The time unit/time domain unit according to the embodiment of the present application may include one or more time units, for example, a frame, a radio frame, a system frame, a subframe, a half frame, a slot, a mini-slot, a symbol, and the like.

6) Quasi co-location (QCL), a co-location relationship is used to indicate that a plurality of resources have one or more identical or similar communication characteristics, and for a plurality of resources having a co-location relationship, the same or similar communication configuration may be adopted. For example, if two antenna ports have a co-located relationship, the channel large scale characteristic of one port transmitting one symbol can be inferred from the channel large scale characteristic of the other port transmitting one symbol. The large scale features may include: one or more of average gain (average gain), average delay (average delay), delay spread (delay spread), doppler shift (Doppler shift), doppler spread (Doppler spread), spatial parameters (spatial parameters, or spatial Rx parameters), and the like.

The spatial parameters may include one or more of an emission Angle (AOD), a main emission Angle (Dominant AOD), an Average emission Angle (Average AOD), an arrival Angle (Angle of arrival, AOA), a main arrival Angle (Dominant AOA), an Average arrival Angle (Average AOA), a channel correlation matrix, a power Angle spread spectrum of an arrival Angle, a power Angle spread spectrum of a departure Angle, a transmit channel correlation, a receive channel correlation, transmit beamforming, receive beamforming, a spatial channel correlation, a spatial filter, spatial filtering parameters, or spatial receiving parameters.

The parity indication is used for indicating whether at least two antenna ports have a parity relationship: the co-located indication is used for indicating whether the channel state information reference signals sent by the at least two groups of antenna ports are from the same transmission point or not, or the co-located indication is used for indicating whether the channel state information reference signals sent by the at least two groups of antenna ports are from the same beam group or not. That is, if the QCL relationship exists, the terminal device may inherit the reception or transmission parameters of a previous reception of a certain reference signal to receive or transmit a subsequent signal.

"and/or" in the present application, describing an association relationship of associated objects, means that there may be three relationships, for example, a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the present application, the term "at least one" means one or more, and the term "plurality" means two or more.

In addition, it is to be understood that the terms first, second, etc. in the description of the present application are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order.

The technical scheme of the embodiment of the application can be applied to a wireless communication system, for example: the wireless communication system may be a fourth generation (4 g) communication system (e.g., long Term Evolution (LTE) system), a fifth generation (5 g) communication system (e.g., NR system), a future mobile communication system, and so on. The technical scheme of the embodiment of the application can also be applied to a satellite communication system, wherein the satellite communication system can be fused with a wireless communication system.

The communication system provided by the embodiment of the application is suitable for communication between the wireless access network equipment and the terminal equipment. One or more radio access network devices, and one or more terminal devices may be included in the communication system. For example, as shown in fig. 1, a communication system may include two radio access network devices (e.g., TRP1 and TRP 2), and a plurality of terminal devices (e.g., terminal device 110). TRP1 and TRP2 communicate with terminal device 110 in common. Wherein, TRP1 may transmit downlink control information DCI1 and downlink data 1 to terminal device 110, and TRP2 may transmit DCI2 and downlink data 2 to terminal device 110. The communication system in the embodiment of the application can also be suitable for communication between the wireless access network equipment and the wireless access network equipment, communication between the terminal equipment and the terminal equipment, and communication of the Internet of vehicles, the Internet of things, the industrial Internet and the like.

To improve wireless spectrum utilization, multiple cells in a communication system are often deployed in the same frequency band. Thus, the terminal device may receive signals from multiple cells, and when the terminal device is located at the edge of the serving cell, the terminal device may be interfered by signals of neighboring cells (i.e., neighboring cells of the serving cell of the terminal device), which results in poor channel conditions. In order to better solve the interference between cells and improve the transmission rate, multiple Input and Multiple Output (MIMO) technology and coordinated multi-point (CoMP) technology are widely used.

NR introduces a multiple DCI (multi-DCI) technique. Taking fig. 1 as an example, the terminal device may establish a wireless link with TRP1 and TRP2 for communication at the same time, the terminal device 110 supporting multiple DCI technologies may be scheduled by multiple DCIs (e.g., DCI1 and DCI 2) at the same time, and the terminal device may process the multiple DCIs independently. And when the terminal equipment processes the DCI alone, demodulating the PDSCH according to the time-frequency position of the PDSCH indicated by the DCI. Interference may exist between time-frequency positions where the PDSCH indicated by the DCI is located, and the terminal device may not be able to accurately demodulate the PDSCH by separately processing the DCI, resulting in poor demodulation performance.

Based on this, the embodiment of the present application provides a signaling processing method, which may be applied to the communication system shown in fig. 1. The signaling processing method provided by the embodiment of the application is suitable for a multi-DCI processing scene. In the method, the terminal equipment has the capacity of jointly processing multiple DCIs, and can jointly process the detected multiple DCIs, thereby improving the demodulation performance of the signaling. When the terminal device jointly processes a plurality of DCIs, for one DCI, the PDSCH scheduled by the DCI can be demodulated according to the time-frequency position of the PDSCH indicated by other DCI, or the PDSCH scheduled by the DCI is demodulated as a whole PDSCH.

Fig. 2 is a possible signaling processing procedure provided in an embodiment of the present application, where the procedure includes:

s201: and the terminal equipment reports the capability information. Wherein the capability information of the terminal device is used for indicating that the terminal device has the capability of jointly processing the multi-DCI. For example, the capability information of the terminal device may include: and the second indication information is used for indicating that the terminal equipment has the capacity of jointly processing the multi-DCI, or the capacity degree of the terminal equipment for jointly processing the multi-DCI. The capability degree of the terminal device for jointly processing the multiple DCIs may refer to the number of TRPs for scheduling the DCI jointly processed by the terminal device, that is, the terminal device can jointly process the multiple TRP scheduled DCIs at most, or may refer to the number of DCI which the terminal device can jointly process, that is, the terminal device can jointly process the multiple DCI at most, or may refer to the capability of the terminal device for detecting the jointly processed DCI. The terminal equipment with the capacity of jointly processing the multi-DCI supports the multi-DCI technology.

Correspondingly, the wireless access network equipment receives the capability information.

S201 is an optional step. The terminal device may directly report the capability information in S201, so that the radio access network device may obtain the capability information of the terminal device. For example, the capability information may be provided when the terminal device first accesses the radio access network device. If the terminal device does not report the capability information (i.e., when S201 does not exist), the radio access network device may acquire the capability information of the terminal device in other manners, for example, the radio access network device may determine the capability information of the terminal device according to the model of the terminal device or the protocol version supported by the terminal device (for example, the terminal device supporting a specific protocol version has the capability of jointly processing multiple DCIs by default), or the radio access network device may determine the capability information of the terminal device from the capability information of the terminal device of other radio access network devices (for example, core network devices or network management devices), or the capability information of the terminal device is preconfigured in the radio access network device, and the like, which is not limited herein. In the embodiment of the present application, the reporting capability information of the terminal device is mainly taken as an example for explanation.

The capability information of the terminal device is explained below.

In one example, the capability information of the terminal device includes second indication information indicating that the terminal device has a capability of jointly processing a plurality of DCIs. For example, 1bit is adopted to indicate the capability of the terminal device, when the 1bit is taken as 1, the terminal device has the capability of jointly processing a plurality of DCIs, and when the 1bit is taken as 0, the terminal device does not have the capability of jointly processing a plurality of DCIs, and the terminal device can only independently process a single DCI. Optionally, the radio access network device is preconfigured with the capability degree of the terminal device for jointly processing multiple DCIs, so that when the capability information of the terminal device only includes the second indication information, the radio access network device may also know the capability of the terminal device.

In another example, the capability information of the terminal device includes a capability degree of the terminal device to jointly process a plurality of DCIs. Optionally, the capability degree of the terminal device for jointly processing multiple DCIs may be represented by a parameter r. Optionally, the parameter value of r is greater than the first preset value and less than or equal to the second preset value, and the first preset value is less than the second preset value. At this time, the radio access network device can obtain the capability degree of joint processing of a plurality of DCIs that the terminal device has according to the parameter r reported by the terminal device. The first preset value and the second preset value are any integers, and the value of the selectable first preset value and the value of the second preset value are related to the number of TRPs for scheduling DCI jointly processed by the terminal equipment or the number of DCI scheduled by the TRPs or the processing capacity of the terminal equipment. For example, the communication system has two TRPs to perform DCI scheduling on the terminal device, the second preset value may be the maximum value of the possible number of TRPs, for example, the second preset value is 2, the first preset value may be the minimum value of 1 of the possible number of TRPs, for example, the first preset value is 1, that is, 1 ≦ r ≦ 2.

The capability degree of the terminal device for jointly processing multiple DCIs may refer to the number r of TRPs for scheduling the DCI jointly processed by the terminal device, that is, the terminal device can jointly process the DCI scheduled by r TRPs at most. For example, when the control channel processing parameter r is 2, it indicates that the terminal device can jointly process DCI scheduled by 2 TRP. It is understood that r is a natural number greater than 1.

The capability degree of the terminal device for jointly processing multiple DCIs may refer to the number r of DCIs that the terminal device can jointly process, that is, the terminal device can jointly process at most r DCIs.

Or the capability degree of the terminal device for jointly processing multiple DCIs may refer to that the capability that the terminal device can adopt for detecting the jointly processed DCI is r, that is, the terminal device can detect the jointly processed DCI with r times capability, where the terminal device jointly processes the DCI detected with r times capability. For example, the maximum number of CCEs and/or PDCCH candidates that can be detected by the terminal device on one carrier may be understood as 1 times the capability of the terminal device, i.e. r times the maximum number of CCEs and/or PDCCH candidates that can be detected by the terminal device. The maximum number of CCEs and/or PDCCH candidates that a terminal device can detect on one carrier is described below.

The plurality of DCIs jointly processed may be a plurality of DCIs detected by the terminal device on one carrier, or may be DCIs detected by the terminal device on a plurality of carriers. The process of detecting multiple DCIs by the terminal device needs to consume processing resources of the terminal device, and the terminal device needs to spend a period of time to complete, so that the terminal device can inform the wireless access network device of the capability of jointly processing the multiple DCIs that the terminal device has by reporting the capability information, and the wireless access network device can configure and send a control channel for the terminal device within a period of time to ensure that the terminal device detects the control channel.

Since the terminal device can perform joint processing on the detected DCI, the capability of the terminal device to jointly process a plurality of DCIs can be represented by the capability of detecting CCEs (e.g., the maximum number of CCEs that can be processed) and/or the capability of detecting PDCCH candidates (e.g., the maximum number of PDCCH candidates that can be processed). One PDCCH candidate occupies one or more CCEs. Generally, the capability of detecting CCE embodies the capability of the terminal device to perform channel estimation, for example, the terminal device may perform channel estimation on DMRS of how many resources; the ability to detect PDCCH candidates represents the decoding capability of the terminal device, e.g. at least one decoding operation is performed for PDCCH candidates regardless of how many resources are occupied.

Optionally, the capability of the terminal device is related to the number of carriers.

In one case, a terminal device supports a single serving cell (also referred to as a single cell or a serving cell) which refers to a single Component Carrier (CC), i.e., the terminal device only processes one carrier.

CCE detection capability of the terminal device for one carrier is shown in table 1, μ e {1,2,3, }4 denotes different numerologies (parameter sets), μ is 0 for numerology at 15 kilohertz (kHz) subcarrier spacing, the terminal device is on a 15kHz numerology carrier, the maximum number of CCEs that can be processed is 56, μ is 1 for numerology at 30kHz subcarrier spacing, the terminal device is on a 30kHz numerology carrier, the maximum number of CCEs that can be processed is 56, μ is 2 for numerology at 60kHz subcarrier spacing, the terminal device is on a 60kHz numerology carrier, the maximum number of CCEs that can be processed is 48, μ is 3 for numerology at 120kHz subcarrier spacing, the terminal device is on a 120kHz subcarrier spacing carrier, the maximum number of CCEs that can be processed is 32.

TABLE 1

Terminal device detection capability for PDCCH candidates for one carrier as shown in table 2, the maximum number of PDCCH candidates that can be processed by the terminal device on a 15kHz numerology carrier is 44, the maximum number of PDCCH candidates that can be processed by the terminal device on a 30kHz numerology carrier is 36, the maximum number of PDCCH candidates that can be processed by the terminal device on a 60kHz numerology carrier is 22, and the maximum number of PDCCH candidates that can be processed by the terminal device on a 120kHz numerology carrier is 20.

TABLE 2

μ	Maximum number of PDCCH candidates that can be processed
		0	44
1	36
		2	22
3	20

It is to be understood that tables 1 and 2 show the detection capability of the terminal device in a time unit of a time slot, and may also extend to the detection capability in other time units (e.g. in several symbols in a time slot), which is not limited herein.

For convenience of description, in the embodiment of the present application, the maximum number of CCEs that can be processed on a single cell is also referred to as single-cell CCE processing capability, and refers to the maximum number of non-overlapping CCEs that can be processed by a terminal device in each slot of one serving cell. The maximum number of PDCCH candidates that can be processed by the single-cell PDCCH candidate processing capability in a single cell is also referred to as a single-cell PDCCH candidate processing capability, and refers to the maximum number of PDCCH candidates that can be processed by the terminal device in each time slot of a serving cell. Wherein the non-overlapping CCEs of PDCCH candidates comprise different CORESET identifications corresponding to the CCEs of the PDCCH candidates and/or different starting symbol positions for receiving the PDCCH candidates.

In one case, the terminal device supports multiple carriers and the number of carriers is small, and the capability supported by the terminal device increases linearly with the number of carriers. The smaller number of carriers means that the number of carriers is less than or equal to (or less than) a set carrier threshold, wherein the set carrier threshold is arbitrary, for example, the set carrier threshold may be 4.

For example, the terminal device supports n carriers, the maximum number of PDCCH candidates supported by the terminal device under the n carriers is 44n, and the maximum number of CCEs supported by the terminal device is 56n, where n is a positive integer. When n is 2, the maximum number of detected PDCCH candidates supported by the terminal device on 2 carriers is 44 × 2=88, and the maximum number of CCEs supported for detection is 46 × 2= 112.

In one case, where the terminal device supports multiple carriers and the number of carriers is large, the terminal device may use a factor as the allocable capacity of all cells, which may be allocated among multiple carriers. This coefficient can be considered as the total capability coefficient for control channel detection. The number of carriers is more than the number of carriers greater than (or equal to or greater than) the set carrier threshold. For example, the terminal device supports 5 carriers, and reports a coefficient of 4, which indicates that all the cell allocable capabilities include a 4 × single-cell CCE processing capability and/or a 4 × single-cell PDCCH candidate detection capability, where the 4 × single-cell CCE processing capability and/or the 4 × single-cell PDCCH candidate detection capability are allocated among 5 carriers.

The maximum number of PDCCH candidates supported by the terminal device is:

wherein

The maximum number of PDCCH candidates supported for the terminal device,

the total capacity coefficient for the control channel detection reported by the terminal equipment,

being the maximum number of PDCCH candidates that can be processed,

the number mu of cells corresponding to the downlink numerology,

the number j of cells corresponding to the downlink numerology.

The maximum number of CCEs supported by the terminal equipment is as follows:

wherein

Maximum number of CCEs supported by terminal equipment，

The maximum number of CC candidates that can be processed.

For example, the capability of the terminal device to detect DCI of one carrier is shown in table 1 and table 2, which means that the terminal device has 1 time of capability, the communication system includes two TRPs, r reported by the terminal device is 1.5, which indicates that the terminal device can detect DCI by using the 1.5 times of capability at most, and the corresponding radio access network device can configure two TRPs to transmit DCI by using the 1.5 times of capability on the carrier at most. In a possible manner, the terminal device may use 1.5 times of capability to detect all DCI of the carrier, and perform joint processing on the detected DCI. In another possible approach, the terminal device may detect multiple DCIs with the remaining partial capability, for example, the remaining capability is 0.5 times, that is, when two TRPs share 1.5 times capability to transmit the DCI, for each TRP, the terminal device may allocate 0.75 times capability detection DCI, where 0.25 (obtained by dividing 0.5 by 2) times capability detection DCI in 0.75 times allocated by the terminal device is used for joint processing, and the allocated 0.5 times capability detection DCI is used for independent processing.

S202: the radio access network device determines a first parameter value.

The radio access network device may determine the first parameter value according to the acquired capability information of the terminal device. The process of acquiring the capability information of the terminal device by the radio access network device may be referred to in S201, that is, if the terminal device reports the capability information, the radio access network device may directly acquire the capability information reported by the terminal device, and if the terminal device does not report the capability information, the radio access network device may acquire the capability information of the terminal device in other manners. The first parameter value is used for configuring the capability of the terminal device for jointly processing multiple DCIs, that is, the first parameter value is used for indicating the requirement of the wireless access network device on the capability of the terminal device for jointly processing multiple DCIs. The first parameter value is related to the capability of the terminal device to jointly process the plurality of DCIs, and the first parameter value does not exceed (i.e. is less than or equal to) the capability degree of the terminal device to jointly process the plurality of DCIs, namely R is less than or equal to R, and R is the first parameter value. For example, the first parameter value is greater than the first preset value and less than or equal to the second preset value, and the first parameter value is less than or equal to the capability degree of the terminal device for jointly processing the multiple DCIs, and the first preset value is less than the second preset value. And when 1< -R is less than or equal to 2, the wireless access network equipment requests the terminal equipment to perform joint processing on the DCI by R times of capacity, and R is 1, the wireless access network equipment requests the terminal equipment to perform independent processing on the DCI.

S203: the radio access network device transmits the first parameter value.

Correspondingly, the terminal equipment receives the first parameter value.

S204: the terminal device detects the plurality of DCIs.

The terminal device may monitor PDCCH candidates, possibly in one or more CORESET, on one or more carriers. When monitoring the PDCCH candidates, the terminal equipment determines the possible positions of the PDCCH candidates according to CORESET and search space, the wireless access network equipment may send DCI on the PDCCH candidates, the terminal equipment tries to demodulate the information on the positions of the PDCCH candidates, if the demodulation is successful, the terminal equipment indicates that the blind detection of the terminal equipment is successful, and the terminal equipment can perform combined processing on a plurality of detected DCI.

Optionally, the capability of the terminal device to detect DCI may also be related to the first parameter value, that is, the terminal device may detect multiple DCIs according to the first parameter value. Taking the above as an example, the radio access network device configures two TRPs to transmit DCI, and correspondingly, the radio access network device configures R =1.5 for the terminal device, and informs the terminal device to adopt 1.5 times of capability when jointly processing multiple DCI, for example, for each TRP, the terminal device may adopt 0.75 times of capability to detect DCI.

S205: and the terminal equipment performs joint processing on the plurality of DCIs.

And the terminal equipment performs joint processing on the detected DCI according to the capacity, indicated by the first parameter value, of the terminal equipment used in joint processing of the multiple DCIs. The joint processing of the plurality of DCIs by the terminal equipment corresponds to joint processing of part or all of the plurality of DCIs by the terminal equipment. When jointly processing multiple DCIs, the terminal device may demodulate multiple PDSCHs respectively, for example, for one of the DCI, the terminal device may demodulate the PDSCH scheduled by the DCI according to the time-frequency position of the PDSCH indicated by other DCI(s) in the multiple DCIs; as another example, for one DCI, the PDSCH scheduled by other DCI(s) in the multiple DCIs may be demodulated according to the time-frequency position of the PDSCH indicated by the DCI; or the terminal device may demodulate the multiple PDSCHs as one PDSCH, for example, determine one PDSCH corresponding to the multiple DCI according to the time-frequency positions of the PDSCHs indicated by the multiple DCI, demodulate one PDSCH corresponding to the multiple DCI, and the like.

And each DCI independently schedules the PDSCH, the PDSCH carries data, and the time-frequency position of the PDSCH is indicated by the DCI. In a possible case, for example, the terminal device may determine whether there is interference between the multiple DCI scheduled PDSCHs according to the time-frequency positions of the multiple DCI scheduled PDSCHs. If interference exists among the multiple PDSCHs, the terminal equipment can demodulate the PDSCHs with the interference respectively to realize interference elimination or interference suppression, so that the demodulation performance is improved. The multiple PDSCHs respectively scheduled by the multiple DCIs may be completely overlapped, partially overlapped, or completely non-overlapped at time-frequency positions, interference exists between the completely overlapped and partially overlapped PDSCHs at the time-frequency positions, and interference does not exist between the completely non-overlapped PDSCHs at the time-frequency positions.

For example, in fig. 3, the hatched area of the horizontal line indicates TRP1 available resources, the hatched area of the vertical line indicates TRP2 available resources, as shown in (a) of fig. 3, the TRP1 available resources and the TRP2 available resources do not overlap, PDSCH1 scheduled by DCI1 transmitted by TRP1 and PDSCH2 scheduled by DCI2 transmitted by TRP2 do not overlap at all in the frequency domain, as shown in (b) of fig. 3, the TRP1 available resources and TRP2 available resources overlap partially, PDSCH1 scheduled by DCI1 transmitted by TRP1 and PDSCH2 scheduled by DCI2 transmitted by TRP2 overlap partially in the time domain, as shown in (c) of fig. 3, the TRP1 available resources and TRP2 available resources overlap completely, and PDSCH1 scheduled by DCI1 transmitted by TRP1 and PDSCH2 scheduled by DCI2 transmitted by time domain overlap completely in the time domain. For the case shown in fig. 3 (a), the terminal device determines, according to the time-frequency positions of the PDSCHs indicated by DCI1 and DCI2, that the PDSCH1 scheduled by TRP1 and the PDSCH2 scheduled by TRP2 do not overlap on time-frequency at all, and there is generally no interference between them, so that the terminal device does not need to perform interference cancellation or interference suppression on the PDSCH1 and PDSCH2, and at this time, the terminal device may demodulate the PDSCH1 and PDSCH2 as an integral PDSCH, and compared with separately coding data carried by the PDSCH1 or PDSCH2, the data carried by the integral PDSCH is coded as a coding block, so the code length of the data carried by the integral PDSCH is longer, and the demodulation performance is better. For the cases shown in fig. 3 (b) and fig. 3 (c), the terminal device determines, according to the time-frequency positions of the PDSCHs indicated by the DCI1 and the DCI2, that the PDSCH1 scheduled by the TRP1 and the PDSCH2 scheduled by the TRP2 overlap in time-frequency, and interference may exist between them, at this time, the terminal device may demodulate the PDSCH1 and the PDSCH2 as an integrated PDSCH, or the terminal device may perform interference cancellation or interference suppression processing on the PDSCH1 and the PDSCH2 (for example, perform interference cancellation or interference suppression on the interference generated by the PDSCH1, so as to demodulate the PDSCH2, or perform interference cancellation or interference suppression on the interference generated by the PDSCH2, so as to demodulate the PDSCH 1), so as to achieve better demodulation performance. That is, in the three cases shown in fig. 3, the terminal device may perform joint processing on DCI1 and DCI2, and during the joint processing, the terminal device may also perform interference cancellation or interference suppression between PDSCHs in which interference exists (as shown in (b) in fig. 3 and (c) in fig. 3), and the following mainly describes a case where interference exists between PDSCHs.

If the terminal device detects two DCIs, there may be one case shown in (a) in fig. 3 or (b) in fig. 3 or (c) in fig. 3 between the two DCI scheduled PDSCHs, and if the terminal device detects two or more DCIs, there may be one or more cases shown in (a) in fig. 3, (b) in fig. 3, or (c) in fig. 3 between the two or more DCIs.

In one possible scenario, the PDSCH scheduled by each DCI detected by the terminal device may interfere with each other. For example, the terminal device may perform interference suppression or interference cancellation on interference at a time-frequency position of the PDSCH indicated by each DCI in all DCIs, attempt demodulation on the PDSCH scheduled by each DCI (at this time, each PDSCH is used as a channel for data reception), or attempt demodulation on the PDSCH scheduled by all DCIs as an entire PDSCH (at this time, the entire PDSCH is used as a channel for data reception).

In another possible scenario, there may be interference between PDSCH scheduled by partial DCI detected by the terminal device. For example, the terminal device may perform interference suppression or interference cancellation on interference at a time-frequency position of the PDSCH indicated by each DCI in the partial DCI with interference, and attempt demodulation on the PDSCH scheduled by each DCI in the partial DCI with interference, or attempt demodulation on the PDSCH scheduled by the partial DCI with interference as one PDSCH.

Taking two TRPs as an example, the terminal device may perform joint processing on two detected DCIs.

In one possible approach, the terminal device detects 2 DCIs, and needs to perform joint processing on the PDSCHs of the 2 DCIs. And the terminal equipment demodulates to obtain DCI1 and DCI2, and obtains scheduling information and the like included in the DCI1 and the DCI2. The terminal device may determine, by using the scheduling information included in the DCI2, which RBs the PDSCH2 scheduled by the DCI2 causes interference to the PDSCH1, and determine, according to information such as the DMRS of the PDSCH2, an interference value generated by the PDSCH2, so that the terminal device may perform interference suppression or interference cancellation on the interference generated by the PDSCH2 on the PDSCH1, thereby demodulating the PDSCH1 scheduled by the DCI 1. Similarly, the terminal device may determine that the PDSCH1 scheduled by the DCI1 interferes with the PDSCH2, perform interference suppression or interference cancellation on the interference, and demodulate the PDSCH2 scheduled by the DCI2. It can be understood that there are various interference suppression or interference cancellation means, which are not limited herein, for example, the terminal device may determine a time-frequency position of the PDSCH2 included in the DCI2, and then determine that the PDSCH2 may generate interference in the time-frequency position, if the terminal device may determine a specific DMRS sequence of the PDSCH2, and then demodulate an interference channel of the PDSCH2 relative to the PDSCH1, if the terminal device may demodulate specific symbol information of the PDSCH2, and then perform interference cancellation in the PDSCH1. In this scheme, the terminal device uses information of another DCI (e.g., DCI 2) when demodulating one PDSCH (e.g., DCI 1-scheduled PDSCH 1), but does not perform demodulation processing on the PDSCH of the other DCI (DCI 2-scheduled PDSCH 2) itself.

In another possible mode, after the terminal device demodulates DCI1 and DCI2, the terminal device performs joint processing on scheduling information included in DCI1 and DCI2 to form an overall PDSCH, and then demodulates the PDSCH. The RBs occupied by PDSCH1 scheduled by DCI1 and the RBs occupied by PDSCH2 scheduled by DCI2 may be the same or different. For example, DCI1 schedules PDSCH1 to occupy RBs 1 to 10, referred to as stream 1, DCI2 PDSCH2 occupies RBs 1 to 10, referred to as stream 2, the terminal device combines the stream 1 and the stream 2 into two-stream PDSCH, each stream PDSCH can be mapped to its corresponding RB, and the terminal device attempts to receive downlink data on these two streams RB1 to 10. If PDSCH1 and PDSCH2 are different RBs, such as PDSCH1 corresponding to RB 1-10, PDSCH2 corresponding to RB 5-15, the terminal device may need to distinguish resources when mapping data streams, for example, mapping 1 st stream to RB 1-10, mapping 2 nd stream to RB 5-15, and the terminal device trying to receive downlink data on RB 1-15.

Optionally, the terminal device may perform joint processing on at least two pieces of DCI with the same hybrid automatic repeat request (HARQ) process (or process number) among the multiple pieces of DCI, where the DCI with different HARQ processes is processed separately. For example, the terminal device detects two DCIs, DCI1 and DCI2, if HARQ processes of the DCI1 and the DCI2 are the same, the terminal device may perform joint processing on the DCI1 and the DCI2, and if HARQ processes of the DCI1 and the DCI2 are different, the terminal device may perform processing on the DCI1 and the DCI2, respectively.

In one implementation, each DCI of the multiple DCIs includes first indication information, where the first indication information is used to indicate a codeword number, and the codeword number may be used to indicate the number of codewords that can be scheduled per HARQ process. The first indication information may be New Data Indication (NDI) equal to codeword related indication information. Optionally, the code word number is 1 or 2. For example, when the control resource set pool index (coresetpoilndex) =0 in the first DCI, the scheduled codeword number is 1, and when the coresetpoilndex =1 in the second DCI, the scheduled codeword number is 1 or 2. For example, there are 16 HARQ processes, when the code word number is 1, each HARQ process may schedule 1 code word, and 16 HARQ processes may schedule 16 code words in total, and when the code word number is 2, each HARQ process may schedule 2 code words, and 16 HARQ processes may schedule 32 code words in total, so that flexibility of scheduling data by the radio access network device may be improved.

Generally, after reading the decoded PDSCH, the terminal device reports a corresponding HARQ feedback to the radio access network device. The terminal device may determine the HARQ feedback delay according to the processing delay of the multiple DCIs, and since the processing delay of the multiple DCIs is greater than the processing delay of a single DCI, the terminal device may additionally add a set first time length on the basis of the processing delay of the single DCI as the processing delay of the multiple DCIs. The value of the first duration is arbitrary, for example, the first duration is longer than the processing delay of a single DCI, and is less than or equal to the sum of the durations of n DCI processed separately, n represents the number of DCI processed jointly, and n is a positive integer. In one possible implementation, the first duration is N symbols, and N is a positive integer. And the terminal equipment performs HARQ feedback after the time delay of the HARQ feedback, and can feed back HARQ-ACK if the downlink data is successfully received, and can feed back HARQ-NACK if the downlink data is not successfully received.

In fig. 4, a cross-hatched portion indicates TRP1 available resources, a vertical-hatched portion indicates TRP2 available resources, and a grid-hatched portion indicates shared resources of TRP1 and TRP 2. The maximum number of CCEs and/or PDCCH candidates that the terminal device can process in one carrier is referred to as 1 time capability of the terminal device. Fig. 4 (a) shows a multi-station multi-DCI scenario, where TRP1 and TRP2 belong to different sites (e.g., different base stations or different cells), TRP1 transmits DCI1, TRP2 transmits DCI2, and a terminal device processes DCI of 2 TRPs, respectively, so that demodulation performance is low. The first parameter value R =2 received by the terminal device, and the terminal device detects DCI1 of TRP1 on TRP1 available resources (available resources corresponding to 1 time of capability) and DCI2 of TRP2 on TRP2 available resources (available resources corresponding to 1 time of capability). The available resources corresponding to 1 time of capability refer to processing resources allocated by the terminal device and used for processing the PDSCH scheduled by using 1 time of capability, for example, the processing resources of the terminal device are 100%, and the processing resources corresponding to 1 time of capability are 20%, so that the terminal device may detect DCI1 by using 20% of the processing resources (i.e., 1 time of capability), and detect DCI2 by using 20% of the processing resources (i.e., 1 time of capability). If the terminal device has 1 time of capability, it may perform blind detection on each cell x times, and under the conditions that coresetpoolndex =0 of TRP1 and coresetpoolndex =1 of TRP2, the terminal device detects the cell with coresetpoolndex =0 x times by using 1 time of capability, and detects the cell with coresetpoolndex =1 x times by using 1 time of capability, at this time, the total number of blind detections performed by the terminal device on the two cells is 2x, and the terminal device may perform joint processing on DCI scheduled PDSCH which is blind detected 2x times.

Fig. 4 (b) shows a single-site multi-DCI scenario, where TRP1 and TRP2 belong to the same site. And the terminal device receives the first parameter value R =1.5, the terminal device may use half of the carrier resources to perform joint detection, and perform independent detection on the remaining carrier resources, where the DCI detected by the joint detection is used for joint processing. The terminal equipment detects DCI1 of TRP1 on TRP1 available resources (available resources corresponding to 0.5 times of capability), detects DCI2 of TRP2 on TRP2 available resources (available resources corresponding to 0.5 times of capability), detects DCI1 of TRP1 and DCI2 of TRP2 on shared resources (shared resources corresponding to 0.25 times of capability) of TRP1 and TRP2, and performs joint processing on the DCI1 and the DCI2 detected on the shared resources. If the terminal device adopts 1-time capability, it may perform blind detection on each cell x times, where under the conditions of coresetpoieldindex =0 and coresetpoieldindex =1, the terminal device adopts 0.75-time capability, and the number of times of cell detection on coresetpoieldindex =0 is less than x, and the number of times of cell detection on coresetpoieldindex =1 is less than x, where the total number of times of blind detection performed by the terminal device on one cell is y, where y may be the sum of the number of times of cell detection on coresetpoieldindex =0 and the number of times of cell detection on coresetpoieldindex =1.

The signaling processing method provided by the embodiment of the application can be applied to a single-station multi-DCI scene and can also be applied to a multi-station multi-DCI scene. Especially in a single-station scenario, when the scheduling mode in the communication system is not flexible enough to process a complex channel environment, the scheduling flexibility can be improved by the multi-DCI technology, and the method is suitable for the processing process in the complex channel environment.

In the signaling processing method provided in the embodiment of the present application, when the terminal device has the capability of jointly processing multiple DCIs, the terminal device may jointly process all or part of the detected multiple DCIs, thereby improving the demodulation performance of the signaling. If the terminal device performs joint processing on part of the DCI, the processing complexity can be further reduced.

Based on the same technical concept as the signaling configuration method, the embodiment of the present application further provides a communication apparatus, as shown in fig. 5, a communication apparatus 500 includes a processing unit 501 and a transceiver unit 502, and the communication apparatus 500 may be configured to implement the method described in the foregoing method embodiment. The apparatus 500 may be applied to or located in a terminal device or a radio access network device.

In one possible embodiment, the apparatus 500 is a terminal device.

A transceiver unit 502, configured to receive a first parameter value sent by a radio access network device, where the first parameter value is a requirement for a capability of a terminal device to jointly process multiple DCIs, the first parameter value is greater than a first preset value, and the first parameter value is less than or equal to a second preset value, where the first preset value is less than the second preset value, the first preset value is a minimum value of a number of nodes for scheduling the DCIs, and the second preset value is a maximum value of the number of nodes for scheduling the DCIs;

a processing unit 501, configured to perform joint processing on the multiple detected DCIs according to the first parameter value.

In one implementation, the first preset value is 1, and/or the second preset value is 2.

In an implementation manner, the processing unit 501 is further configured to perform joint processing on the first DCI and the second DCI if HARQ processes of the first DCI and the second DCI in the multiple DCIs are the same.

In an implementation manner, the processing unit 501 is further configured to process the first DCI and the second DCI respectively if HARQ processes of the first DCI and the second DCI are different in the plurality of DCIs.

In one implementation, each DCI of the multiple DCIs includes first indication information, and the first indication information is used for indicating a code word number.

In one implementation, the codeword is numbered 1 or 2.

In an implementation, the processing unit 501 is specifically configured to, for one DCI of the multiple DCIs, the terminal device demodulates, according to the scheduling information of the DCI, the PDSCH of the physical downlink shared channels of the remaining DCIs of the multiple DCIs respectively; or for one of the plurality of DCIs, the terminal device demodulates the PDSCH of the DCI according to the scheduling information of one or more of the rest DCIs in the plurality of DCIs; or the terminal equipment determines the PDSCHs of the DCIs according to the scheduling information of the DCIs and demodulates the PDSCHs.

In one implementation, the transceiving unit 502 is further configured to send the capability of jointly processing multiple DCIs to the radio access network device.

In one implementation, the processing unit 501 is further configured to determine a HARQ feedback delay according to processing delays of multiple DCIs, where the processing delays of the multiple DCIs are greater than the processing delay of a single DCI;

the transceiving unit 502 is further configured to perform HARQ feedback after the delay of the HARQ feedback.

In another possible embodiment, the apparatus 500 is a radio access network device.

A processing unit 501, configured to determine a first reference value, where the first parameter value is a requirement for a capability of a terminal device for jointly processing multiple DCIs, the first parameter value is greater than a first preset value and smaller than a second preset value, and the first preset value is smaller than the second preset value, where the first preset value is a minimum value of a number of nodes for scheduling the DCI, and the second preset value is a maximum value of the number of nodes for scheduling the DCI;

a transceiving unit 502, configured to send the first reference value to the terminal device.

In one implementation, the transceiving unit 502 is further configured to receive a capability of a terminal device to jointly process multiple DCIs from the terminal device.

It should be noted that, the division of the modules in the embodiments of the present application is schematic, and is only a logical function division, and in actual implementation, there may be another division manner, and in addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. With this understanding, the integrated unit may be stored in a storage medium as a computer software product, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a radio access network device) or a processor (processor) to execute all or part of the steps of the methods according to the embodiments of the present application.

As shown in fig. 6, an embodiment of the present application further provides a schematic structural diagram of a communication device 600. The apparatus 600 may be used to implement the methods described in the above method embodiments, and reference may be made to the description of the above method embodiments.

The apparatus 600 includes one or more processors 601. The processor 601 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program. The communication apparatus may include a transceiving unit to enable input (reception) and output (transmission) of signals. For example, the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The apparatus 600 includes one or more processors 601, and the one or more processors 601 may implement the methods in the illustrated embodiments described above.

Optionally, the processor 601 may also implement other functions besides implementing the methods of the above-described illustrated embodiments.

Alternatively, in one design, processor 601 may execute instructions that cause apparatus 600 to perform the methods described in the above method embodiments. The instructions may be stored in whole or in part within the processor, such as instructions 603, or in whole or in part in a memory 602 coupled to the processor, such as instructions 604, or may collectively cause the apparatus 600 to perform the methods described in the above method embodiments, via

instructions

603 and 604. The instructions 603 are also referred to as computer programs.

In yet another possible design, the communication device 600 may also include a circuit, which may implement the functions in the foregoing method embodiments.

In yet another possible design, the apparatus 600 may include one or more memories 602 having instructions 604 stored thereon, which may be executed on a processor, to cause the apparatus 600 to perform the methods described in the above method embodiments. Optionally, the memory may also store data. Instructions and/or data may also be stored in the optional processor. For example, the one or more memories 602 may store the correspondence described in the above embodiments, or the related parameters or tables referred to in the above embodiments, and the like. The processor and the memory may be provided separately or may be integrated together.

In yet another possible design, apparatus 600 may also include transceiver 605 and antenna 606. The processor 601 may be referred to as a processing unit and controls a device (terminal or base station). The transceiver 605 may be referred to as a transceiver, a transceiving circuit, a transceiving unit, etc. for implementing transceiving functions of the apparatus through the antenna 606.

The processor may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), one or more integrated circuits for controlling the execution of programs in accordance with the teachings of the present application, a general-purpose processor, a Digital Signal Processor (DSP), an off-the-shelf programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be stored on a storage medium that is located in memory.

The memory may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory. The memory may be separate and coupled to the processor via a communication link. The memory may also be integral to the processor.

It is to be understood that the architecture shown in fig. 7 does not constitute a specific limitation to the terminal device and the radio access network device. For example, in other embodiments of the present application, an end device or a radio access network device may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components may be used. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The embodiment of the present application further provides a computer-readable medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the signaling processing method of any of the above method embodiments.

An embodiment of the present application further provides a computer program product, which includes a computer program, and when the computer program is executed by a computer, the signaling processing method of any one of the method embodiments described above is implemented.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, 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. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer instructions are loaded and executed on a computer. The computer may be the communication device described above. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium. The computer-readable storage medium may be the above-mentioned storage medium or the above-mentioned memory.

In one possible design, when the communication device is a chip, such as a chip in a radio access network device or a chip in a terminal device, the determining unit or processor 601 may be one or more logic circuits, and the transmitting unit or receiving unit or transceiver 605 may be an input/output interface, also referred to as a communication interface, or an interface circuit, or an interface, or the like. Or the transceiver 605 may also be a transmitting unit which may be an output interface and a receiving unit which may be an input interface, which are integrated in one unit, e.g. an input-output interface. As shown in fig. 7, the communication apparatus shown in fig. 7 includes a logic circuit 701 and an interface circuit 702. I.e. the above-mentioned determining unit or processor 601 may be implemented with a logic circuit 701 and the transmitting unit or receiving unit or transceiver 605 may be implemented with an interface circuit 702. The logic circuit 701 may be a chip, a processing circuit, an integrated circuit, or a system on chip (SoC) chip, and the interface circuit 702 may be a communication interface, an input/output interface, and the like. In the embodiment of the present application, the logic circuit and the interface circuit may also be coupled to each other. The embodiment of the present application is not limited to a specific connection manner between the logic circuit and the interface circuit.

In some embodiments of the present application, the logic and interface circuits may be configured to perform the functions or operations performed by the above-described radio access network device or terminal device, and the like.

Illustratively, interface circuit 702 is configured to receive a first parameter value.

The logic 701 is configured to jointly process the detected multiple dcis.

The functions or operations performed by the radio access network device or the terminal device may refer to the foregoing method embodiments, and are not described in detail herein.

Those of ordinary skill in the art will appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented in hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer.

In short, the above are only examples of the technical solutions of the present application, and are not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for signaling, comprising:

the method comprises the steps that terminal equipment receives a first parameter value from wireless access network equipment, wherein the first parameter value is the requirement on the capacity of the terminal equipment for jointly processing a plurality of downlink control information DCI (downlink control information), the first parameter value is larger than a first preset value and smaller than or equal to a second preset value, the first preset value is smaller than the second preset value, the first preset value is the minimum value of the number of nodes for scheduling the DCI, and the second preset value is the maximum value of the number of the nodes for scheduling the DCI;

and the terminal equipment performs joint processing on the plurality of detected DCIs according to the first parameter value.

2. The method of claim 1, wherein the joint processing of the detected multiple DCIs by the terminal device comprises:

for one DCI in the DCIs, the terminal equipment demodulates the PDSCHs of the rest DCIs in the DCIs respectively according to the scheduling information of the DCI; or

For one DCI in the plurality of DCIs, the terminal equipment demodulates the PDSCH of the DCI according to the scheduling information of one or more DCIs in the rest DCIs in the plurality of DCIs; or

And the terminal equipment determines PDSCHs of the DCIs according to the scheduling information of the DCIs and demodulates the PDSCHs.

3. The method of claim 1 or 2, wherein the first predetermined value is 1 and the second predetermined value is 2.

4. The method of any one of claims 1-3, wherein if a hybrid automatic repeat request (HARQ) process of a first DCI and a second DCI in the plurality of DCIs is the same, further comprising:

and the terminal equipment performs joint processing on the first DCI and the second DCI.

5. The method of any of claims 1-4, wherein each DCI of the plurality of DCIs includes first indication information, the first indication information indicating a codeword number.

6. The method of claim 5, wherein the codeword is numbered 1 or 2.

7. The method of any of claims 1-6, wherein prior to the terminal device receiving the first parameter value from the radio access network device, further comprising:

and the terminal equipment sends the capacity of jointly processing a plurality of DCIs to the wireless access network equipment.

8. The method of any one of claims 1-7, further comprising:

the terminal equipment determines the time delay of HARQ feedback according to the processing time delays of a plurality of DCIs, wherein the processing time delays of the plurality of DCIs are larger than that of a single DCI;

and the terminal equipment performs HARQ feedback after the time delay of the HARQ feedback.

9. A method for signaling, comprising:

the method comprises the steps that a wireless access network device determines a first reference value, wherein the first parameter value is the requirement of the terminal device for the capacity of jointly processing a plurality of downlink control information DCI, the first parameter value is larger than a first preset value and smaller than or equal to a second preset value, the first preset value is smaller than the second preset value, the first preset value is the minimum value of the number of nodes for scheduling the DCI, and the second preset value is the maximum value of the number of the nodes for scheduling the DCI;

and the radio access network equipment sends the first reference value to the terminal equipment.

10. The method of claim 9, wherein the first predetermined value is 1 and the second predetermined value is 2.

11. The method of claim 9 or 10, wherein prior to the radio access network device determining the first reference value, further comprising:

the radio access network equipment receives the terminal equipment joint processing capacity of a plurality of DCIs from the terminal equipment.

12. A communications apparatus, comprising:

a transceiver unit, configured to receive a first parameter value from a radio access network device, where the first parameter value is a requirement for a capability of the terminal device to jointly process multiple downlink control information DCIs, the first parameter value is greater than a first preset value and smaller than or equal to a second preset value, the first preset value is smaller than the second preset value, the first preset value is a minimum value of a number of nodes that schedule the DCI, and the second preset value is a maximum value of the number of nodes that schedule the DCI;

and the processing unit is used for carrying out joint processing on the plurality of detected DCIs according to the first parameter value.

13. The apparatus of claim 12, wherein the processing unit is specifically configured to, for one DCI of the multiple DCIs, demodulate, according to the scheduling information of the DCI, the PDSCH of the physical downlink shared channel of the remaining DCIs of the multiple DCIs respectively; or; for one DCI in the plurality of DCIs, demodulating a PDSCH of the DCI according to scheduling information of one or more DCIs in the rest DCIs in the plurality of DCIs; or determining PDSCHs of the DCIs according to the scheduling information of the DCIs, and demodulating the PDSCHs.

14. The apparatus of claim 12 or 13, wherein the first predetermined value is 1 and the second predetermined value is 2.

15. The apparatus of any one of claims 12-13, wherein the processing unit is further configured to jointly process a first DCI and a second DCI of the plurality of DCIs if their hybrid automatic repeat request HARQ processes are the same.

16. The apparatus of any one of claims 12-15, wherein each DCI of the plurality of DCIs includes first indication information indicating a codeword number.

17. The apparatus of claim 16, wherein the codeword is numbered 1 or 2.

18. The apparatus of any of claims 12-17, wherein the transceiver unit is further configured to send the capability to jointly process multiple DCIs to the radio access network device.

19. The apparatus of any one of claims 12-18, wherein the processing unit is further configured to determine the delay for HARQ feedback based on processing delays for a plurality of DCIs, the processing delays for the plurality of DCIs being greater than the processing delay for a single DCI;

the transceiving unit is further configured to perform HARQ feedback after the delay of the HARQ feedback.

20. A communications apparatus, comprising:

a processing unit, configured to determine a first reference value, where the first parameter value is a requirement for a capability of a terminal device to jointly process multiple downlink control information DCIs, the first parameter value is greater than a first preset value and is less than or equal to a second preset value, the first preset value is less than the second preset value, the first preset value is a minimum value of a number of nodes that schedule the DCI, and the second preset value is a maximum value of the number of nodes that schedule the DCI;

and the transceiving unit is used for sending the first reference value to the terminal equipment.

21. The apparatus of claim 20, wherein the first predetermined value is 1 and the second predetermined value is 2.

22. The apparatus of claim 20 or 21, wherein the transceiver unit is further configured to receive, from the terminal device, a capability of the terminal device to jointly process multiple DCIs.

23. A communications apparatus comprising a processor and a memory, the processor coupled with the memory;

the memory stores a computer program;

a processor for executing a computer program stored in the memory to cause the apparatus to perform the method of any of claims 1-8 or to cause the apparatus to perform the method of any of claims 9-11.

24. A communication device comprising logic circuitry and interface circuitry;

the interface circuit is used for communicating with a module outside the communication device;

the logic circuitry is for executing a computer program to cause the communication apparatus to perform the method of any of claims 1-8 or to cause the communication apparatus to perform the method of any of claims 9-11.

25. A computer-readable storage medium, comprising a computer program which, when run on a computer, causes the method of any one of claims 1-8 to be performed, or causes the method of any one of claims 9-11 to be performed.

26. A computer program product, comprising a computer program which, when run on a computer, causes the method of any of claims 1-8 to be performed, or causes the method of any of claims 9-11 to be performed.